CN111250222B

CN111250222B - Raymond mill for ore crushing

Info

Publication number: CN111250222B
Application number: CN202010094730.8A
Authority: CN
Inventors: 邓禄山
Original assignee: QUFU CASTING MATERIALS FACTORY
Current assignee: QUFU CASTING MATERIALS FACTORY
Priority date: 2020-02-16
Filing date: 2020-02-16
Publication date: 2021-08-24
Anticipated expiration: 2040-02-16
Also published as: CN111250222A

Abstract

The invention relates to the technical field of ore crushing, and discloses a Raymond mill for ore crushing, which comprises a driving device fixedly arranged at the bottom of a mill body, wherein a blowing device is arranged between the bottom of the mill body and the top of the driving device, a grinding device positioned in the mill body is fixedly arranged at the end part of the driving device, a scraper knife is arranged below the grinding device and is rotatably connected with the bottom of the blowing device, and a top cover is fixedly arranged at the top of the mill body. This ore is smashed and is used raymond machine, fixed connection between actuating lever and the fan, make the bracing piece rotate the in-process, directly drive the fan and keep coaxial rotation with the actuating lever, make the fan produce the wind channel that blows downwards, thereby scrape the tiny particle material to the outside of branch charging tray, also make partial large granule directly blow back the bottom of raymond machine again by wind-force and continue to grind simultaneously, the partial ascending material receives the influence of gravity, the inner wall landing along the organism, thereby reduce the phenomenon that large granule material and tiny particle material clashed together.

Description

Raymond mill for ore crushing

Technical Field

The invention relates to the technical field of ore crushing, in particular to a Raymond mill for ore crushing.

Background

The Raymond mill is a common milling device and is mainly used for high-fineness powder processing of 280 materials in industries such as barite, calcite, potash feldspar, talc, marble, limestone, dolomite, fluorite, lime, activated clay, activated carbon, bentonite, kaolin, cement, phosphate rock, gypsum, glass, bluestone, petroleum coke, chemical raw material heat-insulating materials and the like, wherein the Mohs hardness of the materials is not more than 9.3, and the humidity of the materials is less than 6%.

The working principle of the existing Raymond mill is that materials are led in through a feeding hole, then a grinding roller is tightly rolled on a grinding ring under the action of centrifugal force, a scraper knife scrapes the materials and sends the materials to the middle of the grinding roller and the grinding ring, the materials are crushed into powder under the action of the grinding force, then the pulverized material is blown up by the fan and passes through the analyzer, the material which reaches the fineness requirement passes through the analyzer, the material which does not reach the requirement returns to the grinding cavity to be continuously ground, the materials passing through the analyzer are separated and collected in the cyclone separator, and part of the materials which do not meet the standard directly fall from top to bottom under the influence of gravity, and in the falling process, part of large-particle materials directly cover the small-particle materials, so that the small-particle materials meeting the specification fall into the interior of the Raymond mill again and are crushed again by the grinding device, and the large granule material that drops directly strikes and grinds the roller, causes the life of grinding the roller to reduce the normal crushing of material.

Disclosure of Invention

In view of the above-mentioned shortcomings of the background art, the invention provides a raymond mill for ore crushing, which has the advantages of high particle separation efficiency and improved durability of a grinding device, and solves the problems in the background art.

The invention provides the following technical scheme: a Raymond mill for ore crushing comprises a mill body, wherein a driving device is fixedly arranged at the bottom of the mill body, a blowing device is arranged between the bottom of the mill body and the top of the driving device, a grinding device positioned in the mill body is fixedly arranged at the end part of the driving device, a scraper knife is arranged below the grinding device and is rotationally connected with the bottom of the blowing device, a top cover is fixedly arranged at the top of the mill body, a motor is fixedly arranged at the top of the top cover, rollers are fixedly sleeved on an output shaft of the motor, the number of the rollers is two, the rollers are vertically arranged on the side surfaces of the mill body and the top cover, a belt is connected between the two rollers in a rolling mode, a rotating rod is fixedly arranged on the side surface of the roller below the motor, the end part of the rotating rod penetrates through the top cover and is connected with a supporting rod positioned in the top cover, and the top of the supporting rod is fixedly connected with a separator positioned in the top cover, the outer wall of sorter rotates with the inner wall of top cap to be connected, the bottom fixedly connected with of bracing piece is located the actuating lever of sorter below, it is equipped with branch charging tray to rotate the cover on the actuating lever, the outer wall fixedly connected with locating lever of branch charging tray, the one end of locating lever and the inner wall fixed connection of top cap, the terminal fixedly connected with of actuating lever is located the fan of branch charging tray below, the outer wall fixed mounting of actuating lever has the position sleeve that is located the branch charging tray top, the outside fixedly connected with scraper of position sleeve.

Preferably, the shape of branch charging tray is conical, the outer wall material of branch charging tray is smooth stainless steel, the slew velocity of scraper is the same with the slew velocity of bracing piece.

Preferably, the air duct direction of the fan is opposite to the air duct direction of the blowing device, and the air duct strength of the blowing device is greater than the air duct strength of the fan.

Preferably, the bottom of scraper is rotated with the top of branch charging tray and is connected, the tip shape of scraper is oblique triangle-shaped, the quantity of scraper is six, the outermost section of scraper extends to the outer lane department of branch charging tray.

The invention has the following beneficial effects:

1. this ore is smashed and is used raymond machine, through the fixed connection between actuating lever and the fan, make the bracing piece rotate the in-process, directly drive the fan and keep coaxial rotation with the actuating lever, make the fan produce the wind channel that blows downwards, thereby scrape the tiny particle material to the outside of branch charging tray, also make partial large granule directly blow back the bottom of raymond machine again by wind-force and continue to grind simultaneously, the partial ascending material receives the influence of gravity, the inner wall landing along the organism, thereby reduce the phenomenon that large granule material and tiny particle material clashed together.

2. This ore is smashed and is used raymond machine, coaxial cooperation through position sleeve and scraper, it is rotatory to make the flabellum rotate the back direct drive scraper, the centrifugal force that utilizes the rotatory production of scraper will drop the material on the branch charging tray directly get rid of the inner wall department to the top cap, rethread top cap bottom arc design, make the material slowly drop until the bottom that drops to the raymond machine along the top cap inner wall, smash the material once more, slow down the material on the one hand and grind the direct striking of roller, on the other hand reduces the speed of material when dropping, thereby increase the life who grinds the roller.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic top view of the distributing tray.

In the figure: 1. a body; 2. a drive device; 3. a blowing device; 4. a grinding device; 5. a top cover; 6. a motor; 7. a roller; 8. a belt; 9. rotating the rod; 10. a support bar; 11. a sorting machine; 12. distributing disks; 13. a drive rod; 14. a fan; 15. a positioning sleeve; 16. and (4) scraping the blade.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, a raymond mill for ore crushing comprises a machine body 1, a driving device 2 fixedly mounted at the bottom of the machine body 1, the driving device 2 mainly comprising a motor, a driving shaft and a gear set and mainly used for providing power to crush ores, a blowing device 3 arranged between the bottom of the machine body 1 and the top of the driving device 2 and playing a role of lifting wind upwards, the blowing device 3 mainly plays a role of blowing small-particle materials upwards, large-particle materials are influenced by gravity and a separator 11 in the blowing process and fall into the raymond mill again to be crushed again, a grinding device 4 positioned in the machine body 1 is fixedly mounted at the end of the driving device 2, the grinding device 4 comprises a grinding roller, a cutter blade and a scraper blade and is connected with the bottom of the blowing device 3 in a rotating manner, the grinding device 4 is provided with the scraper blade and the scraper blade, the top of the machine body 1 is fixedly provided with a top cover 5, the bottom of the top cover 5 is designed in an arc shape, so that when granular materials are thrown to the inner wall of the top cover 5, the materials are buffered, the impact force of the materials is reduced, the impact between the materials and the grinding device 4 is reduced, the durability of the grinding device 4 in use is increased, the service life of the grinding device 4 is prolonged, the top of the top cover 5 is fixedly provided with a motor 6, the motor 6 plays a driving role, mainly a separator 11 plays a rotating role, so that the large granular materials are thrown to the interior of the Raymond machine, an output shaft of the motor 6 is fixedly sleeved with rollers 7, the rollers 7 are two and vertically arranged on the side surfaces of the machine body 1 and the top cover 5, a belt 8 is rolled between the two rollers 7, and a rotating rod 9 is fixedly arranged on the side surface of the roller 7 below the motor 6, the tip of dwang 9 runs through top cap 5 and is connected with and is located the inside bracing piece 10 of top cap 5, the top fixedly connected with of bracing piece 10 is located the inside sorter 11 of top cap 5, the outer wall of sorter 11 rotates with the inner wall of top cap 5 to be connected, the bottom fixedly connected with of bracing piece 10 is located actuating lever 13 of sorter 11 below, it is equipped with branch charging tray 12 to rotate the cover on the actuating lever 13, the outer wall fixedly connected with locating lever of branch charging tray 12, the one end of locating lever and the inner wall fixed connection of top cap 5 mainly fix branch charging tray 12, the terminal fixedly connected with of actuating lever 13 is located fan 14 of branch charging tray 12 below, the outer wall fixed mounting of actuating lever 13 has locating sleeve 15 that is located branch charging tray 12 top, the outside fixedly connected with scraper 16 of locating sleeve 15.

Wherein, the shape of branch charging tray 12 is conical, the outer wall material of branch charging tray 12 is smooth stainless steel, the slew velocity of scraper 16 is the same with the slew velocity of bracing piece 10, and the material of being convenient for on the one hand rises along the outer wall of branch charging tray 12 at the in-process that rises, and on the other hand slows down the frictional force between material and the branch charging tray 12 to reduce the doing work of material.

The air channel direction of the fan 14 is opposite to the air channel direction of the blowing device 3, the air channel force of the blowing device 3 is larger than the air channel force of the fan 14, the air channel of the fan 14 is opposite to the blowing device 3, the main effect is to blow back large particle materials, the large particle materials are prevented from rising to the bottom of the material distribution plate 12 again, the impact between the large particle materials and the sorting machine 11 is reduced, and therefore the durability of the sorting machine 11 in use is improved.

Wherein, the bottom of scraper 16 is rotated with the top of branch charging tray 12 and is connected, the tip shape of scraper 16 is oblique triangle-shaped, the quantity of scraper 16 is six, the outermost section of scraper 16 extends to the outer lane department of branch charging tray 12, and the effect of scraper 16 is exactly to strike off the large granule material that falls on branch charging tray 12 for the material after striking off throws to the inner wall department of top cap 5, thereby reduces the striking dynamics between large granule material and the small granule material, increases the efficiency of ore when smashing.

The working principle is that the materials are placed in the machine body 1 through the feeding hole, then the driving device 2 is started to drive the grinding device 4 to rotate, so that the grinding device 4 is continuously contacted with the inner wall of the machine body 1 to crush the materials, then the blowing device 3 blows out wind power to blow the materials into the top cover 5, the motor 6 on the upper portion of the top cover 5 is started to drive the roller 7 and the belt 8 to rotate and then drive the rotating rod 9 to rotate, then the supporting rod 10 and the sorting machine 11 are driven to screen the materials, in the screening process, the driving rod 13 drives the fan 14 to rotate, an air channel generated after the rotation moves downwards, part of large-particle materials are directly blown to the bottom of the machine body 1 to be continuously ground, part of the materials are influenced by the material distribution plate 12 and move upwards along the outer wall of the material distribution plate 12, small materials are directly discharged out of the machine body 1 through the sorting machine 11, large materials drop downwards, and part of the large materials drop on the material distribution plate 12, with the rotation of the scraper 16, the material is directly thrown to the inner wall of the top cover 5 and slowly drops downwards to continue to be crushed, so that the large-particle material and the small-particle material are continuously crushed.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The Raymond machine for ore crushing comprises a machine body (1), wherein a driving device (2) is fixedly installed at the bottom of the machine body (1), a blowing device (3) is arranged between the bottom of the machine body (1) and the top of the driving device (2), a grinding device (4) positioned inside the machine body (1) is fixedly installed at the end part of the driving device (2), a scraper knife is installed below the grinding device (4) and is rotatably connected with the bottom of the blowing device (3), a top cover (5) is fixedly installed at the top of the machine body (1), a motor (6) is fixedly installed at the top of the top cover (5), rollers (7) are fixedly sleeved on an output shaft of the motor (6), the rollers (7) are vertically arranged on the side surfaces of the machine body (1) and the top cover (5) from top to bottom, a belt (8) is connected between the rollers (7), lie in the side fixed mounting of motor (6) below gyro wheel (7) has dwang (9), the tip of dwang (9) runs through top cap (5) and is connected with bracing piece (10) that are located top cap (5) inside, the top fixedly connected with of bracing piece (10) is located inside sorter (11) of top cap (5), the outer wall of sorter (11) is connected its characterized in that with the inner wall rotation of top cap (5): the utility model discloses a sorting machine, including bracing piece (10), the bottom fixedly connected with of bracing piece (10) is located actuating lever (13) of sorter (11) below, it is equipped with branch charging tray (12) to rotate the cover on actuating lever (13), the outer wall fixedly connected with locating lever of branch charging tray (12), the one end of locating lever and the inner wall fixed connection of top cap (5), the terminal fixedly connected with of actuating lever (13) is located fan (14) of branch charging tray (12) below, the outer wall fixed mounting of actuating lever (13) has locating sleeve (15) that are located branch charging tray (12) top, the outside fixedly connected with scraper (16) of locating sleeve (15).

2. The raymond mill for ore comminution according to claim 1, characterized in that: the shape of branch charging tray (12) is conical, the outer wall material of branch charging tray (12) is smooth stainless steel, the slew velocity of scraper (16) is the same with the slew velocity of bracing piece (10).

3. The raymond mill for ore comminution according to claim 1, characterized in that: the air channel direction of the fan (14) is opposite to the air channel direction of the blowing device (3), and the air channel strength of the blowing device (3) is greater than that of the fan (14).

4. The raymond mill for ore comminution according to claim 1, characterized in that: the bottom of scraper (16) is rotated with the top of branch charging tray (12) and is connected, the tip shape of scraper (16) is oblique triangle-shaped, the quantity of scraper (16) is six, the outermost section of scraper (16) extends to the outer lane department of branch charging tray (12).