JPS5812979A - Method of drying product - 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] The present invention relates to a method for drying sardines containing moisture.

First, mix the materials containing moisture (powder, crushed solids, cake,
A conventional method for drying garbage (garbage, etc.) will be explained with reference to FIG.

In a vertical furnace 1 that occupies a small area, a plurality of hearths 2 are provided to widen the drying bed surface, and a stirring arm 4 that protrudes from a stirring shaft 3 and rotates around the hearth 2). The stirring teeth 5 disperse the soybean paste over the entire surface of the hearth 2 in each stage, and the injection nozzle 6 provided on the wall of the vertical furnace 1 blows hot air onto the dispersed soybean material to absorb moisture. Dry the sprinkles. Note that the first
In the figure, A is an input port for the materials, B is a discharge port, and 7.8 is a drop port provided alternately at the center of each hearth 2 and near the inner periphery of the hearth wall.

However, since the hot air blown by the injection nozzle 6 flows and moves along the ceiling of each drying stage as it swirls in the furnace, the heat transfer coefficient η is approximately 60 to 70 KCaj/m" hrtl: The disadvantage was that it required a large vertical furnace with a wider hearth.

SUMMARY OF THE INVENTION In view of the above-mentioned drawbacks, it is an object of the present invention to provide a drying method in which the supplied hot air is sufficiently mixed and contacted with the dispersed spray material.

Next, an embodiment of the present invention will be explained with reference to FIG. The mixture is injected into each hearth 2 through an injection nozzle 10 provided near the stirring teeth 5 through an air passage 9 that communicates with the inside of the members (stirring shaft 3, stirring arm 4). 1 + Injection lower provided in each hearth, 8, the injected hot air is distributed to each hearth 2, and the inlet/port At 9 at the upper end of the vertical furnace l is made to flow out through the outlet B at the lower end. It is to make it.

The operation of the above configuration will be explained next.

The hot air that is injected towards the hearth 2 mixes between the scattered materials that are stirred by the stirring teeth 4 and activates drying.The hot air that flows through each hearth 2 serves to heat the scattered materials and to This acts as a substitute for the hot air inside, promoting drying.

As explained above, this invention injects hot air from near the stirring teeth and mixes the hot air into the dumped material, which effectively accelerates the drying of the dumped material and improves drying efficiency. It can be improved. Therefore, the number of hearth stages of the vertical furnace can be reduced, and the furnace body can be made smaller.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a conventional vertical drying furnace, and FIG. 2 is a cross-sectional view showing an embodiment of the vertical drying furnace in which the present invention is implemented. 1; Vertical furnace, 2: Hearth, 3: Stirring shaft, 4: Stirring arm, 5:
Stirring tooth, 9: Air passage, 10: Injection nozzle Agent Patent attorney Takashi Honma 1.7 1st 2nd figure

Claims (1)

[Claims] In the drying method for drying sardines, in which hot gas is blown into the furnace and the sardines charged into the furnace are stirred and dried by stirring teeth provided on a support member, the hot gas is blown into the vicinity of the stirring teeth. A method for drying sobamono, which is characterized by spraying water onto each hearth through a spray nozzle provided at the bottom.