Hazardous Waste Pretreatment System

Abstract

The invention discloses a hazardous waste pretreatment system. The hazardous waste pretreatment system comprises a coarse powder hazardous waste pretreatment unit, a solid hazardous waste pretreatment unit, a paste hazardous waste pretreatment unit, a special hazardous waste pretreatment unit and a liquid hazardous waste pretreatment unit, wherein the coarse powder hazardous waste pretreatment unit is used for pretreating coarse powder hazardous waste, the solid hazardous waste pretreatment unit is used for pretreating solid hazardous waste, the paste hazardous waste pretreatment unit is used for pretreating paste hazardous waste, the special hazardous waste pretreatment unit is used for pretreating special hazardous waste, the liquid hazardous waste pretreatment unit is used for pretreating liquid hazardous waste, and the hazardous waste is fed into an incineration system for incineration treatment after being subjected to physical form shaping, material compatibility matching and calorific value adjustment. According to the hazardous waste pretreatment system, the materials which will enter the incineration system can be subjected to physical form unification beforehand and processed through compatibility and calorific value matching, so that the materials burn sufficiently in the incineration system, the sources of fuel are stable, and the efficiency is improved.

Description

technical field [0001] The invention relates to a hazardous waste treatment system, in particular to a hazardous waste pretreatment system. Background technique [0002] With the continuous development of industrialization in modern society, wastes, especially hazardous wastes, are increasing in the production of factories. According to the statistics of the National Hazardous Wastes List, there are more than 3,000 kinds of hazardous wastes in 49 categories, most of which should be incinerated. Reduction treatment. [0003] The prerequisites for the material to be completely incinerated in the furnace are: ① relatively consistent incineration rate; ② relatively uniform low calorific value; ③ no violent deflagration reaction; [0004] The physical and chemical properties of hazardous waste fluctuate widely, such as the fluctuation range of mass from a few milligrams to about 15 kilograms; the fluctuation range of moisture content is 0-70%; the fluctuation range of calorific ...

AI Technical Summary

Problems solved by technology

[0005] At present, the method of simple mixing and matching of materials is directly sent to the incinerator for incineration, and no targeted pretreatment is carried out before entering the incinerator, resulting in unstable incineration effect and low burnout rate, which makes tail gas treatment difficult and emissions difficult to meet standards , high content of unburned organic matter in the ash and other environmental pollution problems

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