CN107138240B - Ball mill and use method thereof - Google Patents
Ball mill and use method thereof Download PDFInfo
- Publication number
- CN107138240B CN107138240B CN201710540427.4A CN201710540427A CN107138240B CN 107138240 B CN107138240 B CN 107138240B CN 201710540427 A CN201710540427 A CN 201710540427A CN 107138240 B CN107138240 B CN 107138240B
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- annular
- nozzles
- ball mill
- driving mechanism
- wall
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000004537 pulping Methods 0.000 claims abstract description 36
- 238000004140 cleaning Methods 0.000 claims abstract description 12
- 239000002002 slurry Substances 0.000 claims description 33
- 238000003756 stirring Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 14
- 239000002699 waste material Substances 0.000 abstract description 11
- 238000000498 ball milling Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 22
- 238000010586 diagram Methods 0.000 description 10
- 238000002360 preparation method Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/10—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with one or a few disintegrating members arranged in the container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/093—Cleaning containers, e.g. tanks by the force of jets or sprays
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention relates to the technical field of ball milling equipment, in particular to a ball mill and a using method thereof. The ball mill comprises a barrel and an air inlet pipe, wherein a cleaning device is arranged in the barrel and comprises an annular air pipe, a driving mechanism and a movable baffle assembly, the annular air pipe is fixedly connected with the inner wall of the barrel, the central line of the annular air pipe is parallel to the axis of the barrel, a plurality of nozzles are arranged on the annular air pipe and are arranged at intervals along the circumferential direction of the annular air pipe, and the openings of the nozzles face the inner wall of the barrel; the driving mechanism drives the movable baffle assembly to move so as to open or close the plurality of nozzles; one end of the air inlet pipe is communicated with the annular air pipe, and the other end of the air inlet pipe is communicated with the high-pressure air source. The invention can timely and effectively remove attachments on the inner wall of the cylinder body, avoids material waste and improves pulping efficiency.
Description
Technical Field
The invention relates to the technical field of ball milling equipment, in particular to a ball mill and a using method thereof.
Background
In the process of preparing slurry, the slurry can splash onto the inner wall of the barrel, if the inner wall of the barrel of the ball mill is not cleaned timely, slurry left on the inner wall of the barrel can dry and harden on the inner wall to form hard blocks, the hard blocks are difficult to fall off automatically, the slurry is often required to be scraped off by a disassembling machine, the cleaning difficulty is very high, the pulping efficiency is reduced, and the material waste is caused.
Disclosure of Invention
The invention aims to provide a ball mill, which solves the technical problems that attachments on the inner wall of a cylinder body are difficult to remove and materials are wasted in the existing ball mill.
The invention also aims to provide a use method of the ball mill, which aims to solve the technical problems that attachments on the inner wall of a cylinder body are difficult to remove and materials are wasted in the use process of the conventional ball mill.
Based on the first object, the invention provides a ball mill, which comprises a cylinder and an air inlet pipe, wherein a cleaning device is arranged in the cylinder, the cleaning device comprises an annular air pipe, a driving mechanism and a movable baffle assembly, the annular air pipe is fixedly connected with the inner wall of the cylinder, the central line of the annular air pipe is parallel to the axis of the cylinder, a plurality of nozzles are arranged on the annular air pipe, the nozzles are arranged at intervals along the circumferential direction of the annular air pipe, and the openings of the nozzles face the inner wall of the cylinder; the driving mechanism drives the movable baffle assembly to move so as to open or close a plurality of nozzles; one end of the air inlet pipe is communicated with the annular air pipe, and the other end of the air inlet pipe is communicated with a high-pressure air source.
Further, the movable baffle assembly comprises an annular baffle and a rotating shaft, a plurality of through holes are formed in the annular baffle, the through holes are arranged at intervals along the circumferential direction of the annular baffle, and the number of the through holes is the same as that of the nozzles; the rotating shaft is connected with the annular baffle through a bracket, and the power output end of the driving mechanism is in transmission connection with the rotating shaft and is used for enabling the annular baffle to rotate along the axis of the annular baffle, so that the through hole is communicated with the nozzle or the through hole is disconnected with the nozzle.
Further, the movable baffle assembly comprises an annular baffle and a support, the annular baffle is fixedly connected with the support, the driving mechanism is a telescopic device, a cylinder body of the telescopic device is fixedly connected with the cylinder body, a piston rod of the telescopic device is fixedly connected with the support, and the telescopic device is used for enabling the annular baffle to reciprocate along the axis of the telescopic device.
Further, the movable baffle assembly comprises an annular retainer ring and a bracket, and an opening for the air inlet pipe to penetrate out is formed in the annular retainer ring; the annular check ring is fixedly connected with the support, the driving mechanism is a telescopic device, a cylinder body of the telescopic device is fixedly connected with the cylinder body, a piston rod of the telescopic device is fixedly connected with the support, and the telescopic device is used for enabling the annular check ring to reciprocate along the axis of the annular check ring.
Further, the nozzle is positioned on the outer annular wall of the annular air pipe.
Further, the pitch of the adjacent two through holes is the same as the pitch of the adjacent two nozzles.
Further, the nozzles are arranged obliquely.
Further, a valve is arranged on the air inlet pipe.
Further, the inside of barrel is provided with the stirring rake, the axis of stirring rake with the axis of annular tuber pipe is parallel.
Based on the second object, the invention also provides a use method of the ball mill, which comprises the following steps:
when pulping, the driving mechanism drives the movable baffle assembly to close a plurality of nozzles;
when the slurry is attached to the inner wall of the cylinder body and needs to be removed, the ball mill pauses pulping, the driving mechanism drives the movable baffle assembly to move, a plurality of nozzles are opened, and high-pressure gas is introduced into the air inlet pipe;
and stopping introducing high-pressure gas, driving the movable baffle assembly again by the driving mechanism to close the nozzles, and continuing pulping by the ball mill.
According to the ball mill provided by the invention, the cleaning device is arranged in the cylinder body, so that attachments on the inner wall of the cylinder body can be timely and effectively removed, and the waste of materials is avoided. When pulping, the driving mechanism drives the movable baffle assembly to close the plurality of nozzles, so that the nozzles are prevented from being blocked by the pulp; when the slurry is adhered to the inner wall of the cylinder body and needs to be removed, the ball mill pauses pulping, the driving mechanism drives the movable baffle assembly to move, the plurality of nozzles are opened, high-pressure gas is introduced into the air inlet pipe and is sprayed to the inner wall of the cylinder body through the nozzles, so that the slurry adhered to the inner wall is dropped and mixed with the slurry in the cylinder body to continue pulping, the pulping efficiency is improved, and the material waste can be effectively avoided.
The use method of the ball mill provided by the invention is applied to the ball mill provided by the invention, and can be used for timely and effectively removing attachments on the inner wall of the cylinder body, so that the material waste is avoided, and the pulping efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a ball mill according to an embodiment of the present invention;
FIG. 2 is a schematic view of a flapper assembly according to a first embodiment of the present invention;
FIG. 3 is a bottom view of an annular baffle and an annular duct according to a first embodiment of the present invention in a slurried state;
FIG. 4 is a bottom view of the annular baffle and the annular duct according to the first embodiment of the present invention when removing attachments;
fig. 5 is a schematic structural diagram of a ball mill according to a second embodiment of the present invention;
fig. 6 is a schematic diagram of a ball mill according to a second embodiment of the present invention when removing attachments;
fig. 7 is a schematic structural diagram of a ball mill according to a third embodiment of the present invention;
FIG. 8 is a top view of an annular collar and an annular duct according to a third embodiment of the present invention;
fig. 9 is a schematic structural diagram of an annular retainer ring according to a third embodiment of the present invention.
Icon: 101-a cylinder; 102-an air inlet pipe; 103-an annular air pipe; 104-a nozzle; 105-annular baffles; 106-rotating shaft; 107-through holes; 108-a first strut; 109-a second strut; 110-an electric motor; 111-valve; 112-stirring paddles; 113-a drive motor; 114-a cylinder; 115-a piston rod; 116-an annular retainer ring; 117-opening.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that, as the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used for convenience in describing the present invention and simplifying the description based on the azimuth or positional relationship shown in the drawings, it should not be construed as limiting the present invention, but rather should indicate or imply that the devices or elements referred to must have a specific azimuth, be constructed and operated in a specific azimuth. Furthermore, the terms "first," "second," "third," and the like, as used herein, are used for descriptive purposes only and are not to be construed as indicating or implying any relative importance.
In the description of the present invention, it should be noted that unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1
Fig. 1 is a schematic structural diagram of a ball mill according to an embodiment of the present invention; FIG. 2 is a schematic view of a flapper assembly according to a first embodiment of the present invention; FIG. 3 is a bottom view of an annular baffle and an annular duct according to a first embodiment of the present invention in a slurried state; fig. 4 is a bottom view of the annular baffle and the annular air duct according to the first embodiment of the present invention when removing attachments. Referring to fig. 1 to 4, the present embodiment provides a ball mill, including a cylinder 101 and an air inlet pipe 102, a cleaning device is provided in the cylinder 101, the cleaning device includes an annular air pipe 103, a driving mechanism and a movable baffle assembly, the annular air pipe 103 is fixedly connected with an inner wall of the cylinder 101, preferably, the annular air pipe 103 is located at the top of the cylinder 101, the cross section of the annular air pipe 103 is rectangular, the center line of the annular air pipe 103 is parallel to the axis of the cylinder 101, a plurality of nozzles 104 are provided on the annular air pipe 103, in the present embodiment, the nozzles 104 are provided on the lower surface of the annular air pipe 103 and are communicated with the annular air pipe 103, the plurality of nozzles 104 are arranged at intervals along the circumferential direction of the annular air pipe 103, and the opening directions of the plurality of nozzles 104 are all toward the inner wall of the cylinder 101; the drive mechanism drives the flapper assembly to move to open or close the plurality of nozzles 104; one end of the air inlet pipe 102 is communicated with the annular air pipe 103, and the other end of the air inlet pipe 102 extends out of the cylinder 101 and is used for being communicated with a high-pressure air source. The ball mill that this embodiment provided through set up belt cleaning device in the inside of barrel 101, can in time clear away the attachment of barrel 101 inner wall effectively, has avoided the material extravagant. When pulping, the driving mechanism drives the movable baffle assembly to close the plurality of nozzles 104, so as to prevent the nozzles 104 from being blocked by the pulp; when the slurry attached to the inner wall of the cylinder 101 needs to be removed, the ball mill pauses pulping, the driving mechanism drives the movable baffle assembly to move, the plurality of nozzles 104 are opened, high-pressure gas is introduced into the air inlet pipe 102, and the high-pressure gas is sprayed to the inner wall of the cylinder 101 through the nozzles 104, so that the slurry attached to the inner wall is dropped and mixed with the slurry in the cylinder 101, pulping is continued, pulping efficiency is improved, and material waste can be effectively avoided. The high-pressure gas in this embodiment may be compressed air or an inert gas such as compressed nitrogen or argon.
In an alternative of the present embodiment, as shown in fig. 2, the movable baffle assembly includes an annular baffle 105 and a rotating shaft 106, a plurality of through holes 107 are provided on the annular baffle 105, the plurality of through holes 107 are provided at intervals along the circumferential direction of the annular baffle 105, and the number of through holes 107 is the same as the number of nozzles 104; the rotating shaft 106 is connected with the annular baffle 105 through a bracket, and preferably, the bracket provided by the embodiment comprises a first supporting rod 108 and a second supporting rod 109 which are mutually perpendicular and crossed, two ends of the first supporting rod 108 are respectively and fixedly connected with the inner side of the annular baffle 105, two ends of the second supporting rod 109 are respectively and fixedly connected with the inner side of the annular baffle 105, and one end of the rotating shaft 106 is fixedly connected with a connecting point between the first supporting rod 108 and the second supporting rod 109; the power output end of the driving mechanism is in transmission connection with the other end of the rotating shaft 106 and is used for enabling the annular baffle 105 to rotate along the axis of the annular baffle 105 so as to enable the through hole 107 to be communicated with the nozzle 104 or enable the through hole 107 to be disconnected with the nozzle 104; preferably, the driving mechanism provided in this embodiment is a motor 110, preferably a motor that is commonly used at present and can control forward and reverse rotation.
Referring to fig. 3, during pulping, the motor 110 drives the annular baffle 105 to close the plurality of nozzles 104, so as to prevent the nozzles 104 from being blocked by the pulp; when the slurry is adhered to the inner wall of the cylinder 101 and needs to be removed, the ball mill pauses the slurry preparation, the motor 110 drives the annular baffle 105 to rotate along the arrow direction A, and when the annular baffle 105 rotates to the position shown in fig. 4, the plurality of nozzles 104 can be opened, high-pressure gas is introduced into the air inlet pipe 102, and the high-pressure gas is sprayed to the inner wall of the cylinder 101 through the nozzles 104, so that the slurry adhered to the inner wall is dropped and mixed with the slurry in the cylinder 101, and the slurry preparation is continued, so that the slurry preparation efficiency is improved, and the material waste can be effectively avoided.
In this alternative, the pitch of the adjacent two through holes 107 is the same as the pitch of the adjacent two nozzles 104. By the mode, the through holes 107 and the nozzles 104 can be completely communicated, the phenomenon that the annular baffle 105 blocks part of the nozzles 104 is avoided, high-pressure gas ejected from the nozzles 104 can be completely emitted to the inner wall of the cylinder 101, and slurry attached to the inner wall can be quickly beaten down.
In this alternative, the nozzles 104 are arranged obliquely.
Preferably, as seen in fig. 1, the nozzle 104 is inclined downwardly, with the axis of the nozzle 104 being at an angle α of 30 to 75 ° to the horizontal.
Preferably, the nozzle 104 provided in this embodiment is a high pressure nozzle as is commonly known.
In this alternative, the intake pipe 102 is provided with a valve 111.
By providing the valve 111 on the intake pipe 102, the intake amount of the high-pressure gas can be controlled so as to select the intake amount of the high-pressure gas according to the actual production situation.
It should be noted that, the air inlet pipe 102 may also be provided with a gas flowmeter for measuring the amount of air intake, so as to adjust the amount of air intake of the high-pressure gas.
In this alternative, the inside of the cylinder 101 is provided with a stirring paddle 112, and the axis of the stirring paddle 112 is parallel to the axis of the annular air duct 103.
One end of the stirring paddle 112 is located outside the cylinder 101 and is in transmission connection with the driving motor 113, the driving motor 113 is usually located above the cylinder 101, and the axis of the power output shaft of the driving motor 113 is usually coincident with the axis of the cylinder 101, so that the axis of the annular air duct 103 in this embodiment is set to be parallel to the axis of the stirring paddle 112, and it can be ensured that the motor 110 and the driving motor 113 can work at respective positions without interfering with each other.
In an alternative of this embodiment, the top of the cylinder 101 is provided with a manhole for a user to repair or replace the cleaning device and the stirring paddle 112 inside the cylinder 101.
In an alternative of this embodiment, a transparent window is provided on the cylinder 101, for a user to observe the pulping process and the degree of the wall sticking of the slurry, so as to start the cleaning device in time, and remove the attachments on the inner wall.
The ball mill provided in this embodiment may be a horizontal ball mill.
Example two
Fig. 5 is a schematic structural diagram of a ball mill according to a second embodiment of the present invention; fig. 6 is a schematic diagram of a ball mill according to a second embodiment of the present invention when removing attachments. Referring to fig. 5 and 6, this embodiment also provides a ball mill, and the ball mill provided in this embodiment describes another implementation scheme of the movable baffle assembly, and the technical solution of the first embodiment is also included in this embodiment, and will not be repeated here. The same reference numerals are used for the same components as those of the first embodiment, and reference is made to the description of the first embodiment.
The movable baffle assembly provided by the embodiment comprises an annular baffle 105 and a support, wherein the annular baffle 105 is fixedly connected with the support, a driving mechanism is a telescopic device, a cylinder body 114 of the telescopic device is fixedly connected with the cylinder body 101, a piston rod 115 of the telescopic device is fixedly connected with the support, and the telescopic device is used for enabling the annular baffle 105 to reciprocate along the axis of the telescopic device.
In an alternative scheme of this embodiment, the bracket includes a first supporting rod 108 and a second supporting rod 109 that are mutually perpendicular and cross, two ends of the first supporting rod 108 are respectively fixedly connected with the inner side of the annular baffle 105, two ends of the second supporting rod 109 are respectively fixedly connected with the inner side of the annular baffle 105, and a piston rod 115 of the telescopic device is fixedly connected with a connecting point between the first supporting rod 108 and the second supporting rod 109.
The telescopic device provided in this embodiment may be an air cylinder, a hydraulic cylinder or an electric cylinder.
Referring to fig. 5, when pulping, the piston rod 115 is contracted so that the annular shutter 105 closes the plurality of nozzles 104, preventing the slurry from blocking the nozzles 104; when the slurry is adhered to the inner wall of the cylinder 101 and needs to be removed, the ball mill pauses pulping, the piston rod 115 stretches out, so that the annular baffle 105 moves along the arrow direction B, when the annular baffle moves to the position shown in fig. 6, the plurality of nozzles 104 can be opened, high-pressure gas is introduced into the air inlet pipe 102, the high-pressure gas is sprayed to the inner wall of the cylinder 101 through the nozzles 104, and the slurry adhered to the inner wall is dropped and mixed with the slurry in the cylinder 101, so that pulping efficiency is improved, and material waste can be effectively avoided.
Example III
Fig. 7 is a schematic structural diagram of a ball mill according to a third embodiment of the present invention; FIG. 8 is a top view of an annular collar and an annular duct according to a third embodiment of the present invention; fig. 9 is a schematic structural diagram of an annular retainer ring according to a third embodiment of the present invention. Referring to fig. 7 to 9, the present embodiment also provides a ball mill, and the ball mill provided in the present embodiment describes another implementation scheme of the movable baffle assembly, and in addition to this, the technical scheme of the second embodiment also belongs to this embodiment, and the description thereof will not be repeated here. The same reference numerals are used for the same components as those of the embodiment, and reference is made to the description of the second embodiment.
The movable baffle assembly provided in this embodiment includes an annular retainer ring 116 and a bracket, as shown in fig. 9, an opening 117 for the air inlet pipe 102 to pass through is provided on the annular retainer ring 116; the annular retainer 116 is fixedly connected with the support, the driving mechanism is a telescopic device, a cylinder 114 of the telescopic device is fixedly connected with the cylinder 101, a piston rod 115 of the telescopic device is fixedly connected with the support, and the telescopic device is used for enabling the annular retainer 116 to reciprocate along the axis of the telescopic device.
Preferably, the support provided in this embodiment includes a first supporting rod 108 and a second supporting rod 109 that are perpendicular to each other and cross-connected, where two ends of the first supporting rod 108 are fixedly connected with the lower surface of the annular retainer 116, two ends of the second supporting rod 109 are fixedly connected with the lower surface of the annular retainer 116, and a piston rod 115 of the telescopic device is fixedly connected with a connection point between the first supporting rod 108 and the second supporting rod 109.
In this alternative, the nozzles 104 are located on the outer annular wall of the annular air duct 103, as shown in fig. 8.
During pulping, the piston rod 115 is contracted, so that the annular check ring 116 closes the plurality of nozzles 104 to prevent the slurry from blocking the nozzles 104; when the slurry attached to the inner wall of the cylinder 101 needs to be removed, the ball mill pauses pulping, the piston rod 115 stretches out, so that the annular check ring 116 moves along the arrow direction C in FIG. 7, the plurality of nozzles 104 are opened, high-pressure gas is introduced into the air inlet pipe 102, and the high-pressure gas is sprayed to the inner wall of the cylinder 101 through the nozzles 104, so that the slurry attached to the inner wall is dropped and mixed with the slurry in the cylinder 101, pulping is continued, pulping efficiency is improved, and material waste can be effectively avoided.
Example IV
The embodiment provides pulping equipment, which comprises the ball mill provided by the first embodiment of the invention. According to the pulping equipment provided by the embodiment of the invention, due to the use of the ball mill provided by the first embodiment of the invention, the pulping efficiency is improved, and the material waste can be effectively avoided.
It should be noted that the ball mill provided in the second and third embodiments of the present invention is also applicable to this embodiment.
Example five
The embodiment provides a ball mill cleaning method, which comprises the following steps:
when pulping, the driving mechanism drives the movable baffle assembly to close the plurality of nozzles 104;
when the slurry is attached to the inner wall of the cylinder 101 and needs to be removed, the ball mill pauses pulping, the driving mechanism drives the movable baffle assembly to move, the plurality of nozzles 104 are opened, and high-pressure gas is introduced into the air inlet pipe 102;
the high pressure gas is stopped, the driving mechanism drives the movable baffle assembly to close the plurality of nozzles 104 again, and the ball mill continues pulping.
The use method of the ball mill provided by the embodiment of the invention is applied to the ball mill provided by the first embodiment of the invention, and can timely and effectively remove attachments on the inner wall of the cylinder 101, so that material waste is avoided, and pulping efficiency is improved.
S1, when pulping, a motor 110 drives an annular baffle 105 to close a plurality of nozzles 104, so that the nozzles 104 are prevented from being blocked by the pulp;
s2, when the slurry attached to the inner wall of the cylinder 101 needs to be removed, the ball mill pauses pulping, the motor 110 drives the annular baffle 105 to rotate along the arrow direction A in FIG. 3, when the annular baffle rotates to the position shown in FIG. 4, the plurality of nozzles 104 can be opened, high-pressure gas is introduced into the air inlet pipe 102, the high-pressure gas is sprayed to the inner wall of the cylinder 101 through the nozzles 104, and thus the slurry attached to the inner wall is beaten down and mixed with the slurry in the cylinder 101;
s3, stopping introducing high-pressure gas, and driving the movable baffle assembly again by the motor 110 to close the plurality of nozzles 104, so that the ball mill continues pulping until the slurry meets the process requirements.
It should be noted that the use method provided in this embodiment can also be applied to the ball mill provided in the second and third embodiments of the present invention.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (6)
1. A ball mill, characterized in that: the cleaning device comprises an annular air pipe, a driving mechanism and a movable baffle assembly, wherein the annular air pipe is fixedly connected with the inner wall of the barrel, the central line of the annular air pipe is parallel to the axis of the barrel, a plurality of nozzles are arranged on the annular air pipe, the nozzles are arranged at intervals along the circumferential direction of the annular air pipe, and the openings of the nozzles face the inner wall of the barrel; the driving mechanism drives the movable baffle assembly to move so as to open or close a plurality of nozzles; one end of the air inlet pipe is communicated with the annular air pipe, and the other end of the air inlet pipe is communicated with a high-pressure air source;
the movable baffle assembly comprises an annular baffle and a rotating shaft, a plurality of through holes are formed in the annular baffle, the through holes are arranged at intervals along the circumferential direction of the annular baffle, and the number of the through holes is the same as that of the nozzles; the power output end of the driving mechanism is in transmission connection with the rotating shaft and is used for enabling the annular baffle to rotate along the axis of the annular baffle so as to enable the through hole to be communicated with the nozzle or enable the through hole to be disconnected from the nozzle;
the distance between the adjacent through holes is the same as the distance between the adjacent nozzles, so that each nozzle can spray to the inner wall of the cylinder body through one through hole;
the nozzles are arranged in a downward inclined mode, and an included angle alpha between the axis of each nozzle and the horizontal plane is 30-75 degrees;
or, the movable baffle assembly comprises an annular baffle and a support, the annular baffle is fixedly connected with the support, the driving mechanism is a telescopic device, a cylinder body of the telescopic device is fixedly connected with the cylinder body, a piston rod of the telescopic device is fixedly connected with the support, the telescopic device is used for enabling the annular baffle to reciprocate along the axis of the telescopic device, the nozzle is arranged in a downward inclined mode, and an included angle alpha between the axis of the nozzle and a horizontal plane is 30-75 degrees;
or the movable baffle assembly comprises an annular retainer ring and a bracket, and an opening for the air inlet pipe to penetrate out is formed in the annular retainer ring; the annular check ring is fixedly connected with the support, the driving mechanism is a telescopic device, a cylinder body of the telescopic device is fixedly connected with the cylinder body, a piston rod of the telescopic device is fixedly connected with the support, the telescopic device is used for enabling the annular check ring to reciprocate along an axis of the annular check ring, the nozzle is arranged in a downward inclined mode, and an included angle alpha between the axis of the nozzle and a horizontal plane is 30-75 degrees.
2. The ball mill according to claim 1, wherein: the nozzle is positioned on the outer annular wall of the annular air pipe.
3. The ball mill according to claim 1, wherein: the pitch of the adjacent two through holes is the same as the pitch of the adjacent two nozzles.
4. A ball mill according to any one of claims 1 to 3, wherein: and a valve is arranged on the air inlet pipe.
5. A ball mill according to any one of claims 1 to 3, wherein: the inside of barrel is provided with the stirring rake, the axis of stirring rake with the axis of annular tuber pipe is parallel.
6. A method of using a ball mill according to any one of claims 1 to 5, wherein: the method comprises the following steps:
when pulping, the driving mechanism drives the movable baffle assembly to close a plurality of nozzles;
when the slurry is attached to the inner wall of the cylinder body and needs to be removed, the ball mill pauses pulping, the driving mechanism drives the movable baffle assembly to move, a plurality of nozzles are opened, and high-pressure gas is introduced into the air inlet pipe;
and stopping introducing high-pressure gas, driving the movable baffle assembly again by the driving mechanism to close the nozzles, and continuing pulping by the ball mill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710540427.4A CN107138240B (en) | 2017-07-04 | 2017-07-04 | Ball mill and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710540427.4A CN107138240B (en) | 2017-07-04 | 2017-07-04 | Ball mill and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107138240A CN107138240A (en) | 2017-09-08 |
| CN107138240B true CN107138240B (en) | 2024-01-26 |
Family
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