Sand washing and screening device
By designing an automated sand washing and screening device, which uses a grid screen and a material blocking mechanism to automatically screen construction waste sand, the problem of time-consuming and labor-intensive manual screening in the existing technology has been solved, and a highly efficient and automated sand screening effect has been achieved.
Patent Information
- Application Number
- CN202420896179.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-04-28
AI Technical Summary
Existing methods for screening construction waste sand mainly rely on manual operation, which is time-consuming, labor-intensive, inefficient, and prone to omissions.
A sand washing and screening device is designed, which includes a screening mechanism, a first conveying mechanism and a sand washing equipment. It automatically screens construction waste sand using a grid screen and a baffle mechanism, and adjusts the large sand outlet by driving the baffle plate with a motor to achieve automated screening.
It achieves efficient automatic screening of construction waste sand, reduces manual operation, improves screening efficiency, avoids omissions, and adapts to screening needs of different sand types.
Smart Images
Figure CN222325402U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a sand washing and screening device. Background Art
[0002] At present, construction waste is often collected and processed into recycled building bricks. Construction waste sand is generally washed by sand washing machines to remove impurities covering the surface of the sand and gravel, and at the same time destroy the water vapor layer covering the sand particles to facilitate dehydration and achieve efficient sand washing and cleaning. However, since the sand is mixed with waste materials of different sizes, it is necessary to roughly screen it before sand washing to screen out sand materials that are too large to avoid affecting the subsequent sand washing work of the sand washing machine. The current screening method is generally to roughly screen and select and remove it manually, which is time-consuming and labor-intensive, and is prone to omissions and low efficiency. Utility Model Content
[0003] The utility model improves the above-mentioned problem, that is, the technical problem to be solved by the utility model is to provide a sand washing and screening device which is easy to use and efficient.
[0004] The utility model is constructed as follows: it includes a screening mechanism, a first conveying mechanism and a sand washing device which are sequentially arranged along the conveying direction of waste sand materials; the screening mechanism includes an inclined grille screen; a material guide funnel is arranged below the grille screen; a small sand material outlet is arranged between the grille screen and the material guide funnel; a material blocking mechanism is arranged above a lower side of the grille screen; a large sand material outlet is formed between the material blocking mechanism and the grille screen; and a second conveying mechanism is arranged below the large sand material outlet.
[0005] Furthermore, the material blocking mechanism includes a material blocking plate, a rotating shaft is arranged above the material blocking plate, and a plurality of connecting screws are arranged along the length direction of the rotating shaft, and the lower ends of the connecting screws are connected to the upper part of the material blocking plate.
[0006] Furthermore, a threaded hole is provided on the rotating shaft, and the threaded hole cooperates with the thread of the connecting screw.
[0007] Furthermore, a limiting block is provided at the lower part of the connecting screw, a convex groove is provided at the upper part of the baffle plate, and the limiting block at the lower part of the connecting screw is rotatably matched with the convex groove.
[0008] Furthermore, side plates are arranged in front and rear of the grille screen, bearings are installed on the side plates, both ends of the rotating shaft of the material blocking mechanism pass through the bearings of the two side plates respectively, and the rotating shaft is driven to rotate by a motor.
[0009] Furthermore, the first conveying mechanism is arranged at an angle, first baffles are arranged on both sides of the first conveying mechanism, the input end of the first conveying mechanism is located below the output end of the material guide funnel, and the output end of the first conveying mechanism extends into the input end of the sand washing equipment.
[0010] Furthermore, second baffles are arranged on both sides of the second conveying mechanism, wherein the height of the second baffle located on the outer side is higher than the height of the second baffle located on the inner side.
[0011] Furthermore, the first conveying mechanism and the second conveying mechanism are belt feeding mechanisms, and a plurality of supporting rollers are arranged below the upper belt of the belt feeding mechanism along its length direction.
[0012] Compared with the prior art, the utility model has the following beneficial effects: the device has a simple structure, a reasonable design, saves time and effort, and is easy to use. By dumping construction waste sand onto the grid screen, small sand passes through the grid screen and is transported to the sand washing equipment via the first conveying mechanism, and large sand that does not meet the requirements slides out through the large sand outlet to the second conveying mechanism and is transported to a separate area. After being subsequently crushed into small sand, it is dumped back into the grid screen for screening; the baffle plate can block and buffer the sand to prevent too much sand from rushing into the second conveying mechanism at one time. The height of the baffle plate can be adjusted by a connecting screw to change the size of the large sand outlet, thereby adapting to sand screening work in different situations. At the same time, when there is a situation where the sand is larger than the large sand outlet or the sand is accumulated, the motor drives the rotating shaft and the baffle plate to swing a certain angle, which is conducive to introducing the large sand into the second conveying mechanism for subsequent re-screening or screening after crushing. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a top view of an embodiment of the utility model;
[0014] Figure 2 This is a schematic diagram of the front structure of an embodiment of the utility model;
[0015] Figure 3 This is a schematic diagram of the structure of the material blocking mechanism of the embodiment of the utility model;
[0016] Figure 4 for Figure 3 A partial enlarged view of point A in the middle. DETAILED DESCRIPTION
[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0018] Example: Figure 1-4As shown, a sand washing and screening device is provided, comprising a screening mechanism 1, a first conveying mechanism 2 and a sand washing device 3 which are sequentially arranged along the conveying direction of waste sand materials, the screening mechanism 1 comprising an inclined grid screen 101, a material guide funnel 102 is arranged below the grid screen, a small sand material outlet 103 is arranged between the grid screen and the material guide funnel, a material blocking mechanism 4 is arranged above the lower side of the grid screen, a large sand material outlet 104 is formed between the material blocking mechanism and the grid screen, and a second conveying mechanism 5 is arranged below the large sand material outlet.
[0019] The discharge port of the material guiding funnel is provided with a partition rod 7.
[0020] A plurality of screening mechanisms may be arranged side by side, with a first conveying mechanism corresponding to a small sand material outlet of each screening device, and a second conveying mechanism may be shared by a large sand material outlet of each screening device.
[0021] The above-mentioned sand washing equipment is a sand washing machine, which is a prior art and will not be described in detail here.
[0022] In the embodiment of the utility model, the material blocking mechanism 4 includes a material blocking plate 401, a rotating shaft 402 is arranged above the material blocking plate, and a plurality of connecting screws 403 are arranged along the length direction of the rotating shaft, and the lower end of the connecting screw is connected to the upper part of the material blocking plate.
[0023] In an embodiment of the utility model, a threaded hole is provided on the rotating shaft, and the threaded hole is matched with the thread of the connecting screw; the height of the baffle plate can be adjusted by rotating the connecting screw, thereby changing the height of the large sand material outlet.
[0024] In the embodiment of the utility model, a limiting block 404 is provided at the lower part of the connecting screw, and a convex groove 405 is provided at the upper part of the baffle plate. The limiting block at the lower part of the connecting screw is rotatably matched with the convex groove.
[0025] In the embodiment of the present invention, in order to prevent the sand from scattering outward, side plates 406 are provided in front and rear of the grille screen.
[0026] In the embodiment of the utility model, bearings 407 are installed on the side plates, and both ends of the rotating shaft of the material blocking mechanism respectively penetrate the bearings of the two side plates, and the rotating shaft is driven to rotate by the motor 408.
[0027] In an embodiment of the utility model, the first conveying mechanism is inclined from bottom to top, and first baffles 201 are provided on both sides of the first conveying mechanism. The input end of the first conveying mechanism is located below the output end of the material guide funnel, and the output end of the first conveying mechanism extends into the input end of the sand washing equipment.
[0028] In the embodiment of the utility model, second baffles 501 are arranged on both sides of the second conveying mechanism, wherein the height of the second baffle located on the outer side is higher than the height of the second baffle located on the inner side.
[0029] In the embodiment of the utility model, the first conveying mechanism and the second conveying mechanism are belt feeding mechanisms, and a plurality of supporting rollers 6 are further arranged below the upper belt of the belt feeding mechanism along the length direction thereof.
[0030] The output end of the above-mentioned sand washing equipment is provided with a discharging belt conveyor mechanism 8.
[0031] In the embodiment of the utility model, when working: by pouring construction waste sand onto the grid screen, small sand passes through the grid screen and is transported to the sand washing equipment via the first conveying mechanism, and large sand that does not meet the requirements slides out through the large sand outlet to the second conveying mechanism, and is transported to a separate area, and is subsequently crushed into small sand and then poured back into the grid screen for screening; the baffle plate can block and buffer the sand to prevent too much sand from rushing into the second conveying mechanism at one time, and the height of the baffle plate can be adjusted by connecting the screw rod to adapt to the sand screening work in different situations. At the same time, when there is a situation where the sand is larger than the large sand outlet or the sand is accumulated, the motor drives the rotating shaft and the baffle plate to swing a certain angle, which is conducive to introducing the large sand into the second conveying mechanism, and then re-screening or screening after crushing.
[0032] Unless otherwise stated, any technical solution disclosed in the above utility model, if it discloses a numerical range, then the disclosed numerical range is a preferred numerical range. Any technician in the field should understand that the preferred numerical range is only a numerical value with a more obvious technical effect or representative value among many feasible numerical values. Since there are too many numerical values to be exhaustive, the utility model discloses only some numerical values to illustrate the technical solution of the utility model, and the numerical values listed above should not constitute a limitation on the scope of protection of the utility model.
[0033] If the words "first", "second" and so on are used in this article to limit components, those skilled in the art should know that the use of "first" and "second" is only for the convenience of description to distinguish the components. Unless otherwise stated, the above words have no special meaning.
[0034] At the same time, if the above-mentioned utility model discloses or involves components or structural parts that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connected by bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by one-piece molding using a casting process) (except when it is obviously impossible to use an one-piece molding process).
[0035] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in the above utility model include states or shapes that are approximate, similar or close thereto.
[0036] Any component provided by the utility model can be assembled from multiple separate components, or can be a separate component manufactured by an integrated forming process.
[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.
Claims
1. A sand washing and screening device, characterized in that: The invention comprises a screening mechanism, a first conveying mechanism and a sand washing device which are sequentially arranged along the conveying direction of waste sand materials. The screening mechanism comprises an inclined grille screen, a material guide funnel is arranged below the grille screen, a small sand material outlet is arranged between the grille screen and the material guide funnel, a material blocking mechanism is arranged above the lower side of the grille screen, a large sand material outlet is formed between the material blocking mechanism and the grille screen, and a second conveying mechanism is arranged below the large sand material outlet.
2. A sand washing and screening device according to claim 1, characterized in that: The material blocking mechanism comprises a material blocking plate, a rotating shaft is arranged above the material blocking plate, a plurality of connecting screws are arranged along the length direction of the rotating shaft, and the lower ends of the connecting screws are connected to the upper part of the material blocking plate.
3. A sand washing and screening device according to claim 2, characterized in that: The rotating shaft is provided with a threaded hole, and the threaded hole is matched with the thread of the connecting screw.
4. A sand washing and screening device according to claim 2, characterized in that: A limiting block is arranged at the lower part of the connecting screw rod, a convex groove is arranged at the upper part of the material blocking plate, and the limiting block at the lower part of the connecting screw rod is rotatably matched with the convex groove.
5. The sand washing and screening device according to claim 1, characterized in that: Side plates are arranged in front and rear of the grille screen, bearings are installed on the side plates, two ends of the rotating shaft of the material blocking mechanism respectively penetrate the bearings of the two side plates, and the rotating shaft is driven to rotate by a motor.
6. A sand washing and screening device according to claim 1, characterized in that: The first conveying mechanism is arranged obliquely, and first baffles are arranged on both sides of the first conveying mechanism. The input end of the first conveying mechanism is located below the output end of the material guide funnel, and the output end of the first conveying mechanism extends into the input end of the sand washing equipment.
7. A sand washing and screening device according to claim 1, characterized in that: Second baffles are arranged on both sides of the second conveying mechanism, wherein the height of the second baffle located on the outer side is higher than the height of the second baffle located on the inner side.
8. The sand washing and screening device according to claim 1, characterized in that: The first conveying mechanism and the second conveying mechanism are belt feeding mechanisms, and a plurality of supporting rollers are arranged below the upper belt of the belt feeding mechanism along the length direction thereof.