Ash valve poking mechanism

Abstract

This invention relates to ash valves and provides an ash valve slag-clearing mechanism, comprising a vertically arranged slag-collecting pipe, a slag-clearing rod located at the upper end of the slag-collecting pipe, a slag-discharging pipe located on the side of the slag-collecting pipe, and a valve located at the lower end of the slag-collecting pipe, including a cover plate covering the upper wall of the slag-collecting pipe, a sleeve fitted over the outer wall of the slag-clearing rod, a hydraulic pipe fitted over the outer wall of the sleeve, a pair of first sealing rings, a second sealing ring, a first liquid guide pipe communicating with the upper side wall of the hydraulic pipe, a second liquid guide pipe communicating with the lower side wall of the hydraulic pipe, and a first motor connected to the upper end of the slag-clearing rod; the sleeve is rotatably connected to the slag-clearing rod, the second sealing ring is located between the pair of first sealing rings, and the first and second liquid guide pipes are respectively located on both sides of the second sealing ring; both the first and second liquid guide pipes are connected to a hydraulic device. The ash valve slag-clearing mechanism of this invention can effectively remove impurities clogging the inside of the ash valve.

Description

Technical Field

[0001] This invention relates to the technical field of ash valves, and more specifically, to an ash valve slag-clearing mechanism. Background Technology

[0002] A boiler is an energy conversion device. The energy input to a boiler includes the chemical energy of fuel and electrical energy. The boiler outputs steam, high-temperature water, or organic heat carriers with a certain amount of thermal energy.

[0003] Circulating fluidized bed boilers are a type of boiler that utilizes the most advanced clean coal combustion technology in industrial applications. Coal is burned in the boiler to generate energy. However, coal quality varies; some low-quality coal contains a large amount of impurities, which accumulate at the ash discharge port after combustion, making them difficult to remove and easily clogging the ash valve. When clogging occurs, the ash discharge port needs to be cleaned promptly; otherwise, cumulative blockage will make subsequent cleaning more difficult. The most common method of cleaning is manual cleaning, but because the ash discharge port remains at a high temperature, manual cleaning is inefficient and difficult to achieve complete removal.

[0004] Therefore, it is necessary to design a slag-clearing mechanism that can efficiently clear blockages in the boiler slag discharge port. Summary of the Invention

[0005] The purpose of this invention is to provide a slag removal mechanism for an ash valve at a slag discharge port, which can effectively remove impurities and blockages that clog the inside of the ash valve and the slag discharge port.

[0006] The embodiments of the present invention are achieved through the following technical solutions: The ash valve slag-clearing mechanism of the present invention includes a vertically arranged slag-collecting pipe, a slag-clearing rod disposed at the upper end of the slag-collecting pipe, a slag-discharging pipe disposed on the side of the slag-collecting pipe, and a valve disposed at the lower end of the slag-collecting pipe, including a cover plate covering the upper end wall of the slag-collecting pipe, a sleeve sleeved on the outer wall of the slag-clearing rod, a hydraulic pipe sleeved on the outer wall of the sleeve, a pair of first sealing rings respectively fixed at both ends of the inner wall of the hydraulic pipe, a second sealing ring fixed on the outer wall of the sleeve, a first liquid guide pipe communicating with the upper end side wall of the hydraulic pipe, a second liquid guide pipe communicating with the lower end side wall of the hydraulic pipe, and a first motor connected to the upper end of the slag-clearing rod; the sleeve is rotatably connected to the slag-clearing rod, the second sealing ring is disposed between the pair of first sealing rings, and the first liquid guide pipe and the second liquid guide pipe are respectively disposed on both sides of the second sealing ring; both the first liquid guide pipe and the second liquid guide pipe are connected to a hydraulic device.

[0007] Furthermore, the outer wall of the slag-pumping rod is provided with a limiting ring, and the inner wall of the sleeve is provided with an annular limiting groove, with the limiting ring rotatably disposed in the limiting groove.

[0008] Furthermore, a spring is provided at the lower end of the slag-shoveling rod.

[0009] Furthermore, the lower end of the spring is provided with a hemispherical slag-removing block.

[0010] Furthermore, the slag-pumping rod, the sleeve, and the hydraulic pipe are all inclined; the outer wall of the hydraulic pipe is provided with a fixing plate, the fixing plate is horizontally arranged and rotatably connected to the cover plate; it also includes a driving device for driving the fixing plate to rotate.

[0011] Furthermore, the driving device includes a second motor, a driving gear disposed on the output shaft of the second motor, and a driven gear disposed on the lower side of the outer wall of the fixed disk; the driving gear meshes with the driven gear.

[0012] Furthermore, the upper side of the outer wall of the fixed plate is provided with an annular groove, and the upper side of the cover plate is provided with multiple clamping plates; the clamping plates are slidably disposed in the groove.

[0013] Furthermore, the upper sidewall of the hydraulic pipe is provided with a first fixing plate, and the sidewall of the first motor is provided with a second fixing plate; the first fixing plate and the second fixing plate are connected by multiple telescopic rods.

[0014] The technical solution of this invention has at least the following advantages and beneficial effects: The ash valve slag-clearing mechanism of this invention discharges waste slag into a slag-collecting pipe through a slag discharge pipe and collects it. After a certain period, the valve is opened to discharge the ash slag. When the ash slag accumulates in the slag-collecting pipe and is difficult to completely discharge, a slag-clearing rod can be used to push the ash slag out. When operating the slag-clearing rod, high-pressure hydraulic oil can be introduced into the first guide pipe through a hydraulic device. The hydraulic oil pushes the second sealing ring downwards (introducing hydraulic oil into the second guide pipe pushes the second sealing ring upwards), thereby pushing the sleeve and the slag-clearing rod downwards. Simultaneously, the first motor drives the slag-clearing rod to rotate, so that the slag-clearing rod pushes out all the ash slag accumulated in the slag-collecting pipe during its up-and-down reciprocating movement and rotation. Then, the valve can be closed again. In this way, by rotating the slag-clearing rod in and out, not only can the ash slag accumulated in the slag-collecting pipe be effectively cleared, preventing blockage, but the inside of the slag-collecting pipe can also be cleaned, preventing the formation of an ash slag layer on the inner wall of the slag-collecting pipe due to long-term use. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1This is a schematic diagram of the ash valve slag-clearing mechanism provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the internal structure of the ash valve slag-clearing mechanism provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the slag-pumping rod provided in an embodiment of the present invention; Figure 4 for Figure 2 Enlarged view of part A in the middle.

[0017] Icons: 11-Slag collection pipe, 12-Slag discharge pipe, 13-Valve, 14-Cover plate, 15-Clamping plate, 21-Slag-poke rod, 22-Sleeve, 23-Hydraulic pipe, 24-Spring, 25-Slag-poke block, 26-First liquid guide pipe, 27-Second liquid guide pipe, 28-First sealing ring, 29-Second sealing ring, 210-Limiting ring, 211-Fixing disc, 212-Driven gear, 213-Slot, 214-Second motor, 215-First motor, 216-Second fixing plate, 217-First fixing plate, 218-Telescopic rod. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] In the description of this invention, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0022] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0023] Example The following description, in conjunction with specific embodiments, further illustrates the point, as shown in the appendix. Figure 1 - Appendix Figure 4As shown, the ash valve slag-clearing mechanism of this embodiment includes a vertically arranged slag collection pipe 11, a slag-clearing rod 21 located at the upper end of the slag collection pipe 11, a slag discharge pipe 12 located on the side of the slag collection pipe 11, and a valve 13 located at the lower end of the slag collection pipe 11. The valve 13 includes a cover plate 14 covering the upper wall of the slag collection pipe 11, a sleeve 22 fitted onto the outer wall of the slag-clearing rod 21, a hydraulic pipe 23 fitted onto the outer wall of the sleeve 22, a pair of first sealing rings 28 respectively fixed at both ends of the inner wall of the hydraulic pipe 23, and a valve fixed to the sleeve 22. The outer wall has a second sealing ring 29, a first liquid guide pipe 26 connected to the upper side wall of the hydraulic pipe 23, a second liquid guide pipe 27 connected to the lower side wall of the hydraulic pipe 23, and a first motor 215 connected to the upper end of the slag-poke rod 21; the sleeve 22 is rotatably connected to the slag-poke rod 21, the second sealing ring 29 is located between a pair of first sealing rings 28, and the first liquid guide pipe 26 and the second liquid guide pipe 27 are respectively located on both sides of the second sealing ring 29; both the first liquid guide pipe 26 and the second liquid guide pipe 27 are connected to a hydraulic device. Specifically, during use, the waste residue is discharged into the slag collection pipe 11 through the slag discharge pipe 12 and collected. After a certain period of time, the valve 13 is opened to discharge the ash residue. When the ash residue accumulates in the slag collection pipe 11 and is difficult to discharge completely, the slag-pumping rod 21 can be used to push the ash residue out. When operating the slag-pumping rod 21, high-pressure hydraulic oil can be introduced into the first liquid guide pipe 26 through the hydraulic device. The hydraulic oil pushes the second sealing ring 29 down (if hydraulic oil is introduced into the second liquid guide pipe 27, the second sealing ring 29 will be pushed up), which in turn pushes the sleeve 22 and the slag-pumping rod 21 down. At the same time, the first motor 215 drives the slag-pumping rod 21 to rotate, so that the slag-pumping rod 21 pushes out all the ash residue accumulated in the slag collection pipe 11 during the up-and-down reciprocating movement and rotation. Then, the valve 13 can be closed again. By rotating the slag-pumping rod 21 in and out, not only can the ash and slag accumulated in the slag collection pipe 11 be effectively pushed out to avoid blockage, but the inside of the slag collection pipe 11 can also be cleaned to prevent the formation of an ash and slag layer on the inner wall of the slag collection pipe 11 due to long-term use.

[0024] In this embodiment, the outer wall of the slag-pumping rod 21 is provided with a limiting ring 210, and the inner wall of the sleeve 22 is provided with an annular limiting groove. The limiting ring 210 is rotatably disposed in the limiting groove. Specifically, this ensures that only relative rotation occurs between the slag-pumping rod 21 and the sleeve 22, and no axial displacement occurs, ensuring that the slag-pumping rod 21 and the sleeve 22 can move up and down synchronously.

[0025] In this embodiment, a spring 24 is provided at the lower end of the slag-plucking rod 21. A hemispherical slag-plucking block 25 is provided at the lower end of the spring 24. Specifically, the spring 24 is designed to bend when the end of the slag-plucking rod 21 touches the inner wall of the slag-collecting pipe 11. After bending, it can not only fit more closely to the inner wall of the slag-collecting pipe 11, but also effectively avoid damage to the slag-collecting pipe 11, and can better clean the ash and slag on the inner wall of the slag-collecting pipe 11.

[0026] In this embodiment, the slag-pumping rod 21, sleeve 22, and hydraulic pipe 23 are all inclined. A fixed plate 211 is provided on the outer wall of the hydraulic pipe 23. The fixed plate 211 is horizontally positioned and rotatably connected to the cover plate 14. A driving device for driving the fixed plate 211 to rotate is also included. The driving device includes a second motor 214, a drive gear located on the output shaft of the second motor 214, and a driven gear 212 located on the lower side of the outer wall of the fixed plate 211; the drive gear and the driven gear 212 mesh. Specifically, the inclined slag-pumping rod 21, in conjunction with the spring 24 and driven by the second motor 214, can more thoroughly clean the inner wall of the slag-collecting pipe 11, preventing long-term residue of ash and slag.

[0027] In this embodiment, the upper side of the outer wall of the fixed disk 211 is provided with an annular groove 213, and the upper side of the cover plate 14 is provided with multiple retaining plates 15; the retaining plates 15 are slidably disposed in the groove 213. Specifically, the cooperation between the groove 213 and the retaining plates 15 makes the rotation of the fixed disk 211, hydraulic pipe 23, sleeve 22 and slag-pumping rod 21 more stable. Since the hydraulic pipe 23 is connected to the first liquid guide pipe 26 and the second liquid guide pipe 27, the rotation of the fixed disk 211 is preferably cyclic reciprocating rather than unidirectional.

[0028] In this embodiment, the upper side wall of the hydraulic pipe 23 is provided with a first fixing plate 217, and the side wall of the first motor 215 is provided with a second fixing plate 216; the first fixing plate 217 and the second fixing plate 216 are connected by multiple telescopic rods 218. Specifically, since the first motor 215 drives the slag-pumping rod 21 to rotate, the first motor 215 can move axially synchronously with the slag-pumping rod 21, so the first motor 215 can be supported by multiple telescopic rods 218.

[0029] In summary, the ash slag valve slag-clearing mechanism of this embodiment discharges waste slag into the slag collection pipe 11 through the slag discharge pipe 12 and collects it. After a certain period of time, the valve 13 is opened to discharge the ash slag. When the ash slag accumulates in the slag collection pipe 11 and is difficult to completely discharge, the slag-clearing rod 21 can be used to knock the ash slag out. When operating the slag-clearing rod 21, high-pressure hydraulic oil can be introduced into the first guide pipe 26 through a hydraulic device. The hydraulic oil pushes the second sealing ring 29 down (if hydraulic oil is introduced into the second guide pipe 27, the second sealing ring 29 will be pushed up), thereby pushing the sleeve 22 and the slag-clearing rod 21 down. At the same time, the first motor 215 drives the slag-clearing rod 21 to rotate, so that the slag-clearing rod 21 pushes out all the ash slag accumulated in the slag collection pipe 11 during the up-and-down reciprocating movement and rotation. Then the valve 13 can be closed again. By rotating the slag-pumping rod 21 in and out, not only can the ash and slag accumulated in the slag collection pipe 11 be effectively pushed out to avoid blockage, but the inside of the slag collection pipe 11 can also be cleaned to prevent the formation of an ash and slag layer on the inner wall of the slag collection pipe 11 due to long-term use.

[0030] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A slag valve slag-clearing mechanism, comprising a vertically arranged slag-collecting pipe (11), a slag-clearing rod (21) disposed at the upper end of the slag-collecting pipe (11), a slag-discharging pipe (12) disposed on the side of the slag-collecting pipe (11), and a valve (13) disposed at the lower end of the slag-collecting pipe (11), characterized in that: Includes a cover plate (14) covering the upper end wall of the slag collection pipe (11), a sleeve (22) sleeved on the outer wall of the slag-poke rod (21), a hydraulic pipe (23) sleeved on the outer wall of the sleeve (22), a pair of first sealing rings (28) respectively fixed at both ends of the inner wall of the hydraulic pipe (23), a second sealing ring (29) fixed on the outer wall of the sleeve (22), a first liquid guide pipe (26) communicating with the upper side wall of the hydraulic pipe (23), a second liquid guide pipe (27) communicating with the lower side wall of the hydraulic pipe (23), and a first motor (215) connected to the upper end of the slag-poke rod (21); The sleeve (22) is rotatably connected to the slag-pumping rod (21), the second sealing ring (29) is disposed between a pair of first sealing rings (28), the first liquid guide tube (26) and the second liquid guide tube (27) are respectively disposed on both sides of the second sealing ring (29); the first liquid guide tube (26) and the second liquid guide tube (27) are both connected to a hydraulic device; The lower end of the slag-pumping rod (21) is provided with a spring (24); the lower end of the spring (24) is provided with a hemispherical slag-pumping block (25); the slag-pumping rod (21), the sleeve (22), and the hydraulic pipe (23) are all inclined; the outer wall of the hydraulic pipe (23) is provided with a fixing plate (211), the fixing plate (211) is horizontally arranged and rotatably connected to the cover plate (14); it also includes a driving device for driving the fixing plate (211) to rotate; The drive device includes a second motor (214), a drive gear located on the output shaft of the second motor (214), and a driven gear (212) located on the lower side of the outer wall of the fixed disk (211); the drive gear meshes with the driven gear (212); the upper side of the outer wall of the fixed disk (211) is provided with an annular groove (213), and the upper side of the cover plate (14) is provided with a plurality of clamping plates (15); the clamping plates (15) are slidably disposed in the groove (213).

2. The ash valve slag-clearing mechanism according to claim 1, characterized in that: The outer wall of the slag-pumping rod (21) is provided with a limiting ring (210), and the inner wall of the sleeve (22) is provided with an annular limiting groove. The limiting ring (210) is rotatably disposed in the limiting groove.

3. The ash valve slag-clearing mechanism according to claim 1, characterized in that: The upper side wall of the hydraulic pipe (23) is provided with a first fixing plate (217), and the side wall of the first motor (215) is provided with a second fixing plate (216); the first fixing plate (217) and the second fixing plate (216) are connected by multiple telescopic rods (218).

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