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Harmless high-carbon conversion method for non-food-residue household garbage as well as product and application of harmless high-carbon conversion method

A technology for domestic waste and meal waste, which is applied in the field of harmless high-carbon conversion of non-meal waste domestic waste, can solve the problems of not meeting the raw material requirements, not being able to directly use domestic waste for recycling, etc., to achieve high-value recycling and realize economic value , The effect of simple process

Active Publication Date: 2021-06-11
南京康发橡塑机械制造有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The materials after these simple treatments cannot meet the requirements of raw materials for high value-added transformation, so the existing processes and equipment cannot be directly used for the recycling of domestic waste

Method used

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  • Harmless high-carbon conversion method for non-food-residue household garbage as well as product and application of harmless high-carbon conversion method
  • Harmless high-carbon conversion method for non-food-residue household garbage as well as product and application of harmless high-carbon conversion method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] After sorting and dehydrating the non-dinner domestic waste (garbage component 1) from the garbage collection station, the moisture content is 8.2wt%, and it is crushed by a pulverizer into blocks or flakes with a size of 2 to 4 cm. According to the analysis, the content of polyethylene and polypropylene mixture (thermoplastic component, chlorine-free polyolefin) is 12.2wt%, which can be used directly. Using a specially configured co-rotating twin-screw extruder, the basic configuration of the extruder is: screw diameter D = 65mm, length-to-diameter ratio L / D = 52, motor power P = 120KW, screw combination front screw interval 0.2mm, Accounting for 70% of the length of the screw, the screw gap at the back section of the screw is 0.4mm, accounting for 30% of the length of the screw. The processing conditions of the extruder are as follows: the highest temperature is 350°C, the screw speed is 600rpm, the vacuum is -0.06MPa, no filter is added, and the die head pressure is ...

Embodiment 2

[0053] Same as Example 1, the difference is that the thermoplastic component is 6.2wt% in the non-dinner domestic garbage (garbage component 2) from the garbage collection station, and 5wt% of recycled industrial polymer is added before the twin-screw extruder is processed. vinyl film. The properties of the treated materials are shown in Table 1.

Embodiment 3

[0055] Same as Example 1, except that the maximum temperature of the twin-screw extruder was set to 320°C. The properties of the treated materials are shown in Table 1.

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Abstract

The invention discloses a harmless high-carbon conversion method for non-food-residue household garbage and a product thereof. The harmless high-carbon conversion method comprises the steps: utilizing a thermoplastic high polymer material with the existing weight ratio of more than 10% in the non-food-residue household garbage, or additionally adding the thermoplastic high polymer material so as to enable the weight ratio of the thermoplastic high polymer material in the non-food-residue household garbage to be more than 10%; and completing one or more of volatile matter removal, dechlorination, partial carbonization, bulk ratio increase, formation of a special hole structure and granulation in plastic processing equipment by utilizing vacuumizing, high temperature, shearing force, compression and expansion foaming effects and wrapping and bonding effects of a thermoplastic high polymer material melt in the presence or absence of auxiliaries, and thus obtaining a high-carbon-content solid material. The invention also provides an application of the high-carbon-content solid material as a high-calorific-value fuel or used in a coal chemical process to be gasified, liquefied and / or chemically converted into a high-added-value chemical product.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to a harmless high-carbon conversion method of non-meal domestic waste and its products and applications. Background technique [0002] Domestic garbage is a by-product of human life, which is produced in large quantities every day, and with the development of social economy and the improvement of people's living standards, the per capita production of domestic garbage is also increasing. Due to the complex composition of domestic waste, the high cost of recycling and lack of economic benefits, landfill and incineration are basically the main treatment methods. However, landfills occupy a lot of land, and there are fewer and fewer sites that can be used as landfills, and the landfilled domestic waste pollutes the environment; waste incineration is another treatment method that is widely used, but the combustion value of domestic waste It is not high, and the econom...

Claims

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Application Information

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IPC IPC(8): C10B53/07C10B57/04
CPCC10B53/07C10B57/04Y02P20/143
Inventor 雷华曹长兵
Owner 南京康发橡塑机械制造有限公司
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