Built-in gate valve of blanking pipe of dust remover and dust remover

Abstract

The utility model provides a built-in gate valve for a blanking pipe of a dust remover and the dust remover, which belong to the technical field of valves and are used for being connected with the blanking pipe of the dust remover. A communicating opening is formed between one end of the box body positioning ring body and the side wall of the discharging pipe positioning ring body, and an opening is formed in the other end of the box body positioning ring body; the cover body positioning ring body is detachably connected with the outer side of the opening; the inserting plate positioning ring body slides in the box body positioning ring body, and the inserting plate positioning ring body can be pushed into the discharging pipe positioning ring body to block the discharging pipe positioning ring body or pulled out of the discharging pipe positioning ring body; due to the fact that no friction relation exists between the inserting plate of the inserting plate valve and the opening of the box body, in the long-term using process, the position of the opening is not abraded, the sealing performance is improved, dust leakage is effectively prevented, and the field environment is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves, and more specifically, relates to a built-in knife gate valve in the discharge pipe of a dust collector and a dust collector. Background Technique

[0002] The multi-tube dust collector is an efficient dry dust removal device. Dust slides into the ash hopper under the action of centrifugal force and gravity. The discharge pipe of the dust collector is a key component connecting the ash hopper of the dust collector and the pneumatic ash conveying pump of the dust collector. In the existing dust collector, a knife gate valve is installed at the connection between the ash hopper and the discharge pipe 2 to cut off the dust during the replacement of the pneumatic ash conveying pump. As Figure 1 shown, the existing knife gate valve includes a frame 6, a lead screw 7, a control handle 8 and a knife gate 4. There is a socket at the connection between the ash hopper and the discharge pipe 3. The knife gate 4 is inserted into the socket. A sealing ring is provided between the knife gate 4 and the inner side of the socket. One end of the frame 6 is connected to the connection. The knife gate 4 slides in the frame 6. A threaded hole is provided at the other end of the frame 6. The lead screw 7 passes through the threaded hole and is threadedly connected to the threaded hole. One end of the lead screw 7 is rotatably connected to one end of the knife gate 4, and the other end of the lead screw 7 is connected to the control handle.

[0003] With the improvement of environmental protection standards and the increasing requirements for dust removal efficiency in industrial production, the technical requirements for the built-in knife gate valve in the discharge pipe of the dust collector are also getting higher and higher. A knife gate valve that can adapt to high-temperature and high-pressure working conditions, has good sealing performance, low maintenance cost and long service life is needed. Although the existing knife gate valve can cut off the dust, during long-term use, the sealing ring between the knife gate and the socket is easily worn under the abrasion of dust, resulting in a decrease in the sealing effect and thus causing dust leakage. In the existing technology, measures such as applying butter between the knife gate and the socket and replacing the sealing ring have been tried. However, these improvements have not completely solved the above problems. Especially in the harsh environment of high temperature and high pressure during the ash conveying of the dust collector, the reliability and stability of the knife gate valve still need to be improved. Summary of the Utility Model

[0004] The purpose of the utility model is to aim at the existing technical deficiencies and provide a built-in knife gate valve in the discharge pipe of a dust collector and a dust collector to solve the problem that in the existing knife gate valve during long-term use, the sealing ring between the knife gate and the socket is easily worn under the abrasion of dust, resulting in a decrease in the sealing effect and thus causing dust leakage as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides a built-in knife gate valve in the discharge pipe of a dust collector, which is used to connect with the discharge pipe of the dust collector. The knife gate valve includes:

[0006] The box positioning ring body, one end of the box positioning ring body is connected to the side wall of the blanking pipe positioning ring body, a communication port is provided between one end of the box positioning ring body and the side wall of the blanking pipe positioning ring body, and the other end of the box positioning ring body is provided with an opening;

[0007] The cover positioning ring body, the cover positioning ring body is detachably connected to the outside of the opening;

[0008] The plug plate positioning ring body, the plug plate positioning ring body slides in the box positioning ring body, and the plug plate positioning ring body can be pushed into the blanking pipe positioning ring body to block the blanking pipe positioning ring body, or pulled out from the blanking pipe positioning ring body.

[0009] Preferably, the built-in plug valve in the blanking pipe of the dust collector further includes a positioning ring body positioning ring body, the outer periphery of the positioning ring body positioning ring body is connected to the inner periphery of the blanking pipe positioning ring body, the positioning ring body positioning ring body is arranged below the communication port, and the positioning ring body positioning ring body is used to support the plug plate positioning ring body.

[0010] Preferably, the upper surface of the positioning ring body positioning ring body is in the same plane as the inner lower surface of the box positioning ring body.

[0011] Preferably, the built-in plug valve in the blanking pipe of the dust collector further includes a sealing ring, and the sealing ring is arranged between the cover positioning ring body and the outside of the opening.

[0012] Preferably, the sealing ring is an asbestos sealing ring.

[0013] Preferably, the plug plate positioning ring body includes a push plate and a sliding plate, the push plate is arranged vertically, the sliding plate is arranged horizontally, the bottom of the push plate is connected to one end of the sliding plate, and the other end of the sliding plate is arranged near the communication port.

[0014] Preferably, the shape of the other end of the sliding plate is the same as the cross-sectional shape of the blanking pipe positioning ring body.

[0015] Preferably, the cover positioning ring body and the outside of the opening are connected by a plurality of bolts.

[0016] A dust collector, the dust collector includes:

[0017] The blanking pipe positioning ring body;

[0018] The built-in plug valve in the blanking pipe of the dust collector, which is connected to the blanking pipe positioning ring body.

[0019] Preferably, the dust collector further includes:

[0020] The ash hopper, the ash hopper is arranged above the box and is communicated with the blanking pipe;

[0021] The pneumatic ash conveying pump is arranged below the box body and communicated with the blanking pipe.

[0022] The utility model provides a plug valve built in the blanking pipe of a dust collector and a dust collector, and the beneficial effects are as follows: when the pneumatic ash conveying pump needs to be replaced, the opening of the box body is opened, and the plug is manually pushed to move the plug horizontally into the blanking pipe to block the blanking pipe and realize the truncation of the dust removal ash. On the contrary, when the pneumatic ash conveying pump is replaced, the plug is pulled into the box body, the cover body is connected to the opening position, and then the dust removal ash is fed. Since there is no friction relationship between the plug of the plug valve and the opening of the box body, during long-term use, the position of the opening is not abraded, the sealing performance is improved, dust leakage is effectively prevented, the on-site environment is improved, and even in harsh environments of high temperature and high pressure, the plug valve still has a certain reliability and stability.

[0023] Other features and advantages of the utility model will be described in detail in the following specific implementation part. Brief Description of the Drawings

[0024] By describing the exemplary embodiments of the utility model in more detail in conjunction with the drawings, the above and other objects, features and advantages of the utility model will become more obvious. Among them, in the exemplary embodiments of the utility model, the same reference numerals generally represent the same components.

[0025] Figure 1 Shows the structural schematic diagram of the plug valve and the dust collector of the prior art;

[0026] Figure 2 Shows the structural schematic diagram of a plug valve built in the blanking pipe of a dust collector and a dust collector according to an embodiment of the utility model;

[0027] Figure 3 Shows the structural schematic diagram of a plug valve built in the blanking pipe of a dust collector and a dust collector in the open state according to an embodiment of the utility model;

[0028] Figure 4 Shows Figure 3 The structural schematic diagram in the A-A direction in;

[0029] Figure 5 Shows the structural schematic diagram of a plug valve built in the blanking pipe of a dust collector and a dust collector in the opening and closing transition state according to an embodiment of the utility model;

[0030] Figure 6 Shows Figure 5 The structural schematic diagram in the B-B direction in;

[0031] Figure 7Shows a structural schematic diagram of an internal plug valve in the blanking pipe of a dust collector and the closed state of the dust collector according to an embodiment of the present utility model;

[0032] Figure 8 Shows Figure 7 The structural schematic diagram in the C-C direction in

[0033] Explanation of reference numerals:

[0034] 1. Box body; 2. Blanking pipe; 3. Cover body; 4. Plug board; 5. Positioning ring body; 6. Frame; 7. Lead screw; 8. Operating handle. Specific embodiments

[0035] The preferred embodiments of the present utility model will be described in more detail below. Although the preferred embodiments of the present utility model are described below, it should be understood that the present utility model can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present utility model more thorough and complete, and to fully convey the scope of the present utility model to those skilled in the art.

[0036] As Figures 2 - 8 shown, the present utility model provides an internal plug valve in the blanking pipe of a dust collector, which is used to connect with the blanking pipe 2 of the dust collector. The plug valve includes:

[0037] A box body 1, one end of the box body 1 is connected to the side wall of the blanking pipe 2, a communication port is provided between one end of the box body 1 and the side wall of the blanking pipe 2, and the other end of the box body 1 is provided with an opening;

[0038] A cover body 3, the cover body 3 is detachably connected to the outside of the opening;

[0039] A plug board 4, the plug board 4 slides in the box body 1, and the plug board 1 can be pushed into the blanking pipe 2 to block the blanking pipe 2, or pulled out from the blanking pipe 2.

[0040] Specifically, to solve the problem that in the existing flap valve during long-term use, the sealing ring between the flap and the socket is prone to wear under the abrasion of dust, resulting in a decline in the sealing effect and causing dust leakage, the present utility model provides an in-line flap valve for the dust discharge pipe of a dust collector. When it is necessary to replace the pneumatic ash conveying pump, open the opening of the box body 1, manually push the flap 4, and move the flap 4 horizontally into the dust discharge pipe 2 to block the dust discharge pipe 2, so as to cut off the dust removal ash. Conversely, when the pneumatic ash conveying pump is replaced, pull the flap 4 into the box body 1, connect the cover body 3 at the opening position, and then carry out the feeding of the dust removal ash to achieve the discharge of the dust removal ash. Since there is no frictional relationship between the flap 4 of the flap valve and the opening of the box body 1, during long-term use, the position of the opening is not abraded, the sealing performance is improved, the dust leakage is effectively prevented, the on-site environment is improved, and even in harsh environments of high temperature and high pressure, the flap valve still has a certain reliability and stability, and the service life of the flap valve is extended.

[0041] Preferably, the in-line flap valve for the dust discharge pipe of the dust collector further includes a positioning ring body 5. The outer periphery of the positioning ring body 5 is connected to the inner periphery of the dust discharge pipe 1. The positioning ring body 5 is arranged below the communication port, and the positioning ring body 5 is used to support the flap 4.

[0042] Specifically, the flap 4 and the positioning ring body 5 can be fitted together to improve the sealing performance of the flap 4.

[0043] Preferably, the upper surface of the positioning ring body 5 and the inner lower surface of the box body 1 are on the same plane.

[0044] Specifically, it is used to realize the sliding of the flap 4 onto the positioning ring body 5.

[0045] Preferably, the in-line flap valve for the dust discharge pipe of the dust collector further includes a sealing ring, and the sealing ring is arranged between the cover body 3 and the outside of the opening.

[0046] Specifically, the sealing ring is used to realize the sealing performance between the cover body 4 and the opening. This sealing ring will not wear, thus ensuring the sealing performance, effectively preventing dust leakage, improving the on-site environment, and at the same time, compared with the prior art, the sealing ring does not need to be frequently replaced and maintained, reducing the operation cost.

[0047] Preferably, the sealing ring is an asbestos sealing ring.

[0048] Specifically, the asbestos sealing ring has the properties of high temperature resistance and wear resistance, avoiding the aging of the sealing ring and effectively preventing dust leakage.

[0049] Preferably, the flap 4 includes a push plate and a sliding plate. The push plate is arranged vertically, the sliding plate is arranged horizontally, the bottom of the push plate is connected to one end of the sliding plate, and the other end of the sliding plate is arranged near the communication port.

[0050] Specifically, the push plate facilitates the operator to push or pull the plug plate 4 to move.

[0051] Preferably, the other end of the slide plate has the same cross-sectional shape as the cross-sectional shape of the blanking pipe 2.

[0052] Specifically, the slide plate effectively seals the blanking pipe 2.

[0053] Preferably, the cover body 3 is connected to the outside of the opening by a plurality of bolts.

[0054] Specifically, the cover body 3 can be fastened at the opening position through a plurality of bolts. When the plug valve is maintained or repaired, only the bolts need to be removed to take off the cover body. Compared with the prior art, it is not necessary to disassemble a plurality of components, which saves time and effort, reduces the maintenance cost, and is very convenient.

[0055] A dust collector, which includes:

[0056] The blanking pipe 2;

[0057] A plug valve is arranged inside the blanking pipe of the dust collector and is connected to the blanking pipe 2.

[0058] Preferably, the dust collector further includes:

[0059] A hopper, which is arranged above the box body 1 and is communicated with the blanking pipe 2;

[0060] A pneumatic ash conveying pump, which is arranged below the box body 1 and is communicated with the blanking pipe 2.

[0061] In summary, when the plug valve arranged inside the blanking pipe of the dust collector of the present utility model is implemented on the dust collector, when the pneumatic ash conveying pump needs to be replaced, the opening of the box body 1 is opened, and the plug plate 4 is manually pushed to move the plug plate 4 horizontally into the blanking pipe 2 to block the blanking pipe 2 and cut off the dust removal ash. On the contrary, when the pneumatic ash conveying pump is replaced, the plug plate 4 is pulled into the box body 1, the cover body 3 is connected to the opening position, and then the dust removal ash is discharged to realize the discharge of the dust removal ash. Since there is no friction relationship between the plug plate 4 of the plug valve and the opening of the box body 1, during long-term use, the position of the opening is not abraded, the sealing performance is improved, the sealing ring will not be worn, the sealing performance is improved, effectively preventing dust leakage, improving the on-site environment. Even in harsh environments such as high temperature and high pressure, the plug valve still has a certain reliability and stability, and the service life of the plug valve is increased.

[0062] To solve the problem that the sealing ring of the existing plug valve is worn, resulting in a relatively high maintenance and replacement frequency and increasing the operation cost, in this application, the sealing ring is arranged between the cover body 3 and the outside of the opening. The sealing ring will not be worn, thus ensuring the sealing performance, effectively preventing dust leakage, improving the on-site environment. At the same time, compared with the prior art, the sealing ring does not need to be frequently replaced and maintained, reducing the operation cost.

[0063] To solve the problem that multiple components need to be disassembled during the maintenance of the existing plug valve, which is time-consuming and laborious, in this application, the cover body 3 can be fastened at the opening position through multiple bolts. When the plug valve is maintained and repaired, only the bolts need to be disassembled to remove the cover body 3. Compared with the prior art, it is not necessary to disassemble multiple components, which is time-saving and labor-saving, reducing the maintenance cost and is very convenient.

[0064] The embodiments of the present invention have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments.

Claims

1. An internal plug valve in the discharge pipe of a dust collector, which is used to connect with the discharge pipe of the dust collector, is characterized in that, The plug valve includes: A box body, one end of the box body is connected to the side wall of the blanking pipe, a communication port is provided between one end of the box body and the side wall of the blanking pipe, and the other end of the box body is provided with an opening; A cover body, the cover body is detachably connected to the outside of the opening; A plug, the plug slides in the box body, and the plug can be pushed into the blanking pipe to block the blanking pipe or pulled out from the blanking pipe.

2. The built-in flap valve in the blanking pipe of a dust collector according to claim 1, characterized in that, The plug valve built in the blanking pipe of the dust collector further includes a positioning ring body, the outer periphery of the positioning ring body is connected to the inner periphery of the blanking pipe, the positioning ring body is arranged below the communication port, and the positioning ring body is used to support the plug.

3. The built-in flap valve in the blanking pipe of a dust collector according to claim 2, characterized in that The upper surface of the positioning ring body is on the same plane as the inner lower surface of the box body.

4. The built-in flap valve in the blanking pipe of a dust collector according to claim 1, characterized in that, The plug valve built in the blanking pipe of the dust collector further includes a sealing ring, and the sealing ring is arranged between the cover body and the outside of the opening.

5. The built-in flap valve in the blanking pipe of a dust collector according to claim 4, characterized in that, The sealing ring is an asbestos sealing ring.

6. The built-in flap valve in the blanking pipe of a dust collector according to claim 1, characterized in that, The plug includes a push plate and a sliding plate, the push plate is vertically arranged, the sliding plate is horizontally arranged, the bottom of the push plate is connected to one end of the sliding plate, and the other end of the sliding plate is arranged near the communication port.

7. The built-in flap valve in the blanking pipe of a dust collector according to claim 6, characterized in that, The shape of the other end of the sliding plate is the same as the cross-sectional shape of the blanking pipe.

8. The built-in flap valve in the blanking pipe of a dust collector according to claim 1, characterized in that, The cover body and the outside of the opening are connected by a plurality of bolts.

9. A dust collector, characterized in that, This dust collector includes: A blanking pipe; A plug valve built in the blanking pipe of a dust collector according to any one of claims 1-8, connected to the blanking pipe.

10. A dust collector according to claim 9, characterized in that, The dust collector further includes: A hopper, the hopper is arranged above the box body and is communicated with the blanking pipe; A pneumatic ash conveying pump, the pneumatic ash conveying pump is arranged below the box body and is communicated with the blanking pipe.

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