CN1203148C - Timber oil extract and drying method - Google Patents

Abstract

The present invention relates to a wood oil extraction and drying method for pinewoods containing oil and oak wood plates, which comprises that wood to be treated is stacked in a baking kiln which is provided with a moisture exhaust port; a kiln door and the moisture exhaust port are closed, after temperature in the kiln is raised to 70 to 80 DEG C, the temperature is preserved for 160 to 180 hours and oil in pinewoods can be extracted out under the condition; oak wood does not need extracting oil, the moisture exhaust port is opened to exhaust black moisture when conveyed steam is heated up and the temperature of the kiln is preserved for 80 to 90 hours when dropped to 55 to 60 DEG C. The water content of dried wood can be controlled for 10 to 13%. The wood processed by using the present invention has the advantage of high quality and can be used for making high-grade furniture and connecting plates. Thus the present invention has the advantages of application range widening of wood, reasonable process and energy saving.

Description

Timber is put forward oil and oven dry treatment process

The present invention relates to timber and put forward the oven dry treatment process of carrying oil oven dry and toothed oak wood plank of oil and oven dry treatment process, particularly oil-containing pine.

Existing pine such as tamarack wherein contain a large amount of turps, do not put forward Chinese pine wood cracking, distortion, warpage, can only be used for doing building board, purlin material, building template use, can not do furniture and finishing material uses, extract turpentine wood oil and remain and adopt comparatively that primary naked light baking small workshop mode extracts way, yield poorly and dangerous; The toothed oak timber handled of drying craze and transfiguration very easily not, and the toothed oak of the Northeast wood is owing to be subjected to the influence of weather geographical environment, former toothed oak wood is peripheral for black core retainer plate white, and influence is with material plane materiel attractive in appearance particularly.

The objective of the invention is to overcome the limitation that above-mentioned timber uses and use in the various defectives that exist, provide a kind of timber to carry oil oven dry treatment process, the oven dry treatment process of carrying oil oven dry and toothed oak wood plank of oil-containing pine particularly, adopt treatment process of the present invention can improve class and the use range of using material greatly, improved and used the material quality, the turps of extraction has more improved the utility value of pine as important chemical material.

The present invention puies forward oil and oven dry treatment process, is meant that the oil of carrying of pine is dried treatment process, is in the process of constant temperature drying the turps in the pine to be extracted in timber stoving steam kiln, and its treatment process is:

A) with pending timber stacking in the drying kiln that the humidity discharging mouth is set, mat formation the metal oil-collecting plate arranged in grillage bottom, oil-collecting plate becomes certain angle of inclination with the kiln baseplane, at oil-collecting plate fuel-displaced position installation pipeline road and valve;

B) close wicket and humidity discharging mouth, firing up then, delivering vapor in kiln kept constant temperature 160～180 hours when temperature rises to 75～80 ℃ simultaneously;

C) open the pipeline road valve extract oil is emitted, timber is treated the oven dry processing in the kiln;

D) open drying kiln humidity discharging mouth, make cooling naturally in the kiln, when kiln temperature is reduced to 55～60 ℃, continue insulation 110～130 hours;

E) reach at 10～13% o'clock with moisture content in the moisture content tester mensuration kiln, open wicket, stop constant temperature, timber kiln discharge under natural temperature.

For the oven dry treatment process of toothed oak wood plank, be in timber stoving steam kiln in heat up and the process of constant temperature drying in the toothed oak wood plank of black and white chromatography is processed into white quartzy toothed oak, its treatment process is:

A) earlier pending toothed oak wood plank is piled up in the drying kiln that the humidity discharging mouth is set, closed wicket and humidity discharging mouth then;

B) firing up the time in kiln delivering vapor, open humidity discharging mouth discharging moisture again, when temperature rises to 70～75 ℃, kept constant temperature 110～130 ℃ hours;

C) constant temperature is reduced to 55～60 ℃ with kiln temperature after finishing first, continues to keep constant temperature 80～90 hours;

D) reach at 10～13% o'clock with moisture content in the moisture content tester mensuration kiln, open wicket, stop secondary constant temperature toothed oak wood kiln discharge under natural temperature.

The present invention has following advantage:

1, carry pine sheet material after the oil treatment, can make finishing material such as various high-grade furnitures and various finger-jointed sheet materials as tamarack, can match in excellence or beauty with Korean pine, every cubic metre of pine can be extracted 150～200kg turps, and sale price is brought up to 1800 yuan/m ³The use value and the product quality of pine material have been improved greatly;

2, treated toothed oak wood plank will be deceived core toothed oak material and will be transformed into white, and this crystal toothed oak can be made various high-grade furnitures and finger-jointed sheet material, and price has improved 1 times than originally;

3, treated pine and toothed oak wood do not ftracture, and indeformable warpage, yield rate reach more than 98%;

4, technology is reasonable, saves the energy.

Specific embodiments of the present invention is as follows:

Embodiment 1:(tamarack is proposed the oil oven dry and handles)

A) earlier pending tamarack is piled up in drying kiln, have the humidity discharging mouth on the kiln wall, the grillage bottom galvanized sheet of mating formation in kiln, galvanized sheet one side is provided with oil groove, the galvanized sheet bed hedgehopping becomes 20～40 ° of angles of inclination with the kiln baseplane, make the outflow of taking advantage of a situation of the turps of extraction, pipeline road and by-pass valve control are installed by fuel-displaced place at the galvanized sheet oil groove;

B) close wicket and humidity discharging mouth, igniting heats up steam oven then, and delivering vapor in kiln is incubated 170～175 hours when temperature rises to 75～80 ℃ simultaneously;

C) open the pipeline road valve turps that extracts is emitted, timber treats that oven dry handles in the kiln, and the turps natural subsidence of extraction is anhydrated and obtained thick oil and treat further refining;

D) open drying kiln humidity discharging mouth, make cooling naturally in the kiln, when kiln temperature drop to 55～60 ℃, continue to be incubated 120～125 hours;

E) reach at 10～12% o'clock with moisture content in the moisture content tester mensuration kiln, open wicket, stop constant temperature, with the timber kiln discharge, winter, the kiln discharge temperature was 0 ℃ ± 3 ℃ under natural temperature, and summer, the kiln discharge temperature was about 15～25 ℃.

Embodiment 2:(toothed oak wood plank is handled)

A) pending toothed oak wood plank is piled up in the drying with steam kiln, closed humidity discharging mouth and wicket that the kiln wall is provided with then;

B) igniting heats up steam oven and send steam in kiln, opens humidity discharging mouth discharging moisture again, and insulation is 120～130 hours when temperature rises to 70～75 ℃;

C) constant temperature is opened wicket after finishing first, makes the wicket temperature reduce to 55～60 ℃, continues insulation 80～90 hours;

D) reach at 10～12% o'clock with toothed oak moisture content in the moisture content tester mensuration kiln, open wicket, stop secondary constant temperature toothed oak wood kiln discharge under natural temperature.

Claims (2)

1, timber is put forward oil and oven dry treatment process, is the oil-containing pine to be proposed the oil oven dry handle, and in the process of constant temperature drying the turps in the pine is extracted in drying kiln, it is characterized in that:

A) with pending timber stacking in the drying kiln that the humidity discharging mouth is set, mat formation the metal oil-collecting plate arranged in grillage bottom, oil-collecting plate becomes certain angle of inclination with the kiln baseplane, at oil-collecting plate fuel-displaced position installation pipeline road and valve;

B) close wicket and humidity discharging mouth, firing up then, delivering vapor in kiln kept constant temperature 160～180 hours when temperature rises to 75～80 ℃ simultaneously;

C) open the pipeline road valve extract oil is emitted, timber is treated the oven dry processing in the kiln;

D) open drying kiln humidity discharging mouth, make cooling naturally in the kiln, when kiln temperature is reduced to 55～60 ℃, continue insulation 110～130 hours;

E) reach at 10～13% o'clock with moisture content in the moisture content tester mensuration kiln, open wicket, stop constant temperature, timber kiln discharge under natural temperature.

2, timber is put forward oil and oven dry treatment process, is the method that toothed oak wood plank constant temperature drying in drying kiln is processed into quartzy toothed oak, it is characterized in that:

A) earlier pending toothed oak wood plank is piled up in the drying kiln that the humidity discharging mouth is set, closed wicket and humidity discharging mouth then;

B) firing up the time in kiln delivering vapor, open humidity discharging mouth discharging moisture again, when temperature rises to 70～75 ℃, kept constant temperature 110～130 ℃ hours;

C) constant temperature is reduced to 55～60 ℃ with kiln temperature after finishing first, continues to keep constant temperature 80～90 hours;

D) reach at 10～13% o'clock with moisture content in the moisture content tester mensuration kiln, open wicket, stop secondary constant temperature toothed oak wood kiln discharge under natural temperature.