A labyrinth wind blocking device for printing and dyeing industry

Abstract

Labyrinth wind blocking device for printing and dyeing industry. The utility model relates to a labyrinth-type wind-blocking device for preventing hot air from radiating out of a drying room in the printing and dyeing industry. It includes the fixed wind resistance ring set on the inner side of the insulation board of the drying room and the rotating wind resistance ring set on the guide roller and rotating with the guide roller. Both the fixed wind resistance ring and the rotating wind resistance ring are set by several horizontal lines of different sizes. It consists of a fixed barrel ring retaining ring with a fixed wind blocking ring and a rotating barrel retaining ring with a rotating wind blocking ring. The stroke is arranged in a labyrinthine channel with multiple turns. The invention provides a labyrinth-type wind blocking device with low cost, good leakage blocking effect, convenient operation and durability.

Description

technical field [0001] The invention relates to a sealing device, in particular to a labyrinth-type air blocking device for preventing hot air from radiating out of a drying room in the printing and dyeing industry. Background technique [0002] In the textile, printing and dyeing industry, there are several rotating guide rollers in the drying room of the hot air drying equipment, and the working temperature in the drying room is between 120°C and 220°C, and the guide roller shafts must wear The thermal insulation door panel protrudes out of the drying room to install supporting bearings to ensure reliable lubrication and normal operation of the bearings. Because the insulation door panel is fixed, and the guide roller shaft is rotating, so the guide roller shaft must have a gap with the insulation door panel hole in order to ensure the flexible operation of the guide roller when passing through the insulation door panel. If effective leak-proof measures are not taken, the...

AI Technical Summary

Problems solved by technology

However, due to the high working temperature in the drying room, the silicone rubber is easily aged, deformed, even cracked and hardened. There is a hard contact, so that the guide roller is stuck and cannot run

[0006] Graphite wind-blocking rings are low in cost and have a long service life, but their leak-proofing effect is poor; although silicone rubber wind-blocking rings have good leak-proofing effects at the beginning of use, their cost is high, their service life is short, and replacement is troublesome

Therefore, both of these two wind blocking devices have obvious defects, and cannot meet the current requirements of high-performance, energy-saving hot air drying equipment.

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