Reaction tank supernatant extraction device for water treatment

Abstract

The utility model mainly relates to the technical field of sewage treatment, in particular to a reaction tank supernatant extraction device for water treatment. Comprising an extraction box, a filtering cavity and a liquid storage cavity which are distributed up and down are formed in the extraction box, light objects are symmetrically arranged on the two sides of the outer portion of the liquid storage cavity, liquid taking pipes are arranged on the two sides of the extraction box, and the liquid taking pipes are connected with the water inlet ends of water pumps fixed to the two sides of the extraction box; sliding rails are arranged at the head end and the tail end of the extraction box correspondingly, and sliding grooves in the sliding rails are slidably connected with the sliding ends at the head end and the tail end of the extraction box. The extraction box of the reaction tank supernatant extraction device for water treatment only stably moves in the vertical direction along with water flow, the extraction position can be flexibly adjusted according to the change of the thickness of the supernatant in the reaction tank, and the problems that the extraction precision is not high, and the extraction quality of the supernatant is affected are solved.

Description

Technical Field

[0001] The present application relates to the technical field of sewage treatment, and particularly relates to a supernatant extraction device for a reaction tank used in water treatment. Background Art

[0002] In the technical field of water treatment, as one of the key links, a reaction tank is used for precipitation, flocculation or other chemical reactions to remove pollutants such as suspended solids, colloids, organic matter and certain heavy metal ions in water. During these reaction processes, the water body in the reaction tank will form two layers, supernatant and sediment, after a certain period of time. In order to improve water treatment efficiency and water quality, it is crucial to effectively extract the supernatant in the reaction tank and further process it or directly discharge it.

[0003] Currently, most of the existing supernatant extraction devices have certain limitations and deficiencies, mainly including: low extraction accuracy, many devices are difficult to accurately control the extraction depth when extracting the supernatant, and it is easy to bring the bottom sediment along, affecting the quality of the supernatant; lack of flexibility, the existing devices are often fixed in one position and it is difficult to flexibly adjust the extraction position according to the change in the thickness of the supernatant in the reaction tank. Summary of the Invention

[0004] In view of the above problems, the present application provides a supernatant extraction device for a reaction tank used in water treatment, which can solve the problems that the extraction device cannot quickly extract and recover the supernatant in the reaction tank and is difficult to accurately control the extraction depth, and improve the supernatant extraction efficiency.

[0005] To achieve the purpose of the present application, the following technical solutions are provided in the present application:

[0006] The present application provides a supernatant extraction device for a reaction tank used in water treatment, including an extraction tank. A filter chamber and a liquid storage chamber are arranged up and down inside the extraction tank. Light objects are symmetrically arranged on both sides of the outside of the liquid storage chamber. Liquid extraction pipes are arranged on both sides of the extraction tank, and the liquid extraction pipes are connected to the water inlet ends of water pumps fixed on both sides of the extraction tank. Slide rails are respectively arranged at the head and tail ends of the extraction tank, and the sliding grooves inside the slide rails are slidably connected to the sliding ends at the head and tail ends of the extraction tank.

[0007] In a possible implementation manner, an installation frame is arranged at the top inside the filter chamber, and a lead screw is arranged inside the installation frame. The lead screw is threadedly connected to a scraper.

[0008] In a possible implementation manner, a filter plate is arranged on the bottom surface inside the filter chamber, and the tip of the scraper is attached to the top surface of the filter plate.

[0009] In a possible implementation manner, liquid extraction pipes are arranged on both sides of the extraction tank; the liquid extraction pipes are connected to the water inlet ends of water pumps fixed on both sides of the extraction tank.

[0010] In a possible implementation, a spray pipe is provided above the filtering chamber. A plurality of nozzles are provided on the spray pipe, and the spray pipe is connected to the water outlet end of the water pump through a delivery pipe.

[0011] In a possible implementation, one end of a drain pipe is connected to the liquid storage chamber. The other end of the drain pipe extends upward in a bent manner and is connected to a submersible pump.

[0012] In a possible implementation, the slide rail is fixedly connected to the support frame, and the support frame is detachably connected to the periphery of the reaction tank.

[0013] In a possible implementation, a ventilation hole is provided at the top of the liquid storage chamber, and a filter screen is installed on the ventilation hole.

[0014] In a possible implementation, the light objects arranged on both outer sides of the liquid storage chamber are floating balls.

[0015] Beneficial effects:

[0016] By providing a supernatant extraction device for a reaction tank used in water treatment according to the present application, the extraction box floats on the liquid inside the reaction tank, so that the liquid extraction pipe on the extraction box is always located at the water surface position, and the extraction box is limited by means of a slide rail, so that the extraction box together with the liquid extraction pipe rises and falls together with the decrease of the liquid level height of the reaction tank. There is no need for personnel to adjust the device, which is convenient for personnel to quickly and effectively extract the supernatant of the reaction tank. At the same time, the device can be placed in different reaction tanks for use, and the device has high flexibility. Description of the drawings

[0017] The drawings are used to provide a further understanding of the present application, and form a part of the specification. Together with the embodiments of the present application, they are used to explain the present application, and do not form a limitation to the present application;

[0018] Figure 1 It is a schematic cross-sectional view of the extraction box of the supernatant extraction device provided by the embodiment of the present application;

[0019] Figure 2 It is a schematic structural view of the supernatant extraction device provided by the embodiment of the present application;

[0020] Figure 3 It is a side view of the supernatant extraction device provided by the embodiment of the present application;

[0021] Figure 4 It is a cross-sectional view of the supernatant extraction device provided by the embodiment of the present application;

[0022] In the figure: 1, extraction tank; 2, filtration chamber; 3, liquid storage chamber; 4, floating ball; 5, water pump; 6, liquid extraction pipe; 7, delivery pipe; 8, spray pipe; 9, slide rail; 10, support frame; 11, filter plate; 12, scraper; 13, mounting frame; 14, lead screw; 15, drain pipe. Detailed implementation manners

[0023] To make the objectives, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be clearly and completely described below with reference to the accompanying drawings in the present application. Apparently, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0024] The terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features; in the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0025] Embodiment 1

[0026] Reference Figures 1-4 A supernatant extraction device for a reaction tank in water treatment provided by an embodiment of the present application includes an extraction tank 1. A filtration chamber 2 and a liquid storage chamber 3 are arranged up and down inside the extraction tank 1. The filtration chamber 2 is used to filter impurities in the supernatant and remove larger particulate matters, and the liquid storage chamber 3 is used to store the filtered supernatant. Light objects are symmetrically arranged on both sides of the liquid storage chamber 3. Optionally, the light objects are floating balls 4, such as foam balls or plastic balls, to adapt to the water level change and maintain the buoyancy and stability of the device.

[0027] Further, the floating ball 4 and the connecting rod on the surface of the extraction tank 1 are connected by a threaded connection, and the two can be rotatably installed or disassembled, which is convenient for personnel to adjust the appropriate number and position of the floating balls according to the actual situation. As the water level in the reaction tank changes, the floating ball 4 drives the extraction tank 1 to move up and down, ensuring that the liquid extraction pipes 6 on both sides of the extraction tank 1 are always above the water surface, so as to extract the liquid on the uppermost layer of the reaction tank.

[0028] In a possible implementation manner, a mounting frame 13 is bolted to the inner top of the filtration chamber 2. A lead screw 14 is arranged inside the mounting frame 13, and the lead screw 14 is threadedly connected to a scraper 12. The mounting frame 13 is used to support the lead screw and the scraper, and at the same time provide guidance for the movement of the scraper.

[0029] Specifically, the drive motor is installed on one side of the mounting frame 13 and is connected to the lead screw 14 to ensure that the lead screw 14 can rotate stably. At the same time, since the connecting end of the scraper 12 is threadedly connected to the surface of the lead screw 14, when the lead screw 14 rotates, it can drive the scraper 12 to move, causing the scraper to move along the bottom surface of the filtration chamber 2, and the rectangular cavity inside the mounting frame 13 can limit the connecting end of the scraper 12.

[0030] In a possible implementation manner, a filter plate 11 is provided on the inner bottom surface of the filtration chamber 2, and the filter plate 11 is used to filter impurities in the supernatant; the tip part of the scraper 12 is attached to the top surface of the filter plate 11 for removing impurities on the filter plate 11.

[0031] Specifically, as the lead screw 14 rotates, the scraper 12 moves along the bottom surface of the filtration chamber 2, pushing the impurities accumulated on the filter plate 11 to one side or collecting them in a designated area, thereby realizing the automatic cleaning of the filter plate 11, which is convenient for personnel to quickly clean the impurities on the filter plate 11 regularly.

[0032] In a possible implementation manner, liquid extraction pipes 6 are provided on both sides of the extraction tank 1, and the liquid extraction pipes 6 are connected to the water inlet ends of water pumps 5 fixed on both sides of the extraction tank 1 to ensure that the supernatant in the reaction tank can smoothly enter the water pumps; a spray pipe 8 is provided above the filtration chamber 2, and the spray pipe 8 is connected to the water outlet end of the water pump through a delivery pipe 7. The delivery pipe 7 is flange-connected to the spray pipe 8, and a plurality of nozzles are provided on the spray pipe 8 for evenly distributing the supernatant into the filtration chamber 2 for filtration.

[0033] Preferably, components such as the water pumps 5, the liquid extraction pipes 6, and the delivery pipes 7 are symmetrically arranged on both sides of the extraction tank 1, with a total of two groups, which improves the efficiency of extracting the supernatant. The supernatant enters the delivery pipe 7 from the multiple liquid extraction ports at the bottom of the liquid extraction pipes 6. Finally, the two delivery pipes 7 inject the liquid into the spray pipe 8 together, and then the liquid is sprayed into the extraction tank 1.

[0034] In a possible implementation manner, one end of a drain pipe 15 is connected to the liquid storage chamber 3, and the other end of the drain pipe 15 bends upward and extends and is connected to a submersible pump. When the extraction tank 1 needs to move up and down with the change of the water level, using a drain pipe that bends upward can enable the liquid to be discharged smoothly, and even when the extraction tank 1 descends, it will not affect the discharge of the liquid.

[0035] Specifically, when the extraction tank 1 descends with the water level, the bent portion of the drain pipe 15 can maintain a certain height, and the pressure above the liquid in the pipe is relatively stable, ensuring that the liquid can be discharged smoothly, reducing the drainage interruption caused by the descent of the extraction tank, and the bent design of the drain pipe 15 can reduce liquid backflow. The submersible pump is used to pump the liquid out of the drain pipe and further process or discharge it.

[0036] Optionally, the submersible pump is used to discharge the supernatant liquid in the liquid storage chamber 3 out of the extraction tank 1 and transport it to the subsequent processing unit.

[0037] In a possible implementation manner, slide rails 9 are respectively arranged at the head and tail ends of the extraction tank 1. The sliding grooves inside the slide rails 9 are slidably connected to the sliding ends at the head and tail ends of the extraction tank 1, enabling the extraction tank 1 to move smoothly along the slide rails. Before extraction, the number of slide rails 9 needs to be selected according to the depth of the reaction tank, and the extraction tank 1 and the slide rails 9 are placed into the reaction tank. The slide rails are fixedly connected to the support frame 10, and the support frame 10 is detachably connected to the periphery of the reaction tank.

[0038] Specifically, the cooperation between the sliding grooves and the sliding ends at the head and tail ends of the extraction tank 1 only allows the extraction tank 1 to slide along the length direction of the slide rails 9, that is, to rise and fall in the vertical direction, restricting the movement of the extraction tank 1 in the horizontal direction, ensuring that the extraction tank 1 can only move linearly up and down, and avoiding lateral drift or tilt caused by the action of water flow or wind. The slide rails 9 are welded to the support frame 10, and the support frame 10 is detachably connected to the edge of the reaction tank through screws or other connecting parts, adapting to different reaction tank sizes and shapes. When changing the position of the reaction tank or re - arranging the facilities, the position and quantity of the support frame 10 can be adjusted according to the actual situation to achieve the best support effect.

[0039] Optionally, the sliding end can be one of a roller type, a slider type, a bearing type, and a guide rail type.

[0040] In a possible implementation manner, a ventilation hole is provided at the top of the liquid storage chamber 3, and a filter screen is installed on the ventilation hole.

[0041] Specifically, when the liquid enters or leaves the liquid storage chamber 3, the ventilation hole allows air to enter and exit, thereby balancing the pressure difference inside and outside the liquid storage chamber. The filter screen can prevent impurities falling off when the scraper cleans the filter plate 11 from entering the interior of the liquid storage chamber 3.

[0042] The working principle is as follows:

[0043] When the device is in use, the floating balls 4 on both sides of the extraction tank 1 ensure that the extraction tank 1 can move up and down with the change of water level, so that the liquid extraction pipe 6 on the extraction tank 1 is always located at the water surface position. When extracting the supernatant of the reaction tank, the liquid extraction pipe 6 always extracts the uppermost liquid. First, under the power of the water pump, the supernatant on the surface of the reaction tank enters the left and right groups of liquid extraction pipes 6 and then enters the conveying pipe 7. The two groups of conveying pipes 7 inject the liquid into the spray pipe 8 together. Then, the spray pipe 8 evenly sprays the supernatant in the filtration chamber 2 for filtration. The supernatant after filtration enters the liquid storage chamber 3 and waits to be discharged by the drain pipe 15. During this process, the scraper 12 will scrape the impurities filtered on the filter plate 11 to one side, and the personnel will clean it regularly.

[0044] The beneficial effects of adopting the embodiment of the present application are as follows:

[0045] The supernatant extraction device for the reaction tank in the present application enables the extraction tank to move smoothly only in the vertical direction with the water flow by setting the slide rail and the sliding end, and can flexibly adjust the extraction position according to the change of the thickness of the supernatant in the reaction tank, avoiding the problems of lateral drift or inclination caused by water flow or wind and the low quality of supernatant extraction; through the cooperative design of the lead screw in the installation frame and the scraper, the tip part of the scraper fits the top surface of the filter plate, ensuring the cleanliness of the filter plate surface and prolonging the service life of the filter plate; the use of a drain pipe extending upward in a curved shape can prevent liquid backflow and help reduce the vibration generated during liquid flow, improving the stability of the system; the air vent at the top of the liquid storage chamber is equipped with a filter screen, which can prevent foreign impurities from entering the liquid storage chamber and at the same time maintain the pressure balance inside and outside the liquid storage chamber to ensure the smooth flow of the liquid.

[0046] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. The present application is not limited to the exact structure already described and illustrated in the drawings. It cannot be considered that the specific implementation of the present application is only limited to these descriptions. For those of ordinary skill in the technical field to which the present application belongs, various changes and deformations made without departing from the concept of the present application should be regarded as belonging to the protection scope of the present application.

Claims

1. A water treatment reaction tank supernatant extraction device, comprising an extraction box, characterized in that: The extraction box is provided with a filter chamber and a liquid storage chamber distributed up and down, and lightweight objects are symmetrically arranged on both sides of the outside of the liquid storage chamber. Liquid collection pipes are provided on both sides of the extraction box, and the liquid collection pipes are connected to the water inlet ends of the water pumps fixed on both sides of the extraction box. Slide rails are respectively provided at the head and tail ends of the extraction box, and the slide grooves inside the slide rails are slidably connected to the sliding ends at the head and tail ends of the extraction box.

2. The device for extracting supernatant from a reaction tank for water treatment according to claim 1, characterized in that: A mounting frame is arranged on the top of the inner side of the filter cavity, a screw rod is arranged inside the mounting frame, and the screw rod is threadedly connected to the scraper.

3. The device for extracting supernatant from a reaction tank for water treatment according to claim 2, characterized in that: A filter plate is arranged on the bottom surface of the filter cavity, and the tip of the scraper is in contact with the top surface of the filter plate.

4. The device for extracting supernatant from a reaction tank for water treatment according to claim 3, characterized in that: A spray pipe is arranged above the filter cavity, a plurality of nozzles are arranged on the spray pipe, and the spray pipe is connected to the water outlet end of the water pump through a delivery pipe.

5. The device for extracting supernatant from a reaction tank for water treatment according to claim 1, characterized in that: One end of a liquid discharge pipe is connected to the liquid storage cavity, and the other end of the liquid discharge pipe is bent and extends upward and is connected to a submersible pump.

6. The device for extracting supernatant from a reaction tank for water treatment according to claim 1, characterized in that: The slide rail is fixedly connected to the support frame, and the support frame is detachably connected to the periphery of the reaction pool.

7. The device for extracting supernatant from a reaction tank for water treatment according to claim 1, characterized in that: A vent hole is provided on the top of the liquid storage cavity, and a filter screen is installed on the vent hole.

8. The device for extracting supernatant from a reaction tank for water treatment according to claim 1, characterized in that: The light objects arranged on both sides of the outside of the liquid storage cavity are floating balls.

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