CN102513295A - Self flow division type grading machine - Google Patents
Self flow division type grading machine Download PDFInfo
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- CN102513295A CN102513295A CN2011104482230A CN201110448223A CN102513295A CN 102513295 A CN102513295 A CN 102513295A CN 2011104482230 A CN2011104482230 A CN 2011104482230A CN 201110448223 A CN201110448223 A CN 201110448223A CN 102513295 A CN102513295 A CN 102513295A
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- grading wheel
- labyrinth ring
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Abstract
The invention discloses a self flow division type grading machine, which belongs to the technical field of the grading machine and mainly comprises a machine body, a grading wheel and an air inlet passage, wherein a feeding opening is arranged on the machine body, the grading wheel is driven by a motive power device and is positioned in the machine body, a first labyrinth ring and the second labyrinth ring which are mutually matched are arranged between the degrading wheel and the machine body, the first labyrinth ring is fixedly arranged on the machine body, in addition, an annular groove is arranged on the first labyrinth ring, the second labyrinth ring is fixedly arranged on the grading wheel, in addition, an annular convex edge is arranged on the second labyrinth ring, and the air inlet passage is arranged on the machine body and is communicated with the annular groove. With the invention, the technical problem of sealing between the grading wheel and the machine body is solved, and the self flow division type grading machine is widely applied to fine grading of solid particles.
Description
Technical field
The present invention relates to a kind of pressed powder grading plant, relate in particular to a kind of self-shunting grader.
Background technology
Traditional dry type gas flow sizing machine is made up of motor, grading wheel, classification stack shell etc., and it is through the rotating speed of regulating grading wheel and is equipped with the reasonable secondary air intake and realizes the effective classification to material.But there are shortcomings such as treating capacity is little, effectiveness of classification is low, the fine powder recovery rate is low, bulky grain control is not strict in traditional gas flow sizing machine, causes difficulty thereby make businessman to micro mist.
Chinese invention patent ublic specification of application CN 21088960Y discloses a kind of centrifugal self-shunting grader, and this product comprises the grading room housing, and the top of housing is cylinder; The bottom is up big and down small cone, on the top board on top head is installed, and head is by the head outlet that is fixed on the top board; Be placed in the motor of head outlet top, and be made up of the grading wheel of driven by motor, head exports external negative pressure source; Grading wheel is positioned at the grading room of top board below, the cavity of middle part for being communicated with the head outlet through roof hole, and the periphery is a blade spaced apart; The big up and small down truncated cone-shaped of whole gabarit, the bottom connects feed conduit, and the outlet of feed conduit is up; Be positioned near the centre, bottom, the bottom of bottom is connected with the feed back pipe.This centrifugal self-shunting grader can improve shortcomings such as the fine powder recovery rate is low, bulky grain control is not strict, and still, because interior flow area of grading room and flow are uncontrollable, its discharging fineness, effectiveness of classification and production capacity all are affected.
Especially also there is a technical barrier in traditional grader; That is exactly the sealing problem between grading wheel and the body, is installed in the body owing to grading wheel need rotate, so there is a movable sealing between grading wheel and the body; In industries such as the abrasive material of granularity requirements narrowly distributing, fluorescent material, aluminium powder; Grain graininess is little, very easily leaks out through the gap between grading wheel and the body, causes the waste of environmental pollution and raw material.
Summary of the invention
Technical problem to be solved by this invention is: a kind of self-shunting grader is provided, to solve the technical problem that seals between grading wheel and the body.
For solving the problems of the technologies described above, technical scheme of the present invention is: the self-shunting grader comprises: body, and said body is provided with charging aperture; Grading wheel by the power set driving; Said grading wheel is positioned at said body; Be provided with first labyrinth ring and second labyrinth ring that cooperatively interact between said grading wheel and the body; Said first labyrinth ring is fixedly installed on the said body and said first labyrinth ring is provided with annular groove, and said second labyrinth ring is fixedly installed on the said grading wheel and said second labyrinth ring is provided with annular ridge; Said body is provided with inlet channel, and said inlet channel is communicated with said annular groove.
As a kind of improvement, be provided with an inner barrel in the said body, said inner barrel is fixedly installed in the inside of said body, and is positioned at said grading wheel below, forms the powder flow channels of annular between said inner barrel and the body.
As further improvement, be cylindric in the middle of the said inner barrel, two ends are cone.
As further improvement, said charging aperture is corresponding with the middle part of said inner barrel.
Improve as another kind; Said body is provided with the secondary air device; Said secondary air device comprises the orifice plate that is fixedly installed on the body; The outside of said orifice plate is provided with cover plate, and said cover plate is provided with and the corresponding through hole in the hole site of said orifice plate, and said cover plate is connected through securing member with orifice plate.
Improve as another kind, be provided with elastic dowel pin shaft coupling between the power output shaft of said power set and the main shaft of grading wheel.
Improve as another kind, the blade surface of said grading wheel is provided with carburized layer.
Improve as another kind, said body is provided with inspection door, and said inspection door is corresponding with the position of grading wheel.
Adopted technique scheme; The invention has the beneficial effects as follows: owing to be provided with first labyrinth ring and second labyrinth ring that cooperatively interacts between grading wheel and the body; Adopt the labyrinth seal mode between first labyrinth ring and second labyrinth ring, and designed inlet channel and be communicated with the annular groove on first labyrinth ring, make under the grading room suction function; Just can produce the natural wind that flows by in the export-oriented grading room of body in the inlet channel; Both stop bulky grain and got into grading room, realized self-priming hermetic seal again, solved the movable sealing problem of grading wheel and body.
Because body is provided with the secondary air device, through rotating the angle between adjustment cover plate and the orifice plate, the hole that can cover or open varying number; Obtain different intakes; And this air intake adopts natural wind fully, is different from traditional power air intake, has reduced energy resource consumption.
Owing to be provided with elastic dowel pin shaft coupling between the power output shaft of power set and the main shaft of grading wheel, good to neutrality, easy installation and removal is fit to high rotating speed operation.
Because the blade surface of grading wheel is provided with carburized layer, has improved the hardness and the rigidity of blade, blade is indeformable when having guaranteed the high rotating speed of grading wheel, has prolonged the service life of grading wheel.
Owing to be provided with inner barrel in the body, form the powder flow channels of annular between inner barrel and the body, make interior flow area of grading room and flow be effectively controlled, increased air-flow velocity, make material clear and definite in the graded region layering; Charging aperture is with respect to said inner barrel middle part, and material is impacted diffusion by cylindrical shell when making charging, more helps material rising layering.
In a word; Owing to adopt technique scheme; Make that the interior flow area of grading room and the flow of self-shunting grader of the present invention are controlled, and solved the movable sealing problem between grading wheel and the body effectively, improved discharging fineness, effectiveness of classification; Reduce energy consumption, improved production capacity.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention;
Fig. 2 is the partial enlarged drawing of A portion among Fig. 1;
Fig. 3 is the partial enlarged drawing of B portion among Fig. 1;
Fig. 4 is the partial enlarged drawing of C portion among Fig. 1;
Fig. 5 is the operation principle sketch map of the embodiment of the invention;
Among the figure: 1, variable-frequency motor, 2, body, 3, grading wheel, 4, elastic dowel pin shaft coupling, 5, discharging opening; 6, inner barrel, 7, charging aperture, 8, the secondary air device, 9, first labyrinth ring; 10, second labyrinth ring, 11, inlet channel, 12, holding screw, 13, orifice plate; 14, cover plate, 15, cyclone collector, 16, sack cleaner, 17, air-introduced machine.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Shown in Fig. 1 and Fig. 2 were common, a kind of self-shunting grader comprised: body 2, said body 2 are provided with charging aperture 7 and discharging opening 5; Grading wheel 3 by the power set driving; Said power set are preferably variable-frequency motor 1; Said grading wheel 3 is positioned at said body 2; Be provided with first labyrinth ring 9 and second labyrinth ring 10 that cooperatively interact between said grading wheel 3 and the body 2, said first labyrinth ring 9 is fixedly installed on the said body 2 and said first labyrinth ring 9 is provided with annular groove, and said second labyrinth ring 10 is fixedly installed on the said grading wheel 3 and said second labyrinth ring 10 is provided with annular ridge; Said body 2 is provided with inlet channel 11, and said inlet channel 11 is communicated with said annular groove, and annular groove is connected with body 2 outside atmosphere.
Also be provided with an inner barrel 6 in the said body 2; Said inner barrel 6 is fixedly installed in the inside of said body 2; And being positioned at said grading wheel 3 belows, forming the powder flow channels of annular between said inner barrel 6 and the body 2, is cylindric in the middle of the said inner barrel 6; Two ends are cone, and said charging aperture 7 is corresponding with the middle part of said inner barrel 6.
For the case hardness of the blade that improves grading wheel 3, prolong the service life of grading wheel 3, the blade surface of said grading wheel 3 is provided with carburized layer.
For ease of the operating position of inspection grading wheel 3, said body 2 is provided with inspection door, and said inspection door is corresponding with the position of grading wheel 3.
Shown in Fig. 1 and Fig. 3 are common, be provided with elastic dowel pin shaft coupling 4 between the main shaft of the power output shaft of said variable-frequency motor 1 and grading wheel 3, good to neutrality, easy installation and removal, suitable high rotating speed operation.
Shown in Fig. 1 and Fig. 4 are common; Said body 2 is provided with secondary air device 8, and said secondary air device 8 comprises the orifice plate 13 that is fixedly installed on the body 2, and the outside of said orifice plate 13 is provided with cover plate 14; Said cover plate 14 is provided with and the corresponding through hole in the hole site of said orifice plate 13; Said cover plate 14 and orifice plate 13 are connected through securing member, and common said securing member is selected holding screw 12 for use, through shutoff or the hole of opening varying number on the orifice plate 13 to obtain different intakes.
Its course of work is following:
Shown in Fig. 1 and Fig. 5 were common, material was got in the body 2 of the stream grader of evaluating oneself by charging aperture 7, runs on inner barrel 6 barrels; Impacted diffusion, under the effect of secondary air device 8 ascending airs, passed through the annular powder flow channels that forms between inner barrel 6 and the body 2 fast; In graded region, form clear and definite material diversion layer, variable-frequency motor 1 drives grading wheel 3 and rotates, and the powder of the qualified fineness that meets the classification requirement is discharged through discharging opening 5; Fine powder gets into cyclone collector 15; A small amount of micro mist gets into sack cleaner 16 and captures, and purified gas is discharged by air-introduced machine 17, and meal is because gravity is sent back to grading room once more with other impact energy effects; Fall the bottom along body 2 and collect, discharge by device for discharging.
Reasonable in design of the present invention, automaticity is high, is widely used in various milling equipments such as ball mill, Raymond mill, impact grinding, airflow milling and forms closed circuit or open system.
The present invention is not limited to above-mentioned concrete embodiment, and those of ordinary skill in the art is from above-mentioned design, and without performing creative labour, all conversion of having done all drop within protection scope of the present invention.
Claims (8)
1. the self-shunting grader is characterized in that, comprising:
Body, said body is provided with charging aperture;
Grading wheel by the power set driving; Said grading wheel is positioned at said body; Be provided with first labyrinth ring and second labyrinth ring that cooperatively interact between said grading wheel and the body; Said first labyrinth ring is fixedly installed on the said body and said first labyrinth ring is provided with annular groove, and said second labyrinth ring is fixedly installed on the said grading wheel and said second labyrinth ring is provided with annular ridge; Said body is provided with inlet channel, and said inlet channel is communicated with said annular groove.
2. self-shunting grader as claimed in claim 1; It is characterized in that: be provided with an inner barrel in the said body; Said inner barrel is fixedly installed in the inside of said body, and is positioned at said grading wheel below, forms the powder flow channels of annular between said inner barrel and the body.
3. self-shunting grader as claimed in claim 2 is characterized in that: for cylindric, two ends are cone in the middle of the said inner barrel.
4. self-shunting grader as claimed in claim 3 is characterized in that: said charging aperture is corresponding with the middle part of said inner barrel.
5. self-shunting grader as claimed in claim 1; It is characterized in that: said body is provided with the secondary air device; Said secondary air device comprises the orifice plate that is fixedly installed on the body; The outside of said orifice plate is provided with cover plate, and said cover plate is provided with and the corresponding through hole in the hole site of said orifice plate, and said cover plate is connected through securing member with orifice plate.
6. self-shunting grader as claimed in claim 1 is characterized in that: be provided with elastic dowel pin shaft coupling between the power output shaft of said power set and the main shaft of grading wheel.
7. self-shunting grader as claimed in claim 1 is characterized in that: the blade surface of said grading wheel is provided with carburized layer.
8. self-shunting grader as claimed in claim 1 is characterized in that: said body is provided with inspection door, and said inspection door is corresponding with the position of grading wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104482230A CN102513295A (en) | 2011-12-28 | 2011-12-28 | Self flow division type grading machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104482230A CN102513295A (en) | 2011-12-28 | 2011-12-28 | Self flow division type grading machine |
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| Publication Number | Publication Date |
|---|---|
| CN102513295A true CN102513295A (en) | 2012-06-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104482230A Pending CN102513295A (en) | 2011-12-28 | 2011-12-28 | Self flow division type grading machine |
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| CN (1) | CN102513295A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106345579A (en) * | 2016-09-20 | 2017-01-25 | 派勒（天津）纳米技术有限公司 | Grading barrel of dry type ball-milling system |
| CN106964547A (en) * | 2017-05-15 | 2017-07-21 | 江西省浩燃冶金设备有限责任公司 | A kind of mining grading plant |
| CN107008562A (en) * | 2017-04-13 | 2017-08-04 | 江门市中建科技开发有限公司 | A kind of vertical powder concentrator of new cement raw material |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2239301Y (en) * | 1995-11-06 | 1996-11-06 | 曹志国 | Multi-wheel air flow grader |
| CN2329872Y (en) * | 1998-04-02 | 1999-07-21 | 徐锦程 | Domestic energy-saving air heating stove |
| CN2338103Y (en) * | 1998-06-05 | 1999-09-15 | 湖南省电力粉煤灰开发有限公司 | Large scale, high effect, precision and forced air current type separating and sorting machine |
| CN201760338U (en) * | 2010-08-12 | 2011-03-16 | 河南醒狮高新技术股份有限公司 | Dry-method horizontal material grinding and classifying system |
| CN202377192U (en) * | 2011-12-28 | 2012-08-15 | 潍坊正远粉体工程设备有限公司 | Self-split-flow classifying machine |
-
2011
- 2011-12-28 CN CN2011104482230A patent/CN102513295A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2239301Y (en) * | 1995-11-06 | 1996-11-06 | 曹志国 | Multi-wheel air flow grader |
| CN2329872Y (en) * | 1998-04-02 | 1999-07-21 | 徐锦程 | Domestic energy-saving air heating stove |
| CN2338103Y (en) * | 1998-06-05 | 1999-09-15 | 湖南省电力粉煤灰开发有限公司 | Large scale, high effect, precision and forced air current type separating and sorting machine |
| CN201760338U (en) * | 2010-08-12 | 2011-03-16 | 河南醒狮高新技术股份有限公司 | Dry-method horizontal material grinding and classifying system |
| CN202377192U (en) * | 2011-12-28 | 2012-08-15 | 潍坊正远粉体工程设备有限公司 | Self-split-flow classifying machine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106345579A (en) * | 2016-09-20 | 2017-01-25 | 派勒（天津）纳米技术有限公司 | Grading barrel of dry type ball-milling system |
| CN107008562A (en) * | 2017-04-13 | 2017-08-04 | 江门市中建科技开发有限公司 | A kind of vertical powder concentrator of new cement raw material |
| CN106964547A (en) * | 2017-05-15 | 2017-07-21 | 江西省浩燃冶金设备有限责任公司 | A kind of mining grading plant |
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Application publication date: 20120627 |