CN217615088U

CN217615088U - A ball-milling device for producing fine grain size antimicrobial

Info

Publication number: CN217615088U
Application number: CN202221457121.5U
Authority: CN
Inventors: 不公告发明人
Original assignee: Zhejiang Xiantuo Environmental Protection Technology Co ltd
Current assignee: Zhejiang Xiantuo Environmental Protection Technology Co ltd
Priority date: 2022-06-09
Filing date: 2022-06-09
Publication date: 2022-10-21
Anticipated expiration: 2032-06-09

Abstract

The application relates to the field of crushing equipment, in particular to a ball milling device for producing a fine-grain-size antibacterial agent. A ball milling device for producing a fine-particle-size antibacterial agent comprises a ball mill cylinder, a driving assembly, a stirring mechanism, grinding balls and a rack, wherein the driving assembly is used for driving the ball mill cylinder to rotate around the self-axial direction; the ball mill cylinder is rotationally connected with the frame; the stirring mechanism comprises a second motor and a stirring assembly, the stirring assembly comprises a stirring shaft and a plurality of stirring rod groups, and the distances between every two adjacent stirring rod groups are equal; the single stirring rod group consists of at least three stirring rods; the stirring rod is vertically and fixedly connected with the peripheral side surface of the stirring shaft; the distance between adjacent stirring rods is rotated; the stirring shaft is coaxially and rotationally connected with the ball mill barrel; the output shaft of the second motor is fixedly connected with the stirring shaft, and the second motor drives the stirring shaft to rotate around the self axial direction. The application can be used for pulverizing the antibacterial materials to be subjected to ball milling to be thinner, so that the particle size of the ground antibacterial materials is smaller, and the better antibacterial effect is achieved.

Description

A ball-milling device for producing fine grain size antimicrobial

Technical Field

The application relates to the field of crushing equipment, in particular to a ball milling device for producing a fine-grain-size antibacterial agent.

Background

The antibacterial agent is widely applied to the fields of food, cosmetics, textiles and the like, and plays a key antibacterial safety role. A ball milling device is needed in the production process of the antibacterial agent, and the antibacterial raw materials are subjected to ball milling treatment to meet the requirements of the fineness of the antibacterial agent in different fields.

The ball mill is a crushing device widely used in industrial production. The crushing principle of the ball mill is as follows: when the ball mill body rotates, the material and the grinding medium in the body are attached to the cylinder body to rotate under the action of centrifugal force and friction force, and fall in a projecting shape under the action of gravity after reaching a certain height, so that the material is fully crushed under the action of the friction force between the material and between the material and the grinding medium in the whole process. In the case of antimicrobial agents and production, the grinding media are primarily grinding balls or beads.

In view of the above-described ball mill in the related art, the applicant found the following problems: the average particle size of the materials ground by the conventional ball mill on the market is larger, the average particle size is more than 10 microns, the problems of smaller specific surface area and larger particle size exist, the improvement of the quality of the finished antibacterial agent is limited, and the production and application of the antibacterial agent are restricted.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems of small specific surface area and large particle size in the related art, limit the improvement of the quality of an antibacterial agent finished product and restrict the production and application of the antibacterial agent, the application provides a ball milling device for producing a fine-particle-size antibacterial agent.

The application provides a ball-milling device for producing fine particle size antibacterial agent, is realized through following technical scheme:

a ball milling device for producing a fine-particle-size antibacterial agent comprises a ball mill cylinder, a driving assembly and a rack, wherein the driving assembly drives the ball mill cylinder to rotate around the axis of the ball mill cylinder; the ball mill cylinder is rotationally connected to the frame; the ball mill is characterized by further comprising a stirring mechanism and grinding balls, wherein the grinding balls are filled in the ball mill cylinder; the stirring mechanism comprises a second motor and a stirring assembly, and the second motor is fixedly connected to the side surface of one end of the ball mill cylinder; the second motor is used for driving the stirring assembly to rotate; the stirring assembly comprises a stirring shaft and a plurality of stirring rod groups, and the distances between the adjacent stirring rod groups are equal; the single stirring rod group consists of at least three stirring rods; the stirring rod is vertically and fixedly connected to the peripheral side surface of the stirring shaft; the distance between every two adjacent stirring rods is equal; the stirring shaft is coaxially and rotatably connected with the ball mill barrel; the output shaft of the second motor is fixedly connected to the stirring shaft, and the second motor drives the stirring shaft to rotate around the self axial direction.

Through adopting above-mentioned technical scheme, under the relative rotation of puddler and ball mill barrel, promoted holistic stirring speed, make the area smash material and more abundant collision, friction of ball, can reach fine crushing effect, obtain the material powder of less particle diameter, and then improved the quality of antibacterial agent. In conclusion, the ball milling antibacterial material can be pulverized to be finer, so that the particle size of the ground antibacterial material is smaller, and the ball milling antibacterial material has a better antibacterial effect.

Optionally, a feed inlet is coaxially and integrally formed in the center of one end face of the ball mill cylinder body, which is far away from the second motor; the feeding port is rotationally connected with a feeding system, the feeding system comprises a conveying pipe, a filling pipe, a screw and a driving motor, one end of the conveying pipe is coaxially and rotationally communicated with the feeding port, and the other end of the conveying pipe is closed; the filling pipe is vertically communicated with the conveying pipe and is positioned outside the ball mill cylinder; the feeding end of the filler pipe is vertically and upwards arranged; the screw is rotationally connected in the conveying pipe; one end of the screw is positioned in the conveying pipe, and the other end of the screw is rotatably arranged outside the conveying pipe in a penetrating manner; the screw rod positioned outside the conveying pipe is fixedly connected with an output shaft of the driving motor; the driving motor is used for driving the screw rod to rotate around the circumferential direction of the screw rod.

Through adopting above-mentioned technical scheme, promote the feed efficiency of this application. In addition, the feeding can be broken to the material in advance in screw extrusion transport, can promote holistic ball-milling effect of this application and ball-milling quality.

Optionally, the number of the screws is two; the number of the driving motors is two; the single screw is fixedly connected with an output shaft of the single driving motor; the central axes of the two screws and the central axis of the conveying pipe are parallel to each other and are positioned in the same plane; the two screws rotate oppositely.

Through adopting above-mentioned technical scheme, adopt the mode of twin-screw extrusion feeding, can carry out the breakage to the material in advance, promote holistic ball-milling effect of this application and ball-milling quality better.

Optionally, one end of the stirring shaft, which is far away from the second motor, is not abutted against the bottom surface of the cylinder bottom of the ball mill, and the rotation direction of the stirring shaft is opposite to the rotation direction of the cylinder body of the ball mill.

By adopting the technical scheme, the materials to be crushed are more fully collided and rubbed with the grinding balls, a good crushing effect can be achieved, material powder with smaller particle size is obtained, and the quality of the antibacterial agent is improved.

Optionally, the puddler is spindle form, just the radius that the puddler kept away from the one end of (mixing) shaft is greater than the radius that is fixed in the one end of (mixing) shaft, the perpendicular distance of the one end that the puddler kept away from the (mixing) shaft apart from ball mill barrel inner wall is less than the diameter of grinding ball.

Optionally, the grinding balls are 95 zirconia beads, and the diameter of the 95 zirconia beads is 0.1-0.2mm.

Through adopting above-mentioned technical scheme, multiplicable material of waiting to grind and 95 zirconia pearl area of contact and contact probability can be with waiting to ball-mill antibiotic material pulverization to thinner for the antibiotic material particle diameter after the grinding is littleer, has better antibiotic effect.

Optionally, a discharge opening is formed in the peripheral side wall of the ball mill cylinder, and a magnetic frame, a filter screen and a sealing cover are detachably connected to the inner wall of the discharge opening from inside to outside; the magnetic frame comprises a plastic outer frame and a magnetic rod fixedly connected to the inner wall of the plastic outer frame; the adjacent magnetic rods are parallel to each other and have equal intervals; the filter screen is 5000-6000 meshes.

By adopting the technical scheme, the material is filtered by the filter screen to control the particle size of the discharged material powder to be below 0.2 um.

Optionally, the inner surface of the ball mill cylinder, the outer surface of the stirring shaft and the outer surface of the stirring rod are all integrally formed with wear-resistant polytetrafluoroethylene coatings.

By adopting the technical scheme, the polytetrafluoroethylene coating formed by curing on the inner surface of the ball mill cylinder, the outer surface of the stirring shaft and the outer surface of the stirring rod can improve the wear resistance, further reduce the wear rate and prolong the service life of the whole ball mill.

To sum up, the application comprises the following beneficial technical effects:

the application can crush the antibacterial material to be ball-milled to be finer, so that the particle size of the ground antibacterial material is smaller, and the better antibacterial effect is achieved.

The wear resistance of this application is better, prolongs the life of this application, reduces the maintenance cost.

Drawings

FIG. 1 is a schematic diagram of the overall apparatus of the present application for producing a fine particle size antimicrobial agent.

FIG. 2 isbase:Sub>A cross-sectional view taken along plane A-A of FIG. 1 in the present application.

FIG. 3 is a cross-sectional view taken along plane B-B of FIG. 1 in the present application.

Fig. 4 is a schematic diagram of the feed system of the present application.

Fig. 5 is a schematic structural diagram of a magnetic frame in the present application.

Description of reference numerals: 1. a ball mill cylinder; 11. a feed inlet; 12. a discharge opening; 13. a magnetic frame; 131. a plastic outer frame; 132. a magnetic rod; 14. a filter screen; 2. a drive assembly; 21. a driven gear; 22. a transmission gear; 23. a high-speed motor; 3. a stirring mechanism; 31. a second motor; 32. a stirring assembly; 321. a stirring shaft; 322. a stirring rod group; 3221. a stirring rod; 3222. fixing a sleeve of the stirring rod; 4. a feed system; 41. a filler tube; 42. a screw; 43. a drive motor; 44. a delivery pipe; 45. supporting the table top; 5. grinding balls; 6. a frame; 7. and (7) sealing the cover.

Detailed Description

The present application will be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown.

Referring to fig. 1, the embodiment of the application discloses a ball mill device for producing a fine-particle-size antibacterial agent, which comprises a ball mill barrel 1, a driving assembly 2, a stirring mechanism 3, grinding balls 5 and a frame 6. The ball mill cylinder 1 is a hollow cylinder, and a wear-resistant polytetrafluoroethylene coating is integrally formed on the inner surface of the ball mill cylinder 1. The frame 6 is used for fixing the ball mill barrel 1, and the ball mill barrel 1 is rotatably connected to the frame 6. The driving component 2 drives the ball mill barrel 1 to rotate around the self axial direction. The grinding balls 5 are filled in the ball mill cylinder 1, and the grinding balls 5 are 95 zirconia beads with the diameter of 0.1-0.2mm. The stirring mechanism 3 is used for stirring the grinding balls 5 and materials to be ball-milled, so that the materials with the crushed materials are more fully collided and rubbed with the grinding balls 5, a better crushing effect is achieved, material powder with smaller particle size is obtained, the average particle size can reach 1-3 microns, and the quality of the antibacterial agent obtained after ball milling can be improved.

Referring to fig. 1, the driving assembly 2 includes a high-speed motor 23, a transmission gear 22 and a driven gear 21, the driven gear 21 is coaxially welded to an end face of the ball mill cylinder 1, the transmission gear 22 is welded to an output shaft of the high-speed motor 23, and the driven gear 21 and the transmission gear 22 are engaged with each other. The high-speed motor 23 drives the transmission gear 22 to rotate, and then drives the driven gear 21, so that the ball mill cylinder 1 rotates around the self axial direction.

Referring to fig. 2 and 3, the stirring mechanism 3 includes a second motor 31 and a stirring assembly 32, the second motor 31 is fixedly connected to a side surface of one end of the ball mill cylinder 1, and the second motor 31 is used for driving the stirring assembly 32 to rotate. The stirring assembly 32 includes a stirring shaft 321 and a plurality of stirring rod sets 322, and the number of the stirring rod sets 322 in this embodiment is five. The stirring rod groups 322 are fixedly connected to the axial side wall of the stirring shaft 321, and the distance between every two adjacent stirring rod groups 322 is equal. The single stirring rod group 322 is composed of three stirring rods 3221, the single stirring rod 3221 is vertically and fixedly connected to the peripheral side surface of the stirring shaft 321, and the distances between the adjacent stirring rods 3221 are equal.

Referring to fig. 2 and 3, the stirring shaft 321 is coaxially and rotatably connected to one end of the ball mill cylindrical body 1 away from the driven gear 21. One end of the stirring shaft 321 is located inside the ball mill barrel 1, and the bottom surface of the stirring shaft 321 is not in contact with the inner wall of the ball mill barrel 1 close to the driven gear 21. The other end of the stirring shaft 321 is rotatably arranged on one end face of the ball mill cylinder body 1 far away from the driven gear 21 and is positioned outside the ball mill cylinder body 1. The stirring shaft 321 located outside the ball mill barrel 1 is fixedly connected to the output shaft of the second motor 31 through a coupling. The second motor 31 can drive the stirring shaft 321 to rotate around the self axial direction, and when the stirring ball mill is used, the rotation direction of the stirring shaft 321 is opposite to that of the ball mill cylinder 1, so that the ball milling efficiency can be improved, and ball milling materials with smaller particle sizes can be obtained.

Referring to fig. 2 and 3, the stirring shaft 321 is fixedly connected with five stirring rod fixing sleeves 3222 at equal intervals. The stirring rod fixing sleeve 3222 is two semicircular arc fixing sleeves and fixed by bolts, and a silica gel sleeve is sandwiched between the stirring rod fixing sleeve 3222 and the stirring shaft 321 to enhance the friction force between the two. Three screw holes are equidistantly formed in the outer side of the stirring rod fixing sleeve 3222, the included angle between every two adjacent screw holes is equal, and internal threads are formed in the screw holes.

Referring to fig. 2 and 3, the stirring rod 3221 is shaped like a spindle, an external thread is disposed at one end of the stirring rod 3221 with a small radius, and the stirring rod 3221 is screwed to the stirring rod fixing sleeve 3222. The vertical distance from the end with the large radius of the stirring rod 3221 to the inner surface of the ball mill cylinder 1 is 2mm. In order to improve the service life of the present application, a teflon coating is formed by coating a teflon paint on the outer surface of the stirring shaft 321 and the outer surface of the stirring rod 3221 and curing the teflon paint.

Referring to fig. 4, a feed port 11 is coaxially and integrally formed in the center of an end surface of the ball mill cylinder 1 away from the second motor 31. The central axis of the feeding port 11 and the central axis of the driven gear 21 are collinear with the central axis of the ball mill cylinder 1. The feed inlet 11 is connected with a feed system 4.

Referring to fig. 4, the feeding system 4 includes a conveying pipe 44, a filling pipe 41, two screws 42, two driving motors 43, and a supporting table 45. The bearing is fixedly connected to the inner wall of the feed port 11, and the conveying pipe 44 is coaxially and rotatably communicated with the feed port 11 of the ball mill barrel 1 through the bearing in the feed port 11. One end of the conveying pipe 44 is communicated with the feeding hole 11 of the ball mill cylinder 1, and the other end of the conveying pipe 44 is closed.

The filler pipe 41 is vertically communicated with the outer peripheral side of the conveying pipe 44 away from the feed port, and the opening of the filler pipe 41 is vertically upward. The threaded rods 42 are rotatably connected to the conveying pipes 44, and one end of each threaded rod 42 is positioned inside the conveying pipe 44, and the other end of each threaded rod 42 is rotatably arranged through the conveying pipe 44 and positioned outside the conveying pipe 44. The screw 42 located outside the delivery pipe 44 is fixedly connected to an output shaft of the driving motor 43 through a coupling. The drive motor 43 is fixedly attached to the support table 45. The single driving motor 43 drives the single screw rod 42 to rotate around the self axial direction, and the rotating directions of the two driving motors 43 are opposite, so that the two screw rods 42 rotate oppositely, and the whole ball milling efficiency is improved.

Referring to fig. 5 in combination with fig. 1, a discharge opening 12 for discharging ball-milled materials is opened in the middle section of the peripheral side wall of the ball mill cylinder 1. The inner wall of the discharge opening 12 is detachably clamped with a magnetic frame 13, a filter screen 14 and a sealing cover 7 from inside to outside. The magnetic frame 13 includes a plastic frame 131 and a plurality of magnetic rods 132 fixedly connected to an inner wall of the plastic frame 131, and the adjacent magnetic rods 132 are parallel to each other and have the same distance. The magnetic force frame 13 can adsorb and remove impurities such as iron filings and the like remained in the powder after ball milling, and the quality of the antibacterial agent can be improved. The filter screen 14 is 5000 meshes, and the ball-milling material with the grain diameter smaller than 2.6um can be obtained by filtering through the filter screen 14. The sealing cover 7 is fixedly connected to the outer wall of the ball mill cylinder 1 through bolts.

The principle of the embodiment is as follows: the material to be crushed enters the conveying pipe 44 from the filling pipe 41, enters the ball mill cylinder 1 through the feeding hole 11 under the extrusion of the two screws 42 in the conveying pipe 44, and is primarily crushed under the extrusion of the two screws 42 rotating in opposite directions. Ball mill barrel 1 rotates at a high speed under drive assembly 2's drive, simultaneously, (mixing) shaft 321 rotates to the direction opposite with ball mill barrel 1 under the drive of second motor 31, make puddler 3221 carry out abundant stirring with faster relative speed to material and 95 zirconia pearl in the ball mill barrel 1, choose the 95 zirconia pearl that the diameter is 0.2mm simultaneously for use, make and have bigger area of contact between material and the 95 zirconia pearl, can carry out abundant collision friction to the material, make the particle diameter of the material after smashing more tiny, the last material sieves through 5000 mesh filter screen 14 and unloads, obtain the ball-milling antibacterial material that the granularity is less than 2.6um, the quality of antibacterial material has been guaranteed.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A ball milling device for producing a fine-particle-size antibacterial agent comprises a ball mill cylinder (1), a driving assembly (2) and a frame (6), wherein the driving assembly (2) drives the ball mill cylinder (1) to rotate around the self axial direction; the ball mill cylinder (1) is rotationally connected to the frame (6); the ball mill is characterized by further comprising a stirring mechanism (3) and grinding balls (5), wherein the grinding balls (5) are filled in the ball mill cylinder (1); the stirring mechanism (3) comprises a second motor (31) and a stirring assembly (32), and the second motor (31) is fixedly connected to the side face of one end of the ball mill cylinder (1); the second motor (31) is used for driving the stirring assembly (32) to rotate; the stirring assembly (32) comprises a stirring shaft (321) and a plurality of stirring rod groups (322), and the distances between the adjacent stirring rod groups (322) are equal; the single stirring rod group (322) is composed of at least three stirring rods (3221); the stirring rod (3221) is vertically and fixedly connected to the peripheral side surface of the stirring shaft (321); the distances between the adjacent stirring rods (3221) are equal; the stirring shaft (321) is coaxially and rotatably connected to the ball mill cylinder (1); the output shaft of second motor (31) fixed connection is in (321), second motor (31) drive (321) around self axial rotation (321).

2. A ball milling apparatus for producing a fine particle size antimicrobial agent in accordance with claim 1, wherein: a feed port (11) is coaxially and integrally formed in the center of one end face of the ball mill cylinder (1) far away from the second motor (31); the feeding port (11) is rotatably connected with a feeding system (4), the feeding system (4) comprises a conveying pipe (44), a filling pipe (41), a screw rod (42) and a driving motor (43), one end of the conveying pipe (44) is coaxially and rotatably communicated with the feeding port (11), and the other end of the conveying pipe (44) is closed; the filling pipe (41) is vertically communicated with the conveying pipe (44) and is positioned outside the ball mill cylinder (1); the feeding end of the filler pipe (41) is vertically arranged upwards; the screw rod (42) is rotationally connected in the conveying pipe (44); one end of the screw rod (42) is positioned in the conveying pipe (44), and the other end of the screw rod is rotatably arranged on the conveying pipe (44) in a penetrating way and is positioned outside the conveying pipe (44); the screw rod (42) positioned outside the conveying pipe (44) is fixedly connected with an output shaft of the driving motor (43); the driving motor (43) is used for driving the screw rod (42) to rotate around the circumference of the screw rod.

3. A ball milling apparatus for producing a fine particle size antimicrobial agent in accordance with claim 2, wherein: the number of the screw rods (42) is two; the number of the driving motors (43) is two; the single screw rod (42) is fixedly connected with an output shaft of the single driving motor (43); the central axes of the two screw rods (42) and the central axis of the conveying pipe (44) are parallel to each other and are positioned in the same plane; the two screw rods (42) rotate oppositely.

4. A ball milling apparatus for producing a fine particle size antimicrobial agent in accordance with claim 1, wherein: one end of the stirring shaft (321) far away from the second motor (31) is not abutted against the bottom surface of the cylinder bottom of the ball mill, and the rotation direction of the stirring shaft (321) is opposite to that of the cylinder body (1) of the ball mill.

5. A ball milling apparatus for producing a fine particle size antimicrobial agent in accordance with claim 1, wherein: the stirring rod (3221) is spindle-shaped, the radius of one end, away from the stirring shaft (321), of the stirring rod (3221) is larger than the radius of one end, fixed to the stirring shaft (321), of the end, away from the stirring shaft (321), of the stirring rod (3221), and the vertical distance from the end, away from the stirring shaft (321), of the stirring rod (3221) to the inner wall of the ball mill cylinder (1) is smaller than the diameter of the grinding balls (5).

6. A ball milling apparatus for producing a fine particle size antimicrobial agent in accordance with claim 1, wherein: the grinding balls (5) are 95 zirconium oxide beads, and the diameter of the 95 zirconium oxide beads is 0.1-0.2mm.

7. A ball milling apparatus for producing a fine particle size antimicrobial agent in accordance with claim 1, wherein: a discharge opening (12) is formed in the peripheral side wall of the ball mill cylinder (1), and a magnetic frame (13), a filter screen (14) and a sealing cover (7) are detachably connected to the inner wall of the discharge opening (12) from inside to outside; the magnetic force frame (13) comprises a plastic outer frame (131) and a magnetic force rod (132) fixedly connected to the inner wall of the plastic outer frame (131); the adjacent magnetic rods (132) are parallel to each other and are spaced at equal intervals; the filter screen (14) is 5000-6000 meshes.

8. A ball milling apparatus for producing a fine particle size antimicrobial agent in accordance with claim 1, wherein: the inner surface of the ball mill cylinder body (1), the outer surface of the stirring shaft (321) and the outer surface of the stirring rod (3221) are uniformly and integrally formed with wear-resistant polytetrafluoroethylene coatings.