JPH0391689A - Drier for soybean or the like - Google Patents

Abstract

PURPOSE:To minimize the waste of time in the operation by a method wherein a separator for hulls is installed at discharge passage and the hull from the separator is returned back to the main body of a drier. CONSTITUTION:At a discharge passage a separator 12 for hulls is installed and also a return transfer unit 17 which returns back the hull from the separator 12 to the main body of a drier is installed. Accordingly, even if circulation transfer is followed to repeat drying, the damage of soybean, etc., can be lessened and the separation of mud, etc., adhered to the surface can be promoted. When drying is finished and the soybeans are discharged to the outside of the drier, the soybeans are separated from the hull and discharged because of the existence of the separator 12, and on the other hand, the hull is returned back to the main body of the drier through the unit 17 and used on and after the next drying operation of the soybeans. Thereby, the separation of the hull after drying of the soybeans and return processing are carried out in parallel with discharge operation and the waste of time in the operation can be reduced.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a drying device for grains such as soybeans.

[8M to be solved by the prior art and the invention] Conventionally, a method of drying soybeans using a so-called circulation type grain drying device is known. Although other precautions are taken, the soybeans are contaminated after harvesting and are transferred to the circulation drying process, which requires a lot of effort to clean them after drying.

[Means to solve the problem]

This invention solves the above-mentioned drawbacks by carrying out surface cleaning treatment in parallel during circulation drying, and is a drying device that dries soybeans, etc. to be dried and rice husks in a mixed state by passing drying air through them. The soybean drying apparatus has a configuration in which a rice husk separator [12] is provided in the discharge passage, and a reduction transfer device 17 is provided for returning the rice husks from the separator 12 to the main body of the drying apparatus.

[Operation and effect of the invention]

Grains such as soybeans to be dried and rice husks are placed in a mixed state in a drying device and dried by blowing hot air or dehumidified air on them. In addition, the rice husk acts as a buffer material and reduces damage to soybeans, etc.

In addition, the flow facilitates the separation of the mud adhering to the surface.

Furthermore, when the drying is completed and the rice husks are discharged outside the drying equipment, a rice husk separation device is used, so the soybeans are separated from the rice husks and discharged, while the rice husks are transferred to the drying equipment via the reduction transfer device. It is returned to the main body and used for subsequent drying of soybeans.

Therefore, rice husk separation and reduction treatment after soybean drying are necessary.

This is done in parallel with the discharge work, reducing the time-consuming loss of work style.

〔Example〕

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

Reference numeral 1 designates a well-known circulation type dryer, which includes a storage tank 2, a drying chamber 3 in which hot air generated by a burner and a suction fan acts on soybeans flowing down a downstream passage to dry them, and a drying chamber 3 that collects soybeans flowing downstream. It consists of a collecting room 5, etc., which is transferred to one side by a spiral transfer device 4. Reference numeral 6 denotes an elevator, the lower part of which is connected to the above-mentioned spiral transfer device 4, and the upper part communicated with one side of an upper spiral transfer device 7 provided on the ceiling of the storage tank 2.

At the upper center of the storage tank 2, a rotating diffusion plate 8 is disposed below the terminal end of the upper spiral transfer device 7.

9 is a tensioning hopper provided at the lower part of the elevator 6.

Reference numeral 10 denotes a discharge cylinder connected to the transfer start end side of the upper spiral transfer device 7, and is connected via a discharge port opened and closed by an opening/closing plate 11. A separating device 12 for separating and sorting soybeans and rice husks is provided at the end of the discharge cylinder 10.

This separation device 12 is rotated around a horizontal axis by a drive motor (not shown), and has a rotating sorting cylinder 13 formed with a slit hole on the circumference from which soybeans cannot leak, but smaller rice husks can leak through.
This configuration separates and sorts the mixture of soybeans and rice husks supplied to the starting end side as it reaches the terminal end side outlet 14. A hopper-like receiver section 15 is provided below the co-rotating sorting tube 13 that forms the slit hole, and this receiver further includes a section 15.
A rice husk reduction thrower 17 serving as a reduction transfer device is connected to the collecting side portion 16 of No. 5. The upper end of the thrower 17 is exposed midway through the machine section of the upper spiral transfer device 7. 1
8 is a drive motor that rotates and interlocks the thrower blade 19.

The action of the upper side will be explained.

When soybeans to be dried are put into the loading hopper 9, the elevator 6
．． It is pushed into the storage tank 2 by the upper spiral transfer device 7. Rice husks as a cushioning material are similarly added to the rice husks, which are divided into sections according to a predetermined amount of filling. The temperature of the hot air is set to a predetermined value, and when the soybeans flow down the flow path, the hot air acts on them and dries them.

The dried soybeans are collected in a grain collecting room 5, returned to a storage tank 2 by an elevator 6, and subjected to a conditioning action.

During the ring drying process, rice husks are mixed with the soybeans, and the rice husks act as a buffer during the transport process.

This prevents damage to the soybeans, and also removes mud and earth adhering to the surface of the soybeans during flow.

Drying is stopped when a predetermined time or a predetermined moisture content is reached.
Moving on to the discharge process, when the discharge port of the upper spiral transfer device 7 is opened, the mixture of soybeans and rice husks passes through the discharge port and the discharge cylinder 10 and reaches the separation device 12 . Here, small rice husks leak out from the slit holes while flowing inside the rotary sorting cylinder 13.

Large soybeans flow as they are from the terminal end toward the outlet 14 and are discharged. The soybeans are appropriately collected using collection bags, etc., while the rice husks are received in the hopper section 15 and transferred to the upper spiral transfer device 7 in the reduction thrower 17.
It is returned to the middle.

When one soybean discharge process is completed in this way, only the rice husks remain inside the storage tank 2, and are used for the next soybean drying process.

[Brief explanation of drawings]

The figures show one embodiment of the invention, with the first figure being a side view and the second figure being a side view.
The figure is a front view, and FIG. 3 is a sectional view of a part thereof. In the figure, 2 is a storage tank, 3 is a drying room, 6 is an elevator, 7 is an upper spiral transfer device, 9 is a loading hopper, 10 is a discharge cylinder,
11 is an opening/closing plate, 12 is a separation device, 13 is a co-rotating sorting cylinder, 1
Reference numeral 4 indicates an outlet on the terminal side, 15 indicates a hopper-shaped receiver, 16 indicates a collection and planting section, 17 indicates a rice husk reduction thrower (as a reduction transfer device), and 18 indicates a drive motor.

Claims (1)

[Claims] (1) In a drying device that mixes soybeans, etc. and rice husks to be dried and dries them by passing drying air through them, a rice husk separating device 12 is provided in the discharge passage, and the rice husks from this separating device 12 are returned to the main body of the drying device. A drying device for soybeans, etc., which is equipped with a reduction transfer device 17.