Low temperature production method for high speed corrugated board line, and steam system

Abstract

The invention discloses a low temperature production method for a high speed corrugated board line, and a steam system, and belongs to the field of corrugated board production. The low temperature production method mainly comprises the following steps that (1), making preparations; (2), setting base paper wrapping angles; (3), pressing a single-face corrugated board; (4), forming the single-face corrugated board; (5), regulating the clearance between a spreading roller and a scraping roller of a double-face machine and the clearance between contact rods; (6), setting the temperature of multiple preheaters; (7), regulating the spreading roller speed and spreading clearance of the double-face machine; (8), wrapping corners of a multilayered corrugated board; and (9), forming the multilayered corrugated board. According to the low temperature production method, the high speed production of the corrugated board line is achieved by adopting low temperature primary saturated steam, and meanwhile damage to base paper fibers is reduced; and the physical index of the corrugated board is ensured, and the warpage deformation of the produced corrugated board is avoided. The low temperature production method is mainly used for low temperature, low pressure and high speed production of the corrugated board.

Description

technical field [0001] The invention belongs to the field of corrugated cardboard production, and in particular relates to a high-speed corrugated cardboard line low-temperature production method and a steam system. Background technique [0002] In the carton packaging processing industry, the existing corrugated cardboard production and processing equipment needs to use high-temperature saturated steam for high-speed production, and the steam pressure needs to be as high as 9-13kgf / cm 2 , the temperature is as high as 170-195°C. As the country's environmental protection supervision is becoming more and more strict, enterprises are not allowed to burn boilers to supply steam independently, and need to use combined heat and power for centralized heating, so as to save energy and carry out environmentally friendly production. Due to the different matching of thermal power facilities in different regions, there are problems of insufficient heat production or too high moisture ...

AI Technical Summary

Problems solved by technology

Due to the different matching of thermoelectric facilities in different regions, there are problems of insufficient heat production or too high moisture content in steam and too low temperature. As a result, the existing corrugated cardboard production line cannot carry out high-speed production due to the steam pressure and temperature not meeting the standards.

[0003] Secondly, the high-temperature and high-pressure production method in the prior art is to perform high-temperature hot-press molding of corrugated paper between corrugated rollers. Due to high temperature and high pressure, it is easy to cause damage to the base paper fiber, resulting in a decrease in the physical indicators of the produced corrugated board and weakening the corrugated board. Protection performance; and the waste of heat energy in the production process is large, which increases the production cost

At the same time, high-temperature production causes corrugated cardboard to warp and deform due to heat, moisture dissipation or changes in environmental humidity during storage.

Images