Introduction to Direct injection heating furnace, introduction to forging furnace advantages and characteristics

Direct injection heating furnaceIt is a forging heating device using gas as fuel.，it has the functions of hardening and tempering, heat treatment, Casting heating, Forging heating and hardening and tempering。

1、Brief introduction of Direct injection heating furnace

Direct injection heating furnaceIt is an efficient, energy-saving and environment-friendly metal heating device.，is developed and improved by One-combustion energy saving。

Direct injection heating furnace

2、Direct injection heating furnace structure

The Direct injection heating furnace has the following structure

1. furnace chamber

A space for holding metallic materials for heating.

2. Radiation chamber

The heat load of the main place for Direct injection heating 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. convection chamber

The high-temperature flue gas discharged from the radiation chamber is used for convective heat transfer to further heat the metal materials.

4. Waste heat recovery system

Used to recover the exhaust heat of the heating furnace. There are two kinds of recovery methods, one is to recover by preheating combustion air, so that the recovered heat can return to the furnace again; The other is to use another recovery system to recover heat. The former is called air preheating mode, and the latter is usually called waste heat boiler mode.

5. combustor

The device that mixes natural gas with combustion-supporting air and ejects it is the core component of the heating furnace.

Direct injection heating furnace

3、Structural advantages of Direct injection heating furnace

The Direct injection heating furnace has the following structure

1. Radiation chamber

The heat load of the main place for Direct injection heating 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.

2. furnace chamber

A space for holding metallic materials for heating.

3. ventilation system

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

4. convection chamber

The material is heated by convection heat transfer of high temperature flue gas discharged from the radiation chamber. Flue gas washes the tube wall of the furnace tube at a high speed to carry out effective convection heat transfer, and its heat load accounts for about 20%-30% of the whole furnace. The convection chamber is generally arranged above the radiation chamber, and some are placed on the ground alone. In order to improve the heat transfer effect, nail head tubes or finned tubes are often used in furnace tubes.

5. combustor

The device that mixes natural gas with combustion-supporting air and ejects it is the core component of the heating furnace.

Direct injection heating furnace

4、Introduction of advantages of Direct injection heating furnace

The advantages of Direct injection heating furnace are as follows:

1. Efficient combustion

The Direct injection heating furnace adopts advanced combustion technology and control system, which can realize full combustion of natural gas and improve combustion efficiency. At the same time, some equipment is also equipped with waste heat recovery system, which can further recycle the waste heat in exhaust smoke and improve energy utilization efficiency.

2. Reduce operating costs

The efficient combustion and waste heat recovery system of the Direct injection heating furnace can significantly reduce energy consumption, thus reducing operating costs.

3. Uniform heating

The Direct injection heating furnace adopts regenerative combustion system or advanced burner design, which can realize uniform distribution of temperature in the furnace, ensure uniform heating of metal materials and improve product quality.

4. easy to operate

The operation interface of the Direct injection heating furnace is friendly and easy for operators 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.

5. clean energy

Natural gas, as a clean energy source, produces less waste gas and dust after combustion, which has little pollution to the environment. This will help reduce industrial emissions and improve the atmospheric environment.

Direct injection heating furnace

5、Direct injection heating furnace use

The purpose of Direct injection heating furnace is introduced as follows:

1. Metal melting and casting

Although it is mainly used for forging heating, some types of Direct injection heating furnaces can also be used in metal melting and casting processes. This is especially suitable for melting and casting of small or special alloys.

2. Energy conservation and environmental protection

The Direct injection heating furnace uses clean energy as fuel, which has lower emissions and higher energy efficiency than traditional coal-fired or oil-fired stoves. This is helpful to reduce environmental pollution and realize green production.

3. Metal forging heating

The Direct injection heating furnace can heat the metal material to the temperature required for forging, improve its plasticity and fluidity, and thus facilitate forging. This is very important for the forging of various metal materials.

4. Metal tempering

By properly heating and cooling the metal material, the Direct injection heating furnace can realize the quenching and tempering treatment of the metal. This is helpful to adjust the hardness and toughness of metal to meet the needs of different workpieces.

5. Metal heat treatment

In addition to forging heating, Direct injection heating furnaces can also be used for metal heat treatment processes, such as annealing and tempering. These processes can improve the microstructure and properties of metal materials, and improve their service life and mechanical properties.

Direct injection heating furnace

6、Direct injection heating furnace structure composition

The Direct injection heating furnace structure is introduced as follows:

1. Radiation chamber

The heat load of the main place for Direct injection heating 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.

2. ventilation system

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

3. convection chamber

The high-temperature flue gas discharged from the radiation chamber is used for convective heat transfer to further heat the metal materials.

4. Waste heat recovery system

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

5. furnace chamber

A space for holding metallic materials for heating.

Direct injection heating furnace

Direct injection heating furnaceIt is a kind of equipment which uses gas as fuel and is specially used for heating metal before forging.，it is widely used in surface treatment, aerospace, heat treatment, machinery, metallurgy and other industries。