CN203695426U - Ultrafine powder airflow classifier - Google Patents

Ultrafine powder airflow classifier Download PDF

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Publication number
CN203695426U
CN203695426U CN201420026338.XU CN201420026338U CN203695426U CN 203695426 U CN203695426 U CN 203695426U CN 201420026338 U CN201420026338 U CN 201420026338U CN 203695426 U CN203695426 U CN 203695426U
Authority
CN
China
Prior art keywords
classification
grading
wheel assembly
feed pipe
ultrafine powder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420026338.XU
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Chinese (zh)
Inventor
徐子勤
吴治林
王军成
杨战厚
蔡玉林
杨彦锋
谭涌
魏婷
常艳菊
夏朝军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
XIANYANG NON-METALLIC MINERALS RESEARCH AND DESIGN INSTITUTE Co Ltd
Original Assignee
XIANYANG NON-METALLIC MINERALS RESEARCH AND DESIGN INSTITUTE Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by XIANYANG NON-METALLIC MINERALS RESEARCH AND DESIGN INSTITUTE Co Ltd filed Critical XIANYANG NON-METALLIC MINERALS RESEARCH AND DESIGN INSTITUTE Co Ltd
Priority to CN201420026338.XU priority Critical patent/CN203695426U/en
Application granted granted Critical
Publication of CN203695426U publication Critical patent/CN203695426U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to an ultrafine powder airflow classifier and belongs to the technical field of mechanical manufacturing. The ultrafine powder airflow classifier is mainly characterized in that a feed pipe is arranged on the lower portion of a classification chamber, a powder outlet pipe and a transmission assembly are arranged on the upper portion of the classification chamber, the transmission assembly is coaxially connected with a classification wheel assembly arranged in the classification chamber, classification blades are arranged on the classification wheel assembly, and a conical classification cap is fixedly arranged at the top end of the classification wheel assembly. A volute is arranged in the connection position of the classification chamber and the feed pipe, and a secondary air inlet valve plate is arranged on the volute. A return pipe is arranged on the volute. The upper portion of the classification chamber is cylindrical, and the lower portion of the classification chamber is conical. An elutriator and a secondary air inlet regulating plate are arranged on the classification chamber, and the classification wheel assembly is of a conical frustum structure. The ultrafine powder airflow classifier is simple in structure and high in classification efficiency and classification precision, classified products do not contain large particles, and the classified product particle levels are in normal distribution. The ultrafine powder airflow classifier can be used in cooperation with a pulverizer and can also be used independently or connected with other ultrafine powder airflow classifiers in series for use.

Description

Superfine powder gas flow sizing machine
One, technical field
The utility model relates to a kind of mineral powders gas flow sizing machine, and specifically a kind of superfine powder gas flow sizing machine, belongs to mechanized equipment manufacturing technology field.
Two, background technology
Dry method mechanical equipment is commonly used in the super fine powder of nonmetallic ore and classification; flour mill grinds mineral material to be delivered to superfine classifier by wind-force and carry out classification afterwards; the satisfactory superfine powder of grain fineness enters collector collection through grader discharge pipe and is finished product, and coarse granule falls after rise into flour mill and continues to grind.Grader is divided into built-in and external, and grader can be divided into plain edition and superfine type.It is mainly made up of plain edition grader motor, reductor, main shaft, grading wheel, blade, housing etc.Be subject to the impact of physical dimension and machining accuracy, plain edition grader blade and seal clearance are larger, easily form the bulky grain phenomenon in product, have affected grader precision, and classification efficiency declines.Graded blade, grading wheel and the hermetically-sealed construction of superfine classifier all carried out specialized designs and Precision Machining, rotatable parts and carry out dynamic balance check, and the rotating speed of grading wheel is higher, and effectiveness of classification is high, and in product, without bulky grain, product fineness is normal distribution.Built-in classifying machine is that grader is directly placed in to flour mill top, and external grader is placed in flour mill outside, can separate unit or many series connection and collector be connected.
Three, utility model content
The purpose of this utility model is low in order to solve existing superfine classifier classification efficiency, easily has bulky grain phenomenon in graded product, thereby a kind of new technical scheme is provided.
For achieving the above object, the utility model can be achieved through the following technical solutions:
A kind of superfine powder gas flow sizing machine, it is to be provided with feed pipe, grading room and flour extraction pipe on the housing of sealing, feed pipe is arranged on the bottom of housing, flour extraction pipe is arranged on the top of housing, and the grading room being provided with on feed pipe top, is provided with feed pipe in the bottom of grading room, be provided with flour extraction pipe and drive assembly on the top of grading room, drive assembly is coaxially connected with the grading wheel assembly being located in grading room, on grading wheel assembly, is provided with graded blade, and top is fixed with classfied cone cap; Be provided with spiral case at grading room and feed pipe junction, spiral case is provided with secondary air valve plate; Described refeed line is arranged on spiral case; On described grading room, part is cylindrical shape, and lower part is conical.
Lower end at grading room is provided with elutriator, and described elutriator is inside and outside annular circular cone structure, and the frustum of a cone is up big and down small, is provided with 1-5mm gap between the inside and outside frustum of a cone, intersection length 40-90mm.
The grading wheel of described grading wheel assembly is circular cone structure, up big and down small, and its tapering is 15-20 °.
Described spiral case is annular square opening structure, is provided with secondary air valve plate in end.
The beneficial effect that the utility model compared with prior art had is: simple in structure, stable, production process is simplified, the adjustable control of speed, and classification efficiency and effectiveness of classification improve.
The utility model is obvious in the super-fine classified middle result of use of the nonmetallic mineral materials such as kaolin, talcum, gypsum, sepiolite, barite, calcite, the sub-micron-powder grating of classification is normal distribution, grading is accurate, without bulky grain, has improved product quality.
Regulate secondary air register to open size, can control, improve classification efficiency, stable, reliable product quality.
Four, brief description of the drawings
Accompanying drawing is a kind of exemplary construction schematic diagram of the utility model.
In figure: 1, feed pipe, 2, elutriator, 3, spiral case, 4, secondary air valve plate, 5, classfied cone cap, 6, grading room, 7, grading wheel assembly, 8, flour extraction pipe, 9, drive assembly, 10, refeed line.
Five, detailed description of the invention
With specific embodiment, the utility model is described in further details by reference to the accompanying drawings now:
A kind of superfine powder gas flow sizing machine, this device is connected and is formed by feed pipe 1, elutriator 2, spiral case 3, secondary air valve plate 4, classfied cone cap 5, grading room 6, grading wheel assembly 7, flour extraction pipe 8, drive assembly 9, refeed line 10.
Feed pipe 1 of the present utility model and refeed line 10 are in the bottom of equipment, and middle part is spiral case 3 and grading room 6, and drive assembly 9 and flour extraction pipe 8 are arranged on top.The superfine powder that flour mill grinds out enters grading room 6 with air-flow by feed pipe 1, disperse through classfied cone cap 5, form stable laminar flow mixing field, the superfine powder of laminarization is through 7 classifications of circular cone bench-type grading wheel assembly, the superfine powder that fineness is qualified rises to fine powder flour extraction pipe 8 through the blade of grading wheel assembly 7, enter collector, meal falls and continues to grind through 10 times flour mills of refeed line.Classfied cone cap 5 and grading wheel assembly 7 High Rotation Speed under the power drive of drive assembly 9, superfine powder in flow field of mixed layers enters product-collecting device by grading wheel assembly 7 through flour extraction pipe 8, middle meal is thrown to grading room 6 inwalls and falls, run into from the secondary air of spiral case 3 at elutriator 2 places, High Rotation Speed air-flow blows afloat the middle meal before elutriator 2, again enter grading room 6, fine particle rises and enters grading wheel assembly 7, complete secondary grading, meal drops to refeed line 10 discharges, and also accessible grinder continues to grind.
Adjusting is arranged on the secondary air valve plate 4 opening sizes on spiral case 3, can control the elutriation efficiency of elutriator 2.On described grading room 6, part is cylindrical shape, and lower part is conical.Feed pipe 1 and refeed line 10 are in device bottom, and middle part is grading room 6, and top is drive assembly 9, and product flour extraction pipe 8 is at equipment top.
Elutriator 2 is inside and outside annular circular cone structure, and the frustum of a cone is up big and down small, is provided with 5mm gap between the inside and outside frustum of a cone, intersection length 60mm.
The grading wheel of grading wheel assembly 7 is circular cone structure, up big and down small, and its tapering is 18 °.
Spiral case 3 is annular square opening structure, is provided with secondary air valve plate 4 in end.
The utility model is in classification process, grading room 6 is provided with secondary air inlet, on secondary air inlet, be provided with secondary air valve plate 4, and be provided with elutriator 2, regulate secondary air valve plate 4 can control secondary air inlet size, the High Rotation Speed air-flow that isolated middle meal again can be entered before elutriator 2 to grading room 6 blows afloat, and fine particle rises and enters dispersion, stepped zone, has improved classification efficiency and abrasive dust equipment yield.

Claims (4)

1. a superfine powder gas flow sizing machine, it is to be provided with feed pipe on the housing of sealing, grading room and flour extraction pipe, feed pipe is arranged on the bottom of housing, flour extraction pipe is arranged on the top of housing, and the grading room being provided with on feed pipe top, it is characterized in that: be provided with feed pipe (1) in the bottom of grading room (6), be provided with flour extraction pipe (8) and drive assembly (9) on the top of grading room (6), drive assembly (9) is coaxially connected with the grading wheel assembly (7) being located in grading room (6), on grading wheel assembly (7), be provided with graded blade, top is fixed with classfied cone cap (5), be provided with spiral case (3) in grading room (6) and feed pipe (1) junction, spiral case (3) is provided with secondary air valve plate (4), described refeed line (10) is arranged on spiral case (3), the upper part of described grading room (6) is cylindrical shape, and lower part is conical.
2. a kind of superfine powder gas flow sizing machine according to claim 1, it is characterized in that: be provided with elutriator (2) in the lower end of grading room (6), described elutriator (2) is inside and outside annular circular cone structure, the frustum of a cone is up big and down small, between the inside and outside frustum of a cone, be provided with 1-5mm gap, intersection length 40-90mm.
3. a kind of superfine powder gas flow sizing machine according to claim 1, is characterized in that: the grading wheel of described grading wheel assembly (7) is circular cone structure, up big and down small, and its tapering is 15-20 °.
4. a kind of superfine powder gas flow sizing machine according to claim 1, is characterized in that: described spiral case (3) is annular square opening structure, is provided with secondary air valve plate (4) in end.
CN201420026338.XU 2014-01-07 2014-01-07 Ultrafine powder airflow classifier Expired - Fee Related CN203695426U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420026338.XU CN203695426U (en) 2014-01-07 2014-01-07 Ultrafine powder airflow classifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420026338.XU CN203695426U (en) 2014-01-07 2014-01-07 Ultrafine powder airflow classifier

Publications (1)

Publication Number Publication Date
CN203695426U true CN203695426U (en) 2014-07-09

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Family Applications (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104368528A (en) * 2014-11-17 2015-02-25 王树波 Separator capable of controlling particle size distribution in high-precision mode
CN104923795A (en) * 2015-06-17 2015-09-23 吉林市凯尔维特机电设备有限责任公司 Magnetic material powder manufacturing process and magnetic powder classifier thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104368528A (en) * 2014-11-17 2015-02-25 王树波 Separator capable of controlling particle size distribution in high-precision mode
CN104923795A (en) * 2015-06-17 2015-09-23 吉林市凯尔维特机电设备有限责任公司 Magnetic material powder manufacturing process and magnetic powder classifier thereof
CN104923795B (en) * 2015-06-17 2017-09-05 吉林市凯尔维特机电设备有限责任公司 A kind of magnetic material flouring technology

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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: 20140709

Termination date: 20180107