Raw material preheating production method for smelting titanium slag

A production method and technology of titanium slag, which is applied in the field of preheating production of raw materials for smelting titanium slag, can solve the problems of insufficient utilization of sensible heat of titanium slag electric furnace tail gas, high production costs of enterprises, and high power consumption, so as to save heating time , Save power consumption, reduce the overall energy consumption effect

Inactive Publication Date: 2019-01-25
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

In the existing production mode, the materials are simply input into the furnace and then reacted. Such a production mode often consumes a lot of energy and does not fully utilize the sensible heat of the tail gas of the titanium slag electric furnace. Therefore, the power consumption of titanium slag smelting is relatively high. In disguise, the production cost of enterprises remains high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 6300kVA titanium slag electric furnace, the flue gas temperature is 800°C, the moisture content of titanium concentrate is 8%, the moisture content of anthracite is 10%, the weight ratio of titanium concentrate to anthracite in the mixing bin is 100:15, and the temperature of the mixture after preheating is 350°C, the temperature of titanium concentrate is 300°C, the temperature of anthracite is 280°C, the total weight of the material after preheating is 20t, the power consumption of smelting 80 grade titanium slag directly into the furnace is 2800kWh, and the smelting time of a single furnace is 7h , the power consumption of smelting titanium slag after preheating is 2600kWh, and the smelting time of single furnace is 6h.

Embodiment 2

[0025] 12500kVA titanium slag electric furnace, the flue gas temperature is 1000℃, the moisture content of titanium concentrate is 10%, the moisture content of anthracite is 4%, the weight ratio of titanium concentrate and anthracite in the mixing bin is 100:12, and the temperature of the mixture after preheating is 400°C, the temperature of titanium concentrate is 360°C, the temperature of anthracite is 320°C, the total weight of the material after preheating is 50t, the power consumption of smelting 74 grade titanium slag directly into the furnace is 2500kWh, and the smelting time of single furnace is 8h , the power consumption of smelting titanium slag after preheating is 2300kWh, and the smelting time of single furnace is 6.5h.

Embodiment 3

[0027] 12500kVA titanium slag electric furnace, the flue gas temperature is 1250°C, the moisture content of titanium concentrate is 9%, the moisture content of coke is 8%, the weight ratio of titanium concentrate to coke in the mixing bin is 100:11, and the temperature of the mixture after preheating is 500°C, the temperature of titanium concentrate is 400°C, the temperature of anthracite is 3500°C, the total weight of the material after preheating is 12t, the power consumption of smelting 74 grade titanium slag directly into the furnace is 2400kWh, and the smelting time of single furnace is 10h , the power consumption of smelting titanium slag after preheating is 2250kWh, and the smelting time of single furnace is 8.5h.

[0028] After the smelting method of the present invention, the power consumption is effectively reduced, and the smelting time is also significantly shortened compared with the traditional smelting method, which greatly improves the economic benefits of produ...

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PUM

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Abstract

The invention relates to the field of titanium slag smelting methods, in particular to a raw material preheating production method for smelting titanium slag, which reduces the smelting power consumption of the titanium slag and improves the production benefit of the titanium slag, comprises a titanium slag electric furnace and a heat exchange device, and comprises the following steps : a, introducing the tail gas of the titanium slag electric furnace as a heat source into the heat exchange device; b, carrying out heat exchange on a raw material for smelting titanium slag arranged in the heatexchange device and tail gas of the titanium slag electric furnace so as to finish preheating; and c, introducing the preheated raw material for smelting titanium slag into the titanium slag electricfurnace for smelting production, and finally obtaining a product. According to the invention, the electric energy consumption of the raw material heating part in the titanium slag smelting process issaved, the overall energy consumption of the titanium slag smelting is reduced, the production efficiency of the titanium slag smelting is improved, the high-temperature flue gas of the titanium slagelectric furnace is also utilized, the material is dried, and the selection range of the titanium slag smelting material is enlarged. In addition, as the initial heating time is saved, the productionefficiency is greatly improved. The method is particularly suitable for the titanium slag smelting process.

Description

technical field [0001] The invention relates to the field of titanium slag smelting methods, in particular to a production method for preheating raw materials for smelting titanium slag. Background technique [0002] Electric energy consumption is an important cost component of titanium slag production. Specifically, electric energy consumption accounts for about 30% of the total production cost and about 80% of processing cost. Therefore, reducing smelting power consumption is the persistent goal of titanium slag production enterprises. In the existing production mode, the materials are simply input into the furnace and then reacted. Such a production mode often consumes a lot of energy and does not fully utilize the sensible heat of the tail gas of the titanium slag electric furnace. Therefore, the power consumption of titanium slag smelting is relatively high. In a disguised form, the production cost of enterprises remains high. Contents of the invention [0003] The t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D17/00
CPCF27D17/004
Inventor 韩可喜叶恩东肖军
Owner PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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