CN112855054B - Magnetic suspension driving rotary vibrating screen with net cleaning function - Google Patents
Magnetic suspension driving rotary vibrating screen with net cleaning function Download PDFInfo
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- CN112855054B CN112855054B CN202110313289.2A CN202110313289A CN112855054B CN 112855054 B CN112855054 B CN 112855054B CN 202110313289 A CN202110313289 A CN 202110313289A CN 112855054 B CN112855054 B CN 112855054B
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- magnetic suspension
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- 239000000725 suspension Substances 0.000 title claims abstract description 31
- 238000004140 cleaning Methods 0.000 title claims abstract description 23
- 238000009434 installation Methods 0.000 claims description 40
- 239000007788 liquid Substances 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 2
- 238000012216 screening Methods 0.000 abstract description 10
- 239000002245 particle Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 abstract 2
- 238000009825 accumulation Methods 0.000 abstract 1
- 239000004744 fabric Substances 0.000 description 22
- 238000005553 drilling Methods 0.000 description 14
- 239000012530 fluid Substances 0.000 description 14
- 238000005339 levitation Methods 0.000 description 6
- 238000000926 separation method Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 3
- 239000007790 solid phase Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
- E21B21/065—Separating solids from drilling fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/29—Filters with filtering elements which move during the filtering operation the movement of the filter elements being a combination of movements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/70—Filters with filtering elements which move during the filtering operation having feed or discharge devices
- B01D33/72—Filters with filtering elements which move during the filtering operation having feed or discharge devices for feeding
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- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical & Material Sciences (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses a magnetic suspension driving rotary vibrating screen with a screen cleaning function, which comprises a screen cover, an upper screen box body, a lower screen box body, a screen driving assembly, a magnetic suspension driving eccentric block assembly, a screen box body bottom cover, a rubber spring, a base and an ear seat bolt connecting assembly, wherein the structure utilizes an electrified solenoid and an electromagnet moving block to generate electromagnetic force, the electromagnetic force acts on the electromagnetic solenoid to rotate, the eccentric block generates eccentric force to vibrate, and the screen driving assembly generates up-and-down movement through charging and discharging of an electromagnet to drive the screen to draw in towards the center and expand towards the periphery; the vibrating screen has the advantages of stable operation, compact structure, long service life of the screen, easy replacement, higher screening efficiency and precision, good particle screen penetrating effect, difficult accumulation of materials, good screen cleaning effect, high screen penetrating efficiency, small occupied area, convenient movement, high customization degree, closed space, difficult leakage, continuous operation and high production benefit.
Description
Technical Field
The invention relates to the technical field of solid-liquid separation equipment, in particular to a magnetic suspension driving rotary vibrating screen with a net cleaning function.
Background
The drilling fluid vibrating screen is first-stage solid control equipment of a drilling fluid purifying system, and is mainly used for removing rock debris and other harmful solid phase particles in the drilling fluid and recycling the drilling fluid with high cost. Most vibrating screens in the prior art adopt an exciting motor to generate exciting force, a rectangular screen is selected, the exciting force is synthesized to form a certain track on the screen surface, a large particle solid phase is removed at the low end of vibration, and a small-size solid phase and drilling fluid flow through the screen surface to enter a circulating system again. The above-mentioned majority of vibrating screens are disadvantageous in that the regular motion form of the screen keeps the inertia force borne by the particles unchanged, the probability of blocking and blocking the screen is increased, if the vibration frequency and the vibration amplitude are simply increased, the inertia force borne by the critical particles is increased to a certain extent, but the impact of the material on the screen surface on the screen is increased, and the service life of the screen is shortened.
The rotary screen in the prior art is not used in the technical field of drilling fluid, and the prior art cannot screen the drilling fluid, so that efficient work and screen cleaning are considered.
The rotary vibrating screen is a screening device in a simulated manual screening mode, drilling fluid is fed from the screen cover and is dispersed around the screen, drilling fluid and small particles fall down through the screen, large particles move towards the edge of the screen along with the swinging motion of the screen surface, the vertical vibration amplitude is small, the impact on the screen is small, and compared with the traditional vibrating screen, the rotary vibrating screen has higher screening efficiency.
Disclosure of Invention
In order to ensure efficient operation of the vibrating screen and clean the screen cloth, the invention provides the magnetic suspension driving rotary vibrating screen with the screen cleaning function, an excitation motor and motor seat accessories are abandoned, an eccentric driving mode is utilized, a magnetic suspension technology is combined, a driving device is skillfully installed at the bottom of a screen box, the structural design is more compact, and meanwhile, the driving device adopts a magnetic rail design, so that the screen box operates more stably, the problem that the screen cloth of the conventional drilling fluid vibrating screen is difficult to clean is solved, the screen cloth can be cleaned effectively, the cleaning efficiency is high, the effect is good, continuous operation can be realized, and the service life of the screen cloth is longer.
The technical scheme for solving the technical problems is as follows:
A magnetic suspension driving rotary vibrating screen with a screen cleaning function comprises an upper screen box body with a plurality of screens, a screen driving assembly with an electrified solenoid, and a magnetic suspension driving eccentric block assembly with an annular guide magnet, wherein the electrified solenoid is provided with an embedded electromagnet moving block; the magnetic suspension driving eccentric block assembly is annular, the screen driving assembly is located in the annular center, a plurality of screens are distributed in a radial mode, each screen is provided with a connecting component used for hinging and supporting vibration rods, the bottoms of the plurality of supporting vibration rods are hinged to the top end of the screen driving assembly and are connected in a radial mode, the screens are driven by the screen driving assembly to be synchronously folded or unfolded relative to the upper screen box body, the folding or unfolding mode is umbrella-shaped to be shrunk and unfolded, electromagnetic force is generated by utilizing an electrified solenoid, the screen driving assembly is driven by the magnetic suspension driving eccentric block assembly to move up and down in the vertical direction, the screen driving assembly drives the connecting component of the screens, and the screens are folded towards the center along with the connecting component and move to the periphery, so that the horizontal direction of the screens is moved back and forth by utilizing electromagnet charging and discharging, and then the cleaning effect is achieved.
In a preferred embodiment of the present invention, the upper screen box has a ring structure, and the upper screen box is provided with a screen box installation frame radially connected to the inner side of the ring structure from the center of the ring, the connection part is a screen fan-shaped installation frame connected to the edge of the screen, the screen box installation frame is provided with a chute clamped into the screen fan-shaped installation frame, the screen box installation frame divides the ring of the upper screen box into a plurality of fan-shaped areas, so that when the plurality of screens are folded, the screen and the screen fan-shaped installation frame together fill the fan-shaped areas without gaps, and liquid passes through the screen only, thereby facilitating the extraction of the screen from the upper screen box, and the screen can be replaced by direct extraction.
In a preferred embodiment of the invention, the screen box mounting framework is provided with a buffer connection part for the buffer connection part, the buffer connection part comprises a spring net and rubber, the rubber is arranged on the top and bottom sides of the spring net, and when a plurality of screens are folded, the screen fan-shaped mounting framework is pressed on two sides of the spring net and compresses the spring net and the rubber, so that the screen fan-shaped mounting framework is subjected to the function of buffer.
In the preferred embodiment of the invention, the upper screen box body is a plurality of separated structures which are combined to form an annular structure, the adjacent separated structures are connected through the lug bolt connection assembly, when the rotary vibrating screen breaks down, one-fourth screen box body can be pulled out for overhauling the fault, the separated structure comprises an upper screen box outer shell and an upper screen box inner shell, the structure of the box body is divided into an inner part and an outer part, unfiltered sediment is effectively prevented from flowing into a lower layer, the upper screen box outer shell is provided with a pulling window for inserting or pulling out the upper screen box body, when the screen is damaged and needs to be replaced, the screen can be conveniently and rapidly pulled out from the outer side of the upper screen box body, and the screen is convenient to replace.
In a preferred embodiment of the invention, the screen driving assembly comprises a supporting vibration disc, a photoelectric sleeve, an embedded electromagnet moving block and a linear sliding bearing, wherein the supporting vibration disc and the linear sliding bearing are respectively connected to the top end and the bottom end of the photoelectric sleeve, the top end of an electrified solenoid is connected to the linear sliding bearing, a cooling fan is further arranged at the bottom end of the electrified solenoid, driving force is provided for rotating the vibrating screen, and meanwhile, movement is limited in the vertical direction, so that the driving process is more stable.
In a preferred embodiment of the present invention, the magnetic suspension driving eccentric block assembly further includes a screen box support, an eccentric block and a guide rail, wherein the screen box support is annular, the bottom of the screen box support is concavely provided with an annular groove, the guide rail is annular and is arranged in the annular groove of the screen box support, the annular outer side of the annular guide magnet leans against the guide rail, and the eccentric block is arc-shaped and is arranged and fixed on the inner side of the annular guide magnet; the electromagnetic levitation force, the guiding force and the driving force generated by the long stator linear synchronous motor, namely the structure formed by the screen driving assembly and the magnetic levitation driving eccentric block assembly, realize that the annular guiding magnet drives the eccentric block to rotate, achieve the eccentric effect and cause vibration.
In a preferred embodiment of the invention, the upper screen box shell is further provided with a feed inlet for liquid to enter, the feed inlet is positioned above the drainage window, so that the liquid mixed with silt can enter the rotary vibrating screen conveniently, the top of the upper screen box shell is further connected with a screen cover, and the top of the screen cover is provided with an air circulation through hole for keeping internal and external air circulation.
In a preferred embodiment of the present invention, the rotary vibrating screen further includes a screen box bottom cover, a rubber spring and a base, the bottom cover is connected to the bottom of the screen box support, the screen box bottom cover is provided with a through hole through which the liquid passes, and the plurality of rubber springs are connected between the screen box bottom cover and the base, so that the rotary vibrating screen can perform stable vibration, and further solid-liquid separation is performed.
In a preferred embodiment of the present invention, the rotary vibrating screen further includes a lower screen box, the lower screen box includes an annular outer ring and a frame structure connected in the annular shape, the frame structure is in a radial shape, a bearing hole is provided at a radial center of the frame structure, the screen driving assembly is disposed in the bearing hole and can move up and down relative to the lower screen box, the movement of the screen driving assembly is limited in a linear direction, the bottom of the outer ring is provided with an annular space, the magnetic suspension driving eccentric block assembly is disposed in the annular space, a stepped groove is provided at the top of the lower screen box, the upper screen box sits on the stepped groove, a circle of rubber is provided on the stepped groove for sealing, and the rotary vibrating screen is tightly sealed to avoid liquid leakage.
In the preferred embodiment of the invention, the screen box installation framework is a screen box cross installation framework, the screen box cross installation framework is cross-shaped, 4 screen meshes, the screen mesh fan-shaped installation framework and the supporting vibration rod are respectively arranged, the screen meshes and the fan-shaped areas are all in a 1/4 circular fan shape, and the screen meshes are synchronously folded and unfolded through 4 separated and radial structures, so that the screen meshes are effectively cleaned, and the cleaning effect is good.
The invention has the following beneficial effects:
(1) The screening efficiency is adjustable and controllable; (2) The screen cloth is replaced and cleaned conveniently, quickly and labor-saving; (3) the screen box body can be separated and pulled out, so that the maintenance and the inspection are convenient; (4) the screen cloth cleaning efficiency is high, and the screening effect is good; (5) continuous operation and high production benefit; and (6) the maintenance is simple and convenient.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be considered as limiting the scope.
FIG. 1 is an exploded view of a magnetically levitated driven rotary vibrating screen with a screen cleaning function of the present invention;
FIG. 2 is a schematic diagram of a combination of magnetically levitated driven rotary shakers with a screen cleaning function in accordance with the present invention;
FIG. 3 is a schematic perspective view of an up-screen box of the present invention;
FIG. 4 is an exploded view of the upper screen box of the present invention;
FIG. 5 is a schematic view of a buffer connection portion of the present invention;
FIG. 6 is a partial schematic view of a cushioned connection portion of the present invention;
FIG. 7 is a partial schematic view of the attachment of the screen drive assembly of the present invention;
FIG. 8 is a front view of a screen drive assembly of the present invention;
FIG. 9 is a perspective view of a magnetically levitated driving eccentric mass assembly and its attachment parts according to the invention;
FIG. 10 is a cross-sectional view of a magnetically levitated driving eccentric mass assembly and its attachment section according to the invention;
Icon: 1-a screen cover; 2-screening the box body; 3-screening down the box body; 4-a screen drive assembly; 5-magnetic suspension driving eccentric block assembly; 6, screening a bottom cover of the box body; 7-a rubber spring; 8-a base; 9-ear mount bolted connection assembly; 10-screening; 11-supporting a vibrating rod; 12-upper screen box shell; 13-an upper screen box inner shell; 14-a cross-shaped installation framework of the screen box body; 15-a buffer connection portion; 16-a screen fan-shaped installation framework; 401-supporting a vibrating disk; 402-an optoelectronic sleeve; 403-embedding an electromagnet movable block; 404-linear slide bearings; 405-energizing a solenoid; 406-a radiator fan; 501-a screen box support; 502-eccentric mass; 503—a guide rail; 504-ring-shaped guide magnets; 151-spring net; 152-rubber.
Detailed Description
For the purpose of making 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 clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.
Examples
Referring to fig. 1, a magnetic suspension driving rotary vibration screen with a screen cleaning function comprises a screen cover 1, an upper screen box 2, a lower screen box 3, a screen driving assembly 4, a magnetic suspension driving eccentric block assembly 5, a screen box bottom cover 6, a rubber spring 7, a base 8 and an ear seat bolt connecting assembly 9, wherein the upper screen box 2 is formed by combining 4 separated structures, the separated structures comprise an upper screen box outer shell 12 and an upper screen box inner shell 13, a screen 10, a supporting vibration rod 11, a screen fan-shaped mounting framework 16, a screen box cross-shaped mounting framework 14 and a buffer connecting part 15 are arranged in the separated structures, the screen driving assembly 4 comprises a supporting vibration disk 401, a photoelectric sleeve 402, an embedded electromagnet movable block 403, a linear sliding bearing 404, an electrifying solenoid 405 and a cooling fan 406, the magnetic suspension driving eccentric block assembly 5 comprises a screen box support 501, an eccentric block 502, a guide rail 503 and an annular guide magnet 504, the buffer connecting part 15 comprises a spring net 151 and a rubber 152, the connecting part arranged at the bottom of the screen 10 is a fan-shaped screen mounting framework 16, and the screen box mounting framework is in a cross-shaped; the structure utilizes the electrified solenoid 405 and the embedded electromagnet movable block 403 to generate electromagnetic force, and drives the magnetic suspension driving eccentric block assembly 5 to rotate, and the magnetic suspension driving eccentric block assembly 5 vibrates due to eccentric arrangement, and drives the screen driving assembly 4 to generate force for moving up and down through charging and discharging of the electromagnet, so that the screen driving assembly 4 drives the connecting component of the screen 10 to move up and down in the vertical direction, the screen 10 moves towards the center along with the connecting component, and the screen 10 moves towards the center and expands around, so that the screen 10 moves back and forth after being folded and expanded by charging and discharging of the electromagnet, and the screen 10 is cleaned.
Referring to fig. 2, the overall structure of the present embodiment is as follows, in order from top to bottom: the screen cover 1, the upper screen box 2, the lower screen box 3, the screen box bottom cover 6, the rubber spring 7 and the base 8, the screen driving component 4 is arranged in the middle of the lower screen box 3, and the magnetic suspension driving eccentric block component 5 is arranged in the lower screen box 3; the top of screen cover 1 is outside convex arcwall face, the middle part is provided with the through-hole that supplies the circulation of air, equally, screen box bottom 6 also is provided with the through-hole, for the liquid to pass through, screen box bottom 6's top edge welded fastening is to the bottom of lower screen box 3, screen box bottom 6 oscillates with lower screen box 3, screen box bottom 6's bottom edge is provided with the slice groove, and rubber spring 7's top embedding is in the slice inslot, make rubber spring 7 connect the bottom at screen box bottom 6, and rubber spring 7's bottom embedding is at the top of base 8, rubber spring 7 is equipped with 8 altogether, 8 rubber spring 7 connect between screen box bottom 6 and base 8, reach the operation more steady, the structure is compacter, make rotary vibrating screen can carry out stable vibration, and then to solid-liquid separation.
Referring to fig. 3 and 4, the upper screen box 2 is composed of 4 separate structures, the 4 separate structures are spliced end to end and are fixedly connected at the outer side through an ear seat bolt connecting assembly 9, so that the upper screen box 2 is combined into an annular structure, and the 4 separate structures are convenient to detach, 1/4 of the upper screen box 2, namely the separate structures, can be pulled out for maintenance failure when a rotary vibrating screen fails, the separate structures comprise an upper screen box outer shell 12 and an upper screen box inner shell 13, the upper screen box inner shell 13 is positioned at the inner side of the upper screen box outer shell 12, a groove formed by the upper screen box outer shell 12 and the upper screen box inner shell 13 around a circle is formed at the top of the annular structure, and annular protrusions are arranged at the edge of the bottom of the screen cover 1 and clamped into the groove, so that the screen cover 1 and the upper screen box 2 are connected in a matched manner; the upper screen box outer shell 12 is positioned at the outer side of the upper screen box inner shell 13, the separation between the inner side and the outer side effectively prevents unfiltered sediment from flowing into the lower layer, the buffer connection part 15 is arranged between the upper screen box outer shell 12 and the upper screen box inner shell 13 to buffer vibration, in the embodiment, two ends of a spring net 151 arranged at the buffer connection part are respectively welded and fixed on the inner wall of the upper screen box outer shell 12 and the outer wall of the upper screen box inner shell 13, and rubber 152 is sheet-shaped and respectively pressed on two sides of the spring net 151; the outer side of the adjacent separation type structure of the upper screen box body 2, namely the connecting part of the adjacent upper screen box shells 12 is fixedly provided with an ear seat bolt connecting component 9, in the embodiment, the position of the connecting part is provided with an ear seat, the ear seat is provided with a threaded hole, the adjacent upper screen box shells 12 are fixedly connected into an annular structure through bolts, the upper screen box shells 12 are also provided with a feeding port for drilling fluid to enter, the feeding port is formed by outwards extending the outer wall of the upper screen box shells 12, the inner end of the feeding port penetrates through the upper screen box inner shell 13 and is communicated with the annular inner side of the upper screen box inner shell 13, so that drilling fluid mixed with silt and drill cuttings is convenient to enter a rotary vibrating screen, the drilling fluid and small particles fall down through the screen 10, and large particles move towards the edge of the screen 10 along with the swinging movement of the screen surface of the screen 10; the upper screen box shell 12 and the upper screen box inner shell 13 are provided with a drawing window, the drawing window is communicated with the inside of the upper screen box inner shell 13, the feeding hole is located above the drawing window, the length of the drawing window just enables two sides of the screen cloth 10 to be propped against after the screen cloth 10 is inserted, the width of the drawing window is matched with the thickness of the screen cloth 10, only one screen cloth 10 is contained to pass through, the drawing window is used for inserting or drawing out the screen cloth 10 into or from the upper screen box body 2, when the screen cloth 10 is damaged and needs to be replaced, the screen cloth 10 can be conveniently and rapidly drawn out from the outer side of the upper screen box body 2, and the screen cloth can be replaced by being directly drawn out.
Referring to fig. 5 and 6, the upper screen box 2 is provided with a screen box installation framework radially connected to the inner wall of the upper screen box inner shell 13 from the center of the annular structure, in this embodiment, the screen box installation framework is a screen box cross installation framework 14, which is cross-shaped, the screen box cross installation framework 14 is provided with a chute clamped into the screen fan-shaped installation framework 16, the screen box cross installation framework 14 is divided into an upper sheet and a lower sheet, rubber 152 is attached between the two sheets, a spring net 151 is arranged between the rubber 152, two sides of the spring net 151 are just used for abutting against the screen fan-shaped installation framework 16, due to the upper sheet and the lower sheet of the screen box cross installation framework 14 and the spring net 151 and the rubber 152 arranged between the upper sheet and the lower sheet, while forming a chute concaved on both sides of the cross-shaped mounting framework 14 of the screen box body, when the screen 10 is folded, the fan-shaped mounting framework 16 of the screen is clamped into the chute, the spring net 151 and the rubber 152 form a buffer connection part 15, the buffer connection part 15 extends along all directions of the cross-shaped mounting framework 14 of the screen box body, and the end part of the buffer connection part 15 is arranged in a vertical direction, so that the end part of the buffer connection part 15 in four directions is bent upwards to be L-shaped, the spring net 151 and the rubber 152 positioned at the end part are positioned between adjacent separated structures, thus, when the 4 separated structures are connected, the spring net 151 and two rubber 152 at the side surfaces of the spring net 151 are just pressed, the shock absorption and the buffering are facilitated; the screen 10, the screen fan-shaped installation framework 16 and the supporting vibration rod 11 are respectively provided with 4, the screen box cross-shaped installation framework 14 divides the ring of the upper screen box 2 into 4 fan-shaped areas, the screen 10 and the fan-shaped areas are all in a 1/4 circular fan shape, the bottom edge of each screen 10 is clamped into the screen fan-shaped installation framework 16 and welded and fixed, the screen fan-shaped installation framework 16 is integrally formed by connecting three brackets, two brackets form 90 degrees, two ends of the third bracket are respectively connected with the two brackets, the third bracket is positioned near the inner end of a right angle, the inner sides of the two brackets which form the right angle mutually are used for clamping into the screen 10, two sides of a sharp corner of a fan-shaped structure of the screen cloth 10 are clamped at the edge of the bracket and welded and fixed, so that the screen cloth 10 is fixed with a fan-shaped installation framework 16 of the screen cloth, 4 pieces of screen cloth 10 are distributed in a radial manner, a hinging seat for hinging the top end of a supporting vibration rod 11 is convexly arranged at the bottom of a third bracket of the fan-shaped installation framework 16 of the screen cloth, the hinging seat is provided with a hinging hole, the supporting vibration rod 11 is connected with the hinging hole of the fan-shaped installation framework 16 of the screen cloth by utilizing a pin, the bottom ends of the 4 supporting vibration rods 11 are hinged to the top end of a screen cloth driving assembly 4 in a radial manner, the top end of the screen cloth driving assembly 4 is provided with a supporting vibration disc 401, four U-shaped seats are convexly arranged around the edge of the supporting vibration disc 401, the U-shaped seat is provided with opposite holes, and a pin penetrates through a pin hole at the bottom end of the supporting vibration rod 11 and is connected to the opposite holes, so that the supporting vibration rod 11 is connected with the supporting vibration plate 401; after the connection, when 4 screens 10 are folded, the screen fan-shaped installation frameworks 16 are pressed on two sides of the spring net 151 and compress the springs, so that the screen fan-shaped installation frameworks 16 play a role in damping and buffering, the screens 10 can be synchronously folded or unfolded relative to the upper screen box 2 through the driving of the screen driving assembly 4, the folding or unfolding mode is umbrella-shaped to be shrunk and unfolded, the screens 10 are synchronously folded and unfolded, the screens 10 are effectively cleaned, and when 4 screens 10 are folded, the screens 10 and the screen fan-shaped installation frameworks 16 together fill a fan-shaped area without gaps, and liquid only passes through the screens 10.
The lower screen box body 3 of the embodiment is composed of a middle frame structure and an outer ring, the frame structure is radially distributed and provided with 5 supporting rods, the 5 supporting rods are connected at the center to form a radial shape, the other ends of the supporting rods are fixedly connected with the inner wall of the outer ring, a bearing hole concaved inwards from the top is arranged at the center of the frame structure, the outer ring is annular, the frame structure and the outer ring are integrally formed, the screen driving assembly 4 is arranged in the bearing hole through the bearing hole and can move up and down relative to the lower screen box body 3, so that the movement of the screen driving assembly 4 is limited in a linear direction, the action similar to that of a linear bearing is realized, an annular space is concaved inwards at the bottom of the outer ring, and the magnetic suspension driving eccentric block assembly 5 is arranged in the annular space; the top of the lower screen box 3, that is, the top edge of the outer ring is provided with a stepped groove, the shape of which is matched with the bottoms of the upper screen box outer shell 12 and the upper screen box inner shell 13, so that the upper screen box 2 sits on the stepped groove, and a circle of rubber 152 is arranged on the stepped groove to seal, thus the rotary vibrating screen is tightly sealed, and liquid leakage is avoided.
Referring to fig. 7 and 8, the screen driving assembly 4 is disposed in a bearing hole of a frame structure of the lower screen box 3, wherein a photoelectric sleeve 402, a linear sliding bearing 404, an embedded electromagnet moving block 403, an electrifying solenoid 405 and a cooling fan 406 are disposed in the bearing hole, and a bottom of the supporting vibration disc 401 is abutted against a top of the bearing hole, so that the supporting vibration disc 401 always exposes out of the bearing hole, the supporting vibration disc 401 is connected with the supporting vibration rod 11 through a U-shaped seat disposed around the supporting vibration disc, the supporting vibration disc 401 and the linear sliding bearing 404 are respectively disposed at two ends of a top and a bottom of the photoelectric sleeve 402, the photoelectric sleeve 402 is annular, a shaft of the linear sliding bearing 404 passes through the annular connection of the photoelectric sleeve 402 to the supporting vibration disc 401, the photoelectric sleeve 402 is rotatable relative to the linear sliding bearing 404, a rod-shaped structure for clamping the bearing hole is outwardly protruded outside of the photoelectric sleeve 402, the photoelectric sleeve 402 rotates together with the frame structure, the electrifying solenoid 405 is provided with the embedded electromagnet moving block 403, thus forming an electromagnet, a top end of the electrifying solenoid 405 is connected with the linear sliding bearing 404, the bottom of the electrifying solenoid 405 is further provided with the cooling fan 406, the cooling fan 406 and the cooling fan 406 is disposed at two ends of the supporting vibration disc, the bottom of the supporting vibration disc 405 is provided with a gap between the electromagnet moving block 405, and the electromagnet moving in a stable direction is more stable, and the driving force is provided in a vertical direction of the bearing 10, and the driving force is more stable, and is formed in the vertical driving force of the sliding structure is realized.
Referring to fig. 9 and 10, the magnetic levitation driving eccentric block assembly 5 is annular, the screen driving assembly 4 is located at the center of the annular shape, that is, the screen driving assembly 4 is located in a bearing hole of the lower screen box 3, the magnetic levitation driving eccentric block assembly 5 is placed in an annular space at the bottom of the lower screen box 3, the screen box support 501 is placed at an outer ring position of the annular space, an annular groove is concavely formed at the bottom of the screen box support 501, and the eccentric block 502, the guide rail 503 and the annular guide magnet 504 are located in the annular groove, so that the eccentric block 502, the guide rail 503 and the annular guide magnet 504 are sealed at the top of the screen box bottom 6, the bottom of the screen box support 501 is welded and fixed with the screen box bottom 6, the guide rail 503 is annular and is placed at the outer side of the annular groove of the screen box support 501, the annular outer side of the annular guide magnet 504 is placed on the guide rail 503, a strip-shaped structure is inwards arranged at the inner side of the guide rail 503, the guide rail 503 and the annular guide magnet 504 is matched with a U-shaped groove, thus the guide rail 503 and the annular guide magnet 504 is clamped with each other, relative up-down movement is not generated, the eccentric block 502 is limited, the eccentric block is arranged on the annular block 502 and the eccentric block is in a small arc shape and the eccentric block is in a rotary manner is attached to the annular block 502 and the eccentric block is in a rotary motion is in a curve shape and is attached to the eccentric block 2; the structure utilizes a long stator linear synchronous motor, namely electromagnetic levitation force, guiding force and driving force generated by a screen driving assembly 4 and a magnetic levitation driving eccentric block assembly to realize that an annular guiding magnet 504 drives an eccentric block 502 to rotate, so as to achieve eccentric effect and cause vibration.
In summary, the liquid is guided into the upper screen box through the feed inlet, the screen can be extracted and inserted for replacement, the screen driving assembly moves in the bearing hole to drive the supporting vibration rod, the supporting vibration rod drives the screen to be folded and unfolded, the screen is cleaned, the screen driving assembly generates electromagnetic force through the embedded electromagnet moving block and the electrified solenoid, rotates under the electromagnetic force action of the annular guide magnet, vibrates under the eccentric force generated by the eccentric block, and vibration is buffered by the rubber spring; the vibrating screen can solve the problem that the screen mesh of the existing drilling fluid vibrating screen is difficult to clean, can effectively clean the screen mesh, and is high in cleaning efficiency, good in effect, capable of continuously operating and long in service life.
The foregoing description of the preferred embodiments of the invention is not intended to illustrate and describe all possible forms of the invention. Those of ordinary skill in the art will recognize that the embodiments described herein are for the purpose of aiding the reader in understanding the principles of the present invention and should be understood that the scope of the invention is not limited to such specific statements and embodiments. Those of ordinary skill in the art can make various other specific modifications and combinations from the teachings of the present disclosure without departing from the spirit thereof, and such modifications and combinations remain within the scope of the present disclosure.
Claims (7)
1. The magnetic suspension driving rotary vibrating screen with the screen cleaning function is characterized by comprising an upper screen box body (2) internally provided with a plurality of screens (10), a screen driving assembly (4) internally provided with an electrified solenoid (405), and a magnetic suspension driving eccentric block assembly (5) internally provided with an annular guide magnet (504), wherein the electrified solenoid (405) is provided with an embedded electromagnet movable block (403); the magnetic suspension driving eccentric block assembly (5) is annular, the screen driving assembly (4) is positioned in the annular center, a plurality of screens (10) are radially distributed, each screen (10) is provided with a connecting part for hinging and supporting the vibrating rod (11), the bottom ends of the plurality of supporting vibrating rods (11) are hinged to the top ends of the screen driving assembly (4) and are radially connected, and the screens (10) can be synchronously folded or unfolded relative to the upper screen box body (2) by being driven by the screen driving assembly (4);
The upper screen box body (2) is of an annular structure, the upper screen box body (2) is provided with a screen box body installation framework which is radially connected to the inner side of the annular structure from the annular center, the connecting part is a screen fan-shaped installation framework (16) connected to the edge of the screen (10), the screen box body installation framework is provided with a sliding groove clamped into the screen fan-shaped installation framework (16), the inner ring of the upper screen box body (2) is divided into a plurality of fan-shaped areas by the screen box body installation framework, when the plurality of screens (10) are folded, the screen (10) and the screen fan-shaped installation framework (16) are filled together, the fan-shaped areas are free of gaps, and liquid only passes through the screen (10);
the screen driving assembly (4) comprises a supporting vibration disc (401), a photoelectric sleeve (402), an embedded electromagnet moving block (403) and a linear sliding bearing (404), wherein the linear sliding bearing (404) penetrates through the photoelectric sleeve (402) to be connected to the bottom end of the supporting vibration disc (401), the top end of an electrified solenoid (405) is connected to the linear sliding bearing (404), and a cooling fan (406) is further arranged at the bottom end of the electrified solenoid (405);
The magnetic suspension driving eccentric block assembly (5) further comprises a screen box support (501), an eccentric block (502) and a guide rail (503), wherein the screen box support (501) is annular, an annular groove is concavely formed in the bottom of the screen box support, the guide rail (503) is annular and is arranged in the annular groove of the screen box support (501), the annular outer side of the annular guide magnet (504) leans on the guide rail (503), and the eccentric block (502) is arc-shaped and is arranged on the inner side of the annular guide magnet (504) and is fixed.
2. The magnetic suspension driving rotary vibrating screen with a screen cleaning function according to claim 1, wherein the screen box mounting frame is provided with a buffer connection portion (15) for a buffer connection part, the buffer connection portion (15) comprises a spring net (151) and rubber (152), the rubber (152) is arranged on the top and bottom sides of the spring net (151), and when a plurality of screens (10) are folded, the screen fan-shaped mounting frame (16) is pressed on two sides of the spring net (151) and compresses the spring net (151) and the rubber (152).
3. The magnetic suspension driving rotary vibrating screen with the screen cleaning function according to claim 1, wherein the upper screen box body (2) is a plurality of separated structures which are combined to form an annular structure, adjacent separated structures are connected through an ear seat bolt connecting assembly (9), the separated structures comprise an upper screen box outer shell (12) and an upper screen box inner shell (13), and the upper screen box outer shell (12) is provided with a drawing window for inserting or drawing the screen (10) into or out of the upper screen box body (2).
4. A magnetically levitated driven rotary vibration sieve with a net cleaning function according to claim 3, characterized in that the upper sieve box shell (12) is further provided with a feed inlet for liquid to enter, the feed inlet is located above the drawing window, the top of the upper sieve box shell (12) is further connected with a sieve cover (1), and the top of the sieve cover (1) is provided with an air circulation through hole.
5. The magnetic suspension driving rotary vibrating screen with a screen cleaning function according to claim 1, further comprising a screen box bottom cover (6), rubber springs (7) and a base (8), wherein the bottom cover is connected to the bottom of the screen box support (501), the screen box bottom cover (6) is provided with a through hole through which liquid passes, and a plurality of the rubber springs (7) are connected between the screen box bottom cover (6) and the base (8).
6. The magnetic suspension driving rotary vibrating screen with the screen cleaning function according to claim 5, wherein the rotary vibrating screen further comprises a lower screen box body (3), the lower screen box body (3) comprises an annular outer ring and a frame structure connected in the annular shape, an annular space is arranged at the bottom of the outer ring, the magnetic suspension driving eccentric block assembly (5) is arranged in the annular space, a stepped groove is formed in the top of the outer ring of the lower screen box body (3), and the upper screen box body (2) sits on the stepped groove and is provided with a circle of rubber sealing stepped groove; the frame structure is radial, a bearing hole is formed in the radial center of the frame structure, and the screen driving assembly (4) is arranged in the bearing hole and can move up and down relative to the lower screen box body (3).
7. The magnetic suspension driving rotary vibrating screen with a screen cleaning function according to claim 5, wherein the screen box installation framework is a screen box cross installation framework (14), the screen box cross installation framework (14) is cross-shaped, 4 screen meshes (10), screen mesh fan-shaped installation frameworks (16) and supporting vibrating bars (11) are respectively arranged, and the screen meshes (10) and the fan-shaped areas are all in a fan shape of 1/4 circle.
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| CN202110313289.2A CN112855054B (en) | 2021-03-24 | 2021-03-24 | Magnetic suspension driving rotary vibrating screen with net cleaning function |
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| CN115007434B (en) * | 2022-07-16 | 2024-01-12 | 江河安澜工程咨询有限公司 | Magnetic suspension rotary vibration screening equipment |
| CN116735306B (en) * | 2023-05-19 | 2024-05-03 | 生态环境部南京环境科学研究所 | Device for screening out ferro-manganese nodules with various particle size sections from surface soil large sample |
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