CN116078542B - Carefully select screening plant - Google Patents

Carefully select screening plant Download PDF

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Publication number
CN116078542B
CN116078542B CN202310371553.7A CN202310371553A CN116078542B CN 116078542 B CN116078542 B CN 116078542B CN 202310371553 A CN202310371553 A CN 202310371553A CN 116078542 B CN116078542 B CN 116078542B
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China
Prior art keywords
filter
shaft
filter screen
screening
screening frame
Prior art date
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Active
Application number
CN202310371553.7A
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Chinese (zh)
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CN116078542A (en
Inventor
张春丽
王美娟
刘敏
王子鹏
张金丽
包凌飞
许丽珍
朱春花
卢卫华
马玉娥
施立善
李星
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Henan Baojing Agricultural Technology Co ltd
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Henan Baojing Agricultural Technology Co ltd
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Priority to CN202310371553.7A priority Critical patent/CN116078542B/en
Publication of CN116078542A publication Critical patent/CN116078542A/en
Application granted granted Critical
Publication of CN116078542B publication Critical patent/CN116078542B/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B11/00—Feed or discharge devices integral with washing or wet-separating equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/28—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation
    • B03B5/30—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions
    • B03B5/36—Devices therefor, other than using centrifugal force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • B07B1/34—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens jigging or moving to-and-fro perpendicularly or approximately perpendiculary to the plane of the screen
    • B07B1/343—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens jigging or moving to-and-fro perpendicularly or approximately perpendiculary to the plane of the screen with mechanical drive elements other than electromagnets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B2201/00—Details applicable to machines for screening using sieves or gratings
    • B07B2201/04—Multiple deck screening devices comprising one or more superimposed screens
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combined Means For Separation Of Solids (AREA)

Abstract

The invention relates to the field of particulate screening devices, in particular to a carefully chosen screening device. The screening frame is a rectangular tubular structure formed by screen plates and can be arranged in the sorting barrel in an up-and-down sliding manner. The upper end of the screening frame is arranged at the left and right sliding mode of the cleaning groove and is used for cleaning suspended impurities floating on the water surface; the first filter screen is obliquely arranged in the screening frame and fixedly connected with the screening frame; the second filter screen is arranged in the screening frame and is opposite to the first filter screen in inclination direction; the transverse edges of the left end and the right end of the second filter screen can be connected with the screening frame in an up-and-down sliding manner; the second filter screen is configured to slide downwards for a preset distance, the aperture is enlarged, and the aperture is restored to an initial state after a preset time; the adjusting component is used for driving the screening frame to slide downwards to the inside of the sorting barrel, then drives the cleaning groove to slide left and right, and then enables the second filter screen to slide downwards for a preset distance, and then can screen heavier impurities in the particulate matters, so that the quality of the particulate matters after screening is improved.

Description

Carefully select screening plant
Technical Field
The invention relates to the field of particulate screening devices, in particular to a carefully chosen screening device.
Background
The water immersion type screening method is a common solid particle screening method, and the screening method is generally used for screening and classifying solid particles in the fields of pharmacy, chemical industry, food, mining industry and the like.
When the water immersion type screening method is adopted to screen and classify the particles, the particles to be screened are required to be soaked in water, the lighter particles are suspended on the water surface by utilizing the buoyancy of the water, and the heavier particles are submerged in the water, so that the separation of the particles is completed. However, the existing water immersion type screening method can only separate out lighter particles which can be suspended on the water surface, and soil blocks, stones and the like contained in the heavier particles can sink into the water together with the heavier particles and cannot be screened out quickly and effectively, so that re-screening treatment (such as manual selection) is needed for the soil blocks, stones and the like in the heavier particles, and the screening efficiency of the particles is reduced.
Disclosure of Invention
The invention provides a carefully chosen screening device which aims at solving the problem that the existing screening device is difficult to screen out heavier impurities in particulate matters.
The invention relates to a carefully selecting and screening device which adopts the following technical scheme:
a carefully chosen screening device comprises a sorting barrel, a screening frame, a filtering component and an adjusting component; a water storage cavity is arranged in the sorting barrel; the screening frame is of a rectangular cylindrical structure formed by screen plates and can be arranged in the sorting barrel in an up-and-down sliding manner; a first sliding block capable of sliding up and down is arranged on the left side wall of the screening frame; the right side wall of the screening frame is provided with a second sliding block capable of sliding up and down; the filter assembly comprises a cleaning groove, a first filter screen and a second filter screen; the cleaning groove is horizontally arranged and extends along the front-back direction; the upper end of the screening frame is arranged at the left and right sliding mode of the cleaning groove and is used for cleaning suspended impurities floating on the water surface; the first filter screen is obliquely arranged in the screening frame and fixedly connected with the screening frame; the second filter screen is arranged in the screening frame and is opposite to the first filter screen in inclination direction; the second filter screen comprises a first filter plate, a second filter plate and a damping cylinder; the aperture and the arrangement mode of the filter holes on the first filter plate and the second filter plate are the same; the left transverse edge of the second filter plate is hinged with the first sliding block through a telescopic rod; the damping shaft of the damping cylinder is of an elastic telescopic structure; the damping cylinder is connected with the second sliding block, and a damping shaft of the damping cylinder is connected with the right transverse edge of the second filter plate; the first filter plate is in a telescopic plate shape and is mutually attached to the second filter plate; the left end of the first filter plate is hinged with the first sliding block, the right end of the first filter plate is hinged with the second sliding block, and the axes between the filter holes on the first filter plate and the filter holes on the second filter plate in an initial state are not collinear, so that when the damping cylinder is compressed to a preset state, the axes between the filter holes on the first filter plate and the filter holes on the second filter plate are collinear; the adjusting assembly comprises a first adjusting part, a second adjusting part and a third adjusting part; the first adjusting part is used for driving the screening frame to slide up and down; the second adjusting part is used for driving the first sliding block and the second sliding block to slide up and down; the third adjusting part is used for driving the cleaning groove to slide left and right.
Further, the first adjusting part comprises a lifting frame, a lifting shaft and a first motor; the lifting frame is sleeved on the sorting barrel in a vertically sliding manner and is connected with the screening frame so as to drive the screening frame to slide up and down when sliding up and down; the first motor is fixedly arranged on the sorting barrel; the lifting shaft is vertically arranged, the upper end of the lifting shaft is connected with the lifting frame, the lower end of the lifting shaft is connected with the first motor, and the lifting shaft is a telescopic shaft so that the lifting shaft stretches and contracts when the first motor drives the lifting shaft to rotate.
Further, the second adjusting part comprises a first adjusting shaft, a second adjusting shaft and a second motor; the first adjusting shaft and the second adjusting shaft are both lead screws; the first adjusting shaft is in threaded connection with the first sliding block; the second adjusting shaft is in threaded connection with the second sliding block; the second motor is arranged on the lifting frame and used for driving the first adjusting shaft and the second adjusting shaft to rotate.
Further, the second adjustment shaft includes a first section and a second section; the pitch on the first section is the same as the pitch of the first adjusting shaft; the screw pitch of the second section is larger than that of the first section, and when the first sliding block and the second sliding block slide downwards for a first preset distance, the second section of the second adjusting shaft is matched with the second sliding block; the second motor drives the first adjusting shaft and the second adjusting shaft to synchronously rotate through the transmission mechanism.
Further, a first blanking hopper and a second blanking hopper are arranged on the sorting barrel; a first discharge hole and a second discharge hole are formed in the side wall of the screening frame; the first discharge hole is communicated with the right end of the first filter screen, the first discharge hole is in a closed state in an initial state, and when the screening frame slides upwards to a third preset position, the first discharge hole is opened and communicated with the first discharging hopper; the second discharge port is communicated with the right end of the second filter screen after the inclination direction is changed, the second discharge port is in a closed state in the initial state, and the second discharge port is opened and communicated with the second discharging hopper when the screening frame slides upwards to a fourth preset position.
Further, the cleaning groove is in a bucket shape, and a shovel plate is arranged on the cleaning groove; the transverse edge of one end of the shovel plate is hinged with the transverse edge of the open end of the cleaning groove through a hinge shaft, a damping mechanism is arranged on the hinge shaft, the initial state of the shovel plate is in a horizontal state, and when the shovel plate rotates to be in a vertical state, the damping mechanism enables the shovel plate to reset slowly.
The beneficial effects of the invention are as follows: the screening device comprises a sorting barrel, a screening frame, a filtering component and an adjusting component, wherein the aperture of the first filter screen is larger than that of the second filter screen, so that the particles are classified and screened, and heavier particles fall onto the second filter screen. The adjusting component is used for controlling the screening frame to slide downwards to the position below the water surface of the sorting barrel and then controlling the cleaning groove to slide left and right to clean suspended matters. The adjusting part makes the second filter screen slide downwards rapidly, after the second filter screen slides downwards rapidly and presets the distance, because the speed that heavier particulate matter sunk is than the speed piece that the particulate matter sunk of less, and then make heavier particulate matter earlier with the second filter screen contact, and the aperture of second filter screen filtration pore is in great state, heavier particulate matter can pass the second filter screen downwards, the aperture of second filter screen filtration pore resumes normal size after presetting time, and then prevent that lighter particulate matter from being screened downwards, and then can screen heavier particulate matter in the particulate matter, thereby improve the quality after the screening of particulate matter.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic view of an embodiment of a beneficiation screening apparatus in accordance with the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a cross-sectional view of an embodiment of a beneficiation screening device of the present invention;
FIG. 4 is a partial enlarged view at B in FIG. 3;
FIG. 5 is a partial schematic view of an embodiment of a beneficiation screening apparatus in accordance with the present invention;
FIG. 6 is an enlarged view of a portion of FIG. 5 at C;
FIG. 7 is a schematic view of the structure of a second filter screen of an embodiment of a beneficiation screening device of the present invention;
FIG. 8 is a partial enlarged view at D in FIG. 7;
FIG. 9 is an enlarged view of a portion of FIG. 7 at E;
in the figure: 100. a sorting barrel; 110. a drain valve; 120. a third filter screen; 130. a discharge port; 141. a first blanking hopper; 142. a second blanking hopper; 200. a screening frame; 210. a first slider; 220. a second slider; 230. a connecting plate; 240. a chute; 310. a first filter screen; 320. a second filter screen; 321. a first filter plate; 322. a second filter plate; 323. a damping cylinder; 324. a telescopic rod; 330. cleaning the groove; 331. a shovel plate; 340. a diversion cone; 410. a first motor; 411. a lifting frame; 412. a lifting shaft; 420. a second motor; 421. a first adjustment shaft; 422. a second adjustment shaft; 423. a driving belt.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
An embodiment of a beneficiation screening apparatus of the present invention, as shown in fig. 1-9, comprises a classifying tub 100, a screening frame 200, a filtering assembly, and a conditioning assembly; the inside of the sorting barrel 100 is provided with a water storage cavity, the sorting barrel 100 is a square barrel, water is filled in the sorting cavity, and the bottom of the sorting barrel 100 is provided with a water discharge valve 110. The bottom of the sorting barrel 100 is provided with a third filter screen 120, and the third filter screen 120 is obliquely arranged in the sorting barrel 100; the sorting barrel 100 is provided with a discharge opening 130, the discharge opening 130 is communicated with the lower side of the third filter screen 120, and the initial state is in a closed state.
The screening frame 200 is a rectangular cylindrical structure surrounded by screen plates, and can be arranged in the sorting barrel 100 in an up-and-down sliding manner, specifically, the screening frame 200 can slide down into the water solution in the water storage cavity in the sorting barrel 100. The filter assembly includes a cleaning tank 330, a first filter screen 310, and a second filter screen 320. The cleaning groove 330 is horizontally arranged and extends along the front-back direction, the cleaning groove 330 is arranged at the upper end of the screening frame 200 in a sliding manner left and right and is used for cleaning suspended impurities floating on the water surface, the cleaning groove 330 is in a screen mesh shape, when particles are immersed in the water of the sorting barrel 100, the suspended impurities contained in the particles can float on the water surface, and the cleaning groove 330 slides left and right from the right so as to clean the suspended impurities. The first filter screen 310 is obliquely arranged in the screening frame 200, the first filter screen 310 is fixedly connected with the screening frame 200, the first filter screen 310 screens the particulate matters, and the first filter screen 310 is obliquely arranged so that the particulate matters can roll on the first filter screen 310, and the first filter screen 310 is obliquely arranged so that the screening of the particulate matters is more complete. The second filter screen 320 is disposed in the screening frame 200 and is located below the first filter screen 310, and is opposite to the first filter screen 310 in inclination direction, so that the particles roll on the second filter screen 320, specifically, the aperture of the filter holes on the first filter screen 310 is larger than that of the filter holes of the second filter screen 320, and then the particles are classified and screened, and the heavier particles drop onto the second filter screen 320. The transverse edges at the left and right ends of the second filter screen 320 are connected with the screening frame 200 in a vertically sliding manner, and the left and right transverse edges of the second filter screen 320 are horizontally arranged and are respectively connected with the left and right side walls of the screening frame 200 in a sliding manner; the second filter 320 is configured to slide downward by a preset distance and the aperture is enlarged, and after the aperture is enlarged for a preset time, the aperture of the second filter 320 is restored. Specifically, the first filter 310 is set obliquely with high left and low right, and the second filter 320 is set obliquely with low left and high right in its initial state. (the left side is the left side in fig. 3, the right side is the right side in fig. 3, and the up-down direction is the up-down direction in fig. 3). A first slider 210 is provided on the left side wall of the screen frame 200 so as to be capable of sliding up and down.
The adjusting component is used for driving the screening frame 200 to slide down into the sorting barrel 100, and then driving the cleaning groove 330 to slide left and right, and further driving the second filter screen 320 to slide down for a preset distance. Specifically, the particles to be screened are all poured into the screening frame 200, and in the initial state, the screening frame 200 is positioned above the water surface in the sorting barrel 100, the first sliding block 210 is positioned above the water surface, and the particles are primarily classified and screened by the first filter screen 310 and the second filter screen 320. The adjusting assembly drives the sieving frame 200 to be immersed under the water surface in the sorting barrel 100, suspended matter impurities in the particulate matters float on the water surface, and at the moment, the adjusting assembly enables the cleaning groove 330 to move left and right to clean suspended matters. Further, the adjusting component makes the second filter 320 slide downward rapidly, when the second filter 320 slides downward rapidly for a preset distance, the heavier particles sink faster than the lighter particles, so that the heavier particles contact the second filter 320 first, and the aperture of the filter hole of the second filter 320 is in a larger state, so that the heavier particles can pass through the second filter 320 downward. After the preset time, the pore diameter of the second filter screen 320 is recovered to be normal, and at this time, the lighter particles fall on the second filter screen 320, and the pore diameter of the second filter screen 320 is recovered to prevent the lighter particles from passing through the second filter screen 320 downwards. Heavier particulate matter falls onto third filter screen 120 and is discharged outwardly from discharge opening 130.
In the present embodiment, as shown in fig. 1 to 4, the right side wall of the screen frame 200 is provided with a second slider 220 that is slidable up and down (the left-right direction is shown in the left-right direction of fig. 3). Specifically, the left and right side walls of the screening frame 200 are each provided with a vertically extending chute 240, and the first slider 210 and the second slider 220 are slidably disposed in the chute 240, respectively. The second filter 320 is telescopic, the left end lateral edge is hinged with the first slider 210, and the right end lateral edge is hinged with the second slider 220, so as to drive the second filter 320 to change in a telescopic manner when the distance between the first slider 210 and the second slider 220 is changed. The adjusting assembly can control the first slider 210 and the second slider 220 to slide up and down, when the second filter screen 320 slides down by a preset distance, the second slider 220 slides below the first slider 210, and at this time, the distance between the first slider 210 and the second slider 220 is the same as the distance between the two in the initial state, so that the inclination direction of the second filter screen 320 is changed. At this time, the inclination direction of the second filter 320 is changed to be the same as the inclination direction of the first filter 310, and at this time, the second filter 320 is in a state of being high on the left and low on the right. In the initial state, the particles are all accumulated on the left side of the second filter 320, and when the inclination direction of the second filter 320 is changed, the particles falling on the second filter 320 slide from left to right, so that the particles can be further filtered.
In the present embodiment, as shown in fig. 3 to 9, the second filter screen 320 includes a first filter plate 321, a second filter plate 322, and a damping cylinder 323. The apertures and the arrangement of the filter holes on the first filter plate 321 and the second filter plate 322 are the same. The left lateral edge of the second filter plate 322 is hinged to the first slider 210 by a telescoping rod 324 so that the second filter plate 322 can be moved closer to or further from the first slider 210, with the telescoping rod 324 on the left side of the second filter plate 322 in the collapsed state. The damping cylinder 323 is provided with a damping shaft, the damping shaft of the damping cylinder 323 is of an elastic telescopic structure, the damping cylinder 323 rapidly contracts when receiving pressure, and then the damping shaft of the damping cylinder 323 slowly stretches out and returns when the pressure on the damping shaft of the damping cylinder 323 is withdrawn. The damping cylinder 323 is connected with the second slider 220, and a damping shaft of the damping cylinder 323 is connected with a right lateral edge of the second filter plate 322. Specifically, when the second slider 220 slides below the first slider 210, the distance between the first slider 210 and the second slider 220 gradually shortens, thereby driving the damping cylinder 323 to be compressed and pushing the right end of the second filter plate 322 and the second slider 220 to approach each other. After the inclination angle of the first slider 210 and the second slider 220 driving the second filter plate 322 is converted, the compressed damping shaft of the damping cylinder 323 is gradually released and restored, and the second filter plate 322 is gradually driven to push toward the first slider 210. Further, the time for the damping cylinder 323 to return to the original state from the compressed state is set to a time for the particulate matter on the second filter screen 320 to fall again on the second filter screen 320 to prevent lighter particulate matter from passing through the second filter screen 320 and allow heavier particulate matter to pass through the second filter screen 320. The first filter plate 321 has a telescopic plate shape, and is attached to the second filter plate 322. The left end of the first filter plate 321 is hinged with the first slider 210, the right end is hinged with the second slider 220, specifically, the damping cylinder 323 is fixedly connected with the right end of the first filter plate 321, the axes between the filter holes on the first filter plate 321 and the filter holes on the second filter plate 322 are not collinear in the initial state, the filter holes of the two filter plates are not completely overlapped, and the aperture of the filter holes on the second filter screen 320 is in a smaller state. When the damping cylinder 323 is compressed, the axes between the filter holes on the first filter plate 321 and the filter holes on the second filter plate 322 are collinear, at this time, the aperture of the filter holes on the second filter screen 320 is in the maximum state, when the heavier particles pass through the second filter screen 320 downwards, the damping cylinder 323 drives the second filter plate 322 to recover, so that the aperture of the second filter screen 320 recovers to the initial state, the lighter particles fall on the surface of the first filter plate 321 again, and the lighter particles slide to the right side bottommost on the second filter screen 320 after changing the slope again.
In the present embodiment, as shown in fig. 1 to 5, the adjustment assembly includes a first adjustment portion, a second adjustment portion, and a third adjustment portion. The first adjusting part is used for driving the sieving frame 200 to slide up and down; the second adjusting part is used for driving the first slider 210 and the second slider 220 to slide up and down; the third adjusting part is used for driving the cleaning groove 330 to slide left and right. The third adjusting part includes a linear motor for controlling the cleaning groove 330 to slide left and right.
The first adjusting part includes a lifting frame 411, a lifting shaft 412, and a first motor 410; the lifting frame 411 is sleeved on the sorting barrel 100 in a vertically sliding manner and is connected with the screening frame 200, when the lifting frame 411 slides up and down, the screening frame 200 is driven to slide up and down, the lifting frame 411 is in a rectangular annular shape, and the lifting frame 411 is sleeved on the screening frame 200. The first motor 410 is fixedly provided on the tub 100; the lifting shaft 412 is vertically arranged, the upper end of the lifting shaft 412 is connected with the lifting frame 411, the lower end of the lifting shaft 412 is connected with the first motor 410, the lifting shaft 412 stretches and contracts when the first motor 410 is started, the lifting shaft 412 comprises a threaded sleeve and a screw rod, the screw rod is inserted into the threaded sleeve, the screw rod is driven to slide in the threaded sleeve when the threaded sleeve rotates, the threaded sleeve is fixedly connected with an output shaft of the first motor 410, and the upper end of the screw rod is connected with the lifting frame 411. When the first motor 410 drives the lifting shaft 412 to rotate in the first direction, the lifting shaft 412 is contracted and shortened, and when the first motor 410 drives the lifting shaft 412 to rotate in the second direction, the lifting shaft 412 is lengthened. When the lifting shaft 412 is shortened, the lifting frame 411 is driven to move downwards, and the sieving frame 200 is driven to move downwards, and when the lifting shaft 412 is extended, the lifting frame 411 is driven to move upwards, and the sieving frame 200 is driven to move upwards.
In the present embodiment, as shown in fig. 1 to 6, the second adjusting part includes a first adjusting shaft 421, a second adjusting shaft 422, and a second motor 420. The first slider 210 and the second slider 220 are respectively provided with a connecting plate 230, the connecting plates 230 extend out of the screening frame 200, and when the connecting plates 230 slide up and down, the corresponding first slider 210 or second slider 220 is driven to move up and down. The first adjusting shaft 421 and the second adjusting shaft 422 are both lead screws; the first adjusting shaft 421 is in threaded connection with the connecting plate 230 on the first slider 210, so as to drive the first slider 210 to move up and down when the first adjusting shaft 421 rotates; the second adjusting shaft 422 is in threaded connection with the connecting plate 230 on the second slider 220, so as to drive the second slider 220 to move up and down when the second adjusting shaft 422 rotates. The second motor 420 is disposed on the lifting frame 411 and is used for driving the first adjusting shaft 421 and the second adjusting shaft 422 to rotate. Specifically, the first and second adjustment shafts 421 and 422 are rotatably installed on the elevation frame 411 and move up and down in synchronization with the screen frame 200.
The second adjustment shaft 422 includes a first section and a second section; the pitch of the first segment is the same as the pitch of the first adjusting shaft 421, and when the first adjusting shaft 421 and the second adjusting shaft 422 rotate, the first slider 210 and the second slider 220 are driven to synchronously move downwards. The second section is located at the lower side of the first section, and the pitch of the second section is greater than the pitch of the first section, so that when the second adjusting shaft 422 rotates, the lifting speed of the second slider 220 on the second section is greater than the lifting speed of the second slider 220 on the first section. The length of the first segment is set to a length that enables the first slider 210 to slide downward to a first preset distance (the first preset distance is equal to the length of the first segment and is smaller than the preset distance), after the first slider 210 and the second slider 220 slide downward for the first preset distance, the second segment of the second adjusting shaft 422 is matched with the second slider 220, and the speed of downward movement of the second slider 220 is greater than the speed of downward movement of the first slider 210, so that the second slider 220 slides below the first slider 210, and the inclination direction of the second filter screen 320 is changed. The second motor 420 drives the first adjusting shaft 421 and the second adjusting shaft 422 to synchronously rotate through a transmission mechanism, and specifically, the transmission mechanism comprises two transmission belts 423, one transmission belt 423 is connected with the first adjusting shaft 421 and the second motor 420, and the other transmission belt 423 is connected with the second adjusting shaft 422 and the second motor 420.
In this embodiment, as shown in fig. 3, the sorting tub 100 is provided with a first hopper 141 and a second hopper 142. The side wall of the screening frame 200 is provided with a first discharge hole and a second discharge hole, the number of the first discharge hole and the second discharge hole is two, and the two first discharge holes and the two second discharge holes are respectively positioned on two sides of the chute 240. The first discharge port is communicated with the right end of the first filter screen 310. The first discharge port is in a closed state in the initial state, and is opened and communicated with the first discharging hopper 141 when the sieving frame 200 slides up to a third preset position; the second discharge port is communicated with the right end of the second filter screen 320 after the inclination direction is changed, and in the initial state, the second discharge port is in the closed state, and is opened and communicated with the second discharging hopper 142 when the sieving frame 200 slides up to the fourth preset position. Specifically, the first filter screen 310 and the second filter screen 320 are both provided with a guide cone 340, the guide cone 340 is disposed on the upper surfaces of the right sides of the first filter screen 310 and the second filter screen 320 and is opposite to the chute 240 on the right side, the guide cone 340 is provided with two inclined planes, and the two inclined planes are respectively used for guiding the particulate matters on the first filter screen 310 and the second filter screen 320 to the two first discharge holes and the two second discharge holes on the two sides of the chute 240, so as to prevent the particulate matters from entering the chute 240 and obstructing the sliding of the second slider 220. Further, the first and second hoppers 141 and 142 are slidably mounted on the sorting barrel 100 in a left-right direction, so that when the screening frame 200 slides up to a predetermined height, the first and second hoppers 141 and 142 slide to abut against the screening frame 200 in the directions of the first and second discharge ports of the screening frame 200, respectively, and the first and second hoppers 141 and 142 communicate with the first and second discharge ports. The preset height is the height of the sieving frame 200 when the first discharge port and the first discharging hopper 141 are at the same level. And the first discharge hole and the second discharge hole are respectively provided with an electric control valve, and an electric control power supply for the electric control valves controls the opening and the closing.
In this embodiment, as shown in fig. 1 to 3, the cleaning groove 330 is in a bucket shape, and a shovel 331 is provided on the cleaning groove 330; the horizontal edge of one end of shovel 331 is articulated through the articulated shaft with the horizontal edge of the uncovered one end of clearance groove 330, and be equipped with damping mechanism on the articulated shaft, shovel 331 initial state is in the horizontality, when shovel 331 rotates to vertical state, damping mechanism makes shovel 331 slowly reset, initial state, clearance groove 330 is located the right side of screening frame 200, when clearance groove 330 moves left, clearance groove 330 is collected the clearance to suspended impurities, when clearance groove 330 moves left to the left side wall contact of shovel 331 and screening frame 200, along with the continuation left side of clearance groove 330 moves, shovel 331 becomes vertical state gradually, clearance groove 330 is "U" groove form, and then prevent that clearance groove 330 from the in-process impurity that resets to the right side from flowing out, after clearance groove 330 resumes to the right side, damping mechanism makes shovel 331 reset gradually.
In operation, as shown in fig. 1 to 9, the particles to be screened are poured into the screening frame 200, and the particles are screened by the first filter screen 310 and the second filter screen 320, and classified, and the impurities of the particles are primarily screened.
The first motor 410 is started, and the first motor 410 drives the lifting shaft 412 to rotate in a first direction. The lifting shaft 412 contracts and shortens when rotating in the first direction, and then drives the lifting frame 411 to move downwards, and the lifting frame 411 drives the sieving frame 200 to move downwards. When the screen frame 200 is immersed under the water surface in the classifying tub 100, suspended impurities in the particulate matter float above the water surface by the buoyancy of water. The linear motor drives the cleaning tank 330 to move from left to right, and the cleaning tank 330 cleans suspended impurities on the water surface. When the cleaning groove 330 moves leftwards until the shovel 331 contacts with the left side wall of the screening frame 200, the shovel 331 gradually becomes vertical as the cleaning groove 330 continues to move leftwards, and after the cleaning groove 330 is restored to the right side, the damping mechanism on the cleaning groove 330 gradually resets the shovel 331.
When the sieving frame 200 is immersed under the water surface in the sieving barrel 100, the second motor 420 is started, and the second motor 420 drives the first adjusting shaft 421 and the second adjusting shaft 422 to rotate synchronously through the driving belt 423. The first and second adjusting shafts 421 and 422 rotate to move downward with the first and second sliders 210 and 220 simultaneously, thereby rapidly moving the second filter screen 320 downward. After the second filter 320 moves downward by the first preset distance, the second section of the second adjusting shaft 422 is in threaded engagement with the second slider 220, so that the speed of the second slider 220 sliding downward is greater than the speed of the first slider 210 sliding downward, and the second slider 220 slides below the first slider 210, and finally the inclination direction of the second filter 320 is changed. As the second slider 220 moves downward with respect to the first slider 210, the distance between the first slider 210 and the second slider 220 gradually shortens. The distance between the first slider 210 and the second slider 220 is gradually shortened, thereby driving the damping cylinder 323 to be compressed and pushing the right end of the second filter plate 322 and the second slider 220 to approach each other. The pore size of the second filter mesh 320 is maximized when the filter pores of the first filter plate 321 and the filter pores of the second filter plate 322 are completely overlapped. After the inclination angle conversion of the first slider 210 and the second slider 220 driving the second filter plate 322 is completed, the compressed damping shaft of the damping cylinder 323 is gradually released and restored, and the second filter plate 322 is gradually driven to push toward the first slider 210, so that the aperture of the second filter screen 320 is gradually restored to the initial state. During this period, after the second filter 320 slides down rapidly by a predetermined distance, the heavier particles are in contact with the second filter 320 first due to the heavier particles sinking faster than the lighter particles sinking. Because the aperture of the filter holes of the second filter 320 is at the maximum state, the heavier particles which cannot be filtered before can directly pass through the second filter 320 to be filtered, and when the filter holes on the second filter 320 are restored to the original size, the lighter particles fall on the second filter 320 again, and are accumulated to the right side of the second filter 320, and the heavier particles fall on the third filter 120. In practical application, the screening mode can be used for screening seeds, and seeds with higher density and better quality in the seeds can be screened out.
The first motor 410 is started again, the first motor 410 drives the lifting shaft 412 to rotate in the second direction, and the lifting shaft 412 becomes to push the lifting frame 411 to move upwards and drive the sieving frame 200 to move upwards synchronously. When the sieving frame 200 is lifted to a predetermined height, the first and second discharging hoppers 141 and 142 slide in the direction of the sieving frame 200, so that the first and second discharging ports are opened, and the particulate matter is discharged from the first and second discharging hoppers 141 and 142, respectively, thereby completing sieving work.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims (6)

1. A beneficiation screening device, characterized in that: comprising the following steps:
a water storage cavity is arranged in the sorting barrel;
the screening frame is of a rectangular cylindrical structure formed by screen plates and can be arranged in the sorting barrel in an up-and-down sliding manner; a first sliding block capable of sliding up and down is arranged on the left side wall of the screening frame; the right side wall of the screening frame is provided with a second sliding block capable of sliding up and down;
the filter assembly comprises a cleaning groove, a first filter screen and a second filter screen; the cleaning groove is horizontally arranged and extends along the front-back direction; the upper end of the screening frame is arranged at the left and right sliding mode of the cleaning groove and is used for cleaning suspended impurities floating on the water surface; the first filter screen is obliquely arranged in the screening frame and fixedly connected with the screening frame; the second filter screen is arranged in the screening frame and is opposite to the first filter screen in inclination direction; the second filter screen comprises a first filter plate, a second filter plate and a damping cylinder; the aperture and the arrangement mode of the filter holes on the first filter plate and the second filter plate are the same; the left transverse edge of the second filter plate is hinged with the first sliding block through a telescopic rod; the damping shaft of the damping cylinder is of an elastic telescopic structure; the damping cylinder is connected with the second sliding block, and a damping shaft of the damping cylinder is connected with the right transverse edge of the second filter plate; the first filter plate is in a telescopic plate shape and is mutually attached to the second filter plate; the left end of the first filter plate is hinged with the first sliding block, the right end of the first filter plate is hinged with the second sliding block, and the axes between the filter holes on the first filter plate and the filter holes on the second filter plate in an initial state are not collinear, so that when the damping cylinder is compressed to a preset state, the axes between the filter holes on the first filter plate and the filter holes on the second filter plate are collinear;
the adjusting assembly comprises a first adjusting part, a second adjusting part and a third adjusting part; the first adjusting part is used for driving the screening frame to slide up and down; the second adjusting part is used for driving the first sliding block and the second sliding block to slide up and down; the third adjusting part is used for driving the cleaning groove to slide left and right.
2. A beneficiation screening device in accordance with claim 1, wherein:
the first adjusting part comprises a lifting frame, a lifting shaft and a first motor; the lifting frame is sleeved on the sorting barrel in a vertically sliding manner and is connected with the screening frame so as to drive the screening frame to slide up and down when sliding up and down; the first motor is fixedly arranged on the sorting barrel; the lifting shaft is vertically arranged, the upper end of the lifting shaft is connected with the lifting frame, the lower end of the lifting shaft is connected with the first motor, and the lifting shaft is a telescopic shaft so that the lifting shaft stretches and contracts when the first motor drives the lifting shaft to rotate.
3. A beneficiation screening device in accordance with claim 2, wherein:
the second adjusting part comprises a first adjusting shaft, a second adjusting shaft and a second motor; the first adjusting shaft and the second adjusting shaft are both lead screws; the first adjusting shaft is in threaded connection with the first sliding block; the second adjusting shaft is in threaded connection with the second sliding block; the second motor is arranged on the lifting frame and used for driving the first adjusting shaft and the second adjusting shaft to rotate.
4. A beneficiation screening device in accordance with claim 3, wherein:
the second adjusting shaft comprises a first section and a second section; the pitch on the first section is the same as the pitch of the first adjusting shaft; the screw pitch of the second section is larger than that of the first section, and when the first sliding block and the second sliding block slide downwards for a first preset distance, the second section of the second adjusting shaft is matched with the second sliding block; the second motor drives the first adjusting shaft and the second adjusting shaft to synchronously rotate through the transmission mechanism.
5. A beneficiation screening device in accordance with claim 1, wherein:
the sorting barrel is provided with a first blanking hopper and a second blanking hopper; a first discharge hole and a second discharge hole are formed in the side wall of the screening frame; the first discharge hole is communicated with the right end of the first filter screen, the first discharge hole is in a closed state in an initial state, and when the screening frame slides upwards to a third preset position, the first discharge hole is opened and communicated with the first discharging hopper; the second discharge port is communicated with the right end of the second filter screen after the inclination direction is changed, the second discharge port is in a closed state in the initial state, and the second discharge port is opened and communicated with the second discharging hopper when the screening frame slides upwards to a fourth preset position.
6. A beneficiation screening device in accordance with claim 1, wherein:
the cleaning groove is in a bucket shape, and a shovel plate is arranged on the cleaning groove; the transverse edge of one end of the shovel plate is hinged with the transverse edge of the open end of the cleaning groove through a hinge shaft, a damping mechanism is arranged on the hinge shaft, the initial state of the shovel plate is in a horizontal state, and when the shovel plate rotates to be in a vertical state, the damping mechanism enables the shovel plate to reset slowly.
CN202310371553.7A 2023-04-10 2023-04-10 Carefully select screening plant Active CN116078542B (en)

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KR101823975B1 (en) * 2017-05-31 2018-01-31 민원 Multistage sorting and circulation aggregate recovery system of suspended matter in construction waste
CN208694396U (en) * 2018-07-02 2019-04-05 深圳市东大洋建材有限公司 Sand-stone separator
CN110899111A (en) * 2019-12-08 2020-03-24 徐州博泰矿山安全科技有限公司 Ore flotation screening reaction unit capable of adjusting size of sieve mesh
CN212013666U (en) * 2020-04-03 2020-11-27 贾陟 Corn stalk reducing mechanism
CN111672759A (en) * 2020-05-13 2020-09-18 烟台天晟农业科技有限公司 Agricultural wheat grain screening device
CN213409373U (en) * 2020-05-28 2021-06-11 天津市恒泰盛通能源科技有限公司 Wheat straw separator for biomass particles
CN216460077U (en) * 2021-12-07 2022-05-10 湖北碧山机械股份有限公司 Rice grading and screening device with material not easy to block screen holes

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