Search

CN-121972480-A - Dust removal system for storage bin, dust removal control method of dust removal system and material stirring station

CN121972480ACN 121972480 ACN121972480 ACN 121972480ACN-121972480-A

Abstract

The invention belongs to the technical field of material dust removal and provides a bin dust removal system, a dust removal control method thereof and a material stirring station, wherein the dust removal control method of the system comprises the steps of acquiring dust concentration distribution data in a dust removal target area; according to the dust concentration distribution data, calculating a variation coefficient for representing the dust concentration distribution nonuniformity in a dust removal target area, comparing the variation coefficient with a preset threshold value, and increasing the opening of a dust collection mechanism in an area, which is higher than a set requirement, of the dust concentration in the dust removal target area when the variation coefficient is larger than the preset threshold value, and reducing the opening of the dust collection mechanism in other areas. The method concentrates the limited suction resource at the key position with the highest dust concentration through the control system, thereby improving the capturing and cleaning efficiency of high-concentration dust clusters.

Inventors

  • ZHANG YAO
  • GUO SHOUJUN
  • WANG RUI
  • WU DEZHI
  • ZHAO SHUXING

Assignees

  • 湖南中联重科混凝土机械站类设备有限公司

Dates

Publication Date
20260505
Application Date
20251225

Claims (10)

  1. 1. The dust removal control method of the dust removal system of the stock bin is characterized in that an opening of the stock bin (1) and a peripheral preset range area thereof are dust removal target areas (E), the dust removal system of the stock bin comprises a plurality of dust collection mechanisms (21) which act in the dust removal target areas (E) and are respectively provided with dust collection openings, the dust collection mechanisms (21) share the same dust collection main pipe (22), and the dust removal control method comprises the following steps: acquiring dust concentration distribution data in the dust removal target area (E); Calculating a variation coefficient for characterizing the dust concentration distribution non-uniformity in the dust removal target area (E) according to the dust concentration distribution data; Comparing the variation coefficient with a preset threshold value; when the variation coefficient is larger than the preset threshold value, the opening degree of the dust collection mechanism (21) acting on the region with the dust concentration higher than the preset requirement in the dust collection target region (E) is increased, and the opening degree of the dust collection mechanism (21) acting on other regions is reduced.
  2. 2. The dust removal control method of the bin dust removal system according to claim 1, wherein the region with the dust concentration higher than the set requirement comprises a core dust raising region (E1) which is composed of a highest dust concentration point and adjacent regions with concentration differences within the set value, and the predicted dissipation path region (E2) formed by dissipation of dust clusters in the core dust raising region (E1) in a future preset time length.
  3. 3. The dust removal control method of the silo dust removal system according to claim 2, wherein increasing the opening degree of the dust collection mechanism (21) acting on the region where the dust concentration in the dust removal target region (E) is higher than a set requirement specifically includes: The opening degree of the dust collection mechanism (21) acting in the core dust raising area (E1) is adjusted to be maximum, and the opening degree of the dust collection mechanism (21) acting in the escape path area (E2) is adjusted in a grading manner from large to small in a preset adjusting interval according to the distance from the dust collection mechanism to the core dust raising area (E1).
  4. 4. The dust removal control method of a bin dust removal system according to claim 2, characterized by reducing the opening degree of the dust collection mechanism (21) acting on other areas, specifically comprising: The opening degree of the dust collection mechanism (21) in the dust collection target area (E) except the core dust raising area (E1) and the dissipation path area (E2) is adjusted to 0.
  5. 5. The dust removal control method of the bin dust removal system according to any one of claims 1to 4, wherein after comparing the coefficient of variation with a preset threshold value, the dust removal control method further comprises: And when the variation coefficient is not greater than the preset threshold value, controlling each dust collection mechanism (21) acting on the dust collection target area (E) to work.
  6. 6. The dust removal control method of a bin dust removal system according to claim 5, wherein when the coefficient of variation is not greater than the preset threshold value, after controlling the dust collection mechanisms (21) acting in the dust removal target area (E) to all operate, the dust removal control method further comprises: detecting and judging whether the dust concentration in the dust removal target area (E) continuously decreases; If the concentration continuously decreases, based on the decreasing change trend of the dust concentration, fitting and calculating the predicted spending time period for the dust concentration to reach the target cleaning concentration.
  7. 7. The dust removal control method of a bin dust removal system according to claim 6, wherein after detecting and judging whether the dust concentration in the dust removal target area (E) continuously decreases, the dust removal control method further comprises: and if the dust concentration in the dust removing target area (E) is detected to be lower than the set safety concentration and the bin (1) is in a non-unloading or non-feeding state, adjusting the opening degree of each dust collecting mechanism (21) acting on the dust removing target area (E) to be minimum.
  8. 8. The utility model provides a storehouse dust pelletizing system which characterized in that, the storehouse dust pelletizing system includes: a dust collection main pipe (22); The dust collection mechanisms (21) act on a dust collection target area (E) of the storage bin (1), the dust collection mechanisms (21) are provided with dust collection openings, the dust collection mechanisms (21) are connected to the dust collection main pipe (22) through dust collection branch pipes (23), and valves for controlling the opening of the dust collection openings or the opening of the dust collection branch pipes (23) are arranged on the dust collection mechanisms (21); a controller electrically connected to the valves and used for controlling the opening of the valves in each dust collection mechanism (21) according to the dust collection control method of the bin dust collection system of any one of claims 1 to 7.
  9. 9. The silo dust removal system of claim 8, wherein the silo (1) comprises a lower discharge opening (1 a) for discharging, and the dust removal target area (E) is the lower discharge opening (1 a) and an area of a preset range around the lower discharge opening (1 a).
  10. 10. A material mixing plant, characterized in that it comprises a silo (1) and a silo dust removal system as defined in claim 8 or 9.

Description

Dust removal system for storage bin, dust removal control method of dust removal system and material stirring station Technical Field The invention belongs to the technical field of material dust removal, and particularly relates to a bin dust removal system, a dust removal control method thereof and a material stirring station. Background In the process of dry-mixed and semi-dry mixed material production, in order to prevent dust pollution, dust collection mechanisms with dust collection openings are usually arranged at openings (such as a feed opening and a discharge opening) of a storage bin and nearby the openings, so that a multi-point dust collection effect is formed. At present, a centralized design is generally adopted for a bin dust removal system. Specifically, the system drives all dust collection mechanisms in the relevant area to perform dust collection operation through a high-power central dust collector. During operation of such a system, the suction force of all the suction mechanisms remains the same regardless of the actual dust concentration at each suction mechanism. However, this design has the obvious technical disadvantage that the cleaner can provide a limited total suction force, and when all suction mechanisms in the associated area are simultaneously turned on, the limited suction force is shared, resulting in a limited suction force for each suction mechanism. Aiming at the main position of dust generation, the dust removal mode is likely to cause dust diffusion due to insufficient suction and low local trapping efficiency. Disclosure of Invention The invention provides a bin dust removing system, a dust removing control method thereof and a material stirring station, aiming at solving the technical problem that the existing bin dust removing system is not ideal in dust removing effect. In order to achieve the above object, in one aspect, the present invention provides a dust removal control method of a bin dust removal system, wherein a dust removal target area is defined in a bin opening and a peripheral preset range area of the bin opening, the bin dust removal system includes a plurality of dust collection mechanisms acting on the dust removal target area and respectively having dust collection openings, the plurality of dust collection mechanisms share a same dust collection manifold, and the dust removal control method of the bin dust removal system includes: s100, acquiring dust concentration distribution data in a dust removal target area; S200, calculating a variation coefficient for representing the dust concentration distribution nonuniformity in a dust removal target area according to the dust concentration distribution data; s300, comparing the variation coefficient with a preset threshold value; And S400A, when the variation coefficient is larger than a preset threshold value, increasing the opening of the dust collection mechanism acting on the region with the dust concentration higher than the set requirement in the dust collection target region, and reducing the opening of the dust collection mechanism acting on other regions. In the embodiment, the area with the dust concentration higher than the set requirement comprises a core dust raising area which is formed by the highest dust concentration point and the adjacent area with the periphery of the highest dust concentration point and the concentration difference within the set value, and the predicted dissipation path area formed by dissipation of dust clusters in the core dust raising area in the future preset time length. In this embodiment, the opening degree of the dust collection mechanism acting on the region in which the dust concentration in the dust collection target region is higher than the set requirement is increased, specifically including: the opening degree of the dust suction mechanism acting in the core dust raising area is adjusted to be maximum, and the opening degree of the dust suction mechanism acting in the escape path area is adjusted in a grading manner from large to small in a preset adjusting interval according to the distance from the dust suction mechanism to the core dust raising area. In this embodiment, the opening degree of the dust suction mechanism acting on the other area is reduced, specifically including: the opening degree of the dust suction mechanism in the other areas except the core dust raising area and the dissipation path area in the dust removal target area is adjusted to 0. In this embodiment, step S300, after comparing the variation coefficient with the preset threshold, the dust removal control method further includes: and S400B, controlling each dust collection mechanism acting on the dust collection target area to work when the variation coefficient is not greater than a preset threshold value. In this embodiment, step S400B further includes, when the coefficient of variation is not greater than the preset threshold, controlling the dust collection mechanism