Method for producing bricks and prefabricated parts used for building by utilizing weeds and crop straw

Abstract

The invention relates to a method for producing bricks and prefabricated parts used for a building and a civilian building by utilizing weeds, crop straw and a polyurethane foam adhesive. The method comprises the following steps of: processing raw materials: cutting the weeds and straw into segments with the length of 20-40cm by utilizing a straw cutter, disorganizing the weed and crop straw segments by adopting a waste wheel machine to eliminate stress, and drying by adopting a drying machine; mixing grass rubber: mixing in a glue mixer, then carrying out compression moulding, injecting rubber into a grass base by adopting a high-pressure pump so as to be subjected to extrusion moulding, eliminating stress of the weeds and the crop straw and spraying the polyurethane foam adhesive into the waste wheel machine so as to be subjected to impact moulding; performing mould pressing, extruding and stamping, wherein hot pressing is adopted; and postprocessing: naturally cooling, placing embedded parts in a rotating aperture manner or directly placing the embedded parts during mould pressing. The products have the advantages of good heat preservation, energy conservation and earthquake-proof effects, strong antiflaming and insect prevention effects and high compression resistance, bending resistance and impact resistance. When the products are used for building a wall, cement is used for smearing a wall surface to prevent grass bricks and prefabricated parts from being damaged, thus the aim of fire protection is achieved.

Description

technical field [0001] The technology of the invention relates to the production of heat-preserving, energy-saving, earthquake-resistant buildings, residential bricks and prefabricated components by using weeds and crop straws and an environmentally friendly flame-retardant single-component polyurethane foam adhesive. technical background [0002] At present, cities and rural areas still use red brick cement bricks to build buildings and houses. One is that the insulation performance is poor and a large amount of heating fuel is wasted, and the addition of insulation boards on the outer walls can easily cause fires. The second is to destroy a large amount of land resources and reduce the area of ​​farmland; the third is to use coal to burn bricks to waste a large amount of national energy; the fourth is to use coal to burn bricks to emit a large amount of carbon dioxide, which is harmful to human survival; fifth, the earthquake resistance is poor, and earthquakes cause the gr...

AI Technical Summary

Problems solved by technology

[0002] At present, red brick cement bricks are still used to build buildings and houses in cities and rural areas. First, the insulation performance is poor and a large amount of heating fuel is wasted. Adding insulation boards to the outer walls is easy to cause fires.

The second is to destroy a large amount of land resources and reduce the area of ​​farmland; the third is to use coal to burn bricks to waste a large amount of national energy; the fourth is to use coal to burn bricks to emit a large amount of carbon dioxide and cause harm to human survival; It is a brick house; Sixth, the high cost of transporting bricks increases the cost of building a house