JPH0849974A - Grain drying/refining apparatus - Google Patents

Abstract

PURPOSE:To accomplish the refining work of unhulling, polishing, selection or the like simultaneously with the drying of grain by arranging a grain refining device in a grain circulation path of a grain drier which dries the grain in circulation. CONSTITUTION:A grain refining device 11 is arranged in a grain circulation path of a grain drier which dries the grain being circulated, a screw conveyor 13 is mounted in the grain refining device 11 and the initial end side of transportation of a cylinder 12 arranged in a horizontal way is connected to a chaff raising device. A rotary disc 17 is provided on the same shaft of the screw conveyor 13 sticking out from the final end of the transportation of the cylinder 12. A fixed disc 16 is provided at the final end part of the cylinder 13 facing the rotary disc 17 to perform refining work for the grain being dried. This enables refining work of unhulling, polishing, selection and the like simultaneously with the drying of the grain efficiently thereby embodying the reduced cost.

Description

Detailed Description of the Invention

[0001]

INDUSTRIAL APPLICABILITY The present invention provides a grain preparation device in the grain circulation path of a grain dryer for drying grains while circulating them, and also performs preparation operations such as hulling, sorting, grain polishing, etc. at the same time as drying. The present invention relates to a grain drying and preparing machine.

[0002]

2. Description of the Related Art Conventionally, a grain dryer for drying grains while circulating them has been known. This grain dryer is, for example, one that dries high-moisture grains harvested with combine to almost predetermined moisture. Then, the dried grains are separately subjected to preparation work such as hulling, sorting, and grain polishing.

[0003]

As described above, in the conventional grain dryer, only the grain is dried, and the subsequent preparation operations such as hulling, sorting and grain polishing are performed separately. ing. Therefore, there is a problem in rationalizing the dry preparation work.

Therefore, the present invention effectively utilizes the functions of the conventional dryer, and has not only the drying function but also the preparation functions such as hulling, sorting, and grain polishing.
An object of the present invention is to provide a grain drying / preparing machine capable of streamlining work and reducing costs.

[0005]

In order to achieve the above object, the present invention provides (1). A grain preparation device is disposed in a grain circulation path of a grain dryer that dries while circulating grains.
(2) .The grain brewing device has a screw conveyor built in, and the starting side of the horizontally arranged cylinder is connected to the grain lifting device, and it projects outward from the ending end of the cylinder and rotates coaxially with the screw conveyor. A disk is provided, and a fixed disk is provided at the end of the cylinder so as to face the rotary disk, and (3) the gap between the rotary disk and the fixed disk is adjustable.

[0006]

With the above-mentioned structure, the grain drying and preparing machine of the present invention has the following features. By arranging the grain preparation device in the grain circulation path of the grain dryer that circulates and dry the grain, preparation work such as hulling, grain polishing, and sorting is performed at the same time as drying the grain. Also,
Drying is accelerated. ． The grain preparation device is equipped with a screw conveyor, the transfer start end side of the horizontally arranged cylinder is connected to the lifting device, and the rotary disk is provided coaxially with the screw conveyor by projecting outward from the transfer end of the cylinder. By providing a fixed disk at the end of the cylinder so as to face the rotary disk, preparation work can be performed on the grain being dried. ． Since the gap between the rotary disc and the fixed disc can be adjusted, grain hulling work, grain polishing work and transport work can be selectively performed.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be specifically described below with reference to the accompanying drawings. In FIG. 1, reference numeral 1 denotes a grain drying / preparing machine according to the present invention. The grain drying / preparing machine 1 has a tempering section 3, a drying section 4, and a rotary section in a box-shaped housing 2 like the well-known grain drying machine. It is equipped with a valve 5 and the like. A sorting screw 6 is provided below the rotary valve 5, and a sorting screen 7 that can be replaced with a different mesh is provided below the rotary valve 5, and the sorting screw 6 constitutes a transport sorting unit. An immature grain discharge screw 8 for discharging the immature grains, dust, and the like filtered from the selection screen 7 to the outside of the machine is provided below the sorting screen 7.

A bucket elevator 9 and an immature grain discharging thrower 10 are provided on the outside of the housing 2. The bucket elevator 9 communicates with the conveying terminal end of the sorting screw 7 inside the lower part thereof, has a grain hopper (not shown) on the outer side of the lower part, and in the upper part, the grain sizing device provided at the top position in the housing 2. It is possible to switch between a position for communicating with the preparation device 11 that also serves as a device and a grain discharging position for discharging the grains outside the machine. The immature grain discharge screwer 10 communicates with the conveyance end portion of the immature grain discharge screw 8 inside the lower part thereof. The immature grain discharge thrower 10 may be another type of fried machine, or the grain drying and preparing machine 1 may function even if omitted.

As shown in FIGS. 2 to 4, the preparation apparatus 11 is a stationary type special machine in which a cylinder 12 is horizontally mounted on a pedestal 11a, and a screw conveyor 13 is mounted on the cylinder 12. A hopper 14 is provided inside the cylinder 12, and a hopper 14 is provided at the start side of the conveyance of the cylinder 12, and a shutter 15 is provided at the bottom of the hopper 14. A rotary disk 17 is provided coaxially with the screw conveyor 13 by projecting outward from the end of the cylinder 12.
And a fixed disk 16 facing the rotary disk 17 and having a clearance C is provided on the outer periphery of the end portion of the cylinder 12. This fixed disk 1
6 may be configured to rotate with respect to the cylinder 12.

The rotary disk 17 is slidable with respect to the rotary shaft 18, and is moved via a pressure adjusting spring 19, a spring seat 20, and a moving screw 21 provided coaxially with the rotary shaft 18 to prepare for the grain. The pressure is adjusted and the lock nut 22 is used for locking. Further, at the end of the screw conveyor 13, a gap adjusting member 23 facing the rotating disk 17 and capable of being screwed with respect to the rotating shaft 18, is provided.
The clearance C is finely adjusted. When the clearance C is narrowed as shown in FIGS. 2 and 4, when grain is paddy, hulling is performed between the rotating disk 17 and the fixed disk 16, and in the case of soybean, grain polishing is performed. Done.

When the preparation apparatus 11 is incorporated in the grain drying and preparation machine 1, the hopper 14 and the shutter 15 are omitted,
It is desirable that the upper end of the bucket elevator (fried grain device) 9 is communicated with the transport start end of the cylinder 12 so that the clearance C can be automatically adjusted by remote control. At the end of the preparation device 11, a rice husk / dust discharge fan 24 is provided for sucking the husks, dust, etc. generated in the preparation device 11 and discharging them to the outside of the machine.

Next, the operation of the grain drying / preparing machine 1 configured as described above will be described. For example, when putting grains such as high-moisture paddy harvested with a combine harvester and high-moisture soybean harvested with a harvester into the grain drying and conditioning machine 1, first, the bucket elevator 9 and the preparation apparatus 11 are driven to drive the bucket elevator. The grain is fed to the grain hopper 9 for grain feeding, lifted by the bucket elevator 9, and the tempering unit 3 is passed through the brewing device 11 in the laid state in which the clearance C between the rotary disc 17 and the fixed disc 16 is greatly opened. Is fixed in a certain amount. When grain filling is completed, the heat source (burner) of the drying unit 4, the rotary valve 5, the sorting screw 6, the immature grain discharge screw 8, the bucket elevator 9, the immature grain discharge slower 10, the preparation device 11, the rice husk / dust, etc. All the discharge fans 24 and the like are driven to start the dry preparation work. At this time, the preparation device 11
In hulling, hulling was continued until the grain was dried to a certain degree.
The clearance C between the rotary disk 17 and the fixed disk 16 is widened so as not to perform grain polishing.

The grain stuck in the tempering section 3 is
As the rotary valve 5 rotates, the rotary valve 5 moves downward by a predetermined amount, and then passes through the drying section 4 and falls onto the sorting screw 6. When the grain passes through the drying section 4, it is exposed to hot air,
Water is taken away and it dries. In the sorting screw 6, the drying unit 4
While the grain dropped from the one side is sent to one side, immature grains, dust and the like are sorted by filtering through the sorting screen 7 and fall on the immature grain discharging screw 8. The grains sent to one side by the selection screw 6 are lifted by the bucket elevator 9 and fall into the tempering unit 3 via the preparation device 11, where they are temper-linked. By repeatedly moving in such a circulation path, the grain is gradually dried. The immature grain discharge screw 8 conveys the immature grain toward the immature grain discharge thrower 10 and discharges it to the outside of the machine by the immature grain discharge thrower 10.
Further, the dust generated in the preparation device 11 is sucked by the rice husk / dust discharge fan 24 and discharged to the outside of the machine.

When the grains have dried to a certain extent, the clearance C between the rotary disc 17 and the fixed disc 16 of the preparation device 11 is narrowed, and the preparation work such as grain hulling or grain polishing is performed. And the preparation device 11
The rice husks and dust generated in 1 are sucked by the rice husk / dust discharge fan 23 and discharged to the outside of the machine. The preparation work by the preparation device 11 is continuously performed together with the drying work and the sorting work, and when the grain is dried to a predetermined moisture content, the preparation / sorting work is also sufficiently performed. In addition, when the grain is paddy, the grain is hulled and becomes brown rice, so that the drying time is shortened. The grain that has been dried, sorted and prepared is discharged from the upper end of the bucket elevator 9 to the outside of the machine.

[0015]

As described above, according to the grain drying and preparing machine of the present invention, Since the grain preparation device is installed in the grain circulation path of the grain dryer that circulates and dry the grain, preparation work such as hulling, grain polishing, and sorting can be performed at the same time as drying the grain, and efficient drying preparation is possible. You can do the work. Also, if the grain is paddy, it will be hulled during the drying process.
Since it is dried in the state of brown rice, the drying time can be shortened. Further, the structure of the device is simplified, the number of parts is reduced, and the cost can be reduced.

.. The grain preparation device is equipped with a screw conveyor, and the transport start end side of the horizontally arranged cylinder is connected to the grain lifting device, and the rotary disc is provided coaxially with the screw conveyor by projecting outward from the transport end of the cylinder. Since the fixed disk is provided at the end of the cylinder so as to face the rotary disk, preparation operations such as hulling and grain polishing can be performed on the grain during the drying operation. ． Since the gap between the rotary disk and the fixed disk can be adjusted, the grain hulling operation, grain polishing operation, and grain moving and discharging operation can be selectively performed.

[Brief description of drawings]

FIG. 1 is a schematic vertical sectional view of an entire grain drying and preparing machine according to the present invention.

FIG. 2 is a schematic side sectional view of the grain preparation device of the present invention.

FIG. 3 is a perspective view supported by the same pedestal.

FIG. 4 is a side sectional view of the main part.

[Explanation of symbols]

 1 Grain Drying and Preparing Machine 2 Housing 3 Tempering Section 4 Drying Section 5 Rotary Valve 6 Sorting Screw 7 Sorting Screen 8 Immature Grain Discharging Screw 9 Bucket Elevator 10 Immature Grain Discharging Slower 11 Preparation Device 12 Cylinder 13 Screw Conveyor 14 Hopper 15 Shutter 16 Fixed Disk 17 Rotating Disc 18 Rotating Shaft 19 Pressure Adjusting Spring 20 Spring Seat 21 Moving Screw 22 Lock Nut 23 Gap Adjusting Member 24 Rice Husk / Dust Discharging Fan C Clearance

Claims (3)

[Claims] 1. A grain drying / preparing machine, characterized in that a grain preparing device is arranged in a grain circulation path of a grain dryer for drying grains while circulating them. 2. A grain conveyer is installed in the grain preparation device, and a conveying start end side of a horizontally arranged cylinder is connected to a grain raising device, and is projected outward from a conveying end end of the cylinder so as to be coaxial with the screw conveyer. 2. The grain drying and preparing machine according to claim 1, wherein a rotary disk is provided and a fixed disk is provided at the end of the cylinder so as to face the rotary disk. 3. The grain drying and preparing machine according to claim 2, wherein the gap between the rotary disc and the fixed disc can be adjusted.