CN215462138U - Sulfate crystallization system - Google Patents
Sulfate crystallization system Download PDFInfo
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- CN215462138U CN215462138U CN202121659920.6U CN202121659920U CN215462138U CN 215462138 U CN215462138 U CN 215462138U CN 202121659920 U CN202121659920 U CN 202121659920U CN 215462138 U CN215462138 U CN 215462138U
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Abstract
The utility model provides a sulfate crystallization system, which comprises a crystallization kettle; the crystallization kettle comprises a kettle body, a circulating material inlet arranged on the side wall of the kettle body and a circulating material outlet arranged at the bottom end of the side wall of the kettle body; the kettle body comprises a cylindrical barrel part and a conical crystallization part, a steam inlet is formed in the side wall of the conical crystallization part, a steam outlet is formed in the top end of the cylindrical barrel part, and a crystal discharge hole is formed in the bottom end of the side wall of the conical crystallization part; the bottom end of the conical crystallization part is provided with a reverse cleaning mechanism; and a steam outlet of the crystallization kettle is connected with a steam circulating system, and the air outlet end of the steam circulating system is communicated with a steam inlet. The steam circulation system connected with the steam outlet of the crystallization kettle can utilize the waste heat in the steam after reaction, pressurize and heat the steam after reaction, and the steam after pressurization and temperature rise returns to the crystallization kettle again, so that the steam can be recycled, and the waste heat can be effectively utilized.
Description
Technical Field
The utility model relates to the technical field of waste battery resource recycling, in particular to a sulfate crystallization system.
Background
Compared with the commonly used lead-acid battery, nickel-copper battery and other traditional batteries, the lithium ion battery has higher theoretical capacity and volume energy density, and also has a series of advantages of long working time, high safety performance, no memory effect, environmental friendliness and the like, so that the lithium ion battery can be widely applied to electronic equipment as an excellent energy storage device, such as mobile phones, computers, digital cameras, power batteries and the like. The lithium ion battery mainly comprises a positive electrode material, a negative electrode material, a diaphragm, a binder, a conductive agent and the like, wherein the positive electrode material mainly comprises lithium cobaltate, lithium manganate, lithium nickelate, lithium iron phosphate, a ternary material and the like. Lithium cobaltate is a typical positive electrode material, is widely used in daily life due to high capacity and strong cycling stability, cobalt and lithium in the lithium cobaltate have high recovery value as rare metal elements, and the battery contains a large amount of noble metals and rare elements, so that the battery is not only harmful to water and soil environments, but also has rich metal resource development value, and is not suitable to be treated as common household garbage, and the optimal treatment mode is recycling. The cyclic resource utilization refers to a recycling process of preparing a valuable product which is the same as or similar to the product performance through reasonable decomposition and recombination of a product after the product is scrapped. The recycling of the battery anode material means that the battery anode material is prepared into a new battery material according to a certain formula after the battery is scrapped through element decomposition.
After the waste lithium batteries are physically crushed, the black powder is subjected to wet extraction, the material solution contains nickel sulfate, cobalt sulfate and manganese sulfate, and a sulfate crystallization kettle is adopted to crystallize the materials in order to obtain nickel sulfate, cobalt sulfate and manganese sulfate products. However, when the existing sulfate crystallization kettle carries out evaporation crystallization on materials, steam discharged from the crystallization kettle is directly discharged into the atmosphere, and because the steam contains certain heat, the direct emptying undoubtedly causes waste of the heat.
And sulfate crystallization kettle is when carrying out the evaporation crystallization to the material, and the adhesion is attached to on the inner wall of the cauldron body easily to the material after the crystallization, easily causes blocking phenomenon to the crystallization mouth, needs under the sour crystallization kettle shut down state, and the access hole is opened to the manual work, adopts the instrument to clear up inside again, wastes time and energy, and is very inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model provides a sulfate crystallization system, which aims to solve the problems in the background art, effectively utilize the waste heat in the steam discharged from a sulfate crystallization kettle, realize convenient cleaning of materials adhered to the inner wall of the kettle body and effectively reduce labor power and time.
The technical scheme of the utility model is realized as follows:
a sulfate crystallization system comprises a crystallization kettle for evaporating and crystallizing materials; the crystallization kettle comprises a kettle body, a circulating material inlet arranged on the side wall of the kettle body and a circulating material outlet arranged at the bottom end of the side wall of the kettle body; the kettle body comprises a cylindrical barrel part and a conical crystallization part arranged below the cylindrical barrel part, a steam inlet for introducing high-temperature steam is formed in the side wall of the conical crystallization part, a steam outlet for discharging the steam after reaction is formed in the top end of the cylindrical barrel part, and a crystal discharge hole for discharging the crystallized materials is formed in the bottom end of the side wall of the conical crystallization part; the bottom end of the conical crystallization part is provided with a reverse cleaning mechanism for introducing high-pressure cleaning water to perform reverse washing on the kettle body; and the steam outlet of the crystallization kettle is connected with a steam circulating system which is used for utilizing the waste heat in the reacted steam and pressurizing and heating the reacted steam, and the air outlet end of the steam circulating system is communicated with the steam inlet.
According to the technical scheme, the steam circulating system comprises a heat exchanger which is communicated with a steam outlet and is used for utilizing waste heat in steam after reaction, a gas-liquid separator which is communicated with the air outlet end of the heat exchanger and is used for carrying out water-vapor separation on the steam, and a steam compressor which is communicated with the air outlet end of the gas-liquid separator and is used for pressurizing and heating the steam, wherein the air outlet end of the steam compressor is communicated with the steam inlet.
Further optimize technical scheme, reverse wiper mechanism is including the intercommunication setting at the mouth that washes of taper crystal portion bottom, washes the mouth and is provided with the high-pressure squirt through connecting line connection, is provided with the solenoid valve on the connecting line.
According to the technical scheme, the bottom end of the conical crystallization part is provided with an emptying port, and a microporous filter screen for preventing crystallization materials from falling out is arranged at the emptying port.
Further optimize technical scheme, the top of column barrel portion still is provided with and is used for carrying out the abluent positive wiper mechanism of positive to the cauldron body.
According to the technical scheme, the forward cleaning mechanism comprises a cleaning water interface which is connected and arranged on the top end of the cylindrical barrel part, the cleaning water interface is connected with a cleaning water tank through a connecting pipeline, and a water pump which is located in the cleaning water tank is arranged on the connecting pipeline.
Further optimize technical scheme, crystal discharge gate department is provided with the velocity meter that is used for detecting crystallization material discharge velocity.
Further optimize technical scheme, first level gauge and second level gauge have set gradually on the inside wall of the cauldron body from high to low.
Further optimize technical scheme, be provided with the first observation sight glass that is convenient for the staff to observe the inside material state of column barrel on the lateral wall of column barrel, be provided with the second observation sight glass that is convenient for the staff to observe the inside material state of cone crystallization portion on the lateral wall of cone crystallization portion.
Further optimize technical scheme, the inside of the cauldron body still is provided with the temperature sensor who is used for detecting the internal temperature situation of cauldron and is used for detecting the pressure sensor of the internal pressure situation of cauldron.
By adopting the technical scheme, the utility model has the beneficial effects that:
the steam circulation system connected with the steam outlet of the crystallization kettle can utilize the waste heat in the steam after reaction, pressurize and heat the steam after reaction, and the steam after pressurization and temperature rise returns to the crystallization kettle again, so that the steam can be recycled, the waste heat can be effectively utilized, and the energy is effectively saved. And the utility model discloses can also wash equipment inside under equipment shutdown state. And spraying high-pressure water to the flushing port through a high-pressure water gun, and further carrying out back flushing on the inner wall of the kettle body by the high-pressure water. Or the water pump is used for pumping cleaning water in the cleaning water tank to the interior of the kettle body for cleaning, so that the cleaning kettle is very convenient, the manual opening of equipment for cleaning is not needed, the labor and the time are greatly reduced, and the working efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of the present invention.
Wherein: 1. the device comprises a circulating material inlet, 2 a circulating material outlet, 3 a kettle body, 31 a cylindrical barrel body, 32 a conical crystallization part, 4 a crystal discharge hole, 5 a drain hole, 6 a flushing hole, 7 a cleaning water interface, 8 a first liquid level meter, 9 a first observation sight glass, 10 a second liquid level meter, 11 a temperature sensor, 13 a manhole, 14 a mounting bracket, 15 a steam inlet, 17 a second observation sight glass, 19 a steam outlet, 20 a steam circulating system, 201, a gas-liquid separator, 202 a steam compressor, 203, a heat exchanger, 204 and a steam conveying pipeline.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A sulfate crystallization system, shown in connection with fig. 1, includes a crystallization kettle and a steam circulation system 20.
The crystallization kettle is used for evaporating and crystallizing the materials and comprises a kettle body 3, a circulating material inlet 1 and a circulating material outlet 2.
The circulating material inlet 1 is arranged on the side wall of the kettle body 3, and the circulating material enters the kettle body 3 through the circulating material inlet 1. The circulating material outlet 2 is arranged at the bottom end of the side wall of the kettle body 3, and residual materials after evaporation crystallization are discharged from the circulating material outlet 2.
2 departments of circulation material export are provided with the filter screen, and the filter screen can block the crystallization material, only can make the material of uncrystallization pass through.
The kettle 3 comprises a cylindrical barrel part 31 and a conical crystallization part 32 arranged below the cylindrical barrel part 31, wherein the conical crystallization part 32 is used for collecting crystallized materials.
The side wall of the conical crystallization part 32 is provided with a steam inlet 15 for introducing high-temperature steam, and the top end of the columnar barrel part 31 is provided with a steam outlet 19 for discharging the steam after reaction.
The bottom end of the side wall of the conical crystallization part 32 is provided with a crystal discharge port 4, and the crystal discharge port 4 is used for discharging crystallized materials.
The bottom of the conical crystallization part 32 is also provided with a drain opening 5, a microporous filter screen for preventing crystallization materials from falling is arranged at the drain opening 5, the arranged microporous filter screen can discharge air and waste water after cleaning, and the particle size of the crystallization materials is larger than the pore size of the microporous filter screen, so that the crystallization materials can be prevented from falling out.
The bottom of toper crystal portion 32 is provided with reverse wiper mechanism, and reverse wiper mechanism is used for letting in high-pressure cleaning water to carry out the backwash to the cauldron body 3, and then wash the material that will adhere to on the cauldron body 3 inside wall down. The reverse cleaning mechanism comprises a flushing port 6 and a high-pressure water gun. The flushing port 6 is communicated with the bottom end of the conical crystallization part 32, the flushing port 6 is connected with a high-pressure water gun through a connecting pipeline, and an electromagnetic valve is arranged on the connecting pipeline.
The top of the cylindrical barrel part 31 is also provided with a forward cleaning mechanism, and the forward cleaning mechanism is used for performing forward cleaning on the kettle body 3.
The forward cleaning mechanism comprises a cleaning water interface 7 which is connected and arranged on the top end of the cylindrical barrel part 31, the cleaning water interface 7 is connected with a cleaning water tank through a connecting pipeline, and a water pump which is positioned in the cleaning water tank is arranged on the connecting pipeline.
The crystal discharge port 4 is provided with a flow rate meter for detecting the discharge speed of the crystal material, the flow rate meter can feed the discharge speed of the crystal material back to the PLC in real time, and when the flow rate meter detects that the discharge speed of the crystal material is less than the speed value set inside the PLC, the blockage phenomenon of the crystal discharge port 4 is indicated.
The inside wall of the kettle body 3 is sequentially provided with a first liquid level meter 8 and a second liquid level meter 10 from high to low, and the first liquid level meter 8 and the second liquid level meter 10 are used for detecting the liquid level height of the materials in the kettle body 3.
The side wall of the cylindrical barrel part 31 is provided with a first observation mirror 9, and the arranged first observation mirror 9 is convenient for a worker to observe the material state in the cylindrical barrel part 31. The side wall of the conical crystallization part 32 is provided with a second observation mirror 17, which is convenient for the staff to observe the material state in the conical crystallization part 32. The operator can decide whether to open the crystal outlet 4 according to the observed crystallization condition.
The inside of the kettle body 3 is also provided with a temperature sensor 11 for detecting the temperature condition inside the kettle body 3 and a pressure sensor for detecting the pressure condition inside the kettle body 3. The working temperature of the utility model is 100 ℃, the working pressure is normal pressure, the temperature sensor 11 and the pressure sensor can monitor the temperature and the pressure in the kettle body 3 in real time, and can feed back monitoring signals to the PLC controller, thereby ensuring that the materials in the kettle body 3 are evaporated and crystallized under the conditions of normal temperature and normal pressure.
In addition, still be provided with manhole 13 on the lateral wall of the cauldron body 3, the staff of being convenient for overhauls the cauldron body 3 inside. Still fixedly on the lateral wall of cauldron body 3 be provided with installing support 14, the equipment of being convenient for is whole installs.
A steam outlet 19 of the crystallization kettle is connected with a steam circulation system 20, the steam circulation system 20 is used for utilizing waste heat in the reacted steam, the reacted steam is pressurized and heated, and the air outlet end of the steam circulation system 20 is communicated with the steam inlet 15.
The steam circulation system 20 includes a heat exchanger 203, a gas-liquid separator 201, and a vapor compressor 202. The steam outlet 19, the heat exchanger 203, the gas-liquid separator 201, the steam compressor 202 and the steam inlet 15 are communicated with each other through a steam conveying pipeline 204 in sequence.
The heat exchanger 203 is communicated with the steam outlet 19 and is used for utilizing waste heat in the steam after reaction, and the steam passes through the inside of the shell of the heat exchanger 203 and is not communicated with a heat exchange pipeline in the heat exchanger 203.
The gas-liquid separator 201 is communicated with the gas outlet end of the heat exchanger 203 and is used for carrying out water-vapor separation on steam.
The vapor compressor 202 is communicated with the gas outlet end of the gas-liquid separator 201, and is used for pressurizing and heating the vapor, and heating the vapor to the vapor temperature required by the crystallization kettle. The gas outlet end of the vapor compressor 202 is communicated with the vapor inlet 15, and the heated vapor can directly return to the crystallization kettle through the vapor inlet 15 again, so that the vapor can be recycled.
The working principle of the utility model is as follows.
The material to be crystallized enters the kettle body 3 from the circulating material inlet 1, high-temperature steam is introduced into the kettle body 3 through the steam inlet 15, the temperature and pressure conditions inside the kettle body 3 are monitored through the temperature sensor 11 and the pressure sensor, and the condition that the inside of the kettle body 3 is at normal temperature and normal pressure is ensured. The introduced materials are evaporated and crystallized in the kettle body 3. After reacting for a period of time, the worker observes the crystallization condition inside the kettle body 3 through the first observation sight glass 9 and the second observation sight glass 17, opens the crystal discharge port 4 and the circulating material outlet 2 after the inside material is almost completely crystallized, discharges the crystallized material from the crystal discharge port 4, and discharges the uncrystallized material from the circulating material outlet 2.
The steam discharged from the steam outlet 19 enters the heat exchanger 203 for heat exchange, the heat exchanger 203 reuses the waste heat in the steam, the steam discharged from the heat exchanger 203 enters the gas-liquid separator 201 for water-vapor separation, the steam enters the steam compressor 202 for pressurization and temperature rise, and finally returns to the crystallization kettle through the steam inlet 15, so that the steam can be recycled.
According to the utility model, the flow meter is arranged at the crystal discharge port 4 and can feed the discharge speed of the crystal back to the PLC in real time, and when the monitored crystal flow speed is lower than the set value of the PLC, the blockage phenomenon at the crystal discharge port 4 is indicated, and the interior of the crystallization kettle needs to be cleaned. After the materials in the crystallization kettle are completely discharged, the whole equipment is shut down, and the interior of the equipment is cleaned. High-pressure water is sprayed to the flushing port 6 through a high-pressure water gun, and then the inner wall of the kettle body is reversely flushed by the high-pressure water. Or the water pump is used for pumping the cleaning water in the cleaning water tank to the inside of the kettle body for cleaning, which is very convenient.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A sulfate crystallization system, characterized by: comprises a crystallization kettle used for evaporating and crystallizing materials; the crystallization kettle comprises a kettle body (3), a circulating material inlet (1) arranged on the side wall of the kettle body (3) and a circulating material outlet (2) arranged at the bottom end of the side wall of the kettle body (3); the kettle body (3) comprises a cylindrical barrel part (31) and a conical crystallization part (32) arranged below the cylindrical barrel part (31), a steam inlet (15) for introducing high-temperature steam is formed in the side wall of the conical crystallization part (32), a steam outlet (19) for discharging steam after reaction is formed in the top end of the cylindrical barrel part (31), and a crystal discharge hole (4) for discharging crystallized materials is formed in the bottom end of the side wall of the conical crystallization part (32); the bottom end of the conical crystallization part (32) is provided with a reverse cleaning mechanism for introducing high-pressure cleaning water to perform reverse washing on the kettle body (3); and a steam outlet (19) of the crystallization kettle is connected with a steam circulation system (20) which is used for utilizing waste heat in the reacted steam and pressurizing and heating the reacted steam, and the air outlet end of the steam circulation system (20) is communicated with the steam inlet (15).
2. A sulfate crystallization system according to claim 1, wherein: the steam circulation system (20) comprises a heat exchanger (203) which is connected with a steam outlet (19) and is used for utilizing waste heat in steam after reaction, a gas-liquid separator (201) which is communicated with the gas outlet end of the heat exchanger (203) and is used for carrying out water-vapor separation on the steam, and a steam compressor (202) which is communicated with the gas outlet end of the gas-liquid separator (201) and is used for pressurizing and heating the steam, wherein the gas outlet end of the steam compressor (202) is communicated with a steam inlet (15).
3. A sulfate crystallization system according to claim 1, wherein: the reverse cleaning mechanism comprises a washing port (6) communicated with the bottom end of the conical crystallization part (32), the washing port (6) is connected with a high-pressure water gun through a connecting pipeline, and an electromagnetic valve is arranged on the connecting pipeline.
4. A sulfate crystallization system according to claim 1, wherein: the bottom of the conical crystallization part (32) is also provided with a drain opening (5), and a microporous filter screen for preventing crystallization materials from falling is arranged at the drain opening (5).
5. A sulfate crystallization system according to claim 1, wherein: the top of the columnar barrel part (31) is also provided with a forward cleaning mechanism for performing forward cleaning on the kettle body (3).
6. A sulfate crystallization system according to claim 5, wherein: the forward cleaning mechanism comprises a cleaning water interface (7) which is connected and arranged on the top end of the cylindrical barrel part (31), the cleaning water interface (7) is connected with a cleaning water tank through a connecting pipeline, and a water pump which is positioned in the cleaning water tank is arranged on the connecting pipeline.
7. A sulfate crystallization system according to claim 1, wherein: and a flow meter for detecting the discharge speed of the crystallized materials is arranged at the crystal discharge port (4).
8. A sulfate crystallization system according to claim 1, wherein: a first liquid level meter (8) and a second liquid level meter (10) are sequentially arranged on the inner side wall of the kettle body (3) from high to low.
9. A sulfate crystallization system according to claim 1, wherein: the side wall of the cylindrical barrel part (31) is provided with a first observation sight glass (9) which is convenient for a worker to observe the state of the material in the cylindrical barrel part (31), and the side wall of the conical crystallization part (32) is provided with a second observation sight glass (17) which is convenient for the worker to observe the state of the material in the conical crystallization part (32).
10. A sulfate crystallization system according to claim 1, wherein: the inside of the kettle body (3) is also provided with a temperature sensor (11) for detecting the internal temperature condition of the kettle body (3) and a pressure sensor for detecting the internal pressure condition of the kettle body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121659920.6U CN215462138U (en) | 2021-07-20 | 2021-07-20 | Sulfate crystallization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121659920.6U CN215462138U (en) | 2021-07-20 | 2021-07-20 | Sulfate crystallization system |
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| Publication Number | Publication Date |
|---|---|
| CN215462138U true CN215462138U (en) | 2022-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121659920.6U Active CN215462138U (en) | 2021-07-20 | 2021-07-20 | Sulfate crystallization system |
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| CN (1) | CN215462138U (en) |
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2021
- 2021-07-20 CN CN202121659920.6U patent/CN215462138U/en active Active
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