CN203648850U - Double-main-shaft multi-cage ultrafine powder grading machine - Google Patents
Double-main-shaft multi-cage ultrafine powder grading machine Download PDFInfo
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- CN203648850U CN203648850U CN201320843406.7U CN201320843406U CN203648850U CN 203648850 U CN203648850 U CN 203648850U CN 201320843406 U CN201320843406 U CN 201320843406U CN 203648850 U CN203648850 U CN 203648850U
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- main shaft
- cage
- cage body
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Abstract
The utility model discloses a double-main-shaft multi-cage ultrafine powder grading machine, particularly relates to an ultrafine powder grading machine capable of realizing efficient and energy-saving ultrafine powder screening and grading, and aims to solve the technical problems that the conventional ultrafine powder grading machine is poor in supporting stability and coarse particles are easily mixed into graded fine powder. The double-main-shaft multi-cage ultrafine powder grading machine comprises a machine body and main shafts, wherein the main shafts are driven by a motor to operate; the two ends of each main shaft are connected in series with cage bodies; a stable strong vortex field is formed between the outer sides of the cage bodies and the shell wall of the machine body; powder produced by a pulverizing system enters the machine body through a lower guide barrel; the fine powder in the machine body enters the cage body under suction force of a fan and the action of the strong vortex field on the outer sides of the cage bodies; the fine powder in the cage bodies enters a middle circumferential air guide barrel along with air flow, is discharged through an upper connection pipe at the upper part of the middle circumferential air guide barrel and then is collected. Through the adoption of the structure, resonances or other vibration phenomena which affect the grading precision are avoided, and the grading fineness can be improved; the service life cannot be shortened under the influence of ultrafine dust.
Description
Technical field
The utility model relates to a kind of superfine powder screening plant, is specifically related to a kind of two many cages of main shaft cascaded structures that adopt, and can realize the superfine powder grader of energy-efficient superfine powder sieving and grading.
Background technology
Existing superfine powder grader is mostly vortex classifier, its structure is that motor drives the main shaft being bearing on rolling bearing by belt pulley, turbine is connected to one end of main shaft in the horizontal direction with cantilevered fashion, adopt turbine High Rotation Speed to produce powerful centrifugal force field and effectively disperse and classification.Such grader has following shortcoming: because turbine is cantilever displacement structure, and High Rotation Speed, supporting poor stability, the vibration of axle system is larger, has affected grading effect; Block bearing is easily sneaked into fine dusts and is worn and torn, and the life-span is lower; Gapped between turbine end face and cylindrical shell, coarse granule is easily sneaked in the fine powder after classification; Turbine adopts in the cage-shaped structure that is radially evenly arranged multi-disc blade, and for avoiding welding deformation and guaranteeing good dynamic balancing, the welding process requirement of blade is higher.
Utility model content
The technical problems to be solved in the utility model is existing superfine powder grader supporting poor stability, the vibration of axle system is larger, life-span is lower, coarse granule is easily sneaked in the fine powder after classification, the welding process requirement of blade is higher, provide a kind of combined critical speed high, the block bearing life-span is not subject to the impact of powder, and unassorted powder cannot enter two many cages of main shaft superfine powder graders of graded region by the gap between cage body and cylindrical shell.
For achieving the above object, the utility model adopts following technical proposals: a kind of two many cages of main shaft superfine powder graders, comprise body and be arranged on the main shaft in body, main shaft is turned round by driven by motor, the two ends series connection of main shaft is provided with the cage body with main shaft rotation, between the external side of cage and body shell wall, form a stable strong vortex field, the powder that scratch system produces enters body by lower guide cylinder, fine powder in body enters cage body under blower fan draft and the strong vortex field effect of the external side of cage, fine powder in cage body along with air-flow enters together middle circumference gas cylinder the upper connecting tube by middle circumference gas cylinder top discharge, collect.
Described main shaft is two main shafts, and two main shafts are cross square crossing and are distributed in upper and lower two planes, are supported by the rolling bearing at two ends, and rolling bearing is arranged on bearing block.
Described cage body comprises cage body seat, and cage body seat two ends are provided with limb, have blade groove on limb, and blade two ends are inlayed and are fixed on the blade groove of limb, forms cage body.
The powder delivery direction of described cage body seat is provided with sealing exhaust impeller.
Described motor is variable-frequency motor, and motor drives main shaft rotation by belt pulley.
Described body is arranged on bracket.
Adopt the utility model after said structure, the critical speed of cage axon system is higher, the oscillation phenomenon that can not produce resonance or other influences effectiveness of classification in the range of speeds requiring in superfine powder classification, lengthens with this understanding cage body and can improve output, improves rotating speed and can improve classification fineness; Be distributed in axle and be the block bearing at two ends not in particle classifying region, can not be subject to the impact of superfine powder dust and reduce its service life; The negative pressure that sealing exhaust impeller forms stoped unassorted powder from cage body and gap between circumference gas cylinder enter graded region; Blade is taked mosaic texture, and shafting dynamic balance is functional.
Accompanying drawing explanation
Fig. 1 is combination sectional structure schematic diagram of the present utility model.
Fig. 2 is broken section structural representation of the present utility model.
Fig. 3 is plan structure schematic diagram of the present utility model.
The specific embodiment
As shown in Figure 1 to Figure 3, the utility model comprises body 1 and is arranged on the main shaft 2 in body 1, main shaft 2 drives running by motor 6, the two ends series connection of main shaft 2 is provided with the cage body 20 with main shaft rotation, between cage body 20 outsides and body 1 shell wall, form a stable strong vortex field, the powder that scratch system produces enters body 1 by lower guide cylinder 7, fine powder in body 1 enters cage body under blower fan draft and the 20 outside strong vortex field effects of cage body, fine powder in cage body 20 along with air-flow enters together middle circumference gas cylinder 3 upper connecting tube 4 by middle circumference gas cylinder 3 tops discharge, collect.Middle circumference gas cylinder 3 is distributed in the qualified powder receiving and screening between left and right cage body 20.
Described main shaft 2 is two main shafts, and two main shafts are cross square crossing and are distributed in upper and lower two planes, are supported by the rolling bearing 13 at two ends, and rolling bearing 13 is arranged on bearing block 14.
Described cage body 20 comprises cage body seat 12, cage body seat 12 two ends are provided with limb 11, limb 11 is bolted on cage body seat 12, on limb 11, have blade groove, blade 10 two ends are inlayed and are fixed on the blade groove of limb 11, form cage body 20, each one of cage body seat 12 left and right on every main shaft, and be arranged on respectively the two ends of main shaft with series system, rotate with main shaft.
The powder delivery direction of described cage body seat 12 is provided with sealing exhaust impeller 9.Along with cage body seat 12 rotates to form negative pressure, prevent unassorted powder from cage body 20 and gap between circumference gas cylinder 3 enter graded region.
Described motor 6 is variable-frequency motor, and motor 6 drives main shaft 2 to rotate by belt pulley 5.According to the speed of different materials and fineness requirement adjustment motor 6.
Described body 1 is arranged on bracket 8.Bracket 8 is used for connecting the body of body 1 of the present invention and scratch system; Lower guide cylinder 7 is to 1 accurate positioning action of body.
Specific implementation process of the present utility model is as follows:
When work, motor 2 motions drive belt pulley 5, and belt pulley 5 drives lower main axis 2 and then 20 rotations together of drive left and right cage body on grader.Due to the high-speed rotation of cage body 20, between cage body 20 outsides and body 1 shell wall, form a stable strong vortex field, material is carried to by ascending air near the cage body 20 of rotation under blower fan draft effect, the strong vortex field that the cage body 20 for classification of rotation produces is mated more rationally with ascending air, make in cutting the fine powder below particle diameter be carried by air-flow and enter cage body 20 inside, fine powder is along with air-flow is discharged from the upper connecting tube 4 on top together, and be collected as finished product, the movement locus of qualified fine powder is as shown in Figure 1.Be greater than on a small quantity the meal that cuts particle diameter in vortex field because the centrifugal force being subject to is larger, thrown to body 4 shell walls, under the effect of gravity, settle down along body shell wall.The classification of powder has utilized centrifugal force that particle is subject to and the equilibrium relation of the drag force of air-flow to particle in principle, depend primarily on the power of vortex field and the size of an interior air-flow, vortex field is by the rotating to form of cage body, therefore can obtain accurate classification by the rotating speed and the import air quantity that regulate cage body.
Claims (6)
1. two many cages of main shaft superfine powder grader, it is characterized in that: comprise body (1) and be arranged on the main shaft (2) in body (1), main shaft (2) drives running by motor (6), the two ends series connection of main shaft (2) is provided with the cage body (20) with main shaft rotation, between cage body (20) outside and body (1) shell wall, form a stable strong vortex field, the powder that scratch system produces enters body (1) by lower guide cylinder (7), fine powder in body (1) enters cage body under blower fan draft and the strong vortex field effect of cage body (20) outside, fine powder in cage body (20) is middle circumference gas cylinder (3) upper connecting tube (4) discharge by middle circumference gas cylinder (3) top along with air-flow enters together, collect.
2. according to claim 1 pair of many cages of main shaft superfine powder grader, it is characterized in that: described main shaft (2) is two main shafts, two main shafts are cross square crossing and are distributed in upper and lower two planes, by rolling bearing (13) supporting at two ends, rolling bearing (13) is arranged on bearing block (14).
3. according to claim 1 pair of many cages of main shaft superfine powder grader, it is characterized in that: described cage body (20) comprises cage body seat (12), cage body seat (12) two ends are provided with limb (11), limb has blade groove on (11), blade (10) two ends are inlayed and are fixed on the blade groove of limb (11), form cage body (20).
4. according to claim 3 pair of many cages of main shaft superfine powder grader, is characterized in that: the powder delivery direction of described cage body seat (12) is provided with sealing exhaust impeller (9).
5. according to claim 1 pair of many cages of main shaft superfine powder grader, is characterized in that: described motor (6) is variable-frequency motor, and motor (6) drives main shaft (2) rotation by belt pulley (5).
6. according to claim 1 pair of many cages of main shaft superfine powder grader, is characterized in that: described body (1) is arranged on bracket (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320843406.7U CN203648850U (en) | 2013-12-20 | 2013-12-20 | Double-main-shaft multi-cage ultrafine powder grading machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320843406.7U CN203648850U (en) | 2013-12-20 | 2013-12-20 | Double-main-shaft multi-cage ultrafine powder grading machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203648850U true CN203648850U (en) | 2014-06-18 |
Family
ID=50915290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320843406.7U Expired - Fee Related CN203648850U (en) | 2013-12-20 | 2013-12-20 | Double-main-shaft multi-cage ultrafine powder grading machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203648850U (en) |
-
2013
- 2013-12-20 CN CN201320843406.7U patent/CN203648850U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20211220 |