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Continuous drying apparatus for porous web

A technology of porous fabric and drying device, applied in drying, dryer, dryer and other directions, can solve the problems of reduced condensation heat transfer rate, hindered vapor diffusion, etc., to reduce power consumption, easy replacement, and improved performance Effect

Inactive Publication Date: 2004-01-07
MITSUBISHI HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

as from Figure 7 Correspondingly, as the air content increases, the diffusion of the vapor is hindered, leading to a decrease in the condensation heat transfer rate, as clearly seen in

Method used

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  • Continuous drying apparatus for porous web
  • Continuous drying apparatus for porous web
  • Continuous drying apparatus for porous web

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Experimental program
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Embodiment Construction

[0041] An embodiment of the present invention will now be described with reference to the accompanying drawings.

[0042] Figures 1 to 3 The structure of the continuous drying apparatus for porous fabrics according to one embodiment of the present invention will be described. figure 1 is a simplified diagram showing its structure, figure 2 is a horizontal section showing one of its principal parts, while image 3 is an isometric drawing showing its main parts.

[0043] At the same time, if figure 1As shown, the continuous drying apparatus for porous fabrics (the concept of porous fabrics includes not only paper but also sheets or other similar materials) according to the present invention includes many water lubricating shoe 115 (water lubricant shoe); and an air removal chamber configured on the upper stream of the water lubricating shoe 115 to get rid of the air contained in the porous fabric 102 while the porous fabric 102 is conveyed along the heating cylinder 101 ...

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Abstract

The present invention is directed to a technique on a continuous drying apparatus for porous web, which comprises a heating cylinder, an impermeable drying band impermeable to air and water, coming into contact with and supporting the surface on the side having no contact with the heating cylinder of the porous web, and a plurality of water lubricating shoe members arranged around the heating cylinder apart a desired distance from the external side of the impermeable drying band, for forming a water screen flow between them and the external surface of the impermeable drying band, whereby an effective drying of the porous web is achieved.

Description

technical field [0001] The present invention relates to a continuous dryer for porous fabrics, suitable for use as a pressure dryer for the drying section of a paper machine, or as a pressure dryer for porous fabrics other than paper (e.g. board drying device). Background technique [0002] Figure 4 is a schematic diagram of a conventional continuous drying apparatus for porous fabrics (quoted from Japanese Patent Publication No. HEI 1-56198). In this device, as Figure 4 As shown, the paper or other porous fabric 3 (such as a sheet) to be dried and the drying belt (drying felt or wire mesh) 4 supporting the porous fabric 3 together with the auxiliary wire mesh 5 are continuously exhausted by the air pump 7 air-exhausted chambers 6 and subjected to an air-exhaust treatment in order to have good thermal conductivity, after which they pass between the two surface elements 1 and 8 which are impermeable to air. [0003] In this case, the surface members 1 and 8 surround the p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21F3/02D21F5/02
CPCD21F5/02D21F3/0281
Inventor 久野広明真田晃谷口迈星要之介
Owner MITSUBISHI HEAVY IND LTD