Sand screening equipment for constructional engineering
By using inclined screening plates and synchronous drive components in construction sand screening equipment for multi-level screening, and using synchronous pull-up plates and dredging brushes for rapid cleaning, the problem of untimely screening of sand in existing equipment and prone to clogging of screening plates in existing equipment is solved, and efficient screening and convenient cleaning is achieved.
Patent Information
- Application Number
- CN202420348896.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-26
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-02-26
AI Technical Summary
During the multi-stage screening process of existing construction engineering sand screening equipment, the sand may be discharged directly due to its proximity to the discharge port, resulting in untimely screening, affecting the quality of the sand, and the screen plate is easily blocked, requiring manual cleaning, and low efficiency.
A construction project sand screening equipment is designed, using at least three inclined screening plates for multi-stage screening, and the screen plate shaking screening is driven by synchronous drive components to reduce the risk of blockage. At the same time, synchronous pull plates and dredging brushes are used to achieve fast and convenient screen plate cleaning.
It effectively ensures the quality of sand screening, improves screening efficiency, reduces work difficulty, and realizes fast and convenient screening board cleaning, avoiding the troubles of blockage and manual cleaning.
Smart Images
Figure CN222607093U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of construction engineering, in particular to a construction engineering sand screening device. Background Art
[0002] Construction engineering refers to the engineering entity formed by the construction of various types of buildings and their ancillary facilities and the installation of supporting lines, pipelines, and equipment. In the construction process of construction engineering, concrete is needed for pouring. In the process of concrete processing, raw materials such as sand, gravel, and cement need to be mixed and stirred. Therefore, sand is one of the indispensable building materials in construction. In order to adapt to different construction environments, construction sand of different particle sizes is generally required, so sand screening equipment is often needed to screen and classify sand;
[0003] Existing construction engineering sand screening equipment often needs to perform multi-stage screening of sand. During the multi-stage screening process, at least three screen plates with different screening apertures are generally set to perform graded screening of the sand. When the sand on the upper screen plate falls on the screen plate below it and continues to be screened, the sand may be directly discharged because it is too close to the discharge port after falling. This will cause some sand to be unscreened in time, resulting in sand of different particle sizes being mixed together again. The re-mixed sand is directly discharged due to untimely screening, which affects the quality of the sand after screening. After the screen plate has been used for a period of time, the screen holes of the screen plate are often blocked by sand, so it is often necessary to manually disassemble the screen plate for cleaning and dredging. This dredging method is not only inconvenient, but also increases the difficulty of work. Utility Model Content
[0004] The utility model provides a construction engineering sand screening device, which is beneficial to ensuring the quality of sand after multi-stage screening and is beneficial to quickly and conveniently cleaning and dredging the screen plate, reducing the difficulty of work.
[0005] In order to solve the problems of the prior art, the utility model discloses a construction engineering sand screening device, comprising a sand screening box and a feed hopper, wherein the feed hopper is connected to the left side of the upper end of the sand screening box;
[0006] At least three inclined screen plates are arranged in sequence from top to bottom in the sand screening box, support springs are connected between the two sides of the lower ends of the screen plates and the inner walls of the sand screening box, arc-shaped protrusions are fixed on the left side of the lower ends of the screen plates, synchronous shafts are arranged under the screen plates, cams corresponding to the arc-shaped protrusions are fixed on the right sides of the upper and lower ends of the synchronous shafts, and a synchronous drive assembly is arranged outside the sand screening box;
[0007] The right side of the upper end of the screen plate is provided with a material guide inclined plate fixed to the right wall of the sand screening box;
[0008] A pull rod is provided above the screen plate, and a dredging brush is fixed to the right end of the pull rod. A synchronous pull plate is provided on the left side of the sand screening box. Two tension springs distributed up and down are connected between the synchronous pull plate and the sand screening box. The pull rods slide to the left and pass through the sand screening box, and the left ends of the pull rods are fixed to the right side of the synchronous pull plate.
[0009] Furthermore, the right side of the sand screening box is connected to at least three downwardly inclined discharge hoods, and the screen plates all extend outward and rightward into the adjacent discharge hoods.
[0010] Furthermore, the screening apertures of the three screen plates decrease sequentially from top to bottom, and the lengths of the three discharge covers decrease sequentially from top to bottom.
[0011] Furthermore, the inner bottom end of the sand screening box is inclined, and the lower left end of the sand screening box is connected to a discharge cover.
[0012] Furthermore, the left end of the material guiding inclined plate extends to the middle part of the upper end of the screen plate.
[0013] Furthermore, the synchronous drive assembly includes a drive motor, a main belt gear and at least three auxiliary belt gears, the drive motor is fixed to the left side of the sand screening box, and the main belt gear is fixed to the power end of the drive motor.
[0014] Furthermore, the synchronous shafts all rotate to the left and pass through the sand screening box, the three auxiliary belt gears are fixed one by one on the left ends of the three synchronous shafts, and the main belt gear and the auxiliary belt gear are connected by belts.
[0015] Compared with the prior art, the utility model achieves the following beneficial effects:
[0016] 1. Three screen plates with different screening apertures are set up to screen the sand at multiple levels, which is conducive to screening out sand of different particle sizes. The sand is guided to the middle of the upper end of the screen plate through the guide inclined plate to prevent the sand from being discharged directly from the discharge cover without being screened, which is conducive to more thorough screening and classification of the sand, and avoids the situation where the sand is directly discharged without timely screening, thus effectively ensuring the quality of the sand after screening;
[0017] 2. All cams are driven to rotate together through the work of the synchronous drive assembly. Therefore, after the cams reciprocate and hit the arc-shaped protrusions, all the screen plates are driven to shake and screen together, which is beneficial to improve the efficiency of sand screening;
[0018] 3. When the cam hits the arc-shaped protrusion and drives the screen plate to screen, it is helpful to reduce the amount of sand blocking the screen holes of the screen plate to avoid serious blockage of the screen plate, and through the synchronous pulling plate, all the dredging brushes are pulled at the same time to clean and dredge the upper surface of the corresponding screen plate, which is conducive to quick and convenient cleaning and dredging of the screen plate, and there is no need to disassemble and clean, the dredging efficiency is high, and the work troubles are effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0020] Figure 2 It is a schematic diagram of the overall internal structure of the utility model;
[0021] Figure 3 It is a schematic diagram of the enlarged structure of the A part of the utility model.
[0022] Figure 1-3 In the middle: sand screening box 1, feed hopper 2, screen plate 3, discharge cover 4, synchronous shaft 5, cam 6, arc-shaped convex block 7, support spring 8, discharge cover 9, drive motor 10, main belt gear 11, auxiliary belt gear 12, pull rod 13, dredging brush 14, synchronous pull plate 15, return spring 16, material guide inclined plate 17. DETAILED DESCRIPTION
[0023] A sand screening equipment for construction engineering:
[0024] like Figure 1-2 As shown, in this embodiment, it includes a sand screening box 1 and a feed hopper 2, the feed hopper 2 is connected to the left side of the upper end of the sand screening box 1, and at least three inclined screen plates 3 are sequentially arranged in the sand screening box 1 from top to bottom, and the right side of the upper end of the screen plate 3 is provided with a guide inclined plate 17 fixed to the right wall of the sand screening box 1, the screening apertures of the three screen plates 3 decrease from top to bottom, the lengths of the three discharge covers 4 decrease from top to bottom, and the left end of the guide inclined plate 17 extends to the middle of the upper end of the screen plate 3;
[0025] When the sand is screened by the device, the sand is added into the sand screening box 1 through the feed hopper 2. When the sand falls on the screen plate 3, since at least three screen plates 3 are provided, the sand is screened in multiple stages through three screen plates 3 with different screening apertures, which is conducive to screening out sand of different particle sizes, thereby facilitating adaptation to different building environments. In the screening process, the sand falling to the right will fall on the guide inclined plate 17. Since the left end of the guide inclined plate 17 extends to the middle of the upper end of the screen plate 3, the sand is guided to the middle of the upper end of the screen plate 3 through the guide inclined plate 17. The screen plate 3 will continue to screen the sand more thoroughly to avoid the sand being discharged directly from the discharge cover 4 without being screened, thereby facilitating more thorough screening and classification of the sand, and avoiding the situation where the sand is not screened in time and is directly discharged, thereby effectively ensuring the quality of the sand after screening.
[0026] like Figure 2 , 3 As shown, in this embodiment, both sides of the lower end of the screen plate 3 are connected to the inner wall of the sand screening box 1 with support springs 8, the left side of the lower end of the screen plate 3 is fixed with an arc-shaped protrusion 7, and a synchronous shaft 5 is provided below the screen plate 3. Cams 6 corresponding to the arc-shaped protrusion 7 are fixed on the right sides of the upper and lower ends of the synchronous shaft 5. The sand screening box 1 is provided with a synchronous drive component outside, and the synchronous drive component includes a drive motor 10, a main belt gear 11 and at least three auxiliary belt gears 12. The drive motor 10 is fixed to the left side of the sand screening box 1, and the main belt gear 11 is fixed to the power end of the drive motor 10. The synchronous shafts 5 rotate to the left and pass through the outside of the sand screening box 1. The three auxiliary belt gears 12 are fixed one by one to the left ends of the three synchronous shafts 5, and the main belt gear 11 and the auxiliary belt gear 12 are connected by belts;
[0027] When the sand is screened through the screen plate 3, the driving motor 10 is started and the main belt gear 11 is driven to rotate. The main belt gear 11 will drive the auxiliary belt gear 12 to rotate together. At the same time, the auxiliary belt gear 12 will drive the synchronous shaft 5 and the cam 6 to rotate together. Therefore, the rotating cam 6 will continuously hit the arcuate protrusion 7 along the inclined surface of the arcuate protrusion 7. Combined with the elasticity of the supporting spring 8, the screen plate 3 will be driven to shake and screen the sand. In summary, all the cams 6 are driven to rotate together through the work of the synchronous drive assembly. Therefore, after the cam 6 reciprocates and hits the arcuate protrusion 7, it is beneficial to drive all the screen plates 3 to shake and screen together at the same time, which is beneficial to improve the efficiency of sand screening.
[0028] like Figure 2 As shown, in this embodiment, the right side of the sand screening box 1 is connected with at least three downwardly inclined discharge covers 4, the screen plates 3 all extend outward and rightward into the adjacent discharge covers 4, the bottom end of the sand screening box 1 is inclined, and the lower left end of the sand screening box 1 is connected with a discharge cover 9;
[0029] When the sand is screened, the sand on the screen plate 3 will slide into the discharge hood 4 along the inclined surface and then be discharged from the discharge hood 4. Since the lengths of the three discharge hoods 4 decrease from top to bottom, the sand discharged from the discharge hood 4 will fall at different positions so as to distinguish and collect sand of different particle sizes, and the sand at the bottom of the sand screening box 1 will slide into the discharge hood 9 and finally be discharged from the discharge hood 9.
[0030] like Figure 2 As shown, in this embodiment, a pull rod 13 is provided above the screen plate 3, and a dredging brush 14 is fixed to the right end of the pull rod 13. A synchronous pull plate 15 is provided on the left side of the sand screening box 1. Two tension springs 16 distributed up and down are connected between the synchronous pull plate 15 and the sand screening box 1. The pull rods 13 slide to the left and pass through the outside of the sand screening box 1. The left ends of the pull rods 13 are fixed to the right side of the synchronous pull plate 15.
[0031] When the sand is in the screening process, the cam 6 hits the arc-shaped protrusion 7 and drives the screen plate 3 to be screened. Due to the continuous shaking of the screen plate 3, the amount of sand blocked in the screen holes of the screen plate 3 is reduced to avoid serious blockage of the screen plate 3. When the screen plate 3 needs to be cleaned and dredged more cleanly, the synchronous pull plate 15 is pulled to the left, the synchronous pull plate 15 will stretch the return spring 16, and the synchronous pull plate 15 will pull all the pull rods 13 and the dredging brush 14 to the left. When the dredging brush 14 moves to the top of the screen plate 3, the dredging brush 14 is set to be aligned with the screen plate. 3, the dredging brush 14 will sweep and dredge the screen plate 3, and after the synchronous pull plate 15 is released, the rebound force of the return spring 16 will automatically drive the synchronous pull plate 15, the pull rod 13 and the dredge brush 14 to move right and reset, and reciprocate in this way to achieve the effect of sweeping and dredging the screen plate 3 left and right. In summary, all the dredge brushes 14 are pulled at the same time by the synchronous pull plate 15, which is beneficial to cleaning and dredging the upper surfaces of all corresponding screen plates 3, thereby facilitating quick and convenient cleaning and dredging of the screen plate 3, and there is no need to disassemble and clean, the dredging efficiency is high, and the work trouble is effectively reduced.
Claims
1. A construction engineering sand screening device, comprising a sand screening box (1) and a feed hopper (2), wherein the feed hopper (2) is connected to the left side of the upper end of the sand screening box (1), characterized in that: At least three inclined screen plates (3) are sequentially arranged in the sand screening box (1) from top to bottom, support springs (8) are connected between the lower ends of the screen plates (3) and the inner walls of the sand screening box (1), arc-shaped protrusions (7) are fixed to the left side of the lower ends of the screen plates (3), synchronous shafts (5) are arranged below the screen plates (3), cams (6) corresponding to the arc-shaped protrusions (7) are fixed to the right sides of the upper and lower ends of the synchronous shafts (5), and a synchronous drive assembly is arranged outside the sand screening box (1); The right side of the upper end of the screen plate (3) is provided with a material guide inclined plate (17) fixed to the right wall of the sand screening box (1); A pull rod (13) is provided above the screen plate (3), and a dredging brush (14) is fixed to the right end of the pull rod (13). A synchronous pull plate (15) is provided on the left side of the sand screening box (1). Two tension springs (16) distributed vertically are connected between the synchronous pull plate (15) and the sand screening box (1). The pull rod (13) slides to the left and passes through the sand screening box (1), and the left end of the pull rod (13) is fixed to the right side of the synchronous pull plate (15).
2. A construction engineering sand screening equipment according to claim 1, characterized in that: The right side of the sand screening box (1) is connected to at least three downwardly inclined discharge covers (4), and the screen plates (3) all extend outwardly and rightward into the adjacent discharge covers (4).
3. A construction engineering sand screening equipment according to claim 2, characterized in that: The screening apertures of the three screen plates (3) decrease sequentially from top to bottom, and the lengths of the three discharge covers (4) decrease sequentially from top to bottom.
4. A construction engineering sand screening device according to claim 1, characterized in that: The inner bottom end of the sand screening box (1) is inclined, and the lower left end of the sand screening box (1) is connected to a discharge cover (9).
5. A construction engineering sand screening device according to claim 1, characterized in that: The left end of the material guiding inclined plate (17) extends to the middle of the upper end of the screen plate (3).
6. A construction engineering sand screening device according to claim 1, characterized in that: The synchronous drive assembly comprises a drive motor (10), a main belt gear (11) and at least three auxiliary belt gears (12); the drive motor (10) is fixed to the left side of the sand screening box (1); and the main belt gear (11) is fixed to the power end of the drive motor (10).
7. A construction engineering sand screening device according to claim 6, characterized in that: The synchronous shafts (5) all rotate to the left and pass through the sand screening box (1), and the three auxiliary belt gears (12) are fixed to the left ends of the three synchronous shafts (5) one by one, and the main belt gear (11) and the auxiliary belt gear (12) are connected by belts.