Device for cleaning accumulated ash in horizontal flue of boiler

Abstract

The utility model discloses a boiler horizontal flue accumulated ash cleaning device which comprises a horizontally-arranged smoke exhaust pipeline, an ash discharging assembly is arranged on the outer wall of the smoke exhaust pipeline and comprises a storage barrel and a fixing assembly, the storage barrel is fixedly connected with the smoke exhaust pipeline in a vertical state through the fixing assembly, and the outer wall of a spray head is fixedly connected with a sealing end cover in a penetrating and sleeving mode. The outer wall of the storage barrel is sleeved with the sealing end cover in a threaded mode, the clamping assembly is arranged on the outer wall of the storage barrel, and the clamping assembly is used for clamping and locking the sealing end cover in the rotating direction of the storage barrel. The smoke exhaust pipeline and the ash discharge assembly are used in a matched mode, the ash discharge assembly comprises the storage barrel, the fixing assembly, the sealing end cover and the spray head, the storage barrel can store dust, the dust removal frequency of the smoke exhaust pipeline is reduced, and the sealing end cover is opened; and dust adhered and accumulated in the storage cylinder and the smoke exhaust pipeline can be directly scraped and cleaned by a tool, so that the cleaning convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flues, in particular to a device for cleaning dust accumulation in a horizontal flue of a boiler. Background Art

[0002] When the boiler is running, dust will be generated. When using horizontal pipes to discharge dusty flue gas, the height of the dust accumulation inside the horizontal pipes is 2-3m. On the one hand, it will increase the flue gas resistance when the unit is running, resulting in increased power consumption of the induced draft fan, which in turn leads to poor economic efficiency of the unit operation.

[0003] In order to deal with the dust accumulated inside the horizontal smoke duct, a plurality of air blowing nozzles are usually installed directly on the outer wall of the horizontal smoke duct. When the air blowing nozzles blow gas into the horizontal smoke duct, the dust inside the horizontal smoke duct can be blown out, thereby reducing the dust accumulation inside the horizontal smoke duct.

[0004] Directly using an air blowing nozzle to blow gas into the horizontal smoke duct will result in dust that is attached and accumulated and cannot be blown away. In addition, the method of directly using an air blowing nozzle is not convenient for increasing the dust carrying capacity inside the horizontal smoke duct, reducing the frequency of its air blowing cleaning, and is not convenient for cleaning the dust blocks that are attached to the inside of the horizontal smoke duct. Utility Model Content

[0005] The utility model aims to provide a boiler horizontal flue dust cleaning device to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a boiler horizontal flue dust cleaning device, comprising a horizontally arranged flue gas exhaust pipe;

[0007] The outer wall of the smoke exhaust duct is provided with an ash exhaust component, and the ash exhaust component comprises:

[0008] A storage cylinder and a fixing assembly, wherein the storage cylinder is fixedly connected to the smoke exhaust pipe in a vertical state through the fixing assembly;

[0009] A sealing end cap and a nozzle, wherein the outer wall of the nozzle is fixedly inserted and sleeved with the sealing end cap, and the sealing end cap is threadedly sleeved with the outer wall of the storage tube;

[0010] The clamping assembly is arranged on the outer wall of the storage tube, and is used to clamp and lock the sealing end cover in the rotation direction of the storage tube.

[0011] Preferably, a through hole is opened at the bottom of the smoke exhaust pipe, the top of the outer wall of the storage cylinder is slidably connected with the inner cavity of the through hole, a shielding cover is arranged on the top of the nozzle, and a fixing rod is fixedly connected between the shielding cover and the sealing end cover.

[0012] Preferably, the fixing assembly comprises:

[0013] A first fixing plate and fixing bolts, wherein the first fixing plate is sleeved on the outer wall of the smoke exhaust duct;

[0014] The second fixing plate is fixedly sleeved on the outer wall of the storage tube, and the first fixing plate and the second fixing plate are fixedly sleeved on the outer wall of the smoke exhaust pipe by fixing bolts.

[0015] Preferably, arc sealing strips are symmetrically slidably sleeved on the sides of the inner walls of the first fixed plate and the second fixed plate, and the butt connection between the first fixed plate and the second fixed plate and the end connection of the arc sealing strip are cross-shaped and vertically staggered.

[0016] Preferably, the clamping assembly comprises:

[0017] A handle, the handle being fixedly connected to the top of the sealing end cover;

[0018] A clamping piece is slidably arranged on the front side of the storage tube and is clamped on the outer wall of the handle.

[0019] Preferably, a fixed block is fixedly connected to the front of the storage cylinder, a guide rod is symmetrically fixedly connected to the top of the clamping piece, a limit spring is slidably sleeved on the outer wall of the guide rod, the limit spring is located between the fixed block and the clamping piece, and the guide rod passes through the fixed block and is fixedly connected to the limit block.

[0020] Technical effects and advantages of the utility model:

[0021] The utility model utilizes the coordinated use of a smoke exhaust duct and an ash exhaust component. The ash exhaust component includes a storage cylinder, a fixing component, a sealing end cover and a nozzle. The storage cylinder can store dust, thereby reducing the frequency of dust removal in the smoke exhaust duct. When the sealing end cover is opened, the dust adhered and accumulated inside the storage cylinder and the smoke exhaust duct can be directly scraped and cleaned with a tool, thereby improving the convenience of cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0023] Figure 2 It is a schematic diagram of the internal structure of the front part of the utility model.

[0024] Figure 3 For this utility model Figure 1 Enlarged structural diagram at A in the middle.

[0025] In the figure: 1. smoke exhaust duct; 2. ash exhaust assembly; 21. storage cylinder; 22. fixing assembly; 221. first fixing plate; 222. second fixing plate; 223. fixing bolt; 224. arc sealing strip; 23. sealing end cover; 24. nozzle; 25. snap-fit ​​assembly; 251. handle; 252. snap-fit ​​part; 253. fixing block; 254. guide rod; 255. limit spring; 256. limit block; 26. shielding cover; 27. fixing rod. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] The utility model provides Figure 1-3 The boiler horizontal flue dust cleaning device shown in the figure comprises a horizontally arranged smoke exhaust pipe 1, the outer wall of the smoke exhaust pipe 1 is provided with an ash discharge assembly 2, and the outer wall of the smoke exhaust pipe 1 is multiple, and the ash discharge assembly 2 comprises a storage cylinder 21, a fixing assembly 22, a sealing end cover 23, a nozzle 24 and a clamping assembly 25. The storage cylinder 21 is fixedly connected to the smoke exhaust pipe 1 in a vertical state through the fixing assembly 22, the outer wall of the nozzle 24 and the sealing end cover 23 are fixedly inserted and sleeved, and the sealing end cover 23 is threadedly sleeved on the outer wall of the storage cylinder 21, and a through hole is provided at the bottom of the smoke exhaust pipe 1, and the top of the outer wall of the storage cylinder 21 is slidably sleeved with the inner cavity of the through hole. When the boiler discharges ash through the smoke exhaust pipe 1, the storage cylinder 21 can store a certain amount of dust to avoid the dust from directly accumulating in the smoke exhaust pipe 1, thereby reducing the amount of dust accumulated inside the smoke exhaust pipe 1, thereby In order to reduce the resistance to smoke emission caused by dust accumulation inside the smoke exhaust duct 1, a shielding hood 26 is arranged on the top of the nozzle 24, and a fixing rod 27 is fixedly connected between the shielding hood 26 and the sealing end cover 23. The soot blowing air source of the nozzle 24 comes from the fluidized air main pipe of the return air chamber. The average wind pressure inside the air main pipe is 35KPa. Therefore, when the nozzle 24 is passed with air flow, the dust inside the storage tube 21 can be blown back into the smoke exhaust duct 1 and discharged from the flow direction of the smoke exhaust duct 1, and the shielding hood 26 can block the dust falling into the storage tube 21 to prevent the dust from falling directly into the air holes inside the nozzle 24. The clamping assembly 25 is arranged on the outer wall of the storage tube 21, and the clamping assembly 25 is used to clamp and lock the sealing end cover 23 in the rotation direction of the storage tube 21. The clamping assembly 25 can ensure the stability of the sealing end cover 23 installed at the bottom of the storage tube 21.

[0028] In particular, the fixing assembly 22 includes a first fixing plate 221, a second fixing plate 222 and a fixing bolt 223. The first fixing plate 221 is sleeved on the outer wall of the smoke exhaust pipe 1, and the second fixing plate 222 is fixedly sleeved on the outer wall of the storage tube 21. The first fixing plate 221 and the second fixing plate 222 are fixedly sleeved on the outer wall of the smoke exhaust pipe 1 by the fixing bolt 223. By removing the fixing bolt 223, the first fixing plate 221 and the second fixing plate 222 can be removed, thereby removing the storage tube 21 and the smoke exhaust pipe 1. The compacted dust accumulated inside the pipe 1 is scraped and cleaned, and the sides of the inner walls of the first fixed plate 221 and the second fixed plate 222 are symmetrically slidably sleeved with arc sealing strips 224, and the butt connection between the first fixed plate 221 and the second fixed plate 222 and the end connection of the arc sealing strip 224 are cross-staggered vertically, so that the two arc sealing strips 224 on both sides of the first fixed plate 221 and the second fixed plate 222 can improve the stability of the connection between the first fixed plate 221 and the second fixed plate 222 and the smoke exhaust pipe 1.

[0029] Furthermore, the clamping assembly 25 includes a handle 251 and a clamping member 252. The handle 251 is fixedly connected to the top of the sealing end cover 23. There are multiple handles 251, and they are arranged in a circular array. The clamping member 252 is slidably arranged on the front of the storage cylinder 21. The clamping member 252 is clamped on the outer wall of the handle 251. The clamping member 252 is slid upward to separate from the handle 251. The multiple handles 251 can be used to drive the sealing end cover 23 to rotate and separate from the storage cylinder 21, so as to clean the dust inside the storage cylinder 21 and the smoke exhaust pipe 1. The front of the storage cylinder 21 is fixed. A fixing block 253 is connected, and a guide rod 254 is symmetrically fixedly connected to the top of the clamping member 252. The outer wall of the guide rod 254 is slidably sleeved with a limit spring 255. The limit spring 255 can give the clamping member 252 a downward elastic force, thereby ensuring the stability of the clamping member 252 and the handle 251. The limit spring 255 is located between the fixing block 253 and the clamping member 252. The guide rod 254 passes through the fixing block 253 and is fixedly connected to the limit block 256. The guide rod 254 can ensure the stability of the clamping member 252 and the limit spring 255 working on the front side of the storage tube 21.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A boiler horizontal flue dust cleaning device, comprising a horizontally arranged flue gas exhaust pipe (1); It is characterized in that The outer wall of the smoke exhaust duct (1) is provided with an ash exhaust component (2), and the ash exhaust component (2) comprises: A storage cylinder (21) and a fixing assembly (22), wherein the storage cylinder (21) is fixedly connected to the smoke exhaust pipe (1) in a vertical state via the fixing assembly (22); A sealing end cover (23) and a nozzle (24), wherein the outer wall of the nozzle (24) is fixedly inserted and sleeved with the sealing end cover (23), and the sealing end cover (23) is threadedly sleeved with the outer wall of the storage tube (21); A clamping assembly (25), the clamping assembly (25) being arranged on the outer wall of the storage cylinder (21), and the clamping assembly (25) being used to clamp and lock the sealing end cover (23) in the rotation direction of the storage cylinder (21).

2. A boiler horizontal flue dust cleaning device according to claim 1, characterized in that: A through hole is provided at the bottom of the smoke exhaust pipe (1), the top of the outer wall of the storage cylinder (21) is slidably sleeved with the inner cavity of the through hole, a shielding cover (26) is provided at the top of the nozzle (24), and a fixing rod (27) is fixedly connected between the shielding cover (26) and the sealing end cover (23).

3. The boiler horizontal flue dust cleaning device according to claim 1, characterized in that: The fixing assembly (22) comprises: A first fixing plate (221) and fixing bolts (223), wherein the first fixing plate (221) is sleeved on the outer wall of the smoke exhaust pipe (1); The second fixing plate (222) is fixedly sleeved on the outer wall of the storage cylinder (21); the first fixing plate (221) and the second fixing plate (222) are fixedly sleeved on the outer wall of the smoke exhaust pipe (1) via fixing bolts (223).

4. A boiler horizontal flue dust cleaning device according to claim 3, characterized in that: The inner walls of the first fixed plate (221) and the second fixed plate (222) are symmetrically and slidably sleeved with arc sealing strips (224) on their sides, and the butt connection between the first fixed plate (221) and the second fixed plate (222) and the end connection of the arc sealing strip (224) are cross-shaped and vertically staggered.

5. The boiler horizontal flue dust cleaning device according to claim 1, characterized in that: The clamping assembly (25) comprises: A handle (251), wherein the handle (251) is fixedly connected to the top of the sealing end cover (23); A clamping piece (252), wherein the clamping piece (252) is slidably disposed on the front side of the storage tube (21), and the clamping piece (252) is clamped to the outer wall of the handle (251).

6. A boiler horizontal flue dust cleaning device according to claim 5, characterized in that: A fixing block (253) is fixedly connected to the front of the storage cylinder (21); a guide rod (254) is symmetrically fixedly connected to the top of the clamping piece (252); a limit spring (255) is slidably sleeved on the outer wall of the guide rod (254); the limit spring (255) is located between the fixing block (253) and the clamping piece (252); and the guide rod (254) passes through the fixing block (253) and is fixedly connected to the limit block (256).

Images