CN114440557A - Energy-saving titanium dioxide flash drying system - Google Patents
Energy-saving titanium dioxide flash drying system Download PDFInfo
- Publication number
- CN114440557A CN114440557A CN202111623925.8A CN202111623925A CN114440557A CN 114440557 A CN114440557 A CN 114440557A CN 202111623925 A CN202111623925 A CN 202111623925A CN 114440557 A CN114440557 A CN 114440557A
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- Prior art keywords
- flash
- air
- tail gas
- titanium dioxide
- bag filter
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 238000001035 drying Methods 0.000 title claims abstract description 43
- 239000004408 titanium dioxide Substances 0.000 title claims abstract description 23
- 239000003034 coal gas Substances 0.000 claims abstract description 11
- 235000010215 titanium dioxide Nutrition 0.000 claims description 23
- 239000007921 spray Substances 0.000 claims description 22
- 238000005406 washing Methods 0.000 claims description 22
- 230000008676 import Effects 0.000 claims description 9
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 8
- 238000011084 recovery Methods 0.000 claims description 8
- 229910052719 titanium Inorganic materials 0.000 claims description 7
- 239000010936 titanium Substances 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 230000001502 supplementing effect Effects 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 55
- 238000001704 evaporation Methods 0.000 abstract description 9
- 230000008020 evaporation Effects 0.000 abstract description 9
- 239000002918 waste heat Substances 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000000047 product Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000002485 combustion reaction Methods 0.000 description 6
- 239000012065 filter cake Substances 0.000 description 6
- 239000000428 dust Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
- F26B3/06—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/001—Handling, e.g. loading or unloading arrangements
- F26B25/002—Handling, e.g. loading or unloading arrangements for bulk goods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/005—Treatment of dryer exhaust gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
- F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses an energy-saving titanium dioxide flash evaporation drying system, and belongs to the technical field of titanium dioxide production. The flash drying device comprises a flash drying machine, a hot blast stove, a flash bag filter and an air preheater, wherein a tail gas inlet, a tail gas outlet, a fresh air inlet and a fresh air outlet are formed in the air preheater, the tail gas inlet is communicated with an air outlet of the flash bag filter, the tail gas outlet is connected with a flash tail gas fan, the fresh air inlet is connected with a blower, the fresh air outlet is connected with a combustion-supporting air system, the combustion-supporting air system is connected with the hot blast stove, the hot blast stove is connected with an air source, an air outlet of the hot blast stove is communicated with an air inlet of the flash drying machine, a discharge port of the flash drying machine is connected with a feed inlet of the flash bag filter, and a discharge port of the flash bag filter is connected with a flash storage tank. The invention recovers the waste heat in the tail gas of the flash drying bag filter, improves the temperature of combustion-supporting air, greatly reduces the cost of flash drying coal gas and does not influence the product quality.
Description
Technical Field
The invention belongs to the technical field of titanium dioxide production, and particularly relates to an energy-saving titanium dioxide flash evaporation drying system.
Background
The flash evaporation drying production of the titanium dioxide is that hot air enters the bottom of a dryer and forms a powerful rotary wind field under the drive of a stirrer. The wet titanium dioxide (three-washing filter cake) is put on a belt conveyer from a storage bin and then is sent into a dryer from a spiral feeder, and under the action of a stirrer, the wet titanium dioxide is dispersed and crushed, and is fully contacted with hot air, heated and dried. And under the action of a draught fan, the dried titanium dioxide is brought to a flash evaporation bag for dust collection treatment.
In the current titanium dioxide industry, the water content of the three-washing filter cake is about 35%, the three-washing filter cake is dried and crushed by using heat generated by mixed combustion of primary combustion-supporting air, secondary combustion-supporting air and coal gas in flash drying, and then the three-washing filter cake enters a flash drying bag filter for dust collection treatment. The inlet temperature of the flash-dry bag filter is about 130 ℃, the outlet temperature of the flash-dry bag filter is about 100 ℃, and the working condition air quantity is 50000m3H is used as the reference value. In the prior art, the flash-dried tail gas discharged by the flash-dried bag filter is directly discharged into the atmosphere without any waste heat recovery, so that energy is seriously wasted, and a large amount of heat sources are wasted. On the other hand, in the prior art, because normal-temperature air is used as the flash-dry combustion-supporting air, the temperature of the mixed fresh air of the gas hot blast stove is very low (namely, the normal temperature is about 16.3 ℃), the gas consumption is large, and the cost is high.
But because the oxygen content is less than the air in the flash dry tail gas, water vapor content is higher, if the flash dry tail gas directly uses as combustion-supporting wind, can influence flash dry coal gas combustion efficiency, when the damage appears in flash dry bag filter bag in addition, the dust can get into the tail gas, directly uses the tail gas as combustion-supporting wind can influence product quality.
Disclosure of Invention
Aiming at the problems that in the prior art, the flash evaporation drying tail gas is directly discharged into the atmosphere and the energy is seriously wasted, the invention provides an energy-saving titanium dioxide flash evaporation drying system, which aims to: the waste heat of the flash drying tail gas is recycled, so that the consumption of flash drying gas is reduced, energy is saved, and the product quality is improved.
The technical scheme adopted by the invention is as follows:
the utility model provides an energy-saving titanium white powder flash drying system, includes flash dryer, hot-blast furnace and flash bag filter, still includes air heater, last tail gas import, the tail gas export of being provided with of air heater, fresh air import and the fresh air export, the tail gas import communicates with the air outlet of flash bag filter, the tail gas export is connected with flash tail gas fan, the fresh air access connection has the air-blower, the fresh air exit linkage has combustion-supporting air system, combustion-supporting air system is connected with the hot-blast furnace, the hot-blast furnace is connected with the air supply, the air outlet of hot-blast furnace and flash dryer's air intake intercommunication, flash dryer's discharge gate and flash bag filter's feed inlet are connected, and flash bag filter's discharge gate is connected with the flash storage tank.
After the technical scheme is adopted, the waste heat in the tail gas of the flash drying bag filter can be recovered through the air preheater, the heat in the tail gas is used for heating the fresh air, the fresh air with the temperature of about 17 ℃ is subjected to heat exchange to about 70 ℃, and then the heat is used as the combustion-supporting air of the gas hot blast stove, so that the temperature of the combustion-supporting air is increased, and the cost of flash drying gas is greatly reduced. Reduce gas consumption by 41.3m3And/t, the cost is reduced by 14.05 yuan/t, and the annual benefit of a single set of system is 50.58 ten thousand yuan. And the heat exchanger is used for exchanging heat and recovering the waste heat of the tail gas to replace the direct recovery of the tail gas, so that the influence on the product quality can be avoided.
Preferably, the combustion-supporting air system comprises a combustion-supporting fan and a first air filter, the combustion-supporting fan and the hot blast stove are sequentially communicated through a pipeline, and a pipeline between the air filter and the combustion-supporting fan is communicated with a fresh air outlet of the air preheater.
After the optimized scheme is adopted, the preheated fresh air is drained by the combustion fan and then is fully mixed and combusted with the coal gas in the hot blast stove, so that the temperature of the combustion air is increased, and the coal gas consumption of the hot blast stove during combustion is reduced.
Preferably, the hot blast stove is connected with a second air filter.
After the preferred scheme is adopted, impurities in the air can be prevented from entering the system.
Preferably, an air supplementing valve is arranged on a pipeline between the flash dryer and the flash bag filter.
After the preferred scheme is adopted, the air inlet amount can be adjusted through the air supplementing valve, so that the temperature in the flash drying bag filter can be adjusted.
Preferably, the flash-dry tail gas fan is connected with a spray tower, a spray device is arranged in the spray tower, the spray tower is connected with a washing circulation tank, a discharge port of the washing circulation tank is connected with a titanium recovery device, and an overflow port of the washing circulation tank is connected with the spray device.
After the preferred scheme is adopted, the flash-dried tail gas is treated by the spray tower and the washing circulation tank, and then enters the titanium recovery device to recover titanium in the tail gas, so that the resource is recycled, the spray water can be recycled, and the waste of water resources is reduced.
Preferably, the air inlet of the flash dry bag filter is connected with an air storage tank, and the air storage tank is connected with an air compression station.
After the optimal selection scheme is adopted, the flash dry bag filter can be subjected to back blowing through compressed air, materials attached to the surface of the filter bag are blown down, and the influence on the normal operation of the system due to the fact that the air permeability of the filter bag is reduced due to the attachment of the materials is avoided.
Preferably, an air chute or a screw conveyor is arranged between the discharge port of the flash drying bag filter and the flash drying storage tank.
After the preferred scheme is adopted, products of different models can be conveyed to different flash drying storage tanks through an air chute or a screw conveyor so as to adapt to the different flowability differences of the products of different models.
Preferably, the feed inlet of the flash dryer is connected with a flash feeding screw, the flash feeding screw is connected with a feeding chute, and the feed inlet of the feeding chute is connected with a discharge port of the three-washing filter press.
After the preferred scheme is adopted, the three-washing filter cake discharged by the three-washing filter press can be conveyed to the flash evaporation dryer through the feeding chute and the flash drying feeding screw.
Further preferably, the air preheater is a phase change heat exchanger, so that the heat exchange efficiency is higher.
Further preferably, the gas source is coal gas and/or liquefied gas.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the waste heat in the tail gas of the flash drying bag filter can be recovered through the air preheater, the heat in the tail gas is used for heating the fresh air, the fresh air at the temperature of about 17 ℃ is subjected to heat exchange to about 70 ℃, and then the fresh air is used as the combustion-supporting air of the gas hot blast stove, so that the temperature of the combustion-supporting air is increased, and the cost of flash drying gas is greatly reduced. Reduce gas consumption by 41.3m3And/t, the cost is reduced by 14.05 yuan/t, and the annual benefit of a single set of system is 50.58 ten thousand yuan.
2. The invention uses the heat exchanger to exchange heat and recover the waste heat of the tail gas, replaces the direct recovery of the tail gas, and can avoid influencing the product quality.
3. After the flash-dried tail gas is treated by the spray tower and the washing circulation tank, the flash-dried tail gas enters the titanium recovery device to recover titanium in the tail gas, so that the resource is recycled, the spray water can be recycled, and the waste of water resources is reduced.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a flow chart of the process of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are usually placed in when used, and are only used for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements that are referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
The present invention is described in detail below with reference to fig. 1.
The utility model provides an energy-saving titanium white powder flash drying system, as shown in figure 1, includes flash dryer, hot-blast furnace and flash bag filter, still includes air heater, last tail gas import, tail gas export, fresh air import and the fresh air export of being provided with of air heater, the tail gas import communicates with the air outlet of flash bag filter, the tail gas exit linkage has flash dry tail gas fan, the fresh air access connection has the air-blower, the fresh air exit linkage has combustion-supporting air system, combustion-supporting air system is connected with the hot-blast furnace, the hot-blast furnace is connected with the air supply, the air outlet of hot-blast furnace communicates with flash dryer's air intake, and flash dryer's discharge gate and flash bag filter's feed inlet are connected, and flash dryer's discharge gate is connected with the flash storage tank.
In this embodiment, the combustion-supporting air system includes a combustion-supporting fan and a first air filter, the combustion-supporting fan and the hot blast stove are sequentially communicated through a pipeline, and a pipeline between the air filter and the combustion-supporting fan is communicated with a fresh air outlet of the air preheater.
The hot blast stove is connected with a second air filter to prevent impurities in the air from entering the system
And an air supplementing valve is arranged on a pipeline between the flash dryer and the flash bag filter and used for adjusting the temperature in the flash bag filter.
The flash-dry tail gas fan is connected with a spray tower, a spray device is arranged in the spray tower, the spray tower is connected with a washing circulation tank, a discharge port of the washing circulation tank is connected with a titanium recovery device, and an overflow port of the washing circulation tank is connected with the spray device.
The air inlet of the flash bag filter is connected with an air storage tank, the air storage tank is connected with an air compression station, compressed air is provided through the air compression station to blow back the flash bag filter, materials attached to the surface of the flash bag filter are blown down, and the problem that the air permeability of the filter bag is reduced due to the attachment of the materials, so that the normal operation of the system is affected is avoided.
And a discharge port of the flash bag filter is connected with a 996 flash storage tank or a 952 flash storage tank, if the flash storage tank is 996 flash storage tank, the product is conveyed through an air chute, and if the flash storage tank is 952 flash storage tank, the product is conveyed through a screw conveyor.
The feed inlet of flash dryer is connected with flash feed spiral, flash feed spiral is connected with the feeding chute, the feed inlet and the bin outlet of three washing pressure filters of feeding chute are connected.
In this embodiment, the air preheater is a phase change heat exchanger.
In this embodiment, the gas source is coal gas or liquefied gas.
The working principle of the invention is as follows:
and the three-washing filter cakes generated by the three-washing filter press enter the flash evaporation drying agent to be crushed and dried through the feeding chute and the flash evaporation feeding screw in sequence. And sending the dried titanium dioxide into a flash-dry belt filter for dust collection treatment. And the titanium dioxide after dust collection enters an air chute or a spiral conveyer through a discharge hole of the flash drying belt filter and is conveyed to a flash drying storage tank for storage. Tail gas of the flash drying belt filter enters an air preheater to preheat fresh air fed by a blower separately, the temperature of the fresh air is preheated to about 70 ℃ from normal temperature, the preheated fresh air is taken as a combustion-supporting seal and enters a hot air furnace through a combustion-supporting fan to be mixed with coal gas, the temperature of the coal gas is increased, and therefore the coal gas consumption during combustion of the hot air furnace is reduced. And a tail gas outlet of the air preheater is drained by a flash-dry tail gas fan and then enters a spray tower for treatment, the treated clean gas is discharged into the air, and meanwhile, the titanium element in the spray water is recovered, and the spray water can be recycled.
The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.
Claims (10)
1. The utility model provides an energy-saving titanium white powder flash drying system, includes flash dryer, hot-blast furnace and flash dry bag filter, its characterized in that still includes air heater, last tail gas import, the export of tail gas, fresh air import and the fresh air export of being provided with of air heater, the air outlet intercommunication of tail gas import and flash dry bag filter, the tail gas exit linkage has flash dry tail gas fan, the fresh air access connection has the air-blower, the fresh air exit linkage has combustion-supporting air system, combustion-supporting air system is connected with the hot-blast furnace, the hot-blast furnace air supply is connected with, the air outlet of hot-blast furnace and flash dryer's air intake intercommunication, flash dryer's discharge gate and flash dry bag filter's feed inlet are connected, and flash dry bag filter's discharge gate is connected with the flash dry storage tank.
2. The energy-saving titanium dioxide flash drying system according to claim 1, characterized in that: the combustion-supporting air system comprises a combustion-supporting fan and a first air filter, the combustion-supporting fan and the hot blast stove are sequentially communicated through a pipeline, and the pipeline between the air filter and the combustion-supporting fan is communicated with a fresh air outlet of the air preheater.
3. The energy-saving titanium dioxide flash drying system according to claim 1, characterized in that: the hot blast stove is connected with a second air filter.
4. The energy-saving titanium dioxide flash drying system according to claim 1, characterized in that: and an air supplementing valve is arranged on a pipeline between the flash dryer and the flash bag filter.
5. The energy-saving titanium dioxide flash drying system according to claim 1, characterized in that: the flash-dry tail gas fan is connected with a spray tower, a spray device is arranged in the spray tower, the spray tower is connected with a washing circulation tank, a discharge port of the washing circulation tank is connected with a titanium recovery device, and an overflow port of the washing circulation tank is connected with the spray device.
6. The energy-saving titanium dioxide flash drying system according to claim 1, characterized in that: and an air inlet of the flash dry bag filter is connected with an air storage tank, and the air storage tank is connected with an air compression station.
7. The energy-saving titanium dioxide flash drying system according to claim 1, characterized in that: an air chute or a screw conveyor is arranged between the discharge port of the flash drying bag filter and the flash drying storage tank.
8. The energy-saving titanium dioxide flash drying system according to claim 1, characterized in that: the feed inlet of flash dryer is connected with flash feed spiral, flash feed spiral is connected with the feeding chute, the feed inlet and the bin outlet of three washing pressure filters of feeding chute are connected.
9. The energy-saving titanium dioxide flash drying system according to claim 1, characterized in that: the air preheater is a phase change heat exchanger.
10. The energy-saving titanium dioxide flash drying system according to claim 1, characterized in that: the gas source is coal gas and/or liquefied gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111623925.8A CN114440557A (en) | 2021-12-28 | 2021-12-28 | Energy-saving titanium dioxide flash drying system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111623925.8A CN114440557A (en) | 2021-12-28 | 2021-12-28 | Energy-saving titanium dioxide flash drying system |
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| CN114440557A true CN114440557A (en) | 2022-05-06 |
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| CN202111623925.8A Pending CN114440557A (en) | 2021-12-28 | 2021-12-28 | Energy-saving titanium dioxide flash drying system |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6397490B1 (en) * | 1999-07-29 | 2002-06-04 | Hosokawa Micron Corporation | Flash drying apparatus |
| CN102183134A (en) * | 2011-03-08 | 2011-09-14 | 常州先锋干燥设备有限公司 | Rotary flash drying system |
| CN202853264U (en) * | 2012-10-13 | 2013-04-03 | 云南新立有色金属有限公司 | Ferrotitanium concentrate drying system device |
| CN205079587U (en) * | 2015-09-11 | 2016-03-09 | 刘峄 | Dry tail gas of titanium white powder utilizes device |
| CN206056225U (en) * | 2016-08-31 | 2017-03-29 | 华北制药集团爱诺有限公司 | A kind of flash dryer circulation of tail gas application system |
| JP2017203557A (en) * | 2016-05-09 | 2017-11-16 | 太平洋セメント株式会社 | Flash dryer |
| CN109028929A (en) * | 2018-06-29 | 2018-12-18 | 攀钢集团研究院有限公司 | Expansion drying afterheat recycling system in titanium white production |
| CN208382818U (en) * | 2018-06-11 | 2019-01-15 | 山东鲁北企业集团总公司 | A kind of production battery-level lithium carbonate grinding device |
-
2021
- 2021-12-28 CN CN202111623925.8A patent/CN114440557A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6397490B1 (en) * | 1999-07-29 | 2002-06-04 | Hosokawa Micron Corporation | Flash drying apparatus |
| CN102183134A (en) * | 2011-03-08 | 2011-09-14 | 常州先锋干燥设备有限公司 | Rotary flash drying system |
| CN202853264U (en) * | 2012-10-13 | 2013-04-03 | 云南新立有色金属有限公司 | Ferrotitanium concentrate drying system device |
| CN205079587U (en) * | 2015-09-11 | 2016-03-09 | 刘峄 | Dry tail gas of titanium white powder utilizes device |
| JP2017203557A (en) * | 2016-05-09 | 2017-11-16 | 太平洋セメント株式会社 | Flash dryer |
| CN206056225U (en) * | 2016-08-31 | 2017-03-29 | 华北制药集团爱诺有限公司 | A kind of flash dryer circulation of tail gas application system |
| CN208382818U (en) * | 2018-06-11 | 2019-01-15 | 山东鲁北企业集团总公司 | A kind of production battery-level lithium carbonate grinding device |
| CN109028929A (en) * | 2018-06-29 | 2018-12-18 | 攀钢集团研究院有限公司 | Expansion drying afterheat recycling system in titanium white production |
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Application publication date: 20220506 |