Novel copper finery oxy-fuel combustion system

An all-oxygen combustion and copper refining technology, applied in the field of new-type copper refining furnace all-oxygen combustion system, can solve the problems of increased operating costs, low oxygen content, increased operating costs, etc., and achieves simple and easy operation methods and reduced NOX emissions. , the effect of reducing investment costs

Active Publication Date: 2015-07-15
张家港联合铜业有限公司
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Problems solved by technology

At present, in copper refining, natural gas or heavy oil is mainly used as fuel, and natural gas is used as fuel, which greatly increases the entire operating cost. However, when heavy oil is used as fuel and air is used as supporting gas, the oxygen content in the air is low, resulting in fuel in the air. During the combustion process, the combustion is insufficient, the amount of flue gas is high, and at the same time, more NO X is produced during combustion, which makes it necessary to add denitrification equipment during

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  • Novel copper finery oxy-fuel combustion system

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Embodiment Construction

[0017] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0018] see figure 1 As shown, a new copper refining furnace oxy-fuel combustion system includes a fuel pipeline system, a gas-supporting pipeline system, a refining furnace 6 and a control system. In this embodiment, the reverberatory furnace 6 is used as the refining furnace 6 . The fuel pipeline system includes a fuel pipeline 1 for supplying fuel, a heating device 5 arranged on the fuel pipeline 1 for heating the fuel, a fuel regulating device arranged on the fuel pipeline 1 and behind the heating device 5 Valve 11. In this embodiment, the fuel is heavy oil, and the heating device 5 is a heavy oil electric heater 5. The temperature of the fuel after heating should exceed 100°C. Of course, natural gas can also be used as fuel. For example, when natural gas is used as fuel, Then there is no need to use a heati...

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Abstract

The invention discloses a novel copper finery oxy-fuel combustion system. The novel copper finery oxy-fuel combustion system comprises a fuel pipeline system, a combustion supporting gas pipeline system, a finery and a control system, the fuel pipeline system comprises a fuel pipeline for providing a fuel and a fuel regulating valve arranged on the fuel pipeline, the combustion supporting gas pipeline system comprises a pure oxygen pipeline for providing oxygen with the purity of 85-99.9% and an oxygen valve arranged on the pure oxygen pipeline, the refinery is provided with a burner, the burner is provided with a fuel inlet and a plurality of combustion supporting gas inlets positioned in the periphery of the fuel inlet, the fuel pipeline is connected to the fuel inlet on the refinery, and the pure oxygen pipeline is connected to the combustion supporting gas inlets on the refinery. The combustion system has the advantages of simple structure, full fuel combustion, great reduction of requirements of a refractory material in the finery, no increase of a cooling device or a denitration device, great saving of the production cost, and reduction of pollution to environment.

Description

technical field [0001] The invention relates to a new type of full-oxygen combustion system for copper refining furnaces, which is widely used in various copper refining furnaces, such as reverberatory furnaces, rotary furnaces, tilting furnaces and the like. Background technique [0002] At present, various copper refining furnaces such as reverberatory furnaces are widely used in the smelting of non-ferrous metals, such as copper smelting. With the tightening of international energy supply and the increasing energy prices, more and more requirements are put forward for the utilization rate of fuel in the process of copper smelting. At the same time, environmental protection requires a substantial reduction in emissions. At present, in copper refining, natural gas or heavy oil is mainly used as fuel, and natural gas is used as fuel, which greatly increases the entire operating cost. However, when heavy oil is used as fuel and air is used as supporting gas, the oxygen cont...

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Application Information

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IPC IPC(8): C22B15/14
Inventor 吴立成俞鹰王浩熊小辉王庆轮钱宇峰
Owner 张家港联合铜业有限公司
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