CN108636784B - Sand screening device for building construction - Google Patents

Sand screening device for building construction Download PDF

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Publication number
CN108636784B
CN108636784B CN201810929535.5A CN201810929535A CN108636784B CN 108636784 B CN108636784 B CN 108636784B CN 201810929535 A CN201810929535 A CN 201810929535A CN 108636784 B CN108636784 B CN 108636784B
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China
Prior art keywords
screening
fixedly connected
bin
spiral feeding
screening bin
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CN201810929535.5A
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Chinese (zh)
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CN108636784A (en
Inventor
赵余江
张帆
孟祥武
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China Metallurgical Construction High Tech Engineering Technology Co ltd
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China Metallurgical Construction High Tech Engineering Technology Co ltd
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Publication of CN108636784A publication Critical patent/CN108636784A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/42Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46Constructional details of screens in general; Cleaning or heating of screens
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B2201/00Details applicable to machines for screening using sieves or gratings
    • B07B2201/04Multiple deck screening devices comprising one or more superimposed screens

Abstract

The invention discloses a sandy soil screening device for building construction, which comprises a spiral feeding mechanism, a feeding pipe and a screening bin, wherein in the operation process, a speed reducer and a motor on the spiral feeding mechanism are opened, the speed reducer drives a rotating shaft to rotate, a spiral feeding blade rotates, a proper amount of sandy soil is continuously poured into a material conveying cylinder through a feeding funnel, the sandy soil is conveyed to a discharging pipe to be removed through the rotating spiral feeding blade, a clamping rod and a compression spring II are extruded, two ends of the clamping rod are removed from the inside of a clamping groove, a door plate is opened, the motor is closed, the outer surface of the upper side wall of the door plate is placed on the side wall of a discharging channel, the sandy soil corresponding to the screening bin flows out from the discharging channel through the surface of the door plate, the discharging is convenient, the screening efficiency is accelerated through continuously sliding the screening bin, the screening soil is further screened through a plurality of layers of screens with different, the efficiency of work is improved, the operation is stable, makes things convenient for material loading and ejection of compact to facilitate for the operation workman.

Description

Sand screening device for building construction
Technical Field
The invention relates to a screening device, in particular to a sandy soil screening device for building construction.
Background
The construction is a production movement performed by people to construct various building products in a certain space and time according to a specific design blueprint by using various building materials and mechanical equipment. The method comprises the whole production process from construction preparation, earth breaking and engineering completion acceptance. In the process, construction preparation, construction organization design and management, earthwork engineering, blasting engineering, foundation engineering, steel bar engineering, template engineering, scaffold engineering, concrete engineering, prestressed concrete engineering, masonry engineering, steel structure engineering, wood structure engineering, structure installation engineering and the like are carried out, the building construction is a technically complex production process, building construction workers are required to exert clever and talent, theories such as materials, mechanics, structures, technique and the like are creatively applied to solve the technical problems which continuously appear in the construction, and the engineering quality and the construction safety are ensured. The construction process is carried out by multiple workers in limited time and space. The supply of hundreds of materials and the operation of various mechanical equipment, so that scientific and advanced organization and management measures and advanced construction processes are necessary to fully complete the production process, and the process is a process with higher economy. A great deal of manpower, material resources and financial resources are consumed in construction. Therefore, it is required to take measures to reduce the cost by considering the economic benefit everywhere in the construction process. The focus of attention in the construction process is always the quality of the project, the progress of safety (including environmental protection) and the cost.
The existing building construction process needs sand and soil to be respectively screened and classified, the sand and soil mainly comprises sand, soil and dust, the screening process of the existing screening device is not refined enough, and a mixing process is caused to exist at random, so that building construction is influenced, the screening efficiency of the screening device is lower, and the building efficiency is influenced.
Disclosure of Invention
The invention aims to provide a sand screening device for building construction, which solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a sandy soil screening device for building construction comprises a spiral feeding mechanism, a feeding pipe and a screening bin, wherein the spiral feeding mechanism is arranged outside one side wall of the screening bin, the feeding pipe is connected to the upper surface of the screening bin, a plurality of supporting rods are fixedly connected to the lower surfaces of the spiral feeding mechanism and the screening bin respectively, the lower end surfaces of the supporting rods are connected with a bearing plate through a damping device, three screening boxes which are parallel to each other are embedded in the screening bin, a first screen, a second screen and a third screen are respectively installed in the inner bottom surfaces of the three screening boxes, a rectangular frame is respectively arranged on the front end surface and the rear end surface of one side wall of the screening box, the outer side of one rectangular frame is fixedly connected with the inner side surface adjacent to the screening bin, sliding lugs are respectively and fixedly connected to the front end surface and the rear end surface of the screening box, the sliding lugs are placed in the rectangular frame and are in sliding connection with the rectangular frame, one side surface of the sliding, the other side of the screening box is fixedly connected with a sliding rod, the side of the screening bin close to the spiral feeding mechanism is fixedly connected with a baffle plate, the end face of the baffle plate is provided with a T-shaped rod, the other end of the sliding rod penetrates through one side of the screening bin and is fixedly connected with the side adjacent to the T-shaped rod, the other end of the T-shaped rod is fixedly connected with a U-shaped block, the inside of the U-shaped block is rotatably connected with a pulley through a shaft, the rear end face of the baffle plate is provided with a motor, the output end of the motor penetrates through the baffle plate and is connected with a cam, the outer side wall of the cam is contacted with the outer side wall of the pulley, the side wall of the screening bin close to a rectangular frame is provided with three matched discharging channels, one side of the screening box is provided with a dead slot matched with the discharging channels, the lower side wall inside the dead, the inside top surface of dead slot is equipped with and blocks the inside of pole phase-match draw-in groove, and the recess top surface is run through and extends to the draw-in groove in the card pole both ends in addition.
As a further scheme of the invention: spiral feed mechanism is by discharging pipe, pivot, spiral material loading leaf, defeated material drum, feed hopper and speed reducer are constituteed, defeated material drum is slope setting and joint support pole and obtains supporting, terminal surface installation speed reducer under the defeated material drum, the output of speed reducer runs through the bottom surface of defeated material drum and is connected with the pivot, the last fixed connection spiral material loading leaf of pivot, defeated material drum lower part fixed connection feed hopper, the discharging pipe is connected on defeated material drum top, the discharging pipe other end extends to the top of inlet pipe.
As a further scheme of the invention: the damping device is composed of a limiting block, two oscillating rods, a tension spring, a first pin shaft and a second pin shaft, the lower end of the supporting rod is fixedly connected with the two limiting blocks which are symmetrically arranged, the limiting block is connected with the bearing plate through the two oscillating rods which are symmetrically arranged, the adjacent ends of the two oscillating rods are rotatably connected through the second pin shaft, the other ends of the two oscillating rods are rotatably connected with the limiting block and the bearing plate through the first pin shaft respectively, and the adjacent sides of the two oscillating rods are fixedly connected through the tension spring.
As a further scheme of the invention: the bottom of the screening bin is provided with a discharge port, and a dustproof plug is arranged inside the discharge port.
As a further scheme of the invention: one side of the screening bin close to the baffle is provided with a through hole matched with the sliding rod, and one end of the sliding rod penetrates through the through hole and is in sliding connection with the through hole.
As a further scheme of the invention: the outer surface of the feeding funnel is covered with a cover plate.
As a further scheme of the invention: the outer surface of the door plate is fixedly connected with two symmetrically arranged U-shaped clamping rods.
As a further scheme of the invention: the aperture of the first screen is larger than that of the second screen, and the aperture of the second screen is larger than that of the third screen.
Compared with the prior art, the invention has the beneficial effects that: the operation process comprises the steps of opening a speed reducer and a motor on a spiral feeding structure, driving a rotating shaft to rotate by the speed reducer, driving a spiral feeding blade to rotate, continuously using a feeding funnel to pour a proper amount of sand into a feeding cylinder, conveying the sand to a discharging pipe by rotating the spiral feeding blade to be removed, falling into the interior of a screening box through a feeding pipe, driving a cam to rotate by the motor, continuously extruding a pulley by the cam, driving a sliding rod to extrude the screening box, extruding a first spring by a sliding lug on the screening box, moving the reduction screening box to an original position under the action of rebounding force of the first spring, driving the screening box to shake repeatedly, allowing sand and dust in a sand-soil mixture in the screening box to fall into the surface of a second screen through the first screen, allowing dust in the sand and dust to fall into the surface of a third screen through the second screen, improving screening efficiency by continuously shaking, taking out a process needing, the clamping rod is extruded, the spring II is compressed, the two ends of the clamping rod are removed from the inside of the clamping groove, the door plate is opened, the motor is closed, the outer surface of the side wall of the door plate is placed on the side wall of the discharging channel, sand and soil in the corresponding screening box flows out of the discharging channel through the surface of the door plate, and discharging is facilitated.
Drawings
Fig. 1 is a schematic structural view of a sand screening device for building construction.
Fig. 2 is a schematic view of a part a of fig. 1.
Fig. 3 is a rear view structural diagram of a baffle plate in the sand screening device for building construction.
Fig. 4 is a side view enlarged structure schematic diagram of a screening box in the sand screening device for building construction.
Fig. 5 is an enlarged structural view of a shock-absorbing device in the sand screening apparatus for construction.
In the figure: the device comprises a spiral feeding mechanism 1, a feeding pipe 2, a sieving bin 3, a bearing plate 4, a pulley 5, a baffle 6, a damping device 7, a U-shaped block 8, a sliding rod 9, a supporting rod 10, a cam 11, a sieving box 12, a sieve I13, a sieve II 14, a T-shaped rod 15, a sieve III 16, a rectangular frame 17, a spring I18, a sliding lug 19, a discharge channel 20, a motor 21, a clamping groove 22, a clamping rod 23, a hollow groove 24, a door plate 25, a door hinge 26, a spring II 27, a groove 28, a discharge pipe 101, a rotating shaft 102, a spiral feeding blade 103, a material conveying cylinder 104, a feeding hopper 105, a speed reducer 106, a limiting block 701, a swinging rod 702, a tension spring 703, a pin shaft I704 and a pin shaft.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for the convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it should be noted that the terms "mounted" and "connected" should be interpreted broadly, for example, the term "may be used in the present invention to refer to either a fixed connection, a detachable connection, a mechanical connection, an indirect connection via an intermediate medium, or an electrical connection.
Referring to fig. 1 to 5, in the embodiment of the present invention, a sandy soil screening apparatus for building construction includes a spiral feeding mechanism 1, a feeding pipe 2 and a screening bin 3, the spiral feeding mechanism 1 is disposed outside one side wall of the screening bin 3, the feeding pipe 2 is connected to an upper surface of the screening bin 3, a plurality of support rods 10 are respectively and fixedly connected to lower surfaces of the spiral feeding mechanism 1 and the screening bin 3, lower end surfaces of the support rods 10 are connected to a bearing plate 4 through a damping device 7, three screening bins 12 arranged in parallel are disposed inside the screening bin 3, a first screening mesh 13, a second screening mesh 14 and a third screening mesh 16 are respectively mounted inside inner bottom surfaces of the three screening bins 12, a rectangular frame 17 is respectively disposed on a front end surface and a rear end surface of one side wall of the screening bin 12, an adjacent inner side surface of the rectangular frame 17 is fixedly connected to an outer side wall of the screening bin 3, a sliding protrusion 19 is respectively and fixedly connected to a front end surface and a, the sliding lug 19 is placed inside the rectangular frame 17 and is in sliding connection with the rectangular frame 17, one side face of the sliding lug 19 is fixedly connected with one side wall inside the rectangular frame 17 through a first spring 18, the other side face of the screening material box 12 is fixedly connected with a sliding rod 9, the side face, close to the spiral feeding mechanism 1, of the screening material bin 3 is fixedly connected with a baffle 6, the end face of the baffle 6 is provided with a T-shaped rod 15, the other end of the sliding rod 9 penetrates through one side face of the screening material bin 3 and is fixedly connected with the adjacent side face of the T-shaped rod 15, the other end of the T-shaped rod 15 is fixedly connected with a U-shaped block 8, the inside of the U-shaped block 8 is rotatably connected with the pulley 5 through a shaft, the rear end face of the baffle 6 is provided with a motor 21, the output end of the motor 21 penetrates through the baffle 6 and is connected with a cam 11, the, a side face of the material sieving box 12 is provided with an empty groove 24 matched with the material discharging channel 20, the lower side wall inside the empty groove 24 is rotatably connected with a door plate 25 through a plurality of door hinges 26, the outer side face of the door plate 25 is internally provided with a groove 28 near the central position, the bottom surface inside the groove 28 is fixedly connected with a clamping rod 23 through a plurality of second springs 27, the top surface inside the empty groove 24 is provided with a clamping groove 22 matched with the clamping rod 23, and the other two ends of the clamping rod 23 penetrate through the top surface of the groove 28 and extend into the clamping groove 22;
the spiral feeding mechanism 1 is composed of a discharging pipe 101, a rotating shaft 102, spiral feeding blades 103, a material conveying cylinder 104, a feeding funnel 105 and a speed reducer 106, the material conveying cylinder 104 is obliquely arranged, the outer side wall of the material conveying cylinder 104 is connected with one end of a supporting rod 10, the speed reducer 106 is installed on the lower side face of the material conveying cylinder 104, the output end of the speed reducer 106 penetrates through the side face of the material conveying cylinder 104 and is connected with the rotating shaft 102, the spiral feeding blades 103 are fixedly connected with the outer side wall of the other end of the rotating shaft 102, the feeding funnel 105 is fixedly connected with the outer side face of the bottom of the material conveying cylinder 104, the discharging pipe 101 is fixedly connected with the outer side wall of the top of the material conveying cylinder 104, the other end of the discharging pipe 101 extends to the upper side of the feeding pipe 2, the raw;
in this embodiment, a spiral feeding mechanism is arranged outside one side wall of the screening bin, and the screening bin and the spiral feeding mechanism can be mutually independent, or can be connected into a whole through a feeding pipe of the screening bin and a discharging pipe of the spiral feeding mechanism.
The damping device 7 is composed of a limiting block 701, swinging rods 702, tension springs 703, a first pin shaft 704 and a second pin shaft 705, the outer side wall of the lower end of the supporting rod 10 is fixedly connected with two symmetrically arranged limiting blocks 701, the limiting block 701 is connected with the side wall of the pressure bearing plate 4 through the two symmetrically arranged swinging rods 702, two adjacent ends of the two swinging rods 702 are rotatably connected through the second pin shaft 705, the other ends of the two swinging rods 702 are respectively rotatably connected with the limiting block 701 and the pressure bearing plate 4 through the first pin shaft 704, the adjacent side edges of the two swinging rods 702 are fixedly connected through the tension springs 703, the damping device 7 acts, the distance between the two nonadjacent ends of the two swinging rods 702 is increased through the stretching action of the tension springs 703, and the damping device is subjected to the effect of the rebound force of the tension springs 703, so that the two swinging rods;
a discharge port is formed in the bottom of the screening bin 3, and a dustproof plug is arranged in the discharge port;
a through hole matched with the sliding rod 9 is formed in one side face, close to the baffle 6, of the screening bin 3, and the other end of the sliding rod 9 penetrates through the through hole and is in sliding connection with the through hole;
the outer surface of the feeding hopper 105 is provided with a cover plate;
the outer surface of the door plate 25 is fixedly connected with two symmetrically arranged U-shaped clamping rods;
the aperture of the first screen 13 is larger than that of the second screen 14, the aperture of the second screen 14 is larger than that of the third screen 16, and fine sand and coarse sand can be further separated through screens with different aperture sizes, so that suitable materials are provided for materials required by different buildings.
The working principle of the invention is as follows: during the operation process, the speed reducer 106 and the motor 21 on the spiral feeding structure 1 are opened, the speed reducer 106 drives the rotating shaft 102 to rotate, the spiral feeding blade 103 rotates, a proper amount of sand is poured into the conveying cylinder 104 through the feeding funnel 105, the sand is conveyed to the discharging pipe 101 to be removed through rotating the spiral feeding blade 103, the sand falls into the sieve material box 12 through the feeding pipe 2, the motor 21 drives the cam 11 to rotate, the cam 11 continuously extrudes the pulley 5, the sliding rod 9 is driven to extrude the sieve material box 12, the sliding lug 19 on the sieve material box 12 extrudes the first spring 18, the first spring 18 rebounds to move the reduction sieve material box 12 to the original position, the sieve material box 12 is driven to shake repeatedly, sand and dust in the sand-soil mixture in the sieve material box 12 fall onto the surface of the second screen 14 through the first screen 13, the sand and dust in the sand and dust fall onto the surface of the third screen 16 through the second screen 14, and, the screening efficiency is improved, the process of taking out needed sand or soil is performed, the clamping rod 23 is extruded through the discharging channel 20, the second compression spring 27 is compressed, the two ends of the clamping rod 23 are removed from the inside of the clamping groove 22, the door plate 25 is opened, the motor 21 is closed, the outer surface of the side wall of the door plate 25 is placed on the side wall of the discharging channel 20, sand and soil in the corresponding screening box 12 flow out of the discharging channel 20 through the surface of the door plate 25, and discharging is facilitated.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (8)

1. A sandy soil screening device for building construction comprises a spiral feeding mechanism (1), a feeding pipe (2) and a screening bin (3), and is characterized in that the spiral feeding mechanism (1) is arranged outside one side wall of the screening bin (3), the feeding pipe (2) is connected to the upper surface of the screening bin (3), a plurality of support rods (10) are fixedly connected to the lower surfaces of the spiral feeding mechanism (1) and the screening bin (3) respectively, the lower end surfaces of the support rods (10) are connected with a bearing plate (4) through a damping device (7), three screening bins (12) which are parallel to each other are embedded in the screening bin (3), a first screen mesh (13), a second screen mesh (14) and a third screen mesh (16) are arranged in the inner bottom surfaces of the three screening bins (12) respectively, a rectangular frame (17) is arranged on the front end surface and the rear end surface of one side wall of the screening bin (12) respectively, the outer side of the rectangular frame (17) is fixedly connected with the adjacent screening bin (, the front end face and the rear end face of the screening box (12) are respectively fixedly connected with a sliding lug (19), the sliding lug (19) is placed inside the rectangular frame (17) and is in sliding connection with the rectangular frame (17), one side face of the sliding lug (19) is fixedly connected with one side wall inside the rectangular frame (17) through a first spring (18), the other side face of the screening box (12) is fixedly connected with a sliding rod (9), the side face, close to the spiral feeding mechanism (1), of the screening bin (3) is fixedly connected with a baffle (6), the end face of the baffle (6) is provided with a T-shaped rod (15), the other end of the sliding rod (9) penetrates through one side face of the screening bin (3) and is fixedly connected with the side face adjacent to the T-shaped rod (15), the other end of the T-shaped rod (15) is fixedly connected with a U-shaped block (8), the inside of the U (8) is rotatably connected with a pulley (5) through a shaft, the output of motor (21) runs through baffle (6) and connect cam (11), the lateral wall and the contact of pulley (5) lateral wall of cam (11), sieve feed bin (3) are close to the lateral wall of rectangle frame (17) and are equipped with three assorted discharging channel (20), sieve feed box (12) one side is equipped with and discharging channel (20) assorted dead slot (24), the inside lower lateral wall of dead slot (24) rotates through a plurality of hinge (26) and connects door plant (25), door plant (25) lateral surface is close to central point and puts inside recess (28) that is equipped with, recess (28) inside bottom surface is through two (27) fixed connection kelly (23) of a plurality of spring, the inside top surface of dead slot (24) is equipped with and kelly (23) phase-match draw-in groove (22), kelly (23) other both ends run through recess (28) top surface and extend to the inside of draw-in groove (22).
2. The sand screening device for building construction according to claim 1, wherein the spiral feeding mechanism (1) is composed of a discharging pipe (101), a rotating shaft (102), a spiral feeding blade (103), a feeding cylinder (104), a feeding funnel (105) and a speed reducer (106), the feeding cylinder (104) is arranged obliquely, a connecting support rod (10) is supported, the speed reducer (106) is installed on the lower end face of the feeding cylinder (104), the output end of the speed reducer (106) penetrates through the bottom face of the feeding cylinder (104) and is connected with the rotating shaft (102), the spiral feeding blade (103) is fixedly connected to the upper portion of the rotating shaft (102), the feeding funnel (105) is fixedly connected to the lower portion of the feeding cylinder (104), the discharging pipe (101) is connected to the top end of the feeding cylinder (104), and the other end of the discharging pipe (101) extends to the upper portion of the feeding pipe (2).
3. The sand screening device for building construction according to claim 1, wherein the damping device (7) is composed of a limiting block (701), a swinging rod (702), a tension spring (703), a first pin shaft (704) and a second pin shaft (705), the lower end of the support rod (10) is fixedly connected with the two symmetrically arranged limiting blocks (701), the limiting blocks (701) are connected with the bearing plate (4) through the two symmetrical swinging rods (702), the adjacent ends of the two swinging rods (702) are rotatably connected with the second pin shaft (705), the other ends of the two swinging rods (702) are rotatably connected with the limiting blocks (701) and the bearing plate (4) through the first pin shaft (704), and the adjacent sides of the two swinging rods (702) are fixedly connected through the tension spring (703).
4. The sandy soil screening device for building construction according to claim 1, wherein a discharge port is formed at the bottom of the screening bin (3), and a dustproof plug is mounted inside the discharge port.
5. The sand screening device for building construction according to claim 1 or 4, wherein one side of the screening bin (3) close to the baffle (6) is provided with a through hole matched with the sliding rod (9), and one end of the sliding rod (9) penetrates through the through hole and is in sliding connection with the through hole.
6. The sand screening apparatus for construction work as claimed in claim 1, wherein the outer surface of the feed hopper (105) is covered with a cover plate.
7. The sand screening device for building construction according to claim 1, wherein the outer surface of the door panel (25) is fixedly connected with two symmetrically arranged U-shaped clamping rods.
8. The sand screening apparatus for construction work as claimed in claim 1, wherein the aperture of the first screen (13) is larger than that of the second screen (14), and the aperture of the second screen (14) is larger than that of the third screen (16).
CN201810929535.5A 2018-08-15 2018-08-15 Sand screening device for building construction Active CN108636784B (en)

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CN110947607A (en) * 2019-12-11 2020-04-03 安徽盛世开元装备科技有限公司 High-efficient coal picker
CN112495792A (en) * 2020-12-22 2021-03-16 阜宁金一新能源科技有限公司 Biochar carbonization production equipment based on spiral output technology

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