Wheat straw compression molding block

A technology of wheat straw and compression molding, which is applied in the field of building materials, can solve the problems of destroying the ecological environment, air pollution, low development and utilization rate, etc.

Inactive Publication Date: 2010-06-16
SHANDONG AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the development and utilization rate of these straws is still relatively low in my country at present. A large amount of straws are burned in the fields, which not only causes serious air pollution, destroys the ecological environment, but also wastes valuable renewable resources.

Method used

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  • Wheat straw compression molding block
  • Wheat straw compression molding block

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Experimental program
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Embodiment Construction

[0011] The processing process of the wheat straw compression molding block is as follows:

[0012] The processing of wheat straw compression molding blocks is based on the ratio of raw materials. Firstly, the wheat straw is crushed to a length of 5-10mm, and then the prepared lime (2) and water are fully mixed to form a lime slurry, and then the lime slurry is mixed several times in small amounts. Add it into the wheat straw (3), stir evenly with the wheat straw (3), then put it into a mold, and cold press it into shape. The size is determined according to the actual needs of the wall. It is appropriate not to expose to the sun.

[0013] The invention is suitable for mass production of production units, and has good promotion prospects in the construction of new countryside because of the advantages of heat insulation, sound insulation and heat preservation.

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Abstract

The invention relates to a wheat straw compression molding block belonging to the field of building materials. The technical scheme for realizing the invention comprises the following steps of: mixing wheat straws, lime and water according to the weight proportion of 1.05-1.50 to 2.5-6 to 0.4-0.7; loading the uniformly mixed mixture into a tailor-made mould; carrying out compression molding under the cold pressing condition of 11.31 to 41.30kN (kilonewton); demoulding the wheat straw compression molding block after 5 to 30 minutes; and placing the wheat straw compression molding block in an environment of room temperature of 24 DEG C to 30 DEG C for air drying. The invention can be produced in a mass mode to meet requirements for building energy saving. Tests prove that the compression molding block has the advantages of wall strength improvement, heat preservation, heat insulation, sound insulation, and the like, also consumes a large quantity of residual straws and conforms to requirements for developing recycling economy. The invention is suitable for popularization and application in vast rural areas.

Description

(1) Technical field [0001] The invention relates to a compressed wheat straw block, which belongs to the field of building materials. (2) Background technology [0002] Our country is a large agricultural country, which produces a large amount of agricultural residues - straw every year. Such as wheat straw, rice straw, corn, sorghum, cotton straw, etc. According to the latest statistics, there are 700 million tons of straw produced by crops in China every year, ranking first in the world. However, the development and utilization rate of these straws in our country is still relatively low at present. A large number of straws are burned in the fields, which not only causes serious air pollution, destroys the ecological environment, but also wastes valuable renewable resources. The straw compression molding block is not only low in cost but also has good thermal insulation function. The use of agricultural waste such as wheat straw to produce new wall materials not only tur...

Claims

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Application Information

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IPC IPC(8): E04C1/41C04B18/24C04B28/00
CPCY02W30/91
Inventor 刘福胜张玉稳路则光刘永
Owner SHANDONG AGRICULTURAL UNIVERSITY
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