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CN-122006442-A - High temperature desulfurization dust collector

CN122006442ACN 122006442 ACN122006442 ACN 122006442ACN-122006442-A

Abstract

The invention discloses a high-temperature desulfurization dust removal device, which relates to the technical field of industrial flue gas purification, and comprises a tank body, wherein the tank body is used as a reaction space main body, the lower part of the side wall of the tank body is provided with an air inlet, an induction type cover plate is arranged at the air inlet and used for detecting the flow rate and the flow velocity of gas entering a tower in real time and outputting an electric signal to feed back to a control system, a self-adaptive spray adjusting mechanism is arranged in the upper region of the tank body and comprises a spiral spray pipe, spray holes and an electric control telescopic rod, the spray holes are symmetrically distributed on one side of the spiral spray pipe and face the central region of the tower body for directional spraying, the electric control telescopic rod is connected between a connecting frame and the spiral spray pipe and used for receiving signal input from the induction type cover plate, and when the increase of air inflow is detected, the space posture of the spiral spray pipe is driven to incline towards a central axis, and the liquid supply proportion of a chamber on the central side is increased, so that spray focuses are concentrated on a high-density airflow core region.

Inventors

  • AI JUN
  • JIN WEI
  • HAN ZHENCHAO
  • YANG HONGGUO
  • YAN BINBIN

Assignees

  • 安徽元浩环保科技有限公司

Dates

Publication Date
20260512
Application Date
20260206

Claims (8)

  1. 1. The high temperature desulfurizing and dedusting device is characterized by comprising; The device comprises a tank body (1), wherein the tank body (1) is used as a reaction space main body, an air inlet is formed in the lower part of the side wall of the tank body, an induction type cover plate (11) is arranged at the air inlet and used for detecting the flow of gas entering a tower in real time and outputting an electric signal to be fed back to a control system; The self-adaptive adjusting spray mechanism (2) is arranged in the upper region of the tank body (1) and comprises a spiral spray pipe (22) and an electric control telescopic rod (26), spray holes (24) which face the central region of the tower body for directional spraying are uniformly distributed on one side of the spiral spray pipe (22), the working end of the electric control telescopic rod (26) is connected with the tail end of the spiral spray pipe (22) in a linkage manner and is used for driving the spiral spray pipe (22) to carry out telescopic form adjustment, when the increase of the air inflow is detected, the spiral spray pipe (22) is driven to extend, and meanwhile, the liquid supply proportion is increased, so that the spraying focus is concentrated in the high-density air flow core region; The self-cleaning spray head mechanism (3), the self-cleaning spray head mechanism (3) is equidistantly distributed on the spiral spray pipe (22), the self-cleaning spray head mechanism (3) comprises a first spray opening (33), an adjusting plate (34), a second spray opening (35) and a connecting column (36), the first spray opening (33) is located at the bottom of the self-cleaning spray head mechanism (3), the adjusting plate (34) and the connecting column (36) are located inside the self-cleaning spray head mechanism (3), the second spray opening (35) is formed on the adjusting plate (34), the first spray opening (33) and the second spray opening (35) are matched to form a spray total opening, and the opening and closing states of the first spray opening (33) and the second spray opening (35) are dynamically adjusted through linkage rotation of the adjusting plate (34) along with the connecting column (36).
  2. 2. The high-temperature desulfurization dust removal device according to claim 1, wherein a separation plate (12) is arranged in the tank body (1) and used for guiding the flow direction of the gas-liquid mixture and realizing preliminary mist collection.
  3. 3. The high-temperature desulfurization dust removal device according to claim 1 is characterized in that the spiral spray pipe (22) is fixed in the tank body (1) through a mounting frame, one end of the spiral spray pipe is communicated with the liquid inlet pipe (21), the separation baffle plate (23) is arranged in the spiral spray pipe (22) and extends along the axial direction to divide the space in the pipe into two independent chambers, and the two independent chambers are respectively connected with liquid supply branches with different pressure levels or medicament types.
  4. 4. The high-temperature desulfurization dust removal device of claim 3, wherein the spiral spray pipes (22) are made of plastic deformable materials, so that the spiral spray pipes can be deformed, the cross sections of the spiral spray pipes (22) are in arc section transition, the spray holes (24) are formed in the inner sides of the spiral spray pipes (22), the inner sides of the spiral spray pipes (22) are made of elastic materials, and each layer of spiral spray pipes (22) are mutually overlapped and extruded to achieve the blocking effect of the spray holes (24).
  5. 5. The high-temperature desulfurization dust collector of claim 1, wherein the self-cleaning spray head mechanism (3) comprises a mounting seat (31) and a connecting seat (32), the mounting seat (31) is connected with the connecting seat (32), two vertical guide blocks are arranged on the inner side of the mounting seat (31) to play a limiting guide role, a plurality of first spray holes (33) are formed in the bottom of the connecting seat (32), a connecting column (36) is arranged in the mounting seat (31), an adjusting plate (34) is arranged at the bottom of the connecting column (36), a second spray hole (35) is formed in the adjusting plate (34), the second spray hole (35) is matched with the adjusting plate (34) to form a finished spray hole, the adjusting plate (34) is connected with the mounting seat (31) in a rotating mode, a guide groove (361) is formed in the connecting column (36), a movable plate (37) limited by the guide blocks is sleeved outside the connecting column (36), a guide ball (371) is arranged in the movable plate (37), and the guide ball (371) is matched with the guide groove (37) to form an upper cavity and a lower cavity (32) by the two parts of the upper cavity and the lower cavity (31).
  6. 6. The high-temperature desulfurization and dust-removing device according to claim 5, wherein the inclination angle of the guide groove (361) is larger than 70 degrees.
  7. 7. The high-temperature desulfurization dust collector as set forth in claim 5, wherein a connecting spring is arranged between the movable plate (37) and the upper inner top of the mounting seat (31), the branch pipe (311) is located above the movable plate (37), an adjusting cavity (312) is arranged at the position where the branch pipe (311) is communicated with the mounting seat (31), a movable seat (38) and a spring plate (39) are arranged in the adjusting cavity (312), and the movable plate (37) can be pressed to move through the movable seat (38).
  8. 8. The high-temperature desulfurization and dust removal device according to claim 5, wherein the connecting seat (32) cavity is connected with the spiral spray pipe (22) through a first connecting pipe (310), a branch pipe (311) is arranged on the first connecting pipe (310), and control valves are arranged on the first connecting pipe (310) and the branch pipe (311).

Description

High temperature desulfurization dust collector Technical Field The invention relates to the technical field of industrial flue gas purification, in particular to a high-temperature desulfurization dust removal device. Background The industrial flue gas purification system generally uses a high-temperature desulfurization dust removal device, wherein most of the high-temperature desulfurization dust removal device adopts a wet desulfurization dust removal tower and is mainly used for removing sulfur dioxide and suspended particles in flue gas. The basic working principle is that a multi-layer spraying device is arranged in a tower body, alkaline absorption liquid (such as limestone slurry or NaOH solution) is atomized into fine liquid drops, and the fine liquid drops are in countercurrent contact with flue gas flowing from bottom to top, so that chemical absorption of sulfur dioxide and physical trapping of dust are realized, and the synergistic treatment effect of desulfurization and dust removal is achieved. However, in the actual operation process, the existing wet desulfurization dust-removing tower still has significant defects in the aspects of gas-liquid mass transfer efficiency, operation stability and working condition adaptability, and is particularly characterized in the aspects of space distribution characteristics, reliability of key components, dynamic response capability and the like of a spraying system, so that the overall performance of the system is severely restricted. Firstly, in the using process of the existing spraying system, the dust removal tower is in different using stages, and the gas quantity to be treated is different at the moment, so that the spraying quantity needs to be adaptively changed at the moment, and the existing spraying device cannot automatically adjust the spraying quantity according to the air inflow; Secondly, the nozzle is used as a key component for realizing high-efficiency atomization, and is in a slurry environment with high solid content and strong corrosiveness for a long time, so that abrasion and scaling blockage are extremely easy to occur. The CaCO 3 or precipitated CaSO 4 crystals which are not completely dissolved in the slurry can be deposited on the inner wall of the nozzle, so that the aperture of the outlet is reduced and even completely blocked, and the existing nozzle cannot be automatically cleaned. Disclosure of Invention Aiming at the technical problem that the prior art is too single, the technical scheme of the invention is obviously different from the prior art, and the embodiment of the invention provides the high-temperature desulfurization dust removal device so as to solve the technical problem that the prior high-temperature desulfurization dust removal device has unreasonable places due to the structural characteristics thereof in the use process. The embodiment of the invention adopts the following technical scheme that the high-temperature desulfurization dust removal device comprises a tank body, a reaction space main body and a control system, wherein the lower part of the side wall of the tank body is provided with an air inlet, and an induction type cover plate is arranged at the air inlet and used for detecting the flow of gas entering a tower in real time and outputting an electric signal to be fed back to the control system; The self-adaptive adjusting spray mechanism is arranged in the upper region of the tank body and comprises a spiral spray pipe and an electric control telescopic rod, wherein spray holes for directional spraying towards the central region of the tower body are uniformly distributed on one side of the spiral spray pipe; The self-cleaning spray head mechanism is equidistantly distributed on the spiral spray pipe and comprises a first spray port, an adjusting plate, a second spray port and a connecting column, wherein the first spray port is positioned at the bottom of the self-cleaning spray head mechanism, the adjusting plate and the connecting column are positioned inside the self-cleaning spray head mechanism, the second spray port is arranged on the adjusting plate, the first spray port and the second spray port are matched for use to form a spray total port, and the opening and closing states of the first spray port and the second spray port are dynamically adjusted by the linkage rotation of the adjusting plate along with the connecting column. Further, a separation plate is arranged in the tank body and used for guiding the flowing direction of the gas-liquid mixture and achieving preliminary mist drip collection. The separation baffle plate is arranged inside the spiral spray pipe and extends along the axial direction to divide the space in the pipe into two independent chambers which are respectively connected with liquid supply branches with different pressure grades or medicament types. Further, the spiral spray pipe adopts plastic deformable material, so that the spiral spray pipe can have