CN114857018A - Pump station tailing conveying system and method - Google Patents
Pump station tailing conveying system and method Download PDFInfo
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- CN114857018A CN114857018A CN202210318325.9A CN202210318325A CN114857018A CN 114857018 A CN114857018 A CN 114857018A CN 202210318325 A CN202210318325 A CN 202210318325A CN 114857018 A CN114857018 A CN 114857018A
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 83
- 239000002002 slurry Substances 0.000 claims abstract description 68
- 238000001514 detection method Methods 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000002347 injection Methods 0.000 claims abstract description 17
- 239000007924 injection Substances 0.000 claims abstract description 17
- 230000006835 compression Effects 0.000 claims description 21
- 238000007906 compression Methods 0.000 claims description 21
- 239000002184 metal Substances 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 229920000742 Cotton Polymers 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 239000003085 diluting agent Substances 0.000 claims description 4
- 239000013049 sediment Substances 0.000 claims description 4
- 238000005299 abrasion Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 7
- 239000008187 granular material Substances 0.000 description 6
- 238000009413 insulation Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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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
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F13/00—Transport specially adapted to underground conditions
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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
- F04D15/0088—Testing machines
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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
- F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
-
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
-
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
- F04D29/4293—Details of fluid inlet or outlet
-
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a pump station tailing conveying system and a method, wherein the pump station tailing conveying system comprises a distribution pool, a tailing supply pipe, a water injection pipe and a liquid suction pipe, the tailing supply pipe, the water injection pipe and the liquid suction pipe are communicated with the distribution pool, a flow valve is arranged on the tailing supply pipe, a control valve is arranged on the water injection pipe, the liquid suction pipe is communicated with a liquid inlet of a slurry pump, a liquid outlet of the slurry pump is communicated with a liquid outlet pipe, an ore pulp liquid level detection device and an ore pulp concentration detection device are arranged in the distribution pool, the ore pulp liquid level detection device and the ore pulp concentration detection device are in signal connection with a controller, and the controller controls the flow valve, the control valve and the slurry pump to operate according to detection signals obtained by the ore pulp liquid level detection device and the ore pulp concentration detection device. Has the advantages that: the pump station tailing conveying system and the method can well protect the liquid inlet and outlet pipe of the sheath of the slurry pump, prevent the problem of sealing failure caused by conveying pressure fluctuation, and ensure that the conveying efficiency of the slurry pump is not reduced.
Description
Technical Field
The invention relates to the field of tailing conveying, in particular to a system and a method for conveying tailings of a pump station.
Background
The tailing pulp is usually conveyed by a pulp pump in a concentrating mill, and a sheath made of wear-resistant rubber is usually arranged in the pulp pump, so that the dead weight and the manufacturing cost of the pulp pump are reduced, the pulp conveying efficiency is improved, the conveying energy consumption is reduced, and the noise is reduced.
Because the total amount of tailings of the concentrating mill is always in an unstable state, the yield of the tailings is large sometimes, the yield of the tailings is small sometimes, and the running frequency of the slurry pump is constant, so that the feed inlet of the slurry pump is vacuumized when the amount of the tailings is small at a certain moment, the liquid inlet pipe of the sheath is sunken, and the liquid inlet pipe of the sheath is cracked due to fatigue corrosion in the past.
In addition, when the concentration of tailings is high, the pressure of the liquid outlet end of the slurry pump increases suddenly, so that the sheath liquid outlet pipe bulges, and the sheath liquid outlet pipe can burst seriously.
Even if the sheath advances drain pipe and has not broken the damage yet, above-mentioned phenomenon takes place many times and also can make the sealed inefficacy of sheath advances drain pipe early, influences sediment stuff pump transport efficiency.
Disclosure of Invention
The invention mainly aims to provide a pump station tailing conveying system and a pump station tailing conveying method, and aims to solve the problems that the conveying efficiency of a slurry pump is influenced due to sealing failure caused by damage of a sheath inlet and outlet pipe in the tailing conveying process of the conventional slurry pump in the background art.
In order to solve the problems, the invention provides a pump station tailing conveying system which comprises a distribution pool, a tailing supply pipe, a water injection pipe and a liquid suction pipe, wherein the tailing supply pipe, the water injection pipe and the liquid suction pipe are communicated with the distribution pool, a flow valve is arranged on the tailing supply pipe, a control valve is arranged on the water injection pipe, the liquid suction pipe is communicated with a liquid inlet of a slurry pump, a liquid outlet of the slurry pump is communicated with a liquid outlet pipe, an ore pulp liquid level detection device and an ore pulp concentration detection device are arranged in the distribution pool, the ore pulp liquid level detection device and the ore pulp concentration detection device are in signal connection with a controller, and the controller controls the flow valve, the control valve and the slurry pump to act according to detection signals obtained by the ore pulp liquid level detection device and the ore pulp concentration detection device.
In one embodiment, the slurry pump comprises a pump shell and a sheath arranged in the pump shell, wherein the sheath is provided with a liquid outlet half pipe interface and a liquid inlet pipe interface.
In one embodiment, the liquid outlet half pipe interface comprises:
the two ends of the arc-shaped shell are fixedly connected with the lining plates, and one end of each lining plate extends into the inner side of the arc-shaped shell;
the inner half pipe is arranged on the inner side of the arc-shaped shell and is coaxial with the arc-shaped shell, and two ends of the inner half pipe are fixedly connected with the lining plate extending into the inner side of the arc-shaped shell;
the middle half pipe is arranged between the inner half pipe and the arc-shaped shell and is coaxial with the arc-shaped shell, and two ends of the middle half pipe are fixedly connected with the lining plate extending into the inner side of the arc-shaped shell;
sound-absorbing particles filled between the middle half pipe and the inner half pipe;
the compression springs are evenly distributed along the circumferential direction of the arc-shaped shell, each compression spring is compressed or extended along the radial direction of the arc-shaped shell, and two ends of each compression spring are fixedly connected with the arc-shaped shell and the middle half pipe respectively.
In one embodiment, the inner side surface of the arc-shaped shell is fixedly provided with an inserting column, and one end of the compression spring is tightly inserted and sleeved on the inserting column.
In one embodiment, the arc-shaped shell and the lining plate are integrally arranged and are made of hard materials;
the arc-shaped shell and the lining plate are tightly attached to the inner wall of the pump shell.
In one embodiment, the inner half-pipe is made of wear-resistant rubber.
In one embodiment, the middle half-tube is made of a metal soft skin.
In one embodiment, soundproof cotton is arranged between the arc-shaped shell and the middle half pipe, and a mounting hole for the compression spring to penetrate through is formed in the soundproof cotton.
In one embodiment, the liquid inlet pipe interface comprises a pipe body and a sleeve ring tightly sleeved outside the pipe body, and a first through hole communicated with the inside of the pipe body is formed in the outer circumferential surface of the sleeve ring;
the outer circumferential surface of the lantern ring is tightly attached to the inner wall of the pump shell, and a second through hole communicated with the outside is formed in the inner wall, close to the lantern ring, of the pump shell.
In addition, in order to solve the above problems, the invention also provides a pump station tailing conveying method, which comprises the following steps:
acquiring the pulp liquid level and the pulp concentration in the distribution tank;
adjusting the supply amount of the ore pulp conveyed to the distribution tank by the tailing supply pipe and the frequency of a slurry pump according to the ore pulp liquid level information;
and adjusting the supply amount of the diluent filled into the distribution tank by the water injection pipe according to the pulp concentration.
Has the advantages that: the pump station tailing conveying system and the method can well protect the liquid inlet and outlet pipe of the sheath of the slurry pump, prevent the problem of sealing failure caused by conveying pressure fluctuation, and ensure that the conveying efficiency of the slurry pump is not reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of the construction of a pump station tailings conveying system according to the present invention;
FIG. 2 is a front view of the slurry pump jacket of the present invention;
FIG. 3 is a left side view of the slurry pump jacket of the present invention;
FIG. 4 is a cross-sectional view C-C of FIG. 2;
FIG. 5 is a schematic view of the installation of the inlet pipe interface of the slurry pump jacket of the present invention;
FIG. 6 is a cross-sectional view A-A of FIG. 3 of the present invention;
fig. 7 is an enlarged view of a portion B in fig. 6.
The reference numerals are explained below:
1. a distribution pool; 2. a tailings supply pipe; 3. a flow valve; 4. a water injection pipe; 5. a control valve; 6. an ore pulp liquid level detection device; 7. a pulp concentration detection device; 8. a slurry pump; 9. a liquid outlet pipe; 10. a controller; 11. a sheath body; 12. a liquid outlet half pipe interface; 13. an arc-shaped housing; 14. a liner plate; 15. an inner half pipe; 16. a middle half-pipe; 17. a compression spring; 18. sound-absorbing particles; 19. inserting a column; 20. a liquid inlet pipe interface; 21. a pipe body; 22. a collar; 23. a first through hole; 24. a pump housing; 25. a second through hole; 26. a pipette; 27. sound insulation cotton; 28. and (7) installing holes.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used for explaining the relative position relationship between the components, the motion situation, and the like under a certain posture (as shown in the drawing), and if the certain posture is changed, the directional indications are changed accordingly.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a pump station tailing conveying system.
In one embodiment of the invention, as shown in fig. 1, the pump station tailings conveying system comprises a distribution pool 1, a tailings supply pipe 2 communicated with the distribution pool 1, a water injection pipe 4 and a pipette 26, wherein the pipette 26 is communicated with a liquid inlet of a slurry pump 8, the tailing slurry in the distribution pool 1 is extracted by a slurry pump 8, preferably, a plurality of liquid suction pipes 26 communicated with the distribution pool 1 are arranged, each liquid suction pipe 26 is provided with the slurry pump 8, a plurality of tailing supply pipes 2 are communicated with the distribution tank 1, the tailing supply pipes 2 convey tailing slurry generated by a plurality of ore dressing devices to the distribution tank 1 for concentration, and then distributed to the plurality of pipettes 26, pumped away by the slurry pump 8 on the plurality of pipettes 26, the water injection pipe 4 is used for injecting diluent into the distribution tank 1, and common diluent is the clear water for the concentration of ore pulp in the regulation distribution tank 1 avoids appearing the too big problem of concentration.
In this embodiment, as shown in fig. 1, a flow valve 3 is arranged on the tailings supply pipe 2, and the flow valve 3 is used for adjusting the flow rate of the tailings supply pipe 2 so as to avoid causing severe fluctuation of the pulp liquid level in the distribution tank 1.
In this embodiment, as shown in fig. 1, a control valve 5 is disposed on the water injection pipe 4, and the control valve 5 is used to control the opening and closing of the water injection pipe 4 so as to adjust the concentration of the ore pulp in the distribution tank 1 and avoid the drastic fluctuation of the ore pulp concentration.
In this embodiment, as shown in fig. 1, the liquid outlet of the slurry pump 8 communicates with the liquid outlet pipe 9, the distribution tank 1 is provided with a slurry liquid level detection device 6 and a slurry concentration detection device 7, the slurry liquid level detection device 6 is used for detecting the liquid level of the tailing slurry in the distribution tank 1, the slurry concentration detection device 7 is used for detecting the concentration of the tailing slurry in the distribution tank 1, the slurry liquid level detection device 6 and the slurry concentration detection device 7 are in signal connection with the controller 10, the controller 10 is used for adjusting the opening degree of the flow valve 3, controlling the opening and closing of the control valve 5 and adjusting the frequency of the slurry pump 8 according to the detection signals obtained by the slurry liquid level detection device 6 and the slurry concentration detection device 7 so as to ensure that the concentration and the liquid level of the tailing slurry in the distribution tank 1 are constant, and generally, adjusting the frequency of the motor of the slurry pump 8 means that the pumping speed of the slurry pump 8 is also changed, for example, when the liquid level of the tailing slurry in the distribution tank 1 is reduced, the controller 10 controls the opening of the flow valve 3 to be increased, and simultaneously controls the frequency of the motor of the slurry pump 8 to be reduced, so that the liquid level of the tailing slurry in the distribution tank 1 is restored in the shortest time, and the vacuum at the feed inlet of the slurry pump 8 is effectively avoided, thereby avoiding the phenomenon that the sheath feed inlet pipe is sunken, ensuring that the sealing performance of the sheath feed inlet pipe is not reduced, and being beneficial to prolonging the service life of the sheath feed inlet pipe, and for example, when the concentration of the tailing slurry in the distribution tank 1 is increased, the controller 10 controls the control valve 5 to be opened, so that the water injection pipe 4 injects water into the distribution tank 1 to dilute the tailing concentration, and simultaneously controls the frequency of the motor of the slurry pump 8 to be reduced, so that the pumping speed is reduced, and the problem that the sealing performance of the sheath drain pipe 9 is reduced due to the bulge of the sheath drain pipe 9 caused by the overlarge delivery pressure of the tailing slurry pump 8 is avoided, the conveying efficiency of the slurry pump 8 is not affected by the reduction of the sealing performance of the sheath liquid inlet and outlet pipe 9.
In this embodiment, as shown in fig. 2 and 3, the slurry pump 8 includes a pump housing 24 and a pair of sheaths disposed in the pump housing 24, the pair of sheaths is clamped by the pump housing 24, the sheaths have a liquid outlet half-pipe connector 12, a liquid inlet half-pipe connector 20 and a sheath main body 11, generally, the liquid outlet half-pipe connector 12 and the liquid inlet half-pipe connector 20 are integrally formed with the sheath main body 11 and are made of wear-resistant rubber, and when the pair of sheaths are fastened and aligned, the two liquid outlet half-pipe connectors 12 form a liquid outlet pipe 9 connector.
In this embodiment, as shown in fig. 6 and 7, the liquid outlet half pipe interface 12 includes an arc-shaped shell 13, an inner half pipe 15, a middle half pipe 16, sound-absorbing particles 18, and a plurality of compression springs 17, where two ends of the arc-shaped shell 13 are fixedly connected with a lining plate 14, one end of the lining plate 14 extends into the inner side of the arc-shaped shell 13, the arc-shaped shell 13 and the lining plate 14 are fixedly connected with the sheath main body 11, and the sheath main body 11 is made of wear-resistant rubber; preferably, the arc-shaped shell 13 and the lining plate 14 are integrally arranged and are made of hard materials, such as hard plastics or metals, so that the arc-shaped shell 13 and the lining plate 14 are conveniently attached to the inner wall of the pump shell 24, the clamping firmness degree of the pump shell 24 to the liquid outlet pipe 9 interface is enhanced, the inner half pipe 15 is arranged on the inner side of the arc-shaped shell 13 and is coaxially arranged with the arc-shaped shell 13, two ends of the inner half pipe 15 are fixedly connected with the lining plate 14 extending into the inner side of the arc-shaped shell 13, preferably, the inner half pipe 15 is made of wear-resistant rubber, so that the inner half pipe 15 is directly contacted with tailing slurry to resist wear on one hand, compared with a metal sheath, the noise can be reduced, the self weight and the manufacturing cost of the slurry pump 8 are reduced, the slurry conveying efficiency is improved, and the conveying energy consumption is reduced, the middle half pipe 16 is arranged between the inner half pipe 15 and the arc-shaped shell 13 and is coaxially arranged with the arc-shaped shell 13, middle half pipe 16's both ends link firmly with the inboard welt 14 that stretches into arc shell 13, middle half pipe 16 material is the soft skin of metal, is convenient for inhale the vibration impact of sound granule 18 fully absorption ore pulp transportation in-process to half pipe 15, helps the noise reduction, it fills between middle half pipe 16 and half pipe 15 to inhale sound granule 18 for absorb the vibration impact of ore pulp transportation in-process to half pipe 15, reach and inhale the sound and fall the purpose of making an uproar, when the vibration impact of the internal half pipe 15 of mobile ore pulp is great (for example conveying pressure grow suddenly), in order to avoid half pipe 15 to swell, break or inhale sound granule 18 and be crushed and lose and inhale the sound function, especially design middle half pipe 16 material for soft skin of metal makes to inhale sound granule 18 and can extrude soft skin of metal, avoid inhaling sound granule 18 and be crushed and lose and inhale the sound function, also avoided half pipe 15 to swell and wrap, The anti-pressure fluctuation energy of the liquid outlet pipe 9 is remarkably enhanced, the service life of the liquid outlet pipe 9 is prolonged, and the sound absorbing effect is good, in addition, the metal soft skin has good flexibility and is not easy to tear, the liquid outlet pipe 9 is ensured to have long service life, a plurality of compression springs 17 are uniformly distributed along the circumferential direction of the arc-shaped shell 13, each compression spring 17 is compressed or extended along the radial direction of the arc-shaped shell 13, two ends of each compression spring 17 are fixedly connected with the arc-shaped shell 13 and the middle half pipe 16 respectively, when the sound absorbing particles 18 extrude the soft metal soft skin, the metal soft skin extrudes the compression springs 17, the compression springs 17 absorb the vibration impact of the ore pulp received by the sound absorbing particles 18 on the inner half pipe 15, the metal soft skin is prevented from being broken by the top of the sound absorbing particles 18 when the vibration impact of the ore pulp on the inner half pipe 15 is large, and the safety of the middle half pipe 16 is effectively protected, while also contributing to further noise reduction.
The drain pipe 9 of this embodiment is through setting up arc shell 13, interior half- pipe 15, 16 three-layer tubular product of middle half-pipe, then including half-pipe 15, fill between half-pipe 16 in the middle of inhale sound granule 18, set up a plurality of compression spring 17 between arc shell 13, interior half-pipe 15 and absorb the vibration impact and the noise that the ore pulp transportation in-process produced drain pipe 9, the compressive shock resistance can be strong, be difficult for arousing that drain pipe 9 is sealed inefficacy, long service life, noise reduction effect is good.
In this embodiment, as shown in fig. 7, an insertion post 19 is fixedly disposed on an inner side surface of the arc-shaped housing 13, and one end of the compression spring 17 is tightly inserted and sleeved on the insertion post 19, so as to conveniently and rapidly install the compression spring 17 in place, further, in this embodiment, as shown in fig. 7, a sound insulation cotton 27 is disposed between the arc-shaped housing 13 and the middle half tube 16 to further enhance the sound absorption performance of the liquid outlet tube 9, and a mounting hole 28 for the compression spring 17 to penetrate through is disposed on the sound insulation cotton 27.
In this embodiment, the pump case 24 of the slurry pump 8 generally has a certain sound insulation function, but the end of the liquid outlet pipe 9 of the sheath is exposed outside and is not wrapped and sealed by the pump case 24, so most of the noise generated by the operation of the slurry pump 8 leaks from the end, which is the root cause that the noise generated by the operation of the slurry pump 8 adopting the rubber sheath cannot be further reduced, and the operation noise of the slurry pump 8 can be further reduced by adopting the liquid outlet pipe 9 of the sheath of this embodiment.
In this embodiment, as shown in fig. 4 and 5, the liquid inlet pipe connector 20 includes a pipe body 21 and a sleeve ring 22 tightly sleeved outside the pipe body 21, the sleeve ring 22 and the pipe body 21 are integrally disposed and are all made of wear-resistant rubber, further, the sleeve ring 22, the pipe body 21 and the sheath main body 11 are integrally formed and are all made of wear-resistant rubber, a first through hole 23 communicated with the inside of the pipe body 21 is formed on an outer circumferential surface of the sleeve ring 22, preferably, a plurality of the first through holes 23 are formed and are centrally and symmetrically distributed in the sleeve ring 22, as shown in fig. 5, an outer circumferential surface of the sleeve ring 22 in the assembled slurry pump 8 is tightly attached to an inner wall of the pump housing 24, at this time, the first through hole 23 is blocked, a second through hole 25 communicated with the outside is formed on an inner wall of the pump housing 24 close to the sleeve ring 22, when the sheath liquid inlet pipe connector 20 of the slurry pump 8 suddenly generates vacuum and is depressed, the sunken tube body 21 can drive a certain position of the outer circumferential surface of the lantern ring 22 to be separated from the inner wall of the pump shell 24, so that the through hole I23 is not blocked any more, at the moment, the through hole I23 is communicated with the outside through the through hole II 25, outside air can rapidly enter the tube body 21 through the through hole II 25 and the through hole I23, so that the sunken tube body 21 is rapidly recovered until the outer circumferential surface of the lantern ring 22 is pressed and connected with the inner wall of the pump shell 24 again, as the tube body 21 is sunken, outside air rapidly enters the tube body 21 immediately, therefore, the design can ensure that the tube body 21 is not sunken when vacuum occurs at the liquid inlet pipe interface 20 of the slurry pump 8 sheath, effectively prolong the service life of the liquid inlet pipe interface 20 of the slurry pump sheath, ensure good long-term sealing of the slurry pump sheath, and particularly under the conditions that the pulp level detection device 6 fails, the vacuum occurs at the liquid inlet pipe interface 20 of the slurry pump 8 sheath and the controller 10 cannot be timely regulated and controlled, the pipe body 21 is not sunken, so that the service life of the pipe body is prolonged, and the conveying efficiency of the slurry pump 8 is guaranteed to be stable and beneficial.
In addition, in order to solve the above problems, the invention also provides a pump station tailing conveying method, which comprises the following steps:
acquiring the pulp liquid level and the pulp concentration in the distribution tank 1 through a pulp liquid level detection device 6 and a pulp concentration detection device 7;
the controller 10 controls the flow valve 3 according to the pulp liquid level information to adjust the supply quantity of the pulp conveyed by the tailing supply pipe 2 to the distribution tank 1 and the frequency of the slurry pump 8 so as to ensure that the pulp liquid level in the distribution tank 1 is stable and does not fluctuate violently;
the controller 10 controls the control valve 5 to adjust the supply amount of the dilution liquid filled into the distribution tank 1 by the water injection pipe 4 according to the pulp concentration so as to ensure that the pulp concentration is constant.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides a pump station tailing conveying system, its characterized in that, including distribution tank and with tailing supply pipe, water injection pipe, the pipette of distribution tank intercommunication, be equipped with the flow valve on the tailing supply pipe, be equipped with the control valve on the water injection pipe, the intake of pipette intercommunication sediment stuff pump, the liquid outlet intercommunication drain pipe of sediment stuff pump, be equipped with ore pulp liquid level detection device and ore pulp concentration detection device in the distribution tank, ore pulp liquid level detection device and ore pulp concentration detection device signal connection director, the controller basis detection signal control flow valve, control valve and the action of sediment stuff pump that ore pulp liquid level detection device and ore pulp concentration detection device acquireed.
2. The pump station tailings delivery system of claim 1 wherein the slurry pump comprises a pump housing and a sheath disposed within the pump housing, the sheath having a liquid outlet half pipe interface and a liquid inlet pipe interface.
3. The pump station tailings conveying system of claim 2 wherein the effluent half pipe interface comprises: the two ends of the arc-shaped shell are fixedly connected with the lining plates, and one end of each lining plate extends into the inner side of the arc-shaped shell; the inner half pipe is arranged on the inner side of the arc-shaped shell and is coaxial with the arc-shaped shell, and two ends of the inner half pipe are fixedly connected with the lining plate extending into the inner side of the arc-shaped shell; the middle half pipe is arranged between the inner half pipe and the arc-shaped shell and is coaxial with the arc-shaped shell, and two ends of the middle half pipe are fixedly connected with the lining plate extending into the inner side of the arc-shaped shell; sound-absorbing particles filled between the middle half pipe and the inner half pipe; the compression springs are evenly distributed along the circumferential direction of the arc-shaped shell, each compression spring is compressed or extended along the radial direction of the arc-shaped shell, and two ends of each compression spring are fixedly connected with the arc-shaped shell and the middle half pipe respectively.
4. The pump station tailings conveying system of claim 3 wherein the inner side surface of the arc-shaped housing is fixedly provided with an insert column, and one end of the compression spring is tightly inserted and sleeved on the insert column.
5. The pump station tailings conveying system of claim 3 wherein the arc-shaped casing and the liner are integrally arranged and are made of hard materials; the arc-shaped shell and the lining plate are tightly attached to the inner wall of the pump shell.
6. The pump station tailings delivery system of claim 3 wherein the inner half-pipe is made of abrasion resistant rubber.
7. The pump station tailings conveying system of claim 3 wherein the middle half pipe is made of a soft metal skin.
8. The pump station tailings conveying system of claim 3 wherein soundproof cotton is disposed between the arc-shaped housing and the middle half pipe, and the soundproof cotton is provided with a mounting hole for the compression spring to penetrate through.
9. The pump station tailings conveying system of claim 2, wherein the liquid inlet pipe joint comprises a pipe body and a sleeve ring tightly sleeved outside the pipe body, and a first through hole communicated with the inside of the pipe body is formed in the outer circumferential surface of the sleeve ring; the outer circumferential surface of the lantern ring is tightly attached to the inner wall of the pump shell, and a second through hole communicated with the outside is formed in the inner wall, close to the lantern ring, of the pump shell.
10. A pump station tailings conveying method is characterized by comprising the following steps: acquiring the pulp liquid level and the pulp concentration in the distribution tank; adjusting the supply amount of the ore pulp conveyed to the distribution tank by the tailing supply pipe and the frequency of a slurry pump according to the ore pulp liquid level information; and adjusting the supply amount of the diluent filled into the distribution tank by the water injection pipe according to the pulp concentration.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115367482A (en) * | 2022-09-30 | 2022-11-22 | 德瑞洁能科技有限公司 | Efficient hydraulic remote collection and conveying system and method for granular materials |
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