Bottom blowing refining furnace and application thereof

A refining furnace and furnace mouth technology, which is applied in the field of bottom blowing refining furnaces, can solve the problems that refining efficiency needs to be improved and the structure is complicated, and achieve the effects of improving redox efficiency, simplifying furnace body structure and reducing equipment cost.

Pending Publication Date: 2019-01-18
CHINA ENFI ENGINEERING CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the structure of the current rotary anode furnace is complicated, and the efficiency of using the existing rotary anode furnace for blister copper refining still needs to be improved

Method used

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  • Bottom blowing refining furnace and application thereof
  • Bottom blowing refining furnace and application thereof
  • Bottom blowing refining furnace and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] The furnace body specification of the bottom-blown refining furnace is Ф5.0m×15.5m, including the rotary furnace and the bottom-blown redox gun. The copper port, the copper discharge port and the burner port, the shell of the rotary furnace is steel structure, lined with refractory material, the copper inlet is also used as the smoke outlet, and there is a smoke hood around it. The copper outlet is set on the side wall of the end of the rotary furnace shell, the copper inlet is set on the upper part of the cylindrical side of the rotary furnace shell at the other end opposite to the copper outlet, and the furnace mouth is set on the middle section of the rotary furnace shell. In the upper part, there is a cooling water jacket at the furnace mouth, and the flue gas is discharged from the copper inlet. The burner mouth is set on the end wall of the rotary furnace shell near the copper outlet, and the burner mouth is equipped with a pure oxygen burner to heat the furnace bo...

Embodiment 2

[0087] The furnace body specification of the bottom-blown refining furnace is Ф4.0m×12.5m, including the rotary furnace and the bottom-blown redox gun. The rotary furnace includes the rotary furnace shell, the furnace mouth, the smoke outlet, the copper inlet, the copper discharge port and the burner mouth. The copper inlet is set on the side wall of the end of the rotary furnace shell, and the copper inlet is set on the end wall of the other end of the rotary furnace shell opposite to the copper outlet, and is located at 300mm from the center line of the furnace body. The mouth is set on the upper part of the middle section of the rotary furnace shell, and the flue gas is discharged from the smoke outlet. The smoke outlet is set on the side wall of the upper part of the furnace body near the copper inlet of the rotary furnace shell, and along the radial direction Above, the smoke outlet is located between the furnace mouth and the bottom blowing redox gun, and close to the fu...

Embodiment 3

[0090]The furnace body specification of the bottom-blown refining furnace is Ф3.6m×11.5m, including the rotary furnace and the bottom-blown redox gun. The rotary furnace includes the rotary furnace shell, the furnace mouth, the copper inlet, and the copper discharge port. structure, lined with refractory material. The copper inlet is set on the side wall of the end of the rotary furnace shell, and the copper inlet is set on the end wall of the other end of the rotary furnace shell opposite to the copper outlet, and is located at 200mm from the center line of the furnace body. The mouth is set on the upper part of the middle section of the rotary furnace shell, and the furnace mouth is equipped with a fume cover, and the flue gas is discharged from the furnace mouth. Seen from the radial direction of the rotary furnace, the bottom blowing redox gun and the copper outlet are located on both sides of the furnace mouth. , and along the circumferential direction of the rotary furna...

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Abstract

The invention discloses a bottom blowing refining furnace and application thereof. The bottom blowing refining furnace comprises a rotary furnace and a bottom blowing redox gun; specifically, the rotary furnace comprises a rotary furnace casing, a furnace opening, a copper inlet and a copper outlet; a hearth space is limited in the rotary furnace casing; the furnace opening is formed in the upperpart at the middle section of the rotary furnace casing; the copper inlet is formed in the rotary furnace casing; the copper outlet is formed in the side wall of the end part of the rotary furnace casing; the bottom blowing redox gun is arranged at the bottom of the rotary furnace casing and extends into the hearth space; the diameter of the bottom blowing redox gunrefining furnace is 38 to 75 cm.The bottom blowing refining furnace does not need to arrange gas permeable bricks or separately arrange a smoke outlet or a burner; a furnace body is simple in structure and low in equipment cost, and can avoid energy consumption loss because the gas permeable bricks are blown with nitrogen; besides, when the bottom blowing refining furnace refines crude copper, the redox efficiency can be remarkably improved, the refining cycle of the crude copper is shortened and the refining effect is improved.

Description

technical field [0001] The invention belongs to the field of nonferrous metallurgy, and in particular relates to a bottom blowing refining furnace and its application. Background technique [0002] At present, most of the fire refining of crude copper adopts rotary anode furnace. The existing rotary anode furnace is usually equipped with a smoke outlet, a furnace mouth, a burner port at the end of the furnace body, a bottom ventilation brick, a side redox port and a copper outlet. . Viewed from the radial direction of the furnace body, the redox port and the copper outlet are distributed on both sides of the furnace port, and the distance between the redox port and the furnace port is smaller than the distance between the furnace port and the copper port. The redox port is on one side of the furnace body, and the copper outlet is on the other side, and the copper outlet is always open or a "slide device" is used for unblocking. Nitrogen is fed into the breathable brick at ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B15/14
CPCC22B15/006
Inventor 李锋尉克俭李鸿飞李兵曹珂菲郝小红冯双杰陆金忠李晓霞李海春刘恺李栋许欣
Owner CHINA ENFI ENGINEERING CORPORATION
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