CN114433307A - Method for preparing dry sand by ball mill - Google Patents
Method for preparing dry sand by ball mill Download PDFInfo
- Publication number
- CN114433307A CN114433307A CN202011206295.XA CN202011206295A CN114433307A CN 114433307 A CN114433307 A CN 114433307A CN 202011206295 A CN202011206295 A CN 202011206295A CN 114433307 A CN114433307 A CN 114433307A
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- Prior art keywords
- sand
- ball mill
- powder
- lining plate
- coarse
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
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- 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
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- 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
- B02C17/20—Disintegrating members
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- 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
- B02C17/22—Lining for containers
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- 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
- B02C17/24—Driving mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention belongs to the technical field of sand making by a ball mill, in particular to a method for making dry sand by a ball mill, which comprises the following steps of putting limestone into a stone bin, sending the limestone in the stone bin into the ball mill for grinding, sorting the ground materials into a powder sorting machine by a first elevator, wherein the sorted fine powder is a coarse whiting powder product, then sending the coarse whiting powder product into a calcium powder warehouse by a third elevator for storage, sending the sorted coarse powder into a vibrating screen by a second elevator for re-screening, and sending the coarse particles into the vibrating screen for screening after the coarse particles are crushed in a hammer crusher; the ball mill and the powder concentrator form an open circuit grinding system, the ball mill is used for crushing and grinding, the powder concentrator is used for sorting, coarse particles are dry sand, fine powder is heavy calcium powder, a grinding body only adopts steel balls, the grinding body plays a role in crushing, stones are not ground into powder, the sand yield is improved, coarse materials and fine powder sorted by the powder concentrator respectively become products, and raw materials are not wasted.
Description
Technical Field
The invention belongs to the technical field of ball mill sand making, and particularly relates to a method for making dry sand by a ball mill.
Background
The ball mill is a key device for crushing materials after the materials are crushed, the ore mill of the type is characterized in that a certain amount of steel balls are filled in a cylinder body of the ore mill to be used as a grinding medium, the ball mill is widely applied to production industries of cement, silicate products, novel building materials, refractory materials, chemical fertilizers, black and non-ferrous metal ore dressing, glass ceramics and the like, dry-type or wet-type grinding is carried out on various ores and other grindable materials, the ball mill is suitable for grinding various ores and other materials, is widely applied to industries of ore dressing, building materials, chemical engineering and the like, can be divided into a dry-type ore grinding mode and a wet-type ore grinding mode, and can be divided into a lattice type ore grinding mode and an overflow type ore grinding mode according to different ore discharge modes.
The traditional grinding process is that a ball mill is matched with a powder selecting machine to form a closed-circuit grinding system, the ground product is powdery, the size of the powdery material particles is generally 0.08mm or below, the powdery material particles are not suitable for being used as machine-made sand, river sand needs to be dried, and the cost is relatively high.
Disclosure of Invention
To solve the problems set forth in the background art described above. The invention provides a method for drying sand by a ball mill, which aims to solve the problems.
In order to achieve the purpose, the invention provides the following technical scheme: a method for drying sand by a ball mill comprises the following steps:
step S1, limestone is put into the stone bin, and the limestone in the stone bin is sent into a ball mill for grinding;
step S2, the ground materials enter a powder selecting machine for selection through a first elevator, the fine powder obtained by selection is heavy calcium powder products, and then the fine powder enters a calcium powder warehouse for storage through a third elevator;
the coarse powder separated in the step S3 and the step S2 enters a vibrating screen through a second lifting machine for secondary screening, and after coarse particles slide into a hammer type crusher for crushing, the coarse particles enter the vibrating screen again for screening;
and S4, feeding the coarse sand screened by the vibrating screen into a coarse sand warehouse for storage through a belt conveyor, and directly sliding the screened fine sand into a fine sand warehouse for storage.
Preferably, the ball mill includes supporting baseplate, roller barrel and driving motor, the supporting baseplate is fixed in subaerially, the top of supporting baseplate is equipped with the support frame of two symmetric distributions, the support frame with supporting baseplate fixed connection, the roller barrel rotates to be installed the top of support frame, driving motor is fixed in the top of supporting baseplate, just driving motor's output with the transmission of roller barrel is connected.
Preferably, the output end of the driving motor is in transmission connection with a speed reducer, a transmission gear ring is fixedly arranged on the outer side wall of the roller barrel corresponding to the output side of the speed reducer, and the output end of the speed reducer is in transmission connection with the transmission gear ring.
Preferably, the inner side wall of the roller barrel is provided with a lining plate arranged along the circumferential direction, a lining plate support is arranged between the lining plate and the roller barrel, one end of the lining plate support is fixedly connected with the roller barrel, and the other end of the lining plate support is fixedly connected with the lining plate.
Preferably, the lining plate bracket is positioned between two adjacent lining plates.
Preferably, a plurality of steel balls are arranged inside the lining plate, and the steel balls roll inside the lining plate.
Preferably, the inner lining plate is provided with sand leaking holes for sieving and leaking fine sand, and the sand leaking holes penetrate through the inner lining plate.
Preferably, the top of the supporting bottom plate is provided with a discharge port, the discharge port is inclined along the tangential direction of the roller cylinder, and the discharge port is in sliding connection with the surface of the roller cylinder.
Preferably, a sieve groove is formed in the outer side surface of the roller barrel body, close to the discharge port.
Preferably, a feed inlet is formed in one end, close to the stone bin, of the roller barrel.
Compared with the prior art, the invention has the beneficial effects that:
in the invention, a ball mill and a powder concentrator form an open circuit grinding system, 1-2MM block limestone is used as a raw material, the ball mill is used for crushing and grinding, then the powder concentrator is used for separating, coarse particles are dry sand, fine powder is heavy calcium powder, the ball mill is used as a main machine for producing sand, a grinding body in the mill is completely loaded with steel balls with the diameter of 90MM, the loading capacity is designed to be about 30%, the grinding body only adopts the steel balls, the grinding body plays a role in crushing, the stones are not ground into powder, the sand yield is improved, the coarse materials and the fine powder separated by the powder concentrator are respectively used as products, raw materials are not wasted, sand leakage holes are formed in an inner lining plate of the ball mill, when the limestone is crushed, particles with smaller particle size can leak from the sand leakage holes and are not crushed into powder by the steel balls, the proportion of the sand in the produced materials can be improved, thereby making it possible to improve the yield of machine-made sand.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the ball mill according to the present invention;
FIG. 3 is a schematic sectional view of the drum body of the roller of the present invention.
In the figure: 1. a stone bin; 2. a ball mill; 21. a support base plate; 211. a support frame; 22. a roller barrel; 221. a feed inlet; 23. a drive motor; 231. a speed reducer; 232. a transmission gear ring; 24. an inner liner plate; 241. a sand leakage hole; 25. a liner plate bracket; 26. a steel ball; 27. a discharge port; 3. a first hoist; 4. selecting a powder machine; 5. a second hoist; 6. vibrating screen; 7. a hammer crusher; 8. a belt conveyor; 9. a fine sand warehouse; 10. a coarse sand warehouse; 11. a third hoisting machine; 12. calcium powder storehouse.
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. 1-3, the present invention provides the following technical solutions: a method for drying sand by a ball mill comprises the following steps:
step S1, limestone is put into the stone bin 1, and the limestone in the stone bin 1 is sent into a ball mill 2 for grinding;
step S2, the ground material enters a powder concentrator 4 through a first elevator 3 for sorting, the fine powder which is sorted out is a coarse whiting powder product, and then the fine powder enters a calcium powder warehouse 12 through a third elevator 11 for storage;
the coarse powder separated in the step S3 and the step S2 enters a vibrating screen 6 through a second lifting machine 5 to be screened again, and after coarse particles slide into a hammer type crusher 7 to be crushed, the coarse particles enter the vibrating screen 6 again to be screened;
and S4, feeding the coarse sand screened by the vibrating screen 6 into a coarse sand warehouse 10 for storage through a belt conveyor 8, and directly sliding the screened fine sand into a fine sand warehouse 9 for storage.
In the embodiment, the ball mill 2 and the powder concentrator 4 form an open circuit grinding system, 1-2MM massive limestone is used as a raw material, the ball mill 2 is used for crushing and grinding, the powder concentrator 4 is used for separating, coarse particles are dry sand, fine powder is heavy calcium powder, the ball mill 2 is used as a main machine for sand making, a grinding body in the mill is completely loaded with phi 90MM steel balls 26, the loading capacity is designed to be about 30%, the grinding body plays a role in crushing, the stones are not ground into powder, the sand yield is improved, coarse materials and fine powder separated by the powder concentrator are respectively used as products, raw materials are not wasted, sand leakage holes 241 are formed in an inner lining plate 24 of the ball mill 2, when the limestone is crushed, particles with smaller particle sizes can leak out of the sand leakage holes 241 and are not crushed into powder by the stone balls 26, the proportion of the sand in the steel balls can be improved, thereby making it possible to improve the yield of machine-made sand.
Concretely, ball mill 2 is including supporting baseplate 21, roller barrel 22 and driving motor 23, supporting baseplate 21 is fixed in subaerially, supporting baseplate 21's top is equipped with the support frame 211 of two symmetric distributions, support frame 211 and supporting baseplate 21 fixed connection, roller barrel 22 rotates the top of installing at support frame 211, driving motor 23 is fixed in supporting baseplate 21's top, and driving motor 23's output and roller barrel 22 transmission are connected, when using, by driving motor 23 outside circular telegram, then drive roller barrel 22 and rotate, smash the limestone particles.
Specifically, the output end of the driving motor 23 is in transmission connection with the speed reducer 231, the outer side wall of the roller cylinder 22 corresponding to the output side of the speed reducer 231 is fixedly provided with the transmission gear ring 232, the output end of the speed reducer 231 is in transmission connection with the transmission gear ring 232, and the rotating speed of the output side of the driving motor 23 can be reduced by arranging the speed reducer 231, so that the roller cylinder 22 is controlled to rotate.
Specifically, an inner lining plate 24 arranged along the circumferential direction is arranged on the inner side wall of the roller cylinder 22, a lining plate support 25 is arranged between the inner lining plate 24 and the roller cylinder 22, one end of the lining plate support 25 is fixedly connected with the roller cylinder 22, the other end of the lining plate support is fixedly connected with the inner lining plate 24, the lining plate support 25 is positioned between two adjacent lining plates 24, a plurality of steel balls 26 are arranged inside the lining plate 24, the steel balls 26 roll inside the inner lining plate 24, sand leakage holes 241 for screening fine sand are formed in the lining plate 24, the sand leakage holes 241 penetrate through the lining plate 24, a discharge port 27 is arranged at the top of the support base plate 21, the discharge port 27 inclines along the tangential direction of the roller cylinder 22, the discharge port 27 is in sliding connection with the surface of the roller cylinder 22, sand leakage holes 241 are formed in the inner lining plate 24 of the ball mill 2, when limestone is crushed, particles with smaller particle size can leak from the sand leakage holes 241 and are not crushed into powder by the steel balls 26, the proportion of sand in the produced material can be increased, and the yield of machine-made sand can be increased.
Specifically, a sieve groove is formed in the outer side face of the roller cylinder 22 close to the discharge hole 27, and a feed inlet 221 is formed in one end, close to the stone bin 1, of the roller cylinder 22, so that fine sand can be leaked out to be collected.
The working principle and the using process of the invention are as follows: after the grinding head is installed, a coarse powder channel of the powder concentrator 4 is changed into a machine-made sand conveying channel, the sorted coarse powder is not ground by the ball mill 2 but becomes a sand source, sand is classified and screened by the vibrating screen 6, qualified machine-made sand products enter a finished product warehouse, large-particle sand is crushed by the hammer crusher 7 and then is screened again, fine powder sorted by the powder concentrator 4 enters the warehouse through the original channel to become another product heavy calcium powder, 1-2mm limestone is used as a raw material, and in order to increase the sand yield, the original closed-circuit crushing system of the grinding head is removed, so that the ground materials are not broken; in order to make the ground materials thicker, the steel in the second bin of the ball mill 2 is forged and poured out, and is changed into the steel ball 26, and the filling rate is controlled to be below 5 percent; the average sphere diameter of the steel balls 26 in one bin is increased to more than 80mm, the filling rate is controlled to be 30%, the fineness of fine powder and the output of the fine powder can be controlled by adjusting the rotating speed of the main shaft of the powder concentrator 4, and the product is flexibly and conveniently adjusted.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A method for preparing dry sand by a ball mill is characterized in that: the method comprises the following steps:
step S1, limestone is put into the stone bin (1), and the limestone in the stone bin (1) is sent into a ball mill (2) for grinding;
s2, the ground material enters a powder concentrator (4) through a first elevator (3) for sorting, the fine powder which is sorted out is a coarse whiting powder product, and then the fine powder enters a calcium powder warehouse (12) through a third elevator (11) for storage;
the coarse powder separated in the step S3 and the step S2 enters a vibrating screen (6) through a second lifting machine (5) to be screened again, and after coarse particles are fed into a hammer crusher (7) to be crushed, the coarse particles enter the vibrating screen (6) again to be screened;
and S4, feeding the coarse sand screened by the vibrating screen (6) into a coarse sand warehouse (10) through a belt conveyor (8) for storage, and directly feeding the screened fine sand into a fine sand warehouse (9) for storage.
2. The method for drying sand by a ball mill as claimed in claim 1, wherein: ball mill (2) are including supporting baseplate (21), roller barrel (22) and driving motor (23), supporting baseplate (21) are fixed in subaerial, the top of supporting baseplate (21) is equipped with support frame (211) of two symmetric distributions, support frame (211) with supporting baseplate (21) fixed connection, roller barrel (22) rotate to be installed the top of support frame (211), driving motor (23) are fixed in the top of supporting baseplate (21), just the output of driving motor (23) with roller barrel (22) transmission is connected.
3. A method of drying sand in a ball mill as claimed in claim 2, wherein: the output end of the driving motor (23) is in transmission connection with a speed reducer (231), a transmission gear ring (232) is fixedly arranged on the outer side wall of the roller barrel (22) corresponding to the output side of the speed reducer (231), and the output end of the speed reducer (231) is in transmission connection with the transmission gear ring (232).
4. A method of drying sand in a ball mill as claimed in claim 3, wherein: the roller drum is characterized in that an inner lining plate (24) arranged along the circumferential direction is arranged on the inner side wall of the roller drum body (22), a lining plate support (25) is arranged between the inner lining plate (24) and the roller drum body (22), one end of the lining plate support (25) is fixedly connected with the roller drum body (22), and the other end of the lining plate support is fixedly connected with the inner lining plate (24).
5. The method for drying sand by a ball mill as claimed in claim 4, wherein the method comprises the following steps: the lining plate bracket (25) is positioned between two adjacent lining plates (24).
6. The method for drying sand by a ball mill as claimed in claim 5, wherein: a plurality of steel balls (26) are arranged inside the inner lining plate (24), and the steel balls (26) roll inside the inner lining plate (24).
7. The method for drying sand by a ball mill as claimed in claim 6, wherein: the inner lining plate (24) is provided with sand leakage holes (241) for screening and leaking fine sand, and the sand leakage holes (241) penetrate through the inner lining plate (24).
8. The method for drying sand by a ball mill as claimed in claim 7, wherein: the top of supporting baseplate (21) is equipped with discharge gate (27), discharge gate (27) are followed the tangential direction slope of roller barrel (22), just discharge gate (27) with the surface sliding connection of roller barrel (22).
9. The method for drying sand by a ball mill as claimed in claim 8, wherein: and a screen groove is formed on the outer side surface of the roller cylinder (22) close to the discharge hole (27).
10. A method of drying sand in a ball mill as claimed in claim 9, wherein: a feed inlet (221) is formed in one end, close to the stone bin (1), of the roller barrel (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011206295.XA CN114433307B (en) | 2020-11-02 | 2020-11-02 | Method for preparing dry sand by ball mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011206295.XA CN114433307B (en) | 2020-11-02 | 2020-11-02 | Method for preparing dry sand by ball mill |
Publications (2)
| Publication Number | Publication Date |
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| CN114433307A true CN114433307A (en) | 2022-05-06 |
| CN114433307B CN114433307B (en) | 2023-02-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202011206295.XA Active CN114433307B (en) | 2020-11-02 | 2020-11-02 | Method for preparing dry sand by ball mill |
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| Country | Link |
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| CN (1) | CN114433307B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114947034A (en) * | 2022-05-28 | 2022-08-30 | 湖北优唐健康管理有限责任公司 | Formula, process and device of plant-extracted solid beverage for improving fundus oculi lesion of diabetic patient |
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| CN102814227A (en) * | 2012-08-23 | 2012-12-12 | 成都利君科技有限责任公司 | Floating selection method of nonferrous metal mineral powder |
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| CN105236782A (en) * | 2015-09-16 | 2016-01-13 | 重庆富皇混凝土有限公司 | Machine-made sand production system, and production method and application thereof |
| CN110237919A (en) * | 2019-06-05 | 2019-09-17 | 重庆中材参天建材有限公司 | A kind of high quality Machine-made Sand production technology |
| CN209406516U (en) * | 2017-12-26 | 2019-09-20 | 潞城市卓越水泥有限公司 | A kind of roll squeezer-ball mill Joint grinding system |
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2020
- 2020-11-02 CN CN202011206295.XA patent/CN114433307B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101987311A (en) * | 2009-08-01 | 2011-03-23 | 王华业 | Joint grinding process of FPP mill |
| CN102814227A (en) * | 2012-08-23 | 2012-12-12 | 成都利君科技有限责任公司 | Floating selection method of nonferrous metal mineral powder |
| CN103846129A (en) * | 2013-06-28 | 2014-06-11 | 洛阳宇航重工机械有限公司 | Efficient screening pulverizer |
| CN204352972U (en) * | 2014-11-26 | 2015-05-27 | 中国中材国际工程股份有限公司 | A kind of roll squeezer-ball mill Joint grinding system configuring many composition dividing powder separating machines |
| CN105236782A (en) * | 2015-09-16 | 2016-01-13 | 重庆富皇混凝土有限公司 | Machine-made sand production system, and production method and application thereof |
| CN209406516U (en) * | 2017-12-26 | 2019-09-20 | 潞城市卓越水泥有限公司 | A kind of roll squeezer-ball mill Joint grinding system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114947034A (en) * | 2022-05-28 | 2022-08-30 | 湖北优唐健康管理有限责任公司 | Formula, process and device of plant-extracted solid beverage for improving fundus oculi lesion of diabetic patient |
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| CN114433307B (en) | 2023-02-14 |
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