A sand and gravel screening mechanism
By designing a sand and gravel screening mechanism that includes multiple sets of alternately using magnet plates and vibrating components, the problem of iron particles entering the sand and gravel and screening again is solved, and the efficiency and effect of sand and gravel screening is improved.
Patent Information
- Application Number
- CN202421271234.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-05
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-06-05
AI Technical Summary
The structural design of the existing sand and gravel screening device is unreasonable, which causes iron particles to easily enter the sand and gravel again after magnetic absorption, and the screening mesh is prone to block holes, reducing the efficiency of sand and gravel screening.
A sand and gravel screening mechanism is designed, including a workbench, a material box, a screen, a discharge tank and a magnetic suction component. The magnetic suction component consists of multiple sets of magnet plates that are not on the same plane. The alternating use of magnet plates is achieved by rotating the motor and the rotation shaft to prevent iron particles from entering the sand and gravel again. At the same time, the vibrating component is used to prevent the screen from blocking holes.
Effectively prevent the iron particles on the magnet plate from entering the sand and gravel again under the friction of sand and gravel, improving the effect and efficiency of sand and gravel screening, and avoiding the phenomenon of clogging of the screen.
Smart Images
Figure CN222710223U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of screening equipment, in particular to a sand and gravel screening mechanism. Background Art
[0002] Ceramic tile is a kind of building or decoration material. Its raw materials are mostly made of clay and quartz sand, which are mixed after high temperature compression. It has high hardness and is very common in construction and decoration. In the production of ceramic tiles, sand and gravel of various sizes are needed. Sand and gravel need to be screened before being used in the production and processing of ceramic tiles. The purpose of sand and gravel screening is to separate the larger particles from the smaller particles in the ground sand and gravel, retain the smaller qualified sand and gravel, remove the larger particles of sand and gravel of inappropriate size, and remove the iron particles and other magnetic components contained in the sand and gravel to prevent the iron particles from affecting the quality of ceramic tile production and improve the corrosion resistance of ceramic tiles.
[0003] However, the structural design of the commonly used sand and gravel screening device is unreasonable. During the sand and gravel screening process, after the iron particles are removed by magnetic attraction, a large number of iron particles gather on the magnet. The iron particles on the magnet are easy to re-enter the sand and gravel under the friction of the sand and gravel, and the sand and gravel screening effect is not good; and after long-term use, sand and gravel with a diameter similar to that of the screen will cause the screen to be blocked, and sand and gravel particles that meet the size cannot fall from the screen, reducing the working efficiency of sand and gravel screening. Utility Model Content
[0004] In order to solve the technical problems in the prior art that the iron particles on the magnet are easy to re-enter the sand and gravel under the friction of the sand and gravel, the sand and gravel screening effect is not good, and the screen is prone to blockage after long-term use, which reduces the efficiency of sand and gravel screening, the utility model provides the following technical solutions.
[0005] The utility model discloses a sand and gravel screening mechanism, comprising a workbench and a first material box, a second material box and a third material box which are sequentially placed on the upper part of the workbench, a second screen is arranged above the second material box, the lower end of the second screen is connected to the third material box, a support frame is fixedly connected to the upper part of the workbench, a discharge tank provided with a large-aperture magnetic mesh is fixedly connected to the upper end of the support frame, a conveyor belt component for receiving sand and gravel which is fixedly connected to the support frame is arranged below the discharge tank, a first screen which is located above the first material box and has its lower end connected to the second screen is arranged below the end of the conveyor belt component, a magnetic attraction component is arranged at the end of the conveyor belt component, the magnetic attraction component comprises at least two groups of magnet plates which are not in the same plane and are fixed by a connecting plate, and the iron particles in the sand and gravel are cyclically and alternately magnetically attracted during the sand and gravel transportation process.
[0006] As a further technical solution, the magnetic attraction component includes two relatively arranged fixed plates fixed on the upper part of the end of the conveyor belt component and a rotating motor fixed on one side of the fixed plate, the output end of the rotating motor is connected to a rotating shaft, a conversion plate is fixed on the outer periphery of the rotating shaft, and the conversion plate is connected to at least two connecting plates that are not in the same plane.
[0007] As a further technical solution, the connecting plate is connected to the conversion plate via quick-release bolts.
[0008] As a further technical solution, one side of the workbench is fixed to a vibration component, and the vibration component includes a vertical plate fixed on one side of the workbench and a vibration motor located on the upper part of the vertical plate. The vibration motor is connected to a long axis, and the long axis is connected to a swing arm with a vibration end at the end perpendicular to the long axis, and the vibration end abuts against the first screen.
[0009] As a further technical solution, a rubber pad is provided at the abutment portion between the first screen and the vibrating end to prevent vibration friction from damaging the first screen.
[0010] As a further technical solution, a placement slot is provided at the upper end of the discharge tank, and the large-aperture magnetic net is provided with a placement handle matching the placement slot.
[0011] The beneficial effects of the utility model are as follows: the utility model can magnetically attract the iron particles in the sand and gravel for the first time above the discharge tank, and the magnetic attraction component can magnetically attract the iron particles in the sand and gravel for the second time at the end of the conveyor belt component, and the magnetic attraction component is provided with at least two groups of magnet plates, which can magnetically attract the sand and gravel conveyed by the conveyor belt component, and the two groups of magnet plates are used alternately. When there are fewer iron particles, another group of magnet plates can be replaced cyclically to prevent the iron particles on the magnet plates from entering the sand and gravel again under the friction of the sand and gravel, thereby improving the screening effect of the sand and gravel. A vibration component is provided on one side of the workbench, and the swing arm of the vibration component drives the vibration end to knock and vibrate the lower part of the first screen, thereby improving the screening efficiency of the sand and gravel and preventing the screen from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the sand and gravel screening mechanism of the utility model from the first perspective;
[0013] Figure 2 This is a schematic diagram of the sand and gravel screening mechanism of the utility model from a second viewing angle;
[0014] Figure 3 It is a schematic diagram of the magnetic components of the sand and gravel screening mechanism of the utility model;
[0015] Figure 4 It is a schematic diagram of the vibrating component of the sand and gravel screening mechanism of the utility model;
[0016] Figure 5 It is a schematic diagram of the discharge tank of the sand and gravel screening mechanism of the utility model;
[0017] In the figure: 1-workbench; 101-first material box; 102-second material box; 103-third material box; 2-support frame; 201-connecting column; 3-discharging tank; 301-placing slot; 302-discharging port; 4-large-aperture magnetic net; 401-placing handle; 5-conveyor belt component; 6-magnetic component; 601-fixed plate; 602-rotating motor; 603-rotating shaft; 604-conversion plate; 605-connecting plate; 606-magnet plate; 606-quick-release bolt; 7-first screen; 8-second screen; 9-vibration component; 901-vertical plate; 902-vibration motor; 903-long axis; 904-swing arm; 905-vibration end. DETAILED DESCRIPTION
[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.
[0019] In the description of the present invention, it should be understood that the terms "upper", "lower" and "both sides" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second" and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.
[0020] like Figure 1 and Figure 2As shown, the utility model is a sand and gravel screening mechanism, comprising a workbench 1 and a first material box 101, a second material box 102 and a third material box 103 placed in sequence on the upper part of the workbench 1, a second screen 8 is provided above the second material box 102, and the lower end of the second screen 8 is connected to the third material box 103, and the first material box 101, the second material box 102 and the third material box 103 are respectively used to receive sand and gravel of different particle sizes. A support frame 2 is fixedly connected to the upper part of the workbench 1, and a discharge tank 3 provided with a large-aperture magnetic net 4 is fixedly connected to the upper end of the support frame 2, and a conveyor belt component 5 for receiving sand and gravel fixedly connected to the support frame 2 is provided below the discharge tank 3, and the ground sand and gravel particles and sand and gravel powder are input from the silo to the discharge tank 3, and some iron particles are magnetically attracted by the large-aperture magnetic net 4, and then collected and taken out, and the magnetically attracted sand and gravel flow from the lower end of the discharge tank 3 to the conveyor belt component 5 for the next step of magnetic attraction and screening and separation.
[0021] like Figure 1 and Figure 5 As shown, in a preferred embodiment, the discharge tank 3 is fixed to the upper end of the support frame 2 by bolts or welding. A placement slot 301 is provided at the upper end of the discharge tank 3, and the placement slot 301 is a direction. The large-aperture magnetic net 4 is provided with a placement handle 401 matching the placement slot 301. The placement handle 401 is also a direction, which can be stably inserted into the placement slot 301 and is convenient for replacing the large-aperture magnetic net 4. The lower part of the discharge tank 3 is a conical structure, and a discharge port 302 is provided at its lower end, and sand and gravel flow from the discharge port 302 to the upper part of the conveyor belt component 5.
[0022] like Figure 1 and Figure 3 As shown, in a preferred embodiment, four connecting columns 201 are provided on the lower side of the upper part of the support frame 2, and the lower end of the connecting column 201 is welded or bolted to the conveyor belt component 5. The conveyor belt component 5 adopts the existing technology, and its structure is not repeated. The end of the conveyor belt component 5 is provided with a magnetic attraction component 6 that can magnetically attract sand and gravel for the second time. The end of the conveyor belt component 5 refers to the end where the conveyor belt component 5 drives the sand and gravel forward and causes the sand and gravel to fall.
[0023] In a preferred embodiment, the magnetic attraction component 6 includes two fixed plates 601 fixed to the upper end of the conveyor belt component 5, one side of one of the fixed plates 601 is fixedly connected to a rotating motor 602, the output end of the rotating motor 602 is connected to a rotating shaft 603, the two ends of the rotating shaft 603 are respectively rotatably connected to the two fixed plates 601, the outer periphery of the rotating shaft 603 is fixed to a conversion plate 604, the conversion plate 604 is connected to at least two connecting plates 605 that are not in the same plane, and of course, there can be more connecting plates 605. Each connecting plate 605 is provided with a plurality of magnet plates 606, and when the lower ends of the plurality of magnet plates 606 face the conveyor belt component 5, they can be in contact with or not in contact with the upper surface of the conveyor belt component 5, and can perform a second magnetic attraction on the sand and gravel transported by the conveyor belt component 5.
[0024] When in use, the rotating motor 602 drives the conversion plate 604 to rotate, so that the multiple connecting plates 605 drive the magnet plates 606 to magnetically attract the sand and gravel in a cyclic and alternating manner. The connecting plates 605 are connected to the conversion plate 604 through the quick-release bolts 607. When the first connecting plate 605 drives the first group of magnet plates 606 to magnetically attract a certain amount of iron particles or iron powder to the sand and gravel, the rotating motor 602 rotates to drive the second connecting plate 605 and the second group of magnet plates 606 to magnetically attract the sand and gravel. At this time, the first connecting plate 605 and the first group of magnet plates 606 can be quickly replaced by the quick-release bolts. As a result, the magnetic component 6 can cyclically replace another group of magnet plates 606 when there are fewer iron particles, preventing the iron particles on the magnet plates 606 from entering the sand and gravel again under the friction of the sand and gravel, thereby improving the screening effect of the sand and gravel.
[0025] like Figure 2 and Figure 4 As shown, a first screen 7 located above the first material box 101 is provided below the end of the conveyor belt component 5, and the lower end of the first screen 7 is connected to the second screen 8. The aperture of the first screen 7 is smaller than that of the second screen 8, and sand and gravel fall from the end of the conveyor belt component 5 to the first screen 7. Smaller sand and gravel that meet the particle size fall from the first screen 7 into the first material box 101, and sand and gravel that do not meet the particle size flow from the lower end of the first screen 7 to the second screen 8. Sand and gravel that meet the particle size of the second screen 8 fall from the second screen 8 into the second material box 102, and sand and gravel that do not meet the particle size of the second screen 8 fall from the lower end of the second screen 8 into the third material box 103, thereby completing multi-stage screening of sand and gravel.
[0026] In a preferred embodiment, one side of the workbench 1 is fixedly provided with a vibration component 9, and the vibration component 9 can prevent the mesh of the first screen 7 from being blocked. The vibration component 9 includes a vertical plate 901 fixed to one side of the workbench 1 and a vibration motor 902 located on the upper part of the vertical plate 901, the output end of the vibration motor 902 is connected with a long axis 903, and the end of the long axis 903 away from the vibration motor 902 is connected with a swing arm 904, the swing arm 904 is perpendicular to the long axis 903, and the end of the swing arm 904 away from the long axis 903 is fixedly connected with a vibration end 905, and the vibration end 905 abuts against the first screen 7. Preferably, a rubber pad is provided at the abutment between the first screen 7 and the vibration end 905 to prevent the first screen 7 from being damaged by vibration friction. When the vibration motor 902 drives the vibration end 905 to continuously knock and vibrate the first screen 7, the mesh of the first screen 7 can be prevented from being blocked.
[0027] The preferred specific implementation modes and embodiments of the utility model are described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the above implementation modes and embodiments, and various changes or equivalent substitutions can be made within the knowledge scope of those skilled in the art without departing from the concept of the utility model. Therefore, the utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the utility model.
Claims
1. A sand and gravel screening mechanism, comprising a workbench (1) and a first material box (101), a second material box (102) and a third material box (103) arranged in sequence on the upper part of the workbench (1), a second screen (8) being arranged above the second material box (102), and a lower end of the second screen (8) being connected to the third material box (103), characterized in that: The upper part of the workbench (1) is fixedly connected to a support frame (2), the upper end of the support frame (2) is fixedly connected to a discharge tank (3) provided with a large-aperture magnetic mesh (4), a conveyor belt component (5) fixedly connected to the support frame (2) for receiving sand and gravel is provided below the discharge tank (3), a first screen (7) located above the first material box (101) and connected to the second screen (8) at the lower end of the conveyor belt component (5) is provided below the end, and a magnetic attraction component (6) is provided at the end of the conveyor belt component (5), the magnetic attraction component (6) includes at least two groups of magnet plates (606) fixed by a connecting plate (605) that are not in the same plane, and cyclically and alternately magnetically attract iron particles in the sand and gravel during the sand and gravel transportation process.
2. The sand and gravel screening mechanism according to claim 1, characterized in that: The magnetic attraction component (6) comprises two fixed plates (601) arranged opposite to each other and fixed to the upper end of the conveyor belt component (5) and a rotating motor (602) fixed to one side of the fixed plate (601); the output end of the rotating motor (602) is connected to a rotating shaft (603); a conversion plate (604) is fixed to the outer periphery of the rotating shaft (603); and the conversion plate (604) is connected to at least two connecting plates (605) that are not in the same plane.
3. The sand and gravel screening mechanism according to claim 2, characterized in that: The connecting plate (605) is connected to the conversion plate (604) via quick-release bolts (607).
4. The sand and gravel screening mechanism according to claim 1, characterized in that: One side of the workbench (1) is fixed to a vibrating component (9), and the vibrating component (9) comprises a vertical plate (901) fixed to one side of the workbench (1) and a vibrating motor (902) located on the upper part of the vertical plate (901), the vibrating motor (902) is connected to a long axis (903), the long axis (903) is connected to a swing arm (904) having a vibrating end (905) at the end perpendicular to the long axis (903), and the vibrating end (905) is in contact with the first screen (7).
5. The sand and gravel screening mechanism according to claim 4, characterized in that: A rubber pad is provided at the abutment point between the first screen (7) and the vibrating end (905) to prevent vibration friction from damaging the first screen (7).
6. The sand and gravel screening mechanism according to claim 1, characterized in that: The upper end of the discharge tank (3) is provided with a placement groove (301), and the large-aperture magnetic net (4) is provided with a placement handle (401) matching the placement groove (301).