Energy-efficient calendering device for cardboard paper with function of adjusting smoothness

Abstract

The invention discloses an energy-efficient calendering device for cardboard paper with the function of adjusting smoothness. The energy-efficient calendering device comprises a frame, a metal roller, a heat roller, a temperature control system, a heat preservation cover, scraper devices, a microwave generator, a microwave cover, a hydraulic cylinder and a controller. The bottom of the frame is provided with a hydraulic device, the temperature control system and a power device. The metal roller, the heat roller and the scraper devices are arranged ahead of the frame. The hydraulic cylinder is arranged on the metal roller. The heat roller is connected with the power device and the temperature control system. The hydraulic cylinder is arranged outside the heat roller. The middle portion of the frame is provided with the microwave generator and the microwave cover. The controller is arranged on the lateral side of the frame. The energy-efficient calendering device for cardboard paper with the function of adjusting smoothness has following beneficial effects: circulating oil is heated by a heating wire; pressure control is achieved by means of a horizontal hydraulic cylinder; pre-heating operation is performed by the microwave cover; the heat preservation cover is arranged outside of the heat roller so that heat efficiency is effectively utilized and energy consumption is reduced; temperature control precision is improved; due to the medium-high design of the metal roller, calendaring efficiency is prevented from becoming poor due to flexural deflection; a pneumatic tyre moves the scraper device so that stickies on the surface are effectively removed; and cleanliness and surface quality are improved.

Description

technical field [0001] The invention relates to the field of technical equipment for manufacturing cardboard paper, in particular to an energy-saving calendering device with adjustable smoothness for cardboard paper. Background technique [0002] In the process of paper product manufacturing, paper usually needs to be calendered. Equipping a double-roll calender on the paper machine production line has two main purposes: one is finishing, improving the smoothness, gloss and tightness of the paper web , or improve smoothness and gloss while maintaining bulk; the second is to correct the thickness of the paper web, or maintain uniform tightness. [0003] The calenders used in the prior art are mainly divided into two types: one is the traditional hard calender, which is widely used in various paper mills. Its hot roll adopts chilled cast roll, and steam or Hot water is used to adjust the temperature of the roll surface; the other is a soft calender, which transfers heat and m...

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Problems solved by technology

[0004] The deficiencies in the prior art are: the hot roll in the hard calender, the temperature distribution of the roll surface is very uneven, the heat loss is very large, resulting in excessive energy consumption, the use effect is not ideal, and the temperature of the roll surface is generally low, The drying cost is increased, the line pressure cannot be adjusted quickly, and the smoothness of the paper cannot be guaranteed; while the soft calender equipment has high investment costs, high maintenance costs, and troublesome roll replacement, it is difficult for small and medium-sized enterprises to popularize and use it.

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