Special knife-shaped gate valve for high-temperature powder

Abstract

The utility model discloses a knife-shaped gate valve special for high-temperature powder, which belongs to the technical field of high-temperature powder conveying valves, comprises a valve body, and a feeding pipe and a discharging pipe are symmetrically mounted on the outer side of the valve body, and is characterized in that flanges are fixedly mounted at the ends, relatively far away from each other, of the feeding pipe and the discharging pipe; a hollow column is rotationally installed between the two sides of the inner wall of the valve body, a hexagonal prism is fixedly installed between the two sides of the inner wall of the hollow column, springs are symmetrically and fixedly installed on each side of the outer side wall of the hexagonal prism, a limiting plate is fixedly installed at one ends of the two springs on each side, and a knife-shaped rotating blade is fixedly installed at one end of the limiting plate. One end of the rotating blade penetrates through the hollow column in a sliding mode and is connected with the inner wall of the valve body in a sliding mode, a driving assembly is installed at one end of the hollow column, and the device has the remarkable advantages of being high in conveying efficiency, good in sealing performance, capable of preventing material accumulation, high in high-temperature resistance, simple in structure, easy to maintain and the like, and is particularly suitable for the field of high-temperature powder conveying.

Description

Technical Field

[0001] The utility model relates to the technical field of powder delivery valves, in particular to a knife-shaped gate valve special for high-temperature powder. Background Art

[0002] In high-temperature industrial environments, the transfer of powders is a critical and complex process. Traditional gate valves often face several technical challenges when used to transfer high-temperature powders. First, due to the high temperature and fluidity of the powder, material residue and accumulation are prone to form at the joint between the gate valve's rotating components and the valve body. This not only reduces transfer efficiency but can also cause equipment blockage and failure. Second, high-temperature environments place higher demands on the gate valve's materials and structure, requiring both sufficient high-temperature resistance and stability and reliability over long-term operation. Furthermore, traditional gate valves often fail to fully consider the flow characteristics of powders in their design and operation, leading to problems such as powder accumulation and wall adhesion during transfer, further impacting transfer efficiency and equipment life. Utility Model Content

[0003] In order to make up for the above shortcomings, the utility model provides a knife-shaped gate valve specially designed for high-temperature powder materials, which aims to improve the problem of powder materials easily piling up and hanging on the wall during the transmission process.

[0004] The utility model is implemented as follows: a knife-shaped gate valve specially designed for high-temperature powder materials, comprising a valve body, a feed pipe and a discharge pipe symmetrically mounted on the outer side of the valve body, the feed pipe and the discharge pipe being relatively far away from a fixed mounting flange at one end, a hollow column being rotatably mounted between the two sides of the inner wall of the valve body, a hexagonal column being fixedly mounted between the two sides of the inner wall of the hollow column, a spring being symmetrically fixedly mounted on each side of the outer wall of the hexagonal column, a limit plate being fixedly mounted on one end of the two springs on each side, a knife-shaped rotating blade being fixedly mounted on one end of the limit plate, one end of the rotating blade slidingly passing through the hollow column and being slidably connected to the inner wall of the valve body, and a drive assembly being mounted on one end of the hollow column.

[0005] In the preferred technical solution of the present invention, guide rods are symmetrically fixed on the outer sides of the hexagonal prisms, one end of the guide rods slides through the limit plate and the rotating blade, and a circular groove matching the guide rod is provided in the rotating blade, and the length of the circular groove is greater than the length of the guide rod.

[0006] In a preferred technical solution of the present invention, the spring is sleeved on the outside of the guide rod, and the guide rod corresponds to the spring one by one.

[0007] In the preferred technical solution of the present invention, a plurality of strip holes cooperating with the rotating blades are provided on the outside of the hollow column, the rotating blades are sealed and slidably connected to the inner walls of the strip holes, and a sealing strip is fixedly installed on one end of the rotating blade that slides in contact with the inner wall of the valve body.

[0008] In the preferred technical solution of the present invention, multiple vibration bars are fixedly installed on the inner wall of the valve body, one end of the vibration bar is set as an arc, the rotating blade is slidingly connected to the outer side of the vibration bar, and multiple vibration bars are equidistantly installed in a ring on the inner wall of the valve body.

[0009] In the preferred technical solution of the present utility model, the driving assembly includes a cooling box, a rotating shaft and a motor, the cooling box is fixedly installed on one side of the valve body, the motor is fixedly installed on one side of the cooling box, the output end of the motor is fixedly installed on the rotating shaft, one end of the rotating shaft passes through one side of the valve body and is fixedly connected to one end of the hollow column, one end of the rotating shaft is rotatably connected to one side of the inner wall of the cooling box, and the output end of the motor passes through one side of the cooling box and is fixedly connected to one end of the rotating shaft.

[0010] In the preferred technical solution of the present invention, fans are symmetrically fixed on both sides of the cooling box, and multiple heat dissipation holes are provided on the other two sides of the cooling box. The fans and the heat dissipation holes are annularly staggered on the outside of the cooling box.

[0011] In the preferred technical solution of the present invention, the hexagonal prism and the rotating shaft are both hollow, one end of the rotating shaft is fixed through one side of the hollow column and connected to the hexagonal prism, a heat dissipation circular hole is provided on the outside of the rotating shaft, and the heat dissipation circular hole is provided in the cooling box.

[0012] The beneficial effects of the utility model are:

[0013] Improve transmission efficiency: The utility model uses a knife-shaped rotating blade design to enable powder to pass through the valve more smoothly during the transmission process, effectively avoiding the problems of material accumulation and blockage in traditional gate valves, thereby improving transmission efficiency.

[0014] Enhanced sealing performance: The rotating vane and the inner wall of the valve body are connected by a sealed sliding connection, and a sealing strip is fixedly installed at the sliding end to ensure the sealing performance of the valve in the closed state and effectively prevent the leakage of powder.

[0015] Prevent material accumulation: By setting up a vibration bar and a spring-driven reciprocating shaking mechanism of the rotating blade, the rotating blade can vibrate continuously during the rotation process, shaking off the powder attached to it, effectively preventing material accumulation.

[0016] Improved high-temperature resistance: The valve's drive assembly utilizes a cooling box, shaft, and motor, with heat dissipated by a fan and heat-dissipating strips, ensuring stable operation in high-temperature environments. Furthermore, key components such as the hexagonal prism and shaft feature a hollow design and circular heat-dissipating holes, further enhancing the valve's high-temperature resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a schematic structural diagram of a knife-shaped gate valve for high-temperature powder materials provided by the present utility model;

[0019] Figure 2 A side view of a valve body is provided for an embodiment of the present utility model;

[0020] Figure 3 A schematic diagram of the internal structure of a hollow column is provided for the embodiment of the present utility model;

[0021] Figure 4 A cross-sectional view of a hollow column is provided for an embodiment of the present utility model;

[0022] Figure 5 A structural diagram of a drive assembly is provided for an embodiment of the present utility model.

[0023] In the figure: 110 - valve body; 111 - flange; 120 - hollow column; 121 - hexagonal prism; 122 - spring; 123 - limit plate; 124 - rotating blade; 125 - guide rod; 126 - vibration bar; 130 - cooling box; 131 - rotating shaft; 132 - motor; 133 - fan. DETAILED DESCRIPTION

[0024] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments 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.

[0025] See also Figure 1-Figure 4The utility model provides a technical solution: a knife-shaped gate valve for high-temperature powder materials, including a valve body 110, a feed pipe and a discharge pipe are symmetrically installed on the outside of the valve body 110, characterized in that the feed pipe and the discharge pipe are relatively far away from one end of the fixed mounting flange 111, a hollow column 120 is rotatably installed between the two sides of the inner wall of the valve body 110, a hexagonal column 121 is fixedly installed between the two sides of the inner wall of the hollow column 120, and a spring 122 is symmetrically fixed on each side of the outer wall of the hexagonal column 121, and two springs 122 on each side are fixedly installed. 22, a limit plate 123 is fixedly installed at one end, a knife-shaped rotating leaf 124 is fixedly installed at one end of the limit plate 123, one end of the rotating leaf 124 slides through the hollow column 120 and is slidably connected to the inner wall of the valve body 110, a driving assembly is installed at one end of the hollow column 120, and a plurality of strip holes that cooperate with the rotating leaf 124 are provided on the outside of the hollow column 120, the rotating leaf 124 is sealed and slidably connected to the inner wall of the strip hole, and a sealing strip is fixedly installed on one end of the rotating leaf 124 that slides in contact with the inner wall of the valve body 110.

[0026] In some specific embodiments, a guide rod 125 is symmetrically fixed on the outer side of the hexagonal prism 121, and one end of the guide rod 125 slides through the limit plate 123 and the rotating blade 124. A circular groove matching the guide rod 125 is provided in the rotating blade 124, and the length of the circular groove is greater than the length of the guide rod 125. This design not only enhances the stability of the rotating blade 124, but also ensures the accuracy and guidance of the rotating blade 124 during the movement.

[0027] In some specific embodiments, the spring 122 is sleeved on the outside of the guide rod 125, and the guide rod 125 corresponds to the spring 122 one by one. The spring 122 is a strong spring 122, which ensures that each spring 122 can play a role evenly and provide a stable elastic force and reset ability for the rotating leaf 124. This design helps to improve the sealing and durability of the valve.

[0028] In some specific embodiments, a plurality of vibration bars 126 are fixedly installed on the inner wall of the valve body 110, one end of the vibration bar 126 is set as an arc, the rotating blade 124 is slidingly connected to the outer side of the vibration bar 126, and a plurality of vibration bars 126 are equidistantly installed in a ring on the inner wall of the valve body 110. Such a design can produce a slight vibration effect when the rotating blade 124 contacts the vibration bar 126. This vibration helps to shake off the powder remaining on the rotating blade 124, prevent material accumulation and blockage, and improve the cleanliness and operating efficiency of the valve.

[0029] See also Figure 4 and Figure 5The driving assembly includes a cooling box 130, a rotating shaft 131 and a motor 132. The cooling box 130 is fixedly installed on one side of the valve body 110, and the motor 132 is fixedly installed on one side of the cooling box 130. The output end of the motor 132 is fixedly installed with the rotating shaft 131. One end of the rotating shaft 131 passes through one side of the valve body 110 and is fixedly connected to one end of the hollow column 120. One end of the rotating shaft 131 is rotatably connected to one side of the inner wall of the cooling box 130. The output end of the motor 132 passes through one side of the cooling box 130 and is fixedly connected to one end of the rotating shaft 131. Fans 133 are symmetrically fixedly installed on both sides of the cooling box 130. A plurality of heat dissipation strip holes are provided on the other two sides of the cooling box 130. The fans 133 and the heat dissipation strip holes are staggered in a ring on the outside of the cooling box 130.

[0030] In some specific implementation schemes, the hexagonal prism 121 and the rotating shaft 131 are both hollow, one end of the rotating shaft 131 is fixed through one side of the hollow column 120 and is connected to the hexagonal prism 121, and a heat dissipation circular hole is provided on the outside of the rotating shaft 131. The heat dissipation circular hole is provided in the cooling box 130, which provides more possibilities for heat dissipation of the valve body 110. The heat dissipation circular hole provided on the outside of the rotating shaft 131 can further increase the heat dissipation area, improve the heat dissipation efficiency, and also improve its overall performance and stability.

[0031] Working principle: When in use, the valve body 110 is installed through the flange 111, and the powder enters the valve body 110 from the feed pipe. At this time, the motor 132 is started to drive the rotating shaft 131 to rotate, and the rotation of the rotating shaft 131 drives the hollow column 120 to rotate. The rotation of the hollow column 120 drives the rotating blade 124 to rotate synchronously for conveying. When the rotating blade 124 contacts the vibration bar 126, it moves and squeezes the spring 122. When the rotating blade 124 separates from the vibration bar 126, the elastic force of the spring 122 drives the rotating blade 124 to move back, so that the rotating blade 124 swings back and forth, and the powder hopper on the rotating blade 124 is discharged. At the same time, the fan 133 is started to blow air to the rotating shaft 131 to heat it. At the same time, the hot air in the hexagonal prism 121 is discharged through the rotating shaft 131 and the heat dissipation circular hole.

[0032] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A knife-shaped gate valve for high-temperature powder materials, comprising a valve body, with a feed pipe and a discharge pipe symmetrically mounted on the outer side of the valve body, characterized in that: The feed pipe and the discharge pipe are relatively far away from one end of the fixed installation flange, the hollow column is rotatably installed between the two sides of the inner wall of the valve body, the hexagonal column is fixedly installed between the two sides of the inner wall of the hollow column, and springs are symmetrically fixed on each side of the outer wall of the hexagonal column, and one end of the two springs on each side is jointly fixed with a limit plate, and one end of the limit plate is fixed with a knife-shaped rotating blade, and one end of the rotating blade slides through the hollow column and is slidably connected to the inner wall of the valve body, and a drive assembly is installed at one end of the hollow column.

2. A knife-shaped gate valve for high-temperature powder materials according to claim 1, characterized in that: Guide rods are symmetrically fixed on the outer sides of the hexagonal prisms. One end of the guide rod slides through the limit plate and the rotating leaf. A circular groove matching the guide rod is provided in the rotating leaf.

3. A knife-shaped gate valve for high-temperature powder materials according to claim 2, characterized in that: The spring is sleeved on the outside of the guide rod, and the guide rod corresponds to the spring in a one-to-one manner.

4. The knife-shaped gate valve for high-temperature powder materials according to claim 1, characterized in that: A plurality of strip-shaped holes cooperating with the rotating blades are provided on the outer side of the hollow column, and the rotating blades are sealingly and slidingly connected to the inner walls of the strip-shaped holes.

5. The knife-shaped gate valve for high-temperature powder materials according to claim 1, characterized in that: A plurality of vibration bars are fixedly mounted on the inner wall of the valve body, one end of the vibration bar is arranged in an arc shape, and the rotating blade is slidably connected to the outer side of the vibration bar.

6. The knife-shaped gate valve for high-temperature powder materials according to claim 1, characterized in that: The driving assembly includes a cooling box, a rotating shaft and a motor. The cooling box is fixedly installed on one side of the valve body, the motor is fixedly installed on one side of the cooling box, the rotating shaft is fixedly installed on the output end of the motor, and one end of the rotating shaft passes through one side of the valve body and is fixedly connected to one end of the hollow column.

7. The knife-shaped gate valve for high-temperature powder materials according to claim 6, characterized in that: Fans are symmetrically fixedly installed on both sides of the cooling box, and a plurality of heat dissipation strip holes are provided on the other two sides of the cooling box.

8. The knife-shaped gate valve for high-temperature powder materials according to claim 6, characterized in that: The hexagonal prism and the rotating shaft are both hollow. One end of the rotating shaft is fixedly passed through one side of the hollow prism and is connected to the hexagonal prism. A heat dissipation circular hole is provided on the outer side of the rotating shaft.

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