CN2375939Y - Oxygen gun with refractory protective coating - Google Patents

Abstract

The utility model relates to an oxygen gun with no slag adhesion and a refractory protective layer. The utility model is composed of a protective layer (1), a gun body (2) and a gun head (3). The utility model has the characteristics that the slag is prevented from adhering, the gun body of the oxygen gun is protected from being eroded and damaged, the service life is long, etc.

Description

What have the refractory material protective layer is not stained with slag oxygen rifle

The utility model be pneumatic steelmaking with a kind of have a refractory material protective layer be not stained with slag oxygen rifle.

At present, the general unprotect layer of oxygen rifle used of pneumatic steelmaking.In the oxygen blast process, slag constantly splashes on the oxygen gun body shell, and because of in the oxygen rifle shell high-pressure cooling water effect being arranged, the temperature difference is very big in rifle body case surface temperature and the stove, and slag is mingled with the part molten steel and splashes condensation rapidly on the rifle body case, causes on shell wall and is stained with slag.Along with service time and number of times increase, slag is stained with thicker and thicker, so that influence oxygen rifle discrepancy fire door.And it is very difficult again that slag is stained with in cleaning, and operating condition hard working intensity is big, also very easy damage oxygen rifle.

The purpose of this utility model is: provide a kind of have a refractory material protective layer be not stained with slag oxygen rifle, be stained with the slag problem in order to solve the oxygen rifle.

The utility model adopts following technical scheme

On the rifle body case, enclose the thick refractory material protective layer of 30mm-40mm by certain method.Contain chemical elements such as alundum (Al, magnesia, charcoal in its refractory material.Because of this protective layer has adiabatic function, enter the stove rear surface and heat up gradually, inner chilling temperature can not be transmitted to the surface very soon.After slag splashed refractory surface, the jail was not stained with in condensation rapidly.Because of containing certain carbon element in the protective layer, the high temperature slag promptly produces oxidation reaction after meeting charcoal again, and slag comes off immediately.

Owing to adopted above scheme, can solve the difficult problem that the oxygen rifle is stained with slag effectively, also protected the rifle body not weather simultaneously, prolonged service life.

The drawing explanation

Fig. 1. be the vertical face cut-away view of oxygen rifle, 1. refractory material protective layers, 2. rifle bodies, 3. rifle heads among the figure.

Fig. 2. be oxygen rifle cross section cut-away view

Claims (2)

1, a kind of have a refractory material protective layer be not stained with slag oxygen rifle, this oxygen rifle is made up of refractory material protective layer (1), rifle body (2), rifle head (3), it is characterized in that the protective layer of being made up of multiple refractory material on the rifle body.

2, according to claim 1 have a refractory material protective layer be not stained with slag oxygen rifle, it is characterized in that: Main Ingredients and Appearance is alundum (Al, magnesia, charcoal etc. in the refractory material protective layer.