Double-gate-valve mechanism for lithium battery material conveying system

Abstract

The utility model provides a double-gate valve mechanism for a lithium battery material conveying system. The double-gate valve mechanism comprises a blanking barrel (1), an upper gate valve (2) and a lower gate valve (3), the blanking barrel (1) is vertically arranged; the upper gate valve (2) and the lower gate valve (3) are fixedly installed above the feeding end and below the discharging end of the blanking barrel (1) respectively in an opposite arrangement mode, and a blanking port of the upper gate valve (2), an inner cavity of the blanking barrel (1) and a blanking port of the lower gate valve (3) correspond to each other in the vertical direction. The mechanism is simple in structure, low in manufacturing cost and ideal in sealing performance, the working condition of material leakage can be effectively eradicated, and the working condition that the valve plate is stuck can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to lithium battery material conveying technical field, concretely relates to a double plug valve mechanism for lithium battery material conveying system. BACKGROUND

[0002] As the key cutting device in the material conveying system, the plug valve is widely used in metallurgy, chemical industry and other fields in the early stage, and its design is mainly one-way sealing and same direction arrangement. With the rapid rise of lithium battery recycling industry, higher requirements are put forward for the sealing and explosion-proof of the plug valve. Because the recycling material contains irregular impurities such as sheet plastic / metal, the laminated arrangement mode of the traditional same direction plug valve is easy to cause the sealing failure due to the jamming of the material, which may further cause the risk of oxygen infiltration. In recent years, the lithium battery recycling industry tries to optimize by increasing the sealing strip and other ways, but the leakage chain reaction problem of multiple valves in series has not been solved.

[0003] At present, in the lithium battery recycling process, the sealing reliability of the material conveying system will directly affect the safety performance of the whole production line. The traditional plug valve structure widely used in the industry has obvious technical defects, mainly showing the following points:

[0004] (1) Limitation of same direction arrangement: the traditional plug valve adopts a series of same direction arrangement, when processing irregular materials such as sheet plastic, metal scraps, etc., if the upper valve plate is not closed tightly, it may cause continuous leakage. A large number of practical operations show that under typical working conditions, the leakage rate of single-layer valve plate can reach 3-5%, which is completely unacceptable for the lithium battery recycling process which requires strict sealing.

[0005] (2) Safety hazards caused by cumulative effect: because the movement direction of the upper and lower valve plates is the same, the material leaked from the top will directly accumulate on the sealing surface of the lower valve plate. A large number of practical operations show that this cumulative effect can increase the sealing failure probability of the lower valve plate by more than 40%, and in extreme cases it may even cause the valve plate to be stuck.

[0006] (3) Process requirement of oxygen isolation: lithium compounds in the positive material of lithium battery are easy to oxidize in air. A large number of research data show that when the oxygen concentration exceeds 5%, the material temperature may reach 120℃, which may cause combustion. Therefore, the conveying system must have good sealing reliability.

[0007] In order to solve the above problems, it is urgent to provide a double plug valve mechanism with ideal sealing performance, which can effectively prevent leakage and avoid valve plate sticking. SUMMARY

[0008] The utility model provides a double plug valve mechanism for lithium battery material conveying system, which has simple structure, low manufacturing cost, ideal sealing performance, can effectively prevent material leakage and avoid the jamming of the valve plate.

[0009] To achieve the above object, the utility model provides a double plug valve mechanism for lithium battery material conveying system, which comprises a blanking cylinder, an upper plug valve and a lower plug valve.

[0010] The blanking cylinder is vertically arranged.

[0011] The upper plug valve and the lower plug valve are fixedly installed above the feeding end and below the discharging end of the blanking cylinder respectively in an opposite arrangement mode, wherein the blanking port of the upper plug valve, the inner cavity of the blanking cylinder and the blanking port of the lower plug valve correspond to each other in the vertical direction.

[0012] During the closing process of the blanking port of the upper plug valve, the upper plug plate slides laterally from the right side to the left side, and during the closing process of the blanking port of the lower plug valve, the lower plug plate slides laterally from the left side to the right side.

[0013] The inner side wall surface of the blanking cylinder is connected with a wear-resistant lining plate in a close-fitting mode, and an intermediate transition cavity is formed between the upper plug valve, the lower plug valve and the wear-resistant lining plate.

[0014] Further, to ensure the service life, the hardness of the wear-resistant lining plate is HRC60.

[0015] As a preferred, the structure and model of the upper plug valve and the lower plug valve are the same.

[0016] The upper plug plate in the upper plug valve and the lower plug plate in the lower plug valve are driven by hydraulic cylinders.

[0017] In the utility model, the upper plug valve and the lower plug valve are installed at the upper end and the lower end of the blanking cylinder respectively in an opposite arrangement mode, so that the upper plug plate and the lower plug plate run in opposite directions. Thus, the material leakage position of the upper plug valve is staggered with the material leakage position of the lower plug valve in the horizontal direction and is farthest away from each other, so that the material leakage during the closing process of the upper plug plate does not affect the closing process of the lower plug plate, thereby completely blocking the chain reaction of material leakage and effectively improving the sealing performance of the double plug valve closing, thereby realizing the double protection against leakage. Through the arrangement of the intermediate transition cavity, the action time of the upper plug valve and the lower plug valve can be staggered. The upper plug valve is opened first to fill the intermediate transition cavity with material, and then the lower plug valve is opened after the upper plug valve is closed, so that the material is discharged, thereby further improving the overall sealing performance and safety protection.

[0018] The double-inserting plate valve mechanism has simple structure, low manufacturing cost, ideal sealing performance, and can effectively prevent material leakage and valve plate jamming, and fundamentally solves the sealing problem of material conveying in the lithium battery recycling industry, and provides reliable technical support for safety production in the recycling industry. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model.

[0020] In the figure: 1, blanking cylinder, 2, upper inserting plate valve, 3, lower inserting plate valve, 4, upper inserting plate, 5, lower inserting plate, 6, wear-resistant lining plate, 7, intermediate transition cavity. DETAILED DESCRIPTION

[0021] The utility model will be further described below in combination with the drawings.

[0022] As Figure 1 shown, the utility model provides a double-inserting plate valve mechanism for lithium battery material conveying system, including blanking cylinder 1, upper inserting plate valve 2 and lower inserting plate valve 3;

[0023] The blanking cylinder 1 is vertically arranged;

[0024] The upper inserting plate valve 2 and lower inserting plate valve 3 are fixedly installed in the upper of the feed end and the lower of the discharge end of blanking cylinder 1 respectively in the way of opposite arrangement, wherein the blanking port of upper inserting plate valve 2, the inner cavity of blanking cylinder 1 and the blanking port of lower inserting plate valve 3 correspond in vertical direction.

[0025] The upper inserting plate 4 of upper inserting plate valve 2 slides horizontally from right side to left side in the process of closing its blanking port, and the lower inserting plate 5 of lower inserting plate valve 3 slides horizontally from left side to right side in the process of closing its blanking port.

[0026] The inner side wall surface of blanking cylinder 1 is connected with wear-resistant lining plate 6 in close adhesion, and intermediate transition cavity 7 is formed between upper inserting plate valve 2, lower inserting plate valve 3 and wear-resistant lining plate 6.

[0027] In order to ensure service life, the hardness of wear-resistant lining plate 6 is HRC60.

[0028] As a preferred, the structure and model of upper inserting plate valve 2 and lower inserting plate valve 3 are same.

[0029] The upper inserting plate in upper inserting plate valve 2 and the lower inserting plate in lower inserting plate valve 3 are driven by hydraulic cylinder.

[0030] The upper and lower plug valves are arranged in opposite directions and are respectively installed at the upper end and the lower end of the blanking cylinder, so that the upper plug and the lower plug are arranged in opposite directions, the leakage position of the upper plug valve is staggered with the leakage position of the lower plug valve in the horizontal direction, and the distance between them is the farthest, so that the leakage during the closing process of the upper plug does not affect the closing process of the lower plug, thereby completely blocking the chain reaction of leakage and effectively improving the sealing performance of the double plug valve, thereby realizing the double leakage prevention guarantee. Through the setting of the intermediate transition cavity, the action time of the upper plug valve and the lower plug valve can be staggered, the upper plug valve is opened first to fill the intermediate transition cavity with material, and then the lower plug valve is opened after the upper plug valve is closed, so that the material is discharged, thereby further improving the overall sealing performance and safety guarantee.

[0031] The mechanism has simple structure and low manufacturing cost, has ideal sealing performance, can effectively prevent material leakage, can avoid the stuck condition of the valve plate, and can fundamentally solve the sealing problem of material conveying in the lithium battery recycling industry, thereby providing reliable technical support for the safety production of the recycling industry.

[0032] Working process: when the discharging process is started, the upper plug valve 2 is first opened, and the lower plug valve 3 is kept closed, the material enters the intermediate transition cavity 7 through the blanking port of the upper plug valve 2; after a preset time interval, the intermediate transition cavity 7 is filled with material, then the upper plug valve 2 is closed, and at the same time, the lower plug valve 3 is controlled to be opened, so that the material in the intermediate transition cavity 7 enters the next stage buffer bin through the blanking port of the lower plug valve 3.

Claims

1. A double plug valve mechanism for lithium battery material conveying system comprising a blanking cylinder (1), characterized in that, The upper plug valve (2) and the lower plug valve (3) are arranged in a facing manner and are respectively fixedly installed above the feeding end and below the discharging end of the blanking cylinder (1), wherein the blanking port of the upper plug valve (2), the inner cavity of the blanking cylinder (1) and the blanking port of the lower plug valve (3) correspond in the vertical direction. In the process of closing the blanking port of the upper plug valve (2), the upper plug (4) thereof slides laterally from the right side to the left side, and in the process of closing the blanking port of the lower plug valve (3), the lower plug (5) thereof slides laterally from the left side to the right side. The inner side wall surface of the blanking cylinder (1) is connected in close contact with a wear-resistant lining plate (6), and an intermediate transition cavity (7) is formed between the upper plug valve (2), the lower plug valve (3) and the wear-resistant lining plate (6).

2. A double plug valve mechanism for a lithium battery material conveying system according to claim 1, wherein, The hardness of the wear-resistant lining plate (6) is HRC60.

3. A double plug valve mechanism for a lithium battery material conveying system according to claim 1, wherein, The upper plug valve (2) and the lower plug valve (3) are of the same structure and model.

4. A double plug valve mechanism for a lithium battery material conveying system according to claim 3, wherein, The upper plug in the upper plug valve (2) and the lower plug in the lower plug valve (3) are both driven by hydraulic cylinders.

5. A double plug valve mechanism for a lithium battery material conveying system according to claim 1, wherein, ​ 6. A double plug valve mechanism for a lithium battery material conveying system according to claim 1, wherein, ​

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