CN210645350U - Flue gas desulfurization and denitrification system - Google Patents

Abstract

The utility model relates to a thermoelectricity field specifically is a flue gas SOx/NOx control system, including the SOx/NOx control tower body of installing the tray, SOx/NOx control tower body includes the casing, tray axial fixity and circumferential direction connect in the casing, install on the casing and be used for driving tray pivoted drive assembly, still install the washing unit who is used for washing the tray on the casing, washing unit is including installing in the casing and along the inlet tube that casing width direction set up, install in the suction pump of inlet tube, communicate in a plurality of branch pipes that inlet tube and export orientation tray set up, the installation just is used for the dispersion mechanism with the liquid dispersion of branch pipe outflow with the casing. The tray is cleaned regularly, so that the blocking rate of the tray is reduced, and the effect of improving the desulfurization is achieved.

Description

Flue gas desulfurization and denitrification system

Technical Field

The utility model relates to a thermoelectricity field, concretely relates to flue gas desulfurization deNOx systems.

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 acid mist waste gas generally gets into the SOx/NOx control tower along the horizontal direction, therefore acid mist waste gas gets into the SOx/NOx control tower after, the acid mist exhaust flow rate that is close to tower mouth department is lower, it is higher to keep away from the acid mist exhaust flow rate that enters tower mouth department, make acid mist exhaust flow rate distribute unevenly on the SOx/NOx control tower cross-section, cause the bias flow phenomenon of acid mist waste gas, form a vortex region, SOx/NOx control tower cross-section is very big simultaneously, the acid mist waste gas flow rate distributes unevenly in the SOx/NOx control tower, this kind of uneven distribution leads to desulfurization and dust collection efficiency to reduce.

In order to let the acid mist waste gas that gets into in the SOx/NOx control tower can the even flow, the current more general way is to let the acid mist waste gas get into the SOx/NOx control tower with decurrent angle of attack to spray the layer and go into and set up the tray that opens and have a plurality of through-holes between the tower mouth 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

The utility model aims to provide a flue gas desulfurization and denitrification system, which improves the desulfurization efficiency by reducing the blockage of through holes.

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

the utility model provides a flue gas desulfurization and denitrification system, including the SOx/NOx control tower body of installing the tray, SOx/NOx control tower body includes the casing, tray axial fixity and circumferential direction connect in the casing, install on the casing and be used for driving tray pivoted drive assembly, still install the washing unit who is used for washing the tray on the casing, washing unit is including installing in the casing and along the inlet tube that casing width direction set up, install in the suction pump of inlet tube, communicate in a plurality of branch pipes that inlet tube and export orientation tray set up, installation and casing just are used for the dispersion mechanism with the liquid dispersion of branch pipe outflow.

By adopting the technical scheme, the desulfurization and denitrification tower needs to be cleaned regularly after being used for a period of time. The cleaning process is that the driving assembly drives the tray to rotate 180 degrees, so that the front surface and the back surface of the tray are reversed. The cleaning liquid is pumped into the water inlet pipe by the water pump and flows out from the branch pipes. The dispersing mechanism can disperse the cleaning liquid flowing out from the branch pipe to make the cleaning liquid flow to the through hole on the tray. The impact of the dispersed liquid on the tray causes the plug to break away from the through-hole while being stopped on the through-hole. Thus, the cleaning work of the tray is completed. After cleaning, the driving assembly drives the tray to rotate 180 degrees, so that the tray is restored to the initial position. Therefore, the tray is cleaned regularly, so that the blocking rate of the tray is reduced, and the desulfurization effect is improved.

The utility model discloses a further set up to: the dispersing mechanism comprises an installation rod, a plurality of dispersion discs and a power assembly, wherein the installation rod is installed on the shell and is parallel to the water inlet pipe, the plurality of dispersion discs are installed on the installation rod, the power assembly is used for driving the plurality of dispersion discs to rotate, the dispersion discs are axially fixed and are circumferentially rotated to be connected to the installation rod, and the plurality of dispersion discs are respectively located below the plurality of branch pipes.

Through adopting above-mentioned technical scheme, power component drive dispersion impeller rotates, and the liquid that flows from the branch pipe flows to the dispersion impeller on. The liquid falling on the dispersion plate splashes to the circumferential direction of the dispersion plate under the action of tangential force generated by high-speed operation of the dispersion plate. Thus, the liquid dispersion function is achieved.

The utility model discloses a further set up to: the power assembly comprises a plurality of gears coaxially arranged on the dispersion disc, a rack meshed with the gears and axially and slidably connected to the shell along the mounting rod, and a power part used for driving the rack to reciprocate.

By adopting the technical scheme, the power part drives the rack to axially move along the mounting rod and then rotates with the gear meshed with the rack. Because the rack does reciprocating motion, the gear does positive direction rotation. Thus, the dispersion disc which is coaxially arranged with the gear rotates forwards and reversely.

The utility model discloses a further set up to: the both ends of rack length direction are fixed with the slide bar, and the slide bar is along installation pole axial sliding connection in casing, and the casing is worn out to the one end that the rack was kept away from to the slide bar, and the slide bar is worn out one of casing and is served and be fixed with the stopper.

By adopting the technical scheme, the sliding rod fixed with the rack is axially and slidably connected to the shell along the mounting rod, so that the rack can axially move along the mounting rod. Because the end of the sliding rod, which penetrates out of the shell, is fixed with the limiting block, the sliding rod can not move forward any more after the limiting block on which the sliding rod moves abuts against the side wall of the shell. The limiting block plays a role in preventing the sliding rod from separating from the shell.

The utility model discloses a further set up to: the power part comprises a movable frame fixed at one end of the sliding rod penetrating through the shell, a rotating roller arranged on the shell and extending into the movable frame, and an actuating part for driving the rotating roller to rotate, the movable frame is axially and slidably connected to the shell along the mounting rod, a plurality of first gear teeth are fixed on two opposite sides of the movable frame, second gear teeth meshed with the first gear teeth are fixed on the side wall of the rotating roller, and when the rotating roller rotates in the forward direction, the second gear teeth are only meshed with the first gear teeth on one side of the movable frame; when the rotating roller rotates reversely, the second gear teeth are only engaged with the first gear teeth on the other side of the moving frame.

Through adopting above-mentioned technical scheme, after driving the piece drive live-rollers forward and rotate, be fixed in the second teeth of a cogwheel on the live-rollers and remove the first teeth of a cogwheel meshing of one of them limit of frame for remove the frame and remove on the casing along the installation pole axial. When the rotating roller rotates in the reverse direction, the second gear teeth are engaged with the first gear teeth of the other side of the moving frame, so that the moving frame moves in the housing in the reverse direction along the axial direction of the mounting rod. One end of the movable frame is fixed with the rack, so that the rack does reciprocating motion along the axial direction of the mounting rod.

The utility model discloses a further set up to: the fixed plate is fixed on the side wall of the shell, the sliding groove is formed in the fixed plate, the sliding protrusion is fixed on the movable frame, and the sliding protrusion is embedded and axially and slidably connected to the sliding groove along the mounting rod.

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 moving frame fixed to the sliding protrusion is stably moved.

The utility model discloses a further set up to: the SOx/NOx control tower body still installs filter equipment including connecting in the drain pipe of casing lower extreme on the drain pipe, and filter equipment includes that embedded and can dismantle the filter bag of connecting in the drain pipe.

Through adopting above-mentioned technical scheme, the solid impurity that is washed down by washing unit is held back on the filter bag. And after the washing is finished, taking down the filter bag, and cleaning impurities on the filter bag.

The utility model discloses a further set up to: the drain pipe includes the first pipeline of being connected with the casing lower extreme, the diameter slightly is greater than first pipeline and the embedded second pipeline that has the filter bag that has, and first pipeline and second pipeline pass through the clamp and link together.

Through adopting above-mentioned technical scheme, when dismantling the filter bag, unscrew the clamp on first pipeline and the second pipeline for first pipeline and second pipeline break away from, take off the filter bag from the second pipeline again.

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

1. the tray is cleaned regularly, so that the blocking rate of the tray is reduced, and the effect of improving the desulfurization is achieved;

2. the solid impurities washed down by the flushing device are trapped on the filter bag. And after the washing is finished, taking down the filter bag, and cleaning impurities on the filter bag.

Drawings

Fig. 1 is a cross-sectional view of the present invention;

fig. 2 is a longitudinal sectional view of the present invention;

fig. 3 is a schematic diagram of the power assembly of the present invention.

Reference numerals: 1. a desulfurization and denitrification tower body; 11. a tray; 12. a housing; 121. a fixing plate; 122. a sliding groove; 2. a drive assembly; 3. a flushing device; 31. a water inlet pipe; 32. a water pump; 33. a branch pipe; 34. a dispersing mechanism; 341. mounting a rod; 342. a dispersion tray; 4. a power assembly; 41. a gear; 42. a rack; 43. a power member; 431. moving the frame; 4311. a first gear tooth; 4312. a sliding projection; 432. a rotating roller; 4321. a second gear tooth; 433. an actuating member; 44. a slide bar; 45. a limiting block; 5. a liquid outlet pipe; 51. a first conduit; 52. a second conduit; 6. a filtration device; 61. a filter bag; 7. and (5) clamping a hoop.

Detailed Description

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

As shown in fig. 1, a flue gas desulfurization and denitrification system, including the desulfurization and denitrification tower body 1 who installs tray 11, desulfurization and denitrification tower body 1 includes casing 12, and tray 11 axial fixity and circumferential direction connect in casing 12, install on casing 12 to be used for driving tray 11 pivoted drive assembly 2, still install the washing unit 3 who is used for washing tray 11 on casing 12.

After the desulfurization and denitrification tower is used for a period of time, the desulfurization and denitrification tower needs to be cleaned regularly. The cleaning process is that the driving assembly 2 drives the tray 11 to rotate 180 degrees, so that the front and back of the tray 11 are reversed. The flushing device 3 flushes the tray 11.

Referring to fig. 2 and 3, the flushing device 3 includes a water inlet pipe 31 installed in the housing 12 and arranged along the width direction of the housing 12, a water pump 32 installed in the water inlet pipe 31, a plurality of branch pipes 33 communicated with the water inlet pipe 31 and arranged with their outlets facing the tray 11, and a dispersing mechanism 34 installed in the housing 12 and used for dispersing the liquid flowing out from the branch pipes 33. The dispersing mechanism 34 includes a mounting rod 341 mounted on the housing 12 and parallel to the water inlet pipe 31, a plurality of dispersing disks 342 mounted on the mounting rod 341, and a power assembly 4 for driving the plurality of dispersing disks 342 to rotate, the dispersing disks 342 are axially fixed and circumferentially rotatably connected to the mounting rod 341, and the plurality of dispersing disks 342 are respectively located below the plurality of branch pipes 33. The power assembly 4 comprises a plurality of gears 41 coaxially mounted on the dispersion disc 342, a rack 42 engaged with the plurality of gears 41 and axially slidably connected to the housing 12 along the mounting rod 341, and a power member 43 for driving the rack 42 to reciprocate.

Sliding rods 44 are fixed at two ends of the rack 42 in the length direction, the sliding rods 44 are connected to the housing 12 in a sliding manner along the axial direction of the mounting rod 341, one end of each sliding rod 44, which is far away from the rack 42, penetrates through the housing 12, and a limiting block 45 is fixed at one end of each sliding rod 44, which penetrates through the housing 12. The power member 43 comprises a moving frame 431 fixed at one end of the sliding rod 44 penetrating out of the housing 12, a rotating roller 432 installed on the housing 12 and extending into the moving frame 431, and an actuating member 433 for driving the rotating roller 432 to rotate, wherein the moving frame 431 is axially and slidably connected to the housing 12 along the installation rod 341, a plurality of first gear teeth 4311 are fixed on two opposite sides of the moving frame 431, a second gear tooth 4321 meshed with the first gear teeth 4311 is fixed on the side wall of the rotating roller 432, and when the rotating roller 432 rotates positively, the second gear tooth 4321 is meshed with the first gear tooth 4311 on only one side of the moving frame 431; when the rotating roller 432 rotates reversely, the second gear 4321 is engaged with only the first gear 4311 of the other side of the moving frame 431. A fixing plate 121 is fixed on the side wall of the housing 12, a sliding groove 122 is formed in the fixing plate 121, a sliding protrusion 4312 is fixed on the movable frame 431, and the sliding protrusion 4312 is embedded and is axially and slidably connected to the sliding groove 122 along the mounting rod 341.

When the actuating member 433 drives the rotating roller 432 to rotate in the forward direction, the second gear 4321 fixed to the rotating roller 432 is engaged with the first gear 4311 of one side of the moving frame 431, so that the moving frame 431 moves on the housing 12 along the axial direction of the installation rod 341. When the rotating roller 432 is rotated reversely, the second gear 4321 is engaged with the first gear 4311 of the other side of the moving frame 431, so that the moving frame 431 is moved in the opposite direction on the housing 12 in the axial direction of the installation rod 341. Since one end of the moving frame 431 is fixed to the rack 42, the rack 42 reciprocates in the axial direction of the installation rod 341. The gear 41 engaged with the rack 42 rotates. Since the rack 42 reciprocates, the gear 41 rotates in the forward direction. Thus, the dispersion disc 342 mounted coaxially with the gear 41 rotates in forward and reverse directions. The liquid flowing from branch pipe 33 flows onto dispersion plate 342. The liquid falling on the dispersion plate 342 is splashed toward the circumferential direction of the dispersion plate 342 by the tangential force generated by the high-speed operation of the dispersion plate 342. Thus, the liquid dispersion function is achieved.

As shown in fig. 1, the desulfurization and denitrification tower body 1 further comprises a liquid outlet pipe 5 connected to the lower end of the casing 12, a filtering device 6 is installed on the liquid outlet pipe 5, and the filtering device 6 comprises a filter bag 61 embedded and detachably connected to the liquid outlet pipe 5. The liquid outlet pipe 5 comprises a first pipe 51 connected with the lower end of the shell 12, and a second pipe 52 with a diameter slightly larger than that of the first pipe 51 and embedded with a filter bag 61, wherein the first pipe 51 and the second pipe 52 are connected together through a clamp 7. The upper end of the filter bag 61 is turned out of the second pipeline 52, and the upper end of the filter bag 61 is connected with the second pipeline 52 through a binding belt or a hoop.

The solid impurities washed down by the washing device 3 are trapped on the filter bag 61. After the washing is finished, the filter bag 61 is taken down, and impurities on the filter bag 61 are cleaned. When the filter bag 61 is detached, the clamp 7 on the first pipe 51 and the second pipe 52 is loosened, so that the first pipe 51 and the second pipe 52 are separated, and the filter bag 61 is removed from the second pipe 52. The surfaces of the parts in the shell 12 are coated with corrosion-resistant films or are made of corrosion-resistant materials, so that the device can work in acid-base environments for a long time.

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 (8)

1. The utility model provides a flue gas SOx/NOx control system, is including installing SOx/NOx control tower body (1) of tray (11), characterized by: desulfurization and denitrification tower body (1) includes casing (12), tray (11) axial fixity and circumferential direction connect in casing (12), install on casing (12) and be used for driving tray (11) pivoted drive assembly (2), still install washing unit (3) that are used for washing tray (11) on casing (12), washing unit (3) are including installing inlet tube (31) that set up in casing (12) and along casing (12) width direction, install suction pump (32) in inlet tube (31), communicate in inlet tube (31) and export a plurality of branch pipes (33) that set up towards tray (11), install in casing (12) and be used for dispersion mechanism (34) with the liquid dispersion of branch pipe (33) outflow.

2. The flue gas desulfurization and denitrification system according to claim 1, wherein: the dispersing mechanism (34) comprises an installation rod (341) which is installed on the shell (12) and is parallel to the water inlet pipe (31), a plurality of dispersion discs (342) which are installed on the installation rod (341), and a power assembly (4) which is used for driving the plurality of dispersion discs (342) to rotate, wherein the dispersion discs (342) are axially fixed and are connected to the installation rod (341) in a circumferential rotating mode, and the plurality of dispersion discs (342) are located below the plurality of branch pipes (33) respectively.

3. The flue gas desulfurization and denitrification system according to claim 2, wherein: the power assembly (4) comprises a plurality of gears (41) coaxially arranged on the dispersion disc (342), a rack (42) meshed with the plurality of gears (41) and connected to the shell (12) in a sliding mode along the axial direction of the mounting rod (341), and a power piece (43) used for driving the rack (42) to reciprocate.

4. The flue gas desulfurization and denitrification system according to claim 3, wherein: sliding rods (44) are fixed at two ends of the rack (42) in the length direction, the sliding rods (44) are axially connected to the shell (12) in a sliding mode along the installation rod (341), one end, far away from the rack (42), of each sliding rod (44) penetrates out of the shell (12), and a limiting block (45) is fixed at one end, penetrating out of the shell (12), of each sliding rod (44).

5. The flue gas desulfurization and denitrification system according to claim 4, wherein: the power part (43) comprises a moving frame (431) fixed at one end of a sliding rod (44) penetrating out of the shell (12), a rotating roller (432) installed on the shell (12) and extending into the moving frame (431), and an actuating part (433) used for driving the rotating roller (432) to rotate, wherein the moving frame (431) is axially connected to the shell (12) in a sliding manner along the installation rod (341), a plurality of first gear teeth (4311) are fixed on two opposite sides of the moving frame (431), a second gear tooth (4321) meshed with the first gear teeth (4311) is fixed on the side wall of the rotating roller (432), and when the rotating roller (432) rotates forwards, the second gear tooth (4321) is only meshed with the first gear tooth (4311) on one side of the moving frame (431); when the rotating roller (432) rotates in the reverse direction, the second gear (4321) is engaged with only the first gear (4311) of the other side of the moving frame (431).

6. The flue gas desulfurization and denitrification system according to claim 5, wherein: the side wall of the shell (12) is fixed with a fixed plate (121), the fixed plate (121) is provided with a sliding groove (122), the movable frame (431) is fixed with a sliding protrusion (4312), and the sliding protrusion (4312) is embedded and is axially and slidably connected with the sliding groove (122) along the installation rod (341).

7. The flue gas desulfurization and denitrification system according to claim 1, wherein: desulfurization and denitrification tower body (1) is still including connecting in drain pipe (5) of casing (12) lower extreme, installs filter equipment (6) on drain pipe (5), and filter equipment (6) are including embedded just can dismantle filter bag (61) of connecting in drain pipe (5).

8. The flue gas desulfurization and denitrification system according to claim 7, wherein: the drain pipe (5) comprises a first pipeline (51) connected with the lower end of the shell (12) and a second pipeline (52) with the diameter slightly larger than that of the first pipeline (51) and embedded with a filter bag (61), and the first pipeline (51) and the second pipeline (52) are connected together through a hoop (7).

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