CN202785701U - Reactor for preparing ferric oxide through adopting circulation type precipitation method - Google Patents
Reactor for preparing ferric oxide through adopting circulation type precipitation method Download PDFInfo
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- CN202785701U CN202785701U CN2012204321559U CN201220432155U CN202785701U CN 202785701 U CN202785701 U CN 202785701U CN 2012204321559 U CN2012204321559 U CN 2012204321559U CN 201220432155 U CN201220432155 U CN 201220432155U CN 202785701 U CN202785701 U CN 202785701U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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Abstract
The utility model relates to a reactor for preparing ferric oxide through adopting a circulation type precipitation method. The reactor includes a reaction tank, an inner cylinder, a variable frequency motor, a main shaft, agitator blades, a heating coil, aeration disks, a discharge interface and a thermometer, wherein the inner cylinder is arranged inside the reaction tank; reflowing holes are formed in the lateral surface at the lower part of the inner cylinder; the main shaft is arranged in the center of the reaction tank; the variable frequency motor is mounted at the top of the main shaft; the first agitator blade is mounted in the middle of the main shaft; the second agitator blade is mounted at the lower part of the main shaft; the aeration disks are mounted at the bottom of the reaction tank; the heating coil is mounted above the aeration disks; the second agitator blade is positioned above the heating coil; the first agitator blade is positioned at the middle upper part of the inner cylinder; the discharge interface is mounted at the lower part on the lateral surface of the reaction tank; and the thermometer is mounted at the middle upper part on the outer side of the reaction tank. According to the utility model, the variable frequency motor is controlled through a frequency converter to realize different stirring rates, and the mixing uniformity of liquid inside the reaction tank is controlled; and gas introduced in by the bottom aeration disks rises to drive reaction liquid inside the inner cylinder to rise and spill over the outer side of the inner cylinder, further, the reaction liquid on the outer side of the inner cylinder flows downwards to form a loop.
Description
Technical field
The utility model relates to the reactor of the preparation iron in a kind of mineral dye ferric oxide production system, is specifically related to the reactor that a kind of circulation type precipitator method prepare ferric oxide.
Background technology
Iron oxide pigment is a kind of important inorganic chemistry pigment, is widely used in the fields such as coating, building and traffic.At present, the production method of iron oxide pigment comprises dry method and wet method.Produce large quantity of exhaust gas in the process of dry production ferric oxide, environmental pollution is more serious; Wet method is the at present industrial method that generally adopts, and makes in the production technique of ferric oxide in wet method, generally adopts cylindric retort to react.The reaction raw materials copperas solution adds in the retort, adds sodium hydroxide solution and regulates the pH value, at a certain temperature, pass into air from the retort bottom, and constantly stirring makes it reaction, progressively adds iron filings and participates in reaction, until mill base reaches needed state in the retort.At this moment, stopped reaction is delivered to filtering unit with the reaction material liquid pump, after through washing, dry and packing, be finished product.
In the process of Wet Method Reaction production iron oxides mineral dye, the degree of mixing of reaction raw materials has material impact to reaction efficiency and quality product.Only have gas-liquid-solid fully to contact, just can reach the consumption that economizes in raw materials, raise the efficiency the purpose with quality product.In order to reach the purpose that stirs, retort is equipped with the very large electric motor driving stirring rake of power usually, and operation energy consumption is higher.Along with the demand of ferric oxide constantly increases, the volume of the retort of newly-built employing also increases gradually.In the case, require on the one hand in the reactor gas-liquid-solid Flow Field Distribution very even, require on the other hand reaction hybrid technology and the device of design novel energy-conserving.And rarely have the reactor design for preparing ferric oxide in the present disclosed report, for example patent of invention " wet method is made the Processes and apparatus of red iron oxide " (CN1143049A) discloses a kind of production technique of red iron oxide, but requires simpler to conversion unit.Along with the increase of retort, the stirring rake shaft power that device adopts significantly promotes, and the device operation energy consumption strengthens gradually, need to carry out appropriate design to the reactor of preparation ferric oxide.
Summary of the invention
The purpose of this utility model is to provide a kind of circulation type precipitator method to prepare the reactor of ferric oxide, to substitute traditional high-power stirring reaction bucket, significantly reduces mixing speed, realizes reducing the effect of production energy consumption.
The technical solution of the utility model: a kind of circulation type precipitator method prepare the reactor of ferric oxide, are comprised of retort, inner core, variable-frequency motor, main shaft, stirring rake, heating coil, aeration plate, blowdown interface and thermometer; Wherein, be provided with inner core in the retort, the inner core lower side has return port, the retort center is provided with main shaft, spindle top is installed variable-frequency motor, and the first stirring rake is installed at the main shaft middle part, and the second stirring rake is installed in the main shaft bottom, aeration plate is equipped with in the retort bottom, the aeration plate top is equipped with heating coil, and the second stirring rake is positioned at the heating coil top, and the first stirring rake is positioned at the middle and upper part of inner core, below, retort side is equipped with the blowdown interface, and thermometer is installed in middle and upper part, the retort outside.Utilize the Frequency Converter Control variable-frequency motor to realize different stir speed (S.S.)s, liquid mixing uniformity coefficient in the control retort; The bottom aeration plate passes into the reaction required air, and air rises and drives the rising of inner barrel reaction solution and overflow to the inner core outside, and inner core outside reaction solution flows downward and forms the loop.
Preferred described retort height is 2 ~ 10m, and the retort aspect ratio is 1 ~ 3:1.Preferred inner barrel virtual height is than the low 10 ~ 50cm of retort.The preferred reaction tank is 1.2 ~ 2:1 with the ratio of inner diameter of steel flue.
Described inner core (4) lower side evenly has return port (7) around 10 ~ 100cm place at the bottom of apart from tank, and the area of each return port is 25 ~ 1000cm
2The number of return port is 10 ~ 200; The hole can be other shapes such as circular hole or square hole.
The material of described retort is the acid-alkali-corrosive-resisting materials such as carbon steel, stainless steel or titanium material of inside lining anti-corrosive brick; The inner core material is the acid-alkali-corrosive-resisting materials such as stainless steel or titanium material.
Utilize above-mentioned reactor to prepare the technique of ferric oxide, its concrete steps are as follows: the reaction raw materials copperas solution is added in the retort from the retort top, adding simultaneously sodium hydroxide solution adjusting pH value is 8 ~ 10, heating coil passes into steam heating to 75 ~ 90 ℃, from the aeration plate of retort bottom, pass into air, tolerance is 10 ~ 10000L/min, start variable-frequency motor and drive the stirring rake Stirring, mixing speed is 5 ~ 200 to turn/min, the air driven reaction solution that enters from retort bottom aeration plate upwards flows into retort inner core top, after be spilled over to that the space flows downward between retort and inner core, through inner core bottom perforate and enter the inner core inside bottom and form circulation, so that retort internal reaction material fully mixes, after reaction for some time, until mill base when reaching needed state in the retort, stopped reaction.
Beneficial effect:
(1) the built-in inner barrel of retort forms the double-cylinder type reactor, when the inner core aeration, can produce the circulation loop that the inner core liquid level rises, outer annular space liquid descends, this motion takes full advantage of the energy consumption of aeration, formed abundant mixing, reduce rotating speed and the energy consumption of stirring rake, played significantly energy-saving effect.
(2) the reaction mass residence time lengthens in the outer ring reaction solution, is conducive to the growth control of ferric oxide particles, can better control the particle diameter uniformity coefficient of product.
(3) adopt computational fluid dynamics method appropriate design inside reactor structure, obtain uniform flow field, gas-liquid-solid disperses to contact, level of response homogeneous everywhere in the reactor.
Description of drawings
Fig. 1 is that the utility model is used for the structural representation that the precipitator method prepare the circulating reactor of ferric oxide, wherein 1, variable-frequency motor, 2, main shaft, 3, retort, 4, inner core, 5A, the first stirring rake, 5B, the second stirring rake, 6, heating coil, 7, return port, 8, aeration plate, 9, the blowdown interface, 10, thermometer.
Embodiment
Embodiment 1:
The structural representation of the utility model reactor is as shown in Figure 1: a kind of circulation type precipitator method prepare the reactor of ferric oxide, are comprised of retort, inner core, variable-frequency motor, main shaft, stirring rake, heating coil, aeration plate, blowdown interface and thermometer; Wherein, be provided with inner core in the retort, the inner core lower side has return port, the retort center is provided with main shaft, spindle top is installed variable-frequency motor, and the first stirring rake is installed at the main shaft middle part, and the second stirring rake is installed in the main shaft bottom, aeration plate is equipped with in the retort bottom, the aeration plate top is equipped with heating coil, and the second stirring rake is positioned at the heating coil top, and the first stirring rake is positioned at the middle and upper part of inner core, below, retort side is equipped with the blowdown interface, and thermometer is installed in middle and upper part, the retort outside.
Wherein the retort height is 2m, and the retort aspect ratio is 1; The inner barrel virtual height is than the low 10cm of retort urceolus; Evenly to have area be 25cm to bottom, inner core side at the 10cm place at the bottom of apart from tank
2Circular hole, hole count is 200; The retort urceolus is 2 with the ratio of inner diameter of steel flue; The retort material is the carbon steel of inside lining anti-corrosive brick, and the inner core material is the 316L stainless steel.
The reaction raw materials copperas solution is added in the retort (liquid level to inner core pushes up), adding sodium hydroxide solution adjusting pH value is 8, heating coil passes into steam heating to 75 ℃, from the aeration plate of retort bottom, pass into air, tolerance is 10L/min, start variable-frequency motor and drive the stirring rake Stirring, mixing speed is 5 to turn/min, the air driven reaction solution that enters from retort bottom aeration plate upwards flows into retort inner core top, after be spilled over to that the space flows downward between retort and inner core, through inner core bottom perforate and enter the inner core inside bottom and form circulation, so that retort internal reaction material fully mixes, behind the reaction 1.5h, when mill base reaches among the GB/T 1863-2008 corresponding standard in the retort, stopped reaction is compared with traditional reactor, and the reaction times shortens 1.5h.
Embodiment 2:
The structure of present embodiment reactor is with embodiment 1, and wherein the retort height is 10m, and the retort aspect ratio is 3; The inner barrel virtual height is than the low 50cm of retort urceolus; Evenly to have area be 1000cm to bottom, inner core side at the 100cm place at the bottom of apart from tank
2Square hole, hole count is 10; The retort urceolus is 1.2 with the ratio of inner diameter of steel flue; The retort material is the 316L stainless steel, and the inner core material is the titanium material.
The reaction raw materials copperas solution is added in the retort (liquid level to inner core pushes up), adding sodium hydroxide solution adjusting pH value is 10, heating coil passes into steam heating to 90 ℃, from the aeration plate of retort bottom, pass into air, tolerance is 10000L/min, start variable-frequency motor and drive the stirring rake Stirring, mixing speed is 200 to turn/min, the air driven reaction solution that enters from retort bottom aeration plate upwards flows into retort inner core top, after be spilled over to that the space flows downward between retort and inner core, through inner core bottom perforate and enter the inner core inside bottom and form circulation, so that retort internal reaction material fully mixes, behind the reaction 2.5h, when mill base reaches among the GB/T 1863-2008 corresponding standard in the retort, stopped reaction is compared with traditional reactor, and the reaction times shortens 2h.
Embodiment 3:
The structure of present embodiment reactor is with embodiment 1, and wherein the retort height is 5m, and the retort aspect ratio is 2; The inner barrel virtual height is than the low 30cm of retort urceolus; Evenly to have area be 250cm to bottom, inner core side at the 50cm place at the bottom of apart from tank
2Circular hole, hole count is 100; Described retort urceolus is 1.6 with the ratio of inner diameter of steel flue; The retort material is the titanium material, and the inner core material is the titanium material.
The reaction raw materials copperas solution is added in the retort (liquid level to inner core pushes up), adding sodium hydroxide solution adjusting pH value is 9, heating coil passes into steam heating to 80 ℃, from the aeration plate of retort bottom, pass into air, tolerance is 4000L/min, start variable-frequency motor and drive the stirring rake Stirring, mixing speed is 90 to turn/min, the air driven reaction solution that enters from retort bottom aeration plate upwards flows into retort inner core top, after be spilled over to that the space flows downward between retort and inner core, through inner core bottom perforate and enter the inner core inside bottom and form circulation, so that retort internal reaction material fully mixes, behind the reaction 2.3h, when mill base reaches among the GB/T 1863-2008 corresponding standard in the retort, stopped reaction is compared with traditional reactor, and the reaction times shortens 2h.
Claims (5)
1. the circulation type precipitator method prepare the reactor of ferric oxide, are comprised of retort (3), inner core (4), variable-frequency motor (1), main shaft (2), stirring rake, heating coil (6), aeration plate (8), blowdown interface (9) and thermometer (10); Wherein, be provided with inner core (4) in the retort (3), inner core (4) lower side has return port (7), retort (3) center is provided with main shaft (2), variable-frequency motor (1) is installed at main shaft (2) top, the first stirring rake (5A) is installed at main shaft (2) middle part, the second stirring rake (5B) is installed in main shaft (2) bottom, aeration plate (8) is equipped with in retort (3) bottom, aeration plate (8) top is equipped with heating coil (6), the second stirring rake (5B) is positioned at heating coil (6) top, the first stirring rake (5A) is positioned at the middle and upper part of inner core (4), below, retort (3) side is equipped with blowdown interface (9), and thermometer (10) is installed in middle and upper part, retort (3) outside.
2. reactor according to claim 1 is characterized in that described retort (3) highly is 2 ~ 10m; Retort (3) aspect ratio is 1 ~ 3:1.
3. reactor according to claim 1 is characterized in that described inner core (4) aspect ratio retort (3) hangs down 10 ~ 50cm.
4. reactor according to claim 1 is characterized in that 10 ~ 100cm place evenly has return port (7) at the bottom of described inner core (4) lower side is apart from tank, and the area of each return port is 25 ~ 1000cm
2The number of return port is 10 ~ 200.
5. reactor according to claim 1 is characterized in that described retort and inner diameter of steel flue ratio are 1.2 ~ 2:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204321559U CN202785701U (en) | 2012-08-28 | 2012-08-28 | Reactor for preparing ferric oxide through adopting circulation type precipitation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204321559U CN202785701U (en) | 2012-08-28 | 2012-08-28 | Reactor for preparing ferric oxide through adopting circulation type precipitation method |
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| CN202785701U true CN202785701U (en) | 2013-03-13 |
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| CN2012204321559U Expired - Fee Related CN202785701U (en) | 2012-08-28 | 2012-08-28 | Reactor for preparing ferric oxide through adopting circulation type precipitation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102838171A (en) * | 2012-08-28 | 2012-12-26 | 江苏江盛南节能科技有限公司 | Reactor and process for preparing iron oxide by utilizing circulation type precipitation method |
| CN104828873A (en) * | 2015-04-07 | 2015-08-12 | 江苏宇星工贸有限公司 | Oxidation reaction device for preparing iron oxide red |
-
2012
- 2012-08-28 CN CN2012204321559U patent/CN202785701U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102838171A (en) * | 2012-08-28 | 2012-12-26 | 江苏江盛南节能科技有限公司 | Reactor and process for preparing iron oxide by utilizing circulation type precipitation method |
| CN102838171B (en) * | 2012-08-28 | 2014-10-22 | 江苏江盛南节能科技有限公司 | Reactor and process for preparing iron oxide by utilizing circulation type precipitation method |
| CN104828873A (en) * | 2015-04-07 | 2015-08-12 | 江苏宇星工贸有限公司 | Oxidation reaction device for preparing iron oxide red |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20140828 |
|
| EXPY | Termination of patent right or utility model |