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Flue gas quenching device and method.

A flue gas quenching and flue gas technology, applied in the direction of combustion method, water shower cooler, combustion product treatment, etc., can solve the problems of unfeasible recycling, environmental pollution, etc., and achieve the effect of reducing operating costs and avoiding bridging

Inactive Publication Date: 2020-02-21
GUANGDONG SHENLING ENVIRONMENT SYST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Because flue gas will undergo a chemical reaction at 300°C to 400°C to synthesize dioxins. If dioxins are not decomposed, the generated dioxins will enter the atmosphere along with the flue gas and cause environmental pollution. It is not feasible to install a waste heat recovery heat exchange device before the quench tower to recover the heat in the flue gas

Method used

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  • Flue gas quenching device and method.

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Embodiment

[0039] This embodiment provides a flue gas quenching device, figure 1 It is a structural schematic diagram of the quenching device of the present invention, as shown in the figure, including: a casing, an atomizing sprayer 1, and an ash collecting box 2, and the casing is provided with a flue gas inlet 3 and a flue gas outlet 4, and the atomizing sprayer The water container 1 is arranged in the casing and above the smoke inlet 3 and / or the smoke outlet 4, and the ash collecting box 2 is arranged below the casing and connected to the bottom of the casing.

[0040] Specifically, the flue gas enters the device from the flue gas inlet 3, and the atomizing sprinkler 1 sprays water to cool down the high-temperature flue gas entering the device, and the cooled flue gas is discharged from the flue gas outlet 4. A large amount of fly ash will be produced during the cooling of the flue gas, and these fly ash will descend and settle, and will be collected by the ash collecting box 2 arra...

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Abstract

The invention relates to the technical field of environmental protection, and particularly relates to a flue gas quenching device and method. The device comprises a housing, an atomizing water sprayerand an ash collecting box, wherein a flue gas inlet and a flue gas outlet are formed in the housing; the atomizing water sprayer is arranged in the housing and is positioned above the flue gas inletand / or the flue gas outlet; and the ash collecting box is arranged below the housing and is connected with the bottom of the housing. According to the flue gas quenching device and method, flue gas quenching can be carried out for a long time, and the heat of high-temperature flue gas can be recycled.

Description

technical field [0001] The invention relates to the technical field of environmental protection, and more specifically, to a device and method for rapidly cooling flue gas. Background technique [0002] With the increase of the population and the improvement of the quality of life, more and more garbage is produced in the city. Municipal waste incineration has been widely used in developed cities in China because of its remarkable advantages such as small footprint and land saving, not easily affected by weather, stable operation, short processing time, significant reduction, complete harmlessness, and recyclable heat energy. At present, there are more than 360 waste incineration power plants in China, and the domestic waste processed reaches 40Wt. Dioxin emissions from waste incineration account for 80-90% of the total dioxin emissions, and dioxins contained in incineration fly ash are the main source of dioxin emissions from incinerators. According to Item 7.6.1.7 of the...

Claims

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Application Information

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IPC IPC(8): F23J15/06F23J3/04F28C1/04F28C1/14F28F27/00
CPCF23J3/04F23J15/06F23J2217/60F23J2700/003F28C1/04F28C1/14F28F27/003
Inventor 林勇军张学伟陈华
Owner GUANGDONG SHENLING ENVIRONMENT SYST CO LTD
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