JP2002054877A - Method of drying grain by grain drier equipped with far infrared ray radiator, and grain drier equipped with far infrared ray radiator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To quicken the drying and improve the drying efficiency, by arranging the constitution so that the quantity of far infrared ray to be applied to the circulating grain, in a grain drier equipped with a far infrared ray radiator. SOLUTION: In a grain drier which is equipped with a far infrared ray radiator, the upper halves of the openings 3a and 3a at each bottom of a grain down flow paths 3 and 3 are opened toward the topside of a rotating shutter 10, whereby it is put in such condition that the grain having passed the grain down flow paths 3 and 3 overflows to the topside of the rotating shutter 10 and exists always as a grain layer G accumulated in on the top of the rotating shutter 10, and that it is let out in order by the rotating shutter 10 from the down side of the grain layer G, and it is arranged such that the far infrared ray generated by the far infrared ray radiator 7 arranged within a hot blast chamber 4 is applied directly at all times to this grain layer G.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grain in a drying section, wherein grains placed in and accommodated in a grain accommodating room in the machine are arranged below the grain accommodating room and installed in the machine. It is passed through the downflow path to the bottom of the fuselage, taken out of the fuselage and re-entered into the grain compartment to circulate, and the circulated grains pass through the grain downflow path. Among the grain dryers that give heat and dry while heating, the supply of heat to the grains is generated by the operation of the burner device and the amount of heat of the dry air by the combustion hot air that is sent to the hot air chamber, The present invention relates to an improvement in a grain dryer of a form which is performed by both the far-infrared radiation generated and radiated by an arranged far-infrared ray generator.

[0002]

2. Description of the Related Art A grain dryer A of the above-mentioned type is, for example, as shown in FIGS.
On the upper half side of the body 1 assembled in a box shape by a panel made of a metal plate such as an iron plate, a grain accommodating chamber 2 for accommodating grains is provided. The grain flow passages 3, which are formed by arranging the air-permeable partitions 30 and 30 'in parallel at a predetermined interval, are arranged in a pair on the left and right so as to face each other. Each upper side of
The bottom wall 20 of the above-mentioned grain storage chamber 2 is communicated with the lower openings of the funnels 21, 21 installed in parallel on the left and right, and a pair of the grain flow passages 3, 3 and the grain storage are connected. A hot air chamber 4 surrounded by a pair of funnels 21 of a bottom wall 20 of the chamber 2
Are installed in the left and right central portions of the lower half side of the body 1, and air exhaust chambers 5.5 are respectively installed in portions outside each of the pair of grain flow passages 3.

[0003] The above-mentioned grain downflow path 3 provided in a pair on the left and right
3, the lower ends thereof are inclined toward a drum-shaped rotary shutter 10 that is disposed at the left and right central portions of the bottom of the fuselage 1 and mounted along the front-rear direction of the fuselage 1. The opening 3a is disposed at a position facing the outer surface of the peripheral wall 10b so as to be closed by the peripheral wall 10b of the rotary shutter 10, whereby the rotary shutter 10 is driven to rotate and the peripheral surface thereof is rotated. Opening 1 in the form of a slit
Each time 0a faces the opening 3a at the lower end of the grain flow path 3,3, the opening 1a from the inside of the grain flow path 3,3.
0a, the kernel is received in the lumen of the rotary shutter 10, and when the rotary shutter 10 rotates and the opening 10a is positioned below, the received kernel is allowed to flow downward. To

[0004] A funnel-shaped grain collecting gutter 11 is provided at the bottom of the machine body 1 below the rotary shutter 10, and a lower conveyor 12 for carrying out grains outside the machine is mounted on a trough of the funnel. The end side in the transport direction is protruded to the front side of the body 1, and the protruding end side is communicated with the lower end side of the lifting tower 60 of the elevator 6 erected on the front side of the body 1. The discharge cylinder portion 61 on the upper end side of the tower 60 communicates with the starting end side in the transport direction of the upper conveyor 13 for grain filling mounted on the top of the body 1, and is thereby stored in the grain storage chamber 2. The crushed grains flow and circulate in the order of the rotary shutter 10 → the lower conveyor 12 → the elevator 6 → the upper conveyor 13 from the grain downflow path 3.

[0005] In the hot air chamber 4, a far-infrared ray radiator 7 a is formed in a cylindrical shape of the far-infrared ray radiator 7, and
At one end thereof, a hot air discharge port 80 of a burner device 8 mounted on the outer surface of the machine wall 1a on the front side of the machine body 1 is connected. Cylinder 7b
Is bent in a U-shape, and the front end is folded back toward the front side of the body 1 on which the above-described burner device 8 is mounted, and the open end 7c thereof is attached to the front side machine wall 1a. The hot air chamber 4 is opened at a position facing the outside air introduction part 40.

The burner device 8, which is a combustion device for supplying a heat source for operating the far-infrared radiator 7, is usually a gun that atomizes fuel oil, ignites it with a plug, and blows out combustion gas from a flame-discharge cylinder 8a. A type of burner device is used.

F: The hot air fed into the hot air chamber 4 by the burner device 8 is diluted with the outside air taken in from the outside air introducing section 40 to obtain a drying air of a predetermined temperature, and the drying air is passed from the hot air chamber 4 to the grain downflow path. A suction-type blower that guides the air to the air exhaust chamber 5 by passing the air through the air chamber 3.
A suction side is connected to a chamber-shaped exhaust duct 50 which is provided on the rear side of the body 1 in communication with the exhaust pipe 5 and is mounted on the rear side thereof. 51 are connected.

[0008] Thus, while the grains are flowing down the grain flow passages 3, the drying wind supplied from the hot air chamber 4 and the far-infrared radiator 7 are fed to the circulating grains.
The drying is performed by being exposed to the far-infrared ray generated in the above.

[0009]

The grain dryer A of the above-described embodiment is provided with a far-infrared ray generator 7 which is operated in the hot air chamber 4 by the calorific value of the burner device 8 blown into the hot air chamber 4 and burners. Since both the hot air from the device 8 and the radiant heat of the far-infrared ray from the far-infrared ray generator 7 are supplied to the grain, the drying efficiency is improved, and the drying time for drying the grain to the finished moisture value is shortened. Although it is supposed to be obtained, there is a problem that the drying efficiency is not so increased and the drying time is not shortened.

The present invention has been made to solve this problem. By increasing the amount of far-infrared rays that can be applied to circulating and flowing grains, drying is accelerated and drying efficiency is improved. The purpose is to provide a new means for doing so.

[0011]

According to the present invention, as a means for achieving the above-mentioned object, a grain storage chamber 2 is provided in the upper half of the body 1 and the lower half of the body 1 is provided. On the side, a drum-shaped rotary shutter disposed at a position where the bottom wall 20 of the grain storage chamber 2, the left and right grain flow passages 3 continuous with the bottom wall 20, and the openings 3 a 3 a at their lower ends abut against each other. 10, a hot air chamber 4 surrounded by a wind tunnel is provided. In the hot air chamber 4, a far-infrared ray radiator 7 that emits far-infrared rays by burning hot air blown by a burner device 8 is provided. The grains contained in the hot air chamber 4 were generated by the burner device 8 while being circulated so as to flow back through the grain flow passages 3 and 3 again to the grain storage chamber 2. The combustion heat is blown into the grains flowing down the grain downflow passages 3, 3 and the combustion heat is applied to the grains. In grain drying method hurl the radiation heat of heat and far infrared rays by, rotating shutter 10 half side over the opening 3a-3a of each bottom end of the grain flow-down path 3.3
, The grains flowing through the grain flow-down passages 3, 3 overflow to the upper face side of the rotary shutter 10 and are constantly formed as a grain layer G deposited on the upper face of the rotary shutter 10. It exists and is in a state where it is sequentially fed out from the lower surface side of the grain layer G by the rotary shutter 10, and the far infrared rays generated by the far infrared ray radiator 7 disposed in the hot air chamber 4 with respect to the grain layer G are A grain drying method using a grain dryer equipped with a far-infrared ray radiator characterized by always being directly immersed is proposed, and a grain storage room 2 is provided on the upper half side of the body 1, In the lower half of the body 1, the bottom wall 20 of the grain storage chamber 2, the left and right grain flow paths 3.3 connected to the bottom wall 20, and the openings 3a at the lower ends thereof are abutted against each other. The hot air chamber 4 surrounded by a drum-shaped rotary shutter In the hot air chamber 4, a far-infrared ray radiator 7 that emits far-infrared rays by burning hot air blown by a burner device 8 is disposed, and in the grain drying, left and right grain flow paths 3 are formed respectively. A pair of partition walls 3 inside and outside
0, 30 ', 30, 30', the lower end side of each inner partition wall 30, 30 is rounded up shortly, and the upper half side of the opening 3a, 3a of the grain flow passage 3, 3, is placed in the hot air chamber 4 The kernels, which are opened to the bottom of the rotary shutter 10, flow down the kernel downflow paths 3, 3, and overflow onto the upper surface of the rotary shutter 10.
A grain dryer equipped with a far-infrared ray radiator, wherein a grain layer G deposited on the upper surface of the grain is formed.

This means of the present invention has been studied by examining a conventional means in which the effect of incorporating the far-infrared ray generator is not so improved. The hot air chamber 4 incorporating the far-infrared ray generator 7 is shown in FIG. As described above, the funnels 21 and 21 of the bottom wall 20 of the grain storage chamber 2 and the pair of partition walls 30 and 30 ′ and 30 and 30 that form the pair of left and right grain downflow paths 3 and 3 are arranged in parallel. Each of the inner partitions 30
An empty room surrounded by 30 and the peripheral wall 10b of the drum-shaped rotary shutter 10, and the far infrared rays generated by the far infrared ray radiator 7 disposed in the hot air chamber 4 is used for the grain container. 2 bottom wall 20 and partition wall 30.3 of grain downflow channel 3.3
When the rotary shutter 10 rotates and the slit-shaped opening 10a opened in the peripheral wall 10b comes to a position exposed in the hot air chamber 4, The far infrared rays only reach the grains flowing into the rotary shutter 10 through the openings 10a, and the amount of far infrared rays exposed to the grains is significantly limited. From this, as shown in FIG. 4, among the opposed partition walls 30, 30 ′, 30, 30 ′ of the respective left and right grain downflow paths 3, 3, the inner partition walls 30, 30 ′ are formed. By shortening the upper and lower lengths so as to cut off the lower end side, the openings 3a at the lower ends of the respective grain flow paths 3, 3 are also opened to the bottom of the hot air chamber 4, Some of the grains flowing down the grain downflow path 3 It overflows into the chamber 4, rotating shutter 1
When the swelling is slightly raised on the upper surface side of the peripheral wall 10b, the far infrared rays from the far infrared ray generator 7 are directly radiated to the grains overflowing on the rotary shutter 10, so that the grains can be bathed. This is because the amount of far infrared rays is significantly increased. And it is due to the fact that the result that the drying is faster and the drying efficiency is improved is obtained.
As means for achieving the above object, the above means is proposed.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the means of the present invention, the structure of a grain dryer A itself is the same as that of the conventional means shown in FIGS. 1 and 2, as shown in FIGS. May be configured.

5 and 6, reference numeral 1 denotes an airframe assembled in a box shape by a panel made of a metal plate, 2 denotes a grain accommodating room mounted on an upper half side of the airframe 1, 20 denotes a bottom wall thereof,
1 and 21 are funnels formed on the bottom wall 20 and 3.3 are upper and lower sides of the funnels 21 and 21 connected to the upper end side, and a pair of left and right sides are arranged in parallel in the lower half of the body 1. The installed grain flow passages, 30 · 30 ′ and 30 · 30 ′, are a pair of air-permeable partition walls 3a · 3a opposed to each other at a predetermined interval so as to form the grain flow passages 3,3, respectively. 3a are opening portions on the lower end side of the grain flow passages 3, 3, and 10 are arranged at the left and right central portions of the bottom of the body 1 where the openings 3a, 3a are abutted. A drum-shaped rotary shutter mounted in the front-rear direction, 10a is a slit-shaped opening formed in a peripheral wall 10b thereof, and 11 is mounted on a bottom portion in the body 1 so as to collect grains discharged from the rotary shutter 10. And the grain collecting gutter 12 is a grain discharging machine mounted on the body 1 arranged in the valley of the grain collecting gutter 11. Lower conveyor, 12a is the end of the conveying direction of the lower conveyor 12 which projects on the front side of the machine body 1, 6 elevator erected on the front side of the machine body 1, 6
Numeral 0 denotes the hoisting tower, 6a denotes a bucket conveyor stored in the hoisting tower 60, 60a denotes a communication gutter for communicating the end portion 12a of the lower conveyor 12 with the lower part of the hoisting tower 60, 61
Is a discharge tube installed at the upper part of the lifting tower 60, 62 is a discharge gutter installed at the bottom of the discharge tube 61 so as to communicate with the upper part, 13
Is the starting end of the discharge cylinder 61 in the conveying direction,
The upper conveyor for grain filling mounted on the top of the machine body 1 by being freely connected to
An equalizer mounted on the upper part of the body 1 so as to equalize and discharge the grains discharged from the end portion of the body 1 into the body 1. The hot air chambers 5.5 provided in the left and right central portions of the lower half side of the body 1 so as to be surrounded by the passages 3 and the rotary shutter 10 are provided with the left and right kernel flow passages 3.3 respectively. The exhaust chambers 50 arranged on the outer side and disposed on the left and right sides of the lower half of the fuselage 1 are provided on the rear side of the fuselage 1 by communicating with the exhaust chambers 5.5. A chamber-shaped exhaust duct;
0, a suction type blower assembled and supported on the rear side of the exhaust duct 50, 51 is an exhaust pipe connected to the discharge side of the blower f, and 7 is a distant air installed in the hot air chamber 4 described above. The infrared radiator 8 is a burner device which is a combustion device for supplying a heat source for operating the far infrared radiator 7.

A far-infrared radiator 7 disposed in the hot air chamber 4
Can emit far-infrared rays by heating,
Although any form may be used, in the embodiment, for example, a cylindrical body 7a is formed from a material that emits far-infrared rays having a wavelength of 20 μ or more by heating with hot air, and a shaft is formed in a bore of the cylindrical body 7a. An operation of emitting far-infrared rays is performed by blowing a combustion device burned by the burner device 8 from one end of the direction as a heat source.

Further, in order to effectively use the combustion hot air of the burner device 8 used as a heat source for radiating far-infrared rays as the heat of the dry air to be applied to the grains after it is used as a heat source, a cylindrical shape is used. Far infrared radiator 7a
Is connected to a small-diameter exhaust pipe 7b formed of the same material as that of the cylindrical far-infrared radiator 7a, bent and bent toward the front side of the body 1, and With the open end 7c at the front end facing the outside air introduction section opened at the portion of the front wall 1a of the body 1 which is the front wall of the hot air chamber 4, the hot air chamber 4 is operated by the blower f. When the hot air in the inside is sucked into the exhaust air chambers 5, the combustion hot air discharged from the opening 7c is mixed and diluted with the external air taken in from the external air introduction part 40, and is used as dry air at a predetermined temperature. ing.

The inner partition walls 30, 30 facing the hot air chamber 4 among the pair of partition walls 30, 30 ', 30, 30' of the left and right grain flow paths 3, 3, respectively, are shown in FIG. As shown in FIG. 5 and FIG. 6, openings 3a, 3a formed at the lower ends of the respective grain flow passages 3, 3 by shortening the upper and lower lengths so that the lower ends thereof are rounded up, Is opened to the bottom of the hot air chamber 4 as well.

This means that a part of the grains flowing down the grain flow-down passages 3.3 is made to pass through the opening 3 at the lower end of the grain flow-down paths 3.3.
a, 3a, overflows into the hot air chamber 4, and is deposited so as to slightly rise on the upper surface side of the rotary shutter 10, as shown in FIG. By flowing into the lumen of the opening 10a and discharging toward the lower conveyor 12 below, the circulating kernels are placed at the bottom of the hot air chamber 4
This is because it exists as a grain layer G directly receiving the far-infrared rays emitted from the far-infrared ray radiator 7 disposed therein, and circulates through the state.

At this time, the grain layer G which is deposited so as to swell on the upper surface side of the rotary shutter 10 and exists at the bottom of the hot air chamber 4 is shown in FIG.
Is rotated alternately by one rotation clockwise and counterclockwise (usually controlled to rotate in this manner).
From the state where the opening 10a opened in the peripheral wall 10b is located below and the lumen is emptied, first, it is rotated clockwise, the opening 10a is turned sideways, and the opening of the left grain downflow channel 3 is opened. 3a, the grain is received in the lumen from there, and further, by rotating, the opening 10a faces upward and the lower side of the grain layer G deposited on the upper surface of the rotary shutter 10 Facing the opening 3a of the right grain downflow path 3 while receiving the grain from, receiving the grain therefrom, and further rotating the opening 10a downward to release the grain received in the lumen. Then, by rotating in the opposite direction from this state and performing the same operation, the rotary shutter 10 deposits in a state of being sequentially taken in from the lower layer side.
On the upper surface side of the rotary shutter 10, the far-infrared rays radiated from the far-infrared ray radiator 7 in the hot air chamber 4 are deposited so as to directly receive the far-infrared rays. It is desirable that the amount is set to such an extent that the particles are taken in from the lower layer side by the opening 10a of the rotating shutter 10 to be covered with newly overflowing grains and replaced.

For this reason, in order for the grains to overflow from the grain flow passages 3.3 to the bottom of the hot air chamber 4, the grain flow passages 3.
3 each forming a pair of partition walls 30 30 ′.
The inner partition walls 30 and 30 facing the hot air chamber 4 of the 30 and 30 ′ are positioned at the height positions of the lower edges 30 a and 30 a so that the amount of spilled granules satisfies the above-described condition. The setting is made based on experience values. To facilitate this setting, as shown in FIG.
0 indicates that the lower edge 30a of the rotary shutter 10
The upper and lower lengths are set to be short so as to occupy a position far above the peripheral wall 10b, and auxiliary partition walls w are slidably connected to the upper and lower sides, respectively, and their extending lengths downward. By adjusting the extension length of the auxiliary partition walls ww, the lower end edges 30a of the inner partition walls 30 substantially become the opening edges 3a. Auxiliary partition wall ww forming the upper edge of 3a
It is effective to set the height position of the lower end edge y · y as desired.

[0021]

As described above, the grain dryer equipped with the far-infrared ray radiator according to the present invention is characterized in that the grains flowing down the grain downflow passages 3 surrounding the left and right sides of the hot air chamber 4 are: Each of the lower ends of the openings 3a, 3a overflows from the upper half side of the rotary shutter 10 to the upper surface side of the rotary shutter 10 and always exists as a grain layer G deposited on the upper surface of the rotary shutter 10, and The grain layer G is sequentially fed out by the opening 10a of the rotary shutter 10 that rotates from the lower surface side thereof,
Since the grains are switched to the newly overflowing grains, the hot air chamber 4 surrounded by the bottom wall 20 of the grain storage chamber 2, the left and right grain flow paths 3.3 and the rotary shutter 10.
There is always a grain layer G exposed to the inside of the hot-air chamber 4 at the bottom of the far-infrared ray radiator 7 disposed in the hot-air chamber 4.
, The amount of far-infrared rays circulated to the circulating grains is increased, and the drying of the grains is accelerated to improve the drying efficiency.

[Brief description of the drawings]

FIG. 1 is a longitudinal side view of a grain dryer equipped with a conventional far-infrared radiator.

FIG. 2 is a vertical sectional front view of the same.

FIG. 3 is an enlarged longitudinal sectional front view of a main part of the above.

FIG. 4 is an explanatory view of the means of the present invention.

FIG. 5 is a longitudinal side view of a grain dryer equipped with a far-infrared radiator for implementing the means of the present invention.

FIG. 6 is a vertical sectional front view of the same.

FIG. 7 is a longitudinal sectional front view of a main part of another embodiment of the above.

[Explanation of symbols]

A: grain dryer, G: grain layer, f: suction blower, w
... Auxiliary partition wall, y ... Bottom edge, 1 ... Machine, 1a ... Machine wall (front wall), 10 ... Rotary shutter, 10a ... Opening, 10b ... Peripheral wall, 11 ... Gathering gutter, 12 ... Lower conveyor, 12a ... Terminal part , 13: Upper conveyor, 14: Equalizer, 2: Grain storage room, 20: Bottom wall, 21: Funnel part, 3: Grain flow down path, 3a
... opening, 30/30 '... partition, 30a ... lower edge, 4 ...
Hot air chamber, 40 ... outside air introduction part, 5 ... exhaust air chamber, 50 ... exhaust air duct, 51 ... exhaust pipe, 6 ... elevator, 6a ... bucket conveyor, 60 ... grain tower, 60a ... communication gutter, 61 ... discharge Cylinder part, 62 ... take-out gutter, 7 ... far-infrared ray radiator, 7a ... far-infrared ray radiator, 7b ... exhaust pipe, 7c ... open end, 8 ... burner device, 8a ... flame discharge pipe, 80 ... hot air discharge port.

Continued on front page F term (reference) 3L113 AA07 AB03 AC04 AC35 AC45 AC46 AC48 AC49 AC51 AC54 AC63 AC67 AC73 AC74 AC79 BA03 CB03 CB22 CB24 CB33 CB34 DA02 DA10

Claims (3)

[Claims] 1. A grain storage chamber 2 is provided in the upper half of the machine body 1, and a bottom wall 20 of the grain storage chamber 2 and left and right grain flow passages 3 continuous therewith are provided in the lower half of the machine body 1. A hot air chamber 4 surrounded by a wind tunnel is provided by a rotary shutter 10 arranged at a position where the openings 3a at the lower ends thereof abut against each other. A far-infrared ray radiator 7 that emits far-infrared rays by burning hot air blown by the burner device 8 is provided, and the grains stored in the grain storage chamber 2 are
The hot air generated by the burner device 8 is blown into the far-infrared ray radiator 7 in the hot air chamber 4 while circulating back through the grain downflow passages 3 and returning to the grain accommodating chamber 2 again. In the grain drying method in which the heat flowing from the combustion air and the radiant heat of far-infrared rays are applied to the grains flowing through the passages 3,3, the upper half side of the opening 3a, 3a at the lower end of each of the grain downflow passages 3,3. Is opened to the upper surface side of the rotary shutter 10, and the grains flowing through the grain flow-down passages 3, overflow to the upper surface side of the rotary shutter 10, and accumulate on the upper surface of the rotary shutter 10. It is always present as a layer G, and is sequentially fed out from the lower surface side of the grain layer G by the rotary shutter 10, and is generated by the far-infrared radiator 7 provided in the hot air chamber 4 for the grain layer G. The feature is that you can always receive the far infrared rays directly Grain drying process with infrared radiation machine equipped to grain Dryer. 2. A grain storage chamber 2 is provided in the upper half of the body 1 and a bottom wall 20 of the grain storage chamber 2 and left and right grain flow passages continuous with the bottom wall 20 in the lower half of the body 1. A hot air chamber 4 surrounded by a wind tunnel is provided by the rotary shutter 10 provided at the position where the openings 3a at the lower ends of the drums 3 and 3 abut against each other. In the grain drying, in which a far-infrared ray radiator 7 that emits far-infrared rays by burning hot air blown by the burner device 8 is provided, a pair of inner and outer partition walls 30.
Each inner partition wall 3 of 0 ', 30 and 30'
The lower end of 0.30 is rounded up and the grain flow down 3.3
The upper half side of the opening 3a is opened to the bottom of the hot air chamber 4 so that the grains flowing down the grain downflow path 3.3 overflow to the upper surface side of the rotary shutter 10 and the rotary shutter 10 A grain dryer equipped with a far-infrared ray radiator, wherein a grain layer G deposited on an upper surface is formed. 3. Inside and outside of a pair of partition walls 30, 30 ′, 30, 30 ′ forming left and right grain flow passages 3, 3, respectively, the inner partition walls 30, 30 are rounded up and shortened. At the lower end side, auxiliary partition walls ww extending downward are provided so as to be vertically adjustable, respectively, and openings 3a, 3a are formed by lower end edges y, y of the auxiliary partition walls ww.
A grain dryer equipped with the far-infrared ray radiator according to claim 2, wherein the upper edge is formed.