CN104623969A - Titanium dioxide waste acid purification and pretreatment device - Google Patents
Titanium dioxide waste acid purification and pretreatment device Download PDFInfo
- Publication number
- CN104623969A CN104623969A CN201310543535.9A CN201310543535A CN104623969A CN 104623969 A CN104623969 A CN 104623969A CN 201310543535 A CN201310543535 A CN 201310543535A CN 104623969 A CN104623969 A CN 104623969A
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- China
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- separation tank
- waste acid
- filtration core
- porous plate
- knockout drum
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Abstract
The invention relates to a titanium dioxide waste acid purification and pretreatment device, which consists of a separation tank, a sealing cover, a clear liquid outlet, a sealing ring, a filter element, a connector, a perforated plate, supporting rings, a feed liquid inlet and a liquid discharging port, wherein the separation tank is fixed with the sealing cover through bolts by adopting the sealing ring; the clear liquid outlet is formed in the sealing cover; the upper part of the separation tank is cylindric, and the lower part of the separation tank adopts a conical structure, the conical bottom of the separation tank is connected with the liquid discharging port, and the feed liquid inlet is formed at the lower part of the cylindric upper part of the separation tank; one supporting ring is installed above the feed liquid inlet on the inner side of the separation tank; the perforated plate is placed on the supporting ring; the bottom of the filter element is placed on the perforated plate; the upper part of the filter element is installed on the other supporting ring above the inner side of the separation tank; and a water outlet of the filter element is connected with the clear liquid outlet through the connector. The titanium dioxide waste acid purification and pretreatment device solves the difficult problem of removing nanoscale and submicron-sized petty titanium dioxide with lower cost.
Description
Technical field
The present invention relates to wastewater treatment, particularly a kind of impurity and purification device of the waste acid liquor containing powder, is specifically related to a kind of titanium white waste acid purification and pretreatment device.
Background technology
China is titanium white production and consumption big country, and annual production is at about 1,000,000 tons.Current China most enterprises is based on Production By Sulfuric Acid Process technology.This technology is comparatively simple, but produces dilute sulfuric acid impure in a large number in process of production, is difficult to effective utilization.Current processing method, mainly adopts way of distillation thickened waste sulfuric acid to be used to finite concentration, realizes turning waste into wealth.Wherein, due to Titanium White Production By Sulfuric Acid Process, when particularly production nanometer or other titanium dioxide product of submicron order, still containing a small amount of titanium dioxide particulate in the Waste Sulfuric Acid of eliminating, this directly has influence on the follow-up use of Waste Sulfuric Acid.About the removal of granule foreign, patent of invention " recycles the method and apparatus that titanium dioxide waste acid by sulfuric acid process produces the concentrated sulfuric acid ", and employing precipitation method removal granule foreign is mentioned in the inside.But general sedimentation method is difficult to effectively remove the tiny nanometer of particle size and sub-micron titanium dioxide particle; High speed centrifugation method can not be removed on impurity particle at spent acid because cost is too high and use.Therefore, the titanium dioxide that first this type of spent acid must clarify removing nanometer or sub-micron just can be used, for the spent acid impurities removal containing fine particle impurity produced in nanometer or other titanium dioxide process of producing product of submicron order, reasonable selection parting material is very important with design separator structure.
Summary of the invention
The object of the present invention is to provide a kind of titanium white waste acid purification and pretreatment device, to realize the object removing solid particle polluter in titanium white waste acid, improve the clarity of titanium white waste acid, for later use does clarification removal of impurities pretreatment.
Technical scheme of the present invention: a kind of titanium white waste acid purification and pretreatment device, is made up of knockout drum, seal cover, clear liquid delivery port, sealing ring, filtration core, connector, porous plate, support ring, liquor inlet and leakage fluid dram; Wherein knockout drum and seal cover adopt sealing ring to be bolted, it seal cover is clear liquid delivery port, knockout drum top is cylindric, bottom is pyramidal structure, and conical lower portion is connected to leakage fluid dram, below cylinder, support ring is housed, support ring is placed with porous plate, be placed on bottom filtration core on porous plate, filtration core top is arranged on the support ring of knockout drum inside front, and the delivery port of filtration core is connected with clear liquid delivery port by connector.
The aperture of described filtration core is preferably 0.2-50 μm; Filtration core material is pottery or macromolecular material, and preferred macromolecular material is polyethylene, polypropylene, Kynoar or polysulfones etc.
The preferred plastic plate of porous plate or ceramic wafer; The preferred 1-5cm of porous plate thickness.
Preferred described porous plate is uniformly distributed the hole of circular hole, square hole or other shapes; The preferred 1-200cm of area in each hole
2; Empty number on the porous plate of every square area is 30-2000; Porous plate mainly plays a part to support filtration core.
By the liquor inlet of pump by this device of the titanium white waste acid solution containing powder granule, general maintenance pressure is 0.05-0.3MPa, feed liquid enters knockout drum and forms eddy flow, larger particles more than part grade directly sinks, powder containing fine particle is by porous plate upper reaches, filter further through filtration core and be trapped, the spent acid removing granule foreign collects the waste acid liquor obtaining clarifying from the clear liquid delivery port on top through filtration core; Walk the granular powder progressively accumulated under knockout drum discharged by the leakage fluid dram bottom knockout drum and reclaim powder.
Accompanying drawing explanation
Fig. 1 is the structural representation of titanium white waste acid purification and pretreatment device of the present invention, wherein 1, clear liquid delivery port, and 2, seal cover, 3, connector, 4, sealing ring, 5, filtration core, 6, knockout drum, 7, porous plate, 8A, the first support ring 8B, the second support ring, 9, leakage fluid dram, 10, liquor inlet.
detailed description of the invention:
Embodiment 1:
Structural representation of the present invention is as shown in Figure 1: be made up of knockout drum, seal cover, clear liquid delivery port, sealing ring, filtration core, connector, porous plate, support ring, liquor inlet and leakage fluid dram; Wherein knockout drum top is provided with seal cover, adopts sealing ring to be bolted between knockout drum and seal cover, is provided with clear liquid delivery port in the heart in seal cover; Knockout drum top is cylindric, and bottom is pyramidal structure, and conical lower portion is connected to leakage fluid dram, cylinder and taper junction are provided with liquor inlet, two support rings are housed inside knockout drum, and the second support ring is positioned at above liquor inlet, and the first support ring is positioned at knockout drum top; Second support ring is placed with porous plate, is placed on porous plate bottom filtration core, filtration core top is mounted by means of bolts on the first support ring of knockout drum inside front, and the top delivery port of filtration core is connected with clear liquid delivery port by connector.
Embodiment 2:
As described in Example 1, wherein selected filtration core is triumphant grand purchased from Hangzhou, and filtration core material is polyethylene, and aperture is 0.2 μm, and porous plate is the plastic plate of thickness 5cm, and on porous plate, every square metre distributed 2000 areas is 1cm for the present embodiment apparatus structure
2circular hole.
Titanium white waste acid solution containing powder granule is passed into the liquor inlet of this device, maintenance pressure is 0.3MPa, feed liquid enters knockout drum and forms eddy flow, larger particles more than part grade directly sinks, powder containing fine particle is by porous plate upper reaches, filter further through filtration core and be trapped, the spent acid removing granule foreign collects the waste acid liquor obtaining clarifying from the clear liquid delivery port at top through filtration core, waste acid liquor turbidity after this process is lower than 0.1NTU, and particle removal rate reaches more than 99.5%; Walk the granular powder progressively accumulated under knockout drum discharged by the leakage fluid dram bottom knockout drum and reclaim powder, the powder rate of recovery is higher than 99.5%.
Embodiment 3:
Structure as described in Example 1, difference is that selected filtration core is purchased from film sky, Tianjin, and aperture is 50, and filtration core material is Kynoar, and porous plate is the ceramic wafer of thickness 1cm, and on porous plate, every square metre distributed 30 areas is 200cm
2square hole.
Titanium white waste acid solution containing powder granule is passed into the liquor inlet of this device, keeping sternly is 0.1MPa, feed liquid enters knockout drum and forms eddy flow, larger particles more than part grade directly sinks, powder containing fine particle is by porous plate upper reaches, filter further through filtration core and be trapped, the spent acid removing granule foreign collects the waste acid liquor obtaining clarifying from the clear liquid delivery port at top through filtration core, waste acid liquor turbidity after this process is lower than 0.2NTU, and particle removal rate reaches more than 99%; Walk the granular powder progressively accumulated under knockout drum discharged by the leakage fluid dram bottom knockout drum and reclaim powder, the powder rate of recovery is higher than 99%.
Claims (3)
1. a titanium white waste acid purification and pretreatment device, is made up of knockout drum (6), seal cover (2), clear liquid delivery port (1), sealing ring (4), filtration core (5), connector (3), porous plate (7), support ring (8), leakage fluid dram (9) and liquor inlet (10), wherein knockout drum (6) and seal cover (2) adopt sealing ring to be bolted, it seal cover (2) is clear liquid delivery port (1), knockout drum (6) top is cylindric, bottom is pyramidal structure, conical lower portion is connected to leakage fluid dram (9), support ring (8) is housed below cylinder, support ring (8) is placed with porous plate (7), be placed on porous plate (7) bottom filtration core, filtration core (5) top is arranged on the support ring (8) of knockout drum (6) inside front, the delivery port of filtration core (5) is connected with clear liquid delivery port (1) by connector (3).
2. titanium white waste acid purification and pretreatment device according to claim 1, is characterized in that the aperture of described filtration core is preferably 0.2-50 μm.
3. titanium white waste acid purification and pretreatment device according to claim 1, is characterized in that the preferred plastic plate of described porous plate or ceramic wafer; The preferred 1-5cm of porous plate thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310543535.9A CN104623969A (en) | 2013-11-06 | 2013-11-06 | Titanium dioxide waste acid purification and pretreatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310543535.9A CN104623969A (en) | 2013-11-06 | 2013-11-06 | Titanium dioxide waste acid purification and pretreatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104623969A true CN104623969A (en) | 2015-05-20 |
Family
ID=53203499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310543535.9A Pending CN104623969A (en) | 2013-11-06 | 2013-11-06 | Titanium dioxide waste acid purification and pretreatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104623969A (en) |
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2013
- 2013-11-06 CN CN201310543535.9A patent/CN104623969A/en active Pending
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150520 |