High-sealing-performance double-layer inserting plate type cinder valve

Abstract

The utility model relates to a high-sealing-performance double-layer inserting plate type cinder valve which comprises a barrel body, an upper inserting plate valve connected with the barrel body, an upper connecting pipe connected with the upper inserting plate valve, a lower inserting plate valve connected with the barrel body, a lower connecting pipe connected with the lower inserting plate valve, a first electric-hydraulic push rod and a second electric-hydraulic push rod. The upper gate valve comprises two layers of first supporting plates, a first sealing plate and a first valve plate, the first sealing plate and the first valve plate are arranged between the two layers of first supporting plates, first material passing holes are formed in the first supporting plates, and the first electric-hydraulic push rod is connected with the first valve plate. The lower gate valve comprises a second supporting plate, a third supporting plate, a second sealing plate and a second valve plate, the second sealing plate and the second valve plate are arranged between the second supporting plate and the third supporting plate, the second electric-hydraulic push rod is connected with the second valve plate, a second material passing hole is formed in the second supporting plate, a third material passing hole and a discharging hole are formed in the third supporting plate, and the discharging hole is communicated with the third material passing hole. The sealing performance of the double-layer inserting plate type cinder valve is improved, the service life of the double-layer inserting plate type cinder valve is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] The present application relates to the field of ash discharge valve technology, and in particular to a high-sealing double-layer plug-in plate ash discharge valve. Background Art

[0002] Double-layer plug-in ash discharge valve is a device used for remote control or on-site control of ash discharge process in industrial production process. It has the characteristics of compact structure, low leakage rate, impact resistance, wear resistance, good safety performance and easy maintenance. This equipment is mainly used in industrial fields such as metallurgy, mining, building materials, electric power and chemical industry to discharge materials from the system, prevent gas from entering the system from the outside or gas leakage in the system, and ensure the continuous operation of the system.

[0003] The double-layer plug-in ash unloading valve is usually composed of a cylinder, a valve and a control device. An upper plug-in valve and a lower plug-in valve are arranged between the cylinders, and the opening or closing of the valve is controlled by an electro-hydraulic push rod, so that the upper plug-in valve and the lower plug-in valve work alternately. However, the existing double-layer plug-in ash unloading valve is easily affected by high temperature environment and high temperature materials and deformed or blocked, resulting in a decrease in the sealing performance of the double-layer plug-in ash unloading valve, thereby reducing the service life of the double-layer plug-in ash unloading valve and increasing maintenance costs.

[0004] With respect to the above-mentioned related technologies, the inventors believe that the sealing performance of the existing double-layer plug-in plate ash unloading valve is easily affected by external factors and thus decreases, thereby reducing the service life of the double-layer plug-in plate ash unloading valve and increasing maintenance costs. Utility Model Content

[0005] In order to solve the above technical problems, the present application provides a high-sealing double-layer plug-in ash discharge valve.

[0006] The present application provides a high-sealing double-layer plug-in ash discharge valve, which adopts the following technical solution:

[0007] A high-sealing double-layer plug-in plate type ash discharge valve comprises a cylinder, an upper plug-in plate valve connected to the cylinder, an upper pipe connected to the upper plug-in plate valve, a lower plug-in plate valve connected to the cylinder, a lower pipe connected to the lower plug-in plate valve, a first electro-hydraulic push rod, and a second electro-hydraulic push rod; the upper plug-in plate valve comprises two layers of first support plates, a first sealing plate and a first valve plate arranged between the two layers of the first support plates, the first support plate is provided with a first material passing hole, the first electro-hydraulic push rod is connected to the first valve plate, the first valve plate is slidably connected to the first sealing plate, the lower plug-in plate valve comprises a second support plate, a third support plate, a second sealing plate and a second valve plate arranged between the second support plate and the third support plate, the second electro-hydraulic push rod is connected to the second valve plate, the second valve plate is slidably connected to the second sealing plate, the second support plate is provided with a second material passing hole, the third support plate is provided with a third material passing hole and a discharge hole, the discharge hole is arranged at one end of the third support plate away from the second electro-hydraulic push rod, and the discharge hole is connected to the third material passing hole.

[0008] By adopting the above technical scheme, the upper gate valve is a normally open valve, and the lower gate valve is a normally closed valve. The upper gate valve improves the operating stability of the first valve plate through the two layers of the first support plates. The lower gate valve is provided with a discharge hole, so that the second valve plate pushes the material between the second support plate and the third support plate to be discharged from the lower gate valve through the discharge hole during the closing process, thereby reducing the phenomenon that the material accumulates in the lower gate valve and causes the sealing performance of the lower gate valve to decrease, thereby improving the sealing performance of the lower gate valve.

[0009] Preferably, the third support plate is arranged on a side of the lower plug valve close to the lower connecting pipe, and the second support plate is arranged on a side of the lower plug valve close to the cylinder.

[0010] By adopting the above technical solution, the second support plate blocks the material close to the side wall of the cylinder, thereby reducing the accumulation of material at the edge of the lower plug valve, which in turn affects the sealing performance of the second valve plate when it is closed. The discharge hole on the third support plate is connected to the lower connecting pipe, which facilitates the second valve plate to push the material accumulated in the lower plug valve into the lower connecting pipe through the discharge hole, thereby improving the sealing performance of the second valve plate when it is closed.

[0011] Preferably, the first material passage hole is arranged in the middle of the first support plate, and the diameter of the first material passage hole is smaller than the width of the first valve plate; the second material passage hole is arranged in the middle of the second support plate, and the diameter of the second material passage hole is smaller than the width of the second valve plate.

[0012] By adopting the above technical solution, the position and size of the first material passage hole reduce the phenomenon of material accumulation in the upper plug valve, thereby improving the sealing performance of the upper plug valve when it is closed. The position and size of the second material passage hole reduce the phenomenon of material accumulation in the lower plug valve, thereby improving the sealing performance of the lower plug valve when it is closed.

[0013] Preferably, the diameter of the third material passage hole is greater than the diameter of the second material passage hole.

[0014] By adopting the above technical solution, the diameter of the third material through hole is larger than the diameter of the second material through hole, which reduces the phenomenon of the material falling onto the third support plate through the second material through hole during the falling process, thereby reducing the problem of reduced sealing of the lower plug valve due to material accumulation, thereby improving the sealing of the lower plug valve.

[0015] Preferably, a limit block is provided on a side of the first valve plate close to the first electro-hydraulic push rod.

[0016] By adopting the above technical solution, the limit block limits the position of the first valve plate, and whether the first valve plate is completely closed can be judged according to whether the limit block abuts against the first sealing plate.

[0017] Preferably, a sealing gasket is provided on a side of the first support plate away from the first valve plate.

[0018] Preferably, the sealing gasket is an asbestos gasket.

[0019] By adopting the above technical solution, the sealing gasket made of asbestos material further increases the sealing performance of the upper plug valve.

[0020] Preferably, a connecting hole is provided on the first valve plate, a connecting block is provided at the telescopic end of the first electro-hydraulic push rod, a clamping groove and a mounting hole are provided on the connecting block, the mounting hole is connected to the clamping groove, and bolts are provided in the mounting hole and the connecting hole.

[0021] By adopting the above technical solution, the first electro-hydraulic push rod is detachably connected to the first valve plate through the connecting block, thereby facilitating the maintenance and replacement of the first electro-hydraulic push rod and the first valve plate, thereby reducing the maintenance cost of the upper plug valve.

[0022] Preferably, a first mounting plate is provided on the cylinder, a second mounting plate is provided on the first electro-hydraulic push rod, and the first mounting plate and the second mounting plate are connected by bolts.

[0023] By adopting the above technical solution, the first electro-hydraulic push rod is detachably connected to the first mounting plate on the cylinder through the second mounting plate, and the position of the first electro-hydraulic push rod is limited, thereby reducing the problem of upper plug valve failure caused by position change of the first electro-hydraulic push rod, thereby improving the operating stability of the upper plug valve.

[0024] Preferably, a reinforcement plate is provided on the first mounting plate, and the reinforcement plate is connected to the cylinder.

[0025] By adopting the above technical solution, the provision of the reinforcement plate improves the connection stability between the first mounting plate and the cylinder, thereby improving the connection stability between the first electro-hydraulic push rod and the cylinder, and further improving the operating stability of the upper plug valve.

[0026] In summary, this application has the following beneficial technical effects:

[0027] 1. The upper gate valve improves the operating stability of the upper gate valve through two layers of first support plates, and reduces the phenomenon of material accumulation in the upper gate valve, thereby improving the sealing performance of the upper gate valve when it is closed;

[0028] 2. The lower gate valve is provided with a discharge hole connected to the lower connecting pipe, which reduces the accumulation of materials in the lower gate valve, thereby improving the sealing performance of the lower gate valve when it is closed;

[0029] 3. The first electro-hydraulic push rod is detachably connected to the first valve plate and the cylinder, respectively, which improves the efficiency of maintenance and replacement of the first electro-hydraulic push rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of a high-sealing double-layer plug-in ash discharge valve;

[0031] Figure 2 It is a partial structural schematic diagram of the upper plug valve and the first electro-hydraulic push rod;

[0032] Figure 3 It is a partial structural schematic diagram of the lower plug valve and the second electro-hydraulic push rod;

[0033] Figure 4 It is a structural schematic diagram of a high-sealing double-layer plug-in ash discharge valve;

[0034] Figure 5 It is a partial cross-sectional structural schematic diagram of the first valve plate and the first electro-hydraulic push rod.

[0035] Explanation of the accompanying drawings: 1. Cylinder; 11. First mounting plate; 12. Reinforcement plate; 2. Upper plug valve; 21. First support plate; 211. First material passage hole; 22. First sealing plate; 23. First valve plate; 231. Limit block; 232. Connecting hole; 3. Upper connecting pipe; 4. Lower plug valve; 41. Second support plate; 411. Second material passage hole; 42. Third support plate; 421. Third material passage hole; 422. Discharging hole; 43. Second sealing plate; 44. Second valve plate; 5. Lower connecting pipe; 6. First electro-hydraulic push rod; 61. Connecting block; 611. Clamping groove; 612. Mounting hole; 62. Second mounting plate; 7. Second electro-hydraulic push rod; 8. Sealing pad. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-5 This application is described in further detail.

[0037] The embodiment of the present application discloses a high-sealing double-layer plug-in plate type ash discharge valve.

[0038] Reference Figure 1 , Figure 2 and Figure 3 A high-sealing double-layer plug-in plate ash unloading valve includes a cylinder 1, an upper plug-in plate valve 2 connected to the cylinder 1, an upper connecting pipe 3 connected to the upper plug-in plate valve 2, a lower plug-in plate valve 4 connected to the cylinder 1, a lower connecting pipe 5 connected to the lower plug-in plate valve 4, a first electro-hydraulic push rod 6, and a second electro-hydraulic push rod 7.

[0039] The upper plug valve 2 includes two layers of first support plates 21, a first sealing plate 22 and a first valve plate 23 arranged between the two layers of first support plates 21. The first support plate 21 is provided with a first material passage hole 211. The first electro-hydraulic push rod 6 is connected to the first valve plate 23, and the first valve plate 23 is slidably connected to the first sealing plate 22. The first support plate 21, the first sealing plate 22, the cylinder 1 and the upper pipe 3 are all connected by bolts. The first material passage hole 211 is arranged in the middle of the first support plate 21, and the diameter of the first material passage hole 211 is smaller than the width of the first valve plate 23.

[0040] The lower plug valve 4 includes a second support plate 41, a third support plate 42, a second sealing plate 43 and a second valve plate 44 arranged between the second support plate 41 and the third support plate 42, the second electro-hydraulic push rod 7 is connected to the second valve plate 44, the second valve plate 44 is slidably connected to the second sealing plate 43, the second support plate 41 is provided with a second material through hole 411, the third support plate 42 is provided with a third material through hole 421 and a discharge hole 422, the discharge hole 422 is arranged at one end of the third support plate 42 away from the second electro-hydraulic push rod 7, and the discharge hole 422 is connected to the third material through hole 421. The second support plate 41, the third support plate 42, the second sealing plate 43, the cylinder 1 and the lower pipe 5 are all connected by bolts.

[0041] The third support plate 42 is disposed on a side of the lower gate valve 4 close to the lower connecting pipe 5 , and the second support plate 41 is disposed on a side of the lower gate valve 4 close to the cylinder 1 .

[0042] The second material passage hole 411 is disposed in the middle of the second support plate 41 , and the diameter of the second material passage hole 411 is smaller than the width of the second valve plate 44 . The diameter of the third material passage hole 421 is larger than the diameter of the second material passage hole 411 .

[0043] A sealing gasket 8 is provided on one side of the first support plate 21 away from the first valve plate 23 , and the sealing gasket 8 is an asbestos gasket.

[0044] A limit block 231 is fixedly disposed on one side of the first valve plate 23 close to the first electro-hydraulic push rod 6. The second valve plate 44 has the same structure as the first valve plate 23.

[0045] Reference Figure 4 and Figure 5 A connecting hole 232 is provided on the first valve plate 23, and a connecting block 61 is fixedly provided at the telescopic end of the first electro-hydraulic push rod 6. A clamping groove 611 and a mounting hole 612 are provided on the connecting block 61. The mounting hole 612 is connected to the clamping groove 611, and bolts are provided in the mounting hole 612 and the connecting hole 232.

[0046] A first mounting plate 11 is welded to the cylinder 1, and a second mounting plate 62 is welded to the first electro-hydraulic push rod 6. The first mounting plate 11 and the second mounting plate 62 are connected by bolts. A reinforcing plate 12 is welded to the first mounting plate 11, and the reinforcing plate 12 is connected to the cylinder 1 by welding. The second electro-hydraulic push rod 7 has the same structure as the first electro-hydraulic push rod 6.

[0047] The implementation principle of a high-sealing double-layer plug-in plate ash discharge valve in the embodiment of the present application is as follows: the upper plug-in plate valve 2 is a normally open valve, which remains in an open state, and the material falls into the cylinder 1 through the first material passage hole 211 on the first support plate 21. The lower plug-in plate valve 4 is a normally closed valve. When unloading is required, the lower plug-in plate valve 4 is opened, the upper plug-in plate valve 2 is closed, and the second electro-hydraulic push rod 7 drives the second valve plate 44 to open, and the material falls into the lower pipe 5 through the second material passage hole 411 and the third material passage hole 421, thereby completing the unloading. When the lower plug-in plate valve 4 is closed, the second electro-hydraulic push rod 7 drives the second valve plate 44 to slide, and the second valve plate 44 pushes the material accumulated in the lower plug-in plate valve 4 to fall into the lower pipe 5 through the discharge hole 422, thereby reducing the problem of reduced sealing when the second valve plate 44 is closed due to the accumulation of materials in the lower plug-in plate valve 4.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high-sealing double-layer plug-in ash discharge valve, characterized in that: The invention comprises a cylinder (1), an upper plug valve (2) connected to the cylinder (1), an upper pipe (3) connected to the upper plug valve (2), a lower plug valve (4) connected to the cylinder (1), a lower pipe (5) connected to the lower plug valve (4), a first electro-hydraulic push rod (6), and a second electro-hydraulic push rod (7); the upper plug valve (2) comprises two layers of first support plates (21), a first sealing plate (22) arranged between the two layers of the first support plates (21), and a first valve plate (23); the first support plate (21) is provided with a first material passing hole (211); the first electro-hydraulic push rod (6) is connected to the first valve plate (23); the first valve plate (23) is slidably connected to the first sealing plate (22); the lower plug valve (2) 4) comprises a second support plate (41), a third support plate (42), a second sealing plate (43) and a second valve plate (44) arranged between the second support plate (41) and the third support plate (42), the second electro-hydraulic push rod (7) is connected to the second valve plate (44), the second valve plate (44) is slidably connected to the second sealing plate (43), the second support plate (41) is provided with a second material through hole (411), the third support plate (42) is provided with a third material through hole (421) and a discharge hole (422), the discharge hole (422) is arranged at one end of the third support plate (42) away from the second electro-hydraulic push rod (7), and the discharge hole (422) is connected to the third material through hole (421).

2. The high-sealing double-layer plug-in ash discharge valve according to claim 1 is characterized in that: The third support plate (42) is arranged on a side of the lower plug valve (4) close to the lower connecting pipe (5), and the second support plate (41) is arranged on a side of the lower plug valve (4) close to the cylinder (1).

3. The high-sealing double-layer plug-in plate ash discharge valve according to claim 2 is characterized in that: The first material passage hole (211) is arranged in the middle of the first support plate (21), and the diameter of the first material passage hole (211) is smaller than the width of the first valve plate (23); the second material passage hole (411) is arranged in the middle of the second support plate (41), and the diameter of the second material passage hole (411) is smaller than the width of the second valve plate (44).

4. The high-sealing double-layer plug-in plate ash discharge valve according to claim 3 is characterized in that: The diameter of the third material passing hole (421) is greater than the diameter of the second material passing hole (411).

5. The high-sealing double-layer plug-in ash discharge valve according to claim 4 is characterized in that: A limiting block (231) is provided on a side of the first valve plate (23) close to the first electro-hydraulic push rod (6).

6. The high-sealing double-layer plug-in plate ash discharge valve according to claim 5 is characterized in that: A sealing gasket (8) is provided on a side of the first support plate (21) away from the first valve plate (23).

7. The high-sealing double-layer plug-in plate ash discharge valve according to claim 6 is characterized in that: The sealing gasket (8) is an asbestos gasket.

8. The high-sealing double-layer plug-in plate ash discharge valve according to claim 7 is characterized in that: The first valve plate (23) is provided with a connecting hole (232); the telescopic end of the first electro-hydraulic push rod (6) is provided with a connecting block (61); the connecting block (61) is provided with a clamping groove (611) and a mounting hole (612); the mounting hole (612) is communicated with the clamping groove (611); and bolts are provided in the mounting hole (612) and the connecting hole (232).

9. The high-sealing double-layer plug-in plate ash discharge valve according to claim 8 is characterized in that: A first mounting plate (11) is provided on the cylinder (1), and a second mounting plate (62) is provided on the first electro-hydraulic push rod (6); the first mounting plate (11) and the second mounting plate (62) are connected by bolts.

10. The high-sealing double-layer plug-in plate ash discharge valve according to claim 9, characterized in that: A reinforcing plate (12) is provided on the first mounting plate (11), and the reinforcing plate (12) is connected to the cylinder (1).

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