Cement kiln flue gas treatment device

Abstract

The utility model relates to the technical field of cement kiln flue gas treatment, in particular to a cement kiln flue gas treatment device which comprises a main body, the side face of the main body is fixedly connected with an SCR denitration catalysis assembly and a dust removal and desulfurization assembly, and the bottom of the main body is provided with a collection assembly. According to the utility model, the flue gas of the cement kiln is treated under the joint cooperation of the SCR denitration catalytic module and the catalyst in the urea ammonia catalyst bin, so that not only is the defect caused by a single SCR denitration technology made up, but also NOx can be degraded to a very low emission standard by the urea ammonia catalyst, the emission standard of pollutants is ensured, and the environmental pollution is reduced. The SCR denitration catalyst is long in service life and has good heat resistance and acid and alkali resistance, energy is saved, the SCR denitration catalyst can purify waste gas and convert pollutants such as NOx into harmless substances, and the purpose of environment-friendly purification is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of cement kiln fume treatment, in particular to a cement kiln fume treatment device. Background Art

[0002] The production of cement involves a high-temperature calcination stage, which requires the combustion of a large amount of fossil fuels to provide energy and also emits a large amount of harmful gases.

[0003] Authorization announcement number CN213193159U discloses a cement kiln flue gas treatment device. This patented technology adopts three combined dust removal processes of settling chamber, electrostatic precipitator and bag dust removal. The dust emission concentration is low, meeting the national ultra-clean emission requirements, reducing the wear of the catalyst, and at the same time, the catalyst plugging failure is low. The life of the catalyst is as long as 5 years, reducing the country's hazardous waste treatment volume, and resources can be used most effectively; however, when treating the cement kiln flue gas in this scheme, a settling chamber, electrostatic precipitator and bag dust removal as well as a large-scale treatment device are used, the cost investment is too large, which is not conducive to sustainable development, and for smoke separation, although the smoke is purified, the solid matter is not effectively collected, thereby reducing the practicality of the cement kiln flue gas treatment device when in use. Therefore, a cement kiln flue gas treatment device is needed to improve the above problems. Utility Model Content

[0004] In order to solve the problem that when treating the cement kiln flue gas in this scheme, a settling chamber, electrostatic dust collector, bag dust collector and a large-scale treatment device are used, the cost investment is too high, which is not conducive to sustainable development, and for smoke separation, although the flue gas is purified, the solid matter is not effectively collected, thereby reducing the practicability of the cement kiln flue gas treatment device when in use, the purpose of the utility model is to provide a cement kiln flue gas treatment device to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A cement kiln flue gas treatment device comprises a main body, a SCR denitration catalytic component and a dust removal and desulfurization component are fixedly connected to the side of the main body, and a collecting component is arranged at the bottom of the main body;

[0007] The SCR denitration catalytic assembly comprises a smoke inlet pipe, the bottom of which is fixedly connected to a urea ammonia catalyst bin, the side of which is fixedly connected to a fastening plate, the side of which is fixedly connected to an SCR denitration catalytic module, and the side of which is fixedly connected to a delivery pipe;

[0008] The dust removal and desulfurization assembly includes a dust removal bin, a transport pipe is fixedly connected to the side of the dust removal bin, a desulfurization module is fixedly connected to the bottom of the transport pipe, an induced draft fan is fixedly connected to the side of the transport pipe, a smoke exhaust pipe is fixedly connected to the side of the induced draft fan, and a rain cap is fixedly connected to the top of the smoke exhaust pipe.

[0009] As a preferred solution of the utility model, the collection assembly includes a collection box, and a push handle is provided on the side of the collection box, and the push handle is made of metal iron.

[0010] As a preferred solution of the utility model, the bottom of the collection box is provided with moving wheels, and the number of the moving wheels is four.

[0011] As a preferred solution of the utility model, the main body includes a purification chamber, a pneumatic triplet is fixedly connected to the side of the purification chamber, and an electrical box and a control box are fixedly connected to the side of the purification chamber.

[0012] As a preferred solution of the utility model, a chamber door is fixedly connected to the side of the purification chamber, and a handle is fixedly connected to the side of the chamber door.

[0013] As a preferred solution of the utility model, an alarm light is fixedly connected to the side of the purification chamber, and a support rod is fixedly connected to the bottom of the purification chamber, and four support rods are provided.

[0014] As a preferred solution of the utility model, a guard plate is fixedly connected to the side of the support rod, and four guard plates are provided.

[0015] As a preferred solution of the utility model, a foot pad is fixedly connected to the bottom of the support rod, and four foot pads are provided.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. In the utility model, the cement kiln flue gas is treated by using the SCR denitration catalytic module and the catalyst inside the urea ammonia catalyst bin, which not only makes up for the disadvantages of the single SCR denitration technology, but also the urea ammonia catalyst can degrade NOx to a very low emission standard, ensuring the emission standard of pollutants. The SCR denitration catalyst has a long service life, good heat resistance and acid and alkali resistance, and saves energy. The SCR denitration catalyst can purify the exhaust gas and convert pollutants such as NOx into harmless substances, achieving the purpose of environmental protection purification.

[0018] 2. In the utility model, the dust removal bin is used to store and collect the solids into the collection box, thereby avoiding the problem that the filter bags are easily damaged and fall off, and the old bags are difficult to be effectively recycled. Single collection is conducive to the collection and reuse of solids, and maintenance and upgrading are of great significance to protecting the environment, improving industrial production efficiency, and saving energy and reducing emissions. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the SCR denitration catalytic component of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the dust removal and desulfurization component of the utility model;

[0022] Figure 4 It is a schematic diagram of the structure of the collection component of the utility model.

[0023] In the figure: 1. Main body; 101. Purification chamber; 102. Pneumatic triplex; 103. Electric box; 104. Control box; 105. Chamber door; 106. Handle; 107. Warning light; 108. Guard plate; 109. Support rod; 110. Foot pad; 2. SCR denitration catalytic component; 201. Smoke inlet pipe; 202. Fastening plate; 203. SCR denitration catalytic module; 204. Transport pipe; 205. Urea ammonia catalyst chamber; 3. Dust removal and desulfurization component; 301. Dust removal chamber; 302. Transport pipe; 303. Desulfurization module; 304. Draft fan; 305. Smoke exhaust pipe; 306. Rain cap; 4. Collection component; 401. Collection box; 402. Moving wheel; 403. Push handle. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] For examples, see Figure 1-Figure 4 , the utility model provides a technical solution:

[0026] A cement kiln flue gas treatment device comprises a main body 1, a SCR denitration catalytic component 2 and a dust removal and desulfurization component 3 are fixedly connected to the side of the main body 1, and a collecting component 4 is arranged at the bottom of the main body 1.

[0027] In this embodiment, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the SCR denitration catalytic component 2 includes a smoke inlet pipe 201, the bottom of the smoke inlet pipe 201 is fixedly connected to a urea ammonia catalyst bin 205, the side of the smoke inlet pipe 201 is fixedly connected to a fastening plate 202, the side of the fastening plate 202 is fixedly connected to an SCR denitration catalytic module 203, the side of the SCR denitration catalytic module 203 is fixedly connected to a conveying pipe 204, the dust removal and desulfurization component 3 includes a dust removal bin 301, the side of the dust removal bin 301 is fixedly connected to a conveying pipe 302, the bottom of the conveying pipe 302 is fixedly connected to a desulfurization module 303, the side of the conveying pipe 302 is fixedly connected to an induced draft fan 304, and the side of the induced draft fan 304 is fixedly connected to an exhaust fan 304. The smoke pipe 305, the top of the smoke exhaust pipe 305 is fixedly connected with a rain cap 306, and the SCR denitration catalytic module 203 and the catalyst inside the urea ammonia catalyst bin 205 cooperate to treat the cement kiln flue gas, which not only makes up for the disadvantages of the single SCR denitration technology, but also the urea ammonia catalyst can degrade NOx to a very low emission standard, ensuring the emission standard of pollutants. The SCR denitration catalyst has a long service life, good heat resistance and acid and alkali resistance, and saves energy. The SCR denitration catalyst can purify the exhaust gas and convert pollutants such as NOx into harmless substances, thereby achieving the purpose of environmental protection purification.

[0028] Among them, the collecting component 4 includes a collecting box 401, a push handle 403 is arranged on the side of the collecting box 401, the push handle 403 is made of metal iron, a moving wheel 402 is arranged at the bottom of the collecting box 401, and the moving wheel 402 is arranged in four. The dust removal bin 301 is used to store and collect the solids into the collecting box 401, thereby avoiding the problem that the filter bags are easily damaged and fall off, and the old bags are difficult to be effectively recycled. Single collection is conducive to the collection and reuse of solids, and maintenance and upgrading are of great significance to protecting the environment, improving industrial production efficiency, and saving energy and reducing emissions.

[0029] In this embodiment, Figure 1 and Figure 4As shown, the main body 1 includes a purification chamber 101, a pneumatic triplet 102 is fixedly connected to the side of the purification chamber 101, an electric box 103 and a control box 104 are fixedly connected to the side of the purification chamber 101, a chamber door 105 is fixedly connected to the side of the chamber door 105, a handle 106 is fixedly connected to the side of the purification chamber 101, an alarm light 107 is fixedly connected to the side of the purification chamber 101, a support rod 109 is fixedly connected to the bottom of the purification chamber 101, four support rods 109 are provided, a guard plate 108 is fixedly connected to the side of the support rod 109, four guard plates 108 are provided, a foot pad 110 is fixedly connected to the bottom of the support rod 109, four foot pads 110 are provided, and the guard plate 108, the support rod 109 and the foot pad 110 can further stabilize the cement kiln flue gas treatment equipment under the joint action of the guard plate 108, the support rod 109 and the foot pad 110.

[0030] Working process of the utility model: When the cement kiln flue gas treatment device designed by the present invention is in operation, smoke enters from the smoke inlet pipe 201, and is treated by the SCR denitration catalytic module 203 and the catalyst inside the urea ammonia catalyst bin 205. The treated smoke enters the dust removal bin 301 inside the purification bin 101 for dust removal, and the dust removed is fixed into the collection box 401. The collection box 401 can be moved by pushing the moving wheel 402 with the push handle 403, so as to move it to a suitable position, and the dust-removed gas enters the desulfurization module 303 from the transport pipe 302 for desulfurization. The clean gas after desulfurization is extracted by the induced draft fan 304 and discharged from the smoke exhaust pipe 305.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cement kiln flue gas treatment device, comprising a main body (1), characterized in that: The side of the main body (1) is fixedly connected with an SCR denitration catalytic component (2) and a dust removal and desulfurization component (3), and the bottom of the main body (1) is provided with a collection component (4); The SCR denitration catalytic component (2) comprises a smoke inlet pipe (201), the bottom of the smoke inlet pipe (201) is fixedly connected to a urea ammonia catalyst bin (205), the side of the smoke inlet pipe (201) is fixedly connected to a fastening plate (202), the side of the fastening plate (202) is fixedly connected to an SCR denitration catalytic module (203), and the side of the SCR denitration catalytic module (203) is fixedly connected to a delivery pipe (204); The dust removal and desulfurization component (3) comprises a dust removal bin (301), a transport pipe (302) is fixedly connected to the side of the dust removal bin (301), a desulfurization module (303) is fixedly connected to the bottom of the transport pipe (302), an induced draft fan (304) is fixedly connected to the side of the transport pipe (302), a smoke exhaust pipe (305) is fixedly connected to the side of the induced draft fan (304), and a rain cap (306) is fixedly connected to the top of the smoke exhaust pipe (305).

2. A cement kiln flue gas treatment device according to claim 1, characterized in that: The collecting assembly (4) comprises a collecting box (401), a push handle (403) is arranged on the side of the collecting box (401), and the material of the push handle (403) is metal iron.

3. A cement kiln flue gas treatment device according to claim 2, characterized in that: The bottom of the collection box (401) is provided with moving wheels (402), and four moving wheels (402) are provided.

4. The cement kiln flue gas treatment device according to claim 1, characterized in that: The main body (1) comprises a purification chamber (101), a pneumatic triplet (102) is fixedly connected to the side of the purification chamber (101), and an electrical box (103) and a control box (104) are fixedly connected to the side of the purification chamber (101).

5. A cement kiln fume treatment device according to claim 4, characterized in that: A chamber door (105) is fixedly connected to the side of the purification chamber (101), and a handle (106) is fixedly connected to the side of the chamber door (105).

6. A cement kiln fume treatment device according to claim 4, characterized in that: An alarm light (107) is fixedly connected to the side of the purification chamber (101), and a support rod (109) is fixedly connected to the bottom of the purification chamber (101), and four support rods (109) are provided.

7. A cement kiln fume treatment device according to claim 6, characterized in that: A guard plate (108) is fixedly connected to the side surface of the support rod (109), and four guard plates (108) are provided.

8. The cement kiln fume treatment device according to claim 6, characterized in that: A foot pad (110) is fixedly connected to the bottom of the support rod (109), and four foot pads (110) are provided.

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