Energy-saving rosewood straightening process

A straightening and mahogany technology, applied in the straightening process of mahogany wood, can solve the problems of slow pyrolysis, high energy consumption, long heating time, etc., achieve pH balance, low energy consumption, and reduce pyrolysis. effect of time

Inactive Publication Date: 2020-06-19
闵连根
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the dense fiber of mahogany, the pyrolysis speed is very slow, and it requires a long heating time. The heating time is generally 7-8h, which consumes a lot of steam and consumes a lot of energy.
Therefore, existing mahogany straightening process has the defect of large energy consumption

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Example 1. A kind of energy-saving mahogany straightening process, comprises the following steps,

[0020] a, soak the mahogany in the form of wooden cubes with 25% hydrochloric acid solution for 90 hours to get product A,

[0021] b. Soak product A with ammonia water until the wood acidity of product B reaches 6.8 to obtain product B.

[0022] c. Soak product B in running water for 3 days to obtain product C1; air-dry product C1 so that the moisture content of product C1 is 15% to obtain product C.

[0023] d. Put product C into a steam box to heat for 2.5 hours, and keep the water content of product C at 18% by adjusting the steam saturation in the steam box to obtain product D.

[0024] e. Put product D into a mold for straightening, and heat product D while straightening, so that the moisture content of product D is 10%, to obtain product E1; product E1 is cooled at room temperature, and left to stand for 4 hours to obtain a finished product.

Embodiment 2

[0025] Example 2. A kind of energy-saving mahogany straightening process, comprises the following steps,

[0026] a, soak the mahogany in the form of wooden cubes with 20% hydrochloric acid solution for 100 hours to get product A,

[0027] b. Soak product A with ammonia water until the wood acidity of product B reaches 6.5 to obtain product B.

[0028] c. Soak product B in running water for 4 days to obtain product C1; air-dry product C1 so that the moisture content of product C1 is 12% to obtain product C.

[0029] d. Put product C into a steam box to heat for 3 hours, and keep the water content of product C at 15% by adjusting the steam saturation in the steam box to obtain product D.

[0030] e. Put product D into a mold for straightening, and heat product D while straightening, so that the moisture content of product D is 8%, to obtain product E1; product E1 is cooled at room temperature, and left to stand for 5 hours to obtain a finished product.

Embodiment 3

[0031] Example 3. A kind of energy-saving mahogany straightening process, comprises the following steps,

[0032] a, soak the mahogany in the form of wooden squares with 30% hydrochloric acid solution for 80 hours to get product A,

[0033] b. Soak product A with ammonia water until the wood acidity of product B reaches 7 to obtain product B.

[0034] c. Soak product B in running water for 2 days to obtain product C1; air-dry product C1 so that the moisture content of product C1 is 18%, and obtain product C.

[0035] d. Put product C into a steam box to heat for 2 hours, and keep the moisture content of product C at 20% by adjusting the steam saturation in the steam box to obtain product D.

[0036] e. Put product D into a mold for straightening, and heat product D while straightening, so that the moisture content of product D is 12%, to obtain product E1; product E1 is cooled at room temperature, and left to stand for 3 hours to obtain a finished product.

[0037] The inve...

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PUM

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Abstract

The invention discloses an energy-saving rosewood straightening process, which comprises the following steps: a, soaking rosewood in a flitch form by using a hydrochloric acid solution with a concentration of 20-30% for 80-100 h to obtain a product A; b, soaking the product A with ammonia water until the wood acidity of the product A reaches 6.5-7 to obtain a product B; c, soaking the product B inflowing water for 2-4 days to obtain a product C; d, heating the product C in a steam box for 2-3 hours to obtain a product D; and e, straightening the product D to obtain a finished product, whereinin the step C, the product B is soaked in flowing water for 2-4 days to obtain a product C1, and the C1 product is air-dried to achieve the moisture content of the C1 product of 12-18% so as to obtain the product C. The process has the advantage of low energy consumption.

Description

technical field [0001] The invention belongs to the field of mahogany square straightening technology, in particular to an energy-saving mahogany straightening technology. Background technique [0002] At present, many mahogany used in China are purchased by middlemen in the form of wooden cubes from abroad. During long-distance transportation and long-term storage, mahogany is prone to bending and deformation. The utilization rate of raw materials is low, and the price of mahogany is high. In order to avoid material waste, it is necessary to straighten mahogany. The existing mahogany straightening process is to put the mahogany into a steam box to heat, so that the fibers in the mahogany are pyrolyzed and the wood sections become flexible, and then the wood sections are taken out for straightening. Due to the dense fiber of mahogany, the pyrolysis speed is very slow, and it requires a long heating time. The heating time is generally 7-8 hours, which consumes a lot of steam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/16B27K5/00B27M1/02
CPCB27K3/16B27K5/001B27K5/0085B27M1/02
Inventor 闵连根
Owner 闵连根
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