Automatic control valve capable of reducing friction of fixed particles and used for coal chemical industry

Abstract

The invention discloses a coal chemical industry self-control valve capable of reducing friction of fixed particles, the bottom of a first valve cover is fixedly connected with a valve body, the two sides of the valve body are both sleeved and fixedly connected with assembling rings, the inner wall of the valve body is fixedly connected with the outer surfaces of particle discharging devices, the number of the particle discharging devices is two, and the two particle discharging devices are evenly distributed on the inner wall of the valve body; the coal chemical industry automatic control valve capable of reducing the friction of the fixed particles comprises an inclined scraping plate, the top of the inclined scraping plate is provided with an inclined face round hole, the top of the inclined scraping plate is fixedly connected with an inclined blocking piece, and the bottom of the inclined scraping plate is fixedly connected with a V-shaped bottom plate. The two side faces of the valve plate are scraped in a sliding mode through cooperation of the inclined scraping plate and movement of the valve plate, the situation that the two side faces of the valve plate are stuck or damaged due to the fact that too many particulate matter is attached to the two side faces of the valve plate and the friction force is too large during movement is prevented, and water flow and particulate matter can conveniently pass through inclined-face round holes formed in the top of the inclined scraping plate. Particulate matters are prevented from flowing to the top of the inclined scraper from two sides of the inclined scraper along with water flow to be deposited.

Description

Technical Field

[0001] The invention relates to the technical field of automatic control valves, and in particular to an automatic control valve for coal chemical industry capable of reducing friction of fixed particles. Background Art

[0002] The self-control valve is composed of a valve body, an upper valve cover, and valve internal components. Its principle is to control the valve by means other than human power, such as electric, pneumatic, hydraulic or electromagnetic drive. Its characteristics are: easy to use and safe; it can be controlled on site or remotely; it can control a single valve or multiple valves in a centralized manner; it can perform simple switch control or regulation control; it can be programmed with an electronic computer. Due to the need for remote control, there is generally valve signal feedback - light signal or 4-20mA signal feedback for valve control. In the chemical, papermaking, food, medicine, power plants, steel mills, cities, drainage, gas and other departments, due to the need for large-scale and precise flow control, the application of valve automation is becoming increasingly widespread;

[0003] In the coal chemical environment, various solid particles and flying dust are everywhere. A large amount of fixed particles often accumulate inside the automatic control valve when in use. If it is cleaned regularly, it will block the opening and closing ports of the valve and cause the valve stem to be stuck. In addition, long-term friction with solid particles will also cause damage and reduce the service life of the valve. Therefore, we proposed an automatic control valve for coal chemical industry that reduces the friction of fixed particles. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides an automatic control valve for coal chemical industry that reduces the friction of fixed particles, comprising:

[0005] A valve plate, which is used to control the flow rate of water and the opening and closing of the valve, and an electric push rod arranged on the top of the valve plate;

[0006] A first valve cover, which is used to store the valve plate and is adapted to the adjustment of the valve plate without generating a gap, so as to prevent water in the valve body from overflowing into the second valve cover when the valve plate is moved and adjusted, affecting the operation of the electric push rod, and a second valve cover arranged on the top of the first valve cover;

[0007] The plate cleaning device is used to scrape and clean the two sides and the bottom of the movable and adjustable valve plate to prevent the valve plate from being damaged due to excessive particles adhering to the surface after long-term use, which increases friction;

[0008] A stripping device, which cleans the surface of the parts of the plate cleaning device while stripping them as the valve plate moves, to prevent excessive particles from accumulating on the surface and inside of the plate cleaning device due to long-term use;

[0009] A particle removal device, which removes solid particles deposited on the bottom of the valve plate by coordinating with the flow of water when pushing, to prevent excessive particles from being deposited on the bottom of the inner wall of the valve body, which makes it difficult for the valve plate to completely block the valve body;

[0010] The top of the valve plate is fixedly connected to the driving shaft of the electric push rod, the bottom of the valve plate passes through the first valve cover and is slidably connected to the first valve cover, both sides of the valve plate are fixedly connected to one side of the stripping device, the bottom of the electric push rod is fixedly connected to the top of the second valve cover, and both sides of the inner wall of the first valve cover are fixedly connected to one side of the plate cleaning device;

[0011] Wherein, the plate cleaning device comprises:

[0012] The inclined scraper cooperates with the movement of the valve plate to scrape and clean the two sides of the valve plate. The inclined scraper cooperates with the movement of the valve plate to slide and scrape the two sides of the valve plate to prevent the valve plate from being stuck or damaged due to excessive friction when moving due to excessive particles adhering to the two sides of the valve plate;

[0013] One side of the inclined scraper is fixedly connected to the inner wall of the first valve cover;

[0014] The bottom of the first valve cover is fixedly connected to a valve body, both sides of the valve body are sleeved and fixedly connected with assembly rings, the inner wall of the valve body is fixedly connected to the outer surface of the particle discharge device, and the particle discharge device is provided with two and evenly distributed on the inner wall of the valve body;

[0015] The top of the inclined scraper plate is provided with an inclined circular hole, which facilitates the passage of water flow and particles, and prevents particles from flowing from both sides of the inclined scraper plate to the top of the inclined scraper plate with the water flow and being deposited; the top of the inclined scraper plate is fixedly connected with an inclined baffle, which blocks the particles deposited on the inclined scraper plate, and prevents the particles remaining on the inclined scraper plate from sliding down to the side of the valve plate along the inclined surface; the bottom of the inclined scraper plate is fixedly connected with a V-shaped bottom plate, and the bottom of the V-shaped bottom plate is fixedly connected with an inclined scraper, which slides and scrapes the bottom of the valve plate when it contacts the bottom of the valve plate, and prevents a large amount of particles from adhering to the bottom of the valve plate, which makes it difficult for the valve plate to completely block the valve body; a plurality of the inclined circular holes are arranged and evenly distributed on the top of the inclined scraper plate, and a plurality of the inclined scrapers are arranged and evenly distributed on the bottom of the V-shaped bottom plate.

[0016] Furthermore, the stripping device includes a side inclined plate, both sides of which are fixedly connected with side barbs, which are used to move and scrape the surface of the inclined scraper to prevent the cleaned particles from accumulating on the surface of the upward inclined scraper and adhering to the surface of the valve plate again; the top of the side inclined plate is fixedly connected with an inclined arc sheet, which is used to strip and scrape the bottom of the inclined scraper to prevent particles in the water flow from accumulating on the bottom of the inclined scraper to block the inclined circular hole; one side of the inclined arc sheet is fixedly connected with a small scraper block, which moves with the bending of the inclined arc sheet The curved stretcher intermittently punctures the inclined circular hole to prevent excessive accumulation of particles inside the inclined circular hole and blockage. A curved circular hole is opened on one side of the inclined arc piece, and the curved circular hole covering the outer surface of the inclined arc piece with a large area facilitates the passage of particles and prevents a large amount of cleaned particles from adhering to the outer surface of the inclined arc piece and contaminating the bottom of the inclined scraper again. One side of the side inclined plate is fixedly connected to one side of the valve plate. Four inclined arc pieces are arranged and evenly distributed on the side inclined plate, and multiple curved circular holes are arranged and evenly distributed on the inclined arc piece.

[0017] Furthermore, the particle discharge device includes an annular sleeve plate, the inner wall of the annular sleeve plate is fixedly connected to an electric telescopic rod, both sides of the electric telescopic rod are fixedly connected to an internal cleaning mechanism, a semi-arc scraper is fixedly connected to the side of the internal cleaning mechanism away from the electric telescopic rod, and when the semi-arc scraper moves, it pushes and scrapes the lower half of the inner wall of the valve body to prevent a large amount of particles from being deposited on the bottom of the inner wall of the valve body, which makes it difficult for the valve plate to fit and seal with the inner wall of the valve body, and an inner oblique ring piece is fixedly connected to the side of the internal cleaning mechanism away from the semi-arc scraper, and when the inner oblique ring piece moves, it slides and scrapes the outer surface of the corrugated ring piece to prevent the corrugated ring piece from accumulating A large amount of particulate matter affects the contraction of the corrugated ring piece. An arc-shaped hole is provided on the outer surface of the inner oblique ring piece. The arc-shaped hole provided on the inner oblique ring piece facilitates the passage of water flow and particulate matter, and prevents the water flow and particulate matter entering the inner oblique ring piece from stagnating and being difficult to discharge. The outer surface of the electric telescopic rod is fixedly connected with a corrugated ring piece, and the corrugated ring piece surrounds and covers the drive shaft while cooperating with the extension and contraction of the drive shaft, and prevents a large amount of particulate matter in the water flow from being mixed in the connection of the drive shaft and causing jamming. The outer surface of the annular sleeve is fixedly connected to the inner wall of the valve body, and a plurality of arc-shaped holes are provided and evenly distributed on the outer surface of the inner oblique ring piece.

[0018] Furthermore, the internal cleaning mechanism includes a cross side plate, one side of which is fixedly connected to an outer beveled ring sheet, which slides and scrapes the inner wall of the valve body to prevent particles brought by water flow from remaining in various places on the inner wall of the valve body and are difficult to discharge, and the outer surface of the outer beveled ring sheet is provided with small circular holes, which facilitate the passage of water flow and particles and prevent the outer beveled ring sheet from being bent to a large extent and out of contact with the inner wall of the valve body when the water flow is too large, and one side of the outer beveled ring sheet is fixedly connected to a curved barb, which punctures the small circular hole to prevent excessive accumulation of particles in the small circular hole from being blocked, causing the outer beveled ring sheet to bend to a large extent, and the cross side plate is fixedly connected to an outer beveled ring sheet. A side of the cross side plate close to the outer oblique ring piece is fixedly connected with an oblique stopper, which always resists the outer oblique ring piece to prevent the outer oblique ring piece from being difficult to return to its original state when it is bent to a large extent for a long time. The side of the cross side plate away from the outer oblique ring piece is fixedly connected to one side of the semi-arc scraper, the side of the cross side plate close to the outer oblique ring piece is fixedly connected to one side of the inner oblique ring piece, and the side of the cross side plate close to the outer oblique ring piece is fixedly connected to the driving shaft of the electric telescopic rod. A plurality of small circular holes are provided and evenly distributed on the outer surface of the outer oblique ring piece, a plurality of curved barbs are provided and evenly distributed on the outer surface of the outer oblique ring piece, and a plurality of oblique stoppers are provided and evenly distributed on one side of the cross side plate.

[0019] The present invention has the beneficial effects:

[0020] 1. The present invention uses the inclined scraper to cooperate with the movement of the valve plate to slide and scrape the two side surfaces of the valve plate, so as to prevent too many particles from adhering to the two side surfaces of the valve plate and causing jamming or damage due to excessive friction when moving. The inclined scraper peels and scrapes the bottom of the inclined scraper to prevent particles in the water flow from accumulating at the bottom of the inclined scraper to seal the inclined circular holes. When the semi-arc scraper moves, it pushes and scrapes the lower half of the inner wall of the valve body to prevent a large amount of particles from being deposited on the bottom of the valve body wall, which makes it difficult for the valve plate to fit and seal with the inner wall of the valve body. The outer inclined ring scrapes the inner wall of the valve body to slide and scrape, so as to prevent particles brought by the water flow from remaining in various places on the inner wall of the valve body and making it difficult to discharge.

[0021] 2. The present invention provides a plate cleaning device, and the inclined scraper cooperates with the movement of the valve plate to slide and scrape the two side surfaces of the valve plate, so as to prevent too many particles from adhering to the two side surfaces of the valve plate and causing the valve plate to be stuck or damaged due to excessive friction when moving. The inclined circular holes on the top of the inclined scraper are convenient for the passage of water flow and particles, and prevent particles from flowing from the two sides of the inclined scraper to the top of the inclined scraper with the water flow and being deposited. At the same time, the inclined baffle on the top of the inclined scraper blocks the particles deposited on the inclined scraper, and prevents the particles remaining on the inclined scraper from sliding down the inclined surface to the side of the valve plate. When the inclined scraper contacts the bottom of the valve plate, it slides and scrapes the bottom of the valve plate, and prevents a large amount of particles from adhering to the bottom of the valve plate, which makes it difficult for the valve plate to completely seal the valve body.

[0022] 3. The present invention provides a stripping device, and the inclined arc piece is used to strip and scrape the bottom of the inclined scraper plate to prevent particles in the water flow from accumulating at the bottom of the inclined scraper plate to block the inclined circular holes. The small scraper block intermittently punctures the inclined circular holes as the inclined arc piece bends and stretches to prevent excessive accumulation of particles inside the inclined circular holes to cause blockage. At the same time, the arc holes covering the outer surface of the inclined arc piece with a large area facilitate the passage of particles and prevent a large amount of cleaned particles attached to the outer surface of the inclined arc piece from being contaminated again at the bottom of the inclined scraper. The side barbs scrape the surface of the inclined scraper blade to prevent the cleaned particles from accumulating on the surface of the upward inclined scraper blade and attaching to the surface of the valve plate again.

[0023] 4. The present invention provides a particle discharge device, and the corrugated ring piece cooperates with the extension and contraction of the driving shaft while surrounding and covering it, so as to prevent a large amount of particulate matter in the water flow from being mixed in the connection of the driving shaft and causing jamming; when the semi-arc scraper moves, it pushes and scrapes the lower half of the inner wall of the valve body, so as to prevent a large amount of particulate matter from being deposited on the bottom of the inner wall of the valve body, which makes it difficult for the valve plate to fit and seal with the inner wall of the valve body; when the inner oblique ring piece moves, it slides and scrapes the outer surface of the corrugated ring piece, so as to prevent a large amount of particulate matter from accumulating on the corrugated ring piece and affecting its contraction; at the same time, the arc-shaped hole on the inner oblique ring piece facilitates the passage of water flow and particulate matter, so as to prevent the water flow and particulate matter entering the inner oblique ring piece from stagnating and being difficult to discharge.

[0024] 5. The present invention provides an internal cleaning mechanism, and the outer oblique ring piece slides and scrapes the inner wall of the valve body to prevent particles brought by water flow from remaining in various places on the inner wall of the valve body and being difficult to discharge. At the same time, the small circular holes on the outer surface of the outer oblique ring piece facilitate the passage of water flow and particles, and prevent the outer oblique ring piece from being pushed to bend to a large extent and out of contact with the inner wall of the valve body when the water flow is too large. The curved barb strip punctures the small circular hole to prevent excessive accumulation of particles inside the small circular hole, which is blocked and causes the outer oblique ring piece to bend to a large extent. At the same time, the oblique block on one side of the cross side plate always resists the outer oblique ring piece to prevent the outer oblique ring piece from being difficult to restore to its original state after being bent to a large extent for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of the automatic control valve of the present invention;

[0026] Figure 2 This is a schematic diagram of the internal structure of the automatic control valve of the present invention;

[0027] Figure 3 It is a schematic diagram of the structure of the plate cleaning device of the present invention;

[0028] Figure 4 This is a schematic diagram of the bottom structure of the plate cleaning device of the present invention;

[0029] Figure 5 It is a schematic structural diagram of the stripping device of the present invention;

[0030] Figure 6 It is a schematic diagram of the structure of the particle discharge device of the present invention;

[0031] Figure 7 It is a schematic diagram of the internal structure of the particle discharge device of the present invention;

[0032] Figure 8 This is a schematic diagram of the structure of the internal cleaning mechanism of the present invention;

[0033] Fig. 9 It is a schematic diagram of the side structure of the inner cleaning mechanism of the present invention;

[0034] In the figure: 1, valve plate; 2, electric push rod; 3, first valve cover; 4, second valve cover; 5, plate cleaning device; 6, stripping device; 7, particle removal device; 8, valve body; 9, assembly ring; 501, oblique scraper; 502, inclined circular hole; 503, oblique baffle; 504, V-shaped bottom plate; 505, oblique scraper; 601, side oblique plate; 602, side thorn bar; 603, oblique arc piece; 604, small scraper block; 605, arc circular hole; 701, annular sleeve plate; 702, electric telescopic rod; 703, internal cleaning mechanism; 704, semi-arc scraper; 705, inner oblique ring piece; 706, arc hole; 707, corrugated ring piece; 7031, cross side plate; 7032, outer oblique ring piece; 7033, small circular hole; 7034, curved thorn bar; 7035, oblique baffle. DETAILED DESCRIPTION

[0035] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0036] For the first embodiment, please refer to Figure 1-Figure 5 The present invention is an automatic control valve for coal chemical industry for reducing friction of fixed particles, comprising:

[0037] A valve plate 1, which is used to control the flow rate of water and the opening and closing of the valve, and an electric push rod 2 arranged on the top of the valve plate 1;

[0038] A first valve cover 3, which is used to store the valve plate 1 and is adapted to the adjustment of the valve plate 1 so as not to generate a gap, and a second valve cover 4 arranged on the top of the first valve cover 3;

[0039] A plate cleaning device 5, which is used to clean the two sides and the bottom of the movable and adjustable valve plate 1 by scraping;

[0040] The stripping device 6 is used to strip and clean the surface of the parts of the cleaning device 5 as the valve plate 1 moves;

[0041] A particle discharging device 7, which discharges solid particles deposited on the bottom of the valve plate 1 by coordinating with the flow of water when the particle discharging device 7 is pushed;

[0042] The top of the valve plate 1 is fixedly connected to the driving shaft of the electric push rod 2, the bottom of the valve plate 1 passes through the first valve cover 3 and is slidably connected to the first valve cover 3, both sides of the valve plate 1 are fixedly connected to one side of the stripping device 6, the bottom of the electric push rod 2 is fixedly connected to the top of the second valve cover 4, and both sides of the inner wall of the first valve cover 3 are fixedly connected to one side of the plate cleaning device 5;

[0043] Wherein, the plate cleaning device 5 comprises:

[0044] An inclined scraper 501, which cooperates with the movement of the valve plate 1 to scrape and clean the two sides thereof;

[0045] One side of the inclined scraper 501 is fixedly connected to the inner wall of the first valve cover 3;

[0046] The bottom of the first valve cover 3 is fixedly connected with a valve body 8, and both sides of the valve body 8 are sleeved and fixedly connected with assembly rings 9, and the inner wall of the valve body 8 is fixedly connected to the outer surface of the particle discharge device 7, and two particle discharge devices 7 are provided and evenly distributed on the inner wall of the valve body 8;

[0047] The top of the inclined scraper 501 is provided with an inclined circular hole 502, the top of the inclined scraper 501 is fixedly connected with an inclined baffle 503, the bottom of the inclined scraper 501 is fixedly connected with a V-shaped bottom plate 504, the bottom of the V-shaped bottom plate 504 is fixedly connected with an inclined scraper 505, a plurality of inclined circular holes 502 are provided and evenly distributed on the top of the inclined scraper 501, and a plurality of inclined scrapers 505 are provided and evenly distributed on the bottom of the V-shaped bottom plate 504;

[0048] The stripping device 6 includes a side inclined plate 601, both sides of which are fixedly connected with side thorn strips 602, the top of the side inclined plate 601 is fixedly connected with an inclined arc piece 603, one side of the inclined arc piece 603 is fixedly connected with a small scraper block 604, one side of the inclined arc piece 603 is provided with an arc surface circular hole 605, one side of the side inclined plate 601 is fixedly connected to one side of the valve plate 1, four inclined arc pieces 603 are provided and evenly distributed on the side inclined plate 601, and multiple arc surface circular holes 605 are provided and evenly distributed on the inclined arc piece 603. When in use, the valve plate 1 is pushed downward by the electric push rod 2, and the valve plate 1 moves downward until it is completely in contact with the valve body 8 to seal and close the valve, and the valve plate 1 is driven by the electric push rod 2 to move back upward to gradually separate from the valve body 8. The close contact of the valve body 8 allows water to flow inside the valve body 8 to open the valve. The electric push rod 2 is used to adjust the movement of the valve plate 1 to control the opening and closing of the valve, thereby achieving a self-control effect. When the valve plate 1 moves, the two side surfaces are always in close contact with the cleaning device 5. When the valve plate 1 moves, it drives the stripping devices 6 on both sides to move together. When the stripping device 6 moves upward, it contacts the top cleaning device 5. When the valve plate 1 moves back upward, the valve is in an open state, and the particle discharge device 7 can be used at any time to clean and discharge the particles deposited on the inner wall of the valve body 8 and the bottom of the valve plate 1. When the valve plate 1 moves back upward, both side surfaces are in close contact with the inclined scraper 501. The inclined scraper 501 cooperates with the movement of the valve plate 1 to slide and scrape the two side surfaces of the valve plate 1. The inclined circular hole on the top of the inclined scraper 501 502 facilitates the passage of water flow and particles. At the same time, the inclined baffle 503 on the top of the inclined scraper 501 blocks the particles deposited on the inclined scraper 501. The inclined scraper 505 is located at the bottom of the valve plate 1 and is always in an upward inclined state. When the valve plate 1 moves downward, the bottom contacts the inclined scraper 505 at the bottom. The inclined scraper 505 is pushed by the valve plate 1 and gradually bends and stretches downward. When the inclined scraper 505 contacts the bottom of the valve plate 1, it slides and scrapes the bottom of the valve plate 1. When the valve plate 1 moves upward, it drives the side inclined plates 601 on both sides to move together. When the side inclined plates 601 move, it drives the side thorn strips 602 on both sides and the top inclined arc piece 603 to move together. When the side thorn strips 602 move upward, they contact the inclined scraper 505 and pass through the inclined scraper 5 05 continues to move upward, and the inclined arc piece 603 contacts the inclined scraper plate 501 when moving and is pushed by the inclined scraper plate 501 to bend and stretch to both sides. The inclined arc piece 603 is in contact with the ground of the inclined scraper plate 501 at all times when bending and stretching to both sides. The inclined arc piece 603 peels and scrapes the bottom of the inclined scraper plate 501. At the same time, the inclined arc piece 603 drives the small scraper block 604 on one side to move together when bending and stretching to both sides at the bottom of the inclined scraper plate 501. The small scraper block 604 intermittently punctures the inclined circular hole 502 as the inclined arc piece 603 bends and stretches. At the same time, the arc circular hole 605 covering the outer surface of the inclined arc piece 603 with a large area is convenient for the passage of particles. When the valve plate 1 moves downward, it drives the side thorn strip 602 to move downward through the side inclined plate 601.When the side thorn bar 602 moves downward, it contacts the inclined scraper blade 505 again and passes through the inclined scraper blade 505, and the side thorn bar 602 scrapes the surface of the inclined scraper blade 505.

[0049] For the second embodiment, please refer to Figure 1-Figure 9 The present invention provides an automatic control valve for coal chemical industry that reduces the friction of fixed particles: the particle discharging device 7 includes an annular sleeve 701, the inner wall of the annular sleeve 701 is fixedly connected with an electric telescopic rod 702, both sides of the electric telescopic rod 702 are fixedly connected with an inner cleaning mechanism 703, the side of the inner cleaning mechanism 703 away from the electric telescopic rod 702 is fixedly connected with a semi-arc scraper 704, the side of the inner cleaning mechanism 703 away from the semi-arc scraper 704 is fixedly connected with an inner oblique ring piece 705, the outer surface of the inner oblique ring piece 705 is provided with an arc hole 706, the outer surface of the electric telescopic rod 702 is fixedly connected with a corrugated ring piece 707, the outer surface of the annular sleeve 701 is fixedly connected to the inner wall of the valve body 8, and a plurality of arc holes 706 are arranged and evenly distributed on the outer surface of the inner oblique ring piece 705;

[0050] The inner cleaning mechanism 703 includes a cross side plate 7031, one side of the cross side plate 7031 is fixedly connected to an outer oblique ring piece 7032, the outer surface of the outer oblique ring piece 7032 is provided with a small circular hole 7033, one side of the outer oblique ring piece 7032 is fixedly connected to a curved barb 7034, the side of the cross side plate 7031 close to the outer oblique ring piece 7032 is fixedly connected to an oblique stopper 7035, the side of the cross side plate 7031 away from the outer oblique ring piece 7032 is fixedly connected to one side of the semi-arc scraper 704, the side of the cross side plate 7031 close to the outer oblique ring piece 7032 is fixedly connected to one side of the inner oblique ring piece 705, and the side of the cross side plate 7031 close to the outer oblique ring piece 7032 is fixedly connected to the electric extension The drive shaft of the retracting rod 702 is fixedly connected, a plurality of small circular holes 7033 are provided and evenly distributed on the outer surface of the outer oblique ring piece 7032, a plurality of curved barbs 7034 are provided and evenly distributed on the outer surface of the outer oblique ring piece 7032, and a plurality of oblique stoppers 7035 are provided and evenly distributed on one side of the cross side plate 7031. When in use, when the valve plate 1 moves upward to open the valve body 8, the electric telescopic rod 702 drives the driving shaft to push the inner cleaning mechanism 703 to move on both sides. When the driving shaft moves, the corrugated ring piece 707 on the outer surface is extended. The corrugated ring piece 707 cooperates with the extension and contraction of the driving shaft while surrounding and covering it. When the inner cleaning mechanism 703 moves, it drives the semi-arc scraper 7 04 and the inner oblique ring piece 705 move together. When the semi-arc scraper 704 moves, it pushes and scrapes the lower half of the inner wall of the valve body 8. A large amount of deposited particles scraped off are discharged to one side along the inclined surface of the semi-arc scraper 704 in coordination with the flow of water. At the same time, the inner oblique ring piece 705 is always inclined inwardly and contacts the surface of the corrugated ring piece 707 as the inner cleaning mechanism 703 moves. When the inner oblique ring piece 705 moves, it slides and scrapes the outer surface of the corrugated ring piece 707. At the same time, the arc-shaped hole 706 opened on the inner oblique ring piece 705 facilitates the passage of water and particles. The electric telescopic rod 702 drives the driving shaft to push the cross side plates 7031 on both sides to move. When the cross side plate 7031 moves, it drives one side The outer oblique ring piece 7032 moves, and when it moves, it is in contact with the inner wall of the valve body 8 at all times. The outer oblique ring piece 7032 slides and scrapes the inner wall of the valve body 8. At the same time, the small circular hole 7033 opened on the outer surface of the outer oblique ring piece 7032 facilitates the passage of water and particulate matter. When the outer oblique ring piece 7032 moves, it will be tossed to a certain extent due to the friction contact with the inner wall of the valve body 8 and the influence of water flow. When the outer oblique ring piece 7032 is tossed, the curved barb 7034 on the outer surface will intermittently penetrate into the small circular hole 7033, and the curved barb 7034 will puncture the small circular hole 7033. At the same time, the oblique block 7035 on one side of the cross side plate 7031 always resists the outer oblique ring piece 7032.

[0051] When the present invention is operated and used, the valve plate 1 is pushed downward by the electric push rod 2, and the valve plate 1 moves downward until it is completely in contact with the valve body 8 to seal and close the valve. The valve plate 1 is driven upward by the electric push rod 2 to gradually break away from the contact with the valve body 8, so that water flows inside the valve body 8 to open the valve. The movement of the valve plate 1 is adjusted by the electric push rod 2 to control the opening and closing of the valve, thereby achieving a self-control effect. When the valve plate 1 moves, the two side surfaces are always in contact with the plate cleaning device 5. When the valve plate 1 moves, it drives the stripping devices 6 on both sides to move together. When the stripping device 6 moves upward, it contacts the plate cleaning device 5 on the top. When the valve plate 1 moves upward, the valve is in an open state, and the particles deposited on the inner wall of the valve body 8 and the bottom of the valve plate 1 can be cleaned and discharged at any time through the particle discharge device 7. When the valve plate 1 moves back upward, both side surfaces are in contact with the inclined scraper 501. The inclined scraper 501 cooperates with the movement of the valve plate 1 to slide and scrape the two side surfaces of the valve plate 1. The inclined circular hole 502 opened on the top of the inclined scraper 501 facilitates the passage of water and particles. At the same time, the inclined baffle 503 on the top of the inclined scraper 501 resists the particles deposited on the inclined scraper 501. The inclined scraper 505 is located at the bottom of the valve plate 1 and is always in an upward inclined state. When the valve plate 1 moves downward, the bottom is in contact with the inclined scraper 505 at the bottom. The inclined scraper 505 is pushed by the valve plate 1 and gradually bends and stretches downward. When the inclined scraper 505 contacts the bottom of the valve plate 1, it slides and scrapes the bottom of the valve plate 1. When the valve plate 1 moves upward, it drives the side inclined plates 601 on both sides to move together. When the plate 601 moves, it drives the side thorn strips 602 on both sides and the inclined arc piece 603 on the top to move together. When the side thorn strips 602 move upward, they contact with the inclined scraper 505 and pass through the inclined scraper 505 to continue to move upward. When the inclined arc piece 603 moves, it contacts with the inclined scraper plate 501 and is pushed by the inclined scraper plate 501 to bend and stretch to both sides. When the inclined arc piece 603 bends and stretches to both sides, it is always in contact with the ground of the inclined scraper plate 501. The inclined arc piece 603 peels and scrapes the bottom of the inclined scraper plate 501. At the same time, when the inclined arc piece 603 bends and stretches to both sides at the bottom of the inclined scraper plate 501, it drives the small scraper block 604 on one side to move together. The small scraper block 604 intermittently punctures the inclined circular hole 502 as the inclined arc piece 603 bends and stretches. At the same time, the large The arc-surface circular hole 605 covering the outer surface of the inclined arc piece 603 is convenient for the passage of particles. When the valve plate 1 moves downward, the side inclined plate 601 drives the side barb 602 to move downward. When the side barb 602 moves downward, it contacts the inclined scraper 505 again and passes through the inclined scraper 505. The side barb 602 moves and scrapes the surface of the inclined scraper 505. When the valve plate 1 moves upward to open the valve body 8, the electric telescopic rod 702 drives the driving shaft to push the inner cleaning mechanism 703 to move on both sides. When the driving shaft moves, the corrugated ring piece 707 on the outer surface is extended. The corrugated ring piece 707 cooperates with the extension and contraction of the driving shaft while surrounding and covering it. When the inner cleaning mechanism 703 moves, it drives the semi-arc scraper 704 and the inner oblique ring piece 705 to move together.When the semi-arc scraper 704 moves, it pushes and scrapes the lower half of the inner wall of the valve body 8. A large amount of deposited particles scraped away are discharged to one side along the inclined surface of the semi-arc scraper 704 in coordination with the flow of water. At the same time, the inner oblique ring piece 705 is always inclined inwardly and contacts the surface of the corrugated ring piece 707 as the inner cleaning mechanism 703 moves. When the inner oblique ring piece 705 moves, it slides and scrapes the outer surface of the corrugated ring piece 707. At the same time, the arc-shaped hole 706 provided on the inner oblique ring piece 705 facilitates the passage of water and particles. The electric telescopic rod 702 drives the driving shaft to push the cross side plates 7031 on both sides to move. When the cross side plate 7031 moves, it drives the outer oblique ring piece 703 on one side. 2 moves, the outer oblique ring piece 7032 is in contact with the inner wall of the valve body 8 at all times when it moves, and the outer oblique ring piece 7032 slides and scrapes the inner wall of the valve body 8. At the same time, the small circular hole 7033 on the outer surface of the outer oblique ring piece 7032 facilitates the passage of water flow and particles. When the outer oblique ring piece 7032 moves, it will be toggled to a certain extent due to the friction contact with the inner wall of the valve body 8 and the influence of water flow. When the outer oblique ring piece 7032 is toggled, the curved thorn bar 7034 on the outer surface will intermittently pierce the small circular hole 7033, and the curved thorn bar 7034 will pierce the small circular hole 7033. At the same time, the oblique block 7035 on one side of the cross side plate 7031 always resists the outer oblique ring piece 7032.

[0052] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. An automatic control valve for coal chemical industry to reduce friction of fixed particles, characterized in that: include: A valve plate (1), the valve plate (1) being used to control the flow rate of water and the opening and closing of the valve, and an electric push rod (2) arranged on the top of the valve plate (1); A first valve cover (3), the first valve cover (3) being used for storing the valve plate (1) and being adapted to the adjustment of the valve plate (1) without generating a gap, and a second valve cover (4) arranged on the top of the first valve cover (3); A plate cleaning device (5), the plate cleaning device (5) is used to clean the two sides and the bottom of the movable and adjustable valve plate (1) by scraping; A stripping device (6), which strips and cleans the surface of the parts of the plate cleaning device (5) as the valve plate (1) moves; A particle discharge device (7), which discharges solid particles deposited at the bottom of the valve plate (1) by coordinating with the flow of water when the particle discharge device (7) is pushed; The top of the valve plate (1) is fixedly connected to the driving shaft of the electric push rod (2), the bottom of the valve plate (1) passes through the first valve cover (3) and is slidably connected to the first valve cover (3), both sides of the valve plate (1) are fixedly connected to one side of the stripping device (6), the bottom of the electric push rod (2) is fixedly connected to the top of the second valve cover (4), and both sides of the inner wall of the first valve cover (3) are fixedly connected to one side of the plate cleaning device (5); Wherein, the plate cleaning device (5) comprises: An inclined scraper (501) is used to scrape and clean the two sides of the valve plate (1) in coordination with the movement of the valve plate (1); One side of the inclined scraper (501) is fixedly connected to the inner wall of the first valve cover (3).

2. The automatic control valve for coal chemical industry for reducing fixed particle friction according to claim 1, characterized in that: The bottom of the first valve cover (3) is fixedly connected to a valve body (8), both sides of the valve body (8) are sleeved and fixedly connected with assembly rings (9), the inner wall of the valve body (8) is fixedly connected to the outer surface of the particle discharge device (7), and the particle discharge device (7) is provided with two particles that are evenly distributed on the inner wall of the valve body (8).

3. The automatic control valve for coal chemical industry for reducing fixed particle friction according to claim 1, characterized in that: The top of the inclined scraper (501) is provided with an inclined circular hole (502), the top of the inclined scraper (501) is fixedly connected with an inclined baffle (503), the bottom of the inclined scraper (501) is fixedly connected with a V-shaped bottom plate (504), the bottom of the V-shaped bottom plate (504) is fixedly connected with an inclined scraper (505), a plurality of the inclined circular holes (502) are arranged and are evenly distributed on the top of the inclined scraper (501), and a plurality of the inclined scraper (505) are arranged and are evenly distributed on the bottom of the V-shaped bottom plate (504).

4. The automatic control valve for coal chemical industry for reducing fixed particle friction according to claim 1, characterized in that: The stripping device (6) comprises a side inclined plate (601), both sides of which are fixedly connected to side thorn strips (602), the top of the side inclined plate (601) is fixedly connected to an inclined arc piece (603), one side of the inclined arc piece (603) is fixedly connected to a small scraper block (604), and one side of the inclined arc piece (603) is provided with an arc surface circular hole (605).

5. The automatic control valve for coal chemical industry for reducing fixed particle friction according to claim 4, characterized in that: One side of the side inclined plate (601) is fixedly connected to one side of the valve plate (1), four inclined arc sheets (603) are provided and are evenly distributed on the side inclined plate (601), and a plurality of arc surface circular holes (605) are provided and are evenly distributed on the inclined arc sheets (603).

6. The automatic control valve for coal chemical industry for reducing fixed particle friction according to claim 1, characterized in that: The particle discharging device (7) comprises an annular sleeve (701), the inner wall of which is fixedly connected to an electric telescopic rod (702), both sides of which are fixedly connected to an inner cleaning mechanism (703), a side of the inner cleaning mechanism (703) away from the electric telescopic rod (702) is fixedly connected to a semi-arc scraper (704), a side of the inner cleaning mechanism (703) away from the semi-arc scraper (704) is fixedly connected to an inner oblique ring piece (705), an outer surface of the inner oblique ring piece (705) is provided with an arc-shaped hole (706), and a corrugated ring piece (707) is fixedly connected to the outer surface of the electric telescopic rod (702).

7. The automatic control valve for coal chemical industry for reducing fixed particle friction according to claim 6, characterized in that: The outer surface of the annular sleeve (701) is fixedly connected to the inner wall of the valve body (8), and a plurality of arc-shaped holes (706) are provided and evenly distributed on the outer surface of the inner oblique ring sheet (705).

8. The automatic control valve for coal chemical industry for reducing fixed particle friction according to claim 6, characterized in that: The inner cleaning mechanism (703) comprises a cross side plate (7031), one side of the cross side plate (7031) is fixedly connected to an outer oblique ring piece (7032), the outer surface of the outer oblique ring piece (7032) is provided with a small circular hole (7033), one side of the outer oblique ring piece (7032) is fixedly connected to a curved barb (7034), and one side of the cross side plate (7031) close to the outer oblique ring piece (7032) is fixedly connected to an oblique stopper (7035).

9. The automatic control valve for coal chemical industry for reducing friction of fixed particles according to claim 8, characterized in that: The side of the cross side plate (7031) away from the outer oblique ring piece (7032) is fixedly connected to one side of the semi-arc scraper (704), the side of the cross side plate (7031) close to the outer oblique ring piece (7032) is fixedly connected to one side of the inner oblique ring piece (705), and the side of the cross side plate (7031) close to the outer oblique ring piece (7032) is fixedly connected to the drive shaft of the electric telescopic rod (702).

10. The automatic control valve for coal chemical industry for reducing fixed particle friction according to claim 8, characterized in that: The small circular holes (7033) are provided in plurality and are evenly distributed on the outer surface of the outer oblique ring piece (7032), the curved barbs (7034) are provided in plurality and are evenly distributed on the outer surface of the outer oblique ring piece (7032), and the oblique stoppers (7035) are provided in plurality and are evenly distributed on one side of the cross side plate (7031).

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