JPS6287778A - Method of drying cereal - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a grain drying method for drying grain with hot air.

BACKGROUND OF THE INVENTION Conventionally, grain dryers for drying grains using hot air are widely known, for example, as described in Japanese Patent Application Laid-Open No. 150475/1983. This method employs a method of drying continuously from the start of drying to the end under preset drying conditions.

Problems that the invention aims to solve By the way, according to the conventional method of continuously drying grains, if the initial moisture content of the grains is uneven, it is difficult to make the finished drying moisture uniform. Furthermore, when drying glutinous rice, problems have been raised, such as the fact that it is not finished to a uniform milky white color with good quality.

In view of this problem, the present invention provides a drying pause time in the middle of drying to provide sufficient preheating and tempering effects to the grains, and evenly distributes moisture in the finished drying process. The purpose is to provide a method of drying grains that can produce a uniform milky white color of good quality.

Means for Solving the Problems The present invention has the following technical means for achieving the object. That is, the grain drying method according to the present invention is a grain drying method in which grains are ventilated with hot air, and after performing preliminary drying, drying is stopped for a required time, and finishing drying is performed again to dry the grains to a predetermined moisture content. It is characterized by drying.

When drying working grain, when ventilation drying is started using hot air determined based on the amount of grain being loaded and the outside temperature, etc., drying is paused for the required time after preliminary drying, and then final drying is performed again. , the grain is given sufficient preheating and tempering effects during the drying down time. Therefore, the moisture unevenness of the grain is adjusted to even out, and in the case of glutinous rice, it becomes a uniform milky white color and is finished in good quality.

Embodiment An embodiment of the grain drying method according to the present invention will be described with reference to the drawings.

As shown in Figure 1, after determining the optimal hot air temperature based on the amount of grain to be loaded and the outside air temperature, etc., the preliminary drying time, the temperature of the grain to restart finishing drying, Set the finishing moisture for each. When drying is started, preliminary drying is continued, and when the set preliminary drying time has elapsed, drying is stopped and a drying pause is entered. As the drying pause continues, the temperature of the grain gradually decreases, so when the temperature of the grain is detected to restart finish drying, finish drying is restarted, and drying continues until it is detected that the grain has finished moisture. I can continue.

The finishing moisture level at which drying ends when the grain reaches finishing moisture is around 14%.

FIG. 2 shows the case where the preliminary iii drying stop moisture is set and the drying stop time is set.

In this case, during pre-drying, when it is detected that the moisture content of the grain has reached the set value above, drying will stop and a drying pause will occur, and once the drying pause has elapsed for the set time, finish drying will resume. Ru.

In addition, in each of the above examples, if the moisture content of the grains exceeds a certain level (17 to 18%) when the pre-drying is stopped, room temperature air is blown for an appropriate period of time (1 hour) to prevent deterioration of the grains. Good too. In addition, if the dial for setting the pre-drying time (or pre-drying stop moisture) is equipped with a release switch at its starting end, the selection between pre-drying and through-drying can be made using only that dial. I can do it.

Effects of the Invention Since the present invention has and operates the technical means as described above, it can sufficiently preheat and temper the grain during drying, and evenly distribute moisture in the finished drying process. Also,
In the case of glutinous rice, it has the effect of being able to be finished to a uniform milky white color of good quality.

[Brief explanation of drawings]

The drawings show an embodiment of the grain drying method according to the present invention.
2 and 2 are respective flowcharts.

Claims (2)

[Claims] (1) In a grain drying method in which grains are ventilated with hot air, after preliminary drying, drying is suspended for a required period of time,
A grain drying method characterized by drying the grain to a predetermined moisture content by performing finish drying again. (2) Pre-drying is performed for a preset time from the start of drying or for a preset time until moisture is detected,
2. The grain drying method according to claim 1, wherein finish drying is started when the temperature of the grain has decreased to a certain value due to a cessation of drying.