CN202184089U - Vacuum low-temperature grain drying tower - Google Patents
Vacuum low-temperature grain drying tower Download PDFInfo
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- CN202184089U CN202184089U CN2011202128069U CN201120212806U CN202184089U CN 202184089 U CN202184089 U CN 202184089U CN 2011202128069 U CN2011202128069 U CN 2011202128069U CN 201120212806 U CN201120212806 U CN 201120212806U CN 202184089 U CN202184089 U CN 202184089U
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Abstract
The utility model relates to a vacuum low-temperature grain drying tower. The grain drying tower comprises a grain slowering device, a storage barn, a drying chamber, a grain discharge device, an evacuating device and a heating device, wherein the grain slowering device, the storage barn, the drying chamber and the grain discharge device are sequentially connected from the top down; the evacuating device is communicated with the drying chamber; the vacuum low-temperature grain drying tower further comprises a heat exchange device communicated with the heating device and the drying chamber respectively. In the grain drying tower, coal is converted into coal gas for combustion and heated together with a small quantity of water meson in the conversion process of water vapor and condensed water, besides, owing to two-stage six-backhaul thin-grain-bed vacuum low temperature, vacuity is increased in the first stage to improve the moisture evaporation capacity, therefore, the grain quality is good, the water reduction speed is high, the output is high and the energy consumption is low.
Description
Technical field
The utility model relates to the grain drying tower, particularly a kind of grain vacuum dehydrating at lower temperature tower.
Background technology
The grain drying tower provides a kind of equipment of drying grain, and the grain industry is used widely in the rural area at present, along with the timely deep exploitation of developing rapidly of science and technology to product, and also higher to the requirement of technology: the color, smell, taste and shape that guarantee grain; And nutritional labeling, it is good to have a drying quality, and precipitation speed is fast, and output is high; Environmental protection, energy consumption is low, and is easy to operate; The economy price ratio is high, how better to solve the problem of these several respects, is a very important problem.
At present, the existing grain drying technology overwhelming majority adopts high temperature under the normal pressure, and in short-term, large-tonnage hot-air seasoning, hot blast temperature are all more than 120 degrees centigrade.Corn produces a large amount of stress crackings in the high-temperature hot-air drying course, severe crack, severe exacerbation the interior quality of grain.Be prone to fragmentation, embryo is taken off in decortication; Flour extraction reduces, and fat content descends, starch gelatinization; Bad change takes place in performance, has lost original quality of corn and special fragrance, and most of heat energy is taken away by waste gas in the hot-air seasoning process; Heat utilization efficiency is very low, has only 30%, and the flue gas that fire grate goes out has caused pollution to environment.
The utility model content
In order to solve the energy waste of above-mentioned grain drying equipment, the destruction of grain quality, to the problem that environment pollutes, the purpose of the utility model is to provide that a kind of environmental protection, grain are guaranteed the quality, the grain vacuum dehydrating at lower temperature tower of energy-conservation, colleges and universities.
To achieve these goals, the utility model adopts following technical scheme.
A kind of grain vacuum dehydrating at lower temperature tower; Comprise slow grain device, grain storage storehouse, hothouse, grain discharging device, vacuum extractor and heating plant; Wherein, slow grain device, grain storage storehouse, hothouse and grain discharging device connect from top to bottom successively, and vacuum extractor is communicated with hothouse; Said drying tower also comprises heat-exchanger rig, this heat-exchanger rig respectively with said heating plant and said hothouse in heat pipe be communicated with.
Said heat-exchanger rig comprises two heat transfer zone, and each heat transfer zone includes one group of heat exchanger respectively, and two groups of heat exchangers are interconnected, wherein second group of heat exchanger with draw the cigarette blower fan and be connected, be connected with chimney again; Second heat transfer zone is connected with said hothouse through the steam heat pipe.
Said heat-exchanger rig comprises three heat transfer zone, and each heat transfer zone includes one group of heat exchanger respectively, and three groups of heat exchangers are connected in series, wherein the 3rd group of heat exchanger with draw the cigarette blower fan and be connected, be connected with chimney again; The 3rd heat transfer zone is connected with said hothouse through the steam heat pipe.
Said heating plant comprises coal store, burning zone, efficiently steam fire grate, high-temperature burner hearth and dust-settling compartment; Wherein coal store, burning zone, efficiently steam fire grate, high-temperature burner hearth connects from top to bottom successively; Dust-settling compartment one end is connected with the outlet flue of high-temperature burner hearth one side, and the dust-settling compartment other end is connected with said heat-exchanger rig.
Said heating plant also comprises second-time burning fire grate and slag remover, and the after-burning stove ranking is in the bottom of said high-temperature burner hearth, and slag remover is connected with the cinder notch that removes of high-temperature burner hearth bottom.
The drying tower also includes oxygen supplied to the turbine unit, the oxygen supplied to the turbine unit including water boxes, steam pipes, steam adjusting valve, steam-oxygen mixture tube, oxygen and oxygen hot air distribution pipes, the water box disposed in the high-temperature furnace around connected with the steam pipe, installed on the steam pipe tune steam valves, steam pipes and steam-oxygen mixture pipe connections, steam and high temperature oxygen mixing tube connected to an upper chamber, the steam-oxygen mixture with oxygen tube and then distributing pipe connected to the oxygen distribution pipe and Oxygen hot air connections, hot air with the oxygen in the high-temperature furnace heating device connected to the bottom.
Said hothouse comprises the two sections heat transfer device, and per two sections heat transfer devices comprise up and down heat pipe respectively, and is equipped with heavy grain and divides the grain box; Heavy grain divide the grain box below be provided with cooler bin; Connect grain discharging device below the cooler bin, cooler bin divides the grain box to be connected with said vacuum extractor respectively with two heavy grains, and last heat pipe is connected with said heat-exchanger rig through the steam heat pipe; Following heat pipe is connected with the water level pressure device through condenser pipe, and this water level pressure device is connected with said heat-exchanger rig again.
Said hothouse both sides are steam walking casees, and are connected with said water level pressure device through condensate pipe.
Be provided with heat-insulation layer around the said hothouse.
What walk in the Tube Sheet of Heat Exchanger in the said heat-exchanger rig is cigarette, and the outer dress of pipe water meson is through the steam conversion; Further moist steam is dry; Air communication is crossed the steam thermal conductive pipe and is got in the heat pipe in the hothouse, passes through the steam separating opening again, and steam gets in the steam walking case; In the condensation flow backed-up water level pressure device, flow back in the heat-exchanger rig at last.
The operation principle of the utility model: the grain grain storage storehouse of packing on the grain device of postponing, start vacuum extractor, again coal store is filled coal; Add water to three/place to the water meson of heat-exchanger rig; The oven door opening of high-temperature burner hearth, put into the material that is used to burn, ignition-material by door; Start and draw cigarette blower fan and oxygen supply blower fan, flue gas flows out from chimney.When the water temperature in the high-temperature burner hearth ambient water box reaches 100 degrees centigrade, produce water vapour, mixed up the steam valve door; Water vapour and oxygen get in the high-temperature burner hearth through vapour oxygen mixing tube; Pass burning zone, coal is converted into water-gas, in high-temperature burner hearth, lights; Flue gas passes heat exchanger, and the outer water endothermic disintergration of Tube Sheet of Heat Exchanger is that water vapour gets in the heat pipe in the hothouse.Dry indoor temperature is 35-40 degree centigrade, vacuum reaches-during 0.096Mpa, start vacuum extractor and grain discharging device.
Because of there being water vapour to pass the burning of coal layer, the steam volume increases volume at once, has opened the coking of coal, and coal is with the slag notch of granule shape entering wind, and slag remover wind-force is seen off.
In sum, the utlity model has following advantage and good effect:
1, the utility model grain vacuum dehydrating at lower temperature tower is that coal conversion coal gas burns again, makes the low amounts of water meson in water vapour and condensed water conversion process, heat completion, has greatly improved energy utilization rate, has reduced the cost of equipment, can save 50% the energy.Therefore the utility model environmental protection, efficient, energy-conservation.
2, the utility model grain vacuum dehydrating at lower temperature tower is two sections heat transfer devices, vacuum and low temperature (35-40 degree centigrade), and first section is strengthened vacuum, has improved water evaporation quantity, has guaranteed the grain initial quality after the oven dry, proposes the theory of grain green drying.Therefore grain matter is good, and precipitation speed is fast, and output is high, low energy consumption.
Description of drawings
Fig. 1 is the utility model grain vacuum dehydrating at lower temperature tower structure sketch map;
Fig. 2 is that the A of Fig. 1 is to sketch map.
Wherein: 1, coal store, 2, burning zone, 3, the efficient fire grate that steams, 4, high-temperature burner hearth, 5, the second-time burning fire grate, 6, vapour oxygen mixing tube; 7, oxygen supply manifold, 8, the oxygen supply air-heater, 9, slag remover, 10, transfer the steam valve door, 12, outlet flue, 13, dust-settling compartment; 14, first group of heat exchanger, 18, second groups of heat exchangers, 19, the steam heat pipe, 20, the water level pressure device, 21, draw the cigarette blower fan, 22, chimney; 23, slow grain device, 24, the grain storage storehouse, 25, heat pipe, 26, heavy grain divides the grain box, 27, air-introduced machine, 30, air-introduced machine; 34, cooler bin, 35, air-introduced machine, 36, grain discharging device, 38, heat pipe, 39, the 3rd groups of heat exchangers, 40, heat-insulation layer.
The specific embodiment
Specify the utility model below in conjunction with accompanying drawing.
Like Fig. 1, shown in Figure 2; Grain vacuum dehydrating at lower temperature tower; Comprise slow grain device 23, grain storage storehouse 24, hothouse, grain discharging device 36, vacuum extractor and heating plant, wherein slow grain device 23, grain storage storehouse 24, hothouse and grain discharging device 36 connect from top to bottom successively, and vacuum extractor is connected with hothouse; Grain vacuum dehydrating at lower temperature tower further comprises heat-exchanger rig, this heat-exchanger rig respectively with heating plant and hothouse in heat pipe be communicated with.
Said heat-exchanger rig comprises three heat transfer zone; Each heat transfer zone includes one group of heat exchanger respectively; First group of heat exchanger 14 is connected with second group of heat exchanger 18 in second heat transfer zone through the back smoke box; Second group of heat exchanger 18 is connected with the 3rd group of heat exchanger 39 in the 3rd heat transfer zone through front smoke box, the 3rd group of heat exchanger 39 with draw cigarette blower fan 21 and be connected, be connected with chimney 22 again; The 3rd heat transfer zone is connected with the interior heat pipe 25 of hothouse through steam heat pipe 19.
Said heating plant comprises coal store 1, burning zone 2, efficiently steam fire grate 3, high-temperature burner hearth 4 and dust-settling compartment 13; Wherein coal store 1, burning zone 2, efficiently steam fire grate 3 and high-temperature burner hearth 4 connects from top to bottom successively; One end of dust-settling compartment 13 is connected with the outlet flue in high-temperature burner hearth 4 left sides, and the other end is connected with first group of heat exchanger 14 in the said heat-exchanger rig.
Said heating plant also comprises second-time burning fire grate 5 and slag remover 9, and the after-burning stove ranking is in the bottom of high-temperature burner hearth 4, and slag remover 9 removes cinder notch with the bottom of high-temperature burner hearth 4 and is connected.
The food also includes low-temperature vacuum drying tower oxygen supplied to the turbine unit, the oxygen supplied to the turbine unit including water boxes, steam pipes, steam adjusting valve 10, the steam-oxygen mixture tube 6, 7 and oxygen oxygen distribution pipe hot air 8, said water Box 4 disposed at the periphery of the furnace temperature steam pipe connected to the steam pipe is installed on the tone steam valve 10, the steam pipe 6 and the high-oxygen mixture upper chamber 4 communicates oxygen mixture gas pipe 6 communicates with the steam, and oxygen of the pipe 7 communicates with the oxygen, oxygen 8 hot air distribution pipe 7 communicates the left lower portion of the high temperature combustion chamber 4 communicates position.
Said hothouse comprises two section six backhaul heat transfer device, and every section six backhaul heat transfer device comprises heat pipe 25,38 respectively, and is equipped with heavy grain and divides the grain box; Every section heavy grain divides the grain box to be connected with vacuum extractor respectively through the moisture pipeline; This vacuum extractor comprises air-introduced machine 27,30,35, and air-introduced machine 27 divides the grain box to be connected with the heavy grain of epimere, and air-introduced machine 30 divides the grain box to be connected with the heavy grain of hypomere; Heavy grain divide the grain box below be provided with cooler bin 34; Connect grain discharging device 36 below the cooler bin 34, air-introduced machine 35 is connected with cooler bin 34, and heat pipe 25 is connected with heat-exchanger rig through steam heat pipe 19; Heat pipe 38 is connected with water level pressure device 20 through condenser pipe, and water level pressure device 20 is connected with heat-exchanger rig again.
The hothouse both sides are steam walking casees, and are connected with said water level pressure device 20 through condensate pipe.
Be provided with heat-insulation layer 40 around the hothouse.
What walk in the Tube Sheet of Heat Exchanger in the heat transfer zone is cigarette, the outer dress of pipe water meson, and each district all separates with iron plate, forms independent heat transfer zone, but is connected.First heat transfer zone is the steam transition zone, and the two or three heat transfer zone is the moist steam dry section.Dry saturated steam is through in the heat pipe 25,38 in the heat transfer device in the steam heat pipe 19 entering hothouses, and through steam separating opening, steam walking case, condensed water flows back in the water level pressure device 20 through condenser pipe, flow back in the heat-exchanger rig more again.
The course of work of the utility model: the grain grain storage storehouse 24 of packing on the grain device 23 of postponing; Start air-introduced machine 27 and 30, the water meson of again coal store 1 being filled heat transfer zone in coal and the dry saturated steam normal pressure vapour stove is added to 1/3rd places, with the oven door opening of high-temperature burner hearth 4; Put into the material that is used to burn by door; Material is being fired in igniting, starts to draw cigarette blower fan 21 and oxygen supply air-heater 8, and flue gas flows out from chimney 22.When the water temperature in the high-temperature burner hearth 4 ambient water boxes reaches 100 degrees centigrade, produce water vapour, mixed up steam valve door 10; Water vapour and oxygen get in the high-temperature burner hearth 4 through vapour oxygen mixing tube 6, pass burning zone 2, and coal has transformed water-gas; In high-temperature burner hearth 4, light; Flue gas passes heat exchanger, and the outer water endothermic disintergration of Tube Sheet of Heat Exchanger is a steam, gets in two section six backhaul vacuum dehydrating at lower temperature device.
The walking that grain is conducted oneself with dignity in the vacuum dehydrating at lower temperature tower; Get in two section six backhaul vacuum dehydrating at lower temperature device, dry saturated steam is at the heat conduction walking in pipe, and grain is walked outside heat pipe; Add heavy grain and divide that the grain box is outer, the centre is slowly passed; Form thin grain bed, add air-introduced machine and take air and water vapour in the hothouse away, formed negative pressure drying in the hothouse.Vacuum reaches-during 0.096mpa, start air-introduced machine 35 and grain discharging device 36.First section is strengthened vacuum value of velocity, has accelerated rate of drying, and second section when adopting vacuum-0.096mpa, cereal temperature is at 35-40 degree centigrade in the hothouse, and vacuum use the air-introduced machine gate control, and the interior temperature of tower is controlled with grain discharging device.
Because of there being steam to pass burning of coal layer 2, the water vapour volume increases volume at once, has opened the coking of coal, and coal gets into slag notch with the granule shape, and slag remover 9 wind-force are seen off.
Therefore the utility model is that a kind of environmental protection, grain are guaranteed the quality, energy-conservation, grain vacuum dehydrating at lower temperature tower efficiently.
Claims (9)
1. grain vacuum dehydrating at lower temperature tower; Comprise slow grain device (23), grain storage storehouse (24), hothouse, grain discharging device (36), vacuum extractor and heating plant; Wherein slow grain device (23), grain storage storehouse (24), hothouse and grain discharging device (36) connect from top to bottom successively; Vacuum extractor is connected with hothouse, it is characterized in that: said drying tower also comprises heat-exchanger rig, and this heat-exchanger rig is communicated with said heating plant and said hothouse respectively.
2. grain vacuum dehydrating at lower temperature tower according to claim 1; It is characterized in that: said heat-exchanger rig comprises two heat transfer zone; Each heat transfer zone includes one group of heat exchanger respectively; Two groups of heat exchangers are interconnected, wherein second group of heat exchanger (18) with draw cigarette blower fan (21) and be connected, be connected with chimney (22) again; Second heat transfer zone is connected with said hothouse through steam heat pipe (19).
3. grain vacuum dehydrating at lower temperature tower according to claim 1; It is characterized in that: said heat-exchanger rig comprises three heat transfer zone; Each heat transfer zone includes one group of heat exchanger respectively; Three groups of heat exchangers are connected in series, wherein the 3rd group of heat exchanger (39) with draw cigarette blower fan (21) and be connected, be connected with chimney (22) again; The 3rd heat transfer zone is connected with said hothouse through steam heat pipe (19).
4. grain vacuum dehydrating at lower temperature tower according to claim 1; It is characterized in that: said heating plant comprises coal store (1), burning zone (2), efficiently steam fire grate (3), high-temperature burner hearth (4) and dust-settling compartment (13); Wherein coal store (1), burning zone (2), efficiently steam fire grate (3) and high-temperature burner hearth (4) connects from top to bottom successively; Dust-settling compartment (13) one ends are connected with the outlet flue (12) of high-temperature burner hearth (4) one sides, and the other end is connected with said heat-exchanger rig.
5. grain vacuum dehydrating at lower temperature tower according to claim 4; It is characterized in that: said heating plant also comprises second-time burning fire grate (5) and slag remover (9); Second-time burning fire grate (5) is positioned at the bottom of said high-temperature burner hearth (4), and slag remover (9) is connected with the cinder notch that removes of said high-temperature burner hearth (4) bottom.
As claimed in claim 4, wherein the low-temperature vacuum drying tower grain, characterized in that: said drying column further comprises an oxygen gas supply means, the oxygen supply means including water vapor cartridge, steam pipes, steam adjusting valve (10), steam oxygen mixing tube (6), the oxygen distribution pipe (7) and oxygen hot air (8), disposed in said high temperature water cartridge chamber (4) around the steam pipe is connected to a steam pipe steam valve is installed on the tone (10 ), steam-oxygen mixture with steam pipe (6) connected to an oxygen gas mixing tube (6) and said high temperature furnace (4) connected to the upper, oxygen mixture gas pipe (6) and then with oxygen dispensing tube (7) is connected, Oxygen dispensing tube (7) hot air and oxygen (8) is connected, oxygen hot air (8) and said high temperature furnace (4) connected to the bottom.
7. grain vacuum dehydrating at lower temperature tower according to claim 1; It is characterized in that: said hothouse comprises the two sections heat transfer device; Every section heat transfer device comprises heat pipe (25), (38) up and down respectively; And be equipped with heavy grain and divide grain box (26), following heavy grain divides grain box bottom to be provided with cooler bin (34), connects grain discharging device (36) under the cooler bin (34); Cooler bin (34) divides grain box (26) to be connected with said vacuum extractor respectively with two heavy grains; Last heat pipe (25) is connected with said heat-exchanger rig through steam heat pipe (19), and following heat pipe (38) is connected with water level pressure device (20) through condenser pipe, and this water level pressure device (20) is connected with said heat-exchanger rig again.
8. grain vacuum dehydrating at lower temperature tower according to claim 7 is characterized in that: said hothouse both sides are steam walking casees, and are connected with said water level pressure device (20) through condensate pipe.
9. grain vacuum dehydrating at lower temperature tower according to claim 1 is characterized in that: be provided with heat-insulation layer (40) around the said hothouse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202128069U CN202184089U (en) | 2011-06-22 | 2011-06-22 | Vacuum low-temperature grain drying tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202128069U CN202184089U (en) | 2011-06-22 | 2011-06-22 | Vacuum low-temperature grain drying tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202184089U true CN202184089U (en) | 2012-04-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202128069U Expired - Fee Related CN202184089U (en) | 2011-06-22 | 2011-06-22 | Vacuum low-temperature grain drying tower |
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| Country | Link |
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| CN (1) | CN202184089U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764312A (en) * | 2014-01-02 | 2015-07-08 | 程长青 | Vacuum drying tower |
| CN105276953A (en) * | 2014-07-26 | 2016-01-27 | 程长青 | Parallel flow and counter flow circulation hot air drying tower |
| CN108302907A (en) * | 2018-01-26 | 2018-07-20 | 合肥托卡拉图科技有限公司 | A kind of onboard integrated Grain drier and its drying means |
-
2011
- 2011-06-22 CN CN2011202128069U patent/CN202184089U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764312A (en) * | 2014-01-02 | 2015-07-08 | 程长青 | Vacuum drying tower |
| CN104764312B (en) * | 2014-01-02 | 2017-05-24 | 程长青 | Vacuum drying tower |
| CN105276953A (en) * | 2014-07-26 | 2016-01-27 | 程长青 | Parallel flow and counter flow circulation hot air drying tower |
| CN105276953B (en) * | 2014-07-26 | 2018-06-01 | 程长青 | The circulating air drying tower of concurrent-countercurrent |
| CN108302907A (en) * | 2018-01-26 | 2018-07-20 | 合肥托卡拉图科技有限公司 | A kind of onboard integrated Grain drier and its drying means |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120411 Termination date: 20150622 |
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| EXPY | Termination of patent right or utility model |