JP2583011Y2 - Grain dryer - Google Patents

Description

[Detailed description of the invention]

[0001]

INDUSTRIAL APPLICABILITY The present invention can be easily assembled and disassembled, and can be installed in a dry house under any installation conditions by adjusting the direction of discharging the dried grains or the direction of the exhaust air to any direction. The present invention relates to an inexpensive grain dryer that can be easily installed even if it is installed, and can perform efficient drying operations in a quiet state.

[0002]

2. Description of the Related Art Conventionally, grains flowing down from an upper part of a cylindrical grain basin are caused to flow down in a drying chamber provided at a lower part of the grain basin, and are again returned from the lower part of the drying chamber to an upper part of the grain basin by a fryer. The circulating drying of cereals, in which hot air blown from the lower part of the drying chamber through the lower part of the frying device is exhausted by the dust suction device installed above the end of the fryer, while being lifted up Before the filing of the present application,
No. 38392 is publicly known.

[0003]

However, in the conventional circulating dryer for seed grains, (a) the direction in which dust is discharged after drying and the direction in which dried grains are discharged are set in a desired direction. Cannot be adjusted towards (B) The circulation drying operation and the discharging operation cannot be easily achieved with a simple configuration. (C) Whether the power transmission mechanism to the dust suction device or the grain lifting device is complicated, or the drive motor is overloaded at the start of its operation, and the drive motor is quickly worn. (D) Not only is it difficult to stably stow the lifting device at the approximate center of the grain tank, but also the centering work for installing the lifting screw shaft is extremely troublesome. (E) Since the upper and lower ends of the porous flow cylinder for forming the hot air chamber and the drying chamber are welded to the grain tank, the assembling operation takes time. (F) The cereal tank cannot be used as a storage tank that can store cereals for a long period of time without decay or deterioration. (G) Inspection or repair of the inside of the grain tank cannot be easily performed, or the grain tank cannot be used as a multipurpose container. And so on.

[0004] The present invention has been made in view of such problems of the prior art, and has as its object the direction and direction of the exhaust air in accordance with the installation state in a dry house. If it is possible to easily change the direction of discharging the dried grain, it is possible to easily switch between the circulating drying operation and the grain discharging operation and to simplify the configuration of the power transmission system to the dust suction machine and the grain lifting device Needless to say, a grain dryer that can be used as a storage tank or a multi-purpose tank can be easily provided in addition to the work of setting up a pumping gutter, centering a pumping screw shaft, and assembling a perforated flow cylinder. It is assumed that.

[0005]

In order to achieve the above object, a grain dryer according to the present invention has a cylindrical lower body divided into a ventilation drying chamber and a hot-air chamber by a funnel-shaped ventilation-flow cylinder. And a cylindrical storage main body that can store grains inside, and a cylindrical upper main body with a dust suction device and a drive motor installed on the top, so that they can rotate in the left and right direction with each other. At the substantially central position of the dryer main body, a vertical lifting gutter whose upper end opening side can be switched and connected to the inside of the storage unit main body or the discharge gutter through the switching shutter cylinder is formed. It is.

[0006] A lifting gutter provided at the base end side of the discharge gutter connected to the vertical lifting gutter at the upper end side through a switching shutter cylinder is mounted on a substantially central position of the upper main body. It is configured to be able to rotate in the left-right direction about the frame.

In addition, a single transmission belt is suspended over a driving pulley of a driving motor, a driven pulley of a dust suction device, and a driven pulley of a lifting screw mounted in a vertical lifting gutter. The belt has been loosened by a tension clutch.

[0008] The diameter of the lower main body is made larger than the diameter of the storage section main body, and an annular flow-promoting step portion is provided at a connection position between the lower main body and the storage section main body.

In addition, a bearing with a bearing is mounted on the lower end of a lifting screw shaft which is mounted on a storage shaft so as to be rotatable in the vertical lifting gutter, and the bearing with the bearing is mounted on a bottom wall of a lower body. And is fitted and supported in a bearing case that is recessed.

[0010] Further, the ventilating flow cylinder having a funnel shape is composed of a blind flow cylinder mounted on a vertical lifting gutter via a support member, and a perforated tube whose lower end is inserted and connected to the upper end of the blind flow cylinder. It is formed by a drifting cylinder.

Further, a back wind prevention shutter is slidably suspended from a discharge side opening end of the discharge gutter.

At least one or more horizontal reinforcing members having a support ring through which a vertical lifting gutter penetrates are provided in the center of the dryer body, and the vertical lifting gutter is attached to the support ring. It is fixed with a plurality of screwed adjusting screws.

An opening / closing door for inspection is provided on a part of the peripheral wall of the storage unit main body having a cylindrical shape.

In addition, a perforated plate for preventing scatter of grains is arranged on the front side of the dust suction port of the dust suction device installed on the top of the upper main body.

The entire body of the dryer is covered with a heat insulating material.

[0016]

After the grains to be dried are loaded in the dryer body by a predetermined amount, the switching shutter cylinder is moved upward, and the lifting gutter provided at the upper end opening side of the vertical lifting gutter and the base end side of the discharge gutter is provided. A circulation gap is provided between the opening and the lower end. Next, the drive motor is operated, and when the drive motor is in a normal rotation state, the tension clutch is operated and the hot air generator is operated at the same time.

Then, the dust suction device and the lifting screw are activated, and the dry hot air generated in the hot air chamber crosses the ventilation drying room from the ventilation flow cylinder by the suction action of the dust suction device to the exhaust air passage. Then, the dust is sucked into the dust suction device from the upper end side of the exhaust air passage, and is finally circulated so as to be exhausted outside the machine, and the grains caught in the dryer main body are rotated by the rotating lifting screw. After being pumped upward from the lower part of the flow drying chamber into the vertical lifting gutter, it is dispersed and supplied into the dryer body through the circulation gap. Therefore, the grains that have been circulated and flowed several times through the vertical lifting gutter are dried to a predetermined moisture by the dry hot air circulated across the ventilation drying chamber.

When it is desired to discharge the dried grain to an appropriate place through the discharge gutter, the operation of the hot air generator is stopped, the switching shutter cylinder is moved down to close the circulation gap, and the vertical lifting is performed. If the gutter and the lifting gutter are connected, the dried grain contained in the ventilation drying chamber is lifted in the vertical lifting gutter and the lifting gutter by the rotation of the lifting screw, and then the discharge gutter is removed. Is discharged outside the machine.

By the way, if the drying operation cannot be performed efficiently without changing the direction of exhaustion of the dust suction device depending on the condition of the drying house in which the drying machine main body is installed, or the grain input position and the hot air generator If it is necessary to change the installation direction, the upper body and the storage section body can be rotated to the right and left with respect to the lower body so as to be in the proper position, and even in a dry house in any situation, The drying operation can be efficiently achieved by setting the dust direction or the position of the hot air generator at an appropriate position.

When it is desired to change the direction of discharge of the dried grains depending on the working condition, the discharge gutter can be adjusted in either the right or left direction with a discharge gutter whose base end is mounted on an upper body as an axis. Then, the dried grains can be discharged in a desired direction. Also, when the dryer body is used as a grain storage tank, if the dryer body is covered with a heat insulating material, it will not be affected by the outside air temperature, and can be stored for a long time without deterioration in quality. . In this case, it is more effective to rotate the dust suction device and the lifting screw so that the grain is exposed to the cool air.

[0021]

An embodiment will be described with reference to the drawings. 1 to 7, reference numeral 1 denotes a dryer main body having a cylindrical or polygonal cylindrical shape. The dryer main body 1 has a funnel-shaped ventilation flow tube 3, and has an upper end opened by ventilation drying. A lower body 2 partitioned into a chamber 4 and a sealed hot air chamber 5, a cylindrical storage body 6 having both ends open to accommodate grains therein, and a dust suction device 8 and a drive motor 9 at the top.
And a cylindrical upper main body 7 in which three are arranged in a three-dimensional manner so as to be able to adjust the rotation in the left-right direction with respect to each other, and are connected by an appropriate connecting member. At a substantially central position inside the dryer main body 1, the lower end opening side 10 a faces the bottom of the ventilation drying chamber 4, and the upper end opening side 10 b corresponds to the upper main body 7.
A vertical hoisting gutter 10 opened in the inside is erected, and an appropriate length is provided between the upper end opening side 10b and the lower end of the hoisting gutter 11 rotatably mounted at a substantially center position of the upper body 7. A recirculation gap 12 is provided. Reference numeral 13 denotes a discharge gutter attached to one side of the lifting gutter 11. 14 is a vertical lifting gutter 10 and a lifting gutter 1
1 is a lifting screw rotatably stored along the vertical direction over the inside of the housing 1, and a bearing body 16 with a bearing is attached to the lower end of the screw shaft 15 of the lifting screw 14 as shown in FIG. The bearing body 16 with the bearing is fitted and supported in a bearing case 7 recessed in the bottom wall of the lower main body 2, and the upper end of the lifting screw shaft 15 is pierced through the lifting gutter 11 to be lifted. The centering operation of the screw 14 can be accurately and easily performed during assembly. Further, as shown in FIG. 4, a horizontal reinforcing member 18 having a support ring 19 through which the vertical lifting gutter 10 penetrates at a central position.
Is disposed in the dryer main body 1, and the vertical lifting gutter 10 penetrating into the support ring 19 is fixed by a plurality of adjusting rods 20 screwed around the support ring 19. At the same time, the lower side of the vertical hoisting gutter 10, as shown in FIG.
The base end side of the draft tube 3 is fitted into a receiving ring 22 mounted via a support member 21 and is supported by an annular stopper 23 provided around the vertical lifting gutter 10. Therefore,
With the above-described configuration, even the long vertical hoisting gutter 10 can be installed at a substantially central position of the dryer main body 1 by an insertion operation from above and a tightening action when assembling the same. Further, a funnel-shaped draft tube 3 disposed in the lower body 2 has a blind flow tube 24 attached to the lower part of the vertical lifting gutter 10 via a support member 21 and a blind end at the lower end side. Drifting grain 2
4 and the perforated flow tube 25 inserted and connected to the upper end side to simplify the assembling work. 26
Is a dust passage arranged from the ventilation drying chamber 4 side to the upper main body 7 side, and the dust passage 26 has a lower end side opened, and a side wall facing the perforated flow tube 3 having a ventilation surface. 27, and a ventilation surface 28 is also provided on the upper end side, and a drying passage 2 is provided between the porous flow tube 3 and the ventilation surface 27.
9 is formed. In addition, the above-mentioned cylindrical lower body 2
Is formed to be larger than the diameter of the cylindrical storage body 6, and a flow-down promoting step 30 having an annular shape as shown in FIG. 6 is provided at a connection position between the lower body 2 and the storage body 6. By providing, the grain flowing down from the storage body 6 toward the lower body 2 along the peripheral wall is allowed to flow smoothly without stagnation. Reference numeral 31 denotes a single transmission belt suspended around a driving pulley 32 of the driving motor 9, a driven pulley 33 of the dust suction device 8, and a driven pulley 34 of the lifting screw 14.
The power of the transmission belt 31 is interrupted by the operation of the tension clutch 35. 36 is a dust collector 8
Is a perforated plate stretched in front of the dust suction port 37 for preventing grain scattering. 37 is a switching shutter cylinder for opening or closing the circulation gap 12 formed between the upper end opening side 10b of the vertical lifting gutter 10 and the lower end of the lifting gutter 10; As shown in FIG. 7, the shutter tube 37 is moved up and down by operating the handle 38 up and down.
When the handle 38 is operated downward, the circulation gap 12 is opened to allow the grains to circulate in the dryer main body 1, and the switching shutter cylinder 37 is operated by operating the handle 38 upward. To lower the circulation gap 1
When 2 is closed, the grains in the dryer main body 1 are lifted through the vertical lifting gutter 10 and the lifting gutter 11, and finally discharged to the discharge gutter 13 by the spring 39. Reference numeral 40 denotes an input duct for inputting the cereal to be dried into the dryer main body 1. The input duct 40 is connected to one of a plurality of input ports 41 opened at the top of the upper main body 7. Has been inserted. Reference numeral 42 denotes a reverse wind prevention shutter suspended from the discharge side opening end of the discharge gutter 13.
During the circulating drying, the opening of the discharge side is closed by the suction action of the dust suction device 8, and when the grain is discharged, the opening and closing operation is performed so as to be pushed open by the flowing pressure of the discharged grain. 43
Is a one-sided or two-sided inspection opening / closing door provided on a part of the peripheral wall of the storage unit main body 6 having a cylindrical shape. 4
Reference numeral 4 denotes a heat insulating material for covering the entirety of the dryer main body 1. By covering the dryer main body 1 with the heat insulating material 44, it is possible to reliably prevent the occurrence of a dew point phenomenon inside, Cereals can be stored for long periods of time without degrading or spoiling. 45
Is a hot air generator provided in the hot air chamber 5, and 46 is an umbrella-shaped dispersion plate provided in the upper opening 10b of the vertical hoisting gutter 10.

[0022]

Since the present invention is configured as described above, the following effects are obtained. In the grain dryer of the first aspect, the lower body, the storage body, and the upper body which are three-dimensionally stacked sequentially are connected to each other so as to be rotatable in the left-right direction. It is possible to perform efficient drying work continuously in a quiet state by freely changing the direction of the dust wind to the appropriate direction and adjusting it freely. Rat harm can be prevented.

[0023] In the grain dryer of the second aspect, the discharge gutter is rotated left and right around a pumping gutter provided on the base end side,
The direction of discharge of the discharge gutter can be easily adjusted in a desired direction.

In the grain dryer according to the third aspect, the switching operation of the tension clutch cuts off the transmission of power until the drive motor reaches a normal speed, thereby preventing an overload on the drive motor and preventing the wear of the drive motor. Can be prevented or the power transmission mechanism can be simplified.

In the grain dryer according to the fourth aspect, the grains flow smoothly without being stagnated at the connection position between the lower main body and the storage section main body, thereby preventing the generation of uneven dried grains due to uneven flow. When storing or transporting, the storage unit main body can be stored in the lower main body in an inverted state.

In the grain dryer according to the fifth aspect, at the time of assembling the lifting screw, the lifting screw can be easily inserted into and supported by the bearing case provided with a bearing in the bottom of the lower body. Can be installed at an accurate position.

In the grain dryer according to the sixth aspect, the ventilation flow cylinder can be installed in the lower body simply by inserting and connecting the lower end of the perforated flow cylinder to the upper end of the vertical lifting gutter. Can be easily done.

In the grain dryer according to the seventh aspect, during the drying operation, it is possible to reliably prevent air from leaking into the dryer body from the discharge-side opening end of the discharge gutter, and to smooth the flow of the dry hot air. Drying efficiency can be promoted.

In the grain dryer according to the present invention, even if the vertical lifting gutter is long, it is possible to accurately erect it at substantially the center of the dryer body. The whole body can be made strong.

In the grain dryer of the ninth aspect, it is possible to easily perform inspection work and repair work inside the dryer body by using the opening / closing door, or the dryer body can be used as a container for multiple purposes. .

[0031] In the grain dryer of the tenth aspect, it is possible to reliably prevent the grains during the circulation drying operation from being sucked into the dust suction machine and being discharged outside the machine, thereby eliminating the loss of grains.

In the grain dryer according to the eleventh aspect, the grain is stored for a long time without deteriorating the quality while preventing the occurrence of a dew point phenomenon due to the outside air temperature inside the body of the dryer. Can be used as a storage tank.

[Brief description of the drawings]

FIG. 1 is a front view of a grain dryer in which a part is cut away and a main part is broken.

FIG. 2 is a cross-sectional plan view taken along line AA of FIG.

FIG. 3 is an enlarged vertical sectional front view showing a state in which a lower portion of a lifting screw partially cut away is suspended.

FIG. 4 is an enlarged plan sectional view showing a fixed state of a vertical notched gutter partly cut away.

FIG. 5 is an enlarged front view showing a lower supporting state of a vertical lifting gutter in which a part is cut away and a main part is broken.

FIG. 6 is an enlarged vertical sectional front view showing a connection state between the lower main body and the storage section main body, with a part cut away.

FIG. 7 is an enlarged vertical sectional front view partially cut away showing an operation state of a switching shutter cylinder.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Dryer main body 2 Lower main body 3 Ventilation flow tube 4 Ventilation drying room 5 Hot air chamber 6 Reservoir main body 7 Upper main body 8 Dust suction machine 9 Drive motor 10 Vertical hoisting gutter 10a Lower end opening side 10b Upper end opening side 12 Circulation gap 13 Discharge gutter 14 Lifting screw 15 Screw shaft 16 Bearing body with bearing 17 Bearing case 18 Horizontal reinforcing body 19 Support ring 20 Adjustable screw 21 Support member 24 Blind flow tube 25 Porous flow tube 30 Step 31 Transmission belt 32 Drive pulley 33, 34 Followed pulley 35 Tension clutch 36 Grain scattering prevention plate 37 Switching shutter cylinder 42 Backwind prevention shutter 43 Inspection door 44 Insulation material

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) F26B 17/14

Claims (11)

(57) [Scope of request for utility model registration] 1. A cylindrical lower body divided inside into a ventilation drying chamber and a hot air chamber by a funnel-shaped ventilation flow cylinder, a cylindrical storage body that can store grains inside, and a dust-absorbing part on the top. Machine,
The cylindrical upper body on which the drive motor is installed is superposed so as to be rotatable in the left-right direction with respect to each other to form a cylindrical dryer main body, and the upper end opening side is stored at a substantially central position of the dryer main body. A grain dryer having a vertical lifting gutter which can be switched and connected to the inside of the main body or to a discharge gutter via a switching shutter cylinder. 2. A discharge gutter provided at a base end side of a discharge gutter connected to a vertical discharge gutter at an upper end side through a switching shutter cylinder at a substantially center position of an upper main body. 2. The grain dryer according to claim 1, wherein the grain dryer can be rotated in the left-right direction about the frame. 3. A transmission belt is suspended over a drive pulley of a drive motor, a driven pulley of a dust suction device, and a driven pulley of a lifting screw housed in a vertical lifting gutter. 2. The grain dryer according to claim 1, wherein the belt is relaxed by a tension clutch. 4. A flow-down promoting step portion having an annular shape is provided at a connecting position between the lower main body and the storage portion main body, wherein the diameter of the lower main body is formed larger than the diameter of the storage portion main body. 2. The grain dryer according to 1. 5. A bearing body with a bearing is mounted on a lower end of a lifting screw shaft mounted on a storage shaft so as to be rotatable in a vertical lifting gutter, and the bearing body with a bearing is recessed in a bottom wall of a lower main body. 2. The grain dryer according to claim 1, wherein the grain dryer is fitted and supported in a bearing case. 6. A funnel-shaped ventilated flow cylinder comprises a blind flow cylinder mounted on a vertical lifting gutter via a support member, and a perforated tube whose lower end is inserted into and connected to the upper end of the blind flow granule. The grain dryer according to claim 1, wherein the grain dryer is formed by a flowing grain cylinder. 7. A back wind prevention shutter is slidably suspended from a discharge-side opening end of the discharge gutter.
A grain dryer as described. 8. Inside the dryer main body, at least one or more horizontal reinforcing members having a support ring through which a vertical lifting gutter penetrates are provided at a central position, and the vertical lifting gutter is attached to the support ring. 2. The grain dryer according to claim 1, wherein the grain dryer is fixed by a plurality of adjusting screw rods. 9. The grain dryer according to claim 1, wherein an opening / closing door for inspection is provided on a part of a peripheral wall of the storage unit main body having a cylindrical shape. 10. The grain dryer according to claim 1, wherein a perforated plate for preventing grain scattering is disposed on the front side of the dust suction port of the dust suction machine installed on the top of the upper main body. 11. The grain dryer according to claim 1, wherein the entire periphery of the dryer body is covered with a heat insulating material.