Sand screening machine capable of dispersing and guiding materials

Abstract

The utility model relates to the technical field of sand screening equipment, in particular to a sand screening machine capable of dispersing and guiding materials, which comprises a conveyor, a shield, a screening cylinder and a feeding hopper, a protective cover is connected to the upper surface of the conveyor, a screening barrel is rotationally connected to the inner wall of the protective cover through a bearing, a feeding hopper is arranged on one side of the screening barrel, the feeding hopper is connected to the upper surface of the conveyor, a circulating mechanism is arranged on the other side of the screening barrel, and a blockage removing mechanism is arranged on the outer side of the screening barrel. According to the sand screening machine capable of dispersing and guiding the materials, screened sand is crushed and dispersed through the crusher and then discharged into the feeding hopper through the material guiding pipe to be screened again, and then the sand screening machine disperses and guides the materials; according to the sand screening machine capable of dispersing and guiding the materials, dust on the outer surface of the screening barrel is scraped off through the scraping plate, the protruding blocks on the surface of the protruding block roller are continuously meshed with the holes in the screening barrel, blockages in the holes of the screening barrel are pushed out, and then the sand screening machine is automatically dredged.

Description

Technical Field

[0001] The utility model relates to the technical field of sand screening equipment, in particular to a sand screening machine with dispersible material guiding. Background Technique

[0002] A sand screening machine generally consists of a storage hopper, a conveyor belt, a transmission device, a screening system, a screen cleaning part, etc.; it is mainly used for material processing in occasions such as concrete mixing plants, sand and gravel yards, etc. Fine sand leaks out from the screening cylinder and falls on the conveyor belt, and finally is conveyed away by the conveyor belt, while sand and stone particles are discharged from the tail of the screening cylinder. There are still certain defects in the existing sand screening machines during use, such as;

[0003] After the existing sand screening machines screen sand with a screening cylinder, most of them discharge the larger sand from the tail of the screening cylinder and pile it up at the tail. Most of them cannot disperse the larger sand, and then guide and convey the sand away. Moreover, when the sand screening machine is in use, it will inevitably be blocked by some impurities, and most of the existing sand screening machines do not have a dredging structure. If not handled in time, it will affect the screening effect. Content of the Utility Model

[0004] The purpose of the utility model is to provide a sand screening machine with dispersible material guiding to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A sand screening machine with dispersible material guiding, comprising: a conveyor, a protective cover, a screening cylinder and a feeding hopper;

[0006] The upper surface of the conveyor is connected with a protective cover, the inner wall of the protective cover is rotatably connected with a screening cylinder through a bearing, a feeding hopper is arranged on one side of the screening cylinder, the feeding hopper is connected to the upper surface of the conveyor, a circulation mechanism is arranged on the other side of the screening cylinder, and a blockage removal mechanism is arranged outside the screening cylinder;

[0007] The circulation mechanism includes: a crusher, a U-shaped part, a material guiding pipe, a material guiding hopper, a discharge pipe, a driving motor and a spiral rod. A crusher is connected to one side of the conveyor, the crusher is arranged on the side of the screening cylinder away from the feeding hopper, both the front parts of the conveyor and the protective cover are connected with U-shaped parts, and a material guiding pipe is connected inside the U-shaped parts. The material guiding pipe is arranged at the front parts of the conveyor and the protective cover.

[0008] Preferably, the bottom of the crusher is connected with a material guiding hopper, and the other end of the material guiding hopper is connected to the rear part of the material guiding pipe.

[0009] Preferably, the rear part of the material guiding pipe away from the material guiding hopper is connected with a discharge pipe, and the discharge pipe is arranged above the feeding hopper.

[0010] Preferably, one end of the material guiding pipe is connected with a driving motor through a motor base. The output end of the driving motor penetrates through the inner wall of the material guiding pipe and is connected with a spiral rod, and the spiral rod is rotationally connected to the inner wall of the material guiding pipe.

[0011] Preferably, the blockage removal mechanism includes: connecting ears, bump rollers, hanging plates, mounting plates and scraping plates. Two groups of connecting ears are connected above the inner wall of the protective cover. A bump roller is rotationally connected in the two groups of connecting ears, and the bump roller is meshed and connected to the outside of the screening cylinder.

[0012] Preferably, two groups of hanging plates are connected above the inner wall of the protective cover close to the connecting ears.

[0013] Preferably, a mounting plate is connected between the two groups of hanging plates.

[0014] Preferably, a scraping plate is connected to the bottom of the mounting plate through bolts, and the scraping plate abuts against the outside of the screening cylinder.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: for this sand screening machine with dispersible material guiding, the screened sand is broken and dispersed by a crusher, and then discharged into the feeding hopper through the material guiding pipe and screened again, so as to make the sand screening machine disperse the material; for this sand screening machine with dispersible material guiding, the dust on the outer surface of the screening cylinder is scraped off by a scraping plate, and the bumps on the surface of the bump roller continuously engage with the holes on the screening cylinder to push out the blockages in the holes of the screening cylinder, so as to automatically dredge the sand screening machine. The specific contents are as follows:

[0016] 1. The screened sand is broken and dispersed by a crusher, then enters the material guiding pipe from the material guiding hopper, and the driving motor drives the spiral rod to guide the sand upward and discharge it into the feeding hopper, where it is screened again by the screening cylinder, so as to make the sand screening machine disperse the material;

[0017] 2. The dust attached to the outer surface of the screening cylinder is scraped off by a scraping plate to prevent the outer wall of the screening cylinder from thickening. While the screening cylinder rotates, it drives the bump roller to rotate, and the bumps on the surface of the bump roller push out the blockages in the holes of the screening cylinder, so as to automatically dredge the sand screening machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 is a front view structural schematic diagram of the present utility model;

[0020] Figure 3 is a front view cross-sectional structural schematic diagram of the material guiding pipe of the present utility model;

[0021] Figure 4 is a three-dimensional structural schematic diagram of the bump roller of the present utility model;

[0022] Figure 5 This is a schematic side view cross-sectional structure diagram of the screening cylinder of the present utility model.

[0023] In the figure: 1, conveyor; 2, protective cover; 3, screening cylinder; 4, feeding hopper; 5, circulation mechanism; 501, crusher; 502, U-shaped part; 503, guide pipe; 504, guide hopper; 505, discharge pipe; 506, drive motor; 507, screw rod; 6, blockage removal mechanism; 601, connecting ear; 602, convex roller; 603, suspension plate; 604, mounting plate; 605, scraper. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1-3 , the present utility model provides a technical solution: a sand screening machine with dispersible material guiding, including: a conveyor 1, a protective cover 2, a screening cylinder 3 and a feeding hopper 4; the upper surface of the conveyor 1 is connected with a protective cover 2, the inner wall of the protective cover 2 is rotationally connected with a screening cylinder 3 through a bearing, a feeding hopper 4 is arranged on one side of the screening cylinder 3, the feeding hopper 4 is connected to the upper surface of the conveyor 1, a circulation mechanism 5 is arranged on the other side of the screening cylinder 3, and a blockage removal mechanism 6 is arranged outside the screening cylinder 3; the circulation mechanism 5 includes: a crusher 501, a U-shaped part 502, a guide pipe 503, a guide hopper 504, a discharge pipe 505, a drive motor 506 and a screw rod 507, one side of the conveyor 1 is connected with a crusher 501, the crusher 501 is arranged on the side of the screening cylinder 3 away from the feeding hopper 4, both the front parts of the conveyor 1 and the protective cover 2 are connected with U-shaped parts 502, a guide pipe 503 is connected inside the U-shaped parts 502, the guide pipe 503 is arranged in the front parts of the conveyor 1 and the protective cover 2, the bottom of the crusher 501 is connected with a guide hopper 4, the other end of the guide hopper 504 is connected to the rear part of the guide pipe 503, the rear part of the guide pipe 503 away from the guide hopper 504 is connected with a discharge pipe 505, the discharge pipe 505 is arranged above the feeding hopper 4, one end of the guide pipe 503 is connected with a drive motor 506 through a motor base, the output end of the drive motor 506 penetrates the inner wall of the guide pipe 503 and is connected with a screw rod 507, and the screw rod 507 is rotationally connected to the inner wall of the guide pipe 503.

[0026] During specific implementation, the crusher 501 is used to crush and disperse the screened sand, which then enters the feed pipe 503 from the feed hopper 504. The driving motor 506 drives the screw rod 507 to rotate, guiding the sand entering the feed pipe 503 upward and discharging it into the feeding hopper 4 from the discharge pipe 505, where it is screened again by the screening cylinder 3 to enable the sand screening machine to perform dispersed feeding.

[0027] Refer to Figure 5 As can be seen, the blockage removal mechanism 6 includes: connecting ears 601, bump rollers 602, hanging plates 603, mounting plates 604, and scraping plates 605. Two groups of connecting ears 601 are connected above the inner wall of the protective cover 2. A bump roller 602 is rotatably connected within the two groups of connecting ears 601. The bump roller 602 is meshed and connected to the outside of the screening cylinder 3. Above the inner wall of the protective cover 2 near the connecting ears 601, two groups of hanging plates 603 are connected. An mounting plate 604 is connected between the two groups of hanging plates 603. The bottom of the mounting plate 604 is bolted with a scraping plate 605, and the scraping plate 605 abuts against the outside of the screening cylinder 3.

[0028] During specific implementation, the scraping plate 605 is installed at the bottom of the mounting plate 604. When the screening cylinder 3 rotates, the scraping plate 605 scrapes off the dust adhering to the outer surface of the screening cylinder 3, preventing the outer wall of the screening cylinder 3 from thickening and affecting the rotation of the bump roller 602. While the screening cylinder 3 rotates, it drives the bump roller 602 to rotate within the two groups of connecting ears 601. The bumps on the surface of the bump roller 602 continuously mesh with the holes on the screening cylinder 3, pushing out the blockages in the holes of the screening cylinder 3 to enable the sand screening machine to be automatically unclogged and prevent the screening cylinder 3 from being blocked by foreign objects.

[0029] In summary: When using this sand screening machine with dispersed feeding function, first, transport the sand screening machine to the site where sand screening is required, connect the power supply and operate the controller at the front of the conveyor 1 to start the motor above the protective cover 2, and drive the screening cylinder 3 to rotate within the protective cover 2 using gears and external gear rings. Then, pour the sand to be screened into the feeding hopper 4. When the screening cylinder 3 rotates, it tumbles and screens the incoming sand. The smaller materials pass through the holes on the screening cylinder 3 and fall onto the surface of the conveyor belt of the conveyor 1, being transported to the other end and falling onto the ground for stacking. The larger materials fall into the crusher 501. The motor on the crusher 501 drives the two groups of crushing rollers to rotate, crushing and dispersing the larger sand, and then guiding it into the feeding hopper 4 through the feed pipe 503 for screening again. While the screening cylinder 3 rotates and screens, the scraping plate 605 scrapes off the dust adhering to the outer surface of the screening cylinder 3, and the bumps on the surface of the bump roller 602 push out the blockages in the holes of the screening cylinder 3 to prevent blockage. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0030] Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements on some technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A sand screening machine capable of dispersing and guiding materials, comprising: Conveyor (1), guard (2), screening drum (3) and feeding hopper (4), It is characterized by: The upper surface of the conveyor (1) is connected to a shield (2), and a screening drum (3) is rotatably connected to the inner wall of the shield (2) via a bearing. A feeding hopper (4) is provided on one side of the screening drum (3), and the feeding hopper (4) is connected to the upper surface of the conveyor (1). A circulation mechanism (5) is provided on the other side of the screening drum (3), and a blocking removal mechanism (6) is provided on the outer side of the screening drum (3); The circulation mechanism (5) comprises: a crusher (501), a U-shaped member (502), a material guide pipe (503), a material guide hopper (504), a discharge pipe (505), a drive motor (506) and a screw rod (507); one side of the conveyor (1) is connected to the crusher (501); the crusher (501) is arranged on a side of the screening drum (3) away from the feeding hopper (4); the front of the conveyor (1) and the protective cover (2) are both connected to the U-shaped member (502); the U-shaped member (502) is connected to the material guide pipe (503); the material guide pipe (503) is arranged in front of the conveyor (1) and the protective cover (2).

2. The sand screening machine capable of dispersing and guiding materials according to claim 1, characterized in that: The bottom of the crusher (501) is connected to a guide hopper (504), and the other end of the guide hopper (504) is connected to the rear of the guide pipe (503).

3. The sand screening machine capable of dispersing and guiding materials according to claim 2, characterized in that: The rear portion of the guide pipe (503) away from the guide hopper (504) is connected to a discharge pipe (505), and the discharge pipe (505) is arranged above the feeding hopper (4).

4. The sand screening machine capable of dispersing and guiding materials according to claim 1, characterized in that: One end of the material guide tube (503) is connected to a driving motor (506) via a motor base, and an output end of the driving motor (506) passes through the inner wall of the material guide tube (503) and is connected to a screw rod (507), and the screw rod (507) is rotatably connected to the inner wall of the material guide tube (503).

5. The sand screening machine capable of dispersing and guiding materials according to claim 1, characterized in that: The blockage removal mechanism (6) comprises: a connecting ear (601), a protruding roller (602), a hanging plate (603), a mounting plate (604) and a scraper (605); two groups of connecting ears (601) are connected above the inner wall of the shield (2); the two groups of connecting ears (601) are rotatably connected with the protruding roller (602); the protruding roller (602) is meshed and connected to the outer side of the screening drum (3).

6. The sand screening machine capable of dispersing and guiding materials according to claim 5, characterized in that: Two groups of hanging plates (603) are connected to the upper part of the inner wall of the shield (2) near the connecting ear (601).

7. The sand screening machine capable of dispersing and guiding materials according to claim 6, characterized in that: A mounting plate (604) is connected between the two groups of hanging plates (603).

8. The sand screening machine capable of dispersing and guiding materials according to claim 7, characterized in that: The bottom of the mounting plate (604) is connected to a scraper (605) via bolts, and the scraper (605) abuts against the outside of the screening drum (3).

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