A garbage incineration flue gas treatment device

Abstract

The present invention discloses a garbage incineration flue gas treatment device, which comprises a box body, an upper partition board, a plurality of filtering mechanisms and a partitioning mechanism. An upper partition board is arranged inside the box body, filtering mechanisms are arranged on the upper partition board, and a partitioning mechanism is arranged inside the box body for separately isolating any plurality of filtering mechanisms from the flue gas. Compared with the prior art, it can improve the filtering efficiency of filter bags, extend the interval time between ash cleaning cycles, and reduce the use cost.

Description

Technical Field

[0001] The present invention relates to the technical field of flue gas treatment, and particularly to a waste incineration flue gas treatment device. Background Art

[0002] Waste incineration technology has the advantages of high degree of reduction, fast processing speed, small floor area, waste heat available for power generation, and can kill all pathogenic microorganisms and parasite eggs, etc. It is one of the most thorough methods for waste reduction and harmless treatment at present and has been widely applied.

[0003] However, a large amount of flue gas is generated during the incineration process of waste. Before this part of the flue gas is discharged into the atmosphere, the flue gas needs to be treated, and the treatment process includes the removal and collection of fly ash in the flue gas.

[0004] A filtering device for purifying waste incineration flue gas with the application (patent) number: CN201910038159.5, which includes a middle box body, an upper box body, a cover and an ash hopper. The upper box body and the ash hopper are respectively fixedly connected to the upper and lower ends of the middle box body. The cover is arranged on the top of the upper box body. A discharger is arranged at the bottom of the ash hopper. A flue gas inlet is tangentially arranged on the middle side wall of the middle box body. A purified air outlet is arranged on the side wall of the upper box body. A filtering device is arranged in the middle box body. A dust cleaning device cooperating with the filtering device is arranged in the upper box body. The filtering device includes an annular supporting plate fixedly arranged on the inner wall of the middle box body. An upper support is arranged on the supporting plate. Filter bag holes are uniformly distributed along the ring on the upper support. Filtering cloth bags are inserted into the filter bag holes. The lower ends of the filtering cloth bags are fixedly matched with the lower supports arranged in a ring on the inner wall of the middle box body. It uses the reverse blowing of a fan to clean the dust accumulated on the surface of the filter bags. The gas is distributed by the central air duct to the jet nozzles on two rotating arms, and the dust accumulated on the surface of the filtering cloth bags can be shaken off by spraying gas into the filter bag mouths, and the jet nozzles are rotated by a reduction motor to clean all the filtering cloth bags in turn. The dust cleaning efficiency is high. However, it is inevitable that the dust accumulated on the surface of the filter bags will return to the flue gas again, flow to other filter bags along with the flue gas, and be filtered again by the corresponding filter bags, resulting in low filtering efficiency of the corresponding filter bags, shortening the interval time of the dust cleaning cycle, and increasing the use cost.

[0005] A negative pressure external filtration low-pressure pulse bag filter with the application (patent) number: CN202310352470.3 and a pulse bag filter with the application (patent) number: CN201911349885.5 both have the above technical problems. Summary of the Invention

[0006] The purpose of the present invention is to solve the problems in the prior art, and propose a waste incineration flue gas treatment device, which can improve the filtering efficiency of the filter bags, extend the interval time of the dust cleaning cycle, and reduce the use cost.

[0007] To achieve the above object, the present invention provides a waste incineration flue gas treatment device, comprising a box body, an upper partition board, a plurality of filtering mechanisms and a partitioning mechanism. An upper partition board is arranged inside the box body. The filtering mechanisms are arranged on the upper partition board and form a plurality of filtering areas. A partitioning mechanism is arranged inside the box body for separately isolating the filtering mechanisms in any filtering area from the flue gas.

[0008] Preferably, the filtering mechanisms are arranged in several rows on the upper partition board, and the partitioning mechanism is used for separately isolating at least any row of filtering mechanisms from the flue gas.

[0009] Preferably, the partitioning mechanism comprises a moving driving mechanism, a lifting driving mechanism and a spacer sleeve. A lifting driving mechanism is arranged on the moving driving mechanism, and a spacer sleeve is arranged on the lifting driving mechanism.

[0010] Preferably, the moving driving mechanism comprises a lower partition board and an electric linear guide rail slider I arranged on the lower partition board. An air inlet is arranged on the box body between the lower partition board and the filtering mechanisms. A dust collection hopper is arranged on the lower partition board. A dust discharge port is arranged at the lower end of the dust collection hopper, and an automatic valve is arranged on the dust discharge port.

[0011] Preferably, a hopper communicating with the lower end of the spacer sleeve is arranged on the electric linear guide rail slider I, and the lower end of the hopper communicates with the inner space of the box body below the dust collection hopper through a connecting hose I.

[0012] Preferably, the lifting driving mechanism comprises an electric linear guide rail slider II. A docking port is arranged on the electric linear guide rail slider II, and the lower end of the docking port communicates with the upper end of the spacer sleeve.

[0013] Preferably, a sealing ring is arranged at the upper end of the docking port.

[0014] Preferably, an exhaust filtering mechanism is arranged on the box body below the lower partition board. The exhaust filtering mechanism comprises a pipe body, a filtering sleeve, a piston ring, a piston body, a plurality of sliding rods, an exhaust port and a positioning ring. A piston ring, a piston body and a positioning ring are arranged inside the pipe body. The positioning ring is located at the lower end of the piston body. A protective sleeve penetrating through the positioning ring is arranged on the piston body. Through holes are arranged on both the positioning ring and the protective sleeve. A filtering sleeve is arranged between the piston ring and the piston body. Sliding rods penetrating through the positioning ring and the piston body are arranged at the upper end of the piston ring. Attractors are arranged at the upper ends of the sliding rods. An electromagnet cooperating with the attractor is arranged at the upper end of the pipe body. An exhaust port located above the piston body is arranged on one side of the pipe body.

[0015] Preferably, the lower end of the box body is in a conical shape, a dust discharge port is arranged at the lower end of the box body, and a dust discharge valve is arranged on the dust discharge port.

[0016] Preferably, an anti-blowing mechanism is provided at the upper end of the box body. The anti-blowing mechanism includes a cover body, a plurality of cylinders, a main pipe, a plurality of blowing pipes, a plurality of caps, a plurality of branch pipes, a plurality of connecting hoses II, and a clean air outlet. A main pipe communicated with the air supply pipe is arranged in the cover body. Cylinders are sequentially arranged on the cover body. Branch pipes are arranged at the driving ends of the cylinders. Blowing pipes arranged in a row are arranged on each branch pipe. The blowing pipes on the same branch pipe correspond to the corresponding rows of filtering mechanisms one by one. Caps are arranged on the blowing pipes. Connecting hoses II are arranged at one ends of the branch pipes. The connecting hoses II are communicated with the main pipe through electromagnetic valves. A clean air outlet is arranged on the cover body.

[0017] The beneficial effects of the present invention: By arranging a partitioning mechanism in the box body to separately partition any several filtering mechanisms from the flue gas, when the corresponding several filtering mechanisms are subjected to anti-blowing and dust cleaning, the blown dust will not be mixed with the flue gas and re-filtered by other filtering mechanisms and adhered to the corresponding filtering mechanisms. Compared with the prior art, the filtering efficiency of the filter bag can be improved, the interval time of the dust cleaning cycle can be prolonged, and the use cost can be reduced.

[0018] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the drawings. Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of a garbage incineration flue gas treatment device of the present invention;

[0020] Figure 2 is a schematic structural diagram of the partitioning mechanism;

[0021] Figure 3 is a schematic structural diagram of the exhaust gas filtering mechanism.

[0022] In the figure: 1 - box body, 2 - upper partition board, 3 - filtering mechanism, 4 - partitioning mechanism, 5 - exhaust gas filtering mechanism, 6 - dust discharge port, 7 - dust discharge valve, 8 - anti-blowing mechanism, 41 - moving driving mechanism, 42 - lifting driving mechanism, 43 - spacer sleeve, 44 - hopper, 45 - connecting hose I, 51 - pipe body, 52 - filter sleeve, 53 - piston ring, 54 - piston body, 55 - ejector rod, 56 - exhaust port, 57 - positioning ring, 58 - attracted body, 59 - electromagnet, 510 - protective sleeve, 511 - through hole, 81 - cover body, 82 - cylinder, 83 - main pipe, 84 - blowing pipe, 85 - cap, 86 - branch pipe, 87 - connecting hose II, 88 - clean air outlet, 89 - electromagnetic valve, 411 - lower partition board, 412 - electric linear guide rail slide table I, 413 - dust collection hopper, 414 - dust discharge port, 415 - automatic valve, 421 - electric linear guide rail slide table II, 422 - docking port, 423 - sealing ring. Detailed Embodiments

[0023] Refer to Figure 1 、 Figure 2 and Figure 3 For a waste incineration flue gas treatment device of the present invention, it includes a box body 1, an upper partition plate 2, a plurality of filtering mechanisms 3 and a partitioning mechanism 4. An upper partition plate 2 is provided inside the box body 1. The filtering mechanisms 3 are arranged on the upper partition plate 2 and form a plurality of filtering areas. A partitioning mechanism 4 is provided inside the box body 1 for separately isolating the filtering mechanisms 3 in any filtering area from the flue gas.

[0024] The filtering mechanisms 3 are arranged in several rows on the upper partition plate 2. The partitioning mechanism 4 is used to separately isolate at least any row of filtering mechanisms 3 from the flue gas.

[0025] The partitioning mechanism 4 includes a moving driving mechanism 41, a lifting driving mechanism 42 and a spacer sleeve 43. A lifting driving mechanism 42 is provided on the moving driving mechanism 41, and a spacer sleeve 43 is provided on the lifting driving mechanism 42.

[0026] The moving driving mechanism 41 includes a lower partition plate 411 and an electric linear guideway slide I 412 arranged on the lower partition plate 411. An air inlet is provided on the box body 1 between the lower partition plate 411 and the filtering mechanism 3. A dust collecting hopper 413 is provided on the lower partition plate 411. A dust discharging port 414 is provided at the lower end of the dust collecting hopper 413, and an automatic valve 415 is provided on the dust discharging port 414.

[0027] A hopper 44 communicating with the lower end of the spacer sleeve 43 is provided on the electric linear guideway slide I 412. The lower end of the hopper 44 is communicated with the internal space of the box body 1 below the dust collecting hopper 413 through a connecting hose I 45.

[0028] The lifting driving mechanism 42 includes an electric linear guideway slide II 421. A docking port 422 is provided on the electric linear guideway slide II 421, and the lower end of the docking port 422 is communicated with the upper end of the spacer sleeve 43.

[0029] A sealing ring 423 is provided at the upper end of the docking port 422.

[0030] An exhaust filtering mechanism 5 is provided on the box body 1 below the lower partition plate 411. The exhaust filtering mechanism 5 includes a pipe body 51, a filtering sleeve 52, a piston ring 53, a piston body 54, a plurality of sliding rods 55, an exhaust port 56 and a positioning ring 57. A piston ring 53, a piston body 54 and a positioning ring 57 are provided in the pipe body 51. The positioning ring 57 is located at the lower end of the piston body 54. A protective sleeve 510 is provided on the piston body 54 and penetrates through the positioning ring 57. Through holes 511 are provided on both the positioning ring 57 and the protective sleeve 510. A filtering sleeve 52 is provided between the piston ring 53 and the piston body 54. The upper end of the piston ring 53 is provided with sliding rods 55 that penetrate through the positioning ring 57 and the piston body 54. Attracted bodies 58 are provided at the upper ends of the sliding rods 55. An electromagnet 59 that cooperates with the attracted bodies 58 is provided at the upper end of the pipe body 51. An exhaust port 56 is provided on one side of the pipe body 51 above the piston body 54.

[0031] The lower end of the box body 1 is in a conical shape. A dust discharge port 6 is provided at the lower end of the box body 1. A dust discharge valve 7 is provided on the dust discharge port 6.

[0032] An anti-blowing mechanism 8 is provided at the upper end of the box body 1. The anti-blowing mechanism 8 includes a cover body 81, a plurality of cylinders 82, a main pipe 83, a plurality of blowing pipes 84, a plurality of sealing caps 85, a plurality of branch pipes 86, a plurality of connecting hoses II 87 and a clean air outlet 88. A main pipe 83 communicated with the air supply pipe is provided in the cover body 81. Cylinders 82 are sequentially provided on the cover body 81. Branch pipes 86 are provided at the driving ends of the cylinders 82. Blowing pipes 84 arranged in a row are provided on the branch pipes 86. The blowing pipes 84 on the same branch pipe 86 correspond to the corresponding rows of filtering mechanisms 3 one by one. Sealing caps 85 are provided on the blowing pipes 84. Connecting hoses II 87 are provided at one ends of the branch pipes 86. The connecting hoses II 87 are all communicated with the main pipe 83 through solenoid valves 89. A clean air outlet 88 is provided on the cover body 81.

[0033] The filtering mechanism 3 includes a filter bag and an inner cage supported in the filter bag.

[0034] The working process of the present invention:

[0035] During the operation of a waste incineration flue gas treatment device of the present invention, when the dust cleaning of one row of the filtering mechanism 3 is required, the mobile driving mechanism 41 is started to drive the lifting driving mechanism 42 to move. The lifting driving mechanism 42 drives the docking port 422 to move below the corresponding row of the filtering mechanism 3. Then, the lifting driving mechanism 42 is started to drive the docking port 422 to rise, so that its sealing ring 423 is tightly pressed against the upper partition plate 2, and the stretched and wrinkled spacer sleeve 43 of the docking port 422 is extended. Then, the corresponding cylinder 82 is started to drive the sub-pipe 86 thereon to move downward. The sub-pipe 86 drives the blowpipe 84 thereon to extend into the corresponding filtering mechanism 3 until the cover 85 covers the output port of the corresponding filtering mechanism 3. Then, the corresponding solenoid valve 89 is opened. At this time, the compressed air sequentially passes through the main pipe 83, the corresponding solenoid valve 89, the connecting hose II 87, the sub-pipe 86 and the blowpipe 84, and finally enters the filtering mechanism 3 to perform reverse blowing dust cleaning on the corresponding filter bag. The cleaned dust sequentially passes through the docking port 422, the spacer sleeve 43, the hopper 44 and the connecting hose I 45 along with the compressed air, and finally enters the space below the dust collecting hopper 413. Then, the compressed air is filtered and discharged through the exhaust filtering mechanism 5. The exhaust filtering mechanism 5 can quickly discharge the compressed air, so that the compressed air mixed with dust in the spacer sleeve 43 can quickly flow out, improving the reverse blowing efficiency and effect.

[0036] When the exhaust filtering mechanism 5 is working, the compressed air mixed with dust enters the space below the dust collecting hopper 413, and then sequentially passes through the piston ring 53, the filter sleeve 52 and the through hole 511, and then pushes the piston body 54 to move upward. The piston body 54 drives the piston ring 53 to move upward through the cooperation of the attracted body 58 and the slide rod 55. When the attracted body 58 approaches the electromagnet 59, it is attracted and fixed by the electromagnet 59. When the piston body 54 moves upward through the exhaust port 56, the filtered compressed air is discharged from the exhaust port 56. At this time, the piston body 54 stops moving upward. When the dust cleaning of the filtering mechanism 3 is completed, the piston body 54 has no effect of compressed air and falls by its own weight and rests on the positioning ring 57 (at this time, the filter sleeve 52 is in a wrinkled state). Then, the electromagnet 59 is stopped. At this time, the piston ring 53 falls by its own weight and pulls the filter sleeve 52 to be quickly tightened, realizing the dust cleaning of the filter sleeve 52.

[0037] The above embodiments are descriptions of the present invention, not limitations of the present invention. Any simple transformation of the present invention belongs to the protection scope of the present invention.

Claims

1. A waste incineration flue gas treatment device, characterized in that: The invention comprises a box body (1), an upper partition (2), a plurality of filter mechanisms (3) and a partition mechanism (4), wherein the box body (1) is provided with an upper partition (2), the filter mechanism (3) is arranged on the upper partition (2) and forms a plurality of filter areas, the box body (1) is provided with a partition mechanism (4) for isolating the filter mechanism (3) in any filter area from the smoke, the partition mechanism (4) comprises a moving drive mechanism (41), a lifting drive mechanism (42) and a spacer (43), the moving drive mechanism (41) is provided with a lifting drive mechanism (43) and a spacer (43). 2), the lifting drive mechanism (42) is provided with a spacer sleeve (43), the moving drive mechanism (41) comprises a lower partition (411) and an electric linear guide slide I (412) provided on the lower partition (411), a smoke inlet is provided on the box body (1) between the lower partition (411) and the filtering mechanism (3), a dust collecting hopper (413) is provided on the lower partition (411), a dust discharge port (414) is provided at the lower end of the dust collecting hopper (413), and an automatic valve (415) is provided on the dust discharge port (414), the lower partition (41 1) An exhaust filter mechanism (5) is provided on the box body (1) below, the exhaust filter mechanism (5) comprising a tube body (51), a filter sleeve (52), a piston ring (53), a piston body (54), a plurality of slide bars (55), an exhaust port (56) and a positioning ring (57). The tube body (51) is provided with a piston ring (53), a piston body (54) and a positioning ring (57). The positioning ring (57) is located at the lower end of the piston body (54). The piston body (54) is provided with a protective sleeve (510) which is inserted into the positioning ring (57). The positioning ring (57) and the protective sleeve (510) are both provided with a through hole (511); a filter sleeve (52) is provided between the piston ring (53) and the piston body (54); a slide rod (55) passing through the positioning ring (57) and the piston body (54) is provided at the upper end of the piston ring (53); an attracted body (58) is provided at the upper end of the slide rod (55); an electromagnet (59) cooperating with the attracted body (58) is provided at the upper end of the tube body (51); and an exhaust port (56) located above the piston body (54) is provided on one side of the tube body (51).

2. A waste incineration flue gas treatment device as claimed in claim 1, characterized in that: The filtering mechanisms (3) are arranged in a plurality of rows on the upper partition plate (2), and the partition mechanism (4) is used to separately separate the filtering mechanisms (3) in at least any one row from the smoke.

3. A waste incineration flue gas treatment device as claimed in claim 1, characterized in that: The electric linear guide slide I (412) is provided with a hopper (44) which is connected to the lower end of the spacer sleeve (43); the lower end of the hopper (44) is connected to the internal space of the box body (1) below the dust collecting hopper (413) through a connecting hose I (45).

4. A waste incineration flue gas treatment device as claimed in claim 1, characterized in that: The lifting drive mechanism (42) comprises an electric linear guide slide II (421), and a docking port (422) is provided on the electric linear guide slide II (421), wherein the lower end of the docking port (422) is connected to the upper end of the spacer sleeve (43).

5. A waste incineration flue gas treatment device as claimed in claim 4, characterized in that: A sealing ring (423) is provided at the upper end of the docking port (422).

6. A waste incineration flue gas treatment device as claimed in claim 1, characterized in that: The lower end of the box body (1) is in a conical shape. The lower end of the box body (1) is provided with a dust exhaust port (6), and the dust exhaust port (6) is provided with a dust exhaust valve (7).

7. A waste incineration flue gas treatment device according to any one of claims 1 to 6, characterized in that: The upper end of the box body (1) is provided with a back-blowing mechanism (8), the back-blowing mechanism (8) comprising a cover body (81), a plurality of cylinders (82), a main pipe (83), a plurality of blowing pipes (84), a plurality of sealing covers (85), a plurality of branch pipes (86), a plurality of connecting hoses II (87) and a clean air outlet (88), the cover body (81) is provided with a main pipe (83) connected to the air supply pipe, the cover body (81) is provided with cylinders (82) arranged in sequence, and the driving ends of the cylinders (82) are all provided with There are branch pipes (86), each of which is provided with a spray pipe (84) arranged in a row, the spray pipes (84) on the same branch pipe (86) correspond one to one with the filter mechanisms (3) in the corresponding row, each of which is provided with a sealing cover (85), each of which is provided with a connecting hose II (87) at one end of each branch pipe (86), each of which is connected to the main pipe (83) via a solenoid valve (89), and a clean air outlet (88) is provided on the cover body (81).

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