Improved structure of ceramic metalized sintering kiln door

Abstract

The invention discloses an improved structure of a ceramic metalized sintering kiln door. The structure comprises a kiln door, a frame, a lifting mechanism, pulleys and a compressing mechanism, the pulleys are arranged at two sides of the kiln door, a slideway in sliding fit with the pulleys is formed in the frame, a movable gap is thus formed between the kiln door and a kiln opening, grooves in the kiln opening direction is formed in the inner wall of the slideway,; when the kiln door descends to a closing position, the pulleys fall into the grooves and the kiln door moves horizontally to approach the kiln opening, the compressing mechanism transversely applies a pressure to the kiln door to seal the kiln opening, and reversely, the compressing mechanism transversely moves to release pressing, the pulleys are withdrawn from the grooves, the kiln door is driven to life and leave from the kiln opening, the movable gap to the kiln opening is ensured, and the kiln door is lifted to realize opening. According to the scheme, through the closing mode of firstly attaching and then pressing and the opening mode of firstly isolating and then sliding, powder generation is avoided, the service life is prolonged, the product quality is also improved, the production cost is reduced, and traditional defects are overcome comprehensively.

Description

technical field [0001] The invention relates to the technical field of kiln equipment, in particular to an improved structure of a kiln door, which is suitable for sintered ceramic metallized products. Background technique [0002] Ceramic metallized products are sintered in a metallized kiln. The metallized kiln is an atmosphere kiln, and it is a push-plate type kiln for continuous production. The product enters from one end and exits from the other end. The internal gas is hydrogen, and the kiln has a kiln mouth. The opening and closing of the kiln mouth is controlled by the corresponding kiln door. Because the kiln mouth frequently enters and exits products, it needs to be opened frequently, so there should be a gap between the kiln mouth and the kiln door. Good anti-friction design, and form a good seal. At present, there are two types of furnace mouth seals generally used in kiln manufacturing, as follows: [0003] (1) The kiln door (metal plate) lifts and slides to s...

AI Technical Summary

Problems solved by technology

[0003] (1) The kiln door (metal plate) lifts and slides to seal the kiln mouth (metal): the sealing method is a hard seal, which relies on the direct surface-to-surface contact between the metal kiln door and the metal kiln mouth to form a seal. It is strictly required that the board surface is flat and free of deformation, and the metals are directly rubbed during the sliding sealing process, and the metal powder will fall off during the friction, causing product pollution

[0004] (2) Plug-in valve sealed kiln door: a plug-in valve is installed at the kiln mouth, and the plug-in plate (metal plate) slides relative to the kiln mouth, but there is no hard seal between the two, but a soft seal, that is, a soft seal between the two The room is sealed by double-sided sealing material. Although the sealing effect is better than that of the hard seal, it is still unable to overcome the friction between the sealing material and the metal plate in the case of frequent opening, and there will also be powder falling and polluting the product. question

[0005] The defects and impacts brought about by the two: some of the contaminated products become waste products; some need post-processing, and the processing of products requires manpower, material resources and time

If the friction is serious and the hydrogen leaks in the kiln, it needs to be repaired, and the kiln needs to be stopped, but it is very troublesome to stop the kiln, and the heating and cooling cycle of the kiln is long, which directly affects the production progress.

[0006] In summary, the defects caused by the two existing sealing methods have one thing in common, that is, friction. How to overcome friction is the starting point of the inventor's design, and this case arises from this

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