A kind of domestic garbage flash mineralization treatment method

Abstract

The invention discloses a household waste flash mineralization treatment method, and relates to a household waste treatment method. The household waste flash mineralization treatment method comprisesthe steps that S1, normal production furnace start preparation is made, wherein permanent magnets and honeycomb ceramic bodies are alternatively arranged in a fire grate hollow shell, and N poles andS poles of the permanent magnets are oppositely assembled at intervals to build an original magnetic field; S2, feeding is carried out; S3, over-temperature control is carried out, where a furnace body over-temperature control system monitors the in-furnace temperature in real time online; S4, gas intake and in-furnace control are carried out, wherein the size of an intake valve at the furnace bottom is adjusted to maintain the in-furnace negative pressure to be -80 Pa to -120 Pa, remnant magnetic anion ash with the thickness being 15 cm-20 cm is stored at the bottom in a hearth; S5, flue gaspurification treatment is carried out; and S6, slag discharge control is carried out, wherein a fire grate motor is started to rotate a fire grate, and the ash falls to a scraping blade type slag discharge machine from a fire grate gap to scrape out the ash. The household waste flash mineralization treatment method can realize garbage harmless treatment and daily removal after daily production, has the characteristics of safety, cleanness, economical efficiency, energy saving and the like, and is suitable for large-scale use in the countryside.

Description

technical field [0001] The invention relates to a domestic garbage treatment method, in particular to a domestic garbage flash mineralization treatment method. Background technique [0002] According to statistics, my country produces about 310 million tons of domestic waste annually, and the harm to the environment of huge domestic waste is becoming increasingly apparent; conventional methods of domestic waste disposal include incineration, landfill, composting, etc. These conventional methods have certain convenience, but there are also many defects, not only the problems of land occupation, poor treatment effect and low treatment efficiency, but also the problem of secondary pollution. For example, domestic waste incineration is an important means of reducing and harmless treatment, but the dioxins, heavy metals, acid gases, etc. produced by incineration are likely to cause secondary environmental pollution. To eliminate these toxic and harmful substances in the flue gas,...

AI Technical Summary

Problems solved by technology

Since the garbage decomposition is carried out on the bottom plate, it is mixed with the generated ash residue and reactants, there is no obvious layered boundary, and there are vertical air inlet pipes distributed at the bottom, which makes the slag production operation very difficult and the production capacity Big discount

[0005] (2) The application publication number is "Plasma Garbage Treatment System and Method" CN102284467A, which discloses that a superheated steam dryer dries the garbage; a plasma gasifier pyrolyzes the dried garbage under the high temperature of the plasma torch to produce hydrogen-containing gas , carbon monoxide and carbon dioxide mixed gas; the high temperature heat exchanger heats the mixed gas to cool down; the oxygen heat exchanger heats the combustion-supporting oxygen with the mixed gas after heat exchange and cooling, and outputs flue gas; The flue gas output by the heat exchanger is cooled and deacidified; the first dust collector removes dust from the flue gas treated by the quenching tower; the induced draft fan transmits the flue gas after the dust removal by the first dust collector; The flue gas drives the generator to generate electricity and outputs flue gas; the waste heat boiler cools the flue gas output by the gas-fired internal combustion engine; the second dust collector removes dust from the flue gas cooled by the waste heat boiler, and sends it into the chimney for emission; this device has high technical content , equipment investment is complex, not suitable for small-scale processing capacity requirements in rural areas

[0006] (3) The application publication number is CN1033131482A "A Non-Powered Household Garbage Flash Mineralization Processor" discloses the box body, chimney and air intake system. It adopts ion incremental device and utilizes the principle of flash mineralization to realize life Garbage reduction and harmlessness; its disadvantages are also due to the fact that garbage decomposition is carried out on the bottom plate, mixed with the generated ash residue and reactants, there is no obvious layered dividing line, and there are vertical air intake pipes distributed at the bottom , resulting in difficult slag production operations and greatly reduced production capacity

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