Drying device with gas hood heating plate

Abstract

The invention relates to a drying device with a gas hood heating plate. The drying device comprises a drying chamber, a plurality of drying cylinders sequentially arranged on the ground of a drying chamber in the paper conveying direction, and an air exhauster mounted at the top of the drying chamber; a paper inlet is formed in the side wall of one side of the drying chamber, a support is installed in the drying chamber, a cover plate is laid on the support, the cover plate is close to the top of the drying chamber, the cover plate covers all the drying cylinders, and a heating assembly is arranged on the cover plate; the cover plate is intercepted between the drying cylinders and the air exhaust; when paper is heated by drying, water in the paper is evaporated; the water vapor rises to contact with the cover plate; the heating assembly enables the temperature of the cover plate to be higher than the temperature of the water vapor; the water vapor cannot be liquefied and can absorb part of heat dissipated by the cover plate, so that the water vapor has enough heat to radiate in the process of bypassing the cover plate and entering a blower, the water vapor is not easy to liquefy inthe drying chamber, and the drying of the paper is not influenced by water dripping.

Description

technical field [0001] The invention relates to the technical field of papermaking equipment, in particular to a drying device with an air hood heating plate. Background technique [0002] Papermaking is an important invention of the working people in ancient China, which can be divided into two forms: mechanism and manual. The mechanism is carried out continuously on the paper machine. The pulp suitable for paper quality is diluted with water to a certain concentration, and is initially dehydrated in the wire part of the paper machine to form a wet paper sheet, which is then dehydrated by pressing, and then dried into paper. [0003] Currently, if figure 1 As shown, there is a drying device used in the papermaking industry, including a drying chamber 1, a frame 9 is arranged in the drying chamber 1, and several drying cylinders 2 are arranged in the frame 9, and there are also convenient working cylinders on the frame 9. A workbench for personnel to observe the overall si...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: the moisture inside the paper is heated to form water vapor to separate from the paper, but when the water vapor touches the top of the drying chamber 1, there is a certain distance between the top of the drying chamber 1 and the drying cylinder 2. The distance and the temperature difference are relatively large, and the water vapor will re-liquefy when it is cold. The liquefied water at the top of the drying chamber 1 will fall in the form of water droplets after accumulating to a certain amount, and fall on the paper below, affecting the drying quality of the paper. In severe cases, the paper will be punctured

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