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Recycling and treatment process and device for waste ceramic by crushing and grinding and pre-mixed concrete

A technology for waste ceramics and processing technology, applied in the field of ready-mixed concrete, can solve the problems of limited number of recycling and environmental pollution of new waste, and achieve the effect of promoting recycling

Active Publication Date: 2014-03-05
GUANGDONG DONGBAO GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing recycling methods are restricted by many factors such as the difficulty of technical implementation, the sales ability after making products, and the geographical limitations of products. The amount of recycling is limited every year, which is not enough to solve the problems caused by new waste Environmental Pollution

Method used

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  • Recycling and treatment process and device for waste ceramic by crushing and grinding and pre-mixed concrete
  • Recycling and treatment process and device for waste ceramic by crushing and grinding and pre-mixed concrete
  • Recycling and treatment process and device for waste ceramic by crushing and grinding and pre-mixed concrete

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] refer to figure 1 Shown is a schematic flow chart of the waste ceramics crushing, grinding, recycling and processing process of the present invention.

[0036] Use moving tools to transport the waste ceramics from the stockyard to the storage hopper on the working site, and then feed them into the primary crusher for primary crushing S01 by the feeding device. Feed requirements, such as particle size <400mm, and metal impurities should be removed by iron remover.

[0037] Below the output port of the coarse crushing machine, use a conveyor to send the coarsely crushed waste porcelain to the fine particle crusher for fine crushing S02 to form a mixture of sand and coarse powder.

[0038] Pass the obtained mixture of sand and coarse powder through the first-stage sieve S03, so that the sand powder with a nominal particle size ≤ 4mm passes through the sieve, and the unusable sand with a nominal particle size > 4mm is re-input into the fine particle crusher for re-crushing...

Embodiment 2

[0054] The embodiment of the present invention discloses a method for making ready-mixed concrete with a concrete strength grade of C25 by using the qualified sand material and micropowder generated by the waste ceramic crushing, grinding, recycling and utilization process above, and regenerated sand and micropowder replace part of the natural sand and cement gelling agent respectively. The mix ratio of ready-mixed concrete is (unit: kg / m 3 ):

[0055] Cement gelling agent: gravel: sand: water: admixture = 339 (cement 206 + fly ash 72 + micropowder 61):

[0056] 1086: 770 (river sand 385 + recycled sand 385): 175: 6.6 = 1: 3.20: 2.27: 0.52: 0.019

[0057] Among them: recycled sand: total weight of sand = 385: 770 = 0.5: 1

[0058] Micro powder: total weight of gelling agent = 61: 339 = 0.18: 1

Embodiment 3

[0060] The embodiment of the present invention discloses a method for making ready-mixed concrete with a concrete strength grade of C30 by using the qualified sand material and micropowder generated by the waste ceramic crushing, grinding, recycling and utilization process above, and regenerated sand and micropowder replace part of the natural sand and cement gelling agent respectively. The mix ratio of ready-mixed concrete is (unit: kg / m 3 ):

[0061] Cement gelling agent: gravel: sand: water: admixture = 343 (cement 230 + fly ash 78 + micropowder 35):

[0062] 1184: 699 (river sand 559 + recycled sand 140): 168: 6.52 = 1: 3.45: 2.04: 0.49: 0.019

[0063] Among them: recycled sand: total weight of sand = 140: 699 = 0.20: 1

[0064] Micropowder: total weight of gelling agent = 35:343 = 0.102:1.

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Abstract

The embodiment of the invention discloses a recycling and treatment process for waste ceramic by crushing and grinding. The recycling and treatment process comprises the following steps: inputting the waste ceramic into a rough-crushing crusher to be roughly crushed; further finely crushing the obtained roughly-crushed waste ceramic by a fine grain crusher; carrying out first-grade sieving on the obtained finely-crushed waste ceramic to obtain sand powder with a nominal grain diameter which is less than or equal to 4mm; finely crushing the finely-crushed waste ceramic which are remained on a sieve; carrying out second-grade sieving on the sand powder to obtain qualified regenerated sand; and grinding the powder with the nominal grain diameter which is less than 0.315mm by a powder grinder to obtain micro-powder with the specific surface area which is more than or equal to 400m<2> / kg. The embodiment of the invention further discloses a recycling and treatment device for the waste ceramic by crushing and grinding and pre-mixed concrete prepared by using the regenerated material. According to the recycling and treatment process for the waste ceramic by crushing and grinding, the waste ceramic is processed into the regenerated sand and the micro-powder and the regenerated sand and the micro-powder are used for replacing one part of natural sand and a cement gelatinizing agent to prepare the pre-mixed concrete; the strength meets the requirements of technical specifications; a sintering link for producing the ceramic in an existing recycling method is avoided and fuel is not used; carbon emission at a sintering phase is not proceeded so that the recycling and treatment process is low-carbon and environment-friendly, and the regeneration and reutilization of resources are promoted.

Description

technical field [0001] The invention relates to a process for recycling waste ceramics, in particular to a waste ceramics crushing and recycling process, a processing device and ready-mixed concrete made from processed recycled materials. Background technique [0002] China is a big country producing ceramics. In 2011, the national output of daily-use ceramics exceeded 30 billion pieces, building ceramics (mainly ceramic tiles) reached 9 billion square meters, and sanitary ceramics output reached 200 million pieces. There was a slight decrease in 2012. If converted into weight, it is equivalent to about 3 million tons of daily-use ceramics, about 135 million tons of ceramic tiles, and about 3 million tons of sanitary porcelain. In the process of ceramic production, it is estimated that nearly 10 million tons of waste ceramics are produced every year, causing great pollution to the environment. Recycling waste ceramics has considerable social benefits. [0003] At present...

Claims

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Application Information

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IPC IPC(8): C04B18/16C04B7/24C04B7/38
CPCY02P40/10Y02P40/121Y02W30/91
Inventor 詹树荣
Owner GUANGDONG DONGBAO GRP
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