Concrete gravel recovery device
By designing the filter frame and auger blades, the problem of having to stop the machine to clean up sand and gravel accumulation in existing devices has been solved, achieving continuity and high efficiency in the sand and gravel recycling process, and simplifying the filter frame replacement process.
Patent Information
- Application Number
- CN202520135611.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-21
AI Technical Summary
Existing concrete aggregate recycling equipment must stop operating for cleaning when aggregate accumulates, which affects work efficiency.
The system employs a filter frame structure and auger blades in conjunction with a motor drive to achieve continuous filtration and discharge of sand and gravel. The filter frame can be quickly replaced to maintain continuous operation of the device.
It achieves the goal of not affecting work efficiency during sand and gravel recycling, and facilitates the replacement and maintenance of filter frames.
Smart Images

Figure CN223760528U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sand and gravel recovery, and specifically relates to a concrete sand and gravel recovery device. Background Art
[0002] Concrete, abbreviated as "concrete", refers to a general term for engineering composite materials in which aggregates are cemented into a whole by cementitious materials. Generally, the term "concrete" refers to cement concrete made of cement as the cementitious material, sand and stone as aggregates; mixed with water in a certain proportion and stirred. It is also called ordinary concrete and is widely used in civil engineering. After the production of concrete is completed, concrete residues will remain in the mixing machinery. In order to prevent the concrete residues from hardening and affecting the subsequent production of concrete, the mixing equipment needs to be washed after each production of concrete. The wastewater after washing the mixing equipment usually needs to pass through a sand and gravel recovery device to recover the sand and gravel in the wastewater to reduce resource waste.
[0003] The prior art proposes a sand and gravel recovery device for premixed concrete production as disclosed in Chinese Patent [Application No. CN202222566877.X], which includes a box body. An inlet is opened at the top of the box body. A filter screen is slidably connected at a position corresponding to the inlet in the box body. The sliding direction of the filter screen is along the direction of extending into or out of the box body, and one side of the filter screen extends out of the box body; collecting members for collecting the sand and gravel on the filter screen are arranged at the top and bottom of the filter screen; although this patent can slide the filter screen on the box body, arrange collecting members on the filter screen, and arrange a knocking component on the box body. When dumping the sand and gravel on the filter screen each time, if it is found that there is sand and gravel embedded in the filter screen, the filter screen is flipped, and the knocking component knocks on the filter screen, so that the sand and gravel embedded in the filter screen can be cleaned in time; however, there are certain defects in the above patent during use. For example, in actual use, the accumulation speed of sand and gravel is relatively fast. When there is a certain amount of sand and gravel accumulated on the filter screen and the fine filter screen, it must be extracted and then the sand and gravel are cleaned. During this process, the above device must stop the recovery work, thus affecting the work efficiency. Content of the Utility Model
[0004] The purpose of the utility model is to solve the disadvantages existing in the prior art, and to propose a concrete sand and gravel recovery device.
[0005] To achieve the above purpose, the utility model provides the following technical solutions:
[0006] A concrete aggregate recycling device includes a housing. A discharge port is located on one side of the housing, and an installation groove is located on the side of the housing away from the discharge port. A limiting plate is located inside the installation groove. A filter frame with a U-shaped structure is located on one side of the limiting plate. A support ring adapted to the discharge port is fixedly installed on the other side of the filter frame and inserted into the discharge port. An auger shaft is rotatably connected to one side of the limiting plate, and auger blades are fixedly connected to the outer surface of the auger shaft, located inside the filter frame. A first motor is fixedly installed on the side of the limiting plate away from the auger shaft, and the output end of the first motor is fixedly connected to the auger shaft via a coupling. An installation hole is located at the top of the housing, and an inlet pipe is fixedly installed inside the installation hole.
[0007] Preferably, one side of the limiting plate has a placement groove adapted to the filter frame, one end of the filter frame is located inside the annular groove, several sets of threaded grooves are opened on the periphery of the limiting plate, and fixing bolts are threadedly connected inside the threaded grooves. A limiting frame is fixedly connected to the outer surface of the limiting plate, one side of the limiting frame is fitted to the box body, several sets of through holes are opened on one side of the limiting frame, and a first screw is placed inside the through holes. A threaded hole adapted to the first screw is opened on one side of the box body.
[0008] Preferably, a support plate for supporting the filter frame is fixedly connected to one inner wall of the limiting plate.
[0009] Preferably, the bottom of the box is fixedly connected to a support leg, and the bottom of the box is fixedly connected to a drain pipe.
[0010] Preferably, a limiting ring for limiting the support ring is fixedly connected inside the discharge port.
[0011] The beneficial effects of this utility model are as follows: The concrete sand and gravel recycling device provided by this utility model allows for the recycling of sand and gravel from concrete wastewater. Wastewater is poured into the tank through the inlet pipe, and the wastewater is filtered by the filter frame, trapping the sand and gravel inside. Simultaneously, the first motor is started to rotate the auger shaft, causing the auger blades to rotate and push the sand and gravel to the discharge port. This setup allows for simultaneous wastewater pouring and sand and gravel discharge without affecting work efficiency. When the filter frame is damaged after prolonged use and needs replacement, the first screw can be turned to disengage it from the threaded hole, allowing the limiting plate to be removed, thus removing the filter frame. Then, the fixing bolts are turned to remove them from contact with the filter frame, facilitating replacement. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the basic structure of this utility model;
[0013] Figure 2This is a right sectional view of the housing of this utility model;
[0014] Figure 3 This is a schematic diagram of the discharge port structure of this utility model. Detailed Implementation
[0015] 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.
[0016] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0017] like Figure 1 - Figure 3 As shown, the present invention provides a concrete aggregate recycling device, including a housing 1. A discharge port 2 is provided on one side of the housing 1. An installation groove 3 is provided on the side of the housing 1 away from the discharge port 2. A limiting plate 4 is provided inside the installation groove 3. A filter frame 5 with a U-shaped structure is provided on one side of the limiting plate 4. A support ring 6 adapted to the discharge port 2 is fixedly installed on the other side of the filter frame 5. The support ring 6 is inserted into the discharge port 2. An auger shaft 7 is rotatably connected to one side of the limiting plate 4. An auger blade 8 is fixedly connected to the outer surface of the auger shaft 7. The auger blade 8 is located inside the filter frame 5. The side of the limiting plate 4 away from the auger shaft 7... A first motor 9 is fixedly installed, and the output end of the first motor 9 is fixedly connected to the auger shaft 7 via a coupling. The top of the housing 1 has an installation hole, and an inlet pipe 10 is fixedly installed inside the installation hole. When it is necessary to recover sand and gravel from concrete wastewater, the wastewater can be poured into the housing 1 through the inlet pipe 10. The wastewater is filtered by the filter frame 5, and the sand and gravel are blocked inside the filter frame 5. At the same time, the first motor 9 is started to rotate the auger shaft 7, so that the auger blades 8 rotate accordingly, pushing the sand and gravel to the discharge port 2 for discharge. This setting allows for the simultaneous pouring of wastewater and discharge of sand and gravel without affecting work efficiency.
[0018] The limiting plate 4 has a placement groove 11 on one side that matches the filter frame 5. One end of the filter frame 5 is located inside the annular groove. Several sets of threaded grooves are opened on the periphery of the limiting plate 4. The threaded grooves are connected to the fixing bolts 12. The outer surface of the limiting plate 4 is fixedly connected to the limiting frame 13. One side of the limiting frame 13 is fitted to the housing 1. Several sets of through holes 14 are opened on one side of the limiting frame 13. The first screw 15 is placed inside the through holes 14. The housing 1 has a threaded hole 16 that matches the first screw 15 on one side. When the filter frame 5 is damaged after long-term use and needs to be replaced, the first screw 15 can be turned to disengage it from the threaded hole 16, and the limiting plate 4 can be taken out, that is, the filter frame 5 can be taken out. Then, the fixing bolts 12 are turned to make them no longer in contact with the filter frame 5, and the filter frame 5 can be removed for easy replacement.
[0019] A support plate 17 for supporting the filter frame 5 is fixedly connected to one inner wall of the limiting plate 4; the support plate 17 facilitates the support of the filter frame 5.
[0020] The bottom of the box 1 is fixedly connected to a support leg 18, and the bottom of the box 1 is fixedly connected to a drain pipe 19; the drain pipe 19 is provided to facilitate the discharge of wastewater.
[0021] The discharge port 2 is internally fixedly connected with a limiting ring 20 for limiting the support ring 6; the setting of the limiting ring 20 facilitates the limiting of the support ring 6 and prevents the support ring 6 from easily detaching from the discharge port 2.
[0022] Working principle: When it is necessary to recycle sand and gravel from concrete wastewater, the wastewater can be poured into the inside of the tank 1 through the feed pipe 10. The wastewater is filtered by the filter frame 5, and the sand and gravel are blocked inside the filter frame 5. At the same time, the first motor 9 is started to rotate the auger shaft 7, which causes the auger blades 8 to rotate and push the sand and gravel to the discharge port 2 for discharge. This setting can discharge sand and gravel while pouring wastewater, without affecting work efficiency. When the filter frame 5 is damaged after long-term use and needs to be replaced, the first screw 15 can be turned to disengage it from the threaded hole 16, and the limiting plate 4 can be taken out, that is, the filter frame 5 can be taken out. Then, the fixing bolt 12 is turned to make it no longer in contact with the filter frame 5, and the filter frame 5 can be removed for easy replacement.
[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A concrete aggregate recycling device comprising a housing (1), characterised in that: The side of the box (1) is provided with a discharge port (2), and the side of the box (1) away from the discharge port (2) is provided with a mounting groove (3), the inside of the mounting groove (3) is provided with a limiting plate (4), one side of the limiting plate (4) is provided with a filter frame (5), the filter frame (5) is a U-shaped structure, the other side of the filter frame (5) is fixedly installed with a supporting ring (6) matched with the discharge port (2), the supporting ring (6) is inserted into the inside of the discharge port (2), one side of the limiting plate (4) is rotatably connected with an auger shaft (7), the outer surface of the auger shaft (7) is fixedly connected with an auger blade (8), the auger blade (8) is located in the inside of the filter frame (5), the side of the limiting plate (4) away from the auger shaft (7) is fixedly installed with a first motor (9), the output end of the first motor (9) is fixedly connected with the auger shaft (7) through a shaft coupling, the top of the box (1) is provided with a mounting hole, and the inside of the mounting hole is fixedly installed with an inlet pipe (10).
2. A concrete aggregate recycling device according to claim 1, characterized in that: The side of the limiting plate (4) is provided with a placing groove (11) matched with the filter frame (5), one end of the filter frame (5) is located in the inside of the annular groove, a plurality of groups of threaded grooves are formed in the circumferential side of the limiting plate (4), the inside of the threaded groove is threadedly connected with a fixing bolt (12), the outer surface of the limiting plate (4) is fixedly connected with a limiting frame (13), one side of the limiting frame (13) is connected with the box (1), a plurality of groups of through holes (14) are formed in one side of the limiting frame (13), the inside of the through hole (14) is placed with a first screw rod (15), and the side of the box (1) is provided with a threaded hole (16) matched with the first screw rod (15).
3. A concrete aggregate recycling device according to claim 1, characterized in that: The side of the limiting plate (4) is fixedly connected with a supporting plate (17) for supporting the filter frame (5).
4. A concrete aggregate recycling device according to claim 1, characterized in that: The bottom of the box (1) is fixedly connected with a supporting leg (18), and the bottom of the box (1) is fixedly connected with a drain pipe (19).
5. A concrete aggregate recycling device according to claim 1, characterized in that: The inside of the discharge port (2) is fixedly connected with a limiting ring (20) for limiting the supporting ring (6).
Citation Information
Patent Citations
Gravel recovery device for premixed concrete production
CN219722124U