CN207162549U - A kind of refuse pyrolysis gasification combustion furnace - Google Patents

Abstract

The utility model relates to the field of environmental protection equipment, in particular to a garbage pyrolysis gasification combustion furnace. Including feed inlet, pyrolysis gasification furnace, combustion furnace, gas secondary combustion chamber, cooling spray chamber, spiral dust removal chamber, pulse dust removal chamber, induced draft fan, desulfurization and denitrification chamber and smoke exhaust port, the feed inlet , pyrolysis gasification furnace, combustion furnace, and slag outlet are arranged in a straight line. The gas secondary combustion chamber, cooling spray chamber, spiral dust removal chamber, pulse dust removal chamber, induced draft fan, desulfurization and denitrification chamber, exhaust The smoke outlets are arranged in a straight line and arranged vertically with the above-mentioned pyrolysis gasification furnace; the air inlet of the gas secondary combustion chamber is located in the middle of the pyrolysis gasification furnace. The utility model realizes thermal energy recycling through the integrated design of pyrolysis and gasification furnace, combustion furnace and gas secondary combustion chamber, effectively solves the problem of wet and incombustible garbage, improves the efficiency of garbage combustion, and reduces environmental pollution. pollute.

Description

A garbage pyrolysis gasification combustion furnace

technical field

The utility model relates to the field of environmental protection equipment, in particular to a garbage pyrolysis gasification combustion furnace.

Background technique

Rural and township garbage in my country adopts outdated treatment methods such as simple landfill, open-air incineration, and random dumping, which cause environmental pollution. According to the requirements of the national environmental protection department, all domestic waste must be sent to a special place for incineration. Up to standard. In the case of increasing market demand, more and more manufacturers have begun to produce domestic waste incinerators and set up waste incineration stations around villages and towns, which not only solves the problem of waste disposal, but also solves the problem of remote incineration sites and expensive waste transportation costs The problem. However, since domestic waste is generally piled in the open air, in cloudy and rainy days, the incineration materials are often wet and cannot be burned, which makes the incineration equipment unable to work. Although the incineration site equipment is in good condition, the moisture of the material affects the incineration effect. In this case, new equipment is needed to solve the problem of material moisture.

Existing garbage disposal equipment only involves the incineration of garbage and the improvement of incinerators, but still cannot solve the problem of moisture in the garbage itself. The utility model patent with publication number CN 104087334 A discloses a cracking furnace, but its It is an electromagnetic cracking furnace designed for high-pollution waste such as rubber tires. It is not aimed at the moisture and water vapor contained in the waste itself, and it still cannot solve the problem of difficulty in incineration caused by wet waste.

Utility model content

In view of the above deficiencies, the utility model provides a garbage pyrolysis gasification combustion furnace, which can effectively perform integrated treatment of garbage such as pyrolysis, gasification, drying, and combustion, and solves the problem of moisture in the process of burning garbage.

The technical scheme of the utility model is:

A garbage pyrolysis gasification combustion furnace, including a feed inlet, a pyrolysis gasification furnace, a combustion furnace, a gas secondary combustion chamber, a cooling spray chamber, a spiral dust removal chamber, a pulse dust removal chamber, an induced draft fan, and a desulfurization and denitrification chamber and smoke exhaust outlet, the feed inlet, pyrolysis gasification furnace, combustion furnace, and slag discharge outlet are arranged in a straight line, the gas secondary combustion chamber, cooling spray chamber, spiral dust removal chamber, pulse dust removal chamber Chamber, induced draft fan, desulfurization and denitrification chamber, and smoke exhaust outlet are arranged in a straight line and arranged vertically with the above-mentioned pyrolysis and gasification furnace; the air inlet of the gas secondary combustion chamber is located in the middle of the pyrolysis and gasification furnace.

The cross-section of the pyrolysis gasification furnace gradually increases from the feed port to the combustion chamber.

The pyrolysis gasification furnace path gradually slopes downward from the feed inlet to the combustion furnace.

The combustion temperature of the combustion furnace is 900-1100°C.

The combustion temperature of the gas secondary combustion chamber is 1100°C.

The utility model adopts the integrated design of pyrolysis gasification furnace, combustion furnace and gas secondary combustion chamber. Garbage is decomposed into combustible gases such as carbon monoxide and gaseous hydrocarbons in the pyrolysis gasification furnace and enters the gas secondary combustion chamber for combustion. , the solid residue after pyrolysis and gasification enters the combustion furnace for full combustion, and the heat generated by the combustion of gas and solid residue is used to provide the heat energy required for pyrolysis, gasification and drying of garbage, which realizes the recycling of heat energy and effectively solves the problem of garbage The problem of humidity and incombustibility improves the efficiency of garbage burning, and the burning of garbage is thorough, reducing environmental pollution.

Description of drawings

Fig. 1 is the perspective view of the utility model garbage pyrolysis gasification combustion furnace;

Fig. 2 is the left side view of the waste pyrolysis gasification combustion furnace of the utility model.

Detailed ways

The conception, specific structure and technical effects of the present utility model will be further described below in conjunction with the accompanying drawings, so as to fully understand the purpose, characteristics and effects of the present utility model.

Referring to Fig. 1, the waste pyrolysis gasification combustion furnace of the present invention includes a feed inlet 11, a pyrolysis gasification furnace channel 12, a combustion furnace 13, a gas secondary combustion chamber 21, a cooling spray chamber 22, and a spiral dust removal chamber 23. Pulse dust removal chamber 24, induced draft fan 25, desulfurization and denitrification chamber 26, and smoke exhaust port 27. The feed port 11, pyrolysis gasification furnace 12, combustion furnace 13, and slag discharge port 14 are arranged sequentially in a line , the gas secondary combustion chamber 21, cooling spray chamber 22, spiral dust removal chamber 23, pulse dust removal chamber 24, induced draft fan 25, desulfurization and denitrification chamber 26, and smoke exhaust port 27 are arranged in a straight line and are connected with the above-mentioned pyrolysis gas The gasification furnace path 12 is arranged vertically; the air inlet of the gas secondary combustion chamber 21 is located in the middle of the pyrolysis gasification furnace path 12 .

Garbage enters the pyrolysis gasification furnace 12 through the feed port 11, and gradually enters the combustion furnace 13 under the push of the piston. Since the gas secondary combustion chamber 21 is connected to the pyrolysis and gasification furnace 12, the pyrolysis and gasification furnace 12 is filled with high-temperature flue gas under the action of the induced draft fan 25, and the garbage is dried in the pyrolysis and gasification furnace 12. Pyrolysis and gasification, decomposing into combustible gases such as carbon monoxide and gaseous hydrocarbons, and solid and liquid residues such as liquid tar, carbon, inorganic dust and inert substances.

The solid and liquid residue enters the combustion furnace 13 for incineration to realize oxidation and reduction reactions. Specifically, the carbon, tar and oxygen in the solid and liquid residue undergo a violent oxidation reaction to generate CO ₂ and H ₂ O. The combustion temperature is 900-1100 ℃, the heat generated by combustion is used to provide the heat required for the reduction reaction and pyrolysis, gasification, drying, etc. in the pyrolysis gasification furnace. In the reduction reaction, CO ₂ and H ₂ O are reduced by hot C to produce CO, _H2 and other combustible gases. The residue produced by combustion is discharged from the slag outlet below the combustion furnace 13 .

The combustible gas produced during the pyrolysis gasification and combustion process enters the gas secondary combustion chamber 21 from the air inlet located in the middle of the pyrolysis gasification furnace 12, and realizes full combustion in the combustion chamber. The combustion of the gas secondary combustion chamber 21 The temperature is about 1100°C, and the flue gas stays in the combustion chamber for more than 2 seconds, completely burning harmful gases and dioxins. The combusted flue gas enters the cooling spray chamber 22 for spray cooling, then enters the spiral dedusting chamber 23 and the pulse dedusting chamber 24 to remove dust and impurities, then enters the desulfurization and denitrification chamber 26 to remove sulfur and nitrate in the gas, and finally discharges The smoke port 27 is discharged into the atmosphere.

Referring to Fig. 2, in order to facilitate the movement of garbage from the feed port 11 to the combustion furnace 13, the cross section of the pyrolysis gasification furnace 12 gradually increases from the feed port 11 to the combustion furnace 13, and gradually slopes downward. Under the external conditions of continuous and stable operation of the feeding and slagging system, the physical and chemical processes of each reaction section in the furnace are carried out continuously and stably. Due to the problem of incombustibility caused by wet garbage, it can completely decompose the toxic and harmful substances in the garbage, so that it can be fully burned, reduce air and environmental pollution, and the heat generated by combustion can be fully and effectively used to reduce energy consumption. Low cost and effective waste disposal.

The above disclosures are only the embodiments of the present utility model, but the present utility model is not limited thereto, and any changes conceivable by those skilled in the art should fall within the protection scope of the present utility model.

Claims (5)

1. a kind of refuse pyrolysis gasification combustion furnace, it is characterised in that including charging aperture（11）, pyrolytic gasification combustion flue（12）, burning Burner hearth（13）, gas secondary combustion chamber（21）, chilling spray room（22）, spiral dirt pocket（23）, pulse dust removal room（24）, air inducing Machine（25）, desulphurization denitration room（26）And exhaust opening（27）, the charging aperture（11）, pyrolytic gasification combustion flue（12）, burner hearth （13）, slag-drip opening（14）Arrangement, the gas secondary combustion chamber are arranged in order for in-line（21）, chilling spray room（22）, spiral shell Revolve dirt pocket（23）, pulse dust removal room（24）, air-introduced machine（25）, desulphurization denitration room（26）, exhaust opening（27）For in-line successively Arrangement and with above-mentioned pyrolytic gasification combustion flue（12）It is arranged vertically；The gas secondary combustion chamber（21）Air inlet be located at pyrolysis gas Change combustion flue（12）Middle part.

2. refuse pyrolysis gasification combustion furnace according to claim 1, it is characterised in that the pyrolytic gasification combustion flue（12）It is horizontal Section is from charging aperture（11）To burner hearth（13）Gradually increase.

3. refuse pyrolysis gasification combustion furnace according to claim 1, it is characterised in that the pyrolytic gasification combustion flue（12）From Charging aperture（11）To burner hearth（13）Tilt gradually downward.

4. refuse pyrolysis gasification combustion furnace according to claim 1, it is characterised in that the burner hearth（13）Burning Temperature is 900-1100 DEG C.

5. refuse pyrolysis gasification combustion furnace according to claim 1, it is characterised in that the gas secondary combustion chamber（21） Ignition temperature be 1100 DEG C.