Accumulated ash cleaning device for coal-fired boiler

Abstract

The utility model relates to the technical field of boiler cleaning, and discloses an accumulated ash cleaning device for a coal-fired boiler, which comprises a base, a hydraulic rod is embedded in the middle of the base, a hanging barrel is fixed at the telescopic end of the hydraulic rod, a motor is mounted on the inner surface of the upper end of the hanging barrel through a bolt, a driving gear is fixed on an output shaft of the motor, and the driving gear is fixed on the output shaft of the motor. Sliding rails are fixed to the inner surfaces of the two sides of the hanging barrel through connecting rods, and air holes are formed in the upper surfaces of the two sides of the hanging barrel. And the toothed plate is arranged on the inner side of the sliding rail, the toothed plate is meshed with the outer walls of the two sides of the driving gear, and a brush base is fixed to the end, away from the driving gear, of the toothed plate. The accumulated ash cleaning device for the coal-fired boiler is provided with the cleaning brush, the cleaning brush is driven by the telescopic end of the hydraulic rod and conveniently stretches out and draws back on the two sides of the hanging barrel, so that the cleaning brush can adaptively adjust the inner walls of boilers of different sizes and specifications according to requirements, and accumulated ash cleaning of the inner walls of the boilers is achieved through repeated brushing in the vertical direction.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler cleaning, in particular to an ash cleaning device for a coal-fired boiler. Background Art

[0002] Boiler cleaning is commonly known as boiler descaling, which refers to the cleaning operation of removing scale inside the boiler. Hard scale is usually cemented on the surface of the boiler or pipes. If scale is formed in a coal-fired boiler, the hard scale has poor thermal conductivity, which will lead to the deterioration of heat transfer on the heating surface and waste of fuel. Secondly, hard scale will also greatly increase the risk of boiler bursting or even explosion due to thermal expansion and contraction and uneven force.

[0003] After searching, it is found that there is a coal-fired boiler ash cleaning device with publication number CN219756402U, which includes a movable seat with a collecting frame fixedly connected to the top of the movable seat, which is used to solve the problem of ash rolling down and spilling during the overturning of the ash. This device cleans the slag by turning over the boiler, and cannot adaptively clean the inner wall of the boiler according to the size and specifications of the boiler, and the cleaning effect is poor. Therefore, we propose a ash cleaning device for coal-fired boilers. Utility Model Content

[0004] The purpose of the utility model is to provide a dust cleaning device for a coal-fired boiler to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a dust cleaning device for a coal-fired boiler, comprising:

[0006] A base, wherein a hydraulic rod is embedded in the middle of the base, a hanging tube is fixed to the telescopic end of the hydraulic rod, a motor is installed on the inner surface of the upper end of the hanging tube through bolts, a driving gear is fixed to the output shaft of the motor, slide rails are fixed to the inner surfaces of both sides of the hanging tube through connecting rods, and air holes are opened on the upper surfaces of both sides of the hanging tube;

[0007] A toothed plate is arranged on the inner side of the slide rail and meshes with the outer walls on both sides of the driving gear. A brush holder is fixed to one end of the toothed plate away from the driving gear, and the brush holder penetrates to one outer wall of the hanging tube. A cleaning brush is connected to the outer wall of the other end of the brush holder by bolts.

[0008] Furthermore, the hanging barrel is telescopically connected to the base through the telescopic end of the hydraulic rod, the driving gear is rotationally connected to the hanging barrel through the motor, and the toothed plate is slidingly connected to the slide rail through the driving gear and the output shaft of the motor.

[0009] Furthermore, a detachable structure is formed between the cleaning brush and the brush holder, and the cleaning brush is telescopically connected to the hanging tube through the tooth plate.

[0010] Furthermore, air pumps are installed on the upper surfaces of both sides of the hanging tube through bolts, the output end of the air pump is connected to an air pipe, and the air pipe is connected to the upper end of the air hole.

[0011] Furthermore, the air pump and the air hole are symmetrically arranged with respect to the central axis of the hanging tube, and the end surface structure of the air hole is an L-shaped structure, and the air hole is connected to the air pump through the air pipe.

[0012] Furthermore, support plates are fixed to the outer walls at both ends of the base, a screw is passed through the outer wall at the other end of the support plate, a clamp is sleeved on the outer wall of the screw, and a fixing nut is sleeved on the outer wall of one end of the screw away from the support plate.

[0013] Furthermore, the support plate, the screw rod and the clamping plate are symmetrically arranged with respect to the central axis of the base, and the clamping plate is threadedly connected to the support plate via a fixing nut and the screw rod.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The ash cleaning device for the coal-fired boiler is provided with a cleaning brush, which is driven by the telescopic end of the hydraulic rod and conveniently telescoped on both sides of the hanging tube, so that the cleaning brush can be adaptively adjusted to the inner wall of the boiler of different sizes and specifications according to needs, and the ash cleaning of the inner wall of the boiler is achieved by brushing in the vertical direction multiple times. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model in working state;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the suspension tube of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the utility model in a disassembled state of the tooth plate and the slide rail;

[0019] Figure 4 It is a structural schematic diagram of the utility model in which the support plate and the clamping plate are partially disassembled.

[0020] In the figure: 1. base; 2. hydraulic rod; 3. hanging tube; 4. motor; 5. driving gear; 6. slide rail; 7. tooth plate; 8. brush holder; 9. cleaning brush; 10. air hole; 11. air pump; 12. air pipe; 13. support plate; 14. screw; 15. splint; 16. fixing nut. DETAILED DESCRIPTION

[0021] 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.

[0022] The utility model provides an improved ash cleaning device for a coal-fired boiler. Figure 1-Figure 3 , including: a base 1, a hydraulic rod 2 is embedded in the middle of the base 1, a hanging tube 3 is fixed to the telescopic end of the hydraulic rod 2, and the hanging tube 3 is telescopically connected to the base 1 through the telescopic end of the hydraulic rod 2. A motor 4 is installed on the inner surface of the upper end of the hanging tube 3 through bolts, and a driving gear 5 is fixed to the output shaft of the motor 4, and the driving gear 5 is rotatably connected to the hanging tube 3 through the motor 4. The inner surfaces of both sides of the hanging tube 3 are fixed with slide rails 6 through connecting rods. The slide rails 6 are used to keep the tooth plate 7 moving in a directional manner under the drive of the driving gear 5 to prevent the tooth plate 7 from tilting and affecting the stability of the cleaning operation; air holes 10 are opened on the upper surfaces of both sides of the hanging tube 3, and the end surface structure of the air hole 10 is an L-shaped structure, and a tooth plate 7 is arranged on the inner side of the slide rail 6, and the tooth plate 7 is meshed with the outer walls of both sides of the driving gear 5, and the gear The plate 7 is slidably connected with the slide rail 6 through the output shaft of the driving gear 5 and the motor 4. A brush holder 8 is fixed to the end of the tooth plate 7 away from the driving gear 5, and the brush holder 8 penetrates to the outer wall of one side of the hanging tube 3. The brush holder 8 is used to install a cleaning brush 9, which is convenient for disassembly and maintenance of the cleaning brush 9; the outer wall of the other end of the brush holder 8 is connected with a cleaning brush 9 by bolts, and a detachable structure is formed between the cleaning brush 9 and the brush holder 8, and the cleaning brush 9 is telescopically connected to the hanging tube 3 through the tooth plate 7. The set cleaning brush 9 is convenient for brushing the inner wall of the boiler. Driven by the telescopic end of the hydraulic rod 2 and conveniently telescopic on both sides of the hanging tube 3, the cleaning brush 9 can be adaptively adjusted to the inner wall of the boiler of different sizes and specifications according to needs, and the dust on the inner wall of the boiler can be cleaned by brushing in the vertical direction for multiple times.

[0023] See also Figure 1 and Figure 2 , a dust cleaning device for a coal-fired boiler, comprising: air pumps 11 are installed on the upper surfaces of both sides of a hanging tube 3 by bolts, the air pump 11 and the air hole 10 are symmetrically arranged about the central axis of the hanging tube 3, the output end of the air pump 11 is connected with an air pipe 12, and the air pipe 12 is connected to the upper end of the air hole 10, and the air hole 10 is connected to the air pump 11 through the air pipe 12. The arranged air hole 10 is used to spray out the high-pressure gas delivered by the air pump 11 through the air pipe 12, so as to facilitate the strong dust removal of the inner wall of the boiler wiped by the cleaning brush 9, and prevent the dust from continuing to adhere to the inner wall of the boiler due to static electricity after brushing.

[0024] See also Figure 1 and Figure 4 A dust cleaning device for a coal-fired boiler comprises: support plates 13 are fixed to the outer walls of both ends of a base 1, a screw 14 is passed through the outer wall of the other end of the support plate 13, a clamping plate 15 is sleeved on the outer wall of the screw 14, the support plate 13, the screw 14 and the clamping plate 15 are symmetrically arranged about the central axis of the base 1, a fixing nut 16 is sleeved on the outer wall of one end of the screw 14 away from the support plate 13, and the clamping plate 15 is threadedly connected to the support plate 13 through the fixing nut 16 and the screw 14, the support plate 13 is used to place the base 1 at the upper port of the boiler, and the base 1 is kept stable by tightening the clamping plate 15 and the fixing nut 16 to prevent the base 1 from shaking during the cleaning operation and affecting the cleaning effect of the hanging tube 3.

[0025] Working principle: For this type of coal-fired boiler ash cleaning device, the staff first lifts the base 1 and the hanging tube 3 through the support plate 13, then inserts the hanging tube 3 into the boiler, and places the base 1 on the upper opening of the boiler through the support plate 13. The base 1 is clamped and fixed at the top of the boiler by sliding the clamping plate 15 on the screw 14, and then tightened with the fixing nut 16 so that the cleaning device will not shake during operation and affect stability. Subsequently, the telescopic end of the hydraulic rod 2 on the base 1 drives the hanging tube 3 to rise and fall inside the boiler through telescopic movement. The cleaning brushes 9 connected to the tooth plate 7 and the brush holder 8 on both sides of the hanging tube 3 can clean the ash on the inner wall of the boiler in the vertical direction. The extended length of the cleaning brush 9 can be adjusted by the driving shaft of the motor 4 and the driven driving gear 5. The tooth plate 7 maintains directional movement on the inner side of the slide rail 6, so that the cleaning brush 9 always remains horizontal and stable. When following the lifting and lowering of the hanging tube 3, the tooth plate 7 can be dynamically adjusted according to the curvature of the inner wall of the boiler, keeping the cleaning brush 9 close to the inner wall of the boiler for brushing, so that the cleaning effect of the device on boilers of different sizes is more ideal. Finally, the air pump 11 installed on the upper end of the hanging tube 3 can also generate high-pressure gas, which assists in cleaning the inner wall of the boiler through the air pipe 12 and the air hole 10 to prevent the accumulated dust from being adsorbed onto the inner wall of the boiler again due to static electricity, so as to facilitate the unified collection and treatment of the accumulated dust after cleaning.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ash cleaning device for a coal-fired boiler, characterized in that: include: A base (1), a hydraulic rod (2) is embedded in the middle of the base (1), a hanging tube (3) is fixed to the telescopic end of the hydraulic rod (2), a motor (4) is installed on the inner surface of the upper end of the hanging tube (3) by bolts, a driving gear (5) is fixed to the output shaft of the motor (4), slide rails (6) are fixed to the inner surfaces of both sides of the hanging tube (3) by connecting rods, and air holes (10) are opened on the upper surfaces of both sides of the hanging tube (3); A toothed plate (7) is arranged on the inner side of the slide rail (6), and the toothed plate (7) is meshed with the outer walls on both sides of the driving gear (5); a brush holder (8) is fixed to one end of the toothed plate (7) away from the driving gear (5), and the brush holder (8) penetrates to one side outer wall of the hanging tube (3); the outer wall of the other end of the brush holder (8) is connected to a cleaning brush (9) by bolts.

2. The ash cleaning device for a coal-fired boiler according to claim 1, characterized in that: The hanging cylinder (3) is telescopically connected to the base (1) through the telescopic end of the hydraulic rod (2), and the driving gear (5) is rotationally connected to the hanging cylinder (3) through the motor (4), and the toothed plate (7) is slidingly connected to the slide rail (6) through the output shaft of the driving gear (5) and the motor (4).

3. The ash cleaning device for a coal-fired boiler according to claim 1, characterized in that: The cleaning brush (9) and the brush holder (8) form a detachable structure, and the cleaning brush (9) is telescopically connected to the hanging tube (3) via the tooth plate (7).

4. The ash cleaning device for a coal-fired boiler according to claim 1, characterized in that: An air pump (11) is installed on both upper surfaces of the hanging tube (3) by bolts, and an output end of the air pump (11) is connected to an air pipe (12), and the air pipe (12) is connected to the upper end of the air hole (10).

5. The ash cleaning device for a coal-fired boiler according to claim 4, characterized in that: The air pump (11) and the air hole (10) are symmetrically arranged about the central axis of the hanging tube (3), and the end surface structure of the air hole (10) is an L-shaped structure. The air hole (10) is connected to the air pump (11) through the air pipe (12).

6. The ash cleaning device for a coal-fired boiler according to claim 1, characterized in that: Support plates (13) are fixed to the outer walls at both ends of the base (1), a screw rod (14) is passed through the outer wall at the other end of the support plate (13), a clamping plate (15) is sleeved on the outer wall of the screw rod (14), and a fixing nut (16) is sleeved on the outer wall of one end of the screw rod (14) away from the support plate (13).

7. The ash cleaning device for a coal-fired boiler according to claim 6, characterized in that: The support plate (13), the screw rod (14) and the clamping plate (15) are symmetrically arranged about the central axis of the base (1), and the clamping plate (15) is threadedly connected to the support plate (13) via a fixing nut (16) and the screw rod (14).

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