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Method for disassembling and recycling waste refrigerators

A recycling and refrigerator technology, applied in waste treatment, electronic waste recycling, recycling technology, etc., can solve the problems of reduced original value, high energy consumption, high investment and operating costs, so as to increase added value and reduce operating costs , the effect of reducing the difficulty of processing

Inactive Publication Date: 2010-03-03
刘景洋
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The technical route of this process has high investment and operating costs. After the treatment, the metal in the refrigerator is broken into debris, which can only be used as scrap iron for steelmaking, and the original value is reduced.
In order to realize the complete release of the foaming agent during the crushing process, the polyurethane insulation material needs to be crushed into very fine particles (usually less than 4mm). Since the refrigerator is broken as a whole, the energy consumption is very high

Method used

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  • Method for disassembling and recycling waste refrigerators

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Embodiment

[0020] The method for dismantling and recycling waste refrigerators of the present invention comprises the following steps:

[0021] a. First, drill a hole on the pipeline connected to the compressor, and use a conventional refrigerant recovery device (such as a refrigerant recovery machine, model RG5410AE) to recover the refrigerant CFC-12 in the compressor, and recover the refrigerant CFC-12;

[0022] b. Remove the compressor, condensing system, inner partition, tray, and light source accessories from the refrigerator by manual disassembly to obtain directly usable materials and reusable parts; disassembled materials that cannot be directly used manual sorting for reuse or processing;

[0023] c. Referring to Fig. 1, in the closed system (the closed system can be a closed workshop), a sampling cutting tool (such as a saber saw, model GFZ 600E, produced by Xiyu Electromechanical Industrial Products Group) first cuts off the top plate 4 of the box body, and the refrigerator R...

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Abstract

The invention relates to a method for disassembling and recycling waste refrigerators. The method comprises the following steps: recycling refrigerant CFC-12 from compressors by a secondary refrigerant recovery device, then disassembling the waste refrigerators to realize integral recovery of side plates and back plates of the waste refrigerators and steel plate of refrigerator doors, treating rigid polyurethane foam respectively to reduce energy consumption of breaking and heating the rigid polyurethane foam to recover the CFC-11 so as to decrease discharge of the CFC-11 and further realize purposes of energy conservation and environmental protection.

Description

technical field [0001] The invention relates to the field of environmental protection technology aimed at recycling materials in waste refrigerators, in particular to a method for dismantling and recycling waste refrigerators. Background technique [0002] Since waste refrigerators contain ODS (ozone depleting substances), their dismantling and disposal have attracted widespread attention. At present, domestic and foreign waste refrigerators are dismantled by manual dismantling of refrigeration devices and inner partitions, and then the whole is sealed and broken. There are two purposes of airtight crushing: one is to realize the separation of metal and polyurethane rigid foam (refrigerator insulation material) through crushing, metal scraps are recycled for steelmaking, and polyurethane incineration is used to recover heat energy; the other is to crush polyurethane rigid foam The foaming agent (mainly CFC-11) in the foam is released, and the foaming agent is recovered thro...

Claims

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Application Information

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IPC IPC(8): B09B3/00
CPCY02W30/20Y02W30/82
Inventor 刘景洋郭玉文乔琦
Owner 刘景洋
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