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CN-122006355-A - Waste gas treatment device and method for asphalt concrete production

CN122006355ACN 122006355 ACN122006355 ACN 122006355ACN-122006355-A

Abstract

The invention relates to the technical field of waste gas separation treatment, and discloses a waste gas treatment device for asphalt concrete production, which comprises an outer shell, wherein the outer shell comprises an outer shell, a gas inlet and a gas outlet for flue gas are respectively arranged at the upper end and the lower end of two sides of the outer shell, a driving motor is fixedly arranged at the top end of the outer shell, a discharge hopper is fixedly arranged at the bottom end of the outer shell, and a supporting transverse plate is fixedly arranged above the inner part of the outer shell.

Inventors

  • Song Zhenkang
  • FANG JINGMIN

Assignees

  • 山东林民公路材料有限公司

Dates

Publication Date
20260512
Application Date
20260408

Claims (10)

  1. 1. The exhaust gas treatment device for asphalt concrete production comprises an outer shell (1) and is characterized by comprising the outer shell (1), wherein an air inlet and an air outlet for flue gas are respectively arranged at the upper end and the lower end of two sides of the outer shell (1), a driving motor (2) is fixedly arranged at the top end of the outer shell (1), a discharging hopper (3) is fixedly arranged at the bottom end of the outer shell (1), a supporting transverse plate (4) is fixedly arranged above the inner part of the outer shell (1), an outer frame component (5) is fixedly arranged at the bottom end of the supporting transverse plate (4), square grooves are uniformly formed in the supporting transverse plate (4), a cross bracket (6) is fixedly arranged in the square grooves, a driving component (7) is movably sleeved on the cross bracket, a triggering component (8) is movably sleeved on the driving component (7), and a knocking cleaning component (9) is uniformly arranged inside the outer frame component (5).
  2. 2. The exhaust gas treatment device for asphalt concrete production according to claim 1, wherein the outer frame assembly (5) comprises a frame body (51), ventilation grid grooves (52) are uniformly formed in the frame body (51), a supporting base plate (53) is arranged on the outer side face of the frame body (51), a filter cloth bag (54) is fixedly arranged on the outer side face of the supporting base plate (53), and an end block (55) is fixedly arranged in the frame body (51).
  3. 3. The exhaust gas treatment device for asphalt concrete production according to claim 2, wherein the top end of the frame main body (51) is fixedly mounted with the bottom end of the supporting transverse plate (4) in a sealing manner, the outer surface of the frame main body (51) provided with one end outside the coverage area of the ventilation grid groove (52) is concave, the supporting base plate (53) is embedded in the concave part and is detachably connected, and the knocking cleaning assembly (9) is movably connected with the end block (55) in a hinged manner.
  4. 4. The exhaust gas treatment device for asphalt concrete production according to claim 1, wherein the driving assembly (7) comprises a rotating wheel (71), a driving screw (72) is fixedly arranged at the bottom end of the rotating wheel (71), a bottom plate (73) is movably arranged inside the bottom end of the driving screw (72) through a plug rod, upright rods (74) are fixedly arranged at four corners of the upper surface of the bottom plate (73), and scraping structures (75) are fixedly arranged at the top ends of the upright rods (74).
  5. 5. The exhaust gas treatment device for asphalt concrete production according to claim 4, wherein the number of the rotating wheels (71) is plural, the rotating wheels are connected through a belt transmission, the bottom plate (73) is arranged at the bottom end outside the frame body (51), the driving screw (72) penetrates through the bottom end of the frame body (51) and is in movable connection with the bottom plate (73) in a rotating mode, and the scraping structure (75) is arranged outside the outer frame assembly (5).
  6. 6. The exhaust gas treatment device for asphalt concrete production according to claim 4, wherein the scraping structure (75) comprises a main frame body (751), a sleeve-joint shell (752) is fixedly arranged at one end of the main frame body (751), an air duct (753) is fixedly arranged inside the main frame body (751), an elastic hose (754) is fixedly arranged at one end of the air duct (753), a pressure conducting plate (755) is fixedly arranged at one end of the elastic hose (754), an elastic air bag (756) is fixedly arranged at the other end of the air duct (753), an intermediate plate (757) is fixedly arranged at one end of the elastic air bag (756) in a fitting mode, and a scraping plate (758) is fixedly arranged at the middle part of one end of the intermediate plate (757).
  7. 7. The exhaust gas treatment device for asphalt concrete production according to claim 6, wherein two ends of the main frame body (751) are fixedly connected with the vertical rods (74), the main frame body (751) is arranged towards one side where the filter cloth bag (54) is located, the air duct (753) is fixedly installed in the main frame body (751) in an embedded mode, the air duct (753), the elastic hoses (754) and the elastic air bags (756) are filled with liquid in a sealing mode, the number of the elastic hoses (754) is multiple, the sum of the sectional areas is smaller than that of the elastic air bags (756), the pressure conducting plates (755) are arranged in the sleeve shell (752) in a sliding mode, one ends of the elastic hoses (754) are arranged in the sleeve shell (752), the maximum extension state of the pressure conducting plates (755) does not exceed the interior of the sleeve shell (752), the middle plates (757) are arranged towards one side where the main frame body (751) is located, and limit protruding blocks are arranged at two ends of the filter cloth bag (54).
  8. 8. The waste gas treatment device for asphalt concrete production according to claim 1, wherein the triggering component (8) comprises a base ring (81), a pressing contact rod (82) is fixedly arranged on the side face of the base ring (81), a positioning straight rod (83) is fixedly arranged at the bottom end of the pressing contact rod (82), the base ring (81) is in threaded connection with the driving screw (72), the pressing contact rod (82) is provided with knocking cleaning components (9) in each direction and is uniformly distributed, the end parts of the pressing contact rod (82) are partially overlapped with one side of the knocking cleaning components (9) in the vertical projection direction, and the bottom end of the positioning straight rod (83) is fixedly connected with the bottom plate (73) and penetrates through the bottom end of the outer frame component (5).
  9. 9. The exhaust gas treatment device for asphalt concrete production according to claim 1, wherein the knocking cleaning assembly (9) comprises a pressing contact plate (91), one end of the pressing contact plate (91) is movably provided with a cross rod (92), two ends of one side of the cross rod (92) are symmetrically provided with a butt joint groove (93), one side of the cross rod (92) is uniformly and movably provided with a knocking head (94), the pressing contact plate (91) is arranged on one side of the cross rod (92) in a structure of unidirectional upward rotation, the butt joint groove (93) is hinged and connected with an end block (55) in a hinged mode, a reset coil spring is arranged at a hinged position, the knocking head (94) is arranged in an angle-adjustable structure, and one end of the knocking head is attached to one side of a supporting substrate (53).
  10. 10. An exhaust gas treatment device for asphalt concrete production according to any one of claims 1-9, characterized by the following specific methods of use: S1, delivering exhaust gas into the outer shell (1) from an air inlet, and starting the exhaust gas treatment device; S2, filtering and separating waste gas by using a filter cloth bag (54) to separate dust from the waste gas, accumulating the dust on the surface of the filter cloth bag (54) under the pressure of subsequent air inlet, automatically collecting the redundant dust by using a discharge hopper (3) at the bottom end, and discharging clean waste gas from an air outlet after the clean waste gas passes through the filter cloth bag (54) and enters the frame main body (51); S3, when a specified threshold value for increasing the air flow resistance in the frame main body (51) is reached, the driving motor (2) is started to drive the rotating wheel (71) to rotate, the rotating wheel (71) drives the driving screw (72) to rotate so as to enable the base ring (81) to move downwards, the base ring (81) moves downwards to enable the pressing contact rod (82) to press down to impact the pressing contact plate (91), the knocking head (94) is tilted and automatically falls down to knock the supporting substrate (53), meanwhile, the positioning straight rod (83) also drives the bottom plate (73) to move downwards, the main frame body (751) moves downwards, under the action of increasing internal pressure, the scraping plate (758) automatically moves to a position separated from the filtering cloth bag (54) by a specified distance, and excessive dust accumulated on the surface of the scraping plate is scraped in the downward movement process, so that only a dust primary layer on the surface of the filtering cloth bag (54) is reserved; S4, redundant dust after scraping also falls to a discharge hopper (3) below to be collected in a concentrated mode, then the driving motor (2) is turned over, the pressing contact rods (82) move upwards, each pressing contact plate (91) rotates and falls down again in the upward moving process, knocking vibration ash removal is achieved again, and the base ring (81) returns to the top for use.

Description

Waste gas treatment device and method for asphalt concrete production Technical Field The invention relates to the technical field of waste gas separation treatment, in particular to a waste gas treatment device and method for asphalt concrete production. Background The asphalt mixing plant can produce complicated waste gas in asphalt mixture production process, mainly contains dust, asphalt smoke and a small amount of sulfide etc. so this waste gas need carry out purification treatment before discharging, can adopt different equipment to the different stages of pitch waste gas's of treatment among the prior art, and wherein mainly adopts the sack cleaner to the dust removal in the waste gas, but current sack cleaner still has some problems in the use, and specifically as follows: The existing bag dust remover mainly utilizes dust in a dust separation bag to filter dust, the use of the bag can further improve the separation precision by means of a primary layer formed by the subsequent dust adhesion, dust accumulation on the bag is thickened gradually along with the increase of the use time in the prior art, so that the flow resistance in equipment is increased sharply, dust impurities adhered to the surface of the bag need to be cleaned regularly, in the prior art, a pulse airflow mode is adopted to perform backflushing and purging, but the dust thickness adhered to the surface of the bag cannot be controlled accurately in the mode, the primary layer outside the bag can be damaged by the pulse airflow purging mode, the use effect of the bag is deteriorated, the time is required to accumulate the primary layer, the use efficiency of equipment is greatly reduced, a pulse punch is generally arranged at the top end of the bag in the mode, the pulse backflushing mode needs to release very large airflow pressure to flush the bag, the backflushing effect of the bag along with the position far from the pulse head is reduced stepwise, the whole bag is low, the high-efficiency of the bag cannot be guaranteed, and the high-efficiency of the bag dust remover can not be used for producing asphalt dust remover is continuously used for the production of the asphalt. Disclosure of Invention The invention provides a waste gas treatment device and a waste gas treatment method for asphalt concrete production, which have the advantages of stable and reliable use effect and strong applicability, and solve the problems in the prior art. The invention provides a technical scheme that the waste gas treatment device for asphalt concrete production comprises an outer shell, wherein the waste gas treatment device comprises an outer shell, a gas inlet and a gas outlet of flue gas are respectively arranged at the upper end and the lower end of two sides of the outer shell, a driving motor is fixedly arranged at the top end of the outer shell, a discharge hopper is fixedly arranged at the bottom end of the outer shell, a supporting transverse plate is fixedly arranged above the inside of the outer shell, an outer frame assembly is fixedly arranged at the bottom end of the supporting transverse plate, square grooves are uniformly formed in the supporting transverse plate, cross supports are fixedly arranged in the square grooves, a driving assembly is movably sleeved on the cross supports, a triggering assembly is movably sleeved on the driving assembly, and a knocking cleaning assembly is uniformly arranged in the outer frame assembly. In a preferred embodiment, the outer frame assembly comprises a frame body, ventilation grid grooves are uniformly formed in the frame body, a supporting substrate is arranged on the outer side face of the frame body, a filter cloth bag is fixedly arranged on the outer side face of the supporting substrate, and end blocks are fixedly arranged in the frame body. In a preferred embodiment, the top end of the frame body is fixedly mounted with the bottom end of the supporting transverse plate in a sealing manner, the outer surface of the frame body, which is provided with one end at the outer side of the covering range, of the ventilation grid groove is concave, the supporting substrate is embedded in the concave part and is detachably connected with the supporting substrate, and the knocking cleaning assembly is movably connected with the end block in a hinged manner. In a preferred embodiment, the driving assembly comprises a rotating wheel, a driving screw is fixedly arranged at the bottom end of the rotating wheel, a bottom plate is movably arranged in the bottom end of the driving screw through a plug rod, upright rods are fixedly arranged at four corners of the upper surface of the bottom plate respectively, and a scraping structure is fixedly arranged at the top end of the upright rods. In a preferred embodiment, the number of the rotating wheels is multiple, the rotating wheels are connected through a belt transmission, the bottom plate is arranged at the bottom end outside the frame body, the drivi