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CN-224207763-U - Multistage atomization semi-dry flue gas desulfurization reaction tower

CN224207763UCN 224207763 UCN224207763 UCN 224207763UCN-224207763-U

Abstract

The utility model discloses a multistage atomization semi-dry flue gas desulfurization reaction tower, belonging to the technical field of flue gas desulfurization, which is characterized by comprising a reaction tower, wherein the desulfurizing agent reaches a regulating valve along a conduit through a unidirectional agent conveying valve by arranging an atomization flow equalizing mechanism, the regulating valve can flexibly regulate the conveying amount of the desulfurizing agent according to different working conditions, and then the desulfurizing agent is accurately distributed into three circular pipes which are arranged in the reaction tower in a layering way, primary atomizer, meticulous atomizer and the superfine atomizer that three root canal bottoms correspond, carry out layering to the desulfurizing agent in proper order and refine the atomizing treatment, and primary atomizer preliminary disperses the desulfurizing agent, and meticulous atomizer further refines the granule, and superfine atomizer forms superfine little fog droplet, has greatly increased the contact area between desulfurizing agent and the flue gas that gets into from the flue gas pipe, lets the two fully contact, is showing and is promoting desulfurization efficiency, effectively reduces the sulfur dioxide content in the flue gas after the desulfurization.

Inventors

  • LIU XUQIANG
  • GAO GANG
  • ZHENG LONGFEI
  • WEI KANGKANG

Assignees

  • 界首市伟明环保能源有限公司

Dates

Publication Date
20260508
Application Date
20250623

Claims (8)

  1. 1. The multistage atomization semi-dry flue gas desulfurization reaction tower comprises a reaction tower (1) and is characterized in that a flue gas inlet pipe (2) is communicated with the left side of the reaction tower (1), an air inlet pipe (3) is communicated with the right side of the reaction tower (1), a discharge pipe (4) is communicated with the top of the reaction tower (1), and an atomization flow equalizing mechanism (5) is arranged on the top side inside the reaction tower (1); The utility model provides an atomizing flow equalizing mechanism (5) is including setting up in pipe (51) of the inside top of reaction tower (1), and the bottom intercommunication of bottom pipe (51) has elementary atomizer (52), and the bottom intercommunication of middle pipe (51) has meticulous atomizer (53), and the bottom intercommunication of top pipe (51) has superfine atomizer (54), the right side of reaction tower (1) is provided with regulation and control valve (55), the right side of reaction tower (1) is run through in the left side of regulation and control valve (55), the left side of regulation and control valve (55) communicates with the right side of pipe (51), the right side intercommunication of regulation and control valve (55) has pipe (56), the right side intercommunication of pipe (56) has unidirectional transmission agent valve (57), the bottom of elementary atomizer (52), meticulous atomizer (53) and superfine atomizer (54) is provided with water conservancy diversion structure (58).
  2. 2. The multistage atomization semi-dry flue gas desulfurization reaction tower according to claim 1, wherein the spiral flow guide structure (58) comprises a semicircular loop bar (581) fixedly connected to the middle inside the reaction tower (1), and support rods (582) are welded on two sides of the rear side inside the semicircular loop bar (581).
  3. 3. The multistage atomization semi-dry flue gas desulfurization reaction tower according to claim 2, wherein a supporting sleeve (583) is welded on the front side of the supporting rod (582), a vertical rod (584) is fixedly connected to the top of the supporting sleeve (583), and the vertical rod (584) is located on the inner side of the round tube (51).
  4. 4. The multistage atomized semi-dry flue gas desulfurization reaction tower according to claim 3, wherein spiral guide plates (585) are fixedly connected to the top, the middle and the bottom of the surface of the vertical rod (584), and the spiral guide plates (585) are respectively positioned at the bottoms of the primary atomization spray head (52), the fine atomization spray head (53) and the superfine atomization spray head (54).
  5. 5. The multistage atomization semi-dry flue gas desulfurization reaction tower according to claim 1, wherein a spraying structure (6) is arranged on the bottom side inside the reaction tower (1), the spraying structure (6) comprises a water guide ring (61) arranged on the bottom side inside the reaction tower (1), and a spray header (62) is communicated with the bottom of the water guide ring (61).
  6. 6. The multistage atomization semi-dry flue gas desulfurization reaction tower according to claim 5, wherein a double-head water pipe (63) is arranged at the bottom of the right side of the reaction tower (1), the left side of the double-head water pipe (63) penetrates through the right side of the reaction tower (1), the left side of the double-head water pipe (63) is communicated with the right side of a water guide ring (61), and a water valve (64) is communicated with the right side of the double-head water pipe (63).
  7. 7. The multistage atomization semi-dry flue gas desulfurization reaction tower according to claim 1, wherein an air flow distribution plate (7) is arranged at the bottom side of the inside of the reaction tower (1), the air flow distribution plate (7) is positioned at the left side of the air inlet pipe (3), and the air flow distribution plate (7) is positioned at the bottom of the right side of the flue gas inlet pipe (2).
  8. 8. The multistage atomization semi-dry flue gas desulfurization reaction tower according to claim 1, wherein a demister (8) is arranged on the top side of the interior of the reaction tower (1), and the demister (8) is positioned on the top of a superfine atomization nozzle (54).

Description

Multistage atomization semi-dry flue gas desulfurization reaction tower Technical Field The utility model relates to the technical field of flue gas desulfurization, in particular to a multistage atomization semi-dry flue gas desulfurization reaction tower. Background With the increasing strictness of environmental protection standards, flue gas desulfurization becomes a vital link in industrial waste gas treatment, and the semi-dry flue gas desulfurization technology is widely applied in the industrial field by virtue of the advantages of higher desulfurization efficiency, lower investment and operation cost, no wastewater discharge and the like, and the performance of the semi-dry flue gas desulfurization reaction tower is directly influenced by the core equipment of the technology. The catalyst in the existing dry desulfurization reaction tower falls into the reaction tower after reaction, and is not convenient to recycle or treat in the later period; compared with the traditional dry desulfurization reaction tower, the utility model has the advantages that sulfide in the flue gas is absorbed by the internal catalyst and falls into the tower body, so that the floating mixture can be effectively prevented from flowing backwards when exhaust is stopped, such as the inside of the pipe body, and the utility model has the function of more convenient collection and cleaning. Aiming at the problems, the prior patent provides a solution, but the prior flue gas desulfurization reaction tower has a plurality of problems in the actual operation process, firstly, atomization effect is poor, a plurality of reaction towers adopt a single-stage atomization mode, so that the desulfurizing agent cannot fully contact with flue gas, particle size of the atomized desulfurizing agent is larger, contact area with the flue gas is limited, reaction is insufficient, sulfur dioxide content in the desulfurized flue gas is still higher, the increasingly strict emission standard is difficult to meet, secondly, gas-liquid mixing uniformity in the reaction towers is poor, partial desulfurizing agent and the flue gas in partial areas cannot be effectively mixed due to uneven air flow distribution in the towers, partial reaction is incomplete, and integral desulfurization efficiency is reduced. Therefore, a semi-dry flue gas desulfurization reaction tower with multistage atomization is provided. Disclosure of utility model The utility model aims to provide a multistage atomization semi-dry flue gas desulfurization reaction tower, which can solve the problems of the existing flue gas desulfurization reaction tower in the actual operation process, firstly, the atomization effect is poor, a single-stage atomization mode is adopted in a plurality of reaction towers, so that a desulfurizing agent cannot fully contact with flue gas, the particle size of the atomized desulfurizing agent is larger, the contact area with the flue gas is limited, the reaction is insufficient, the sulfur dioxide content in the desulfurized flue gas is still higher, the increasingly strict emission standard is difficult to meet, secondly, the uniformity of gas-liquid mixing in the reaction towers is poor, and the desulfurizing agent and the flue gas in partial areas cannot be effectively mixed due to uneven air flow distribution in the towers, so that the partial reaction is not thorough, and the problem of overall desulfurization efficiency is reduced. The semi-dry flue gas desulfurization reaction tower comprises a reaction tower, wherein a flue gas inlet pipe is communicated with the left side of the reaction tower, an air inlet pipe is communicated with the right side of the reaction tower, a discharge pipe is communicated with the top of the reaction tower, and an atomization flow equalizing mechanism is arranged on the top side inside the reaction tower; The utility model provides a reaction tower, including the pipe that sets up in the inside top of reaction tower, the bottom intercommunication of bottom pipe has primary atomizer, and the bottom intercommunication of middle pipe has meticulous atomizer, and the bottom intercommunication of top pipe has superfine atomizer, the right side of reaction tower is provided with the regulation and control valve, the right side of reaction tower is run through in the left side of regulation and control valve, the left side of regulation and control valve and the right side intercommunication of pipe, the right side intercommunication of regulation and control valve has the pipe, the right side intercommunication of pipe has one-way delivery valve, primary atomizer, meticulous atomizer and superfine atomizer's bottom is provided with spiral water conservancy diversion structure. Preferably, the spiral diversion structure comprises a semicircular loop bar fixedly connected to the middle inside the reaction tower, and supporting rods are welded on two sides of the rear side inside the semicircular loop bar. Preferably,