Sewage precipitation treatment system

Abstract

The utility model discloses a sewage sedimentation treatment system, which relates to the technical field of sewage sedimentation and comprises an inclined tube sedimentation device and a sludge treatment device, the inclined tube sedimentation device comprises a sewage pipe, a sedimentation tank, a sludge pipe and a supernatant outlet pipe, the outlet end of the sewage pipe is arranged at the top of the sedimentation tank, and the sludge pipe is arranged at the bottom of the sedimentation tank. The inlet end of the sludge pipe is arranged at the bottom of the sedimentation tank; the inlet end of the supernate outlet pipe is arranged at the top of the sedimentation tank; the sludge treatment device comprises a stacked screw machine, and the outlet end of the sludge pipe is connected with the stacked screw machine; when the sludge dewatering device is used, after sewage is settled through the settling pond, flocculent sediments at the bottom of the settling pond are discharged into the stacked screw machine through the sludge pipe, sludge is pushed through rotation of the spiral shaft of the stacked screw machine, and the sludge is dewatered under the extrusion action generated by relative movement between the movable ring and the fixed ring; and the supernatant at the top of the sedimentation tank is discharged into a subsequent process link through the supernatant outlet pipe, so that the sedimentation efficiency and the sedimentation effect of the sewage are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage precipitation, in particular to a sewage precipitation treatment system. Background Art

[0002] Conveyor belts, also known as transport belts, are composite products made of rubber, fiber, metal, or plastic and fabric that carry and transport materials. They are widely used in industries such as cement, coking, metallurgy, chemical engineering, and steel where conveying distances are short and volumes are low.

[0003] During the conveying process, the conveyor belt will have residues left by the transported objects on its surface. The residues will contaminate the surface of the conveyor belt, and the accumulated residues will cause wear on the surface of the conveyor belt, accelerating the damage of the conveyor belt. Therefore, a cleaning device is required to clean the conveyor belt.

[0004] The self-cleaning process of the conveyor belt also continuously produces a large amount of cleaning wastewater. The wastewater cannot be directly discharged and recycled. The wastewater contains a large amount of coal slime, mud and other impurities, which cause serious pollution to the environment. The existing technology mainly flows the wastewater into the sewage pool and then carries out natural sedimentation treatment. This treatment method not only has low sewage treatment efficiency, but also poor treatment effect.

[0005] In view of this, a sewage sedimentation treatment system is urgently needed. Utility Model Content

[0006] In view of the problems existing in the prior art, the present invention solves the problem with the following technical structure.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A sewage sedimentation treatment system comprises: an inclined tube sedimentation device and a sludge treatment device, wherein the inclined tube sedimentation device comprises a sewage pipe, a sedimentation tank, a sludge pipe and a supernatant outlet pipe, the outlet end of the sewage pipe is arranged at the top of the sedimentation tank, the inlet end of the sludge pipe is arranged at the bottom of the sedimentation tank, and the inlet end of the supernatant outlet pipe is arranged at the top of the sedimentation tank; the sludge treatment device comprises a snail stacker, and the outlet end of the sludge pipe is connected to the snail stacker.

[0009] It is further characterized in that

[0010] The sedimentation tank includes two adjacent first sedimentation tanks and a second sedimentation tank. A first guide pipe is provided on the side of the second sedimentation tank close to the first sedimentation tank. The top of the first guide pipe is provided at the top of the inner cavity of the first sedimentation tank, and the bottom of the first guide pipe is provided at the bottom of the inner cavity of the second sedimentation tank. The inlet end of the supernatant outlet pipe is provided at the top of the second sedimentation tank, and the outlet end of the sewage pipe is provided at the top of the first sedimentation tank.

[0011] A second guide pipe is provided on the side of the first sedimentation tank away from the second sedimentation tank, the top of the second guide pipe is connected to the top of the first sedimentation tank, the bottom of the second guide pipe is provided at the bottom of the inner cavity of the first sedimentation tank, the outlet end of the sewage pipe is connected to the top of the second guide pipe, and the top of the second guide pipe is higher than the top of the first guide pipe.

[0012] The sludge treatment device further comprises a separation water collection tank, which is used to collect sewage separated by the snail press.

[0013] The sludge treatment device further comprises a separation water return pipe, one end of which is connected to the separation water collection box, and the other end of which is connected to the top of the second guide pipe.

[0014] The separated water return pipe is provided with a separated water return pump.

[0015] A sedimentation transfer pipe is provided at the bottom of the second sedimentation tank, and an outlet end of the sedimentation transfer pipe is connected to the top of the second guide pipe.

[0016] The sediment transfer pipe is provided with a circulation pump.

[0017] The second sedimentation tank is provided with an outlet cofferdam plate at the inlet end of the supernatant outlet pipe, and the top of the outlet cofferdam plate is lower than the top of the first guide pipe.

[0018] The first sedimentation tank and the second sedimentation tank are both provided with an inclined tube structure.

[0019] The above structure of the utility model can achieve the following beneficial effects:

[0020] During use, the sewage is discharged into the sedimentation tank of the inclined tube sedimentation device through the sewage pipe. After sedimentation in the sedimentation tank, the flocculent sediment at the bottom of the sedimentation tank is discharged into the snail stacker through the sludge pipe. The rotation of the spiral shaft of the snail stacker pushes the sludge forward, and the extrusion effect generated by the relative movement between the moving ring and the fixed ring is used to achieve sludge dehydration. The supernatant at the top of the sedimentation tank is discharged to the subsequent process links through the supernatant outlet pipe, thereby improving the sedimentation efficiency and sedimentation effect of the sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1Schematic diagram of the structure of this embodiment;

[0022] Figure 2 Schematic diagram of the structure of the sedimentation tank in this embodiment.

[0023] In the figure: 1. Sewage pipe; 2. Sludge pipe; 3. Supernatant outlet pipe; 4. Snail stacker; 5. First sedimentation tank; 6. Second sedimentation tank; 7. First diversion pipe; 8. Second diversion pipe; 9. Separation water collection box; 10. Separation water return pipe; 11. Separation water return pump; 12. Sedimentation transfer pipe; 13. Circulation pump; 14. Outlet cofferdam plate; 15. Inclined pipe structure. DETAILED DESCRIPTION

[0024] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0025] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, apparatus, product or equipment that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or are inherent to these processes, methods, products or equipment.

[0026] The following is combined with Figure 1-2 This application is described in further detail.

[0027] refer to Figure 1-2The sewage sedimentation treatment system shown in the figure includes: an inclined tube sedimentation device and a sludge treatment device. The inclined tube sedimentation device includes a sewage pipe 1, a sedimentation tank, a sludge pipe 2 and a supernatant outlet pipe 3. The outlet end of the sewage pipe 1 is arranged at the top of the sedimentation tank, the inlet end of the sludge pipe 2 is arranged at the bottom of the sedimentation tank, and the inlet end of the supernatant outlet pipe 3 is arranged at the top of the sedimentation tank. The sludge treatment device includes a screw stack 4, and the outlet end of the sludge pipe 2 is connected to the screw stack 4. In this way, when in use, sewage is discharged into the sedimentation tank of the inclined tube sedimentation device through the sewage pipe 1. After sedimentation in the sedimentation tank, flocculent sediment at the bottom of the sedimentation tank is discharged into the screw stack 4 through the sludge pipe 2. The rotation of the spiral shaft of the screw stack 4 pushes the sludge forward. The relative motion between the movable ring and the fixed ring generates a squeezing effect to achieve sludge dehydration. The supernatant at the top of the sedimentation tank is discharged through the supernatant outlet pipe 3 to the subsequent process link. In this way, the sedimentation efficiency and sedimentation effect of the sewage are improved.

[0028] like Figure 1 and Figure 2 As shown, in order to further improve the treatment effect of sewage, the sedimentation tank includes two adjacent first sedimentation tanks 5 and second sedimentation tanks 6. A first guide pipe 7 is provided on the side of the second sedimentation tank 6 close to the first sedimentation tank 5. The top of the first guide pipe 7 is provided at the top of the inner cavity of the first sedimentation tank 5, and the bottom of the first guide pipe 7 is provided at the bottom of the inner cavity of the second sedimentation tank 6. The inlet end of the supernatant outlet pipe 3 is provided at the top of the second sedimentation tank 6, and the outlet end of the sewage pipe 1 is provided at the top of the first sedimentation tank 5. The sewage is directly discharged into the first sedimentation tank 5 through the sewage pipe 1, and then the supernatant after precipitation in the first sedimentation tank 5 passes through The top of the first guide pipe 7 flows to the bottom of the second sedimentation tank 6 for secondary sedimentation. Therefore, the supernatant flowing out from the top of the second sedimentation tank 6 has been precipitated twice, making the supernatant discharged from the supernatant outlet pipe 3 clearer and cleaner. In order to improve the sedimentation effect, an inclined tube structure 15 is provided in the first sedimentation tank 5 and the second sedimentation tank 6. A plurality of inclined tubes are provided in the first sedimentation tank 5 and the second sedimentation tank 6. The fluid will form a swirling flow in the process of passing through the inclined tube filler, so that a large contact area is generated between the solid particles and the liquid, thereby accelerating the precipitation of the solid particles more quickly and promoting the separation of mud and water.

[0029] like Figure 1 and Figure 2As shown, in order to ensure that the supernatant at the top of the first sedimentation tank 5 will not be contaminated by the discharged sewage, a second guide pipe 8 is provided on the side of the first sedimentation tank 5 away from the second sedimentation tank 6. The top of the second guide pipe 8 is connected to the top of the first sedimentation tank 5, and the bottom of the second guide pipe 8 is set at the bottom of the inner cavity of the first sedimentation tank 5. The outlet end of the sewage pipe 1 is connected to the top of the second guide pipe 8. The top of the second guide pipe 8 is higher than the top of the first guide pipe 7. The discharged sewage is directly discharged into the bottom of the first sedimentation tank 5 through the second guide pipe 8, reducing the pollution of the supernatant on the top. Similarly, the first guide pipe 7 also has the same function.

[0030] Further optimization is, Figure 1 As shown, a sedimentation transfer pipe 12 is provided at the bottom of the second sedimentation tank 6 (a circulation pump 13 is provided on the sedimentation transfer pipe 12), and the outlet end of the sedimentation transfer pipe 12 is connected to the top of the second guide pipe 8. The sediment in the second sedimentation tank 6 is discharged back into the first sedimentation tank 5 through the sedimentation transfer pipe 12 for sedimentation, and then discharged together through the sludge pipe 2.

[0031] Further optimization is, Figure 1 As shown, the sludge treatment device also includes a separation water collection box 9, which collects the sewage separated by the snail stacking machine 4, and transports the separated water to the first sedimentation tank 5 for sedimentation through a separation water return pipe 10 connected to the top of the second guide pipe 8 (a separation water return pump 11 is provided on the separation water return pipe 10), thereby improving the utilization rate of water resource circulation.

[0032] Further optimization is, Figure 2 As shown, in order to ensure that the supernatant flows into the supernatant outlet pipe 3, the second sedimentation tank 6 is provided with an outlet cofferdam plate 14 at the inlet end of the supernatant outlet pipe 3. The top of the outlet cofferdam plate 14 is lower than the top of the first guide pipe 7, ensuring that the uppermost layer of liquid flows into the supernatant outlet pipe 3.

[0033] In summary, when in use, the sewage is discharged into the sedimentation tank of the inclined tube sedimentation device through the sewage pipe 1. After sedimentation in the sedimentation tank, the flocculent sediment at the bottom of the sedimentation tank is discharged into the snail stacker 4 through the sludge pipe 2. The rotation of the spiral shaft of the snail stacker 4 pushes the sludge forward, and the extrusion effect generated by the relative movement between the moving ring and the fixed ring is used to achieve sludge dehydration, and the supernatant at the top of the sedimentation tank is discharged to the subsequent process links through the supernatant outlet pipe 3. In this way, the sedimentation efficiency and sedimentation effect of the sewage are improved.

[0034] The above are only preferred embodiments of the present application, and the present invention is not limited to the above embodiments. It is understood that other improvements and variations directly derived or imagined by those skilled in the art without departing from the spirit and concept of the present invention should be considered to be included in the scope of protection of the present invention.

Claims

1. A sewage sedimentation treatment system, characterized in that: include: An inclined tube sedimentation device and a sludge treatment device, wherein the inclined tube sedimentation device comprises a sewage pipe (1), a sedimentation tank, a sludge pipe (2), and a supernatant liquid outlet pipe (3), wherein the outlet end of the sewage pipe (1) is arranged at the top of the sedimentation tank, the inlet end of the sludge pipe (2) is arranged at the bottom of the sedimentation tank, and the inlet end of the supernatant liquid outlet pipe (3) is arranged at the top of the sedimentation tank; and the sludge treatment device comprises a snail stacking machine (4), and the outlet end of the sludge pipe (2) is connected to the snail stacking machine (4).

2. A sewage sedimentation treatment system according to claim 1, characterized in that: The sedimentation tank comprises a first sedimentation tank (5) and a second sedimentation tank (6) which are arranged adjacent to each other. A first flow guide pipe (7) is arranged on a side of the second sedimentation tank (6) close to the first sedimentation tank (5). The top of the first flow guide pipe (7) is arranged at the top of the inner cavity of the first sedimentation tank (5), and the bottom of the first flow guide pipe (7) is arranged at the bottom of the inner cavity of the second sedimentation tank (6). The inlet end of the supernatant outlet pipe (3) is arranged at the top of the second sedimentation tank (6), and the outlet end of the sewage pipe (1) is arranged at the top of the first sedimentation tank (5).

3. A sewage sedimentation treatment system according to claim 2, characterized in that: A second flow guide pipe (8) is provided on a side of the first sedimentation tank (5) away from the second sedimentation tank (6); the top of the second flow guide pipe (8) is communicated with the top of the first sedimentation tank (5); the bottom of the second flow guide pipe (8) is provided at the bottom of the inner cavity of the first sedimentation tank (5); the outlet end of the sewage pipe (1) is connected to the top of the second flow guide pipe (8); and the top of the second flow guide pipe (8) is higher than the top of the first flow guide pipe (7).

4. A sewage sedimentation treatment system according to claim 3, characterized in that: The sludge treatment device further comprises a separation water collection tank (9), and the separation water collection tank (9) is used to collect sewage separated by the snail stacking machine (4).

5. A sewage sedimentation treatment system according to claim 4, characterized in that: The sludge treatment device further comprises a separation water return pipe (10), one end of which is connected to the separation water collection tank (9), and the other end of which is connected to the top of the second guide pipe (8).

6. A sewage sedimentation treatment system according to claim 5, characterized in that: The separated water return pipe (10) is provided with a separated water return pump (11).

7. The sewage sedimentation treatment system according to claim 3, characterized in that: A sedimentation transfer pipe (12) is provided at the bottom of the second sedimentation tank (6), and the outlet end of the sedimentation transfer pipe (12) is connected to the top of the second flow guide pipe (8).

8. A sewage sedimentation treatment system according to claim 7, characterized in that: The sediment transfer pipe (12) is provided with a circulation pump (13).

9. The sewage sedimentation treatment system according to claim 2, characterized in that: The second sedimentation tank (6) is provided with a water outlet cofferdam plate (14) at the inlet end of the supernatant outlet pipe (3), and the top of the water outlet cofferdam plate (14) is lower than the top of the first guide pipe (7).

10. The sewage sedimentation treatment system according to claim 2, characterized in that: An inclined tube structure (15) is provided in both the first sedimentation tank (5) and the second sedimentation tank (6).

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