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Paper humidifying device

A humidification equipment and paper technology, applied in papermaking, papermaking machines, wetting devices, etc., can solve the problems of poor paper humidification effect and difficult to control the flow of floating steam gas, improve printing effect and solve the problem of flatness , the effect of preventing warping

Active Publication Date: 2014-07-16
浙江汉普新材料技术有限公司
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] In order to solve the above problems, the object of the present invention is to provide an upper humidification device, which overcomes the technical problems that the gas flow direction of the floating steam is difficult to control and the paper humidification effect is not good.

Method used

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Embodiment Construction

[0024] The preferred embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0025] Such as Figure 1~8 A paper humidifying device is shown, which is located before the calender. The paper humidifying equipment includes a frame, a filter, an upper humidifying box 2, a steam processor 4 and a plurality of pressure control devices. The upper humidification box 2 includes a box body 21 and a heat exchanger 23 , a front air duct 24 , a partition 27 , a first steam pipe 25 , and a second steam pipe 26 arranged in the box body 21 . After the equipment is fed with industrial high-pressure steam, the steam passes through the filter, pressure control device, heat exchanger 23, steam processor 4, pressure control device, first steam pipeline 25 or second steam pipeline 26, humidification chamber and front air Tube 24. The pressure control device includes a pressure sensor and an electric actuator valve. Since the...

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Abstract

The invention relates to the field of papermaking devices, in particular to a paper humidifying device. The paper humidifying device comprises a humidifying box. The humidifying box comprises a box body, a dummy plate and a steam pipeline, wherein the dummy plate and the steam pipeline are arranged in the box body. The box body is arranged above paper conveyed by a roll shaft, the box body is divided into an upper part and a lower part by the dummy plate, the upper part is an installation chamber, the space between the dummy plate and the paper is a humidifying chamber, the steam pipeline is arranged in the installation chamber, a steam valve is arranged on the steam pipeline, and a nozzle of the steam valve is located in the humidifying chamber. The invention aims to provide an upward side humidifying device, the upward side humidifying device overcomes the technical defects that the steam flow direction of rising steam can not be controlled, and the humidifying effect of the paper is poor.

Description

technical field [0001] The invention relates to the field of papermaking equipment, in particular to paper humidifying equipment. Background technique [0002] The existing paper machine includes the following structure in sequence: sizing system→headbox→wire part→press part→drying part→calender→winding machine. However, the quality index "smoothness", "air permeability" and "tightness" of the paper produced by drying and calendering in the drying section are mutually restricted, and the overall quality of the paper cannot be guaranteed. Therefore, some people imagine calendering by calender before drying, but in practice, it will be found that this kind of semi-wet calendering cannot be realized at all. The reason is that the paper is wet as a whole before drying, including the inside and the surface. With calendering, the paper sticks to the calender rolls without forming. [0003] In addition, Chinese patent 201220737434.6 discloses a humidifying box on a paper machine....

Claims

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Application Information

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IPC IPC(8): D21G7/00
Inventor 黄雨辰王小君
Owner 浙江汉普新材料技术有限公司
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