Waste lithium battery brine discharging device

Abstract

According to the saline water discharging device for the waste lithium battery, mechanical extrusion on the battery in the whole discharging process is avoided, heat accumulation at a certain position is avoided, and potential safety hazards are reduced. The cabin cover is mounted on the waste discharge cabin, and the waste discharge cabin is filled with a sodium chloride solution; the cylinder seat is fixed on the disc body, the support arm rod is fixed on the disc body, and the armature disc is fixed at the upper end of the support arm rod; the bracket is fixed in the waste discharge cabin, a rotating seat is rotatably mounted on the bracket, and the disc body is inserted in the rotating seat; the gear motor is installed on the hatch cover, and a magnet disc is fixed to the end of a rotating shaft of the gear motor. The expansion cylinder is fixed at the lower end of the waste discharge cabin and is communicated with the waste discharge cabin; the piston plate is slidably mounted in the expansion cylinder; the electric push rod is connected with the piston plate; the cooling coil is fixed in the waste discharge cabin; the external liquid inlet pipe and the external liquid outlet pipe are both mounted on the waste discharge cabin, the external liquid inlet pipe is connected with an inlet of the cooling coil, and the external liquid outlet pipe is connected with an outlet of the cooling coil.

Description

Technical Field

[0001] The invention relates to a waste lithium battery brine discharge device, which is used in the field of waste lithium battery recovery. Background Art

[0002] With the widespread use of lithium batteries in our daily lives, the disposal of waste lithium batteries has become an urgent problem to be solved. In order to effectively dispose of waste lithium batteries and reduce the harm to the environment and human health, lithium battery discharge treatment is first required. Lithium battery discharge treatment is the first step in the treatment of waste lithium batteries. It discharges the lithium battery by soaking it in salt water, effectively reducing the amount of energy stored in the lithium battery and creating conditions for subsequent recycling. This treatment method can reduce the potential dangers of waste lithium batteries during storage or treatment.

[0003] The existing Chinese patent with the announcement number CN111969268B discloses a waste lithium battery discharge auxiliary device, including a discharge box, a lithium battery and a processing box, the inner cavity of the discharge box is fixedly connected with a curved plate, the side of the curved plate is slidably connected with the side of the lithium battery, and the side of the discharge box is penetrated by a rotating rod. The present invention relates to the technical field of battery discharge auxiliary devices. The waste lithium battery discharge auxiliary device, through the cooperation of four curved plates, makes the lithium battery in the discharge box move in a curved path, ensuring that the moving distance is increased under the same volume. At the same time, through the cooperation of a water pump, a water inlet pipe, a water outlet pipe, a first connecting pipe and a second connecting pipe, the salt water in the discharge box is moved, further increasing the relative moving distance of the salt water and the lithium battery, improving the discharge effect, and solving the problem that the common lithium battery discharge auxiliary device is difficult to ensure that the lithium battery is fully in contact with the salt water, and the discharge effect is poor.

[0004] The existing Chinese patent with publication number CN117886112A discloses a waste lithium battery discharge recovery device, including a box body, the upper end face of the box body is connected to the left end face through an inclined transition, a roller with an axis horizontally placed front and back is rotatably connected in the box body, a plurality of sink grooves are opened in the front and back directions on the upper edge of the outer edge of the roller, all the sink grooves are evenly distributed along the circumference of the axis of the roller, a discharge pipe is fixed on the inclined surface of the upper left end of the box body, one end of the discharge pipe faces the outside of the box body, and the other end of the pipe mouth is in contact with the outer edge of the roller, a baffle is hinged on the outer pipe mouth of the discharge pipe, the baffle is perpendicular to the discharge pipe so as to block the discharge pipe, the baffle swings downward to drive the roller to rotate clockwise, the baffle swings upward to stop the roller from rotating, and the battery can be placed in the sink through the discharge pipe after the baffle swings downward; the invention can drive the roller to rotate each time the baffle swings downward, which is convenient for the placement of the battery, and at the same time, the battery that has been put into the sink cannot be taken out by the discharge pipe, so as to prevent illegal personnel from stealing the battery through the discharge pipe.

[0005] However, these two patented structures will have mechanical devices to squeeze the battery when working, and there is a problem of heat concentration during the discharge process, which poses a great safety hazard. Summary of the invention

[0006] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art and to provide a waste lithium battery salt water discharge device with a rational structural design, which has no mechanical compression on the battery during the whole discharge process, avoids heat accumulation in a certain place, and reduces safety hazards.

[0007] The technical solution adopted by the present invention to solve the above-mentioned problem is: a waste lithium battery brine discharge device, characterized in that it includes a reduction motor, a waste discharge cabin, an expansion cylinder, an electric push rod, a piston plate, a cooling coil, an external liquid inlet pipe, a bracket, a rotating seat, a waste placement tray, a support arm rod, an armature plate, an external liquid outlet pipe and a hatch cover; the hatch cover is installed on the waste discharge cabin, and the waste discharge cabin is filled with sodium chloride solution; the waste placement tray includes a tray body, a cylinder seat, a support arm rod and an armature plate; the cylinder seat is fixed on the tray body, the support arm rod is fixed on the tray body, and the armature plate is fixed on the upper end of the support arm rod; the bracket is fixed in the waste discharge cabin, and the bracket is fixed on the bracket. A rotating seat is rotatably installed, and the disk body is inserted in the rotating seat; the reduction motor is installed on the cabin cover, and a magnet disk is fixed at the end of the rotating shaft of the reduction motor. When the cabin cover is closed, the magnet disk and the armature disk are magnetically attracted to connect the reduction motor and the waste placement disk together; the expansion cylinder is fixed at the lower end of the waste discharge cabin, and the expansion cylinder is connected to the waste discharge cabin; the piston plate is slidably installed in the expansion cylinder; the electric push rod is connected to the piston plate; the cooling coil is fixed in the waste discharge cabin; the external liquid inlet pipe and the external liquid outlet pipe are both installed on the waste discharge cabin, the external liquid inlet pipe is connected to the inlet of the cooling coil, and the external liquid outlet pipe is connected to the outlet of the cooling coil.

[0008] The cartridge seats described in the present invention are multiple and fixed on the disc body at intervals.

[0009] The designed height of the armature disc of the present invention is higher than the liquid level of the sodium chloride solution in the waste discharge chamber.

[0010] The rotating seat of the present invention has a cross groove open upward in the middle, and a cross pin protruding downward is fixed on the lower end surface of the disc body for being inserted into the rotating seat.

[0011] The invention also comprises a filter plate, which is fixed at the upper end of the expansion cylinder.

[0012] The hatch cover of the present invention is provided with an exhaust gas exhaust pipe joint.

[0013] The lower end surface of the waste discharge chamber of the present invention is provided with a liquid discharge valve which is communicated with the inner cavity of the waste discharge chamber.

[0014] The lower end of the waste discharge cabin of the present invention is fixed with a supporting foot.

[0015] The hatch cover of the present invention is provided with an ammeter for detecting the current size in the sodium chloride solution.

[0016] The hatch cover of the present invention is provided with a temperature gauge for detecting the temperature of the sodium chloride solution.

[0017] Compared with the prior art, the present invention has the following advantages and effects: 1. The design of the waste placement tray arranges the batteries in an orderly manner and there is no mechanical compression on the batteries during the entire discharge process, which is safer than the existing design.

[0018] 2. The waste placement tray is designed with a suspended magnetic connection. Since the reduction motor rotates at a low speed, the magnetic attraction can meet the torque transmission, which greatly reduces the difficulty and cost of assembly, and facilitates the complete removal of the waste placement tray and the battery.

[0019] 3. The cooling coil can perform efficient and rapid cooling, and the rotation of the waste placement plate can make the sodium chloride solution move relatively, which is conducive to the uniform dispersion of heat and is cooled by the cooling coil, avoiding heat accumulation in one place and reducing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0021] Figure 2 It is a partial cross-sectional structural schematic diagram of an embodiment of the present invention.

[0022] Figure 3 It is a schematic diagram of the structure of a waste placement tray according to an embodiment of the present invention. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and by way of examples. The following examples are intended to explain the present invention but the present invention is not limited to the following examples.

[0024] The embodiment of the present invention includes a reduction motor 10, an ammeter 11, a thermometer 12, a waste discharge cabin 13, a drain valve 14, an expansion tube 15, a support foot 16, an electric push rod 17, a piston plate 18, a filter plate 19, a cooling coil 20, an external liquid inlet pipe 21, a bracket 22, a rotating seat 23, a waste placement plate 24, a support arm 27, an armature plate 28, an external liquid outlet pipe 29, an exhaust gas exhaust pipe joint 30 and a cabin cover 31.

[0025] The waste discharge cabin 13 is open upward; a support foot 16 is fixed at the lower end of the waste discharge cabin 13 for support; a hatch 31 is hingedly mounted on the waste discharge cabin 13 and is used to open and close the waste discharge cabin 13. The waste discharge cabin 13 is filled with sodium chloride solution (brine) for short-circuiting and discharging the battery. There is an exhaust pipe joint 30 on the hatch 31 for connecting the exhaust pipe, and the exhaust gas is discharged and harmlessly treated under the exhaust pipe's suction action.

[0026] The waste placement tray 24 includes a tray body 25, a cylinder seat 26, a support arm 27 and an armature plate 28. There are multiple cylinder seats 26, which are fixed on the tray body 25 at intervals. The cylinder seats 26 are used to insert waste lithium batteries so that the batteries maintain a reasonable spacing to avoid excessive heat accumulation; the inner diameter of the cylinder seat 26 is slightly larger than the waste lithium batteries to avoid squeezing them. The support arm 27 is fixed in the middle of the tray body 25. The armature plate 28 is fixed at the upper end of the support arm 27. In order to increase the service life, the design height of the armature plate 28 is higher than the liquid level of the sodium chloride solution in the waste discharge chamber 13. The waste placement tray 24 can be equipped with two, one in the waste discharge chamber 13 for discharge, and the other outside. Workers can insert the batteries one by one, and then replace them, and take out the entire waste placement tray 13, which is very convenient and has a high processing efficiency compared to the existing design structure.

[0027] The bracket 22 is welded and fixed in the waste discharge cabin 13, and a rotating seat 23 is rotatably installed in the middle of the bracket 22. A cross groove open upward is provided in the middle of the rotating seat 23. A cross pin protruding downward is fixed on the lower end surface of the disk body 25 for being inserted into the rotating seat 23, so that the disk body 25 is inserted in the rotating seat 23, so that the waste placement disk 24 can be rotatably set in the waste discharge cabin 13.

[0028] The reduction motor 10 is installed on the hatch 31. A magnet disk is fixed to the end of the rotating shaft of the reduction motor 10. When the hatch 31 is closed, the magnet disk and the armature disk 28 are magnetically attracted, so that the reduction motor 10 is connected to the waste placement disk 24. The reduction motor 10 can drive the waste placement disk 24 to rotate at a low speed in the waste discharge cabin 13, which fully and efficiently ensures the contact between the electrode and the sodium chloride solution and ensures good discharge.

[0029] The expansion cylinder 15 is fixed at the lower end of the waste discharge chamber 13, and the expansion cylinder 15 is connected to the waste discharge chamber 13. The piston plate 18 is slidably installed in the expansion cylinder 15. The electric push rod 17 is vertically arranged, and its upper end is slidably arranged in the expansion cylinder 15. The piston plate 18 at the upper end of the electric push rod 17 is fixed. When the electric push rod 17 drives the piston plate 18 to move upward, the space connecting the expansion cylinder 15 and the waste discharge chamber 13 is reduced, so that the sodium chloride liquid level in the waste discharge chamber 13 rises, and vice versa.

[0030] The cooling coil 20 is fixed in the waste discharge cabin 13; the external liquid inlet pipe 21 and the external liquid outlet pipe 29 are both installed on the waste discharge cabin 13, the external liquid inlet pipe 21 is connected to the inlet of the cooling coil 20, and the external liquid outlet pipe 29 is connected to the outlet of the cooling coil 20. The coolant enters the cooling coil 20 through the external liquid inlet pipe 21, cools the sodium chloride solution, takes away the heat of the normal heat release of the battery and discharges it through the external liquid outlet pipe 29, effectively and orderly controls the working temperature in the waste discharge cabin 13, and is safer.

[0031] The filter plate 19 is fixed at the upper end of the expansion cylinder 15 to prevent the particles decomposed from the battery from falling into the expansion cylinder 15 and adhering to the inner wall of the expansion cylinder 15 to affect the normal operation of the piston plate 18 .

[0032] The lower end surface of the waste discharge chamber 13 is provided with a drain valve 14 which is in communication with the inner cavity of the waste discharge chamber 13 and is used for draining liquid when replacing the sodium chloride solution.

[0033] An ammeter 11 for detecting the current in the sodium chloride solution is provided on the hatch 31 to determine whether the discharge is normal and the discharge stage. A thermometer 12 for detecting the temperature of the sodium chloride solution is provided on the hatch 31 to monitor the temperature in real time. When the temperature is abnormal, the sodium chloride solution is quickly lowered by controlling the electric push rod 17 to break the short circuit state and end the discharge.

[0034] When in use, the plate body 25 of the waste material placement plate 24 equipped with the waste battery is inserted into the rotating seat 23, and then the hatch cover 31 is closed, the magnet plate and the armature plate 28 are magnetically connected, so that the reduction motor 10 is connected with the waste material placement plate 24, and the reduction motor 10 drives the waste material placement plate 24 to rotate at a low speed in the waste material discharge cabin 13, fully and efficiently ensuring the contact between the electrode and the sodium chloride solution, and ensuring good discharge. After the discharge is completed, the hatch cover 31 is opened, the magnet plate and the armature plate 28 are separated, and the plate body 25 is pulled out from the rotating seat 23, and the waste material placement plate 24 can be taken out and replaced as a whole.

[0035] In addition, it should be noted that the shapes and names of the parts and components of the specific embodiments described in this specification may be different, and the above content described in this specification is only an example of the structure of the present invention. All equivalent changes or simple changes made based on the structure, features and principles described in the patent concept of the present invention are included in the protection scope of the patent of the present invention. Technicians in the technical field of the present invention can make various modifications or supplements to the specific embodiments described or replace them in a similar manner, as long as they do not deviate from the structure of the present invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. A waste lithium battery salt water discharge device, characterized in that: It includes a reduction motor, a waste discharge cabin, an expansion cylinder, an electric push rod, a piston plate, a cooling coil, an external liquid inlet pipe, a bracket, a rotating seat, a waste placement tray, a support arm rod, an armature plate, an external liquid outlet pipe and a hatch cover; the hatch cover is installed on the waste discharge cabin, and the waste discharge cabin is filled with sodium chloride solution; the waste placement tray includes a tray body, a cylinder seat, a support arm rod and an armature plate; the cylinder seat is fixed on the tray body, the support arm rod is fixed on the tray body, and the armature plate is fixed on the upper end of the support arm rod; the bracket is fixed in the waste discharge cabin, and a rotating seat is rotatably installed on the bracket, and the tray body is inserted in the rotating seat The reduction motor is installed on the hatch cover, and a magnet disk is fixed at the end of the rotating shaft of the reduction motor. When the hatch cover is closed, the magnet disk and the armature disk are magnetically attracted to connect the reduction motor and the waste placement disk together; the expansion cylinder is fixed at the lower end of the waste discharge cabin, and the expansion cylinder is connected to the waste discharge cabin; the piston plate is slidably installed in the expansion cylinder; the electric push rod is connected to the piston plate; the cooling coil is fixed in the waste discharge cabin; the external liquid inlet pipe and the external liquid outlet pipe are both installed on the waste discharge cabin, the external liquid inlet pipe is connected to the inlet of the cooling coil, and the external liquid outlet pipe is connected to the outlet of the cooling coil.

2. The waste lithium battery salt water discharge device according to claim 1 is characterized in that: There are multiple cylinder seats, which are fixed on the disc body at intervals.

3. The waste lithium battery salt water discharge device according to claim 1 is characterized in that: The designed height of the armature plate is higher than the liquid level of the sodium chloride solution in the waste discharge chamber.

4. The waste lithium battery salt water discharge device according to claim 1 is characterized in that: A cross groove opening upward is provided in the middle of the rotating seat, and a cross pin protruding downward is fixed on the lower end surface of the disc body for being inserted into the rotating seat.

5. The waste lithium battery salt water discharge device according to claim 1 is characterized in that: The utility model also comprises a filter plate, and the filter plate is fixed at the upper end of the expansion cylinder.

6. The waste lithium battery salt water discharge device according to claim 1, characterized in that: An exhaust pipe joint is arranged on the hatch cover.

7. The waste lithium battery salt water discharge device according to claim 1, characterized in that: The lower end surface of the waste discharge chamber is provided with a liquid discharge valve which is communicated with the inner cavity of the waste discharge chamber.

8. The waste lithium battery salt water discharge device according to claim 1, characterized in that: A supporting foot is fixed to the lower end of the waste discharge cabin.

9. The waste lithium battery salt water discharge device according to claim 1, characterized in that: An ammeter for detecting the current in the sodium chloride solution is arranged on the hatch cover.

10. The waste lithium battery salt water discharge device according to claim 1, characterized in that: The hatch cover is provided with a temperature gauge for detecting the temperature of the sodium chloride solution.

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