Negative pressure type dust removal equipment

Abstract

The utility model relates to the technical field of environment-friendly dust removal equipment, and discloses negative pressure type dust removal equipment, which comprises a cyclone dust collector and a dust collection barrel arranged at the bottom of the cyclone dust collector, dust removal ports are formed in two sides of one end, far away from the cyclone dust collector, of the dust collection barrel in a penetrating manner, and sealing doors are connected to the outer sides of the two dust removal ports. A sealing gasket is padded between the sealing door and the dust collecting barrel, a partition plate is fixedly connected into the dust collecting barrel, the two dust cleaning openings are located in the two sides of the partition plate respectively, a closing plate is movably connected to the top of the partition plate, and the side, away from the partition plate, of the closing plate abuts against the bottom of the cyclone dust collector. The outer side wall of the closing plate is slidably connected with the inner wall of the dust collecting cylinder. According to the negative pressure type dust removal equipment, two dust collection spaces are formed in the dust collection barrel 2 through mutual cooperation of the partition plate and the closing plate, and the closing plate is matched with the sealing door, so that dust in the space on one side is cleaned, dust collection operation continues to be carried out in the space on the other side, and the purpose of dust cleaning operation without shutdown is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection dust removal equipment, in particular to negative pressure dust removal equipment. Background Art

[0002] Negative pressure dust collection equipment is an environmentally friendly device that uses negative pressure (i.e., pressure below atmospheric pressure) to collect and process dust. This equipment is widely used in industrial production processes to control and reduce dust emissions, protecting the environment and employee health. Negative pressure dust collection equipment can be divided into various types, including wet negative pressure induced dust collection equipment and high-negative pressure dust collectors. High-negative pressure dust collectors use a high-pressure blower to generate strong negative pressure, forcing dust-laden air into the equipment. During this process, heavier dust particles naturally settle due to the slowed airflow. Finer dust particles are captured as they pass through filter cartridges or bags, separating the dust from the air. This type of equipment is widely used in industries such as metalworking, chemicals, and food processing, particularly in environments that require handling large quantities of fine dust and hazardous gases.

[0003] For example, the patent with announcement number CN218871665U discloses a centralized high-negative-pressure dust removal device, which includes a mounting base and a high-negative-pressure fan. A cyclone dust collector is fixedly mounted on the top of the mounting base, and a filter cartridge is fixedly connected to the air outlet of the cyclone dust collector. The air outlet of the filter cartridge is fixedly connected to a mounting box, and the mounting box is fixedly connected to an air suction pipe. A high-negative-pressure fan is fixedly mounted on the top of the mounting base, and the air inlet of the high-negative-pressure fan is fixedly connected to the air suction pipe. The air inlet of the cyclone dust collector is fixedly connected to an air suction box. By arranging an air suction box on the cyclone dust collector and arranging multiple groups of bellows on the air suction box, the dust removal pipelines on multiple groups of welding robots can be connected through the bellows, thereby realizing centralized dust removal operations on the welding robots and reducing operating costs.

[0004] However, the negative pressure dust removal equipment in the above technology still has the following problems:

[0005] When a lot of dust is collected in the dust box at the bottom of the equipment and the collected dust needs to be removed, the negative pressure dust removal equipment needs to be shut down and the air pressure inside the equipment needs to be restored to normal before the dust box can be opened for cleaning. This causes a gap in the dust removal operation and delays the normal dust removal operation. Utility Model Content

[0006] In view of the deficiencies of the prior art, the present invention provides a negative pressure dust removal device, such as: without stopping the negative pressure dust removal device, the dust collected in the dust removal device is cleaned to achieve continuous and stable dust removal operations.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a negative pressure dust removal equipment, including a cyclone dust collector and an ash collecting barrel installed at the bottom of the cyclone dust collector, the ash collecting barrel having cleaning ports on both sides away from one end of the cyclone dust collector, the two cleaning ports are connected to the outside of the two cleaning ports with sealing doors, a sealing gasket is placed between the sealing door and the ash collecting barrel, a partition plate is fixedly connected inside the ash collecting barrel, the two cleaning ports are respectively located on both sides of the partition plate, the top of the partition plate is movably connected to a closing plate, the side of the closing plate away from the partition plate is against the bottom of the cyclone dust collector, the closing plate is a fan-shaped plate, and the outer wall of the closing plate is slidably connected to the inner wall of the ash collecting barrel.

[0008] Furthermore, a motor cavity is opened in the middle position of the top of the partition plate, and a closing motor is fixedly connected in the motor cavity. The output shaft of the closing motor passes through the motor cavity and is fixedly connected to the closing plate.

[0009] Furthermore, a scraping rod is fixedly connected to the inner wall of the bottom of the cyclone dust collector, and the bottom of the scraping rod is slidably connected to the closing plate.

[0010] Furthermore, a limiting ring is fixedly connected to the bottom of the cyclone dust collector, a limiting groove is provided on one side of the closing plate close to the cyclone dust collector, and the limiting ring is slidably connected to the limiting groove.

[0011] Furthermore, the upper and lower sides of one end of the sealing door are rotatably connected to connecting blocks through a rotating shaft, and the two connecting blocks are fixedly connected to the outer wall of the ash collecting barrel. The side of the ash collecting barrel away from the connecting block is connected to a locking door assembly, and the two sides of the locking door assembly are respectively connected to the two sealing doors.

[0012] Furthermore, the door locking assembly includes a fixed block and two door locking blocks. The fixed block is fixedly connected to the ash collecting barrel. Telescopic grooves are provided on both sides of the fixed block. The two door locking blocks are slidingly connected to the two telescopic grooves respectively. Several telescopic springs are fixedly connected to one side of the two door locking blocks close to the telescopic grooves, and the other ends of the several telescopic springs are fixedly connected to adjacent telescopic grooves respectively.

[0013] Furthermore, anti-slip grooves are provided on both sides of the telescopic groove, and anti-slip blocks are fixedly connected to both sides of the door locking block, and the two anti-slip blocks are slidably connected to the two anti-slip grooves respectively.

[0014] Furthermore, both sides of the scraping rod away from the closing plate are provided with inclined surfaces.

[0015] Furthermore, a side of the door locking block away from the telescopic spring and away from the ash collecting cylinder is provided with an inclined surface.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This negative pressure dust removal equipment forms two dust collecting spaces in the dust collecting barrel 2 through the mutual cooperation of the partition plate and the closing plate, and through the cooperation of the closing plate and the sealing door, dust can be cleaned in one space while the dust collection operation continues in the other space, thus achieving the purpose of dust cleaning operation without stopping the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall appearance and connection structure of the utility model;

[0019] Figure 2 Based on Figure 1 A schematic cross-sectional view of a portion of the connection structure;

[0020] Figure 3 Based on Figure 2 Schematic diagram of the bottom connection structure of the cyclone dust collector;

[0021] Figure 4 This is a schematic diagram of the connection structure of the ash collecting barrel of the utility model;

[0022] Figure 5 Based on Figure 4 Exploded schematic diagram of the connection structure;

[0023] Figure 6 This is a schematic diagram of another connection structure of the ash collecting barrel of the present invention;

[0024] Figure 7 Based on Figure 6 Schematic diagram of the connection structure from another angle;

[0025] Figure 8 This is a cross-sectional schematic diagram of the fixing block connection structure of the utility model;

[0026] Figure 9 Based on Figure 8 Exploded diagram of the connection structure.

[0027] In the figure: 1. Cyclone dust collector; 2. Dust collecting cylinder; 3. Sealing door; 4. Partition plate; 5. Closing plate; 6. Closing motor; 7. Dust scraper rod; 8. Limiting ring; 9. Connecting block; 10. Fixing block; 11. Door locking block; 12. Telescopic spring; 13. Anti-slip block; 14. Sealing gasket; 101. Telescopic slot; 102. Anti-slip slot; 201. Dust cleaning port; 401. Motor cavity; 501. Limiting slot. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] See also Figure 1 - Figure 9 , a negative pressure dust removal equipment, including a cyclone dust collector 1 and an ash collecting drum 2 installed at the bottom of the cyclone dust collector 1, ash collecting drum 2 away from the cyclone dust collector 1 on both sides are penetrated with ash cleaning ports 201, the outer sides of the two ash cleaning ports 201 are connected with sealing doors 3, a sealing gasket 14 is padded between the sealing door 3 and the ash collecting drum 2, a partition plate 4 is fixedly connected to the ash collecting drum 2, the two ash cleaning ports 201 are respectively located on both sides of the partition plate 4, and the top of the partition plate 4 is movably connected with a closing plate 5, the side of the closing plate 5 away from the partition plate 4 is against the bottom of the cyclone dust collector 1, the closing plate 5 is a fan-shaped plate, and the outer wall of the closing plate 5 is slidably connected to the inner wall of the ash collecting drum 2.

[0030] like Figure 1 - Figure 9 As shown, the negative pressure dust removal equipment in the present invention is similar in structure to the existing negative pressure dust removal equipment, such as a centralized high negative pressure dust removal equipment disclosed in the patent with announcement number CN218871665U. The main improvement of the present invention is that the dust in the bottom dust collection barrel 2 can be cleaned without stopping the machine, thereby improving the dust removal efficiency. Figures 1 to 9 As shown, when the negative pressure dust removal equipment in the present invention is in use, when the dust in the cyclone dust collector 1 falls into the dust collecting barrel 2, the space in the dust collecting barrel 2 is divided into two by the partition plate 4, and the top of the space on one side of the partition plate 4 can be blocked by using the closing plate 5, so that the space of the dust collecting barrel 2 below the closing plate 5 is isolated from the cyclone dust collector 1. At this time, the sealing door 3 outside the isolation space can be opened to expose the corresponding cleaning port 201, and the internal dust can be cleaned. In addition, the sealing effect of the sealing door 3 on the cleaning port 201 can be improved by the sealing gasket 14. At the same time, the space on the other side of the partition plate 4 is still connected to the cyclone dust collector 1, and the dust falling from the top is collected. By cyclically opening the spaces on both sides, the dust collected in the dust collecting barrel 2 can be cleaned without stopping the machine, thereby improving the negative pressure dust removal efficiency.

[0031] like Figure 3 As shown, a motor cavity 401 is defined in the center of the top of the partition plate 4. A closing motor 6 is fixedly connected to the motor cavity 401. The output shaft of the closing motor 6 extends through the motor cavity 401 and is fixedly connected to the closing plate 5. When the closing plate 5 rotates, the closing motor 6 in the motor cavity 401 within the partition plate 4 can drive the closing plate 5 to seal the space on one side of the top of the ash collection barrel 2. It should be noted that the closing motor 6 can be a stepping motor to control the cyclic sealing of the closing plate 5 on both sides of the top of the partition plate 4.

[0032] like Figure 2 and Figure 3As shown, a scraper rod 7 is fixedly connected to the bottom inner wall of the cyclone dust collector 1, and the bottom of the scraper rod 7 is slidably connected to the closing plate 5. When dust falls on the closing plate 5 and moves to the space on the other side of the partition plate 4, the scraper rod 7 can follow the rotation of the closing plate 5 to scrape the dust off the closing plate 5 and drop it into the dust collection barrel 2 below.

[0033] like Figure 3 - Figure 7 As shown, a limit ring 8 is fixedly connected to the bottom of the cyclone dust collector 1. A limit groove 501 is defined on the side of the closing plate 5 adjacent to the cyclone dust collector 1. The limit ring 8 is slidably connected to the limit groove 501. When the closing plate 5 rotates at the bottom of the cyclone dust collector 1, the connection between the limit ring 8 and the limit groove 501 further improves the sealing effect at the contact point between the closing plate 5 and the cyclone dust collector 1.

[0034] like Figure 7 As shown, the upper and lower sides of one end of the sealing door 3 are rotatably connected to connecting blocks 9 via a rotating shaft. Both connecting blocks 9 are fixedly connected to the outer wall of the ash collection barrel 2. A locking door assembly is connected to the side of the ash collection barrel 2 away from the connecting block 9. Both sides of the locking door assembly are connected to the two sealing doors 3. The sealing door 3 can be flipped between the two connecting blocks 9 via the rotating shaft, thereby exposing the corresponding ash cleaning port 201, and realizing the closing and opening operations of the sealing door 3 with respect to the ash cleaning port 201.

[0035] like Figure 1 - Figure 9 As shown, the door lock assembly includes a fixed block 10 and two door lock blocks 11. The fixed block 10 is fixedly connected to the ash collection barrel 2. Telescopic slots 101 are provided on both sides of the fixed block 10. The two door lock blocks 11 are respectively slidably connected to the two telescopic slots 101. A plurality of telescopic springs 12 are fixedly connected to the side of the two door lock blocks 11 close to the telescopic slots 101. The other ends of the plurality of telescopic springs 12 are respectively fixedly connected to adjacent telescopic slots 101. The telescopic springs 12 push the door lock block 11 from the inside of the telescopic slot 101 to the outside, thereby locking the end of the sealing door 3 away from the connecting block 9 between the door lock block 11 and the ash collection barrel 2. When opening the sealing door 3, the door lock block 11 is pressed into the telescopic slot 101 to release the end connection of the sealing door 3, thereby flipping the sealing door 3 outward.

[0036] like Figure 8 and Figure 9 As shown, anti-slip grooves 102 are provided on both sides of the telescopic slot 101, and anti-slip blocks 13 are fixedly connected to both sides of the door lock block 11. The two anti-slip blocks 13 are respectively slidably connected to the two anti-slip grooves 102. The connection between the anti-slip blocks 13 and the anti-slip grooves 102 can prevent the telescopic spring 12 from pushing the door lock block 11 out of the telescopic slot 101, thereby improving the stability of the connection between the door lock block 11 and the telescopic slot 101.

[0037] like Figure 1 - Figure 9 As shown, the scraper rod 7 is provided with inclined surfaces on both sides of the end away from the closing plate 5. The double inclined surfaces at the end of the scraper rod 7 away from the closing plate 5 allow dust in the cyclone dust collector 1 to fall onto the closing plate 5 from the inclined surfaces. Then, as the closing plate 5 rotates, the dust on the closing plate 5 is scraped off by the scraper rod 7 and falls into the dust collection barrel 2.

[0038] like Figure 1 - Figure 9 As shown, the door lock block 11 is provided with an inclined surface on the side away from the telescopic spring 12 and the side away from the ash collecting barrel 2. The inclined surface is provided on the side of the door lock block 11. When the sealing door 3 is closed, the end of the sealing door 3 abuts against the inclined surface of the door lock block 11, thereby automatically squeezing the door lock block 11 into the telescopic groove 101. When the sealing door 3 abuts against the outer wall of the ash collecting barrel 2, the telescopic spring 12 pushes the door lock block 11 out of the telescopic groove 101, thereby locking the sealing door 3 outside the ash collecting barrel 2, making the sealing door 3 easier to close.

[0039] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A negative pressure dust removal device, comprising a cyclone dust collector (1) and a dust collecting drum (2) mounted at the bottom of the cyclone dust collector (1), characterized in that: The ash collecting barrel (2) is provided with ash cleaning ports (201) on both sides of one end away from the cyclone dust collector (1), and the outer sides of the two ash cleaning ports (201) are connected to sealing doors (3). A sealing gasket (14) is provided between the sealing door (3) and the ash collecting barrel (2). A partition plate (4) is fixedly connected inside the ash collecting barrel (2), and the two ash cleaning ports (201) are respectively located on both sides of the partition plate (4). A closing plate (5) is movably connected to the top of the partition plate (4), and the side of the closing plate (5) away from the partition plate (4) is against the bottom of the cyclone dust collector (1). The closing plate (5) is a fan-shaped plate, and the outer wall of the closing plate (5) is slidably connected to the inner wall of the ash collecting barrel (2).

2. The negative pressure dust removal equipment according to claim 1, characterized in that: A motor cavity (401) is provided in the middle of the top of the partition plate (4), a closing motor (6) is fixedly connected in the motor cavity (401), and an output shaft of the closing motor (6) passes through the motor cavity (401) and is fixedly connected to the closing plate (5).

3. A negative pressure dust removal device according to claim 1 or 2, characterized in that: A scraping rod (7) is fixedly connected to the inner wall of the bottom of the cyclone dust collector (1), and the bottom of the scraping rod (7) is slidably connected to the closing plate (5).

4. A negative pressure dust removal device according to claim 1 or 2, characterized in that: The bottom of the cyclone dust collector (1) is fixedly connected to a limiting ring (8), a limiting groove (501) is provided on a side of the closing plate (5) close to the cyclone dust collector (1), and the limiting ring (8) is slidably connected to the limiting groove (501).

5. The negative pressure dust removal equipment according to claim 1 or 2, characterized in that: The upper and lower sides of one end of the sealing door (3) are rotatably connected to a connecting block (9) via a rotating shaft. The two connecting blocks (9) are fixedly connected to the outer side wall of the ash collecting cylinder (2). The side of the ash collecting cylinder (2) away from the connecting block (9) is connected to a locking door assembly. The two sides of the locking door assembly are respectively connected to the two sealing doors (3).

6. The negative pressure dust removal equipment according to claim 5, characterized in that: The door lock assembly comprises a fixed block (10) and two door lock blocks (11), the fixed block (10) is fixedly connected to the ash collecting cylinder (2), telescopic grooves (101) are provided on both sides of the fixed block (10), the two door lock blocks (11) are respectively slidably connected to the two telescopic grooves (101), and a plurality of telescopic springs (12) are fixedly connected to one side of the two door lock blocks (11) close to the telescopic grooves (101), and the other ends of the plurality of telescopic springs (12) are respectively fixedly connected to adjacent telescopic grooves (101).

7. The negative pressure dust removal equipment according to claim 6, characterized in that: Anti-slip grooves (102) are provided on both sides of the telescopic groove (101), and anti-slip blocks (13) are fixedly connected to both sides of the door lock block (11), and the two anti-slip blocks (13) are slidably connected to the two anti-slip grooves (102).

8. The negative pressure dust removal equipment according to claim 3, characterized in that: Both sides of the scraping rod (7) away from the end of the closing plate (5) are provided with inclined surfaces.

9. The negative pressure dust removal equipment according to claim 6 or 7, characterized in that: The door locking block (11) is provided with an inclined surface on the side away from the telescopic spring (12) and the side away from the ash collecting cylinder (2).

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