Vacuum pine oil-eliminating method and apparatus

A vacuum degreasing and pine wood technology, applied in the direction of pressure impregnation, etc., can solve the problems of shortened service life, wood cracking, and unclean removal of pine oil

Inactive Publication Date: 2006-08-02
黄豹
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, pine wood is degreased by steam drying, which removes both pine oil and rosin. In fact, the pine oil cannot be removed by this method, and the wood cracks severely, shortening the service life and causing a lot of waste.

Method used

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  • Vacuum pine oil-eliminating method and apparatus

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Embodiment Construction

[0021] As seen from Fig. 1, 2, the vacuum degreasing method of pine of the present invention comprises the following steps:

[0022] 1) Wood stacking: place each piece of wood of the same thickness on the trolley alternately with metal chains, push it into the horizontal high-pressure tank along the guide rail, and the height of the wood must not exceed 80% of the height of the tank, and close the seal end caps and all valves;

[0023] 2) Inject degreaser: vacuumize the tank so that the pressure in the tank is 0.06-0.08MPa; turn on the degreaser switch, and the degreaser in the liquid storage tank will be automatically injected into the closed high-pressure tank. The degreaser should submerge the wood, space remains on it;

[0024] 3) High-temperature and high-pressure cooking: turn on the steam switch, input steam into the tank, heat the degreasing agent, make the temperature in the tank reach 100-120°C, and the pressure is 1.0-1.2MPa, cook wood, the thickness of a single pi...

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PUM

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Abstract

The pine oil eliminating method includes timber stacking, injecting oil eliminating agent, high temperature and high pressure steaming, extracting oil eliminating agent, spraying steam, cooling, draining, vacuum pumping, and relieving pressure and discharging. The relevant oil eliminating apparatus includes a horizontal high pressure tank with rotary sealing cover, bogies for stacking timber on the tracks inside the tank, a liquid storage for oil eliminating agent, a pipeline with pump and valve as well as draining valve communicated to the bottom of the tank, a vacuum pump connected with buffering tank and condenser, safety steam valve, and a heat supply unit communicated with the tank through pipeline with steam valve. The present invention can separate pine oil from timber while leaving rosin in timber to maintain the anticorrosive performance and prolong the service life.

Description

technical field [0001] The present invention relates to a method for degreasing pine wood and the degreasing equipment used therein; specifically, adding degreasing agent in a pressure vessel, steaming pine wood, and then spraying steam in a vacuum state and equipment used. Background technique [0002] As we all know, pine wood contains pine resin, which is composed of pine oil and rosin, and rosin protects the wood and can prolong the life of pine wood, but the pine oil must be removed, otherwise the pine oil will flow out naturally after a long time, affecting the quality of the wood. The use of wood, especially after being made into furniture, will affect the appearance, so the pine oil should be separated and the rosin should be left in the wood. At present, pine is dried and degreased by steam, which removes both pine oil and rosin. In fact, the pine oil cannot be removed by this method, and the wood is severely cracked, the service life is shortened, and there is a l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/08B27K3/10
Inventor 黄豹
Owner 黄豹
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