CN204842208U - Wheeled air current selection powder machine crouches - Google Patents
Wheeled air current selection powder machine crouches Download PDFInfo
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- CN204842208U CN204842208U CN201520264658.3U CN201520264658U CN204842208U CN 204842208 U CN204842208 U CN 204842208U CN 201520264658 U CN201520264658 U CN 201520264658U CN 204842208 U CN204842208 U CN 204842208U
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Abstract
The utility model belongs to the technical field of the solid is selected separately with solid particle, a take the wheeled air current selection powder machine crouches of water conservancy diversion baffle is disclosed, contain the middlings and collect section (1), air classification section (2), sorting room (3), divide driving cone (4), feeding baffle (5), feed inlet (6), water conservancy diversion baffle (7), air intake (8), middlings export (9) etc.. Characterized by: feed inlet (6) lie in and select separately room (3) upper portion, and feed inlet (6) below has feeding baffle (5), divide driving cone (4) horizontal installation in selecting separately room (3), are provided with water conservancy diversion baffle (7) selecting separately room (3) lower part. Through the effect of water conservancy diversion baffle (7), increased to the dispersion of the directional guide of air current, granule powder with to the elutriation of farine to show the sorting precision that has improved selection powder machine, still reducing sorting tolerance simultaneously, having advantages such as the manufacturing is simple, the investment economizes, select separately the precision height, economic benefits is good.
Description
Technical field
The utility model belongs to solid and solid particle separation technology field, is specifically related to a kind of sleeping wheeled air-flow powder concentrator for powder granule sorting.
Background technology
Powder concentrator is a kind of equipment granule materials being divided into some grade product by its granularity or density size, has a wide range of applications in industries such as chemical industry, metallurgy, building materials, food.For the extensive sorting of the powder material of size below 150 microns, industrial normal employing is with the centrifugal air-flow powder concentrator of rotation of worm gear (or claiming grading wheel).This kind of powder concentrator, the mounting means according to grading wheel is distinguished, and mainly contains vertical wheel formula (grading wheel is vertically installed) and sleeping wheeled (installations of grading wheel level) two kinds, wherein vertical wheel formula air-flow powder concentrator Technical comparing maturation, apply more.Sleeping wheeled air-flow powder concentrator is then a kind of relatively novel powder concentrator, and its grading wheel level is installed, and grading wheel two ends all adopt bearings, have dynamic equilibrium problems and easily solve, vibrate little, long service life, installation, maintenance, maintains the advantages such as easy; Its shortcoming mainly effectiveness of classification is not high.
For overcoming the not high defect of sleeping wheeled air-flow powder concentrator effectiveness of classification, Chinese patent ZL03220473.6 improves material-strewing device, the dropping system of horizontal rotor (i.e. grading wheel) bottom, with special fan to material-strewing device air feed, strengthen the dispersion to material and elutriation, to improve the performance of equipment, but device structure is complicated, the volume that takes up room is large.Fine powder outlet is connected with grading wheel and reaches outside the wall of classification chamber by ZL200520080497.9, by sealed bearing, this outlet is supported on the sidewall of classification chamber again, to provide a kind of grading wheel fine powder exit seal performance good, enter the powder concentrator of fine powder outlet without coarse-grained material.This patent formula effectively can solve air-flow " short circuit ", " running thick " problem between grading wheel end and fine powder outlet, but when fine powder outlet size is larger, the difficulty implemented and investment will significantly increase, and not relate to the problem solving meal product " folder is thin ".
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides the sleeping wheeled powder concentrator that a kind of structure is simple, effectiveness of classification is high.
For achieving the above object, the technical solution of the utility model is: a kind of sleeping wheeled air-flow powder concentrator with flow apron, be made up of separation chamber, charging baffle plate, grading wheel, flow apron, pneumatic jig section, meal collection section etc., it is characterized in that: charging aperture is positioned at separation chamber top, charging baffle plate is positioned at below charging aperture; Grading wheel level is arranged in separation chamber, and the rotating shaft of grading wheel one end reaches outside separation chamber and is connected with drive motors, and the grading wheel other end connects with discharge pipe (being also fine powder outlet); Pneumatic jig section is positioned at separation chamber bottom, and air inlet is located at pneumatic jig section; Flow apron is arranged between separation chamber and pneumatic jig section; Meal collection section is positioned at the bottom of pneumatic jig section, and the bottom of meal section is meal outlet.
The purpose of this utility model is realized by approach below: classification air-flow enters from the air inlet being arranged on pneumatic jig section, in separation chamber, form the air-flow of rotation under the effect rotating grading wheel, the swirling eddy district near grading wheel is the main region of grain sorting.The powder added from powder concentrator its top feed mouth enters grading room after air-flow and charging baffle plate " once disperse ", under the effect of swirling eddy, the particle that particle diameter is larger is thrown toward powder concentrator wall and descending with flow rotation along wall under centrifugal action, meet flow apron and make that gas is directed to be continued to do rotational flow and powder and flow apron are collided, the pneumatic jig airflow function simultaneously risen, carries out " twice dispersing " powder.The powder of abundant dispersion is sorted in a swirling eddy point favored area, and fine grained is followed air-flow classified impeller blade gap and entered escape pipe finally being collected by follow-up fines collection device, and the coarse granule meal collection section that then sedimentation enters bottom is collected.
The effect of flow apron guides sorting indoor air flow and powder to do the directed movement being conducive to grain sorting, stops that the motion of big particle increases material dispersion machine meeting thus improves separating effect by collision simultaneously.The shape of flow apron can be arc or flat board.Flow apron can have hole or seam, make the air-flow of pneumatic jig section through this some holes or sew on row contact with the powder on flow apron, strengthen the dispersion to powder, elutriation fine powder.These perforates can be that circular hole also can be non-circular hole, and hole is of a size of 1-25mm, and the width dimensions of seam is 1-50mm.The installation direction of flow apron: from the limit wall of powder concentrator, the direction of rotation (i.e. the direction of rotation of sorting air-flow) along grading wheel extends, and extended distance is 0.2-0.8 times of separation chamber's diameter (i.e. the horizontal width of separation chamber).Distance between flow apron and grading wheel outer rim is 0.2-5.0 times of grading wheel diameter.
Compared with prior art, advantage of the present utility model and beneficial effect are: by installing flow apron in separation chamber, improve the dispersiveness of powder, effectively can reduce the entrainment of fine powder in meal, improve the sharpness of separation of sleeping wheeled air-flow powder concentrator, reduce sorting gas consumption, remarkable in economical benefits.In addition, the utility model is implemented easily, only to transform a little and can realize existing equipment.
Accompanying drawing explanation
Fig. 1 is that the one of prior art crouches wheeled air-flow powder concentrator schematic diagram;
Fig. 2 is the Horizontal gas flow powder concentrator schematic diagram of the utility model band flow apron;
Fig. 3 is the Experimental Comparison of the sharpness of separation of the utility model and prior art.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described:
Fig. 1 is that the one of prior art crouches wheeled air-flow powder concentrator schematic diagram, exports 9 etc. form by meal collection section 1, pneumatic jig section 2, separation chamber 3, grading wheel 4, charging baffle plate 5, charging aperture 6, air inlet 8, meal.
Fig. 2 is the improvement to the prior art shown in Fig. 1, and disclose a kind of sleeping wheeled air-flow powder concentrator with flow apron, grading wheel 4 level is arranged in separation chamber 3, and its one end is connected with power transmission shaft, and the other end is provided with escape pipe.The top of separation chamber 3 is semicircle, and the width of bottom equals the diameter of upper rounded part, and horizontal length is determined according to powder treating capacity.Charge door 6 is located at separation chamber 3 top, and charging baffle plate 5 is arranged at charging aperture 6 bottom, and separation chamber 3 bottom installs flow apron group 7 additional, is provided with gas access 8 in its lower pneumatic jig section 2, then bottom is meal collection section 1 and meal outlet 9.
During utility model works, external motor drives grading wheel 4 to rotate with certain rotating speed by power transmission shaft, powder is added by separation chamber 3 top, divide the sorting through the field of force in constituency at the swirling eddy of grading wheel 4 driving, follow air-flow compared with fine powder material and leave powder concentrator via grading wheel 4 impeller clearance inflow escape pipe and collected by follow-up deduster; Big particle powder is then thrown toward separating chamber 3 limit wall, rotates downwards, through flow apron 7 and pneumatic jig section 2 wind action, increases dispersion and the elutriation of large or fine granule, realizes twice dispersing and sorting.Meal final settlement falls into meal collection section 1, then discharges from meal outlet 9.Fig. 3 is for adopting FCC catalyst, under normal temperature and pressure laboratory condition, test comparing of the sharpness of separation of the sleeping wheeled air-flow powder concentrator of the utility model band flow apron and the sleeping wheeled air-flow powder concentrator without flow apron of prior art recorded, effectiveness of classification desired value K (K=d of the present utility model as seen
75/ d
25) numerical value significantly reduces, and namely selects sharpness of separation to significantly improve.
In this description, the utility model technology describes with reference to its specific example.But still can make various amendment and conversion obviously and not deviate from the spirit and scope of the present invention.Therefore, description and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (3)
1. the sleeping wheeled air-flow powder concentrator with flow apron, be made up of meal collection section (1), pneumatic jig section (2), separation chamber (3), grading wheel (4), charging baffle plate (5), charging aperture (6), flow apron (7), it is characterized in that: charging aperture (6) is positioned at separation chamber (3) top, there is charging baffle plate (5) charging aperture (6) below, grading wheel (4) level is arranged in separation chamber (3), the rotating shaft of grading wheel (4) one end reaches separation chamber (3) and is connected with drive motors outward, and the other end of grading wheel (4) connects with discharge pipe; Pneumatic jig section (2) is positioned at separation chamber (3) bottom, and air inlet (8) is located in pneumatic jig section (2), and meal collection section (1) is positioned at the bottom of pneumatic jig section (2), and the bottom of meal collection section (1) is meal outlet (9).
2. the sleeping wheeled air-flow powder concentrator of band flow apron as claimed in claim 1, it is characterized in that, separation chamber (3) bottom is provided with flow apron (7), flow apron (7) is installed from the limit wall of powder concentrator, direction of rotation along grading wheel (4) extends in powder concentrator, extended distance is 0.2-0.8 times of separation chamber (3) diameter, and the distance between flow apron (7) and grading wheel (4) outer rim is 0.2-5.0 times of grading wheel (4) diameter.
3. the sleeping wheeled air-flow powder concentrator of band flow apron as claimed in claim 1, is characterized in that, the upper porose or seam of flow apron (7), hole is of a size of 1-25mm, and seam is of a size of 1-50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520264658.3U CN204842208U (en) | 2015-04-29 | 2015-04-29 | Wheeled air current selection powder machine crouches |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520264658.3U CN204842208U (en) | 2015-04-29 | 2015-04-29 | Wheeled air current selection powder machine crouches |
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| CN204842208U true CN204842208U (en) | 2015-12-09 |
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| CN201520264658.3U Active CN204842208U (en) | 2015-04-29 | 2015-04-29 | Wheeled air current selection powder machine crouches |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107971224A (en) * | 2016-10-25 | 2018-05-01 | 中国石油化工股份有限公司 | Flow field construction method and grading plant for gradation |
| CN108144854A (en) * | 2016-12-05 | 2018-06-12 | 郑州狮虎磨料磨具有限公司 | A kind of turbine airflow grader |
| CN110773428A (en) * | 2019-10-28 | 2020-02-11 | 河北科技大学 | Powder selecting machine |
| CN111941481A (en) * | 2020-08-11 | 2020-11-17 | 卢镱 | Device is beaten to herbal pieces-high efficiency section |
-
2015
- 2015-04-29 CN CN201520264658.3U patent/CN204842208U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107971224A (en) * | 2016-10-25 | 2018-05-01 | 中国石油化工股份有限公司 | Flow field construction method and grading plant for gradation |
| CN107971224B (en) * | 2016-10-25 | 2024-01-05 | 中国石油化工股份有限公司 | Flow field construction method and classification device for particle classification |
| CN108144854A (en) * | 2016-12-05 | 2018-06-12 | 郑州狮虎磨料磨具有限公司 | A kind of turbine airflow grader |
| CN110773428A (en) * | 2019-10-28 | 2020-02-11 | 河北科技大学 | Powder selecting machine |
| CN110773428B (en) * | 2019-10-28 | 2022-03-25 | 河北科技大学 | Powder selecting machine |
| CN111941481A (en) * | 2020-08-11 | 2020-11-17 | 卢镱 | Device is beaten to herbal pieces-high efficiency section |
| CN111941481B (en) * | 2020-08-11 | 2021-05-28 | 江门市新会中药饮片厂有限公司 | Device is beaten to herbal pieces-high efficiency section |
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