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Chlorination furnace slurry return device and method

A technology of chlorination furnace and slurry return, applied in the direction of titanium tetrachloride, titanium halide, etc., can solve problems such as easy blockage, poor atomization effect, unstable negative pressure of chlorination furnace, etc., and achieve reduction of impurity content, fog Good chemical effect and fine particle size

Pending Publication Date: 2021-02-26
云南国钛金属股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the poor atomization effect of the spray head of the chlorination furnace return slurry device in the prior art and easy blockage, it is easy to cause local temperature imbalance in the chlorination furnace, and the negative pressure of the chlorination furnace is unstable when the spray volume is adjusted. Titanium tetrachloride furnace Gas cannot be in full contact with the mud spray, which will increase the impurity content in the crude titanium tetrachloride, etc.

Method used

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  • Chlorination furnace slurry return device and method
  • Chlorination furnace slurry return device and method

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Experimental program
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Effect test

Embodiment 1

[0034] In this embodiment, the spray pipe 5 and the power wave nozzle 6 are welded together, the power wave nozzle 6 is located in the chlorination furnace 7, the chlorination furnace 7 is provided with a flue port 8, the material of the power wave nozzle 6 is 316 stainless steel, and the power wave nozzle 6 is made of 316 stainless steel. The nozzle of the wave nozzle 6 faces away from the flue mouth 8, the distance between the power wave nozzle 6 and the flue mouth 8 is 80cm, and the end of the spray pipe 5 away from the power wave nozzle 6 is provided with a dredging port 1, and the dredging hole 1 is a round hole. The pipe wall of the shower pipe 5 is provided with a feeding port 2, the feeding port 2 is connected with the feed pipe 3, the angle between the feed pipe 3 and the spray pipe 5 is 90°, and the pipe wall of the feed pipe 3 is connected with a A nitrogen pipeline, the nitrogen pipeline is connected with a third valve 4, and the third valve 4 is connected with a ni...

Embodiment 2

[0040] The technical solution of this embodiment is basically the same as that of Embodiment 1, the difference is that:

[0041] In this embodiment, the material of the power wave nozzle 6 is 321 stainless steel, the spray pipe 5 and the power wave nozzle 6 are screwed together, the distance between the power wave nozzle 6 and the flue mouth 8 is 70cm, and the feed pipe 3 The included angle with the spray pipe 5 is 45°.

Embodiment 3

[0043] In this embodiment, the power wave nozzle 6 is blocked, and the mud in the spray pipe 5 is accumulated. The pressure transmitter 11 detects that the pressure in the feed pipe 3 exceeds the normal range, and transmits the data to the control system. The control system controls the first valve. 16 is closed, and the first pneumatic valve 13 and the third valve 4 are controlled to open simultaneously, and the mud part flowing through the second valve 14 enters the return line, and flows back into the titanium tetrachloride tank 17 through the first pneumatic valve 13, while the nitrogen tank 9 release nitrogen, nitrogen enters the feed pipe 3 through the third valve 4, and purges the spray pipe 5 and the power wave nozzle 6, but due to too much mud accumulation, the power wave nozzle 6 fails to dredge, and the chlorination furnace returns to slurry The whole equipment of the device is powered off, waiting for maintenance personnel to dismantle and repair, and discharge the ...

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Abstract

The invention belongs to the field of manufacturing of metallurgical production equipment, particularly relates to a chlorination furnace slurry return device and method, which solve the problems thata spray head is poor in atomization effect and easy to block, local temperature imbalance of the chlorination furnace is easily caused, negative pressure of the chlorination furnace is unstable during spray amount adjustment, titanium tetrachloride furnace gas cannot be in full contact with slurry spray, and the impurity content in the crude titanium tetrachloride is increased, and the like. Thedevice comprises a spray pipeline and a dynamic wave spray head, the spray pipeline is connected with the dynamic wave spray head, the dynamic wave spray head is located in a chlorination furnace, thechlorination furnace is provided with a flue port, and a nozzle of the dynamic wave spray head is back to the flue port. The spray head is better in atomization effect and not prone to blockage, thepressure and temperature in the furnace during spray are stabilized, titanium tetrachloride furnace gas makes full contact with slurry spray, and the impurity content in crude titanium tetrachloride is reduced. The method is suitable for returning the titanium tetrachloride slurry to the chlorination furnace in molten salt chlorination.

Description

technical field [0001] The invention belongs to the field of metallurgical production equipment manufacturing, and in particular relates to a chlorination furnace pulp return device and method. Background technique [0002] At present, the production of titanium tetrachloride at home and abroad mainly consists of molten salt chlorination and boiling chlorination. Combined with the characteristics of high calcium and magnesium content of titanium ore in my country and the technical blockade of boiling chlorination technology abroad, the production of titanium tetrachloride in my country is mainly in the form of molten salt chlorination. In the process of molten salt chlorination production, in order to control the furnace temperature and the impurity content of crude titanium tetrachloride, titanium tetrachloride with high impurity content is usually returned to the chlorination furnace to realize the removal of impurities and the removal of impurities in the mud again. Cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G23/02
CPCC01G23/022
Inventor 王立陈建立何永旭和奔流李建军朱辉杨存明梁德志普洪平祝永红张飞刘文代斌刘峰
Owner 云南国钛金属股份有限公司
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