CN116037449B - Automatic sand screening device of circulating type building engineering - Google Patents
Automatic sand screening device of circulating type building engineering Download PDFInfo
- Publication number
- CN116037449B CN116037449B CN202310035557.8A CN202310035557A CN116037449B CN 116037449 B CN116037449 B CN 116037449B CN 202310035557 A CN202310035557 A CN 202310035557A CN 116037449 B CN116037449 B CN 116037449B
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- Prior art keywords
- end cover
- screen
- guide cylinder
- cylinder
- push plate
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- 239000004576 sand Substances 0.000 title claims abstract description 90
- 238000012216 screening Methods 0.000 title claims abstract description 42
- 239000004575 stone Substances 0.000 claims description 35
- 230000005540 biological transmission Effects 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 10
- 239000003638 chemical reducing agent Substances 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 3
- 125000004122 cyclic group Chemical group 0.000 claims 1
- 239000010813 municipal solid waste Substances 0.000 description 39
- 238000000034 method Methods 0.000 description 16
- 238000001914 filtration Methods 0.000 description 10
- 230000009194 climbing Effects 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002994 raw material Substances 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
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/18—Drum screens
- B07B1/22—Revolving drums
- B07B1/24—Revolving drums with fixed or moving interior agitators
-
- 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
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses an automatic sand screening device for a circulating type building engineering, which belongs to the technical field of building engineering and comprises a base and a screen cylinder, wherein the screen cylinder is arranged above the base in a tilting state with low left and high right; the screen cylinder consists of a left end cover, a screen and a right end cover; the left end cover is fixedly arranged on the base through a support column, the right end cover is movably arranged with the base, and the screen mesh is sleeved between the left end cover and the right end cover; the top end of the right end cover is fixedly connected with a feed hopper; the center of the left end cover is fixedly connected with a guide cylinder, and a filter hole is formed in the guide cylinder; the right end of the guide cylinder penetrates through the right end cover and extends out of the right end cover; the top of one end, close to the left end cover, of the guide cylinder is provided with a feed inlet, and the bottom of one end, far away from the left end cover, of the guide cylinder is provided with a discharge outlet; a first feeding component is arranged in the screen cylinder; a second feeding assembly is arranged in the guide cylinder; the invention can greatly improve the screening efficiency of sand.
Description
Technical Field
The invention relates to the technical field of constructional engineering, in particular to an automatic sand screening device for a circulating type constructional engineering.
Background
Sand is an indispensable basic raw material in the construction field, and various impurities such as broken stone, garbage and the like exist in the sand; the size of the sand particles used in different constructions is also subject to stringent requirements, which results in the need for screening after collection of the sand.
There are many drum-type screening machines, and when in use, the drum-type screening machine is divided into two types, one is provided with openings at two ends of the drum, and the other is provided with no openings at two ends of the drum; when the open type roller screening machine is used, sand is poured into the roller from the upper end of the inclined roller, sand conforming to the specification falls off the roller, sand, broken stone and the like not conforming to the specification fall off the roller from the lower end of the roller, and only a small amount of sand can be poured each time in the screening mode, because once the sand is poured too much, part of the sand can fall off the lower end of the roller without falling off the roller, and the broken stone garbage and the like are driven to fall off the lower end of the roller, so that incomplete sand collection is caused, and the screening is needed again later; when the roller with two closed ends is adopted for screening sand, the gravels and the garbage in the roller are piled more and more along with the gradual increase of the sand amount, the gravels and the garbage are piled at the bottom of the roller and easily block the filtering holes on the roller, and the operation of screening can only be stopped firstly when the gravels and the garbage are to be cleaned, and then the gravels and the garbage are discharged and then the sand screening is continued; this results in a lower efficiency of sand screening and is not conducive to large-scale sand screening.
Based on the above, the invention designs an automatic sand screening device for the circulating type building engineering, so as to solve the problems.
Disclosure of Invention
The invention aims to provide an automatic sand screening device for a circulating type building engineering, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the automatic sand screening device for the circulating type building engineering comprises a base and a screen cylinder, wherein the screen cylinder is arranged above the base in a tilting state with low left and high right; the screen cylinder consists of a left end cover, a screen and a right end cover; the left end cover is fixedly arranged on the base through a support column, the right end cover is movably arranged with the base, and the screen mesh is sleeved between the left end cover and the right end cover; the top end of the right end cover is fixedly connected with a feed hopper; the center of the left end cover is fixedly connected with a guide cylinder, and a filter hole is formed in the guide cylinder; the right end of the guide cylinder penetrates through the right end cover and extends out of the right end cover; the top of one end, close to the left end cover, of the guide cylinder is provided with a feed inlet, and the bottom of one end, far away from the left end cover, of the guide cylinder is provided with a discharge outlet; a first feeding component is arranged in the screen cylinder; the first feeding component is used for conveying unqualified sand in the screen cylinder into the guide cylinder; a second feeding assembly is arranged in the guide cylinder and is used for conveying unqualified sand and stones in the guide cylinder to a discharge hole for discharge; the base is also provided with a driving assembly, and the driving assembly is used for driving the screen and the second feeding assembly to work.
As a further scheme of the invention, the first feeding assembly comprises a first push plate, the first push plate is fixedly connected to the inner wall of the screen, and a second push plate is connected to the first push plate in a sliding manner; the left side wall and the right side wall of the second push plate are both in sliding connection with a slide column, the slide column is both fixedly connected with a first spring, and one end of the first spring, which is far away from the slide column, is both fixedly connected with the second push plate; the inner walls of the left end cover and the right end cover are respectively provided with a first chute, and the sliding column can move in the first chute; the first sliding groove is used for driving the sliding column to drive the second pushing plate to move towards one side close to the guide cylinder on the first pushing plate.
As a further scheme of the invention, the second pushing plate and the first pushing plate are both filter plates.
As a further scheme of the invention, a second spring is fixedly connected to the second push plate, and the bottom end of the second spring is fixedly connected with the first push plate.
As a further aspect of the present invention, the second feeding assembly includes a spiral blade rotatably connected to the guide cylinder.
As a further scheme of the invention, the driving assembly comprises a motor, and the motor is fixedly arranged on the base through a motor seat; the output shaft of the motor is fixedly connected with a first belt pulley, and the first belt pulley is in transmission connection with the screen through a first transmission belt; the first belt pulley is connected with a second belt pulley through a speed reducer in a transmission manner, the second belt pulley is connected with a third belt pulley through a second transmission belt in a transmission manner, and the third belt pulley is fixedly connected with a rotating shaft of the helical blade.
As a further scheme of the invention, the right end cover is fixedly connected with a material guide plate, and the material guide plate is positioned right below the discharge hole.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, through the arrangement of the screen cylinder, the material guiding cylinder, the first push plate, the second push plate, the sliding column and the first sliding chute, the screen cylinder can continuously screen sand, broken stone and garbage can be intermittently conveyed into the material guiding cylinder by the first push plate and the second push plate in the screening process, the broken stone and garbage can be prevented from accumulating in the screen cylinder to block the screen cylinder, and the screen cylinder can perform continuous sand screening work better; set up the filtration pore on with the guide cylinder, can make by first push pedal and the sand in the guide cylinder of second push pedal transport also can drop in the screen cylinder from the guide cylinder, in clearance screen cylinder in rubble and rubbish, can also guarantee that qualified sand can fall out from the screen cylinder completely, can improve screening sand efficiency greatly.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the general structure of the present invention (another view);
FIG. 3 is a schematic elevational cross-sectional view of the screen cylinder, guide cylinder and helical blade configuration of the present invention;
FIG. 4 is a schematic cross-sectional view of a first push plate, a second spring and a screen structure according to the present invention;
FIG. 5 is a schematic diagram showing the positional relationship and connection relationship between a strut and a first chute according to the present invention;
FIG. 6 is a schematic cross-sectional view of the second thrust plate, spool and first spring of the present invention.
In the drawings, the list of components represented by the various numbers is as follows:
base 1, screen cylinder 2, left end cover 201, screen cloth 202, right end cover 203, feeder hopper 3, guide cylinder 4, support column 5, feed inlet 6, discharge gate 7, first push plate 8, second push plate 9, slide column 10, first spring 11, first spout 12, second spring 13, helical blade 14, motor 15, motor cabinet 16, first belt pulley 17, first drive belt 18, reduction gear 19, second belt pulley 20, second drive belt 21, third belt pulley 22, and guide plate 23.
Detailed Description
Referring to fig. 1-6, the present invention provides a technical solution: the automatic sand screening device for the circulating type building engineering comprises a base 1 and a screen drum 2, wherein the screen drum 2 is arranged above the base 1 in a tilting state with low left and high right; the screen cylinder 2 consists of a left end cover 201, a screen 202 and a right end cover 203; the left end cover 201 is fixedly arranged on the base 1 through the support column 5, the right end cover 203 is movably arranged with the base 1, and the screen 202 is sleeved between the left end cover 201 and the right end cover 203; the top end of the right end cover 203 is fixedly connected with a feed hopper 3; the center of the left end cover 201 is fixedly connected with a guide cylinder 4, and a filter hole is formed in the guide cylinder 4; the right end of the guide cylinder 4 passes through the right end cover 203 and extends out of the right end cover 203; a feed inlet 6 is formed in the top of one end, close to the left end cover 201, of the guide cylinder 4, and a discharge outlet 7 is formed in the bottom of one end, far away from the left end cover 201, of the guide cylinder 4; a first feeding component is arranged in the screen drum 2; the first feeding component is used for conveying unqualified sand in the screen cylinder 2 into the guide cylinder 4; a second feeding assembly is arranged in the guide cylinder 4 and is used for conveying unqualified sand and stones in the guide cylinder 4 to a discharge hole 7 for discharge; the base 1 is also provided with a driving assembly, and the driving assembly is used for driving the screen 202 and the second feeding assembly to work.
The first feeding assembly comprises a first push plate 8, the first push plate 8 is fixedly connected to the inner wall of the screen 202, and a second push plate 9 is slidably connected to the first push plate 8; the left side wall and the right side wall of the second push plate 9 are both in sliding connection with a slide column 10, the slide column 10 is both fixedly connected with a first spring 11, and one end of the first spring 11, which is far away from the slide column 10, is both fixedly connected with the second push plate 9; the inner walls of the left end cover 201 and the right end cover 203 are respectively provided with a first chute 12, and the sliding column 10 can move in the first chute 12; the first sliding groove 12 is used for driving the sliding column 10 to drive the second pushing plate 9 to move towards the side close to the guide cylinder 4 on the first pushing plate 8.
When the scheme is put into practical use, firstly, the sand screening device is conveyed to a place where sand screening work is required, the base 1 is stably placed on the bottom surface, and then sand is continuously added into the screen drum 2 from the feed hopper 3; then, starting the driving assembly to drive the screen 202 to rotate; as shown in fig. 3, the screen cylinder 2 is composed of a left end cover 201, a screen 202 and a right end cover 203, the screen 202 can be sleeved between the left end cover 201 and the right end cover 203, the screen 202 can be conveniently detached, and when sand with different specifications is required to be screened, the screen 202 is only required to be replaced, so that the practicability of the sand screening device of the invention can be greatly improved; the right end cover 203 keeps a static state when the screen 202 rotates, so that sand can be continuously added into the screen drum 2; in the process of driving the screen 202 to rotate, as shown in fig. 4, the screen 202 drives the first push plate 8 to synchronously rotate, and the first push plate 8 drives the second push plate 9 to synchronously rotate; the first pushing plate 8 and the second pushing plate 9 can drive sand in the screen drum 2 to shake in the process of rotating along with the screen 202, so that qualified sand can be accelerated to drop out of the screen 202; as shown in fig. 3, the screen cylinder is set to incline leftwards, and the sand, broken stone and garbage can move towards the left end cover 201 once in the process of driving the sand to shake by the rotation of the first push plate 8 and the second push plate 9; the second push plate 9 drives the sliding column 10 to move in the first sliding groove 12 in the rotating process, and the first sliding groove 12 plays a guiding role on the sliding column 10; as shown in fig. 5, the lower half section of the first chute 12 is a quarter ellipse, the upper half section is a quarter circle, and the radius of the circle of the upper half section of the first chute 12 is equal to the minor axis of the lower half ellipse; when the slide column 10 rotates anticlockwise in the first sliding groove 12 from the position shown in fig. 5, the slide column 10 moves upwards in the elliptical notch, the slide column 10 moves slowly to the side close to the central axis of the screen 202, and the slide column 10 drives the second push plate 9 to slide on the first push plate 8; it should be noted that, the first sliding groove 12 is simultaneously formed on the left end cover 201 and the right end cover 203 to make the second push plate 9 move more smoothly; when the sliding column 10 moves to the junction of the elliptical groove and the circular groove, the second push plate 9 moves to the farthest distance, and at the moment, one end of the second push plate 9, which is close to the guide cylinder 4, is attached to the guide cylinder 4; when the screen 202 continues to rotate, the slide column 10 moves in the circular groove with the first sliding groove 12, at the moment, one end of the second push plate 9, which is close to the guide cylinder 4, keeps a state of being attached to the guide cylinder 4, and after one end of the second push plate 9, which is close to the guide cylinder 4, moves to be right above the feed inlet 6, broken stone and garbage can slide into the guide cylinder 4 from the feed inlet 6 along the second push plate 9; the second push plate 9 and the first push plate 8 continue to rotate along with the screen 202; as shown in fig. 5, the top and bottom ends of the first sliding groove 12 are smoothly connected with the right inner wall of the left end cover 201 by adopting chamfers, when the sliding column 10 slides out of the circular groove from the top end of the first sliding groove 12, after the limit of the side wall of the first sliding groove 12 is lost, the second push plate 9 returns to the initial position shown in fig. 5 under the action of self gravity when continuing to rotate, and the sliding column 10 is also inserted into the first sliding groove 12 under the action of the elasticity of the first spring 11; the broken stone and the garbage in the screen drum 2 gradually slide to the left end of the screen 202, the broken stone and the garbage are slowly conveyed upwards by the first push plate 8 and the second push plate 9 in the continuous rotation process, and then the broken stone and the garbage fall into the guide drum 4 after being conveyed to the position above the feed inlet 6; it should be noted that the first push plate 8 and the second push plate 9 will certainly convey part of the qualified sand into the guide cylinder 4 together; the driving assembly drives the screen 202 to rotate and simultaneously drives the second conveying assembly to work, the second conveying assembly can convey broken stones, garbage and sand rightwards, the sand can fall into the screen cylinder 2 again from the filtering holes formed in the guide cylinder 4 in the conveying process, and as the guide cylinder 4 is obliquely arranged, the broken stones and the garbage move in a climbing manner when conveyed rightwards in the guide cylinder 4, the sand is small in size, and can fall from the filtering holes of the guide cylinder 4 more easily in the climbing rolling process, so that qualified sand can fall out of the screen 202 completely; when the second conveying component conveys the crushed stone and the garbage to the right end of the guide cylinder 4, the crushed stone and the garbage can fall out from the discharge hole 7; according to the invention, through the arrangement of the screen cylinder 2, the guide cylinder 4, the first push plate 8, the second push plate 9, the slide column 10 and the first chute 12, sand can be continuously screened by the screen cylinder 2, broken stone and garbage can be intermittently conveyed into the guide cylinder 4 by the first push plate 8 and the second push plate 9 in the screening process, the broken stone and garbage can be prevented from being accumulated in the screen cylinder 2 to block the screen cylinder, and the screen cylinder 2 can perform continuous sand screening work better; set up the filtration pore on with guide cylinder 4, can make by first push pedal 8 and the sand in the guide cylinder 4 of second push pedal 9 transport also can drop in the screen cylinder 2 from guide cylinder 4, in clearance screen cylinder 2 in rubble and rubbish, can also guarantee that qualified sand can fall out from screen cylinder 2 completely, can improve screening sand efficiency greatly.
As a further solution of the present invention, the second pushing plate 9 and the first pushing plate 8 are both filter plates.
Above-mentioned scheme is when throwing into in-service use, through setting up second push pedal 9 and first push pedal 8 as the filter, and first push pedal 8 and second push pedal 9 can follow first push pedal 8 and second push pedal 9's filtration pore whereabouts of qualified sand in the in-process of upwards transporting rubble and rubbish, can significantly reduce first push pedal 8 and second push pedal 9 and transport the quantity in sand to the guide cylinder 4, can accelerate the sand and drop from screen cylinder 2, can improve the efficiency of screening sand greatly.
As a further scheme of the invention, a second spring 13 is fixedly connected to the second push plate 9, and the bottom end of the second spring 13 is fixedly connected with the first push plate 8.
When the proposal is put into practical use, when the slide column 10 moves in the first slide groove 12 to drive the second push plate 9 to slide on the first push plate 8, the second push plate 9 can drive one end of the second spring 13 to synchronously move, so that the second spring 13 is lengthened; when the first push plate 8 and the second push plate 9 convey broken stones and garbage into the guide cylinder 4, after the sliding column 10 slides out from the top end of the first sliding groove 12, after the limit of the first sliding groove 12 is lost, the second push plate 9 can quickly reset under the action of the elastic force of the second spring 13, the second push plate 9 can strike the inner wall of the screen cylinder 2, so that residual sand in the filtering holes of the screen 202 can fall out, the screen 202 can be prevented from being blocked by sand, and the sand screening efficiency can be greatly improved.
As a further aspect of the invention, the second feeding assembly comprises a helical blade 14, the helical blade 14 being in rotational connection with the guide cylinder 4.
When the scheme is put into practical use, the driving assembly drives the spiral blades 14 to synchronously rotate when driving the screen 202 to rotate, and the spiral blades 14 rotate to convey broken stone and garbage in the guide cylinder 4 to the right.
As a further scheme of the invention, the driving assembly comprises a motor 15, and the motor 15 is fixedly arranged on the base 1 through a motor seat 16; the output shaft of the motor 15 is fixedly connected with a first belt pulley 17, and the first belt pulley 17 is in transmission connection with a screen 202 through a first transmission belt 18; the first belt pulley 17 is in transmission connection with a second belt pulley 20 through a speed reducer 19, the second belt pulley 20 is in transmission connection with a third belt pulley 22 through a second transmission belt 21, and the third belt pulley 22 is fixedly connected with the rotating shaft of the helical blade 14.
When the scheme is put into practical use, when the driving assembly works, the motor 14 drives the first belt pulley 17 to rotate, the first belt pulley 17 drives the screen 202 to synchronously rotate through the first transmission belt 18, the first belt pulley 17 also drives the second belt pulley 20 to rotate through the speed reducer 19, the second belt pulley 20 drives the third belt pulley 22 to rotate through the second transmission belt 21, and the third belt pulley 22 drives the helical blade 14 to rotate so as to convey crushed stone and garbage; the speed reducer 19 can enable the spiral blade to rotate slowly, so that qualified sand in the guide cylinder 4 can have enough time to fall from the guide cylinder 4.
As a further scheme of the present invention, the right end cover 203 is fixedly connected with a material guiding plate 23, and the material guiding plate 23 is located right below the material outlet 7.
When the scheme is put into practical use, the broken stone and the garbage can be collected more completely through the arrangement of the material guide plate 23, and the broken stone and the garbage can be prevented from being mixed into sand again.
Working principle: firstly, carrying a sand screening device to a place where sand screening work is required, enabling a base 1 to be stably placed on the bottom surface, and then continuously adding sand into a screen drum 2 from a feed hopper 3; then, starting the driving assembly to drive the screen 202 to rotate; as shown in fig. 3, the screen cylinder 2 is composed of a left end cover 201, a screen 202 and a right end cover 203, the screen 202 can be sleeved between the left end cover 201 and the right end cover 203, the screen 202 can be conveniently detached, and when sand with different specifications is required to be screened, the screen 202 is only required to be replaced, so that the practicability of the sand screening device of the invention can be greatly improved; the right end cover 203 keeps a static state when the screen 202 rotates, so that sand can be continuously added into the screen drum 2; in the process of driving the screen 202 to rotate, as shown in fig. 4, the screen 202 drives the first push plate 8 to synchronously rotate, and the first push plate 8 drives the second push plate 9 to synchronously rotate; the first pushing plate 8 and the second pushing plate 9 can drive sand in the screen drum 2 to shake in the process of rotating along with the screen 202, so that qualified sand can be accelerated to drop out of the screen 202; as shown in fig. 3, the screen cylinder is set to incline leftwards, and the sand, broken stone and garbage can move towards the left end cover 201 once in the process of driving the sand to shake by the rotation of the first push plate 8 and the second push plate 9; the second push plate 9 drives the sliding column 10 to move in the first sliding groove 12 in the rotating process, and the first sliding groove 12 plays a guiding role on the sliding column 10; as shown in fig. 5, the lower half section of the first chute 12 is a quarter ellipse, the upper half section is a quarter circle, and the radius of the circle of the upper half section of the first chute 12 is equal to the minor axis of the lower half ellipse; when the slide column 10 rotates anticlockwise in the first sliding groove 12 from the position shown in fig. 5, the slide column 10 moves upwards in the elliptical notch, the slide column 10 moves slowly to the side close to the central axis of the screen 202, and the slide column 10 drives the second push plate 9 to slide on the first push plate 8; it should be noted that, the first sliding groove 12 is simultaneously formed on the left end cover 201 and the right end cover 203 to make the second push plate 9 move more smoothly; when the sliding column 10 moves to the junction of the elliptical groove and the circular groove, the second push plate 9 moves to the farthest distance, and at the moment, one end of the second push plate 9, which is close to the guide cylinder 4, is attached to the guide cylinder 4; when the screen 202 continues to rotate, the slide column 10 moves in the circular groove with the first sliding groove 12, at the moment, one end of the second push plate 9, which is close to the guide cylinder 4, keeps a state of being attached to the guide cylinder 4, and after one end of the second push plate 9, which is close to the guide cylinder 4, moves to be right above the feed inlet 6, broken stone and garbage can slide into the guide cylinder 4 from the feed inlet 6 along the second push plate 9; the second push plate 9 and the first push plate 8 continue to rotate along with the screen 202; as shown in fig. 5, the top and bottom ends of the first sliding groove 12 are smoothly connected with the right inner wall of the left end cover 201 by adopting chamfers, when the sliding column 10 slides out of the circular groove from the top end of the first sliding groove 12, after the limit of the side wall of the first sliding groove 12 is lost, the second push plate 9 returns to the initial position shown in fig. 5 under the action of self gravity when continuing to rotate, and the sliding column 10 is also inserted into the first sliding groove 12 under the action of the elasticity of the first spring 11; the broken stone and the garbage in the screen drum 2 gradually slide to the left end of the screen 202, the broken stone and the garbage are slowly conveyed upwards by the first push plate 8 and the second push plate 9 in the continuous rotation process, and then the broken stone and the garbage fall into the guide drum 4 after being conveyed to the position above the feed inlet 6; it should be noted that the first push plate 8 and the second push plate 9 will certainly convey part of the qualified sand into the guide cylinder 4 together; the driving assembly drives the screen 202 to rotate and simultaneously drives the second conveying assembly to work, the second conveying assembly can convey broken stones, garbage and sand rightwards, the sand can fall into the screen cylinder 2 again from the filtering holes formed in the guide cylinder 4 in the conveying process, and as the guide cylinder 4 is obliquely arranged, the broken stones and the garbage move in a climbing manner when conveyed rightwards in the guide cylinder 4, the sand is small in size, and can fall from the filtering holes of the guide cylinder 4 more easily in the climbing rolling process, so that qualified sand can fall out of the screen 202 completely; when the second conveying component conveys the crushed stone and the garbage to the right end of the guide cylinder 4, the crushed stone and the garbage can fall out from the discharge hole 7; according to the invention, through the arrangement of the screen cylinder 2, the guide cylinder 4, the first push plate 8, the second push plate 9, the slide column 10 and the first chute 12, sand can be continuously screened by the screen cylinder 2, broken stone and garbage can be intermittently conveyed into the guide cylinder 4 by the first push plate 8 and the second push plate 9 in the screening process, the broken stone and garbage can be prevented from being accumulated in the screen cylinder 2 to block the screen cylinder, and the screen cylinder 2 can perform continuous sand screening work better; set up the filtration pore on with guide cylinder 4, can make by first push pedal 8 and the sand in the guide cylinder 4 of second push pedal 9 transport also can drop in the screen cylinder 2 from guide cylinder 4, in clearance screen cylinder 2 in rubble and rubbish, can also guarantee that qualified sand can fall out from screen cylinder 2 completely, can improve screening sand efficiency greatly.
Claims (5)
1. The utility model provides an automatic sand screening device of circulation formula building engineering, includes base (1) and screen cylinder (2), its characterized in that: the screen cylinder (2) is arranged above the base (1) in a tilting state with low left and high right; the screen cylinder (2) consists of a left end cover (201), a screen (202) and a right end cover (203); the left end cover (201) is fixedly arranged on the base (1) through the support column (5), the right end cover (203) is movably arranged with the base (1), and the screen (202) is sleeved between the left end cover (201) and the right end cover (203); the top end of the right end cover (203) is fixedly connected with a feed hopper (3); the center of the left end cover (201) is fixedly connected with a guide cylinder (4), and a filter hole is formed in the guide cylinder (4); the right end of the guide cylinder (4) passes through the right end cover (203) and extends out of the right end cover (203); a feed inlet (6) is formed in the top of one end, close to the left end cover (201), of the guide cylinder (4), and a discharge outlet (7) is formed in the bottom of one end, far away from the left end cover (201), of the guide cylinder (4); a first feeding component is arranged in the screen cylinder (2); the first feeding component is used for conveying unqualified sand in the screen cylinder (2) into the guide cylinder (4); a second feeding assembly is arranged in the guide cylinder (4) and is used for conveying unqualified sand and stones in the guide cylinder (4) to a discharge hole (7) for discharge; the base (1) is also provided with a driving assembly, and the driving assembly is used for driving the screen (202) and the second feeding assembly to work;
the first feeding assembly comprises a first push plate (8), the first push plate (8) is fixedly connected to the inner wall of the screen (202), and a second push plate (9) is connected to the first push plate (8) in a sliding manner; the left side wall and the right side wall of the second push plate (9) are both connected with a slide column (10) in a sliding manner, the slide column (10) is both fixedly connected with a first spring (11), and one end, far away from the slide column (10), of the first spring (11) is both fixedly connected with the second push plate (9); the inner walls of the left end cover (201) and the right end cover (203) are respectively provided with a first chute (12), and the sliding column (10) can move in the first chute (12); the first sliding groove (12) is used for driving the sliding column (10) to drive the second pushing plate (9) to move towards one side close to the guide cylinder (4) on the first pushing plate (8);
the second pushing plate (9) is fixedly connected with a second spring (13), and the bottom end of the second spring (13) is fixedly connected with the first pushing plate (8).
2. The automatic sand screening device for circulating building engineering according to claim 1, wherein: the second pushing plate (9) and the first pushing plate (8) are both filter plates.
3. The automatic sand screening device for circulating building engineering according to claim 1, wherein: the second feeding assembly comprises a spiral blade (14), and the spiral blade (14) is rotationally connected with the guide cylinder (4).
4. A cyclic construction automatic sand screening device according to claim 3, characterized in that: the driving assembly comprises a motor (15), and the motor (15) is fixedly arranged on the base (1) through a motor seat (16); the output shaft of the motor (15) is fixedly connected with a first belt pulley (17), and the first belt pulley (17) is in transmission connection with the screen (202) through a first transmission belt (18); the first belt pulley (17) is connected with a second belt pulley (20) through a speed reducer (19) in a transmission mode, the second belt pulley (20) is connected with a third belt pulley (22) through a second transmission belt (21) in a transmission mode, and the third belt pulley (22) is fixedly connected with a rotating shaft of the helical blade (14).
5. The automatic sand screening device for circulating building engineering according to claim 1, wherein: the right end cover (203) is fixedly connected with a material guide plate (23), and the material guide plate (23) is positioned right below the discharge hole (7).
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