JP2001050664A - Grain dryer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent dropping of a liquid fuel in a drying part by providing a fuel receiver for receiving the fuel discharged into a far infrared radiator due to an ignition mistake of a burner and dropped in the part at a lower side of the radiator. SOLUTION: If an ignition mistake of a burner 32 takes place so that a liquid fuel is not burned but discharged and stored in a far infrared radiator 38, the stored fuel is dropped from a mating part of lower side flanges 44, 44 of respective side radiator parts 40, 40 for forming the radiator 38 in a drying part 8. Thus, a fuel receiver 80 is provided at a lower side of the radiator 38, and the fuel dropped from the mating parts of the flanges 44, 44 of the parts 40, 40 is received by a fuel receiving part 82 of the receiver 80. Accordingly, dropping of the fuel in the drying part can be prevented to prevent a contamination of a grain in the drying part due to the fuel. The fuel discharged in the radiator due to the ignition mistake of the burner can be recycled.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grain dryer, and more particularly to a grain dryer capable of recovering liquid fuel discharged into a far-infrared ray radiator due to a burner ignition error and preventing contamination of grains in a drying section by the liquid fuel. Grain dryer.

[0002]

2. Description of the Related Art Grain dryers for drying grains such as rice and wheat are used for drying grains such as rice and barley in a paddy state before milling, and there are circulation type and flat type grain dryers. .

The circulation type grain dryer is provided with a storage section into which the grains are sequentially fed from the top, a drying section for drying the grains, and a grain collecting section for collecting the dried grains in the body of the dryer. While being guided from the storage unit to the lower-stage collecting unit via the middle-stage drying unit and returned to the upper-stage storage unit for circulation, the cereal is dried by hot air or far-infrared rays in the drying unit.

[0004] Such a grain dryer is disclosed in Japanese Unexamined Patent Publication No.
JP-A-14746, JP-A-9-113140,
There is one disclosed in JP-A-10-82586.

[0005] Japanese Patent Application Laid-Open No. 8-14746 discloses a storage tank provided with a far-infrared radiation chamber for radiating far-infrared radiation heat and hot air downward to a flowing grain and ejecting the same. is there. Japanese Unexamined Patent Publication No. Hei 9-113140 discloses that a radiator tube as a far-infrared radiator is provided in a hot air chamber, a burner is provided at one end of the radiator tube, and the other end of the radiator tube is opened into the hot air chamber. Things. Japanese Unexamined Patent Publication No. 10-82586 discloses a method in which a far-infrared radiator is provided to face a portion where a grain flows, and the far-infrared radiator is rotated so that a surface facing the flowing grain is turned. Things.

[0006]

In a grain dryer for drying grains by far-infrared rays, a burner that burns liquid fuel generates hot air, which heats a far-infrared radiator to emit far-infrared rays. Let the cereal dry.

[0007] However, in this grain dryer, when an ignition error occurs in the burner to which the liquid fuel is supplied, the liquid fuel is released into the far-infrared radiator without being burned,
There is a problem of accumulation.

[0008] For this reason, the grain dryer has a disadvantage that the accumulated liquid fuel falls into the drying section from the gap of the far-infrared radiator and adheres to the grain to contaminate it.

[0009]

In order to eliminate the above-mentioned disadvantages, the present invention provides an upper storage unit, a middle drying unit, and a lower collecting unit in a dryer body that is long in the front-rear direction. Providing a flow path extending in the front-rear direction by connecting the storage section and the grain collection section in the drying section, and providing a far-infrared radiation chamber extending in the front-rear direction adjacent to the flow path, outside the drying section. A burner is provided on the front side of the dryer main body and an exhaust fan is provided on the rear side of the dryer main body, and one end side is connected to the burner in the far-infrared radiation chamber and the other end side is located near the exhaust fan. In a grain dryer provided with a far-infrared radiator having a shape, a fuel receiver that receives liquid fuel that is emitted into the far-infrared radiator and falls into a drying unit due to a misfire of the burner is positioned below the far-infrared radiator. Established in And it features.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A circulation dryer according to the present invention has a fuel receiver provided below a far-infrared radiator with a liquid fuel which is discharged into a far-infrared radiator due to a misfire of a burner and falls into a drying section. Thus, the liquid fuel can be prevented from falling into the drying section.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 7 show an embodiment of the present invention. 5 to 7, reference numeral 2 denotes a circulation type grain dryer,
4 is a dryer main body, 6 is a storage section, 8 is a drying section, and 10 is a grain collecting section. In the grain dryer 2, the front plate 12, the rear plate 14, and the side plate 16 form a dryer body 4 that is long in the front-rear direction. In the dryer main body 4, a storage section 6 into which cereal is charged, a drying section 8 for drying cereal, and a grain collecting section 10 for collecting dried cereal are provided in order from the top.

In the grain dryer 2, a grain dryer 18 is provided on the front plate 12 side of the dryer body 4, and the grain dryer 18 is provided above the storage unit 6.
The upper conveying means 20 connected to the upper part is provided,
A lower conveying means 22 connected to a lower part of the grain raising machine 18 is provided below.

The grain dryer 2 drops the grains lifted by the grain-lifting machine 18 into the storage section 6 by the upper conveying means 20, and after drying in the drying section 8, collects the collected grains in the grain collecting section 10, and transfers the grains to the lower section. The circulating of conveying the material to the lower part of the graining machine 18 and raising it again by means 22 is repeated to dry the grain.

The drying section 8 has a storage section 6 and a grain collecting section 8.
Flow path 2 extending in the front-rear direction of the dryer body 4
4 and a far-infrared radiation chamber 26 extending in the front-rear direction of the dryer main body 4 adjacent to the flow path 24.

In this embodiment, two flow channels 24 separated by a gas-permeable ventilation member 28 made of a perforated plate, a net-like member or the like are provided symmetrically spaced apart in the width direction. Far-infrared radiation chamber 26 extending in the front-back direction between
And an exhaust chamber 30 extending in the front-rear direction is provided between each of the two flow passages 24 and the side plate 16 on the outside.

The grain dryer 2 has a gun type burner 32 for burning liquid fuel and generating hot air in front of the dryer main body 4 outside the drying section 8, and a rear side of the dryer main body 4 outside the dryer 8. Is provided with a blower 34 for sucking and discharging the hot air from the blower chamber 30. The burner 32 is attached to the front plate 12. The exhaust fan 34 is attached to the rear plate 14.

The burner 32 and the exhaust fan 34 are controlled by a control unit 36 attached to the front plate 12. Control unit 36
Controls the burner 32 and the air blower 34 to generate hot air for drying the grains and to discharge the hot air after drying, and to control the motors (see FIG. (Not shown) to circulate the grains.

The grain dryer 2 has a far-infrared radiation chamber 26
A substantially cylindrical far-infrared radiator 38, one end of which is connected to the burner 32 and the other end of which is located near the exhaust fan 34, is provided therein.

As shown in FIG. 1 to FIG. 4, the far-infrared radiator 38 has a pair of semi-cylindrical side radiator portions 40, 40 opposed to each other, and the upper side of each side radiator portion 40, 40. The flange portions 42 and the lower flange portions 44 are fixed together to form a substantially cylindrical shape having a radiator passage 46 therein.

The far-infrared radiator 38 is heated by a hot air flowing through the radiator passage 46 to a far-infrared radiation material such as a ceramic attached to the surface of each of the side radiator portions 40, 40 and emits far-infrared rays.

The far infrared radiator 38 has a burner 3 at one end.
2 is provided with a burner mounting portion 48 mounted on
The burner mounting portion 48 is mounted on the burner 32.
The burner mounting portion 48 is provided with a communication hole 50 through which hot air from the burner 32 flows. Far-infrared radiator 38
At the other end, a substantially conical cylindrical throttle portion 52 is provided and provided, and a throttle portion passage 54 is provided.

The diaphragm portion 52 has a substantially horizontal U curved upward.
One end side of the curved tube 56 having a cylindrical shape is connected and provided.
The curved tube 56 is formed into a substantially horizontal U-shaped cylindrical shape having a curved tube passage 58 therein by bending the other end thereof to be directed to one end of the far infrared radiator 38 above the far infrared radiator 38. Is done.

The other end of the curved tube 56 is connected to one end of a hot air tube 60. The hot air pipe 60 has a pair of semi-cylindrical hot air pipe sections 62, 62 disposed opposite each other, and the upper flange sections 64, 64 and the lower flange sections 66, 66 of the hot air pipe sections 62, 62. Is formed into a substantially cylindrical shape having a hot air tube passage 68 therein. The hot-air tube 60 is disposed in parallel above the far-infrared radiator 38, and opens the hot-air outlet 70 of the hot-air tube passage 68 near the burner mounting portion 48 at one end of the far-infrared radiator 38. Provided.

The upper part of the far infrared radiator 38 and the hot air tube 6
The lower part of 0 is connected in parallel by a connecting body 72. At the upper part of the hot air tube 60, a tube-side engaging body 76 having a reverse J-shaped cross section which is oriented in the longitudinal direction of the hot air tube 60 is attached and provided by a mounting body 74. The tube-side engaging body 76 is slidably engaged with a main-body-side engaging body 78 having a J-shaped cross section, which is attached in the far-infrared radiation chamber 26 of the drying unit 8 so as to be oriented in the front-rear direction. Thus, the far-infrared radiator 38
The drying section 8 is formed by the tube side engagement body 76 and the main body side engagement body 78.
Can be inserted into and pulled out of the far-infrared radiation chamber 26 from an opening (not shown) formed in the front plate 12.

The grain dryer 2 has a far infrared radiator 38
A fuel receiver 80 is provided below the fuel cell. Fuel receiver 80
Receives the liquid fuel released into the far-infrared radiator 38 due to a misfire of the burner 32 and falling into the drying unit 8.

The fuel receiving member 80 is formed in a V-shaped cross section, has a fuel receiving portion 82 therein, and is disposed so as to be directed in the longitudinal direction of the far-infrared radiator 38.
It is attached to the lower side of the far-infrared radiator 38 at an angle θ with respect to the horizontal line L so as to descend from the upstream end 80a on the side to the downstream end 80b on the burner 32 side.

The fuel receiver 80 is provided at the downstream end on the burner 32 side with a discharge member 84 for discharging the liquid fuel out of the dryer main body 4.
Is provided. The discharge body 84 is fixed to the rear side of the burner mounting portion 48, and the fuel discharge space 8 is provided between the discharge body 84 and the burner mounting portion 48.
6 are formed. A fuel discharge opening 88 is provided below the fuel discharge space 86.

Next, the operation will be described.

When the grain dryer 2 starts operation, a motor (not shown) is driven by the control unit 36, and the grain is dried from the storage unit 6 in the upper stage through the drying unit 8 in the middle stage and the grain collecting unit 1 in the lower stage.
After leading to 0, lift again and circulate.

The grain dryer 2 ignites and burns the burner 32 by the control unit 36 to generate hot air during the circulation of the grain, and the hot air flows through the radiator passage 46 of the far-infrared radiator 38 so that far infrared rays are emitted. Irradiate to dry the cereal in the flow path 24. The hot air that has heated the far-infrared radiator 38 is:
The air flows into the far-infrared radiation chamber 26 from the curved pipe passage 58 of the curved pipe 56 through the hot air pipe passage 68 of the hot air pipe 60, passes through the flow path 24 by the suction force of the exhaust fan 34, and enters the exhaust chamber 30. The grains in the flow path 24 are dried and discharged to the outside by the blower 34.

As a result, the grain dryer 2 dries the grains with hot air and far-infrared rays in the drying section 8 while circulating through the storage section 6, the drying section 8 and the grain collecting section 10.

The grain dryer 2 has a burner 32 to which liquid fuel is supplied. The grain dryer 2 has a burner 3
In the event that an ignition error occurs in the liquid fuel 2 and the liquid fuel is released and accumulated in the far-infrared radiator 38 without being burned, the accumulated liquid fuel is used to form the far-infrared radiator 38. The lower part 40 may fall into the drying part 8 from the joint of the lower flange parts 44.

The grain dryer 2 has a far infrared radiator 38
Of the fuel receiving member 80 of the fuel receiving member 80, the liquid fuel falling from the joint portion of the lower flange portions 44 of the respective radiator portions 40 is provided. The liquid fuel can be prevented from falling into the drying unit 8.

For this reason, the grain dryer 2 has a burner 3
The liquid fuel released into the far-infrared radiator 38 due to the ignition mistake 2 can be recovered, and the contamination of the grains in the drying unit 8 by the liquid fuel can be prevented.

The fuel receiver 80 is provided below the far-infrared radiator 38 so as to be inclined from the upstream end 80a on the exhaust fan 34 side to the downstream end 80b on the burner 32 side. ing. At the downstream end of the fuel receiver 80 on the burner 32 side, a discharge member 82 for discharging the liquid fuel to the outside of the dryer main body 4 is provided.

Thus, the grain dryer 2 transfers the fuel received by the fuel receiver 80 to the fuel discharge space 86 of the discharger 84.
To the outside of the dryer main body 2 from the lower fuel discharge opening 88.

For this reason, the grain dryer 2 has a burner 3
The liquid fuel released into the far-infrared radiator due to the ignition mistake of No. 2 can be collected and reused, and the liquid fuel can be effectively used.

The far-infrared radiator 38 is provided with a hot air tube 60.
The tube-side engaging body 76 having an inverted J-shaped cross section at the top of the
Is slidably engaged with the main body-side engaging body 78 having a J-shaped cross section, so that it can be inserted into and pulled out of the far-infrared chamber 26 together with the fuel receiver 80, thereby improving maintainability. be able to.

It should be noted that the present invention is not limited to the above-described embodiment, and various modifications can be made. For example,
The grain dryer 2 shown in FIGS. 8 and 9 is formed in a V-shaped cross section, has a fuel receiving portion 82 therein, and has a burner below the far-infrared radiator 38 from an upstream end 80 a on the exhaust fan 34 side. A fuel receiver 80 is provided which is mounted to be inclined so as to descend toward the downstream end 80b on the side of the fuel cell 32. The fuel receiver 82 is attached to the downstream end 80b of the fuel receiver 80 on the burner 32 side by the mounting portion 48 for the burner. It is provided so as to be exposed from the lower end, and is provided outside the dryer main body 4.

Thus, the grain dryer 2 can collect and reuse the liquid fuel that is discharged into the far-infrared radiator 38 due to an erroneous ignition of the burner 32 and does not require the discharger 84. The cost can be reduced by reducing the number of parts.

[0041]

As described above, the circulation type dryer according to the present invention can receive the liquid fuel emitted into the far-infrared ray radiating body due to the misfire of the burner and falling into the drying section by the fuel receiving body. The liquid fuel can be prevented from dropping on the surface.

For this reason, this grain dryer can collect the liquid fuel released into the far-infrared ray radiator due to an ignition mistake of the burner, and can prevent contamination of the grain in the drying section by the liquid fuel.

[Brief description of the drawings]

FIG. 1 is a side view of a far-infrared radiator of a grain dryer showing an embodiment of the present invention.

FIG. 2 is a front view of a far-infrared radiator.

FIG. 3 is a sectional view taken along line 3-3 in FIG. 1;

FIG. 4 is a sectional view taken along line 4-4 in FIG. 1;

FIG. 5 is a plan view of the grain dryer.

FIG. 6 is a partially broken side view of the grain dryer.

FIG. 7 is a partially cutaway front view of the grain dryer.

FIG. 8 is a side view of a far-infrared radiator showing another embodiment of the present invention.

FIG. 9 is a front view of a far-infrared radiator.

[Explanation of symbols]

 2 Grain dryer 4 Dryer body 6 Storage unit 8 Drying unit 10 Grain collecting unit 24 Flowing passage 26 Far-infrared radiation room 30 Ventilation room 32 Burner 34 Ventilator 38 Far-infrared radiation body 56 Curved tube 60 Hot air tube 80 Fuel receiver body

Claims (4)

[Claims] 1. An upper storage unit, a middle drying unit, and a lower grain collection unit are provided in a dryer body that is long in the front-rear direction, and the storage unit and the collection unit are connected to each other in the drying unit. And a far-infrared radiation chamber extending in the front-rear direction is provided adjacent to the flow path, a burner is provided on the front side of the dryer body outside the drying unit, and the discharge section is discharged on the rear side of the dryer body. In a grain dryer in which a fan is provided and one end of which is connected to the burner in the far-infrared radiation chamber and the other end of which is provided with a substantially cylindrical far-infrared radiator positioned near the exhaust fan, the burner is ignited. A grain dryer, wherein a fuel receiver for receiving liquid fuel that is released into the far-infrared radiator due to a mistake and falls into a drying unit is provided below the far-infrared radiator. 2. The fuel receiver according to claim 1, wherein the fuel receiver is provided below the far-infrared radiator so as to descend from an upstream end on the exhaust fan side to a downstream end on the burner side. The grain dryer according to claim 1. 3. The grain dryer according to claim 2, wherein the fuel receiver is provided with a discharge body at a downstream end on the burner side for discharging the liquid fuel out of the dryer main body. 4. The grain dryer according to claim 2, wherein the fuel receiver is provided such that a downstream end on the burner side is located outside the dryer main body.