Fluorine double-inlet vertical fluorination reactor and use method thereof

A reactor, dual-entry technology, applied in chemical instruments and methods, reactors, manufacturing reactors, etc., can solve the problems of lack of fluorinated ash and slag processing technology, difficult storage of fluorinated ash and slag, etc., and achieve considerable economic and environmental benefits. Significant, yield-reducing effect

Pending Publication Date: 2022-05-31
THE 404 COMPANY LIMITED CHINA NAT NUCLEAR
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Up to now, the existing fluoridation reactors in China adopt the method of slag tank packaging for temporary storage of the fluoridated ash produced, and lack of fluoridated ash treatment

Method used

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  • Fluorine double-inlet vertical fluorination reactor and use method thereof
  • Fluorine double-inlet vertical fluorination reactor and use method thereof

Examples

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Example Embodiment

[0032]A kind of fluorine gas double inlet vertical fluorination reactor, comprising a fluorination reactor body 5, the fluorination reactor body 5 above the fluorination reactor enlargement section 4 and the fluorination reactor feed device 11, wherein the fluorination reactor feed device 11 comprises a horizontally mounted feed screw conveyor and a vertically mounted center feeding tube, wherein the central discharge pipe is located inside the fluorination reactor enlargement section 4, the upper part of the fluorination reactor enlargement section 4 is connected to the filter 13, the filter 13 is provided within the filter 3 and the nitrogen blowback device 12, Nitrogen blowback device 12 with nitrogen inlet 2, nitrogen inlet 2 and filter tube 3 communication, for nitrogen into the filter tube backflushing, in order to remove the solid material adhered to the filter tube 3, nitrogen blowback device 12 is also provided above the uranium hexafluoride gas outlet 1, uranium hexafluo...

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Abstract

A fluorine double-inlet vertical fluorination reactor comprises a fluorination reactor body, a fluorination reactor expansion section and a fluorination reactor feeding device are connected to the upper portion of the fluorination reactor body, a filter is connected to the upper portion of the fluorination reactor expansion section, a filter pipe and a nitrogen back flushing device are arranged in the filter, and a nitrogen inlet is formed in the nitrogen back flushing device. The nitrogen inlet is communicated with the filter pipe, a uranium hexafluoride gas outlet is further formed above the nitrogen back flushing device, and the uranium hexafluoride gas outlet is communicated with the filter pipe; the lower part of the fluorination reactor body is connected with a fluorination reactor gas chamber; a fluorine gas inlet pipe a is arranged on the fluorination reactor gas chamber; and a slag tank is arranged below the fluorination reactor gas chamber. The use method of the fluorine gas double-inlet vertical fluorination reactor comprises the following steps: heating the fluorination reactor body, enabling fluorine gas to enter the fluorination reactor gas chamber and the slag tank, reacting to generate uranium hexafluoride gas, and enabling the filtered uranium hexafluoride gas to flow out of the fluorine gas double-inlet vertical fluorination reactor from the uranium hexafluoride gas outlet.

Description

Technical field [0001] The present invention belongs to the field of fluorination reactor, specifically relates to a fluorine gas double inlet vertical fluorination reactor and a method of use. Background [0002] In the front-end process of the nuclear fuel cycle, uranium conversion is an important link between uranium extraction and fuel element processing, which plays an important role in inheriting the past and the future. In the preparation process of uranium hexafluoride, due to the influence of many factors such as the particle characteristics of raw material uranium tetrafluoride, impurity components and process control, a certain amount of fluoridation reaction residue will inevitably be generated. Depending on the structure of the fluorination reactor, the amount of fluoridation reaction residue produced will also vary. [0003] Improving the fluorination efficiency of vertical fluoridation reactors can not only improve the utilization rate of uranium resources in urani...

Claims

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Application Information

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IPC IPC(8): B01J8/12G21C21/02
CPCB01J8/12B01J8/085B01J8/008G21C21/02Y02P10/20C01G43/066B01J19/2415B01J2219/185B01J2219/1946B01J2219/00135B01J2208/00415B01J8/0045B01J8/003B01J8/004B01J8/087B01J2219/00777B01J2208/00061
Inventor 李天福刘建车陈红卫陈俭刚刘璞邹琛华
Owner THE 404 COMPANY LIMITED CHINA NAT NUCLEAR
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