CN201293521Y - Down and reversing flow grain drier for reuse of heat energy - Google Patents
Down and reversing flow grain drier for reuse of heat energy Download PDFInfo
- Publication number
- CN201293521Y CN201293521Y CNU2008200727266U CN200820072726U CN201293521Y CN 201293521 Y CN201293521 Y CN 201293521Y CN U2008200727266 U CNU2008200727266 U CN U2008200727266U CN 200820072726 U CN200820072726 U CN 200820072726U CN 201293521 Y CN201293521 Y CN 201293521Y
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- air
- grain drier
- heat energy
- hot
- grain
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Abstract
The utility model discloses a forward and backward flow grain drier capable of reuse of heat energy which is improved based on a forward and backward flow grain drier. The grain drier is provided with a warm air recovery device at the air outlet of the cooling section of the drying tower, and the warm air recovery device is connected to air suction pipeline of at least one warm-blast apparatus by recovery pipeline and control valve on the recovery pipeline, or connected to a hot blast chamber though the recovery pipeline. The grain drier can circulatedly use the heat energy discharged in the atmospheric, thereby diminishing the supply of high-temperature hot air, avoiding energy sources waste, effectively saving energy and reducing the discharging and largely reducing the cost of the food drying. Simultaneously the grain drier has advantages of simple structure, economy, practicality, stabilized performance, better application and the like.
Description
Technical field:
The utility model relates to a kind of improvement technology to the concurrent-countercurrent foodstuff drying device.
Background technology:
At present, the concurrent-countercurrent foodstuff drying device is the most advanced grain drying equipment of China, and it mainly is made up of drying tower, bucket elevator, hot-blast stove, hot blast chamber, air-heater, air-cooler and pipeline.General air-heater is provided with 2 or 3, every air-heater is toward the interior hot blast temperature difference of carrying of drying tower, being respectively 160-180 ℃, 140-160 ℃, 120-140 ℃ does not wait, and three air-heaters are the hot-airs from the indoor suction uniform temp of same hot blast, the temperature approach that guarantees three air-heater institute hot wind supplies just must make especially back two air-heaters of air-heater suck a certain amount of cold air, and every cover dryer also is furnished with an air-cooler that dried hot grain is cooled off.This air-cooler is pressed into the dryer cooling section with outdoor cold air, and Cryogenic air is passed hot grain layer in cooling section, carries out thermal energy exchange between grain grain and the air molecule the cooling of grain grain, and the cold air that enters is converted into warm air, and enters atmosphere through the horn shape box.Enter in this part gas of atmosphere and contain appreciable heat energy, but wasted.
Summary of the invention:
The purpose of this utility model provides a kind of concurrent-countercurrent foodstuff drying device that heat energy can be utilized again, mainly is to pass hot grain layer and convert warm air to and enter atmosphere in order to solve in drying machine drying tower cooler section Cryogenic air, causes the problem of energy waste.
Scheme of the present utility model is as described below: this utility model comprises drying tower, bucket elevator, hot-blast stove, heat exchanger, hot blast chamber, air-heater, air-cooler and pipeline composition concurrent-countercurrent foodstuff drying device, it is at drying tower cooling section exhaust outlet place the warm air retracting device to be set, and the by-pass valve control on reclaim line and reclaim line is connected with at least one air-heater suction line, or is connected with the hot blast chamber through reclaim line.
The beneficial effects of the utility model: this utility model can will enter the heat energy recycling of atmosphere owing to taked said structure, thereby reduces the supply of high-temperature hot-air, avoids energy waste, and effectively energy-saving and emission-reduction obviously reduce the grain heat-drying cost.Have simple in structure, economical and practical, stable performance simultaneously, be fit to advantage such as popularization.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is another structural representation of the present utility model;
Fig. 4 is the A-A cutaway view of Fig. 3.
The specific embodiment:
By Fig. 1-concurrent-countercurrent foodstuff drying device that heat energy can be utilized again shown in Figure 4 is improved a kind of novel foodstuff dryer on the prior art basis.It is at drying tower 1 cooling section exhaust outlet place warm air retracting device 2 to be set, and retracting device 2 is connected with hot blast chamber 8 through reclaim line 3 among Fig. 1, Fig. 2.And the by-pass valve control 11 that retracting device 2 is installed on reclaim line 3 and reclaim line 3 among Fig. 3, Fig. 4 is connected with air- heater 4,5,6 suction line respectively.
During the oven dry operation, bucket elevator is sent into grain to be dried in the drying tower 1 from the top, hot blast is by hot-blast stove 9, heat exchanger 10, air-heater 4 is sent in hot blast chamber 8,5,6, and in the hot-blast pipe line segmentation enters drying tower 1, grain is dried, hot grain after the oven dry enters cooling section, cooling section provides cold wind by air-cooler 7, cold wind passes hot grain layer, carrying out thermal energy exchange between grain grain and air molecule cools off the grain grain, cold air then is converted into warm air by retracting device 2 recovery in this process, because the gas in the retracting device 2 is malleation, reach air-heater 4 in the hot blast chamber 8,5, be negative pressure in 6 suction line, rely on this positive and negative pressure to force warm air to enter hot blast chamber 8 or air-heater 4 through reclaim line 3 automatically, 5,6 suction line are utilized again.Valve 11 purposes that are provided with respectively on retracting device 2 and air- heater 4,5,6 suction line are to regulate the warm air amount that control sucks, and this valve 11 can be taked manually or the automatic control mode adjusting.
Claims (1)
1, a kind of concurrent-countercurrent foodstuff drying device that heat energy can be utilized again, comprise drying tower (1), bucket elevator, hot-blast stove (9), heat exchanger (10), hot blast chamber (8), air-heater (4,5,6), air-cooler (7) and pipeline are formed the concurrent-countercurrent foodstuff drying device, it is characterized in that: this machine is provided with warm air retracting device (2) at drying tower (1) cooling section exhaust outlet place, and the by-pass valve control (11) on reclaim line (3) and reclaim line (3) and at least one air-heater (4,5,6) suction line is connected, or is connected with hot blast chamber (8) through reclaim line (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200727266U CN201293521Y (en) | 2008-11-06 | 2008-11-06 | Down and reversing flow grain drier for reuse of heat energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200727266U CN201293521Y (en) | 2008-11-06 | 2008-11-06 | Down and reversing flow grain drier for reuse of heat energy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201293521Y true CN201293521Y (en) | 2009-08-19 |
Family
ID=41007001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200727266U Expired - Fee Related CN201293521Y (en) | 2008-11-06 | 2008-11-06 | Down and reversing flow grain drier for reuse of heat energy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201293521Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104101200A (en) * | 2014-07-23 | 2014-10-15 | 北京科技大学 | Deep-bed grain drying system and method employing coupling of variable-temperature alternating airflow and vibration |
| CN104322665A (en) * | 2014-10-30 | 2015-02-04 | 邯郸市邯丰机械制造集团有限公司 | Grain dryer |
| CN104833193A (en) * | 2015-04-30 | 2015-08-12 | 苏州科谷米业有限公司 | Grain drying machine with synchronous dust-removing function |
| CN105222560A (en) * | 2015-08-26 | 2016-01-06 | 酒泉奥凯种子机械股份有限公司 | For air channel and the control method of alternating temperature drying machine |
| CN105546966A (en) * | 2015-12-31 | 2016-05-04 | 中国科学院理化技术研究所 | Continuous heat pump drying system for dry fruits |
-
2008
- 2008-11-06 CN CNU2008200727266U patent/CN201293521Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104101200A (en) * | 2014-07-23 | 2014-10-15 | 北京科技大学 | Deep-bed grain drying system and method employing coupling of variable-temperature alternating airflow and vibration |
| CN104101200B (en) * | 2014-07-23 | 2016-01-20 | 北京科技大学 | A kind of thick-layer grain drying system of be coupled alternating temperature alternation air-flow and vibration and method |
| CN104322665A (en) * | 2014-10-30 | 2015-02-04 | 邯郸市邯丰机械制造集团有限公司 | Grain dryer |
| CN104833193A (en) * | 2015-04-30 | 2015-08-12 | 苏州科谷米业有限公司 | Grain drying machine with synchronous dust-removing function |
| CN105222560A (en) * | 2015-08-26 | 2016-01-06 | 酒泉奥凯种子机械股份有限公司 | For air channel and the control method of alternating temperature drying machine |
| CN105546966A (en) * | 2015-12-31 | 2016-05-04 | 中国科学院理化技术研究所 | Continuous heat pump drying system for dry fruits |
| CN105546966B (en) * | 2015-12-31 | 2018-03-23 | 中国科学院理化技术研究所 | A kind of dry fruit continous way heat pump drying system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090819 Termination date: 20111106 |