Fluid-bed reactor for oxido-reduction sintering of high calcium magnesium titanium slag

A fluidized bed reactor, high calcium and magnesium technology, applied in fluidized bed furnaces, process efficiency improvement, lighting and heating equipment, etc. In order to improve the solid phase residence time distribution, prolong the residence time and shorten the residence time

Inactive Publication Date: 2008-02-06
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When using a common fluidized bed reactor to treat such materials, the bed expansion rate is low, and a bubble phase and a dense phase appear during the fluidization process, and the gas exchange rate between the two phases is very low, resulting in a decrease in the gas-solid contact eff

Method used

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  • Fluid-bed reactor for oxido-reduction sintering of high calcium magnesium titanium slag
  • Fluid-bed reactor for oxido-reduction sintering of high calcium magnesium titanium slag
  • Fluid-bed reactor for oxido-reduction sintering of high calcium magnesium titanium slag

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Effect test

Embodiment 1

[0037] See Figure 1. A fluidized bed reactor with a height of 1800mm and an inner diameter of 86mm for oxidation-reduction roasting high-calcium-magnesium-titanium slag, which mainly consists of a cylindrical column material settling section 1, a cylindrical column material reaction section 2 and a conical The cylinder gas preheating section 3 constitutes.

[0038] The top of a cylindrical column material reaction section 2 is in the shape of a bell mouth, a cylindrical column material settling section 1 is connected to the top of the bell mouth column, and a cylindrical column material settling section 1 is connected at the bottom of the cylindrical column material reaction section. In the conical column gas preheating section 3, in the cylindrical column material reaction section 2, a plurality of baffle plates 6 with holes are fixed on the cylindrical column material reaction section by a plurality of flanges 5 On the wall, the aperture of the baffle plate 6 with holes is ...

Embodiment 2

[0043] See Figure 2. A fluidized bed reactor with a height of 1500mm and an inner diameter of 86mm for oxidation-reduction roasting high-calcium-magnesium-titanium slag, which mainly consists of a cylindrical column material settling section 1, a cylindrical column material reaction section 2 and a conical The cylinder gas preheating section 3 constitutes.

[0044] The top of a cylindrical column material reaction section 2 is in the shape of a bell mouth, and a cylindrical column material settling section 1 is connected to the top of the bell mouth column, and a cylindrical column material reaction section is connected to a bottom end of the cylindrical column material reaction section. In the conical column gas preheating section 3, three pipe columns 12 are installed in the cylindrical column material reaction section 2, and they are distributed in an equilateral triangle. The pipe columns 12 are fixed on the fixing frame 11, and the fixing frame is fixed On the main body ...

Embodiment 3

[0052] See Figure 2. A fluidized-bed reactor with a height of 1800mm and an inner diameter of 100mm for oxidation-reduction roasting high-calcium-magnesium-titanium slag, which mainly consists of a cylindrical column material settling section 1, a cylindrical column material reaction section 2 and a conical The cylinder gas preheating section 3 constitutes.

[0053] The top of a cylindrical column material reaction section 2 is in the shape of a bell mouth, and a cylindrical column material settling section 1 is connected to the top of the bell mouth column, and a cylindrical column material reaction section is connected to a bottom end of the cylindrical column material reaction section. In the conical column gas preheating section 3, three pipe columns 12 are installed in the cylindrical column material reaction section 2, and they are distributed in an equilateral triangle. The pipe columns 12 are fixed on the fixing frame 11, and the fixing frame is fixed On the main body...

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PUM

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Abstract

The present invention relates to a fluidized bed reactor used for oxidizing and deoxidizing and baking high calcium magnesium titanium slag to remove calcium for improving the titanium inert solid grade, and comprises a cylindrical column material settlement section, a cylindrical column material reaction section, and a coniform column air preheating section. The main body of the cylindrical fluidized bed reactor is the cylindrical column material reaction section, and the top part is of a horn mouth shape, the top part of the horn mouth column body is connected with the cylindrical column material settlement section, the bottom end of the reaction is connected with the air preheating section. The upper part of the air preheating section is provided with a material feeding port, and the bottom part is arranged with an air distribution plate under which an air inlet is provided. The lower part of the material reaction is provided with a material discharging port, and the top part is provided with an air outlet. More than one baffle with holes is arranged in the material reaction. The present invention can make the residence time of particles of the high calcium magnesium titanium slag prolong following the increase of the grain size to satisfy the requirements of the reaction time of different grain sizes of particles.

Description

technical field [0001] The invention belongs to the field of gas-solid phase processing reactors, in particular to a fluidized bed reactor used for oxidation-reduction roasting high-calcium-magnesium titanium slag to remove calcium and magnesium and improve the grade of titanium ore materials. Background technique [0002] my country is a country rich in titanium resources, among which the reserves in the west of Panzhihua account for more than 1 / 4 of the world's total. At present, the utilization of titanium resources in titanium-containing minerals is to obtain titanium tetrachloride through the chlorination method, and then produce titanium products such as titanium white and sponge titanium from titanium tetrachloride. However, the content of calcium and magnesium in Panxi titanium ore is high, and the quality of fine titanium ore (also known as high calcium, magnesium and titanium slag) obtained after smelting in an electric furnace is low. Among them, TiO 2 The conten...

Claims

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Application Information

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IPC IPC(8): C22B5/14C22B7/00F27B15/00C22B34/12
CPCY02P10/20
Inventor 朱庆山郝志刚李洪钟黄文来
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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