Subsequent decoking and deashing device for incineration boiler

Abstract

The invention belongs to the technical field of incineration boiler decoking, and particularly relates to a follow-up decoking and deashing device for an incineration boiler, the follow-up decoking and deashing device for the incineration boiler comprises a negative pressure deashing box, a holding mechanism is connected to the negative pressure deashing box, an adjusting mechanism and a cleaning assembly are connected to the holding mechanism, and the orientation of the cleaning assembly can be adjusted through the cleaning assembly. The cleaning assembly comprises a shell, a rotating disc and an air exhaust mechanism are rotationally installed in the shell, coke blocks on the inner wall of the hearth can be planed and cleaned when the rotating disc rotates, the rotating air exhaust mechanism can cool the rotating disc, and the coke blocks on the inner wall of the hearth can be cleaned. And meanwhile, the cleaning assembly can overcome part of gravity and can be attached to the inner wall of the hearth more tightly, and more labor is saved when the cleaning assembly is lifted to clean the inner wall of the hearth. Coke blocks on the inner wall of the hearth are planed and cleaned through the rotating disc, and compared with a traditional knocking cleaning mode, the planing cleaning mode cannot cause loosening of boiler parts, and the boiler is not prone to being damaged.

Description

Technical Field

[0001] The present invention relates to the technical field of burning boiler coke cleaning, and particularly relates to a subsequent coke and ash cleaning device for a burning boiler. Background Art

[0002] With the popularization of burning and disposing of hazardous waste, the technology has become more and more mature, and the process management and requirements for production have become higher and higher. After the materials are burned, the residue temperature decreases and forms large chunks that adhere to the discharge end of the rotary kiln and the inner wall of the secondary combustion chamber. After a long time, large chunks of coke are formed, which affects production and equipment safety. For the coking of the incinerator, the previous method was to manually clean it after the furnace was stopped. After the incinerator needs to be shut down and cooled, workers enter the inside of the incinerator for manual cleaning. Manual operation has potential safety hazards, and it is necessary to stop the furnace, which affects production and increases production costs.

[0003] Moreover, in the existing burning boilers, the coked ash is transported out of the burning boiler manually, which increases the labor intensity of the workers, and the cleaning efficiency is low. And usually, the method of knocking to remove coke is adopted. The vibration generated by knocking easily causes the loosening of the boiler components, and the knocking device is relatively heavy. It is more laborious for workers to lift the knocking device to clean the furnace wall. Therefore, a subsequent coke and ash cleaning device for a burning boiler is proposed. Summary of the Invention

[0004] In order to solve the disadvantages existing in the prior art, the present invention proposes a subsequent coke and ash cleaning device for a burning boiler.

[0005] To achieve the above object, the present invention adopts the following technical scheme: A subsequent coke and ash cleaning device for a burning boiler, including a negative pressure ash suction box, a holding mechanism is connected to the negative pressure ash suction box, an adjustment mechanism and a cleaning component are connected to the holding mechanism, the orientation of the cleaning component can be adjusted through the cleaning component, the cleaning component includes a housing, a rotating disk and an air suction mechanism are rotatably installed in the housing, when the rotating disk rotates, it can plane and clean the coke blocks on the inner wall of the furnace. The rotating air suction mechanism can not only cool the rotating disk, but also enable the cleaning component to overcome part of the gravity and make the cleaning component fit more closely with the inner wall of the furnace, so that it is more labor-saving when lifting the cleaning component to clean the inner wall of the furnace.

[0006] Preferably, the cleaning component includes a housing, the rotating disk is rotatably installed on the inner wall of the housing, a positioning cylinder is fixedly installed on the top of the rotating disk, an internal gear ring is fixedly installed on the inner wall of the rotating disk, a gear is meshed and connected inside the internal gear ring, a motor is fixedly installed on the top of the housing, and the output shaft of the motor rotates and extends into the housing and is fixedly connected with the gear.

[0007] Preferably, an arc-shaped convex portion is provided at the bottom of the rotating disk. Two inclined holes symmetrically distributed about the center are formed in the rotating disk, and a cutting edge is provided at the bottom edge of the inclined hole.

[0008] Preferably, an annular brush disk is fixedly installed in an embedded manner at the bottom of the rotating disk. A dust collection cover fixedly connected to the top of the housing is rotatably installed at the top of the housing. The dust collection cover is in a horn shape. The internal gear ring and the gear are located between the dust collection cover and the positioning cylinder. A first hose is provided on the negative pressure dust extraction box. The holding mechanism includes a first rigid pipe connected to the first hose and a second rigid pipe passing through and fixedly connected to the housing. The second rigid pipe is communicated with the dust collection cover. The same second hose is fixedly connected between the first rigid pipe and the second rigid pipe. The first hose and the holding handle are fixedly connected to the same holding handle.

[0009] Preferably, a ventilation cavity is provided between the outer side of the positioning cylinder and the inner wall of the housing and the top of the rotating disk. A plurality of air inlets communicated with the ventilation cavity and distributed in a circumferential array are formed in the side wall of the housing.

[0010] Preferably, a plurality of air gathering covers distributed in a circumferential array are fixedly installed on the housing in a penetrating manner. The air gathering covers are communicated with the ventilation cavity. The air gathering covers are in a horn shape. An elbow is detachably installed on the air gathering covers.

[0011] Preferably, an air extraction mechanism is sleeved on the positioning cylinder. The air extraction mechanism includes a fixed ring fixedly sleeved on the positioning cylinder. A plurality of blades distributed in a circumferential array are fixedly installed on the side surface of the fixed ring. An outer circular cover is fixedly sleeved on the outer side of the housing.

[0012] Preferably, the adjustment mechanism includes a first rectangular plate. A rotating shaft is provided on the first rectangular plate. A second rectangular plate is rotatably sleeved on the rotating shaft. A first fixing ring and a second fixing ring are respectively fixedly installed on the first rectangular plate and the rotating shaft. The first fixing ring is fixedly sleeved on the first rigid pipe. The second fixing ring is fixedly sleeved on the second rigid pipe. An arc-shaped frame is provided on the first rectangular plate. A plurality of first pin holes distributed at equal intervals are formed in the arc-shaped frame. A pin shaft is provided on the second rectangular plate. A pin shaft is detachably installed in the coaxially communicated first pin hole and second pin hole.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The present invention shaves and cleans the coke blocks on the inner wall of the furnace through the rotating disk. Compared with the traditional knocking cleaning method, the shaving cleaning method of the present application will not cause the loosening of the boiler components and is not likely to cause damage to the boiler. 2. Through the cooperation of the air extraction mechanism, multiple air gathering hoods and elbows, the present application can not only enable the cleaning component to overcome part of the gravity, making it easier for the staff to lift the cleaning component to clean the furnace wall, but also make the rotating disk fit more closely with the coke lumps on the furnace wall, and can cool the rotating disk during operation, avoiding the influence of high temperature on the planing ability of the rotating disk. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 FIG. is a schematic diagram of the overall structure of a subsequent coke removal and ash cleaning device for an incineration boiler proposed by the present invention; Figure 2 FIG. is a schematic diagram of the holding mechanism, adjustment mechanism and cleaning component in a subsequent coke removal and ash cleaning device for an incineration boiler proposed by the present invention; Figure 3 FIG. is a schematic diagram of the second rigid tube and the cleaning component in a subsequent coke removal and ash cleaning device for an incineration boiler proposed by the present invention; Figure 4 FIG. is a side sectional view of the second rigid tube and the cleaning component in a subsequent coke removal and ash cleaning device for an incineration boiler proposed by the present invention; Figure 5 FIG. is a schematic diagram of the air extraction mechanism in a subsequent coke removal and ash cleaning device for an incineration boiler proposed by the present invention; Figure 6 FIG. is a side sectional view of the rotating disk and the annular brush disk in a subsequent coke removal and ash cleaning device for an incineration boiler proposed by the present invention; Figure 7 FIG. is a schematic diagram of the adjustment mechanism in a subsequent coke removal and ash cleaning device for an incineration boiler proposed by the present invention; Figure 8 FIG. is a schematic diagram when the cleaning component cleans the side wall of the furnace in a subsequent coke removal and ash cleaning device for an incineration boiler proposed by the present invention; Figure 9 FIG. is a schematic diagram when the cleaning component cleans the top wall of the furnace in a subsequent coke removal and ash cleaning device for an incineration boiler proposed by the present invention.

[0015] In the figure: 1. Negative pressure ash extraction box; 11. First hose; 2. Holding mechanism; 21. Holding handle; 22. First rigid tube; 23. Second rigid tube; 24. Second hose; 3. Adjusting mechanism; 31. First rectangular plate; 32. Rotating shaft; 33. Second rectangular plate; 34. Arc-shaped frame; 35. First fixing ring; 36. Second fixing ring; 37. First pin hole; 38. Second pin hole; 39. Pin shaft; 4. Cleaning assembly; 41. Housing; 42. Positioning cylinder; 43. Rotating disk; 431. Arc-shaped convex part; 432. Oblique hole; 433. Cutting edge; 44. Ash collection cover; 45. Internal gear ring; 46. Gear; 47. Motor; 48. Ventilation cavity; 49. Air extraction mechanism; 491. Fixing ring; 492. Blade; 410. Outer circular cover; 411. Annular brush disk; 412. Air gathering cover; 413. Elbow; 414. Air inlet. Detailed implementation manners

[0016] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0017] Please refer to Figures 1-9 , the present invention provides a technical solution: a subsequent coke removal and ash cleaning device for an incinerator boiler, including a negative pressure ash extraction box 1, a holding mechanism 2 is connected to the negative pressure ash extraction box 1, an adjusting mechanism 3 and a cleaning assembly 4 are connected to the holding mechanism 2, the orientation of the cleaning assembly 4 can be adjusted through the cleaning assembly 4, the cleaning assembly 4 includes a housing 41, a rotating disk 43 and an air extraction mechanism 49 are rotatably installed in the housing 41, when the rotating disk 43 rotates, it can plane and clean the coke blocks on the inner wall of the furnace, and the rotating air extraction mechanism 49 can not only cool the rotating disk 43, but also enable the cleaning assembly 4 to overcome part of the gravity and make the cleaning assembly 4 fit more closely with the inner wall of the furnace, so that it is more labor-saving when lifting the cleaning assembly 4 to clean the inner wall of the furnace.

[0018] The cleaning assembly 4 includes a housing 41, the rotating disk 43 is rotatably installed on the inner wall of the housing 41, a positioning cylinder 42 is fixedly installed on the top of the rotating disk 43, an internal gear ring 45 is fixedly installed on the inner wall of the rotating disk 43, a gear 46 is meshed and connected inside the internal gear ring 45, a motor 47 is fixedly installed on the top of the housing 41, and the output shaft of the motor 47 rotates and extends into the housing 41 and is fixedly connected to the gear 46.

[0019] An arc-shaped convex part 431 is provided at the bottom of the rotating disk 43, two symmetrically distributed oblique holes 432 are formed in the rotating disk 43, and a cutting edge 433 is provided at the bottom edge of the oblique hole 432.

[0020] Furthermore, the provided arc-shaped convex part 431 can be applicable to coke lumps with uneven surfaces, and it can also ensure that when the rotating disk 43 is not parallel to the furnace wall, the two inclined holes 432 can still plane the coke lumps.

[0021] An annular brush disk 411 is fixedly installed in an embedded manner at the bottom of the rotating disk 43. A dust collection cover 44 fixedly connected to the top of the housing 41 is rotatably installed at the top of the housing 41. The dust collection cover 44 is in a horn shape. The internal gear ring 45 and the gear 46 are located between the dust collection cover 44 and the positioning cylinder 42. A first hose 11 is provided on the negative pressure dust extraction box 1. The holding mechanism 2 includes a first rigid tube 22 connected to the first hose 11 and a second rigid tube 23 passing through and fixedly connected to the housing 41. The second rigid tube 23 is communicated with the dust collection cover 44. The same second hose 24 is fixedly connected between the first rigid tube 22 and the second rigid tube 23. The connection between the first hose 11 and the holding handle 21 is fixedly connected to the same holding handle 21.

[0022] Furthermore, by providing the dust collection cover 44, the coke lump powder after planing the internal gear ring 45 and the gear 46 from the external dust can be separated, preventing it from affecting the transmission between the internal gear ring 45 and the gear 46.

[0023] A ventilation cavity 48 is provided between the outer side of the positioning cylinder 42 and the inner wall of the housing 41 and the top of the rotating disk 43. A plurality of air inlets 414 communicated with the ventilation cavity 48 and distributed in a circumferential array are formed on the side wall of the housing 41.

[0024] A plurality of air collecting covers 412 distributed in a circumferential array are fixedly installed in a penetrating manner on the housing 41. The air collecting covers 412 are communicated with the ventilation cavity 48. The air collecting covers 412 are in a horn shape. An elbow 413 is detachably installed on the air collecting covers 412.

[0025] Furthermore, when the gas in the ventilation cavity 48 is discharged through the horn-shaped air collecting covers 412, the flow rate can be increased, improving the reaction force.

[0026] An air extraction mechanism 49 is sleeved on the positioning cylinder 42. The air extraction mechanism 49 includes a fixing ring 491 fixedly sleeved on the positioning cylinder 42. A plurality of blades 492 distributed in a circumferential array are fixedly installed on the side surface of the fixing ring 491. An outer circular cover 410 is fixedly sleeved outside the housing 41.

[0027] Furthermore, when the rotating disk 43 rotates, the floating dust on the coke lumps will be cleaned by the annular brush disk 411, ensuring that the floating dust on the coke lumps does not affect the subsequent planing of the rotating disk 43. For the cleaned floating dust, at this time, the rotating air extraction mechanism 49 will cause a negative pressure state inside the outer circular cover 410. Then, the cleaned floating dust will be sucked into the outer circular cover 410 and then enter the ventilation cavity 48 through the plurality of air inlets 414 and be discharged through the plurality of air collecting covers 412; AsFigure 4 As shown, the bottom end of the outer circular cover 410 is higher than the bottom end of the rotating disk 43, so that when the coke blocks are cleaned, the outer circular cover 410 does not contact the coke blocks.

[0028] The adjustment mechanism 3 includes a rectangular plate 1 31, on which a rotating shaft 32 is provided, on which a rectangular plate 2 33 is rotatably sleeved, and on which the rectangular plate 1 31 and the rotating shaft 32 are respectively fixedly mounted a fixing ring 1 35 and a fixing ring 2 36, the fixing ring 1 35 is fixedly sleeved on the hard tube 1 22, and the fixing ring 2 36 is fixedly sleeved on the hard tube 23, the rectangular plate 1 31 is provided with an arc frame 34, on which a plurality of pin holes 1 37 distributed at equal intervals are provided, and on the rectangular plate 2 33 a pin shaft 39 is provided, and on the coaxially connected pin hole 1 37 and the pin hole 2 38 are detachably mounted with the pin shaft 39.

[0029] Furthermore, by removing the pin 39, the rectangular plate 2 33 can be rotated around the rotating shaft 32, so that the hard tube 1 22 and the hard tube 2 23 can present various angles. When the hard tube 23 and the hard tube 1 22 present the target angle, the pin 39 is inserted into the corresponding pin hole 1 37 and the pin hole 2 38 to prevent the rectangular plate 2 33 from rotating. Therefore, by adjusting the angle between the cleaning component 4 and the hard tube 1 22, the cleaning component 4 can be perpendicular to the furnace wall to be cleaned, and the hose 2 24 is arranged between the fixing ring 1 35 and the fixing ring 2 36.

[0030] In this embodiment: when in use, the handle 21 and the hard tube 1 22 are held to press the rotating disk 43 against the inner wall of the furnace, and the motor 47 is started to rotate the gear 46, and the gear 46 then drives the positioning cylinder 42 to rotate through the inner gear ring 45, and the positioning cylinder 42 then drives the rotating disk 43 to rotate. During the rotation of the rotating disk 43, the two cutting edges 433 will plane the coke blocks on the furnace, and the planed powder will pass through the inclined hole 432 and enter the ash collecting cover 44, and then after being sucked by the negative pressure ash extraction box 1, the powder in the ash collecting cover 44 will pass through the hard tube 23, the hose 24, the hard tube 1 22 and the hose 1 11 in turn into the negative pressure ash extraction box 1; When the positioning cylinder 42 rotates, it will drive the exhaust mechanism 49 to rotate. At this time, the external air will enter the ventilation chamber 48 through the air inlet 414 and then be discharged by the multiple air collecting hoods 412. When the rotating disk 43 is planing the coke block, due to the friction between the two, the rotating disk 43 will quickly heat up. The air flowing through the ventilation chamber 48 will carry away the heat on the rotating disk 43, so that the rotating disk 43 will not be overheated and affect the planing ability. In addition, if Figure 8As shown, the air collecting hood 412 at half of the quantity is installed with an elbow 413, and the elbow 413 is arranged downward. When the cleaning component 4 performs planing cleaning on the furnace side wall, the air collecting hood 412 installed with the elbow 413 at half of the quantity will provide a certain upward thrust to the cleaning component 4, and the air collecting hood 412 without the elbow 413 installed at the other half of the quantity will provide an axial thrust to the cleaning component 4, so that the cleaning component 4 can fit more closely with the furnace side wall. In summary, by providing a certain axial thrust and upward thrust to the cleaning component 4, it is more labor-saving for the staff to lift the cleaning component 4 to clean the furnace side wall; As Figure 9 shown, when the cleaning component 4 cleans the furnace top wall, elbows 413 are not installed on all the air collecting hoods 412, and all the air collecting hoods 412 provide an axial upward thrust to the cleaning component 4. These upward thrusts can overcome part of the gravity of the cleaning component 4, making it more labor-saving for the staff to lift the cleaning component 4 to clean the furnace top wall. When cleaning the furnace bottom wall, the downward thrust generated by multiple air collecting hoods 412 on the cleaning component 4 and the gravity of the cleaning component 4 itself can make the cleaning component 4 fit more closely with the furnace bottom wall, effectively improving the cleaning effect of the cleaning component 4.

[0031] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, making equivalent substitutions or changes, should be covered within the protection scope of the present invention.

Claims

1. A subsequent coke removal and ash cleaning device for an incineration boiler, comprising a negative pressure ash extraction box (1), characterized in that: A holding mechanism (2) is connected to the negative pressure ash extraction box (1). An adjustment mechanism (3) and a cleaning component (4) are connected to the holding mechanism (2). The orientation of the cleaning component (4) can be adjusted through the cleaning component (4). The cleaning component (4) includes a housing (41). A rotating disk (43) and an air extraction mechanism (49) are rotatably installed in the housing (41). When the rotating disk (43) rotates, it can plane and clean the coke blocks on the inner wall of the furnace. The rotating air extraction mechanism (49) can not only cool the rotating disk (43), but also enable the cleaning component (4) to overcome part of the gravity and make the cleaning component (4) fit more closely to the inner wall of the furnace, making it more labor-saving when lifting the cleaning component (4) to clean the inner wall of the furnace.

2. The subsequent coke removal and ash cleaning device for an incineration boiler according to claim 1, characterized in that: The cleaning component (4) includes a housing (41). The rotating disk (43) is rotatably installed on the inner wall of the housing (41). A positioning cylinder (42) is fixedly installed at the top of the rotating disk (43). An internal gear ring (45) is fixedly installed on the inner wall of the rotating disk (43). A gear (46) is meshed and connected inside the internal gear ring (45). A motor (47) is fixedly installed at the top of the housing (41). The output shaft of the motor (47) rotates and extends into the housing (41) and is fixedly connected to the gear (46).

3. The subsequent coke removal and ash cleaning device for an incineration boiler according to claim 2, characterized in that: An arc-shaped protruding portion (431) is provided at the bottom of the rotating disk (43). Two inclined holes (432) symmetrically distributed about the center are formed in the rotating disk (43). A cutting edge (433) is provided at the bottom edge of the inclined hole (432).

4. The subsequent coke removal and ash cleaning device for an incineration boiler according to claim 2, characterized in that: An annular brush disk (411) is fixedly installed at the bottom of the rotating disk (43) in an embedded manner. An ash collection cover (44) fixedly connected to the top of the housing (41) is rotatably installed at the top of the housing (41). The ash collection cover (44) is in a horn shape. The internal gear ring (45) and the gear (46) are located between the ash collection cover (44) and the positioning cylinder (42). A first hose (11) is provided on the negative pressure ash extraction box (1). The holding mechanism (2) includes a first rigid tube (22) connected to the first hose (11) and a second rigid tube (23) passing through and fixedly connected to the housing (41). The second rigid tube (23) is communicated with the ash collection cover (44). The same second hose (24) is fixedly connected between the first rigid tube (22) and the second rigid tube (23). The connection between the first hose (11) and the holding handle (21) is fixedly connected to the same holding handle (21).

5. The subsequent coke removal and ash cleaning device for an incineration boiler according to claim 4, characterized in that: A ventilation cavity (48) is provided between the outer side of the positioning cylinder (42) and the inner wall of the housing (41) and the top of the rotating disk (43). A plurality of air inlets (414) communicated with the ventilation cavity (48) and distributed in a circumferential array are formed on the side wall of the housing (41).

6. The subsequent coke removal and ash cleaning device for an incineration boiler according to claim 5, characterized in that: A plurality of air collecting hoods (412) distributed in a circumferential array are fixedly installed on the housing (41) in a penetrating manner. The air collecting hoods (412) are communicated with the ventilation cavity (48). The air collecting hoods (412) are in a horn shape. An elbow (413) is detachably installed on the air collecting hoods (412).

7. The subsequent coke removal and ash cleaning device for an incineration boiler according to claim 6, characterized in that: An air extraction mechanism (49) is sleeved on the positioning cylinder (42). The air extraction mechanism (49) includes a fixing ring (491) fixedly sleeved on the positioning cylinder (42). A plurality of blades (492) are fixedly installed on the side surface of the fixing ring (491) and are distributed in a circumferential array. An outer circular cover (410) is fixedly sleeved on the outside of the housing (41).

8. The subsequent coke removal and ash cleaning device for an incineration boiler according to claim 4, characterized in that: The adjustment mechanism (3) includes a first rectangular plate (31). A rotating shaft (32) is provided on the first rectangular plate (31). A second rectangular plate (33) is rotatably sleeved on the rotating shaft (32). A first fixing ring (35) and a second fixing ring (36) are respectively and fixedly installed on the first rectangular plate (31) and the rotating shaft (32). The first fixing ring (35) is fixedly sleeved on the first rigid tube (22). The second fixing ring (36) is fixedly sleeved on the second rigid tube (23). An arc-shaped frame (34) is provided on the first rectangular plate (31). A plurality of first pin holes (37) are arranged at equal intervals on the arc-shaped frame (34). A pin shaft (39) is provided on the second rectangular plate (33). The pin shaft (39) is detachably installed in the coaxially connected first pin hole (37) and second pin hole (38).

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