CN209481198U - A kind of calciner plant producing rutile type titanium white - Google Patents
A kind of calciner plant producing rutile type titanium white Download PDFInfo
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- CN209481198U CN209481198U CN201920043045.5U CN201920043045U CN209481198U CN 209481198 U CN209481198 U CN 209481198U CN 201920043045 U CN201920043045 U CN 201920043045U CN 209481198 U CN209481198 U CN 209481198U
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Abstract
The utility model discloses a kind of calciner plants for producing rutile type titanium white, including kiln hood, kiln tail and cylinder, the inner barrel is hollow, and kiln hood lid is provided at the kiln hood, kiln tail case is provided at the kiln tail, the kiln hood lid and kiln tail case are sealingly mounted at cylinder both ends；The kiln hood, which covers, is provided with burner and discharge port, is provided with feeding port and exhanst gas outlet on the kiln tail case；It is fixedly installed with cutting plate on cylinder inboard wall at the feeding port, burning is provided on the cylinder inboard wall between the cutting plate and burner.The calciner plant of the utility model, reduces thickness of feed layer, improves the delivery rate of temperature, and rutile-type crystal form is made to obtain abundant rapid conversion, and obtained titanium dioxide primary product has good reducing power, hardness and color.
Description
Technical field
The utility model relates to field of titanium dioxide production, especially a kind of calciner plant for producing rutile type titanium white.
Background technique
In production process of titanium pigment, rotary kiln is common calciner plant.During Titanium White Production By Sulfuric Acid Process, lead to
It is often to mix ilmenite concentrate and titanium slag to be crushed, generates metatitanic acid using processes such as acidolysis, hydrolysis, salt treatment, then exist
High-temperature calcination is carried out in rotary kiln, so that metatitanic acid is converted into titanium dioxide, is obtained titanium dioxide primary product, most obtain afterwards through crushing packing
Titanium dioxide finished product.When metatitanic acid is burnt in rotary kiln, in addition to being dehydrated desulfurization, most importantly carry out conversion and particle at
Long two processes；And the titanium dioxide with pigment performance has two kinds of crystal forms of anatase titanium dioxide and rutile-type.
In the calcination process of production rutile titanium dioxide, rotary kiln temperature control is the most key, due to golden red
Stone-type titanium dioxide conversion temperature is much higher than the conversion temperature of anatase titanium dioxide, and the probability of titanium dioxide sintering is shown
It writes and is promoted, and need that various rutile-type inversion accelerating agents are added in calcining, to obtain relatively stable rutile titanium dioxide
Powder, therefore, it is necessary to the calcination temperatures in each section inside strict control rotary kiln, meanwhile, existing rotary kiln is generally existing
Energy consumption is high, titanium dioxide easy-sintering causes conversion ratio low, finally obtains the unstable quality of product, especially reducing power, pigment
The problems such as color and serious hardness fluctuations.
In existing patent, application No. is 201721137899.7, the applying date is that the patent of 2017.09.06 discloses one kind
Insulating layer is arranged in sulfuric acid method titanium pigment calcination rotary kiln on the cylinder of rotary kiln, and double heat preservations especially are arranged in high-temperature region
Layer extends material in the time of high-temperature region, keeps metatitanic acid desulfurization more thorough, the transformation of crystal time is longer, and titanium dioxide crystal grain is more
It is uniform and stable.However, the setting of its insulating layer is only capable of slowing down temperature gradient, transformation time extends, and can not guarantee inclined titanium
Acid is uniformly dispersed in calcination process, also rutile-type inversion accelerating agent can not be made to be sufficiently mixed with metatitanic acid, and its burning dress
It sets and cannot guarantee that combustion even, be not thorough phenomenon to be also easy to produce titanium dioxide agglomeration and convert, cause to be mixed with anatase titanium dioxide crystal form；
Meanwhile during actual production rutile titanium dioxide, metatitanic acid is in rotary kiln in drying zone, due to metatitanic acid material
Internal moisture is unevenly distributed and temperature is variant, and easy aggregation is blocking, to influence subsequent transformation of crystal process, easily causes burning
Knot, to influence titanium dioxide quality.
Utility model content
The purpose of this utility model is that: in view of the above problems, provide a kind of rutile type titanium white of producing
Calciner plant obtains material in dehydration sweetening process by setting cutting plate fully dispersed, guarantees subsequent transformation of crystal,
And setting combustion platform forms combustion space, reduces thickness of feed layer, improves the delivery rate of temperature, obtains rutile-type crystal form
To abundant rapid conversion, rutile-type grain growth ensure that, the titanium dioxide primary product made has good reducing power, hardness
And color.
The technical solution adopted in the utility model is as follows:
The calciner plant of the production rutile type titanium white of the utility model, including kiln hood, kiln tail and cylinder, the cylinder
Inner hollow is provided with kiln hood lid at the kiln hood, kiln tail case is provided at the kiln tail, the kiln hood lid and kiln tail case are close
Envelope is mounted on cylinder both ends；The kiln hood, which covers, is provided with burner and discharge port, is provided with feeding port on the kiln tail case
And exhanst gas outlet；Cutting plate is fixedly installed on cylinder inboard wall at the feeding port, between the cutting plate and burner
Cylinder inboard wall on be provided with combustion platform；The cylinder body outer wall is provided with rotational structure.
Further, the cylinder is obliquely installed, and the height of the kiln hood is lower than the height of kiln tail, the burner
Fuel gas supply direction, the feed direction of feeding port are consistent with the inclined direction of cylinder.
Further, the rotational structure includes idler wheel and driving cog wheel rim, and the idler wheel is fixed by the support of tugboat group
On ground or bracket, the driving cog wheel rim is engaged with the transmission gear on transmission device, is connected on the transmission device
Motor, the motor are energized to transmission device, and the transmission device can drive barrel body rotation.
Further, the cutting plate be several, several described cutting plates perpendicular to cylinder be arranged, it is described several
Cutting plate, which intersects, to be fixedly mounted on cylinder inboard wall.
Further, the combustion platform is fixedly mounted on the inner wall in the middle part of cylinder, and the combustion platform is annular in shape.
Further, the trapezoidal shape in combustion platform section, it is oblique close to kiln tail one end, it is set close to kiln hood one end
It is equipped with filter.
Further, the burner is burner, is equipped with feed device at the feeding port.
Further, the discharge port is arranged below kiln hood；The exhanst gas outlet is provided with above kiln tail.
Further, drainage lid, the drainage lid flare are installed on the burner.
In conclusion by adopting the above-described technical solution, the beneficial effects of the utility model are:
1, calciner plant in the present invention forges inner barrel formation by the way that combustion platform is arranged in inner barrel
Space is burnt, thickness of feed layer is reduced, the temperature of transformation of crystal process is able to maintain that when improving the delivery rate of temperature, and calcining
At 800 ~ 860 DEG C, rutile-type crystal form is made to obtain abundant rapid conversion.
2, by feeding port be arranged cutting plate, when material is conveyed into kiln tail case front end, cutting plate can by material into
Row dispersion, avoids bulk materials from assembling, makes the abundant fast dewatering of material, improve efficiency, and be able to ascend subsequent desulfurization, crystal form
The transformation efficiency of conversion and grain growth.
3, using the calciner plant of the utility model, the production capacity of single device can be improved 55% or more, and calcination time can
It reducing to 8h, the quality for the rutile type titanium white that can and obtain is more stable, and sintering and clustering phenomena are reduced between particle,
Obtained particle shape is round and smooth regular, and the ratio of first-grade products is increased to 99%.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model calciner plant；
Fig. 2 is sectional view along A-A in Fig. 1；
Marked in the figure: 1- kiln hood, 2- filter, 3- cylinder, 4- combustion platform, 5- cutting plate, 6- exhanst gas outlet, 7- feeding dress
It sets, 8- kiln tail, 9- motor, 10- transmission device, 11- transmission gear, 12- driving cog wheel rim, 13- tugboat group, 14- idler wheel, 15-
Drainage lid, 16- discharge port, 17- burner.
Specific embodiment
With reference to the accompanying drawing, the utility model is described in detail.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Embodiment 1
As shown in Figure 1, the utility model production rutile type titanium white calciner plant, including kiln hood 1, kiln tail 8 with
Cylinder 3,3 inner hollow of cylinder form calcination area, and the calcining of metatitanic acid carries out in hollow structure inside, the kiln
It is provided with kiln hood lid at first 1, kiln tail case is provided at the kiln tail 8, the kiln hood lid and kiln tail case are sealingly mounted at cylinder 3
Both ends, preferably available screw thread or the sealed connection mode for being bolted but being not limited to screw thread or bolt, to guarantee to seal in kiln
Calcining is normally carried out, while being convenient for the cleaning or maintenance of calciner plant；The kiln hood, which covers, is provided with burner 17 and discharging
Mouthfuls 16, feeding port and exhanst gas outlet 6 are provided on the kiln tail case, and feed device 7, preferably feed device are provided at feeding port
For feed screw；Metatitanic acid material enters from the feeding port of kiln tail case, is discharged after calcination reaction from discharge port, obtains gold
Red stone-type titanium dioxide primary product；It is fixedly installed with cutting plate 5 on 3 inner wall of cylinder at the feeding port, when material is conveyed into kiln tail
When case front end, cutting plate can disperse material, and bulk materials is avoided to assemble, and make the abundant fast dewatering of material, improve effect
Rate, and it is able to ascend the transformation efficiency of subsequent desulfurization, transformation of crystal and grain growth；Further, the cutting plate 5 is filled with burning
Combustion platform 4 is provided on 3 inner wall of cylinder between setting, the setting of combustion platform is capable of forming combustion space, reduces thickness of feed layer, mentions
The delivery rate of high-temperature makes rutile-type crystal form obtain abundant rapid conversion.
As a preferred embodiment, the burner 17 includes gas inlet pipe, main blast pipe and secondary blast pipe, secondary
Blast pipe one end is arranged in gas inlet pipe, flushes with the combustion fire end of gas inlet pipe, the combustion fire end setting of gas inlet pipe
In main blast pipe, the combustion fire end of gas inlet pipe is arranged in main blast pipe, and slightly shorter than main blast pipe, preferably combustion gas can be coal
Gas.
In order to further enhance the efficiency of calcining, the titanium dioxide primary product enable is sufficiently discharged, and the cylinder 3 tilts
Setting, preferred angled degree are 4%-6%, and the height of kiln hood 1 is lower than the height of kiln tail 8, and the first product obtained after calcining is enable to converge
In discharge port, it is then discharged out；Further, in order to guarantee that kiln temperature is uniform, reaction is abundant, the fuel gas supply of the burner
Direction, the feed direction of feeding port are consistent with the inclined direction of cylinder 3.
Embodiment 2
Based on the above embodiment 1, as shown in Figure 1,3 outer wall of the cylinder is provided with rotational structure, rotational structure being capable of band
Dynamic cylinder 3 rotates, and barrel body rotation is able to drive material and turns to eminence, then falls, and keeps its dispersion more abundant, to calcine temperature
Degree more evenly, further avoids agglomerating sintering, guarantees crystal form molding, and further, drum speed can be controlled in 1-3min/ circle.It is excellent
Selection of land, the rotational structure include idler wheel 14 and driving cog wheel rim 12, and the idler wheel 14 is supported and fixed on ground by tugboat group 13
On face or bracket, the driving cog wheel rim 12 is engaged with the transmission gear 11 on transmission device 10, is connected on the transmission device 11
It is connected to motor 9, motor 9 is energized to transmission device 11, and transmission device is run, the transmission gear rotation on transmission device, driving
The rotation of driving cog wheel rim, to drive barrel body rotation, the structure of the rotational structure is simple, easy to operate, can further ensure
The progress reacted in cylinder.
Embodiment 3
Based on the above embodiment 1 and embodiment 2, as shown in Fig. 2, the cutting plate 5 is several, several described sub-materials
Plate 5 is arranged perpendicular to cylinder 3, several described cutting plates 5, which intersect, to be fixedly mounted on 3 inner wall of cylinder, can will preferably divide
Flitch is clamped or is bolted but is not limited to the connection type of clamping or bolt.Cutting plate can longitudinally will be before cylinder feed device
The space at end is divided into multiple, when material is conveyed into inner barrel, can first pass through cutting plate, at the first time be divided material
It dissipates, spreads internal batch temperature sufficiently, be heated evenly, to promote the efficiency of dehydration and desulfurization.
As a preferred embodiment, the combustion platform 4 is fixedly mounted on the inner wall at 3 middle part of cylinder, preferably spiral shell
Bolt but the connection type for being not limited to bolt；Further, the combustion platform 4 is annular in shape, the trapezoidal shape in section, close to cylinder inboard wall
Length be greater than close to cylinder hollow space length, preferably the length of combustion platform be 5.5m-8m, be highly 300mm-500mm,
Further, combustion platform is oblique close to 8 one end of kiln tail, convenient for guiding to material on combustion platform, is provided with close to 1 one end of kiln hood
Filter 2, filter is vertical with cylinder, can distinguish crystal form shaping area with grain growth, be more advantageous to temperature control and material at
Type, and the aperture of filter is not higher than 1mm, to guarantee that material can pass through, and avoids material agglomerating.
Further, the discharge port 16 is arranged below kiln hood 1, is discharged convenient for rutile type titanium white；The flue gas goes out
Mouth 6 is provided with 8 top of kiln tail, is discharged convenient for flue gas；Further, in kiln tail case at cylinder settable strainer, avoid material
Calcining operation is influenced into kiln tail case.Preferably, being equipped with drainage lid 15 on the burner 17, the drainage lid 15 is in loudspeaker
Shape, loudspeaker open end are slightly larger than burner port, and loudspeaker open end diameter is less than cylinder internal diameter；Drainage lid has drainage
Effect, keeps combustion gas fully dispersed, convenient for controlling the temperature of kiln hood lid front end, is maintained at transformation of crystal calcination temperature at combustion platform
800 ~ 860 DEG C, so that metatitanic acid can sufficiently convert under the action of rutile-type promotor.
In above-mentioned all embodiments, the diameter of the calciner plant rotary kiln of the utility model is 3.6m, long 48m, inclination
Degree is 4%-6%, and cylinder is rolled by carbon steel sheet, and cylinder inboard wall is provided with insulating layer, and insulating layer is spread by 300mm alumina firebrick
If forming.In order to guarantee to calcine effect in kiln, the drainage lid 15, combustion platform 4, filter 2, cutting plate 5 are by heat-resisting material
It is made, combustion platform 4, filter 2, cutting plate 5 are arranged on insulating layer；Insulating layer can be avoided temperature diffusion and be lost, and guarantee to forge
Temperature is burnt, and cylinder external temperature can be reduced, avoids external temperature excessively high, influences operating personnel's operation.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (9)
1. a kind of calciner plant for producing rutile type titanium white, including kiln hood (1), kiln tail (8) and cylinder (3), the cylinder
(3) inner hollow, which is characterized in that be provided with kiln hood lid at the kiln hood (1), be provided with kiln tail case, institute at the kiln tail (8)
It states kiln hood lid and kiln tail case is sealingly mounted at cylinder (3) both ends；The kiln hood, which covers, is provided with burner and discharge port
(16), feeding port and exhanst gas outlet (6) are provided on the kiln tail case；Fixed peace on cylinder (3) inner wall at the feeding port
Equipped with cutting plate (5), combustion platform (4) are provided on cylinder (3) inner wall between the cutting plate (5) and burner；It is described
Cylinder (3) outer wall is provided with rotational structure.
2. the calciner plant of production rutile type titanium white as described in claim 1, which is characterized in that the cylinder (3) is inclined
Tiltedly setting, the height of the kiln hood (1) are lower than the height of kiln tail (8), the fuel gas supply direction of the burner, feeding port
Feed direction is consistent with the inclined direction of cylinder (3).
3. the calciner plant of production rutile type titanium white as described in claim 1, which is characterized in that the rotational structure packet
Idler wheel (14) and driving cog wheel rim (12) are included, the idler wheel (14) is supported and fixed on ground or bracket by tugboat group (13),
The driving cog wheel rim (12) is engaged with the transmission gear (11) on transmission device (10), is connected on the transmission device (10)
Motor (9), the motor (9) energize to transmission device (10), and the transmission device (10) can drive cylinder (3) to rotate.
4. the calciner plant of production rutile type titanium white as described in claim 1, which is characterized in that the cutting plate (5)
For several, several described cutting plates (5) are arranged perpendicular to cylinder (3), several described cutting plates (5) intersect fixation
It is mounted on cylinder (3) inner wall.
5. the calciner plant of production rutile type titanium white as described in claim 1, which is characterized in that the combustion platform (4)
It is fixedly mounted on the inner wall in the middle part of cylinder (3), the combustion platform (4) is annular in shape.
6. the calciner plant of production rutile type titanium white as claimed in claim 1 or 5, which is characterized in that the combustion platform
(4) the trapezoidal shape in section, it is oblique close to kiln tail (8) one end, kiln hood (1) one end is provided with filter (2).
7. the calciner plant of production rutile type titanium white as described in claim 1, which is characterized in that the burner is
Burner (17) is equipped with feed device (7) at the feeding port.
8. the calciner plant of production rutile type titanium white as described in claim 1, which is characterized in that the discharge port (16)
Setting is below kiln hood (1)；The exhanst gas outlet (6) is provided with above kiln tail (8).
9. the calciner plant of production rutile type titanium white as claimed in claim 7, which is characterized in that the burner (17)
On drainage lid (15), drainage lid (15) flare are installed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920043045.5U CN209481198U (en) | 2019-01-11 | 2019-01-11 | A kind of calciner plant producing rutile type titanium white |
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| CN201920043045.5U CN209481198U (en) | 2019-01-11 | 2019-01-11 | A kind of calciner plant producing rutile type titanium white |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113582228A (en) * | 2021-08-13 | 2021-11-02 | 广东惠云钛业股份有限公司 | Preparation method and application of high-whiteness titanium dioxide |
| CN113582227A (en) * | 2021-08-03 | 2021-11-02 | 深圳市三工色彩科技有限公司 | Preparation device and method of composite titanium dioxide |
| CN115325816A (en) * | 2022-10-11 | 2022-11-11 | 江苏沪申钛白科技有限公司 | High-purity titanium dioxide production equipment and process thereof |
-
2019
- 2019-01-11 CN CN201920043045.5U patent/CN209481198U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113582227A (en) * | 2021-08-03 | 2021-11-02 | 深圳市三工色彩科技有限公司 | Preparation device and method of composite titanium dioxide |
| CN113582227B (en) * | 2021-08-03 | 2022-12-23 | 深圳市三工色彩科技有限公司 | Preparation device and method of composite titanium dioxide |
| CN113582228A (en) * | 2021-08-13 | 2021-11-02 | 广东惠云钛业股份有限公司 | Preparation method and application of high-whiteness titanium dioxide |
| CN115325816A (en) * | 2022-10-11 | 2022-11-11 | 江苏沪申钛白科技有限公司 | High-purity titanium dioxide production equipment and process thereof |
| CN115325816B (en) * | 2022-10-11 | 2023-06-16 | 江苏沪申钛白科技有限公司 | High-purity titanium dioxide production equipment and process thereof |
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