A new type of pneumatic powder material special valve

Abstract

The utility model discloses a novel pneumatic powder material special valve relates to powder material conveying control equipment technical field, including frame, the inside fixed mounting of frame has upper sieve hole plate, the inside fixed mounting of frame has guide rail, the upper of guide rail is provided with lower sieve hole plate, one side fixed mounting of lower sieve hole plate has connecting mechanism. The novel pneumatic powder material special sieve plate valve disclosed by the utility model has the structure more simple than traditional powder valve in the process of using, reduces the use of complex spare parts, reduces the processing difficulty and production cost, and the sieve hole plate can be manufactured in the mode such as mechanical processing (such as stamping, laser cutting etc.

Description

Technical Field

[0001] This utility model relates to the technical field of powder material conveying control equipment, and in particular to a novel pneumatic valve for powder materials. Background Technology

[0002] In industrial production such as metallurgy and chemicals, the cooling and conveying of high-temperature powder materials is a common process. For example, in the cooling process of iron powder, precise flow control is required to ensure the stability and quality of subsequent processing; the conveying of alumina particles on the production line also places strict requirements on flow control. Currently, valves used for flow control of powder materials on the market have many problems. Traditional powder valves, such as butterfly valves and gate valves, are prone to structural deformation due to thermal expansion and contraction in high-temperature environments, leading to decreased sealing performance and powder leakage, which affects the production environment and product quality. Furthermore, these valves have complex regulating mechanisms, are difficult to manufacture, and have high maintenance costs, making them unsuitable for frequent flow adjustments and start-stop operations involving high-temperature powder materials. In addition, some electrically driven valves are prone to motor overheating and damage in high-temperature environments, resulting in low reliability and failing to meet the continuous operation requirements of high-temperature powder material processing. Therefore, there is an urgent need for a new type of dedicated powder valve that is simple in structure, resistant to high temperatures, and easy to adjust and maintain. Utility Model Content

[0003] This utility model discloses a novel pneumatic valve for powder materials, which aims to solve the technical problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A novel pneumatic valve for powder materials includes a frame, an upper screen plate fixedly installed inside the frame, a guide rail fixedly installed inside the frame, a lower screen plate arranged above the guide rail, and a connecting mechanism fixedly installed on one side of the lower screen plate.

[0005] The frame is provided with an upper flange and a lower flange. The frame is fixedly connected to the upper flange and the lower flange by stiffening plates. A semi-circular plate is fixedly installed on the inner wall of the frame. Bolts are threadedly connected to the semi-circular plate, and the top of the bolts contacts the bottom of the upper screen plate.

[0006] In a preferred embodiment, the upper screen plate is firmly fixed to the frame by welding or threaded connection. The upper screen plate has multiple screen holes (such as round or square) evenly distributed. The size and number of these holes are precisely designed according to the flow control requirements to ensure that the powder material can pass through smoothly and achieve initial flow distribution.

[0007] In a preferred embodiment, the lower screen plate has the same structure and dimensions as the upper screen plate, and also has screen holes corresponding to those on the upper screen plate. The lower screen plate is mounted on the guide rail or slide groove of the frame and can reciprocate linearly in the horizontal direction under the drive of the pneumatic actuator.

[0008] In a preferred embodiment, the lower sieve plate is slidably connected to the upper surface of the guide rail, and the lower surface of the lower sieve plate is provided with a groove for the guide rail to pass through.

[0009] In a preferred embodiment, a motor bracket is fixedly installed on one side of the frame, and motor support plates are fixedly installed on both sides of the motor bracket.

[0010] In a preferred embodiment, a pull rod is provided inside the motor bracket, a clamping element is fixedly installed at one end of the pull rod, and a sealing element is fixedly installed on one side of the clamping element.

[0011] In a preferred embodiment, a threaded hole is provided on the semicircular plate for a bolt to pass through, and the threaded hole is threadedly connected to the bolt.

[0012] Pneumatic actuator: High-temperature resistant pneumatic components (such as high-temperature resistant cylinders, pneumatic motors, etc.) are used. They are installed outside the frame and connected to the lower screen plate. The pneumatic actuator is connected to the external compressed air supply system through an air source pipeline. After receiving the control signal, it drives the lower screen plate to move. In order to improve the stability and reliability of the pneumatic actuator, pneumatic control components, such as solenoid valves, pressure reducing valves, and speed regulating valves, are also provided to accurately control the action speed and stroke of the pneumatic actuator, so as to achieve precise positioning of the lower screen plate and fine adjustment of the flow rate.

[0013] As can be seen from the above, the novel pneumatic valve for powder materials provided by this utility model has the following technical effects.

[0014] Firstly, this new type of pneumatic sieve plate valve for powder materials has a simpler structure compared to traditional powder valves, reducing the use of complex parts, lowering processing difficulty and production costs. The sieve plate can be manufactured by machining (such as stamping, laser cutting, etc.) or CNC machining, ensuring processing accuracy and excellent high-temperature resistance. All valve components are made of high-temperature resistant materials. In particular, the pneumatic actuator is specially designed and made of selected materials, enabling stable operation in high-temperature environments. This avoids structural deformation and component damage caused by high temperatures, improving the reliability and service life of the valve.

[0015] Secondly, the adjustment process is highly automated and simple and quick to operate because the lower screen plate is driven by a pneumatic actuator. Moreover, the connection between the lower screen plate and the frame is easy to disassemble and install. When maintenance is required, the lower screen plate can be quickly disassembled to clean or replace the screen holes, reducing maintenance time and labor intensity. In addition, the pneumatic actuator has relatively few parts, making troubleshooting and repair more convenient. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a top view of the structure of this utility model.

[0018] Figure 3 This is a first-view side sectional structural diagram of the present invention.

[0019] Figure 4 This is a top-section structural diagram of the present invention.

[0020] Figure 5 This is a schematic diagram of the second-view side section structure of this utility model.

[0021] In the attached diagram: 1. Frame; 2. Seal; 3. Tie rod; 4. Clamping component; 5. Lower screen plate; 6. Upper screen plate; 7. Connecting mechanism; 8. Motor support plate; 9. Motor bracket; 10. Guide rail; 11. Upper flange; 12. Lower flange; 13. Rib plate; 14. Semicircular plate; 15. Bolt. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figures 1-5A novel pneumatic valve for powder materials includes a frame 1. An upper screen plate 6 is fixedly installed inside the frame 1. A guide rail 10 is also fixedly installed inside the frame 1. A lower screen plate 5 is positioned above the guide rail 10. A connecting mechanism 7 is fixedly installed on one side of the lower screen plate 5. The upper screen plate 6 is firmly fixed to the frame 1 by welding and threaded connection. The upper screen plate 6 has multiple screen holes evenly distributed, such as round or square, with sizes and quantities precisely designed according to flow control requirements to ensure smooth passage of powder materials and initial flow distribution. The lower screen plate 5 has the same structure and dimensions as the upper screen plate 6, and also has screen holes corresponding to those on the upper screen plate 6. The lower screen plate 5 is installed... Mounted on the guide rail 10 or slide groove of the frame 1, it can reciprocate linearly in the horizontal direction under the drive of the pneumatic actuator. The lower screen plate 5 is slidably connected to the upper surface of the guide rail 10, and the lower surface of the lower screen plate 5 is provided with a slide groove for the guide rail 10 to pass through. The lower screen plate 5 is driven by the pneumatic actuator, and the adjustment process is highly automated and simple and quick to operate. Moreover, the connection between the lower screen plate 5 and the frame 1 is easy to disassemble and install. When maintenance is required, the lower screen plate 5 can be quickly disassembled to clean or replace the screen holes, reducing maintenance time and labor intensity. In addition, the pneumatic actuator has relatively few parts, and troubleshooting and maintenance are also relatively convenient.

[0024] The frame 1 has an upper flange 11 and a lower flange 12 on its surface. The frame 1 is fixedly connected to the upper flange 11 and the lower flange 12 by stiffening plates 13. A semi-circular plate 14 is fixedly installed on the inner wall of the frame 1. Bolts 15 are threaded onto the semi-circular plate 14. The top of the bolts 15 contacts the bottom of the upper screen plate 6. A motor bracket 9 is fixedly installed on one side of the frame 1. Motor support plates 8 are fixedly installed on both sides of the motor bracket 9. A tie rod 3 is provided inside the motor bracket 9. A clamping element 4 is fixedly installed at one end of the tie rod 3. A sealing element 2 is fixedly installed on one side of the clamping element 4. A bolt supply is provided on the semi-circular plate 14. The 15-hole threaded connection between the 15-hole threaded connection and the bolt thread makes the structure simpler than traditional powder valves during use. This reduces the use of complex parts, lowers processing difficulty and production costs. The sieve plate can be manufactured by mechanical processing such as stamping, laser cutting or CNC machining, ensuring processing accuracy and excellent high-temperature resistance. All valve components are made of high-temperature resistant materials. In particular, the pneumatic actuator is specially designed and material-selected, enabling stable operation in high-temperature environments. This avoids structural deformation and component damage caused by high temperatures, improving the reliability and service life of the valve.

[0025] Pneumatic actuator: High-temperature resistant pneumatic components such as high-temperature resistant cylinders and pneumatic motors are used. They are installed outside the frame 1 and connected to the lower screen plate 5. The pneumatic actuator is connected to the external compressed air supply system through an air source pipeline. After receiving the control signal, it drives the lower screen plate 5 to move. In order to improve the stability and reliability of the pneumatic actuator, pneumatic control components such as solenoid valves, pressure reducing valves, and speed regulating valves are also provided to accurately control the action speed and stroke of the pneumatic actuator, so as to achieve precise positioning of the lower screen plate 5 and fine adjustment of the flow rate.

[0026] Working principle: When it is necessary to adjust the flow rate of powder material, the pneumatic actuator receives the control signal and drives the lower screen plate 5 to move along the guide rail 10 or the slide groove. The relative displacement between the screen holes of the lower screen plate 5 and the upper screen plate 6 is generated. By changing the area of ​​the overlapping part of the upper and lower screen holes, the flow rate of powder material is controlled. When the upper and lower screen holes are completely overlapped, the valve is in the fully open state and the flow rate of powder material reaches the maximum. As the lower screen plate 5 moves, the overlapping area of ​​the screen holes gradually decreases, and the flow rate of powder material decreases accordingly. When the lower screen plate 5 moves to make the upper and lower screen holes completely misaligned, the valve is in the closed state, realizing the cut-off of powder material. By precisely controlling the action of the pneumatic actuator, the continuous and stable adjustment of the flow rate of powder material can be achieved, meeting the flow control requirements under different production conditions.

[0027] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A novel pneumatic valve for powder materials, comprising a frame (1), characterized in that, The frame (1) is fixedly installed with an upper screen plate (6), and a guide rail (10) is fixedly installed inside the frame (1). A lower screen plate (5) is provided above the guide rail (10), and a connecting mechanism (7) is fixedly installed on one side of the lower screen plate (5). The surface of the frame (1) is provided with an upper flange (11) and a lower flange (12). The frame (1) is fixedly connected to the upper flange (11) and the lower flange (12) by a stiffening plate (13). A semi-circular plate (14) is fixedly installed on the inner wall of the frame (1). A bolt (15) is threaded on the semi-circular plate (14). The top of the bolt (15) contacts the bottom of the upper screen plate (6).

2. The novel pneumatic valve for powder materials according to claim 1, characterized in that, The upper sieve plate (6) and the frame (1) are firmly fixed by welding or threaded connection, and multiple sieve holes are evenly distributed on the upper sieve plate (6).

3. The novel pneumatic valve for powder materials according to claim 1, characterized in that, The lower sieve plate (5) has the same structure and size as the upper sieve plate (6), and is also distributed with sieve holes corresponding to those of the upper sieve plate (6).

4. The novel pneumatic valve for powder materials according to claim 1, characterized in that, The lower sieve plate (5) is slidably connected to the upper surface of the guide rail (10), and the lower surface of the lower sieve plate (5) is provided with a groove for the guide rail (10) to pass through.

5. A novel pneumatic valve for powder materials according to claim 1, characterized in that, A motor bracket (9) is fixedly installed on one side of the frame (1), and motor support plates (8) are fixedly installed on both sides of the motor bracket (9).

6. A novel pneumatic valve for powder materials according to claim 5, characterized in that, The motor bracket (9) is provided with a pull rod (3) inside. A clamping part (4) is fixedly installed at one end of the pull rod (3), and a sealing part (2) is fixedly installed on one side of the clamping part (4).

7. A novel pneumatic valve for powder materials according to claim 1, characterized in that, The semicircular plate (14) has a screw hole for the bolt (15) to pass through, and the screw hole is threadedly connected to the bolt (15).

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