Energy-saving drying device for papermaking equipment

Abstract

The invention discloses an energy-saving drying device for papermaking equipment. The energy-saving drying device comprises a drying box; a preheating device and an infrared drying device are installed in the drying box and separated by a partition plate, a paper material spreading device is arranged above the infrared drying device, and a heat energy recovery device is arranged above the paper material spreading device; the heat energy recovery device comprises a condensation plate fixedly mounted on the inner wall of the drying box, a condensate water collecting tank is formed in the bottomof the condensation plate, and a steam trap valve is mounted on the condensate water collecting tank; the condensation plate is of a double-layer structure, the bottom surface of the condensation plate is in a wave shape, a cooling water inlet is formed in the top of the condensation plate, a hot water discharge port is formed in the bottom of the condensation plate, and a flow equalization boardis arranged on the top of a hollow layer of the condensation plate. According to the energy-saving drying device, not only can paper materials be quickly dried, but also heat generated in the drying process is effectively utilized, and the energy-saving drying device has the advantages of high efficiency and energy saving.

Description

technical field [0001] The invention relates to the field of drying equipment, in particular to an energy-saving drying device for papermaking equipment. Background technique [0002] Infrared rays are electromagnetic waves with a wavelength of 0.72-1000 μm. Usually, those with a wavelength above 5.6 μm are called far-infrared rays, and those with a wavelength below 5.6 μm are called near-infrared rays. In industry, far-infrared rays are often used to dry materials. Because the wet material and water have a very wide absorption band in the far infrared region, it has a strong absorption effect on certain frequencies of far infrared rays in this region, so this method has the advantages of fast drying speed, good drying quality and high energy utilization rate. Advantages, but the infrared is easily absorbed by water vapor and other losses. [0003] There are many types of far-infrared radiation elements, which are generally composed of three parts: a substrate, a coating o...

AI Technical Summary

Problems solved by technology

[0006] (1) In the process of using the energy-saving drying device for papermaking equipment in the prior art, the water vapor generated during the infrared drying process absorbs infrared rays, resulting in low efficiency of infrared heating and drying, and energy consumption also increased relatively;

[0007] (2) In the prior art, the energy-saving drying device used for papermaking equipment has a large heat loss during the use process, and it needs to consume more energy to complete the drying of the same amount of paper material

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