CN114433308A - Improved method for improving wet grinding capacity and reducing energy consumption - Google Patents
Improved method for improving wet grinding capacity and reducing energy consumption Download PDFInfo
- Publication number
- CN114433308A CN114433308A CN202111669271.2A CN202111669271A CN114433308A CN 114433308 A CN114433308 A CN 114433308A CN 202111669271 A CN202111669271 A CN 202111669271A CN 114433308 A CN114433308 A CN 114433308A
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- China
- Prior art keywords
- wet grinding
- wet
- energy consumption
- phi
- reducing energy
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Links
- 238000001238 wet grinding Methods 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000005265 energy consumption Methods 0.000 title claims abstract description 11
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 15
- 229910052573 porcelain Inorganic materials 0.000 claims abstract description 14
- 239000000919 ceramic Substances 0.000 claims description 9
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 8
- 239000002270 dispersing agent Substances 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 8
- 229910052719 titanium Inorganic materials 0.000 claims description 8
- 239000010936 titanium Substances 0.000 claims description 8
- 239000004115 Sodium Silicate Substances 0.000 claims description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000005457 optimization Methods 0.000 abstract 1
- 238000000227 grinding Methods 0.000 description 9
- 239000002245 particle Substances 0.000 description 5
- 239000011362 coarse particle Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/10—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with one or a few disintegrating members arranged in the container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
- B02C17/183—Feeding or discharging devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
- B02C17/20—Disintegrating members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/06—Selection or use of additives to aid disintegrating
Abstract
The invention discloses an improved method for improving wet grinding capacity and reducing energy consumption, and belongs to the technical field of titanium dioxide production. According to the optimization method provided by the invention, in the titanium dioxide wet grinding process, the filling rate of the wet grinding porcelain balls is adjusted to 59% -60%, the screen allowance of a wet grinding machine is reduced from the original 0.29% to the current 0.2%, the wet grinding feeding amount is increased from the original 5t/h to 6t/h, the wet grinding efficiency is improved, the production input cost and the operation cost of an enterprise are saved, and the economic benefit and the product quality are improved.
Description
Technical Field
The invention belongs to the technical field of titanium dioxide production, and particularly relates to an improved method for improving wet grinding capacity and reducing energy consumption.
Background
In the production process of titanium dioxide, wet grinding and classification of titanium dioxide pigment before surface treatment are very important, because although calcined titanium dioxide coarse particles are subjected to pre-crushing, a certain amount of coarse particles or aggregated particles with the particle size of 1-10 μm are still not crushed, and particularly, when crushing is carried out before use, a plurality of crushed fine particles are extruded together to form agglomerated particles due to the rolling action, and large energy is needed for separation. If the wet grinding effect is not good, the normal operation of the production of the subsequent working section is directly influenced, and the product quality is unqualified.
In the prior art, the grinding efficiency of a wet grinder has a direct relation with the wet grinding temperature, the feeding amount, the adding amount of a dispersing agent, the size of a porcelain ball and the loading amount. If the feeding amount of wet grinding is too large, the retention time is insufficient, the wet grinding is insufficient, large particles which are not completely wet-ground are easy to appear, and if the feeding amount is too small, the particle size is too fine, so that a certain influence is generated on the product, and partial energy waste is caused; the ceramic ball filling rate also has direct influence on the grinding efficiency of a wet grinder, the optimal grinding efficiency cannot be achieved when the filling amount is too large or too small, energy waste is caused, and the product quality cannot meet the requirement.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an improved method for improving wet grinding capacity and reducing energy consumption, which aims to: the filling rate of the wet-grinding ceramic balls is optimized, so that the optimized processing efficiency of the wet-grinding slurry is ensured, and the maximum productivity is realized.
The technical scheme adopted by the invention is as follows:
an improved method for improving wet grinding capability and reducing energy consumption, in the titanium dioxide wet grinding process, the filling rate of wet grinding ceramic balls in a wet grinder is 59-60%.
After the technical scheme is adopted, the screen allowance of the wet grinding machine is reduced from the original 0.29% to the current 0.2%, the wet grinding efficiency is improved, the production input cost and the operation cost of an enterprise are saved, and the economic benefit and the product quality are improved.
Preferably, in the titanium dioxide wet-milling process, sodium silicate is used as a dispersing agent, and the mass ratio of the dispersing agent to the titanium liquid is 0.18-0.23%.
After the optimized scheme is adopted, the dispersing effect of the dispersing agent is better, the coarse particles of titanium dioxide in the titanium liquid are ground more fully, and the product quality is improved.
Preferably, in the titanium dioxide wet grinding process, the feeding flow rate of the titanium liquid is 6 t/h.
After the optimized scheme is adopted, the feeding flow of the titanium liquid is increased from 5t/h to 6t/h, and the grinding efficiency is improved.
Preferably, in the titanium dioxide wet grinding process, wet grinding ceramic balls with the diameters of phi 8, phi 10 and phi 14 are simultaneously used for wet grinding, and the mass ratio of the phi 8, phi 10 and phi 14 ceramic balls is 3:4: 3.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the wet grinding method provided by the invention, the filling rate of the wet grinding porcelain balls is optimized, the screen allowance of the wet grinding machine is reduced from the original 0.29% to the current 0.2%, the wet grinding efficiency is improved, the production input cost and the operation cost of an enterprise are saved, and the economic benefit and the product quality are improved.
2. The invention improves the feeding amount of wet grinding from 5t/h to 6t/h, and improves the grinding efficiency.
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 attached tables 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. 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.
The present invention is described in detail below with reference to Table 1.
Example 1:
the method is characterized in that Pingxiang medium-sized European porcelain balls with three diameters of phi 8, phi 10 and phi 14 are adopted, the ratio of the three diameters of porcelain balls is 3:4:3, and a 1# ball mill is adopted for wet grinding, in the embodiment, the filling rate of the wet-ground porcelain balls is 60% in the wet grinding process, sodium silicate is adopted as a dispersing agent, the mass ratio of the dispersing agent to titanium liquid is 0.18%, and the feeding flow rate of the titanium liquid in the wet grinding process is 6 t/h. The sieve residue was measured at different currents (unit a) respectively and the results are shown in table 1.
Comparative example 1
The experimental conditions of the examples were substantially the same except that the filling rate of the wet-milled porcelain balls was 50% in the example. The screen residue was measured at different currents, respectively, and the experimental results are shown in table 1.
Comparative example 2
The experimental conditions of the examples were substantially the same except that the filling rate of the wet-milled porcelain balls was 55% in the example. The screen allowance was measured at different currents, respectively, and the experimental results are shown in table 1.
Comparative example 3
The experimental conditions of the examples were substantially the same except that the filling rate of the wet-milled porcelain balls was 65% in the example. The screen allowance was measured at different currents, respectively, and the results are shown in table 1.
Table 1:
analysis of the experimental data shows that when the filling amount of the porcelain balls adopted by the invention is 60%, the average value of the screen residue is minimum and is 0.20%. When the filling amount of the porcelain balls is 50%, the average value of the screen residue is 6.49%, and the quality does not reach the standard; when the filling amount of the porcelain balls is 65%, the average value of the screen residue is 5.21%, and the same quality does not reach the standard; when the porcelain ball filling amount is 55%, the average value of the screen residue is 0.29%, although the quality can be achieved, the screen residue is still higher than the screen residue of the invention by 0.20%. Therefore, the optimal ceramic ball filling amount can be achieved at 60% ceramic ball filling amount, the wet grinding efficiency can be improved, and the cost can be reduced. In addition, the invention improves the wet grinding feeding flow from 5t/h to 6t/h, improves the grinding efficiency on the premise of not reducing the grinding quality, reduces the energy consumption, realizes the maximum capacity of the grinding machine, and improves the service efficiency of the grinding machine.
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 (4)
1. An improved process for increasing wet milling capacity and reducing energy consumption, characterized by: in the titanium dioxide wet milling process, the filling rate of wet milling porcelain balls in a wet mill is 59-60%.
2. An improved method of increasing wet milling capacity and reducing energy consumption according to claim 1 wherein: in the wet grinding process of titanium dioxide, sodium silicate is used as a dispersing agent, and the mass ratio of the dispersing agent to titanium liquid is 0.18-0.23%.
3. An improved method of increasing wet milling capacity and reducing energy consumption according to claim 1 wherein: in the wet grinding process of the titanium dioxide, the feeding flow rate of the titanium liquid is 6 t/h.
4. An improved method of increasing wet milling capacity and reducing energy consumption according to claim 1 wherein: in the titanium dioxide wet grinding process, wet grinding ceramic balls with the diameters of phi 8, phi 10 and phi 14 are adopted for wet grinding simultaneously, and the mass ratio of the phi 8, phi 10 and phi 14 ceramic balls is 3:4: 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111669271.2A CN114433308A (en) | 2021-12-31 | 2021-12-31 | Improved method for improving wet grinding capacity and reducing energy consumption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111669271.2A CN114433308A (en) | 2021-12-31 | 2021-12-31 | Improved method for improving wet grinding capacity and reducing energy consumption |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114433308A true CN114433308A (en) | 2022-05-06 |
Family
ID=81365596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111669271.2A Pending CN114433308A (en) | 2021-12-31 | 2021-12-31 | Improved method for improving wet grinding capacity and reducing energy consumption |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114433308A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016146944A1 (en) * | 2015-03-19 | 2016-09-22 | Institut National Polytechnique De Toulouse | Method for preparing materials made from sulfur-doped titanium dioxide, materials obtained and applications in photocatalysis |
| CN108299862A (en) * | 2018-01-30 | 2018-07-20 | 华东理工大学 | A kind of preparation method of monodisperse titanium dioxide slurry |
| CN109096794A (en) * | 2018-10-09 | 2018-12-28 | 龙蟒佰利联集团股份有限公司 | A kind of preparation method of high durable titanium dioxide |
| CN109233344A (en) * | 2018-11-26 | 2019-01-18 | 攀钢集团攀枝花钢铁研究院有限公司 | The breaking method of sulfate process titanium dioxide first product |
| CN111117297A (en) * | 2019-09-18 | 2020-05-08 | 江苏华力索菲新材料有限公司 | Surface coating process of submicron-grade high-purity titanium dioxide |
| CN112063018A (en) * | 2020-08-26 | 2020-12-11 | 浙江恒澜科技有限公司 | Modified titanium dioxide and preparation method and application thereof |
| CN112457691A (en) * | 2020-11-26 | 2021-03-09 | 海宁澜钛新材料有限公司 | Low-photocatalytic-activity delustering agent and preparation method and application thereof |
| CN112718134A (en) * | 2020-12-17 | 2021-04-30 | 襄阳龙蟒钛业有限公司 | Improved method for improving wet grinding efficiency and reducing abrasion |
| CN113604075A (en) * | 2021-08-31 | 2021-11-05 | 河北吉诚新材料有限公司 | Coating treatment method of special titanium dioxide for plastics |
-
2021
- 2021-12-31 CN CN202111669271.2A patent/CN114433308A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016146944A1 (en) * | 2015-03-19 | 2016-09-22 | Institut National Polytechnique De Toulouse | Method for preparing materials made from sulfur-doped titanium dioxide, materials obtained and applications in photocatalysis |
| CN108299862A (en) * | 2018-01-30 | 2018-07-20 | 华东理工大学 | A kind of preparation method of monodisperse titanium dioxide slurry |
| CN109096794A (en) * | 2018-10-09 | 2018-12-28 | 龙蟒佰利联集团股份有限公司 | A kind of preparation method of high durable titanium dioxide |
| CN109233344A (en) * | 2018-11-26 | 2019-01-18 | 攀钢集团攀枝花钢铁研究院有限公司 | The breaking method of sulfate process titanium dioxide first product |
| CN111117297A (en) * | 2019-09-18 | 2020-05-08 | 江苏华力索菲新材料有限公司 | Surface coating process of submicron-grade high-purity titanium dioxide |
| CN112063018A (en) * | 2020-08-26 | 2020-12-11 | 浙江恒澜科技有限公司 | Modified titanium dioxide and preparation method and application thereof |
| CN112457691A (en) * | 2020-11-26 | 2021-03-09 | 海宁澜钛新材料有限公司 | Low-photocatalytic-activity delustering agent and preparation method and application thereof |
| CN112718134A (en) * | 2020-12-17 | 2021-04-30 | 襄阳龙蟒钛业有限公司 | Improved method for improving wet grinding efficiency and reducing abrasion |
| CN113604075A (en) * | 2021-08-31 | 2021-11-05 | 河北吉诚新材料有限公司 | Coating treatment method of special titanium dioxide for plastics |
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| PB01 | Publication | ||
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Application publication date: 20220506 |