CN1115690A - Automatically-grading roller mill - Google Patents
Automatically-grading roller mill Download PDFInfo
- Publication number
- CN1115690A CN1115690A CN 94104428 CN94104428A CN1115690A CN 1115690 A CN1115690 A CN 1115690A CN 94104428 CN94104428 CN 94104428 CN 94104428 A CN94104428 A CN 94104428A CN 1115690 A CN1115690 A CN 1115690A
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- China
- Prior art keywords
- pressure roller
- high pressure
- cylindrical shell
- millimeters
- mill
- Prior art date
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- 230000006835 compression Effects 0.000 claims abstract description 7
- 238000007906 compression Methods 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000003068 static effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 32
- 238000000227 grinding Methods 0.000 description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000003801 milling Methods 0.000 description 5
- 238000011282 treatment Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052976 metal sulfide Inorganic materials 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
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- Crushing And Grinding (AREA)
Abstract
The said roller mill consists of six parts of cylinder and its driving system, high-pressure roller and its supporter, ore feeder and ore discharger. The cylinder is connected to motor via its driving system and the high-pressure roller inside the cylinder is connected via a support to main shaft connected to the high-pressure roller supporter via compression spring. Material rotating along with the inner wall of cylinder rotating at supercritical speed is extruded and ground while passing through the interval between high-pressure roller and inner wall of cylinder, and it is graded by the strong centrifugal force.
Description
Automatically-grading roller mill relates to a kind of classifying equipoment that grinds of solid material.
Known ore mill is of a great variety, as ball mill, rod mill, pebble plain, autogenous tumbling mill, special-shaped medium ore mill etc.The common feature one of these ore mills is that cylindrical shell is to work under subcritical rotating speed state; The 2nd, adopt different milling mediums in the cylindrical shell and ground, classification.The ore grinding mechanism of these grinding machines is broken nothing more than bump, broken, the shearing-crushing of mill stripping, material rotates under the subcritical rotating speed with cylindrical shell, just break away from cylinder inboard wall and leave downwards when rising to certain altitude, milling medium bump, mill stripping in material and the cylindrical shell are sheared.This impact, mill stripping power, shearing force are applied to material, absorbed few part that the power that is used for material in small, broken bits only accounts for power output by material, major part is used to improve forms such as material potential energy and acoustic energy, strain and consumes, the grinding machine dump temperature rises significantly, and sending huge noise etc. during ore grinding is exactly witness.Therefore the ore grinding shattering spells out: how broken few mill is that material is pulverized the principle that should as far as possible follow.
The combination of ore mill and grader is the mode of the formation closed circuit grinding classification used always, but the unicity of functions of the equipments, it is big that equipment is taken up an area of, configuration is complicated, particularly the transportation of material consumes lot of energy and produces serious wearing and tearing, often occurring various faults in the commercial Application to making, is to cause one of low reason of productivity ratio.The difunctional equipment that a kind of for many years grind grading carries out simultaneously becomes one of direction of researcher's effort.
Existing high pressure rolls, though be to adopt bed of material shattering to design, it is made of two rollers and high-pressure installation and transmission system.Material is given in the gap of two rollers equably, by the high pressure that two rollers produce material is crushed, ore discharge is discharged voluntarily by gravity, but material only obtains once to pulverize in the muck process, as will repeatedly pulverizing, mining other lifting means that ejects can only be promoted and return crushing again, and material is difficult to obtain uniform grain sizes, more do not have grading function.Based on this restriction, the high pressure rolls also only is put into the category of disintegrating machine, and the ore deposit that ejects still need be handled through the ore grinding screening.
The present invention works grinding mill barrel under supercritical speed, grind grading carries out in grinding machine automatically, it is integrated to reach grind grading, and material is pulverized stepless adjustable, the low energy consumption of number of times, lower steel consumption, low noise, high production rate, high efficiency purpose.
Technology contents of the present invention is:
One, forms structure
The present invention partly is made up of cylindrical shell 1, high pressure roller 2, high pressure roller supporting arrangement 3, cylindrical shell transmission system 4, mine-feeding equipment 9, ore discharge device 10 6.One of cylindrical shell 1 is iron ore feeding hole 6, the other end is mine mouth 7, cylindrical shell links by cylindrical shell transmission device and motor 13, high pressure roller is arranged in the cylindrical shell 1, bearing support 5 links up high pressure roller and high pressure roller main shaft 11, the one end connects with the high pressure roller activity, high pressure roller can be in the original place rotation, the other end and main shaft are fixedly connected, the two ends of high pressure roller main shaft are connected on the axle sleeve 14, and this axle sleeve is fixed on the high pressure roller supporting arrangement 3 distance H between high pressure roller outer wall and cylinder inboard wall (shown in Figure 3) by compression spring 12, adjusted by compression spring 12, cylindrical shell is worked under the supercritical speed state.
Two, of the present inventionly do not count principle and technological process
The advantage that the present invention is compared with prior art had
1, grinding efficiency height, energy consumption is low, and the steel consumption is low, and noise is low.
Because grinding machine is to work under supercritical speed, material is uniformly distributed in the grinding mill barrel inwall and rotates with cylindrical shell, there is not the increase and decrease of potential energy, the input work of grinding machine mainly is to make the material compression broken, grinding mill barrel is interior except several pressure rollers, need not any milling medium, the phenomenon that the sort of object, rod bump rod, ball and rod milling shell liner does not exist, can not produce huge noise, can therefore not reduce power consume (reducing by 50% approximately), steel consumption and noise significantly because of friction, mill stripping produce a large amount of heat yet.Thereby obtained the high efficiency of ore grinding.
2, ore grinding is separated in the machine and finishes, and does not need extra closed circuit classifying equipoment.
The super cylindrical shell that faces the speed rotation produces enough big centrifugal force, and for the centrifugal classification of material has been created necessary condition, no milling medium has only the complete centrifugal centrifugal classification that rotates to be material of material to create adequate condition.Automatic classification takes place in ore grinding, and grind grading is finished in a machine automatically.The equipment configuration is compact, and floor space is little, the small investment that same productivity ratio is required.
3, realized the principle of " how broken few mill ", controlled well can to reach the degree of " only broken do not grind ", prevented that effectively crossing of material from pulverizing, product granularity is even, qualified products rate height.
Description of drawings:
Fig. 1 is 1 to be cylindrical shell among front view of the present invention, the figure, and 3 is the high pressure roller supporting arrangement, and 4 is the cylindrical shell transmission system, and 6 is the cylindrical shell iron ore feeding hole, and 7 is the cylindrical shell gape, and 8 is the cylinder bearing device, and 11 is the high pressure roller main shaft, and 13 is driving motor.
Fig. 2 is a vertical view of the present invention.L is that cylindrical shell is long among the figure.
Fig. 3 is an A-A cutaway view of the present invention.2 is high pressure roller among the figure, and 5 is the high pressure roller bearing support, and 9 is mine-feeding equipment, and 10 is the ore discharge device, and 12 are the compression spring, and a is the high pressure roller diameter, and B is a high pressure roller length, and H is high pressure roller and cylinder inboard wall spacing.
Fig. 4 analyses and observe for B-B.14 is axle sleeve among the figure.
Fig. 5 analyses and observe for D-D.
Fig. 6 analyses and observe for E-E.D is a barrel diameter among the figure.
Embodiment one, and the place to use is the ore dressing plant, and material handling is an iron ore, 100 tons for the treatment of capacities/time, product granularity 50% is-200 orders, feed preparation unit size is-20mm.
The technical parameter design:
1, barrel diameter D=3000 millimeter, length L=3000 millimeter;
2, the high pressure roller number is 3, high pressure roller diameter a=750 millimeter, length B=
2200 millimeters;
3, drum speed is 120 rev/mins, 150 kilowatts of powers of motor;
4, cylinder inboard wall adds withstand voltage abrasion-proof backing block, the withstand voltage Wear-resistant Treatment of high pressure roller;
5, bearing support is connected with the high pressure roller bearing;
6, the static spacing H of high pressure roller and cylinder inboard wall is 0, and dynamic space is 30-
80 millimeters.
Embodiment two, and the place to use is a flotation mill, handle multi-metal sulfide, 50 tons for the treatment of capacities/time, product granularity reaches-200 order content greater than 80%, feed preparation unit size-12mm.
The technical parameter design:
1, barrel diameter D=2000 millimeter, the L=2700 millimeter;
2, the high pressure roller number is 3, high pressure roller diameter a=500 millimeter, high pressure roller length L=2000 millimeter;
3, drum speed is 140 rev/mins, 100 kilowatts of powers of motor;
4, cylinder inboard wall adds abrasion-proof backing block, the wear-resisting pressure-resistant treatments of high pressure roller;
5, the static spacing H of high pressure roller and cylinder inboard wall is 0, and dynamic space is the 20-50 millimeter;
6, bearing support is that bearing is connected with high pressure roller.
Claims (3)
1, a kind of automatically-grading roller mill, it is characterized in that: by cylindrical shell 1, high pressure roller 2, high pressure roller supporting arrangement 3, cylindrical shell transmission system 4, mine-feeding equipment 9, ore discharge device 10 6 is partly formed, cylindrical shell links by cylindrical shell transmission device and motor 13, high pressure roller is arranged in the cylindrical shell, bearing support 5 gets up high pressure roller and high pressure roller main shaft 11, one end and high pressure roller flexibly connect (high pressure roller can in the original place rotation), the other end and high pressure roller main shaft are fixedly connected, the two ends of high pressure roller main shaft are fixed on the high pressure roller supporting arrangement 3 by axle sleeve 14 and compression spring 12, cylindrical shell is to work under supercritical speed, and the spacing H of high pressure roller and cylinder inboard wall is adjusted by compression spring 12.
2, automatically-grading roller mill as claimed in claim 1, it is characterized in that: barrel diameter D is that 3000 millimeters, L are 3000 millimeters, the high pressure roller number is 3, diameter a is that 750 millimeters, long B are 2200 millimeters, 120 rev/mins of drum speeds, the static spacing of high pressure roller and cylinder inboard wall is 0, dynamic space is the 30-80 millimeter, and high pressure roller is that bearing is connected with bearing support.
3, automatically-grading roller mill as claimed in claim 1 is characterized in that: barrel diameter D is 2000 millimeters, and long L is 2700 millimeters, the high pressure roller number is 3, diameter a is 500 millimeters, long B is 2000 millimeters, 140 rev/mins of drum speeds, and high pressure roller is that bearing is connected with bearing support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94104428 CN1115690A (en) | 1994-04-27 | 1994-04-27 | Automatically-grading roller mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94104428 CN1115690A (en) | 1994-04-27 | 1994-04-27 | Automatically-grading roller mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1115690A true CN1115690A (en) | 1996-01-31 |
Family
ID=5031580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94104428 Pending CN1115690A (en) | 1994-04-27 | 1994-04-27 | Automatically-grading roller mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1115690A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1081090C (en) * | 1999-12-29 | 2002-03-20 | 昆明理工大学 | Super-critical quick mill |
| CN101439309B (en) * | 2007-11-19 | 2013-04-24 | 郝志刚 | Horizontal type roller mill |
-
1994
- 1994-04-27 CN CN 94104428 patent/CN1115690A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1081090C (en) * | 1999-12-29 | 2002-03-20 | 昆明理工大学 | Super-critical quick mill |
| CN101439309B (en) * | 2007-11-19 | 2013-04-24 | 郝志刚 | Horizontal type roller mill |
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| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |