CN106762693B - Fault-free rake suction device for coal mine mining face - Google Patents
Fault-free rake suction device for coal mine mining face Download PDFInfo
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- CN106762693B CN106762693B CN201611048613.8A CN201611048613A CN106762693B CN 106762693 B CN106762693 B CN 106762693B CN 201611048613 A CN201611048613 A CN 201611048613A CN 106762693 B CN106762693 B CN 106762693B
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- Prior art keywords
- water pump
- pump
- motor
- impeller
- fault
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials especially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
- F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
- F04D7/045—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous with means for comminuting, mixing stirring or otherwise treating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses a fault-free drag suction device for a coal mine mining face, which comprises a motor, a water pump, a central shaft and a drag suction part, wherein the motor is arranged above the water pump; the suction inlet below the water pump is also provided with a rake suction device, so that a large amount of broken coal, broken stone and other impurities affecting the work of the water pump can be effectively filtered, the use risk of the water pump is reduced, and the service life is prolonged; the induction start-stop component is arranged on the trailing suction hopper component, and the automatic start-stop of the water pump is realized according to the preset start-stop liquid level, so that the degree of automation is improved, and the working intensity of field workers is reduced.
Description
Technical Field
The invention relates to coal machinery, in particular to a fault-free drag device for a coal mine mining face.
Background
At present, the drainage operation of a vertical pipeline pump is mostly adopted for the drainage of the wastewater of the mining face of the domestic coal mine, and the pump has the characteristics of small occupied area, simplicity and convenience in installation and the like; however, the defects are also remarkable, a large amount of broken coal slag, broken earth and stone with higher hardness fall onto the ground in working of the mining surface area, the waste water mixed with impurities easily causes blockage or damage of the water pump in the working of the water pump due to the small volume of the pump, and a large amount of waste water containing impurities cannot be discharged along with the water level drop and is deposited in a roadway, so that inconvenience is brought to production
Therefore, how to quickly and effectively discharge the wastewater of the coal mine mining face becomes a technical problem to be solved urgently.
Disclosure of Invention
The invention aims to provide a fault-free drag device for a coal mine mining face, which solves the problems in the prior art, can effectively discharge waste water containing impurities in the coal mine mining face area, and has the advantages of compact structure and convenient use.
In order to achieve the above object, the present invention provides the following solutions:
the invention provides a fault-free rake suction device for a coal mine excavation face, which comprises a motor, a water pump, a central shaft and a rake suction part, wherein the motor is arranged above the water pump; the motor comprises a machine body and a motor shell, the water pump comprises a pump body and a pump cover, the pump cover is fixed above the pump body, the lower end of the motor shell is fixedly connected with the pump cover, and a motor junction box is arranged at the top end of the motor shell and used for being connected with a power supply;
the center of the top end of the motor casing is provided with a first bearing, the center of the top end of the pump cover is provided with a second bearing, the central shaft sequentially penetrates through the first bearing and the second bearing, the bottom end of the central shaft penetrates through the water pump and is connected with an impeller, and a sealing device is arranged between the central shaft and the top of the pump body; the suction-drag component is provided with a suction port, the suction port is arranged concentrically with the central shaft, the suction port is connected with a liquid channel at the bottom of the water pump, and one side of the liquid channel is also connected with a liquid discharge pipe.
Optionally, the impeller is open structure, the impeller bottom still is connected with the whirlwind wheel, the whirlwind wheel with the impeller concentric setting.
Optionally, the pump body bottom is fixed with the antifriction plate through the bolt, the antifriction plate is located the impeller front end, still seted up on the antifriction plate and cut the groove.
Optionally, the surfaces of the impeller and the wear-resistant plate are sprayed with a wear-resistant coating.
Optionally, an induction start-stop component is installed on the trailing suction hopper component, and the induction start-stop component realizes automatic start-stop of the water pump according to a preset start-stop liquid level.
Optionally, the sealing device is a mechanical seal.
Optionally, the lower extreme of motor casing with the pump cover passes through bolt fixed connection, the pump cover passes through the bolt fastening the pump body top.
Compared with the prior art, the invention has the following technical effects:
the fault-free rake suction device for the coal mine mining face can crush broken coal, broken stone and other impurities in sewage, can effectively filter out a large amount of impurities, reduces the use risk of a pump and prolongs the service life; the induction start-stop component is arranged on the trailing suction component, so that the automatic start-stop of the water pump is realized, the degree of automation is improved, and the working intensity of on-site workers is reduced; the whole modularized design is adopted, and the disassembly, assembly and maintenance are simpler and more convenient.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, it will be obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a fault-free drag device for a coal mine face of the present invention;
wherein, 1 is the trailing suction fitting, 2 is the pump body, 3 is the pump cover, 4 is the center pin, 5 is the organism, 6 is the motor casing, 7 is the motor terminal box, 8 is the liquid suction port, 9 is the impeller, 10 is the cyclone, 11 is the fluid-discharge tube, 12 is sealing device, 13 is the bolt, 14 is first bearing, 15 is the second bearing, 16 is the antifriction plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide a fault-free drag device for a coal mine mining face, which solves the problems in the prior art, can effectively discharge waste water containing impurities in the coal mine mining face area, and has the advantages of compact structure and convenient use.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
The invention provides a fault-free drag suction device for a coal mine mining face, which is shown in figure 1 and comprises a motor, a water pump, a central shaft 4 and a drag suction part 1, wherein the motor is arranged above the water pump, and the drag suction part 1 is arranged at a suction inlet below the water pump; the motor comprises a machine body 5 and a motor shell 6, the water pump comprises a pump body 2 and a pump cover 3, the pump cover 3 is fixed above the pump body 2, the lower end of the motor shell 6 is fixedly connected with the pump cover 3, and a motor junction box 7 is arranged at the top end of the motor shell 6 and used for being connected with a power supply;
the center of the top end of the motor casing 6 is provided with a first bearing 14, the center of the top end of the pump cover 3 is provided with a second bearing 15, the central shaft 4 sequentially penetrates through the first bearing 14 and the second bearing 15, the bottom end of the central shaft 4 penetrates through the water pump and is connected with an impeller 9, a sealing device 12 is arranged between the central shaft 4 and the top of the pump body 2, and the sealing device 12 is a mechanical seal; the suction-drag part 1 is provided with a suction port 8, the suction port 8 is arranged concentrically with the central shaft 4, the suction port 8 is connected with a liquid channel at the bottom of the water pump, and one side of the liquid channel is also connected with a liquid discharge pipe 11.
The working process of the fault-free rake suction device for the coal mine mining face is as follows:
the water pump is arranged at the pump position, so that the water level completely drops beyond the impeller 9 and is required to be lower than the second bearing 15, then a hose is connected with the liquid discharge pipe 11 of the water pump, after the liquid level is started and stopped, the motor is started, the motor drives the water pump to work through the central shaft 4, sewage enters the pump body 2 after being filtered by the suction-raking component 1 at the inlet of the water pump, and is discharged from the liquid discharge pipe 11 after being accelerated by the impeller 9.
After the water pump discharges water, the liquid level can drop, when the water pump is required to be started again, the situation that the liquid level is lower than the water pump impeller 9 possibly occurs, and in order to avoid the situation, the water pump adopts an adjustable installation mode, so that the installation height of the water pump can be adjusted according to the change of the liquid level, and the timely starting of the water pump is ensured.
The invention adopts the arrangement mode of the motor and the water pump sharing the central shaft 4, reduces the height of the device, adopts vertical installation, has a suction inlet at the bottom of the device, does not need to be connected with other pipelines, and is easier to install and use on the mining surface with limited space.
The suction inlet of water pump below department still is provided with harrow suction unit 1, and harrow suction unit 1 includes harrow head and the imbibition mouth of spike shape, and the harrow head can effectually filter a large amount of broken coal, rubble etc. and influence the impurity of water pump work, reduces the use risk of water pump, increase of service life. The bottom end of the impeller 9 is also connected with a cyclone wheel 10, and the cyclone wheel 10 and the impeller 9 are concentrically arranged, so that the cavitation performance of the pump can be improved, and the working efficiency of the pump can be improved by adopting the structural design; in addition, the cyclone wheel 10 can crush most of sucked large-size impurities, so that the risk of blocking the pump is effectively reduced. The impeller 9 is open structure, and the wear-resisting plate 16 is fixed with through bolt 13 in the pump body 2 bottom, and wear-resisting plate 16 is located impeller 9 front end this moment, opens on the wear-resisting plate 16 has the cutting groove, and during operation of water pump, impeller 9 and wear-resisting plate 16 are relative motion, just so can reduce the risk that the water pump was plugged up, and impeller 9 and wear-resisting plate 16 also play the grinding, cut effect to the partial debris of inhalant simultaneously, make it discharge more easily. The surfaces of the impeller 9 and the wear-resistant plate 16 are sprayed with a wear-resistant coating by adopting plasma spraying, flame spraying, supersonic spraying or electric arc spraying and other spraying technologies, which can be ceramic coating, metal wear-resistant coating or tungsten carbide coating, and the like, so that the hardness and wear-resistant capability of the impeller 9 and the wear-resistant plate are improved, the service life of the impeller is prolonged, and other wear-resistant coating technologies capable of playing the roles can be adopted for spraying the impeller 9 and the wear-resistant plate 16.
The suction-drag component 1 is provided with an induction start-stop component which can be a liquid level induction switch, the liquid level induction switch is connected with a motor and a motor junction box in series, after the liquid level is preset to be started and stopped, when the sewage reaches the appointed liquid level, the liquid level induction switch is closed, the motor is electrified to drive the water pump to work, and when the sewage is lower than the appointed liquid level, the liquid level induction switch is opened, and the water pump stops working; the liquid level of sewage is sensed by the liquid level sensing switch to control the switch of the water pump, so that the automatic start and stop of the water pump are realized, the degree of automation is improved, and the working intensity of field workers is reduced.
The fault-free drag suction device for the coal mine mining face adopts an integral modularized design, the lower end of the motor casing 6 is fixedly connected with the pump cover 3 through the bolts 13, the pump cover 3 is also fixed above the pump body 2 through the bolts 13, and the disassembly, the assembly and the maintenance are simpler and more convenient.
The principles and embodiments of the present invention have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present invention; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In summary, the present description should not be construed as limiting the invention.
Claims (6)
1. The utility model provides a colliery face is excavated and is had trouble rake suction device which characterized in that: the device comprises a motor, a water pump, a central shaft and a trailing suction component, wherein the motor is arranged above the water pump, and the trailing suction component is arranged below the water pump; the motor comprises a machine body and a motor shell, the water pump comprises a pump body and a pump cover, the pump cover is fixed above the pump body, the lower end of the motor shell is fixedly connected with the pump cover, and a motor junction box is arranged at the top end of the motor shell and used for being connected with a power supply;
the center of the top end of the motor casing is provided with a first bearing, the center of the top end of the pump cover is provided with a second bearing, the central shaft sequentially penetrates through the first bearing and the second bearing, the bottom end of the central shaft penetrates through the water pump and is connected with an impeller, and a sealing device is arranged between the central shaft and the top of the pump body; the harrowing and sucking component comprises a harrow-shaped harrow head, a liquid sucking port is arranged on the harrowing and sucking component, the liquid sucking port is arranged concentrically with the central shaft, the liquid sucking port is connected with a liquid channel at the bottom of the water pump, and one side of the liquid channel is also connected with a liquid discharge pipe;
the automatic start and stop device is characterized in that an induction start and stop part is arranged on the trailing suction hopper part, the automatic start and stop of the water pump is realized by the induction start and stop part according to preset start and stop liquid levels, the water pump adopts an adjustable installation mode, and the installation height of the water pump can be adjusted according to the change of the liquid levels.
2. A fault-free rake suction device for a coal mine face as claimed in claim 1, wherein: the impeller is of an open structure, the bottom end of the impeller is also connected with a cyclone wheel, and the cyclone wheel and the impeller are concentrically arranged.
3. A fault-free rake suction device for a coal mine face as claimed in claim 1, wherein: the bottom end of the pump body is fixedly provided with a wear-resisting plate through a bolt, the wear-resisting plate is positioned at the front end of the impeller, and a cutting groove is further formed in the wear-resisting plate.
4. A fault-free rake suction device for a coal mine face as claimed in claim 3, wherein: the surfaces of the impeller and the wear-resistant plate are sprayed with a wear-resistant coating.
5. A fault-free rake suction device for a coal mine face as claimed in claim 1, wherein: the sealing device is a mechanical seal.
6. A fault-free rake suction device for a coal mine face as claimed in claim 1, wherein: the lower end of the motor casing is fixedly connected with the pump cover through bolts, and the pump cover is fixed above the pump body through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611048613.8A CN106762693B (en) | 2016-11-25 | 2016-11-25 | Fault-free rake suction device for coal mine mining face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611048613.8A CN106762693B (en) | 2016-11-25 | 2016-11-25 | Fault-free rake suction device for coal mine mining face |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106762693A CN106762693A (en) | 2017-05-31 |
| CN106762693B true CN106762693B (en) | 2023-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611048613.8A Active CN106762693B (en) | 2016-11-25 | 2016-11-25 | Fault-free rake suction device for coal mine mining face |
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| CN (1) | CN106762693B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111608919B (en) * | 2020-06-04 | 2021-05-04 | 浙江富莱欧机电有限公司 | Submersible sewage pump for sewage treatment |
| US11835061B1 (en) * | 2022-11-10 | 2023-12-05 | Industrial Flow Solutions Operating, Llc | Split volute for submersible pump |
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| CN2416256Y (en) * | 1999-01-11 | 2001-01-24 | 蒋万能 | Submersible bell inner impact type drainage pump |
| CN202431543U (en) * | 2011-12-15 | 2012-09-12 | 淮南市大通矿山机电配件厂 | Explosion-proof mine submersible pump |
| CN203272208U (en) * | 2013-03-29 | 2013-11-06 | 大连罗斯泵业有限公司 | Non-blocking centrifugal pump |
| CN205064301U (en) * | 2015-10-13 | 2016-03-02 | 中山市创星电器有限公司 | Water pump |
| CN105736400A (en) * | 2016-04-09 | 2016-07-06 | 博山华翔机械制造有限公司 | Remote intelligent digitized flame-proof type submersible slurry pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07293496A (en) * | 1994-04-27 | 1995-11-07 | Terada Pump Seisakusho:Kk | Submerged pump |
| CN201486881U (en) * | 2009-08-04 | 2010-05-26 | 朱丹 | Novel diving blow-down pump with automatic sensing function |
| CN204082575U (en) * | 2014-09-10 | 2015-01-07 | 上海汇业机械科技有限公司 | diving cutting dredge pump |
| CN204284023U (en) * | 2014-12-05 | 2015-04-22 | 上海丹泉泵业(集团)有限公司 | submersible sewage pump |
| CN204532879U (en) * | 2015-01-16 | 2015-08-05 | 北京市美丰粤华泵业有限公司 | Automatic stirring proof submersible sand discharging pump |
| CN206246378U (en) * | 2016-11-25 | 2017-06-13 | 大连鸿泽泵业有限公司 | Colliery face fault-free drag and suction device |
-
2016
- 2016-11-25 CN CN201611048613.8A patent/CN106762693B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2416256Y (en) * | 1999-01-11 | 2001-01-24 | 蒋万能 | Submersible bell inner impact type drainage pump |
| CN202431543U (en) * | 2011-12-15 | 2012-09-12 | 淮南市大通矿山机电配件厂 | Explosion-proof mine submersible pump |
| CN203272208U (en) * | 2013-03-29 | 2013-11-06 | 大连罗斯泵业有限公司 | Non-blocking centrifugal pump |
| CN205064301U (en) * | 2015-10-13 | 2016-03-02 | 中山市创星电器有限公司 | Water pump |
| CN105736400A (en) * | 2016-04-09 | 2016-07-06 | 博山华翔机械制造有限公司 | Remote intelligent digitized flame-proof type submersible slurry pump |
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| CN106762693A (en) | 2017-05-31 |
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