CN-224230490-U - High-efficient refrigerated lithium carbonate heat recovery mother liquor tank

Abstract

The utility model discloses a high-efficiency cooling lithium carbonate heat recovery mother solution tank, and relates to the technical field of lithium battery production. The utility model comprises a working bin, an inner heat exchange plate and a gas transmission frame, wherein a plurality of heat exchange square tubes are fixedly penetrated at the inner upper part of the working bin, one end of the working bin is fixedly provided with the gas transmission frame, the gas transmission frame is arranged at the outer side of the heat exchange square tubes, the inner heat exchange plate is fixedly arranged at the inner bottom of the working bin, and a heat exchange coil is fixedly arranged in the inner heat exchange plate. The utility model solves the problems that the heat utilization rate of the solution entering the lithium carbonate mother liquor tank is lower and the cooling rate of the solution is lower by arranging the working bin, the inner heat exchange plate and the gas transmission frame.

Inventors

• ZHAO YONGFENG
• LIU ZEPING
• Su Panzhe
• HAN LIUYANG
• LIU PENGFEI
• Yin Jinpei
• WU JIAOJIAO
• FENG YANYAN

Assignees

• 河南钠锂优材科技有限公司

Dates

Publication Date

20260512

Application Date

20250723

Claims (6)

1. 1. The utility model provides a high-efficient refrigerated lithium carbonate heat recovery mother liquor groove, includes work bin (1), interior heat exchanger plate (2) and gas transmission frame (3), its characterized in that, upper portion link up in work bin (1) is fixed with a plurality of heat transfer square pipes (101), work bin (1) one end is fixed with gas transmission frame (3), gas transmission frame (3) set up in the outside of heat transfer square pipe (101), be fixed with interior heat exchanger plate (2) in work bin (1), interior heat exchanger plate (2) internal fixation has heat exchange coil (202).
2. 2. The lithium carbonate heat recovery mother liquor tank with high efficiency cooling as set forth in claim 1, wherein a first thermal switch (102) and a second thermal switch (103) are fixed on one side of the inner wall of the working bin (1), and the first thermal switch (102) and the second thermal switch (103) have the same height.
3. 3. The lithium carbonate heat recovery mother liquor tank with high efficiency cooling as set forth in claim 1, wherein the heat exchange square tubes (101) are arranged in parallel with each other in the working bin (1), and the intervals between the adjacent heat exchange square tubes (101) are equal.
4. 4. The lithium carbonate heat recovery mother liquor tank with high efficiency cooling as set forth in claim 1, wherein a conveying pipe (104) is symmetrically and fixedly communicated with the lower part of one end of the working bin (1) far away from the gas conveying frame (3), an electric control valve I (105) is fixedly arranged on the peripheral side of each conveying pipe (104), and the height of the conveying pipe (104) is higher than that of the inner heat exchange plate (2).
5. 5. The lithium carbonate heat recovery mother liquor tank with efficient cooling as set forth in claim 1, wherein an input pipe (201) is fixedly connected to one end of the heat exchange coil (202), an output pipe (203) is fixedly connected to one end of the heat exchange coil (202) far away from the input pipe (201), the input pipe (201) and the output pipe (203) are all communicated and pass through the working bin (1), two electric control valves (204) are fixedly arranged on the periphery sides of the input pipe (201) and the output pipe (203) on the outer side of the working bin (1), and the inner heat exchange plate (2) is arranged below the heat exchange square pipe (101).
6. 6. The lithium carbonate heat recovery mother liquor tank with high efficiency cooling as set forth in claim 1, wherein a built-in fan (301) is fixed in the gas transmission frame (3), and both ends of the gas transmission frame (3) are arranged in an opening manner and are arranged towards the heat exchange square tube (101).

Description

High-efficient refrigerated lithium carbonate heat recovery mother liquor tank Technical Field The utility model belongs to the technical field related to lithium battery production, and particularly relates to a high-efficiency cooling lithium carbonate heat recovery mother liquor tank. Background The lithium carbonate mother liquor tank is a key device in lithium salt production, and is mainly used for storing, processing and recycling the residual mother liquor after precipitation or crystallization. The core functions of the method include collecting mother solution containing lithium ions, improving lithium recovery rate, adjusting process parameters (such as pH, concentration and temperature) and environment-friendly impurity treatment. The design of the mother solution tank needs to pay attention to material selection and structural optimization, and an anti-corrosion material (such as PP, PVC, 316L stainless steel or glass fiber reinforced plastic) is generally adopted to resist corrosion of an acidic or alkaline medium, but the lithium carbonate mother solution tank still has the following defects in actual use: The temperature of the solution entering the lithium carbonate mother liquor tank is higher during operation, the solution is directly subjected to heat dissipation through heat dissipation equipment, the cooling speed is slower, the heat of the solution in the lithium carbonate mother liquor tank can be wasted, and the energy utilization rate in production is affected; secondly, lithium carbonate mother liquor groove is in work, and radiating structure sets up in the outside, cools off the solution in the mother liquor groove, along with the going on of work, whether cool off through blowing or output solution, and efficiency is lower, causes the cooling efficiency lower in the mother liquor groove. Disclosure of utility model The utility model aims to provide a lithium carbonate heat recovery mother liquor tank capable of being cooled efficiently, which solves the problems that the heat utilization rate of a solution entering the lithium carbonate mother liquor tank is low and the cooling rate of the solution is low by arranging a working bin, an inner heat exchange plate and a gas transmission frame. In order to solve the technical problems, the utility model is realized by the following technical scheme: The utility model relates to a high-efficiency cooling lithium carbonate heat recovery mother liquor tank which comprises a working bin, an inner heat exchange plate and a gas transmission frame, wherein a plurality of heat exchange square tubes are fixedly penetrated at the inner upper part of the working bin, one end of the working bin is fixedly provided with the gas transmission frame, the gas transmission frame is arranged at the outer side of the heat exchange square tubes, the inner heat exchange plate is fixedly arranged at the inner bottom part of the working bin, a heat exchange coil is fixedly arranged in the inner heat exchange plate, in operation, a processed lithium carbonate solution is left in the working bin through the working bin, the heat exchange coil is fixedly arranged in the inner heat exchange plate through the inner heat exchange plate, when the heat exchange coil passes through fluid, the heat of the lithium carbonate solution in the working bin is recovered, and cooled air is conveyed into the heat exchange square tubes through the gas transmission frame. Further, a first thermosensitive switch and a second thermosensitive switch are fixed on one side of the inner wall of the working bin, the first thermosensitive switch and the second thermosensitive switch are the same in height, the first thermosensitive switch and the second thermosensitive switch are arranged on two sides of the inner wall of the working bin and are used for temperature grading control, when the temperature of a solution is reduced to 50 ℃, the first thermosensitive switch triggers to close a heat exchange system and starts air cooling, and when the temperature is continuously reduced to 20-30 ℃, the second thermosensitive switch closes air cooling and opens solution discharge. Further, the heat exchange square pipes are arranged in parallel in the working bin, the distance between the adjacent heat exchange square pipes is equal, the heat exchange square pipes in the working bin are distributed in parallel at equal intervals, cooling air is ensured to be uniformly distributed, and the heat dissipation efficiency of the high-temperature lithium carbonate solution is improved. Further, the lower part of one end of the working bin, which is far away from the gas transmission frame, is symmetrically and fixedly communicated with a conveying pipe, an electric control valve I is fixed on the peripheral side of each conveying pipe, the height of each conveying pipe is higher than that of the inner heat exchange plate, the conveying pipe with the electric control valve I is symmetrically arrang