CN103639119B - The energy-saving bilobed wheel superfine classifier of micron order - Google Patents

The energy-saving bilobed wheel superfine classifier of micron order Download PDF

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CN103639119B
CN103639119B CN201310675672.8A CN201310675672A CN103639119B CN 103639119 B CN103639119 B CN 103639119B CN 201310675672 A CN201310675672 A CN 201310675672A CN 103639119 B CN103639119 B CN 103639119B
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classifying turbine
saving
middle chamber
chamber
energy
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CN103639119A (en
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范世化
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QINGDAO SHI NA MACHINERY EQUIPMENT Co Ltd
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QINGDAO SHI NA MACHINERY EQUIPMENT Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10Process efficiency

Abstract

The invention discloses the energy-saving bilobed wheel superfine classifier of a kind of micron order, comprise lower chamber, middle chamber and upper cavity, in described middle chamber, be provided with material distributing cone, between the lateral wall of described material distributing cone and described middle chamber, form the passage that material continues to rise; The two sides of described upper cavity are respectively equipped with two cover grading plants and corresponding air seal set, described grading plant comprises the variable-frequency motor of support, classifying turbine and driving classifying turbine High Rotation Speed; Described air seal set comprises tracheae, multiple mount pad and seal receptacle, described multiple mount pad is along on the uniform lateral surface being fixed on described support of circumference of described tracheae, described seal receptacle is fixed on the medial surface of described support, and the two ends of described tracheae are connected with described mount pad and described seal receptacle respectively.The present invention, is improved by structure, substantially increases effectiveness of classification, can be widely used in Deep processing of minerals, the ultra-fine requirement of new material and the ultra-fine deep processing of food pharmaceuticals industry, chemical raw material etc.

Description

The energy-saving bilobed wheel superfine classifier of micron order
Technical field
The present invention relates to grader, be specifically related to the energy-saving bilobed wheel superfine classifier of micron order.
Background technology
Gas flow sizing machine is widely used in the industry such as chemical industry, mineral (being especially applicable to the non-mineral products classifications such as calcium carbonate, kaolin, quartz, talcum, mica), metallurgy, abrasive material, pottery, refractory material, medicine, agricultural chemicals, food, health products, new material.
Material enters its inner chamber by the charging aperture of gas flow sizing machine lower end under the draft effect of air inducing unit, and along with ascending air high-speed motion is to graded region, under the powerful centrifugal action that the sorting unit of High Rotation Speed produces, make thickness feed separation, the fine grained meeting Particle size requirements enters discharge chamber by sorting unit impeller clearance, and exported by discharging opening, after coarse granule hits wall, speed disappears, and drops to discharge port place discharge along barrel.
Along with the development of society, the granularity requirements of product is more and more higher, and energy-conserving and environment-protective also become the primary requirement of industry-by-industry to equipment.But existing gas flow sizing machine airflow field is chaotic, distribution of air flow is unreasonable, thus cause effectiveness of classification not high, the distinct issues such as fineness is inadequate, and the hermetically-sealed construction of equipment is unreasonable simultaneously, and the efficiency of separation is low, and energy consumption is high, production cost is corresponding increase also.
Summary of the invention
Technical problem to be solved by this invention is the problem that gas flow sizing machine effectiveness of classification is not high, energy consumption is large.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is to provide the energy-saving bilobed wheel superfine classifier of a kind of micron order, comprises lower chamber, middle chamber and the upper cavity combined successively from bottom to top,
Be provided with material distributing cone in described middle chamber, described material distributing cone is the taper shape of pointed end, forms the passage that material continues to rise between the lateral wall of described material distributing cone and described middle chamber inwall;
The two sides of described upper cavity are provided with to horizontal symmetrical two cover grading plants and corresponding air seal set respectively, described grading plant comprises the variable-frequency motor of support, classifying turbine and driving classifying turbine High Rotation Speed, and described classifying turbine is arranged in described support; Described air seal set comprises many tracheaes, multiple mount pad and a seal receptacle, described multiple mount pad is along on the uniform lateral surface being fixed on the outside of described support of circumference of described classifying turbine, described seal receptacle is fixed on the medial surface of the inner side of described support, the two ends of described tracheae are connected with described mount pad and described seal receptacle respectively, described seal receptacle has an annular seal space be communicated with described tracheae, the lateral surface of described seal receptacle is provided with the annular groove be communicated with described annular seal space, and the inner ends thereof of described classifying turbine is arranged in described annular groove.:
In such scheme, Secondary Air dispersal device is provided with between described middle chamber and described lower chamber, the secondary air intake pipe that described Secondary Air dispersal device comprises shell and communicates with the inner chamber of described shell, described shell is cylindrical, the tangent setting of outer circumference surface of described secondary air intake pipe and described shell, multiple wind deflector is provided with in described shell, multiple wind deflector is uniform in the shape of a spiral along the circumference of described shell, form air channel between adjacent wind deflector, multiple wind deflector surrounds formation central passage;
Described lower chamber has feed pipe and scum pipe, and the top ring of described scum pipe is fixed on the bottom surface of described shell around the outer rim of multiple described wind deflector, after described feed pipe penetrates the tube wall of described scum pipe from bottom to top, is inserted in described central passage.
In such scheme, the angle between two adjacent described wind deflectors is 20-25 degree.
In such scheme, described middle chamber comprises top board and is fixed on side plate on top board lower surface, and the lower end of described side plate tilts to the central axis of described middle chamber, forms up big and down small taper type.
In such scheme, described scum pipe is obliquely installed.
In such scheme, described support is made up of cover plate, interior plate, outer panel and base plate, and the end face of described cover plate is provided with handle.
In such scheme, described classifying turbine is made up of outer wheel disc, interior wheel disc and more blades, described outer wheel disc and described interior wheel disc are oppositely arranged, the two ends of described more blades are connected and fixed with the outer rim of outer wheel disc and interior wheel disc respectively, more blades interval is arranged, gap between adjacent blades allows satisfactory material to enter the inner chamber of classifying turbine, is provided with boss in the middle part of the medial surface of described outer wheel disc, and the center of boss is provided with the axis hole of the motor shaft for installing described variable-frequency motor.
In such scheme, the inner side end of described classifying turbine is provided with the annular ridge suitable with described annular groove, and the end face of described annular ridge is provided with the second annular groove.
The present invention, by symmetrically arranged two cover grading plants, substantially increases efficiency; In addition, by air seal set, avoid undesirable material and be mixed into in mouth, substantially increase the precision of classification, Deep processing of minerals, the ultra-fine requirement of new material and the ultra-fine deep processing of food pharmaceuticals industry, chemical raw material etc. can be widely used in.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of middle chamber in the present invention;
Fig. 3 is the structural representation of Secondary Air dispersal device in the present invention;
Fig. 4 is the structural representation of grading plant and air seal set in the present invention;
Fig. 5 is the structural representation of impeller in the present invention;
Fig. 6 is the A portion enlarged drawing in Fig. 3.
Detailed description of the invention
The energy-saving bilobed wheel superfine classifier of micron order provided by the invention, is improved by structure, substantially increases effectiveness of classification, can be widely used in Deep processing of minerals, the ultra-fine requirement of new material and the ultra-fine deep processing of food pharmaceuticals industry, chemical raw material etc.Below in conjunction with specification drawings and specific embodiments, the present invention is described in detail.
As shown in Figure 1, the energy-saving bilobed wheel superfine classifier of micron order provided by the invention, comprises lower chamber, middle chamber 20 and the upper cavity 30 combined successively from bottom to top.The direction of arrow is the direction of motion of material with air-flow.
Lower chamber is by feed pipe 10 and scum pipe 40, and feed pipe 10 is as the input channel of material, and its lower end is provided with charging aperture 11, and under the effect of negative pressure, material is entered by charging aperture 11 and risen and enters middle chamber 20.Scum pipe 40 is discharged for the material that the granularity that will not meet classification requirement after classification process is larger.
As shown in Figure 2, the side plate 22 that middle chamber 20 comprises top board 21 and is fixed on top board 21 lower surface, the upper end lateral surface of side plate 22 is provided with bearing 24, by bearing 24 by fixing for energy-saving for micron order bilobed wheel superfine classifier entirety.The lower end of side plate 22 tilts to the central axis of middle chamber 20, thus forms up big and down small taper type.Material distributing cone 23 is provided with in middle chamber 20, the taper shape of material distributing cone 23 in pointed end, and upper end is fixed on the lower surface of top board 21, the tip of material distributing cone 23 is positioned on the central axis of middle chamber 20, form the passage that material continues to rise between the lateral wall of material distributing cone 23 and the inwall of middle chamber 20, material enters grading plant through this.
Secondary Air dispersal device 70 is provided with between middle chamber 20 and lower chamber 10, as shown in Figure 3, the secondary air intake pipe 72 that Secondary Air dispersal device 70 comprises shell 71 and communicates with shell 71 inner chamber, shell 71 is cylindrical, and end face and bottom surface are communicated with lower chamber 10 with middle chamber 20 respectively.Secondary air intake pipe 72 is tangent with the outer circumference surface of shell 71, and secondary air intake pipe 72 is provided with switch valve 73, for switching on or off secondary air.
Shell 71 internal fixtion is provided with multiple wind deflector 74, and multiple wind deflector 74 along the uniform in the shape of a spiral setting of the circumference of shell 71, forms air channel between adjacent wind deflector centered by the central axis of shell 71, and multiple wind deflector 74 surrounds formation central passage.The top ring of scum pipe 40 is fixed on the bottom surface of shell 71 around the outer rim of multiple wind deflector 74, and feed pipe 10 is inserted in central passage after penetrating the tube wall of scum pipe 40 from bottom to top, and the top of feed pipe 10 flushes with the bottom surface of shell 71.
As shown by arrows in FIG., secondary air enters in shell 71 by secondary air intake pipe 72, the air channel formed between wind deflector blows to central passage, thus material less for granularity in the material fallen after classification process is blown into central passage, and rises with ascending air and again enter into middle chamber 20 and then enter grading plant and carry out classification process; And the larger material of granularity is owing to having larger gravity, central passage can not be blown into, and continue to fall along the gap between wind deflector, finally be discharged by scum pipe 40.
Scum pipe 40 is obliquely installed, and can slide to discharge gate 41 under gravity discharge to make defective material under its inwall.
As Figure 1 and Figure 4, the two sides of upper cavity 30 are provided with to horizontal symmetrical two cover grading plants 50 and corresponding air seal set 60 respectively.
Grading plant 50 comprises support, classifying turbine 56 and drives the variable-frequency motor 57 of classifying turbine High Rotation Speed, and support is made up of cover plate 51, interior plate 52, outer panel 53 and base plate 54, and the end face of cover plate 51 is provided with handle 55.
The left and right open at both ends of upper cavity 30, grading plant 50 and air seal set 60 are separately positioned on the left and right open at both ends place of upper cavity 30.For left side, concrete structure is: interior plate 52 sealing is fixed on the right-hand member open-mouth of upper cavity 30, interior plate 52 is provided with the runner 58 of the inner chamber being communicated with classifying turbine 56 inner chamber and upper cavity 30, in cavity between the outer panel 53 that classifying turbine 56 is arranged on interior plate 52, variable-frequency motor 57 is fixed on the outside of outer panel 53, and the output shaft of variable-frequency motor 57 is fixedly connected with classifying turbine 56, thus drive classifying turbine 56 High Rotation Speed by variable-frequency motor 57.
The outer circumference surface of classifying turbine 56 forms narrow slit by polylith stripe board, and the material meeting granularity requirements enters in the inner chamber of classifying turbine 56 through narrow slit, and enters in upper cavity through runner 58 under negative pressure.
Air seal set 60 comprises many tracheaes 61, multiple mount pad 62 and a seal receptacle 63.Multiple mount pad 62 is along the uniform outside being fixed on outer panel 53 of circumference of classifying turbine 56, seal receptacle 63 is fixed on the lateral surface of interior plate 52, the two ends of tracheae 61 are tightly connected with mount pad 62 and seal receptacle 63 respectively, and the one end be connected with mount pad 62 is stretched out mount pad 62 and is provided with for connecting the interface sealing source of the gas.
Seal receptacle 63 has an annular seal space 64 communicated with tracheae 61, the medial surface of seal receptacle 63 is provided with an annular groove communicated with annular seal space 64, the medial surface of classifying turbine 56 is provided with the annular ridge suitable with annular groove, is arranged realize classifying turbine 56 and rotate by the rotation of annular ridge in annular groove.
The gas of sealing source of the gas supply enters annular seal space 64 through tracheae 61, and export from annular groove, thus (rotational engagement place) forms gas wall on the inner side end of classifying turbine 56, prevent material from entering runner 58 by the gap between the inner side end of classifying turbine 56 and interior plate 52, and then be mixed in finished product.
As shown in Figure 5, classifying turbine 56 is made up of outer wheel disc 561, interior wheel disc 562 and more blades 563, outer wheel disc 561 and interior wheel disc 562 are oppositely arranged, the two ends of more blades 563 are connected and fixed with the outer rim of outer wheel disc 561 and interior wheel disc 562 respectively, more blades 563 interval is arranged, and the gap between adjacent blades allows satisfactory material to enter the inner chamber of classifying turbine 56.Be provided with boss in the middle part of the medial surface of outer wheel disc 561, the center of boss is provided with axis hole 564, this design, because axis hole lengthens, motor is run more stable, simultaneously, can increase circulation area by lengthened blades 563, improve output, blade widens the grade that encryption then can improve classification.
The lateral surface of boss is round table-like, with reduce material enter after resistance.
In addition, as shown in Figure 6, annular ridge 565 is arranged on the inner side end of interior wheel disc 562, the end face of annular ridge 565 is provided with the second annular groove 566, the path that this structure makes material be mixed into is more complicated, and sealing wind action can be made full use of, at the bottom of further anti-tablet, larger material enters runner 58.The port of the second annular groove 566 is horn-like, the cross section of annular groove 567 is that inner small and outside big step is poroid, and minor diameter is less than the size at horn mouth place, namely the arrival end size of the second annular groove 566 is greater than the size of annular groove 567 smaller portions stepped hole (groove), like this, air-flow recoil can be produced, the gap better between sealing classifying turbine and seal receptacle lateral surface.
Use procedure of the present invention is as follows:
After discharging opening 31 connecting fan, in upper cavity 30, middle chamber 20 and feed pipe 10, produce negative pressure, under the effect of negative pressure, material is entered by charging aperture 11, and enters middle chamber 20 with air-flow rising through Secondary Air dispersal device 70.
In middle chamber 20, material enters two grading plants 50 along the passage formed between material distributing cone 23 and middle chamber 20 inwall, in the high-speed rotation process of classifying turbine 56, the material that granularity is less is entered the inside of classifying turbine 56 by the gap between blade, and enter upper cavity 30 through runner 58 under negative pressure, finally exported by discharging opening 31.In the process of classification process, sealing source of the gas enters annular seal space 64 through tracheae 61, thus gas wall is formed between the inner side end and support of classifying turbine 56, prevent material from being entered runner 58 by the gap between the inner side end of classifying turbine 56 and interior plate 52 and being mixed in finished product.
Material is after grading plant process, do not enter the larger material of the granularity of split pole device under the inwall of middle chamber 20, slide to that secondary air separating is in bulk puts 70, after Secondary Air dispersal device 70 processes, the material that wherein granularity is less rises up into middle chamber 20 with ascending air again, and then again by grading plant process, improve the utilization rate of material, the material that granularity is larger then continues to fall, and discharges finally by scum pipe 40.
Introduce known through above-mentioned, the present invention has following significant advantage:
(1) improve the structure of classifying turbine, the mode particularly by lengthening axis hole improves the stability that motor runs;
(2) grading plant is symmetrically arranged in horizontal plane, improves the efficiency of process on the one hand, also enhances equipment traveling comfort simultaneously, reduce noise;
(3) owing to being provided with air seal set, greatly reduce the probability be mixed into compared with coarsegrain material in finished product, improve the precision of classification;
(4) be provided with material distributing cone in middle chamber, be conducive to rising and the whereabouts of material;
(5) Secondary Air dispersal device is improved, optimize the angle of inclination of blade, add the quantity of blade, thus make secondary air more reasonable;
(6) scum pipe tilts and puts, and can slide to discharge gate under gravity discharge to make defective material under its inwall.
The present invention is not limited to above-mentioned preferred forms, and anyone should learn the structure change made under enlightenment of the present invention, and every have identical or close technical scheme with the present invention, all falls within protection scope of the present invention.

Claims (6)

1. the energy-saving bilobed wheel superfine classifier of micron order, comprises lower chamber, middle chamber and the upper cavity combined successively from bottom to top, it is characterized in that,
Be provided with material distributing cone in described middle chamber, described material distributing cone is the taper shape of pointed end, forms the passage that material continues to rise between the lateral wall of described material distributing cone and described middle chamber inwall;
The two sides of described upper cavity are provided with to horizontal symmetrical two cover grading plants and corresponding air seal set respectively, described grading plant comprises the variable-frequency motor of support, classifying turbine and driving classifying turbine High Rotation Speed, and described classifying turbine is arranged in described support, described air seal set comprises many tracheaes, multiple mount pad and a seal receptacle, described multiple mount pad is along on the uniform lateral surface being fixed on the outside of described support of circumference of described classifying turbine, described seal receptacle is fixed on the medial surface of the inner side of described support, the two ends of described tracheae are connected with described mount pad and described seal receptacle respectively, described seal receptacle has an annular seal space be communicated with described tracheae, the lateral surface of described seal receptacle is provided with the first ring connected in star be communicated with described annular seal space, the inner ends thereof of described classifying turbine is arranged in described first ring connected in star, the inner side end of described classifying turbine is provided with the annular ridge suitable with described first ring connected in star, the end face of described annular ridge is provided with the second annular groove, the port of described second annular groove is horn-like, the cross section of described first ring connected in star is that inner small and outside big step is poroid, the arrival end size of described second annular groove is greater than the size of described first ring connected in star smaller portions stepped hole,
Described classifying turbine is made up of outer wheel disc, interior wheel disc and more blades, described outer wheel disc and described interior wheel disc are oppositely arranged, the two ends of described more blades are connected and fixed with the outer rim of outer wheel disc and interior wheel disc respectively, more blades interval is arranged, gap between adjacent blades allows satisfactory material to enter the inner chamber of classifying turbine, be provided with boss in the middle part of the medial surface of described outer wheel disc, the center of boss is provided with the axis hole of the motor shaft for installing described variable-frequency motor.
2. the energy-saving bilobed wheel superfine classifier of micron order as claimed in claim 1, is characterized in that,
Secondary Air dispersal device is provided with between described middle chamber and described lower chamber, the secondary air intake pipe that described Secondary Air dispersal device comprises shell and communicates with the inner chamber of described shell, described shell is cylindrical, the tangent setting of outer circumference surface of described secondary air intake pipe and described shell, multiple wind deflector is provided with in described shell, multiple wind deflector is uniform in the shape of a spiral along the circumference of described shell, forms air channel between adjacent wind deflector, and multiple wind deflector surrounds formation central passage;
Described lower chamber has feed pipe and scum pipe, and the top ring of described scum pipe is fixed on the bottom surface of described shell around the outer rim of multiple described wind deflector, after described feed pipe penetrates the tube wall of described scum pipe from bottom to top, is inserted in described central passage.
3. the energy-saving bilobed wheel superfine classifier of micron order as claimed in claim 2, it is characterized in that, the angle between two adjacent described wind deflectors is 20-25 degree.
4. the energy-saving bilobed wheel superfine classifier of micron order as claimed in claim 1, it is characterized in that, described middle chamber comprises top board and is fixed on side plate on top board lower surface, and the lower end of described side plate tilts to the central axis of described middle chamber, forms up big and down small taper type.
5. the energy-saving bilobed wheel superfine classifier of micron order as claimed in claim 2, it is characterized in that, described scum pipe is obliquely installed.
6. the energy-saving bilobed wheel superfine classifier of micron order as claimed in claim 1, it is characterized in that, described support is made up of cover plate, interior plate, outer panel and base plate, and the end face of described cover plate is provided with handle.
CN201310675672.8A 2013-12-11 2013-12-11 The energy-saving bilobed wheel superfine classifier of micron order Active CN103639119B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105396785A (en) * 2015-12-07 2016-03-16 宜兴市泰和机械有限公司 Double-impeller air classifier
CN106391219B (en) * 2016-09-20 2019-06-18 派勒(天津)纳米技术有限公司 A kind of dry-type ball mill classification device

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US5301812A (en) * 1993-04-02 1994-04-12 Ecc International Inc. Air classifying apparatus with wear reducing deflector
CN2191715Y (en) * 1994-06-18 1995-03-15 青州水泵厂 Classer for micropowder material
CN2263554Y (en) * 1996-05-21 1997-10-01 中国石油化工总公司 Turbine powdery particle classificator
CN2899949Y (en) * 2006-04-28 2007-05-16 上海化工机械三厂粉碎装备分厂 Novel high efficiency fluidized bed type air flow mill
RU2386489C1 (en) * 2009-02-12 2010-04-20 Открытое Акционерное Общество "Мельинвест" Pneumatic sizing screen
CN202316310U (en) * 2011-11-15 2012-07-11 山东华特磁电科技股份有限公司 Horizontal airflow classifier
CN202410999U (en) * 2011-12-30 2012-09-05 潍坊埃尔派粉体技术设备有限公司 Split horizontal multi-rotor grader
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CN203599074U (en) * 2013-12-11 2014-05-21 青岛世纳机械设备有限公司 Micrometer-scale energy-saving type double-impeller superfine classifier

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