CN116833096A - Automatic sand and stone raw material screening device for constructional engineering - Google Patents
Automatic sand and stone raw material screening device for constructional engineering Download PDFInfo
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- CN116833096A CN116833096A CN202311112054.2A CN202311112054A CN116833096A CN 116833096 A CN116833096 A CN 116833096A CN 202311112054 A CN202311112054 A CN 202311112054A CN 116833096 A CN116833096 A CN 116833096A
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- sand
- neodymium magnet
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- 238000012216 screening Methods 0.000 title claims abstract description 235
- 239000004576 sand Substances 0.000 title claims abstract description 130
- 239000004575 stone Substances 0.000 title claims abstract description 80
- 239000002994 raw material Substances 0.000 title claims abstract description 40
- 229910001172 neodymium magnet Inorganic materials 0.000 claims abstract description 161
- 239000012535 impurity Substances 0.000 claims abstract description 51
- 239000000428 dust Substances 0.000 claims abstract description 40
- 230000007246 mechanism Effects 0.000 claims abstract description 38
- 238000010276 construction Methods 0.000 claims abstract description 32
- 238000012546 transfer Methods 0.000 claims abstract description 30
- 238000007599 discharging Methods 0.000 claims abstract description 13
- 230000005389 magnetism Effects 0.000 claims description 9
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 7
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 7
- 241001330002 Bambuseae Species 0.000 claims description 7
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 7
- 239000011425 bamboo Substances 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims description 5
- 241000196324 Embryophyta Species 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims 1
- 239000002689 soil Substances 0.000 abstract description 15
- 238000005299 abrasion Methods 0.000 abstract description 4
- 238000004140 cleaning Methods 0.000 abstract description 3
- 230000003993 interaction Effects 0.000 abstract description 2
- 239000007787 solid Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000007873 sieving Methods 0.000 description 5
- 239000002699 waste material Substances 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000010813 municipal solid waste Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
-
- 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
- B07B1/18—Drum screens
- B07B1/22—Revolving drums
-
- 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
-
- 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
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of 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
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
- B07B11/06—Feeding or discharging arrangements
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses an automatic sand and stone raw material screening device for constructional engineering. The invention belongs to the technical field of sand and stone screening, and particularly relates to an automatic sand and stone raw material screening device for construction engineering, which comprises an inner rotating shaft sand and stone rotating screening mechanism, a magnetic driving vibration screen, a screening cylinder fixing structure, a feeding structure, a impurity discharging mechanism and a screening device transfer vehicle, wherein the rotating screening cylinder on the inner rotating shaft sand and stone rotating screening mechanism screens out impurities larger than sand in sand when rotating to finish primary screening, and meanwhile, a low-position active neodymium magnet and a high-position active neodymium magnet on the rotating screening cylinder generate non-contact repulsive interaction on a low-position passive neodymium magnet and a high-position passive neodymium magnet on the vibration screen, so that the vibration screen is driven to vibrate up and down, and soil dust in the sand after primary screening falls into a dust collecting disc through a plane screen, so as to finish cleaning of soil dust in the sand; solves the problems of large abrasion of mechanical structure and the like due to the fact that soil dust is mixed in sand in the traditional sand screening.
Description
Technical Field
The invention belongs to the technical field of sand screening, and particularly relates to an automatic sand raw material screening device for constructional engineering.
Background
During construction, sand and stone raw materials are required to be screened, solid impurities such as stones and the like mixed in the sand are screened out, so that sand capable of being used for mixing concrete is obtained, one screen is supported by a traditional screening method, sand and stone are thrown onto the screen by workers, and the stones are screened out;
the method has high labor intensity and low efficiency, and in order to improve screening efficiency and reduce labor intensity in recent years, a plurality of machines capable of automatically screening sand and stones are appeared on the market, and most of the machines adopt a vibrating screen or a rotary drum driven by the machines to enable sand to pass through and block solid impurities such as stones; however, these screening machines have the same problem that only solid impurities with a volume larger than that of sand can be filtered out, and impurities with a volume smaller than that of sand, such as dust, soil and the like, can pass through a filter screen along with the sand, so that the strength of concrete mixed by the sand mixed with the soil dust is low, the water resistance is poor, and the hidden danger of building safety exists;
in addition, screening machinery adopting the vibrating screen has larger mechanical friction during operation, generates noise and reduces the service life of equipment.
Disclosure of Invention
Aiming at the situation, the invention provides the automatic sand and stone raw material screening device for the construction engineering, which overcomes the defects of the prior art, and comprises an inner rotating shaft sand and stone rotating screening mechanism, a magnetic driving vibration screen, a screening cylinder fixing structure, a feeding structure, a impurity discharging mechanism and a screening device transfer vehicle, wherein the rotating screening cylinder on the inner rotating shaft sand and stone rotating screening mechanism screens out impurities larger than sand in rotation to finish preliminary screening, and meanwhile, a low-level active neodymium magnet and a high-level active neodymium magnet on the rotating screening cylinder generate non-contact repulsive interaction on a low-level passive neodymium magnet and a high-level passive neodymium magnet on the vibration screen, so that the vibration screen is driven to vibrate up and down, and soil dust in the sand after preliminary screening falls into a dust collecting disc through a plane screen, and the soil dust in the sand is removed; solves the problems of large abrasion of mechanical structure and the like due to the fact that soil dust is mixed in sand in the traditional sand screening.
The technical scheme adopted by the invention is as follows: the invention provides an automatic sand and stone raw material screening device for constructional engineering, which comprises an inner rotating shaft sand and stone rotating screening mechanism, a magnetic driving vibration screen, a screening cylinder fixing structure, a feeding structure, a impurity discharging mechanism and a screening device transfer trolley, wherein the magnetic driving vibration screen, the screening cylinder fixing structure, the feeding structure and the impurity discharging mechanism are arranged on the screening device transfer trolley, the inner rotating shaft sand and stone rotating screening mechanism is arranged on the screening cylinder fixing structure, and the magnetic driving vibration screen is positioned below the inner rotating shaft sand and stone rotating screening mechanism; the inner rotating shaft sand and stone rotating and screening mechanism comprises a rotating and screening cylinder, a main rotating shaft, a rotating motor and a coupler, wherein the rotating motor is arranged on a screening cylinder fixing structure, the main rotating shaft is rotationally arranged on the screening cylinder fixing structure, the rotating and screening cylinder is fixedly connected to the main rotating shaft, and a low-position driving neodymium magnet and a high-position driving neodymium magnet are arranged on the side surface of the rotating and screening cylinder along a circumferential surface array; the magnetic force driven vibrating screen comprises a bottom fixed frame and a vibrating screen, wherein the bottom fixed frame is arranged on a screening device transfer trolley, the vibrating screen is arranged on the bottom fixed frame in a sliding mode, a low-position passive neodymium magnet and a high-position passive neodymium magnet are arranged on the vibrating screen, when the low-position active neodymium magnet rotates to the bottommost position along with a rotary screening cylinder, the low-position passive neodymium magnet is positioned right below the low-position active neodymium magnet, the magnetic properties of magnetic poles of the low-position active neodymium magnet and the low-position passive neodymium magnet are the same, and when the high-position active neodymium magnet rotates to the bottommost position along with the rotary screening cylinder, the high-position passive neodymium magnet is positioned right below the high-position active neodymium magnet, and the magnetic properties of magnetic poles of the high-position active neodymium magnet and the high-position passive neodymium magnet are the same;
the sand and stone to be screened enters the rotary screening cylinder through the feeding structure, the rotary motor drives the main rotating shaft to rotate through the coupler, the rotary screening cylinder is driven to rotate, sand and stone therein continuously turn over when the rotary screening cylinder rotates, sand falls onto the vibrating screen through the rotary screening cylinder, and solid impurities such as stones and the like stay in the rotary screening cylinder; because the low-order active neodymium magnet rotates to the bottommost position along with the rotary screening cylinder, the low-order passive neodymium magnet is positioned under the low-order active neodymium magnet, the magnetism of the magnetic pole of the low-order active neodymium magnet, which is close to the low-order passive neodymium magnet, is the same, and the high-order passive neodymium magnet is positioned under the high-order active neodymium magnet, the magnetism of the magnetic pole of the high-order active neodymium magnet, which is close to the high-order passive neodymium magnet, is the same, so that repulsive force is generated among the low-order active neodymium magnet, the high-order passive neodymium magnet and the high-order passive neodymium magnet, and the repulsive force drives the vibrating screen to move on the bottom fixing frame, thereby realizing vibration of the vibrating screen and shaking off mud dust mixed in sand on the vibrating screen.
Further, the central axis of the rotary screening cylinder coincides with the central axis of the main rotating shaft, two ends of the main rotating shaft are positioned on two horizontal planes with different heights, the higher end of the main rotating shaft is connected with an output shaft of the rotary motor through a coupler, the rotary screening cylinder comprises a rib frame, a cylindrical screening net and inner supporting spokes, the rib frame is axially arranged on the cylindrical screening net, the inner supporting spokes are arranged in the cylindrical screening net, and two ends of the inner supporting spokes are fixedly connected to the rib frame and the main rotating shaft respectively; the low-position active neodymium magnet is arranged at the lower end of the rib frame, and the high-position active neodymium magnet is arranged at the higher end of the rib frame; the two ends of the main rotating shaft are positioned on two horizontal planes with different heights, so that the inclined arrangement of the rotating screening cylinder is realized, sand and stone are poured into the rotating screening cylinder from a higher position, the sand and stone under the action of gravity can roll on the cylindrical screening net in the rotating screening cylinder, the screening efficiency of the sand is improved, and the discharge of solid impurities such as stones and the like is facilitated; through setting up rib frame and inside support spoke, improve the structural strength who rotates screening section of thick bamboo, inside support spoke can play the effect of stirring grit simultaneously, further improves screening efficiency; in addition, establish low level initiative neodymium magnet and high level initiative neodymium magnet on the rib frame, can be with low level initiative neodymium magnet and high level initiative neodymium magnet when receiving the repulsive force with the repulsive force transmit inside support spoke on through the rib frame, and then transmit main pivot on, prevent to rotate the rocking of screening section of thick bamboo, improve screening plant's stability.
Further, a plane screen, a low-level sliding sleeve, a high-level sliding sleeve and a discharge hole are arranged on the vibrating screen, the plane screen is positioned under the cylindrical screening net, the low-level sliding sleeve and the high-level sliding sleeve are arranged on the same side edge of the plane screen, the low-level passive neodymium magnet and the high-level passive neodymium magnet are arranged on the bottom fixing frame and are close to the high-level sliding sleeve, and the discharge hole is arranged on one side of the plane screen; along with the vibration of shale shaker, the earth dust that mixes in the shale shaker goes up the sand is shaken off, and the sand of processing completion is through discharge gate discharge device, sets up the plane screen cloth under cylindric screening net, effectively prevents that sand from falling outside the magnetic force drive shale shaker, has avoided the waste of raw materials.
Further, a low-level sliding rod and a high-level sliding rod are arranged on the same side edge of the bottom fixing frame, the low-level sliding sleeve is arranged on the low-level sliding rod in a sliding mode, the high-level sliding sleeve is arranged on the high-level sliding rod in a sliding mode, the length of the high-level sliding rod is longer than that of the low-level sliding rod, a high-level spring oscillator is arranged on the outer side of the high-level sliding rod in a surrounding mode, a low-level spring oscillator is arranged on the outer side of the low-level sliding rod in a surrounding mode, two ends of the high-level spring oscillator are respectively abutted to the bottom fixing frame and the high-level sliding sleeve, two ends of the low-level spring oscillator are respectively abutted to the bottom fixing frame and the low-level sliding sleeve, and the length of the high-level spring oscillator is longer than that of the low-level spring oscillator; the length of the high-order spring vibrator is longer than that of the low-order spring vibrator, and the low-order sliding sleeve and the high-order sliding sleeve are arranged on the low-order spring vibrator and the high-order spring vibrator, so that the inclined arrangement of the vibrating screen is realized, sand is more favorably discharged out of the screening device through the discharge hole, sand is prevented from accumulating on the vibrating screen, and screening efficiency is prevented from being influenced; along with the rotation of the rotary screening cylinder, the low-level active neodymium magnet and the high-level active neodymium magnet are continuously close to and far away from the low-level passive neodymium magnet and the high-level passive neodymium magnet, when the low-level active neodymium magnet and the high-level active neodymium magnet are close to the high-level passive neodymium magnet and the high-level passive neodymium magnet, repulsive force generated by the same magnetism is applied to the high-level sliding sleeve on the higher side of the vibrating screen, so that the higher side of the vibrating screen moves downwards, meanwhile, the high-level spring vibrator is compressed, when the low-level active neodymium magnet and the high-level active neodymium magnet are far away from the high-level passive neodymium magnet and the high-level passive neodymium magnet, the repulsive force disappears, and the high-level spring vibrator rebounds to drive the vibrating screen to vibrate up and down relative to the bottom fixed frame, thereby enabling sand on the plane screen to shake mixed soil dust; because the repulsive force generated by the low-position active neodymium magnet, the high-position active neodymium magnet and the high-position passive neodymium magnet is a non-contact force, mechanical abrasion cannot be generated, noise is reduced, and the service life of the equipment is prolonged.
Further, the main rotating shaft is also provided with an upper end fixed bearing and a bottom end fixed bearing, the upper end fixed bearing is rotationally arranged at the higher end of the main rotating shaft, the bottom end fixed bearing is rotationally arranged at the lower end of the main rotating shaft, the screening cylinder fixing structure comprises a motor connecting support and a bearing connecting support, the motor connecting support and the bearing connecting support are arranged on the screening device transfer trolley, the bottom end fixed bearing and the upper end fixed bearing are arranged on the bearing connecting support, and the rotating motor is arranged on the motor connecting support; the main rotating shaft is fixed through the upper end fixed bearing and the bottom end fixed bearing, slipping and shaking of the main rotating shaft are prevented, the running stability of the device is improved, the motor connecting support and the bearing connecting support are connected, the structural strength is improved, and the occupied space of the device is saved.
Further, the screening cylinder fixing structure further comprises an end cover connecting bracket, the inner rotating shaft sand and stone rotary screening mechanism further comprises a feeding end cover, the feeding end cover is arranged on the end cover connecting bracket, the feeding end cover is attached to the higher end face of the rotary screening cylinder, and the top of the feeding end cover is provided with a feeding port; through setting up feed end cover and feed inlet, prevent to appear throwing the phenomenon when material loading in to rotating screening section of thick bamboo, avoided the waste of grit raw materials, also improved operational environment's cleanliness simultaneously.
Further, the feeding structure comprises a feeding support column, a feeding funnel and a folding connecting arm, wherein the feeding support column is arranged on a screening device transfer trolley, the folding connecting arm is arranged on the feeding support column in a sliding mode, the feeding funnel is arranged on the folding connecting arm in a clamping mode, and the bottom end of the feeding funnel is arranged in a feeding hole in a clamping mode; realize loading funnel's fixed through material loading pillar and folding linking arm, make things convenient for loading funnel's dismantlement and change, also be convenient for simultaneously dismantle the washing with rotating screening section of thick bamboo.
Further, the impurity removing mechanism is located at a position close to the lower end of the rotary screening cylinder and comprises a tail frame and an impurity removing slide way, the tail frame is arranged on a screening device transfer trolley, the impurity removing slide way is arranged on the tail frame and is an inclined slide way, and the top of the impurity removing slide way is attached to the lower end face of the rotary screening cylinder; through setting up the impurity removal slide of slope, outside arranging the device with solid impurity such as stone that sieves down, avoided the impurity accumulation condition that traditional screening machinery during operation exists, separate impurity and sand effectively, prevent secondary pollution.
Further, the magnetic force driving vibration screen also comprises a dust collecting disc, a sliding rail is arranged on the bottom fixing frame, the dust collecting disc is arranged on the sliding rail in a sliding manner, and the dust collecting disc is positioned under the low-position passive neodymium magnet; dust and soil mixed with sand on the vibrating screen are collected through the dust collecting disc, so that environmental pollution is avoided, and the dust collecting disc is convenient to take down and clean through the sliding track.
Further, the screening device transfer trolley comprises a bearing chassis, a driving wheel set and a cab, wherein the bearing chassis is connected with the cab, the driving wheel set is arranged at the bottoms of the bearing chassis and the cab, and the bottom fixing frame is arranged on the bearing chassis; the transfer of the device is realized through the transfer trolley of the screening device, so that the work site is convenient to replace, the laying efficiency of the device is improved, and the integration level of the device is improved.
The beneficial effects obtained by the invention by adopting the structure are as follows:
(1) The invention provides a sand raw material automatic screening device for constructional engineering, wherein when a low-level active neodymium magnet rotates to the bottommost position along with a rotary screening cylinder, a low-level passive neodymium magnet is positioned under the low-level active neodymium magnet, the magnetism of a magnetic pole close to the low-level active neodymium magnet is the same as that of a magnetic pole close to the low-level passive neodymium magnet, and a high-level passive neodymium magnet is positioned under the high-level active neodymium magnet, so that the magnetism of the magnetic pole close to the high-level active neodymium magnet is the same as that of the magnetic pole close to the high-level passive neodymium magnet, repulsive force is generated among the low-level active neodymium magnet, the high-level passive neodymium magnet and the high-level passive neodymium magnet, and the repulsive force drives a vibrating screen to move on a bottom fixing frame, so that the vibration of the vibrating screen shakes earth dust mixed in sand on the vibrating screen, and the reduction of concrete strength caused by the dust mixing in the sand is avoided;
(2) The invention provides an automatic sand and stone raw material screening device for construction engineering, which ensures that two ends of a main rotating shaft are positioned on two horizontal planes with different heights, thereby realizing the inclined arrangement of a rotary screening cylinder, pouring sand and stone into the rotary screening cylinder from a higher position, enabling the sand and stone subjected to the action of gravity to roll on a cylindrical screening net in the rotary screening cylinder, improving the screening efficiency of sand and being beneficial to discharging solid impurities such as stones and the like;
(3) The invention provides an automatic sand and stone raw material screening device for construction engineering, which improves the structural strength of a rotary screening cylinder by arranging a rib frame and inner supporting spokes, and meanwhile, the inner supporting spokes can play a role in stirring sand and stone, so that the screening efficiency is further improved; in addition, the low-position active neodymium magnet and the high-position active neodymium magnet are arranged on the rib frame, so that when the low-position active neodymium magnet and the high-position active neodymium magnet are subjected to repulsive force, the repulsive force is transmitted to the inner support spoke through the rib frame and then transmitted to the main rotating shaft, the shaking of the rotating screening cylinder is prevented, and the stability of the screening device is improved;
(4) The invention provides an automatic sand and stone raw material screening device for construction engineering, which is characterized in that along with the vibration of a vibrating screen, dirt dust mixed in sand on the vibrating screen is shaken off, and the treated sand passes through a discharge port discharge device, so that a plane screen is arranged under a cylindrical screening net, the sand is effectively prevented from falling out of the magnetic force driving vibrating screen, and the waste of raw materials is avoided;
(5) The invention provides an automatic sand and stone raw material screening device for construction engineering, which is characterized in that the length of a high-position spring vibrator is longer than that of a low-position spring vibrator, and a low-position sliding sleeve and a high-position sliding sleeve are arranged on the low-position spring vibrator and the high-position spring vibrator, so that the inclined arrangement of a vibrating screen is realized, sand is more favorably discharged out of the screening device through a discharge hole, sand is prevented from being accumulated on the vibrating screen, and screening efficiency is prevented from being influenced;
(6) The invention provides an automatic sand and stone raw material screening device for constructional engineering, which is characterized in that the repulsive force generated by a low-position active neodymium magnet, a high-position passive neodymium magnet and a high-position passive neodymium magnet is a non-contact force, so that mechanical abrasion is not generated, noise is reduced, and the service life of equipment is prolonged;
(7) The invention provides an automatic sand and stone raw material screening device for construction engineering, which is characterized in that a main rotating shaft is fixed through an upper fixed bearing and a bottom fixed bearing, so that slipping and shaking of the main rotating shaft are prevented, the running stability of the device is improved, the motor connecting support and the bearing connecting support are connected, the structural strength is improved, and the occupied space of the device is saved;
(8) The invention provides an automatic sand and stone raw material screening device for construction engineering, which prevents a throwing phenomenon from occurring when feeding materials into a rotary screening cylinder by arranging a feeding end cover and a feeding port, avoids the waste of sand and stone raw materials, and improves the cleanliness of a working environment;
(9) The invention provides an automatic sand and stone raw material screening device for construction engineering, which is characterized in that solid impurities such as stones and the like screened off are discharged outside the device through an inclined impurity discharging slideway, so that the impurity accumulation condition existing in the working process of the traditional screening machine is avoided, the impurities are effectively separated from sand, secondary pollution is prevented, dust and soil mixed in the sand on a vibrating screen are collected through a dust collecting disc, the environmental pollution is avoided, and the dust collecting disc is conveniently removed for cleaning through a sliding rail;
(10) The invention provides an automatic sand and stone raw material screening device for construction engineering, which realizes the transportation of the device through a screening device transportation vehicle, is convenient for changing a working site, improves the laying efficiency of the device and improves the integration level of the device.
Drawings
FIG. 1 is a perspective view of an automatic sand and stone raw material screening device for construction engineering, which is provided by the invention;
FIG. 2 is a top view of an automatic sand and stone raw material screening device for construction engineering according to the present invention;
FIG. 3 is a front view of an automatic sand and stone raw material screening device for construction engineering according to the present invention;
FIG. 4 is an enlarged view of the portion I of FIG. 3;
FIG. 5 is a front view of an inner rotating shaft sand rotating screening mechanism of the automatic sand raw material screening device for construction engineering, which is provided by the invention;
FIG. 6 is a top view of an inner rotating shaft sand rotating and screening mechanism of the automatic sand raw material screening device for construction engineering, provided by the invention;
FIG. 7 is a cross-sectional view taken along the line A-A in FIG. 6;
FIG. 8 is a perspective view of a magnetically driven vibratory screen of an automatic sand and stone material screening device for construction projects according to the present invention;
FIG. 9 is a front view of a magnetically driven vibratory screen of an automatic sand and stone material screening device for construction projects according to the present invention;
FIG. 10 is a right side view of a magnetically driven vibratory screen of an automatic sand and stone material screening device for construction projects according to the present invention;
FIG. 11 is a perspective view showing a combined state of a feeding structure, a impurity removing mechanism and a screening device transfer vehicle of the automatic screening device for sand and stone raw materials for construction engineering;
fig. 12 is a front view of a combined state of a feeding structure, a impurity removing mechanism and a screening device transfer vehicle of the automatic screening device for sand and stone raw materials for construction engineering.
Wherein, 100, the inner rotating shaft sand stone rotates the screening mechanism, 200, the magnetic force drives the vibrating screen, 300, the screening cylinder fixing structure, 400, the feeding structure, 500, the impurity removing mechanism, 600, the screening device transfer trolley, 101, the rotating screening cylinder, 102, the main rotating shaft, 103, the feeding end cover, 104, the rotating motor, 105, the coupling, 106, the rib frame, 107, the cylindrical screening net, 108, the inner supporting spoke, 109, the upper end fixing bearing, 110, the bottom fixing bearing, 111, the feeding port, 112, the low-order active neodymium magnet, 113, the high-order active neodymium magnet, 201, the bottom fixing frame, 202 and the vibrating screen, 203, dust collecting disc, 204, low slide bar, 205, high slide bar, 206, low spring vibrator, 207, high spring vibrator, 208, plane screen, 209, low sliding sleeve, 210, high sliding sleeve, 211, discharge port, 212, low passive neodymium magnet, 213, high passive neodymium magnet, 214, sliding track, 301, motor connecting bracket, 302, bearing connecting bracket, 303, end cover connecting bracket, 401, feeding pillar, 402, feeding funnel, 403, folding connecting arm, 501, tail frame, 502, impurity removing slideway, 601, bearing chassis, 602, driving wheel group, 603 and cab.
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all 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.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate orientation or positional relationships based on those shown in the drawings, merely to facilitate description of the invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
As shown in fig. 1 to 12, the invention provides an automatic sand and stone raw material screening device for construction engineering, which comprises an inner rotating shaft sand and stone rotating screening mechanism 100, a magnetic driving vibration screen 200, a screening cylinder fixing structure 300, a feeding structure 400, a trash discharging mechanism 500 and a screening device transfer trolley 600, wherein the magnetic driving vibration screen 200, the screening cylinder fixing structure 300, the feeding structure 400 and the trash discharging mechanism 500 are arranged on the screening device transfer trolley 600, the inner rotating shaft sand and stone rotating screening mechanism 100 is arranged on the screening cylinder fixing structure 300, and the magnetic driving vibration screen 200 is positioned below the inner rotating shaft sand and stone rotating screening mechanism 100; the inner rotating shaft sand and stone rotating screening mechanism 100 comprises a rotating screening cylinder 101, a main rotating shaft 102, a rotating motor 104 and a coupler 105, wherein the rotating motor 104 is arranged on a screening cylinder fixing structure 300, the main rotating shaft 102 is rotationally arranged on the screening cylinder fixing structure 300, the rotating screening cylinder 101 is fixedly connected to the main rotating shaft 102, and a low-position driving neodymium magnet 112 and a high-position driving neodymium magnet 113 are arranged on the side surface of the rotating screening cylinder 101 along a circumferential surface array; the magnetic force driven vibrating screen 200 comprises a bottom fixed frame 201 and a vibrating screen 202, the bottom fixed frame 201 is arranged on a screening device transfer vehicle 600, the vibrating screen 202 is slidably arranged on the bottom fixed frame 201, a low-position passive neodymium magnet 212 and a high-position passive neodymium magnet 213 are arranged on the vibrating screen 202, when the low-position active neodymium magnet 112 rotates to the bottommost position along with the rotary screening cylinder 101, the low-position passive neodymium magnet 212 is positioned right below the low-position active neodymium magnet 112, the magnetic properties of magnetic poles of the low-position active neodymium magnet 112 and the low-position passive neodymium magnet 212 are the same, when the high-position active neodymium magnet 113 rotates to the bottommost position along with the rotary screening cylinder 101, the high-position passive neodymium magnet 213 is positioned right below the high-position active neodymium magnet 113, and the magnetic properties of magnetic poles of the high-position active neodymium magnet 113 and the magnetic poles of the high-position passive neodymium magnet 213 are the same;
sand to be screened enters the rotary screening cylinder 101 through the feeding structure 400, the rotary motor 104 drives the main rotary shaft 102 to rotate through the coupler 105, the rotary screening cylinder 101 is driven to rotate, sand therein is turned over continuously when the rotary screening cylinder 101 rotates, sand falls onto the vibrating screen 202 through the rotary screening cylinder 101, and solid impurities such as stones stay in the rotary screening cylinder 101; because the low-order active neodymium magnet 112 rotates to the bottommost position along with the rotary sieving cylinder 101, the low-order passive neodymium magnet 212 is positioned under the low-order active neodymium magnet 112, the magnetic poles of the low-order active neodymium magnet 112 and the low-order passive neodymium magnet 212 close to each other are the same, and the high-order passive neodymium magnet 213 is positioned under the high-order active neodymium magnet 113, and the magnetic poles of the high-order active neodymium magnet 113 and the high-order passive neodymium magnet 213 are the same, repulsive force is generated among the low-order active neodymium magnet 112, the high-order active neodymium magnet 113, the high-order passive neodymium magnet 213 and the high-order passive neodymium magnet 213, and the repulsive force drives the vibrating screen 202 to move on the bottom fixing frame 201, so that the vibration of the vibrating screen 202 is realized, and soil dust mixed in sand on the vibrating screen 202 is shaken off.
The central axis of the rotary screening cylinder 101 coincides with the central axis of the main rotating shaft 102, two ends of the main rotating shaft 102 are positioned on two horizontal planes with different heights, the higher end of the main rotating shaft 102 is connected with an output shaft of the rotary motor 104 through a coupler 105, the rotary screening cylinder 101 comprises a rib frame 106, a cylindrical screening net 107 and an inner supporting spoke 108, the rib frame 106 is axially arranged on the cylindrical screening net 107, the inner supporting spoke 108 is arranged in the cylindrical screening net 107, and two ends of the inner supporting spoke 108 are fixedly connected to the rib frame 106 and the main rotating shaft 102 respectively; the low-level active neodymium magnet 112 is arranged at the lower end of the rib frame 106, and the high-level active neodymium magnet 113 is arranged at the higher end of the rib frame 106; the two ends of the main rotating shaft 102 are positioned on two horizontal planes with different heights, so that the inclined arrangement of the rotary screening cylinder 101 is realized, sand and stone are poured into the rotary screening cylinder 101 from a higher position, and the sand and stone under the action of gravity can roll on a cylindrical screening net 107 in the rotary screening cylinder 101, so that solid impurities such as stones and the like are discharged; by arranging the rib frames 106 and the inner support spokes 108, the structural strength of the rotary screening barrel 101 is improved, and meanwhile, the inner support spokes 108 can play a role in stirring sand and stone; in addition, the low-level active neodymium magnet 112 and the high-level active neodymium magnet 113 are arranged on the rib frame 106, so that when the low-level active neodymium magnet 112 and the high-level active neodymium magnet 113 are subjected to repulsive force, the repulsive force is transmitted to the inner support spoke 108 through the rib frame 106, and then transmitted to the main rotating shaft 102, and shaking of the rotary sieving cylinder 101 is prevented.
The vibrating screen 202 is provided with a plane screen 208, a low-level sliding sleeve 209, a high-level sliding sleeve 210 and a discharge hole 211, the plane screen 208 is positioned under the cylindrical screening net 107, the low-level sliding sleeve 209 and the high-level sliding sleeve 210 are arranged on the same side of the plane screen 208, a low-level passive neodymium magnet 212 and a high-level passive neodymium magnet 213 are arranged on the bottom fixed frame 201 at positions close to the high-level sliding sleeve 210, and one side of the plane screen 208 is provided with the discharge hole 211; along with the vibration of the vibrating screen 202, the dirt dust mixed in the sand on the vibrating screen 202 is shaken off, the treated sand is discharged out of the device through the discharge hole 211, and the plane screen 208 is arranged right below the cylindrical screening net 107, so that the sand is effectively prevented from falling out of the magnetic force driven vibrating screen 200.
The same side of the bottom fixed frame 201 is provided with a low-level slide bar 204 and a high-level slide bar 205, a low-level slide sleeve 209 is arranged on the low-level slide bar 204 in a sliding manner, a high-level slide sleeve 210 is arranged on the high-level slide bar 205 in a sliding manner, the length of the high-level slide bar 205 is longer than that of the low-level slide bar 204, a high-level spring vibrator 207 is arranged on the outer side of the high-level slide bar 205 in a surrounding manner, a low-level spring vibrator 206 is arranged on the outer side of the low-level slide bar 204 in a surrounding manner, two ends of the high-level spring vibrator 207 are respectively abutted against the bottom fixed frame 201 and the high-level slide sleeve 210, two ends of the low-level spring vibrator 206 are respectively abutted against the bottom fixed frame 201 and the low-level slide sleeve 209, and the length of the high-level spring vibrator 207 is longer than that of the low-level spring vibrator 206; the length of the high-level spring vibrator 207 is made to be longer than that of the low-level spring vibrator 206, and the low-level sliding sleeve 209 and the high-level sliding sleeve 210 are arranged on the low-level spring vibrator 206 and the high-level spring vibrator 207, so that the inclined arrangement of the vibrating screen 202 is realized, sand is more favorably discharged out of the screening device through the discharge hole 211, sand is prevented from accumulating on the vibrating screen 202, and screening efficiency is prevented from being influenced; as the rotary sieving cylinder 101 rotates, the low-level active neodymium magnet 112 and the high-level active neodymium magnet 113 continuously approach to and separate from the low-level passive neodymium magnet 212 and the high-level passive neodymium magnet 213, when the low-level active neodymium magnet 112 and the high-level active neodymium magnet 113 approach to the high-level passive neodymium magnet 213 and the high-level passive neodymium magnet 213, repulsive force is generated due to the same magnetism, the generated repulsive force acts on the high-level sliding sleeve 210 on the higher side of the vibrating screen 202, so that the higher side of the vibrating screen 202 moves downwards, and simultaneously compresses the high-level spring vibrator 207, and when the low-level active neodymium magnet 112 and the high-level active neodymium magnet 113 separate from the high-level passive neodymium magnet 213 and the high-level passive neodymium magnet 213, the repulsive force disappears, and the high-level spring vibrator 207 rebounds to drive the vibrating screen 202 to vibrate up and down relative to the bottom fixed frame 201, thereby vibrating sand on the planar screen 208 and shaking mixed soil dust therein; since the repulsive force generated by the low-order active neodymium magnet 112, the high-order active neodymium magnet 113, the high-order passive neodymium magnet 213, and the high-order passive neodymium magnet 213 is a non-contact force, mechanical wear does not occur.
The main rotating shaft 102 is also provided with an upper end fixed bearing 109 and a bottom end fixed bearing 110, the upper end fixed bearing 109 is rotatably arranged at the higher end of the main rotating shaft 102, the bottom end fixed bearing 110 is rotatably arranged at the lower end of the main rotating shaft 102, the screening cylinder fixing structure 300 comprises a motor connecting bracket 301 and a bearing connecting bracket 302, the motor connecting bracket 301 and the bearing connecting bracket 302 are arranged on the screening device transfer trolley 600, the bottom end fixed bearing 110 and the upper end fixed bearing 109 are arranged on the bearing connecting bracket 302, and the rotating motor 104 is arranged on the motor connecting bracket 301; the main rotating shaft 102 is fixed through the upper end fixed bearing 109 and the bottom end fixed bearing 110, slipping and shaking of the main rotating shaft 102 are prevented, the motor connecting support 301 and the bearing connecting support 302 are connected, and structural strength is improved.
The screening cylinder fixing structure 300 further comprises an end cover connecting bracket 303, the inner rotating shaft sand and stone rotary screening mechanism 100 further comprises a feeding end cover 103, the feeding end cover 103 is arranged on the end cover connecting bracket 303, the feeding end cover 103 is attached to the higher end face of the rotary screening cylinder 101, and a feeding port 111 is formed in the top of the feeding end cover 103; by providing the feed end cap 103 and the feed inlet 111, a throwing phenomenon is prevented from occurring when feeding into the rotary screen cylinder 101.
The feeding structure 400 comprises a feeding support column 401, a feeding funnel 402 and a folding connecting arm 403, wherein the feeding support column 401 is arranged on the screening device transfer trolley 600, the folding connecting arm 403 is arranged on the feeding support column 401 in a sliding mode, the feeding funnel 402 is arranged on the folding connecting arm 403 in a clamping mode, and the bottom end of the feeding funnel 402 is arranged in the feeding hole 111 in a clamping mode; the fixing of the feeding funnel 402 is realized through the feeding support column 401 and the folding connecting arm 403, so that the disassembly and replacement of the feeding funnel 402 are facilitated, and the rotary screening cylinder 101 is also convenient to detach and clean.
The impurity removing mechanism 500 is located at a position close to the lower end of the rotary screening cylinder 101, the impurity removing mechanism 500 comprises a tail frame 501 and an impurity removing slide way 502, the tail frame 501 is arranged on the screening device transfer vehicle 600, the impurity removing slide way 502 is arranged on the tail frame 501, the impurity removing slide way 502 is an inclined slide way, and the top of the impurity removing slide way 502 is attached to the lower end face of the rotary screening cylinder 101; through setting up the impurity removal slide 502 of slope, outside the solid impurity such as stone that will screen off is discharged the device, avoided traditional screening machinery during operation to exist impurity pile up the condition, separate impurity and sand effectively.
The magnetic driving vibration screen 200 further comprises a dust collecting disc 203, a sliding rail 214 is arranged on the bottom fixed frame 201, the dust collecting disc 203 is arranged on the sliding rail 214 in a sliding manner, and the dust collecting disc 203 is positioned under the low-position passive neodymium magnet 212; dust and soil mixed in sand on the vibrating screen 202 are collected through the dust collecting disc 203, and the dust collecting disc 203 is conveniently removed for cleaning through the sliding track 214.
The screening device transfer trolley 600 comprises a bearing chassis 601, a driving wheel set 602 and a cab 603, wherein the bearing chassis 601 is connected with the cab 603, the driving wheel set 602 is arranged at the bottoms of the bearing chassis 601 and the cab 603, and the bottom fixing frame 201 is arranged on the bearing chassis 601; the transfer of the device is achieved through the screening device transfer truck 600, facilitating replacement of the work site.
When the sand screening device is specifically used, firstly, the rotary motor 104 is started, the rotary motor 104 drives the main rotary shaft 102 to rotate through the coupler 105, the main rotary shaft 102 drives the rotary screening cylinder 101 to synchronously rotate through the internal support spokes 108 when rotating, sand and stone to be screened are poured into the feeding hopper 402, enter the rotary screening cylinder 101 through the feeding hopper 402 through the feeding port 111, continuously turn over on the cylindrical screening net 107 along with the rotation of the rotary screening cylinder 101, sand falls onto the vibrating screen 202 below through the cylindrical screening net 107, and stones and other impurities roll down along the inside of the inclined rotary screening cylinder 101 and are discharged to the outside of the device through the impurity discharging slideway 502;
with the rotation of the rotary sieving cylinder 101, the low-order active neodymium magnet 112 and the high-order active neodymium magnet 113 on the rib frame 106 are close to the low-order passive neodymium magnet 212 and the high-order passive neodymium magnet 213 when rotating to the bottommost end, and the rib frame 106 is fixed on the main rotating shaft 102 through the inner supporting spoke 108 due to the repulsive force generated by the same magnetism, so that the rotary sieving cylinder 101 cannot displace, the generated repulsive force acts on the high-order sliding sleeve 210 on the higher side of the vibrating screen 202, so that the higher side of the vibrating screen 202 moves downwards, and simultaneously the high-order spring vibrator 207 is compressed, when the low-order active neodymium magnet 112 and the high-order active neodymium magnet 113 are far away from the high-order passive neodymium magnet 213 and the high-order passive neodymium magnet 213, the repulsive force disappears, the high-order spring vibrator 207 rebounds, the vibrating screen 202 is driven to do vibrating motion relative to the bottom fixed frame 201, along with the rapid rotation of the rotary screening cylinder 101, the low-order active neodymium magnet 112 and the high-order active neodymium magnet 113 are continuously close to and far away from the low-order passive neodymium magnet 212 and the high-order passive neodymium magnet 213, the bottom fixed frame 201 is enabled to do vibrating motion continuously, sand on the plane screen 208 is enabled to vibrate up and down, mixed soil dust falls into the dust collecting tray 203 through the plane screen 208, meanwhile, the sand on the plane screen 208 gradually slides downwards along with the vibrating motion of the bottom fixed frame 201, and discharging is completed through the discharging hole 211.
The whole working flow of the invention is just the above, and the step is repeated when the invention is used next time.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
The invention and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the invention as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present invention.
Claims (10)
1. Automatic screening plant of grit raw materials for building engineering, its characterized in that: the novel screening device comprises an inner-rotation shaft sand and stone rotary screening mechanism (100), a magnetic driving vibration screen (200), a screening barrel fixing structure (300), a feeding structure (400), a impurity discharging mechanism (500) and a screening device transfer trolley (600), wherein the magnetic driving vibration screen (200), the screening barrel fixing structure (300), the feeding structure (400) and the impurity discharging mechanism (500) are arranged on the screening device transfer trolley (600), the inner-rotation shaft sand and stone rotary screening mechanism (100) is arranged on the screening barrel fixing structure (300), and the magnetic driving vibration screen (200) is positioned below the inner-rotation shaft sand and stone rotary screening mechanism (100);
the inner rotating shaft sand and stone rotary screening mechanism (100) comprises a rotary screening cylinder (101), a main rotating shaft (102), a rotary motor (104) and a coupler (105), wherein the rotary motor (104) is arranged on a screening cylinder fixing structure (300), the main rotating shaft (102) is rotationally arranged on the screening cylinder fixing structure (300), the rotary screening cylinder (101) is fixedly connected to the main rotating shaft (102), and a low-position active neodymium magnet (112) and a high-position active neodymium magnet (113) are arranged on the side surface of the rotary screening cylinder (101) along a circumferential array; the magnetic force driven vibrating screen (200) comprises a bottom fixing frame (201) and a vibrating screen (202), wherein the bottom fixing frame (201) is arranged on a screening device transfer trolley (600), the vibrating screen (202) is arranged on the bottom fixing frame (201) in a sliding mode, a low-position driven neodymium magnet (212) and a high-position driven neodymium magnet (213) are arranged on the vibrating screen (202), when the low-position driven neodymium magnet (112) rotates to the bottommost position along with the rotary screening cylinder (101), the low-position driven neodymium magnet (212) is located under the low-position driven neodymium magnet (112), the magnetism of a magnetic pole, which is close to the low-position driven neodymium magnet (212), of the low-position driven neodymium magnet (112) is the same, and when the high-position driven neodymium magnet (113) rotates to the bottommost position along with the rotary screening cylinder (101), the magnetism of the magnetic pole, which is close to the high-position driven neodymium magnet (113) is the same.
2. The automatic sand and stone raw material screening device for construction engineering according to claim 1, wherein: the central axis of the rotary screening cylinder (101) coincides with the central axis of the main rotating shaft (102), two ends of the main rotating shaft (102) are located on two horizontal planes with different heights, the higher end of the main rotating shaft (102) is connected with an output shaft of the rotary motor (104) through a coupler (105), the rotary screening cylinder (101) comprises a rib frame (106), a cylindrical screening net (107) and inner supporting spokes (108), the rib frame (106) is axially arranged on the cylindrical screening net (107), the inner supporting spokes (108) are arranged inside the cylindrical screening net (107), and two ends of the inner supporting spokes (108) are fixedly connected to the rib frame (106) and the main rotating shaft (102) respectively; the low-level active neodymium magnet (112) is arranged at the lower end of the rib frame (106), and the high-level active neodymium magnet (113) is arranged at the higher end of the rib frame (106).
3. The automatic sand and stone raw material screening device for construction engineering according to claim 2, wherein: be equipped with plane screen cloth (208), low level sliding sleeve (209), high level sliding sleeve (210) and discharge gate (211) on shale shaker (202), plane screen cloth (208) are located cylindric screening net (107) under, low level sliding sleeve (209) and high level sliding sleeve (210) are located on the same side of plane screen cloth (208), the position that is close to high level sliding sleeve (210) on bottom fixed frame (201) is located to low level passive neodymium magnet (212) and high level passive neodymium magnet (213), be equipped with discharge gate (211) on one side of plane screen cloth (208).
4. A sand and stone raw material automatic screening device for construction engineering according to claim 3, wherein: the novel low-level spring oscillator is characterized in that a low-level sliding rod (204) and a high-level sliding rod (205) are arranged on the same side edge of the bottom fixing frame (201), the low-level sliding sleeve (209) is arranged on the low-level sliding rod (204) in a sliding mode, the high-level sliding sleeve (210) is arranged on the high-level sliding rod (205) in a sliding mode, the length of the high-level sliding rod (205) is larger than that of the low-level sliding rod (204), a high-level spring oscillator (207) is arranged on the outer side of the high-level sliding rod (205) in a surrounding mode, a low-level spring oscillator (206) is arranged on the outer side of the low-level sliding rod (204) in a surrounding mode, two ends of the high-level spring oscillator (207) are respectively abutted to the bottom fixing frame (201) and the high-level sliding sleeve (210), and two ends of the low-level spring oscillator (206) are respectively abutted to the bottom fixing frame (201) and the low-level sliding sleeve (209), and the length of the high-level spring oscillator (207) is larger than that of the low-level spring oscillator (206).
5. The automatic sand and stone raw material screening device for construction engineering according to claim 4, wherein: still be equipped with upper end fixed bearing (109) and bottom fixed bearing (110) on main pivot (102), upper end fixed bearing (109) rotate and locate higher one end on main pivot (102), bottom fixed bearing (110) rotate and locate lower one end on main pivot (102), screening section of thick bamboo fixed knot constructs (300) including motor linking bridge (301) and bearing linking bridge (302), on screening plant transfer car (600) is located to motor linking bridge (301) and bearing linking bridge (302), on bearing linking bridge (302) are located to bottom fixed bearing (110) and upper end fixed bearing (109), on motor linking bridge (301) are located in rotation motor (104).
6. The automatic sand and stone raw material screening device for construction engineering according to claim 5, wherein: screening section of thick bamboo fixed knot constructs (300) still include end cover linking bridge (303), inner rotating shaft grit rotates screening mechanism (100) still includes feeding end cover (103), feeding end cover (103) are located on end cover linking bridge (303), feeding end cover (103) laminating is on the higher terminal surface of rotating screening section of thick bamboo (101), feed inlet (111) have been seted up at the top of feeding end cover (103).
7. The automatic sand and stone raw material screening device for construction engineering according to claim 6, wherein: the feeding structure (400) comprises a feeding support column (401), a feeding funnel (402) and a folding connecting arm (403), wherein the feeding support column (401) is arranged on a screening device transfer trolley (600), the folding connecting arm (403) is slidably arranged on the feeding support column (401), the feeding funnel (402) is clamped on the folding connecting arm (403), and the bottom end of the feeding funnel (402) is clamped in a feeding port (111).
8. The automatic sand and stone raw material screening device for construction engineering according to claim 7, wherein: the impurity removing mechanism (500) is located at a position close to the lower end of the rotary screening cylinder (101), the impurity removing mechanism (500) comprises a tail frame (501) and an impurity removing slide way (502), the tail frame (501) is arranged on a screening device transfer trolley (600), the impurity removing slide way (502) is arranged on the tail frame (501), the impurity removing slide way (502) is an inclined slide way, and the top of the impurity removing slide way (502) is attached to the lower end face of the rotary screening cylinder (101).
9. The automatic sand and stone raw material screening device for construction engineering according to claim 8, wherein: the magnetic force driving vibration screen (200) further comprises a dust collecting disc (203), a sliding rail (214) is arranged on the bottom fixing frame (201), the dust collecting disc (203) is arranged on the sliding rail (214) in a sliding mode, and the dust collecting disc (203) is located under the low-position passive neodymium magnet (212).
10. The automatic sand and stone raw material screening device for construction engineering according to claim 9, wherein: the screening device transfer trolley (600) comprises a bearing chassis (601), a driving wheel set (602) and a cab (603), wherein the bearing chassis (601) is connected with the cab (603), the driving wheel set (602) is arranged at the bottoms of the bearing chassis (601) and the cab (603), and the bottom fixing frame (201) is arranged on the bearing chassis (601).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311112054.2A CN116833096A (en) | 2023-08-31 | 2023-08-31 | Automatic sand and stone raw material screening device for constructional engineering |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311112054.2A CN116833096A (en) | 2023-08-31 | 2023-08-31 | Automatic sand and stone raw material screening device for constructional engineering |
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| CN212524940U (en) * | 2020-12-30 | 2021-02-12 | 常州速稳智能机械有限公司 | Piezoelectric driving type vibration mechanism |
| CN218251361U (en) * | 2022-09-16 | 2023-01-10 | 墣锦环境工程（海南）有限公司 | A screening plant for on-spot collection humus soil |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103769357A (en) * | 2012-10-18 | 2014-05-07 | 江苏康宝制药有限公司 | Vibrating screen |
| CN208427339U (en) * | 2018-04-08 | 2019-01-25 | 北京旭鑫仪器设备有限公司 | A kind of pulp classifier of 3 D electromagnetic driving operation logic |
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