Method for preparing fluidizing chlorination furnace charge by granulating fine-grained titanium-rich material

A technology of boiling chlorination furnace and titanium-rich material, applied in the direction of titanium halide, etc., can solve problems such as the inability to use boiling chlorination furnace, and achieve the effects of easy mass production, low granulation cost and high drying efficiency

Pending Publication Date: 2022-07-05
CENT SOUTH UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] Aiming at the technical problem that fine-grained titanium raw materials cannot be used in boiling chlorination furnaces because the particle size is less than 150 μm, the present invention provides a method for preparing boiling chlorination furnace charge by granulati

Method used

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  • Method for preparing fluidizing chlorination furnace charge by granulating fine-grained titanium-rich material

Examples

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Effect test

Embodiment 1

[0032] Weigh 500g of fine-grained titanium raw material with a particle size of less than 150μm and put it into the granulation bucket of a high-speed stirring granulator. Set the stirring paddle speed: 300 rpm, stirring time: 2 minutes, and stir the material evenly. The prepared binder solution was evenly sprayed into the fine-grained titanium raw material in the form of atomization through a spray gun, and the rotating speed of the stirring paddle was set: 200 rpm; After the granulation is completed, put the granules into the fluidized bed dryer, set the drying wind speed: 10m / s, the drying temperature: 300°C, and the drying time: 30 minutes. The particle size distribution of the dried product is between 150 and 1000 μm, accounting for 60%, particles larger than 1000 μm accounting for 20%, and particles smaller than 150 μm accounting for 20%.

Embodiment 2

[0034]Weigh 500g of fine-grained titanium raw material with a particle size of less than 150μm and put it into the granulation bucket of a high-speed stirring granulator. Set the stirring paddle speed: 300 rpm, stirring time: 2 minutes, and stir the material evenly. The prepared binder solution was evenly sprayed into the fine-grained titanium raw material in the form of atomization through a spray gun, and the speed of the stirring paddle was set: 200 rpm; After the granulation is completed, put the granules into the fluidized bed dryer, set the drying wind speed: 10m / s, the drying temperature: 300°C, and the drying time: 30 minutes. The particle size distribution of the dried product is between 150 and 1000 μm, accounting for 75%, the particle size larger than 1000 μm accounting for 20%, and the particle size smaller than 150 μm accounting for 5%.

Embodiment 3

[0036] Weigh 500g of fine-grained titanium raw material with a particle size of less than 150μm and put it into the granulation bucket of a high-speed stirring granulator. Set the stirring paddle speed: 300 rpm, stirring time: 2 minutes, and stir the material evenly. The prepared binder solution was evenly sprayed into the fine-grained titanium raw material in the form of atomization through a spray gun, and the speed of the stirring paddle was set: 200 rpm; After the granulation is completed, put the granules into the fluidized bed dryer, set the drying wind speed: 8m / s, the drying temperature: 300°C, and the drying time: 30 minutes. The particle size distribution of the dried product is between 150 and 1000 μm, accounting for 80%, particles larger than 1000 μm accounting for 17%, and particles smaller than 150 μm accounting for 3%.

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Abstract

The method comprises the following steps: (1) weighing a fine-grained titanium raw material, putting the fine-grained titanium raw material into a high-speed stirring granulator, adjusting the rotating speed of a stirring paddle, setting the stirring time, and uniformly stirring the fine-grained titanium raw material; (2) starting a granulator, setting the rotating speed of a stirring paddle, the rotating speed of a cutting knife and the granulating time of the high-speed stirring granulator, spraying the binder solution into the uniformly stirred fine-grain titanium raw material in an atomized form through a spray gun, stirring for set time, and finishing granulating; and (3) putting the product particles obtained in the step (2) into a fluidized drying bed for drying treatment to obtain a dried particle product. The method for preparing the boiling chlorination furnace burden by granulating the fine-grained titanium-rich material has the advantages of high granulation efficiency, good product granule granulation, short granulation procedure and low production cost.

Description

technical field [0001] The invention belongs to the field of non-ferrous metal metallurgy, and relates to a method for granulating fine-grained minerals, in particular to a method for preparing a boiling chlorination charge by granulating a fine-grained titanium-rich material. Background technique [0002] Titanium tetrachloride is an intermediate product in the production of titanium dioxide and titanium sponge. The boiling chlorination method is to produce titanium tetrachloride by contacting and reacting the titanium raw material in the boiling chlorination furnace with chlorine gas through the action of the fluid. The titanium raw material is in a strong relative motion with chlorine gas in a suspended state, the gas-solid contact area is large, the mass transfer and heat transfer efficiency is high, and the material and temperature distribution in the furnace are uniform, so the reaction rate is high. Moreover, the preparation of titanium dioxide by the boiling chlorin...

Claims

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Application Information

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IPC IPC(8): C01G23/02
CPCC01G23/022
Inventor 郭宇峰陈凤杨凌志王帅李冬月侯晓磊郑宇问悦凯
Owner CENT SOUTH UNIV
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