Bottom blowdown device for aquaculture pond

Abstract

The utility model relates to the technical field of aquaculture ponds, and discloses an aquaculture pond bottom blowdown device which comprises a pond and a sludge dewatering box, the middle of the pond is fixedly connected with an installation ring, the interior of the installation ring is fixedly connected with a grating net, the lower portion of the grating net is fixedly connected with a motor, and the motor is fixedly connected with the sludge dewatering box. The output end of the motor is fixedly connected with a rotating shaft, the lower part of the rotating shaft is fixedly connected with a scraping plate, the bottom of the water tank is fixedly connected with a discharge pipe, the other end of the discharge pipe is fixedly connected to the middle of a sludge dewatering box, and a filter screen is mounted in the middle of the sludge dewatering box. According to the utility model, the motor is arranged to drive the rotating shaft to rotate, the scraping plate also rotates along with the rotating shaft, at the moment, the scraping plate can clean excrement at the bottom of the pool, the excrement is gathered at the front end of the discharge pipe under the action of the scraping plate, and at the moment, the water pump can pump the excrement into the water tank; therefore, the water body is circularly treated.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture pond technology, and in particular to a sewage discharge device for the bottom of aquaculture ponds. Background Technology

[0002] Modern aquaculture is a production activity where humans control the breeding, cultivation, and harvesting of aquatic plants and animals. However, the long-term accumulation of uneaten feed, feces, and organic waste at the bottom of the pond leads to deterioration of water quality, necessitating the use of sewage discharge devices to clean the interior, reduce water pollution, maintain a good aquatic environment, and lower the risk of fish diseases.

[0003] The existing water tank drainage devices have a relatively simple structure, with only one key component in their main structure: the filter element. This filter element is usually installed in a specific location inside the device and connected to the water flow channel of the water tank. As water flows through, the filter element performs its screening and blocking function, separating dirt, debris, and other contaminants from the water.

[0004] Current filter cartridges are typically installed at the bottom of the aquaculture pond to remove impurities without electricity. These filters usually rely on water flow to move floating debris towards the cartridge, but they are less effective at cleaning sediment at the bottom. The sediment at the bottom is often large and difficult to move due to the limited water flow, leading to its accumulation. Over time, this buildup deteriorates water quality and negatively impacts the quality of aquaculture products. Therefore, this paper proposes a bottom-drainage device for aquaculture ponds to address these problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a sewage discharge device for the bottom of aquaculture ponds, which aims to improve the problem that sewage discharge devices in the prior art cannot effectively clean the bottom of the pond.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A wastewater discharge device for aquaculture ponds includes a water tank and a sludge dewatering tank. An installation ring is fixedly connected to the middle of the water tank, and a grid mesh is fixedly connected inside the installation ring. A motor is fixedly connected to the lower part of the grid mesh, and a rotating shaft is fixedly connected to the output end of the motor. A scraper is fixedly connected to the lower part of the rotating shaft. A discharge pipe is fixedly connected to the bottom of the water tank, and the other end of the discharge pipe is fixedly connected to the middle of the sludge dewatering tank. A filter screen is installed in the middle of the sludge dewatering tank, and a water supply pipe is fixedly connected to the middle of the sludge dewatering tank. A water pump is fixedly connected to the middle of the water supply pipe.

[0008] As a further description of the above technical solution:

[0009] The filter screen has a slot in the middle, the sludge dewatering tank is fixedly connected to the outside of the outer shell, a pull rod is slidably connected to the middle of the outer shell, and a spring is sleeved on the outer periphery of the pull rod.

[0010] As a further description of the above technical solution:

[0011] The pull rod is externally fixed with a retaining ring.

[0012] As a further description of the above technical solution:

[0013] The bottom of the sludge dewatering tank is fixedly connected to a sludge discharge pipe, and a valve is fixedly connected to the middle of the sludge discharge pipe.

[0014] As a further description of the above technical solution:

[0015] A sealing gasket is fixedly connected to the outside of the filter screen, and the sealing gasket abuts against the sludge dewatering tank.

[0016] As a further description of the above technical solution:

[0017] A filter element is fixedly connected to the upper part of the grid.

[0018] As a further description of the above technical solution:

[0019] The bottom of the sludge dewatering tank is fixedly connected to a base, which is bolted to the outside of the water tank.

[0020] As a further description of the above technical solution:

[0021] The bottom of the pool is fixedly connected to four support legs at each of the four corners.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, an electric motor is used to drive the rotating shaft to rotate, and the scraper also rotates with the rotating shaft. At this time, the scraper will clean the excrement at the bottom of the pool. The excrement is collected at the front end of the discharge pipe under the action of the scraper. Then the water pump will draw the excrement into the water tank, thus circulating the water.

[0024] 2. In this utility model, the filter screen can be quickly pulled out for cleaning by pulling the lever outward. After cleaning, the filter screen can be reinserted and the lever can be released. The filter screen can then be re-engaged under the action of the spring, thus improving the cleaning speed of the filter screen. The operation is simple and the use is very convenient. Attached Figure Description

[0025] Figure 1This is a three-dimensional schematic diagram of a sewage discharge device at the bottom of an aquaculture pond proposed in this utility model;

[0026] Figure 2 This is a cross-sectional structural diagram of the sludge dewatering tank of a sewage discharge device at the bottom of an aquaculture pond proposed in this utility model.

[0027] Figure 3 This is a schematic diagram of the water pump structure of a sewage discharge device at the bottom of an aquaculture pond proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the structure of the filter screen of the sewage discharge device at the bottom of an aquaculture pond proposed in this utility model;

[0029] Figure 5 This is a schematic diagram of the structure of the scraper of the sewage discharge device at the bottom of an aquaculture pond proposed in this utility model;

[0030] Figure 6 This is a cross-sectional structural diagram of the outer shell of a sewage discharge device for aquaculture ponds proposed in this utility model;

[0031] Figure 7 This is a schematic diagram of the structure of the filter screen of the sewage discharge device at the bottom of an aquaculture pond proposed in this utility model. 。

[0032] Legend:

[0033] 1. Water tank; 2. Filter element; 3. Support leg; 4. Sludge dewatering tank; 5. Water pump; 6. Discharge pipe; 7. Base; 8. Water supply pipe; 9. Sludge discharge pipe; 10. Filter screen; 11. Outer shell; 12. Grating; 13. Mounting ring; 14. Motor; 15. Shaft; 16. Scraper; 17. Bolt; 18. Tie rod; 19. Spring; 20. Retaining ring; 21. Slot; 22. Sealing gasket. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Reference Figures 1-7This utility model provides an embodiment of a sewage discharge device for aquaculture ponds, comprising a pond 1 and a sludge dewatering tank 4. An installation ring 13 is fixedly connected to the middle of the pond 1, and a grid mesh 12 is fixedly connected inside the installation ring 13. The grid mesh 12 allows feed, feces, etc., to fall to the bottom of the pond while preventing farmed aquatic organisms from entering the bottom space. A motor 14 is fixedly connected to the lower part of the grid mesh 12, and a rotating shaft 15 is fixedly connected to the output end of the motor 14. A scraper 16 is fixedly connected to the lower part of the rotating shaft 15. When the motor 14 generates electricity and rotates, it drives the rotating shaft 15 and the scraper 16 to work together. Through direct contact between the scraper 16 and the bottom surface of the pond, these settled impurities are scraped up, effectively keeping the bottom of the pond clean. Simultaneously, the scraper 16 is arranged at an angle, and when the scraper 16 rotates, it can scrape the sludge towards the center for easy discharge. A discharge pipe 6 is fixedly connected to the bottom of the water tank 1. The other end of the discharge pipe 6 is fixedly connected to the middle of the sludge dewatering tank 4. When the scraper 16 scrapes up impurities, tiny impurities will be suspended in the water. The impurities scraped by the scraper 16 move towards the inlet end of the discharge pipe 6 and flow into the sludge dewatering tank 4 for filtration. A filter screen 10 is installed in the middle of the sludge dewatering tank 4, and a water supply pipe 8 is fixedly connected to the middle of the sludge dewatering tank 4. A water pump 5 is fixedly connected to the middle of the water supply pipe 8. The water pump 5 works to create negative pressure in the sludge dewatering tank 4 to achieve water circulation. When impurities flow into the sludge dewatering tank 4, the filter screen 10 in the sludge dewatering tank 4 can intercept solid particles in the sludge, preventing these particles from entering the subsequent water supply pipe 8.

[0036] Reference Figure 1 and Figure 6 , Figure 7 The filter screen 10 has a slot 21 in the middle. A housing 11 is fixedly connected to the outside of the sludge dewatering tank 4. A pull rod 18 is slidably connected to the middle of the housing 11. A spring 19 is fitted around the outer periphery of the pull rod 18. A retaining ring 20 is fixedly connected to the outside of the pull rod 18. To clean the filter screen 10, simply pull the pull rod 18 to disengage it from the slot 21, allowing the filter screen 10 to be pulled out. After cleaning or replacing the filter screen 10, a new filter screen 10 is reinserted, aligning the pull rod 18 with the slot 21. Then, under the action of the spring 19 and the retaining ring 20, it is reinserted into the slot 21, thus securing the filter screen 10. A sealing gasket 22 is fixedly connected to the outside of the filter screen 10, abutting against the sludge dewatering tank 4. The sealing gasket 22 increases the seal between the filter screen 10 and the sludge dewatering tank 4, ensuring the normal operation of the sewage discharge equipment. The bottom of the sludge dewatering tank 4 is fixedly connected to a sludge discharge pipe 9, and a valve is fixedly connected to the middle of the sludge discharge pipe 9. When the filter screen in the sludge dewatering tank 4 has been used for a long time, the valve is opened to allow impurities in the sludge dewatering tank 4 to be discharged through the discharge pipe 6.

[0037] Reference Figure 1 , Figure 4 and Figure 5 A filter element 2 is fixedly connected to the upper part of the grid 12. The filter element 2 can initially intercept floating objects in the water to improve the filtration effect. A base 7 is fixedly connected to the bottom of the sludge dewatering tank 4. The base 7 is installed on the outside of the water tank 1 by bolts 17. The base 7 provides solid support for the sludge dewatering tank 4, ensuring the stability and safety of the equipment. Support legs 3 are fixedly connected to the four corners of the bottom of the water tank 1. The support legs 3 stabilize the water tank 1.

[0038] Working Principle: Impurities generated during aquaculture pass through the grid 12 and accumulate at the bottom of the pool 1. When cleaning is needed, the user can first turn on the motor 14 to rotate the shaft 15. The rotation of the shaft 15, driven by the motor 14, will drive the scraper 16 to rotate, thus cleaning the excrement and sludge at the bottom of the pool 1. The excrement and sludge are collected at the front end of the discharge pipe 6 by the scraper 16. The water pump 5 pumps the waste, uneaten feed, and feces from the pool bottom out of the aquaculture pool and into the sludge dewatering tank 4 through the discharge pipe 6. The sludge dewatering tank 4 is equipped with a filter screen 10 to intercept waste in the water. The water pump 5 pushes the water to the water supply pipe 8, flowing into the pool 1, achieving recycling. Additionally, a sludge discharge port 9 is provided at the bottom of the sludge dewatering tank 4 for easy cleaning, thus serving as a sewage discharge function.

[0039] When the filter screen 10 needs to be cleaned, pull the lever 18 outward. Under the action of the spring 19 and the retaining ring 20, the filter screen 10 can be pulled out for cleaning. After cleaning, reinsert the filter screen 10 and make the lever 18 and the slot 21 re-engage. This completes the replacement of the filter screen 10. The operation is simple and very convenient.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wastewater discharge device for aquaculture ponds, comprising a pond (1) and a sludge dewatering tank (4), characterized in that: A mounting ring (13) is fixedly connected to the middle of the water tank (1). A grid mesh (12) is fixedly connected inside the mounting ring (13). A motor (14) is fixedly connected to the lower part of the grid mesh (12). A rotating shaft (15) is fixedly connected to the output end of the motor (14). A scraper (16) is fixedly connected to the lower part of the rotating shaft (15). A discharge pipe (6) is fixedly connected to the bottom of the water tank (1). The other end of the discharge pipe (6) is fixedly connected to the middle of the sludge dewatering tank (4). A filter screen (10) is installed in the middle of the sludge dewatering tank (4). A water supply pipe (8) is fixedly connected to the middle of the sludge dewatering tank (4). A water pump (5) is fixedly connected to the middle of the water supply pipe (8).

2. The aquaculture pond bottom sewage discharge device according to claim 1, characterized in that: The filter screen (10) has a slot (21) in the middle. The sludge dewatering tank (4) is fixedly connected to the outside of the outer shell (11). A pull rod (18) is slidably connected to the middle of the outer shell (11). A spring (19) is sleeved on the outer periphery of the pull rod (18).

3. The aquaculture pond bottom sewage discharge device according to claim 2, characterized in that: The pull rod (18) is externally fixedly connected with a retaining ring (20).

4. The aquaculture pond bottom sewage discharge device according to claim 1, characterized in that: The bottom of the sludge dewatering tank (4) is fixedly connected to a sludge discharge pipe (9), and a valve is fixedly connected to the middle of the sludge discharge pipe (9).

5. The aquaculture pond bottom sewage discharge device according to claim 1, characterized in that: A sealing gasket (22) is fixedly connected to the outside of the filter screen (10), and the sealing gasket (22) abuts against the sludge dewatering tank (4).

6. The aquaculture pond bottom sewage discharge device according to claim 1, characterized in that: A filter element (2) is fixedly connected to the upper part of the grid (12).

7. The aquaculture pond bottom sewage discharge device according to claim 1, characterized in that: The bottom of the sludge dewatering tank (4) is fixedly connected to a base (7), which is installed on the outside of the water tank (1) by bolts (17).

8. The aquaculture pond bottom sewage discharge device according to claim 1, characterized in that: The bottom of the pool (1) is fixedly connected to four corners of the support legs (3).

Images