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Preparation method applicable to treating garbage derivate by being jointed with cement kiln

A technology of waste-derived fuel and cement kiln, which is applied in the field of preparation of waste-derived fuel combined with cement kiln disposal to achieve the effects of eliminating pollution, reducing quantity and increasing calorific value.

Inactive Publication Date: 2012-12-19
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the environmental pollution problems in domestic waste treatment and the technical problems in the use of waste-derived fuels in cement production, the present invention proposes a preparation method suitable for joint disposal of waste-derived fuels in cement kilns, and realizes the reduction of domestic waste , Recycling, Harmless Disposal

Method used

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  • Preparation method applicable to treating garbage derivate by being jointed with cement kiln

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The primary domestic garbage taken out of the landfill is screened by magnetic separation, air separation, and gravity separation to remove inorganic non-combustible materials such as metals, bricks, dust, and glass in the garbage;

[0022] The combustible household garbage left after screening is crushed by a shear crusher to a particle size of 50mm;

[0023] In the combustible domestic garbage after crushing, mix 20% of the coal and 8% of the total weight of garbage, coal and alkaline additive into the broken combustible domestic garbage, and then fully stir and mix uniformly; Described alkaline additive is made up of the papermaking black liquor of 70% weight part and the calcium oxide of 30% weight part;

[0024] Transport the mixture of the above-mentioned domestic garbage, coal and additives to the drying room, and dry it through forced ventilation to reduce the moisture content to below 20%;

[0025] The material output from the drying chamber is directly sent t...

Embodiment 2

[0027] The primary domestic garbage taken out of the landfill is screened by magnetic separation, air separation, and gravity separation to remove inorganic non-combustible materials such as metals, bricks, dust, and glass in the garbage;

[0028] The combustible domestic garbage remaining after screening is crushed by a shear crusher to a particle size of 40mm;

[0029] Add 10% of the total weight of coal and 10% of the total weight of garbage, coal and alkaline additives into the broken combustible domestic waste, and then fully stir and mix them uniformly; Described alkaline additive is made up of the calcium oxide of the papermaking black liquor of 50% weight part and 50% weight part;

[0030] Transport the mixture of the above-mentioned domestic garbage, coal and additives to the drying room, and dry it through forced ventilation to reduce the moisture content to below 20%;

[0031] The material output from the drying chamber is directly sent to the molding machine for e...

Embodiment 3

[0033] The primary domestic garbage taken out of the landfill is screened by magnetic separation, air separation, and gravity separation to remove inorganic non-combustible materials such as metals, bricks, dust, and glass in the garbage;

[0034] The combustible domestic garbage remaining after screening is crushed by a shear crusher to a particle size of 60mm;

[0035] Add 15% of the total weight of coal and 5% of the total weight of garbage, coal and alkaline additives into the broken combustible domestic waste, and then fully stir and mix them uniformly; Described alkaline additive is made up of the calcium oxide of the papermaking black liquor of 60% weight part and 40% weight part;

[0036] Transport the mixture of the above-mentioned domestic garbage, coal and additives to the drying room, and dry it through forced ventilation to reduce the moisture content to below 20%;

[0037] The material output from the drying chamber is directly sent to the molding machine for ex...

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Abstract

The invention discloses a preparation method applicable to treating garbage derivate by being jointed with a cement kiln, belonging to the technical field of garbage treatment. The method provided by the invention comprises the following steps: sieving the domestic garbage to remove inorganic incombustible matters; crushing the domestic garbage through a crushing machine; adding 10 to 20% of crushed coal and 5 to 10% of alkaline additive by weight; fully agitating and uniformly mixing the mixtures; and then drying the mixture by forcibly ventilating; and finally extruding to form through forming equipment so as to obtain the garbage derivate fuel. With the adoption of the preparation method provided by the invention, the land resource can be saved, the pollution of the garbage to the environment is removed, the cost of preparing the garbage derivate fuel through the method is low, the quality of the product is high, and a product can be remotely conveyed and stored for a long time, so that the reduction, the recycling and the innocent treatment of the domestic garbage can be achieved.

Description

technical field [0001] The invention belongs to the technical field of garbage treatment, and in particular relates to a preparation method suitable for cement kiln joint disposal of garbage derived fuel. Background technique [0002] With the acceleration of urbanization in our country, the output of garbage is increasing day by day, and the problem of garbage treatment and disposal caused by it has become one of the main environmental problems in our country. The phenomenon of "garbage siege" has appeared in many cities in my country. The landfill treatment method cannot fundamentally solve the problem. With the passage of time and the development of the city, land resources and groundwater pollution cannot be avoided by landfill methods. ; and incineration methods have gradually begun to be eliminated by the West due to the secondary pollution problem; although the incineration method of incinerators can reduce the volume of garbage and recover part of the heat, it has not...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/46
CPCY02E50/30Y02E50/10
Inventor 金宜英刘富强秘田静
Owner TSINGHUA UNIV
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