What is a Double pass annealing furnace? Introduction to the advantages, characteristics, and principles of the Forging furnace

Double pass annealing furnaceIt is an important heating equipment before metal forging. It uses natural gas as fuel to heat metal materials through high-temperature flame and smoke generated by combustion to meet the requirements of forging process.，widely used inaerospace,metallurgy,surface treatment,Machinery manufacturing,shipping and other industries，multifunctional, with functions such as heat treatment, temper, quench, anneal and Casting heating，Easy to control,energy saving and environmental protection,energy-efficient,Stable and reliable,Easy to maintain，structure mainly includes: ventilation system, Radiation chamber, recovery of waste heat, convection chamber, combustor and so on。The following is to introduce the Double pass annealing furnace:

1、Brief introduction of Double pass annealing furnace

Double pass annealing furnaceIt is a kind of heating equipment using natural gas as fuel, which is mainly used to heat metal materials to the required forging temperature in a short time.，It has a wide range of uses, including Energy conservation and environmental protection, Metal forging heating, Metal heat treatment, Metal melting and casting and Metal tempering，is a kind of high quality and low price Double pass annealing furnace，the product looks beautiful.，can be customized according to user's needs.。

Double pass annealing furnace

2、Double pass annealing furnace function

Double pass annealing furnacemultifunctional, with functions such as quench, hardening and tempering, Forging heating, normalizing and heat treatment，Strong adaptability,Easy to control,energy saving and environmental protection,Easy to control,Strong adaptability，it is mainly composed of ventilation system, Radiation chamber, furnace chamber, recovery of waste heat and ventilation system，productThe overall structural design is relatively simple。

Double pass annealing furnace

3、Structural characteristics of Double pass annealing furnace

The Double pass annealing furnace has the following structure

1. Waste heat recovery system

Recover the waste heat in the exhaust gas of heating furnace to improve the energy utilization efficiency.

2. Radiation chamber

The heat load of the main place for Double pass annealing furnace heat exchange accounts for about 70%-80% of the whole furnace. The furnace tube in the radiation room conducts heat through flame or high-temperature flue gas, which is mainly radiant heat, so it is called radiation tube.

3. ventilation system

Ensure the gas flow in the furnace and maintain the stability of the atmosphere and temperature in the furnace.

4. furnace chamber

A space for holding metallic materials for heating.

5. Radiation chamber

The heat load of the main place for Double pass annealing furnace heat exchange accounts for about 70%-80% of the whole furnace. The furnace tube in the radiation room conducts heat through flame or high-temperature flue gas, which is mainly radiant heat, so it is called radiation tube.

Double pass annealing furnace

4、Advantages of Double pass annealing furnace principle

Double pass annealing furnacethe principle is simple.The high-temperature flame and flue gas generated when the fuel burns in the furnace are used as heat sources to heat the medium flowing in the tube to reach the specified process temperature. Fuel is ejected from the burner and burned, resulting in high-temperature flame and high-temperature flue gas. The high-temperature flame transfers heat to the furnace tube in the radiation chamber through radiation, and then to the medium in the furnace tube. The high-temperature flue gas enters the convection chamber of the heating furnace upward due to the suction force of the chimney or the action of the induced draft fan, and the heat is transferred to the furnace tube in the convection chamber by convection, and then to the medium in the furnace tube.，is a Double pass annealing furnace，the advantage is The metal material can be heated to the required temperature in a short time, and the production efficiency is improved.、Uniform heating and precise control can be realized, so it is helpful to improve the product quality and yield of metal materials.、Natural gas is used as a heat source, resulting in less waste gas and smoke after combustion, and less pollution to the environment. This will help reduce industrial emissions and improve the atmospheric environment.、Efficient combustion and waste heat recovery system can significantly reduce energy consumption, thus reducing operating costs.、The user interface is friendly, and the operator is easy to use. At the same time, the equipment also has the function of fault diagnosis and alarm, which can find and deal with abnormal situations in time.，the advantage is The use of clean and environmentally friendly natural gas as fuel effectively avoids the adverse effects of chemical reactions between impurities such as coal-fired furnaces and forgings during heating. At the same time, natural gas has high calorific value and high combustion temperature, and the combustion temperature can be further increased by preheating air and fuel. In addition, the gas forging heating furnace also has good heat loss control ability and intelligent control system, which can accurately adjust the ratio of air to natural gas, ensure full combustion of natural gas, and reduce mechanical incomplete combustion and chemical incomplete combustion.、It has the advantages of high heating efficiency, high energy utilization, accurate temperature control, good environmental protection performance, simple operation and strong adaptability.、Natural gas is mainly used as fuel, but some equipment also supports other types of gas or liquid fuel, which has strong fuel adaptability.、Suitable for forging and heating of various metal materials, including steel, aluminum and copper. At the same time, it can also be used in metal heat treatment, tempering and other technological processes.、Using regenerative combustion system or advanced burner design can realize the uniform distribution of temperature in the furnace, ensure the uniform heating of metal materials and improve product quality.，favorable price。

Double pass annealing furnace

5、Double pass annealing furnace HD real shot

Speak directly with facts on the spot。

Double pass annealing furnace

As you can see from the live video.，Shandong yiran energy-saving environment protection co., ltd the product looks atmospheric.。

6、Double pass annealing furnace display

Double pass annealing furnace specifications and models, novel design, beautiful appearance, for our customers to visit.。

Double pass annealing furnace

Note: All the pictures in this article were taken by One-combustion energy saving manufacturer.。

Double pass annealing furnaceIt is an efficient, energy-saving and environment-friendly metal heating device.，features include Strong adaptability, energy-efficient, Easy to maintain, energy saving and environmental protection and Stable and reliable，is a popular Double pass annealing furnace。