CN104848677A - Single-fan cyclic waste heat recovery device applicable to small grain dryer - Google Patents
Single-fan cyclic waste heat recovery device applicable to small grain dryer Download PDFInfo
- Publication number
- CN104848677A CN104848677A CN201510301933.9A CN201510301933A CN104848677A CN 104848677 A CN104848677 A CN 104848677A CN 201510301933 A CN201510301933 A CN 201510301933A CN 104848677 A CN104848677 A CN 104848677A
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- cooling
- hot air
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- dryer
- drying
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/85—Food storage or conservation, e.g. cooling or drying
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse 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
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Abstract
A single-fan cyclic waste heat recovery device applicable to a small grain dryer comprises a dryer mainframe, a drying section waste gas outlet, a drying section hot air chamber, a cooling section cold air inlet and a cooling waste gas chamber. The upper portion of the dryer mainframe is provided with a drying section, the lower portion of the dryer mainframe is provided with a cooling section, the drying section is provided with the drying section waste gas outlet and the drying section hot air chamber, and the cooling section is provided with the cooling section cold air inlet and the cooling waste gas chamber. The single-fan cyclic waste heat recovery device is characterized in that an air outlet of the cooling waste gas chamber is connected with a heat source hot air chamber through a cooling waste gas pipeline, and an air outlet of the heat source hot air chamber is communicated with an air inlet of the drying section hot air chamber through a hot air pipeline and a fan arranged in the pipeline. By the aid of one fan, recycling of waste heat at the cooling section of the grain dryer can be realized while normality in hot air supply is guaranteed for the dryer, and accordingly drying energy consumption in operation of the small grain dryer can be reduced.
Description
Technical field
The present invention relates to a kind of heat recovery technology be applied in grain drying device, is a kind of single blower fan circulatory afterheat recycling device being applicable to small-size grain drying machinery specifically.
Background technology
The now widely used foodstuff drying device of China all adopts convection current heating power drying mode, and namely utilize hot-air directly to contact with grain, heat passes to grain in the mode of convection current, and the temperature of grain is raised, and inner moisture vaporization, reaches dry object.Hot blast temperature after heat release declines, and carries the moisture of vaporizing out in grain and discharge outside dryer as oven dry waste gas.Grain after oven dry is higher due to grain temperature, cannot safe storage, must lead to overcooled mode and the temperature of grain is down to safe storage temperature then goes out machine.The cooling of grain all uses the mode of cross-ventilation cooling at present, and namely contacted with grain by cold air, the heat in hot grain passes to cold air by the mode of convection current, the temperature of grain is declined, reaches the object of cooling.After cold air absorbs the heat in grain, temperature raises, and becomes cooling exhaust and discharges outside dryer.
Dryer discharge oven dry waste gas and cooling exhaust in, cooling exhaust is owing to having certain temperature, and humidity is lower, so can recycle heat contained in cooling exhaust, effectively to reduce the heat exhaustion of dryer, reduce drying machine drying cost.
Summary of the invention
One single blower fan circulatory afterheat recycling device simply and easily that object of the present invention provides for the waste heat recovery in the cooling exhaust of small-size grain drying machinery just.
The main design thought of waste-heat recovery device of the present invention is only to use a Fans can while normally sending hot blast to dryer, the cooling exhaust raised through temperature after dryer cooling section is sucked thermal source hot air chamber by cooling exhaust air compartment, cooling exhaust pipeline, as the air distribution of thermal source, mix with the hot blast carrying out self-heat power after after the hot blast temperature reaching suitable, enter drying machine drying section, heating, drying is carried out to the grain in dryer.Because the temperature of cooling exhaust is higher than environment temperature, waste heat contained in the heat that its temperature gap is formed i.e. cooling exhaust is just recycled.
Concrete technology of the present invention is arranged as follows:
The single blower fan circulatory afterheat recycling device being applicable to small-size grain drying machinery of the present invention, described device comprises the dryer main frame that top is drying section, bottom is cooling section, and the drying section waste gas outlet be arranged in drying section and drying section hot air chamber, the upper cooling section cold wind import being arranged on cooling section and cooling exhaust air compartment; The air outlet of described cooling exhaust air compartment is connected with thermal source hot air chamber by cooling exhaust pipeline, and the air outlet of described thermal source hot air chamber is communicated with the air inlet of drying section hot air chamber with the Fans be arranged between pipeline by hot air duct.
beneficial effect of the present invention is as follows:
Because single blower fan of the present invention circulating waste heat reclaiming process route is simple, only need from setting up a cooling exhaust air compartment and a cooling exhaust pipeline on normal dryer process route, can utilize to the air-heater of dryer hot wind supply while normally sending hot blast to dryer, the cooling exhaust raised through temperature after dryer cooling section is passed through cooling exhaust air compartment, cooling exhaust pipeline sucks thermal source hot air chamber, as the air distribution of thermal source, mix with the hot blast carrying out self-heat power after after the hot blast temperature reaching suitable, enter drying machine drying section, heating, drying is carried out to the grain in dryer, process route is simple, practical manufacture and operating cost low, be specially adapted to the small-size grain drying machinery application using separate unit air-heater.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Sequence number in figure: 1, drying section, 2, drying section waste gas outlet, 3, cooling section, 4, the import of cooling section cold wind, 5, drying section hot air chamber, 6, cooling exhaust air compartment, 7, blower fan, 8, hot air duct, 9, cooling exhaust pipeline, 10, thermal source hot air chamber.
Detailed description of the invention
The present invention is further described below with reference to embodiment (accompanying drawing):
As shown in Figure 1, the single blower fan circulatory afterheat recycling device being applicable to small-size grain drying machinery of the present invention, described device comprises the dryer main frame that top is drying section 1, bottom is cooling section 3, and the drying section waste gas outlet 2 be arranged in drying section 1 and drying section hot air chamber 5, is arranged on cooling section cold wind import 4 on cooling section 3 and cooling exhaust air compartment 6; The air outlet of described cooling exhaust air compartment 6 is connected with thermal source hot air chamber 10 by cooling exhaust pipeline 9, and the air outlet of described thermal source hot air chamber 10 is communicated with the air inlet of drying section hot air chamber 5 with the Fans 7 be arranged between pipeline by hot air duct 8.
It is as follows that the present invention sketches operation principle of the present invention below in conjunction with Fig. 1:
During dryer work, the grain in dryer moves under gravity from the top down, and air-heater operates, and extracts the hot-air in thermal source hot air chamber and is sent in dryer by hot air duct and dryer hot-flow flue, drying the grain in dryer.Simultaneously, due to the work of air-heater, be negative pressure state in thermal source hot air chamber, under the effect of thermal source hot air chamber negative pressure, cold wind enters dryer by cold air inlet, cools to the hot grain of dryer cooling section, and after cold wind absorbs the heat of hot grain, temperature raises, enter thermal source hot air chamber by cooling exhaust pipeline, thus play the object to heat recovery in cooling exhaust.Whole oven dry and waste heat recovery only use an air-heater, and the cold wind of the hot blast of drying and cooling is circulated by air-heater, and total is simple and practical.
Claims (1)
1. one kind is applicable to single blower fan circulatory afterheat recycling device of small-size grain drying machinery, it is drying section that described device comprises top, bottom is the dryer main frame of cooling section, and the drying section waste gas outlet be arranged in drying section and drying section hot air chamber, be arranged on upper cooling section cold wind import and the cooling exhaust air compartment of cooling section, it is characterized in that: the air outlet of described cooling exhaust air compartment is connected with thermal source hot air chamber by cooling exhaust pipeline, the air outlet of described thermal source hot air chamber is communicated with the air inlet of drying section hot air chamber with the Fans be arranged between pipeline by hot air duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510301933.9A CN104848677A (en) | 2015-06-05 | 2015-06-05 | Single-fan cyclic waste heat recovery device applicable to small grain dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510301933.9A CN104848677A (en) | 2015-06-05 | 2015-06-05 | Single-fan cyclic waste heat recovery device applicable to small grain dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104848677A true CN104848677A (en) | 2015-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510301933.9A Pending CN104848677A (en) | 2015-06-05 | 2015-06-05 | Single-fan cyclic waste heat recovery device applicable to small grain dryer |
Country Status (1)
| Country | Link |
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| CN (1) | CN104848677A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106052359A (en) * | 2016-08-06 | 2016-10-26 | 叶群 | Powdery substance drying machine |
| CN106958994A (en) * | 2017-04-14 | 2017-07-18 | 汉广天工机械设备（北京）有限公司 | A kind of blinds coral tower three-stage drying plant and furnace drying method |
| CN113494774A (en) * | 2020-03-19 | 2021-10-12 | 郑州万谷机械股份有限公司 | Waste gas waste heat recovery gas energy-saving hot blast stove |
-
2015
- 2015-06-05 CN CN201510301933.9A patent/CN104848677A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106052359A (en) * | 2016-08-06 | 2016-10-26 | 叶群 | Powdery substance drying machine |
| CN106958994A (en) * | 2017-04-14 | 2017-07-18 | 汉广天工机械设备（北京）有限公司 | A kind of blinds coral tower three-stage drying plant and furnace drying method |
| CN113494774A (en) * | 2020-03-19 | 2021-10-12 | 郑州万谷机械股份有限公司 | Waste gas waste heat recovery gas energy-saving hot blast stove |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150819 |