CN116984617A - Automatic batch charging type copper powder water atomization processing device and processing technology - Google Patents

Abstract

The application discloses an automatic batch charging copper powder water atomization processing device and a processing technology, and relates to the technical field of copper powder processing. This device is through empting unit, storage unit, automatic feed supplement unit, drive unit and positioning unit cooperation, in anaerobic environment, carries out batch charging operation towards in the crucible heating furnace voluntarily, and when carrying out automatic feeding, upwards feeds in proper order along crucible heating furnace inner chamber bottom, and copper billet and crucible produce strong collision when can effectively avoiding the eminence unloading.

Description

An automatic batch feeding copper powder water atomization processing device and processing technology

Technical field

The invention relates to the technical field of copper powder processing, and in particular to an automatic batch feeding type copper powder water atomization processing device and processing technology.

Background technique

A copper powder water atomizer is used during copper powder water atomization processing. This is done by sending the copper block or copper alloy block into the crucible heating furnace to heat it into a molten state and then pouring it into the intermediate leakage bag. High-pressure cooling water flows from The atomized spray plate sprays water to disperse and cool the solution dripping from the middle leakage package to form copper powder. In order to obtain copper powder with low oxygen content (copper powder with low oxygen content has good conductivity properties, thermal conductivity, corrosion resistance and formability), the inside of the machine is generally evacuated and then filled with protective gas (i.e. inert gas, such as nitrogen), so that the water atomization processing of copper powder can be carried out in an oxygen-free environment. , to prevent the oxygen contained in the body from melting into the copper powder formed, causing the problem of high oxygen content. At the same time, a storage tank is set up in the lower part of the body that is connected to the inner cavity of the body to store the copper powder and copper powder formed after the treatment water is atomized. Cooling water mixture, the discharge port of the storage tank is closed by a valve. When the internal material accumulates to a certain height, the material is discharged manually. Since the copper powder is heavier, it is deposited at the bottom. The valve is opened and closed to remove the deposited material at the bottom. The copper powder and part of the cooling water are discharged from the discharge port, and the remaining cooling water inside forms a liquid seal to prevent external oxygen from entering the inside of the tank through the discharge port during manual discharge.

When the existing copper powder water atomizer is used to produce copper powder in large quantities, due to the limited capacity of the crucible heating furnace, only a certain amount of copper blocks or copper alloy blocks can be added each time. When the dumping unit installed inside the machine body will After the molten copper block or copper alloy block is poured into the intermediate leakage bag, a certain amount of copper block or copper alloy block needs to be manually added to the crucible heating furnace again for batch smelting, because it is necessary to ensure that the water atomization process is in the absence of oxygen. It is carried out in an environment, so every time after the closing plate is opened to feed the crucible heating furnace, the vacuum needs to be re-evacuated and the protective gas flushed, which makes the whole operation more troublesome. At the same time, the opening and closing plate is frequently opened and closed, which easily allows oxygen to enter the body ( When the material is discharged for the second time, external air enters the inside of the machine body and contacts the molten copper metal liquid in the middle leakage bag to cause an oxidation reaction to form oxides. These oxides will dissolve in the molten copper metal, increasing the oxygen content in the metal liquid, ultimately resulting in a higher internal oxygen content in the subsequently formed copper powder. Therefore, this application provides an automatic batch feeding type copper powder. Water atomization processing equipment and processing technology to meet the needs.

Contents of the invention

The purpose of this application is to provide an automatic batch feeding type copper powder water atomization processing device and processing technology to solve the problem of frequent manual feeding, vacuuming and injecting protective gas, which makes the entire operation more troublesome and easy to cause subsequent problems. Technical problems with high oxygen content in copper powder.

In order to achieve the above purpose, this application provides the following technical solution: an automatic batch feeding copper powder water atomization processing device, including a shell with a crucible heating furnace and an intermediate leakage bag inside, and the lower end of the shell is sealed There is a storage bucket, the leakage port of the middle leakage bag is located in the inner cavity of the storage bucket, the periphery of the leakage port is provided with an atomization spray disk, and the upper end of the housing is equipped with a valve. An evacuation tube and a protective gas injection tube, and a pouring unit for pouring the furnace liquid in the crucible heating furnace into the intermediate leakage bag is also installed in the housing, and also includes

Storage unit: used to provide the copper blocks required for continuous heating and smelting by the crucible heating furnace;

Automatic feeding unit: used to receive the copper blocks discharged from the storage unit each time and automatically add them to the vacant crucible heating furnace for smelting;

Transmission unit: When the crucible heating furnace uses the pouring unit to pour materials into the intermediate leakage bag, it is used to transmit the kinetic energy provided by the pouring unit to the storage unit, so that the storage unit moves toward Replenishing is carried out in the automatic replenishing unit. After the replenishing is completed, the automatic replenishing unit can be started to replenish the empty crucible heating furnace;

The storage unit, the automatic feeding unit and the transmission unit are sealed by a sealing cover, and the sealing cover communicates with the inner cavity of the housing.

Preferably, the pouring unit includes a first rotating shaft that is rotatably arranged in the inner cavity of the housing, one end of the first rotating shaft is connected to the output shaft of the drive motor, and the crucible heating furnace is fixedly installed on the first rotating shaft;

The storage unit includes an installation slot installed on the upper end of the housing and with both the upper end and the left end being open. The inner cavity of the installation slot is equipped with a chain plate conveyor belt, and the chain plate conveyor belt has a chain plate. A plurality of baffle plate groups are provided, and a charging cavity is formed between each baffle plate group. A cover body is fixed on the drive shaft of the chain plate conveyor belt, and the inner cavity of the cover body passes through a bearing. A first driven bevel gear is rotated, a mounting ring is fixed on the shaft of the first driven bevel gear, and an extrusion spring is installed on the mounting ring, and one end of the extrusion spring is connected to Rotate the pawl provided on the mounting ring to connect, and the inner cavity of the cover body is fixed with a ratchet that matches the pawl;

The automatic feeding unit includes two limiting columns and two blocking columns fixed on the upper end of the housing and oppositely arranged. The two limiting columns and the two blocking columns are respectively installed on corresponding On the U-shaped mounting plate, a return spring is set on the two limit columns, and a sliding rod with a through hole is provided above the two return springs and is slidably connected to the limit column. Both sliding rods are fixedly connected to the temporary storage barrel. The lower end of the temporary storage barrel runs through the housing and is located directly above the crucible heating furnace. The side ends of the temporary storage barrel are fixed. There is a U-shaped rod, and a support column is fixed at the outer end of the U-shaped rod. A second driven bevel gear and a disc are respectively installed at both ends of the shaft body that is rotated on the left side of the support column. The disc is equipped with There is a vertical slot passing through the axis. The bottom of the temporary storage bucket is slidably provided with two sliding plates for blocking the outlet at the bottom of the temporary storage bucket, and both ends of the two sliding plates pass through The closed spring is connected to the temporary storage bucket, and the two sliding plates are fixedly connected to the lower end of the L-shaped rod movable in the inner cavity of the temporary storage bucket through a drawstring that runs through the axis of the closed spring. The lower end of the L-shaped rod is connected to the tension spring installed in the inner cavity of the temporary storage barrel;

The transmission unit is provided with three groups. The transmission unit includes a second rotating shaft arranged for rotation. Transmission bevel gears are installed at both ends of the second rotating shaft. The lower parts of the two groups of transmission units are respectively connected with the first rotating shaft. The two driving bevel gears fixedly sleeved on the rotating shaft are meshed and connected, and the upper ends of the two transmission units are meshed and connected with the second driven bevel gear and one end of the last group of transmission units respectively, and the last group of the transmission units is meshed and connected. The other end of the transmission unit is meshed with the first driven bevel gear;

The sealing cover is provided with a first opening and closing plate with a sealing seal, and the side wall of the installation groove is provided with a second opening and closing plate for exposing the partition plate group below the chain plate conveyor belt. In line of sight, there is a distance between the upper end of the installation groove and the top of the inner cavity of the sealing cover, which is used for discharging materials into the charging cavity between the upper partition plate groups;

It also includes a positioning unit for positioning the two sliding plates in a fully opened state, when all the copper materials in the temporary storage barrel are discharged into the crucible heating furnace and the temporary storage barrel returns to its original state. After being positioned, the two sliding plates automatically move relative to each other to seal the discharge port.

Preferably, the positioning unit includes two positioning gear rods disposed in the inner cavity of the temporary storage bucket and corresponding to the two sliding plates, and the positioning gear rods slide through the inner cavity of the temporary storage bucket. A limit plate is provided, and a blocking ring is fixed on the positioning gear rod and above the limit plate. The upper end of the positioning gear rod is toothed with a tooth plate provided at the lower end of the L-shaped rod through a gear. The lower end of the positioning gear rod is fixed with a positioning head with a right-angled triangle structure, and the upper end of the slide plate is provided with a positioning groove that matches the positioning head.

Preferably, it also includes an automatic discharging unit for automatically and continuously discharging materials from the discharge port of the storage barrel to prevent accumulation of powder in the storage barrel.

Preferably, the automatic discharging unit includes a wide-mouth feeding part, the outer wall of the wide-mouth feeding part is provided with a mounting part, and the lower end of the wide-mouth feeding part is bevelled with a narrow-mouth unloading part, and the The narrow-mouth feeding part and the wide-mouth feeding part are both made of elastic materials. The feeding opening at the bottom of the narrow-mouth feeding part is sealed by the elastic force of the narrow-mouth feeding part itself.

The copper powder water atomization processing technology is characterized by: including the following steps:

S1: After opening the first opening and closing plate, open the second opening and closing plate, and uniformly discharge materials into the charging cavities of multiple partition plate groups. The amount of material discharging in each charging cavity shall not exceed the capacity of the crucible heating furnace during one melting. For the maximum discharge amount, when the upper and lower loading chambers of the chain plate conveyor belt have discharged materials, close the second opening and closing plate, and then seal and close the first opening and closing plate;

S2: Use the vacuum pump and vacuum pipe installation to extract the gas inside the shell, sealing cover and storage barrel, and then rush the protective gas into the shell, sealing cover and storage barrel through the protective gas injection pipe:

S3, the PLC controller controls the driving motor to drive the vacant crucible heating furnace to perform the first rotation and dumping operation into the vacant middle leakage bag. After completion, the vacant crucible heating furnace returns to its original position. During this process, the driving motor will The chain plate conveyor belt is driven to move and feed into the automatic feeding unit. Each feeding is the amount accommodated by one charging cavity. When the crucible heating furnace returns to its original position, the automatic feeding unit automatically moves downward, causing it to exit. The material port moves to the inside of the crucible heating furnace to discharge materials. After the discharge is completed, the automatic replenishing unit automatically returns to its original position. The crucible heating furnace heats according to the set heating time (the number of heating times of the crucible heating furnace can be based on the actual charging time). Set the number of charging chambers), perform a second rotation and dumping operation after heating, and then perform an automatic feeding operation with the cooperation of the chain plate conveyor belt and the automatic feeding unit. This repeats to achieve continuous automatic operation of the device;

S4: Before pouring the melt into the middle leaking bag for the first time, open the cooling water pipe so that the cooling water can be sprayed out from the atomization spray plate in advance. The copper liquid dripping from the outlet of the middle leaking bag can be It is broken up and cooled, and the resulting mixture of copper powder and coolant is automatically discharged through the automatic discharging unit due to gravity.

Preferably, in step S3, before vacuuming, water is sprayed through the atomizing spray plate so that there is a certain amount of cooling liquid in the inner cavity of the wide-mouth feed part.

Preferably, in step S4, the cooling water is pure oxygen-free water.

In summary, the technical effects and advantages of the present invention are:

The structure of the invention is reasonable. Through the cooperation of the dumping unit, the storage unit, the automatic feeding unit, the transmission unit and the positioning unit, the device automatically performs batch feeding operations into the crucible heating furnace in an oxygen-free environment, eliminating the need for frequent manual feeding. materials, vacuuming and replenishing protective gas to reduce unnecessary troubles and reduce labor intensity. At the same time, it also avoids the problem of excessive oxygen content in the powder caused by external oxygen entering the inside of the working shell. During automatic feeding, feeding upwards along the bottom of the crucible heating furnace cavity can effectively avoid the strong collision between the copper block and the crucible when unloading materials at a high place, which will damage the crucible or produce more debris (which is the crucible material) and cause subsequent formation of Copper powder contains more of this debris impurity;

In the present invention, an automatic discharging unit is also provided, which can discharge the overweight part in the storage barrel, and always keep a certain amount of coolant in the cavity of the wide-mouth feeding part to keep the seal, so as to avoid the accumulation of materials inside the storage barrel, and can realize Continuous operation of this device.

Description of drawings

In order to explain the embodiments of the present application or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only These are some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic diagram of the three-dimensional structure of the present invention;

Figure 2 is a front cross-sectional structural view of the present invention;

Figure 3 is a partial structural schematic diagram of the storage unit in Figure 2 of the present invention;

Figure 4 is a schematic structural diagram of the ratchet and pawl of the storage unit in Figure 2 of the present invention;

Figure 5 is a schematic structural diagram of the automatic feeding unit in Figure 2 of the present invention;

Figure 6 is a diagram showing the installation position of the support column in Figure 5 of the present invention;

Figure 7 is a schematic diagram of the disk structure in Figure 6 of the present invention;

Figure 8 is a schematic structural diagram of the temporary storage barrel in Figure 5 from above;

Figure 9 is a schematic cross-sectional view of the temporary storage barrel in Figure 5 of the present invention;

Figure 10 is an enlarged structural schematic diagram of position A in Figure 9 of the present invention;

Figure 11 is a schematic structural diagram of the automatic discharging unit of the present invention.

In the picture: 1. Shell; 2. Evacuation pipe; 3. Protective gas injection pipe; 4. Storage barrel; 5. Atomization spray plate; 6. Middle leakage bag; 7. Storage unit; 71. Installation Groove; 72. Separator plate group; 73. Chain plate conveyor belt; 74. Cover body; 75. First driven bevel gear; 76. Bearing; 77. Mounting ring; 78. Extrusion spring; 79. Pawl ; 710. Ratchet; 711. Second opening and closing plate; 8. Automatic feeding unit; 81. Temporary storage bucket; 82. Slide rod; 83. Limiting column; 84. Return spring; 85. Blocking column; 86. Circle Disk; 87. Second driven bevel gear; 88. L-shaped rod; 89. Vertical slot; 810. Support column; 811. Slide plate; 812. Closed spring; 813. Pull cord; 814. Tension spring; 9. Through hole; 10. Crucible heating furnace; 11. First rotating shaft; 12. Driving motor; 13. Sealing cover; 14. First opening and closing plate; 15. Transmission unit; 16. Tooth plate; 17. Gear; 18. Limit plate; 19. Positioning gear rod; 20. Stop ring; 21. Positioning head; 22. Positioning groove; 23. Automatic discharging unit; 231. Installation part; 232. Wide mouth feeding part; 233. Narrow mouth bottom Materials Department.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

Embodiment: Refer to an automatic batch feeding type copper powder water atomization processing device shown in Figures 1-3, including a shell 1 with a crucible heating furnace 10 and an intermediate leakage bag 6 inside. The lower end of the shell 1 The storage barrel 4 is sealed, and the leakage port of the middle leakage bag 6 is located in the inner cavity of the storage barrel 4. An atomization spray disk 5 is provided around the leakage port, and a pump with a valve is installed at the upper end of the housing 1. The vacuum tube 2 and the protective gas injection tube 3 are also installed in the shell 1 for pouring the furnace liquid in the crucible heating furnace 10 into the intermediate leakage bag 6, and also includes a storage unit 7: used to provide the crucible The heating furnace 10 continuously heats the copper blocks required for smelting; the automatic feeding unit 8 is used to receive the copper blocks discharged from the storage unit 7 each time and automatically adds them to the vacant crucible heating furnace 10 for smelting; the transmission unit 15: When the crucible heating furnace 10 uses the pouring unit to pour materials into the intermediate leakage bag 6, the kinetic energy provided by the pouring unit is transmitted to the storage unit 7, so that the storage unit 7 moves toward the automatic feeding unit 8. After replenishing and discharging materials, the automatic replenishing unit 8 can be started to replenish the empty crucible heating furnace 10; the storage unit 7, the automatic replenishing unit 8 and the transmission unit 15 are sealed by the sealing cover 13 and The sealing cover 13 communicates with the inner cavity of the housing 1 .

When the device is in use, the required copper blocks added to the crucible heating furnace 10 in batches are stored in the storage unit 7 . Discharge materials toward the automatic feeding unit 8 (discharging materials into the automatic feeding unit 8 automatically while pouring materials can save time). When the crucible heating furnace 10 returns to its original position after each pouring is completed, the automatic The feeding unit 8 works toward the vacant crucible heating furnace 10 to perform feeding operations, and the entire operation is performed in an oxygen-free environment. This device can perform automatic feeding in an oxygen-free environment, without the need for frequent manual feeding and pumping. Vacuum and supplementary protective gas reduce unnecessary troubles, reduce labor intensity, and at the same time avoid the problem of excessive oxygen content in the powder formed by outside oxygen entering the inside of the working casing 1.

It should be noted that the drive motor 10 and the crucible heating furnace 10 are electrically connected to the PLC controller, and the PLC controller can control the interval time of each material pouring, the number of material pours, and the working status of each component.

As a preferred implementation of this embodiment, as shown in Figures 1-10, the pouring unit includes a first rotating shaft 11 that is rotatably arranged in the inner cavity of the housing 1. One end of the first rotating shaft 11 is connected to the output of the driving motor 12. Shaft connection, the crucible heating furnace 10 is fixedly installed on the first rotating shaft 11; the storage unit 7 includes a mounting slot 71 installed on the upper end of the housing 1 and both the upper end and the left end are open, and the inner cavity of the mounting slot 71 is equipped with a chain plate type Conveyor belt 73, and the chain plate of the chain plate conveyor belt 73 is provided with a plurality of baffle plate groups 72, and a charging cavity is formed between each baffle plate group 72. The drive shaft of the chain plate conveyor belt 73 is fixed with a The cover body 74 is provided with a first driven bevel gear 75 in the inner cavity of the cover body 74 for rotation through the bearing 76. A mounting ring 77 is fixed on the shaft of the first driven bevel gear 75, and the mounting ring 77 is mounted on the cover body 74. There is an extrusion spring 78, and one end of the extrusion spring 78 is connected to the pawl 79 that is rotated on the mounting ring 77. The inner cavity of the cover 74 is fixed with a ratchet 710 that matches the pawl 79; the automatic feeding unit 8 It includes two limiting columns 83 and two blocking columns 85 fixed on the upper end of the housing 1 and arranged oppositely. The two limiting columns 83 and the two blocking columns 85 are respectively installed on corresponding U-shaped mounting plates. Each limiting column 83 is provided with a return spring 84. Above the two return springs 84 is a sliding rod 82 that is slidably connected to the limiting column 83 and has a through hole 9. Both sliding rods 82 are connected to the limiting column 83. The temporary storage barrel 81 is fixedly connected. The lower end of the temporary storage barrel 81 penetrates the housing 1 and is located directly above the crucible heating furnace 10. A U-shaped rod is fixed on the side end of the temporary storage barrel 81, and the outer end of the U-shaped rod A support column 810 is fixed at the end, and a second driven bevel gear 87 and a disk 86 are respectively installed at both ends of the shaft body that is rotated on the left side of the support column 810. The disk 86 is provided with a vertical slot passing through the axis center. 89. The bottom of the temporary storage barrel 81 is slidably provided with two sliding plates 811 for blocking the outlet at the bottom of the temporary storage barrel 81, and both ends of the two sliding plates 811 are connected to the temporary storage barrel 81 through closed springs 812. Both sliding plates 811 are fixedly connected to the lower end of the L-shaped rod 88 movable in the inner cavity of the temporary storage bucket 81 through the pull rope 813 that penetrates the axis of the corresponding closed spring 812. The lower end of the L-shaped rod 88 is connected to the temporary storage bucket 81. The tension spring 814 installed in the cavity is connected; the transmission unit 15 is provided with three groups. The transmission unit 15 includes a second rotating shaft that is rotated. Transmission bevel gears are installed at both ends of the second rotating shaft. The lower parts of the two groups of transmission units 15 The upper ends of the two transmission units 15 are meshed and connected with the second driven bevel gear 87 and one end of the last group of transmission units 15 respectively. Finally, The other end of a set of transmission units 15 is meshed with the first driven bevel gear 75; the sealing cover 13 is provided with a first opening and closing plate 14 with a sealing block, and the side wall of the installation groove 71 is provided with a second opening and closing plate. 711 is used to expose the partition plate group 72 below the chain plate conveyor belt 73 to the line of sight. There is an end distance between the upper end of the installation groove 71 and the top of the inner cavity of the sealing cover 13, and is used to move the partition plate group 72 upward. It also includes a positioning unit for positioning the two sliding plates 811 in the open state, and when all the copper materials in the temporary storage barrel 81 are discharged to the crucible heating furnace 10, the two The sliding plate 811 automatically makes relative motion to seal the discharge port.

When the device is in use, the first opening and closing plate 14 and the second opening and closing plate 711 can be opened respectively, and charging operations can be performed toward the upper and lower loading chambers of the chain plate conveyor belt 73 respectively. After the loading is completed, the first opening and closing plate 711 can be opened. The closing plate 14 and the second opening and closing plate 711 are closed and vacuumed (the housing 1 communicates with the inner cavity of the storage barrel 4 through the liquid outlet of the intermediate leakage bag 6, so the gas in the inner cavity of the storage barrel 4 can be extracted) and Replenish the protective gas. After completion, the driving motor 10 is controlled to drive the vacant crucible heating furnace 10 to rotate clockwise for discharging. The three transmission mechanisms 15 drive the first driven bevel gear 75 (clockwise rotation) and the second driven bevel gear 75 (clockwise rotation) respectively. The second driven bevel gear 87 (forward rotation) rotates. Due to the existence of the ratchet 710 and the pawl 79, the clockwise rotating first driven bevel gear 75 rotates relative to the drive shaft of the chain plate conveyor belt 73. The chain plate conveyor belt 73 cannot be driven to operate. At this time, the support column 810 is located directly above the vertical slot 89. The rotation of the disc 86 will not affect the automatic feeding unit 8 at this time. When the pouring is completed, the crucible is heated. When the furnace 10 rotates counterclockwise and returns to its original position, the transmission unit 15 drives the first driven bevel gear 75 (counterclockwise rotation) and the second driven bevel gear 87 (reverse rotation) to rotate. The counterclockwise rotation of the driven bevel gear 75 will drive the chain plate conveyor belt 73 to move and add materials to the temporary storage bucket 81, which increases the weight of the temporary storage bucket 81 and compresses the return spring 84 to move downward. The support column 810 that moves downward will contact the outer surface of the disk 86 and form a support, so that the temporary storage barrel 81 after the weight gain cannot continue to move downward. When the crucible heating furnace 10 returns to its original position, the chain will After the loading of the plate conveyor 73 is completed (one copper block in the charging chamber is added each time), and the support column 810 moves to just above the vertical slot 89, through the gravity of the temporary storage barrel 81 containing the copper blocks function, the return spring 84 is compressed, the support column 810 of the temporary storage barrel 81 will move downward through the vertical slot 89, and the lower end of the temporary storage barrel 81 will move to the inner cavity of the crucible heating furnace 10 and continue to move downward. When the L-shaped rod 88 will contact the blocking column 89 passing through the through hole 9, as the temporary storage bucket 81 continues to move downward, the L-shaped rod 88 will pull the slide plate 811 through the pull rope 813 to compress the closing spring 812 movement, at the same time the tension spring 814 will be stretched, after the bottom outlet of the temporary storage barrel 81 is completely exposed (at this time, the distance between the lower end of the temporary storage barrel 81 and the bottom of the crucible heating furnace 10 is 0.5-3 centimeters or even shorter distance), the temporary storage bucket 81 will stop moving downward. At this time, the positioning unit positions the two sliding plates 811 (in the process of opening the two sliding plates 811, a small part of the copper blocks will never fully open. The discharge port is discharged (at this time, the lower end of the temporary storage barrel 81 is very close to the bottom of the crucible cavity, and the discharged copper block will not cause serious impact on the crucible). However, due to the effect of motion inertia, the temporary storage barrel 81 will continue to The downward movement makes an opening movement, and finally the discharge port is completely opened and the positioning unit positions the two sliding plates 811). As the copper blocks in the temporary storage barrel 81 are discharged, the overall weight of the temporary storage barrel 81 is reduced. Small, the elastic force of the two return springs 84 will drive the temporary storage bucket 81 to move upward. As the temporary storage bucket 81 moves upward, the copper blocks inside will be discharged from the discharge port in sequence, which can effectively avoid high When charging the crucible heating furnace 10, the copper block will cause a relatively violent collision with the crucible in the crucible heating furnace 10, so as to avoid the crucible being damaged or colliding with the crucible to produce more debris (which is the crucible material), which will cause subsequent The formed copper powder contains a lot of this debris impurity. When the temporary storage barrel 81 returns to its original position, the positioning unit will automatically release the positioning of the sliding plate 811, and the two sliding plates 811 will move towards the discharge port under the action of the elastic force of the closing spring 812. Make a seal.

It should be noted that: 1. The advantage of using the return spring 84 is that when the temporary storage barrel 81 moves downward, it first accelerates to facilitate its lower end to quickly enter the inner cavity of the crucible heating furnace 10, and then enters the crucible heating furnace 10. After the inner cavity is decelerated, the movement speed of the copper block is reduced, and the degree of collision between the subsequent copper block and the graphite crucible is reduced. Secondly, the crucible in the crucible heating furnace 10 can also use its graphite crucible. Or crucibles of other materials, graphite crucibles are mainly used in practical applications; third, the driving motor 10 is installed outside the housing 1 to avoid excessive temperature inside the housing 1 from affecting the work of the driving motor 10; fourth, the housing 1 and the sealing cover 13 are made of heat-insulating materials; fifth, the outlet at the bottom of the temporary storage barrel 81 is set with a narrow opening to avoid serious impact on the crucible due to the discharge of a large amount of copper blocks when it is not fully opened; sixth, this device is mainly used for A small copper water atomizer is used to produce large quantities of copper powder; 7. A silicon carbide airgel layer can be set on the outer surface of the temporary storage barrel 81 and the sliding plate 811, which has a good heat insulation effect and closes the insulation of the shell. The thermal effect is to avoid affecting the copper blocks on the chain plate conveyor belt 73 and the copper blocks installed inside the temporary storage barrel 81; eight, this device does not add other electrical equipment on the basis of the original position, and the electrical equipment is in Failures are prone to occur in high-temperature environments, so the use of purely mechanical mechanisms can effectively reduce the maintenance frequency of this device; 9. This temporary storage barrel adopts a narrow opening for discharging materials, which is conducive to the rapid and complete opening of the discharge port and also avoids the need for maintenance during the opening process. Due to too many discharge openings, too many copper blocks fall together and violently collide with the bottom of the graphite.

As a preferred implementation in this embodiment, as shown in FIG. 10 , the positioning unit includes two positioning gear rods 19 disposed in the inner cavity of the temporary storage bucket 81 and corresponding to the two slide plates 811 , and the positioning gears 19 The rod 19 slides through the limit plate 18 provided in the inner cavity of the temporary storage barrel 81. A stop ring 20 is fixed on the positioning gear rod 19 and above the limit plate 18. The upper end of the positioning gear rod 19 passes through the gear 17 and the L-shaped rod. 88 is provided with a toothed plate 16 at the lower end. A positioning head 21 with a right-angled triangle structure is fixed at the lower end of the positioning gear rod 19. A positioning groove 22 adapted to the positioning head 21 is provided at the upper end of the slide plate 811. When the temporary storage bucket 81 is empty , that is, the empty temporary storage bucket 81 in the initial state causes the upper end of the L-shaped rod 88 on it to conflict with the U-shaped mounting plate under the elastic force of the two return springs 84 (that is, the two return springs 84 are in a compressed state). The gear plate 16 and the positioning gear rod 19 are toothed through the gear 17. When the temporary storage bucket 81 moves downward due to the added copper block, the L-shaped rod 88 is released from compression and will move upward relative to the temporary storage bucket 81. At this time, the pull rope 813 has a certain margin, and will not drive the movement of the two sliding plates 811 that block the discharge port, but will cause the tooth plate 16 and the gear 17 to be separated from each other. At this time, the positioning gear rod 19 will pass through its own gravity. The action moves downward and makes the blocking ring 20 contact the limiting plate 18. At this time, the positioning head 21 partially moves to the bottom of the temporary storage bucket 81. When the pull rope 813 drives the two slide plates 811 to move backward, the positioning head 21 can be The toothed rod 19 pushes up and finally inserts the positioning head 20 into the positioning groove 22 to position the two sliding plates 811. When the temporary storage bucket 81 returns to its original position, the L-shaped rod 88 conflicts with the U-shaped mounting plate, and The downward movement relative to the temporary storage bucket 81 can cause the tooth plate 16 to contact the gear 17 and drive the positioning gear rod 19 to move upward through the action of the gear 17, releasing the plug-in connection with the slide plate 811. The two slide plates 811 are under the elastic force of the closing spring 812 Under the action, the discharge port is blocked.

As a preferred implementation in this embodiment, as shown in Figure 11, an automatic discharging unit 23 is also included for automatically and continuously discharging materials from the discharge port of the storage barrel 4 to prevent the accumulation of powder in the storage barrel 4. .

As a preferred implementation in this embodiment, as shown in Figure 11, the automatic discharging unit 23 includes a wide-mouth feeding part 232. The outer wall of the wide-mouth feeding part 232 is provided with a mounting part 231. The wide-mouth feeding part The lower end of the part 232 is mitered with a narrow-mouth blanking part 233. The mounting part 231, the narrow-mouth blanking part 233 and the wide-mouth feeding part 232 are all made of elastic materials. The blanking port at the bottom of the narrow-mouth blanking part 233 passes through The narrow-mouth blanking part 233 is sealed by its own elastic force.

Before vacuuming, water can be sprayed through the atomizing spray plate 5 so that there is a certain amount of coolant in the inner cavity of the wide-mouth feeding part 232 to form a second layer of sealing (the first layer of sealing relies on the narrow-mouth feeding part 233 Its own elastic force seals the unloading port), and the two-layer seal forms a good sealing effect, preventing external gas from entering the inside of the housing 1 during vacuuming, and the mixed liquid of copper powder and cooling water produced during water atomization processing. Accumulated in the wide-mouth feeding part 232, due to density, copper powder particles are deposited in the lower part of the mixed liquid. When the weight of the mixed liquid is too heavy, the feeding opening at the bottom of the narrow-mouth feeding part 233 will be squeezed by the copper powder particles. Press and open to automatically discharge materials, and only the overweight part will be discharged, and there will always be a certain amount of coolant in the inner cavity of the wide-mouth feeding part 232 to keep it sealed, so as to avoid the accumulation of materials inside the storage barrel 4, and realize the operation of the device Continuous operation.

It should be noted that: first, the automatic discharging unit 23 is installed in the discharging pipe of the temporary storage barrel 81; second, a fire-resistant silicone coating is provided on the outer surface of the elastic material (airgel or rubber can be used), so that Its heat-resistant temperature reaches over 1200°; third, the automatic discharging unit 23 can timely remove the inner cavity of the storage barrel 4, which is beneficial to the stability of the internal pressure of the storage barrel 4, and avoids excessive internal pressure, which may cause atomization of the spray plate 5 The water jet flow rate is too slow, which affects the molding quality of the copper powder.

A copper powder water atomization processing technology includes the following steps:

S1: After opening the first opening and closing plate 14, open the second opening and closing plate 711, and evenly discharge materials into the charging cavities of the multiple partition plate groups 72. The amount of material discharging in each charging cavity does not exceed the crucible heating furnace 10. The maximum discharge amount during one melting is when the upper and lower charging cavities of the chain plate conveyor belt 73 have discharged materials, the second opening and closing plate 711 is closed, and then the first opening and closing plate 14 is sealed and closed;

S2: Use the vacuum pump and vacuum pipe 2 to extract the gas inside the housing 1, the sealing cover 14 and the storage barrel 4, and then rush the protective gas into the housing 1, the sealing cover 14 and the storage barrel through the protective gas inlet pipe 3 Inside bucket 4:

S3, the PLC controller controls the drive motor 12 to drive the vacant crucible heating furnace 10 toward the vacant middle leakage bag 6 to perform the first rotation and dumping operation. After completion, the vacant crucible heating furnace 10 returns to its original position. During this process , the drive motor 12 will drive the chain plate conveyor belt 73 to move and feed the material into the automatic feeding unit 8. Each feeding is the amount accommodated by a charging chamber. When the crucible heating furnace 10 returns to its original position, the automatic feeding unit 8 automatically moves downward, causing its discharge port to move to the inside of the crucible heating furnace 10 for discharge. After the discharge is completed, the automatic feeding unit 8 automatically returns to its original position, and the crucible heating furnace 10 heats its crucible according to the set heating time. The number of heating times of the heating furnace 10 can be set according to the actual number of charging chambers. After the heating is completed, a second rotation and dumping operation is performed, and then the chain plate conveyor belt 73 and the automatic feeding unit 8 cooperate to perform an automatic feeding operation. , and so on repeatedly to realize the continuous automatic operation of the device;

S4: Before pouring the melt into the middle leaking bag 6 for the first time, open the cooling water pipe so that the cooling water can be sprayed out from the atomization spray plate 4 in advance, and the liquid dripping from the outlet of the middle leaking bag can be The copper liquid is dispersed and cooled, and the resulting mixture of copper powder and cooling liquid is automatically discharged through the automatic discharging unit 23 due to gravity.

As a preferred implementation in this embodiment, in step S2, before vacuuming, water can be sprayed through the atomizing spray disk 5 so that there is a certain amount of cooling liquid in the inner cavity of the wide-mouth feed part 232, forming a The second layer of sealing (the first layer of sealing relies on the elastic force of the narrow-mouth feeding part 233 to seal the feeding opening). The second layer of sealing forms a good sealing effect and prevents external gas from entering the inside of the housing 1 during vacuuming.

As a preferred implementation in this embodiment, in step S4, the cooling water is pure oxygen-free water, which can avoid the cooling water containing impurities or oxygen causing the copper powder formed to pollute or contain oxygen. Higher questions.

Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it is still The technical solutions described in the foregoing embodiments may be modified, or equivalent substitutions may be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in within the protection scope of the present invention.

Claims (8)

1. The utility model provides an automatic feed type copper powder water atomization processingequipment in batches, includes inside casing (1) that is provided with crucible heating furnace (10) and middle weeping package (6), the lower extreme of casing (1) is sealed to have storage vat (4), the weeping mouth of middle weeping package (6) is located the inner chamber of storage vat (4), the periphery of weeping mouth is provided with atomizing spray dish (5), evacuation tube (2) and shielding gas flushing pipe (3) with the valve are installed to the upper end of casing (1), still install in casing (1) be used for right the furnace liquid in crucible heating furnace (10) is emptyd and is poured into empty unit in middle weeping package (6), its characterized in that: and also comprises

A storage unit (7): for providing copper blocks required by the crucible heating furnace (10) during continuous heating smelting;

automatic feed supplement unit (8): copper blocks discharged by the storage unit (7) each time are automatically added into the empty crucible heating furnace (10) for smelting;

a transmission unit (15): in the process of pouring the crucible heating furnace (10) into the middle liquid leakage package (6) by utilizing the pouring unit, the kinetic energy provided by the pouring unit is transmitted to the storage unit (7), so that the storage unit (7) supplements the crucible in the automatic supplementing unit (8), and after the pouring is finished, the automatic supplementing unit (8) can be started to supplement the crucible heating furnace (10) which is empty;

the storage unit (7), the automatic feeding unit (8) and the transmission unit (15) are sealed and covered by the sealing cover (13), and the sealing cover (13) is communicated with the inner cavity of the shell (1).

2. An automatic batch charging type copper powder water atomization processing device according to claim 1, wherein: the pouring unit comprises a first rotating shaft (11) which is rotatably arranged in the inner cavity of the shell (1), one end of the first rotating shaft (11) is connected with an output shaft of a driving motor (12), and the crucible heating furnace (10) is fixedly arranged on the first rotating shaft (11);

the storage unit (7) comprises a mounting groove (71) which is arranged at the upper end of the shell (1) and is provided with an opening at the upper end and the left end, a chain plate type conveying belt (73) is arranged in an inner cavity of the mounting groove (71), a plurality of material separation plate groups (72) are arranged on a chain plate of the chain plate type conveying belt (73), a charging cavity is formed between each material separation plate group (72), a cover body (74) is fixed on a driving shaft of the chain plate type conveying belt (73), a first driven conical gear (75) is rotatably arranged in an inner cavity of the cover body (74) through a bearing (76), a mounting ring (77) is fixed on a shaft body of the first driven conical gear (75), a pressing spring (78) is arranged on the mounting ring (77), one end of the pressing spring (78) is connected with a pawl (79) which is rotatably arranged on the mounting ring (77), and a pawl (710) which is matched with the pawl (79) is fixed in the inner cavity of the cover body (74);

the automatic feeding unit (8) comprises two limiting columns (83) and two blocking columns (85) which are fixed at the upper end of the shell (1) and are oppositely arranged, the two limiting columns (83) and the two blocking columns (85) are respectively arranged on corresponding U-shaped mounting plates, reset springs (84) are respectively sleeved on the two limiting columns (83), a sliding rod (82) which is in sliding connection with the limiting columns (83) and is provided with a through hole (9) is arranged above the reset springs (84), the two sliding rods (82) are fixedly connected with temporary storage barrels (81), the lower ends of the temporary storage barrels (81) penetrate through the shell (1) and are located right above a crucible heating furnace (10), U-shaped rods are fixed on the side ends of the temporary storage barrels (81), support columns (810) are fixedly arranged at the outer ends of the U-shaped rods, second conical gears (87) are respectively arranged at the two ends of a shaft body which is arranged in a rotating mode on the left side of the support columns (810), the two sliding rods are respectively connected with driven gears (86) and are arranged at the two ends of the shaft bodies which are in a sliding mode, the two ends of the shaft bodies which are in a rotating mode, the two driven gears (87) are respectively arranged on the outer ends of the supporting columns, the two end of the U-shaped rods are fixedly arranged on the side of the corresponding U-shaped rods, the supporting rods, the U-shaped rods, the two end rods are respectively, the two end shafts which are fixedly arranged on the U-shaped rods, and the supporting rods, and the left sides, and the two end, and the two ends, and the two shafts which are respectively. The two sliding plates (811) are fixedly connected with the lower end of an L-shaped rod (88) which is movably arranged in the inner cavity of the temporary storage barrel (81) through a pull rope (813) penetrating through the axis of the corresponding closed spring (812), and the lower end of the L-shaped rod (88) is connected with an extension spring (814) arranged in the inner cavity of the temporary storage barrel (81);

the transmission unit (15) is provided with three groups, the transmission unit (15) comprises a second rotating shaft which is rotatably arranged, transmission bevel gears are arranged at two ends of the second rotating shaft, the lower parts of the two groups of transmission units (15) are respectively in meshed connection with two driving bevel gears fixedly sleeved on the first rotating shaft, the upper ends of the two transmission units (15) are respectively in meshed connection with a second driven bevel gear (87) and one end of the last group of transmission units (15), and the other end of the last group of transmission units (15) is in meshed connection with the first driven bevel gear (75);

a first opening plate (14) with a sealing locking piece is arranged on the sealing cover (13), a second opening plate (711) is arranged on the side wall of the mounting groove (71) and used for exposing the material separation plate group (72) below the chain plate type conveying belt (73) in the sight, and one end of the upper end of the mounting groove (71) is spaced from the top of the inner cavity of the sealing cover (13) by a distance which is used for discharging the material in the charging cavity between the material separation plate groups (72) above;

the automatic copper material discharging device is characterized by further comprising a positioning unit, wherein the positioning unit is used for positioning the two sliding plates (811) in a fully opened state, and when copper materials in the temporary storage barrel (81) are completely discharged into the crucible heating furnace (10) and the temporary storage barrel (81) is restored to the original position, the two sliding plates (811) automatically do relative movement to seal a discharge hole.

3. An automatic batch charging type copper powder water atomization processing device according to claim 2, wherein: the positioning unit comprises two positioning toothed bars (19) which are arranged in an inner cavity of the temporary storage barrel (81) and correspond to the two sliding plates (811), the positioning toothed bars (19) penetrate through a limiting plate (18) arranged in the inner cavity of the temporary storage barrel (81) in a sliding mode, a baffle ring (20) is fixed above the limiting plate (18) on the positioning toothed bars (19), the upper ends of the positioning toothed bars (19) are in toothed connection with toothed plates (16) arranged at the lower ends of the L-shaped rods (88) through gears (17), positioning heads (21) of right-angle triangle structures are fixed at the lower ends of the positioning toothed bars (19), and positioning grooves (22) matched with the positioning heads (21) are formed in the upper ends of the sliding plates (811).

4. An automatic batch charging type copper powder water atomization processing device according to claim 1 or 2, wherein: the automatic discharging device also comprises an automatic discharging unit (23) which is used for automatically and continuously discharging the material from the discharging port of the material storage barrel (4) and preventing powder from being accumulated in the material storage barrel (4).

5. An automatic batch charging type copper powder water atomization processing device according to claim 4, wherein: the automatic discharging unit (23) comprises a wide-mouth feeding part (232), an installation part (231) is arranged on the outer wall of the wide-mouth feeding part (232), a narrow-mouth discharging part (233) is obliquely connected to the lower end of the wide-mouth feeding part (232), the narrow-mouth discharging part (233) and the wide-mouth feeding part (232) are made of elastic materials, and a discharging hole at the bottom of the narrow-mouth discharging part (233) is sealed through the elastic action of the narrow-mouth discharging part (233) itself.

6. A copper powder water atomization processing technology is characterized in that: the method comprises the following steps:

s1: after the first opening plates (14) are opened, the second opening plates (711) are opened, the charging cavities of the material separation plate groups (72) are uniformly discharged, the discharging amount of each charging cavity does not exceed the maximum discharging amount when the crucible heating furnace (10) is used for smelting once, when the charging cavities above and below the chain plate type conveying belt (73) are completely discharged, the second opening plates (711) are closed, and the first opening plates (14) are closed in a sealing mode;

s2: the vacuum pump and the vacuumizing tube (2) are used for installing the shell (1), the sealing cover (14) and the gas inside the storage barrel (4) to be pumped out, and then the protective gas is flushed into the shell (1), the sealing cover (14) and the storage barrel (4) through the protective gas flushing tube (3):

s3, controlling a driving motor (12) to drive an empty crucible heating furnace (10) to perform a first rotation dumping operation towards an empty middle liquid leakage package (6), and after the crucible heating furnace (10) is completed, recovering the original position, in the process, driving a chain plate type conveying belt (73) to move and feed materials towards an automatic feeding unit (8), wherein each time of feeding the materials is the amount contained in a charging cavity, after the crucible heating furnace (10) is recovered to the original position, the automatic feeding unit (8) automatically moves downwards, a discharge hole of the automatic feeding unit (8) automatically recovers the original position, the crucible heating furnace (10) heats according to the set heating time (the heating times of the crucible heating furnace (10) can be set according to the number of charging cavities of actual charging), and after the heating is completed, the chain plate type conveying belt (73) and the automatic feeding unit (8) are matched to perform automatic dumping operation, so that continuous operation of the continuous dumping device is automatically and repeatedly realized;

s4: before the molten liquid is poured into the middle liquid leakage package (6) for the first time, a cooling water pipeline is opened, so that cooling water is sprayed out of the atomizing spray disc (4) in advance, copper liquid dropped from a liquid outlet of the middle liquid leakage package can be scattered and cooled, and formed mixed liquid of copper powder and the cooling liquid is automatically discharged through the automatic discharging unit (23) under the action of gravity.

7. A copper powder water atomization process according to claim 6, wherein: in step S2, before vacuumizing, a certain amount of cooling liquid can be sprayed into the inner cavity of the wide-mouth feeding part (232) through the atomizing spray disc (5).

8. A copper powder water atomization process according to claim 6, wherein: in step S4, the cooling water is pure oxygen-free water.