A kind of high temperature and wear-resistant nano-ceramic valve plate and its technology

Abstract

The invention discloses a high-temperature-resistant and wear-resistant nano-ceramic valve plate and its technology, which adopts the preparation of castables, material testing, manufacture of heat-resistant steel support frame and valve plate formwork, installation of plastic caps, pouring molding, maintenance, First low-temperature baking, second high-temperature firing, finished product acceptance and other steps, before baking and firing, the step of installing a plastic cap is added. After firing, the plastic cap can be melted, so that the anchor nail and the valve The expansion gap can be formed between the plate bodies, which can give the valve plate a certain expansion space, prevent the valve plate from cracking when heated and expand, and prolong the service life of the valve plate. After a low-temperature baking, a second high-temperature baking is added The firing temperature reaches the working condition of actual use, so that after firing, the product is tested by placing the formed valve plate in a medium-high temperature to simulate the working condition to ensure the quality of the product.

Description

technical field [0001] The invention relates to the technical field of valve plates, in particular to a high-temperature and wear-resistant nano-ceramic valve plate and its technology. Background technique [0002] The valve plate is mainly used to adjust the balance of the air volume in the kiln and the air volume in the furnace. In the actual process, the valve plate has to be washed and worn by the high temperature of about 1000 ℃ for a long time, containing chlorine, alkali harmful components, and dust gas. Therefore, in the actual use process Among them, the valve plate castable is prone to peeling off, which makes it lose the balance between the air volume in the kiln and the air volume in the furnace, and has a greater negative impact on the stability of the entire system. At the same time, the existing valve plate is in In an environment where the temperature is constantly changing, the strength and thermal shock resistance are relatively poor. After long-term use, t...

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Problems solved by technology

[0002] The valve plate is mainly used to adjust the balance of the air volume in the kiln and the air volume in the furnace. In the actual process, the valve plate has to be washed and worn by the high temperature of about 1000 ℃ for a long time, containing chlorine, alkali harmful components, and dust gas. Therefore, in the actual use process Among them, the valve plate castable is prone to peeling off, which makes it lose the balance between the air volume in the kiln and the air volume in the furnace, and has a greater negative impact on the stability of the entire system. At the same time, the existing valve plate is in In an environment where the temperature is constantly changing, the strength and thermal shock resistance are relatively poor. After long-term use, the valve plate will be damaged. Therefore, the current situation of the valve plate has short life and more maintenance needs to be improved.

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