A waste incineration bag-type dust collector

Abstract

The utility model relates to bag type dust collector technical field more specifically is a kind of garbage incineration bag type dust collector, including the collecting cavity with the air inlet pipe of lower end, the upper end of collecting cavity is covered with dust bag, the upper end of collecting cavity is inserted with cover plate, and cover plate is detachably connected between collecting cavity by screw, and the edge of dust bag is pressed together on the top surface of collecting cavity by cover plate, the air outlet pipe is equipped on cover plate, and the bottom surface of cover plate is fixedly connected with multiple vertical frames, and the lower end of multiple vertical frames is fixedly connected with press frame, and press frame is covered in dust bag. Advantageous effect can open dust bag, avoid the inflow combustion tail gas airflow to cause dust bag to wrinkle, influence the filtering effect to tail gas.

Description

Technical Field

[0001] This utility model relates to the field of bag filter technology, and more specifically to a bag filter for waste incineration. Background Technology

[0002] Waste incineration produces exhaust gas containing many dust impurities, which is often treated using baghouse dust collectors. Baghouse dust collectors are a type of dry dust filtration device. They are suitable for collecting fine, dry, non-fibrous dust. The filter bags are made of woven filter cloth or non-woven felt, utilizing the filtration effect of the fibrous fabric to filter dust-laden gas. When the dust-laden gas enters the baghouse dust collector, larger, heavier dust particles settle due to gravity and fall into the ash hopper. The gas containing finer dust particles is purified as it passes through the filter media, as the dust is trapped.

[0003] Existing baghouse dust collectors include a support frame, filter bags fitted over the support frame, and a collection chamber located outside the filter bags. During operation, dust filtered by the filter bags falls into the collection chamber and is then discharged. However, they have the following shortcomings:

[0004] 1. After the cloth bag has been used for a period of time, it is necessary to remove the dust that has accumulated on the cloth bag. Usually, the cloth bag is removed manually for processing, which is a troublesome and time-consuming process with low efficiency.

[0005] 2. The dust filtered by the filter bag needs to settle by its own gravity, which is a slow process and affects the efficiency of the filter bag. Utility Model Content

[0006] This utility model provides a bag filter for waste incineration, which has the advantage of being able to open the dust collection bag to prevent the dust collection bag from wrinkling due to the airflow of combustion exhaust gas, thus affecting the filtration effect of the exhaust gas.

[0007] A waste incineration bag filter includes a collection chamber with an air inlet pipe at the lower end, a dust collection bag fitted at the upper end of the collection chamber, a cover plate interference fit at the upper end of the collection chamber, the cover plate and the collection chamber being detachably connected by screws, the cover plate pressing the edge of the dust collection bag against the top surface of the collection chamber, an air outlet pipe on the cover plate, multiple vertical frames fixed to the bottom surface of the cover plate, and pressure frames fixed to the lower ends of the multiple vertical frames, the pressure frames being fitted inside the dust collection bag.

[0008] Two vertical rods are slidably connected to the cover plate, and an inner scraper ring is fixed to the lower end of the two vertical rods. The inner scraper ring located inside the dust removal bag is slidably connected between multiple vertical frames. Attached Figure Description

[0009] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0010] Figure 1 This is a schematic diagram of a bag filter for waste incineration.

[0011] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure;

[0012] Figure 3 A schematic diagram of the collection chamber;

[0013] Figure 4 This is a schematic diagram of the cover plate structure;

[0014] Figure 5 This is a schematic diagram of the inner scraper ring structure;

[0015] Figure 6 This is a schematic diagram of the outer scraper ring.

[0016] Figure 7 This is a schematic diagram of the structure of the inner scraper ring and the outer scraper ring in operation;

[0017] Figure 8 This is a schematic diagram showing the structure of the inner and outer scraper rings in conjunction with the dust collector bag.

[0018] In the diagram: Collection chamber 101; bottom cover 102; air inlet pipe 103; screw I 104; dust bag 105; cover plate 201; air outlet pipe 202; vertical frame 203; pressure frame 204; U-shaped handle 205; round tube 206; vertical rod 207; inner scraper ring 208; outer scraper ring 301; square rod 302; screw II 303. Detailed Implementation

[0019] See Figures 1 to 4 The diagram shows an embodiment of the present invention in which the dust bag 105 is fully expanded to improve filtration efficiency.

[0020] A waste incineration bag filter includes a collection chamber 101 with an air inlet pipe 103 at the lower end, a dust collection bag 105 fitted onto the upper end of the collection chamber 101, a cover plate 201 interference-fitted onto the upper end of the collection chamber 101, and the cover plate 201 and the collection chamber 101 being detachably connected by screws. The cover plate 201 presses the edge of the dust collection bag 105 against the top surface of the collection chamber 101. An air outlet pipe 202 is provided on the cover plate 201. Multiple vertical frames 203 are fixedly connected to the bottom surface of the cover plate 201, and a pressure frame 204 is fixedly connected to the lower end of the multiple vertical frames 203. The pressure frame 204 is fitted inside the dust collection bag 105.

[0021] When the cover plate 201 is placed on the collection chamber 101, the pressure frame 204 enters the dust bag 105 and opens it. Simultaneously, the cover plate 201 presses the edge of the dust bag 105 against the top surface of the collection chamber 101, thus securing the dust bag 105. The cover plate 201 is then fixed to the collection chamber 101 with screws. The pressure frame 204, extending to the lower end of the dust bag 105, opens it, preventing the dust bag 105 from wrinkling due to the inflow of combustion exhaust gas, which would affect the filtration effect. Furthermore, the fully opened dust bag 105 can fully contact the exhaust gas, improving filtration efficiency.

[0022] The exhaust gas after waste incineration enters the collection chamber 101 through the inlet pipe 103. Under the action of the dust removal bag 105, large particles in the exhaust gas are filtered out, and the filtered gas is discharged through the outlet pipe 202.

[0023] The bottom surface of the collection chamber 101 is set as a conical surface. After the dust filtered by the dust bag 105 falls down, it is automatically collected at the bottom center of the collection chamber 101 along the conical surface. The bottom of the collection chamber 101 is threadedly connected to the bottom cover 102. After unscrewing the bottom cover 102, the collected dust is discharged and cleaned.

[0024] The lower end of the collection cavity 101 is fixedly surrounded by multiple support legs that provide support.

[0025] After removing the cover plate 201 from the collection chamber 101, the dust bag 105 can be replaced by removing the cover plate 201.

[0026] See Figure 4 and 5 This diagram illustrates an embodiment of scraping away dust deposited on the inner surface of a dust bag 105 according to the present invention.

[0027] Two vertical rods 207 are slidably connected to the cover plate 201. An inner scraper ring 208 is welded and fixed to the lower end of the two vertical rods 207. The inner scraper ring 208 located inside the dust bag 105 is slidably connected between multiple vertical frames 203.

[0028] When the two vertical rods 207 slide up and down, they can drive the inner scraper ring 208 to slide up and down inside the dust collector bag 105. The pressure frame 204 located at the lower end of the dust collector bag 105 can always keep the circumferential surface of the dust collector bag 105 in a stretched and flat state. Therefore, the vertical reciprocating movement of the inner scraper ring 208 can scrape off the dust deposited on the inner surface of the dust collector bag 105, thereby cleaning the dust on the surface of the stretched dust collector bag 105, so that the dust collector bag 105 can continue to perform the filtration operation of exhaust gas.

[0029] A U-shaped handle 205 is fixed to the center of the cover plate 201 by screws. The U-shaped handle 205 facilitates the movement of the cover plate 201 by hand.

[0030] A round tube 206 is fixedly connected between the two vertical rods 207. By holding the round tube 206 and moving it up and down, the inner scraper ring 208 can be moved up and down reciprocally by the two vertical rods 207 to clean and scrape the dust on the inner surface of the dust bag 105.

[0031] The round tube 206 can be embedded in the U-shaped handle 205. Under normal conditions, the round tube 206 is housed in the U-shaped handle 205 under the action of gravity of the inner scraper ring 208, and the cover plate 201, the pressure frame 204 and the inner scraper ring 208 can be moved as a whole by holding the U-shaped handle 205.

[0032] See Figures 6 to 8 This diagram illustrates an embodiment of cleaning dust from the outer surface of a dust bag 105 according to the present invention.

[0033] The upper end of the collection chamber 101 is symmetrically slidably connected to two square rods 302, and the lower ends of the two square rods 302 are welded and fixed with an outer scraper ring 301. The outer scraper ring 301 is slidably connected between the dust bag 105 and the collection chamber 101.

[0034] When the two square rods 302 slide up and down, they can drive the outer scraper ring 301 to slide up and down between the dust bag 105 and the collection chamber 101. The outer scraper ring 301 slides up and down to clean and scrape the dust on the outer surface of the dust bag 105 and the inner wall of the collection chamber 101.

[0035] The upper ends of both square rods 302 are threaded with screws II 303 that can be inserted into the round tube 206.

[0036] A screw I104 is threaded onto the collection cavity 101 at the position corresponding to the square rod 302.

[0037] Before exhaust gas is introduced, the outer scraper ring 301 is located at the upper end of the collection chamber 101. Two screws I 104 are tightly pressed against the square rod 302 to fix the position of the outer scraper ring 301. Then, the round tube 206 is pulled upward so that the inner scraper ring 208 is also at the upper end of the collection chamber 101, coplanar with the outer scraper ring 301. Then, two screws II 303 are screwed and inserted into both sides of the round tube 206 to lock the positions of the vertical rod 207 and the inner scraper ring 208, so that the outer scraper ring 301 and the inner scraper ring 208 are at the same horizontal plane. At this time, the dust bag 105 is located between the outer scraper ring 301 and the inner scraper ring 208. This facilitates the scraping of dust from top to bottom on the dust bag 105 after exhaust gas is introduced. The scraped dust automatically falls downward into the lower end of the collection chamber 101 for collection.

[0038] When it is necessary to clean the dust on the dust bag 105, loosen the two screws I104, and hold the round tube 206 to move the inner scraper ring 208 and the outer scraper ring 301 downwards in sync. The inner scraper ring 208 and the outer scraper ring 301 work together to scrape and clean the dust on the inner and outer surfaces of the dust bag 105. The process is simple, takes less time, and is highly efficient.

Claims

1. A bag filter for waste incineration, characterized in that, The system includes a collection chamber (101) with an air inlet pipe (103) at the lower end, a dust bag (105) fitted at the upper end of the collection chamber (101), a cover plate (201) with an interference fit at the upper end of the collection chamber (101), and a detachable connection between the cover plate (201) and the collection chamber (101) by screws. The cover plate (201) presses the edge of the dust bag (105) against the top surface of the collection chamber (101). An air outlet pipe (202) is provided on the cover plate (201). Multiple vertical brackets (203) are fixed to the bottom surface of the cover plate (201), and a pressure frame (204) is fixed to the lower end of the multiple vertical brackets (203). The pressure frame (204) is fitted inside the dust bag (105).

2. The waste incineration bag filter according to claim 1, characterized in that, Two vertical rods (207) are slidably connected to the cover plate (201), and an inner scraper ring (208) is fixedly connected to the lower end of the two vertical rods (207). The inner scraper ring (208) located inside the dust bag (105) is slidably connected between multiple vertical frames (203).

3. A bag filter for waste incineration according to claim 2, characterized in that, A U-shaped handle (205) is fixed to the center of the cover plate (201) by screws.

4. A bag filter for waste incineration according to claim 3, characterized in that, A circular tube (206) is fixed between the two vertical rods (207).

5. A bag filter for waste incineration according to claim 4, characterized in that, The round tube (206) can be embedded in the U-shaped handle (205).

6. A bag filter for waste incineration according to claim 5, characterized in that, The upper end of the collection chamber (101) is symmetrically slidably connected to two square rods (302), and the lower ends of the two square rods (302) are fixedly connected to an outer scraper ring (301). The outer scraper ring (301) is slidably connected between the dust bag (105) and the collection chamber (101).

7. A bag filter for waste incineration according to claim 6, characterized in that, The upper ends of both square rods (302) are threaded with screws II (303) that can be inserted into the round tube (206).

8. A bag filter for waste incineration according to claim 7, characterized in that, The collecting cavity (101) is threaded with a screw I (104) at the position corresponding to the square rod (302).

9. A bag filter for waste incineration according to claim 1, characterized in that, The bottom surface of the collecting cavity (101) is set as a conical surface, and the bottom of the collecting cavity (101) is threadedly connected to a bottom cover (102).

10. A bag filter for waste incineration according to claim 1, characterized in that, Multiple support legs are fixedly attached to the lower end of the collection cavity (101).

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