Drum-type material screening device

Abstract

The utility model discloses a drum-type material screening device which comprises a screening box, supporting legs are fixedly connected to the four corners of the bottom of the screening box, a discharging pipe is inserted in the middle of the bottom of the screening box, a valve is installed on one side of the discharging pipe, a discharging groove is fixedly connected to the upper end of the left side of the screening box, and a discharging groove is formed in the lower end of the left side of the screening box. A discharging inclined plate is installed at the bottom of an inner cavity of the discharging groove, and a discharging opening is formed in the middle of the front end of the discharging groove. The coarse sand crushing mechanism is installed at the bottom of the left side of the screening box, through a discharging groove, a discharging inclined plate and a discharging opening, screened stones and impurities are conveniently discharged out of the screening box, internal blockage of the drum type screening mechanism is avoided, through the coarse sand crushing mechanism, secondary screening is conveniently conducted after coarse sand is crushed, and the screening efficiency is improved. And through the feeding mechanism, the screened sand can be conveniently conveyed into the roller type screening mechanism at the lower end to be subjected to secondary screening.

Description

Technical Field

[0001] The utility model relates to the technical field of material screening, in particular to a drum-type material screening device. Background Art

[0002] A drum-type material screening device, also known as a drum screen or a cylindrical screen, is a commonly used industrial and mining equipment for grading, screening, and separating various materials. The design and application of this equipment are very important in multiple industries because it directly affects the material processing efficiency and the quality of the final product.

[0003] A drum-type molding sand screening device with the publication number of CN215141842U belongs to the technical field of molding sand processing; the drum-type molding sand screening device includes a feeding device, a screening mechanism, and an anti-blocking device. The feeding device and the screening mechanism are installed on a frame. The feeding device is installed at the feeding end of the screening mechanism, and the anti-blocking device is installed inside the screening mechanism. By installing a feeding device, a screening mechanism, an anti-blocking device, a waste collection box, and an aggregate box on the frame, the utility model can complete multiple processing procedures such as feeding, screening, and collection at one time, separate coarse sand, fragments, impurities, etc. from the molding sand to be screened, so that the screened molding sand can be put into use continuously, thereby improving the utilization rate of molding sand, reducing the processing cost, having high screening efficiency, good anti-blocking performance, saving time and effort, stable operation, and thorough screening. However, during the use of the above device, only fine sand can be screened, and it is difficult to crush the screened coarse sand for secondary screening, resulting in waste of resources. Therefore, it is necessary to provide a new drum-type material screening device to solve the above technical problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a drum-type material screening device to solve the above deficiencies in the prior art.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: A drum-type material screening device includes: a screening box, the four corners of the bottom of the screening box are fixedly connected with support feet, a discharge pipe is inserted in the middle of the bottom of the screening box, a valve is installed on one side of the discharge pipe, the upper left end of the screening box is fixedly connected with a discharge groove, a discharge inclined plate is installed at the bottom of the inner cavity of the discharge groove, and a discharge port is opened in the middle of the front end of the discharge groove;

[0006] Coarse sand crushing mechanism, a coarse sand crushing mechanism is installed at the bottom left of the screening box. Drum-type screening mechanisms are installed at the upper and lower ends inside the screening box. A feed trough is arranged on the left side of the drum-type screening mechanism. The feed trough is installed on the screening box, and the screening box is provided with an installation opening adapted to the feed trough. A feeding mechanism is installed in the middle of the inner cavity of the screening box. By providing a discharge trough, a discharge inclined plate and a discharge port, it is convenient to discharge the screened stones and impurities out of the screening box, avoiding blockage inside the drum-type screening mechanism. By providing a coarse sand crushing mechanism, it is convenient to crush the coarse sand and perform secondary screening, avoiding waste of the coarse sand after screening. By providing a feeding mechanism, it is convenient to transport the screened sand into the lower drum-type screening mechanism for secondary screening.

[0007] As a further description of the above technical solution: The coarse sand crushing mechanism includes a crushing box installed on the screening box. A first motor is installed at the rear end of the crushing box. The power output pipe of the first motor is connected to a rotating shaft, and the first motor penetrates the crushing box. The rotating shaft is rotatably connected to the crushing box. A hammer crusher is installed on the outer surface of the rotating shaft. A filter screen is installed at the bottom of the crushing box. By providing a crushing box, it is convenient to collect the coarse sand with water. By providing a motor, it is convenient to drive the hammer crusher on the rotating shaft to rotate. By providing a hammer crusher, it is convenient to crush the coarse sand so that its size reaches the fine sand standard for use. By providing a filter screen, it is convenient to screen the crushed coarse sand, and the coarse sand with a size reaching the fine sand standard can fall.

[0008] As a further description of the above technical solution: An installation groove adapted to the drum-type screening mechanism is opened on the right side of the crushing box, and the crushing box and the lower drum-type screening mechanism are rotationally connected. By opening an installation groove adapted to the drum-type screening mechanism on the right side of the crushing box, it is convenient for the screened coarse sand to enter the crushing box for crushing. Through the crushing box and the lower drum-type screening mechanism, it is convenient for the drum-type screening mechanism to rotate and be used normally.

[0009] As a further description of the above technical solution: The drum-type screening mechanism includes a second motor installed on the right side of the screening box. The power output end of the second motor is connected to a rotating rod. Four corners of the outer surface of the rotating rod are fixedly connected with connecting plates. The outer surface of the connecting plate is fixedly connected with a screening cylinder, and the screening box is provided with an installation opening adapted to the screening cylinder. By providing a second motor, it is convenient to drive the screening cylinder on the rotating rod to rotate and screen. By providing a connecting plate, it is convenient to fix the screening cylinder on the rotating rod and thus rotate with the rotating rod.

[0010] As a further description of the above technical solution: The upper rotating rod is rotatably connected to the discharge groove. The screening aperture of the upper screening cylinder is larger than that of the lower screening cylinder. By rotatably connecting the upper rotating rod to the discharge groove, the upper rotating rod is supported and fixed. By having the screening aperture of the upper screening cylinder larger than that of the lower screening cylinder, it is convenient to perform screening in layers.

[0011] As a further description of the above technical solution: The feeding mechanism includes an inclined plate installed in the middle of the inner cavity of the screening box. The front and rear ends of the upper surface of the inclined plate are fixedly connected with clamping plates. A limiting plate is installed on the right side of the clamping plates. The clamping plates are parallel to the lower feeding groove up and down. By providing the inclined plate, it is convenient to transport the sand screened by the upper drum-type screening mechanism to the lower feeding groove for feeding the lower drum-type screening mechanism. By providing the clamping plates, it is avoided that the sand slides from the front and rear ends. By providing the limiting plate, it is ensured that the size of the discharge port of the inclined plate is adapted to the size of the feeding groove, and it is avoided that the transported sand falls to the ground and causes waste.

[0012] As a further description of the above technical solution: The drum-type screening mechanism is inclinedly installed on the screening box. By inclinedly installing the drum-type screening mechanism on the screening box, it is ensured that when the drum-type screening mechanism rotates, the materials inside after screening can be discharged.

[0013] The utility model provides a drum-type material screening device, which has the following beneficial effects:

[0014] 1. By providing two groups of drum-type screening mechanisms, the upper drum-type screening mechanism screens stones, impurities and sand, and the lower drum-type screening mechanism screens coarse sand and fine sand. By providing a coarse sand crushing mechanism, it is convenient to crush the coarse sand and perform secondary screening, avoiding waste of the coarse sand after screening and improving the utilization rate of the sand of this device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of a drum-type material screening device proposed by the utility model Figure 1 ;

[0016] Figure 2 is a schematic diagram of the overall structure of a drum-type material screening device proposed by the utility model Figure 2 ;

[0017] Figure 3 is a schematic diagram of the structure analyzed in the utility model;

[0018] Figure 4 is a schematic diagram of the structure of the components disassembled in the utility model;

[0019] Figure 5 is a schematic diagram of the structure of the coarse sand crushing mechanism in the utility model;

[0020] Figure 6 This is a schematic structural diagram of the drum screening mechanism in the present utility model.

[0021] Legend:

[0022] 1. Screening box; 2. Support feet; 3. Discharge pipe; 4. Valve; 5. Discharge trough; 6. Discharge inclined plate; 7. Discharge port; 8. Coarse sand crushing mechanism; 801. Crushing box; 802. First motor; 803. Rotating shaft; 804. Hammer crusher; 805. Filter screen; 9. Drum screening mechanism; 901. Second motor; 902. Rotating rod; 903. Connecting plate; 904. Screening cylinder; 10. Feed trough; 11. Feeding mechanism; 1101. Inclined plate; 1102. Clamping plate; 1103. Limiting plate. Specific embodiments

[0023] 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.

[0024] Embodiment 1, referring to Figure 1 、 Figure 2 and Figure 3 , the present utility model discloses a drum-type material screening device, which can solve the problem that in the process of using the existing device, only fine sand can be screened, and it is difficult to crush and re-screen the coarse sand after screening, resulting in waste of resources. The device includes a screening box 1, support feet 2 are fixedly connected to the four corners of the bottom of the screening box 1, a discharge pipe 3 is inserted in the middle of the bottom of the screening box 1, a valve 4 is installed on one side of the discharge pipe 3, a discharge trough 5 is fixedly connected to the upper left end of the screening box 1, a discharge inclined plate 6 is installed at the bottom of the inner cavity of the discharge trough 5, and a discharge port 7 is opened in the middle of the front end of the discharge trough 5;

[0025] A coarse sand crushing mechanism 8 is installed at the bottom left of the screening box 1, a drum screening mechanism 9 is installed at the upper and lower ends of the inner cavity of the screening box 1, a feed trough 10 is arranged on the left side of the drum screening mechanism 9, the feed trough 10 is installed on the screening box 1, and the screening box 1 is provided with an installation opening adapted to the feed trough 10, and a feeding mechanism 11 is installed in the middle of the inner cavity of the screening box 1.

[0026] Working principle: The screening box 1 facilitates the installation and use of components. The support feet 2 facilitate providing height and bearing the weight of the device. The discharge pipe 3 and the valve 4 control the discharge of fine sand. The discharge groove 5, the discharge inclined plate 6, and the discharge port 7 facilitate discharging the screened stones and impurities out of the screening box 1 to avoid clogging inside the drum screening mechanism 9. The coarse sand crushing mechanism 8 facilitates crushing the coarse sand for secondary screening to avoid waste of the coarse sand after screening. The drum screening mechanism 9 facilitates screening the sand. The feed trough 10 facilitates feeding the drum screening mechanism 9. The feeding mechanism 11 facilitates transporting the screened sand into the lower drum screening mechanism 9 for secondary screening.

[0027] Embodiment 2, referring to Figure 4 、 Figure 5 and Figure 6 In this embodiment, the problem that the existing device can only screen fine sand during use and it is difficult to crush and secondarily screen the coarse sand after screening, resulting in waste of resources, is solved. The drum-type material screening device further includes that the coarse sand crushing mechanism 8 includes a crushing box 801 installed on the screening box 1. A first motor 802 is installed at the rear end of the crushing box 801. The power output pipe of the first motor 802 is connected to a rotating shaft 803, and the first motor 802 penetrates through the crushing box 801. The rotating shaft 803 is rotatably connected to the crushing box 801. A hammer crusher 804 is installed on the outer surface of the rotating shaft 803. A filter screen 805 is installed at the bottom of the crushing box 801. An installation groove adapted to the drum screening mechanism 9 is provided on the right side of the crushing box 801, and the crushing box 801 and the lower drum screening mechanism 9 are rotatably connected. The drum screening mechanism 9 includes a second motor 901 installed on the right side of the screening box 1. The power output end of the second motor 901 is connected to a rotating rod 902. Four corners of the outer surface of the rotating rod 902 are fixedly connected with connecting plates 903. A screening cylinder 904 is fixedly connected to the outer surface of the connecting plates 903. An installation opening adapted to the screening cylinder 904 is provided on the screening box 1. The upper rotating rod 902 is rotatably connected to the discharge groove 5. The screening aperture of the upper screening cylinder 904 is larger than that of the lower screening cylinder 904. The feeding mechanism 11 includes an inclined plate 1101 installed in the middle of the inner cavity of the screening box 1. Front and rear ends of the upper surface of the inclined plate 1101 are fixedly connected with clamping plates 1102. A limiting plate 1103 is installed on the right side of the clamping plates 1102. The clamping plates 1102 are parallel to the lower feed trough 10 up and down. The drum screening mechanism 9 is inclined and installed on the screening box 1.

[0028] Working principle: When in use, after placing this device in a suitable position, import the sand to be screened into the feeding trough 10, so that the sand enters the screening cylinder 904. After the sand enters the screening cylinder 904, turn on the second motor 901, drive the rotating rod 902 to rotate through the second motor 901, and make the screening cylinder 904 on the connecting plate 903 rotate. After the upper drum-type screening mechanism 9 screens the stones, impurities and sand, the stones and impurities in the screening cylinder 904 will roll into the discharge trough 5, and are discharged from the screening box 1 through the discharge inclined plate 6 and the discharge port 7, avoiding the speed caused by the stones and impurities to the upper drum-type screening mechanism 9. When the sand screened by the upper drum-type screening mechanism 9 falls, it drops onto the inclined plate 1101. By setting the clamping plate 1102, it is avoided that the sand slides from the front and rear ends. By setting the limiting plate 1103, it is ensured that the size of the discharge port of the inclined plate 1101 is adapted to the size of the feeding trough 10, avoiding waste caused by the transported sand falling to the ground, and then sliding to the lower feeding trough 10 for collection, so that the sand enters the lower drum-type screening mechanism 9 for screening. After screening, the fine sand drops to the bottom of the inner cavity of the screening box 1 for collection. The coarse sand in the lower screening cylinder 904 will slide into the crushing box 801. After the coarse sand enters the crushing box 801, turn on the first motor 802 to drive the hammer crusher 804 on the rotating shaft 803 to rotate. By setting the hammer crusher 804, it is convenient to crush the coarse sand so that its size meets the fine sand standard for use. After passing through the filter screen 805, the crushed coarse sand is screened, and the coarse sand with a size meeting the fine sand standard can fall for collection.

[0029] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0030] The above is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A drum-type material screening device, characterized in that: include: A screening box (1), wherein the four corners of the bottom of the screening box (1) are fixedly connected to support legs (2), a discharge pipe (3) is inserted in the middle of the bottom of the screening box (1), a valve (4) is installed on one side of the discharge pipe (3), a discharge trough (5) is fixedly connected to the upper left end of the screening box (1), a discharge inclined plate (6) is installed at the bottom of the inner cavity of the discharge trough (5), and a discharge port (7) is opened in the middle of the front end of the discharge trough (5); A coarse sand crushing mechanism (8) is installed at the bottom of the left side of the screening box (1), a drum-type screening mechanism (9) is installed at the upper and lower ends of the inner cavity of the screening box (1), a feed trough (10) is arranged on the left side of the drum-type screening mechanism (9), the feed trough (10) is installed on the screening box (1), and the screening box (1) is provided with an installation opening adapted to the feed trough (10), and a feeding mechanism (11) is installed in the middle of the inner cavity of the screening box (1).

2. A drum-type material screening device according to claim 1, characterized in that: The coarse sand crushing mechanism (8) comprises a crushing box (801) mounted on a screening box (1); a first motor (802) is mounted at the rear end of the crushing box (801); a power output pipe of the first motor (802) is connected to a rotating shaft (803); the first motor (802) passes through the crushing box (801); the rotating shaft (803) is rotatably connected to the crushing box (801); a hammer crusher (804) is mounted on the outer surface of the rotating shaft (803); and a filter screen (805) is mounted at the bottom of the crushing box (801).

3. A drum-type material screening device according to claim 2, characterized in that: The right side of the crushing box (801) is provided with a mounting groove adapted to the drum-type screening mechanism (9), and the crushing box (801) is rotatably connected to the lower end drum-type screening mechanism (9).

4. A drum-type material screening device according to claim 1, characterized in that: The drum-type screening mechanism (9) comprises a second motor (901) installed on the right side of the screening box (1); a power output end of the second motor (901) is connected to a rotating rod (902); four corners of the outer surface of the rotating rod (902) are fixedly connected to connecting plates (903); the outer surface of the connecting plate (903) is fixedly connected to a screening drum (904); and the screening box (1) is provided with a mounting opening adapted to the screening drum (904).

5. A drum-type material screening device according to claim 4, characterized in that: The rotating rod (902) at the upper end is rotatably connected to the discharge trough (5), and the screening aperture of the screening cylinder (904) at the upper end is larger than that of the screening cylinder (904) at the lower end.

6. A drum-type material screening device according to claim 1, characterized in that: The feeding mechanism (11) comprises an inclined plate (1101) installed in the middle of the inner cavity of the screening box (1), and a clamping plate (1102) is fixedly connected to the front and rear ends of the upper surface of the inclined plate (1101), and a limit plate (1103) is installed on the right side of the clamping plate (1102), and the clamping plate (1102) is vertically parallel to the lower end feeding trough (10).

7. The drum-type material screening device according to claim 1, characterized in that: The drum-type screening mechanism (9) is installed obliquely on the screening box (1).

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