Method for preparing insulation bricks by using ramie fiber and riverway sludge

A technology of ramie fiber and river silt, applied in the field of building materials, can solve the problem of low strength, and achieve the effects of improving compressive performance, reducing costs, and improving thermal insulation performance

Pending Publication Date: 2019-02-15
郑辉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Although the above-mentioned patents use silt to make bricks, most of the raw materials are powder, without adding reinforcing fibers as a skeleton, and the strength is not high only through the action of adhesives.

Method used

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  • Method for preparing insulation bricks by using ramie fiber and riverway sludge
  • Method for preparing insulation bricks by using ramie fiber and riverway sludge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A kind of method utilizing ramie fiber and river silt to prepare insulation brick, comprises the following steps:

[0034] Dry the ramie and cut it to 15 mm, soak it in water for 55 minutes, knock the ramie 6-7 times, add it to the mixed solution of acetone and petroleum ether with a volume ratio of 5:1, heat it to reflux and extract for 40 minutes, take it out and soften the surface of the ramie section with clean water Rinse the skin; add water to the enzymatic hydrolysis tank, then add concentrated sulfuric acid and hydrogen peroxide (concentration is 24%), finally add ramie degumming enzyme and catalase, stir at room temperature for 1 hour, add the above-mentioned ramie to soak, during every 1 hour Stir for 10 minutes, take it out when the ramie in the enzymolysis tank is completely dispersed into cotton-like fibers, and rub it repeatedly while rinsing until no yellow solution is squeezed out, then dry to obtain ramie fibers; Soak in KH550 aqueous solution for 30min...

Embodiment 2

[0036] A kind of method utilizing ramie fiber and river silt to prepare insulation brick, comprises the following steps:

[0037]After drying, cut the ramie to 20 mm and soak in water for 60 minutes, knock the ramie 6-7 times, add it to the mixed solution of acetone and petroleum ether with a volume ratio of 5:1, heat to reflux and extract for 50 minutes, take it out and soften the surface of the ramie section with clean water Rinse the skin; add water to the enzymatic hydrolysis tank, then add concentrated sulfuric acid and hydrogen peroxide (concentration is 25%), finally add ramie degumming enzyme and catalase, stir at room temperature for 1 hour, add the above-mentioned ramie to soak, during every 1 hour Stir for 10 minutes, take it out when the ramie in the enzymolysis tank is completely dispersed into cotton-like fibers, and rub it repeatedly while rinsing until no yellow solution is squeezed out, then dry to obtain ramie fibers; Soak in KH550 aqueous solution for 30 min...

Embodiment 3

[0039] A kind of method utilizing ramie fiber and river silt to prepare insulation brick, comprises the following steps:

[0040] Dry the ramie and cut it to 20 mm, soak it in water for 40 minutes, knock the ramie 6-7 times, add it to the mixed solution of acetone and petroleum ether with a volume ratio of 5:1, heat to reflux and extract for 20 minutes, take it out and soften the surface of the ramie section with clean water Rinse the skin; add water to the enzymolysis tank, then add concentrated sulfuric acid and hydrogen peroxide (concentration is 20%), finally add ramie degumming enzyme and catalase, stir at room temperature for 1 hour, then add the above-mentioned ramie to soak, during every 1 hour Stir for 10 minutes, take it out when the ramie in the enzymolysis tank is completely dispersed into cotton-like fibers, and rub it repeatedly while rinsing until no yellow solution is squeezed out, then dry to obtain ramie fibers; Soak in KH550 aqueous solution for 30 minutes; ...

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Abstract

The invention provides a method for preparing insulation bricks by using ramie fiber and riverway sludge, and relates to the field of building materials. The method comprises the following steps: preparing the ramie fiber; heating trichloromethane to 75-85 DEG C, adding PVC while stirring, continuing stirring until the PVC is completely dissolved, cooling to room temperature, then immersing the ramie fiber for 15-20min, then taking out, and drying to obtain PVC-coated ramie fiber; excavating the riverway sludge, then flushing by using river water till a flow state, then conveying into a sludgetank by using a pressure pump, adding carbon powder, leaving to stand, then extracting a supernatant, excavating soil in the bottom layer, drying, then crushing, adding into a mixing tank, adding tapwater, fly ash, the PVC-coated ramie fiber, a polycarboxylate water reducer and Portland cement, heating up to 40-60 DEG C and uniformly stirring; sending a mixed material into a brick press, pressing into brick blanks, performing steam curing on the brick blanks in an autoclave for 5-6 hours, then drying till the moisture content is lower than or equal to 12%, and curing for 15-30 days. The prepared insulation bricks have the characteristics of high strength, no cracking, good insulation and the like and have extremely high economic and social benefits.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a method for preparing thermal insulation bricks by using ramie fibers and river mud. Background technique [0002] Building energy conservation has become a major strategic issue in our country. Building energy conservation is the top priority of building a conservation-oriented society, and building exterior wall insulation is the largest proportion of all building energy conservation measures. Since my country is a developing country with a large population, the per capita energy resources are relatively scarce. [0003] The per capita arable land is only 1 / 3 of the world's per capita arable land, water resources are only 1 / 4 of the world's per capita share, proven coal reserves account for only 11% of the world's reserves, and crude oil accounts for 2.4%. The solid clay bricks used in new buildings destroy 120,000 mu of fertile land every year. Compared with developed coun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B20/02C04B20/10C04B18/24C04B18/04C04B18/08
CPCC04B18/0436C04B18/08C04B18/248C04B20/023C04B20/1033C04B28/04C04B14/022C04B22/002C04B24/24Y02W30/91
Inventor 郑辉
Owner 郑辉
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