CN204848305U - Sulfate process titanium dioxide powder production equipment for acidolysis - Google Patents
Sulfate process titanium dioxide powder production equipment for acidolysis Download PDFInfo
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- CN204848305U CN204848305U CN201520330738.4U CN201520330738U CN204848305U CN 204848305 U CN204848305 U CN 204848305U CN 201520330738 U CN201520330738 U CN 201520330738U CN 204848305 U CN204848305 U CN 204848305U
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- ball mill
- acidolysis
- sulfuric acid
- bag filter
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Abstract
The utility model discloses a sulfate process titanium dioxide powder production equipment for acidolysis, it including the feed hopper that connects gradually, chain convey machine, a bucket elevator, no. Two chain convey machines, grind before ore bucket, disk feeder, ball mill, selection powder machine, cyclone, bag filter, no. Four chain convey machines, the 2nd bucket elevator, powdered ore bunker and preblend the groove are connected with dust exhausting fan on the bag filter, be connected with no. Three the chain convey machine on selection powder machine, and the entry linkage of no. Three chain convey machines and ball mill has the shurry pump at the exit linkage that preblends the groove, and the shurry pump is connected with the distributor, and the distributor is connected with the acidolysis jar, has the titanium liquid pump at the exit linkage of acidolysis jar, be connected with complex burning fan and hot -blast furnace on the ball mill, be equipped with pipeline, fresh water (FW) feed pipe, iron powder interpolation pipe and tail gas discharge pipe that the spent acid metering tank is connected on the acidolysis jar. The utility model discloses loading and unloading capacity can be improved, the steam quantity is reduced.
Description
Technical field
The utility model patent relates to a kind of sulfuric acid method titanium pigment production acidolysis equipment, belongs to sulfate process titanium dioxide production technical field.
Background technology
The titanium white production acid hydrolysis method of existing China is:
1, ilmenite concentrate is pulverized; The ilmenite concentrate (80 ~ 100 order) come by ilmenite concentrate storehouse is ore bucket before feed hopper is sent into ground by chain conveyor, chapelet, chain conveyor, sent in ball mill by disk feeder and carry out drying and crushing, the ilmenite taken out of by drying air stream, through powder separating machine classification, the breeze that particle diameter is qualified enters cyclonic separator and bag filter with air-flow, and the accept collected after being separated enters breeze bunker by chain conveyor, chapelet; The underproof meal of particle diameter is sent ball mill back to by chain conveyor and is again pulverized.Accept in breeze bunker adopts air conveying through storehouse pump, sends into the breeze hopper of acidolysis workshop section.Ilmenite concentrate granularity after pulverizing is 320 mesh screen residue < 1%, its water content≤1% of moisture control.
2, the acidolysis of ilmenite concentrate; Through metering ilmenite concentrate powder first with the concentration prepared be 91% sulfuric acid in pre-mixing groove, be mixed into ore pulp, then required acid hydrolysis tank is entered through divider, add the spent acid (or little degree water) of a certain amount of concentration as starting acid, by 91% sulfuric acid dilution heat release, slurry temperature is raised, pass into a small amount of steam again and cause acidolysis reaction, main reaction completed in 10 minutes, stirs simultaneously help reaction to carry out with pressurized air.Reaction makes the most of metal oxide in ilmenite concentrate be decomposed, and forms vitriol, forms titanyl sulfate after the decomposes wherein in ilmenite concentrate.Reaction is thermopositive reaction, and reaction liberated heat makes temperature of charge raise rapidly and accelerates the carrying out of acidolysis reaction further.After main reaction terminates, stop blasting pressurized air, slaking for some time, to improve acidolysis rate.In acid hydrolysis tank, add a certain amount of little degree water after slaking and process water leaches, then add iron powder and the high price Fe3+ reduction in solution is become iron at a low price, after the content of titanous in solution is qualified, go sedimentation operation with pumping, its process flow sheet is as Fig. 2.
The too white production method of above-mentioned sulfuric acid process uses widely, but existing production method applicant finds following deficiency in process of production
1, the sulfuric acid adopted 91% sulfuric acid, need complex acid before using, there is the problem that equipment investment is large, energy loss is large;
2, the pulverizing of ilmenite concentrate requires to be 320 orders, and it requires higher to coal pulverizer, causes that energy consumption is higher, production efficiency is lower;
3, air-transport system environmental pollution is larger;
4, continuity is poor.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind ofly can reduce equipment investment, heat utilization rate is high, production efficiency is high, energy loss is little, the sulfate process titanium dioxide of environmental protection produces acid hydrolysis method and equipment thereof, can overcome the deficiencies in the prior art.
The technical solution of the utility model is
Sulfuric acid method titanium pigment production acidolysis equipment, it comprises ore bucket, disk feeder before the feed hopper connected successively, chain conveyor, the first chapelet, No. two chain conveyors, mill; Ball mill, powder separating machine, cyclonic separator, bag filter, No. four chain conveyors, second chapelet, breeze bunker and pre-mixing groove, bag filter is connected with dedusting fan, powder separating machine is connected with No. three chain conveyors, No. three chain conveyors are connected with the entrance of ball mill, and be connected with shurry pump in the outlet of pre-mixing groove, shurry pump is connected with divider, divider is connected with acid hydrolysis tank, is connected with titanium liquid pump in the outlet of acid hydrolysis tank; Ball mill is connected with combustion air fan and the hotblast stove of cooperation, acid hydrolysis tank is provided with pipeline, process water water service pipe, iron powder adding tube and tail gas discharging pipe that spent acid scale tank connects.
Aforesaid sulfuric acid method titanium pigment production acidolysis equipment is connected with sulfuric acid gauge tank on pre-mixing groove.
Aforesaid sulfuric acid method titanium pigment production acidolysis equipment is on ball mill, be connected with ball mill main air blower, and the air outlet of ball mill main air blower is connected with ball mill and bag filter, and blast inlet is connected with cyclonic separator.
Compared with the prior art, the utility model is a kind of novel acidolysis equipment of being summed up in long-term work by applicant and being drawn, concrete grammar be raw ore break section 80 ~ 100 order ilmenite concentrates of outsourcing are crushed to 200 orders all by directly mixing with the sulfuric acid of 98% without the need to the sulfuric acid of 98% is diluted to 91%, for avoiding moisture content in ilmenite concentrate to cross the sulfuric acid of highly diluted 98% and causing acidolysis reaction, the water content that the mode of heat drying controls in ilmenite concentrate need be adopted, the groove of pre-mixing simultaneously need arrange refrigerating unit, with shurry pump, acid hydrolysis tank is delivered in the acid of mixed ore deposit, add the heat of dilution that a certain amount of little degree water released by dilute sulphuric acid and cause acidolysis reaction, this processing unit has features compared with traditional process equipment: 1, the sulfuric acid of direct use 98% mixes with ilmenite concentrate, eliminate the complex acid operation of acidolysis tank field, save energy consumption, 2, the pulverizing of ilmenite concentrate controls all to pass through at 200 orders, and traditional technology need be crushed to 320 mesh screen residue < 1%, improves the throughput of ball mill, 3, do not need air-transport system, change shurry pump conveying into, improve the environmental pollution caused because of air conveying, 4, adopt the sulfuric acid of diluted acid or process water dilution 98%, utilize its heat of dilution initiation reaction, make use of heat energy better, decrease the consumption of steam, 5, this technique is owing to adopting the conveying of liquid acids ore deposit mixed solution, be particularly suitable for continuous acidolysis with the use of.
Accompanying drawing explanation
fig. 1 is the acidolysis layout of equipment of the present utility model;
fig. 2 is the existing sulfate process titanium dioxide production acidolysis layout of equipment;
each label in Fig. 1 refers to: 1feed hopper; No. 2 chain conveyors; 3. the first chapelet; 4. No. two chain conveyors; 5. ore bucket before mill; 6. disk feeder; 7. combustion air fan; 8. hotblast stove; 9. ball mill; 10. powder separating machine; 11. cyclonic separators; 12. No. three chain conveyors; 13. ball mill main air blowers; 14. bag filters; 15. dedusting fans; 16. No. four chain conveyors; 17. second chapelets; 18. breeze bunkers; 19. sulfuric acid gauge tanks; 20. pre-mixing grooves; 21. shurry pumps; 22. dividers; 23. spent acid scale tanks; 24. acid hydrolysis tanks; 25. titanium liquid pumps; 26. process water water service pipes; 27. iron powder adding tubes; 28. tail gas discharging pipes;
Each label in Fig. 2 refers to: 1 feed hopper; 2. chain conveyor; 3. chapelet; 4. chain conveyor; 5. ore bucket before mill; 6. disk feeder; 7. combustion air fan; 8. hotblast stove; 9. ball mill; 10. powder separating machine; 11. cyclonic separators; 12. chain conveyors; 13. ball mill main air blowers; 14. bag filters; 15. dedusting fans; 16. chain conveyors; 17. chapelets; 18. breeze bunkers; 19. gas-holder; 20. storehouse pumps; 21. mineral hoppers; 22. top, storehouse cloth envelop collectors; 23. sulfuric acid gauge tanks; 24. pre-mixing groove 25. dividers; 26. spent acid scale tanks; 27. acid hydrolysis tanks; 28. acid hydrolysis tanks; 29. titanium liquid pumps.
Embodiment
existing composition graphs 1 is described in detail technology and equipment of the present utility model
One, ilmenite concentrate is pulverized
80 ~ 100 order ilmenite concentrates are sent into feed hopper 1 by a chain conveyor 2 by ilmenite concentrate storehouse, first chapelet 3, the front ore bucket 5 of mill sent into by No. two chain conveyors 4, sent in ball mill 9 respectively by disk feeder 5 again and carry out drying and crushing, drying air stream provided by the combustion air fan 7 be connected on ball mill 9 and hotblast stove 8, the ilmenite taken out of by drying air stream, through powder separating machine 10 classification, the breeze that particle diameter is qualified enters cyclonic separator 11 and bag filter 14 with air-flow, the accept collected after being separated is by No. four chain conveyors 16, second chapelet 17 machine enters breeze bunker 18, the underproof meal of particle diameter is sent ball mill 9 back to by No. three chain conveyors 12 and is again pulverized.The air outlet of the ball mill main air blower 13 on ball mill 9 is connected with ball mill 9 and bag filter 14, and blast inlet is connected with cyclonic separator 11.
Ilmenite concentrate granularity after pulverizing is that 200 orders all pass through, its water content≤0.5% of moisture control.
Two, the acidolysis of ilmenite concentrate
In the below of breeze bunker 18, pre-mixing groove 20 is set, pre-mixing groove 20 is connected with the sulfuric acid gauge tank 19 holding 98% sulfuric acid, open stirring arm and the refrigerating unit of pre-mixing groove 20, by sulfuric acid gauge tank 19,98% vitriol oil of metering is added pre-mixing groove 20, when adding sulfuric acid, sulfuric acid passes into from the bottom of pre-mixing groove 20, can make both Homogeneous phase mixing like this, sour ore deposit mix and blend 25 minutes in whipping process.Be connected with shurry pump 21 in the bottom of pre-mixing groove 20, open pressurized air, adopt shurry pump 21 mixed ore pulp to be added the acid hydrolysis tank 24 that will use through divider 22, stir 5 ~ 10 minutes.
Add the process water of metering by technique water service pipe 26 or little degree water management reaction acid dense 87 ~ 89%, pass into steam if desired, cause main reaction, when there being white cigarette to emerge in pot, stopping steam heating immediately and starting acid hydrolysis tail gas delivery pipe 28.
Main reaction terminates, and stops exhaust treatment system, and adjustment compressed air require is at 150 ~ 200Nm
3/ h.Maturation time 1.5 ~ 2 hours.
With little degree water or the leaching of tap water large discharge, first quick and back slow, leaching temperature controls between 60 ~ 68 DEG C overall leaching speed, whole leaching time about 2 hours.
When being stirred to 65 DEG C ± 1, adding iron powder reduce by special powder adding tube 27, adding iron powder amount need calculate, and will add in batches, and whole reduction process forbids temperature more than 70 DEG C.
After having titanous to occur in titanium liquid, adjustment titanium concentration is at 115 ~ 130g/l, and blowing temperature controls, when (60 ± 1) DEG C, can send into subsequent processing.
Three, Con trolling index:
The temperature of mixture in tempering tank :≤40 DEG C
Mixture sends into the time of acid hydrolysis tank: 20 ~ 30 minutes
Top temperature during reaction: 160 ~ 180 DEG C
Reaction times: 15 ~ 25 minutes
Maturation time: 1.5 ~ 2 hours
Add water leaching time: 2 hours
Reduction temperature :≤70 DEG C
Recovery time: 6 ~ 8 hours
Acidolysis rate: >=95%
Total titanium content: 115 ~ 130g/l in titanium liquid
F value: 1.8 ~ 2.0
Ti
3＋：1～2g/l
Stationary value: >=350ml.
Claims (3)
1. a sulfuric acid method titanium pigment production acidolysis equipment, it comprises ore bucket (5), disk feeder (6) before the feed hopper (1) connected successively, chain conveyor (2), the first chapelet (3), No. two chain conveyors (4), mill, ball mill (9), powder separating machine (10), cyclonic separator (11), bag filter (14), No. four chain conveyors (16), second chapelet (17), breeze bunker (18) and pre-mixing groove (20), bag filter (14) is connected with dedusting fan (15), powder separating machine (10) is connected with No. three chain conveyors (12), No. three chain conveyors (12) are connected with the entrance of ball mill (9), it is characterized in that: be connected with shurry pump (21) in the outlet of pre-mixing groove (20), shurry pump (21) is connected with divider (22), divider (22) is connected with acid hydrolysis tank (24), titanium liquid pump (25) is connected with in the outlet of acid hydrolysis tank (24), ball mill (9) is connected with combustion air fan (7) and the hotblast stove (8) of cooperation, acid hydrolysis tank (24) is provided with pipeline, process water water service pipe (26), iron powder adding tube (27) and tail gas discharging pipe (28) that spent acid scale tank (23) connects.
2. sulfuric acid method titanium pigment production acidolysis equipment according to claim 1, is characterized in that: on pre-mixing groove (20), be connected with sulfuric acid gauge tank (19).
3. sulfuric acid method titanium pigment production acidolysis equipment according to claim 1, it is characterized in that: on ball mill (9), be connected with ball mill main air blower (13), the air outlet of ball mill main air blower (13) is connected with ball mill (9) and bag filter (14), and blast inlet is connected with cyclonic separator (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520330738.4U CN204848305U (en) | 2015-05-21 | 2015-05-21 | Sulfate process titanium dioxide powder production equipment for acidolysis |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520330738.4U CN204848305U (en) | 2015-05-21 | 2015-05-21 | Sulfate process titanium dioxide powder production equipment for acidolysis |
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| CN204848305U true CN204848305U (en) | 2015-12-09 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104843784A (en) * | 2015-05-21 | 2015-08-19 | 贵州东华工程股份有限公司 | Method and equipment for carrying out acidolysis in titanium white production by sulfuric acid process |
| CN106621988A (en) * | 2016-12-13 | 2017-05-10 | 攀钢集团重庆钛业有限公司 | Continuous premixing method for acid mine |
| CN109467122A (en) * | 2019-01-10 | 2019-03-15 | 山东道恩钛业有限公司 | A kind of novel sulfuric acid process titanium dioxide acid hydrolysis method |
| CN115072771A (en) * | 2022-05-24 | 2022-09-20 | 富民龙腾钛业有限责任公司 | Hydrolysis process for controlling primary particle size of titanium dioxide |
-
2015
- 2015-05-21 CN CN201520330738.4U patent/CN204848305U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104843784A (en) * | 2015-05-21 | 2015-08-19 | 贵州东华工程股份有限公司 | Method and equipment for carrying out acidolysis in titanium white production by sulfuric acid process |
| CN106621988A (en) * | 2016-12-13 | 2017-05-10 | 攀钢集团重庆钛业有限公司 | Continuous premixing method for acid mine |
| CN106621988B (en) * | 2016-12-13 | 2020-02-18 | 攀钢集团重庆钛业有限公司 | Continuous premixing process for acid ores |
| CN109467122A (en) * | 2019-01-10 | 2019-03-15 | 山东道恩钛业有限公司 | A kind of novel sulfuric acid process titanium dioxide acid hydrolysis method |
| CN109467122B (en) * | 2019-01-10 | 2020-11-06 | 山东道恩钛业有限公司 | Novel sulfuric acid method titanium dioxide acidolysis method |
| CN115072771A (en) * | 2022-05-24 | 2022-09-20 | 富民龙腾钛业有限责任公司 | Hydrolysis process for controlling primary particle size of titanium dioxide |
| CN115072771B (en) * | 2022-05-24 | 2024-02-13 | 富民龙腾钛业有限责任公司 | Hydrolysis process for controlling primary particle size of titanium dioxide |
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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: 20151209 Termination date: 20170521 |
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| CF01 | Termination of patent right due to non-payment of annual fee |