CN210332248U

CN210332248U - High-efficient boiler dust removal SOx/NOx control device

Info

Publication number: CN210332248U
Application number: CN201920919604.4U
Authority: CN
Inventors: 许炜; 陈尼青
Original assignee: Zhejiang Qianyao Environmental Engineering Co ltd
Current assignee: Zhejiang Qianyao Environmental Engineering Co ltd
Priority date: 2019-06-18
Filing date: 2019-06-18
Publication date: 2020-04-17
Anticipated expiration: 2029-06-18

Abstract

The utility model relates to a thermoelectricity field specifically is a high-efficient boiler dust removal SOx/NOx control device, including the casing, the inside from the top down of casing installs the defroster in proper order, is used for spouting the alkaline absorption liquid spray the layer, open the tray that has a plurality of through-holes, the tray with spray on the casing lateral wall between the layer the intercommunication have the intake pipe, the top intercommunication of casing has the outlet duct, the tray is followed vertical direction sliding connection in casing, installs the drive arrangement who is used for driving the tray and is reciprocating motion on the casing. The fixed impurities on the tray are vibrated to deviate from the through holes along with the reciprocating motion of the tray, so that the blockage of the through holes is effectively reduced.

Description

High-efficient boiler dust removal SOx/NOx control device

Technical Field

The utility model relates to a thermoelectricity field, concretely relates to high-efficient boiler dust removal SOx/NOx control device.

Background

The desulfurization and denitrification tower is tower type equipment for performing desulfurization treatment on industrial waste gas, and the desulfurization and denitrification tower of many manufacturers adopts an empty tower spraying technology. The SOx/NOx control tower includes the casing, the inside from the top down of casing is fixed with the defroster in proper order, a layer that sprays for spouting alkaline absorption liquid, the thick liquid pond, the casing lateral wall is being opened and is having into the tower mouth spraying layer below, the tower mouth has been seted up at the top of casing, acid mist waste gas gets into the SOx/NOx control tower from going into the tower mouth, the sulphide that sprays layer spun alkaline absorption liquid and in the acid mist waste gas carries out gas-liquid contact and absorbs and react, the acid mist waste gas after detaching the sulphide is dehydrated through the defroster again, take out from a tower mouth through the fan and leave and go into the atmosphere. Meanwhile, the dust particles in the acid mist waste gas and the alkaline absorption liquid drops have the effects of inertial collision, interception, diffusion, agglomeration, gravity settling and the like, so that the dust is trapped. The alkaline absorption liquid absorbs sulfur dioxide, dust and other pollutants of sulfur from the acid mist waste gas, then becomes turbid liquid, falls into a slurry pool below the desulfurization and denitrification tower, and is forcibly oxidized and crystallized in the slurry pool.

Because the acid mist waste gas generally enters the desulfurization and denitrification tower along the horizontal direction, after the acid mist waste gas enters the desulfurization and denitrification tower, the flow velocity of the acid mist waste gas close to the tower inlet is low, and the flow velocity of the acid mist waste gas far away from the tower inlet is high, so that the flow velocity of the acid mist waste gas is not uniformly distributed on the cross section of the desulfurization and denitrification tower, the bias flow phenomenon of the acid mist waste gas is caused, a vortex area is formed, meanwhile, the cross section of the desulfurization and denitrification tower is large, the flow velocity distribution of the acid mist waste gas in the desulfurization and denitrification tower is not uniform, the acid mist waste gas and an alkaline absorption liquid are not fully reacted, and the desulfurization.

In order to let the acid mist waste gas that gets into in the SOx/NOx control tower can the even flow, now more general practice is to let the acid mist waste gas get into the SOx/NOx control tower with decurrent angle of attack to set up the tray that opens and have a plurality of through-holes in the casing and improve the even degree that the acid mist waste gas flows in the SOx/NOx control tower. Have the liquid layer of holding of take the altitude above the tray, the liquid layer is held to the through-hole upwards passing of acid mist waste gas below the tray, and muddy liquid on the tray passes through the through-hole and falls to the thick liquid pond, and this kind of prior art makes the through-hole take place the problem of jam because of incrustation scale or crystalline particles's accumulation easily, and the time has been of a specified duration and has influenced the even degree that acid mist waste gas flows in SOx/NOx control tower easily for the reaction is not abundant, and desulfurization efficiency is low.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a high-efficient boiler dust removal SOx/NOx control device, desulfurization efficiency improves.

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

the utility model provides a high-efficient boiler dust removal SOx/NOx control device, which comprises a housin, the inside from the top down of casing installs the defroster in proper order, a layer that sprays for spouting alkaline absorption liquid, open the tray that has a plurality of through-holes, the intercommunication has the intake pipe on the casing lateral wall of tray below, the top intercommunication of casing has the outlet duct, the tray is along vertical direction sliding connection in casing, install the drive arrangement who is used for driving the tray and be reciprocating motion on the casing, drive arrangement is including installing in shells inner wall's driven gear, mesh in driven gear and along vertical direction sliding connection in the rack of casing, install in the casing and be used for driving driven gear pivoted drive assembly, driven gear shaft connects in shells inner wall to fixed and circumferential direction, rack length direction's one end is fixed with the.

Through adopting above-mentioned technical scheme, behind the drive assembly drive driven gear forward rotation, with driven gear meshing's rack motion to drive the tray fixed with it and move along vertical direction. When the driving assembly drives the driven gear to rotate reversely, the rack meshed with the driven gear moves reversely, and drives the tray fixed with the rack to move reversely along the vertical direction. Therefore, the tray does periodic reciprocating motion in the shell, the fixed impurities on the tray are vibrated to deviate from the through holes along with the reciprocating motion of the tray, and the blockage of the through holes is effectively reduced. The tray does reciprocating motion to play a role in stirring, so that the acid mist waste gas and the alkaline absorption liquid in the shell are fully mixed and reacted.

The utility model discloses a further set up to: the tray is equipped with two, and the through-hole on two trays is alternate arrangement, and driven gear, rack also are equipped with two.

Through adopting above-mentioned technical scheme, increase the area of contact and the reaction time of acid mist waste gas and alkaline absorption liquid through increasing the quantity of tray. Because the through holes on the two trays are arranged alternately, compared with the coaxial through holes on the two trays, the residence time of the acid mist waste gas between the two trays can be prolonged, and the reaction time of the acid mist waste gas and the alkaline absorption liquid is increased, so that the acid mist waste gas and the alkaline absorption liquid are fully reacted. After acid mist waste gas got into the SOx/NOx control tower, earlier through the tray of lower floor, acid mist waste gas is under the effect of a plurality of through-holes of lower floor's tray, to diffusion all around, make on the SOx/NOx control tower cross-section great velocity of flow acid mist waste gas and less velocity of flow acid mist waste gas mix again, reach the effect of flow redistribution, on the basis of lower floor's tray equipartition air current, the upper tray further carries out equipartition again to the air current, can guarantee the acid mist waste gas distribution degree of consistency, improve desulfurization dust removal and defogging ability.

The utility model discloses a further set up to: the driving assembly comprises a driving gear which is arranged on the shell and respectively meshed with the two driven gears, and a driving piece which is arranged on the shell and used for driving the driving gear to rotate, wherein the driving gear is axially fixed and is connected to the shell in a circumferential rotating mode, and the driving gear is located between the two driven gears.

By adopting the technical scheme, after the driving part drives the driving gear to rotate, the driving part respectively rotates in the same direction with the two driven gears meshed with the driving gear, and the driving part respectively moves in the same direction with the racks meshed with the two driven gears. Thus, the two trays fixed with the two racks respectively move in the vertical direction.

The utility model discloses a further set up to: the number of teeth of the driving gear is larger than that of any driven gear.

Through adopting above-mentioned technical scheme, because the number of teeth of driving gear is greater than the number of teeth of driven gear. Therefore, the rotating speed of the driven gear is faster than that of the driving gear, and the moving speed of the tray can be improved.

The utility model discloses a further set up to: the shell is provided with a guide rod, the guide rod sequentially penetrates out of the two racks along the vertical direction, and the two racks are axially and slidably connected to the guide rod along the guide rod

Through adopting above-mentioned technical scheme, two racks slide on the guide bar for rack is along vertical direction's motion.

The utility model discloses a further set up to: the inner wall of the shell is provided with a sliding groove, a sliding protrusion is fixed on the tray, and the sliding protrusion is embedded and is connected to the sliding groove in a sliding mode along the vertical direction.

By adopting the technical scheme, the sliding protrusion is embedded in the sliding groove, so that the side wall of the sliding protrusion is abutted against the groove wall of the sliding groove. The groove wall of the sliding groove limits the shaking of the sliding protrusion, so that the sliding protrusion stably slides in the sliding groove. Thus, the tray fixed to the sliding protrusion is stably moved.

The utility model discloses a further set up to: an elastic piece is fixed on the bottom of the sliding groove.

Through adopting above-mentioned technical scheme, the arch that slides removes in the sliding groove, and when the tank bottom of the protruding and sliding groove of sliding is about to contact, the protruding compression elastic component that slides for the elastic component gives the protruding power of keeping away from the tank bottom of sliding groove of orientation of sliding. Not only slowed down the impact force that the bottom of the groove brought for the slip recess of slip arch, also made the tray receive the influence of elastic component can produce the vibration of small amplitude, the aversion of the impurity on the tray of being convenient for.

The utility model discloses a further set up to: the tray is fixed with liquid storage cotton which is of a porous structure.

Through adopting above-mentioned technical scheme, the alkaline absorption liquid that sprays down at first falls on the stock solution is cotton to there is a stay process on the stock solution cotton, and the acid mist waste gas that comes from the below at this moment enters into the clearance of stock solution cotton through the through-hole, and fully combine with alkaline absorption liquid in the stock solution cotton, thereby effectively improve the route and the area of contact of acid mist waste gas and alkaline absorption liquid contact, improve desulfurization efficiency.

To sum up, the utility model has the advantages of it is following:

1. the fixed impurities on the tray are vibrated to deviate from the through holes along with the reciprocating motion of the tray, so that the blockage of the through holes is effectively reduced;

2. because the through holes on the two trays are arranged alternately, compared with the coaxial through holes on the two trays, the residence time of the acid mist waste gas between the two trays can be prolonged, and the reaction time of the acid mist waste gas and the alkaline absorption liquid is increased, so that the acid mist waste gas and the alkaline absorption liquid are fully reacted.

Drawings

Fig. 1 is a sectional view of the present invention.

Reference numerals: 1. a housing; 11. a sliding groove; 2. a demister; 3. a spray layer; 4. a tray; 41. a through hole; 42. liquid storage cotton; 43. a sliding projection; 5. an air inlet pipe; 6. an air outlet pipe; 7. a drive device; 71. a driven gear; 72. a rack; 73. a drive assembly; 731. a driving gear; 732. a drive member; 8. a guide rod; 9. an elastic member.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1, a high-efficient boiler dust removal SOx/NOx control device, including casing 1, the defroster 2 is installed from the top down in proper order to casing 1 inside, the layer 3 that sprays for spouting alkaline absorption liquid, open the tray 4 that has a plurality of through-holes 41, the intercommunication has intake pipe 5 on the casing 1 lateral wall of tray 4 below, the top intercommunication of casing 1 has outlet duct 6, tray 4 is along vertical direction sliding connection in casing 1, install on the casing 1 and be used for driving tray 4 to be reciprocating motion's drive arrangement 7.

Thus, the tray 4 does periodic reciprocating motion in the housing 1, solid impurities on the tray 4 are vibrated to deviate from the through holes 41 along with the reciprocating motion of the tray 4, and the blockage of the through holes 41 is effectively reduced. The tray 4 makes reciprocating motion to play a role in stirring, so that the acid mist waste gas and the alkaline absorption liquid in the shell 1 are fully mixed and reacted.

The driving device 7 comprises a driven gear 71 mounted on the inner wall of the housing 1, a rack 72 meshed with the driven gear 71 and connected to the housing 1 in a sliding manner along the vertical direction, and a driving assembly 73 mounted on the housing 1 and used for driving the driven gear 71 to rotate, wherein the driven gear 71 is axially fixed and connected to the inner wall of the housing 1 in a circumferential rotating manner, and one end of the rack 72 in the length direction is fixed to the tray 4. Two trays 4 are provided, the through holes 41 on the two trays 4 are arranged alternately in the vertical direction, and two driven gears 71 and two racks 72 are correspondingly provided. The tray 4 is fixed with liquid storage cotton 42, and the liquid storage cotton 42 is of a porous structure.

The driving assembly 73 includes a driving gear 731 mounted on the housing 1 and engaged with the two driven gears 71, and a driving member 732 mounted on the housing 1 and configured to drive the driving gear 731 to rotate. The driving member 732 is a servo motor electrically connected to an external power source, and the driving member 732 includes a motor shaft connected to the driving gear 731. The driving gear 731 is axially fixed and circumferentially rotatably connected to the housing 1, and the driving gear 731 is located between the two driven gears 71. The number of teeth of the driving gear 731 is larger than that of any one of the driven gears 71. The housing 1 is provided with a guide rod 8, the guide rod 8 sequentially penetrates through the two racks 72 along the vertical direction, and the two racks 72 are axially and slidably connected to the guide rod 8 along the guide rod 8. The inner wall of the shell 1 is provided with a sliding groove 11, a sliding protrusion 43 is fixed on the tray 4, and the sliding protrusion 43 is embedded and connected to the sliding groove 11 in a sliding manner along the vertical direction. Since the slide projection 43 is fitted in the slide groove 11, the side wall of the slide projection 43 abuts against the groove wall of the slide groove 11. The groove wall of the slide groove 11 restricts the wobbling of the slide protrusion 43 so that the slide protrusion 43 stably slides in the slide groove 11. An elastic piece 9 is fixed on the groove bottom of the sliding groove 11 in the length direction, and the elastic piece 9 is a spring.

The working principle is as follows: after the driving member 732 drives the driving gear 731 to rotate, the two driven gears 71 respectively engaged with the driving gear 731 rotate in the same direction, and the racks 72 respectively engaged with the two driven gears 71 move in the same direction. In this way, the two trays 4 fixed respectively with the two racks 72 are vertically moved. Thus, the tray 4 fixed to the slide projection 43 is stably moved. The slide protrusion 43 moves within the slide groove 11, and when the slide protrusion 43 comes into contact with the groove bottom of the slide groove 11, the slide protrusion 43 compresses the elastic piece 9, so that the elastic piece 9 gives the force of the slide protrusion 43 toward the groove bottom away from the slide groove 11. Not only the impact force brought by the sliding protrusion 43 to the bottom of the sliding groove 11 is relieved, but also the tray 4 is influenced by the elastic piece 9 to generate small-amplitude vibration, thereby facilitating the displacement of impurities on the tray 4. The surfaces of the parts in the shell 1 are coated with anticorrosive materials.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a high-efficient boiler dust removal SOx/NOx control device, includes casing (1), and casing (1) inside from the top down installs defroster (2) in proper order, is used for spouting spraying layer (3) of alkaline absorption liquid, opens tray (4) that have a plurality of through-holes (41), and the intercommunication has intake pipe (5) on casing (1) lateral wall of tray (4) below, and the top intercommunication of casing (1) has outlet duct (6), characterized by: tray (4) are along vertical direction sliding connection in casing (1), install on casing (1) and be used for driving tray (4) and do reciprocating motion drive arrangement (7), drive arrangement (7) are including installing driven gear (71) in casing (1) inner wall, mesh in driven gear (71) and along vertical direction sliding connection in rack (72) of casing (1), install in casing (1) and be used for driving driven gear (71) pivoted drive assembly (73), driven gear (71) axial fixity and circumferential direction connect in casing (1) inner wall, rack (72) length direction's one end is fixed with tray (4).

2. The high-efficiency boiler dedusting, desulfurizing and denitrifying device according to claim 1, which is characterized in that: the number of the trays (4) is two, the through holes (41) on the two trays (4) are arranged alternately, and the number of the driven gears (71) and the number of the racks (72) are also two.

3. The high-efficiency boiler dedusting, desulfurizing and denitrifying device according to claim 2, which is characterized in that: the driving assembly (73) comprises a driving gear (731) which is arranged on the shell (1) and is respectively meshed with the two driven gears (71), and a driving piece (732) which is arranged on the shell (1) and is used for driving the driving gear (731) to rotate, wherein the driving gear (731) is axially fixed and is connected to the shell (1) in a circumferential rotating mode, and the driving gear (731) is located between the two driven gears (71).

4. The high-efficiency boiler dedusting, desulfurizing and denitrifying device according to claim 3, which is characterized in that: the number of teeth of the driving gear (731) is larger than that of any one driven gear (71).

5. The high-efficiency boiler dedusting, desulfurizing and denitrifying device according to claim 3, which is characterized in that: the guide rod (8) is installed on the shell (1), the guide rod (8) penetrates through the two racks (72) in sequence along the vertical direction, and the two racks (72) are connected to the guide rod (8) in a sliding mode along the axial direction of the guide rod (8).

6. The high-efficiency boiler dedusting, desulfurizing and denitrifying device according to claim 1, which is characterized in that: the inner wall of the shell (1) is provided with a sliding groove (11), a sliding protrusion (43) is fixed on the tray (4), and the sliding protrusion (43) is embedded and is connected to the sliding groove (11) in a sliding mode along the vertical direction.

7. The high efficiency boiler dedusting, desulfurizing and denitrating apparatus as set forth in claim 6, characterized in that: and elastic pieces (9) are fixed on the groove bottoms at the two ends of the sliding groove (11) in the length direction.

8. The high-efficiency boiler dedusting, desulfurizing and denitrifying device according to claim 1, which is characterized in that: liquid storage cotton (42) is fixed on the tray (4), and the liquid storage cotton (42) is of a porous structure.