Intelligent flexible sealing double-layer discharging air locking valve

Abstract

The utility model belongs to the technical field of cinder valves, and discloses an intelligent flexible sealing double-layer discharge blocking valve which comprises a barrel, a first mounting groove and a second mounting groove are formed in the outer side of the barrel, an upper valve nozzle and a discharge nozzle are arranged on the inner side of the barrel and connected with sealing structures, a first transmission structure is arranged on the inner side of the first mounting groove, and a second transmission structure is arranged on the inner side of the second mounting groove. The first transmission structure is matched with the sealing structure of the upper valve nozzle, the second installation groove is connected with a second transmission structure, the second transmission structure is matched with the sealing structure of the discharging nozzle, the upper valve nozzle is connected with an overhauling structure, the overhauling structure is in flange connection with an ash bin, and the lower end of the barrel is connected with a discharging chute. During working, the upper electric flap valve and the lower electric flap valve are alternately opened, at the moment, materials sequentially pass through the upper turnover valve plate and the lower turnover valve plate from the ash bin and are finally discharged out of the ash bin, discharging is achieved, in the whole discharging process, one valve plate is always closed, and therefore air leakage cannot occur in the whole discharging process.

Description

Technical Field

[0001] This utility model belongs to the field of ash discharge valve technology, specifically relating to an intelligent flexible sealing double-layer unloading airlock valve. Background Technology

[0002] Ash discharge valves are the main equipment for ash discharge and feeding from equipment silos, and are suitable for both powdery and granular materials. They are widely used in environmental protection, metallurgy, chemical, grain, food, and power industries.

[0003] In the sintering process of steel enterprises, air leakage in the sintering machine is a difficult defect to overcome. The double-layer discharge valve used in the electrostatic precipitator at the machine head and the main flue in the sintering production process is the main source of air leakage. Due to process reasons, the material discharged by the electrostatic precipitator at the machine head is mainly dust <0.5mm, while the material discharged by the main flue is some loose material that leaks from the sintered ore through the air box into the sintering main flue. The purpose of setting up a double-layer ash discharge valve is to ensure that during the ash discharge process, the negative pressure state of the exhaust system does not decrease due to air leakage during ash discharge, thereby affecting normal sintering production. The old-fashioned ash discharge valve often fails due to material blockage, jamming, wear, and incomplete closure, reducing the negative pressure rate of the exhaust system, affecting the output and quality of sintered ore, and increasing the labor intensity of workers. In view of the above, a double-layer discharge valve that is very suitable for this working condition and facility has been successfully developed. Combined with a complete centralized control system, this equipment problem in sintering production has been solved in one fell swoop. After actual application in the production field, the effect is extremely significant. A search revealed no devices identical or similar to the present invention. Utility Model Content

[0004] In view of the above-mentioned shortcomings in the prior art, the present invention provides an intelligent flexible sealing double-layer unloading airlock valve with a long service life that can provide less leakage rate, lower failure rate, and lower leakage rate, so as to solve the problems in the background art.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] An intelligent flexible sealing double-layer unloading airlock valve is characterized by: a cylindrical body, with a first mounting groove and a second mounting groove on the outer side of the cylindrical body; an upper valve nozzle and a lower nozzle on the inner side of the cylindrical body, both of which are connected to a sealing structure; a first transmission structure on the inner side of the first mounting groove, which cooperates with the sealing structure of the upper valve nozzle; a second transmission structure connected to the second mounting groove, which cooperates with the sealing structure of the lower nozzle; a maintenance structure connected to the upper valve nozzle; a ash hopper connected to the flange of the maintenance structure; a material storage hopper on the inner side of the cylindrical body; and a unloading chute connected to the lower end of the cylindrical body.

[0007] Preferably, the maintenance structure includes a manual slide gate valve, which is connected to a handle.

[0008] Preferably, the first transmission structure includes a first motor, the first motor is connected to a first motor reducer, the first motor reducer is connected to a first rotating shaft, the first rotating shaft is connected to a first rotating arm, the first rotating arm is connected to an upper valve plate, and the upper valve plate is a tapered plate.

[0009] Preferably, the sealing structure includes a movable retaining ring, a fixed ring connected to the outside of the movable retaining ring, both the movable retaining ring and the fixed ring being connected to the upper valve nozzle, a flexible sealing ring connected to the outside of the fixed ring, and the movable retaining ring, the fixed ring and the flexible sealing ring being fixed to the upper valve nozzle by bolts, and the movable retaining ring having a movable hole on its inner side.

[0010] Preferably, the second transmission structure includes a second motor, the second motor is connected to a second motor reducer, the second motor reducer is connected to a second rotating shaft, the second rotating shaft is connected to a second rotating arm, and the second rotating arm is connected to a lower valve plate, wherein the lower valve plate is a flat plate structure.

[0011] Preferably, a level gauge is connected to the inside of the storage silo.

[0012] Preferably, a control display is connected to the outside of the cylinder.

[0013] Compared with the prior art, this utility model has the following advantages:

[0014] 1. An intelligent flexible sealing double-layer unloading airlock valve is installed at the lower discharge port of the electrostatic precipitator at the sintering machine head and the ash silo in the main flue. Its function is to ensure that the internal cavity of the ash silo remains isolated from the atmosphere during discharge, thus preventing air leakage. It adopts a double-layer valve plate structure, with upper and lower electric flap valves inside the valve body. During operation, the upper and lower electric flap valves open alternately, allowing material to pass sequentially through the upper and lower flap valve plates from the ash silo, finally discharging the material. Throughout the entire discharge process, one valve plate remains closed, preventing air leakage and ensuring no impact on the negative pressure value inside the main flue. Therefore, this invention offers reliable sealing, less material trapping, reduced material erosion and wear on the valve plate, and significantly improved valve plate service life.

[0015] 2. Each of the upper and lower tilting valve plates has its own drive device, ensuring undisturbed operation;

[0016] 3. Without impact loads such as heavy hammers, the lifespan of the double-layer ash discharge valve is increased by at least 2 times;

[0017] 4. The sealing surfaces of the valve plate and valve nozzle are flexible seals, so when the valve plate is closed, the sealing elements on the valve nozzle have a certain elastic deformation, which further improves the sealing effect of the valve and greatly enhances its sealing performance.

[0018] 5. The material in the intermediate storage bin does not completely fill its cavity space, which does not affect the normal closing of the valve plate, and there is no situation where the valve plate cannot be closed due to material blockage; Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a frontal sectional view of the present invention.

[0021] Figure 3 A top sectional view of the manual slide gate valve provided by this utility model;

[0022] Figure 4 A top view of the unloading chute provided by this utility model;

[0023] Figure 5 for Figure 2 A magnified view of a section at point A in the middle;

[0024] The reference numerals in the accompanying drawings include: ash hopper 1, cylinder 2, first motor 3, first motor reducer 4, first rotating shaft 5, unloading chute 6, first mounting groove 7, level gauge 8, first rotating arm 9, manual slide valve 10, handle 11, storage hopper 12, upper valve nozzle 13, discharge nozzle 14, lower valve plate 15, upper valve plate 16, control display 17, second motor 18, second motor reducer 19, movable retaining ring 20, movable hole 21, fixed ring 22, flexible sealing ring 23, second mounting groove 24, second rotating shaft 25, bolt 26, second rotating arm 27. Detailed Implementation

[0025] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0027] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0028] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example 1

[0029] like Figure 1-5The intelligent flexible sealing double-layer unloading airlock valve shown includes a cylinder 2, an upper valve nozzle 13 on the inner side of the cylinder 2, a storage bin 12 on the inner side of the cylinder 2, the upper valve nozzle 13 located inside the storage bin 12, a manual slide valve 10 connected to the top of the upper valve nozzle 13, a handle 11 connected to the manual slide valve 10, and an ash bin 1 connected to the upper flange of the manual slide valve 10. The manual slide valve is existing technology and will not be described in detail here. Bolts 26 are connected to both sides of the upper valve nozzle 13. Between the bolts 26 and the upper valve nozzle 13, a flexible sealing ring 23, a fixing ring 22 and a movable retaining ring 20 are provided from the outside to the inside. The movable retaining ring 20 has a movable hole 21 on its inner side, allowing the movable retaining ring 20 to move up and down. A first mounting groove 7 is provided at the upper outer side of the cylinder 2. A first motor 3 and a first motor reducer 4 are provided inside the first mounting groove 7. The structure includes a first motor reducer connected to a first rotating shaft 5. The first rotating shaft 5 passes through the cylinder 2 and enters the inner side of the storage hopper 12, where it is connected to a first rotating arm 9. The first rotating arm 9 is connected to an upper valve plate 16, which has a conical structure. When the first motor 3 is started, the first motor drives the first rotating shaft 5 to rotate through the first motor reducer. The first rotating shaft 5 drives the first rotating arm 9 to rotate, and the first rotating arm 9 drives the upper valve plate 16 to rotate. This causes the upper valve plate 16 to press against the movable baffle plate and the flexible sealing ring 23 on both sides. When the upper valve plate 16 is closed, the movable baffle plate installed on the upper valve nozzle 13 first contacts the upper valve plate 16. The baffle plate can effectively stop the material flow. Since the baffle plate can move up and down, the valve plate can continue to close. Next, the sealing surface of the valve plate contacts the flexible sealing ring 23, and the valve plate finally presses the sealing ring tightly. After the upper valve is completely sealed and locked, the upper valve plate 16 stops.

[0030] Furthermore, a feeding nozzle 14 is provided at the lower inner end of the cylinder 2. A flexible sealing ring 23, a fixing ring 22, and a movable baffle ring 20 communicating with the upper valve nozzle 13 are provided on both sides of the feeding nozzle 14. A second mounting groove 24 is provided at the lower outer end of the cylinder 2. A second motor 18 and a second motor reducer 19 are provided inside the second mounting groove 24. The second motor reducer 19 is connected to a second rotating shaft 25. The second rotating shaft 25 passes through the cylinder 2, enters the storage bin 12, and is connected to a second rotating arm 27. The second rotating arm 27 is connected to a lower valve plate 15. The lower valve plate 15 is a flat plate structure, and its principle is the same as that of the upper valve plate 16.

[0031] Furthermore, the flexible sealing ring 23 is a non-metallic soft seal, which can be made of polyurethane wear-resistant material and has a concentric variable diameter pipe structure. The first motor reducer 4 and the second motor reducer 19 can be worm gear reducers. The opening angle of the upper and lower valve plates 15 is >90°. Since the valve plates are far away from the discharge port, the valve plates are prevented from being washed away by the discharge material, thus reducing their service life. The discharge chute 6 is connected to the flange of the cylinder 2, so that the discharge chute 6 can be disassembled.

[0032] Furthermore, a control display 17 is installed on the outside of the valve body to set the unloading time, unloading interval, unloading speed, and record equipment operating parameters, as well as send and receive operating instructions. The feeding time, discharge time, and cycle time of each ash discharge valve are adjusted according to actual production conditions. After starting the monitoring program, the parameter setting interface is opened, displaying the feeding time, discharge time, and cycle time of each ash discharge valve.

[0033] Furthermore, a level gauge 8 is installed inside the storage bin 12 to control the material level in the storage bin 12, preventing the intermediate storage bin 12 from being filled, jamming, or preventing the valve plate from moving.

[0034] Working principle:

[0035] When the ash discharge valve is in operation, the first motor 3 is started, causing the upper valve plate 16 to rotate, thereby opening the upper valve nozzle 13 and closing the discharge nozzle 14 to begin the feeding process. When the material in the storage hopper 12 reaches the set height, the upper valve nozzle 13 is closed and the discharge nozzle 14 is opened to begin unloading. After the unloading reaches the set time, the discharge nozzle 14 is closed, and one unloading cycle is completed. Then the upper valve nozzle 13 is opened again to enter the next ash discharge cycle.

[0036] Since the flowing material may accumulate between the baffle plate and the upper valve plate 16, the movable baffle ring 20 on the upper valve nozzle 13 contacts the material and valve plate before the sealing ring, thus blocking the material from continuing to flow. Because the movable baffle ring 20 can move up and down, the upper valve plate 16 can continue to close until it presses the flexible sealing ring 23 tightly, resulting in a completely sealed upper valve nozzle 13. The flexible sealing ring 23 is installed on the outside of the upper valve nozzle 13. Simultaneously, the valve plate has a conical structure with a cone angle that is always greater than the material accumulation angle, resulting in less residue when the upper valve plate 16 finally contacts and seals with the flexible sealing ring 23. This significantly reduces the material trapping problem between the upper valve plate 16 and the flexible sealing ring 23, leading to less wear on the flexible sealing ring 23 and the upper valve plate 16. The seal is tight and leak-proof, ensuring reliable sealing and greatly reducing material wear on the sealing surface.

[0037] The above are merely embodiments of this utility model. The circuits, electronic components, and modules involved are all prior art, fully achievable by those skilled in the art, and require no further explanation. The content protected by this application does not involve improvements to the software or methods. Commonly known structures and characteristics in the solution are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field to which this utility model pertains prior to the application date or priority date, are able to access all existing technologies in that field, and possess the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, under the guidance of this application, improve and implement this solution in conjunction with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. An intelligent flexible sealing double-layer unloading airlock valve, characterized in that: The device includes a cylinder (2), on the outside of which are provided a first mounting groove (7) and a second mounting groove (24). On the inside of the cylinder (2) are provided an upper valve nozzle (13) and a discharge nozzle (14). Both the upper valve nozzle (13) and the discharge nozzle (14) are connected to a sealing structure. On the inside of the first mounting groove (7) are provided a first transmission structure. The first transmission structure cooperates with the sealing structure of the upper valve nozzle (13). On the second mounting groove (24) are connected to a second transmission structure. The second transmission structure cooperates with the sealing structure of the discharge nozzle (14). The upper valve nozzle (13) is connected to a maintenance structure. The flange of the maintenance structure is connected to an ash hopper (1). On the inside of the cylinder (2) are provided a storage hopper (12). The lower end of the cylinder (2) is connected to a discharge chute (6).

2. The intelligent flexible sealing double-layer unloading airlock valve as described in claim 1, characterized in that: The maintenance structure includes a manual slide gate valve (10) with a handle (11) connected to it.

3. The intelligent flexible sealing double-layer unloading airlock valve as described in claim 1, characterized in that: The first transmission structure includes a first motor (3), the first motor (3) is connected to a first motor reducer (4), the first motor reducer (4) is connected to a first rotating shaft (5), the first rotating shaft (5) is connected to a first rotating arm (9), the first rotating arm (9) is connected to an upper valve plate (16), and the upper valve plate (16) is a conical plate.

4. The intelligent flexible sealing double-layer unloading airlock valve as described in claim 1, characterized in that: The sealing structure includes a movable baffle ring (20), a fixed ring (22) is connected to the outside of the movable baffle ring (20), both the movable baffle ring (20) and the fixed ring (22) are connected to the upper valve nozzle (13), a flexible sealing ring (23) is connected to the outside of the fixed ring (22), the movable baffle ring (20), the fixed ring (22) and the flexible sealing ring (23) are all fixed to the upper valve nozzle (13) by bolts (26), and the movable baffle ring (20) has a movable hole (21) on the inner side.

5. The intelligent flexible sealing double-layer unloading airlock valve as described in claim 1, characterized in that: The second transmission structure includes a second motor (18), the second motor (18) is connected to a second motor reducer (19), the second motor reducer (19) is connected to a second rotating shaft (25), the second rotating shaft (25) is connected to a second rotating arm (27), the second rotating arm (27) is connected to a lower valve plate (15), and the lower valve plate (15) is a flat plate structure.

6. The intelligent flexible sealing double-layer unloading airlock valve as described in claim 1, characterized in that: A level gauge (8) is connected to the inside of the storage bin (12).

7. The intelligent flexible sealing double-layer unloading airlock valve as described in claim 1, characterized in that: A control display (17) is connected to the outside of the cylinder (2).

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