CN204503270U - A kind of papermaking Producing Titanium Dioxide airslide disintegrating mill - Google Patents
A kind of papermaking Producing Titanium Dioxide airslide disintegrating mill Download PDFInfo
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- CN204503270U CN204503270U CN201520188559.1U CN201520188559U CN204503270U CN 204503270 U CN204503270 U CN 204503270U CN 201520188559 U CN201520188559 U CN 201520188559U CN 204503270 U CN204503270 U CN 204503270U
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- China
- Prior art keywords
- papermaking
- titanium dioxide
- classifying turbine
- airslide disintegrating
- disintegrating mill
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Abstract
A kind of papermaking Producing Titanium Dioxide airslide disintegrating mill, comprise the charging system be fixedly connected sequentially from top to bottom, crushing system and discharge system, key is: also comprise hierarchy system, described hierarchy system comprises body, classifying turbine and distribution of air flow cone, rotating shaft is provided with in the top of described body, the sidewall on body top is provided with fines outlet, in described body, center is fixed with classifying turbine, the bottom of classifying turbine is fixed with distribution of air flow cone, described body is provided with transition body, body side bottom described transition body is provided with secondary air inlet, feed pipe is provided with immediately below described body bottom, the side of body bottom is provided with coarse fodder outlet, position adjustments pipe is provided with between described transition body and feed pipe.This device has set up hierarchy system, is conducive to the effect and the production efficiency that improve powder pulverizing, reduces processing cost.
Description
Technical field
The utility model relates to research of super-pine crush equipment technical field, particularly a kind of papermaking Producing Titanium Dioxide airslide disintegrating mill.
Background technology
The many raw materials in powder state of the development need of modern production technology and goods.Such as: at military affairs, Aeronautics and Astronautics and electronic applications, utilize superfine powder to manufacture stealth material; At chemical field, petroleum cracking speed after catalyst fine, can be made to improve 1 ~ 5 times; Medicine is after ultra-fine grinding, and the surface energy of medicine is increased greatly, improves the performance of drug effect, absorption facilitating human body etc.The titanium dioxide of papermaking manufacturer production, needs to carry out ultra-fine grinding to semi-finished product, makes its granularity reach requirement.
What this wherein will use is exactly research of super-pine crush equipment, and research of super-pine crush equipment can be divided into by different grinding modes: mechanical impact crusher, vibromill, airslide disintegrating mill (also known as airflow milling), Ball-stirring mill etc.Airslide disintegrating mill is different from other pulverizer, and it is under action of high-speed airflow, and powder is by the shock between particle own, and air-flow is to the impact of the effect of powder impact shear and powder and other parts, friction, shearing and make powder pulverize.Therefore, the powder particle mean size after air-flow crushing is thin, narrower particle size distribution, and particle surface is smooth, and grain shape is regular, and purity is high, active large, good dispersion.The part but air-flow crushing also comes with some shortcomings: equipment energy consumption is large, processing cost is also comparatively large, and the most important thing is that the product needed after processing carries out classification process, what do not reach granularity requirements needs separating twice, adds workload.
Utility model content
In order to overcome the deficiencies in the prior art, the utility model devises a kind of papermaking Producing Titanium Dioxide airslide disintegrating mill, has set up hierarchy system, improves classification efficiency and the productivity ratio of product, reduces production cost.
The technical solution adopted in the utility model is, a kind of papermaking Producing Titanium Dioxide airslide disintegrating mill, comprise charging system, crushing system and discharge system, described charging system, crushing system and discharge system are fixedly connected sequentially from top to bottom, key is: also comprise hierarchy system, described hierarchy system comprises columniform body, classifying turbine and distribution of air flow cone, rotating shaft is provided with in the top of described body, the sidewall on body top is provided with fines outlet, in described body, center is fixed with classifying turbine, the top of classifying turbine is fixedly connected with the bottom of rotating shaft, the bottom of classifying turbine is fixed with distribution of air flow cone, described body bores correspondence position with distribution of air flow and is provided with transition body, body side bottom described transition body is provided with secondary air inlet, the position of secondary air inlet is corresponding with transition body, feed pipe is provided with immediately below described body bottom, the side of body bottom is provided with coarse fodder outlet, position adjustments pipe is provided with between described transition body and feed pipe.
The rotating speed of described classifying turbine is 35r/min.
The rotating speed of described distribution of air flow cone is 50r/min.
Described classifying turbine is for falling mesa structure.
The internal diameter of described position adjustments pipe is less than the internal diameter of feed pipe.
Above described transition body, the internal diameter of body is greater than the internal diameter of body below transition body.
The beneficial effects of the utility model are; this device has set up hierarchy system; after the rotational speed regulation of being bored by classifying turbine and distribution of air flow carries out classification process to powder, separating twice does not then need to shut down; after direct classification, reprocessing can obtain the superfine product that particle diameter is 0.1 μm-0.3 μm; meet the product granularity requirement of producing titanium dioxide for papermaking; therefore, after increasing the airslide disintegrating mill with distribution of air flow cone, be conducive to the effect and the production efficiency that improve powder pulverizing, reduce processing cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of hierarchy system in Fig. 1.
Fig. 3 is classification principle figure.
In accompanying drawing, 1 is charging system, and 2 is crushing systems, and 3 is discharge systems, 4 is hierarchy systems, and 5 is bodies, and 6 is classifying turbines, and 7 is distribution of air flow cones, 8 is rotating shafts, and 9 is fines outlets, and 10 is transition bodies, and 11 is secondary air inlets, 12 is feed pipes, and 13 is coarse fodder outlets, and 14 is position adjustments pipes, r is radius, and S is grading rotor cross section, the centrifugal force of F suffered by particle, R is centripetal force suffered by particle, and P is particle position, and ω is angular speed.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further.
Specific embodiment, as Fig. 1, shown in Fig. 2, a kind of papermaking Producing Titanium Dioxide airslide disintegrating mill, comprise charging system 1, crushing system 2 and discharge system 3, described charging system 1, crushing system 2 and discharge system 3 are fixedly connected sequentially from top to bottom, in order to improve the effect that powder is pulverized, this device also comprises hierarchy system 4, described hierarchy system 4 comprises columniform body 5, classifying turbine 6 and distribution of air flow cone 7, rotating shaft 8 is provided with in the top of described body 5, the sidewall on body 5 top is provided with fines outlet 9, superfine powder after separation is discharged by fines outlet 9, in described body 5, center is fixed with classifying turbine 6, described classifying turbine 6 is for falling mesa structure, the rotating speed of described classifying turbine 6 is 35r/min, the classifying turbine 6 of High Rotation Speed increases centrifugal force and the centripetal force of powder, the top of classifying turbine 6 is fixedly connected with the bottom of rotating shaft 8, motor drives classifying turbine 6 to do high speed rotary motion by rotating shaft 8, the bottom of classifying turbine 6 is fixed with distribution of air flow cone 7, the rotating speed of described distribution of air flow cone 7 is 50r/min, distribution of air flow cone 7 does high-speed motion, described body 5 bores 7 correspondence positions with distribution of air flow and is provided with transition body 10, above described transition body 10, the internal diameter of body 5 is greater than the internal diameter of body 5 below transition body 10, in order to improve the size of wind-force, body 5 side bottom described transition body 10 is provided with secondary air inlet 11, the position of secondary air inlet 11 is corresponding with transition body 10, feed pipe 12 is provided with immediately below described body 5 bottom, powder is enter body 5 from bottom to top by wind-force, the side of body 5 bottom is provided with coarse fodder outlet 13, the coarse fodder do not pulverized is discharged from the coarse fodder outlet 13 of bottom under gravity, position adjustments pipe 14 is provided with between described transition body 10 and feed pipe 12, the internal diameter of described position adjustments pipe 14 is less than the internal diameter of feed pipe 12.
Powder after airslide disintegrating mill is pulverized, hierarchy system 4 is entered under air inducing effect, driven by motor rotating shaft 8 and on classifying turbine 6 and distribution of air flow cone 7 carry out High Rotation Speed, the centrifugal force that powder particles is subject to and centripetal force increase sharply, and are achieved the classification of particle by particle by the balanced action of centrifugal force and centripetal force.As shown in Figure 3, if grading rotor cross section is S, P point, grain diameter is d, and its density is ρ
s, the centrifugal force suffered by this particle:
F＝π/6d
3(ρ
s-ρ)U
θ 2/r(1)
Centripetal force suffered by particle:
R＝kρd
2U
r 2(2)
Through type 1 and formula 2 can obtain F and d
3be directly proportional, R and d
2be directly proportional.Therefore, when the powder particles particle diameter entering into hierarchy system 4 is larger, F>R, particle is to circular motion; When entering into the powder hour of hierarchy system 4, F<R.Resultant direction is identical with R, and particle returns central motion, can realize the collection to the different particle of granule size based on above principle.
As F=R, particle by around radius be r classification circular orbit in ceaselessly rotate, the particle diameter obtained with this understanding is Cut size d
th.Can obtain according to Stokes formula and Newton's formula
ρ in formula
s, ρ---the density g/mL of powder, gas
μ---aerodynamic force viscosity, the dynamic viscosity of Pas air is 0.1810
-4pas
The radius of r---grading rotor, cm
D
th---theoretical critical fire area particle diameter μm
The rotating speed of n---grading rotor, r/min is n according to the rotating speed of known motor
d=1350r/min
The area cm in S---rotor cross section
2
Q---flow through the air quantity cm in cross section
3/ s
From formula 3, the rotating speed of known grading rotor is higher, and the grain diameter obtained after classification is less.
The utility model is when specifically using, the powder be graded is under the carrying of air-flow, the body in classification chamber is entered from bottom to top by feed pipe 12, in uphill process, powder is subject to " pneumatic jig " effect of Secondary Air in secondary air inlet 11, makes the fine powder that is mingled with in meal separated, fine powder is made to continue to rise with air-flow, bore 7 places in distribution of air flow, due to distribution of air flow cone High Rotation Speed, the powder of rising is disperseed and uniform distribution is moved to surrounding.When powder arrives classifying turbine 6th district, because classifying turbine 6 High Rotation Speed produces powerful centrifugal force field, now powder had both been subject to the centripetal force effect that updraft and grader rear portion air exhauster produce, and was subject to again the effect that classifying turbine 6 rotates the centrifugal force produced simultaneously.Now, coarse granule is greater than the effect of centripetal force because of the centrifugal force be subject to, then will be thrown toward barrel and move downward along barrel, discharges through coarse grain outlet.Particulate is then greater than centrifugal force because of the centripetal force be subject to, then from classifying turbine 6 gap with air-flow through particulate outlet discharge, and through after operation collector collection.This device has set up hierarchy system; after the rotational speed regulation of being bored by classifying turbine and distribution of air flow carries out classification process to powder, separating twice does not then need to shut down; after direct classification, reprocessing can obtain the superfine product that particle diameter is 0.1 μm-0.3 μm; meet the product granularity requirement that my company produces titanium dioxide for papermaking; therefore after increasing the airslide disintegrating mill with distribution of air flow cone; be conducive to the effect and the production efficiency that improve powder pulverizing, reduce processing cost.
Claims (6)
1. a papermaking Producing Titanium Dioxide airslide disintegrating mill, comprise charging system (1), crushing system (2) and discharge system (3), described charging system (1), crushing system (2) and discharge system (3) are fixedly connected sequentially from top to bottom, it is characterized in that: also comprise hierarchy system (4), described hierarchy system (4) comprises columniform body (5), classifying turbine (6) and distribution of air flow cone (7), rotating shaft (8) is provided with in the top of described body (5), the sidewall on body (5) top is provided with fines outlet (9), described body (5) interior center is fixed with classifying turbine (6), the top of classifying turbine (6) is fixedly connected with the bottom of rotating shaft (8), the bottom of classifying turbine (6) is fixed with distribution of air flow cone (7), upper and the distribution of air flow of described body (5) is bored (7) correspondence position and is provided with transition body (10), body (5) side of described transition body (10) bottom is provided with secondary air inlet (11), the position of secondary air inlet (11) is corresponding with transition body (10), feed pipe (12) is provided with immediately below described body (5) bottom, the side of body (5) bottom is provided with coarse fodder outlet (13), position adjustments pipe (14) is provided with between described transition body (10) and feed pipe (12).
2. a kind of papermaking Producing Titanium Dioxide airslide disintegrating mill according to claim 1, is characterized in that: the rotating speed of described classifying turbine (6) is 35r/min.
3. a kind of papermaking Producing Titanium Dioxide airslide disintegrating mill according to claim 1, is characterized in that: the rotating speed of described distribution of air flow cone (7) is 50r/min.
4. a kind of papermaking Producing Titanium Dioxide airslide disintegrating mill according to claim 1, is characterized in that: described classifying turbine (6) is for falling mesa structure.
5. a kind of papermaking Producing Titanium Dioxide airslide disintegrating mill according to claim 1, is characterized in that: the internal diameter of described position adjustments pipe (14) is less than the internal diameter of feed pipe (12).
6. a kind of papermaking Producing Titanium Dioxide airslide disintegrating mill according to claim 1, is characterized in that: the internal diameter of described transition body (10) top body (5) is greater than the internal diameter of transition body (10) below body (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520188559.1U CN204503270U (en) | 2015-03-31 | 2015-03-31 | A kind of papermaking Producing Titanium Dioxide airslide disintegrating mill |
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| CN201520188559.1U CN204503270U (en) | 2015-03-31 | 2015-03-31 | A kind of papermaking Producing Titanium Dioxide airslide disintegrating mill |
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|---|---|
| CN204503270U true CN204503270U (en) | 2015-07-29 |
Family
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106076561A (en) * | 2016-07-28 | 2016-11-09 | 李绍光 | A kind of jet mill of granularity continuously adjustable |
| CN111558432A (en) * | 2019-02-13 | 2020-08-21 | 三菱日立电力系统株式会社 | Solid fuel pulverizer, power generation facility provided with same, and solid fuel pulverizing method |
| CN113182070A (en) * | 2021-05-13 | 2021-07-30 | 盐城工学院 | Novel dry type wind-magnetic combined magnetic separator |
-
2015
- 2015-03-31 CN CN201520188559.1U patent/CN204503270U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106076561A (en) * | 2016-07-28 | 2016-11-09 | 李绍光 | A kind of jet mill of granularity continuously adjustable |
| CN111558432A (en) * | 2019-02-13 | 2020-08-21 | 三菱日立电力系统株式会社 | Solid fuel pulverizer, power generation facility provided with same, and solid fuel pulverizing method |
| CN113182070A (en) * | 2021-05-13 | 2021-07-30 | 盐城工学院 | Novel dry type wind-magnetic combined magnetic separator |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20180331 |