CN201701997U

CN201701997U - Detachable classifier wheel

Info

Publication number: CN201701997U
Application number: CN2010202537437U
Authority: CN
Inventors: 王川明; 王晓玲; 谢怀宝; 林春华; 李泽发
Original assignee: Jilin Xindake Electromechanical Technology Co Ltd
Current assignee: Jilin Xindake Electromechanical Technology Co Ltd
Priority date: 2010-07-07
Filing date: 2010-07-07
Publication date: 2011-01-12
Anticipated expiration: 2020-07-07

Abstract

The utility model discloses a fitting for a jet mill, particularly to a classifier wheel, which is characterized in that a fixing seat, a sorting ring and a compression ring are included, wherein the fixing seat is arranged on the output shaft of a motor; one side of the sorting ring is connected with the fixing seat and provided with the compression ring and fixed by bolts, and an opening is formed on the other side of the sorting ring; and strip-shaped apertures distributed uniformly are formed in the direction of the vertical axis of the cylinder body of the sorting ring for feeding. The utility model has the benefits as follows: the parts with rapid wear in the classifier wheel are independently disassembled into one element with simple shape, easy processing and disassembly, low construction cost and easy replacement, of which the application can reduce the maintenance cost of the classifier wheel, reduce the frequency of stoppage of the jet mill, shorten the time for replacement, prolong the production and operation time of the jet mill, reduce the consumption of pressurized gas, lower the manufacturing cost, and facilitate the improvement of the product quality.

Description

A kind of removable grading wheel

Technical field

The utility model relates to a kind of accessory of airflow milling of comminuted solids material.

Background technology

Solid material is pulverized through severe impact, collision, friction in pulverizing chamber, air-flow is transported to grading wheel with fine powder,, coarse granule is thrown to barrel under centrifugal action, fall back to pulverizing chamber and continue to pulverize again, the powder that meets fineness requirement is delivered to separator by grading wheel; Grading wheel one side is fixed on the motor output shaft, and a side opening joins with powder feeding pipe, the grading wheel cylindrical shell is a cavity, and its outer wall y direction is provided with the bar hole seam, and itself and holder, separation ring are that a material processes one, grading wheel washes away through gas-solid mixing high velocity air, and rapid wear needs often to change, as not changing, will cause Granularity Distribution bad, changing frequently then influences production efficiency, increase production cost, use special high-abrasive material instead, then machining is very difficult, and expense is too high.

Summary of the invention

The purpose of this utility model is to improve the grading wheel structure, and a kind of removable grading wheel is provided.

The technical solution of the utility model will be washed away, and the parts of rapid wear split out, Dan Chengyi workpiece.

A kind of removable grading wheel is characterized in that, is provided with holder, separation ring, pressure ring; Holder is located on the motor output shaft, and separation ring one side joint holder is provided with pressure ring, with bolting, separation ring opposite side opening connects the airflow milling discharge nozzle, separation ring cylindrical shell y direction is provided with equally distributed bar hole seam, and in order to charging, described pressure ring is made of two lobes.

The beneficial effects of the utility model are that damageable zone splits into a member, simple shape separately in the grading wheel, easily processing, quick detachable, cost is low, change easily, its application can reduce the grading wheel maintenance cost, reduces the airflow milling stop frequency, reduces the replacing time, increase the airflow milling production operation time, reduce pressurized gas consumption, reduce production costs, help the raising of product quality.

Description of drawings

Fig. 1 constitutes schematic diagram for airflow milling.

Fig. 2 is the utility model structural representation.

Fig. 3 is the A-A profile of Fig. 2.

The specific embodiment

Below in conjunction with the drawings and specific embodiments the utility model is made detailed description further.

Grading wheel 11 is installed in the airtight grading room 14, be enclosed within on the output shaft 10 of motor 9, fixing with axle head gland 12 and bolt 13, and 0.15～0.20mm gap is arranged between the discharge nozzle 16, influence Granularity Distribution in the discharge nozzle 16 in order to prevent that coarse granule from entering, there is clean gas to be incorporated into discharge nozzle 16 outer shrouds, makes and form the blowback compression ring between grading wheel 11 and the discharge nozzle 16 from air inlet 15.

During work, material is sent into pulverizing chamber 18 by charging aperture 8; Compressed nitrogen is entered by air inlet 6, forms entad inverse morphism flow field in the pulverizing chamber bottom by pulverizing nozzle 7 supersonic jet of quickening to produce that sharply expand, and makes the fluidization of material of bottom, mill chamber under the effect of pressure reduction; The material that is accelerated converges at multi-jet joint, produces severe impact, collision, friction and pulverizes; Material through pulverizing moves to the certain altitude on pulverizing chamber top with the air-flow that rises, coarse granule is under the effect of gravity, fall back to mill bottom, chamber along mill locular wall face, fine powder moves to the turbine grading wheel 11 on top with air-flow, in 11 flow fields that produce are swung in the high-speed turbine classification, coarse granule by being thrown near the barrel, and falls back to mill bottom, chamber with the stall meal and pulverizes under centrifugal action; The micro mist that meets fineness requirement is delivered to cyclone separator through discharge nozzle 16, discharging opening 17 and collects then by grading wheel bar hole seam runner.

The grading wheel of integral body made into the removable grading wheel formed by 4 parts.

Design feature: mainly form by grading wheel holder 1, separation ring 2, pressure ring 3, bolt 4.Separation ring 2 cylindrical shell y directions are provided with equally distributed bar hole seam, and hole seam width and motor speed determine material granularity.

This installs erection sequence: grading wheel holder 1 and separation ring 2 are excessively assembled, pressure ring 3 is packed into from grading wheel discharging opening 5, with bolt 4 grading wheel holder 1, separation ring 2, pressure ring 3 are fixed into one.

This device has been used for closed airflow milling pulverizer, can keep the Granularity Distribution unanimity for a comparatively long period of time the service life of having improved grading wheel greatly, has also improved production efficiency greatly, has reduced production cost.

Claims

1. a removable grading wheel is characterized in that, is provided with holder (1), separation ring (2), pressure ring (3); Holder (1) is located on the output shaft (10) of motor (9), separation ring (2) one side joint holders (1), be provided with pressure ring (3), fixing with bolt (4), separation ring (2) opposite side opening, connect airflow milling discharge nozzle (16), separation ring (2) cylindrical shell y direction is provided with equally distributed bar hole seam.

2. according to the described a kind of removable grading wheel of claim 1, it is characterized in that described pressure ring (3) is made of two lobes.