CN114432867B

CN114432867B - Semi-dry deacidification tower

Info

Publication number: CN114432867B
Application number: CN202210107347.0A
Authority: CN
Inventors: 段国生; 章维明; 周俞; 毛忠信
Original assignee: Longyou Jinyi Thermal Power Co ltd
Current assignee: Longyou Jinyi Thermal Power Co ltd
Priority date: 2022-01-28
Filing date: 2022-01-28
Publication date: 2023-03-10
Anticipated expiration: 2042-01-28
Also published as: CN114432867A

Abstract

The invention discloses a semi-dry deacidification tower which comprises a deacidification tower body, wherein two bag-type dust remover bodies are arranged on one side of the deacidification tower body, the two bag-type dust remover bodies are connected with the deacidification tower body through a connecting pipeline, the connecting pipeline comprises a conveying area, a screening area and a communicating area, the communicating area is respectively connected with the two bag-type dust remover bodies, a detection assembly is arranged in the conveying area, a water absorption roller is arranged in one communicating area, a driving assembly is arranged on the bag-type dust remover body, the semi-dry deacidification tower is provided with the detection assembly, the impact force of the gas water content in a normal state on a detection panel is smaller than the elastic force of a return spring, when the gas water content is far larger than a rated value, the detection panel is compressed by the impact force of the gas, a driving column touches an electrical button, the electrical button sends a signal to a three-way valve, an electromagnetic valve and the driving assembly, and the driving assembly enables the water absorption roller to absorb the water in the gas.

Description

Semi-dry deacidification tower

Technical Field

The invention relates to the technical field of deacidification towers, in particular to a semi-dry deacidification tower.

Background

The semidry deacidification technology is one of the most mature and widely applied deacidification technologies at present. The absorbent is dispersed into fog drops with the average drop diameter of 30-40 mu m by a high-speed rotating atomizer and sprayed into the reaction tower, so that the contact area of the absorbent and the flue gas is increased, and the deacidification efficiency is improved.

Wherein the working time of the deacidification tower is as follows: and the flue gas of the boiler enters the absorption tower from the bottom of the absorption tower after coming out of the air preheater. Slaked lime enters an absorption tower through a rotary feeder, water is sprayed into the absorption tower through a high-pressure atomization backflow type spray gun arranged in the absorption tower, flue gas enters a circulating fluidized bed through the acceleration of a venturi tube at the bottom of the absorption tower and is desulfurized and purified in the absorption tower, the desulfurized flue gas is subjected to gas-solid separation through a bag-type dust remover, solid particles collected by the dust remover return to the desulfurization tower through a desulfurization ash recirculation system below the dust remover and continue to take part in reaction, the circulation is carried out, redundant small amount of desulfurization ash slag is pneumatically conveyed into a desulfurization ash bin, and the purified flue gas enters a chimney through a flue and is discharged into the atmosphere; however, has been used in practiceIn the course of the procedure, it is often dependent on SO ₂ The concentration of the water spray amount is adjusted, but the humidity is larger than the rated value in the adjusting process, and the temperature of outlet smoke is rapidly reduced when the humidity is greatly increased, so that the material is wet, the wall is hung, the cloth bag is pasted, and the cloth bag is damaged irreparably when the temperature is lower than the acid dew point temperature of the smoke. Therefore, a semidry deacidification tower is provided.

Disclosure of Invention

The invention aims to provide a semi-dry deacidification tower to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a semidry process deacidification tower, includes the deacidification tower body, deacidification tower body one side is provided with two sack cleaner bodies, two be connected with it through the connecting tube between sack cleaner body and the deacidification tower body, the connecting tube is including conveying the region, screening region and intercommunication region, the intercommunication region is connected respectively two on the sack cleaner body, and conveying regional inside and being provided with and being used for carrying out the determine module that detects to gas humidity, one of them communicating the regional inside roller that absorbs water that is used for carrying out the absorption to gas moisture that is provided with, just be provided with on the sack cleaner body and be used for the drive roller that absorbs water to carry out even absorptive drive assembly to gas moisture.

Preferably, the detection subassembly is including setting up in the inside detection panel of transport region, just be provided with on the transport region and place the frame, and place the inside drive post that is provided with of frame, the drive post runs through and places the frame inner wall and extend to on the detection panel, just be provided with the plectane body on the drive post, wherein the plectane body with place and be provided with reset spring between the frame inner wall, and place the inside electrical button that is provided with of frame, just the electrical button sets up in drive post below.

Preferably, the driving assembly comprises a supporting frame arranged on the bag-type dust collector body, a motor body is arranged on the supporting frame, and a rotating shaft used for being connected with the water absorption roller is arranged at the output end of the motor body.

Preferably, a scraper for removing moisture and impurities on the water absorbing roller is arranged in one of the communicating areas, a slide rail is arranged in the communicating area, a slide block used for being in sliding connection with the slide rail is arranged on the scraper, an elastic telescopic column used for being connected with the slide block is arranged in the slide rail, a impurity removing piece used for cleaning the moisture and the impurities on the scraper is arranged in the communicating area, and a storage piece used for collecting the moisture and the impurities is arranged in the communicating area.

Preferably, the impurity removing part comprises a driving frame arranged in one of the communicating areas, an impurity removing plate for cleaning impurities and moisture on the surface of the scraper is arranged on the driving frame, the impurity removing plate is in sliding connection with the driving frame, a guide seat is arranged on the driving frame, a guide column in sliding connection with the guide seat is arranged on the inner wall of one of the communicating areas, and a power part for enabling the driving frame to perform directional movement in the communicating area is arranged on one of the communicating areas; the driving frame is provided with a slot, the impurity removing plate is provided with a limiting column which is used for being in sliding connection with the slot, and the limiting column is provided with a spherical limiting part.

Preferably, a limiting groove used for being in sliding connection with the spherical limiting part is arranged on the inner wall of one side of one of the communicating areas, and the limiting groove comprises a straight-going area, a descending area and a returning area.

Preferably, the driving frame is provided with a magnetic member a, and the scraper is provided with a magnetic member B for performing an attractive interaction with the magnetic member a.

Preferably, the power part comprises a cam body arranged on one of the connection areas, the rotating shaft penetrates through the inner wall of one of the connection areas and extends to the cam body, a roller body for being attached to the cam body is arranged on the communication area, a support seat is arranged on the roller body, a baffle is arranged on one of the communication areas, a spring body is arranged between the support seat and the baffle, and a power column is arranged on the support seat; one end of the power column is provided with a connecting plate, a transmission column is arranged on the connecting plate, and the transmission column penetrates through the communication area and extends to the driving frame.

Preferably, the storage part is including setting up in the inside drainage frame of one of them intercommunication region, be provided with the conveyer pipe on the drainage frame, just conveyer pipe one end is provided with collects the frame, wherein be provided with the solenoid valve on the conveyer pipe, the crossing department is provided with the three-way valve between transport region, screening region and the intercommunication region.

Preferably, the power part comprises an electric push rod arranged on the communication area, the bottom of the electric push rod is connected with the outer wall of the bag-type dust collector body, and the output end of the electric push rod penetrates through the communication area and extends to the driving frame.

Compared with the prior art, the invention has the beneficial effects that:

1. the detection panel is at a rated value under the action of the return spring, the impact force of the gas water content on the detection panel in a normal state is smaller than the elastic force of the return spring, when the gas water content is far greater than the rated value, the detection panel is compressed by the impact force of the gas, the detection panel drives the driving column to touch the electric button, and the electric button sends a signal to the three-way valve, the electromagnetic valve and the driving assembly, so that the driving assembly properly absorbs the water in the gas through the water absorption roller, and the situations of material wetting, wall hanging, bag pasting and the like are avoided.

2. The invention is provided with the scraper, so that in the process of absorbing the moisture in the gas by the water absorbing roller through the scraper, the scraper cleans the moisture and impurities in the water absorbing roller, and the impurities mixed with the moisture on the scraper are scraped to the storage part to be collected under the action of the dust removing part and the power part.

3. According to the invention, the magnetic part A is arranged on the driving frame, and the magnetic part B on the scraper is attracted through the magnetic part A, so that when the driving frame drives the impurity removing plate to move to a position close to the scraper, the magnetic part A on the driving frame attracts the magnetic part B on the scraper, so that the scraper moves and does not contact the water absorption roller any more, and the water-containing impurities on the scraper are cleaned under the action of the impurity removing plate.

4. The impurity removing plate is initially positioned above the scraper, when the driving frame performs directional motion under the action of the power part, the impurity removing plate performs directional motion along a straight-going area, a descending area and a returning area of the limiting groove under the action of the spherical limiting part, when the impurity removing plate moves to the position where the water absorbing roller is scraped by the scraper, the impurity removing plate is positioned in the descending area, and the power part enables the driving frame to drive the impurity removing plate to perform returning motion so as to clean water-containing impurities on the scraper.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the present invention;

FIG. 3 is a schematic view of a driving assembly according to the present invention;

FIG. 4 is a partial sectional view of the present invention;

FIG. 5 is a schematic structural diagram of an embodiment of the present invention;

FIG. 6 is a schematic view of a spacing groove structure according to the present invention;

FIG. 7 is a partial schematic view of the present invention;

FIG. 8 is a schematic view of the sundries removing structure of the present invention;

FIG. 9 is a schematic structural diagram according to a second embodiment of the present invention;

FIG. 10 is a schematic view of a detecting assembly according to the present invention;

fig. 11 is a schematic structural diagram between the slide block and the slide rail on the scraper of the present invention.

In the figure: 1-deacidifying tower body; 2-bag dust collector body; 3-connecting a pipeline; 4-a detection component; 5-a water absorbing roller; 6-a drive assembly; 7-removing sundries; 8-a storage member; 9-a power member; 10-a limiting groove; 11-a humidity sensor; 31-a transport zone; 32-a screening area; 33-a communicating region; 34-a three-way valve; 41-detection panel; 42-a placement frame; 43-a drive column; 44-a circular plate body;

45-a return spring; 46-an electrical button; 61-a support frame; 62-the motor body; 63-a rotating shaft; 71-a drive frame; 72-impurity removing plate; 73-a guide seat; 74-guide post; 75-slotting; 76-a limit post; 77-spherical limit piece; 81-a drainage frame; 82-a delivery pipe; 83-a collection frame; 84-a solenoid valve; 90-an electric push rod; 91-a cam body; 92-a roller body; 93-a support seat; 94-a baffle; 95-a spring body; 96-power column; 97-connecting plate; 98-a drive column; 101-straight area; 102-a descending region; 103-a return area; 331-a scraper; 332-a slide rail; 333-sliding block; 334-elastic telescopic columns; 335-magnetic element B; 711-magnetic part a.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-11, the present invention provides a technical solution: a semi-dry deacidification tower, which solves the problem that the existing process is frequently carried out according to SO in the actual use process ₂ The concentration of the water is used for adjusting the water spraying amount, but the humidity is always greater than the rated value in the adjusting process, and if the humidity is greatly increased, the temperature of outlet smoke is rapidly reduced, so that the material is wet, the wall is hung, the cloth bag is pasted, and the cloth bag is irreparably damaged when the temperature is lower than the acid dew point temperature of the smoke; the deacidification tower comprises a deacidification tower body 1, wherein two bag-type dust collector bodies 2 are arranged on one side of the deacidification tower body 1 (one bag-type dust collector body 2 is used for processing gas with normal water content, the other bag-type dust collector body 2 is used for processing gas with more water content, and the two bag-type dust collector bodies 2 are arranged, wherein one bag-type dust collector body is used as a common bag, the other bag-type dust collector body is used as an alternative bag, the common bag-type dust collector body 2 can be broken down after being used for a long time, and the other bag-type dust collector body 2 can be used for working when the common bag-type dust collector body is broken down, so that the working efficiency is not influenced, and the two bag-type dust collector bodies 2 and the deacidification tower body 2 are arrangedThe tower body 1 is connected with the tower body through the connecting pipeline 3, wherein the connecting pipeline 3 comprises a conveying area 31, a screening area 32 and a communicating area 33, the communicating area 33 is respectively connected to the two bag-type dust collector bodies 2, the shape of the communicating area is set to be similar to a U shape, a detection assembly 4 for detecting the gas humidity is arranged in the conveying area 31, a water absorption roller 5 for absorbing the gas moisture is arranged in one communicating area 33, and a driving assembly 6 for driving the water absorption roller 5 to uniformly absorb the gas moisture is arranged on the bag-type dust collector body 2, wherein a humidity sensor 11 is arranged in the conveying area 31 in the scheme, and the humidity sensor 11 can sense the water vapor content in the atmosphere and is converted into a sensor capable of outputting signals. A humidity sensor 11 for causing a change in resistance or capacitance by using the hygroscopicity of porous ceramics and polymer films; the humidity sensor 11 is used for inducing the change of the resonance frequency of the vibrator according to the weight change of the moisture absorption substance on the vibrator, wherein the humidity sensor 11 can be matched with the detection assembly 4, when one detection mechanism is damaged, the other detection mechanism can detect the gas in the conveying pipe 82, and the humidity sensor 11, the detection assembly 4 and the driving assembly 6 are electrically connected; the detection assembly 4 in the present scheme includes a detection panel 41 disposed inside the conveying area 31, a placing frame 42 is fixedly mounted at a corner of the conveying area 31, a driving column 43 is disposed inside the placing frame 42, the driving column 43 penetrates through an inner wall of the placing frame 42 and extends onto the detection panel 41, and a circular plate body 44 is mounted on the driving column 43, wherein a return spring 45 is connected between the circular plate body 44 and the inner wall of the placing frame 42, an electrical button 46 is fixedly mounted on the inner wall of the placing frame 42, and the electrical button 46 is disposed below the driving column 43, it should be noted that the detection panel 41 is at a rated value under the action of the return spring 45, an impact force of a gas water content under a normal state on the detection panel 41 is smaller than an elastic force of the return spring 45, when the gas water content is much larger than the rated value, the detection panel 41 touches the electrical button 46, and meanwhile, the detection panel 41 can be designed according to an actual mounting position, so that water vapor is condensed into water drops and slides off the detection panel 41, thereby avoiding a long-standing situation; drive assembly 6 package in this schemeThe bag-type dust collector comprises a support frame 61 fixedly arranged on a bag-type dust collector body 2, a motor body 62 is arranged on the support frame 61, a rotating shaft 63 used for being connected with a water absorption roller 5 is arranged at the output end of the motor body 62, a scraper 331 used for removing water and impurities on the water absorption roller 5 is arranged in one of communication areas 33, the scraper 331 and the water absorption roller 5 are in a contact state in an initial state, a sliding rail 332 is fixedly arranged on the inner wall of one of the communication areas 33, a sliding block 333 used for being in sliding connection with the sliding rail 332 is arranged at the bottom of the scraper 331, an elastic telescopic column 334 used for being connected with the sliding block 333 is arranged in the sliding rail 332, the elastic telescopic column 334 is composed of a telescopic column and a spring, an impurity removing part 7 used for removing the water and the impurities on the scraper 331 is arranged in one of the communication areas 33, and a storage part 8 used for collecting the water and the impurities is arranged in one of the communication areas 33; the impurity removing member 7 in the present scheme includes a driving frame 71 disposed inside one of the communicating regions 33, and an impurity removing plate 72 for cleaning impurities and moisture on the surface of the scraper 331 is mounted on the driving frame 71, wherein the impurity removing plate 72 is slidably connected with the driving frame 71 (a plurality of grooves are disposed on the driving frame 71, and a projection for slidably connecting with the impurity removing plate 72 is disposed on the impurity removing plate 72), a guide seat 73 is fixedly mounted on the driving frame 71, a guide column 74 for slidably connecting with the guide seat 73 is fixedly mounted on the inner wall of one of the communicating regions 33, and a power member 9 for enabling the driving frame 71 to perform directional movement inside the communicating region 33 is disposed on one of the communicating regions 33; the driving frame 71 is provided with a slot 75, the impurity removing plate 72 is provided with a limiting column 76 which is used for being in sliding connection with the slot 75, the limiting column 76 is provided with a spherical limiting piece 77, the driving frame 71 is fixedly provided with a magnetic piece A711, and the scraper 331 is provided with a magnetic piece B335 which is used for being in mutual attraction with the magnetic piece A711; one side inner wall of one of the communication areas 33 is provided with a limit groove 10 for sliding connection with the spherical limit piece 77, the limit groove 10 comprises a straight area 101, a descending area 102 and a returning area 103, the impurity removing plate 72 in an initial state is positioned above the scraping plate 331, and when the driving frame 71 acts on the power piece 9When the downward directional movement is carried out, the impurity removing plate 72 carries out the directional movement along the straight-going area 101, the descending area 102 and the returning area 103 of the limiting groove 10 under the action of the spherical limiting piece 77, when the downward directional movement is carried out to the position where the scraping plate 331 scrapes impurities of the water absorption roller 5, the impurity removing plate 72 is positioned in the descending area 102, and at the moment, the power piece 9 enables the driving frame 71 to drive the impurity removing plate 72 to carry out the returning movement so as to clean the impurities containing water on the scraping plate 331; the first embodiment is as follows:

the power part 9 of the embodiment includes a cam body 91 arranged on one side of one of the connection regions, the rotating shaft 63 penetrates through the inner wall of one of the connection regions and extends onto the cam body 91, a roller body 92 for being attached to the cam body 91 is arranged on the communication region 33, a support seat 93 is arranged on the roller body 92, a baffle 94 is fixedly arranged on one side of one of the communication regions 33, a spring body 95 is connected between the support seat 93 and the baffle 94, a power column 96 is arranged on the support seat 93, a connecting plate 97 is arranged at one end of the power column 96, a transmission column 98 is arranged on the connecting plate 97, the transmission column 98 penetrates through the communication region 33 and extends onto the driving frame 71, so that the motor body 62 drives the water absorption roller 5 to rotate through the rotating shaft 63, and the cam body 91 is driven to act on the roller body 92, so that the roller body 92 drives the transmission column 98 to act on the driving frame 71 through the power column 96 under the action of the connecting plate 97, and the driving frame 71 drives the scraper 331 to periodically clean the water absorption roller 5; example two:

two deacidification tower bodies 1 that are applicable to relative ageing of this embodiment, because deacidification tower body 1 is ageing, its water spray volume is not convenient for adjust, and then the too much situation of water spray volume can appear often, power part 9 is including setting up electric putter 90 on the regional 33 of intercommunication, and electric putter 90 bottom is connected with 2 outer walls of sack cleaner body, wherein electric putter 90 output runs through the regional 33 of intercommunication and extends to on the driving frame 71, can clear up scraper blade 331 in real time through electric putter 90, it again adheres on the roller 5 that absorbs water to avoid the moisture impurity on the scraper blade 331.

The storage part 8 in the scheme comprises a drainage frame 81 arranged in one of the communication areas 33, a conveying pipe 82 is arranged on the drainage frame 81, a collecting frame 83 is arranged at one end of the conveying pipe 82, the collecting frame 83 is fixedly arranged on the bag-type dust collector body 2, an electromagnetic valve 84 is arranged on the conveying pipe 82, and a three-way valve 34 is arranged at the intersection among the conveying area 31, the screening area 32 and the communication area 33; detection component 4 or humidity transducer 11 detect the water content in the gas, when the water content in the gas is greater than the rated value, three-way valve 34 opens the intercommunication area 33 that communicates in one of them sack cleaner body 2, close another intercommunication area 33, and send signal to solenoid valve 84 on the conveyer pipe 82, make it be in the off-state, motor body 62 receives the signal of telecommunication and drives the roller 5 that absorbs water and rotate, absorb the moisture in the gas, it clears up to remove miscellaneous 7 under the effect of power spare 9 the moisture impurity on scraper blade 331 simultaneously, thereby avoid appearing the material wet, the wall built-up, cause the situation of sticking with paste the bag to the sack.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a semidry process deacidification tower, includes deacidification tower body (1), deacidification tower body (1) one side is provided with two sack cleaner bodies (2), two be connected its characterized in that through connecting tube (3) with it between sack cleaner body (2) and deacidification tower body (1): the connecting pipeline (3) comprises a conveying area (31), a screening area (32) and a communicating area (33), the communicating area (33) is respectively connected to the two bag-type dust collector bodies (2), a detection assembly (4) for detecting the gas humidity is arranged in the conveying area (31), a water absorption roller (5) for absorbing gas moisture is arranged in one of the communicating areas (33), and a driving assembly (6) for driving the water absorption roller (5) to uniformly absorb the gas moisture is arranged on the bag-type dust collector body (2);

the detection assembly (4) comprises a detection panel (41) arranged in a conveying area (31), a placing frame (42) is arranged on the conveying area (31), a driving column (43) is arranged in the placing frame (42), the driving column (43) penetrates through the inner wall of the placing frame (42) and extends to the detection panel (41), a circular plate body (44) is arranged on the driving column (43), a return spring (45) is arranged between the circular plate body (44) and the inner wall of the placing frame (42), an electric button (46) is arranged in the placing frame (42), and the electric button (46) is arranged below the driving column (43);

the driving assembly (6) comprises a supporting frame (61) arranged on the bag-type dust collector body (2), a motor body (62) is arranged on the supporting frame (61), and a rotating shaft (63) used for being connected with the water absorption roller (5) is arranged at the output end of the motor body (62);

a scraper (331) used for removing moisture and impurities on a water absorption roller (5) is arranged in one of the communicating areas (33), a slide rail (332) is arranged in one of the communicating areas (33), a slide block (333) used for being in sliding connection with the slide rail (332) is arranged on the scraper (331), an elastic telescopic column (334) used for being connected with the slide block (333) is arranged in the slide rail (332), an impurity removing piece (7) used for cleaning the moisture and the impurities on the scraper (331) is arranged in one of the communicating areas (33), and a storage piece (8) used for collecting the moisture and the impurities is arranged in one of the communicating areas (33);

the impurity removing part (7) comprises a driving frame (71) arranged in one of the communicating areas (33), an impurity removing plate (72) used for cleaning impurities and moisture on the surface of the scraper blade (331) is arranged on the driving frame (71), the impurity removing plate (72) is in sliding connection with the driving frame (71), a guide seat (73) is arranged on the driving frame (71), a guide column (74) used for being in sliding connection with the guide seat (73) is arranged on the inner wall of one of the communicating areas (33), and a power part (9) used for enabling the driving frame (71) to perform directional movement in the communicating area (33) is arranged on one of the communicating areas (33);

wherein the driving frame (71) is provided with a slot (75), the impurity removing plate (72) is provided with a limit column (76) which is used for sliding connection with the slot (75), and the limit column (76) is provided with a spherical limit piece (77);

a limiting groove (10) used for being in sliding connection with a spherical limiting piece (77) is formed in the inner wall of one side of one of the communicating areas (33), and the limiting groove (10) comprises a straight area (101), a descending area (102) and a returning area (103);

the driving frame (71) is provided with a magnetic member A (711), and the scraper (331) is provided with a magnetic member B (335) for attracting and acting with the magnetic member A (711).

2. The semi-dry deacidification tower according to claim 1, wherein: the power part (9) comprises a cam body (91) arranged on one of the connecting areas, the rotating shaft (63) penetrates through the inner wall of one of the connecting areas and extends onto the cam body (91), a roller body (92) which is used for being attached to the cam body (91) is arranged on the communicating area (33), a supporting seat (93) is arranged on the roller body (92), a baffle (94) is arranged on one of the communicating areas (33), a spring body (95) is arranged between the supporting seat (93) and the baffle (94), and a power column (96) is arranged on the supporting seat (93);

one end of the power column (96) is provided with a connecting plate (97), a transmission column (98) is arranged on the connecting plate (97), and the transmission column (98) penetrates through the communication area (33) and extends to the driving frame (71).

3. The semi-dry deacidification tower according to claim 2, wherein: storage piece (8) are including setting up in inside drainage frame (81) of one of them communicating region (33), be provided with conveyer pipe (82) on drainage frame (81), just conveyer pipe (82) one end is provided with collects frame (83), wherein be provided with solenoid valve (84) on conveyer pipe (82), the crossing department is provided with three-way valve (34) between conveying region (31), screening region (32) and communicating region (33).

4. The semi-dry deacidification tower according to claim 3, wherein: the power part (9) comprises an electric push rod (90) arranged on the communicating region (33), the bottom of the electric push rod (90) is connected with the outer wall of the bag-type dust collector body (2), and the output end of the electric push rod (90) penetrates through the communicating region (33) and extends to the driving frame (71).