CN207209979U - A kind of sulfuric acid method titanium pigment calcination rotary kiln - Google Patents
A kind of sulfuric acid method titanium pigment calcination rotary kiln Download PDFInfo
- Publication number
- CN207209979U CN207209979U CN201721137899.7U CN201721137899U CN207209979U CN 207209979 U CN207209979 U CN 207209979U CN 201721137899 U CN201721137899 U CN 201721137899U CN 207209979 U CN207209979 U CN 207209979U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- sulfuric acid
- rotary kiln
- acid method
- kiln
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
A kind of sulfuric acid method titanium pigment calcination rotary kiln, it includes burner, cylinder and feed arrangement, the outer surface of cylindrical hollow cylinder is provided with roller and driving cog wheel rim, roller is supported and fixed on ground or support by tugboat group, driving cog wheel rim engages with the travelling gear on speed reduction gearing, speed reduction gearing drives travelling gear, and so as to drive driving cog wheel rim, driving cog wheel rim drives cylinder using tugboat group as fulcrum；Feed arrangement is arranged on the feed end of cylinder, and the feed end of cylinder is provided with kiln tail case, and kiln tail case is provided with exhanst gas outlet；Burner is arranged on the discharge end of cylinder, and the discharge end of cylinder is provided with kiln head box；Kiln head box is provided with discharging opening；The diameter of described cylinder feed end is less than the diameter of discharge end；The cylinder inboard wall of major diameter is provided with double insulation, and the cylinder inboard wall of minor diameter is provided with Single-layer Insulation layer.Rotary kiln of the present utility model has the advantages of more efficient, low energy consumption, titanium white calcining quality is more stable.
Description
Technical field
The technical field of titanium white production equipment is the utility model is related to, specifically a kind of efficient low-consume sulfuric acid method titanium pigment
Calcination rotary kiln.
Background technology
Sulfuric acid method titanium pigment production is the mixing of technology sulfuric acid, the reaction that titanium dioxide manufacturer of China generally uses, and is made
Titanium liquid, then through sedimentation, heat filtering, crystallization, separation, refined filtration concentration and clarity, remove ferrous iron therein, obtain meeting water
Solve the titanium liquid of index.Titanium dioxide calcination process is most important three processes of quality control in sulfuric acid method titanium pigment production technology
One of.Calcination process process is as follows：The metatitanic acid that washing step comes is fed after diaphragm filter press press dewatering, then through spiral
Device is pushed into the calcination rotary kiln for being 3% to 6% with gradient from higher-end, and rotary kiln makees uniform rotation, and metatitanic acid turns with kiln
It is dynamic slowly to be moved from the high-end of kiln to low side, burner by air and coal gas mixing after-combustion generation flame and by flame from kiln
Low side is blown into kiln, and high temperature gas flow heats metatitanic acid through full kiln, is reverse flow between high temperature gas flow and metatitanic acid, inclined titanium
Acid finally comes out, entering back into thunder after the cooling of supercooling kiln covers by processes such as dehydration, desulfurization, transformation of crystal from the low side of kiln
Pulverizer carries out crushing and becomes finished product.
Calcining is to control last one of crux process of titanium dioxide quality, and therefore, the design of rotary kiln is particularly important, especially
It is back segment and the transformation of crystal area of desulfurization zone, temperature and thermograde herein will meet the calcine technology requirement of titanium dioxide.It is existing
Some full kilns of sulfuric acid method titanium pigment calcination rotary kiln are all one layer of refractory brick, and radiating is big, high energy consumption, and high-temperature region thermograde mistake
Greatly, it is unfavorable for the stable progress of transformation of crystal.Open source literature also reports some sulfuric acid method titanium pigment calcination rotary kilns, such as：
1st, Chinese patent：Sulfuric acid method titanium pigment calcination rotary kiln, application number 201420672320.7, the applying date
2014.11.12, the super color titanium white science and technology of patentee（Anhui）Co., Ltd, the Tongling Anhui Tongling County five of address 244000
Loose town Jin Cheng industry parks, inventor：Fang Yun, generation triumph, summary：The utility model discloses a kind of sulfuric acid method titanium pigment to calcine back
Rotary kiln, including kiln body, feed device, burner, one end of kiln body is kiln hood, the other end is kiln tail, feed device close to kiln tail, burn
For mouth close to kiln hood, feed device includes frame, and motor, bearing, feed pipe are fixed with frame, be fixed with feed pipe hopper,
Feed pipe is being provided with opening with hopper corresponding position, is provided with rotating shaft in feed pipe, rotating shaft outer rim connects several helical blades and knife
Piece；Burner includes burner body and the burner head that be connected with burner body, is provided with baffle plate at burner head, the side of baffle plate and
The first side of burner is brought into close contact to form sealing.After employing this structure, feed device can break up the filter of titanium dioxide hydrolysate
Cake, it is easy to be dehydrated, calcines, burner can regulates and controls combustion gas and other gases（Mixing ratio so that fuel combustion is abundant, save
The energy, so as to the effect for ensureing cake dewatering, calcining.
2nd, Chinese patent：Sulfuric acid method titanium pigment calcining rotary kiln, application number：201310067171.1 the applying date：
2013.03.04 applicant：Guangxi Gold Mao Tai industry Co., Ltd, address：543300 Guangxi Zhuang Autonomous Region Teng County industry park, hair
A person of good sense：Chai Chunwang, summary：Sulfuric acid method titanium pigment calcining rotary kiln, including cylinder, combustion chamber and kiln hood, middle cylinder by
Three groups of support roller supports, cylinder both ends are sealed using diaphragm seal, and diaphragm seal arranges that cylinder gradient is 6%-8%, in cylinder in fish scale-shaped
Body separates out and courage jacking mouth is provided with material mouth 3.5m-5.5m, and courage jacking mouth includes contraction mouth (2), trunnion section (3) and expands mouth
(4) lifting blade (1), is provided with before contraction mouth, lifting blade is axially uniformly arranged along cylinder.The rotary kiln, there is production capacity height, energy
The advantages of consuming titanium dioxide steady quality that is low, being calcined.
The content of the invention
The purpose of this utility model is to provide a kind of rotary kiln for being more reasonably used for sulfuric acid method titanium pigment calcining, the revolution
Kiln furnitures have the advantages of more efficient, low energy consumption, titanium white calcining quality is more stable.
A kind of sulfuric acid method titanium pigment calcination rotary kiln, it includes burner, cylinder and feed arrangement, cylindrical hollow cylinder
The outer surface of body is provided with roller and driving cog wheel rim, and roller is supported and fixed on ground or support by tugboat group, driving cog
Wheel rim engages with the travelling gear on speed reduction gearing, speed reduction gearing driving travelling gear, so as to drive travelling gear
Circle, driving cog wheel rim drive cylinder using tugboat group as fulcrum；Feed arrangement is arranged on the feed end of cylinder, the charging of cylinder
End is provided with kiln tail case, and kiln tail case is provided with exhanst gas outlet；Burner is arranged on the discharge end of cylinder, the discharge end installation of cylinder
There is kiln head box；Kiln head box is provided with discharging opening；The diameter of described cylinder feed end is less than the diameter of discharge end；I.e. from discharge end
Start to the barrel diameter at 1/3rd to a quarter length of cylinder to be more than the diameter of remaining barrel lenght；Major diameter
Cylinder inboard wall is provided with double insulation, and the cylinder inboard wall of minor diameter is provided with Single-layer Insulation layer.Cylinder after heat-insulation layer is laid,
The internal diameter size of whole cylinder is identical.
Described double insulation is made up of inner thermal insulating layer and external thermal insulation.The cylinder inboard wall of major diameter is also set up in two layers
Heat-insulation layer, ensure that the internal diameter size of whole cylinder is identical after heat-insulation layer is set.
Described Single-layer Insulation layer is external thermal insulation.
Described cylinder is rolled by carbon steel sheet to be formed.Cylinder uses stepped construction, and the diameter of the feed end of cylinder is less than
The diameter of the diameter of discharge end, an i.e. discharge end step bigger than the diameter of feed end.The rotation centerline and horizontal line of cylinder
Into 2-10 degree angle.
Described external thermal insulation is formed by the laying of 114-228mm light-weight insulating bricks.
Described inner thermal insulating layer is formed by the laying of 160mm alumina firebricks.
Described feed arrangement is screw conveying feeding device.
Burner uses gas burner, and gas burner includes gas inlet pipe, main blast pipe and secondary blast pipe, it is secondary enter
Airduct one end is arranged in gas inlet pipe, concordant with the combustion fire end of gas inlet pipe, and the combustion fire end of gas inlet pipe is arranged on
In main blast pipe, the combustion fire end of gas inlet pipe contracts in main blast pipe, slightly shorter than main blast pipe.
The cylinder inboard wall of sulfuric acid method titanium pigment calcination rotary kiln of the present utility model is provided with inner thermal insulating layer；Inner thermal insulating layer by
The laying of 160mm alumina firebricks forms；Start this segment distance to discharge end at from discharge end 1/3rd to a quarter
Cylinder body outer wall on be provided with external thermal insulation.Due to being to add to have built light-weight insulating brick by laying bricks or stones into fire end-high-temperature region in discharge end, high temperature
The cylinder external skin temperatures ratio in area, which is not provided with light-weight insulating brick, reduces 150-250 DEG C, and radiating is reduced, and the high-temperature region of cylinder extends,
The thermograde of high-temperature region slows down, and time of the material in high-temperature region is longer, and desulfurization is more thorough, and the transformation of crystal time is abundant, crystal grain
Evenly, product is more stable.Using calcination rotary kiln of the present utility model, maximum temperature can reduce by 50 DEG C in kiln, from high-temperature region
The workshop temperature of 5 meters of distances of cylinder can reduce 10-20 DEG C, and smokeless consumption of coal can reduce 10-14%, and titanium white calcining quality is more steady
It is fixed, the ratio of first-grade products is calcined up to 98%.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model sulfuric acid method titanium pigment calcination rotary kiln；
Sequence number is entitled in figure：
1st, burner, 2, kiln head box, 3, cylinder, 4, external thermal insulation, 5, inner thermal insulating layer, 6, kiln tail case, 7, feed arrangement, 8,
Exhanst gas outlet, 9, tugboat group, 10, roller, 11, speed reduction gearing, 12, travelling gear, 13, driving cog wheel rim, 14, discharging
Mouthful.
Embodiment
In order that the technical solution of the utility model and advantage are clearer, with reference to embodiment of the present utility model,
The technical solution of the utility model is clearly and completely described.
As shown in the figure：
Embodiment 1
Sulfuric acid method titanium pigment calcination rotary kiln of the present utility model, including burner 1, cylinder 3 and feed arrangement 7, in post
The outer surface of the hollow cylinder 3 of shape is provided with roller 10 and driving cog wheel rim 13, and roller 10 is supported and fixed on ground by tugboat group 9
On face or support, driving cog wheel rim 13 engages with the travelling gear 12 on speed reduction gearing 11, and speed reduction gearing 11 can drive
Dynamic cylinder 3 rotates；Feed arrangement 7 is arranged on the feed end of cylinder 3, and the feed end of cylinder 3 is provided with kiln tail case 6, and kiln tail case 6 is set
It is equipped with exhanst gas outlet 8；Burner 1 is arranged on the discharge end of cylinder 3, and the discharge end of cylinder 3 is provided with kiln head box 2；Kiln head box 2 is set
It is equipped with discharging opening 14；The diameter of the described feed end of cylinder 3 is less than the diameter of discharge end；To cylinder 3 i.e. since discharge end
Barrel diameter at 1/3rd to a quarter length is more than the diameter of remaining barrel lenght；The inwall of cylinder 3 of major diameter is set
Double insulation is equipped with, the inwall of cylinder 3 of minor diameter is provided with Single-layer Insulation layer.Cylinder 3 is after heat-insulation layer is laid, whole cylinder
Internal diameter size it is identical.
Described double insulation is made up of inner thermal insulating layer 5 and external thermal insulation 4.
Described Single-layer Insulation layer is external thermal insulation 4.
Described cylinder 3 is rolled by carbon steel sheet to be formed.
Described inner thermal insulating layer 5 is formed by light-weight insulating brick laying.
Described external thermal insulation 4 is formed by alumina firebrick laying.
Embodiment 2
Sulfuric acid method titanium pigment calcination rotary kiln of the present utility model, including burner 1, cylinder 3 and feed arrangement 7, in post
The outer surface of the hollow cylinder 3 of shape is provided with roller 10 and driving cog wheel rim 13, and roller 10 is supported and fixed on ground by tugboat group 9
On face or support, driving cog wheel rim 13 engages with the travelling gear 12 on speed reduction gearing 11, and speed reduction gearing 11 can drive
Dynamic cylinder 3 rotates；Feed arrangement 7 is arranged on the feed end of cylinder 3, and the feed end of cylinder 3 is provided with kiln tail case 6, and kiln tail case 6 is set
It is equipped with exhanst gas outlet 8；Burner 1 is arranged on the discharge end of cylinder 3, and the discharge end of cylinder 3 is provided with kiln head box 2；Kiln head box 2 is set
It is equipped with discharging opening 14；The diameter of the described feed end of cylinder 3 is less than the diameter of discharge end；To cylinder 3 i.e. since discharge end
Barrel diameter at 1/3rd to a quarter length is more than the diameter of remaining barrel lenght；The inwall of cylinder 3 of major diameter is set
Double insulation is equipped with, the inwall of cylinder 3 of minor diameter is provided with Single-layer Insulation layer.Cylinder 3 is after heat-insulation layer is laid, whole cylinder
Internal diameter size it is identical.
Described double insulation lays two layers of light-weight insulating brick.
Described Single-layer Insulation layer laying individual layer alumina firebrick.
Described cylinder 3 is rolled by carbon steel sheet to be formed.
Application Example
1st, Guangxi titanium white Co., Ltd, is provided with titanium dioxide calcination rotary kiln of the present utility model, and cylinder of rotary kiln is straight
Footpath 2400mm, length 42000mm, steel plate thickness 18mm, to the cylinder of this segment distance of discharge end at from port of export a quarter
Outer wall has built light-weight insulating brick by laying bricks or stones, i.e., starts to increase barrel diameter at 10 meters to 2628mm, one layer of 160mm of cylinder inboard wall block height
Aluminium refractory brick.For cylinder after laying insulating brick and refractory brick, the internal diameter size of whole cylinder is identical.Using of the present utility model time
Rotary kiln, yield is identical, in the case of product type identical, the maximum temperature of high-temperature region can reduce by 50 DEG C, high-temperature region cylinder
Outside wall temperature can reduce by 150 DEG C, and the workshop temperature with a distance from 5 meters from high-temperature region cylinder can reduce by 10 DEG C, and smokeless consumption of coal can be reduced
10%, the calcining ratio of first-grade products brings up to 98% by original 90%.
2nd, Guangxi titanium white Co., Ltd, is provided with titanium dioxide calcination rotary kiln of the present utility model, and cylinder of rotary kiln is straight
Footpath 2400mm, length 42000mm, steel plate thickness 18mm, to the cylinder of this segment distance of discharge end at from port of export a quarter
Outer wall has built light-weight insulating brick by laying bricks or stones, i.e., starts to increase barrel diameter at 15 meters to 2856mm, first build two layers by laying bricks or stones in large cylinder inwall
Common 228mm light-weight insulating bricks, build one layer of 160mm high alumina to the full kiln of charging extreme direction from the discharge end of kiln again on this basis
Refractory brick.For cylinder after laying insulating brick and refractory brick, the internal diameter size of whole cylinder is identical.Using revolution of the present utility model
Kiln, yield is identical, in the case of product type identical, the maximum temperature of high-temperature region can reduce by 50 DEG C, high-temperature region cylinder it is outer
Wall temperature can reduce by 250 DEG C, and the workshop temperature with a distance from 5 meters from high-temperature region cylinder can reduce by 20 DEG C, and smokeless consumption of coal can be reduced
14%, the calcining ratio of first-grade products brings up to 98% by original 90%.
It is to limitation of the present utility model that described above, which is not, and the utility model is also not limited to examples detailed above, this technology
The those of ordinary skill in field, in essential scope of the present utility model, the variations, modifications, additions or substitutions made should all belong to
In the scope of protection of the utility model.
Claims (7)
- A kind of 1. sulfuric acid method titanium pigment calcination rotary kiln, it is characterised in that：Including burner（1）, cylinder（3）And feed arrangement （7）, cylindrical hollow cylinder（3）Outer surface be provided with roller（10）With driving cog wheel rim（13）, roller（10）By dragging Wheel group（9）It is supported and fixed on ground or support, driving cog wheel rim（13）With speed reduction gearing（11）On travelling gear （12）Engagement, speed reduction gearing（11）Cylinder can be driven（3）Rotate；Feed arrangement（7）Installed in cylinder（3）Feed end, Cylinder（3）Feed end kiln tail case is installed（6）, kiln tail case（6）It is provided with exhanst gas outlet（8）；Burner（1）Installed in cylinder （3）Discharge end, cylinder（3）Discharge end kiln head box is installed（2）；Kiln head box（2）It is provided with discharging opening（14）；Described cylinder Body（3）To cylinder since discharge end（3）1/3rd to a quarter length at barrel diameter more than remaining cylinder grow The diameter of degree；The cylinder of major diameter（3）Inwall is provided with double insulation, the cylinder of minor diameter（3）Inwall is provided with individual layer guarantor Warm layer.
- 2. sulfuric acid method titanium pigment calcination rotary kiln according to claim 1, it is characterised in that：Described double insulation by Inner thermal insulating layer（5）And external thermal insulation（4）Composition.
- 3. sulfuric acid method titanium pigment calcination rotary kiln according to claim 1, it is characterised in that：Described Single-layer Insulation layer is External thermal insulation（4）.
- 4. sulfuric acid method titanium pigment calcination rotary kiln according to claim 1, it is characterised in that：Described cylinder（3）By carbon Steel plate, which rolls, to be formed.
- 5. sulfuric acid method titanium pigment calcination rotary kiln according to claim 2, it is characterised in that：Described inner thermal insulating layer（5） Formed by light-weight insulating brick laying.
- 6. sulfuric acid method titanium pigment calcination rotary kiln according to claim 2, it is characterised in that：Described external thermal insulation（4） Formed by alumina firebrick laying.
- 7. sulfuric acid method titanium pigment calcination rotary kiln according to claim 1, it is characterised in that：Cylinder（3）Pivot Line and horizontal line are into 2-10 degree angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721137899.7U CN207209979U (en) | 2017-09-06 | 2017-09-06 | A kind of sulfuric acid method titanium pigment calcination rotary kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721137899.7U CN207209979U (en) | 2017-09-06 | 2017-09-06 | A kind of sulfuric acid method titanium pigment calcination rotary kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207209979U true CN207209979U (en) | 2018-04-10 |
Family
ID=61823324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721137899.7U Active CN207209979U (en) | 2017-09-06 | 2017-09-06 | A kind of sulfuric acid method titanium pigment calcination rotary kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207209979U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107585785A (en) * | 2017-09-06 | 2018-01-16 | 广西雅照钛白有限公司 | A kind of sulfuric acid method titanium pigment calcination rotary kiln |
| CN110630219A (en) * | 2019-08-27 | 2019-12-31 | 河北迪运化工科技有限公司 | Kiln for burning oil-containing mixture at high temperature |
-
2017
- 2017-09-06 CN CN201721137899.7U patent/CN207209979U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107585785A (en) * | 2017-09-06 | 2018-01-16 | 广西雅照钛白有限公司 | A kind of sulfuric acid method titanium pigment calcination rotary kiln |
| CN107585785B (en) * | 2017-09-06 | 2023-12-05 | 广西雅照钛白有限公司 | Rotary kiln for calcining titanium dioxide by sulfuric acid method |
| CN110630219A (en) * | 2019-08-27 | 2019-12-31 | 河北迪运化工科技有限公司 | Kiln for burning oil-containing mixture at high temperature |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207209979U (en) | A kind of sulfuric acid method titanium pigment calcination rotary kiln | |
| CN103575095B (en) | Cascading type rotary kiln | |
| CN104016331B (en) | A kind of ultrathin flexible graphite paper production line | |
| CN209481197U (en) | A kind of rotary kiln producing anatase thpe white powder | |
| CN201397018Y (en) | Internally heated contact-type cylinder dryer | |
| CN107957189A (en) | One kind swings kiln | |
| CN202254766U (en) | Cylinder of electrical heating rotary cylinder vacuum roasting furnace and electrical heating rotary cylinder vacuum roasting furnace | |
| CN102564110A (en) | Lime rotary kiln | |
| CN103145356B (en) | Process and equipment for preparing alpha and beta mixed semi-hydrated gypsum powder | |
| CN105036574A (en) | Energy-saving environment-friendly lime shaft kiln | |
| CN201381264Y (en) | Rotary drum type sludge dryer | |
| CN107585785A (en) | A kind of sulfuric acid method titanium pigment calcination rotary kiln | |
| CN210419769U (en) | High-temperature suspension fluidization rapid calcination system for powder materials | |
| CN100366535C (en) | Method for calcining kaolin by rotary calcining kiln and rotary calcining kiln thereof | |
| CN208139822U (en) | A kind of swing kiln | |
| CN102381848A (en) | Efficient direct-heating gypsum calcination rotary kiln | |
| CN210533024U (en) | Horizontal rolling suspension calcining device for powder materials | |
| CN103183381B (en) | Rotary kiln for calcining titanium dioxide by sulfuric acid method | |
| CN213067133U (en) | Rotary furnace waste heat recovery device for zinc oxide production | |
| CN201971745U (en) | Multi-tube calcining kiln for desulfurized gypsum | |
| CN201314778Y (en) | Dual-barrel rotary kiln | |
| CN101441036B (en) | Novel rotary kiln | |
| CN202157014U (en) | High-efficiency and directly-heating gypsum calcining rotary kiln | |
| CN204824624U (en) | Energy -concerving and environment -protective type lime shaft kiln | |
| CN206273812U (en) | A kind of kiln structure of upright active lime calcining furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |