Tuyere special for hot air drying of gravure press and drying oven with same

Abstract

The invention discloses a tuyere special for hot air drying of a gravure press and a drying oven with the tuyere. The tuyere comprises a tuyere box, a tuyere air inlet is formed in the end of the tuyere box, a left flow guide face and a right flow guide face are arranged in the tuyere box, one side of the left flow guide face and one side of the right flow guide face are connected with a left inner wall and a right inner wall of the tuyere box respectively, a left air outlet face and a right air outlet face which are symmetrical are connected with the other side of the left flow guide face and the other side of the right flow guide face respectively, a left platform area and a right platform area which are symmetrical are connected with the free side of the left air outlet face and the free side of the right air outlet face respectively, and a left bevel air guide area and a right bevel air guide area which are symmetrical are connected with the free side of the left platform area and the free side of the right platform area respectively. Because the tuyere of the new structure is adopted and the drying oven is reasonably arranged, the hot air drying time can be prolonged, the utilization efficiency can be improved, the function of optimizing a hot air velocity field, a temperature field, velocity distribution and pressure distribution is achieved, effective running of a whole drying system is guaranteed, and the actual effect of more even drying can be achieved.

Description

technical field [0001] The invention relates to a drying device for a gravure printing machine, in particular to a special air nozzle and an oven for hot air drying of a gravure printing machine. Background technique [0002] Gravure printing machine is the basic equipment of packaging printing. Gravure printing plays an important role in printing production. It mainly includes the printing of various packaging paper, plastic film and other flexible packaging materials. It is widely used in food, medicine, chemical industry, tobacco and other industries. [0003] In recent years, with the continuous improvement of printing speed of gravure printing equipment, drying efficiency has become one of the important factors limiting the development of equipment. The current high energy consumption in the drying process has greatly increased production costs and seriously consumed energy. Designing a high-efficiency hot air drying system is one of the problems to be solved urgently f...

AI Technical Summary

Problems solved by technology

Through the process of hot air drying, it can be found that the structure and arrangement of the air nozzles determine the final contact state of the hot air with the material, which has an important impact on the speed and distribution of the hot air. The structures of the air nozzles and ovens in the prior art are different. Reasonable, resulting in low drying efficiency and high energy consumption, which cannot meet the needs of the industry

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