Butterfly valve with blowing function for powder production

Abstract

The utility model provides a butterfly valve with a blowing function for powder production, which comprises a valve plate, a valve body and a valve rod, the valve plate is rotatably connected in the valve body through the valve rod, a main channel is arranged in the valve rod, a group of branch channels communicated with the main channel are arranged in the valve plate, and a blowing port is arranged at the end of each branch channel. According to the utility model, high-pressure gas can be conveyed into the valve body through the valve plate, and the high-pressure gas conveyed into the valve body can blow away and dredge materials above the valve plate, so that the problems that the powder materials are stacked and bridged above the valve plate in the production process of the powder materials and the materials are blocked in the production process of the powder materials can be solved, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a butterfly valve with an air blowing function used in powder production, belonging to the technical field of butterfly valves. Background Art

[0002] In many automated production lines, the powder in the tray needs to be leveled and evened before entering the next process. Currently, the powder falls into the tray from the top outlet, forming a shape that is high in the middle and low around the edges, with high density in the middle and loose around the edges. Therefore, the powder in the tray needs to be leveled.

[0003] The existing flattening device can only perform preliminary flattening, and the vibration will affect the operation of other equipment. The vibration component has a rigid connection, which affects the vibration effect, and the vibration of the connected components affects their lifespan. In addition, the metal of the stirring device is in direct contact with the powder, which can easily contaminate the powder.

[0004] In many powder material production processes, butterfly valves are used. However, the powder material above the butterfly valve will accumulate and bridge above the butterfly valve, causing failures in the entire production process and reducing production efficiency. Therefore, it is necessary to solve the problem of material blockage above the butterfly valve to improve production automation and increase production efficiency. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model proposes a butterfly valve with a blowing function for powder production, so as to solve the problem of powder material accumulation and blockage above the butterfly valve during the production process.

[0006] The technical solution of the utility model is: a butterfly valve with a blowing function for powder production, comprising a valve plate, a valve body and a valve stem. The valve plate is rotatably connected to the inside of the valve body through the valve stem. A main channel is opened in the valve stem, and a group of branch channels connected to the main channel are opened inside the valve plate. A blowing port is provided at the end of each branch channel.

[0007] Furthermore, the branch channels are symmetrically distributed on both sides of the main channel.

[0008] Furthermore, the branch channels are distributed in parallel at equal intervals inside the valve plate.

[0009] Furthermore, an air inlet connected to the main channel is provided at the end of the valve stem.

[0010] Furthermore, a polytetrafluoroethylene sealing layer is installed on the inner wall of the valve body, and the surface of the valve plate is also covered with a polytetrafluoroethylene sealing layer. The air port passes through the polytetrafluoroethylene sealing layer on the valve plate and is connected to the branch channel.

[0011] Due to the adoption of the above technical solution, the advantages of the utility model are: the utility model can transport high-pressure gas to the inside of the valve body through the valve plate, and the high-pressure gas transported to the inside can blow and clear the material above the valve plate, which can solve the problem of powder material accumulation and bridging above the valve plate during the production process of powder material, prevent the blockage problem in the production of powder material, and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the present utility model.

[0013] Explanation of the reference numerals: 1-air inlet; 2-main channel; 3-branch channel; 4-polytetrafluoroethylene sealing layer; 5-valve plate; 6-valve body; 7-blowing port; 8-valve stem. DETAILED DESCRIPTION

[0014] 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.

[0015] Example

[0016] See also Figure 1 The utility model discloses a butterfly valve with a blowing function for powder production, comprising a valve plate 5, a valve body 6 and a valve stem 8. The valve plate 5 is rotatably connected to the inside of the valve body 6 through the valve stem 8. A main channel 2 is opened in the valve stem 8. A group of branch channels 3 connected to the main channel 2 are opened in the valve plate 5, and a blowing port 7 is provided at the end of each branch channel 3.

[0017] The branch channels 3 are symmetrically distributed on both sides of the main channel 2 . The branch channels 3 are evenly spaced and parallelly distributed inside the valve plate 5 , ensuring that the high-pressure gas can be evenly transported to the inside of the valve body 6 .

[0018] The end of the valve stem 8 is provided with an air inlet 1 connected to the main channel 2, so as to facilitate connection with an external high-pressure air pipe through the air inlet 1.

[0019] A polytetrafluoroethylene sealing layer 4 is installed on the inner wall of the valve body 6, and the surface of the valve plate 5 is also coated with the polytetrafluoroethylene sealing layer 4. The air inlet 7 passes through the polytetrafluoroethylene sealing layer 4 on the valve plate 5 and communicates with the branch channel 3. Since both the valve body 6 and the valve plate 5 are coated with the polytetrafluoroethylene sealing layer 4, the wear of the valve body 6 and the valve plate 5, which may cause metal impurities to be introduced into the powder material, is avoided.

[0020] The working principle of this utility model:

[0021] High-pressure gas enters the main channel 2 through the air inlet 1. The main channel 2 distributes the high-pressure gas to each branch channel 3. The gas in the branch channel 3 is blown out through the blowing port 7. When the solenoid valve is energized, the actuator operates to open the valve plate 5, and the high-pressure gas is blown out from the blowing port 7. When the solenoid valve is de-energized, the actuator pushes in the opposite direction to close the valve plate 5. The polytetrafluoroethylene sealing layer 4 covering the valve plate 5 has an interference fit with the polytetrafluoroethylene sealing layer 4 inside the valve body 6, sealing the blowing port 7 to prevent air leakage. During operation, the high-pressure gas blown out of the blowing port 7 can clear the powder material accumulated and blocked above the valve.

[0022] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Those skilled in the art may improve and modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein; and all these modifications and replacements should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A butterfly valve with a blowing function for powder production, comprising a valve plate (5), a valve body (6) and a valve stem (8), wherein the valve plate (5) is rotatably connected to the interior of the valve body (6) via the valve stem (8), and is characterized in that: A main channel (2) is provided in the valve stem (8), a group of branch channels (3) communicating with the main channel (2) are provided in the valve plate (5), and an air blowing port (7) is provided at the end of each branch channel (3).

2. The butterfly valve with air blowing function for powder production according to claim 1 is characterized in that: The branch channels (3) are symmetrically distributed on both sides of the main channel (2).

3. The butterfly valve with air blowing function for powder production according to claim 2 is characterized in that: The branch channels (3) are distributed inside the valve plate (5) at equal intervals and in parallel.

4. The butterfly valve with air blowing function for powder production according to claim 1 is characterized in that: An air inlet (1) connected to the main channel (2) is provided at the end of the valve stem (8).

5. The butterfly valve with air blowing function for powder production according to claim 1 is characterized in that: A polytetrafluoroethylene sealing layer (4) is installed on the inner wall of the valve body (6), and the surface of the valve plate (5) is also coated with a polytetrafluoroethylene sealing layer (4). The air outlet (7) passes through the polytetrafluoroethylene sealing layer (4) on the valve plate (5) and communicates with the branch channel (3).

Images