JPS6237101Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a grain frying device in a circulating grain dryer, and by using the grain frying device as a rice grain sorting device, only paddy is put into the dryer. This is an attempt to eliminate errors in moisture content measurements caused by the inclusion of rice grains with significantly different moisture contents.

This invention took the following technical measures to achieve the above objective.

That is, there is a circulating grain grain conditioning chamber 1 in the upper part, a drying part 2 in the lower part, and a grain collecting room 3 in the lower part, and the grain collecting room 3 and the grain collecting room 1 are connected by a grain lifting device 4. In the grain dryer, the grain frying device 4 is composed of a rotating helical tube 6 surrounding which a feeding helix 5 is formed, and a grain sorting mesh tube 7 that stands around the rotating helical tube 6. A grain lifting device in a circulating grain dryer is provided with a guide passage 8 for guiding grains leaking from a sorting net 7 to the outside of the machine.

In the illustrated example, the main body of the circulating grain dryer is a known one, with a large-capacity conditioning chamber 1 at the top.
A drying section 2 is provided at the bottom of the drying section.

The drying section 2 is configured to guide and ventilate hot air generated from the furnace 9 to a fried grain drying passage 10 communicating with the lower part of the conditioning chamber 1, and further to suck and exhaust the air using a suction fan 11.

In the grain collecting room 3 below the drying section 2, there is a drying passage 10.
a rotary valve 12 for feeding out grains from the
A transfer helix 14 is provided to collect and transfer the fed grains to the supply port 13 of the grain lifting device 4.

Reference numeral 15 is a helical screw for transferring grains from the grain outlet 16 of the grain lifting device 4 into the tempering chamber 1.

The grain lifting device 4 is located on one side of the dryer and is installed upright, and includes a rotating helical tube 6 that forms a feeding helix 5 around it, and a grain sorting screen tube 7 that stands up around the helical tube 6. and a rice cake guide passage 8 formed around the sorting screen tube 7. 17 is a case forming the passage 8.

Numeral 18 is a grain loading hopper, which is configured to be able to supply grains from the opening 19 of the rice cake sorting screen tube 7 to the sorting passage 20.

In addition, the supply port 13 of the grain frying device 4 is connected to the rice cake sorting screen tube 7.
It is formed with an open lower end and communicates with the terminal end of the transfer helix 14.

The lower end of the rice cake guide passage 8 has a collection gutter 21 and a discharge port 2.
2 communicates with the outside of the machine.

The upper part of the grain lifting device 4 is not provided with a rice grain sorting screen tube 7, and a sorting passage 20 is opened to form a discharge port 16 to a grain distribution helix 15. 23 is a grain flow guide plate;
Reference numeral 24 denotes a spring blade fixed to the rotating helical cylinder 6.

Reference numeral 25 is an electric motor configured to drive the rotating helical cylinder 6, and 26 is a bearing that pivotally supports the lower end of the cylinder 6.

First, when the grains to be dried are staked, the grains supplied from the stake hopper 18 are placed in the opening 19.
It is supplied to a sorting passage 20 formed between the rotating helical tube 6 and the rice cake sorting screen tube 7 through the .

The grains in the sorting passage 20 are sent upward by the rotation of the rotating helical cylinder 6, and small grains of rice cake leak outward from the rice grain sorting screen cylinder 7 into the rice cake guide passage 8.
The leaked rice cake falls down the guide passage 8, passes through the collection gutter 21 at the lower end and the discharge port 22, and is discharged to the outside of the machine. or,
At the same time, dust, twigs, etc. are sorted out in the same way as rice cake and are discharged outside the machine.

The grains sent up to the upper end of the sorting passage 20 are supplied from the discharge port 16 to the grain distribution helix 15,
The grain is filled into the tempering chamber 1 by the grain distribution helix 15.

When the drying operation is started, the grains in the drying passage 10 are sequentially dried by the hot air from the furnace 9, and are delivered to the grain collection chamber 3 by the rotation of the rotary valve 12, and then transferred to the supply port 1 by the transfer helix 14.
3 to the grain frying device 4.

In the grain lifting process of this grain frying device 4, the sorting of rice cakes and the sorting of dust are repeated in the same manner as in the above-mentioned chucking and frying process.

In this drying process, the grain being dried is taken out as a sample and its moisture content is measured.If the aircraft is equipped with a moisture content meter, its control mechanism measures the moisture content and determines the combustion state. This is used to determine control and drying completion time, but the initial moisture content of rice grains and regular rice grains differ by 10 to 15%, and when measuring the moisture content of grains mixed with grain rice grains, the correct moisture content could not be measured, leading to incorrect operation. It was the cause of However, since the rice grains and dust are reliably removed by the grain lifting device 4, it is possible to accurately measure the moisture content of the paddy and perform drying work with high precision.

Since this device is constructed as described above, it uses the grain lifting device of the circulating grain dryer to also have the function of sorting rice grains, and separates grains and dust during paddy loading and circulation drying. Since it can be taken out of the machine, it is possible to accurately measure the moisture content of the paddy and perform accurate drying work.

Furthermore, if the rice grains are removed during the drying process, the post-hulling process can be carried out more efficiently.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which FIG. 1 is a front sectional view and FIG. 2 is a side sectional view of the main part. In the figure, symbol 1 is a tempering chamber, 2 is a drying section, 3 is a grain collecting room, 4 is a grain frying device, 5 is a feeding helix, 6 is a rotating helical tube, 7 is a rice cake sorting screen tube, and 8 is a guide path It is.

Claims (1)

[Scope of utility model registration request] A circulating grain dryer has a conditioning chamber in the upper part, a drying section in the lower part, and a grain collecting room in the lower part, and the grain collecting room and the conditioning room are connected by a grain lifting device. The grain device is composed of a rotating helical tube that forms a feeding helix around the rotating helical tube, and a gruel sorting net that is set up around the rotating helical tube, and a guide that guides the gruel that leaks from the sorting net out of the machine. A grain lifting device in a circulating grain dryer provided with a passage.