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Method of making non-bearing thermal building blocks by using maize stalk

A technology of corn stalks and thermal insulation blocks, which is applied in the direction of manufacturing tools and wood processing appliances, etc., can solve the problems of thermal insulation, poor sound insulation effect, large load, etc., and achieve good thermal insulation effect

Inactive Publication Date: 2007-12-12
SHENYANG JIANZHU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for manufacturing non-load-bearing thermal insulation blocks from corn stalks. The method uses dried corn stalks and polystyrene as the main raw materials to produce building thermal insulation blocks, which solves the problem of large loads on the building body and thermal insulation problems. , The problem of poor sound insulation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] First, dry the harvested corn stalks naturally, remove the remaining leaves from the naturally dried corn stalks, then dry them until the moisture content is below 3%, and crush the dried corn stalks to a length of 2 to 5 cm. Mix crushed corn stalks with polystyrene granules at a weight ratio of 450:1, and put the mixture into a block mold until the mold is full. Introduce water vapor at 90°C to the mixture in the mold, and keep the water vapor pressure in the mold at 1.5 atmospheres for 30 seconds, so that the polystyrene particles will quickly expand and fill the space in the mold, and at the same time make the corn stalks and hair in the mold After foaming, the polystyrene particles adhere to each other to form a whole. The material after form removal is the non-load-bearing building insulation block.

Embodiment 2

[0022] Firstly, the harvested corn stalks are naturally air-dried, the remaining leaves are removed from the naturally-air-dried corn stalks, and then dried until the moisture content is below 3%, and the dried corn stalks are crushed to a length of 2-5cm. Mix crushed corn stalks with polystyrene granules at a weight ratio of 400:1, and put the mixture into a block mold until the mold is full. Introduce water vapor at 90°C to the mixture in the mold, and keep the water vapor pressure in the mold at 1.5 atmospheres for 30 seconds, so that the polystyrene particles will quickly expand and fill the space in the mold, and at the same time make the corn stalks and hair in the mold After foaming, the polystyrene particles adhere to each other to form a whole. The material after form removal is the non-load-bearing building insulation block.

Embodiment 3

[0024] First, dry the harvested corn stalks naturally, remove the remaining leaves from the naturally dried corn stalks, then dry them until the moisture content is below 3%, and crush the dried corn stalks to a length of 2 to 5 cm. Mix crushed corn stalks with polystyrene particles at a weight ratio of 350:1, and put the mixture into a block mold until the mold is full. Introduce water vapor at 90°C to the mixture in the mold, and keep the water vapor pressure in the mold at 1.5 atmospheres for 30 seconds, so that the polystyrene particles will quickly expand and fill the space in the mold, and at the same time make the corn stalks and hair in the mold After foaming, the polystyrene particles adhere to each other to form a whole. The material after form removal is the non-load-bearing building insulation block.

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PUM

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Abstract

A technology for manufacturing the insulating building block used for the wall not bearing load includes such steps as natural drying of corn stalks, removing leaves, baking, cutting by 2-5cm in length, proportionally mixing it with polystyrene particles, loading the mixture in mould, filling steam at 90 deg.C for quick foaming, and demoulding.

Description

technical field [0001] The invention relates to a preparation technology of building wall materials, in particular to a method for making non-load-bearing building thermal insulation blocks by using corn stalks. Background technique [0002] At present, the non-load-bearing blocks of building walls are mostly inorganic materials, which have good strength, but poor thermal insulation and sound insulation effects, and the weight per unit volume is large, which increases the load of the building. Blocks are divided into materials, including fly ash silicate blocks, ordinary concrete hollow blocks, coal gangue silicate hollow bricks, etc. At the same time, a large amount of crop straws in our country have not been rationally utilized every year. Contents of the invention [0003] The purpose of the present invention is to provide a method for manufacturing non-load-bearing thermal insulation blocks from corn stalks. The method uses dried corn stalks and polystyrene as the mai...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27M3/00
Inventor 王博孙驭
Owner SHENYANG JIANZHU UNIVERSITY