A building material screening device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 丁云敏
- Filing Date
- 2025-07-02
- Publication Date
- 2026-06-12
Smart Images
Figure CN224346314U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of building material screening technology, and specifically relates to a building material screening device used outdoors. Background Technology
[0002] As is well known, in the field of building materials, especially in the molding of precast components or concrete, materials are usually screened at different levels to meet different molding standards. This screening is usually carried out using screening equipment. Currently, the most commonly used screening equipment is the sorting screen. However, there is no dedicated equipment for outdoor use in this field. Vibration sorting equipment is often used in the screening process. Such equipment has several technical problems in use, mainly: 1. Transport vehicles cannot directly dock with the screening equipment. During loading and unloading operations, materials need to be lifted vertically separately, which is labor-intensive and inefficient; 2. Material screening is mostly vertical, with a short screening stroke and poor screening accuracy; 3. The screening process of building materials causes serious dust pollution. The screening site is dusty, which seriously affects the working environment.
[0003] In view of the above-mentioned technical problems, it is essential for those skilled in the art to improve the existing building material screening device so as to achieve efficient screening of building materials for outdoor use, facilitate vehicle loading and unloading, and improve the screening site environment. Summary of the Invention
[0004] In view of the shortcomings of the prior art described above, this utility model proposes a building material screening device suitable for outdoor use. By setting an inclined conveyor belt and a drum screen, it can tilt and convey the material upwards while screening, thereby extending the screening stroke and the working height of the loading and unloading positions, and improving the screening accuracy.
[0005] The technical solution adopted by this utility model to solve its technical problem is:
[0006] A material screening device for construction includes an inclined conveyor frame and an inclined conveyor belt. A feeding hopper is located in the middle of the inclined conveyor belt, and a feeding port is located at the bottom of the feeding hopper. A raw material conveyor belt is located below the feeding port. A drum screen is located on the upper part of the inclined conveyor belt, on the feeding side of the raw material conveyor belt. The drum screen is located on the upper part of the inclined conveyor belt. A screening protective cover is provided around the drum screen. The inclined conveyor belt passes through the feeding hopper, and a conveyor belt protective cover is provided in the area above the feeding hopper.
[0007] A protective chamber for the feeding hopper is provided above the feeding hopper, and a spraying device is provided around the protective chamber for the feeding hopper.
[0008] The inclined conveyor belt is equipped with an end spraying device at its end.
[0009] The drum screen is provided with a side protective plate on its periphery. The side protective plate is arranged in an arc or inclined structure, which is used to guide the material that falls off the drum screen to the inclined conveyor belt.
[0010] A cleaning rod is provided on the top or side of the drum screen. The cleaning rod is equipped with several cleaning discs, cleaning plates, or cleaning brushes. The cleaning discs, cleaning plates, or cleaning brushes rotate with the cleaning rod and touch the drum screen to clean the screen surface.
[0011] The end of the drum screen is provided with a receiving plate, through which the material screened by the drum screen is guided outward.
[0012] The feed inlet includes a horizontal feed inlet and a bottom feed inlet, with the horizontal feed inlet facing the drum screen.
[0013] Both the spraying device and the end spraying device include a liquid supply pipe, and a high-pressure nozzle is provided at the bottom of the liquid supply pipe.
[0014] This utility model has the following beneficial effects: It includes an inclined conveyor frame and an inclined conveyor belt. A feeding hopper is located in the middle of the inclined conveyor belt, with a feeding port at the bottom of the hopper. A raw material conveyor belt is located below the feeding port. A drum screen is located on the feeding side of the raw material conveyor belt at the top of the inclined conveyor belt. A screening protective cover is provided around the drum screen. The inclined conveyor belt passes through the feeding hopper, and a conveyor belt protective cover is provided in the area above the feeding hopper. A feeding hopper protective chamber is located above the feeding hopper, and a spraying device is provided around the protective chamber. An end spraying device is provided at the end of the inclined conveyor belt. Through the above structural design, the material is completely sealed during the screening process, ensuring the surrounding environment of the screening site. The use of an inclined conveyor belt and the placement of the drum screen at the top of the inclined conveyor belt effectively extends the screening stroke and improves screening efficiency. Furthermore, this utility model also provides spraying devices at the feeding and receiving ends, which can provide high-pressure spraying at the connection points between the equipment and the external environment, preventing dust spillage, making it particularly suitable for use in open outdoor environments. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0017] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the present invention;
[0018] Figure 3 for Figure 2Enlarged schematic diagram of the structure of region A in the middle;
[0019] Figure 4 This is a schematic diagram of the usage state of this utility model;
[0020] Figure 5 This is a side view of the present invention.
[0021] In the diagram, 1. Conveyor frame; 11. Inclined conveyor belt; 2. Support frame; 21. Side guard plate; 22. Drive support; 23. Receiving plate; 24. Support frame; 25. Drum screen drive wheel; 26. Drive shaft; 27. Support frame; 28. Screen frame; 29. Screen mesh; 3. Screening protective cover; 31. Protective cover support frame; 32. Cleaning rod; 33. Cleaning rod drive wheel; 34. Cleaning plate; 4. Feed hopper protective bin; 41. Support frame; 5. Spraying device; 51. Water supply pipe; 52. Spraying main pipe; 53. High-pressure spray head; 6. Feed hopper; 61. Bottom feed port; 62. Horizontal feed port; 7. Raw material conveyor belt; 70. Horizontal support frame; 71. Horizontal roller; 72. Raw material conveyor belt; 8. End spraying device; 81. End main pipe; 82. End spray head; 9. Conveyor belt protective cover; 91. Protective support frame; 10. External vehicle. Detailed Implementation
[0022] The screening device disclosed in this utility model has a relatively novel and simple structure, but the effect of its overall structural improvement is obvious. In order to make the improved effect of this utility model clearer, the following describes this utility model in further detail through specific embodiments.
[0023] A building material screening device, as shown in the attached figure, includes an inclined conveyor frame 1 and an inclined conveyor belt 11, the purpose of which is to convey materials from low to high.
[0024] A feeding hopper 6 is provided in the middle of the inclined conveyor belt 11. The feeding hopper 6 is supported by legs on the conveyor frame 1. A feeding port is provided at the bottom of the feeding hopper 6. The feeding port includes a horizontal feeding port 62 and a bottom feeding port 61. The horizontal feeding port 62 is oriented towards the drum screen. A support frame 2 is provided at the upper part of the inclined conveyor belt 11. The support frame 2 is also inclined. The drum screen is fixed on the support frame 2. It includes a drive shaft 26 supported by a bearing seat. Multiple radial support frames 27 are provided on the drive shaft 26. The support frames 27 fix the screen frame 28. Multiple screen frames 28 are also provided. They are evenly distributed on the drive shaft 26. The periphery of the multiple screen frames 28 together supports and fixes the screen mesh 29.
[0025] Below the horizontal feed port 62 and the bottom feed port 61, a raw material conveyor belt 72 is provided. The raw material conveyor belt 72 is usually horizontally or inclined and faces the inside of the annular screen 29. The raw material conveyor belt 72 is supported by a horizontal support frame 70 on the conveyor frame 1. The horizontal support frame 70 is provided with several horizontal rollers 71, and the raw material conveyor belt 72 is arranged around the multiple horizontal rollers 71. Those skilled in the art can also extend the raw material conveyor belt 72 directly into the inside of the drum screen. When the equipment is in motion, the raw material conveyor belt 72 receives the material from the feed hopper 6 and transports the material into the inside of the drum screen.
[0026] In a more detailed design, in this embodiment, a drum screen is installed on the upper part of the inclined conveyor belt 11, to the right of the raw material conveyor belt 72. A screening protective cover 3 is installed around the drum screen. The inclined conveyor belt 11 passes through the feeding hopper 6, and a conveyor belt protective cover 9 is installed in the upper left area of the feeding hopper 6. The fixing structure of the conveyor belt protective cover 9 is relatively simple. A semi-circular arc-shaped protective support frame 91 is installed on the upper part of the conveyor frame 1, and the conveyor belt protective cover 9 is formed by covering the protective support frame 91 with a skin.
[0027] When setting the screening protective cover 3, several protective cover support frames 31 are provided on the upper part of the conveyor frame 1. The protective cover is fixed by the protective cover support frames 31, thereby forming the screening protective cover 3. After the above structural setting, both sides of the feeding hopper 6 are sealed by the protective cover, and the dust generated during the screening process is isolated from the outside. Since this equipment is set outdoors, the above can reduce dust pollution to the outside.
[0028] Based on the above structural configuration, this utility model provides a feed hopper protective chamber 4 above the feed hopper 6. The feed hopper protective chamber 6 is vertically supported by a support frame 41. A spraying device 5 is also provided on the feed hopper protective chamber 4. The spraying device 5 includes a water supply pipe 51, on which several spray main pipes 52 are provided. At the bottom of each of the spray main pipes 52, several high-pressure spray heads 53 are provided. When external equipment feeds material into the feed hopper 6, the feed hopper protective chamber 4 provides primary physical protection, and the spraying device 5 then uniformly suppresses the splashed dust.
[0029] Following the same design concept, an end spraying device 8 is provided at the end of the inclined conveyor belt 11. The end spraying device 8 includes an end main pipe 81 and an end spray head 82. With this structure, the dust generated during the loading process is uniformly reduced at the end of the inclined conveyor belt 11.
[0030] The working principle of this utility model is that the material is released onto the raw material conveyor belt 72 through the feeding hopper 6, and the raw material conveyor belt 72 then guides the material to the drum screen. The drum screen is set at an inclination, and the material is separated during the falling process. The finer material is guided onto the inclined conveyor belt 11 and is conveyed upward at an inclination. The larger pieces of material that are separated are guided outward by the material screen and then guided outward by the receiving plate 23 at the bottom of the drum screen.
[0031] During the tumbling process of the drum screen, the drum screen is provided with a side protection plate 21 by the support frame 2. The side protection plate 21 is arranged in an arc or inclined structure, which is used to guide the material that falls off the drum screen to the inclined conveyor belt 11 to avoid splashing.
[0032] In operation, the present invention has a cleaning rod 32 above the drum screen, and a plurality of cleaning plates 34, cleaning boards, or cleaning brushes are provided on the cleaning rod 32. In this embodiment, cleaning plates 34 are used. The cleaning plates 34 rotate with the cleaning rod 32 and touch the drum screen to clean the screen surface, and the textile block material is squeezed onto the screen mesh 29.
[0033] In summary, this utility model can be used in mining development, crushed material screening, and sand and gravel quarry impurity sorting. Users can select appropriate material standards to operate this device. It is important to note that the screening process of this product is a fully enclosed design. High-pressure spray systems are installed at both the feeding and receiving ends of the outdoor section to effectively eliminate dust pollution at the connection points between the equipment and the external environment, preventing dust spillage and ensuring a safe outdoor screening environment. The specific conveying structure uses an inclined conveyor belt, with the drum screen positioned above it, effectively extending the screening stroke and improving screening efficiency.
Claims
1. A building material screening device, characterized in that: It includes an inclined conveyor frame and an inclined conveyor belt. A feeding hopper is provided in the middle of the inclined conveyor belt, and a feeding port is provided at the bottom of the feeding hopper. A raw material conveyor belt is provided below the feeding port. A drum screen is provided on the feeding side of the raw material conveyor belt at the top of the inclined conveyor belt. The drum screen is located on the upper part of the inclined conveyor belt. A screening protective cover is provided around the drum screen. The inclined conveyor belt passes through the feeding hopper, and a conveyor belt protective cover is provided in the area above the feeding hopper. A protective chamber for the feeding hopper is provided above the feeding hopper, and a spraying device is provided around the protective chamber for the feeding hopper. The inclined conveyor belt is equipped with an end spraying device at its end.
2. The building material screening device as described in claim 1, characterized in that: The drum screen is provided with a side protective plate on its periphery, and the side protective plate is arranged in an arc-shaped or inclined structure.
3. The building material screening device as described in claim 1, characterized in that: A cleaning rod is provided on the top or side of the drum screen. The cleaning rod is equipped with several cleaning discs, cleaning plates, or cleaning brushes. The cleaning discs, cleaning plates, or cleaning brushes rotate with the cleaning rod and touch the drum screen to clean the screen surface.
4. The building material screening device as described in claim 1, characterized in that: The end of the drum screen is provided with a receiving plate, through which the material screened by the drum screen is guided outward.
5. The building material screening device as described in claim 1, characterized in that: The feed inlet includes a horizontal feed inlet and a bottom feed inlet, with the horizontal feed inlet facing the drum screen.
6. The building material screening device as described in claim 1, characterized in that: Both the spraying device and the end spraying device include a liquid supply pipe, and a high-pressure nozzle is provided at the bottom of the liquid supply pipe.