CN1114041A - Grain drier - Google Patents

Abstract

A kind of grain drier consists of body, transportation unit, drying unit, burner, extraction unit, dust removing unit, dispersing unit, lifting unit and upper and lower cereal transporting screws, among them the top of transportation unit is a separatable guard cover, the burner is located at the outside of the door of combustion chamber, the selecting unit is located at the tail end of upper grain-transporting screw, there is a screen plate on the top discharging plate of the lifting unit, the light impurities are removed by air through screen plate, the vibrating sieve beside the discharging plate separates the thick and thin impurities, the extraction unit sends the hot air in hot wind channel whose bottom is in open shape to remove the grain dust, the grain, collecting channel is in contracting funnel shape to dischare the grains. It features simple operation and high efficiency of drying.

Description

Grain drier

The present invention relates to a kind of crop dryer, but refer to a kind of drying machine of flash baking cereal especially.

At present, the device of on the agricultural harvested water content grain being dried generally uses the heated air circulation type drying machine.The structure and the operation principle of the heated air circulation type crop dryer of knowing are like this: the Lower Half in body is provided with several semiclosed hot-flow flue spaced apart from each other and wind pumping channles, between hot-flow flue and wind pumping channle, be grain tank, the below outlet of each grain tank is equipped with a quantitatively group paddy valve plate body that can intermittently rotate, body one side is provided with a burner, the top of hot-flow flue, bottom and tail end all are closed, its both sides are parallel fine-structure mesh plate, its front end then is a hot-wind inlet, just can accept the hot blast supplied by burner (generally using the stove of fuel oil), and enter in the hot-flow flue, the bottom and the front end of wind pumping channle all are closed, ventilating duct top and both sides are the fine-structure mesh plate, wind pumping channle rear tail end then is the exhausting outlet, just can the air in the wind pumping channle be evacuated in the atmosphere by an extractor fan (being an exhaust blower), make the interior hot blast of hot-flow flue be subjected to the suction of extractor fan simultaneously, making hot blast enter cereal via both sides fine-structure mesh plate heaps in the groove, carry out the work of dry grain simultaneously, hot blast is inhaled in the wind pumping channle then, and is external by the extractor fan shedder.

Grain in the grain tank can rotate because of the intermittence of dialling the paddy valve plate, and intermittently quantitatively fall in the collecting groove of base inside, below, be provided with defeated paddy screw rod in the bottom of this collecting groove, grain can be delivered to the body front end, and grain is delivered on the body top one defeated paddy screw rod place from bottom to top by a conveying device, on average drop in the space of internal body via dispersal device, circulation can be finished the drying work of grain so repeatedly.

Because the delivery head on conveying device top is for connecting closed, repair in part and the maintenance changing, cause inconvenient maintenance and long drawback consuming time often.

The stove burner is to be locked in combustor outer casing admittedly with screw, and is very inconvenient when changing the elements such as nozzle of repairing and maintain burner, must will put in order the group burner and pull down, and can keep in repair time-consuming effort again.The defeated paddy screw rod top of going up at this external top is equiped with selecting device again, in order to provide the power of raising up to the grain in the defeated paddy screw rod of going up of top, the cereal of complete ripe fringe and Gu Chen etc. are not discharged by dust exhaust to make light weight, yet position, defeated paddy screw rod place was narrow owing to going up, do not contain air again, the sucking-off effect is limited.By being installed, fore burner produces heat, relend the air exhauster that helps the rear portion (or anterior pressure fan) with hot blast in regular turn via hot-flow flue, cereal road, wind pumping channle and pump drainage goes out, its drying efficiency is relatively poor, and the hot blast that is produced in the air channel is unequal, easily produces dry dead angle.The air channel of existing heated air circulation type drying machine is closed, after using a period of time, after the normal rice dirt drying because of paddy itself, can be subjected to mobile the pushing of do action and come off, drop via ventilative fine-structure mesh expanded metals hole and to hoard in hot-flow flue and wind pumping channle, pile up like a mountain through repeatedly baking and banking up with earth meeting, easily cause the mesh in air channel to block, reduce rate of drying, also can be in dry run, when the Mars of burner flame is sucked by wind, the dry paddy dirt in the air channel is easily ignited, have and cause the danger of burning board.For fear of above-mentioned danger, general processing mode is that the air exhauster at rear portion or anterior burner are opened or disassembled, and is promptly removed after baking and banking up with earth with rake at every turn, and this can increase removing personnel's labour intensity, and loses time.Also be pointed out that, the many designs of its material collecting tank are two inclined plane shapes towards central authorities' inclination, so that concentrating smoothly, grain drops on down defeated paddy screw rod place, do circulation or go out the paddy action and deliver to conveying device, therefore the direction that down defeated paddy screw rod is put only can be confined to junction, collecting groove two inclined-plane, be consistent direction with its junction, can say thereby make collecting groove have no elasticity, and screw rod need have long length with the bonding position of failing the paddy screw rod down.

When big capacity type that use is widened, have enough gradients for keeping the paddy hopper, be convenient to grain and discharge smoothly, then need be made into the less collecting groove of many groups, each collecting groove all is equiped with defeated paddy screw rod under a group, by a horizontal screw rod each trough valley thing is concentrated and is sent.Cause complex structure and manufacturing cost height and man-hour long.

First purpose of the present invention is to provide a kind of crop dryer, makes the delivery head top design on its conveying device top become separable protecting cover and conveying device is covered, and is convenient to change repair and the carrying out of maintenance work, in order to shortening man-hour.

Second purpose of the present invention is to provide a kind of crop dryer, by burner is fixed on can with the door closure of combustor outer casing delamination on, can be conveniently unload with changing of element such as atomizer and repair and maintain putting in order the group combustor.

The 3rd purpose of the present invention, be to provide a kind of crop dryer, make installing one sorting and dust-removing device between its conveying device and the last defeated paddy screw rod front end, so that no matter be into paddy, each cyclic process that goes out paddy or drying all can be passed through this place, and be equiped with web plate in the bottom of conveying device top reclaiming plate, enter for air, and one raised line of web plate upper end setting, when cereal is raised when sending into defeated paddy screw rod through conveying device, cereal must upwards bounce through raised line, air will be stayed light foreign material such as paddy and Gu Chen via web plate and be discharged, to reach good sorting and dust-removing effect by the attraction of the sorting and dust-removing device on top this moment.The 4th purpose of the present invention, be to provide a kind of crop dryer, make it at dust exhaust bottom installing one vibratory sieve, rice bar that can make in the grain to be mingled with and paddy bits, Gu Chen etc., through the vibratory sieve of bottom the time, can sort, with distinguish respectively from so that rice bar and paddy bits, paddy dirt are terminated to engine body exterior respectively, are beneficial to convenient pack and remove.

The 5th purpose of the present invention, be to provide a kind of crop dryer, one group of air-supply arrangement of installing before the drying layer hot-wind inlet of burner rear portion, with in conjunction with the original extractor fan in rear portion, two groups push and the exhausting structure before and after forming, and the hot blast that burner produced are forced to send in the hot-flow flue, via anus, wind pumping channle, extract out by extractor fan then, push hot blast by air-supply arrangement again.Except having the forced air supply effect, have more the effect that hot blast is stirred, make whole drying effect more perfect, avoid producing dry dead angle.

The 6th purpose of the present invention, be to provide a kind of crop dryer, the bottom design of hot-flow flue and wind pumping channle is become a triangle convex, and be not connected bottom the ventilating duct with between the web plate of side, air channel, leave appropriate gap, so that the bottom, air channel is an open shape, paddy dirt can be along the past downward landing in both sides in the tilting bottom of ventilating duct, and, reach the effect of cleaning voluntarily by the gap discharge.

The 7th purpose of the present invention, be to provide a kind of crop dryer, collecting groove is designed to the funnel taper that the four sides all has gradient, can make the interior grain of collecting groove discharge more smooth and easy, and because the collecting groove bottom is gradually-reducing shape, therefore down defeated paddy screw rod can be towards any direction setting, unrestricted fully, so that collecting groove has more elasticity with down defeated combining of paddy screw rod, send bottom can effectively large-area cereal being concentrated on and by failing the paddy screw rod down, thereby can shorten screw rod length and simplified structure, the type that is particularly useful for widening, to replace the feeding style of existing many little material collecting tanks of group and many group compound screw bar feed appliances,, reduce manufacturing cost to reduce fault rate and to be convenient to maintenance.

The 8th purpose of the present invention, be to provide a kind of crop dryer, at the exhausting unit that is provided with on the extractor fan more than two groups, flabellum in each unit is designed so that the above flabellum of at least two groups is the tandem arrangement state, and wherein one group flabellum is made up of a fixed wind cutting flabellum and a rotary type flabellum, and this is inverse state to fan blade angles, to increase wind speed and air quantity, reach bigger blast, extraction hot blast that so just can be powerful improves drying efficiency.

The technical solution used in the present invention is:

It by body, conveying device, drying device, burner, extractor fan, dust exhaust, dispersal device, pumping device and up and down defeated paddy screw rod etc. form.The delivery head top on above-mentioned conveying device top is a separable protecting cover; Outwards turn down protrusion at this delivery head sidewall end face and form horizontal commissura, on this commissura end face, be provided with a plurality of projectioies that laterally run through hole slot that have, also outwards turn down to protrude in these protecting cover four sidewall bottom surfaces in addition and form horizontal commissura, two commissuras are that corresponding shape can be bonded with each other, and be provided with a plurality of and the corresponding through hole of this projection in the commissura bottom surface of this protecting cover, run through this protruding hole slot with a bolt tip after allowing each projection pass corresponding through hole, the top secure bond of this protecting cover and this delivery head is integral; Above-mentioned burner be fixed in one can with the door closure of combustor outer casing delamination on, be positioned at this door closure one side upper and lower side one tip axle is respectively arranged, each tip axle upper and lower side is penetrated in the axle bed up and down that this combustor outer casing establishes relatively simultaneously, as long as will carry on this door closure when separating, make this time tip axle leave down axle bed, should go up tip axle and insert fully this in the axle bed, inclination is got from this door closure, and the action when it is reinstalled is just in time opposite; Above-mentioned dust exhaust is positioned at the above-mentioned defeated paddy screw rod tail end of going up, on the reclaiming plate on the body, dug an open-work, on this open-work, be equiped with the mesh web plate slightly little than grain, and one strip raised line is set in this web plate upper end, when the cereal ejection stops upwards spring through this raised line, by the attraction of superposed dust cleaning machine, air can be inhaled into via this web plate, and the slow-witted shell kicked up, Gu Chen etc. are inhaled into discharge easily along air-flow; Be provided with a plurality of apertures on this at least one sidewall in dust exhaust suction inlet place, this aperture enters for air, this aperture up and down or left and right sides be provided with a chute, this chute is equipped with a tip plate, tip plate is in order to the inlet of air on the control sidewall; Above-mentioned selecting device is positioned at described promotion reclaiming plate bottom also can install one group of vibratory sieve again, with several spring support fixation in the body top, at least include a coarse net plate, be positioned at fine-structure mesh plate top, this two web plate all is inclined to set, wherein the mesh of coarse net plate is slightly big to separate the foreign material big than grain than grain, fine-structure mesh expanded metals order is little than grain, when the grain after the dust discharge falls into vibratory sieve, pass the coarse net plate earlier and drop on the fine-structure mesh plate, foreign material such as less paddy bits, Gu Chen are promptly by this fine-structure mesh plate filtering; Above-mentioned air-supply arrangement is located at the burner rear portion, and the front portion of hot-flow flue adds one group of above air-supply arrangement, the structure of taking out after spreading to before the formation; The bottom design triangularity convex of this hot-flow flue and wind pumping channle, and do not give between this each bottom, air channel and side, air channel web plate and being connected, leave appropriate gap, make the bottom, air channel be an opening shape, paddy dirt can be along the tilting bottom of ventilating duct toward the downward landing in both sides, and is discharged by the gap; Above-mentioned collecting groove is for all being the taper funnel of gradient on four sides, because this collecting groove bottom is gradually-reducing shape, making this time fail the paddy screw rod can be towards any direction setting; Above-mentioned extractor fan is provided with the above unit of at least two groups, at least be provided with the flabellum of two groups of tandem arrangements in each unit, wherein one group flabellum is made up of the flabellum of a fixed wind cutting flabellum and a rotary type, tubular body with a hollow, be provided with one group of fixing flabellum in the end in this body, tube inner ring at this body is equipped with a rotation motor in addition, respectively be connected to movable internal fan and the external fan that rotates of energy at the two ends of this motor, make this internal fan be positioned at this fixedly the place ahead of flabellum, and this external fan is positioned at this fixedly rear of flabellum, on the outer rim of this body, be connected to a fixed cap again, be provided with one group of fixedly flabellum in this fixed cap, form two groups of above flabellums are housed in the extractor fan, should be in the same way to fixed flabellum, another to movable flabellum in the same way, and the fan blade angles of this fixed flabellum and movable flabellum is opposite fully, to increase the wind speed air quantity, quicken dry; Described extractor fan is fixed in the holder, and this holder profile is have a tapering contraction-like.

From the above mentioned, the present invention is in the junction in anus air channel, collecting groove and conveying device summit portion, the design of burning door closure sorts and the improvement of dust exhaust and the design aspect of exhausting and air exhausting device, all improve significantly than prior art, thereby make of the present invention more convenient to operately, come dry grain simpler and easy with it, speed is faster, reduce artificial labour intensity, maintenance management is also convenient more.

Embodiments of the invention are described with reference to the accompanying drawings as follows:

Fig. 1 is a schematic perspective view of the present invention.

Figure 1A is a front view of the present invention.

Figure 1B is a dorsal view of the present invention.

Fig. 1 C is a left view of the present invention.

Fig. 1 D is a right view of the present invention.

Fig. 1 E is a top view of the present invention.

Fig. 1 F is view under the present invention.

Fig. 2 is the perspective exploded view of delivery head of the present invention and protecting cover part.

Fig. 2 A is Fig. 2 bonding part enlarged diagram.

Fig. 3 is Fig. 2 part side view of the present invention.

Fig. 4 is the schematic perspective view of combustor part of the present invention.

Fig. 4 A divides three-dimensional schematic diagram for the articulated section of Fig. 4.

Fig. 4 B separates the situation schematic perspective view for Fig. 4 A's.

Fig. 4 C is the hook schematic perspective view of Fig. 4 A.

Schematic perspective view when Fig. 5 partially opens protecting cover and cuts shell open for Fig. 4.

Fig. 6 is the schematic perspective view of another embodiment of Fig. 5 part.

Fig. 7 flows to schematic diagram for hot blast among the present invention in air channel and grain tank.

Fig. 8 is the side view of air channel among the present invention and grain tank improvement.

Fig. 9 is the schematic perspective view of collecting groove among the present invention.

Figure 10 is dust exhaust schematic diagram among the present invention,

Figure 11 is selecting device schematic diagram among the present invention.

Figure 12 is the three-dimensional exploded view of extractor fan among the present invention.

At first, see also Fig. 1 and Figure 1A, Lower Half is a drying device 11 in the body 10, several spaced hot-flow flues 12 and wind pumping channle 13 are housed, as Fig. 7, two air channels 12,13 is a grain tank 14, each grain tank 14 belows outlet is a certain amount of group of paddy valve plate 20, body 10 1 sides are provided with a burner 30, stove combustor for example shown in Figure 4, be positioned at body 10 opposite sides and be provided with an extractor fan 90, at body 10 end faces defeated paddy screw rod 51 and a dispersal device 52 and a selecting device 50 and a dust exhaust 60 on one are arranged, establish a collecting groove 16 in each grain tank 14 below base 15 of bottom surface, collecting groove 16 bottoms connect establishes defeated paddy screw rod 17, is connected to a conveying device 70, so that more than spoonfuls of ground of grain upwards are delivered to body 10 tops, deliver to rotation dispersal device 52 via last defeated paddy screw rod 51, grain is scattered on average drop in body 10 inner spaces.After rotation circulation for several times, the up not defeated paddy screw rod 51 of the grain of bone dry send, and carries downwards and the grain of collecting is dressed up packs of finished products store up via a connecting pipe 18.

Above-mentioned burner 50 and extractor fan 90 are connected with hot-flow flue 12 and wind pumping channle 13 respectively, and the structure in air channel is roughly with existing identical; Wherein dispersal device 52 is different from existing rotating disc type or another kind of supports the pattern that a swash plate is scattered along swash plate naturally by grain downwards with spring, but makes one to sieve work by spring, to reach the effect of disperseing grain.

See also Fig. 2, Fig. 2 A and Fig. 3, delivery head 71 tops on conveying device 70 tops are separated into a protecting cover 72, these protecting cover 72 masks are in elements such as the idle pulley 73 of these delivery head 71 inside and transfer hopper 74 top, idle pulley 73 is to be supported in the axle center to be installed in delivery head 71 sidewall end faces and outwards to turn down and protrude to form horizontal commissura 75, these commissura 75 end faces are provided with a plurality of projectioies 77 that laterally run through hole slot 76 that have, also outwards turn down to protrude in protecting cover 72 4 sidewall bottom surfaces in addition and form horizontal commissura 78, two commissuras 75,78 is corresponding shape, and is provided with a plurality of and protruding 77 corresponding through holes 79 in commissura 78 bottom surfaces of protecting cover 72.Protecting cover 72 can adhere on the commissura 75 of delivery head 71 by its commissura 78, and make projection 77 pass corresponding aperture 76,, run through the hole slot 76 on the projection 77 then with a bolt tip 80, protecting cover 72 and delivery head 71 are combined as a whole, are placed on delivery head 71 tops with protecting cover 72.This improvement has reached by the bolt tip 80 and has separated and the effect that combines, so very convenient in the dismounting, can carry out inner the changing of each element of delivery head easily and repair and maintain, and can effectively shorten man-hour.

Continue to consult Fig. 4, Fig. 4 A, Fig. 4 B, Fig. 4 C, Fig. 5, above-mentioned burner 30 for be fixed on one can with door closure 32 that combustor outer casing 31 separates on, what make that the atomizer 34 of this burner combustor 33 aims at combustion chambers 35 connects hole 36.At Fig. 4 A, shown in Fig. 4 B first engages among the embodiment, be one tip axle 37 respectively to be arranged at the left side of door closure 32 upper and lower side, tip axle 37 upper and lower sides are penetrated in the axle bed 38 that this shell 31 establishes relatively simultaneously, rotary state after it engages is shown in Fig. 4 A, in the time will taking out, as shown in Figure 4, as long as will carry on the door closure 32, make down tip axle 37 leave down hole in the axle bed 38, at this moment, the length of last tip axle 37 that penetrates axle bed 38 mesopores is for the longest, just can get obliquely from door closure 32, it reinstalls action, also is will go up 37 insertions of tip axle earlier to go up in the axle bed, on carry door closure 32, to descend tip axle 37 to insert down again and get final product in the axle beds 38, and allow door closure 32 bottoms join, if prevent the different sound that rotates with following axle bed, one spacing ring 39 can be housed on tip axle, just can promote to rotate.

Fig. 6 is the second enforcement illustration, these door closure 32 1 end upper and lower sides are to utilize the elasticity bolt tip 40 to articulate to be fixed on the combustor outer casing 31, this elasticity bolt tip 40 is provided with a plate body portion 41, be bonded on the inner face place of door closure 32, form a pair of axle sleeve 42 for being arranged with a L-shaped bolt tip 44, utilize the elastic reaction of a spring 43 to be placed on the bolt tip 44 of 42 on two axle sleeves, when not spurring the bolt tip 40, the bolt tip 40 heads 45 protrude from door closure 32 upper and lower sides, shown in the top of Fig. 6, and this head 45 is inserted in the circular hole 46 of combustor outer casing 31, so that door closure 32 1 ends are articulated on the combustor outer casing 31, when this two bolts tip 44 inwardly spurs the shank 46 of this bolt tip 44, shown in below among Fig. 6, promptly compress spring 43 and make in the head 45 inside withdrawal door closures 32, door closure 32 1 ends can separate with combustor outer casing 31 like this, shown in Fig. 4 C, another distolateral up and down appropriate location of door closure respectively be provided with a hook 47 or keeper in case with combustor outer casing 31 be connected fixing, except fixing door closure.Also has convenient purposes of opening door closure.

So promptly fixed the combustor door closure, when the hook 47 of opening an end, but the bolt tip 44 retractions of the other end, or tip axle 37 spacings of adjustment door closure, make door closure and combustor can be put in order pulling down of group, so that changing of elements such as atomizer repaiied and maintained, save time and laborsaving, have practicality.

As Figure 10, shown in Figure 11, conveying device 70 tops and on a selecting device 50 and dust exhaust 60 is set between the defeated paddy screw rod 71, dug open-work 62 on the conveying device 70 top discharge plates 61, on this open-work 62, be equiped with the mesh web plate 63 little than grain, and be provided with a strip raised line 64 in web plate 63 upper ends, after cereal is sent into defeated paddy screw rod 71 by 74 liftings of the transfer hopper on the conveying device 70, cereal is by these bar 71 terminal ejections, stop and upwards spring through raised line 64, this moment is again by the attraction of superposed dust cleaning machine 65, air can be inhaled into via web plate 63, with the slow-witted shell of kicking up, Gu Chen etc. are sucked by dust cleaning machine 65 easily along air-flow and discharge, and each cyclic process all can be passed through part when being positioned at drying because of dust cleaning machine 65, therefore can obtain good sorting result.At least one sidewall 66 in dust cleaning machine 65 suction inlet places is provided with a plurality of apertures 67, and air from then on aperture 67 enters, and aperture 67 upper and lower sides are provided with chute 68, is combined with a tip plate 69 on this chute 68, by the promotion of tip plate 69 in order to control sidewall 66 air inlets.

Selecting device 50 is positioned at reclaiming plate 61 bottoms also can install one group of vibratory sieve 51 again, with a spring 55 support fixation in body 10 tops, at least comprise a coarse net plate 53, cooperate a fine-structure mesh plate 54 again, coarse net plate 53 is positioned at fine-structure mesh plate 54 tops, two web plates all are inclined to set, the mesh of coarse net plate 53 is big slightly than grain, can be in order to isolate the foreign material such as rice bar big than grain, fine-structure mesh plate 54 is little than grain, and the grain after dust discharge falls into vibratory sieve 51, passes coarse net plate 53 earlier and drops on the fine-structure mesh plate 54, continue to be fed forward less paddy bits, foreign material such as Gu Chen can drop on the below through fine-structure mesh plate 54 is isolated.Its rice bar, paddy bits and Gu Chen etc. through vibratory sieve 51 sort distinguish respectively from, it is outside and pack is removed to be terminated to body 10 respectively.Through above-mentioned sort with dust exhaust after, clean full grain and then slide to dispersal device 52 to be admitted to body 10 inner dry owing to all can be sorted fully in each cyclic process, reach and perfectly select the paddy effect, to improve rate of drying and grain quality.

As shown in Figure 7, above in combustion chamber 35 with hot-flow flue 12 import the place aheads, install one or more groups forced air supply device 91, this air-supply arrangement 91 is generally a pressure fan and can forces the hot blast that combustor 33 produces is sent into hot-flow flue 12, for cereal in the oven dry grain tank 14, because hot blast is forced to send into hot-flow flue 12, in regular turn via cereal, wind pumping channle 13 is extracted out by extractor fan 90 again, push hot blast except having the forced air supply effect via air-supply arrangement 91, have more the effect that hot blast is stirred, make whole drying effect more perfect, avoid producing dry dead angle, thereby reach dry effect.Demonstrate hot blast among the figure simultaneously distinguished and admirable to.

As shown in Figure 8, the bottom 92,93 of hot-flow flue 12 and wind pumping channle 13 is designed to leg-of-mutton convex, makes it have the angle of inclination, and leaves the gap between each bottom and hot-flow flue, wind pumping channle two sides web plate, do not connect, can make hot-flow flue and wind pumping channle two bottom sides become open shape like this.

When paddy dirt enters in hot-flow flue, the wind pumping channle; because of its bottom all is skewed; the landing downwards of paddy dirt; and discharge by both sides; the paddy dirt that falls is promptly discharged outside the body 10 via quantitatively dialling shell valve rod 20, collecting groove 16 and down defeated paddy screw rod 17; to guarantee the cleaning of body 10 interior hot-flow flues 12 and wind pumping channle 13, avoid blocking air channel mesh or breaking out of fire.In addition, can remove the paddy dirt in the air channel voluntarily, hoard the danger of blocking the air channel and avoiding burning board, improve the drying machine performance in the bottom, air channel to keep away paddy dirt, easy to use, and can avoid dismounting inconvenience shortcoming, can effectively save artificial and time.

Again as shown in Figure 9, collecting groove 16 is designed to the taper funnel that a four sides all has the angle of inclination, it has been broken through in the prior art only is the design on two inclined planes at the most, grain more can be concentrated slide into central outlets to fall into down defeated paddy screw rod 17 places, because collecting groove 16 bottoms are a gradually-reducing shape, cereal can be concentrated, so can effectively large-area cereal be concentrated on the bottom sends by failing paddy screw rod 17 down, allowing down defeated paddy screw rod 17 can do the 360 deg plane rotates arbitrarily, be not subjected to the restriction of fixed-direction fully, make collecting groove 16 have elasticity with down defeated combining of paddy screw rod 17, can shorten the length of screw rod, structure is simplified.

Referring again to Figure 12, extractor fan 90 of the present invention has adopted a kind of existing single tube-axial fan that is different from, but constitute by the air draft unit more than two groups, each air draft unit flabellum at least by flabellum tandem arrangement more than two groups together, wherein one group of flabellum is made up of a fixed wind cutting flabellum and another rotary type flabellum, as shown in figure 12, extractor fan 90 has a hollow tube-shape body 92, be provided with a fixing wind cutting flabellum 93 at these body 92 1 ends, that is to say, this group flabellum 93 can be made into integration with body 92, its flabellum 93 have one specific towards, like this, tube inner ring 94 at body 92 can be fixed a rotation motor 95, respectively be connected to a movable internal fan that rotates 96 and external fan 97 at these motor 95 two ends, internal fan 96 is positioned at this flabellum 93 the place aheads, external fan 97 is positioned at this flabellum 93 rears, drive rotation simultaneously by motor, in addition, be connected to a fixed cap 98 on the outer rim of body 92, in fixed cap 98, be provided with a fixing wind cutting flabellum 99, so have two groups of flabellums at an extractor fan place, and flabellum of the present invention is not all to be in same direction, but two fixed flabellums are in the same way, two movable flabellums in the same way, and the fan blade angles of this fixed flabellum and movable flabellum is opposite fully, promptly with one positive one anti-design, can increase the exhausting wind speed like this, the air quantity of extraction reaches big blast, extraction hot blast that can be powerful, reach the effect that improves drying efficiency, more rapid draing cereal.Shown in Figure 1B to Fig. 1 F, extractor fan 90 is fixed in the holder 89, the profile of this holder is have tapering contraction-like.

Claims (1)

1, a kind of crop dryer, Lower Half is a drying device in body, several spaced hot-flow flue and wind pumping channles are arranged, it between two air channels a grain tank, each grain tank below outlet is a certain amount of group of paddy valve plate, body one side is provided with a burner, be provided with an extractor fan at the body opposite side, the body end face is a defeated paddy screw rod on, one dispersal device, one selecting device and a dust exhaust, a collecting groove is established in each grain tank below of bottom surface, the collecting groove bottom connects defeated paddy screw rod, be connected to a conveying device grain upwards is delivered to the body top, deliver to this rotation dispersal device via last defeated paddy screw rod and grain is scattered it is on average dropped in this internal body space; Send at the up not defeated paddy screw rod of the grain of the back of rotation circulation for several times bone dry, and carry and be packaged into packs of finished products downwards via a connecting pipe, it is characterized in that: the delivery head top on described conveying device top is a separable protecting cover; Outwards turn down protrusion at this delivery head sidewall end face and form horizontal commissura, on this commissura end face, be provided with a plurality of projectioies that laterally run through hole slot that have, also outwards turn down to protrude in these protecting cover four sidewall bottom surfaces in addition and form horizontal commissura, two commissuras are that corresponding shape can be bonded with each other, and be provided with a plurality of and the corresponding through hole of this projection in the commissura bottom surface of this protecting cover, run through this protruding hole slot with a bolt tip after allowing each projection pass corresponding through hole, the top secure bond of this protecting cover and this delivery head is integral; Described burner be fixed in one can with the door closure of combustor outer casing delamination on, be positioned at this door closure one side upper and lower side one tip axle is respectively arranged, each tip axle upper and lower side is penetrated in the axle bed up and down that this combustor outer casing establishes relatively simultaneously, as long as will carry on this door closure when separating, make this time tip axle leave down axle bed, should go up tip axle and insert fully this in the axle bed, inclination is got from this door closure, and the action when it is reinstalled is just in time opposite; Described dust exhaust is positioned at the described defeated paddy screw rod tail end of, on the reclaiming plate on the body, dug an open-work, on this open-work, be equiped with the mesh web plate slightly little than grain, and one strip raised line is set in this web plate upper end, when the cereal ejection stops upwards spring through this raised line, by the attraction of superposed dust cleaning machine, air can be inhaled into via this web plate, and the slow-witted shell kicked up, Gu Chen etc. are inhaled into discharge easily along air-flow; Be provided with a plurality of apertures on this at least one sidewall in dust exhaust suction inlet place, this aperture enters for air, this aperture up and down or left and right sides be provided with a chute, this chute is equipped with a tip plate, tip plate is in order to the inlet of air on the control sidewall; Described selecting device is positioned at described promotion reclaiming plate bottom also can install one group of vibratory sieve again, with several spring support fixation in the body top, at least include a coarse net plate, be positioned at fine-structure mesh plate top, this two web plate all is inclined to set, wherein the mesh of coarse net plate is slightly big to separate the foreign material big than grain than grain, fine-structure mesh expanded metals order is little than grain, when the grain after the dust discharge falls into vibratory sieve, pass the coarse net plate earlier and drop on the fine-structure mesh plate, foreign material such as less paddy bits, Gu Chen are promptly by this fine-structure mesh plate filtering; Described air-supply arrangement is located at the burner rear portion, and the front portion of hot-flow flue adds one group of above air-supply arrangement, the structure of taking out after spreading to before the formation; The bottom design triangularity convex of this hot-flow flue and wind pumping channle, and do not give between this each bottom, air channel and side, air channel web plate and being connected, leave appropriate gap, make the bottom, air channel be an opening shape, paddy dirt can be along the tilting bottom of ventilating duct toward the downward landing in both sides, and is discharged by the gap; Described collecting groove all is the taper funnel of gradient for the four sides, because this collecting groove bottom is gradually-reducing shape, making this time fail the paddy screw rod can be towards any direction setting, described extractor fan is provided with the above unit of at least two groups, at least be provided with the flabellum of two groups of tandem arrangements in each unit, wherein one group flabellum is made up of the flabellum of a fixed wind cutting flabellum and a rotary type, tubular body with a hollow, be provided with one group of fixing flabellum in the end in this body, tube inner ring at this body is equipped with a rotation motor in addition, respectively be connected to movable internal fan and the external fan that rotates of energy at the two ends of this motor, make this internal fan be positioned at this fixedly the place ahead of flabellum, this external fan then is positioned at this fixedly rear of flabellum, on the outer rim of this body, be connected to a fixed cap again, be provided with one group of fixedly flabellum in this fixed cap, form two groups of above flabellums are housed in the extractor fan, should be in the same way to fixed flabellum, another to movable flabellum in the same way, and the fan blade angles of this fixed flabellum and movable flabellum is opposite fully, to increase the wind speed air quantity, quicken dry; Described extractor fan is fixed in the holder, and this holder profile is have a tapering contraction-like.

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