CN2886472Y - Dehydrating drying device for grain - Google Patents

Abstract

A primitive dehydration and torrefaction apparatus for grain is disclosed, comprising a grain storage, a grain discharge storage, and a plurality of machine bodies and the corresponding control devices which are assembled in the grain storage and the grain delivery storage, wherein a wind-guiding long-ridged polygonal baseless case and a tempering dehydration cavity are aligned in a cross fashion in different altitudes of the machine body, and form a step-by-step heat-control drying tempering dehydration section and a cooling tempering dehydration section by at least one machine body. The baseless case in the machine body employs a heat insulation double wall or a heat dissipation single wall configuration, and the wind-guiding inlets disposed on the two sides of the baseless case are communicated with a hot air intake, a wet venting hood and a cold air separator respectively. Rows of the baseless cases in a machine body are in different altitudes with the rows in the neighboring machine body. The primitive dehydration and torrefaction apparatus effectively overcomes the problems lying in the prior art, such as poor grain quality after torrefaction, injured grain above-norm or the like. Further, the apparatus is reasonable in the dehydration process flow, easy to operate, high in control precision, low in investment and operation cost, energy-saving, great in the precipitation magnitude for one time, uniform in dehydration, high in yield and prone to maintain the natural quality of grain after torrefaction, thereby maintaining a color as bright as that after natural sunned.

Description

Raw state grain drying apparatus

Technical field

The utility model relates to a kind of heating power stoving process of grain, particularly a kind of raw state grain drying apparatus that utilizes the wet inertia of heat for power, mainly be applicable to dehydrating of corn, also be applicable to dehydrating of grains such as seed grain, paddy rice, wheat, rapeseed, Chinese sorghum and soybean.

Background technology

Along with the develop rapidly of China's science and technology, the output of agricultural system grain is doubled year by year, and the grain new varieties continue to bring out, and grain moisture content is also improving year by year.Therefore, for making grain Gui Cang, must strengthen dry precipitation dynamics, just can reach the purpose of safe storage the grain of firm results.With the Northeast's corn is example, and general moisture content is 25～28%, sometimes up to 28～35%.Because the high-moisture corn high humidity, not airing can't long term storage, can not safekeeping, so cause easily sell grain difficulty, purchase difficult, store difficult problem.Corn is a kind of difficult dry grain; the ecosystem characteristic of corn is that high-moisture, seed volume are big; the colloid cortex is thick, content of starch is many, pericarp structure is very fine and close and smooth; therefore; can reach the storage of protecting seed moisture content, the purpose that prevents its water loss, but this has but played inhibition for the heating power drying dewatering.The epidermis at maize germ position is thin and fragile, and under incorrect drying condition, colloid cortex and the cell tissue of being close to the pericarp aleurone thereof become very intensive, the water vapour of seed inside almost can not see through, the water vapour that produces is gathering highly, and the colloid cortex will bulging, even explosion, be commonly called as quick-fried waist grain, explosion the colloid cortex, DE complete obiteration, body death, aging speed is exceedingly fast, and causes the decline of corn ecosystem quality.If handle untimelyly during storage, meet environment temperature and raise and very easily go mouldy.Be not good at damnous corn up to 500～1,000 ten thousand ton owing to dealing with improperly and taking care of every year.Therefore, the corn of new results must carry out the standard that the drying and dehydrating processing just can reach safe storage.

At present, the grain drying of China dehydration is main means with the dry precipitation of heating power still, but still has greatly high moisture grain still live at the mercy of the elements to carry out artificial airing dehydration.Artificial airing takies artificial many, and the expense of removing down is big; Employing machinery teds, the percentage of damage height; Meeting and overcast and rainyly just can't carry out, is the dewatering that falls behind.For solving the dry problem of high moisture grain, all kinds of middle-size and small-size grain driers also just arise at the historic moment.Yet all there is very big-difference in this type of drying equipment at aspects such as stoving process, dries quantity, equipment performance, automatization level, service life, production costs.The drying equipment baking back state grain quality that has descends, and causes burnt grain, sticks with paste a severe overweight such as grain, heat damaged kernel, percentage of damage, and the grain grade descends, and also influences the productivity ratio of the flour extraction and the alcohol of starch.This grain of outlet even meeting be caused serious economy loss by the claim of returning goods.Though the drying equipment that has can be realized the purpose of grain precipitation, dry is inhomogeneous, and grain quality is relatively poor, and energy consumption is higher, heat energy does not make full use of, and operating cost is high.

At present, the tower grain drier of heating power that the home and abroad is more general, kind is more, mainly contains but divide with the flow direction of grain by its structure and thermal medium (hot blast etc.): (a) cross-flow type; (b) mixed-flow; (c) adverse current or downflow type; (d) combined type; (e) circulating or the like.

The existing external grain drier of introducing exists influences the defective that it is applied: one all is that the mode with heating power " direct baking " realizes its precipitation purpose, in various degree influence grain baking back quality; Generally all account for the main-process stream time its two heat time heating time more than 75%, it is about 12% that the time of tempering but only accounts for the main-process stream time, is pure in heat is dried by the fire, baked, the mode of ironing realizes grain dry precipitation; Its three mixed-flow structure that possesses crossing current, adverse current and following current technology, the layer upon layer of from top to down horn shape box that is covered with is the maximum a kind of type of steel consumption in the machine.Because the horn shape spacing is less, the bed of material is thinner; grain is to its lateral pressure in the long-play process; cause horn shape box straight flange position distortion modification; wave degree is serious, and often stops up, and every first quarter moon will be shut down cleaning once; grain advances behind the machine just along the horn shape box friction contact of the high heat radiation of 130～150 ℃ of high temperature and is close to the horn shape box to flow; baking through 4～7 hours, the DE of colloid cortex completely loses, and Jiao sticks with paste grain, heat damaged kernel is seriously extraordinary.The drying equipment that possesses concurrent-countercurrent formula technology is provided with three layers of bringing-up section in the machine, the ventilation joint of several anistree shape funnels, welding capacity is big when manufacturing, and the part difficulty is changed in maintenance, and the hot blast temperature that uses is too high, the thing of sticking with paste grain happens occasionally, and unsafe factor is many, is the product that the utmost point is treated the raising type.The graceful cross-flow type dryer of the Bake dryer of U.S.'s import and U.S.'s Z Gadamer, its transverse groove column connects from top to bottom, flanging part along the transverse groove column, the impenetrable work of thermal medium dead band just, the mixed flow tower is by half horn shape box of two ends idol wall, mostly be the dead band that can not ventilate, grain S type within it falls, and can produce moisture inequality, underproof " half-cooked " grain.They are four years old, detect control just equipment open, stop chain, or the warning of ultra-high temperature and hot-blast stove stop, open control, online at random moisture detector also can only be that the large time delay that dries by the fire back grain moisture is detected, both made and found that moisture was defective, removed adjusting process again, also very late, at least will influence 2 hours defective work, therefore existing detection system can not solve the problem that large time delay shifts to an earlier date preliminary treatment control in the drying course.

Equally also there are the problems referred to above in domestic drying equipment and the process control.According to the Chinese patent literature report, the patent No. is 98248825.4 " a kind of concurrent-countercurrent grain drier ", more typical exactly batch of cyclic drying equipment.It adopts the staggered air intake heating of multistage drying baker, when making damp grain by drying box by concurrent drying, adverse current cooling, a collection of grain to go round and begin again at the machine inner drying, reach safe moisture and just discharge in the slave.Its operating cost is uneconomical, can increase the percentage of damage probability, reduces grain product grade.Because structural design is unreasonable, the hot air flow in each dryer section, flow velocity, resistance coefficient are all different, so drying effect is also different, influences it and apply.The utility model person once disclosed in the grain drying processing procedure in the patent No. is the patent of " 92235725.0 ", " 93228397.7 ", " 94228446.1 ", " 95231223.9 ", technologies such as the bringing-up section that device therefor employing preheating section and cooling section and circulation thereof are provided with, delay section, received effect preferably, shown it is feasible through practical application.The patent No. be 00209049.X's " Grain Composite Technology Drier ", adopted the structure of applying mechanically air compartment in the air compartment, the existing concurrent drying section of staggered hothouse, tempering commutation exchange section has mixed flow drying section, delay section again.But dry used hot-air inlet pipe is an angular tube, and is in upright arrangement stacked from top to down, and promptly the angular tube of each layer lists same, grain flows downward along a straight channel, and tempering commutation section performs practically no function, and therefore a precipitation range is less, only be 4～5%, and precipitation is inhomogeneous.High-moisture grain more than 35% needs drying just can drop to safe moisture 4 times, and this is the expense height not only, and also still there is " half-cooked " grain in baking back grain.And for example the solid food ginseng is converted wet grain stoving process method, though can reach 20% by a precipitation range, it is no practical significance that solid food is dried again, only can make the increase of grain quality decline, expense, it is feasible as scientific research, there is no promotional value in actual applications.

Show according to domestic statistics: an above-mentioned import equipment and home equipment precipitation range in application only is 10～12%, and general raw grain moisture content is up to more than 35%, once just drop in 13.5～14.5% the safe water separated time, all seems very difficult.Twice oven dry of the needs that have will be paid operating cost twice, and administrative expenses such as personnel's wage, equipment depreciation are added in twice energy resource consumption, handle 1 ton of wet grain and generally will pay 43～57 yuans/T at least.And twice oven dry to the grain quality influence greatly exists the problem of degradation, and the grain of degradation is sold less than good price, generally reduces a grade grain per ton and will reduce by 10 yuan income.If a drying plant of producing 30000 ton-grain per year will increase by 300,000 yuan economic loss in 1 year, number is surprising.

The utility model content

The purpose of this utility model provides a kind of raw state grain drying apparatus, the precipitation range that it effectively overcomes the prior art existence is little, energy consumption is high, operating cost is high, baking back grain poor quality, heat damaged kernel, Cauterize stick with paste grain and half-cooked grain exceeds standard, problem such as stick with paste grain and catch fire, it is reasonable to have dehydration process, processing ease, the control accuracy height, reduced investment, energy-conservation, operating cost is low, one time precipitation range is big, and dehydration evenly keeps the ecosystem quality of baking back grain, bright in colour as natural drying, the output advantages of higher.

The purpose of this utility model is achieved in that this device comprises grain storage storehouse, top, bottom row silo and assembling therebetween have a polygonal box respectively save body and control device thereof, its technical essential is: described every joint body is by exterior panel, inside panel and the insulation material of laying therebetween constitute, described polygonal box adopts the box of the polygonal no end of heat insulation long ridge of heat insulation double wall structure or the long ridge of the heat radiation box of the polygonal no end of heat radiation single-wall structure, on having in the body, cross-staggered heat insulation long ridge box of the polygonal no end or the long ridge of heat radiation box of the polygonal no end reach the tempering dehydration chamber that communicates with manhole down, and be assembled into step by step control heat oven dry tempering dehydration portion and cooling tempering dehydration portion by the described body of at least one joint, row adopts heat insulation long ridge box of the polygonal no end in the body of each control heat oven dry tempering dehydration portion, box two ends air guide hole utilizes ventilating duct to communicate with the temperature control hot-wind inlet respectively, following row adopts the long ridge of heat radiation box of the polygonal no end, box two ends air guide hole respectively with stretch out extra-organismal hydrofuge cover and communicate, in the cooling tempering dehydration portion, following row all adopts the long ridge of heat radiation box of the polygonal no end, box two ends air guide hole communicates with extra-organismal cold wind air devider respectively, the box of the polygonal no end of long ridge of the row of going up distributes with the interior row's of going up of the body that is adjacent box stagger arrangement of the polygonal no end of long ridge in every joint body, and following row's box of the polygonal no end of long ridge distributes with the interior row's down of the body that is adjacent box stagger arrangement of the polygonal no end of long ridge.

The cross section of described long ridge box of the polygonal no end is that top is triangular in shape, and the bottom is rectangle or the cavity body of square structure.

Described bottom row's silo is fixed on the support, and row's grain mouth place is provided with amplitude modulation row grain machine at the bottom of the storehouse.

The described ventilating duct that communicates with the temperature control hot-wind inlet adopts encircling type bilateral air channel or midsplit type bilateral air channel.

Because adopting, the utility model has upper and lower cross-staggered wind-guiding with the dewater body in chamber of heat insulation or heat radiation long ridge box of the polygonal no end and tempering, form oven dry tempering dehydration portion of control heat step by step and cooling tempering dehydration portion respectively, so the overall structure coupling rationally, reduced investment, processing ease, the control accuracy height, can dehydrate needed temperature conditions of stage in difference according to grain, carry corresponding temperature control hot blast by different air channels, reasonably dispose hot blast, can realize utilizing the wet inertia of heat to dehydrate technological process for the science of power.The hear rate of grain drying reduces with the raising of hot blast temperature, but blindly pursuing high hot blast temperature reduces the destruction that hear rate can be brought grain quality again, therefore, the utility model both can be according to the characteristic rule of institute's grain storage food (as corn) precipitation, the specific environment that adapts with its precipitation rule is set, make it under optimum process condition, the long ridge of special type box of the polygonal no end by reasonable distribution, at the continuous changing location naturally and understandably of grain, in the balanced process that flows downward, make hot blast in good time, moderately enter in the body, penetrate the grain layer, carry out stronger heat with high moisture grain, wet exchange, discharge waste vapour from the hydrofuge cover, and take away a large amount of surperficial free waters.Meanwhile, the grain nature that temperature raises, balanced flowing downward enter the tempering dehydration chamber of body, carry out the tempering dehydration.Its reason just is that grain extexine and interior deep layer exist very big thermograde, the difference of the gradation of moisture, in the time of in the tempering dehydration chamber of the non-thermal treatment zone of the former body of flowing through, poor with grain internal and external temperature gradient difference, the gradation of moisture, mutual heat, wet inertia are power, carry out deep heat, wet balance exercise.Water is the most active polar substances; as long as there is the phenomenon of heat to exist; the motion phenomenon that just has hydrone exists; grain after being heated is under the exciting of its potential power potential energy; the water evaporates of the internal layer depths still Showed Very Brisk of moving, constantly with the form of molecule along capillary slowly to external transfer, and gather on the top layer; form new surperficial free water, a kind of special " Saunas " hydrofuge effect occurs.After oven dry tempering dehydration portion of control heat step by step and the processing of cooling tempering dehydration portion, through repeated drying, hydrofuge-tempering dehydration-oven dry again, hydrofuge-tempering dehydration again, the oven dry that repeatedly moves in circles, hydrofuge, dehydration, just can reach in the desired standard water separated time, effectively guaranteed quality after the baking of grain, the DE of epidermis does not weaken, the phenomenon existence that does not more have heat damaged kernel, sticks with paste grain, snuff grain and half-cooked grain and stick with paste grain.Because the utility model is to utilize heat to be used to power to excite the interior water of grain to be surperficial free water, utilize the potential potential energy of two kinds of gradient difference of heat and water to be power, water moves outward in exciting, and moisture is evenly to deviate from the surface slowly, so heat dissipation is few, save the energy, operating cost is low.Therefore, it is big that this device has a precipitation range, and dehydration evenly keeps the ecosystem quality of baking back grain, and is bright in colour as natural drying, the output advantages of higher.Actual detected shows that it is compared with similar mixed flow drying equipment, can save steel consumption more than 33%, saves the energy more than 30%, improves the starch flour extraction more than 6～8%, improves precipitation range more than 8%.Compare with existing concurrent-countercurrent formula drying equipment, can save steel more than 15%, save the energy more than 8%, save man-hour more than 20%, improve a precipitation range more than 6～8%, the starch flour extraction significantly improves more than 6～8%.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further described.

Fig. 1 is a kind of concrete structure schematic diagram of the present utility model.

Fig. 2 is a kind of structural representation of encircling type side ventilating duct single-unit body of the present utility model.

Fig. 3 is the cutaway view of Fig. 2 along the A-A line.

Fig. 4 is a kind of structural representation of row's silo.

Fig. 5 is a kind of structural representation of delivery plate.

Fig. 6 is a kind of structural representation of ventilating duct single-unit body in the double-division type of the present utility model.

Fig. 7 is the cutaway view of Fig. 6 along the B-B line.

Each sequence number explanation among the figure: 1 high heat is dried tempering dehydration portion, heat oven dry tempering dehydration portion in 2,3 low-heat oven dry tempering dehydration portion, 4 cooling tempering dehydration portions, 5 row's silos, 6 high-temperature hot-airs inlet, warm wind inlet in 7,8 low temperature hot-wind inlets, 9 supports, 10 mouths of putting out cereal, 11 amplitude modulations row grain machine, 12 cold wind air deviders, 13 online at random moisture detectors, 14 humidity sensors, 15 manholes, 16 hydrofuge covers, the long ridge of 17 heat radiations box of the polygonal no end, 18 heat insulation long ridge boxes of the polygonal no end, 19 grain storage storehouses, 20 grain inlets, 21 hot blast side ventilating ducts, 22 wind guide chambers, 23 box framves, 24, reinforcement, 25 air inlets, 26 ring flanges, 27 bodies, 28 inside panels, 29 jiaos of box end envelope walls, 30 driving wheels, 31 swing arms, 32 rollers, 33 delivery plates, 34 row's grain mouths, 35 pull bars, 36 outlets, ventilating duct in 37 hot blasts.

The specific embodiment

Describe the concrete structure of the present utility model and the course of work in detail according to Fig. 1-7.This device adopts fabricated structure, comprises grain storage storehouse, top 19, bottom row's silo 5 and the assembling control device that respectively saves body 27 and be made up of conventional heating plant, checkout gear and control circuit etc. that has polygonal box therebetween.Wherein conventional heating plant comprises common apparatus such as hot-blast pipe line, heat exchanger, hot-blast stove, air is heated the temperature of setting through hot-blast stove, heat exchanger, high, medium and low warm wind inlet 6,7,8 through the temperature control hot-wind inlet under the effect of air-heater enters body 27, with provide high-temperature hot-air, in warm wind and low temperature hot blast, finish drying to grain.Checkout gear comprises high and low two level detectors of the automatic control material loading that is arranged on grain storage storehouse, top 19 that general grain drier is commonly used, sends signal by bit switch, controls the operation of charging equipment automatically, makes and remains enough grain in the grain storage storehouse 19.Be arranged on that air inlet 25 carries out temperature controller that wind-warm syndrome detects, is arranged on online at random moisture detector 13 in the body 27, humidity sensor 14, hydrone intake device etc., can shift to an earlier date preliminary treatment by it, problems such as solution or minimizing grain drying process large time delay, the temperature of autobalance hot-blast stove, thus make the hot blast temperature equalization stable.

Between grain storage storehouse 19, top and bottom row's silo 5, utilize the more piece body 27 of ring flange 26 assemblings, adopt drying equipment exterior panel, inside panel and laying commonly used insulation material therebetween to constitute.Polygonal box in the body 27 adopts the box of the polygonal no end of heat insulation long ridge 18 of heat insulation double wall (fill insulant material between the inside and outside wall) structure or the long ridge of the heat radiation box of the polygonal no end 17 of heat radiation single-wall structure, the tempering dehydration chamber that upper and lower cross-staggered heat insulation long ridge box of the polygonal no end 18 or the long ridge of heat radiation box of the polygonal no end 17 is set in every joint body 27 and communicates with manhole 15.

This device adopts segmented heat supply oven dry, dewatering operation.The heat of control step by step oven dry tempering dehydration portion and cooling tempering dehydration portion by the above-mentioned body 27 of at least one joint is assembled into should dehydrate needed temperature conditions of stage in difference according to grain, carry corresponding single-stage or multistage temperature control hot blast.Present embodiment is for reasonably disposing hot blast, and the high heat that adopts two joint bodies 27 to be assembled into three grades of difference temperature controls is respectively dried tempering dehydration portion 1, middle heat is dried tempering dehydration portion 2, low-heat oven dry tempering dehydration portion 3 and two-stage cooling tempering dehydration portion 4.For allowing hot blast in good time, moderately enter body 27, dry in the body 27 of tempering dehydration portion in each high, medium and low control heat, last row adopts heat insulation long ridge box of the polygonal no end 18, as heat insulation wind-guiding baker, eliminate the uneven phenomenon of being heated to the greatest extent to greatest extent, guarantee baking back grain quality.And make box two ends air guide hole utilize respectively ventilating duct and high-temperature hot-air inlet 6, in warm wind inlet 7, low temperature hot-wind inlet 8 communicate, to adapt to grain, carry the hot blast of different temperatures in the different requirements in dry each stage.Can adopt encircling type bilateral air channel (shown in Fig. 2,3) with high, medium and low warm wind inlet 6,7,8 ventilating ducts that communicate, hot blast enters from air inlet 25, is entered in the cavity of box by heat insulation long ridge box of the polygonal no end 18 two ends air guide holes respectively along the wind guide chamber 22 of hot blast side ventilating duct 21.Midsplit type bilateral air channel (shown in Fig. 6,7), hot blast enters from air inlet 25, is entered in the cavity of box by heat insulation long ridge box of the polygonal no end 18 two ends air guide holes respectively along ventilating duct in the hot blast 37.Can make the hot-blast pressure equalization like this, the flow velocity equalization, grain falling speed equalization has effectively been controlled the uneven problem of dehydration.Hot blast is by penetrating the grain layer in the hole that is produced in grain flows downward process, and carry out stronger heat, wet exchange, rising grain temperature and at tempering dehydration chamber eliminating high humidity waste gas outside body 27.The temperature of above-mentioned high temperature, middle temperature, three temperature provinces of low temperature roughly is divided into: 165～185 ℃ of high-temperature regions; 135～165 ℃ of middle warm areas; Low-temperature space: 85～135 ℃.How much quantity of wherein controlling the hot specification of drying tempering dehydration portion and cooling off tempering dehydration portion, setting reaches specification, the quantity that respectively saves body 27, can according to user's actual needs, the size of oven dry amount and how much suitably increasing or reduce of precipitation range.

In the body 27 of each control heat oven dry tempering dehydration portion, following row adopts the long ridge of heat radiation box of the polygonal no end 17 conducts wind-guiding wet exhausters that dispel the heat, and make box two ends air guide hole respectively with stretch out body 27 outside hydrofuge cover 16 communicate.All adopt the long ridge of upper and lower cross-staggered heat radiation box of the polygonal no end 17 in cooling tempering dehydration portion 4 bodies 27, box two ends air guide hole communicates with body 27 cold wind air devider 12 outward respectively.Cooling tempering dehydration is a kind of cooling campaign that intensification grain returns to the normal temperature state, and gets rid of back-page residual moisture.For guaranteeing grain constantly changing location, balanced flowing downward naturally and understandably, the structure of half boxlike (as shown in Figure 1 and Figure 2) stagger arrangement distribution is inserted in box of the polygonal no end of heat insulation long ridge 18 employings of the row of going up in box of upward arranging in every joint body 27 of the polygonal no end of heat insulation long ridge 18 and the body 27 that is adjacent respectively at these row two ends, the long ridge of the heat radiation boxes of arranging down in every joint body 27 of the polygonal no end 17 also adopt the structure of inserting half boxlike stagger arrangement distribution at these row two ends respectively with the body that is adjacent 27 interior row's boxes of the polygonal no end of heat insulation long ridge 17 down.Make the spacing equalization of box, do not have and dredge and overstocked phenomenon, bilateral vertical, therefore there is not the dead angle, can not cause local grain to pile up, can not produce local grain flow velocity yet and fall, therefore reduced the phenomenon of moisture inequality.It is triangular in shape that the cross section of above-mentioned each box of the polygonal no end of long ridge is top, and the bottom is rectangle or the cavity body of square structure, is provided with in box sidewall bottom to prevent the reinforcement 24 that is out of shape.The inside panel 28 of polygonal box of the long ridge of half boxlike and body 27 is affixed, and the polygonal box of the whole long ridge of boxlike adopts detachable to connect, and two ends are fixing by the box frame 23 or 29 assemblings of angle box end envelope wall that are fixed on the body 27 respectively.Box outer surfac has standard grain down direction, alleviation impact velocity, decomposes the function and the effect of gravitational load; Its internal cavity has heat (cold) medium disappear function and effects such as moving to resting, pressure accumulation, distribution, conveying, is the passage of the hot and cold media flow direction of standard, pressure accumulation and water conservancy diversion.

Be control row's grain effect better, silo 5 arranged in the bottom be fixed on the support 9 that mouthful 10 places that put out cereal are provided with amplitude modulation row grain machine 11 at the bottom of the storehouse.This machine is made up of driving wheel 30, the delivery plate 33 that is assembled in swing arm 31 on the eccentric wheel, pull bar 35, band roller 32 and tensioning apparatus etc.It mainly is the control time of staying of grain in this device, control row grain speed.Its delivery plate 33 is provided with a plurality of outlets 36, is the outlet of food supply food overflow.When stopping, a row of delivery plate 33 positive alignments grain mouth 34, the grain in the machine just can not outflow.When delivery plate 33 is made horizontal reciprocating movement, delivery plate 33 and row's grain mouth 34 mutual dislocation, grain just flows out from the gap of delivery plate 33 outlets 36.The operation amplitude of delivery plate 33 is by the eccentric wheel adjustment, and the gap of delivery plate 33 and row's grain mouth 34 is by the tensioning apparatus adjustment.Drive unit adopts frequency control motor, also can adopt six impellers row grain.

This device also can adopt the program software design of automatic control, i.e. quantitative change according to temperature, humidity, moisture and the time of high moisture grain in dry run concerns, adopt general PLC Programmable Logic Controller, the Mathematical Modeling that utilization ladder type language is set up, by to the collection of signal, handle, read, amplify and the automated programming computing, regulate the technological process of whole device automatically.

When this device used, air was heated to the temperature of setting through hot-blast stove, heat exchanger, enters body 27 corresponding temperature control hot-wind inlets under the effect of air-heater respectively.Wet grain enters grain storage storehouse 19 from grain inlet 20, arrange under effective control of grain machine 11 at amplitude modulation by gravity, the self-transposition that grain carries out natural transformation orientation, angle, omnidirectional drop point in body 27 at each joint slowly, flow downward uniformly, finish the concurrent drying technological process, grain flows from top to bottom, and its flow velocity is fast more, and the porosity of formation is big more, the hot blast resistance is more little, and the waste gas humidity of discharge is big more.Through the oven dry of multistage control heat, tempering dehydration, cooling tempering dehydration, the row's of discharge silo 5 is finished the drying to grain at last.In addition, the insulation processing has all been carried out at the position that is prone to heat loss that body 27, hot-blast pipe line, radiator, hot-blast stove etc. contact with atmosphere, therefore can reduce heat loss to greatest extent.

Claims (4)

1, a kind of raw state grain drying apparatus, comprise grain storage storehouse, top, bottom row silo and the assembling wind-guiding that has therebetween respectively saves body and control device thereof with polygonal box, it is characterized in that: described every joint body is by exterior panel, inside panel and the insulation material of laying therebetween constitute, described polygonal box adopts the box of the polygonal no end of heat insulation long ridge of heat insulation double wall structure or the long ridge of the heat radiation box of the polygonal no end of heat radiation single-wall structure, on in the body, the tempering dehydration chamber that following cross is staggered heat insulation long ridge box of the polygonal no end or dispels the heat long ridge box of the polygonal no end and communicate with manhole, and be assembled into step by step control heat oven dry tempering dehydration portion and cooling tempering dehydration portion by the described body of at least one joint, row adopts heat insulation long ridge box of the polygonal no end in the body of each control heat oven dry tempering dehydration portion, box two ends air guide hole utilizes ventilating duct to communicate with the temperature control hot-wind inlet respectively, following row adopts the long ridge of heat radiation box of the polygonal no end, box two ends air guide hole respectively with stretch out extra-organismal hydrofuge cover and communicate, in the cooling tempering dehydration portion, following row all adopts the long ridge of heat radiation box of the polygonal no end, box two ends air guide hole communicates with extra-organismal cold wind air devider respectively, the box of the polygonal no end of long ridge of the row of going up distributes with the interior row's of going up of the body that is adjacent box stagger arrangement of the polygonal no end of long ridge in every joint body, and following row's box of the polygonal no end of long ridge distributes with the interior row's down of the body that is adjacent box stagger arrangement of the polygonal no end of long ridge.

2, raw state grain drying apparatus according to claim 1 is characterized in that: the cross section of described long ridge box of the polygonal no end is that top is triangular in shape, and the bottom is rectangle or the cavity body of square structure.

3, raw state grain drying apparatus according to claim 1 is characterized in that: described bottom row's silo is fixed on the support, and row's grain mouth place is provided with the amplitude modulation delivery plate at the bottom of the storehouse.

4, raw state grain drying apparatus according to claim 1 is characterized in that: the described ventilating duct that communicates with the temperature control hot-wind inlet adopts encircling type bilateral air channel or midsplit type bilateral air channel.

Images