Design of Furnace for the Production of Steel Pipe
Pipe production is an important part of modern industry. Steel pipes are widely used in petrochemical, pipeline transportation, power plants, water power plants and so on. The quality of steel pipes is closely related to the quality of the produced materials, so the choice of the furnace used for steel pipe production is particularly important. The furnace should not only meet the requirements of the production process, but also should satisfy the requirements of heat energy saving, environmental protection and safety.
The design of the furnace should meet the needs of steel pipe production, which is closely related to the size and length of steel pipes and the type and performance of materials used in the production of steel pipes. Generally, vertical cylindrical or flat steel furnaces with horizontal or vertical tanks are used. For example, a conical medium frequency furnace is suitable for all kinds of medium and small steel pipes. This type of furnace is generally equipped with an efficient dust discharge purification system. When the furnace works, it can maintain a negative pressure without additional air dedusting equipment.
The furnace temperature is closely related to the quality of the steel products, so it is closely related to the selection of fuel and insulation materials in the design of the furnace. In the production of steel pipes, the furnace temperature must be suitable for the melting characteristics of the material, so the efficiency should be improved. Natural gas, coke oven gas and heavy oil are commonly used as fuel for steel pipe furnaces. Due to the different combustion characteristics of these fuels, their corresponding combustion systems have different design requirements. For fuel combustion system design, a series of theoretical models and practical formulas can be used to make resonable outline design and optimum design.
Besides the selection of heating material and combustion system, the insulation material used in the design of steel pipe furnace is also very important, because it affects the temperature field within the furnace, the heat energy loss and the economic efficiency of the furnace. Nowadays, most furnaces are insulated by fiber materials because of their high temperature resistance and good thermal insulation effect. The most commonly used fiber material is ceramic fiber or silica fiber board. Its insulation material structure can be made into a full lining structure or partition lining structure according to the requirements.
In addition to the design of the furnace itself, the auxiliary equipment used in the production of steel pipes also involves the design of power equipment, process equipment, gas exhaustion equipment, etc. The main purpose of power equipment design is to ensure the normal and efficient operation of the furnace, while the design of process equipment can control the metal requirement, cooling and deformation of the finished product, so as to meet the production and quality requirements of steel pipes.
To sum up, the design of furnace for the production of steel pipes requires not only the consideration of the production process, but also the energy saving, environmental protection and safety requirements. Therefore, it needs to take into account the selection of heating material, combustion system, insulation material, auxiliary equipment and other aspects, so as to make reasonable and effective design of furnace and further obtain excellent performance of furnace and good quality of steel pipes.
