CN103639119A - Micron-grade energy-saving type double-impeller superfine classifier - Google Patents
Micron-grade energy-saving type double-impeller superfine classifier Download PDFInfo
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- CN103639119A CN103639119A CN201310675672.8A CN201310675672A CN103639119A CN 103639119 A CN103639119 A CN 103639119A CN 201310675672 A CN201310675672 A CN 201310675672A CN 103639119 A CN103639119 A CN 103639119A
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Abstract
The invention discloses a micron-grade energy-saving type double-impeller superfine classifier. The micron-grade energy-saving type double-impeller superfine classifier comprises a lower cavity, a middle cavity and an upper cavity. A material distribution cone is arranged in the middle cavity. A passage which allows materials to continue rising is formed between the outer sidewall of the material distribution cone and the middle cavity. Two grading devices and corresponding air sealing devices are arranged on the two side faces of the upper cavity respectively. Each grading device comprises a support, a grading impeller and a variable frequency motor for driving the grading impeller to rotate at a high speed. Each air sealing device comprises air pipes, a plurality of mounting bases and a sealing base, wherein the mounting bases are evenly fixed to the outer side face of the corresponding support in the circumferential direction of the air pipes, the sealing base is fixed to the inner side face of the corresponding support, and the two ends of each air pipe are connected with the corresponding mounting base and the sealing base respectively. Through the structural improvement, grading accuracy is greatly improved, and the micron-grade energy-saving type double-impeller superfine classifier can be widely applied to deep processing of minerals, superfine processing of new materials, and superfine deep processing of raw materials in food industry, medical industry, chemical industry and the like.
Description
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 industries 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 producing at the sorting unit of High Rotation Speed, make thickness feed separation, the fine grained that meets particle diameter requirement 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 social development, 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.Yet the distinct issues such as existing gas flow sizing machine airflow field is chaotic, distribution of air flow is unreasonable, thereby causes effectiveness of classification not high, and fineness is inadequate, and the hermetically-sealed construction of equipment is unreasonable simultaneously, and the efficiency of separation is low, energy consumption height, 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,
In described middle chamber, be provided with material distributing cone, described material distributing cone is the taper shape of pointed end, forms material and continue the passage rising between the lateral wall of described material distributing cone and described middle chamber inwall;
On the two sides of described upper cavity, be provided with to horizontal symmetrical respectively 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, and described classifying turbine is arranged in described support; Described air seal set comprises many tracheaes, a plurality of mount pad and a seal receptacle, described a plurality of mount pad is fixed on along described classifying turbine circumferential uniform on the lateral surface in outside of described support, described seal receptacle is fixed on the medial surface of inner side of described support, the two ends of described tracheae are connected with described seal receptacle with described mount pad respectively, described seal receptacle has an annular seal space being communicated with described tracheae, the lateral surface of described seal receptacle is provided with the annular groove being communicated with described annular seal space, and the inner of described classifying turbine is rotated and is arranged in described annular groove.：
In such scheme, between described middle chamber and described lower chamber, be provided with Secondary Air dispersal device, described Secondary Air dispersal device comprises shell and the secondary air intake pipe communicating 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, in described shell, be provided with a plurality of wind deflectors, a plurality of wind deflectors are circumferentially uniform in the shape of a spiral along described shell, between adjacent wind deflector, form air channel, a plurality of wind deflectors surround 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 a plurality of described wind deflectors, and described feed pipe penetrates after 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 the 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 comprised 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 comprised of outer wheel disc, interior wheel disc and multi-disc blade, described outer wheel disc and described interior wheel disc are oppositely arranged, the two ends of described multi-disc blade are connected and fixed with the outer rim of outer wheel disc and interior wheel disc respectively, multi-disc spacing with blades arranges, gap between adjacent blades allows satisfactory material to enter the inner chamber of classifying turbine, and the medial surface middle part of described outer wheel disc is provided with boss, and the center of boss is provided with for the axis hole of the motor shaft of described variable-frequency motor is installed.
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, has improved efficiency greatly; In addition, by air seal set, avoid undesirable material to sneak into in mouth, greatly improved the precision of classification, can be widely used in the ultra-fine deep processing of the ultra-fine requirement of Deep processing of minerals, new material and food pharmaceuticals industry, chemical raw material etc.
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.
The specific embodiment
The energy-saving bilobed wheel superfine classifier of micron order provided by the invention, by architecture advances, has improved effectiveness of classification greatly, can be widely used in the ultra-fine deep processing of the ultra-fine requirement of Deep processing of minerals, new material and 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 that material is with the direction of motion of 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 12, and under the effect of negative pressure, material is entered by charging aperture 11 and rises and enters middle chamber 20.Scum pipe 40 is not discharged for meeting the larger material of granularity of classification requirement after classification is processed.
As shown in Figure 2, middle chamber 20 comprises top board 21 and is fixed on the side plate 22 on top board 21 lower surfaces, and the upper end lateral surface of side plate 22 is provided with bearing 24, by bearing 24, the energy-saving bilobed wheel superfine classifier of micron order is whole fixing.The lower end of side plate 22 tilts to the central axis of middle chamber 20, thereby forms up big and down small taper type.In middle chamber 20, be provided with material distributing cone 23, material distributing cone 23 is the taper shape of 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, between the inwall of the lateral wall of material distributing cone 23 and middle chamber 20, form material and continue the passage rising, material enters grading plant through this.
Between middle chamber 20 and lower chamber 10, be provided with Secondary Air dispersal device 70, as shown in Figure 3, Secondary Air dispersal device 70 comprises shell 71 and the secondary air intake pipe 72 communicating with shell 71 inner chambers, and shell 71 is cylindrical, and end face and bottom surface are communicated with middle chamber 20 and lower chamber 10 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.
In shell 71, be fixed with a plurality of wind deflectors 74, a plurality of wind deflectors 74 along the circumferentially uniform in the shape of a spiral setting of shell 71, form air channel between adjacent wind deflector centered by the central axis of shell 71, and a plurality of wind deflectors 74 surround formation central passage.The top ring of scum pipe 40 is fixed on the bottom surface of shell 71 around the outer rim of a plurality of wind deflectors 74, and feed pipe 10 penetrates after the tube wall of scum pipe 40 from bottom to top, be inserted in central passage, and the top of feed pipe 10 flushes with the bottom surface of shell 71.
As shown by arrows in FIG., secondary air is entered in shell 71 by secondary air intake pipe 72, the air channel forming between wind deflector blows to central passage, thereby the less material of granularity is blown into central passage in the material falling after classification is processed, and with ascending air, rises again to enter into middle chamber 20 and then enter grading plant and carry out classification processing; And the larger material of granularity is owing to having larger gravity, can not be blown into central passage, and continue to fall along the gap between wind deflector, finally by scum pipe 40, discharged.
As Figure 1 and Figure 4, on the two sides of upper cavity 30, be provided with to horizontal symmetrical respectively two cover grading plants 50 and corresponding air seal set 60.
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.Take left side as example, concrete structure is: interior plate 52 sealings are 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 that is communicated with classifying turbine 56 inner chambers and upper cavity 30, classifying turbine 56 is arranged in the cavity between the outer panel 53 of 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, thereby drive classifying turbine 56 High Rotation Speeds by variable-frequency motor 57.
The outer circumference surface of classifying turbine 56 forms narrow slit by polylith stripe board, and the material that meets granularity requirements enters in the inner chamber of classifying turbine 56 through narrow slit, and through runner 58, enters in upper cavity under negative pressure.
The gas that sealing source of the gas is supplied with enters annular seal space 64 through tracheae 61, and export from annular groove, thereby (rotational engagement place) forms gas wall on the inner side end of classifying turbine 56, prevent that material from entering runner 58 by the inner side end of classifying turbine 56 and the gap between interior plate 52, and then sneak in finished product.
As shown in Figure 5, classifying turbine 56 is comprised of outer wheel disc 561, interior wheel disc 562 and multi-disc blade 563, outer wheel disc 561 and interior wheel disc 562 are oppositely arranged, the two ends of multi-disc blade 563 are connected and fixed with the outer rim of outer wheel disc 561 and interior wheel disc 562 respectively, multi-disc blade 563 intervals arrange, and the gap between adjacent blades allows satisfactory material to enter the inner chamber of classifying turbine 56.The medial surface middle part of outer wheel disc 561 is provided with boss, and the center of boss is provided with axis hole 564, this design, because axis hole lengthens, make motor operation more stable, simultaneously, by lengthened blades 563, can increase circulation area, improve output, blade is widened encryption can improve the grade of classification.
The lateral surface of boss is round table-like, with the resistance after reducing material and entering.
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 is sneaked into material is more complicated, and can make full use of sealing wind action, at the bottom of further anti-tablet, larger material enters runner 58.The port of the second annular groove 566 is horn-like, it is poroid that the cross section of annular groove 567 is inner small and outside big step, and minor diameter is less than the size at horn mouth place, the arrival end size of the second annular groove 566 is greater than the size of annular groove 567 smaller portions stepped holes (groove), like this, can produce air-flow recoil, better seal the gap between classifying turbine and seal receptacle lateral surface.
Use procedure of the present invention is as follows:
After discharging opening 31 connecting fans, in the interior generation negative pressure of upper cavity 30, middle chamber 20 and feed pipe 10, under the effect of negative pressure, material is entered by charging aperture 11, and rises and enter middle chamber 20 through Secondary Air dispersal device 70 with air-flow.
In middle chamber 20, material enters two grading plants 50 along the passage forming between material distributing cone 23 and middle chamber 20 inwalls, in the high speed rotating 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 through runner 58, enter upper cavity 30 under negative pressure, finally by discharging opening 31, exported.In the process of processing in classification, sealing source of the gas enters annular seal space 64 through tracheae 61, thereby between the inner side end of classifying turbine 56 and support, form gas wall, prevent that material from being entered runner 58 and being sneaked in finished product by inner side end and the gap between interior plate 52 of classifying turbine 56.
Material is after grading plant is processed, secondary air separating is in bulk puts 70 along sliding under the inwall of middle chamber 20 not enter the larger material of granularity of split pole device, after Secondary Air dispersal device 70 is processed, the material that wherein granularity is less rises up into middle chamber 20 with ascending air again, and then again by grading plant, processed, improved the utilization rate of material, the material that granularity is larger continues to fall, and finally by scum pipe 40, discharges.
Through above-mentioned, introduce knownly, the present invention has following significant advantage:
(1) structure of classifying turbine is improved, particularly by lengthening the mode of axis hole, improved the stability of motor operation;
(2) grading plant is symmetrically arranged in horizontal plane, has improved on the one hand the efficiency of processing, and has also strengthened equipment traveling comfort simultaneously, has reduced noise;
(3) owing to being provided with air seal set, greatly reducing compared with coarsegrain material and sneak into the probability in finished product, improved the precision of classification;
(4) in middle chamber, be provided with material distributing cone, be conducive to rising and the whereabouts of material;
(5) Secondary Air dispersal device is improved, optimized the angle of inclination of blade, increased the quantity of blade, thereby make secondary air more reasonable;
(6) scum pipe tilts and puts, so that defective material can be discharged along sliding to discharge gate under its inwall under the effect of gravity.
The present invention is not limited to above-mentioned preferred forms, and anyone should learn the structural change of making under enlightenment of the present invention, and every have identical or close technical scheme with the present invention, within all falling into protection scope of the present invention.
Claims (8)
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,
In described middle chamber, be provided with material distributing cone, described material distributing cone is the taper shape of pointed end, forms material and continue the passage rising between the lateral wall of described material distributing cone and described middle chamber inwall;
On the two sides of described upper cavity, be provided with to horizontal symmetrical respectively 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, and described classifying turbine is arranged in described support; Described air seal set comprises many tracheaes, a plurality of mount pad and a seal receptacle, described a plurality of mount pad is fixed on along described classifying turbine circumferential uniform on the lateral surface in outside of described support, described seal receptacle is fixed on the medial surface of inner side of described support, the two ends of described tracheae are connected with described seal receptacle with described mount pad respectively, described seal receptacle has an annular seal space being communicated with described tracheae, the lateral surface of described seal receptacle is provided with the annular groove being communicated with described annular seal space, and the inner of described classifying turbine is rotated and is arranged in described annular groove.
2. the energy-saving bilobed wheel superfine classifier of micron order as claimed in claim 1, is characterized in that,
Between described middle chamber and described lower chamber, be provided with Secondary Air dispersal device, described Secondary Air dispersal device comprises shell and the secondary air intake pipe communicating 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, in described shell, be provided with a plurality of wind deflectors, a plurality of wind deflectors are circumferentially uniform in the shape of a spiral along described shell, between adjacent wind deflector, form air channel, and a plurality of wind deflectors surround 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 a plurality of described wind deflectors, and described feed pipe penetrates after 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, 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 the 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, 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, is characterized in that, described support is comprised of cover plate, interior plate, outer panel and base plate, and the end face of described cover plate is provided with handle.
7. the energy-saving bilobed wheel superfine classifier of micron order as claimed in claim 1, it is characterized in that, described classifying turbine is comprised of outer wheel disc, interior wheel disc and multi-disc blade, described outer wheel disc and described interior wheel disc are oppositely arranged, the two ends of described multi-disc blade are connected and fixed with the outer rim of outer wheel disc and interior wheel disc respectively, multi-disc spacing with blades arranges, gap between adjacent blades allows satisfactory material to enter the inner chamber of classifying turbine, the medial surface middle part of described outer wheel disc is provided with boss, and the center of boss is provided with for the axis hole of the motor shaft of described variable-frequency motor is installed.
8. the energy-saving bilobed wheel superfine classifier of micron order as claimed in claim 1, is characterized in that, 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.
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Cited By (5)
| 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 |
| CN106391219A (en) * | 2016-09-20 | 2017-02-15 | 派勒（天津）纳米技术有限公司 | Dry type ball-grinding classification device |
| CN106694366A (en) * | 2017-01-11 | 2017-05-24 | 江苏密友粉体新装备制造有限公司 | Large micron classifier |
| CN108105988A (en) * | 2018-02-23 | 2018-06-01 | 郭绍华 | Silencer of bundling pipe |
| CN114534884A (en) * | 2022-01-07 | 2022-05-27 | 江苏晋瑄陶瓷设备有限公司 | Powder melting and crushing machine |
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| CN114534884A (en) * | 2022-01-07 | 2022-05-27 | 江苏晋瑄陶瓷设备有限公司 | Powder melting and crushing machine |
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| CN103639119B (en) | 2016-02-24 |
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