CN210206799U - Lithium cell precursor material production is with concentrated system - Google Patents
Lithium cell precursor material production is with concentrated system Download PDFInfo
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- CN210206799U CN210206799U CN201920748989.2U CN201920748989U CN210206799U CN 210206799 U CN210206799 U CN 210206799U CN 201920748989 U CN201920748989 U CN 201920748989U CN 210206799 U CN210206799 U CN 210206799U
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Abstract
A concentration system for producing a lithium battery precursor material mainly comprises a PLC control system, a concentration tank, a balance tank and a suction filtration pump arranged between the concentration tank and the balance tank; the suction filtration pump is connected with the PLC control system, the bottom of the concentration tank is connected with the reaction kettle, a filtration unit is arranged in the concentration tank, and a plurality of filtration elements are arranged in the filtration unit; the utility model discloses a reactor, including filter unit, drain pipe, suction pump, filtering unit, the filtering unit top sets up the backwash pipe, and the bottom sets up the drain pipe, the drain pipe is connected with the inlet of suction pump, the liquid outlet of suction pump respectively with filter unit's backwash pipe and the filtrating access connection of balance tank bottom, this system structural design science can improve the solid content of material in the reation kettle to reduce the material of filtrating and smuggle secretly, alleviate filtrating processing pressure, reduce product material loss.
Description
Technical Field
The utility model relates to a lithium battery material production technology field especially relates to a supporting concentrated system of lithium cell precursor material apparatus for producing.
Background
The lithium ion battery has the advantages of high working voltage, small volume, light weight, high energy, low pollution, long cycle life and the like, has a synergistic effect and has certain advantages in price, cycle stability, thermal stability and safety performance are improved, and the future application prospect is wide. The precursor is a main raw material for manufacturing the anode material, and the precursor basically adopts a hydroxide coprecipitation method, namely, a mixed solution of nickel, cobalt, manganese and the like, a precipitator, a complexing agent and the like are added into a reaction kettle at the same time to synthesize the precursor (nickel-cobalt-manganese hydroxide) under certain conditions. At present, no matter in sequencing batch or continuous synthesis reaction, materials (precipitates) and filtrate (mother liquor) are generally separated in an overflow mode, the mode usually directly results in low solid content of the materials, the filtrate (mother liquor) carries part of product materials, and the low solid content further results in small product particle size, uneven distribution and low tap density; the filter liquor carries materials, so that the concentration of filter liquor pollutants is higher, raw materials are wasted, the amount of wastewater is increased in the treatment process, and the cost is increased. Therefore, the development of the concentration system for producing the lithium battery precursor material has important application value.
Chinese patent CN103301794A discloses a concentration control method for precursor reaction process of lithium battery material, the change of the total amount of material fed back by a liquid level controller in a reaction kettle in real time at different reaction stages, a PLC control system controls a circulating pump to pump the material in the reaction kettle into a concentration tank, the PLC control system adjusts the concentration tank in time to discharge the concentrated filtrate, the concentrated material returns to the reaction kettle, the concentrated material stays in the reaction kettle continuously for sufficient reaction, the PLC control system controls the cyclic concentration and automatic discharge of the material in the reaction kettle, the automation control degree is high, the reaction precision is high, the reaction time of the material in the reaction kettle can be effectively prolonged, the reaction is ensured to be sufficient, the productivity and the product quality are improved, the reflux of the concentrated material is utilized to control the concentration of the material in the reaction kettle.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is overcome prior art not enough, provide a structural design science, can improve the solid content of material in the reation kettle to the material that reduces filtrating smugglies secretly, alleviates filtrating treatment pressure, reduces the concentrated system is used in lithium cell precursor material production that product material runs off.
For realizing the utility model provides the following technical scheme:
a concentration system for producing a lithium battery precursor material mainly comprises a PLC control system, a concentration tank, a balance tank and a suction filtration pump arranged between the concentration tank and the balance tank; the suction filtration pump is connected with the PLC control system, the bottom of the concentration tank is connected with the reaction kettle, a filtration unit is arranged in the concentration tank, and a plurality of filtration elements are arranged in the filtration unit; the top of the filtering unit is provided with a back-flushing pipe, the bottom of the filtering unit is provided with a liquid outlet pipe, the liquid outlet pipe is connected with a liquid inlet of the suction filtration pump, and a liquid outlet of the suction filtration pump is respectively connected with the back-flushing pipe of the filtering unit and a filtrate inlet at the bottom of the balance tank.
Furthermore, the upper part of the side wall of the balance tank is also provided with an overflow port, the bottom of the side wall of the balance tank is provided with a liquid outlet, the overflow port is connected with a liquid receiving port on the upper part of the side wall of the concentration tank, the liquid outlet is connected with a liquid discharge pipe, the liquid discharge pipe is also provided with an adjusting valve, and the adjusting valve is connected with a PLC control system.
Further, a filtrate valve is further arranged between the liquid outlet of the suction filtration pump and the filtrate inlet at the bottom of the balance tank, and the filtrate valve is connected with the PLC control system.
Further, the filter units at least comprise two groups, and the filter elements are filter plates or filter cloth.
Furthermore, a back washing valve is arranged on the back washing pipe and is connected with the PLC control system.
Furthermore, a liquid outlet valve is arranged on the liquid outlet pipe and connected with the PLC control system.
Further, a communication valve is arranged between the concentration tank and the reaction kettle and is connected with a PLC control system.
The utility model discloses an useful part:
firstly, the method comprises the following steps: the bottom of the concentration tank is connected with the reaction kettle, and the concentration tank and the reaction kettle reach liquid level balance under the action of gravity, so that a pump is not needed, energy is saved, and the production cost is saved;
secondly, the method comprises the following steps: the reaction liquid is filtered by a filter pump, and the filtrate enters a balance tank, so that the discharge and reflux of the filtrate can be effectively controlled;
thirdly, the method comprises the following steps: the PLC control system is utilized to control the operation of the whole concentration system, and the automation degree is high;
fourthly: after the system is used for concentration, the solid content of materials in the precursor synthesis reaction kettle is improved, and a foundation is laid for the improvement of the subsequent product quality;
fifth, the method comprises the following steps: the material entrainment of the filtrate is reduced after the concentration by the system, the filtrate treatment pressure is reduced, and the loss of product materials is reduced;
sixth: the back washing pipe is arranged, so that the filter element can be back washed by using the filtrate, and water resources are saved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1 is a PLC control system, 2 is a concentration tank, 2.1 is a liquid receiving port, 3 is a balance tank, 3.1 is a filtrate inlet, 3.2 is an overflow port, 3.3 is a liquid discharge port, 3.4 is a liquid discharge pipe, 4 is a suction pump, 4.1 is a liquid inlet, 4.2 is a liquid outlet, 5 is a reaction kettle, 6 is a filtering unit, 6.1 is a filtering element, 6.2 is a back flushing pipe, 6.3 is a liquid discharge pipe, 7 is a regulating valve, 8 is a filtrate valve, 9 is a back flushing valve, 10 is a liquid discharge valve, and 11 is a communication valve.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
A concentration system for producing lithium battery precursor materials mainly comprises a PLC control system 1, a concentration tank 2, a balance tank 3 and a suction filtration pump 4 arranged between the concentration tank 2 and the balance tank 3; the suction filtration pump 4 is connected with the PLC control system 1, the bottom of the concentration tank 2 is connected with the reaction kettle 5, a filtration unit 6 is arranged in the concentration tank 2, and a plurality of filtration elements 6.1 are arranged in the filtration unit 6; the top of the filtering unit 6 is provided with a back flushing pipe 6.2, the bottom of the filtering unit 6 is provided with a liquid outlet pipe 6.3, the liquid outlet pipe 6.3 is connected with a liquid inlet 4.1 of the suction filtering pump 4, the liquid outlet 4.2 of the suction filtering pump 4 is respectively connected with the back flushing pipe 6.2 of the filtering unit 6 and a filtrate inlet 3.1 at the bottom of the balancing tank 3, the upper part of the side wall of the balancing tank 3 is also provided with an overflow port 3.2, the bottom of the side wall is provided with a liquid outlet 3.3, the overflow port 3.2 is connected with a liquid receiving port 2.1 at the upper part of the side wall of the concentrating tank 2, the liquid outlet 3.3 is connected with a liquid outlet pipe 3.4, the liquid outlet pipe 3.4 is also provided with an adjusting valve 7, the adjusting valve 7 is connected with a PLC control system 1, a filtrate valve 8 is also arranged between the liquid outlet 4.2 of the suction filtering pump 4 and the filtrate inlet 3.1 at the bottom of the balancing tank 3, the filtrate valve 8 is connected with, a back washing valve 9 is arranged on the back washing pipe 6.2, the back washing valve 9 is connected with a PLC control system, a liquid outlet valve 10 is arranged on the liquid outlet pipe 6.3, the liquid outlet valve 10 is connected with the PLC control system, a communicating valve 11 is further arranged between the concentration tank 2 and the reaction kettle 5, and the communicating valve 11 is connected with the PLC control system 1. (the connections of the PLC control system 1 to the valves and to the suction pump 4 are not shown in FIG. 1).
The working principle of the system is as follows: a liquid level meter is arranged on a reaction kettle 5 and is connected with a PLC control system 1, continuous feeding is adopted in the reaction kettle 5, the liquid level in the reaction kettle 5 continuously rises along with the continuous feeding reaction, when the specified liquid level is reached, a communication valve 11 is opened, the reaction solution in the reaction kettle 5 enters a concentration tank 2, the liquid level of the reaction solution in the reaction kettle 5 and the concentration tank 2 can reach balance due to the action of gravity, a suction and filtration pump 4 and a liquid outlet valve 10 are controlled by the PLC control system 1 to be opened, the reaction solution is filtered by a filter element 6.1, filtrate is pumped by the suction and filtration pump 4, a filtrate valve 8 is controlled by the PLC control system 1 to be opened, the filtrate enters a balance tank 3, a regulating valve 7 is controlled by the PLC control system 1 to control the discharge of the filtrate and the flow of the discharge of the filtrate so as to control the backflow of the filtrate, and the filtrate can flow back to the concentration tank 2 through an overflow, because concentrated jar 2 is the intercommunication with reation kettle 5, consequently can adjust reation kettle 5 interior reaction solution's concentration, realize the linkage of suction filtration and backward flow through various valves of PLC control system 1 control and suction filtration pump 4. When back washing is needed, the PLC control system 1 controls to close the filtrate valve 8 and open the back washing valve 9 for back washing. The connection of the filter unit 6 and the filter element 6.1 in the present system is prior art for the purpose of filtering the reaction solution and will not be described in detail here.
The present invention is not limited to the above-mentioned embodiments, and various changes can be made by those skilled in the art, and any changes equivalent or similar to the present invention are intended to be covered by the scope of the present invention.
Claims (7)
1. A lithium cell precursor material production is with concentrated system which characterized in that: mainly comprises a PLC control system, a concentration tank, a balance tank and a suction filtration pump arranged between the concentration tank and the balance tank; the suction filtration pump is connected with the PLC control system, the bottom of the concentration tank is connected with the reaction kettle, a filtration unit is arranged in the concentration tank, and a plurality of filtration elements are arranged in the filtration unit; the top of the filtering unit is provided with a back-flushing pipe, the bottom of the filtering unit is provided with a liquid outlet pipe, the liquid outlet pipe is connected with a liquid inlet of the suction filtration pump, and a liquid outlet of the suction filtration pump is respectively connected with the back-flushing pipe of the filtering unit and a filtrate inlet at the bottom of the balance tank.
2. The concentration system for lithium battery precursor material production according to claim 1, wherein: the upper part of the side wall of the balance tank is also provided with an overflow port, the bottom of the side wall of the balance tank is provided with a liquid outlet, the overflow port is connected with a liquid receiving port on the upper part of the side wall of the concentration tank, the liquid outlet is connected with a liquid discharge pipe, the liquid discharge pipe is also provided with an adjusting valve, and the adjusting valve is connected with a PLC control system.
3. The concentration system for lithium battery precursor material production according to claim 1, wherein: and a filtrate valve is also arranged between the liquid outlet of the suction filtration pump and the filtrate inlet at the bottom of the balance tank, and the filtrate valve is connected with the PLC control system.
4. The concentration system for lithium battery precursor material production according to claim 1, wherein: the filter units at least comprise two groups, and the filter elements are filter plates or filter cloth.
5. The concentration system for lithium battery precursor material production according to claim 1, wherein: and a back washing valve is arranged on the back washing pipe and is connected with the PLC control system.
6. The concentration system for lithium battery precursor material production according to claim 1, wherein: and a liquid outlet valve is arranged on the liquid outlet pipe and is connected with the PLC control system.
7. The concentration system for lithium battery precursor material production according to claim 1, wherein: and a communicating valve is also arranged between the concentration tank and the reaction kettle and is connected with a PLC control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920748989.2U CN210206799U (en) | 2019-05-23 | 2019-05-23 | Lithium cell precursor material production is with concentrated system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920748989.2U CN210206799U (en) | 2019-05-23 | 2019-05-23 | Lithium cell precursor material production is with concentrated system |
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| Publication Number | Publication Date |
|---|---|
| CN210206799U true CN210206799U (en) | 2020-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920748989.2U Active CN210206799U (en) | 2019-05-23 | 2019-05-23 | Lithium cell precursor material production is with concentrated system |
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| CN (1) | CN210206799U (en) |
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- 2019-05-23 CN CN201920748989.2U patent/CN210206799U/en active Active
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