A method for improving cooling efficiency of titanium slag

A technology of cooling efficiency and titanium slag, applied in the direction of improving process efficiency, etc., can solve the problems of low cooling efficiency, shortened cooling time, and long process flow, and achieve the effects of improving cooling efficiency, saving processing time, and simplifying the processing process

Active Publication Date: 2018-03-06
PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing titanium slag cooling treatment process has disadvantages such as low cooling efficiency, long cooling time, large water consumption, and long process flow, requiring as large a slag cooling site as possible, high subsequent crushing costs, and large differences in particle size of new crushed products, which limit the efficiency of titanium slag. The improvement of slag production capacity hinders the optimization of titanium slag smelting technology and the reduction of production costs
The purpose of the present invention is to provide a high-efficiency titanium slag cooling treatment method, which can not only solve the problem of large water consumption for cooling titanium slag, but also save the process of slag pot or slag tank preparation, hanging slag and slag block breaking , which greatly simplifies the cooling process of titanium slag out of the furnace, shortens its cooling time, improves the cooling efficiency by 3 to 4 times, and greatly reduces the cooling cost of titanium slag

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The method for improving the cooling efficiency of titanium slag specifically comprises the following steps:

[0040] a. Granulation of molten titanium slag:

[0041] After the molten titanium slag comes out of the furnace, it enters the porous rotary barrel of the rotary barrel granulator (hole diameter 15mm). The molten titanium slag is driven by the rotation of the porous rotary barrel at a speed of 400r / min, and is thrown out of the hole, and then the molten titanium slag is blown out of the hole, and then the nitrogen flow rate is 100L / min. Granulated into particles in a protective atmosphere to obtain granulated titanium slag at a temperature of 1175°C; among them, the diameter of the porous drum is 1m, the height of the drum is 2m, the diameter of the drum granulator is 10m, and the height of the fence is 3m;

[0042] b. Rapid cooling of granulated titanium slag:

[0043] Send the above-mentioned granulated titanium slag into the silo which is surrounded by nitr...

Embodiment 2

[0048] The method for improving the cooling efficiency of titanium slag specifically comprises the following steps:

[0049] a. Granulation of molten titanium slag:

[0050] After the molten titanium slag comes out of the furnace, it enters the porous drum of the drum granulator (hole diameter 35mm). The molten titanium slag is driven by rotation at a speed of 900r / min in the porous drum, and is thrown out of the hole, and then the molten titanium slag is blown out of the hole at a flow rate of 120L / min nitrogen gas. Granulated into particles in a protective atmosphere to obtain granulated titanium slag at a temperature of 1094°C; the diameter of the porous drum is 1m, the height of the drum is 2m, the diameter of the drum granulator is 10m, and the height of the fence is 3m;

[0051] b. Rapid cooling of granulated titanium slag:

[0052] Send the above-mentioned granulated titanium slag into the silo leading to nitrogen around it. The nitrogen flow rate is 1200L / min, and the...

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Abstract

The invention discloses a method for improving the cooling efficiency of titanium slag and belongs to the technical field of titanium slag smelting. According to the method, a porous rotary drum which rotates is adopted for pelletizing molten titanium slag, pelletized titanium slag is quenched with nitrogen, cooled pelletized titanium slag is screened and crushed, and finished titanium slag is obtained. By means of the method, the problem that the water consumption of a traditional titanium slag cooling method is large can be solved, moreover, the procedures of slag basin or slag tank preparation, slag hanging, slag block crushing and the like can be omitted, the out-of-furnace cooling treatment procedure of the titanium slag is greatly simplified, the cooling time of the titanium slag is shortened, the cooling efficiency is increased by 3-4 times, and the cooling cost of the titanium slag is reduced.

Description

technical field [0001] The invention belongs to the technical field of titanium slag smelting, and relates to a method for cooling titanium slag, in particular to a method for improving the cooling efficiency of titanium slag. Background technique [0002] At present, the mainstream process of cooling titanium slag produced by electric furnaces at home and abroad is: molten titanium slag enters the slag basin or slag pot after being discharged from the furnace (the slag pot contains about 5-15 tons of slag, and the slag pot contains about 20-40 tons of slag. The amount of slag can be selected from 4 to 10 slag pots or 2 to 4 slag tanks), and after standing for 10 to 20 minutes, spray water into the slag pot or slag tank to cool until the surface of the titanium slag is cooled to below 200°C. About 4.5-6 hours, the cooling time of titanium slag in the slag pot is longer than that of the slag pot. After the titanium slag is cooled, it forms a dense large slag block. After the...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): C22B7/04C22B34/12
CPCC22B7/005C22B7/04C22B34/12Y02P10/20
Inventor宋兵韩可喜肖军李凯茂刘娟缪辉俊
OwnerPANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP