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CN-120838067-B - Vacuum waste heat sludge drying dust collector and vacuum waste heat sludge drying device

CN120838067BCN 120838067 BCN120838067 BCN 120838067BCN-120838067-B

Abstract

The application discloses a vacuum waste heat sludge drying dust collector and a vacuum waste heat sludge drying dust collector, which belong to the technical field of sludge drying, a communicating hole is arranged on a sealing plate in an air extraction sub-cavity, a frame body is arranged at the communicating hole, a plurality of arc plates capable of being spliced into a cylinder body are connected to the frame body through a rotating shaft, a torsion spring which enables the arc plates to extend outwards is arranged on the rotating shaft, a driving gear is arranged on one rotating shaft through a one-way bearing, a bottom plate is arranged at the bottom of the frame body, a brush is arranged in the frame body, a cloth bag frame is detachably arranged in the frame body, an outer gear ring is arranged on the cloth bag frame, a driving shaft is arranged on a dust collection shell, the driving shaft is meshed with the outer gear ring through a first gear set, and the driving shaft is meshed with the driving gear through a second gear set. The two directions of the driving shaft are different to be matched with the unidirectional bearing in a rotating way, so that the functions of ash removal and sealing are realized, the functions of cleaning the cloth bag on line and replacing the cloth bag on line without stopping the machine are further realized.

Inventors

  • JIA QINGQUAN
  • QIN SHUANG
  • HUANG WEICHENG
  • LI WEI
  • ZHUANG JINGWEI
  • WANG ZEXUAN

Assignees

  • 哈尔滨工大金涛科技股份有限公司

Dates

Publication Date
20260512
Application Date
20250801

Claims (12)

  1. 1. A vacuum waste heat sludge drying dust collector is characterized in that the dust collector (100) comprises a dust collector shell (101), an air suction cavity (103) and a dust collection cavity (104) are separated in the dust collector shell (101) through a sealing plate (102), a plurality of air suction sub-cavities (106) are separated in the air suction cavity (103) through a partition plate (105), a communication hole (107) is formed in the sealing plate (102) in the air suction sub-cavities (106), a frame body (108) is installed at the communication hole (107), a plurality of arc plates (110) capable of being spliced into a cylinder body are connected to the frame body (108) through a rotating shaft (109), the rotating shaft (109) is connected through a synchronous mechanism, a torsion spring which enables the arc plates (110) to expand outwards is arranged on the rotating shaft (109), a driving gear (111) is installed on the rotating shaft (109) through a one-way bearing, a bottom plate (112) is arranged at the bottom of the frame body (108), a brush is arranged in the frame body (108), a cloth bag (113) is detachably arranged in the frame body, a cloth bag (113) is meshed with a cloth bag (114), an outer gear ring (114) is meshed with the driving shaft (114), the driving shaft (115) is meshed with the driving gear (111) through a second gear set, a fixed sealing ring (116) is sleeved on the frame body (108), the fixed sealing ring (116) is located on the lower end face of the sealing plate (102), a limiting ring (117) with an L-shaped cross section is arranged in a sliding mode in the fixed sealing ring (116), a thrust spring (118) is arranged between the fixed sealing ring (116) and the limiting ring (117), the upper end of the fixed sealing ring (116) is communicated with the air suction sub-cavity (106) through a communication port (119), and a pressure relief vacuum breaking pipeline (120) is arranged on the air suction sub-cavity (106).
  2. 2. The vacuum waste heat sludge drying and dust removing device according to claim 1, wherein the air extraction sub-cavity (106) is communicated with the dust removing cavity (104) through a connecting pipeline (121), and a valve is arranged on the connecting pipeline (121).
  3. 3. The vacuum waste heat sludge drying and dust removing device according to claim 1, wherein a top cover (122) is separately arranged on the air extraction sub-cavity (106).
  4. 4. A vacuum waste heat sludge drying dust collector as claimed in claim 3, wherein the top cover (122) is provided with an observation window (123).
  5. 5. The vacuum waste heat sludge drying and dust removing device according to claim 1, wherein the air extraction sub-cavity (106) is provided with an air extraction opening (124).
  6. 6. The vacuum waste heat sludge drying and dust removing device according to claim 1, wherein a first sealing surface (125) is arranged on three sides of an inner cambered surface of the arc plate (110), and a second sealing surface (126) is arranged on the remaining single side of the outer cambered surface of the arc plate (110).
  7. 7. The vacuum waste heat sludge drying and dust removing device according to claim 1, wherein the frame body (108) comprises an upper ring body (127) and a lower ring body (128), the upper ring body (127) and the lower ring body (128) are connected through a plurality of connecting rods (129), and brushes are arranged on the sides, close to the cloth bags, of the connecting rods (129).
  8. 8. The vacuum waste heat sludge drying dust removal device according to claim 1, wherein a positioning cone (130) is arranged on the bottom plate (112), and the positioning cone (130) is matched with a central positioning groove at the bottom of the cloth bag frame (113).
  9. 9. The vacuum waste heat sludge drying and dust removing device according to claim 1, wherein a dust protection cover (131) for protecting the first gear set, the second gear set and the synchronizing mechanism is arranged in the air extraction sub-cavity (106).
  10. 10. A vacuum waste heat sludge drying apparatus comprising a vacuum waste heat sludge drying dust removal apparatus as claimed in any one of claims 1 to 9, wherein at least one of said dust removal apparatus (100) is mounted on a vacuum sludge drying mechanism (200).
  11. 11. The vacuum waste heat sludge drying apparatus as claimed in claim 10, wherein the vacuum sludge drying mechanism (200) is a vacuum drying box.
  12. 12. The vacuum waste heat sludge drying apparatus as claimed in claim 10, wherein the vacuum sludge drying mechanism (200) is a vacuum disc dryer.

Description

Vacuum waste heat sludge drying dust collector and vacuum waste heat sludge drying device Technical Field The invention belongs to the technical field of sludge drying, and particularly relates to a vacuum waste heat sludge drying dust removal device and a vacuum waste heat sludge drying device. Background Vacuum sludge drying is a technology for realizing sludge dewatering and volume reduction by utilizing a negative pressure environment, and is widely applied to sludge treatment generated in the fields of municipal sewage treatment, industrial wastewater treatment and the like. The core principle is that a vacuum state is established in a closed container, the boiling point of water is reduced, the water in the sludge is rapidly evaporated at a lower temperature, and water vapor is recovered through condensation, so that the water content of the sludge is obviously reduced, and the reduction and stabilization of the sludge are realized. The existing vacuum sludge drying needs to be additionally provided with a dust removal device between a vacuum system and sludge drying equipment in order to establish a vacuum environment, an external air source is adopted for cleaning a filter bag of the existing dust removal device to carry out pulse dust removal, but the external air source enters a vacuum cleaner under the vacuum environment to destroy pressure balance in the sludge drying device, flash evaporation temperature is increased, partial liquid drops are attached to a cloth bag of the cleaner to cause formation of local sludge, after the pressure of the sludge drying device is recovered, water in the partial sludge is flash evaporated again to cause partial agglomeration of the cloth bag, so that partial failure is formed, dust removal capacity is reduced, meanwhile, the vacuum dust removal device needs to be stopped for replacement when the cloth bag is replaced, online replacement cannot be carried out, and production efficiency is reduced. Disclosure of Invention The invention aims to provide a vacuum waste heat sludge drying and dedusting device and a vacuum waste heat sludge drying device so as to solve the problems in the prior art. The technical scheme is that the vacuum waste heat sludge drying dust removal device comprises a dust removal shell, wherein a dust removal cavity and a dust removal cavity are separated in the dust removal shell through a sealing plate, a plurality of air extraction sub-cavities are separated in the air extraction cavity through a partition plate, a communication hole is formed in the sealing plate in the air extraction sub-cavities, a frame body is installed at the communication hole, a plurality of arc plates capable of being spliced into a cylinder body are connected to the frame body through rotating shafts, the rotating shafts are connected through a synchronous belt mechanism or a chain wheel mechanism, torsion springs enabling the arc plates to spread outwards are arranged on the rotating shafts, a driving gear is installed on one rotating shaft through a one-way bearing, a bottom plate is arranged at the bottom of the frame body, a brush is arranged in the frame body, a cloth bag frame is detachably arranged in the frame body, a cloth bag is sleeved on the cloth bag frame, an outer gear ring is arranged on the dust removal shell, and the driving shaft is meshed with the outer gear through a first gear set, and is meshed with the outer gear through a second gear set. Further, the fixed sealing ring is sleeved on the frame body and is located on the lower end face of the sealing plate, a limiting ring with an L-shaped cross section is slidably arranged in the fixed sealing ring, a thrust spring is arranged between the fixed sealing ring and the limiting ring, the upper end of the fixed sealing ring is communicated with the air suction sub-cavity through a communication port, and a pressure relief vacuum breaking pipeline is arranged on the air suction sub-cavity. Further, the air extraction sub-cavity is communicated with the dust removal cavity through a connecting pipeline, and a valve is arranged on the connecting pipeline. Further, a top cover is arranged on the air extraction sub-cavity independently. Further, an observation window is arranged on the top cover. Further, the air extraction cavity is provided with an air extraction opening. Further, the three sides of the arc-shaped plate inner cambered surface are provided with first sealing surfaces, and the remaining single sides of the arc-shaped plate outer cambered surface are provided with second sealing surfaces. Further, the frame body comprises an upper ring body and a lower ring body, wherein the upper ring body and the lower ring body are connected through a plurality of connecting rods, and brushes are arranged on the sides, close to the cloth bags, of the connecting rods. Further, a locating cone is arranged on the bottom plate and matched with the central locating groove at the bottom of the cloth