A non-stick drying cylinder processing technology for a special dryer for food-grade filter paper

Abstract

The invention discloses a processing technology for a non-sticky drying cylinder of a food-grade filter paper specific drying machine. The processing technology comprises the following steps of a) roughing a drying cylinder, b) coating a non-sticky coating layer, c) installing a high-temperature solidifying device, d) solidifying the non-sticky coating layer, e) water-cooling fixing the non-sticky coating layer and f) detaching the high-temperature solidifying device. The drying cylinder is roughened with figures processed on the outer wall of the drying cylinder via a knurling tool, so a filter paper peeling surface is also coarse; the filter paper can be prevented from being stuck to the drying cylinder with the non-sticky layer arranged on the drying cylinder; the drying cylinder can be directly processed and machined in the drying machine, so a drying cylinder detachment procedure can be saved; meanwhile, the non-sticky layer is directly solidified by the high-temperature solidifying device mounted on the drying machine, so the non-sticky layer can be more conveniently formed; compared with the prior art, the processed filter paper is roughed on double surfaces, so filter paper thickness is increased and fluffy; and product quality can be improved.

Description

【Technical field】 [0001] The invention relates to the technical field of filter paper, in particular to a non-stick drying cylinder processing technology of a special dryer for food-grade filter paper. 【Background technique】 [0002] At present, in industrial drying production, the heat sources used are generally steam, resistance wire, electric heating tube, quartz tube, infrared ray and other traditional processes. Especially in the paper industry, dryers have been used for many years to dry paper by steam drying cylinders. This process first requires preheating the drying cylinders. After the drying cylinders reach a certain temperature, the paper is wound. Drying process by drying drum. [0003] However, the surface of the existing drying cylinder is smooth, so the filter paper produced by the drying cylinder with this structure is rough on the side that is not attached to the drying cylinder, and the side that is attached to the drying cylinder is smooth. Therefore, t...

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Problems solved by technology

[0003] However, the surface of the existing drying cylinder is smooth, so the filter paper produced by the drying cylinder with this structure is rough on the side that is not attached to the drying cylinder, and the side that is attached to the drying cylinder is smooth. Therefore, the thickness of the filter paper is low, and the air permeability is poor, so it cannot be suitable for food packaging and use.