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Titanium white slurry continuous filtering and washing device and using method thereof

A washing device and titanium white slurry technology, which is applied to chemical instruments and methods, titanium dioxide, titanium compounds, etc., can solve the problems of low production efficiency, long washing time, high water consumption of equipment, etc., and achieve the effect of increasing production capacity and reducing consumption

Active Publication Date: 2018-03-06
PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These three types of equipment are intermittently operated in production and cannot be operated continuously, so the washing time is longer, and the water consumption of the equipment is higher, the production efficiency is lower, and the processing capacity is weaker.

Method used

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  • Titanium white slurry continuous filtering and washing device and using method thereof
  • Titanium white slurry continuous filtering and washing device and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The pipe diameter of the titanium dioxide slurry continuous filtration and washing device is set to 0.3m, the length is set to 10m, and TiO is added from the feed port 2 Titanium dioxide slurry with a concentration of 200g / L, the flow rate of the titanium dioxide slurry entering the pipeline is controlled to be 4m 3 / h, the flow control of washing water is 12m 3 / h, after washing and filtering for 4h, the conductivity of the end washing filtrate was measured to be 50 μs, and the solid content of the filter cake was 70%. TiO per hour 2 The processing capacity is 0.8t.

Embodiment 2

[0032] The pipe diameter of the titanium dioxide slurry continuous filtration and washing device is set to 0.3m, the length is set to 10m, and TiO is added from the feed port 2 Titanium dioxide slurry with a concentration of 200g / L, the flow rate of the titanium dioxide slurry entering the pipeline is controlled to be 5m 3 / h, the flow control of washing water is 12m 3 / h, after washing and filtering for 4h, the conductivity of the end washing filtrate was measured to be 80 μs, and the solid content of the filter cake was 72%. TiO per hour 2 The processing capacity is 1t.

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PUM

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Abstract

The invention discloses a titanium white slurry continuous filtering and washing device, which comprises a sealed pipeline with a washing water inlet at one end, wherein the pipeline is communicated with a vacuum device, and a filtering layer is arranged on the inner wall of the pipeline; a stirring structure is axially arranged in the pipeline, and the end, provided with the washing water inlet,is also provided with a feed port; a discharge port is formed in the bottom of the other end of the pipeline, and a filtrate outlet and a plurality of washing water outlets are sequentially formed inthe bottom of the pipeline. The invention also provides a method for continuously filtering and washing the titanium dioxide slurry by using the device. The method comprises the following steps: a. opening a vacuum device to make the inside of the pipeline become a vacuum environment; b. starting a stirring structure; c. opening the feed port, and introducing the titanium white slurry into the pipeline; d. opening the washing water inlet, and introducing the washing water into the pipeline; e. under the stirring and pushing of a stirring structure, allowing a washed qualified material to be discharged out of the discharge port, and discharging the filtrate and washing water from the filtrate outlet and the washing water outlet respectively.

Description

technical field [0001] The invention relates to the field of titanium dioxide production, in particular to a continuous filtering and washing device for titanium dioxide slurry and a use method thereof. Background technique [0002] In the titanium dioxide production industry, the commonly used devices for washing and filtering titanium dioxide slurry are leaf filter, plate and frame filter and membrane filter press. These three kinds of equipment all operate intermittently in production and cannot perform continuous operation, so the washing time is longer, and the water consumption of the equipment is higher, the production efficiency is lower, and the processing capacity is weaker. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a continuous filtering and washing device for titanium dioxide slurry, which can realize the continuous process of feeding-washing and filtering-discharging, which can reduce water con...

Claims

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Application Information

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IPC IPC(8): C01G23/047
CPCC01G23/0475
Inventor 王斌杜剑桥王海波吴健春
Owner PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP