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Latest company case about Countermeasures and solutions for failure of box-type furnace electric furnace transformer
Countermeasures and solutions for failure of box-type furnace electric furnace transformer

2025-04-30

Because the electrode lifting mechanism did not reach the position, the secondary load was heavy when the power was supplied, the two-phase overcurrent tripped, and the light gas alarm was sounded at the same time. After the gas was discharged, the gas was ignited and flammable, and then the power was tested and it ran normally. The collapse of materials in the box-type electric furnace and the physical reaction mechanism in the furnace are easy to cause the secondary current to increase, and even the secondary side electrode short circuit and other phenomena, which have a great impact on the electric furnace transformer. The electric furnace transformer is an electrical equipment operating under harsh working conditions. There was a 12.5MVA ore-fired furnace producing silicon manganese products. Suddenly, two light gas alarm signals occurred, and the alarms generated by the two light gas were highly valued. The first light gas alarm signal was when the furnace was operating normally. Due to the physical and chemical reaction in the furnace, the secondary current increased. The rated current was 206.2A. At that time, it was running at 260A (the industry allows overload operation of 20-30%). The light gas alarm signal appeared. After the power outage, the gas was discharged and the power was supplied normally, and no abnormality was found. However, the second time, the light gas signal is when the furnace is powered on during shift change. The electric furnace transformer is one of the important components of ferroalloy equipment. The operating characteristics of the box-type furnace transformer are: frequent power outages, 24-hour operation, and electrode discharge after the furnace is taken out of the furnace, about 8-12 times. In addition, due to the characteristics of the smelting process, the load fluctuates greatly.
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Latest company case about Advantages of industrial electric furnaces
Advantages of industrial electric furnaces

2025-04-30

With the development of emerging science and technology, various high-performance requirements have been put forward for materials, so that they can be applied to cutting-edge technologies such as computers, communications, lasers, aviation, aerospace, nuclear energy and national defense science; new materials have superior properties such as high temperature resistance, wear resistance, corrosion resistance and high strength, and have shown broad development prospects. The research and production of these materials and performance testing need to be carried out at high temperatures, and the temperature, pressure, atmosphere, temperature field and other process conditions are very strict. The design and development of new high-efficiency thermal equipment and the research on high-temperature generation technology largely determine the further development of materials. The design, construction and commissioning of heat sources used to manufacture high-temperature materials require the same amount of labor and cost as the research and development of new materials. For many materials and products, in addition to atmospheric pressure and vacuum sintering, the application and continuous progress of hot pressing sintering, atmosphere pressure sintering and hot isostatic pressing technology have accelerated the development of industrial electric furnaces. It makes the development of new industrial electric furnaces more difficult and more advanced. Compared with flame kilns, electric furnaces have many advantages: 1. High thermal efficiency. The heating furnace does not need to burn flue gas as a heat transfer medium, there is no heat loss caused by exhaust gas, the space heat intensity is high, and it can reach a very high temperature.2. Good product quality. The atmosphere in the furnace is clean, the furnace temperature can be controlled, the temperature field is uniform and stable, and it can meet the requirements of various firing systems.3. It can be fired in various artificial atmospheres. For example, products can be fired in N2, Ar, H2, O2 and other atmospheres.4. Simple equipment. Small footprint, saving equipment investment.5. Easy to operate. Good working conditions. However, the auxiliary equipment of the electric furnace is relatively complex, and the installation cost and electricity cost are high. Industrial electric furnace is a comprehensive application technology. It requires designers and researchers to have a solid theoretical foundation in heat transfer, gas mechanics, mechanics, electrical engineering, microelectronics and materials science. They should also have rich production practice experience and professional knowledge related to processing and manufacturing. Modern industrial electric furnaces are highly mechanized and automated, and are computer controlled and managed. Industrial electric furnaces are facing comprehensive technological innovations. They need to transform existing industrial electric furnaces, design and develop new energy-saving and multi-purpose electric furnaces, study key furnace components, continuously improve their technical performance, form specialized production, digest and introduce advanced technologies, and improve the overall design and manufacturing level of my country's electric furnace industry.
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Latest company case about The structure and characteristics of the centralized heating furnace
The structure and characteristics of the centralized heating furnace

2025-04-30

A solid bottom furnace is a type of furnace in which the billet is heated on a solid bottom. All the heat required by the billet is supplied by the upper part. Since only one side is heated, this type of furnace is usually only used for heating small-section billets and round tube billets, and the production is low, and usually one-stage or two-stage heating is used. Since there is no bottom water pipe, the insulation is better, so this type of furnace still has a future in energy saving through reform. The two-stage furnace is divided into a preheating section and a heating section along the length of the furnace. The function of the preheating section is to use the high-temperature flue gas from the heating section to preheat the billet to save feed. The two-stage furnace is generally suitable for heating small-section billets. The billet has almost no equalizing time in the furnace and is always in the heating stage. The temperature gradually decreases along the length of the furnace. Since there is no equalizing section, the temperature difference between the inside and outside is large when heating large-section billets. In terms of furnace structure, there is no obvious boundary between the furnace waist and the furnace head of this furnace at the height of the furnace top. The temperature distribution of the three-stage furnace is different from that of the two-stage furnace. The temperature of the heating section rises, and the billet heats faster in this section. The temperature difference on the cross section is also larger. The billet must be heated in the equalizing section before it can be discharged. The billet is heated slowly in the equalizing section, or the surface temperature of the billet is maintained unchanged to increase the internal temperature of the billet. Since the billet does not absorb a lot of heat in the equalizing section, the furnace temperature is slightly lower than that in the heating section. Obviously, the three-stage furnace has higher output and better heating quality than the two-stage furnace, and is suitable for heating thicker billets. Compared with the two-stage furnace, the heating section and the equalizing section of this type of furnace have obvious boundaries in terms of furnace structure. In terms of burner configuration, the waist furnace provides more heat and the head furnace provides less.
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Jiangsu Aopuda Furnace Equipment Co., Ltd.
About Us
China Jiangsu Aopuda Furnace Equipment Co., Ltd.
About Us
Jiangsu Aopuda Furnace Equipment Co., Ltd.
Jiangsu Aopuda Furnace Equipment Co., Ltd. is located in Wanshi Town, Yixing City, Jiangsu Province, an important economic center of the Yangtze River Delta. It is mainly engaged in the manufacture, design, research and development, maintenance, transformation and other supporting services of industrial kilns, drying equipment, and white-automatic control equipment. There are kiln products with furnace temperatures ranging from 150ºC to 3000ºC, and working atmospheres of hydrogen/ammonia ...
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