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Fuel produced from waste polyurethane foams and processing method of fuel

A technology of polyurethane foam and molding fuel, which is applied in the field of waste polyurethane foam molding fuel and its processing, can solve the problems of inability to recover energy, difficult to compress and reduce volume, and occupy a large volume, so as to save logistics costs and improve stability. , the effect of good combustion performance

Inactive Publication Date: 2012-04-04
NANJING HUANWU RESOURCES RECYCLING TECH
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Problems solved by technology

Due to the small proportion of foamed polyurethane, it occupies a large volume, and is not easy to compress and reduce volume. It degrades very slowly under natural conditions. Using landfill treatment will occupy a large amount of land resources, and it cannot be reused by itself. , is not conducive to the protection of the environment and the development of circular economy
The currently adopted incineration treatment method, because there is a large amount of gas stored in the pores of the foamed polyurethane itself, the combustion speed is very fast. When feeding into the furnace, flashing will occur at the furnace mouth, which cannot achieve the purpose of energy recovery. and pose a great safety hazard

Method used

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Embodiment Construction

[0015] In view of the characteristics of small specific gravity and large volume of waste thermosetting foamed polyurethane, the foamed polyurethane is ground into a powdery material with a particle size of ≤ 2 mm by grinding and pulverizing; then rice husk, straw powder, etc. containing cellulose and lignin are added Agricultural waste granules, wherein waste polyurethane foam powder accounts for 60% to 70% (by weight), and agricultural waste granules containing cellulose and lignin account for 30% to 40% (by weight). 5% of the total weight of water is added for stirring; the stirred mixture is formed into strips similar to coal under the conditions of heating and pressurizing by using straw fuel molding equipment. The purpose of safe burning has been realized.

[0016] Our company uses the M700 pulverizer produced in Taizhou, Zhejiang to pulverize the waste polyurethane foam, and the pulverized screen mesh is ≤2mm; Mix the mixture at a ratio of 65:35 and pour it into the ho...

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Abstract

The invention discloses a fuel produced from waste polyurethane foams. The fuel is characterized by comprising 60%-70% by weight of waste polyurethane foam powder and 30%-40% by weight of agricultural waste particles containing cellulose and xylogen. A processing method of the fuel produced from the waste polyurethane foam comprises the following steps of: (1) crushing the waste polyurethane foams by using a crushing machine, wherein the diameter of meshes of a crushing screen of the crushing machine is not greater than 2mm; and (2) mixing the crushed waste polyurethane foams and the agricultural waste particles containing the cellulose and the xylogen, pouring the mixture into a forming machine, adding water weight of which is 5% of total weight of the mixture into the forming machine, completely mixing the mixture, and heating and squeezing to form the fuel. The fuel disclosed by the invention has the advantages of no flash burn, high compression ratio as well as stability and sufficiency in combustion.

Description

technical field [0001] The invention belongs to the technical field of recycling waste materials, in particular to a waste polyurethane foam molding fuel and a processing method thereof. Background technique [0002] With the rapid growth of social e-waste, the government has strengthened the standardized management of e-waste disposal and disposal. In the process of replacing old household appliances with new ones, dismantling refrigerators produces a large amount of waste polyurethane foam; the current disposal methods are mainly incineration and landfill. Due to the small proportion of foamed polyurethane, it occupies a large volume, and is not easy to compress and reduce volume. It degrades very slowly under natural conditions. Using landfill treatment will occupy a large amount of land resources, and it cannot be reused by itself. , It is not conducive to the protection of the environment and the development of circular economy. The currently adopted incineration trea...

Claims

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Application Information

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IPC IPC(8): C10L5/48
Inventor 徐新民张健陈刚
Owner NANJING HUANWU RESOURCES RECYCLING TECH
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