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CN-121971937-A - Tail gas treatment device of pneumatic dryer

CN121971937ACN 121971937 ACN121971937 ACN 121971937ACN-121971937-A

Abstract

The invention discloses a tail gas treatment device of an air flow dryer, which relates to the technical field of tail gas treatment, and particularly relates to a tail gas treatment device of an air flow dryer, comprising a main body shell, wherein the main body shell is formed by sequentially and detachably connecting a lower shell, a middle shell I, a middle shell II, an upper shell I and an upper shell II from top to bottom, through the matching of tangential air inlet of an air inlet pipe and a guide assembly, the tail gas forms spiral flow, the retention time is prolonged, a double-layer annular water curtain of an annular spray assembly is matched, dust can be effectively intercepted, meanwhile, the tail gas heat is quickly transferred into water by virtue of the characteristics of large specific heat capacity and high heat conduction efficiency of water, compared with the traditional air conduction type recovery, the heat in water is more stable in storage and higher in conduction efficiency, the subsequent heat exchange is conveniently led out for cyclic utilization, meanwhile, a water circulation mechanism realizes closed-loop supply of water resources, a condensing plate further reduces water loss for condensation recovery of water vapor, realizes synchronous promotion of dust removal, heat recovery and water resource circulation, and achieves the dual purposes of environmental protection and energy conservation.

Inventors

  • WU SHUJIANG
  • CHEN BIN

Assignees

  • 东贵精密机械(无锡)有限公司

Dates

Publication Date
20260505
Application Date
20260407

Claims (10)

  1. 1. A tail gas treatment device of an air flow dryer is characterized by comprising a main body shell (1), wherein the main body shell (1) is formed by sequentially and detachably connecting a lower shell (11), a middle shell I (12), a middle shell II (13), an upper shell I (14) and an upper shell II (15) from top to bottom, a water circulation mechanism (7) is arranged in the lower shell (11) and the middle shell I (12), an air inlet pipe (2) is fixedly arranged in the middle shell II (13), the air inlet pipe (2) is arranged in the middle shell II (13) along the inclined tangential direction of the inner wall of the middle shell II (13), a guide component (8) is arranged in the middle shell II (13) and used for driving tail gas to spirally rotate in the middle shell II (13), an annular spraying component (9) is arranged in the upper shell I (14), the annular spraying component (9) is matched with the water circulation mechanism (7) in a communicating mode and is attached to the inner side of the guide component (8), a condensation plate (5) is fixedly connected in the upper shell II (15) through a plurality of fixing columns (6), and the main body (1) and the guide component (3) are respectively driven by the guide component (3) and the guide component (3) to the water circulation mechanism (7).
  2. 2. The tail gas treatment device of the pneumatic dryer of claim 1, wherein the guide assembly (8) comprises an upper rotating seat (81) and a lower rotating seat (82) which are symmetrically connected to the upper end and the lower end of the middle shell (13) in a rotating mode, the upper rotating seat (81) and the lower rotating seat (82) are both positioned in the main body shell (1), a plurality of blades (83) are fixedly connected between the upper rotating seat and the lower rotating seat, and the blades (83) are both connected in the middle shell (13) in a rotating mode.
  3. 3. The tail gas treatment device of the pneumatic dryer is characterized in that the annular spraying assembly (9) comprises a spraying seat (91) fixedly connected to the inside of a first upper shell (14), a stepped inner cylinder (90) is fixedly connected to the inside of the spraying seat (91), a water outlet groove (901) is formed in the outer side of the inner cylinder (90), a first guide plate (95) and a second guide plate (96) are fixedly connected to the inside of the inner cylinder (90), conical holes with the size being larger in the upper part and smaller in the lower part are formed in the first guide plate (95) and the second guide plate (96), an inner water curtain mechanism (94) is arranged at the bottom of the first guide plate (95), an outer water curtain mechanism (93) is arranged at the bottom of the second guide plate (96), the outer water curtain mechanism (93) and the inner water curtain mechanism (94) are identical in structure and size deviation, the outer water curtain mechanism (93) and blades (83) are coaxially arranged, and a plurality of water conveying pipes (92) are fixedly communicated to the bottom of the spraying seat (91).
  4. 4. The tail gas treatment device of the pneumatic dryer is characterized in that the outer water curtain mechanism (93) and the inner water curtain mechanism (94) comprise guide nets (97), the upper end and the lower end of each guide net (97) are connected with water absorption guide pads (910) in a sliding mode, the outer sides of the water absorption guide pads (910) are provided with outer fixing rings (99), the inner sides of the water absorption guide pads are provided with inner fixing rings (98), the inner fixing rings (98) are fixedly connected with the outer fixing rings (99) through bolts, and the bolts penetrate through the water absorption guide pads (910) and the guide nets (97).
  5. 5. The tail gas treatment device of the pneumatic dryer is characterized in that the water circulation mechanism (7) comprises a water storage cylinder (71) fixedly connected in a lower shell (11), a communication groove (701) is formed in the outer side of the bottom of the water storage cylinder (71), an annular sealing seat (72) is fixedly connected to the bottom of the communication groove (701), the annular sealing seat (72) and the top of the water storage cylinder (71) are both connected in the middle shell (12) in a sliding mode and form a closed space with the inner wall of the middle shell (12), an annular piston (73) is connected to the outer side of the water storage cylinder (71) in a sliding mode, a plurality of water inlet one-way valves (77) communicated with the communication groove (701) are fixedly arranged in the inner wall of the water storage cylinder (71), a plurality of water outlet one-way valves (78) communicated with a water conveying pipe (92) are fixedly arranged at the top of the water storage cylinder (71), and a driving mechanism is arranged at the bottom of the annular piston (73).
  6. 6. The tail gas treatment device of the pneumatic dryer is characterized in that the driving mechanism comprises a bidirectional screw rod (74) symmetrically and fixedly connected to the bottom of the annular piston (73), mounting grooves (702) are symmetrically formed in the outer side of the annular sealing seat (72), a mounting sleeve (75) and a gear III (76) are rotatably connected to the mounting groove (702), the gear III (76) is fixedly connected to the outer side of the mounting sleeve (75) and forms spiral auxiliary transmission with the bidirectional screw rod (74), an annular groove (703) is formed in the bottom of the middle shell I (12), a gear ring (79) is rotatably connected to the annular groove (703), and the gear III (76) is meshed with the gear ring (79).
  7. 7. The tail gas treatment device of the pneumatic dryer is characterized in that the driving assembly (3) comprises a mounting seat (31) fixedly connected to the outer side of the main body shell (1), a driving shaft (32) is rotatably connected to the mounting seat (31), a first gear (33) and a second gear (34) are fixedly connected to the upper end and the lower end of the driving shaft (32) respectively, a motor (4) is fixedly installed at the top of the mounting seat (31), the output end of the motor (4) is fixedly connected with the driving shaft (32), and the second gear (34) is meshed with a gear ring (79).
  8. 8. The tail gas treatment device of the pneumatic dryer of claim 2, wherein a gear five (85) is rotatably connected to the top of the middle shell II (13), a gear four (84) is fixedly connected to the bottom of the upper rotating seat (81), and the gear five (85) is located between the gear one (33) and the gear four (84) and meshed with the gear two respectively.
  9. 9. The tail gas treatment device of the pneumatic dryer is characterized in that the shells of the main body shell (1) are fixedly connected through bolts, and sealing gaskets are arranged at the connection positions.
  10. 10. The tail gas treatment device of the pneumatic dryer, as set forth in claim 3, wherein the bottom inner wall of the water outlet tank (901) is flush with the topmost end of the second guide plate (96).

Description

Tail gas treatment device of pneumatic dryer Technical Field The invention relates to the technical field of tail gas treatment, in particular to a tail gas treatment device of an airflow dryer. Background The pneumatic dryer can generate a large amount of tail gas in the working process, the tail gas not only contains dust and other impurities, but also carries a large amount of heat and water vapor, if the tail gas is directly discharged, on one hand, dust pollution in the air can be caused, the surrounding environment and the human health can be influenced, and on the other hand, the heat in the tail gas can not be effectively utilized, so that energy waste is caused. The existing industry mainly adopts a combined mode of cyclone separator pretreatment and cloth bag dust collector deep filtration for treatment, the cyclone separator in the mode can only remove large-particle-size dust, fine dust escapes to the cloth bag dust collector, so that a filter bag runs for a long time under high load, is easy to block and abrade, further increases maintenance cost and influences production continuity, and in addition, the cloth bag dust collector adopts dry filtration, so that tail gas heat cannot be recovered, energy waste is caused, and dust is condensed in a cloth bag due to water vapor in tail gas, so that the treatment effect of the cloth bag on the tail gas is influenced. Disclosure of Invention The invention aims to provide an exhaust gas treatment device of an air dryer, which is used for solving the problems in the background technology. The tail gas treatment device of the air flow dryer comprises a main body shell, wherein the main body shell is formed by sequentially and detachably connecting a lower shell, a middle shell I, a middle shell II, an upper shell I and an upper shell II from top to bottom, a water circulation mechanism is arranged in the lower shell and the middle shell I, an air inlet pipe is fixedly arranged in the middle shell II and is arranged along the inclined tangential direction of the inner wall of the middle shell II, a guide assembly is arranged in the middle shell II and is used for driving tail gas to realize spiral rotation in the middle shell II, an annular spraying assembly is arranged in the upper shell I and is communicated and matched with the water circulation mechanism and is attached to the inner side of the guide assembly, a condensation plate is fixedly connected in the upper shell II through a plurality of fixing columns, a driving assembly is arranged on the outer side of the main body shell, and the driving assembly is respectively connected with the water circulation mechanism and the guide assembly. Preferably, the guide assembly comprises an upper rotating seat and a lower rotating seat which are symmetrically connected to the upper end and the lower end of the middle shell in a rotating mode, the upper rotating seat and the lower rotating seat are both located inside the main shell, a plurality of blades are fixedly connected between the upper rotating seat and the lower rotating seat, and the blades are all connected inside the middle shell in a rotating mode. Preferably, the annular spraying assembly comprises a spraying seat fixedly connected to the inside of the upper shell, a stepped inner cylinder is fixedly connected to the inside of the spraying seat, a water outlet groove is formed in the outer side of the inner cylinder, a first guide plate and a second guide plate are fixedly connected to the inside of the inner cylinder, conical holes with the upper size and the lower size are formed in the first guide plate and the second guide plate respectively, an inner water curtain mechanism is arranged at the bottom of the first guide plate, an outer water curtain mechanism is arranged at the bottom of the second guide plate, the outer water curtain mechanism and the inner water curtain mechanism are identical in structure and size deviation and are coaxially arranged, the outer water curtain mechanism is attached to the blades, and a plurality of water conveying pipes are fixedly communicated with the bottom of the spraying seat. Preferably, the outer water curtain mechanism and the inner water curtain mechanism comprise guide nets, the upper end and the lower end of each guide net are both connected with water absorption guide pads in a sliding mode, the outer sides of the water absorption guide pads are provided with outer fixing rings, the inner sides of the water absorption guide pads are provided with inner fixing rings, the inner fixing rings are fixedly connected with the outer fixing rings through bolts, and the bolts penetrate through the water absorption guide pads and the guide nets. The water circulation mechanism comprises a water storage barrel fixedly connected in a lower shell, a communication groove is formed in the outer side of the bottom of the water storage barrel, an annular sealing seat is fixedly connected to the bottom of the com