A method for modifying raw soil materials using cereal distiller's residue

A technology for distiller's grains residues and raw soil, which is applied in the field of using grain distiller's grain residues to modify raw soil materials, can solve problems such as environmental pollution, easy spoilage, high acidity, etc., to reduce environmental pollution, improve various properties, and increase strength. Effect

Active Publication Date: 2017-07-07
TIANJIN CHENGJIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Grain distiller's grains, as a by-product of ethanol production, have high acidity and are particularly prone to spoilage, leading to environmental pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Dry, grind, and sieve wheat distiller's grains to make the fiber length 5-8mm; mix 5400g of Northwest loess, 540g of cement and 54g of processed wheat distiller's grains evenly to obtain a mixture; weigh 27g of polycarboxylate superplasticizer , 27g of sodium silicate, and it was added into 1080g of water, and mixed uniformly to obtain a mixed solution; the prepared mixed solution was added to the mixture, and stirred vigorously; After mud, extrusion molding. The formed block is naturally dried and cured for 28 days to obtain the finished product. The obtained raw soil block has a flexural strength of 2.2MPa, a compressive strength of 8.9MPa, and a softening coefficient of 0.74.

Embodiment 2

[0031] Dry, grind, and sieve wheat distiller's grains and sorghum distiller's grains so that the fiber length is 5-8mm; mix 5400g of northwest loess, 540g of water glass, 540g of cement, 81g of processed wheat distiller's grains, and 81g of processed sorghum distiller's grains , to obtain the mixture; Weigh 0.054g of borax, and add it into 1620g of water, mix well to obtain a mixture; add the prepared mixture into the mixture, stir vigorously; send the wet mixture into a vacuum After the mud is practiced in the mud refining machine, it is extruded into shape. The formed block is naturally dried and cured for 28 days to obtain the finished product. The obtained raw soil block has a flexural strength of 3.1 MPa, a compressive strength of 12.2 MPa, and a softening coefficient of 0.81.

Embodiment 3

[0035] Dry, grind, and sieve rice distiller's grains to make the fiber length 5-8mm; mix 5400g of northwest loess, 540g of cement, 135g of lime, 135g of building gypsum and 81g of processed wheat distiller's grains to obtain a mixture; weigh 27g polycarboxylate superplasticizer, 13.5g sodium silicate, 0.054g borax, and it is added in the water of 1296g, mixes evenly to obtain mixed solution; Add the prepared mixed solution in the mixed material, stir vigorously; wet mix The final mixture is sent to the vacuum mud refining machine for mud refining, and then extruded into shape. The formed block is naturally dried and cured for 28 days to obtain the finished product. The obtained raw soil block has a flexural strength of 2.4MPa, a compressive strength of 9.8MPa, and a softening coefficient of 0.79.

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Abstract

The invention relates to the field of building materials and new materials for environmental protection and energy saving, in particular to a method for modifying raw soil materials using grain distiller's grains, which comprises the following steps: (1) drying, grinding and sieving the grain distiller's grains; Raw soil, inorganic gelling material and the cereal distiller's grains obtained in the step (1) are weighed and mixed uniformly in proportion; (3) water and additives are weighed according to a certain proportion and mixed uniformly; (4) the Add the mixed solution prepared in the step (3) into the compound prepared in the step (2), stir vigorously evenly, send the compound into a vacuum mud mill for mud refining, and then extrude it; (5) The raw soil material extruded in the step (4) was naturally dried and cured for 28 days to obtain the finished product. The invention can make full use of the potential resource of grain distiller's grains, reduce environmental pollution, and at the same time improve various properties of raw soil materials; in addition, the source of raw materials is extensive, and materials can be obtained locally, which reduces production costs and transportation costs.

Description

technical field [0001] The invention relates to the fields of building materials and new environmental protection and energy-saving materials, in particular to a method for modifying raw soil materials by utilizing cereal distiller's grains. Background technique [0002] With the advancement of my country's new urbanization, raw soil materials, as a traditional building material that can be recycled and have excellent thermal insulation properties, have attracted people's attention again. At present, most raw soil materials use cement, lime, industrial waste, etc. as cementing materials, and then add natural plant fibers as reinforcing materials to improve their performance. Grain distiller's grains, as a by-product of ethanol production, have high acidity and are particularly prone to spoilage, leading to environmental pollution. Grain distiller's grains contain a lot of fiber. When using grain distiller's grains as a reinforcing material to prepare raw soil blocks, the pl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/00C04B28/02
Inventor 刘志华李园枫曲烈荣辉
Owner TIANJIN CHENGJIAN UNIV
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