CN104003635B - Waste heat grinding process and equipment - Google Patents
Waste heat grinding process and equipment Download PDFInfo
- Publication number
- CN104003635B CN104003635B CN201310069758.6A CN201310069758A CN104003635B CN 104003635 B CN104003635 B CN 104003635B CN 201310069758 A CN201310069758 A CN 201310069758A CN 104003635 B CN104003635 B CN 104003635B
- Authority
- CN
- China
- Prior art keywords
- powder
- mill
- waste heat
- whole sphere
- grinding process
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000227 grinding Methods 0.000 title claims abstract description 58
- 239000002918 waste heat Substances 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title abstract description 34
- 239000000843 powder Substances 0.000 claims abstract description 45
- 239000000463 material Substances 0.000 claims abstract description 34
- 238000009413 insulation Methods 0.000 claims abstract description 6
- 238000000498 ball milling Methods 0.000 claims description 2
- 230000008676 import Effects 0.000 claims description 2
- 238000003801 milling Methods 0.000 claims 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 15
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 abstract description 10
- 231100001261 hazardous Toxicity 0.000 abstract description 5
- 238000001035 drying Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000004568 cement Substances 0.000 description 11
- 239000002245 particle Substances 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004566 building material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Landscapes
- Crushing And Grinding (AREA)
- Processing Of Solid Wastes (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The invention discloses waste heat grinding process and equipment, including Vertical Mill, whole sphere of powder mill, elevator, conveying skewed slot, powder concentrator, catcher.It is characterized in that: the waste heat airduct of whole sphere of powder mill connects Vertical Mill hot wind inlet, and on waste heat airduct, string has cyclone collector and booster fan；Waste heat airduct, cyclone collector, the outer surface of whole sphere of powder mill all have insulation village material.Waste heat grinding process of the present invention and equipment are that the hot blast that utilization whole sphere of powder mill produces in grinding process is delivered to Vertical Mill by booster fan pressurization through the return of waste heat airduct, thus dry the material in Vertical Mill.This grinding process drying materials, without the hazardous emission such as sulfur dioxide and nitrogen oxides, is the grinding new technology of a kind of energy-saving and emission-reduction.
Description
Technical field
The present invention relates to a kind of grinding process, it is adaptable to the crushing and grinding of building material industry cement material.It is particularly suited for ripe
The grinding of the cement grinding plant that material temperature degree is low, mixing material moisture is big.
Background technology
The grinding of material accounts for more than the 80% of total power consumption, and the effective rate of utilization of ball mill is about 5～10%, the overwhelming majority
Heat energy, acoustic energy can be changed into, be wherein changed into heat energy and reach more than 60% (the high thin cement grinding mill of such as ￠ 4.2 × 13m, distribution motivation
Power 3550kw, grinding specific surface area 450m2/kg heat energy loss about 2100kw, can be by about 50000m3/h air and 180t/h thing
Material heats up about 50 DEG C).The particularly grinding of cement grinding plant, clinker temperature is low, and mixing material moisture is big, and mill efficiency is low, energy consumption
High；If setting up drying unit, grinding cost is high, and the hazardous emission such as sulfur dioxide and nitrogen oxides is serious.Energy-saving and emission-reduction are enterprises
The target that industry is pursued, is the road of enterprise's generation, occurs in that some grinding process schemes, such as Patent No. in the market
A kind of whole grinding process of opening a way of 201110133478.8, the closed circuit whole grinding work of one of Patent No. 201110133438.3
Skill, the grinding process a kind of in parallel of Patent No. 201110133418.6 and equipment, the one of Patent No. 201110133418.6
Plant series connection grinding process and equipment.But these grinding process schemes still can not meet the grinding of the big material of moisture content, and front
The finished particle particle diameter shape of two kinds of grinding process scheme productions has a lot of lamellar, needle-like, and cement serviceability is poor, it is impossible to meet
Modern business mixes demand.
Summary of the invention
It is an object of the invention to overcome above deficiency, it is provided that a kind of waste heat grinding process and equipment.Utilize whole sphere of powder mill
The hot blast produced in grinding process, the pressurization of pressurized blower fan is returned by waste heat airduct and delivers to Vertical Mill, thus to the thing in Vertical Mill
Material is dried.This grinding process scheme drying materials, without the hazardous emission such as sulfur dioxide and nitrogen oxides, is a kind of energy-conservation
The grinding new technology reduced discharging；Adaptable to the moisture content of grinding material, finished particle particle diameter shape is optimal, cement usability
Can preferably, waste heat grinding process is the optimal grinding process scheme of current low-carbon economy revolution epoch cement grinding plant.
Waste heat grinding process that the present invention provides and equipment, including Vertical Mill, whole sphere of powder mill, elevator, carry skewed slot, select powder
Machine, catcher.It is characterized in that: the waste heat airduct of whole sphere of powder mill outlet air end connects Vertical Mill hot wind inlet.
Above-mentioned waste heat grinding process and equipment, be characterised by: on waste heat airduct, string has cyclone collector and booster fan.
Above-mentioned waste heat grinding process and equipment, be characterised by: the outside of had surplus heat airduct and cyclone collector all has
Insulation village material.
Above-mentioned waste heat grinding process and equipment, be characterised by: all has insulation village material outside the cylinder of whole sphere of powder mill.
The operation principle of the waste heat grinding process that the present invention provides: waste heat grinding process is divided into material road, wind path.
Material road: material enters in Vertical Mill from the charging aperture 2 of Vertical Mill 1, by attrition crushing, the grinding of its grinding roller, qualified thing
Material, under wind-force effect, enters in powder concentrator 5 from Vertical Mill air outlet 4 and is sorted, and qualified finished product is collected by catcher 12 and delivered to into
Strain is united, and does not conforms to material and enters whole sphere of powder mill 6 be ground from the thick mouth that returns of powder concentrator, the material after whole powder ball milling by
Elevator 7, conveying skewed slot 8 sort in delivering to powder concentrator again, and qualified finished product is collected by catcher and delivered to finished product system, not compound
Expect that the thick mouth entrance whole sphere of powder mill that returns from powder concentrator carries out regrinding, until qualified.
Wind path: under the effect of booster fan 11, the cold wind import grinding 6 feed ends from the whole sphere of powder enters in whole sphere of powder mill,
Carry heat and enter in Vertical Mill 1 through waste heat airduct 10, cyclone collector 9, hot wind inlet 3 from the air outlet of whole sphere of powder mill 6, then warp
Powder concentrator 5, catcher 12 are discharged by exhaust blower 13.
Waste heat grinding process of the present invention has the advantage that
1, material in Vertical Mill is carried out by the thermal current that this grinding process scheme uses whole sphere of powder mill to produce in grinding process
Drying, the moisture content of grinding material is adaptable, and power consumption source is few, and operating cost is low.
2, without the hazardous emission such as sulfur dioxide and nitrogen oxides, UTILIZATION OF VESIDUAL HEAT IN grinding process is current low-carbon economy revolution
The optimal grinding process scheme of epoch cement grinding plant.
3, the finished particle particle diameter shape of this grinding process scheme is without lamellar, needle-like, and cement serviceability is best, is modern
The optimum selection of business's mixing cement.
Accompanying drawing explanation
Fig. 1 is technological process and the equipment drawing of the present invention.
Embodiment
Such as Fig. 1, the charging aperture 2 in the middle part of Vertical Mill 1；The hot wind inlet 3 of Vertical Mill 1 bottom connects waste heat airduct 10, booster fan
11, cyclone collector 9, the air outlet of whole sphere of powder mill 6；The air outlet 4 on Vertical Mill 1 top connects powder concentrator 5, catcher 12, air draft
Machine 13；The thick mouth that returns of powder concentrator 5 connects the charging aperture of whole sphere of powder mill 6；The discharging opening of whole sphere of powder mill 6 connects elevator 7, conveying tiltedly
Groove 8, the charging aperture of powder concentrator 5.Waste heat airduct 10, cyclone collector 9, the outer surface of whole sphere of powder mill 6 all have insulation village material.
The present invention it is critical only that: in utilizing waste heat that whole sphere of powder mill produces in grinding production process to Vertical Mill, material enters
Row is dried, and only needs the power consumption of booster fan, and the moisture content of grinding material is adaptable, and operating cost is low；This grinding process thing
Material is dried without the hazardous emission such as sulfur dioxide and nitrogen oxides, and UTILIZATION OF VESIDUAL HEAT IN grinding process is the current low-carbon economy revolution epoch
The optimal grinding process scheme of cement grinding plant.
Claims (2)
1. waste heat milling equipment, including Vertical Mill, whole sphere of powder mill, elevator, conveying skewed slot, powder concentrator, catcher, is characterized in that:
Have surplus heat between the whole outlet air end of sphere of powder mill and the hot wind inlet of Vertical Mill airduct；
On waste heat airduct, string has cyclone collector and booster fan；
The outer surface of had surplus heat airduct and cyclone collector all has insulation village material；
Material road: material enters in Vertical Mill from the charging aperture of Vertical Mill, and by attrition crushing, the grinding of its grinding roller, qualified material is at wind
Under power effect, entering in powder concentrator from Vertical Mill air outlet and be sorted, qualified finished product is collected by catcher and is delivered to finished product system, does not conforms to
Material is ground from the thick mouth entrance whole sphere of powder mill that returns of powder concentrator, and the material after whole powder ball milling is by elevator, conveying
Skewed slot sorts in delivering to powder concentrator again, and qualified finished product is collected by catcher and delivered to finished product system, does not conforms to material from powder concentrator
Return thick mouth entrance whole sphere of powder mill and carry out regrinding, until qualified；
Wind path: under the effect of booster fan, enters in whole sphere of powder mill from the cold wind import of whole sphere of powder mill feed end, carries heat
Enter in Vertical Mill through waste heat airduct, cyclone collector, hot wind inlet from the air outlet of whole sphere of powder mill, then through powder concentrator, catcher
Discharged by exhaust blower.
Waste heat milling equipment the most according to claim 1, is characterized in that: the cylinder outer surface of whole sphere of powder mill all has insulation
Village expects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310069758.6A CN104003635B (en) | 2013-02-21 | 2013-02-21 | Waste heat grinding process and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310069758.6A CN104003635B (en) | 2013-02-21 | 2013-02-21 | Waste heat grinding process and equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104003635A CN104003635A (en) | 2014-08-27 |
| CN104003635B true CN104003635B (en) | 2016-11-16 |
Family
ID=51364577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310069758.6A Expired - Fee Related CN104003635B (en) | 2013-02-21 | 2013-02-21 | Waste heat grinding process and equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104003635B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108855941B (en) * | 2018-07-26 | 2024-05-31 | 郑州沃特节能科技股份有限公司 | Steel slag micro powder selecting system utilizing waste heat flue gas of steel plant |
| CN115888948A (en) * | 2022-11-16 | 2023-04-04 | 成武金利宏新能源有限公司 | Preparation method of slag micro powder |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0729068B2 (en) * | 1988-08-01 | 1995-04-05 | 石川島播磨重工業株式会社 | Pre-milling mill exhaust gas condensation prevention device |
| JPH03146146A (en) * | 1989-11-01 | 1991-06-21 | Ishikawajima Harima Heavy Ind Co Ltd | Device for pulverizing wet material |
| JPH05337395A (en) * | 1992-06-02 | 1993-12-21 | Kotobuki Giken Kogyo Kk | Grinding equipment |
| DE4337215A1 (en) * | 1993-10-30 | 1995-05-04 | Kloeckner Humboldt Deutz Ag | Circulating grinding plant |
| CN1187390A (en) * | 1997-01-05 | 1998-07-15 | 郑康平 | Multifunctional ball mill for milling metal ore |
| JP2004188368A (en) * | 2002-12-13 | 2004-07-08 | Ube Machinery Corporation Ltd | Grinding method |
| JP4269257B2 (en) * | 2003-05-28 | 2009-05-27 | 宇部興産機械株式会社 | Grinding method |
| CN101862699B (en) * | 2010-06-03 | 2012-01-04 | 南京旋立重型机械有限公司 | Semi-finished pre-grinding vertical-milling and ball-milling combined grinding device |
| CN201740412U (en) * | 2010-08-20 | 2011-02-09 | 三门峡市新仰韶合成料有限公司 | Rotary kiln cooler residual-heat utilizing device |
| CN102784702A (en) * | 2011-05-15 | 2012-11-21 | 盐城吉达机械制造有限公司 | Parallelly-connected grinding technology and equipment thereof |
| CN102784693A (en) * | 2011-05-15 | 2012-11-21 | 盐城吉达环保设备有限公司 | Closed circuit final grinding technology |
| CN102784691A (en) * | 2011-05-15 | 2012-11-21 | 盐城吉达机械制造有限公司 | Open circuit final grinding technology |
-
2013
- 2013-02-21 CN CN201310069758.6A patent/CN104003635B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN104003635A (en) | 2014-08-27 |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20161116 Termination date: 20190221 |