CN103277986A - Low-consumption combined drying technique for residue materials - Google Patents
Low-consumption combined drying technique for residue materials Download PDFInfo
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- CN103277986A CN103277986A CN2013101646416A CN201310164641A CN103277986A CN 103277986 A CN103277986 A CN 103277986A CN 2013101646416 A CN2013101646416 A CN 2013101646416A CN 201310164641 A CN201310164641 A CN 201310164641A CN 103277986 A CN103277986 A CN 103277986A
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Abstract
The invention discloses a low-consumption combined drying technique for residue materials. The dewatering and drying technique comprises four steps: belt filter pressing, solar energy airing, rotary barrel drying and back flow cooling. According to the technique, in the step of belt filter pressing, the water in the residue materials is reduced from 80% to 65% through a belt filter press 11, 55.46% of the total removed water is removed; in the step of solar energy airing, the water in the residue materials is reduced from 65% to 33%, 34.13% of the total removed water is removed; in the step of high temperature rotary drying, the water in the residue materials is reduced from 35% to 15%, 9.37% of the total removed water is removed; in the step of back flow cooling, the water in the residue materials is reduced from 15% to 12%, and 1.04% of the total removed water is removed. By means of the low-consumption combined drying technique for the residue materials, the energy-saving effect is obvious, and 65kg coals and 35kw*h power are consumed for per ton of residue materials in theory.
Description
Technical field
The invention belongs to the technology field that dehydrates of distillers grains and dregs material, relate in particular to a kind of distillers grains and dregs material low energy consumption combined drying process.
Background technology
But the distillers grains and dregs material is the high-quality feed raw material that a kind of extensive exploitation utilizes, and contains abundant trace element and protein, and raising is worth higher, and its output is very considerable.
Distillers grains and dregs material initial aqueous rate is higher, generally about 80%, directly adopts extremely moisture 12% product of heated-air drying, and dehydrating amount is big, energy consumption is high; The pure heated-air drying of theoretical calculating obtains the 1000kg product, needs to handle 4400kg wet stock, the total amount of anhydrating 3400kg, needs power consumption 4.08x10
6Kcal (by whenever going 1kg water 1200kcal to calculate), ton product coal consumption 680kg (the coal calorific value is pressed 6000kcal/kg and calculated).The value of the product that according to said method obtains is not also supported the cost of energy resource consumption.
The normally first plate compression of domestic actual production is the technology of revolving drum drying again, and plate compression is moisture 60% to the distillers grains and dregs material, is dried to moisture 12% with revolving drum again; This method adopt heating power to anhydrate still to account for always anhydrate 35%, theoretical calculate the method dry the 1000kg product, heating power anhydrate 1200kg, need power consumption 1.44x10
6Kcal (by whenever going 1kg water 1200kcal to calculate), ton product coal consumption 288kg (the coal calorific value is pressed 6000kcal/kg and calculated).Domestic also have some other special-purpose distillers grains and dregs dry materials equipment, but by the moisture of consumes energy with hot blast removal distillers grains and dregs material, the energy resource consumption that can't further lower the distillers grains and dregs material, maximization reduces the drying cost of product.
Summary of the invention
At the existing design drawback of background technology, the present invention is intended to disclose a kind of distillers grains and dregs material low energy consumption combined drying process.
It is to introduce solar energy to be used for the distillers grains and dregs dry materials that technology of the present invention solves the technical scheme that its technical problem adopts, and takes full advantage of the energy-conservation characteristic of solar environment friendly, reduces the drying Energy Consumption Cost of distillers grains and dregs material.But because solar energy drying is subjected to weather influence bigger, and there are the factors of instability in weather, when noon, Exposure to Sunlight was strong, solar dryer indoor and outdoor temperature difference can be up to more than 15 ℃, and overcast and rainy or night, the indoor and outdoor temperature difference is very little, influences drying effect.At this unstable characteristic of solar energy, the present invention increases air devider, even wind device and accessory fan and carries out drying as auxiliary thermal source on the Equipment Foundations of the supporting high temperature coal hot-blast stove of revolving drum drying machine.When illumination is strong in the daytime, only utilize solar energy drying, to save drying cost; When overcast and rainy or night, open auxiliary thermal source to guarantee drying effect.
Distillers grains and dregs material low energy consumption combined drying process of the present invention may further comprise the steps: the first step: moisture content 80% or 80% above distillers grains and dregs material are down to moisture content 65% by the belt filter press dehydration, and maximization keeps the active ingredient of distillers grains and dregs material; Second step: the distillers grains and dregs material of being down to moisture content 65% through dehydration tiles and be dried to moisture content 35% to solar dryer, and the distillers grains and dregs material does not have viscosity under this moisture, is conducive to mechanical heating power drying; Daytime is when sunny, and solar dryer is opened accessory fan automatically according to wherein temperature or humidity and inhaled natural wind and dispel the heat; When overcast and rainy and evening, sunshine was not enough, then utilize the hot blast of coal-fired generation in the coal-fired hot-blast stove to enter even wind device by air devider portions high-temperature hot-air, utilize even wind device control high-temperature hot-air and natural wind ratio to regulate air themperature, be blown into through accessory fan again and assist heat drying in the solar dryer; The branch airduct that described natural wind or hot blast arrange through the solar dryer bottom from the air outlet of accessory fan, enter in openend and some the wind distributing grooves that divide airduct to communicate, stacked air inlet from the setting of wind distributing groove madial wall is blown into some the V-type geosynclines of solar dryer bottom again, run through at last and on blow to the top of solar dryer, realize inhaling natural wind heat radiation drying or hot blast heat drying; The 3rd step: will be down to the distillers grains and dregs material collection of moisture content 35% to middle warehouse through the solar dryer drying, be delivered in the revolving drum drying machine by revolving drum, by main air blower the hot blast that the coal-fired hot-blast stove burning produces is blown in the revolving drum drying machine, adopts 420-620 ℃ of high temperature to carry out drying and be down to moisture content 15%; The 4th step: in conjunction with the distillers grains and dregs material of the logical natural wind of blower fan after with the 3rd step high temperature drying, be down to moisture content 12% by counter-current cooler.
Beneficial effect of the present invention and substantial improvements are:
1, utilizes the water signature of distillers grains and dregs material, dehydrate technology by " belt press filtration---cooling of solar airing---revolving drum drying---adverse current " four steps, introduce solar energy and be used for the distillers grains and dregs dry materials, take full advantage of the energy-conservation characteristic of solar environment friendly, reduce the drying Energy Consumption Cost of distillers grains and dregs material.Distillers grains and dregs material added value of product is low, and can reduce distillers grains and dregs dry materials cost be the key that can the distillers grains and dregs material effectively utilize, and this method drops to 65% with the distillers grains and dregs material moisture from 80% with the belt press filtration, removes 55.46% of the total amount of anhydrating; Solar airing drops to 35% with the distillers grains and dregs material moisture from 65%, removes 34.13% of the total amount of anhydrating; High temperature rotating tube drying drops to 15% with the distillers grains and dregs material moisture from 35%, removes 9.37% of the total amount of anhydrating; Adverse current cooling drops to 12% with the distillers grains and dregs material moisture from 15%, removes 1.04% of the total amount of anhydrating.This method energy consumption is low, ton product coal consumption 65kg (the coal calorific value press 6000kcal/kg calculating) in theory, power consumption 35kwh.
2, on the Equipment Foundations of the supporting high temperature coal hot-blast stove of revolving drum drying machine drying, increase air devider, even wind device and accessory fan and be dried to moisture content 35% as auxiliary thermal source, the distillers grains and dregs material does not have viscosity under this moisture, is conducive to mechanical heating power drying, and drying effect is splendid.
3, temperature of charge was higher after the revolving drum drying machine was used the hot blast high temperature drying, in conjunction with the logical natural wind cooling of counter-current cooler heat radiation moisture was down to moisture content 12%, than only being dried to 12% with the revolving drum drying machine, saved 1% energy consumption, and is energy-conservation more obvious.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is further elaborated.
Fig. 1 is the structural representation of distillers grains and dregs material low energy consumption combination drying device of the present invention;
Fig. 2 is the vertical section structure figure of solar dryer of the present invention;
Fig. 3 is the plan structure figure of solar dryer of the present invention;
Fig. 4 is the enlarged diagram of wind distributing groove of the present invention and V-type geosyncline.
Among the figure: solar dryer 1, middle warehouse 2, revolving drum 3, revolving drum drying machine 4, counter-current cooler 5, coal-fired hot-blast stove 6, accessory fan 7, air devider 8, even wind device 9, main air blower 10, belt filter press 11, wind distributing groove 12, V-type geosyncline 13, branch airduct 14, stacked air inlet 15.
The specific embodiment
Fig. 1 shows most preferred embodiment of the present invention, the distillers grains and dregs material of moisture content more than 80% is down to moisture content 65% by belt filter press 11 dehydrations, the active ingredient of distillers grains and dregs material can maximize reservation under this moisture, can not drip naturally simultaneously, filtrate focuses on, and can prevent filtrate crossing current contaminated environment.Tiling airing 24 hours to the custom-designed solar dryer 1 is dried to moisturely 35%, and daytime is when sunny, and solar dryer 1 is opened accessory fan 7 automatically according to wherein temperature or humidity and inhaled natural winds and dispel the heat; When overcast and rainy and evening, sunshine was not enough, then utilize the hot blast of coal-fired generation in the coal-fired hot-blast stove 6 to enter even wind device 9 by 8 fens a small amount of high-temperature hot-airs of air devider, thereby utilize even wind device 9 control high-temperature hot-airs and natural wind ratio to regulate air themperature, be blown in the solar dryer 1 through accessory fan 7 again and assist heat drying.
In the warehouse 2, be delivered in the revolving drum drying machine 4 by revolving drum 3 in being collected in then, by main air blower 10 hot blast that coal-fired hot-blast stove 6 burnings produce be blown in the revolving drum drying machine 4, adopt 500 ℃ of high temperature to carry out drying and be down to moisture content 15%; Through counter-current cooler 5 moisture 15% material of the 3rd step gained is down to moisture 12% finished product again, take full advantage of the 3rd the step high temperature drying after the higher characteristics of temperature of charge, can fall 3%～5% moisture with the logical natural wind of blower fan, than the 3rd step convection drying to 12%, save 1% energy consumption.
The present invention is used for realizing that the apparatus structure of above-mentioned drying process comprises: the belt filter press 11 of the distillers grains and dregs material dewatering more than moisture content 80% or 80% being down to moisture content 65%; Join, utilize the solar dryer 1 of solar airing drying with the outlet of belt filter press 11; Warehouse 2 for material behind the collection solar energy drying; Link to each other, be responsible for dosing in the revolving drum 3 of revolving drum drying machine 4 with the lower end outlet of middle warehouse 2; Feeding mouth and revolving drum 3 lower port are joined and the revolving drum drying machine 4 of heated-air drying are provided by coal-fired hot-blast stove 6 fire coals; The hot blast of coal-fired hot-blast stove 6 is blown into the main air blower 10 of revolving drum drying machine 4; Material after the high temperature drying is carried out the counter-current cooler 5 of adverse current cooling.And the air devider 8 that the coal-fired hot blasts that produce of coal-fired hot-blast stove 6 are distributed; Link to each other, control to adjust the even wind device 9 of high-temperature hot-air and natural wind ratio with the outlet of air devider 8; The hot blast that links to each other, will regulate temperature with even wind device 9 is sent into accessory fan 7 (see figure 1)s of assisting heat drying in the solar dryer.
Fig. 2-Fig. 4 illustrates the air intake schematic diagram of custom-designed solar dryer.Solar dryer 1 is the expanded type container, its bottom water is divided equally and is covered with some wind distributing grooves 12, be V-type geosyncline 13 between each bar wind distributing groove 12, wind distributing groove 12 is arranged at interval with V-type geosyncline 13, the bottom of solar dryer 1 is provided with the branch airduct 14 that air inlet is communicated with the air outlet of accessory fan 7, airduct 14 communicated with the openend of each wind distributing groove 12 in described minute, and the madial wall of wind distributing groove 12 is provided with stacked air inlet 15.Natural wind or hot blast are blown into the branch airduct 14 of solar dryer 1 bottom from the air outlet of accessory fan 7, enter the openend of the wind distributing groove 12 that communicates with minute airduct 14 again, stacked air inlet 15 from wind distributing groove 12 madial walls is blown into the V-type geosyncline 13 of solar dryer 1 bottom again, run through material at last and on blow to the top of solar dryer 1, utilize 13 guide effects of V-type geosyncline evenly upwards to divide wind, reach the purpose of even dry distillers grains and dregs material, with respect to sieve aperture, the stacked air inlet 15 of wind distributing groove 12 sides had both reached even minute wind purpose, can prevent effectively that again material from stopping up sieve aperture, realize inhaling natural wind heat radiation drying or hot blast heat drying.
The distillers grains and dregs material low energy consumption combined drying process of present embodiment can be applicable to contain the drying of the less materials of raw material viscosity such as the beer slag of a large amount of fibrous materials and water chestnut slag.
Drying process of the present invention utilizes the water signature of distillers grains and dregs material, formulating " belt press filtration---cooling of solar airing---revolving drum 3 dryings---adverse current " four goes on foot and dehydrates technology, with the distillers grains and dregs material moisture from 80% or more than be down to 12%, ton product coal consumption 65kg on this theoretical method, power consumption 35kwh, energy-saving effect is remarkable.
Above content is in conjunction with further describing that concrete main embodiment is done, and can not assert that concrete enforcement of the present invention is confined to these explanations.Those skilled in the art without departing from the inventive concept of the premise, some other technology of done accurately, the deduction or replace that beautify, all should belong to protection scope of the present invention.
Claims (1)
1. distillers grains and dregs material low energy consumption combined drying process is characterized in that: comprise following processing step:
The first step: moisture content 80% or 80% above distillers grains and dregs material are down to moisture content 65% by the belt filter press dehydration, keep the active ingredient of distillers grains and dregs material;
Second step: the distillers grains and dregs material of being down to moisture content 65% through dehydration tiles and be dried to moisture content 35% to solar dryer, and the distillers grains and dregs material does not have viscosity under this moisture, is conducive to mechanical heating power drying;
Daytime is when sunny, and solar dryer is opened accessory fan automatically according to wherein temperature or humidity and inhaled natural wind and dispel the heat; When overcast and rainy and evening, sunshine was not enough, then utilize the hot blast of coal-fired generation in the coal-fired hot-blast stove to divide high-temperature hot-air to enter even wind device by air devider, utilize even wind device control high-temperature hot-air and natural wind ratio to regulate air themperature, be blown into through accessory fan again and assist heat drying in the solar dryer; The branch airduct that natural wind or hot blast arrange through the solar dryer bottom from the air outlet of accessory fan, enter in openend and some the wind distributing grooves that divide airduct to communicate, stacked air inlet from the setting of wind distributing groove madial wall is blown into some the V-type geosynclines of solar dryer bottom again, run through at last and on blow to the top of solar dryer, realize inhaling natural wind heat radiation drying or hot blast heat drying;
The 3rd step: will be down to the distillers grains and dregs material collection of moisture content 35% to middle warehouse through the solar dryer drying, be delivered in the revolving drum drying machine by revolving drum, by main air blower the hot blast that the coal-fired hot-blast stove burning produces is blown in the revolving drum drying machine, adopts 420-620 ℃ of high temperature to carry out drying and be down to moisture content 15%;
The 4th step: with the 3rd distillers grains and dregs material of step after the high temperature drying, be down to moisture content 12% by counter-current cooler.
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| CN2013101646416A CN103277986A (en) | 2013-05-07 | 2013-05-07 | Low-consumption combined drying technique for residue materials |
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| CN2013101646416A CN103277986A (en) | 2013-05-07 | 2013-05-07 | Low-consumption combined drying technique for residue materials |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878793A (en) * | 2012-09-12 | 2013-01-16 | 四川南充首创科技开发有限公司 | Assistant biomass heat source for solar drier and intelligent regulation and control device |
| CN104713343A (en) * | 2015-04-01 | 2015-06-17 | 云南楚雄优豪太阳能科技有限公司 | Storage and drying integrated solar energy hot air drying device |
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| RU2270966C2 (en) * | 2004-04-07 | 2006-02-27 | НИУ "Институт теоретической и прикладной механики" СО РАН (НИУ ИТПМ СО РАН) | Mode of drying materials and arrangement for its execution |
| CN2809539Y (en) * | 2005-06-22 | 2006-08-23 | 张莲 | Fluidized bed drying machine with enhanced heat exchange |
| CN201318859Y (en) * | 2008-11-13 | 2009-09-30 | 广东达诚机械有限公司 | Drying device for silicon oil coating layers |
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| 汤石生等: "糟渣类物料低能耗组合干燥工艺与设备探讨", 《农机农艺》, no. 2, 30 April 2013 (2013-04-30), pages 52 - 54 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878793A (en) * | 2012-09-12 | 2013-01-16 | 四川南充首创科技开发有限公司 | Assistant biomass heat source for solar drier and intelligent regulation and control device |
| CN102878793B (en) * | 2012-09-12 | 2014-09-24 | 四川南充首创科技开发有限公司 | Assistant biomass heat source for solar drier and intelligent regulation and control device |
| CN104713343A (en) * | 2015-04-01 | 2015-06-17 | 云南楚雄优豪太阳能科技有限公司 | Storage and drying integrated solar energy hot air drying device |
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Application publication date: 20130904 |