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Double-furnace alternate continuous smelting system

A melting furnace and main control cabinet technology, applied in the direction of furnace, furnace type, AC network circuit, etc., can solve the problems of high equipment investment cost, low smelting efficiency, poor performance of anti-electromagnetic interference, etc., and achieve low cost, anti-electromagnetic Good interference performance and safe operation

Inactive Publication Date: 2018-07-10
武汉重冶集团大冶重型装备有限公司
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of poor anti-electromagnetic interference performance of the existing smelting furnace smelting control system, low smelting efficiency when using a single smelting furnace, and high equipment investment costs when using multiple smelting furnaces together. Provide a double furnace alternate continuous smelting system

Method used

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  • Double-furnace alternate continuous smelting system
  • Double-furnace alternate continuous smelting system
  • Double-furnace alternate continuous smelting system

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Embodiment Construction

[0014] see Figure 1-3 , a dual-furnace alternate continuous smelting system, comprising a primary transformer 1, two melting furnaces 2, a main control cabinet 3, and a rectifier cabinet 4, a capacitor cabinet 5, and an inverter cabinet 6 matched with each melting furnace; The main control cabinet 3 is provided with a high-voltage chamber 7 and a low-voltage chamber 8. In the high-voltage chamber 7, there are two reactors 9. In the low-voltage chamber 8, a power module 10 and two corresponding to the two melting furnaces 2 are respectively arranged. Block smelting furnace main control panel 11; circuit breaker 12, secondary transformer 13 and three-phase uncontrollable rectification circuit 14 are provided in rectifier cabinet 4; LC filter circuit 15, capacitor assembly 16 and voltage sampling are provided in capacitor cabinet 5 Circuit 17; a drive circuit 18, an inverter circuit 19 and a current sampling circuit 20 are provided in the inverter cabinet 6.

[0015] see figur...

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Abstract

A double-furnace alternate continuous smelting system comprises a primary transformer, two smelting furnaces, a master control cabinet, rectifier cabinets, capacitor boxes and inverter cabinets. The rectifier cabinets, the capacitor boxes and the inverter cabinets are matched with the smelting furnaces respectively. The master control cabinet is provided with a high-voltage chamber and a low-voltage chamber, two electric reactors are arranged in the high-voltage chamber, and a power module and two smelting furnace master control boards corresponding to the two smelting furnaces are arranged inthe low-voltage chamber. A circuit breaker, a secondary transformer and a three-phase uncontrollable rectifier circuit are arranged in each rectifier cabinet. An LC filter circuit, a capacitance component and a voltage sampling circuit are arranged in each capacitor box. A drive circuit, an inverter circuit and a current sampling circuit are arranged in each inverter cabinet, and an output side of each inverter circuit is connected with the corresponding smelting furnace through an interlock switch. The double-furnace alternate continuous smelting system is low in cost, safe in operation, great in anti-electromagnetic interference performance and high in automation degree, simultaneous power supply to the two smelting furnaces is realized, onsite control of one smelting furnace in smelting and the other melting furnace in heat preservation is realized, and accordingly smelting efficiency is greatly improved through the alternate operation.

Description

technical field [0001] The invention relates to the technical field of smelting furnace smelting control, in particular to a double-furnace alternate continuous smelting system. Background technique [0002] At present, when designing the smelting control system of the smelting furnace, the control method adopted is that one smelting furnace is independently controlled by a set of control systems. In this control system, the transformer first steps down the input side power supply. Then it is rectified, voltage stabilized, and inverted, and then sent to the melting furnace to control the operation of the melting furnace. Yet find in smelting, there are following problems in the smelting operation of single smelting furnace: (1) smelting efficiency is low, is difficult to finish smelting work fast, needs many to cooperate to finish together, for example: to smelting matte to go through the first The first slagging period, the second slagging period and the copper-making peri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B15/00C22B4/08C22B4/04H02J3/00
CPCC22B15/005C22B4/04C22B4/08C22B15/0095H02J3/00
Inventor 黄伟钱文斌
Owner 武汉重冶集团大冶重型装备有限公司
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