CN103447119A - Vertical roller mill and grinding method thereof - Google Patents
Vertical roller mill and grinding method thereof Download PDFInfo
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- CN103447119A CN103447119A CN 201310399378 CN201310399378A CN103447119A CN 103447119 A CN103447119 A CN 103447119A CN 201310399378 CN201310399378 CN 201310399378 CN 201310399378 A CN201310399378 A CN 201310399378A CN 103447119 A CN103447119 A CN 103447119A
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- mill
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- roll grinder
- vertical roll
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Abstract
The invention discloses a vertical roller mill and a grinding method of the vertical roller mill. An original vertical mill is large in occupation area, influences air quality due to large capacity of dust generated in a barreling process, is simple in structure, is assisted by needing drying and conveying devices in a grinding process, and is high in production cost and low in efficiency. The vertical roller mill comprises a shell (1), wherein a millstone (2) is arranged in the shell, an air locking feeder (3) and a grinding roller (4) are respectively inserted and arranged at two sides of the shell, the air locking feeder is provided with a feeding hole (5) and a discharging hole (6), the discharging hole is positioned above the millstone, a product outlet (7) is formed in the top of the shell, a powder concentrator (8) is arranged inside the shell and positioned above the millstone, an air ring (9) is formed between the millstone and the shell, the millstone is connected with a speed reducer (10) outside the shell, and the speed reducer is connected with a main motor (11). The vertical roller mill is used in mine development.
Description
technical field:
the present invention relates to a kind of vertical roll grinder and grinding method thereof.
background technology:
the vertical mill basic procedure that existing market is used is whole grinding, but, in order to contend with the pre-grinding of roll squeezer, the pipe milling system needs transformation.And the Dust Capacity that this original vertical mill floor space is large, the barreling process produces is large, affect air quality, this vertical mill simple in structure, grinding process needs the device of drying in addition and transmitting to be assisted, and production cost is high, efficiency is low.
summary of the invention:
the purpose of this invention is to provide a kind of vertical roll grinder and grinding method thereof.
above-mentioned purpose realizes by following technical scheme:
a kind of vertical roll grinder, its composition comprises: housing, mill is installed in described housing, lock feeding device and grinding roller are assigned respectively in described housing both sides, described lock feeding utensil has charging aperture and discharging opening, described discharging opening is positioned at described mill top, and described case top also has products export; Described enclosure interior is positioned at the mill top powder concentrator also is installed, and between described mill and described housing, forms vane, and described mill connects the reductor of hull outside, and described reductor connects main motor.
described vertical roll grinder, the upper surface of described mill also has cannelure.
described vertical roll grinder, the grinding roller that is positioned at described enclosure interior is placed in the cannelure of described mill, and the grinding roller that is positioned at described hull outside also connects oil hydraulic cylinder by curved boom.
described vertical roll grinder, described powder concentrator be positioned at described mill directly over, described mill is fixedly mounted on the output shaft of described reductor.
a kind of grinding method of vertical roll grinder, motor rotates by reductor band movable grinding disc, and material drops on mill central authorities through discharging opening again through the charging aperture of lock feeding device, and hot blast enters in housing from vane simultaneously; Along with the rotation of mill, material moves to the mill edge under centrifugal action, through being subject to grinding roller during cannelure on mill, rolling and pulverizes, and crushing rear material is taken up by the vane high velocity air at the mill edge, and bulky grain is directly fallen on mill grinding again; When in air-flow, material is through the top powder concentrator, under the rotor effect, meal is fallen mill grinding again from the cone bucket, and qualified fine powder trips out mill with air-flow one, by the dust arrester installation be connected with products export, collects and obtains product.
the grinding method of described vertical roll grinder, in housing, contain the moisture material with the thermal current contact process in dried, by regulating hot blast temperature, can meet the requirement of different humidity material, reach required product moisture; By adjusting powder concentrator, can reach the required fineness degree of different product.
beneficial effect:
1. vertical roll grinder of the present invention mainly partly is comprised of powder concentrator, grinding roller, mill, oil hydraulic cylinder, reductor, active machine, housing etc., powder concentrator is a kind of efficient, energy-conservation powder selection device, after grinding roller rolls pulverizing to material, to mixing abrasive dust, screened, by after oarse-grained powder screening, returning on mill and carry out regrind, until meet the requirements.And material is that cooperation through mill and grinding roller completes by grinding, mill is fixed on speed reducer output shaft, that grinding roller rolls the material place, grinding roller is installed on the grinding machine curved boom, under the External Force Acting of oil hydraulic cylinder, be pressed on the mill material, under mill drives, grinding roller rotates thereupon, thereby material is rolled and pulverizes.
the present invention adopts bed of material grinding principle grinding material, and energy consumption is low, and the grinding system power consumption is lower by 20～30% than ball mill, and increases with raw material moisture, and power savings is more remarkable.The abrasive body wearing and tearing are little, and utilization rate is high, there is no directly contact between metal because vertical mill is in service, therefore its abrasive body wearing and tearing are little, the unit product abrasion are generally 5～10 grams/ton, to resultant metal, pollute little.Grinding roller roller shell turnable is used, and is conducive to increase the service life, and reduces production costs.
device of the present invention is to integrate in small, broken bits, oven dry, grinding, select powder, conveying, does not need separately to put oven dry, selects powder, the equipment such as lifting, goes out to grind dusty gas can directly by high concentration bag collector or cottrell, be collected, and compact in design, can outdoorly arrange.
can dry water into the mill in vertical roll grinder of the present invention up to 15% material, applied range, even dry ball milling, also can only dry moisture is the 3-4% material.Constant product quality, grain composition are even; Material is only 2～3 minutes time of staying in vertical mill, in ball mill, wants 15～20 minutes; So vertical mill product chemical composition and fineness can be measured very soon, be proofreaied and correct, and steady quality.
vertical roll grinder environmental protection of the present invention, noise is low, airborne dust is few, clean operation environment, vertical mill at work grinding roller with mill, directly do not contact, there is no that steel ball in ball mill collides with each other, steel ball clashes into liner plate metal strike note, therefore noise is little, than low 20～25 decibels of ball mill.In addition, vertical mill adopts Full-closed system, and system operates under negative pressure, without airborne dust, and clean environment.
the accompanying drawing explanation:
accompanying drawing 1 is cross-sectional view of the present invention.
the specific embodiment:
embodiment 1:
a kind of vertical roll grinder, its composition comprises: housing 1, mill 2 is installed in described housing, lock feeding device 3 and grinding roller 4 are assigned respectively in described housing both sides, described lock feeding utensil has charging aperture 5 and discharging opening 6, described discharging opening is positioned at described mill top, and described case top also has products export 7; Described enclosure interior is positioned at the mill top powder concentrator 8 also is installed, and forms vane 9 between described mill and described housing, and described mill connects the reductor 10 of hull outside, and described reductor connects main motor 11.
embodiment 2:
the described vertical roll grinder of embodiment 1, the upper surface of described mill also has cannelure.
embodiment 3:
the described vertical roll grinder of embodiment 1, the grinding roller that is positioned at described enclosure interior is placed in the cannelure of described mill, and the grinding roller that is positioned at described hull outside also connects oil hydraulic cylinder by curved boom 12.
embodiment 4:
the described vertical roll grinder of embodiment 1 or 2, described powder concentrator be positioned at described mill directly over, described mill is fixedly mounted on the output shaft of described reductor.
embodiment 5:
a kind of grinding method of vertical roll grinder, motor rotates by reductor band movable grinding disc, and material drops on mill central authorities through discharging opening again through the charging aperture of lock feeding device, and hot blast enters in housing from vane simultaneously; Along with the rotation of mill, material moves to the mill edge under centrifugal action, through being subject to grinding roller during cannelure on mill, rolling and pulverizes, and crushing rear material is taken up by the vane high velocity air at the mill edge, and bulky grain is directly fallen on mill grinding again; When in air-flow, material is through the top powder concentrator, under the rotor effect, meal is fallen mill grinding again from the cone bucket, and qualified fine powder trips out mill with air-flow one, by the dust arrester installation be connected with products export, collects and obtains product.
embodiment 6:
the grinding method of embodiment 5 described vertical roll grinders, in housing, contain the moisture material with the thermal current contact process in dried, by regulating hot blast temperature, can meet the requirement of different humidity material, reach required product moisture; By adjusting powder concentrator, can reach the required fineness degree of different product.
finish fineness is the 80-425 order, finished product water content≤1%, and the finished product wind-warm syndrome is 70-95 ℃.
Claims (6)
1. a vertical roll grinder, its composition comprises: housing, it is characterized in that: mill is installed in described housing, lock feeding device and grinding roller are assigned respectively in described housing both sides, described lock feeding utensil has charging aperture and discharging opening, described discharging opening is positioned at described mill top, and described case top also has products export; Described enclosure interior is positioned at the mill top powder concentrator also is installed, and between described mill and described housing, forms vane, and described mill connects the reductor of hull outside, and described reductor connects main motor.
2. vertical roll grinder according to claim 1, it is characterized in that: the upper surface of described mill also has cannelure.
3. vertical roll grinder according to claim 1 and 2, it is characterized in that: the grinding roller that is positioned at described enclosure interior is placed in the cannelure of described mill, and the grinding roller that is positioned at described hull outside also connects oil hydraulic cylinder by curved boom.
4. vertical roll grinder according to claim 1 and 2 is characterized in that: described powder concentrator be positioned at described mill directly over, described mill is fixedly mounted on the output shaft of described reductor.
5. the grinding method of a vertical roll grinder is characterized in that: motor rotates by reductor band movable grinding disc, and material drops on mill central authorities through discharging opening again through the charging aperture of lock feeding device, and hot blast enters in housing from vane simultaneously; Along with the rotation of mill, material moves to the mill edge under centrifugal action, through being subject to grinding roller during cannelure on mill, rolling and pulverizes, and crushing rear material is taken up by the vane high velocity air at the mill edge, and bulky grain is directly fallen on mill grinding again; When in air-flow, material is through the top powder concentrator, under the rotor effect, meal is fallen mill grinding again from the cone bucket, and qualified fine powder trips out mill with air-flow one, by the dust arrester installation be connected with products export, collects and obtains product.
6. the grinding method of vertical roll grinder according to claim 5, it is characterized in that: in housing, contain the moisture material with the thermal current contact process in dried, by regulating hot blast temperature, can meet the requirement of different humidity material, reach required product moisture; By adjusting powder concentrator, can reach the required fineness degree of different product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310399378 CN103447119A (en) | 2013-09-05 | 2013-09-05 | Vertical roller mill and grinding method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310399378 CN103447119A (en) | 2013-09-05 | 2013-09-05 | Vertical roller mill and grinding method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103447119A true CN103447119A (en) | 2013-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310399378 Withdrawn CN103447119A (en) | 2013-09-05 | 2013-09-05 | Vertical roller mill and grinding method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN103447119A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588192A (en) * | 2015-01-23 | 2015-05-06 | 福建省新创化建科技有限公司 | Drying, grinding and powder selecting integrated production equipment |
| CN106000550A (en) * | 2016-07-29 | 2016-10-12 | 南通利元亨机械有限公司 | Grinding system for producing ground calcium carbonate |
| CN109351421A (en) * | 2018-11-17 | 2019-02-19 | 镇江市美鑫塑料粉末有限公司 | A kind of powdery paints vertical pulverizer |
-
2013
- 2013-09-05 CN CN 201310399378 patent/CN103447119A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104588192A (en) * | 2015-01-23 | 2015-05-06 | 福建省新创化建科技有限公司 | Drying, grinding and powder selecting integrated production equipment |
| CN106000550A (en) * | 2016-07-29 | 2016-10-12 | 南通利元亨机械有限公司 | Grinding system for producing ground calcium carbonate |
| CN109351421A (en) * | 2018-11-17 | 2019-02-19 | 镇江市美鑫塑料粉末有限公司 | A kind of powdery paints vertical pulverizer |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20131218 |