CN106824554B - Flotation machine for flotation of coarse fraction materials - Google Patents
Flotation machine for flotation of coarse fraction materials Download PDFInfo
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- CN106824554B CN106824554B CN201710109279.0A CN201710109279A CN106824554B CN 106824554 B CN106824554 B CN 106824554B CN 201710109279 A CN201710109279 A CN 201710109279A CN 106824554 B CN106824554 B CN 106824554B
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- flotation
- tank body
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- ore pulp
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- 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
- B03D1/16—Flotation machines with impellers; Subaeration machines
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- 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
- B03D1/02—Froth-flotation processes
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Abstract
The invention relates to a flotation machine for flotation of coarse fraction materials, which comprises a bracket and a flotation tank body, wherein one side of the flotation tank body is provided with an overflow weir for foam overflow, and the flotation machine is characterized by also comprising: the stirring mechanism comprises a stirring rod extending into the flotation tank body, the upper end of the stirring rod is connected with the driving device, and the lower end of the stirring rod is provided with a stirring assembly; the stirring rod is sleeved with a sleeve, an annular cavity formed between the sleeve and the stirring rod is used for conveying air and ore pulp into the flotation tank body, the top end of the sleeve is connected with the support, and the lower part of the sleeve is provided with at least one pulp inlet; and the circulating groove is arranged below the overflow weir and used for recovering ore pulp flowing back from the overflow weir, and the circulating groove is communicated with the annular chamber. The invention provides a good fluid environment for sorting coarse fraction materials, greatly improves the adhesion chance of minerals and bubbles, and effectively improves the condition that fine fraction minerals are not mineralized or mechanically mingled.
Description
Technical Field
The invention relates to a flotation machine for ore separation, in particular to a flotation machine for flotation of coarse fraction materials.
Background
According to the theory of mineral separation, the optimum particle size of flotation is 0.019-0.15 mm, most of the currently developed flotation machines in China mainly aim at the separation in the size fraction range, but a part of ores (such as coal mines, sylvinite ores and the like) can basically realize monomer dissociation in a coarse size fraction (0.3-1.5 mm), and can be directly fed into the flotation machine for separation, if the conventional flotation machine is adapted to the flotation particle size, continuous grinding is needed, which causes extra energy consumption on ore separation, and reduces the dehydration efficiency of final fine tailings, and if the conventional flotation machine is selected to process the ores in the size fraction range of 0.3-1.5 mm, the problems of low stirring force of the flotation machine, easy groove pressing of the flotation tank, low concentrate recovery rate and the like exist The flotation machine has good separation effect and is specially used for separating coarse fraction materials.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art and provides a flotation machine for flotation of coarse fraction materials.
The technical problem to be solved by the invention is realized by the following technical scheme. The invention relates to a flotation machine for coarse fraction material flotation, which comprises a bracket and a flotation tank body, wherein one side of the flotation tank body is provided with an overflow weir for foam overflow, and the flotation machine is characterized by also comprising:
the stirring mechanism comprises a stirring rod extending into the flotation tank body, the upper end of the stirring rod is connected with the driving device, and the lower end of the stirring rod is provided with a stirring assembly;
the stirring rod is sleeved with a sleeve, an annular cavity formed between the sleeve and the stirring rod is used for conveying air and ore pulp into the flotation tank body, the top end of the sleeve is connected with the support, and the lower part of the sleeve is provided with at least one pulp inlet;
the circulation tank is arranged below the overflow weir and used for recovering ore pulp flowing back from the overflow weir, and comprises a circulation tank body, the circulation tank body is fixed on the inner side wall of the flotation tank body below the overflow weir, an ore pulp inlet is arranged at one end of the circulation tank body, an ore pulp outlet is arranged at the other end of the circulation tank body, the ore pulp inlet is correspondingly arranged below the overflow weir, and the ore pulp outlet is connected with one of the pulp inlets.
In the technical scheme of the flotation machine for coarse fraction material flotation, the further preferable technical scheme is characterized in that: the stirring assembly is arranged as a stirring rotor and comprises a disc-shaped rotor bottom plate and a plurality of rotor blades, the rotor blades are radially and annularly arranged on the rotor bottom plate, and the rotor bottom plate is fixedly arranged at the bottom of the stirring rod; the impeller diameter to groove width ratio of the stirring rotor is preferably set to 0.34 to 0.42.
In the technical scheme of the flotation machine for coarse fraction material flotation, the further preferable technical scheme is characterized in that a stirring stator matched with a stirring rotor is installed at the bottom of a sleeve, the stirring stator comprises a disc-shaped stator bottom plate and a plurality of stator blades, the stator blades are uniformly distributed on the stator bottom plate in an annular mode, each stator blade deflects clockwise or anticlockwise by α degrees, the α degree is preferably set to be 20-40 degrees, a stator reserved hole for ore pulp flowing is formed in the center of the stator bottom plate, and the ratio of the diameter of an impeller of the stirring stator to the width of the groove is preferably set to be 0.46-0.56.
In the technical scheme of the flotation machine for coarse fraction material flotation, the further preferable technical scheme is characterized in that: an air inlet channel is arranged above the slurry inlet and is communicated with the annular chamber.
In the technical scheme of the flotation machine for coarse fraction material flotation, the further preferable technical scheme is characterized in that: the circulation cell body is including the fan-shaped dressing trough of inhaling that is linked together and inhaling the thick liquid pipe, and fan-shaped dressing trough of inhaling and flotation cell body lateral wall fixed connection, the ore pulp entry sets up at fan-shaped dressing trough top of inhaling, the ore pulp export sets up and is inhaling thick liquid pipe one end.
In the technical scheme of the flotation machine for coarse fraction material flotation, the further preferable technical scheme is characterized in that: the bottom of the flotation tank body is provided with a material stabilizing and flow blocking component which comprises a plurality of shaping plates and a plurality of connecting rods, wherein the shaping plates are vertically arranged on the connecting rods at intervals to form an integrated material stabilizing and flow blocking component; the number of the connecting rods is preferably 5, and the connecting rods are respectively arranged at four corners and the center of the shaping plate; the distance between two adjacent templates is preferably set to be 200 mm and 400 mm; the height of the material stabilizing and flow blocking member is preferably set to be 150-500 mm.
In the technical scheme of the flotation machine for coarse fraction material flotation, the further preferable technical scheme is characterized in that: a steady flow grating component is transversely installed in the flotation tank body and comprises a plurality of grating plate bodies arranged at intervals, a gap is reserved between every two adjacent grating plate bodies, and the grating plate bodies are connected together through a plurality of connecting plates to form an integrated steady flow grating component; the preferred interval between two adjacent grid plate bodies is 20-60 mm; the total depth of the flotation tank body is set to be H, and the distance from the steady flow grid plate to the bottom of the flotation tank body is preferably 0.34H-0.45H.
In the technical scheme of the flotation machine for coarse fraction material flotation, the further preferable technical scheme is characterized in that: an emptying device is arranged in the flotation tank body and comprises a valve arranged at the bottom of the flotation tank body, and a lifting rod used for closing the valve is arranged above the valve.
In the technical scheme of the flotation machine for coarse fraction material flotation, the further preferable technical scheme is characterized in that: the stirring rod is arranged as a rod body with adjustable length.
Compared with the prior art, the invention has the following advantages:
1. the stirring assembly with special design can generate strong stirring and throwing effects, so that bubbles can be uniformly distributed in various positions of the tank body, and the adhesion chance of minerals and bubbles is greatly improved;
2. the circulating tank is arranged to return the non-mineralized fine ore minerals or the minerals with poor mineralization to the bottom of the tank body of the flotation machine for secondary flotation, so that the fine ore minerals are effectively prevented from being clamped in the foam;
3. by arranging the material stabilizing and flow blocking component, on one hand, the material stabilizing and flow blocking component plays a role in stabilizing the flow, and on the other hand, the speed of ascending water flow of ore pulp is favorably strengthened;
4. by arranging the steady flow grating component, the mixed ore pulp can be favorably accelerated after penetrating out of the steady flow grating plate, and the coarse grain minerals above the steady flow grating plate can be effectively prevented from falling back to the lower part of the grating plate.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic view of the structure of a stirring rotor in the embodiment of the present invention.
Fig. 3 is a bottom view of fig. 2.
Fig. 4 is a schematic structural view of the stirring stator in the embodiment of the invention.
Fig. 5 is a top view of fig. 4.
FIG. 6 is a schematic structural view of a circulation tank in the embodiment of the present invention.
Fig. 7 is a schematic structural diagram of a material stabilizing and flow blocking member in an embodiment of the invention.
Fig. 8 is a right side view of fig. 7.
Fig. 9 is a schematic structural view of a flow stabilizing grid member in an embodiment of the invention.
Fig. 10 is a bottom view of fig. 9.
Fig. 11 is a left side view of fig. 10.
Detailed Description
The embodiments of the present invention will be further described with reference to the accompanying drawings so as to facilitate the further understanding of the present invention by those skilled in the art, and do not limit the right thereto.
Example 1, referring to fig. 1 to 11, a flotation machine for flotation of coarse fraction materials, comprising a support 1 and a flotation cell body 5, wherein an overflow weir 20 for overflow of froth is provided at one side of the flotation cell body, and a froth scraping device 18 for scraping froth is provided above the overflow weir, and is characterized by further comprising:
the stirring mechanism comprises a stirring rod 7 extending into the flotation tank body, the upper end of the stirring rod is connected with the driving device 2, and the lower end of the stirring rod is provided with a stirring assembly;
the stirring rod is sleeved with a sleeve 3, an annular cavity 17 formed between the sleeve 3 and the stirring rod 7 is used for conveying air and ore pulp into the flotation tank body 5, the top end of the sleeve is connected with the bracket, and the lower part of the sleeve is provided with at least one pulp inlet 15;
Example 2, a flotation machine for flotation of coarse fraction material as described in example 1: the stirring component is arranged as a stirring rotor 13 and comprises a disc-shaped rotor bottom plate 21 and a plurality of rotor blades 22, the rotor blades are radially and annularly arranged on the rotor bottom plate, and the rotor bottom plate is fixedly arranged at the bottom of the stirring rod; the impeller diameter to groove width ratio of the stirring rotor is preferably set to 0.34 to 0.42.
Example 3, in the flotation machine for flotation of coarse fraction materials described in example 1 or 2, a stirring stator 9 matched with a stirring rotor 13 is installed at the bottom of a sleeve 3, the stirring stator comprises a disk-shaped stator bottom plate 23 and a plurality of stator blades 24, the stator blades are uniformly distributed on the stator bottom plate in an annular mode, each stator blade deflects clockwise or anticlockwise by α degrees, the α degree is preferably set to be 20-40 degrees, a stator reserved hole 25 for flowing ore pulp is arranged at the center of the stator bottom plate, and the ratio of the impeller diameter of the stirring stator to the groove width is preferably set to be 0.46-0.56.
Example 4, a flotation machine for the flotation of coarse fraction material as described in example 1 or 2 or 3: an air inlet channel 4 is arranged above the slurry inlet 15, and the air inlet channel 4 is communicated with the annular chamber 17.
Example 5, a flotation machine for flotation of coarse fraction material as described in any of examples 1 to 4: circulation cell body is including the fan-shaped dressing trough 26 of inhaling that is linked together and inhale thick liquid pipe 27, and fan-shaped dressing trough and flotation cell body lateral wall fixed connection of inhaling, ore pulp entry 19 sets up at fan-shaped dressing trough 26 top of inhaling, ore pulp export 16 sets up and inhales thick liquid pipe 27 one end. The sector pulp suction groove is formed by surrounding a steel plate, a stainless steel plate or a polyurethane plate, the cavity of the sector pulp suction groove gradually becomes wider from the pulp inlet downwards, the outlet of the sector pulp suction groove is connected with the inlet of a circular pulp suction pipe, the diameter of the circular pulp suction pipe is set to be 300mm, the pulp inlet of the sector pulp suction groove is set to be long-strip-shaped, the width of the pulp inlet is set to be 20-60 mm, the length of the pulp inlet is 100 mm less than that of the groove body of the flotation machine, the pulp inlet is 300mm away from the overflow weir, and the distance between the pulp inlet and the overflow weir is 200 mm.
Example 6, a flotation machine for flotation of coarse fraction material as described in any of examples 1 to 5: the bottom of the flotation tank body is provided with a material stabilizing and flow blocking member 10 which comprises a plurality of shaping plates 28 and a plurality of connecting rods 29, wherein the shaping plates 28 are vertically arranged on the connecting rods 29 at intervals to form an integrated material stabilizing and flow blocking member; the number of the connecting rods is preferably 5, and the connecting rods are respectively arranged at four corners and the center of the shaping plate; the distance between two adjacent templates is preferably set to be 200 mm and 400 mm; the height of the material stabilizing and flow blocking member is preferably set to be 150-500 mm.
Example 7, with reference to figures 10 and 11, a flotation machine for the flotation of coarse fraction material according to any one of examples 1 to 6: a steady flow grating member 8 is transversely arranged in the flotation tank body and comprises a plurality of grating plate bodies 30 arranged at intervals, a gap is reserved between every two adjacent grating plate bodies, and the grating plate bodies are connected together through a plurality of connecting plates 31 to form an integrated steady flow grating member; the preferred interval between two adjacent grid plate bodies is 20-60 mm; the total depth of the flotation tank body is set to be H, and the distance from the steady flow grid plate to the bottom of the flotation tank body is preferably 0.34H-0.45H.
Example 8, with reference to figure 1, a flotation machine for flotation of coarse fraction material according to any of examples 1 to 7: the device also comprises an emptying device 6 for discharging residual ore pulp, wherein the emptying device comprises a valve 11 arranged at the bottom of the flotation tank body, and a lifting rod 12 for closing the valve is arranged above the valve.
Example 9, a flotation machine for flotation of coarse fraction material as described in any of examples 1 to 8: the stirring rod is arranged as a rod body with adjustable length. When the distance between the lower plane of the stirring stator and the top of the stirring rotor blade needs to be adjusted, the length of the stirring rod can be adjusted to realize the purpose.
Claims (6)
1. The utility model provides a flotation machine for coarse fraction material flotation, includes support and flotation cell body, is provided with the overflow weir that is used for the foam to overflow in flotation cell body one side, its characterized in that still includes:
the stirring mechanism comprises a stirring rod extending into the flotation tank body, the upper end of the stirring rod is connected with the driving device, and the lower end of the stirring rod is provided with a stirring assembly;
the stirring rod is sleeved with a sleeve, an annular cavity formed between the sleeve and the stirring rod is used for conveying air and ore pulp into the flotation tank body, the top end of the sleeve is connected with the support, and the lower part of the sleeve is provided with at least one pulp inlet;
the circulating tank is arranged below the overflow weir and used for recovering ore pulp flowing back from the overflow weir, and comprises a circulating tank body, wherein the circulating tank body is fixed on the inner side wall of the flotation tank body below the overflow weir, one end of the circulating tank body is provided with an ore pulp inlet, the other end of the circulating tank body is provided with an ore pulp outlet, the ore pulp inlet is correspondingly arranged below the overflow weir, and the ore pulp outlet is connected with one of the pulp inlets;
the stirring component is arranged as a stirring rotor and comprises a disc-shaped rotor bottom plate and a plurality of rotor blades, the rotor blades are radially and annularly arranged on the rotor bottom plate, and the rotor bottom plate is fixedly arranged at the bottom of the stirring rod; the impeller diameter to groove width ratio of the stirring rotor is set to be 0.34-0.42;
the bottom of the sleeve is provided with a stirring stator matched with the stirring rotor, the stirring stator comprises a disc-shaped stator bottom plate and a plurality of stator blades, the stator blades are uniformly distributed on the stator bottom plate in a ring shape, each stator blade deflects clockwise or anticlockwise by α degrees, the α degree is set to be 20-40 degrees, and a stator reserved hole for ore pulp flowing is arranged in the center of the stator bottom plate;
an air inlet channel is arranged above the slurry inlet and is communicated with the annular chamber;
the circulation cell body is including the fan-shaped dressing trough of inhaling that is linked together and inhaling the thick liquid pipe, and fan-shaped dressing trough of inhaling and flotation cell body lateral wall fixed connection, the ore pulp entry sets up at fan-shaped dressing trough top of inhaling, the ore pulp export sets up and is inhaling thick liquid pipe one end.
2. A flotation machine for the flotation of coarse fraction material according to claim 1, characterized in that: the bottom of the flotation tank body is provided with a material stabilizing and flow blocking component which comprises a plurality of shaping plates and a plurality of connecting rods, wherein the shaping plates are vertically arranged on the connecting rods at intervals to form an integrated material stabilizing and flow blocking component.
3. A flotation machine for the flotation of coarse fraction material according to claim 2, characterized in that: the number of the connecting rods is 5, and the connecting rods are respectively arranged at four corners and the center of the template; the distance between two adjacent type plates is set to be 200-400 mm; the height of the material stabilizing and flow blocking member is set to be 150-500 mm.
4. A flotation machine for the flotation of coarse fraction material according to claim 1, characterized in that: a steady flow grating component is transversely installed in the flotation tank body and comprises a plurality of grating plate bodies arranged at intervals, a gap is reserved between every two adjacent grating plate bodies, and the grating plate bodies are connected together through a plurality of connecting plates to form an integrated steady flow grating component; the gap between two adjacent grating plate bodies is 20-60 mm; the total depth of the flotation tank body is set to be H, and the distance from the steady flow grid plate to the bottom of the flotation tank body is 0.34H-0.45H.
5. A flotation machine for the flotation of coarse fraction material according to claim 1, characterized in that: an emptying device is arranged in the flotation tank body and comprises a valve arranged at the bottom of the flotation tank body, and a lifting rod used for closing the valve is arranged above the valve.
6. A flotation machine for the flotation of coarse fraction material according to claim 1, characterized in that: the stirring rod is arranged as a rod body with adjustable length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710109279.0A CN106824554B (en) | 2017-02-27 | 2017-02-27 | Flotation machine for flotation of coarse fraction materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710109279.0A CN106824554B (en) | 2017-02-27 | 2017-02-27 | Flotation machine for flotation of coarse fraction materials |
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| CN106824554A CN106824554A (en) | 2017-06-13 |
| CN106824554B true CN106824554B (en) | 2020-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710109279.0A Active CN106824554B (en) | 2017-02-27 | 2017-02-27 | Flotation machine for flotation of coarse fraction materials |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108927295A (en) * | 2018-09-12 | 2018-12-04 | 武汉工程大学 | A kind of single shaft single impeller mechanical stirring self suction type floatation equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3882016A (en) * | 1974-01-02 | 1975-05-06 | Charles A Green | Flotation machine and impeller therefor |
| CN87103290A (en) * | 1987-05-06 | 1988-11-23 | 北京矿冶研究总院 | Flotation machine for ore dressing |
| CN201140114Y (en) * | 2007-07-12 | 2008-10-29 | 北京矿冶研究总院 | Flotation machine |
| CN201711220U (en) * | 2010-07-09 | 2011-01-19 | 太原市兴慎工贸有限公司 | Mechanical stirring type flotation machine |
| CN202893515U (en) * | 2012-11-16 | 2013-04-24 | 安徽理工大学 | Mechanical agitation air suction mixed flotation machine |
| CN203635337U (en) * | 2014-02-21 | 2014-06-11 | 黄石大江集团有限公司 | Steady flow plate for flotation machine |
| CN205949074U (en) * | 2016-08-01 | 2017-02-15 | 中国矿业大学 | Laboratory flotation cell of froth pulp is collected at both ends |
-
2017
- 2017-02-27 CN CN201710109279.0A patent/CN106824554B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3882016A (en) * | 1974-01-02 | 1975-05-06 | Charles A Green | Flotation machine and impeller therefor |
| CN87103290A (en) * | 1987-05-06 | 1988-11-23 | 北京矿冶研究总院 | Flotation machine for ore dressing |
| CN201140114Y (en) * | 2007-07-12 | 2008-10-29 | 北京矿冶研究总院 | Flotation machine |
| CN201711220U (en) * | 2010-07-09 | 2011-01-19 | 太原市兴慎工贸有限公司 | Mechanical stirring type flotation machine |
| CN202893515U (en) * | 2012-11-16 | 2013-04-24 | 安徽理工大学 | Mechanical agitation air suction mixed flotation machine |
| CN203635337U (en) * | 2014-02-21 | 2014-06-11 | 黄石大江集团有限公司 | Steady flow plate for flotation machine |
| CN205949074U (en) * | 2016-08-01 | 2017-02-15 | 中国矿业大学 | Laboratory flotation cell of froth pulp is collected at both ends |
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| CN106824554A (en) | 2017-06-13 |
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