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Method for manufacturing artificial gravels by utilizing casting fly ash and prepared artificial gravels
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A technology of man-made, pebbles, applied in the field of waste recycling
Pending Publication Date: 2021-04-30
柳州柳晶环保科技有限公司
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Problems solved by technology
[0004] In order to solve the above problems, the present invention provides a method of using foundry dust to manufacture artificial stones, which not only provides an artificial stone to alleviate the current shortage of natural stones but also improves the utilization value of foundry dust
Method used
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Embodiment 1
[0030] A method for manufacturing artificial stones by using foundry dust, comprising the steps of:
[0031] (1) Add 60kg of foundry dust and 8kg of commercially available ordinary Portland cement with a label of 42.5 into the mixer and mix evenly to obtain mixture A;
[0032] (2) Add mixture A to a blender, add 6kg of water, and stir evenly to obtain mixture B;
[0033] (3) Put the mixture B into a steel drum, add a pressure head to pressurize, the mixture B is pressed into a 4cm sheet in a static press, and the strength of the pressure head is 1000t / m 2 ;
[0034] (4) Add water to the flakes for 7 days and then break them into particles, and screen the particles with a particle size of 0.1-4 cm to obtain artificial stones.
Embodiment 2
[0036] A method for manufacturing artificial stones by using foundry dust, comprising the steps of:
[0037] (1) Add 60kg of foundry dust and 12kg of commercially available ordinary Portland cement with a label of 42.5 into the mixer and mix uniformly to obtain mixture A;
[0038] (2) Add mixture A to a blender, add 7kg of water, and stir evenly to obtain mixture B;
[0039] (3) Put the mixture B into a steel drum, add a pressure head to pressurize, and press it into a 4cm sheet in a static press, and the strength of the pressure head is 1000t / m 2 ;
[0040] (4) Add water to the flakes for 7 days and then break them into particles, and screen the particles with a particle size of 0.1-4 cm to obtain artificial stones.
Embodiment 3
[0042] A method for manufacturing artificial stones by using foundry dust, comprising the steps of:
[0043] (1) Add 60kg of foundry dust and 15kg of commercially available ordinary Portland cement with a label of 42.5 into the mixer and mix uniformly to obtain mixture A;
[0044] (2) Add mixture A to a blender, add 9kg of water, and stir evenly to obtain mixture B;
[0045] (3) Put the mixture B into a steel drum, add a pressure head to pressurize, and press it into a 4cm sheet in a static press, and the strength of the pressure head is 1000t / m 2 ;
[0046] (4) Adding water to the slices for 7 days, breaking them into particles, and screening the particles with a particle size of 0.1-4 cm to obtain artificial stones.
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Abstract
The invention belongs to the technical field of waste recycling, and particularly relates to a method for manufacturing artificial gravels by utilizing castingfly ash and the artificial gravels. The invention relates to a method for manufacturing artificial gravels by using castingfly ash, which comprises the following steps: (1) uniformly mixing the castingfly ash with cement to obtain a mixture A; (2) adding the mixture A into a stirrer, adding water, and uniformly stirring to obtain a mixture B; (3) putting the mixture B into a mold, pressurizing, and pressing into a sheet; and (4) adding water into the slices for maintenance, crushing the slices into particles, and screening the particles to obtain the artificial gravels. According to the method for recycling the casting fly ash, the casting fly ash is used for manufacturing the artificial gravel, the cylinder compressive strength of the prepared artificial gravel can reach 8 Mpa or above, and the density of the prepared artificial gravel is 1450-1600 kg / m3; therefore, the artificial gravel can replace natural gravel, wherein the utilization value of the casting fly ash is greatly improved, and the cost is reduced. Meanwhile, the problem of shortage of natural gravels is also relieved.
Description
technical field [0001] The invention belongs to the technical field of waste recycling, and in particular relates to a method for manufacturing artificial stones by using foundry dedusting ash and the prepared artificial stones. Background technique [0002] At present, most of the stones used in the construction industry come from mining, but the large-scale mining of mines will seriously affect the normal ecological cycle of the natural environment. In order to prevent environmental damage and avoid resource depletion, mining has gradually been standardized. It is increasingly in short supply, making it difficult to meet market demands. Therefore developing a kind of artificial pebble to substitute natural stone is very important. [0003] At present, the treatment of casting dust ash is still in its infancy in the prior art, and most of the dust ash is still landfilled as solid waste or handed over to brick factories for treatment, with low utilization value and low adde...
Claims
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Application Information
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