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CN-121988104-A - Pretreatment filtering device for flue gas desulfurization

CN121988104ACN 121988104 ACN121988104 ACN 121988104ACN-121988104-A

Abstract

The invention relates to the technical field of flue gas purification, in particular to a pretreatment filtering device for flue gas desulfurization, which comprises a treatment box, wherein a mounting frame is fixedly arranged in the bottom end of the treatment box, a plurality of first rotating shafts are fixedly sleeved with a splitter plate, one side of the mounting frame is fixedly provided with a control mechanism, the inside of the mounting frame is fixedly provided with a plurality of uniformly distributed dehumidification plates, the bottom of the mounting frame is provided with a drainage tank, a shielding mechanism is arranged below the drainage tank, one side of the shielding mechanism is provided with a first transmission mechanism, and the inside of the mounting frame is provided with a cleaning mechanism and a second transmission mechanism. According to the invention, through the plurality of dehumidification plates, the dust collection cloth bag is smooth in filter holes and excellent in air permeability in a long-term continuous working state, so that the device can stably exert the high efficiency of flue gas filtration and dust collection in the manufacturing field of special equipment for protecting the atmosphere pollution environment.

Inventors

  • AN CHANGWEI
  • SUN DAN
  • LI MING
  • CAO XU
  • LIU DEMIN

Assignees

  • 辽宁科技学院

Dates

Publication Date
20260508
Application Date
20260407

Claims (8)

  1. 1. A pretreatment filtering device for flue gas desulfurization comprises a treatment box (1) and is characterized in that an installation frame (7) is fixedly installed in the bottom end of the treatment box (1), one end in the installation frame (7) is rotatably provided with a plurality of uniformly distributed rotating shafts (8), the outside of the rotating shafts (8) is fixedly sleeved with a splitter plate (9), one side of the installation frame (7) is fixedly provided with a control mechanism, the inside of the installation frame (7) is fixedly provided with a plurality of uniformly distributed dehumidification plates (16), the bottom of the installation frame (7) is provided with a drainage groove (17), the lower part of the drainage groove (17) is provided with a shielding mechanism, one side of the shielding mechanism is provided with a first transmission mechanism, the inside of the installation frame (7) is provided with a cleaning mechanism and a second transmission mechanism, and two sides of the inner wall of the installation frame (7) are provided with a plurality of uniformly distributed grooves (31).
  2. 2. The pretreatment filter device for flue gas desulfurization according to claim 1, wherein the inside of the treatment box (1) is fixedly provided with a pulse ash cleaner (2) and a plurality of dust collection cloth bags (3) which are uniformly distributed, one side of the top of the treatment box (1) is communicated with an air outlet pipeline (4), the bottom of one side of the treatment box (1) far away from the air outlet pipeline (4) is communicated with an air inlet pipeline (5), the positions of the air inlet pipeline (5) and the mounting frame (7) are mutually corresponding, and the bottom of the treatment box (1) is communicated with an ash discharge pipeline (6).
  3. 3. The pretreatment filter device for flue gas desulfurization according to claim 1, wherein the control mechanism comprises an air cylinder (10) and a plurality of transmission rods (14) which are uniformly distributed, the air cylinder (10) is fixedly connected with the installation frame (7), a movable support (11) is fixedly arranged at the telescopic shaft end of the air cylinder (10), guide rods I (12) are slidably sleeved at two ends of the movable support (11), two guide rods I (12) are fixedly connected with the installation frame (7), a plurality of transmission shafts I (13) which are uniformly distributed are fixedly arranged at one end of the movable support (11) far away from the air cylinder (10), the transmission rods (14) are fixedly arranged at the outer part of one end of a corresponding rotating shaft I (8), transmission grooves I (15) are formed in the transmission shafts I (13), and the transmission shafts I (13) are respectively arranged in the corresponding transmission grooves I (15).
  4. 4. The pretreatment filter device for flue gas desulfurization according to claim 3, wherein the shielding mechanism comprises a second rotating shaft (18), the second rotating shaft (18) is rotatably mounted at the bottom of the mounting frame (7), a shielding plate (19) is fixedly sleeved outside the second rotating shaft (18), the shielding plate (19) is matched with the drainage groove (17), a plurality of uniformly distributed springs (20) are fixedly mounted at the bottom of the shielding plate (19), and the bottoms of the springs (20) are fixedly connected with the mounting frame (7).
  5. 5. The pretreatment filter device for flue gas desulfurization according to claim 4, wherein the first transmission mechanism comprises a transmission block (22), a transmission groove II (23) is formed in the transmission block (22), the transmission groove II (23) is obliquely arranged, a transmission shaft II (24) is arranged in the transmission groove II (23), one side of the transmission shaft II (24) is fixedly connected with the movable support (11), two guide rods II (25) are fixedly arranged at two ends of the bottom of the transmission block (22), two guide rods II (25) are slidably connected with one end of the mounting frame (7), a connecting support (26) is fixedly arranged at the bottoms of the two guide rods II (25) together, a limit rod (21) is fixedly arranged at the bottom of the connecting support (26), and the limit rod (21) is arranged below the shielding plate (19).
  6. 6. The pretreatment filter device for flue gas desulfurization according to claim 3, wherein the cleaning mechanism comprises a water inlet pipe (27), a valve (28) is fixedly arranged at the top of the water inlet pipe (27), two shunt pipes (29) are respectively communicated with two ends of the water inlet pipe (27), the two shunt pipes (29) are respectively fixedly arranged in two ends of the installation frame (7), a plurality of evenly distributed spray heads (30) are fixedly arranged at one side, close to each other, of the two shunt pipes (29), a plurality of grooves (31) respectively correspond to the positions of the corresponding dehumidification plates (16), and a plurality of spray heads (30) respectively correspond to the positions of the corresponding dehumidification plates (16).
  7. 7. The pretreatment filter device for flue gas desulfurization according to claim 6, wherein the second transmission mechanism comprises two shielding brackets (32) and a U-shaped bracket (34), wherein guide rods three (33) are sleeved at two ends of the two shielding brackets (32) in a sliding manner, the guide rods three (33) are fixedly arranged in the installation frame (7), the two shielding brackets (32) are respectively matched with the corresponding grooves (31), two ends of the U-shaped bracket (34) are respectively connected with the bottom of the installation frame (7) in a sliding manner, one end of the U-shaped bracket (34) is fixedly connected with the movable bracket (11), and two ends of the top of the U-shaped bracket (34) are respectively movably connected with the two shielding brackets (32).
  8. 8. The pretreatment filter device for flue gas desulfurization according to claim 7, wherein sliding rods (35) are fixedly arranged at the bottoms of one sides of the two shielding brackets (32) which are far away from each other, sliding blocks (36) are sleeved outside the two sliding rods (35) in a sliding manner, and the bottoms of the two sliding blocks (36) are rotatably connected with two ends of the top of the U-shaped bracket (34).

Description

Pretreatment filtering device for flue gas desulfurization Technical Field The invention relates to the technical field of flue gas purification, in particular to a pretreatment filtering device for flue gas desulfurization. Background The core filtering and purifying device for flue gas desulfurization pretreatment mainly comprises four functions of dust removal, cooling, tempering and demisting, so as to prevent the subsequent desulfurization system from being blocked, worn and corroded. The bag-type dust remover is used as core equipment for flue gas desulfurization pretreatment fine filtration dust removal in the manufacturing field of special equipment for air pollution environment protection, and in the working condition of high-humidity flue gas (such as waste incineration, raw gas in a coking plant and front wet desulfurization in a coal-fired power plant), the humidity of the flue gas is high, so that the moisture in the flue gas needs to be removed by special dehumidification equipment before the flue gas is introduced into the bag-type dust remover, but in the process of introducing the flue gas into the bag-type dust remover, the flue gas still carries part of the moisture due to the reasons of secondary condensation caused by heat dissipation and temperature reduction of a pipeline, condensation caused by the contact of the flue gas with the wall surface of a low-temperature box body and the like, and the flue gas containing the moisture is mixed with dust to form sticky dust clusters, is adsorbed and bonded on the surface of a dust removing bag, and in a long-term continuous working state, the sticky dust is accumulated and is hardened continuously, the dust filtering hole of the dust removing bag is blocked, the air permeability is reduced, and finally the dust removing efficiency is greatly reduced. Disclosure of Invention The invention aims to provide a pretreatment filter device for flue gas desulfurization, which is used for solving the problems that in the process of introducing a bag-type dust collector, the flue gas can still carry partial moisture due to the reasons of secondary condensation caused by heat dissipation and temperature reduction of a pipeline, condensation caused by contact of the flue gas with the wall surface of a low-temperature box body, and the like, the filter holes of the dust collection bag are blocked, the air permeability is reduced, and finally the dust collection efficiency is greatly reduced. The pretreatment filtering device for flue gas desulfurization comprises a treatment box, wherein a mounting frame is fixedly arranged in the bottom end of the treatment box, one end in the mounting frame is rotatably provided with a plurality of uniformly distributed rotating shafts I, a splitter plate is fixedly sleeved outside each rotating shaft I, a control mechanism is fixedly arranged on one side of the mounting frame, a plurality of uniformly distributed dehumidification plates are fixedly arranged in the mounting frame, a drainage groove is formed in the bottom of the mounting frame, a shielding mechanism is arranged below the drainage groove, a first transmission mechanism is arranged on one side of the shielding mechanism, a cleaning mechanism and a second transmission mechanism are arranged in the mounting frame, and a plurality of uniformly distributed grooves are formed in two sides of the inner wall of the mounting frame. Preferably, the inside fixed mounting of processing case has pulse ash cleaner and a plurality of evenly distributed's dust removal sack, one side intercommunication of processing case top has the air-out pipeline, the bottom intercommunication that processing case kept away from one side of air-out pipeline has the air inlet pipeline, the position of air inlet pipeline and installing frame corresponds each other, the bottom intercommunication of processing case has the ash discharge pipeline. Preferably, the control mechanism comprises a cylinder and a plurality of evenly distributed transmission rods, the cylinder is fixedly connected with the mounting frame, a movable support is fixedly arranged at the telescopic shaft end of the cylinder, guide rods I are respectively sleeved at two ends of the movable support in a sliding mode, the guide rods I are fixedly connected with the mounting frame, a plurality of evenly distributed transmission shafts I are fixedly arranged at one ends of the movable support, which are to be far away from the cylinder, of the movable support, the transmission rods are respectively and fixedly arranged outside one end of each corresponding rotation shaft, transmission grooves I are respectively formed in the transmission rods, and the transmission shafts I are respectively arranged inside the corresponding transmission grooves I. Preferably, the shielding mechanism comprises a second rotating shaft, the second rotating shaft is rotatably arranged at the bottom of the installation frame, a shielding plate is