Search

CN-121974172-A - Bulk material dust suppression device for dumper bottom cleaning

CN121974172ACN 121974172 ACN121974172 ACN 121974172ACN-121974172-A

Abstract

The invention relates to the technical field of railway transportation, in particular to a dust suppression device for a dumper bottom bulk material, which is matched with a dumper bottom bulk material chute through an open design of a dust suppression cover, provides a semi-closed dust control space for manual bottom cleaning operation, effectively blocks a large amount of visible dust generated in the process of shoveling from escaping outwards, meets the environmental protection policy requirement of ultralow emission in steel industry and the like, is internally provided with a plurality of groups of rotary sealing curtain mechanisms consisting of a cross rod, a rotating piece and a plastic door curtain, can be pushed open when a dumper door of a carriage is opened, automatically sags and resets when operation is intermittent, forms a dynamic sealing effect, greatly reduces the unorganized emission of an operation port, and simultaneously, the dry fog dust suppression mechanism arranged in the cover sprays micron-sized water fog through a main pipe, a connecting pipe and an atomizing nozzle, and the water fog is settled after being fully collided and bonded with suspended dust, thereby obviously reducing the dust concentration around the feed inlet.

Inventors

  • Qin Chongda
  • LIU YINGYING
  • CHI HONGLI
  • WANG XIWEI
  • Diao Fuxing
  • LIU CHANGYU

Assignees

  • 中冶北方（大连）工程技术有限公司

Dates

Publication Date
20260505
Application Date
20260302

Claims (10)

  1. 1. The utility model provides a clear car bottom bulk cargo dust suppression device of tipper, includes dust suppression cover (100), control module (700) and carriage bulk cargo door (800), dust suppression cover (100) orientation one side of carriage bulk cargo door (800) is open design, its characterized in that still includes: the clear vehicle bottom bulk material chute (200) is designed to be wide at the upper part and narrow at the lower part, and the clear vehicle bottom bulk material chute (200) is communicated with the bottom of the dust suppression cover (100); The sealing curtain mechanisms (300) are arranged in the dust suppression cover (100) in a number of and are of rotary design; A dry mist dust suppression mechanism (400) which is arranged in the dust suppression cover (100) and is composed of a plurality of pipes; The grid plate mechanism (500) is fixed at the joint between the dust suppression cover (100) and the cleaning vehicle bottom bulk chute (200); And a monitoring mechanism (600) provided inside the dust suppression cover (100).
  2. 2. The dumper bottom cleaning bulk dust suppression device according to claim 1, wherein the sealing curtain mechanism (300) comprises: A cross bar (310) bolted to the interior of the dust suppression shroud (100); A rotating member (320) interconnected with a surface of the crossbar (310); A plastic door curtain (330) is fixed with the rotating piece (320).
  3. 3. The device for suppressing dust in a vehicle bottom bulk material of a vehicle dumper according to claim 2, wherein the rotating member (320) is composed of a cylinder body (321), connecting plates (322) and through holes (323), the cylinder body (321) and the surface of the cross rod (310) are mutually fixed through bearings, the connecting plates (322) are two groups and are mutually welded with the cylinder body (321), the through holes (323) are formed in the surface of the connecting plates (322), and positioning holes (331) matched with the through holes (323) are formed in the surface of the plastic door curtain (330).
  4. 4. The dumper bottom cleaning bulk dust suppression device according to claim 1, wherein the dry fog dust suppression mechanism (400) comprises: -a manifold (410) extending through the dust suppression shroud (100); a three-way interface (420) in communication with the manifold (410); A connecting pipe (430) which is communicated with the three-way joint (420); the atomizing nozzles (440) are arranged in a plurality and communicated with the surface of the connecting pipe (430); a fixing plate (450) sleeved and fixed on the surface of the connecting pipe (430) to fix the connecting pipe (430) and the inner wall of the dust suppression cover (100) to each other; and the electromagnetic valve (460) is communicated with one end of the main pipe (410) away from the three-way joint (420).
  5. 5. The device for suppressing dust in a vehicle bottom bulk material of a dumper according to claim 4, wherein the control module (700) is electrically connected with the electromagnetic valve (460).
  6. 6. The device for suppressing dust in a vehicle bottom bulk material of a dumper according to claim 1, wherein the grid plate mechanism (500) is composed of a frame (510) and grids (520), the frame (510) is bolted to the joint between the dust suppression cover (100) and the vehicle bottom bulk material chute (200), and the grids (520) are several in number and welded to the inner side of the frame (510).
  7. 7. The device for suppressing dust in a vehicle bottom bulk material of a dumper according to claim 6, wherein the top of the grid (520) is pointed.
  8. 8. The device for suppressing dust in a vehicle bottom bulk material of a dumper according to claim 1, wherein the monitoring mechanism (600) is composed of a transverse tube (610), an infrared sensor (620) and a vibration motor (630), the transverse tube (610) is bolted to the inside of the dust suppression cover (100), the infrared sensor (620) is fixed to a position, close to the end, inside the transverse tube (610), and the vibration motor (630) is bolted to the inside of the transverse tube (610).
  9. 9. The device for suppressing dust in a dumper bottom bulk material of a dumper according to claim 8, wherein the transverse tube (610) is a stainless steel round tube.
  10. 10. The device for suppressing dust in a vehicle bottom bulk material of a dumper according to claim 8, wherein the infrared sensor (620) is electrically connected with the control module (700).

Description

Bulk material dust suppression device for dumper bottom cleaning Technical Field The invention relates to the technical field of railway transportation, in particular to a dumper bottom bulk material dust suppression device. Background The dumper is used as common mechanical railway open wagon unloading equipment and is widely applied to industries such as steel, coal, ports and the like. Because the railway transportation distance is longer, the open wagon lacks to seal, the transportation environment (such as low temperature, humidity, etc.) is comparatively complicated, and partial materials (such as viscous ore, wet coal, etc.) have the characteristics that viscosity is big, and the fluctuation of water content is big, and the carriage is unloaded through the tipper after, still can adhere to a large amount of bonding bulk cargo often at the bottom of the wagon. The dust removal car dumper disclosed by the retrieved Chinese patent number CN119059314A comprises a car dumper unit and a power purification unit, wherein a dust guard is arranged on the side wall of the car dumper unit, an air inlet and a discharge opening are formed in the side wall of the car dumper unit, a dust source area is arranged in the car dumper unit, a power purification unit is arranged at a position, close to the discharge opening, on one side of the car dumper unit, a dust separation plate is arranged on the outer wall of the power purification unit, the bottom of the dust separation plate is fixedly connected with the ground of a travelling crane, a vibration wall is fixedly connected with the bottom of the ground of the travelling crane, an air suction opening is formed in one side, close to the discharge opening, of the power purification unit, and a filter bag and a fan are arranged inside the power purification unit. According to the invention, air is sucked from the air inlet, then enters the purification area from the discharge opening through the dust source area above the material, and then the dust particles are filtered through the filter bag, so that the problems that additional dehumidification work is required and unnecessary additional work is generated due to the fact that the dust is reduced by adopting water spraying are solved. At present, the treatment modes of bulk materials at the bottom of a cleaning truck are mainly divided into two types, namely manual shoveling and conveying to an open-air field for stacking, and then centralized conveying by a forklift, wherein the mode is low in automation degree, large in occupied area, serious in dust unstructured emission and limited by an ultralow emission policy, and conveying by a cleaning and conveying system consisting of a chute and a tape machine, wherein the conveying efficiency is improved, a large amount of suspended dust is generated in the process of manually shoveling the bulk materials into the chute, the dust concentration can reach 50-150mg/m 3, the working environment is seriously polluted, and the respiratory system health of field operators is also damaged. The existing dust suppression and dust removal device mainly solves the dust pollution of the main body operation area of the dumper, the cleaning link of the bulk material at the bottom of the dumper does not take effective measures, the problem of the dust dissipation key point of the bulk material chute feed inlet at the bottom of the dumper is not solved, the ultralow emission requirement of the current steel industry is definitely specified, and the dust removal or dust suppression measures are adopted for the loading and unloading vehicle and the material conveying drop point, so that the dust control of the cleaning link of the bulk material at the bottom of the dumper needs a solution with strong pertinence, simple structure and easy implementation. Disclosure of Invention The invention aims to provide a bulk material dust suppression device for a dumper bottom, which aims to solve the problems in the background technology. In order to achieve the purpose, the invention provides the technical scheme that the dust suppression device for the bulk material at the bottom of the dumper, which comprises a dust suppression cover, a control module and a carriage bulk material door, wherein one side of the dust suppression cover, which faces the carriage bulk material door, is of an open design, and the dust suppression device further comprises: The clear vehicle bottom bulk material chute is designed to be wide at the upper part and narrow at the lower part, and is communicated with the bottom of the dust suppression cover; The sealing curtain mechanisms are arranged in the dust suppression cover in a number of and are of a rotary design; the dry fog dust suppression mechanism is arranged in the dust suppression cover and is composed of a plurality of pipelines; the grid plate mechanism is fixed at the joint between the dust suppression cover and the bulk material chute at the bottom of the ve