Method for embedding waste plastic green oiling technology into garbage incineration

A technology for waste incineration and plastic waste, which is applied in combustion methods, waste fuels, cracking, etc., can solve the problems of low social and economic benefits, achieve low investment and operating costs, simple environmental protection facilities, and reduce dioxin production. Effect

Active Publication Date: 2020-10-09
ZHEJIANG COMY ENVIRONMENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above deficiencies in the prior art, the main purpose of the present invention is to provide a waste plastic green oily technology embedded in garbage incineration method to solve the problem of low social and economic benefits in the existing garbage incineration process

Method used

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  • Method for embedding waste plastic green oiling technology into garbage incineration
  • Method for embedding waste plastic green oiling technology into garbage incineration
  • Method for embedding waste plastic green oiling technology into garbage incineration

Examples

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Embodiment 1

[0046] Such as figure 1 As shown, the waste plastic green oilization technology of this embodiment is embedded in the garbage incineration method, including the following steps:

[0047] S1 dry garbage pretreatment unit operation: the dry garbage obtained after dry-wet separation (waste moisture content less than 15%) is conveyed through the conveyor belt 1, and large pieces of batteries, glass and stones are manually picked in the process The solid waste is removed, and then the iron lumps in the dry garbage are removed through the pipeline iron remover 2, and after being shredded by the shredder 3, it is transported into the middle section of the first pretreatment tank 5 by the screw propeller 4. Dry garbage includes waste plastics and non-plastic garbage. The waste plastics account for 42m% of the dry garbage. The waste plastics are mainly soft plastics such as plastic films and plastic packaging bags. The non-plastic garbage mainly refers to kitchen rubbish such as surpl...

Embodiment 2

[0062] Such as figure 2 As shown, the waste plastic green oilization technology embedded in the waste incineration method in this embodiment also includes the following processing steps: S1 dry waste pretreatment unit operation; S2 liquefied waste plastic cracking unit operation; and S3 non-plastic waste incineration unit operation.

[0063] Difference with embodiment 1 is that, in described step S2, also comprise the regeneration process of catalyst, it mainly comprises the following steps; Catalyst leaves catalytic cracking reactor 7 by unloading line, is collected in surge tank 16, described Steam stripping is introduced into the buffer tank 16 to remove the oil and gas carried on the catalyst; then the catalyst is transferred to the regenerator 17, and a superheated medium and an appropriate amount of air are passed into the regenerator 17 to convert the carbon deposit on the catalyst into CO 2 and H 2 0, catalyst activity can recover gradually; The catalyst after the re...

Embodiment 3

[0065] The waste plastic green oilization technology embedded in the waste incineration method of this embodiment also includes the following processing steps: S1 dry waste pretreatment unit operation; S2 liquefied waste plastic cracking unit operation; and S3 non-plastic waste incineration unit operation.

[0066] The difference from Example 1 is that in the step S3, the incinerator 9 adopts an indirect combustion method, and its operating conditions are as follows: the operating temperature is 550° C., the pressure is 0.2 MPa, and the non-plastic in the incinerator 9 Garbage is carbonized under anaerobic high-temperature conditions and converted into coke, and the coke is converted into carbon dioxide and water after combustion; the carbonization process is carried out in a mechanical grate furnace. The carbonization medium adopts superheated steam; the temperature of the superheated steam is 600°C and the pressure is 0.2MPa; in the mechanical grate furnace, the non-plastic u...

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Abstract

The invention discloses a method for embedding a waste plastic green oiling technology into garbage incineration. The method comprises the following steps that firstly, dry-wet separation is carried out on garbage, and dry garbage is fed into a pretreatment unit of a waste plastic green oiling device; the pretreatment unit liquefies waste plastic in the dry garbage, and the non-plastic garbage isseparated after being treated by liquid-solid separation equipment; and secondly, the liquefied waste plastic is fed into a cracking unit to produce products such as gasoline and diesel oil; the non-plastic garbage is still discharged into an incinerator to be incinerated, wherein the dioxin emission in the process is much lower than the standard value. According to the method for embedding the waste plastic green oiling technology into garbage incineration, waste plastic garbage is improved from the value of coal to the value of fuel oil, waste plastic garbage is not incinerated in the incinerator any more, the production amount of dioxin is quite small, the combustion temperature of the incinerator is greatly reduced, the equipment investment and the operation cost can be greatly saved,and remarkable economic and social benefits are achieved.

Description

technical field [0001] The invention belongs to the technical field of solid waste treatment, and in particular relates to a method for embedding waste plastic green oily technology into garbage incineration. Background technique [0002] Plastics are widely used in various industries, such as textile industry, home appliance industry, construction industry, automobile industry, agriculture, etc. As the consumption of plastic products continues to increase, waste plastics also continue to increase. At present, my country's waste plastics are mainly plastic films, plastic yarns and woven products, foam plastics, plastic packaging boxes and containers, daily-use plastic products, plastic bags and agricultural mulch films. [0003] Compared with metal recycling, the biggest problem with plastic recycling is that it is difficult to use machines for automatic sorting, and the process involves a lot of manpower. The repeated recycling rate of plastics is generally low, forming a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23G5/02F23G5/027F23G5/033F23G5/30F23G7/00F23G7/12C10G1/08C10G1/10C10L3/08C10L5/46
CPCF23G5/033F23G5/02F23G5/027F23G7/12F23G5/30F23G7/00C10G1/10C10G1/08C10L3/08C10L5/46C10G2300/1003Y02E50/30Y02E50/10C10G1/002C10G11/20C10G2400/02C10G2400/04F23G2201/60F23G2209/28
Inventor 辛本恩叶宗君曹卫民
Owner ZHEJIANG COMY ENVIRONMENT TECH CO LTD
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