JPS60207890A - Drier for food packaging bag - 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 drying bag@ (referred to as the device) according to the present invention is a method for removing water droplets from conventional standing pouches after sterilizing aluminum or resin standing pouches filled with food with hot water or steam. Method: (1) Leave it for a long time (about 1 day) and let it dry naturally. (2) Wipe it off with a cloth, etc. (3) Perform hot air drying or cold air dehumidification drying. However, natural drying takes a long time and requires a large drying area. Wiping requires a large number of workers. In hot air drying, there is a problem of changes in the taste of food due to a one-level increase in temperature.

Cold air dehumidification drying takes a long time and requires expensive equipment. There were many problems that needed to be solved.

Moreover, it is difficult to remove water droplets adhering to the bottom surface of the standing pouch (27 in FIG. 4.5.6) by any of the conventional methods.

This device solves these problems and has the following advantages: (1) shortened drying time, (2) labor saving, (3) increased drying capacity per hour, and (4) reduced device installation space. It has the following.

The present device will be specifically explained based on the drawings.

In the process of moving the standing pouches (referred to as ichi pouches) lined up on the net conveyor 2 from the entrance A to the exit B, they are guided by not one row but multiple rows of guide bars 8.9 provided on the net conveyor. Move in an orderly manner and directly under the blow-off nozzle 6.4 (hereinafter referred to as the nozzle),
and passing directly above.

The nozzle is located near the entrance side of the drying chamber 10 and sprays air at the center of each row through which the pouches pass, from above the net conveyor once to several times and from below once to several times. For example, air is injected toward the pouches 6 times from the north of the net conveyor and 6 times from the bottom. If the pouches are moving in 10 rows, there are 60 nozzles (
6 x 10-60) required.

This spraying from below makes it possible to remove most of the water droplets adhering to the bottom surface 27 of the pouch.

The air injected from the nozzle is used to blow away water droplets that adhere to the pouch, so it must be under considerable dynamic pressure (at least 5wA).
q) is necessary, and the ability of the blower 5 to generate the air to be injected is selected depending on the number of nozzles, the diameter of the nozzles, etc. If the dynamic pressure of the injected air is too large relative to the weight of the pouch, there will be problems such as the pouch body falling over, so it is preferable to have a structure in which the injected air can be adjusted. Note that the air to be injected is room temperature or heated air.

Most of the water droplets adhering to the pouch are blown away by the air jet, but some moisture remains on the surface of the pouch, so it is dried with warm air after the nostle is installed and transferred to the outlet.

The warm air is supplied by a heat exchanger 20 installed inside or outside the drying room.
The hot air is generated by a steam jacket, etc.) and is blown by the blower, and then sent into the hot air drying chamber, or discharged to an appropriate position in the drying chamber through a duct by a separately provided hot air blower 11. Furthermore, these two means may be used together.

In addition, warm air has a smaller amount of evaporated water than the pouch, so the relative humidity increases slowly, so it is advantageous to circulate and reuse most of it as an energy-saving measure, and it is better to have a structure that allows the amount of circulation to be adjusted. .

The humid air discharged from the apparatus is discharged to the outside of the apparatus by a separately provided exhaust blower 17 or to the outside of the room in which the apparatus is installed via a tact.

The conveyance speed of the net conveyor should be selected depending on the amount of pouches to be dried, their shape, size, and moisture adhesion, and the structure should be such that the conveyance speed can be selected by a control device (frequency control using an inverter, etc.).

[Brief explanation of drawings]

FIG. 1 is an example of the drying apparatus of the present invention, and shows a side sectional view of the apparatus. In the figure, 1 is the main body frame, 2 is the net conveyor, and 6
is an upper blowing nozzle, 4 is a lower blowing nozzle, 5 is a blower for blasting air, 6 is a blasting air distribution duct, 7 is an air supply pipe to the nozzle, 8 is a lower guide bar, 9 is an upper guide bar, 10 is a drying 11 is a warm air blower, 12 is a hot air discharge tact, 16 is a hot air distribution tact, 14 is a hot air circulation volume adjustment tambar, 15 is a hot air volume damper, 16 is a hot air stirring fan, 17 is an exhaust blower , 18 is the exhaust air volume tamper 1
Reference numeral 19 indicates a reduction gear motor for driving the net conveyor. FIG. 2 is a plan view of the apparatus of the present invention, in which 5 is a floor for blast air, 16 is a blast air distribution tact, 8 is a lower kite bar, 16 is a hot air distribution tact, 20 is a steam jacket, and 21 is a hot air temperature. A regulating thermocouple 22 is a steam electromagnetic valve for regulating hot air temperature, 26 is an opening pipe for the steam 7, 24 is a steam outlet pipe, 25 is a hot air distribution control panel, and 26 is a jet air distribution duct screw. Figure 6 is a sectional view taken along line a-a in Figure 1, in which 2 is a net conveyor, 6 is an upper blowing nozzle, 4 is a lower blowing nozzle, 6 is a jet air distribution block, and 7 is an air flow to the nozzle. Supply pipe, 8 is a lower guide bar, 9 is an upper guide bar, 2
6 indicates an injection air distribution adjustment screw. Figure 4 is a front view of the stunting pouch, Figure 5 is a side view of the stunting pouch, Figure 6 is a bottom view of the stunting pouch, and 27 in Figure 4.5.6 is the bottom part of the stunting pouch. represents. Agent Tetsuya Onishi

Claims (1)

[Claims] A nozzle that injects room-temperature or heated air with a dynamic pressure of at least 5 gIIIAq or more is provided, the air is passed through the packaging bag at the injection position, most of the moisture adhering to the packaging bag is blown away, and the remaining moisture is heated. A drying device for food packaging bags, characterized in that food packaging bags are removed by air drying.