JPS593673B2 - How to remove residual grain in a grain dryer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention eliminates the solidification of dried grains and the removal of rats by transporting out the dried grains remaining in the carry-in gutter, feed-out section, and carry-out gutter upon completion of drying by the simple movement of rice husks. This invention relates to a method for carrying out residual grain in a grain dryer, which prevents damage and allows the next drying operation to be carried out under sanitary conditions at any time.

The grains to be dried are carried from the elevator through the carry-in gutter into the main body of the dryer, and a predetermined amount of the grains carried into the main body of the dryer are exposed to hot air in the paddy channel installed vertically inside the main body of the dryer. However, according to the rotating action of the delivery roll, it was sequentially discharged from the delivery section to the lower take-out tank, and then carried out to the elevator through the delivery gutter, and then circulated back into the dryer body via the elevator and delivery gutter. For grain dryers that complete the drying process,
Upon completion of the aforementioned drying operation, the dried grains are discharged out of the machine via an elevator.During this discharge operation, the dimensions between the loading gutter, the feeding section, the unloading gutter, and the rotating member are Due to the formation of the rotation gap, a phenomenon occurs in which a portion of the dry grain remains within the rotation gap.

If the remaining grain is left unattended during the drying process, the grain will be assimilated and adhered to by weathering, and rats will enter the inside of the dryer and devour it, making the interior of the dryer extremely unsanitary. However, it was not possible to carry out the next drying operation smoothly, and there was a strong desire for an effective technology to easily transport the dried grains.

In view of the above, the present invention provides a large amount of unnecessary waste obtained by unweighing dried grains, which has a large volume, and which does not need to be worried about easily solidifying and adhering due to weathering or being devoured by rats. After completing the drying work, the rice husks are carried into the dryer main body, and the core rice husks are sequentially mixed with the dry grains remaining in the delivery section of the carry-in gutter and the carry-out gutter, and transferred to the elevator. An attempt has been made to provide a method for carrying out residual grain in a grain dryer, which quickly and easily solves the above-mentioned drawbacks caused by residual dried grain by discharging the grains and rice husks to the outside in a mixed state using an elevator. The construction of a grain dryer using the method of the present invention will be described below with reference to a preferred embodiment shown in the accompanying drawings.

1 is a tempering tank 2 in which the paddy that has been exposed to hot air is allowed to stand for a period of time in the upper stage, and has enough capacity for the paddy itself to undergo a tempering action; and in the middle stage, hot air is applied to the paddy that has fallen by gravity from the tempering tank 2. The main body of the dryer has a ventilation drying cylinder 3 and a take-out tank 4 in the lower stage for collecting paddy which has been exposed to hot air and dried, which are stacked three-dimensionally, and the whole is formed into a rectangular cylindrical shape or other arbitrary cross-sectional shape. do.

The circumferential wall of the ventilation drying cylinder 3 is shielded by a blind plate, and inside there is a hot air blowing frame 5 which is in communication with a hot air generator 7 installed on the front side of the dryer main body 1 on one side, and the above-mentioned take-out tank 4 on the lower side. and hot air exhaust frames 6 which are in communication with each other are vertically arranged alternately so that a paddy flow path 8 of the same width is formed between the frames 5 and 6.

A feed-out portion 10 is provided below the paddy channel 8, in which feed-out rolls 9 are mounted on shafts so as to be rotatable.

One side of the take-out tank 4 is equipped with a suction exhaust fan 11 having an appropriate suction force, and the bottom of the take-out tank 4 is equipped with a transition screw whose one end is connected to an elevator 12 attached to one side of the dryer main body 1. A conveying gutter 13 having an inner groove 14 is installed horizontally to circulate the paddy.

Reference numeral 15 denotes a carry-in machine installed horizontally on the upper part of the dryer main body 1, and its starting end side is connected to the upper part of the elevator 12, and a carry-in screw 16 is horizontally mounted inside.

A discharge pipe 17 is connected to one side of the loading machine 15 that connects the upper part of the elevator 12 to the starting end side.
A switching valve 18 is pivotally supported at the boundary position between the switching valve 18 and the discharge pipe 17, and by switching the switching valve 18, grains discharged from the elevator 12 can be carried into the carrying machine 15 or discharged from the discharge pipe 17 to the outside. urge

Next, the operation of the present invention will be explained.

When the grain to be dried is discharged from the upper part of the elevator 12 with the full switching valve 18 set to the chain line position in FIG.
Then, the rice grains are filled not only into the rice grain channel 8 vertically installed in the dryer main body 1 but also into the tempering tank 2.

When a predetermined amount of grain is filled into the dryer main body 1 in this way, the loading operation is stopped, and the hot air generator 7, suction exhaust fan 11, feed roll 9, and transfer screw 14
start.

Then, as the grains sequentially flow down the paddy channel 8 in accordance with the rotation of the feed rolls 9, they are exposed to hot air coming out from the hot air blower frame 5 and crossing the hot air exhaust frame 6, and are dried while being taken out from the feeder section 10 and taken out from the tank. It is discharged at 4.

However, since the suction and sorting air from the suction exhaust fan 11 is flowing through the take-out tank 4, the exhaust air after drying and the dust mixed in the grains are concentratedly exhausted to the outside by the suction exhaust fan 11. The grains are transferred to the elevator 12 by a transfer screw 14 through a carry-out gutter 13 installed horizontally at the bottom of the take-out tank 4, and then circulated back into the dryer main body 1 via the lift 12 and loading machine 15, where they are exposed to hot air again. dried.

When the grains are completely dried in this way through several circulations, the switching valve 18 is switched to the solid line position shown in FIG. 2, and the dried grains are discharged from the discharge tube 17 to the outside.

When drying is completed through the above steps, a large amount of dried grain remains in the carrying machine 15, the feeding section 10, and the carrying out gutter 13, and it is difficult to discharge it.

Therefore, in such a case, a large amount of rice husk A obtained when the dry grains are deweighed is continuously supplied from the elevator 12 into the carrying machine 15 with the changeover valve 18 in the state indicated by the chain line in Fig. 2. do.

In this case, the rice husk A has a larger volume than the dry grain, and since it is not solidified due to weathering or eaten by rats, the dry grain remaining at the bottom of the loading machine 15 is Rice husk A is transferred one after another in one direction.
The paddy flow path 8 is pushed out and is in a mixed state.
The person then falls into the feeding section 1 by the rotation of the feeding roll 9.
The grains remaining in the tank A are dropped into the take-out tank A together with the rice husks A in the same way as described above, and are finally passed through the unloading gutter 13 to the elevator 1.
In the process of being transferred to the second direction, the grains remaining in the carry-out gutter 13 are also mixed with the rice husks A and carried out into the elevator 12.

Since the switching valve 18 is previously switched to the solid line position in FIG. 2 at the same time as rice husk A is input, the residual grains and rice husk A are successively discharged to the outside from the discharge tube 17 via the elevator 12. .

The rice husk A and grains remaining at the bottom of the elevator 12 can be scraped out from an outlet (not shown) provided at the bottom of the elevator.

In addition, in the case of a dryer in which a plurality of rice husks A are arranged vertically, it is better to operate the dryer so that an equal amount of rice husk A is thrown into the rice husks A into the rice husks 8.

In short, the present invention transports a large amount of rice husks A into the dryer main body 1 after the drying of the grain to be dried is completed, and transfers the rice husks A to the transporter
5. The dried grains remaining in the feeding section 10 and the carry-out gutter 13 are sequentially mixed and transferred, and the remaining dried grains and rice husks are discharged to the outside by the elevator 12 in a mixed state, and then dried. Even if some of the dried grain remains in the carry-in machine 15, the feeding section 10, and the carry-out gutter 13 due to the completion of the work, the transfer action of the rice husk A causes the remaining grain to be transferred together with the rice husk A to the elevator 12 on the final process side. The inside of the dryer can be easily cleaned by transporting and discharging it to the outside, thereby completely eliminating solidification of residual grains and rodent damage. Since rice husk A was adopted as the material for discharging the residual grain, even if the rice husk A remains in the drying machine after the residual grain removal work is completed, it will not be solidified like dried grain. It will not be devoured by birds or rats,
When drying different types of grains in succession, even if all the different types of grains are quickly discharged from the dryer and the different types of grains are immediately put in for drying operations, the quality grade may deteriorate. It has a unique effect.

[Brief explanation of the drawing]

The drawings show an embodiment of a dryer using the method of the present invention, in which FIG. 1 is a longitudinal sectional front view, and FIG. 2 is an enlarged side sectional view of the main part with a portion cut away. 1...Dryer main body, 4...Take-out tank,
8... Rice flow path, 10... Feeding part, 1
2... Elevator, 13... Carrying out gutter, 15
......Import price, A...Rice husk.

Claims (1)

[Claims] 1. After the drying of the grain to be dried is completed, a large amount of rice husk is carried into the main body of the dryer, and the kernel rice husk is sequentially mixed with the dried grains remaining in the carry-in gutter, the feeding section, and the carry-out gutter, and transferred to the elevator. A method for discharging residual grains in a grain dryer, characterized in that residual dried grains and rice husks are discharged to the outside in a mixed state using an elevator.