Hot-pressing system for manufacturing board by utilizing crop straws

Abstract

The invention relates to a hot-pressing system for manufacturing a board by utilizing crop straws, which comprises a machine frame, a hot pressing board, a drive mechanism, a control system and a heating system, wherein the hot-pressing board is arranged on the machine frame; the drive mechanism drives the hot-pressing board to open and close; and the control system controls the whole system. Thesystem is characterized in that the heating system comprises a high-temperature heating subsystem and a low-temperature circulation subsystem; the high-temperature heating subsystem and the low-temperature circulation subsystem are connected with the hot-pressing board respectively and are used for controlling the temperature of the hot-pressing board to change according to certain cycle so as tomake the hot-pressing board have a compression temperature needed by compressing a board blank and a molding temperature needed by molding the board blank; and the molding temperature is lower than the compression temperature. The invention carries out novel design on the hot-pressing system used in critical hot-pressing technology in a crop straw board manufacturing method so as to overcome the defects of the prior hot-pressing system, shorten the whole processing time, reduce the cost and improve product quality.

Description

technical field [0001] The invention relates to a processing equipment for making boards from crops, in particular to a hot pressing system used in the hot pressing process in the whole processing process. Background technique [0002] With the shortage of wood resources and the requirements of environmental protection, the price of wood-based panels is becoming more and more expensive, and countries have successively issued a series of laws and regulations to protect forest resources. It is the natural choice for the plank market to survive and seek development. As a by-product of agricultural production, crop straw has a large output and high cellulose and lignin content, so it has become the material of choice to replace wood-based panels. Reduce straw burning, reduce deforestation, avoid indoor formaldehyde pollution, and improve people's quality of life. However, due to the inherent characteristics of crop straw, such as short fibers, many non-fibrous cells, difficult...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved in the present invention is to overcome the defects of the above-mentioned prior art, and carry out a new design on the hot-pressing system used in the key hot-pressing process in the crop straw board making method, thereby overcoming the disadvantages of the existing hot-pressing system. Defects, shorten the overall processing time, reduce costs, improve product quality

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