JPH02293053A - Grain drying and processing equipment - Google Patents

Abstract

PURPOSE:To prevent nonuniformity from being caused in the final quality by interposing a sp. gr. sorter between a receiving stage and a grain drying stage and separately performing drying treatment for grain discharged from the different discharge parts of this sorter. CONSTITUTION:A sp. gr. sorter 12 is interposed between the receiving stage of a receiving hopper 1 and the grain drying stage of a dryer 13. In other words, the grain passed through a roughing machine 2 is stored in a storage bin 6 after moisture content of grain at every weighing is measured by a built-in moisture meter of an automatic scale 3. When the dispersion of moisture content is regulated to the prescribed value or below, this grain is directly dried by a dryer 13. Further, when the dispersion of moisture content is regulated to the prescribed value or more, this grain is supplied to a sp. gr. sorter 12. The grain high in value of moisture content is taken out from an outlet 14 and the grain low in value thereof is taken out from an outlet 15. The grain of low moisture content discharged therefrom is returned to the other side 6' of the storage bin. Prescribed drying is performed for the grain discharged from the outlet 14 by the dryer 13. Then the grain of low moisture content in the bin 6' is dried.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] This invention relates to a grain drying and preparation device. [Prior Art and Problems to be Solved by the Invention] In the receiving process in the communal grain drying equipment, the grain that has gone through processes such as rough selection and weighing is
Consignments received from multiple farmers at the same time reach storage bins in a mixed state, and are transferred to dryers as appropriate for drying.
Therefore, grains with different moisture values will coexist due to differences in the harvest time of farmers and differences in fields. For this reason, in the drying operation in the dryer, uneven moisture cannot be eliminated, resulting in uneven finish quality.

[Means to solve problems]

The present invention attempts to overcome the above-mentioned drawbacks by interposing a specific gravity sorting device 12 between the receiving process and the grain drying process, as well as drying the grains from different discharge sections 14, 15 separately. The configuration of the device.

[Operation and effect of the invention]

By interposing a specific gravity sorting device between the receiving process and the grain drying process, high-moisture grains and low-moisture grains can be taken out separately from different outlets of this specific gravity sorting device, and these can be dried separately. Since it is a drying process, it is possible to perform a drying process with little variation in moisture content, thereby solving the drawbacks mentioned at the beginning.

〔Example〕

An embodiment of this invention will be described based on the drawings.

1 is a receiving hopper, 2 is a rough sorter, 3 is an automatic weighing machine,
These are connected in series via a receiving conveyor 4 and a receiving elevator 5. Reference numeral 6.6' denotes storage bins provided in two series, which can be stocked on any side while being switched between passages by the outlet side switching valve 8 of the storage stocking lift 7.

Elevators 9, 9' installed upright on the sides of the storage bins 6, 6'
The starting end side faces the discharge side of the discharge conveyor 10, 10', and the fried grain outlet side has switching valves 11, 11'.
By switching these switching valves 11, 11', the circulation routes a, a', the routes b, b' to the specific gravity separator 12, and the routes a, c' to the dryers 13, 13, . . . can be selected.

This specific gravity sorter 12 includes a hopper section 12a and a swing sorting section 12.
b, and is configured such that grains of different specific gravities can be taken out at the outlet 14.15 of the swing sorting section 12b. That is, grains with a high moisture value are mainly taken out from the outlet 14, and grains with a low moisture value are taken out from the outlet 15.

The outlet 14 of the specific gravity sorter 12 passes through an elevator 16 to a switching valve 17, which connects a path d to one of the storage bins 6, a path e to the other 6', and a dryer 13. , 13 . . . Further, the outlet 15 of the specific gravity sorter 12 passes through the elevator 18 and reaches the switching valve 19.
Similarly to the above, a path g connecting to one of the storage bottles 6, 6, a path mh connecting to the other, and a dryer 13,
Switches to route i that connects to 13...

20 is the above-mentioned route c, a', f. This is a dryer loading conveyor for receiving grain from i and supplying it to any of the plurality of dryers 13, 13...

Note that the dryers 13, 13, . . . are configured to be able to gradually dry the falling grains to a predetermined finishing moisture value by passing a conventionally known hot air through them.

The effect of the above example will be explained.

The received grain is received in the receiving hopper 1 for each farmer.

The grains passed through the coarse sorter 2 are weighed by the automatic weighing machine 3 to determine the amount received by each farmer, and at the same time, the grain moisture content at each weighing is measured using a built-in moisture meter (not shown) and is displayed or stored as appropriate. The weighed grains are sequentially loaded into one of the two storage bins 6 side.

Next, the process moves to the drying process using the dryers 13, 13, etc., but the moisture variation in the grains in the storage bin 6 is known from the previous moisture measurement, and if the variation is less than a predetermined value, the changeover valve 11 switches the grain to the path C. , and directly feed the dryer loading conveyor 20. Moreover, when the above-mentioned variation is more than a predetermined value, route b is selected and the sample is supplied to the specific gravity sorter 12. In the specific gravity sorter 12, since the specific gravity differs depending on the height difference in grain moisture, grains with high moisture values are shaken up and sent to the outlet 1 while gradually flowing through the oscillating sorting section 12b toward the discharge side.
4, the lower grains of which are pushed to the opposite side and removed through outlet 15.

The low moisture grain from the outlet 15 is returned to the other side 6' of the storage bin via a path g selected by the switching valve 19. Further, the low moisture grain from the outlet 14 is sent to the dryer 13.13 via a path f selected by the switching valve 17.
. . . The material reaches the tensioning conveyor 20, is supplied into an appropriate dryer, and is subjected to a predetermined drying action.

When the drying operation of this high-moisture grain is completed, the low-moisture grain that had been returned to the other side 6' of the storage bin is supplied to the dryer 13, 13, etc. via path C' and subjected to a predetermined drying action. becomes.

[Brief explanation of drawings]

The figure is a flow diagram showing one embodiment of the present invention. In the figure, 1 is a receiving hopper. 6.6' indicates a storage bin, 12 indicates a specific gravity sorter, and 13.13... indicates a dryer.

Claims (1)

[Claims] (1) A grain drying and preparation device in which a specific gravity sorting device 12 is interposed between a receiving process and a grain drying process, and grains from different discharge sections 14 and 15 are separately dried.