CN102087071B - Alternately circulating air drying device - Google Patents
Alternately circulating air drying device Download PDFInfo
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- CN102087071B CN102087071B CN2010102830070A CN201010283007A CN102087071B CN 102087071 B CN102087071 B CN 102087071B CN 2010102830070 A CN2010102830070 A CN 2010102830070A CN 201010283007 A CN201010283007 A CN 201010283007A CN 102087071 B CN102087071 B CN 102087071B
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Abstract
The invention relates to an alternately circulating air drying device the interior of which is provided with two air-isolating plates, a compartment plate and two portable plates, wherein a baking chamber is arranged between a front wall and one of the air-isolating plates which is closer to the front wall; an air-returning layer is arranged between the two air-isolating plates; a hot air chamber is arranged between a back wall and one of the air-isolating plates which is closer to the back wall; a distance is reserved between a baseboard and lower part of the compartment plate; the upper part of the compartment plate is contacted with an upper cover plate; one portable plate is upright, is connected to the air-isolating plate which is closer to the back wall and is contacted with the upper cover plate; the other portable plate is horizontal and is partially covered on the two air-isolating plates; and the upright portable plate and the horizontal portable plate are respectively arranged at two ends of the upper parts of the air-returning layer. By changing the positions of the portable plates, the air direction inside the drying device can be forcedly turned round, thereby alternating the air direction positively and negatively at intervals, alternating an inlet end with an outlet end, keeping the consistent average baking condition for materials in the whole room within a whole baking period, shortening the baking time, and increasing the baking quality.
Description
Technical field
The present invention relates to a kind of drying equipment, the circulated air that particularly a kind of utilization replaces carries out dry equipment to material.
Background technology
During dried material, become steam and take away with distinguished and admirable the be dried water of material of flowing through, gas flow temperature descends, and humidity increases, and the water separation capability of material is reduced gradually.
This phenomenon makes a distinguished and admirable end that at first gets into material do comparatively fast; A distinguished and admirable last end through material is done slowlyer, and the two ends dewatering speed is inconsistent, and the humiture of dry wind has certain difference; Cause dehydration uneven; One end lags behind, and increase to accomplish drying drying time, has influence on the modified amount of baking of whole room lengthening drying time and material so sometimes.
Specifically, in the inlet side, baking temperature is higher, and relative humidity is lower, and material surface water evaporates is fast, otherwise lower from the end baking temperature, relative humidity is higher, and the surface moisture evaporation is slow slightly, but material surface temperature is almost equal from end and inlet side.This is because temperature and relative humidity determine evaporation rate, thereby influences surface temperature.Importantly surface temperature decision material temperature inside determines inner steam pressure, the speed that decision material internal moisture is exosmosed.If the inlet side is the inlet side forever, eternal high temperature low humidity, material surface dehydration is exosmosed faster than internal moisture, and do soon on the surface, causes surface fiber to tighten, and forms difficult permeable duricrust, slows down rate of drying.Have again, lose capillary after surface fiber is done and send outlet capacity, further make the material internal moisture difficulty of exosmosing.
For improving this phenomenon, the solution that those skilled in the art expected is, except the blower fan (like the forward blower fan) that uses single wind direction produce forward distinguished and admirable; It is oppositely distinguished and admirable also to adopt the blower fan (like reverse blower fan) of another wind direction to produce, and make that with this two ends of material can be dry, yet the efficient of forward and reverse blower fan is low; Power consumption is big; And heat exchange structure is fixed, and the distinguished and admirable heat exchanging efficient of returning when making inverse direction into gives a discount, and wind-heat efficient is all influenced.
In view of this, for solving all deficiencies in the existing dry technology, the inventor is based on the research and development of association area, and constantly test and improvement of process, and then generation of the present invention is arranged.
Summary of the invention
The object of the present invention is to provide the air-dry dry equipment of a kind of alternate cycles,, can force the wind direction in the drying equipment to turn around through the portable plate changing location; Make wind direction at interval property drag flow and anti-stream alternately, the inlet side with from end alternately, make the full room of average curing environment of material impression in whole baking cycle consistent; Thereby eliminated the difference of material humiture in the prior art, shortened stoving time, improved baking quality; In addition; Because the present invention oppositely blower fan produces oppositely distinguished and admirablely, has avoided the low shortcoming of fan efficiency anyway, thereby reach the purpose of saving power consumption.In addition, between baking, can keep the highest effect of heat exchange with unidirectional wind.
For reaching above-mentioned purpose, the present invention provides a kind of alternate cycles air-dry dry equipment, and it is enclosed to put by front wall, Hou Qiang, side wall, upper cover plate and base plate and forms, and electro-heat equipment and circulating fan are installed in described drying equipment;
Wherein: the inside of said drying equipment is provided with wind isolation board, interseptal board and portable plate; The quantity of said wind isolation board is two; In the said wind isolation board near plate of front wall and the space between the front wall between baking; Space between two wind isolation boards is the return air layer, is hot-air chamber near plate of back wall with the back space between the wall more in the said wind isolation board; Said interseptal board is parallel to said side wall, and the below of said interseptal board and base plate be provided with distance, and the top of interseptal board contacts with upper cover plate; The quantity of said portable plate is two; Wherein one is vertical state; It is connected more near contacting on the wind isolation board of back wall and with upper cover plate; Another piece is level and partly covers on two wind isolation boards that the vertical portable plate and the portable plate of level lay respectively at the two ends of return air layer top.
Preferably, described portable plate comprises first portable plate and second portable plate, its be coupling side by side more near the back wall wind isolation board above; Described first portable plate and second portable plate contact with upper cover plate rotating up when reaching vertical state; Described first portable plate and second portable plate can partly cover on two wind isolation boards respectively being rotated down when being up to the standard state; Always remain 90 degree between described first portable plate and second portable plate.
Preferably, described wherein portable plate keeps vertical state, and another piece portable plate keeps level; The portable plate of described vertical state is comparatively sliding on the wind isolation board near the back wall, and the portable plate of level covers on the said return air layer slidably; When the portable plate of said vertical state slid into an end of return air layer, the portable plate of level slid into the other end of return air layer synchronously.
Preferably, intercept between first baking by interseptal board between said baking and between second baking, and be respectively equipped with first Qianmen and second Qianmen between corresponding first baking and between second baking on the front wall.
Preferably, said interseptal board extends into the top of said return air layer.
Preferably, described electro-heat equipment is arranged in the described hot-air chamber; Described circulating fan is installed in the said wind isolation board more the below near a plate of back wall, and the air outlet of said circulating fan is towards hot-air chamber.
Preferably, the top of return air layer both sides side wall is equipped with fresh inlet; The below of return air layer both sides side wall is equipped with wet-emitting blower, and at said wet-emitting blower moisture exhausting port is installed.
Preferably, open in described fresh inlet is selected for use from the blinds that hangs down; Described moisture exhausting port selects for use external-open from the blinds that hangs down.
Preferably, described portable plate adopts motor driven gear driving, electronic pull bar, electronic threaded rod or electronic pulley to drive.
Preferably; Also be provided with temperature sensor in the said drying equipment; Said temperature sensor can be arranged in the middle of the top, base plate of hot-air chamber, the below of baking compartment plate is near the place, Qianmen or in the lower edge of baking compartment plate, and said temperature sensor is connected with the motor that the control portable plate moves through the control of data software and hardware.
Preferably; Also be provided with humidity sensor in the said drying equipment; Said humidity sensor can be arranged in the middle of the top, base plate of hot-air chamber, the below of baking compartment plate is near the lower edge of Qian Menchu, baking compartment plate or at the upper and lower of return air layer; Said humidity sensor process data software and hardware is controlled the start and stop of wet-emitting blower, and is connected with the motor of control portable plate operation.
Beneficial effect of the present invention is: alternately wind direction replaces material between high temperature low humidity (inlet side) and low temperature and high relative humidity (from end); The speed that the internal moisture of on average getting off is exosmosed and the speed of surface evaporation more can be close, help shortening stoving time, and (the same outside and inside) helps improving the quality of products; Full room is consistent; The material surface does not crust, is not in for a long time under the high temperature, and all be the lifting that helps product quality.
Description of drawings
Fig. 1 is air-dry dry equipment first working state schematic representation of alternate cycles of the present invention;
Fig. 2 is air-dry dry equipment second working state schematic representation of alternate cycles of the present invention;
Fig. 3 is the air-dry dry equipment off working state sketch map of alternate cycles of the present invention.
Description of reference numerals: 1-drying equipment; Between the 10-baking; Between 101-first baking; Between 102-second baking; The 11-front wall; 111-first Qianmen; 112-second Qianmen; Wall behind the 12-; The 13-side wall; The 14-upper cover plate; The 15-base plate; 20-return air layer; The 21-interseptal board; The 22-wind isolation board; 23-first portable plate; 24-second portable plate; The 30-hot-air chamber; The 31-electro-heat equipment; The 33-fresh inlet; The 34-wet-emitting blower.
The specific embodiment
About the present invention is the purpose that reaches above-mentioned and effect and the technological means that adopted, enumerate preferable feasible embodiment, and shown in the conjunction with figs., details are as follows at present:
At first; As depicted in figs. 1 and 2, the present invention is the air-dry dry equipment of a kind of alternate cycles, and said drying equipment 1 is enclosed to put by front wall 11, back wall 12, side wall 13, upper cover plate 14 and 15 of base plates and forms; The space that has certain volume with formation; Wherein, front wall 11 and back wall 12 positioned opposite, and front wall 11 is connected through side wall 13 with back wall 12; Above forward and backward, side wall 11,12,13, adopt upper cover plate 14 sealings (upper cover plate 14 among Fig. 1 and Fig. 2 is the part demonstration), and below forward and backward, side wall 11,12,13, said base plate 15 is set.
Be provided with interseptal board 21, wind isolation board 22, first portable plate 23 and second portable plate 24 in the inside of said drying equipment 1, wherein, the quantity of said wind isolation board 22 is two, and every wind isolation board 22 all is roughly parallel to said forward and backward wall 11,12.
Combine again shown in Figure 3, in the said wind isolation board 22 near plate of front wall 11 and the space between the front wall 11 between baking 10; Space between two wind isolation boards 22 is a return air layer 20; Be hot-air chamber 30 more in the said wind isolation board 22 near a plate of back wall 12 and the space between the back wall 12.
Between said baking 10 by interseptal board 21 intercept into first the baking between 101 and second the baking between 102; And 101,102 be respectively equipped with first Qianmen 111 and second Qianmen 112 between corresponding first, second baking on the front wall 11, be convenient to from first Qianmen 111 and second Qianmen 112 material is put between first baking between 101 and second baking 102 and between first baking, 102 take out between 101 and second baking.
Said interseptal board 21 is roughly parallel to said side wall 13, and the below of said interseptal board 21 and base plate 15 be provided with certain distance, and the top of interseptal board 21 then contacts with upper cover plate 14, and is distinguished and admirable to block.
More be connected with first portable plate 23 and second portable plate 24 side by side in the said wind isolation board 22 near the top of this piece plate of back wall 12.Described first, second portable plate 23,24 contacts with upper cover plate 14 rotating up when reaching vertical state, and is distinguished and admirable to block.When described first, second portable plate 23,24 being rotated down when being up to the standard state, then partly cover respectively on two wind isolation boards 22.In addition, said interseptal board 21 also extends into the top of said return air layer 20, when first portable plate 23 or second portable plate 24 are in vertical state, and can be distinguished and admirable with described interseptal board 21 common blocking-up.
Be provided with electro-heat equipment 31 in the said hot-air chamber 30, the material that is used in the drying device provides heat, and described electro-heat equipment 31 can be selected the hot-blast stove that has cleaner for use, discharges flue gas, more low-carbon environment-friendly thereby when heat energy is provided, reduce to the external world.
More near the below of a plate of back wall 12 the circulating fan (not shown) of often opening is installed in the said wind isolation board 22, the air outlet of described circulating fan is towards hot-air chamber 30, thereby with distinguished and admirable the entering in the hot-air chamber 30 in the return air layer 20.
Above the side wall 13 of return air layer 20 both sides, be equipped with fresh inlet 33, described fresh inlet 33 makes and extraneous distinguished and admirablely can enter into return air layer 20.
In addition, below return air layer 20 both sides side wall 13, be equipped with wet-emitting blower 34, and the moisture exhausting port (not shown) be installed at the air inlet place of said wet-emitting blower 34.Described wet-emitting blower 34 is all just opened work when needed with moisture exhausting port.
In working order down; Always remain 90 degree between described first portable plate 23 and second portable plate 24; When first portable plate 23 is in vertical state; Second portable plate 24 is in level (Fig. 1), and the hot blast that heat through electro-heat equipment 31 is because by vertical first portable plate, 23 blocks, therefore can only pass through the top of second portable plate 24 that is in level at this moment and be blown into second toast between in 102; Make hot blast pass the material in 102 between second baking from top to bottom; Hot blast enters between first baking in 101 through the below of interseptal board 21 again, and the materials that this moment, hot blast passed between first baking in 101 from bottom to top enter into after the return air layer 20, get back to via the suction of circulating fan in the hot-air chamber 30 again.
In like manner; When second portable plate 24 is in vertical state; First portable plate 23 is in level (Fig. 2), and the hot blast that heat through electro-heat equipment 31 is because by vertical second portable plate, 24 blocks, therefore can only pass through the top of first portable plate 23 that is in level at this moment and be blown into first toast between in 101; Make hot blast pass the material in 101 between first baking from top to bottom; Enter between second baking in 102 through the below of interseptal board 21, the materials that hot blast passes between second baking in 102 from bottom to top enter into after the return air layer 20, get back to via the suction of circulating fan in the hot-air chamber 30 more again.
Described first portable plate 23 and second portable plate 24 can adopt motor driven gear to drive its rotation, and the electronic pull bar of also optional usefulness, electronic threaded rod, electronic pulley or the like mode drives.Through guaranteeing first portable plate 23 and second portable plate, 24 synchronous changing locations, can force the wind direction in the drying equipment 1 to turn around, make the wind direction drag flow and anti-stream alternately of property at interval; The inlet side with from end alternately, make the full room of average curing environment of material impression in whole baking cycle consistent, thereby eliminated the difference of material humiture in the prior art; Shortened stoving time; Improved baking quality, in addition since the present invention oppositely blower fan produce oppositely distinguished and admirable; Avoid the low shortcoming of fan efficiency anyway, thereby reached the purpose of saving power consumption.In addition, between baking, can keep the highest effect of heat exchange with unidirectional wind.
Described return air layer 20 be the baking between 10 and hot-air chamber 30 between the space; The below of return air layer 20 is equipped with said circulating fan, thereby the bottom of return air layer 20 has a large amount of circulated airs to be sent to hot-air chamber 30, so return air layer 20 is negative pressuren zones; The moisture exhausting port of installing on the wet-emitting blower 34 can select for use external-open from the blinds that hangs down; Negative pressure in the return air layer 20 makes from the blinds sealing of hanging down, and when wet-emitting blower 34 starts, can open from the blinds that hangs down, thereby efflux the circulated air of high humidity.
Wherein, the described blinds that hangs down certainly is to having the air-conditioned room automatic vent of malleation.Generally rely on the deadweight of blinds and sagging naturally from the blinds that hangs down; The air exchange that isolating chamber is inside and outside; When room pressure during greater than outdoor air pressure, air-flow blows blinds open and outwards exhaust, otherwise room pressure is during less than outdoor air pressure; Air-flow can not reverse flow be gone into indoorly, therefore from the blinds that hangs down unidirectional non-return effect is arranged.
Open in described fresh inlet 33 can be preferably from the blinds that hangs down, because return air layer 20 is return air turn-around zone, return air transfers to down aweather from horizontal wind direction; Produce malleation; Help from the blinds that hangs down airtightly naturally, do not allow wind to bleed, only if when wet-emitting blower 34 effluxes in a large number; Produce negative pressure in the whole drying equipment 1, new wind is entered in the return air layer 20 by fresh inlet 33.
In addition, described circulating fan also blows to the heat-transfer surface of electro-heat equipment 31 to circulated air by return air layer 20 simultaneously, obtains the heat energy of electro-heat equipment 31, thereby the temperature that improves circulated air is replenished the heat energy of dried material and needed.Circulated air after the heating is directed between baking 10, and hot blast provides heat of vaporization moisture to material when passing material, takes away steam simultaneously; In return air layer 20, discharge a certain amount of wet wind after leaving material, and introduce the new wind of environment of equivalent, with the humidity requirement of controlled humidity to setting; And then entering hot-air chamber 30; Continue to obtain heat energy by electro-heat equipment 31, return that 10 pairs of materials dewater between baking, so constantly periodic duty.
Described first portable plate 23 and second portable plate 24 be also variable to be changed to another kind of form, is two portable plates, and wherein a portable plate keeps vertical state forever, and another piece keeps level forever.The portable plate (not shown) of described vertical state can slide on comparatively near a wind isolation board 22 of back wall 12, and the portable plate (not shown) of level then covers on the said return air layer 20 slidably.When the portable plate of said vertical state slides into an end of return air layer 20; The portable plate of level then slides into the other end of return air layer 20 synchronously; At this moment, be consistent with two portable plates taking the mode of being coupling (first portable plate 23 and second portable plate 24) role, its course of work is as above; Can be and it will be appreciated by those skilled in the art that so repeat no more.
In said drying equipment 1; Also be provided with the temperature sensor (not shown); Said temperature sensor can be arranged at that the below of 10 interseptal boards 21 between the top, baking of hot-air chamber 30 is located near Qianmen (111,112), the lower edges of 1 interseptal board 21 in the middle of the base plate 15 or between baking; Be used for monitoring in real time the temperature of hot blast in the drying equipment 1; And be connected with the motor that control portable plate (comprising first portable plate 23 and second portable plate 24) moves through the control of data software and hardware, to control the frequency of portable plate rotation/slip.
Also be provided with the humidity sensor (not shown) in the said drying equipment, the below that said humidity sensor can be arranged at 10 interseptal boards 21 between the top, baking of hot-air chamber 30 near the lower edge of 10 interseptal boards 21 in the middle of the Qian Menchu, base plate 15, between baking or above the return air layer 20, below.Said humidity sensor is connected with the motor of control portable plate operation through the start and stop of data software and hardware control wet-emitting blower 34.
Under the situation that the global cycle air quantity equates, strengthen nearly one times through the wind speed that will pass through material, help dehydration.
To sum up, the air-dry dry equipment of a kind of alternate cycles provided by the present invention, wherein alternately wind direction replaces material between high temperature low humidity (inlet side) and low temperature and high relative humidity (from end); The speed that the internal moisture of on average getting off is exosmosed and the speed of surface evaporation more can be close, help shortening stoving time, and (the same outside and inside) helps improving the quality of products; Full room is consistent; The material surface does not crust, is not in for a long time under the high temperature, and all be the lifting that helps product quality.
The above description of this invention is illustrative, and nonrestrictive, and those skilled in the art is understood, and within spirit that claim limits and scope, can carry out many modifications, variation or equivalence to it, but they will fall in protection scope of the present invention all.
Claims (10)
1. air-dry dry equipment of alternate cycles, it is enclosed to put by front wall, Hou Qiang, side wall, upper cover plate and base plate and forms, and electro-heat equipment and circulating fan are installed in described drying equipment;
It is characterized in that: the inside of said drying equipment is provided with wind isolation board, interseptal board and portable plate; The quantity of said wind isolation board is two; In the said wind isolation board near plate of front wall and the space between the front wall between baking; Space between two wind isolation boards is the return air layer, is hot-air chamber near plate of back wall with the back space between the wall more in the said wind isolation board; Said interseptal board is parallel to said side wall, and the below of said interseptal board and base plate be provided with distance, and the top of interseptal board contacts with upper cover plate; The quantity of said portable plate is two; Wherein one is vertical state; It is connected more near contacting on the wind isolation board of back wall and with upper cover plate; Another piece is level and partly covers on two wind isolation boards that the vertical portable plate and the portable plate of level lay respectively at the two ends of return air layer top.
2. the air-dry dry equipment of alternate cycles according to claim 1 is characterized in that described portable plate comprises first portable plate and second portable plate, its be coupling side by side more near the back wall wind isolation board above; Described first portable plate and second portable plate contact with upper cover plate rotating up when reaching vertical state; Described first portable plate and second portable plate can partly cover on two wind isolation boards respectively being rotated down when being up to the standard state; Always remain 90 degree between described first portable plate and second portable plate.
3. the air-dry dry equipment of alternate cycles according to claim 1 is characterized in that, described wherein portable plate keeps vertical state, and another piece portable plate keeps level; The portable plate of described vertical state is comparatively sliding on the wind isolation board near the back wall, and the portable plate of level covers on the said return air layer slidably; When the portable plate of said vertical state slid into an end of return air layer, the portable plate of level slid into the other end of return air layer synchronously.
4. the air-dry dry equipment of alternate cycles according to claim 1; It is characterized in that; Intercept between first baking by interseptal board between said baking and between second baking, and be respectively equipped with first Qianmen and second Qianmen between corresponding first baking and between second baking on the front wall.
5. the air-dry dry equipment of alternate cycles according to claim 1 is characterized in that said interseptal board extends into the top of said return air layer.
6. the air-dry dry equipment of alternate cycles according to claim 1 is characterized in that described electro-heat equipment is arranged in the described hot-air chamber; Described circulating fan is installed in the said wind isolation board more the below near a plate of back wall, and the air outlet of said circulating fan is towards hot-air chamber.
7. the air-dry dry equipment of alternate cycles according to claim 1 is characterized in that, the top of return air layer both sides side wall is equipped with fresh inlet; The below of return air layer both sides side wall is equipped with wet-emitting blower, and at said wet-emitting blower moisture exhausting port is installed.
8. the air-dry dry equipment of alternate cycles according to claim 7 is characterized in that, opens in described fresh inlet is selected for use from the blinds that hangs down; Described moisture exhausting port selects for use external-open from the blinds that hangs down.
9. according to claim 1, the air-dry dry equipment of 2 or 3 described alternate cycles, it is characterized in that described portable plate adopts motor driven gear driving, electronic pull bar, electronic threaded rod or electronic pulley to drive.
10. the air-dry dry equipment of alternate cycles according to claim 7; It is characterized in that; Also be provided with temperature sensor and humidity sensor in the said drying equipment; Said temperature sensor is arranged in the middle of the top, base plate of hot-air chamber, the below of baking compartment plate is near the place, Qianmen or in the lower edge of baking compartment plate, and said temperature sensor is connected with the motor that the control portable plate moves through the control of data software and hardware; Said humidity sensor is arranged in the middle of the top, base plate of hot-air chamber, the below of baking compartment plate is near the lower edge of Qian Menchu, baking compartment plate or at the upper and lower of return air layer; Said humidity sensor process data software and hardware is controlled the start and stop of wet-emitting blower, and is connected with the motor of control portable plate operation.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102830070A CN102087071B (en) | 2010-09-15 | 2010-09-15 | Alternately circulating air drying device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102830070A CN102087071B (en) | 2010-09-15 | 2010-09-15 | Alternately circulating air drying device |
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| Publication Number | Publication Date |
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| CN102087071A CN102087071A (en) | 2011-06-08 |
| CN102087071B true CN102087071B (en) | 2012-09-05 |
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| CN2010102830070A Active CN102087071B (en) | 2010-09-15 | 2010-09-15 | Alternately circulating air drying device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111156797A (en) * | 2020-01-23 | 2020-05-15 | 云南穗特丰农业科技有限公司 | Hot-blast adjustable dual cycle drying equipment |
| CN114453365B (en) * | 2022-01-18 | 2023-01-03 | 中环领先半导体材料有限公司 | Portable large-diameter silicon wafer box cleaning process |
| CN114909896B (en) * | 2022-04-12 | 2024-02-09 | 布勒(常州)机械有限公司 | Automatic control method and system for air quantity applied to continuous drying |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2303246Y (en) * | 1997-08-04 | 1999-01-06 | 林宗智 | Box like dryer |
| CN2370353Y (en) * | 1999-03-09 | 2000-03-22 | 张鸿飞 | Turbogrid double change-over drier |
| CN201819525U (en) * | 2010-09-15 | 2011-05-04 | 北京普照机电技术开发有限公司 | Alternative circulating air drying equipment |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08261647A (en) * | 1995-03-27 | 1996-10-11 | Chichibu Onoda Cement Corp | Drying apparatus |
| CA2516957A1 (en) * | 2003-02-28 | 2004-09-10 | Delta S Technologies Limited | Improved efficiency dehumidifier drier with reversible airflow and improved control |
| JP2007327698A (en) * | 2006-06-08 | 2007-12-20 | Toray Ind Inc | Box type drying container and powdery material or powder drying method |
-
2010
- 2010-09-15 CN CN2010102830070A patent/CN102087071B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2303246Y (en) * | 1997-08-04 | 1999-01-06 | 林宗智 | Box like dryer |
| CN2370353Y (en) * | 1999-03-09 | 2000-03-22 | 张鸿飞 | Turbogrid double change-over drier |
| CN201819525U (en) * | 2010-09-15 | 2011-05-04 | 北京普照机电技术开发有限公司 | Alternative circulating air drying equipment |
Non-Patent Citations (2)
| Title |
|---|
| JP平8-261647A 1996.10.11 |
| JP特开2007-327698A 2007.12.20 |
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