CN118357144A - Sand and stone anti-blocking screening device - Google Patents

Sand and stone anti-blocking screening device Download PDF

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Publication number
CN118357144A
CN118357144A CN202410797289.8A CN202410797289A CN118357144A CN 118357144 A CN118357144 A CN 118357144A CN 202410797289 A CN202410797289 A CN 202410797289A CN 118357144 A CN118357144 A CN 118357144A
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CN
China
Prior art keywords
sand
shell
screening device
mounting
filter plate
Prior art date
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Granted
Application number
CN202410797289.8A
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Chinese (zh)
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CN118357144B (en
Inventor
马红彬
刘满
郭建涛
张强
温亚娟
李千千
叶丽娟
于文琰
韩敬真
刘冬辉
朱威
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Henan Pengfei Construction Engineering Co ltd
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Henan Pengfei Construction Engineering Co ltd
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Priority to CN202410797289.8A priority Critical patent/CN118357144B/en
Publication of CN118357144A publication Critical patent/CN118357144A/en
Application granted granted Critical
Publication of CN118357144B publication Critical patent/CN118357144B/en
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Classifications

    • 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
    • B07B1/18Drum screens
    • B07B1/22Revolving drums
    • B07B1/26Revolving drums with additional axial or radial movement of the drum
    • 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

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  • Combined Means For Separation Of Solids (AREA)

Abstract

The invention relates to the technical field of sand and stone anti-blocking screening, in particular to a sand and stone anti-blocking screening device, which comprises a shell, wherein the outer surfaces of two sides of the shell are respectively fixedly connected with a first counterweight seat and a second counterweight seat, and the sand and stone anti-blocking screening device further comprises: the adjusting mechanism comprises a mounting block which is arranged in the first counterweight seat in a sliding way, and first sliding grooves are formed in two sides of the inner wall of the first counterweight seat; and a feeding mechanism. The advantages are that: according to the invention, through adjusting the angle of the filter plate, one end of the filter plate which is more worn is rotated downwards, and the other end of the filter plate which is less worn is rotated upwards, so that the two ends of the filter plate are highly exchanged, the wear of the filter plate is balanced, the service life of the filter plate is prolonged, the filter plate is driven to rotate by utilizing the rotating motor, the induction joint in the limiting ring and the electromagnet are continuously staggered during rotation, the electromagnet generates electromagnetic attraction force which is mutually attracted with the permanent magnet, and the ejector block pushes a plurality of filter plates to perform rapid reciprocating motion, so that the vibrating effect is achieved, and the screening effect is further enhanced.

Description

Sand and stone anti-blocking screening device
Technical Field
The invention relates to the technical field of sand and stone anti-blocking screening, in particular to a sand and stone anti-blocking screening device.
Background
The sand and gravel anti-blocking screening refers to screening sand and gravel by screening equipment to prevent pipeline blockage or prevent oversized particles from affecting use, and in engineering construction or hydraulic engineering, sand and gravel are often required to be screened to ensure that the used sand and gravel meet the specified particle size requirement, and prevent the equipment or pipeline from being blocked, when sand and gravel anti-blocking screening is carried out, proper screening equipment and screen mesh size are required to be selected according to specific engineering requirements, and the sand and gravel are ensured to meet the use requirement, so that the efficiency and quality of engineering construction are improved.
Through retrieval, a fine sand roller screening machine and a control system thereof disclosed in patent publication No. CN114011697A comprise a screening mechanism, a drying mechanism and an anti-blocking mechanism which are arranged in a machine shell, wherein the drying mechanism is used for heating sand and stone screened in the drying and screening mechanism, and the anti-blocking mechanism is used for preventing the sand and stone from being stuck on the screening mechanism; the screening mechanism comprises a polygonal rotary screen and a first driving device for driving the polygonal rotary screen to rotate in the shell, and the polygonal rotary screen comprises a multi-angle support frame and a plurality of window type meshes which are detachably connected with the multi-angle support frame; this meticulous sand drum screening machine and control system thereof changes traditional circular drum sieve into 8 angles or 12 angles drum sieve, solves the stifled net problem of sand, and whole screen cloth is made into slice window formula structural style, is convenient for change and maintenance, and control system control device operation to thereby monitor the humiture condition of the sand of screening in the drum sieve and dry it that adjusts temperature, cooperate anti-blocking mechanism further to avoid the screen cloth to block up, the effectual screening quality of guaranteeing sand.
The above-mentioned patent is nevertheless had certain beneficial effect, when carrying out the screening to the grit, because the screen cloth sets up for the slope, the screen cloth of higher part carries out most screening work, the grit material transmissivity is more, wearing and tearing are comparatively serious, surface roughness variation, solid particle is difficult to roll off and is more easy to damage, consequently also can be bigger along with the possibility that the increase of live time takes place to block up, and the lower partial solid particle transmissivity of screen cloth is less, wearing and tearing are also less, the upper and lower two parts of screen cloth part wear unbalance, the higher partial damage of screen cloth just needs to be changed for the screen cloth is utilized inadequately, the waste resource and increased maintenance cost.
Disclosure of Invention
The invention aims to solve the problem that the screen mesh of a sand anti-blocking screening device is not fully utilized in the prior art, and provides the sand anti-blocking screening device.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the utility model provides a gravel prevents stifled screening plant, includes the shell, the both sides surface of shell is first counter weight seat and second counter weight seat of fixedly connected with respectively, still includes:
The adjusting mechanism comprises a mounting block which is slidably arranged in the first counterweight seat, first sliding grooves are formed in two sides of the inner wall of the first counterweight seat, racks are fixedly arranged in the first sliding grooves, a compressing and fixing assembly is fixedly arranged in the mounting block, a rotating motor is arranged in one side, close to the inside of the shell, of the mounting block, the output end of the rotating motor is fixedly connected with the screen part, and the screen part comprises a mounting frame;
the feeding mechanism is fixedly arranged on one side of the shell and used for feeding sand materials into the shell;
And the vibration mechanism is arranged inside the outer side of the mounting frame and is used for driving the sand and stone materials to vibrate when the sand and stone materials are sieved.
In the anti-blocking sand screening device, the screen part comprises a fixing frame fixedly connected with the output end of the rotating motor, the outer side of the fixing frame is fixedly provided with a mounting frame, the mounting frame is arranged to be a plurality of outer surfaces which are uniformly distributed on the fixing frame in circumference, the adjacent mounting frames are all connected with filter plates for filtering and screening sand in a sliding manner, sealing rings are respectively fixed at the two ends of the mounting frames, and a limiting assembly is arranged outside the middle of the mounting frame.
In the anti-blocking sand screening device, the limiting assembly comprises a limiting ring, the limiting ring is rotationally connected inside the shell, and the limiting ring is rotationally connected with the screen mesh part.
In the anti-blocking sand screening device, every two adjacent installation frames are provided with connecting plates at positions corresponding to the limiting rings, and the connecting plates are used for guaranteeing that the limiting rings are sealed with the connection parts of the installation frames.
In the anti-blocking sand screening device, the feeding mechanism comprises a distributing hopper fixedly arranged on one side of the shell, a rotating plate is arranged inside the distributing hopper, one side of the rotating plate is fixedly connected with the output end of a control motor which is arranged inside the distributing hopper, one side, close to the shell, of each of two ends of the rotating plate is fixedly provided with a conveying shell, and one lower end of the conveying shell corresponds to the position of the higher end of the inclined screen part through rotation.
In the anti-blocking sand screening device, the vibration mechanism comprises a second sliding groove formed in the outer side of the mounting frame, the inner side of the limiting ring is provided with an induction joint, the inner side of the second sliding groove is provided with an electromagnet, the electromagnet is matched with the induction joint and corresponds to the induction joint in position, the electromagnet is fixedly connected with a special-shaped sliding frame through a first spring, the side wall of the second sliding groove is symmetrically provided with two third sliding grooves, and the inner side of each third sliding groove is fixedly provided with an ejection assembly.
In the anti-blocking sand screening device, the ejection assembly comprises an ejector block, and the outer surface of the ejector block is fixedly connected with the inner wall of the third chute through a second spring.
In the gravel anti-blocking screening device, the contact part of the special-shaped sliding frame and the top block is arc-shaped.
In the anti-blocking sand screening device, the pressing and fixing assembly comprises an electric push rod, and the electric push rod presses and fixes the mounting block and the inner wall of the first counterweight seat through the output end of the electric push rod.
In the anti-blocking sand screening device, the outer surfaces of the first spring and the second spring are respectively sleeved with a sealing elastic sleeve for preventing sand from entering and affecting the elasticity of the sand.
Compared with the prior art, the invention has the advantages that:
1. According to the invention, through the devices such as the rotating plate, the conveying shell, the mounting block and the like, the motor in the mounting block is utilized to drive the adjusting gear to be meshed with the rack, so that the mounting block is driven to slide along the first sliding groove, and the motor arranged on one side of the mounting block close to the shell is used to drive the screen part to rotate around the limiting ring during sliding, so that the angle of the filter plate is adjusted, one end of the filter plate which is more worn is downwards rotated, one end of the filter plate which is less worn is upwards rotated, and the two ends of the filter plate are highly exchanged, so that the filter plate is balanced in wear, the service life of the filter plate is prolonged, and the utilization rate of the filter plate is improved.
2. According to the invention, the filter plate is driven to rotate by the rotating motor, the mounting frame and the filter plate, so that sand materials in the device are screened, the induction joint in the limiting ring is continuously staggered with the electromagnet during rotation, and when the induction joint corresponds to the electromagnet, the electromagnet generates electromagnetic attraction force which is mutually attracted with the permanent magnet, so that the jacking block pushes the filter plates to perform rapid reciprocating motion, the vibration effect is achieved, and the screening effect is further enhanced.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a sand anti-blocking screening device according to the present invention;
FIG. 2 is a schematic view of an overall structure of another view angle of a sand anti-blocking screening device according to the present invention;
FIG. 3 is a schematic diagram of the internal structure of a sand anti-blocking screening device according to the present invention;
FIG. 4 is a schematic diagram of the internal structure of a first counterweight base of a sand anti-blocking screening device according to the present invention;
FIG. 5 is a schematic view of a partial sectional axial measurement of a mounting block of a sand anti-blocking screening device according to the present invention;
FIG. 6 is a schematic view of a distributing hopper, rotating plate and transport housing portion of a sand anti-blocking screening device according to the present invention;
FIG. 7 is a schematic view of a mounting frame and screen portion of a sand anti-blocking screening device according to the present invention;
FIG. 8 is a schematic view of a mounting frame of a sand anti-blocking screening device according to the present invention;
FIG. 9 is a schematic view of the internal structure of a mounting frame for a sand anti-blocking screening device according to the present invention;
FIG. 10 is an enlarged schematic view of the portion A of FIG. 9;
FIG. 11 is a schematic diagram of a spacing ring portion of a sand anti-blocking screening device according to the present invention.
In the figure: 1. a first weight mount; 101. a first chute; 102. a rack; 103. a relief groove; 2. a second weight mount; 3. a housing; 4. a dispensing funnel; 401. a rotating plate; 5. a transport shell; 6. a mounting block; 601. an adjusting gear; 602. an electric push rod; 7. a rotating motor; 8. a fixing frame; 9. a mounting frame; 901. a sealing ring; 902. a connecting plate; 10. a filter plate; 11. a limiting ring; 12. a second chute; 121. a first spring; 13. a special-shaped sliding frame; 131. a permanent magnet; 14. a third chute; 141. a second spring; 15. a top block; 16. an electromagnet; 17. and (5) an induction joint.
Detailed Description
The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.
Examples
Referring to figures 1-11, a sand anti-blocking screening device comprises a shell 3, wherein the outer surfaces of two sides of the shell 3 are respectively and fixedly connected with a first counterweight seat 1 and a second counterweight seat 2, an installation block 6 is arranged in the first counterweight seat 1 in a sliding manner, a first sliding groove 101 is formed in two sides of the inner wall of the first counterweight seat 1, a rack 102 is fixedly arranged in the first sliding groove 101, an electric push rod 602 is fixedly arranged in the installation block 6, the electric push rod 602 can tightly press and fix the installation block 6 and the inner wall of the first counterweight seat 1 through the output end of the electric push rod 602, the installation block 6 and the first counterweight seat 1 are more firmly fixed, the loads of an adjusting gear 601 and a rack 102 are shared, an adjusting gear 601 is arranged on one side of the first counterweight seat 1 close to the rack 102, a gear motor is fixedly arranged in the first counterweight seat 1, the adjusting gear 601 is fixedly connected with the output shaft of the gear motor, the gear motor is used for driving the adjusting gear 601 to rotate, the adjusting gear 601 is matched with and meshed with the rack 102, when the adjusting gear 601 rotates, the adjusting gear 601 can be meshed with the rack 102 to drive the installation block 6 to move, thereby adjusting the position of the installation block 6, one side of the installation block 6, which is close to the inside of the shell 3, is internally provided with the rotating motor 7, the output end of the rotating motor 7 is fixedly connected with the screen mesh part, the yielding groove 103 is formed in one side of the first counterweight base 1, which is close to the shell 3, the rotating motor 7 can drive the screen mesh part to rotate, the adjusting gear 601 is driven by the gear motor inside to be meshed with the rack 102, and accordingly the installation block 6 can be driven to adjust the angle of the screen mesh part, so that the screening requirements of different granular materials can be better adapted, and the screening efficiency is improved.
The screen cloth part includes the mount 8 with the output fixed connection of rotating motor 7, the outside fixed mounting of mount 8 has mounting bracket 9, mounting bracket 9 sets up to a plurality of and be circumference evenly distributed at the surface of mount 8, equal sliding connection has the filter plate 10 that is used for filtering screening sand and stone between the adjacent mounting bracket 9, and the both ends of mounting bracket 9 all are fixed with seal ring 901, spacing ring 11 is installed in the middle of the mounting bracket 9 outside, spacing ring 11 rotates to be connected inside shell 3, spacing ring 11 rotates with the screen cloth part to be connected, every two adjacent mounting brackets 9 all install connecting plate 902 in the position that corresponds with spacing ring 11, connecting plate 902 can guarantee spacing ring 11 and mounting bracket 9 connecting portion to seal, avoid solid particle to cause the jam to influence and rotate, it can make its separation to screen cloth material macroparticle and macroparticle that the inside shell 3 sieve through rotating motor 7 drive the screen cloth part.
A distributing hopper 4 is fixedly arranged on one side of the shell 3, a rotating plate 401 is arranged in the distributing hopper 4, one side of the rotating plate 401 is fixedly connected with the output end of a control motor arranged in the distributing hopper 4, so that the control motor can drive the rotating plate 401 to perform angle adjustment, the speed of sand and stone materials sliding down through gravity is controlled, the adaptability of the device is higher, a conveying shell 5 is fixedly arranged on one side of the two ends of the rotating plate 401, which is close to the shell 3, the control motor can drive the conveying shell 5, which is close to the rotating plate 401, to rotate through the rotating plate 401, so that the lower end of the sand and stone materials fall into the screen part through the conveying shell 5, a vibrating mechanism is arranged in the limiting ring 11 and comprises an induction joint 17 arranged on the inner wall of the limiting ring 11, the second sliding groove 12 is arranged in the outer side of the mounting frame 9, the electromagnet 16 is arranged in the second sliding groove 12, the electromagnet 16 is matched with the induction joint 17 and corresponds to the induction joint 17 in position, the electromagnet 16 is fixedly connected with the special-shaped sliding frame 13 through the first spring 121, the outer surface of the first spring 121 is sleeved with a sealing elastic sleeve, when the screen mesh part rotates, the induction joint 17 can be continuously staggered with the electromagnet 16, when the induction joint 17 corresponds to the position of the electromagnet 16, the electromagnet 16 generates electromagnetic attraction force which is mutually attracted with the permanent magnet 131, the special-shaped sliding frame 13 overcomes the elasticity of the first spring 121 to slide in the second sliding groove 12, two third sliding grooves 14 are symmetrically arranged on the side wall of the second sliding groove 12, the top blocks 15 are respectively and slidably arranged in the third sliding grooves 14, the outer surface of the top blocks 15 is fixedly connected with the inner wall of the third sliding grooves 14 through the second springs 141, the second spring 141 surface cover is equipped with sealed elastic sleeve, when special-shaped carriage 13 slides, its arc portion is closely with kicking block 15, the inside kicking block 15 of third spout 14 can push up special-shaped carriage 13 all the time owing to the elasticity effect of second spring 141, special-shaped carriage 13 arc portion's design makes the ejecting degree of kicking block 15 change, kicking block 15 is promoting the quick reciprocating motion of several filter plate 10 for the short distance, the grit material that falls to the screen cloth part takes place the vibration of high frequency, also can make the grit material of card inside filter plate 10 drop, greatly improved the screening effect.
According to the invention, before the device works, the screen part is firstly adjusted to a proper angle according to the requirement, the two adjusting gears 601 are driven to rotate by the control gear motor, the adjusting gears 601 are meshed with the racks 102, the limiting ring 11 is rotationally connected inside the shell 3, the limiting ring 11 is rotationally connected with the screen part, the screen part can only rotate in the limiting ring 11 and cannot slide, the rotation of the adjusting gears 601 can simply control the screen part to achieve a proper inclination angle, the inclination angle range of the conventional small-sized rotary screen is 5-15 degrees when the rotary screen works, the invention can realize the angle adjustment of the screen part within a range of 40 degrees by controlling the adjusting gears 601, the inclination of 20 degrees at the maximum is carried out on one side, and the high and low positions of the two ends of the screen part can be freely exchanged.
After the angle of the screen part is adjusted, an electric push rod 602 in the installation block 6 is started, the electric push rod 602 stretches out to press the first counterweight seat 1, so that the installation block 6 is more firmly fixed in the first counterweight seat 1, the load of the adjusting gear 601 and the rack 102 is shared, the rotating motor 7 works and controls the fixing frame 8 to rotate, the outer side of the fixing frame 8 is fixedly connected with a plurality of mounting frames 9, a filter plate 10 is slidably connected between every two adjacent mounting frames 9, sealing rings 901 are fixed at two ends of all the mounting frames 9, connecting plates 902 are arranged at positions corresponding to the limiting rings 11 of every two adjacent mounting frames 9, the connecting parts of the limiting rings 11 and the mounting frames 9 are guaranteed to be closed, the solid particles are prevented from blocking and affecting rotation, the mounting frames 9, the sealing rings 901, the connecting plates 902 and the filter plate 10 jointly form a screen part to drive the rotation of the screen part, a control motor adjusting rotating plate 401 is arranged in the distribution funnel 4 to rotate for angle adjustment, the sand and stone materials are added into the distribution hopper 4, the sand and stone materials falling into the distribution hopper 4 move from high to low along the inclined rotating plate 401 and fall into the outer shell 3 from the inner part of the conveying shell 5 near the lower end of the rotating plate 401, the sand and stone materials conveyed into the outer shell 3 from the conveying shell 5 just correspond to the position of the upper end of the inclined screen part, the sand and stone materials falling into the inclined and rotating screen part can smoothly fall into the upper end of the screen part, the sand and stone materials falling into the inclined and rotating screen part are dispersed and fall upwards along the inner side wall of the screen part along with the rotation of the screen part, large particles and small particles in the sand and stone materials are dispersed, the sand and stone materials can be better screened, when the screen part rotates, the induction joints 17 at the inner side of the limiting ring 11 are continuously staggered with the joints of the electromagnet 16, when the induction joint 17 is continuously electrified, when the induction joint 17 corresponds to the position of the electromagnet 16, the electromagnet 16 generates electromagnetic attraction force which is mutually attracted with the permanent magnet 131, the special-shaped sliding frame 13 overcomes the elasticity of the first spring 121 and slides in the second sliding groove 12, the ejector block 15 in the third sliding groove 14 always abuts against the special-shaped sliding frame 13 under the action of the elasticity of the second spring 141, the ejection degree of the ejector block 15 can be changed due to the arc-shaped part of the special-shaped sliding frame 13, the screen mesh part rotates, the electromagnet 16 is continuously electrified and powered off, the special-shaped sliding frame 13 slides, the ejector block 15 pushes the plurality of filter plates 10 to perform short-distance quick reciprocating motion, although the filter plates 10 are arc-shaped, the deflection angle is smaller, the movable space in the mounting frame 9 is sufficient, the reciprocating motion of the filter plates 10 can be realized, the vibration effect is achieved, the sand materials falling onto the screen mesh part can be well vibrated, the sand materials clamped inside the filter plates 10 can also fall, and the screening effect is further improved.
The conventional drum screen is usually positioned at the upper half part with higher position, the upper half part is used for most screening work, the permeability of sand and stone materials is more, abrasion is more serious, surface roughness is poor, solid particles are less prone to rolling down and are more prone to damage, therefore, the possibility of blocking is also higher along with the increase of service time, the permeability of solid particles at the lower half part is smaller, abrasion is also smaller, the upper and lower parts of the screen are unbalanced, but the upper part is damaged, the screen is not fully used, the angle of the screen can be directly adjusted in the screening process, the rotating plate 401 is correspondingly adjusted during the adjustment to ensure that sand and stone are accurately input, the high and low positions of the screen can be freely exchanged and adjusted according to the requirement, the two ends of the filter plate 10 can be uniformly used, the abrasion at one end is reduced, the whole service life is prolonged, the damage caused by the overhigh utilization rate of a certain part, the working efficiency is influenced, and when the replacement is required, only a single filter plate 10 is required, and the operation is simple and convenient.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims (7)

1. The utility model provides a gravel prevents stifled screening plant, includes shell (3), the both sides surface of shell (3) is first counter weight seat (1) and second counter weight seat (2) of fixedly connected with respectively, its characterized in that still includes:
The adjusting mechanism comprises a mounting block (6) which is slidably arranged in a first counterweight seat (1), first sliding grooves (101) are formed in two sides of the inner wall of the first counterweight seat (1), racks (102) are fixedly arranged in the first sliding grooves (101), a pressing and fixing assembly is fixedly arranged in the mounting block (6), a rotating motor (7) is arranged in one side, close to the inside of the shell (3), of the mounting block (6), the output end of the rotating motor (7) is fixedly connected with a screen part, and the screen part comprises a mounting rack (9);
The feeding mechanism is fixedly arranged on one side of the shell (3) and used for feeding sand and stone materials into the shell (3);
The vibration mechanism is arranged inside the outer side of the mounting frame (9) and is used for driving the sand and stone materials to vibrate when the sand and stone materials are screened;
The screen part comprises a fixing frame (8) fixedly connected with the output end of a rotating motor (7), a plurality of mounting frames (9) are fixedly arranged on the outer sides of the fixing frame (8), the mounting frames (9) are uniformly distributed on the outer surfaces of the fixing frame (8) in circumference, filter plates (10) for filtering and screening sand stones are slidably connected between every two adjacent mounting frames (9), sealing rings (901) are fixedly arranged at the two ends of each mounting frame (9), and limiting assemblies are arranged on the outer sides of the middle of each mounting frame (9);
The limiting assembly comprises a limiting ring (11), the limiting ring (11) is rotationally connected inside the shell (3), and the limiting ring (11) is rotationally connected with the screen mesh part;
The vibration mechanism comprises a second sliding groove (12) formed in the outer side of a mounting frame (9), an induction joint (17) is mounted on the inner side of a limiting ring (11), an electromagnet (16) is mounted in the second sliding groove (12), the electromagnet (16) is matched with the induction joint (17) and corresponds in position, the electromagnet (16) is fixedly connected with a special-shaped sliding frame (13) through a first spring (121), two third sliding grooves (14) are symmetrically formed in the side wall of the second sliding groove (12), and ejection assemblies are fixedly mounted in the third sliding grooves (14).
2. A sand anti-blocking screening device according to claim 1, characterized in that each two adjacent mounting frames (9) are provided with a connecting plate (902) at positions corresponding to the limiting rings (11), and the connecting plates (902) are used for ensuring that the connecting parts of the limiting rings (11) and the mounting frames (9) are closed.
3. The sand anti-blocking screening device according to claim 1, wherein the feeding mechanism comprises a distribution funnel (4) fixedly mounted on one side of the casing (3), a rotating plate (401) is arranged inside the distribution funnel (4), one side of the rotating plate (401) is fixedly connected with the output end of a control motor which is internally mounted on the distribution funnel (4), a conveying shell (5) is fixedly mounted on one side, close to the casing (3), of the two ends of the rotating plate (401), and one lower end of the conveying shell (5) rotates to correspond to the position of the upper end of the inclined screen part.
4. The sand anti-blocking screening device according to claim 1, wherein the ejection assembly comprises an ejector block (15), and the outer surface of the ejector block (15) is fixedly connected with the inner wall of the third chute (14) through a second spring (141).
5. A sand anti-blocking screening device according to claim 4, characterized in that the contact part of the profiled sliding frame (13) and the top block (15) is of arc-shaped design.
6. The sand anti-blocking screening device according to claim 1, wherein the pressing and fixing assembly comprises an electric push rod (602), and the electric push rod (602) is used for pressing and fixing the mounting block (6) and the inner wall of the first counterweight seat (1) through the output end of the electric push rod (602).
7. A sand anti-blocking screening device according to claim 4, characterized in that the outer surfaces of the first spring (121) and the second spring (141) are provided with sealing elastic sleeves for preventing sand from entering and affecting the elasticity thereof.
CN202410797289.8A 2024-06-20 2024-06-20 Sand and stone anti-blocking screening device Active CN118357144B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202410797289.8A CN118357144B (en) 2024-06-20 2024-06-20 Sand and stone anti-blocking screening device

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Application Number Priority Date Filing Date Title
CN202410797289.8A CN118357144B (en) 2024-06-20 2024-06-20 Sand and stone anti-blocking screening device

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CN118357144B CN118357144B (en) 2024-08-13

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Publication number Priority date Publication date Assignee Title
US5921400A (en) * 1994-11-25 1999-07-13 Judd; Melvyn John Apparatus for sieving a particulate material
CN111659604A (en) * 2020-06-08 2020-09-15 河南省农业科学院长垣分院 Adjustable peanut sorting machine
CN112191498A (en) * 2020-10-19 2021-01-08 蒋俊学 Concrete raw material screening device for building engineering
CN113210244A (en) * 2021-05-16 2021-08-06 湖北聚海环境科技有限公司 Utilize sorting unit of high temperature haydite waste heat in coordination with dehydration of high water content ardealite
CN117840020A (en) * 2024-03-04 2024-04-09 中豫全敬环保设备有限公司 Sand and stone screening device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5921400A (en) * 1994-11-25 1999-07-13 Judd; Melvyn John Apparatus for sieving a particulate material
CN111659604A (en) * 2020-06-08 2020-09-15 河南省农业科学院长垣分院 Adjustable peanut sorting machine
CN112191498A (en) * 2020-10-19 2021-01-08 蒋俊学 Concrete raw material screening device for building engineering
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