CN201768603U - Semi-finished pre-grinding vertical mill and ball mill combined grinding device - Google Patents
Semi-finished pre-grinding vertical mill and ball mill combined grinding device Download PDFInfo
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- CN201768603U CN201768603U CN2010202160375U CN201020216037U CN201768603U CN 201768603 U CN201768603 U CN 201768603U CN 2010202160375 U CN2010202160375 U CN 2010202160375U CN 201020216037 U CN201020216037 U CN 201020216037U CN 201768603 U CN201768603 U CN 201768603U
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Abstract
The utility model belongs to the technical field of cement grinding, and relates to a semi-finished pre-grinding vertical mill and ball mill combined grinding device, which comprises a semi-finished pre-grinding vertical mill and a ball mill. A feeding end of the semi-finished pre-grinding vertical mill is connected to a discharge end of a proportioning belt scale, an air outlet is connected with a dust collector, a discharge opening of the dust collector is connected with a finished product conveyer, a discharge opening of the semi-finished pre-grinding vertical mill is connected with a hoister through a vertical mill discharge belt, a discharge opening of the hoister is connected with a feeding opening of the ball mill, an air outlet of the ball mill is connected with the dust collector, a discharge opening of the dust collector is connected with the finished product conveyer, a discharge opening of the ball mill is connected with a powder concentrator through the hoister, a finished product fine powder discharge opening of the powder concentrator is connected with a third finished product conveyer, and a coarse powder discharge opening of the powder concentrator is connected with the feeding opening of the ball mill through a return conveyor. The semi-finished pre-grinding vertical mill and ball mill combined grinding device integrates the advantages of high yield and energy conversation of the vertical ball and the advantages of cement grading of the ball mill, and is lower in investment and electric consumption, more reasonable in cement particle grading and more convenient in maintenance and repair.
Description
Technical field
The utility model belongs to the cement grinding technical field, a kind of specifically semi-finished pre-grinding vertical and ball milling combination grinding device.
Background technology
Tradition cement grinding ball mill grinding, the cement granules pattern is good, the concrete good operation performance, the building good endurance, but the ball mill grinding adopts the steel ball fragmentation, and mill efficiency is low, the power consumption height.
At present, more advanced cement grinding process is that roll squeezer adds the ball mill combination grinding device, two kinds of forms are specifically arranged: a kind of is that roll squeezer is made pre-grinding: adopt roll squeezer to add the scattering and grading machine, back road mill adopts open-circuit grinding, can improve mill output 40%～50%, this device enters road, back mill and causes the road, back to grind grinding easily, road, influence back abrasive dust mill power consumption and grog utilization rate because the material that roll squeezer comes out has the fine powder of a great deal of; Another kind is that roll squeezer is made half whole grinding device: adopt roll squeezer to add the V-type powder concentrator, realize half whole grinding, dispose according to different process, can improve mill output 50%～80%, but because the material fine powder content height that the V-type powder concentrator comes out, back road mill must be gone up high-efficient powder concentrator, form two closed-circuit systems, this device is too complicated, and construction investment is very big, and preceding road circulating load is very big, power consumption is very big, the main air blower serious wear must be changed, in addition in 3 months, the common fault of roll squeezer is can not change after the roll wear, can only built-up welding safeguard, maintain extremely difficultly, have a strong impact on system's running rate.
At present, domestic Vertical Mill mainly is used on the new type dry kiln raw grinding, Tianjin Design Inst. of Cement Industry and Chengdu cement industry design and research institute have begun the whole grinding test of Vertical Mill, but because the problem of Vertical Mill cement granules appearance, and thing followed concrete operational problem and endurance issues, present stage is difficult to extensive popularization.
Summary of the invention
Technical problem to be solved in the utility model is: at the shortcoming of above prior art existence, a kind of semi-finished pre-grinding vertical and ball milling combination grinding device are proposed, the high yield and saving energy of Vertical Mill and the cement grating advantage of ball mill are combined, invest low, power consumption is lower, and the cement granules grating is more reasonable.
The technical scheme that the utility model solves above technical problem is:
Semi-finished pre-grinding vertical and ball milling combination grinding device, comprise semi-finished pre-grinding vertical machine and ball mill, the semi-finished pre-grinding vertical machine comprises powder concentrator, feeding mouth, mill, top scraper plate, reductor, main motor, air outlet, grinding roller, rocking arm, bottom scraper plate and semi-finished product discharging opening, and the feed end of semi-finished pre-grinding vertical machine connects the blanking end that proportioning belt claims by belt feeder; The gas outlet of semi-finished pre-grinding vertical machine connects first deduster, and the discharging opening of first deduster connects first finished product conveyer, and first deduster links to each other with first dedusting fan; The discharging opening of semi-finished pre-grinding vertical machine connects first elevator by the Vertical Mill outfeed belt, the receive charging aperture of grinding machine of the discharging opening of first elevator; The gas outlet of ball mill connects second deduster, and the discharging opening of second deduster connects second finished product conveyer, and second deduster links to each other with second dedusting fan; The discharging opening of ball mill connects powder concentrator by second elevator, and the finished product fine powder discharging opening of powder concentrator connects the 3rd finished product conveyer, and the meal discharging opening of powder concentrator is by the receive charging aperture of grinding machine of feed back conveyer.
Like this, grinding material is delivered to the semi-finished pre-grinding vertical machine by belt, grinding in the semi-finished pre-grinding vertical machine, the light matter material rises with air-flow, than heavy material whereabouts semi-finished pre-grinding vertical motor spindle, the rising dust-contained airflow is fine graded by dynamic powder concentrator, what meet the finished product requirement is transported to the deduster collection with air-flow, do not meet the synthetic closely knit material bed of the thin returning charge of finished product requirement and charging and continue to mill, collect discharging opening, enter ball mill, the material in small, broken bits that the semi-finished pre-grinding vertical machine comes out enters ball mill and carries out fine-grinding, select powder by elevator to powder concentrator, meal is got back to ball mill bistrique grinding again, and the finished product fine powder is directly put in storage.
This shows, the utility model science semi-finished pre-grinding vertical machine and ball mill are combined, material are at first carried out half whole grinding by the semi-finished pre-grinding vertical system, and the closed-circuit ball mill system by the band powder concentrator carries out whole grinding then, thereby make the grinding granule-morphology good, the mill efficiency height.
Technical scheme as the further qualification of the utility model:
The outer rim of mill is provided with the barrier circle, and the barrier circle is that a cross section is L shaped annulus, opens the backgauge hole at inner ring, opens fixing hole on the bottom sides, and the barrier circle is fixed by bolts to the edge on mill top by the fixing hole on the bottom sides.The aperture in backgauge hole is 3mm.Material is all extracted out by wind-force in traditional vertical mill, wind-force consumption is big, the blower fan wearing and tearing are big, and after the utility model is provided with the barrier circle, through the material after rolling, constantly move to the mill outer rim down ordering about continuously of centrifugal force, tiny qualified material is outwards dished out from the barrier circle, the coarse granule material is returned mill by barrier circle obstruction to be continued to roll, and guarantees to have only particle diameter to pass through from special barrier circle less than the material of 3mm, can realize many thickness grading once.
That end that belt feeder is connected with the feed end of semi-finished pre-grinding vertical machine is provided with a tramp iron separator, can the iron in the cement grinding material can be removed before semi-finished pre-grinding vertical.
The feed end of semi-finished pre-grinding vertical machine is provided with a lattice wheel, can play the effect of lock wind.
The utility model has the advantages that: the utility model combines the cement grating advantage of the high yield and saving energy of Vertical Mill and ball mill, invests lowlyer, and power consumption is lower, and the cement granules grating is more reasonable, and Maintenance and Repair are very convenient, and economic benefit is very remarkable.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of semi-finished pre-grinding vertical machine.
Fig. 3 is the connection diagram of mill and barrier circle.
Fig. 4 is the structural representation of barrier circle.
The specific embodiment
Embodiment one
Present embodiment is a kind of semi-finished pre-grinding vertical and ball milling combination grinding device, and structure comprises semi-finished pre-grinding vertical machine 5 and ball mill 11 as shown in Figure 1.The structure of semi-finished pre-grinding vertical machine 5 as shown in Figure 2, comprise powder concentrator 20, feeding mouth 21, mill 22, top scraper plate 23, reductor 24, main motor 25, air outlet 26, grinding roller 27, rocking arm 28, bottom scraper plate 30 and semi-finished product discharging opening 31, mill 22 is installed on the transmission device of being made up of main motor 25 and braking maneuver 4, and grinding roller 27 is installed on the rocking arm 28.Material enters the semi-finished pre-grinding vertical machine by feeding mouth 21.The outer rim of mill 22 is provided with barrier circle 29, mill is connected as shown in Figure 3 with the barrier circle, and barrier circle 29 is that a cross section is L shaped annulus, opens the backgauge hole at inner ring, open fixing hole on the bottom sides, barrier circle 29 is fixed on the edge on mill 22 tops with bolt 32 by the fixing hole on the bottom sides.The structure of barrier circle 29 as shown in Figure 4, the aperture in backgauge hole 33 is 3mm.Be provided with top material scraping plate 23 on the top of barrier circle 29.Semi-finished pre-grinding vertical machine 5 bottoms are provided with bottom material scraping plate 30 and semi-finished product discharging opening 31, and material enters from feeding mouth 21, and the hot blast of semi-finished pre-grinding vertical machine 5 enters from bottom sides, from the air-out of powder concentrator air outlet.
The feed end of semi-finished pre-grinding vertical machine 5 connects proportioning belt by belt feeder 2 and claims 1 blanking end, that end that belt feeder 2 is connected with the feed end of semi-finished pre-grinding vertical machine 5 is provided with a tramp iron separator 3, and the feed end of semi-finished pre-grinding vertical machine 5 is provided with a lattice wheel 4.The discharging opening that the gas outlet of semi-finished pre-grinding vertical machine 5 connects first deduster, 6, the first dedusters 6 connects first finished product conveyer, 7, the first dedusters 6 and links to each other with first dedusting fan 8.The receive charging aperture of grinding machine 11 of the discharging opening that the discharging opening of semi-finished pre-grinding vertical machine 5 connects first elevator, 10, the first elevators 10 by Vertical Mill outfeed belt 9.The discharging opening that the gas outlet of ball mill 11 connects second deduster, 17, the second dedusters 17 connects second finished product conveyer, 18, the second dedusters 17 and links to each other with second dedusting fan 19.The discharging opening of ball mill 11 connects powder concentrator 13 by second elevator 12, and the finished product fine powder discharging opening of powder concentrator 13 connects the 3rd finished product conveyer 16, and the meal discharging opening of powder concentrator 13 is by the receive charging aperture of grinding machine 11 of feed back conveyer 15.Semi-finished pre-grinding vertical machine 5 goes out the whole grinding of closed-circuit ball mill 11 realizations that the machine fine powder enters the band powder concentrator, the powder concentrator blower fan adopts inner loop mode, after material enters powder concentrator, utilize air to separate, coarse granule returns ball mill 11 bistriques grinding again, qualified material enters the whirlwind tube and collects as finished product usefulness, the ad hoc deduster of ball mill 11 mill inner ventilations, and the fine powder of collection is directly used as finished product.
The utility model after cement grinding materials such as clinker, slag, gypsum process proportioning belt claims batching, is delivered to semi-finished pre-grinding vertical by belt in the specific implementation, process tramp iron separator deironing before semi-finished pre-grinding vertical.Material is taken turns charging by lattice before entering semi-finished pre-grinding vertical, mainly has been the effect of lock wind, and hot blast enters from the semi-finished pre-grinding vertical bottom.
Material is fallen mill central authorities by feeding mouth, and mill is being done at the uniform velocity gyration by main motor, reductor under driving, and mill outwards evenly disperses material, spreads out by action of centrifugal force, makes it form certain thickness material bed.Under the effect of pressure, grinding roller and mill roll material by relative motion.In this process, material is subjected to rolling of a plurality of grinding rollers on the mill simultaneously, and is pulverized under the effect of pressure.Material is all extracted out by wind-force in the tradition vertical mill, and wind-force consumption is big, and the blower fan wearing and tearing are big.Key of the present utility model be in the mill edge designs barrier circle.Special barrier circle will guarantee that through accurate Calculation the bed depth in the semi-finished pre-grinding vertical running is suitable.Through the material after rolling, constantly move ordering about continuously down of centrifugal force to the mill outer rim, tiny qualified material is outwards dished out from the barrier circle, the coarse granule material is returned mill by barrier circle obstruction to be continued to roll, assurance has only particle diameter to pass through from special barrier circle less than the material of 3mm, realizes one time thickness grading.From the bottom supply hot blast of semi-finished pre-grinding vertical, the semi-finished pre-grinding vertical mill is interior to be 30% of traditional Vertical Mill with wind.From the material classification under the effect of ascending air of dishing out of barrier circle, the light matter material rises with air-flow, than heavy material whereabouts semi-finished pre-grinding vertical bottom, realizes the classification of secondary selection by winnowing.The rising dust-contained airflow is fine graded by dynamic powder concentrator three times, meets being transported to deduster with air-flow and collecting of finished product requirement, and the finished product fine powder accounts for material charging total amount 20%, realizes half whole grinding.The semi-finished pre-grinding vertical gas circuit is an open circuit, the deduster exhaust gas evacuation.Not meeting the synthetic closely knit material bed of the thin returning charge of finished product requirement and charging continues to mill.Fall into the material that accounts for charging total amount 80% of semi-finished pre-grinding vertical bottom, collect discharging opening, enter down the road mill by the bottom scraper plate.
The material in small, broken bits that semi-finished pre-grinding vertical comes out enters ball mill and carries out fine-grinding, selects powder by elevator to powder concentrator, and meal is got back to ball mill bistrique grinding again, and the finished product fine powder is directly put in storage.
The utility model can also have other embodiment, and the technical scheme that equal replacement of all employings or equivalent transformation form all drops within the claimed scope of the utility model.
Claims (5)
1. semi-finished pre-grinding vertical and ball milling combination grinding device, comprise semi-finished pre-grinding vertical machine (5) and ball mill (11), described semi-finished pre-grinding vertical machine (5) comprises powder concentrator (20), feeding mouth (21), mill (22), top scraper plate (23), reductor (24), main motor (25), air outlet (26), grinding roller (27), rocking arm (28), bottom scraper plate (30) and semi-finished product discharging opening (31), it is characterized in that: the feed end of described semi-finished pre-grinding vertical machine (5) connects the blanking end that proportioning belt claims (1) by belt feeder (2); The gas outlet of described semi-finished pre-grinding vertical machine (5) connects first deduster (6), and the discharging opening of described first deduster (6) connects first finished product conveyer (7), and described first deduster (6) links to each other with first dedusting fan (8); The discharging opening of described semi-finished pre-grinding vertical machine (5) connects first elevator (10) by Vertical Mill outfeed belt (9), and the discharging opening of described first elevator (10) connects the charging aperture of described ball mill (11); The gas outlet of described ball mill (11) connects second deduster (17), and the discharging opening of described second deduster (17) connects second finished product conveyer (18), and described second deduster (17) links to each other with second dedusting fan (19); The discharging opening of described ball mill (11) connects powder concentrator (13) by second elevator (12), the finished product fine powder discharging opening of described powder concentrator (13) connects the 3rd finished product conveyer (16), and the meal discharging opening of described powder concentrator (13) connects the charging aperture of described ball mill (11) by feed back conveyer (15).
2. semi-finished pre-grinding vertical as claimed in claim 1 and ball milling combination grinding device, it is characterized in that: the outer rim of described mill (22) is provided with barrier circle (29), described barrier circle (29) is that a cross section is L shaped annulus, open backgauge hole (33) at inner ring, open fixing hole on the bottom sides, described barrier circle (29) is fixed on the edge on mill (22) top with bolt (32) by the fixing hole on the bottom sides.
3. semi-finished pre-grinding vertical as claimed in claim 2 and ball milling combination grinding device is characterized in that: the aperture in described backgauge hole (33) is 3mm.
4. semi-finished pre-grinding vertical as claimed in claim 1 and ball milling combination grinding device is characterized in that: described belt feeder (2) is provided with a tramp iron separator (3) with that end that the feed end of described semi-finished pre-grinding vertical machine (5) is connected.
5. semi-finished pre-grinding vertical as claimed in claim 1 and ball milling combination grinding device is characterized in that: the feed end of described semi-finished pre-grinding vertical machine (5) is provided with a lattice wheel (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202160375U CN201768603U (en) | 2010-06-03 | 2010-06-03 | Semi-finished pre-grinding vertical mill and ball mill combined grinding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202160375U CN201768603U (en) | 2010-06-03 | 2010-06-03 | Semi-finished pre-grinding vertical mill and ball mill combined grinding device |
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| Publication Number | Publication Date |
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| CN201768603U true CN201768603U (en) | 2011-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010202160375U Expired - Lifetime CN201768603U (en) | 2010-06-03 | 2010-06-03 | Semi-finished pre-grinding vertical mill and ball mill combined grinding device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101862699A (en) * | 2010-06-03 | 2010-10-20 | 南京旋立重型机械有限公司 | Semi-finished pre-grinding vertical-milling and ball-milling combined grinding device |
| CN103240148A (en) * | 2012-02-13 | 2013-08-14 | 宇部兴产机械株式会社 | Vertical grinder |
| CN105689101A (en) * | 2016-03-15 | 2016-06-22 | 苏州超创节能科技有限公司 | Energy-saving pulverized coal production line system and production technology thereof |
| CN105833974A (en) * | 2016-04-29 | 2016-08-10 | 四川亚东水泥有限公司 | Cement production system based on opened and closed circuit joint control and process of cement production system |
| CN106238188A (en) * | 2016-08-31 | 2016-12-21 | 宜宾市天顺建材集团股份有限公司 | Respective grinding process at times |
| CN108452930A (en) * | 2018-05-30 | 2018-08-28 | 昌群精细工业（宜昌）有限公司 | A kind of milling complete production line |
| CN114007751A (en) * | 2019-07-05 | 2022-02-01 | 川崎重工业株式会社 | Method for operating pulverizing system and method for producing powder |
-
2010
- 2010-06-03 CN CN2010202160375U patent/CN201768603U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101862699A (en) * | 2010-06-03 | 2010-10-20 | 南京旋立重型机械有限公司 | Semi-finished pre-grinding vertical-milling and ball-milling combined grinding device |
| CN103240148A (en) * | 2012-02-13 | 2013-08-14 | 宇部兴产机械株式会社 | Vertical grinder |
| CN105689101A (en) * | 2016-03-15 | 2016-06-22 | 苏州超创节能科技有限公司 | Energy-saving pulverized coal production line system and production technology thereof |
| CN105833974A (en) * | 2016-04-29 | 2016-08-10 | 四川亚东水泥有限公司 | Cement production system based on opened and closed circuit joint control and process of cement production system |
| CN106238188A (en) * | 2016-08-31 | 2016-12-21 | 宜宾市天顺建材集团股份有限公司 | Respective grinding process at times |
| CN108452930A (en) * | 2018-05-30 | 2018-08-28 | 昌群精细工业（宜昌）有限公司 | A kind of milling complete production line |
| CN108452930B (en) * | 2018-05-30 | 2023-09-19 | 昌群精细工业（宜昌）有限公司 | Whole set production line for grinding |
| CN114007751A (en) * | 2019-07-05 | 2022-02-01 | 川崎重工业株式会社 | Method for operating pulverizing system and method for producing powder |
| CN114007751B (en) * | 2019-07-05 | 2023-12-05 | 川崎重工业株式会社 | Method for operating pulverizing system and method for producing powder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110323 Effective date of abandoning: 20120104 |