Settling tank for separating sediments in building sewage treatment

Abstract

The utility model discloses a sediment separation settling tank for building sewage treatment, and belongs to the technical field of sewage treatment.The sediment separation settling tank comprises a settling tank shell, a discharging pipe is fixedly installed at the top of the settling tank shell, and a collecting pipe is fixedly installed in the settling tank shell; a first filtering layer, a second filtering layer and a third filtering layer are sequentially connected to the outer wall of the collecting pipe up and down, a first communicating hole is formed in the outer wall of the collecting pipe and located between the first filtering layer and the second filtering layer, and a second communicating hole is formed in the outer wall of the collecting pipe and located between the second filtering layer and the third filtering layer; one ends, far away from the collecting pipe, of the first filtering layer, the second filtering layer and the third filtering layer are fixedly mounted on the inner wall of the settling tank shell; after building sewage is filtered by the first filter layer, the second filter layer and the third filter layer for three times, the collection of impurities and the discharge of filtered water are accelerated, and the settling efficiency of the building sewage is improved.

Description

Technical Field

[0001] This application relates to the technical field of sewage treatment, and particularly to a sedimentation tank for separating sediments in building sewage treatment. Background Art

[0002] A large amount of building sewage is generated during the construction process. The building sewage contains a large amount of particulate impurities and cannot be directly discharged into rivers or surface water, which will cause river siltation, water pollution, etc.

[0003] In the patent document with the published publication number CN215841766U, there is provided a sedimentation tank for building sewage treatment with sediment separation, including: a sedimentation tank housing, the bottom of the sedimentation tank housing is a base, and the base is fixedly welded to the bottom of the tank body. At the same time, a liquid outlet is provided at the bottom of the tank body, a drain pipe is installed inside the liquid outlet, and a control valve and a drain pump are installed on the drain pipe. An overflow port is fixedly provided on the upper right side of the tank body, an overflow pipe is installed inside the overflow port, and a liquid guiding structure is installed on the surface of the inner side wall of the tank body; a stirrer, the output shaft of the reduction motor of the stirrer is fixedly provided with a stirring rod. For this sedimentation tank for building sewage treatment with sediment separation, the tooth rake slowly rotates in the sewage, so that the sedimentation particles in the sewage are collected at the center position of the bottom of the tank body, and then can be discharged through the liquid outlet, the drain pipe and the drain pump, improving the sedimentation effect of the sedimentation tank on the particulate impurities in the building sewage and the sedimentation effect on the building sewage.

[0004] In actual use of the above device, the tooth rake slowly rotates in the sewage, so that the sedimentation particles in the sewage are collected at the center position of the bottom of the tank body and then discharged. However, it still relies on static suspension of the liquid to achieve solid-liquid separation, resulting in low separation efficiency. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, this application provides a sedimentation tank for separating sediments in building sewage treatment, which overcomes the deficiencies of the prior art and aims to solve the problems in the prior art.

[0006] To achieve the above object, the present application provides the following technical solution: A sedimentation tank for separating sediment in building sewage treatment, including a sedimentation tank housing. A feeding pipe is fixedly installed at the top of the sedimentation tank housing. A collecting pipe is fixedly installed inside the sedimentation tank housing. A first filter layer, a second filter layer, and a third filter layer are sequentially connected up and down on the outer wall of the collecting pipe. A first communication hole is opened between the first filter layer and the second filter layer on the outer wall of the collecting pipe. A second communication hole is opened between the second filter layer and the third filter layer on the outer wall of the collecting pipe. And one end of the first filter layer, the second filter layer, and the third filter layer away from the collecting pipe is fixedly installed on the inner wall of the sedimentation tank housing. A second drain pipe is fixedly installed at the bottom of the side wall of the sedimentation tank housing. A first drain pipe is fixedly installed at the top of the side wall of the sedimentation tank housing. A power chamber is arranged inside the sedimentation tank housing. A sludge pump is fixedly installed at the position of the power chamber inside the sedimentation tank housing. A sludge suction pipe is fixedly installed at the suction end of the sludge pump. One end of the sludge suction pipe away from the sludge pump is fixedly installed at the bottom end of the collecting pipe. A sludge conveying pipe is fixedly installed at the output end of the sludge pump.

[0007] By adopting the above technical solution, building sewage is poured into the sedimentation tank housing from the feeding pipe. Part of the sewage will sequentially pass through the first filter layer, the second filter layer, and the third filter layer for filtration. The filtered clean water can be discharged through the second drain pipe. The sludge pump extracts the impurities collected in the collecting pipe through the sludge suction pipe and discharges them through the sludge conveying pipe. During filtration, the impurities filtered by the first filter layer fall into the collecting pipe through the top opening of the collecting pipe under the action of gravity. The impurities filtered by the second filter layer fall into the collecting pipe through the first communication hole under the action of gravity. The impurities filtered by the third filter layer fall into the collecting pipe through the second communication hole under the action of gravity. Static suspension separation is carried out. The clear water obtained after static settlement is discharged from the first drain pipe. After the building sewage is filtered three times by the first filter layer, the second filter layer, and the third filter layer, the collection of impurities and the discharge of filtered water are accelerated, and the sedimentation efficiency of building sewage is improved.

[0008] As a preferred technical solution of the present application, the first filter layer is a coarse layer filter layer, the second filter layer is a fine layer filter layer, and the third filter layer is an activated carbon filter layer.

[0009] By adopting the above technical solution, the coarse layer filter layer filters large impurities in the building sewage, the fine layer filter layer filters small impurities in the building sewage, and the activated carbon filter layer filters tiny impurities in the water. The three-layer classification filtration is beneficial to accelerating the screening of impurities in the water, accelerating the solid-liquid separation speed of building sewage, and improving the sedimentation efficiency of building sewage.

[0010] As a preferred technical solution of the present application, a motor frame is fixedly installed at the top end of the settling tank housing. A motor is fixedly installed inside the motor frame. The output end of the motor is fixedly installed with a rotating shaft. One end of the rotating shaft penetrates the top wall of the settling tank housing and is fixedly installed with a rotating roller. A stirring rake is fixedly installed at the bottom end of the rotating roller.

[0011] By adopting the above technical solution, the motor drives the rotating shaft to rotate, and the stirring rake slowly stirs the construction impurities collected and precipitated at the bottom of the collecting pipe under the drive of the rotating roller. When stirring, a flocculant is added into the settling tank housing to promote the particles to become larger, improve the sedimentation of the sewage, and is beneficial to promoting the sedimentation of the particles in the construction sewage.

[0012] As a preferred technical solution of the present application, a water distribution plate is fixedly installed on the outer wall of the rotating shaft, and the water distribution plate is located inside the settling tank housing.

[0013] By adopting the above technical solution, the water distribution plate guides the sewage discharged from the feeding pipe towards the inner wall direction of the settling tank housing, which is beneficial to fully filtering the sewage and improves the practicability during use.

[0014] As a preferred technical solution of the present application, waterproof shells are fixedly installed at the bottoms of the first filter layer, the second filter layer, and the third filter layer, and vibrators are fixedly installed inside the waterproof shells.

[0015] By adopting the above technical solution, the waterproof shells protect the vibrators from water. When the first filter layer, the second filter layer, and the third filter layer need to be cleaned, the vibrators are started. The vibrators vibrate to shake off the impurities, which is beneficial to the automatic cleaning of the first filter layer, the second filter layer, and the third filter layer, and reduces the labor intensity of manual cleaning.

[0016] As a preferred technical solution of the present application, valves are fixedly installed inside both the second drain pipe and the first drain pipe.

[0017] By adopting the above technical solution, the valves control the drainage of the second drain pipe and the first drain pipe, which improves the practicability during use.

[0018] The beneficial effects of the present application:

[0019] 1. By pouring construction sewage into the sedimentation tank housing from the feeding pipe, a part of the sewage will sequentially pass through the first filter layer, the second filter layer, and the third filter layer for filtration. The filtered clean water can be discharged through the second drain pipe. The sludge pump extracts the impurities collected in the collection pipe through the sludge suction pipe and discharges them through the sludge conveying pipe. During filtration, the impurities filtered by the first filter layer fall into the collection pipe through the top opening of the collection pipe under the action of gravity. The impurities filtered by the second filter layer fall into the collection pipe through the first communication hole under the action of gravity. The impurities filtered by the third filter layer fall into the collection pipe through the second communication hole under the action of gravity. Static suspension separation is carried out, and the clear water obtained after standing is discharged from the first drain pipe. By filtering the construction sewage three times through the first filter layer, the second filter layer, and the third filter layer, the collection of impurities and the discharge of filtered water are accelerated, and the sedimentation efficiency of the construction sewage is improved.

[0020] 2. The coarse filter layer filters large impurities in the construction sewage, the fine filter layer filters small impurities in the construction sewage, and the activated carbon filter layer filters tiny impurities in the water. The three-layer classification filtration is conducive to accelerating the screening of impurities in the water, accelerating the solid-liquid separation speed of the construction sewage, and improving the sedimentation efficiency of the construction sewage. Brief Description of the Drawings

[0021] Figure 1 It is a schematic diagram of the overall structure of this application;

[0022] Figure 2 is Figure 1 the enlarged structure schematic diagram at A in

[0023] Figure 3 is Figure 1 the enlarged structure schematic diagram at B in

[0024] In the figure: 1. Sedimentation tank housing; 2. Feeding pipe; 3. Collection pipe; 4. First drain pipe; 5. First filter layer; 6. Second filter layer; 7. Third filter layer; 8. Second drain pipe; 9. Power chamber; 10. Sludge pump; 11. Sludge suction pipe; 12. Sludge conveying pipe; 13. Motor frame; 14. Motor; 15. Rotating shaft; 16. Water distribution plate; 17. Rotating roller; 18. Stirring rake; 19. First communication hole; 20. Second communication hole; 21. Waterproof shell; 22. Vibrator; 23. Valve. Detailed Embodiment

[0025] Next, the technical solutions in the embodiments of this application will be clearly and completely described in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of this application.

[0026] Referring to Figures 1-3 , a sedimentation tank for separating precipitates in building sewage treatment, comprising a sedimentation tank housing 1, a feeding pipe 2 is fixedly installed at the top of the sedimentation tank housing 1, a collecting pipe 3 is fixedly installed inside the sedimentation tank housing 1, a first filter layer 5, a second filter layer 6, and a third filter layer 7 are sequentially connected up and down on the outer wall of the collecting pipe 3. A first communication hole 19 is formed between the first filter layer 5 and the second filter layer 6 on the outer wall of the collecting pipe 3, and a second communication hole 20 is formed between the second filter layer 6 and the third filter layer 7 on the outer wall of the collecting pipe 3. And the ends of the first filter layer 5, the second filter layer 6, and the third filter layer 7 away from the collecting pipe 3 are all fixedly installed on the inner wall of the sedimentation tank housing 1.

[0027] In addition, a second drain pipe 8 is fixedly installed at the bottom of the side wall of the sedimentation tank housing 1, a first drain pipe 4 is fixedly installed at the top of the side wall of the sedimentation tank housing 1, a power chamber 9 is arranged inside the sedimentation tank housing 1, a sludge pump 10 is fixedly installed at the position of the power chamber 9 inside the sedimentation tank housing 1, a sludge suction pipe 11 is fixedly installed at the suction end of the sludge pump 10, and the end of the sludge suction pipe 11 away from the sludge pump 10 is fixedly installed at the bottom end of the collecting pipe 3. The output end of the sludge pump 10 is fixedly installed with a sludge conveying pipe 12. A motor bracket 13 is fixedly installed at the top end of the sedimentation tank housing 1, a motor 14 is fixedly installed inside the motor bracket 13, the output end of the motor 14 is fixedly installed with a rotating shaft 15, one end of the rotating shaft 15 penetrates through the top wall of the sedimentation tank housing 1 and is fixedly installed with a rotating roller 17, and a stirring rake 18 is fixedly installed at the bottom end of the rotating roller 17.

[0028] By pouring construction sewage into the sedimentation tank housing 1 from the blanking pipe 2, a part of the sewage will pass through the first filter layer 5, the second filter layer 6, and the third filter layer 7 in sequence for filtration. The filtered clean water can be discharged through the second drain pipe 8. The sludge pump 10 extracts the impurities collected in the collection pipe 3 through the sludge suction pipe 11 and discharges them through the sludge discharge pipe 12. During filtration, the impurities filtered by the first filter layer 5 fall into the collection pipe 3 through the top opening of the collection pipe 3 under the action of gravity. The impurities filtered by the second filter layer 6 fall into the collection pipe 3 through the first communication hole 19 under the action of gravity. The impurities filtered by the third filter layer 7 fall into the collection pipe 3 through the second communication hole 20 under the action of gravity. Static suspension separation is carried out, and the clear water obtained after standing is discharged from the first drain pipe 4. By filtering the construction sewage three times through the first filter layer 5, the second filter layer 6, and the third filter layer 7, the collection of impurities and the discharge of filtered water are accelerated, and the sedimentation efficiency of the construction sewage is improved. The motor 14 drives the rotating shaft 15 to rotate, and the stirring rake 18 slowly stirs the construction impurities collected and precipitated at the bottom of the collection pipe 3 driven by the rotating roller 17. During stirring, a flocculant is added into the interior of the sedimentation tank housing 1 to promote the particles to become larger, improve the sedimentation of the sewage, and facilitate the sedimentation of the particles in the construction sewage.

[0029] Refer to Figure 1 , the first filter layer 5 is a coarse filter layer, the second filter layer 6 is a fine filter layer, and the third filter layer 7 is an activated carbon filter layer. The outer wall of the rotating shaft 15 is fixedly installed with a water distribution plate 16, and the water distribution plate 16 is located inside the sedimentation tank housing 1. Valves 23 are fixedly installed inside both the second drain pipe 8 and the first drain pipe 4; the large impurities in the construction sewage are filtered by the coarse filter layer, the small impurities in the construction sewage are filtered by the fine filter layer, and the tiny impurities in the water are filtered by the activated carbon filter layer. The three-layer classification filtration is beneficial to accelerating the screening of impurities in the water, accelerating the solid-liquid separation speed of the construction sewage, and improving the sedimentation efficiency of the construction sewage. The water distribution plate 16 guides the sewage discharged from the blanking pipe 2 towards the inner wall direction of the sedimentation tank housing 1, which is beneficial to fully filtering the sewage and improving the practicability during use. The valves 23 control the drainage of the second drain pipe 8 and the first drain pipe 4, improving the practicability during use.

[0030] Refer to Figure 1 , waterproof shells 21 are fixedly installed at the bottoms of the first filter layer 5, the second filter layer 6, and the third filter layer 7, and vibrators 22 are fixedly installed inside the waterproof shells 21; the waterproof shells 21 provide waterproof protection for the vibrators 22. When the first filter layer 5, the second filter layer 6, and the third filter layer 7 need to be cleaned, the vibrators 22 are started, and the vibrators 22 vibrate to shake off the impurities, which is beneficial to the automatic cleaning of the first filter layer 5, the second filter layer 6, and the third filter layer 7, reducing the labor intensity of manual cleaning.

[0031] Working principle: Pour building sewage into the sedimentation tank housing 1 from the blanking pipe 2. A part of the sewage will pass through the first filter layer 5, the second filter layer 6, and the third filter layer 7 in sequence for filtration. The filtered clean water can be discharged through the second drain pipe 8. The sludge pump 10 extracts the impurities collected in the collection pipe 3 through the sludge suction pipe 11 and discharges them through the sludge discharge pipe 12. During filtration, the impurities filtered by the first filter layer 5 fall into the collection pipe 3 through the top opening of the collection pipe 3 under the action of gravity. The impurities filtered by the second filter layer 6 fall into the collection pipe 3 through the first communication hole 19 under the action of gravity. The impurities filtered by the third filter layer 7 fall into the collection pipe 3 through the second communication hole 20 under the action of gravity. Static suspension separation is carried out. The clear water obtained after standing is discharged from the first drain pipe 4. By filtering the building sewage through the first filter layer 5, the second filter layer 6, and the third filter layer 7 three times, the collection of impurities and the discharge of filtered water are accelerated, and the sedimentation efficiency of the building sewage is improved. The large impurities in the building sewage are filtered by the coarse filter layer, the small impurities in the building sewage are filtered by the fine filter layer, and the tiny impurities in the water are filtered by the activated carbon filter layer. The three-layer classification filtration is beneficial to accelerating the screening of impurities in the water, accelerating the solid-liquid separation speed of the building sewage, and improving the sedimentation efficiency of the building sewage;

[0032] Among them, the motor 14 drives the rotating shaft 15 to rotate. The stirring rake 18 slowly stirs the building impurities collected and precipitated at the bottom of the collection pipe 3 driven by the rotating roller 17. During stirring, a flocculant is added into the interior of the sedimentation tank housing 1 to promote the particles to become larger, improve the sedimentation of the sewage, and is beneficial to promoting the sedimentation of the particles in the building sewage. The water distribution plate 16 guides the sewage discharged from the blanking pipe 2 towards the inner wall direction of the sedimentation tank housing 1, which is beneficial to fully filter the sewage and improves the practicality during use;

[0033] At the same time, the waterproof shell 21 provides waterproof protection for the vibrator 22. When the first filter layer 5, the second filter layer 6, and the third filter layer 7 need to be cleaned, the vibrator 22 is started. The vibrator 22 vibrates to shake off the impurities, which is beneficial to the automatic cleaning of the first filter layer 5, the second filter layer 6, and the third filter layer 7, and reduces the labor intensity of manual cleaning;

[0034] In addition, the drainage of the second drain pipe 8 and the first drain pipe 4 is controlled by the valve 23, which improves the practicality during use.

[0035] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Although the present application 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 perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A sedimentation tank for separating sediments for building sewage treatment, comprising a sedimentation tank shell (1), characterized in that: A feeding pipe (2) is fixedly installed on the top of the sedimentation tank shell (1), and a collecting pipe (3) is fixedly installed inside the sedimentation tank shell (1); The outer wall of the collecting pipe (3) is provided with a first filter layer (5), a second filter layer (6), and a third filter layer (7) connected in sequence from top to bottom; the outer wall of the collecting pipe (3) is provided with a first connecting hole (19) located between the first filter layer (5) and the second filter layer (6); the outer wall of the collecting pipe (3) is provided with a second connecting hole (20) located between the second filter layer (6) and the third filter layer (7); and the ends of the first filter layer (5), the second filter layer (6), and the third filter layer (7) away from the collecting pipe (3) are fixedly mounted on the inner wall of the sedimentation tank shell (1); A second drainage pipe (8) is fixedly mounted on the bottom of the side wall of the sedimentation tank shell (1), a first drainage pipe (4) is fixedly mounted on the top of the side wall of the sedimentation tank shell (1), a power chamber (9) is provided inside the sedimentation tank shell (1), a mud pump (10) is fixedly mounted inside the sedimentation tank shell (1) at the power chamber (9), a mud pump (11) is fixedly mounted on the extraction end of the mud pump (10), an end of the mud pump (11) away from the mud pump (10) is fixedly mounted on the bottom end of the collecting pipe (3), and a mud delivery pipe (12) is fixedly mounted on the output end of the mud pump (10).

2. A sedimentation tank for separating sediments for construction sewage treatment according to claim 1, characterized in that: The first filter layer (5) is a coarse filter layer, the second filter layer (6) is a fine filter layer, and the third filter layer (7) is an activated carbon filter layer.

3. A sedimentation tank for separating sediments for construction sewage treatment according to claim 1, characterized in that: A motor frame (13) is fixedly mounted on the top of the sedimentation tank shell (1), a motor (14) is fixedly mounted inside the motor frame (13), a rotating shaft (15) is fixedly mounted on the output end of the motor (14), one end of the rotating shaft (15) passes through the top wall of the sedimentation tank shell (1) and a rotating roller (17) is fixedly mounted thereon, and a stirring rake (18) is fixedly mounted on the bottom end of the rotating roller (17).

4. A sedimentation tank for separating sediments for construction sewage treatment according to claim 3, characterized in that: A water separation plate (16) is fixedly mounted on the outer wall of the rotating shaft (15), and the water separation plate (16) is located inside the sedimentation tank shell (1).

5. A sedimentation tank for separating sediments for construction sewage treatment according to claim 1, characterized in that: A waterproof shell (21) is fixedly mounted on the bottom of each of the first filter layer (5), the second filter layer (6) and the third filter layer (7), and a vibrator (22) is fixedly mounted inside each of the waterproof shells (21).

6. A sedimentation tank for separating sediments for construction sewage treatment according to claim 1, characterized in that: Valves (23) are fixedly installed inside the second drainage pipe (8) and the first drainage pipe (4).

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