CN114832727A - Waste acid treatment system for lithium battery material treatment - Google Patents

Abstract

The invention relates to the technical field of waste acid treatment in the lithium battery material industry, in particular to a waste acid treatment system for the treatment of lithium battery materials, comprising: a reactor; an input end of the reactor is connected with an automatic dosing device through a pipeline; The first end is connected to the input end of the vacuum filter through a pipeline, and the output end of the vacuum filter is connected to the input end of the vacuum collecting tank through a pipeline; a vacuum unit; the beneficial effects are: the waste acid treatment system for lithium battery material processing proposed by the present invention passes through The dosing reaction is used to first collect and concentrate, then recover the acid and then recover the metal salt, so that the concentration of the regenerated acid can be effectively increased, thereby improving the utilization value of the recovered acid. The purpose of recovering metal salts is achieved, thereby achieving the purpose of recycling waste acid, recovering high acid concentration and high utilization value; and the dosing device realizes the screening of agglomerated materials and avoids the input of agglomerated materials.

Description

A waste acid treatment system for lithium battery material treatment

technical field

The invention relates to the technical field of waste acid treatment in the lithium battery material industry, in particular to a waste acid treatment system for lithium battery material treatment.

Background technique

Existing waste acid treatment systems for the treatment of lithium battery materials generally adopt neutralization, resin adsorption, and roasting.

However, the lime neutralization method + biological denitrification method has a simple process, but the consumption of lime is very large, and a large amount of hazardous waste sludge will be generated, which requires secondary disposal, and the treatment cost is high. The resin adsorption recovery method + neutralization treatment + biological method can Part of the free acid is recovered, but the recovered acid contains metal salts, and the separation rate is unstable. The compound acid still needs to be neutralized. The spray roasting method recovers metals and acids, but the investment cost is very high.

In addition, when the waste acid is treated, the powdered treatment agent put in is easy to agglomerate, and the agglomerated treatment agent affects the use effect.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a waste acid treatment system for lithium battery material treatment, so as to solve the problems raised in the above-mentioned background art.

In order to achieve the above purpose, the present invention provides the following technical solutions: a waste acid treatment system for lithium battery material treatment, the waste acid treatment system for lithium battery material treatment includes:

Reactor, the input end of the reactor is connected with an automatic dosing device through a pipeline, the output end of the reactor is connected with the input end of the vacuum filter through a pipeline, and the output end of the vacuum filter is connected through a pipeline to the input end of the vacuum collecting tank ;

Vacuum unit, the input end of the vacuum unit is connected to the output end of the vacuum buffer tank through a pipeline, the input end of the vacuum buffer tank is connected to the output end of the vacuum collection tank through a pipeline, and the input end of the reactor is connected to the feed pump through a pipeline, and the feed pump The input end of the waste acid tank is connected by a pipe to the output end of the spent acid tank; and

Tail gas recovery device, the input end of the exhaust gas recovery device is connected to the exhaust port of the reactor through a pipeline, the output end of the exhaust gas recovery device is connected to the exhaust gas recovery liquid irrigation through a pipeline, and the output end of the reactor is connected to the input end of the regeneration acid tank through a pipeline. .

Preferably, the inner wall of the automatic dosing device is provided with two sets of overlapping racks, the overlapping racks have a ring-shaped plate structure, a bumping rack is overlaid on the overlapping rack, and the inner ring port of the bumping rack is provided with a screen plate , A drive motor is installed on the outer wall of the automatic dosing device, and the shaft body of the driving motor penetrates the automatic dosing device and the side plate of the overlapping frame and is connected to the surface of the push handle, and the push handle is located in the inner ring of the overlapping frame. And a screw feeder is installed on the side plate of the reactor.

Preferably, the top surface of the bottom plate of the automatic dosing device is inclined downward from the edge to the center, the inner ring surface of the overlapping frame is provided with a limiting groove, the interior of the limiting groove is rotatably connected to a limiting shaft, and the limiting shaft is fixed on the top The surface of the push handle.

Preferably, the top surface of the jolt frame is provided with a plurality of metal shrapnel, one end of the metal shrapnel is fixed on the inner wall of the reactor, there are multiple metal shrapnel, and the plurality of metal shrapnel are arranged and distributed along the edge of the top surface of the jolt frame .

Preferably, a rubber material blocking cover is provided on the top surface of the inner ring mouth of the jigger, the rubber material blocking cover has an inverted table-shaped frame structure, and the top end of the rubber material blocking cover is fixed on the inner wall of the reactor.

Preferably, the bottom surface of the jolt frame is provided with a material guide frame, and the material guide frame has an inverted table-shaped frame structure.

Preferably, the push handle has an elliptical ball structure, and the distance between the two ends of the push handle is smaller than the length of the long side of the inner ring opening of the overlapping frame.

Preferably, a feeding port is provided on the top plate of the automatic dosing device, the feeding port is centered on the top plate of the automatic dosing device, and a cover is screwed on the top of the feeding port.

Preferably, a traction handle is inserted into the top plate of the automatic dosing device, the traction handle is in the shape of a "U"-shaped rod, the bottom end of the traction handle is fixed on the top surface of the pressing plate, and the pressing plate is on the top plate of the automatic dosing device. below.

Preferably, the top surface of the automatic dosing device is provided with a connecting plate, the surface of the connecting plate is screwed with a locking screw, one end of the locking screw is screwed in a screw groove, and the screw groove is opened on the surface of the traction handle.

Compared with the prior art, the beneficial effects of the present invention are:

The waste acid treatment system for the treatment of lithium battery materials proposed by the present invention can effectively increase the concentration of regenerated acid and further improve the utilization value of the recovered acid by adopting the dosing reaction to first collect and concentrate the acid, then recover the acid and then recover the metal salt. reaction, thereby achieving the purpose of increasing the concentration of recovered acid, and then achieving the purpose of recovering metal salts, thereby achieving the purpose of recycling waste acid, recovering high acid concentration and high utilization value; Screening to avoid the input of agglomerated materials.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the structural representation of the present invention;

Fig. 3 is the enlarged schematic diagram of the structure at place A in Fig. 2;

Fig. 4 is the enlarged schematic diagram of the structure at B in Fig. 2;

FIG. 5 is a schematic diagram of the connection structure between the lap frame and the push handle according to the present invention.

In the figure: reactor 1, automatic dosing device 2, vacuum filter 3, exhaust gas recovery device 4, exhaust gas recovery liquid tank 5, vacuum collection tank 6, vacuum buffer tank 7, vacuum unit 8, feed pump 9, waste acid Tank 10, Regenerating Acid Tank 11, Lap Frame 12, Bumper Frame 13, Screen Plate 14, Metal Shrapnel 15, Rubber Blocking Cover 16, Material Guide Frame 17, Drive Motor 18, Push Handle 19, Sealed Bearing 20, Limiting shaft 21 , limiting groove 22 , screw feeder 23 , feeding port 24 , traction handle 25 , pressing plate 26 , connecting plate 27 , locking screw 28 , and screwing groove 29 .

Detailed ways

In order to clearly and completely describe the purpose and technical solutions of the present invention, and to make the advantages more clear, the following describes the embodiments of the present invention in further detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are a part of the embodiments of the present invention, rather than all the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained under the premise of creative work shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", " The orientation or positional relationship indicated by "bottom", "side", "vertical", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying The device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "a", "first", "second", "third", "fourth", "fifth", "sixth" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

For the purposes of simplicity and explanation, the principles of the embodiments are described primarily by reference to examples. In the following description, numerous specific details are set forth to provide a thorough understanding of the embodiments. However, it will be apparent to those of ordinary skill in the art that the embodiments may not be limited in practice to these specific details. In some instances, well-known methods and structures have not been described in detail to avoid unnecessarily obscuring the embodiments. In addition, all the embodiments can be used in combination with each other.

1 to 5, the present invention provides a technical solution: a waste acid treatment system for lithium battery material treatment, the waste acid treatment system for lithium battery material treatment includes a reactor 1, and the input end of the reactor 1 One is connected with the automatic dosing device 2 through the pipeline, the output end of the reactor 1 is connected with the input end of the vacuum filter 3 through the pipeline, and the output end of the vacuum filter 3 is connected through the pipeline to the input end of the vacuum collecting tank 6; 8. The input end of the vacuum unit 8 is connected to the output end of the vacuum buffer tank 7 through the pipeline, the input end of the vacuum buffer tank 7 is connected to the output end of the vacuum collection tank 6 through the pipeline, and the input end 2 of the reactor 1 is connected to the feed pump through the pipeline. 9, the input end of the feed pump 9 is connected to the output end of the waste acid tank 10 through the pipeline; and the tail gas reclaimer 4, the input end of the exhaust gas reclaimer 4 is connected to the exhaust port of the reactor 1 through the pipeline, and the output of the exhaust gas reclaimer 4 The end is connected to the tail gas recovery liquid tank 5 through a pipeline, and the output end 2 of the reactor 1 is connected to the input end of the regeneration acid tank 11 through a pipeline.

The inner wall of the automatic dosing device 2 is provided with two sets of overlapping racks 12, the overlapping racks 12 have a ring-shaped plate structure, the top surface of the bottom plate of the automatic dosing device 2 is inclined downward from the edge to the center, and the inner ring of the overlapping rack 12 is A limit slot 22 is opened on the surface, the outer wall of the automatic dosing device 2 is installed with a driving motor 18, and the shaft of the driving motor 18 is connected to the surface of the push handle 19 after passing through the automatic dosing device 2 and the side plate of the overlapping frame 12, The push handle 19 is located in the inner ring port of the lap frame 12, and a screw feeder 23 is installed on the side plate of the reactor 1. The inner part of the limit groove 22 is rotatably connected to the limit shaft 21, and the limit shaft 21 is fixed on the top. On the surface of the push handle 19, the push handle 19 has an elliptical ball structure, and the distance between the two ends of the push handle 19 is smaller than the length of the long side of the inner ring opening of the lap frame 12;

A bump frame 13 is lapped above the lap frame 12 , the inner ring port of the bump frame 13 is provided with a screen plate 14 , the top surface of the bump frame 13 is provided with a plurality of metal shrapnel 15 , and one end of the metal shrapnel 15 is fixed on the reactor On the inner wall of 1, a plurality of metal dome 15 are provided, and the plurality of metal dome 15 are arranged and distributed along the edge of the top surface of the bumper 13. The top surface of the inner ring mouth of the bumper 13 is provided with a rubber material blocking cover 16. The cover 16 has an inverted table-shaped frame structure, the top end of the rubber material blocking cover 16 is fixed on the inner wall of the reactor 1, and the bottom surface of the bumping frame 13 is provided with a material guide frame 17, and the material guide frame 17 has an inverted table-shaped frame structure. The size of the top inner ring of the guide frame 17 is equal to the size of the inner ring of the bumping frame 13;

The top plate of the automatic dosing device 2 is provided with a feeding port 24, the feeding port 24 is centered on the top plate of the automatic dosing device 2, the top of the feeding port 24 is screwed with a cover, and the top plate of the automatic dosing device 2 is plugged with a The traction handle 25, the traction handle 25 has a "U"-shaped rod-shaped structure, and the bottom end of the traction handle 25 is fixed on the top surface of the pressing plate 26, and the pressing plate 26 is under the top plate of the automatic dosing device 2, and the top of the automatic dosing device 2. A connecting plate 27 is provided on the surface of the connecting plate 27 , and a locking screw 28 is screwed on the surface of the connecting plate 27 .

After the reactant is put into the automatic dosing device 2 from the feeding port 24, the lid is screwed to block the feeding port 24, and the two sets of drive motors 18 are activated to drive the corresponding push handle 19 to rotate. When pushed up by the push handle 19, the metal shrapnel 15 is squeezed and bent, and when the push handle 19 is rotated to lie flat with the inner ring of the overlapping frame 12, the metal shrapnel 15 rebounds to push the bumper 13 down, and the bumper 13 falls down. 13 is overlapped on the lap frame 12, so that the push handle 19 is rotated repeatedly, so that the bump frame 13 is bumped up and down, the screen plate 14 shakes off the powder, and the screw feeder 23 falls on the bottom of the automatic dosing device 2. The powder is transported into the reactor 1; after loosening the locking screw 28 and disengaging from the screw groove 29, push down the traction handle 25 to drive the pressing plate 26 to squeeze the agglomerated material that is blocked on the surface of the screen plate 14 to achieve the crushing of the agglomerated material .

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. A waste acid treatment system for the treatment of lithium battery materials, characterized in that: the waste acid treatment system for the treatment of lithium battery materials comprises: Reactor (1), the input end of the reactor (1) is connected with an automatic dosing device (2) through a pipeline, and the output end of the reactor (1) is connected with the input end of the vacuum filter (3) through a pipeline, The output end of the vacuum filter (3) is connected to the input end of the vacuum collecting tank (6) through a pipeline; The vacuum unit (8), the input end of the vacuum unit (8) is connected to the output end of the vacuum buffer tank (7) through a pipeline, and the input end of the vacuum buffer tank (7) is connected to the output end of the vacuum collecting tank (6) through a pipeline, and the reaction The input end two of the device (1) is connected to the feed pump (9) through a pipeline, and the input end of the feed pump (9) is connected to the output end of the spent acid tank (10) through a pipeline; and The exhaust gas recovery device (4), the input end of the exhaust gas recovery device (4) is connected to the exhaust port of the reactor (1) through a pipeline, and the output end of the exhaust gas recovery device (4) is connected to the exhaust gas recovery liquid filling (5) through a pipeline, and The second output end of the reactor (1) is connected to the input end of the regeneration acid tank (11) through a pipeline. 2. A waste acid treatment system for lithium battery material treatment according to claim 1, characterized in that: the inner wall of the automatic dosing device (2) is provided with two sets of overlapping frames (12), the overlapping frames (12) It has an annular plate-like structure, and a bumper frame (13) is overlapped on the top of the overlapping frame (12), and the inner ring port of the bumper frame (13) is provided with a screen plate (14). A drive motor (18) is installed on the outer wall of the ), and the shaft of the drive motor (18) penetrates through the automatic dosing device (2) and the side plate of the overlapping frame (12) and is connected to the surface of the push handle (19). The push handle (19) is located in the inner ring opening of the overlapping frame (12), and a screw feeder (23) is installed on the side plate of the reactor (1). 3. A kind of waste acid treatment system for lithium battery material treatment according to claim 2, characterized in that: the top surface of the bottom plate of the automatic dosing device (2) is inclined downward from the edge to the center, and the overlapping frame ( 12) A limiting groove (22) is provided on the inner ring surface, the interior of the limiting groove (22) is rotatably connected to a limiting shaft (21), and the limiting shaft (21) is fixed on the surface of the push handle (19). 4. A waste acid treatment system for lithium battery material treatment according to claim 2, characterized in that: a plurality of metal shrapnel (15) are provided on the top surface of the bumper (13), and the metal shrapnel (15) One end of the metal shrapnel (15) is fixed on the inner wall of the reactor (1), and a plurality of metal shrapnels (15) are arranged and distributed along the edge of the top surface of the bumper (13). 5. A waste acid treatment system for lithium battery material treatment according to claim 4, characterized in that: a rubber material resistance cover (16) is provided on the top surface of the inner ring mouth of the jitter frame (13), and the rubber resistance The material cover (16) has an inverted table-shaped frame structure, and the top end of the rubber material blocking cover (16) is fixed on the inner wall of the reactor (1). 6. A waste acid treatment system for lithium battery material treatment according to claim 5, characterized in that: the bottom surface of the bumping frame (13) is provided with a material guide frame (17), and the material guide frame (17) is in the shape of a In the inverted table-shaped frame structure, the size of the top inner ring of the guide frame (17) is equal to the size of the inner ring of the bumper frame (13). 7. A waste acid treatment system for lithium battery material treatment according to claim 2, characterized in that: the push handle (19) is in the form of an elliptical sphere, and the distance between the two ends of the push handle (19) is less than The length of the long side of the inner ring mouth of the bracket (12). 8. A waste acid treatment system for lithium battery material treatment according to claim 2, characterized in that: the top plate of the automatic dosing device (2) is provided with a feeding port (24), and the feeding port (24) The top plate of the automatic dosing device (2) is centered, and the top of the feeding port (24) is screwed with a cover. 9. A waste acid treatment system for lithium battery material treatment according to claim 2, characterized in that: a traction handle (25) is inserted on the top plate of the automatic dosing device (2), and the traction handle (25) ) has a "U"-shaped rod structure, the bottom end of the traction handle (25) is fixed on the top surface of the pressing plate (26), and the pressing plate (26) is located below the top plate of the automatic dosing device (2). 10. A waste acid treatment system for lithium battery material treatment according to claim 9, characterized in that: the top surface of the automatic dosing device (2) is provided with a connecting plate (27), and the connecting plate (27) A locking screw (28) is screwed on the surface of the screw, one end of the locking screw (28) is screwed in a screwing groove (29), and the screwing groove (29) is opened on the surface of the traction handle (25).

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