Ash removal equipment for coal-fired boiler maintenance

Abstract

The utility model provides ash removal equipment for coal-fired boiler maintenance, which comprises an ash removal box, a dust suction device arranged at the upper end of the ash removal box, a filter device arranged in the ash removal box, a driving device arranged at the bottom of the filter device and used for driving the filter device to move up and down in a reciprocating manner, and a plurality of springs fixedly connected to the opposite side of the filter device. A plurality of springs extend into a plurality of mounting holes formed in the opposite inner side walls of the ash removal box, when the short side of the pushing block makes contact with the filtering device, the filtering device is located at the lowest position, and when the motor drives the rotating rod to rotate and drives the pushing block to rotate through rotation of the rotating rod, the filtering device is located at the lowest position. When the pushing block rotates continuously, the long end of the pushing block makes contact with the bottom of the filtering device, and in the continuous rotating process of the pushing block, the filtering device is driven to reciprocate up and down again, so that shaking of the filtering device is achieved, the situation of dust accumulation is prevented, and the overall filtering effect is improved to a certain degree.

Description

Technical Field

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

[0002] A coal-fired boiler is a device that generates steam or hot water by exchanging heat energy released by coal combustion with water. During the maintenance of a coal-fired boiler, cleaning equipment for coal-fired boiler maintenance is usually used. Cleaning equipment for coal-fired boiler maintenance refers to equipment or systems specifically used to remove ash and dirt inside a coal-fired boiler.

[0003] The existing coal-fired boiler maintenance cleaning equipment usually includes a collection box, an ash suction body and a filter. During use, the ash suction body will inhale the flue gas generated by the coal-fired boiler, which contains dust, and the inhaled dust will be sucked into the interior of the collection box. When the dust enters the interior of the collection box, it will first pass through the filter to filter the inhaled flue gas, and the excess dust will enter the ash collecting frame provided at the bottom of the collection box. However, during the use of the existing equipment, dust will continue to accumulate above the filter. This part of the dust will affect the overall filtering effect after long-term accumulation. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a ash cleaning device for coal-fired boiler maintenance.

[0005] The utility model provides a coal-fired boiler maintenance cleaning device, comprising a cleaning box, a dust suction device is arranged at the upper end of the cleaning box, a filter device is arranged inside the cleaning box, a driving device is arranged at the bottom of the filter device to make the filter device reciprocate up and down, and a plurality of springs are fixedly connected to the opposite side of the filter device, and the plurality of springs extend into a plurality of mounting holes arranged on the opposite inner side walls of the cleaning box;

[0006] The driving device includes a motor, a rotating rod and a pushing block. The output end of the motor is fixedly connected to one end of the rotating rod, one end of the rotating rod extends to the interior of the dust cleaning box, and one end of the rotating rod close to the dust cleaning box is fixedly passed through the pushing block. The cross-section of the pushing block is set to an elliptical shape, and one side of the pushing block is in contact with the bottom of the filter device.

[0007] Preferably, partitions are provided on opposite sides of the filter device, and fixing plates are fixedly connected to opposite sides of two of the partitions, and the four fixing plates are connected to the dust cleaning box by bolts.

[0008] Preferably, the dust suction device includes a dust suction body and a filter frame, the filter frame is installed above the dust cleaning box, the dust suction body is arranged at the bottom of the filter frame, and the dust suction body is fixedly installed inside the dust cleaning box.

[0009] Preferably, two dust collecting frames are provided at the inner bottom of the dust cleaning box.

[0010] Preferably, the filtering device includes a transverse plate, two filter screens and two connecting plates, the two filter screens are arranged opposite to each other, the adjacent sides of the two filter screens are fixedly connected to the opposite sides of the transverse plate, the lowest position of the movement of the transverse plate is in contact with the bottom end of the partition, the two filter screens are inclined toward the transverse plate at the opposite edges of the two filter screens, the opposite sides of the two filter screens are fixedly connected to one side of the two connecting plates, the sides of the two connecting plates away from the two filter screens are respectively arranged in movable grooves provided on the opposite inner walls of the cleaning box, and the bottoms of the two connecting plates are respectively fixedly connected to the upper ends of multiple springs.

[0011] Preferably, opening and closing doors are installed on opposite sides of the dust cleaning box.

[0012] Preferably, a plurality of air outlets are provided on one side of the dust cleaning box.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] When the device is in use, a pushing block is provided, and the cross-section of the pushing block is set to be elliptical. When the shorter side of the pushing block contacts the filter device, the filter device is in the lowest position. When the motor drives the rotating rod to rotate, and the rotation of the rotating rod drives the pushing block to rotate, the longer end of the pushing block contacts the bottom of the filter device. During the continuous rotation of the pushing block, the filter device is driven to reciprocate up and down again, thereby shaking the filter device to prevent dust accumulation, thereby improving the overall filtering effect to a certain extent. In addition, by providing a spring, the spring will be continuously stretched and compressed during the shaking of the filter device. Under the elastic action of the spring, the filter device can obtain a larger displacement during the rising and falling process. The increased shaking amplitude can further improve the efficiency of removing dust attached to the filter net and reduce blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the overall structure of the coal-fired boiler maintenance cleaning equipment provided by the utility model;

[0016] Figure 2 A schematic diagram of the internal structure of the coal-fired boiler maintenance cleaning device provided by the utility model;

[0017] Figure 3A partial schematic diagram of the interior of a coal-fired boiler maintenance cleaning device provided by the utility model;

[0018] Figure 4 A schematic diagram of the installation of the partition provided by the utility model;

[0019] Figure 5 The state diagram of the filter device provided by the utility model Figure 1 ;

[0020] Figure 6 The state diagram of the filter device provided by the utility model Figure 2 ;

[0021] Figure 7 This is a schematic diagram of the gray collection frame provided by the utility model.

[0022] Numbers in the figure: 1. Ash cleaning box; 2. Partition; 3. Fixed plate; 4. Opening and closing door; 5. Ash collecting frame; 6. Air outlet; 7. Filter frame; 8. Ash suction body; 9. Connecting plate; 10. Filter screen; 11. Horizontal plate; 12. Rotating rod; 13. Pushing block; 14. Motor; 15. Spring; 16. Bolt. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with specific embodiments.

[0024] like Figure 1-Figure 7 As shown, a coal-fired boiler maintenance cleaning device comprises a cleaning box 1, a dust collecting device is arranged at the upper end of the cleaning box 1, a filter device is arranged inside the cleaning box 1, a driving device for making the filter device reciprocate up and down is arranged at the bottom of the filter device, and a plurality of springs 15 are fixedly connected to the opposite side of the filter device, and the plurality of springs 15 extend into a plurality of mounting holes arranged on the opposite inner side walls of the cleaning box 1;

[0025] The driving device includes a motor 14, a rotating rod 12 and a pushing block 13. The output end of the motor 14 is fixedly connected to one end of the rotating rod 12. One end of the rotating rod 12 extends to the inside of the dust cleaning box 1. One end of the rotating rod 12 close to the dust cleaning box 1 is fixedly passed through the pushing block 13. The cross section of the pushing block 13 is set to be elliptical. One side of the pushing block 13 is in contact with the bottom of the filter device.

[0026] In the specific use process, by setting the push block 13, the cross section of the push block 13 is set to be elliptical. When the shorter side of the push block 13 contacts the filter device, the filter device is in the lowest position. When the motor 14 drives the rotating rod 12 to rotate, and the rotation of the rotating rod 12 drives the push block 13 to rotate, the longer end of the push block 13 contacts the bottom of the filter device. In the process of continuous rotation of the push block 13, the filter device is driven to reciprocate up and down again, so as to shake the filter device and prevent dust accumulation, thereby improving the overall filtering effect to a certain extent.

[0027] Furthermore, by providing the spring 15, the spring 15 is continuously stretched and compressed during the shaking process of the filter device. Under the elastic action of the spring 15, the filter device can obtain a larger displacement during the rising and falling process. The increased shaking amplitude further improves the efficiency of removing dust attached to the filter screen 10 and reduces clogging.

[0028] Partitions 2 are provided on opposite sides of the filter device, and fixed plates 3 are fixedly connected to opposite sides of the two partitions 2. The four fixed plates 3 are connected to the ash cleaning box 1 by bolts 16. The filter device includes a transverse plate 11, two filter screens 10 and two connecting plates 9. The two filter screens 10 are arranged opposite to each other, and the adjacent sides of the two filter screens 10 are fixedly connected to the opposite sides of the transverse plate 11 respectively. The lowest position of the movement of the transverse plate 11 fits with the bottom end of the partition 2. The two filter screens 10 are inclined toward the direction of the transverse plate 11 from the opposite edges of the two filter screens 10. The opposite sides of the two filter screens 10 are fixedly connected to one side of the two connecting plates 9 respectively. The sides of the two connecting plates 9 away from the two filter screens 10 are respectively arranged in movable grooves arranged on the opposite inner side walls of the ash cleaning box 1, and the bottoms of the two connecting plates 9 are respectively fixedly connected to the upper ends of multiple springs 15;

[0029] In the specific use process, by setting two filter screens 10, both filter screens 10 are inclined toward the direction of the horizontal plate 11 at the opposite edges of the two filter screens 10, the sucked dust can be filtered through the filter screens 10, and the inclined setting method can guide part of the dust toward the direction of the horizontal plate 11, which is convenient for subsequent collection;

[0030] When dust needs to be removed, the bolts 16 on the fixing plate 3 are removed, and the partition plate 2 can be removed after the fixing plate 3 is removed, and the dust accumulated on the horizontal plate 11 and the two filters 10 can be cleaned out;

[0031] The dust collecting device includes a dust collecting body 8 and a filter frame 7. The filter frame 7 is installed above the dust cleaning box 1. The dust collecting body 8 is arranged at the bottom of the filter frame 7. The dust collecting body 8 is fixedly installed inside the dust cleaning box 1. Two dust collecting frames 5 are arranged at the inner bottom of the dust cleaning box 1. Opening and closing doors 4 are installed on opposite sides of the dust cleaning box 1. A plurality of air outlets 6 are arranged on one side of the dust cleaning box 1.

[0032] The dust suction body 8 is specifically a 4-72-C medium-pressure industrial fan.

[0033] The working principle provided by the utility model is as follows: during the specific use of the device, when the shorter side of the push block 13 contacts the cross plate 11, the cross plate 11 is in the lowest position, and when the motor 14 drives the rotating rod 12 to rotate, and the rotation of the rotating rod 12 drives the push block 13 to rotate, the longer end of the push block 13 contacts the bottom of the cross plate 11, and in the process of continuous rotation of the push block 13, the cross plate 11 is driven to reciprocate up and down again, so as to shake the cross plate 11 and complete the shaking of the two filters 10, thereby preventing dust accumulation and improving the overall filtering effect to a certain extent.

Claims

1. A coal-fired boiler maintenance cleaning device, characterized in that: The invention comprises a dust cleaning box (1), wherein a dust collecting device is arranged at the upper end of the dust cleaning box (1), a filtering device is also arranged inside the dust cleaning box (1), a driving device for causing the filtering device to reciprocate up and down is arranged at the bottom of the filtering device, and a plurality of springs (15) are fixedly connected to the opposite side of the filtering device, and the plurality of springs (15) extend into a plurality of mounting holes arranged on the opposite inner side walls of the dust cleaning box (1); The driving device comprises a motor (14), a rotating rod (12) and a pushing block (13); the output end of the motor (14) is fixedly connected to one end of the rotating rod (12); one end of the rotating rod (12) extends into the interior of the dust cleaning box (1); one end of the rotating rod (12) close to the dust cleaning box (1) is fixedly passed through the pushing block (13); the cross section of the pushing block (13) is arranged to be elliptical; one side of the pushing block (13) is in contact with the bottom of the filtering device.

2. The coal-fired boiler maintenance cleaning equipment according to claim 1, characterized in that: Partition plates (2) are provided on opposite sides of the filter device, and fixing plates (3) are fixedly connected to opposite sides of two partition plates (2), and the four fixing plates (3) are connected to the dust cleaning box (1) via bolts (16).

3. The coal-fired boiler maintenance cleaning equipment according to claim 2, characterized in that: The dust suction device comprises a dust suction body (8) and a filter frame (7); the filter frame (7) is installed above the dust cleaning box (1); the dust suction body (8) is arranged at the bottom of the filter frame (7); and the dust suction body (8) is fixedly installed inside the dust cleaning box (1).

4. The coal-fired boiler maintenance cleaning equipment according to claim 3, characterized in that: Two dust collecting frames (5) are arranged at the inner bottom of the dust cleaning box (1).

5. The coal-fired boiler maintenance cleaning equipment according to claim 4, characterized in that: The filtering device comprises a transverse plate (11), two filter screens (10) and two connecting plates (9); the two filter screens (10) are arranged opposite to each other; adjacent sides of the two filter screens (10) are respectively fixedly connected to opposite sides of the transverse plate (11); the lowest position of the movement of the transverse plate (11) is in contact with the bottom end of the partition plate (2); the two filter screens (10) are arranged at an angle toward the transverse plate (11) from opposite edges of the two filter screens (10); opposite sides of the two filter screens (10) are respectively fixedly connected to one side of the two connecting plates (9); the sides of the two connecting plates (9) away from the two filter screens (10) are respectively arranged in movable grooves arranged on opposite inner side walls of the dust cleaning box (1); and the bottoms of the two connecting plates (9) are respectively fixedly connected to the upper ends of a plurality of springs (15).

6. The coal-fired boiler maintenance cleaning equipment according to claim 5, characterized in that: Opposite sides of the dust cleaning box (1) are both equipped with opening and closing doors (4).

7. The coal-fired boiler maintenance cleaning equipment according to claim 6, characterized in that: A plurality of air outlets (6) are provided on one side of the dust cleaning box (1).

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