Microfilter for outer pond recirculating aquaculture

Abstract

The utility model provides a microstrainer for outer pond recirculating aquaculture, which comprises a bottom frame, a treatment chamber, a rotary drum and a backwashing mechanism, the treatment chamber is arranged on the bottom frame, and the rotary drum and the backwashing mechanism are arranged in the treatment chamber; a slow flow bin, a water purification bin and a sewage collection bin are arranged in the treatment chamber, the slow flow bin and the water purification bin are arranged on the left side and the right side of the treatment chamber respectively, a water inlet is formed in one side of the slow flow bin and communicated with the slow flow bin, the sewage collection bin is arranged between the slow flow bin and the water purification bin, and the sewage collection bin is communicated with the upper end of the water purification bin in space. The lower end of the rotary drum is separated by a partition plate; and the rotary drum is transversely arranged between the sewage collecting bin and the water purifying bin. According to the utility model, water flow can be utilized to generate power to rotate the rotating disc of the micro-filter, and electric drive is not needed in the filtering process except for backwashing pollution discharge in the use process, so that the use cost can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of aquaculture equipment, in particular to a microfiltration machine used for external pond circulating water aquaculture. Background Art

[0002] Aquaculture, a key industry in the fishery industry, involves the cultivation of aquatic plants and animals in suitable waters. Its emergence and development signifies humanity's increasing ability to influence and control waters. Currently, recirculating aquaculture systems often employ microfiltration to remove contaminants such as plankton, leftover bait, and other organic particles. Microfiltration uses finely pore stainless steel wire as a filter medium, removing contaminants through sieving.

[0003] In related technologies, aquaculture wastewater is typically filtered through the drum of a microfiltration machine. Suspended particles larger than the filter mesh adhere to the stainless steel screen. The drum slowly rotates counterclockwise, and high-pressure water sprays from a spray pipe flush the screen. Impurities attached to the screen are flushed into a waste collection tank and then discharged into the sewer through a sewage pipe. Particles smaller than the filter mesh pass through the filter along with the water and enter the water pipeline for the next treatment process.

[0004] Existing microfiltration machines are generally driven by electricity to rotate, which has high energy consumption, high long-term use costs, and are not suitable for installation in complex outdoor pond environments. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the utility model provides a microfiltration machine for external pond circulating water aquaculture, which can use water flow to generate power to rotate the microfiltration machine turntable. During use, the filtration process does not require electric drive except for backwashing and sewage discharge.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A microfiltration machine for circulating water aquaculture in an outer pond comprises a base frame, a treatment chamber, a rotary drum and a backwashing mechanism, wherein the treatment chamber is mounted on the base frame, and the rotary drum and backwashing mechanism are arranged inside the treatment chamber; a slow flow bin, a clean water bin and a sewage collecting bin are arranged in the treatment chamber, and the slow flow bin and the sewage collecting bin are arranged on the left and right sides of the treatment chamber respectively, a water inlet is arranged on one side of the slow flow bin, the water inlet is connected to the slow flow bin, and a water inlet pipe is connected to the other side of the slow flow bin, the water inlet pipe passes through the sewage collecting bin and extends into the clean water bin, and is fixed to the inner wall of the clean water bin by a flange, and a water outlet pipe is arranged on the water inlet pipe, the water outlet pipe is arranged in a vertical direction to the water inlet pipe, and the water outlet pipe is arranged on the water inlet pipe. The pipe is arranged upwardly at an angle, and the sewage collecting bin is arranged between the slow flow bin and the clean water bin. The upper ends of the sewage collecting bin and the clean water bin are spatially connected, and the lower ends are separated by a partition plate. The drum is arranged horizontally between the sewage collecting bin and the clean water bin, and the drum is installed on the outer wall of the water inlet pipe through two rotating shafts. The drum can rotate with the water inlet pipe as the axis. A grid-shaped drum skeleton is arranged around the drum, and a filter screen is arranged on the outer wall of the drum skeleton. The filter screen is used to filter impurities in the water. The outlet pipe is arranged inside the drum, and a plurality of raised guide strips are provided on the inner wall of the drum skeleton. The guide strips extend obliquely downward from the upper end of the drum to the bottom end of the drum.

[0008] Furthermore, the base frame is a frame structure, a mounting platform is provided on the top of the base frame, and the processing chamber is provided on the mounting platform at the top of the base frame.

[0009] Furthermore, the water outlet pipe is arranged to be tilted upward with an inclination angle of 45 degrees.

[0010] Furthermore, a transparent observation window is provided on the side wall of the clean water tank, and an openable and closable top cover is provided on the top of the clean water tank.

[0011] Furthermore, a water outlet is provided at the bottom end of the clean water tank, and a liquid level control pipe is also provided inside the clean water tank, and the liquid level control pipe is electrically connected to the backwash mechanism.

[0012] Furthermore, a sewage pipe is connected to the bottom of the sewage collecting bin.

[0013] Furthermore, the lower end of the drum is arranged in the sewage collecting bin, and the upper end of the drum is arranged in the clean water bin. The lower end of the drum is larger than the upper end of the drum, so that the drum forms a truncated cone structure, and the water outlet pipe is arranged on the side close to the upper end of the drum.

[0014] Furthermore, the backwash mechanism includes a backwash pump, a flushing bracket and a flushing nozzle. The backwash pump is installed on the outer wall of the treatment chamber, and the backwash pump is connected to an external tap water pipe. The flushing bracket is installed on the inner wall of the clean water tank, and the installation height of the flushing bracket is consistent with the middle of the drum. The flushing nozzle is installed on the flushing bracket, and the flushing nozzle is connected to the backwash pump through a pipe.

[0015] Furthermore, the flushing nozzle is arranged to be tilted upward at a certain angle.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] This new system installs a water outlet pipe inside the drum, tilting it upward. Water, under the action of gravity, impacts the drum, creating a waterwheel effect that causes the drum to rotate. Diversion strips guide impurities separated by the filter screen to the bottom of the drum and into the collection chamber, achieving a filtering effect. This system requires no electrical drive to rotate the drum, effectively filtration of aquaculture water, and can effectively save energy. Its simple structure makes it easy to install and maintain, making it suitable for large-scale pond aquaculture. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of the microfiltration machine used for external pond circulating aquaculture according to the present invention;

[0019] Figure 2 For attachment Figure 1 a top cross-sectional view of the processing chamber shown;

[0020] Figure 3 This is a rear view of the microfiltration machine for external pond circulating aquaculture according to the present invention;

[0021] Figure 4 For attachment Figure 1 Schematic diagram of the structure of the drum shown. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] like Figure 1 、 Figure 2 As shown, a microfiltration machine for external pond circulating aquaculture includes a base frame 1, a treatment chamber 2, a rotating drum 3 and a backwashing mechanism 4. The base frame 1 is a frame structure with a mounting platform on the top. The treatment chamber 2 is arranged on the mounting platform at the top of the base frame 1. The treatment chamber 2 is a box-type structure. The rotating drum 3 and the backwashing mechanism 4 are arranged inside the treatment chamber 2.

[0024] The treatment chamber 2 is provided with a slow flow bin 21, a clean water bin 22 and a sewage collecting bin 23. The slow flow bin 21 and the clean water bin 22 are respectively arranged on the left and right sides of the treatment chamber 2. A water inlet 24 is provided on one side of the slow flow bin 21. The water inlet 24 is used to input the aquaculture water that needs to be treated. The water inlet 24 is connected to the slow flow bin 21. The aquaculture water that needs to be treated enters the slow flow bin 21 from the water inlet 24. The slow flow bin 21 is used for water buffering. The other side of the slow flow bin 21 is connected with a water inlet pipe 25. The water inlet pipe 25 passes through the sewage collecting bin 23 extends into the clean water tank 22 and is fixed to the inner wall of the clean water tank 22 through a flange 221. The water inlet pipe 25 is provided with an outlet pipe 26. The outlet pipe 26 is arranged perpendicular to the water inlet pipe 25 and is inclined upward at an angle of 45 degrees. The aquaculture water flows out of the outlet pipe 26 at an upward angle of 45 degrees. The water falls and impacts the drum 3, causing the drum 3 to rotate. A transparent observation window (not shown) is provided on the side wall of the clean water tank 22 for observing the operation of the equipment in the clean water tank 22. In this case, the top of the clean water tank 22 is provided with an openable top cover 222, through which the staff can enter the clean water tank 22 to inspect the equipment; the bottom of the clean water tank 22 is provided with a water outlet 223, which is used to discharge the filtered water in the clean water tank 22; the clean water tank 22 is also provided with a liquid level control pipe 224, which monitors the water level in the clean water tank 22 in real time. The liquid level control pipe 224 is electrically connected to the backwash mechanism 4. When the water level in the clean water tank 22 is too low When the liquid level control tube 224 detects no water level signal, it means that the filter screen on the drum 3 is clogged, and the backwash mechanism 4 starts to flush out the dirt in the filter screen on the drum 3; the sewage collecting bin 23 is arranged between the slow flow bin 21 and the clean water bin 22, and the sewage collecting bin 23 is used to collect impurities filtered out of the drum 3. The sewage collecting bin 23 is spatially connected to the upper end of the clean water bin 22, and the lower end is separated by a partition plate 232. A sewage drain pipe 231 is connected to the bottom of the sewage collecting bin 23, and the filtered impurities are discharged from the sewage collecting bin 23 through the sewage drain pipe 231.

[0025] The drum 3 is arranged horizontally between the sewage collecting bin 23 and the clean water bin 22. The drum 3 is mounted on the outer wall of the water inlet pipe 25 through two rotating shafts. The drum 3 can rotate with the water inlet pipe 25 as the axis. A grid-shaped drum frame 31 is arranged around the drum 3. A filter screen (not shown) is arranged on the outer wall of the drum frame 31. The filter screen is used to filter impurities in the water. The outlet pipe 26 is arranged inside the drum 3. The aquaculture water flows out from the outlet pipe 26 at an upward angle of 45 degrees. The water falls under the action of gravity and impacts the drum 3, forming a waterwheel effect, which causes the drum 3 to rotate. The lower end of the drum 3 is arranged in the sewage collecting bin 23, and the upper end of the drum 3 is arranged in the clean water bin 22. The lower end of the drum 3 is larger than the upper end of the drum 3, so that the drum 3 forms a truncated cone structure. The top of the drum 3 is closed by a sealing plate 312. The outlet pipe 26 is arranged on the side close to the upper end of the drum 3. After the aquaculture water falls from the outlet pipe 26 to the drum frame 31, it flows along the inclined drum frame 31 to the lower end of the drum 3 under the action of gravity. The water passes through the filter screen and falls into the clean water bin 22. The impurities in the water are isolated in the drum 3 by the filter screen. Figure 4 As shown, a plurality of raised guide strips 311 are provided on the inner wall of the drum skeleton 31, and the guide strips 311 extend obliquely downward from the upper end of the drum 3 to the bottom end of the drum 3. The guide strips 311 are used to guide the impurities filtered out by the filter screen to the bottom end of the drum 3, and enter the sewage collecting bin 23 from the bottom end of the drum 3. When the aquaculture water falls into the drum 3 from the outlet pipe 26, the thrust for the rotation of the drum 3 is formed under the action of the gravity of the water and the blocking effect of the guide strips 311. During the rotation of the drum 3, a part of the aquaculture water passes through the filter screen and drips into the clean water bin 22, and a part of the aquaculture water carries impurities along the edge of the guide strips 311 and flows to the bottom end of the drum 3 under the guiding effect of the guide strips 311, and the filtered impurities flow into the sewage collecting bin 23.

[0026] like Figure 1 、 Figure 3 As shown, the backwash mechanism 4 includes a backwash pump 41, a flushing bracket 42 and a flushing nozzle 43. The backwash pump 41 is installed on the outer wall of the treatment chamber 2, and the backwash pump 41 is connected to the external tap water pipe. The flushing bracket 42 is installed on the inner wall of the clean water tank 22. The installation height of the flushing bracket 42 is consistent with the middle of the drum 3. The flushing nozzle 43 is installed on the flushing bracket 42. The flushing nozzle 43 is connected to the backwash pump 41 through a pipe. The water sprayed by the flushing nozzle 43 is sprayed toward the drum 3, thereby washing away the impurities on the filter screen of the drum 3. Preferably, the flushing nozzle 43 is tilted upward at a certain angle, so that the water sprayed by the nozzle can drive the rotation of the drum 3 after impacting the drum 3, so as to achieve a good cleaning effect.

[0027] The operating principle of this utility model is as follows:

[0028] The aquaculture water that needs to be treated enters the slow flow bin 21 from the water inlet 24, then enters the sewage collection bin 23 from the water inlet pipe 25 and is discharged from the outlet pipe 26. Since the outlet pipe 26 is tilted upward at 45 degrees, after the aquaculture water flows out of the outlet pipe 26, the water falls under the action of gravity and impacts the drum 3, and the blocking effect of the guide bar 311 forms a thrust for the rotation of the drum 3, forming a waterwheel effect to rotate the drum 3. During the rotation of the drum 3, part of the aquaculture water drips into the clean water bin 22 through the filter screen, and part of the aquaculture water carries impurities along the edge of the guide bar 311. Under the guidance of the guide strip 311, the water flows to the bottom end of the drum 3, and the filtered impurities flow into the sewage collecting bin 23 and are discharged from the sewage collecting bin 23 through the sewage pipe 231; the filtered water in the clean water bin 22 is discharged from the water outlet 223. When the water level in the clean water bin 22 is too low, the liquid level control pipe 224 cannot detect the water level signal, which means that the filter screen on the drum 3 is blocked, and the backwash pump 41 is started. The water sprayed from the flushing nozzle 43 is ejected toward the drum 3, thereby washing off the impurities on the filter screen of the drum 3; the flushing nozzle 43 is automatically stopped after flushing for a certain period of time according to the program setting.

[0029] This new system installs a water outlet pipe inside the drum, tilting it upward. Water, under the action of gravity, impacts the drum, creating a waterwheel effect that causes the drum to rotate. Diversion strips guide impurities separated by the filter screen to the bottom of the drum and into the collection chamber, achieving a filtering effect. This system requires no electrical drive to rotate the drum, effectively filtration of aquaculture water, and can effectively save energy. Its simple structure makes it easy to install and maintain, making it suitable for large-scale pond aquaculture.

[0030] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A microfiltration machine for circulating water aquaculture in external ponds, comprising a base frame, a treatment chamber, a drum and a backwash mechanism, characterized in that: The treatment chamber is mounted on a base frame, and the drum and backwash mechanism are arranged inside the treatment chamber; a slow flow bin, a clean water bin and a sewage collecting bin are arranged in the treatment chamber, and the slow flow bin and the sewage collecting bin are arranged on the left and right sides of the treatment chamber respectively, a water inlet is arranged on one side of the slow flow bin, and the water inlet is connected to the slow flow bin, and a water inlet pipe is connected to the other side of the slow flow bin, and the water inlet pipe passes through the sewage collecting bin and extends into the clean water bin, and is fixed to the inner wall of the clean water bin by a flange, and a water outlet pipe is arranged on the water inlet pipe, and the water outlet pipe is arranged perpendicular to the water inlet pipe, and the water outlet pipe is inclined It is arranged upward, and the sewage collecting bin is arranged between the slow flow bin and the clean water bin. The upper ends of the sewage collecting bin and the clean water bin are spatially connected, and the lower ends are separated by a partition plate. The drum is arranged horizontally between the sewage collecting bin and the clean water bin, and the drum is installed on the outer wall of the water inlet pipe through two rotating shafts. A grid-shaped drum frame is arranged around the drum, and a filter screen is arranged on the outer wall of the drum frame. The outlet pipe is arranged inside the drum, and a plurality of raised guide strips are provided on the inner wall of the drum frame. The guide strips extend obliquely downward from the upper end of the drum to the bottom end of the drum.

2. The microfiltration machine for outer pond circulating aquaculture according to claim 1, characterized in that: The base frame is a frame structure, a mounting platform is provided on the top of the base frame, and the processing chamber is provided on the mounting platform at the top of the base frame.

3. The microfiltration machine for outer pond circulating aquaculture according to claim 1, characterized in that: The water outlet pipe is arranged to be inclined upward with an inclination angle of 45 degrees.

4. The microfiltration machine for outer pond circulating aquaculture according to claim 1, characterized in that: A transparent observation window is provided on the side wall of the clean water bin, and an openable and closable top cover is provided on the top of the clean water bin.

5. The microfiltration machine for outer pond circulating aquaculture according to claim 1, characterized in that: A water outlet is provided at the bottom end of the clean water tank, and a liquid level control pipe is also provided in the clean water tank, and the liquid level control pipe is electrically connected to the backwash mechanism.

6. The microfiltration machine for outer pond circulating aquaculture according to claim 1, characterized in that: The bottom of the sewage collecting bin is connected with a sewage discharge pipe.

7. The microfiltration machine for outer pond circulating aquaculture according to claim 1, characterized in that: The lower end of the drum is arranged in the sewage collecting bin, and the upper end of the drum is arranged in the clean water bin. The lower end of the drum is larger than the upper end of the drum, so that the drum forms a truncated cone structure, and the water outlet pipe is arranged on one side close to the upper end of the drum.

8. The microfiltration machine for external pond circulating aquaculture according to claim 1, characterized in that: The backwash mechanism includes a backwash pump, a flushing bracket and a flushing nozzle. The backwash pump is installed on the outer wall of the treatment chamber and is connected to an external tap water pipe. The flushing bracket is installed on the inner wall of the clean water tank. The installation height of the flushing bracket is consistent with the middle of the drum. The flushing nozzle is installed on the flushing bracket and is connected to the backwash pump through a pipe.

9. The microfiltration machine for external pond circulating aquaculture according to claim 8, characterized in that: The flushing nozzle is arranged to be tilted upward at a certain angle.

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