CN110732412A - cavitation jet flow microbubble flotation machine and cavitation jet flow bubble generator - Google Patents
cavitation jet flow microbubble flotation machine and cavitation jet flow bubble generator Download PDFInfo
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- CN110732412A CN110732412A CN201911031732.6A CN201911031732A CN110732412A CN 110732412 A CN110732412 A CN 110732412A CN 201911031732 A CN201911031732 A CN 201911031732A CN 110732412 A CN110732412 A CN 110732412A
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- 238000005188 flotation Methods 0.000 title claims abstract description 65
- 238000005273 aeration Methods 0.000 claims abstract description 28
- 239000012141 concentrate Substances 0.000 claims abstract description 17
- 238000005192 partition Methods 0.000 claims abstract description 13
- 239000006260 foam Substances 0.000 claims description 14
- 239000002002 slurry Substances 0.000 claims description 7
- 230000029058 respiratory gaseous exchange Effects 0.000 claims 1
- 239000003245 coal Substances 0.000 abstract description 5
- 230000033558 biomineral tissue development Effects 0.000 description 30
- 239000002245 particle Substances 0.000 description 21
- 238000000926 separation method Methods 0.000 description 13
- 239000012530 fluid Substances 0.000 description 9
- 239000010419 fine particle Substances 0.000 description 7
- 238000010907 mechanical stirring Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005507 spraying Methods 0.000 description 3
- 101150114468 TUB1 gene Proteins 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003250 coal slurry Substances 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000011859 microparticle Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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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
Abstract
The invention belongs to the technical field of coal slime flotation devices, and discloses cavitation jet microbubble flotation machines and cavitation jet bubble generators, which comprise an intensive feeding aeration tank, an upper tank body and a lower tank body, wherein a middle partition plate is arranged in the intensive feeding aeration tank, a plurality of ore pulp distribution ports and a plurality of air distribution ports are arranged on the side wall of the intensive feeding aeration tank and are respectively positioned above and below the middle partition plate, a plurality of bubble generators are connected with the intensive feeding aeration tank through the ore pulp distribution ports and the air distribution ports, an inner tank is arranged in the lower tank body, a rectifying grating is arranged on the upper surface of the inner tank, a discharge port below each bubble generator penetrates through the rectifying grating and is arranged in the inner tank, and a concentrate overflow tank is arranged on the periphery of the upper tank body.
Description
Technical Field
The invention belongs to the technical field of coal slime flotation devices, and particularly relates to cavitation jet microbubble flotation machines and cavitation jet bubble generators.
Background
The foam flotation is a general method for separating minerals from fine particle ore pulp, and the method utilizes a flotation machine of the foam flotation, and comprises a mechanical stirring flotation machine, a jet flotation machine and flotation columns, wherein the mechanical stirring flotation machine breaks bubbles to generate foam under the cutting action of a stirring impeller, the size of the foam is larger and is about 1-3 mm, the mineralization mode of particles and the bubbles is mainly collision mineralization, the collision mineralization efficiency of fine particles is low, and the selectivity is poor, the jet flotation machine sucks air by utilizing the principle that ore pulp jet generates negative pressure, and inflates the ore pulp to generate foam for flotation separation, because the negative pressure is generated during the ore pulp jet of the flotation machine, gas dissolved in the ore pulp is separated out in a micro-bubble mode while sucking the air, so that the fine particle flotation process is strengthened, the jet flotation machine is widely applied in the field of fine particle coal and mineral flotation, and is considered as a substitute technical device of the mechanical stirring flotation machine, and the representative of the jet flotation machine is a jet flotation machine disclosed by the invention patent 92229333.3 in China, and the jet flotation device replaces the traditional mechanical stirring flotation device, so that the fine particle flotation effect is improved.
Although the particle size of the generated bubbles is smaller than that of a mechanical stirring type flotation machine, the gas-liquid interface area which can be contacted by the particle bubbles is increased under the condition of fixed aeration quantity, and further the collision mineralization probability of the particle bubbles is increased in fixed degree, for fine ore particles, because the inertia of the ore particles is small, the collision mineralization efficiency is low, the fine ore particles are easily entrained in foam to cause pollution to the concentrate, and the grade of the flotation concentrate is reduced.
Unlike a mechanical stirring type flotation machine, a flotation column adopts a particle bubble reverse flow mineralization mode, generally adopts a plunger flow pattern, particle bubbles collide with a mineralization area, namely a collecting area, occupies a larger space of the flotation column, the collecting area has relatively higher fluid turbulence degree, but compared with the mechanical stirring flotation machine, the turbulence degree is much smaller, so that the particle bubble collision mineralization intensity is much lower, meanwhile, because a particle bubble union is subjected to turbulence degree interference determined by in the flotation column, bubble overload, too long migration path to a pulp interface and the like, the falling of coarse particles in the migration process is inevitable, which is probably the reason that the flotation column only shows definite advantage in terms of fine particle flotation.
From the above analysis of the flotation machine and flotation column sorting process we can conclude that: the flotation machine has the advantages of strong mineralization capability, poor separation environment of mineralized bubbles, low mineralization strength of the flotation column, good separation environment of mineralized bubbles, strengthened mineralization capability of the flotation column, and good separation environment of the flotation column, and can possibly improve the efficiency of the whole flotation column separation process.
Disclosure of Invention
In order to solve the problems that the existing flotation column has low mineralization strength and can not effectively overcome the defects of low mineralization efficiency caused by the collision of fine coal and mineral and the interference of a mineralization and collection area on the stability of a foam layer, the invention provides cavitation jet microbubble flotation machines and cavitation jet bubble generators, wherein the cavitation jet microbubble flotation machines relatively isolate a high-turbulence particle bubble mineralization area and a low-turbulence mineralization bubble separation area, and have the advantage of reducing the turbulence degree of particle bubble mineralization fluid in a gradient manner.
In order to solve the technical problems, the invention adopts the technical scheme that cavitation jet microbubble flotation machines and cavitation jet bubble generators comprise an intensive feeding aeration tank, an upper tank body and a lower tank body, wherein a middle partition plate is arranged in the intensive feeding aeration tank, a plurality of ore pulp distribution ports and a plurality of air distribution ports are arranged on the side wall of the intensive feeding aeration tank and are respectively positioned above and below the middle partition plate, the bubble generators are connected with the intensive feeding aeration tank through the ore pulp distribution ports and the air distribution ports, an inner tank is arranged in the lower tank body, a rectifying grating is arranged on the upper surface of the inner tank, a discharge port below the bubble generator penetrates through the rectifying grating and is arranged in the inner tank, and a concentrate overflow trough is arranged on the periphery of the upper tank body.
The bubble generator comprises a feeding pipe, wherein the end of the feeding pipe is connected with the ore pulp distribution port, the other end of the feeding pipe is connected with a nozzle, the outlet of the nozzle is connected with the inlet of a throat pipe assembly, the outlet of the nozzle and the inlet of the throat pipe assembly are both arranged in a th expansion pipe, an air suction port between the nozzle and the throat pipe assembly is arranged on the th expansion pipe, the air suction port is connected with the air distribution port through an air suction pipe, the other end of the th expansion pipe is connected with the end of a second expansion pipe, and the other end of the second expansion pipe is provided with a horn-shaped expansion pipe.
The expansion angle of the expansion pipe is in the range of 0-10 degrees, and the ratio of the height to the expansion outlet is in the range of 1-10.
Bubble generator still includes clamp and nozzle holder, the nozzle holder card is established in the nozzle periphery, the end of nozzle holder pass through the bolt with the end fixed connection of choke subassembly and enlarged tube, end in addition passes through clamp and pan feeding pipe fixed connection.
The intensive type feeding inflation tank is further provided with a concentrated air inlet pipe located below the intermediate baffle plate, the concentrated air inlet pipe is provided with an air valve , and the intensive type feeding inflation tank is further provided with a vacuum meter used for measuring the vacuum degree of the space below the intermediate baffle plate.
A foam reflecting disc is arranged in the inner barrel.
The bottom of the concentrate overflow groove is provided with a concentrate outlet pipe, the bottom of the lower barrel body is provided with a tailing concentration barrel, the bottom of the inner barrel body is provided with a circulating pipe, the tailing concentration barrel is connected with a tailing tank through a tailing pipe, the tailing pipe is provided with an accident emptying valve, and the tailing tank is provided with a tailing adjusting screw rod.
In addition, the invention also provides an cavitation jet bubble generator which comprises a feeding pipe, wherein the end of the feeding pipe is connected with the ore pulp distribution port, the other end is connected with a nozzle, the outlet of the nozzle is connected with the inlet of a throat pipe assembly, the outlet of the nozzle and the inlet of the throat pipe assembly are both arranged in the expansion pipe, the expansion pipe is provided with an air suction port positioned between the nozzle and the throat pipe assembly, the air suction port is connected with the air distribution port through an air suction pipe, the other end of the expansion pipe is connected with the end of the second expansion pipe, and the other end of the second expansion pipe is provided with a horn-shaped expansion pipe.
The expansion angle of the expansion pipe is in the range of 0-10 degrees, and the ratio of the height to the expansion outlet is in the range of 1-10.
cavitation jet bubble generator, still include clamp and nozzle holder, the nozzle holder card is established in the nozzle periphery, the end of nozzle holder pass through the bolt with the end fixed connection of choke subassembly and expansion pipe, end passes through clamp and pan feeding pipe fixed connection in addition.
The invention has the following beneficial effects that cavitation jet flow micro bubble flotation machines suitable for the flotation of fine particle coal and minerals, namely air jet flow bubble generators, are provided, the invention evenly distributes ore pulp above a feeding inflation pipe to a plurality of bubble generators, a nozzle in each bubble generator is utilized to form jet flow, so that gas dissolved in the ore pulp is separated out to form a micro gas core, negative pressure is formed in each bubble generator under the wrapping action of jet flow boundary layer separation, air is sucked in from an air suction pipe, gas-solid-liquid three-phase ore pulp generates strong fluid mixing when passing through a throat component of the bubble generator at high speed, the sucked gas is dispersed into micro bubbles, secondary injection is formed at an outlet of the throat component, at the moment, the air entering the ore pulp in the air suction stage enters steps to be separated out in a mode, and simultaneously enters steps to be broken to generate bubbles with smaller size, therefore, the invention has the characteristic that the turbulence degree of particle bubble mineralization fluid mineralization is reduced in situ, the conventional particle is generated, the separation of mineralization and flotation are realized, and the relative flotation separation function of cavitation separation is realized, and the flotation selectivity of the flotation is not interfered mutually.
Drawings
FIG. 1 is a schematic structural diagram of cavitation jet microbubble flotation machines provided by the embodiment of the invention;
FIG. 2 is a schematic structural view of an intensive feeding aeration tank according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a cavitation jet flotation bubble generator in an embodiment of the invention.
In the figure, 1-an upper barrel body, 2-a lower barrel body, 3-a tailing pipe, 4-a tailing box, 5-an intensive feeding aeration tank, 6-a bubble generator, 7-a check valve, 8-an inner barrel, 9-a rectification grid, 10-a foam emission disc, 11-a circulation pipe, 12-a tailing concentrated barrel, 13-a concentrate overflow tank, 14-an air suction pipe, 15-a valve , 16-an operation platform, 17-a concentrate outlet pipe, 18-a tailing port, 19-an accident discharge valve, 20-a tailing port, 21-a tailing adjusting screw, 22-a partition plate, 23-a bottom plate, 24-a feeding port, 25-a pulp distribution port, 26-an air distribution port, 27-a concentrated air inlet pipe, 28- , 29-a vacuum gauge, 30-a feeding bent pipe, 31-a feeding pipe, 32-a nozzle, 33-a nozzle seat, 34-a clamp, 35-a throat pipe assembly, 36-an air suction port, 37-a enlarged pipe, 38-a second enlarged air valve pipe and 39-an expanded pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer and more complete, the technical solutions in the embodiments of the present invention will be described below, it is obvious that the described embodiments are partial embodiments of of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, the embodiment of the present invention provides cavitation jet micro bubble flotation machines and cavitation jet bubble generators, which include an intensive feeding aeration tank 5, an upper tank body 1 and a lower tank body 2, wherein the intensive feeding aeration tank 5 is located above an operation platform 16, the upper tank body 1 and the lower tank body 2 are located below the operation platform 16, and the upper tank body 1 is located above the lower tank body 2, and has a body structure.
As shown in fig. 2, a middle partition plate 22 is arranged in the intensive feeding aeration tank 5, and a plurality of slurry distribution ports 25 and a plurality of air distribution ports 26 are arranged on the side wall of the intensive feeding aeration tank and are respectively positioned above and below the middle partition plate 22.
As shown in fig. 1, a plurality of bubble generators 6 are connected with the intensive feed aeration tank 5 through the slurry distribution port 25 and the air distribution port 26; an inner barrel 8 is arranged in the lower barrel body 2, a rectifying grating 9 is arranged on the upper surface of the inner barrel 8, and a discharge hole below the bubble generator 6 penetrates through the rectifying grating 9 and then is arranged in the inner barrel 8; and a concentrate overflow trough 13 is arranged on the periphery of the upper barrel body 1. The concentrate overflow launder 13 is provided at the outer circumference of the upper tub 1 at a height higher than the tub wall of the upper tub so that the concentrate overflowing from the upper tub 1 can enter the concentrate overflow launder 13.
Specifically, as shown in fig. 3, the bubble generator 6 includes a feeding pipe 31, an end of the feeding pipe 31 is connected with the slurry distribution port 25, an end is connected with a nozzle 32, an outlet of the nozzle 32 is connected with an inlet of a throat assembly 35, the outlet of the nozzle 32 and the inlet of the throat assembly 35 are both disposed in the th enlarged pipe 37, an air suction port 36 located between the nozzle 32 and the throat assembly 35 is disposed on the th enlarged pipe 37, the air suction port 36 is connected with the air distribution port 26 through an air suction pipe 14, a check valve 7 is disposed on the air suction pipe 14, an end of the th enlarged pipe 37 is connected with an end of the second enlarged pipe 38, and an end of the second enlarged pipe 38 is provided with a flared expanding pipe 39.
, in this embodiment, the expanding tube 39 has an expanding angle in the range of 0-10 degrees and a ratio of height to expanding outlet in the range of 1-10. in addition, the bubble generator 6 further includes a feeding elbow 30, and the feeding tube 31 is connected to the intensive feeding aeration tank 5 through the feeding elbow 30.
, as shown in fig. 3, in this embodiment, the bubble generator 6 further includes a clip 34 and a nozzle holder 33, the nozzle holder 33 is clipped on the periphery of the nozzle 32, the end of the nozzle holder 33 is fixedly connected with the throat assembly 35 and the end of the th enlarged tube 37 by bolts, and the end is fixedly connected with the feeding tube 31 by the clip 34.
, as shown in fig. 2, the intensive feeding aeration tank 5 is further provided with a concentrated air inlet pipe 27 located below the middle partition 22, the concentrated air inlet pipe 27 is provided with an air valve 28, and the intensive feeding aeration tank 5 is further provided with a vacuum gauge 29 for measuring the vacuum degree of the space below the middle partition 22.
, as shown in fig. 1, a foam reflection disc 10 is provided in the inner barrel 8. in this embodiment, the foam reflection disc 10 cooperates with the flow straightening grid 9, to force the gas-solid-liquid three-phase flow entering the mineralized bubbles and pulp separation space to form an ascending flow velocity in aspect, to retard the falling of large particles from the bubbles, and to isolate the high-turbulence particle bubble mineralization region from the low-turbulence mineralization bubble separation region in aspect, to suppress the disturbance of the high-turbulence mineralization region to the separation of mineralization bubbles and the stability of the foam layer, to improve the flotation efficiency, especially to improve the recovery rate of coarse-grained particles.
, as shown in fig. 1, the concentrate overflow trough 13 is provided with a concentrate outlet pipe 17 at the bottom, the lower barrel 2 is provided with a tailing concentration barrel 12 at the bottom, the inner barrel 8 is provided with a circulating pipe 11 at the bottom, the tailing concentration barrel 12 is connected with a tailing port 20 through a tailing pipe 3, the tailing pipe 3 is provided with an accident discharge valve 19, and the tailing port 20 is provided with a tailing adjusting screw 21.
The operation principle of the invention is that during operation, floating coal slurry is pressurized by a pump and is fed into an intensive feeding aeration tank 5 through a feed inlet 24, the slurry is uniformly distributed to a plurality of bubble generators 6 through a slurry distribution port 26, an air suction pipe 14 and a check valve 7 at the upper part of the intensive feeding aeration tank 5, the pressurized slurry forms jet flow when being sprayed out through a nozzle 32, negative pressure is formed in a space between an outlet of the nozzle 32 and a throat assembly 35, air is sucked from the intensive feeding aeration tank 5 through an air suction port 36 and the air suction pipe 14, the check valve 7 is arranged at the end of the air suction pipe 14 close to the bubble generator 6, the intensive feeding aeration tank 5 is provided with a pressure gauge 29, a total air inlet pipe 27 and a valve arranged thereon control the total air inlet amount through the opening of a valve 28, the gas-solid-liquid mixture is generated when the gas-solid-liquid high speed collides with the throat assembly 35 at high speed, the same, the sucked gas is dispersed into micro-bubbles, secondary spraying is formed at the outlet of the throat assembly 35, the secondary spraying is formed at the outlet, the outlet of the secondary spraying gas-liquid.
The embodiment of the invention provides cavitation jet micro-bubble flotation machines and cavitation jet bubble generators, wherein the key sub-processes of the flotation process are realized, particle bubble mineralization attachment is developed and designed according to the principle that the turbulence degree of fluid is reduced in a gradient manner, the highest fluid mixing intensity is generated in a space formed by a nozzle 32, a throat pipe assembly 35 and an air suction pipe 36 in a bubble generator 6, the medium fluid mixing intensity is generated in a space formed by expanding pipes 37 and 38 and a lower expanding pipe 39 in the bubble generator 6, the fluid mixing intensity of a space formed by a foam reflecting disc 10 and a rectifying grating 9 in an inner barrel 8 is reduced by steps, and the turbulence degree of fluid in three mineralization spaces is reduced by 10 times, so that the mineralization bubbles can be generated on the surface of the mineralization hydrophobic particles in situ and the conventional mineralization bubbles can be generated at the same time, the functions of relative isolation and mutual noninterference of cavitation of particle mineralization and flotation bubbles are realized, and the recovery rate and selectivity of the micro particles are synchronously improved.
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; while the invention has been described in detail and with reference to the foregoing embodiments, it will 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; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
- The cavitation jet microbubble flotation machine and the cavitation jet bubble generator are characterized by comprising an intensive feeding aeration tank (5), an upper tank body (1) and a lower tank body (2), wherein a middle partition plate (22) is arranged in the intensive feeding aeration tank (5), a plurality of ore pulp distribution ports (25) and a plurality of air distribution ports (26) are arranged on the side wall and are respectively positioned above and below the middle partition plate (22), a plurality of bubble generators (6) are connected with the intensive feeding aeration tank (5) through the ore pulp distribution ports (25) and the air distribution ports (26), an inner tank (8) is arranged in the lower tank body (2), a rectifying grating (9) is arranged on the upper surface of the inner tank (8), a discharge port below the bubble generators (6) penetrates through the rectifying grating (9) and is arranged in the inner tank (8), and a concentrate overflow trough (13) is arranged on the periphery of the upper tank body (1).
- 2. The cavitation jet microbubble flotation machine according to claim 1, characterized in that the bubble generator (6) comprises a feed pipe (31), the feed pipe (31) end is connected with the slurry distribution port (25), the other end is connected with a nozzle (32), the outlet of the nozzle (32) is connected with the inlet of a throat assembly (35), the outlet of the nozzle (32) and the inlet of the throat assembly (35) are both arranged in the enlarged pipe (37), the enlarged pipe (37) is provided with a suction port (36) between the nozzle (32) and the throat assembly (35), the suction port (36) is connected with the air distribution port (26) through a suction pipe (14), the other end of the enlarged pipe (37) is connected with the end of the second enlarged pipe (38), and the other end of the second enlarged pipe (38) is provided with a flared expanding pipe (39).
- 3. The cavitation jet micro-bubble flotation machine according to claim 2, characterized in that the expansion tube (39) has an expansion angle in the range of 0-10 degrees and a height to expansion outlet ratio in the range of 1-10.
- 4. The cavitation jet microbubble flotation machine of claim 2, characterized in that, the bubble generator (6) further comprises a clamp (34) and a nozzle holder (33), the nozzle holder (33) is clamped at the periphery of the nozzle (32), the end of the nozzle holder (33) is fixedly connected with the throat pipe assembly (35) and the end of the enlarged pipe (37) through bolts, and the other end is fixedly connected with the feeding pipe (31) through the clamp (34).
- 5. The cavitation jet microbubble flotation machine according to claim 1, characterized in that, a centralized air inlet pipe (27) is further arranged on the centralized feeding aeration tank (5) below the middle partition plate (22), an air valve (28) is arranged on the centralized air inlet pipe (27), and a vacuum gauge (29) for measuring the vacuum degree of the space below the middle partition plate (22) is further arranged on the centralized feeding aeration tank (5).
- 6. The kinds of cavitation jet microbubble flotation machines according to claim 1, characterized in that a foam reflection disc (10) is arranged in the inner barrel (8).
- 7. The cavitation jet microbubble flotation machine according to claim 1, characterized in that, the concentrate overflow launder (13) is provided with a concentrate outlet pipe (17) at the bottom, the lower barrel body (2) is provided with a tailing concentration barrel (12) at the bottom, the inner barrel (8) is provided with a circulating pipe (11) at the bottom, the tailing concentration barrel (12) is connected with a tailing tank (4) through a tailing pipe (3), the tailing pipe (3) is provided with an accident discharge valve (19), and the tailing tank (4) is provided with a tailing adjusting screw (21).
- 8, cavitation jet bubble generator, characterized by that, including the pan feeding pipe (31), the pan feeding pipe (31) end is connected with the ore pulp distribution mouth (25), another end is connected with nozzle (32), the export of the nozzle (32) is connected with the entrance of throat pipe subassembly (35), and the export of the nozzle (32) and the entrance of throat pipe subassembly (35) all set up in the enlarged pipe (37), there is suction port (36) located between throat pipe subassembly (35) and the nozzle (32) on the enlarged pipe (37), the suction port (36) is connected with the air distribution mouth (26) through breathing pipe (14), the other end of the enlarged pipe (37) is connected with the end of the second enlarged pipe (38), the other end of the second enlarged pipe (38) is provided with flared extension pipe (39).
- 9. The cavitation jet bubble generator of claim 8, characterized in that the expanding tube (39) has an angle of expansion in the range of 0-10 degrees and a height to expanding exit ratio in the range of 1-10.
- 10. The cavitation jet bubble generator of claim 8, further comprising a clamp (34) and a nozzle holder (33), wherein the nozzle holder (33) is clamped at the periphery of the nozzle (32), the end of the nozzle holder (33) is fixedly connected with the throat assembly (35) and the end of the enlarged tube (37) through bolts, and the other end is fixedly connected with the feeding tube (31) through the clamp (34).
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| CN201911031732.6A CN110732412A (en) | 2019-10-28 | 2019-10-28 | cavitation jet flow microbubble flotation machine and cavitation jet flow bubble generator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112916214A (en) * | 2020-12-25 | 2021-06-08 | 郴州天朗金石矿山设备有限公司 | Universal mineral processing equipment device and method for refitting non-ferrous metal ore and non-metallic ore |
| CN113058750A (en) * | 2021-03-30 | 2021-07-02 | 太原睿孚特选煤技术有限公司 | Reverse fluidization bubble bed coal slime flotation machine |
| CN113546766A (en) * | 2021-07-28 | 2021-10-26 | 太原钢铁(集团)有限公司 | Anti-reverse-suction control method for oversized flotation machine |
| CN113617538A (en) * | 2021-09-01 | 2021-11-09 | 西山煤电(集团)有限责任公司 | Jet type flotation machine for coal |
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