An automatic opening and closing anti-blocking valve special for pneumatic conveying

Abstract

The utility model discloses a kind of automatic opening and closing's pneumatic conveying special anti-blocking valve, comprising: shell, gas outlet is T type, and is set in shell, and its one end extends to shell outside to supply compressed air outlet, conveying pipe is one end in shell, other end is communicated with gas outlet, for air into conveying pipe transmission to conveying pipe, inlet pipe is set in shell, its one end extends to shell outside, other end is communicated with gas outlet, for airflow transmission to gas outlet, can make push block be affected along gas outlet length direction by air pressure thrust, push block is between conveying pipe and inlet pipe, the utility model control point is less, need not utilize electrical component control, by airflow, both material transmission can be brought, and also can dredge mode, can greatly increase the reliability of pneumatic conveying system operation.

Description

Technical Field

[0001] This utility model relates to the technical field of valves, and in particular to an automatic opening and closing pneumatic conveying anti-clogging valve. Background Technology

[0002] Pneumatic conveying is a technology for transporting granular materials, widely used in thermal power, metallurgy, chemical, and food industries. However, due to various inherent limitations of this conveying system, it cannot handle long-distance transport, and its operation is unstable and prone to blockages over longer distances. Therefore, increasing the system's air consumption is necessary, which increases both energy consumption and pipeline wear. Currently, valves used in pipeline purging devices are mostly pneumatically controlled shut-off valves or electric valves. These valves must be driven by corresponding electrical components such as solenoid valves or electric actuators. The control methods include: 1) using a pressure transmitter to convert the pressure in the pipeline into an electrical signal, which is then processed by a PLC and output to the corresponding solenoid valve to control its operation; 2) using a pressure switch to directly detect the pressure in the pipeline, transmitting the electrical signal to the solenoid valve, which then controls the valve's operation.

[0003] Using these electrical components for control has two drawbacks: firstly, the complex structure greatly increases manufacturing costs; secondly, there are too many control points, and some electrical components need to be installed outdoors, requiring rain and water protection, which is too costly and results in unstable operation, greatly reducing the reliability of the pneumatic conveying system. Utility Model Content

[0004] The purpose of this invention is to provide an automatic opening and closing pneumatic conveying anti-blocking valve that can convey materials.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an automatically opening and closing pneumatic conveying anti-clogging valve, comprising: a shell,

[0006] The air outlet is T-shaped and located inside the housing. One end extends outside the housing to provide a compressed air outlet. One end of the delivery pipe is located inside the housing, and the other end is connected to the air outlet. It is used for air to enter the delivery pipe and be transported to the delivery pipe. The air inlet pipe is located in the housing, with one end extending outside the housing and the other end connected to the air outlet. It is used for airflow to be transported to the air outlet. It can make the push block move along the length of the air outlet under the influence of air pressure thrust. The push block is located between the delivery pipe and the air inlet pipe.

[0007] Preferably, the housing is provided with a pressure gauge with one end located inside the delivery pipe.

[0008] Preferably, the delivery pipe is threaded with a sealing plug.

[0009] Preferably, a spring is fixedly connected inside the housing, and one end of the spring is fixedly connected to the push block.

[0010] Preferably, a push rod is threaded onto the housing, with one end of the push rod abutting against the side wall of the push block.

[0011] Preferably, a sealing ring is fixedly connected to the housing.

[0012] The beneficial effects of this utility model are as follows: Compared with the prior art, this utility model uses a conveying pipe installed in the air outlet to transport materials and discharge them to the outside through the air outlet. Once the air outlet is blocked, the air inlet pipe is filled with airflow, which pushes the push block to move. During the movement of the push block, the air outlet is cleared, thereby reducing the decrease in material conveying efficiency caused by blockage. At the same time, this utility model has fewer control points and does not require the use of electrical components for control. By using airflow to both transport materials and clear blockages, the reliability of the pneumatic conveying system can be greatly increased. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of one embodiment of the present invention.

[0014] Reference numerals in the attached diagram: 1. Air outlet; 2. Housing; 3. Delivery pipe; 4. Air inlet pipe; 5. Push block; 6. Pressure gauge; 7. Sealing plug; 8. Spring; 9. Push rod; 10. Sealing ring. Detailed Implementation

[0015] The following description is only a preferred embodiment of the present utility model. The scope of protection is not limited to this embodiment. All technical solutions that fall within the scope of the present utility model should be protected by the present utility model. It should also be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present utility model should also be considered within the scope of protection of the present utility model.

[0016] It should be noted that in this document, relational terms such as first and second, or "connecting plate one, connecting plate two," are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0017] The directional terms mentioned in this embodiment, such as "up," "down," "left," and "right," are merely used to help those skilled in the art understand the relationships between various features or parts in conjunction with the accompanying drawings.

[0018] In this embodiment, unless otherwise explicitly specified and limited, the terms "connection" and "fixed" should be interpreted broadly. For example, "fixed" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] like Figure 1 An automatic opening and closing pneumatic conveying anti-clogging valve includes: a housing 2; an air outlet 1, which is T-shaped and located inside the housing 2, with one end extending outside the housing 2 for particle discharge; the air outlet 1 is mainly used for material conveying; a conveying pipe 3, with one end located inside the housing 2 and the other end connected to the air outlet 1, is used for conveying particles to the air outlet 1 via the conveying pipe 3; the conveying pipe 3 is used to convey material into the air outlet 1 to achieve material conveying; and an air inlet pipe 4 is located in the housing 2, with one end extending outside the housing 2 and the other end connected to the air outlet 1. The air outlet 1 is connected and used for airflow transmission to the air outlet 1. It enables the push block 5 to move along the length direction of the air outlet 1 under the influence of air pressure. The push block 5 is located between the conveying pipe 3 and the air inlet pipe 4. When the conveying pipe 3 transmits material into the air outlet 1, the air inlet pipe 4 simultaneously transmits airflow, which enables the material to be discharged to the outside through the air outlet 1 with the flow direction of the airflow. When the air outlet 1 is blocked, the shell 2 is in a sealed state. At this time, the airflow direction changes, and the airflow pushes the feed push block 5 to move, pushing out the material, thereby clearing the air outlet 1.

[0020] A pressure gauge 6 is provided on the housing 2, with one end located inside the delivery pipe 3. The pressure gauge 6 is used to detect the pressure in the delivery pipe 3.

[0021] A sealing plug 7 is threaded onto the conveying pipe 3, which is used to seal one end of the conveying pipe 3.

[0022] A spring 8 is fixedly connected inside the housing 2. One end of the spring 8 is fixedly connected to the push block 5, and the spring 8 is used to reset the push block 5.

[0023] A push rod 9 is threaded onto the housing 2. One end of the push rod 9 is in contact with the side wall of the push block 5. The push rod 9 is used to fix the push block 5. Loosening the push rod 9 from the push block 5 will unlock the push block 5 normally.

[0024] A sealing ring 10 is fixedly connected to the housing 2, and the sealing ring 10 is used to seal the housing 2.

[0025] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. An automatically opening and closing pneumatic conveying anti-clogging valve, comprising: Shell (2), Its features are, The air outlet (1) is T-shaped and is located inside the shell (2). One end of the outlet extends outside the shell (2) to allow the particles to vent. The conveying pipe (3) is located inside the shell (2) at one end and connected to the air outlet (1) at the other end, and is used to transport the particles through the conveying pipe (3) to the air outlet (1). The air inlet pipe (4) is located on the housing (2), with one end extending outside the housing (2) and the other end connected to the air outlet (1). It is used to transmit airflow to the air outlet (1) and can make the push block (5) move along the length of the air outlet (1) under the influence of air pressure thrust. The push block (5) is located between the delivery pipe (3) and the air inlet pipe (4).

2. The automatic opening and closing pneumatic conveying anti-clogging valve according to claim 1, characterized in that, A pressure gauge (6) is provided on the housing (2), with one end located inside the delivery pipe (3).

3. The automatic opening and closing pneumatic conveying anti-clogging valve according to claim 2, characterized in that, A sealing plug (7) is threaded onto the delivery pipe (3).

4. The automatic opening and closing pneumatic conveying anti-clogging valve according to claim 1, characterized in that, A spring (8) is fixedly connected inside the housing (2), and one end of the spring (8) is fixedly connected to the push block (5).

5. The automatic opening and closing pneumatic conveying anti-clogging valve according to claim 1, characterized in that, A push rod (9) is threaded onto the housing (2), and one end of the push rod (9) is attached to the side wall of the push block (5).

6. The automatic opening and closing pneumatic conveying anti-clogging valve according to claim 1, characterized in that, A sealing ring (10) is fixedly connected to the housing (2).

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