CN85106781A - Pulverizer for fine powder - Google Patents
Pulverizer for fine powder Download PDFInfo
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- CN85106781A CN85106781A CN85106781.6A CN85106781A CN85106781A CN 85106781 A CN85106781 A CN 85106781A CN 85106781 A CN85106781 A CN 85106781A CN 85106781 A CN85106781 A CN 85106781A
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Abstract
A kind of novel fine-grinding machinery, by in grinding machine inside new-type material ball separating device being installed, new-type material is forged separator and is adjusted the grating of three storehouse pellets (forging), has reached the fine-grinding effect.Through type approval test, prove that grinding machine is every functional.Open under the stream situation in one-level,, can reach specific area 5500cm the grinding effect of various cement
2More than/the g.For pulverizing flyash clinker-less cement, specific area can reach 7000 to 8000cm
2/ g.And possess simple in structure, easy to process, characteristics such as the grinding machine technological process is reasonable, and power savings is remarkable.
Description
The present invention is a kind of grinding machine, is mainly used in material is carried out fine-grinding.Can be applicable to industry such as building materials, metallurgy, chemical industry, refractory material, pigment.Be particularly useful for cement industry, cement is carried out fine-grinding, make high-strength cement.Perhaps, mix composite material more, guaranteeing to increase cement output under the constant situation of label by fine-grinding.
As everyone knows, in many industry such as building materials, metallurgy, chemical industry, material need carry out fine-grinding, but is to use normal mill, after being milled to certain fineness, tends to occur sizing, aggregation phenomenon, influences the operate as normal of grinding machine.Particularly in cement industry, increasing grinding fineness is an important channel of improving cement grade, and uses existing one-level to drive stream multi-compartment tube grinding machine, can not produce high thin cement.Its main cause is to be milled to specific area above 3400cm
2When/g was above, comparatively serious gathering just appearred in mill in cement, a sticking phenomenon, had hindered the carrying out of fine-grinding.And the unit power consumption of pulverizing cement rises rapidly at this moment, and the fixed screw on the liner plate is frequently interrupted, and falls the liner plate accident and also takes place often.Simultaneously,, cause gypsum dehydration, form the cement false set phenomenon because temperature is too high in the mill.
Denmark Smith (FLSmidth) company at first releases a kind of new-type grinding machine-Kang Bideng (Combidan) mill for solving the fine-grinding problem.The technical characterictic of this grinding machine sees in 1979 third phase of English edition " world's cement technology " for details.A technical characterstic of Kang Bideng mill is to add the pellet separating mechanism in normal mill, and this mechanism is made up of annular guard board, conical inner body, sieve plate, blind plate and short lifting blade etc.The material in first storehouse in the Kang Bideng mill enters separating mechanism by each space of annular guard board, runs into sieve plate, and meal is hindered, and is kicked up by short lifting blade, falls on the conical inner body, returns first storehouse; And after fine powder material sees through screen cloth, kicked up by the short lifting blade between screen cloth and the blind plate and fall on another conical inner body, and enter second storehouse.Another technical characterstic of Kang Bideng mill is the abrasive media that uses little forging and bead to load in mixture in the tail storehouse, and 6～8 road collets is housed.The port of export leaves little storehouse in the tail storehouse, and material and little forging, bead overflow into little storehouse by collet and sink in the storehouse.There is a spoonful formula guide vane that little forging, bead are taken up in the storehouse, returns the tail storehouse.Material flows out outside the mill by the outlet grate plate.But, surpass 4000cm in the grinding specific area
2When/g is above, then need with the closed cycle mill that has powder concentrator.
From the device structure and the technical process of above-mentioned Kang Bideng mill, Kang Bideng technological process complexity, thus cause the corresponding complexity of device structure, element of installation is big and weigh, installs loaded down with trivial detailsly, and it is inconvenient to overhaul, particularly open under the stream situation, be not suitable for specific area and surpass 4000cm in one-level
2The fine-grinding that/g is above.
The objective of the invention is to make a kind of new-type one-level and open the stream Super-fine grinder, when requiring pulverizing cement, specific area can reach 5500cm
2/ g, during pulverizing flyash clinker-less cement, specific area reaches 7000 to 8000cm
2/ g, thus with the technological process that one-level is opened flow pattern, can satisfy the production of producing high-strength, firmly fast even Ultrastrength cement.And and require grinding machine equipment processing simple, easy for installation, power consumption is low, and material is economized, to overcome the deficiency of Kang Bideng mill.
The present invention drives stream multi-compartment tube grinding machine to existing one-level to transform and form.By to the change of grinding machine internal structure and the change of grinding body gradation, solved normal mill in fine-grinding, the material of existence gathers, the pernicious grinding problem of sticky medium, liner and grate plate.Concrete way is that a kind of material ball separating device of being made up of overflow type partition panel, Xiao Cang, overflow type grate plate, double-deck arc bolter and blind plate has been installed between first, second two storehouse.A kind of material of being made up of forward swing angle liner plate and little castor hole grate plate has been installed in the exit in tail storehouse has been forged separator.And has adjusted the use of the abrasive body in each storehouse according to the principle that the granularity of material should adapt with the size of abrasive body.Still adopt the large ball diameter steel ball in first storehouse, adopt the big footpath forging of forging in second storehouse, in the tail storehouse with directly forging of little forging.By the retrofit work of these three aspects, make grinding machine tangible fine-grinding effect and good economic benefit occur.Under particular case, also can wear powder concentrator, to reach thinner grinding effect.
The test of three phases such as the present invention's process is small-sized, medium-sized, large-scale, proof is in all types of fine-grinding equipment, the technical-economic index of pulverizer for fine powder is the most advanced, and the unit power consumption of main frame is lower with the grinding system that has the high thin powder concentrator of series flow than vibromill.Open simultaneously that the stream Super-fine grinder has also that apparatus of the auxiliary machinery is few, flow process is simple, investment is little, service cycle long, easy and simple to handle and to advantages such as old factory mill transformation make things convenient for.For the grinding portland cement, specific area can reach 5500cm
2/ g, pulverizing flyash clinker-less cement, specific area can reach 7000 to 8000cm
2/ g has satisfied the needs of producing high-strength, firmly fast and Ultrastrength cement.In addition, pulverizer for fine powder is more simple in structure, easy to utilize than the Kang Bideng mill of F.L.Smith, especially also is suitable for the mill transformation to old factory.
Pulverizer for fine powder not only when producing the high thin product of high thin cement or other, has good technology economic, for the cement of producing general fineness or other high thin product, also can improve unit-hour output, reduces the actual power loss of main frame unit power consumption and grinding machine.
Best enforcement of the present invention can illustrate in conjunction with the following drawings.
Fig. 1 is the structural representation of pulverizer for fine powder.
Fig. 2 is the schematic diagram of an overflow type partition panel in the material ball separating device of the present invention.
Fig. 3 is an overflow type grate plate schematic diagram in the material ball separating device of the present invention.
Fig. 4 is the schematic perspective view of a double-deck arc bolter in the material ball separating device of the present invention.
Fig. 5 is the schematic perspective view that material of the present invention is forged the forward swing angle liner plate in the separator.
Consult Fig. 1, in one-level is opened many logical sequences of stream tube mill cylindrical shell 1, between first, second two storehouse material ball separating device is installed, it is made up of overflow type individual layer partition panel 2, little storehouse 3 and separating mechanism.Wherein overflow type individual layer partition panel is that common partition panel is not opened the castor hole on the annular garden circle near grinding mill barrel, as shown in Figure 2.The width of not perforate is according to being determined by the fineness requirement of the performance of the material of grinding and product, be generally grinding machine effective radius 20% to 40%.Its effect is to improve mill efficiency, and the material ball ratio that prevents first storehouse makes output unaffected along with being improved and reduce by the specific area of the material of grinding.Simultaneously, the grate plate hole that this partition panel can also the preservative ball separation mechanism is not subjected to the impact wear of big steel ball and is out of shape.The pellet separating mechanism is made up of overflow type grate plate 4, double-deck arc bolter 5 and blind plate 6.And overflow type grate plate and overflow type partition panel structure are basic identical, just according to different with the perforate mode by the determined perforate radius of the fineness requirement of the performance of the material of grinding and product, the width of the not perforate of overflow type grate plate be generally grinding machine effective radius 15% to 25%, as shown in Figure 3.The structure of blind plate and common blind plate are basic identical, just some near the center perforate, join with the fines outlet of double-deck arc bolter, and the number of perforate is identical with the number of double-deck arc bolter.The arc curve of double-deck arc bolter.Through theory and verification experimental verification, with Archimedes spiral and hyperbola for well, other and this two kinds of curves that curve is approaching, effect also can.The upper strata of double-deck arc bolter is a bolter, the castor hole width of bolter, and according to by the fineness requirement of the performance of the material of grinding and product, fluctuation range is between 1.8 millimeters to 0.5 millimeter, and circulation area is between 25% to 35%.The coarse fodder center discharge port on the overflow type grate plate of rolling back returns little storehouse on the sieve.The lower floor of double-deck arc bolter is a separating plate, and separating plate bears the fine powder material under the sieve, and the center discharge port on blind plate flows into second storehouse.The number of double-deck arc bolter is determined on a case-by-case basis, and its stereochemical structure as shown in Figure 4.Filling bead footpath steel ball avoids using big steel ball in the little storehouse between overflow type partition panel and separating mechanism, and the small size castor hole of the compartment grate plate of protection separating mechanism is difficult for being impacted by abrasive body and making a variation.And effectively utilize the first storehouse big steel ball owing to the small ball that abrasion become, be beneficial to reduce cost.
Tail storehouse material separating device is by outlet grate plate 8 and enclose forward swing angle liner plate 7 near one of this grate plate and form.Shown in Figure 5 is a forward stereogram of swing angle liner plate.The swing angle angle of swing angle liner plate forward is according to by the fineness requirement of the performance of the material of grinding and product, generally between 30 ° to 50 °.Pierce the castor hole behind the little scum and cause the castor hole blocked owing to swing angle liner plate forward can prevent that little forging is worn away to become, thereby the little castor hole that has guaranteed the outlet grate plate is suitable for.Thereby reach material and forge the purpose of separating smoothly.
The use of abrasive body also occupies critical role in the present invention.The present invention in the big forging footpath forging of the second storehouse adapted, in the little forging footpath forging of tail storehouse adapted, has successfully solved the grating problem of abrasive body by at the first storehouse adapted large ball diameter steel ball.
Claims (11)
1, a kind of pulverizer for fine powder is made up of grinding mill barrel, feed end, discharge end, liner plate, partition panel, abrasive body etc.It is characterized in that between first, second two storehouse, a kind of material ball separating device of being made up of overflow type partition panel, Xiao Cang, overflow type grate plate, double-deck arc bolter and blind plate has been installed; A kind of material separating device of being made up of forward swing angle liner plate and little castor hole grate plate has been installed in exit, tail storehouse; And use special grinding body gradation.
2, Super-fine grinder as claimed in claim 1 is characterized in that at the first storehouse adapted large ball diameter steel ball, in the big forging footpath forging of the second storehouse adapted, in the little forging footpath forging of tail storehouse adapted.
3, Super-fine grinder as claimed in claim 1 or 2 is characterized in that the overflow type partition panel in the material ball separating device, and the width of not opening the castor hole is 20% to 40% of a grinding machine effective radius.
4, Super-fine grinder as claimed in claim 3 is characterized in that the overflow type grate plate in the material ball separating device, the width of not opening the castor hole be grinding machine effective radius 15% to 25%.
5, as claim 1,2 or 4 described Super-fine grinders, for well, the approaching J curve effectJ of other and this two kinds of curves is also passable with Archimedes spiral and hyperbola for the arc curve that it is characterized in that the double-deck arc bolter in the material ball separating device.
6, Super-fine grinder as claimed in claim 5, the mesh size that it is characterized in that the double-deck arc bolter in the material ball separating device is between 1.8 millimeters to 0.5 millimeter.
7,, it is characterized in that filling bead footpath steel ball in the little storehouse between overflow type partition panel and the overflow type grate plate as claim 1,2,4 or 6 described Super-fine grinders.
8, as claim 1,2,4 or 6 described Super-fine grinders, the swing angle angle that the material that it is characterized in that the tail storehouse is forged the forward swing angle liner plate in the separator is 30 ° to 50 °.
9, Super-fine grinder as claimed in claim 7, the swing angle angle that the material that it is characterized in that the tail storehouse is forged the forward swing angle liner plate in the separator is 30 ° to 50 °.
10, Super-fine grinder as claimed in claim 8, the castor hole wide that the material that it is characterized in that the tail storehouse is forged the outlet grate plate in the separator is 3.5 millimeters to 5 millimeters.
11, Super-fine grinder as claimed in claim 9, the castor hole wide that the material that it is characterized in that the tail storehouse is forged the outlet grate plate in the separator is 3.5 millimeters to 5 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85106781.6A CN1003283B (en) | 1985-09-09 | 1985-09-09 | Pulverizer for fine powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85106781.6A CN1003283B (en) | 1985-09-09 | 1985-09-09 | Pulverizer for fine powder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85106781A true CN85106781A (en) | 1987-03-11 |
| CN1003283B CN1003283B (en) | 1989-02-15 |
Family
ID=4795283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85106781.6A Expired CN1003283B (en) | 1985-09-09 | 1985-09-09 | Pulverizer for fine powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1003283B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1043014C (en) * | 1990-11-13 | 1999-04-21 | 国家建筑材料工业局合肥水泥研究设计院 | High-yield tube grinder |
| CN1092083C (en) * | 1998-06-03 | 2002-10-09 | 刘容谟 | Superfine tube mill |
| CN100335176C (en) * | 2005-06-30 | 2007-09-05 | 武汉理工大学 | Method for increasing tube mill yield |
| CN102936102A (en) * | 2012-09-20 | 2013-02-20 | 亓俊华 | Cementation curing material and production method thereof, and filling material containing cementation curing material |
| CN104028342A (en) * | 2014-05-23 | 2014-09-10 | 含山县朝霞铸造有限公司 | Crushing drum screen for iron-contained waste residues of electric casting furnace |
| CN104437765A (en) * | 2014-12-08 | 2015-03-25 | 宁夏锦绣实业有限公司 | Special mill for ultrafine fly ash |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101823047A (en) * | 2010-04-19 | 2010-09-08 | 李刚 | Garbage macromolecular substance dry cleaning fertilizer separating screen |
-
1985
- 1985-09-09 CN CN85106781.6A patent/CN1003283B/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1043014C (en) * | 1990-11-13 | 1999-04-21 | 国家建筑材料工业局合肥水泥研究设计院 | High-yield tube grinder |
| CN1092083C (en) * | 1998-06-03 | 2002-10-09 | 刘容谟 | Superfine tube mill |
| CN100335176C (en) * | 2005-06-30 | 2007-09-05 | 武汉理工大学 | Method for increasing tube mill yield |
| CN102936102A (en) * | 2012-09-20 | 2013-02-20 | 亓俊华 | Cementation curing material and production method thereof, and filling material containing cementation curing material |
| CN104028342A (en) * | 2014-05-23 | 2014-09-10 | 含山县朝霞铸造有限公司 | Crushing drum screen for iron-contained waste residues of electric casting furnace |
| CN104437765A (en) * | 2014-12-08 | 2015-03-25 | 宁夏锦绣实业有限公司 | Special mill for ultrafine fly ash |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1003283B (en) | 1989-02-15 |
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