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Manufacturing method of brasque used for smelting metal chromium

A manufacturing method and metal chrome technology are applied in the field of manufacturing furnace linings used for metal chrome smelting, which can solve problems such as affecting the quality of metal chrome products, damage to magnesia bricks that cannot be reused, reducing smelting recovery rate, etc. The effect of cost reduction and difficulty in running the furnace

Active Publication Date: 2012-04-18
锦州钒业有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After each furnace is smelted, the magnesia bricks will be damaged and cannot be reused.
Using this method to manufacture the furnace lining consumes a lot of magnesia bricks, which affects the quality of metal chromium products, reduces the recovery rate of smelting, and increases the production cost

Method used

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  • Manufacturing method of brasque used for smelting metal chromium
  • Manufacturing method of brasque used for smelting metal chromium
  • Manufacturing method of brasque used for smelting metal chromium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Put a pair of semicircular arc-shaped ball mill cast iron furnace pieces 102 on the metal (material can be iron plate, steel plate) chassis 101, the furnace pieces 102 are tightly aligned and sit upright, and the furnace shell 1 is formed after the pins 103 are tightened; 1. A slag outlet 5 is set at a height of 1 / 3 of the upper edge of the furnace plate 102. The cooling water jacket 4 is inserted at the slag outlet 5, and the bottom of the furnace shell 1 is supplemented with magnesia 2, and the thickness of the magnesia 2 is 100mm; The top is provided with the water inlet pipe 9, the water outlet pipe 7 and the steam outlet pipe 8, and the water tire 3 with the seat lugs 6 on both sides is seated in the middle of the furnace shell 1, so that a cavity is formed between the furnace shell 1 and the water tire 3, and Make the cooling water jacket 4 lean against the water tire 3, block the slag discharge port 5 with refractory mud, connect the water tire 3 with the external...

Embodiment 2

[0021] Put a pair of semicircular arc-shaped ball mill cast iron furnace pieces 102 on the metal (material can be iron plate, steel plate) chassis 101, the furnace pieces 102 are tightly aligned and sit upright, and the furnace shell 1 is formed after the pins 103 are tightened; 1. A slag outlet 5 is set at a height of 1 / 3 of the upper edge of the furnace 102, and a cooling water jacket 4 is inserted at the slag outlet 5, and the bottom of the furnace shell 1 is supplemented with magnesia 2, and the thickness of the magnesia 2 is 130mm; The top is provided with the water inlet pipe 9, the water outlet pipe 7 and the steam outlet pipe 8, and the water tire 3 with the seat lugs 6 on both sides is seated in the middle of the furnace shell 1, so that a cavity is formed between the furnace shell 1 and the water tire 3, and Make the cooling water jacket 4 lean against the water tire 3, block the slag outlet 5 with refractory mud, connect the water tire 3 with the external pool throug...

Embodiment 3

[0023] Put a pair of semicircular arc-shaped ball mill cast iron furnace pieces 102 on the metal (material can be iron plate, steel plate) chassis 101, the furnace pieces 102 are tightly aligned and sit upright, and the furnace shell 1 is formed after the pins 103 are tightened; 1. A slag outlet 5 is set at a height of 1 / 3 of the upper edge of the furnace plate 102, and a cooling water jacket 4 is inserted at the slag outlet 5, and the bottom of the furnace shell 1 is supplemented with magnesia 2, and the thickness of the magnesia 2 is 150mm; The top is provided with the water inlet pipe 9, the water outlet pipe 7 and the steam outlet pipe 8, and the water tire 3 with the seat lugs 6 on both sides is seated in the middle of the furnace shell 1, so that a cavity is formed between the furnace shell 1 and the water tire 3, and Make the cooling water jacket 4 lean against the water tire 3, block the slag discharge port 5 with refractory mud, connect the water tire 3 with the extern...

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Abstract

The invention relates to a manufacturing method of a brasque used for smelting metal chromium. The method comprises the following steps: a furnace shell provided with a slag tap is placed on a chassis and magnesite is paved at the bottom of the furnace shell, a cooling water jacket is inserted at the slag tap, a water tire the top of which is provided with a water inlet pipe, a water outlet pipe and a steam outlet pipe is arranged in the furnace shell, so that a cavity is formed between the furnace and the water tire, the cooling water jacket is leaned against the water tire to block the slagtap, and circulating water goes through the water tire; the slag tap of a smelting furnace is opened after the metal chromium is smelted to let liquid smelt slag out from the slag tap of the smeltingfurnace and pour the liquid smelt slag in the furnace shell so that the cavity is filled with the smelting slag, the poured smelting slag is solidified, the water tire is lifted out, the cooling water jacket is pulled out, and the brasque is formed after cooling; and after the brasque is formed, the slag tap is blocked by powdery smelting slag to ensure that slag liquid in a fusion state can not flow out of the slag tap during smelting. The invention uses the smelting slag as the brasque instead of magnesite bricks, thus the manufacturing process of the brasque is simplified, the cost of producing the metal chromium is reduced, the product quality is improved and the market competitiveness is enhanced.

Description

technical field [0001] The invention relates to a method for manufacturing a furnace lining used for smelting metal chromium. Background technique [0002] Metal chromium is mainly used in the steelmaking industry. Metal chromium and nickel, cobalt, iron and other metals can form superalloys, electrothermal alloys, precision alloys, etc., which are used in industrial sectors such as aviation, aerospace, electrical appliances, and instruments. [0003] At present, metal chromium is generally smelted by the method outside the furnace, and the melting point of chromium is relatively high. Therefore, during the smelting process, the charge cannot directly contact the iron furnace shell, and a high-temperature refractory lining must be made on the inner wall of the iron furnace shell. [0004] The traditional furnace lining production method is to place magnesia bricks along the bottom and inner wall of the iron furnace shell in sequence, and then fill the gaps with magnesia. Af...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B34/32
Inventor 齐牧崔传海郭树志金绍祥张玉驰郑中巍王雪辉刘亚凤金梅郭密云
Owner 锦州钒业有限责任公司
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