Centrifugal screening device for round sand

Abstract

The utility model relates to the technical field of round sand, and provides a centrifugal screening device for round sand, which comprises a tank body and a screening structure. The screening structure is arranged, a first motor is started to drive a first rotating shaft to enable a gear to drive a gear ring to rotate, so that the gear ring drives a centrifugal barrel to rotate, the centrifugal barrel rotates to enable a rotating ring to rotate in a first rotating groove, and therefore the centrifugal barrel is supported; the centrifugal cylinder rotates more stably, slag is fully dispersed and separated under the centrifugal effect, particles with the small diameter inside are screened through the screening net, round sand falls into the bottom end of the interior of the tank body, after screening is completed, the valve is opened, and the round sand is discharged outwards through the discharging pipe; and meanwhile, by opening a second door body and then opening a first door body, workers can conveniently take out waste residues in the centrifugal barrel, and therefore centrifugal screening of round sand in the slag is rapidly completed.

Description

Technical Field

[0001] This utility model relates to the field of round sand technology, and in particular to a centrifugal screening device for round sand. Background Technology

[0002] As a highly efficient and multifunctional abrasive material, round sand is widely used not only in industrial production but also as an important tool for home decoration and maintenance. A centrifugal screening device for round sand is a piece of equipment used to screen and separate particulate materials, mainly used in industries such as mining, chemical, and food.

[0003] To address this, patent CN220425882U discloses a sand screening device for sand mining operations, comprising a screening box, a vibration mechanism fixedly connected to the bottom of the screening box, a screen plate placed on the inner wall of the screening box, two sets of clamping plates fixedly connected to the bottom of the screen plate, two fixed plates fixedly connected to the bottom of the screening box, a set of clamping posts slidably connected to the surface of the fixed plates, a pulling plate fixedly connected to one end of each clamping post, a spring sleeved on the periphery of each clamping post, the two ends of the spring being fixedly connected to the fixed plate and the pulling plate respectively, the clamping posts being inserted into the clamping plates, and a cleaning mechanism installed on the inner wall of the screening box, the cleaning mechanism including a guide rod and a threaded screw, both ends of the guide rod being fixedly connected to the screening box. The purpose of this utility model is to provide a sand screening device for sand mining operations to solve the problems of inconvenient replacement and maintenance and poor cleaning convenience of existing screening devices;

[0004] The sand screening device mentioned above, used for sand mining construction, screens the mortar by vibration during use, which can easily result in a slow screening speed. The mortar tends to accumulate and is not easy to screen quickly, thus reducing work efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a centrifugal screening device for round sand, in order to solve the defect that existing centrifugal screening devices for round sand are not convenient for rapid screening.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a centrifugal screening device for round sand, including a tank and a screening structure;

[0007] Support legs are fixed at the bottom edge of the tank body, and a feed hopper is fixed on one side of the top of the tank body.

[0008] A discharge pipe is fixed at the middle position of the bottom of the tank. A screening structure is installed inside the tank. A cleaning structure is installed inside the screening structure. A second door is installed on one side of the tank.

[0009] Preferably, the screening structure includes a centrifuge cylinder, a rotating ring, a first rotating groove, a screening screen, a toothed ring, a second rotating groove, a shell, a gear, a first rotating shaft, a first motor, and a first door. The centrifuge cylinder is installed inside the tank. A rotating ring is fixed to the outside of the centrifuge cylinder. A first rotating groove is provided inside the tank outside the rotating ring. A screening screen is installed at the bottom of the centrifuge cylinder. A toothed ring is fixed at the middle position on the outside of the centrifuge cylinder. A second rotating groove is provided inside the tank outside the toothed ring. A shell is fixed to one side of the tank. A gear is installed inside the shell. A first rotating shaft is fixed inside the gear. A first motor is fixed to one end of the first rotating shaft. A first door is installed on one side of the bottom of the centrifuge cylinder.

[0010] Preferably, there are two sets of rotating rings, which are symmetrically distributed on the outside of the centrifuge cylinder. The rotating rings are rotatably connected to the tank body through the first rotating groove, and the screening screen is fixedly connected to the centrifuge cylinder by bolts.

[0011] Preferably, the interior of the housing is connected to the interior of the second rotating groove, the gear ring is meshed with a gear, and the bottom end of the first rotating shaft is movably connected to the bottom end of the interior of the housing.

[0012] Preferably, the top end of the first rotating shaft extends through the interior of the housing to the top end of the housing and is fixedly connected to the output end of the first motor, and the first door body is hinged to the centrifuge cylinder.

[0013] Preferably, the cleaning structure includes a second motor, a second rotating shaft, a stirring rod, a scraper, and a cleaning brush. The second motor is fixed at the middle position of the top of the tank. The second rotating shaft is installed inside the centrifuge cylinder. A stirring rod is fixed to the outside of the second rotating shaft. A scraper is fixed to one end of the stirring rod. A cleaning brush is fixed to the bottom end of the second rotating shaft.

[0014] Preferably, the top end of the second rotating shaft extends through the top end of the tank to the outside of the tank and is fixedly connected to the output end of the second motor. Several sets of stirring rods are provided, and the stirring rods are evenly distributed on the outside of the second rotating shaft. The scraper is made of rubber material, and the bottom end of the cleaning brush abuts against the top end of the sieve.

[0015] The centrifugal screening device for round sand provided by this utility model has the following advantages:

[0016] By incorporating a screening structure, the first motor drives the first rotating shaft, causing the gear to rotate. The gear meshes with the gear ring, which in turn drives the gear ring to rotate, thus rotating the centrifuge drum. The rotation of the centrifuge drum causes the rotating ring to rotate inside the first rotating groove, providing support and stabilizing the drum's rotation. This allows the slag to be fully dispersed and separated under centrifugal force, enabling smaller diameter particles to pass through the screening mesh. The round sand falls to the bottom of the tank. After screening, the valve is opened, allowing the round sand to be discharged through the discharge pipe. Simultaneously, the second door is opened, followed by the first door, facilitating the removal of waste residue from the centrifuge drum. This process quickly completes the centrifugal screening of the round sand within the slag.

[0017] By incorporating a cleaning structure, the second motor drives the second rotating shaft, causing the stirring rod to rotate. This rotation of the stirring rod agitates the slag inside the centrifuge drum, accelerating the slag screening process. Simultaneously, the first rotating groove drives the screening screen to rotate, cleaning the inside of the centrifuge drum. The screening screen is made of rubber, ensuring it won't damage the centrifuge drum during cleaning. Furthermore, the rotation of the rotating ring drives the toothed ring to rotate, cleaning the surface of the screening screen and effectively preventing clogging and maintaining the screening results. Attached Figure Description

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

[0019] Figure 2 This is a frontal cross-sectional view of the present invention.

[0020] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0021] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point B;

[0022] Figure 5 This is a three-dimensional structural diagram of the centrifuge cylinder of this utility model.

[0023] The following are the annotations in the diagram: 1. Tank body; 2. Support leg; 3. Feed hopper; 4. Discharge pipe; 5. Screening structure; 501. Centrifuge cylinder; 502. Rotating ring; 503. First rotating groove; 504. Screening screen; 505. Gear ring; 506. Second rotating groove; 507. Shell; 508. Gear; 509. First rotating shaft; 510. First motor; 511. First door; 6. Cleaning structure; 601. Second motor; 602. Second rotating shaft; 603. Stirring rod; 604. Scraper; 605. Cleaning brush; 7. Second door. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5 The present invention provides a centrifugal screening device for round sand, comprising a tank 1 and a screening structure 5.

[0026] Reference Figures 1-5As shown, support legs 2 are fixed at the bottom edge of the tank body 1, a feed hopper 3 is fixed to one side of the top of the tank body 1, and a discharge pipe 4 is fixed at the middle of the bottom of the tank body 1. A screening structure 5 is installed inside the tank body 1. The screening structure 5 includes a centrifuge cylinder 501, a rotating ring 502, a first rotating groove 503, a screening screen 504, a toothed ring 505, a second rotating groove 506, a shell 507, a gear 508, a first rotating shaft 509, a first motor 510, and a first door 511. The centrifuge cylinder 501 is installed inside the tank body 1. A rotating ring 502 is fixed to the outside of the centrifuge cylinder 501. The first rotating groove 503 is provided inside the tank body 1 outside the rotating ring 502. A screening screen 504 is installed at the bottom of the centrifuge cylinder 501. A toothed ring 505 is fixed at the middle of the outside of the centrifuge cylinder 501. The second rotating groove 506 is provided inside the tank body 1 outside the toothed ring 505. A shell is fixed to one side of the tank body 1. 507. A gear 508 is installed inside the housing 507. A first rotating shaft 509 is fixed inside the gear 508. A first motor 510 is fixed to one end of the first rotating shaft 509. A first door 511 is installed on one side of the bottom of the centrifuge cylinder 501. Two sets of rotating rings 502 are provided. The rotating rings 502 are symmetrically distributed on the outside of the centrifuge cylinder 501. The rotating rings 502 are rotatably connected to the tank 1 through the first rotating groove 503. The screening screen 504 is fixedly connected to the centrifuge cylinder 501 by bolts. The inside of the housing 507 is connected to the inside of the second rotating groove 506. The gear ring 505 is meshed with the gear 508. The bottom end of the first rotating shaft 509 is movably connected to the bottom end of the inside of the housing 507. The top end of the first rotating shaft 509 extends through the inside of the housing 507 to the top end of the housing 507 and is fixedly connected to the output end of the first motor 510. The first door 511 is hinged to the centrifuge cylinder 501.

[0027] By starting the second motor 601, the second rotating shaft 602 is driven to rotate the stirring rod 603. The rotation of the stirring rod 603 stirs the slag inside the centrifuge drum 501, thereby accelerating the screening of the slag. At the same time, the first rotating groove 503 drives the screening screen 504 to rotate and clean the inside of the centrifuge drum 501. The screening screen 504 is made of rubber, so it will not damage the centrifuge drum 501 during the cleaning process. In addition, the rotation of the rotating ring 502 drives the toothed ring 505 to rotate, thereby cleaning the surface of the screening screen 504, effectively preventing the inside of the screening screen 504 from becoming blocked and maintaining the screening results.

[0028] Reference Figure 2 and Figure 4As shown, a cleaning structure 6 is installed inside the screening structure 5. The cleaning structure 6 includes a second motor 601, a second rotating shaft 602, a stirring rod 603, a scraper 604, and a cleaning brush 605. The second motor 601 is fixed at the middle position of the top of the tank 1. The second rotating shaft 602 is installed inside the centrifuge cylinder 501. The stirring rod 603 is fixed to the outside of the second rotating shaft 602. The scraper 604 is fixed to one end of the stirring rod 603. The cleaning brush 605 is fixed to the bottom end of the second rotating shaft 602. The top end of the second rotating shaft 602 extends through the top of the tank 1 to the outside of the tank 1 and is fixedly connected to the output end of the second motor 601. Several sets of stirring rods 603 are provided. The stirring rods 603 are evenly distributed on the outside of the second rotating shaft 602. The scraper 604 is made of rubber. The bottom end of the cleaning brush 605 abuts against the top end of the screening screen 504. A second door 7 is installed on one side of the tank 1.

[0029] By starting the second motor 601, the second rotating shaft 602 is driven to rotate the stirring rod 603. The rotation of the stirring rod 603 stirs the slag inside the centrifuge drum 501, thereby accelerating the screening of the slag. At the same time, the first rotating groove 503 drives the screening screen 504 to rotate and clean the inside of the centrifuge drum 501. The screening screen 504 is made of rubber, so it will not damage the centrifuge drum 501 during the cleaning process. In addition, the rotation of the rotating ring 502 drives the toothed ring 505 to rotate, thereby cleaning the surface of the screening screen 504, effectively preventing the inside of the screening screen 504 from becoming blocked and maintaining the screening results.

[0030] Although the present invention 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 make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A centrifugal screening device for round sand, comprising a tank (1) and a screening structure (5); Its features are: Support legs (2) are fixed at the bottom edge of the tank (1), and a feed hopper (3) is fixed on one side of the top of the tank (1). A discharge pipe (4) is fixed at the middle position of the bottom end of the tank (1). A screening structure (5) is installed inside the tank (1). A cleaning structure (6) is installed inside the screening structure (5). A second door (7) is installed on one side of the tank (1). The screening structure (5) includes a centrifuge cylinder (501), a rotating ring (502), a first rotating groove (503), a screening screen (504), a toothed ring (505), a second rotating groove (506), a shell (507), a gear (508), a first rotating shaft (509), a first motor (510), and a first door (511). The centrifuge cylinder (501) is installed inside the tank (1). A rotating ring (502) is fixed on the outside of the centrifuge cylinder (501). The first rotating groove (503) is provided inside the tank (1) on the outside of the rotating ring (502). A screening screen (504) is installed at the bottom of the centrifuge cylinder (501). A toothed ring (505) is fixed at the middle position of the outer side of the centrifuge cylinder (501). A second rotating groove (506) is provided inside the tank body (1) outside the toothed ring (505). A shell (507) is fixed on one side of the tank body (1). A gear (508) is installed inside the shell (507). A first rotating shaft (509) is fixed inside the gear (508). A first motor (510) is fixed at one end of the first rotating shaft (509). A first door (511) is installed on one side of the bottom of the centrifuge cylinder (501). The cleaning structure (6) includes a second motor (601), a second rotating shaft (602), a stirring rod (603), a scraper (604), and a cleaning brush (605). The second motor (601) is fixed at the middle position of the top of the tank (1). The second rotating shaft (602) is installed inside the centrifuge cylinder (501). The stirring rod (603) is fixed on the outside of the second rotating shaft (602). A scraper (604) is fixed at one end of the stirring rod (603). A cleaning brush (605) is fixed at the bottom end of the second rotating shaft (602).

2. The centrifugal screening device for round sand according to claim 1, characterized in that: Two sets of rotating rings (502) are provided. The rotating rings (502) are symmetrically distributed on the outside of the centrifuge cylinder (501). The rotating rings (502) are rotatably connected to the tank body (1) through the first rotating groove (503). The screening screen (504) is fixedly connected to the centrifuge cylinder (501) by bolts.

3. A centrifugal screening device for round sand according to claim 1, characterized in that: The interior of the housing (507) is connected to the interior of the second rotating groove (506), the gear ring (505) is meshed with the gear (508), and the bottom end of the first rotating shaft (509) is movably connected to the bottom end of the interior of the housing (507).

4. A centrifugal screening device for round sand according to claim 1, characterized in that: The top end of the first rotating shaft (509) extends through the interior of the housing (507) to the top end of the housing (507) and is fixedly connected to the output end of the first motor (510). The first door (511) is hinged to the centrifuge cylinder (501).

5. A centrifugal screening device for round sand according to claim 1, characterized in that: The top end of the second rotating shaft (602) extends through the top end of the tank (1) to the outside of the tank (1) and is fixedly connected to the output end of the second motor (601). Several sets of stirring rods (603) are provided. The stirring rods (603) are evenly distributed on the outside of the second rotating shaft (602). The scraper (604) is made of rubber. The bottom end of the cleaning brush (605) abuts against the top end of the sieve (504).

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