Aquaculture tail water circulation treatment device

Abstract

The utility model discloses a tail water circulation treatment device for aquaculture, and belongs to the technical field of tail water circulation treatment. The aquaculture tail water circulation treatment device comprises a settling tank, a discharging port is formed in the settling tank, a filter screen is fixedly connected between the inner wall of the settling tank and the discharging port, the aquaculture tail water circulation treatment device further comprises a blade rotationally installed in the settling tank through a rotating shaft, and a driving part for driving the blade to rotate is arranged on the settling tank; the push plate is slidably mounted in the settling tank, the bottom of the push plate is in contact with the top of the filter screen, the settling tank is provided with a moving part for driving the push plate to be close to the discharge port, and when the blade rotates, the moving part drives the push plate to be close to the discharge port; the blade is driven by the driving part to rotate, large fixed impurities in tail water are minced by the blade, and the push plate is driven by the connecting part to reciprocate to discharge the impurities falling on the filter screen from the discharge port, so that blockage is avoided, and the treatment efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater recycling treatment technology, and in particular to a wastewater recycling treatment device for aquaculture. Background Technology

[0002] Due to increasing market demand, my country's aquaculture industry has gradually moved towards intensive development, with the scale of intensive farming methods such as cage culture, net enclosures, and factory farming expanding year by year. However, most factory aquaculture bases in my country currently have outdated facilities and equipment, with low levels of modernization, standardization, and automation. Moreover, they lack wastewater treatment facilities or, even after renovation, fail to meet discharge standards. This results in most of the pollutants generated from aquaculture being directly discharged into the environment. Excrement and feed contain biotoxic substances such as organophosphates and ammonia nitrogen. When large amounts of wastewater containing undigested feed, excrement, and antibiotics are directly discharged into water bodies or exceed the water bodies' carrying capacity, it will lead to the deterioration of the aquatic environment, not only having a huge negative impact on the environment but also restricting the sustainable development of the aquaculture industry.

[0003] In existing aquaculture, the wastewater is treated and recycled. The first step in the treatment is to separate solid debris from the wastewater through filtration and sedimentation. Some of these solid debris are large and difficult to remove, so they accumulate on the filter screen, causing blockage and affecting the treatment efficiency. Utility Model Content

[0004] The purpose of this invention is to solve the problem that large-volume debris in fixed waste is difficult to clean out, accumulates on the filter screen, causes blockage, and affects the treatment efficiency. Therefore, an aquaculture wastewater recycling treatment device is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A wastewater recycling treatment device for aquaculture includes a sedimentation tank with a discharge port. A filter screen is fixedly connected between the inner wall of the sedimentation tank and the discharge port. The device also includes: a blade rotatably mounted inside the sedimentation tank via a rotating shaft, wherein the sedimentation tank is provided with a drive unit for driving the blade to rotate; and a push plate slidably mounted inside the sedimentation tank, with the bottom of the push plate contacting the top of the filter screen. The sedimentation tank is provided with a moving part that drives the push plate closer to the discharge port; when the blade rotates, the moving part drives the push plate closer to the discharge port.

[0007] In order to drive the blades to rotate and shred larger debris, preferably, the drive unit includes a motor fixedly connected to the sedimentation tank, and the blades are provided in two sets, one of which is fixedly connected to the output end of the motor, and transmission gears are fixedly connected to the two shafts, and the two transmission gears are meshed together.

[0008] To remove the separated fixed debris, preferably, the moving part includes a lead screw rotatably mounted on the sedimentation tank, a limit rod fixedly connected between the inner walls of the sedimentation tank, two sliders fixedly connected to the top of the push plate, one of which is threadedly connected to the lead screw, and the other slider is slidably connected to the limit rod, a drive shaft rotatably mounted on the sedimentation tank, and a first bevel gear fixedly connected to both the drive shaft and one of the rotating shafts, the two first bevel gears meshing together, and a first belt drivingly connecting the drive shaft and the lead screw.

[0009] In order to quickly remove substances such as ammonia nitrogen and phosphorus from water through chemical reaction, preferably, a stirring shaft is rotatably installed on the sedimentation tank, and stirring blades are fixedly connected to the stirring shaft.

[0010] In order to quickly remove substances such as ammonia nitrogen and phosphorus from the water through chemical reaction, a connecting shaft is rotatably installed on the sedimentation tank. A second bevel gear is fixedly connected to both the connecting shaft and the stirring shaft. The two second bevel gears are meshed together. A second belt is connected between the connecting shaft and one of the rotating shafts for transmission.

[0011] For better shredding, preferably, the two sets of blades are arranged alternately, with each set containing several blades, and the blades are equidistant from each other.

[0012] Compared with the prior art, this utility model provides an aquaculture wastewater recycling treatment device, which has the following beneficial effects:

[0013] 1. This aquaculture wastewater recycling treatment device uses a drive unit to rotate blades, which shred larger fixed debris in the wastewater. Then, the connecting part drives a push plate to move back and forth, discharging the debris that falls onto the filter screen from the discharge port. This makes it easier to clean the debris, avoids clogging, and improves the treatment efficiency.

[0014] 2. This aquaculture wastewater recycling treatment device, driven by the second belt, connecting shaft, second bevel gear and stirring shaft, drives the stirring blades to rotate, so that lime can quickly react chemically with substances such as phosphorus and ammonia nitrogen in the water, removing these substances and further improving the treatment effect. Attached Figure Description

[0015] Figure 1 A schematic diagram of the isometric structure of an aquaculture wastewater recycling treatment device proposed in this utility model. Figure 1 ;

[0016] Figure 2 A schematic diagram of the isometric structure of an aquaculture wastewater recycling treatment device proposed in this utility model. Figure 2 ;

[0017] Figure 3 A schematic diagram of the isometric structure of an aquaculture wastewater recycling treatment device proposed in this utility model. Figure 3 ;

[0018] Figure 4 This is a cross-sectional structural diagram of the sedimentation tank of an aquaculture wastewater recycling treatment device proposed in this utility model.

[0019] In the diagram: 1. Sedimentation tank; 201. Blade; 202. Rotating shaft; 203. Motor; 204. Transmission gear; 301. Push plate; 302. Lead screw; 303. Limiting rod; 304. Sliding block; 305. Transmission shaft; 306. First bevel gear; 307. First belt; 4. Discharge port; 5. Filter screen; 6. Stirring shaft; 7. Stirring blades; 8. Connecting shaft; 9. Second bevel gear; 10. Second belt. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] Example:

[0023] Reference Figures 1-4This utility model provides an aquaculture wastewater recycling treatment device, including a sedimentation tank 1 with a discharge port 4. A filter screen 5 is fixedly connected between the inner wall of the sedimentation tank 1 and the discharge port 4. The device also includes: a blade 201, rotatably mounted inside the sedimentation tank 1 via a rotating shaft 202, wherein the sedimentation tank 1 is provided with a drive unit for driving the blade 201 to rotate; and a push plate 301, slidably mounted inside the sedimentation tank 1, with its bottom contacting the top of the filter screen 5. The sedimentation tank 1 is provided with a moving part that drives the push plate 301 closer to the discharge port 4. When the blade 201 rotates, the moving part drives the push plate 301 closer to the discharge port 4, allowing aquaculture wastewater to be pumped into the sedimentation tank 1 via an external pumping device. The sedimentation tank 1 is provided with a drain pipe, and a control valve is provided on the drain pipe. Two discharge ports 4 are provided to facilitate the push plate 301 reciprocatingly pushing debris out of the discharge ports 4. The length and height of the push plate 301 are the same as the length and height of the discharge ports 4.

[0024] Specifically, the drive unit drives the blade 201 to rotate, which shreds larger fixed debris in the tailwater. Then, the connecting part drives the push plate 301 to move back and forth, discharging the debris that falls on the filter screen 5 from the discharge port 4. This makes it easier to clean the debris, avoids clogging, and improves the processing efficiency.

[0025] The drive unit includes a motor 203 fixedly connected to the sedimentation tank 1. Two sets of blades 201 are provided. One of the rotating shafts 202 is fixedly connected to the output end of the motor 203. Transmission gears 204 are fixedly connected to the two rotating shafts 202. The two transmission gears 204 are meshed together. The two sets of blades 201 are staggered. Each set of blades 201 has a number of blades. The number of blades 201 is equidistant. The number of blades 201 in each set is 18-22, preferably 20. By setting the two sets of blades 201 to be staggered, the blades 201 are more dispersed and the shredding effect is better. The motor 203 is electrically connected to an external power source.

[0026] Specifically, the motor 203 is started, and its output end drives the shaft 202 connected to it to rotate. Under the transmission of the transmission gear 204 and the shaft 202, the two sets of blades 201 are reversed.

[0027] The moving part includes a lead screw 302 rotatably mounted on the sedimentation tank 1, a limit rod 303 fixedly connected between the inner walls of the sedimentation tank 1, and two sliders 304 fixedly connected to the top of the push plate 301. One slider 304 is threadedly connected to the lead screw 302, and the other slider 304 is slidably connected to the limit rod 303. A drive shaft 305 is rotatably mounted on the sedimentation tank 1. A first bevel gear 306 is fixedly connected to both the drive shaft 305 and one of the rotating shafts 202. The two first bevel gears 306 are meshed. A first belt 307 is connected between the drive shaft 305 and the lead screw 302.

[0028] Specifically, under the transmission of the first bevel gear 306, the drive shaft 305 and the first belt 307, the lead screw 302 is driven to rotate. Under the restriction of the limit rod 303, the two sliders 304 drive the push plate 301 to move back and forth, pushing the debris on the filter screen 5 to be discharged from the two discharge ports 4.

[0029] A stirring shaft 6 is rotatably mounted on the sedimentation tank 1, and stirring blades 7 are fixedly connected to the stirring shaft 6. A connecting shaft 8 is rotatably mounted on the sedimentation tank 1, and a second bevel gear 9 is fixedly connected to both the connecting shaft 8 and the stirring shaft 6. The two second bevel gears 9 are meshed together. A second belt 10 is connected between the connecting shaft 8 and one of the rotating shafts 202. When lime is added into the sedimentation tank 1, it can react chemically with substances such as phosphorus and ammonia nitrogen in the water, thereby removing these substances.

[0030] Specifically, under the transmission of the second belt 10, connecting shaft 8, second bevel gear 9 and stirring shaft 6, the stirring blades 7 are driven to rotate, so that the lime can quickly react chemically with substances such as phosphorus and ammonia nitrogen in the water, remove these substances, and further improve the treatment effect.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A wastewater recycling treatment device for aquaculture, comprising a sedimentation tank (1), wherein a discharge port (4) is provided on the sedimentation tank (1), and a filter screen (5) is fixedly connected between the inner wall of the sedimentation tank (1) and the discharge port (4), characterized in that, Also includes: The blade (201) is rotatably mounted inside the sedimentation tank (1) via a rotating shaft (202). The sedimentation tank (1) is provided with a drive unit for driving the blade (201) to rotate; A push plate (301) is slidably installed inside the sedimentation tank (1), with the bottom of the push plate (301) in contact with the top of the filter screen (5). The sedimentation tank (1) is provided with a moving part that drives the push plate (301) to approach the discharge port (4). When the blade (201) rotates, the moving part drives the push plate (301) to approach the discharge port (4).

2. The aquaculture wastewater recycling treatment device according to claim 1, characterized in that, The drive unit includes a motor (203) fixedly connected to the sedimentation tank (1). The blade (201) is provided in two sets, one of which is a rotating shaft (202) fixedly connected to the output end of the motor (203). The two rotating shafts (202) are fixedly connected to transmission gears (204), and the two transmission gears (204) are meshed together.

3. The aquaculture wastewater recycling treatment device according to claim 1, characterized in that, The moving part includes a lead screw (302) rotatably mounted on the sedimentation tank (1), a limit rod (303) fixedly connected between the inner walls of the sedimentation tank (1), and two sliders (304) fixedly connected to the top of the push plate (301). One of the sliders (304) is threadedly connected to the lead screw (302), and the other slider (304) is slidably connected to the limiting rod (303). A drive shaft (305) is rotatably mounted on the sedimentation tank (1). A first bevel gear (306) is fixedly connected to both the drive shaft (305) and one of the rotating shafts (202). The two first bevel gears (306) are meshed together. A first belt (307) is connected between the drive shaft (305) and the lead screw (302).

4. The aquaculture wastewater recycling treatment device according to claim 1, characterized in that, A stirring shaft (6) is rotatably mounted on the sedimentation tank (1), and stirring blades (7) are fixedly connected to the stirring shaft (6).

5. The aquaculture wastewater recycling treatment device according to claim 4, characterized in that, A connecting shaft (8) is rotatably mounted on the sedimentation tank (1). A second bevel gear (9) is fixedly connected to both the connecting shaft (8) and the stirring shaft (6). The two second bevel gears (9) are meshed together. A second belt (10) is connected between the connecting shaft (8) and one of the rotating shafts (202).

6. The aquaculture wastewater recycling treatment device according to claim 2, characterized in that, The two sets of blades (201) are arranged alternately, and each set of blades (201) has a number of blades (201), and the number of blades (201) are arranged at equal intervals.

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