Anti-jamming closed slide valve capable of being opened and closed with materials

Abstract

The anti-jamming closed type sliding valve comprises a closed type valve shell, a hydraulic cylinder and a valve plate, an opening is formed in one side of the valve shell and communicated with an outlet in the bottom of a stock bin, a discharging opening is formed in the valve plate, a blocking part is formed on one side of the discharging opening of the valve plate, and the valve plate is driven by the hydraulic cylinder to move front and back. The blocking part and the discharging opening of the valve plate are alternately matched with the outlet in the bottom of the stock bin to form a valve closing mode and a valve opening mode. The discharging valve is applied to discharging of a solid material bin, the whole valve forms an alpha angle with the horizontal plane, the angle is larger than the repose angle of materials, it is guaranteed that materials cannot be accumulated on the valve plate and the idler wheels, after the valve is closed, materials cannot be accumulated in an inner cavity of the valve, and blocking during opening and closing of the valve is avoided to the maximum extent.

Description

Technical Field

[0001] The invention discloses an anti-jamming closed slide valve capable of opening and closing with materials, belonging to the technical field of slide valves for unloading solid material bins. Background Art

[0002] In the field of industrial production, the bottom unloading equipment of the silo storing solid materials often needs to be opened and closed with materials to meet the requirements of the production process. When opening and closing with materials, solid materials are easy to enter the movement gap of the unloading equipment, causing obstruction, and with the unloading of materials, there is often dust and even toxic and harmful gases overflowing.

[0003] Chinese document CN214652103U provides a material silo device, including a silo, a discharge mechanism arranged at the bottom of the silo and connected to the silo, and a pushing unit of the discharge mechanism can continuously push the material in the silo space to the discharge port, so that the viscous non-flowing material is forced out of the silo. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides an anti-stuck closed sliding valve that can be opened and closed with materials. The sliding valve as a whole cooperates with the inclined material port of the silo to ensure reliable opening and closing actions. At the same time, the overall closed design of the sliding valve prevents dust or toxic and harmful gases from overflowing.

[0005] To achieve the above object, the present invention is achieved through the following technical solutions:

[0006] A closed anti-jamming sliding valve that can be used to switch materials includes a closed valve housing, a hydraulic cylinder and a valve plate. The hydraulic cylinder is installed at one end of the valve housing and the piston of the hydraulic cylinder extends into the valve housing. The other end of the valve housing forms a discharge port. A valve plate is provided in the valve housing. One end of the valve plate is connected to the piston end of the hydraulic cylinder. One side of the valve housing is open, and the opening is connected to the bottom outlet of the silo. A discharge port is provided on the valve plate. A blocking portion is formed on one side of the discharge port of the valve plate. The valve plate moves back and forth under the drive of the hydraulic cylinder. The blocking portion and the discharge port of the valve plate alternately cooperate with the bottom outlet of the silo to form a valve closing and valve opening mode. The sliding valve as a whole forms an angle a with the horizontal, and the angle is greater than the repose angle of the material.

[0007] Furthermore, the discharge port of the valve plate is located on the upper side of the blocking part. When the hydraulic cylinder piston is extended, the discharge port of the valve plate faces the bottom outlet of the silo to form a valve opening mode. In the opening mode, the blocking part of the valve plate is located on the valve discharge port side. When the hydraulic cylinder piston is retracted, the blocking part of the valve plate faces the bottom outlet of the silo to form a valve closing mode. The movement direction of the valve plate between closing and opening forms an angle a with the horizontal, which is greater than the repose angle of the material.

[0008] Furthermore, the width of the discharge port of the valve plate is smaller than the width of the valve plate, so that the roller is appropriately away from the discharge port.

[0009] Furthermore, two rows of rollers are arranged on both sides of the valve plate, part of the rollers in each row are located above the valve plate, part of the rollers are located below the valve plate, the upper and lower rollers are arranged alternately along the upper and lower surfaces of the valve plate, and each roller is installed on the valve housing.

[0010] Furthermore, a boss is provided on the side of the roller near the valve plate, and the valve plate moves within the track defined by the roller boss, which can effectively limit the left and right swing of the valve plate during movement, so that the valve plate moves in a straight line as much as possible.

[0011] Furthermore, an opening on one side of the valve housing is installed at the bottom outlet of the silo through a flange, and the bottom outlet of the silo is arranged obliquely, and the plane of the bottom outlet of the silo is parallel to the plane of the valve housing opening.

[0012] Furthermore, an interface that cooperates with the bottom of the silo is provided at an opening on one side of the valve housing. The interface extends into the valve housing and cooperates with the valve plate to form a closed or open mode.

[0013] Furthermore, a purge gas interface is provided at one end of the valve housing for passing purge gas or high-temperature gas.

[0014] Furthermore, the bottom and side walls of the valve housing are provided with wear-resistant linings to prevent the distributor from wearing out too quickly and extend the service life of the equipment.

[0015] Furthermore, one end of the valve plate is hinged to the piston end of the hydraulic cylinder, and the valve plate moves between the upper and lower rollers and within the limited tracks on both sides.

[0016] The present invention discloses an anti-stuck closed sliding valve capable of opening and closing with materials, which is applied to the unloading of solid material bins. The valve as a whole forms an angle "a" with the horizontal, which is larger than the repose angle of the material, thereby ensuring that materials will not accumulate on the valve plate and the roller. After the valve is closed, materials will not accumulate in the inner cavity of the valve, thereby avoiding jamming of the valve when opening and closing to the greatest extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of the slide valve of the present invention in the "closed" state;

[0018] Figure 2 This is a front view of the slide valve of the present invention in the "open" state;

[0019] Figure 3 This is the "A" view of the slide valve of the present invention;

[0020] Figure 4 This is a view of the slide valve of the present invention in the direction of "B";

[0021] Part Number in the Figure:

[0022] 1-silo, 2-valve housing, 3-hydraulic cylinder,

[0023] 4-valve plate, 41-feeding port,

[0024] 5-roller, 51-boss,

[0025] 6- Lining plate. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings:

[0027] Example: See Figures 1 to 4 , an anti-jamming closed sliding valve that can be switched with materials, comprising a closed valve housing 2, a hydraulic cylinder 3 and a valve plate 4, the hydraulic cylinder 4 is installed at one end of the valve housing 2 and the piston of the hydraulic cylinder 3 extends into the valve housing 2, and the other end of the valve housing 2 forms a discharge port, a valve plate 4 is provided in the valve housing 2, one end of the valve plate 4 is connected to the piston end of the hydraulic cylinder 3, one side of the valve housing 2 is open, and the opening is connected to the bottom outlet of the silo 1, a discharge port 41 is provided on the valve plate 4, and a blocking portion is formed on one side of the valve plate discharge port, and the valve plate 4 moves back and forth under the drive of the hydraulic cylinder 3, and the blocking portion and the discharge port of the valve plate 4 alternately cooperate with the bottom outlet of the silo to form a valve closing and valve opening mode, and the sliding valve as a whole forms an angle a with the horizontal, which is greater than the repose angle of the material.

[0028] See also Figures 1 to 3 In one embodiment of the present invention, the feed opening 41 of the valve plate 4 is located on the upper side of the blocking part. When the piston of the hydraulic cylinder 3 is extended, the feed opening 41 of the valve plate 4 faces the bottom outlet of the silo 1 to form a valve opening mode. In the opening mode, the blocking part of the valve plate 4 is located on the side of the valve discharge port and close to the discharge port. When the piston of the hydraulic cylinder 3 is retracted, the blocking part of the valve plate 4 faces the bottom outlet of the silo to form a valve closing mode. The moving direction of the valve plate 4 between closing and opening forms an angle a with the horizontal, which is greater than the repose angle of the material. Two rows of rollers 5 are arranged on both sides of the valve plate 4. Part of each row of rollers is located above the valve plate 4, and the other part of the rollers is located below the valve plate 4. The upper and lower rollers are arranged alternately along the upper and lower surfaces of the valve plate 4, and each roller is installed on the valve housing 2. In one embodiment of the present invention, the roller 5 is provided with a boss 51 near the side of the valve plate. The valve plate 4 moves in the track defined by the roller boss, which can effectively limit the left and right swing of the valve plate when it moves, so that the valve plate moves as straight as possible.

[0029] In one embodiment of the present invention, one side opening of the valve housing 2 is installed at the bottom outlet of the silo 1 through a flange. The bottom outlet of the silo 1 is inclined, and the plane of the bottom outlet of the silo is parallel to the plane of the valve housing opening.

[0030] In order to improve the tightness of the fit, in one embodiment of the present invention, an opening on one side of the valve housing 2 is provided with an interface that matches with the bottom of the silo 1. The interface extends into the valve housing and matches with the valve plate 4 to form a closed or open mode.

[0031] The structure and effects of the present invention are described as follows:

[0032] 1. The hydraulic cylinder 3 drives the valve plate 4 to move between the rollers 5 to achieve the opening and closing action. During the action, it is only necessary to overcome the friction between the roller and the valve plate and the friction between the valve plate and the material, without overcoming the gravity of the material in the silo, and the action load is small; at the same time, when the valve is closed, the gravity of the material in the entire silo is transmitted to the roller by the valve plate, and the hydraulic cylinder of the valve's own driving mechanism does not need to provide additional power. Even if the power oil of the hydraulic cylinder is interrupted, as long as the oil pressure in the hydraulic cylinder is locked, the valve will not open, which is both energy-saving and safe and reliable.

[0033] 2. The valve as a whole forms an angle "a" with the horizontal, which is greater than the repose angle of the material, ensuring that no material will accumulate on the valve plate and roller. After the valve is closed, no material will accumulate in the valve cavity, thus minimizing the possibility of valve jamming when opening and closing.

[0034] 3. The width of the discharge port of the valve plate 4 is appropriately smaller than the width of the valve plate, so that the roller 5 is appropriately away from the discharge port, which can reduce the impact of the material flow on the roller when the valve is opened and closed, and minimize the obstruction.

[0035] 4. The bottom and side walls of the valve housing 2 and other areas in contact with the material are provided with wear-resistant lining plates 6. The valve plate 4 itself is made of wear-resistant material to avoid excessive wear of the housing and the valve plate, thereby extending the service life of the valve.

[0036] 5. The roller 5 is designed with a boss near the valve plate side, see Figure 3 , which can effectively limit the left and right swing of the valve plate when it moves, and make the valve plate move in a straight line as much as possible.

[0037] 6. Each row of rollers 5 is staggered along the upper and lower surfaces of the valve plate, which can limit the displacement of the valve plate perpendicular to the plate surface when the valve plate moves, making the valve plate run more smoothly.

[0038] 7. Two purge gas interfaces 21 and 22 are provided at the front end of the valve housing 2. Figure 4 As shown, purge gas can be introduced to regularly purge the valve plate, roller, track and other parts. If the material has a high water content, high-temperature gas can also be introduced, which has the following three functions: 1) Dry and clean the internal cavity of the valve, especially the valve plate, roller and other parts; 2) By maintaining a certain temperature in the cavity, condensation in the cavity can be prevented and powder and ash adhesion can be reduced. 3) In winter or other working conditions with low ambient temperatures, high-temperature gas drying and heating can prevent ice and freezing inside the equipment. Ensure the reliability of valve operation to the greatest extent.

[0039] 8. The valve is completely closed, with only the feed port connected to the silo and the discharge port connected to the next process, which can avoid the spillage of dust or possible toxic and harmful gases, ensuring environmental protection and safety.

[0040] The above records are only embodiments of the present invention. Any modification or change made by a person familiar with the present technology using the present invention shall fall within the patent scope claimed by the present invention and shall not be limited to those disclosed in the embodiments.

Claims

1. An anti-jamming closed slide valve capable of opening and closing with material, characterized in that: It includes a closed valve housing, a hydraulic cylinder and a valve plate. The hydraulic cylinder is installed at one end of the valve housing and the piston of the hydraulic cylinder extends into the valve housing. The other end of the valve housing forms a discharge port. A valve plate is provided in the valve housing. One end of the valve plate is connected to the piston end of the hydraulic cylinder. One side of the valve housing is open, and the opening is connected to the bottom outlet of the silo. A discharge port is provided on the valve plate. A blocking part is formed on one side of the discharge port of the valve plate. The valve plate moves back and forth under the drive of the hydraulic cylinder. The blocking part and the discharge port of the valve plate alternately cooperate with the bottom outlet of the silo to form a valve closing and valve opening mode. The sliding valve as a whole forms an angle a with the horizontal, and the angle is greater than the repose angle of the material.

2. The anti-jamming closed slide valve capable of opening and closing with material according to claim 1, characterized in that: The discharge port of the valve plate is located on the upper side of the blocking part. When the hydraulic cylinder piston extends, the discharge port of the valve plate faces the bottom outlet of the silo to form a valve opening mode. In the opening mode, the blocking part of the valve plate is located on the valve discharge port side. When the hydraulic cylinder piston retracts, the blocking part of the valve plate faces the bottom outlet of the silo to form a valve closing mode. The movement direction of the valve plate between closing and opening forms an angle a with the horizontal, which is greater than the repose angle of the material.

3. The anti-jamming closed slide valve capable of opening and closing with material according to claim 2, characterized in that: The width of the discharge port of the valve plate is smaller than the width of the valve plate, so that the roller is appropriately away from the discharge port.

4. The anti-jamming closed slide valve capable of opening and closing with material according to claim 1, characterized in that: Two rows of rollers are arranged on both sides of the valve plate, part of the rollers in each row are located above the valve plate, part of the rollers are located below the valve plate, the upper and lower rollers are arranged alternately along the upper and lower surfaces of the valve plate, and each roller is installed on the valve housing.

5. The anti-jamming closed slide valve capable of opening and closing with material according to claim 4, characterized in that: The roller is provided with a boss near the side of the valve plate. The valve plate moves in the track defined by the roller boss, which can effectively limit the left and right swing of the valve plate when it moves, so that the valve plate moves in a straight line as much as possible.

6. The anti-jamming closed slide valve capable of opening and closing with material according to claim 1, characterized in that: One side opening of the valve housing is installed at the bottom outlet of the silo through a flange. The bottom outlet of the silo is arranged obliquely, and the plane of the bottom outlet of the silo is parallel to the opening plane of the valve housing.

7. The anti-jamming closed slide valve capable of opening and closing with material according to claim 1, characterized in that: An interface that cooperates with the bottom of the silo is provided at an opening on one side of the valve housing. The interface extends into the valve housing and cooperates with the valve plate to form a closed or open mode.

8. The anti-jamming closed slide valve capable of opening and closing with material according to claim 1, characterized in that: A purge gas interface is provided at one end of the valve housing for passing purge gas or high-temperature gas.

9. The anti-jamming closed slide valve capable of opening and closing with material according to claim 1, characterized in that: The bottom and side walls of the valve body are equipped with wear-resistant linings to prevent the distributor from excessive wear and extend the service life of the equipment.

10. An anti-jamming closed slide valve capable of opening and closing with material according to any one of claims 1 to 9, characterized in that: One end of the valve plate is hinged to the piston end of the hydraulic cylinder, and the valve plate moves between the upper and lower rollers and within the limited tracks on both sides.

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