Gravel screening device
By designing a multi-stage screening device for sand and gravel, the problem of manual cleaning and blockage of traditional devices is solved, and efficient grading screening and gravel is realized, and production efficiency and device functionality are improved.
Patent Information
- Application Number
- CN202420869415.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-04-25
AI Technical Summary
During construction, traditional sand and gravel screening devices require manual shutdown to remove unscreened sand and gravel for processing, which is time-consuming and labor-intensive, and sand and gravel are prone to clogging mesh holes, resulting in low screening efficiency.
A sand and gravel screening device is designed, including a screening box, a driving mechanism, a screen, a collection frame, a conveying mechanism and a crushing mechanism. The aperture and diameter of the screen mesh have become larger in sequence from top to bottom. Through multi-stage screening and crushing treatment, the grading screening and crushing of sand and gravel is realized into small pieces, and screened again, solving the problems of manual cleaning and blockage.
The full screening and grading of sand and gravel is achieved, the functionality of the device is increased, labor is saved, screening efficiency is improved, and the problem of sand and gravel is reduced.
Smart Images
Figure CN222625265U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of construction engineering, and in particular to a sand and gravel screening device. Background Art
[0002] Sand and gravel refers to a loose mixture of sand and crushed stone. In geology, mineral or rock particles with a particle size of 0.074 to 2 mm are called sand, and particles larger than 2 mm are called gravel or angular gravel (the difference between the two lies in the different degrees of roundness, see the entries for conglomerate and sandstone for details).
[0003] During the construction process, sand and gravel of different particle sizes have different functions. Therefore, when using sand and gravel, it is necessary to grade and screen the sand and gravel. If it still does not meet the requirements after multiple levels of screening, the device needs to be manually closed to take out the unscreened sand and gravel for processing, which is time-consuming and labor-intensive, and reduces production efficiency. In addition, sand and gravel are easy to clog the mesh during screening, resulting in low screening efficiency. For this reason, we propose a sand and gravel screening device. Utility Model Content
[0004] The purpose of the utility model is to provide a sand and gravel screening device to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sand and gravel screening device, which includes a screening box and a driving mechanism, wherein a feed hopper is connected to the top of the screening box; screen one, screen two, and screen three are arranged inside the screening box; screen one and screen two, and screen two and screen three are fixedly connected by a connecting frame; a collecting frame is detachably arranged in the connecting frame; the rotating rod is vertically arranged at the center of the collecting frame; a plurality of cleaning brushes are arranged on the outer wall of the rotating rod; conveying mechanisms are arranged on both sides of the screening box; the conveying mechanism is driven by a driving mechanism; and a crushing mechanism is installed on the top of the screening box.
[0006] Preferably, the conveying mechanism comprises two conveying boxes and a conveying rod, and the conveying rod is coaxially rotatably arranged with the conveying boxes via a bearing; a plurality of spiral conveying blades are distributed in an array on the outer wall of the conveying rod.
[0007] Preferably, the crushing mechanism includes two crushing boxes and a motor installed on the two crushing boxes; a crushing assembly is rotatably arranged inside the crushing box; the output end of the motor is transmission-connected to the crushing assembly; the input end of the crushing box is connected to the conveying box, and the output end of the crushing box is connected to the feed hopper.
[0008] Preferably, the driving mechanism comprises a second motor; the output end of the second motor is transmission-connected to a rotating rod; pulleys are installed at the bottom end of the rotating rod and the bottom ends of the two conveying rods; and the pulleys are connected to each other via a belt transmission.
[0009] Preferably, the screen one, screen two, and screen three are arranged in a stepped manner, and the screen one, screen two, and screen three are all hollow truncated cone structures, and the diameters of the screen one, screen two, and screen three increase from top to bottom; and the mesh diameters of the screen one, screen two, and screen three increase from top to bottom.
[0010] Preferably, the plurality of connection frames are hollow semi-cylindrical structures; the diameters of the collection frames are respectively matched with the diameters of the corresponding screen one, screen two, and screen three.
[0011] Preferably, the inclination angle of the cleaning brush is consistent with the corresponding angles of screen one, screen two, and screen three; the cleaning brush is in contact with the inner walls of screen one, screen two, and screen three.
[0012] Preferably, a discharge port is provided at the inner bottom end of the collecting frame, and a valve is provided on the discharge port.
[0013] Beneficial effect: Compared with the prior art, the beneficial effect of the utility model is as follows: through the arrangement of screen one, screen two, screen three and the collecting frame, the aperture and diameter of screen one, screen two and screen three become larger from top to bottom, and the sand and gravel slide down from top to bottom in sequence. The sand and gravel that slide down can be screened by screen one, screen two and screen three, thereby achieving full screening and grading of sand and gravel and increasing the functionality of the device; through the arrangement of the conveying box, conveying rod, spiral conveying blade, crushing box, crushing assembly and driving mechanism, larger sand and gravel that do not meet the requirements can be conveyed to the crushing box to be crushed into small pieces and then graded and screened again, thereby solving the problem of the traditional need to manually clean the unscreened sand and gravel and saving labor; through the cleaning arrangement, screen one, screen two and screen three can be cleaned to reduce the problem of low screening efficiency caused by sand and gravel blocking the mesh holes, which is conducive to cleaning the sand and gravel blocking the mesh holes, thereby improving the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 The utility model is a schematic diagram of the overall structure of a sand and gravel screening device.
[0015] Figure 2 This is a structural schematic diagram of a connection frame and a collection frame of a sand and gravel screening device proposed by the utility model.
[0016] Figure 3 This is a schematic diagram of the structure of a collecting frame and a rotating rod of a sand and gravel screening device proposed by the utility model, viewed from above.
[0017] In the attached drawings: 1-screening box, 2-screen one, 3-screen two, 4-screen three, 5-connecting frame, 6-collecting frame, 7-rotating rod, 8-cleaning brush, 9-conveying box, 10-conveying rod, 11-spiral conveying blade, 12-crushing box, 13-crushing assembly, 14-motor one, 15-motor two, 16-pulley, 17-belt, 18-feed hopper, 19-discharge port. DETAILED DESCRIPTION
[0018] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.
[0019] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.
[0020] Example
[0021] Please refer to the drawings of the specification. In the embodiment of the utility model, a sand and gravel screening device includes a screening box 1 and a driving mechanism. The top of the screening box 1 is connected and installed with a feed hopper 18; the interior of the screening box 1 is provided with a screen 1 2, a screen 2 3, and a screen 3 4; the screen 1 2 and the screen 2 3, and the screen 2 3 and the screen 3 4 are fixedly connected by a connecting frame 5; a collecting frame 6 is detachably provided in the connecting frame 5; the rotating rod 7 is vertically arranged at the center of the collecting frame 6; a plurality of cleaning brushes 8 are arranged on the outer wall of the rotating rod 7; conveying mechanisms are arranged on both sides of the screening box 1; the conveying mechanism is driven by a driving mechanism; A crushing mechanism is installed at the top of the screening box 1, and the conveying mechanism includes two conveying boxes 9 and a conveying rod 10. The conveying rod 10 is coaxially rotatable with the conveying box 9 through a bearing; a plurality of spiral conveying blades 11 are distributed in an array on the outer wall of the conveying rod 10, and the crushing mechanism includes two crushing boxes 12 and a motor 14 installed on the two crushing boxes 12; a crushing assembly 13 is rotatably arranged inside the crushing box 12; the output end of the motor 14 is transmission-connected with the crushing assembly 13; the input end of the crushing box 12 is connected to the conveying box 9, and the output end of the crushing box 12 is connected to the feed hopper 18, and the driving mechanism includes a motor 15; the output end of the motor 15 is connected to the rotating rod 7 in transmission; the bottom end of the rotating rod 7 and the bottom ends of the two conveying rods 10 are both equipped with a pulley 16; the pulleys 16 are connected by a belt 17 in transmission, the screen 1 2, the screen 2 3, the screen 3 4 are arranged in a stepped manner, the screen 1 2, the screen 2 3, the screen 3 4 are all hollow truncated cone structures, and the diameters of the screen 1 2, the screen 2 3, the screen 3 4 increase from top to bottom; and the mesh diameters of the screen 1 2, the screen 2 3, the screen 3 4 increase from top to bottom, and the multiple connecting frames 5 are hollow semi-cylindrical structures; the diameter of the collecting frame 6 is divided into The cleaning brush 8 is adapted to the diameters of the corresponding screens 1 2, 2, 3 and 3, and the front and rear lower ends of the screens 1 2, 2, 3 and 3 are higher in the middle and lower on both sides, so that the sand and gravel roll to the sides of the screens 1 2, 2, 3 and 3, and the sand and gravel on the screen umbrella 4 are convenient to roll into the conveying box 9. The inclination angles of the cleaning brush 8 are consistent with the corresponding angles of the screens 1 2, 2, 3 and 3, respectively; the cleaning brush 8 is fitted with the inner walls of the screens 1 2, 2, 3 and 3, and the inclinations of the screens 1 2, 2, 3 and 3 are 5-15 degrees. A discharge port 19 is provided at the inner bottom of the collecting frame 6.
[0022] Usage process:
[0023] When in use, start the motor 14 and the motor 2 15; the motor 14 crushing assembly 13 rotates, and the motor 2 15 drives the rotating rod 7 and the conveying rod 10 to rotate, and the sand and gravel raw materials are poured into the feed hopper 18, and the raw materials fall to the inclined screen 1 2 to screen the sand and gravel, and the large sand and gravel are blocked by the screen 1 2 and slide to the screen 2 3 for secondary screening, and the larger sand and gravel are blocked by the screen 2 3 and slide to the screen 3 4 for screening, and the sand and gravel that do not meet the classification requirements are discharged into the conveying box 9 through the material pipe at the lowest end of the screen 3 4, and the large sand and gravel are transported to the top of the conveying box 9 through the spiral conveying blade 11, and then slide into the crushing box 12 through the discharge pipe, and are crushed by the crushing assembly 13. After the crushing operation, it slides into the feed hopper 18 through the discharge pipe for screening. The large-particle sand and gravel that do not meet the requirements can be screened and crushed into sand and gravel of the required size. There is no need for manual secondary feeding, which saves labor. A collecting frame 6 is provided in the connecting frame 5, which can collect the sand and gravel screened out by the screen 1 2, the screen 2 3, and the screen 3 4, which is convenient for graded collection. The cleaning brush 8 is driven by the rotating rod 7 to rotate, and the screen 1 2, the screen 2 3, and the screen 3 4 can be cleaned to prevent the sand and gravel from being blocked in the mesh holes of the screen 1 2, the screen 2 3, and the screen 3 4, affecting the screening efficiency. The drum cleaning brush 8 rotates continuously to clean up the blocked sand and gravel, thereby improving the sand and gravel screening efficiency.
[0024] In the above process, through the setting of screen one, screen two, screen three and the collecting frame, the aperture and diameter of screen one, screen two and screen three become larger from top to bottom, and the sand and gravel slide down from top to bottom in turn. The sand and gravel that slide down can be screened by screen one, screen two and screen three, thereby achieving full screening and grading of sand and gravel and increasing the functionality of the device; through the setting of the conveying box, conveying rod, spiral conveying blade, crushing box, crushing assembly and driving mechanism, the larger sand and gravel that do not meet the requirements can be transported to the crushing box to be crushed into small pieces and then graded and screened again, solving the problem of traditional manual cleaning of unscreened sand and gravel, saving labor; through the cleaning setting, screen one, screen two and screen three can be cleaned to reduce the problem of low screening efficiency caused by sand and gravel blocking in the mesh, which is conducive to cleaning out the sand and gravel blocked in the mesh, thereby improving the screening efficiency; the present application has a simple structure, strong practicality, and simple operation, which is worth promoting.
[0025] The above are only preferred implementations of the utility model. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the utility model. These should also be regarded as the protection scope of the utility model. These will not affect the effect of the implementation of the utility model and the practicality of the patent.
Claims
1. A sand and gravel screening device, characterized in that: It includes a screening box, a rotating rod and a driving mechanism. A feed hopper is installed on the top of the screening box; Screen 1, Screen 2 and Screen 3 are arranged inside the screening box; Screen 1 and Screen 2, Screen 2 and Screen 3 are fixedly connected by a connecting frame; a collecting frame is detachably arranged in the connecting frame; the rotating rod is vertically arranged at the center of the collecting frame; a plurality of cleaning brushes are arranged on the outer wall of the rotating rod; conveying mechanisms are arranged on both sides of the screening box; the conveying mechanism is driven by a driving mechanism; a crushing mechanism is installed on the top of the screening box.
2. A sand and gravel screening device according to claim 1, characterized in that: The conveying mechanism comprises two conveying boxes and a conveying rod, wherein the conveying rod is coaxially rotatably arranged with the conveying box via a bearing; a plurality of spiral conveying blades are distributed in an array on the outer wall of the conveying rod.
3. A sand and gravel screening device according to claim 1, characterized in that: The crushing mechanism includes two crushing boxes and a motor installed on the two crushing boxes; a crushing assembly is rotatably arranged inside the crushing box; the output end of the motor is transmission-connected to the crushing assembly; the input end of the crushing box is connected to the conveying box, and the output end of the crushing box is connected to the feed hopper.
4. A sand and gravel screening device according to claim 1, characterized in that: The driving mechanism comprises a second motor; the output end of the second motor is transmission-connected to a rotating rod; the bottom end of the rotating rod and the bottom ends of two conveying rods are both provided with pulleys; the pulleys are connected to each other through a belt transmission.
5. The sand and gravel screening device according to claim 1, characterized in that: The screen one, screen two and screen three are arranged in a stepped manner, and the screen one, screen two and screen three are all hollow truncated cone structures, and the diameters of the screen one, screen two and screen three increase from top to bottom; and the mesh diameters of the screen one, screen two and screen three increase from top to bottom.
6. A sand and gravel screening device according to claim 1, characterized in that: The plurality of connection frames are in a hollow semi-cylindrical structure; the diameters of the collection frames are respectively matched with the diameters of the corresponding screen mesh one, screen mesh two, and screen mesh three.
7. A sand and gravel screening device according to claim 1, characterized in that: The inclination angles of the cleaning brush are respectively consistent with the corresponding angles of the first screen, the second screen, and the third screen; the cleaning brush is in contact with the inner walls of the first screen, the second screen, and the third screen.
8. The sand and gravel screening device according to claim 1, characterized in that: The inner bottom end of the collecting frame is provided with a discharge port, and a valve is provided on the discharge port.