CN104807310A - Intelligent isothermal temperature control device and circulating grain drier - Google Patents
Intelligent isothermal temperature control device and circulating grain drier Download PDFInfo
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- CN104807310A CN104807310A CN201510224986.5A CN201510224986A CN104807310A CN 104807310 A CN104807310 A CN 104807310A CN 201510224986 A CN201510224986 A CN 201510224986A CN 104807310 A CN104807310 A CN 104807310A
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Abstract
The invention relates to the field of temperature control equipment, and discloses an intelligent isothermal temperature control device and a circulating grain drier. In the temperature control equipment, when an execution motor (3) rotates by 0 degree, an outer-side plate frame (5) moves upwards to the uppermost end of an inner screen plate (6), all meshes (61) are fully exposed, and all louver boards (4) are in a horizontal state in which an ambient air inlet is fully opened; when the execution motor (3) rotates by 90 degree, the outer-side plate frame (5) moves downwards to the lowermost end of the inner screen plate (6), all the meshes (61) are fully shielded by the outer-side plate frame (5), and all louver boards (4) are in a vertical state in which a hot air inlet is fully opened; the cross-sectional area of the hot air inlet is equal to the total area of the ambient air inlet. Compared with the prior art, the intelligent isothermal temperature control device and the circulating grain drier have the advantages that grains absorb heat uniformly, so that the grains are dried at the maximum efficiency, the quality of the grains can be enhanced, and the milled rice rate is increased.
Description
Technical field
The present invention relates to temperature control device field, particularly heat temperature control device and the Cirulation type grain dryer such as a kind of intelligence.
Background technology
China is grain-production state maximum in the world and country of consumption, gross annual output grain about 500,000,000 t.According to statistics, the loss after China's grain harvest in the processes such as threshing, airing, storage, transport, processing, consumption up to about 18%, considerably beyond FAO (Food and Agriculture Organization of the United Nation) regulation 5% standard.In these losses, every year because of climate reasons, cereal have little time to dry or do not reach safe moisture cause go mouldy, the grain of the loss such as germination is up to 5%, if calculate by annual output 500000000 t grain, be equivalent to 2,500 ten thousand t grains, if eat 500g grain for each person every day, 1 year can be eaten for 6.8 ten thousand people.This numeral is surprising, and the Grain Loss receiving hand is reduced to minimum point, says from this meaning, and the mechanization of grain dry is more even more important than the mechanization of farm work, and it is the important leverage condition of cereal high yield, good harvest.
The attemperating unit of existing drying machine is generally to provide unified hot blast air quantity and wind-warm syndrome, and it does not have the amount according to the cereal in feed bin, flexible modulation hot blast temperature.In addition, there is cereal in storehouse and absorb the uneven phenomenon of heat in existing Continuous Flow following formula drying machine, such grain of rice crackle can be many, makes the yields after polished rice not high.
Summary of the invention
goal of the invention:for problems of the prior art, the invention provides heat temperature control device and the Cirulation type grain dryers such as a kind of intelligence, cereal uniform pickup heat can be made, maximal efficiency carry out grain-drying, also can improve the quality of cereal and increase rice milling yield.
technical scheme:the invention provides the heat temperature control devices such as a kind of intelligence, comprise device body, multiplely to be parallel to each other and two ends are passed respectively and are suspended on the turning cylinder of two the first side walls be parallel to each other and the second side wall upper part in described device body, the actuating motor be locked with one end of turning cylinder described in one of them, be separately fixed at shutter board on described turning cylinder and equal with described turning cylinder quantity, be wrapped in the outside sheet frame of described device body periphery, offer some mesh and be fixed on the interior web plate of described device body bottom surrounding, and to be all fixedly connected with the two ends of all described turning cylinders and the linkage be rotationally connected with described outside sheet frame, when described actuating motor rotates 0 °, described outside sheet frame moves on to the top of described interior web plate, outside all described mesh are exposed to all completely, and all described shutter boards are all in level, and this state is ambient wind import full open position, when described actuating motor rotates 90 °, described outside sheet frame moves down into described interior web plate bottom, all described mesh are blocked by described outside sheet frame all completely, and all described shutter boards are all in vertical state, and this state is hot wind inlet full open position, wherein, the sectional area of described hot wind inlet is equal with the gross area of described ambient wind import.
Present invention also offers a kind of Cirulation type grain dryer, comprise the heat temperature control devices such as described intelligence.
Further, comprise in described linkage and be positioned at first group leader's handle outside described the first side wall, first group of connecting rod, trace, and the short handle that be arranged equal with described turning cylinder quantity, and be positioned at second group leader's handle and second group of connecting rod of described second side-wall outer side, wherein, the top of each described short handle is fixedly connected with one end of each described turning cylinder respectively, and the bottom of each described short handle is all rotationally connected with described trace; One end of described first group leader's handle is fixedly connected with one end of described turning cylinder respectively, and the other end of described first group leader's handle is rotationally connected with the top of described first group of connecting rod respectively; One end of described second group leader's handle is fixedly connected with the other end of described turning cylinder respectively, and the other end of described second group leader's handle is rotationally connected with the top of described second group of connecting rod respectively; The bottom of described first group of connecting rod and described second group of connecting rod is rotationally connected with described outside sheet frame respectively.
Further, the heat temperature control devices such as described intelligence also comprise multiple sliding bearing, and multiple described sliding bearing is separately fixed at described outer panel edge edge inwall, and multiple described sliding bearing all slidingly contacts with the lateral wall of described device body.
Preferably, the rotational angle range of described actuating motor is 0 ~ 90 °.
Further, described first group leader's handle and described first group of connecting rod top, be all rotationally connected by pin between described second group leader's handle and the top of described second group of connecting rod.
Further, described Cirulation type grain dryer also comprises selection by winnowing through part, feed bin, drying section, automatic speed-changing break-in revolving valve, conveyer device&apos, elevator and blower fan, described drying section is fixed on the top of described automatic speed-changing break-in revolving valve, described feed bin is fixed on the top of described drying section, described selection by winnowing through part is positioned at the top of described feed bin, described conveyer device&apos is fixed on the below of described automatic speed-changing break-in revolving valve, the heat temperature control devices such as described intelligence are arranged on the upper back of described drying section, described blower fan is fixed on the lower front of described drying section, described hoist installation is at described selection by winnowing through part, described feed bin, the same side of described drying section and described conveyer device&apos, and described elevator can move up and down between described selection by winnowing through part and described conveyer device&apos.
Further, described automatic speed-changing break-in revolving valve comprises the equal revolution auger of motor, motor steering change-over switch, chain, drive sprocket, even number driven sprocket, multiple adjustment sprocket wheel and described driven sprocket quantity and rotating shaft; Described drive sprocket is fixedly connected with described motor, described motor steering change-over switch is electrically connected with described motor, turn round auger described in each all coaxially to be fixed by a described rotating shaft with a described driven sprocket, close with the other end after one end of described chain walks around described drive sprocket, described driven sprocket and described adjustment sprocket wheel successively.
operation principle and beneficial effect:when actuating motor rotates 0 °, that turning cylinder be fixedly connected with actuating motor also rotates 0 °, because linkage is all fixedly connected with all turning cylinders, so all turning cylinders all can and then rotate 0 °, now all shutter boards are all horizontal, and namely hot wind inlet is closed, meanwhile, because outside sheet frame uses due to linkage the top moving on to interior web plate, the mesh on interior web plate all comes out, and ambient wind import is opened completely, in like manner, when actuating motor rotates 90 °, all turning cylinders all rotate 90 °, now shutter board is in vertical position, and namely hot wind inlet is opened completely, and outside sheet frame moves down into interior web plate bottom, mesh on interior web plate is covered by outside sheet frame completely, makes ambient wind import completely closed, due in the present embodiment, the sectional area of upside hot wind inlet is equal with the gross area of downside ambient wind import, upside hot wind inlet between close while, downside ambient wind import is also in unlatching gradually, during to ensure this device busy, the area sum that in the upside area opened of hot wind inlet and downside ambient wind import, mesh is opened, all the time the sectional area of hot wind inlet or the gross area of downside ambient wind import is equaled, thus make mixed air volume constant all the time, so when using of the present invention, identical to realize the heat that cereal in unit volume receives, as long as design the relation between the time of cereal contact hot blast and hot blast temperature.
Accompanying drawing explanation
Fig. 1 is structural representation when actuating motor rotates 0 ° in heat temperature control device such as intelligence;
Fig. 2 is the rearview of Fig. 1;
Fig. 3 is the front view of Fig. 1;
Fig. 4 is structural representation when actuating motor rotates 90 ° in heat temperature control device such as intelligence;
Fig. 5 is structural representation when actuating motor rotates 45 ° in heat temperature control device such as intelligence;
Fig. 6 is the perspective view of recirculation drier;
Fig. 7 is the sectional view of Fig. 6;
Fig. 8 is the perspective view of automatic speed-changing break-in revolving valve;
Fig. 9 is the top view of Fig. 8;
Figure 10 is the front view removing Fig. 1 after abcd cover plate in Fig. 8;
Figure 11 is the sectional view along B-B face in Figure 10;
Figure 12 is the sectional view along A-A face in Fig. 9;
Figure 13 is the sectional view along C-C face in Figure 10;
Figure 14 is revolution auger rotating forward (a) and the schematic diagram of reversion (b).
Detailed description of the invention
Below in conjunction with accompanying drawing, present pre-ferred embodiments is described in detail.
Present embodiments provide for the heat temperature control devices such as a kind of intelligence, as shown in Fig. 1 ~ 3, outside sheet frame 5 is wrapped in outside device body 1, the bottom of device body 1 is made up of web plate 6 in four pieces that offer many networkings hole 61, device body 1 upper lateral be provided with four mutually put down to setting and two ends pass respectively and be suspended on the turning cylinder 2 on the first side wall 11 and the second sidewall 12, the first side wall 11 and the second sidewall 12 are two relative and parallel sidewalls, each turning cylinder 2 is fixed with a shutter board 4 respectively, wherein, one end of a turning cylinder 2 on most limit and actuating motor 3 locked fixing, and this one end is also fixedly connected with one end of one of them long handle in first group leader's handle 71 in linkage, another long handle in first group leader's handle 71 is fixedly connected with other turning cylinder 2 one end, in the other end of each long handle in first group leader's handle 71 and linkage, in first group of connecting rod 72, the top of each connecting rod is rotationally connected by pin 9, in first group of connecting rod 72, the bottom of each connecting rod is all rotationally connected with the sidewall of outside sheet frame 5, the other end of above-mentioned four turning cylinders 2 is fixedly connected with the top of four short handles be parallel to each other 74 in linkage respectively, same connecting rod 73 in the bottom of four short handles 74 and linkage is rotationally connected, one end of each long handle in second group leader's handle 75 in linkage is all fixedly connected with the top of short handle 74, namely the other end of transfer moving axis 2 is fixedly connected with, the other end of each long handle in second group leader's handle 75 is rotationally connected by pin 9 with the top of each connecting rod in group connecting rod of second in linkage 76 respectively, in second group of connecting rod 76, the bottom of each connecting rod is also all rotationally connected with the sidewall of outside sheet frame 5.
In the present embodiment, the rotational angle range of actuating motor 3 is 0 ~ 90 °, when actuating motor 3 rotates 90 °, also 90 ° are rotated with locked that the fixing turning cylinder 2 of actuating motor 3, because each turning cylinder 2 is fixedly connected with by short handle 74 by connecting rod 73, so when a turning cylinder 2 rotates 90 °, all the other turning cylinders 2 are and then rotation 90 ° also, the each shutter board 4 be now fixed on each turning cylinder 2 also rotates 90 °, namely each shutter board 4 is all in plumbness, namely upside hot wind inlet is in complete opening, actuating motor 3 turns to 90 ° while, due to the effect of first group leader's handle 71 and second group leader's handle 75, first group of connecting rod 72 and second group of connecting rod 76 also can and then move down, thus drive the outside sheet frame 5 be rotationally connected with first group of connecting rod 72 and second group of connecting rod 76 to be displaced downwardly to the lowermost end of interior web plate 6, now, mesh 61 on interior web plate 6 is all covered by outside sheet frame 5, namely ambient wind import is closed completely, as Fig. 4.
In order to reduce outside sheet frame 5 in the process moved up and down to the friction of device body 1 sidewall, in each inside sidewalls of outer panel frame 5, two sliding bearings 8 are installed respectively, and are slidably connected between the lateral wall of sliding bearing 8 and device body 1.
When actuating motor 3 turns to 0 °, also 0 ° is turned to locked that the fixing turning cylinder 2 of actuating motor 3, all the other turning cylinders 2 also and then turn to 0 °, the each shutter board 4 be now fixed on each turning cylinder 2 also turns to 0 °, namely each shutter board 4 is all in level, namely upside hot wind inlet is in buttoned-up status, turn to while 0 ° at actuating motor 3, due to the effect of first group leader's handle 71 and second group leader's handle 75, first group of connecting rod 72 and second group of connecting rod 76 also can be followed and move, thus drive the top outside sheet frame 5 that is rotationally connected with first group of connecting rod 72 and second group of connecting rod 76 moving to interior web plate 6, now, outside mesh 61 on interior web plate 6 is all exposed to, namely ambient wind import is opened completely, as Fig. 1 ~ 3.
When actuating motor 3 turns to (such as 45 °) between 0 ~ 90 °, shutter board 4 is in 45 ° of heeling conditions, and namely hot wind inlet opens half, the lowermost end of outside sheet frame 5 is positioned at the centre of web plate 6, mesh 61 is covered half, and namely ambient wind import opens half, as Fig. 5.Specific works process is same as described above, does not repeat herein.
Be worth together, in this attemperating unit, the gross area of the sectional area R1 of upside hot wind inlet and the downside ambient wind import gross area of mesh 61 (namely on all interior web plates 6) R2 is equal.When actuating motor 3 rotates between 0 ~ 90 °, the area R2 ' sum that the area R1 ' that upside hot wind inlet is opened opens with downside ambient wind import, equals R1 or R2 all the time, thus makes mixed air volume Q constant all the time, that is: R1 '+R2 '=R1=R2.
As shown in Figures 6 and 7 for having the Cirulation type grain dryer of the heat temperature control devices such as this intelligence, be followed successively by selection by winnowing through part 101 from top to bottom, feed bin 102, drying section 103, automatic speed-changing break-in revolving valve 104 and conveyer device&apos 105, the heat temperature control devices 100 such as intelligence are arranged on the upper back of drying section 103, blower fan 107 is fixed on below the front side of drying section 103, elevator 106 is arranged on selection by winnowing through part 101, feed bin 102, drying section 103, the same side of revolving valve 104 and conveyer device&apos 105, and can move up and down between selection by winnowing through part 101 and conveyer device&apos 105.Cereal drops into drying machine from elevator 106 underfeed mouth, by the running of elevator 106, cereal is carried into feed bin 102, before entering feed bin 102, cereal disperses by selection by winnowing through part 101 uniformly, makes the cereal in feed bin 102 evenly enter into drying section 103 due to self gravitation.In drying section 103, cereal is via revolving valve 104 evenly blanking, and carry out drying via the hot blast of the heat temperature control devices 100 such as intelligence, dried cereal, enter conveyer device&apos 105, again be transported to elevator 106 by conveyer device&apos 105, constantly circulate, until the near desired value of the moisture of cereal.
The structure of above-mentioned automatic speed-changing break-in revolving valve 104 is as shown in Fig. 8 ~ 13, drive sprocket 104-3 is fixed on motor 104-1, driven sprocket 104-4 is coaxially fixed by rotating shaft 104-7 with revolution auger 104-6, one end of chain 104-2 walks around drive sprocket 104-3, driven sprocket 104-4 and the adjustment sprocket wheel 104-5 for adjusting chain 104-2 degree of tightness and direction successively, motor steering change-over switch (not shown) is electrically connected with motor 104-1, for switching the rotating of motor 104-1; What show in Fig. 1 is the schematic diagram of two groups of revolving valves, often organizes in revolving valve and all comprises a drive sprocket 104-3, the two couples of driven sprocket 104-4, two to revolution auger 104-6, a two countershaft 104-7 and seven adjustment sprocket wheel 104-5.
When motor 104-1 rotates clockwise, drive sprocket 104-3 rotates clockwise, chain 104-2 rotates clockwise, in every a pair driven sprocket 104-4, the driven sprocket 104-4 on the right rotates clockwise, the driven sprocket 104-4 on the left side rotates counterclockwise, and then rotate clockwise with the revolution auger 104-6 that the right driven sprocket 104-4 is coaxially connected, rotate counterclockwise with the revolution auger 104-6 that left side driven sprocket 104-4 is coaxially connected, now be defined as the rotating forward of revolution auger 104-6, as Figure 14 (a); Otherwise be then the reversion of revolution auger 104-6, as Figure 14 (b).As shown in figure 12, after cereal enters revolution auger 104-6 above often couple of revolution auger 104-6, along with the rotation cereal of revolution auger 104-6 is extruded onto discharging opening below two revolution auger 104-6 from the both sides of two revolution auger 104-6 respectively, realize even blanking; After blocking appears in revolving valve, motor steering change-over switch controls turning to of motor 104-1, and then indirectly controls the 104-6 reversion of revolution auger or rotate forward, and material is loosened, then discharges (in Figure 12, arrow direction is Flow of Goods and Materials direction) smoothly.
The heat that cereal in unit volume receives represents with H, the time of cereal contact hot blast represents with S, hot blast temperature T represents, the mixed air volume of ambient wind and hot blast represents with Q, conversion coefficient η represents, heat to meet the grain receival in unit volume is identical all the time, then following formula will be set up:
H=η* Q*S* T
The frame for movement of the heat temperature control devices 100 such as intelligence ensure that it operationally, area R2 ' the sum that the upside area R1 ' that opens of hot wind inlet and downside ambient wind import are opened is constant all the time, wind-force one timing provided at drying machine blower fan like this, mixed air volume Q's is a constant numerical value; Simultaneously, the conversion coefficient η of equipment only follows the intrinsic devices such as the capacity of equipment relevant, same equipment coefficient is generally constant, that will solve on so controlling is exactly time S and the hot blast temperature T that cereal contacts hot blast, only both variation relation guaranteed, could realize the heat that the cereal in unit volume receives identical.
The time S of cereal contact hot blast depends on the running speed of revolving valve 104 in drying section 103, and when revolving valve 104 is with high rotation speed operation, drying section 103 cereal downstream rate accelerates, and the time S that cereal contacts with hot blast tails off, and vice versa.Therefore, regulate the time S of cereal contact hot blast, namely will adjust the operating rate of revolving valve 104.The control mode that drying machine control system adopts person-computer union andlogic control device PLC to combine.Revolving valve 104 adopts Frequency Converter Control, to regulate its speed, in frequency converter access PLC, regulates its frequency, reach the object of speed governing by PLC according to various parameter.
Arrange multiple level sensor in the feed bin 102 of drying machine, the signals collecting of level sensor enters PLC, judges current inventory by PLC, also in host computer picture, can revise or arrange inventory.According to the difference of input amount in feed bin 102, calculate and regulate revolving valve frequency in PLC.When input amount is in high charge level, revolving valve 104 frequency values is high, motor high rotation speed operation, and drying section cereal downstream rate is accelerated, and the time that cereal contacts with hot blast just shortens.When the material of drying section 103 is in low level, PLC will oppositely adjust.
The adjustment of hot blast temperature, adopts wind pushing temperature and target temperature to compare judgement and carries out.Target temperature, according to the difference of inventory, is arranged respectively, carries out finely tuning and correction according to the change of outer temperature degree simultaneously.The hot blast temperature of drying machine and outer temperature degree, entered in PLC by temperature collect module collection.The target temperature of PLC according to setting and the baking temperature of collection, once, then through intelligence computation, Drazin inverse hot-air damper, makes dry temperature consistent with target temperature to every 20 seconds multilevel iudge.
When the cereal in feed bin 102 is in high charge level, revolving valve 104 runs up, drying section 103 cereal downstream rate accelerates, now intelligence etc. heat temperature control device 100 according to target temperature value, open hot wind inlet as much as possible, hot wind inlet is opened area and is become large, thus obtains the mixing wind of higher temperature.Otherwise when the cereal of feed bin 102 is in low material level, revolving valve 104 is at low speed, drying section 103 cereal downstream rate is slack-off, now intelligence etc. heat temperature control device 100 according to target temperature value, open ambient wind import as much as possible, thus obtain the mixing wind of lower temperature.So both ensure that making full use of of thermal source, the cereal that can meet in unit are obtains same heat again simultaneously.
Above-mentioned embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalent transformations of doing according to Spirit Essence of the present invention or modification, all should be encompassed within protection scope of the present invention.
Claims (8)
1. the heat temperature control device (100) such as intelligence, it is characterized in that, comprise device body (1), multiplely to be parallel to each other and two ends are passed respectively and are suspended on the turning cylinder (2) on two the first side walls be parallel to each other (11) and the second sidewall (12) top in described device body (1), the actuating motor (3) be locked with one end of turning cylinder described in one of them (2), be separately fixed at the shutter board (4) that described turning cylinder (2) is upper and equal with described turning cylinder (2) quantity, be wrapped in the outside sheet frame (5) that described device body (1) is peripheral, offer some mesh (61) and be fixed on the interior web plate (6) of described device body (1) bottom surrounding, and be all fixedly connected with and the linkage be rotationally connected with described outside sheet frame (5) with the two ends of all described turning cylinders (2), when described actuating motor (3) rotates 0 °, described outside sheet frame (5) moves on to the top of described interior web plate (6), outside all described mesh (61) are exposed to all completely, and all described shutter boards (4) are all in level, and this state is ambient wind import full open position, when described actuating motor (3) rotates 90 °, described outside sheet frame (5) moves down into described interior web plate (6) bottom, all described mesh (61) are blocked by described outside sheet frame (5) all completely, and all described shutter boards (4) are all in vertical state, this state is hot wind inlet full open position, wherein, the sectional area of described hot wind inlet is equal with the gross area of described ambient wind import.
2. the heat temperature control device (100) such as intelligence according to claim 1, it is characterized in that, the first group leader's handle (71) being positioned at described the first side wall (11) outside is comprised in described linkage, first group of connecting rod (72), trace (73), and the short handle that be arranged (74) equal with described turning cylinder (2) quantity, and be positioned at second group leader's handle (75) and second group of connecting rod (76) in described second sidewall (12) outside, wherein, the top of each described short handle (74) is fixedly connected with one end of each described turning cylinder (2) respectively, the bottom of each described short handle (74) is all rotationally connected with described trace (73), one end of described first group leader's handle (71) is fixedly connected with one end of described turning cylinder (2) respectively, and the other end of described first group leader's handle (71) is rotationally connected with the top of described first group of connecting rod (72) respectively, one end of described second group leader's handle (75) is fixedly connected with the other end of described turning cylinder (2) respectively, and the other end of described second group leader's handle (75) is rotationally connected with the top of described second group of connecting rod (76) respectively, the bottom of described first group of connecting rod (72) and described second group of connecting rod (76) is rotationally connected with described outside sheet frame (5) respectively.
3. the heat temperature control device (100) such as intelligence according to claim 1, it is characterized in that, also comprise multiple sliding bearing (8), multiple described sliding bearing (8) is separately fixed at sheet frame (5) edge, described outside inwall, and multiple described sliding bearing (8) all slidingly contacts with the lateral wall of described device body (1).
4. the heat temperature control devices (100) such as the intelligence according to any one of claim 1 ~ 3, is characterized in that, the rotational angle range of described actuating motor (3) is 0 ~ 90 °.
5. the heat temperature control device (100) such as intelligence according to claim 2, it is characterized in that, the top of described first group leader's handle (71) and described first group of connecting rod (72), to be all rotationally connected by pin (9) between described second group leader's handle (75) and the top of described second group of connecting rod (76).
6. a Cirulation type grain dryer, is characterized in that, comprises the heat temperature control devices (100) such as the intelligence according to any one of claim 1 ~ 5.
7. Cirulation type grain dryer according to claim 6, is characterized in that, also comprises selection by winnowing through part 101, feed bin 102, drying section 103, automatic speed-changing break-in revolving valve (104), conveyer device&apos 105, elevator 106 and blower fan 107, described drying section is fixed on the top of described automatic speed-changing break-in revolving valve (104), described feed bin is fixed on the top of described drying section, described selection by winnowing through part is positioned at the top of described feed bin, described conveyer device&apos is fixed on the below of described automatic speed-changing break-in revolving valve (104), the heat temperature control devices 100 such as described intelligence are arranged on the upper back of described drying section, described blower fan is fixed on the lower front of described drying section, described hoist installation is at described selection by winnowing through part 101, described feed bin 102, the same side of described drying section 103 and described conveyer device&apos 105, and described elevator can move up and down between described selection by winnowing through part 101 and described conveyer device&apos.
8. Cirulation type grain dryer according to claim 7, it is characterized in that, described automatic speed-changing break-in revolving valve (104) comprises the equal revolution auger of motor, motor steering change-over switch, chain, drive sprocket, even number driven sprocket, multiple adjustment sprocket wheel and described driven sprocket quantity and rotating shaft; Described drive sprocket is fixedly connected with described motor, described motor steering change-over switch is electrically connected with described motor, turn round auger described in each all coaxially to be fixed by a described rotating shaft with a described driven sprocket, close with the other end after one end of described chain walks around described drive sprocket, described driven sprocket and described adjustment sprocket wheel successively.
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| JP2015226865A (en) * | 2014-05-30 | 2015-12-17 | 井関農機株式会社 | Grain drying and preparing equipment |
| CN106839738A (en) * | 2017-02-27 | 2017-06-13 | 安徽广深机电设备有限公司 | One kind circulation batch crop dryer drying chamber |
| CN112816527A (en) * | 2020-12-31 | 2021-05-18 | 佛冈飞悦机械有限公司 | Grain moisture detection device, grain drying equipment and temperature control method |
| CN111670330B (en) * | 2017-11-01 | 2022-01-18 | 株式会社久保田 | Drying machine and drying system |
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| CN2499776Y (en) * | 2001-10-10 | 2002-07-10 | 吴军港 | Grain drier |
| JP2006234333A (en) * | 2005-02-28 | 2006-09-07 | Iseki & Co Ltd | Circulation type grain drier |
| DE202007005737U1 (en) * | 2007-04-20 | 2007-07-12 | Neuero Farm- und Fördertechnik GmbH | Drying assembly for agricultural grain chamber outlet is opened and closed by a powered slide closure |
| KR20130120917A (en) * | 2012-04-26 | 2013-11-05 | 한국식품연구원 | A grain drier |
| CN103070232A (en) * | 2013-01-18 | 2013-05-01 | 华南农业大学 | Low-temperature circulation dryer for crop seeds |
| CN103651780A (en) * | 2013-08-26 | 2014-03-26 | 安徽辰宇机械科技有限公司 | Energy-saving type grain drying machine |
| CN203608779U (en) * | 2013-09-10 | 2014-05-28 | 佐竹机械(苏州)有限公司 | Drying machine |
| CN103859018A (en) * | 2014-03-31 | 2014-06-18 | 无锡中粮工程科技有限公司 | Large-output low-temperature circulating grain drying equipment |
| CN204085133U (en) * | 2014-08-13 | 2015-01-07 | 扬州天扬粮油机械制造有限公司 | Dryer cold-hot wind permanent wind quantity regulating device |
| CN204630313U (en) * | 2015-05-06 | 2015-09-09 | 佐竹机械(苏州)有限公司 | Heat temperature control device and the Cirulation type grain dryers such as intelligence |
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| JP2015226865A (en) * | 2014-05-30 | 2015-12-17 | 井関農機株式会社 | Grain drying and preparing equipment |
| CN106839738A (en) * | 2017-02-27 | 2017-06-13 | 安徽广深机电设备有限公司 | One kind circulation batch crop dryer drying chamber |
| CN111670330B (en) * | 2017-11-01 | 2022-01-18 | 株式会社久保田 | Drying machine and drying system |
| CN112816527A (en) * | 2020-12-31 | 2021-05-18 | 佛冈飞悦机械有限公司 | Grain moisture detection device, grain drying equipment and temperature control method |
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