JPH0528465Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention uses a suction fan to remove paddy, dust, etc. that tend to remain in the feeding section at the end of drying work while moving it along the inner surface of the lower flow grain board. A system for discharging residual paddy from the feeding section of a paddy dryer that can prevent paddy, dust, etc. from remaining in the feeding section by actively blowing it away using the suction air that is blown toward the tip side during the suction operation. Regarding equipment.

[Prior Art] Conventionally, unwinding in a paddy dryer involves discharging an equal amount of paddy filled in a drying passage into a bowl take-out tank, or discharging unhulled paddy so as not to generate residual paddy in the unwinding section at the end of the drying operation. The roll is known as described in Japanese Utility Model Publication No. 56-42283 prior to this application, and has a configuration as shown in FIG. A restraining plate 5 whose tip is retreated radially inward from the tip of the spring 2 is arranged on the counter-rotation surface of the spring 2.
An elastic plate 4 protruding radially outward from the tip of the spring 2 is arranged between the spring 2 and the holding plate 5, and the radius of the elastic plate 4 held between the spring 2 and the holding plate 5 is A flat portion 7 extending from the spring 2 in the counter-rotation direction is formed immediately outward in the direction. In addition, 3 is a fixture, 6 is a lower flow grain board, and 9 is an upper flow grain board.

[Problem to be solved by the invention] By the way, in conventional feeding rolls of this type, the feeding member for actively discharging the remaining paddy usually uses an elastic plate made of rubber. The elastic plate was attached to the delivery blade via a tensioning member in such a manner that it always popped out in the radial direction from the delivery blade during rotation.

Therefore, during the intermittent paddy drying work,
The elastic plate is also rotated together with the pay-out roll in a state where it protrudes from the pay-out blade, and as a result, the tip end of the elastic plate quickly wears out and gets damaged due to contact with the paddy and the lower flow grain plate. Of course, as the elastic force decreases due to aging, the tip side of the elastic plate remains curved in the counter-rotation direction, making it difficult to smoothly discharge not only residual rice but also fine dust. When dry paddy discharge work is completed, it is not discharged by the feed roll and remains on the lower flow grain board, which may cause accidents caused by rats, or residual paddy and residual dust may be left on the lower flow grain board. There was a problem in that it solidified and adhered, making it difficult to interrupt the paddy drying operation thereafter.

The present invention was devised in view of the problems of the conventional technology, and its purpose is to dry the grains by blowing drying air on them as they flow down the drying path. By the suction operation of the suction exhaust fan, the suction air is blown from the air blowing hole toward the tip side while following the inner surface of the grain board at the bottom of the flow, which removes the paddy, dust, etc. that would remain in the feeding section. The purpose of the present invention is to provide a device for discharging residual rice from a feeding section of a rice grain dryer, which can blow away rice residue and reliably prevent residue from remaining in the feeding section.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the residual paddy discharge device of the feeding section in the paddy dryer of the present invention has a hot air chamber 10.
5 and the exhaust chamber 106.
An upper flow grain plate 110 and a lower flow grain plate 111 are sequentially provided on the distal side of the feeding portion 109 so that the entire grain plate is curved diagonally downward from the base end side to the distal end side.
form. A feeding roll 113 is rotatably disposed within the feeding section 109 configured as described above.

Between the upper flow grain board 110 and the lower flow grain board 111, the base end side is connected to the inside of the take-out tank 104 equipped with a suction exhaust fan 116 on one side, and the lower part is Air blow holes 115 are opened along the horizontal direction to blow suction air toward the tip side along the inner surface of the grain flow board 111.

[Function] At the beginning of circulation drying, the drying passage 108
After being dried by the drying air flowing across the drying passage 108 due to the suction action of the suction blower 116, the paddy filled in the paddy is flowed down into the feeding section 109, and an even amount of rice is dumped into a bowl by the rotating feeding roll 113. It is delivered into the take-out tank 104.

Then, by repeating the drying operation as described above many times, the rice is dried to a predetermined moisture content.

Once the paddy has been dried as described above, the dried paddy filled in the drying passage 108 is sequentially fed into the take-out tank 104 by the feeding action of the feed roll 113, and then the paddy is removed by an appropriate discharge device. Discharge outside the dryer.

By the way, after the dried paddy is sequentially fed into the take-out tank 104 by the feeding action of the feeding roll 113 as described above and the dried paddy is discharged outside the machine, the upper flow grain plate 110 and the lower flow grain plate 111
Dry rice, fine dust, etc. that are not fed out by the feeding rolls 113 remain in the feeding portion 109 formed by the feeding rolls 113.

However, since the suction air blower 116 is operated from the beginning of the circulation drying process, suction air is distributed inside the take-out tank 104 from the feeding section 109 toward the suction air blower 116, so that part of the suction air flows upwardly. Suction air is blown toward the tip side along the inner surface of the lower flow grain plate 111 from the horizontally elongated air outlet 115 opened between the grain plate 110 and the lower flow grain plate 111. As a result, the dried paddy, fine dust, etc. that would remain on the lower flow grain plate 111 at the end of the dry paddy discharge work are blown away toward the tip side by the suction wind blowing action, and the lower flow grain is blown away. No residue is left on the plate 111.

Therefore, at the end of the dry paddy discharging work, there is no residual paddy or residual dust in the unwinding section 109, and the clean state is maintained, thereby preventing the rat-injury accidents that tend to occur in the past, as well as residual paddy and residual dust. It is possible to eliminate interruptions in paddy drying work due to adhesion of dust, etc.

[Example] Examples will be described with reference to the drawings.

In FIGS. 1 to 3, 101 is a dryer body constructed by three-dimensionally superimposing a tempering tank 102 in the upper stage, a ventilation drying cylinder 103 in the middle stage, and a take-out tank 104 in the lower stage. , the whole is formed into a rectangular cylindrical shape or other arbitrary cross-sectional shape.

The peripheral wall of the ventilation drying cylinder 103 is shielded by a blind plate, and inside there is a hot air chamber 105 that communicates with the hot air generator 107 installed on the front side of the dryer main body 101 on one side, and the above-mentioned take-out tank 104 on the lower side. The ventilation chamber 106 which is in communication with the chamber 105,
The drying passages 106 are alternately arranged vertically so that drying passages 108 of the same width are formed between them. Reference numeral 109 denotes a feeding portion formed by an upper flow grain plate 110 and a lower flow grain plate 111, which are provided on the distal side of the drying passage 108 so as to be curved obliquely downward as a whole from the base end side to the distal end side. A feeding roll 113 that is intermittently rotated in one direction about a rotating shaft 112 is mounted in the feeding section 109. The base end side of the upper flow grain plate 110 is a drying passage 108.
The lower flow grain plate 111 is attached to the connecting member 1 with one end attached to the upper flow grain plate 110.
14, the base end side is connected to the inside of the take-out tank 104 between the lower end side of the upper flow grain plate 110 and the upper end side of the lower flow grain plate 111, and the inner surface of the lower flow grain plate 111 An air blowing port 115 is opened along the horizontal direction and can forcefully blow suction air toward the tip side while the air blower is placed along the side.
In addition, in order to ensure that the suction air blown from the air blowhole 115 is blown toward the tip side while always following the inner surface of the lower flow grain plate 111, the lower end side of the upper flow grain plate 110 is The upper end side of the lower flow grain plate 111 is positioned so as to overlap with the lower part.

A suction exhaust fan 116 having an appropriate suction force is installed in communication with one side of the take-out tank 104, and the inside of the take-out tank 104 is brought into negative pressure by the suction action of the suction fan 116. As a state, the blowing action from the air blowhole 115 is promoted.

Reference numeral 117 denotes a take-out gutter installed horizontally at the bottom of the take-out tank 104, and the take-out gutter 117 has an elevator (not shown) with one end attached to one side of the dryer main body 101.
The unloading screw 118 connected to the lower part of the tank is horizontally suspended, and the dried paddy discharged into the unloading tank 104 is transported through the unloading screw 118 and an elevator (not shown).
The water is circulated back to the refining tank 102 through the following steps.

Therefore, according to the device of the present invention, not only during the circulation drying operation but also during the discharge operation of dried paddy outside the machine, the suction action of the suction exhaust fan 116 creates an air exhaust chamber 106 inside the take-out tank 104. Removal tank 10
4 to the suction exhaust fan 116, and due to the circulation action of the suction air, suction air is also directed from the air blower port 115 toward the tip side along the inner surface of the lower flow grain plate 111. Due to the powerful jetting, after the dry paddy discharge work is completed,
Dried paddy, fine dust, etc. that try to remain on the lower flow grain plate 111 are discharged from the tip side into the take-out tank 104 by the blowing action of the suction air, and are removed from the dryer main body 10.
1, and the feeding section 109 can be kept clean at all times.

[Effects of the invention] Since the present invention is configured as described above, it produces the following effects.

Payout roll 113 at the end of dry paddy discharge work
The dry rice grains and fine dust, etc. that are not fed out by the air blower and remain on the lower flow grain board 111 are removed from the air jet port 115 along the inner surface of the lower flow grain board 111 by the suction operation of the suction exhaust machine 116, and are moved toward the tip side. The suction air is vigorously ejected toward the distal end and removed.
It is possible to prevent dried rice grains, fine dust, etc. from remaining inside as much as possible, to maintain a clean state at all times, and to efficiently accomplish smooth drying work with a simple configuration.

[Brief explanation of the drawing]

The drawing shows an embodiment of a residual paddy discharge device in a feeding section of a paddy dryer according to the present invention,
Figure 1 is a longitudinal sectional front view of the paddy dryer with a part cut away.
Figure 2 is an enlarged longitudinal sectional front view of the main part with a part cut away.
Figure 3 is an enlarged perspective view of the feeding section with a part cut away;
FIG. 4 is a longitudinal sectional front view of a conventional pay-out roll with a portion cut away. 104...Takeout tank, 108...Drying passage, 1
09...Feeding part, 110...Upper flow grain plate, 11
1...Lower flow grain plate, 113...Feeding roll, 1
15...Air blowhole, 116...Suction exhaust machine.

Claims (1)

[Scope of utility model registration request] An upper grain flow plate and a lower grain flow plate are sequentially provided at the end side of the drying passage so that the entirety is bent obliquely downward from the base end side to the tip end side to form a delivery section;
A residual rice grain discharge device in the payout section of a rice grain dryer is characterized in that a payout roll is freely rotatably arranged within the payout section, and between the upper grain flow plate and the lower grain flow plate, the base end side is connected to the inside of an unloading tank which has a suction exhaust fan attached to one side, and an air outlet is opened along the horizontal direction which blows suction air toward the tip side along the inner surface of the lower grain flow plate by the suction operation of the suction exhaust fan.