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CN-121974178-A - Lime ammonia automatic material preparation and dust removal device and dust removal method thereof

CN121974178ACN 121974178 ACN121974178 ACN 121974178ACN-121974178-A

Abstract

The invention belongs to the technical field of transportation, in particular to an automatic lime ammonia preparation and dust removal device which comprises a conveyor belt and a dust prevention part, wherein the dust prevention part comprises a cover plate arranged at the end part of the conveyor belt, the dust prevention part further comprises a dust prevention component, the dust prevention component comprises a first pipeline arranged in the cover plate, a second pipeline arranged on the side wall of the cover plate and provided with a plurality of air nozzles, a filtering structure arranged on the cover plate, and a pressure regulating structure arranged on the cover plate, wherein the first pipeline is communicated with the pressure regulating structure, the pressure regulating structure is in reciprocating change, dust-containing gas in the cover plate enters the first pipeline through a first one-way valve when the pressure is low, dust-containing gas in the first pipeline enters the second pipeline through a second one-way valve when the pressure is high, is filtered by the filtering structure and then enters the second pipeline, and is sprayed to the lower part of the conveyor belt through the air nozzles, residual dust on the conveyor belt is blown into the cover plate, and meanwhile, the gas forms a gas curtain at the second pipeline, so that high-efficiency closed loop treatment of dust is realized.

Inventors

  • ZHOU HUA
  • YIN JIAMING
  • CHEN SONGYU
  • GAO JIAN

Assignees

  • 宁夏恒泰生物科技有限公司

Dates

Publication Date
20260505
Application Date
20260407

Claims (9)

  1. 1. Automatic lime ammonia preparation and dust collector, including conveyer belt (1) and dustproof portion, conveyer belt (1) are used for the conveying of preparing materials, dustproof portion is including setting up cover plate (3) of conveyer belt (1) tip, a serial communication port, dustproof portion still includes dustproof subassembly (2), dustproof subassembly (2) include: a first pipeline (21) arranged in the cover plate (3), wherein a second one-way valve (23) and a plurality of first one-way valves (22) are arranged on the first pipeline (21); a second pipeline (24) arranged on the side wall of the cover plate (3) and provided with a plurality of air nozzles; -a filtering structure (25) mounted on said cover plate (3); install pressure regulation structure (26) on cover plate (3), pipeline (21) with pressure regulation structure (26) intercommunication, pressure regulation structure (26) reciprocating type change, and be in pipeline (21) No. one when the low pressure, dust-laden gas is in the high pressure, dust-laden gas by filtration structure (25) filters the back and gets into in pipeline (24) No. two to spout through the jet to conveyer belt (1) below, will residual dust blows in cover plate (3) on conveyer belt (1), and gaseous air curtain is formed here simultaneously.
  2. 2. The automatic lime ammonia preparation and dust removal device according to claim 1, wherein the first pipeline (21), the filtering structure (25) and the pressure regulating structure (26) in the dust prevention assembly (2) comprise two groups, and the two groups work alternately.
  3. 3. An automatic lime ammonia preparation and dust removal device according to claim 1, wherein the dust prevention part further comprises a collecting box (4) arranged on the side wall of the cover plate (3), the filtering structure (25) further comprises a shell (251) fixedly arranged on the collecting box (4), the filtering pipes (252) are rotatably arranged in the shell (251), two adjacent filtering pipes (252) are rotatably connected, a plurality of isolating plates (253) are annularly arranged on the filtering pipes (252), the first pipeline (21) is communicated with the upper end of the shell (251), the second pipeline (24) is communicated with the filtering pipes (252), the collecting box (4) is communicated with the lower end of the shell (251), after dust is filtered by the filtering pipes (252), clean gas is intercepted between the two adjacent isolating plates (253), enters the second pipeline (24) through the filtering pipes (252), the filtering pipes (252) are rotatably connected to the isolating plates 253, and the dust falls down to the collecting box (4).
  4. 4. The automatic lime ammonia preparation and dust removal device as set forth in claim 3, wherein the dust prevention part further comprises: an air outlet hole (5) arranged at the top of the collecting box (4); a filter cloth (6) arranged on the air outlet hole (5); the baffle plate (7) is slidably arranged on the air outlet hole (5), and the baffle plate (7) is connected with the filter cloth (6) in a part of positions; a first return spring (8) mounted between the baffle (7) and the collection box (4); and the cover plate (10) is arranged on the side wall of the cover plate (3), and the cover plate (10) is positioned above the collecting box (4).
  5. 5. The automatic lime ammonia preparation and dust removal device according to claim 4, wherein a detection component (9) for detecting the dust content of gas is arranged on the shell (251), the dust prevention component (2) comprises a plurality of groups, and the opening number of the dust prevention component (2) is positively correlated with the dust content of gas detected by the detection component (9), so that dust removal adjustment according to requirements is realized.
  6. 6. The automatic lime ammonia preparation and dust removal device according to claim 5, wherein the detection assembly (9) comprises: a push rod (91) slidably mounted on the housing (251), one end of the push rod (91) being located within the housing (251), the other end of the push rod (91) being located outside the housing (251); a return spring (92) installed between the push rod (91) and the housing (251); a retaining plate (93) slidably mounted on said first conduit (21); An inductor (94) mounted on the cover plate (10).
  7. 7. The automatic lime ammonia preparation and dust removal device as set forth in claim 1, wherein the pressure regulating structure (26) comprises: A third pipeline (261) fixedly mounted on the cover plate (3), wherein the third pipeline (261) is communicated with the first pipeline (21); a piston (262) slidably mounted within the third conduit (261); -rotating a threaded rod (263) mounted on the cover plate (3), the threaded rod (263) being in threaded connection with the piston (262); A gear (264) mounted on the threaded rod (263), the gears (264) of the pressure regulating structures (26) of several groups being in meshed connection.
  8. 8. The automatic lime ammonia preparation and dust removal device according to claim 7, wherein a part of gears (264) of the pressure adjusting structure (26) are fixedly connected with the threaded rods (263), the other part of gears (264) are rotatably connected with the threaded rods (263), a first connecting piece (265) is fixedly installed on the gears (264) rotatably connected with the threaded rods (263), a second connecting piece (266) is slidably installed on the corresponding threaded rods (263), after the first connecting piece (265) and the second connecting piece (266) are in contact, the gears (264) rotate to drive the threaded rods (263) to synchronously rotate, electromagnets (267) are installed on the corresponding third pipelines (261), and the electromagnets (267) are used for driving the second connecting piece (266) to move.
  9. 9. The automatic lime ammonia preparation and dust removal method is suitable for the automatic lime ammonia preparation and dust removal device disclosed in the claims 1-8, and is characterized by comprising the following steps: S1, periodically switching a high-low pressure state by a pressure regulating structure (26), and sucking dust-containing gas in a cover plate (3) into a first pipeline (21) in a low-pressure stage; S2, enabling dust-containing gas to penetrate through the filter tube (252) to realize gas-dust separation, enabling part of the gas to enter the second pipeline (24) and part of the gas to enter the collecting box (4); S3, clean gas entering the second pipeline (24) is sprayed to the lower part of the conveyor belt (1) through a gas nozzle, dust remained on the conveyor belt (1) is blown into the cover plate (3), and meanwhile, the gas forms a gas curtain at the gas nozzle to prevent dust in the cover plate (3) from escaping; S4, rotating the filter tube (252) to enable a chamber for intercepting dust to face downwards, and enabling the dust to fall into the collecting box (4) under the action of self gravity and back blowing of part of gas entering the collecting box (4) for collecting; s5, alternately working the dustproof components (2) to ensure continuous operation; S6, the detection assembly (9) senses the change of dust content, when the dust content rises, the electromagnet (267) is triggered to start, the corresponding pressure adjusting structure (26) is driven to start, and the capacity expansion of the dust prevention assembly (2) according to the requirement is realized.

Description

Lime ammonia automatic material preparation and dust removal device and dust removal method thereof Technical Field The invention belongs to the field of transportation, and particularly relates to an automatic lime ammonia preparation and dust removal device and a dust removal method thereof. Background Lime ammonia is called calcium cyanamide, is an important inorganic chemical raw material, is mainly used for preparing nitrogen fertilizer and producing cyanamide compounds, takes quicklime, coke and industrial nitrogen as core raw materials, mixes the crushed quicklime with the coke, reacts in a high-temperature air-isolated environment of an electric arc furnace to generate calcium carbide, and in a material preparation process, the material is conveyed by a conveyor belt, and the material drop at the end part of the conveyor belt can generate a large amount of dust, so that a dust removing device is matched to realize effective treatment of the dust. One patent application with the publication number of CN119038107A discloses a wet coal dust removal device based on coal transportation equipment, which comprises a clamp and a driving component, wherein the clamp is arranged on a frame of a conveyor belt, a spray pipe is arranged on the clamp, the driving component comprises an abutting wheel, a main shaft, a transmission rod, a transmission gear and a first elastic piece, the transmission rod is longitudinally and slidably connected to the clamp, the transmission gear is coaxially fixedly connected with the spray pipe and meshed with the transmission rod, two ends of the main shaft are respectively and rotatably connected with the abutting wheel and the transmission rod, water sprayed out of the spray pipe is driven by the conveyor belt to form a fan-shaped spray area, the fan-shaped spray area can cover coal at a falling position, and dust generated at the falling position can be moistened and settled. According to the scheme, water spraying is used for wetting and settling dust, on one hand, the water content of coke raw materials can be directly increased, caking and adhesion of coke are caused, the particle size distribution is uneven, the air permeability of a reaction system in a subsequent electric arc furnace is damaged, the quality of a final lime ammonia product is affected, on the other hand, dust and water can form slurry after being mixed, the slurry is easy to adhere to a conveyor belt, a clamp and the ground, equipment is adhered and blocked, the field environment is messy, the equipment cleaning and maintenance cost is increased, and meanwhile, water resources are required to be continuously consumed, and the operation cost is high. Therefore, the invention provides an automatic lime ammonia preparation and dust removal device and a dust removal method thereof. Disclosure of Invention In order to overcome the deficiencies of the prior art, at least one technical problem presented in the background art is solved. The technical scheme includes that the lime ammonia automatic material preparation and dust removal device comprises a conveying belt and a dust prevention part, wherein the conveying belt is used for conveying materials, the dust prevention part comprises a cover plate arranged at the end part of the conveying belt, the dust prevention part further comprises a dust prevention component, the dust prevention component comprises a first pipeline arranged in the cover plate, a second one-way valve and a plurality of first one-way valves are arranged on the first pipeline, a second pipeline arranged on the side wall of the cover plate and provided with a plurality of air nozzles, a filtering structure arranged on the cover plate, a pressure adjusting structure arranged on the cover plate is communicated with the first pipeline, the pressure adjusting structure is in reciprocating change, dust-containing gas enters the first pipeline when the pressure is low, the dust-containing gas is filtered by the filtering structure and enters the second pipeline when the pressure is high, the dust-containing gas is sprayed to the lower part of the conveying belt through the air nozzles, and the residual dust on the conveying belt is blown to the second pipeline when the dust curtain is formed at the second position. Preferably, the first pipeline, the filtering structure and the pressure regulating structure in the dustproof assembly comprise two groups, and the two groups work alternately. Preferably, the dust-proof part further comprises a collecting box arranged on the side wall of the cover plate, the filtering structure further comprises a shell fixedly arranged on the collecting box, the filtering pipes are rotatably arranged in the shell, two adjacent filtering pipes are rotatably connected, a plurality of isolating plates are arranged on the filtering pipes in an annular array mode, the first pipeline is communicated with the upper end of the shell, the second pipeline is communicated wit