A building solid waste production mechanism sand washing device

Abstract

The utility model discloses a kind of building solid waste production mechanism sand washing sand device, it is related to sand washing technical field, including separation tank, its longitudinal section is conical;Water inlet, open in separation tank top side;Center conduit, located in separation tank, spiral flow guide vane, for several, evenly installed on the outer surface of center conduit, and spiral vane outer diameter gradually decreases along its height direction downward;Water outlet pipe, plug-in is installed in the other side of separation tank top, and is connected with center conduit;Lifting pipeline, obliquely installed in separation tank bottom, and is communicated with separation tank.The beneficial effects of the utility model are that sand washing sewage is extracted into separation tank through water inlet, encounters spiral flow guide vane on center conduit, water flow generates rotating force, under the action of centrifugal force and centripetal force, fine sand with large density is thrown in separation tank bottom, cooperate lifting pipeline, realize fine sand extraction recovery, and water with small density is filtered by conical filter tip, then discharged by water outlet pipe, and can be reused sand washing process.

Description

Technical Field

[0001] This utility model relates to the field of sand washing technology, specifically a sand washing device for producing manufactured sand from construction solid waste. Background Technology

[0002] Manufactured sand from construction solid waste refers to sand produced by processing solid waste such as waste concrete and bricks from construction debris through processes such as crushing, screening, and washing. This type of aggregate not only meets the material needs of the construction industry but also effectively reduces dependence on natural sand and gravel resources, achieving resource recycling.

[0003] The washing process of manufactured sand generates a large amount of wastewater, which contains a large amount of suspended solids such as mud, sand, and cement. It is characterized by large volume, high turbidity, and strong viscosity. Direct discharge will not only pollute the environment but also cause production to stop due to insufficient sedimentation tank capacity. Traditional off-site treatment methods are costly and cannot completely solve the problem. Utility Model Content

[0004] To address the above deficiencies, this utility model provides a sand washing device for producing manufactured sand from construction solid waste, thereby solving the problem of wastewater treatment during sand washing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A sand washing device for producing manufactured sand from construction solid waste, comprising: The separator has a conical longitudinal section. The water inlet is located on one side of the top of the separator tank; The central conduit is located inside the separation tank. There are several spiral guide vanes, which are evenly installed on the outer surface of the central guide tube, and the outer diameter of the spiral vanes gradually decreases downward along their height direction; The outlet pipe is inserted on the other side of the top of the separator tank and connected to the central conduit. The lifting pipe is installed at an angle at the bottom of the separator and is connected to the separator.

[0006] Furthermore, the lifting pipe is equipped with a squeezing and dehydration mechanism; including... The drive unit is installed on one side of the bottom of the lifting pipe; The lifting shaft is movably inserted into the lifting pipe, and the driving device drives the lifting shaft to rotate slowly; There are several spiral lifting blades installed on the outer surface of the lifting shaft, and the pitch of the spiral lifting blades gradually decreases. There are several seepage holes, evenly distributed on the outer surface of the lifting pipe; The outer casing is fixed to the outside of the lifting pipe and includes several seepage holes; The drain outlet is located at the bottom of the casing. During the lifting process, the fine sand is subjected to axial extrusion force, which achieves dehydration. The extrusion force forces the water to be discharged to the outer shell through the seepage holes, while the fine sand is trapped in the lifting pipe. The fine sand gradually dries at the discharge point at the top of the lifting pipe and is finally discharged by its own weight.

[0007] Furthermore, the drive device and the lifting shaft are connected by a transmission belt to achieve the transmission of the lifting shaft.

[0008] Furthermore, the diameter of the lifting pipe decreases upward along its height direction, further enhancing the extrusion pressure. An electric actuator is installed on the discharge shell, and a baffle is installed at the telescopic end of the electric actuator. The electric actuator uses an electric push rod, which, together with the baffle, can apply reverse resistance to the fine sand, thereby improving the extrusion and dewatering effect.

[0009] Furthermore, a conical filter nozzle is connected to the bottom of the central conduit, and several circular filter holes are evenly opened on the outer surface of the conical filter nozzle to facilitate the filtration of impurities in the sand washing wastewater.

[0010] Furthermore, a cleaning port corresponding to the conical filter nozzle is provided on one side of the separation tank to facilitate cleaning of the conical filter nozzle.

[0011] This utility model provides a sand washing device for producing manufactured sand from construction solid waste, which has the following beneficial effects: the sand washing wastewater is pumped into the separation tank through the inlet. When it encounters the spiral guide vanes on the central guide tube, the water flow generates a rotational force. Under the action of centrifugal force and centripetal force, the denser fine sand is thrown to the bottom of the separation tank. With the help of the lifting pipe, the fine sand is extracted and recovered. The less dense water is filtered through the conical filter nozzle and discharged through the outlet pipe, which can be reused in the sand washing process, reducing water consumption. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a sand washing device for producing manufactured sand from construction solid waste, as described in this utility model. Figure 2 This is a schematic diagram of the extrusion dehydration mechanism of this utility model; Figure 3 This is an external view of the lifting pipe described in this utility model; Figure 4 This is an external view of the construction solid waste production and sand washing device described in this utility model; In the diagram: 1. Separator; 2. Inlet; 3. Central guide tube; 4. Spiral guide vane; 5. Outlet pipe; 6. Lifting pipe; 7. Drive unit; 8. Lifting shaft; 9. Spiral lifting vane; 10. Drain hole; 11. Outer shell; 12. Drain outlet; 13. Drive belt; 14. Discharge shell; 15. Electric actuator; 16. Baffle plate; 17. Conical filter nozzle; 18. Circular filter hole; 19. Cleaning port. Detailed Implementation

[0013] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0014] Please see Figures 1 to 4 As shown in the figure, this application provides a sand washing device for producing manufactured sand from construction solid waste, including a separation tank 1 with a conical longitudinal section; an inlet 2 located on one side of the top of the separation tank 1; a central guide tube 3 located inside the separation tank 1; several spiral guide vanes 4 evenly installed on the outer surface of the central guide tube 3, with the outer diameter of the spiral vanes gradually decreasing downward along their height direction; an outlet pipe 5 inserted on the other side of the top of the separation tank 1 and connected to the central guide tube 3; and a lifting pipe 6 installed at an incline at the bottom of the separation tank 1 and connected to the separation tank 1.

[0015] In this embodiment, after the manufactured sand is washed with water, the resulting wastewater is pumped into the separation tank 1 through the inlet 2. The high-velocity water flow encounters the spiral guide vanes 4 on the central guide tube 3, generating a rotational force. Under the action of centrifugal force and centripetal force, the denser fine sand is thrown to the bottom of the separation tank 1. With the help of the lifting pipe 6, the fine sand can be extracted and recovered. The less dense water is filtered through the conical filter nozzle 18 and discharged through the central guide tube 3 and the outlet pipe 5, which can be reused in the sand washing process, reducing water consumption.

[0016] In some embodiments, the lifting pipe 6 is provided with a squeezing and dehydration mechanism, including a drive device 7 installed on one side of the bottom of the lifting pipe 6; a lifting shaft 8 movably inserted into the lifting pipe 6 via a fastening bearing, and the drive device 7 drives the lifting shaft 8 to rotate slowly; a plurality of spiral lifting blades 9 installed on the outer surface of the lifting shaft 8, and the pitch of the spiral lifting blades 9 gradually decreases; a plurality of seepage holes 10 evenly opened on the outer surface of the lifting pipe 6; a housing 11 fixed to the outside of the lifting pipe 6 and enclosing the plurality of seepage holes 10; and a drain outlet 12 opened at the bottom of the housing 11.

[0017] and in conjunction with the appendix Figure 2 and attached Figure 3As shown, the drive device 7 uses a drive motor. During operation, the lifting shaft 8 drives several spiral lifting blades 9 to rotate slowly, lifting the fine sand deposited at the bottom of the separation tank 1. During the lifting process, some of the water in the fine sand gradually flows back to the bottom of the separation tank 1 in the gap of the spiral groove. The pitch of the spiral lifting blades 9 gradually decreases. The fine sand receives axial extrusion force during the lifting process, achieving extrusion and dehydration. The extrusion force forces the water to be discharged through the seepage hole 10 to the outer shell 11. The user can drain the water in the outer shell 11 through the drain outlet 12. The fine sand is trapped in the lifting pipe 6 and gradually dries at the top of the lifting pipe 6. Finally, it is discharged by its own weight.

[0018] In some embodiments, the drive device 7 and the lifting shaft 8 are connected by a transmission belt 13 to realize the transmission of the lifting shaft 8.

[0019] In some embodiments, the diameter of the lifting pipe 6 decreases upward along its height direction, and a discharge shell 14 is installed at the top to further enhance the extrusion pressure. An electric actuator 15 is installed on the discharge shell 14, and a baffle plate 16 is installed at the telescopic end of the electric actuator 15. The electric actuator 15 adopts an electric push rod, which, together with the baffle plate 16, can apply reverse resistance to the fine sand, thereby improving the extrusion and dewatering effect.

[0020] In some embodiments, a conical filter nozzle 17 is connected to the bottom of the central conduit 3, and a plurality of circular filter holes 18 are uniformly opened on the outer surface of the conical filter nozzle 17 to facilitate the filtration of impurities in the sand washing wastewater.

[0021] In some embodiments, a cleaning port 19 corresponding to the conical filter nozzle 17 is provided on one side of the separator tank 1 to facilitate cleaning of the conical filter nozzle 17.

[0022] The above technical solution only embodies the preferred technical solution of this utility model. Any changes that may be made by those skilled in the art to certain parts of it embody the principle of this utility model and fall within the protection scope of this utility model.

Claims

1. A sand washing device for producing manufactured sand from construction solid waste, characterized in that; include Separation tank (1) has a conical longitudinal section; The water inlet (2) is located on one side of the top of the separator (1); The central conduit (3) is located inside the separator (1). There are several spiral guide vanes (4), which are evenly installed on the outer surface of the central guide tube (3), and the outer diameter of the spiral vanes gradually decreases downward along its height direction; The outlet pipe (5) is inserted on the other side of the top of the separator (1) and connected to the central conduit (3); The lifting pipe (6) is installed at an angle at the bottom of the separator (1) and is connected to the separator (1).

2. The sand washing device for producing manufactured sand from construction solid waste according to claim 1, characterized in that, The lifting pipe (6) is equipped with a squeezing and dehydration mechanism; include The drive unit (7) is installed on one side of the bottom of the lifting pipe (6); The lifting shaft (8) is movably inserted into the lifting pipe (6), and the driving device (7) drives the lifting shaft (8) to rotate slowly; There are several spiral lifting blades (9), which are installed on the outer surface of the lifting shaft (8), and the pitch of the spiral lifting blades (9) gradually decreases; There are several seepage holes (10), which are evenly distributed on the outer surface of the lifting pipe (6); The outer shell (11) is fixed to the outside of the lifting pipe (6) and has several seepage holes (10). Drain (12) is located at the bottom of the outer casing (11).

3. The sand washing device for producing manufactured sand from construction solid waste according to claim 2, characterized in that, The drive unit (7) and the lifting shaft (8) are connected by a transmission belt (13).

4. A sand washing device for producing manufactured sand from construction solid waste according to claim 2 or 3, characterized in that, The lifting pipe (6) has a smaller diameter as it rises along its height direction, and a discharge shell (14) is installed on the top. An electric actuator (15) is installed on the discharge shell (14), and a baffle plate (16) is installed on the telescopic end of the electric actuator (15).

5. A sand washing device for producing manufactured sand from construction solid waste according to claim 1, characterized in that, The bottom of the central conduit (3) is connected to a conical filter nozzle (17), and the outer surface of the conical filter nozzle (17) is evenly provided with several circular filter holes (18).

6. A sand washing device for producing manufactured sand from construction solid waste according to claim 5, characterized in that, The separator (1) has a cleaning port (19) on one side that corresponds to the conical filter (17).

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