CN107362912B - Centrifugal bubble scraping device of flotation column - Google Patents
Centrifugal bubble scraping device of flotation column Download PDFInfo
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- CN107362912B CN107362912B CN201710792356.7A CN201710792356A CN107362912B CN 107362912 B CN107362912 B CN 107362912B CN 201710792356 A CN201710792356 A CN 201710792356A CN 107362912 B CN107362912 B CN 107362912B
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- China
- Prior art keywords
- flotation column
- scraper
- scraping
- driving mechanism
- scraping plate
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- 238000005188 flotation Methods 0.000 title claims abstract description 95
- 238000007790 scraping Methods 0.000 title claims abstract description 72
- 230000007246 mechanism Effects 0.000 claims abstract description 81
- 239000006260 foam Substances 0.000 claims abstract description 50
- 239000003638 chemical reducing agent Substances 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 13
- 230000000087 stabilizing effect Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000011084 recovery Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 description 6
- 239000011707 mineral Substances 0.000 description 6
- 239000010410 layer Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000011362 coarse particle Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- -1 ferrous metals Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/14—Flotation machines
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biotechnology (AREA)
- Centrifugal Separators (AREA)
Abstract
The invention discloses a centrifugal foam scraping device of a flotation column, which comprises: the device comprises a driving mechanism, a scraping plate mechanism and a steady flow mechanism; the driving mechanism is vertically arranged at the center of the upper part of the flotation column and is fixedly connected with the flotation column; the scraper mechanism is positioned at the upper end of the flotation column and below the driving mechanism, and consists of a plurality of auxiliary scrapers and scrapers arranged at the outer ends of the auxiliary scrapers, wherein a preset angle is kept between each auxiliary scraper and the installed scraper; the steady flow mechanism is fixedly arranged at the center part below the scraping plate of the scraping plate mechanism, and is positioned in the flotation column and fixedly connected with the flotation column; the driving mechanism is connected with the scraping plate mechanism and can drive the scraping plate mechanism to rotate. The device is rational in infrastructure, suits with flotation column structural style, promotes the foam product outflow, has improved the flotation column rate of recovery.
Description
Technical Field
The invention relates to the field of flotation equipment, in particular to a centrifugal foam scraping device of a flotation column.
Background
The flotation column is a mineral separation device and is widely applied to the separation of nonferrous metals, ferrous metals and nonmetallic minerals. The flotation column structure is shown in fig. 1 and generally consists of a feed system 60, a column assembly 20, an aeration system 30, and a level control system 40. When the air direct flotation column works, high-pressure air (0.5-0.7 MPa) from an air compressor is sprayed into the flotation column at a high speed through an air charging system 3 arranged at the lower part of the flotation column, a large number of tiny bubbles are generated under the shearing action of ore pulp in the flotation column, and the bubbles slowly rise from the bottom of the column; the ore pulp is fed from the height of 2/3 of the column, and flows downwards slowly after being evenly distributed by an ore feeding system; mineral particles in the ore pulp and bubbles are collided in the column in a countercurrent mode, useful minerals attached to the bubbles float to a foam area, and products flow out of a foam groove after secondary enrichment; mineral particles which are not attached to bubbles flow downwards along with the ore pulp flow and are discharged through a bottom flow port of a liquid level control system, as shown in fig. 2 and 3, the cross section of the current flotation column body is mostly circular, foam scraping is generally carried out only by self-overflow, a foam scraping device 50 is additionally arranged on some flotation columns, a scraping plate and a shaft system thereof are horizontally arranged, and a foam scraping function is realized through motor transmission, as shown in fig. 4 and 5.
The existing flotation column body is high in height, the foam layer is generally thicker, compared with conventional flotation equipment, the bubble dehydration effect on the surface layer of the foam layer is more remarkable, the foam fluidity is poor, and for certain flotation processes with coarse particles, high yield and high viscosity, recovery of the flotation column foam product only by a self-overflow mode can lead to low recovery rate of target minerals. The existing flotation column foam scraping technology is essentially based on the design scheme of a U-shaped or square groove flotation machine foam scraping device, a plurality of driving devices are needed to compensate for the mismatch of the shapes of the linear scraping plates and the circumferential overflow weirs, the phenomenon that part of flotation column overflow weirs cannot play a role in actual operation still exists, the process adaptability is relatively poor, and the use effect is limited by the specification of the flotation column.
Disclosure of Invention
Based on the problems existing in the prior art, the invention aims to provide a centrifugal foam scraping device for a flotation column, which can reasonably distribute equipment space, is suitable for the structural form of the flotation column, promotes the outflow of foam products and improves the recovery rate of the flotation column.
The invention aims at realizing the following technical scheme:
the embodiment of the invention provides a centrifugal foam scraping device of a flotation column, which comprises the following components:
the device comprises a driving mechanism, a scraping plate mechanism and a steady flow mechanism; wherein,,
the driving mechanism is vertically arranged at the center of the upper part of the flotation column and is fixedly connected with the flotation column;
the scraper mechanism is positioned at the upper end of the flotation column and below the driving mechanism, and consists of a plurality of auxiliary scrapers and scrapers arranged at the outer ends of the auxiliary scrapers, wherein a preset angle is kept between each auxiliary scraper and the installed scraper;
the flow stabilizing mechanism is fixedly arranged at the central part below the scraping plate of the scraping plate mechanism, is positioned in the flotation column and is fixedly connected with the flotation column;
the driving mechanism is connected with the scraping plate mechanism and can drive the scraping plate mechanism to rotate.
As can be seen from the technical scheme provided by the invention, the centrifugal foam scraping device for the flotation column provided by the embodiment of the invention has the beneficial effects that:
the driving mechanism is vertically arranged at the center of the upper part of the flotation column, the driving mechanism drives the scraping plate mechanism to rotate on the flotation column, and a preset angle is kept between the scraping plate of the scraping plate mechanism and the support by utilizing the centrifugal effect on foam generated during rotation, so that foam products are thrown into the foam collecting tank of the flotation column. Because only one set of driving mechanism, scraping plate mechanism and steady flow mechanism are arranged, the device has reasonable structure, is suitable for the structural form of the flotation column, promotes the outflow of foam products and improves the recovery rate of the flotation column.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a prior art air direct flotation column.
Fig. 2 is a front view of a prior art air direct flotation column froth self-overflow version.
Fig. 3 is a top view of a prior art air direct flotation column froth self-overflow version.
Fig. 4 is a schematic front view of a conventional flotation column froth scraping device.
Fig. 5 is a schematic top view of a conventional flotation column froth scraping device.
Fig. 6 is a schematic structural diagram of a centrifugal froth scraping device for a flotation column according to an embodiment of the present invention.
Fig. 7 is a top view of fig. 6.
Fig. 8 is an enlarged schematic view of the drive mechanism in the centrifugal froth scraping device of the flotation column illustrated in fig. 6.
Fig. 9 is an enlarged schematic view of the scraper mechanism in the centrifugal froth scraping device of the flotation column illustrated in fig. 6.
Fig. 10 is an enlarged schematic view of a flow stabilizer in the centrifugal froth scraping device of the flotation column illustrated in fig. 6.
Fig. 6 to 10: 1-a driving mechanism; 2-a scraper mechanism; 3-a steady flow mechanism; 4-a current stabilizer; 5-fixing pieces; 6-a speed reducer motor; 7-a motor bracket; 8-coupling; 9-protecting cover; 10-bearing; 11-a scraper drive shaft; 12-scraping plate; 13-spokes.
Description of the embodiments
The following description of the embodiments of the present invention will clearly and fully describe the technical solutions of the embodiments of the present invention in conjunction with the specific contents of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. 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 fall within the scope of the invention. What is not described in detail in the embodiments of the present invention belongs to the prior art known to those skilled in the art.
As shown in fig. 6, 7 and 9, a centrifugal froth scraping device for a flotation column according to an embodiment of the present invention includes:
the device comprises a driving mechanism, a scraping plate mechanism and a steady flow mechanism; wherein,,
the driving mechanism is vertically arranged at the center of the upper part of the flotation column and is fixedly connected with the flotation column;
the scraper mechanism is positioned at the upper end of the flotation column and below the driving mechanism, and consists of a plurality of auxiliary scrapers and scrapers arranged at the outer ends of the auxiliary scrapers, wherein a preset angle is kept between each auxiliary scraper and the installed scraper;
the steady flow mechanism is fixedly arranged at the center part below the scraping plate of the scraping plate mechanism, and is positioned in the flotation column and fixedly connected with the flotation column;
the driving mechanism is connected with the scraping plate mechanism and can drive the scraping plate mechanism to rotate.
In the centrifugal foam scraping device, two branches are arranged in a linear arrangement, two scraping plates are respectively arranged at the outer ends of the two branches, and each branch is at a certain angle with the installed scraping plate. Preferably, the angle between the support and the installed scraping plate is 30-60 degrees, preferably 45 degrees, specifically, the outer end of the support is provided with a bending, the bending angle is 30-60 degrees, preferably 45 degrees, and the angle is provided, so that the scraping effect of the scraping plate can be ensured, and certain strength of the support can be ensured.
As shown in fig. 8, in the centrifugal type foam shaving apparatus, the driving mechanism includes: the device comprises a speed reducer motor, a motor bracket, a coupling, a bearing and a scraper transmission shaft;
the speed reducer motor is vertically arranged at the center of the upper part of the flotation column through a motor bracket, and the motor bracket is fixed on a cross beam at the upper part of the flotation column;
the scraper transmission shaft for connecting the scraper mechanism is supported and installed on the motor bracket through a bearing and is positioned below the speed reducer motor;
the main shaft of the speed reducer motor is connected with the scraper blade transmission shaft through the coupling, and can drive the scraper blade transmission shaft to drive the plate mechanism to rotate.
The driving mechanism further includes: the protective cover is arranged on the bearing and can protect the bearing.
As shown in fig. 10, in the centrifugal foam shaving apparatus, the flow stabilizing mechanism includes: a fixing piece and a steady flow plate; wherein,,
the plurality of fixing pieces are radially arranged on the steady flow plate; the flow stabilizing plate is of an annular groove structure.
The foam scraping device with the structure can more reasonably distribute equipment space due to the fact that only one driving mechanism and one scraping plate mechanism are arranged, is matched with the structure of the flotation column when the foam scraping device is used, can promote the outflow of foam products through centrifugal action, and improves recovery rate of the flotation column.
Embodiments of the present invention are described in detail below.
As shown in fig. 6 and 7, the centrifugal foam scraping device for a flotation column provided in this embodiment mainly includes: a driving mechanism 1, a scraping plate mechanism 2 and a steady flow mechanism 3; wherein, actuating mechanism includes: the motor bracket 7 is fixed on a cross beam at the upper part of the flotation column and is used for installing the speed reducer motor 6 so as to make the speed reducer motor run stably; the speed reducer motor 6 is arranged on the motor bracket 7 and is used for driving the main shaft to rotate so as to drive the scraping plate mechanism to move; the coupler 8 is connected with a main shaft of the speed reducer motor 6 and the scraper transmission shaft 11; a bearing 10, which is arranged on the motor bracket 7 and supports the scraper drive shaft 11 to rotate smoothly; a scraper drive shaft 11 capable of transmitting the rotation of the speed reducer motor to the scraper of the scraper mechanism 2; the protective cover 9 is arranged on the bearing 10 and can prevent dust, ore pulp and the like from polluting lubricating oil of the bearing 10;
the squeegee mechanism includes: the two supporting arms 13 are arranged in a straight line and serve as supporting and energy transmission mechanisms of the scraping plates, the two scraping plates 12 are respectively arranged at the outer ends of the two supporting arms 13, and can push foam to flow out from the overflow weir of the flotation column.
The steady flow mechanism includes: the steady flow plate 4 is used for stabilizing the foam layer and preventing the center of the foam layer from rotating due to centrifugal scraping of the outer edge foam; the fixing piece 5 is fixedly connected with the inner wall of the flotation column and used for keeping the relative position of the steady flow plate 4, and can also have the function of a foam tank in the flotation column when the diameter of the flotation column is larger.
In the foam scraping device, a speed reducer motor of the driving mechanism is vertically arranged at the center position of the upper part of the flotation column, and the scraper transmission shaft of the scraper mechanism is driven under the combined action of connecting pieces such as a coupler and the like, and then the scraper transmission shaft drives the scraper to rotate by means of support assistance. The technical characteristics that the flotation column is not provided with a stirring device are utilized, the equipment space is reasonably distributed, and the necessity of arranging a multi-scraper driving mechanism is eliminated. The scraping plate is connected with the support at a certain angle, and can generate a centrifugal effect on foam during rotation, so that foam products are thrown into the foam collecting tank of the flotation column, the foam products of the flotation column are effectively promoted to be discharged, and the recovery rate of the flotation column is improved.
The centrifugal foam scraping device of the flotation column can generate centrifugal effect on the foam on the surface layer of the flotation column, throw foam products into the foam collecting tank of the flotation column, remarkably increase the outflow speed of the foam, shorten the residence time of the foam in the flotation column, improve the recovery rate of the flotation column, and is particularly suitable for the flotation process with coarse particles, high yield and high viscosity. The speed reducer motor is vertically arranged at the center of the upper part of the flotation column, the technical characteristic that the flotation column is not provided with a stirring device is utilized, the equipment space is reasonably distributed, the necessity of setting a plurality of scraper driving mechanisms is eliminated, and the structure of the flotation column is simplified. There is certain angle between scraper blade and the branch and assist, can produce centrifugal action to the foam, and whole overflow weir circumference can be swept over to the scraper blade when rotatory, and structural symmetry is good, has increased the utilization efficiency of flotation column overflow weir. The whole foam scraping device is simple in structure, convenient to replace and easy to maintain.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims (4)
1. A flotation column centrifugal froth scraping device, comprising:
the device comprises a driving mechanism, a scraping plate mechanism and a steady flow mechanism; wherein,,
the driving mechanism is vertically arranged at the center of the upper part of the flotation column and is fixedly connected with the flotation column;
the scraper mechanism is positioned at the upper end of the flotation column and below the driving mechanism, and consists of a plurality of auxiliary scrapers and scrapers arranged at the outer ends of the auxiliary scrapers, wherein a preset angle is kept between each auxiliary scraper and the installed scraper; the two auxiliary scrapers are arranged in a straight line, and the two scrapers are respectively arranged at the outer ends of the two auxiliary scrapers; the angle between the support and the installed scraping plate is 30-60 degrees;
the flow stabilizing mechanism is fixedly arranged at the central part below the scraping plate of the scraping plate mechanism, is positioned in the flotation column and is fixedly connected with the flotation column; the steady flow mechanism includes: a fixing piece and a steady flow plate; the plurality of fixing pieces are radially arranged on the steady flow plate and fixedly connected with the inner wall of the flotation column; the flow stabilizing plate is of an annular groove structure, and the scraping plates are positioned on the outer side of the annular groove structure, so that the flow stabilizing plate is used for stabilizing a foam layer and preventing the center of the foam layer from rotating due to centrifugal scraping of foam at the outer edge;
the driving mechanism is connected with the scraping plate mechanism and can drive the scraping plate mechanism to rotate.
2. A centrifugal froth scraping device for a flotation column according to claim 1, wherein the driving mechanism comprises:
the device comprises a speed reducer motor, a motor bracket, a coupling, a bearing and a scraper transmission shaft; wherein,,
the motor bracket is fixed on a cross beam at the upper part of the flotation column;
the speed reducer motor is vertically arranged at the center of the upper part of the flotation column through the motor bracket;
the scraper transmission shaft used for connecting the scraper mechanism is supported and installed on the motor bracket through the bearing and is positioned below the speed reducer motor;
and a main shaft of the speed reducer motor is connected with the scraper transmission shaft through a coupler and can drive the scraper transmission shaft to drive the scraper mechanism to rotate.
3. A centrifugal froth scraping device for a flotation column according to claim 2, wherein the driving mechanism further comprises:
and the protective cover is arranged on the bearing.
4. The centrifugal bubble scraping device for the flotation column according to claim 1, wherein the number of the fixing pieces is six, and the fixing pieces are uniformly distributed on the flow stabilizing plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710792356.7A CN107362912B (en) | 2017-09-05 | 2017-09-05 | Centrifugal bubble scraping device of flotation column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710792356.7A CN107362912B (en) | 2017-09-05 | 2017-09-05 | Centrifugal bubble scraping device of flotation column |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107362912A CN107362912A (en) | 2017-11-21 |
| CN107362912B true CN107362912B (en) | 2023-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710792356.7A Active CN107362912B (en) | 2017-09-05 | 2017-09-05 | Centrifugal bubble scraping device of flotation column |
Country Status (1)
| Country | Link |
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| CN (1) | CN107362912B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109277203A (en) * | 2018-09-05 | 2019-01-29 | 北矿机电科技有限责任公司 | A kind of foam tank of flotation device |
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|---|---|---|---|---|
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| JPH09285784A (en) * | 1996-04-23 | 1997-11-04 | Shinryo Corp | Scraper |
| CN101293227A (en) * | 2008-06-18 | 2008-10-29 | 昆明理工大学 | Ring shaped air flotation machine |
| CN202061718U (en) * | 2011-05-10 | 2011-12-07 | 李冠东 | Horizontal scraper of flotation column |
| CN102847614A (en) * | 2012-10-18 | 2013-01-02 | 洛阳昶威机械制造安装有限公司 | Short flotation column for selecting gold |
| CN203380005U (en) * | 2013-07-19 | 2014-01-08 | 中化重庆涪陵化工有限公司 | Flotation column foam collection device |
| CN206152981U (en) * | 2016-09-26 | 2017-05-10 | 长春黄金研究院 | Can stabilize flotation cell of ore pulp liquid level |
| CN106669982A (en) * | 2016-06-20 | 2017-05-17 | 中国矿业大学 | Foam scraping device for flotation column and flotation column |
| CN106733225A (en) * | 2016-12-13 | 2017-05-31 | 西藏华泰龙矿业开发有限公司 | A kind of center driving scrapes bubbler |
| CN207694996U (en) * | 2017-09-05 | 2018-08-07 | 北矿机电科技有限责任公司 | A kind of centrifugal float skimming device of flotation column |
-
2017
- 2017-09-05 CN CN201710792356.7A patent/CN107362912B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU636191A1 (en) * | 1976-07-07 | 1978-12-05 | Горьковский Государственный Институт По Проектированию Предприятий Нефтеперерабатывающей И Нефтехимической Промышленности "Горькгипронефтехим" | Device for flotation cleaning of waste water |
| JPH09285784A (en) * | 1996-04-23 | 1997-11-04 | Shinryo Corp | Scraper |
| CN101293227A (en) * | 2008-06-18 | 2008-10-29 | 昆明理工大学 | Ring shaped air flotation machine |
| CN202061718U (en) * | 2011-05-10 | 2011-12-07 | 李冠东 | Horizontal scraper of flotation column |
| CN102847614A (en) * | 2012-10-18 | 2013-01-02 | 洛阳昶威机械制造安装有限公司 | Short flotation column for selecting gold |
| CN203380005U (en) * | 2013-07-19 | 2014-01-08 | 中化重庆涪陵化工有限公司 | Flotation column foam collection device |
| CN106669982A (en) * | 2016-06-20 | 2017-05-17 | 中国矿业大学 | Foam scraping device for flotation column and flotation column |
| CN206152981U (en) * | 2016-09-26 | 2017-05-10 | 长春黄金研究院 | Can stabilize flotation cell of ore pulp liquid level |
| CN106733225A (en) * | 2016-12-13 | 2017-05-31 | 西藏华泰龙矿业开发有限公司 | A kind of center driving scrapes bubbler |
| CN207694996U (en) * | 2017-09-05 | 2018-08-07 | 北矿机电科技有限责任公司 | A kind of centrifugal float skimming device of flotation column |
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| CN107362912A (en) | 2017-11-21 |
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