CN1203144A - Method and device for modification treatment of pencil slat - Google Patents
Method and device for modification treatment of pencil slat Download PDFInfo
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- CN1203144A CN1203144A CN 98110282 CN98110282A CN1203144A CN 1203144 A CN1203144 A CN 1203144A CN 98110282 CN98110282 CN 98110282 CN 98110282 A CN98110282 A CN 98110282A CN 1203144 A CN1203144 A CN 1203144A
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Abstract
A method for modifying wooden slat for pencil features that said pencil slats are loaded in a rotary drum and 200-350 deg.C hot air is passed into the rotary drum to form a hot air circulation by a fan. The water in pencil slat is evaporized to form high-humidity state of hot wind, which will modify the pencil slat . Said rotary drum has air inlet and outlet at its one end, ventilating tube in the drum and air distributing holes on the wall of tube. Its advantages are uniform luster of pencil slat, no burnt edge, warping rate lowered from 11% to 3%, short production period and low cost.
Description
The present invention relates to a kind of Wood-bar pencil manufacture technology and equipment, specifically a kind of Pencile-board modification treatment and device.
We know that the timber degenerative treatments is one of indispensable important procedure in the pencil plate production process.At present, China generally adopts roasting plate method to handle the pencil plate, its offal wood shavings with the pencil production process are fuel, burned flame directly heats the revolving drum that the pencil plate is housed, this method is by the Artificial Control burning, time that the pencil plate is handled and temperature are grasped by operator's experience, the quality instability, quality problems such as easily producing and stick with paste the limit, stick with paste the angle, seesaw is many, even also can be bad because of grasping, cause the burning of pencil plate, cause fire, and its labour intensity is big, working condition is poor, the easy contaminated environment of flue gas, harmful workers ' health.However, because of this method cost is low, with short production cycle,, still be used widely until today.Except that above-mentioned roasting plate method, at present, pencil also has with the modification treatment of timber both at home and abroad: chemicals facture and heating pressure processes.The chemicals processing method is with chemicals impregnation process timber under uniform temperature and pressure, makes the timber sex change; Heating and pressurizing method is in adiabatic hermetically sealed can, feed the saturated vapor or the gel of certain pressure, keep constant temperature and pressure, reach the purpose of timber sex change, said method is strict to equipment, equipment investment is big, the processing cost height, and the production cycle is long, and because of the difference of wood quality, its concrete processing method is also inequality, and therefore, domestic application is less.
Purpose of the present invention is exactly in order to overcome the deficiency of above-mentioned Pencile-board modification treatment, provide a kind of with short production cycle, cost is low, the Pencile-board modification treatment and the device of steady quality, convenient and reliable operation.
The present invention realizes like this; Produce hot blast with hot-blast stove, the feeding temperature is 200-350 ℃ a hot blast in the revolving drum that the pencil plate is housed, and carry out hot air circulation with blower fan, revolving drum hot-blast outlet temperature is 150-190 ℃, rely on the water evaporates of pencil plate, form the high wet condition of hot blast, the content of water vapour is 60-95% (weight) in the hot blast, directly the pencil plate is carried out degenerative treatments with hot and humid gas in revolving drum.
The present invention is used for the heated air circulation device of said method, comprise a hot-blast stove, revolving drum, circulating fan and circulation line, be provided with an air bleeding valve in the loop of circulation line, in time discharge the gas that degenerative process produces, also be provided with a dust arrester in addition, in time discharge because the pencil plate turns round the dust that produces, to guarantee normal pressure and the vapour content in the revolving drum.
It comprises a cylindric stack shell the above-mentioned employed revolving drum of the present invention, by bracket supports, and by driven by motor, also have different but it bakes the used revolving drum of plate method with traditional pencil plate, its end at tube is provided with hot blast import and hot-blast outlet, be provided with ventilation duct in the tube, be provided with air dispelling hole on the tube wall equably, but the other end of tube is provided with the door of a switch, do not influencing the turnover circulation that to carry out hot blast under the revolving drum rotation situation well like this, temperature in the application cylinder, charging, discharging easily exactly.
Pencile-board modification treatment of the present invention and device therefor thereof, easy for operation, the processing pencil board in modifying color and luster is even, reliable in quality, and it is with short production cycle, and cost is low, can satisfy the sex change requirement of the used timber of various pencil plates, sex change is effective, itself and traditional roasting plate method relatively can not produce and stick with paste the limit, stick with paste the angle phenomenon, and prying plate rate is reduced to less than 3% by original 11%.
The present invention will be further described below in conjunction with accompanying drawing;
Fig. 1 is heated air circulation device of the present invention and revolving drum schematic diagram.
As can be seen from Figure 1, heated air circulation device of the present invention comprises hot-blast stove 1, revolving drum 5, circulating fan 2, circulating line etc.The present invention produces hot blast by hot-blast stove 1, and hot-blast stove can electricity consumption, wet goods is done fuel, and to the pencil industry, most economical effective raw material is the offal wood shavings during pencil is produced.Hot blast is driven by circulating fan 2, circulates in pipeline, from the hot blast import 6 of revolving drum enters ventilation duct 8 in the revolving drum, through which is provided with air dispelling hole 9 diffusions, transmitting from hot-blast outlet 7 and discharge, enters in the closed circuit again.Adopt hot air circulation, save the energy, and can better keep the vapour content in the revolving drum 5.Hot cell of the present invention gas feeds and is equipped with in the revolving drum 5 of pencil plate, the temperature of hot blast import is controlled at 200-350 ℃, the temperature of hot-blast outlet is controlled at 150-190 ℃, A, B point is the temperature detecting point of hot blast among the figure, temperature by warm-air supply in temperature signal and control apparatus grasp and the control revolving drum makes it satisfy the temperature required requirement of processing pencil board in modifying.In revolving drum, rely on the evaporation moisture content of pencil plate, formed the high wet condition of hot blast, the content of water vapour is 60%-95% (weight) in the hot blast, under humid tropical condition, hot blast directly carries out degenerative treatments to the pencil plate.Owing to be in high wet condition, hydrone in the hot blast is under higher temperature, can penetrate infrared ray by the width of cloth, " infrared ray " passes directly heating pencil intralamellar part of pencil plate surface, the degenerative treatments efficient height of pencil plate, surperficial hardening phenomenon less appears, also reduce the quantity of prying plate, improved yield rate, shortened the production cycle, and it utilizes hot blast to do heat medium, and control is convenient, reliable.Hot air circulation pipeline of the present invention also is provided with air bleeding valve 3, so that the CO that excessive moisture content and technical process later stage pencil plate are decomposed
2With the CO air scavenge, be convenient to keep the stable of system pressure.Also be provided with a dust arrester 4 in the circulating line, to discharge the dust that the revolution of pencil plate produces.
The present invention is under humid tropical condition, and the time of processing pencil board in modifying, generally between 1 hour to 3 hours, it can be decided with the different of timber water content as the case may be.After hot blast stops circulation, can add the processing of cured technology by the waste heat of pencil plate.
The employed key device of modification treatment of the present invention is a revolving drum 5, and it is provided with a cylindric stack shell, and is provided with bracket supports, is rotated by driven by motor.The turnover of hot blast for convenience, an end of revolving drum of the present invention is provided with hot blast import 6 and hot-blast outlet 7, is provided with ventilation duct 8 in the tube, and tube wall is provided with air dispelling hole 9, but the other end of tube is provided with the tube door 10 of switch.Guaranteeing under the revolving drum normal rotation situation like this, can carry out well hot blast into and out of circulation, control temperature in hot blast and the tube exactly, easily charging, discharging.
The present invention adopts said method and equipment, and the pencil plate color and luster of processing is even, the limit no longer occurs sticking with paste, stick with paste the angle phenomenon, and every plate degree of treatment is the same.Prying plate rate is reduced to 3% by original 11%, before the processing, the water content of pencil plate is required also to relax greatly.It is with short production cycle, and cost is low, can satisfy the requirement of various pencil wood plate degenerative treatments, is a kind of desirable Pencile-board modification treatment.
Claims (2)
1, a kind of Pencile-board modification treatment, it is characterized in that: the feeding temperature is 200-350 ℃ a hot blast in the revolving drum that the pencil plate is housed, and carry out hot air circulation by blower fan, revolving drum hot-blast outlet temperature is 150-190 ℃, water evaporates by the pencil plate, form the high wet condition of hot blast, the content of water vapour is 60-95% (content) in the hot blast, directly the pencil plate is carried out degenerative treatments with hot and humid gas in revolving drum.
2, a kind of revolving drum device that is used for claim 1 method, comprise a cylindric stack shell, by bracket supports, and rotate by driven by motor, an end that it is characterized in that tube is provided with hot blast import and hot-blast outlet, be provided with ventilation duct in the tube, the other end that is provided with air dispelling hole, tube on the tube wall equably is provided with a door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98110282 CN1203144A (en) | 1998-06-10 | 1998-06-10 | Method and device for modification treatment of pencil slat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98110282 CN1203144A (en) | 1998-06-10 | 1998-06-10 | Method and device for modification treatment of pencil slat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1203144A true CN1203144A (en) | 1998-12-30 |
Family
ID=5220344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98110282 Pending CN1203144A (en) | 1998-06-10 | 1998-06-10 | Method and device for modification treatment of pencil slat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1203144A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102962873A (en) * | 2012-10-26 | 2013-03-13 | 安徽雪峰管业有限公司 | Method for manufacturing pencil board by denaturating treatment on poplar instead of basswood |
| CN104290162A (en) * | 2014-09-28 | 2015-01-21 | 庆元县金泰文具有限公司 | Pencil board carbonizing device and pencil board carbonizing method of pencil board carbonizing device |
| CN105216084A (en) * | 2015-08-27 | 2016-01-06 | 蚌埠市神龙笔业有限公司 | A kind of preparation method of pencil board |
-
1998
- 1998-06-10 CN CN 98110282 patent/CN1203144A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102962873A (en) * | 2012-10-26 | 2013-03-13 | 安徽雪峰管业有限公司 | Method for manufacturing pencil board by denaturating treatment on poplar instead of basswood |
| CN102962873B (en) * | 2012-10-26 | 2015-02-04 | 安徽雪峰木业有限公司 | Method for manufacturing pencil board by denaturating treatment on poplar instead of basswood |
| CN104290162A (en) * | 2014-09-28 | 2015-01-21 | 庆元县金泰文具有限公司 | Pencil board carbonizing device and pencil board carbonizing method of pencil board carbonizing device |
| CN104290162B (en) * | 2014-09-28 | 2016-08-24 | 庆元县金泰文具有限公司 | Pencil board carbonizing apparatus and use the pencil board charing method of this device |
| CN105216084A (en) * | 2015-08-27 | 2016-01-06 | 蚌埠市神龙笔业有限公司 | A kind of preparation method of pencil board |
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