CN204865994U - Hierarchical grinding structure that vertical roller ground - Google Patents
Hierarchical grinding structure that vertical roller ground Download PDFInfo
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- CN204865994U CN204865994U CN201520396692.6U CN201520396692U CN204865994U CN 204865994 U CN204865994 U CN 204865994U CN 201520396692 U CN201520396692 U CN 201520396692U CN 204865994 U CN204865994 U CN 204865994U
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Abstract
The utility model discloses a hierarchical grinding structure that vertical roller ground, including confirming milling zone and feed back pipe in the grinding district that vertical roller ground, the import and the feed back mouth of selection powder machine of feed back pipe are connected, the export of feed back pipe with the milling zone is relative. The utility model discloses a milling zone is confirmed in the adoption in the grinding is distinguished, connect the feed back pipe on the feed back mouth of selection powder machine, and the export structure relative with the milling zone of messenger's feed back pipe, the thinner second grade material from selecting whitewashed machine to return that will restrict vertical roller abrasive material layer stable is isolated in the feed bed of material again, the feeding milling zone is concentrated and is ground, can guarantee that the grinding of second grade material has than higher efficiency on the one hand, on the other hand can improve the stability of the new feed bed of material on the mill, the efficiency of the grinding of new feed is improved. To sum up, use the utility model discloses a vertical roller grinds, under the condition of not spraying water in grinding, can improve the stability of operation, improves grinding efficiency, improves product quality, reduces the power consumption.
Description
Technical field
The utility model belongs to grinding technology field, particularly a kind of classification grinding structure of vertical roller grinder.
Background technology
Vertical roller grinder is called for short Vertical Mill, and its grinding principle is bed of material grinding, and namely by mutually extruding the grinding realizing material between particle and particle, grinding process controllability is good, and mill efficiency is high.The grinding structure that vertical roller grinder adopts at present is: new feeding and powder concentrator feed back mix in the middle part of feeding mill by feed bin under gravity, mill rotating band animal material rotates, material under the influence of centrifugal force by the middle part of mill to mill border movement, time below material movement to grinding roller, under the acting in conjunction of collet and grinding roller pressure, grinding roller pressing materials (bed of material), material is by grinding, material after grinding crosses collet under the influence of centrifugal force, leave mill, fall under gravity into vane, brought into the powder concentrator on grinding machine top subsequently by high velocity air upwards in vane, qualified finished product is walked by powder concentrator choosing, underproof bulky grain enters feed bin through the feedback outlet of powder concentrator, return mill after mixing with new feeding and continue grinding, until the finished product that grinding becomes release mesh to require.
Bed of material grinding guarantees that efficient prerequisite is: the bed of material is stablized.Vertical roller grinder grinding unit existing structure is when the material of the bed of material good stabilities such as pulverizing cement raw material, slag, mill efficiency is high, but work as pulverizing cement, especially when grinding height silicon (grog proportioning >=85%) and pure silicon cement, Vertical Mill exposes the problems such as vibration is large, system power consumption is high, main frame electric current is low, its main cause is: when grinding height silicon or pure silicon cement, because mill feed material grindability is deteriorated, in dish material loading, semi-finished granules (45 ~ 80 μm) content increases, the mobility of the bed of material improves, unstability, and the prerequisite of bed of material grinding is lost.When therefore will solve grinding height silicon or pure silicon cement Vertical Mill vibration large, yield poorly, the problem such as power consumption is high, key is the mill efficiency problem solving cement semi-finished product.
The problem such as large for the vibration exposed when vertical roller grinder grinding height silicon or pure silicon cement, power consumption is high, the way generally adopted in the world is: adopt the measure of water spray in mill to alleviate, but water spray has adverse effect to performance indications such as strengths of cement in mill, therefore study not under water spray condition vertical roller grinder grinding height silicon or pure silicon cement technology very necessary.
Traditional vertical roller grinder adopts combined grinding structure, powder concentrator feed back feeds above mill after mixing in feeding bin above mill with new feeding again, new feeding layer on mill can be caused like this before by grinding roller grinding, to be mingled with a large amount of fine powder, the bad stability of the bed of material, and mill efficiency reduces.
Summary of the invention
The utility model provides a kind of classification grinding structure of vertical roller grinder for solving in known technology the technical problem that exists, adopt this structure, under the condition that Vertical Mill is not sprayed water in mill, the stability of operation can be improved, improve mill efficiency, improve product quality, reduce power consumption.
The technical scheme that the utility model is taked for the technical problem existed in solution known technology is: a kind of classification grinding structure of vertical roller grinder, comprise the milling zone and feed back pipe determined in the grinding district of described vertical roller grinder, the described import of feed back pipe is connected with the feedback outlet of powder concentrator, and the outlet of described feed back pipe is relative with described milling zone.
Described vertical roller grinder is provided with at least 2 the taper grinding rollers and a mill that are evenly arranged, and at interior large end outside, the region that described mill is corresponding with the large end of taper grinding roller forms described milling zone to described taper grinding roller small end; The quantity of described feed back pipe is identical with the quantity of described taper grinding roller, and all described feed back pipes are evenly arranged, and the front of each described taper grinding roller arranges a described feed back pipe.
Described vertical roller grinder is provided with at least 2 the taper grinding rollers and 1 mill that are evenly arranged, and at interior large end outside, the stage casing of described taper grinding roller is provided with annular groove to described taper grinding roller small end; The annular projection be engaged with described taper grinding roller stage casing annular groove is formed at the position that described mill is relative with taper grinding roller stage casing annular groove, the fracture area of the new feeding of one-level is formed in the region that described mill is relative with taper grinding roller small end, the region relative with described taper grinding roller stage casing annular groove at mill annular projection forms described milling zone, is formed grind Runout area in the region that described mill is corresponding with the large end of taper grinding roller; The quantity of described feed back pipe is identical with the quantity of described taper grinding roller, and all described feed back pipes are evenly arranged, and the front of each described taper grinding roller arranges a described feed back pipe.
Described vertical roller grinder is provided with at least 2 the grinding rollers and 1 mill that are evenly arranged, above described mill, the auxiliary mill affixed with it is set, described auxiliary mill is provided with at least 2 mixing rolls be evenly arranged, and the region above described auxiliary mill forms described milling zone; The quantity of described feed back pipe is identical with the quantity of described mixing roll, and all described feed back pipes are evenly arranged, and the front of each described mixing roll arranges a described feed back pipe.
Described vertical roller grinder is provided with at least 2 pulverization rollers be evenly arranged, at least 2 mixing rolls be evenly arranged and 1 mill, spacer ring is provided with in the middle part of the grinding district of described mill, the grinding of described mill is distinguished into the fracture area being positioned at inner side and the described milling zone being positioned at outside by described spacer ring, all described pulverization rollers are all arranged in described fracture area, and all described mixing rolls are all arranged in described milling zone; The quantity of described feed back pipe is identical with the quantity of described mixing roll, and all described feed back pipes are evenly arranged, and the front of each described mixing roll arranges a described feed back pipe.
All described grinding rollers are provided with a set of compression system I, and all described mixing rolls are provided with a set of compression system II.
All described pulverization rollers are provided with a set of compression system III, and all described mixing rolls are provided with a set of compression system IV.
At 30 ° ~ 45 °, the front place of each described taper grinding roller, a described feed back pipe is set.
In the front of each described mixing roll, 30 ° ~ 45 ° places arrange a described feed back pipe.
Pyramidal structure is adopted to be connected with grinding district in the middle part of described mill.
The advantage that the utility model has with good effect is: in grinding district, determining milling zone by adopting, on the feedback outlet of powder concentrator, being connected feed back pipe, and the structure making the outlet of feed back pipe relative with milling zone, stable for the restriction vertical roller grinder bed of material thinner two stage materials returned from powder concentrator are separated from the new feeding bed of material, grinding is concentrated at milling zone, can guarantee that the grinding of two stage materials has higher efficiency on the one hand, the stability of the new feeding bed of material on mill can be improved on the other hand, improve the mill efficiency of new feeding.In sum, apply vertical roller grinder of the present utility model, under the condition of not spraying water in mill, the stability of operation can be improved, improve mill efficiency, improve product quality, reduce power consumption.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment 2;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the structural representation of the utility model embodiment 3;
Fig. 4 is the top view of Fig. 3;
Fig. 5 is the structural representation of the utility model embodiment 4;
Fig. 6 is the top view of Fig. 5.
Detailed description of the invention
For summary of the invention of the present utility model, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
A classification grinding structure for vertical roller grinder, comprise the milling zone and feed back pipe determined in the grinding district of described vertical roller grinder, the described import of feed back pipe is connected with the feedback outlet of powder concentrator, and the outlet of described feed back pipe is relative with described milling zone.Adopt feed back pipe to collect two stage materials returned by powder concentrator, new to two stage materials and one-level feeding is separated, and by the middle part of new for described one-level feeding feeding mill, described two stage materials are fed described milling zone.
Core concept of the present utility model is: separation principle, thinner two stage materials returned from powder concentrator being about to the restriction vertical roller grinder bed of material stable separate concentrated grinding from the one-level new feeding bed of material, it is that two stage materials are thinner that the object done like this mainly contains two: one, application specific architecture can be adopted to grind, to guarantee higher efficiency, two is after being separated from the new feeding bed of material of one-level by two stage materials, the stability of the new feeding bed of material of mill upper level improves, and mill efficiency also can be improved.In the utility model, two stage materials are realize by the feed back pipe be connected with powder concentrator by the process separated in the new feeding bed of material of one-level.
In the grinding region of vertical roller grinder, determining that the method for milling zone can have multiple, both can realize by improving existing grinding roller and grinding disk structure, also can carry out clear and definite on existing grinding roller and grinding disk, grinding subsystem can also be set up.But the latter can make complex system, do not advise adopting.Introduce 4 specific embodiments of the present utility model below.
Embodiment 1:
Keep the existing mill of vertical roller grinder and grinding roll structure and invariant position, described vertical roller grinder adopts at least 2 taper grinding rollers being evenly arranged and a mill to carry out grinding, at interior large end outside, the region that described mill is corresponding with the large end of taper grinding roller forms described milling zone to the small end of described taper grinding roller; The quantity of described feed back pipe is identical with the quantity of described taper grinding roller, and all described feed back pipes are evenly arranged, and the front of each described taper grinding roller arranges 1 described feed back pipe.
In this case, the specific works process of above-mentioned classification grinding structure is:
The grinding method of the new feeding of one-level adopts prior art, feed in the middle part of mill by feed bin above mill, mill rotating band Moving plate material loading rotates, material under the influence of centrifugal force by the middle part of mill to mill border movement, the region corresponding with grinding roller small end at mill is pulverized, the new feeding of pulverized one-level continues the region-milling zone corresponding with the large end of grinding roller to mill border movement to mill, with the secondary mixing of materials fed from feed back pipe grind laggard enter powder concentrator.
1 described feed back pipe is set in the front of each described taper grinding roller, multiple spot feeding can be realized and concentrate grinding.Above-mentioned feed back pipe 4 is preferably arranged in 30 ° ~ 45 °, the front place of taper grinding roller, makes described two stage materials by feed back pipe 4 30 ° ~ 45 ° feedings from the front of described grinding roller, can shorten the idle stroke of two stage materials.In this enforcement, feed back pipe 4 is arranged in 30 °, the front place of taper grinding roller.
Embodiment 2:
Refer to Fig. 1 ~ Fig. 2, the vertical roller existing mill of mill and at least 2 the taper grinding roll structures be evenly arranged improve: one) carry out structure improvement to taper grinding roller: arrange annular groove in the stage casing of existing taper grinding roller, the arrangement of taper grinding roller is constant, be still small end interior, large end is outside; Two) structure of mill is improved: be formed with the annular projection be engaged with described taper grinding roller stage casing annular groove 12 at the position that mill is relative with taper grinding roller stage casing annular groove 12, the fracture area 23 of the new feeding of one-level is formed in the region that described mill is relative with taper grinding roller small end 13, the region relative with described taper grinding roller stage casing annular groove 12 at mill annular projection forms described milling zone 22, is formed grind Runout area 21 in the region that described mill is corresponding with the large end of taper grinding roller 11; The quantity of described feed back pipe 4 is identical with the quantity of described taper grinding roller, and all described feed back pipes 4 are evenly arranged, and the front of each described taper grinding roller arranges a described feed back pipe 4.
In the present embodiment, grinding roller and mill are equipped with clear and definite technical grading structure.Grinding roller is divided into the grinding roller small end 13 mainly bearing crushing function, the grinding roller stage casing annular groove mainly bearing grinding function in the width direction and mainly bears the large end 11 of grinding roller of grinding and particle correction of the flank shape function.Mill is corresponding with grinding roller is also divided into three functional areas, forms tooth form occlusion structure as shown in Figure 1, increases resistance and the milling area of bed of material flowing.
In this case, the specific works process of above-mentioned classification grinding structure is:
Refer to Fig. 1, the new feeding of one-level feeds in the middle part of mill by feed bin above mill 3, mill rotating band Moving plate material loading rotates, lump material under the influence of centrifugal force by the middle part of mill to mill border movement, in time moving to grinding roller small end 13 place, the block bed of material is because fine powder amount is few, the bed of material is stablized, and crushing efficiency is high; Two stage materials returned by powder concentrator are no longer with the new feeding mixing of one-level, but collected by independently feed back pipe 4, in grinding roller front feeding milling zone 22, in milling zone 22, two stage materials returned by powder concentrator and the new feeding mixed grinding of the one-level be broken, because process bands is trench structure herein, bed of material restricted in flow, two stage materials obtain concentrating grinding, and grinding efficiency is high; Under the influence of centrifugal force, the material through grinding continues to move, in this region to grinding Runout area 21, the trench structure of the bed of material also therefore region process bands, restricted in flow, obtains high-efficient grinding and correction of the flank shape, finally under centrifugal action, cross collet 5, leave mill and complete grinding process.Then enter powder concentrator to carry out selecting powder.
The classification grinding structure of above-mentioned vertical roller grinder forms primarily of three kinds of functional parts: the feed back pipe 1) returning material for collecting powder concentrator; 2) process bands grading grinding roller; 3) process bands classification mill.In above-mentioned three kinds of functional parts, feed back pipe 4 is Core Feature elements, also be main innovate point of the present utility model, what feed back pipe 4 can not only determine that bed of material classification grinding realizes whether, and may can derive multiple grinding roller and the mill structural variant that can realize classification grinding function.
The concentrated grinding of the present embodiment energy effective implemention secondary fines, significantly improves mill efficiency, especially the mill efficiency of fine powder (particle diameter 80 μm), theoretical calculation model technological parameter and the results are shown in Table 1.
Table 1 combined grinding technic index theoretical value and fraction grinding process Index Theory value
The grinding district of vertical roller grinder has been carried out function division clearly by the present embodiment, adopt feed back pipe by powder concentrator feed back feeding milling zone, in conjunction with the principle of bed of material grinding, from the angle of restriction bed of material flowing, trench structure design is carried out to different functional bands, with the stable bed of material, improve mill efficiency, especially make the mill efficiency of secondary fine powder be improved significantly, refer to table 1.The present embodiment compared with the existing technology, is conducive to improving the stability that vertical roller grinder runs, and increase yield, reduces system power consumption, improves product quality.
The front of each described taper grinding roller arranges 1 described feed back pipe 4, can realize multiple spot feeding and concentrate grinding.Above-mentioned feed back pipe 4 is preferably arranged in 30 ° ~ 45 °, the front place of taper grinding roller, makes described two stage materials by feed back pipe 4 30 ° ~ 45 ° feedings from the front of described grinding roller, can shorten the idle stroke of two stage materials.In this enforcement, feed back pipe 4 is arranged in 30 °, the front place of taper grinding roller, and two stage materials feed described milling zone 22 by 30 °, the front of each grinding roller, realizes multiple spot feeding and concentrates grinding.Adopt pyramidal structure to be connected with grinding district in the middle part of mill, to accelerate the speed that material moves to grinding district, improve mill efficiency.
Embodiment 3:
Refer to Fig. 3 ~ Fig. 4, described vertical roller grinder adopts at least 2 grinding rollers 1 of being evenly arranged and 1 mill 2 to carry out grinding, above described mill 2, the auxiliary mill 6 affixed with it is set, described auxiliary mill 6 is provided with at least 2 mixing rolls 7 be evenly arranged, and the region above described auxiliary mill 6 forms described milling zone.The quantity of described feed back pipe 4 is identical with the quantity of described mixing roll 7, and all described feed back pipes 4 are evenly arranged, and the front of each described mixing roll 7 arranges a described feed back pipe 4.
Above-mentioned vertical roller grinder adopts double-deck mill structure, is driven by same drive unit.The correction of the flank shape of fragmentation to the new feeding of one-level and grinding and finished particle mainly born by grinding roller 1 and mill 2, and the new feeding of one-level is fed by feed bin 3; Described auxiliary mill 6 and mixing roll 7 bear the concentrated grinding of two stage materials.The front of each described mixing roll 7 arranges 1 described feed back pipe 4, can realize multiple spot feeding and concentrate grinding.Above-mentioned feed back pipe 4 is preferably arranged in 30 ° ~ 45 °, the front place of mixing roll 7, makes described two stage materials by feed back pipe 4 30 ° ~ 45 ° feedings from the front of described mixing roll 7, can shorten the idle stroke of two stage materials.Two stage materials returned by powder concentrator feed described auxiliary mill 6 by feed back pipe 4 from the front of each mixing roll 7, and the material after grinding is brought into powder concentrator by the updraft above mill 2 leaving in auxiliary mill 6 dropping process, completes a grinding circulation.The pressure F1 be applied on all grinding rollers 1 is provided by compression system I, the pressure F2 be applied on all mixing rolls 7 is provided by compression system II, grinding roller 1 and mixing roll 7 arrange independently compression system separately and pressurize, and can realize the flexible adjustment of severity of grind easily.In the present embodiment, feed back pipe 4 is arranged in 30 °, the front place of mixing roll, and two stage materials feed described milling zone by 30 °, the front of each mixing roll.Adopt pyramidal structure to be connected with grinding district in the middle part of mill, to accelerate the speed that material moves to grinding district, improve mill efficiency.
Embodiment 4:
Refer to Fig. 5 ~ Fig. 6, described vertical roller grinder adopts at least 2 pulverization rollers 8 be evenly arranged, at least 2 mixing rolls 7 be evenly arranged and 1 mill 2 to carry out grinding, spacer ring 9 is provided with in the middle part of the grinding district of described mill 2, the grinding of described mill is distinguished into the fracture area 23 being positioned at inner side and the described milling zone 22 being positioned at outside by described spacer ring 9, all described pulverization rollers 8 are all arranged in described fracture area 23, and all described mixing rolls 7 are all arranged in described milling zone 22; The quantity of described feed back pipe 4 is identical with the quantity of described mixing roll 7, and all described feed back pipes 4 are evenly arranged, and the front of each described mixing roll 7 arranges a described feed back pipe 4.
Above-mentioned vertical roller grinder adopts grinding structure in parallel, and new feeding feeds the middle part of mill 2 by feed bin 3, and the pressure F1 be applied on all pulverization rollers 8 is provided by compression system III, and the pressure F2 be applied on all mixing rolls 7 is provided by compression system IV.Pulverization roller 8 and mixing roll 7 are pressurizeed by independently compression system respectively, can realize the flexible adjustment of severity of grind easily.The front of each described mixing roll 7 arranges 1 described feed back pipe 4, can realize multiple spot feeding and concentrate grinding.Above-mentioned feed back pipe 4 is preferably arranged in 30 ° ~ 45 °, the front place of mixing roll 7, make described two stage materials by feed back pipe 4 from the front of described mixing roll 7 30 ° ~ 45 ° feeding described milling zones 22, the idle stroke of two stage materials can be shortened.In the present embodiment, feed back pipe 4 is arranged in 30 °, the front place of mixing roll, and two stage materials feed described milling zone 22 by 30 °, the front of each mixing roll.Adopt pyramidal structure to be connected with grinding district in the middle part of mill, to accelerate the speed that material moves to grinding district, improve mill efficiency.
The utility model derives from cement vertical roller grinder, but is not limited to cement vertical roller grinder, can be applicable in the vertical roller grinders such as cement slurry, slag, coal, petroleum coke, superfine grinding.
Although be described preferred embodiment of the present utility model by reference to the accompanying drawings above; but the utility model is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; do not departing under the ambit that the utility model aim and claim protect, can also make a lot of form, these all belong within protection domain of the present utility model.
Claims (10)
1. the classification grinding structure of a vertical roller grinder, it is characterized in that, comprise the milling zone and feed back pipe determined in the grinding district of described vertical roller grinder, the described import of feed back pipe is connected with the feedback outlet of powder concentrator, and the outlet of described feed back pipe is relative with described milling zone.
2. the classification grinding structure of vertical roller grinder according to claim 1, it is characterized in that, described vertical roller grinder is provided with at least 2 the taper grinding rollers and a mill that are evenly arranged, at interior large end outside, the region that described mill is corresponding with the large end of taper grinding roller forms described milling zone to described taper grinding roller small end; The quantity of described feed back pipe is identical with the quantity of described taper grinding roller, and all described feed back pipes are evenly arranged, and the front of each described taper grinding roller arranges a described feed back pipe.
3. the classification grinding structure of vertical roller grinder according to claim 1, it is characterized in that, described vertical roller grinder is provided with at least 2 the taper grinding rollers and 1 mill that are evenly arranged, and at interior large end outside, the stage casing of described taper grinding roller is provided with annular groove to described taper grinding roller small end; The annular projection be engaged with described taper grinding roller stage casing annular groove is formed at the position that described mill is relative with taper grinding roller stage casing annular groove, the fracture area of the new feeding of one-level is formed in the region that described mill is relative with taper grinding roller small end, the region relative with described taper grinding roller stage casing annular groove at mill annular projection forms described milling zone, is formed grind Runout area in the region that described mill is corresponding with the large end of taper grinding roller; The quantity of described feed back pipe is identical with the quantity of described taper grinding roller, and all described feed back pipes are evenly arranged, and the front of each described taper grinding roller arranges a described feed back pipe.
4. the classification grinding structure of vertical roller grinder according to claim 1, it is characterized in that, described vertical roller grinder is provided with at least 2 the grinding rollers and 1 mill that are evenly arranged, above described mill, the auxiliary mill affixed with it is set, described auxiliary mill is provided with at least 2 mixing rolls be evenly arranged, and the region above described auxiliary mill forms described milling zone; The quantity of described feed back pipe is identical with the quantity of described mixing roll, and all described feed back pipes are evenly arranged, and the front of each described mixing roll arranges a described feed back pipe.
5. the classification grinding structure of vertical roller grinder according to claim 1, it is characterized in that, described vertical roller grinder is provided with at least 2 pulverization rollers be evenly arranged, at least 2 mixing rolls be evenly arranged and 1 mill, spacer ring is provided with in the middle part of the grinding district of described mill, the grinding of described mill is distinguished into the fracture area being positioned at inner side and the described milling zone being positioned at outside by described spacer ring, all described pulverization rollers are all arranged in described fracture area, and all described mixing rolls are all arranged in described milling zone; The quantity of described feed back pipe is identical with the quantity of described mixing roll, and all described feed back pipes are evenly arranged, and the front of each described mixing roll arranges a described feed back pipe.
6. the classification grinding structure of vertical roller grinder according to claim 4, is characterized in that, all described grinding rollers are provided with a set of compression system I, and all described mixing rolls are provided with a set of compression system II.
7. the classification grinding structure of vertical roller grinder according to claim 5, is characterized in that, all described pulverization rollers are provided with a set of compression system III, and all described mixing rolls are provided with a set of compression system IV.
8. the classification grinding structure of the vertical roller grinder according to Claims 2 or 3, is characterized in that, arranges a described feed back pipe at 30 ° ~ 45 °, the front place of each described taper grinding roller.
9. the classification grinding structure of the vertical roller grinder according to claim 4 or 5, is characterized in that, in the front of each described mixing roll, 30 ° ~ 45 ° places arrange a described feed back pipe.
10. the classification grinding structure of the vertical roller grinder according to claim 3 ~ 5 any one, is characterized in that, adopts pyramidal structure to be connected with grinding district in the middle part of described mill.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104874443A (en) * | 2015-06-10 | 2015-09-02 | 天津水泥工业设计研究院有限公司 | Graded milling structure of vertical roller grinder |
| WO2018149036A1 (en) * | 2017-02-17 | 2018-08-23 | 江苏新业重工股份有限公司 | Vertical classifying pulveriser with laterally slanting feeding |
| CN108855509A (en) * | 2018-06-30 | 2018-11-23 | 湖州全优电工材料有限公司 | A kind of electrician's silicon powder grinding device |
| CN108906233A (en) * | 2018-08-08 | 2018-11-30 | 李娜 | A kind of vertical mill mill that architectural engineering uses |
| CN108906232A (en) * | 2018-08-08 | 2018-11-30 | 李娜 | A kind of energy-saving vertical that architectural engineering uses mill mill |
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2015
- 2015-06-10 CN CN201520396692.6U patent/CN204865994U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104874443A (en) * | 2015-06-10 | 2015-09-02 | 天津水泥工业设计研究院有限公司 | Graded milling structure of vertical roller grinder |
| CN104874443B (en) * | 2015-06-10 | 2017-06-23 | 天津水泥工业设计研究院有限公司 | A kind of classification grinding structure of vertical roller grinder |
| WO2018149036A1 (en) * | 2017-02-17 | 2018-08-23 | 江苏新业重工股份有限公司 | Vertical classifying pulveriser with laterally slanting feeding |
| CN108855509A (en) * | 2018-06-30 | 2018-11-23 | 湖州全优电工材料有限公司 | A kind of electrician's silicon powder grinding device |
| CN108906233A (en) * | 2018-08-08 | 2018-11-30 | 李娜 | A kind of vertical mill mill that architectural engineering uses |
| CN108906232A (en) * | 2018-08-08 | 2018-11-30 | 李娜 | A kind of energy-saving vertical that architectural engineering uses mill mill |
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