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...

Examples

Embodiment 1

[0026] Example 1, as shown in the figure

[0027] The efficient continuous crack-free flattening method of bamboo tube includes the following process steps:

[0028] Step (1) Pre-treat the fresh bamboo tube; after cutting the bamboo tube for 6 days as required, pass through a combined device to remove the inner section, the green bamboo and the outer section at the same time, and then cut a longitudinal straight saw slit with a width of 4mm on the bamboo tube .

[0029] Step (2) The bamboo tube enters the heating pipe for heating treatment. The saw seam of the bamboo tube is facing upward, and the positioning device on the slideway is aligned, and placed on the slideway. The bamboo tube enters the pipeline preheating chamber A, preheating chamber B, and high temperature in turn In the steam heating room and the heat preservation room, the corresponding temperatures are 40°C, 60°C, 130°C and 100°C, respectively. By controlling each partition door in the middle of the heating pipe, th...

Embodiment 2

[0032] Embodiment 2, as shown in the attached drawings, the high-efficiency continuous crack-free flattening method of bamboo tubes includes the following process steps:

[0033] Step (1) Pretreat the fresh bamboo tube; after cutting the bamboo tube for 8 days as required, pass through a combination device to remove the inner section, the green bamboo and the outer section at the same time, and then cut a longitudinal straight saw slit with a width of 5mm on the bamboo tube .

[0034] Step (2) The bamboo tube enters the heating pipe for heating treatment. The saw seam of the bamboo tube is facing upward, and the positioning device on the slideway is aligned, and placed on the slideway. The bamboo tube enters the pipeline preheating chamber A, preheating chamber B, and high temperature in turn In the steam heating room and the heat preservation room, the corresponding temperatures are respectively 80°C, 100°C, 160°C and 120°C. The temperature is controlled by controlling the partiti...

Embodiment 3

[0037] Embodiment 3, as shown in the accompanying drawings, the high-efficiency continuous crack-free flattening method of bamboo tubes includes the following process steps:

[0038] Step (1) Pre-treat the fresh bamboo tube; after cutting the bamboo tube for 8 days as required, pass through a combination device to remove the inner section, bamboo green and outer section at the same time, and then cut a longitudinal straight saw slit with a width of 6mm on the bamboo tube .

[0039] Step (2) The bamboo tube enters the heating pipe for heating treatment. The saw seam of the bamboo tube is facing upward, and the positioning device on the slideway is aligned, and placed on the slideway. The bamboo tube enters the pipeline preheating chamber A, preheating chamber B, and high temperature in turn In the steam heating room and the heat preservation room, the corresponding temperatures are respectively 60°C, 80°C, 145°C and 110°C. By controlling each partition door in the middle of the heat...

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...

Examples

Embodiment 1

[0026] Example 1, as shown in the figure

[0027] The efficient continuous crack-free flattening method of bamboo tube includes the following process steps:

[0028] Step (1) Pre-treat the fresh bamboo tube; after cutting the bamboo tube for 6 days as required, pass through a combined device to remove the inner section, the green bamboo and the outer section at the same time, and then cut a longitudinal straight saw slit with a width of 4mm on the bamboo tube .

[0029] Step (2) The bamboo tube enters the heating pipe for heating treatment. The saw seam of the bamboo tube is facing upward, and the positioning device on the slideway is aligned, and placed on the slideway. The bamboo tube enters the pipeline preheating chamber A, preheating chamber B, and high temperature in turn In the steam heating room and the heat preservation room, the corresponding temperatures are 40°C, 60°C, 130°C and 100°C, respectively. By controlling each partition door in the middle of the heating pipe, th...

Embodiment 2

[0032] Embodiment 2, as shown in the attached drawings, the high-efficiency continuous crack-free flattening method of bamboo tubes includes the following process steps:

[0033] Step (1) Pretreat the fresh bamboo tube; after cutting the bamboo tube for 8 days as required, pass through a combination device to remove the inner section, the green bamboo and the outer section at the same time, and then cut a longitudinal straight saw slit with a width of 5mm on the bamboo tube .

[0034] Step (2) The bamboo tube enters the heating pipe for heating treatment. The saw seam of the bamboo tube is facing upward, and the positioning device on the slideway is aligned, and placed on the slideway. The bamboo tube enters the pipeline preheating chamber A, preheating chamber B, and high temperature in turn In the steam heating room and the heat preservation room, the corresponding temperatures are respectively 80°C, 100°C, 160°C and 120°C. The temperature is controlled by controlling the partiti...

Embodiment 3

[0037] Embodiment 3, as shown in the accompanying drawings, the high-efficiency continuous crack-free flattening method of bamboo tubes includes the following process steps:

[0038] Step (1) Pre-treat the fresh bamboo tube; after cutting the bamboo tube for 8 days as required, pass through a combination device to remove the inner section, bamboo green and outer section at the same time, and then cut a longitudinal straight saw slit with a width of 6mm on the bamboo tube .

[0039] Step (2) The bamboo tube enters the heating pipe for heating treatment. The saw seam of the bamboo tube is facing upward, and the positioning device on the slideway is aligned, and placed on the slideway. The bamboo tube enters the pipeline preheating chamber A, preheating chamber B, and high temperature in turn In the steam heating room and the heat preservation room, the corresponding temperatures are respectively 60°C, 80°C, 145°C and 110°C. By controlling each partition door in the middle of the heat...

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