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Kitchen waste three-grade separation pretreatment process

A technology for kitchen waste and pretreatment, which is used in the removal of solid waste, chemical instruments and methods, transportation and packaging, etc., can solve the problems of great damage to subsequent process equipment and high impurity content, and achieve a clean and tidy production environment. High impurity removal rate and fine sorting effect

Inactive Publication Date: 2017-05-10
敖建瑜
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the existing kitchen waste pretreatment process, it is not possible to separate out non-magnetic impurities with high hardness and similar to stainless steel tableware that will cause great damage to subsequent process equipment and cannot be selected by magnetic separation; and the pretreatment The slurry prepared by the process has high impurity content

Method used

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  • Kitchen waste three-grade separation pretreatment process
  • Kitchen waste three-grade separation pretreatment process

Examples

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Embodiment

[0028] Example: refer to Figure 1-Figure 4 , a three-stage separation and pretreatment process for kitchen waste, including the following steps:

[0029] (1) Receiving

[0030] The kitchen waste collected by Sinotrans is directly poured into the material receiving device 2, and the preliminary solid-liquid separation is realized through the extrusion and drainage of the material receiving device 2, and the solid phase is transported to the manual sorting equipment through the auger of the material receiving device 2 4 goes up; The material receiving device 2 has the functions of material storage, odor prevention, solid-liquid separation, and material transportation. The solid-liquid separation can initially separate 50% of the water in the kitchen waste, and use a screw conveyor to carry out the material for the subsequent process. Transport creates conditions.

[0031] (2) Manual sorting

[0032] A closed manual sorting room is built for manual sorting, and it is equippe...

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Abstract

The invention discloses a kitchen waste three-grade separation pretreatment process. Kitchen waste is poured in a receiving device to primarily realize solid-liquid separation; recoverable impurities and flexible impurities which cannot be recovered but generate adverse effects on subsequent processes are manually separated; magnetic substances in the kitchen waste are separated out by a magnetic force effect; magnetically separated materials are conveyed to a primary crusher by a first-grade spiral; the kitchen waste is crushed below a fixed size by a shearing crusher; crushed materials are conveyed to a large-substance separator by a second-grade spiral; large substances are separated by a steam flushing heating mode; large impurities are separated out, and are conveyed to the external through a spiral for landfilling or incineration; materials not reserved on a separator screen are conveyed to a separation pulping machine by a third-grade spiral; and the kitchen waste is crushed to prepare pulp below 10 mm by separation pulping. The pulp obtained by treatment through the pretreatment process has the characteristics of few impurities, low loss rate of the organic matters and small solid particles.

Description

technical field [0001] The invention relates to a three-stage sorting pretreatment process for kitchen waste. Background technique [0002] In the existing kitchen waste pretreatment process, non-magnetic impurities such as stainless steel tableware, which will cause great damage to subsequent process equipment and cannot be selected by magnetic separation, can not be separated out; and the pretreatment The slurry prepared by the process has a high impurity content. Contents of the invention [0003] The purpose of the present invention is to provide a three-stage sorting and pretreatment process for kitchen waste, which can sort out impurities that will greatly damage subsequent process equipment, and can provide slurry with low impurity content for subsequent treatment processes. [0004] In order to solve the above-mentioned technical problems, the purpose of the present invention is achieved in this way: the three-stage separation and pretreatment process of kitchen w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00B09B5/00
CPCB09B5/00B09B3/80
Inventor 陈益兴陈鑫毛银华
Owner 敖建瑜
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