Impurity filtering device for gravel
By introducing splash guards and a spray system into the sand and gravel filtration device, the dust problem was solved, achieving the effects of dust reduction and filtration, and protecting operators and the environment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA POWER CONSTR (YUNFU) NEW MATERIALS CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-05-19
AI Technical Summary
Existing sand and gravel filtration devices generate a large amount of dust during the feeding and filtration process, which endangers the health of operators and causes air pollution.
A dust-filtering device was designed, comprising a splash guard, a dust-prevention mechanism, and a spray system. The device uses pressurized water sprayed from the spray head to suppress dust, and utilizes the baffles and inclined design inside the filter cylinder to achieve the filtering effect.
It effectively reduced the impact of dust on the environment and personnel, lowered air pollution, and protected the air quality at the construction site.
Smart Images
Figure CN224253416U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of sand and gravel treatment technology, and specifically relates to a sand and gravel filter device. Background Technology
[0002] Sand and gravel refers to a loose mixture of sand and gravel. If the gravel in sand and gravel is mostly gravel, it is called sand and gravel. Some people also refer to sandstone as sand and gravel. Due to its good hardness and stable chemical properties, sand and gravel are often used as high-quality building materials and concrete raw materials. However, sand and gravel raw materials may contain impurities and need to be filtered. At this time, a filtration device is required.
[0003] Nowadays, sand and gravel filtration devices generate a lot of dust during use, whether it is during sand and gravel feeding or during the filtration process inside the filter cylinder. The dust particles are diffused in the air, which not only harms the respiratory health of on-site operators, but also spreads to the surrounding environment, causing air pollution. Utility Model Content
[0004] (1) Technical problems to be solved
[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a sand and gravel filtering device, which aims to solve the problem that a large amount of dust is generated in the existing technology, whether it is sand and gravel feeding or filtering in the filter cylinder. The dust particles are diffused in the air, which not only endangers the respiratory health of on-site operators, but also spreads to the surrounding environment, causing air pollution.
[0006] (2) Technical solution
[0007] To solve the above-mentioned technical problems, this utility model provides a sand and gravel filtering device, including a base frame, a conveyor frame fixed above the base frame, a conveyor belt installed above the conveyor frame, welding frames fixed on both sides of the conveyor frame, a feeding hopper fixed above one side of the welding frame, and a filtering device jointly installed below the feeding hopper and in the middle of the welding frame. The filtering device includes a pair of splash guards, and a dust prevention mechanism jointly installed above the pair of splash guards and above the feeding hopper. The dust prevention mechanism includes fixing blocks, and the fixing blocks are symmetrically fixed above the pair of splash guards and on both sides above the feeding hopper. Dust prevention components are installed above multiple fixing blocks, and protective frames are fixed on both sides above the feeding hopper.
[0008] Furthermore, the dust control assembly includes a spray frame, which is symmetrically fixed above the opposite fixed blocks. The opposite ends of the spray frame above the splash guard and the feed hopper are connected by a connecting pipe, and spray heads are provided on the inner side of the spray frame. The same end of the spray frames on both sides above the feed hopper is connected by a diversion pipe, and a first connecting pipe is connected to the middle of one side of the diversion pipe. A water pump is connected to the end of the first connecting pipe, and a second connecting pipe is connected to the other end of the water pump.
[0009] Furthermore, the spray heads are equidistantly distributed along the inner side of the spray frame, and the angle of the spray heads is designed to be downward inclined.
[0010] Furthermore, the splash guard and the spray rack above the feed hopper are connected at opposite ends by a connecting pipe.
[0011] Furthermore, the impurity filtering device includes a guide plate, which is fixed at the bottom of the feed hopper. Impurity filtering components are installed below the feed hopper and in the middle of the welding frame. Discharge plates are fixed on both sides above the conveyor frame, and a discharge plate is fixed on the upper section of one side of a pair of discharge plates.
[0012] Furthermore, the filter assembly includes a fixed frame, which is fixed to one side of the bottom of the feed hopper. A first bearing is installed in the middle of the fixed frame, and a second bearing is installed above one side of the welding frame. A transmission rod is installed in the middle of the first and second bearings, and connecting rods are provided around the periphery of the transmission rod. The ends of the multiple connecting rods are connected to filter cartridges. A fixing plate is fixed to one side of the welding frame, and a drive motor is installed above the fixing plate. Synchronous pulleys are fixed around the output end of the drive motor and one end of the transmission rod, and synchronous belts are sleeved around the periphery of the two synchronous pulleys.
[0013] Furthermore, the transmission rod is connected to the drive motor via two synchronous pulleys and a set of synchronous belts to form a driven transmission connection.
[0014] (3) Beneficial effects
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] During the feeding and filtration process of sand and gravel, personnel can connect the end of the second connecting pipe to an external water tank, then start the water pump. Guided by the first connecting pipe at the other end of the pump, the water is delivered to the diversion pipe. Then, using the flow-through effect of the connecting pipe, the pressurized water can be diverted to the spray racks located on both sides above the feeding hopper and above a pair of splash guards. At this time, the water can be sprayed out from the downward-sloping spray heads inside the spray racks, thereby effectively reducing the dust generated during the feeding and filtration process of sand and gravel, thus reducing the impact of dust on the surrounding environment and construction personnel. It is worth mentioning that protective frames are provided on both sides above the feeding hopper to protect the spray racks and prevent damage caused by the sand and gravel falling onto them.
[0017] The operator can pre-start the drive motor. Under the transmission of two synchronous pulleys and a set of synchronous belts, the transmission rod can rotate along the stable movable support of the first and second bearings, carrying the connecting rod and the filter cylinder. At the same time, the sand and gravel to be filtered are put into the feed hopper. Guided by the guide plate at the end of the feed hopper, the sand and gravel can enter the filter cylinder. At this time, the rotating filter cylinder can use the partitions on its inner side to repeatedly carry the sand and gravel up and down. With the filter holes and its own inclined design, the filter cylinder can effectively guide the sand and gravel and filter the impurities. The filtered impurities will be guided to the outside along the starting conveyor belt. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0020] Figure 2 This is a schematic diagram of a partial structure of the impurity filtering device;
[0021] Figure 3 for Figure 1 Schematic diagram of the structure at point A in the middle;
[0022] Figure 4 This is a partial schematic diagram of the filter assembly;
[0023] Figure 5 This is a schematic diagram of the dust prevention component.
[0024] The labels in the attached diagram are as follows: 1. Base frame; 2. Conveyor frame; 3. Conveyor belt; 4. Welding frame; 5. Feed hopper; 6. Filtering device; 61. Guide plate; 62. Filtering assembly; 621. Fixed frame; 622. First bearing; 623. Transmission rod; 624. Filter cylinder; 625. Connecting rod; 626. Second bearing; 627. Fixing plate; 628. Drive motor; 629. Synchronous pulley; 6210. Synchronous belt; 63. Discharge plate; 64. Splash guard; 7. Dust control mechanism; 71. Fixing block; 72. Dust control assembly; 721. Sprayer frame; 722. Connecting pipe; 723. Spray head; 724. Diverter pipe; 725. First connecting pipe; 726. Water pump; 727. Second connecting pipe; 73. Protective frame. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] This specific embodiment is a sand and gravel filtering device, the structural diagram of which is shown below. Figures 1 to 5As shown, the system includes a base frame 1, a conveyor frame 2 fixed above the base frame 1, a conveyor belt 3 installed above the conveyor frame 2, welding frames 4 fixed on both sides of the conveyor frame 2, a feeding hopper 5 fixed above one side of the welding frame 4, and a filter device 6 jointly installed below the feeding hopper 5 and in the middle of the welding frame 4. The filter device 6 includes a pair of splash guards 64, and a dust prevention mechanism 7 jointly installed above the pair of splash guards 64 and above the feeding hopper 5. The filter device 6 includes a guide plate 61, and the guide plate 61 is fixed at the bottom of the feeding hopper 5. A filter device 6 is installed below the feeding hopper 5 and in the middle of the welding frame 4. The filter assembly 62 includes a mounting frame 621, which is fixed to one side of the bottom of the feed hopper 5. A first bearing 622 is installed in the middle of the mounting frame 621, and a second bearing 626 is installed above one side of the welding frame 4. A transmission rod 623 is installed between the first bearing 622 and the second bearing 626, and connecting rods 625 are distributed around the periphery of the transmission rod 623. The ends of the multiple connecting rods 625 are connected to the filter cartridge 624. A fixing plate 627 is fixed to one side of the welding frame 4, and a drive motor 628 is installed above the fixing plate 627. Synchronous pulleys 629 are fixedly mounted around the output end of motor 628 and one end of transmission rod 623, and synchronous belts 6210 are sleeved around the periphery of the two synchronous pulleys 629. Transmission rod 623 is connected to drive motor 628 by means of two synchronous pulleys 629 and a set of synchronous belts 6210. Discharge plates 63 are fixedly mounted on both sides above the conveyor frame 2, and a discharge plate 63 is fixedly mounted on the upper part of one side of a pair of discharge plates 63. The operator can start drive motor 628 in advance. Under the transmission of two synchronous pulleys 629 and a set of synchronous belts 6210, transmission rod 623 can be driven smoothly. The connecting rod 625 and the filter cylinder 624 are rotated by the stable movable support of the first bearing 622 and the second bearing 626. At the same time, the sand and gravel to be filtered are put into the feed hopper 5. Under the guidance of the guide plate 61 at the end of the feed hopper 5, the sand and gravel can enter the filter cylinder 624. At this time, the rotating filter cylinder 624 can use the partitions on its inner side to repeatedly carry the sand and gravel up and down. With the filter holes and its own inclined design, the filter cylinder 624 can effectively guide the sand and gravel and filter the impurities in it. The filtered impurities will be guided to the outside along the starting conveyor belt 3.
[0027] The dust control mechanism 7 includes fixed blocks 71, which are symmetrically fixed above a pair of splash guards 64 and on both sides above the feed hopper 5. A dust control assembly 72 is installed above the multiple fixed blocks 71. The dust control assembly 72 includes a spray frame 721, which is symmetrically fixed above the corresponding fixed blocks 71. A connecting pipe 722 connects the opposite ends of the spray frames 721 above the splash guards 64 and the feed hopper 5. The spray racks 721 are connected at opposite ends by a connecting pipe 722. Spray heads 723 are provided on the inner side of each spray rack 721. A diversion pipe 724 is connected to the same end of the spray racks 721 located above the feed hopper 5. A first connecting pipe 725 is connected to the middle of one side of the diversion pipe 724. A water pump 726 is connected to the end of the first connecting pipe 725, and a second connecting pipe 727 is connected to the other end of the water pump 726. The spray heads 723 extend along the spray racks 721. The spray heads 723 are evenly distributed on the inner side and are designed with a downward angle. Protective frames 73 are fixed on both sides above the feed hopper 5. During the feeding and filtering of sand and gravel, personnel can connect the end of the second connecting pipe 727 to the external water tank, and then start the water pump 726. Under the guidance of the first connecting pipe 725 at the other end of the water pump 726, the water can be transported to the diversion pipe 724. Then, using the connecting pipe 722, the pressurized water can be diverted to the spray frames 721 set on both sides above the feed hopper 5 and above a pair of splash guards 64. At this time, the water can be sprayed out from the downward angled spray heads 723 on the inner side of the spray frame 721. This can effectively reduce the dust generated during the feeding and filtering of sand and gravel, thereby reducing the impact of dust on the surrounding environment and construction personnel. It is worth mentioning that protective frames 73 are set on both sides above the feed hopper 5 to protect this part of the spray frame 721, so as to avoid damage caused by the sand and gravel falling on the spray frame 721.
[0028] Working principle: The operator can pre-start the drive motor 628. Under the transmission of two synchronous pulleys 629 and a set of synchronous belts 6210, the transmission rod 623 can rotate along the stable moving support of the first bearing 622 and the second bearing 626, carrying the connecting rod 625 and the filter cylinder 624. At the same time, the sand and gravel to be filtered are put into the feed hopper 5. Under the guidance of the guide plate 61 at the end of the feed hopper 5, the sand and gravel can enter the filter cylinder 624. At this time, the rotating filter cylinder 624 can use the partitions on its inner side to repeatedly carry the sand and gravel up and down. With the filter holes and its own inclined design, the filter cylinder 624 can effectively guide the sand and gravel and filter the impurities. The filtered impurities will be guided to the outside along the starting conveyor belt 3. Secondly, the sand and gravel are fed and filtered. During the process, personnel can connect the end of the second connecting pipe 727 to an external water tank, then start the water pump 726. Under the guidance of the first connecting pipe 725 at the other end of the water pump 726, the water can be transported to the diversion pipe 724. Then, using the connecting pipe 722, the pressurized water can be diverted to the spray racks 721 set on both sides above the feed hopper 5 and above a pair of splash guards 64. At this time, the water can be sprayed out from the spray head 723 with a downward tilt design on the inner side of the spray rack 721. This can effectively reduce the dust generated during the feeding and filtering of sand and gravel, thereby reducing the impact of dust on the surrounding environment and construction personnel. It is worth mentioning that protective frames 73 are set on both sides above the feed hopper 5 to protect this part of the spray rack 721, so as to avoid damage caused by the feeding sand and gravel hitting the spray rack 721.
[0029] All technical features in this embodiment can be freely combined according to actual needs.
[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A device for removing impurities from sand and gravel, comprising a base frame (1), characterized in that, A conveyor frame (2) is fixed above the base frame (1), and a conveyor belt (3) is installed above the conveyor frame (2). Welding frames (4) are fixed on both sides of the conveyor frame (2). A feeding hopper (5) is fixed above one side of the welding frame (4). A filter device (6) is installed below the feeding hopper (5) and in the middle of the welding frame (4). The filter device (6) includes a pair of splash guards (64). A dust prevention mechanism (7) is installed above the pair of splash guards (64) and above the feeding hopper (5). The dust prevention mechanism (7) includes a fixing block (71). The fixing blocks (71) are symmetrically fixed above the pair of splash guards (64) and above the feeding hopper (5). A dust prevention component (72) is installed above the plurality of fixing blocks (71). A protective frame (73) is fixed on both sides above the feeding hopper (5).
2. The impurity removing device for sand and gravel according to claim 1, wherein The dust control assembly (72) includes a spray frame (721), and the spray frame (721) is symmetrically fixed above the opposite fixed block (71). The spray frame (721) above the splash guard (64) and the feed hopper (5) is connected to the opposite end by a connecting pipe (722). The inner side of the spray frame (721) is provided with spray heads (723). The same end of the spray frame (721) on both sides above the feed hopper (5) is connected to a diversion pipe (724). The middle part of one side of the diversion pipe (724) is connected to a first connecting pipe (725). The end of the first connecting pipe (725) is connected to a water pump (726). The other end of the water pump (726) is connected to a second connecting pipe (727).
3. The impurity removing device for sand and gravel according to claim 2, wherein The spray heads (723) are equidistantly distributed along the inner side of the spray frame (721), and the angle of the spray heads (723) is downward inclined.
4. The impurity removing device for sand and gravel according to claim 2, wherein The splash guard (64) and the spray rack (721) above the feed hopper (5) are connected by a connecting pipe (722) at opposite ends.
5. The impurity removing device for sand and gravel according to claim 1, wherein The impurity filtering device (6) includes a guide plate (61), which is fixed at the bottom of the feed hopper (5). A filter assembly (62) is installed below the feed hopper (5) and in the middle of the welding frame (4). Discharge plates (63) are fixed on both sides above the conveyor frame (2), and a discharge plate (63) is fixed on the upper section of one side of a pair of discharge plates (63).
6. The impurity removing device for sand and gravel according to claim 5, wherein The filter assembly (62) includes a mounting frame (621), which is fixed to one side of the bottom of the feed hopper (5). A first bearing (622) is installed in the middle of the mounting frame (621), and a second bearing (626) is installed above one side of the welding frame (4). A transmission rod (623) is installed in the middle of the first bearing (622) and the second bearing (626), and connecting rods (625) are provided around the transmission rod (623). The ends of the multiple connecting rods (625) are connected to the filter cartridges (624). A fixing plate (627) is fixed on one side of the welding frame (4), and a drive motor (628) is installed above the fixing plate (627). A synchronous pulley (629) is fixed around the output end of the drive motor (628) and one end of the transmission rod (623), and a synchronous belt (6210) is sleeved around the two synchronous pulleys (629).
7. The impurity removal device for sand and gravel according to claim 6, characterized by The transmission rod (623) is connected to the drive motor (628) by two synchronous pulleys (629) and a set of synchronous belts (6210).