CN104273217A - Series heating type counter flow grain dryer - Google Patents
Series heating type counter flow grain dryer Download PDFInfo
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- CN104273217A CN104273217A CN201410578834.0A CN201410578834A CN104273217A CN 104273217 A CN104273217 A CN 104273217A CN 201410578834 A CN201410578834 A CN 201410578834A CN 104273217 A CN104273217 A CN 104273217A
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Abstract
The invention discloses a series heating type counter flow grain dryer which comprises a drying tower, a bucket elevator, a belt conveyor and a feeding bin, wherein the belt conveyor is arranged at the bottom of the drying tower; the feeding bin is arranged on the top of the drying tower; the bucket elevator is arranged on one side of the drying tower; the bottom of the bucket elevator corresponds to the output end of the belt conveyor; the top of the bucket elevator is connected with the feeding bin; a feeder is arranged below the feeding bin; a distributor is arranged below the feeder and is positioned on the top end inside the drying tower; the drying tower is connected with an induced draft fan; multiple layers of grain discharging mechanisms and multiple heating devices are arranged in the feeding bin; and a discharging mechanism is arranged at the bottom of the drying tower. According to the series heating type counter flow grain dryer disclosed by the invention, the defects that the temperature of hot air is low when the traditional counter flow grain dryer is upward, the drying effect of low-temperature humid grains is poor and the production efficiency is low are overcome. The thermal efficiency is high, and the moisture and temperature of grains are uniform; and moreover, the dried grains are high in quality and low in fissure ratio, and the yield of dried grains is increased.
Description
Technical field
The present invention relates to a kind of foodstuff drying device, particularly the reverse-flow foodstuff drying device of a kind of series connection hot type.
Background technology
In existing Counter-flow Grain Dryer, the flow direction of hot blast and cereal is contrary, and first the hottest air contacts with the most dry grain, the temperature of grain is close to hot blast temperature, more upwards hot blast temperature is lower, and poorer to the drying effect of the cereal of low temperature and moisture, production efficiency is lower.
Summary of the invention
For solving the problems of the technologies described above, the invention provides the reverse-flow foodstuff drying device of a kind of series connection hot type, more upwards hot blast temperature is lower to overcome conventional counter-current foodstuff drying device, the shortcoming poorer to the drying effect of the cereal of low temperature and moisture, production efficiency is lower.The thermal efficiency is higher, each temperature of grain moisture content is more even; The output that the quality better of grain after drying, percent cracked rice be low, improve drying grain.
The technical scheme that the present invention takes is:
The reverse-flow foodstuff drying device of series connection hot type, comprises drying tower, bucket elevator, belt conveyor, feeding warehouse; Be provided with belt conveyor bottom drying tower, drying tower top is provided with feeding warehouse, and drying tower side is provided with bucket elevator, and the output of the corresponding belt conveyor of bucket lifting motor spindle, bucket elevator top connects feeding warehouse.Be provided with batcher below feeding warehouse, be provided with distributing device below batcher, distributing device is positioned at drying tower top, and drying tower connects air-introduced machine.Be provided with the heater of multilayer fabric in described drying tower, the bottom of drying tower is provided with draining crop mechanism.
Described feeding warehouse is provided with the first material-level detecting device; Described drying tower is provided with the second material-level detecting device.
Described heater is heat exchanger, and heat exchanger connects boiler.
Described heater is provided with the first temperature-detecting device.
Described draining crop mechanism is provided with the second temperature-detecting device, humidity detector.
A kind of reverse-flow grain heat-drying method, comprises the following steps:
Step 1: grain to be dried is delivered to feeding warehouse by bucket elevator, programme-control batcher runs, to keep setting material level.
Step 2: grain is dispersed in drying tower uniformly by distributing device, air-introduced machine runs by the low air quantity of feeding schedule and carries out removal of impurities to grain simultaneously, when drying tower first material-level detecting device detects signal: after cereal is added to and buys securities with all one's capital, stop charging, air-introduced machine changes into and running by drying procedure Wind Volume simultaneously.
Step 3: dry gas is entered by the porous draining crop mechanism being covered with grain, after heater, become thermal medium simultaneously to grain heating, heater controls to the setting first stage automatically except wet temp.
Step 4: hot blast by the bottom of drying tower, is carried out evaporator strip to cereal and walks moisture, along with the rising of hot-air, finally extracted out above grain layer by air-introduced machine after heating for multiple times.
Step 5: when the humidity detector priority be covered with on the porous draining crop mechanism of grain all reaches circulation humidity value, discharge mechanism is opened.
Step 6: grain returns bucket elevator from belt conveyor, then to feeding warehouse, be then dispersed in drying tower uniformly by distributing device and circulate, carry out cereal simultaneously and releive.
Step 7: after circulation terminates, removes wet temp by procedure auto-control to setting second stage by heater heat supply, carries out evaporation drying to cereal.
A kind of reverse-flow grain heat-drying method, repeatedly carry out step 1 ~ 7, until humidity detector priority all reaches setting value, show that grain moisture content moisture content reaches dry requirement, then then heater temperature automatically adjusted, open air-introduced machine, the grain after qualified to drying is lowered the temperature in advance.
The reverse-flow foodstuff drying device of the present invention's one series connection hot type, technique effect is as follows:
1) high low shortcoming under, improving original conventional counter-current formula grain drier temperature, make heating-up temperature in volume consistent from top to bottom, due to every layer of dry heat unit temp adjustable of this drying machine, so drying medium temperature can be adjusted control the temperature of grain self lower than 43 DEG C when actual drying, avoid grain because the phenomenon of overheated and quick-fried waist.
2) adopt Wind Volume air-introduced machine to take waste gas away, dried cereal moisture percentage is more even, simultaneously.More upwards hot blast temperature is lower to overcome conventional counter-current foodstuff drying device, poorer to the drying effect of the grain of low temperature and moisture, and the shortcoming that production efficiency is lower improves the output of drying grain.
3), the thermal efficiency is higher: because the waste gas of counter-current drier discharge is always close to saturated, namely take full advantage of latent heat and the drying capacity of hot blast.
4), less demanding to the percentage of impurity of grain, distributing device has removal of impurities effect; Impurity enters collector through distributing device and discharges.
5), equipment is less than the volume of same output one times, and related investment is few, is both applicable to the small production scales of rural area, peasant household, can meet again the needs of processing rich and influential family,
6), level bed upper valley layer thickness is unrestricted, both can continuous drying, also can batch process.
Accompanying drawing explanation
Fig. 1 is invention foodstuff drying device structural representation.
Detailed description of the invention
As shown in Figure 1, the reverse-flow foodstuff drying device of series connection hot type, comprises drying tower 1, bucket elevator 2, belt conveyor 3, feeding warehouse 4.Be provided with belt conveyor 3 bottom drying tower 1, drying tower 1 top is provided with feeding warehouse 4, and drying tower 1 side is provided with bucket elevator 2, the output of corresponding belt conveyor 3 bottom bucket elevator 2, and bucket elevator 2 top connects feeding warehouse 4.Be provided with batcher 5 below feeding warehouse 4, be provided with distributing device 6 below batcher 5, distributing device 6 is positioned at drying tower 1 top, and drying tower 1 connects air-introduced machine 7, and air-introduced machine 7 connects collector 17, and collector 17 connects cleaning shaft.
Be provided with the heater 9 of multilayer fabric in described drying tower 1, the bottom of drying tower 1 is provided with draining crop mechanism 8.Draining crop mechanism comprises blowing orifice plate, drive motors and proximity switch.
Described feeding warehouse 4 is provided with the first material-level detecting device 11; Described drying tower 1 is provided with the upper material-level measure of the second material-level detecting device 12, second material-level detecting device 12 for drying tower 1.First material-level detecting device 11, second material-level detecting device 12 adopts optoelectronic switch.
Described heater 9 is heat exchanger, and heat exchanger is bent into sandwich construction, forms tandem type.Heat exchanger connects boiler 13.Described heater 9 is provided with the first temperature-detecting device 14.Described draining crop mechanism 8 is provided with the second temperature-detecting device 15, humidity detector 16.Second temperature-detecting device 15 adopts temperature sensor, and humidity detector 16 adopts humidity sensor.
First material-level detecting device 11, second material-level detecting device 12, first temperature-detecting device 14, second temperature-detecting device 15, humidity detector 16 are all connected to master control cabinet.Master control cabinet connects bucket elevator 2, belt conveyor 3, batcher 5, discharge mechanism 10, heater 9.
Implementation step:
The grain of drying is for cereal, and cereal to be dried is delivered to feeding warehouse 4 by bucket elevator 2, and programme-control batcher 5 runs, and the first material-level detecting device 11 monitors paddy material thickness, to keep setting material level.Then be dispersed in drying tower 1 uniformly by distributing device 6, air-introduced machine 7 runs by the low air quantity of feeding schedule and carries out removal of impurities to cereal simultaneously, when the upper material level of drying tower 1 detect signal and cereal be added to buy securities with all one's capital after stop charging, air-introduced machine 7 changes into and running by drying procedure Wind Volume simultaneously, dry gas is entered by the porous draining crop mechanism 8 being covered with grain, and draining crop mechanism 8 is welded into lattice-shaped by many band irons.
Thermal medium is become simultaneously to heat grain after heater 9, heater 9 is by water heater heat supply, by procedure auto-control to the setting first stage except wet temp: 55 DEG C, hot blast by the bottom of drying tower 1, is carried out evaporator strip to cereal and walks moisture after heating for multiple times.Along with the rising of hot-air, finally extracted out above grain layer by air-introduced machine 7.
When humidity detector 16 priority be covered with on the porous draining crop mechanism 8 of cereal all reaches circulation humidity value, (humidity: 16 ~ 18%) discharge mechanism 10 is opened, cereal returns bucket elevator 2 again to feeding warehouse 4 from belt conveyor 3, then be dispersed in uniformly in drying tower 1 by distributing device 6 and circulate, carry out cereal simultaneously and releive.
After circulation terminates, by heater 9 by water heater heat supply, remove wet temp by procedure auto-control to setting second stage: 43 DEG C, evaporation drying is carried out to cereal.Above-mentioned steps so repeatedly, until humidity detector 16 priority all reaches setting value: humidity: about 12%.Show that grain moisture moisture content reaches dry requirement, then then the temperature of heater 9 is adjusted to 25 DEG C automatically, take out 10 minutes with Wind Volume air-introduced machine, the grain after qualified to drying is lowered the temperature in advance.When preventing room temperature too low, the grain cooling after making drying qualified is too fast and cause thus the phenomenon of quick-fried waist, (particularly the Northeast), reaches the effect of releiving in the process of discharging simultaneously.
Claims (5)
1. the reverse-flow foodstuff drying device of series connection hot type, comprises drying tower (1), bucket elevator (2), belt conveyor (3), feeding warehouse (4); Drying tower (1) bottom is provided with belt conveyor (3), drying tower (1) top is provided with feeding warehouse (4), drying tower (1) side is provided with bucket elevator (2), the output of bucket elevator (2) the corresponding belt conveyor in bottom (3), bucket elevator (2) top connects feeding warehouse (4); It is characterized in that,
Feeding warehouse (4) below is provided with batcher (5), and batcher (5) below is provided with distributing device (6), and distributing device (6) is positioned at drying tower (1) top, and drying tower (1) connects air-introduced machine (7);
Be provided with the heater (9) of multilayer fabric in described drying tower (1), the bottom of drying tower (1) is provided with draining crop mechanism (8).
2. connect according to claim 1 hot type reverse-flow foodstuff drying device, it is characterized in that, described feeding warehouse (4) is provided with the first material-level detecting device (11); Described drying tower (1) is provided with the second material-level detecting device (12).
3. connect according to claim 1 hot type reverse-flow foodstuff drying device, it is characterized in that, described heater (9) is heat exchanger, and heat exchanger connects boiler (13).
4. connect according to claim 1 or 3 the reverse-flow foodstuff drying device of hot type, it is characterized in that, described heater (9) is provided with the first temperature-detecting device (14).
5. connect according to claim 1 hot type reverse-flow foodstuff drying device, it is characterized in that, described drying tower (1) is provided with the second temperature-detecting device (15), humidity detector (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410578834.0A CN104273217A (en) | 2014-10-27 | 2014-10-27 | Series heating type counter flow grain dryer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410578834.0A CN104273217A (en) | 2014-10-27 | 2014-10-27 | Series heating type counter flow grain dryer |
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| CN104273217A true CN104273217A (en) | 2015-01-14 |
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| CN201410578834.0A Pending CN104273217A (en) | 2014-10-27 | 2014-10-27 | Series heating type counter flow grain dryer |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105053186A (en) * | 2015-08-21 | 2015-11-18 | 无锡市海昌机械设备有限公司 | Novel grain drying machine |
| CN105410172A (en) * | 2015-12-18 | 2016-03-23 | 山东省农业机械科学研究院 | Cereal circulating drying machine and control method thereof |
| CN108592609A (en) * | 2018-04-26 | 2018-09-28 | 江苏金汉新材料有限公司 | Active air convection current energy conservation and environmental protection drying tower |
| CN110542300A (en) * | 2019-09-25 | 2019-12-06 | 吉林大学 | continuous-circulation dual-mode electric heating grain dryer and control method thereof |
| CN112197524A (en) * | 2020-10-10 | 2021-01-08 | 扬州纽兰工程科技有限公司 | Assembled grain stoving room of high-capacity module structure |
| CN112400991A (en) * | 2020-10-13 | 2021-02-26 | 江苏景山生态有机农业有限公司 | Rice drying process |
| CN112503922A (en) * | 2020-11-19 | 2021-03-16 | 合肥三伍机械有限公司 | Bidirectional overload adjusting device of drying machine |
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| CN1432520A (en) * | 2002-01-12 | 2003-07-30 | 王俊斗 | Automatic ventilating, stoving, cooling and dehumidifying system for granary |
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| CN204259729U (en) * | 2014-10-27 | 2015-04-15 | 枝江市鹏达机械有限责任公司 | The reverse-flow foodstuff drying device of series connection hot type |
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| CN2084183U (en) * | 1990-12-19 | 1991-09-04 | 克山县克山粮库 | Laminated grain direr |
| CN1432520A (en) * | 2002-01-12 | 2003-07-30 | 王俊斗 | Automatic ventilating, stoving, cooling and dehumidifying system for granary |
| CN2606316Y (en) * | 2003-03-16 | 2004-03-10 | 商水县福安粮机制造有限公司 | Movable circulatnig grain drier |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105053186A (en) * | 2015-08-21 | 2015-11-18 | 无锡市海昌机械设备有限公司 | Novel grain drying machine |
| CN105410172A (en) * | 2015-12-18 | 2016-03-23 | 山东省农业机械科学研究院 | Cereal circulating drying machine and control method thereof |
| CN108592609A (en) * | 2018-04-26 | 2018-09-28 | 江苏金汉新材料有限公司 | Active air convection current energy conservation and environmental protection drying tower |
| CN108592609B (en) * | 2018-04-26 | 2024-04-30 | 江苏金汉新材料有限公司 | Active air convection energy-saving environment-friendly drying tower |
| CN110542300A (en) * | 2019-09-25 | 2019-12-06 | 吉林大学 | continuous-circulation dual-mode electric heating grain dryer and control method thereof |
| CN112197524A (en) * | 2020-10-10 | 2021-01-08 | 扬州纽兰工程科技有限公司 | Assembled grain stoving room of high-capacity module structure |
| CN112400991A (en) * | 2020-10-13 | 2021-02-26 | 江苏景山生态有机农业有限公司 | Rice drying process |
| CN112503922A (en) * | 2020-11-19 | 2021-03-16 | 合肥三伍机械有限公司 | Bidirectional overload adjusting device of drying machine |
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Application publication date: 20150114 |
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