CN105080690B - A kind of vertical roller grinder bypass classification drying raw material preparation system and technique - Google Patents
A kind of vertical roller grinder bypass classification drying raw material preparation system and technique Download PDFInfo
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- CN105080690B CN105080690B CN201510494190.1A CN201510494190A CN105080690B CN 105080690 B CN105080690 B CN 105080690B CN 201510494190 A CN201510494190 A CN 201510494190A CN 105080690 B CN105080690 B CN 105080690B
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- 239000002994 raw material Substances 0.000 title claims abstract description 70
- 238000001035 drying Methods 0.000 title claims abstract description 56
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title description 7
- 239000000843 powder Substances 0.000 claims abstract description 48
- 238000009423 ventilation Methods 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims description 41
- 238000000227 grinding Methods 0.000 claims description 23
- 238000007790 scraping Methods 0.000 claims description 10
- 235000012054 meals Nutrition 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000004568 cement Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- Disintegrating Or Milling (AREA)
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Abstract
The invention discloses a kind of vertical roller grinders to bypass classification drying raw material preparation system, raw material elevator discharge port connects the vertical roller grinder machine inlet, the vertical roll grinder discharge port connection mill tail promotes machine inlet, the mill tail elevator discharge port connection drying equipment feed inlet, the drying equipment discharge port connection siccative promotes machine inlet, the first classifying equipoment V-type powder concentrator feed inlet of siccative elevator discharge port connection, the whole classifying equipoment vortex powder selecting machine air inlet of V-type air outlet of powder concentrator connection, the air inlet of the vortex powder selecting machine air outlet connection cyclone collector, the air inlet of the air outlet connection circular centrifugal ventilation blower of the cyclone collector, the air outlet of the circular centrifugal ventilation blower and the air inlet of tower drier connect, the air inlet of the air outlet connection V-type powder concentrator of the tower drier；The present invention gives full play to system convenient for rationally adjusting and control system technological parameter, achievees the purpose that system volume increase consumption reduction.
Description
Technical field
The present invention relates to a kind of vertical roller grinders to bypass classification drying raw material preparation system and its production technology, belongs to Building wood
Expect manufacturing field.
Background technology
Building material industry new type nonaqueous cement enterprise generally prepares raw material, coal dust, slag powders and cement using vertical roller grinder.It is vertical
Formula roller mill prepares raw material, and grinding unit power consumption is average in 20kwh/t or so, which prepares raw material than conventional bead mill grinding
Economize on electricity 25% or so.Current new type nonaqueous cement enterprise vertical roller grinder raw material prepare production technology, and raw material grinding, material are defeated
Give, the classification of raw material stoving and finished product is completed in vertical roll grinder, have many advantages, such as simple for process, floor space is small；
But all it is by the high wind of vertical mill system since existing Vertical Mill prepares raw material technique its stock grading, moisture drying and material conveying
Speed, Wind Volume are come what is realized, this is resulted in, and system resistance is big, drying materials classification efficiency is not high, systematic air flow is larger and each
The technological parameter of unit function its technological parameter caused by the limitation on main machine structure be difficult to control etc. it is many it is unfavorable because
Element.
Invention content
The technical problems to be solved by the invention, which are to provide, a kind of to be set vertical roller grinder and drying, classifying equipoment and conveying
Back-up from, can be convenient for adjust and control each unit technological parameter, dry, select powder, the higher vertical roller grinder of material transfer efficiency
Bypass classification drying raw material preparation system；Further, the technical problem to be solved by the invention is to provide a kind of drying, choosings
The production technology of the higher vertical roller grinder bypass classification drying raw material preparation system of powder, material transfer efficiency；Further, originally
The technical problems to be solved by the invention are to provide after a kind of roller mill and are prepared convenient for the vertical roller grinder bypass classification drying raw material of discharging
System and its production technology.
For solution more than technical problem, the technical solution adopted by the present invention is：A kind of vertical roller grinder bypass classification drying life
Preparation system is expected, including vertical roll grinder, raw material elevator, mill tail elevator, drying equipment, siccative elevator, circular centrifugal
Ventilation blower, cyclone collector and coarse powder air conveyer flume, the raw material elevator discharge port connect the vertical roll grinder into
Material mouth, the vertical roll grinder discharge port connection mill tail promote machine inlet, the mill tail elevator discharge port connection institute
Drying equipment feed inlet is stated, the drying equipment discharge port connects the siccative and promotes machine inlet, and the siccative elevator goes out
The material mouth connection bypass classifying equipoment feed inlet, the bypass classifying equipoment discharge port connect the cyclone collector air inlet
Mouthful, the cyclone collector connects circular centrifugal ventilation blower, and the cyclone collector discharge port connects finished product raw material air flume
It is conveyed, the coarse powder air conveyer flume, the coarse powder air delivery is connected under the hopper of the bypass classifying equipoment
Skewed slot connects the feed inlet of the vertical roll grinder.
Preferably, the drying equipment is vertical drying raw meal machine.
Preferably, the classifying equipoment that bypasses is V-type powder concentrator and vortex classifier, the siccative elevator discharge port
Connect the air inlet of the V-type powder concentrator, the air outlet connection vortex classifier air inlet of the V-type powder concentrator, the vortex
Grader air outlet connects the air inlet of cyclone separator, the air outlet connection circular centrifugal ventilation blower of the cyclone separator
Air inlet, the air outlet of the circular centrifugal ventilation blower and the air inlet of tower drier connect, and the tower drier goes out
Air port connect V-type powder concentrator air inlet, the vortex classifier coarse powder discharge port connection coarse powder air conveyer flume into
Material mouth, the feed inlet of the discharge port connection vertical roller grinder of coarse powder air conveyer flume, the cyclone collector discharge port connect into
Product raw material air flume is conveyed, into warehouse for finished product.
Preferably, setting homogenizing device in the vertical roll grinder.
A kind of vertical roller grinder bypass classification drying raw material preparation process, comprises the steps of：
First, grinding：The raw material elevator transferring raw material to the vertical roll grinder, the vertical roll grinder carries out raw material
Grinding；
2nd, it dries：Raw material after grinding is delivered to the drying equipment through the mill tail elevator and carries out drying materials；
3rd, it is classified：Raw material after drying is delivered to the V-type powder concentrator, the V-type powder concentrator through the siccative elevator
It carries out material cake to break up and be just classified, then is delivered to the vortex classifier and carries out finished product classification；
4th, it is put in storage：Coarse powder is transmitted back to the vertical roll grinder through the coarse powder air conveyer flume and is continued after classification
Grinding, fine powder is by cyclone collector material qi leel from cyclone collector connection finished product raw material air flume conveys finished product raw material
Enter warehouse for finished product.
Preferably, setting material bearing disc and material scraping plate in the vertical roll grinder.
Preferably, raw material is in the vertical roll grinder after grinding, after being scraped by the material scraping plate, by the material bearing disc
Again by the mill tail elevator conveying after collection.
A kind of vertical roller grinder bypass classification drying raw material preparation system provided by the present invention and technique, are set by drying
Standby, bypass classifying equipoment, raw material elevator, mill tail elevator, siccative elevator, cyclone collector, coarse powder air conveyer flume,
Circular centrifugal ventilation blower realizes vertical roller grinder and drying, classifying equipoment and conveying equipment separation, and can be convenient for adjusting and
Each unit technological parameter is controlled, so as to bring following advantageous effect：
1st, drying efficiency higher.It is convenient for using vertical drying raw meal machine for material drying feature optimization design, thermal effect
Rate higher, the usage amount of medium is dried by reducing tail gas can increase waste heat power generation, on the other hand make main exhaust fan
Air quantity is greatly reduced, and energy saving of system consumption reduction is apparent.For high-moisture raw material, since drying is using special equipment, adaptability is more
By force.
2nd, grinding efficiency higher.Using bypass hierarchy system, former vertical roller grinder can be overcome to carry classifying equipoment because of structure
The limitation of design and causing grader divergent function that cannot optimize causes grinding efficiency bad, the grader separated can basis
Raw material fineness characteristic distributions optimize, convenient for improving classification efficiency and reduction system air quantity.
3rd, material transfer efficiency improves.Existing vertical roller grinder system material is heat smoke by vertical roller grinder ontology by powder
Grind materials are promoted to included grader with pneumatic conveying mode and are classified, since the equipment resistance of vertical roller grinder generally all reaches
6000Pa or so, thus voltage loss is larger, Geldart-D particle is less efficient in addition, present invention setting raw material elevator, mill tail
Elevator, siccative elevator, cyclone collector, coarse powder air conveyer flume, circular centrifugal ventilation blower are conveyed as mechanical mass
Equipment improves transfer efficiency, and reduces system circulation centrifugal fan total head.
Hierarchy system is dried by bypass and prepares Raw Material System technique, production capacity improves 20% or so than original system, can drop
Low raw material unit consumption 3-7kwh/t or so.
Further, setting material bearing disc and material scraping plate in the vertical roll grinder.
Raw material is in the vertical roll grinder after grinding, and part high-moisture raw material can be adhered in vertical roll grinder, easily
Raw Meal Roller Mill is caused to be not thorough, and load reduces, after setting material bearing disc and material scraping plate, the raw material of adherency are scraped by material scraping plate,
Mill tail elevator is delivered to from discharge port again after being collected by material bearing disc, roller mill and discharging efficiency can be improved.
A kind of vertical roller grinder bypass classification drying raw material preparation system provided by the present invention and technique, pass through vertical roller
Grinding, drying, classification and material in grinding system convey each function and carry out bypass separation, give full play to each unit in system and set
Standby working performance, improve each unit equipment working efficiency, convenient for rationally adjust with control system technological parameter, reach system
Volume increase, energy-saving purpose.
Description of the drawings
Fig. 1 is the system structure diagram of the present invention.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and be not intended to limit the protection scope of the present invention and limit the scope of the invention.
As shown in Fig. 1, a kind of vertical roller grinder bypass classification drying raw material preparation system, including vertical roll grinder 2, former
Expect elevator 1, mill tail elevator 3, drying equipment 4, siccative elevator 5, circular centrifugal ventilation blower 10, cyclone collector 9 and thick
Powder air conveyer flume 8,1 discharge port of raw material elevator connect 2 feed inlet of vertical roll grinder, the vertical roll grinder
2 discharge ports connection, 3 feed inlet of mill tail elevator, 3 discharge port of mill tail elevator connect the drying equipment 4 and feed
Mouthful, 4 discharge port of drying equipment connects 5 feed inlet of siccative elevator, described in 5 discharge port of the siccative elevator connection
The air inlet of V-type powder concentrator 6, air outlet connection 7 air inlet of vortex classifier of the V-type powder concentrator 6, the vortex classifier
7 air outlets connect the air inlet of cyclone separator 9, the air outlet connection circular centrifugal ventilation blower 10 of the cyclone separator 9
Air inlet, the air outlet of the circular centrifugal ventilation blower 10 and the air inlet of tower drier connect, the tower drier
The air inlet of air outlet connection V-type powder concentrator 6, the coarse powder discharge port connection coarse powder air conveyer flume 8 of the vortex classifier 7
Feed inlet, coarse powder air conveyer flume 8 discharge port connection vertical roller grinder 2 feed inlet, 9 discharge port of cyclone collector
Connection finished product raw material air flume 11 is conveyed, into warehouse for finished product.
The drying equipment 4 is preferably vertical drying raw meal machine.
Setting homogenizing device in the vertical roll grinder 2.
A kind of vertical roller grinder bypass classification drying raw material preparation process, comprises the steps of：
First, grinding：1 transferring raw material of raw material elevator to the vertical roll grinder 2, the vertical roll grinder 2 carries out
Raw material grinding；
2nd, it dries：Raw material after grinding is delivered to the vertical drying raw meal machine through the mill tail elevator 3 and carries out material
Drying；
3rd, it is classified：Raw material after drying is delivered to the V-type powder concentrator 6 through the siccative elevator 5, and the V-type selects powder
Machine 6 carries out material cake and breaks up and be just classified, then is delivered to the vortex classifier 7 and carries out finished product classification；
4th, it is put in storage：After classification coarse powder through the coarse powder air conveyer flume 8 be transmitted back to the vertical roll grinder 2 carry out after
Continuous grinding, fine powder is by 9 material qi leel of cyclone collector from the discharge port connection finished product raw material air flume 11 of cyclone collector 9
Feed inlet conveying finished product raw material enter warehouse for finished product.
As a kind of preferred embodiment of the present invention, material bearing disc and material scraping plate are set in the vertical roll grinder 2.
In the vertical roll grinder 2 after grinding, part raw material can be adhered in vertical roll grinder 2 raw material, be easy to cause
Raw Meal Roller Mill is not thorough, and load reduces, and after setting material bearing disc and material scraping plate, the raw material of adherency are scraped by material scraping plate, by holding
Charging tray is delivered to mill tail elevator 3 from discharge port again after collecting, and can improve roller mill and discharging efficiency.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformation can also be made, these are improved and deformation
Also it should be regarded as protection scope of the present invention.
Claims (6)
1. a kind of vertical roller grinder bypass classification drying raw material preparation system, including vertical roll grinder（2）, it is characterised in that：Also wrap
Include raw material elevator（1）, mill tail elevator（3）, drying equipment（4）, siccative elevator（5）, circular centrifugal ventilation blower（10）, rotation
Wind collector（9）And coarse powder air conveyer flume（8）, the raw material elevator（1）Discharge port connects the vertical roll grinder（2）
Feed inlet, the vertical roll grinder（2）The discharge port connection mill tail elevator（3）Feed inlet, the mill tail elevator（3）Go out
Material mouth connects the drying equipment（4）Feed inlet, the drying equipment（4）Discharge port connects the siccative elevator（5）Charging
Mouthful, the siccative elevator（5）Discharge port connection bypass classifying equipoment feed inlet, the bypass classifying equipoment discharge port connection institute
State cyclone collector（9）Air inlet, the cyclone collector（9）Air outlet connects circular centrifugal ventilation blower（10）Air inlet, institute
State cyclone collector（9）Discharge port connection finished product raw material air flume (11) is conveyed, the hopper of the bypass classifying equipoment
Under be connected with the coarse powder air conveyer flume（8）, the coarse powder air conveyer flume connection vertical roll grinder（2）, institute
It is V-type powder concentrator to state bypass classifying equipoment（6）And vortex classifier（7）, the V-type powder concentrator（6）Air outlet connection described in
Vortex classifier（7）Air inlet.
2. a kind of vertical roller grinder bypass classification drying raw material preparation system as described in claim 1, it is characterised in that：It is described
Drying equipment (4) is vertical drying raw meal machine.
3. a kind of vertical roller grinder bypass classification drying raw material preparation system as described in claim 1, it is characterised in that：It is described
Vertical roll grinder（2）Interior setting homogenizing device.
4. a kind of vertical roller grinder bypass classification drying raw material preparation process, it is characterised in that：It comprises the steps of：
First, grinding：Raw material elevator（1）Transferring raw material is to vertical roll grinder（2）, vertical roll grinder（2）Carry out raw material grinding；
2nd, it dries：Raw material after grinding is through grinding tail elevator（3）It is delivered to drying equipment（4）Carry out drying materials；
3rd, it is classified：Raw material after drying is through siccative elevator（5）It is delivered to V-type powder concentrator（6）, the V-type powder concentrator（6）Into
Row material cake is broken up and is just classified, then be delivered to vortex classifier（7）Carry out finished product classification；
4th, it is put in storage：Coarse powder is through coarse powder air conveyer flume after classification（8）It is transmitted back to the vertical roll grinder（2）It carries out continuing to grind
Mill, fine powder pass through cyclone collector（9）Expect qi leel from the cyclone collector（9）Air outlet connects circular centrifugal ventilation blower
（10）Air inlet, cyclone collector（9）Discharge port connection finished product raw material air flume (11) convey finished product raw material enter warehouse for finished product.
5. a kind of vertical roller grinder bypass classification drying raw material preparation process as claimed in claim 4, it is characterised in that：It is described
Vertical roll grinder（2）Interior setting material bearing disc and material scraping plate.
6. a kind of vertical roller grinder bypass classification drying raw material preparation process as claimed in claim 5, it is characterised in that：Raw material exists
The vertical roll grinder（2）After interior grinding, after being scraped by the material scraping plate, carried again by the mill tail after being collected by the material bearing disc
The machine of liter（3）Conveying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510494190.1A CN105080690B (en) | 2015-08-12 | 2015-08-12 | A kind of vertical roller grinder bypass classification drying raw material preparation system and technique |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510494190.1A CN105080690B (en) | 2015-08-12 | 2015-08-12 | A kind of vertical roller grinder bypass classification drying raw material preparation system and technique |
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| CN105080690A CN105080690A (en) | 2015-11-25 |
| CN105080690B true CN105080690B (en) | 2018-06-08 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105396678A (en) * | 2015-12-04 | 2016-03-16 | 桂林晟兴机械制造有限公司 | External circulation drying and milling machine |
| CN109954554B (en) * | 2017-12-25 | 2024-05-28 | 江苏天元金属粉末有限公司 | High-activity superfine spherical aluminum powder with controllable oxide shell layer and grading system thereof |
| CN108927275A (en) * | 2018-08-13 | 2018-12-04 | 南京凯盛国际工程有限公司 | Combined type cement grinding system and method suitable for high moisture content material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203360283U (en) * | 2013-07-30 | 2013-12-25 | 南京凯盛国际工程有限公司 | Outer circulation final grinding system of cement vertical mill |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3901436C2 (en) * | 1989-01-19 | 2001-01-25 | Deutz Ag | Process for operating a circular grinding plant for grinding and drying moist material |
| CN102153300B (en) * | 2011-05-06 | 2012-11-28 | 吴江市明港道桥工程有限公司 | Cement pulverizing system and method |
| CN102500455B (en) * | 2011-12-21 | 2013-10-30 | 湖北工业大学 | Tailing efficient recovery treatment method |
| CN103342482B (en) * | 2013-07-30 | 2014-10-15 | 南京凯盛国际工程有限公司 | External-circulation cement finish grinding system for vertical mill |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203360283U (en) * | 2013-07-30 | 2013-12-25 | 南京凯盛国际工程有限公司 | Outer circulation final grinding system of cement vertical mill |
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Granted publication date: 20180608 |