Flue gas denitration device for glass melting furnace

Abstract

The utility model discloses a flue gas denitration device for a glass melting furnace, which is characterized in that a first treatment component is arranged at the upper ends of a first treatment cylinder and a second treatment cylinder, a part of a first treatment rod is arranged in the first treatment cylinder and the second treatment cylinder, and the second treatment component is matched with the first treatment component; when flue gas entering the glass melting furnace is pretreated, ammonia gas and the flue gas of the glass melting furnace are uniformly mixed and filtered for multiple times, the pretreated flue gas can be subjected to denitration treatment for multiple times, meanwhile, the denitrated flue gas can be detected, and if the detected content is high, the flue gas can be subjected to denitration treatment. And the denitrated flue gas is subjected to denitration treatment again, so that the denitration treatment effect of the flue gas of the glass melting furnace can be ensured, and subsequent other treatment can be more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas denitration, in particular to a flue gas denitration device for a glass melting furnace. Background Art

[0002] In the field of glass manufacturing technology, a large amount of flue gas containing nitrate is generated during the production process of the glass kiln. During the discharge process, it must be subjected to "denitrification" treatment to reduce the pollution of the flue gas to the atmosphere. In order to better ensure the denitrification effect of the flue gas in the glass melting furnace, a glass melting furnace flue gas denitrification device is needed.

[0003] The existing glass kiln flue gas denitrification device cannot mix the pretreated gas during denitrification pretreatment, resulting in a poor denitrification effect, that is, the ammonia and the flue gas cannot be evenly mixed, and during the denitrification treatment, only the pretreated flue gas can be circulated, resulting in incomplete denitrification. Utility Model Content

[0004] In view of the problems in the related technology, the utility model proposes a glass melting furnace flue gas denitrification device to overcome the above technical problems existing in the existing related technology.

[0005] To this end, the specific technical solutions adopted by the utility model are as follows:

[0006] A glass melting furnace flue gas denitrification device includes a first treatment tube and a second treatment tube, wherein a first treatment component is arranged at the upper end of the first treatment tube and the second treatment tube, an air inlet pipe and an exhaust pipe are connected to one end of the first treatment tube and the second treatment tube, a delivery pipe is connected between the first treatment tube and the second treatment tube, and a second treatment component is arranged on the air inlet pipe, the exhaust pipe and the delivery pipe.

[0007] Furthermore, in order to better ensure the denitrification effect of the flue gas of the glass melting furnace, the first processing component includes multiple first motors, and the first motor is arranged at one end of the first processing cylinder and the second processing cylinder through a mounting bracket. The output shaft of the first motor is provided with a driving gear, and the driving gear is meshed with a driven gear.

[0008] Furthermore, a hollow rod is provided on the driven gear, one end of the hollow rod extends from the outside of the first processing cylinder and the second processing cylinder to the inside of the first processing cylinder and the second processing cylinder, and one end of the hollow rod located inside the first processing cylinder and the second processing cylinder is connected to a plurality of processing rods, and the processing rods are communicated with the hollow rod.

[0009] Furthermore, multiple first filter processing nets are arranged inside the first processing cylinder and the second processing cylinder, and the first filter processing nets are located directly below the processing rod, multiple output holes are opened on the processing rod, a cleaning scraper is arranged on the processing rod, and the cleaning scraper is in contact with the first filter processing net, and a cleaning tube is connected to the first processing cylinder and the second processing cylinder.

[0010] Furthermore, the first processing component also includes a rotating joint, which is arranged at one end of the hollow rod, one end of the rotating joint is connected to an input pipe through a flange, one end of the input pipe is connected to a first quantitative delivery pump, the first quantitative delivery pump is arranged on the first processing cylinder and the second processing cylinder through a mounting frame, and the input end of the first quantitative delivery pump is connected to a feed pipe.

[0011] Furthermore, in order to better ensure the pretreatment effect of the flue gas of the glass melting furnace, the second processing component includes an auxiliary cylinder and a first conveying fan. The auxiliary cylinder is arranged on the air inlet pipe, and the auxiliary cylinder is provided with a second motor. The second motor and the output shaft of the second motor are provided with an adjusting rod through a coupling. One end of the adjusting rod extends from the outside of the auxiliary cylinder to the inside of the auxiliary cylinder. A plurality of cleaning blades are provided at one end of the adjusting rod located inside the auxiliary cylinder. A second filter processing net is provided at one end of the cleaning blade, and the second filter processing net is fixedly provided on the inner wall of the auxiliary cylinder.

[0012] Furthermore, a second metered delivery pump is arranged on the auxiliary cylinder through a fixed frame, the input end of the second metered delivery pump is connected to an air storage box, the output end of the second metered delivery pump is connected to a shunt pipe, one end of the shunt pipe extends from the outside of the auxiliary cylinder to the inside of the auxiliary cylinder, the shunt pipe is located inside the auxiliary cylinder and is connected to a spray pipe, a plurality of spray ports are opened on the spray pipe, and a plurality of material guide output hoppers are arranged on the auxiliary cylinder.

[0013] Furthermore, the second processing component also includes a second conveying fan and a third conveying fan. The second conveying fan and the third conveying fan are arranged on the conveying pipe and the exhaust pipe. The third conveying fan is connected to a detection tube, and the exhaust pipe is connected to a return pipe. The return pipe and the exhaust pipe are provided with a first control valve and a second control valve, and one end of the return pipe is connected to the first processing cylinder.

[0014] The beneficial effects of the utility model are as follows: through the cooperation between the second processing component and the first processing component, the ammonia gas and the glass melting furnace flue gas can be evenly mixed during the pretreatment of the incoming glass melting furnace flue gas, and multiple filtering treatments can be performed, and the pretreated flue gas can also be subjected to multiple denitrification treatments, and the denitrification flue gas can also be tested at the same time. If the detected content is still high, the denitrification flue gas can be subjected to denitrification treatment again, thereby ensuring the denitrification treatment effect of the glass melting furnace flue gas, and making it more convenient to carry out other subsequent treatments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a schematic diagram of the structure of a glass melting furnace flue gas denitrification device according to an embodiment of the utility model Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the structure of a glass melting furnace flue gas denitrification device according to an embodiment of the utility model Figure 2 ;

[0018] Figure 3 This is a schematic diagram of the structure of a glass melting furnace flue gas denitrification device according to an embodiment of the utility model Figure 3 ;

[0019] Figure 4 It is a structural schematic diagram of a first processing component of a glass melting furnace flue gas denitrification device according to an embodiment of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the second treatment component of a glass melting furnace flue gas denitrification device according to an embodiment of the utility model Figure 1 ;

[0021] Figure 6 This is a schematic diagram of the structure of the second treatment component of a glass melting furnace flue gas denitrification device according to an embodiment of the utility model Figure 2 ;

[0022] Figure 7 This is a schematic diagram of the structure of the second treatment component of a glass melting furnace flue gas denitrification device according to an embodiment of the utility model Figure 3 ;

[0023] Figure 8 This is a schematic diagram of the structure of the second treatment component of a glass melting furnace flue gas denitrification device according to an embodiment of the utility model Figure 4 ;

[0024] Fig. 9 This is a schematic diagram of the structure of the second treatment component of a glass melting furnace flue gas denitrification device according to an embodiment of the utility model Figure 5 .

[0025] Reference numerals:

[0026] 1. First treatment cylinder; 2. Second treatment cylinder; 3. First treatment assembly; 301. First motor; 302. Driving gear; 303. Driven gear; 304. Hollow rod; 305. Treatment rod; 306. First filter treatment net; 307. Rotary joint; 308. Input pipe; 309. First quantitative delivery pump; 310. Feed pipe; 4. Inlet pipe; 5. Exhaust pipe; 6. Delivery pipe; 7. Second treatment assembly; 701. Auxiliary cylinder; 702. First delivery fan; 703. 03, second motor; 704, adjustment rod; 705, cleaning blade; 706, second filter processing net; 707, second quantitative delivery pump; 708, air storage box; 709, diverter pipe; 710, spray pipe; 711, second delivery fan; 712, third delivery fan; 713, detection pipe; 714, return pipe; 8, output hole; 9, cleaning scraper; 10, cleaning pipe; 11, spray port; 12, material guide output hopper; 13, first control valve; 14, second control valve. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1 - Fig. 9 As shown, a glass melting furnace flue gas denitrification device according to an embodiment of the utility model includes a first treatment tube 1 and a second treatment tube 2. A first treatment component 3 is arranged at one end of the first treatment tube 1 and the second treatment tube 2 for denitrifying the glass melting furnace flue gas. An air inlet pipe 4 and an exhaust pipe 5 are connected to one end of the first treatment tube 1 and the second treatment tube 2. The air inlet pipe 4 is connected to the glass melting furnace, and the exhaust pipe 5 is connected to the next treatment process. A delivery pipe 6 is connected between the first treatment tube 1 and the second treatment tube 2. A second treatment component 7 is arranged on the air inlet pipe 4, the exhaust pipe 5 and the delivery pipe 6 for pre-treating the incoming glass melting furnace flue gas.

[0029] like Figure 1 - Fig. 9As shown, the first processing assembly 3 includes two first motors 301, and the first motor 301 is arranged at one end of the first processing cylinder 1 and the second processing cylinder 2 through a mounting bracket. The output shaft of the first motor 301 is provided with a driving gear 302, and the driving gear 302 is meshed with a driven gear 303, and the driven gear 303 is provided with a hollow rod 304, one end of the hollow rod 304 extends from the outside of the first processing cylinder 1 and the second processing cylinder 2 to the inside of the first processing cylinder 1 and the second processing cylinder 2, and one end of the hollow rod 304 located inside the first processing cylinder 1 and the second processing cylinder 2 is connected to a plurality of processing rods 305, and the processing rods 305 are connected to the hollow rod 304, and a plurality of first filtering processing nets 306 are arranged inside the first processing cylinder 1 and the second processing cylinder 2, and the first filtering processing nets 30 6 is located directly below the treatment rod 305, and a plurality of output holes 8 are provided on the treatment rod 305. A cleaning scraper 9 is provided on the treatment rod 305, and the cleaning scraper 9 is in contact with the first filter treatment net 306. The first treatment cylinder 1 and the second treatment cylinder 2 are connected with a cleaning pipe 10; the first treatment component 3 also includes a rotary joint 307, and the rotary joint 307 is provided at one end of the hollow rod 304. One end of the rotary joint 307 is connected to an input pipe 308 through a flange. The input pipe 308 is connected to an external storage box, and a catalytic reducing agent is provided in the storage box. One end of the input pipe 308 is connected to a first quantitative delivery pump 309, and the first quantitative delivery pump 309 is provided on the first treatment cylinder 1 and the second treatment cylinder 2 through a mounting frame. The input end of the first quantitative delivery pump 309 is connected to a feed pipe 310. Figure 1 - Fig. 9 As shown, the second processing assembly 7 includes an auxiliary cylinder 701 and a first conveying fan 702. The auxiliary cylinder 701 is arranged on the air inlet pipe 4. The auxiliary cylinder 701 is provided with a cooling device when actually used, which is used to cool down the incoming glass melting furnace smoke. The auxiliary cylinder 701 is provided with a second motor 703. The second motor 703 and the output shaft of the second motor 703 are provided with an adjusting rod 704 through a coupling. One end of the adjusting rod 704 extends from the outside of the auxiliary cylinder 701 to the inside of the auxiliary cylinder 701. One end of the adjusting rod 704 located inside the auxiliary cylinder 701 is provided with a plurality of cleaning blades 705. One end of the cleaning blade 705 is provided with a A second filtering net 706 is provided, and the second filtering net 706 is fixedly arranged on the inner wall of the auxiliary cylinder 701. A second quantitative delivery pump 707 is arranged on the auxiliary cylinder 701 through a fixing frame. The input end of the second quantitative delivery pump 707 is connected to an air storage box 708. The output end of the second quantitative delivery pump 707 is connected to a shunt pipe 709. One end of the shunt pipe 709 extends from the outside of the auxiliary cylinder 701 to the inside of the auxiliary cylinder 701. The shunt pipe 709 is located inside the auxiliary cylinder 701 and is connected to a spray pipe 710. A plurality of spray ports 11 are provided on the spray pipe 710. Two material guide output hoppers 12 are provided on the auxiliary cylinder 701.

[0030] The second processing component 7 also includes a second conveying fan 711 and a third conveying fan 712. The second conveying fan 711 and the third conveying fan 712 are arranged on the conveying pipe 6 and the exhaust pipe 5. The third conveying fan 712 is connected to a detection tube 713. One end of the detection tube 713 is connected to an infrared flue gas analyzer with model JH-90. A return pipe 714 is connected to the exhaust pipe 5. The return pipe 714 and the exhaust pipe 5 are provided with a first control valve 13 and a second control valve 14. One end of the return pipe 714 is connected to the first processing cylinder 1.

[0031] When it is necessary to transport the flue gas, the first transport fan 702, the second transport fan 711 and the third transport fan 712 are used to transport the flue gas through an external controller; when the flue gas enters the auxiliary cylinder 701, the second motor 703 is started through an external controller, and then the output shaft of the second motor 703 drives the adjusting rod 704 to rotate, and then drives the cleaning blade 705 to rotate, and during the rotation process, the second quantitative delivery pump 707 generates suction to transport the treated gas in the gas storage box 708 to the shunt pipe 709, and then the gas is mixed with the incoming flue gas through the cleaning blade 705 through the spray port 11 on the spray pipe 710, and then the particulate matter in the flue gas is filtered for multiple times through the second filter processing net 706, and then it is transported into the first processing cylinder 1 through the first transport fan 702, and the impurities cleaned on the second filter processing net 706 can be output by setting the material guide output hopper 12, so as to ensure the filtering effect;

[0032] The flue gas that has been pre-treated is transported to the first treatment tube 1 and then the first motor 301 is started through an external controller. Then the output shaft of the first motor 301 drives the driving gear 302 to rotate. Then the driving gear 302 drives the hollow rod 304 to rotate by meshing with the driven gear 303, thereby driving the treatment rod 305 to rotate. When the treatment rod 305 rotates, the first quantitative delivery pump 309 is started through an external controller. Then the first quantitative delivery pump 309 generates suction to transport the catalytic reducing agent in the external storage box to the input pipe 308, and then allows it to enter the hollow rod 304, and then output through the output hole 8, so as to reduce the nitrate in the flue gas filtered by each first filter treatment net 306. By setting a cleaning scraper 9, The first filtering net 306 is cleaned, and the cleaned impurities or catalytic reduction materials can be collected by setting a cleaning pipe 10, and then the treated flue gas is transported to the second treatment tube 2 through the second conveying fan 711 and the conveying pipe 6 for a second nitration treatment. The flue gas that has undergone two denitration treatments is transported to the exhaust pipe 5 through the third conveying fan 712, and the first control valve 13 and the second control valve 14 are closed by an external controller, and then the content of the denitration treated flue gas is detected by an infrared flue gas analyzer connected to the outside through the detection tube 713. When the content is still high, the second control valve 14 is opened, and then the flue gas enters the reflux pipe 714, and then enters the first treatment tube 1 for another denitration treatment.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A glass melting furnace flue gas denitrification device, comprising a first treatment tube (1) and a second treatment tube (2), characterized in that: A first processing assembly (3) is arranged at the upper end of the first processing cylinder (1) and the second processing cylinder (2); an air inlet pipe (4) and an exhaust pipe (5) are connected to one end of the first processing cylinder (1) and the second processing cylinder (2); a delivery pipe (6) is connected between the first processing cylinder (1) and the second processing cylinder (2); and a second processing assembly (7) is arranged on the air inlet pipe (4), the exhaust pipe (5) and the delivery pipe (6).

2. A glass melting furnace flue gas denitrification device according to claim 1, characterized in that: The first processing assembly (3) comprises a plurality of first motors (301), wherein the first motors (301) are arranged at one end of the first processing cylinder (1) and the second processing cylinder (2) via a mounting bracket, and an output shaft of the first motor (301) is provided with a driving gear (302), and a driven gear (303) is meshedly connected to the driving gear (302).

3. A glass melting furnace flue gas denitrification device according to claim 2, characterized in that: A hollow rod (304) is provided on the driven gear (303), and one end of the hollow rod (304) extends from the outside of the first processing cylinder (1) and the second processing cylinder (2) to the inside of the first processing cylinder (1) and the second processing cylinder (2), and one end of the hollow rod (304) located inside the first processing cylinder (1) and the second processing cylinder (2) is connected to a plurality of processing rods (305), and the processing rods (305) are communicated with the hollow rod (304).

4. A glass melting furnace flue gas denitrification device according to claim 3, characterized in that: A plurality of first filtering processing nets (306) are arranged inside the first processing cylinder (1) and the second processing cylinder (2), and the first filtering processing nets (306) are located directly below the processing rod (305). A plurality of output holes (8) are provided on the processing rod (305), and a cleaning scraper (9) is arranged on the processing rod (305), and the cleaning scraper (9) is in contact with the first filtering processing net (306). A cleaning pipe (10) is connected to the first processing cylinder (1) and the second processing cylinder (2).

5. A glass melting furnace flue gas denitrification device according to claim 3, characterized in that: The first processing component (3) also includes a rotating joint (307), which is arranged at one end of the hollow rod (304), and one end of the rotating joint (307) is connected to an input pipe (308) through a flange, and one end of the input pipe (308) is connected to a first quantitative delivery pump (309), and the first quantitative delivery pump (309) is arranged on the first processing cylinder (1) and the second processing cylinder (2) through a mounting frame, and the input end of the first quantitative delivery pump (309) is connected to a feed pipe (310).

6. A glass melting furnace flue gas denitrification device according to claim 5, characterized in that: The second processing assembly (7) comprises an auxiliary cylinder (701) and a first conveying fan (702); the auxiliary cylinder (701) is arranged on the air inlet pipe (4); the auxiliary cylinder (701) is provided with a second motor (703); the second motor (703); the output shaft of the second motor (703) is provided with an adjusting rod (704) through a coupling; one end of the adjusting rod (704) extends from the outside of the auxiliary cylinder (701) to the inside of the auxiliary cylinder (701); a plurality of cleaning blades (705) are provided at one end of the adjusting rod (704) located inside the auxiliary cylinder (701); a second filtering processing net (706) is provided at one end of the cleaning blade (705); and the second filtering processing net (706) is fixedly provided on the inner wall of the auxiliary cylinder (701).

7. A glass melting furnace flue gas denitrification device according to claim 6, characterized in that: A second quantitative delivery pump (707) is arranged on the auxiliary cylinder (701) via a fixed frame, the input end of the second quantitative delivery pump (707) is connected to an air storage box (708), the output end of the second quantitative delivery pump (707) is connected to a shunt pipe (709), one end of the shunt pipe (709) extends from the outside of the auxiliary cylinder (701) to the inside of the auxiliary cylinder (701), the shunt pipe (709) is located inside the auxiliary cylinder (701) and is connected to a spray pipe (710), a plurality of spray ports (11) are provided on the spray pipe (710), and a plurality of material guide output hoppers (12) are provided on the auxiliary cylinder (701).

8. A glass melting furnace flue gas denitrification device according to claim 7, characterized in that: The second processing component (7) also includes a second conveying fan (711) and a third conveying fan (712), the second conveying fan (711) and the third conveying fan (712) are arranged on the conveying pipe (6) and the exhaust pipe (5), the third conveying fan (712) is connected to a detection tube (713), the exhaust pipe (5) is connected to a return pipe (714), the return pipe (714) and the exhaust pipe (5) are provided with a first control valve (13) and a second control valve (14), and one end of the return pipe (714) is connected to the first processing cylinder (1).

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