CN113522537A - Flotation device for mining flotation process - Google Patents
Flotation device for mining flotation process Download PDFInfo
- Publication number
- CN113522537A CN113522537A CN202110784626.6A CN202110784626A CN113522537A CN 113522537 A CN113522537 A CN 113522537A CN 202110784626 A CN202110784626 A CN 202110784626A CN 113522537 A CN113522537 A CN 113522537A
- Authority
- CN
- China
- Prior art keywords
- vane
- blade
- air supply
- guide
- flotation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/14—Flotation machines
- B03D1/16—Flotation machines with impellers; Subaeration machines
-
- 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
- B03D1/22—Flotation machines with impellers; Subaeration machines with external blowers
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biotechnology (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The invention discloses a flotation device for a mining flotation process, which comprises a container tank (1), a central pipe (2), a rotating shaft (3), an impeller (4), a fixed disc (5), stator blades (6), an air guide pipe (7), an overflow pipe (8), an annular collecting tank (9) and a flow guide blade group (10), and is characterized in that: the guide vanes comprise a plurality of guide vane groups, each guide vane group comprises a first vane (11), a second vane (12) and a third vane (13), the axial heights of the first vane, the second vane and the third vane are different, and the radial widths of the first vane, the second vane and the third vane are different. According to the invention, through the design of the guide vane groups and the air supply channel, the mixed liquid on the peripheral wall of the container tank can flow upwards from the bottom end along the guide vane groups, so that a flotation layer on the liquid surface can conveniently flow into the annular collecting tank through the overflow pipe, the collection effect of substances in the flotation layer flowing to the overflow pipe is improved, and the flotation efficiency of the flotation device is improved.
Description
Technical Field
The invention relates to the technical field of flotation of mineral aggregates and lithium ores, in particular to a flotation device for a mining flotation process.
Background
As shown in fig. 1, the flotation device of the existing mining flotation process includes a container tank 1, a central tube 2, a rotating shaft 3, an impeller 4, a fixed disk 5, stator blades 6, an air entraining pipe 7, an overflow pipe 8, an annular collecting tank 9, and a guide blade group 10, the container tank 1 is provided with the central tube 2, the central tube 2 is provided with the rotating shaft 3, the rotating shaft 3 is in transmission connection with a driving motor outside the container tank 1, the impeller 4 is provided at the bottom end of the rotating shaft 3, the fixed disk 5 is provided at the bottom end of the central tube 2, the lower end face of the fixed disk 5 is provided with a plurality of stator blades 6, the plurality of stator blades 6 are located at the radial periphery of the impeller 4, the central tube 2 is communicated with the air entraining pipe 7, the air entraining pipe 7 is arranged obliquely relative to the rotating shaft 3, the upper peripheral wall of the container tank 1 is provided with a plurality of overflow pipes 8, the overflow pipes 8 are communicated with overflow ports 81, the peripheries of the plurality of overflow pipes 8 are provided with the annular collecting tank 9, the inner peripheral wall of the container groove 1 is provided with a plurality of guide vanes 10, the guide vanes 10 extend axially, and the guide vanes 10 are distributed along the circumferential direction.
The existing flotation device has the problems that the flowing performance is poor and the collection effect of an overflow pipe on substances in a flotation layer is poor when mixed liquid on the peripheral wall of a container tank flows upwards from the bottom end along a guide vane.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a flotation device for a mining flotation process, which can improve the flow of mixed liquid on the peripheral wall of a container tank from the bottom end to the top along a guide vane group through the design of a plurality of guide vane groups and an air supply channel, so that a flotation layer on a liquid surface can conveniently flow into an annular collecting tank through an overflow pipe, the collection effect of substances in the flotation layer flowing to the overflow pipe is improved, and the flotation efficiency of the flotation device is improved.
In order to achieve the purpose, the invention adopts the technical scheme that:
a flotation device for a mining flotation process comprises a container tank (1), a central tube (2), a rotating shaft (3), an impeller (4), a fixed disc (5), stator blades (6), a gas guide pipe (7), overflow pipes (8), an annular collecting tank (9) and a flow guide blade group (10), wherein the central tube is arranged in the container tank, the rotating shaft is arranged in the central tube and is in transmission connection with a driving motor outside the container tank, the impeller is arranged at the bottom end of the rotating shaft, the fixed disc is arranged at the bottom end of the central tube, a plurality of stator blades are arranged on the lower end face of the fixed disc and are positioned on the radial periphery of the impeller, the gas guide pipe is communicated with the central tube and is obliquely arranged relative to the rotating shaft, a plurality of overflow pipes are arranged on the peripheral wall of the upper part of the container tank and are communicated with overflow ports (81), and the annular collecting tanks are arranged on the peripheries of the overflow pipes, the internal perisporium in container groove is provided with a plurality of guide vanes, and a plurality of guide vanes set up its characterized in that along axial extension: the guide vanes comprise a plurality of guide vane groups (10), each guide vane group comprises a first vane (11), a second vane (12) and a third vane (13), the axial heights of the first vane, the second vane and the third vane are different, and the radial widths of the first vane, the second vane and the third vane are different.
Further, each guide vane group (10) comprises a plurality of first vanes (11), a plurality of second vanes (12) and a third vane (13), wherein the first vanes are positioned at the outer side of the second vanes, the second vanes are positioned at the outer side of the third vanes, and the axial height relation is as follows: the radial width relation of the first blade, the second blade and the third blade is as follows: the first blade > the second blade > the third blade.
Furthermore, a plurality of overflow pipes (8) and a plurality of guide vane groups (10) are arranged in a one-to-one correspondence manner.
Furthermore, one or more first air supply channels (14) are arranged in the first blade (11), the first air supply channels are provided with first inclined air outlet channels, the first inclined air outlet channels are obliquely arranged towards the blade surface of the second blade, one or more second air supply channels (15) are arranged in the second blade (12), the second air supply channels are provided with second inclined air outlet channels, and the second inclined air outlet channels are obliquely arranged towards the blade surface of the third blade; the peripheral wall of the container groove (1) is provided with one or more air supply interfaces (16), the air supply interfaces are communicated with the first air supply channel and/or the second air supply channel, and the air supply interfaces are connected with an air supply mechanism through air supply pipes.
Furthermore, the upper end of the first blade (11) is provided with a first inclined surface (17), the upper end of the second blade (12) is provided with a second inclined surface (18), the upper end of the third blade (13) is provided with an arc part (19), and the centers of circles of the first inclined surface, the second inclined surface and the arc part are collinear.
Further, the overflow opening (81) is located on the extension line of the third vane (13), and the overflow opening is located substantially in the middle of the line connecting the top ends of the two first vanes (11).
According to the flotation device for the mining flotation process, due to the design of the guide vane groups and the air supply channel, the mixed liquid on the peripheral wall of the container tank can flow upwards from the bottom end along the guide vane groups, so that a flotation layer of a liquid level can conveniently flow into the annular collecting tank through the overflow pipe, the collection effect of substances in the flotation layer flowing to the overflow pipe is improved, and the flotation efficiency of the flotation device is improved.
Drawings
FIG. 1 is a schematic structural diagram of a flotation device of a prior art mining flotation process;
FIG. 2 is a schematic structural diagram of a flotation device of the mining flotation process;
fig. 3 is a schematic view of the unfolding structure of the guide vane assembly of the present invention.
In the figure: the device comprises a container tank 1, a central pipe 2, a rotating shaft 3, an impeller 4, a fixed disk 5, stator blades 6, a gas guide pipe 7, an overflow pipe 8, an overflow port 81, an annular collecting tank 9, a flow guide blade group 10, first blades 11, second blades 12, third blades 13, a first gas supply channel 14, a second gas supply channel 15, a gas supply interface 16, a first inclined surface 17, a second inclined surface 18 and an arc part 19.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 2-3, a flotation device for a mining flotation process comprises a container tank 1, a central tube 2, a rotating shaft 3, an impeller 4, a fixed disk 5, stator blades 6, an air entraining tube 7, an overflow tube 8, an annular collecting tank 9 and a guide blade group 10, wherein the container tank 1 is internally provided with the central tube 2, the central tube 2 is internally provided with the rotating shaft 3, the rotating shaft 3 is in transmission connection with a driving motor outside the container tank 1, the impeller 4 is arranged at the bottom end of the rotating shaft 3, the fixed disk 5 is arranged at the bottom end of the central tube 2, the lower end face of the fixed disk 5 is provided with a plurality of stator blades 6, the plurality of stator blades 6 are positioned at the radial periphery of the impeller 4, the air entraining tube 7 is communicated with the central tube 2, the air entraining tube 7 is obliquely arranged relative to the rotating shaft 3, the upper peripheral wall of the container tank 1 is provided with a plurality of overflow tubes 8, the overflow tubes 8 are communicated with an overflow port 81, the annular collecting tank 9 is arranged at the peripheries of the plurality of overflow tubes 8, the internal perisporium of container groove 1 is provided with a plurality of guide vanes, and a plurality of guide vanes set up its characterized in that along axial extension: the guide vanes comprise a plurality of guide vane groups 10, each guide vane group 10 comprises a first vane 11, a second vane 12 and a third vane 13, the axial heights of the first vane 11, the second vane 12 and the third vane 13 are different, and the radial widths of the first vane 11, the second vane 12 and the third vane 13 are different.
Specifically, each guide vane group 10 includes a plurality of first vanes 11, a plurality of second vanes 12, and a third vane 13, the first vanes 11 are located outside the second vanes 12, the second vanes 12 are located outside the third vanes 13, and the axial height relationship is: the radial width relation of the first blade 11, the second blade 12 and the third blade 13 is as follows: the first blade 11 is larger than the second blade 12 is larger than the third blade 13.
The number of the overflow pipes 8 is four or six, and each overflow pipe 8 is correspondingly provided with a guide vane group 10.
According to the flotation device for the mining flotation process, due to the design of the guide vane groups 10, the mixed liquid on the peripheral wall of the container tank 1 can flow upwards from the bottom end along the guide vane groups, so that a flotation layer on the liquid surface can conveniently flow into the annular collecting tank 9 through the overflow pipe 8, the collection effect of the substances in the flotation layer flowing to the overflow pipe 8 is improved, and the flotation efficiency of the flotation device is improved.
As shown in fig. 3, one or more first air supply channels 14 are disposed in the first blade 11, the first air supply channels 14 have first inclined air outlet channels, the first inclined air outlet channels are disposed obliquely toward the blade surface of the second blade 12, one or more second air supply channels 15 are disposed in the second blade 12, the second air supply channels 15 have second inclined air outlet channels, and the second inclined air outlet channels are disposed obliquely toward the blade surface of the third blade 13. The peripheral wall of the container tank 1 is provided with one or more air supply ports 16, the air supply ports 16 are communicated with the first air supply channel 14 and/or the second air supply channel 15, and the air supply ports 16 are connected with an air supply mechanism (such as a blower) through air supply pipes.
According to the flotation device for the mining flotation process, due to the design of the air supply channel, the mixed liquid on the peripheral wall of the container tank 1 can be further promoted to flow upwards from the bottom end along the guide vane group, so that the flotation layer on the liquid surface can conveniently flow into the annular collecting tank 9 through the overflow pipe 8, the collection effect of the substances in the flotation layer flowing to the overflow pipe 8 is improved, and the flotation efficiency of the flotation device can be further improved.
Furthermore, the upper end of the first blade 11 has a first inclined surface 17, the upper end of the second blade 12 has a second inclined surface 18, the upper end of the third blade 13 has an arc portion 19, and the centers of the first inclined surface 17, the second inclined surface 18 and the arc portion 19 are collinear.
Further, the overflow 81 is located on the extension line of the third vane 13, and the overflow 81 is located substantially at the midpoint of the line connecting the tips of the two first vanes 11.
According to the flotation device for the mining flotation process, due to the design of the guide vane groups and the air supply channel, the mixed liquid on the peripheral wall of the container tank can flow upwards from the bottom end along the guide vane groups, so that a flotation layer of a liquid level can conveniently flow into the annular collecting tank through the overflow pipe, the collection effect of substances in the flotation layer flowing to the overflow pipe is improved, and the flotation efficiency of the flotation device is improved.
The above-described embodiments are illustrative of the present invention and not restrictive, it being understood that various changes, modifications, substitutions and alterations can be made herein without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims (6)
1. A flotation device for a mining flotation process comprises a container tank (1), a central tube (2), a rotating shaft (3), an impeller (4), a fixed disc (5), stator blades (6), a gas guide pipe (7), overflow pipes (8), an annular collecting tank (9) and a flow guide blade group (10), wherein the central tube is arranged in the container tank, the rotating shaft is arranged in the central tube and is in transmission connection with a driving motor outside the container tank, the impeller is arranged at the bottom end of the rotating shaft, the fixed disc is arranged at the bottom end of the central tube, a plurality of stator blades are arranged on the lower end face of the fixed disc and are positioned on the radial periphery of the impeller, the gas guide pipe is communicated with the central tube and is obliquely arranged relative to the rotating shaft, a plurality of overflow pipes are arranged on the peripheral wall of the upper part of the container tank and are communicated with overflow ports (81), and the annular collecting tanks are arranged on the peripheries of the overflow pipes, the internal perisporium in container groove is provided with a plurality of guide vanes, and a plurality of guide vanes set up its characterized in that along axial extension: the guide vanes comprise a plurality of guide vane groups (10), each guide vane group comprises a first vane (11), a second vane (12) and a third vane (13), the axial heights of the first vane, the second vane and the third vane are different, and the radial widths of the first vane, the second vane and the third vane are different.
2. A flotation device for a mining flotation process according to claim 1, characterized in that each guide vane group (10) comprises a plurality of first vanes (11), a plurality of second vanes (12), and a third vane (13), the first vanes are located on the outer side of the second vanes, the second vanes are located on the outer side of the third vanes, and the axial height relationship is as follows: the radial width relation of the first blade, the second blade and the third blade is as follows: the first blade > the second blade > the third blade.
3. A flotation device for a mining flotation process according to claim 2, characterized in that a plurality of overflow pipes (8) are arranged in one-to-one correspondence with a plurality of guide vane sets (10).
4. A flotation device for a mining flotation process according to claim 3, characterized in that one or more first air supply channels (14) are arranged in the first blade (11), the first air supply channels have first inclined air outlet channels which are arranged obliquely towards the blade surface of the second blade, one or more second air supply channels (15) are arranged in the second blade (12), the second air supply channels have second inclined air outlet channels which are arranged obliquely towards the blade surface of the third blade; the peripheral wall of the container groove (1) is provided with one or more air supply interfaces (16), the air supply interfaces are communicated with the first air supply channel and/or the second air supply channel, and the air supply interfaces are connected with an air supply mechanism through air supply pipes.
5. A flotation device for a mining flotation process according to claim 4, characterized in that the upper end of the first blade (11) is provided with a first inclined surface (17), the upper end of the second blade (12) is provided with a second inclined surface (18), the upper end of the third blade (13) is provided with a circular arc part (19), and the first inclined surface and the second inclined surface are collinear with the circle center of the circular arc part.
6. A flotation device for a mining flotation process according to claim 5, characterized in that the overflow opening (81) is located on the extension of the third blade (13) and is located substantially in the middle of the line connecting the tips of the two first blades (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110784626.6A CN113522537B (en) | 2021-07-12 | 2021-07-12 | Flotation device for mining flotation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110784626.6A CN113522537B (en) | 2021-07-12 | 2021-07-12 | Flotation device for mining flotation process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113522537A true CN113522537A (en) | 2021-10-22 |
| CN113522537B CN113522537B (en) | 2022-09-13 |
Family
ID=78098561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110784626.6A Active CN113522537B (en) | 2021-07-12 | 2021-07-12 | Flotation device for mining flotation process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113522537B (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1005479A (en) * | 1963-02-23 | 1965-09-22 | Kloeckner Humboldt Deutz Ag | Cell without agitator for the froth flotation treatment of mixtures of fine granular substances, particularly minerals |
| PL295802A1 (en) * | 1991-09-02 | 1993-04-19 | Outokumpu Mintec Oy | Method of adjusting foam level in flotation machines |
| CN1324270A (en) * | 1998-11-04 | 2001-11-28 | 通用信号公司 | Mixing system for separation of materials by flotation |
| CN1443094A (en) * | 2000-07-21 | 2003-09-17 | 奥托库姆普联合股份公司 | Flotation mechanism and method for dispersing gas and controlling flow in flotation cell |
| US20050098497A1 (en) * | 2003-11-12 | 2005-05-12 | Khudenko Boris M. | Pulsating reactors |
| RU2292954C1 (en) * | 2005-05-18 | 2007-02-10 | ОАО "Производственное объединение Усольмаш" | Assemblage for removal of the foam of the flotation machine |
| CN201140114Y (en) * | 2007-07-12 | 2008-10-29 | 北京矿冶研究总院 | Flotation machine |
| CN201147723Y (en) * | 2007-12-27 | 2008-11-12 | 金川集团有限公司 | Micro-bubble jet flotation machine |
| CN108212550A (en) * | 2016-12-22 | 2018-06-29 | 何征徽 | A kind of energy-saving wear-resistant type flotation machine |
| CN108457898A (en) * | 2018-05-01 | 2018-08-28 | 赵浩浩 | A kind of blade wheel structure for compressor |
| CN209061392U (en) * | 2018-10-22 | 2019-07-05 | 石城县恒兴选矿设备制造有限公司 | A kind of uniform mining flotation device of durable and blebbing |
| CN110369156A (en) * | 2019-08-15 | 2019-10-25 | 烟台金鹏矿业机械有限公司 | A kind of flotation device foam collection intensifying device |
| CN111495610A (en) * | 2020-04-24 | 2020-08-07 | 北矿机电科技有限责任公司 | Flotation device impeller |
| CN211436598U (en) * | 2019-10-17 | 2020-09-08 | 乌拉特后旗紫金矿业有限公司 | Novel jet type flotation machine |
| CN112212491A (en) * | 2020-10-26 | 2021-01-12 | 珠海格力电器股份有限公司 | Machine and air conditioner in spiral case, air conditioning |
-
2021
- 2021-07-12 CN CN202110784626.6A patent/CN113522537B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1005479A (en) * | 1963-02-23 | 1965-09-22 | Kloeckner Humboldt Deutz Ag | Cell without agitator for the froth flotation treatment of mixtures of fine granular substances, particularly minerals |
| PL295802A1 (en) * | 1991-09-02 | 1993-04-19 | Outokumpu Mintec Oy | Method of adjusting foam level in flotation machines |
| CN1324270A (en) * | 1998-11-04 | 2001-11-28 | 通用信号公司 | Mixing system for separation of materials by flotation |
| CN1443094A (en) * | 2000-07-21 | 2003-09-17 | 奥托库姆普联合股份公司 | Flotation mechanism and method for dispersing gas and controlling flow in flotation cell |
| US20030173262A1 (en) * | 2000-07-21 | 2003-09-18 | Seppo Jounela | Flotation mechanism and method for dispersing gas and controlling flow in a flotation cell |
| US20050098497A1 (en) * | 2003-11-12 | 2005-05-12 | Khudenko Boris M. | Pulsating reactors |
| RU2292954C1 (en) * | 2005-05-18 | 2007-02-10 | ОАО "Производственное объединение Усольмаш" | Assemblage for removal of the foam of the flotation machine |
| CN201140114Y (en) * | 2007-07-12 | 2008-10-29 | 北京矿冶研究总院 | Flotation machine |
| CN201147723Y (en) * | 2007-12-27 | 2008-11-12 | 金川集团有限公司 | Micro-bubble jet flotation machine |
| CN108212550A (en) * | 2016-12-22 | 2018-06-29 | 何征徽 | A kind of energy-saving wear-resistant type flotation machine |
| CN108457898A (en) * | 2018-05-01 | 2018-08-28 | 赵浩浩 | A kind of blade wheel structure for compressor |
| CN209061392U (en) * | 2018-10-22 | 2019-07-05 | 石城县恒兴选矿设备制造有限公司 | A kind of uniform mining flotation device of durable and blebbing |
| CN110369156A (en) * | 2019-08-15 | 2019-10-25 | 烟台金鹏矿业机械有限公司 | A kind of flotation device foam collection intensifying device |
| CN211436598U (en) * | 2019-10-17 | 2020-09-08 | 乌拉特后旗紫金矿业有限公司 | Novel jet type flotation machine |
| CN111495610A (en) * | 2020-04-24 | 2020-08-07 | 北矿机电科技有限责任公司 | Flotation device impeller |
| CN112212491A (en) * | 2020-10-26 | 2021-01-12 | 珠海格力电器股份有限公司 | Machine and air conditioner in spiral case, air conditioning |
Non-Patent Citations (1)
| Title |
|---|
| 王玲珑等: ""某锂瓷石矿选矿厂工艺流程改造实践"", 《现代矿业》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113522537B (en) | 2022-09-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206221314U (en) | Blower fan | |
| CN101089403A (en) | BJL multi-channel modified line special air conditioner energy-saving centrifugal pump | |
| CN113522537B (en) | Flotation device for mining flotation process | |
| CN206448980U (en) | Deep well pump and its impeller component | |
| CN111350698B (en) | Flow guide ring device and axial flow fan | |
| CN111535974A (en) | Low-water-head large-flow mixed-flow water turbine with double-inlet volute | |
| CN212867943U (en) | High-efficiency multi-stage pump set | |
| CN203098398U (en) | Blade type gas-liquid multiphase pump | |
| CN214617192U (en) | Centrifugal wind wheel with flow guide structure and centrifugal fan | |
| CN212250603U (en) | Inlet water flow eddy eliminating flow guider | |
| CN208546353U (en) | A kind of impeller and the scrubbing tower with the impeller | |
| CN209324730U (en) | A kind of self-suction pump impeller structure | |
| CN209244717U (en) | Spiral hydraulic drive | |
| CN211599101U (en) | Flow guide ring device and axial flow fan | |
| CN210473309U (en) | Integrated supergravity separation device | |
| CN208364482U (en) | A kind of half-opened impeller booster body | |
| CN111035310B (en) | Front spiral cyclone device for dust collector | |
| CN105863930A (en) | Small-size integrated water turbine generator set | |
| CN207813946U (en) | A kind of MODEL VERTICAL MULTISTAGE PUMP | |
| CN110748504A (en) | Hydraulic structure of side runner pump body | |
| CN212250602U (en) | Water inlet structure with despin diversion function | |
| CN205858785U (en) | The chemical centrifugal pump pump housing and there is the chemical centrifugal pump of this chemical centrifugal pump pump housing | |
| CN220956154U (en) | High-efficiency centrifugal pump impeller with lengthened flow passage and centrifugal pump | |
| CN203962490U (en) | A kind of diversion disk of multi-stage impeller centrifugal pump | |
| CN210829852U (en) | Guide vane structure of condensate pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |