Three spraying methods of refractory spray coating material

 The spray coating construction shall be tested according to the construction manual provided by the manufacturer of the spray coating spleen number to determine the appropriate parameters, such as wind pressure, water pressure, etc.

Spraying is carried out by spraying machines and spray guns. The refractory spray paint is compressed air or mechanical pressure in the pipeline to obtain sufficient pressure and flow rate, and sprayed onto the sprayed surface through the nozzle to form a firm spray coating.

The spraying methods of refractory spray coatings are divided into three types: wet method, dry method and flame method.

(1) Wet spraying.

Wet spraying refers to the refractory spray paint sprayed onto the sprayed surface after adding water or liquid binder. Wet spraying is divided into four types: mud method, wet method, semi-dry method and pseudo-dry method. The latter three methods are suitable for spraying furnace construction or spraying furnace lining.

The mud method is to mix the refractory mixture into a slurry before spraying, and is mainly used for thermal gunning of furnace lining;?

The wet method is to stir the refractory mixture into pumping mud and then spray;

The semi-dry method is to add the refractory mixture first A small amount of water is stirred evenly.

When it is delivered to the nozzle, the remaining water is added and then sprayed; The false dry method is to stir the refractory mixture evenly through a mixer, and then send it to the nozzle to add water for spraying.

(2) Dry spraying.

Dry spraying refers to spraying the mixed refractory spray paint directly onto the sprayed surface through the nozzle, which is mainly used for repairing the furnace.

(3) Flame spraying.

Flame spraying means that the mixed refractory spray paint is transported to the nozzle by the high-speed flow of oxygen in the pipeline, and then sprayed out together with the combustible gas. The material advances during combustion and is sprayed onto the sprayed surface in a molten state. This method is mainly used to repair the furnace lining by thermal spraying, without damage to the original furnace lining, the spray coating is easy to sinter, and has a long service life.

We Changxing Refractory Material Co.,LTD is professional manufacturer and supplier of refractory materials for more than 30 years. Our high quality refractory products are good sold to many countries say South Africa, Bangladesh, Indonesia, Malaysia, etc. Shall any interests, welcome to contact us. Our team would make best to be your reliable partner!

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