Anti-back-blowing pulse type filtering bag-type dust collector

Abstract

The utility model relates to the technical field of industrial dust removal equipment, and discloses an anti-back-blowing pulse type filter bag-type dust remover which comprises a box body, an air blower is fixedly arranged on the upper surface of the box body, an air inlet valve pipeline is fixedly arranged on the left surface of the box body, an air outlet valve pipeline is fixedly arranged on the right surface of the box body, and an air outlet pipe is arranged at the right end of the box body. When gas enters the box body, after the gas is filtered in time through the filter cloth bag, the filtered gas enters the box body from the groove hole in a concentrated mode through the partition plate and then stably enters the gas outlet valve pipeline to be discharged, the reverse blowing function is added, and the gas purification efficiency is improved. By closing the air inlet and the air outlet of the box body, dust on the filter cloth bag can be blown and cleaned away in time, the cleaning efficiency is improved, and the stability of airflow received by the filter cloth bag is guaranteed through the frame.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial dust removal equipment, in particular to an anti-backwash pulse filter bag dust collector. Background Technique

[0002] In industry, a large amount of industrial dust is generated during processes such as material crushing, conveying, transferring, lifting, and flue gas purification. If dust removal measures are not taken, it will not only pollute the environment, deteriorate working conditions, but also cause material losses. Usually, a low-pressure pulse bag filter is used to capture and clean dust.

[0003] For the dust collector used in industrial dust removal, referring to the patent number: CN208244301U, a pulse filter bag dust collector. The air with dust at the air inlet enters the middle box for filtration. Large particles are directly blocked by the guide plate and fall into the ash hopper. At the same time, the guide plate can prevent the air at the air inlet from directly blowing in and causing excessive air flow pressure on local areas of the filter bag, affecting the service life of the filter bag. The utility model can ensure uniform air volume around the filter bag, so that the filter bag is evenly stressed and the service life of the filter bag is improved.

[0004] However, the above pulse dust collector does not have the function of anti-backwashing the incoming air flow. Once the incoming air flow circulates in the box and cannot be discharged in time, it will cause gas backflow, thus affecting the intake work and the overall dust removal operation efficiency.

[0005] Therefore, we propose an anti-backwash pulse filter bag dust collector. Content of the Utility Model

[0006] (I) Technical Problems to be Solved

[0007] Aiming at the deficiencies of the prior art, the utility model provides an anti-backwash pulse filter bag dust collector, which overcomes the deficiencies of the prior art and solves the problem that in the background technique, due to the above pulse dust collector not having the function of anti-backwashing the incoming air flow, once the incoming air flow circulates in the box and cannot be discharged in time, it will cause gas backflow, thus affecting the intake work and the overall dust removal operation efficiency.

[0008] (II) Technical Solutions

[0009] To achieve the above object, the present utility model provides the following technical solution: A pulse type filter bag dust collector with anti-back blowing function, which comprises a box body. A blower is fixedly installed on the upper surface of the box body. An intake valve pipeline is fixedly installed on the left surface of the box body. An outlet valve pipeline is fixedly installed on the right surface of the box body. An air outlet pipe is arranged at the right end of the box body. An air extraction pump is fixedly installed on the outer surface of the air outlet pipe. A dust collection box is fixedly installed on the lower surface of the box body. A pull plate is slidably inserted into the front surface of the dust collection box. A discharge port is opened on the lower surface of the dust collection box. A partition plate is fixedly installed on the inner surface of the box body. Two slot holes are opened on the upper surface of the partition plate. Two frames are fixedly installed on the lower surface of the partition plate. Filter bags are movably sleeved on the outer surfaces of the two frames.

[0010] Preferably, a gas collecting pipe is fixedly inserted into the lower surface of the intake valve pipeline. A baffle is rotatably arranged on the lower surface of the gas collecting pipe. An external threaded pipe is fixedly connected to the upper surface of the baffle. A handle is fixedly connected to the lower surface of the baffle.

[0011] Preferably, the intake valve pipeline, the box body, the outlet valve pipeline, the air outlet pipe and the air extraction pump are interconnected. The intake end of the air extraction pump corresponds to the outlet valve pipeline and the outlet end corresponds to the air outlet pipe.

[0012] Preferably, the air outlet of the blower corresponds to the partition plate. A sliding groove corresponding to the sliding of the pull plate is opened on the front surface of the dust collection box. The pull plate corresponds to the discharge port.

[0013] Preferably, a threaded groove corresponding to the threaded connection with the external threaded pipe is opened on the inner surface of the gas collecting pipe. A notch communicating with the gas collecting pipe is opened on the inner surface of the outlet valve pipeline.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the present utility model provides a pulse type filter bag dust collector with anti-back blowing function, which has the following beneficial effects:

[0016] 1. For the pulse type filter bag dust collector with anti-back blowing function, through the cooperation among structures such as the box body, the blower, the intake valve pipeline, the outlet valve pipeline, the air outlet pipe, the air extraction pump, the dust collection box, the pull plate, the discharge port, the partition plate, the slot holes, the frames, the filter bags, etc., when the gas enters the box body, the gas can be filtered in time through the filter bags. After filtering, the gas enters through the slot holes concentratedly from the partition plate and then stably enters the outlet valve pipeline for discharging, which increases the anti-back blowing function. Moreover, by closing the air inlet and outlet of the box body, the dust on the filter bags can be blown and cleaned in time, improving the cleaning efficiency. The frames ensure the stability of the filter bags under the airflow.

[0017] 2. The pulse - type filter bag dust collector with anti - back - blowing function, through the cooperation among structures such as the gas collecting pipe, baffle, external thread pipe, handle, etc., can, when the air inlet of the box body is closed, briefly receive gas through the gas collecting pipe for diversion, avoiding the back - retraction of air flow due to the long - term blockage of the air inlet valve. Then, after the air inlet is opened, the gas in the gas collecting pipe flows into the box body along with the air flow, without affecting the normal dust removal effect, and can also collect a certain amount of dust particles in the gas collecting pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 is an exploded view of the baffle and its related structures of the present utility model;

[0020] Figure 3 is a three - dimensional structure diagram of the interior of the box body and its related structures of the present utility model;

[0021] Figure 4 is a three - dimensional structure diagram of the interior of the filter bag and its related structures of the present utility model.

[0022] In the figure: 1. Box body; 2. Blower; 3. Air inlet valve pipeline; 4. Air outlet valve pipeline; 5. Air outlet pipe; 6. Exhaust pump; 7. Dust collection box; 8. Pulling plate; 9. Discharge port; 10. Partition board; 11. Slot hole; 12. Frame; 13. Filter bag; 14. Gas collecting pipe; 15. Baffle; 16. External thread pipe; 17. Handle. SPECIFIC EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment 1

[0025] Please refer to Figures 1-4, A pulse - type filter bag 13 dust collector with anti - back - blowing function, including a box body 1. A blower 2 is fixedly installed on the upper surface of the box body 1. An intake valve pipeline 3 is fixedly installed on the left surface of the box body 1. An exhaust valve pipeline 4 is fixedly installed on the right surface of the box body 1. An exhaust pipe 5 is arranged at the right end of the box body 1. An air extraction pump 6 is fixedly installed on the outer surface of the exhaust pipe 5. A dust collection box 7 is fixedly installed on the lower surface of the box body 1. A pull - plate 8 is slidably inserted into the front surface of the dust collection box 7. A discharge port 9 is opened on the lower surface of the dust collection box 7. A partition 10 is fixedly installed on the inner surface of the box body 1. Two slot holes 11 are opened on the upper surface of the partition 10. Two frames 12 are fixedly installed on the lower surface of the partition 10. Filter bags 13 are movably sleeved on the outer surfaces of the two frames 12.

[0026] Specifically, through the cooperation among structures such as the box body 1, the blower 2, the intake valve pipeline 3, the exhaust valve pipeline 4, the exhaust pipe 5, the air extraction pump 6, the dust collection box 7, the pull - plate 8, the discharge port 9, the partition 10, the slot holes 11, the frames 12, and the filter bags 13, when gas enters the box body 1, the gas can be filtered in time by the filter bags 13. After filtration, the gas enters through the slot holes 11 concentratedly from the partition 10, and then stably enters the exhaust valve pipeline 4 for discharging, increasing the anti - back - blowing function. Moreover, by closing the air inlet and outlet of the box body 1, the dust on the filter bags 13 can be blown and cleaned in time, improving the cleaning efficiency. The frames 12 ensure the stability of the filter bags 13 under the airflow.

[0027] In this implementation scheme: The intake valve pipeline 3, the box body 1, the exhaust valve pipeline 4, the exhaust pipe 5, and the air extraction pump 6 are interconnected. The intake end of the air extraction pump 6 corresponds to the exhaust valve pipeline 4 and the exhaust end corresponds to the exhaust pipe 5.

[0028] Specifically, the air extraction pump 6 can pump the gas filtered by the box body 1 and discharge it from the exhaust pipe 5.

[0029] In this implementation scheme: The air outlet of the blower 2 corresponds to the partition 10. A sliding groove corresponding to the sliding setting of the pull - plate 8 is opened on the front surface of the dust collection box 7. The pull - plate 8 corresponds to the discharge port 9.

[0030] Specifically, the blower 2 can blow air into the slot holes 11 on the partition 10 in the box body 1, and clean the dust on the outer surface by the gas entering the filter bags 13.

[0031] Working principle: When dust removal work needs to be carried out on the gas and the dust collector needs to be operated, open the intake valve pipeline 3 and the outlet valve pipeline 4, turn on the air extraction pump 6. The gas enters the box body 1 through the intake valve pipeline 3, and the dust is filtered on the surface by the filter bag 13. The filter bag 13 is supported by the frame 12. Then the gas enters the top end of the inner wall of the box body 1 through the slot 11 on the partition plate 10, and then flows through the outlet valve pipeline 4. The filtered gas is discharged through the air outlet pipe 5 by the air extraction pump 6 to complete the filtration. At the same time of gas filtration, larger granular dust falls into the dust collection box 7. The discharge port 9 is blocked by inserting the pull plate 8 into the chute for collection. Then when the filter bag 13 needs to be cleaned, close the intake valve pipeline 3 and the outlet valve pipeline 4, and then turn on the air blower. The wind blows through the two slots 11 and enters the filter bag 13, blowing the dust on the surface of the filter bag 13 into the dust collection box 7 for collection. Then turn off the air blower 2. The dust in the dust removal box can be discharged and cleaned through the discharge port 9 by pulling out the pull plate 8. Then close the pull plate 8, and the intake valve pipeline 3 and the outlet valve pipeline 4 can be opened to carry out normal dust removal work.

[0032] Embodiment 2

[0033] Please refer to Figures 1-2 , on the basis of Embodiment 1, the present utility model provides a technical solution:

[0034] In this embodiment: A gas collecting pipe 14 is fixedly inserted on the lower surface of the intake valve pipeline 3. A baffle 15 is rotatably arranged on the lower surface of the gas collecting pipe 14. An external thread pipe 16 is fixedly connected to the upper surface of the baffle 15. A handle 17 is fixedly connected to the lower surface of the baffle 15.

[0035] Specifically, through the cooperation between structures such as the gas collecting pipe 14, the baffle 15, the external thread pipe 16, and the handle 17, when the air inlet of the box body 1 is closed, the gas can be briefly received through the gas collecting pipe 14 for diversion to avoid the air flow retraction caused by the long-term blockage of the intake valve. Then after the air inlet is opened, the gas in the gas collecting pipe 14 flows into the box body 1 along with the air flow, which does not affect the normal dust removal effect and can also collect a certain amount of dust particles in the gas collecting pipe 14.

[0036] In this implementation scheme: A thread groove corresponding to the external thread pipe 16 is provided on the inner surface of the gas collecting pipe 14, and a notch communicating with the gas collecting pipe 14 is provided on the inner surface of the outlet valve pipeline 4.

[0037] Specifically, the baffle 15 is installed and connected to the thread groove of the gas collecting pipe 14 by rotating the external thread pipe 16 in the forward direction.

[0038] Working principle: When the dust collector box body 1 is performing dust removal work, the intake valve pipeline 3 allows gas to flow. When cleaning the filter bag 13, when the intake valve pipeline 3 is briefly closed, some of the incoming gas can be concentrated in the gas collecting pipe 14 through the notch, reducing the air pressure in the intake valve pipeline 3. Then, after the intake valve pipeline 3 is opened, with the flow of gas, the gas in the gas collecting pipe 14 is taken away together. After the subsequent dust removal work is completed, the baffle 15 can be removed by turning the handle 17 clockwise to cooperate with the threaded groove of the gas collecting pipe 14 through the external threaded pipe 16, and then the baffle 15 can be taken off to clean the dust remaining in the gas collecting pipe 14. Then, turn the baffle 15 counterclockwise to seal and install the external threaded pipe 16 and the threaded groove with the gas collecting pipe 14.

[0039] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pulse - type filter bag dust collector with anti - back - blowing function, comprising a box body (1), characterized in that: A hair dryer (2) is fixedly installed on the upper surface of the box body (1). An intake valve pipeline (3) is fixedly installed on the left surface of the box body (1). An outlet valve pipeline (4) is fixedly installed on the right surface of the box body (1). An air outlet pipe (5) is arranged at the right end of the box body (1). An air extraction pump (6) is fixedly installed on the outer surface of the air outlet pipe (5). A dust collection box (7) is fixedly installed on the lower surface of the box body (1). A pull plate (8) is slidably inserted into the front surface of the dust collection box (7). A discharge port (9) is formed on the lower surface of the dust collection box (7). A partition plate (10) is fixedly installed on the inner surface of the box body (1). Two slot holes (11) are formed on the upper surface of the partition plate (10). Two frames (12) are fixedly installed on the lower surface of the partition plate (10). Filter bags (13) are movably sleeved on the outer surfaces of the two frames (12).

2. The pulse - type filter bag dust collector with anti - back - blow according to claim 1, characterized in that: A gas collecting pipe (14) is fixedly inserted into the lower surface of the intake valve pipeline (3). A baffle (15) is rotatably arranged on the lower surface of the gas collecting pipe (14). An external threaded pipe (16) is fixedly connected to the upper surface of the baffle (15). A handle (17) is fixedly connected to the lower surface of the baffle (15).

3. The pulse-type filter bag dust collector with anti-backflush according to claim 1, characterized in that: The intake valve pipeline (3), the box body (1), the outlet valve pipeline (4), the air outlet pipe (5) and the air extraction pump (6) are interconnected. The intake end of the air extraction pump (6) corresponds to the outlet valve pipeline (4) and the outlet end corresponds to the air outlet pipe (5).

4. The pulse - type filter bag dust collector with anti - back - blowing according to claim 1, characterized in that: The air outlet of the hair dryer (2) corresponds to the partition plate (10). A sliding groove corresponding to the sliding of the pull plate (8) is formed on the front surface of the dust collection box (7). The pull plate (8) corresponds to the discharge port (9).

5. The pulse - type filter bag dust collector with anti - back - blowing according to claim 2, characterized in that: A thread groove corresponding to the threaded connection with the external threaded pipe (16) is formed on the inner surface of the gas collecting pipe (14). A notch communicating with the gas collecting pipe (14) is formed on the inner surface of the outlet valve pipeline (4).

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