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Method for treating inorganic solid waste and application

A solid waste and treatment method technology, applied in the application field of recycled materials, can solve the problems of low sorting efficiency and low label, and achieve the effect of high quality, high production efficiency and stable performance

Inactive Publication Date: 2004-03-10
王剑
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are also certain defects, such as manual sorting, particle size crushing, and impurity removal processes, which have low sorting efficiency, and the mixed aggregate that is removed from impurities at one time can only be used as low-quality finished materials or low-grade recycled concrete.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Recycled aggregate processed from waste concrete:

[0024] Take recycled aggregate 1239 / 4.13Kg, sand 531 / 1.77Kg, cement 300 / 1Kg, water 230 / 0.76Kg, the aggregate size is: 0.5-40mm, sand rate: 30%, sand: medium sand, cement : Slag 425 # , water: tap water; the mixing method is to mix the above-mentioned raw materials and then add water to mix. Its label is C25, and its compressive strength is 22.0MPa for 7 days and 28.4MPa for 28 days.

Embodiment 2

[0026] Recycled aggregate processed from waste bricks:

[0027] Take recycled aggregate 1274 / 5.31Kg, sand 656 / 2.73Kg, cement 240 / 1Kg, water 310 / 1.29Kg, the aggregate size is: 0.5-40mm, the sand rate is 34%, sand: medium sand, cement: Slag 425 # , water: tap water; Its mixing method is identical with embodiment 1. Its label is CL10, and its compressive strength is 7.4MPa for 7 days and 13.2MPa for 28 days.

[0028] Above-mentioned embodiment 1, 2 is a mixing mode. The relative water consumption is slightly larger.

Embodiment 3

[0030] Take cement, fly ash, sand, recycled aggregate, water, and reducing agent raw materials, and their weight ratios are 1-0.7: 0-0.3: 1.8: 4.2: 0.8-0.5: 0-0.01; the mixing method is: first It is made by mixing cement, fly ash, sand and water evenly, and then adding recycled aggregate and reducing agent.

[0031] Embodiment 3 belongs to the secondary mixing method. The method can save water consumption, and the obtained recycled concrete has high strength and good uniformity.

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Abstract

A process for reclaiming the inorganic solid waste (waste silicon, waste concrete blocks, coal gangue, and slags) includes crushing to less than 400 mm for granularity, removing impurities, breaking to less than 80 mm for granularity to obtain the reclaimed aggregate, classifying, magnetic dressing, flushing dressing, and floatation. Said reclained aggregate can be used for road bed or concrete.

Description

technical field [0001] The invention relates to a processing method for processing construction waste, waste rocks, coal gangue, blast furnace slag and other agglomerated wastes into recycled materials. [0002] The invention also relates to the use of recycled material for processing. Background technique [0003] With the development of urban construction, more and more construction waste is discharged from the demolition of urban buildings, which not only occupies land, pollutes the environment, but also causes waste of resources. Therefore, in order to solve this problem, as the Chinese Patent Publication No. CN1298772A discloses a kind of invention patent for the processing and recycling method of construction waste. Its processing process is to manually separate the waste bricks and waste concrete blocks, and then crush them to a particle size of less than 200mm, and remove impurities such as metal objects and wood blocks; and then mechanically crush them to a particl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00
Inventor 王健
Owner 王剑
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