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CN-122006364-A - Negative pressure type dust collector that poultry fodder production was used

CN122006364ACN 122006364 ACN122006364 ACN 122006364ACN-122006364-A

Abstract

The invention relates to the technical field of feed processing, in particular to a negative pressure type dust removing device for poultry feed production, which comprises a wind box, a filtering component, a driving component and an ash removing component, wherein the filtering component is rotatably arranged in the wind box and is used for filtering dust-containing airflow, the driving component is arranged on the wind box and is used for driving the filtering component to intermittently rotate, and the ash removing component is arranged on the wind box and is used for carrying out high-pressure pulse ash removal on the filtering component rotating to a specific position. The device realizes dynamic switching of a filtering area and an ash removing area through the rotation of the filter cylinder, combines the synergistic effect of high-pressure pulse blowing and the reciprocating vibration of the filter cloth plate driven by the spring, effectively peels off a compact filter cake formed by viscous feed dust under a negative pressure working condition, solves the problems of difficult ash removal of the traditional dust removing equipment and easy blocking pain points of filter materials, and remarkably improves the filtering efficiency and the continuity of equipment operation.

Inventors

  • ZHAO HANSHENG
  • WANG ZEGUANG
  • LIU XINGLIAN

Assignees

  • 山东肽元生物技术有限公司

Dates

Publication Date
20260512
Application Date
20260319

Claims (9)

  1. 1. A negative pressure type dust removing device for poultry feed production is characterized by comprising a wind box (101), a filtering component, a driving component and a dust removing component, wherein the filtering component is rotatably arranged in the wind box (101) and is used for filtering dust-containing airflow, the driving component is arranged on the wind box (101) and is used for driving the filtering component to intermittently rotate, the dust removing component is arranged on the wind box (101) and is used for carrying out high-pressure pulse dust removal on the filtering component rotating to a specific position, an air inlet window (103) is formed in the front side of the wind box (101), an air outlet pipe (102) is fixedly connected to the left side of the wind box, an air pressure sensor (110) used for monitoring filtering resistance is arranged in the air outlet pipe (102), and the air pressure sensor (110) is electrically connected with the driving component and is used for automatically triggering rotation switching of the filtering component according to air pressure change.
  2. 2. The negative pressure dust removing device for poultry feed production according to claim 1, wherein the filter assembly comprises a filter cylinder (107) and twenty filter cloth plates (108), the filter cylinder (107) is rotatably connected in the bellows (101), the twenty filter cloth plates (108) are uniformly rotatably connected on the filter cylinder (107) along the circumferential direction, and the inner sides of the filter cloth plates (108) are connected with the filter cylinder (107) through bilateral symmetry springs (109).
  3. 3. The negative pressure type dust removing device for poultry feed production according to claim 2, further comprising an air duct (104) and a connecting plate (1021), wherein the connecting plate (1021) is detachably arranged on the right side of the air box (101) through uniformly distributed screws, the air duct (104) is fixedly connected to the left side of the connecting plate (1021) and is positioned in the air box (101), and the filter cylinder (107) is rotatably connected between the inner wall of the air box (101) and the outer wall of the air duct (104).
  4. 4. A negative pressure type dust collector for poultry feed production according to claim 3, wherein the front side of the air duct (104) is provided with a 72 ° fan-shaped compartment matched with the air inlet window (103), the left side of the compartment is provided with an air outlet, and the inlet end of the air outlet pipe (102) is attached to the left side of the air duct (104) and aligned and communicated with the air outlet.
  5. 5. The negative pressure dust collector for poultry feed production according to claim 4, wherein the filter cartridge (107) has a portion corresponding to the 72 ° fan-shaped compartment of the air duct (104) as a working area and the remaining 288 ° portion as a free area, and the dust removing assembly is disposed at a position corresponding to the free area.
  6. 6. The negative pressure type dust removing device for poultry feed production according to claim 5, wherein the driving assembly comprises a first fixing frame (201), a motor (202), a gear (203) and a gear ring (204), wherein the first fixing frame (201) is fixedly connected to the left side of the air drum (104), the motor (202) is installed in the first fixing frame (201), an output shaft of the motor is fixedly connected with the gear (203) through a coupler, and the gear ring (204) is arranged on the inner side of the left end of the filter drum (107) and meshed with the gear (203).
  7. 7. The negative pressure dust removing device for poultry feed production according to claim 5, wherein the dust removing assembly comprises a high-pressure air outlet nozzle (105), the high-pressure air outlet nozzle (105) is arranged on an air outlet pipe (102), penetrates into a filter cylinder (107) from the left wall of an air cylinder (104), is downwards arranged and is attached to the inner wall of the filter cylinder (107), and the air box (101) is provided with an ash outlet window (106) at one side close to the high-pressure air outlet nozzle (105).
  8. 8. The negative pressure type dust removing device for poultry feed production according to claim 1, wherein the dust removing assembly is further arranged in the air outlet pipe (102), the dust removing assembly comprises a second fixing frame (301), a rotating shaft (302), fan blades (304) and a spiral frame (303), the two second fixing frames (301) are fixedly connected in the air outlet pipe (102) in a bilateral symmetry mode, the rotating shaft (302) is rotatably connected between the two second fixing frames (301), and the fan blades (304) and the spiral frame (303) are fixedly connected on the rotating shaft (302).
  9. 9. The negative pressure type dust removing device for poultry feed production according to claim 8, wherein a collecting box (305) is fixedly connected to the left side of the bottom wall of the air outlet pipe (102), and a detachable magnetic sealing plate is arranged at the bottom of the collecting box (305) and is used for collecting dust conveyed by the dust removing assembly in a concentrated manner.

Description

Negative pressure type dust collector that poultry fodder production was used Technical Field The invention relates to the technical field of feed processing, in particular to a negative pressure type dust removing device for poultry feed production. Background In the production process of poultry feed, a large amount of dust is generated in the links of crushing, mixing, granulating, conveying and the like of raw materials. The dust not only causes raw material loss and reduces the product yield, but also forms a serious threat to the production environment and the health of operators. High-concentration dust is easy to form explosive mixture in a closed space, has great potential safety hazard, and can cause occupational diseases such as pneumoconiosis and the like after long-term inhalation. Therefore, the efficient and reliable dust removing device has become an indispensable environment-friendly and safe facility for the feed production line. At present, a bag-type dust collector is commonly adopted in the feed processing industry for dust treatment. However, the feed dust has the special feature that the dust produced by the common oil and water content in the raw materials has small particle size (often less than 10 μm) and strong adhesiveness. This sticky dust is very prone to forming a dense filter cake on the filter bag surface, leading to a rapid increase in filtration resistance. In order to maintain operation, the traditional bag-type dust remover is provided with a pulse back-blowing ash removing device. However, when the feed dust is treated, the conventional pulse back blowing has obvious limitation, and the ash removal effect is poor because the high-pressure gas has short action time and energy is difficult to penetrate through the viscous filter cake. Especially under the negative pressure working condition, the external atmospheric pressure can further press the filter cake on the surface of the filter material, so that the ash removal difficulty is doubled. For a long time, equipment is frequently blocked due to ash removal failure, the system air quantity is suddenly attenuated, and finally, the equipment is required to be shut down for manual cleaning, so that the production continuity and efficiency are seriously affected. In recent years, although the prior art attempts to introduce mechanical vibration or sonic ash removal as an aid, the problems of uneven ash removal, damage to filter materials, excessive energy consumption and the like often exist, and the problem of high-efficiency stripping of viscous dust in a negative pressure state cannot be fundamentally solved. Therefore, development of a novel dust removing structure capable of realizing active and efficient dust removal of filter materials under the negative pressure operation condition is needed to meet the actual requirements of modern poultry feed production by considering high filtration precision and long-period stable operation. Disclosure of Invention The invention provides a negative pressure type dust removing device for poultry feed production, which aims to overcome the defects that the dust removing is difficult and filter materials are easy to block when the traditional dust removing device is used for treating viscous feed dust under a negative pressure working condition. The negative pressure type dust removing device for the poultry feed production comprises a wind box, a filtering component, a driving component, a dust removing component and an air inlet window, wherein the filtering component is rotatably arranged in the wind box and is used for filtering dust-containing air flow, the driving component is arranged on the wind box and is used for driving the filtering component to intermittently rotate, the dust removing component is arranged on the wind box and is used for carrying out high-pressure pulse dust removal on the filtering component rotating to a specific position, the front side of the wind box is provided with the air inlet window, the left side of the wind box is fixedly connected with the air outlet pipe, an air pressure sensor used for monitoring filtering resistance is arranged in the air outlet pipe, and the air pressure sensor is electrically connected with the driving component and is used for automatically triggering rotation switching of the filtering component according to air pressure change. The filter assembly comprises a filter cylinder and twenty filter cloth plates, wherein the filter cylinder is rotationally connected in the bellows, the twenty filter cloth plates are uniformly rotationally connected to the filter cylinder along the circumferential direction, and the inner sides of the filter cloth plates are connected with the filter cylinder through springs which are bilaterally symmetrical. The filter cartridge is characterized by further comprising an air duct and a connecting plate, wherein the connecting plate is detachably arranged on the right side of the air box t