CN112587965B - Uniform distribution device for flow stabilizing cylinder of central transmission thickener - Google Patents
Uniform distribution device for flow stabilizing cylinder of central transmission thickener Download PDFInfo
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- CN112587965B CN112587965B CN202011459621.8A CN202011459621A CN112587965B CN 112587965 B CN112587965 B CN 112587965B CN 202011459621 A CN202011459621 A CN 202011459621A CN 112587965 B CN112587965 B CN 112587965B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/2405—Feed mechanisms for settling tanks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/82—Combinations of dissimilar mixers
- B01F33/821—Combinations of dissimilar mixers with consecutive receptacles
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Abstract
The invention discloses a uniform distributing device of a steady flow cylinder of a central transmission thickener, which is characterized in that after kinetic energy of materials entering a circular water tank from a feeding pipe is consumed, slurry uniformly overflows from the circular water tank to a liquid outlet plate and enters a main mixing cylinder from the liquid outlet through an injection cylinder and an excess cylinder, and the materials flow into a concentration tank through an outlet cylinder by passing through a main filter plate and a main filter plate in the main mixing cylinder, so that the materials are uniformly distributed to the periphery along the steady flow cylinder, more coarse-particle materials are effectively prevented from being accumulated on one side of a feeding pipe orifice relative to other places by a rotating cage, the torque applied to a rake frame is uniform when the rake frame rotates along the rotating cage, and the service life of the rake frame is prolonged; on the other hand, after the kinetic energy of the materials entering the concentration tank is consumed, the stirring of the materials entering the concentration tank to the ore pulp in the concentration tank is greatly reduced, so that the processing capacity of the concentrator to the materials is greatly improved, the unit area of the concentrator is increased by more than 10% to the material processing capacity, and the processing effect on the slurry containing more fine particles is more obvious.
Description
Technical Field
The invention belongs to the field of additional devices of a central transmission thickener, relates to a uniform material distribution technology, and particularly relates to a uniform material distribution device of a flow stabilizing cylinder of the central transmission thickener.
Background
When a central transmission thickener used by people works normally at present, slurry enters a thickening tank through a feeding pipe and diffuses to the periphery of the thickening tank, and materials gradually sink to the inclined tank bottom by means of the gravity of the materials in the process. Meanwhile, the motor driving roller rotates around the center on the round platform on the upper edge of the concentration tank and drives the rotating cage and the rake frame to rotate together, rake teeth with angles on the rake frame scrape and collect materials precipitated at the bottom of the tank in the rotating process, so that the materials are concentrated, and clarified clear water can be recycled after flowing to the clear water tank from the upper overflow weir.
A flow stabilizing cylinder is arranged on a rotating cage of the concentrator in order to reduce the kinetic energy of materials entering a concentration tank from a feeding pipe and improve the sedimentation effect of the materials, for example, a radial flow dividing guide plate, a flow guide plate, an outer guide cylinder and an inner guide cylinder in the flow stabilizing cylinder are arranged on the high-efficiency flow stabilizing device of the central transmission concentrator with the patent number of 201010590537.X, so that the kinetic energy of the materials entering the concentration tank is reduced to a certain degree, thereby effectively improving the working efficiency of the central transmission concentrator, however, although the materials entering the flow stabilizing cylinder from the feeding pipe are limited to sink and descend in the flow stabilizing cylinder, the feeding pipe opening is fixed at one side of the flow stabilizing cylinder, the materials entering the flow stabilizing cylinder from the feeding pipe cannot be completely uniformly distributed and sedimented in the flow stabilizing cylinder, the materials entering the flow stabilizing cylinder from the feeding pipe are mainly concentrated at one side of the feeding pipe opening on the inner wall of the flow stabilizing cylinder for sedimentation, this necessarily leads to the following phenomena: on one hand, when the materials enter the steady flow cylinder and are close to one side of the feeding pipe orifice, more coarse particle materials are concentrated and settled, namely, the bottom of the rotating cage is positioned at one side of the feeding pipe orifice and gathers more coarse particle materials, and the coarse particle materials at other parts of the bottom of the rotating cage positioned at one side of the feeding pipe orifice are less or none, so that accidents such as rake lifting, speed reducer damage and even rake frame damage are easy to occur due to uneven torque received by the rake frame when the rake frame rotates along the rotating cage, the service life of the rake frame is greatly reduced, and the production cost of enterprises is increased, and time and labor are wasted; on the other hand, the existing flow stabilizing cylinder can not completely eliminate the kinetic energy of the material entering the flow stabilizing cylinder from the material inlet pipe orifice, and the material flowing into the concentration tank from the flow stabilizing cylinder still has kinetic energy, so that the sedimentation of fine particles in the material is not facilitated, the unit area production capacity of the concentration tank is reduced, the sedimentation area of the concentration tank needs to be increased, and the construction cost of the concentrator is inevitably increased; in severe cases, it is also possible to see the appearance of outwardly spreading waves on the liquid surface of the thickener, and the kinetic energy of such material can even re-agitate the settled material in the thickener, which considerably reduces the production efficiency of the thickener
Disclosure of Invention
The invention aims to provide a uniform distribution device for a flow stabilizing cylinder of a central transmission thickener, which is used for solving the problem.
The purpose of the invention can be realized by the following technical scheme:
a uniform distribution device of a steady flow cylinder of a central transmission thickener comprises a feeding pipe, a bridge, a rotating cage, a rake rack and the steady flow cylinder;
the mixing cylinder comprises an outer cylinder shell, an inner mixing cylinder, a blocking plate, an injection cylinder, an excess cylinder, a main mixing cylinder, a main filter plate, a blocking circular plate, a second filter plate, an auxiliary mixing cylinder and an outlet cylinder;
the inner mixing barrel is rotatably installed inside the outer barrel shell, a plurality of injection barrels and excess barrels are fixedly installed on one side face of the inner mixing barrel, the inner mixing barrel is cylindrical, the injection barrels and the excess barrels are circumferentially arranged along one side face of the inner mixing barrel and are installed at intervals, a blocking plate is connected between the injection barrels and the excess barrels, the injection barrels, the excess barrels and the blocking plate are surrounded into a circle, and one side face of the inner mixing barrel is divided into an inner circle portion and an outer circle portion;
the inner circle part of the inner mixing cylinder is provided with a filtering hole, the diameter of the filtering hole is the same as that of the inner circle part, and a filtering membrane covers the filtering hole;
the filter holes are communicated with the inside of the inner mixing barrel, a main mixing barrel is arranged inside the inner mixing barrel, an inlet of the main mixing barrel is connected with the filter holes, the main mixing barrel is funnel-shaped, a main filter plate is arranged in the middle of the main mixing barrel, the main filter plate is circular, and a plurality of filter holes are formed in the main filter plate;
the outer side of the main filter plate is sleeved with a blocking circular ring plate, and the blocking circular ring plate is connected with the main filter plate through a tension rope;
the bottom end of the main mixing cylinder is provided with a second filter plate, and the second filter plate is arranged at the lower end of the main filter plate;
the bottom of second filter is connected with an export section of thick bamboo.
Further, the main portion of mixing and the vice portion of mixing are divided into with the inside of interior a section of thick bamboo that mixes to main portion of mixing, be equipped with vice a section of thick bamboo that mixes in the vice portion of mixing, vice a section of thick bamboo that mixes is L shape, just the upper end that vice a section of thick bamboo that mixes is connected with an excess section of thick bamboo, the lower extreme that vice a section of thick bamboo that mixes is connected with an export section of thick bamboo.
Further, the excess cylinder comprises an upper cylinder part and a lower cylinder part, wherein the upper cylinder part comprises a fixed support, a first fixed block, a middle fixed block, a second fixed block, an elastic rope, a pulley, a sliding shaft, a limiting block and a semicircular sliding block; the upper barrel part is provided with a groove, the middle part of the bottom end of the groove is provided with a sliding shaft, the sliding shaft is welded with a sliding rail, one end of the sliding rail is provided with two limiting blocks; the slide rail is equipped with two, and two the slide rail sets up oppositely.
Furthermore, the slide rail is connected with two semicircular slide blocks in a sliding manner, the two semicircular slide blocks form a circle, and the top ends of the semicircular slide blocks are welded with pulleys; the top end of the excess cylinder is welded with a fixed support, one side of the fixed support is welded with a first fixed block, a middle fixed block and a second fixed block, and the middle fixed block is arranged between the first fixed block and the second fixed block;
the first fixed block is fixedly connected with one end of an elastic rope, and the other end of the elastic rope is wound around a pulley and fixedly connected into the middle fixed block.
Furthermore, a filtering layer is arranged at the bottom end of the groove, a passage is formed in the inner surface of the groove, the passage is communicated with the filtering layer, and the filtering layer is connected with the outlet; wherein the outlet is communicated with the auxiliary mixing barrel.
Further, the filling cylinder comprises a circular water tank, a feeding pipe, a circular pressure dividing pipe, a liquid outlet support, a liquid outlet plate and a liquid outlet;
the middle part of the circular water tank penetrates through the outlet cylinder, and the bottom end of the outlet cylinder is conical;
an annular pressure-dividing pipe is arranged on the outer side of the annular water tank, and a feeding pipe is connected to one side of the annular pressure-dividing pipe.
Furthermore, liquid outlet support columns are fixedly mounted on the upper surface of the annular water tank, the liquid outlet support columns are of a hollow steel pipe structure, four liquid outlet support columns are arranged, liquid outlet pipes are mounted in the four liquid outlet support columns, and one ends of the liquid outlet pipes are communicated with the annular water tank;
the upper ends of the four liquid outlet support columns are fixedly provided with liquid outlet plates, and liquid outlets are arranged on the liquid outlet plates;
the liquid outlet is connected with the other end of the liquid outlet pipe;
the liquid outlet plate is provided with a rotating motor, and the output end of the rotating motor is fixedly connected with the inner mixing barrel.
Furthermore, a groove is formed in the fixed ring, the other end of the blocking ring plate is embedded into the groove formed in the fixed ring, and the fixed ring is fixedly installed on the inner surface of the inner mixing cylinder.
Further, the annular pressure-dividing pipe comprises a first pressure-dividing pipe, a second pressure-dividing pipe, a third pressure-dividing pipe and a fourth pressure-dividing pipe;
the first pressure dividing pipe is connected with the feeding pipe, the tail section of the first pressure dividing pipe is connected with the second pressure dividing pipe, a one-way valve is arranged at the connecting part of the first pressure dividing pipe and the second pressure dividing pipe, the tail section of the second pressure dividing pipe is connected with the third pressure dividing pipe, a one-way valve is arranged at the connecting part of the second pressure dividing pipe and the third pressure dividing pipe, a one-way valve is arranged at the connecting part of the third pressure dividing pipe and the fourth pressure dividing pipe, the tail section of the fourth pressure dividing pipe is connected with the first pressure dividing pipe, and a partition plate is arranged at the connecting part of the fourth pressure dividing pipe and the third pressure dividing pipe;
the fourth pressure-dividing pipe is connected with the circular water tank.
Further, the one-way valve comprises a valve body, a piston rod, a pressure spring and a branch circuit;
the piston rod is connected with a piston in a sliding mode, the piston rod is fixedly installed inside the valve body, a pressure spring is installed between the piston and the valve body, and a branch is formed inside the valve body.
Compared with the prior art, the invention has the beneficial effects that:
the invention has the beneficial effects that: after the kinetic energy of the materials entering the annular water tank from the feeding pipe is consumed, slurry evenly overflows from the annular water tank to the liquid outlet plate and enters the liquid outlet from the liquid outlet and enters the main mixing cylinder through the injection cylinder and the excess cylinder, and the materials flow into the concentration tank through the main filter plate and the main filter plate in the main mixing cylinder and the outlet cylinder, so that on one hand, the materials are uniformly distributed to the periphery along the flow stabilizing cylinder, the situation that a rotating cage is positioned at one side of the feeding pipe opening and gathers more coarse-particle materials relative to other places is effectively avoided, the torque applied to the rake frame when the rake frame rotates along the rotating cage is even, and the service life of the rake frame is prolonged; on the other hand, after the kinetic energy of the materials entering the concentration tank is consumed, the stirring of the materials entering the concentration tank to the ore pulp in the concentration tank is greatly reduced, so that the processing capacity of the concentrator to the materials is greatly improved, the unit area of the concentrator is increased by more than 10% to the material processing capacity, and the processing effect on the slurry containing more fine particles is more obvious.
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 structural view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a schematic structural view of an inner mixing barrel according to the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 3;
FIG. 5 is a schematic view of the inner mixing tube structure of the present invention;
FIG. 6 is an enlarged view of the structure at B in FIG. 5;
fig. 7 is a schematic view of a bridge structure of the present invention.
FIG. 8 is a schematic view of a thickener according to the present invention.
In the figure: 1. a feeding pipe; 2. a bridge frame; 3. rotating the cage; 4. a rake rack; 5. a flow stabilizing cylinder; 6. a mixing drum; 7. filling a cylinder; 8. an outer cylindrical shell; 9. an inner mixing cylinder; 10. a baffle plate; 11. an injection cylinder; 12. an excess cylinder; 13. a main mixing cylinder; 14. a main filter plate; 15. a blocking circular ring plate; 16. a second filter plate; 17. an auxiliary mixing cylinder; 18. an outlet barrel; 19. an upper cylinder part; 20. a lower cylinder part; 21. fixing a bracket; 22. a first fixed block; 23. a middle fixing block; 24. a second fixed block; 25. an elastic cord; 26. a pulley; 27. a sliding shaft; 28. a limiting block; 29. a semicircular slide block; 30. a circular water tank; 31. an annular pressure-dividing pipe; 32. a liquid outlet support column; 33. a liquid outlet plate; 34. a liquid outlet; 35. a first pressure divider pipe; 36. a second pressure divider pipe; 37. a third pressure dividing pipe; 38. a fourth pressure dividing pipe; 39. a one-way valve; 40. a valve body; 41. a pressure-dividing piston; 42. a piston rod; 43. a pressure spring; 44. together with the branches.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of 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 obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Thus, the detailed description of the embodiments of the present invention provided in the following drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention.
As shown in fig. 1-8, a steady flow cylinder uniform distribution device of a central transmission thickener comprises a feeding pipe 1, a bridge frame 2, a rotating cage 3, a rake frame 4 and a steady flow cylinder 5;
the flow stabilizing cylinder 5 comprises a mixing cylinder 6 and an injection cylinder 7, the mixing cylinder 6 is arranged at the upper end of the injection cylinder 7, and the mixing cylinder 6 comprises an outer cylinder shell 8, an inner mixing cylinder 9, a barrier plate 10, an injection cylinder 11, an excess cylinder 12, a main mixing cylinder 13, a main filter plate 14, a barrier circular ring plate 15, a second filter plate 16, an auxiliary mixing cylinder 17 and an outlet cylinder 18;
the inner mixing barrel 9 is rotatably installed inside the outer barrel shell 8, a plurality of injection barrels 11 and excess barrels 12 are fixedly installed on one side face of the inner mixing barrel 9, the inner mixing barrel 9 is cylindrical, the injection barrels 11 and the excess barrels 12 are circumferentially arranged along one side face of the inner mixing barrel 9, the excess barrels 12 and the injection barrels 11 are installed at intervals, a blocking plate 10 is connected between the injection barrels 11 and the excess barrels 12, the injection barrels 11, the excess barrels 12 and the blocking plate 10 form a circle in a surrounding mode, and one side face of the inner mixing barrel 9 is divided into an inner circle portion and an outer circle portion;
the inner circle part of the inner mixing cylinder 9 is provided with a filtering hole, the diameter of the filtering hole is the same as that of the inner circle part, and a filtering membrane is covered on the filtering hole;
the filter holes are communicated with the inside of the inner mixing barrel 9, wherein a main mixing barrel 13 is arranged inside the inner mixing barrel 9, the inlet of the main mixing barrel 13 is connected with the filter holes, the main mixing barrel 13 is funnel-shaped, a main filter plate 14 is arranged in the middle of the main mixing barrel 13, the main filter plate 14 is circular, and a plurality of filter holes are formed in the main filter plate 14;
the outer side of the main filter plate 14 is sleeved with a blocking circular ring plate 15, and the blocking circular ring plate 15 is connected with the main filter plate 14 through a tension rope;
a groove is formed in the fixed ring, the other end of the blocking ring plate 15 is embedded into the groove formed in the fixed ring, and the fixed ring is fixedly arranged on the inner surface of the inner mixing barrel 9;
the bottom end of the main mixing cylinder 13 is provided with a second filter plate 16, and the second filter plate 16 is arranged at the lower end of the main filter plate 14;
the bottom end of the second filter plate 16 is connected with the outlet barrel 18;
in the specific implementation of the present invention, the main mixing barrel 13 divides the interior of the inner mixing barrel 9 into a main mixing part and an auxiliary mixing part, the auxiliary mixing part is internally provided with an auxiliary mixing barrel 17, the auxiliary mixing barrel 17 is L-shaped, the upper end of the auxiliary mixing barrel 17 is connected with the excess barrel 12, the lower end of the auxiliary mixing barrel 17 is connected with the outlet barrel 18, further, the excess barrel 12 comprises an upper barrel part 19 and a lower barrel part 20, wherein the upper barrel part 19 comprises a fixed support 21, a first fixed block 22, a middle fixed block 23, a second fixed block 24, an elastic rope 25, a pulley 26, a sliding shaft 27, a limit block 28 and a semicircular slider 29; the upper barrel part 19 is provided with a groove, the middle part of the bottom end of the groove is provided with a sliding shaft 27, the sliding shaft 27 is welded with a sliding rail, one end of the sliding rail is provided with two limiting blocks 28, and the number of the limiting blocks 28 is two; the two slide rails are arranged oppositely, preferably, the slide rails are connected with semicircular slide blocks 29 in a sliding manner, the number of the semicircular slide blocks 29 is two, the two semicircular slide blocks 29 form a circle, and the top ends of the semicircular slide blocks 29 are welded with pulleys 26; the top end of the excess cylinder 12 is welded with a fixed support 21, one side of the fixed support 21 is welded with a first fixed block 22, a middle fixed block 23 and a second fixed block 24, and the middle fixed block 23 is arranged between the first fixed block 22 and the second fixed block 24;
one end of an elastic rope 25 is fixedly connected to the first fixing block 22, the other end of the elastic rope 25 is fixedly connected to the middle fixing block 23 by bypassing the pulley 26, most preferably, a filtering layer is arranged at the bottom end of the groove, a passage is formed in the inner surface of the groove, the passage is communicated with the filtering layer, and the filtering layer is connected with the outlet; the outlet is communicated with the auxiliary mixing barrel 17, and the filling barrel 7 comprises an annular water tank 30, a feeding pipe 1, an annular pressure dividing pipe 31, a liquid outlet support 32, a liquid outlet plate 33 and a liquid outlet 34; the middle part of the circular water tank 30 passes through the outlet cylinder 18, and the bottom end of the outlet cylinder 18 is conical; an annular pressure-dividing pipe 31 is arranged on the outer side of the annular water tank 30, and a feeding pipe 1 is connected to one side of the annular pressure-dividing pipe 31.
In the embodiment of the invention, the upper surface of the circular water tank 30 is fixedly provided with the liquid outlet support columns 32, the liquid outlet support columns 32 are of a hollow steel pipe structure, four liquid outlet support columns 32 are arranged, liquid outlet pipes are arranged in the four liquid outlet support columns 32, and one ends of the liquid outlet pipes are communicated with the circular water tank 30;
preferably, the upper ends of the four liquid outlet support columns 32 are fixedly provided with liquid outlet plates 33, and the liquid outlet plates 33 are provided with liquid outlets 34; the liquid outlet 34 is connected with the other end of the liquid outlet pipe; the liquid outlet plate 33 is provided with a rotating motor, and the output end of the rotating motor is fixedly connected with the inner mixing barrel 9.
The annular pressure-dividing pipe 31 includes a first pressure-dividing pipe 35, a second pressure-dividing pipe 36, a third pressure-dividing pipe 37, and a fourth pressure-dividing pipe 38;
the first pressure dividing pipe 35 is connected with the feeding pipe 1, the tail section of the first pressure dividing pipe 35 is connected with the second pressure dividing pipe 36, a one-way valve 39 is arranged at the connecting part, the tail section of the second pressure dividing pipe 36 is connected with the third pressure dividing pipe 37, the connecting part is provided with the one-way valve 39, the tail section of the third pressure dividing pipe 37 is connected with the fourth pressure dividing pipe 38, the connecting part is provided with the one-way valve 39, the tail section of the fourth pressure dividing pipe 38 is connected with the first pressure dividing pipe 35, and a partition plate is arranged at the connecting part; the fourth pressure dividing pipe 38 is connected with the annular water tank 30, and the one-way valve 39 comprises a valve body 40, a pressure dividing piston 41, a piston rod 42, a pressure spring 43 and a connecting branch 44;
wherein, sliding connection has partial pressure piston 41 on the piston rod 42, and piston rod 42 fixed mounting installs the inside at valve body 40, installs pressure spring 43 between partial pressure piston 41 and the valve body 40, and the inside of valve body 40 is seted up together with branch road 44.
When the invention is implemented, a switch of the feeding pipe 1 is opened, materials enter the annular water tank 30 along the feeding pipe 1 through the first pressure dividing pipe 35, the second pressure dividing pipe 36, the third pressure dividing pipe 37 and the fourth pressure dividing pipe 38, wherein the one-way valve 39 is used for carrying out pressure balance on the materials, specifically, when the thrust of the materials is greater than the elastic force of the pressure spring 43, the pressure dividing piston 41 moves towards the direction close to the bottom of the valve body 40 along the piston rod 42, namely the direction of the thrust, and at the moment, the materials enter the next pressure dividing pipe along with the branch 44;
furthermore, when the circular water tank 30 is filled with materials, the materials flow into the inner circular portion of the inner mixing cylinder 9 along the liquid outlet pipe in the liquid outlet support 32 through the liquid outlet 34 on the liquid outlet plate 33, in the specific implementation of the invention, preferably, the power supply of the rotating motor is switched on at this time, the rotating motor drives the inner mixing barrel 9 to rotate at a high speed, at this moment, the materials are mixed secondarily at the inner circle part, flow into the main mixing barrel 13 through the filtering holes, when the material is too much, the material will not be injected into the barrel 11 and the excess barrel 12, at this time, the semicircular slide block 29 on the excess barrel 12 is pressed by the material to slide along the sliding shaft 27 in the pressure direction, at this time, the material flows into the auxiliary mixing barrel 17 through the passage, at this time, the voltage of the rotating motor is increased, the rotating motor rotates at a high speed to drive the blocking circular ring plate 15 to be embedded into a groove formed in the fixed circular ring in a rotating mode, so that the auxiliary mixing barrel 17 is connected with the outlet barrel 18; so that the fully mixed material flows into the concentration tank through the outlet cylinder 18;
it should be noted that, when the present invention is embodied, the rotating motor is a speed-regulating motor, and the speed-regulating motor mainly includes a stator, a rotor, a moving shaft, a transmission mechanism, a controller and a speed measuring device, the stator and the rotor are correspondingly disposed, preferably, the stator is connected with one end of the moving shaft, the moving shaft is connected with the transmission mechanism and the parallel guide rails, and moves along the axial direction (i.e. the direction consistent with the axial lead of the rotor) under the driving of the transmission mechanism, specifically, the moving shaft has a horizontal section and a bending section, the end of the horizontal section is connected with the stator, the lower end of the bending section of the moving shaft can be embedded between the parallel guide rails, and the controller is connected with the transmission mechanism.
In the technical scheme, three-phase symmetrical alternating current is introduced into the stator to generate a rotating magnetic field in the air gap, the magnetic field generates induction current in the rotor, and the charged rotor is acted by electromagnetic force in the rotating magnetic field to rotate the rotor; under the control of the controller, the transmission mechanism drives the moving shaft to move along the horizontal axial direction, so as to drive the stator to move along with the moving shaft, the relative position of the stator and the rotor is changed, the electromagnetic power transmitted to the rotor side by the stator magnetic field is changed by adjusting the relative position of the rotor and the stator in the axial direction, the size of the electromagnetic torque on the rotor side is adjusted, the change of the rotating speed is realized, and the purposes of motor speed regulation and energy conservation are achieved.
Specifically, the matching structure of the stator and the rotor has two types of drum type and disc type, wherein the drum type is: the stator comprises a cylindrical body and an end cover arranged at one end of the cylindrical body, the movable shaft is connected with the end cover, and the rotor is positioned in the cylindrical body; the rotor includes a cylindrical rotor row formed by arranging a plurality of copper bars (or aluminum bars) and end rings connected to both ends of the rotor row, the rotor row is arranged in a circle as windings, and is welded between the two end rings, so that a short circuit loop is formed between the windings.
The stator is introduced with a synchronous rotating magnetic field generated by three-phase symmetrical alternating current, induction current is generated in a rotor winding, and the electrified rotor is acted by electromagnetic force in the rotating magnetic field to generate electromagnetic torque so as to rotate the rotor; the controller controls the action of the transmission mechanism, the transmission mechanism drives the moving shaft to move along the horizontal axial direction, the axial position of the stator is adjusted, the axial relative displacement with the rotor is realized, and when all parts of the rotor are surrounded by the stator, the magnetic field coupling of the stator and the rotor is maximum, the output torque is maximum, and the rotating speed is highest; when the rotor is completely moved out, the magnetic field coupling of the stator and the rotor is as follows, the torque is as follows, and the rotating speed is also as follows. Therefore, the speed regulation purpose is achieved by adjusting the interactive magnetic field between the stator and the rotor and changing the transmitted energy.
The structure that stator and rotor disk cooperation do: the stator is a stator disc with an open slot on the surface, a three-phase stator winding is embedded in the open slot, and the stator winding specifically comprises A, X; B. y; and C, Z, wherein A, B, C is a terminal; the stator disc is connected with the moving shaft; the rotor is a rotor disc, in particular an aluminum disc, and the aluminum disc and the stator disc are arranged correspondingly. Three-phase symmetrical alternating current is introduced into the stator winding, a synchronous rotating magnetic field is induced in the air gap, the magnetic field penetrates through the rotor disc, eddy current is generated on the rotor disc, and the eddy current generates torque under the action of the magnetic field force to drive the rotor disc to rotate. The larger the magnetic field force, the larger the eddy currents and the higher the rotor disc speed. The transmission mechanism drives the movable shaft to move horizontally, changes the axial position of the stator along the motor, adjusts the distance between the stator and the rotor, changes the magnetic field intensity, and finally realizes the speed regulation and energy conservation of the motor.
The number of the pole pairs of the stator is multiple, of course, one pole pair can also be used, and the number is determined according to the rated rotating speed of the motor.
Specifically, the driver comprises a transmission mechanism and parallel guide rails, the moving shaft comprises a horizontal section and a bending section which are integrally formed, the end part of the horizontal section is connected with the stator, the transmission mechanism is connected with the bending section of the moving shaft to drive the moving shaft to move along the axial direction of the horizontal section, the lower end of the bending section of the moving shaft is embedded between the parallel guide rails and can move between the parallel guide rails, and the transmission mechanism is connected with the controller. The lower end of the moving shaft is embedded between the parallel guide rails and moves along the horizontal axial direction of the moving shaft under the driving of the transmission mechanism. The movable shaft moves horizontally and axially under the drive of the transmission mechanism, and the movable shaft drives the stator in the speed regulating motor to move axially so as to adjust the relative position of the stator and the rotor.
Generally, the speed measuring device is arranged on the output shaft of the rotor, the speed measuring device is connected with the controller, the speed measuring device can measure the rotating speed of the rotor, the controller compares the rotating speed information of the rotor with a target rotating speed, after calculation, the transmission mechanism is controlled to move axially according to a control instruction, so that the moving shaft is driven to move axially, the axial relative position of the stator and the rotor is adjusted, the speed of the motor is adjusted, under the control of the controller, the transmission mechanism drives the moving shaft to move axially in a horizontal section, the stator is driven to move axially along with the moving shaft, the relative position of the stator and the rotor is changed, the electromagnetic power transmitted to the rotor side by the magnetic field of the stator is changed by adjusting the relative position of the rotor and the stator on the axial line, the size of the electromagnetic torque on the rotor side is adjusted, the change of the rotating speed is realized, and the purposes of speed regulation and energy conservation of the motor are achieved Easy to realize, no special limitation to the application field, low power consumption and more energy saving.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are 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 one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The specific meanings of the above terms in the present invention can be understood in specific cases by those skilled in the art; the preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. A uniform distribution device of a steady flow cylinder of a central transmission thickener is characterized in that the thickener comprises a feeding pipe (1), a bridge (2), a rotating cage (3), a rake rack (4) and a steady flow cylinder (5);
the flow stabilizing cylinder (5) comprises a mixing cylinder (6) and a filling cylinder (7), the mixing cylinder (6) is arranged at the upper end of the filling cylinder (7), and the mixing cylinder (6) comprises an outer cylinder shell (8), an inner mixing cylinder (9), a barrier plate (10), an injection cylinder (11), an excess cylinder (12), a main mixing cylinder (13), a main filter plate (14), a barrier circular ring plate (15), a second filter plate (16), an auxiliary mixing cylinder (17) and an outlet cylinder (18);
the inner mixing cylinder (9) is rotatably mounted inside the outer cylinder shell (8), a plurality of injection cylinders (11) and excess cylinders (12) are fixedly mounted on one side face of the inner mixing cylinder (9), the inner mixing cylinder (9) is cylindrical, the injection cylinders (11) and the excess cylinders (12) are circumferentially arranged along one side face of the inner mixing cylinder (9), the excess cylinders (12) and the injection cylinders (11) are mounted at intervals, a barrier plate (10) is connected between the injection cylinders (11) and the excess cylinders (12), the injection cylinders (11), the excess cylinders (12) and the barrier plate (10) form a circle, and one side face of the inner mixing cylinder (9) is divided into an inner circle part and an outer circle part;
the inner circle part of the inner mixing cylinder (9) is provided with a filtering hole, the diameter of the filtering hole is the same as that of the inner circle part, and a filtering membrane covers the filtering hole;
the filter holes are communicated with the inside of the inner mixing barrel (9), wherein a main mixing barrel (13) is arranged inside the inner mixing barrel (9), an inlet of the main mixing barrel (13) is connected with the filter holes, the main mixing barrel (13) is funnel-shaped, a main filter plate (14) is arranged in the middle of the main mixing barrel (13), the main filter plate (14) is circular, and a plurality of filter holes are formed in the main filter plate (14);
the outer side of the main filter plate (14) is sleeved with a blocking circular ring plate (15), and the blocking circular ring plate (15) is connected with the main filter plate (14) through a tension rope;
the bottom end of the main mixing cylinder (13) is provided with a second filter plate (16), and the second filter plate (16) is arranged at the lower end of the main filter plate (14);
the bottom end of the second filter plate (16) is connected with an outlet cylinder (18);
the main mixing barrel (13) divides the interior of the inner mixing barrel (9) into a main mixing part and an auxiliary mixing part, an auxiliary mixing barrel (17) is arranged in the auxiliary mixing part, the auxiliary mixing barrel (17) is L-shaped, the upper end of the auxiliary mixing barrel (17) is connected with the excess barrel (12), and the lower end of the auxiliary mixing barrel (17) is connected with the outlet barrel (18);
the excess cylinder (12) comprises an upper cylinder part (19) and a lower cylinder part (20), wherein the upper cylinder part (19) comprises a fixed support (21), a first fixed block (22), a middle fixed block (23), a second fixed block (24), an elastic rope (25), a pulley (26), a sliding shaft (27), a limiting block (28) and a semicircular sliding block (29); the upper barrel part (19) is provided with a groove, the middle part of the bottom end of the groove is provided with a sliding shaft (27), the sliding shaft (27) is welded with a sliding rail, one end of the sliding rail is provided with two limiting blocks (28), and the number of the limiting blocks (28) is two; the number of the slide rails is two, and the two slide rails are oppositely arranged;
the sliding rail is connected with two semicircular sliding blocks (29) in a sliding mode, the two semicircular sliding blocks (29) are arranged and form a circle, and the top end of each semicircular sliding block (29) is welded with a pulley (26); the top end of the excess cylinder (12) is welded with a fixed support (21), one side of the fixed support (21) is welded with a first fixed block (22), a middle fixed block (23) and a second fixed block (24), and the middle fixed block (23) is arranged between the first fixed block (22) and the second fixed block (24);
one end of an elastic rope (25) is fixedly connected to the first fixing block (22), and the other end of the elastic rope (25) is fixedly connected into the middle fixing block (23) by winding a pulley (26);
the filling cylinder (7) comprises a circular water tank (30), a feeding pipe (1), an annular pressure dividing pipe (31), a liquid outlet support column (32), a liquid outlet plate (33) and a liquid outlet (34);
the middle part of the circular water tank (30) penetrates through the outlet barrel (18), and the bottom end of the outlet barrel (18) is conical;
an annular pressure-dividing pipe (31) is arranged on the outer side of the annular water tank (30), and a feeding pipe (1) is connected to one side of the annular pressure-dividing pipe (31);
a liquid outlet support column (32) is fixedly arranged on the upper surface of the annular water tank (30), the liquid outlet support columns (32) are of a hollow steel pipe structure, four liquid outlet support columns (32) are arranged, liquid outlet pipes are arranged in the four liquid outlet support columns (32), and one end of each liquid outlet pipe is communicated with the annular water tank (30);
the upper ends of the four liquid outlet support columns (32) are fixedly provided with liquid outlet plates (33), and liquid outlets (34) are arranged on the liquid outlet plates (33);
the liquid outlet (34) is connected with the other end of the liquid outlet pipe;
the liquid outlet plate (33) is provided with a rotating motor, and the output end of the rotating motor is fixedly connected with the inner mixing cylinder (9).
2. The uniform distribution device for the flow stabilizing cylinder of the central transmission concentrator as claimed in claim 1, wherein the bottom end of the groove is provided with a filter layer, and the inner surface of the groove is provided with a passage, the passage is communicated with the filter layer, and the filter layer is connected with the outlet; wherein the outlet is communicated with the auxiliary mixing cylinder (17).
3. The uniform distribution device for the steady flow cylinder of the central transmission thickener according to claim 2, wherein the fixed ring is provided with a groove inside, the other end of the blocking ring plate (15) is embedded into the groove inside the fixed ring, and the fixed ring is fixedly arranged on the inner surface of the inner mixing cylinder (9).
4. The uniform distribution device of the flow stabilizing cylinder of the center drive concentrator according to claim 3, wherein the annular pressure dividing pipe (31) comprises a first pressure dividing pipe (35), a second pressure dividing pipe (36), a third pressure dividing pipe (37) and a fourth pressure dividing pipe (38);
the first pressure dividing pipe (35) is connected with the feeding pipe (1), the tail section of the first pressure dividing pipe (35) is connected with the second pressure dividing pipe (36), a one-way valve (39) is arranged at the connecting part, the tail section of the second pressure dividing pipe (36) is connected with the third pressure dividing pipe (37), the connecting part is provided with the one-way valve (39), the tail section of the third pressure dividing pipe (37) is connected with the fourth pressure dividing pipe (38), the connecting part is provided with the one-way valve (39), the tail section of the fourth pressure dividing pipe (38) is connected with the first pressure dividing pipe (35), and the connecting part is provided with a partition plate;
the fourth pressure distribution pipe (38) is connected with the annular water tank (30).
5. The flow-stabilizing cylinder uniform distribution device of the central transmission concentrator according to claim 4, wherein the one-way valve (39) comprises a valve body (40), a pressure-dividing piston (41), a piston rod (42), a pressure spring (43) and a branch (44);
the pressure-dividing valve is characterized in that a pressure-dividing piston (41) is connected to the piston rod (42) in a sliding mode, the piston rod (42) is fixedly installed in the valve body (40), a pressure spring (43) is installed between the pressure-dividing piston (41) and the valve body (40), and a branch (44) is arranged in the valve body (40).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011459621.8A CN112587965B (en) | 2020-12-11 | 2020-12-11 | Uniform distribution device for flow stabilizing cylinder of central transmission thickener |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011459621.8A CN112587965B (en) | 2020-12-11 | 2020-12-11 | Uniform distribution device for flow stabilizing cylinder of central transmission thickener |
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| CN112587965B true CN112587965B (en) | 2022-04-19 |
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| WO2013096967A1 (en) * | 2011-12-22 | 2013-06-27 | Flsmidth A/S | Variable flow self-diluting feedwell system |
| CN204083386U (en) * | 2014-08-21 | 2015-01-07 | 张树利 | A kind of check valve |
| CN104826372A (en) * | 2015-04-29 | 2015-08-12 | 淮北市中芬矿山机器有限责任公司 | Material evenly distributing device of flow stabilizing cylinder of central transmission thickener |
| CN207734694U (en) * | 2017-11-28 | 2018-08-17 | 江苏力禾颜料有限公司 | A kind of band filter distribution device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20140175020A1 (en) * | 2012-12-26 | 2014-06-26 | Flsmidth A/S | Variable flow self-diluting feedwell system |
| CN103263792A (en) * | 2013-06-05 | 2013-08-28 | 北方重工集团有限公司 | Feeding device for thickener |
| CN110898474A (en) * | 2019-12-11 | 2020-03-24 | 淮北重科矿山机器有限公司 | Ore pulp distribution guiding device |
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2020
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013096967A1 (en) * | 2011-12-22 | 2013-06-27 | Flsmidth A/S | Variable flow self-diluting feedwell system |
| CN204083386U (en) * | 2014-08-21 | 2015-01-07 | 张树利 | A kind of check valve |
| CN104826372A (en) * | 2015-04-29 | 2015-08-12 | 淮北市中芬矿山机器有限责任公司 | Material evenly distributing device of flow stabilizing cylinder of central transmission thickener |
| CN207734694U (en) * | 2017-11-28 | 2018-08-17 | 江苏力禾颜料有限公司 | A kind of band filter distribution device |
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