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Device for adjusting moisture content of PVB film

A technology of moisture content and film, applied in the direction of drying gas arrangement, progressive dryer, drying solid materials, etc., can solve the problems of moisture content change, labor and time-consuming, difficult to pre-adjust in place, etc., to increase drying efficiency, increase The effect of contact area

Pending Publication Date: 2021-01-29
南京亚鼎光学有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production process is generally adjusted after drying. Adjusting the moisture content through the air humidity in the workshop is not only time-consuming, but also in the subsequent winding and packaging processes, due to environmental factors such as climate and air humidity, the moisture content Changes again, hard to pre-adjust in place

Method used

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  • Device for adjusting moisture content of PVB film
  • Device for adjusting moisture content of PVB film

Examples

Experimental program
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Effect test

Embodiment Construction

[0016] like figure 1 and figure 2 , after the water-passing or roll-passing process of PVB production, an integrated hot-air drying box 1 is installed, and the structure of the hot-air drying box 1 is as follows figure 1 and figure 2 shown. Hot air drying box 1 frontmost part is a pair of normal temperature dewatering air knives namely upper dewatering air knives 4 and lower dewatering air knives 5, which are used for removing water droplets and water films on the PVB film 10 surface. The principle of the present invention is to utilize the exchange characteristic (water absorption) of PVB film with air water vapor, and by adjusting the temperature and dryness of hot air, one-time completion of water removal, drying and adjustment of moisture content. The PVB film 10 is surrounded many times in the hot air drying oven 1, which greatly increases the contact area between the PVB film and the dry hot air. And because it blows horizontally, the hot air is not blocked by the ...

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Abstract

The invention provides a device for adjusting the moisture content of a PVB film, and particularly relates to the field of PVB intermediate film PVB film production. A hot air drying box with the length of 3-10 m is arranged after a PVB water passing or roller passing process. The hot air drying box comprises a pair of dewatering air knives installed on the front portion of the hot air drying box,3-5 layers of surrounding rollers installed in the hot air drying box, a hot air inlet wall, a hot air exhaust wall, a moisture content detector installed on an outlet of the hot air drying box, a PLC moisture content controller and an air energy hot air circulation dryer installed outside the hot air drying box, wherein the hot air inlet wall and the hot air exhaust wall are installed on the twosides of the hot air drying box. Dewatering, drying and moisture content adjustment can be completed at a time by adjusting the temperature and dryness of hot air.

Description

technical field [0001] The invention belongs to the field of production of PVB interlayer film PVB film, and in particular relates to a device for adjusting the moisture content of the PVB film. Background technique [0002] One of the processes in the production process of PVB film is drying. No matter it is the roller passing process or the water passing process, the moisture content needs to be adjusted to make it meet the national standard, industry standard and customer requirements. The production process is generally adjusted after drying. Adjusting the moisture content through the air humidity in the workshop is not only time-consuming, but also in the subsequent winding and packaging processes, due to environmental factors such as climate and air humidity, the moisture content Change again, it is difficult to pre-adjust in place. The moisture content of PVB film is an important performance index, which directly affects the performance and quality of subsequent prod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B15/18F26B21/00F26B21/02F26B21/08F26B21/10F26B25/22
CPCF26B15/18F26B21/004F26B21/02F26B21/08F26B21/10F26B25/22Y02P70/10
Inventor 武爱平
Owner 南京亚鼎光学有限公司