1T melting furnace technical parameters and configuration instructions

1 T melting furnace technical parameters

1)      Model: GWT-1T/750KW               ;

2)      Working temperature melting rate : about 1T / H ;

3)      Incoming phase voltage: 380v, 3*660V , 6*660V

4)Maximum temperature: 1600-1800 °C               ;

5)      Equipment rated power 750kw ;

6)      Electric furnace rated voltage: 3000v ;

7)      With power supply specifications: KGPS-1/750;

1 T melting furnace configuration

1 T melting furnace main equipment function configuration and technical description

1 T smelting furnace frequency power supply a rectifier cabinet :( cabinet and a Motor Module)

Cabinet body is made of cold rolled steel sheet is not less than 1.5 mm thick high strength. Opening the door makes it easy to access parts such as rectification and inverter. There are hooks on the top of the power cabinet for easy transportation and installation. A closed isolation control room is arranged at the upper part of the front door, and control components such as a main control board, a feedback board, and a control power supply are provided, so that the signal of the main control board can be conveniently observed. The power-receiving part of the circuit breaker is Delixi DW 15 . They are equipped with a manual switch and an undervoltage coil for interlock protection. It consists of a circuit breaker, a voltage transformer, a current transformer, and the like. The rectification part circuit adopts 6- pulse or 12-pulse circuit rectification mode, the incoming line voltage is 380 V or 660V , and the rectifying part of the thyristor adopts the latest stacked heat sink assembly. Filter the network reactor to level the DC current, remove the current ripple, and prevent high-frequency signals from entering the factory power supply line. Inverter part of the thyristor is connected in parallel with the RC absorption circuit, which acts as a buffer when the thyristor switch is used. A set of series resonant capacitor compensation device, in order to meet the output capacitance is mounted withinthe closed cabinet inverter.

Description of the furnace body of 1 T melting furnace :

The furnace body is composed of a furnace shell, a fixed frame, a tilting furnace mechanism, an induction coil, a yoke, etc., and is additionally provided with a furnace lining material and a leaking furnace alarm device. The furnace shell of the melting furnace is a squirrel-cage frame structure welded by steel plate, and the lower part of the furnace shell has a fixing bracket of the furnace lining mechanism. The fixed hob adopts high-strength integral steel structural parts to ensure long-term work without deformation. The furnace platform is made of 10mm pattern steel plate. Two tilt-mounted plunger hydraulic cylinders are used. The hydraulic cylinder inlet is directly connected to the speed limit shut-off valve (flow control valve) to prevent the furnace from being sharp due to pipeline rupture and other reasons. The downturn caused an accident, and the tilting furnace was controlled by a manual speed control reversing valve.

Induction coil (ie, inductor) induction coil is made of TU1 type grade (purity of 99.97% electrolytic copper) and extruded rectangular copper tube with wall thickness of 4 mm. It is wound on a special mold, and the pitch error is not more than 2mm. After the welding, it must be subjected to stress relief treatment.

The yoke is laminated with Z11 high-quality crystal oriented cold-rolled silicon steel sheet, and its thickness is ≤0.3mm, which is clamped on both sides with stainless steel. The yoke has a contoured arc-shaped structure that is consistent with the outer diameter of the coil. After assembly, the bending degree is ≤ 4mm, and the deviation between the theoretical center line and the actual center line is ≤ 3mm. The yoke covers the area of the induction coil ≥60%.

The hydraulic device is mainly composed of two parts: a hydraulic pump station and a hydraulic console.