Gravity type sediment settler

Abstract

The utility model relates to the technical field of precipitator, especially for a gravity type silt precipitator, including the shell, the shell inside is equipped with the filter box inside lower extreme is equipped with the screen plate, the screen plate upper end is fixedly equipped with the filter filling, the shell one side upper end is fixedly equipped with the overflow port, the filter box upper end is fixedly equipped with the cylinder, the cylinder is connected with the water inlet box through the U -shaped tube, this precipitator utilizes the gravity effect, and the silt such as mud and sand in sewage can be fully settled. Sewage gradually flows down in the cylinder, after entering the filter box, the filter filling can preliminarily filter out the large particle impurities in sewage, such as mud and sand, leaves and the like. Subsequently, sewage stays for a period of time in the filter box, and the impurities such as mud and sand further deposit to the bottom under the action of gravity, effectively improve the removal rate of impurities such as mud and sand, and the water quality is significantly improved.

Description

Technical Field

[0001] This utility model relates to the field of sedimentation technology, specifically a gravity sedimentation device. Background Technology

[0002] In today's society, with the rapid development of industrialization and urbanization, water resources are facing increasingly severe pollution challenges. Wastewater discharge is constantly increasing, containing large amounts of solid impurities such as silt and leaves. These impurities not only pollute water bodies but also adversely affect subsequent water treatment processes, reducing treatment efficiency, increasing treatment costs, and may even cause blockages and damage to water treatment equipment, affecting its normal operation.

[0003] Traditional wastewater treatment methods often have limitations when dealing with wastewater containing large amounts of solid impurities such as silt. For example, while some simple sedimentation tanks can achieve a certain degree of silt settling, the settling efficiency is low and they cannot effectively remove fine particulate impurities from the wastewater, resulting in poor effluent quality. Furthermore, traditional sedimentation tanks require a large area, which is unsuitable for wastewater treatment facilities with limited space. While methods using mechanical filtration or chemical treatment can improve treatment efficiency, they involve complex equipment, high operating costs, and may generate secondary pollution, hindering sustainable development.

[0004] Therefore, a gravity sedimentation tank is needed to improve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a gravity sedimentation device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A gravity sedimentation tank includes an outer shell, a filter box inside the outer shell with a mesh plate at the lower end of the inner shell, filter packing fixedly installed at the upper end of the mesh plate, an overflow port fixedly installed at the upper end of one side of the outer shell, and a cylinder fixedly installed at the upper end of the filter box. The cylinder is connected to the inlet tank through a U-shaped pipe.

[0008] As a preferred embodiment of this utility model, a siphon tube is fixedly provided at the center of the filter box, and a blocking cylinder is slidably provided inside the siphon tube.

[0009] As a preferred embodiment of this utility model, a float is fixedly connected to the upper end of the blocking cylinder via a connecting rod, and a metal plate is fixedly attached to the upper end of the float.

[0010] As a preferred embodiment of this utility model, the surface of the blocking cylinder is provided with a through groove one, and the surface of the cylinder body is provided with a through groove two, with the through groove one and the through groove two being provided correspondingly.

[0011] As a preferred embodiment of this utility model, the surface of the cylinder is provided with a through groove three, and an annular pressure rod is slidably provided inside the cylinder corresponding to the through groove three. The two ends of the annular pressure rod pass through the through groove three and are fixedly provided with floats two.

[0012] As a preferred embodiment of this utility model, a permanent magnet is fixedly provided at the top of the cylinder, and the permanent magnet is arranged correspondingly to the metal plate above and below.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This sedimentation tank utilizes gravity to allow solid impurities such as silt and sand in wastewater to settle completely. Wastewater gradually flows downwards within the tank and enters the filter box. The filter media initially removes large particles such as silt and leaves. Subsequently, the wastewater remains in the filter box for a period of time, allowing silt and other impurities to further settle to the bottom under gravity, effectively improving the removal rate of silt and other impurities and significantly improving the quality of the effluent.

[0015] 2. The sedimentation tank has an automatic backwashing function. After the sediment is discharged along with the wastewater, clean water is drawn into the outer casing of the device under negative pressure to backwash the filter media. This process requires no manual operation, greatly reducing maintenance costs and labor intensity, and improving the operating efficiency and reliability of the equipment. The backwashing function can promptly remove blockages on the filter media, preventing damage due to long-term clogging. This not only ensures the stability of the filtration effect but also extends the service life of the filter media, reduces the frequency of equipment replacement, and lowers the long-term operating costs of the equipment.

[0016] 3. The overall structure of the sedimentation tank is simple and straightforward, mainly composed of an inlet tank, U-shaped pipe, cylinder, filter box, screen plate, filter media, overflow port, siphon pipe, and other components. These components work together to achieve the functions of sewage sedimentation, filtration, and backwashing, eliminating the need for complex mechanical devices and control systems, thus reducing the manufacturing difficulty and cost of the equipment.

[0017] 4. Since the sedimentation unit mainly relies on gravity and siphon principles to operate, it does not require additional power equipment to drive the water flow, resulting in extremely low energy consumption during operation. At the same time, the maintenance cost of the equipment is also low; the replacement and repair of major components are relatively simple, further reducing operating costs and giving it a significant economic advantage, making it particularly suitable for application in cost-sensitive wastewater treatment scenarios. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall internal structure of this utility model;

[0019] Figure 2This is a schematic diagram showing the overall and partial enlarged structure of this utility model;

[0020] Figure 3 This is a cross-sectional three-dimensional structural diagram of the present invention;

[0021] Figure 4 This is a cross-sectional front view of the present invention;

[0022] Figure 5 This is a schematic diagram of the siphon tube structure of this utility model.

[0023] In the diagram: 1. Outer shell; 2. Overflow port; 3. Filter box; 4. Filter media; 5. Mesh plate; 6. Inlet tank; 7. U-shaped pipe; 8. Cylinder; 9. Permanent magnet; 10. Siphon tube; 11. Connecting rod; 12. Float 1; 13. Metal plate; 14. Through groove 3; 15. Through groove 1; 16. Through groove 2; 17. Baffle cylinder; 18. Float 2; 19. Annular pressure rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] To facilitate understanding of this utility model, a more comprehensive description of it will be provided below with reference to relevant embodiments. Several embodiments of this utility model are given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0026] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] Please see Figure 1-5 This utility model provides a technical solution: a gravity sedimentation tank, including a shell 1, a filter box 3 inside the shell 1 with a mesh plate 5 at the lower end, and filter packing 4 fixed at the upper end of the mesh plate 5. An overflow port 2 is fixed at the upper end of one side of the shell 1. A cylinder 8 is fixed at the upper end of the filter box 3. The cylinder 8 is connected to the inlet tank 6 through a U-shaped pipe 7. Sewage enters from the inlet tank 6 and flows into the cylinder 8 through the U-shaped pipe 7. The U-shaped pipe 7 serves to connect and stabilize the water flow, ensuring that the water flows smoothly into the cylinder 8. The sewage gradually flows downward in the cylinder 8 and enters the filter box 3. The mesh plate 5 is located at the lower end of the filter box 3, and filter packing 4 is fixed at the upper end of the mesh plate 5. The filter packing 4 can initially filter out large particulate impurities in the sewage, such as silt, sand, and leaves. The filtered clear water is discharged from the overflow port 2.

[0029] As an example of this utility model, a siphon tube 10 is fixedly provided in the center of the filter box 3. A blocking cylinder 17 is slidably provided inside the siphon tube 10. After the sewage passes through the filter packing 4, it further settles. Under the action of gravity, impurities such as mud and sand gradually settle to the bottom of the filter box 3. The sewage stays in the filter box 3 for a period of time. Under the action of gravity, impurities such as mud and sand settle to the bottom. The filter packing 4 gradually gets blocked, and the water level inside the filter box 3 gradually rises. When the water level in the filter box 3 gradually rises, the float ball 12 rises with the water level, driving the blocking cylinder 17 to move upward in the siphon tube 10. When the water level reaches a certain height, the permanent magnet 9 is attracted to the metal plate 13. The first channel 15 and the second channel 16 correspond to each other and discharge the sediment in the filter box 3 by siphoning.

[0030] As an example of this utility model, the upper end of the blocking cylinder 17 is fixedly connected to a float 12 via a connecting rod 11, and a metal plate 13 is fixedly provided on the upper end of the float 12.

[0031] As an example of this utility model, the surface of the blocking cylinder 17 is provided with a through groove 15, and the surface of the cylinder 8 is provided with a through groove 16, with the through groove 15 and the through groove 16 being provided correspondingly.

[0032] As an example of this utility model, the surface of the cylinder 8 is provided with a through groove 3 14, and the inside of the cylinder 8 is provided with an annular pressure rod 19 corresponding to the through groove 3 14. The two ends of the annular pressure rod 19 pass through the through groove 3 14 and are fixedly provided with floats 2 18. When the sediment is discharged with the sewage, the clean water in the outer shell 1 of the device is drawn in under the action of negative pressure to backwash the filter packing 4. When all the sewage is discharged, the floats 2 18 lose buoyancy and are pressed against the upper end of the blocking cylinder 17 by the annular pressure rod 19, increasing the weight and causing the permanent magnet 9 to detach from the metal plate 13 due to excessive pressure. This causes the blocking cylinder 17 to move downward in the siphon tube 10, causing the through groove 1 15 and the through groove 2 16 to be misaligned, completing the blockage and starting the next round of sedimentation.

[0033] As an example of this utility model, a permanent magnet 9 is fixedly provided on the top of the cylinder 8, and the permanent magnet 9 is arranged vertically and vertically corresponding to the metal plate 13.

[0034] Working principle: During use, sewage enters from the inlet tank 6 and flows into the cylinder 8 through the U-shaped pipe 7. The U-shaped pipe 7 serves to connect and stabilize the water flow, ensuring that the water flows smoothly into the cylinder 8. The sewage gradually flows downward in the cylinder 8 and enters the filter box 3. The lower end of the filter box 3 is equipped with a mesh plate 5, and the upper end of the mesh plate 5 is fixed with filter media 4. The filter media 4 can initially filter out large particulate impurities in the sewage, such as mud, sand, and leaves. The filtered clean water is discharged from the overflow port 2.

[0035] After passing through the filter media 4, the wastewater undergoes further sedimentation. Under the influence of gravity, impurities such as silt and sand gradually settle to the bottom of the filter box 3. The wastewater stays in the filter box 3 for a period of time, and under the influence of gravity, impurities such as silt and sand settle to the bottom. The filter media 4 gradually becomes clogged, and the water level inside the filter box 3 gradually rises.

[0036] As the water level in the filter box 3 gradually rises, the float ball 12 rises with the water level, causing the baffle cylinder 17 to move upward in the siphon tube 10. When the water level reaches a certain height, the permanent magnet 9 is attracted to the metal plate 13, and the through groove 15 and through groove 2 16 correspond to each other, siphoning out the sediment in the filter box 3.

[0037] When the sediment is discharged along with the sewage, the clean water inside the outer shell 1 is drawn in under negative pressure to backwash the filter media 4. When all the sewage is discharged, the float ball 18 loses buoyancy and is pressed against the upper end of the blocking cylinder 17 by the annular pressure rod 19, increasing the weight and causing the permanent magnet 9 to detach from the metal plate 13 due to excessive pressure. This causes the blocking cylinder 17 to move downward in the siphon tube 10, causing the first channel 15 and the second channel 16 to be misaligned, completing the blockage and starting the next round of sedimentation.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gravity sedimentation tank, comprising a shell (1), characterized in that: The outer shell (1) has a filter box (3) inside, and a mesh plate (5) is provided at the lower end of the filter box (3). The filter packing (4) is fixedly provided at the upper end of the mesh plate (5). An overflow port (2) is fixedly provided at the upper end of one side of the outer shell (1). A cylinder (8) is fixedly provided at the upper end of the filter box (3). The cylinder (8) is connected to the water inlet tank (6) through a U-shaped pipe (7).

2. The gravity sedimentation tank according to claim 1, characterized in that: The filter box (3) is fixedly provided with a siphon tube (10) at the center inside, and a blocking cylinder (17) is slidably provided inside the siphon tube (10).

3. A gravity sedimentation tank according to claim 2, characterized in that: The upper end of the blocking cylinder (17) is fixedly connected to a float (12) via a connecting rod (11), and a metal plate (13) is fixedly attached to the upper end of the float (12).

4. A gravity sedimentation tank according to claim 3, characterized in that: The surface of the blocking cylinder (17) is provided with a through groove one (15), and the surface of the cylinder body (8) is provided with a through groove two (16). The through groove one (15) and the through groove two (16) are provided correspondingly.

5. A gravity sedimentation tank according to claim 4, characterized in that: The surface of the cylinder (8) is provided with a through groove three (14), and an annular pressure rod (19) is slidably provided inside the cylinder (8) corresponding to the through groove three (14). The two ends of the annular pressure rod (19) pass through the through groove three (14) and are fixedly provided with floats two (18).

6. A gravity sedimentation tank according to claim 5, characterized in that: A permanent magnet (9) is fixedly provided on the top of the cylinder (8), and the permanent magnet (9) is arranged vertically and vertically with the metal plate (13).

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