Efficient sealing device of electrode paste kneading machine

Abstract

The utility model provides an efficient sealing device of an electrode paste kneading machine. The efficient sealing device comprises a gasket and a sealing piece which is embedded in the gasket and is made of polytetrafluoroethylene. According to the efficient sealing device of the electrode paste kneading machine, the characteristics of high temperature resistance and good extension of polytetrafluoroethylene are utilized, the polytetrafluoroethylene is machined into a sealing piece of a special structure, meanwhile, the gasket is machined into a special structure, the polytetrafluoroethylene is tensioned through the nut, the tensioned polytetrafluoroethylene tightly seals a gap in the position of the shaft hole, and the sealing effect is good. The problem that the binder seeps from the bolt hole of the lining plate of the mixing and kneading pot is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of an electrode paste kneading machine, and in particular to a high-efficiency sealing device of the electrode paste kneading machine. Background Art

[0002] The kneading pot is a widely used device in the carbon industry. During the kneading process of electrode paste, the material temperature is between 150℃-165℃. At this time, the binder is in liquid state and has good fluidity.

[0003] However, the lining of the kneading pot is currently fixed with bolts. Due to the gap between the bolts and the bolt holes, a certain positive pressure will be generated inside the kneading pot during kneading, causing liquid adhesive to seep out of the gap. On the one hand, the seepage of the adhesive will cause waste of raw materials, requiring personnel to clean it regularly, and will also affect the on-site construction standards. Utility Model Content

[0004] The utility model aims to solve the problem in the prior art that there is a gap between the bolts and the bolt holes for fixing the kneading pot liner, and a certain positive pressure is generated inside the kneading pot during kneading, which causes liquid adhesive to seep out of the gap.

[0005] In order to achieve the above-mentioned purpose, the present application proposes an efficient sealing device for an electrode paste kneading machine, which includes a gasket and a sealing member nested in the gasket.

[0006] The specially structured gasket of the present application cooperates with the seal nested in the gasket and is stuck between the lower end face of the bolt head and the lining of the kneading pot. At the same time, the second frustum of the seal is embedded in the lining to further enhance the sealing performance, thereby solving the problem of liquid adhesive leaking from the bolt gap in the prior art.

[0007] As an improvement of the above-mentioned gasket of the present application, in order to enhance the sealing effect that can be achieved by the gasket in combination with the seal, the structure of the gasket is designed, and the gasket includes: a gasket body, a first circular hole-shaped groove coaxially arranged with the gasket body, and a truncated cone-shaped groove.

[0008] Furthermore, in order to better cooperate between the gasket and the seal, the plane of the first circular hole-shaped groove that is away from the end face of the gasket body is connected to the top surface of the truncated cone-shaped groove, and the two are coaxial and congruent.

[0009] Furthermore, in order to allow the gasket to pass through the bolt, the top surface of the first circular hole-shaped groove passes through the upper end surface of the gasket body, and the bottom surface of the frustum-shaped groove passes through the lower end surface of the gasket body.

[0010] As an improvement of the above-mentioned seal of the present application, in order to improve the sealing performance of the seal, the structure of the seal is specially designed, and the seal includes: a first frustum portion, a second frustum portion coaxially connected to the first frustum portion, and a second circular hole-shaped groove passing through the first frustum portion and the second frustum portion.

[0011] Furthermore, in order to better embed the sealing member into the lining plate of the kneading pot, the bottom surface of the first frustum portion is connected to the bottom surface of the second frustum portion.

[0012] Furthermore, in order to improve the sealing performance of the seal and the gasket after they are matched, the angle between the generatrix in the first truncated cone portion and the axis is greater than the angle between the generatrix in the truncated cone groove in the gasket and its axis.

[0013] Furthermore, in order to improve the durability of the sealing member in the use environment limited by the kneading pot, the material of the sealing member is polytetrafluoroethylene.

[0014] The beneficial effects of this application are:

[0015] 1. The efficient sealing device for the electrode paste kneader of the present application utilizes the high-temperature resistance and good ductility of polytetrafluoroethylene to process the polytetrafluoroethylene into a specially structured seal. The gasket is also processed into a special structure. The polytetrafluoroethylene is tensioned by a nut. The tensioned polytetrafluoroethylene tightly seals the gap at the shaft hole, solving the problem of adhesive leakage from the bolt holes of the kneading pot liner.

[0016] 2. The seal of the present application has a larger angle between the busbar and the axis than the angle between the busbar in the conical groove in the gasket and its axis. During the process of tightening the bolt, the distance between the seal and the gasket will gradually decrease. At the same time, the seal moves relative to the gasket in the direction close to the gasket, so that the angle between the busbar in the seal and the axis gradually decreases, further improving the sealing performance of the seal and the gasket after matching. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A cross-sectional view of a gasket in an embodiment of the present application;

[0019] Figure 2 This is a cross-sectional view of a sealing member in an embodiment of the present application;

[0020] Description of reference numerals:

[0021] 1. Gasket; 11. Gasket body; 12. First circular hole-shaped groove; 13. Frustum-shaped groove;

[0022] 2. Sealing member; 21. First truncated cone portion; 22. Second truncated cone portion; 23. Second circular hole-shaped groove. DETAILED DESCRIPTION

[0023] The following will be combined with the Figures 1 and 2 The embodiments of the technical solution of the present application are described in detail. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application. In addition, the technical features involved in the various embodiments of the present application described below may be combined with each other as long as they do not conflict with each other.

[0024] like Figures 1 and 2 The present invention illustrates an efficient sealing device for an electrode paste kneading machine, which includes a gasket 1 and a seal 2. Specifically, the gasket 1 is clamped between the bolt and the bolt hole that fixes the kneading pot liner, and the seal 2 is nested between the gasket 1 and the bolt hole.

[0025] In the prior art, the kneading pot liner is usually fixed only by bolts. Due to the inevitable gap between the bolt holes and the bolts, and the positive pressure generated inside the kneading pot during kneading, liquid adhesive leaks out from the gap. On the one hand, the leakage of adhesive causes waste of raw materials and requires regular cleaning by personnel. At the same time, it also affects the on-site construction standards.

[0026] In this embodiment, the gasket 1 is made of a material that is resistant to high temperatures and has a certain strength to ensure that the stability of the structure can be maintained in a high temperature environment. The specific structure of the gasket 1 includes a gasket body 11, a first circular hole-shaped groove 12 coaxially arranged with the gasket body 11, and a truncated cone-shaped groove 13. The first circular hole-shaped groove 12 is designed to accommodate the head of the bolt, and its top surface passes through the upper end surface of the gasket body 11 to facilitate the passage and fixation of the bolt. The truncated cone-shaped groove 13 is arranged below the first circular hole-shaped groove 12 and is coaxial and equal thereto, and its bottom surface passes through the lower end surface of the gasket body 11 to facilitate a close fit with the seal 2, thereby solving the problem of adhesive leakage caused by the gap between the bolt and the bolt hole in the prior art.

[0027] In one embodiment of the present application, the seal 2 is made of polytetrafluoroethylene as a material. Because of its high temperature resistance, corrosion resistance and good ductility, it is very suitable for use in the sealing environment of the electrode paste kneading machine. The seal 2 includes a first truncated cone portion 21, a second truncated cone portion 22 coaxially connected to the first truncated cone portion 21, and a second circular hole-shaped groove 23 running through the two. The bottom surface of the first truncated cone portion 21 is connected to the bottom surface of the second truncated cone portion 22 to form a continuous and gradually shrinking structure to better embed in the lining of the kneading pot. In particular, the angle between the busbar and the axis in the first truncated cone portion 21 is designed to be greater than the angle between the busbar and the axis in the truncated cone-shaped groove 13 in the gasket 1, so that in the process of tightening the bolts, the seal 2 can be gradually compressed as the bolts are tightened, and the angle between its busbar and the axis gradually decreases, thereby achieving a tighter sealing effect.

[0028] Continue to refer to Figure 1 and Figure 2 In a further embodiment, the gasket 1 is first placed over the bolt hole on the kneading pot liner, with the first circular hole-shaped groove 12 aligned with the bolt head. Subsequently, the seal 2 is inserted into the truncated cone-shaped groove 13 of the gasket 1, ensuring that the second truncated cone portion 22 of the seal 2 can be smoothly embedded in the liner. Finally, the bolt is tightened with a nut. As the bolt is tightened, the seal 2 is subjected to pressure, and its second truncated cone portion 22 is further embedded in the liner. Simultaneously, the first truncated cone portion 21 is gradually compressed and deformed within the truncated cone-shaped groove 13 of the gasket 1. Utilizing the excellent ductility of polytetrafluoroethylene, the gap around the bolt hole is completely sealed, effectively preventing the leakage of the liquid adhesive under high temperature and high pressure.

[0029] In the description of the embodiments of the present application, the orientations or positional relationships indicated by technical terms such as "upper", "lower", "inside" and "outside" are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the embodiments of the present application.

[0030] In the description of the embodiments of this application, unless otherwise specified or limited, technical terms such as "disposed," "equipped with," "connected," and "installed" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integrated connections; they can be directly connected or indirectly connected through an intermediate medium. Those skilled in the art will understand the specific meanings of these terms in the embodiments of this application based on specific circumstances.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An efficient sealing device for an electrode paste kneader, characterized in that: The sealing device comprises: a gasket (1) and a sealing member (2) nested in the gasket (1); The sealing member (2) comprises: a first truncated cone portion (21), a second truncated cone portion (22) coaxially connected to the first truncated cone portion (21), and a second circular hole-shaped groove (23) penetrating the first truncated cone portion (21) and the second truncated cone portion (22); the angle between the generatrix in the first truncated cone portion (21) and the axis is greater than the angle between the generatrix in the truncated cone-shaped groove (13) in the gasket (1) and the axis.

2. The high-efficiency sealing device according to claim 1, characterized in that: The gasket (1) comprises: a gasket body (11), a first circular hole-shaped groove (12) coaxially arranged with the gasket body (11), and a truncated cone-shaped groove (13).

3. The high-efficiency sealing device according to claim 2, characterized in that: The plane of the first circular hole-shaped groove (12) that faces away from the end face of the gasket body (11) is connected to the top face of the truncated cone-shaped groove (13), and the two are coaxial and congruent.

4. The high-efficiency sealing device according to claim 2, characterized in that: The top surface of the first circular hole-shaped groove (12) passes through the upper end surface of the gasket body (11), and the bottom surface of the truncated cone-shaped groove (13) passes through the lower end surface of the gasket body (11).

5. The high-efficiency sealing device according to claim 1, characterized in that: The bottom surface of the first truncated cone portion (21) is connected to the bottom surface of the second truncated cone portion (22).

6. The high-efficiency sealing device according to claim 1, characterized in that: The material of the sealing element (2) is polytetrafluoroethylene.

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