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High-strength ceramsite prepared by utilizing Yellow River silt and sludge as adhesive and preparation method of high-strength ceramsite

A technology of binder preparation and Yellow River silt, applied in the field of materials, can solve the problem of not being put into industrial production, etc., and achieve the effects of optimized treatment, low bulk density, and saving clay resources

Active Publication Date: 2017-12-12
山东京泰再生资源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the technology of using solid waste to produce ceramsite came into being, such as using fly ash, tailings sand and other resources, but at present it only stays in research and has not been put into industrial production.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A high-strength ceramsite prepared by using Yellow River silt and sludge as a binder. The raw materials are calculated by weight percentage, and the raw material ratio is: 15% of Yellow River silt, 5% of sludge, and 80% of fly ash.

[0027] Among them, the water content of the Yellow River silt is less than 3%, and the water content of the sludge is less than 2%.

[0028] The preparation method of this high-strength ceramsite, concrete steps are as follows:

[0029] 1) Raw material processing:

[0030] Yellow River silt: After sieving and purification to remove large garbage, use a low-temperature drying rotary kiln to dry until the water content of the Yellow River silt is less than 3%, and then enter a dry ball mill for grinding. After grinding, the fineness of the Yellow River silt is 250 and then stored in the Yellow River silt storage tank through screw conveying for standby;

[0031] Sludge: Use the waste heat of the kiln for pre-drying. After the water content ...

Embodiment 2

[0041] A high-strength ceramsite prepared by using the Yellow River silt and sludge as a binder, in terms of weight percentage, its raw material ratio is: 15% of Yellow River silt, 15% of sludge, and 70% of fly ash;

[0042] Among them, the water content of the Yellow River silt is less than 3%, and the water content of the sludge is less than 2%.

[0043] The preparation method of this high-strength ceramsite, concrete steps are as follows:

[0044] 1) Raw material processing:

[0045]Yellow River silt: After sieving and purification, large garbage and debris are removed, dried in a low-temperature drying rotary kiln until the water content of the Yellow River silt is less than 3%, and then put into a dry ball mill for grinding. After grinding, the fineness of the Yellow River silt is 200 and then stored in the Yellow River silt storage tank through screw conveying for standby;

[0046] Sludge: remove sundries, pre-dry using the waste heat of the kiln. After the water conte...

Embodiment 3

[0056] A high-strength ceramsite prepared by using the Yellow River silt and sludge as a binder. The ratio of raw materials is as follows: 25% of the Yellow River silt, 20% of sludge, and 55% of fly ash.

[0057] Among them, the water content of the Yellow River silt is less than 3%, and the water content of the sludge is less than 2%.

[0058] The preparation method of this high-strength ceramsite, concrete steps are as follows:

[0059] 1) Raw material processing:

[0060] Yellow River silt: After sieving and purification, large garbage and debris are removed, dried in a low-temperature drying rotary kiln until the water content of the Yellow River silt is less than 3%, and then put into a dry ball mill for grinding. After grinding, the fineness of the Yellow River silt is 200 and then stored in the Yellow River silt storage tank through screw conveying for standby;

[0061] Sludge: use the waste heat of the kiln for pre-drying. After the water content of the sludge is low...

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Abstract

The invention discloses a method for preparing high-strength ceramsite prepared by utilizing Yellow River silt and sludge as an adhesive. The method comprises the following steps: by taking Yellow River silt, sludge and fly ash as main raw materials, mixing the various raw materials in proportions, granulating, drying, roasting, and cooling, thereby obtaining the high-strength ceramsite. According to the method disclosed by the invention, the high-strength aggregate which is high in physical strength, high in chemical stability, low in bulk density and large in specific surface area and can be applied to the fields of buildings, water treatment, garden art and the like is obtained, and the ceramsite production cost is greatly reduced. Meanwhile, the consumption of scarce resources is reduced, the treatment problem of local Yellow River silt and industrial solid wastes is solved, and the high-strength ceramsite has excellent market prospects.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to a high-strength ceramsite prepared by using the Yellow River silt and sludge as a binder and a preparation method thereof. technical background [0002] Ceramsite is a kind of light aggregate produced by granulating and roasting inorganic materials as the main raw material. The outer surface of ceramsite has a waterproof and hard glaze layer shell, and the inside has a closed microporous structure. According to different functions of ceramsite, ceramsite can be used as building material as light aggregate; in water treatment industry as water treatment filter material; in garden industry as substrate for soilless cultivation. [0003] At present, clay ceramsite and shale ceramsite mainly use clay and shale as raw materials on the market. With the limited utilization of clay, shale and other resources, coupled with the high energy consumption of ceramsite production, the produ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/06C04B33/132C04B33/135
CPCC04B33/1321C04B33/1352C04B38/0665C04B2235/6567C04B2235/661C04B2235/77C04B2235/96C04B38/009C04B38/0067Y02P40/60
Inventor 马韵升史庆苓胡树峰姚刚包英王明军朱庆强王亮亮
Owner 山东京泰再生资源有限公司
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