JPS6310471Y2 - - Google Patents

Description

[Detailed description of the invention] This invention enables efficient drying of the grains while eliminating waste of drying hot air even when the grains are stored in the main body of the dryer in a full state or in fractional quantities. The present invention relates to a grain dryer that can dry grains.

A hot air blowing chamber and a dust exhausting chamber are provided at opposing positions on both sides of the lower half of the dryer body, which is formed long in the front and back, and one end is connected to the hot air blowing chamber between the hot air blowing chamber and the dust exhausting chamber. A plurality of hot air chambers and a ventilation chamber whose one end is connected to a dust exhaust air chamber are alternately installed so that a paddy flow path is formed between the chambers, and the hot air chambers, the ventilation chambers, and the paddy flow path are constructed. By increasing the number of drying hot air and shortening their length at the same time, the loss of drying hot air is reduced as much as possible, and even with the same amount of drying hot air, a large amount of drying hot air is directed against the grain, improving drying efficiency. A grain dryer designed to
It was developed as described in Japanese Patent Application Laid-open No. 59-41775.

By the way, in the above-mentioned grain dryer, the drying hot air for drying the grain is generated by a single hot air generator installed on the side of the hot air blowing chamber.

Therefore, not only when a full amount of grain is stored in the same dryer body, but even when a fractional amount of grain is stored in the same dryer body, each grain has the required amount for drying. Since it is not possible to obtain good dry grain unless dry hot air with a certain air volume and temperature is applied, one hot air generator must be operated under the same conditions regardless of the amount of grain stored. As a result, when drying a fractional amount of grain, more fuel consumption is required than when drying a full amount of grain, resulting in extremely uneconomical results.

Therefore, in order to solve the drawbacks of the grain dryer, the present invention divides the hot air blowing chamber into two, and creates a separate hot air generator that can generate enough dry hot air to dry the grains in each of the two divided chambers. The discharge side of the machine is facing, and when drying a full load of grain, two hot air generators are operated, and when drying a fractional amount of grain, the side where the fractional amount of grain is stored is operated. To provide a grain dryer capable of efficiently carrying out drying work while saving fuel consumption by operating only a hot air generator in a hot air blowing room.

In view of the above, in order to achieve the above object, the present invention has a structure in which the hot air blowing chamber is partitioned into a front hot air blowing chamber and a rear hot air blowing chamber by a partition wall, and a burner is installed in the front hot air blowing chamber. The grain dryer is characterized in that the discharge side of the main hot air generator housing the burner faces the discharge side of the main hot air generator housing the burner, and the discharge side of the auxiliary hot air generator housing the burner faces the rear hot air blowing chamber. According to this grain dryer, when the main body of the dryer is fully loaded with grains, the main and auxiliary hot air generators are simultaneously operated to efficiently cover the stored grains with the generated dry hot air. When a fractional amount of grain is stored on one side of the dryer body, the main hot air generator is operated, the auxiliary hot air generator is stopped, and the main hot air generator is used to start the drying process. It is possible to efficiently dry fractional grains using the blown drying hot air while saving fuel consumption.
This has the effect of eliminating the blowing action of dry hot air from a hot air chamber located at a position where no grain is stored.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A grain dryer according to the present invention will be described below with reference to a preferred embodiment shown in the accompanying drawings.

In the drawings, reference numeral 1 denotes a dryer main body having a rectangular cylindrical shape long in the front-rear direction, and is provided inside the lower half of the left and right side walls 1a, 1b forming the dryer main body, and inside the left and right side walls 1a, 1b. left and right inclined partition walls 4, 5 that are linearly inclined downward toward the left and right, and left and right grain plates 6, 7 that are bent and inclined from the ends of the inclined partition walls 4, 5 toward the substantially central bottom of the dryer main body 1; are arranged in a continuous manner, and a hot air blowing chamber 2 and a dust exhausting chamber 3 of similar shapes, only the upper part of which is a right triangle, are provided at opposing positions on both sides of the lower half of the dryer main body 1.

And the hot air blowing chamber 2 is located in a right triangle shape.
and the dust exhaust air chamber 3 are arranged in a direction orthogonal to the horizontal direction, and are made up of a plurality of rows of hot air chambers 9 with one end connected to the hot air blower chamber 2 through a ventilation window 8. A paddy flow path 12 is formed between the hot air chamber 9 and the exhaust chamber 11, and the dust exhaust chamber 3 is connected to the exhaust chamber 11 in a plurality of rows connected through the exhaust window 10. The paddy flow path 12 is constructed alternately so that the paddy flow path 12...
The upper end is the tempering tank 1 formed at the top of the dryer main body 1.
3, and its lower end is connected to hot air chamber 9...
. . . and the exhaust chamber 11 . The hot air chamber 9... and the exhaust chamber 11...
. . . have side surfaces facing the paddy flow path 12 formed into ventilation surfaces 16 and 17.

A feed-out port 18 is opened in each trough of the wave-shaped partition wall 14 along the front-rear direction, and a feed-out roll 19 that is intermittently rotated is rotatably mounted on a shaft at the position of the feed-out port 18. has been done.

Further, a take-out chamber 20 surrounded by the hot air blowing chamber 2, the dust exhaust air chamber 3, the unwinding chamber 15, and the front and rear side walls 1c and 1d of the dryer main body 1 is disposed at the lower part of the unwinding chamber 15. A carry-out gutter 21 is provided along the front-rear direction in the lower space between the blower chamber 2 and the dust exhaust air chamber 3, and this connects the carry-out gutter 21 with the take-out chamber 20.

Note that there is a carry-out screw 22 inside the carry-out gutter 21.
is hung horizontally so that it can rotate freely, and there is also a carry-out gutter 21.
One end is connected to the lower part of a circulation elevator 23 installed upright on one side of the dryer main body, and the upper part of the circulation elevator 23 is connected to a carry-in gutter 24 installed horizontally along the front-rear direction at the top of the dryer main body 1. Connect to the starting end. The lower half of the carry-in gutter 24 located on the dryer main body 1 is fully opened 25, and furthermore,
Opening 25 from the starting end of the carry-in gutter 24 to approximately the center
is configured to be opened and closed by an opening/closing plate 28 attached to a rotation support shaft 26 via a support rod 27. An operating lever 29 that can be pushed or pulled is pivotally attached to the end of the rotating support shaft 26 extending outward from the dryer body 1 via a rotating arm 30. Opening/closing plate 28
is caused to slide in the left-right direction about the rotation support shaft 26.

A partition wall 31 is disposed approximately at the center of the hot air blowing chamber 2 described above to partition the inside of the hot air blowing chamber 2 into two rooms: a front hot air blowing chamber 32 and a rear hot air blowing chamber 33. In addition, the front hot air ventilation chamber 3
2 and a burner 35 in the rear hot air blowing chamber 33,
The dry hot air generated separately by the main and auxiliary hot air generators 34 and 36 is directed to the front hot air blowing chamber by facing the discharge sides of the main hot air generator 34 and the auxiliary hot air generator 36, each of which houses a hot air generator 37. 32 and rear hot air ventilation chamber 33
Make it squirt inside.

Reference numeral 38 denotes a suction/exhaust fan mounted on the rear side of the dust exhaust/air chamber 3, and a suction/exhaust fan wheel 39 is rotatably housed inside the suction/exhaust fan 38. Reference numeral 40 denotes a conveyance screw that is rotatably stored in the carry-in gutter 24.

Next, its effect will be explained.

Now, by operating the operating lever 29, the opening 25 opened in the lower half of the carry-in gutter 24 is closed by the opening/closing plate 28, and the grains to be dried are passed through the circulation elevator 23 and the carry-in gutter 24. When the grains are fed, the grains are transported by the transport screw 40 to approximately the center position of the transport gutter 24, and then transferred to the opening 2 which is always open.
5, the paddy is dropped into the conditioning tank 13 and the paddy flow path 12...
The refining tank 13 as well as the feeding chamber 15 is filled.

When the main body 1 of the dryer is filled with grains in this manner, the supply of grains is stopped, and at the same time, the burners 35, 37 and the suction/exhaust air impeller 39 are started, and the main and sub-hot air generators 34, 36 are started. and the suction/exhaust fan 38 to blow dry hot air into the front hot air blowing chamber 3.
2 and into the rear hot air generation chamber 33, respectively, and at the same time, the delivery rolls 19... and the delivery screw 22 are rotated.

Then, the dry hot air at the appropriate temperature will be drawn by the suction exhaust fan 38.
Due to the suction action of each blower chamber 8..., the hot air chamber 9...
After being suctioned and filled, it passes through the ventilation surface 16... through the paddy flow path 12..., further enters the ventilation chamber 11... from the ventilation surface 17..., and passes through the ventilation window 10... The dust is sucked into the exhaust air chamber 3, and finally the suction exhaust fan wheel 3
At 9, the air is concentrated and exhausted far outside the aircraft. Therefore, by the intermittent rotation operation of the feeding roll 19..., the paddy flow path 1
The grains flowing down one after another are dried along the circulating dry hot air, are deposited in a feeding chamber 15, and are then discharged into a taking-out chamber 20 by a feeding roll 19. The dried grains discharged into the unloading chamber 20 are conveyed by the unloading screw 22 along the unloading gutter 21 to the circulation elevator 23, and then transferred to the unloading gutter 2 again.
4, and is circulated back into the refining tank 13 for a circulation effect. Therefore, if the above-mentioned circulation drying operation is performed multiple times, the grains can be dried to the required moisture content.

However, depending on the state of the drying operation, it may be necessary to store and dry a fractional amount of grain. In such a case, push up the operating lever 29, rotate the opening/closing plate 28 counterclockwise using the rotation support shaft 26 in the state shown in FIG. 1, and with the opening 25 fully opened, The grains are dropped into the tempering tank 13 via the circulation elevator 23 and the carry-in gutter 24. Then, the fractional amount of grain is filled into the paddy channel 12 facing the hot air blowing chamber 32 side, the feeding chamber 15, and the tempering tank 13. Therefore, in the same way as described above, the burner 35 is rotated at the same time as each operating member is rotated.
is started to operate only the main hot air generator 34, and then the suction exhaust fan 38 is operated.

Then, the dry hot air generated by the main hot air generator 34 passes through the hot air chamber 9 filled with grains from the hot air blowing chamber 32 to the exhaust chamber 1.
While carrying out the distribution action leading to 1..., the fractional amount of grain that is firmly flowed down by the intermittent rotation of the feed rolls 19... is dried. Therefore, while the above-mentioned fractional amount of grain is circulated and flowed many times along the inside of the front side of the dryer body 1, it is dried to a predetermined moisture content, or the fractional amount of grain is filled. Since no dry hot air is blown into the dryer main body 1 which is not in use, the fuel consumption of the burner required for drying work can be significantly reduced.

[Brief explanation of the drawing]

The drawings show an embodiment of the grain dryer according to the present invention, in which Fig. 1 is a front view taken longitudinally through the hot air chamber, Fig. 2 is a front view taken longitudinally through the exhaust chamber, and Fig. 2 is a front view taken longitudinally through the exhaust chamber. Figure 3 is a vertical side view of Figure 1.
FIG. 4 is a side sectional view taken along the line A--A in FIG. 1. FIG. 1...Dryer body, 2...Hot air blower chamber, 3...
Dust exhaust air chamber, 9...Multiple rows of hot air chambers, 11...Multiple rows of exhaust air chambers, 12...Paddy flow path, 31...Partition wall,
32... Front hot air blowing chamber, 33... Rear hot air blowing chamber, 34... Main hot air generator, 35... Its burner, 36... Sub-hot air generator, 37... Its burner.

Claims (1)

[Scope of utility model registration request] A hot air blowing chamber and a dust exhausting chamber are provided at opposing positions on both sides of the lower half of the dryer body, which is formed long in the front and back, and one end is connected to the hot air blowing chamber between the hot air blowing chamber and the dust exhausting chamber. A plurality of hot air chambers are constructed alternately, and a plurality of hot air chambers having one end connected to a dust exhaust chamber are alternately constructed so that a paddy flow path is formed between the chambers. It is divided into a hot-air chamber and a rear hot-air blowing chamber, and the front hot-air blowing chamber houses the discharge side of the main hot-air generator that houses a burner, and the rear hot-air blowing chamber houses a secondary hot-air generator that houses a burner. A grain dryer characterized in that the discharge sides of the grains are faced to each other.