Seamless Steel Pipe Walking Beam Heating Furnace

This series of actions forms a cycle, and the trajectory of the movable

furnace bottom movement is a rectangle. The time of this cycle is called the "cycle", and the distance that the billet moves forward in one movement of the movable furnace bottom is called the "stroke".

In this way, the walking beam heating furnace can achieve uniform heating of the billet, while avoiding the arching and sticking steel failures that may occur in the push-steel furnace, thereby ensuring the efficiency and safety of the heating process‌. In addition, the design of the walking beam heating furnace allows the billets to be placed at intervals on the furnace bottom or beam, which not only allows the billets to be heated quickly and evenly, but also makes the length of the furnace not limited by the problems of arched steel and sticking steel, thus improving the heating efficiency and product quality.
The walking beam heating furnace is mainly composed of the following systems:

Furnace structure:

It is built by steel structure frame and refractory materials, and is divided into preheating section, heating section and soaking section;

Stepping device:

It includes walking beam, driving mechanism (hydraulic cylinder/electric push rod), guide structure, etc.;

Combustion system:

It adopts natural gas or coke oven gas burner with proportional adjustment, automatic ignition and flame monitoring;

Control system:

PLC+HMI system realizes heating curve setting, combustion adjustment, temperature control and whole machine linkage;

Entrance and exit device:

steel pipe inlet roller system, out-of-furnace transmission mechanism and roller cooling bed docking equipment;

Heat recovery system (optional):

Use exhaust gas heat to preheat combustion air or billet to improve energy utilization.

Good heating uniformity

Stepping transmission avoids rolling of steel pipes in the furnace, and eliminates local overheating or excessive temperature difference

No scratches on steel pipes

No rotational friction, especially suitable for high value-added pipes such as alloy steel and stainless steel

High combustion efficiency

Partition control + waste heat recovery system, comprehensive thermal efficiency can reach more than 70%

High degree of automation

Realize unattended operation, support remote monitoring and data acquisition

Strong adaptability

Flexible adjustment of heating curve according to steel pipes of different diameters and wall thicknesses

Long service life

Stable equipment structure, furnace lining uses high-strength energy-saving materials, low maintenance cost

Intelligent control system: integrated big data analysis, cloud platform remote operation and maintenance, AI heating optimization control;

Green and low-carbon design: combustion optimization + waste heat recovery + low-nitrogen burner to reduce carbon emissions;

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