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Vacuum rotary table filter and filtering process

A vacuum filter and filter technology, which is applied in the direction of mobile filter element filter, filter separation, separation method, etc., can solve the problems of large processing capacity, affecting titanium yield, unstable titanium dioxide, etc.

Pending Publication Date: 2022-03-04
XIANGYANG LOMON TITANIUM IND CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The filtration quality of the turntable vacuum filter will directly affect the residual titanium content in ferrous sulfate, thus affecting the titanium yield
In the existing technology, the technology of the turntable vacuum filter is relatively mature, but due to the instability in the actual production process of titanium dioxide, and the actual objective factors such as large processing capacity, how to improve the filtering effect of the turntable vacuum filter, thereby Improving the titanium yield in the sulfuric acid titanium dioxide production process has always been an important research direction in the industry

Method used

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Embodiment Construction

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without...

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Abstract

The invention discloses a vacuum rotary table filter and a filtering process, and belongs to the technical field of titanium dioxide production, equipment advantages are utilized to monitor the content of residual titanium in filtered ferrous iron and the content of iron in titanium liquid, and the filtering feeding amount and the washing water flow are controlled through automatic interlocking, so that the filtering efficiency is improved. The quality fluctuation of the titanium liquid caused by manual regulation and control of water quantity is reduced, and the cost is reduced and the efficiency is improved; a three-washing process is adopted, so that the influence on the concentration of the titaniferous solution is reduced while ferrous separation is realized, and the dissolved amount of ferrous in the titaniferous solution is reduced; ferrous sulfate blocked in filter holes of the filter cloth is dredged by adopting a compressed air back flushing method, so that continuous and high-efficiency filtration is realized; by adding one or more scrapers and spray pipes matched with the scrapers, ferrous heptahydrate crystals are progressively washed, filtered and discharged one by one for multiple times in multiple layers, so that the filtering effect is improved, the content of titanium entrained in ferrous sulfate is reduced, the titanium yield is further improved, and the service life of filter cloth is prolonged.

Description

technical field [0001] The invention belongs to the technical field of titanium dioxide production, and in particular relates to a vacuum turntable filter and a filtration process for filtering ferrous iron in titanium liquid in the production of titanium dioxide. Background technique [0002] In modern large-scale production, continuous and stable process operation has always been one of the basic requirements of producers, so the research and improvement of continuous vacuum filters in the industry has always maintained a high degree of attention. Continuous vacuum filter can be divided into drum vacuum filter with outer filter surface, disc vacuum filter, turntable vacuum filter, tipping bucket vacuum filter and belt vacuum filter, etc. Among them, the turntable vacuum filter has the advantages of simple structure, good washing effect, separation of washing liquid and filtrate, and large processing capacity of a single filter for fast dewatering slurry, so it has been wid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D33/60B01D33/50B01D33/46B01D33/80
CPCB01D33/60B01D33/50B01D33/466B01D33/804
Inventor 秦望明
Owner XIANGYANG LOMON TITANIUM IND CO LTD
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