Efficient continuous crackless flattening method of bamboo

Abstract

The invention discloses an efficient continuous crackless flattening method of bamboo. The method includes following process steps: (1), pre-treating fresh bamboo tubes; (2), enabling the bamboo tubes to enter a heating pipeline for heating treatment; (3), flattening the bamboo tubes in a heat-insulating space connected with the heating pipeline; (4), post-treating flattened bamboo chips. The method has the advantages that when the fresh bamboo tubes are placed in a high-temperature separated pipeline with temperature of 130-160 DEG C, quick heating and heat-moisture treatment of high-temperature overheated steam are utilized to enable temperature of the bamboo tubes to reach softening points of lignin, cellulose and hemicellulose, and in a subsequent section of the heat-insulating space for high-temperature heating, multiple bamboo tubes or bamboo chips with certain radian are sequentially flattened, cooled and set through flattening rollers which widens progressively. By using the method, treatment temperature for bamboo flattening and labor intensity of workers during operation are lowered, harsh environment for the workers during operation is improved, and production automation level is high; finished products do not need de-yellowing treatment, flattened bamboo is better in physical and mechanical performance, attractive in color and luster and suitable for being used for making artware and furniture and home decoration.

Description

Technical field [0001] The invention relates to an efficient continuous crack-free flattening method for bamboo, and belongs to the technical field of bamboo processing in the wood industry. Background technique [0002] my country is rich in bamboo resources. In 2011, the bamboo forest area was 5.381 million hectares and 1.644 billion bamboos. These have provided sustainable raw materials for the development of bamboo processing in my country. The flattening of bamboo tubes is due to the sustainable source of raw materials, high utilization rate, and beautiful texture. However, the flattening of existing bamboo tubes also requires high-temperature steam (such as 180℃). ), a special boiler is required, and the pressure resistance of the pressure tank is also high (the minimum 1.8MPa is required). This is mainly because it is processed in a high-temperature tank, and then the bamboo tube in the tank is taken to the cold environment of the workshop to be flattened. Because the temp...

AI Technical Summary

Problems solved by technology

These provide sustainable raw materials for the development of bamboo processing in my country. Because of its sustainable source of raw materials, high utilization rate and beautiful texture, the flattening of bamboo tubes still requires high-pressure high-temperature steam (such as 180°C) ), requires a special boiler, and requires a high compressive strength of the pressure tank (requires a minimum of 1.8MPa)

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