Flat gate valve for high-temperature flue gas pipeline

Abstract

The utility model relates to a flat gate valve for a high-temperature flue gas pipeline, and belongs to the technical field of flat gate valves. Comprising a valve plate box body, a valve plate, a support and rolling wheels, a mounting opening is formed in the side wall of a high-temperature flue gas pipeline, the valve plate box body is fixedly arranged in the mounting opening, and the valve plate is arranged in the valve plate box body in a sliding mode; a support is arranged on the outer side of the mounting opening, a row of idler wheels are rotationally arranged at the upper end of the support, and the valve plate sliding out of the valve plate box body slides on the row of idler wheels; the problem that a high-temperature flue gas pipeline valve plate cannot be adjusted due to the fact that a traditional electric actuator is damaged at present is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of flat gate valve, concretely relates to a flat gate valve for high temperature flue gas pipeline. BACKGROUND

[0002] The valve plate device in the high temperature flue gas pipeline of cement enterprises is prone to cause problems such as material accumulation and skinning at the valve plate due to more powder in the flue gas, and various faults often occur when the valve plate works in a high temperature environment for a long time.

[0003] In the conventional valve plate opening degree adjusting system, whether it is a horizontal flue gas pipeline or a vertical flue gas pipeline, most of them adopt electric actuators to control and adjust the valve plate opening degree for the convenience of adjustment, and the valve body and the material accumulation and skinning of the high temperature flue gas pipeline often cause the phenomenon of sticking when the valve plate opening degree is adjusted, thereby causing the electric actuator to overload and stop or be damaged, affecting the normal operation of the production system and causing certain economic losses to the enterprise.

[0004] From the use of most enterprises, the high temperature flue gas pipeline valve plate adjusting frequency is very low, in order to avoid the damage of the electric actuator caused by the valve plate adjustment and affect the normal production of the system, a manual adjustment operation valve plate device needs to be designed to effectively avoid the above problems. UTILITY MODEL CONTENTS

[0005] The utility model overcomes the defects of the prior art and provides a flat gate valve for a high temperature flue gas pipeline, which solves the problem that the valve plate of the high temperature flue gas pipeline cannot be adjusted due to the damage of the conventional electric actuator.

[0006] In order to achieve the above purpose, the utility model is implemented by the following technical scheme.

[0007] A flat gate valve for a high temperature flue gas pipeline comprises a valve plate box body, a valve plate, a support and a roller, an installation port is formed in the side wall of the high temperature flue gas pipeline, the valve plate box body is fixedly arranged in the inside of the installation port, and the valve plate is slidably arranged in the inside of the valve plate box body; the support is arranged on the outside of the installation port, a row of rollers are rotatably arranged at the upper end of the support, and the valve plate slid out to the outside of the valve plate box body slides on the row of rollers.

[0008] Further, the high temperature flue gas passage is a vertically arranged cylindrical structure, anchor members are uniformly welded in the inside of the high temperature flue gas passage, and refractory material is cast on the inner wall of the high temperature flue gas passage; the installation port is a horizontally arranged square structure, and the width of the installation port is the same as the diameter of the high temperature flue gas passage.

[0009] Further, the valve plate box body is a horizontally arranged square box structure, both the inner end and the outer end of the valve plate box body are kept open, the inner end of the valve plate box body is fixedly arranged inside the mounting port, and the outer end of the valve plate box body is kept vertical; the inner end of the valve plate box body is flush with the inner wall of the high-temperature flue gas passage; an anchor is uniformly welded in the inner wall of the valve plate box body, and a refractory material is cast on the inner wall of the valve plate box body.

[0010] Further, a vertical sealing plate is fixedly arranged at the outer end of the valve plate box body, and the sealing plate is a square ring-shaped plate structure.

[0011] Further, the valve plate comprises a valve plate body, a reinforcing rib plate, a main support plate and an ear plate; the valve plate body is a horizontally arranged plate structure, the edge of the inner end of the valve plate body extending into the valve plate box body is in a circular arc shape, and the outer end of the valve plate body extending out of the valve plate box body is in a straight line shape; three reinforcing rib plates are fixedly arranged at the upper end face and the lower end face of the valve plate body respectively, the three reinforcing rib plates are arranged along the width direction of the valve plate body, and each reinforcing rib plate extends along the length direction of the valve plate body; the main support plate is a vertically arranged square box structure, and the main support plate is fixedly arranged at the outer end of the valve plate body extending out of the valve plate box body; and the ear plate is fixedly arranged at the middle part of the outer end of the main support plate.

[0012] Further, an anchor is uniformly welded at the upper end of the valve plate body, and a refractory material is cast on the upper end of the valve plate body.

[0013] Further, the support frame comprises an upper frame and a support leg, the upper frame is a horizontally arranged square frame structure, a row of the rollers are rotatably arranged in the upper frame, and the arrangement direction of the rollers is arranged along the sliding direction of the valve plate; a vertical support leg is fixedly arranged at each of the four corners of the lower end face of the upper frame, and adjacent two support legs are fixedly connected through a connecting rod.

[0014] The present application has the following beneficial effects compared with the prior art:

[0015] When the system needs to adjust the opening degree of the valve plate, since the flat gate valve is horizontally arranged, the internal powder is less accumulated and skinned, and the valve plate can be pushed in or moved out only by slightly using force, so that the adjustment is convenient, and the problem that the valve plate cannot be adjusted due to damage of the traditional electric actuator is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0016] The present application will be further described in detail below with reference to the drawings:

[0017] Figure 1 is a structural schematic view of the whole application;

[0018] Figure 2is a connection diagram between the high-temperature flue gas passage and the valve plate box body;

[0019] Figure 3 is a structural diagram of the sealing plate;

[0020] Figure 4 is a structural diagram of the valve plate;

[0021] Figure 5 is a connection diagram between the support and the roller;

[0022] Wherein, 1 is a high-temperature flue gas pipeline, 2 is a valve plate box body, 3 is a refractory material, 4 is a sealing plate, 5 is a valve plate, 51 is a valve plate body, 52 is a reinforcing rib plate, 53 is a main support plate, 54 is an ear plate, 6 is a support, 7 is a roller, 8 is an anchor. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical schemes and beneficial effects of the utility model clearer and more apparent, the utility model is further described in detail in combination with embodiments and drawings. It should be understood that the specific embodiments described herein are only used to explain the utility model and not to limit the utility model. The technical scheme of the utility model is described in detail below in combination with embodiments and drawings, but the protection scope is not limited thereto.

[0024] As shown in Figure 1 The utility model provides a flat gate valve for high-temperature flue gas pipeline, including valve plate box body 2, valve plate 5, support 6, roller 7, install the mouth on the lateral wall of high-temperature flue gas pipeline 1, the inside fixed setting of install the mouth has valve plate box body 2, the inside sliding of valve plate box body 2 has valve plate 5, the outside of install the mouth is provided with support 6, and one row of rollers 7 is rotationally arranged on the upper end of support 6, and the valve plate 5 sliding out to the outside of valve plate box body 2 is sliding on one row of rollers 7.

[0025] The high-temperature flue gas passage is a vertically arranged cylindrical structure, anchor 8 is evenly welded in the inside of high-temperature flue gas passage, and refractory material 3 is cast on the inner wall of high-temperature flue gas passage. The installation mouth is a horizontally arranged square structure, and the width of the installation mouth is the same as the diameter of the high-temperature flue gas passage.

[0026] The valve plate box body 2 is a horizontally arranged square box structure, and the inside and outside ends of the valve plate box body 2 are kept open, the inside end of the valve plate box body 2 is fixedly arranged in the inside of the installation mouth, and the outside end of the valve plate box body 2 is kept vertical. The inside end of the valve plate box body 2 is flush with the inner wall of the high-temperature flue gas passage. The width of the valve plate box body 2 is the same as the diameter of the high-temperature flue gas passage. Anchor 8 is evenly welded in the inside of the valve plate box body 2, and refractory material 3 is cast on the inner wall of the valve plate box body 2.

[0027] A vertical sealing plate 4 is fixedly arranged at one end of the valve plate box 2, and the sealing plate 4 is a square ring-shaped plate structure.

[0028] The valve plate 5 comprises a valve plate body 51, a reinforcing rib plate 52, a main support plate 53, and an ear plate 54. The valve plate body 51 is a horizontally arranged plate structure, and the end edge of the valve plate body 51 extending into the inside of the valve plate box 2 is a circular arc shape, and the end of the valve plate body 51 extending out of the valve plate box 2 is a straight line shape. Three reinforcing rib plates 52 are fixedly arranged at the upper and lower end faces of the valve plate body 51, respectively, and the three reinforcing rib plates 52 are arranged along the width direction of the valve plate body 51, and each reinforcing rib plate 52 extends along the length direction of the valve plate body 51. The main support plate 53 is a vertically arranged square box structure, and the main support plate 53 is fixedly arranged at the end of the valve plate body 51 extending out of the valve plate box 2. The ear plate 54 is fixedly arranged at the middle of the outer end of the main support plate 53.

[0029] An anchor 8 is uniformly welded at the upper end of the valve plate body 51, and a refractory material 3 is poured at the upper end of the valve plate body 51.

[0030] The gap between the valve plate box 2 and the valve plate 5 is set to 20-30 mm, so as to ensure that the valve plate 5 can be normally installed inside the valve plate box 2.

[0031] The support 6 comprises an upper frame and a support leg, and the upper frame is a horizontally arranged square frame structure. A row of the rollers 7 is rotatably arranged inside the upper frame, and the arrangement direction of the rollers 7 is arranged along the sliding direction of the valve plate 5. A vertical support leg is fixedly arranged at each of the four corners of the lower end face of the upper frame, and the adjacent two support legs are fixedly connected through a connecting rod.

[0032] The row of rollers 7 is flush with the lower end face of the valve plate box 2, so as to ensure that the valve plate 5 can be smoothly installed inside the valve plate box 2.

[0033] The anchors 8 on the high-temperature flue gas pipeline 1, the valve plate box 2, and the valve plate body 51 should be cross-distributed to strengthen the strength of the refractory material 3.

[0034] When the valve plate 5 is installed, the support 6 is placed on the platform, and the support 6 is located outside the installation port of the high-temperature flue gas passage. The valve plate 5 is placed on the row of rollers 7, and then the valve plate 5 is pushed into the inside of the valve plate box 2 as a whole, so that the inside end of the valve plate 5 is attached to the inner wall of the high-temperature flue gas passage. Then, an appropriate amount of sealing material is filled in the gap between the valve plate box 2 and the valve plate 5, and the gap between the valve plate 5 and the inner wall of the valve plate box 2 is sealed through the sealing plate 4.

[0035] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. A flat gate valve for high temperature flue gas ducts, characterized by: The utility model provides a kind of high-temperature flue valve plate device, including valve plate box (2), valve plate (5), support (6), roller (7), installation port is set on the lateral wall of high-temperature flue (1), valve plate box (2) is fixedly arranged in the inside of installation port, valve plate (5) is slidably arranged in the inside of valve plate box (2);Support (6) is arranged on the outside of installation port, a row of rollers (7) is rotatably arranged on the upper end of support (6), valve plate (5) sliding out to the outside of valve plate box (2) is slid on a row of rollers (7).

2. A flat gate valve for high temperature flue gas ducts according to claim 1, characterized in that: The high-temperature flue passage is a vertically arranged cylindrical structure, anchor members (8) are evenly welded inside the high-temperature flue passage, and refractory material (3) is cast on the inner wall of the high-temperature flue passage; the installation port is a horizontally arranged square structure, and the width of the installation port is the same as the diameter of the high-temperature flue passage.

3. A flat gate valve for high temperature flue gas ducts according to claim 1, characterized in that: The valve plate box (2) is a horizontally arranged square box structure, both ends of the valve plate box (2) are open, one end of the inner side of the valve plate box (2) is fixedly arranged inside the installation port, and the other end of the outer side of the valve plate box (2) is kept vertical; the inner wall of the high-temperature flue passage is flush with one end of the inner side of the valve plate box (2); anchor members (8) are evenly welded inside the valve plate box (2), and refractory material (3) is cast on the inner wall of the valve plate box (2).

4. A flat gate valve for high temperature flue gas ducts according to claim 3, characterized in that: A vertical sealing plate (4) is fixedly arranged at the other end of the outer side of the valve plate box (2), and the sealing plate (4) is a square ring-shaped plate structure.

5. A flat gate valve for high temperature flue gas ducts according to claim 4, characterized in that: The valve plate (5) includes a valve plate body (51), reinforcing rib plates (52), a main support plate (53), and ear plates (54); the valve plate body (51) is a horizontally arranged plate structure, the edge of one end of the valve plate body (51) extending into the inner side of the valve plate box (2) is a circular arc, and the other end of the valve plate body (51) extending out of the valve plate box (2) is a straight line; three reinforcing rib plates (52) are fixedly arranged on the upper and lower end faces of the valve plate body (51), respectively, and the three reinforcing rib plates (52) are arranged along the width direction of the valve plate body (51); each reinforcing rib plate (52) extends along the length direction of the valve plate body (51); the main support plate (53) is a vertically arranged square box structure, and the main support plate (53) is fixedly arranged at the other end of the valve plate body (51) extending out of the valve plate box (2); the ear plates (54) are fixedly arranged at the middle of the other end of the outer side of the main support plate (53).

6. A flat gate valve for high temperature flue gas ducts according to claim 5, characterized in that: Anchor members (8) are evenly welded on the upper end of the valve plate body (51), and refractory material (3) is cast on the upper end of the valve plate body (51).

7. A flat gate valve for high temperature flue gas ducts according to claim 1, characterized in that: The support (6) includes an upper frame and support legs, the upper frame is a horizontally arranged square frame structure, a row of rollers (7) are rotatably arranged inside the upper frame, and the arrangement direction of the rollers (7) is arranged along the sliding direction of the valve plate (5); a vertical support leg is fixedly arranged at each of the four corners of the lower end face of the upper frame, and adjacent two support legs are fixedly connected by a connecting rod.

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