Copper spare parts for Blast Furnace

The copper cooling stave is made of oxygen-free copper plate as the body material, deep hole drilling and automatic welding technology. The copper content reaches 99.95, the electrical conductivity is greater than 98% IACS, and the tensile strength is greater than 200MPa. The copper cooling stave has the characteristics of small thermal resistance, low working temperature and large thermal carrying capacity. In addition to the conventional copper cooling stave, we also provide the design, development, manufacturing and after-sales service of the copper cooling stave in the iron mouth area, the copper cooling stave in the tuyere area, the copper cooling stave with boss, the copper cooling stave in the furnace cylinder, and the various special-shaped copper cooling stave for the overhaul and replacement of the old furnace.

Using oxygen-free copper thick copper plate as the body material, the product has the characteristics of small thermal resistance, low working temperature, large heat carrying capacity, small heat loss, etc., can form a "non-overheating cooling system" in the blast furnace heat flow intensive area, for 15 to 20 years of furnace life requirements to provide a reliable guarantee. It is suitable for new blast furnace and most areas of the old blast furnace body without special assembly conditions.

Under the condition of specific furnace type, in order to optimize the connection between the copper cooling wall and the air port area and the cast iron cooling wall of the furnace body, the problem of excessive gap between the local part of the copper cooling wall and the furnace skin can be eliminated, and at the same time, it can prevent the refractory filler from sliding down and reduce the gas channeling on the cold surface, and can play the role of supporting refractory materials.

This kind of design is mainly aimed at the design of using cooling plate or cast iron cooling wall for the old furnace, and replacing the copper cooling wall during overhaul. Shantou can provide a more reasonable design and manufacturing scheme of copper cooling wall according to the corresponding opening of the old furnace skin and ensuring that the opening of the furnace skin remains unchanged.

Swirl type copper plate tuyere is mainly used in metallurgy, chemical industry and other industries. The blast furnace tuyere is usually installed in the furnace wall between the furnace belly and the furnace bottom, which is directly subjected to the thermal erosion of liquid slag iron and the severe wear of falling hot materials, and the use environment is extremely harsh. Shantou production of the cyclone type copper plate tuyere to forging pure copper plate as raw material, by special molding and processing welding, with a reasonable water flow channel structure, to ensure the requirements of the water flow speed conditions, the service life can be greatly extended, for the blast furnace high production to create a good condition.

The structure size is accurate, the thermal performance is good, the internal water flow channel structure size is strictly controlled, the water flow mechanical parameters are accurate and stable, with a unique cyclone cooling water channel structure, strengthen the cooling effect of the end of the tuyere, the end face according to the furnace condition environment can be used surfacing surface strengthening technology, wear resistance than pure copper plate significantly improved.

The internal use of cyclone waterway design, according to the user to provide the blast furnace specifications, inlet pressure, flow and other parameters, to determine the number of water chambers and the flow area of each water chamber, the internal cooling water flow channel is reasonable. Under the condition of ensuring excellent cooling effect, it provides guarantee for the stable operation of the blast furnace.

The main components are made of pure copper plate forgings, which are made by copper plate forming and welding process. Pure copper forgings have high compactness, high strength, high rigidity, stronger thermal conductivity, and stronger resistance to heat flow impact. The internal water flow channel adopts a scientific and reasonable reciprocating structure. Compared with the cast tuyere middle sleeve with the same specification and wall thickness, the heat conduction capacity, I .e. the water flow speed, is obviously improved. This remarkable feature makes the tuyere middle sleeve in the later stage of furnace service, when the furnace wall erodes and falls off, the middle sleeve is exposed in the furnace, and its working environment is similar to that of the tuyere small sleeve, which can withstand increased heat flow intensity and work in a safe temperature range.

Mainly used in metallurgy, chemical industry and other industries. Blast furnace copper cooling plate is an important cooling element of the blast furnace, installed in the furnace belly, furnace waist, furnace body and other parts. Using the high thermal conductivity of copper, the heat transferred from the blast furnace to the furnace body is taken away by cooling water to protect the refractory material of the furnace body, thus prolonging the life of the furnace body and achieving high yield and low consumption.

According to the needs of users and the type of cooling plate, the water flow channel is scientifically and reasonably designed, the number of single-chamber channels is less than or equal to 6, and the number of double-chamber (double-in and double-out) channels is more than or equal to 8, so as to ensure sufficient cooling intensity and meet the requirements of prolonging the service life of the furnace body under heavy heat load conditions.