Treatment method for reducing moisture content of raw materials of refuse derived fuel
A waste-derived fuel and treatment method technology, which is applied in the field of waste-derived fuel RDF raw material processing, can solve the problems of high moisture content, high precipitation cost of thermal drying method, hindering the production of waste-derived fuel, etc., so as to avoid waste of resources, investment and The effect of low running cost
Inactive Publication Date: 2011-04-13
SOUND ENVIRONMENTAL RESOURCES
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[0003] In order to overcome the shortcomings and deficiencies in the prior art, the embodiment of the present invention provides a treatment method for dewatering the raw materials used as waste-derived fuels, so as to solve the problem that the moisture content of compost materials used as raw materials for waste-derived fuels is too high, which hinders subsequent waste disposal. Derivative fuel production, but the thermal drying method has high precipitation costs and low overall energy recovery efficiency
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[0015] This embodiment provides a treatment method for dewatering the compost used as the raw material of the refuse-derived fuel, which can be used as a material for fuel after municipal waste treatment, to produce a treatment method for the refuse-derived fuel RDF, such as figure 1 As shown, the processing method includes:
[0016] Combustible and compostable materials obtained after garbage sorting are used as raw materials for making garbage-derived fuels;
[0017] Crushing: Crushing the material used as raw material, so that the particle size of the material is broken to below 80mm; specifically, shearing crusher or any other type of crusher suitable for crushing plastic materials can be used to crush the material;
[0018] Material stacking: Make the crushed materials form a material pile, and set an air duct 2 corresponding to the material pile 1; specifically, transport the crushed materials to the fermentation bin, form a pile in the fermentation bin, and form a The ...
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The invention discloses a treatment method for reducing the moisture content of composts serving as raw materials of a refuse derived fuel, which comprises the following steps of: taking materials of combustibles and compostable materials which are obtained by refuse sorting as the raw materials for producing the refuse derived fuel; crushing, namely crushing the materials serving as the raw materials to ensure that the grain diameter of the crushed materials is below 80 millimeters; stacking the materials, allowing the crushed materials to form a material stack, and arranging an air flue corresponding to the material stack; and reducing the moisture content by ventilating and fermenting, namely ventilating the material stack in the air flue by using ventilating equipment, stacking the material stack statically for 7 to 10 days under the ventilating condition of between 0.05 and 0.20 m<3>air / m<3>material.minute, decomposing the compostable materials in the materials aerobically by microbes in the material stack and producing heat to ensure that the temperature of the stack is raised, the moisture content of the materials is reduced from 40 to 50 percent to 15 to 25 percent, and the moisture content of the treated materials meets the requirement of producing the refuse derived fuel. In the treatment method, the investment cost and running cost are low, and resource waste is avoided; and compared with the conventional hot drying method, the treatment method has low cost.
Description
technical field [0001] The invention relates to a technology for processing raw materials of garbage-derived fuel RDF, in particular to a method for treating raw materials used as garbage-derived fuels for precipitation. Background technique [0002] At present, the sieved material in the pre-treatment workshop of the comprehensive municipal solid waste treatment plant is usually air-selected and manually sorted, and the remaining materials are landfilled. This treatment method not only needs to occupy the storage capacity of the landfill site, but also costs landfill treatment costs, and because the remaining materials still contain a large amount of plastic, direct landfilling is also a great waste of resources. Due to wind selection and manual sorting, the remaining materials contain plastic types with high value of recycled materials, such as polyethylene plastic (PE), etc., which have basically been removed, and the rest are mainly various miscellaneous plastics, which ...
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IPC IPC(8): C10L5/46
CPCY02E50/30Y02E50/10
Inventor 李习武孙星凡李天增刘之虎杨永杰
Owner SOUND ENVIRONMENTAL RESOURCES