CN106694366A - Large micron classifier - Google Patents

Large micron classifier Download PDF

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Publication number
CN106694366A
CN106694366A CN201710018742.0A CN201710018742A CN106694366A CN 106694366 A CN106694366 A CN 106694366A CN 201710018742 A CN201710018742 A CN 201710018742A CN 106694366 A CN106694366 A CN 106694366A
Authority
CN
China
Prior art keywords
housing
area
grader
air inlet
fine powder
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.)
Pending
Application number
CN201710018742.0A
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Chinese (zh)
Inventor
吴建明
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 Miyou Powder New Equipment Manufacturing Co Ltd
Original Assignee
Jiangsu Miyou Powder New Equipment Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiangsu Miyou Powder New Equipment Manufacturing Co Ltd filed Critical Jiangsu Miyou Powder New Equipment Manufacturing Co Ltd
Priority to CN201710018742.0A priority Critical patent/CN106694366A/en
Publication of CN106694366A publication Critical patent/CN106694366A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B11/00Arrangement of accessories in apparatus for separating solids from solids using gas currents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B11/00Arrangement of accessories in apparatus for separating solids from solids using gas currents
    • B07B11/02Arrangement of air or material conditioning accessories
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B11/00Arrangement of accessories in apparatus for separating solids from solids using gas currents
    • B07B11/06Feeding or discharging arrangements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B7/00Selective separation of solid materials carried by, or dispersed in, gas currents
    • B07B7/01Selective separation of solid materials carried by, or dispersed in, gas currents using gravity
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B7/00Selective separation of solid materials carried by, or dispersed in, gas currents
    • B07B7/08Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force
    • B07B7/083Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force generated by rotating vanes, discs, drums, or brushes

Abstract

The invention provides a large micron classifier; the large micron classifier adopts a mode of combining the gravity classification, the free eddy current classification and the forced eddy current classification; particles can be totally dispersed in air currents before classification, so that the air current field is stable; and the whole classifier can classify a lot of materials to achieve high sorting efficiency and low production cost. A shell includes a free eddy current area, a forced eddy current area, a middle transition area and an upper classification area arranged in sequence from bottom to top; the bottom of the free eddy current area is a coarse powder discharge port closed from top to bottom; a first feed port and a natural intake port are respectively formed in a conical surface of the free eddy current area; a discharge shell is arranged in the center position of the upper classification area, and is fixedly mounted in the center position of the lower end surface of a top plate of the shell; and a fine powder discharge pipe is arranged in the center position of the discharge shell from bottom to top.

Description

A kind of large-scale micrometer grader
Technical field
The present invention relates to the technical field of stock grading, specially a kind of large-scale micrometer grader.
Background technology
Gas flow sizing machine is widely used in chemical industry, mineral, metallurgy, abrasive material, ceramics, refractory material, medicine, agricultural chemicals, food Etc. industry.Material enters its inner chamber under the wind-force effect of air inducing unit by the charging aperture of gas flow sizing machine lower end, and with upper The supreme portion's graded region of air-flow high-speed motion is risen, under the powerful centrifugal action of the sorting unit generation of high speed rotation, makes thickness Feed separation, the fine grained for meeting Particle size requirements enters discharge chamber by sorting unit impeller clearance, and is exported by discharging opening, slightly Speed disappears after particle hits wall, is dropped to along barrel and discharged at discharge port.With the development of society, the granularity requirements of product are more next It is higher, and energy-conserving and environment-protective also turn into primary requirement of the industry-by-industry to equipment.However, existing gas flow sizing machine airflow field is mixed Disorderly, distribution of air flow is unreasonable, and so as to cause effectiveness of classification not high, fineness not enough, while the sealing structure of equipment is unreasonable, is sorted Efficiency is low, and the distinct issues such as energy consumption is high, production cost also accordingly increases.Existing classification motor and classifying turbine are by connection Axle device carries out direct-connected, due to needing the position of extra arrangement classification motor, causes the housing floor space of whole grader big, enters And limiting the quantity arrangement of classifying turbine of knowing clearly so that whole grader can not carry out extensive material treatment.
The content of the invention
Regarding to the issue above, the invention provides a kind of large-scale micrometer grader, it uses gravity, free vortex flow and pressure Swirl classifying is combined mode, and the particle before classification can be completely dispersed in the gas flow, and it causes airflow field stabilization, and whole classification Function is largely classified material so that the efficiency of separation is high, low production cost.
A kind of large-scale micrometer grader, it is characterised in that:It is free vortex flow area that housing includes sequentially arranging from bottom to top, strong Vortex processed, middle part transition region, top graded region, the bottom in the free vortex flow area are the meal blanking from up to down closed up Mouthful, first charging aperture, natural air inlet mouth, the center of the top graded region are respectively arranged with the conical surface in the free vortex flow area Position is provided with discharging housing, and the discharging housing is installed in the center of the lower surface of the top board of the housing, it is described go out The center of material shell body is provided with the fine powder discharge nozzle arranged from bottom to top, and the bottom outer ring surface of the fine powder discharge nozzle is uniform The radial outer end for having many pan feeding passages for extending radially outwardly, the pan feeding passage is provided with outer shroud installing plate, the fine powder The convex top board in housing of discharge nozzle, the fine powder discharge nozzle is located at the center of the top board of the housing, the top board Upper end face ring is furnished with six motors, and the output end of each motor is connected to positioned at the housing sidewall position by belt respectively The input of bearing block, the output end of the bearing block is located at the inside of the top graded region of the housing, each described bearing The output end of seat is respectively installed with grading wheel, and the inner end plate of the grading wheel is installed in the outer shroud installing plate of correspondence position respectively, The motor, pan feeding passage, bearing block, respectively each six of the quantity of grading wheel, one-to-one corresponding and each correspondence arrangement installation.
It is further characterized by:
The forced vortex area is the circular cone structure for closing up from bottom to top, and the outer ring surface in the forced vortex area is provided with Circular air inlet pipe, the exit of the circular air inlet pipe is connected to the outer shroud air inlet in the forced vortex area by oblique blade, The air intake sets and causes that the wind speed for entering forced vortex area becomes big, and because the pipeline of the circular cone structure for closing up from bottom to top sets Put so that material forced vortex area by fully diffusion, then diffuse up;
The transition region is the rounding frustum structure of enlarging from bottom to top, and it is easy to material uniformly to spread upwards;
The top graded region is cylindrical structural, and the lower section of the top graded region sets near the position of the transition region It is equipped with and is respectively provided with observation window construction, second charging aperture, the observation window is for observing material mixing situation, to adjust annular The blast of blast pipe and the charging situation of charging aperture;
The second charging aperture is circumscribed with charging transition conduit obliquely, and the upper part of the charging transition conduit is vertical End, it ensures that material can be then equal in the presence of the air-flow of lower end by the smooth cavity for entering into top graded region of gravity Even diffusion;
The top board is provided with the first air inlet, and first air inlet is communicated to the discharging housing, fine powder discharge nozzle The transitional cavity that is constituted of outer wall in;
Mounting flange on the shell of each bearing block, the mounting flange is fastenedly connected the corresponding position of housing sidewall Put, the inner chamber of the bearing block is provided with air-tight structure, prevent from being mixed into particle or oily pollution material in bearing, it is ensured that the bearing longevity Life and safe handling.
After the present invention, material enters grader, and first in forced vortex area, external wind is acted on material pneumatic jig, is made Particle is fully dissipated, and rises to graded region, and material is classified in graded region by grading wheel, does not reach the coarse grain of requirement along container Wall is screwed off to free turbine area, and extraneous natural wind is rectified into homogeneous eddy flow, will mix or stick to the particulate point in meal From the coarse grain after separation is discharged from bottom coarse grain mouthful, and the particulate for reaching requirement is received with trap is finally entered in air current classifying wheel Collection, packaging, gas is discharged from air-introduced machine after purification;It uses the classification of gravity, free vortex flow and forced vortex to be combined mode, point Particle before level can be completely dispersed in the gas flow, and it causes airflow field stabilization, and whole classification function is largely classified material so that The efficiency of separation is high, low production cost;And due to being transmitted by belt, bearing block between motor and grading wheel so that classification The quantity of wheel can be arranged according to the actual requirements so that whole grader can carry out extensive material treatment.
Brief description of the drawings
Fig. 1 is structural representation of the invention;
Fig. 2 is partial enlargement structural representation at the A of Fig. 1;
Reference name in figure corresponding to each sequence number is as follows:
Free vortex flow area 1, forced vortex area 2, middle part transition region 3, top graded region 4, meal feed opening 5, first feed Mouthfuls 6, natural air inlet mouth 7, discharging housing 8, top board 9, fine powder discharge nozzle 10, pan feeding passage 11, outer shroud installing plate 12, motor 13, Belt 14, bearing block 15, grading wheel 16, circular air inlet pipe 17, oblique blade 18, second charging aperture 19, charging transition conduit 20, first Air inlet 21, transitional cavity 22, mounting flange 24, observation window construction 25.
Specific embodiment
A kind of large-scale micrometer grader, is shown in Fig. 1:Housing includes the free vortex flow area 1, forced vortex for sequentially arranging from bottom to top Stream area 2, middle part transition region 3, top graded region 4, the bottom in free vortex flow area 1 is the meal feed opening 5 for from up to down closing up, from First charging aperture 6, natural air inlet mouth 7 are respectively arranged with the conical surface by vortex 1, the center of top graded region 4 is set There is discharging housing 8, discharging housing 8 is installed in the center of the lower surface of the top board 9 of housing, the center of the housing 8 that discharges The fine powder discharge nozzle 10 arranged from bottom to top is provided with, the bottom outer ring surface of fine powder discharge nozzle 10 is evenly equipped with many and radially outward prolongs The pan feeding passage 11 stretched, the radial outer end of pan feeding passage 11 is provided with outer shroud installing plate 12, and fine powder discharge nozzle 10 is convex in housing Top board 9, fine powder discharge nozzle 10 is located at the center of the top board 9 of housing, and the upper end face ring of top board 9 is furnished with several motors 13, the output end of each motor 13 is connected to the input of the bearing block 15 positioned at housing sidewall position by belt 14 respectively, The output end of bearing block 15 is located at the inside of the top graded region 4 of housing, and the output end of each bearing block 15 is respectively installed with point Step cone 16, the inner end plate of grading wheel 16 is installed in the outer shroud installing plate 12 of correspondence position, motor 13, pan feeding passage 11, axle respectively Bearing 15, the quantity of grading wheel 16 are corresponded and each correspondence arrangement is installed.
Forced vortex area 2 is the circular cone structure for closing up from bottom to top, and the outer ring surface in forced vortex area 2 is provided with annular and enters Airduct 17, the exit of circular air inlet pipe 17 is connected to the outer shroud air inlet in forced vortex area 2 by oblique blade 18, and the air intake sets Put and cause that the wind speed for entering forced vortex area 2 becomes big, and because the pipeline of the circular cone structure for closing up from bottom to top is set so that Material forced vortex area 2 by fully diffusion, then diffuse up;
Transition region 3 is the rounding frustum structure of enlarging from bottom to top, and it is easy to material uniformly to spread upwards;
Top graded region 4 is cylindrical structural, and the lower section of top graded region 4 is provided with difference near the position of transition region 3 Observation window construction 25, second charging aperture 19 are set, and observation window construction 25 is used to observe material mixing situation, enters to adjust annular The blast and first charging aperture 6 of airduct 17, the charging situation of second charging aperture 19;
Second charging aperture 19 is circumscribed with charging transition conduit 20 obliquely, and it is vertical to feed the upper part of transition conduit 20 End, it ensures that material can be then equal in the presence of the air-flow of lower end by the smooth cavity for entering into top graded region 4 of gravity Even diffusion;
Top board 9 is provided with the first air inlet 21, the first air inlet 21 be communicated to discharging housing 8, fine powder discharge nozzle 10 it is outer In the transitional cavity 22 that wall is constituted;
Mounting flange 24 on the shell of each bearing block 15, mounting flange 24 is fastenedly connected the correspondence position of housing sidewall, The inner chamber of bearing block 15 is provided with air-tight structure, prevents from being mixed into particle or oily pollution material in bearing, it is ensured that bearing life and Safe handling;
In specific embodiment, motor 13, pan feeding passage 11, bearing block 15, the quantity of grading wheel 16 are six.
Its operation principle is as follows:First in forced vortex area 2, external wind is acted on material pneumatic jig, particle is fully dissipated, And graded region 4 is risen to, material is classified in graded region, and the coarse grain for not reaching requirement is screwed off to free turbine area 1 along container wall, Extraneous natural wind is rectified into homogeneous eddy flow, will mix or stick to the fines segregation in meal, and the coarse grain after separation is from bottom Coarse grain mouthful 5 is discharged, and the particulate for reaching requirement enters in grading wheel 16 with air-flow, and final grain of inhaling is discharged from fine powder discharge nozzle 10, is entered Enter trap to collect, pack, gas is discharged from air-introduced machine after purification;It uses gravity, free vortex flow and forced vortex classification phase Combination, the particle before classification can be completely dispersed in the gas flow, and it causes that airflow field stabilization, and whole classification function are largely divided Level material so that the efficiency of separation is high, low production cost.
Wherein the first charging aperture 6 of grader, second charging aperture 19 can respectively with the powder such as various large-size ball mills, roller mill Mill equipment is used in series, and composition loop circuit is crushed, wherein can select to access connection second from the meal of the outflow of meal feed opening 5 The entrance of the milling equipment of charging aperture 19, such coarse fodder improves material by flowing into second charging aperture 19 after grinding again Utilization rate;The specific material for how arranging first charging aperture 6, second charging aperture 19 is according to actual conditions setting.When classification is worn and torn Property strong material when, housing can add the wear-resistant liner, grading wheel 16 can to use high-abrasive material, prevent abrasion.
Specific embodiment of the invention has been described in detail above, but content is only the preferable implementation of the invention Example, it is impossible to be considered as the practical range for limiting the invention.All impartial changes made according to the invention application range Change and improve etc., all should still belong within this patent covering scope.

Claims (7)

1. a kind of large-scale micrometer grader, it is characterised in that:Housing includes the free vortex flow area for sequentially arranging from bottom to top, forces Vortex, middle part transition region, top graded region, the bottom in the free vortex flow area are the meal feed opening for from up to down closing up, First charging aperture, natural air inlet mouth, the centre bit of the top graded region are respectively arranged with the conical surface in the free vortex flow area Install and be equipped with discharging housing, the discharging housing is installed in the center of the lower surface of the top board of the housing, the discharging The center of housing is provided with the fine powder discharge nozzle arranged from bottom to top, and the bottom outer ring surface of the fine powder discharge nozzle is evenly equipped with The pan feeding passage that the six roots of sensation extends radially outwardly, the radial outer end of the pan feeding passage is provided with outer shroud installing plate, and the fine powder goes out The convex top board in housing of expects pipe, the fine powder discharge nozzle be located at the housing top board center, the top board it is upper End face ring is furnished with six motors, and the output end of each motor is connected to the axle positioned at the housing sidewall position by belt respectively The input of bearing, the output end of the bearing block is located at the inside of the top graded region of the housing, each described bearing block Output end be respectively installed with grading wheel, the inner end plate of the grading wheel is installed in the outer shroud installing plate of correspondence position, institute respectively Each six of the quantity of motor, pan feeding passage, bearing block, grading wheel is stated, is corresponded respectively and each correspondence arrangement is installed.
2. a kind of large-scale micrometer grader as claimed in claim 1, it is characterised in that:The forced vortex area is for from bottom to top The circular cone structure of closing in, the outer ring surface in the forced vortex area is provided with circular air inlet pipe, the outlet of the circular air inlet pipe Place is connected to the outer shroud air inlet in the forced vortex area by oblique blade.
3. a kind of large-scale micrometer grader as claimed in claim 1, it is characterised in that:The transition region is enlarging from bottom to top Rounding frustum structure.
4. a kind of large-scale micrometer grader as claimed in claim 1, it is characterised in that:The top graded region is tied for cylinder Structure, the lower section of the top graded region is provided near the position of the transition region and is respectively provided with observation window construction, the second charging Mouthful.
5. a kind of large-scale micrometer grader as claimed in claim 1, it is characterised in that:The second charging aperture is circumscribed with oblique On charging transition conduit, the upper part of the charging transition conduit is vertical end.
6. a kind of large-scale micrometer grader as claimed in claim 3, it is characterised in that:The top board is provided with the first air inlet Mouthful, first air inlet is communicated in the discharging housing, the transitional cavity that the outer wall of fine powder discharge nozzle is constituted.
7. a kind of large-scale micrometer grader as claimed in claim 1, it is characterised in that:Pacify on the shell of each bearing block Dress flange, the mounting flange is fastenedly connected the correspondence position of housing sidewall, and the inner chamber of the bearing block is provided with airtight sealed knot Structure.
CN201710018742.0A 2017-01-11 2017-01-11 Large micron classifier Pending CN106694366A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710018742.0A CN106694366A (en) 2017-01-11 2017-01-11 Large micron classifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710018742.0A CN106694366A (en) 2017-01-11 2017-01-11 Large micron classifier

Publications (1)

Publication Number Publication Date
CN106694366A true CN106694366A (en) 2017-05-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710018742.0A Pending CN106694366A (en) 2017-01-11 2017-01-11 Large micron classifier

Country Status (1)

Country Link
CN (1) CN106694366A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112108365A (en) * 2020-08-07 2020-12-22 中北大学 Environment-friendly bauxite desilication device and use method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112108365A (en) * 2020-08-07 2020-12-22 中北大学 Environment-friendly bauxite desilication device and use method thereof

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