CN204816715U - High -efficient centrifugation system of nanometer sand mill - Google Patents

Abstract

The utility model relates to a grinding device field, the high -efficient centrifugation system of nanometer sand mill that specifically says so, it includes that cylindricality support and cover establish the separation cover in the support outside, several separation hole has been offered to separation cover perisporium, along radially having offered several punishment in advance hole, the support right -hand member is provided with discharging channel, the punishment in advance hole and discharging channel intercommunication of each separation hole through corresponding along the axial on the support. The utility model discloses set up the piece -rate system components of a whole that can function independently, detachably assembled is comparatively convenient, is convenient for cleanly and the maintenance, the utility model discloses a the central axis in punishment in advance hole is the acute angle with the contained angle that the axis direction of support formed, can accelerate material separation speed, the utility model discloses be equipped with the exhaust passage, the rotor terminal surface produces relative motion vacuum production district with piece -rate system gland terminal surface when the rotor is rotatory, makes the bubble that produces discharge from the exhaust passage in the grinding barrel for ejection of compact speed.

Description

The efficient centrifugal piece-rate system of nanometer sand mill

Technical field

The utility model relates to the industrial equipment field of powder and the nano-milled technology of wet method, is the efficient centrifugal piece-rate system of the nanometer sand mill of superfine powder slurry specifically.

Background technology

Sand mill from appearance since due to excellent performance, the good reputation of scientific research person, corporate boss has been won in material fine field, along with the increasing rapidly of new forms of energy, new material market demand, also increasingly strict to the requirement of its performance and quality, particularly there is stricter requirement in the developed country such as American-European.Germany sends the wet grinding technology of strangling successfully to introduce domestic from eighties of last century the nineties by China.

Sand mill, also known as ball mill, is mainly used in the wet grinding of chemical liquid product, substantially can be divided into vertical grinding machine, horizontal sand mill, basket type sand mill, excellent pin nanometer sand mill etc. according to serviceability.Its main application fields can 2000 be diacritical point.Along with the lifting of people's living standard, light, thin, short and smallization of 3C Product and the fieriness of nanometer fineness materials application, how ultra-fine grinding techniques is applied to the making of nano material and dispersion grinding and becomes important topic instantly, before 2000, business circles institute problems faced for how to improve dispersion grinding efficiency to reduce labour costs, as the industry such as Ran Liao ﹑ Yangization Gao ﹑ Gui Suan Gao ﹑ Tu Liao ﹑ paint, You Mo ﹑ pencil, food.And after 2000, industrial technology bottleneck then for how to obtain miniaturization (nanometer) material and how by nanometer dispersion of materials in final products, as photoelectricity industry TFTLCD ﹑ Jetink ﹑ Ci Cai Liao ﹑ Bao Jian Pin ﹑ bio-pharmaceuticals and the biochemical Chan Ye ﹑ chemical fibre Chan Ye ﹑ building materials Chan Ye ﹑ metal Chan Ye ﹑ soap of Xi born of the same parents Po Sui ﹑ Yangization Wu ﹑ Na rice Cai Liao ﹑ electricity Chan Ye ﹑ Guang electricity Chan Ye ﹑ medicine, leather, electronic ceramics, electrocondution slurry, offset ink, textile, bio-pharmaceuticals, painting printing ink, chip polishing fluid, clasmatosis, cosmetics, ink-jet ink, ceramic ink jet, new forms of energy battery material, metal nano material, plastic material, the industrial circles such as extraordinary nanometer aeronautical material.

Existing lapping mode mainly contains dry method and wet method two kinds, the operation principle of wet grinding sand mill adopts agitation grinding mode, in airtight grinding chamber, abrasive media ball is added before starting working, material to be processed in advance and water be mixed and made into liquid slurry, grinding chamber is delivered to by circulating pump, when rotor high-speed rotates, when driving the motion of abrasive media ball, the abrasive media that drive is called as " ball " and grinding charge (slip) do eddy motion, abrasive media is moved from bottom to top along inner tube wall under the influence of centrifugal force, redrop under the effect of self gravitation when arriving liquid level.Realize the pulverizing to solid particle in solid-liquid phase mixture, this course of work rotor and rod thereof are sold and reciprocating extrusion, grinding, collision powder between mill ball and solid-liquid phase mixed material, produce strong collision, friction, extruding, shear action, milled solid particle, discharge nozzle end winding support has piece-rate system filter screen, piece-rate system mesh size ensures that polished material can pass through smoothly, mill ball not by, then by piece-rate system, grinding material and abrasive media are realized being separated, thus play the effect of refinement material.Material flows into from feed pipe, through closing working chamber and rotor, mill ball effect, flowing out from discharge nozzle, working and carrying out continuously.Existing sand mill discharging piece-rate system screen cloth adopts clearance-type piece-rate system, and its direct separation of material and abrasive media, not only separating effect is poor, and separative efficiency is lower.Most of cylindrical or drum circle, the sieve aperture formed between its screen bars generally has two kinds, and its cross section a kind of is rectangle, and the sieve aperture shortcoming of this screen cloth is that discharging is slow, and is easily blocked by the abrasive media of the bulky grain in material or fragmentation; Its cross section another kind of is trapezoidal, and the sieve aperture discharging of this screen cloth is fast, but shortcoming is easy to wear, and cause sieve aperture cross section to become large, material particular diameter is uncontrollable, and easily occurs leaking the existing picture of abrasive media, and have a strong impact on product quality, therefore service life is short.

Utility model content

For above-mentioned technical problem, the utility model provides a kind of and improves discharging speed and feed separation speed and do not block the efficient centrifugal piece-rate system of the nanometer sand mill of piece-rate system.

The utility model solves the problems of the technologies described above adopted technical scheme: the efficient centrifugal piece-rate system of nanometer sand mill, comprise cylindrical abutment and the separation sleeve being set in this support outer, separation sleeve perisporium offers several sorting hole, described bearing radially offers several material path, bearing right-hand member is provided with tapping channel vertically, and each sorting hole is communicated with tapping channel by corresponding material path.

Further, described bearing left end offers exhaust duct vertically, and this exhaust duct is communicated with the grinding drum of sand mill and described tapping channel, and exhaust duct is provided with filter screen.

Further, described separation sleeve comprises the separator frame be set on bearing and the separate mesh be set in outside separator frame, and separator frame offers several through hole, each through hole is communicated with described material path, and mesh and the described through hole of separate mesh form described sorting hole.

Further, described several material path circumference is distributed on bearing, and the angle that the central axis of each material path and the axis direction of bearing are formed is acute angle.

Further, described acute angle is 30 °--60 °.

Further, the cylindrical side wall that described separator frame comprises sheathed separate mesh and the left and right flange extended along sidewall inward at both ends radial direction, sidewall is offered described through hole; Described bearing left end forms step post, and step post is through the inner ring of left flange, and the right flank of left flange is resisted against on the step surface of step post.

Further, described right flange, sidewall, left flange and bearing surround disengagement chamber, and disengagement chamber is communicated with through hole described in each and material path.

Further, on the left of left flange, be provided with gland, described gland by bolt and step post fastening, gland offers the pore communicated with described exhaust duct.

Further, described bearing right-hand member is provided with step base, is arranged with end cover outside bearing right-hand member, and this end cover left end is resisted against on right flange, right-hand member is resisted against on the step surface of step base.

Further, cover left end diameter of the described end is greater than right-hand member diameter, and left end is connected by arc-shaped transition with right-hand member, makes material and zirconium pearl form freely falling body parabolic motion track and enters separated region.

As can be known from the above technical solutions, piece-rate system split arranges by the utility model, and dismounting assembling more for convenience, is conducive to clean and maintenance; The angle that the central axis of material path of the present utility model and the axis direction of bearing are formed is acute angle, its mesh is a separate single individuality, can accelerate feed separation speed, avoid the shock that abrasive media and sorting hole form front, thus the phenomenon that it also avoid card abrasive media occurs; When sand mill main shaft rotates, rotor end-face and piece-rate system gland end face produce relative motion and form region of no pressure, when material is pushed to piece-rate system from milling zone under the influence of centrifugal force, bubble in material or air also can enter region of no pressure, therefore the utility model impels the bubble produced in grinding drum to discharge from exhaust duct by arranging exhaust duct in piece-rate system, thus quickening discharging speed, avoid putty or not discharging phenomenon.

Accompanying drawing explanation

Fig. 1 is structure cross-sectional schematic of the present utility model.

Detailed description of the invention

The efficient centrifugal piece-rate system (KHANDynamicSeparationPlus) of nanometer sand mill of the present utility model is introduced in detail below in conjunction with Fig. 1, it separation sleeve 3 comprising cylindrical abutment 2 and be set in support outer, separation sleeve perisporium offers several sorting hole 31, described bearing radially offers several material path 21, bearing right-hand member is provided with tapping channel 22 vertically, and each sorting hole is communicated with tapping channel by corresponding material path.Material in grinding drum is by after the abrasive media grinding in bucket, and material and abrasive media are gathered near piece-rate system, and the material through grinding enters tapping channel from sorting hole through material path, then flows out from tapping channel; Piece-rate system of the present utility model adopts the split-type structural of separation sleeve and bearing, is convenient to dismounting and assembling, and is convenient to cleaning or replacing etc., can extend the service life of piece-rate system, and reduce costs.

In the utility model, described bearing 2 left end offers exhaust duct 23 vertically, and this exhaust duct is communicated with grinding drum and described tapping channel, exhaust duct is provided with screen cloth 24, and screen cloth is for isolating the material filtering abrasive media and do not reach fineness requirement; Alternatively, blast pipe can be set on exhaust duct, then on blast pipe, screen cloth be installed.When the rotor rotates, relative motion in grinding drum can form region of no pressure, when being pushed to Disengagement zone from milling zone under the effect of material in centrifugal force and feed pump thrust, material owing to stirring produced bubble or air enters region of no pressure in bucket, can make in product with bubble and air discharge from exhaust duct, thus acceleration discharging, avoid the phenomenon of putty or card piece-rate system.

Separation sleeve 3 of the present utility model comprises the separator frame 32 be set on bearing and the separate mesh 33 be set in outside separator frame, separator frame offers several through hole 321, each through hole is communicated with described material path, and mesh 331 and the through hole 321 of separate mesh form described sorting hole 31.Material through grinding flows into sorting hole from mesh, flow out from material path again, abrasive media can be blocked in grinding drum by mesh, the aperture of mesh can set according to the fineness of product, and whole separate mesh mesh is independent single mesh, the sharpest edges of this kind of structure are that the operation of abrasive media substantially departs from gap and is separated.Separate mesh gap is minimum can be controlled in 0.03mm, uses the ultra-fine microballon abrasive media of 0.1mm, can grind and be separated for sheet with the superfine nano of granular material; Thus avoid the blocking of sand mill discharging place, large discharge, nanoscale are ground and is achieved.

In implementation process, described several material path 21 circumference is distributed on bearing, and the angle that the central axis of each material path and the axis direction of bearing are formed is acute angle, and acute angle is with 30 °--and 60 ° is good, can discharging speed be accelerated like this, avoid piece-rate system discharging gap to block or card media.

The cylindrical side wall 322 that described separator frame 32 of the present utility model comprises sheathed separate mesh and the left and right flange 323,324 extended along sidewall inward at both ends radial direction, sidewall is offered described through hole, bearing left end forms step post 25, step post is through the inner ring of left flange 323, gland 4 is provided with on the left of left flange, described gland by bolt and step post fastening, be convenient to installation and removal, it is connected firmly, gland offers the pore 41 communicated with described exhaust duct simultaneously, make bubble flow into exhaust duct from pore; The right flank of left flange is resisted against on the step surface of step post, makes the connection of separator frame and bearing more firm.

Described right flange 324 of the present utility model, sidewall 322, left flange 323 and bearing 2 surround disengagement chamber 26, disengagement chamber is communicated with each through hole and material path, the material that a part has little time to flow out can be kept in such disengagement chamber, ensure that material is unlikely to block tapping channel, accelerate discharging speed further.

In implementation process, bearing 2 right-hand member is provided with step base 27, is arranged with end cover 5 outside separator frame right-hand member, and this end cover left end is resisted against on right flange, and right-hand member is resisted against on the step surface of step base, separation sleeve is installed more firm; As preferably, cover left end diameter of the described end is greater than right-hand member diameter, left end is connected by arc-shaped transition with right-hand member, make the end be enclosed within sand cylinder like this and form a recessed district of arc, material after grinding can enter separator from the recessed district of arc, make material and zirconium pearl form freely falling body parabolic motion track and enter separated region, improve separating rate further.

Above-mentioned embodiment is only for illustration of the utility model, and be not to restriction of the present utility model, the those of ordinary skill of relevant technical field, when not departing from the utility model spirit and scope, can also make various change and modification, therefore all equivalent technical schemes also should belong to category of the present utility model.

Claims (10)

1. the efficient centrifugal piece-rate system of nanometer sand mill, it is characterized in that: comprise cylindrical abutment and the separation sleeve being set in this support outer, separation sleeve perisporium offers several sorting hole, described bearing radially offers several material path, bearing right-hand member is provided with tapping channel vertically, and each sorting hole is communicated with tapping channel by corresponding material path.

2. centrifugal separation system according to claim 1, is characterized in that: described bearing left end offers exhaust duct vertically, and this exhaust duct is communicated with the grinding drum of sand mill and described tapping channel, and exhaust duct is provided with filter screen.

3. centrifugal separation system according to claim 2, it is characterized in that: described separation sleeve comprises the separator frame be set on bearing and the separate mesh be set in outside separator frame, separator frame offers several through hole, each through hole is communicated with described material path, and mesh and the described through hole of separate mesh form described sorting hole.

4. centrifugal separation system according to claim 1 or 2 or 3, is characterized in that: described several material path circumference is distributed on bearing, and the angle that the central axis of each material path and the axis direction of bearing are formed is acute angle.

5. centrifugal separation system according to claim 4, is characterized in that: described acute angle is 30 °--60 °.

6. centrifugal separation system according to claim 3, is characterized in that: the cylindrical side wall that described separator frame comprises sheathed separate mesh and the left and right flange extended along sidewall inward at both ends radial direction, sidewall is offered described through hole; Described bearing left end forms step post, and step post is through the inner ring of left flange, and the right flank of left flange is resisted against on the step surface of step post.

7. centrifugal separation system according to claim 6, is characterized in that: described right flange, sidewall, left flange and bearing surround disengagement chamber, and disengagement chamber is communicated with through hole described in each and material path.

8. centrifugal separation system according to claim 6, is characterized in that: on the left of left flange, be provided with gland, described gland by bolt and step post fastening, gland offers the pore communicated with described exhaust duct.

9. centrifugal separation system according to claim 6, is characterized in that: described bearing right-hand member is provided with step base, is arranged with end cover outside bearing right-hand member, and this end cover left end is resisted against on right flange, right-hand member is resisted against on the step surface of step base.

10. centrifugal separation system according to claim 9, is characterized in that: cover left end diameter of the described end is greater than right-hand member diameter, and left end is connected by arc-shaped transition with right-hand member.