CN207085390U - A kind of titanium dioxide vacuum crystallization device - Google Patents
A kind of titanium dioxide vacuum crystallization device Download PDFInfo
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- CN207085390U CN207085390U CN201720935930.5U CN201720935930U CN207085390U CN 207085390 U CN207085390 U CN 207085390U CN 201720935930 U CN201720935930 U CN 201720935930U CN 207085390 U CN207085390 U CN 207085390U
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Abstract
The utility model discloses a kind of titanium dioxide vacuum crystallization device, crystallizing tank includes guide shell, baffle plate, propeller, elutriating pipe, circulation pipe, guide shell includes upper cylindrical shape guide shell, lower conical guide shell, agitating paddle is provided with lower conical guide shell, agitating paddle includes main oar, metaplasm, metaplasm is arranged on the downside of main oar, elutriation bottom of the tube is provided with mother liquor outlet, crystal exports, circulation pipe top connection circulation fluid outlet bottom connection crystal solution inlet pipe, circulation pipe is provided with material inlet, and crystal solution inlet pipe is helical swirl pipe.The beneficial effects of the utility model：Easy to use, simple to operate, crystallization effect is good, and crystal size is uniform, stirs no dead angle, and grain size number is in the same size, and crystallization effect is good.
Description
Technical field
The present invention relates to a kind of chemical crystallization equipment technical field, specially a kind of titanium dioxide vacuum crystallization device.
Background technology
Titanium dioxide scientific name is titanium dioxide（ Titanium Dioxide）, it is a kind of dyestuff and pigment, and its molecular formula is
TiO2, molecular weight 79.8658.Titanium dioxide is very important raw material in industrial production, is widely used in coating, plastics, makes
The industry such as paper, printing-ink, chemical fibre, rubber, cosmetics, ceramics, enamel, electronics, food and medicine.And disappear in coating products
Consume titanium dioxide it is most be building coating, account for weight of coated paint 60%.Because real estate is larger to the demand of Coating Market, because
The burning hot demand for causing titanium dioxide of real-estate market increases.
The preparation method of titanium dioxide mainly has chloridising and sulfuric acid process, at present Dupont, Mei Lilian and Ke Meiji tri-
Company knows advanced titanium dioxide chloridising production technology, and sulfuric acid process is the main method that China produces titanium dioxide.Nothing
By using the crystallization of chloridising or sulfate process titanium dioxide as final steps.Vacuum crystallization is compared with common freezing and crystallizing
It is current with reducing cost of investment, increase disposal ability, reducing beneficial effect, the vacuum crystallizations such as operating cost, energy-conserving and environment-protective
The most frequently used crystallization mode.
The crystallization apparatus of titanium dioxide mainly uses DTB type crystallizers in the prior art, mainly including crystallizing tank, Inner guide
Cylinder, cylindrical baffle, elutriating cylinder（Eluriate leg）, steam generator, cooling water generator etc., operation principle is：Crystallizer bottom connects
There is an elutriating cylinder, be provided with guide shell and cylindrical baffle in crystallizer, hot saturation feed liquid is continuously fed into circulation pipe bottom during operation, with following
Cooler is pumped to after the mother liquor mixing of small crystals is entrained with endless tube, the solution after cooling flows into knot near guide shell bottom
Brilliant device, and the propeller by slowly rotating delivers to liquid level along guide shell, solution cools down in liquid surface evaporation, reaches hypersaturated state,
Which part solute deposits in the particle surface of suspension, crystal is grown up, a decanting zone is additionally provided with ring baffle periphery,
Bulky grain settles in decanting zone, and little particle then enters circulation pipe with mother liquor and sunk to by heat of solution, crystal in crystalliser feet
Elutriating cylinder, to make the granularity of crystalline product as far as possible uniform, the partial mother liquid that decanting zone is come is added to elutriation column bottom, utilizes waterpower
The effect of classification, makes little particle flow back to crystallizer with solution, and crystalline product is discharged from elutriation leg bottom.
The deficiencies in the prior art：1st, material inlet sets the unreasonable clarification for causing to be formed between guide shell and cylindrical baffle
The liquid stream helicity of the crystal solution in area is poor, and liquid to be crystallized is easily blocked at material inlet, and thicker knot is formed at material inlet
Crystal layer, cleaning is cumbersome, and cleans extremely inconvenience；2nd, the water conservancy diversion effect of guide shell is poor, influences follow-up crystallization effect；3rd, it is existing
Agitating paddle is propeller, and the stirring of propeller has dead angle, and the edge of guide shell leaves dead angle.
The content of the invention
To solve the above problems, the invention discloses a kind of titanium dioxide vacuum crystallization device.
In order to reach object above, the present invention provides following technical scheme：
A kind of titanium dioxide vacuum crystallization device, including crystallizing tank, the crystallizing tank include guide shell, baffle plate, propeller, wash in a pan
Analysis pipe, circulation pipe, the guide shell are arranged on inside crystallizing tank, and the guide shell includes upper cylindrical shape guide shell, lower cone
Guide shell, the crystallization tank inner side is provided with cylindrical baffle, agitating paddle is provided with the lower conical guide shell, described to stir
Mixing oar includes main oar, metaplasm, and the metaplasm is arranged on the downside of main oar, and the crystallization pot bottom is provided with elutriating pipe, the elutriating pipe
Bottom is provided with mother liquor outlet, crystal exports, and the crystallizing tank bottom side is provided with crystal solution inlet pipe, is provided with the middle part of the crystallizing tank
Circulation fluid exports, and the circulation pipe top connection circulation fluid outlet bottom connection crystal solution inlet pipe, the circulation pipe is provided with thing
Expect import, the crystal solution inlet pipe is helical swirl pipe.
Further, the main oar sets two, and ten metaplasms are set under each main oar.Main oar arranged in a crossed manner two
Root, stirring evenly.
Further, the metaplasm is banding, spiral helicine one of which.
Further, connection cooling water system, cooling water system preferably promote Crystallization at the top of the crystallizing tank.
Further, the circulation pipe connection circulating pump, the circulation pipe are provided with heater.Heating devices heat makes
Obtain the fine crystals in phegma to dissolve to form supersaturation easily, be back in crystallizing tank and recrystallize.
Further, the agitating paddle connection stirring motor.
Further, the crystal outlet connection crystal pump.
The course of work and principle of the present invention：After material to be crystallized enters at material inlet, enter from crystal solution inlet pipe
Crystallizing tank, under the stirring action of agitating paddle, crystallized in the crystal region that crystal solution is formed between guide shell and baffle plate, baffle plate with
Settling section is formed between crystallization tank body, without stirring action in this settling section so that crystal settles from mother liquor and falls into crystallizing tank
Bottom, finally fall into elutriating pipe, mother liquor flows out from the bottom of elutriating pipe, and crystal exports from crystal to flow out.
The invention has the advantages that：
（1）The titanium dioxide vacuum crystallization device of the present invention, crystal solution inlet pipe is helical swirl pipe so that entrance is waited to tie
Brilliant material enters in crystallizing tank in the shape of a spiral, forms spiral liquid flow, is advantageous to the crystal region shape between guide shell and baffle plate
Into spiral circulation, crystallization rate and crystallization effect enhancing, meanwhile, liquid to be crystallized is not easy to form crystallizing layer at inlet, reduces
Clearing times.
（2）The titanium dioxide vacuum crystallization device of the present invention, agitating paddle are arranged to carry the structure of metaplasm under main oar, on the one hand
The stirring without dead angle can be achieved, on the other hand make it that crystal size is in the same size, is not likely to produce a large amount of fine grains.Common crystallization tank is
The mixed effect reached, needs strong agitation, easily produces a large amount of fine grains, and when fine grain is less than 1 μm, fine grain has group
Poly- phenomenon, i.e. Van der Waals power can work, and cause Granularity Distribution wide, and viscosity becomes big, and intergranular wraps up residual after centrifugation
Liquid measure is relative to be increased, and causes product purity low；If stirring intensity not enough can cause mixing effect poor again, it is difficult to it is well mixed, because
Original propeller is modified to the structure that metaplasm is carried under main oar by this, the formed liquid stream whirlpool increase of stirring, is not strengthening
Realize bigger mixing effect in the case of mixing speed, the Lens capsule of formation is uniform, purity is high.
（3）The titanium dioxide vacuum crystallization device of the present invention, it is tubular bottom that original tubular guide shell is arranged into top
For the guide shell of taper, more preferable water conservancy diversion effect is realized.
（4）The present invention is easy to use, and simple to operate, crystallization effect is good, and crystal size is uniform.
Brief description of the drawings
Fig. 1, the embodiment of the present invention 1 structural representation；
Fig. 2, the embodiment of the present invention 1 crystal solution inlet pipe Section A-A schematic diagram；
Fig. 3, the embodiment of the present invention 1 agitating paddle structural representation；
Fig. 4, embodiments of the invention 2 structural representation.
Wherein：Crystallizing tank 100, cooling water system 200, heater 300, guide shell 1, cylindrical shape guide shell 11, lower circle
Conical flow guiding cylinder 12, baffle plate 2, propeller 3, main oar 31, metaplasm 32, stirring motor 33, elutriating pipe 4, mother liquor outlet 41, crystal go out
Mouth 42, circulation pipe 5, material inlet 51, crystal pump 6, crystal solution inlet pipe 7, circulation fluid outlet 8.
Embodiment
With reference to the accompanying drawings and detailed description, the present invention is furture elucidated, it should be understood that following embodiments are only
For illustrating the present invention rather than limitation the scope of the present invention.
Embodiment 1
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of titanium dioxide vacuum crystallization device, including crystallizing tank 100, crystallizing tank include water conservancy diversion
Cylinder 1, baffle plate 2, propeller 3, elutriating pipe 4, circulation pipe 5, guide shell is arranged on inside crystallizing tank, and guide shell is led including upper cylindrical shape
Flow cartridge 11, lower conical guide shell 12, crystallization tank inner side are provided with cylindrical baffle, stirring are provided with lower conical guide shell
Oar, agitating paddle connection stirring motor 33, agitating paddle include main oar 31, metaplasm 32, and metaplasm is arranged on the downside of main oar, crystallizes pot bottom
Provided with elutriating pipe, elutriation bottom of the tube is provided with mother liquor outlet 41, crystal outlet 42, and crystallizing tank bottom side is provided with crystal solution inlet pipe 7,
It is provided with circulation fluid outlet 8 in the middle part of crystallizing tank, circulation pipe top connection circulation fluid outlet bottom connection crystal solution inlet pipe, on circulation pipe
Provided with material inlet 51, crystal solution inlet pipe is helical swirl pipe.
Further, main oar sets two, and ten metaplasms are set under each main oar.Main two arranged in a crossed manner of oar, evenly
Stirring.
Further, metaplasm is banding, spiral helicine one of which.Banding metaplasm is arranged in the present embodiment, at it
Helical form metaplasm or other shapes metaplasm are may be configured as in his embodiment.
Embodiment 2
As shown in figure 4, a kind of titanium dioxide vacuum crystallization device 100, crystallizing tank top connection cooling water system 200, cooling
Water system preferably promotes Crystallization.Circulation pipe connects circulating pump, and circulation pipe is provided with heater 300.Heater adds
Heat causes the fine crystals in phegma to dissolve to form supersaturation easily, is back in crystallizing tank and recrystallizes.And go out in crystal
Mouth connection crystal pump 6.Remaining structure is same as Example 1, will not be described here.
Technological means disclosed in the present invention program is not limited only to the technological means disclosed in above-mentioned embodiment, in addition to
Formed technical scheme is combined by above technical characteristic.It should be pointed out that for those skilled in the art
For, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (7)
- A kind of 1. titanium dioxide vacuum crystallization device, it is characterised in that：Including crystallizing tank, the crystallizing tank include guide shell, baffle plate, Propeller, elutriating pipe, circulation pipe, the guide shell are arranged on inside crystallizing tank, the guide shell include upper cylindrical shape guide shell, Lower conical guide shell, the crystallization tank inner side are provided with cylindrical baffle, stirring are provided with the lower conical guide shell Oar, the agitating paddle include main oar, metaplasm, and the metaplasm is arranged on the downside of main oar, and the crystallization pot bottom is provided with elutriating pipe, institute State elutriation bottom of the tube to export provided with mother liquor outlet, crystal, the crystallizing tank bottom side is provided with crystal solution inlet pipe, the crystallizing tank Middle part exports provided with circulation fluid, the circulation pipe top connection circulation fluid outlet bottom connection crystal solution inlet pipe, the circulation pipe Material inlet is provided with, the crystal solution inlet pipe is helical swirl pipe.
- A kind of 2. titanium dioxide vacuum crystallization device as claimed in claim 1, it is characterised in that：The main oar sets two, institute State ten metaplasms of setting under each main oar.
- A kind of 3. titanium dioxide vacuum crystallization device as claimed in claim 1 or 2, it is characterised in that：The metaplasm is banding, spiral shell Revolve the one of which of shape.
- A kind of 4. titanium dioxide vacuum crystallization device as claimed in claim 1, it is characterised in that：The circulation pipe connection circulation Pump, the circulation pipe are provided with heater.
- A kind of 5. titanium dioxide vacuum crystallization device as claimed in claim 1, it is characterised in that：Connection is cold at the top of the crystallizing tank But water system.
- A kind of 6. titanium dioxide vacuum crystallization device as claimed in claim 1, it is characterised in that：The agitating paddle connection stirring electricity Machine.
- A kind of 7. titanium dioxide vacuum crystallization device as claimed in claim 1, it is characterised in that：The crystal outlet connection crystal Pump.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720935930.5U CN207085390U (en) | 2017-07-31 | 2017-07-31 | A kind of titanium dioxide vacuum crystallization device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720935930.5U CN207085390U (en) | 2017-07-31 | 2017-07-31 | A kind of titanium dioxide vacuum crystallization device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107349618A (en) * | 2017-07-31 | 2017-11-17 | 南京圆点环境清洁技术有限公司 | A kind of titanium dioxide vacuum crystallization device |
| CN110013682A (en) * | 2019-05-05 | 2019-07-16 | 河北工业大学 | A kind of novel nano-titanium dioxide production procedure control device and method |
| CN110229024A (en) * | 2019-05-31 | 2019-09-13 | 中蓝长化工程科技有限公司 | A kind of Potash Industry decomposition and crystallization device |
-
2017
- 2017-07-31 CN CN201720935930.5U patent/CN207085390U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107349618A (en) * | 2017-07-31 | 2017-11-17 | 南京圆点环境清洁技术有限公司 | A kind of titanium dioxide vacuum crystallization device |
| CN110013682A (en) * | 2019-05-05 | 2019-07-16 | 河北工业大学 | A kind of novel nano-titanium dioxide production procedure control device and method |
| CN110013682B (en) * | 2019-05-05 | 2024-01-26 | 河北工业大学 | Novel nano titanium dioxide production flow control device and method |
| CN110229024A (en) * | 2019-05-31 | 2019-09-13 | 中蓝长化工程科技有限公司 | A kind of Potash Industry decomposition and crystallization device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Vacuum crystallization device for titanium dioxide Effective date of registration: 20180712 Granted publication date: 20180313 Pledgee: Bank of Nanjing Limited by Share Ltd. Nanjing branch Pledgor: NANJING CIRCLE DOT ENVIRONMENT CLEANING TECHNOLOGY CO.,LTD. Registration number: 2018320000103 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220826 Granted publication date: 20180313 Pledgee: Bank of Nanjing Limited by Share Ltd. Nanjing branch Pledgor: NANJING CIRCLE DOT ENVIRONMENT CLEANING TECHNOLOGY CO.,LTD. Registration number: 2018320000103 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |