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Titanium dioxide waste acid purifying treatment apparatus

A technology for purification and treatment of titanium dioxide waste acid, applied in water/sewage multi-stage treatment, titanium oxide/hydroxide, water/sludge/sewage treatment, etc. Problems such as use, high cost and impossibility

Inactive Publication Date: 2015-05-20
ZHENJIANG JINSHENGYUAN INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the general sedimentation method is difficult to effectively remove nano and submicron titanium dioxide particles with fine particle size; high-speed centrifugation method cannot be used in waste acid removal of impurity particles because of the high cost

Method used

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  • Titanium dioxide waste acid purifying treatment apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The structural representation of the purification treatment of titanium dioxide waste acid provided by the present invention is as follows figure 1 Shown: Titanium dioxide waste acid purification and disposal device consists of a separation tank, a sealing cover, a clear liquid outlet, a connector, a sealing ring, a filter element, an inclined plate, an inclined plate separator, the first porous plate, and the second porous plate , and the first support ring, the second support ring, the third support ring, the liquid outlet and the feed liquid inlet; the separation tank and the sealing cover are fixed by a sealing ring through bolts, and a clear liquid is provided on the top center of the sealing cover Water outlet; the upper part of the separation tank is cylindrical, the lower part is a conical structure, the conical bottom is connected with a liquid outlet, and the junction of the cylinder and the conical shape is provided with a feed liquid inlet; the inner side of ...

Embodiment 2

[0015] The structure of the device in this embodiment is as in Example 1, wherein the selected filter element has a pore size of 0.1 μm, and the material of the filter element is polyethylene; the material of the inclined plates is polyethylene, and the distance between the inclined plates is 4 cm; the porous plate is a polyethylene plastic plate , the thickness is preferably 5cm, the circular holes are evenly distributed on the perforated plate, the empty area is preferably 1cm2, and the number of holes per square meter is 2000.

[0016] Pass the titanium white waste acid solution containing powder particles into the feed liquid inlet of the device, and keep the pressure at 0.05MPa. The feed liquid enters the separation tank to form a swirling flow, and some larger particles above the millimeter level sink directly, and contain fine particles. The powder flows through the perforated plate, and first settles through the inclined plate to remove most of the particles with a size...

Embodiment 3

[0018] As in Example 1, the structure of the device is the same as in Example 1, wherein the selected filter element has a pore size of 50 μm, and the material of the filter element is ceramics; the material of the inclined plates is polypropylene, and the distance between the inclined plates is 15 cm; the porous plate is a ceramic plate with a thickness of 1 cm. , 30 square holes with an area of ​​200cm2 are distributed per square meter on the perforated plate.

[0019] Pass the titanium white waste acid solution containing powder particles into the feed liquid inlet of the device, keep the pressure at 0.5MPa, the feed liquid enters the separation tank to form a swirling flow, and some larger particles above the millimeter level sink directly, containing fine The powder of the particles flows through the porous plate, first settles through the inclined plate to remove most of the particles with a size of tens of microns, and then is further filtered through the filter element ...

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Abstract

The invention relates to a titanium dioxide waste acid purifying treatment apparatus. The apparatus is composed of a separation tank, a sealing cover, a filter core, a connector, porous plates, support rings, an inclined plate and an inclined plate baffle plate; the separation tank and the sealing cover are fixed by seal rings, the sealing cover is provided with a clear water outlet, the separation tank has a cylindrical upper portion and a conical lower portion, the conical bottom is provided with a liquid outlet, the lower portion of the cylinder is provided with a liquid inlet, three support rings are arranged in the separation tank from top to bottom, and the lower support ring is a porous plate provided with the inclined plate; and the middle support ring is a porous pate positioned over the inclined plate and provided with the filter core, the upper portion of the filter core is arranged on the upper support ring, and the water outlet of the filter core is connected with the clear water outlet through the connector. A liquid enters the separation tank and forms eddy flow, partial particles directly eddy flow, the liquid goes through a porous plate, upward flows, goes through the inclined plate to precipitate most particles, and goes through the filter core to remove particle impurities, a clear waste acid solution is gathered and obtained from the clear water outlet, and accumulated particle powder is discharged through the liquid outlet.

Description

technical field [0001] The invention relates to a purification device for waste acid solution containing powder, in particular to a purification treatment of titanium white waste acid. Background technique [0002] my country is a big producer and consumer of titanium dioxide, with an annual output of about 1 million tons. At present, most enterprises in our country are mainly based on sulfuric acid production technology. This method produces a large amount of dilute sulfuric acid waste liquid containing titanium dioxide particles in the production process, which is difficult to effectively utilize. The current treatment method is mainly to use distillation to concentrate waste sulfuric acid to a certain concentration and use it to realize turning waste into treasure. Among them, due to the production of titanium dioxide by the sulfuric acid method, especially when producing nano or submicron titanium dioxide products, the discharged waste sulfuric acid still contains a sm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/02C01B17/90C01G23/053
Inventor 盛淑芳
Owner ZHENJIANG JINSHENGYUAN INFORMATION TECH
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