Sand and gravel recovery device

Abstract

The utility model discloses sand and stone recycling device, including the box, the box is equipped with the support frame of middle hollow, the support frame is equipped with the sieve material box on the sliding, the lateral wall of recycling box is equipped with electric telescopic handle, and the movable end of electric telescopic handle is hinged with the front end of sieve material box, and the rear of support frame is equipped with the lifting block of sieve material box, and the front end bottom wall of sieve material box is equipped with the discharge gate, and the upper end of box is equipped with the mounting bracket, and the mounting bracket is equipped with the sand and stone dispersing mechanism of adaptation sieve material box, and the box is equipped with the water spraying mechanism of adaptation sieve material box, and the lower end of support frame is hinged with the material guide screen of adaptation discharge gate, and the lateral wall of box is equipped with the first discharge gate of adaptation material guide screen, and the outer wall of box is equipped with the first sand and stone recycling box of adaptation first discharge gate. The utility model has the beneficial effects that in the tailing washing process, cooperation sand and stone dispersing mechanism can effectively accelerate sand and stone separation, improve sand and stone recovery efficiency, and reduce water consumption.

Description

Technical Field

[0001] This utility model relates to the field of sand and gravel recycling technology, and in particular to sand and gravel recycling devices. Background Technology

[0002] Concrete, as an engineering composite material, is widely used in construction engineering, highway engineering, bridges, and other fields. During the concrete production process, a small amount of waste material is often generated in the mixing plant. Since the quality requirements of different batches of concrete vary, the waste material often cannot be mixed with subsequent batches. Therefore, a recycling device is often needed to recover the waste material to obtain the sand and gravel within it for later reuse.

[0003] Current recycling devices mainly rely on water rinsing. However, due to the relatively viscous nature of concrete, the rinsing effect is poor, requiring a long rinsing time and consuming a large amount of water, resulting in a mismatch between cost and benefit. Utility Model Content

[0004] The purpose of this invention is to provide a sand and gravel recycling device that solves the problem that recycling devices mainly rely on water flow for rinsing, which results in poor rinsing effect due to the relatively viscous nature of concrete, requires long rinsing times, and consumes a large amount of water.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A sand and gravel recycling device includes a housing with a centrally hollowed-out support frame inside. A screening box is slidably mounted on the support frame. An electric telescopic rod is mounted on the side wall of the housing, and the movable end of the electric telescopic rod is hinged to the front end of the screening box. A lifting block is mounted on the support frame behind the screening box. A discharge port is located on the bottom front wall of the screening box. A mounting frame is mounted on the upper end of the housing, and a sand and gravel dispersing mechanism adapted to the screening box is mounted on the mounting frame. A water spraying mechanism adapted to the screening box is mounted on the housing. A guide screen plate adapted to the discharge port is hinged to the lower end of the support frame. A first discharge port adapted to the guide screen plate is located on the side wall of the housing. A first sand and gravel recycling box adapted to the first discharge port is located on the outer wall of the housing.

[0007] Furthermore, the screen hole size of the guide screen plate is the same as that of the screen box. A screen plate is inclinedly provided inside the box below the first discharge port. The screen hole size of the screen plate is smaller than that of the screen box. A second discharge port adapted to the screen plate is provided on the side wall of the box. A second sand and gravel recycling box adapted to the second discharge port is provided on the outer wall of the box.

[0008] Furthermore, the outer wall of the box is also provided with a water filter box, and the side wall of the box is provided with an overflow pipe that connects to the water filter box. The overflow pipe is located below the lowest end of the screen plate.

[0009] Furthermore, the mounting frame has a threaded adjusting rod on its horizontal plate, and an operating handwheel at the upper end of the threaded adjusting rod. The sand and gravel evacuation mechanism includes a pressure plate, the size of which is smaller than the size of the sieve box. The pressure plate is rotatably connected to the lower end of the threaded adjusting rod. The lower end of the pressure plate has several evacuation rods. Several drainage holes are provided on the pressure plate. A positioning rod is provided on the pressure plate. A guide hole adapted to the positioning rod is provided on the horizontal plate.

[0010] Furthermore, the water spraying mechanism includes water spraying pipes disposed on both sides of the box body, and the water spraying pipes are provided with a plurality of water spraying nozzles extending into the box body. The water spraying nozzles are located above the screen box, and the water spraying pipes are connected to a water inlet pipe, which is provided with a control valve.

[0011] Furthermore, the support frame includes support slide rods arranged opposite each other, the front end of the support slide rods is connected through a material outlet sealing plate, the rear end of the support slide rods is provided with mounting rods at intervals, and the lifting block is fixedly connected to the mounting rods.

[0012] Furthermore, the first discharge port is provided with a support spring adapted to the guide screen plate.

[0013] This invention has the following advantages: during the tailings washing process, the sand and gravel dispersion mechanism can effectively accelerate the separation of sand and gravel, improve the sand and gravel recycling efficiency, and reduce water consumption. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a top view of the present invention without the sand and gravel evacuation mechanism installed.

[0016] Figure 3 This is a schematic diagram of the support frame.

[0017] In the diagram, 1-box body, 2-support frame, 201-support slide bar, 202-material inlet sealing plate, 203-installation rod, 3-screen box, 301-discharge port, 4-electric telescopic rod, 5-lifting block, 6-installation frame, 7-guide screen plate, 8-first discharge port, 9-first sand and gravel recovery box, 10-threaded adjustment rod, 11-pressure plate, 12-evacuation rod, 13-positioning rod, 14-guide hole, 15-screen plate, 16-second discharge port, 17-second sand and gravel recovery box, 18-water filter box, 19-overflow pipe, 20-sewage pipe, 21-spray pipe, 22-spray nozzle, 23-inlet pipe, 24-support spring. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0020] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] refer to Figure 1-3As shown, one embodiment of this utility model is as follows:

[0025] A sand and gravel recycling device includes a housing 1, a support frame 2 with a central hollow section inside the housing 1, a slidable screening box 3 on the support frame 2, an electric telescopic rod 4 on the side wall of the housing 1, the movable end of the electric telescopic rod 4 being hinged to the front end of the screening box 3, a lifting block 5 on the support frame 2 located behind the screening box 3, a discharge port 301 on the bottom front wall of the screening box 3, a mounting frame 6 on the upper end of the housing 1, a sand and gravel dispersion mechanism adapted to the screening box 3 on the mounting frame 6, a water spraying mechanism adapted to the screening box 3 on the housing 1, a guide screen plate 7 adapted to the discharge port 301 hinged to the lower end of the support frame 2, a first discharge port 8 adapted to the guide screen plate 7 on the side wall of the housing 1, and a first sand and gravel recycling box 9 adapted to the first discharge port 8 on the outer wall of the housing 1.

[0026] Specifically, the mounting frame 6 has a threaded adjusting rod 10 on its horizontal plate, and an operating handwheel at the upper end of the threaded adjusting rod 10. The sand and gravel evacuation mechanism includes a pressure plate 11, the size of which is smaller than that of the sieve box 3. The pressure plate 11 is rotatably connected to the lower end of the threaded adjusting rod 10. The lower end of the pressure plate 11 is provided with several evacuation rods 12. Several drainage holes are provided on the pressure plate 11. The pressure plate 11 is provided with positioning rods 13. The horizontal plate is provided with guide holes 14 that are adapted to the positioning rods 13.

[0027] The upper part of the box is designed with an opening to facilitate the addition of tailings into the screening box 3. The threaded adjusting rod 10 drives the pressure plate 11 upward before adding the tailings. After the tailings are added, the pressure plate 11 is moved downward and stops when it contacts the tailings. The unblocking rod is then inserted into the concrete tailings. The water spraying mechanism sprays water into the screening box 3, while the electric telescopic rod 4 drives the screening box 3 to move back and forth on the support frame. This, combined with the unblocking rod 12, accelerates the separation of sand and gravel from cement, river sand, and other materials. During the rinsing process, the operation can be performed intermittently, allowing the pressure plate 11 to gradually move downward to improve separation efficiency and reduce water consumption. After the sand and gravel are cleaned, the pressure plate 11 is moved upward, and then the electric telescopic rod 4 extends further, causing the rear end of the screening box to climb onto the lifting block 5 and positioning the discharge port 301 in the hollow area of ​​the support frame 2. The sand and gravel then enter the first sand and gravel recovery box 9 through the guide screen plate 7.

[0028] To prevent the evacuation rod 12 from contacting the bottom wall of the screen box 3, a safety mark can be made on the threaded adjustment rod 10 in advance. Specifically, a red safety line can be drawn on the threaded adjustment rod. The stop signal is used when the red safety line is screwed into the threaded part of the horizontal plate and blocked. At this time, there is still a gap between the evacuation rod 12 and the bottom wall of the screen box 3 to ensure safety redundancy.

[0029] During the feeding process, the feeding port 301 can be prevented from moving behind the guide screen plate 7 by controlling the stroke of the electric telescopic rod 4 and limiting the size of the lifting block.

[0030] Furthermore, the screen hole size of the guide screen plate 7 is consistent with the screen hole size of the screen box 3. Since the guide screen plate 7 is partially located in the hollow area of ​​the support frame, its screen hole size is consistent with the screen hole size of the screen box 3, thereby ensuring that smaller particles of material can pass through the guide screen plate.

[0031] Inside the box 1, a screen plate 15 is inclined below the first discharge port 8. The screen hole size of the screen plate 15 is smaller than that of the screen box 3. The side wall of the box 1 is provided with a second discharge port 16 adapted to the screen plate 15. The outer wall of the box 1 is provided with a second sand and gravel recycling box 17 adapted to the second discharge port 16.

[0032] like Figure 1 As shown, the highest point of the screen plate 15 is located below the first discharge port 8, meaning the lowest point of the screen plate 15 is located below the lifting block 5. No fine particles fall directly into the area below the lifting block 5, effectively reducing the fine particle content in the second sand and gravel recovery box. The screen plate 15 enables secondary sand and gravel recovery and can separate sand and gravel of different particle sizes, making it more practical. Furthermore, by installing the screen plate 15, the screen aperture size of the screen box 3 can be appropriately increased, thereby improving the material falling efficiency during separation within the screen box 3 and enhancing the recovery efficiency.

[0033] The outer wall of the box body 1 is also provided with a water filter box 18, and the side wall of the box body 1 is provided with an overflow pipe 19 that connects to the water filter box 18. The overflow pipe 19 is located below the lowest end of the screen plate 15.

[0034] The filter tank, in conjunction with the overflow pipe 19, can recycle the relatively clear cleaning water from the upper layer. A drain pipe 20 is installed at the lowest end of the side wall of the tank 1, through which materials and wastewater falling into the bottom of the tank can be discharged. A valve is installed on the drain pipe 20.

[0035] The water spraying mechanism includes water spray pipes 21 disposed on both sides of the housing 1. The water spray pipes 21 are provided with a plurality of water spray nozzles 22 extending into the housing 1. The water spray nozzles 22 are located above the screening box 3. The water spray pipes 21 are connected to a water inlet pipe 23, and a control valve is provided on the water inlet pipe 23.

[0036] Water spray pipes 21 are installed on both sides in conjunction with water spray nozzles 22 to effectively wash the concrete tailings in the screening box and improve the separation and recycling effect.

[0037] The support frame 2 includes a support slide bar 201 arranged opposite to each other. The front end of the support slide bar 201 is connected through a material outlet sealing plate 202. The rear end of the support slide bar 201 is provided with an installation rod 203 at intervals. The lifting block 5 is fixedly connected to the installation rod 203.

[0038] During the washing and screening process, the discharge port 301 is located on the discharge port sealing plate 202, thereby preventing unseparated concrete blocks from being discharged. The screening box 3 is slidably placed on the support slide rod 201, and correspondingly, the guide screen plate 7 is hinged to the lower end of the support slide rod 201, with a discharge gap between its hinge point and the discharge port sealing plate.

[0039] The first discharge port 8 is equipped with a support spring 24 adapted to the guide screen plate 7.

[0040] The support spring 24 can cause the guide screen plate 7 to vibrate slightly during the feeding process, thereby ensuring that small particles can pass smoothly through the guide screen plate 7.

[0041] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A sand and gravel recycling device, characterized in that: The device includes a housing with a centrally hollowed-out support frame inside. A screening box is slidably mounted on the support frame. An electric telescopic rod is mounted on the side wall of the housing, with its movable end hinged to the front end of the screening box. A lifting block is mounted on the support frame behind the screening box. A discharge port is located on the bottom front wall of the screening box. A mounting frame is mounted on the upper end of the housing, with a sand and gravel dispersing mechanism adapted to the screening box. A water spraying mechanism adapted to the screening box is mounted on the housing. A guide screen plate adapted to the discharge port is hinged to the lower end of the support frame. A first discharge port adapted to the guide screen plate is located on the side wall of the housing. A first sand and gravel recycling box adapted to the first discharge port is located on the outer wall of the housing.

2. The sand and gravel recycling device according to claim 1, characterized in that: The screen hole size of the guide screen plate is the same as that of the screen box. The screen plate is inclinedly provided in the box body below the first discharge port. The screen hole size of the screen plate is smaller than that of the screen box. The side wall of the box body is provided with a second discharge port adapted to the screen plate. The outer wall of the box body is provided with a second sand and gravel recycling box adapted to the second discharge port.

3. The sand and gravel recycling device according to claim 2, characterized in that: The outer wall of the box is also provided with a water filter box, and the side wall of the box is provided with an overflow pipe that connects to the water filter box. The overflow pipe is located below the lowest end of the screen plate.

4. The sand and gravel recycling device according to claim 1, characterized in that: The mounting frame has a threaded adjusting rod on its horizontal plate, and an operating handwheel at the upper end of the threaded adjusting rod. The sand and gravel evacuation mechanism includes a pressure plate, the size of which is smaller than the size of the sieve box. The pressure plate is rotatably connected to the lower end of the threaded adjusting rod. The lower end of the pressure plate has several evacuation rods. Several drainage holes are opened on the pressure plate. The pressure plate has a positioning rod, and the horizontal plate has a guide hole adapted to the positioning rod.

5. The sand and gravel recycling device according to claim 1, characterized in that: The water spraying mechanism includes water spray pipes located on both sides of the box. Each water spray pipe has several water spray nozzles extending into the box. The water spray nozzles are located above the sieve box. Each water spray pipe is connected to a water inlet pipe, which is equipped with a control valve.

6. The sand and gravel recycling device according to claim 1, characterized in that: The support frame includes support slide rods arranged opposite each other. The front end of the support slide rod is connected through a material outlet sealing plate, and the rear end of the support slide rod is provided with mounting rods at intervals. The lifting block is fixedly connected to the mounting rods.

7. The sand and gravel recycling device according to claim 1, characterized in that: The first discharge port is equipped with a support spring adapted to the guide screen plate.

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