A kind of manufacturing process of environmental protection flame retardant straw board

Abstract

The invention discloses a manufacturing technology of an environment-friendly anti-flaming straw board. The manufacturing technology comprises the following steps that (1) crop straws are impurity-removed and smashed; (2) measurement and sub-package are conducted; (3) pavement and mould-entering are conducted; (4) pre-pressing formation is conducted; (5) sizing and cold-pressing are conducted; (6) mould-locking is conducted; (7) maintenance and mould-releasing are conducted; (8) drying is conducted; (9) final trimming of a semi-finished product is conducted; (10) sanding is conducted; and (11) packaging and storehouse-entering are conducted. The manufacturing technology adopts a normal-temperature cold-pressing technology, the method is simple, high-temperature heating is not needed, and gluing can be completed in a normal-temperature state; a slab is dried only in a drying step by adopting a microwave technology, solid fuel is not consumed, no chimney exists in a factory, and the whole process is green and environmentally friendly; and in addition, the straws are principal raw materials matched with an inorganic flame retardant and an inorganic binder which have excellent performances, the obtained straw board cannot be carbonized and deformed in the anti-flaming process at a high temperature of above 1200 DEG C, no harmful smoke and gas is generated, the straw board does not conduct heat at a high temperature and does not swell when encountering water, and the comprehensive performance is quite excellent.

Description

technical field [0001] The invention belongs to the technical field of wood-based panels, and in particular relates to a manufacturing process of an environment-friendly flame-retardant straw panel made of straw as a main raw material. Background technique [0002] With the development of social economy, people's life quality requirements are getting higher and higher. At present, multi-layer wooden boards, blockboards and medium density boards are often used in architectural decoration, furniture production and other industries. Among them, these three kinds of decorative boards have common disadvantages: they are not fireproof, contain a lot of harmful substances, seriously endanger the health of users, and need to consume a lot of wood. [0003] Although there are various fireproof boards on the market (such as gypsum boards, cement boards, magnesium oxide boards, calcium silicate boards, etc.), the finished products are all one kind of material, in other words, the finis...

AI Technical Summary

Problems solved by technology

[0002] With the development of social economy, people's life quality requirements are getting higher and higher. At present, multi-layer wooden boards, blockboards and medium density boards are often used in architectural decoration, furniture production and other industries. Among them, these three kinds of decorative panels have common disadvantages: they are not fireproof, contain a lot of harmful substances, seriously endanger the health of users, and consume a lot of wood.

To sum up, from a purely technical point of view, the core technical problem of crop straw-based panels at home and abroad is firstly the problem of gluing. Due to the application of MDI resin, the technology of modern straw-based panels has developed in stages, but Even so, compared with wood-based panels, there is still a considerable gap; especially in the collection and preparation of raw materials, production equipment, and product costs, whether it can be widely used and promoted, it is still necessary to find a way that suits China's national conditions. development path