CN106694237B - Jet air suction stirring flotation machine - Google Patents
Jet air suction stirring flotation machine Download PDFInfo
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- CN106694237B CN106694237B CN201611169827.0A CN201611169827A CN106694237B CN 106694237 B CN106694237 B CN 106694237B CN 201611169827 A CN201611169827 A CN 201611169827A CN 106694237 B CN106694237 B CN 106694237B
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- guide plate
- flotation
- circulating
- 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
- B03D1/24—Pneumatic
-
- 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
- B03D1/24—Pneumatic
- B03D1/242—Nozzles for injecting gas into the flotation tank
Abstract
The invention belongs to the technical field of mineral separation, and particularly relates to a jet suction stirring flotation machine. The static flow guide plate guides the submerged jet feeding material for three times, and the pulp, the medicament and the bubbles are fully mixed in a wider interval in the tank along with mat rolling and stirring of the pulp in the tank. Meanwhile, the static guide plate can realize the control of the ore pulp mixed circulation area through the induction in the ore pulp flow direction, so that the ore pulp mixed circulation area is prevented from interfering the transportation area and the foam layer of mineralized bubbles, a good flotation environment is formed, the guide plate performs multiple cutting and impact crushing on large bubbles in the ore pulp, bubbles with smaller particle sizes are formed, and the guide plate is fully and uniformly distributed in each interval in the tank along the guide plate, so that the full mineralization is realized.
Description
Technical Field
The invention belongs to the technical field of mineral separation, and particularly relates to a jet suction stirring flotation machine.
Background
Common flotation machines are mainly divided into mechanical flotation machines and jet flotation machines, and as no stirring device is arranged in the common jet flotation machines, when the concentration of ore pulp is high, sufficient power cannot be provided to achieve sufficient mixing and dispersion of the ore pulp, bubbles and flotation reagents; the high rotating speed of the stirring device of the mechanical stirring type flotation machine requires higher energy consumption, the rotating speed is low, and good flow field and air suction quantity cannot be formed, and the novel spraying air suction stirring mechanism has the advantages that the spraying flow is close to the plume because the ore pulp in the spraying section submerges the spraying flow, most of the spraying energy is consumed by the ore pulp, so the spraying efficiency is greatly reduced, the stirring efficiency is greatly reduced, and the stirring flow field is disturbed.
Disclosure of Invention
The invention aims to provide a jet suction stirring flotation machine. The static guide plate is arranged to control the ore pulp circulation area, so that ore pulps with different concentrations can be fully mixed uniformly under the guide effect of the guide plate, sufficient air suction amount is provided, energy consumption is reduced, and flotation efficiency is improved.
In order to achieve the purpose, the invention adopts the following technical scheme: a jet suction stirring flotation machine comprises a suction mixing mechanism, a flotation tank, a first bracket and a pulp conveying area;
the air suction mixing mechanism comprises a feeding area and a stirring and mixing area.
The feeding area is positioned on the upper side of the first bracket and consists of a mixing bin, a circulating feeding port and an air suction pipe; the mixing bin is arranged at the upper end of the first support and used for containing flotation circulating ore pulp, the circulating feeding port is arranged above the mixing bin, and the feeding pipe is arranged at the lower end of the mixing bin and communicated with the mixing bin;
the stirring and mixing area comprises a feeding pipe, an air suction pipe, an annular jet flow nozzle, a static flow guide plate, a second bracket and a third bracket; the static flow guide plate consists of a first flow guide plate, a second flow guide plate and a circulating flow guide plate, the upper end of the air suction pipe is communicated with the atmosphere, the lower end of the air suction pipe is connected with the annular jet flow nozzle, the upper end of the feeding pipe is communicated with the bottom of the mixing bin, and the lower end of the feeding pipe is connected with the annular jet flow nozzle and is nested in the air suction pipe; the annular jet flow nozzles are arranged in a plurality and are uniformly fixed on the outer wall of the feeding pipe and communicated with the feeding pipe; the first guide plates are in an arc shape, are arranged into four pieces and are mutually and uniformly fixed on the outer wall of the feeding pipe at 90 degrees; the second guide plates are in an arc shape and are arranged into four pieces which are mutually 90 degrees and are uniformly fixed on the false bottom by the second support, the tail ends of the second guide plates are opposite to the tail ends of the first guide plates, and the horizontal height of the second guide plates is higher than that of the first guide plates; the circulating guide plates are in a hemispherical shape, are also arranged into four pieces, are mutually 90 degrees and are uniformly fixed on the false bottom by a third support, are opposite to the tail end of the second guide plate, are staggered by a certain angle, and have higher horizontal height than the second guide plate; the heights of the first guide plate, the second guide plate and the circulating guide plate are all lower than that of the first support. The circulating discharge hole is arranged at the bottom of the flotation tank and is positioned below the false bottom; and the area between the outer side of the circulating guide plate and the inner wall of the flotation tank is a concentrate secondary enrichment area.
A scraping plate, a feeding port and a discharging port are respectively arranged on the tank body of the flotation tank; the upper side of the flotation tank is provided with a first support, and the scraper is arranged on the first support and located on the upper side of the concentrate secondary enrichment area.
The invention discloses a jet suction stirring flotation machine, which has the beneficial effects that:
1. the jet suction stirring flotation machine adopts the static guide plate to replace a stirring impeller of a mechanical stirring flotation machine, so that the friction energy loss between the impeller and a shaft and the internal energy loss caused by stirring ore pulp by the impeller are reduced, and the flotation energy loss is reduced.
2. The static flow guide plate adopted by the invention guides the submerged jet flow feeding in three times, and along with the mat rolling and stirring of the ore pulp in the tank, the ore pulp, the medicament and the bubbles are fully mixed in a wider interval in the tank, so that a dead angle area of flotation is avoided.
3. The static guide plate adopted by the invention can realize the control of the ore pulp mixing and circulating area through the induction in the ore pulp flow direction, thereby preventing the ore pulp mixing and circulating area from interfering the transport area of mineralized bubbles and the foam layer and forming a good flotation environment.
4. The static guide plate adopted by the invention can cut and impact and crush the large bubbles in the ore pulp for many times to form bubbles with smaller particle size, and the bubbles are fully and uniformly distributed in each interval in the tank along the guide plate, so that the full mineralization is realized, and the flotation is facilitated.
Drawings
Fig. 1 is a front view of the structure of the present invention.
Fig. 2 is a schematic top view of the structure of the present invention.
The reference numerals in the figures have the following meanings:
1-air suction mixing mechanism 2-flotation tank 3-concentrate secondary enrichment area 4-first support 5-ore pulp transportation area 6-feeding area 7-stirring mixing area 8-mixing bin 9-circulating feeding port 10-feeding pipe 11-air suction pipe 12-annular jet spray head 13-static flow guide plate 14-second support 15-third support 16-first flow guide plate 17-second flow guide plate 18-circulating flow guide plate 19-false bottom 20-circulating discharge port 21-scraper 22-feeding port 23-discharge port 24-ore pulp flow trajectory line
Detailed Description
As shown in the figure, in order to achieve the purpose, the invention adopts the following technical scheme:
a jet suction stirring flotation machine comprises a suction mixing mechanism (1), a flotation tank (2), a first bracket (4) and a pulp conveying area (5);
the air suction mixing mechanism (1) comprises a feeding area (6) and a stirring and mixing area (7).
The feeding area (6) is positioned on the upper side of the first support (4) and consists of a mixing bin (8), a circulating feeding port (9) and an air suction pipe (10); the mixing bin (8) is arranged at the upper end of the first support (4) and used for containing flotation circulating ore pulp, the circulating feeding port (9) is arranged above the mixing bin (8), and the feeding pipe (10) is arranged at the lower end of the mixing bin (8) and communicated with the mixing bin (8);
the stirring and mixing area (7) comprises a feeding pipe (10), an air suction pipe (11), an annular jet flow nozzle (12), a static flow guide plate (13), a second support (14) and a third support (15); the static flow guide plate (13) consists of a first flow guide plate (16), a second flow guide plate (17) and a circulating flow guide plate (18), the upper end of the air suction pipe (11) is communicated with the atmosphere, the lower end of the air suction pipe is communicated with the annular jet flow nozzle (12), the upper end of the feeding pipe (10) is communicated with the bottom of the mixing bin (8), and the lower end of the feeding pipe is connected with the annular jet flow nozzle (12) and is nested in the air suction pipe (11); the annular jet flow nozzles (12) are arranged in a plurality and are uniformly fixed on the outer wall of the feeding pipe (10) and communicated with the feeding pipe (10); the first guide plates (16) are in an arc shape, are arranged into four pieces and are mutually and uniformly fixed on the outer wall of the feeding pipe (10) at 90 degrees; the second guide plates (17) are in an arc shape, are arranged into four pieces, are mutually 90 degrees and are uniformly fixed on the false bottom (19) through the second support (14), the tail ends of the second guide plates (17) are opposite to the tail ends of the first guide plates (16), and the horizontal height of the second guide plates is higher than that of the first guide plates (16); the circulating guide plates (18) are hemispherical, are also arranged into four pieces, are mutually and uniformly fixed on the false bottom (19) at 90 degrees by a third bracket (15), are opposite to the tail end of the second guide plate (17), are staggered by a certain angle, and are higher than the second guide plate (17) in horizontal height; the first guide plate (16), the second guide plate (17) and the circulating guide plate (18) are all lower than the first bracket (4). The circular discharge hole (20) is arranged at the bottom of the flotation tank and is positioned below the false bottom; and the area between the outer side of the circulating guide plate (18) and the inner wall of the flotation tank (2) is a concentrate secondary enrichment area (3).
A scraping plate (21), a feeding port (22) and a discharging port (23) are respectively arranged on the body of the flotation tank (2); the upside of flotation cell (2) is provided with first support (4), scraper blade (21) set up on first support (9), are located concentrate secondary enrichment district upside (3).
The working process of the present invention is further explained below with reference to fig. 1-2:
ore pulp enters a flotation tank (2) from an ore pulp feeding port (22) to participate in flotation, bottom circulation ore pulp of the flotation tank (2) is pumped out from a bottom circulation discharge port (20) through an underflow pump, pressure injection enters a mixing bin (8), the mixed ore pulp is sprayed out through an annular jet nozzle (12), a large amount of gas is sucked in the annular jet nozzle (12) through an air suction pipe (11), a first guide plate (16) is impacted by the ore pulp sprayed out of the annular jet nozzle (12), the ore pulp moves along the first guide plate (16), and the flow is guided to the other edge from one edge of the first guide plate (16). The flotation mineralized foam is discharged from the edge of the first guide plate (16) and then impacts the second guide plate (17), and the flotation mineralized foam moves along the second guide plate (17) and is guided from one edge of the second guide plate (17) to the other edge. The flotation mineralization foam is discharged from the outer edge of the second guide plate (17) and then impacts the circulating guide plate (18), the flotation mineralization foam moves along the circulating guide plate (18) and is guided to the other edge from one edge of the circulating guide plate (18), so that the ore pulp is dispersed in each area of the bottom of the tank, meanwhile, the ore pulp rises to the upper end of the circulating guide plate from the lower end of the circulating guide plate (18) along the arc-shaped edge, and the ejected ore pulp forms a circulating loop. The flotation mineralization foams are thrown out from the outer edge of the circulating guide plate (18), then float upwards to the liquid level above an ore pulp transportation area (5) of the flotation tank, are fully accumulated at the upper part of the ore pulp transportation area (5), are scraped out of the flotation tank (2) by a scraper (21), the mineralization foams which are not scraped are downwards deposited to a concentrate secondary enrichment area (3), the mineralization foams which sink in the concentrate secondary enrichment areas (3) at two sides sink to the lower ends of a second bracket (14) and a third bracket (15), and respectively cross over the second bracket (14) and a false bottom (19) to the flotation area, so as to realize secondary flotation; the ore pulp settled to the bottom of the flotation tank (2) enters the next flotation tank (2) through the discharge port (23) for secondary flotation.
Claims (2)
1. A jet suction stirring flotation machine is characterized in that: the device comprises an air suction mixing mechanism, a flotation tank, a first bracket and an ore pulp conveying area; the air suction mixing mechanism comprises a feeding area and a stirring and mixing area; the feeding area is positioned on the upper side of the first support and consists of a mixing bin, a circulating feeding port and an air suction pipe; the mixing bin is arranged at the upper end of the first support and used for containing flotation circulating ore pulp, the circulating feeding port is arranged above the mixing bin, and the feeding pipe is arranged at the lower end of the mixing bin and communicated with the mixing bin; the stirring and mixing area comprises a feeding pipe, an air suction pipe, an annular jet flow nozzle, a static flow guide plate, a second bracket and a third bracket;
the static flow guide plate consists of a first flow guide plate, a second flow guide plate and a circulating flow guide plate, the upper end of the air suction pipe is communicated with the atmosphere, the lower end of the air suction pipe is connected with the annular jet flow nozzle, the upper end of the feeding pipe is communicated with the bottom of the mixing bin, and the lower end of the feeding pipe is connected with the annular jet flow nozzle and is nested in the air suction pipe; the annular jet flow nozzles are uniformly fixed on the outer wall of the feeding pipe and are communicated with the feeding pipe; the first guide plates are in an arc shape and are arranged into four pieces which are mutually and uniformly fixed on the outer wall of the feeding pipe at 90 degrees; the second guide plates are in an arc shape and are arranged into four pieces which are mutually 90 degrees and are uniformly fixed on the false bottom by the second support, the tail ends of the second guide plates are opposite to the tail ends of the first guide plates, and the horizontal height of the second guide plates is higher than that of the first guide plates; the circulating guide plates are in a hemispherical shape, are also arranged into four pieces, are mutually and uniformly fixed on the false bottom by a third bracket at 90 degrees, are opposite to the tail end of the second guide plate, and have higher horizontal height than the second guide plate; the heights of the first guide plate, the second guide plate and the circulating guide plate are all lower than that of the first support; the circulating discharge hole is arranged at the bottom of the flotation tank and is positioned below the false bottom; the area between the outer side of the circulating guide plate and the inner wall of the flotation tank is a concentrate secondary enrichment area;
the ore pulp enters the flotation tank from the ore pulp feeding port to participate in flotation, the circulating ore pulp at the bottom of the flotation tank is pumped out from the bottom circulating discharge port through the underflow pump and is injected into the mixing bin under pressure, the mixed ore pulp is injected through the annular jet flow nozzle, a large amount of gas is sucked in the annular jet flow nozzle through the air suction pipe, the ore pulp injected by the annular jet flow nozzle impacts the first guide plate, the ore pulp moves along the first guide plate and is guided to the other edge from one edge of the first guide plate; the flotation mineralized foam is discharged from the edge of the first guide plate and then impacts the second guide plate, and the flotation mineralized foam moves along the second guide plate and is guided from one edge of the second guide plate to the other edge; the flotation mineralization foam is discharged from the outer edge of the second guide plate and then impacts the circulating guide plate, the flotation mineralization foam moves along the circulating guide plate and is guided to the other edge from one edge of the circulating guide plate, so that the ore pulp is dispersed in each area of the bottom of the tank, meanwhile, the ore pulp rises to the upper end of the circulating guide plate from the lower end of the circulating guide plate along the arc-shaped edge, and the ejected ore pulp forms a circulating loop; the flotation mineralization foam is thrown out from the outer edge of the circulating guide plate and then floats upwards to the liquid level above an ore pulp transportation area of the flotation tank, is fully accumulated at the upper part of the ore pulp transportation area and is scraped out of the flotation tank by a scraper, the mineralization foam which is not scraped is downwards deposited to a concentrate secondary enrichment area, the mineralization foam which sinks in the concentrate secondary enrichment areas at two sides sinks to the lower ends of a second bracket and a third bracket and respectively passes through the second bracket and a false bottom to the flotation area so as to realize secondary flotation; and the ore pulp settled to the bottom of the flotation tank enters the next flotation tank through the discharge port for secondary flotation.
2. The jet suction agitation flotation machine according to claim 1, wherein: a scraping plate, a feeding port and a discharging port are respectively arranged on the tank body of the flotation tank; the upper side of the flotation tank is provided with a first support, and the scraper is arranged on the first support and located on the upper side of the concentrate secondary enrichment area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611169827.0A CN106694237B (en) | 2016-12-16 | 2016-12-16 | Jet air suction stirring flotation machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611169827.0A CN106694237B (en) | 2016-12-16 | 2016-12-16 | Jet air suction stirring flotation machine |
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| Publication Number | Publication Date |
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| CN106694237A CN106694237A (en) | 2017-05-24 |
| CN106694237B true CN106694237B (en) | 2022-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611169827.0A Active CN106694237B (en) | 2016-12-16 | 2016-12-16 | Jet air suction stirring flotation machine |
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| CN (1) | CN106694237B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110614168B (en) * | 2019-09-26 | 2020-07-28 | 中国矿业大学 | Stirring type flotation machine with jet impeller |
| CN113210141B (en) * | 2021-04-15 | 2024-01-09 | 江苏仕能工业技术有限公司 | Mineral flotation machine of high efficiency flotation |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6308834B1 (en) * | 1995-08-17 | 2001-10-30 | Svedala Limited | Flotation tank impeller |
| CN201088935Y (en) * | 2007-09-21 | 2008-07-23 | 喻炳高 | Refining floatation machine |
| CN203990934U (en) * | 2014-06-25 | 2014-12-10 | 安徽理工大学 | The air-breathing agitator of a kind of injection |
| CN204564358U (en) * | 2015-03-25 | 2015-08-19 | 安徽理工大学 | A kind of injection stream is impacted vane rotary and is stirred self-induced aeration floatation |
| CN105642451A (en) * | 2016-03-18 | 2016-06-08 | 安徽理工大学 | Reaction type annular jetting air sucking stirring type floatation machine with rectifying device |
| CN205462756U (en) * | 2016-03-18 | 2016-08-17 | 安徽理工大学 | Counterattack formula annular space sprays stirring formula flotation device of breathing in |
| CN206286065U (en) * | 2016-12-16 | 2017-06-30 | 安徽理工大学 | A kind of novel injection air-breathing agitated flotation cell |
-
2016
- 2016-12-16 CN CN201611169827.0A patent/CN106694237B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6308834B1 (en) * | 1995-08-17 | 2001-10-30 | Svedala Limited | Flotation tank impeller |
| CN201088935Y (en) * | 2007-09-21 | 2008-07-23 | 喻炳高 | Refining floatation machine |
| CN203990934U (en) * | 2014-06-25 | 2014-12-10 | 安徽理工大学 | The air-breathing agitator of a kind of injection |
| CN204564358U (en) * | 2015-03-25 | 2015-08-19 | 安徽理工大学 | A kind of injection stream is impacted vane rotary and is stirred self-induced aeration floatation |
| CN105642451A (en) * | 2016-03-18 | 2016-06-08 | 安徽理工大学 | Reaction type annular jetting air sucking stirring type floatation machine with rectifying device |
| CN205462756U (en) * | 2016-03-18 | 2016-08-17 | 安徽理工大学 | Counterattack formula annular space sprays stirring formula flotation device of breathing in |
| CN206286065U (en) * | 2016-12-16 | 2017-06-30 | 安徽理工大学 | A kind of novel injection air-breathing agitated flotation cell |
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| CN106694237A (en) | 2017-05-24 |
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