Waste incineration flue gas treatment device

Abstract

The invention discloses a waste incineration flue gas treatment device which comprises a box body, an upper partition plate, a plurality of filtering mechanisms and a separation mechanism, the upper partition plate is arranged in the box body, the filtering mechanisms are arranged on the upper partition plate, and the separation mechanism is arranged in the box body and used for independently separating any multiple filtering mechanisms from flue gas. The filter efficiency of the filter bag can be improved, the interval time of ash removal periods is prolonged, and the use cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of flue gas treatment, in particular to a device for treating flue gas from garbage incineration. Background Art

[0002] Waste incineration technology has the advantages of high reduction, fast processing speed, small footprint, waste heat for power generation and the ability to kill all pathogenic microorganisms and parasite eggs. It is currently one of the most thorough methods for waste reduction and harmlessness and has been widely used.

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

[0004] The application (patent) number is: CN201910038159.5, a filtering device for purifying flue gas from garbage incineration, 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, and a cleaning device cooperating with the filtering device is arranged in the upper box body, the filtering device includes a ring-shaped support plate fixedly arranged on the inner wall of the middle box body, an upper bracket is arranged on the support plate, and the upper bracket is evenly distributed along the ring The filter bag hole is provided with a filter bag inserted in the filter bag hole. The lower end of the filter bag is fixedly matched with the lower bracket arranged in a ring on the inner wall of the middle box body. The fan adopts the reverse blowing method to clean the dust on the surface of the filter bag. The central air duct is distributed to the air nozzles on the two rotating arms. The gas is sprayed from the filter bag port to shake off the dust on the surface of the filter bag. The air nozzle is cleaned in turn by the rotation of the reduction motor. The cleaning efficiency is high. However, the dust on the surface of the filter bag will inevitably return to the flue gas. As the flue gas flows to other filter bags, it is filtered again through the corresponding filter bag, resulting in low filtration efficiency of the corresponding filter bag, shortening the interval time of the cleaning cycle, and increasing the use cost.

[0005] The above-mentioned technical problems exist in a negative pressure external filtration low-pressure pulse bag dust collector with application (patent) number: CN202310352470.3 and a pulse bag dust collector with application (patent) number: CN201911349885.5. Summary of the invention

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

[0007] To achieve the above-mentioned purpose, the present invention proposes a waste incineration flue gas treatment device, including a box body, an upper partition, a plurality of filtering mechanisms and a partition mechanism, wherein the box body is provided with an upper partition, the filtering mechanism is arranged on the upper partition and constitutes a plurality of filtering areas, and the box body is provided with a partition mechanism for separating the filtering mechanism in any filtering area from the flue gas separately.

[0008] Preferably, the filtering mechanisms are arranged in a plurality of rows on the upper partition plate, and the partition mechanism is used to separate the filtering mechanisms in at least any one row from the smoke.

[0009] Preferably, the separation mechanism comprises a moving drive mechanism, a lifting drive mechanism and a spacer sleeve, the moving drive mechanism is provided with a lifting drive mechanism, and the lifting drive mechanism is provided with a spacer sleeve.

[0010] Preferably, the mobile driving mechanism includes a lower partition and an electric linear guide slide I arranged on the lower partition, a smoke inlet is provided on the box body between the lower partition and the filtering mechanism, a dust hopper is provided on the lower partition, a dust discharge port is provided at the lower end of the dust hopper, and an automatic valve is provided on the dust discharge port.

[0011] Preferably, the electric linear guide slide 1 is provided with a hopper connected to the lower end of the spacer sleeve, and the lower end of the hopper is connected to the internal space of the box below the dust collecting hopper through a connecting hose 1.

[0012] Preferably, the lifting drive mechanism comprises an electric linear guide slide II, and a docking port is provided on the electric linear guide slide II, and the lower end of the docking port is connected to the upper end of the spacer sleeve.

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

[0014] Preferably, an exhaust filtering mechanism is provided on the box body below the lower partition, and the exhaust filtering mechanism comprises a tube body, a filter sleeve, a piston ring, a piston body, a plurality of sliding rods, an exhaust port and a positioning ring. The tube body is provided with a piston ring, a piston body and a positioning ring. The positioning ring is located at the lower end of the piston body. The piston body is provided with a protective sleeve passing through the positioning ring. The positioning ring and the protective sleeve are both provided with through holes. A filter sleeve is provided between the piston ring and the piston body. The upper end of the piston ring is provided with a sliding rod passing through the positioning ring and the piston body. The upper end of the sliding rod is provided with an attracted body. The upper end of the tube body is provided with an electromagnet cooperating with the attracted body, and one side of the tube body is provided with an exhaust port located above the piston body.

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

[0016] Preferably, a back-blowing mechanism is provided at the upper end of the box body, and the back-blowing mechanism comprises a cover body, a plurality of cylinders, a main pipe, a plurality of blowing pipes, a plurality of sealing covers, a plurality of branch pipes, a plurality of connecting hoses II and a clean air outlet. A main pipe connected to the air supply pipe is provided in the cover body, cylinders arranged in sequence are provided on the cover body, branch pipes are provided at the driving ends of the cylinders, blowing pipes arranged in a row are provided on the branch pipes, and the blowing pipes on the same branch pipe correspond one-to-one to the filtering mechanisms in the corresponding row, sealing covers are provided on the blowing pipes, a connecting hose II is provided at one end of the branch pipe, and the connecting hose II is connected to the main pipe through an electromagnetic valve, and a clean air outlet is provided on the cover body.

[0017] Beneficial effects of the present invention: The present invention provides a partition mechanism in the box body to separate any number of filter mechanisms from the flue gas. In this way, when the corresponding filter mechanisms are backblown for cleaning, the dust blown off will not be mixed with the flue gas and will be filtered out again by other filter mechanisms and attached to the corresponding filter mechanisms. Compared with the prior art, the filtering efficiency of the filter bags can be improved, the interval time of the cleaning cycle can be extended, 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 accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a waste incineration flue gas treatment device of the present invention; Figure 2 It is a structural schematic diagram of the separation mechanism; Figure 3 It is a structural diagram of the exhaust filter mechanism.

[0020] In the figure: 1-box, 2-upper partition, 3-filter mechanism, 4-partition mechanism, 5-exhaust filter mechanism, 6-dust exhaust port, 7-dust exhaust valve, 8-backflush mechanism, 41-moving drive mechanism, 42-lifting drive mechanism, 43-spacer, 44-hopper, 45-connecting hose I, 51-tube body, 52-filter sleeve, 53-piston ring, 54-piston body, 55-thrust 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-blow pipe, 85-cover, 86-branch pipe, 87-connecting hose II, 88-clean air outlet, 89-solenoid valve, 411-lower partition, 412-electric linear guide slide I, 413-dust hopper, 414-dust discharge port, 415-automatic valve, 421-electric linear guide slide II, 422-docking port, 423-sealing ring. DETAILED DESCRIPTION

[0021] See also Figure 1 , Figure 2 and Figure 3 The present invention discloses a waste incineration flue gas treatment device, comprising a box body 1, an upper partition plate 2, a plurality of filter mechanisms 3 and a partition mechanism 4. The box body 1 is provided with an upper partition plate 2, the filter mechanisms 3 are arranged on the upper partition plate 2 and constitute a plurality of filter areas, and the box body 1 is provided with a partition mechanism 4 for separating the filter mechanisms 3 in any filter area from the flue gas.

[0022] 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 separate the filtering mechanisms 3 in at least one row from the smoke.

[0023] The partition mechanism 4 includes a moving drive mechanism 41 , a lifting drive mechanism 42 and a spacer sleeve 43 . The moving drive mechanism 41 is provided with the lifting drive mechanism 42 , and the lifting drive mechanism 42 is provided with the spacer sleeve 43 .

[0024] The mobile driving mechanism 41 includes a lower partition 411 and an electric linear guide slide 1412 arranged on the lower partition 411, a smoke inlet 5 is arranged on the box body 1 between the lower partition 411 and the filtering mechanism 3, a dust collecting hopper 413 is arranged on the lower partition 411, a dust discharge port 414 is arranged at the lower end of the dust collecting hopper 413, and an automatic valve 415 is arranged on the dust discharge port 414.

[0025] The electric linear guide slide 1412 is provided with a hopper 44 connected to the lower end of the spacer sleeve 43, and the lower end of the hopper 44 is connected to the internal space of the box 1 below the dust collecting hopper 413 through a connecting hose 145.

[0026] The lifting drive mechanism 42 includes an electric linear guide slide II421 , and a docking port 422 is provided on the electric linear guide slide II421 . The lower end of the docking port 422 is connected to the upper end of the spacer sleeve 43 .

[0027] A sealing ring 423 is disposed at the upper end of the docking port 422 .

[0028] An exhaust filter mechanism 5 is provided on the box body 1 below the lower partition plate 411, and the exhaust filter mechanism 5 includes a tube body 51, a filter sleeve 52, a piston ring 53, a piston body 54, a plurality of slide rods 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, and 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 is penetrated in the positioning ring 57. Both the positioning ring 57 and the protective sleeve 510 are provided with through holes 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. An exhaust port 56 located above the piston body 54 is provided on one side of the tube body 51.

[0029] The lower end of the box body 1 is in a conical shape. A dust exhaust port 6 is provided at the lower end of the box body 1 . A dust exhaust valve 7 is provided on the dust exhaust port 6 .

[0030] A back-blowing mechanism 8 is provided at the upper end of the box body 1, and the back-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 covers 85, a plurality of branch pipes 86, a plurality of connecting hoses II87 and a clean air outlet 88. A main pipe 83 connected to the air supply pipe is provided in the cover body 81, cylinders 82 arranged in sequence are provided on the cover body 81, and 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, and the blowing pipes 84 on the same branch pipe 86 correspond one to one with the filtering mechanisms 3 in the corresponding row. A sealing cover 85 is provided on the blowing pipes 84, and a connecting hose II87 is provided at one end of the branch pipe 86. The connecting hose II87 is connected to the main pipe 83 through an electromagnetic valve 89, and a clean air outlet 88 is provided on the cover body 81.

[0031] The filtering mechanism 3 comprises a filter bag and a bag cage supported inside the filter bag.

[0032] Working process of the present invention: In the working process of a waste incineration flue gas treatment device of the present invention, when one row of the filter mechanisms 3 needs to be cleaned, the mobile driving mechanism 41 is started to drive the lifting driving mechanism 42 to move, and the lifting driving mechanism 42 drives the docking port 422 to move to the bottom of the corresponding row of filter mechanisms 3, and then the lifting driving mechanism 42 is started to drive the docking port 422 to rise, so that its sealing ring 423 is pressed tightly against the upper partition plate 2, and the spacer sleeve 43 of the stretched folds of the docking port 422 is stretched, and then the corresponding cylinder 82 is started to drive the branch pipe 86 thereon to move downward, and the branch pipe 86 drives the blowing pipe 84 thereon to extend into the corresponding filter mechanism 3 until the sealing cover 85 covers the corresponding filter mechanism 3, and then open the corresponding solenoid valve 89. At this time, the compressed air passes through the main pipe 83 and the corresponding solenoid valve 89, the connecting hose II87, the branch pipe 86 and the blowing pipe 84 in turn, and finally enters the filtering mechanism 3 to back-blow and clean the corresponding filter bag. The cleaned dust passes through the docking port 422, the spacer sleeve 43, the hopper 44 and the connecting hose I45 in turn 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 filter mechanism 5. The exhaust filter mechanism 5 can allow the compressed air to be discharged quickly, so that the compressed air mixed with dust in the spacer sleeve 43 can flow out quickly, thereby improving the back-blow efficiency and effect.

[0033] When the exhaust filter mechanism 5 is working, the compressed air mixed with dust enters the space below the dust hopper 413, and then passes through the piston ring 53, the filter sleeve 52 and the through hole 511 in sequence, 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 sliding rod 55. When the attracted body 58 approaches the electromagnet 59, it is attracted and fixed by it. 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 filter mechanism 3 is cleaned, the piston body 54 is no longer affected by the compressed air, and falls by its own weight and rests on the positioning ring 57 (at this time, the filter sleeve 52 is wrinkled), and then the electromagnet 59 is stopped. At this time, the piston body 54 falls by its own weight and pulls the filter sleeve 52 to be quickly tightened, thereby cleaning the filter sleeve 52.

[0034] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a 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 separation mechanism (4); 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 separation mechanism (4) for separating the filter mechanism (3) in any filter area from the smoke.

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 2, characterized in that: The separation mechanism (4) comprises a moving drive mechanism (41), a lifting drive mechanism (42) and a spacer sleeve (43); the moving drive mechanism (41) is provided with a lifting drive mechanism (42), and the lifting drive mechanism (42) is provided with a spacer sleeve (43).

4. A waste incineration flue gas treatment device as claimed in claim 3, characterized in that: The mobile drive mechanism (41) comprises a lower partition (411) and an electric linear guide slide I (412) arranged on the lower partition (411); a smoke inlet (5) is provided on the box body (1) between the lower partition (411) and the filter 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).

5. A waste incineration flue gas treatment device as claimed in claim 4, 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).

6. A waste incineration flue gas treatment device as claimed in claim 4, 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).

7. A waste incineration flue gas treatment device as claimed in claim 6, characterized in that: A sealing ring (423) is provided at the upper end of the docking port (422).

8. A waste incineration flue gas treatment device as claimed in claim 4, characterized in that: An exhaust filter mechanism (5) is provided on the box body (1) below the lower partition plate (411), and the exhaust filter mechanism (5) comprises 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), the upper end of the piston ring (53) is provided with a slide rod (55) passing through the positioning ring (57) and the piston body (54), the upper end of the slide rod (55) is provided with an attracted body (58), the upper end of the tube body (51) is provided with an electromagnet (59) cooperating with the attracted body (58), and one side of the tube body (51) is provided with an exhaust port (56) located above the piston body (54).

9. The waste incineration flue gas treatment device according to 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).

10. A waste incineration flue gas treatment device according to any one of claims 1 to 9, 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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