JPS5811374A - Improvement of high-frequency continuous drying method of silk fabric - 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] Conventional drying methods for wet fabrics have mainly been hot air drying methods that are not affected by the weather. As a result, the volume of the drying room became extremely large, and the building also became larger.
Not only does the heat radiation loss increase, but the exhaust heat loss caused by the large amount of high-temperature air in the exhaust gas escaping with it also increases, and there is a limit to how much heat efficiency can be improved by recirculating a portion of the exhaust gas.
There was a demand for a more compact and more thermally efficient method.

The method of the present invention was developed as a result of trial and error in consideration of the above requirements.

As experienced with household microwave ovens, high-frequency heating works directly on the moisture contained in the heated object and effectively converts radio wave energy into heat energy, eliminating the need to disperse the heated object into a thin layer. Moreover, it was confirmed through experiments that the absorption efficiency of radio waves was improved by making the layer thicker to some extent, and the present invention was completed.

In the present invention, the continuously treated wet fabric can be shaken down with a constant shaking width onto a porous sheet made of an insulating material or a net conveyor, and the width can be reduced to a constant value or even 1/10, making it extremely compact. The material to be dried itself becomes a heating element and evaporates the moisture contained in it.The heat radiation from the side walls of the drying chamber is from the released steam that has completed its drying action, so its properties are different from the heat radiation loss from hot air. Not only is radio wave energy used extremely effectively for drying purposes, but there is no need for a steam boiler or heat exchanger to generate hot air, and the installation space for them can be omitted, and the drying process can be started immediately at any time. This has the effect of making it easy to save resources and energy, as there is no heat dissipation loss after shutdown.

To explain the attached drawings, Figure 1 is a schematic diagram of the main parts of a high-frequency continuous dryer for wet fabrics that implements the present invention. 1 is a high-frequency electrode plate, and 2 is made of an insulator that allows radio waves to pass through. A perforated sheet or a net conveyor 3 is a layered wet fabric that is shaken off with a constant shaking width.4 is a fabric that has been continuously dried using high frequency.The second figure is a schematic diagram of the shake-off device 5 in the wet fabric supply section.The third figure is a diagram of the wet fabric. An arrangement diagram of an example of the reversing conveyor 6 and reversing guide 7 in the supply section
It is.

Particularly when the swing width is wide and the superimposed layer thickness is large, if the reversing conveyor 6 and reversing guide 7 are appropriately arranged so that the wet fabric layer can be smoothly reversed and transferred, the upper layer will always be dried sequentially when taken out. When you take out the finished fabric, a crack will be formed.

[Brief explanation of drawings]

Figure 1 is a schematic diagram of the main parts of a high-frequency continuous dryer for wet fabrics. Figure 2 is a schematic diagram of the shake-off device. Figure 3 is a schematic diagram of a part of the reversing conveyor.

Claims (2)

[Claims] (1) After treatments such as dyeing, bleaching, and washing, the mechanically wrung wet fabric is layered on a porous sheet or net conveyor made of an insulating material while being shaken off at a constant shaking rate. Improvement of a high-frequency continuous drying method for fabrics, which is characterized by continuously drying the fabric by passing it between high-frequency electrode plates. (2) The wet fabric is stacked on a relatively short endless conveyor while being shaken off with a constant shaking motion, and is reversed by a guide installed along the reversing end of the conveyor while running at a constant speed underneath the conveyor. Improvement of the high frequency continuous drying method for fabric according to claim 11, characterized in that the fabric is placed in reverse on a parallel net conveyor, subjected to high frequency continuous sheathing, and then continuously taken out.