Airtight gate

Abstract

The utility model relates to the field of machinery, in particular to an air-tight gate which comprises a shell, an air-tight gate body and an air-tight gate body. The double-layer static sealing frame is arranged in the shell, the outer side of the double-layer static sealing frame is fixedly connected with the front inner surface and the rear inner surface of the shell in a sealed mode, a wedge-shaped interlayer space is formed in the middle of the double-layer static sealing frame, and the wedge-shaped interlayer space is communicated with the material channel; and the movable sealing piece is arranged in the shell, is wedge-shaped, is arranged in a wedge-shaped interlayer space and is propped against the double-layer static sealing frame in a relatively sliding manner. Compared with a traditional design that a gate is driven by a hinge, the airtight gate provided by the embodiment realizes opening and closing of the gate channel through the wedge-shaped movable sealing piece and the wedge-shaped double-layer static sealing frame, has certain self-cleaning capability, is not easy to deform, is more reliable in operation, and is good in airtightness.

Description

Technical Field

[0001] The utility model relates to the field of mechanical gate design, and in particular to the design of an airtight gate. Background Art

[0002] In the production process of vanadium-nitrogen alloy, since the crucible needs to enter and exit the push-plate kiln, there are inlets and outlets at the kiln head and kiln tail. In order to reduce the heat loss in the kiln during the process of the crucible entering and exiting, as well as the energy consumption and product quality problems caused by air intrusion, it is necessary to set gates with certain airtight performance at the kiln head and kiln tail. The traditional gate adopts a hinge design, which has the following problems in actual use:

[0003] First, due to space limitations, the hinge mechanism is designed to be small in size, which can easily cause deformation during use, resulting in poor air tightness of the gate;

[0004] Secondly, the potassium and sodium vapors in the kiln will crystallize inside the hinge, causing the gate to move poorly. It is also easy for the gate to not close properly, resulting in poor airtightness. Utility Model Content

[0005] In order to improve the reliability and airtightness of the gate operation, the utility model proposes an airtight gate, comprising: an airtight gate, comprising: a shell, on which is provided a material channel running through the front and rear surfaces of the shell; a double-layer static sealing frame arranged inside the shell, the outer sides of the double-layer static sealing frame are respectively sealed and fixedly connected to the front and rear inner surfaces of the shell, and a wedge-shaped interlayer space is formed in the middle of the double-layer static sealing frame, and the wedge-shaped interlayer space is connected to the material channel; a dynamic seal arranged inside the shell, the dynamic seal is wedge-shaped, arranged in the wedge-shaped interlayer space and abutted with the double-layer static sealing frame for relative sliding.

[0006] In one or more embodiments, the airtight gate of the utility model further includes: a hydraulic mechanism fixedly mounted on the upper surface of the shell, wherein a hydraulic transmission rod of the hydraulic mechanism passes through the upper surface of the shell and is detachably connected to the dynamic seal.

[0007] In one or more embodiments, the left and right surfaces of the shell are also provided with inspection ports and slag ports.

[0008] In one or more embodiments, a reinforcement member is provided at the opening of the material channel.

[0009] In one or more embodiments, the side surface of the double-layer static sealing frame is in the shape of a right-angle trapezoid, which is narrow at the top and wide at the bottom to form a wedge-shaped sliding surface.

[0010] In one or more embodiments, the dynamic seal comprises: a wedge-shaped bracket; and dynamic sealing plates disposed on both sides of the wedge-shaped bracket, wherein the area of ​​the dynamic sealing plates is larger than the area of ​​the area enclosed by the double-layer static sealing frame.

[0011] In one or more embodiments, the wedge-shaped bracket is provided with a plurality of through holes penetrating the front and rear surfaces of the wedge-shaped bracket.

[0012] In one or more embodiments, the dynamic sealing plate is connected to the wedge-shaped bracket via a bolt gap, and the dynamic sealing plate can move slightly relative to the wedge-shaped bracket.

[0013] In one or more embodiments, the airtight gate of the utility model further includes: an elastic member disposed in the through hole, wherein the elastic member is elastically abutted against dynamic sealing plates disposed on both sides of the wedge-shaped bracket.

[0014] In one or more embodiments, the elastic member includes: a spring or a spring.

[0015] The beneficial effects of the utility model include: compared with the traditional hinge-driven gate design, the airtight gate proposed in the utility model realizes the opening and closing of the gate channel through a wedge-shaped dynamic seal and a wedge-shaped double-layer static sealing frame, has a certain self-cleaning ability, is not easy to deform, and makes its operation more reliable and has good airtightness. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other embodiments can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic structural diagram of an airtight gate embodiment of an embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of a complete shell structure of an airtight gate embodiment of an embodiment of the utility model;

[0019] Figure 3 It is a side structural schematic diagram of a dynamic seal of an airtight gate according to an embodiment of the utility model;

[0020] Figure 4 It is a front view structural schematic diagram of a wedge-shaped bracket embodiment of an airtight gate according to one embodiment of the utility model;

[0021] Figure 5The figure is a side structural schematic diagram of a wedge-shaped bracket embodiment of an airtight gate according to one embodiment of the utility model.

[0022] The meanings of the reference numerals in the above drawings are as follows:

[0023] Shell 10, material channel 11, inspection port 12, slag port 13, reinforcement 14, double-layer static sealing frame 20, dynamic sealing member 30, wedge-shaped bracket 31, dynamic sealing plate 32, through hole 33, hydraulic mechanism 40 and auxiliary slide rod 50. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model embodiments are further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0025] It should be noted that all expressions using "first" and "second" in the embodiments of the utility model are for distinguishing two non-identical entities with the same name or non-identical parameters. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the utility model. The subsequent embodiments will not explain this one by one.

[0026] In order to improve the reliability and airtightness of the gate operation, the utility model proposes an embodiment of an airtight gate, see Figure 1 , including: a shell 10, on which a material channel 11 penetrating the front and rear surfaces of the shell is provided; a double-layer static sealing frame 20 arranged inside the shell 10, the outer sides of the double-layer static sealing frame 20 are respectively sealed and fixedly connected with the front and rear inner surfaces of the shell 10, and a wedge-shaped interlayer space is formed in the middle of the double-layer static sealing frame, and the wedge-shaped interlayer space is connected to the material channel 11; a dynamic seal 30 arranged inside the shell 10, the dynamic seal 30 is wedge-shaped, arranged in the wedge-shaped interlayer space and slidably abutting against the double-layer static sealing frame 20.

[0027] In this embodiment, the opening and closing of the pneumatic gate is realized by the relatively slidable double-layer static sealing frame 20 and the dynamic seal 30. For example, the dynamic seal 30 can be driven by a traditional mechanism to insert or pull out the wedge-shaped interlayer space to achieve the blocking or opening of the material channel. Compared with the traditional hinge design, the airtight gate proposed in this embodiment operates more reliably and has good airtightness. It should be noted that Figure 1 In order to clearly show the internal structure of the housing, only the upper cover of the housing is retained, and the surrounding covers are not shown. For the complete structure of the housing 10, please refer to Figure 2 .

[0028] In one embodiment, the airtight gate of the utility model further includes: a hydraulic mechanism 40 fixedly mounted on the upper surface of the housing 10 , and a hydraulic transmission rod 41 of the hydraulic mechanism 40 passes through the upper surface of the housing and is detachably connected to the dynamic seal 30 .

[0029] In an alternative embodiment, see Figure 1 or Figure 2 Auxiliary sliding rods 50 are also provided on both sides of the hydraulic transmission rod 41. The auxiliary sliding rods 50 are fixedly connected to the dynamic seal through the through-holes that penetrate the upper cover plate of the shell 10, and the auxiliary sliding rods 50 can slide relative to the above-mentioned through-holes, thereby improving the torsion resistance of the hydraulic transmission rod and avoiding deformation of the hydraulic transmission rod.

[0030] In one embodiment, see Figure 2 The left and right surfaces of the housing 10 are also provided with an inspection port 12 and a slag port 13. Specifically, the inspection port 12 is used to observe the state of the hydraulic transmission rod and the connection state with the dynamic seal 30, and to perform maintenance through the inspection port when necessary, such as reinforcing the bolt connection between the hydraulic transmission rod and the dynamic seal 30, or removing dirt on the hydraulic transmission rod. The slag port is used to remove debris entering the housing.

[0031] In one embodiment, a reinforcing member 14 is disposed at the opening of the material channel 11 to prevent the opening of the material channel 11 from being deformed.

[0032] In one embodiment, see Figure 1 The side surface of the double-layer static sealing frame 20 is a right-angle trapezoid, and is narrow at the top and wide at the bottom to form a wedge-shaped sliding surface. Specifically, when the dynamic seal 30 and the double-layer static sealing frame 20 slide relative to each other, the upper edge of the double-layer static sealing frame 20 has a certain cleaning effect on the surface of the dynamic seal 30, avoiding the formation of potassium and sodium crystals on the dynamic sealing plate 32, thereby ensuring the sealing of the gate. The cleaned potassium and sodium crystals can be cleaned up later by the slag outlet.

[0033] In one embodiment, see Figure 3 The dynamic seal 30 includes: a wedge-shaped bracket 31; and dynamic sealing plates 32 disposed on both sides of the wedge-shaped bracket 31, wherein the area of ​​the dynamic sealing plate 32 is larger than the area of ​​the area enclosed by the double-layer static sealing frame 20.

[0034] In one embodiment, see Figure 4 The wedge-shaped bracket 31 is provided with a plurality of through holes 33 penetrating the front and rear surfaces of the wedge-shaped bracket. Specifically, the through holes 33 of the bracket in this embodiment have the following advantages: first, it can reduce the overall weight of the dynamic seal 30; second, it can provide heat dissipation space for the friction heat generated by the dynamic seal 30 and the double-layer static seal frame 20, thereby avoiding deformation of the dynamic seal plate 32. Figure 5 .

[0035] In one embodiment, the dynamic sealing plate 32 is connected to the wedge-shaped bracket 31 through a bolt gap, and the dynamic sealing plate 32 can move slightly relative to the wedge-shaped bracket 31. Specifically, in this embodiment, the dynamic sealing plate 32 and the wedge-shaped bracket 31 are connected by bolts, but not tightly connected, but with a certain movable gap. The purpose of designing the dynamic sealing plate 32 to be slightly movable relative to the wedge-shaped bracket 31 is to reserve a margin when the dynamic seal 30 is inserted into the wedge-shaped interlayer space, so that the dynamic sealing plate 32 can adapt to the wedge-shaped sliding surface of the wedge-shaped bracket 31.

[0036] In one embodiment, the airtight gate of the utility model further includes an elastic member (not shown) disposed in the through hole 33, and the elastic member is elastically abutted against the dynamic sealing plates 32 disposed on both sides of the wedge-shaped bracket 31, wherein the elastic member includes: a spring or a spring sheet. The elastic member combined with the gap setting in the above embodiment can provide a pre-tightening force when ensuring that the dynamic sealing plate 32 adaptively fits the wedge surface of the wedge-shaped bracket 31, thereby ensuring the airtightness of the gate.

[0037] In an optional embodiment, the dynamic sealing plate 32 may be fastened relative to the wedge-shaped bracket 31 by bolts.

[0038] The above are exemplary embodiments of the utility model disclosure, but it should be noted that various changes and modifications can be made without departing from the scope of the utility model disclosure as defined in the claims.

[0039] Those skilled in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the utility model embodiments (including claims) is limited to these examples; under the idea of ​​the utility model embodiments, the technical features in the above embodiments or different embodiments can also be combined, and there are many other changes in different aspects of the above utility model embodiments, which are not provided in detail for the sake of simplicity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model embodiments should be included in the protection scope of the utility model embodiments.

Claims

1. An airtight gate, characterized in that: include: A shell, wherein the shell is provided with a material passage penetrating through the front and rear surfaces of the shell; A double-layer static sealing frame is arranged inside the shell, the outer sides of the double-layer static sealing frame are respectively sealed and fixedly connected to the front and rear inner surfaces of the shell, and a wedge-shaped interlayer space is formed in the middle of the double-layer static sealing frame, and the wedge-shaped interlayer space is connected to the material channel; A dynamic seal is arranged inside the housing, and is wedge-shaped, arranged in the wedge-shaped interlayer space and slidably abutting against the double-layer static seal frame.

2. The airtight gate according to claim 1, characterized in that: Also includes: The hydraulic mechanism is fixed on the upper surface of the housing, and the hydraulic transmission rod of the hydraulic mechanism passes through the upper surface of the housing and is detachably connected to the dynamic seal.

3. The airtight gate according to claim 2, characterized in that: The left and right surfaces of the shell are also provided with inspection openings and slag openings.

4. The airtight gate according to claim 2, characterized in that: A reinforcing piece is arranged at the opening of the material channel.

5. The airtight gate according to claim 2, characterized in that: The side surface of the double-layer static sealing frame is in a right-angle trapezoid shape, which is narrow at the top and wide at the bottom to form a wedge-shaped sliding surface.

6. The airtight gate according to claim 2 or 5, characterized in that: The dynamic seal comprises: Wedge bracket; Dynamic sealing plates are arranged on both sides of the wedge-shaped bracket, wherein the area of ​​the dynamic sealing plates is larger than the area of ​​the area surrounded by the double-layer static sealing frame.

7. The airtight gate according to claim 6, characterized in that: The wedge-shaped bracket is provided with a plurality of through holes penetrating the front and rear surfaces of the wedge-shaped bracket.

8. The airtight gate according to claim 7, characterized in that: The dynamic sealing plate is connected to the wedge-shaped bracket through a bolt gap, and the dynamic sealing plate is movable relative to the wedge-shaped bracket.

9. The airtight gate according to claim 8, characterized in that: Also includes: The elastic member is arranged in the through hole, and the elastic member is respectively in elastic contact with the dynamic sealing plates arranged on both sides of the wedge-shaped bracket.

10. The airtight gate according to claim 9, characterized in that: The elastic member includes a spring or a spring.

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