CN217795117U - Desulfurization and denitrification dust remover for boiler flue gas purification - Google Patents

Abstract

The utility model belongs to the technical field of boiler flue gas treatment, be used for solving and making the filter screen keep unobstructed at present, the filtering operation is difficult to go on smoothly continuously, and to the not good problem of denitration desulfurization effect of flue gas, specifically a desulfurization and denitrification dust remover for boiler flue gas purification, including flue gas dust removal case and desulfurization and denitrification case, be equipped with SOx/NOx control mechanism in the desulfurization and denitrification case, install smoke and dust filter screen plate in the flue gas dust removal case, the top of smoke and dust filter screen plate is installed with elastic mechanism, the eccentric wheel withstands the bottom of smoke and dust filter screen plate, the outer peripheral face fixed mounting of air inlet drive shaft has the rotation flabellum, the air inlet drive shaft is connected with the rotary rod meshing; the utility model discloses in, make the smoke and dust filter plate shake under eccentric wheel and top elastic mechanism's combined action, help shaking off attached to the smoke and dust particulate matter on the filter plate is crossed to the smoke and dust, the imbibition filter cloth layer carries out SOx/NOx control to the flue gas, has guaranteed SOx/NOx control efficiency and SOx/NOx control effect.

Description

Desulfurization and denitrification dust remover for boiler flue gas purification

Technical Field

The utility model relates to a boiler flue gas handles technical field, specifically is a boiler is SOx/NOx control dust remover for gas cleaning.

Background

The boiler is an energy conversion device, energy input to the boiler comprises chemical energy and electric energy in fuel, the boiler outputs steam, high-temperature water or an organic heat carrier with certain heat energy, a large amount of smoke is generated in the operation process of the boiler, the smoke contains smoke dust, nitrate-containing sulfur-containing gas, and if the smoke is directly discharged into the atmosphere, the smoke dust, the nitrate-containing sulfur-containing gas in the smoke can cause serious pollution to the atmospheric environment and can bring serious harm to the health of people, so the smoke generated in the operation process of the boiler needs to be purified;

at present, when boiler flue gas is purified, the flue gas is mainly filtered through a filter screen, smoke dust particles in the flue gas are removed through the filtering effect, but in the filtering process, a large number of smoke dust particles are attached to the filter screen, along with the gradual accumulation of the particles at a smoke dust opening, the filter holes of the filter screen are easily blocked, the filter screen is difficult to keep smooth, the filtering operation is difficult to continuously and smoothly carry out, and at present, the denitration and desulfurization of the flue gas are mainly carried out through denitration and desulfurization liquid, but the flue gas is difficult to fully contact with the denitration and desulfurization liquid in the purifying process, and the denitration and desulfurization effects on the flue gas are poor;

in view of the above technical drawbacks, a solution is proposed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a boiler is SOx/NOx control dust remover for gas cleaning, solved present when purifying the boiler flue gas, the smoke and dust particulate matter is attached to on the filter screen in a large number, causes the filtration pore of filter screen to block up easily, is difficult to make the filter screen keep unobstructed, leads to filtering operation to be difficult to continuously go on smoothly, and is difficult to make flue gas and denitration desulfurization liquid fully contact in purifying process, to the not good problem of denitration desulfurization effect of flue gas.

In order to achieve the above object, the utility model provides a following technical scheme:

a desulfurization and denitrification dust remover for boiler flue gas purification comprises a flue gas dust removal box and a desulfurization and denitrification box, wherein the desulfurization and denitrification box is fixedly arranged at the top of the flue gas dust removal box through bolts, the desulfurization and denitrification box is communicated with the flue gas dust removal box through a first communicating pipe, a desulfurization and denitrification mechanism is arranged in the desulfurization and denitrification box, and a discharge box is fixedly arranged at the top of the desulfurization and denitrification box;

a smoke dust filtering screen plate is horizontally arranged in the smoke dust removing box, a dust collecting box communicated with the smoke dust removing box is fixedly arranged at the bottom of the smoke dust removing box, an elastic mechanism connected with the inner wall of the smoke dust removing box is arranged at the top of the smoke dust filtering screen plate, a rotating rod is rotatably arranged in the smoke dust removing box through a bearing, eccentric wheels are arranged at two ends of the rotating rod, and the eccentric wheels abut against the bottom of the smoke dust filtering screen plate;

an air inlet box communicated with the flue gas dust removal box is fixedly installed on one side of the flue gas dust removal box, a flue gas gathering cover is fixedly installed on one side, far away from the flue gas dust removal box, of the air inlet box, and a flue gas input pipe is installed on the flue gas gathering cover; the position that is close to flue gas gathering cover export one side in the air inlet case rotates installs the air inlet drive shaft, the outer peripheral face fixed mounting of air inlet drive shaft has the rotation flabellum, and the top of air inlet drive shaft wears out the air inlet case and is connected with the one end meshing of rotary rod through bevel gear group one.

Further, elastic mechanism includes that fixed mounting crosses the otter board installation pole of otter board top both sides at the smoke and dust, the both sides inner wall fixed mounting of flue gas dust removal case has the fixed block that is located smoke and dust and crosses the otter board top, and otter board installation pole upwards pass correspond the fixed block and with kicker fixed connection, the outer peripheral face cover of otter board installation pole is equipped with the spring that pushes down, just pushes down the bottom of spring coupling smoke and dust filtration otter board's top and fixed block.

Further, the desulfurization and denitrification mechanism comprises a rotary barrel arranged in the desulfurization and denitrification box, a liquid absorption filter cloth layer is arranged on the outer peripheral surface of the rotary barrel, a rotary air guide shaft rotatably connected with the desulfurization and denitrification box is arranged at the top of the rotary barrel, the rotary air guide shaft is hollow inside and provided with an opening at the bottom end, and the bottom end of the rotary air guide shaft extends into the rotary barrel and is communicated with the rotary barrel;

the desulfurization and denitrification box is provided with an infusion pump, a liquid collecting pipe is vertically arranged in the desulfurization and denitrification box, an infusion pipe communicated with the liquid collecting pipe is arranged on the infusion pump, a plurality of groups of liquid spraying heads are arranged on the liquid collecting pipe, and the liquid spraying direction of the liquid spraying heads faces to the liquid absorption filter cloth layer.

Furthermore, an air outlet cavity is formed in the desulfurization and denitrification box, the rotary air guide shaft axially penetrates through the air outlet cavity, an air outlet communicated with the air outlet cavity is formed in the rotary air guide shaft, the top end of the rotary air guide shaft is closed, a second communicating pipe communicated with the air outlet cavity is installed on the desulfurization and denitrification box, and the other end of the second communicating pipe is communicated with the air exhaust box.

Furthermore, the top of the air exhaust box is provided with an air outlet, an air exhaust shaft is rotatably installed in the air exhaust box through a bearing, an air exhaust fan blade is arranged on the outer peripheral surface of the air exhaust shaft, the air exhaust direction of the air exhaust fan blade faces the upper side, and the communication position of the second communication pipe and the air exhaust box is located below the air exhaust fan blade.

Furthermore, a transmission cavity is formed in the desulfurization and denitrification box, the bottom end of the air exhaust shaft extends downwards into the transmission cavity and is fixedly connected with the top end of the rotary air guide shaft, a driving motor is fixedly mounted on the desulfurization and denitrification box through a motor base, and an output shaft of the driving motor extends into the transmission cavity and is meshed with the air exhaust shaft through a bevel gear set II.

Compared with the prior art, the beneficial effects of the utility model are that:

1. in the utility model, the smoke is filtered by the smoke filtering screen plate to filter dust particles in the smoke, the dust collecting box collects the filtered dust particles, the smoke is collected by the smoke collecting cover and sprayed into the air inlet box, the autorotation fan blades in the air inlet box drive the air inlet driving shaft to rotate under the action of the sprayed smoke, finally the eccentric wheel is rotated, the smoke filtering screen plate shakes up and down under the combined action of the eccentric wheel and the upper elastic mechanism, the smoke particles attached to the lower surface of the smoke filtering screen plate are shaken off, the problem that the filtering holes are blocked by the particles after long-time use is avoided, and the smoke filtering effect and the smoke filtering efficiency are ensured;

2. the utility model discloses in, carry out SOx/NOx control to the flue gas through the imbibition filter cloth layer of rotatory bucket outer peripheral face, the flue gas after SOx/NOx control is discharged through rotatory wind-guiding axle, in SOx/NOx control process, the transfer pump passes through the transfer line and carries SOx/NOx control agent solution to the collector tube in, the collector tube passes through the hydrojet head and spouts solution to the imbibition filter cloth layer, rotatory wind-guiding axle makes rotatory bucket rotate, can make the imbibition filter cloth layer remain moist state throughout, guaranteed SOx/NOx control efficiency and SOx/NOx control effect;

3. the utility model discloses in, it is rotatory to drive exhaust fan leaf through the axle of airing exhaust to make exhaust fan leaf below be in negative pressure state, help purifying the discharge of back flue gas, play the induced air and accelerate gas outgoing's effect, improved flue gas treatment efficiency, and driving motor drives exhaust axle and rotatory wind-guiding axle through the output shaft and carries out synchronous rotation, do not need two sets of drive arrangement to install and drive exhaust axle and spin-induced wind axle respectively, reduced equipment cost and running cost.

Drawings

In order to facilitate understanding of the present invention for those skilled in the art, the present invention will be further described with reference to the accompanying drawings;

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

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic perspective view of the flue gas collecting hood of the present invention;

FIG. 4 is a schematic structural view of a middle desulfurization and denitrification box of the present invention;

FIG. 5 is a schematic top view of the rotary drum and the liquid-absorbing filter cloth layer of the present invention;

fig. 6 is an enlarged view of a portion B in fig. 4.

Reference numerals: 1. a flue gas dust removal box; 2. a dust collection box; 3. a desulfurization and denitrification box; 4. a flue gas collection hood; 5. a flue gas input pipe; 6. an air inlet driving shaft; 7. a self-rotating fan blade; 8. rotating the rod; 9. an eccentric wheel; 10. a smoke dust filter screen plate; 11. an air inlet box; 12. a fixed block; 13. pressing down the spring; 14. a screen board mounting rod; 15. a top block; 16. a first communication pipe; 17. an infusion pump; 18. a transfusion tube; 19. an exhaust box; 20. a second communicating pipe; 21. rotating the barrel; 22. a liquid-absorbing filter cloth layer; 23. a liquid collecting pipe; 24. a liquid jet head; 25. a drive motor; 26. a rotating wind guide shaft; 27. an air outlet; 28. an air outlet cavity; 29. a transmission cavity; 30. a wind discharging shaft; 31. an output shaft; 32. and discharging the fan blades.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The first embodiment is as follows:

as shown in fig. 1-5, the utility model provides a boiler flue gas purification is with SOx/NOx control dust remover, including flue gas dust removal case 1 and SOx/NOx control case 3, SOx/NOx control case 3 passes through bolt fixed mounting at the top of flue gas dust removal case 1, horizontal safety is equipped with smoke and dust filter screen board 10 in flue gas dust removal case 1, smoke and dust filter screen board 10 filters the flue gas in order to filter the dust particulate matter therein, and the bottom fixed mounting of flue gas dust removal case 1 has dust collection box 2 rather than communicating with it, the dust particulate matter that filters off falls and gets into dust collection box 2, dust collection box 2 collects the dust particulate matter that filters off, in order to facilitate later stage clearance, the elastic mechanism who links to each other with flue gas dust removal case 1 inner wall is installed at the top of smoke and dust collection screen board 10, install rotary rod 8 through the bearing rotation in flue gas dust removal case 1, eccentric wheel 9 is installed at the both ends of rotary rod 8, and eccentric wheel 9 withstands the bottom of smoke and dust filter screen board 10;

an air inlet box 11 communicated with the flue gas dust removal box 1 is fixedly installed on one side of the air inlet box 11 far away from the flue gas dust removal box 1, a flue gas gathering cover 4 is fixedly installed on one side of the air inlet box 11, a flue gas input pipe 5 is installed on the flue gas gathering cover 4, boiler flue gas is conveyed into the flue gas gathering cover 4 through the flue gas input pipe 5, and the flue gas is gathered by the flue gas gathering cover 4 and then sprayed into the air inlet box 11; an air inlet driving shaft 6 is rotatably installed at a position, close to one side of an outlet of the smoke gathering cover 4, in the air inlet box 11, an autorotation fan blade 7 is fixedly installed on the outer peripheral surface of the air inlet driving shaft 6, the autorotation fan blade 7 drives the air inlet driving shaft 6 to rotate under the action of sprayed smoke, and the air inlet driving shaft 6 drives a rotating rod 8 to rotate through a bevel gear;

the elastic mechanism comprises screen mounting rods 14 fixedly mounted on two sides of the top of the smoke dust filtering screen plate 10, fixed blocks 12 positioned above the smoke dust filtering screen plate 10 are fixedly mounted on the inner walls of two sides of the smoke dust removing box 1, the screen mounting rods 14 upwards penetrate through the corresponding fixed blocks 12 and are fixedly connected with a top block 15, a pressing spring 13 is sleeved on the outer peripheral surface of each screen mounting rod 14, the pressing spring 13 is connected with the top of the smoke dust filtering screen plate 10 and the bottom of the fixed block 12, in the smoke dust filtering operation process, a rotating rod 8 drives two groups of eccentric wheels 9 to rotate, the smoke dust filtering screen plate 10 is vibrated up and down while performing filtering operation under the combined action of the eccentric wheels 9 and the elastic mechanism, smoke dust particles attached to the lower surface of the smoke dust filtering screen plate 10 are shaken off, and filter holes are ensured to be smooth;

the desulfurization and denitrification box 3 is communicated with the flue gas dust removal box 1 through a first communicating pipe 16, a desulfurization and denitrification mechanism is arranged in the desulfurization and denitrification box 3, and specifically, the desulfurization and denitrification mechanism comprises a rotary barrel 21 arranged in the desulfurization and denitrification box 3, a liquid absorption filter cloth layer 22 is arranged on the outer peripheral surface of the rotary barrel 21, a rotary air guide shaft 26 rotatably connected with the desulfurization and denitrification box 3 is arranged at the top of the rotary barrel 21, the inside of the rotary air guide shaft 26 is hollow, an opening is formed in the bottom end of the rotary air guide shaft 26, the bottom end of the rotary air guide shaft 26 extends into the rotary barrel 21 and is communicated with the rotary barrel, flue gas filtered by smoke dust enters the desulfurization and denitrification box 3 through the first communicating pipe 16, a desulfurization and denitrification solution is adsorbed on the liquid absorption filter cloth layer 22 on the outer peripheral surface of the rotary barrel 21 and is used for desulfurization and denitrification, and the flue gas after desulfurization and denitrification enters the rotary barrel 21 and is discharged through the rotary air guide shaft 26;

the desulfurization and denitrification box 3 is provided with an infusion pump 17, a liquid collecting pipe 23 is vertically arranged in the desulfurization and denitrification box 3, an infusion pipe 18 communicated with the liquid collecting pipe 23 is arranged on the infusion pump 17, a plurality of groups of liquid spraying heads 24 are arranged on the liquid collecting pipe 23, the liquid spraying direction of the liquid spraying heads 24 faces towards a liquid absorption filter cloth layer 22, in the desulfurization and denitrification process, the infusion pump 17 conveys a desulfurization and denitrification agent solution into the liquid collecting pipe 23 through the infusion pipe 18, the liquid spraying heads 24 spray the solution to the liquid absorption filter cloth layer 22, and meanwhile, the rotary barrel 21 rotates, so that the liquid absorption filter cloth layer 22 can be always kept in a wet state, and the desulfurization and denitrification efficiency and the desulfurization and denitrification effect are ensured; preferably, the inside bottom of SOx/NOx control case 3 is stored with SOx/NOx control agent solution, and the entry of transfer line 18 is in the inside SOx/NOx control agent solution of submergence, improves SOx/NOx control agent solution's utilization ratio and reduces the use amount.

Example two:

as shown in fig. 4-5, the difference between this embodiment and embodiment 1 is that an exhaust box 19 is fixedly installed at the top of a desulfurization and denitrification box 3, an exhaust cavity 28 is formed in the desulfurization and denitrification box 3, the top end of a rotary air guide shaft 26 is closed and upwardly penetrates through the exhaust cavity 28, an air outlet 27 communicated with the exhaust cavity 28 is formed in the rotary air guide shaft 26, a second communicating pipe 20 communicated with the exhaust cavity 28 is installed on the desulfurization and denitrification box 3, the other end of the second communicating pipe 20 is communicated with the exhaust box 19, flue gas subjected to desulfurization, denitrification and dedusting enters the exhaust cavity 28 through the rotary air guide shaft 26, and the second communicating pipe 20 conveys the purified flue gas into the exhaust box 19;

the top of the exhaust box 19 is provided with an air outlet, the purified flue gas is finally discharged through the air outlet, an exhaust shaft 30 is rotatably installed in the exhaust box 19 through a bearing, an exhaust fan blade 32 is arranged on the outer peripheral surface of the exhaust shaft 30, the exhaust direction of the exhaust fan blade 32 faces upwards, the communication part of the second communication pipe 20 and the exhaust box 19 is positioned below the exhaust fan blade 32, and during operation, the exhaust shaft 30 drives the exhaust fan blade 32 to rotate, so that the lower part of the exhaust fan blade 32 is in a negative pressure state, the purified flue gas is favorably discharged, the effects of inducing air and accelerating gas discharge are achieved, and the flue gas treatment efficiency is improved.

Example three:

as shown in fig. 4-6, the present embodiment is different from embodiments 1 and 2 in that a transmission cavity 29 is formed in the desulfurization and denitrification box 3, the bottom end of the exhaust shaft 30 extends downward into the transmission cavity 29 and is fixedly connected with the top end of the rotary air guiding shaft 26, a driving motor 25 is fixedly mounted on the desulfurization and denitrification box 3 through a motor base, an output shaft 31 is mounted at the output end of the driving motor 25, and the output shaft 31 extends into the transmission cavity 29 and is engaged with the exhaust shaft 30 through a bevel gear set two;

in the working process, the driving motor 25 drives the exhaust shaft 30 to rotate through the output shaft 31, the exhaust shaft 30 and the rotary air guide shaft 26 rotate synchronously, and finally, the induced air exhaust operation of the exhaust fan blade 32 and the rotary operation of the rotary barrel 21 are realized, two groups of driving devices are not required to be installed to respectively drive the exhaust shaft 30 and the rotary air guide shaft 26, so that the equipment cost and the operation cost are reduced, and the use is facilitated.

Example four:

the embodiment is different from the embodiments 1, 2 and 3 in that the exhaust gas detection device further comprises an exhaust gas detection box, an inlet of the exhaust gas detection box is connected with an outlet of the exhaust gas box 19 through a pipeline, an acousto-optic alarm is fixedly mounted on the exhaust gas detection box, the exhaust gas detection box detects the quality condition of exhaust gas, if the exhaust gas quality is unqualified, the flue gas treatment effect is poor, problems exist in an internal flue gas treatment component and a treatment process, and the acousto-optic alarm gives an alarm to remind an operator of maintenance.

The working process and the principle of the utility model are as follows:

when the device is used, boiler flue gas is conveyed into the flue gas gathering cover 4 through the flue gas input pipe 5, the flue gas is gathered by the flue gas gathering cover 4 and then sprayed into the air inlet box 11, the air inlet box 11 conveys the flue gas to the position below the flue gas filtering screen plate 10, the flue gas is filtered by the flue gas filtering screen plate 10 to filter dust particles in the flue gas, the filtered dust particles fall down and enter the dust collection box 2, and the dust collection box 2 collects the filtered dust particles to facilitate later cleaning;

the self-rotating fan blades 7 in the air inlet box 11 are driven by the sprayed flue gas to drive the air inlet driving shaft 6 to rotate, the air inlet driving shaft 6 drives the rotating rod 8 to rotate, the two groups of eccentric wheels 9 rotate along with the rotation of the rotating rod, and the smoke dust filter screen plate 10 is vibrated up and down while performing filtering operation under the combined action of the eccentric wheels 9 and the upper elastic mechanism, so that smoke dust particles attached to the lower surface of the smoke dust filter screen plate 10 can be shaken off, unsmooth filtering caused by the fact that the particles are attached to and block filter holes after long-time use is avoided, and the smoke dust filtering effect and the smoke dust filtering efficiency are ensured;

through in the filterable flue gas of smoke and dust gets into SOx/NOx control case 3 through first communicating pipe 16, SOx/NOx control solution has been adsorbed on the imbibition filter cloth layer 22 of rotatory bucket 21 outer peripheral face, imbibition filter cloth layer 22 carries out SOx/NOx control to the flue gas, flue gas after SOx/NOx control gets into rotatory bucket 21 in and discharges through rotatory guide wind axle 26, and at SOx/NOx control in-process, transfer pump 17 carries SOx/NOx control agent solution to collector tube 23 in through transfer line 18, collector tube 23 passes through hydrojet 24 with the solution to imbibition filter cloth layer 22, rotatory guide wind axle 26 makes rotatory bucket 21 rotate, can make imbibition filter cloth layer 22 remain moist state throughout, SOx/NOx control efficiency and SOx/NOx control effect have been guaranteed.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, thereby enabling others skilled in the art to best understand the invention and its practical application. The present invention is limited only by the claims and their full scope and equivalents.

Claims (5)

1. A desulfurization and denitrification dust remover for boiler flue gas purification comprises a flue gas dust removal box (1) and a desulfurization and denitrification box (3), wherein the desulfurization and denitrification box (3) is fixedly installed at the top of the flue gas dust removal box (1) through bolts, and the desulfurization and denitrification box (3) is communicated with the flue gas dust removal box (1) through a first communicating pipe (16), and is characterized in that a desulfurization and denitrification mechanism is arranged in the desulfurization and denitrification box (3), and an exhaust box (19) is fixedly installed at the top of the desulfurization and denitrification box (3);

a smoke dust filtering screen plate (10) is horizontally arranged in the smoke dust removing box (1), a dust collecting box (2) communicated with the smoke dust removing box (1) is fixedly arranged at the bottom of the smoke dust removing box (1), an elastic mechanism connected with the inner wall of the smoke dust removing box (1) is arranged at the top of the smoke dust filtering screen plate (10), a rotating rod (8) is rotatably arranged in the smoke dust removing box (1) through a bearing, eccentric wheels (9) are arranged at two ends of the rotating rod (8), and the eccentric wheels (9) support the bottom of the smoke dust filtering screen plate (10);

an air inlet box (11) communicated with the flue gas dust removal box (1) is fixedly installed on one side of the flue gas dust removal box (1), a flue gas gathering cover (4) is fixedly installed on one side, far away from the flue gas dust removal box (1), of the air inlet box (11), and a flue gas input pipe (5) is installed on the flue gas gathering cover (4); the flue gas gathering cover is characterized in that an air inlet driving shaft (6) is rotatably mounted at a position, close to one side of an outlet of the flue gas gathering cover (4), in the air inlet box (11), an autorotation fan blade (7) is fixedly mounted on the outer peripheral surface of the air inlet driving shaft (6), and the top end of the air inlet driving shaft (6) penetrates out of the air inlet box (11) and is connected with one end of a rotating rod (8) in a meshing mode through a bevel gear set I.

2. The desulfurization and denitrification dust remover for purifying boiler flue gas according to claim 1, wherein the elastic mechanism comprises screen mounting rods (14) fixedly mounted on two sides of the top of the smoke filter screen (10), fixed blocks (12) positioned above the smoke filter screen (10) are fixedly mounted on inner walls on two sides of the smoke dust removing box (1), the screen mounting rods (14) upwards penetrate through the corresponding fixed blocks (12) and are fixedly connected with the top block (15), a downward pressing spring (13) is sleeved on the outer peripheral surface of each screen mounting rod (14), and the downward pressing spring (13) is connected with the top of the smoke filter screen (10) and the bottom of the fixed block (12).

3. The desulfurization and denitrification dust remover for purifying boiler flue gas as claimed in claim 1, wherein the desulfurization and denitrification mechanism comprises a rotary barrel (21) arranged in the desulfurization and denitrification box (3), a liquid absorption filter cloth layer (22) is arranged on the outer peripheral surface of the rotary barrel (21), a rotary air guide shaft (26) rotatably connected with the desulfurization and denitrification box (3) is arranged at the top of the rotary barrel (21), the rotary air guide shaft (26) is hollow, an opening is formed in the bottom end of the rotary air guide shaft, and the bottom end of the rotary air guide shaft (26) extends into the rotary barrel (21) and is communicated with the rotary barrel;

install transfer pump (17) on SOx/NOx control case (3), vertical collector tube (23) that sets up in SOx/NOx control case (3), and install on transfer pump (17) with communicating transfer line (18) of collector tube (23), install multiunit hydrojet head (24) on collector tube (23), and the hydrojet direction of hydrojet head (24) is towards imbibition filter cloth layer (22).

4. The desulfurization and denitrification dust remover for boiler flue gas purification according to claim 3, wherein an air outlet cavity (28) is formed in the desulfurization and denitrification box (3), the rotary air guide shaft (26) upwardly penetrates through the air outlet cavity (28), an air outlet (27) communicated with the air outlet cavity (28) is formed in the rotary air guide shaft (26), the top end of the rotary air guide shaft (26) is closed, a second communicating pipe (20) communicated with the air outlet cavity (28) is installed on the desulfurization and denitrification box (3), and the other end of the second communicating pipe (20) is communicated with the air exhaust box (19).

5. The desulfurization and denitrification dust remover for purifying boiler flue gas as claimed in claim 4, wherein an air outlet is arranged at the top of the air exhaust box (19), an air exhaust shaft (30) is rotatably mounted in the air exhaust box (19) through a bearing, an air exhaust fan blade (32) is arranged on the outer peripheral surface of the air exhaust shaft (30), the air exhaust direction of the air exhaust fan blade (32) faces upwards, and the communication position of the second communication pipe (20) and the air exhaust box (19) is positioned below the air exhaust fan blade (32);

set up transmission chamber (29) in SOx/NOx control case (3), the bottom downwardly extending of exhaust axle (30) go into in transmission chamber (29) and with the top fixed connection of rotating guide wind axle (26), there are driving motor (25) through motor cabinet fixed mounting on SOx/NOx control case (3), and output shaft (31) of driving motor (25) extend into in transmission chamber (29) and through bevel gear group two with exhaust axle (30) meshing connection.

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