In-situ online evaluation device for lithium battery anode material liquid-phase treatment water
Technical Field
The utility model relates to the technical field of auxiliary devices for producing battery materials, in particular to an in-situ online evaluation device for liquid-phase treatment water of a lithium battery anode material.
Background
In the liquid phase treatment process of the lithium battery anode material, a coating layer with a special structure is formed on the surface of the anode particle material in a chemical reaction mode, and the coating layer is a new structure and a new substance formed by various specific reagent ions at a certain temperature. The lithium battery anode material with high voltage, high capacity, high multiplying power, high safety and stability can be prepared through the coating treatment; but a large amount of treated water is generated at the same time, the treated water is required to be treated by a sewage equipment system to reach the discharge standard and then discharged, the treatment process period often reaches days or tens of days, a large amount of material resources are occupied, energy and materials are consumed, and the treatment cost is increased sharply under the condition of more and more strict environmental protection.
Therefore, how to reduce the cost of water treatment while ensuring the discharge standard of the treated water is a problem to be solved in the industry.
Disclosure of Invention
The utility model aims to provide an improved in-situ online evaluation device for liquid-phase treatment water of a lithium battery anode material.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model discloses an in-situ online evaluation device for liquid-phase treated water of a lithium battery anode material, which comprises a storage tank body for storing the treated water, wherein the top of the storage tank body is provided with a first feeding port and a second feeding port, the bottom of the storage tank body is provided with a discharging port, and the in-situ online evaluation device also comprises an ion detection system, a control system and a reagent supply system; the ion detection system is used for detecting various ions and the concentration of the ions in the treated water on line, a feed inlet of the ion detection system is communicated with a middle lower part or a bottom pipeline of the storage tank body, a first discharge outlet is communicated with a second feed inlet of the storage tank body, and the ion detection system is in signal connection with the control system; the control system is used for receiving the detection signal of the ion detection system and controlling the reagent supply system to supply corresponding reagent to the storage tank body or controlling the ion detection system and/or the storage tank body to discharge the treated water according to the detection signal and the set threshold value; the reagent supply system comprises a reagent supply main pipe and a plurality of reagent storage containers, one end of the reagent supply main pipe is communicated with the second feed inlet of the storage tank body, and the other end of the reagent supply main pipe is provided with a plurality of interfaces for connecting the reagent storage containers; each reagent storage container is communicated with the reagent supply main pipe through an independent pipeline, and independently controlled pumps are respectively arranged on the pipelines communicated with each reagent storage container and the reagent supply main pipe, and are connected with a control system through signals and are opened or closed according to the signals of the control system.
Wherein, two conditions of discharging the treatment water, for example, after the reagent is supplied by the reagent supply system, each index of the online detection treatment water reaches the recycling condition, the treatment water can be discharged to be directly supplied to the reaction kettle or the reaction device of the anode material; or when the on-line detection of the treated water can not be recycled, directly discharging the treated water to a subsequent sewage treatment system for sewage treatment in the prior art.
In the in-situ online evaluation device for the lithium battery anode material liquid-phase treated water, for example, various ion detection devices represented by ICP (inductively coupled plasma) can be adopted as an ion detection system, and a control system comprises, but is not limited to, a logic module represented by DCS (distributed control system), PLC (programmable logic controller) and the like, and is not particularly limited.
The in-situ online evaluation device for the lithium battery anode material liquid-phase treated water can detect and analyze various ions on line, and supply various ions or corresponding reagents thereof to the treated water in real time according to detection results, so that the treated water can be recycled, the use efficiency of the treated water is increased, and the cost of water treatment is reduced. In addition, the device can monitor the specific ion content range, and indirectly evaluate the coating of new substances on the surface of the anode particle material, so as to be used as an important basis for controlling the material process. For example, the ion detection system provides a quality control basis for the surface coating of the positive electrode particle material according to the detection signal and the set concentration fluctuation range of specific ions, and alarms if the concentration fluctuation range is out of the range.
In the device of the present utility model, the reagent supply system may determine the number of reagent storage containers according to the number of reagents to be added in the reaction or the demand; thus, the end of the reagent supply manifold may be reserved for a plurality of interfaces for connecting reagent storage containers, and is not particularly limited herein.
In one implementation of the utility model, the ion detection system is further provided with a second discharge port for discharging the material.
The ion detection system of the utility model is mainly used for detecting various ions of the treated water in the storage tank body, and when the treated water is detected to have no recycling value, the treated water can be directly discharged through the second discharge port or the discharge port of the storage tank body. Of course, if the treated water also has recycling value, the first discharge port of the ion detection system is utilized to reflux into the storage tank.
In one implementation mode of the utility model, a first pneumatic valve is arranged at a second discharge hole of the ion detection system, and the first pneumatic valve is connected with a control system in a signal manner and is opened or closed according to the signal of the control system.
In one implementation mode of the utility model, a second pneumatic valve is arranged on a pipeline, wherein the pipeline is communicated with a first discharge port of the ion detection system and a second feed port of the storage tank body, and the second pneumatic valve is connected with a control system through signals and is opened or closed according to the signals of the control system.
In one implementation mode of the utility model, a third pneumatic valve is arranged on a pipeline which is communicated with the second feed inlet of the storage tank body and is connected with the control system in a signal manner, and the third pneumatic valve is opened or closed according to the signal of the control system.
In one implementation mode of the utility model, a fourth pneumatic valve is arranged on the feed opening at the bottom of the storage tank body.
It should be noted that, the key point of the present utility model is the design and improvement of the ion detection system, the control system, the reagent supply system, etc., and as for other storage tank structures, such as a driving motor, a stirring device, etc., which are not mentioned, reference may be made to the existing storage tank or the reaction kettle, and no specific limitation is made herein.
Due to the adoption of the technical scheme, the utility model has the beneficial effects that:
according to the in-situ online evaluation device for the lithium battery anode material liquid-phase treated water, disclosed by the utility model, the treated water is subjected to online test through the ion detection system to evaluate various ion states, and the required reaction reagent is added through the reagent supply system, so that the treated water can be recycled, the use efficiency of the treated water is improved, and the cost of water treatment is reduced.
Drawings
Fig. 1 is a schematic structural diagram of an in-situ online evaluation device for lithium battery anode material liquid-phase treatment water in an embodiment of the utility model.
Detailed Description
The research of the utility model discovers that the existing treated water is directly treated by sewage after one-time reaction, which not only can generate a great deal of sewage, but also greatly consumes energy and material resources. Therefore, the utility model creatively proposes that if the treated water can be recycled, the use efficiency of the treated water can be greatly improved, the number and the amount of sewage treatment carried out on the treated water can be reduced within a period of time, and the consumption of energy and materials can be reduced, thereby reducing the cost of water treatment.
Based on the research and the knowledge, the utility model creatively provides an in-situ on-line evaluation for the treated water, and supplies corresponding reagents according to the evaluation result, so that the treated water can be recycled. Specifically, the utility model develops an in-situ online evaluation device for liquid-phase treatment water of a lithium battery anode material, which comprises a storage tank body for storing the treatment water, wherein the top of the storage tank body is provided with a first feeding port and a second feeding port, the bottom of the storage tank body is provided with a discharging port, and the in-situ online evaluation device also comprises an ion detection system, a control system and a reagent supply system; the feeding port of the ion detection system is communicated with the middle lower part or the bottom pipeline of the storage tank body, the first discharging port is communicated with the second feeding port of the storage tank body, and the ion detection system is in signal connection with the control system; the control system is used for receiving detection signals of the ion detection system, controlling the reagent supply system to supply corresponding reagents to the storage tank body according to the detection signals and the set threshold value, or controlling the ion detection system and/or the storage tank body to discharge treated water; the reagent supply system comprises a reagent supply main pipe and a plurality of reagent storage containers, one end of the reagent supply main pipe is communicated with the second feed inlet of the storage tank body, and the other end of the reagent supply main pipe is provided with a plurality of interfaces for connecting the reagent storage containers; each reagent storage container is communicated with the reagent supply main pipe through an independent pipeline, independent control pumps are respectively arranged on the pipelines communicated with each reagent storage container and the reagent supply main pipe, the pumps are connected with a control system through signals, and the pumps are opened or closed according to the signals of the control system.
The in-situ online evaluation device for the lithium battery anode material liquid-phase treated water can detect and analyze various ions on line, and supply various ions or corresponding reagents thereof to the treated water in real time according to detection results, so that the treated water can be recycled, the use efficiency of the treated water is improved, and the cost of water treatment is reduced.
The utility model will be described in further detail below with reference to the drawings by means of specific embodiments. The following examples are merely illustrative of the present utility model and should not be construed as limiting the utility model.
Examples
The lithium battery anode material liquid phase treatment water in-situ on-line evaluation device comprises a storage tank body 1, wherein the storage tank body 1 is provided with a first feeding port 2 and a second feeding port 7 at the top, a discharging port 3 is arranged at the bottom, a fourth pneumatic valve 31 is arranged on the discharging port 3, a stirring device 8 is arranged in the storage tank body 1, the stirring device 8 is driven by a motor 9, and the motor 9 is arranged at the top of the storage tank body 1 through a motor bracket 10.
In the improvement scheme of the embodiment, the in-situ online evaluation device for the lithium battery anode material liquid-phase treatment water also comprises an ion detection system 4, a control system 5 and a reagent supply system 6; the feed inlet 41 of the ion detection system 4 is communicated with a middle lower pipeline of the storage tank body 1, the first discharge outlet 42 is communicated with the second feed inlet 7 of the storage tank body 1, and the ion detection system 4 is in signal connection with the control system 5. The control system 5 is configured to receive the detection signal of the ion detection system 4, and, based on the detection signal and the set threshold value, control the reagent supply system 6 to supply the corresponding reagent to the storage tank 1, or control the ion detection system 4 and/or the storage tank 1 to drain the treated water. The reagent supply system 6 comprises a reagent supply manifold 61 and a plurality of reagent storage containers 62, wherein one end of the reagent supply manifold 61 is communicated with the second feed inlet 7 of the storage tank body 1, and the other end is provided with a plurality of interfaces for connecting the reagent storage containers 62. Wherein each reagent storage container 62 communicates with the reagent supply manifold 61 through an independent pipe, and independently controlled pumps 63 are respectively provided on the pipes in which each reagent storage container 62 communicates with the reagent supply manifold 61, and the pumps 63 are connected with the control system 5 by signals, and are turned on or off according to the signals of the control system 5.
Further, the ion detection system 4 is further provided with a second discharge port 43 for discharging the material. The second discharging hole 43 is provided with a first pneumatic valve 44, and the first pneumatic valve 44 is connected with the control system 5 in a signal manner and is opened or closed according to the signal of the control system 5.
Further, a second pneumatic valve 45 is arranged on a pipeline, which is communicated with the first discharge port 42 of the ion detection system 4 and the second feed port 7 of the storage tank body 1, and the second pneumatic valve 45 is connected with the control system 5 in a signal manner, and is opened or closed according to the signal of the control system 5.
Further, a third pneumatic valve 64 is arranged on a pipeline of the reagent supply main pipe 61 communicated with the second feed inlet 7 of the storage tank body 1, the third pneumatic valve 64 is connected with the control system 5 in a signal manner, and the third pneumatic valve 64 is opened or closed according to the signal of the control system 5.
In-situ online evaluation device for lithium battery anode material liquid-phase treatment water, when in use, the first pneumatic valve 44, the second pneumatic valve 45, the third pneumatic valve 64 and the fourth pneumatic valve 31 are all in a closed state; the treated water enters the ion detection system 4 from the storage tank 1 through the feed port 41 of the ion detection system 4 under the drive of the ion detection system 4, and the states of the ions are detected.
According to the detection result of each ion, if the treated water can be recycled by supplying corresponding ions or reagents, the second pneumatic valve 45 is opened, and the treated water flows back into the storage tank 1 through the second feed inlet 7 of the storage tank 1; at the same time, the control system 5 controls the third pneumatic valve 64 to be opened, controls the corresponding pump 63 of the corresponding reagent storage container 62 to be opened, supplies corresponding reagent into the storage tank 1, and starts the motor 9 to drive the stirring device 8 to stir and mix the treated water in the storage tank 1 until the treated water can be recycled, and then closes the pump 63 and the third pneumatic valve 64. In this case, the treated water may be discharged and directly supplied to the reaction vessel or the reaction device of the positive electrode material.
According to the detection result of each ion, if the treated water is not reused after a plurality of times of cyclic use, the second pneumatic valve 45 and the third pneumatic valve 64 are closed, and only the first pneumatic valve 44 and/or the fourth pneumatic valve 31 are opened to discharge the treated water.
The treatment water can be discharged at different positions when the treatment water satisfies the recycling condition and the treatment water cannot be recycled, for example, (1) when the treatment water is detected to be not recycled, the fourth pneumatic valve 31 is only opened, and the treatment water is discharged to the subsequent sewage treatment system through the feed opening 3 of the storage tank body 1; (2) When it is detected that the treated water satisfies the recycling condition after being supplied with the reagent, only the first air valve 44 may be opened, and the treated water may be directly supplied to the reaction kettle or the reaction apparatus for the liquid-phase treatment of the positive electrode material through the second discharge port 43 of the ion detection system 4.
In addition, the in-situ online evaluation device of the lithium battery anode material liquid-phase treatment water can also be used for detecting and monitoring the concentration of specific ions in real time, and indirectly evaluating the coating of new substances on the surface of the anode particle material, and can be used as a reference basis for material process control. Specifically, the ion detection system alarms according to the detection signal and the set concentration fluctuation range of specific ions if the concentration fluctuation range is out of the range, and provides a quality control basis for coating the surface of the positive electrode particle material.
The foregoing description of the utility model has been presented for purposes of illustration and description, and is not intended to be limiting. Several simple deductions, modifications or substitutions may also be made by a person skilled in the art to which the utility model pertains, based on the idea of the utility model.