CN106076562A - Fluidized bed air flow crusher - Google Patents
Fluidized bed air flow crusher Download PDFInfo
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- CN106076562A CN106076562A CN201610672571.9A CN201610672571A CN106076562A CN 106076562 A CN106076562 A CN 106076562A CN 201610672571 A CN201610672571 A CN 201610672571A CN 106076562 A CN106076562 A CN 106076562A
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- material channel
- air flow
- fluidized bed
- feeding device
- nozzle
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/06—Jet mills
- B02C19/068—Jet mills of the fluidised-bed type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/02—Feeding devices
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The invention discloses a kind of fluidized bed air flow crusher, it includes: pulverizing chamber, and the sidewall of pulverizing chamber is provided with feeding device, and in pulverizing chamber, the side corresponding with feeding device is provided with observation port；Grading room, the top of grading room is provided with power set, is provided with power output shaft and fine powder outlet in grading room, and the bottom of power output shaft is provided with grading wheel；Inlet plenum, the sidewall of inlet plenum is provided with several particle nozzles, and the bottom of inlet plenum is provided with deslagging chamber；Feeding device, feeding device includes feed hopper, is located at the material channel of feed hopper bottom, is located at the pusher nozzle on material channel top, is located at the Venturi nozzle in the middle part of material channel, is located at the dispersing device of material channel bottom.By feeding device is improved, putty, sizing phenomenon it is not susceptible in feeding device, big particle diameter material or material group quantity fall sharply, and the crush efficiency of fluidized bed air flow crusher is greatly improved, makes the adaptability of fluidized bed air flow crusher obtain obvious extension.
Description
Technical field
The present invention relates to material fining pulverize and screening installation field, particularly to a kind of fluidized bed air flow crusher.
Background technology
Powder technology is counted as supporting one of new and high technology most important basic technology of industry, after grain refine, compares table
Area is big, be evenly distributed, and shows the premium properties of many, filler, dyestuff, pigment, medicine, catalyst, Magnetic Memory element,
The aspects such as senior abrasive material, kollag, fine ceramics, cosmetics are extensively applied.The method obtaining superfine powder is mainly machine
Tool method and chemical method, chemical method is high because of complex process, cost, only uses at minority special dimension；And mechanical crushing method becomes because of it
This is low, and yield is high, and technique is simple, and can improve the advantages such as material performance and be widely adopted.Prepare the mechanical powder of superfine powder
Broken equipment mainly has high speed machine impact mill, jet mill, Ball-stirring mill and vibromill etc..And wherein jet mill with
The advantages such as its product purity height, good dispersion, fine size and narrowly distributing are the most welcome in pulverizing industry.
In the fluidized bed air flow crusher of existing use, charging hole device there will be putty, sizing phenomenon often, seriously
Affect charging rate, if these sizings process not in time, can form, at the inwall of feeding device, the stain that adhesive strength is higher, this
A little stains not only can increase the cleaning difficulty of operator, also can strong corrosion feeding device, reduce its use cycle.Meanwhile,
Owing to material particular diameter is relatively thin, specific surface area is relatively big, and agglomeration easily occurs between material, in material enters pulverizer
Time, often along with big and small material group, these materials group major part can be scattered when head-on collision is broken, and remainder branch is hitting
It is knocked closely knit during hitting, and then forms hard material group, then fall into slag-drip opening owing to crushing and discharge, and then
The crush efficiency making pulverizer is relatively low, this also be restriction fluidized bed air flow crusher popularization and application on a large scale restriction main factor it
One.
It addition, the inlet plenum of existing pulverizer is all to arrange an air intake installation, in the material that slag-drip opening is discharged, still deposit
At the material that part can crush, therefore, the crush efficiency of existing pulverizer needs to improve further.
Summary of the invention
The goal of the invention of the present invention is: for the problem of above-mentioned existence, it is provided that a kind of fluidized bed air flow crusher, passes through
Being improved feeding device, when making material enter pulverizing chamber, material group quantity falls sharply, and fluidized bed air flow crusher is greatly improved
Crush efficiency.
The technical solution used in the present invention is as follows: a kind of fluidized bed air flow crusher, and it includes:
Pulverizing chamber, the top of pulverizing chamber is provided with grading room, and bottom is provided with inlet plenum, and the sidewall of pulverizing chamber is provided with feeding device, powder
The side corresponding with feeding device, broken indoor is provided with observation port；
Grading room, the top of grading room is provided with power set, is provided with power output shaft and fine powder outlet in grading room, and power exports
The top of axle is in transmission connection with power set, and the bottom of power output shaft is provided with grading wheel, and grading wheel is placed in fine powder outlet
Bottom；
Inlet plenum, the sidewall of inlet plenum is provided with several particle nozzles, and the input of particle nozzle is connected with air compressor,
The bottom of inlet plenum is provided with deslagging chamber；
Feeding device, feeding device includes feed hopper, is located at the material channel of feed hopper bottom, is located at pushing away of material channel top
Material nozzle, is located at the Venturi nozzle in the middle part of material channel, is located at the dispersing device of material channel bottom.
Further, the particle nozzle of inlet plenum is distributed in the sidewall of inlet plenum, the spray of particle nozzle in same level
Mouth direction and plane-parallel, so that the impact velocity of material is high, can occur between material strongly to clash, improve pulverizing strong
Degree.
Further, being provided with movable louvre window at the nozzle of pusher nozzle, movable louvre window is fixedly mounted on raw material and leads to
On road.
Further, dispersing device is fixedly installed in feeding device and pulverizing chamber intersection, dispersing device include a pair mutual
Coordinate breaks up lever apparatus, breaks up fixing bar that lever apparatus includes being symmetrically fixed on material channel and is rotationally connected with raw material and leads to
The power rail in road, fixing bar is provided with some rake teeths, and one end of power rail is in transmission connection in power set, if power rail is provided with
Dry harrowing tooth, fixing bar is cooperated by rake teeth with power rail, to realize breaing up material.
As a kind of alternative, dispersing device includes the swing bar of breaing up cooperated a pair, swing breaks up bar
Being provided with some rake teeths, swing bar of breaing up is rotationally connected with on material channel, and swings up and down on material channel.
Further, in order to improve intensity and the decay resistance of dispersing device, dispersing device Fe-based amorphous alloy is combined
Material is made, Fe-based amorphous alloy composite consist of FeaAlbGacY3-dVdInxCoyBzSir, wherein a, b, c, d, x, y,
Z, r are atomic percent, 70≤a≤76,3≤b≤5, and the value of c is 0 or 2,0≤d≤3,0≤x≤1.86,8≤Co≤10, z
Value be 4 or 8,0≤r≤3.
As preferably, consisting of of Fe-based amorphous alloy composite: Fe76Al4Ga2Y3In1.86Co8B4Si1.14。
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:
1, raw material is when feed hopper enters, by the effect of pusher nozzle, pushes material to material channel, through Venturi nozzle
Effect, prevent material from piling up in material channel, enable raw material to rapidly enter in pulverizing chamber, meanwhile, in order to reduce raw material
Occur bonding and fraction to pile up at material channel inwall, wave effect by movable louvre window, make the sky of pusher nozzle
Aerodynamic force can comprehensive without dead angle ground material channel is jetted, raw material cannot material channel inwall formed bonding group and
Stain, and then decrease clearing times and cleaning difficulty, improve the use cycle of feeding device；
2, the setting of dispersing device, can roll into a ball the material in raw material the most broken breaing up, make the raw material in entrance pulverizing chamber fill
Scattering, the raw material after fully scattering is conducive to the crushing process of pulverizing chamber, decreases the formation of hard material group, and then reduces
The quantity of the most breakable big particle diameter material, enables the crushing process of pulverizer fully to carry out, pulverizer is greatly improved
Crushing efficiency；
3, dispersing device Fe-based amorphous alloy composite, compared to the ferrous materials of general high intensity, except manufacturing cost phase
To height a little outside, the intensity of Fe-based amorphous alloy composite, decay resistance and anti-wear performance are better than the steel of general high intensity
Iron material more than 2 times, its intensity is up to 2.08GPa, it is possible to ensures that dispersing device the most uninterruptedly uses, decreases replacing number of times
And the coming into operation for a long time of replacement cost, beneficially enterprise, put into that better results.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of fluidized bed air flow crusher of the present invention；
Fig. 2 is grading room and the powerplant configuration schematic diagram of the present invention；
Fig. 3 is the pulverizing chamber of the present invention, inlet plenum and deslagging chamber's structural representation；
Fig. 4 is the feeding device structural representation of the present invention；
Fig. 5 is the structural representation in A cross section in Fig. 4；
Fig. 6 is the alternative structural representation in A cross section in Fig. 4.
Labelling in figure: 1 is pulverizing chamber, 11 is observation port, and 2 is grading room, and 21 is power output shaft, and 22 export for fine powder,
23 is grading wheel, and 3 is inlet plenum, and 31 is particle nozzle, and 4 is feeding device, and 41 is feed hopper, and 42 is material channel, and 421 for pushing away
Material nozzle, 422 is movable louvre window, and 423 is Venturi nozzle, and 424 is dispersing device, and 4241 is fixing bar, and 4242 are
Power bar, 4243 is rake teeth, and 4244 is swing bar of breaing up, and 5 is power set, and 51 is motor, and 52 is reduction box, and 53 is transmission
Axle, 6 is deslagging chamber.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, right
The present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, and
It is not used in the restriction present invention.
As shown in Figures 1 to 6, a kind of fluidized bed air flow crusher, it includes:
Pulverizing chamber 1, the top of pulverizing chamber 1 is provided with grading room 2, and bottom is provided with inlet plenum 3, and the sidewall of pulverizing chamber 1 is provided with charging dress
Putting 4, in pulverizing chamber 1, the side corresponding with feeding device 4 is provided with observation port 11；
Grading room 2, the top of grading room 2 is provided with power set 5, power set 5 by motor 51, reduction box 52 and power transmission shaft 53,
The outfan of motor 51 is in transmission connection with reduction box 52, after reduction box 52 slows down, and the outfan of reduction box 52 and power transmission shaft 53
Connect, and drive power transmission shaft 53 to rotate, in grading room 2, be provided with power output shaft 21 and fine powder outlet 22, power output shaft 21
Top is in transmission connection with power set 5, i.e. power output shaft 21 is in transmission connection with power transmission shaft 53, the bottom peace of power output shaft 21
Equipped with grading wheel 23, grading wheel 23 is placed in the bottom of fine powder outlet 22；After power transmission shaft 53 drives power output shaft 21 to rotate, power
Output shaft 21 drives grading wheel 23 high-speed rotation, when pulverized material enters grading room 2 with ascending air, due to grading wheel
The high speed rotating of 23, the centrifugal force that material particles is i.e. produced by grading wheel, the centripetal force produced by air-flow viscous effect again,
When the centrifugal force that particle is subject to is more than centripetal force, coarse grain more than classification footpath returns and continues by impact comminution in pulverizing chamber 1, point
Fine grained below level footpath enters the fine powder outlet 22 on grading wheel 23 top with air-flow, and is pulverized by fine powder outlet 22 discharge
Machine, the fine powder of discharge, after collecting with the cyclone separator of fine powder outlet 22 connection and cleaner unit, obtains target product, and air-flow
After being purified by cleaner unit, discharge via air-introduced machine, it is achieved sizing screening, the process of fines collection.
Inlet plenum 3, the sidewall of inlet plenum 3 is provided with several particle nozzles 31, the input of particle nozzle 31 and air
Compressor connects, and the bottom of inlet plenum 3 is provided with deslagging chamber 6；Moving gaseouse medium in air compressor is not limited to air, according to material
The difference of character, it is also possible to select CO2、N2, He, Ar etc., such as, when pulverize material belong to sensitivity, inflammable and explosive object
Time, the moving gaseouse medium in air compressor is CO2、N2Deng, to prevent O2Enter and potential safety hazard occurs.
Feeding device 4, feeding device 4 includes feed hopper 41, is located at the material channel 42 of feed hopper 41 bottom, is located at raw material
The pusher nozzle 421 on passage 42 top, is located at the Venturi nozzle 423 in the middle part of material channel 42, is located at material channel 42 bottom
Dispersing device 424, be provided with movable louvre window 422 at the nozzle of pusher nozzle 421, movable louvre window 422 fixedly mounts
On material channel 42.The input of pusher nozzle 421 connects air compressor, the moving gaseouse medium situation in air compressor with
Particle nozzle 31 situation is identical, and when material enters material channel 42 from feed hopper 41, pusher nozzle 421 starts, and to raw material
Passage 42 is jetted, and the material in material channel 42 is moved to Venturi nozzle to the other end of material channel 42 by thrust
At 423, through the effect of Venturi nozzle 423, make in the middle part of material channel 42, easily to occur the material of blocking to promote the most forward, and
Arriving is positioned at the dispersing device 424 of material channel 42 bottom, now, if still suffering from windrow, sizing phenomenon in material channel 42
Time, by adjusting the angle of inclination of movable louvre window 422, to change pusher nozzle 421 Gas injection direction, make blowing direction
At alignment windrow, sizing, and then solve windrow, sizing phenomenon；When material is pushed to time at dispersing device 424, dispersing device
Break process broken up by 424 pairs of materials, and material, after breaing up and crushing, enters pulverizing chamber 1 dispersedly, and then thing is greatly reduced
The quantity of dough.
In the present embodiment, the particle nozzle 31 of inlet plenum 3 is distributed in the sidewall of inlet plenum 3 in same level, broken
The nozzle direction of material nozzle 31 and plane-parallel, when material enters pulverizing chamber 1, under differential pressure action, material generation fluidised form
Changing and be accelerated, accelerated material converges at the joint of multiple particle nozzles 31 being arranged in parallel, and produces violent impact
Collision friction and pulverize, being improved of vermicelli intensity, pulverized fine powder moves to the grading room 2 on top with air-flow
In, complete crushing process.
In the present embodiment, dispersing device 424 is fixedly installed in feeding device 4 and pulverizing chamber 1 intersection, dispersing device
424 include that cooperate breaks up lever apparatus a pair, break up the fixing bar that lever apparatus includes being symmetrically fixed on material channel 42
4241 and be rotationally connected with the power rail 4242 of material channel 42, fixing bar 4241 is provided with some rake teeths 4243, power rail
One end of 4242 is in transmission connection in power set, and power rail 4242 is provided with some rake teeths 4243, fixing bar 4241 and power rail
4242 are cooperated by rake teeth 4243, and the rake teeth 4243 of the rake teeth 4243 and power rail 4242 of i.e. fixing bar 4241 intersects
Placing, when material enters at dispersing device 424, power rail 4242 rotates, and the rake teeth 4243 on power rail 4242 is at fixing bar
Interting and mistake between the rake teeth 4243 of 4241, in material, fines is then from the rake teeth 4243 of power rail 4242 and fixing bar 4241
Gap location between rake teeth 4243 passes, and the material of big particle diameter or material group are then broken up broken under the extruding of rake teeth 4243,
And then become fines through rake teeth 4243, it is achieved that break up shattering process.
In the present embodiment, as a kind of alternative, what dispersing device 424 included a pair cooperating swing breaks up
Bar 4244, swing bar 4244 of breaing up is provided with some rake teeths 4243, and swing bar 4244 of breaing up is rotationally connected with material channel
On 42, and swing up and down on material channel 42.In like manner, swing bar 4244 of breaing up mutually does opposing oscillatory, and wherein one
Individual when being swung up, another then does swung downward, with this repeatedly, and then by the way of extruding by the material of big particle diameter or
Material group breaks up broken, it is preferable that the swing oscillator arc breaing up bar 4244 controls in the range of acute angle, preferably 30 °-
Between 60 °, break up efficiency to improve, prevent material leakage and spatter material.
In the present embodiment, in order to improve intensity and the decay resistance of dispersing device 424, dispersing device 424 uses iron-based
Amorphous alloy composite material is made, and the composition formula of Fe-based amorphous alloy composite is FeaAlbGacY3-dVdInxCoyBzSir,
Wherein a, b, c, d, x, y, z, r are atomic percent, 70≤a≤76,3≤b≤5, and the value of c is 0 or 2,0≤d≤3,0≤x≤
1.86,8≤Co≤10, the value of z is 4 or 8,0≤r≤3.Preferably, the consisting of of Fe-based amorphous alloy composite
Fe76Al4Ga2Y3In1.86Co8B4Si1.14, naturally it is also possible to it is Fe72Al5Ga2V3Co10B8、Fe70Al3Ga2Y1.63 V1.37In1
Co10B8Si3、Fe76Al5Y1.47V1.53Co9B4Si3And Fe74Al3V3In1.54Co9B8Si1.46Deng, its preparation method includes following step
Rapid:
Step one, raw material prepare, and taking purity respectively is 99.99%, and granularity is the Fe powder of 40 μm, and purity is 99.5%, and granularity is 80 μ
The Al powder of m, purity is 99%, and granularity is the Ga powder of 80 μm, and purity is 99%, and granularity is the Y powder of 75 μm, and purity is 99.5%, granularity
Being the V powder of 75 μm, purity is 97.5%, and granularity is the In powder of 120 μm, and purity is 98.5%, and granularity is the Co powder of 75 μm, and purity is
99.9%, granularity is the B powder of 15 μm and purity is 99.9%, and granularity is the Si powder of 75 μm, is made into name alloy by atomic percent
Composition, is then placed in together with the sintered carbide ball of a diameter of 8mm in planetary type ball-milling tank and carries out ball milling, and before ball milling, ball grinder is wanted
Evacuation processes, and when vacuum reaches 0.5Pa in ball grinder, is filled with the argon of 1MPa in ball grinder, ball mill during ball milling
Rotating speed is 300r/min, and ball powder mass ratio is 25:1, and Ball-milling Time is 150h, obtains iron-based amorphous powder；
Step 2, being placed in heat-treatment furnace by the iron-based amorphous powder obtained and make annealing treatment, annealing temperature is 550 DEG C, heats up
Speed is 20 DEG C/min, and annealing time is 1h, the iron-based amorphous powder after being annealed；
Iron-based amorphous powder after step 3, the annealing that will obtain is placed in thermal conductivity more than 30W/(m K) sintered-carbide die
In, assemble mould, then mould is placed in discharging plasma sintering equipment and carries out high-pressure sinter, extraction agglomerating chamber before sintering
Interior vacuum is to 0.5Pa, and during sintering, sintering pressure is 500MPa, and sintering temperature is 950 DEG C, and heating rate is 90 DEG C/min, protects
Temperature 8min, is finally quickly cooled to room temperature.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any amendment, equivalent and the improvement etc. made within god and principle, should be included within the scope of the present invention.
Claims (7)
1. a fluidized bed air flow crusher, it is characterised in that it includes:
Pulverizing chamber, the top of pulverizing chamber is provided with grading room, and bottom is provided with inlet plenum, and the sidewall of pulverizing chamber is provided with feeding device, powder
The side corresponding with feeding device, broken indoor is provided with observation port；
Grading room, the top of grading room is provided with power set, is provided with power output shaft and fine powder outlet in grading room, and power exports
The top of axle is in transmission connection with power set, and the bottom of power output shaft is provided with grading wheel, and grading wheel is placed in fine powder outlet
Bottom；
Inlet plenum, the sidewall of inlet plenum is provided with several particle nozzles, and the bottom of inlet plenum is provided with deslagging chamber；
Feeding device, feeding device includes feed hopper, is located at the material channel of feed hopper bottom, is located at pushing away of material channel top
Material nozzle, is located at the Venturi nozzle in the middle part of material channel, is located at the dispersing device of material channel bottom.
2. fluidized bed air flow crusher as claimed in claim 1, it is characterised in that the particle nozzle of inlet plenum is in same level
The sidewall of inlet plenum, the nozzle direction of particle nozzle and plane-parallel it is distributed on face.
3. fluidized bed air flow crusher as claimed in claim 2, it is characterised in that be provided with movable at the nozzle of pusher nozzle
Shutter, movable louvre window is fixedly mounted on material channel.
4. fluidized bed air flow crusher as claimed in claim 3, it is characterised in that dispersing device is fixedly installed in feeding device
With pulverizing chamber intersection, dispersing device includes that cooperate breaks up lever apparatus a pair, breaks up lever apparatus and includes being symmetrically fixed on
Fixing bar on material channel and the power rail being rotationally connected with material channel, fixing bar is provided with some rake teeths, power rail
One end is in transmission connection in power set, and power rail is provided with some rake teeths, and fixing bar is cooperated by rake teeth with power rail, with
Realize material is broken up.
5. fluidized bed air flow crusher as claimed in claim 4, it is characterised in that dispersing device includes a pair cooperating
Swing bar of breaing up, swing bar of breaing up is provided with some rake teeths, and swing bar of breaing up is rotationally connected with on material channel, and
Swing up and down on material channel.
6. the fluidized bed air flow crusher as described in one of claim 1-5, it is characterised in that the Fe-based amorphous conjunction of dispersing device
Metal/composite material is made, Fe-based amorphous alloy composite consist of FeaAlbGacY3-dVdInxCoyBzSir, wherein a, b, c,
D, x, y, z, r are atomic percent, 70≤a≤76,3≤b≤5, and the value of c is 0 or 2,0≤d≤3,0≤x≤1.86,8≤Co
The value of≤10, z is 4 or 8,0≤r≤3.
7. fluidized bed air flow crusher as claimed in claim 6, it is characterised in that the composition of Fe-based amorphous alloy composite
For: Fe76Al4Ga2Y3In1.86Co8B4Si1.14。
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| CN110505922A (en) * | 2017-03-27 | 2019-11-26 | Lpt有限公司 | For crushing and drying waste material, residue, rock and the equipment of similar material |
| CN112473964A (en) * | 2020-12-08 | 2021-03-12 | 周如均 | Fluidized bed fluid energy mill |
| WO2021062648A1 (en) * | 2019-09-30 | 2021-04-08 | 江西荧光磁业有限公司 | Graded high-precision neodymium iron boron jet mill |
| US11046481B2 (en) | 2017-03-23 | 2021-06-29 | Alpla Werke Alwin Lehner Gmbh & Co. Kg | Stand sleeve for a plastic container capable of withstanding internal pressure |
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| US11046481B2 (en) | 2017-03-23 | 2021-06-29 | Alpla Werke Alwin Lehner Gmbh & Co. Kg | Stand sleeve for a plastic container capable of withstanding internal pressure |
| CN110505922A (en) * | 2017-03-27 | 2019-11-26 | Lpt有限公司 | For crushing and drying waste material, residue, rock and the equipment of similar material |
| CN110505922B (en) * | 2017-03-27 | 2022-04-08 | Lpt有限公司 | Device for comminuting and drying waste, residues, rocks |
| CN109261282A (en) * | 2018-08-30 | 2019-01-25 | 李斌宇 | A kind of dedicated milling apparatus of bio-pharmaceuticals |
| WO2021062648A1 (en) * | 2019-09-30 | 2021-04-08 | 江西荧光磁业有限公司 | Graded high-precision neodymium iron boron jet mill |
| CN112473964A (en) * | 2020-12-08 | 2021-03-12 | 周如均 | Fluidized bed fluid energy mill |
| CN119217581A (en) * | 2024-10-22 | 2024-12-31 | 杭州中平化工有限公司 | A jet mill device for producing PBS modified plastic masterbatch and its production process |
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| CN106076562B (en) | 2018-09-18 |
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