Bell jar valve matched with automatic ash removal device

Abstract

The utility model discloses a bell jar valve matched with an automatic ash removal device, which is characterized in that an annular air source pipe is arranged outside a valve body of the bell jar valve, the annular air source pipe is provided with a plurality of distribution joints, each distribution joint is connected with an electromagnetic valve and a blowing device through a distribution pipeline, and the electromagnetic valve can control the corresponding blowing device to blow air. All the electromagnetic valves are connected with the controller, the controller starts the corresponding electromagnetic valves at regular time to enable the corresponding blowing devices to blow air, all the blowing devices sequentially blow air, ash removal is carried out on the sealing face, making contact with the valve body, of the valve element after the valve element falls down and is closed, and the situation that the valve body is not tightly closed due to the fact that ash is accumulated on the sealing face of the bell jar valve is effectively prevented. And meanwhile, full-automatic control over dust removal operation is achieved, high efficiency and convenience are achieved, and production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of bell valves, in particular to a bell valve equipped with an automatic dust cleaning device. Background Art

[0002] Bell valves are primarily used as on / off valves for high-temperature dusty gases. They feature a compact structure, small footprint, tight airtightness, and high reliability, making them widely used in steel blast furnaces and nonferrous metallurgy. Their operating principle is that the upper portion is a cylindrical or conical bell connected to an upper movable rod, with the lower portion being the air inlet. When the bell is lowered, it seals the lower air inlet; when it is raised, the valve opens. The outlet is located on the side.

[0003] In the nonferrous smelting industry, the diverse nature of soot, resulting from the complex nature of raw materials, has exposed several issues during use. These include: Soot easily accumulates when the bell valve is closed, making it difficult to open; or ash accumulates on the sealing surface, causing the valve core to drop, resulting in a loose closure and smoke leakage. These issues disrupt normal production, pose safety risks when personnel enter to handle the soot, and increase labor intensity. Utility Model Content

[0004] (1) Technical problem to be solved: In view of the problem that smoke ash easily accumulates on the existing bell valve when it is closed, making it difficult to open, or smoke ash accumulates on the sealing surface and the valve core falls, causing it to not close tightly and leak smoke, the utility model provides a bell valve with an automatic ash cleaning device that can solve the above problems.

[0005] (2) The technical solutions adopted by this utility model are as follows:

[0006] A bell valve equipped with an automatic dust cleaning device, wherein an annular air source pipe is arranged outside the valve body of the bell valve, and a plurality of distribution joints are distributed on the annular air source pipe, each distribution joint is connected to the solenoid valve and the injector through a distribution pipeline, the injector passes through the valve body of the bell valve, and the nozzle of the injector is directed toward the sealing surface of the bell valve that contacts the valve body after the valve core falls and closes. The annular air source pipe is connected to the air supply device through a compressed air duct, and all solenoid valves are connected to a controller.

[0007] A further technical solution is that a control valve and an air source triplex are provided on the compressed air duct.

[0008] A further technical solution is that the ejector is a Venturi tube jet device structure.

[0009] (3) Due to the adoption of the above technical solution, the beneficial effects of the utility model are as follows: an annular air source pipe is provided outside the valve body of the bell valve, and a plurality of distribution joints are provided on the annular air source pipe. Each distribution joint is connected to the solenoid valve and the injector through a distribution pipeline. The solenoid valve can control the corresponding injector to blow air. All the solenoid valves are connected to the controller. The controller opens the corresponding solenoid valve at a fixed time to make the corresponding injector blow air. Each injector blows air in turn, so as to clean the sealing surface that contacts the valve body after the valve core falls and closes, effectively preventing the accumulation of soot on the sealing surface of the bell valve, which may cause the valve body to be loosely closed. At the same time, the cleaning operation is fully automatically controlled, which is efficient and convenient, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0011] Figure 2 It is a structural schematic diagram of the injector of the present invention. DETAILED DESCRIPTION

[0012] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0013] like Figure 1 and Figure 2 shown.

[0014] A bell valve equipped with an automatic dust cleaning device, an annular air source pipe 4 is provided outside the valve body 9 of the bell valve, and a plurality of distribution joints 5 are distributed on the annular air source pipe 4, each distribution joint 5 is connected to the solenoid valve 6 and the injector 8 through the distribution pipeline 7, the injector 8 passes through the valve body 9 of the bell valve, and the nozzle of the injector 8 is directed toward the sealing surface of the valve core of the bell valve that contacts the valve body 9 after it falls and closes. The annular air source pipe 4 is connected to the air supply device through the compressed air duct 1, and all the solenoid valves 6 are connected to the controller 10.

[0015] The compressed air duct 1 is provided with a control valve 2 and an air source triplex.

[0016] During use, the controller 10 is an automated control system based on a PLC. The interval and time of spraying of the solenoid valve 6 are set in the PLC control system. The working procedure of the solenoid valve 6 is to open one by one to perform the spraying operation. During normal production, the control valve 2 is normally open, and the compressed air is filtered through the air source triplex 3 and enters the annular air source pipe 4. According to the set program, when the first solenoid valve 6 is opened, the air in the compressed air duct 1 passes through the annular air source pipe 4 and enters the injector 8. The high-speed gas ejected from the outlet of the injector 8 cleans the dust accumulated on the sealing surface of the valve core and the valve body 9 of the bell valve, and then the solenoid valve 6 is closed, and then the next solenoid valve 6 is opened for the dust cleaning operation.

[0017] The air source triple piece 3 can filter water in the air through the filter element, lubricate the pneumatic element with oil mist, and adjust the outlet pressure according to the dust removal condition.

[0018] The annular air source pipe 4 is arranged outside the bell valve and is provided with distribution joints 5, the number of which is consistent with the number of the blowers 8, so as to ensure that there is no dead angle in the blowing area.

[0019] The distribution pipeline 7 is a metal flexible connection pipe, and the connection between the distribution pipeline 7 and the electromagnetic valve 6 and the blower 8 is pipe threaded connection, which is convenient for maintenance.

[0020] The blower 8 is a Venturi tube jet device structure, which can effectively remove dust by changing the wind speed, and the installation angle of the blowing pipe is inclined downward by 10°.

[0021] The air volume of the blower 8 can be adjusted by the control valve 2, and the opening of the electromagnetic valve 6 is controlled by the PLC control system, and the control mode includes manual control and automatic control.

[0022] The annular air source pipe 4 is arranged outside the valve body 9 of the bell valve, and is provided with a plurality of distribution joints 5, each of which is connected with the electromagnetic valve 6 and the blower 8 through the distribution pipeline 7, the electromagnetic valve 6 can control the corresponding blower 8 to blow, all the electromagnetic valves 6 are connected with the controller 10, the controller 10 opens the corresponding electromagnetic valve 6 at regular intervals to make the corresponding blower 8 blow, each blower 8 blows in turn to remove dust from the sealing surface of the valve core after falling and contacting the valve body 9, effectively prevent the valve body 9 from being closed tightly due to the dust accumulation on the sealing surface of the bell valve, and realize automatic control of the dust removal operation, which is efficient and convenient and improves the production efficiency.

[0023] The above is only a preferred embodiment of the present application.

Claims

1. A bell valve with an automatic dust cleaning device, characterized in that: An annular air source pipe (4) is provided outside the valve body (9) of the bell valve, and a plurality of distribution joints (5) are distributed on the annular air source pipe (4). Each distribution joint (5) is connected to the electromagnetic valve (6) and the injector (8) through the distribution pipeline (7). The injector (8) passes through the valve body (9) of the bell valve. The nozzle of the injector (8) is directed toward the sealing surface of the valve core of the bell valve that contacts the valve body (9) after the valve core falls and closes. The annular air source pipe (4) is connected to the air supply device through the compressed air pipeline (1), and all the electromagnetic valves (6) are connected to the controller (10).

2. The bell valve of the automatic dust cleaning device according to claim 1 is characterized in that: The compressed air pipeline (1) is provided with a control valve (2) and an air source triplex (3).

3. The bell valve of the automatic dust cleaning device according to claim 1 is characterized in that: The ejector (8) is a Venturi tube jet device structure.

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