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Continuous premixing method for acid ores

A technology of acid ore premixing, which is applied in mixing methods, chemical instruments and methods, mixers with rotating stirring devices, etc. It can solve the problems of inaccurate control of raw material input and continuous premixing, etc., to ensure stability , to ensure the effect of accuracy

Active Publication Date: 2020-02-18
CHONGQING TITANIUM IND OF PANGANG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The beneficial effects of the present invention are: the application prepares qualified mineral materials and qualified concentrated sulfuric acid respectively when performing the premixing of the acid mineral materials, and continuously and simultaneously prepares qualified mineral materials and qualified concentrated sulfuric acid according to the set ratio Input into the continuous premixing tank, and under the set temperature condition, the continuous mixing tank is continuously mixed at the set stirring speed and output, etc. to achieve it, and overcome the inability to exist in the existing premixed materials. The technical problems of continuous pre-mixing, raw material input in pre-mixing cannot be precisely controlled, and fouling caused by intermittent input and intermittent pre-mixing

Method used

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  • Continuous premixing method for acid ores

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Open the inlet and outlet valves of the frozen brine in the premix tank to ensure that the outlet temperature of the frozen brine is lower than 8°C. Turn on the stirring motor of the premix tank, and set the speed to 45 r / min. Turn on the concentrated sulfuric acid feed pump, and set the feed flow to 1.59m according to the process requirements 3 / h. Open the ilmenite conveying belt, then open the valve of the ilmenite silo, and adjust the feeding amount of the ilmenite to 0.85m according to the process requirements 3 / h. The premixed material enters the reaction feed tank and is pumped to the acid hydrolysis reactor, and the acid hydrolysis rate of the acid hydrolysis reaction is 98.24%.

Embodiment 2

[0026] Open the inlet and outlet valves of the frozen brine in the premix tank to ensure that the outlet temperature of the frozen brine is lower than 8°C. Turn on the stirring motor of the premix tank, and set the speed to 60 r / min. Turn on the concentrated sulfuric acid feed pump, and set the feed flow to 3.44m according to the process requirements 3 / h. Open the ilmenite conveying belt, then open the valve of the ilmenite silo, and adjust the feeding amount of the ilmenite to 1.7m according to the process requirements 3 / h. The premixed material enters the reaction feed tank and is pumped to the acid hydrolysis reactor, and the acid hydrolysis rate of the acid hydrolysis reaction is 98.75%.

Embodiment 3

[0028] Open the inlet and outlet valves of the frozen brine in the premix tank to ensure that the outlet temperature of the frozen brine is lower than 8°C. Turn on the stirring motor of the premix tank, and set the speed to 70 r / min. Turn on the concentrated sulfuric acid feed pump, and set the feed flow to 5.12m according to the process requirements 3 / h. Open the ilmenite conveying belt, then open the valve of the ilmenite silo, and adjust the feeding amount of the ilmenite to 2.55m according to the process requirements 3 / h. The premixed material enters the reaction feed tank and is pumped to the acid hydrolysis reactor, and the acid hydrolysis rate of the acid hydrolysis reaction is 99.10%.

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Abstract

The invention discloses a continuous premixing method, in particular discloses a continuous premixing method for acid ore, and belongs to the technical field of design and manufacture of metallurgical raw material production equipment. The invention provides a continuous premixing method for acid ore with sufficient premixing and accurate premixing input quantity. The continuous premixing method includes preparing qualified mineral material and qualified concentrated sulfuric acid respectively, and continuously inputting the qualified mineral material and qualified concentrated sulfuric acid into the continuous premixing tank according to the set ratio at the same time, and at the set temperature Under the conditions, the continuous mixing tank is continuously mixed at the set stirring speed and output in several steps.

Description

technical field [0001] The invention relates to a continuous premixing method, in particular to a continuous premixing method for acid ore, and belongs to the technical field of design and manufacture of metallurgical raw material production equipment. Background technique [0002] The mixing of solid materials and liquid materials is a common chemical production unit in the chemical industry. In the production of titanium dioxide by the sulfuric acid method, the premixing of concentrated sulfuric acid and titanium concentrate is also an important link in the acid hydrolysis process of titanium concentrate. The purpose is to wet the titanium concentrate with concentrated sulfuric acid, and after fully mixing, it enters the acid hydrolysis reactor, and the acid hydrolysis reaction is carried out under the initiation of water or waste acid. At present, the method of intermittent premixing of acid ore is generally used in the production of titanium dioxide by sulfuric acid meth...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01F13/10B01F7/08B01F7/18B01F3/12B01F15/00B01F15/02B01F15/04B01F15/06C01G23/053
CPCC01G23/0532B01F23/53B01F27/72B01F27/90B01F33/821B01F35/2202B01F35/221422B01F35/2215B01F35/75455B01F35/88B01F2035/98B01F35/92B01F2101/2204
Inventor 陈新红刘勇刘源淦文军张剑吴艳
Owner CHONGQING TITANIUM IND OF PANGANG GROUP
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