Waste liquid treatment device and system of electrolyte key material

Abstract

The utility model provides a waste liquid treatment device and system for an electrolyte key material, and relates to the technical field of waste liquid treatment. The reactor and the transparent protective shell are arranged to form dual protection, so that the possibility of leakage of waste gas decomposed from waste liquid is greatly reduced. In addition, the reactor is a titanium shell, the titanium shell is resistant to high temperature, acid and alkali and not prone to being corroded by a solution, it is guaranteed that the waste liquid treatment process is safely carried out, and meanwhile the treatment process is free of pollution to the environment. According to the device, the waste liquid is subjected to aftertreatment, reaction materials are added from the reaction material inlet pipe, then the reaction materials react with the waste liquid, after toxic and harmful substances are decomposed, a generated gas phase is exhausted to corresponding equipment through the exhaust pipe for gas absorption and purification, and the waste liquid is subjected to harmless treatment; and the waste liquid treatment process is safer, more efficient and more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of waste liquid treatment, in particular to a waste liquid treatment device and system for key electrolyte materials. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloys as the negative electrode material and a non-aqueous electrolyte solution. With the development of the times, lithium-ion batteries are gaining increasing attention in the new energy field due to their energy-saving and environmentally friendly properties. Currently, lithium batteries are widely used in various industries and play a vital role in modern industry.

[0003] However, the battery manufacturing process inevitably produces some waste liquids, which contain a large amount of hazardous substances. These substances are less stable in air and, upon contact with moisture and oxygen in the air, produce toxic and harmful gases. Furthermore, some waste liquids are highly corrosive to equipment, and conventional containers are prone to corrosion, deformation, or damage, causing waste liquid overflow and the release of toxic and harmful gases, posing a safety hazard.

[0004] If these waste liquids are sent to a specialized hazardous waste treatment plant for treatment, it will increase production costs significantly. If the waste liquid leaks during transportation, it will also lead to very serious consequences. If the waste liquid is harmlessly treated at the back end of the battery preparation process, there may also be a risk of leakage, which will cause great harm to operators or staff and may also cause environmental pollution.

[0005] In view of this, the present utility model is proposed. Utility Model Content

[0006] The purpose of the utility model is to provide a waste liquid treatment device and system for key electrolyte materials, which can realize sealed treatment of waste liquid, ensure the reliability of the device, and prevent leakage and deformation.

[0007] The embodiment of the present utility model is achieved as follows:

[0008] In a first aspect, the utility model provides a waste liquid treatment device for key electrolyte materials, comprising a reactor and a transparent protective shell, wherein the reactor is arranged in the transparent protective shell.

[0009] The reactor comprises a titanium shell, a reaction chamber is formed inside the titanium shell, and a waste liquid inlet pipe, a waste liquid outlet pipe, a reaction material inlet pipe and an exhaust pipe connected with the reaction chamber are arranged on the titanium shell.

[0010] A transparent window is also provided on the titanium shell, and the transparent window is configured to observe the situation inside the reaction chamber.

[0011] The reactor also includes a stirring component. A stirring component mounting tube is provided on the titanium shell. The stirring component is accommodated in the reaction chamber and extends from the stirring component mounting tube to the outside of the titanium shell.

[0012] The transparent protective shell is provided with openings corresponding to the exhaust pipe and the stirring assembly installation pipe. The exhaust pipe and the stirring assembly installation pipe both extend out of the transparent protective shell and are sealed and connected to the transparent protective shell.

[0013] The transparent protective shell is provided with selectively openable sealing covers at positions corresponding to the reaction material inlet pipe, the waste liquid inlet pipe and the waste liquid outlet pipe.

[0014] In an optional embodiment, the wall thickness of the titanium shell is 2-3 mm.

[0015] In an optional embodiment, the volume of the titanium shell is 50-500 L, the length of the titanium shell is 300-1000 mm, the width is 200-700 mm, and the height is 400-800 mm.

[0016] In an optional embodiment, a liquid level meter is further included, and the liquid level meter is disposed in the titanium housing.

[0017] In an optional embodiment, a filter element is further included, and the filter element is fixedly installed at one end of the waste liquid outlet pipe close to the reaction chamber.

[0018] In an optional embodiment, one end of the waste liquid inlet pipe located in the titanium shell is a soft rotary elbow.

[0019] In an optional embodiment, there are two reaction material inlet pipes, namely a pH regulator inlet pipe and an oxidant inlet pipe.

[0020] In an optional embodiment, the exhaust pipe is located at the top of the titanium shell, and the axis of the stirring assembly is parallel to the axis of the exhaust pipe; the waste liquid inlet pipe and the waste liquid outlet pipe are both arranged on the side of the titanium shell, and the waste liquid inlet pipe is located above the waste liquid outlet pipe; the transparent window is also arranged on the side of the titanium shell.

[0021] In an optional embodiment, a bracket is further included, which is disposed in the transparent protective shell, and the bottom of the titanium shell is fixed on the bracket.

[0022] In a second aspect, the utility model provides a waste liquid treatment system for key electrolyte materials, comprising a waste gas treatment device and a device as described in any one of the aforementioned embodiments, wherein the waste gas treatment device is connected to an exhaust pipe through a pipeline.

[0023] The beneficial effects of the embodiments of the present utility model are:

[0024] The utility model provides a waste liquid treatment device and system for key electrolyte materials. By setting up a reactor and a transparent protective shell, the two form a double protection, which greatly reduces the possibility of leakage of waste gas decomposed from the waste liquid. In addition, the reactor is a titanium shell, which is resistant to high temperature, acid and alkali, and not easily corroded by the solution, ensuring that the waste liquid treatment process can proceed smoothly. The device performs post-treatment on the waste liquid, adds the reaction material from the reaction material inlet pipe, and then reacts the reaction material with the waste liquid, oxidizes the toxic and harmful substances and decomposes some gases, which are then discharged through the exhaust pipe to the corresponding equipment for gas absorption and purification, and the waste liquid is harmlessly treated, making the waste liquid treatment process safer, more efficient and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 A cross-sectional view of a reactor and a structure connected thereto provided in an embodiment of the present utility model;

[0027] Figure 2 A schematic structural diagram of a waste liquid treatment device for key electrolyte materials provided in an embodiment of the present utility model.

[0028] Icons: 100-Waste liquid treatment device for key electrolyte materials; 110-Reactor; 111-Waste liquid inlet pipe; 112-Waste liquid outlet pipe; 113-Exhaust pipe; 114-pH adjuster inlet pipe; 115-Oxidant inlet pipe; 116-Transparent window; 117-Stirring assembly; 118-Stirring assembly mounting pipe; 119-Rotary elbow; 120-Transparent protective shell; 121-Sealing cover; 130-Liquid level gauge; 140-Filter element; 150-Bracket. DETAILED DESCRIPTION

[0029] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0032] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] Furthermore, terms such as "horizontal" and "vertical" do not necessarily mean that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0034] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0035] Please refer to Figure 1 and Figure 2 This embodiment provides a waste liquid treatment device 100 for key electrolyte materials, which includes a reactor 110 and a transparent protective shell 120 , and the reactor 110 is disposed in the transparent protective shell 120 .

[0036] Among them, the key electrolyte material is sulfide solid electrolyte, and its corresponding waste liquid is sulfide and reducing agent, etc.

[0037] In this embodiment, the transparent protective shell 120 has a size of 1500 mm*800 mm*1200 mm and is made of acrylic.

[0038] The reactor 110 has a volume of 200 L and dimensions of 750 mm * 450 mm * 600 mm. Since the waste liquid will generate gas during the treatment process, which may cause pressure changes in the reactor 110, the wall thickness of the reactor 110 is 3 mm to meet the pressure range.

[0039] The parameters of the reactor 110 and the transparent protective shell 120 can be increased or decreased according to the amount of waste liquid to be treated, as long as the reactor 110 can be arranged in the transparent protective shell 120 and the other structural designs on the reactor 110 and the transparent protective shell 120 meet the requirements.

[0040] Reactor 110 includes a titanium shell. Titanium is resistant to high temperatures and corrosion, preventing the reactor 110 from being deformed or even broken by wastewater corrosion. Controlling the wall thickness of reactor 110 ensures that reactor 110 can safely and stably process wastewater.

[0041] A reaction chamber is formed inside the titanium shell, and the reaction chamber is used for preliminary separation of waste liquid. In this embodiment, the waste liquid is separated in the reaction chamber to obtain gas containing a large amount of toxic and harmful substances and liquid containing almost no toxic and harmful substances.

[0042] The titanium shell is provided with a waste liquid inlet pipe 111, a waste liquid outlet pipe 112, a reaction material inlet pipe and an exhaust pipe 113 which are connected to the reaction chamber.

[0043] In this embodiment, exhaust pipe 113 is located at the top center of the titanium housing and is configured to communicate with the exhaust gas treatment device, transporting toxic and harmful exhaust gases from the reaction chamber to the exhaust gas treatment device for treatment. In this embodiment, exhaust pipe 113 has a diameter of 80 mm and extends 250 mm from the titanium housing. Exhaust pipe 113 can be made of titanium or zirconium.

[0044] In this embodiment, the waste liquid inlet pipe 111 and the waste liquid outlet pipe 112 are both arranged on the side of the titanium shell. In order to facilitate the safe discharge of waste liquid, the waste liquid inlet pipe 111 is located above the waste liquid outlet pipe 112, and the waste liquid outlet pipe 112 is located at one end close to the bottom of the titanium shell.

[0045] In this embodiment, the waste liquid inlet pipe 111 is set at the side 250mm away from the top of the titanium shell, and the interface is a pagoda joint. In other embodiments, the waste liquid inlet pipe 111 can also be set at other positions as long as the function of inputting waste liquid can be achieved.

[0046] In this embodiment, the materials reacting with the waste liquid include alkali solution and oxidant. Therefore, there are two reaction material inlet pipes, namely the pH regulator inlet pipe 114 and the oxidant inlet pipe 115.

[0047] In this embodiment, the pH regulator inlet pipe 114 and the oxidant inlet pipe 115 are both arranged on the top surface of the titanium shell, and the distance between them is 100 mm. The inner diameters of the pH regulator inlet pipe 114 and the oxidant inlet pipe 115 are both 30 mm.

[0048] In other embodiments, the number, location and size of the reaction material inlet pipes can be designed according to the needs of the waste liquid reaction.

[0049] The titanium housing is also provided with a transparent window 116, which is configured to observe the conditions within the reaction chamber. Through the transparent protective housing 120 and the transparent window 116, the status of the waste liquid in the reaction chamber, such as the liquid level and the reaction stage, can be directly observed to confirm whether the device requires further operation.

[0050] In this embodiment, the transparent window 116 is also provided on the side of the titanium housing and is made of quartz. In other embodiments, the transparent window 116 can also be provided at other locations on the titanium housing and made of any existing transparent material, as long as the reaction process of the device can proceed smoothly.

[0051] The reactor 110 further includes a stirring assembly 117 . A stirring assembly mounting tube 118 is provided on the titanium shell. The stirring assembly 117 is accommodated in the reaction chamber and extends from the stirring assembly mounting tube 118 to the outside of the titanium shell.

[0052] In this embodiment, the axis of the stirring assembly 117 is parallel to the axis of the exhaust pipe 113 .

[0053] The stirring assembly 117 can adopt an existing structure with a stirring function, for example, including a handle and a stirring part connected to each other, the stirring part is accommodated in the reaction chamber, and the handle extends outside the titanium shell to facilitate the operator to control the stirring process.

[0054] In this embodiment, the stirring assembly mounting tube 118 protrudes 300 mm from the surface of the titanium shell.

[0055] The reaction process in the reaction chamber is observed through the transparent window 116 , and then the handle is operated to cause the stirring part to stir the material in the reaction chamber to allow the material to react fully.

[0056] Furthermore, in order to provide double insurance for the waste liquid treatment process and facilitate the output of waste gas, the transparent protective shell 120 is provided with openings corresponding to the exhaust pipe 113 and the stirring assembly mounting pipe 118. The exhaust pipe 113 and the stirring assembly mounting pipe 118 both extend out of the transparent protective shell 120 and are sealed with the transparent protective shell 120.

[0057] The transparent protective shell 120 is provided with selectively openable sealing covers 121 corresponding to the reaction material inlet pipe, waste liquid inlet pipe 111 and waste liquid outlet pipe 112. When the corresponding materials need to be added or discharged, the sealing covers 121 are opened for adding materials, and the sealing covers 121 are closed at other times.

[0058] In this embodiment, a liquid level meter 130 is further included. The liquid level meter 130 is disposed in the titanium housing and can be connected to an existing control unit to display the liquid level in the reaction chamber.

[0059] In this embodiment, a filter element 140 is also included. The filter element 140 is fixedly installed at one end of the waste liquid outlet pipe 112 close to the reaction chamber. When the waste liquid is discharged after treatment, it can intercept waste residue to prevent solid waste from entering the sewer, and at the same time prevent waste residue from entering the waste liquid outlet pipe 112 and blocking the waste liquid outlet pipe 112.

[0060] In this embodiment, the filter element 140 can be set to a retractable type. When the reactor waste accumulates to a certain level (for example, the solid phase accounts for 1 / 4), the filter element 140 can be retracted, and the solution and waste can be discharged together into the filtration system (for example, filter press and other filtration equipment), and the waste can be collected and treated as solid waste.

[0061] In this embodiment, to facilitate confirmation of the waste liquid feeding progress and prevent contact between the stirring assembly 117 and the rotating elbow 119, one end of the waste liquid inlet pipe 111 located within the titanium shell is a soft rotating elbow 119. The soft rotating elbow 119 facilitates telescopic and rotational adjustment of the position of the waste liquid inlet pipe 111 to ensure that the rotating elbow 119 always remains below the liquid level. The waste liquid inlet pipe 111 can drive the rotating elbow 119 to rotate, preventing contact between the stirring assembly 117 and the rotating elbow 119. The design of the rotating elbow 119 also allows the length of the rotating elbow 119 to be adjusted when the waste liquid enters the titanium shell, ensuring that the rotating elbow 119 is below the liquid level.

[0062] In this embodiment, a bracket 150 is further included. The bracket 150 is disposed in the transparent protective shell 120 , and the bottom of the titanium shell is fixed on the bracket 150 .

[0063] Furthermore, in other embodiments of the present invention, a waste liquid treatment system for key electrolyte materials is provided, comprising a waste gas treatment device and the above-mentioned waste liquid treatment device 100 for key electrolyte materials, wherein the waste gas treatment device is connected to the exhaust pipe 113 through a pipeline.

[0064] The present invention provides a waste liquid treatment device 100 and system for key electrolyte materials, and its working principle is as follows:

[0065] The waste liquid generated during the lithium battery production process is transported to the reaction chamber of the reactor 110 through the waste liquid inlet pipe 111 and the rotating elbow 119, and the rotating elbow 119 is adjusted to extend below the liquid surface.

[0066] After the waste liquid is added, alkali solution is added through the pH adjuster inlet pipe 114, and then the oxidant is added through the oxidant inlet pipe 115. During the addition of the alkali solution and the oxidant, the stirring assembly 117 is operated to fully stir the materials in the reaction chamber, and the reaction of the waste liquid is observed through the transparent window 116.

[0067] For example, when adding alkali solution, stirring assembly 117 is manually controlled to rotate the solution and mix it with the alkali solution, allowing the alkali solution to quickly absorb the acidic gases in the waste liquid. Then, when adding the oxidizing agent, stirring assembly 117 is manually controlled to rotate the solution and react evenly with the oxidizing solution, while removing the large amount of heat energy and waste gas generated during the reaction. The reaction of the materials is observed through transparent window 116, and the stirring speed of stirring assembly 117 is controlled accordingly. The speed can be controlled to a low speed at the beginning and end of the reaction, and to a medium speed when the solution reacts vigorously. The length of stirring assembly 117 is also adjusted according to the liquid level. The waste gas generated during the reaction is transported through exhaust pipe 113 to the waste gas treatment device for treatment. For example, the waste gas treatment device can spray, absorb alkali, neutralize, and other processes to harmlessly treat the harmful gases generated.

[0068] The present invention provides a waste liquid treatment device 100 and system for treating key electrolyte materials, which have at least the following advantages:

[0069] 1. This device utilizes a stirring assembly 117 to ensure uniform solution reaction. Combined with the exhaust pipe 113 and waste gas treatment device, this device can promptly absorb and discharge waste gas generated by the reaction. Rapid expansion of the reaction chamber and overflow of waste liquid are unlikely to occur. This also prevents dangerous accidents such as deformation of the device caused by pressure changes within the device. This device is highly safe, simple to operate, and offers excellent economic benefits.

[0070] 2. The reaction conditions in the reaction chamber can be observed through the transparent window 116, and the delivery and discharge of waste liquid, the delivery of waste gas and the addition process of reaction materials can be reasonably regulated. The waste liquid treatment process is fully adjustable and can be applied to waste liquid treatment in various states.

[0071] 3. By using titanium as the main material of the reactor 110, its high temperature resistance and acid and alkali resistance make it safer to use and will not be corroded by waste liquid with low acidity, causing the accessories to fall off.

[0072] 4. A transparent protective shell 120 is further provided on the outer surface of the reactor 110 as a second safeguard for waste liquid treatment. Even if the reactor 110 accidentally leaks or is damaged, the sealing effect of the transparent protective shell 120 will not cause the operator to be directly exposed to a dangerous environment, thereby ensuring the safety of the operator and staff.

[0073] 5. The device can treat waste liquid and waste gas harmlessly, reduce external emissions, and is more environmentally friendly.

[0074] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A waste liquid treatment device for key electrolyte materials, characterized in that: It comprises a reactor and a transparent protective shell, wherein the reactor is arranged in the transparent protective shell; The reactor comprises a titanium shell, a reaction chamber is formed inside the titanium shell, and a waste liquid inlet pipe, a waste liquid outlet pipe, a reaction material inlet pipe and an exhaust pipe connected to the reaction chamber are provided on the titanium shell; The titanium shell is also provided with a transparent window, which is configured to observe the situation inside the reaction chamber; The reactor further includes a stirring assembly. A stirring assembly mounting tube is provided on the titanium shell. The stirring assembly is accommodated in the reaction chamber and extends from the stirring assembly mounting tube to the outside of the titanium shell. The transparent protective shell is provided with openings corresponding to the exhaust pipe and the stirring assembly mounting tube. The exhaust pipe and the stirring assembly mounting tube both extend out of the transparent protective shell and are sealed to the transparent protective shell. The transparent protective shell is provided with selectively openable sealing covers corresponding to the reaction material inlet pipe, the waste liquid inlet pipe and the waste liquid outlet pipe.

2. The device according to claim 1, characterized in that The wall thickness of the titanium shell is 2 to 3 mm.

3. The device according to claim 2, characterized in that The volume of the titanium shell is 50-500L, the length of the titanium shell is 300-1000mm, the width is 200-700mm, and the height is 400-800mm.

4. The device according to claim 1, characterized in that It also includes a liquid level meter, which is arranged in the titanium shell.

5. The device according to claim 1, characterized in that It also includes a filter element, which is fixedly installed on one end of the waste liquid outlet pipe close to the reaction chamber.

6. The device according to claim 1, characterized in that One end of the waste liquid inlet pipe located in the titanium shell is a soft rotary elbow.

7. The device according to claim 1, characterized in that There are two reaction material inlet pipes, namely a pH regulator inlet pipe and an oxidant inlet pipe.

8. The device according to any one of claims 2 to 7, characterized in that: The exhaust pipe is located at the top of the titanium shell, and the axis of the stirring assembly is parallel to the axis of the exhaust pipe; the waste liquid inlet pipe and the waste liquid outlet pipe are both arranged on the side of the titanium shell, and the waste liquid inlet pipe is located above the waste liquid outlet pipe; the transparent window is also arranged on the side of the titanium shell.

9. The device according to claim 8, characterized in that It also includes a bracket, which is arranged in the transparent protective shell, and the bottom of the titanium shell is fixed on the bracket.

10. A waste liquid treatment system for key electrolyte materials, characterized in that: It comprises an exhaust gas treatment device and the device according to any one of claims 1 to 9, wherein the exhaust gas treatment device is connected to the exhaust pipe through a pipeline.

Images