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CN-122006392-A - Exhaust treatment device suitable for resin production

CN122006392ACN 122006392 ACN122006392 ACN 122006392ACN-122006392-A

Abstract

The invention discloses an exhaust gas treatment device suitable for resin production, and belongs to the technical field of exhaust gas treatment. The device aims at the characteristics of high viscosity, high dust concentration, inflammability and explosiveness of resin production waste gas, a sealed collecting space is formed between a feed port sealing cover and a storage tank body, a tangential air inlet structure of an ash bucket assembly is matched, dust-containing waste gas forms a rotary flow field before entering a filtering area, coarse and fine particles are primarily classified by utilizing centrifugal force, air blowing equipment arranged at the bottom of a conical ash bucket continuously supplies air upwards, resin dust is prevented from bridging at the bottom of the conical ash bucket, dust is uniformly distributed at the bottom of each filter cylinder through an air flow lifting effect, local load is avoided from being overlarge, micro negative pressure state in a reaction kettle is maintained, the risk of escaping of organic steam is avoided, the filter cylinder assembly is matched with a pulse ash cleaning system in a vertical installation mode, and dust falling off from ash is directly dropped into the ash bucket under the action of gravity.

Inventors

  • HE XIN
  • XIE YING
  • Su Sida
  • Qu Chuyang

Assignees

  • 江苏苏青水处理工程集团有限公司

Dates

Publication Date
20260512
Application Date
20260410

Claims (9)

  1. 1. Waste gas treatment device suitable for resin production, including collecting processing unit (1), dust removal purification unit (2) and centrifugal fan unit (3), its characterized in that, dust removal purification unit (2) are installed to one side of collecting processing unit (1), centrifugal fan unit (3) are installed to the other end of dust removal purification unit (2), dust removal purification unit (2) include air-purifying chamber (21) and install in filter cartridge subassembly (22) of air-purifying chamber (21) bottom, the bottom of filter cartridge subassembly (22) is connected with the up end of ash bucket subassembly (23).
  2. 2. The exhaust gas treatment device suitable for resin production according to claim 1, wherein the air purifying chamber (21) comprises an air storage bag (211) and a blowing pipe (212) transversely arranged on the outer end face of the air storage bag (211), an air outlet (213) is formed in the edge position of the bottom end face of the air storage bag (211), and a pattern plate (214) is formed in the middle position of the bottom of the air storage bag (211).
  3. 3. The exhaust gas treatment device suitable for resin production according to claim 1, wherein the filter cartridge assembly (22) comprises a filter cartridge body (221) and end covers (222) attached to the upper end surface and the lower end surface of the filter cartridge body (221), and vent holes (223) are formed in a surface array of the end covers (222).
  4. 4. A waste gas treatment device suitable for resin production according to claim 3, wherein the number of the vent holes (223) is consistent with the number of the flower plates (214), and the vent holes (223) are consistent with the positions of the flower plates (214).
  5. 5. The exhaust gas treatment device suitable for resin production according to claim 1, wherein the ash bucket assembly (23) comprises a conical ash bucket (231) arranged at the bottom of the end cover (222), an air inlet (232) is transversely formed in the edge position of the conical ash bucket (231), and air blowing equipment (233) is arranged at the bottom of the conical ash bucket (231) in a penetrating mode.
  6. 6. The exhaust gas treatment device suitable for resin production according to claim 2, wherein the inner cavity of the air outlet (213) is inserted with a centrifugal fan unit (3), the centrifugal fan unit (3) comprises an air inlet pipe (31) and a fan body (32) arranged at the other end of the air inlet pipe (31), the top of the fan body (32) is vertically provided with a discharge port (33), the bottom of the fan body (32) is provided with a base (34), and the outer side of the fan body (32) is transversely provided with a collecting device (35).
  7. 7. The exhaust gas treatment device suitable for resin production according to claim 6, wherein the fan body (32) comprises a volute (321) and a vent (322) formed in the upper end face of the volute (321), a driving motor (323) is transversely formed in the outer side of the volute (321), the driving motor (323) transmits power to an impeller shaft (325) through a transmission device (324), the other end of the impeller shaft (325) is transversely inserted into an inner cavity of the volute (321), an impeller (326) is mounted at the other end of the impeller shaft (325), and the impeller (326) can transversely rotate in the inner cavity of the volute (321) by taking the impeller shaft (325) as a fulcrum.
  8. 8. An exhaust gas treatment device suitable for resin production according to claim 6, wherein the base (34) comprises a base frame (341) and a middle cross beam (342) mounted at a middle position of the base frame (341), and both ends of the middle cross beam (342) transversely support mounting support legs (343).
  9. 9. The exhaust gas treatment device suitable for resin production according to claim 5, wherein the other end of the air inlet (232) is connected in series with the outer end wall of the collecting and treating unit (1), the collecting and treating unit (1) comprises a storage tank body (11) and a top cover (12) arranged on the upper end face of the storage tank body (11), a feeding port (13) is arranged at the top position of the top cover (12), and a sealing cover (14) is arranged on the upper end face of the feeding port (13).

Description

Exhaust treatment device suitable for resin production Technical Field The invention relates to the technical field of waste gas treatment, in particular to a waste gas treatment device suitable for resin production. Background In the resin production process, a large amount of dust-containing organic waste gas is generated in the reaction kettle feeding and stirring processes, and the waste gas contains sticky dust particles of synthetic resin, is often mixed with solid fillers such as glass fiber, calcium carbonate and the like, and is accompanied with inflammable and explosive organic vapors such as styrene, formaldehyde and the like. Because the resin dust has strong adhesiveness and agglomeration characteristics, and the dust concentration fluctuation is large in the production process, the traditional simple ventilation and dust removal mode is difficult to meet the environmental protection and safety production requirements, and filter material blockage, system dust accumulation and even dust explosion accidents are easily caused if the resin dust is improperly treated. At present, a filter cartridge type dust remover is commonly used for treating resin production waste gas in the industry, but the prior equipment has obvious defects that firstly, ash is discharged from an ash hopper automatically flows by gravity, and for resin dust with strong viscosity, hardening or bridging is extremely easy to form at the conical bottom, so that an ash discharge port is blocked, manual frequent cleaning is needed, secondly, when the inner cavity of a conventional filter cartridge is of a smooth cylinder or rectangular structure, and pulse blowing ash removal is carried out, vortex dead angles are formed at four corners or bottom areas by airflow, so that dust is not thoroughly removed, the local resistance of the filter cartridge is obviously increased after long-term operation, and the energy consumption of a system is increased. Disclosure of Invention The invention aims to solve the defects in the prior art, and provides an exhaust gas treatment device suitable for resin production. In order to achieve the purpose, the invention adopts the following technical scheme that the waste gas treatment device suitable for resin production comprises a collecting and treating unit, a dust removing and purifying unit and a centrifugal fan unit, wherein the dust removing and purifying unit is arranged on one side of the collecting and treating unit, the centrifugal fan unit is arranged on the other end of the dust removing and purifying unit, the dust removing and purifying unit comprises a gas purifying chamber and a filter cylinder assembly arranged at the bottom of the gas purifying chamber, and the bottom of the filter cylinder assembly is connected with the upper end face of an ash bucket assembly. Preferably, the air purifying chamber comprises an air storage bag and an injection pipe transversely arranged on the outer end face of the air storage bag, an air outlet is formed in the edge position of the bottom end face of the air storage bag, and a flower plate is arranged in the middle of the bottom of the air storage bag; The gas storage bag forms a closed pressure-bearing cavity, and clean gas penetrating through the filter material is collected and the pressure of the air flow is stabilized. The internal volume of the filter cartridge can buffer pressure fluctuation when the filter cartridge body is used for pulse ash removal, instantaneous pressure impact is prevented from being conducted to the air blowing equipment, and when the shell is directly used as a compressed air storage bag, an instantaneous large-flow air source can be provided for the blowing pipe, so that the arrangement of an independent air bag and a connecting pipeline is reduced. The flower plate is arranged at the middle position of the bottom of the air storage bag, and is used for supporting the upper opening of the filter cylinder body and realizing strict isolation between the dust-containing side and the clean air side through the sealing gasket. The flow channel length from each end cover to the air outlet is similar through the arrangement of the central area, the system resistance is distributed uniformly, and the overload of the local filter cylinder is avoided. The injection pipe is transversely arranged on the outer end face of the gas storage bag, external compressed air is instantaneously injected into the inner cavity of the filter cylinder to clean ash through the electromagnetic valve, the valve body is arranged externally, the valve body is in a clean environment and is prevented from being corroded by dust-containing hot air in the box body, the daily overhaul and maintenance are facilitated, the injection pipe is shortened in a mounting mode close to the gas storage bag shell, the pressure of pulse gas flow is guaranteed not to be attenuated, and the ash cleaning effect is improved. The air outlet is arranged at the edge of