CN103070232A - Low-temperature circulation dryer for crop seeds - Google Patents

Low-temperature circulation dryer for crop seeds Download PDF

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Publication number
CN103070232A
CN103070232A CN2013100272410A CN201310027241A CN103070232A CN 103070232 A CN103070232 A CN 103070232A CN 2013100272410 A CN2013100272410 A CN 2013100272410A CN 201310027241 A CN201310027241 A CN 201310027241A CN 103070232 A CN103070232 A CN 103070232A
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grain
angle box
flow inlet
air
drying machine
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CN2013100272410A
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Chinese (zh)
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CN103070232B (en
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李长友
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华南农业大学
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Abstract

The invention discloses a low-temperature circulation dryer for crop seeds, which comprises a dryer body, a hoister, a draught fan, a hot-blast furnace, a heat exchanger, small air inflow angle boxes, air exhaust angle boxes, air inflow angle boxes, a grain discharge device, a delivery machine under the dryer and a grain-moisture and drying-temperature on-line detector. The low-temperature circulation dryer solves the problems of uneven material drying, higher energy consumption, a low annual utilization rate and the like in the prior art effectively, and has the characteristics of simple structure, simplicity in operation, high applicability, high-quality, efficient, safe and energy-saving low-temperature quick drying and the like.

Description

A kind of crop seed low-temperature circulating drying machine

Technical field

The present invention relates to the grain drying equipment technology, is to adopt air inducing mode specifically, improves the rate of drying of grain and a kind of crop seed low-temperature circulating drying machine that the grain drying temperature is reduced.

Background technology

After the crop seed results in time drying be to ensure its germination percentage, germinating energy, prevent the key that germplasm is deteriorated, traditionally, both economical and practical method is aeration-drying, for 41 ℃ of dry crop seed temperature hereinafter referred to as low temperature drying.

On the mode of aeration-drying, nothing more than being two kinds of forms of air blast and air inducing.The greatest problem that the air blast mode exists is that the drying medium in the drying layer is in barotropic state.Positive draft, drying medium is when its pressure raises, inevitable its relative humidity that increases synchronously, virtually reduced the ability that drying medium (hot blast) is admitted moisture, in drying process not at that time, the air intake dry materials often occurs and the phenomenon of exhaust end moisture absorption, not only uneven drying is even but also baking temperature is relatively high and rate of drying is lower; The induced air negative-pressure drying can avoid the exhaust end material by the phenomenon of moisture absorption effectively, but on technology realizes, the air intake of existing drying equipment and outlet air end can not be configured in adjacent same position, and realize dry by the cross-current drying mode, exist the air intake baking temperature far above outlet air end, not only have so larger thermograde in the drying layer, cause dry materials uneven, pressure loss when drying medium passes through drying layer simultaneously is very large, and energy consumption is higher.Moreover all there is the problem of residual seed in the grain discharging section of existing drying machine, clear tower difficulty, and versatility is poor, causes the year utilization rate decrease of drying machine, and this also is one of key issue that realizes seeds mechanization dry technology penetration and promotion difficulty.

Summary of the invention

The object of the invention is to overcome the deficiency that above prior art exists, providing a kind of simple in structure, easy and simple to handle, applicability to reach by force can high-quality, efficient, safe, the energy-conservation quick-drying crop seed low-temperature circulating of low temperature drying machine.

In order to achieve the above object, the present invention is by the following technical solutions: a kind of crop seed low-temperature circulating drying machine comprises conveyer, grain moisture content and baking temperature on-line detector under drying machine body, elevator, air-introduced machine, hot-blast stove, heat exchanger, little flow inlet angle box, exhaust angle box, flow inlet angle box, delivery device, the machine; Wherein, the drying machine body is divided into, in, lower three sections, top is delay section, the middle part is dryer section, the bottom is grain discharging section, hoist installation is in the side of drying machine body, air-introduced machine is installed in the front of drying machine body, heat exchanger is set above the hot-blast stove, hot-blast stove and heat exchanger are arranged on the back side of drying machine body, air inlet duct and exhausting duct are located at the middle part of dryer section, and air inlet duct and exhausting duct are close together, the air inlet of air-introduced machine directly is connected with exhausting duct, the air inlet of air inlet duct directly is connected with the air outlet of heat exchanger, dryer section sets gradually the first transversely arranged little flow inlet angle box layer of some little flow inlet angle boxes from top to bottom, the first row air horn box layer that some exhausts angle box is transversely arranged, the flow inlet angle box layer that some flow inlet angle boxes are transversely arranged, the second row air horn box layer that some exhausts angle box is transversely arranged, the second little flow inlet angle box layer that some little flow inlet angle boxes are transversely arranged, flow inlet angle box and exhaust angle box are Heterogeneous Permutation up and down, little flow inlet angle box is connected an end and all is connected with the drying machine body with the flow inlet angle box, the other end of little flow inlet angle box and flow inlet angle box all is connected with air inlet duct, exhaust angle box one end is connected with the drying machine body, the exhaust angle box other end be connected with exhausting duct, be provided with delivery device in the grain discharging section, the delivery device below is provided with conveyer under the machine, conveyer is connected with elevator under the machine, between grain discharging section and the lower conveyer grain moisture content and baking temperature on-line detector is set.

For the ease of advancing grain and row's grain, described drying machine bodies top is provided with second-rate valve.

In order to make grain drying even, the bottom of described little flow inlet angle box and flow inlet angle box is open design, and two sides of flow inlet angle box are provided with air-vent.

For better exhaust, the cross section of described exhaust angle box is hexagonal structure, and two sides of exhaust angle box are provided with air-vent, and box two faces down in exhaust angle are provided with the ventilative net with mesh.

In order to prevent residual seed in the drying machine body, described delivery device comprises row's grain motor, grain discharging wheel and row's grain turnover panel; Wherein, row's grain driven by motor grain discharging wheel rotates row's grain, row's grain motor is controlled its velocity of rotation by grain moisture content and baking temperature on-line detector, row's grain turnover panel is located at the grain discharging wheel below, row's grain turnover panel two ends are connected with the drying machine body by bearing, the operating angle of row's grain turnover panel is stepless adjustment, and row's grain turnover panel is that stepless adjustment is connected with grain discharging wheel.

Preferably, described drying machine body is square bar structure warehouse.

Realization principle of the present invention: a kind of crop seed low-temperature circulating drying machine comprises conveyer, grain moisture content and baking temperature on-line detector under drying machine body, elevator, air-introduced machine, hot-blast stove, heat exchanger, little flow inlet angle box, exhaust angle box, flow inlet angle box, delivery device, the machine; Wherein, the drying machine body is divided into, in, lower three sections, top is delay section, the middle part is dryer section, the bottom is grain discharging section, hoist installation is in the side of drying machine body, air-introduced machine is installed in the front of drying machine body, heat exchanger is set above the hot-blast stove, hot-blast stove and heat exchanger are arranged on the back side of drying machine body, air inlet duct and exhausting duct are located at the middle part of dryer section, and air inlet duct and exhausting duct are close together, the air inlet of air-introduced machine directly is connected with exhausting duct, the air inlet of air inlet duct directly is connected with the air outlet of heat exchanger, dryer section sets gradually the first transversely arranged little flow inlet angle box layer of some little flow inlet angle boxes from top to bottom, the first row air horn box layer that some exhausts angle box is transversely arranged, the flow inlet angle box layer that some flow inlet angle boxes are transversely arranged, the second row air horn box layer that some exhausts angle box is transversely arranged, the second little flow inlet angle box layer that some little flow inlet angle boxes are transversely arranged, flow inlet angle box and exhaust angle box are Heterogeneous Permutation up and down, little flow inlet angle box is connected an end and all is connected with the drying machine body with the flow inlet angle box, the other end of little flow inlet angle box and flow inlet angle box all is connected with air inlet duct, exhaust angle box one end is connected with the drying machine body, the exhaust angle box other end be connected with exhausting duct, be provided with delivery device in the grain discharging section, the delivery device below is provided with conveyer under the machine, conveyer is connected with elevator under the machine, between grain discharging section and the lower conveyer grain moisture content and baking temperature on-line detector are set, delivery device comprises row's grain motor, grain discharging wheel and row's grain turnover panel; Wherein, row's grain driven by motor grain discharging wheel rotates row's grain, row's grain motor is controlled its velocity of rotation by grain moisture content and baking temperature on-line detector, row's grain turnover panel is located at the grain discharging wheel below, row's grain turnover panel two ends are connected with the drying machine body by bearing, the operating angle of row's grain turnover panel is stepless adjustment, and row's grain turnover panel is that stepless adjustment is connected with grain discharging wheel.

Seed falls into the drying machine body by the top that elevator rises to drying machine, after drying machine is filled, the row's of unlatching grain motor, drying machine bottom at this moment, just discharged dryer section by grain discharging wheel by the part seed that the holder of row's grain turnover panel is being held up, and drop into conveyer under the machine, by conveyer under the machine seed of discharging is sent back to elevator, risen to again the top of drying machine by elevator, realize the seed loop cycle.In the cyclic drying process, the intrinsic crop seed of drying machine (grain) flows downward continuously by deadweight, in the process that flows, realize tempering, drying, in the process flow process of dryer section, being subjected to up and down, the effect of the angle box of Heterogeneous Permutation constantly replaces and changes fluidised form, so that seed even wind-engaging on all directions, improved the uniformity of seed drying, reduced inner thermal stress and the moisture deviation stress that produces in the dry run, suppress the stress cracking of Interior Seed, ensured drying quality.In the dry run, the heat energy that fuel burns in hot-blast stove and produces, exchange to air through heat exchanger, form hot blast, i.e. drying medium, hot blast is under the attraction of air-introduced machine, by heat exchanger, air inlet duct flows into little flow inlet angle box and flow inlet angle box, from little flow inlet angle box and flow inlet angle box to around minute wind, enter exhaust angle box after passing the grain layer, be discharged to outside the machine through exhausting duct and air-introduced machine again.Air-introduced machine is in air inducing, must make the pressure of hot blast be lower than the atmospheric pressure of environment, and be to continue to reduce in passing through the process of drying layer, and the relative humidity of drying medium is relation in direct ratio with the variation of pressure in theory, the lasting reduction of pressure, the ability that then means drying medium admittance moisture is continuing to increase, the steam partial pressure that has increased between grain and drying medium is poor, thereby the speed of anhydrating of seed is accelerated, the temperature of self reduces, so just realized seed under the relatively low condition of self temperature, efficiently dry rapidly.

Seed drying in drying machine is hot blast contacts spontaneous moisture exchange with seed irreversible thermal procession, wherein has the multiple gesture such as temperature difference gesture, pressure reduction gesture, biochemistry.The temperature difference of hot blast and seed is larger, the heat exchange of the two is stronger, and hot blast and interseminal psychrometric difference are larger, then the speed of exchange of moisture is larger, based on this principle, the present invention adopts induced air negative-pressure dry, by reducing the pressure of drying medium, its relative humidity is reduced, drying capacity increases, and improves the speed of anhydrating of seed, and the raising of the speed of anhydrating, the temperature of seed is reduced and enhancing hot blast and interseminal heat transfer, so not only reduce the baking temperature of this type of heat sensitive material of seed, ensured quality, also accelerated rate of drying simultaneously, reduce energy consumption, improved drying efficiency.

There are 5 to 8 times the relation that increases progressively in flowing resistance in the drying layer and layer thickness increment, and namely along with the increase of layer thickness, flowing resistance can increase with 5 to 8 times increasing velocity.Based on this principle, the present invention has designed the mixed flowing mode that is divided wind by middle air intake to the both sides drying layer, this design is equivalent to the thickness of drying layer has been reduced half, and draught area has strengthened one times, simultaneously, utilize the top-down natural flow characteristic of seed, make the material bed rarefaction that is in all the time, greatly reduce dry flowing resistance, saved the ventilation energy consumption, improved productivity ratio and realized that the surface of the seed is heated evenly, prevented that larger thermograde from appearring in Interior Seed; The draining crop mechanism with automatic panel-turnover of design; both can realize stepless adjustment row flow vector; behind dry the end; can make things convenient for again; utilize rapidly the interior all grain of the emptying drying machine of natural flow of seed; protected the plumule position to avoid damage, adapted to the drying of various crop seeds, the versatility of drying machine is good.

The present invention has following advantage and effect with respect to prior art:

1, the present invention adopts and comprises conveyer, grain moisture content and baking temperature on-line detector under drying machine body, elevator, air-introduced machine, hot-blast stove, heat exchanger, little flow inlet angle box, exhaust angle box, flow inlet angle box, delivery device, the machine, be the induced air negative-pressure drying, kept seed under relatively low temperature high-quality, efficiently, dry quickly, also reduce drying energy consumption, also had the characteristics such as simple in structure, easy and simple to handle, that applicability is strong simultaneously.

2, the present invention has realized the mixed flow drying of circulation dryer, has reduced flowing resistance, has saved the energy consumption of ventilating.

3, the present invention below grain discharging wheel, designed can stepless-adjustment full employment angle row's grain turnover panel, can realize stepless row's grain and ensure seed in can the single voiding drying machine, solved the problem of residual seed in the drying machine.

4, the air inlet duct among the present invention and exhaust passage be all at the middle part of dryer section, and air inlet duct and exhausting duct be close together, and simplified air channel structure and prevented exposing of dried dust.

5, all parts among the present invention is all easily processed, cheap and result of use good.

Description of drawings

Fig. 1 is the front view of a kind of crop seed low-temperature circulating of the present invention drying machine;

Fig. 2 is the left view of a kind of crop seed low-temperature circulating of the present invention drying machine;

Fig. 3 is the delivery device structural representation in a kind of crop seed low-temperature circulating of the present invention drying machine;

Fig. 4 is the front view of the little flow inlet angle box in a kind of crop seed low-temperature circulating of the present invention drying machine;

Fig. 5 is the left view of the little flow inlet angle box in a kind of crop seed low-temperature circulating of the present invention drying machine;

Fig. 6 is the front view of the exhaust angle box in a kind of crop seed low-temperature circulating of the present invention drying machine;

Fig. 7 is the left view of the exhaust angle box in a kind of crop seed low-temperature circulating of the present invention drying machine;

Fig. 8 is the front view of the flow inlet angle box in a kind of crop seed low-temperature circulating of the present invention drying machine;

Fig. 9 is the left view of the flow inlet angle box in a kind of crop seed low-temperature circulating of the present invention drying machine;

Figure 10 is the front view in the air channel in a kind of crop seed low-temperature circulating of the present invention drying machine;

Figure 11 is the left view in the air channel in a kind of crop seed low-temperature circulating of the present invention drying machine.

Number in the figure and title are as follows:

1 The drying machine body 2 Elevator 3 Air-introduced machine 4 Hot-blast stove 5 Heat exchanger 6 Little flow inlet angle box 7 Exhaust angle box 8 The flow inlet angle box 9 Conveyer under the machine 10 Grain moisture content and baking temperature on-line detector 11 Delay section 12 Dryer section 13 Grain discharging section 14 Air inlet duct 15 Exhausting duct 16 Second-rate valve 17 Row's grain motor 18 Grain discharging wheel 19 Row's grain turnover panel ? ?

The specific embodiment

For ease of it will be appreciated by those skilled in the art that the present invention is described in further detail below in conjunction with drawings and Examples.

Embodiment:

Shown in Fig. 1 ~ 11, a kind of crop seed low-temperature circulating drying machine, according to grain transport flow direction, comprise the elevator 2, second-rate valve 16, the drying machine body 1 that set gradually, it is delay section 11, dryer section 12 and grain discharging section 13 by the flow process of going through that grain enters drying machine body 1, then after grain moisture content and 10 detections of baking temperature on-line detector, fall under the machine conveyer 9 and send elevator 2 back to again, the grain moisture content in the present embodiment and baking temperature on-line detector 10 can be buied in market.Elevator 2 is installed in the side of drying machine body 1, and air-introduced machine 3 is installed in the front of drying machine body 1, and the air inlet of air-introduced machine 3 directly is connected with exhausting duct 15, and hot-blast stove 4 and heat exchanger 5 designs are at the back side of drying machine body 1.The air inlet of air inlet duct 14 directly is connected with the air outlet of heat exchanger 5.The heat that hot-blast stove 4 burnings produce exchanges to drying medium (air) through heat exchanger 5, air forms hot blast under the graviational interaction of air-introduced machine 3, its flow direction is to enter little flow inlet angle box 6 and flow inlet angle box 8 after heat exchanger 5 flows through air inlet duct 14, enter exhaust angle box 7 after passing the grain layer, then flow into exhausting duct 15 by exhaust angle box 7, be discharged into outdoor by air-introduced machine 3 again.

As depicted in figs. 1 and 2, the basic structure of drying machine body 1 belongs to square bar structure warehouse, and the top of warehouse is delay section 11, and the middle part is dryer section 12, and the bottom is grain discharging section 13.Little flow inlet angle box 6, exhaust angle box 7, flow inlet angle box 8, air inlet duct 14 and exhausting duct 15 all design in dryer section 12, and 15 designs of air inlet duct 14 and exhausting duct in the centre position of dryer section 12, and air inlet duct 14 and exhausting duct 15 are close together.The arrangement mode of angle box is followed successively by the second transversely arranged little flow inlet angle box layer of the transversely arranged second row air horn box layer of the transversely arranged flow inlet angle box layer of the transversely arranged first row air horn box layer of the first transversely arranged little flow inlet angle box layer of some little flow inlet angle box 6, some exhausts angle box 7, some flow inlet angle boxes 8, some exhausts angle box 7, some little flow inlet angle boxes 6 from top to bottom, and flow inlet angle box 8 and exhaust angle box 7 are Heterogeneous Permutations up and down.Shown in Fig. 4,5,8 and 9, the bottom surface of little flow inlet angle box 6 and flow inlet angle box 8 is opened wide, and an end of little flow inlet angle box 6 and flow inlet angle box 7 is connected with drying machine body 1, and the other end is connected with air inlet duct 14 and communicates with air inlet duct 14; As shown in Figure 9, two lateral layout of flow inlet angle box 8 have air-vent, and shown in Fig. 6,7, the cross section of exhaust angle box 7 is hexagonal structures, and two lateral layout have air-vent, and two faces down are the ventilative nets with mesh; One end of exhaust angle box 7 is connected with drying machine body 1, and the other end is connected with exhausting duct 15 and communicates with exhausting duct 15, and exhausting duct 15 and air inlet duct 14 are close together, shown in Fig. 2,10 and 11; The air inlet of air-introduced machine 3 directly is connected with exhausting duct 15, and hot-blast stove 4 and heat exchanger 5 designs are at the back side of drying machine body 1, and the air inlet of air inlet duct 14 directly is connected with the air outlet of heat exchanger 5.

Shown in Fig. 2,3, grain discharging section 13 designs are below dryer section 12, row's grain motor 17, grain discharging wheel 18, row's grain turnover panel 19 all are installed in grain discharging section 13, grain discharging wheel 18 is connected with row's grain motor 17, drive grain discharging wheel 18 row's of rotation grains by row's grain motor 17, row's grain motor 17 is by grain moisture content and baking temperature on-line detector 10 its velocities of rotation of control.Grain moisture content and baking temperature on-line detector 10 are installed under grain discharging section 13 and the machine between the conveyer 9, as detecting through moisture content and the baking temperature of the later seed of dryer section 12 and controlling the speed that grain discharging wheel 18 rotates.Grain discharging wheel 18 is blade-carrying runners, and the slewing rate that changes grain discharging wheel 18 can be controlled the speed of dry interior grain circulation, the drying time when adjusting grain through dryer section 12; Row's grain turnover panel 19 be installed in grain discharging wheel 18 below, row's grain turnover panel 19 two ends respectively are set with a bearing and are installed on the drying machine body 1, the operating angle of row's grain turnover panel 19 is steplessly to adjust, row's grain turnover panel 19 cooperates the stepless adjustment that realizes drying machine row flow vector with grain discharging wheel 18, when grain moisture content and baking temperature on-line detector 10 detect seed in the drying machine and all reach target moisture, just finished the drying of this batch seed, at this moment, the operating angle of row's grain turnover panel 19 is adjusted to maximum position, can utilize the natural flow of seed, realize fast row's grain, owing to can utilize the natural flow row grain of seed, so can residual seed on the rear drying machine body 1 of row's grain end and the row's grain turnover panel 19.

During real work, first plugged, grain moisture content and baking temperature on-line detector 10 are finished the self check that resets, and show to treat duty.Set baking temperature, drying water subhead scale value, then press elevator 2 start buttons, seed then falls into drying machine body 1 by the top that elevator 2 rises to drying machine body 1, after drying machine body 1 filled, the row's of unlatching grain motor 17, drying machine body 1 bottom at this moment, just discharged dryer section 12 by grain discharging wheel 18 by the part seed that 19 holders of row's grain turnover panel are being held up, and drop into conveyer 9 under the machine, by conveyer under the machine 9 seed of discharging is sent back to elevator 2, risen to again the top of drying machine body 1 by elevator 2, realize the seed loop cycle.Crop seed (grain) in the drying machine body 1 is in the cyclic drying process, to flow downward continuously by deadweight, in the process that flows, realize tempering, drying, in the process flow process of dryer section 12, be subjected to the up and down continuous transposition of effect and the change fluidised form of the angle box of Heterogeneous Permutation, so that seed even wind-engaging on all directions, evenly dry, reduce inner thermal stress and the moisture deviation stress that produces in the dry run, suppressed the stress cracking of Interior Seed, ensured drying quality.In the cyclic drying process, the heat energy that fuel burns in hot-blast stove 4 and produces, exchange to air through heat exchanger 5, form hot blast, i.e. drying medium, hot blast is under the attraction of air-introduced machine 3, flow into little flow inlet angle box 6 and flow inlet angle box 8 by heat exchanger 5 through air inlet duct 14, from little flow inlet angle box 6 and flow inlet angle box 7 to around minute wind, enter exhaust angle box 7 after passing the grain layer, be discharged to outside the machine through exhausting duct 15 and air-introduced machine 3 again.Air-introduced machine 3 is in air inducing, must make the pressure of hot blast be lower than the atmospheric pressure of environment, and be to continue to reduce in the process of passing through dryer section 12, the relative humidity of drying medium is relation in direct ratio with the variation of pressure in theory, the lasting reduction of pressure, the ability that then means drying medium admittance moisture is continuing to increase, the steam partial pressure that has increased between grain and drying medium is poor, thereby the speed of anhydrating of seed is accelerated, the temperature of self reduces, so just realized seed under the relatively low condition of self temperature, efficiently dry rapidly.When grain moisture content and baking temperature on-line detector 10 detect seed in the drying machine body 1 and all reach target moisture, just finished the drying of this batch seed, at this moment, the operating angle of row's grain turnover panel 19 adjust to from arrange the grain position (as among Fig. 3 along 60 ° of the direction rotations of arrow indication), can utilize the natural flow of seed, realize fast row's grain, can residual seed on drying machine body 1 and the row's grain turnover panel 19 after row's grain finishes.

The above-mentioned specific embodiment is the preferred embodiments of the present invention, can not limit the present invention, and other any change or other equivalent substitute mode that does not deviate from technical scheme of the present invention and make is included within protection scope of the present invention.

Claims (5)

1. a crop seed low-temperature circulating drying machine is characterized in that: comprise conveyer, grain moisture content and baking temperature on-line detector under drying machine body, elevator, air-introduced machine, hot-blast stove, heat exchanger, little flow inlet angle box, exhaust angle box, flow inlet angle box, delivery device, the machine; Wherein, the drying machine body is divided into, in, lower three sections, top is delay section, the middle part is dryer section, the bottom is grain discharging section, hoist installation is in the side of drying machine body, air-introduced machine is installed in the front of drying machine body, heat exchanger is set above the hot-blast stove, hot-blast stove and heat exchanger are arranged on the back side of drying machine body, air inlet duct and exhausting duct are located at the middle part of dryer section, and air inlet duct and exhausting duct are close together, the air inlet of air-introduced machine directly is connected with exhausting duct, the air inlet of air inlet duct directly is connected with the air outlet of heat exchanger, dryer section sets gradually the first transversely arranged little flow inlet angle box layer of some little flow inlet angle boxes from top to bottom, the first row air horn box layer that some exhausts angle box is transversely arranged, the flow inlet angle box layer that some flow inlet angle boxes are transversely arranged, the second row air horn box layer that some exhausts angle box is transversely arranged, the second little flow inlet angle box layer that some little flow inlet angle boxes are transversely arranged, flow inlet angle box and exhaust angle box are Heterogeneous Permutation up and down, little flow inlet angle box is connected an end and all is connected with the drying machine body with the flow inlet angle box, the other end of little flow inlet angle box and flow inlet angle box all is connected with air inlet duct, exhaust angle box one end is connected with the drying machine body, the exhaust angle box other end be connected with exhausting duct, be provided with delivery device in the grain discharging section, the delivery device below is provided with conveyer under the machine, conveyer is connected with elevator under the machine, between grain discharging section and the lower conveyer grain moisture content and baking temperature on-line detector is set.
2. crop seed low-temperature circulating drying machine according to claim 1, it is characterized in that: described drying machine bodies top is provided with second-rate valve.
3. crop seed low-temperature circulating drying machine according to claim 1, it is characterized in that: the bottom of described little flow inlet angle box and flow inlet angle box is open design, two sides of flow inlet angle box are provided with air-vent.
4. crop seed low-temperature circulating drying machine according to claim 1, it is characterized in that: the cross section of described exhaust angle box is hexagonal structure, and two sides of exhaust angle box are provided with air-vent, and box two faces down in exhaust angle are provided with the ventilative net with mesh.
5. crop seed low-temperature circulating drying machine according to claim 1 is characterized in that: described delivery device comprises row's grain motor, grain discharging wheel and row's grain turnover panel; Wherein, row's grain driven by motor grain discharging wheel rotates row's grain, row's grain motor is controlled its velocity of rotation by grain moisture content and baking temperature on-line detector, row's grain turnover panel is located at the grain discharging wheel below, row's grain turnover panel two ends are connected with the drying machine body by bearing, the operating angle of row's grain turnover panel is stepless adjustment, and row's grain turnover panel is that stepless adjustment is connected with grain discharging wheel.
CN201310027241.0A 2013-01-18 2013-01-18 Low-temperature circulation dryer for crop seeds CN103070232B (en)

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CN103727777A (en) * 2013-12-03 2014-04-16 天津大学 Drying process for green bean seeds
CN104807310A (en) * 2015-05-06 2015-07-29 佐竹机械(苏州)有限公司 Intelligent isothermal temperature control device and circulating grain drier
CN104957250A (en) * 2015-06-30 2015-10-07 李志荣 Continuously-cycling type grain dryer
CN105076387A (en) * 2015-10-08 2015-11-25 宁夏工商职业技术学院 Low-temperature circulating type grain drying tower
CN105258492A (en) * 2015-11-20 2016-01-20 山东瑞良烘干机械科技有限公司 Grain dryer quantified grain dividing device with dust removal effect
CN105285093A (en) * 2015-11-05 2016-02-03 临沂金铭机械有限公司 Grain tempering and drying device
CN105767164A (en) * 2016-04-06 2016-07-20 华南农业大学 Crop seed multi-field cooperation dryer
CN105928353A (en) * 2016-04-28 2016-09-07 安徽谷丰机械科技有限公司 Low-temperature automatic circulation grain dryer
CN106500462A (en) * 2016-11-14 2017-03-15 杨朴 A kind of paddy centrum feed bin low temperature smashes storehouse drying means
CN107062869A (en) * 2017-06-12 2017-08-18 宋忍 A kind of root of Dahurain angelica tower dryer
CN110906726A (en) * 2019-12-09 2020-03-24 湖南省农友机械集团有限公司 Drying machine

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CN103727777B (en) * 2013-12-03 2015-12-09 天津大学 A kind of drying process of green soya bean seed
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CN105285093A (en) * 2015-11-05 2016-02-03 临沂金铭机械有限公司 Grain tempering and drying device
CN105258492A (en) * 2015-11-20 2016-01-20 山东瑞良烘干机械科技有限公司 Grain dryer quantified grain dividing device with dust removal effect
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CN106500462A (en) * 2016-11-14 2017-03-15 杨朴 A kind of paddy centrum feed bin low temperature smashes storehouse drying means
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