Method for completely recycling straws

Abstract

The invention belongs to the technical field of straw, and particularly relates to a method for completely recycling straws. The method comprises: S1, carrying out early stage treatment, wherein strawis subjected to collection and centralization, air drying, carbonization, steam activation and drying to form charcoal; S2, mashing the carbonized straw to form charcoal powder, S3, adding an adhesive into the charcoal powder, putting into a stirrer, and uniformly stirring; S4, putting the stirred and mixed charcoal powder into a wood plate mold, and carrying out extrusion molding by using a hydraulic machine to form a plate shape; and S5, coating the outer surface of the molded charcoal plate with a curing agent layer. According to the invention, with the method, the use value of the charcoal powder can be developed in advance; and with the application of the charcoal plate made of the charcoal powder in building, the wood is saved, the manufacturing is convenient, the cost is low, the residual value of the straw can be further developed successfully, and the charcoal plate does not generate bacterial diseases, is environmentally friendly and does not harm human health in building decoration.

Description

technical field [0001] The invention relates to the technical field of straws, in particular to a method for fully utilizing and recycling straws. Background technique [0002] Straw is the general term for the stems and leaves (ears) of mature crops. It usually refers to the remaining part of wheat, rice, corn, potato, rapeseed, cotton, sugar cane and other crops (usually coarse grains) after harvesting the seeds. More than half of the photosynthetic products of crops exist in straw, which is rich in nitrogen, phosphorus, potassium, calcium, magnesium and organic matter, etc. It is a multi-purpose renewable biological resource, and straw is also a roughage. [0003] With the improvement of living standards, most households use gas or natural gas for cooking. At this time, a large amount of straw produced by crops will be discarded or buried on the spot and then fermented into fertilizer. After the burial, the pests on the straw are also buried with the straw, which is eas...

AI Technical Summary

Problems solved by technology

[0003] With the improvement of living standards, most households use gas or natural gas for cooking. At this time, a large amount of straw produced by crops will be discarded or buried on the spot and then fermented into fertilizer. After the burial, the pests on the straw are also buried with the straw, which is easy to cause pest damage to the crops of the next season. The current treatment methods for the straw are: first, recycle and make board products, and second, directly make charcoal

[0004] There will be new problems in the above two processing methods: 1. The method of making boards is to recycle the straw and then crush it and then squeeze it through a hydraulic press with a mold. The boards produced by this method will be directly discarded after being damaged in the later stage. , can no longer be used, and will also cause new garbage, and cannot be burned directly, because in the process of making boards, flame-retardant substances need to be added, and most of the boards produced by this method can only be burned Applied to low-level products such as furniture, tables, chairs, benches, etc., the value of use is limited; 2. Direct firing to make charcoal, its manufacturing method and cost are relatively high, compared with the method and cost of making charcoal from thicker trees. better than straw

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