CN1003283B - Pulverizer for fine powder - Google Patents
Pulverizer for fine powder Download PDFInfo
- Publication number
- CN1003283B CN1003283B CN85106781.6A CN85106781A CN1003283B CN 1003283 B CN1003283 B CN 1003283B CN 85106781 A CN85106781 A CN 85106781A CN 1003283 B CN1003283 B CN 1003283B
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- storehouse
- plate
- little
- bolter
- grinding
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Abstract
The present invention relates to a novel extra-fine powder grinding machine. A novel material ball separating device and a material separating device are arranged in the grinding machine, so the levels of material balls in three bins are adjusted, and the effect of grinding extra-fine powder is achieved. The performances of the grinding machine are good, which is proved by industrial tests. Under the condition of open flow of the first level, for the grinding effect on various kinds of cement, the specific surface area can achieve 5500cm <2>/g, and for the clinker-free cement of powder coal ash, the specific surface area can achieve 7000 to 8000cm <2>/g. The present invention has the characteristics of simple structure, simple machining, reasonable process flow of the grinding machine, obvious power-saving effect, etc.
Description
The present invention is a kind of grinding machine, is mainly used in material is carried out fine-grinding, can be widely used in 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 behind the 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 the common tube grinding machine to be difficult to satisfy the demand.After material is milled to certain fineness, tend to occur sizing, aggregation phenomenon, influence the operate as normal of grinding machine.Prior art can be with reference to U.S. Pat-3964717.Between first storehouse and second storehouse of normal mill, a little storehouse is set.Little storehouse is connected with first storehouse by common partition panel, is connected with second storehouse by blind plate.In little storehouse, use central dividing plate that little storehouse is divided into former and later two half storehouses, on central dividing plate,, former and later two half storehouses in little storehouse are communicated with away from the position perforate of grinding mill barrel.In the Qian Bancang in little storehouse (promptly near the first storehouse part), do not use any raising material unit, make that preceding half storehouse is identical with the first storehouse material level.In the later half storehouse in little storehouse (promptly near the second storehouse part), raising material unit is housed, by these raising material units with the mass transport in the later half storehouse in second storehouse.By between first, second two storehouse, little storehouse being set, can make the material in first storehouse keep a stable charge level, central dividing plate in the little storehouse is owing to away from the just perforate (promptly using the overflow type porous plate) of grinding mill barrel position, make that material can obtain comparatively effectively grinding in first storehouse.Between little storehouse and second storehouse, adopt the blind plate of center drilling to be connected, make the abrasive body in second storehouse be difficult for oppositely scurrying in the little storehouse, and in the later half storehouse in little storehouse, use raising material unit, make material to enter smoothly in second storehouse, and, even there is a small amount of abrasive body to scurry into the later half storehouse in little storehouse by second storehouse, also can make it return second storehouse, guarantee no abrasive body state in the little storehouse by raising material unit.
Though above-mentioned grinding machine can make the interior grinding process of mill comparatively stable, open under the stream situation in one-level and obviously can not solve the fine-grinding problem.Particularly little storehouse can not realize the thickness of material is separated behind first storehouse, makes that entering the material in second storehouse has identical fineness with the material that is entered little storehouse by first storehouse.When using above-mentioned grinding machine that material is carried out fine-grinding (as pulverizing cement to 3400cm
2When/g is above), comparatively serious gathering, glue and roll into a ball a phenomenon just appears in material in grinding machine, hindered the carrying out of fine-grinding.And the unit power consumption of grinding material 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,, can cause the material modification,, can cause gypsum dehydration, form the cement false set phenomenon as pulverizing cement because temperature is too high in the mill.In addition, above-mentioned grinding machine can be regulated (can make the grinding state be transferred to the best like this) for the position of porous plate in the middle of keeping, and causes fixing and assemble all seeming complicated.
The objective of the invention is to make a kind of new-type one-level and open the stream grinder for extra thin tubes, when requiring pulverizing cement, specific area can reach 5500cm
2/ g, during pulverizing flyash clinker-less cement, specific area can reach 7000 to 8000cm
2/ g, thus with the technological process that one-level is opened flow pattern, it is high-strength, fast hard to satisfy production, even the production of Ultrastrength cement.And require the processing of grinding machine equipment simple, easy for installation, power consumption is low, and material is economized, to overcome the deficiencies in the prior art.
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 the common tube grinding machine when carrying out the fine-grinding operation, the material of existence gathers, the pernicious grinding problem of sticky medium, liner and calculation plate.Concrete way is: first, between second liang of storehouse, a little storehouse is installed as material ball separating device, little storehouse uses the overflow type partition panel to be connected with first storehouse, little storehouse uses the perforate blind plate to be connected with second storehouse, use overflow type to calculate plate in the inside in little storehouse little storehouse is divided into two halves storehouse, front and back, preceding half storehouse uses bead footpath steel ball as abrasive body, later half storehouse then is equipped with several double-deck arc bolters, it mainly acts on is that material to the later half storehouse that enters little storehouse sieves, and the thin material under will sieving sends into second storehouse, and the thick material on the sieve then returns the Qian Bancang in little storehouse; Exit in the tail storehouse, installed a kind of by forward the material forging separator that plate is formed is calculated in swing angle liner plate and little calculation hole, wherein forward the swing angle liner plate adds the blend stop of making a protrusion on common liner plate, stops up the calculation hole in order to block the abrasive body that is worn away into little scum.In addition, adopt the large ball diameter steel ball, adopt the big footpath forging of forging in second storehouse, use little forging footpath forging in the tail storehouse,, make one-level drive the stream tube mill and reached tangible fine-grinding effect and good economic benefit by the retrofit work of these three aspects in first storehouse.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 various types of fine-grinding equipment, technical-economic index of the present invention 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.Simultaneously, owing to be to adopt to open stream technology, the present invention has also that auxiliary equipment is few, flow process 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
2More than/the 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, the present invention also produces than F.L.Smith, and Kang Bideng (Combidan) mill that is used for fine-grinding is simple in structure, easy to utilize, especially also is suitable for the mill transformation to old factory.
The present invention not only when producing the high thin product of high thin cement or other, has good technology economic, and cement or other products for producing general fineness also can improve unit-hour output, reduce the actual power loss of main frame unit power consumption and grinding machine.
Most preferred embodiment of the present invention can illustrate in conjunction with the following drawings.
Fig. 1 is the structural representation of novel grinder for extra thin tubes of the present invention.
Fig. 2 is connected employed overflow type partition panel schematic diagram for little storehouse of the present invention with first storehouse.
Fig. 3 calculates the plate schematic diagram for the overflow type that uses in the little storehouse of the present invention.
The double-deck arc bolter schematic perspective view of Fig. 4 for using in the little storehouse of the present invention.
Fig. 5 is the schematic perspective view of the forward swing angle liner plate of exit, tail of the present invention storehouse use.
At first referring to Fig. 1, in one-level is opened stream multi-compartment tube grinding mill barrel 1, a little storehouse is set as material ball separating device between first, second two storehouse, little storehouse is connected with first storehouse by overflow type partition panel 2, and little storehouse is connected with second storehouse by perforate blind plate 5.In inside, little storehouse, use overflow type to calculate plate 3 it is divided into former and later two half storehouses.Qian Bancang in little storehouse is equipped with bead footpath steel ball, and several double-deck arc bolters 4 are housed in the later half storehouse in little storehouse.In the position of the close grinding machine axis in the later half storehouse in little storehouse, utilize overflow type calculation plate 3 and perforate blind plate 5 to be fixed with a circular cylinder body 6, near near second storehouse, on the grinding machine axis direction, being equipped with ventilates calculates plate 7 in circular cylinder body 6.Wherein: the structure of overflow type partition panel 2 as shown in Figure 2, it is near not perforate on the annular circle of grinding mill barrel with common partition panel, 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; the material ball ratio that prevents first storehouse is along with being improved and reduce by the specific area of the material of grinding; make output unaffected; simultaneously; the calculation hole that this partition panel can also protect overflow type to calculate plate 3 is not subjected to the impact wear of big steel ball and is out of shape; the structure of overflow type calculation plate 3 as shown in Figure 3; the structure of itself and overflow type partition panel 2 is basic identical; just according to different by determined perforate radius of the fineness requirement of the performance of the material of grinding and product and perforate mode, overflow type calculate plate 3 do not open the width of calculating the hole be generally grinding machine effective radius 15% to 25%.The structure of perforate blind plate 5 and common blind plate are basic identical, just some near the center perforate, as the center discharge port of blind plate, are connected with the fines outlet of double-deck arc bolter 4, and the number of perforate is identical with the number of double-deck arc bolter 4.The perspective view of double-deck arc bolter 4 as shown in Figure 4, it be the pair of lamina structure, the upper strata is a bolter, lower floor is a separating plate, bolter sieves the material that is entered the later half storehouse in little storehouse by overflow type calculation plate 3.Thin material is fallen on the separating plate of lower floor by the calculation hole on the sieve, flow into second storehouse through the center discharge port on the perforate blind plate 5 again, and the overflow type of rolling back of the thick material on the sieve is calculated center discharge port (not drawing among Fig. 1, referring to Fig. 3) on the plate 3, returns preceding half storehouse, little storehouse.The arc curve of 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 calculation hole width on the bolter is 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%.In addition, the number of double-deck arc bolter is determined on a case-by-case basis, and is the amount doesn't matter, and it can use methods such as common welding, flange connection to be fixed on the circular cylinder body 6 with being connected of grinding machine, it is together rotated with grinding machine.Qian Bancang in little storehouse is filled with bead footpath steel ball, removes the small size calculation hole that can protect overflow type to calculate plate 3 and is difficult for being impacted by abrasive body and making a variation, and can also effectively utilize the first storehouse big steel ball owing to the small ball that abrasion become, and helps reducing cost.
The material in exit, tail storehouse is forged separator by going out to do a sum orally plate 9 and enclose forward swing angle liner plate 8 near one of the plate 9 that goes out to do a sum orally and form.Forward the schematic perspective view of swing angle liner plate 8 as shown in Figure 5, it is to add the blend stop that is shaped on a projection on common liner plate.In the rotary course of grinding machine, forward the blend stop that protrudes on the swing angle liner plate can be pushed the little scum that is worn away by little forging to the upstream of grinding machine, making it can not be near going out to do a sum orally plate 9, solved that little scum pierces out the little calculation hole of mental arithmetic plate 9 and the calculation hole plug problem that causes, guaranteed thus the to do a sum orally little calculation hole of plate 9 is suitable for, and has also reached material simultaneously and has forged the purpose of separating.In addition, according to by the fineness requirement of the material performance of grinding and product, forward the swing angle angle of swing angle liner plate is between 30 ° to 50 °.
At last, reach fine-grinding, the use of abrasive body also occupies critical role, the present invention is by 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, and use bead footpath steel ball in preceding half storehouse in little storehouse, successfully solved the grating problem of abrasive body, realized opening under the stream situation, carried out the purpose of fine-grinding in one-level.
Claims (6)
1, a kind of grinder for extra thin tubes is by grinding mill barrel 1, compositions such as feed end, discharge end; First, a little storehouse is set between second liang of storehouse, little storehouse uses partition panel to be connected with first storehouse, little storehouse uses blind plate to be connected with second storehouse, the inner overflow type central dividing plate that uses is divided into former and later two half storehouses with little storehouse in little storehouse, and circular cylinder body 6 is equipped with near the grinding machine axial location in the later half storehouse in little storehouse, ventilation grate plate 7 is housed on it, afterbody at grinding machine is a discharge end, it is characterized in that little storehouse is connected employed partition panel with first storehouse be overflow type partition panel 2, little storehouse is connected employed blind plate with second storehouse be perforate blind plate 5, the partition panel that uses in the middle of little storehouse is that overflow type is calculated plate 3, and, first half in little storehouse, adapted bead footpath steel ball is as abrasive body, later half storehouse in little storehouse, double-deck arc bolter 4 is housed, the upper strata of double-deck arc bolter 4 is a bolter, lower floor is a separating plate, the material that enters later half storehouse, little storehouse via overflow type calculation plate 3 sieves by bolter, the interface of thick material by bolter and overflow type calculation plate 3 returns half storehouse before the little storehouse, thin material is then logical to be fallen on the separating plate, interface by separating plate and perforate blind plate 5 enters second storehouse, in addition, double-deck arc bolter 4 uses common welding and flange to be connected and fixed on the circular cylinder body 6, exit in the tail storehouse, then be equipped with by little calculation hole go out to do a sum orally plate 9 with enclose the material that swing angle liner plate 8 forward formed near one of the plate 9 that goes out to do a sum orally and forge separator, wherein forward swing angle liner plate 8 is to add the system blend stop of projection together on common liner plate, stop the little scum that wears away by abrasive body to stop up out the little calculation hole of mental arithmetic plate 9 by blend stop, and, use the large ball diameter steel ball in first storehouse, use the big footpath forging of forging in second storehouse, use little forging footpath forging in the tail storehouse.
2, for well, the approaching J curve effectJ of other and this two kinds of curves is also passable with Archimedes spiral and hyperbola for tube mill as claimed in claim 1, the arc curve that it is characterized in that double-deck arc bolter 4.
3, tube mill as claimed in claim 1, the calculation hole width that it is characterized in that double-deck arc bolter 4 is between 1.8 millimeters to 0.5 millimeter.
4, tube mill as claimed in claim 1, the width that it is characterized in that not perforate on the overflow type partition panel 2 be grinding machine effective radius 20% to 40%.
5, tube mill as claimed in claim 1, it is characterized in that overflow type calculate on the plate 3 do not open the width of calculating the hole be grinding machine effective radius 15% to 25%.
6, tube mill as claimed in claim 1, the swing angle angle that it is characterized in that the forward swing angle liner plate in exit, tail storehouse is 30 ° to 50 °.
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 CN85106781A (en) | 1987-03-11 |
| CN1003283B true 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 (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 |
Families Citing this family (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 |
-
1985
- 1985-09-09 CN CN85106781.6A patent/CN1003283B/en not_active Expired
Cited By (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN85106781A (en) | 1987-03-11 |
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