Scrapping knife device used for cleaning heating cylinder during paper making

Abstract

The invention discloses a scrapping knife device used for cleaning a heating cylinder during paper making. The structure of the device comprises a scrapping knife controlling mechanism, a scrapping knife device and a fixing seat, the scrapping knife controlling mechanism mechanically cooperates with the scrapping knife device, the scrapping knife device is installed on the fixing seat and is mechanically matched with the fixing seat, and the scrapping knife controlling mechanism is arranged in the fixing seat. Through the mutual cooperation of a mechanical meshing structure, a power device, ascrapping knife rotary device, a meshing structure driving device, a rotary shaft control device, the driving device and the scrapping knife device, rubber residues and other substances on the surfaceof the heating cylinder can be scrapped, under the action of rotary scrapping, nonuniform force bearing of a scrapping knife can be prevented, and the scrapping effect is better.

Description

technical field [0001] The invention relates to the field of papermaking technical equipment, in particular to a scraper device for cleaning a drying cylinder during papermaking. Background technique [0002] In the paper industry, for the reuse of resources and environmental protection requirements, the recycling of waste paper is an important measure of the modern paper industry. However, with the increase of waste paper consumption, the quality of recovered waste paper raw materials varies greatly, and the quality of waste paper raw materials cannot be guaranteed, and a large amount of waste paper raw materials will be mixed with garbage or glue impurities. Therefore, in the production process of papermaking, the garbage and glue impurities in the waste paper raw materials will adhere to the surface of the drying cylinder, resulting in poor heat transfer of the drying cylinder, resulting in high steam consumption and increased production costs. In addition, the garbage a...

AI Technical Summary

Problems solved by technology

Therefore, in the production process of papermaking, the garbage and glue impurities in the waste paper raw materials will adhere to the surface of the drying cylinder, resulting in poor heat transfer of the drying cylinder, resulting in high steam consumption and increased production costs.

In addition, the garbage and glue impurities on the surface of the drying cylinder will fall and adhere to the paper surface to cause paper defects. In severe cases, it will cause paper breakage and affect production efficiency.

[0003] In the prior art, the rubbish and glue impurities on the surface of the drying cylinder are treated by using a scraper. The scraper is pressurized by its own gravity and the cylinder installed at both ends. This pressurization method makes each point of the scraper pressurized Therefore, it is difficult to completely eradicate the garbage and glue impurities on the surface of the drying cylinder by the above treatment method

Moreover, during the production process, the air pressure of some drying cylinders will be set relatively low, and the garbage and glue impurities will adhere more tightly to the surface of this part of the low-pressure drying cylinder, making it more difficult to be eradicated

[0004] The scraper device used to clean the drying cylinder in the prior art papermaking is not perfect, and the scraper is prone to uneven scraping due to uneven force

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