CN103203270A - Improved fluidized bed jet mill - Google Patents
Improved fluidized bed jet mill Download PDFInfo
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- CN103203270A CN103203270A CN2013101228472A CN201310122847A CN103203270A CN 103203270 A CN103203270 A CN 103203270A CN 2013101228472 A CN2013101228472 A CN 2013101228472A CN 201310122847 A CN201310122847 A CN 201310122847A CN 103203270 A CN103203270 A CN 103203270A
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- fluidized bed
- plane
- blade
- jet mill
- grading wheel
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Abstract
The invention relates to an improved fluidized bed jet mill which comprises a stand, a charging device and a grinding classification main body, wherein the grinding classification main body is provided with a classification wheel driven by a driving device; on the sectional view of the classification wheel obtained along the direction vertical to the axis of a central rotating shaft of the classification wheel, the plane or the curved surface on which a blade of the classification wheel is arranged is a blade surface; and the plane passing through the axis of the central rotating shaft of the classification wheel and the geometric center of the blade is a central plane. The improved fluidized bed jet mill is characterized in that a certain included angle is formed between the blade surface and the central plane. According to the improved fluidized bed jet mill, the design of the classification wheel is improved based on the existing fluidized bed jet mill, so that the rotating speed is reduced by 15% from the original basis, the yield is increased by about 15% under the condition of the same particle size condition, and the fineness of the particle size is reduced by about 18% under the same rotating speed condition.
Description
Technical field
The present invention relates to a kind of dry material disintegrating apparatus, be specifically related to a kind of fluidized bed air flow crusher.
Background technology
In the prior art, the dry material disintegrating apparatus has two kinds of fluidized bed air flow crusher and horizontal disc type airslide disintegrating mills.The efficient of fluidized bed air flow crusher is higher, and pulverized particles is thinner, and the product quality grade is higher, and its crushing chamber housing is vertical cylinder, and above lower flange connects.The efficient of horizontal circle disc type airslide disintegrating mill is lower, and pulverized particles is thicker, and lower grade of product quality.Existing fluidized bed air flow crusher, because the grading wheel limitation of design, existence is unclear to the separation of pulverized particles thickness, the part finished particle can not be gone out from discharging opening and still be entered the low situation of situation, crush efficiency that pulverizing chamber is pulverized, and haves much room for improvement.
Summary of the invention
The object of the invention is to provide a kind of improved fluidized bed air flow crusher, and particular design has been carried out in its blade design to grading wheel, makes the fineness of rotating speed reduction, output raising, particle diameter littler.
In order to achieve the above object, the basic technical scheme that the present invention adopts is: a kind of improved fluidized bed air flow crusher, comprise frame, charging (feeding) equipment, the crushing and classification main body, described crushing and classification main body is provided with the grading wheel that is driven by drive unit, on the sectional view of this grading wheel that obtains along the centre rotational axis line direction of vertical described grading wheel, the plane, blade place of described grading wheel or curved surface are blade face, plane centered by centre rotational axis line by described grading wheel and the plane at described blade geometry center forms certain angle between described blade face and the described central plane.The fluidized bed air flow crusher that the technical program limits, on the basis of existing sulfuration bed airslide disintegrating mill, design to its grading wheel improves, make that rotating speed reduces by 15% from the original basis, under equal particle diameter condition, output improves about 15%, and is little by about 18% in the fineness of particle diameter under the equal speed conditions.
Further, as the further improvement project to above fluidized bed air flow crusher, described angle is that number range is 15 °～25 ° acute angle.
Again further, according to the fluidized bed air flow crusher of the specific embodiment of the present invention, described angle is about 20 °.
Beneficial effect of the present invention is as follows:
1. make that rotating speed reduces by 15% from the original basis, under equal particle diameter condition, output improves about 15%, and is little by about 18% in the fineness of particle diameter under the equal speed conditions.
2. this fluidized bed air flow crusher improved about 40% originally by oblique blade grading wheel and the pulverizing chamber design secondary air device PR of having changed particular design from original basis, had saved energy consumption.
Description of drawings
Fig. 1 is the overall structure schematic diagram of the machine body part of fluidized bed air flow crusher of the present invention.
Fig. 2 is the sectional view of the grading wheel in the specific embodiment of fluidized bed air flow crusher of the present invention.
After reading following detailed description of the preferred embodiment by reference to the accompanying drawings, it will be recognized by those skilled in the art scope of the present invention and realize the aspect that it is additional.
In this manual combined and accompanying drawing that constitute the part of this specification illustrates several aspect of the present invention, and is used for explaining principle of the present invention with its description.
The specific embodiment
Referring to accompanying drawing 1 to accompanying drawing 2, a kind of improved fluidized bed air flow crusher, comprise frame (not shown in the accompanying drawing), charging (feeding) equipment, the crushing and classification main body, described crushing and classification main body is provided with the grading wheel 1 that is driven by drive unit 5, on the sectional view of this classifying turbine that obtains along the centre rotational axis line direction of vertical described classifying turbine, the plane, blade place of described classifying turbine 1 or curved surface are blade face, plane centered by the plane of the geometric center by described classifying turbine pivot axis and described classifying turbine blade, the blade face of described classifying turbine 1 around the geometric centre axes rotation of the blade that is parallel to described classifying turbine pivot axis and and described central plane between form a sharp angle.This sharp angle can be 15 °～25 ° values in number range, comprises the numerical value endpoint value.Best, described sharp angle is about 20 °.
Dry material enters pulverizing chamber from material inlet 2, Compressed Gas advances particular arrangement from entrance four nozzles 3 spray high velocity air to pulverizing chamber, material accelerates in supersonic jet, and in the repeated stock of pulverizing chamber center intersection, collision, reaches the effect of pulverizing.Pulverized material enters grading room with ascending air, because grading wheel 1 rotation at a high speed, particle not only had been subjected to centrifugal force that grading wheel 1 produces, but also has been subjected to the air-flow viscous effect and produces centripetal force in uphill process, the centrifugal force that is subjected to when particle is greater than centripetal force, namely the particle bigger than the Cut size that the requires inner chamber that do not advance grading wheel 1 returns pulverizing chamber and continues to be pulverized, and the particle that reaches the Cut size requirement enters grading wheel 1 inner chamber and enters gathering-device with air-flow from discharger 4 outlets.
The embodiment that sets forth above represents and allows those skilled in the art to put into practice necessary information of the present invention, and illustrates and put into practice best mode of the present invention.In case read above description with reference to the accompanying drawings, those skilled in the art just will understand design of the present invention and will recognize the application of these designs of not illustrating especially herein.Should be appreciated that these designs and application fall into this patent openly and the scope of appended claims.
Claims (3)
1. improved fluidized bed air flow crusher, comprise frame, charging (feeding) equipment, crushing and classification main body, described crushing and classification main body is provided with the grading wheel that is driven by drive unit, on the sectional view of this grading wheel that obtains along the centre rotational axis line direction of vertical described grading wheel, the plane, blade place of described grading wheel or curved surface are blade face, plane centered by centre rotational axis line by described grading wheel and the plane at described blade geometry center, it is characterized in that, form certain angle between described blade face and the described central plane.
2. fluidized bed air flow crusher according to claim 1 is characterized in that described angle is that number range is 15 °～25 ° acute angle.
3. fluidized bed air flow crusher according to claim 2 is characterized in that described angle is about 20 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101228472A CN103203270A (en) | 2013-05-23 | 2013-05-23 | Improved fluidized bed jet mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101228472A CN103203270A (en) | 2013-05-23 | 2013-05-23 | Improved fluidized bed jet mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103203270A true CN103203270A (en) | 2013-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101228472A Pending CN103203270A (en) | 2013-05-23 | 2013-05-23 | Improved fluidized bed jet mill |
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| CN (1) | CN103203270A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104107752A (en) * | 2014-08-04 | 2014-10-22 | 太仓金溪粉碎设备有限公司 | Vertical air jet pulverization rotor |
| CN118142676A (en) * | 2024-05-09 | 2024-06-07 | 中国五矿集团(黑龙江)石墨产业有限公司 | Natural graphite spheroidization device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040016834A1 (en) * | 2002-07-23 | 2004-01-29 | Xerox Corporation | Plural odd number bell-like openings nozzle device for a fluidized bed jet mill |
| CN201216998Y (en) * | 2008-06-23 | 2009-04-08 | 龙岩市亿丰粉碎机械有限公司 | Built-in grading wheel of ultrafine grinder |
| CN201988430U (en) * | 2011-01-12 | 2011-09-28 | 成都坤森微纳科技有限公司 | Fluidized bed jet mill grader |
| CN103191813A (en) * | 2013-04-10 | 2013-07-10 | 太仓金溪粉碎设备有限公司 | Improved jet mill for fluidized bed |
-
2013
- 2013-05-23 CN CN2013101228472A patent/CN103203270A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040016834A1 (en) * | 2002-07-23 | 2004-01-29 | Xerox Corporation | Plural odd number bell-like openings nozzle device for a fluidized bed jet mill |
| CN201216998Y (en) * | 2008-06-23 | 2009-04-08 | 龙岩市亿丰粉碎机械有限公司 | Built-in grading wheel of ultrafine grinder |
| CN201988430U (en) * | 2011-01-12 | 2011-09-28 | 成都坤森微纳科技有限公司 | Fluidized bed jet mill grader |
| CN103191813A (en) * | 2013-04-10 | 2013-07-10 | 太仓金溪粉碎设备有限公司 | Improved jet mill for fluidized bed |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104107752A (en) * | 2014-08-04 | 2014-10-22 | 太仓金溪粉碎设备有限公司 | Vertical air jet pulverization rotor |
| CN118142676A (en) * | 2024-05-09 | 2024-06-07 | 中国五矿集团(黑龙江)石墨产业有限公司 | Natural graphite spheroidization device |
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Application publication date: 20130717 |