JPS5912547Y2 - Suction type paddy drying device - Google Patents

Description

[Detailed description of the invention] The present invention provides a structure in which intake frames and exhaust frames are arranged vertically in multiple rows alternately through the paddy flow path in the ventilation drying cylinder.
This invention relates to a suction-type rice grain drying device that can uniformly dry rice grains by sucking and circulating drying hot air at a uniform temperature through a plurality of rows of vertically arranged rice grain flow channels to uniformly dry the rice grains.

First, as described in Japanese Utility Model Publication No. 48-26381, the present applicant installed a conditioning tank, a ventilation drying cylinder, and a take-out tank three-dimensionally in order in the main body of the dryer, and inside the ventilation drying cylinder. In this method, ventilation frames and exhaust frames are arranged vertically in multiple rows alternately through the paddy flow path, and a suction/exhaust fan is installed in the take-out tank to remove dry hot air generated by the suction action of the suction/exhaust machine. We have developed a suction-type paddy dryer that dries the paddy by passing it through a channel during the process of discharging it from the intake frame to the exhaust frame, and as it has been put into practice, it has shown considerable effectiveness.

By the way, in the paddy drying device of the above-mentioned type, the intake frames vertically installed in multiple rows inside the ventilation drying barrel are all formed into one independent chamber, and each intake frame were individually connected to a hot air generating cylinder located at the center of the front of the dryer via branch communication tubes.

Therefore, when the suction exhaust fan is operated during drying work, the combustion flames burning in the hot air generation cylinder and the intake outside air are not drawn uniformly into the multiple rows of intake frames, but are drawn to one side. cause.

As a result, there is a difference in the temperature of the dry hot air sucked into the multiple rows of intake frames, and one side of the intake frame directs the hot dry air at a higher temperature toward the paddy flow path to speed up the drying process. , the dry hot air at a lower temperature than the other intake frame is distributed towards the paddy flow path, making it difficult to dry the paddy, resulting in the disadvantage that all the paddy cannot be uniformly dried with the dry hot air at the same temperature, and this problem cannot be improved. This was something that was strongly desired.

In view of the above, the present invention has been developed so that even if intake frames and exhaust frames are arranged vertically in multiple rows alternately through the paddy flow path in the ventilation drying cylinder, the ends of the intake frames in the plurality of rows are connected to each other. A hot air generation cylinder housing only a burner is installed on the intake side of the intake frame, which is connected linearly through a communication passage to form a single dry hot air flow passage, and is the intake start end side. By making it possible for the blown dry hot air to flow through the plurality of interconnected rows of air intake frames under an even temperature distribution condition, and thereby allowing the dry hot air with the above-mentioned uniform temperature to flow to the plurality of rows of paddy flow passages, The purpose of the present invention is to provide a suction type rice drying device that can uniformly dry rice, and the structure of the device according to the present invention will be described below with reference to a preferred embodiment shown in the accompanying drawings.

Reference numeral 1 denotes a dryer main body having a substantially hermetic shape, and inside the dryer main body 1, a conditioning tank 2, a ventilation drying cylinder 3, and a take-out tank 4 are sequentially stacked three-dimensionally.

In the ventilation drying cylinder 3, intake frames 5... and exhaust frames 6... are arranged vertically in plural rows alternately via the paddy flow paths 7... Also, the plurality of rows of vertically arranged intake frames 5... are connected in a straight line through the communication passage 8 to form one passage.
On the intake side 9 of the intake frame 5a, which is the intake start end side, there is a hot air generation cylinder 10 which is open at both ends and houses only a burner 11.
be arranged.

Therefore, the installation position of the hot air generating cylinder 10 is on one side of the front of the dryer main body 1.

The lower side of the exhaust frames 6 vertically arranged in multiple rows and the lower part of the paddy flow path 7 are respectively connected to the take-out tank 4 directly or via rotatable pay-out rolls 12, and are connected to the take-out tank 4. A suction/exhaust fan 13 is disposed on one side of the machine 4 to centrally exhaust hot air and dust to the outside of the machine.

Reference numeral 14 denotes a take-out screw horizontally suspended at the bottom of the take-out tank 4. Reference numeral 15 denotes an elevator installed on the front side of the dryer main body 1, and the lower part of the elevator 15 is connected to the take-out tank 4 via the carry-in screw 14. At the same time as being connected, the upper part of the elevator 15 is connected to the tempering tank 2 via the carrying-in device 16.

17 is a hopper for tensioning attached to the elevator 15.

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

If the elevator 15 and carrying device 16 are now started and the paddy is put into the loading hopper 17, the paddy will pass through the elevator 15 and carrying device 16, and then enter the conditioning tank 2, the paddy channel 7, and the paddy flow path 7.
・・・・・・It is filled inside.

When a predetermined amount of paddy is filled in this way, the supply is stopped, the burner 11 is started to burn, and the feed roll 12 is
, by rotating the suction exhaust fan 13 and the carry-in screw 14, the hot air generation cylinder 10 is removed by the suction action of the suction exhaust fan 13.
The outside air sucked into the chamber is well stirred and mixed with the combustion flame to become dry hot air at an appropriate temperature, which sequentially fills the plurality of rows of intake frames 5 starting from the intake frame 5a on the intake start end side.

These multiple rows of intake frames 5... are communication passages 8.
Since they are connected in a straight line through
After being filled with uniform temperature distribution everywhere, the paddy flows through the exhaust frame 6 by suction, and the inside of the flow path 7 is fed out and the rolls 12 are rotated. During the operation, the paddy is showered on the paddy that is rectified and dried uniformly, and the exhaust hot air sucked into the take-out tank 4 from the exhaust frame 6 and dust generated during drying work are removed from the machine by the suction exhaust fan 13. The paddy that has fallen into the take-out tank 4 is transferred to the carry-in screw 14, elevator 15 and carry-in device 1 again.
The paddy is circulated and returned to the tempering tank 2 through the process 6, and dried rice in a completely uniform state is obtained through several cycles of circulation.

In short, since the present invention has the above structure,
For example, inside the ventilation drying cylinder 3 there is an intake frame 5... and an exhaust frame 6.
. . . are alternately arranged vertically in multiple rows through the paddy flow path 7 .
. . . are connected linearly through a communication passage 3 to form a single dry hot air flow passage, and only a burner 11 is housed on the intake side 9 of the intake frame 5a, which is the intake start end side. By arranging the heated air generating cylinder 10, each of the intake frames 5 arranged vertically in multiple rows is filled with dry hot air of uniform temperature by suction action, By uniformly blowing dry hot air at a uniform temperature onto the paddy flowing down through the paddy flow path 7, it is possible to quickly obtain uniformly dried paddy. By being located at the top, the front device of the elevator 15 and the tensioning hopper 17 can be used to improve the efficiency of paddy tensioning work. It has the effect of tightening the area.

[Brief explanation of the drawing]

The drawings show one embodiment of the device of the present invention, and the first
The figure is a partially cutaway perspective view of the whole, Figure 2 is a longitudinal sectional front view of the same, and Figure 3 is a cross-sectional plan view of the main parts. 1... Main body of the dryer, 2...・Refining tank, 3
...... Ventilation drying cylinder, 4... Take-out tank, 5.
...Intake frames in multiple rows, 5a...Intake frames located on the intake start end side, 6...Intake frames in multiple rows,
7...Multiple rows of paddy flow paths, 8...Communication path, 9...Intake side of intake frame, 10...Hot air generation cylinder, 11... ... Burner, 13... Suction exhaust fan.

Claims (1)

[Scope of utility model registration request] A refining tank, a ventilation drying cylinder, and a take-out tank are sequentially installed three-dimensionally in the dryer body, which has a nearly hermetic shape. In the case where a plurality of rows are arranged vertically and a suction exhaust fan is arranged in the take-out tank, the end side of each intake frame arranged vertically across the plurality of rows becomes one passage through a communication passage. A suction type paddy drying device characterized in that the suction type paddy drying device is connected linearly as shown in FIG.