CN1239878C - Grain dryer - Google Patents

Abstract

To facilitate attachment-detachment of a far infrared radiation radiator in a grain drier for arranging an infrared ray radiator in a hot air chamber. This grain drier is provided with an upper storage chamber, the hot air chamber laterally juxtaposed with a grain drying passage and arranging the far infrared radiation radiator on the central side, a drying chamber having the outside constituted as an exhaust air chamber communicating with a suction fan and a circulating transfer means such as a lift existing in a lower part, gathering a grain of receiving the drying action and giving back the grain to the storage chamber. The radiator is arranged in the hot air chamber, and is arranged by connecting the inlet side to a drier front wall, and connecting the rear surface side to a drier rear wall. An opening having a prescribed width is formed in a slit shape in the longitudinal direction on an upper surface to an under surface. A burner air duct for housing a burner is arranged outside the front wall, and this burner air duct is communicated with a radiator inlet. (C)2004,JPO.

Description

Grain drier

Technical field

The present invention relates to have the grain drier of far-infrared emitter.

Background technology

In the grain drier before, far-infrared emitter is located at the Ji Gu chamber,, makes its drying flow down the grain effect far infrared irradiation heat that flows down on the plate at grain.Transport the mechanism of detection grain stagnation in the way as grain at that time, the structure of record in patent documentation 1 is arranged.

Patent documentation 1: Japanese kokai publication hei 9-89453 communique.

The structure that above-mentioned patent documentation 1 discloses though be that the grain that detects the bottom transfer device is stagnated, can not detect the stagnation that grain is carried toward the Ji Gu chamber from hothouse.

Technical scheme

In order to address the above problem, the present invention adopts following technical scheme.

Promptly, a kind of grain drier of the present invention the 1st aspect record, pile up successively in frame (1) inside and to be provided with storage with putting and to stay chamber (2), hothouse (3), Ji Gu chamber (4), be provided with the lift (5) that makes the grain circulation in the outside of frame (1), the far-infrared emitter (6) of emitting far infrared ray is set in Ji Gu chamber (4), the flowing through grain of above-mentioned Ji Gu chamber (4) of the radiation heat effect that produces from far-infrared emitter (6) flows down on the grain of plate (8), thermal wind exhausting from far-infrared emitter (6) imports above-mentioned hothouse (3), utilize the radiation heat and the thermal wind exhausting of far infrared that grain is carried out drying, it is characterized in that, flow down to set on the plate (8) at grain and detect the Temperature Detector (36) that grain flows down the temperature of plate (8), also be provided with control part (31), detect by this Temperature Detector (36) under the situation of the above high temperature of set point of temperature, this control part (31) is judged as from hothouse (3) and has produced the grain obstruction to Ji Gu chamber (4).

Like this, when grain flows down grain on the plate (8) and flows down state and be specified states, detected temperatures is in certain scope, conveying capacity minimizing when grain, far infrared irradiation heat directly affacts grain when flowing down on the face of plate (8), detected temperatures increases, and by comparing with normal condition, can detect grain and stop up.

A kind of grain drier of the present invention the 2nd aspect record, pile up successively in frame (1) inside and to be provided with storage with putting and to stay chamber (2), hothouse (3), Ji Gu chamber (4), be provided with the lift (5) that makes the grain circulation in the outside of frame (1), the far-infrared emitter (6) of emitting far infrared ray is set in Ji Gu chamber (4), the flowing through grain of above-mentioned Ji Gu chamber (4) of the radiation heat effect that produces from far-infrared emitter (6) flows down on the grain of plate (8), thermal wind exhausting from far-infrared emitter (6) imports above-mentioned hothouse (3), utilize the radiation heat and the thermal wind exhausting of far infrared that grain is carried out drying, it is characterized in that, flow down to set on the plate (8) at above-mentioned grain and detect the Temperature Detector (36) that grain flows down the temperature of plate (8) with specific time interval, also be provided with control part (31), when the rising value that relatively obtains by a preceding detected temperatures and this detected temperatures in the read-around ratio of regulation all when setting is above, this control part (31) is judged as from hothouse (3) and has produced the grain obstruction to Ji Gu chamber (4).

Like this, the rising value that current one-time detection temperature and this detected temperatures relatively obtain, pre-determined number is when predetermined value is above continuously, and control part is judged as grain and stops up.

The invention effect

The invention of the 1st aspect according to the present invention, monitor that by change the grain that is subjected to far infrared irradiation heat flows down the temperature change of plate (8) by the grain amount of flowing down, can detect the stagnation of grain, it is unusual to the conveying of Ji Gu chamber conveying from hothouse that especially available simple structure detects grain.

The invention of the 2nd aspect according to the present invention, when the continuous pre-determined number of rising value that relatively obtains by a preceding detected temperatures and this detected temperatures in regulation when above, control part is judged as grain and stagnates, so, stagnate but precision detects grain well.

The optimal morphology that carries out an invention

Far infrared irradiation heat is shone the grain on the grain stream lower face that is transported to the Ji Gu chamber, utilizes because there is not the heated character of this plate face in grain, can simply easily detect the stagnation of grain.

Description of drawings

Fig. 1 is the normal cross sectional drawing of grain drier.

Fig. 2 is the cross-sectional side view of grain drier.

Fig. 3 is the sectional drawing of overlooking of grain drier

Fig. 4 is the control panel front view.

Fig. 5 is the control block diagram.

Fig. 6 is the normal cross sectional drawing that expression hot blast temperature detector is provided with an example

Fig. 7 is the vertical view that the hot blast temperature detector is provided with an example.

Fig. 8 is the curve map of fuel quantity and detected temperatures relation.

Fig. 9 is the amplification profile of top transfer device.

Figure 10 is the front view of top transfer device.

Figure 11 is the A-A line sectional drawing among Fig. 9.

Figure 12 is the B-B line sectional drawing among Fig. 9.

Figure 13 is the amplification profile of the top transfer device of another embodiment of expression.

Figure 14 is a flow chart.

Figure 15 is a flow chart.

Figure 16 is a flow chart.

Figure 17 is the front view of the inner overview of expression control cabinet.

Figure 18 is the unitary side sectional drawing of crop dryer.

Figure 19 is the front elevation of crop dryer.

Figure 20 is the stereogram of radiation body.

Figure 21 is the stereogram of another example radiation body.

Figure 22 is the stereogram of another example radiation body.

Figure 23 is a radiation body normal cross sectional drawing.

Figure 24 is the stereogram of another example radiation body.

Figure 25 is the stereogram of another example radiation body.

Figure 26 attracts (イ) back view of fan portion and (ロ) side view.

Figure 27 is the operation board front view.

Figure 28 is the control block diagram.

Figure 29 is the normal cross sectional drawing of another routine crop dryer of expression.

Figure 30 is the front elevation of expression burner air channel installment state.

Figure 31 is (イ) front elevation of expression burner air channel installment state and (ロ) cross-sectional side view.

Figure 32 is the sectional drawing of the existing strut installment state of expression.

Figure 33 is (イ) front elevation of the strut installment state after expression improves and (ロ) A-A sectional drawing.

Figure 34 is the sectional drawing of overlooking of the existing groove sidewall installment state of expression.

Figure 35 is that (イ) of the groove sidewall installment state after expression improves overlooks sectional drawing and (ロ) stereogram.

Figure 36 is a flow chart.

Figure 37 is a time diagram.

Figure 38 is a flow chart.

Figure 39 is the normal cross sectional drawing of the crop dryer of the different examples of expression.

Figure 40 is the normal cross sectional drawing that expression is installed with the example of shield.

Figure 41 is that the expression access panel is installed routine cross-sectional side view, wanted portion's stereogram.

Figure 42 is the stereogram that the structure of far-infrared emitter is gone into outer conductance in expression.

Figure 43 is the front view that the structure of far-infrared emitter is gone into outer conductance in expression.

Embodiment

Below, with reference to description of drawings one embodiment of the invention.

The 1st, the frame of grain drying device is piled up successively in inside and to be put storage and stay chamber 2, hothouse 3, Ji Gu chamber 4.On one side make the cereal circulation by the driving that is located at outside lift 5, it is hot and from the air draft heat of far-infrared emitter 6 to make cereal be subjected to being located at the radiation of far-infrared emitter 6 of 4 ones of Ji Gu chambers on one side, makes the cereal drying.

Above-mentioned far infrared radiation body 6 is located in the Ji Gu chamber 4, and the one end is connected with burner 7, and cross section is square, left and right sides wall with below be coated with far infrared irradiation coating.The grain that flows down on the grain of Ji Gu chamber 4 flows down 8 of plates is subjected to far infrared irradiation heat.Mix with outer gas from the discharge hot gas above this far-infrared emitter 6, flow through the hot blast chamber 9a in the upper hothouse 3, and cross and form skewed grain path 11,11 from body rear portion side and toe lateral importing.Rear side at hothouse 3 has attraction fan 12, and helping above-mentioned hot blast circulation this point is identical with known structure.In addition, the pipeline 13 by the body back side supplies to left and right sides hot blast chamber 9b, 9b to the heat extraction gas of far-infrared emitter 6.The 14th, be provided in the roof shape dust discharge plate on far-infrared emitter 6 tops, it prevents to fall on the radiation body 6 from the dust of upper side on the one hand, on the other hand as guidance part, thermal wind exhausting and outer gas above-mentioned is mixed above wind makes a circulation to direct into from left and right sides.

15, the 15th, transfer valve, its positive and negative rotation on one side is Yi Bian make under the grain stream of ormal weight.The 16th, the bottom transfer device that communicates with above-mentioned lift 5.The 17th, the top transfer device that is connected with lift 5 upper side can supply to the diffusion disc 18 that 2 tops, chamber are stayed in storage to cereal.Burner 7 and cereal cycling mechanism etc. are being stored required control program of dry control and various data etc. by the computer control that has memory in this memory.That is, on operation board 19, be provided with liquid crystal display part 20, along the lower limb of this display part 20 setting 5 button forms switch 21-25, be respectively applied for and set feed, ventilation, drying, discharge, stop each pattern.Except that these switches, also setting feed amount configuration switch 26, the dryer settings switch 27 corresponding, stopping moisture configuration switch 28 etc. with the cereal kind.The 29th, emergency stop switch.

Built-in control part 31 accept on 19 on the aforesaid operations dish switching information and from the detection information of the sensor class that is provided in drying machine frame 1 each one, carry out necessary comparison operation, the starting of carrying out control, the cereal cyclic system of burner combustion amount stops to control, the displaying contents control of display part 20 etc.The switch of aforesaid operations dish 19 except can setting feed, ventilation, drying, discharging, stop, also can being set the cereal kind, sets moisture (target moisture), feed amount, regularly increase and decrease etc.

Fig. 5 represents to control block diagram.Ensconce in the s operation control portion 31 of computer and have in the control cabinet of operation board 19, in this calculating control part 31, except the set information of importing above-mentioned each switch, also import the detection information that detection information, grain that the detection information of moisture meter 32, the cereal of cereal flowing detector 33 that is located at the portion of launching of lift 5 detects information, the detection information that is located at the hot blast temperature detector of hot blast chamber 8, the detection information of outer temperature degree detector 34, outer air humidity degree detector 35 flow down near the Temperature Detector 36 the plate 8.On the other hand, the output information of calculating control part 31 has: combustion system 37 signals of burner 7, for example fuel supply with signal, its flow control signal or as transfer valve motor 38 elevator drives motors 39 control signals of the cereal circulatory system motor of respectively transferring spiral, lift 5, transfer valve 15 etc. of transfer device 15,16 up and down, attract fan 12 motor control signals, to the demonstration output of each display part 20 etc.

Lift 5 is bucker-type lifts, and a plurality of scraper bowls 41,41... are installed on endless-belt 40, and 5a is covered with periphery by sidewall.With scraper bowl 41 grain that comes out from Ji Gu chamber 4 is dragged for up and lift rising, transport to storage and stay chamber 2.Positive inboard at the sidewall 5a of lift 5 is being provided with a formula moisture meter 32, the leading edge that the outer grain of the figure of this formula moisture meter 32 is taken into portion is inserted into scraper bowl with near the scraper bowl 41 of endless-belt 40, makes grain be taken into the initial end of subordinate side facing to grain conveyor screw outside scheming in the inboard of sidewall 5a.

On moisture meter 32, be provided with the pair of electrodes roller, Yi Bian each grain of crushing Yi Bian its resistance value is scaled moisture voltage, is calculated moisture value.Also have the control part that determination of moisture is used,,, carry out various dry controls or show output output average moisture value after the conversion moisture value average treatment of predetermined grain number at this control part.

Above-mentioned grain flow down near the plate 8 Temperature Detector 36 by be in left and right sides grain flow down the inside of plate 8,8 and be attached to before and after the thermosensitive resistance type temperature sensor 42 of central authorities constitute.That is, be configured for suitably importing the ventilation space 43 of outer gas wind by 2 heavy plate bodys, this Temperature Detector 36 is installed in the inside side of the grain guide plate 8 that is positioned at upside.Therefore, about the per scheduled time T0 of temperature sensor (for example 1 minute) detect output independently, as this temperature detection value T _nWith previous temperature detection value T _N-1Rising value (the T that relatively draws _n-T _N-1) continuously n time (for example 2 times) be that set point of temperature δ (for example 2 ℃) is when above, perhaps, when this detected temperatures had surpassed regulation boundary value (for example 100 ℃), the rotation that is judged as because of transfer valve 15 had caused the grain stagnation unusually, and each one is stopped output (Fig. 8 (b)); When above-mentioned rising value during below predetermined value and less than the predetermined threshold value, being judged as is run well (Fig. 8 (a) or (C)).Temperature Detector 36 flows down the front and back central authorities of plate 8,8 except above-mentioned thermosensitive resistance type temperature sensor 42 being located at left and right sides grain, also can a plurality of sensors be set in front and back, and the mean value of sensor is as T before and after getting _nOr T _N-1

The initial distolateral peristome 45 that is provided with of handover outside the drying machine frame of top transfer device 17, being provided with at this peristome 45 can be around the discharge flashboard 48 of fulcrum 47 rotations, and the direction of this fulcrum 47 is axial consistent with spiral 46.End at fulcrum 47 is provided with control panel 49 integratedly, this control panel 49 is the center with 47 ones of fulcrums, by surmounting fulcrum spring 50 changeable is two positions, be connected linkedly with control motor 52 by connecting rod 51, along with this rotation of controlling the certain orientation (イ) of motor 52, carry out the switching of above-mentioned 2 positions.In addition, the location of each position is to rely on to discharge the butt state that flashboard 48 cuts out the butt state of peristome 45 and discharge flashboard 48 butt blocks 53 and carry out in 2 positions.54 are provided in a side of the non-contact sensor on the control panel 49, when the sensor 55,56 that is located at the fixed frame side near the time, the action of control motor 52 can detect any position that whether has arrived in above-mentioned 2 positions, stops this control motor 52 then.

In the drying machine frame of above-mentioned transfer device 17, length direction one side with hinge 58,58... covering the side plate that bottom valve 57 below this top transfer device 17 is connected top transfer device 17, can freely open and close the bottom of this transfer device 17.The structure that keeps this bottom valve 57 to open and close posture is be bearing in a plurality of positions of following length direction (being 2 positions) that the L shaped butt parts 60 on the action shaft 59 are accepted this bottom valve 57 in legend, to switch to closed posture and open posture.Above-mentioned action shaft 59 is along the length direction of bottom valve 57.That is, action shaft 59 also can rotate fulcrum 47 prolongations of above-mentioned discharge flashboard 48 integratedly and constitute, and about this action shaft 59, below lifting position is supporting bottom valve, becomes the posture of closing the bottom; Below down position is being accepted bottom valve, support to the bottom and be predetermined open state.In addition, this on-off action and above-mentioned control motor 52, control panel 49, fulcrum surmount spring 50, connecting rod 51 etc. and discharge flashboard 49 switching mechanism interlocks, and it is public making switching mechanism.

Above-mentioned butt parts 60 are the L type parts that are made of radius part 60a and contact portion 60b.Radius part 60a is to the distance of closing the bottom valve 57 of bottom during posture from action shaft 59.Contact portion 60b prolongs from radius part 60a towards orthogonal direction roughly, the part that contacts with the following upper thread of the bottom valve 57 of closed posture.Therefore, in open posture, accept bottom valve 57 with a contact condition with the connecting portion of radius part 60a and contact portion 60b.As shown in figure 12, action shaft 59 is a hollow, and its front end connects into coaxial state with hinge 61 and fulcrum 47.Above-mentioned butt parts 60 connect this action shaft 59, with nut 62,62 it are screwed togather base portion 60c from upper and lower sides and are fastened on the action shaft 59.63, the 63rd, strengthen the fixedly tool of holding concurrently.

Discharge the above-mentioned discharge flashboard of funnel 64 coverings 48 ground and be connected on the sidewall of top transfer device 17, be provided with at its front end and discharge chute (figure does not show).The 80th, top transfer device drive pulley.

Below, the effect of above-mentioned example is described.

Operation feed switch 21 utilizes lift 5 that the grain of scheduled volume is supplied to storage from feed hopper and stays chamber 2.Then, set grain kind, target moisture etc., the beginning drying operation.Connect dry switch 23, starting burner 7, in addition, by the driving of transfer valve motor 38, elevator drives motor 39, starting transfer valve 15,15, bottom transfer device 16, lift 5, the top transfer device 17 and the circulatory system of changing diffusing dish 18, and make attraction fan 12 drive rotation.Therefore, the burner hot blast heats far-infrared emitter 6, emitting far infrared ray, and by the rotation of transfer valve 15, far-infrared radiation acts on the moisture of grain inside to the grain that flows down in inclined path portion 11, promote its drying.

In addition, along with attracting blowing of fan 12, the waste hot gas of frame 1 internal circulation suitably with outside gas mix, supply to hot blast chamber 9a and 9b, 9b, act on grain by hothouse, make its drying.Like this, the irradiation with far infrared of crossing by used heat wind makes the cereal drying, before reaching the moisture value of regulation, carries out this dry run repeatedly.

When having reached the moisture value of being scheduled to, drying stops automatically, and burner and other each one of turning round shut down.Then, for outside the dry grain discharge machine, connect waste cock 24.By the signal of this waste cock 24, transfer valve motor 38,39 startings of elevator drives motor, and 52 startings of control motor.The rotation of the direction of arrow (イ) of control motor 52 begins around the rotation of fulcrum 47 clockwise directions control panel 49 by connecting rod 51 in Figure 10, turn over predetermined angular after, be subjected to fulcrum and surmount suppressing of spring 50, and rotate towards up time meter direction quickly.The clockwise direction of this control panel 49 rotation interlock discharge flashboard 48, peristome 45 is opened.This discharge flashboard 48 contacts with block 53 and stops, and is subjected to the effect of above-mentioned spring 50, keeps its posture, and simultaneously, relative by sensor 54 and sensor 55 detects this posture, will control motor 52 and close.Like this, switch owing to discharge the posture of flashboard 48, peristome 45 is opened, and the dry grain through transfer valve 15, bottom transfer device 16, lift 5 and top transfer device 17 are transferred is discharged to outside the machine from peristome 45.Action shaft 59 rotates with the action interlock of above-mentioned discharge flashboard 48, makes butt parts 60 interlocks, opens bottom valve 57.Promptly, bottom valve 57, from contact portion 60b line state of contact (solid line Figure 12) with butt parts 60, rotation by action shaft 59, rotate around 58 centers of hinge, change to that connecting portion point with radius part 60a and contact portion 60b contacts and the state (double dot dash line among Figure 12) of accepting bottom valve 57.Therefore, be stuck in the grain on 57 of the bottom valves of top transfer device 17, drop to storage and stay in the chamber 2.

Like this, butt parts 60 change posture with the rotation interlock of action shaft 59, and bottom valve 57 is changed to closed posture and open posture.But, these butt parts 60 are not annexations with bottom valve 57, but supporting by the deadweight of bottom valve, its bearing state as mentioned above, in order to be the line contact condition in closed posture, to be a contact condition in open posture, butt parts 60 are to be made of radius part 60a and contact portion 60b, so its on-off action is very flexible.In addition, when grain is piled up below valve 57 on earth tight, owing to stopping of grain, bottom valve 57 rotates towards open state and is prevented from, if butt parts 60 are connection status with bottom valve 57, when opening bottom valve 57 forcibly, will cause damage at control motor 52 switching mechanisms such as grade.But as present embodiment, butt parts 60 directly are not connected with bottom valve 57, can stay bottom valve 57 ground butt parts 60 are rotated separately, and, owing to constitute butt parts 60 with hinge member, so, enter easily in the grain of accumulation.And, do not influence the action of discharging flashboard 48 yet.

Mark 65 is provided in a side of the discharge chute of bottom valve 57 1 ends, is used for grain is discharged to 18 of diffusion discs from the handover end of top transfer device 17.This discharge chute 65 is made as one with bottom valve 57, during 57 on-off actions, changes posture the end of at together, can remove be deposited in 65 ones of this chutes, with the grain of the connecting portion of bottom valve 57.

In the foregoing description, be the fulcrum 47 coaxial and rotations integratedly of the action shaft 59 of butt parts 60 being used in the switching of supporting bottom valve 57 and being discharged flashboard 48.But also they can be separated, they are moved independently, constitute switching mechanism (Figure 13) respectively.In addition, as switching mechanism, also being not limited to the foregoing description, also can not be to make action shaft 59 rotatings by control panel 68, connecting rod 69 by rotating motor 70, but makes 60,60 actions of butt parts, makes bottom valve 57 open and close interlock.

Before, the bottom valve of the top of grain drier handover spiral can open and close interlock in order to discharge residual grain.Promptly, for example the structure shown in the Japanese kokai publication hei 11-201644 communique (patent documentation 2) is, discharge flashboard and will be scheduled to dried grain discharge, linkage is connected on the control motor that makes this discharge flashboard on-off action, end at this linkage connects the backstopping assembly of catching bottom valve linkedly, carries out the switching of bottom valve and rotates.

Structure according to this patent documentation 2, it is deadweight with attaching parts supporting bottom valve, remove by its backstop state, utilize its deadweight that bottom valve is rotated, though available less action force carries out breakdown action, but, since be link mechanism interlocking be connected on the bottom valve, so, when grain piles with, and is stacked under the state near bottom valve always, when opening and closing, especially to open when rotating, excessive drag effect is delivered to the control motor on bottom valve and through linkage, make this control motor akinesia, the danger that causes that device damages is arranged.

In the grain drier after the above-mentioned improvement, rotate the bottom valve that opens and closes this bottom in the interior bottom setting that the transfer device of transferring grain conveying mechanisms such as spiral is housed around an axle core along the grain throughput direction, downside at this bottom valve is provided with the butt parts, these butt parts can make moving axis and rotate up and down, and this action shaft is parallel with the rotating shaft core of above-mentioned bottom valve.In lifting position, the butt parts carry bottom valve below, become the posture of closing above-mentioned bottom; In the decline posture, butt parts butt bottom valve below, become the posture that the bottom is open.Also be provided with and make the butt parts make the switching mechanism that moving axis rotates.Therefore, accepted by the butt parts and the bottom valve of having closed the bottom, when the action by switching mechanism, the butt parts make moving axis when rotate the below, and bottom valve and its rotate towards the below around hinge portion linkedly, and the grain in the handover and residual are discharged from the opening portion, bottom.In addition, by the action of switching mechanism, return to original bottom closed condition.Therefore, by the action of switching mechanism, when the butt parts make moving axis towards upper and lower when rotating, bottom valve and its interlock, portion rotates towards upper and lower around hinge, and grain is transplanted on the handover terminal, perhaps the grain in transferring and residual is discharged from the opening portion, bottom.But owing to the butt parts directly are not connected with bottom valve, but the deadweight of supporting bottom valve, so, also irrelevant even the bottom valve action runs into unexpected resistance with switching mechanism, can not damage switching mechanism.

In addition, in the above-mentioned structure, the butt parts have radius part and contact portion.This radius partly is the distance from action shaft to the bottom valve of having closed the bottom.Contact portion is roughly to prolong orthogonally from this radius part, and the part that contacts with the following upper thread of the bottom valve of closed posture.Like this, when bottom valve from closing the bottom state, when switching to the state of opening this bottom, rotation by action shaft is rotated around hinge portion center, is changed to the state of being accepted bottom valve by the connecting portion point of radius part and contact portion contiguously from the contact site separated time state of contact with the butt parts.Therefore, from contact the state of bottom valve with the contact site separated time of butt parts, rotation by action shaft is rotated around hinge portion center, be changed to the radius part and contact the state of accepting this bottom valve with the connecting portion point of contact portion, so, in off position, contact with the bottom valve line, can bear bigger loading, be a contact in breakdown action, guarantees to move flexibly.

When constituting switching mechanism respectively as described above, also can be as constitute bottom valve 57 followingly, to prevent noise.Below, illustrate in grain is supplied with, to reach the method that prevents noise in the drying.Among Figure 14, when having connected feed switch 21, lift, top transfer device 17 are driven, and the grain that is supplied to enters storage and stays chamber 2, attracts fan 12 also to move simultaneously.When entering the feed pattern of having operated feed switch 21,, control motor 70 is just being changeed in order to open bottom valve 57.When the open mode of bottom valve 57 has continued the stipulated time when (being 10 minutes among the figure), the bottom of top transfer device is closed in 70 counter-rotatings of control motor with bottom valve 57.Like this, feed begins the back stipulated time, opens bottom valve 57, and the grain of supply does not supply to storage by diffusion disc and stays the chamber, so grain can not disperse along with diffusion, can eliminate the strike note that stays the locular wall face to produce because of grain collision storage, but noise-decreasing.In addition,, produce deflection in the grain, supply with the grain amount sometimes and be restricted owing to stay in storage if when opening bottom valve 57 more than the stipulated time, so, by with time arbitrarily such as above-mentioned open bottom valve 57, just can eliminate above-mentioned shortcoming.

In addition, when having connected dry switch 23 and enter drying mode, each one of the grain circulatory system is driven, and attracts fan and burner also to be driven, and grain is dried.In this dry operating, every predetermined space carries out determination of moisture to the grain from lift 5 samplings.By continuing drying operation or append drying etc., when the determination of moisture value of grain reduces predetermined moisture value (for example 20%), control motor 70 is just being changeed, bottom valve 57 is opened.Be in the lower grain of moisture and produce the tendency of higher noise with the strike note of inwall collision in the storage chamber of staying diffusion, still, as mentioned above, when being scheduled to moisture value, the moisture value reduction of grain opens bottom valve 57, like this, can eliminate strike note, noise-decreasing (Figure 14).

When carrying out dry operating night, noise-decreasing is just even more important.So, in Figure 15, detect lightness on every side with optical sensor (figure does not show), judge light and shade, when to be judged as this detected value be dark, control motor 70 is just being changeed, bottom valve 57 is opened, with similarly above-mentioned, eliminate the grain strike note, prevent that noise is to influence on every side.

Among Figure 16, the humidity around detecting in the dry operating when this detected value during less than predetermined moisture value (being less than 75% among the figure), is opened bottom valve 57, is not easy to produce under the state of dewfall stay the sidewall of chamber in storage inside and outside, can prevent the generation of noise.

Prevent the method for grain collision noise before, the existing announcement in Japanese kokai publication hei 9-138072 communique (patent documentation 3), this method is to stay the inner peripheral surface of chamber to become sound insulating construction storage, around preventing that noise from passing to.

But, in order to lower the noise at night, can take to make the method that attracts fan to reduce rotating speed, still, the noise when making the grain diffusion drop to storage to stay the chamber in order to reduce effectively just must additionally constitute sound proof panel.

For this reason, in the structure after the above-mentioned improvement, the storage that is located at grain drier stay top, chamber, and in the handover chute of transferring grain conveying mechanisms such as spiral is housed the bottom bottom valve that opens and closes this bottom is set and the switching mechanism of interlock in order to open and close it.At control part, be provided for switching to grain supply with, dry, discharge isotype and drive the input mechanism of each one of running.Wherein, when the feed operation mode is set, open signal, above-mentioned bottom valve is opened to switching mechanism output.Like this, when feed turned round, the bottom valve that the grain that the top transfer device carries out is transferred in the way was opened, and from this position grain was dropped to storage and stayed chamber, grain to go to the diffusion disc of this transfer device terminal, so grain does not stay chamber interior walls to disperse towards storage.

In addition, the storage that is located at grain drier stay top, chamber, and in the handover chute of transferring grain conveying mechanisms such as spiral is housed the bottom, the bottom valve that opens and closes this bottom is set and the switching mechanism of interlock in order to open and close it.Control part is accepted the detection signal from the grain moisture meter, when this water content detection signal when predetermined moisture value is following, open signal to switching mechanism output, above-mentioned bottom valve is opened.Like this, during drying operation carried out, grain was dried, and when moisture arrives predetermined moisture value when following, bottom valve is opened, and made grain directly drop to storage from the opening portion, bottom of top transfer device and stayed indoor.

As mentioned above, make in the feed operation or grain that the quilt in the drying operation is transferred directly drops to storage from the opening portion, bottom of top transfer device and stays the chamber, eliminate the strike note that inwall is stayed in the grain bump storage that causes because of diffusion, can realize quietization.Especially in drying operation, when moisture value reach setting when following, have under the situation than higher strike note, carry out above-mentioned action, so, under more quiet situation, evenly fall by the grain that diffusion disc produces by carrying out, it is even to be not easy to produce uneven drying.

Figure 17 represents the structure that is provided with of moisture detector 71.In being provided with the control cabinet 72 of control panel 19, face wall has range transformer 73,74, various relay 75,76, CPU printed circuit board (PCB) 77 etc.Wherein, owing to transformer group is generated heat easily, so separate with next door 78.The test section of moisture detector 71 is installed on the 72a of wall portion, and the 72a of this wall portion is the wall away from another chamber of transformer group.Before, considering the protection of test section and reduce the distribution cost, is that moisture detector is configured in the control cabinet, still, and the heating easily because control cabinet contains the forceful electric power element, so, along with the rising of internal temperature, can not accurately detect humidity sometimes.And as mentioned above, easily the transformer group of heating is isolated with next door 78, in the wall portion with the control cabinet 72 of its opposition side moisture detector 71 is set, so, moisture detector 71 is away from heating portion, and control cabinet 72 is with vertical posture setting, so, heat is toward the top diffusion, the influence that moisture detector 71 is provided with portion is little, can solve above-mentioned shortcoming, detects humidity exactly.In addition, also can replace moisture detector 71 with outer temperature degree detector, perhaps the both is provided with, and also has same effect.The 79th, power connector.

Figure 18 to Figure 39 relates to the crop dryer that the infrared emission body is arranged on the hot blast chamber.

The 81st, the frame of grain drying device is piled up successively in inside and to be put storage and stay case 82, hothouse 83, Ji Gu chamber 84.In hothouse 83, gas permeability dictyosome 85a, 85a relatively are set, form skewed grain stream underpass 85,85.The grain stream underpass 85,85 of pair of right and left forms the V font.The upper side of each grain stream underpass 85,85 forms the inboard of the left and right sides path 85,85 that forms the V font spatial portion that section is a rhombus, is hot blast described later chamber 86.The Lower Half of this rhombus sectional space organizator is formed by the gas-permeable nets body as mentioned above, and the first half of inverted v-shaped is formed by non-gas permeability sheet material.

Path interflow, left and right sides portion in above-mentioned grain stream underpass 85,85 bottoms is provided with transfer valve 87.The section of this transfer valve 87 is circular, along with its positive and negative rotation, accepts cereal from importing oral area 87a, the 87a that is formed on the periphery part, along with positive and negative rotation interlock, makes cereal drop to the Ji Gu chamber 84 of below.

At the rhombus spatial portion 86 of hothouse 83, be provided with radiation body 90.The section of this radiation body 90 is a polygon, and radiation body 90 forms from the length of hothouse front sidewall up to back face wall, and this radiation body 90 releasably is separately fixed on the machine wall front and back.The section configuration of this radiation body 90 is for similar and corresponding with the rhombus section of spatial portion, become the summary hexagon that top inverted v-shaped and bottom V font is formed by connecting with short vertical component effect, the most advanced and sophisticated and most advanced and sophisticated slot-shaped opening 91,92 that runs through front and back that forms in bottom on top.Be actually in opposite directions and (Figure 20) of fixedly forming left side and right-hand part.Left side right-hand part is such toward the installation on the front and rear wall: releasably be fixed on the connection tool 106 usefulness bolts of the shape of crossing over left right-hand part on the antetheca; The connection tool 107,107 that is located at left right-hand part independently releasably is fixed on the front and rear wall with bolt respectively.

The entrance side of above-mentioned radiation body 90 is accepted the hot blast from burner 93, and this burner 93 is configured in the drying machine face side.That is, for example regulation fixing the pneumatic type burner burner air duct 94 be fixed on the body face side, this burner air duct 94 is communicated with radiation body 90 inlets.

Rear side at body is provided with attraction fan 95, by the wind of this fan 95, leads to the air draft road 96,96 that is formed on this each foreign side of path from above-mentioned rhombus space instant heating air compartment 86 through grain stream underpass 85,85.This fan 95 is centrifugal fans, and its casing 97 is at the central portion of the air draft tube 98 that constitutes the body rear side, can be around horizontal axis P rotatably, variablely install.That is, before, with respect to fan casing 97 fan blade 99 is set rotatably, is bearing on the bolster 101, this bolster 101 runs through the spatial portion of the loudspeaker oral area 100 that is connected with said exhaust tube 98, and fan blade 99 is to be independent of fan casing 97 basically.In addition, the inner end at bolster 101 has belt pulley 102, the motor driving rotation outside quilt is schemed.

As mentioned above, make fan blade 99 be bearing in drying machine body side in fact, fan casing 97 can be rotated around trunnion axis core P with respect to body, so, can make about being directed upwardly of the exhaust duct 104 that links to each other with fan casing 97 and change, can change to various air draft directions, reduce the restriction that drying machine is provided with the position.In addition, the rotating shaft core of fan casing 97 is trunnion axis, but also can be the axle core that tilts slightly.

Set its central authorities in Ji Gu chamber 8 and have the bottom conveyer 105 of transferring spiral, accept the cereal that transfer valve 87 is sent, for example can transfer towards body face side direction.

Be provided with lift 110 in the body face side, inside has scraper bowl 110a, 110a..., and the cereal from above-mentioned bottom conveyer 52 is picked up, and puts into the initiating terminal of the top conveyer 111 that is located on the top board of top.Top board central portion in the terminal part that has the top conveyer 111 of transferring spiral is provided with the axle 112 that hangs down, and is provided with rotation diffusion disc 113 on this hangs down axle 112.

The structure that is provided with of said burner 93 is to keep the rotation pneumatic type burner that primary air blowing fan etc. is used in gasification pot or burning in the housing parts that is made of tray for combustion part and housing parts adopts, with its accumbency be housed in the burner air duct 94, burner flame square side in the body is advanced.On the machine wall of burner 93 face side, offering hot blast through port 35.The combustion flame of burner 93 becomes drying by the rotation that attracts fan 95 and uses wind, delivers to hot blast chamber 86.

In addition, surround burner air duct 94, be formed with outer conductance and go into the inlet air channel 116 of slit 116a and be fixed on machine wall front in the same manner, drying machine is set with controller (control part) 120 in its front.

Figure 27 represents the front elevation of above-mentioned inlet air duct, has 121 ones of the operation boards of controller 120.On the face of this operation board 121, have each switch 122,123,124,125,126 of setting feed, ventilation, drying, discharging, stop.Except switching to various operation modes, running is stopped.In addition, switch 127 is emergency switches, when operating this emergency switch 127, body running portion is all stopped.

Except these switches 122-127, set the feed amount configuration switch 128 of feed amount, the moisture configuration switch 129 and the dryer settings switch 130 of setting final goal moisture value in addition.This dryer settings switch 130 under the situation of rice drying, can be set at rate of drying fast, slow, common; For other cereal kind, for example wheat, barley etc. can be set the predetermined rate of drying relevant with kind.In addition, owing to dry finishing is not according to the moisture value decision, but according to the processing time decision, so, also have timing and increase, subtract switch 131,132.

Water content detection mechanism 133 adopts a moisture meter, with official hour at interval, measure moisture, each testing result of average treatment with regulation grain number unit, calculate moisture value, with detect hot blast temperature etc. alternately the display part 134 on 121 of operation boards show.Control part 120 is judged the inhomogeneous of moisture from a moisture value simultaneously, and the prematurity grain what can be judged, they are shown with 3 LED135,136.

The control part 120 of drying machine, except these switching informations on 121 on the input aforesaid operations dish, also import detection information, the fuel feed of the above-mentioned pneumatic type burner of these control part 120 controls, the running of control cereal transfer mechanism from various detecting sensors.

The following describes the effect of example.When having connected feed switch 122, be dropped in cereal in the outer feed hopper of figure and just be fed into storage and stay chamber 82 through driven lift 110, top conveyer 111 etc.

Feed moves to drying operation after finishing, and before drying, sets the setting and the desirable dry target moisture value of cereal kind with switch 129 and 130.

After having carried out above-mentioned processing, dry switch 123 is connected, lift 110, entrys into service such as conveyer 105,111, transfer valve 87, and burner 93 up and down also become driving condition, and hot blast is fed into rhombus space instant heating air compartment 86 inlets of hothouse 83.

Burner flame becomes hot blast by the rotation that attracts fan 95, mixes the back with suitable outer gas and arrives in the radiation body 90, heats this radiation body 90 on one side, is discharged to and radiates body 90 outsides Yi Bian process is formed on the slot-shaped opening 91,92 of upper and lower.After radiation body 90 is heated, radiate far infrared from the surface of this radiation body 90, this heat emission and above-mentioned hot blast one react on and are positioned at the cereal that flows down on the path 85,85, the radiant heat and the hot blast that produce with far infrared promote moisture dividing a word with a hyphen at the end of a line in cereal inside, add the moisture removal effect of hot blast, can carry out drying effectively.

The desiccation of far infrared irradiation and hot blast is carried out along the front and back of whole grain stream underpass 85,85, has passed through this and has flowed down the hot blast of path 85,85, discharges through exhaust air box 96,96.

Be subjected to the cereal of desiccation at hothouse 83, transfer spiral 111 through bottom conveyer 105, lift 110, the top of Ji Gu chamber 84 and return storage again and stay tube 82, accept modified effect.So repeatedly stroke, when having reached predetermined moisture value, the dry end.

As mentioned above, in hot blast chamber 86, should radiate body 90 heating by the hot blast that has entered in the radiation body 90, make its emitting far infrared ray, on the other hand, hot blasts in this radiation body 90 are not discharged outside the drying machine as used heat, but go out from 91,92 ones of slot-shaped openings up and down, arrive the outside of radiation body 90, like this, the radiant heat of far infrared irradiation and hot blast act on the cereal on the grain stream underpass 85,85, and the effect that combines by them makes the cereal drying effectively.

In the above-described embodiments, because the section configuration of radiation body 90 is roughly similar to the section configuration of grain stream underpass 85,85, so the cereal that flows down is subjected to the far infrared irradiation from radiation body 90 easily equably.

In addition, in the foregoing description, the parts that constitute radiation body 90 are symmetrical shapes, are disposing to devices spaced apart up and down, owing to constituted slot-shaped opening 91,92, so hot blast comes out from the top and bottom both sides, can prevent to radiate the overheated of body 90.But also can be as shown in figure 21, the slot-shaped opening 91 of side one square one-tenth in the above only, lower side is not discharged hot blast, specially promotes the heating of radiation body 90 lower side by the burner hot blast.Also can be as shown in figure 22, the slot-shaped opening 92 of side one square one-tenth below only, upper side is not discharged hot blast, specially promotes the heating of radiation body 90 upper sides by the burner hot blast.The 108th, prevent the curtain-shaped cover member that dust is used.In this configuration, except the arrangement of grain stream underpass 85,85,, also can consider the Temperature Distribution of hot blast, adopt suitable configuration according to the upper-lower position relation of burner 93 with respect to radiation body 90.

For example, inlet with respect to radiation body 90, the position of burner 93 is dropped to when below (with figure (ロ)) from standard middle position (Figure 23 (イ)), radiation body 90 heating of lower side have been promoted, so, side constitutes slot-shaped opening 91 up, and hot blast is drawn out to upper side, obtains hot blast with making whole machine balancing.In addition, when making burner 93 be positioned at the below (with figure (Ha)), because hot blast has the function of the slot-shaped opening 92 in above-mentioned bottom from the 90 lower side overflows of part radiation body.Therefore, at this moment also in the above side set slot-shaped opening 91.At this moment, with proper spacing the chevron overlay 140 that covers above the slot-shaped opening 91 is set.Like this, because overlay 140 arranged, can directly not arrive hot blast chamber 86 with the ejection state from the hot blast of slot-shaped opening 91, and after lining cover plate 140 reflections earlier, relax its imposing manner on one side to arrive hot blast chamber 86, like this, the uneven drying that can not produce the part is spared.

Otherwise, when the allocation position of burner 93 is configured in upper side, as long as according to the above-mentioned opposite setting that concerns.

Among Figure 24, Figure 25, with slot-shaped opening 91 ', 92 ' be formed on radiation body 90, near the front side of burner 93, from the hot blast of burner 93 thereafter immediately in the heating of radiation body 90, this hot blast is divided a word with a hyphen at the end of a line to radiates the outside of body 90.Like this, relatively a part of hot blast of the condition of high temperature is gone out from radiation body 90 immediately in that to have heated the radiation body after 90s.The more stable hot blast of temperature adds the latter half of heat emission body 90, and more stable ground thermotropism air compartment 86 is supplied with hot blast simultaneously.

Among Figure 29, constitute grain stream underpass 85,85 parts of being faced, can improve the absorption efficiency of far infrared irradiation with glass component 141.That is, the part of the grain stream underpass 85,85 that is made of the gas permeability parts is constituted glass component 141.Among the figure, the lower side of grain stream underpass 85,85 is constituted glass component 141, can promote the absorption of far infrared irradiation heat, when the allocation position of glass component 141 is positioned at the top, thereafter when becoming the state that makes the hot blast circulation, after the moisture that has promoted cereal is divided a word with a hyphen at the end of a line, can remove moisture effectively by hot blast.

Figure 30,31 expressions are installed with the burner air duct 94 and the relation that is formed on the outer conductance hand-hole 160 on the drying machine front side wall of burner 93.Be divided into and need the drying machine of this entrance hole 160 form and do not need this entrance hole or limit the drying machine form of this entrance hole, constitute burner air duct 94a, 94b, like this, by the installation of this burner air duct 94a or 94b, can obtain necessary outer conductance and go into pore morphology.That is, on the drying machine antetheca 81A that forms 86 ingates, hot blast chamber, the burner air duct 94a of the 1st specification and the burning air duct 94b of the 2nd specification are installed in the same manner, for example, at the bolt mounting holes 161 of same position formation up and down.On drying machine antetheca 81A, form the outer conductance hand-hole 160 corresponding with the 1st specification.The burner air duct 94a of the 1st specification is the form that imports outer gas with outer conductance hand-hole 160, so, with these entrance hole 160 all-round openings, do not add a cover.On the other hand, the burner air channel 94b of the 2nd specification is need not import the form of outer gas, so entrance hole is added a cover, the area of flange portion 161 forms greatlyyer.Like this, decide the selection of the 1st or the 2nd specification, can determine outer conductance to go into form simultaneously, can dispense the later engineering of adding a cover, have convenience by the burner air duct.In addition, also easily outer conductance being gone into pore morphology becomes a part and adds a cover form.The example of above-mentioned the 1st specification is applicable to the drying machine that has the radiation body that above-mentioned example is such, in addition, confirms the temperature inside distribution Yi Bian also can become, Yi Bian the form of the various entrance hole forms of variable setting.

Figure 33 represents to be provided in the structure that the strut 150 in the case 82 is stayed in storage.Strut b before is at one end to form threaded portion a, and the other end forms the bending that engages usefulness, before and after this strut b is erected at or about the wall c of Chu Liuxiang on, nut e is threaded over spire a goes up fixing (Figure 32).But spacer parts g meets on the beam parts f that double as is a reinforcement, and above-mentioned is fixing very inconvenient.For this reason, with bolt member 151 with the strut 150 of drum at its both ends fixedly the time, without spacer parts g, but fixing, like this, can not run into beam parts 153 by the axle collar 152 of drum, simple structure and install easy.

Figure 35 is the structure of expression chock, and this chock is used in conjunction with fixing each wall portion, and these wall portions form the bight that case 82 grades are stayed in storage.Before, be that each end that connects into rectangular-shaped cell wall h in overlooking is provided with the L shaped attachment i that engages usefulness, L shaped wedge pad j is set on the one side that they overlap with connecting, chock m is inserted the through hole k that is positioned at the groove lateral surface, fix (Figure 34).But, in this form, owing to produce a pulling force towards arrow (ニ) direction, so, in other junction surface n generation gap.

And in the structure shown in Figure 35, the one side of wedge pad 154 is formed taper 155, like this,, L shaped strips for joint parts 157,158 crimping of opposite side are become to overlap shape along with squeezing into of chock 156.

Figure 36 utilizes water content detection mechanism 123 in lift 110 ways be provided in crop dryer to stop the improvement of the structure that cereal discharges automatically.That is, pass through to open and close flashboard 162, cereal can be discharged outside the machine with discharging chute 163 in the initial end side of top conveyer 111 drying machine, that accommodate above-mentioned handover spiral.This discharging operation is to be undertaken by the waste cock 125 that operation is provided on the operation board 121.This cereal is discharged, and when cereal is positioned at the face that is higher than transfer valve 87, discharges with stationary flow, can guarantee the flow of stipulating, but, when cereal when transfer valve 87 is following, discharge rate reduces gradually, does not finally discharge fully, so, remaining grain is always arranged in the machine, can not discharge predetermined grain.Therefore, be with the naked eye to judge before, according to operator's judgement, the shutdown switch 126 that operation stops to discharge.

Have one in above-mentioned water content detection mechanism 132 and be taken into mechanism 164, be supplied in successively between the pair of electrodes roller 165,165, the resistance value between this roller is scaled grain moisture.After supplying with this discharge command signal, 132 actions of water content detection mechanism.Measure the time of predetermined grain number, store this fiducial time of Ts, behind certain hour, water content detection mechanism 133 is moved, similarly, measure the time of predetermined grain number, this time T n and above-mentioned time T s are compared, obtain cereal and discharge ending message.Specifically,, automatically make waste cock become on-state, discharge and finish (Figure 37) when the ratio Tn/Ts of said reference time T s and minute Tn reaches setting when following.

According to this structure,, can carry out high-precision discharge management even, also can after discharging operation, carry out the affirmation of regulation grain number because of the difference of each machine makes that the grain needed time of number that is taken into water content detection mechanism 133 is of all kinds.

Figure 38 represents another example.Minute Tn in the discharge in the above-mentioned predetermined grain number, with preset time TE result relatively, when satisfying the condition of Tn 〉=TE, the signal that finishes is discharged in output.At this moment scheduled time TE, though can discharge treating capacity according to standard obtains with theoretical method, but, survey, get the mean value TEave that predetermined grain number is taken into needed time T E1, TE2...TEn, when meeting above-mentioned condition, can adopt the value that is not subjected to each drying machine differences affects, more convenient.

Figure 39 represents to catch the structure of the dust of kicking up with the circulation of hot blast along with drying.That is, the outside of grain stream underpass 165,165 is constituted hot blast chamber 166, the inboard of grain stream underpass 165,165 is constituted and the exhaust air box 168 that attracts fan 167 to communicate.In addition, the air nozzle of burner (figure does not show) constitutes side's side of left and right sides hot blast chamber 166, in the opposing party's hot blast chamber 166, and the spacer portion between the handover spiral of transfer valve 170 and bottom conveyer 171, hot blast can about circulation, the hot blast branch that can supply with this side hot blast chamber 166 supplies with.In the way, warm-air supply path that constitutes like this,, can branch supply with the position of hot blast, the seizure case 174 of catching suspending dust is set in the position of the following side space 173 of the partition member that constitutes by hang plate 172.According to this structure, during hot blast supplied to exhaust air box 168 from hot blast chamber 166, the dust that swims in cereal was fallen back recovery in the seizure case 174.

Before, indoor at the hot blast that left and right sides grain flows down between path, far-infrared emitter is set, the one distolateral burner that connecting of this radiation body, another distolateral burning path that extends to the air draft pusher side that forms, this far-infrared emitter has the form (spy opens the 2002-48471 communique, patent documentation 4) that makes hot blast flow into the hot blast chamber.

But in the above-mentioned form since with burner erasure effect as purpose, so, have to that it is integrated with far-infrared emitter that burner is provided with structure, make complex structureization, in addition, do not consider the loading and unloading of far-infrared emitter yet.

In order to solve above-mentioned shortcoming, following crop dryer has been proposed, in this crop dryer, be provided with the circulation transfer mechanism that case 82, hothouse 83, lift 110 etc. are stayed in the top storage.In hothouse 83, grain stream underpass about 85,85 is set up in parallel, and at center side configuration far-infrared emitter 90, forms hot blast chamber 86; The outside of grain stream underpass 85,85 is constituted and the exhaust air box 96 that attracts fan 95 to communicate.Lift 110 grades are located at the bottom, be used to collect dried cereal and send back to storage and stay case 82, it is characterized in that, be located at the above-mentioned radiation body 90 of hot blast chamber 86, its entrance side is connected with the drying machine antetheca, and the back side is connected with the drying machine rear wall, in the above and below, form slot-shaped preset width opening 91,92 along whole fore-and-aft direction, be provided with the burner air duct 94 of accommodating burner 93 in the outside of above-mentioned antetheca, this burner air duct 94 is communicated with the inlet of radiation body 90.

The flame that the burning of machine outer burner produces becomes hot blast with outer gas, be imported in the radiation body 90 in the drying machine, should radiate body 90 heating, simultaneously from the radiation body 90 above and below slot-shaped opening 91,92 go out, enter hot blast chamber 86, in this hot blast chamber 86, with the far infrared irradiation heat that radiates from radiation body 90, with the cereal drying.

Therefore, owing to the radiation body is set along the front and back of drying machine wall, have slot-shaped opening at the fore-and-aft direction of this radiation body, so, the radiation body of burned device heating radiates far infrared irradiation heat, and this radiation heat is dry efficiently with cereal with the hot blast that comes out from slot-shaped opening.

In addition, also propose following crop dryer, in this crop dryer, be provided with the circulation transfer mechanism that case 82, hothouse 83, lift 110 etc. are stayed in the top storage.In hothouse 83, grain stream underpass about 85,85 is set up in parallel, and at center side configuration far-infrared emitter 90, forms hot blast chamber 86; The outside of grain stream underpass 85,85 is constituted and the exhaust air box 96 that attracts fan 95 to communicate.Lift 110 grades are located at the bottom, be used to collect dried cereal, and send back to storage and stay case 82, it is characterized in that, be located at the above-mentioned radiation body 90 of hot blast chamber 86, its entrance side is connected with the drying machine antetheca, and the back side is connected with the drying machine rear wall, in order to form slot-shaped preset width opening 91,92 with top along whole fore-and-aft direction in the above, above-mentioned radiation body 90 is made of left right-hand part.No matter like this, will radiate body 90 and form left right-hand part symmetric shape, be outside machine left right-hand part to be assembled, perhaps respectively independently with about be contained in the hot blast chamber 86, can both lightweight, install easily.

Be located at the above-mentioned radiation body 90 of hot blast chamber 86, its entrance side is connected with the drying machine antetheca, the back side is connected with the drying machine rear wall, forms slot-shaped preset width opening with top along fore-and-aft direction in the above, with this opening suitable length before and after the side near burner 93 forms.Like this, burner flame mixes the hot blast that produces with outer gas, mainly is being discharged to hot blast chamber 86 near place, radiation body 90 front sides, and the red line far away that helps simultaneously to radiate body 90 radiates outward, is mainly used in the help far infrared irradiation at rear side.Because hot blast comes out from slot-shaped opening in the front side, so at radiation body rear side, hot blast is not easy to be detained, and can prevent the overheated of rear side.

Below, another embodiment of drying device is described with reference to Figure 40.

The central portion of facing in hot blast chamber 86 is provided with far-infrared emitter 90, in the bottom of this far-infrared emitter 90, is provided with lower openings 175, and hot blast is emitted towards the below.Between far-infrared emitter 90 and transfer valve 87, be provided be used to cover far infrared, section is the stainless steel shield 176 of inverted v-shaped.This shield 176 prevents far-infrared radiation on the one hand to the grain that is trapped in shield 176 belows, circulates 85,85 under the grain stream about the hot blast that the lower openings 175 from far-infrared emitter 90 is flowed out directs on the other hand down.

That is, separate appropriate intervals ground in the bottom of the aeration dictyosome 85a, the 85a that form grain stream underpass 85,85 vertical panel 85b, the 85b that is connected with this dictyosome 85a, 85a is set.Closely disposing transfer valve 87 with the below of this vertical panel 85b, 85b with facing.Like this; though grain can be transferred valve 87 and flow down path 85 from grain and scrape in the tube portion of transfer valve 87; but; for a part of being with outside tube on one side that makes cereal changeed; divide a word with a hyphen at the end of a line along the transfer valve periphery on one side; form the spacer portion of above-mentioned vertical panel 85b, 85b, divide a word with a hyphen at the end of a line for the moment above the transfer valve 87 and stagnate.Mark 85c, 85c are the rubber that anti-paddy that can contact with the side face of transfer valve 87, flexible leaks, and its base portion is fixed on frame side with adapting to.

Therefore, grain is trapped in the position, top of the transfer valve 87 that is positioned at bottom, grain stream underpass 85,85 interflow.The grain of this delay is shone far infrared forcibly, is trapped in the grain of this part, is almost keeping the delay state in drying operation, so when forcing the irradiation far infrared for a long time, over-drying, the grain excessive temperature rises, and causes quality to reduce.

But, structure like that as described above, because the position is provided with shield 176 above the transfer valve 87 of the bottom, interflow of grain stream underpass 85,85, covered the irradiation of far infrared to delay grain, and, the hot blast from far-infrared emitter 90 towards current downflow is directed into left and right sides grain stream underpass 85,85, over-drying and the paddy temperature that suppresses grain rises, hot blast is delivered to grain on the left and right sides grain stream underpass 85,85 equably, make the cereal uniform dryingization, prevent that quality from reducing.

In addition, constitute the upper face side of shield 176, the cereal on the grain stream underpass 85,85 of oblique upside about reflexing to from the far infrared of the far-infrared emitter 90 radiation reflection material by shield 176 with the reflection material.

According to this structure, the reflection material of all shields 176, the far infrared of reflection radiation from far-infrared emitter 90 towards the below emits to the cereal on the left and right sides grain stream underpass 85,85, increases flowing down the far infrared irradiation amount of cereal, promotes desiccation.

In addition, also can adopt the structure of Figure 41.That is, position on the back side panel 177 of hothouse 83, relative with the central portion of far-infrared emitter 90 is provided with access panel 178, and this access panel 178 can be opened and closed by not saturating steel plate system lid 179.Lid 179 medial surface can be ground to form specularly, also mirror 180 can be set in addition.

When hot blast chamber 86 is formed in hothouse 83 inboards, be not easy to confirm the fired state of burner 93.For this reason, when the central portion configuration pneumatic type burner in burner air channel 94, the housing side covering burner air duct 94 is provided with observation window.But in this structure, air from horizontal inflow burner air duct, has bad influence to the burning of burner through observation window.

But, as above-mentioned structure, because the specular part or the mirror 180 of lid 179 medial surfaces, the fired state that can reflect burner 93, so, from the body front side, by burner air channel 94, far-infrared emitter 90, can by the fired state of burner air duct affirmation burner 93, can easily carry out the burning of burner 93 and regulate from the E position of Figure 41.In addition, owing to be provided with access panel 178 at the rear side position of far-infrared emitter 90, so the assembling operation of far-infrared emitter 90 is easy.In addition, in the structure of far-infrared emitter 90, front and back do not have curtain-shaped cover member, so can easily carry out Visual Confirmation.

Below, with reference to Figure 42 and Figure 43, the structure of outer conductance being gone into hot blast chamber 86 and far-infrared emitter 90 is described.

The central portion of facing in hot blast chamber 86 is provided with far-infrared emitter 90, and opening 91,92 is arranged in the upper and lower of this far-infrared emitter 90, is relatively disposing burner 93 in the front side of hot blast chamber 86 and far-infrared emitter 90.In the front side of hot blast chamber 86 burner air channel 94 is set, at the central portion configuration burner 93 of burner air duct 94, from the hot blast inflow hot blast chamber 86 and the far-infrared emitter 90 of burner 93.End side at burner air duct 94 is provided with wind deflector 181,181.This wind deflector 181,181 with air while the inside and the peripheral part that shrink the far-infrared emitter 90 that leads.

In the device before, in the end side of burner air duct 94, the hot blast of side flow is to flow orthogonally from the left and right sides towards central portion backward, so the flow resistance of hot blast is big.And among this embodiment, as previously mentioned, around burner 93, be provided with burner air duct 94, wind deflector 181,181 by tilted direction, the hot blast of burner air duct 94 while the inside and the peripheral part that shrink the far-infrared emitter 90 in the hot blast chamber 86 of leading, so the inflow resistance when hot blast flows into hot blast chamber 86 reduces, and can improve drying property.

Claims (2)

1. grain drier, pile up successively in frame (1) inside and to be provided with storage with putting and to stay chamber (2), hothouse (3), Ji Gu chamber (4), be provided with the lift (5) that makes the grain circulation in the outside of frame (1), the far-infrared emitter (6) of emitting far infrared ray is set in Ji Gu chamber (4), the flowing through grain of above-mentioned Ji Gu chamber (4) of the radiation heat effect that produces from far-infrared emitter (6) flows down on the grain of plate (8), thermal wind exhausting from far-infrared emitter (6) imports above-mentioned hothouse (3), utilize the radiation heat and the thermal wind exhausting of far infrared that grain is carried out drying, it is characterized in that, flow down to set on the plate (8) at grain and detect the Temperature Detector (36) that grain flows down the temperature of plate (8), also be provided with control part (31), detect under the situation of the high temperature more than the set point of temperature at this Temperature Detector (36), this control part (31) is judged as from hothouse (3) and has produced the grain obstruction to Ji Gu chamber (4).

2. grain drier, pile up successively in frame (1) inside and to be provided with storage with putting and to stay chamber (2), hothouse (3), Ji Gu chamber (4), be provided with the lift (5) that makes the grain circulation in the outside of frame (1), the far-infrared emitter (6) of emitting far infrared ray is set in Ji Gu chamber (4), the flowing through grain of above-mentioned Ji Gu chamber (4) of the radiation heat effect that produces from far-infrared emitter (6) flows down on the grain of plate (8), thermal wind exhausting from far-infrared emitter (6) imports above-mentioned hothouse (3), utilize the radiation heat and the thermal wind exhausting of far infrared that grain is carried out drying, it is characterized in that, flow down to set on the plate (8) at above-mentioned grain and detect the Temperature Detector (36) that grain flows down the temperature of plate (8) with specific time interval, also be provided with control part (31), when the rising value that relatively obtains by a preceding detected temperatures and this detected temperatures in the read-around ratio of regulation all when setting is above, this control part (31) is judged as from hothouse (3) and has produced the grain obstruction to Ji Gu chamber (4).

Images