Bag-type dedusting ash collecting device of incineration system

Abstract

The utility model belongs to the technical field of ash collecting devices, and particularly discloses an incineration system cloth bag dedusting ash collecting device which comprises a supporting frame, a bag type dust collector and an ash receiving bin, a shell is fixedly connected to the supporting frame, a feeding port is formed in the shell, the ash discharging end of the bag type dust collector is in flange connection with the feeding port, a belt conveyor is arranged in the shell, and the bag type dust collector is arranged in the belt conveyor. A discharging port is formed in the bottom end of the shell, the ash falling end of the belt conveyor is located over the discharging port, the ash receiving bin is located under the discharging port, a cover plate is fixedly connected to the discharging port, and dustproof curtains are arranged on the peripheral side of the cover plate. The problems that in the using process of an existing bag-type dust collector ash receiving bin, the number of ash receiving bins is large, the process is tedious, and the workload is large are solved. According to the utility model, the ash discharging end of the bag type dust collector is connected to the conveyor, and the fly ash is collected through a single outlet, so that the fly ash transfer frequency is reduced, and the workshop workload is reduced; and the ash scraping structure is arranged in the shell of the conveyor, so that the hidden danger of ash stacking is effectively eliminated, the ash is timely cleaned, and the field environment of a workshop is favorably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ash collecting devices, in particular to a bag dust collecting device for an incineration system. Background Art

[0002] The waste incineration plant is mainly composed of the following subsystems, including the waste receiving and feeding system, the waste incineration system, the heat energy utilization system, the flue gas treatment system and the residue treatment system. Workflow: First, the garbage truck unloads the garbage into the garbage pit for storage, and then the garbage grab sends it to the feeder, and the feeder sends it to the rotary kiln and the secondary combustion chamber for incineration. After the garbage is fully burned, the ash discharged from the secondary combustion chamber falls into the water-sealed scraper slag remover for solid-liquid separation. The sorted ash is sent to the slag box by the conveyor belt and then transported out of the factory.

[0003] The flue gas discharged from the secondary combustion chamber enters the waste heat boiler. The heat in the flue gas heats up the water in the waste heat boiler and converts it into steam for use in other work sections. The flue gas from the waste heat boiler flows through the dry deacidification tower. The hydrochloric acid gas in the flue gas reacts fully with the lime slurry sprayed into the deacidification tower and is effectively removed. Then the flue gas enters the bag dust collector. The bag dust collector collects fine dust particles in the flue gas, which then automatically fall into the ash receiving bin through the ash lower end at the bottom of the bag dust collector. The flue gas that meets environmental protection standards coming out of the dust collector is discharged into the atmosphere through the chimney.

[0004] However, the existing bag-type dust collector needs to place multiple ash receiving bins because there are many ash ends under the bags. Therefore, when the ash receiving bins need to be transported and cleaned, the multiple ash receiving bins need to be transported and cleaned separately, which results in a large workload and low work efficiency. Utility Model Content

[0005] The utility model aims to provide a bag dust collection device for an incineration system to solve the problems of a large number of ash receiving bins, complicated process, heavy workload and low work efficiency during the use of the existing bag dust collector ash receiving bins.

[0006] To achieve the above-mentioned purpose, the basic scheme provided by the utility model is: a bag dust collection device for an incineration system, comprising a support frame, a bag dust collector and an ash receiving bin, a shell is fixedly connected to the support frame, a feed port is provided on the shell, the ash lowering end of the bag dust collector is flange-connected to the feed port, a belt conveyor is provided in the shell, a feed port is provided at the bottom end of the shell, the ash dropping end of the belt conveyor is located directly above the feed port, the ash receiving bin is located directly below the feed port, a cover plate is fixedly connected to the feed port, and dust curtains are provided on the surrounding sides of the cover plate.

[0007] The working principle of the utility model: when in use, first start the belt conveyor, and then the dust collected in the bag dust collector falls onto the conveyor belt of the belt conveyor through the ash lowering end. As the belt conveyor continues to rotate, the dust will also move with the conveyor belt. When the conveyor belt rotates to the end, the dust passes through the discharge port and falls into the ash receiving bin. As in the above steps, the dust continues to fall into the ash receiving bin; when the ash receiving bin needs to be cleaned, first close the belt conveyor, then lift the dust-proof curtain on the surrounding side, then control the forklift to insert the fork into the forklift hole, and then lift the ash receiving bin and move it to the cleaning place for cleaning. After cleaning, add an appropriate amount of water to the ash receiving bin, then move the ash receiving bin to its original position, and finally cover the dust-proof curtain on the surrounding side.

[0008] Beneficial effects: Connect the lower ash end of the bag filter to the belt conveyor, and then collect it through a single outlet, which reduces the number of fly ash transfers, improves work efficiency, and reduces workshop workload; then set up an ash scraping structure in the conveyor shell to effectively reduce the hidden dangers of falling and piling ash; set up a dust curtain on the cover to prevent dust from being raised in the ash receiving bin, effectively improving the workshop environment.

[0009] Option 2, which is a preferred option of the basic option, is a case of the belt conveyor provided with a scraping structure for cleaning fallen dust, and the scraping structure is located directly below the belt conveyor; providing the scraping structure in the belt conveyor is to facilitate cleaning of dust falling from the conveyor.

[0010] Option three is a preferred option of option two. The scraping structure includes two traction chains, a driving sprocket and a passive sprocket. Each traction chain is provided with a number of scrapers. Each traction chain is respectively meshed with the two ends of the driving sprocket and the passive sprocket. The two ends of the passive sprocket are connected to the housing bearings. A motor is provided on the support frame. One end of the driving sprocket extending outside the housing is fixedly connected to the motor, and the other end is connected to the housing bearing.

[0011] Option 4, which is a preferred option of the basic option, is that a lead block is provided at the free end of the dust-proof curtain; providing the lead block on the dust-proof curtain can prevent the dust-proof curtain from fluttering.

[0012] Option five is a preferred option of the basic option. The ash receiving bin and the belt conveyor shell are both provided with observation windows. Setting observation windows on the ash receiving bin and the conveyor is to facilitate observation of the ash falling in the ash receiving bin and the ash accumulation on the inner wall of the conveyor shell.

[0013] Option six, which is the preferred option of the basic option, is provided with a forklift hole on the ash receiving bin; the forklift hole is provided on the ash receiving bin to facilitate forklift transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of a bag dust collection device for an incineration system of the utility model;

[0015] Figure 2 It is a top view of a bag dust collection device for an incineration system of the utility model;

[0016] Figure 3 yes Figure 2 Sectional view at AA in the middle;

[0017] Figure 4 yes Figure 3 The enlarged view of point B in the middle;

[0018] Figure 5 It is a right side view of a bag dust collection device for an incineration system according to the utility model. DETAILED DESCRIPTION

[0019] The utility model is further described in detail below through specific implementation methods:

[0020] The figure marks in the drawings of the specification include: 1. ash discharge end; 2. belt conveyor; 21. feed port; 22. discharge port; 23. cover plate; 3. ash receiving bin; 31. forklift hole; 4. dust curtain; 41. lead block; 5. ash scraping structure; 51. traction chain; 52. driving sprocket; 53. driven sprocket; 54. motor; 55. scraper; 6. shell; 7. support frame; 8. observation window.

[0021] like Figures 1 to 5 As shown: a bag dust collection device for an incineration system, comprising a support frame 7 and an ash receiving bin 3, a shell 6 is fixedly connected to the support frame 7, a feed port 21 is provided on the shell 6, an ash lowering end 1 of the bag dust collector is flange-connected to the feed port 21, a belt conveyor 2 is rotatably connected in the shell 6, a feed port 22 is provided at the bottom end of the shell 6, an ash dropping end of the belt conveyor 2 is located directly above the feed port 22, and the ash receiving bin 3 is located directly below the feed port 22, a cover plate 23 is fixedly connected to the feed port 22, dust-proof curtains 4 are fixedly connected to the surrounding sides of the cover plate 23, a lead block 41 is fixedly connected to the free end of the dust-proof curtain 4, and observation windows 8 are provided on the ash receiving bin 3 and the shell 6 of the belt conveyor 2.

[0022] A scraping structure 5 for cleaning fallen dust is fixedly connected inside the shell 6. The scraping structure 5 is located directly below the belt conveyor 2. The scraping structure 5 includes two traction chains 51, a driving sprocket 52 and a passive sprocket 53. A number of scrapers 55 are fixedly connected to each traction chain 51. Each traction chain 51 is respectively meshed with the two ends of the driving sprocket 52 and the passive sprocket 53. The two ends of the passive sprocket 53 are connected to the bearings of the shell 6. A motor 54 is fixedly connected to the support frame 7. One end of the driving sprocket 52 extending outside the shell 6 is fixedly connected to the motor 54, and the other end is connected to the bearing of the shell 6.

[0023] The implementation method of this embodiment is as follows: when in use, first start the belt conveyor 2, and then the dust collected in the bag dust collector falls onto the conveyor belt of the belt conveyor 2 through the ash lowering end 1. As the belt conveyor 2 continues to rotate, the dust on the conveyor belt will also move. When the conveyor belt rotates to the ash falling end, the dust falls through the discharge port 22 and falls into the ash receiving bin 3. As in the above steps, the dust continues to fall into the ash receiving bin 3. When it is necessary to clean the ash receiving bin 3, first close the belt conveyor 2, then lift the dust-proof curtain 4 on the surrounding side, then control the forklift to insert the fork into the forklift hole 31, and then lift the ash receiving bin 3 and move it to the cleaning place for cleaning. After cleaning, add an appropriate amount of water to the ash receiving bin 3, then move the ash receiving bin 3 to its original position, and finally cover the dust-proof curtain 4 on the surrounding side.

[0024] When it is necessary to clean the dust on the inner side of the bottom end of the shell 6, first start the motor 54, then the motor 54 drives the driving sprocket 52 to rotate, the driving sprocket 52 drives the traction chain 51 to rotate, the traction chain 51 drives the passive sprocket 53 to rotate, as the traction chain 51 rotates, the scraper 55 on the traction chain 51 also rotates, the rotation of the scraper 55 makes the dust move toward the lower ash end of the belt conveyor 2 until the dust is pushed into the ash receiving bin 3 through the discharge port 22; when the dust cleaning is completed, turn off the motor 54.

[0025] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A bag dust collection device for an incineration system, characterized in that: The invention comprises a support frame (7), a bag dust collector and an ash receiving bin (3); the support frame (7) is fixedly connected to a shell (6); the shell (6) is provided with a feed port (21); the ash lowering end (1) of the bag dust collector is flange-connected to the feed port (21); a belt conveyor (2) is arranged in the shell (6); a feed port (22) is arranged at the bottom end of the shell (6); the ash lowering end of the belt conveyor (2) is located directly above the feed port (22); the ash receiving bin (3) is located directly below the feed port (22); a cover plate (23) is fixedly connected to the feed port (22); dust curtains (4) are arranged around the cover plate (23).

2. The bag dust collection device for an incineration system according to claim 1 is characterized in that: A dust scraping structure (5) for cleaning fallen dust is provided in the shell (6); the dust scraping structure (5) is located directly below the belt conveyor (2).

3. The bag dust collection device for an incineration system according to claim 2 is characterized in that: The scraping structure (5) comprises two traction chains (51), a driving sprocket (52) and a passive sprocket (53), each of the traction chains (51) is provided with a plurality of scrapers (55), each of the traction chains (51) is respectively meshed with the two ends of the driving sprocket (52) and the passive sprocket (53), the two ends of the passive sprocket (53) are connected to the inner wall bearings of the shell (6), the support frame (7) is provided with a motor (54), one end of the driving sprocket (52) extending outside the shell (6) is fixedly connected to the motor (54), and the other end is connected to the shell (6) bearing.

4. The bag dust collection device for an incineration system according to claim 1 is characterized in that: A lead block (41) is provided at the free end of the dustproof curtain (4).

5. The bag dust collection device for an incineration system according to claim 1 is characterized in that: The ash receiving bin (3) and the housing (6) of the belt conveyor (2) are both provided with observation windows (8).

6. The bag dust collection device for an incineration system according to claim 1 is characterized in that: The ash receiving bin (3) is provided with a forklift hole (31).

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