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Solid waste pretreatment device and technology

A pretreatment device and pretreatment technology, applied in the direction of grain treatment, etc., can solve problems such as difficult treatment, treatment limitation, and difficult treatment of polluted soil, and achieve the effect of large conveying capacity, reduced input cost, and good crushing effect

Active Publication Date: 2018-08-03
SHANDONG CHAMBROAD EQUIP MFG INSTALLATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to better solve the above problems, the present invention provides a solid waste pretreatment device and process for the production of ceramsite by reusing solid waste. Through the device of the present invention, solid waste with different water contents such as polluted soil and Yellow River sand After treatment, it becomes the raw material for making ceramsite, which not only solves the difficult problem of solid waste such as polluted soil and yellow river sand, but also improves the utilization rate of solid waste, making it reach the ideal use standard, and adding it to the production of ceramsite Can produce lightweight ceramsite that meets the standard requirements
The invention solves the problems that the contaminated soil is difficult to deal with and the treatment is limited by various factors

Method used

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  • Solid waste pretreatment device and technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] The pretreatment process of polluted soil with a water content of about 40%, the specific steps are as follows:

[0055] 1) Contaminated soil is transported to the water-containing solid waste buffer warehouse for sealed storage;

[0056] 2) Stirring and mixing: the contaminated soil is discharged from the silo through the scraper conveyor and transported to the twin-shaft mixer. At the same time, a certain proportion of fly ash is transported to the twin-shaft mixer for physical precipitation to make the mixed material moisture drop below 10%;

[0057] 3) Crushing: The mixed material is conveyed to the chain crusher through a large-angle belt for crushing large pieces of material, and the material is broken to less than 2mm;

[0058] 4) Screening: The crushed material is conveyed by a large-inclination belt and sent to the tube screening machine for screening. The mixed garbage and bulk materials in the material are screened out to avoid entering the next step;

[00...

Embodiment 2

[0062] Pretreatment of waste sludge for sewage treatment with a water content of 70%:

[0063] 1) Transport the sludge to the water-containing solid waste storage bin for sealed storage;

[0064] 2) Stirring and mixing: the sludge is unloaded from the silo through the scraper conveyor and transported to the twin-shaft mixer, and at the same time, a certain proportion of fly ash is transported to the twin-shaft mixer for physical precipitation to make the mixed material moisture drop below 10%;

[0065] 3) Crushing: The mixed material is conveyed to the chain crusher through a large-angle belt for crushing large pieces of material, and the material is broken to less than 2mm;

[0066] 4) Screening: The crushed material is transported by a belt with a large inclination angle and transported to the tube screening machine for screening;

[0067] 5) Metering: The screened material is transported to the bucket elevator through the belt, and the material is lifted to the transition...

Embodiment 3

[0070] Contaminated soil pretreatment process with a water content of 15%, the specific steps are as follows:

[0071] 1) Contaminated soil is transported to the water-containing solid waste buffer warehouse for sealed storage;

[0072] 2) Stirring and mixing: the contaminated soil is discharged from the silo through the scraper conveyor and transported to the twin-shaft mixer. At the same time, a certain proportion of fly ash is transported to the twin-shaft mixer for physical precipitation to make the mixed material moisture drop below 10%;

[0073] 3) Crushing: The mixed material is conveyed to the chain crusher through a large-angle belt for crushing large pieces of material, and the material is broken to less than 2mm;

[0074] 4) Screening: The crushed material is transported to the tube screening machine for screening through a large-inclination belt conveyor, and the mixed garbage and bulk materials in the material are screened out to avoid entering the next step;

...

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Abstract

The invention relates to the field of solid waste treatment and recycling, and mainly aims at a technology for manufacturing ceramisite through recycling of solid waste. The invention provides a solidwaste pretreatment device and technology. Through the device provided by the invention, solid wastes, such as contaminated soil and Yellow River sand, are treated, and then used as raw materials formanufacturing ceramisite, not only the problem that the solid wastes, such as the contaminated soil and Yellow River sand, are hard to treat is solved, but also the availability of the solid wastes isimproved, so that the solid wastes meet the ideal using standards; and the problems that the solid wastes, such as the contaminated soil and Yellow River sand, are hard to treat and limited by different factors during treatment are solved.

Description

technical field [0001] The invention relates to the field of solid waste treatment and reuse, in particular to a solid waste pretreatment device and process. Background technique [0002] With the prosperity of the construction industry, the reconstruction of abandoned factories, and the start of soil pollution retreatment projects, a large amount of polluted soil will be produced. These soils are industrial solid wastes, which have strict requirements for storage and placement, and are difficult to handle. Now it is mainly dealt with by landfill, physical restoration, chemical restoration and other methods. But either way will be limited. For example, landfill requires a standard landfill, and it is difficult to degrade for many years; the scope of physical restoration is relatively small, and the physical characteristics of pollutants and soil particles are required to be significantly different, especially when there are a large proportion of clay and silt in the soil D...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C21/00B02C23/08
CPCB02C21/00B02C23/08Y02P40/60
Inventor 孙国安李增胜贵来全董乐乐
Owner SHANDONG CHAMBROAD EQUIP MFG INSTALLATION CO LTD
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