Secondary filtering equipment for high-concentration aquaculture wastewater

Abstract

The utility model discloses a culture high concentration wastewater secondary filtration equipment relates to culture wastewater treatment technical field, including filter box, filter subassembly and return pipe, the lower side of filter box is equipped with the purification box, and the lower side of purification box is equipped with the detection box, filter subassembly is equipped inside the filter box, and the return pipe is equipped with the detection box. The filtering assembly comprises a first filtering net, a second filtering net, a rotating motor, a rotating shaft, a spiral feeding blade and a blow-off pipe, the first filtering net and the second filtering net are fixed in the filtering box from top to bottom, the blow-off pipe is connected to the lower side of the middle of the second filtering net, and the rotating motor is installed on the upper side of the middle of the filtering box. According to the secondary filtering equipment for the high-concentration breeding wastewater, the first filter screen and the second filter screen are convenient for double filtration of wastewater in the filter box, the rotation of the rotating shaft can drive the spiral feeding blade to rotate so as to facilitate discharging of waste materials, and finally impurities in the blow-off pipe can enter the spiral feeder in a concentrated manner so as to facilitate convenient blow-off.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture wastewater treatment technology, specifically a secondary filtration device for high-concentration aquaculture wastewater. Background Technology

[0002] Wastewater refers to the total amount of water discharged during residential activities and runoff rainwater. It includes domestic sewage, industrial wastewater, and other non-water-using wastewater such as initial rainwater runoff into drainage pipes and ditches. Aquaculture generates wastewater during the breeding process, and appropriate filtration equipment is required for wastewater treatment.

[0003] For example, the utility model application with application number 202320342708.X discloses a multi-stage filtration aquaculture wastewater treatment device. Similar wastewater treatment equipment currently has the following shortcomings: although it can perform multi-stage filtration of wastewater, it is not convenient to discharge the filtered impurities in a convenient manner, and its use is limited. Utility Model Content

[0004] The purpose of this invention is to provide a secondary filtration device for high-concentration wastewater from aquaculture, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a secondary filtration device for high-concentration wastewater from aquaculture, comprising a filter box, a filter assembly, and a return pipe. A purification box is installed on the lower side of the filter box, and a detection box is installed on the lower side of the purification box. The filter assembly is installed inside the filter box, and the filter assembly includes a first filter screen, a second filter screen, a rotary motor, a rotary shaft, a spiral feeder, and a drain pipe. The first filter screen and the second filter screen are fixed from top to bottom inside the filter box, and a drain pipe is connected to the lower middle part of the second filter screen. A rotary motor is installed on the upper middle part of the filter box, and a rotary shaft is provided at the bottom of the rotary motor. A spiral feeder is fixed to the outer side below the rotary shaft. A water pump is installed on one side of the external side of the detection box, and a return pipe is connected to the upper side of the water pump. The return pipe is interconnected with the interior of the purification box.

[0006] Furthermore, water inlet pipes are fixed on both sides of the upper part of the filter box, and a water outlet pipe is connected to the lower part of the middle of the detection box, with a water outlet valve installed on the lower side of the water outlet pipe.

[0007] Furthermore, both the first and second filter screens have a "V" shaped cross-section, and the lower middle part of the first filter screen has an open structure.

[0008] Furthermore, the filter assembly also includes connecting rods and anti-clogging scrapers. Two sets of connecting rods are fixed on both sides of the lower middle side of the rotating shaft, and an anti-clogging scraper is fixed on the other side of the connecting rod.

[0009] Furthermore, the anti-clogging scraper has an inclined structure, and the upper and lower sets of the anti-clogging scrapers are respectively attached to the upper side of the first filter screen and the second filter screen.

[0010] Furthermore, the filter assembly also includes a control valve installed in the middle of the drain pipe and a screw feeder installed at the bottom of the drain pipe, and the drain pipe and the screw feeder are internally connected.

[0011] Furthermore, a first drain pipe is connected between the filter box and the purification box, and a biological filter layer is provided inside the purification box.

[0012] Furthermore, a second drain pipe is connected between the purification box and the testing box, and a measuring instrument is installed inside the testing box.

[0013] This utility model provides a secondary filtration device for high-concentration wastewater from aquaculture, which has the following beneficial effects:

[0014] This utility model is equipped with a filtration assembly. The first and second filter screens, which are V-shaped, facilitate dual filtration of wastewater inside the filter box. The rotating motor and rotating shaft drive the connecting rod and anti-clogging scraper to rotate, so that the upper and lower sets of anti-clogging scrapers clean the surfaces of the first and second filter screens respectively. The lower middle part of the first filter screen has an open structure, which allows the impurities filtered by the first filter screen and the impurities filtered by the second filter screen to enter the interior of the sewage pipe. The rotation of the rotating shaft drives the rotation of the screw feeder to facilitate the discharge of waste material. Finally, the impurities inside the sewage pipe can be concentrated into the interior of the screw feeder for convenient sewage discharge.

[0015] This invention features a return pipe. Filtered wastewater from the filter box enters the purification box through the first drain pipe. The biological filter layer inside the purification box facilitates further purification of the wastewater. The purified wastewater from the purification box enters the testing box through the second drain pipe. The testing end of the measuring instrument is located in the testing box, which can detect whether the water meets the quality requirements. Water that meets the requirements can be discharged through the lower outlet pipe, while water that does not meet the requirements can be returned to the purification box through a water pump and return pipe for further purification, thus improving the filtration and purification effect. Attached Figure Description

[0016] Figure 1 This is a half-sectional structural diagram of a secondary filtration device for high-concentration wastewater from aquaculture according to this utility model.

[0017] Figure 2 This is a schematic diagram of the filter component structure of a secondary filtration device for high-concentration wastewater from aquaculture according to this utility model.

[0018] Figure 3This is a schematic diagram of the overall structure of a secondary filtration device for high-concentration wastewater from aquaculture, according to this utility model.

[0019] In the diagram: 1. Filter box; 2. Inlet pipe; 3. Purification box; 4. Detection box; 5. Outlet pipe; 6. Outlet valve; 7. Filter assembly; 701. First filter screen; 702. Second filter screen; 703. Rotary motor; 704. Rotating shaft; 705. Connecting rod; 706. Anti-clogging scraper; 707. Spiral feeder blade; 708. Sewage pipe; 709. Control valve; 8. Spiral feeder; 9. First drain pipe; 10. Biological filter layer; 11. Second drain pipe; 12. Measuring instrument; 13. Water pump; 14. Return pipe. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0021] like Figure 1 and Figure 3 As shown, a secondary filtration device for high-concentration aquaculture wastewater includes a filter box 1, a filter assembly 7, and a return pipe 14. A purification box 3 is installed on the lower side of the filter box 1, and a detection box 4 is installed on the lower side of the purification box 3. Inlet pipes 2 are fixed on both sides of the upper part of the filter box 1. An outlet pipe 5 is connected to the lower middle part of the detection box 4, and an outlet valve 6 is installed on the lower side of the outlet pipe 5. A first drain pipe 9 connects the filter box 1 and the purification box 3. A biological filter layer 10 is provided inside the purification box 3. A second drain pipe 11 connects the purification box 3 and the detection box 4. A measuring instrument 12 is installed inside the detection box 4. A water pump 13 is installed on one side of the outside of the detection box 4, and a return pipe 14 is connected to the upper side of the water pump 13. The flow pipe 14 and the return pipe 14 are interconnected with the interior of the purification box 3. The wastewater filtered inside the filter box 1 can enter the interior of the purification box 3 through the first drain pipe 9. The biological filter layer 10 inside the purification box 3 facilitates the further purification of the wastewater. The purified wastewater inside the purification box 3 can enter the interior of the detection box 4 through the second drain pipe 11. The detection end of the measuring instrument 12 is located in the detection box 4 and can detect whether the water in it meets the quality requirements. Water that meets the requirements can be discharged through the lower water outlet pipe 5. On the contrary, water that does not meet the requirements can be returned to the purification box 3 through the water pump 13 and the return pipe 14 to facilitate the further purification of this part of the water and improve the filtration and purification effect.

[0022] like Figure 1 and Figure 2As shown, a filter assembly 7 is installed inside the filter box 1. The filter assembly 7 includes a first filter screen 701, a second filter screen 702, a rotary motor 703, a rotary shaft 704, a spiral feed blade 707, and a drain pipe 708. The first filter screen 701 and the second filter screen 702 are fixed inside the filter box 1 from top to bottom. The drain pipe 708 is connected to the lower middle part of the second filter screen 702. The rotary motor 703 is installed on the upper middle part of the filter box 1, and the rotary shaft 704 is provided at the bottom of the rotary motor 703. Furthermore, a spiral feed blade 707 is fixed to the outer side below the rotating shaft 704. The cross-sections of the first filter screen 701 and the second filter screen 702 are both V-shaped structures, and the lower middle part of the first filter screen 701 is an open structure. The filter assembly 7 also includes a connecting rod 705 and an anti-clogging scraper 706. Two sets of connecting rods 705 are fixed to both sides of the lower middle part of the rotating shaft 704, and an anti-clogging scraper 706 is fixed to the other side of the connecting rod 705. The anti-clogging scraper 706 has an inclined structure, and the upper and lower sets of anti-clogging scrapers 706 are respectively attached to the first filter screen 701. The filter assembly 7 also includes a control valve 709 on the upper side of the first filter screen 701 and the second filter screen 702. A screw feeder 8 is installed in the middle of the drain pipe 708 and at the bottom of the drain pipe 708, and the drain pipe 708 and the screw feeder 8 are internally interconnected. The first filter screen 701 and the second filter screen 702, with their "V"-shaped structure, facilitate dual filtration of wastewater inside the filter box 1. The rotating motor 703 and the rotating shaft 704 facilitate the rotation of the connecting rod 705 and the anti-clogging scraper 706. The upper and lower anti-clogging scrapers 706 clean the surfaces of the first filter screen 701 and the second filter screen 702 respectively. The lower middle part of the first filter screen 701 has an open structure, which allows the impurities filtered by the first filter screen 701 and the impurities filtered by the second filter screen 702 to enter the interior of the drain pipe 708. The rotation of the rotating shaft 704 can drive the rotation of the screw feeder 707 to facilitate the discharge of waste materials. Finally, the impurities inside the drain pipe 708 can enter the interior of the screw feeder 8 for convenient sewage discharge.

[0023] In summary, as Figures 1-3As shown, this secondary filtration equipment for high-concentration wastewater from aquaculture can initially allow water to enter through the inlet pipe 2. At this point, the first filter screen 701 and the second filter screen 702, with their "V"-shaped structure, perform dual filtration of the wastewater inside the filter box 1. During this process, the rotating motor 703 and rotating shaft 704 can easily drive the connecting rod 705 and the anti-clogging scraper 706 to rotate. This allows the upper and lower sets of anti-clogging scrapers 706 to clean the surfaces of the first filter screen 701 and the second filter screen 702 respectively. The lower middle part of the first filter screen 701 has an open structure, allowing impurities filtered by the first filter screen 701 and the second filter screen 702 to converge and enter the interior of the drain pipe 708. During periodic wastewater discharge, the control valve 709 at the drain pipe 708 can be opened, allowing the rotating shaft 704 to drive the rotation of the spiral feed blades 707 to promote wastewater discharge. The material is fed in, and the impurities inside the final sewage pipe 708 can be concentrated into the screw feeder 8 for convenient sewage discharge. Then, the wastewater filtered inside the filter box 1 can enter the purification box 3 through the first drain pipe 9. At this time, the biological filter layer 10 inside the purification box 3 can further purify the wastewater. Then, the purified wastewater inside the purification box 3 can enter the detection box 4 through the second drain pipe 11. At this time, the detection end of the measuring instrument 12 is located in the detection box 4 and can detect whether the water meets the quality requirements. Water that meets the requirements can be discharged through the lower outlet pipe 5. On the contrary, water that does not meet the requirements can be returned to the purification box 3 through the water pump 13 and the return pipe 14, thereby further purifying this part of the water and improving the filtration and purification effect. This completes the use process of the secondary filtration equipment for high-concentration wastewater from aquaculture.

[0024] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A secondary filtration device for high-concentration wastewater from aquaculture, comprising a filter box (1), a filter assembly (7), and a return pipe (14), characterized in that, A purification box (3) is installed on the lower side of the filter box (1), and a detection box (4) is installed on the lower side of the purification box (3). A filter assembly (7) is installed inside the filter box (1), and the filter assembly (7) includes a first filter screen (701), a second filter screen (702), a rotary motor (703), a rotary shaft (704), a spiral feeder (707), and a drain pipe (708). The first filter screen (701) and the second filter screen (702) are fixed inside the filter box (1) from top to bottom, and the first filter screen (701) and the second filter screen (702) are fixed inside the filter box (1). A drain pipe (708) is connected to the lower middle part of the second filter screen (702). A rotary motor (703) is installed on the upper middle part of the filter box (1). A rotating shaft (704) is provided at the bottom of the rotary motor (703). A spiral feeding blade (707) is fixed on the outer side below the rotating shaft (704). A water pump (13) is installed on the outer side of the detection box (4). A return pipe (14) is connected to the upper side of the water pump (13). The return pipe (14) is connected to the interior of the purification box (3).

2. The secondary filtration equipment for high-concentration aquaculture wastewater according to claim 1, characterized in that, The filter box (1) has water inlet pipes (2) fixed on both sides above, and the test box (4) has a water outlet pipe (5) connected to the lower middle part, and a water outlet valve (6) is installed on the lower side of the water outlet pipe (5).

3. The secondary filtration equipment for high-concentration aquaculture wastewater according to claim 1, characterized in that, The cross-sections of the first filter (701) and the second filter (702) are both V-shaped, and the lower middle part of the first filter (701) is an open structure.

4. The secondary filtration equipment for high-concentration aquaculture wastewater according to claim 1, characterized in that, The filter assembly (7) also includes a connecting rod (705) and an anti-clogging scraper (706). Two sets of connecting rods (705) are fixed on both sides of the lower middle side of the rotating shaft (704), and an anti-clogging scraper (706) is fixed on the other side of the connecting rod (705).

5. The secondary filtration equipment for high-concentration aquaculture wastewater according to claim 4, characterized in that, The anti-clogging scraper (706) has an inclined structure, and the upper and lower sets of the anti-clogging scrapers (706) are respectively attached to the upper side of the first filter screen (701) and the second filter screen (702).

6. The secondary filtration equipment for high-concentration aquaculture wastewater according to claim 1, characterized in that, The filter assembly (7) also includes a control valve (709), which is installed in the middle of the drain pipe (708) and a screw feeder (8) is installed at the bottom of the drain pipe (708), and the drain pipe (708) and the screw feeder (8) are internally connected.

7. The secondary filtration equipment for high-concentration aquaculture wastewater according to claim 1, characterized in that, The filter box (1) and the purification box (3) are connected by a first drain pipe (9), and the purification box (3) is provided with a biological filter layer (10).

8. The secondary filtration equipment for high-concentration aquaculture wastewater according to claim 1, characterized in that, A second drain pipe (11) is connected between the purification box (3) and the detection box (4), and a measuring instrument (12) is installed inside the detection box (4).

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