阅读说明：本技术 脱硝催化剂再生系统 (Denitration catalyst regeneration system ) 是由 胡浩毅 缪正英 徐小明 黄海军 于 2018-09-12 设计创作，主要内容包括：本发明涉及废水处理领域,公开了一种脱硝催化剂再生系统,包括吹灰装置、水洗装置、酸洗装置和再生焙烧装置,还包括废气处理装置,所述酸洗装置包括若干清洗池,清洗池的上端开设有若干抽气孔,所述废气处理装置包括除气管、引风机和喷淋塔；所述除气管设有多根分别与抽气孔相连,所述引风机连有输气管,所述输气管一端与除气管相连,另一端与喷淋塔相连。氨气与三氧化硫等刺激性气体通过抽气孔被排风机吸出,刺激性气体通过输气管进入喷淋塔中,喷淋塔对气体进行喷淋过滤,刺激性气体溶于水中,洁净的空气排出,大气和环境得到保护。(The invention relates to the field of wastewater treatment, and discloses a denitration catalyst regeneration system which comprises a soot blowing device, a washing device, a pickling device, a regeneration roasting device and a waste gas treatment device, wherein the pickling device comprises a plurality of cleaning pools, a plurality of air suction holes are formed in the upper ends of the cleaning pools, and the waste gas treatment device comprises an air removing pipe, an induced draft fan and a spray tower; the gas removal pipe is equipped with many and links to each other with the aspirating hole respectively, the draught fan even has the gas-supply pipe, gas-supply pipe one end links to each other with the gas removal pipe, and the other end links to each other with the spray column. The irritant gases such as ammonia gas and sulfur trioxide are sucked out by the exhaust fan through the air exhaust holes, the irritant gases enter the spray tower through the gas conveying pipe, the spray tower sprays and filters the gases, the irritant gases are dissolved in water, clean air is discharged, and the atmosphere and the environment are protected.)

1. The utility model provides a denitration catalyst regeneration system, includes soot blower (1), water washing device (2), acid dip pickle (3) and regeneration roasting device (5), its characterized in that: the device is characterized by also comprising a waste gas treatment device (4), wherein the pickling device (3) comprises a plurality of cleaning pools (31), a plurality of air suction holes (311) are formed in the upper ends of the cleaning pools (31), and the waste gas treatment device (4) comprises a degassing pipe (41), an induced draft fan (42) and a spray tower (43); remove trachea (41) and be equipped with many and link to each other with aspirating hole (311) respectively, draught fan (42) even have gas-supply pipe (44), gas-supply pipe (44) one end links to each other with removing trachea (41), and the other end links to each other with spray column (43).

2. The denitration catalyst regeneration system according to claim 1, characterized in that: the degassing pipe (41) comprises a main pipe (411) and a plurality of branch pipes (412), one end of each branch pipe (412) is connected with the suction hole (311), the other end of each branch pipe is connected with the main pipe (411), and the end part of the main pipe (411) is connected with the gas conveying pipe (44).

3. The denitration catalyst regeneration system according to claim 2, characterized in that: the degassing pipe (41) further comprises a quadrangular frustum pyramid-shaped pipe joint (45), and the pipe joint (45) is arranged between the branch pipe (412) and the air suction hole (311).

4. The denitration catalyst regeneration system according to claim 1, characterized in that: be equipped with sealed lid (32) on washing pond (31), the lower surface of sealed lid (32) is equipped with a plurality of drainage grooves (321), drainage groove (321) circumference distributes, the directional center of sealed lid (32) of drainage groove (321) one end, the directional aspirating hole (311) of the other end.

5. The denitration catalyst regeneration system according to claim 4, characterized in that: the center department of sealed lid (32) rotates and is connected with axis of rotation (33), the lower extreme of axis of rotation (33) is equipped with rotation fan blade (34), the upper end of axis of rotation (33) is passed sealed lid (32) and is connected with rotation motor (35).

6. The denitration catalyst regeneration system according to claim 4, characterized in that: the periphery of the lower surface of the sealing cover (32) is provided with a sealing edge (322) extending downwards, a sealing layer (323) is fixed on the inner wall of the sealing edge (322), and the outer wall of the upper end of the cleaning pool (31) is abutted against the sealing layer (323).

7. The denitration catalyst regeneration system according to claim 6, characterized in that: vertical control hole (312) have been seted up to four angles departments of wasing pond (31), the internal rotation of control hole (312) is connected with screw cylinder (361), screw cylinder (361) internal thread connection has ejector pin (362), wear to be equipped with control lever (371) that the level set up in wasing pond (31), link to each other through worm gear (372) between control lever (371) and screw cylinder (361).

8. The denitration catalyst regeneration system according to claim 7, characterized in that: the cleaning device is characterized in that two control rods (371) which are parallel to each other are arranged in the cleaning pool (31), one control rod (371) is connected with two threaded cylinders (361), a transmission rod (373) is connected between the two control rods (371), the transmission rod (373) is connected with the control rods (371) through a bevel gear set (374), and the end portions of the transmission rod (373) extend out of the cleaning pool (31) and are connected with a rotating handle (375).

9. The denitration catalyst regeneration system according to claim 4, characterized in that: the air pressure balance hole (324) is formed in the sealing cover (32), a sealing barrel (381) with an upper end opened is connected in the air pressure balance hole (324) in a sliding mode, a fixing edge (382) is fixed to the upper end of the sealing barrel (381), a balance spring (383) is arranged between the fixing edge (382) and the sealing cover (32), and a balance opening (384) communicated with the inner cavity of the sealing barrel (381) is formed in the outer wall of the sealing barrel (381).

Technical Field

The invention relates to the field of wastewater treatment, and particularly relates to a denitration catalyst regeneration system.

Background

Because coal-fired power plants can produce a large amount of nitrogen oxides (NOx) when burning coal, the NOx is also a main cause of environmental problems such as acid rain, regional haze, photochemical smog and the like which are generally accepted at present. At present, a Selective Catalytic Reduction (SCR) denitration technology is mainly adopted in a coal-fired power plant to control the emission of NOx, wherein the core of the whole denitration reactor is an SCR catalyst.

Chinese patent with publication number CN108097045A discloses a method for regenerating and recycling a denitration catalyst, which comprises the steps of blowing soot; step two, washing with water; step three, acid washing: step four, primary drying; step five, active implantation; step six, secondary drying; step seven, activity detection; and step eight, packaging treatment. The method improves the cycle efficiency of the regeneration and cyclic utilization of the whole denitration catalyst.

The catalyst module can decompose and release irritant gases such as ammonia gas, sulfur trioxide and the like in the acid washing process, so that the atmosphere is polluted, and the environmental protection property is poor.

Disclosure of Invention

The invention aims to provide a denitration catalyst regeneration system which has the advantages of protecting atmosphere and improving environmental protection.

The technical purpose of the invention is realized by the following technical scheme:

a denitration catalyst regeneration system comprises a soot blowing device, a washing device, a pickling device, a regeneration roasting device and a waste gas treatment device, wherein the pickling device comprises a plurality of cleaning pools, a plurality of air suction holes are formed in the upper ends of the cleaning pools, and the waste gas treatment device comprises a degassing pipe, an induced draft fan and a spray tower; the gas removal pipe is equipped with many and links to each other with the aspirating hole respectively, the draught fan even has the gas-supply pipe, gas-supply pipe one end links to each other with the gas removal pipe, and the other end links to each other with the spray column.

Through adopting above-mentioned technical scheme, catalyst module puts into the cleaning tank in, it washs catalyst module to wash the pond, catalyst module can decompose the release ammonia in the cleaning process, pungent gas such as sulfur trioxide, this part of gas tympanic bulla come-up in the cleaning process, when reacing the upper end of wasing the pond, the exhaust fan passes through the gas-supply pipe and applys suction to the gas removal pipe, pungent gas such as ammonia and sulfur trioxide is sucked by the exhaust fan through the aspirating hole, pungent gas gets into the spray column through the gas-supply pipe in, the spray column sprays the filtration to gas, pungent gas dissolves in the aquatic, clean air is discharged, atmosphere and environment obtain the protection.

Further, the degassing pipe includes trunk line and a plurality of spinal branch pipelines, spinal branch pipeline one end links to each other with the aspirating hole, and the other end links to each other with the trunk line, the tip of trunk line links to each other with the gas-supply pipe.

Through adopting above-mentioned technical scheme, the gas in the cleaning pool gets into the branch pipe through near aspirating hole respectively, is discharged by the air pump after the confluence in the trunk line, and a plurality of branch pipes absorb the gas in the cleaning pool, and the absorption effect is better.

Furthermore, the degassing pipe also comprises a pipeline joint in the shape of a quadrangular frustum pyramid, and the pipeline joint is arranged between the branch pipeline and the air suction hole.

By adopting the technical scheme, the branch pipeline is connected with the air exhaust hole through the pipeline joint, and the pipeline joint can effectively communicate the branch pipeline with the air exhaust hole; the pipeline joint is set to be a quadrangular frustum pyramid shape, so that gas can conveniently flow into the branch pipeline along the inclined inner wall of the pipeline joint.

Further, be equipped with sealed lid on the washing pond, the lower surface of sealed lid is equipped with a plurality of drainage grooves, drainage groove circumference distributes, the directional center of sealed lid of drainage groove one end, the directional aspirating hole of the other end.

Through adopting above-mentioned technical scheme, catalyst module is when wasing, and sealed lid is on wasing the pond, guarantees to wash the leakproofness in pond, prevents that waste gas from leaking. When the waste gas floats to the sealing cover, the drainage grooves guide the waste gas into the air exhaust holes to be exhausted, and the exhaust effect is good.

Furthermore, the center department of sealed lid rotates and is connected with the axis of rotation, the lower extreme of axis of rotation is equipped with the rotation flabellum, the upper end of axis of rotation passes sealed lid and is connected with the rotation motor.

Through adopting above-mentioned technical scheme, sealed lid rotates the motor start on wasing the pond, rotates the flabellum and rotates, washs and forms the vortex in the pond, and the gas in the washing pond is in the centrifugal force that rotates the flabellum down to diffusion entering exhaust hole all around for the gas flow in the washing pond improves exhaust efficiency.

Further, the periphery of the lower surface of the sealing cover is provided with a sealing edge extending downwards, a sealing layer is fixed on the inner wall of the sealing edge, and the outer wall of the upper end of the cleaning pool is abutted to the sealing layer.

Through adopting above-mentioned technical scheme, sealed lid is on wasing the pond, and the upper end of wasing the pond inlays in the lower extreme of sealed lid, and the sealing layer is contradicted with the outer wall of wasing the pond, and the leakproofness between reinforcing sealed lid and the washing pond improves sealed effect.

Furthermore, vertical control holes are formed in four corners of the cleaning pool, a threaded cylinder is connected in the control holes in a rotating mode, an ejector rod is connected to the threaded cylinder in an internal thread mode, a control rod horizontally arranged is arranged in the cleaning pool in a penetrating mode, and the control rod is connected with the threaded cylinder through a worm and gear.

Through adopting above-mentioned technical scheme, sealed lid is located back on the washing pond, and the rotation control pole, the control lever drive a screw thread section of thick bamboo and rotate, and a screw thread section of thick bamboo makes the ejector pin stretch out a screw thread section of thick bamboo through the screw thread, and the ejector pin exerts ascending pressure to sealed lid, with sealed jack-up to make sealed lid break away from with the washing pond, the taking off of the sealed lid of being convenient for.

Furthermore, two control rods which are parallel to each other are arranged in the cleaning pool, one control rod is connected with the two threaded cylinders, a transmission rod is connected between the two control rods, the transmission rod is connected with the control rods through a bevel gear set, and the end part of the transmission rod extends out of the cleaning pool and is connected with a rotating handle.

Through adopting above-mentioned technical scheme, rotate the handle and rotate, the transfer line rotates, and the transfer line drives two control levers and rotates, and two control levers drive four screw thread section of thick bamboos and rotate to make four ejector pins ejecting simultaneously, convenient to use.

Furthermore, an air pressure balance hole is formed in the sealing cover, a sealing barrel with an upper end opening is connected in the air pressure balance hole in a sliding mode, a fixing edge is fixed to the upper end of the sealing barrel, a balance spring is arranged between the fixing edge and the sealing cover, and a balance opening communicated with the inner cavity of the sealing barrel is formed in the outer wall of the sealing barrel.

Through adopting above-mentioned technical scheme, the gas in the cleaning pool is constantly discharged, and the atmospheric pressure in the cleaning pool constantly reduces, and outside atmospheric pressure overcomes balance spring's elasticity and presses dynamic seal section of thick bamboo decline, is linked together until balanced mouthful and the inner chamber that washs the pond, and outside gas carries out the atmospheric pressure balance through balanced mouthful entering cleaning pool in, the opening of the sealed lid of being convenient for.

In conclusion, the invention has the following beneficial effects:

1. through the arrangement of the waste gas treatment device, irritant gases such as ammonia gas, sulfur trioxide and the like released in the cleaning process of the catalyst module enter the spray tower through the gas transmission pipe, the spray tower sprays and filters the gases, the irritant gases are dissolved in water, clean air is discharged, and the atmosphere and the environment are protected;

2. through the setting of sealed lid, sealed lid seals the washing pond, prevents that irritant gases from effluvizing, pollutes the atmosphere.

Drawings

FIG. 1 is a schematic structural view of an embodiment;

FIG. 2 is a schematic structural diagram of a soot blower in an embodiment;

FIG. 3 is a schematic structural view of a water washing apparatus in an embodiment;

FIG. 4 is a schematic view showing the connection between the pickling section and the exhaust gas treatment section in the embodiment;

FIG. 5 is a schematic view showing the structure of a cleaning tank in the embodiment;

FIG. 6 is a schematic structural view of a sealing cap in the embodiment;

FIG. 7 is a schematic structural view of a pressure equalizing hole in the embodiment;

FIG. 8 is a schematic view showing the connection of the threaded cylinder to the ejector pin in the embodiment;

fig. 9 is a schematic structural view of the opening device in the embodiment.

In the figure, 1, a soot blower; 11. a box body; 12. an air inlet pipeline; 13. a dust exhaust pipeline; 14. a support; 15. a back-flushing sprayer; 2. a water washing device; 21. a spray rack; 22. a frame; 23. a tray; 24. a spray head; 3. a pickling device; 31. a cleaning tank; 311. an air exhaust hole; 312. a control hole; 313. positioning blocks; 32. a sealing cover; 321. a drainage groove; 322. a sealing edge; 323. a sealing layer; 324. an air pressure balancing hole; 33. a rotating shaft; 34. rotating the fan blades; 35. rotating the motor; 361. a threaded barrel; 362. a top rod; 363. positioning a groove; 371. a control lever; 372. a worm gear; 373. a transmission rod; 374. a bevel gear set; 375. rotating the handle; 381. a sealing cylinder; 382. a fixing edge; 383. a balance spring; 384. a balancing port; 4. an exhaust gas treatment device; 41. removing an air pipe; 411. a main pipeline; 412. branch pipelines; 42. an induced draft fan; 43. a spray tower; 44. a gas delivery pipe; 45. a pipe joint; 5. and regenerating the roasting device.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.