Retardant adding system and retardant adding method for retarding generation of dioxins

A technology of blocking agent and dioxin, which is applied in the field of pollution control caused by waste incineration, can solve the problems of high operation cost, unfavorable recovery of incineration heat energy, and inability to block the generation of dioxin-like substances, and achieves easy transportation and reduced energy consumption. cost effect

Inactive Publication Date: 2010-06-09
BEIJING CHINA SCI GENERAL ENERGY & ENVIRONMENT CO LTD
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Problems solved by technology

[0011] The technical problem to be solved by the present invention is to provide a blocker adding system and method for blocking the formation of dioxins in the waste incineration system, which can solve the pr

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  • Retardant adding system and retardant adding method for retarding generation of dioxins
  • Retardant adding system and retardant adding method for retarding generation of dioxins

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Embodiment Construction

[0039] Before the present invention is described in further detail in conjunction with the accompanying drawings and specific embodiments, at first introduce several main mechanisms of generating dioxins in the waste incineration process:

[0040] Mechanism 1. High temperature gas phase formation mechanism

[0041] After the garbage enters the incinerator and starts to burn after drying and preheating, some garbage (large pieces) may be in a local anoxic combustion state during combustion, and some incomplete combustion products will be generated at this time; the chlorine in the garbage ( Including organic chlorine and inorganic chlorine) most of them will be released in the form of HCl during combustion, and partly converted into Cl and Cl under the action of catalyst 2 ; while Cl and Cl 2 Both can chlorinate incomplete combustion products to generate chlorinated incomplete combustion products, and then generate PCDD / Fs through polymerization reaction. Among them, the opti...

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Abstract

The invention provides a retardant adding system and a retardant adding method for retarding generation of dioxins by a waste incineration system. The retardant adding system comprises a retardant adding device and a control device, wherein the retardant adding device is provided with a stock bin, an arching resistance unit and a conveying unit; the stock bin is used for storing the retardant; the arching resistance unit is used for preventing bridging or arching of the retardant in the stock bin; the conveying unit is used for conveying the retardant in the stock bin to a retardant adding point corresponding to the waste incineration system; the control device is used for monitoring all units of the retardant adding device and the work condition of the retardant, collecting related pressure parameters, temperature parameters and/or flow parameters, thereby providing accordance and feedback for the monitoring process. The proposal ensures that the retardant can be added to a plurality of retardant adding points of the waste incineration system in various modes, so that the system and the method are applicable to various waste incineration system, and have good adaptability for shapes, adding amount and types of the retardant.

Description

technical field [0001] The invention relates to the technical field of pollution control caused by garbage incineration, in particular to a system and method for adding a blocker to block the formation of dioxins in a garbage incineration system. Background technique [0002] The incineration treatment of solid waste such as household garbage has the advantages of complete harmlessness, high reduction, and high heat recovery and utilization rate. It is one of the technologies that best embodies the three principles of waste treatment. Regions are widely used. Since the end of the 1990s, waste incineration technology has also developed rapidly in my country, and large and medium-sized cities have built waste incineration power generation (heating) plants one after another. It will increase by a large margin, and the proportion of domestic waste and other solid waste treated by incineration will increase year by year. However, it cannot be ignored that the incineration method...

Claims

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Application Information

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IPC IPC(8): F23G5/44B01D53/70
Inventor 辛博栗明鲁光明刘向坤丁翔姜鸿安
Owner BEIJING CHINA SCI GENERAL ENERGY & ENVIRONMENT CO LTD
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