Wastewater filtering device for fish culture

Abstract

The utility model relates to the technical field of fish culture, and discloses a wastewater filtering device for fish culture, which comprises a filtering box, a filter screen is assembled in the filtering box, and a connecting plate connected with the filter screen is fixedly connected to the rear side wall in the filtering box. A spiral conveyor located on the upper side of the connecting plate is assembled in the filtering box, a one-way threaded rod is rotationally connected to the interior of the filtering box, and a motor with an output shaft fixedly connected with the one-way threaded rod is fixedly connected to the rear side of the filtering box; and the outer side of the one-way threaded rod is in threaded connection with a scraping plate abutting against the filter screen, the interior of the filter box is slidably connected with a drawer located on the lower side of the filter screen, and filter holes are formed in the drawer. The wastewater filtering device for fish culture has the advantages that filter residues on the surface of the filter screen can be scraped without taking down the filter screen, and the scraped filter residues are conveyed out of the filter tank.

Description

Technical Field

[0001] The utility model relates to the technical field of fish breeding, in particular to a wastewater filtering device for fish breeding. Background Art

[0002] With the continuous development of aquaculture, aquaculture has become increasingly mechanized. While automatic feeding reduces the workload of workers, it also produces a lot of feed deposits inside the breeding pond. There are too many residual feed and feces in the water inside the breeding pond, which affects the purity of the breeding water. Organic matter cannot be completely decomposed, causing water pollution and making it impossible for fish to survive.

[0003] When the existing wastewater filtering device for fish farming filters the aquaculture wastewater, the filter residue filtered out of the wastewater needs to be removed from the filter plate for cleaning in order to separate the filter residue from the filter screen, and the filter screen needs to be cleaned in time to ensure the filtering effect of the wastewater. Removing the filter screen for cleaning is rather cumbersome, resulting in low wastewater filtration efficiency, and cleaning is time-consuming and laborious. Therefore, a wastewater filtering device for fish farming is proposed to solve the above-mentioned problems. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the shortcomings of the prior art, the utility model provides a wastewater filtering device for fish farming, which has the advantages of not needing to remove the filter screen to scrape off the filter residue on the filter screen surface, thereby solving the problem that the filter screen needs to be removed and the filter residue needs to be cleaned to ensure the filtering effect, which is rather cumbersome and results in low wastewater filtration efficiency.

[0006] (II) Technical solution

[0007] The utility model provides a technical solution to the above-mentioned technical problems as follows: a wastewater filtering device for fish farming, comprising a filter box, a filter screen is installed inside the filter box, a connecting plate connected to the filter screen is fixedly connected to the inner rear side wall of the filter box, a screw conveyor located on the upper side of the connecting plate is installed inside the filter box, a one-way threaded rod is rotatably connected inside the filter box, a motor whose output shaft is fixedly connected to the one-way threaded rod is fixedly connected to the rear side of the filter box, a scraper that conflicts with the filter screen is threadedly connected to the outer side of the one-way threaded rod, and a drawer located on the lower side of the filter screen is slidably connected inside the filter box.

[0008] The beneficial effects of the utility model are:

[0009] The wastewater filtering device for fish farming has the advantages of not needing to remove the filter screen to scrape off the filter residue on the surface of the filter screen, and transporting the scraped filter residue out of the filter box.

[0010] On the basis of the above technical solution, the present invention can also be improved as follows.

[0011] Furthermore, a filter hole is provided inside the drawer, and a sealing gasket in contact with the filter box is provided on the outside of the drawer.

[0012] The beneficial effect of adopting the above further solution is to prevent waste water from entering the interior of the drawer and being unable to be filtered, and to prevent waste water from flowing out through the gap between the drawer and the filter box.

[0013] Furthermore, a slide groove is provided inside the filter box, and a sliding block matched with the slide groove is provided on the outer side of the scraper.

[0014] Furthermore, a connecting pipe is fixedly connected to the top of the filter box, a feed hopper located on the upper side of the filter box is fixedly connected to the top of the connecting pipe, and a diversion pipe is fixedly connected to the bottom of the connecting pipe.

[0015] The beneficial effect of adopting the above further scheme is that the wastewater is diverted for treatment to prevent the wastewater from having excessive impact force, thereby preventing the surface of the filter from being damaged and reducing the service life of the filter.

[0016] Furthermore, a support column is fixedly connected to the bottom of the filter box, a support plate is assembled on the bottom of the support column, and a pull rod is fixedly connected to the left side of the support plate.

[0017] Furthermore, a water outlet pipe is fixedly connected to the right side of the filter box, a valve is arranged inside the water outlet pipe, a universal wheel is fixedly connected to the bottom of the support plate, and a controller is fixedly connected to the front side of the filter box.

[0018] The beneficial effect of adopting the above further solution is that it is easy to control the discharge of filtered water from the filter box, making the movement of the filter box more labor-saving and facilitating the control of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the left side structure of the utility model;

[0021] Figure 3 It is a cross-sectional view of the utility model;

[0022] Figure 4 This is a schematic diagram of the filter structure of the utility model.

[0023] In the figure: 1. filter box; 2. filter screen; 3. connecting plate; 4. screw conveyor; 5. one-way threaded rod; 6. motor; 7. scraper; 8. drawer; 9. slide; 10. slider; 11. connecting pipe; 12. feed hopper; 13. diverter pipe; 14. support column; 15. support plate; 16. pull rod; 17. water outlet pipe; 18. valve; 19. universal wheel; 20. controller. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the embodiment, Figure 1-4 A wastewater filtering device for fish farming is provided. The utility model comprises a filter box 1, wherein a filter screen 2 is assembled inside the filter box 1, a connecting plate 3 connected to the filter screen 2 is fixedly connected to the inner rear side wall of the filter box 1, a screw conveyor 4 located on the upper side of the connecting plate 3 is assembled inside the filter box 1, a one-way threaded rod 5 is rotatably connected inside the filter box 1, a motor 6 whose output shaft is fixedly connected to the one-way threaded rod 5 is fixedly connected to the rear side of the filter box 1, a scraper 7 that conflicts with the filter screen 2 is threadedly connected to the outer side of the one-way threaded rod 5, and a drawer 8 located on the lower side of the filter screen 2 is slidably connected inside the filter box 1.

[0026] The waste water is allowed to flow into the surface of the filter screen 2, and the filter residue filtered through the filter screen 2 will remain on the surface of the filter screen 2. The motor 6 is started, and the motor 6 drives the one-way threaded rod 5 to rotate. The one-way threaded rod 5 drives the scraper 7 to slide on the top of the filter screen 2, and the filter residue on the surface of the filter screen 2 is scraped to the lower side of the screw conveyor 4. The screw conveyor 4 conveys the filter residue to the inside of the drawer 8. The drawer 8 is taken out and the filter residue inside the drawer 8 is cleaned.

[0027] Reference Figure 1 A filter hole is provided inside the drawer 8 , and a sealing gasket in contact with the filter box 1 is provided on the outside of the drawer 8 .

[0028] In this embodiment, waste water is prevented from accumulating inside the drawer 8 to affect the conveyance of waste residues into the drawer 8 , and the sealing gasket prevents waste water from flowing out through the gap between the drawer 8 and the filter box 1 to affect the filtration of waste water.

[0029] Reference Figure 3 and Figure 4 A chute 9 is provided inside the filter box 1 , and a slider 10 matched with the chute 9 is provided on the outer side of the scraper 7 .

[0030] In this embodiment, when the scraper 7 slides on the top of the filter screen 2, it will not rotate along with the rotation of the one-way threaded rod 5, so the stability of the scraper 7 when scraping the filter residue is maintained.

[0031] Reference Figure 3 A connecting pipe 11 is fixedly connected to the top of the filter box 1 , a feed hopper 12 located on the upper side of the filter box 1 is fixedly connected to the top of the connecting pipe 11 , and a diversion pipe 13 is fixedly connected to the bottom of the connecting pipe 11 .

[0032] In this embodiment, the wastewater is introduced into the feed hopper 12, the wastewater enters the interior of the connecting pipe 11 through the feed hopper 12, and then enters the diversion pipe 13, and flows on the top of the filter screen 2 through the diversion pipe 13 to prevent the wastewater from being damaged by excessive impact force when pouring into the filter box 1.

[0033] Reference Figure 1 A support column 14 is fixedly connected to the bottom of the filter box 1 , a support plate 15 is assembled at the bottom of the support column 14 , and a pull rod 16 is fixedly connected to the left side of the support plate 15 .

[0034] In this embodiment, the support column 14 supports the bottom of the filter box 1 to prevent the bottom of the filter box 1 from being in contact with water and causing damage. The pull rod 16 is convenient for pulling the filter box 1 to move the position of the filter box 1.

[0035] Reference Figure 1 and Figure 4 A water outlet pipe 17 is fixedly connected to the right side of the filter box 1, a valve 18 is arranged inside the water outlet pipe 17, a universal wheel 19 is fixedly connected to the bottom of the support plate 15, and a controller 20 is fixedly connected to the front side of the filter box 1.

[0036] In this embodiment, the filtered water is discharged from the filter box 1 through the control of the valve 18 , and the universal wheel 19 makes the movement of the device more labor-saving. The device is controlled by the controller 20 .

[0037] Working principle:

[0038] First, the wastewater is injected into the filter box 1 through the feed hopper 12, and then injected into the surface of the filter screen 2 through the diverter pipe 13. After the filter screen 2 filters the wastewater, the scraper 7 scrapes the residue on the surface of the filter screen 2 to the bottom of the screw conveyor 4.

[0039] Then: the screw conveyor 4 conveys the filter residue to the drawer 8, and the drawer 8 is pulled out to clean the filter residue, and the valve 18 is opened to convey the filtered water out of the filter box 1. By pulling the pull rod 16 and the universal wheel 19, the position movement of the device is more labor-saving.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wastewater filtration device for fish farming, comprising a filter box (1), characterized in that: The filter box (1) is equipped with a filter screen (2) inside, a connecting plate (3) connected to the filter screen (2) is fixedly connected to the inner rear side wall of the filter box (1), a screw conveyor (4) located on the upper side of the connecting plate (3) is equipped inside the filter box (1), a one-way threaded rod (5) is rotatably connected inside the filter box (1), a motor (6) whose output shaft is fixedly connected to the one-way threaded rod (5) is fixedly connected to the rear side of the filter box (1), a scraper (7) that contacts the filter screen (2) is threadedly connected to the outer side of the one-way threaded rod (5), and a drawer (8) located on the lower side of the filter screen (2) is slidably connected inside the filter box (1).

2. A fish farming wastewater filtration device according to claim 1, characterized in that: A filter hole is provided inside the drawer (8), and a sealing gasket in contact with the filter box (1) is provided on the outside of the drawer (8).

3. The fish farming wastewater filtering device according to claim 1, characterized in that: A slide groove (9) is provided inside the filter box (1), and a sliding block (10) adapted to the slide groove (9) is provided on the outside of the scraper (7).

4. The fish farming wastewater filtering device according to claim 1, characterized in that: The top of the filter box (1) is fixedly connected to a connecting pipe (11), the top of the connecting pipe (11) is fixedly connected to a feed hopper (12) located on the upper side of the filter box (1), and the bottom of the connecting pipe (11) is fixedly connected to a diversion pipe (13).

5. The fish farming wastewater filtering device according to claim 1, characterized in that: The bottom of the filter box (1) is fixedly connected to a support column (14), the bottom of the support column (14) is equipped with a support plate (15), and the left side of the support plate (15) is fixedly connected to a pull rod (16).

6. A fish farming wastewater filtering device according to claim 5, characterized in that: The right side of the filter box (1) is fixedly connected to a water outlet pipe (17), a valve (18) is provided inside the water outlet pipe (17), the bottom of the support plate (15) is fixedly connected to a universal wheel (19), and the front side of the filter box (1) is fixedly connected to a controller (20).

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