Drying and Storage Plant Attached to a Country Elevator (II)

Application for Bulk Bin Storage

Abstract

This investigation was carried out to find out the availability of the drying and storage plant attached to the Country Elevator of MUKAWA Agricultural Cooperative Association in Hokkaido. Following the previous report, this paper is a report of investigations conducted to determine the storage chracteristics of paddy, using DRYSTORE as a bulk storage facility.
In this investigation, 9 of 40 bins were used as storage bins.
The temperature of various place of this plant and stored paddy were measured, and other measured items for determining the quality of stored paddy were moisture content, germination viability and fat acidity.
The results obtained are as follows.
During the investigation period, there were large diurnal fluctuations in temperature and atomospheric conditions seemed hard for paddy storage. However the influence of temperature on stored paddy was slightened because of the insulating material (thickness: 50mm) with which the surrounding walls of storage bins were covered thoroughly.
While only 9 bins (416 ton) were loaded in the first year (1971), in the next year (1972) all bins were loaded with 2270 ton of paddy. In both two times of storage tests, most of stored paddies were kept at low temperature and the qualities of stored paddy were not deteriorated. And the storage characteristics of this plant in 1971 tests were not so different from in 1972 tests.