CN102338557B - Tape casting machine drying oven with heat recovery function and drying method - Google Patents

Tape casting machine drying oven with heat recovery function and drying method Download PDF

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Publication number
CN102338557B
CN102338557B CN2011102364140A CN201110236414A CN102338557B CN 102338557 B CN102338557 B CN 102338557B CN 2011102364140 A CN2011102364140 A CN 2011102364140A CN 201110236414 A CN201110236414 A CN 201110236414A CN 102338557 B CN102338557 B CN 102338557B
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China
Prior art keywords
air
drying
fan
drying alley
inlet
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CN2011102364140A
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Chinese (zh)
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CN102338557A (en
Inventor
杨传民
藏润清
王心宇
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天津商业大学
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Abstract

The invention discloses a tape casting machine drying oven with a heat recovery function and a drying method. According to the invention, heat of damp-hot air in the tape casting machine drying oven can be recycled, energy consumption can be reduced and the effect of energy saving is further achieved. An air outlet of an air supply fan is connected with an air inlet of a drying tunnel through a heating box, a return air port of the drying tunnel is connected with an air inlet of a return air fan through a return air channel, an air outlet of the return air fan is connected with the air inlet of the drying tunnel; an air exhaust port of the drying tunnel is connected with an air inlet of an air exhaust fan through an air exhaust channel, one path of an air outlet of the air exhaust fan is connected with the air inlet of the air supply fan through a first air valve, the other path of an air outlet of the air exhaust fan is connected with an air exhaust inlet of a hot air recovery heat exchanger through a second air valve, and a fresh air outlet of the hot air recovery heat exchanger is connected with the air inlet of the air supply fan through a third air valve. The drying oven can send the damp-hot air to the air supply fan through the air exhaust fan and directly send the exhausted damp-hot air to the drying tunnel, thus reaching the purposes of hot air heat recovery and energy saving.

Description

Casting machine drying baker and furnace drying method with energy recovery function
Technical field
The present invention relates to a kind of casting machine drying baker and furnace drying method with energy recovery function.
Background technology
Casting films after the casting machine curtain coating enters drying baker and carries out drying.At present, the drying alley of the drying baker of casting machine is provided with air inlet, exhaust outlet and return air inlet, breeze fan is connected with air inlet on the drying alley by heating cabinet, to deliver in the drying alley after the new wind heating, hot blast flows in drying alley, the damp and hot wind process of part return air fan is delivered to the air inlet of drying alley, realizes hot air circulation, is conducive to the drying of casting films; The damp and hot wind of another part is discharged through exhaust outlet.Higher through the damp and hot wind-warm syndrome degree that exhaust outlet is discharged, have certain heat energy, be discharged into the energy consumption that has increased dryer in the air, cause the waste of a large amount of energy.
Summary of the invention
The present invention is in order to overcome weak point of the prior art, a kind of casting machine drying baker and drying means with energy recovery function to be provided, can reclaim the heat energy of the damp and hot wind of casting machine drying baker, cut down the consumption of energy, reaching purpose of energy saving.
The present invention is achieved through the following technical solutions:
A kind of casting machine drying baker with energy recovery function, it is characterized in that, comprise that drying alley, breeze fan, heating cabinet, air draft blower fan, return air fan, hot blast reclaim heat exchanger, described drying alley is provided with air inlet, exhaust outlet and return air inlet, the air outlet of breeze fan is connected with the air inlet of drying alley by heating cabinet, return air inlet on the drying alley is connected with the air inlet of return air fan by return air channel, and the air outlet of return air fan is connected with the air inlet of drying alley; The exhaust outlet of described drying alley is connected by the air inlet of air exhaust passage with the air draft blower fan, the air outlet of described air draft blower fan is leaded up to first air-valve and is connected with the air inlet of breeze fan, another road is connected with the air draft import that hot blast reclaims heat exchanger by second air-valve, and the new wind outlet that described hot blast reclaims heat exchanger is connected with the air inlet of breeze fan by the 3rd air-valve.
Described hot blast reclaims on heat exchanger wind exhausting outlet and the fresh inlet and is separately installed with the 4th air-valve and tendencies valve.
Temperature sensor and humidity sensor are installed in the described drying alley, described temperature sensor is connected with the temperature-humidity signal input of automatic controller respectively with humidity sensor, the control signal output of described automatic controller respectively with the heating control end of heating cabinet, breeze fan, the air draft blower fan, return air fan, first air-valve between air draft blower fan and the breeze fan, air draft blower fan and hot blast reclaim second air-valve of heat exchanger air draft import department, hot blast reclaims the 3rd air-valve in the new wind of heat exchanger exit, hot blast reclaims the 4th air-valve at heat exchanger wind exhausting outlet place, the tendencies valve that hot blast reclaims heat exchanger fresh inlet place connects.
A kind of method of using above-mentioned casting machine drying baker realization casting films with energy recovery function to dry is characterized in that, comprises the steps:
(1) casting films is placed in the drying alley, when the air in the drying alley does not reach design temperature and humidity, wind exhausting outlet and fresh inlet are closed simultaneously, form two inner cycle channels: drying alley return air inlet → return air fan → drying alley air inlet → drying alley → drying alley return air inlet forms an interior circulation air path, and drying alley exhaust outlet → air draft blower fan → breeze fan air inlet → heating cabinet → drying alley air inlet → drying alley → drying alley exhaust outlet forms another interior circulation air path;
(2) when the air in the drying alley reaches design temperature and humidity, wind exhausting outlet and fresh inlet are opened simultaneously, close first air-valve between air draft blower fan and the breeze fan, hot and humid gas enters hot blast and reclaims heat exchanger, the new wind of low temperature and low humidity of coming in from fresh inlet carries out heat exchange through hot blast recovery heat exchanger and hot and humid gas, enter by breeze fan and heating cabinet afterwards and heat casting films in the drying alley, reach requirement up to the casting films drying.
The present invention has following technique effect:
1, the exhaust outlet of casting machine drying baker of the present invention connects the air draft blower fan by air exhaust passage, damp and hot wind is delivered to the air inlet of breeze fan by the air draft blower fan, directly send into the damp and hot wind of discharging in the drying alley, form the interior circulation of hot blast of sealing, both had draught effect, thermostatic effect had been arranged again.Because the new wind of no low temperature enters and the discharge of hot blast, and has reclaimed the heat of hot blast, avoided the waste of heat energy, reach purpose of energy saving.
2, the exhaust outlet of casting machine drying baker of the present invention is connected with hot blast recovery heat exchanger by air exhaust passage and air draft blower fan, enter and enter heating cabinet by breeze fan again after the new wind of low temperature that hot blast reclaims heat exchanger absorbs the air draft heat, improved the new wind-warm syndrome degree that enters in the heating cabinet, afterwards, new wind after the heating enters the dry casting films of drying alley again, can save the energy that heating cabinet is used for the new wind of heating, thereby cut down the consumption of energy, reach purpose of energy saving.
Description of drawings
Fig. 1 has the schematic diagram of the casting machine drying baker of energy recovery function for the present invention.
The specific embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
Fig. 1 has the schematic diagram of the casting machine drying baker of energy recovery function for the present invention, comprise that drying alley 3, breeze fan 1, heating cabinet 2, air draft blower fan 5, return air fan 4, hot blast reclaim heat exchanger 6, described drying alley 3 is provided with air inlet, exhaust outlet and return air inlet, the air outlet of breeze fan 1 is connected with the air inlet of drying alley 3 by heating cabinet 2, return air inlet on the drying alley 3 is connected by the air inlet of return air channel with return air fan 4, and the air outlet of return air fan 4 is connected with the air inlet of drying alley 3.The exhaust outlet of described drying alley 3 is connected by the air inlet of air exhaust passage with air draft blower fan 5, the air outlet of described air draft blower fan 5 is leaded up to first air-valve and is connected with the air inlet of breeze fan 1, another road is connected with the air draft import 10 that hot blast reclaims heat exchanger by second air-valve, and the new wind outlet 9 that described hot blast reclaims heat exchanger 6 is connected with the air inlet of breeze fan by the 3rd air-valve.
In order to realize automatic control, hot blast reclaims on heat exchanger wind exhausting outlet 8 and the fresh inlet 7 and is separately installed with the 4th air-valve and tendencies valve.Temperature sensor and humidity sensor are installed in the described drying alley, described temperature sensor is connected with the temperature-humidity signal input of automatic controller respectively with humidity sensor, the control signal output of described automatic controller respectively with the heating control end of heating cabinet, breeze fan, the air draft blower fan, return air fan, first air-valve between air draft blower fan and the breeze fan, air draft blower fan and hot blast reclaim second air-valve of heat exchanger air draft import department, hot blast reclaims the new wind of heat exchanger exit the 3rd air-valve, hot blast reclaims the 4th air-valve at heat exchanger wind exhausting outlet place, the tendencies valve that hot blast reclaims heat exchanger fresh inlet place connects, and realizes control automatically.
Casting machine drying baker with energy recovery function of the present invention is realized the method for casting films oven dry, comprise the steps: that casting films is placed in the drying alley, when the air in the drying alley does not reach design temperature and humidity, when wind exhausting outlet 8 and fresh inlet 7 are closed simultaneously, form two inner cycle channels: drying alley return air inlet → return air fan → drying alley air inlet → drying alley → drying alley return air inlet forms interior circulation air path, only plays draught effect.Drying alley exhaust outlet → air draft blower fan → breeze fan air inlet → heating cabinet → drying alley air inlet → drying alley → drying alley exhaust outlet forms another interior circulation air path, when temperature is lower than setting value, heating cabinet work makes temperature stabilization in setting range, and existing draught effect has thermostatic effect again.Because the new wind of no low temperature (environmental air) enters and the discharge of hot blast, the good heat insulating of casing and pipeline realizes that the first step is energy-conservation in addition.
When relative air humidity in the drying baker and temperature reach setting value, the water content of air is than higher in the drying baker, open the 4th air-valve on the wind exhausting outlet 8 and the tendencies valve on the fresh inlet 7 this moment simultaneously, and close first air-valve between air draft blower fan and the breeze fan.Hot and humid gas enters hot blast and reclaims heat exchanger, the new wind of low temperature and low humidity of coming in from fresh inlet carries out heat exchange through hot blast recovery heat exchanger and hot and humid gas, enter by breeze fan and heating cabinet afterwards and heat casting films in the drying alley, reach requirement up to the casting films drying.That is: indoor air → fresh inlet → hot blast reclaims heat exchanger → new wind outlet → breeze fan air inlet → heating cabinet → drying alley air inlet → drying alley exhaust outlet → air draft blower fan → hot blast and reclaims heat exchanger air draft import → hot blast recovery heat exchanger → hot blast recovery blower fan wind exhausting outlet → indoor air.Reclaim heat exchanger by hot blast this moment, utilizes the heat of air draft that new wind is heated, and reclaimed the part heat of air draft, realized that second step is energy-conservation.
Through overtesting, the improved drying baker of technical scheme of the present invention is than the energy-conservation 10-20% that reaches before improving.

Claims (4)

1. casting machine drying baker with energy recovery function, it is characterized in that, comprise that drying alley, breeze fan, heating cabinet, air draft blower fan, return air fan, hot blast reclaim heat exchanger, described drying alley is provided with air inlet, exhaust outlet and return air inlet, the air outlet of breeze fan is connected with the air inlet of drying alley by heating cabinet, return air inlet on the drying alley is connected with the air inlet of return air fan by return air channel, and the air outlet of return air fan is connected with the air inlet of drying alley; The exhaust outlet of described drying alley is connected by the air inlet of air exhaust passage with the air draft blower fan, the air outlet of described air draft blower fan is leaded up to first air-valve and is connected with the air inlet of breeze fan, another road is connected with the air draft import that hot blast reclaims heat exchanger by second air-valve, and the new wind outlet that described hot blast reclaims heat exchanger is connected with the air inlet of breeze fan by the 3rd air-valve; When wind exhausting outlet and fresh inlet are closed simultaneously, form two inner cycle channels: drying alley return air inlet → return air fan → drying alley air inlet → drying alley → drying alley return air inlet forms an interior circulation air path, and drying alley exhaust outlet → air draft blower fan → breeze fan air inlet → heating cabinet → drying alley air inlet → drying alley → drying alley exhaust outlet forms another interior circulation air path.
2. the casting machine drying baker with energy recovery function according to claim 1 is characterized in that, described hot blast reclaims on heat exchanger wind exhausting outlet and the fresh inlet and is separately installed with the 4th air-valve and tendencies valve.
3. the casting machine drying baker with energy recovery function according to claim 2, it is characterized in that, temperature sensor and humidity sensor are installed in the described drying alley, described temperature sensor is connected with the temperature-humidity signal input of automatic controller respectively with humidity sensor, the control signal output of described automatic controller respectively with the heating control end of heating cabinet, breeze fan, the air draft blower fan, return air fan, first air-valve between air draft blower fan and the breeze fan, air draft blower fan and hot blast reclaim second air-valve of heat exchanger air draft import department, hot blast reclaims the 3rd air-valve in the new wind of heat exchanger exit, hot blast reclaims the 4th air-valve at heat exchanger wind exhausting outlet place, the tendencies valve that hot blast reclaims heat exchanger fresh inlet place connects.
4. a right to use requires 3 described casting machine drying bakers with energy recovery function to realize the method for casting films oven dry, it is characterized in that, comprises the steps:
(1) casting films is placed in the drying alley, when the air in the drying alley does not reach design temperature and humidity, wind exhausting outlet and fresh inlet are closed simultaneously, form two inner cycle channels: drying alley return air inlet → return air fan → drying alley air inlet → drying alley → drying alley return air inlet forms an interior circulation air path, and drying alley exhaust outlet → air draft blower fan → breeze fan air inlet → heating cabinet → drying alley air inlet → drying alley → drying alley exhaust outlet forms another interior circulation air path;
(2) when the air in the drying alley reaches design temperature and humidity, wind exhausting outlet and fresh inlet are opened simultaneously, close first air-valve between air draft blower fan and the breeze fan, hot and humid gas enters hot blast and reclaims heat exchanger, the new wind of low temperature and low humidity of coming in from fresh inlet carries out heat exchange through hot blast recovery heat exchanger and hot and humid gas, enter by breeze fan and heating cabinet afterwards and heat casting films in the drying alley, reach requirement up to the casting films drying.
CN2011102364140A 2011-08-18 2011-08-18 Tape casting machine drying oven with heat recovery function and drying method CN102338557B (en)

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CN102338557B true CN102338557B (en) 2013-09-25

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109774333A (en) * 2019-01-10 2019-05-21 安徽省阜阳市国泰彩印包装有限公司 A kind of color printing packaging curing method

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CN102673118B (en) * 2012-04-23 2015-01-07 东莞市永淦节能科技有限公司 Energy-saving system for high-temperature heat pump of printing machinery
CN103017501A (en) * 2012-12-10 2013-04-03 胡科 Wet object drying method and wet object drying device
CN103542711B (en) * 2013-11-01 2015-05-20 烟台珈群高效节能设备有限公司 Drying tunnel achieving reheating and pressurizing of circulating air
CN104397636A (en) * 2014-11-14 2015-03-11 天津市傲绿农副产品集团股份有限公司 Black garlic fermentating and drying device
CN106382810B (en) * 2016-11-09 2019-03-22 广东五星太阳能股份有限公司 A kind of double medium solar energy drying boiler systems

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CN200975834Y (en) * 2006-11-29 2007-11-14 湖南省浏阳市择明热工器材有限公司 Low temperature drying system apparatus
CN201559281U (en) * 2009-12-23 2010-08-25 天津恒通时代电工材料科技有限公司 Ventilating system for casting machine
CN101907382A (en) * 2010-08-20 2010-12-08 昆明理工大学 Natural rubber drying system
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CN202254719U (en) * 2011-08-18 2012-05-30 天津商业大学 Casting machine drying box with heat energy recovery function

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CN2083410U (en) * 1990-07-12 1991-08-28 青岛海洋渔业公司水产品加工厂青渔水产食品有限公司 Electric heating circulate wind baking box
CN1987313A (en) * 2005-12-23 2007-06-27 艾森曼设备有限及两合公司 Dryer
CN1884944A (en) * 2006-06-30 2006-12-27 江西省科学院食品工程创新中心 Heat pump and hot blast combined drying apparatus
CN200975834Y (en) * 2006-11-29 2007-11-14 湖南省浏阳市择明热工器材有限公司 Low temperature drying system apparatus
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109774333A (en) * 2019-01-10 2019-05-21 安徽省阜阳市国泰彩印包装有限公司 A kind of color printing packaging curing method

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