Device for preventing waste battery material from leaching and bubbling

Abstract

The utility model discloses a device for preventing a waste battery material from leaching and bubbling. The device comprises a reaction tank, a guide cylinder, a gas treatment structure and a tubular reactor, one end of the guide cylinder is an outlet which is inserted into the reaction tank; the gas treatment structure is connected with the other end of the guide cylinder; the tubular reactor comprises a tube body and a spray head, one end of the tube body is provided with a first feeding hole and a second feeding hole, the other end of the tube body is inserted into the guide cylinder and is provided with the spray head, and the spray head is positioned above the outlet; the tubular reactor is arranged, so that battery slurry and sulfuric acid can respectively enter the tube body through the first feeding hole and the second feeding hole to be fully reacted, the reaction is promoted to be quickly carried out, gas generated by the reaction is atomized when being sprayed out from the spray head, the gas generated by the reaction is quickly separated from a liquid phase / a solid phase, and the generation of bubbles is reduced; and meanwhile, the sprayed slurry can break bubbles generated on the liquid level.

Description

Technical Field

[0001] The utility model relates to the field of recycling waste battery materials, in particular to a device for preventing waste battery materials from leaching and bubbling. Background Art

[0002] Most of the waste battery powder needs to be acid-leached during recycling. A large amount of gas will be generated during the acid leaching process. If it cannot be released in time, it may cause serious bubbling in the reaction tank, so defoaming treatment is required. Most of the existing defoaming treatments are only carried out when foam appears, and there is no structure to prevent the generation of foam. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a device for preventing waste battery materials from leaching and bubbling.

[0004] The technical solution of the utility model is as follows, including a reaction tank, a guide tube, a gas processing structure and a tubular reactor, one end of the guide tube is an outlet, and the outlet is inserted into the reaction tank; the gas processing structure is connected to the other end of the guide tube, and the gas processing structure is used to extract the gas in the guide tube and perform defoaming treatment on it; the tubular reactor includes a tube body and a nozzle, one end of the tube body is provided with a first feed port and a second feed port, the other end of the tube body is inserted into the guide tube and provided with the nozzle, and the nozzle is located above the outlet.

[0005] Furthermore, the gas processing structure includes a demister, a fan and an exhaust gas absorption system, the demister is connected to the other end of the guide tube, the fan is used to extract the gas in the guide tube and transport it to the demister, the demister is used to separate the gas into gas and liquid, the demister includes a gas outlet and a liquid outlet, and the gas outlet is connected to the exhaust gas absorption system.

[0006] Furthermore, the gas processing structure also includes a reflux pipe, and the liquid outlet is connected to the interior of the reaction tank through the reflux pipe.

[0007] Furthermore, the guide tube includes an extension section and a connecting section, one end of the extension section is the outlet, one end of the extension section is inserted into the reaction tank, the other end of the extension section is connected to one end of the connecting section, the gas processing structure is connected to the other end of the connecting section, the other end of the tube body is inserted into the extension section, and the extension section is vertically arranged.

[0008] Furthermore, the extending section is in a trumpet shape that is narrow at the top and wide at the bottom.

[0009] Furthermore, the tube body is arranged horizontally, and there is a gap between the other end of the tube body and the tube wall of the guide tube.

[0010] Furthermore, it also includes an air supply pipe, the two ends of which are respectively connected to the outside of the reaction tank and the inside of the guide tube, and the outlet end of the air supply pipe is located between the nozzle and the outlet.

[0011] Furthermore, the air supply pipe is installed on the guide tube and is located at the upper end of the reaction tank, and the air supply pipe is arranged obliquely.

[0012] Furthermore, a rotatable stirring paddle is installed in the reaction tank.

[0013] Furthermore, one of the first feed port and the second feed port is used for introducing sulfuric acid, the other of the first feed port and the second feed port is used for introducing slurry, the reaction tank is used to accommodate reaction liquid, the reaction liquid in the reaction tank has a liquid level, the outlet is located below the liquid level, the nozzle is located above the liquid level, and the outlet end of the gas supply pipe is located between the nozzle and the liquid level.

[0014] According to the device for preventing leaching and bubbling of waste battery materials of the utility model, at least the following technical effects are achieved: by providing a tubular reactor, battery slurry and sulfuric acid can enter the tube body through the first feed port and the second feed port respectively to fully react, thereby promoting rapid reaction, and making the gas generated by the reaction atomized when sprayed from the nozzle, thereby making the gas generated by the reaction quickly separated from the liquid phase / solid phase, reducing the generation of bubbles, and at the same time, the sprayed slurry can also break the bubbles generated on the liquid surface, thereby achieving the purpose of defoaming.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Additional aspects and advantages of the present invention will become apparent and easily understood from the description of the technical solution in conjunction with the following drawings, in which:

[0017] Figure 1 This is a schematic diagram of the structure of a device for preventing waste battery materials from leaching and bubbling according to the technical solution of the utility model.

[0018] Figure numerals: reaction tank 100, liquid level 101, stirring paddle 110, guide tube 200, outlet 210, extension section 220, connecting section 230, gas treatment structure 300, demister 310, liquid outlet 311, fan 320, reflux pipe 330, tubular reactor 400, tube body 410, first feed inlet 411, second feed inlet 412, nozzle 420, gas supply pipe 500. DETAILED DESCRIPTION

[0019] The technical solution of the present invention is described in detail below, and examples of the technical solution are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The technical solution described below with reference to the accompanying drawings is exemplary and is only used to explain the present invention, and cannot be understood as limiting the present invention.

[0020] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] In the description of the utility model, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0022] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0023] Reference Figure 1 As shown, the device for preventing leaching and bubbling of waste battery materials provided in the embodiment of the utility model includes a reaction tank 100, a guide tube 200, a gas processing structure 300 and a tubular reactor 400; one end of the guide tube 200 is an outlet 210, and one end of the outlet 210 is inserted into the reaction tank 100; the gas processing structure 300 is connected to the other end of the guide tube 200, and the gas processing structure 300 is used to extract the gas in the guide tube 200 and perform defoaming treatment on it; the tubular reactor 400 includes a tube body 410 and a nozzle 420, one end of the tube body 410 is provided with a first feed port 411 and a second feed port 412, the other end of the tube body 410 is inserted into the guide tube 200 and is provided with a nozzle 420, and the nozzle 420 is located above the liquid level 101.

[0024] By providing a tubular reactor 400, battery slurry and sulfuric acid can enter the tube body 410 through the first feed port 411 and the second feed port 412 respectively to fully contact and react. Since sulfuric acid releases heat during dilution and reaction, the reaction is promoted to proceed quickly, gas is generated quickly, and the gas generated by the reaction can be ejected from the nozzle 420 at high speed to be atomized, thereby allowing the gas generated by the reaction to be quickly separated from the liquid / solid phase, reducing the generation of bubbles. At the same time, the ejected slurry can also break the bubbles generated on the liquid surface, thereby achieving the purpose of defoaming. By providing a gas processing structure 300, the gas can be processed to reduce the risk of foam overflow.

[0025] During operation, the liquid level 101 of the reaction liquid in the reaction tank 100 is between the nozzle 420 and the outlet 210, the slurry enters the tube body 410 through the first feed port 411, and the sulfuric acid enters the tube body 410 through the second feed port 412. The slurry and the sulfuric acid fully contact and react in the tube body 410. After the slurry and the sulfuric acid are fully mixed and reacted, they are sprayed from the nozzle 420, sprayed into the guide tube 200, and enter the reaction tank 100 through the guide tube 200. The ejected gas enters the gas treatment structure 300 for defoaming treatment under the action of the gas treatment structure 300, and the ejected liquid phase or solid phase enters along the connecting section 210. The reaction continues in the reaction tank 100, wherein the foam with a lower density floats on the liquid surface, and the foam can be broken by the liquid phase or solid phase sprayed out at high speed by the nozzle 420. In addition, since the outlet 210 is located below the liquid surface 101, a liquid seal effect is formed, so that the gas sprayed out by the nozzle 420 is located in the guide tube 200, and the remaining small amount of liquid phase gas is controlled in a small range, which is convenient for collection and treatment, and timely release is achieved to prevent changes in the properties of certain materials, further reducing the generation of bubbles. Even if bubbles are generated in the guide tube 200, they will not overflow, but enter the demister 310 for water vapor separation, which will not affect the on-site environment.

[0026] Furthermore, if Figure 1 As shown, the gas processing structure 300 includes a demister 310, a fan 320 and a tail gas absorption system (not shown in the figure), the demister 310 is connected to the other end of the guide tube 200, the fan 320 is used to extract the gas in the guide tube 200 and transport it to the demister 310, the demister 310 is used to separate the gas from the liquid, the demister 310 includes a gas outlet (not shown in the figure) and a liquid outlet 311, and the gas outlet is connected to the tail gas absorption system; by providing the demister 310 and the fan 320, the gas is efficiently separated from the liquid, and the generation and overflow risks of bubbles are effectively reduced; specifically, the gas outlet is connected to the fan 320 and the tail gas absorption system in sequence;

[0027] During operation, the nozzle 420 sprays gas and liquid or solid phase into the guide tube 200, the fan 320 extracts the gas in the guide tube 200 and transports the gas to the demister 310, the demister 310 separates the gas into gas and liquid, and the separated gas is transported to the tail gas absorption system, the tail gas absorption system processes the gas to make it meet the discharge conditions, and the separated liquid is transported to an external storage barrel or to the reaction tank 100; specifically, the tail gas absorption system includes a spray tower;

[0028] Specifically, the gas processing structure 300 also includes a reflux pipe 330, and the liquid outlet 311 is connected to the interior of the reaction tank 100 through the reflux pipe 330. By providing the reflux pipe 330 between the demister 310 and the reaction tank 100, energy loss can be reduced and water balance can be easily controlled.

[0029] Furthermore, if Figure 1 As shown, the liquid outlet end of the reflux pipe 330 is located below the liquid surface 101 , so that the liquid in the reflux pipe 330 can react more easily with the reaction liquid in the reaction tank 100 .

[0030] Furthermore, if Figure 1 As shown, the guide tube 200 includes an extension section 220 and a connecting section 230, one end of the extension section 220 is an outlet 210, one end of the extension section 220 is inserted into the reaction tank 100, the other end of the extension section 220 is connected to one end of the connecting section 230, the gas processing structure 300 is connected to the other end of the connecting section 230, and the other end of the tube body 410 is inserted into the extension section 220. The extension section 220 is vertically arranged to facilitate the liquid or solid phase sprayed by the nozzle 420 to impact and disperse the foam in the guide tube 200, thereby playing a defoaming role; specifically, the spraying direction of the nozzle 420 is downward.

[0031] Furthermore, if Figure 1 As shown, the extending section 220 is in a trumpet shape that is narrow at the top and wide at the bottom, so that the liquid or solid phase sprayed by the nozzle 420 can impact and disperse the foam in the guide tube 200.

[0032] Furthermore, if Figure 1 As shown, the tube body 410 is arranged horizontally, and there is a gap between the other end of the tube body 410 and the tube wall of the guide tube 200 to allow the slurry and sulfuric acid to be fully mixed.

[0033] Furthermore, if Figure 1 As shown, it also includes an air supply pipe 500, the two ends of which are respectively connected to the outside of the reaction tank 100 and the inside of the guide tube 200, and the outlet end of the air supply pipe 500 is located between the nozzle 420 and the liquid level 101, so as to stabilize the pressure in the guide tube 200 through the air supply pipe 500 to ensure that the fan 320 will not draw the reaction liquid in the reaction tank 100.

[0034] Furthermore, if Figure 1 As shown, the air supply pipe 500 is installed on the guide tube 200 and is located at the upper end of the reaction tank 100. The air supply pipe 500 is inclined so that the position of the air supply pipe 500 is lower. The foam can be broken while supplying air, further preventing the foam from gathering.

[0035] Furthermore, if Figure 1 As shown, a rotatable stirring paddle 110 is installed in the reaction tank 100 to allow the liquid phase or the solid phase to fully react in the reaction tank 100 .

[0036] Furthermore, one of the first feed port 411 and the second feed port 412 is used for introducing sulfuric acid, and the other of the first feed port 411 and the second feed port 412 is used for introducing slurry, so that the first feed port 411 or the second feed port 412 can stably introduce slurry or sulfuric acid; the reaction tank 100 is used to accommodate the reaction liquid, the reaction liquid in the reaction tank 100 has a liquid level 101, the outlet 210 is located below the liquid level 101, the nozzle 420 is located above the liquid level 101, and the outlet end of the air supply pipe 500 is located between the nozzle 420 and the liquid level 101, so that the defoaming effect of the bubbling device is optimized.

[0037] like Figure 1 As shown, when the device is working, the slurry enters the tube body 410 through the first feed port 411, and the sulfuric acid enters the tube body 410 through the second feed port 412. The slurry and the sulfuric acid fully contact and react in the tube body 410. After the slurry and the sulfuric acid are fully mixed and reacted, they are sprayed from the nozzle 420 and sprayed into the guide tube 200. Since the guide tube 200 is inserted below the liquid level 101, it plays a role of liquid sealing. The gas sprayed into the guide tube 200 can only be located in the guide tube 200, and then the gas moves upward under the action of the fan 320 and enters the demister 310. The demister 310 The gas containing a small amount of liquid phase is separated into gas and liquid, and the separated liquid flows back to the reaction tank 100 through the liquid outlet 311 and the reflux pipe 330. The separated gas enters the tail gas absorption system, and the tail gas absorption system processes the gas to make the gas meet the discharge conditions. The sprayed liquid phase or solid phase sinks downward along the guide tube 200 and sinks into the reaction tank 100, and then is evenly dispersed in the reaction tank 100 by the stirring paddle 110, and continues to react. The lighter density foam floats on the liquid surface in the guide tube 200, and the fallen liquid phase or solid phase breaks the foam on the liquid surface.

[0038] Although the technical solutions of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the technical solutions without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A device for preventing waste battery materials from leaching and bubbling, characterized in that: include: Reaction tank (100); A flow guide tube (200), one end of which is an outlet (210), and the outlet (210) is inserted into the reaction tank (100); A gas processing structure (300) is connected to the other end of the guide tube (200), and the gas processing structure (300) is used to extract the gas in the guide tube (200) and perform a defoaming process on the gas; A tubular reactor (400) comprises a tube body (410) and a nozzle (420), wherein one end of the tube body (410) is provided with a first feed port (411) and a second feed port (412), and the other end of the tube body (410) is inserted into the guide tube (200) and provided with the nozzle (420), and the nozzle (420) is located above the outlet (210).

2. The device for preventing waste battery materials from leaching and bubbling according to claim 1 is characterized in that: The gas processing structure (300) comprises a demister (310), a fan (320) and an exhaust gas absorption system; the demister (310) is connected to the other end of the guide tube (200); the fan (320) is used to extract the gas in the guide tube (200) and transport it to the demister (310); the demister (310) is used to perform gas-liquid separation on the gas; the demister (310) comprises an air outlet and a liquid outlet (311); the air outlet is connected to the exhaust gas absorption system.

3. The device for preventing waste battery materials from leaching and bubbling according to claim 2, characterized in that: The gas processing structure (300) further comprises a reflux pipe (330), and the liquid outlet (311) is connected to the interior of the reaction tank (100) through the reflux pipe (330).

4. The device for preventing waste battery materials from leaching and bubbling according to claim 1, characterized in that: The guide tube (200) comprises an extension section (220) and a connecting section (230); one end of the extension section (220) is the outlet (210); one end of the extension section (220) is inserted into the reaction tank (100); the other end of the extension section (220) is connected to one end of the connecting section (230); the gas processing structure (300) is connected to the other end of the connecting section (230); the other end of the tube body (410) is inserted into the extension section (220); and the extension section (220) is vertically arranged.

5. The device for preventing waste battery materials from leaching and bubbling according to claim 4 is characterized in that: The extending section (220) is in the shape of a trumpet that is narrow at the top and wide at the bottom.

6. The device for preventing waste battery materials from leaching and bubbling according to claim 4, characterized in that: The tube body (410) is arranged horizontally, and a gap is provided between the other end of the tube body (410) and the tube wall of the flow guide tube (200).

7. The device for preventing waste battery materials from leaching and bubbling according to claim 1 or 4, characterized in that: It also includes an air supply pipe (500), the two ends of which are respectively connected to the outside of the reaction tank (100) and the inside of the guide tube (200), and the outlet end of the air supply pipe (500) is located between the nozzle (420) and the outlet (210).

8. The device for preventing waste battery materials from leaching and bubbling according to claim 7, characterized in that: The air supply pipe (500) is installed on the guide tube (200) and is located at the upper end of the reaction tank (100). The air supply pipe (500) is arranged obliquely.

9. The device for preventing waste battery materials from leaching and bubbling according to claim 1, characterized in that: A rotatable stirring paddle (110) is installed in the reaction tank (100).

10. The device for preventing waste battery materials from leaching and bubbling according to claim 7, characterized in that: One of the first feed port (411) and the second feed port (412) is used for introducing sulfuric acid, and the other of the first feed port (411) and the second feed port (412) is used for introducing slurry. The reaction tank (100) is used to contain a reaction liquid. The reaction liquid in the reaction tank (100) has a liquid level (101). The outlet (210) is located below the liquid level (101). The nozzle (420) is located above the liquid level (101). The outlet end of the gas supply pipe (500) is located between the nozzle (420) and the liquid level (101).

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