CN210832036U

CN210832036U - Volatile organic compound heating cracking device

Info

Publication number: CN210832036U
Application number: CN201921717084.5U
Authority: CN
Inventors: 陈跃雄
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-14
Filing date: 2019-10-14
Publication date: 2020-06-23
Anticipated expiration: 2029-10-14

Abstract

The utility model discloses a volatile organic compounds heating cracking device, which comprises a structure main body, wherein the structure main body comprises a hearth, one end of the hearth is provided with a burner interface, the burner interface is connected and provided with a burner, the top of the hearth is provided with an exhaust port, the exhaust port is connected and provided with an exhaust pipe, the lower end of the exhaust pipe is connected and provided with a lower smoke chamber, the lower smoke chamber is provided with an air preheater and a chimney, the air preheater is provided with a smoke return pipe and a driving motor, and the smoke return pipe is connected with the burner; the volatile organic compound heating cracking device of the utility model extracts partial low-temperature flue gas from the tail part of the device through the arrangement of the smoke return pipe and the air preheater, returns the flue gas to the combustor for combustion supporting through the smoke return pipe, achieves the purposes of reducing the combustion temperature, reducing the combination of nitrogen and oxygen in the air and realizing the purpose of reducing the emission of oxynitride; the air preheater can preheat organic steam to improve the temperature and save energy consumption, and can also provide a part of low-temperature flue gas for the smoke return pipe, thereby realizing the aim of reducing the emission of nitrogen oxides.

Description

Volatile organic compound heating cracking device

Technical Field

The utility model belongs to the technical field of the pyrolysis apparatus, specifically be volatile organic compounds heating cracking device.

Background

Volatile Organic Compounds (VOCs) are important precursors for causing urban dust haze and photochemical smog, mainly come from the processes of coal chemical industry, petrochemical industry, fuel coating manufacturing, solvent manufacturing and using and the like, have uncomfortable special smell, and have toxicity, irritation, teratogenicity and carcinogenic effects, and especially benzene, toluene, formaldehyde and the like cause great harm to human health. With the rapid development of industrialization and urbanization in China and the continuous increase of energy consumption, the regional composite air pollution characterized by PM2.5 sum is increasingly prominent, the frequency of the phenomenon of heavy air pollution in the region is increased in a large range, the sustainable development of social economy is seriously restricted, and the health of people is threatened. There are many types of volatile organic pollutants, and the common classification is based on the nature of the pollution source, and mainly includes the following: organic solution, building material, interior decoration material, fiber material, office supplies, outdoor industrial gas and animal harmless treatment waste steam.

At present, the treatment of volatile waste gas VOCs at home and abroad mainly comprises an active carbon adsorption method, a liquid absorption method, a condensation method, a photocatalytic oxidation method, a biological decomposition method, a plasma purification method and a thermal oxidation method. However, the existing oxidation devices for waste gas concentration systems (RC runners) and thermal storage oxidation furnaces (RTO-RCO) systems in the market for treating volatile waste gas VOCs at home and abroad have certain disadvantages, and cannot effectively treat high-temperature high-humidity waste steam containing ammonia gas, hydrogen sulfide and other low-concentration waste gases. Chemical agents such as 98% high-concentration sulfuric acid and sodium hydroxide are required to be added in the process of treating the volatile waste gases (VOCs) by using a liquid absorption method, the purification rate of the volatile waste gases is only 60% -80%, the consumption of the absorbent is high, the liquid absorbing harmful gases is treated as hazardous waste, otherwise, secondary pollution is caused to the environment, and the treatment cost of the hazardous waste is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a volatile organic compounds pyrolysis device for solving the above problems.

The utility model discloses a following technical scheme realizes above-mentioned purpose, volatile organic compounds pyrolysis device, including a main structure body, the main structure body includes furnace, furnace one end is equipped with the combustor interface, the connection is equipped with the combustor on the combustor interface, the furnace top is equipped with the exhaust port, the connection is equipped with the exhaust pipe on the exhaust port, the connection of exhaust pipe lower extreme is equipped with down the smoke chamber, the smoke chamber is equipped with air heater and chimney down, be equipped with smoke return pipe and driving motor on the air heater, smoke return pipe way with the combustor is connected.

Preferably, furnace one end is equipped with nitrogen gas fire extinguishing port, nitrogen gas fire extinguishing port with the combustor is in same one end of furnace, the furnace other end is equipped with furnace export smoke temperature and detects mouth, furnace pressure detection mouth, maintenance hole and flame viewing aperture.

Preferably, an organic steam inlet and an organic steam outlet are arranged on the hearth.

Preferably, a heat conduction oil inlet and a heat conduction oil outlet are formed in the hearth.

Preferably, the hearth is of a horizontal columnar structure.

The utility model has the advantages that: through the arrangement of the smoke return pipe, part of low-temperature smoke is extracted from the tail part of the device and returns to the combustor through the smoke return pipe for combustion supporting, so that the purposes of reducing the combustion temperature, reducing the combination of nitrogen and oxygen in air and reducing the emission of nitrogen oxides are achieved; through the arrangement of the air preheater, the air preheater can preheat organic steam to improve the temperature and save energy consumption, and can also provide a part of low-temperature flue gas for the smoke return pipe, thereby realizing the aim of reducing the emission of nitrogen oxides; the heating cracking device does not need to use chemical agents such as sulfuric acid, sodium hydroxide and deodorant in the cracking process, does not produce waste gas and waste water, and does not cause secondary pollution to the environment.

Drawings

FIG. 1 is a schematic view of the structure of the furnace chamber of the present invention;

FIG. 2 is a schematic view of the structure of the furnace and the lower smoke chamber of the present invention;

FIG. 3 is a top view of the furnace and the lower smoke chamber of the present invention;

FIG. 4 is a top view of the furnace chamber of the present invention;

reference numbers in the figures: 1. a hearth; 2. a burner interface; 3. nitrogen fire extinguishing port; 4. an organic vapor outlet; 5. an organic vapor inlet; 6. a smoke outlet; 7. a hearth pressure detection port; 8. a repair hole; 9. a flame viewing port; 10. a heat conducting oil inlet; 11. a heat conducting oil outlet; 12. a furnace outlet smoke temperature detection port; 13. a burner; 14. a smoke exhaust pipe; 15. a chimney; 16. a lower smoke chamber; 17. an air preheater; 18. a smoke returning pipe; 19. the motor is driven.

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.

As shown in fig. 1-4, the heating and cracking device for volatile organic compounds includes a structural body, the structural body includes a furnace 1, one end of the furnace 1 is provided with a burner interface 2, the burner interface 2 is connected with a burner 13, the top of the furnace 1 is provided with a smoke outlet 6, the smoke outlet 6 is connected with a smoke exhaust pipe 14, the lower end of the smoke exhaust pipe 14 is connected with a lower smoke chamber 16, the lower smoke chamber 16 is provided with an air preheater 17 and a chimney 15, the air preheater 17 is provided with a smoke return pipe 18 and a driving motor 19, and the smoke return pipe 18 is connected with the burner 13.

In addition, one end of the hearth 1 is provided with a nitrogen fire extinguishing port 3, the nitrogen fire extinguishing port 3 and the burner 13 are positioned at the same end of the hearth 1, and the other end of the hearth 1 is provided with a hearth outlet smoke temperature detection port 12, a hearth pressure detection port 7, a maintenance hole 8 and a flame observation port 9; an organic steam inlet 5 and an organic steam outlet 4 are arranged on the hearth 1; a heat conduction oil inlet 10 and a heat conduction oil outlet 11 are arranged on the hearth 1; the hearth 1 is of a horizontal columnar structure.

The utility model discloses volatile organic compounds pyrolysis device, at the pyrolysis process, furnace 1's flue gas passes through exhaust port 6 and discharges to discharging fume in the pipe 14, through discharging fume 14 and get into down smoke chamber 16, the flue gas in the lower smoke chamber 16 passes through air heater 17 and preheats organic steam, reduces the energy consumption, and the flue gas in the pipe 14 of discharging fume partly discharges away through chimney 15, and partly returns to combustor 13 through smoke return pipe 18 and carries out combustion-supporting, reduces combustion temperature, reduces the energy consumption.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. Volatile organic compounds heating cracker, its characterized in that includes a main structure body, main structure body includes furnace (1), furnace (1) one end is equipped with combustor interface (2), the connection is equipped with combustor (13) on combustor interface (2), furnace (1) top is equipped with exhaust port (6), the connection is equipped with exhaust pipe (14) on exhaust port (6), exhaust pipe (14) lower extreme is connected and is equipped with down smoke chamber (16), smoke chamber (16) are equipped with air heater (17) and chimney (15) down, be equipped with smoke return pipe (18) and driving motor (19) on air heater (17), smoke return pipe (18) with combustor (13) are connected.

2. The apparatus according to claim 1, wherein: furnace (1) one end is equipped with nitrogen gas fire extinguishing hole (3), nitrogen gas fire extinguishing hole (3) with combustor (13) are in same one end of furnace (1), furnace (1) other end is equipped with furnace export cigarette temperature and detects mouth (12), furnace pressure detection mouth (7), maintenance hole (8) and flame viewing aperture (9).

3. The apparatus according to claim 1, wherein: an organic steam inlet (5) and an organic steam outlet (4) are arranged on the hearth (1).

4. The apparatus according to claim 1, wherein: the hearth (1) is provided with a heat conduction oil inlet (10) and a heat conduction oil outlet (11).

5. The apparatus according to claim 1, wherein: the hearth (1) is of a horizontal columnar structure.