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Method for preparing ceramsites and ceramsites prepared by method

A technology of ceramsite and granules, which is applied in the direction of sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problem of lack of dust treatment methods, etc., and achieve equipment operation methods that are simple and easy to learn, with wide sources and wide applicability Effect

Inactive Publication Date: 2017-04-26
BEIJING RENCHUANG CASTING +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, domestic foundries are regenerating waste sand, but there is no effective treatment method for the dust generated in the production process, which cannot completely solve the problem of industrial waste utilization.

Method used

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  • Method for preparing ceramsites and ceramsites prepared by method
  • Method for preparing ceramsites and ceramsites prepared by method
  • Method for preparing ceramsites and ceramsites prepared by method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Convey 100 parts by weight of regenerated ash to the mixer with a screw feeder, control the amount added through the conveying time, then add 30 parts by weight of cement and 3 parts by weight of silica fume by gas transportation, and then add the material by automatic weighing System control, adding 0.15 parts by weight of ethylene-vinyl acetate copolymer redispersible rubber powder, 1.2 parts by weight of bentonite, 0.3 parts by weight of polyvinyl alcohol and calcium chloride of 0.06 parts by weight to the mixer, mixing 1- After 2 minutes, add 0.03 parts by weight of sodium lignosulfonate water reducer (solid content is 40% by weight) in the form of spraying, then add 10% by weight of water of the total weight of the above-mentioned raw materials and external admixtures, and mix evenly to obtain The state of the mixed material is that it can be kneaded into a block by hand, and it can be scattered by a slight touch. The mixed material is transported to the silo by the...

Embodiment 2

[0044] Convey 100 parts by weight of regenerated ash to the mixer with a screw feeder, control the amount added by the conveying time, then add 50 parts by weight of cement and 8 parts by weight of silica fume by gas transportation, and then add the material by automatic weighing System control, sequentially add 0.25 parts by weight of ethylene-vinyl chloride-vinyl laurate copolymer redispersible rubber powder, 2.5 parts by weight of coal fly ash, 0.5 parts by weight of polyvinyl alcohol and 0.3 parts by weight of chlorinated Calcium, after mixing for 1-2min, add 0.8 parts by weight of magnesium lignosulfonate superplasticizer (solid content is 40% by weight) in the form of spraying, and then add 5% by weight of the total weight of the above-mentioned raw materials and external admixtures. water, and mix evenly to obtain the mixed material, which can be kneaded into lumps by hand, and can be dispersed with a little touch. The mixed material is transported to the silo by the buc...

Embodiment 3

[0047] Convey 100 parts by weight of regenerated ash to the mixer with a screw feeder, control the amount added by the conveying time, then add 20 parts by weight of cement and 1 part by weight of silica fume by gas transportation, and then add the material by automatic weighing System control, add 0.25 parts by weight of vinyl acetate homopolymer redispersible rubber powder, 0.02 parts by weight of white carbon black, 0.1 parts by weight of polyvinyl alcohol and calcium chloride of 0.02 parts by weight in the mixer, mix 1 After -2min, add 0.02 weight part of naphthalenesulfonate formaldehyde polymer water reducer (solid content is 40% by weight) in the form of spraying, then add the water of 10% by weight of the total weight of above-mentioned raw materials and external admixture, mix Evenly, the mixed material can be obtained by kneading it by hand, and it can be scattered by a little touch. The mixed material is transported to the silo by the bucket elevator.

[0048] The d...

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Abstract

The invention relates to a method for preparing ceramsites and the ceramsites prepared by the method. The method comprises the following steps of (a), uniformly mixing regenerated ash, cement, selectable silica fume, a selectable additive with water to obtain a mixed material, wherein 100 parts by weight of the regenerated ash is taken as a reference, the using amount of the cement is 20 to 50 parts by weight, the using amount of the silica fume is 0 to 10 parts by weight, and the using amount of the additive is 0 to 6 parts by weight, and 100 parts by weight of the mixed material is taken as a reference, the using amount of the water is 5 to 10 parts by weight; and (b), granulating the mixed material obtained in the step (a) in a turntable granulating machine for granulating. The method is simple in process, low in cost and high in production efficiency; the prepared ceramsites are high in performance, and can be applied to multiple fields of environmental protection, chemical engineering, energy, metallurgy and the like.

Description

technical field [0001] The present disclosure relates to a method for preparing ceramsite and ceramsite prepared by the method. Background technique [0002] Ceramsite is a lightweight aggregate produced by foaming in a rotary kiln. It has a spherical shape, smooth and hard surface, honeycomb inside, low density, low thermal conductivity, high strength, and can be widely used in building materials, gardening, food and beverage, refractory insulation materials, chemicals, petroleum and other industries . [0003] At present, ceramsite is mainly processed and granulated from clay, shale and sludge as the main raw materials, and then sintered or expanded at high temperature. Clay ceramsite is mainly obtained from cultivated land during production, and shale ceramsite needs to dig mountains to obtain rocks during production. These two methods of obtaining raw materials for ceramsite will destroy the ecological environment, which is not in line with the sustainable development ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B18/04
CPCY02W30/91C04B28/00C04B18/0481C04B18/146C04B24/2623C04B14/104C04B22/124C04B24/18C04B22/002C04B24/2688C04B18/08C04B14/06C04B24/226C04B22/02
Inventor 秦申二胡胜利尹海军李卓情杨志永
Owner BEIJING RENCHUANG CASTING
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