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 the materials cannot be accumulated on the valve plate and the idler wheels, after the valve is closed, the 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 utility model discloses a kind of anti-jamming closed slide valves with material switching, belong to solid material bin discharging slide valve technical field. BACKGROUND

[0002] In the field of industrial production, the bottom of the material bin for storing solid materials often needs to be opened and closed with material to meet the production process requirements. When opening and closing with material, solid materials are easy to enter the movement gap of the discharging equipment, causing jamming, and often there is dust, even toxic and harmful gas overflow.

[0003] Chinese patent CN214652103U provides a kind of material bin device, including bin, discharging mechanism is located at the bottom of bin and is connected with bin, material in bin space can be continuously pushed to discharging port by the pushing unit of discharging mechanism, so that viscous non-flowing material is forced to push out of bin. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model provides a kind of anti-jamming closed slide valve with material switching, which is matched with the inclined material port of the bin through the whole slide valve, to ensure reliable opening and closing action, and also prevents dust or toxic and harmful gas overflow due to the whole closed design of the slide valve.

[0005] To achieve the above purpose, the utility model is realized by the following technical scheme:

[0006] A kind of anti-jamming closed slide valve with material switching, including closed valve housing, hydraulic cylinder and valve plate, hydraulic cylinder is installed at one end of valve housing and the piston of hydraulic cylinder extends into valve housing, the other end of valve housing forms discharge port, valve plate is provided in valve housing, one end of valve plate is connected with the piston end of hydraulic cylinder, one side of valve housing is opened, the opening is communicated with the bottom outlet of bin, the lower outlet of valve plate is provided, the lower outlet of valve plate forms blocking part on one side, the valve plate moves back and forth under the drive of hydraulic cylinder, the blocking part of valve plate and lower outlet are alternately matched with the bottom outlet of bin to form valve closing and valve opening mode, the whole slide valve is inclined at angle a with horizontal, and the angle is greater than the angle of repose of material.

[0007] Further, the lower outlet of valve plate is located on the upper side of blocking part, the lower outlet of valve plate is against the bottom outlet of bin to form valve opening mode when hydraulic cylinder piston extends, the blocking part of valve plate is located on the side of valve discharge port in opening mode, the blocking part of valve plate is against the bottom outlet of bin to form valve closing mode when hydraulic cylinder piston retracts, the moving direction of valve plate between closing and opening is inclined at angle a with horizontal, and the angle is greater than the angle of repose of material.

[0008] Further, the width of lower outlet of valve plate is less than the width of valve plate, so that the roller is appropriately away from lower outlet.

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

[0010] Further, the rollers are provided with bosses near the side edges of the valve plate, and the valve plate moves in the track defined by the bosses of the rollers, which can effectively limit the left and right swing of the valve plate during movement, so that the valve plate moves along a straight line as much as possible.

[0011] Further, the valve housing is installed at the bottom outlet of the bin through a flange, the bottom outlet of the bin is arranged obliquely, and the plane of the bottom outlet of the bin is parallel to the plane of the opening of the valve housing.

[0012] Further, an interface matched with the bottom of the bin is arranged at the opening 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] Further, a purge gas interface is arranged at one end of the valve housing for connecting to a purge gas or a high-temperature gas.

[0014] Further, wear-resistant lining plates are arranged on the bottom and the side wall of the valve housing to avoid excessive wear of the distributor and prolong the service life of the equipment.

[0015] Further, one end of the valve plate is hinged to the piston end of the hydraulic cylinder, and the valve plate moves in the track defined between the upper and lower rollers on both sides.

[0016] The utility model relates to a kind of anti-jamming closed slide valve with material switching, applied to the unloading of solid material bin, the valve whole of the utility model is with "a" angle with water level, the angle is greater than the angle of repose of material, ensure that valve plate, roller will not store material, after valve is closed, material will not be stored in the inner cavity of valve, maximum avoid jamming when valve opening and closing. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the front view of the utility model slide valve "closed" state;

[0018] Figure 2 It is the front view of the utility model slide valve "open" state;

[0019] Figure 3 It is the utility model slide valve "A direction" view;

[0020] Figure 4 It is the utility model slide valve "B direction" view;

[0021] Figure number:

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

[0023] 4 - valve plate, 41 - discharge opening,

[0024] 5 - roller, 51 - boss,

[0025] 6 - lining plate. DETAILED DESCRIPTION

[0026] The utility model will be further described below in combination with the drawings:

[0027] Embodiment: please see Figures 1 to 4 A kind of anti-jamming closed slide valve with material switch, including closed valve housing 2, hydraulic cylinder 3 and valve plate 4, hydraulic cylinder 4 is installed in valve housing 2 one end and the piston of hydraulic cylinder 3 extends into valve housing 2, another end of valve housing 2 forms discharge opening, valve plate 4 is arranged in valve housing 2, one end of valve plate 4 is connected with the piston end of hydraulic cylinder 3, the opening of one side of valve housing 2, which is communicated with the bottom outlet of bunker 1, discharge opening 41 is arranged on valve plate 4, the side of valve plate discharge opening forms blocking part, valve plate 4 is moved back and forth under the drive of hydraulic cylinder 3, the blocking part of valve plate 4 and discharge opening are alternately matched with the bottom outlet of bunker to form valve closing and valve opening mode, the slide valve as a whole is at angle a with horizontal, and the angle is greater than the angle of repose of material.

[0028] Please see Figures 1 to 3 In the embodiment of the utility model, the discharge opening 41 of valve plate 4 is located on the upper side of blocking part, the discharge opening 41 of valve plate 4 is opposite the bottom outlet of bunker 1 when the piston of hydraulic cylinder 3 extends, to form valve opening mode, the blocking part of valve plate 4 is located on the side of valve discharge opening and close to discharge opening in opening mode, the blocking part of valve plate 4 is opposite the bottom outlet of bunker when the piston of hydraulic cylinder 3 is retracted, to form valve closing mode, the moving direction of valve plate 4 between closing and opening is at angle a with horizontal, and the angle is greater than the angle of repose of material. Two rows of rollers 5 are arranged on the two sides of valve plate 4, part of each row of rollers is located on the upper surface of valve plate 4, and the other part of rollers is located on the lower surface of valve plate 4, the upper and lower rollers are staggered arranged along the upper and lower surfaces of valve plate 4, and each roller is installed on valve housing 2. In the embodiment of the utility model, the boss 51 is arranged on the side of roller 5 close to valve plate, and valve plate 4 moves in the track defined by roller boss, so that the left and right swing of valve plate when moving can be effectively limited, and the valve plate moves along straight line as much as possible.

[0029] In the embodiment of the utility model, the opening of one side of valve housing 2 is installed on the bottom outlet of bunker 1 through flange, and the bottom outlet of bunker 1 is arranged in an inclined manner, and the plane of bottom outlet of bunker is parallel to the plane of opening of valve housing.

[0030] In order to improve the fitting tightness, in the embodiment of the utility model, the interface matched with the bottom of bunker 1 is arranged at the opening of one side of valve housing 2, the interface extends into valve housing and cooperates with valve plate 4 to form closing or opening mode.

[0031] The structure and effect of the utility model are explained as follows:

[0032] 1. The valve plate 4 is driven by the hydraulic cylinder 3 to move between the rollers 5 to realize opening and closing actions. During the action process, only the friction between the rollers and the valve plate and the friction between the valve plate and the material need to be overcome, and the gravity of the material in the silo does not need to be overcome, so the load is small; at the same time, when the valve is closed, the gravity of the material in the whole silo is transmitted to the rollers by the valve plate, and the additional power provided by the driving mechanism hydraulic cylinder of the valve itself is not needed, even if the power of the hydraulic cylinder is interrupted, as long as the oil pressure in the hydraulic cylinder is locked, the valve will not be opened, which is energy-saving, safe and reliable.

[0033] 2. The whole valve forms an angle "a" with the horizontal plane, and the angle is greater than the repose angle of the material, so that the material cannot be accumulated on the valve plate and the rollers, and the material cannot be accumulated in the inner cavity of the valve after the valve is closed, and the jamming during the opening and closing of the valve is avoided to the greatest extent.

[0034] 3. The discharge opening width of the valve plate 4 is appropriately smaller than the width of the valve plate, so that the rollers 5 are appropriately away from the discharge opening, and the influence of the material flow on the rollers during the opening and closing of the valve can be reduced, and the jamming is reduced as much as possible.

[0035] 4. Wear-resistant lining plates 6 are arranged on the bottom and the side wall of the valve housing 2 and the areas in contact with the material, and the valve plate 4 itself is made of wear-resistant material, so that the silo and the valve plate are prevented from being worn too fast, and the service life of the valve is prolonged.

[0036] 5. The rollers 5 are designed with bosses near the side edge of the valve plate, as shown in Figure 3 , which can effectively limit the left and right swinging of the valve plate during movement, so that the valve plate moves along a straight line as much as possible.

[0037] 6. Each row of rollers 5 is arranged alternately along the upper and lower surfaces of the valve plate, which can limit the displacement perpendicular to the surface of the valve plate during movement, and the valve plate runs more stably.

[0038] 7. The valve housing 2 is provided with two blowing gas interfaces 21 and 22 at the front end, as shown in Figure 4 , blowing gas can be introduced to blow the valve plate, the rollers and the track and other parts periodically. If the water content of the material is large, high-temperature gas can also be introduced, which has the following three effects: 1) drying and ash removal of the internal cavity of the valve, especially the valve plate and the rollers; 2) by maintaining a certain temperature in the cavity, condensation in the cavity can be prevented, and powder ash adhesion can be reduced; 3) in winter or other conditions with low ambient temperature, through high-temperature gas drying and heating, freezing of the internal equipment can be prevented. The action of the valve is reliable to the greatest extent.

[0039] 8. The whole valve is sealed, and only the inlet connected to the silo and the outlet connected to the next process are provided, so that the overflow of dust or possible toxic and harmful gas can be avoided, and the environment and safety can be ensured.

[0040] The above-described embodiments are merely illustrative for the application and any modification, change, or improvement made by any person skilled in the art with the application shall fall within the scope of the patent claimed by the application, and are not limited to the embodiments disclosed.

Claims

1. A jam-proof closed slide valve with a strip carrying switch, characterized in that: The valve comprises 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, the valve plate is arranged in the valve housing and connected with the piston end of the hydraulic cylinder, one side of the valve housing is provided with an opening which is communicated with the outlet of the bottom of the bin, the valve plate is provided with a discharge port, one side of the discharge port of the valve plate forms a blocking part, the valve plate moves forward and backward under the driving of the hydraulic cylinder, the blocking part and the discharge port of the valve plate are alternately matched with the outlet of the bottom of the bin to form a valve closing mode and a valve opening mode, and the slide valve is in a horizontal angle a, and the angle is greater than the repose angle of the material.

2. A choke-proof enclosed sliding valve with a strip carrying switch according to claim 1, characterized in that: The discharge port of the valve plate is located above the blocking part, the discharge port of the valve plate faces the outlet of the bottom of the bin when the piston of the hydraulic cylinder extends to form the valve opening mode, the blocking part of the valve plate is located at the discharge port side of the valve in the opening mode, the blocking part of the valve plate faces the outlet of the bottom of the bin when the piston of the hydraulic cylinder retracts to form the valve closing mode, the moving direction of the valve plate between the closing mode and the opening mode is in the horizontal angle a, and the angle is greater than the repose angle of the material.

3. A choke-proof enclosed sliding valve with a strip carrying switch according to claim 2, characterized in that: The width of the discharge port of the valve plate is less than the width of the valve plate, so that the rollers are appropriately away from the discharge port.

4. A choke-proof enclosed sliding valve with a strip carrying switch 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 of rollers are located above the valve plate, and part of the rollers are located below the valve plate, the upper and lower rollers are arranged in a staggered manner along the upper and lower surfaces of the valve plate, and each roller is installed on the valve housing.

5. A choke-proof enclosed sliding valve with a strip carrying switch according to claim 4, characterized in that: The rollers are provided with bosses near the side edges of the valve plate, the valve plate moves in the track defined by the bosses of the rollers, the left and right swinging of the valve plate during movement can be effectively limited, and the valve plate moves along a straight line as much as possible.

6. A choke-proof enclosed sliding valve with a strip carrying switch according to claim 1, characterized in that: The opening of the valve housing is installed on the outlet of the bottom of the bin through a flange, the outlet of the bottom of the bin is arranged in an inclined manner, and the plane of the outlet of the bottom of the bin is parallel to the plane of the opening of the valve housing.

7. A choke-proof enclosed sliding valve with a strip carrying switch according to claim 1, characterized in that: An interface matched with the bottom of the bin is arranged at the opening of the valve housing, the interface extends into the valve housing and cooperates with the valve plate to form the closing mode or the opening mode.

8. A choke-proof enclosed sliding valve with a strip carrying switch according to claim 1, characterized in that: A purge gas interface is arranged at one end of the valve housing for connecting to a purge gas or a high-temperature gas.

9. A choke-proof enclosed sliding valve with a strip carrying switch according to claim 1, characterized in that: Wear-resistant lining plates are arranged on the bottom and the side wall of the valve housing to avoid excessive wear of the distributor and prolong the service life of the equipment.

10. A choke-proof closed slide valve with a strip carrying switch according to one of claims 1 to 9, characterized in that: One end of the valve plate is hinged with the piston end of the hydraulic cylinder, and the valve plate moves in the track defined between the upper and lower rollers and on both sides.

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