Liquid depositing tank

Abstract

The utility model relates to a liquid depositing tank, which comprises a tank body and a top cover, the top cover is arranged on the tank body, a feed port is arranged at the center of the top cover, a homogeneous feed pipeline is arranged in the tank body below the feed port, a filter hole is arranged on the side surface of the bottom of the homogeneous feed pipeline, and a coil pipe platform is arranged below the homogeneous feed pipeline. The coil pipe platform is horizontally arranged in the tank body through a platform supporting device, a conical sedimentation area is arranged at the bottom of the tank body, a drain outlet is formed in the bottom of the conical sedimentation area, an overflow opening is formed in one side of the upper portion of the tank body, and a pressure reducing opening is formed in a cover body on a feeding opening. The device disclosed by the utility model has the advantages of high-efficiency separation, reduction of occupied area, improvement of water quality, resource recycling, energy conservation and consumption reduction.

Description

Technical Field

[0001] The utility model relates to the technical field of solid-liquid separation, in particular to a liquid precipitation tank. Background Art

[0002] Liquid sedimentation tanks are mainly involved in many fields such as industrial wastewater treatment, solid-liquid separation in chemical reaction processes, and material purification. In these processes, liquid sedimentation tanks are the core equipment for achieving material sedimentation, clarification, concentration and solid-liquid separation.

[0003] Wastewater treatment: Wastewater generated in various industrial processes often contains large amounts of impurities such as suspended particles, colloids, and dissolved solids. By adding flocculants or precipitants to the wastewater, the pollutants are coagulated and flocculated, ultimately forming easily sedimentable particles. Liquid sedimentation tanks play a key role in this process, providing sufficient residence time and space for particles to fully settle and effectively separating the supernatant from the sediment.

[0004] Chemical Reaction Processes: In chemical production processes such as metal salt preparation and ore leaching, liquid precipitation tanks are used to clarify solutions and collect precipitated products. By precisely controlling reaction conditions and the flow pattern within the tank, the precipitation reaction is ensured to proceed fully and product quality is improved.

[0005] Material Purification: Liquid settling tanks are also essential in material refining processes such as pickling and dehydration of high-purity quartz sand. They are used to separate metal ions and other impurities precipitated from the quartz sand after pickling, allowing them to settle to the bottom, thereby obtaining a cleaner quartz sand product.

[0006] Environmental protection requirements: With increasingly stringent environmental regulations, higher standards for industrial wastewater discharge are being imposed. Efficient liquid sedimentation tank technology not only helps companies reduce pollution emissions but also helps recover valuable resources, in line with the development trend of a circular economy.

[0007] Therefore, the design and application technology of liquid sedimentation tanks need to be continuously improved and perfected, including optimizing the internal structure to improve sedimentation efficiency, using new materials to enhance corrosion resistance, introducing automated control systems to accurately adjust operating parameters, etc., which are all important manifestations of the development of its background technology. Utility Model Content

[0008] In order to solve the above technical problems existing in the background technology, the utility model provides a liquid sedimentation tank, which has the advantages of efficient separation, reduced floor space, improved water quality, resource recycling and energy saving.

[0009] The technical solution of the utility model is: the utility model is a liquid sedimentation tank, comprising a tank body and a top cover, the top cover is arranged on the tank body, and its special feature is that: a feed port is arranged at the center of the top cover, a homogeneous feed pipeline is arranged in the tank body below the feed port, a filter hole is arranged on the side of the bottom of the homogeneous feed pipeline, a coil platform is arranged below the homogeneous feed pipeline, the coil platform is horizontally arranged in the tank body through a platform support device, a conical sedimentation area is arranged at the bottom of the tank body, a sewage outlet is arranged at the bottom of the conical sedimentation area, an overflow port is arranged on one side of the upper part of the tank body, and a pressure reducing port is arranged on the cover body above the feed port.

[0010] Furthermore, the coil platform includes a coil and a coil tray. There are multiple coils, which are evenly distributed on the coil tray in the form of concentric circles and fixed. A steam inlet and a condensate outlet are provided on the outside of the tank body on the side of the coil platform. The steam inlet and the condensate outlet are both connected to the coil.

[0011] Furthermore, the platform support device includes an inner platform support plate, an outer platform support plate and a screen plate. The outer platform support plate is located below the outer side of the pipe tray, the inner platform support plate is located below the center of the pipe tray, and the screen plate is arranged between the inner platform support plate and the outer platform support plate and is located below the coil.

[0012] Furthermore, the inner platform support plate and the outer platform support plate are both annular.

[0013] Furthermore, the sieve plate is formed by splicing three fan-shaped sieve plates.

[0014] Furthermore, a spare sewage outlet is provided on the bottom side of the conical sedimentation area.

[0015] Furthermore, there are multiple filter holes, which are evenly distributed on the bottom side of the homogeneous feed pipeline.

[0016] Furthermore, cone reinforcement ribs are provided on the outer side of the bottom of the conical settlement area.

[0017] Furthermore, the tank body is made of corrosion-resistant material.

[0018] Furthermore, an inspection port is provided on the top cover.

[0019] The utility model provides a liquid sedimentation tank, the internal components of which include: a steady flow uniform stirring device, specifically a homogeneous feed pipeline, for uniformly distributing solid particles and solid particle mixed liquid and preventing the re-suspension of settled materials; a conical sedimentation area is provided at the bottom to facilitate the accumulation and discharge of solid particles.

[0020] The feed system of this utility model is equipped with a uniform feed pipeline to ensure that wastewater or solution to be treated can enter the sedimentation tank evenly, avoiding disturbances caused by water flow impact. The utility model is equipped with an automatic or manually controlled mud discharge valve at the bottom sewage outlet to discharge sediment regularly or continuously. Therefore, the utility model has the following beneficial effects in practical application:

[0021] 1) Efficient separation: The utility model can effectively promote the solid-liquid separation between suspended particles and solution, and improve the sedimentation efficiency and clarification effect through the optimized internal structure design, such as reasonable water inlet flow rate, mixing equipment and sedimentation space.

[0022] 2) Reduce floor space: Compared with open sedimentation tanks, this utility model is compact in size and can achieve large-scale treatment in a limited space, reducing the demand for site area.

[0023] 3) Improve water quality: For industrial wastewater or liquids containing impurities, the utility model can effectively remove solid particles, colloids and other pollutants, thereby significantly improving the effluent quality and meeting environmental emission standards or subsequent process requirements.

[0024] 4) Resource recycling: The solid matter precipitated by the present invention may contain valuable components and can be recycled and reused after proper treatment, which is conducive to resource circulation and sustainable development.

[0025] 5) Automated operation: This utility model is often equipped with an automatic control system that can monitor and adjust operating parameters (such as liquid level, pH value, temperature, etc.) in real time to achieve continuous and stable operation and reduce the need for manual intervention.

[0026] 6) Energy saving and consumption reduction: The utility model has good thermal insulation performance and precise technology, which saves energy and reduces consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural diagram of the utility model;

[0028] Figure 2 This is a schematic diagram of the top cover structure of the utility model;

[0029] Figure 3 This is a schematic diagram of the coil platform structure of the utility model;

[0030] Figure 4 It is a structural schematic diagram of the platform support device of the present utility model.

[0031] The following are the descriptions of the reference numerals:

[0032] 1. Inspection port; 2. Top cover; 3. Homogenizing feed line; 4. Tank body; 5. Coil platform; 6. Conical reinforcement ribs; 7. Alternate drain outlet; 8. Drain outlet; 9. Conical settling area; 10. Platform support; 11. Pipe tray; 12. Sieve plate; 13. Inner platform support plate; 14. Outer platform support plate; 15. Feed port; 16. Pressure relief port; 17. Overflow port; 18. Steam inlet; 19. Condensate outlet. DETAILED DESCRIPTION

[0033] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0034] See also Figure 1 、 2 The structure of a specific embodiment of the present utility model includes a tank body 4 and a top cover 2. The top cover 2 is arranged on the tank body 4. A feed port 15 is provided in the center of the top cover 2, and an inspection port 1 is provided on the left side. An overflow port 17 is provided on one side of the upper part of the tank body 4. A cover body is provided on the feed port 15, and a pressure relief port 16 is provided on the cover body. A homogeneous feed pipeline 3 is provided in the tank body 4 below the feed port 15. Filter holes are provided on the bottom side of the homogeneous feed pipeline 3. There are multiple filter holes, which are evenly distributed on the bottom side of the homogeneous feed pipeline 3. A coil platform 5 is provided below the homogeneous feed pipeline 3. The coil platform 5 is horizontally arranged in the tank body 4 through a platform support device 10. A conical sedimentation area 9 is provided at the bottom of the tank body 4, and a sewage outlet 8 is provided at the bottom of the conical sedimentation area 9. A spare sewage outlet 7 is provided on the bottom side of the conical sedimentation area 9. Conical reinforcement ribs 6 are provided on the bottom side of the conical sedimentation area 9.

[0035] The tank body 4 is made of corrosion-resistant materials (such as stainless steel, fiberglass, polyethylene, etc.) and can be designed as a vertical or horizontal structure according to actual needs, with sufficient volume to meet the processing volume requirements.

[0036] See also Figure 3 The structure of the coil platform 5 in the present invention comprises a pipe tray 11 and a plurality of coils, arranged concentrically and fixedly on the pipe tray. A steam inlet 18 and a condensate outlet 19 are provided on the side of the tank 4, outside the coil platform 5. Both steam inlet 18 and condensate outlet 19 are connected to the coils. The coils are used for heat exchange, heating the liquid to the desired temperature. Hot steam enters the coils through the steam inlet 18, heats the mixed liquid in the tank 4, and the resulting condensate is discharged through the condensate outlet 19.

[0037] See also Figure 4The platform support device 10 of the present invention includes an inner platform support plate 13, an outer platform support plate 14, and a sieve plate 12. The outer platform support plate 14 is located below the outer side of the pipe tray 11, while the inner platform support plate 13 is located below the center of the pipe tray 11. The sieve plate 12 is arranged between the inner and outer platform support plates 13, 14, and is located below the coil 11. In this embodiment, the inner and outer platform support plates 13, 14 are both annular. The sieve plate 12 is composed of three sector-shaped sieve plates spliced ​​together.

[0038] The process flow of this utility model is as follows:

[0039] 1) Pretreatment stage: Depending on the nature of the wastewater, pretreatment steps such as pH adjustment and coagulant addition are required to enhance the sedimentation effect.

[0040] 2) Reaction and precipitation stage: The wastewater enters the homogenizing feed pipe 3 in the sedimentation tank through the feed port 15. At an appropriate speed, the suspended particles fully absorb the flocculant and form larger flocs.

[0041] 3) Standing separation stage: The mixed liquid is allowed to stand in the tank for a period of time to encourage the flocs to naturally settle to the bottom of the tank. During this period, steam is passed through the steam inlet 18 to the coil on the pipe tray 11 to heat the mixed liquid. The coil is used for heat exchange to heat the mixed liquid to the required temperature, and the formed condensate is discharged from the condensate outlet 19.

[0042] 4) Clarification and discharge stage: The supernatant is discharged through the overflow port 17 to ensure that the set effluent turbidity standard is reached.

[0043] 5) Sludge dewatering stage: The sediment is discharged through the standby sewage outlet 7 and can be further dehydrated by a centrifuge.

[0044] The utility model can also be equipped with an automatic control system

[0045] Liquid level monitoring and control: Configure the liquid level sensor to realize real-time monitoring and automatic control of the liquid level in the sedimentation tank to ensure normal operation.

[0046] pH value online monitoring: For processes that require precise pH control, an online pH detector can be installed to automatically adjust the amount of acid and alkali added based on feedback data. The pH detector is placed on the external pipe of the sedimentation tank.

[0047] Remote monitoring and early warning: integrated into the factory automation control system, supporting remote monitoring of operating status and fault early warning functions.

[0048] The above is an overview of the technical solution of a typical liquid sedimentation tank of the present invention. In actual application, detailed design can also be carried out in combination with specific water quality conditions, treatment objectives, site restrictions and other factors.

[0049] The technical contents not specifically described in the present invention and the above embodiments are the same as those in the prior art.

[0050] The above are only specific implementation methods disclosed in the present utility model, but the protection scope disclosed in the present utility model is not limited thereto. The protection scope disclosed in the present utility model shall be based on the protection scope of the claims.

Claims

1. A liquid sedimentation tank, comprising a tank body and a top cover, wherein the top cover is arranged on the tank body, and is characterized in that: A feed port is provided at the center of the top cover, a homogeneous feed pipeline is provided in the tank body below the feed port, a filter hole is provided on the bottom side of the homogeneous feed pipeline, a coil platform is provided below the homogeneous feed pipeline, and the coil platform is horizontally arranged in the tank body through a platform support device, a conical sedimentation area is provided at the bottom of the tank body, a sewage outlet is provided at the bottom of the conical sedimentation area, an overflow port is provided on one side of the upper part of the tank body, and a pressure reducing port is provided on the cover body above the feed port.

2. The liquid precipitation tank according to claim 1, characterized in that: The coil platform includes a coil and a pipe tray. There are multiple coils, which are evenly distributed on the pipe tray in a concentric circle and fixed. A steam inlet and a condensate outlet are provided on the outside of the tank body on the side of the coil platform. The steam inlet and the condensate outlet are both connected to the coil.

3. The liquid precipitation tank according to claim 2, characterized in that: The platform support device includes an inner platform support plate, an outer platform support plate and a screen plate. The outer platform support plate is located below the outer side of the pipe tray, the inner platform support plate is located below the center of the pipe tray, and the screen plate is arranged between the inner platform support plate and the outer platform support plate and is located below the coil.

4. The liquid precipitation tank according to claim 3, characterized in that: The inner platform supporting plate and the outer platform supporting plate are both annular.

5. The liquid precipitation tank according to claim 4, characterized in that: The sieve plate is formed by splicing three fan-shaped sieve plates.

6. The liquid precipitation tank according to any one of claims 1 to 5, characterized in that: A spare sewage outlet is provided on the bottom side of the conical sedimentation area.

7. The liquid precipitation tank according to claim 6, characterized in that: There are multiple filter holes, which are evenly distributed on the bottom side of the homogeneous feed pipeline.

8. The liquid precipitation tank according to claim 7, characterized in that: Cone reinforcement ribs are provided on the outer side of the bottom of the conical settlement area.

9. The liquid precipitation tank according to claim 8, characterized in that: The tank body is made of corrosion-resistant material.

10. The liquid precipitation tank according to claim 9, characterized in that: An inspection port is provided on the top cover.

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