Novel gate valve special for conveying ash

Abstract

The utility model discloses a special novel gate valve for conveying dust, which comprises a valve main body, a hole groove is arranged at the bottom end of the valve main body, an extension box is fixedly arranged at the bottom end of the valve main body, the hole groove is positioned on the inner side of the extension box, and a recovery mechanism convenient for recovering dust is arranged at the bottom end of the extension box. A sealing plate is movably arranged at the bottom end of the extension box in a penetrating mode, a motor is fixedly arranged on one side of the extension box, the rotating shaft movably extends into the extension box, and a baffle is fixedly arranged on the outer side of the rotating shaft. The sealing plate penetrates into the bottom end of the extending box, then after the valve body is closed, residual dust falls on the baffle through the hole groove, then the motor is started, the motor drives the rotating shaft to rotate, the baffle rotates towards the upper side to the lower end position, the residual dust falls on the upper end of the sealing plate, then the rotating shaft continues to rotate, and the baffle is reset. Therefore, the situation that the valve body cannot be normally closed due to dust accumulation on the baffle is prevented, and normal use of the valve body is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of gate valve equipment, in particular to a new gate valve specially used for ash conveying. Background Art

[0002] A gate valve seals through contact between the valve seat and the gate disc. When the gate valve is closed, the medium pressure can press the sealing surface of the gate disc against the valve seat on the other side to ensure the sealing surface is sealed, that is, self-sealing. Alternatively, external force can be used to forcibly press the gate disc against the valve seat to ensure the sealing surface is sealed, that is, forced sealing. Gate valves can only be fully opened and fully closed and cannot be adjusted or throttled.

[0003] Ash transportation is generally controlled by a gate valve. When the gate valve is closed during use, some transported ash remains between the gate plate and the valve seat. After long-term use, the thickness of the transported ash becomes thicker, making it impossible for the gate plate to be completely closed, and the valve cannot play its due role. This poses a great safety hazard, so a device is urgently needed to solve the above problem. Utility Model Content

[0004] The purpose of the utility model is to provide a new type of gate valve specially used for ash conveying, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a new type of gate valve specially used for ash conveying, comprising a valve body, a hole groove is opened at the bottom end of the valve body, an extension box is fixedly arranged at the bottom end of the valve body, the hole groove is located on the inner side of the extension box, a recovery mechanism for convenient dust recovery is provided at the bottom end of the extension box, a sealing plate is movably inserted into the bottom end of the extension box, a motor is fixedly arranged on one side of the extension box, a rotating shaft is fixedly arranged at the output end of the motor, the rotating shaft movably extends to the inside of the extension box, a baffle is fixedly arranged on the outside of the rotating shaft, when in use, the sealing plate is inserted into the bottom end of the extension box, and then after the valve body is closed, the remaining dust falls on the baffle through the hole groove, and then the motor is started, the motor drives the rotating shaft to rotate, so that the baffle rotates to the upper side to the lower end position, so that the remaining dust falls on the upper end of the sealing plate, and then the rotating shaft continues to rotate, so that the baffle is reset, thereby preventing dust from accumulating on the baffle, causing the valve body to fail to close normally, thereby ensuring the normal use of the valve body, and when the valve body is used normally, the baffle and the sealing plate cooperate to perform sealing work.

[0006] Preferably, the valve body also includes a handwheel, a screw and a gate plate, the gate plate is slidably arranged inside the valve body, the screw is arranged at the top of the gate plate through a thread, and movably extends to the outside of the valve body, the handwheel is fixed at the top of the screw rod, and the screw rod is rotated by the handwheel during use, so that the gate plate moves along the screw rod, thereby controlling the opening and closing of the valve body.

[0007] Preferably, the recycling mechanism includes a limit slot, a recycling box, a spring and a limit rod, the limit slot is opened on the outside of the extension box, the recycling box is movably sleeved on the lower end of the extension box, the limit rod is movably inserted and arranged on the outside of the recycling box, the spring is fixed in a position between the limit rod and the recycling box, the limit rod fits into the limit slot, and when in use, the spring force causes the limit rod to penetrate into the limit slot, so that the recycling box is fixed at the lower end of the extension box. During cleaning, the sealing plate is pulled out and then reset, and the dust on the sealing plate falls into the recycling box and is stored. Thereafter, the limit rod is moved so that the limit rod is disengaged from the limit slot and the recycling box can be disassembled, which is convenient for centralized dust processing.

[0008] Preferably, the sealing plate is in movable sealing contact with the extension box, and one side of the sealing plate extends to the outside of the extension box. At the same time, a groove is provided on the sealing plate to facilitate the movement of the sealing plate.

[0009] Preferably, one side of the baffle is in close contact with the inner wall of the extension box, and the contact position between the baffle and the extension box is in movable sealing contact.

[0010] Preferably, there are two limiting grooves, which are symmetrically opened on both sides of the extension box.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. When using the utility model, the sealing plate is inserted into the bottom end of the extension box. After the valve body is closed, the remaining dust falls onto the baffle through the hole groove. Then the motor is started, and the motor drives the shaft to rotate, so that the baffle rotates upward to the lower end position, so that the remaining dust falls onto the upper end of the sealing plate. Then the shaft continues to rotate, so that the baffle is reset. This prevents dust from accumulating on the baffle, causing the valve body to be unable to close normally, and ensures the normal use of the valve body.

[0013] 2. When the utility model is in use, the spring force causes the limit rod to penetrate into the limit groove, so that the recovery box is fixed at the lower end of the extension box. When cleaning, the sealing plate is pulled out and then reset. The dust on the sealing plate falls into the recovery box and is stored. Then, the limit rod is moved so that the limit rod is out of the limit groove and the recovery box can be disassembled, which is convenient for the centralized treatment of dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a new type of gate valve for ash conveying in the utility model;

[0015] Figure 2 This is a cross-sectional view of a new type of gate valve for ash conveying in the utility model;

[0016] Figure 3This is an enlarged schematic diagram of a new type of gate valve A specially used for ash conveying in the present utility model.

[0017] In the figure: 1. Valve body; 2. Screw; 3. Handwheel; 4. Gate; 5. Hole slot; 6. Extension box; 7. Motor; 8. Rotating shaft; 9. Baffle; 10. Sealing plate; 11. Recovery box; 12. Limit slot; 13. Limit rod; 14. Spring. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1-3 The utility model provides a new type of gate valve specially used for ash conveying, including a valve body 1, a hole groove 5 is opened at the bottom end of the valve body 1, an extension box 6 is welded and fixed to the bottom end of the valve body 1, the hole groove 5 is located on the inner side of the extension box 6, and the bottom end of the extension box 6 is provided with a recovery mechanism for convenient dust recovery, a sealing plate 10 is movably inserted into the bottom end of the extension box 6, and the contact position between the sealing plate 10 and the extension box 6 is a movable sealing contact, and one side of the sealing plate 10 extends to the outside of the extension box 6, and at the same time, a groove body for convenient movement of the sealing plate 10 is opened on the sealing plate 10, a motor 7 is fixed to one side of the extension box 6 by bolts, and a rotating shaft 8 is fixed to the output end of the motor 7 by a coupling, and the rotating shaft 8 is movably extended to the inside of the extension box 6, and a stopper is welded and fixed to the outside of the rotating shaft 8. Plate 9, one side of the baffle 9 is tightly attached to the inner wall of the extension box 6, and the contact position between the baffle 9 and the extension box 6 is a movable sealing contact. When in use, the sealing plate 10 is inserted into the bottom end of the extension box 6, and then after the valve body 1 is closed, the residual dust at this time falls on the baffle 9 through the hole groove 5, and then the motor 7 is started, and the motor 7 drives the rotating shaft 8 to rotate, so that the baffle 9 rotates to the upper side to the lower end position, so that the residual dust falls on the upper end of the sealing plate 10, and then the rotating shaft 8 continues to rotate, so that the baffle 9 is reset, thereby preventing dust from accumulating on the baffle 9, causing the valve body 1 to be unable to close normally, thereby ensuring the normal use of the valve body 1, and when the valve body 1 is used normally, the baffle 9 and the sealing plate 10 cooperate to perform sealing work.

[0020] The valve body 1 also includes a handwheel 3, a screw 2 and a gate 4. The gate 4 slides inside the valve body 1. The screw 2 is inserted into the top of the gate 4 through a thread and extends to the outside of the valve body 1. The handwheel 3 is fixed to the top of the screw 2 by a bolt. When in use, the screw 2 is rotated by the handwheel 3, so that the gate 4 moves along the screw 2, thereby controlling the opening and closing of the valve body 1.

[0021] The recycling mechanism includes a limit slot 12, a recycling box 11, a spring 14 and a limit rod 13. The limit slot 12 is opened on the outside of the extension box 6. There are two limit slots 12, which are symmetrically opened on both sides of the extension box 6. The recycling box 11 is movably sleeved on the lower end of the extension box 6, and the limit rod 13 is movably inserted into the outside of the recycling box 11. The spring 14 is welded and fixed between the limit rod 13 and the recycling box 11. The limit rod 13 fits into the limit slot 12. When in use, the elastic force of the spring 14 causes the limit rod 13 to penetrate into the limit slot 12, so that the recycling box 11 is fixed to the lower end of the extension box 6. When cleaning, the sealing plate 10 is pulled out and then reset. The dust on the sealing plate 10 falls into the recycling box 11 and is stored. Then, the limit rod 13 is moved so that the limit rod 13 is disengaged from the limit slot 12 and the recycling box 11 can be disassembled, which is convenient for centralized dust processing.

[0022] After the dust has been removed from the valve body 1, the dust on the sealing plate 10 falls into the inner part of the recovery box 11 and is stored therein. Then the limiting rod 13 is moved so that the limiting rod 13 is disengaged from the limiting groove 12 and the recovery box 11 can be disassembled, which is convenient for the centralized disposal of dust.

[0023] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of gate valve for ash conveying, comprising a valve body (1), characterized in that: A hole groove (5) is provided at the bottom end of the valve body (1), an extension box (6) is fixedly provided at the bottom end of the valve body (1), the hole groove (5) is located on the inner side of the extension box (6), a recovery mechanism for conveniently recovering dust is provided at the bottom end of the extension box (6), a sealing plate (10) is movably inserted into the bottom end of the extension box (6), a motor (7) is fixedly provided on one side of the extension box (6), a rotating shaft (8) is fixedly provided at the output end position of the motor (7), the rotating shaft (8) is movably extended to the inside of the extension box (6), and a baffle (9) is fixedly provided on the outside of the rotating shaft (8).

2. A new type of gate valve for ash conveying according to claim 1, characterized in that: The valve body (1) further comprises a hand wheel (3), a screw rod (2) and a gate plate (4); the gate plate (4) is slidably arranged inside the valve body (1); the screw rod (2) is arranged on the top of the gate plate (4) through a thread and movably extends to the outside of the valve body (1); the hand wheel (3) is fixed to the top of the screw rod (2).

3. A new type of gate valve for ash conveying according to claim 2, characterized in that: The recycling mechanism comprises a limiting groove (12), a recycling box (11), a spring (14) and a limiting rod (13); the limiting groove (12) is provided on the outside of the extension box (6); the recycling box (11) is movably sleeved on the lower end of the extension box (6); the limiting rod (13) is movably inserted and arranged on the outside of the recycling box (11); the spring (14) is fixed at a position between the limiting rod (13) and the recycling box (11); and the limiting rod (13) is fitted with the limiting groove (12).

4. A new type of gate valve for ash conveying according to claim 3, characterized in that: The contact position between the sealing plate (10) and the extension box (6) is in movable sealing contact, and one side of the sealing plate (10) extends to the outside of the extension box (6). At the same time, a groove body is provided on the sealing plate (10) for facilitating the movement of the sealing plate (10).

5. A new type of gate valve for ash conveying according to claim 4, characterized in that: One side of the baffle (9) is in close contact with the inner wall of the extension box (6), and the contact position between the baffle (9) and the extension box (6) is in movable sealing contact.

6. A new type of gate valve for ash conveying according to claim 5, characterized in that: There are two limit slots (12) symmetrically arranged on both sides of the extension box (6).

Images