CN204892374U - Rotor formula selection powder machine - Google Patents

Rotor formula selection powder machine Download PDF

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Publication number
CN204892374U
CN204892374U CN201520550975.1U CN201520550975U CN204892374U CN 204892374 U CN204892374 U CN 204892374U CN 201520550975 U CN201520550975 U CN 201520550975U CN 204892374 U CN204892374 U CN 204892374U
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CN
China
Prior art keywords
powder
rotor
guide vane
rate
angle
Prior art date
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Withdrawn - After Issue
Application number
CN201520550975.1U
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Chinese (zh)
Inventor
李征
龚汉保
冯涛
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.)
JIANGSU LINGYANG CEMENT ENGINEERING TECHNOLOGY Co Ltd
Original Assignee
JIANGSU LINGYANG CEMENT ENGINEERING TECHNOLOGY Co Ltd
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Priority to CN201520550975.1U priority Critical patent/CN204892374U/en
Application granted granted Critical
Publication of CN204892374U publication Critical patent/CN204892374U/en
Withdrawn - After Issue legal-status Critical Current
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Abstract

The utility model discloses a rotor formula selection powder machine, this kind of selection powder machine adopts feeding down, the material that gets into selection powder machine through feeding device mixes system formation wind material mixture through powder gas, wherein the muddy system of powder gas includes powder dispersion devices and jetting device, the jetting unit bit in powder dispersion devices all around and surround powder dispersion devices, feeding device's export is hanged in powder dispersion devices top, the device of wherein jetting has a plurality of water conservancy diversion paddles, the water conservancy diversion paddle distributes around powder dispersion devices, spout and the water conservancy diversion paddle has the angle of slope into the air current rotatory at selection powder built -in, form the wind material mixture that the spiral rises. The utility model discloses a rotor formula selection powder machine output increases, power consumptive reduction to the product grain -size distribution is more reasonable.

Description

A kind of rotor type powder sorter
Technical field
The utility model belongs to the cement screening installation technical field in cement close-circuit powder grinding, is specifically related to the rotor type powder sorter of structure through redesigning in a kind of cement close-circuit powder grinding.
Background technology
Powder concentrator extensive use in the cement close-circuit powder grinding of cement plant, namely in pipe of cement disintegrating outlet material thickness powder be separated, wherein fine powder material is as finished product, delivers in cement memory device, and meal get back to pipe of cement mill in again grind.
In current cement close-circuit powder grinding, the normally powder concentrator of upper feeding system, by elevator, material is mentioned powder concentrator top, be fed between the stator blade of powder concentrator and rotor by spreading disk, after material mixes between the moving vane and rotor of powder concentrator, utilize large or fine granule to have different kinetic energy and carry out sorting.This principle can reduce the efficiency of separation to a certain extent, and grinding efficiency is reduced.
Simultaneously, fine particle relies on the high rotating speed of rotor of powder separator to elect, powder concentrator rotating speed is high, cause rotor short for service life, simultaneously by the space constraint between guide vane and rotor, coarse powder particles cannot effectively be separated, material and wind cannot mix, grinding efficiency is declined, adds the internal circulating load of pipe of cement mill, caused grinding.
Chinese patent application 201510070186.2 discloses a kind of powder concentrator, this kind of powder concentrator adopts the mode of lower charging, fertilizer mixture is formed by the spreading disk dispersed material of drive, but the fertilizer mixture that this kind of mode is formed can not reach the abundant mixing of air-flow and material, and rotor separative efficiency is low, the separating effect that can not have reached.
Therefore, how to improve grinding efficiency, reduce over grinding, product cut size is distributed more reasonable, reducing system power consumption, is current those skilled in the art's problem demanding prompt solution.
Utility model content
The purpose of this utility model is to improve grinding efficiency; Increase system throughput; Reduction system power consumption falls; Product cut size is distributed more reasonable, strength of cement increases.
For this reason, the utility model realizes above-mentioned purpose by the following technical solutions.
A kind of rotor type powder sorter, comprise transmission system, drawing mechanism, housing, drawing-in device, air compensation device, coarse fodder exports, rotor piece-rate system and powder gas mixing system, its rotor piece-rate system comprises rotor and guide vane, air chamber is there is between rotor and guide vane, transmission system provides driving force for the rotor of rotor piece-rate system, drawing mechanism is connected to finished product gathering system, the outlet of drawing-in device is positioned at above powder gas mixing system, air compensation device is positioned at below powder gas mixing system for powder gas mixing system provides air-flow, coarse fodder outlet is positioned at bottom, it is characterized in that, powder gas mixing system comprises powder lot dispersing device and blowing device, blowing device is positioned at powder lot dispersing device surrounding and surrounds powder lot dispersing device, the outlet of drawing-in device is suspended in above powder lot dispersing device, wherein blowing device has multiple water conservancy diversion blade, water conservancy diversion blade is distributed in powder lot dispersing device surrounding, and the angle that water conservancy diversion blade has inclination rotates in powder concentrator to make the air-flow sprayed into, form spiralling fertilizer mixture.
In one embodiment, powder lot dispersing device is the spreading disk with power set, wherein the height of spreading disk plane is higher than the water conservancy diversion blade of surrounding, and material can be thrown above blowing device by spreading disk, is mixed to form spiralling fertilizer mixture with the air-flow sprayed into by water conservancy diversion blade.
In a preferred embodiment, powder lot dispersing device is fluidizer, described fluidizer comprises fluidized bed body and the fluidisation airduct be connected to below fluidized bed body, the outlet of drawing-in device is suspended in above fluidized bed body, fluidisation airduct to fluidized bed body air blast, to realize fully mixing of material and air-flow.In this embodiment, owing to achieving the fluidisation of material in fluidized bed body, reach sufficient gas and mixed effect, thus defined the fertilizer mixture more fully mixed.
Further, the angle of inclination of the water conservancy diversion blade of blowing device makes the anglec of rotation of formed spiralling fertilizer mixture substantially identical with the angle of the guide vane of rotor piece-rate system.
Or the adjustable angle of the guide vane of rotor piece-rate system, can adjust according to the situation of material to make the angle of guide vane.
More preferably, the angle of the guide vane of rotor piece-rate system can monolithic adjustment, integrated regulation, or the guide vane of rotor piece-rate system is divided into some groups, and the angle of the guide vane of rotor piece-rate system can be divided into groups adjustment separately.
What the utility model proposes brand-new selects powder system, according to practice, creates following beneficial effect:
1, output increases 15-20% compared with traditional system;
2, system power consumption reduces by 2 ~ 5kWh/t compared with traditional system;
3, product cut size distribution is more reasonable, and strength of cement increases.
Accompanying drawing explanation
Fig. 1 is the structural representation of powder concentrator of the present utility model;
Fig. 2 is the process chart of the cement close-circuit powder grinding adopting powder concentrator of the present utility model;
Fig. 3 is the structural representation of rotor piece-rate system used in powder concentrator;
Fig. 4 is the schematic diagram that in rotor piece-rate system, powder particles is separated;
Fig. 5 is the structural principle schematic diagram of the powder gas mixing system of band fluidizer;
Fig. 6 is the structural principle schematic diagram of the powder gas mixing system of band spreading disk.
In the drawings: 1, transmission system; 2, drawing mechanism; 3, rotor; 4, guide vane; 5, housing; 6, drawing-in device; 7, powder lot dispersing device; 8, blowing device; 9, air compensation device; 10, coarse fodder outlet; 11, meal feeding back device; 12, sorting air chamber; 13, fluidized bed body; 14, fluidisation airduct; 15, spreading disk; 16, water conservancy diversion blade; A, powder concentrator; B, pipe grind; C, finished product gathering system; D, material hoisting system.
Detailed description of the invention
The utility model aims to provide a kind of scheme, to realize improving grinding efficiency, reduce over grinding, to make the object that product cut size distribution is more reasonable, reduce system power consumption.
For achieving the above object, the utility model have employed following technical scheme.
High performance rotary powder separator of the present utility model comprises material dispersing device, blowing device, air compensation device, rotor piece-rate system etc., and rotor piece-rate system comprises again sorting air chamber, guide blade structures and rotor etc. as stator blade.Air-flow and material, after material dispersing device, blowing device Homogeneous phase mixing, enter stator blade with the rotation direction that same stator blade is identical.Material can carry out large or fine granule separation at sorting air chamber.Guide blade structures preferably can according to material situation, the anglec of rotation of such as spiralling fertilizer mixture, speed and material composition etc., regulate guide vane angle, and the adjustment of guide vane can monolithic regulate, integrally-regulated, also can regulate in groups, so can make reach 10 years the service life of guide vane, improve economy.
The air compensation device of powder concentrator bottom not only can ensure pipe of cement mill inner ventilation but also blowing device each position wind speed can be made unanimously even.
For pursue evenly wind mix effect, preferred material dispersing device adopts fluidized-bed structure, namely fluidized bed body and fluidisation airduct is comprised, fluidisation airduct is to fluidized bed body air blast, material fluidisation mixing with wind in fluidized bed body, and translating into outward above blowing device, further mixed be incorporated in airflow function under, the fertilizer mixture spiral escalation formed, enters the stator blade of rotator type piece-rate system with certain angle.
Below in conjunction with accompanying drawing, the utility model is described in further detail.
First see Fig. 1, powder concentrator of the present utility model uses lower feed system, by the material dispersing device 7 of uniqueness, such as fluidizer, and blowing device 8, make material and gas have time enough and space to mix, and carry out first sorting, make bulky grain meal material in material directly return ball mill by coarse fodder outlet 10.High performance rotary powder separator is arranged and is seen Fig. 2 in cement close-circuit powder grinding.
Blowing device 8 provides air-flow by air compensation device 9, wind and mixing of materials evenly after, enter sorting air chamber 12 with the rotation direction identical with guide vane 4, material carries out secondary sorting in sorting air chamber, as shown in Figure 3.Sorting air chamber not only can ensure that material can carry out effective thickness separation but also can ensure that fine powder material has certain kinetic energy in air chamber, crossed rotor 3 and entered dust collecting system.
See Fig. 4, in rotator type piece-rate system, material is mainly subject to the effect of following several power, thus realize thick, fine grained separation: 1) gravity, in rotator type piece-rate system, heavier coarse granule can fall meal feeding back device 11 due to the gravity of self, gets back in pipe mill; 2) centrifugal force, under the effect of rotor 3, heavier coarse granule can be separated because of the effect of centrifugal force further, falls meal feeding back device 11, gets back in pipe mill; 3) gravitation, the satisfactory fine grained of particle diameter can be recycled in finished product gathering system because of the suction of drawing mechanism 2.
In rotor type powder sorter of the present utility model, the wind speed of preferred rotor border is substantially identical with the linear velocity of rotor, effectively raise the service life of rotor and guide vane, rotor speed reduces, and effectively raises the service life of rotor bearing and the service life of each seal of armature spindle.
Material dispersing device can adopt various ways, in one embodiment, as shown in Figure 5, uses transmission mechanism to add the mode of independent spreading disk, i.e. the spreading disk 15 of drive.Also the form of fluid bed can be adopted, as shown in Figure 6, the material of being come in by drawing-in device 6 carries out fluidisation by blower fan through fluidisation airduct 14 air blast in fluidized bed body 13, and the material of fluidisation turns up, blowing device forms spiralling air-flow, mixes further with the material of fluidisation.
Blowing device comprises the water conservancy diversion blade 16 of inclination, the angle of blowing device ensure that in the anglec of rotation of fertilizer mist fertilizer when entering guide vane basic identical with guide vane angle, effectively reduce the wearing and tearing of guide vane, improve the service life of guide vane.
Preferably, the linear velocity of rotor of powder separator is substantially identical with rotor border wind speed, large root diameter, the wearing and tearing of rotor is reduced, effectively raises the service life of rotor, and makes the raising having matter service life of rotor associated actuator, sealing parts.
With instantiation, embodiment of the present utility model is described in detail by reference to the accompanying drawings above, but the utility model is not limited to above-mentioned embodiment, in the ken that art those of ordinary skill possesses, can also make a variety of changes under the prerequisite not departing from the utility model aim.

Claims (6)

1. a rotor type powder sorter, comprise transmission system, drawing mechanism, housing, drawing-in device, air compensation device, coarse fodder exports, rotor piece-rate system and powder gas mixing system, its rotor piece-rate system comprises rotor and guide vane, air chamber is there is between rotor and guide vane, transmission system provides driving force for the rotor of rotor piece-rate system, drawing mechanism is connected to finished product gathering system, the outlet of drawing-in device is positioned at above powder gas mixing system, air compensation device is positioned at below powder gas mixing system for powder gas mixing system provides air-flow, coarse fodder outlet is positioned at bottom, it is characterized in that, powder gas mixing system comprises powder lot dispersing device and blowing device, blowing device is positioned at powder lot dispersing device surrounding and surrounds powder lot dispersing device, the outlet of drawing-in device is suspended in above powder lot dispersing device, wherein blowing device has multiple water conservancy diversion blade, water conservancy diversion blade is distributed in powder lot dispersing device surrounding, and the angle that water conservancy diversion blade has inclination rotates in powder concentrator to make the air-flow sprayed into, form spiralling fertilizer mixture.
2. rotor type powder sorter as claimed in claim 1, it is characterized in that, powder lot dispersing device is the spreading disk with power set, and wherein the height of spreading disk plane is higher than the water conservancy diversion blade of surrounding.
3. rotor type powder sorter as claimed in claim 1, it is characterized in that, powder lot dispersing device is fluidizer, described fluidizer comprises fluidized bed body and the fluidisation airduct be connected to below fluidized bed body, the outlet of drawing-in device is suspended in above fluidized bed body, fluidisation airduct to fluidized bed body air blast, to realize fully mixing of material and air-flow.
4. rotor type powder sorter as claimed any one in claims 1 to 3, it is characterized in that, the angle of inclination of the water conservancy diversion blade of blowing device makes the anglec of rotation of formed spiralling fertilizer mixture substantially identical with the angle of the guide vane of rotor piece-rate system.
5. rotor type powder sorter as claimed any one in claims 1 to 3, is characterized in that, the adjustable angle of the guide vane of rotor piece-rate system, can adjust to make the angle of guide vane according to the situation of material.
6. rotor type powder sorter as claimed in claim 5, it is characterized in that, the angle of the guide vane of rotor piece-rate system can integrated regulation, or the guide vane of rotor piece-rate system is divided into some groups, and the angle of the guide vane of rotor piece-rate system can be divided into groups adjustment separately.
CN201520550975.1U 2015-07-28 2015-07-28 Rotor formula selection powder machine Withdrawn - After Issue CN204892374U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520550975.1U CN204892374U (en) 2015-07-28 2015-07-28 Rotor formula selection powder machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520550975.1U CN204892374U (en) 2015-07-28 2015-07-28 Rotor formula selection powder machine

Publications (1)

Publication Number Publication Date
CN204892374U true CN204892374U (en) 2015-12-23

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Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104984911A (en) * 2015-07-28 2015-10-21 江苏羚羊水泥工程技术有限公司 Rotor type powder concentrator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104984911A (en) * 2015-07-28 2015-10-21 江苏羚羊水泥工程技术有限公司 Rotor type powder concentrator

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C14 Grant of patent or utility model
AV01 Patent right actively abandoned

Granted publication date: 20151223

Effective date of abandoning: 20171201

AV01 Patent right actively abandoned