Introduction to Direct fired annealing heating furnace, advantages, characteristics and principles of heating furnace

Direct fired annealing 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 Machinery manufacturing, Household necessities, electron, shipping and war industry，is developed and improved by One-combustion energy saving。The following is to introduce the Direct fired annealing heating furnace:

1、Brief introduction of Direct fired annealing heating furnace

Direct fired annealing heating 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.，the main features are Easy to maintain, Easy to control, energy-efficient, energy saving and environmental protection and Strong adaptability。

Direct fired annealing heating furnace

2、Direct fired annealing heating furnace function

Direct fired annealing heating furnaceit has the functions of Forging heating, hardening and tempering, heat treatment, Forging heating and quench，is a common Direct fired annealing heating furnace，the advantage is Adopting advanced combustion technology and materials, it has a long service life and low maintenance cost.、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.、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.、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.、It can improve the plasticity and fluidity of metal materials, reduce the difficulty and cost of forging, and improve product quality and production efficiency.，it is an ideal choice for customers to buy Direct fired annealing heating furnace。

Direct fired annealing heating furnace

3、Direct fired annealing heating furnace function

Direct fired annealing heating furnacemultifunctional, with functions such as anneal, temper, normalizing, Casting heating and hardening and tempering，The overall structural design is simple and novel.，the main structure includes convection chamber, ventilation system, combustor, Radiation chamber and recovery of waste heat，It has a wide range of uses, including Improve production efficiency, Improve production efficiency, Metal melting and casting, Metal heat treatment and Energy conservation and environmental protection，the product looks atmospheric.，widely used in aerospace, surface treatment, building materials, chemical industry, automobile and other fields。

Direct fired annealing heating furnace

4、Direct fired annealing heating furnace performance advantage

The advantages of Direct fired annealing heating furnace are as follows:

1. Wide application range

The Direct fired annealing heating furnace is 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.

2. Intelligent control

The Direct fired annealing heating furnace is usually equipped with an intelligent control system, which can automatically adjust the parameters such as gas supply and air flow according to the heating demand, and realize accurate control of the temperature and atmosphere in the furnace.

3. Multiple fuel options

Although the Direct fired annealing heating furnace mainly uses natural gas as fuel, some equipment also supports other types of gas or liquid fuel, which has strong fuel adaptability.

4. Extend the service life of equipment

The Direct fired annealing heating furnace adopts advanced combustion technology and materials, which has a long service life and low maintenance cost.

5. Reduce operating costs

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

Direct fired annealing heating furnace

5、Structural advantages of Direct fired annealing heating furnace

The Direct fired annealing heating furnace has the following structure

1. 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.

2. Waste heat recovery system

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

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. combustor

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

Direct fired annealing heating furnace

Direct fired annealing heating furnaceat work,Heat of combustion based on fuel. Fuel gas (such as natural gas, liquefied petroleum gas, etc.) is mixed with combustion-supporting air through the burner and burned to produce high-temperature flame and flue gas. These high-temperature flames and smoke exchange heat with metal materials in the furnace, so that they gradually heat up to the temperature required for forging.，it has the functions of heat treatment, anneal, normalizing, Forging heating and quench，Commonly used inEnergy conservation and environmental protection,Metal tempering,Metal melting and casting,Metal heat treatment,Metal forging heating and so on。