JP2007071440A - Solar-based wood and sawdust powder drying device - Google Patents

Solar-based wood and sawdust powder drying device Download PDF

Info

Publication number
JP2007071440A
JP2007071440A JP2005258204A JP2005258204A JP2007071440A JP 2007071440 A JP2007071440 A JP 2007071440A JP 2005258204 A JP2005258204 A JP 2005258204A JP 2005258204 A JP2005258204 A JP 2005258204A JP 2007071440 A JP2007071440 A JP 2007071440A
Authority
JP
Japan
Prior art keywords
drying
solar
wood
sawdust
drying chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2005258204A
Other languages
Japanese (ja)
Inventor
Kimio Kanayama
Shinya Koga
Masahiro Nakajima
Tomomi Sugawara
Kazuhiko Toda
Shoshichi Toda
正博 中島
信也 古賀
和彦 外田
昭七 外田
智美 菅原
公夫 金山
Original Assignee
Marushou Giken Kk
マルショウ技研 株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Marushou Giken Kk, マルショウ技研 株式会社 filed Critical Marushou Giken Kk
Priority to JP2005258204A priority Critical patent/JP2007071440A/en
Publication of JP2007071440A publication Critical patent/JP2007071440A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers

Abstract

PROBLEM TO BE SOLVED: To provide a solar-heated wood and sawdust drying apparatus for improving an agricultural greenhouse by low temperature drying by passive use of solar heat. The wood and sawdust drying equipment uses a ceiling made of double-layered transparent film 2 on an agricultural greenhouse and a film 6 with a carbon fiber sheet 8 overlaid on the south side. A combination of a large-sized drying chamber 1 having a semi-permeable greenhouse structure for solar radiation and solar thermal drying by solar radiation incident on the drying chamber 1 and hot air drying for blowing air heated by solar heat onto the floor of the drying chamber. Insulating cylinder 13 on the north side, which dries wooden materials such as stacked wood, and sucks and exhausts the generated humid air with a strong draft force. solar It is those composed of hot water floor heating panel 12 for performing radiation drying to complement.
[Selection] Figure 1

Description

  The present invention relates to a solar-heated wood and sawdust drying apparatus mainly using solar heat, supplemented by floor heating of wood combustion heat such as firewood, and sucking air with a draft of a heat insulating cylinder.
Conventionally, wood drying is performed by steam drying using petroleum or electric drying using a heater.
Conventional wood artificial drying is carried out by high-temperature drying (100 ° C. or higher) and rapid drying (drying days 3 to 4 days) by methods such as steam and electric methods, and the resulting drying material is bent, cracked, The quality is not good because of the occurrence of cracks.
On the other hand, for drying wood using solar heat, a method using active utilization by installing a forced circulation air collector has been attempted (see Patent Document 1).
As shown in FIG. 4, this solar thermal drying technology places an air collector with an area of 120 m 2 using a carbon fiber sheet (CF sheet) as a heat collecting material on the roof, and collects heat with a large fan. It is the active use of solar heat that is conducted by agitating the warm air generated into the drying chamber.
As a result, there is a track record of drying 11 m 3 coniferous lumber to a moisture content of 20% or less in 9 days.
Although this method was cost-effective at that time and the material of the desiccant was also good, it did not become popular due to the large power consumption and subsequent relaxation of the energy situation.
JP 63-70048 JP
  An object of this invention is to provide the solar heat utilization timber and sawdust drying apparatus which improve an agricultural greenhouse by low temperature drying by passive utilization of solar heat.
The solar-heated wood and sawdust drying apparatus of the present invention has a ceiling made of double-layered transparent film on an agricultural greenhouse frame, and another film with a carbon fiber sheet overlaid on the south side. A combination of a large drying chamber with a semi-permeable greenhouse structure for solar radiation, solar thermal drying by solar radiation incident on the drying chamber, and hot air drying for blowing air heated by solar heat onto the floor of the drying chamber. Insulation cylinders on the north side, which dry wood materials, such as timber, and suck and exhaust the generated humid air with a strong draft force, and wood biomass, such as firewood, when the sun is not lit, such as on cloudy days or at night It is composed of a hot water floor heating panel that performs spray drying that complements solar heat by floor heating using combustion heat as fuel.
In addition, four cloth belt conveyors run around the drying chamber, and the wood pellet raw material from the sawdust supply hopper is supplied to the belt conveyor in a thin layer as appropriate. It is made to circulate around the drying chamber, is dried in the same manner as wood, and is collected by dry sawdust.
The solar-heat-utilized wood and sawdust drying apparatus of the present invention is dried at a low temperature (50 to 60 ° C.) at a low temperature using solar heat for 7 to 10 days, thereby improving the material of the desiccant.
The solar heat utilization wood and sawdust drying apparatus of the present invention can be applied to drying agricultural products, for example, in addition to wood.
The solar-heat-utilized wood and sawdust drying apparatus of the present invention will be described below with reference to the drawings.
FIG. 1 shows a schematic side view of a solar wood and sawdust drying device completed by installing a belt conveyor device in a drying chamber of a greenhouse structure, and FIG. 2 shows a plan view thereof.
The solar heat utilization wood and sawdust drying apparatus of the present invention is a solar heat passive utilization drying apparatus which is performed in a large drying chamber with an improved agricultural greenhouse.
As shown in FIG. 1, a large drying chamber 1 with an improved agricultural greenhouse frame has a roof structure that is gently inclined to the south side with the north side at the top, except for the north side wall, and the east side wall and the west side of the three side walls. The wall and the south side wall are covered with a double transparent vinyl film 2.
The north side wall is covered with a heat insulating opaque sheet 3.
The soil space 4 and the protective wall 5 of the drying chamber 1 are made of concrete and have an outer heat insulating structure.
The roof and the south side wall are covered with another transparent film 6 with a predetermined space inside the double transparent vinyl film 2, and a carbon fiber sheet 8 (CF sheet) is placed on the transparent film 6. It is made permeable.
That is, the roof and the south side wall are made of double transparent vinyl film 2 to form a thin air layer to provide heat insulation, and further, a predetermined space is provided under the double transparent vinyl film 2 and a transparent film 6 is stretched to be triple. The air passage 7 for the air blown by the blower 9 is formed.
A carbon fiber sheet 8 (CF sheet) is inserted into the air passage 7 on the transparent film 6 side that is triple, and the carbon fiber sheet 8 (CF sheet) is semi-permeable to solar radiation, and the carbon fiber sheet 8 (CF sheet) is The triple transparent film 6 made into a sandwich is translucent to incident light and opaque to infrared radiation from the room, and the room is kept warm.
The ridges on both sides of the roof are provided with a blower 9 communicating with a large number of parallel air passages 7 so as to supply outside air evenly to the large number of parallel air passages 7 on the roof. An air outlet 10 is provided at the skirt of the south side wall so that warm air is discharged into the drying chamber 1.
The carbon fiber sheet 8 (CF sheet) absorbs sunlight rays by itself and warms and collects air passing through the air passage 7 and is used for air drying of the wood stacked in the center of the drying chamber 1.
The carbon fiber sheet 8 (CF sheet) transmits 30% of sunlight, and the transmitted light is directly irradiated into the room and used for spray drying of wood.
As a result, 90% of the received solar radiation is taken into the room as transmitted light and warm air, and is effectively used as a drying heat source.
It is supplemented by the heat of combustion of wood fuel (sawdust, wood pellets, bark, thinned wood, etc.) during the sun and at night.
Using hot water (60 to 70 ° C.) obtained by burning wood fuel with a hot water boiler as a heat source, a fancon vector 11 is arranged at the air outlet 10, and hot air drying and hot water floor heating by the coil and fan of the fancon vector 11. The panel 12 is arranged to perform spray drying by floor heating.
As shown in FIG. 2, the five heat insulating cylinders 13 installed on the north side wall side have outlets 14 at three places, upper, middle, and lower, as shown in FIG. 1, and are dried by a powerful draft of the heat insulating cylinder 13. The humid air in the chamber 1 is sucked, and the humid air in the drying chamber 1 is passively exhausted from the heat insulating cylinder 13 to the outside of the chamber.
As shown in FIG. 3, four cloth belt conveyors 15 are run around the inside of the drying chamber 1, and wood pellets raw sawdust is supplied from the sawdust supply hopper 16 to the belt conveyor 15 in a thin layer as appropriate. The four belt conveyors 15 are advanced at a super slow speed to circulate around the inside of the drying chamber 1, and are dried in the same manner as wood.
When loading and unloading dry materials such as loading and unloading of wood, loading and recovery of sawdust, the shutter door 18 on the east side wall is opened and closed as shown in FIG. To move.
Next, the operation of the solar heat utilization wood and sawdust drying apparatus of the present invention will be described below based on the drawings.
The solar-heated wood and sawdust drying apparatus of the present invention has a transparent film 6 in which a transparent vinyl film 2 is stretched on an agricultural greenhouse frame and a carbon fiber sheet 8 is overlaid on the south side. A large-sized drying chamber 1 with a semi-transparent greenhouse for solar radiation, a solar radiation drying by solar radiation incident on the drying chamber 1, and a temperature at which air heated by solar heat is blown onto the floor of the drying chamber. Combined with wind drying, wooden materials such as stacked timber are dried, the heat insulation cylinder 13 on the north side that sucks and exhausts the generated humid air with a strong draft force, and the sun such as cloudy days and night At the time of non-lighting, it is comprised from the hot water floor heating panel 12 which performs the spray drying which complements solar heat by floor heating using the combustion heat which uses woody biomass, such as firewood.
Solar radiation falling on large drying chamber 1 with an improved agricultural vinyl house in 140Mcal / m 2 months at the time of summer sunny (163Wh / m 2 months), 45% of which is transmitted to the chamber, the radiation drying by solar Provided.
The remaining 45% is sent to the air passage 7 into which the carbon fiber sheet 8 (CF sheet) is inserted by the outside air sent by the two blowers 9 (400 W × 2) provided in the ridges on both sides of the roof.
The outside air absorbs solar heat collected by the carbon fiber sheet 8 (CF sheet) while passing through the air passage 7 of the roof to become warm air, and is blown into the drying chamber 1 from the air outlet 10 at the bottom of the south side wall. Then, the stacked wood in the drying chamber 1 and the sawdust on the belt conveyor 15 are dried.
At that time, five fan convectors 11 (fans with coil 200W × 5) are arranged at the air outlet 10 at the bottom of the south side wall to promote hot air drying.
The wet air after drying is sucked by the draft force of the five heat insulating cylinders 13 erected on the north side wall and exhausted to the outside.
In this way, the sucked outside air collects solar heat to become warm air, and after the wood material is dried, it is thrown into the atmosphere by the draft of the heat insulating cylinder 13 (air flow-through method).
For example, intake air (20 ° C.) sent from the blower 9 at a speed of 7 m / s becomes wet air (40 ° C.) and is exhausted from the heat insulating cylinder 13 at 3 m / s.
On the other hand, hot water of 60-70 ° C. is made with wood boilers using wood fuel, this hot water is supplied to the hot water floor heating panel 12 laid on the floor, and the timber and sawdust are dried by low-temperature radiant heating. .
The hot water floor heating panel 12 is divided into four systems (20 m 2 × 4) and used in a cascade manner.
The material to be dried is mainly larch, and the lumber is placed in the center of the room as two to three piles, and the solar radiation heat and carbon fiber sheet 8 (CF sheet) taken into the drying room 1 are installed. ) Is collected in about 10 days by low-temperature drying with air heat collected.
On the other hand, as shown in FIG. 3, while the sawdust is placed on the belt conveyor 15 provided around the drying chamber 1 and slowly moves, it is dried to about 30% to 10% and taken out as a beret raw material. .
In addition to wood (conifers; mainly larch lumber), sawdust (sawdust), which is a raw material for wood pellets, is dried in parallel, and this forms a cycle of wood material recycling.
It is a schematic side view of the solar heat utilization wood and sawdust drying apparatus of the present invention. It is a schematic plan view of the solar heat utilization wood and sawdust drying apparatus of this invention. It is (a) schematic side view of the belt conveyor of this invention, (b) schematic plan view. It is a schematic explanatory drawing of the conventional solar thermal wood drying apparatus.
Explanation of symbols
DESCRIPTION OF SYMBOLS 1 Drying room 2 Transparent vinyl film 3 Opaque film 4 Dust space 5 Protective wall 6 Transparent film 7 Air passage 8 Carbon fiber sheet 9 Blower 10 Air outlet 11 Fancon vector 12 Hot water floor heating panel 13 Thermal insulation cylinder 14 Outlet 15 Belt conveyor 16 Powder feed hopper 17 Dry saw powder holder 18 Shutter door

Claims (2)

  1.   A large drying room with a semi-permeable greenhouse structure with solar radiation, with a ceiling made of double layers of transparent film on an agricultural greenhouse frame and another film with a carbon fiber sheet on the south side. This is a combination of solar radiation drying by solar radiation incident on the drying chamber and warm air drying that blows air heated by solar heat onto the floor of the drying chamber. The north side heat-insulating cylinder that sucks and exhausts hot humid air with a strong draft force, and when the sun is not lit, such as on cloudy days or at night, supplements solar heat with floor heating using combustion heat fueled by woody biomass such as firewood A solar-heated wood and sawdust drying device comprising a warm water floor heating panel that performs spray drying.
  2. Run four cloth belt conveyors around the drying chamber, supply the wood pellet raw material from the sawdust supply hopper to the belt conveyor in a thin layer as appropriate, and run the four belt conveyors at super slow speed. The solar-heated wood and sawdust drying device according to claim 1, wherein the surroundings of the drying chamber are circulated, drying is performed in the same manner as wood, and the dry sawdust is collected by receiving the powder.


JP2005258204A 2005-09-06 2005-09-06 Solar-based wood and sawdust powder drying device Pending JP2007071440A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005258204A JP2007071440A (en) 2005-09-06 2005-09-06 Solar-based wood and sawdust powder drying device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005258204A JP2007071440A (en) 2005-09-06 2005-09-06 Solar-based wood and sawdust powder drying device

Publications (1)

Publication Number Publication Date
JP2007071440A true JP2007071440A (en) 2007-03-22

Family

ID=37933045

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005258204A Pending JP2007071440A (en) 2005-09-06 2005-09-06 Solar-based wood and sawdust powder drying device

Country Status (1)

Country Link
JP (1) JP2007071440A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013154502A (en) * 2012-01-27 2013-08-15 Sumitomo Osaka Cement Co Ltd Apparatus for adjusting water content of woody material
JP2013154501A (en) * 2012-01-27 2013-08-15 Sumitomo Osaka Cement Co Ltd Method for adjusting water content of woody material
CN103383177A (en) * 2012-05-02 2013-11-06 海南宏祺藤业科技股份有限公司 Solar power drying technology for vine materials of palm vines
CN103776245A (en) * 2014-01-27 2014-05-07 赤峰卉原建材有限公司 Multistage combustion wind separation dry kiln used for preparing expanded perlite board and method for drying expanded perlite board
CN104048498A (en) * 2013-03-15 2014-09-17 禄劝瑞恒光能科技有限公司 Solar drying system
CN104165502A (en) * 2014-08-22 2014-11-26 魏春旺 Efficient solar fruit and vegetable drying room
CN104976868A (en) * 2014-04-09 2015-10-14 赵力 Solar heating drying room
JP2016525201A (en) * 2013-06-21 2016-08-22 中盈▲長▼江国▲際▼新能源投▲資▼有限公司 Solar energy drying system with integrated heat recovery, storage and supply
CN106403515A (en) * 2016-03-16 2017-02-15 内蒙古博特科技有限责任公司 Internal energy storage box type solar dryer
CN108645143A (en) * 2018-05-19 2018-10-12 潘礼斌 A kind of herbage drying system based on solar-heating
CN109269234A (en) * 2018-07-09 2019-01-25 铜陵菻科工业石膏综合利用有限责任公司 Industry by-product gypsum thermal-arrest drying shed

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013154502A (en) * 2012-01-27 2013-08-15 Sumitomo Osaka Cement Co Ltd Apparatus for adjusting water content of woody material
JP2013154501A (en) * 2012-01-27 2013-08-15 Sumitomo Osaka Cement Co Ltd Method for adjusting water content of woody material
CN103383177A (en) * 2012-05-02 2013-11-06 海南宏祺藤业科技股份有限公司 Solar power drying technology for vine materials of palm vines
CN104048498A (en) * 2013-03-15 2014-09-17 禄劝瑞恒光能科技有限公司 Solar drying system
JP2016525201A (en) * 2013-06-21 2016-08-22 中盈▲長▼江国▲際▼新能源投▲資▼有限公司 Solar energy drying system with integrated heat recovery, storage and supply
CN103776245A (en) * 2014-01-27 2014-05-07 赤峰卉原建材有限公司 Multistage combustion wind separation dry kiln used for preparing expanded perlite board and method for drying expanded perlite board
CN103776245B (en) * 2014-01-27 2016-04-13 赤峰卉原建材有限公司 One prepares the multistage combustion of expanded pearlite rock beam, point wind dry kiln and method
CN104976868A (en) * 2014-04-09 2015-10-14 赵力 Solar heating drying room
CN104165502A (en) * 2014-08-22 2014-11-26 魏春旺 Efficient solar fruit and vegetable drying room
CN106403515A (en) * 2016-03-16 2017-02-15 内蒙古博特科技有限责任公司 Internal energy storage box type solar dryer
CN108645143A (en) * 2018-05-19 2018-10-12 潘礼斌 A kind of herbage drying system based on solar-heating
CN109269234A (en) * 2018-07-09 2019-01-25 铜陵菻科工业石膏综合利用有限责任公司 Industry by-product gypsum thermal-arrest drying shed

Similar Documents

Publication Publication Date Title
CN103575077B (en) A kind of Multi-layer belt type drying system
EP3012564B1 (en) Integrated solar energy drying system collecting, storing and supplying heat
CN102393136B (en) Method for drying materials by using greenhouse-type double-heat-collecting double-heat-preserving solar-energy heat-pump drying device
CN102645095B (en) Intelligent electric heating drier
US6922908B1 (en) Vegetable product drying
CN201488480U (en) Drying device combined solar and air source heat pump
CN102954678B (en) Utilize method and the device thereof of biomass boiler flue gas drying biomass material
CN201964722U (en) Solar energy and air stove combined drying equipment
CN101801174A (en) wood-drying solar greenhouse
CN201429307Y (en) Energy-saving dryer
CN104567330B (en) A kind of Intelligent internet of things drying unit
AU2015353312B2 (en) Biomass fuel drying method and device thereof using mobile vehicle platform
CN202675834U (en) Intelligent electric heating drier
CN202232938U (en) Energy-saving unit tobacco flue-curing room being capable of recycling wicked moisture and waste heat
CN202281480U (en) Greenhouse type double-heat-collection double-heat-insulation solar heat pump drying device
KR100966350B1 (en) The manufacturing device of drying, carbonization using superheated steam
CN202485379U (en) High-temperature heat pump drying system
CN104719461B (en) Small-size dryer for grains
CN102767937B (en) Greenhouse-type solar heat pump combination drying device and method thereof
CN101907383B (en) Belt-conveying drying system and method for realizing dehydration and upgrading of lignite by using solar energy
CN205048926U (en) Belt infrared drying system
CN105135851B (en) A kind of belt infrared radiation drying system and its installation and drying means
CN204830800U (en) Heat transfer medium's drying -machine is regarded as with nitrogen gas
CN207945916U (en) A kind of craftwork wood dryer
CN205279634U (en) Board -like timber drying apparatus of hot -blast two -way flow