Sand-water separation device for sewage treatment

Abstract

The utility model relates to the technical field of sewage treatment, in particular to a sand-water separation device for sewage treatment, which comprises a rack, and a sand-water separation cage and a rotary driving component connected with the sand-water separation cage are erected on the rack; a water inlet groove is formed along an inlet of the sand-water separation cage, and a slag discharge groove is formed along a slag discharge opening of the sand-water separation cage; a water outlet groove is formed below the sand-water separation cage; and a water storage tank is arranged at the discharging end of the water outlet groove. And the sewage treatment efficiency is remarkably improved by combining the dual effects of centrifugal force and gravity. In the rotating process of the sand-water separation cage, solid particles (such as gravel) in sewage can be effectively separated from clear water, the solid particles are smoothly discharged, the clear sewage is collected in the water storage tank, and high-quality inlet water is provided for subsequent treatment. The design not only reduces the risk of equipment blockage, but also ensures the continuity and stability of the sewage treatment process.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a sewage treatment sand and water separation device. Background Art

[0002] In rural sewage treatment systems, the pretreatment of sand and stone impurities is an important step to ensure the smooth operation of subsequent sewage treatment processes. Since rural sewage often contains a large amount of solid impurities, including large particles of sand, soil, and other suspended matters, if these impurities are not pretreated, they will directly affect the normal operation of subsequent treatment equipment and even cause blockage or damage. Therefore, an efficient and reliable sand and water separation device is crucial for rural sewage treatment.

[0003] Traditional pretreatment for rural sewage treatment usually includes simple grid filtration to remove larger solid impurities, but this method has poor removal effect on fine particles and is prone to blockage. To further improve the treatment effect, more advanced sand and water separation technologies need to be introduced. Summary of the Utility Model

[0004] In view of the technical problems existing in the prior art, the utility model provides a sewage treatment sand and water separation device to solve the problem that it is difficult to effectively remove larger solid impurities in the sewage treatment process.

[0005] The technical solution for the utility model to solve the above technical problems is as follows: A sewage treatment sand and water separation device includes a frame, on which a sand and water separation cage is installed, and a rotary drive assembly connected to the sand and water separation cage; a water inlet trough is arranged along the inlet of the sand and water separation cage, and a slag discharge trough is arranged along the slag discharge port of the sand and water separation cage; a water outlet trough is arranged below the sand and water separation cage, and a water storage tank is arranged at the discharging end of the water outlet trough.

[0006] On the basis of the above technical solution, the utility model can be further improved.

[0007] Further, the sand and water separation cage includes a driving main shaft, and a plurality of equally spaced horizontal ribs are arranged around the driving main shaft; a plurality of brackets for radially supporting the horizontal ribs are also arranged on the driving main shaft.

[0008] Further, the rotary drive assembly includes:

[0009] A pulley one connected to the input end of the driving main shaft;

[0010] An electric motor arranged adjacent to the sand and water separation cage;

[0011] A pulley two installed on the output end of the electric motor;

[0012] A belt for connecting the pulley one and the pulley two.

[0013] Furthermore, it further includes a clear water tank disposed below the sand-water separation cage and a cleaning pipe disposed above the sand-water separation cage; a pumping pipeline is provided between the clear water tank and the cleaning pipe; several nozzles facing the sand-water separation cage are provided below the cleaning pipe.

[0014] Furthermore, the sand-water separation cage is inclined downward from the inlet to the slag discharge port.

[0015] Furthermore, an upper layer clear liquid discharge pipe and a lower layer sediment discharge pipe are communicated with the water storage tank.

[0016] Moreover, the sewage treatment sand-water separation device provided by the present utility model has at least the following beneficial effects compared with the prior art:

[0017] By designing a rotary sand-water separation cage and combining the dual effects of centrifugal force and gravity, the present utility model significantly improves the efficiency of sewage treatment. During the rotation of the sand-water separation cage, solid particles (such as sand and gravel) in the sewage can be effectively separated from the clear water. The solid particles are smoothly discharged, while the clear sewage is collected in the water storage tank, providing high-quality influent for subsequent treatment. This design not only reduces the risk of equipment blockage but also ensures the continuity and stability of the sewage treatment process.

[0018] The present utility model is also equipped with a cleaning system and a stratified discharge function, further improving the maintainability and flexibility of the equipment. The cleaning system can automatically clean the sand-water separation cage when needed, effectively removing impurities and dirt attached to the cage body and transverse ribs, and extending the service life of the equipment. The stratified discharge design of the water storage tank allows for further separation of the collected clear water. The upper layer clear liquid can be directly used for subsequent processes or discharged, while the lower layer sediment is convenient for centralized treatment or disposal, improving the resource utilization efficiency and environmental protection performance. Description of the Drawings

[0019] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 is a schematic diagram of the overall structure of the present utility model from another perspective;

[0021] Figure 3 is a schematic diagram of the partial structure of the sand-water separation cage of the present utility model.

[0022] In the drawings, the list of components represented by each reference numeral is as follows:

[0023] 1. Frame; 2. Sand-water separation cage; 2.1 Driving main shaft; 2.2 Cross ribs; 2.3 Support; 3. Rotating drive assembly; 3.1 Pulley 1; 3.2 Motor; 3.3 Pulley 2; 3.4 Belt; 4. Water inlet trough; 5. Slag discharge trough; 6. Water outlet trough; 7. Water storage tank; 7.1 Upper clear liquid discharge pipe; 7.2 Lower sediment drain pipe; 8. Clean water tank; 9. Cleaning pipe; 10. Pumping pipeline; 11. Sprinkler head. Detailed implementation mode

[0024] The principles and features of the present utility model will be described below in conjunction with the accompanying drawings. The examples given are only for explaining the present utility model and are not intended to limit the scope of the present utility model.

[0025] It should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection" and "coupling" in the terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrally formed structure. For those of ordinary skill in the art, the specific meanings of such terms in this patent can be understood according to specific circumstances.

[0026] As Figure 1 , Figure 2 and Figure 3 shown, a sewage treatment sand-water separation device of the present practical design is characterized in that it includes a frame 1, on which a sand-water separation cage 2 is installed, and a rotating drive assembly 3 connected to the sand-water separation cage 2; a water inlet trough 4 is arranged along the inlet of the sand-water separation cage 2, and a slag discharge trough 5 is arranged along the slag discharge port of the sand-water separation cage 2; a water outlet trough 6 is arranged below the sand-water separation cage 2, and a water storage tank 7 is arranged at the discharging end of the water outlet trough 6.

[0027] As an implementation mode, the sand-water separation cage 2 includes a driving main shaft 2.1, and a plurality of equally spaced cross ribs 2.2 are arranged around the outside of the driving main shaft 2.1; a plurality of supports 2.3 for radially supporting the cross ribs 2.2 are also arranged on the driving main shaft 2.1. The cross ribs 2.2 are arranged around the outside of the driving main shaft 2.1 to form a cage-like structure with a plurality of screening gaps, which allow water flow through but can intercept larger solid particles such as sand and gravel. In order to enhance the structural stability of the cross ribs 2.2, a plurality of supports 2.3 for radially supporting the cross ribs 2.2 are arranged on the driving main shaft 2.1 to ensure that the cross ribs will not deform or fall off during rotation.

[0028] As an implementation mode, the rotating drive assembly 3 includes:

[0029] A pulley 1 3.1 connected to the input end of the driving main shaft 2.1;

[0030] A motor 3.2 arranged adjacent to the sand-water separation cage 2;

[0031] The pulley two 3.3 installed at the output end of the motor 3.2;

[0032] The belt 3.4 used to connect the pulley one 3.1 and the pulley two 3.3. When the motor 3.2 starts, power is transmitted to the pulley one 3.1 through the belt 3.4, thereby driving the driving main shaft 2.1 and the entire sand-water separation cage 2 to rotate.

[0033] During the rotation, the sewage enters the sand-water separation cage 2 from the water inlet tank 4. Under the action of centrifugal force, the solid particles in the sewage are thrown towards the inner wall of the cage body and move downward along the transverse ribs 2.2, and finally are discharged through the slag discharge port. The relatively clear sewage flows out through the gaps between the transverse ribs, enters the water outlet tank 6 and is finally collected in the water storage tank 7.

[0034] As an implementation manner, it further includes a clear water tank 8 arranged below the sand-water separation cage 2, and a cleaning pipe 9 arranged above the sand-water separation cage 2; a pumping pipeline 10 is arranged between the clear water tank 8 and the cleaning pipe 9; a plurality of nozzles 11 facing the sand-water separation cage 2 are arranged below the cleaning pipe 9. When the pumping pipeline 10 is started, the clear water in the clear water tank 8 is pumped to the cleaning pipe 9 and sprayed onto the sand-water separation cage 2 through the nozzles 11 to wash the cage body and the transverse ribs, removing the attached impurities and dirt.

[0035] Furthermore, the sand-water separation cage 2 is arranged to incline downward from the inlet to the slag discharge port. This helps the solid particles in the sewage move more smoothly downward along the cage body under the combined action of centrifugal force and gravity, improves the separation efficiency, and reduces the risk of blockage.

[0036] As an implementation manner, an upper clear liquid discharge pipe 7.1 and a lower sediment drain pipe 7.2 are communicated with the water storage tank 7.

[0037] The upper clear liquid discharge pipe 7.1 is used to discharge the relatively clear upper water body in the water storage tank 7, and this part of the water body can be directly used for subsequent treatment processes or discharged.

[0038] The lower sediment drain pipe 7.2 is used to drain the sediment at the bottom of the water storage tank 7. These sediments may contain fine solid particles or suspended substances and need further treatment or disposal.

[0039] The working principle of the present utility model is as follows:

[0040] The device stably supports the entire system through the frame 1. The sewage first enters the sand-water separation cage 2 through the water inlet tank 4, which is a key separation component. The sand-water separation cage 2 rotates under the drive of the rotation drive assembly 3. During the rotation, the solid particles in the sewage, mainly sand and gravel, are thrown towards the inner wall of the cage body under the action of centrifugal force, move downward along the inner wall, gradually accumulate and are discharged along the slag discharge port, and finally are collected and processed through the slag discharge tank 5.

[0041] Meanwhile, the relatively clear sewage after being treated by the sand-water separation cage 2 flows downward into the lower water outlet tank 6 by gravity. The water outlet tank 6 is responsible for collecting and guiding this clear water to the water storage tank 7. The water storage tank 7, as a container for the collected and treated clear water, provides clean influent water for subsequent treatment processes.

[0042] During the whole process, the rotational movement of the sand-water separation cage 2 not only promotes the separation of solid impurities such as sand and gravel, but also, through continuous agitation and scouring effects, helps prevent the accumulation of solid particles inside the cage, maintaining the smooth and efficient operation of the equipment.

[0043] It should be noted that in this text, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device. Unless otherwise clearly stipulated and defined, the terms "install", "connect", "couple" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0044] Although the preferred embodiments of the present utility model have been described, those skilled in the art can make additional changes and modifications once they know the basic inventive concept. Therefore, the appended claims are intended to be construed as including the preferred embodiments and all changes and modifications falling within the scope of the present utility model.

[0045] Obviously, those skilled in the art can make various changes and modifications to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model also intends to include these modifications and variations.

Claims

1. A sewage treatment sand-water separation device, characterized in that, It includes a frame (1) on which a sand-water separation cage (2) is mounted, and a rotary drive assembly (3) connected to the sand-water separation cage (2); a water inlet trough (4) is arranged along the inlet of the sand-water separation cage (2), and a slag discharge trough (5) is arranged along the slag discharge port of the sand-water separation cage (2); a water outlet trough (6) is arranged below the sand-water separation cage (2), and a water storage tank (7) is arranged at the discharging end of the water outlet trough (6).

2. The sewage treatment sand-water separation device according to claim 1, characterized in that, The sand-water separation cage (2) includes a driving main shaft (2.1), and a plurality of equally spaced transverse ribs (2.2) are arranged around the outside of the driving main shaft (2.1); a plurality of brackets (2.3) for radially supporting the transverse ribs (2.2) are further arranged on the driving main shaft (2.1).

3. The sewage treatment sand-water separation device according to claim 2, characterized in that, The rotary drive assembly (3) includes: A first pulley (3.1) connected to the input end of the driving main shaft (2.1); A motor (3.2) arranged adjacent to the sand-water separation cage (2); A second pulley (3.3) installed at the output end of the motor (3.2); A belt (3.4) for connecting the first pulley (3.1) and the second pulley (3.3).

4. The sewage treatment sand-water separation device according to claim 1, wherein, It further includes a clean water tank (8) arranged below the sand-water separation cage (2), and a cleaning pipe (9) arranged above the sand-water separation cage (2); a pumping pipeline (10) is arranged between the clean water tank (8) and the cleaning pipe (9); a plurality of nozzles (11) facing the sand-water separation cage (2) are arranged below the cleaning pipe (9).

5. The sewage treatment sand-water separation device according to claim 1, wherein, The sand-water separation cage (2) is arranged to incline downward from the inlet to the slag discharge port.

6. The sewage treatment sand-water separation device according to claim 1, wherein An upper layer clear liquid discharge pipe (7.1) and a lower layer sediment emptying pipe (7.2) are communicated with the water storage tank (7).

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