Tail water treatment device for aquaculture pond

Abstract

The utility model relates to the technical field of agricultural machinery, and discloses an aquaculture pond tail water treatment device which comprises a filter box, the left side of the filter box is fixedly communicated with a water inlet pipe, a coarse filter screen is arranged in the filter box, a fine filter screen is arranged in the filter box, and the upper side of the filter box is fixedly connected with a fixing frame. A fixed shaft is rotatably connected to the interior of the fixed frame, a cleaning brush sleeves the outer side of the fixed shaft, a collecting tank is arranged on the lower side of the cleaning brush, a guide plate is fixedly connected to the collecting tank, a water outlet pipe is fixedly communicated with the right side of the filter box, and a biological filter is fixedly communicated with one side, far away from the filter box, of the water outlet pipe. The filter screen is pulled to drive the cleaning brush to rotate for cleaning, operation is simple and convenient, tedious work and labor intensity of manual cleaning of the filter screen are reduced, meanwhile, the filter screen can be cleaned in time, the efficient filtering performance of the filter screen can be maintained, and the service life of the filter screen is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of agricultural machinery, especially to the aquaculture pond tail water treatment device. BACKGROUND

[0002] Aquaculture species are various, and the aquaculture modes are various, and most of the species have problems such as too high breeding density and extensive breeding mode, which results in that a large amount of residual bait, excrement and other nitrogen and phosphorus pollutants of aquatic animals are directly discharged into natural water without treatment, causing the eutrophication of water around the breeding area to be increasingly intensified. According to the previous investigation results, the tail water of most aquaculture ponds belongs to inferior V-class water, which causes great pressure on the ecological environment and becomes a limiting factor restricting the healthy and sustainable development of freshwater aquaculture industry.

[0003] Most of the conventional aquaculture pond tail water treatment devices are to filter the tail water through a simple filter screen first, and the large-particle impurities are intercepted, and then flow into a sedimentation tank, and part of the suspended solids are precipitated by gravity. Some devices also have a biological treatment zone, which utilizes natural attached microorganisms to decompose organic matter in the tail water.

[0004] However, relying only on a simple filter screen cannot effectively intercept small particles and colloidal substances, which greatly reduces the purification effect of the tail water, and it is difficult to meet the increasingly strict environmental protection discharge standards. In addition, the growth environment of microorganisms cannot be accurately controlled, the water temperature in the biological filter tank is easily affected by the external environment and fluctuates, and it is difficult to maintain a stable temperature range suitable for the growth of microorganisms, resulting in reduced microbial activity and weakened decomposition of organic matter in the tail water. At the same time, the dissolved oxygen content in the water body is also difficult to effectively control, and too high or too low dissolved oxygen level is not conducive to the normal metabolic activity of microorganisms, thereby affecting the biological purification efficiency of the tail water.

[0005] Therefore, the aquaculture pond tail water treatment device is provided to solve the problems in the above background. UTILITY MODEL CONTENTS

[0006] In order to make up for the above shortcomings, the aquaculture pond tail water treatment device is provided to improve the problem that the simple filter screen in the prior art cannot effectively intercept small particles and colloidal substances, and the growth environment of microorganisms cannot be accurately controlled, and the dissolved oxygen content in the water body is also difficult to effectively control.

[0007] To achieve the above object, the utility model provides the following technical scheme: aquaculture pond tail water treatment device, including filter box, the left side fixed communication of filter box has water inlet pipe, the inside of filter box is provided with coarse filter screen, the inside of filter box is provided with fine filter screen, the upper side fixed connection of filter box has fixed frame, the inside rotation of fixed frame is connected with fixed shaft, the outside of fixed shaft is equipped with cleaning brush, the downside of cleaning brush is provided with collection groove, the fixed connection of collection groove has guide plate, the right side fixed communication of filter box has water outlet pipe, the side fixed communication of water outlet pipe away from filter box has biological filter tank, the inside of biological filter tank is provided with control assembly.

[0008] Further, the control assembly includes a heating rod, the heating rod is fixedly installed in the biological filter tank, the inner wall of the biological filter tank is fixedly installed with a temperature sensor, the right side of the biological filter tank is fixedly installed with an oxygenation pump, the right side of the oxygenation pump is installed with a frequency converter, the left side of the oxygenation pump is fixedly communicated with an aeration pipe, the outer side of the aeration pipe is fixedly communicated with a branch pipe, the inside of the branch pipe is provided with an air outlet hole, and the inner wall of the biological filter tank is fixedly installed with a dissolved oxygen sensor.

[0009] Further, the coarse filter screen is arranged on the left side of the fine filter screen.

[0010] Further, the cleaning brush is rotationally connected to the left side of the coarse filter screen and the fine filter screen.

[0011] Further, the aeration pipe and the branch pipe are arranged at the inner bottom of the biological filter tank.

[0012] Further, the temperature sensor is arranged on the left side of the dissolved oxygen sensor.

[0013] Further, the front side of the biological filter tank is fixedly installed with a control panel, and the control panel is electrically connected with the temperature sensor, the heating rod, the dissolved oxygen sensor, the oxygenation pump and the frequency converter.

[0014] Further, the coarse filter screen and the fine filter screen are slidingly connected in the inside of the filter box.

[0015] The utility model has the advantages of:

[0016] 1. In the utility model, through two-stage filtering of coarse and fine filter screens, different particle size impurities in tail water can be effectively removed, tail water purification degree is significantly improved, better water quality basis is provided for subsequent biological treatment, biological treatment effect is guaranteed, cleaning brush is driven to rotate and clean by pulling filter screen, operation is simple and convenient, cumbersome work and labor intensity of manual filter screen cleaning are reduced, filter screen can be cleaned in time, high-efficiency filtering performance is maintained, and filter screen service life is prolonged.

[0017] 2、The utility model discloses, utilize temperature sensor, heating rod, dissolved oxygen sensor, frequency converter and aerator pump etc. the control system of constitution, can accurate regulation the water temperature and dissolved oxygen content in biological filter, provide stable and suitable growth environment for microorganism, enhance the decomposition ability of microorganism to organic matter in tail water, thereby improve tail water biological purification efficiency and quality, make tail water treatment effect more optimal. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the perspective drawing of the breeding pond tail water treatment device that the utility model provides;

[0019] Figure 2 It is the filter box structure schematic view of the breeding pond tail water treatment device that the utility model provides;

[0020] Figure 3 It is the biological filter internal structure schematic view of the breeding pond tail water treatment device that the utility model provides.

[0021] LEGEND:

[0022] 1, filter box;2, inlet pipe;3, coarse filter screen;4, fine filter screen;5, fixed frame;6, fixed shaft;7, cleaning brush;8, collection tank;9, guide plate;10, outlet pipe;11, biological filter;12, control assembly;121, heating rod;122, temperature sensor;123, dissolved oxygen sensor;124, aerator pump;125, aeration pipe;126, branch pipe;127, air outlet;128, frequency converter;13, control panel. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] REFERENCE Figure 1 and Figure 2The utility model provides an embodiment: the breeding pond tail water treatment device, including filter box 1, the left side fixed communication of filter box 1 has water inlet pipe 2, the inside of filter box 1 is provided with coarse filter screen 3, the inside of filter box 1 is provided with fine filter screen 4, coarse filter screen 3 sets up in the left side of fine filter screen 4, the upper side fixed connection of filter box 1 has fixed frame 5, the inside rotation is connected with fixed shaft 6 of fixed frame 5, the outside of fixed shaft 6 is equipped with cleaning brush 7, and cleaning brush 7 rotation is connected in the left side of coarse filter screen 3 and fine filter screen 4, and coarse filter screen 3 and fine filter screen 4 are slidably connected in the inside of filter box 1, and the downside of cleaning brush 7 is provided with collecting groove 8, and the fixed connection of collecting groove 8 has guide plate 9, the right side fixed communication of filter box 1 has water outlet pipe 10, and the side fixed communication of water outlet pipe 10 away from filter box 1 has biological filter 11, and the inside of biological filter 11 is provided with control assembly 12;

[0025] Specifically, the tail water of the breeding pond flows into the filter box 1 from the left side through the water inlet pipe 2. Upon entering the filter box 1, the tail water first contacts the coarse filter screen 3. The coarse filter screen 3 has relatively large mesh holes, which can effectively intercept larger impurities such as leftover feed and feces, thereby completing the preliminary filtration of the tail water. The tail water that has passed through the coarse filter screen 3 continues to flow to the right by its own flow power and then passes through the fine filter screen 4. The fine filter screen 4 has even finer mesh holes, which can further filter out small particles and part of colloidal substances in the tail water, so that the water quality of the tail water is more finely purified. When the coarse filter screen 3 and the fine filter screen 4 have intercepted a large amount of impurities during the long-term filtration process and need to be cleaned, an operator can pull the coarse filter screen 3 and the fine filter screen 4 to make them move upward. As the coarse filter screen 3 and the fine filter screen 4 move upward, their left side surfaces will come into contact with the cleaning brush 7 inside the fixed frame 5. The coarse filter screen 3 and the fine filter screen 4 will drive the cleaning brush 7 to rotate during the upward movement. During the rotation of the cleaning brush 7, the bristles of the cleaning brush 7 can clean the coarse filter screen 3 and the fine filter screen 4, and the impurities intercepted on the filter screens will fall off due to the cleaning. The impurities that have fallen off will vertically fall downward under the action of gravity and finally fall into the collecting groove 8. The guide plate 9 installed on the collecting groove 8 is reasonably designed in shape and position, which can guide the impurities to smoothly enter the collecting groove 8, thereby facilitating the subsequent centralized treatment of the impurities.

[0026] Reference Figure 1 And Figure 3The inside of the biological filter 11 is provided with a control assembly 12, the control assembly 12 comprises a heating rod 121, the heating rod 121 is fixedly installed in the inside of the biological filter 11, a temperature sensor 122 is fixedly installed on the inner wall of the biological filter 11, an oxygenation pump 124 is fixedly installed on the right side of the biological filter 11, a frequency converter 128 is installed on the right side of the oxygenation pump 124, a gas aeration pipe 125 is fixedly communicated on the left side of the oxygenation pump 124, branch pipes 126 are fixedly communicated on the outer side of the gas aeration pipe 125, gas outlet holes 127 are arranged in the inside of the branch pipes 126, a dissolved oxygen sensor 123 is fixedly installed on the inner wall of the biological filter 11, the temperature sensor 122 is arranged on the left side of the dissolved oxygen sensor 123, a control panel 13 is fixedly installed on the front side of the biological filter 11, and the control panel 13 is electrically connected with the temperature sensor 122, the heating rod 121, the dissolved oxygen sensor 123, the oxygenation pump 124 and the frequency converter 128;

[0027] Specifically, the tail water filtered through the filter box 1 flows out from the water outlet pipe 10 on the right side of the filter box 1, and then enters the biological filter 11. In the inside of the biological filter 11, the temperature sensor 122 continuously and real-timely monitors the water temperature in the biological filter 11. When the water temperature is lower than the temperature suitable for the growth of microorganisms, the temperature sensor 122 will immediately capture this temperature change and transmit the corresponding signal to the control panel 13. After receiving the signal, the control panel 13 quickly issues an instruction to control the heating rod 121 to start working. The heating rod 121 starts to heat the water in the biological filter 11, so as to maintain the suitable water temperature environment required for the growth of microorganisms. At the same time, the dissolved oxygen sensor 123 also real-timely monitors the dissolved oxygen content in the biological filter 11. When the dissolved oxygen content is lower than the preset value, the dissolved oxygen sensor 123 transmits the monitored signal to the control panel 13. After receiving the signal, the control panel 13 immediately controls the frequency converter 128 to increase the rotating speed of the oxygenation pump 124. After the rotating speed of the oxygenation pump 124 is increased, more air is filled into the bottom of the biological filter 11 through the gas aeration pipe 125 and the branch pipes 126. The air is discharged through the gas outlet holes 127 on the branch pipes 126 and uniformly dispersed in the water body, so as to increase the dissolved oxygen content of the water body. Conversely, when the dissolved oxygen content is higher than the set value, the control panel 13 controls the frequency converter 128 to reduce the rotating speed of the oxygenation pump 124, so as to accurately adjust the dissolved oxygen level in the biological filter 11, provide a good and stable environment for the microorganisms to decompose the organic matters in the tail water, and finally realize the biological purification treatment of the tail water.

[0028] Working principle: when using the device, the tail water flows into the filter box 1 from the left side through the inlet pipe 2, first passes through the coarse filter screen 3, which can intercept larger particles of impurities, then the tail water after preliminary filtration continues to flow to the right, passes through the fine filter screen 4, which further filters out small particles and part of colloidal substances, so that the water quality is more finely purified, when it is necessary to clean the coarse filter screen 3 and the fine filter screen 4, pull the coarse filter screen 3 and the fine filter screen 4 to move upwards, so that the left side surface of the coarse filter screen 3 and the fine filter screen 4 is in contact with the cleaning brush 7 inside the fixed frame 5, which drives the cleaning brush 7 to rotate, so that the coarse filter screen 3 and the fine filter screen 4 can be cleaned, the impurities intercepted on the filter screen are brushed off, and the brushed-off impurities fall downward under the action of gravity and fall into the collecting groove 8, and the guide plate 9 on the collecting groove 8 can guide the impurities to smoothly enter the collecting groove 8;

[0029] The tail water filtered through the filter box 1 flows out from the right side through the outlet pipe 10 and enters the biological filter tank 11, the temperature sensor 122 monitors the water temperature in the biological filter tank 11 in real time, when the water temperature is lower than the suitable growth temperature of microorganisms, the temperature sensor 122 transmits a signal to the control panel 13, so that the control panel 13 controls the heating rod 121 to start and heats the water body, so as to maintain a suitable water temperature environment for the growth of microorganisms, the dissolved oxygen sensor 123 monitors the dissolved oxygen content in the biological filter tank 11 in real time, when the dissolved oxygen content is lower than the set value, the dissolved oxygen sensor 123 transmits a signal to the control panel 13, the control panel 13 controls the frequency converter 128 to increase the rotating speed of the oxygenation pump 124, the oxygenation pump 124 fills air into the bottom of the biological filter tank 11 through the aeration pipe 125 and the branch pipe 126, and the air is discharged through the air outlet hole 127, so that the air is uniformly dispersed in the water body, and the dissolved oxygen content of the water body is increased; when the dissolved oxygen content is higher than the set value, the control panel 13 controls the frequency converter 128 to reduce the rotating speed of the oxygenation pump 124, so as to accurately adjust the dissolved oxygen level in the biological filter tank 11, and provide a good environmental condition for microorganisms to decompose organic matters in the tail water, so as to realize biological purification treatment of the tail water.

[0030] Finally, it should be pointed out that: the above only describes preferred embodiments of the present application and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A device for treating tail water of a culture pond, comprising a filter box (1), characterized in that: The left side of the filter box (1) is fixedly connected with a water inlet pipe (2), the inside of the filter box (1) is provided with a coarse filter screen (3), the inside of the filter box (1) is provided with a fine filter screen (4), the upper side of the filter box (1) is fixedly connected with a fixed frame (5), the inside of the fixed frame (5) is rotatably connected with a fixed shaft (6), the outside of the fixed shaft (6) is sleeved with a cleaning brush (7), the lower side of the cleaning brush (7) is provided with a collecting groove (8), the collecting groove (8) is fixedly connected with a guide plate (9), the right side of the filter box (1) is fixedly connected with a water outlet pipe (10), the side away from the filter box (1) of the water outlet pipe (10) is fixedly connected with a biological filter tank (11), and the inside of the biological filter tank (11) is provided with a control assembly (12).

2. The device for treating the effluent of an aquaculture pond according to claim 1, characterized in that: The control assembly (12) comprises a heating rod (121), the heating rod (121) is fixedly installed in the biological filter tank (11), the inner wall of the biological filter tank (11) is fixedly installed with a temperature sensor (122), the right side of the biological filter tank (11) is fixedly installed with an oxygenation pump (124), the right side of the oxygenation pump (124) is installed with a frequency converter (128), the left side of the oxygenation pump (124) is fixedly connected with an aeration pipe (125), the outer side of the aeration pipe (125) is fixedly connected with a branch pipe (126), the inside of the branch pipe (126) is provided with an air outlet hole (127), and the inner wall of the biological filter tank (11) is fixedly installed with a dissolved oxygen sensor (123).

3. The device for treating the effluent of an aquaculture pond according to claim 1, characterized in that: The coarse filter screen (3) is arranged on the left side of the fine filter screen (4).

4. The device for treating the effluent of an aquaculture pond according to claim 1, characterized in that: The cleaning brush (7) is rotatably connected to the left side of the coarse filter screen (3) and the fine filter screen (4).

5. The device for treatment of tailwater from an aquaculture pond according to claim 2, characterized in that: The aeration pipe (125) and the branch pipe (126) are arranged on the inner bottom of the biological filter tank (11).

6. The device for treatment of tailwater from an aquaculture pond according to claim 2, characterized in that: The temperature sensor (122) is arranged on the left side of the dissolved oxygen sensor (123).

7. The device for treatment of the effluent from the aquaculture pond according to claim 2, characterized in that: The front side of the biological filter tank (11) is fixedly installed with a control panel (13), and the control panel (13) is electrically connected with the temperature sensor (122), the heating rod (121), the dissolved oxygen sensor (123), the oxygenation pump (124) and the frequency converter (128).

8. The device for treatment of the effluent from the aquaculture pond according to claim 1, characterized in that: The coarse filter screen (3) and the fine filter screen (4) are slidably connected in the inside of the filter box (1).

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