CN211756020U - Circulation volume automatic compensation pan feeding volume fluctuation's cavitation jet microbubble flotation column - Google Patents
Circulation volume automatic compensation pan feeding volume fluctuation's cavitation jet microbubble flotation column Download PDFInfo
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- CN211756020U CN211756020U CN201922210910.3U CN201922210910U CN211756020U CN 211756020 U CN211756020 U CN 211756020U CN 201922210910 U CN201922210910 U CN 201922210910U CN 211756020 U CN211756020 U CN 211756020U
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Abstract
The utility model belongs to the technical field of coal slime flotation devices, and discloses a cavitation jet microbubble flotation column with circulation volume automatically compensating fluctuation of feeding volume, which comprises a feeding aeration tank, an upper tank body and a lower tank body, wherein a baffle is arranged in the feeding aeration tank, a plurality of ore pulp distribution ports and a plurality of gas distribution ports are arranged on the side wall and are respectively positioned above and below the baffle, and a plurality of bubble generators are connected with the feeding aeration tank through the ore pulp distribution ports and the gas distribution ports; an inner barrel is arranged in the lower barrel body, and an outlet below the bubble generator is arranged in the inner barrel; a foam reflection disc is arranged in the inner barrel, an inverted cone-shaped funnel is arranged below the foam reflection disc, an internal circulation port communicated with the bottom of the inner barrel is arranged at the bottom of the inverted cone-shaped funnel, a fresh ore pulp inlet and a discharge port communicated with the feeding box are further arranged on the inner barrel, and the discharge port is connected with a feeding port on the feeding inflation tank through a pressure pump. The utility model provides high separation effect and stability.
Description
Technical Field
The utility model belongs to the technical field of coal slime flotation device, specifically be a fluctuating cavitation jet microbubble flotation column of circulation volume automatic compensation pan feeding volume.
Background
The stable stability of bubble generator operating mode has key effect to the stability of microbubble flotation device (post) separation effect, because the fluctuation of flotation pan feeding volume is a normality among the industrial system, in order to restrain the influence of pan feeding volume fluctuation to microbubble flotation device (post) work, circulation flow and the interior liquid level of charging bucket form the shutting control relation usually, adopt the mode of adjustment circulation volume to stabilize the interior liquid level of charging bucket, and then stabilize the operating mode of charging pump and microbubble flotation device. The ore pulp circulation of the micro-bubble flotation machine (column) generally adopts an extracorporeal circulation mode, a feed barrel is usually arranged in front of the micro-bubble flotation machine (column), the flow of circulating materials of the micro-bubble flotation machine (column) is controlled by a valve to enter the feed barrel, fresh flotation feed materials and the circulating materials are pressurized by a pump to be fed into a bubble generator system of the micro-bubble flotation machine (column), when the circulating amount is controlled for a certain time, the fluctuation of the fresh feed materials can cause the fluctuation of the liquid level in the feed barrel, so that the fluctuation of the inlet pressure and the outlet pressure of the pump is caused, the working condition of the bubble generator fluctuates due to the fluctuation of the feed pressure, and the fluctuation of the operation working condition and the separation effect of the flotation micro-bubble machine (column) is caused. Because the charging bucket and the micro-bubble flotation machine (column) are two mutually independent devices, when the charging quantity fluctuates greatly, a larger circulation flow is needed to complement the charging quantity to stabilize the working condition of the charging pump, so that the liquid level of the micro-bubble flotation machine (column) can be greatly reduced when the micro-bubble flotation machine (column) is discharged by the larger circulation flow, and the micro-bubble flotation machine (column) can not normally work under the working condition and the separation effect of the micro-bubble flotation machine (column) in serious conditions. Therefore, the seeking of a mechanism and an equipment structure which can balance the shortage of the feed quantity through the circulation quantity and do not influence the normal work of the micro-bubble flotation machine has very important significance for stabilizing and improving the working condition and the separation effect of the micro-bubble flotation machine (column).
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem that the circulating flow of the existing micro-bubble flotation machine (column) can not effectively balance the fluctuation of the feeding quantity and influence the working effect of the micro-bubble flotation machine (column), the utility model provides a method for automatically compensating the fluctuation of the feeding quantity by the circulating flow and a cavitation jet flow micro-bubble flotation column with an equipment structure.
In order to solve the technical problem, the utility model discloses a technical scheme be: a cavitation jet flow microbubble flotation column with circulation volume capable of automatically compensating fluctuation of a feeding volume comprises a feeding inflation tank, an upper tank body and a lower tank body, wherein a partition plate is arranged in the feeding inflation tank, a plurality of ore pulp distribution ports and a plurality of gas distribution ports are respectively arranged on the side wall of the feeding inflation tank and are positioned above and below the partition plate, and a plurality of bubble generators are connected with the feeding inflation tank through the ore pulp distribution ports and the gas distribution ports; a concentrate collecting tank is arranged on the periphery of the upper barrel body, an inner barrel is arranged in the lower barrel body, and an outlet below the bubble generator is arranged in the inner barrel; the inner barrel is internally provided with a foam reflection disc, an inverted cone-shaped funnel is arranged below the foam reflection disc, the bottom of the inverted cone-shaped funnel is provided with an internal circulation port communicated with the bottom of the inner barrel, a feeding box is formed between the inverted cone-shaped funnel and the bottom of the inner barrel, the inner barrel is also provided with a fresh ore pulp inlet and a fresh ore pulp outlet which are communicated with the feeding box, and the fresh ore pulp outlet is connected with a feeding port on a feeding inflation tank through a pressure pump.
The cavitation jet flow microbubble flotation column with the circulation volume capable of automatically compensating fluctuation of the feeding volume further comprises a bubble pushing cone arranged at the center of the upper barrel body.
A tailing discharge port is formed in one side of the bottom of the lower barrel body, and a tailing pipe and a tailing box are arranged on the tailing discharge port.
The back taper funnel is the cone plate of fixed setting on interior bucket lateral wall, the foam reflection dish is the cone plate, and it sets up in the cone funnel top through many support columns are fixed to there is the clearance between its edge and the cone funnel.
The feeding inflation tank is also provided with a central air supply pipe located below the partition plate, the central air supply pipe is provided with an air valve, and the central air supply pipe is used for being connected with an air source to supply air to the feeding inflation tank.
The bubble generator comprises a feeding pipe, one end of the feeding pipe is connected with the ore pulp distribution port through an ore pulp pipe, the other end of the feeding pipe is connected with a nozzle, an outlet of the nozzle is connected with an inlet of a throat pipe assembly, the outlet of the nozzle and the inlet of the throat pipe assembly are both arranged in the first expansion pipe, and an air suction port located between the nozzle and the throat pipe assembly is arranged on the first expansion pipe; the air suction port is connected with the air distribution port through an air suction pipe; the other end of the first enlarged pipe is connected with one end of the second enlarged pipe, and the other end of the second enlarged pipe is provided with a horn-shaped extension pipe.
Compared with the prior art, the utility model following beneficial effect has: the utility model discloses a staving bottom sets up the back taper funnel under, collects the mineral aggregate through the internal circulation mouth of back taper funnel bottom, and the mineral aggregate that will collect and fresh mineral aggregate pour into the pan feeding mouth together, carry out the automatic compensation pan feeding, realized that microbubble flotation device (post) under the undulant operating mode of pan feeding volume stabilize normal work, improved separation effect and stability.
Drawings
Fig. 1 is a schematic structural view of a cavitation jet microbubble flotation column with circulation volume automatically compensating fluctuation of a feeding volume provided by an embodiment of the present invention;
FIG. 2 is a schematic diagram of the structure of the embodiment of the present invention for automatically compensating the material feeding amount by the circulation amount;
FIG. 3 is a schematic structural view of an intensive feeding aeration tank according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a bubble generator according to an embodiment of the present invention;
in the figure: 1-upper barrel body, 2-lower barrel body, 3-concentrate collecting tank, 4-operation platform, 5-feeding aeration tank, 6-bubble generator, 7-feeding valve, 8-air suction pipe, 9-slurry pipe, 10-tailing pipe, 11-tailing tank, 12-fresh slurry inlet, 13-discharge port, 14-partition plate, 15-bottom plate, 16-feeding port, 17-slurry distributing port, 18-gas distributing port, 19-centralized air supply pipe, 20-air valve, 21-vacuum meter, 23-inner barrel, 24-foam reflecting disc, 25-inverted cone funnel, 26-internal circulating port, 28-bubble pushing cone, 29-tailing discharge port, 30-supporting column, 31-feeding pipe and 32-nozzle, 33-nozzle holder, 34-clip, 35-throat assembly, 36-suction inlet, 37-first enlarged tube, 38-second enlarged tube, 39-extension tube.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in FIGS. 1-3, the embodiment of the utility model provides a fluctuating cavitation jet microbubble flotation column of circulation volume automatic compensation pan feeding volume, including pan feeding aeration tank 5, upper barrel body 1 and lower barrel body 2, upper barrel body 1 top is provided with operation platform 4, and pan feeding aeration tank 5 passes through bottom plate 15 and sets up on operation platform 4. A partition plate 14 is arranged in the feeding aeration tank 5, a plurality of ore pulp distribution openings 17 and a plurality of gas distribution openings 18 are arranged on the side wall of the feeding aeration tank and are respectively positioned above and below the partition plate 14, and a plurality of bubble generators 6 are connected with the feeding aeration tank 5 through the ore pulp distribution openings 17 and the gas distribution openings 18; a concentrate collecting tank 3 is arranged on the periphery of the upper barrel body 1, an inner barrel 23 is arranged in the lower barrel body 2, and an outlet below the bubble generator 6 is arranged in the inner barrel 23; a foam reflection disc 24 is arranged in the inner barrel 23, an inverted cone-shaped funnel 25 is arranged below the foam reflection disc 24, an internal circulation port 26 communicated with the bottom of the inner barrel 23 is arranged at the bottom of the inverted cone-shaped funnel 25, a feeding box is formed between the inverted cone-shaped funnel 25 and the bottom of the inner barrel 23, a fresh ore pulp inlet 12 and a discharging port 13 communicated with the feeding box are further arranged on the inner barrel 23, and the discharging port 13 is connected with a feeding port 16 on a feeding inflation tank 5 through a pressure pump.
Further, as shown in fig. 1, the present embodiment further includes a bubble pushing cone 28 disposed at a central position of the upper tub body 1. The bottom of pushing the bubble awl 28 is the back taper, and after the foam phase ore pulp of output got into interior bucket from a plurality of bubble generators 6, upwards flowed through the reflection of foam reflecting disc 24 formation, mineralized bubbles upward movement got into upper barrel body 1 under the buoyancy and formed the foam layer, through pushing the effect of bubble awl 28, spilled over upper barrel body 1 and goes up along getting into concentrate collecting vat 3 and become the concentrate product.
Further, as shown in fig. 2, a tailings discharge port 29 is arranged at one side of the bottom of the lower barrel body 2, and as shown in fig. 1, a tailings pipe 10 and a tailings box 11 are arranged on the tailings discharge port 29. The unmineralized ore slurry flows through the tailing discharge port 29 along the gap between the inner barrel 23 and the outer barrel 22, and the tailing pipe 10 and the tailing tank 11 are discharged as tailings to enter the next operation process.
Further, in this embodiment, the inverted cone-shaped funnel 25 is a conical plate fixedly disposed on the side wall of the inner barrel 23, and the foam reflection disc 24 is a conical plate fixedly disposed above the cone-shaped funnel 25 by a plurality of support pillars 30, and a gap exists between the edge of the conical plate and the cone-shaped funnel 25.
Further, in this embodiment, the feeding inflation tank 5 is further provided with a central air supply pipe 19 located below the partition plate 14, the central air supply pipe 19 is provided with an air valve 20, and the central air supply pipe 19 is used for connecting an air source to supply air to the feeding inflation tank 5.
Further, as shown in fig. 4, in the present embodiment, the bubble generator 6 includes a feeding pipe 31, one end of the feeding pipe 31 is connected to the slurry distribution port 17 through a slurry pipe 9, the other end is connected to a nozzle 32, an outlet of the nozzle 32 is connected to an inlet of a throat assembly 35, both the outlet of the nozzle 32 and the inlet of the throat assembly 35 are disposed in the first enlarged pipe 37, and the first enlarged pipe 37 is provided with a suction port 36 located between the nozzle 32 and the throat assembly 35; the air suction port 36 is connected with the air distribution port 18 through an air suction pipe 8, and the air suction pipe 8 is provided with a check valve; the other end of the first enlarged tube 37 is connected to one end of the second enlarged tube 38, and the other end of the second enlarged tube 38 is provided with a flared extension tube 39. In this embodiment, the nozzle 33 is an inverted cone, and the interior of the throat assembly 35 is a throat.
Further, in this embodiment, the expanding tube 39 has an expanding angle in the range of 0 to 10 degrees and a ratio of height to expanding outlet in the range of 1 to 10. In addition, in this embodiment, the bubble generator 6 further includes a clamp 34 and a nozzle holder 33, the nozzle holder 33 is clamped at the periphery of the nozzle 32, one end of the nozzle holder 33 is fixedly connected with one end of the throat pipe assembly 35 and one end of the first enlarged pipe 37 through bolts, and the other end of the nozzle holder 33 is fixedly connected with the feeding pipe 31 through the clamp 34.
The working process of the utility model is as follows: when the flotation charging tank works, flotation charging materials enter the charging tank 5 through the charging port 16 after being pressurized by a pump, the flotation charging materials are uniformly distributed to the bubble generators 6 through the ore pulp distribution port 17, the charging pipe 9 of each bubble generator 6 is provided with the charging valve 7, negative pressure is formed when pressure ore pulp flows through a nozzle and a throat pipe of each bubble generator, air is sucked through the air suction pipe 8, the joint of the air suction pipe 8 and the bubble generators 6 is provided with a check valve to prevent the ore pulp from returning to the air suction pipe when the feeding is stopped, and the other end of the air suction pipe 8 is connected with the gas distribution port 18 on the charging tank 5; the ore pulp is sucked into air after passing through the bubble generator 6 to form an air-solid-liquid three-phase flow, the air-solid-liquid three-phase ore pulp generates strong fluid mixing when passing through the throat component 35 at a high speed, the sucked air is dispersed into tiny bubbles, secondary injection is formed at the outlet of the throat component 35, particles and the bubbles generate strong collision mineralization in the first expanding pipe 37, the second expanding pipe 38 and the lower expanding pipe 39 of the bubble generator 6, hydrophobic coal particles are selectively attached to the bubbles to form a particle bubble attachment body, the flow outlet speed is reduced due to the arrangement of the lower expanding pipe 39, the fluid turbulence and the impact force entering the inner barrel 23 are reduced, the phenomenon that the particles fall off the bubbles due to excessive turbulence is avoided, and the recovery of coarse particles is facilitated; and the mineralized bubbles are sent to the upper part of a foam reflection disc 24 in the middle of the inner barrel 23 through an extension pipe of the bubble generator, foam phases are reflected by the foam reflection disc 24 to form an upward flow, the mineralized bubbles move upwards under the action of buoyancy force to enter the upper barrel body 1 to form a foam layer, overflow the upper edge of the upper barrel body 1 to enter the concentrate collecting tank 3 to become a concentrate product, and enter the next operation procedure through an outlet arranged at the bottom of the concentrate collecting tank 3. The unmineralized ore slurry flows through the tailing discharge port 29 along the gap between the inner barrel 23 and the outer barrel 22, and the tailing pipe 10 and the tailing tank 11 are discharged as tailings to enter the next operation process. Part of ore pulp without bubbles passes through a gap between the conical foam reflection disc 24 and the inner barrel 23, passes through a space between the inverted cone funnel 25 at the lower part and the conical foam reflection disc 24, enters a feeding box formed by the bottom of the inner barrel 23 and the inverted cone funnel 25 through an internal circulation port 26, a fresh ore pulp inlet 12 and a discharge port 13 are arranged on the feeding box, and the fresh ore pulp and the circulating ore pulp are output from the discharge port 13, pressurized by a pump and then enter an ore pulp feeding port 16 of a feeding aeration tank 5; because the flow of the discharge port 13 is equal to the sum of the flows of the fresh ore pulp inlet 12 and the internal circulation port 26, when the device works, the flow of the discharge port 13 is a set amount, the value of the flow is equal to the working flow of the pressurizing pump, when the flow of the fresh ore pulp inlet 12 is reduced, the flow of the internal circulation port 26 is automatically increased, and the shortage of the feeding amount is automatically compensated; when the flow of the fresh ore pulp inlet 12 is increased, the flow of the internal circulation port 26 is automatically reduced, so that the flow of the discharge port 13 meets the working flow requirement of the pump, the requirement of the bubble generator of the micro-bubble flotation machine on the working flow is ensured and stabilized, and the cavitation jet flow micro-bubble flotation column is ensured to have stable working condition.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (6)
1. The cavitation jet flow microbubble flotation column with the circulation volume capable of automatically compensating the fluctuation of the feeding volume is characterized by comprising a feeding aeration tank (5), an upper barrel body (1) and a lower barrel body (2), wherein a partition plate (14) is arranged in the feeding aeration tank (5), a plurality of ore pulp distribution ports (17) and a plurality of gas distribution ports (18) which are respectively positioned above and below the partition plate (14) are arranged on the side wall of the feeding aeration tank, and a plurality of bubble generators (6) are connected with the feeding aeration tank (5) through the ore pulp distribution ports (17) and the gas distribution ports (18); a concentrate collecting tank (3) is arranged on the periphery of the upper barrel body (1), an inner barrel (23) is arranged in the lower barrel body (2), and an outlet below the bubble generator (6) is arranged in the inner barrel (23); a foam reflection disc (24) is arranged in the inner barrel (23), an inverted cone-shaped funnel (25) is arranged below the foam reflection disc (24), an internal circulation port (26) communicated with the bottom of the inner barrel (23) is arranged at the bottom of the inverted cone-shaped funnel (25), a feeding box is formed between the inverted cone-shaped funnel (25) and the bottom of the inner barrel (23), a fresh ore pulp inlet (12) and a discharging port (13) which are communicated with the feeding box are also arranged on the inner barrel (23), and the discharging port (13) is connected with a feeding port (16) on a feeding aeration tank (5) through a pressure pump.
2. The cavitation jet microbubble flotation column with the circulation volume capable of automatically compensating the feed volume fluctuation according to the claim 1, characterized in that the cavitation jet microbubble flotation column further comprises a bubble pushing cone (28) arranged at the central position of the upper barrel body (1).
3. The cavitation jet microbubble flotation column with the circulation volume capable of automatically compensating the feed volume fluctuation according to the claim 1, characterized in that a tailing discharge port (29) is arranged on one side of the bottom of the lower barrel body (2), and a tailing pipe (10) and a tailing tank (11) are arranged on the tailing discharge port (29).
4. The cavitation jet microbubble flotation column with the circulation volume capable of automatically compensating the feed volume fluctuation as set forth in claim 1, characterized in that the inverted cone-shaped funnel (25) is a conical plate fixedly arranged on the side wall of the inner barrel (23), the foam reflection disc (24) is a conical plate fixedly arranged above the cone-shaped funnel (25) through a plurality of support columns (30), and a gap exists between the edge of the cone-shaped funnel (25).
5. The cavitation jet microbubble flotation column capable of automatically compensating the feed quantity fluctuation in the circulating quantity manner according to the claim 1, characterized in that the feed aeration tank (5) is further provided with a centralized air supply pipe (19) below the partition plate (14), the centralized air supply pipe (19) is provided with an air valve (20), and the centralized air supply pipe (19) is used for being connected with an air source to supply air to the feed aeration tank (5).
6. The cavitation jet microbubble flotation column with the circulation volume automatically compensating the feed volume fluctuation according to the claim 1, characterized in that the bubble generator (6) comprises a feed pipe (31), one end of the feed pipe (31) is connected with the slurry distribution port (17) through a slurry pipe (9), the other end is connected with a nozzle (32), the outlet of the nozzle (32) is connected with the inlet of a throat pipe assembly (35), the outlet of the nozzle (32) and the inlet of the throat pipe assembly (35) are both arranged in a first enlarged pipe (37), and a suction port (36) between the nozzle (32) and the throat pipe assembly (35) is arranged on the first enlarged pipe (37); the air suction port (36) is connected with the air distribution port (18) through an air suction pipe (8); the other end of the first enlarged pipe (37) is connected with one end of a second enlarged pipe (38), and the other end of the second enlarged pipe (38) is provided with a flared extension pipe (39).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922210910.3U CN211756020U (en) | 2019-12-11 | 2019-12-11 | Circulation volume automatic compensation pan feeding volume fluctuation's cavitation jet microbubble flotation column |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922210910.3U CN211756020U (en) | 2019-12-11 | 2019-12-11 | Circulation volume automatic compensation pan feeding volume fluctuation's cavitation jet microbubble flotation column |
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| CN211756020U true CN211756020U (en) | 2020-10-27 |
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| CN201922210910.3U Active CN211756020U (en) | 2019-12-11 | 2019-12-11 | Circulation volume automatic compensation pan feeding volume fluctuation's cavitation jet microbubble flotation column |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110876988A (en) * | 2019-12-11 | 2020-03-13 | 太原睿孚特选煤技术有限公司 | Circulation volume automatic compensation pan feeding volume fluctuation's cavitation jet microbubble flotation column |
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2019
- 2019-12-11 CN CN201922210910.3U patent/CN211756020U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110876988A (en) * | 2019-12-11 | 2020-03-13 | 太原睿孚特选煤技术有限公司 | Circulation volume automatic compensation pan feeding volume fluctuation's cavitation jet microbubble flotation column |
| CN110876988B (en) * | 2019-12-11 | 2024-06-18 | 太原睿孚特选煤技术有限公司 | Cavitation jet flow microbubble flotation column with circulation quantity capable of automatically compensating fluctuation of feeding quantity |
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