CN102042745A - Novel method and equipment for separating volatilizable material from material by continuous vacuum drying - Google Patents
Novel method and equipment for separating volatilizable material from material by continuous vacuum drying Download PDFInfo
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- CN102042745A CN102042745A CN200910206155XA CN200910206155A CN102042745A CN 102042745 A CN102042745 A CN 102042745A CN 200910206155X A CN200910206155X A CN 200910206155XA CN 200910206155 A CN200910206155 A CN 200910206155A CN 102042745 A CN102042745 A CN 102042745A
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Abstract
The invention provides a novel method and equipment for separating a volatilizable material from a material by continuous vacuum drying. The invention is characterized in that a plurality of cushion strips or a plurality of cushion plates are stacked among a plurality of material layers which are made from a plurality of metal stripes or a plurality of metal plates with high thermal conductivity to be tightly contacted with a heater; the cushion strips or cushion plates are in a hollow or solid structure, and the end sockets of the cushion strips or cushion plates are provided with seal plates or provided with no seal plates so as not to be mutually and fixedly connected with the heater and other components in a material box and be capable of willfully and freely moving; the box is internally and reasonably provided with the heater; the box is internally provided with a structure strengthening piece; the material is preheated to a stated temperature, preserved and balanced for a stated time, and vacuumized, and the vacuumizing speed is controlled, so that the material is continuously dried to separate out the volatilizable material in the continuous vacuum environment; and after each technological parameter is up to the standard, the heating and the vacuumizing are stopped, so that the temperature of the material is preserved and balanced for a stated time under the condition. The invention has the advantage of being short in drying time, high in efficiency, low in energy consumption, simple in technology, good in drying quality, large in the volume of equipment, convenient to load the material, large in loading quantity, low in running cost, and is insecticidal, mildewproof, defatted and peculiar smell-removed.
Description
Technical field
The present invention relates to continuous vacuum drying and deviate from the method and apparatus of the volatilizable thing of material.
Background technology
Material usually all must carry out the processing that drying is deviate from volatilizable thing in the material before being made as finished product, with prevent that finished product from ftractureing in use, distortion, mouldy, snake and emit bad smell etc.
The method that the volatilizable thing of material is deviate from conventional drying is that material is placed on case is indoor, and the drying of carrying out the volatilizable thing of material under heating environment is deviate from.In conventional drying, heat passes to the material surface by conduction, convection current, three kinds of modes of radiation, and the mode with conduction is delivered to material inside with heat again.When material inside rose to uniform temperature, volatilizable thing was promptly got rid of to material surface migration and evaporation internally.There are low, the shortcomings such as heat transfer is inhomogeneous, the time is long, energy consumption is high, dry mass difference of heat transfer efficiency in the conventional drying method.But therefore this method still occupies an leading position in actual production at present owing to have advantages such as technical maturity, charge are big.
Vacuum drying is meant that under vacuum condition material being carried out drying deviates from contained volatilizable thing in the material.Under same temperature, because making the interior volatilizable thing of material move institute's energy requirement, reduces low pressure, volatilizable thing is accelerated to the migration velocity and the evaporation rate on surface in the material, so when reaching identical degree of drying, vacuum drying is short more than the needed time of conventional drying.In addition, under the low pressure condition, the oxygen rareness in the drying medium, little because of the material variable color that heat effect and oxidation cause, can keep the natural colored of material substantially.Therefore, vacuum drying is a low temperature, dry technology fast, has very important using value in the drying of difficult dry substance, precious material, timber floor, wood-based plate, laminate, temperature-sensitive material, optical articles, circuit board, paper, medicine, leather, inflammable and explosive dangerous material etc.But, owing to fail to solve the problem that material is heated fast under the vacuum condition effectively for a long time, so vacuum drying technique is still very limited in the application of industries such as timber, timber floor, wood-based plate, laminate, leather, optical articles, circuit board.
Existing vacuum dryer generally is made up of drying box, filler strip or backing plate, heating system, pumped vacuum systems, process parameter monitoring system etc.Drying box is to carry out the carrier that dry materials is deviate from volatilizable thing, and casing has vacuum orifice, the import and export that heat transfer medium is arranged, the interface that mounting process parameter monitoring instrument and meter probe or cable are arranged that link to each other with pumped vacuum systems, hermatic door and load and opener are arranged; Filler strip or backing plate are that the material pad that interlayer is piled up in drying box is put thing; Heating system provides origin of heat for dry materials, and the heat transfer medium of employing can be water vapour, heat kerosene or other flowing materials; Pumped vacuum systems is used to drying box that vacuum environment is provided, and on its pipeline vacuum meter is installed; Process parameter monitoring system is used for monitoring and controlling dry materials and deviates from the technological parameter that volatilizable thing is produced, so that guarantee the dry materials quality.
The main deficiency of existing vacuum dryer is:
(1) filler strip piled up of material or backing plate adopt common material such as headblock bar, and heat transfer efficiency is low, and material is subjected to thermal velocity slow, and drying time is long, the energy consumption height.
(2) backing plate of hot plate type vacuum dryer and heater physical connection, connector damages easily, and the material that is dried is had specification limits and requirement, and the material handling rate is low, and material handling simultaneously and personnel pass in and out inconvenience.
(3) unit interval heating load deficiency in the drying box, tank-volumes is little, the material useful load is few.
(4) there is not appropriate design structure reinforcement in the drying box, in the time of making the drying box of big volume, material cost and manufacturing cost height.
(5) cabinet exterior does not have the covering and heat insulating layer, and thermal loss speed is fast, heat dissipation capacity is big, has increased energy consumption.
(6) production efficiency is low, operating cost is high, the incompatibility requirement of mass production.
Vacuum drying method can be divided into batch (-type) vacuum drying and continuous vacuum drying again.
The batch (-type) vacuum drying be meant in the dry materials process according to " normal pressure → vacuum → normal pressure → vacuum → normal pressure → ... ... → constant pressure and dry finishes " carry out, be material from atmospheric pressure state forward to carry out a period of time drying under the vacuum condition after, return to atmospheric pressure state a period of time, under vacuum condition, carry out a period of time drying again, return to atmospheric pressure state a period of time again, drying is carried out in circulation so repeatedly, meet the requirements of drought index up to material, return to atmospheric pressure state at last, whole dry run finishes, and has at least two stages to be in vacuum state in whole dry run.
The continuous vacuum drying is meant in the dry materials process carries out according to " normal pressure → vacuum → constant pressure and dry finishes ", to be material from atmospheric pressure state forward to carries out drying and meets the requirements of drought index up to material under the vacuum condition, return to atmospheric pressure state at last, whole dry run finishes, and only has a stage to be in vacuum state in whole dry run.
The main deficiency of existing vacuum drying method is:
(1) complex manufacturing needs skilled operating personnel;
(2) thermal loss is big, energy consumption is higher;
(3) dry mass instability;
(4) production run cost height.
In order to solve the deficiency of existing dry technology, therefore press for and invent the method and apparatus that the volatilizable thing of material is deviate from the new type of continuous vacuum drying with following advantage:
(1) significantly shorten drying time, enhance productivity, energy consumption is low;
(2) the dry materials quality is good;
(3) drying process is simple, and is easy to operate;
(4) tank-volumes is big, and useful load is big, and the production run cost is low;
(5) load conveniently the charging ratio height;
(6) desinsection, mildew-resistant, degreasing, elimination peculiar smell etc. are arranged.
(7) equipment and materials and low cost of manufacture.
Summary of the invention
The method and apparatus of the volatilizable thing of material is deviate from new type of continuous vacuum drying of the present invention, be intended to provide and realize that continuous quick drying is deviate from the volatilizable thing of material under the continous vacuum condition, reach and shorten drying time, improve drying efficiency and dry mass, fall that energy consumption is low, useful load big, satisfy purpose such as requirements of mass production.
The equipment of the volatilizable thing of material is deviate from new type of continuous vacuum drying of the present invention, it is characterized in that: adopt metal material to make filler strip or backing plate with high thermal conductivity, filler strip or backing plate not with casing in heater and other members be mutually permanently connected, can move freely arbitrarily, the structure of filler strip or backing plate is hollow or solid, and there is shrouding its termination or does not have shrouding; Except that near the internal face place having heaters, also has auxiliary heater in the casing in direction perpendicular to the ground and away from cabinet wall face place; Casing is except that outside wall surface has the vertical and horizontal reinforcement, and each face intersection of cabinet wall face also has the structure reinforcement; Casing is except that end face has vacuum orifice, and also there is vacuum orifice its side.
The equipment of the volatilizable thing of material is deviate from new type of continuous vacuum drying of the present invention, employing has the metal material of high thermal conductivity and makes filler strip or backing plate, the suitable material with high thermal conductivity is a metal material, as metallic aluminium, perhaps aluminium alloy, perhaps other metals, its role is to the filler strip when piling up as material, also obtain simultaneously the heat conduction medium of heat fast from heater as material, because the thermal conductivity of metal is more than hundreds of times of air, metallic aluminium for example, metallic copper is respectively 1000 times and 1500 times of air thermal conductivity, therefore solved under the vacuum environment material slow-footed difficult problem of being heated, promptly adopt filler strip with high thermal conductivity or backing plate as the media of conduction heat between heater and the material under the continous vacuum condition, improve material and be subjected to thermal velocity, thereby accelerated the speed that volatilizable thing moves and evaporates in the material, and then can under the continous vacuum environment, deviate from the volatilizable thing of material by continuous drying.The structure of filler strip or backing plate can be that hollow or solid termination has shrouding or do not have the metal aluminum strip or the aluminium sheet of shrouding, or there is shrouding hollow or solid termination or does not have the aluminum alloy bar or the aluminium alloy plate of shrouding, or there is shrouding hollow or solid termination or does not have other bonding jumpers or the metallic plate of shrouding; Metallic aluminium filler strip or aluminium backing plate, perhaps aluminium alloy filler strip or aluminium alloy backing plate, perhaps other metal filler strip or backing plates, not with drying box in heater and other members be mutually permanently connected, can move freely arbitrarily, thereby material loads and personnel pass in and out convenience.It can be " worker " shape that there are the metal filler strip of shrouding or backing plate in the termination, perhaps "T"-shaped, perhaps other shapes, its role is to make between material and filler strip or raft when placing to press mutually between can levels and pull, cause filler strip or backing plate and heater loose contact to prevent the when filling with substance displacement, influence the transmission of heat, also can increase simultaneously the thermal interface that is subjected to of itself and heater.Equipment of the present invention is by taking this design, can increase substantially filler strip or backing plate to the speed that material conducts heat, and significantly improves the thermal velocity that is subjected to of material, and the remarkable result that can reach is: significantly shorten drying time, improve drying efficiency, cut down the consumption of energy etc.
The equipment of the volatilizable thing of material is deviate from new type of continuous vacuum drying of the present invention, remove near the internal face place in its casing independently one or more groups heater is arranged separately, perhaps have beyond a row or multi-row heater, also have separately independently one or more groups auxiliary heater in direction perpendicular to the ground and away from cabinet wall face place, a row or multi-row auxiliary heater is perhaps arranged.One group of heater is meant independently a heat transfer medium import and the corresponding with it heater of heat transfer medium outlet independently, and row's heater has been meant independently one or more groups heater.The remarkable result that the aforesaid heater of arranging in casing reaches is: efficiently solve dry materials and deviate from the under-supply difficult problem of volatilizable thing institute's calorific requirement, promptly in the unit interval, deviate from volatilizable thing enough origin of heat are provided for dry materials in the case, the auxiliary heater of particularly in case, arranging, efficiently solve away from the under-supply difficult problem of cabinet wall face place heat, also make interior environment temperature of case and temperature of charge more become even simultaneously.The present invention is by taking this design, simultaneously have the metal filler strip of high thermal conductivity or metal caul as the media of conduction heat between heater and the material under the continous vacuum condition by means of employing, the remarkable result that can reach is: significantly shorten drying time, improve drying efficiency and dry materials quality, cut down the consumption of energy, increase tank-volumes etc.
The equipment of the volatilizable thing of material is deviate from new type of continuous vacuum drying of the present invention, and casing is except that outside wall surface has the vertical and horizontal reinforcement, and each face intersection of cabinet wall face also has the structure reinforcement.A plurality of structure reinforcements that each face intersection of cabinet wall face is arranged; it can be the set square shape; or other shapes; its principle is the section of structure reinforcement position is expanded to polygon such as octagon greater than four limits by quadrangle; so that the pressure that disperses each limit to bear; its role is to utilize the structure reinforcement of special shape to protect weld seam, and improve the integrally-built compressive resistance of casing.The present invention is by taking this design, and the remarkable result that can reach is: increase tank-volumes, significantly save material cost and the manufacturing cost of making casing.
The equipment of the volatilizable thing of material is deviate from new type of continuous vacuum drying of the present invention, the end face of its casing all has the vacuum orifice that links to each other with pumped vacuum systems with the side, they can be opened simultaneously and vacuumize, also can open separately and vacuumize, perhaps alternately unlatching vacuumizes, and can accelerate eliminating speed and the tandem-driving bogie indoor environment temperature of volatilizable thing outside case that dry materials is deviate from.The present invention is by taking this design, and the remarkable result that can reach is: significantly shorten drying time, improve dry mass.
The method of the volatilizable thing of material is deviate from new type of continuous vacuum drying of the present invention, it is characterized in that: the metal filler strip of material and high thermal conductivity or backing plate interlayer in case is placed, and the interior heater of the termination of metal filler strip or backing plate and case closely contacts; Material is preheated to and stops heating after the set point of temperature, and carries out the insulation Balance Treatment of stipulated time with this understanding, continues heating then, vacuumizes and control the vacuum pumping speed simultaneously, material in the continous vacuum environment progressively continuous drying deviate from volatilizable thing; After each processing parameter reaches set quota simultaneously, stop to heat and vacuumizing, material carries out the vacuum heat-preserving Balance Treatment of stipulated time under this vacuum condition.
Deviate from the method for the volatilizable thing of material in new type of continuous vacuum drying of the present invention, there is shrouding the hollow or solid termination that employing has a high thermal conductivity or does not have the bonding jumper of shrouding or metallic plate material interlayer is placed in casing filler strip or backing plate when deviating from volatilizable thing as dry materials, also obtains the heat conduction medium of heat simultaneously fast from heater as material; Heater in the termination of metal filler strip or metal caul and the case closely contacts, and its role is to more effectively give material from heater obtaining heat amount and conduction.The present invention is by taking this technology, can increase substantially filler strip or backing plate to the speed that material conducts heat, and significantly improves the thermal velocity that is subjected to of material, and the remarkable result that can reach is: significantly shorten drying time, improve drying efficiency, cut down the consumption of energy etc.
Deviate from the method for the volatilizable thing of material in new type of continuous vacuum drying of the present invention, heating system stops heating after material is preheated to set point of temperature, and carry out the insulation Balance Treatment of stipulated time with this understanding, the effect of preheating is to make material and contained volatilizable thing thereof to obtain energy, the insulation Balance Treatment then is that reduction material surface and internal temperature are poor, helps improving dry mass.Then, when continuing heating, open pumped vacuum systems, pumped vacuum systems is in the volatilizable thing pump drainage outlet chamber that dry materials is deviate from, progressively the vacuum with the case chamber raises continuously, material in this continous vacuum environment progressively continuous drying deviate from volatilizable thing, volatilizable thing content is reduced to setting in material; Deviate from the process of volatilizable thing at dry materials, the vacuum pumping speed of control pumped vacuum systems, guarantee volatilizable thing in the material to the amount of surface migration greater than the amount of volatilizable thing from surface evaporation, make the material surface be in wetting state all the time, reduce or avoid material seasoning defect drying defect to occur.The present invention is by taking this technology, can be implemented in the continous vacuum environment continuous drying and deviate from volatilizable thing, the remarkable result that can reach is: shorten drying time, raise the efficiency, improve dry mass, reduce thermal loss and cut down the consumption of energy desinsection, degreasing, mildew-resistant, taste removal etc. simultaneously.
Deviate from the method for the volatilizable thing of material in new type of continuous vacuum drying of the present invention, after the vacuum of volatilizable thing content, material surface temperature and internal temperature, case chamber and environment temperature etc. reach set quota simultaneously in processing parameter such as the material, stop to heat and vacuumizing, material carries out the vacuum heat-preserving Balance Treatment of stipulated time under this vacuum condition, its role is to make material surface and internal temperature, material surface and inner volatilizable thing content to be tending towards as far as possible evenly eliminating the material inside and outside local stress simultaneously.The present invention is by taking this technology, and the remarkable result that can reach is: reduce or avoid material seasoning defect drying defect to occur, improve the dry materials quality.
It is as follows that the actual method and apparatus that adopts new type of continuous vacuum drying of the present invention to deviate from the volatilizable thing of material carries out the example that dry materials production in enormous quantities obtains remarkable result:
(a) adopt method and apparatus of the present invention, dry thickness is difficult bole---the lignum cinnamomi camphorae of 7cm, is dried to moisture content 10% from moisture content 60%, only need about 70 hours, and dry mass is good.And adopt the conventional drying method, even through about 50 days drying, its moisture content is minimum also can only to be reached about 12%, and can not guarantee dry mass.
(b) adopt method and apparatus of the present invention, dry thickness is the difficult bole of 4cm---class redwood such as red acid branch, red wingceltis, red sandalwood, rosewood, be dried to moisture content 10% from moisture content 60%, and only need about 50 hours, and dry mass is good.And adopt the conventional drying method, even through about 50 days drying, its moisture content is minimum also can only to be reached about 20%, and can not guarantee dry mass.
(c) adopt method and apparatus of the present invention, dry thickness is the difficult bole of 7cm---artificial bamboo base redwood, be dried to moisture content 10% from moisture content 50%, and only need about 48 hours, and dry mass is good.And the employing air dry, even through about 200 days～250 days drying, its moisture content is minimum also can only to be reached about 20%.Though also can adopt the conventional drying method to carry out drying, drying time is long, and can produce serious seasoning defect drying defect.
The continuous vacuum drying that the present invention proposes is deviate from the method and apparatus of the volatilizable thing of material, and its basic functional principle is:
(a) it is indoor that the metal filler strip of high thermal conductivity or backing plate and material bed are placed on case; Then, heating system heats to heat transfer medium, and heat transfer medium is the indoor heater heat supply of case, and conduct heat to material with metal filler strip with high thermal conductivity or the backing plate that heater closely contacts the termination, and material is preheated thereupon.Because material is from slow from heater obtaining heat amount speed under vacuum condition, and metal filler strip or backing plate with high thermal conductivity are heated heat transfer soon, so metal filler strip or backing plate pass to material quickly to the heat that obtains from heater, impel the migration of volatilizable thing in the material and evaporation rate to accelerate.
(b) material stops heating after being preheated to set point of temperature, and be incubated balance with this understanding to the stipulated time, the effect of preheating is to make material and contained volatilizable thing thereof to obtain energy, and the insulation Balance Treatment then is that reduction material surface and internal temperature are poor, helps improving dry mass.Then when continuing heating, open pumped vacuum systems, pumped vacuum systems is when the volatilizable thing that dry materials is deviate from is extracted the case chamber out, material in this continous vacuum environment progressively continuous drying deviate from volatilizable thing, the pumped vacuum systems volatilizable thing content that then progressively the vacuum of case chamber raise continuously in material is reduced to setting.Under vacuum condition, volatilizable thing migration and evaporation institute calorific requirement are lacked than institute's calorific requirement under the condition of normal pressure in the material, and therefore the migration velocity of volatilizable thing and evaporation rate are accelerated in the material.Simultaneously, from the volatilizable thing that the material inner drying is deviate from, the system that is evacuated continuously is pumped to outside the case, has reduced the saturated concentration of volatilizable thing in the case, has further accelerated the migration and the evaporation rate of volatilizable thing in the material again.
(c) deviate from the process of volatilizable thing at dry materials, the vacuum pumping speed of control pumped vacuum systems, guarantee volatilizable thing in the material to the amount of surface migration greater than the amount of volatilizable thing from surface evaporation, its effect is to make the material surface be in wetting state all the time, reduce or avoid material seasoning defect drying defect to occur, thereby improve the dry mass of material.
(d) after the vacuum of volatilizable thing content, material surface temperature and internal temperature, case chamber and environment temperature etc. reach set quota simultaneously in processing parameter such as the material, stop to heat and vacuumizing, material carries out the vacuum heat-preserving Balance Treatment of stipulated time under this vacuum condition, its role is to make material surface and internal temperature, material surface and inner volatilizable thing content to be tending towards even as far as possible, eliminate the material inside and outside local stress simultaneously, thereby further guarantee the dry mass of material.
The continuous vacuum drying that adopts the present invention to propose is deviate from the method and apparatus of the volatilizable thing of material, carries out drying and deviates from the complete process process of the volatilizable thing of material and be:
(a) material is placed in the case with metal filler strip or metal caul interlayer with high thermal conductivity, and metal filler strip or metal caul closely contact with heater.
(b) open heating system and give case interior heater heat supply, filler strip or backing plate with high thermal conductivity will conduct to material from the heat that heater obtains, and material is preheated thereupon.
(c) material is preheated to set point of temperature and is incubated balance with this understanding to the stipulated time, then when continuing heating, open pumped vacuum systems, pumped vacuum systems is in the volatilizable thing pump drainage outlet chamber that dry materials is deviate from, material in this continous vacuum environment progressively continuous drying deviate from volatilizable thing, the pumped vacuum systems volatilizable thing content that then progressively the vacuum of case chamber raise continuously in material is reduced to setting.
(d) continuous drying is deviate from the process of the volatilizable thing of material under the continous vacuum condition, environment temperature, material surface temperature, material internal temperature in the omnidistance continuous monitoring case, and carry out adjustment control by the control valve of heat transfer medium turnover heater; Vacuum in the omnidistance continuous monitoring case, and control vacuum pumping speed make the material surface be in wetting state all the time, reduce or avoid material seasoning defect drying defect to occur, guarantee dry mass; The change procedure of volatilizable thing content in the omnidistance continuous monitoring material, with volatilizable thing content in the convenient control material in prescribed limit.
(e) vacuum of volatilizable thing content, case chamber and parameters such as environment temperature, material surface temperature and internal temperature reach setting simultaneously in material, can stop to heat and vacuumizing, material carries out the vacuum heat-preserving Balance Treatment of stipulated time under this vacuum condition.
(f) after material is finished the vacuum heat-preserving Balance Treatment of stipulated time, the case chamber is returned to atmospheric pressure state and the discharging of unpacking.
The method and apparatus of the volatilizable thing of material is deviate from new type of continuous vacuum drying of the present invention, compared with prior art, has following remarkable result and advantage:
(a) significantly shorten drying time, enhance productivity, save energy consumption;
(b) the dry materials quality is good;
(c) load conveniently the charging ratio height;
(d) volume of equipment is big, and useful load is big, satisfies requirement of mass production, and the production run cost is low;
(e) production technology is simple;
(f) desinsection, mildew-resistant, degreasing, taste removal etc.
The present invention is specially adapted to dry materials such as timber, timber floor, wood-based plate, laminate, leather, temperature-sensitive material, optical articles, circuit board, medicine, paper, inflammable and explosive dangerous material and deviates from volatilizable thing, as moisture, organic volatile etc.
Description of drawings
Fig. 1～Fig. 2 is in order to illustrate that new type of continuous vacuum drying proposed by the invention deviates from the sketch map of 1 specific embodiment of the method and apparatus of the volatilizable thing of material.
The specific embodiment
Describe example of the present invention in detail according to accompanying drawing below.
New type of continuous vacuum drying proposed by the invention is deviate from the sketch map of 1 specific embodiment of the equipment of the volatilizable thing of material and is seen Fig. 1 and Fig. 2.
Fig. 1 has loaded the sketch map of analysing and observe of material and filler strip for the case chamber, and shown in the figure: filler strip 2 is placed with material 3 interlayers in the cube shaped case chamber 1; The casing top wall portion has vacuum orifice 4, and side wall portion has vacuum orifice 8; The casing top wall portion has volatilizable thing content parameter analyzer probe cable interface 5 in the material; There are case chamber 1 interior environment temperature parametric measurement instrument probe interface 6, material internal temperature parametric measurement instrument probe interface 9, material surface temperature parametric measurement instrument probe interface 10 in wall box portion; Cabinet wall face place having heaters 15; Heat-insulation layer 16; Box body wall 17; Heat transfer medium is imported and exported (7,11,12,13,14,18); The structure reinforcement 19 of cabinet wall face intersection; Direction perpendicular to the ground and away from the heater 20 at cabinet wall face place.
Fig. 2 does not have the sketch map of analysing and observe of loaded material and filler strip for the case chamber, and shown in the figure: the casing top wall portion has vacuum orifice 4; Volatilizable thing content parameter analyzer probe cable interface 5 in the material of casing top wall portion; Heat-insulation layer 16; The structure reinforcement 19 of cabinet wall face intersection; Direction perpendicular to the ground and away from the heater 20 at cabinet wall face place; Hermatic door 21; Hermatic door load and opener 22; The indoor thin plate 23 that covers on the diapire face heater of case; Heat transfer medium is imported and exported (24,25,26,27).
The vertical and horizontal structural bead of not shown cabinet exterior face among Fig. 1 and Fig. 2.
Adopt new type of continuous vacuum drying proposed by the invention to deviate from the method and apparatus of the volatilizable thing of material, carry out drying and deviate from the complete production process of the volatilizable thing of material and be:
(a) material 3 is placed in the case chamber 1 with filler strip 2 interlayers with high thermal conductivity, and filler strip closely contacts with heater 20 with heater 15.
(b) open heating system and give heater 15 and heater 20 heat supplies in the case chamber 1, have the heat transferred material that the filler strip 2 of high thermal conductivity will obtain from heater, material is preheated thereupon.
(c) material is preheated to set point of temperature, be preheated to 85 ℃ during for example dry lignum cinnamomi camphorae, and be incubated balance with this understanding to the stipulated time, then when continuing heating, open pumped vacuum systems, pumped vacuum systems in the volatilizable thing pump drainage outlet chamber 1 that dry materials is deviate from, material in this continous vacuum environment progressively continuous drying deviate from volatilizable thing, the pumped vacuum systems volatilizable thing content that then progressively the vacuum of case chamber 1 raise continuously in material is reduced to setting.
(d) continuous drying is deviate from the process of the volatilizable thing of material under the continous vacuum condition, environment temperature, material surface temperature, material internal temperature in the omnidistance continuous monitoring case, and carry out adjustment control by the control valve of heat transfer medium turnover heater; Vacuum in the omnidistance continuous monitoring case, and control vacuum pumping speed make the material surface be in wetting state all the time, reduce or avoid material seasoning defect drying defect to occur, improve dry mass; The change procedure of volatilizable thing content in the omnidistance continuous monitoring material, with volatilizable thing content in the convenient control material in prescribed limit.
(e) vacuum of volatilizable thing content, case chamber and parameters such as environment temperature, material surface temperature and internal temperature reach setting simultaneously in material, during for example dry lignum cinnamomi camphorae, when case chamber 1 vacuum is 0.090, moisture content 10%, 85 ℃ of wood surface temperature, 80 ℃ of timber internal temperatures, 85 ℃ of case chamber 1 environment temperatures, can stop to heat and vacuumizing, material carries out the vacuum heat-preserving Balance Treatment of stipulated time under this vacuum condition, for example need vacuum heat-preserving Balance Treatment 8 hours when dry lignum cinnamomi camphorae.
(f) after material is finished the vacuum heat-preserving Balance Treatment of stipulated time, case chamber 1 is returned to atmospheric pressure state and the discharging of unpacking.
In an embodiment of the present invention, heater 15 and heater 20 are the coiled pipe structure, but also can adopt other structures.
In an embodiment of the present invention, case chamber 1 has only one group of independently coll(-tube) heater near the internal face place, and what case chamber 1 was perpendicular to the ground vertically and away from the internal face place also has only one group of independently coll(-tube) heater, but also can arrange and organize independently heater more.
In an embodiment of the present invention, the hermatic door 21 of case chamber is a hemispherical dome structure, also can be square structure, the perhaps structure of other shapes.
In an embodiment of the present invention, casing has only cover hermatic door 21 and a load and an opener 22, but many cover hermatic doors and load and opener also can be arranged.
In an embodiment of the present invention, each wall intersection of cabinet wall all is welded with little triangle slab structure reinforcement 19, but also can adopt other planforms.
In an embodiment of the present invention, the vertical and horizontal of each face of cabinet exterior all are welded with some mutually perpendicular structural bead (not shown)s.
In an embodiment of the present invention, heating system adopts superheated vapour as heat transfer medium, so heat transfer medium takes the high in and low out mode to give heater 15 and heater 20 heat supplies among Fig. 1 and Fig. 2, and purpose is to make condensed water be easy to get rid of heater.But the heat transfer medium that heating system adopts also can be high temperature resistant heating agent oil, perhaps other materials.
In an embodiment of the present invention, the roof face of casing has vacuum orifice 4 and the vacuum orifice 8 that links to each other with pumped vacuum systems respectively with side wall surface.
The vacuum meter (not shown) of vacuum in the omnidistance continuous monitoring case chamber 1 is installed on the pipeline of pumped vacuum systems in an embodiment of the present invention.
In an embodiment of the present invention, be provided with the monitoring system of technological parameters such as environment temperature in the omnidistance continuous monitoring case, material surface temperature, material internal temperature, the interior volatilizable thing content of material, the interior vacuum of case.
Adopt new type of continuous vacuum drying of the present invention to deviate from the embodiment of the method and apparatus of the volatilizable thing of material, the actual dry materials that carries out is deviate from the production in enormous quantities result of volatilizable thing and is shown that the present invention has following remarkable result and advantage:
(a) significantly shorten drying time, enhance productivity, save energy consumption;
(b) the dry materials quality is good;
(c) load conveniently the charging ratio height;
(d) volume of equipment is big, and useful load is big, satisfies requirement of mass production, and the production run cost is low;
(e) production technology is simple;
(f) desinsection, mildew-resistant, degreasing, taste removal etc.
Claims (10)
1. the equipment of the volatilizable thing of material is deviate from a new type of continuous vacuum drying, it is characterized in that: adopt metal material to make filler strip or backing plate with high thermal conductivity, filler strip or backing plate not with casing in heater and other members be mutually permanently connected, can move freely arbitrarily, the structure of filler strip or backing plate is hollow or solid, and there is shrouding its termination or does not have shrouding; Except that near the internal face place having heaters, also has auxiliary heater in the casing in direction perpendicular to the ground and away from cabinet wall face place; Casing is except that outside wall surface has the vertical and horizontal reinforcement, and each face intersection of cabinet wall face also has the structure reinforcement; Casing is except that end face has vacuum orifice, and also there is vacuum orifice its side.
2. the equipment of the volatilizable thing of material is deviate from new type of continuous vacuum drying according to claim 1, it is characterized in that: above-mentioned material with high thermal conductivity is bonding jumper or metallic plate.
3. the equipment of the volatilizable thing of material is deviate from new type of continuous vacuum drying according to claim 2, it is characterized in that: above-mentioned bonding jumper or metallic plate with high thermal conductivity is hollow or solid construction, and there is shrouding the termination or does not have shrouding.
4. the equipment of the volatilizable thing of material is deviate from new type of continuous vacuum drying according to claim 1, it is characterized in that: removing near the internal face place in the above-mentioned casing has separately independently one or more groups heater, perhaps have beyond a row or multi-row heater, also have separately independently one or more groups auxiliary heater in direction perpendicular to the ground and away from cabinet wall face place, a row or multi-row auxiliary heater is perhaps arranged.
5. the equipment of the volatilizable thing of material is deviate from new type of continuous vacuum drying according to claim 1, it is characterized in that: above-mentioned casing is except that outside wall surface has the vertical and horizontal reinforcement, and each face intersection of cabinet wall face also has the structure reinforcement.
6. the equipment of the volatilizable thing of material is deviate from new type of continuous vacuum drying according to claim 1, it is characterized in that: casing is except that end face has vacuum orifice, and also there is vacuum orifice its side.
7. method that the volatilizable thing of material is deviate from the new type of continuous vacuum drying is characterized in that: the metal filler strip of material and high thermal conductivity or backing plate interlayer in case is placed, and the interior heater of the termination of metal filler strip or backing plate and case closely contacts; Material is preheated to and stops heating after the set point of temperature, and carries out the insulation Balance Treatment of stipulated time with this understanding, continues heating then, vacuumizes and control the vacuum pumping speed simultaneously, material in the continous vacuum environment progressively continuous drying deviate from volatilizable thing; After each processing parameter reaches set quota simultaneously, stop to heat and vacuumizing, material carries out the vacuum heat-preserving Balance Treatment of stipulated time under this vacuum condition.
8. the method for the volatilizable thing of material is deviate from new type of continuous vacuum drying according to claim 7, it is characterized in that: the metal filler strip of material and high thermal conductivity or backing plate interlayer in case is placed, and the interior heater of the termination of metal filler strip or backing plate and case closely contacts.
9. the method for the volatilizable thing of material is deviate from new type of continuous vacuum drying according to claim 7, it is characterized in that: material stops heating after being preheated to set point of temperature, and carry out the insulation Balance Treatment of stipulated time with this understanding, continue heating then, vacuumize and control the vacuum pumping speed simultaneously, material in the continous vacuum environment progressively continuous drying deviate from volatilizable thing.
10. the method for the volatilizable thing of material is deviate from new type of continuous vacuum drying according to claim 7, it is characterized in that: after each processing parameter reaches set quota simultaneously, stop to heat and vacuumizing, material carries out the vacuum heat-preserving Balance Treatment of stipulated time under this vacuum condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910206155XA CN102042745A (en) | 2009-10-12 | 2009-10-12 | Novel method and equipment for separating volatilizable material from material by continuous vacuum drying |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910206155XA CN102042745A (en) | 2009-10-12 | 2009-10-12 | Novel method and equipment for separating volatilizable material from material by continuous vacuum drying |
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| CN102042745A true CN102042745A (en) | 2011-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910206155XA Pending CN102042745A (en) | 2009-10-12 | 2009-10-12 | Novel method and equipment for separating volatilizable material from material by continuous vacuum drying |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425922A (en) * | 2011-11-22 | 2012-04-25 | 洛阳伟信电子科技有限公司 | Drying device of electroplated board with high cleanliness |
| CN102840741A (en) * | 2011-06-23 | 2012-12-26 | 苏州五方光电科技有限公司 | Lens drying device |
| CN102865722A (en) * | 2012-10-16 | 2013-01-09 | 立德泰勀(上海)科学仪器有限公司 | Internal heating type vacuum drying oven |
| CN108411051A (en) * | 2018-04-11 | 2018-08-17 | 浙江富邦汽车内饰科技股份有限公司 | A kind of swinging smell processor |
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2009
- 2009-10-12 CN CN200910206155XA patent/CN102042745A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840741A (en) * | 2011-06-23 | 2012-12-26 | 苏州五方光电科技有限公司 | Lens drying device |
| CN102840741B (en) * | 2011-06-23 | 2015-06-03 | 苏州五方光电科技有限公司 | Lens drying device |
| CN102425922A (en) * | 2011-11-22 | 2012-04-25 | 洛阳伟信电子科技有限公司 | Drying device of electroplated board with high cleanliness |
| CN102425922B (en) * | 2011-11-22 | 2015-04-08 | 洛阳伟信电子科技有限公司 | Drying device of electroplated board with high cleanliness |
| CN102865722A (en) * | 2012-10-16 | 2013-01-09 | 立德泰勀(上海)科学仪器有限公司 | Internal heating type vacuum drying oven |
| CN108411051A (en) * | 2018-04-11 | 2018-08-17 | 浙江富邦汽车内饰科技股份有限公司 | A kind of swinging smell processor |
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Application publication date: 20110504 |