JPS5851877A - Heat-treatment of dried laver - Google Patents

Abstract

PURPOSE:To heat-treat dried laver sheets efficiently, by passing it through endothermic rollers in a treating chamber. CONSTITUTION:The treating chamber 3 for the device 1 for heat treatent is provided, the temperature in the chamber is kept at 50-80 deg.C by the heat source 4 such as seed heater, etc. and the fan 5. A pair of the endothermic rollres 8a and 8b made of stainless steel are provided from the inlet 6 to the outlet 7, and droven at a given speed by the variable speed electric motor 9. The laver sheets sent from the extender A to the feeder B are fed one by one to the device 1 for heat treatment and adjusted to a water content of about 3wt%.

Description

[Detailed description of the invention] This invention is inspired by a method for burning dry seaweed.

Production of dried seaweed is limited to the winter period, and the next year's production is
It is consumed throughout the year up to X3 m1, and efforts are being made to suppress the deterioration of its quality as much as possible for at least one year, and to preserve it in a state as close as possible to the dried nori at the time of production. One method is to process dried seaweed, which normally contains 8 to 12% moisture, through ``fire treatment'' (drying treatment) to adjust the moisture content to around 3%, and then use it in square bags made of kraft, aluminum or polyester. Store it in a sealed container and store it in a warehouse to prevent moisture.
It is common practice in the distribution industry to store

Therefore, traditionally, at wholesalers, when dry seaweed purchased from producers is fired, the dried seaweed is first folded in half into 10 sheets and wrapped in 10 sheets, which is then manually unwrapped by workers. The stretching process is laborious, time consuming, and inefficient.The firing process involves arranging many sheets of stretched seaweed vertically. Store it in a box with a mesh on the bottom, put it in a hot air dryer,
Burning was carried out by forced circulation of hot air using an electric boiler for about 2 to 12 hours. This hot air dryer is large,
It takes up a lot of space and the fuel cost is high, and the same fuel cost is required even when a small amount is fired, which is uneconomical along with the labor cost for the stretching work.

In addition, it was complicated to take the seaweed in and out of the warehouse, and it was not possible to store large pieces of seaweed all at once, and when using a lending place, continuous shooting and packaging work was complicated.

Therefore, this invention eliminates the drawbacks of the conventional method, does not require a hot air dryer, allows large amounts of rice to be processed during processing on the processing line, uses inexpensive fuel*, does not take up much space, and is an economical method for burning dried seaweed. Hereinafter, one embodiment of the apparatus used in the present invention will be described. (1) is a main body of a large input processing apparatus that can be moved by installing casters (2);
) is provided with a processing chamber (3), in which the chamber is kept at a constant ambient temperature by a heat source (4) such as a sheathed heater and a fan (5) installed below the heat source. The is provided with an inlet (6) and an extrusion (7) on the other side, and heat-absorbing rollers made of, for example, stainless steel are provided vertically facing each other from the inlet to the outlet. 3a, 8b) are arranged in multiple sets at regular intervals. Each of these rollers is driven by a variable speed motor (9) so that its rotational speed can be freely adjusted. Further, a heat insulating plate α0 and an exhaust duct θV may be provided on the upper m1 of the processing chamber (3). Furthermore, in order to keep the ambient temperature within the processing chamber (3) constant, it goes without saying that a thermostat or the like is used to control the temperature.

Next, to describe one embodiment of the present invention, the dried seaweed stretched by the stretching device (A) is conveyed on a conveyor and fed by a feeding machine (B).
) and then transported one by one from the feeder to the entrance (6) of the bulk processing device (1). Then, dried seaweed is fed into the p-lar (ga, sb), and is loaded with a large amount of dried seaweed by a roller or the like that absorbs heat from the heat source (4), and then sent out from the river mouth (7). In this case, it is said that it is best to perform the firing treatment in a temperature range of 50°C to 80°C, and it is desirable to maintain the atmospheric temperature within this range.

According to this invention, during the process of Shimaka Elaine, the bulk processing work can be carried out with just one whistle, and since each sheet of dried seaweed is heated under the same conditions, uniform quality can be obtained, and hot air is It does not require large equipment such as a dryer, does not occupy space, and is economical as fuel costs are low, resulting in extremely beneficial effects.

[Brief explanation of drawings]

Figure m is a partially cutaway front view showing an embodiment of the apparatus used in the present invention. 1. Large input processing device 2. Casters 3. Processing chamber 4. Heat source 5. Fan 6. Lower input... Exit
3a, 3b...Roller 9...Variable speed motor 1
0...Insulation board 11...Exhaust duct)A...Stretching device B
...Feeder patent applicant: Takaharu Hamano (5) -4

Claims (1)

[Claims] A large number of pairs of upper and lower rollers that have endothermic properties within a predetermined ambient temperature are arranged in a row at regular intervals, and the dried seaweed stretched between these rollers is sequentially press-fitted and conveyed, and the ambient temperature and rotational speed of the rollers are controlled by mttri series. , a method for burning dry seaweed, which comprises burning to a desired low moisture content.