CN203711107U - Grinding structure of environment-friendly energy-saving type eddy pulverizer - Google Patents
Grinding structure of environment-friendly energy-saving type eddy pulverizer Download PDFInfo
- Publication number
- CN203711107U CN203711107U CN201420016555.0U CN201420016555U CN203711107U CN 203711107 U CN203711107 U CN 203711107U CN 201420016555 U CN201420016555 U CN 201420016555U CN 203711107 U CN203711107 U CN 203711107U
- Authority
- CN
- China
- Prior art keywords
- abrading block
- negative pressure
- grinding
- pressure surface
- suction surface
- 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
Links
Landscapes
- Crushing And Grinding (AREA)
Abstract
The utility model discloses a grinding structure of an environment-friendly energy-saving type eddy pulverizer. The grinding structure comprises a grinding cavity, a rotating body arranged in the grinding cavity and a plurality of grinding blocks uniformly distributed on the outer peripheral surface of the rotating body circumferentially, wherein one surface of the grinding block in a rotating direction is a positive pressure surface, the other surface of the grinding block is a negative pressure surface, and the positive pressure surface is on the front surface and the negative pressure surface is on the back surface in a rotating direction; a negative pressure plate is arranged on the negative pressure surface, and one side of the negative pressure plate, opposite to the negative pressure surface of the grinding block, is away from the negative pressure surface of the grinding block by certain distance; when the rotating body drives the grinding block to rotate at high speed, air flows in a direction perpendicular to a tangential direction and air flows caused by pressure difference between the positive pressure surface and the negative pressure surface of the grinding block in a radially circumferential direction are intersected to generate eddy which acts on the working surface of the grinding cavity; as the air flows caused by pressure difference between the positive pressure surface and the negative pressure surface of the grinding block in a radially circumferential direction are at high speed, materials can be violently impacted and autogenously ground under the high-speed high-strength eddy action, thereby achieving effective grinding.
Description
Technical field
The utility model relates to technical field of powder engineering, particularly a kind of abrasive dust structure of various materials being carried out to the environment-friendly and energy-efficient eddy mill of ultra-fine grinding.This abrasive dust structure is not only for leading-edge fields such as military project, space flight, and extensively applied in different industries, as chemical industry, electronics, machinery, metallurgical building materials, plastics, rubber, food, medicine, papermaking, daily use chemicals, the energy, the relevant industries such as super-fine processing of environmental protection, nonmetallic materials.
Background technology
Ultrafine powder technology is called cross-centennial new and high technology by domestic and international scientific and technological circle.
Along with developing rapidly of science and technology, the research of superfine material and nano material application, has broad application prospects, and to promoting industrial technology progress, has extremely important effect.Generally by 10 microns, with thin powder, be called superfine powder, 1 micron is called superfine material with thin powder, and 0.1 micron is called nano material with thin powder.
Production equipment and the technology of super-fine material mainly contain at present: mechanical impact crusher, airslide disintegrating mill and oscillating mill etc.The general character of these technical equipment is to break the problems such as mill Limit Grain Size can only reach 5 microns of left and right, and the suitability for industrialized production that reach super-fine material also has certain technology and technology difficulty, and ubiquity yields poorly, energy consumption is high, and environmental-protecting performance is poor, powder purity is lower.
Airslide disintegrating mill is current more advanced ultra-fine equipment in the world, mainly contains following several types: 1. flat air flow crusher; 2. circulating airslide disintegrating mill; 3. pair spray formula airslide disintegrating mill; 4. target formula airslide disintegrating mill; 5. fluidized bed airflow pulverizer etc.; The jet powder that has BJ University of Aeronautics & Astronautics and the classifying equipoment (model JFC-30) of current key popularized project, working media is compressed air, gas consumption 15m
3/ min, power 170kW, feed size 0.5mm, product grading 2-8 micron, fineness of materials d50 can only reach 2-40 micron, output 30kg/ hour.Also have Beijing San Huan powder High-tech company of Chinese Academy of Sciences fluidized bed jet mill, fineness of materials d50 can only reach 2-40 micron.According to another < < ultra-fine grinding classification technique > > (China Light Industry Press, calendar year 2001 publish) bibliographical information: there are the following problems for airslide disintegrating mill: 1, energy consumption is large, production efficiency is low.2, output is less, is generally no more than 100kg/h, and major part is less than 50kg/h.3, preparation superfine powder is also more difficult.4, airslide disintegrating mill complex structure, expensive.For above problem, airflow pulverization is currently not advanced.
Mechanical impact crusher and vibration medium grinder are a kind of more traditional mechanical grinding equipment, and mechanical type is many.Its mechanism is to utilize the direct drive medium of mechanical energy to move comminuting matter, and crushing effect is also very low, and difficulty reaches powder purity requirement, and it is poor that powder fineness is compared airflow milling.For example vibrating medium grinder and effectively pulverize power and be about 0.3%, is heat and loss and be about 98% Conversion of Energy.Airslide disintegrating mill is to utilize up to velocity of sound or subsonic air-flow to penetrate energy comminuting matter.And mechanical energy is converted to velocity of sound air motion energy, and need to consume a large amount of energy, the former is larger for its energy consumption work ratio.
The technology of preparing of superfine material (submicron order), the current report of also not finding to have this respect both at home and abroad, it was reported that superfine material is a kind of bottleneck material being limited between super-fine material and nano material, does not also have technology of preparing to produce at present.
The technology of preparing of super nano material at present report is many, mainly uses chemical method preparation, has solid phase method, liquid phase method, vapor phase method and plasma method, laser method etc.Separately have report to discuss, the nano material that adopts chemical method to produce, tends to change the physical property of material itself, does not reach the result of use of nano material, and agglomeration traits is difficult to solve, and production efficiency is low, processing cost costliness.Can only produce in laboratory at present, cannot realize suitability for industrialized production.
For required ultrafine powder and the nano-powder of energy High-efficient Production, China Patent Publication No. CN1929925B discloses a kind of high energy turbulence mill and two negative pressure worm gear thereof, the two negative pressure worm gears of its critical component comprise that Ye Panhe is arranged on a plurality of blades of these two sides of leaf dish, wherein this blade in each side of this leaf dish along circumferential uniform distribution, and rotation direction is identical, the blade that is positioned at this side of leaf dish is wrong next towards each other along week with the blade that is positioned at this leaf dish another side; This pair of negative pressure worm gear also has a plurality of impact tooth plates, each impacts tooth plate and comprises that an installation portion is connected the operate portions of this installation portion with one, at the top of this operate portions, be formed with paired impact teeth, two impact teeth in every impact tooth with tooth top relatively away from mode tilt.When this pair of negative pressure worm gear is in mill chamber during High Rotation Speed, can produce high-strength eddy current and turbulent flow mill chamber is inner, thereby form Dual-Phrase Distribution of Gas olid, material is under the effect of high turbulence, mutually there is strong autogenous grinding, produce strong head-on collision and shear force simultaneously, thereby material is pulverized effectively.The high energy turbulence mill product grading forming with this pair of negative pressure worm gear reaches 0.1-0.9 μ m.
The mechanism of this pair of negative pressure worm gear turbulization is: because bi-negative pressure turbine is to impact tooth plate by left and right throwing arc hypsokinesis blade and swallow-tail form to be assembled, blade is scalene cone and has formed whirlpool shape near one end of sharf simultaneously, two eddy current when High Rotation Speed, have been formed, two eddy current have produced again two negative pressure, the generation of two negative pressure has formed again high-strength centrifugal force, when pulverized solid material is in high turbulence factory in mill chamber, just formed Dual-Phrase Distribution of Gas olid, the turbulence energy obtaining from worm gear, by effect of inertia, by Maelstrom, pass to step by step little whirlpool, material produces strong shock in this turbulent motion, autogenous grinding, shear force, thereby material is pulverized effectively, in addition, stator guiding gear ring produces the guiding shearing force to material in mill chamber, powder is in zigzag turbulent motion region, produce each other strong autogenous grinding, accelerate effective refinement of material.But this pair of negative pressure worm gear needs higher rotating speed, therefore very high to the requirement of motor and blade, impact tooth plate intensity, energy consumption is also higher simultaneously.Also more complicated of this pair of negative pressure worm gear arrangement in addition.
Utility model content
Technical problem to be solved in the utility model is for shortcomings and deficiencies of the prior art, provide a kind of energy-conservation, simple in structure, the abrasive dust structure of the environment-friendly and energy-efficient eddy mill of good crushing effect, the eddy current producing after the air-flow of the radial circumference direction producing perpendicular to the air-flow of tangential motion direction and the pressure surface of abrading block to the pressure reduction between suction surface that this abrasive dust structure utilizes that abrading block produces when High Rotation Speed intersects, act in the mill chamber of working face, make material in mill chamber at a high speed, under high-intensity eddy current effect, produce strong head-on collision, autogenous grinding, thereby material is effectively pulverized.
The technical problem that the utility model solves can realize by the following technical solutions:
The abrasive dust structure of environment-friendly and energy-efficient eddy mill, comprise mill chamber and the some abrading blocks that are arranged in the rotor in described mill chamber and are circumferentially distributed on described rotor outer peripheral face, it is characterized in that, described abrading block is pressure surface along the one side of direction of rotation, another side is suction surface, wherein, from direction of rotation, pressure surface is front, and suction surface is rear; On described suction surface, be provided with a negative pressure plate, between the side of suction surface of the relatively described abrading block of described negative pressure plate and the suction surface of described abrading block, there is certain interval.
In a preferred embodiment of the present utility model, between the bottom of described negative pressure plate and the root of abrading block, leave certain distance.
In a preferred embodiment of the present utility model, the pressure surface of a certain abrading block forms the malleation chamber of relative this abrading block with see the region between the suction surface of last abrading block along abrading block direction of rotation, the suction surface of this abrading block and the negative pressure cavity of seeing relative this abrading block of region formation between the pressure surface of an abrading block afterwards along abrading block direction of rotation.
In a preferred embodiment of the present utility model, the side of suction surface of the relatively described abrading block of described negative pressure plate and the flow area at the interval between the suction surface of described abrading block are less than long-pending 10～1000 times of the circumferential cross-section in described malleation chamber.
In a preferred embodiment of the present utility model, the pressure surface of described abrading block is less than the suction surface of this abrading block with respect to the interior angle of described rotor periphery with respect to the interior angle of rotor periphery.
In a preferred embodiment of the present utility model, the inner cavity surface of described mill chamber is provided with gear ring, and the end face of described abrading block, along being circumferentially evenly equipped with some helical teeth, leaves certain gap between the tooth top of described gear ring and the tooth top of described helical teeth.
In a preferred embodiment of the present utility model, described abrading block is comprised of support portion and wear-resisting portion, and described wear-resisting portion is arranged on the top of described support portion, and the top of described wear-resisting portion is along being circumferentially evenly equipped with some helical teeth.
The advantage of operation principle of the present utility model is: when rotor band dynamic grinding block High Rotation Speed, on the working face of the eddy current effect mill chamber producing after the air-flow of the radial circumference direction producing perpendicular to the air-flow of tangential direction and the pressure surface of abrading block to the pressure reduction between negative pressure plate producing intersects, the speed of the air-flow of the radial circumference direction producing due to pressure surface to the pressure reduction between negative pressure plate is very high, can reach 500km/h, even be greater than 1000km/h, make material in mill chamber at a high speed, under high-intensity eddy current effect, produce strong head-on collision, autogenous grinding, thereby material is effectively pulverized.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the axial front view of the abrasive dust structure of the utility model environment-friendly and energy-efficient eddy mill.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Shown in Figure 1, the abrasive dust structure of environment-friendly and energy-efficient eddy mill comprises the mill chamber 100 being surrounded by outer cylinder body 1, in mill chamber 100, be in axial direction furnished with armature spindle 200, on the outer peripheral face 210 of armature spindle 200, be circumferentially evenly equipped with six abrading blocks 300, each abrading block 300 is comprised of support portion 310 and wear-resisting portion 320, support portion 310 is fixed on the outer peripheral face 210 of armature spindle 200, wear-resisting portion 320 is fixed on the top of support portion 310, and the top of wear-resisting portion 320 is along being circumferentially evenly equipped with some helical teeth 321.And the inner cavity surface of mill chamber 100 is provided with gear ring 101, between the tooth top of the helical teeth 321 at the tooth top of gear ring 101 and wear-resisting portion 320 tops, leave certain gap to form gas channel 102.
Abrading block 300 is pressure surface 301 along the one side of direction of rotation, and another side is suction surface 302, and wherein from direction of rotation, pressure surface 301 is front, and suction surface 302 is rear.On suction surface 302, be provided with a negative pressure plate 400, between the side 401 of negative pressure plate 400 relative suction surfaces 302 and suction surface 302, there is certain interval to form through-flow channel 410.Between the bottom of negative pressure plate 400 and the root of abrading block 300, leave certain distance to form high velocity air outlet 420.
The pressure surface 301 of each abrading block 300 forms the malleation chamber 110 of relative this abrading block 300 with see the region between the suction surface 302 of last abrading block 300 along abrading block 300 direction of rotation, the suction surface 302 of this abrading block 300 and the negative pressure cavity 120 of seeing relative this abrading block 300 of region formation between the pressure surface 301 of an abrading block 300 afterwards along abrading block 300 direction of rotation.The flow area of through-flow channel 410 is less than long-pending 10～1000 times of the circumferential cross-section in malleation chamber 110, so the air velocity producing when air-flow flows to negative pressure cavity 120 in malleation chamber 110 via through-flow channel 410 is very high.
In order to make abrading block 300 more easily produce high velocity air in rotary course, the pressure surface 301 of abrading block 300 is less than the suction surface 302 of this abrading block 300 with respect to the interior angle of armature spindle 200 peripheries with respect to the interior angle of armature spindle 200 peripheries 210.
The advantage of operation principle of the present utility model is: when armature spindle 200 band dynamic grinding block 300 High Rotation Speed, on the working face of the eddy current effect mill chamber 100 producing after the air-flow of the radial circumference direction that the air-flow perpendicular to tangential direction producing and the pressure surface 301 of abrading block 300 to the pressure reduction between negative pressure plate 400 produce intersects, wherein air flow direction is as shown in filled arrows direction in figure.The flow area of through-flow channel 410 is less than long-pending 10～1000 times of the circumferential cross-section in malleation chamber 110, so the speed of the air-flow of the radial circumference direction that pressure surface 301 to the pressure reduction between negative pressure plate 400 produces is very high, can reach 500km/h, even be greater than 1000km/h, make material in mill chamber 100 at a high speed, under high-intensity eddy current effect, produce strong head-on collision, autogenous grinding, thereby material is effectively pulverized.
The utility model can be as the pulverizing abrasive dust structure of multiple fields, and power consumption of the present utility model is low, its power consumption is 20～50% of general high velocity turbulent flow mill, energy-conservation to 50～80%, and less demanding to armature spindle 200 rotating speeds, general rotating speed requires to reach significant crushing effect.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and description, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (7)
1. the abrasive dust structure of environment-friendly and energy-efficient eddy mill, comprise mill chamber and the some abrading blocks that are arranged in the rotor in described mill chamber and are circumferentially distributed on described rotor outer peripheral face, it is characterized in that, described abrading block is pressure surface along the one side of direction of rotation, another side is suction surface, wherein, from direction of rotation, pressure surface is front, and suction surface is rear; On described suction surface, be provided with a negative pressure plate, between the side of suction surface of the relatively described abrading block of described negative pressure plate and the suction surface of described abrading block, there is certain interval.
2. the abrasive dust structure of environment-friendly and energy-efficient eddy mill as claimed in claim 1, is characterized in that, between the bottom of described negative pressure plate and the root of abrading block, leaves certain distance.
3. the abrasive dust structure of environment-friendly and energy-efficient eddy mill as claimed in claim 2, it is characterized in that, the pressure surface of a certain abrading block forms the malleation chamber of relative this abrading block with see the region between the suction surface of last abrading block along abrading block direction of rotation, the suction surface of this abrading block and the negative pressure cavity of seeing relative this abrading block of region formation between the pressure surface of an abrading block afterwards along abrading block direction of rotation.
4. the abrasive dust structure of environment-friendly and energy-efficient eddy mill as claimed in claim 3, it is characterized in that, the side of suction surface of the relatively described abrading block of described negative pressure plate and the flow area at the interval between the suction surface of described abrading block are less than long-pending 10～1000 times of the circumferential cross-section in described malleation chamber.
5. the abrasive dust structure of environment-friendly and energy-efficient eddy mill as claimed in claim 4, is characterized in that, the pressure surface of described abrading block is less than the suction surface of this abrading block with respect to the interior angle of described rotor periphery with respect to the interior angle of rotor periphery.
6. the abrasive dust structure of environment-friendly and energy-efficient eddy mill as claimed in claim 5, it is characterized in that, the inner cavity surface of described mill chamber is provided with gear ring, and the end face of described abrading block, along being circumferentially evenly equipped with some helical teeth, leaves certain gap between the tooth top of described gear ring and the tooth top of described helical teeth.
7. the abrasive dust structure of the environment-friendly and energy-efficient eddy mill as described in claim as arbitrary in claim 1 to 6, it is characterized in that, described abrading block is comprised of support portion and wear-resisting portion, and described wear-resisting portion is arranged on the top of described support portion, and the top of described wear-resisting portion is along being circumferentially evenly equipped with some helical teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420016555.0U CN203711107U (en) | 2014-01-12 | 2014-01-12 | Grinding structure of environment-friendly energy-saving type eddy pulverizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420016555.0U CN203711107U (en) | 2014-01-12 | 2014-01-12 | Grinding structure of environment-friendly energy-saving type eddy pulverizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203711107U true CN203711107U (en) | 2014-07-16 |
Family
ID=51150309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420016555.0U Expired - Fee Related CN203711107U (en) | 2014-01-12 | 2014-01-12 | Grinding structure of environment-friendly energy-saving type eddy pulverizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203711107U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103752387A (en) * | 2014-01-12 | 2014-04-30 | 上海红箭自动化设备有限公司 | Powder grinding structure of environment-friendly and energy-saving type eddy current pulverizer |
-
2014
- 2014-01-12 CN CN201420016555.0U patent/CN203711107U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103752387A (en) * | 2014-01-12 | 2014-04-30 | 上海红箭自动化设备有限公司 | Powder grinding structure of environment-friendly and energy-saving type eddy current pulverizer |
| CN103752387B (en) * | 2014-01-12 | 2016-02-10 | 上海红箭自动化设备有限公司 | The abrasive dust structure of environment-friendly and energy-efficient eddy mill |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103752388B (en) | Environment-friendly and energy-efficient eddy mill | |
| WO2005089948A1 (en) | High turbulence mill and its bi-negative pressure turbine | |
| CN1929925B (en) | High turbulence mill and its bi-negative pressure turbine | |
| CN103752387B (en) | The abrasive dust structure of environment-friendly and energy-efficient eddy mill | |
| CN108906272B (en) | High-speed grinding mill of three blade disc mechanical impact of servo drive | |
| CN203711108U (en) | Environmentally-friendly and energy-saving type eddy pulverizer | |
| CN1295021C (en) | Mechanical turbulence milling tools | |
| CN201659002U (en) | Hammer mill with built-in feeding fan and rotating screen | |
| US10792669B2 (en) | Counter-impact jet milling mechanism and jet mill using the same | |
| CN201055800Y (en) | Double-turntable clash type pulverizer | |
| CA2774862A1 (en) | Pulverizer | |
| CN202962608U (en) | Crushing device and crushing system | |
| CN203711107U (en) | Grinding structure of environment-friendly energy-saving type eddy pulverizer | |
| CN204583418U (en) | A kind of nonmetal super fine crushing device | |
| CN202377047U (en) | Wood flour grinder | |
| CN101816969A (en) | Hammer type crusher internally provided with feeding fan and rotary screen | |
| CN201454634U (en) | Multilevel circulating pulverizer | |
| CN202377039U (en) | Hammerhead type crushing machine | |
| CN208244887U (en) | A kind of disintegrating apparatus for new material processing | |
| CN2803519Y (en) | Burgy appts | |
| CN202377037U (en) | Classification grinder | |
| CN205253275U (en) | High speed cutting rubbing crusher cutting head | |
| CN203663958U (en) | High-grease material smashing device | |
| CN203370618U (en) | Multifunctional efficient grinder | |
| CN2478678Y (en) | Cyclone mill |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20200112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |