Trolley Furnace Gas Type Heating Furnace with Regenerative Burner
|FOB Price:||US $10,000-200,000 / Piece|
|Min. Order:||1 Piece|
|Min. Order||FOB Price|
|1 Piece||US $10,000-200,000/ Piece|
|Payment Terms:||L/C, T/T, D/P, Western Union, Paypal, Money Gram|
- Certification: CE, ISO
- Range of Applications: Forging Heating
- Usage: Forging Heating
- Trademark: bonade
- Origin: Changzhou
- Place Style: Horizontal
- Type: Trolley Furnace
- Fuel: Gas
- Specification: 6m× 3m× 2m
- HS Code: 8514101000
Forging heating furnace is widely used in forging heating [for bar, round steel, square steel, steel plate heat, temperature compensation, quenching material LAN on-line heating, local heating, metal materials (such as online forging gear, axle rod bearings, precision forging, extrusion, rolling, heating), shear before spraying heating, quenching and tempering. Hot assembly and integral metal material annealing, tempering.
Many kinds of forging heating furnace, in accordance with the different power supply, heating furnace for forging can be divided into flame heating furnace and electric heating furnace. Two kinds of flame heating furnace according to the different fuel, divided into oil, gas and coal burning furnace, gas furnace with natural gas forging heating furnace and gas heating furnace two according to the structure; a heating chamber, divided into chamber furnace (single room, double chamber furnace) semi continuous and continuous furnace; in accordance with the bottom structure and mechanical form into trolley furnace and rotary hearth furnace (also known as ring furnace). Selection of furnace structure with different production conditions, small batch production. Requirements have great flexibility, should try to choose a room type furnace, medium and large forgings should adopt trolley furnace, mass production of small and medium-sized forgings should be used in rotary hearth furnace furnace. The choice must be from the fuel categories, heating billet quality and size, economic conditions and other comprehensive labor conditions Considering.
The regenerative burner:
Heating equipment of regenerative burner is at the beginning of the 80s British HotWork company and British Gas Corp cooperative development, called RCB type burner (RegenerativeCeramicurner).1996 in October has about 1000 sets of burners in use, 1984 AvestaSheffild for stainless steel strip annealing furnace heating section of one side of the furnace wall, with 9 of the consumption of 1.05GJ/t., although it is unilateral heating the strip temperature difference is + - 5 DEG.1988 RotherhamEngineering
Heating equipment of Steels company in the production of 175t/h billet reheating furnace is 32 to 600 DEG C RCB burner, hot charging when the consumption of 0.7GJ/t, the temperature difference between the furnace + 3 degrees. The disadvantage is the high NOX value of 500 * 10-6. Japan foreign furnace company in 1993 the introduction of this technology, the regenerator and burner group as a whole and the two stage combustion to reduce the NOX value. The type of the principle of open hearth furnace and burner, need to be installed in pairs with alternate use; also need reversing equipment (switching valve and control valve and a timer), i.e. every 20 ~ 30s switching time. Another stove company developed RRX (RotaryRegenerativeCombustionSystem, namely rotary regenerative combustion burner, burner configuration) high efficiency heat exchanger, can continuous combustion. The regenerative heat exchanger regenerator is fixed and regenerator movement type two categories, the former is the flue gas and air (gas Alternate) regenerator through the static, such as RCB type, FDI type; the latter is the flow of flue gas and air are fixed during rotation or move in the regenerator, such as type RRX. Greeley and Changshou City heavy oil nozzle factory cooperation using regenerative burner in room forging furnace has been successfully.1.3m2 the stove installed a regenerative burner, heating furnace cooling to 20 ~ 1200 DEG 25min, flue gas temperature 1100 to 1200 DEG C, the exhaust gas temperature 100 to 150 DEG C, air preheating temperature to 1000 DEG C, the metal heating efficiency of 42.06%. from ignition to 1250 DEG 88.4kg and oil consumption per ton forging, forging furnace is general 350 ~ 450kg/t. heating equipment
The regenerative heating furnace is essentially a combination of efficient heat exchanger and conventional heating furnace body, mainly composed of a heating furnace, regenerator, reversing system and fuel, air supply and exhaust system. The regenerator is the main storage of waste heat recovery type heating furnace flue gas, it is filled with chamber space regenerator that is a part of the flue gas and air flow channels. In heating furnace, the regenerator is always used in pairs, a stove can be used to, can also be used for a few, or even dozens of. In some large-scale heating furnace in China, the most used to 40. Advantages of regenerative heat recovery temperature is more uniform because of the temperature distribution and the heating quality is greatly improved, the qualified rate of products greatly improved. A wider range of choices for fuel oil, heavy oil, natural gas, liquefied petroleum gas and other fuels, especially for the low calorific value of blast furnace coal gas, with gas Have the preheat effect good, expands the scope of application of fuel. Therefore, the fuel consumption is greatly reduced. For the general large-scale heating furnace, energy saving 25%~30%; for heat treatment furnace, energy saving 30%~65%.NOX emissions lower use of energy saving technology in the traditional combustion air preheating temperature is high, the content of NOX in flue gas the more; and the use of regenerative high temperature air combustion technology in the preheated air temperature up to 800 DEG C, NOX formation in furnace but greatly reduced. Due to the regenerative combustion is relatively dispersed in the hypoxic state, no flame center, therefore, there is a lot of low NOx NOx formation conditions. The content of the flue gas, to protect the environment. The metal oxidization is another advantage of low oxygen combustion is reduced by heating the metal oxidation. In addition, the regenerative combustion can also improve the flame radiation intensity, enhanced radiation Radiation heat transfer, improve the yield.
According to the preheating media types can be divided into the following two ways: the regenerative heating furnace to preheat the air and gas and air preheating single way.
According to the structure of the form can be divided into type and channel type burner, the burner type is divided into overall dispersal reversing and reversing group in two ways.
According to the material transport way, divided into the pusher type and step type regenerative heating furnace.
Overall dispersal reversing burner type regenerative heating furnace can realize single burner automatic control operation, similar with the conventional heating furnace, can meet the different requirements for the various steel furnace temperature, furnace temperature control to achieve the flexible group; reversing the regenerative heating furnace in general will be a period of the burner as a whole to carry out centralized control, flexible control of this control mode to achieve all heating, can meet the different requirements of most of the channel type steel furnace; regenerative heating furnace is generally full channel overall control, flexible adjustment can achieve the temperature of the heating steel can only meet the minority requirements, which can't meet the needs of the majority of steel furnace heating.