CN104261707B - A kind of cement outer circulation Vertical Mill preparation system of grain size adjustable distribution - Google Patents
A kind of cement outer circulation Vertical Mill preparation system of grain size adjustable distribution Download PDFInfo
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- CN104261707B CN104261707B CN201410481750.5A CN201410481750A CN104261707B CN 104261707 B CN104261707 B CN 104261707B CN 201410481750 A CN201410481750 A CN 201410481750A CN 104261707 B CN104261707 B CN 104261707B
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- 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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
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Abstract
The present invention relates to the cement outer circulation Vertical Mill preparation system of a kind of grain size adjustable distribution, comprise Vertical Mill, bucket elevator, cement selects powder system, cement selects powder system by two covers and selects powder subsystem to compose in parallel above, after being connected on bucket elevator, its neutron selects powder system to be in series successively by V-type powder separating machine, meticulous powder separating machine, dust-precipitator, blower fan.Cement raw material is after Vertical Mill grinding, feed two covers arranged side by side by bucket elevator and select powder subsystem above, powder subsystem is selected to select the different cement of size-grade distribution by many covers of parallel connection, then cement multichannel selected is put in storage separately or is mixed rear warehouse-in, can obtain the finished cement of different-grain diameter distribution.
Description
Technical field
The present invention relates to the cement outer circulation Vertical Mill preparation system of a kind of grain size adjustable distribution, the cement products of broad particle distribution can be obtained, also can obtain the cement products of different-grain diameter distribution range.
Background technology
In cement grinding field, tuber grinder due to capacity usage ratio and mill efficiency low, progressively replaced by efficient milling equipment in energy-conservation grinding.Vertical Mill is a kind of bed of material milling equipment, and mill efficiency is higher.Vertical Mill final grinding system uses in a large number in cement slurry grinding and pulverized coal preparation, also many cases are had in cement grinding, the unfavorable performances such as cement water requiremen prepared by the Vertical Mill final grinding system that fears are entertained that is in the past high, pattern sphericity is low, progressively overthrow by cement work person practice, the cement difference that the cement ground with Vertical Mill final grinding system grinds with ball mill in water requiremen, intensity and concrete adaptability etc. is reducing gradually.
The energy conservation characteristic of Vertical Mill final grinding system by people cognition, compared with the pre-grinding of roll squeezer, combination grinding and half final grinding system and other Ball Mill Systems with pre-grinding, the electricity saving performance of the whole grinding of Vertical Mill is more superior.
The Vertical Mill that current Vertical Mill final grinding system makes mostly is the Vertical Mill carrying powder separating machine, Vertical Mill integrates grinding, selects powder, certain wind speed is controlled in Vertical Mill, fine powder after grinding is taken away upward by wind in Vertical Mill, select finished product through built-in powder separating machine, the coarse particles that wind band is not walked and the coarse particles that powder separating machine is selected return mill and continue grinding.Because Vertical Mill nozzle ring wind speed own is higher, Vertical Mill process air quantity is larger, the Vertical Mill resistance and the air quantity that cause carrying powder separating machine are all larger, make the power consumption of internal-circulation type Vertical Mill final grinding system higher, compared with roll squeezer, the pre-grinding of Vertical Mill or half final grinding system, power savings is not too obvious.
Powder separating machine is placed in outside Vertical Mill, powder after vertical mill grinding promotes feeding powder separating machine by gravity, all rely on the built-in vertical mill system of the powder separating machine of wind-power lifting fine powder more to economize on electricity compared with high-drag, this Vertical Mill not with powder separating machine can be described as outer circulation Vertical Mill.Outer circulation Vertical Mill final grinding system, because the fine powder after grinding is directly walked by powder separating machine choosing, the time that material is treated in outer circulation Vertical Mill is very short, is difficult to occur grinding phenomenon, causes the cement granules particle size distribution selected partially narrow.And the cement size distribution that ball mill grinds is wider, cement performance is superior.
Particle size distribution range is wide, the cement products of superior performance how to utilize outer circulation final grinding system to prepare, and this is the difficult problem that cement outer circulation Vertical Mill final grinding system will solve.
Summary of the invention
The cement outer circulation Vertical Mill preparation system of a kind of grain size adjustable distribution is the invention provides for above problem.
In order to overcome the above problems the cement outer circulation Vertical Mill preparation system that the invention provides the distribution of a kind of grain size adjustable, comprise Vertical Mill, bucket elevator, it is characterized in that: also comprise cement and select powder system, after cement selects powder system to be connected on bucket elevator, cement selects powder system to select powder subsystem to compose in parallel by two covers, be designated as first and select powder system, second selects powder system, first selects powder system by the first V-type powder separating machine, first meticulous powder separating machine, first dust-precipitator, first blower fan is in series successively, second selects powder system by the second V-type powder separating machine, second meticulous powder separating machine, second dust-precipitator, second blower fan is in series successively, after the cement products B that after the first cement products A selecting powder system to select, remaining meal at different levels and second selects powder system to select, remaining meal at different levels returns in Vertical Mill after mixing mutually and carries out circulation grinding.
Vertical Mill, bucket elevator, the first V-type powder separating machine are connected successively, form a material circulating system, Vertical Mill discharge port is connected with bucket elevator opening for feed, and bucket elevator discharge port is connected with the first V-type powder separating machine opening for feed, and the first V-type powder separating machine meal feed opening is connected with Vertical Mill opening for feed; Vertical Mill, bucket elevator, the second V-type powder separating machine are connected successively, form a material circulating system, Vertical Mill discharge port is connected with bucket elevator opening for feed, and bucket elevator discharge port is connected with the second V-type powder separating machine opening for feed, and the second V-type powder separating machine meal feed opening is connected with Vertical Mill opening for feed; Vertical Mill, bucket elevator, the first V-type powder separating machine, the first meticulous powder separating machine are connected successively, form a material circulating system, Vertical Mill discharge port is connected with bucket elevator opening for feed, bucket elevator discharge port is connected with the first V-type powder separating machine opening for feed, first V-type powder separating machine fine powder discharge port is connected with the first meticulous powder separating machine opening for feed, and the meal discharge port of the first meticulous powder separating machine is connected with Vertical Mill opening for feed; Vertical Mill, bucket elevator, the second V-type powder separating machine, the second meticulous powder separating machine are connected successively, form a material circulating system, Vertical Mill discharge port is connected with bucket elevator opening for feed, bucket elevator discharge port is connected with the second V-type powder separating machine opening for feed, second V-type powder separating machine fine powder discharge port is connected with the second meticulous powder separating machine opening for feed, and the meal discharge port of the second meticulous powder separating machine is connected with Vertical Mill opening for feed; First V-type powder separating machine blast inlet communicates with air, first V-type air outlet of powder concentrator is connected with the first meticulous powder separating machine blast inlet, first meticulous air outlet of powder concentrator is connected with the first dust-precipitator blast inlet, and the first dust-precipitator air outlet is connected with the first blower fan, enters air by the first blower fan; Second V-type powder separating machine blast inlet communicates with air, second V-type air outlet of powder concentrator is connected with the second meticulous powder separating machine blast inlet, second meticulous air outlet of powder concentrator is connected with the second dust-precipitator blast inlet, and the second dust-precipitator air outlet is connected with the second blower fan, enters air by the second blower fan.
From the cement raw material feeding Vertical Mill at cement ingredient station, cement raw material grinds to form after pulverulent material through Vertical Mill and feeds bucket elevator, after being promoted by bucket elevator feeding cement select powder system each select powder subsystem; First selects the first V-type powder separating machine of powder system to roughly select pulverulent material, meal returns Vertical Mill and carries out circulation grinding, fine powder feeds the first meticulous powder separating machine to carry out selecting powder, the more fine powder body that first meticulous powder separating machine is selected is collected as finished cement A through dust-precipitator, and slightly meal returns Vertical Mill and carries out circulation grinding; Second selects the second V-type powder separating machine of powder system to roughly select pulverulent material, meal returns Vertical Mill and carries out circulation grinding, fine powder feeds the second meticulous powder separating machine to carry out selecting powder, the more fine powder body that second meticulous powder separating machine is selected is collected as finished cement B through dust-precipitator, and slightly meal returns Vertical Mill and carries out circulation grinding.By design, regulate the first meticulous powder separating machine and the second meticulous powder separating machine, select finished cement A and the finished cement B of different-grain diameter distribution range, two-way finished cement enters cement silo after entering separately cement silo or mixing, obtains the finished cement of different-grain diameter distribution range.
As a modification of the present invention, the cement outer circulation Vertical Mill preparation system of described a kind of grain size adjustable distribution, cement after bucket elevator selects powder system to have the above son of 2 cover to select powder system to compose in parallel, powder subsystem is selected to be divided into first to select powder system, second to select powder system, the 3rd to select powder system etc., by each design and the adjustment of selecting powder subsystem, obtain the more finished cement of particle size distribution, these finished cements can be combined into the mixed cement of different-grain diameter distribution range.
Improving as another kind of the present invention, the finished cement B blending ratio that the finished cement A collected by regulating the first dust-precipitator and the second dust-precipitator are collected, obtaining the mixed cement of different-grain diameter distribution range.
Improve as another kind of the present invention, the cement outer circulation Vertical Mill preparation system of described a kind of grain size adjustable distribution, two-way is divided by the material after bucket elevator, the first via directly returns Vertical Mill, bucket elevator, Vertical Mill forms a little material circulating system, each cement in parallel after second tunnel enters bucket elevator selects powder subsystem, first via material ratio control is less, account for the 0-30% of total amount, because first via material powder is not through selecting powder, the fine powder of cement granularity is reached containing some, material so is a little returned Vertical Mill and carries out circulation grinding, be conducive to tamping vertical abrasive bed, certain effect is had to the vibration and the steady running of increase Vertical Mill that reduce Vertical Mill, this part material contains fine powder (finished product), meal, bulk, circulate grinding in Vertical Mill, contribute to obtaining the wider powder of particle size distribution, select wide size-grade distribution finished cement for follow-up condition is provided, the cement that can obtain preparing with ball mill possesses the finished cement of close particle size distribution scope.
Beneficial effect:
1, retain cement outer circulation Vertical Mill final grinding system, give full play to the advantage of the efficient grinding of Vertical Mill, make the grinding pow consumption of cement preparation system lower.
2, respectively selecting powder parameter of any subsystem by regulating, the cement products of different-grain diameter distribution can be obtained, cement particle size distribution range can narrow can be wide, with satisfied different client and cement performance needs.
3, when wherein a set of select powder system to break down time, this cement preparation system can continue produce cement.
4, the wider finished cement of size-grade distribution can be obtained relative to common cement vertical mill system, to obtain better cement performance.
Accompanying drawing explanation
Fig. 1 is process flow sheet of the present invention.
Fig. 2 is another kind of process flow sheet of the present invention.
Fig. 3 is another kind of process flow sheet of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
As shown in Figures 1 to 3, a kind of cement outer circulation Vertical Mill preparation system of grain size adjustable distribution, comprise Vertical Mill 1, bucket elevator 2, also comprise cement and select powder system, after cement selects powder system to be connected on bucket elevator 2, cement selects powder system to comprise, and two covers compose in parallel selects powder subsystem, be first and select powder system 3, second selects powder system 4, first selects powder system 3 by the first V-type powder separating machine 3-1, first meticulous powder separating machine 3-2, first dust-precipitator 3-3, first blower fan 3-4 is in series successively, second selects powder system 4 by the second V-type powder separating machine 4-1, second meticulous powder separating machine 4-2, second dust-precipitator 4-3, second blower fan 4-4 is in series successively, first select powder system 3 to select cement products A after remaining meal at different levels and second select powder system 4 to select cement products B after remaining meal at different levels mix mutually after return Vertical Mill 1 li and carry out circulation grinding.
Vertical Mill 1, bucket elevator 2, first V-type powder separating machine 3-1 are connected successively, form a material circulating system, Vertical Mill 1 discharge port is connected with bucket elevator 2 opening for feed, bucket elevator 2 discharge port is connected with the first V-type powder separating machine 3-1 opening for feed, and the first V-type powder separating machine 3-1 meal feed opening is connected with Vertical Mill 1 opening for feed; Vertical Mill 1, bucket elevator 2, second V-type powder separating machine 4-1 are connected successively, form a material circulating system, Vertical Mill 1 discharge port is connected with bucket elevator 2 opening for feed, bucket elevator 2 discharge port is connected with the second V-type powder separating machine 4-1 opening for feed, and the second V-type powder separating machine 4-1 meal feed opening is connected with Vertical Mill 1 opening for feed; Vertical Mill 1, bucket elevator 2, first V-type powder separating machine 3-1, the first meticulous powder separating machine 3-2 are connected successively, form a material circulating system, Vertical Mill 1 discharge port is connected with bucket elevator 2 opening for feed, bucket elevator 2 discharge port is connected with the first V-type powder separating machine 3-1 opening for feed, first V-type powder separating machine 3-1 fine powder discharge port is connected with the first meticulous powder separating machine 3-2 opening for feed, and the first meticulous powder separating machine 3-2 meal discharge port is connected with Vertical Mill 1 opening for feed; Vertical Mill 1, bucket elevator 2, second V-type powder separating machine 4-1, the second meticulous powder separating machine 4-2 are connected successively, form a material circulating system, Vertical Mill 1 discharge port is connected with bucket elevator 2 opening for feed, bucket elevator 2 discharge port is connected with the second V-type powder separating machine 4-1 opening for feed, second V-type powder separating machine 4-1 fine powder discharge port is connected with the second meticulous powder separating machine 4-2 opening for feed, and the meal discharge port of the second meticulous powder separating machine 4-2 is connected with Vertical Mill 1 opening for feed; First V-type powder separating machine 3-1 blast inlet communicates with air, first V-type powder separating machine 3-1 air outlet is connected with the first meticulous powder separating machine 3-2 blast inlet, first meticulous powder separating machine 3-2 air outlet is connected with the first dust-precipitator 3-3 blast inlet, first dust-precipitator 3-3 air outlet is connected with the first blower fan 3-4, enters air by the first blower fan 3-4; Second V-type powder separating machine 4-1 blast inlet communicates with air, second V-type powder separating machine 4-1 air outlet is connected with the second meticulous powder separating machine 4-2 blast inlet, second meticulous powder separating machine 4-2 air outlet is connected with the second dust-precipitator 4-3 blast inlet, second dust-precipitator 4-3 air outlet is connected with the second blower fan 4-4, enters air by the second blower fan 4-4.
From the cement raw material feeding Vertical Mill 1 at cement ingredient station, cement raw material grinds to form after pulverulent material through Vertical Mill 1 and feeds bucket elevator 2, and each promoting that rear feeding cement selects powder system by bucket elevator 2 selects powder subsystem; First selects the first V-type powder separating machine 3-1 of powder system 3 to roughly select pulverulent material, meal returns Vertical Mill 1 and carries out circulation grinding, fine powder feeds the first meticulous powder separating machine 3-2 to carry out selecting powder, the more fine powder body that first meticulous powder separating machine 3-2 selects is collected as finished cement A through the first dust-precipitator 3-3, and slightly meal returns Vertical Mill 1 and carries out circulation grinding; Second selects the second V-type powder separating machine 4-1 of powder system 4 to roughly select pulverulent material, meal returns Vertical Mill 1 and carries out circulation grinding, fine powder feeds the second meticulous powder separating machine 4-2 to carry out selecting powder, the more fine powder body that second meticulous powder separating machine 4-2 selects is collected as finished cement B through the second dust-precipitator 4-3, and slightly meal returns Vertical Mill 1 and carries out circulation grinding; By design, regulate the first meticulous powder separating machine 3-2 and the second meticulous powder separating machine 4-2, select finished cement A and the finished cement B of different-grain diameter distribution range, two-way finished cement enters cement silo after entering separately cement silo or mixing, obtains the finished cement of different-grain diameter distribution range.
Improvement embodiment of the present invention, cement after bucket elevator 2 selects powder system to have more than 2 covers to select powder subsystem to compose in parallel, powder subsystem is selected to be divided into first to select powder system, second to select powder system, the 3rd to select powder system etc., by each design and the adjustment of selecting powder subsystem, obtain the more finished cement of particle size distribution, these finished cements can be combined into the mixed cement of different-grain diameter distribution range.
The another kind of embodiment that the present invention improves, as Fig. 2, the finished cement A that first dust-precipitator 3-3 collects and the finished cement B that collects of the second dust-precipitator 4-3 mixes with different ratios and obtains the different mixed cement of particle size distribution, can realize two kinds of cement with arbitrarily than mixing.
Another kind of the present invention improves embodiment, as Fig. 3, material after bucket elevator 2 divides two-way, the first via directly returns Vertical Mill 1, after second tunnel enters bucket elevator 2, each cement in parallel selects powder subsystem, first via inventory controls 0 ~ 30%, realize powder that small portion contains finished cement granularity fine powder to return Vertical Mill 1 and carry out circulation grinding, contribute to the steady running of Vertical Mill, what can realize again part fine powder crosses grinding, contribute to the powder that vertical mill makes wide size-grade distribution, select wide size-grade distribution finished cement for follow-up powder separating machine and condition is provided.
The foregoing is only the preferred embodiments of the present invention, be not restricted to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within right of the present invention.
Claims (5)
1. the cement outer circulation Vertical Mill preparation system of a grain size adjustable distribution, comprise Vertical Mill (1), bucket elevator (2), it is characterized in that: also comprise cement and select powder system, after cement selects powder system to be connected on bucket elevator (2), cement selects powder system to select powder subsystem to compose in parallel by two covers, is first and selects powder system (3), second to select powder system (4);
First selects powder system (3) to be in series successively by the first V-type powder separating machine (3-1), the first meticulous powder separating machine (3-2), the first dust-precipitator (3-3), the first blower fan (3-4);
Second selects powder system (4) to be in series successively by the second V-type powder separating machine (4-1), the second meticulous powder separating machine (4-2), the second dust-precipitator (4-3), the second blower fan (4-4);
First select powder system (3) to select cement products A after remaining meal at different levels and second select powder system (4) to select cement products B after remaining meal at different levels mix mutually after return that Vertical Mill (1) is inner carries out circulation grinding;
Vertical Mill (1), bucket elevator (2), the first V-type powder separating machine (3-1) are connected successively, form a material circulating system, Vertical Mill (1) discharge port is connected with bucket elevator (2) opening for feed, bucket elevator (2) discharge port is connected with the first V-type powder separating machine (3-1) opening for feed, and the first V-type powder separating machine (3-1) meal feed opening is connected with Vertical Mill (1) opening for feed;
Vertical Mill (1), bucket elevator (2), the second V-type powder separating machine (4-1) are connected successively, form a material circulating system, Vertical Mill (1) discharge port is connected with bucket elevator (2) opening for feed, bucket elevator (2) discharge port is connected with the second V-type powder separating machine (4-1) opening for feed, and the second V-type powder separating machine (4-1) meal feed opening is connected with Vertical Mill (1) opening for feed;
Vertical Mill (1), bucket elevator (2), the first V-type powder separating machine (3-1), the first meticulous powder separating machine (3-2) are connected successively, form a material circulating system, Vertical Mill (1) discharge port is connected with bucket elevator (2) opening for feed, bucket elevator (2) discharge port is connected with the first V-type powder separating machine (3-1) opening for feed, first V-type powder separating machine (3-1) fine powder discharge port is connected with the first meticulous powder separating machine (3-2) opening for feed, and the first meticulous powder separating machine (3-2) meal discharge port is connected with Vertical Mill (1) opening for feed;
Vertical Mill (1), bucket elevator (2), the second V-type powder separating machine (4-1), the second meticulous powder separating machine (4-2) are connected successively, form a material circulating system, Vertical Mill (1) discharge port is connected with bucket elevator (2) opening for feed, bucket elevator (2) discharge port is connected with the second V-type powder separating machine (4-1) opening for feed, second V-type powder separating machine (4-1) fine powder discharge port is connected with the second meticulous powder separating machine (4-2) opening for feed, and the meal discharge port of the second meticulous powder separating machine (4-2) is connected with Vertical Mill (1) opening for feed;
First V-type powder separating machine (3-1) blast inlet communicates with air, first V-type powder separating machine (3-1) air outlet is connected with the first meticulous powder separating machine (3-2) blast inlet, first meticulous powder separating machine (3-2) air outlet is connected with the first dust-precipitator (3-3) blast inlet, first dust-precipitator (3-3) air outlet is connected with the first blower fan (3-4), enters air by the first blower fan (3-4); Second V-type powder separating machine (4-1) blast inlet communicates with air, second V-type powder separating machine (4-1) air outlet is connected with the second meticulous powder separating machine (4-2) blast inlet, second meticulous powder separating machine (4-2) air outlet is connected with the second dust-precipitator (4-3) blast inlet, second dust-precipitator (4-3) air outlet is connected with the second blower fan (4-4), enters air by the second blower fan (4-4);
From cement raw material feeding Vertical Mill (1) at cement ingredient station, cement raw material feeds bucket elevator (2) after Vertical Mill (1) grinds to form pulverulent material, after being promoted by bucket elevator (2) feeding cement select powder system each select powder subsystem; First selects the first V-type powder separating machine (3-1) of powder system (3) to roughly select pulverulent material, meal returns Vertical Mill (1) and carries out circulation grinding, fine powder feeds the first meticulous powder separating machine (3-2) to carry out selecting powder, the more fine powder body that first meticulous powder separating machine (3-2) is selected is collected as finished cement A through the first dust-precipitator (3-3), and slightly meal returns Vertical Mill (1) and carries out circulation grinding; Second selects the second V-type powder separating machine (4-1) of powder system (4) to roughly select pulverulent material, meal returns Vertical Mill (1) and carries out circulation grinding, fine powder feeds the second meticulous powder separating machine (4-2) to carry out selecting powder, the more fine powder body that second meticulous powder separating machine (4-2) is selected is collected as finished cement B through the second dust-precipitator (4-3), and slightly meal returns Vertical Mill (1) and carries out circulation grinding; The finished cement A that first meticulous powder separating machine (3-2) and the second meticulous powder separating machine (4-2) are selected and finished cement B, two-way finished cement enters cement silo after entering separately cement silo or mixing.
2. the cement outer circulation Vertical Mill preparation system of a kind of grain size adjustable distribution according to claim 1, is characterized in that: the described first meticulous powder separating machine (3-2) selects powder particle size distribution range different with the second meticulous powder separating machine (4-2).
3. the cement outer circulation Vertical Mill preparation system of a kind of grain size adjustable distribution according to claim 1, is characterized in that: the finished cement B that the finished cement A that collects of the first dust-precipitator (3-3) and the second dust-precipitator (4-3) are collected mixes with different ratios and obtains the different mixed cement of particle size distribution.
4. the cement outer circulation Vertical Mill preparation system of a kind of grain size adjustable distribution according to claim 1, it is characterized in that: the material after bucket elevator (2) divides two-way, the first via directly returns Vertical Mill (1), bucket elevator (2), Vertical Mill (1) form a little material circulating system, and each cement that the second tunnel enters bucket elevator (2) in parallel afterwards selects powder subsystem.
5. the cement outer circulation Vertical Mill preparation system of a kind of grain size adjustable distribution according to claim 1, is characterized in that:
Cement after bucket elevator (2) selects powder system to have N cover to select powder subsystem to compose in parallel, to replace cement to select powder system to select powder subsystem to compose in parallel by two covers, and wherein N > 2.
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| CN106076507A (en) * | 2016-06-24 | 2016-11-09 | 安徽海螺建材设计研究院 | The powder concentrator structure in parallel of cement grinding system |
| DE102017117985A1 (en) * | 2017-08-08 | 2019-02-14 | Thyssenkrupp Ag | Process and plant for the production of cement |
| CN110227600A (en) * | 2019-07-10 | 2019-09-13 | 陆有明 | A kind of cement grinding systems for selecting powder to realize that partial size is prepared using mill tail pair |
| CN112816371B (en) * | 2021-04-22 | 2021-07-09 | 南京兴盛德水泥有限公司 | System and method for measuring abrasive particle size of cement raw powder of ball mill |
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| DE102012020160A1 (en) * | 2012-10-13 | 2014-04-17 | Khd Humboldt Wedag Gmbh | Process for the production of cement |
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| JPH0777975B2 (en) * | 1990-12-29 | 1995-08-23 | 川崎重工業株式会社 | Crushing equipment such as cement clinker |
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| CN202337732U (en) * | 2011-11-29 | 2012-07-18 | 酒钢(集团)宏达建材有限责任公司 | System for producing cement by separated grinding |
| DE102012020160A1 (en) * | 2012-10-13 | 2014-04-17 | Khd Humboldt Wedag Gmbh | Process for the production of cement |
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