Anti-material accumulation structure of kettle bottom discharge ball valve

Abstract

The present application relates to the technical field of ball valves, and discloses a material accumulation prevention structure of a kettle bottom discharge ball valve, which comprises a ball valve structure installed at the outlet position of a kettle body discharge pipe and a dredging structure installed at the inlet position of the kettle body discharge pipe, and the ball valve structure comprises a valve body, a valve core and a first air blowing assembly; the present application sets the ball valve structure at the outlet of the discharge pipe and sets the dredging structure at the inlet, realizes the coordinated prevention of material accumulation in the upper and lower regions of the kettle bottom discharge channel, covers all the easily accumulated regions of material settlement, adhesion and retention, relies on the special disturbance cavity formed by the cooperation of the large and small hemispheres, and realizes the dead corner-free airflow sweeping of the valve body interior in cooperation with the first air blowing assembly, thereby improving the problem of the easy residual material of the traditional ball valve cavity and valve core side wall, and simultaneously integrating the pneumatic telescopic dredging structure, which breaks the defects of material bridging and wall-hanging accumulation at the discharge pipe opening from the source in the mechanical telescopic disturbance combined with airflow auxiliary mode.

Description

Technical Field

[0001] This invention relates to the field of ball valve technology, and in particular to a structure for preventing material accumulation in a bottom-discharge ball valve. Background Technology

[0002] In conventional bottom discharge ball valves, the valve core and the inner wall of the valve body have a fixed clearance. There are often structural dead angles inside the valve body and at the connection between the valve core and the flow channel. During the static, low-speed flow and the final stage of discharge, the material is very prone to settling, adhering, bridging and crystallizing in the inner cavity of the valve body, the side wall of the valve core and the inlet of the discharge pipe of the vessel. Long-term accumulation of material will reduce the material flow cross section, causing poor discharge and batch material residue contamination. In severe cases, it can lead to valve core jamming and valve opening and closing failure, affecting the continuous and stable operation of the entire production equipment.

[0003] Currently, to improve the material accumulation problem in bottom ball valves, the industry typically employs conventional techniques such as mirror-polished flow channels, setting up a single air purging port, adding a simple scraping structure, and using an angled valve body. These methods reduce material residue by decreasing material adhesion and using simple airflow purging. However, these methods can only effectively clean the material in the main flow channel and cannot eliminate hidden material accumulation cavities between the valve core sidewall and the valve body. This results in a large number of purging blind spots and prevents comprehensive material cleaning. Furthermore, most existing anti-accumulation technologies only optimize the inside of the valve body, neglecting the material bridging problem at the inlet of the vessel's discharge pipe. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a structure for preventing material accumulation in a bottom discharge ball valve.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A structure for preventing material accumulation in a bottom discharge ball valve includes: a ball valve structure installed at the outlet of the discharge pipe of the vessel body and a dredging structure installed at the inlet of the discharge pipe of the vessel body. The ball valve structure includes a valve body, a valve core, and a first air blowing assembly; The valve core is rotated and assembled inside the valve body. The valve core is composed of a large-diameter first hemisphere and a small-diameter second hemisphere coaxially connected. A discharge through hole is opened at the mating surface of the first and second hemispheres, which passes through the valve core. The inner cavity size of the valve body is matched with the outer diameter of the first hemisphere, so that the gap between the outer wall of the second hemisphere and the inner wall of the valve body forms a disturbance cavity. The first air blowing assembly is located on the side wall of the valve body, and its air blowing port is connected to the disturbance chamber for blowing air into the disturbance chamber. The unblocking structure includes a telescopic feed bar and a second air blowing assembly; The telescopic feeding rod is coaxially arranged with the discharge pipe and can extend and retract toward the opening of the discharge pipe, disturbing the material inside the discharge pipe through intermittent telescopic movement; The second air blowing component is arranged to match the telescopic feeding rod, serving both to support the telescopic feeding rod and to provide a stable pneumatic power source for the telescopic feeding rod's reciprocating motion.

[0006] As a further embodiment of the present invention, the ball valve structure also includes a valve stem and a drive assembly. One end of the valve stem is fixedly connected to the valve core, and the connection point is located on the dividing line between the first hemisphere and the second hemisphere. The other end of the valve stem extends to the outside of the valve body to connect to the drive assembly. The drive assembly drives the valve stem and the entire valve core to rotate, thereby realizing the opening and closing switching of the ball valve structure.

[0007] As a further embodiment of the present invention, the first hemisphere and the second hemisphere are integrally formed, with no seam at the transition position.

[0008] As a further embodiment of the present invention, the disturbance cavity is evenly distributed along the circumference of the second hemisphere, and the disturbance cavity is interconnected with the internal space of the discharge through hole, so that the airflow blown in by the first air blowing component can fill the entire interior of the disturbance cavity.

[0009] As a further embodiment of the present invention, a filter structure is provided at the air outlet of the first air blowing assembly, and the air outlet of the first air blowing assembly is inclined downward toward the inside of the disturbance cavity.

[0010] As a further embodiment of the present invention, the unblocking structure also includes a support rod, which is symmetrically arranged on both sides of the telescopic feeding rod with the second air blowing assembly. The support rod and the second air blowing assembly cooperate with each other to position and support the telescopic feeding rod.

[0011] As a further embodiment of the present invention, the telescopic feeding rod includes a fixed tube body, a telescopic tube body, and a reset elastic element. The telescopic tube body is slidably sleeved inside the fixed tube body and can slide and extend along the axial direction of the fixed tube body. The reset elastic element is assembled inside the cavity between the fixed tube body and the telescopic tube body. The airflow output by the second air blowing component pushes the telescopic tube body to extend through the cavity of the fixed tube body. After the air source is depressurized, the telescopic tube body can be automatically retracted by the elastic reset force of the reset elastic element.

[0012] As a further aspect of the present invention, the structure also includes an air supply structure, which includes a first air supply branch and a second air supply branch. The first air supply branch is connected to the first air blowing assembly for air supply, and the second air supply branch is connected to the second air blowing assembly for air supply.

[0013] As a further embodiment of the present invention, the gas supply structure also includes a main gas supply pipeline and a pressure regulating valve group. The first gas supply branch and the second gas supply branch are both connected in parallel to the main gas supply pipeline. The pressure regulating valve group is assembled on the main gas supply pipeline to uniformly regulate the overall gas supply pressure and can finely adjust the gas pressure according to the working requirements of the first gas supply branch and the second gas supply branch respectively.

[0014] As a further embodiment of the present invention, an electric pressure relief component is installed at the output end of the main gas supply pipeline corresponding to the first gas supply branch and the second gas supply branch. When the gas pressure exceeds the set threshold, the electric pressure relief component automatically opens to relieve pressure. The electric pressure relief component corresponding to the second gas supply branch can be opened and closed intermittently according to a set frequency, which, together with the second air blowing component, realizes the intermittent extension and retraction disturbance of the telescopic feeding rod.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention achieves coordinated anti-material accumulation in both upper and lower areas of the bottom discharge channel by setting a ball valve structure at the discharge pipe outlet and a dredging structure at the inlet. It covers all areas prone to material settling, adhesion, and retention. Relying on the exclusive disturbance cavity formed by the cooperation of the large and small hemispheres, combined with the first air blowing component, it achieves airflow purging inside the valve body without dead angles, improving the problem of material residue in the valve cavity and valve core sidewall of traditional ball valves. At the same time, it integrates a pneumatic telescopic dredging structure, which eliminates the defects of material bridging and wall accumulation at the discharge pipe inlet from the source by combining mechanical telescopic disturbance with airflow assistance. The dual structure works in synergy to comprehensively improve the self-cleaning ability of the bottom discharge channel and ensure smooth material discharge. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the anti-material accumulation structure of the bottom discharge ball valve proposed in this invention; Figure 2 This is a schematic diagram of the unblocking structure position of the anti-material accumulation structure of the bottom discharge ball valve proposed in this invention; Figure 3 This is a schematic diagram of the anti-material accumulation structure of a bottom discharge ball valve proposed in this invention; Figure 4 This is a schematic diagram of the valve core of a bottom discharge ball valve proposed in this invention to prevent material accumulation. Figure 5 This is a schematic diagram of the unblocking structure of a bottom discharge ball valve proposed in this invention to prevent material accumulation.

[0017] In the diagram: 100, vessel body; 110, discharge pipe; 200, ball valve structure; 210, valve body; 220, valve core; 221, first hemisphere; 222, second hemisphere; 223, discharge through hole; 224, disturbance chamber; 230, first air blowing assembly; 240, valve stem; 250, drive assembly; 300, unblocking structure; 310, telescopic discharge rod; 311, fixed pipe body; 312, telescopic pipe body; 313, reset elastic element; 320, second air blowing assembly; 330, support rod; 400, air supply structure; 410, first air supply branch; 420, second air supply branch; 430, main air supply pipeline; 440, electric pressure relief assembly. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0019] like Figure 1 and Figure 2 As shown, a material accumulation prevention structure for a bottom discharge ball valve includes: a ball valve structure 200 installed at the outlet of the discharge pipe 110 of the vessel body 100 and a dredging structure 300 installed at the inlet of the discharge pipe 110 of the vessel body 100. The ball valve structure 200 serves as the on / off control component for material discharge from the vessel body 100, and undertakes the functions of material cut-off and conduction. It includes a valve body 210, a valve core 220, and a first air blowing assembly 230. The valve core 220 is rotatably assembled inside the valve body 210. The valve core 220 is composed of a large-diameter first hemisphere 221 and a small-diameter second hemisphere 222 coaxially connected. A discharge through hole 223 is provided at the mating surface of the first hemisphere 221 and the second hemisphere 222, which is a dedicated flow channel for material discharge. The channel size matches the diameter of the discharge pipe 110. The inner cavity size of the valve body 210 is set to match the outer diameter of the first hemisphere 221, so that the outer wall of the first hemisphere 221 fits and cooperates with the inner cavity wall of the valve body 210, realizing the effective sealing and blocking of the material channel. At the same time, the gap between the outer wall of the second hemisphere 222 and the inner wall of the valve body 210 forms a disturbance cavity 224. The first air blowing assembly 230 is disposed on the side wall of the valve body 210, and its air blowing port is connected to the internal cavity of the disturbance cavity 224, which can directionally and continuously or intermittently input airflow into the disturbance cavity 224. The unblocking structure 300 includes a telescopic feeding rod 310 and a second air blowing assembly 320; The telescopic feeding rod 310 and the second air blowing component 320 are fitted together at the inlet end of the discharge pipe 110 of the vessel body 100, which is located in the core area of ​​material settling and accumulation in the vessel body 100. The telescopic feeding rod 310 is a mechanical disturbance component that can perform axial telescopic reciprocating motion. During the telescopic motion, the telescopic tube 312 can directly penetrate the material accumulation layer and bridging gap at the inlet of the discharge pipe 110. Through intermittent mechanical disturbance, the material accumulation and bridging state at the inlet of the discharge pipe 110 is broken, the compacted material layer is loosened, and the material can fall into the discharge pipe 110 evenly and continuously, thus eliminating the problem of material blockage and accumulation at the inlet of the discharge pipe 110 from the source. The second air blowing assembly 320 is arranged in a matching manner with the telescopic feeding rod 310. It is used to support the telescopic feeding rod 310 and to provide a stable pneumatic power source for the telescopic feeding rod 310's reciprocating motion.

[0020] This structure forms a comprehensive anti-accumulation system by setting corresponding anti-accumulation structures at the inlet and outlet positions of the discharge pipe 110 of the vessel body 100. The valve body 210 adopts a combined large and small hemispherical valve core 220 structure. The gap between the valve body 210 and the small diameter hemisphere forms a dedicated disturbance cavity 224. With the continuous airflow input by the first air blowing component 230, it can continuously disturb and blow away the cavity space inside the valve body 210 where materials are easily trapped. This changes the structural defects of traditional bottom ball valves, which have fixed dead corners and materials are easy to accumulate. At the same time, a dynamically movable telescopic discharge rod 31 is set at the inlet of the discharge pipe 110. 0. Relying on the pneumatic power provided by the second air blowing component 320, intermittent extension and retraction are achieved to mechanically disturb the material on the inner wall of the discharge pipe 110 and at the pipe opening, breaking the state of material hanging on the wall, bridging, and settling accumulation. The second air blowing component 320 integrates the dual functions of support and fixation and pneumatic drive, simplifying the overall equipment assembly structure and reducing the use of external auxiliary accessories. By combining the airflow cleaning of the valve body 210 with the mechanical disturbance at the pipe opening, the accumulation problem is solved at both the material discharge terminal and the material feed source, effectively ensuring the smoothness of the bottom discharge channel and adapting to the long-term stable discharge operation of various materials that are easy to crystallize, easy to adhere, and easy to bridge.

[0021] like Figure 3 and Figure 4 As shown, the ball valve structure 200 also includes a valve stem 240 and a drive assembly 250. The valve stem 240 is a power transmission component, and the drive assembly 250 is a power output component for rotating the valve core 220. One end of the valve stem 240 is fixedly connected to the valve core 220, and its connection point is precisely located on the dividing line between the first hemisphere 221 and the second hemisphere 222. This connection position can ensure that the valve stem 240 is subjected to balanced force, and there will be no eccentric force or swing deviation during the rotation of the valve core 220, effectively reducing the frictional loss between the valve core 220 and the valve body 210. The other end of the valve stem 240 extends to the outside of the valve body 210 and is connected to the drive assembly 250 for transmission. Through the rotational power output by the drive assembly 250, the valve stem 240 and the entire valve core 220 are driven to rotate synchronously, accurately realizing the switching between the opening and closing states of the ball valve structure 200, ensuring the accuracy and stability of material flow control.

[0022] like Figure 3 and Figure 4 As shown, the first hemisphere 221 and the second hemisphere 222 are integrally molded and machined. The valve core 220 is a seamless integral structure. There are no splicing seams or assembly gaps at the transition between the two. This structural design can completely avoid the problem of material jamming and accumulation at the splicing seams, and prevent the valve core 220 from getting stuck, sealing failure, and poor rotation caused by tiny materials embedded in the gaps. At the same time, it can improve the overall structural strength and coaxiality of the valve core 220, ensure the stability of the valve core 220 in long-term rotation, and reduce the equipment failure rate and maintenance costs.

[0023] like Figure 3 As shown, the disturbance cavity 224 is evenly distributed in a ring around the second hemisphere 222, and the internal cavity of the disturbance cavity 224 is interconnected with the internal space of the discharge through hole 223 to form a complete airflow channel. The airflow blown in by the first blowing component 230 can diffuse evenly around the disturbance cavity 224, covering all areas inside the disturbance cavity 224 without any blind spots. It can thoroughly blow and clean all the material stuck on the outside of the second hemisphere 222 and the inner wall of the valve body 210, ensuring that there is no material residue inside the disturbance cavity 224 and improving the self-cleaning effect.

[0024] A filter structure is fixedly installed at the air outlet of the first air blowing assembly 230. The filter structure can filter the airflow entering the disturbance chamber 224, preventing dust, impurities, and material particles from flowing back into the air passage of the first air blowing assembly 230, avoiding air passage blockage and poor ventilation, and ensuring long-term stable ventilation of the first air blowing assembly 230. At the same time, the air outlet of the first air blowing assembly 230 is tilted downwards towards the inside of the disturbance chamber 224. This tilt angle allows the blown airflow to flow along the inner wall of the disturbance chamber 224, enhancing the flushing effect of the airflow on the material attached to the inner wall of the disturbance chamber 224, and guiding the scourted material to flow in the direction of the discharge hole 223, facilitating the smooth discharge of the material.

[0025] like Figure 2 and Figure 5 As shown, the unblocking structure 300 also includes a support rod 330. The support rod 330 and the second air blowing component 320 are symmetrically arranged on both sides of the telescopic discharge rod 310 to form a double-sided symmetrical support structure. The support rod 330 adopts a rigid positioning structure and works together with the second air blowing component 320 to limit and fix the telescopic discharge rod 310, further improving the assembly stability of the telescopic discharge rod 310, eliminating radial swaying and offset during the telescopic movement, ensuring the accuracy of mechanical disturbance action, and continuously and stably achieving material unblocking at the inlet of the discharge pipe 110.

[0026] like Figure 2 and Figure 5As shown, the telescopic feeding rod 310 includes a fixed tube 311, a telescopic tube 312, and a reset elastic element 313. The telescopic tube 312 is slidably sleeved inside the fixed tube 311 and can slide and extend along the axial direction of the fixed tube 311. The reset elastic element 313 is assembled inside the cavity between the fixed tube 311 and the telescopic tube 312. The high-pressure airflow output by the second air blowing assembly 320 can enter the cavity of the fixed tube 311 and use the air pressure thrust to push the telescopic tube 312 to extend outward, realizing the material disturbance action. When the air source is depressurized, the air pressure inside the cavity decreases, and the telescopic tube 312 can be automatically retracted by the elastic reset force of the reset elastic element 313 itself, without the need to provide additional retraction power. Through the cooperation of air pressure filling and unloading and elastic reset, the automatic reciprocating extension and retraction of the telescopic feeding rod 310 is realized.

[0027] like Figure 1 and Figure 3 As shown, the anti-material accumulation structure also includes an air supply structure 400, which is the core of the airflow supply for the entire equipment. It includes two independent air paths: a first air supply branch 410 and a second air supply branch 420. The first air supply branch 410 is connected to the first air blowing assembly 230 to provide dedicated airflow for the self-cleaning and purging operation inside the ball valve structure 200. The second air supply branch 420 is connected to the second air blowing assembly 320 to provide dedicated pneumatic power for the extension and retraction of the telescopic discharge rod 310. The two air supply branches work independently and do not interfere with each other. They can independently supply air to meet the working needs of the two sets of structures, avoiding problems such as insufficient purging force and abnormal extension and retraction caused by mutual interference of air paths.

[0028] like Figure 1 and Figure 3 As shown, the air supply structure 400 also includes a main air supply pipeline 430 and a pressure regulating valve group. The first air supply branch 410 and the second air supply branch 420 are both connected in parallel to the main air supply pipeline 430. The pressure regulating valve group is installed on the main air supply pipeline 430 and can uniformly regulate the overall air pressure output by the main air supply pipeline 430 to ensure the stability of the overall air supply pressure. At the same time, it can make fine and precise adjustments to the air pressure of the first air supply branch 410 and the second air supply branch 420 according to the different working conditions of the first air blowing assembly 230 and the second air blowing assembly 320, adapting to the different pressure requirements of self-cleaning purging and pneumatic extension, and improving the adaptability and rationality of the overall operation of the equipment.

[0029] like Figure 1 and Figure 3As shown, the main gas supply pipeline 430 is equipped with an electric pressure relief assembly 440 at the output ends of the first gas supply branch 410 and the second gas supply branch 420. The electric pressure relief assembly 440 is precisely matched with the gas lines of the first gas supply branch 410 and the second gas supply branch 420, and can monitor the internal pressure of the gas lines of the first gas supply branch 410 and the second gas supply branch 420 in real time. When the internal pressure of the gas line exceeds the preset working threshold, the electric pressure relief assembly 440 can automatically open to perform pressure relief operation, adjusting the gas line pressure to the standard working range and avoiding... To prevent damage to components, air leaks, and equipment malfunctions caused by excessive air pressure, and to ensure the safe operation of the air system, the electric pressure relief component 440 corresponding to the second air supply branch 420 can perform intermittent opening and closing actions according to a fixed frequency preset by the system. Through regular pressure relief and pressure holding switching, in conjunction with the air pressure output pattern of the second air blowing component 320, the intermittent extension and retraction disturbance action of the telescopic feed rod 310 is realized. The continuous unblocking operation can be completed automatically without manual intervention, improving the automation level of the equipment and the material unblocking effect.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A structure for preventing material accumulation in a bottom discharge ball valve, characterized in that, include: A ball valve structure (200) installed at the outlet of the discharge pipe (110) of the vessel body (100) and a dredging structure (300) installed at the inlet of the discharge pipe (110) of the vessel body (100). The ball valve structure (200) includes a valve body (210), a valve core (220), and a first air blowing assembly (230). The valve core (220) is rotatably assembled inside the valve body (210). The valve core (220) is composed of a large-diameter first hemisphere (221) and a small-diameter second hemisphere (222) coaxially connected. A discharge through hole (223) is provided at the mating surface of the first hemisphere (221) and the second hemisphere (222). The inner cavity size of the valve body (210) is matched with the outer diameter of the first hemisphere (221), so that the gap between the outer wall of the second hemisphere (222) and the inner wall of the valve body (210) forms a disturbance cavity (224). The first air blowing assembly (230) is disposed on the side wall of the valve body (210), and its air blowing port is connected to the disturbance cavity (224) for blowing air into the disturbance cavity (224); The unblocking structure (300) includes a telescopic feed bar (310) and a second air blowing assembly (320); The telescopic feeding rod (310) is coaxially arranged with the discharge pipe (110) and can extend and retract toward the opening of the discharge pipe (110) to disturb the material inside the discharge pipe (110) through intermittent telescopic movement; The second air blowing assembly (320) is matched with the telescopic feeding rod (310), which is used to support the telescopic feeding rod (310) and provide a stable pneumatic power source for the telescopic feeding rod (310) to reciprocate. The telescopic feeding rod (310) includes a fixed tube (311), a telescopic tube (312), and a reset elastic element (313). The telescopic tube (312) is slidably sleeved inside the fixed tube (311) and can slide and extend along the axial direction of the fixed tube (311). The reset elastic element (313) is assembled inside the cavity between the fixed tube (311) and the telescopic tube (312). The airflow output by the second air blowing assembly (320) pushes the telescopic tube (312) to extend through the cavity of the fixed tube (311). After the air source is depressurized, the elastic reset force of the reset elastic element (313) can pull the telescopic tube (312) to achieve automatic retraction. The unblocking structure (300) also includes a support rod (330), which is symmetrically arranged with the second air blowing assembly (320) on both sides of the telescopic feeding rod (310). The support rod (330) and the second air blowing assembly (320) cooperate with each other to position and support the telescopic feeding rod (310).

2. The anti-material accumulation structure of the bottom discharge ball valve according to claim 1, characterized in that, The ball valve structure (200) also includes a valve stem (240) and a drive assembly (250). One end of the valve stem (240) is fixedly connected to the valve core (220), and its connection point is located on the dividing line between the first hemisphere (221) and the second hemisphere (222). The other end of the valve stem (240) extends to the outside of the valve body (210) to connect to the drive assembly (250). The drive assembly (250) drives the valve stem (240) and the overall valve core (220) to rotate, thereby realizing the opening and closing switching of the ball valve structure (200).

3. The anti-material accumulation structure of the bottom discharge ball valve according to claim 1, characterized in that, The first hemisphere (221) and the second hemisphere (222) are designed as a single piece with no seams at the transition point.

4. The anti-material accumulation structure of the bottom discharge ball valve according to claim 1, characterized in that, The disturbance cavity (224) is evenly distributed around the second hemisphere (222), and the disturbance cavity (224) is connected to the internal space of the discharge through hole (223). The airflow blown in by the first air blowing component (230) can fill the entire interior of the disturbance cavity (224).

5. The anti-material accumulation structure of the bottom discharge ball valve according to claim 1, characterized in that, The first air blowing assembly (230) is provided with a filter structure at the air blowing port, and the air blowing port of the first air blowing assembly (230) is inclined downward toward the inside of the disturbance cavity (224).

6. The anti-material accumulation structure of the bottom discharge ball valve according to claim 1, characterized in that, The structure also includes an air supply structure (400), which includes a first air supply branch (410) and a second air supply branch (420). The first air supply branch (410) is connected to the first air blowing assembly (230) for air supply, and the second air supply branch (420) is connected to the second air blowing assembly (320) for air supply.

7. The anti-material accumulation structure of the bottom discharge ball valve according to claim 6, characterized in that, The gas supply structure (400) also includes a main gas supply pipeline (430) and a pressure regulating valve group. The first gas supply branch (410) and the second gas supply branch (420) are both connected in parallel to the main gas supply pipeline (430). The pressure regulating valve group is mounted on the main gas supply pipeline (430) to uniformly regulate the overall gas supply pressure and can finely adjust the gas pressure to match the working requirements of the first gas supply branch (410) and the second gas supply branch (420).

8. The anti-material accumulation structure of the bottom discharge ball valve according to claim 7, characterized in that, The main gas supply pipeline (430) is equipped with an electric pressure relief component (440) at the output end of the first gas supply branch (410) and the second gas supply branch (420). When the gas pressure exceeds the set threshold, the electric pressure relief component (440) automatically opens to relieve pressure. The electric pressure relief component (440) corresponding to the second gas supply branch (420) can be opened and closed intermittently according to the set frequency, and cooperate with the second air blowing component (320) to realize the intermittent extension and retraction disturbance of the telescopic feed rod (310).

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