CN110817436A - Material conveying optimization equipment based on pipeline hydraulic conveying technology - Google Patents

Abstract

The invention discloses a material conveying optimization equipment based on pipeline hydraulic conveying technology. The equipment comprises a pipeline car shell, and the inside of the pipeline car shell is sequentially provided with a motor, a material container, a container fixing device and a back cover from the top to the tail. A rolling shaft is also arranged between the motor and the rear cover and at the position of the central axis; a deflector is also arranged outside the casing of the pipeline truck and near the rear cover; and a shock absorbing support body is also arranged on the rear cover. The invention has the advantages of high concealment, low point-to-point transportation cost, little influence by surface weather conditions, easy information management and automatic control, and the like.

Description

A material conveying optimization equipment based on pipeline hydraulic conveying technology

technical field

The invention relates to the technical field of material conveying, in particular to a material conveying optimization equipment based on pipeline hydraulic conveying technology.

Background technique

Pipeline transportation is a way of transporting goods using pipelines as a means of transport. It has a wide range of applications, such as the transportation of materials during the construction of dams and roadbeds; dredging projects in ports, rivers, and lakes; transportation of finished products and wastes in the metallurgical and mining industries; The transportation of mines, waste water and waste; and the transportation of raw materials, intermediate products and finished products in agriculture, chemical industry, building materials and other sectors are widely used in pipeline transportation.

Pipeline hydraulic transportation is a branch of pipeline transportation. It uses the water pressure in the pipeline to push the materials in the pipeline to the destination. Compared with the traditional transportation methods such as road, railway, air transportation and water transportation, it mainly has the advantages of large transportation volume, small footprint, The construction period is short, it can be put into operation quickly, the construction cost is low, the transportation efficiency is high, and the transportation is safe and reliable. At the same time, combined with digital control, information management and automatic control can be realized. However, the traditional pipeline hydraulic conveying has also found some defects in practical applications, mainly including: high water consumption; certain technological problems in the conveying power device, and ordinary centrifugal pumps are often difficult to meet the requirements; there are pulping before conveying and before use. The dehydration process is expensive; once the system fails, the bulk material will settle and harden in the pipeline, and it cannot be restarted, making it difficult to repair the entire pipeline; the resistance of the bulk material is still large, so the power consumption is large; the pipeline is corroded It is not suitable for the transportation of materials that will deteriorate in contact with the conveying liquid; the particle size of the conveyed material is limited to a certain extent, and it can only be used to convey a single material.

Aiming at the many problems existing in the practical application of traditional pipeline hydraulic transportation and the positive significance of developing pipeline hydraulic transportation, a new type of solid-liquid separation pipeline hydraulic transportation technology is proposed, which uses pipeline truck as material carrier and water as transportation A new type of pipeline hydraulic conveying technology for medium. The material carrier pipeline truck is mainly composed of a barrel and a support body. The barrel is a container for materials and has good sealing performance. The physical and chemical reaction and the friction between the material and the pipeline can well meet the transportation needs of different types and forms of pure materials. At the same time, three supports are installed at both ends of the barrel, and the three supports at one end are at an angle of 120°, which makes the pipeline truck basically keep concentric with the pipeline during the movement process, and the running stability is significantly improved. Because the contact surface between the pipeline truck and the pipeline is only the top end of the support body, the friction area between the pipeline truck and the pipeline wall is significantly reduced, which prolongs the service life of the transportation pipeline.

It can be seen that the new solid-liquid separation pipeline hydraulic conveying technology further expands the range of materials to be conveyed during the pipeline hydraulic conveying process, and also increases the stability of the materials during transportation. Therefore, the new solid-liquid separation pipeline hydraulic conveying technology has the advantages of Great research value and development application potential.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a material conveying optimization equipment based on pipeline hydraulic conveying technology to make up for the deficiencies of the prior art.

The present invention proposes a solid-liquid separation type pipeline hydraulic conveying technology with a pipeline vehicle as a transportation carrier and water as a transportation medium after analyzing the deficiencies of the existing pipeline hydraulic transportation technology. After analyzing the structure of the pipeline vehicle, Further optimization and innovation of pipeline truck structure in pipeline truck power, pipeline truck transportation stability and material stability.

In terms of power, the movement of the pipeline truck in the pipeline is powered by the pressure difference between the front and rear of the pipeline truck to achieve the effect of transportation. Its movement principle is similar to the movement of the bullet in the barrel. The bullet is propelled forward by the air pressure generated by the explosion of gunpowder, and the existence of the reciprocating line causes the bullet to rotate, thereby improving the stability of the bullet in flight after shooting. Therefore, in the start-up stage and migration stage of the pipeline truck, in order to enable the pipeline truck to obtain more kinetic energy from the water flow, the structure of the rear end of the pipeline truck should be more conducive to receiving the kinetic energy provided by the water flow, and at the same time, the front end structure of the pipeline truck should be affected by the water flow. Smaller water flow resistance, so that the pressure difference between the front and rear sections of the pipeline truck can be maximized, so as to better utilize the water flow energy and increase the stability of its movement.

In terms of stability, there are three main factors to consider:

1. By optimizing the structure of the front end of the pipeline truck to reduce the vibration of the front end of the pipeline truck affected by the water flow;

2. Rotate the pipeline truck to make the pipeline truck rotate to improve the stability, or change the general turbulent pipeline flow into a spiral pipeline flow by changing the flow state of the water, thereby increasing the carrying capacity of the water flow, thereby increasing the transport capacity of the pipeline truck. shift stability;

3. Since the supporting body of the pipeline truck is a rigid body, although it ensures that the axis of the pipeline truck always coincides with the axis of the pipeline during the transportation process, the supporting body and the pipe wall are in rigid contact, which will cause wear on the pipeline on the one hand, and wear on the other hand. On the one hand, the material will generate a certain momentum in the radial and circumferential directions due to the inertial effect, which will affect the stability of the pipeline truck.

Due to the special structure of the pipeline truck, the range of materials that the pipeline truck can carry is significantly expanded compared with the traditional pipeline hydraulic transportation. However, due to the structure of the barrel, the material will move with the movement of the barrel during the movement process. It is beneficial to the stable operation of the material, and the material is easily mixed during the operation. Therefore, the material container needs to be designed, and the structure of material loading and unloading should be designed on this basis.

In order to achieve the above-mentioned purpose, in conjunction with the above-mentioned principles, the present invention provides the following technical solutions:

A material conveying optimization equipment based on pipeline hydraulic conveying, the equipment comprises a pipeline car shell, and a motor, a material container, a container fixing device and a rear cover are sequentially arranged inside the pipeline car shell from the top to the rear. The motor and the rear cover A rolling shaft is also arranged between and at the center position; a deflector is also arranged outside the casing of the pipeline truck and near the rear cover; and a shock absorbing support body is also arranged on the rear cover.

Further, the pipeline truck adopts a double-layer structure as a whole, and the pipeline truck shell adopts a streamlined design; the interior is a material container, which is used to hold materials of various properties (solid, liquid, gas). The cover is used for loading and unloading; the rolling shaft is used to support the container during transportation and provide axial displacement for the material container through rotation, so as to realize the loading and unloading of the container.

Further, the casing of the pipeline truck includes a bullet-shaped top end and a body, and the overall design is streamlined, which reduces the pressure of the water flow at the front end of the pipeline truck on the pipeline truck, effectively reduces the energy consumption during transportation, and the water flow at this time is relatively low. The smooth flow through the surface of the car body reduces the vortex generated by the side wall of the pipe, thereby improving the stability of the entire car body. And the inner groove at the top of the casing of the pipeline car is used to install the electric motor.

Further, the shock-absorbing support bodies are arranged on the outer wall of the pipeline truck, and are distributed in the front section and the rear end of the pipeline truck. There are 6 in total, and each 3 is in a group and the angle between the two is 120°, so that the pipeline truck is in operation. The central axis of the pipeline truck coincides with the central axis of the pipeline, which increases the stability of the pipeline truck when it moves. The design principle of the shock-absorbing support base is the same as that of the casing of the pipeline truck. The front-end streamlined design is adopted to reduce the resistance of the water. The top shock-absorbing device is composed of a universal ball bearing, a connecting device between the bearing and the spring, a shock-absorbing spring and a bottom cylinder. The universal ball can make the friction generated by the displacement of the support body relative to the pipe wall in any direction into rolling friction, thereby reducing the wear of the inner wall of the pipe. The shock absorbing device can alleviate the uneven force on the pipeline car if the inner wall of the pipeline is not smooth (such as a slight bulge) or in the bending section during the moving process, thereby increasing its stability.

Further, the guide fins are installed at the end of the guide bar shell, and are arranged staggered with the shock-absorbing supports, a total of 3 pieces, and the included angle between each two is 120°. Reduce frictional resistance with conveying medium. According to research, in the starting stage of the pipeline truck, the relative velocity between the pipeline truck and the water flow is relatively large. At this time, the pressure exerted by the water flow on the diversion strip is relatively large. . At this time, two effects are achieved. First, due to the existence of the guide vane, the area of the pipeline vehicle in contact with the water flow in the axial direction increases, which can further obtain kinetic energy from the water flow, thereby shortening the starting time of the pipeline vehicle; second, the flow guide The sheet makes the pipeline car rotate, thereby increasing the stability of the pipeline car in the starting phase. When the relative speed between the pipeline truck and the water flow is small, the pressure of the guide vane is reduced by the water flow, and the water pressure at this time is not enough to make the pipeline truck rotate, but the guide vane still has a guiding effect on the water flow. The water flow formed by the outer casing of the pipe car and the inner wall of the pipe is transformed into a spiral flow with an annular gap, so that the water flow velocity is distributed in a logarithmic-like manner in the radial direction, thereby increasing the carrying capacity of the water flow.

Further, the rear cover is the entrance and exit of the material container, and the shock-absorbing support body is arranged outside, and supports the pipeline truck together with the support body on the outer shell of the pipeline truck, so that the central axis of the pipeline truck and the central axis of the pipeline are coincident during the transportation process. . The bottom of the back cover is flat, which can withstand the water pressure to the maximum extent and convert the pressure into the power of the pipe truck movement.

Further, the design of the material container makes maximum use of the space in the casing of the pipeline truck, and the inner space of the container can be loaded with materials as a whole, and compartments can also be arranged for classified placement. The material container is designed as a non-homogeneous material or the counterweight is added on one side of the container, so that the center of gravity of the container is always below the axis of the pipeline truck during transportation, so that the principle of the tumbler can be used to keep the container moving with the pipeline truck. relatively stable state. The main purpose of the cylindrical rod in the middle of the container is to provide space for the rolling shaft, and to achieve linkage with the rolling shaft, and combined with the principle of the tumbler, to realize the front and rear displacement of the material container along the central axis direction, and achieve the purpose of loading and unloading the material container.

Further, the main functions of the rolling shaft are two, one is to provide support for the material container during the movement of the pipeline truck, and the other is to realize the loading and unloading of the material container through the rotation of the motor; The bearing is connected with the back cover, and the front end is fixed with the material container. Since the material container cannot be displaced in the axial direction at this time, the rolling shaft cannot rotate freely due to the restriction of the material container. At this time, the container fixing device, the material container and the rolling shaft are integrated, and the motor bearing is connected to the front, and the fixing device and the rear cover bearing are connected to the rear, so that the movement of the material container in the circumferential direction is not affected by the casing of the pipeline truck, and because the material container is The center of gravity is lower, so as to achieve a relatively stable effect.

Advantages and technical effects of the present invention:

The innovation of the present invention is as follows:

1. The material conveying equipment designed this time omits the procedure of preprocessing the properties of the materials before the material is transported, and realizes the effect of pipeline transportation without being affected by the properties of the materials;

2. The stability of the pipeline truck during operation is increased by the setting of the shock-absorbing support body and the guide vane;

3. Through the connection of the material container with counterweight, the rolling shaft and the container fixing device, the stability of the material conveying is increased;

4. The rolling shaft is driven to rotate by the motor, so that the material container can complete the axial movement, realizing the loading and unloading of materials;

5. The pipeline truck realizes the separation and transportation of materials and transportation medium, and expands the scope of conveying materials.

The invention is a new type of pipeline hydraulic conveying technology, which uses a pipeline vehicle as a material transport carrier and water as a conveying medium, and relies on a pressurized water flow in the pipeline to push the pipeline vehicle to move in the direction of the water flow, so as to realize point-to-point long-distance transportation of materials. The technology has the advantages of high concealment, low point-to-point transportation cost, little influence by surface climatic conditions, easy information management and automatic control. At the same time, it also eliminates the defects of traditional pipeline hydraulic transportation to a certain extent, such as the limitation of chemical properties of materials, poor stability during transportation, and large abrasion of materials on the inner wall of the pipeline, etc., and increases the stability of materials during transportation. Therefore, the equipment has good application prospects and research value in point-to-point long-distance material transportation and high concealment requirements such as military material transportation.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention.

FIG. 2 is a schematic structural diagram of the casing of the pipeline car in the present invention.

FIG. 3 is a schematic structural diagram of a shock absorbing support body in the present invention.

FIG. 4 is a schematic view of the structure of the guide vane in the present invention.

FIG. 5 is a schematic structural diagram of the rear cover in the present invention.

6 is a schematic structural diagram of a material container in the present invention.

FIG. 7 is a schematic structural diagram of the rolling shaft and the container fixing device in the present invention.

Among them, 1-motor, 2-pipe car shell, 3-shock absorber support, 4-pressurized pipeline, 5-back cover, 6-container fixing device, 7-guide vane, 8-rolling shaft, 9-material container.

Detailed ways

In order to enable those skilled in the art to further understand the features and technical content of the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments:

Example:

A material conveying optimization equipment based on pipeline hydraulic conveying technology, as shown in Figure 1, the equipment includes a pipeline car shell 2, and the inside of the pipeline car shell 2 is sequentially provided with a motor 1, a material container 9, and a container fixing device from the top to the tail 6 and the rear cover 5, between the motor 1 and the rear cover 5, there is also a rolling shaft 8 in the center position; the outside of the pipe car shell 2, near the rear cover 5 is also provided with a guide plate 7; The rear cover 5 is also provided with a shock absorbing support body 3 .

As shown in Figure 2, the pipeline truck adopts a double-layer structure as a whole, and the pipeline truck shell 2 adopts a streamlined design; the interior is a material container 9 for holding materials of various properties (solid, liquid, gas), and the material container 9. Loading and unloading are carried out by the opened rear cover 5; the rolling shaft 8 is used to support the container during the moving process and realize the loading and unloading of the container through rotation.

The pipeline truck shell 2 includes a bullet-shaped top end and a body, and the overall design is streamlined, which reduces the pressure of the water flow at the front end of the pipeline truck on the pipeline truck, effectively reduces the energy consumption during transportation, and the water flow at this time is relatively smooth. Flowing through the surface of the car body reduces the vortex generated by the side wall of the pipe car, thereby improving the stability of the entire car body. And the inner groove at the top of the casing 2 of the pipeline car is used to install the electric motor.

As shown in FIG. 3 , the shock-absorbing supports 3 are arranged on the outer wall of the pipeline truck, and are distributed in the front section and the rear end of the truck. There are 6 in total. During operation, the central axis of the pipeline truck coincides with the central axis of the pipeline, which increases the stability of the pipeline truck when it moves. The design principle of the base of the shock-absorbing support body 3 is the same as that of the pipe car shell 2. The front-end streamlined design is adopted to reduce the resistance of the water. The top shock-absorbing device is composed of a universal ball bearing, a connecting device between the bearing and the spring, a shock-absorbing spring and a bottom cylinder. The universal ball can make the friction generated by the displacement of the support body relative to the pipe wall in any direction into rolling friction, thereby reducing the wear of the inner wall of the pipe. The shock absorbing device can alleviate the uneven force on the pipeline car if the inner wall of the pipeline is not smooth (such as a slight bulge) or in the bending section during the moving process, thereby increasing its stability.

As shown in FIG. 4 , the guide vanes 7 are installed at the end of the guide bar shell, and are arranged in a staggered manner with the shock-absorbing supports 3. There are three in total, and the included angle between the two is 120°. To enhance the guide effect, they are arranged as twisted surfaces. Both ends are streamlined to reduce the frictional resistance with the conveying medium. According to research, in the starting stage of the pipeline truck, the relative velocity between the pipeline truck and the water flow is relatively large. At this time, the pressure exerted by the water flow on the diversion strip is relatively large. . At this time, two effects are achieved. First, due to the existence of the guide vane, the area of the pipeline vehicle in contact with the water flow in the axial direction increases, which can further obtain kinetic energy from the water flow, thereby shortening the starting time of the pipeline vehicle; second, the flow guide The sheet makes the pipeline car rotate, thereby increasing the stability of the pipeline car in the starting phase. When the relative speed between the pipeline truck and the water flow is small, the pressure of the guide vane is reduced by the water flow, and the water pressure at this time is not enough to make the pipeline truck rotate, but the guide vane still has a guiding effect on the water flow. The water flow formed by the outer casing of the pipe car and the inner wall of the pipe is transformed into a spiral flow with an annular gap, so that the water flow velocity is distributed in a logarithmic-like manner in the radial direction, thereby increasing the carrying capacity of the water flow.

As shown in FIG. 5 , the rear cover 5 is the entrance and exit of the material container, and the shock-absorbing support body 3 is arranged outside, and supports the pipeline truck together with the support body on the casing 2 of the pipeline truck, so that the pipeline truck can be moved during the transportation process. The axis coincides with the central axis of the pipe. The bottom of the back cover 5 is flat, which can withstand the water pressure to the maximum extent and convert the pressure into the power for the movement of the pipeline truck.

As shown in FIG. 6 , the design of the material container 9 maximizes the use of the space in the casing 2 of the pipeline truck, and the interior space of the container can be used for overall loading of materials, and compartments can also be arranged for classified placement. The material container 9 is designed as a non-homogeneous material or a counterweight is added on one side of the container, so that the center of gravity of the container is always below the axis of the pipeline truck during transportation, so that the principle of the tumbler can be used to keep the container moving with the pipeline truck. a relatively stable state. The main purpose of the cylindrical rod in the middle of the container is to provide space for the rolling shaft 8, and to achieve linkage with the rolling shaft 8, and combined with the tumbler principle, realize the front and rear displacement of the material container along the central axis direction, and achieve the purpose of loading and unloading the material container.

As shown in FIG. 7 , the rolling shaft 8 has two main functions, one is to provide support for the material container 9 during the movement of the pipeline truck, and the other is to drive the rotation of the motor to realize the loading and unloading of the material container; the container The rear end of the fixing device 6 is connected to the rear cover 5 through a bearing, and the front end is fixed to the material container. Since the material container cannot be displaced in the axial direction at this time, the rolling shaft is restricted by the material container 9 and cannot rotate freely. At this time, the container fixing device, the material container and the rolling shaft are integrated, and the motor bearing is connected to the front, and the fixing device and the rear cover bearing are connected to the rear, so that the movement of the material container in the circumferential direction is not affected by the casing of the pipeline truck, and because the material container is The center of gravity is lower, so as to achieve a relatively stable effect.

The above-mentioned embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.

Claims (8)

1. The material conveying optimization equipment based on the pipeline hydraulic conveying technology is characterized by comprising a pipeline vehicle shell (2), wherein a motor (1), a material container (9), a container fixing device (6) and a rear cover (5) are sequentially arranged in the pipeline vehicle shell (2) from the top to the tail, and a rolling shaft (8) is further arranged between the motor (1) and the rear cover (5) and at the position of a central axis; a flow deflector (7) is arranged outside the shell (2) of the pipeline vehicle and close to the rear cover (5); and the rear cover (5) is also provided with a damping support body (3).

2. The material conveying optimization device as claimed in claim 1, wherein the pipeline wagon is of a double-layer structure, the pipeline wagon shell (2) is provided with a bullet-shaped top end and a wagon body, and the pipeline wagon shell is of a streamline design; a material container (9) is arranged in the pipeline trolley shell (2) and used for containing materials, and a groove in the top end of the pipeline trolley shell (2) is used for accommodating the motor (1); the material container (9) is loaded and unloaded by the opened rear cover (5); the rolling shaft (8) is used for supporting the container in the moving process and realizing the loading and unloading of the container through rotation.

3. The material conveying optimization device as claimed in claim 1, wherein the shock-absorbing support bodies (3) are arranged on the outer wall of the pipeline trolley, are distributed on the front section and the tail end of the pipeline trolley, are 6 in number, are in a group, and form an included angle of 120 degrees between every two 3, so that the central axis of the pipeline trolley coincides with the central axis of the pipeline in the operation process of the pipeline trolley, and the stability of the pipeline trolley during transportation is improved.

4. The material conveying optimization equipment as set forth in claim 1, characterized in that the shock-absorbing supporting body (3) adopts a front-end streamline design to reduce the water resistance, and the top-end shock-absorbing device is composed of a ball-and-socket bearing, a connecting device of the bearing and the spring, a shock-absorbing spring and a bottom barrel; the universal ball can make the friction generated by the displacement of the support body relative to the pipe wall in any direction be rolling friction, thereby reducing the abrasion of the inner wall of the pipe.

5. The material conveying optimization equipment as claimed in claim 1, wherein the flow deflectors (7) are installed at the tail end of the shell (2) of the pipeline trolley, are arranged in a staggered mode with the shock absorption supporting bodies (3), form an included angle of 120 degrees in pairs, are arranged to be twisted surfaces for enhancing the flow guide effect, and are streamlined at two ends so as to reduce the friction resistance with a conveying medium.

6. The material conveying optimization device as claimed in claim 1, wherein the rear cover (5) is an inlet and outlet of a material container, a shock absorption support body (3) is arranged outside the rear cover and supports the pipeline trolley together with a support body on the shell (2) of the pipeline trolley, so that the central axis of the pipeline trolley coincides with the central axis of the pipeline in the process of transportation; the bottom of the rear cover (5) is a plane, and can bear water pressure to the maximum extent and convert the pressure into power for the movement of the pipeline vehicle.

7. The material conveying optimization equipment is characterized in that the material container (9) utilizes the space in the shell (2) of the pipeline trolley to the maximum extent, the inner space of the container can be integrally loaded with materials and is suitable for materials with various properties, and compartments can be arranged for classified placement of materials with different properties; the material container (9) is designed to be a non-homogeneous material or a balance weight is additionally arranged on one side of the container, so that the gravity center of the container is always below the central axis of the pipeline vehicle during the transportation, and the container is always kept in a relatively stable state when moving along with the pipeline vehicle by utilizing the principle of a tumbler.

8. The material conveying optimization device as claimed in claim 1, characterized in that the rolling shaft (8) provides support for the material container (9) during the movement of the pipeline trolley and realizes the loading and unloading of the material container by the rotation of the material container driven by a motor; the tail end of the container fixing device (6) is connected with the rear cover (5) through a bearing, the front end of the container fixing device is fixed with the material container, and the rolling shaft cannot rotate freely under the limitation of the material container (9) because the material container cannot move in the axial direction at this time.

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