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Molded coal made from garbage and process for preparing same

A technology of waste and coal slime, applied in the field of waste utilization, can solve the problems of large investment in waste-to-energy power generation, small amount of waste, and large floor space, and achieve the effects of significant environmental protection benefits, considerable economic benefits, and short construction period.

Inactive Publication Date: 2005-07-06
CHANGCHUN HONGGUANG CLEAN ENERGY DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Urban waste treatment technologies vary from country to country. In the United States, waste-to-energy is used for power generation. Because the composition and quality of waste in each country are different, living standards, habits, and living materials are also different. Funding is also an important reason; Japan uses heat treatment for waste incineration. energy, causing serious secondary pollution
my country's municipal solid waste treatment is mainly stacking and landfilling, which waste energy, occupy a large area, and cause secondary pollution, which affects the environment around the waste site and people's health; incineration, heat treatment The waste of energy also causes secondary pollution; the investment in waste power generation is large, and the quality and composition of urban waste in my country are not suitable for power generation; the amount of waste used by composting and anaerobic methods is very small, and the economic benefits are also very low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] ① Garbage enters the dedicated garbage site;

[0027] ② Immediately carry out harmless treatment after the garbage is piled up, spray 2 kg of bleaching powder (powder) per cubic meter of garbage, and spray 10 kg of lime (powder) for disinfection and deodorization at the same time; simply clean stones, bricks, glass bottles, etc. sorted out;

[0028] ③Garbage is crushed with a shredder to less than 3 mm;

[0029] ④The crushed garbage enters the drying furnace, where it is dried, deodorized and sterilized at 400°C; the dried gas is harmlessly discharged through the lime milk water tank;

[0030] ⑤ Mixing formula (parts by weight) after the garbage is dried: 50 parts of garbage, combustible substances containing fixed carbon: 30 parts of coke powder, 30 parts of coal slime, 10 parts of carbon powder, 10 parts of coal gangue, adhesive: 5 parts of cement share;

[0031] ⑥Mix the above-mentioned proportioning materials, and crush them below 3 mm after mixing;

[0032] ⑦ A...

Embodiment 2

[0037] Step ④ The drying temperature is 250°C;

[0038] Step ⑤ After the garbage is dried, mix the formula (parts by weight): 20 parts of garbage, combustible substances containing fixed carbon: 10 parts of coke powder, 10 parts of coal slime, 20 parts of oil shale, 20 parts of stone coal, adhesive: 4 parts of cement ;

[0039] Other steps are the same as in Example 1.

Embodiment 3

[0041] Step ④ The drying temperature is 350°C;

[0042] Step 5. After the garbage is dried, mix the formula (parts by weight): 30 parts of garbage, combustible substances containing fixed carbon: 20 parts of coke powder, 40 parts of coal, 30 parts of graphite powder, 30 parts of coal gangue, adhesive: 7 parts of cement ;

[0043] Other steps are the same as in Example 1.

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PUM

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Abstract

The invention provides a molded coal made from garbage and process for preparing same, wherein the molded coal comprises, (1) urban domestic refuse, (2) one or several flammable substances containing fixed carbon, including coal gangue, coal mud, stone coal, pulverized coke, bituminous shale, charcoal powder, coal, graphite powder, carbon black, (3) binder including loess, carclazyte, cement, soluble glass, industrial sewage, asphalt slag, coal tar, industrial maize starch and cellulose. The preparation process comprises the steps of sterilizing, artificial sorting, disintegrating, drying, charging binder, addition agent, mixing, magnetic separating, super fine crushing, modeling and drying.

Description

technical field [0001] The invention belongs to the technical field of garbage utilization, and specifically relates to a method for producing briquettes by using garbage as a raw material. International patent classification numbers: C10L 5 / 46, C10L 5 / 48. Background technique [0002] Since the 1980s, my country's society, economy and culture have undergone profound changes. With the development of the economy, the pollution of the environment is becoming more and more serious. In 1997, 120 million tons of urban domestic garbage and 35 billion tons of urban sewage and industrial wastewater were produced nationwide. At the same time, various pollution sources also released tens of thousands of tons of sulfur dioxide, nitrogen oxides and floating dust into the atmosphere, which aggravated environmental pollution. Disposal, recycling, energy, and harmlessness of urban waste have not been resolved. Urban waste treatment technologies vary from country to country. In the United...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/46
CPCY02E50/10Y02E50/30
Inventor 叶志厚李伟张海河
Owner CHANGCHUN HONGGUANG CLEAN ENERGY DEV
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