CN205949264U - Particulate roller picker device with angle sieve piece - Google Patents
Particulate roller picker device with angle sieve piece Download PDFInfo
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- CN205949264U CN205949264U CN201620022516.0U CN201620022516U CN205949264U CN 205949264 U CN205949264 U CN 205949264U CN 201620022516 U CN201620022516 U CN 201620022516U CN 205949264 U CN205949264 U CN 205949264U
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- sieve
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Abstract
The utility model provides the utility model relates to a particulate roller picker device of stairstepping sieve piece, two terminal surfaces of this sieve piece have ladder form structure, the outer circular arc of sieve piece on the surface evenly distributed's little tooth's socket at the sieve outside the piece on the circular arc, this kind of a plurality of sieve pieces that have the step structure form with the horizontal arrangement mode through sieve axle cluster be connected together, constitute sieve axle subassembly no. 1 and sieve axle subassembly no. 2, wherein in the subassembly no. 2 the sieve pieces in sieve epaxial horizontal arrangement position with subassembly no. 1 thickness that sieves the piece that staggers, again subassembly no. 1 and two or two parallel arrangement on the subassembly, neutral gears in the plug -in package no. 1 of the sieve piece symmetry in the subassembly no. 2 between two sieve pieces, the trapezoidal part of the two chaffer screen pieces on trapezoidal part and the subassembly of a subassembly chaffer screen piece will form a plurality of stairstepping rectangle structure sifters in the radial direction parallel with sieving the axle, when this roller bearing sifter of through -put, can ensure that the subsieve fraction granularity reaches more than 98% in the through -put rate below the 10mm, and the material can not make the particulate roller picker produce sifter jam sieve axle card and jump the phenomenon.
Description
Technical field
This utility model is related to the screening plant in a kind of coal handling system, the fine sizing equipment in more particularly, to a kind of circulating fluidized bed boiler coal handling system.
Background technology
Based on the size utilization of separately coal cinder, siftage granularity is generally 20-50mm scope to traditional roller picker, although there being fine sizing function to screen out the material of below 10mm in recent years.But the circulating fluidized bed boiler based on combustion enginnering coal, gangue, coal slime, has the features such as coal impurity is more, moisture is larger and viscosity is higher, because sizer for fine grains siftage granularity sieves qualification rate thoroughly is only 50%-60%.Lead to compass screen surface frequent jams, screening efficiency reduces, plant maintenance, cleaning work amount are larger, coal handling system is exerted oneself reduction.And because sizer for fine grains siftage granularity can not fully meet use requirement, lead to heating surface of circulating fluidized bed boiler abrasion aggravation, boiler operatiopn cycle time, scum pipe and slag cooler frequent jams, deslagging is difficult, safeguards that cleaning work amount is very big.The reason cause the problems referred to above is excessive relevant with circulating fluidized bed boiler matching used particulate roller picker blanking spacer area, the composition version of the screen axis sieve of particulate roller picker is mainly elongate in shape at present, its blanking area size range is 10 × 60-10 × 100mm, its blanking is spaced apart elongate rectangular, still there is part granularity to turn big material in actual applications directly to fall it is impossible to fully meet the requirement to raw meal particle size during circulating fluidized bed boiler burning.
Utility model content
Goal of the invention：In order to solve, the screening efficiency in existing roller picker screening process is low, siftage release mesh is relatively low, coal dust glues the drawbacks such as stifled screen axis sieve defect, a kind of particulate roller bearing screen device with stairstepping sieve is provided, this device can fully meet the qualified requirement of siftage granularity, the screening percentage of release mesh can be made to greatly improve again, the cleaning work amount in running is made to be greatly reduced, reliability of operation is greatly improved.
This utility model is realized in：A kind of particulate roller bearing screen device with stairstepping sieve, two end faces of described sieve have stepped-style structure, it is evenly distributed with opening on the external arc surface of sieve, this multiple sieves with ladder-type structure form are chained together by screen axis in horizontally arranged mode, composition screen axis assembly one and screen axis assembly two, wherein in assembly two, horizontally arranged position on screen axis for the sieve and assembly one stagger the thickness of a sieve, again arranged in parallel with assembly two or two axle for assembly one, neutral between two sieves in the symmetrical plug-in package of sieve in assembly two one, on assembly one, the trapezoidal part of sieve will form multiple stairstepping rectangular configuration compass screen surfaces with the trapezoidal part of sieve on assembly two in the radial direction in parallel with screen axis.Described opening is width 6-10mm, the little profile of tooth notch of depth 4-8mm.On described assembly one the trapezoidal part of sieve with the trapezoidal part of sieve on assembly two in the multiple stairstepping rectangular configuration sizes that in the radial direction formed parallel with screen axis, the widthwise size scope parallel with screen axis is adjustable between 4-10mm, and the longitudinal magnitude range vertical with screen axis is adjustable between 10-30mm.In the subrange that a described sieve on by a sieve on assembly one and assembly two forms, according to the uninterrupted of material, such stairstepping rectangle number can be 2-10.The diameter of its described stairstepping sieve is adjustable between 200-500mm, and sieve thickness is adjustable between 30-120mm；The screen axis spacing of assembly one and assembly two is adjustable between 150-400mm.
This utility model is compared to the good effect that prior art has：
1st, multiple stairstepping rectangular configuration are formed between sieve and sieve, the Task-size Controlling effectively guaranteeing all undersize materials, in below 5-10mm, fully meets the requirement to fuel granularity for the circulating fluidized bed boiler.
2nd, the many edges and corners structure that multistage trapezoidal rectangle material-dropping face manufactures that has being formed between sieve and sieve increased roller meeting in course of conveying for the material, be effectively increased release mesh material appears rate but also with certain precrushing function, the material that be bonded in screen axis surface can also be possessed from clear function simultaneously.
3rd, it is able to ensure that compass screen surface not putty, screen axis does not block jump.
4. novel fine screening plant adopts stairstepping sieve combinative structure, the requirement of siftage release mesh can be fully met, self-cleaning mechanism can be formed again, solve the viscous stifled defect in screening process, the screening percentage of release mesh can reach more than 98%, fully meets the use requirement of follow-up equipment.
Brief description
Fig. 1 is the structural representation of this utility model stairstepping sieve monolithic.
Fig. 2 is this utility model ladder sieve cross-sectional view.
Fig. 3 is this utility model stairstepping sieve screen axis assembly one structural representation.
Fig. 4 is this utility model stairstepping sieve shaft assembly two structural representation.
Fig. 5 is this utility model stairstepping sieve shaft assembly one and assembly two structural representation arranged evenly in front and back.
Fig. 6 is the structural representation of this utility model second embodiment.
Specific embodiment
As Fig. 1-5 understands that the shape that the sieve of particulate roller picker is designed to as shown in the structural representation of Fig. 1 and Fig. 2 this utility model monolithic understands that two end faces of sieve 2 have stepped-style structure，It is designed with opening 6-10mm in sieve 2 external arc simultaneously，The little teeth groove of depth 4-8mm，Such little teeth groove is uniformly distributed in sieve 2 external arc，Quantity is between 6-20，There is hole in the middle of sieve 2，Kong Zhongyou is used for the keyway 3 fixing with screen axis 4，The 8-20 this sieve 2 with ladder-type structure form is chained together by screen axis 4 in horizontally arranged mode，On screen axis 4, two ends are provided with bearing block 1，On screen axis 4, one end is provided with shaft coupling 5 and motor reducer 6 composition screen axis assembly one A，Again 8-20 is formed screen axis assembly two B by the sieve 2 of ladder-type structure form to be chained together by screen axis 4 in the way of horizontally arranged，In assembly two B, horizontally arranged position on screen axis 4 for the sieve 2 and assembly one A stagger the thickness of a sieve 2，The sieve 2 of Fig. 1 or Fig. 2 is radially symmetrically cutd open into 2 half simultaneously，It is separately mounted to screen axis 4 two end of assembly two B，Again arranged in parallel with assembly two B, bis- axles for assembly one A，Neutral between two sieves 2 in symmetrical plug-in package one A of sieve 2 in assembly two B，And it is arranged evenly before and after in the way of Fig. 5，The arrangement mode of recirculation assembly one A and assembly two B，Just become the compass screen surface of whole particulate roller picker.Such assembly one A designing and assembly two B in tandem，On assembly one A, the trapezoidal part of sieve will form multiple stairstepping rectangular configuration with the trapezoidal part of sieve on assembly two B in the radial direction in parallel with screen axis 4，This sieve 2 and sieve 2，The stairstepping rectangular dimension that sieve 2 is formed with screen axis 4，The widthwise size scope parallel with screen axis 4 is adjustable between 4-10mm，The longitudinal magnitude range vertical with screen axis 4 is adjustable between 10-30mm，The quantity of such staged rectangle blanking area，In a subrange being made up of a sieve 2 on the sieve 2 and assembly two B on assembly one A，Uninterrupted according to material can be 2-10，The diameter of stairstepping sieve 2 is adjustable between 200-500mm simultaneously，Sieve 2 thickness is adjustable between 30-120mm，The distance between axles of assembly one A and assembly two B is adjustable between 150-400mm，Thus reduce the effective area that single siftage falls to greatest extent，Also ensure that total effective siftage area change is little simultaneously，The granularity therefore ensuring that siftage is in below 10mm.The flow of material is not affected by big simultaneously.This utility model sieve adopts forge piece of step type structure distribution form，Its single coal breakage spacer area only has 8 × 20mm size，Greatly reduce single coal breakage spacer area，The coal cinder percentage being less than 10mm granularity in siftage is increased substantially，Adopt the progressive version of ladder type simultaneously，It is effectively increased the coal breakage area of whole siftage again，Be conducive to passing through of coal stream，In addition little teeth groove is set on the outer arc of sieve 2，The roller meeting of ut between 10-30mm for the granularity effectively can be increased on sifting bed surface，Prevent from concentrating on the transition between screen axis and screen axis because of little particle coal cinder，Cause gathering materials herein，The many edges and corners structure with multistage trapezoidal rectangle blanking area formation simultaneously being formed between sieve and sieve increased roller meeting in course of conveying for the material，Be effectively increased release mesh material appears rate but also with certain precrushing function，The material being bonded in screen axis surface can also be possessed from clear function simultaneously.
Understand shown in second embodiment structural representation of the present utility model as shown in Figure 6, the diameter sieve 2 relatively small with thickness is combined by above-mentioned form, to meet the screening arrangement form of the less material of siftage flow, this embodiment is less than the above-mentioned embodiment material area that sieves.When the diameter changing sieve and thickness and two screen axis spacing, just become the embodiment shown in diagram 6.
Claims (5)
1. a kind of particulate roller bearing screen device with stairstepping sieve it is characterised in that：Two end faces of described sieve have stepped-style structure, it is evenly distributed with opening on the external arc surface of sieve, this multiple sieves with ladder-type structure form are chained together by screen axis in horizontally arranged mode, composition screen axis assembly one and screen axis assembly two, wherein in assembly two, horizontally arranged position on screen axis for the sieve and assembly one stagger the thickness of a sieve, again arranged in parallel with assembly two or two axle for assembly one, neutral between two sieves in the symmetrical plug-in package of sieve in assembly two one, on assembly one, the trapezoidal part of sieve will form multiple stairstepping rectangular configuration compass screen surfaces with the trapezoidal part of sieve on assembly two in the radial direction in parallel with screen axis.
2. device as claimed in claim 1 it is characterised in that：Described opening is width 6-10mm, the little profile of tooth notch of depth 4-8mm.
3. device as claimed in claim 1 it is characterised in that：On described assembly one the trapezoidal part of sieve with the trapezoidal part of sieve on assembly two in the multiple stairstepping rectangular configuration sizes that in the radial direction formed parallel with screen axis, the widthwise size scope parallel with screen axis is adjustable between 4-10mm, and the longitudinal magnitude range vertical with screen axis is adjustable between 10-30mm.
4. device as claimed in claim 1 it is characterised in that：In the subrange that a described sieve on by a sieve on assembly one and assembly two forms, according to the uninterrupted of material, such stairstepping rectangle number can be 2-10.
5. device as claimed in claim 1 it is characterised in that：The diameter of the described multiple sieves with hierarchic structure shape is adjustable between 200-500mm, and sieve thickness is adjustable between 30-120mm；The screen axis spacing of assembly one and assembly two is adjustable between 150-400mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620022516.0U CN205949264U (en) | 2016-01-11 | 2016-01-11 | Particulate roller picker device with angle sieve piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620022516.0U CN205949264U (en) | 2016-01-11 | 2016-01-11 | Particulate roller picker device with angle sieve piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205949264U true CN205949264U (en) | 2017-02-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620022516.0U Expired - Fee Related CN205949264U (en) | 2016-01-11 | 2016-01-11 | Particulate roller picker device with angle sieve piece |
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| CN (1) | CN205949264U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106076834A (en) * | 2016-07-06 | 2016-11-09 | 中国神华能源股份有限公司 | Screen tray and roller picker for roller picker |
-
2016
- 2016-01-11 CN CN201620022516.0U patent/CN205949264U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106076834A (en) * | 2016-07-06 | 2016-11-09 | 中国神华能源股份有限公司 | Screen tray and roller picker for roller picker |
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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: 20170215 Termination date: 20210111 |