A kind of harmful gas dynamic purification reactor and purification method thereof

A harmful gas and reactor technology, applied in chemical instruments and methods, separation methods, calcium/strontium/barium halides, etc., can solve problems such as easy generation of dioxins, incomplete combustion of chlorine-containing waste, and achieve manufacturing costs Low, simple structure, high clearance effect

Active Publication Date: 2015-08-12
ENVIRONMENTAL PROTECTION EQUIP CO LTD SHANDONG GIANT ASIA
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Problems solved by technology

[0005] At present, it is believed that there are three main ways: 1. During the incineration process of vinyl chloride and other chlorine-containing plastics, the incineration temperature is lower than 800 ° C, and the chlorine-containing waste is not completely burned, and dioxins are easily generated.

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  • A kind of harmful gas dynamic purification reactor and purification method thereof
  • A kind of harmful gas dynamic purification reactor and purification method thereof

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Embodiment

[0026] The working principle of the harmful gas dynamic purification reactor of the present invention is as follows: as introduced in the background technology, the main source of dioxin is caused by the combustion of chlorine-containing plastic waste in a low-temperature and anoxic state, and the chlorine-containing plastic waste in a low-temperature and anoxic state When burning at a temperature lower than 800°C, first, chlorine is decomposed into gaseous chloride ions, and carbon and hydrogen generate carbon dioxide, water or small molecular weight compounds. Dioxin can be synthesized with other small molecular weight organic compounds at ℃ temperature. Experiments have proved that even if chlorine-containing plastics are burned and decomposed at 1000℃, dioxin can also be synthesized when the temperature is naturally cooled to 400-800℃ in the flue. It is the root cause that no matter how high the temperature of waste incineration is, it cannot completely remove dioxins. Acc...

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Abstract

The invention discloses a harmful gas dynamic purification reactor and a purification method thereof, wherein saturated whitewash is used as a cleaning agent to react with chlorine elements produced after the decomposition of a chlorine-containing plastic waste in a shell of an induced draft fan and a flue to produce calcium chloride, then the concentration of the chlorine elements for the synthesis of dioxin at the temperature interval of 400-800 DEG C is reduced, the production of dioxin is completely eradicated, the dynamic purification reactor structurally comprises the shell of the induced draft fan, an impeller, blades and a saturated whitewash nozzle, wherein the impeller is arranged in the shell of the induced draft fan, the blades are uniformly arranged on the impeller, the saturated whitewash nozzle is arranged in a smoke inlet of the induced draft fan, the saturated whitewash nozzle is connected with a saturated whitewash pressurization liquid storage tank, the smoke inlet of the induced draft fan is connected with a smoke outlet of a waste incineration furnace, and the smoke outlet is connected with a gas-liquid separator and a calcium chloride concentrating and drying process.

Description

Technical field: [0001] The invention relates to a harmful gas dynamic purification reactor, in particular to a device for removing dioxin and harmful gas from a garbage incinerator. Background technique: [0002] Dioxin, also known as dioxin, 2,3,7,8-tetrachlorodibenzo-p-dioxin 2,3,7,8-Tetrachlorodibenzo chemical formula: C12H4C1402, is a colorless and odorless , fat-soluble substances with severe toxicity, dioxin is actually an abbreviation of dioxins (Dioxins), it refers not to a single substance, but contains many congeners or isomers with similar structures and properties The full names are polychlorinated dibenzo-p-dioxin (referred to as PCDDs) and polychlorinated dibenzofuran (abbreviated as PCDFs), which are linked by two oxygen atoms. Two benzene rings substituted by chlorine atoms; polychlorinated dibenzofurans (PCDFs) are connected by an oxygen atom to two benzene rings substituted by chlorine atoms. Each benzene ring can substitute 1 to 4 chlorine atoms to form...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/78B01D53/68C01F11/28
Inventor 张亚玉周圣芳王志强张琳慧
Owner ENVIRONMENTAL PROTECTION EQUIP CO LTD SHANDONG GIANT ASIA
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