CN212881872U

CN212881872U - Low temperature SCR denitration catalyst ammonium sulfate cleaning device

Info

Publication number: CN212881872U
Application number: CN202021205656.4U
Authority: CN
Inventors: 李凯; 朱红太; 彭娟; 路丽蒙
Original assignee: Ma'anshan Fangxin Environmental Protection Technology Co ltd
Current assignee: Ma'anshan Fangxin Environmental Protection Technology Co ltd
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2021-04-06
Anticipated expiration: 2030-06-24

Abstract

The utility model discloses a low temperature SCR denitration catalyst ammonium sulfate cleaning device, including the import flue, import flue one end is seted up into the mouth, and flue gas heat exchanger is connected to import flue upper end, and flue gas heat exchanger connects former flue gas in the upper end, the upper end of flue is connected to former flue gas, carries the flue other end to connect denitration catalytic reaction way, denitration catalytic reaction says that the side is connected defeated ammonia installation, set up two-layer filter plate in the denitration catalytic reaction says, the lower extreme sets up cleaning device on the filter plate. The utility model discloses low temperature SCR denitration catalyst ammonium sulfate cleaning device breaks up the flue gas in the catalytic reaction way of denitration, makes the flue gas dispersion even, better and catalyst reaction, improves the clearance quality, and three group's clearance roller brushes can clear up the lower extreme simultaneously on two sets of filter plates, reduces the clearance cost, improves clearance speed, and the clearance roller brush is hung more totally of brush to the ammonium sulfate, increases cleaning efficiency.

Description

Low temperature SCR denitration catalyst ammonium sulfate cleaning device

Technical Field

The utility model relates to a denitration catalyst ammonium sulfate clearance technical field specifically is a low temperature SCR denitration catalyst ammonium sulfate cleaning device.

Background

Nitrogen oxides, based on nitric oxide and nitrogen dioxide, are a significant cause of photochemical smog and acid rain. Photochemical smog has a special odor, irritates the eyes, damages plants, and can reduce atmospheric visibility. Nitric acid and nitrous acid generated by the reaction of nitrogen oxides and water in the air are components of acid rain, the acid rain can not only cause harm to human bodies, but also even cause crop yield reduction and the like, and the nitrogen oxides in the atmosphere mainly originate from the combustion of fossil fuels. Along with the enhancement of national environmental protection dynamics, the emission standard requirement to steel industry flue gas is becoming stricter and more strict, and current steel industry flue gas purification mostly is SCR denitration, and low temperature SCR denitration catalyst reacts with flue gas and ammonia and reaches the effect of denitration, but at SCR denitration catalyst in the denitration reaction process, can form the thiamine crystallization, adheres to on the otter board, influences denitration efficiency and effect, and the clearance is inconvenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a low temperature SCR denitration catalyst ammonium sulfate cleaning device breaks up the flue gas in the catalytic reaction way of denitration, makes the flue gas dispersion even, better and catalyst reaction, improves the clearance quality, and three group's clearance roller brushes can clear up the lower extreme simultaneously on two sets of filter plates, reduce the clearance cost, improve cleaning speed, the clearance roller brush is more clean to ammonium sulfate string brush, increase cleaning efficiency, the problem among the prior art has been solved.

In order to achieve the above object, the utility model provides a following technical scheme: a low-temperature SCR denitration catalyst ammonium sulfate cleaning device comprises an inlet flue, wherein a flue inlet is formed in one end of the inlet flue, the upper end of the inlet flue is connected with a flue gas heat exchanger, the upper end of the flue gas heat exchanger is connected with a raw flue gas connecting flue, the upper end of the raw flue gas connecting flue is connected with a conveying flue, the other end of the conveying flue is connected with a denitration catalytic reaction channel, the side end above the denitration catalytic reaction channel is connected with an ammonia conveying device, two layers of filter plates are arranged in the denitration catalytic reaction channel, and a cleaning device is arranged at the upper end and;

the cleaning device comprises a motor, a cylinder, a connecting shaft device, a cleaning assembly and a spraying device, wherein the telescopic rod of the cylinder is connected with the cleaning assembly, the side end of the cleaning assembly is connected with the motor, the connecting shaft device is sleeved on the motor, the spraying device is arranged above the two layers of filter plates, a smoke-water mixing channel is connected below the denitration catalytic reaction channel, a smoke outlet is formed in the side end of the smoke-water mixing channel, and the lower end of the smoke-water mixing channel is connected with a sewage collecting box.

Preferably, the ammonia conveying device comprises an ammonia conveying pipe and an ammonia conveying port, the ammonia conveying port is arranged below the ammonia conveying pipe, and one end of the ammonia conveying pipe penetrates through the outer wall of the denitration catalytic reaction channel and is connected with the ammonia storage device.

Preferably, the shaft connecting device comprises a chain belt and a gear shaft, the gear shaft is sleeved on a cleaning assembly connected with the motor output rod, and the chain belt is sleeved on the outer side of the gear shaft.

Preferably, the cleaning assembly comprises a fixed plate, a movable shaft rod and a cleaning roller brush, the cleaning roller brush is sleeved on the movable shaft rod, the movable shaft rod and the cleaning roller brush are provided with three groups and are respectively installed on the fixed plate, and a motor output rod is connected with the middle movable shaft rod.

Preferably, the gear shafts are provided with three groups which are respectively fixed on the three groups of movable shaft rods, and the chain belt is sleeved on the three groups of gear shafts.

Preferably, the spraying device comprises a spray pipe and a spray head, the spray head is fixed below the spray pipe, and the spray pipe is externally connected with a hot water tank.

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

1. the utility model relates to a low temperature SCR denitration catalyst ammonium sulfate cleaning device, the exhaust port is seted up to the side that the cigarette water mixes the way, and sewage collecting box is connected to the low side that the cigarette water mixes the way, and the SCR catalyst is equipped with in the two-layer filter plate on the denitration catalytic reaction way for nitrogen oxide reacts in promotion ammonia and the flue gas, reaches the purpose of denitration, through setting up two-layer filter plate, breaks up the flue gas in the denitration catalytic reaction way, makes the flue gas dispersion even, better and catalyst reaction.

2. The utility model relates to a low temperature SCR denitration catalyst ammonium sulfate cleaning device, the chain belt cup joints on three gear shafts of group, sprinkler includes spray tube and shower nozzle, the shower nozzle is fixed below the spray tube, the spray tube is external to the hot-water tank, during the clearance, drive the cleaning roller brush through the cylinder is flexible and move on the filter plate, in the process of moving, the motor rotates, drive the rotation of movable axostylus axostyle, thereby drive the cleaning roller brush to rotate, the cleaning roller brush brushes and scrubs the filter plate rotationally, the cylinder is flexible back and forth, drive the cleaning roller brush to hang the brush back and forth, the motor corotation is reversed, make the cleaning roller brush transform the direction and scrub the filter plate diversely, improve the clearance quality, and three cleaning roller brushes can clean the upper and lower ends of two groups of filter plates simultaneously, reduce the clearance cost, improve the clearance speed, and when the clearance, the spray tube sprays hot water through the shower nozzle, under the effect of hot water, the cleaning roller, the cleaning efficiency is increased.

Drawings

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

FIG. 2 is a sectional view of the internal structure of the flue gas-water mixing channel of the present invention;

FIG. 3 is a schematic structural view of the cleaning device of the present invention;

FIG. 4 is a sectional view of the top view of the cleaning device of the present invention;

FIG. 5 is a sectional view of the side view of the cleaning device of the present invention;

fig. 6 is a schematic structural view of the spraying device of the present invention.

In the figure: 1. an inlet flue; 11. a smoke inlet; 2. a flue gas heat exchanger; 3. the raw flue gas is connected with a flue; 4. A conveying flue; 5. a denitration catalytic reaction channel; 51. filtering the plate; 6. an ammonia delivery device; 61. an ammonia conveying pipe; 62. An ammonia delivery port; 7. a cleaning device; 71. a motor; 72. a cylinder; 73. a shaft coupling device; 731. a chain belt; 732. a gear shaft; 74. cleaning the assembly; 741. a fixing plate; 742. a movable shaft lever; 743. cleaning the roller brush; 75. a spraying device; 751. a nozzle; 752. a spray head; 8. a smoke and water mixing channel; 81. a smoke outlet; 82. a sewage collecting box.

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.

Referring to fig. 1-2, a low-temperature SCR denitration catalyst ammonium sulfate cleaning device comprises an inlet flue 1, a flue inlet 11 is formed at one end of the inlet flue 1, a flue gas heat exchanger 2 is connected at the upper end of the inlet flue 1, a raw flue gas connecting flue 3 is connected at the upper end of the flue gas heat exchanger 2, a conveying flue 4 is connected at the upper end of the raw flue gas connecting flue 3, a denitration catalytic reaction channel 5 is connected at the other end of the conveying flue 4, an ammonia conveying device 6 is connected at the upper side end of the denitration catalytic reaction channel 5, the ammonia conveying device 6 comprises an ammonia conveying pipe 61 and an ammonia conveying port 62, the ammonia conveying pipe 61 is provided with the ammonia conveying port 62 at the lower part, one end of the ammonia conveying pipe 61 penetrates through the outer wall of the denitration catalytic reaction channel 5 and is connected with an ammonia storage device, two layers of filter plates 51 are arranged in the denitration catalytic reaction channel 5, a flue-water mixing channel 8 is connected at the lower part of the denitration catalytic reaction channel 5, SCR catalysts are arranged in the two layers of filter plates 51 on the denitration catalytic reaction channel 5 and used for promoting ammonia gas to react with nitrogen oxides in flue gas so as to achieve the aim of denitration, and the flue gas in the denitration catalytic reaction channel 5 is scattered by arranging the two layers of filter plates 51, so that the flue gas is uniformly dispersed and better reacts with the catalysts.

Referring to fig. 3-6, a cleaning device 7 is disposed at the upper and lower ends of the filter plates 51, the cleaning device 7 includes a motor 71, an air cylinder 72, a shaft connecting device 73, a cleaning assembly 74 and a spraying device 75, a telescopic rod of the air cylinder 72 is connected to the cleaning assembly 74, a side end of the cleaning assembly 74 is connected to the motor 71, the shaft connecting device 73 is sleeved on the motor 71, the spraying device 75 is disposed above the two layers of filter plates 51, the shaft connecting device 73 includes a chain belt 731 and a gear shaft 732, the gear shaft 732 is sleeved on the cleaning assembly 74 connected to an output rod of the motor 71, the chain belt 731 is sleeved outside the gear shaft 732, the cleaning assembly 74 includes a fixed plate 741, a movable shaft 742 and cleaning roller brushes 743, the cleaning roller brushes 743 are sleeved on the movable shaft 742, three sets of the movable shaft 742 and the cleaning roller brushes 743 are respectively disposed on the fixed plate 741, the output rods of the motor 71 are connected to the movable shaft 742 in the, the three cleaning roller brushes 743 are driven to move on the filter plate 51 by the expansion and contraction of the air cylinder 72 during cleaning, the motor 71 rotates in the moving process to drive the movable shaft lever 742 to rotate, so as to drive the cleaning roller brush 743 to rotate, the cleaning roller brush 743 brushes the filter plate 51 in a rotating and scrubbing mode, the air cylinder 72 expands and contracts back and forth to drive the cleaning roller brush 743 to hang the brush back and forth, the motor 71 rotates in the reverse direction, so that the cleaning roller brush 743 can change the direction to brush the filter plate 51 in multiple directions, the cleaning quality is improved, the three cleaning roller brushes 743 can clean the upper ends and the lower ends of the two groups of filter plates 51 simultaneously, the cleaning cost is reduced, the cleaning speed is improved, and the spray pipe 751 sprays hot water through the spray head 752 during cleaning, under the effect of hot water, the cleaning roller brush 743 can clean the ammonium sulfate hanging brush, and the cleaning efficiency is improved.

In summary, the following steps: the utility model discloses low temperature SCR denitration catalyst ammonium sulfate cleaning device, smoke and water mixing channel 8's side is seted up exhaust port 81, smoke and water mixing channel 8's low end is connected sewage collecting box 82, SCR catalyst is equipped with in the two-layer filter plate 51 on denitration catalytic reaction channel 5, be used for promoting ammonia and the reaction of nitrogen oxide in the flue gas, reach the mesh of denitration, through setting up two-layer filter plate 51, break up the flue gas in denitration catalytic reaction channel 5, make the flue gas disperse evenly, better react with catalyst, chain belt 731 cup joints on three group's gear shafts 732, sprinkler 75 includes spray tube 751 and shower nozzle 752, shower nozzle 752 is fixed below spray tube 751, spray tube 751 external hot water tank, during the clearance, through flexible clearance roller brush 743 that drives of cylinder 72 on filter plate 51 moves, in-process motor 71 that removes rotates, drive movable axostylus axostyle 742 rotates, thereby drive clearance roller brush 743 rotates, cleaning roller brush 743 rotates to scrub filter plate 51, cylinder 72 makes a round trip to stretch out and draw back, drive cleaning roller brush 743 and make a round trip to hang the brush, motor 71 corotation reversal, make cleaning roller brush 743 transform the direction and carry out diversified scrubbing to filter plate 51, improve the clearance quality, and three groups of cleaning roller brush 743 can be cleared up two sets of filter plate 51 upper and lower ends simultaneously, reduce the clearance cost, improve the clearance speed, and when the clearance, spray tube 751 sprays hot water through shower nozzle 752, under the hot water effect, cleaning roller brush 743 hangs the cleaner of brush to the thiamine, increase cleaning efficiency.

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

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

Claims

1. The utility model provides a low temperature SCR denitration catalyst ammonium sulfate cleaning device, includes import flue (1), its characterized in that: a smoke inlet (11) is formed in one end of an inlet flue (1) of the inlet flue (1), the upper end of the inlet flue (1) is connected with a flue gas heat exchanger (2), the upper end of the flue gas heat exchanger (2) is connected with an original flue gas connecting flue (3), the upper end of the original flue gas connecting flue (3) is connected with a conveying flue (4), the other end of the conveying flue (4) is connected with a denitration catalytic reaction channel (5), the upper side end of the denitration catalytic reaction channel (5) is connected with an ammonia conveying device (6), two layers of filter plates (51) are arranged in the denitration catalytic reaction channel (5), and cleaning devices (7) are arranged at the upper end and the lower end;

cleaning device (7) include motor (71), cylinder (72), even axle device (73), clearance subassembly (74) and sprinkler (75), clearance subassembly (74) are connected to the telescopic link of cylinder (72), and motor (71) are connected to the side of clearance subassembly (74), cup joint even axle device (73) on motor (71), and sprinkler (75) set up the top at two-layer filter plate (51), smoke and water mixed way (8) are connected to the below of denitration catalytic reaction way (5), and discharge port (81) are seted up to the side of smoke and water mixed way (8), and sewage collection box (82) are connected to the low end of smoke and water mixed way (8).

2. The device for cleaning ammonium sulfate as the low-temperature SCR denitration catalyst as recited in claim 1, wherein: defeated ammonia device (6) are including defeated ammonia pipe (61) and defeated ammonia mouth (62), and defeated ammonia pipe (61) below sets up defeated ammonia mouth (62), and defeated ammonia pipe (61) one end pierces through denitration catalytic reaction way (5) outer wall and is connected with the ammonia storage ware.

3. The device for cleaning ammonium sulfate as the low-temperature SCR denitration catalyst as recited in claim 1, wherein: the connecting shaft device (73) comprises a chain belt (731) and a gear shaft (732), the gear shaft (732) is sleeved on a cleaning assembly (74) connected with an output rod of the motor (71), and the outer side of the gear shaft (732) is sleeved with the chain belt (731).

4. The device for cleaning ammonium sulfate as the low-temperature SCR denitration catalyst as recited in claim 1, wherein: the cleaning assembly (74) comprises a fixing plate (741), a movable shaft rod (742) and cleaning roller brushes (743), the cleaning roller brushes (743) are sleeved on the movable shaft rod (742), the movable shaft rod (742) and the cleaning roller brushes (743) are provided with three groups and are respectively installed on the fixing plate (741), and output rods of the motor (71) are connected with the middle movable shaft rod (742).

5. The low-temperature SCR denitration catalyst ammonium sulfate cleaning device according to claim 3, characterized in that: the gear shafts (732) are provided with three groups and are respectively fixed on the three groups of movable shaft rods (742), and the chain belt (731) is sleeved on the three groups of gear shafts (732).

6. The device for cleaning ammonium sulfate as the low-temperature SCR denitration catalyst as recited in claim 1, wherein: the spraying device (75) comprises a spray pipe (751) and a spray head (752), wherein the spray head (752) is fixed below the spray pipe (751), and the spray pipe (751) is externally connected with a hot water tank.