Flat gate valve

Abstract

The utility model discloses a flat gate valve, which relates to the technical field of flat gate valves, and comprises a supporting unit, a plurality of connecting units and a plurality of connecting units, the connecting unit comprises grooves formed in the two ends of the bottom plate and the outer side face of the supporting frame, and connecting plates arranged in the grooves. The gate valve has the advantages that the gate plate is opened or closed through the driving oil cylinders, the driving oil cylinders have high-temperature resistance compared with a conventional electric drive, the problem that the electric drive fails and cannot be used under the high-temperature state can be solved, the two driving oil cylinders are arranged on the two sides of the gate valve to jointly drive the transmission arm to move, and the gate valve is convenient to use. And a supporting point is provided for the push rod through the supporting mechanism, and the problem that the tail end of the push rod is bent due to the fact that the weight of the tail end of the push rod is too large can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of flat gate valve, in particular to a flat gate valve. BACKGROUND

[0002] The square gate valve controlled by the electric actuator is generally used in the coke discharging port of the dry quenching furnace bottom, the feeding side of the valve body (the side butting with the furnace body embedded part) is a circular opening, the discharging side (the side butting with the vibrating feeder) is a variable-diameter square opening, the valve core is a square gate, the valve works at the temperature of 120 DEG C to 230 DEG C, is located in the non-open furnace bottom, and belongs to the high-risk space with high dust and high leakage rate of circulating gas (main components are N2, CO2 and CO), the valve is a normally open control valve (generally only needs to be closed to prevent the toxic gas in the furnace from leaking out when stopping coke discharging for maintenance), at the initial stage of production, the opening and closing are relatively smooth, but with the passage of time, the problems of the gate valve core opening and closing not being in place or even being unable to act repeatedly occur, and the single processing time is about 4h on average, which seriously restricts the safety production, the front (furnace bottom embedded part) and rear of the valve are variable-diameter shape closing openings, the coke is solid fluid with different block sizes, and the coke is easy to form a blocking body at the variable-diameter part, in addition, the working temperature is high, the structure is easy to deform, the dust is easy to contaminate the threads of the valve stem, so that the opening and closing are not in place or the electric actuator is burned out, and the tail end of the threaded rod bears too large weight, which can cause the threaded rod to be bent. CONTENT OF THE UTILITY MODEL

[0003] In view of the above technical problems of the prior art, the utility model is provided.

[0004] The utility model aims at providing a supporting mechanism, which aims at solving the problem that the bottom of the threaded rod bears too large weight, causing the threaded rod to be bent.

[0005] In order to solve the above technical problems, the utility model provides the following technical scheme: a supporting mechanism, comprising a supporting unit, a bottom plate and a supporting frame arranged on the top of the bottom plate;

[0006] A connecting unit comprises grooves arranged on both ends of the bottom plate and the outer side surface of the supporting frame, and connecting plates arranged in the grooves.

[0007] The supporting mechanism has the advantages that the structure of the arch gate support is relatively simple, welding can ensure the stability and durability of the structure, and the arch gate support can support multiple points by using the upper surface.

[0008] The utility model aims at providing a flat gate valve, which aims at solving the problem that the electric drive is deformed in a high-temperature environment, and the dust causes the opening and closing to be not in place or the electric actuator to be burned out.

[0009] To solve the above technical problems, the utility model provides the following technical scheme: a flat plate gate valve, including, shielding unit, including fixed part, and with fixed part sliding connection shielding piece,

[0010] Drive unit, including setting in the fixed part both sides extension piece, and setting in the extension piece extension end connecting piece,

[0011] One end of connecting piece and one side outer wall of shielding piece fixed connection, support unit is located in the just below connecting piece.

[0012] As a preferred scheme of the utility model flat plate gate valve, wherein: the fixed part is specifically for the gate valve.

[0013] As a preferred scheme of the utility model flat plate gate valve, wherein: the shielding piece is specifically for the gate.

[0014] As a preferred scheme of the utility model flat plate gate valve, wherein: the extension piece includes setting in the fixed part both sides fixed seat, setting in the fixed seat drive oil cylinder, and setting in the drive oil cylinder top end connecting lug.

[0015] As a preferred scheme of the utility model flat plate gate valve, wherein: the connecting piece includes setting in the extension piece extension end transmission arm, and setting in the transmission arm one side outer wall push rod,

[0016] One end of push rod and one side outer wall of shielding piece fixed connection.

[0017] As a preferred scheme of the utility model flat plate gate valve, wherein: the section of connecting lug is " U " type face.

[0018] As a preferred scheme of the utility model flat plate gate valve, wherein: the section of fixed seat is " 凵 " type face.

[0019] As a preferred scheme of the utility model flat plate gate valve, wherein: the lower surface of support frame and push rod is tangent.

[0020] As a preferred scheme of the utility model flat plate gate valve, wherein: the fixed seat is perpendicular to the both sides of fixed part.

[0021] The utility model flat plate gate valve has the beneficial effects that: drive oil cylinder opens or closes the gate, drive oil cylinder has high temperature resistance compared with conventional electric drive, can prevent the problem that electric drive fails to use under high temperature state, and through setting two drive oil cylinders on the both sides of gate valve and moving transmission arm together, can prevent the problem that push rod is inclined and stuck, and through support mechanism provides support point for push rod, can prevent the problem that the tail end of push rod is too heavy and causes bending. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of this utility model.

[0024] Figure 2 This is a top view of the structure of this utility model.

[0025] Figure 3 This is a front view of the structure of this utility model. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0029] Example 1

[0030] Reference Figure 1 - Figure 3 This is the first embodiment of the present utility model. This embodiment provides a support mechanism, including a support unit 100, including a base plate 101 and a support frame 102 disposed on the top of the base plate 101.

[0031] The connecting unit 200 includes grooves 201 formed at both ends of the base plate 101 and on the outer side of the support frame 102, and a connecting plate 202 disposed in the grooves 201.

[0032] It needs to be explained that the support unit 100 includes a bottom plate 101, the top of which is fixedly welded with a support frame 102, the top of the support frame 102 is a plane, the connecting unit 200 includes a groove 201 opened on the outer side of the support frame 102, and a plurality of connecting plates 202 are respectively embedded in the corresponding grooves 201, and each structure forms an arch-shaped support.

[0033] In use, a plurality of bottom plates 101 are welded with the support frame 102 to form the support unit 100, then the bottom plate is welded in the support area, the corresponding grooves 201 of the bottom plate 101 and the support frame 102 are aligned, and the connecting plate 202 is embedded in the groove 201, and an arch-shaped support is formed.

[0034] In summary, the structure of the arch-shaped support is relatively simple, and welding can ensure the stability and durability of the structure, and the arch-shaped support can support multiple points by using the upper surface thereof.

[0035] Embodiment 2

[0036] Reference Figure 1 - Figure 3 The second embodiment of the present application further provides a flat gate valve, which comprises a shielding unit 300, a fixed part 301, and a shielding part 302 connected with the fixed part 301.

[0037] The driving unit 400 comprises an extension part 401 arranged on both sides of the fixed part 301, and a connecting part 402 arranged at the extension end of the extension part 401.

[0038] One end of the connecting part 402 is fixedly connected with one side of the outer wall of the shielding part 302, and the support unit 100 is located directly below the connecting part 402.

[0039] Further, the fixed part 301 is specifically a gate valve.

[0040] Further, the shielding part 302 is specifically a gate.

[0041] Further, the extension part 401 comprises a fixed seat 401a arranged on both sides of the fixed part 301, a driving oil cylinder 401b arranged in the fixed seat 401a, and a connecting lug 401c arranged at the top end of the driving oil cylinder 401b.

[0042] Further, the connecting part 402 comprises a transmission arm 402a arranged at the extension end of the extension part 401, and a push rod 402b arranged on one side of the outer wall of the transmission arm 402a.

[0043] One end of the push rod 402b is fixedly connected with one side of the outer wall of the shielding part 302.

[0044] Further, the connecting lug 401c has a "U" shaped cross section.

[0045] Further, the fixed seat 401a is in the shape of a "N" section.

[0046] Further, the lower surface of the support frame 102 and the push rod 402b are tangent.

[0047] It should be noted that the fixed part 301 is a gate valve, and the shielding part 302 is a gate. The gate valve is fixedly connected with the fixed seat 401a on both sides, and the fixed seat 401a is fixedly connected with the drive oil cylinder 401b inside. The extension end of the drive oil cylinder 401b is connected with the connecting lug 401c through the connecting pin, and the connecting lug 401c is fixedly connected with the transmission arm 402a on one side. The transmission arm 402a is fixedly welded with the push rod 402b at the center, and the push rod 402b is fixedly connected with one side of the gate.

[0048] In use, by starting the extension and contraction of the drive oil cylinder 401b, the transmission arm 402a is linearly displaced. In this process, the push rod 402b on the transmission arm 402 effectively drives the gate to move between inside and outside the gate valve: when extended, the gate accurately blocks the furnace opening; when retracted, the furnace opening is smoothly opened, realizing the function while keeping the operation simple and smooth.

[0049] In summary, by driving the gate to open or close through the drive oil cylinder 401b, the drive oil cylinder 401b has high temperature resistance compared with conventional electric drive, which can prevent the problem that electric drive fails to use under high temperature state, and by setting two drive oil cylinders 401b on both sides of the gate valve to drive the transmission arm 402a to move together, the problem of the push rod 402b being tilted and stuck can be prevented, and by providing a support point for the push rod 402b through the support mechanism, the problem of the push rod 402b being bent due to excessive weight at the tail end can be prevented.

[0050] Embodiment 3

[0051] Reference Figure 1 - Figure 3 The third embodiment of the utility model is different from the second embodiment in that the fixed part 301 is a fixed plate and the shielding part 302 is a filter screen.

[0052] In use, by starting the extension and contraction of the drive oil cylinder 401b, the transmission arm 402a is linearly displaced. In this process, the push rod 402b on the transmission arm 402 effectively drives the gate to move between inside and outside the gate valve: when extended, the gate accurately blocks the furnace opening; when retracted, the furnace opening is smoothly opened, realizing the function while keeping the operation simple and smooth.

[0053] In summary, by setting a filter screen that can be retracted, the filtering effect can be achieved, when discharging some high-quality products, the filter screen can be opened to filter large particles in the finished product, preventing the finished product quality from being affected.

[0054] Embodiment 4

[0055] With reference to Figure 1 Figure 3 For the fourth embodiment of the utility model, different from the second embodiment is that the fixing part 301 is a filter screen cover, and the shielding part 302 is a filter screen.

[0056] It should be noted that the filter screen cover is installed at the discharge port of the furnace mouth, and the filter screen cover filters the discharge.

[0057] In use, by starting the extension and retraction of the drive oil cylinder 401b, the transmission arm 402a is linearly displaced, and in this process, the push rod 402b on the transmission arm 402 effectively drives the filter screen to move between the inside and outside of the filter screen cover: when extended, the filter screen cover performs single-layer filtering; when retracted, the filter screen cover and the filter screen perform double-layer filtering.

[0058] In summary, by setting a filter screen that can be retracted, and the filter screen cover that directly filters, the double-layer filtering effect can be achieved, when discharging some high-quality products, the filter screen can be retracted to double-layer filter large particles in the finished product, improving the finished product quality, and when the quality of some finished products is not very high, single-layer filtering can be used.

[0059] Importantly, the above embodiments are only used to illustrate the technical solutions of the utility model and not to limit, although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the utility model can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the utility model, and they should all be covered in the scope of the claims of the utility model.​

Claims

1. A flat gate valve, characterized by: The support mechanism comprises a support unit, a connecting unit, a shielding unit and a driving unit. The support unit (100) comprises a bottom plate (101) and a support frame (102) arranged on the top of the bottom plate (101); The connecting unit (200) comprises a groove (201) arranged on both ends of the bottom plate (101) and the outer side of the support frame (102), and a connecting plate (202) arranged in the groove (201); And: The shielding unit (300) comprises a fixing part (301) and a shielding part (302) in sliding connection with the fixing part (301); The driving unit (400) comprises an extension part (401) arranged on both sides of the fixing part (301), and a connecting part (402) arranged at the extension end of the extension part (401); One end of the connecting part (402) is fixedly connected with one side of the outer wall of the shielding part (302), and the support unit (100) is located directly below the connecting part (402).

2. The flat plate gate valve of claim 1, wherein: The fixing part (301) is a gate valve.

3. The flat plate gate valve of claim 2, wherein: The shielding part (302) is a gate.

4. The flat plate gate valve of claim 2, wherein: The extension part (401) comprises a fixing seat (401a) arranged on both sides of the fixing part (301), a drive oil cylinder (401b) arranged in the fixing seat (401a), and a connecting lug (401c) arranged at the top end of the drive oil cylinder (401b).

5. The flat plate gate valve of claim 2, wherein: The connecting part (402) comprises a transmission arm (402a) arranged at the extension end of the extension part (401), and a push rod (402b) arranged on one side of the outer wall of the transmission arm (402a); One end of the push rod (402b) is fixedly connected with one side of the outer wall of the shielding part (302).

6. The flat plate gate valve of claim 4, wherein: The cross section of the connecting lug (401c) is a "U" shaped surface.

7. The flat plate gate valve of claim 4, wherein: The cross section of the fixing seat (401a) is a "N" shaped surface.

8. The flat plate gate valve of claim 5, wherein: The lower surfaces of the support frame (102) and the push rod (402b) are tangent.

9. The flat plate gate valve of claim 4, wherein: The fixing seat (401a) is vertically welded on both sides of the fixing part (301).

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