CN210796170U - Fish manure sewage treatment and cyclic utilization system for fish culture in fish pond - Google Patents
Fish manure sewage treatment and cyclic utilization system for fish culture in fish pond Download PDFInfo
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- CN210796170U CN210796170U CN201921537182.0U CN201921537182U CN210796170U CN 210796170 U CN210796170 U CN 210796170U CN 201921537182 U CN201921537182 U CN 201921537182U CN 210796170 U CN210796170 U CN 210796170U
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Abstract
The utility model discloses a circulating water fish culture excrement sewage concentration device and circulating water fish culture excrement concentrating and recycling system, it is connected with the rotary drum to rotate on the frame, it has the drainage hole to distribute on the rotary drum, the rotary drum passes through the motor and drives the rotation, one end of rotary drum is sealed, the other end is open, this open end is the water inlet end, the top of rotary drum is provided with gas blowing device and shower, gas blowing device links to each other with air compressor machine or high-pressure gas pitcher, gas blowing device blows to the rotary drum, the downside of shower is provided with a plurality of water jets or sprinkler heads that spray water towards the rotary drum, the center pin of rotary drum is the hollow shaft, be provided with on the center pin and connect the excrement fill, connect the bottom and the center pin UNICOM of excrement fill, just in time can be located below gas blowing; the excrement in the excrement receiving hopper is discharged from one end of the central shaft, which is far away from the water inlet end. The concentration of the fish manure sewage can be further improved to more than 5 percent, the water consumption is low, the energy consumption of subsequent biochemical treatment is low, and the cost is low.
Description
Technical Field
The utility model relates to a fish pond fish culture fish excrement sewage treatment and cyclic utilization system belongs to the water treatment field.
Background
The fish culture density of the circulating water is high, the average bait feeding amount is between 1 and 1.2 percent, a large amount of feces and residual bait can be produced every day, the feces and residual bait in a fish pond are removed by a method of increasing the circulating water amount and increasing the water change amount generally at home at present, a large amount of sewage is subjected to aerobic treatment after being filtered by a micro-filter, and the treated tail water is used for vegetable planting or artificial wetland purification and finally reaches the standard and is discharged.
The problems of large sewage quantity, high energy consumption in the treatment process, large facility capacity, high construction investment and large water resource waste comprehensively influence the healthy development of the fish culture by the circulating water. Therefore, how to better reduce the energy consumption of aerobic treatment and reduce the treatment cost becomes a problem to be solved.
SUMMERY OF THE UTILITY MODEL
To the technical problem, an object of the utility model is to provide a fish pond fish culture fish excrement sewage treatment and cyclic utilization system realizes planting and breeding closed cycle, and the pollutant zero release, the fish-vegetable intergrowth, economic benefits is good, and biochemical treatment is high-efficient, and is with low costs.
In order to realize the purpose, the technical scheme of the utility model is that: the utility model provides a fish pond fish culture fish excrement sewage treatment and cyclic utilization system, includes the fish pond, fish pond bottom fish excrement sewage arranges into fish excrement collecting pit, the well upper portion of fish pond is provided with pond face row mouth, its characterized in that: the pond surface discharge port is connected with the micro-filter, clear water from the micro-filter enters an ultraviolet ray sterilizer for sterilization, the sterilized water enters a boiling type moving bed biological filter, water from the boiling type moving bed biological filter returns to the fish pond, and backwashing water of the micro-filter enters a fish manure collecting pond;
the sewage in the fish manure collecting tank enters a fish manure rotary drum thickener for concentration, clear water from the rotary drum thickener enters a water return tank, concentrated solution from the fish manure rotary drum thickener enters an anaerobic fermentation tank, water from the anaerobic fermentation tank enters a first aerobic tank, then sequentially enters a sedimentation tank and a biological filter tank, water from the biological filter tank enters a tail solution tank, and water from the tail solution tank enters a vegetable cultivation system;
the vegetable cultivation system comprises a fertilizer pool, a water-fertilizer integrated system and a vegetable cultivation area, wherein a water pump of the tail liquid pool enters the fertilizer pool, the effluent of the fertilizer pool enters the water-fertilizer integrated system for nutrition allocation or directly enters the vegetable cultivation area, the effluent of the water-fertilizer integrated system enters the vegetable cultivation area, and the excess water which is filtered and purified is recycled through the vegetable cultivation area flows back to the water return pool;
and the water in the water return tank enters a second aerobic tank, an outlet of the second aerobic tank is connected with an ultraviolet ray disinfection machine, an outlet of the ultraviolet ray disinfection machine is connected with a filtering device, and the water filtered by the filtering device returns to the fish tank.
By adopting the scheme, the fish dung sewage is collected by two routes, namely, the dung sewage and the residual bait at the middle upper part of the water level of the fish pond enter the micro-filter through the pond surface discharge port for filtering, and the back flushing liquid is discharged into the fish dung collecting pond; and secondly, the feces and residual bait water at the bottom of the fish pond is collected by a feces collector and then is discharged to a fish feces collecting pond.
After the fecal sewage residual bait at the upper part of the water level of the fish pond is filtered by the micro-filter, clear water enters the ultraviolet disinfection machine to remove pathogenic microorganisms in the water, including microorganism population pedigrees such as bacteria, viruses, fungi and the like which are sensitive to the destructive power of the ultraviolet technology. Then enters a boiling type moving bed biological filter to remove harmful substances such as ammonia nitrogen, nitrite and the like. And finally returning to the fish pond.
The sewage in the fish manure collecting tank enters a fish manure rotary drum thickener for concentration, and is sequentially subjected to anaerobic treatment, aerobic treatment, precipitation treatment and biological filtration treatment after the concentration of TS 3-5%, so that COD is removedcrMore than 90%, final BOD5Less than 5mg/L and nitrite content less than 0.2mg/L, and the fish manure residual bait is fully converted into substances which can be absorbed and utilized by vegetables such as nitrate nitrogen, inorganic salt and the like. The water then enters the tailings pond.
Pumping the tail liquid after biochemical treatment into a fertilizer pool, monitoring nutrient components in water, directly using the tail liquid in vegetable planting areas for vegetable cultivation if the tail liquid meets the vegetable planting requirements, and sending the tail liquid to a water-fertilizer system for nutrient blending if the tail liquid does not meet the vegetable planting requirements, and then using the tail liquid in vegetable cultivation.
And (3) recycling the rich water or the prepared nutrient solution in the vegetable planting area, filtering and purifying, then returning the redundant rich water to the water return tank, and performing aerobic treatment in the aerobic tank again to remove the residual ammonia nitrogen and nitrite. Then enters an ultraviolet ray disinfection machine to remove pathogenic microorganisms in water, including microorganism population pedigrees such as bacteria, viruses, fungi and the like which are sensitive to the destructive power of the ultraviolet ray technology. Finally, impurities such as floaters in the water are removed through filtering, so that the water flowing back to the fish pond is cleaner. The whole system is in closed circulation without discharging sewage.
In the scheme, the fish manure rotary drum thickener comprises a frame, a rotary drum central shaft is connected to the frame, the rotary drum is sleeved on the central shaft through shaft sleeves at two ends of the rotary drum, a plurality of water filtering holes are distributed on the rotary drum, the rotary drum is driven by a speed reduction motor to rotate around the central shaft, one end of the rotary drum is closed, the other end of the rotary drum is open, the open end is a water inlet end, an air blowing device and a spray pipe are arranged above the outside of the rotary drum along the extension direction of the central shaft of the rotary drum, the air blowing device is connected with an air compressor or a high-pressure air tank, the air blowing device can blow air into the rotary drum, a plurality of water spray nozzles or water spray heads spraying water towards the interior of the rotary drum are arranged at the lower side of the spray pipe, a water return pool is connected with the water spray pipes through a water return, the opening at the top end of the excrement receiving hopper is just positioned below the blowing device and the spray pipe, the top end of the excrement receiving hopper extends along the length direction of the blowing device, and excrement sewage in the excrement receiving hopper is discharged from one end, far away from the water inlet end, of the central shaft.
The fish manure sewage in the fish manure collecting tank is passed through the elevator pump and is followed the end pump income rotary drum that intakes, and the rotary drum is rotatory around the center pin, and along with the rotation of rotary drum, fish manure and incomplete bait depend on the rotary drum internal surface, and the clear water passes through the rotary drum and discharges. The water filtering holes can be blocked by fish manure and residual bait attached to the inner surface of the rotary drum, the passing capacity of the water filtering holes is reduced, the water level in the rotary drum rises gradually, a compressed air electromagnetic valve is arranged on a pipeline connected with an air compressor or a high-pressure air tank and an air blowing device, after the water level reaches a certain height, a compressed air electromagnetic valve arranged on the pipeline connected with the air blowing device is opened, pressure air flow blows from the outer surface of the rotary drum to the inner surface through the air blowing device, the fish manure and the residual bait attached to the inner surface of the rotary drum are blown off and fall into a manure receiving hopper, and the fish manure and the residual bait are discharged through the. The water sprayed by the spray pipe is used for adjusting the TS concentration of the concentrate, and the water yield of the spray pipe is adjusted so as to reduce or increase the TS concentration of the concentrate.
In the scheme, the method comprises the following steps: the frame is the water receiving tank of upper end open-ended, the relative bilateral symmetry on water receiving tank top is provided with the center pin mount pad, the both ends of center pin are fixed respectively on the center pin mount pad of both sides, be provided with the clear water export on the water receiving tank, the clear water export links to each other with the return water pond. Clear water enters the water receiving tank through the drum water filtering holes and is discharged to the water return pool from the water receiving tank.
In the scheme, the method comprises the following steps: the frame is a cube or cuboid frame formed by a transverse beam and a vertical beam in a surrounding mode, central shaft mounting seats are symmetrically arranged on the transverse beams on two opposite sides of the top end of the frame, two ends of a central shaft are respectively fixed on the central shaft mounting seats on two sides, and the frame is directly mounted above the water return pool.
In the scheme, the method comprises the following steps: the rotary drum comprises a cylindrical shell formed by enclosing filter screen sheets, one end of the cylindrical shell is closed, the inner wall of the other end of the cylindrical shell is connected with a shaft sleeve through a supporting framework, and the shaft sleeve is also arranged in the center of the end face of the closed end of the cylindrical shell.
And a driven gear is sleeved outside the shaft sleeve at one end of the rotary drum and is meshed with a driving gear on an output shaft of the speed reducing motor. The motor drives the gear to rotate, so that the rotary drum is driven to rotate around the central shaft of the rotary drum.
In the scheme, the method comprises the following steps: the inner side of the rack is provided with a circular arc-shaped water inlet groove with two high ends and a low middle part, one side of the water inlet groove close to the rack is provided with a water inlet pipe, the water inlet pipe extends out of the rack, the lower end of the opening end of the rotary drum is lapped on a notch of one side of the water inlet groove, which is far away from the water inlet pipe, and a sealing element is arranged between the water inlet groove and the rotary drum. The sealing element is tightly attached to the rotary drum, so that the inside and the outside of the rotary drum are strictly separated, and the water entering the water inlet groove enters the rotary drum from the water inlet end of the rotary drum.
In the scheme, the method comprises the following steps: the air blowing device is an air knife.
In the scheme, the method comprises the following steps: and the other two opposite sides of the top end of the rack are provided with housing supporting frames, the housing is supported above the rotary drum through the housing supporting frames, and the air blowing device and the spray pipe are positioned in the housing.
In the scheme, the method comprises the following steps: and a liquid level sensor is arranged in the rotary drum and/or the water inlet tank. When the water surface touches the liquid level sensor, a compressed air electromagnetic valve arranged on a pipeline connected with the blowing device is opened.
Has the advantages that: the utility model discloses a fish manure rotary drum thickener adopts the pressure air back flush, and sewage volume is 96% -98% less than general microstrainer water back flush to the huge saving circulating water consumption of breeding fish, and alleviate circulating water biochemical treatment pressure, improve fish manure thickener sewage concentration, fish manure sewage TS concentration average can reach 5%. And the device can adjust the concentration of the back flush filth TS at will by adjusting the water quantity of the spray pipe. The sewage with higher TS concentration is suitable for anaerobic biochemical treatment, and has lower energy consumption, smaller facility capacity and less investment compared with the common aerobic biochemical treatment. The utility model discloses a grow and seal the circulation, the pollutant zero release, the intergrowth of fish and vegetable, economic benefits multiplies. The utility model has high efficiency of biochemical treatment and COD removalcrMore than 90%, final BOD5Less than 5mg/L, less than 0.2mg/L of nitrite content and less than 1h of treatment process. The utility model discloses can adopt the batch production mode, the management is automatic, and the more tradition of human cost is grown the mode and is reduced by a wide margin. The key links are managed in a digital mode, the growth environment of the fish and the vegetables is controllable, and the risk of disasters is effectively reduced.
Drawings
FIG. 1 is a flow chart of a fish-manure sewage treatment and recycling system for fish culture in a fish pond.
Fig. 2 is a schematic structural diagram of a fish dung rotary drum thickener of embodiment 1 of the present invention.
Fig. 3 is a right side view of fig. 2.
Fig. 4 is a left side view of fig. 2 with the reduction motor removed.
Fig. 5 is a top view of fig. 2.
Fig. 6 is a schematic structural view of a feces drum concentrator of example 2.
Detailed Description
The invention will be further described by way of examples with reference to the accompanying drawings:
the utility model discloses a preceding, back, left and right, upper and lower equidirectional words only represent relative position in the picture, do not show the product absolute position.
In embodiment 1, as shown in fig. 2 to 5, the fish dung rotary drum thickener comprises a frame 1, a rotary drum 2, a speed reduction motor 3, a central shaft 4, a blowing device 5, a spray pipe 6, a central shaft mounting seat 7, a driven gear 8, a driving gear 9, a water inlet tank 10, a sealing element 11, a supporting framework 12, a housing 13, a housing supporting frame 14, a liquid level sensor 15, a water inlet pipe 16 and a dung receiving hopper 17.
The frame 1 is a water receiving tank with an opening at the upper end, so that clean water is convenient to collect. The two opposite sides of the top end of the water receiving tank are symmetrically provided with central shaft mounting seats 7, and a clear water outlet (not shown in the figure) is arranged on the water receiving tank.
The rotary drum 2 is rotatably connected to the frame 1, one end of the rotary drum 2 is closed, the other end of the rotary drum is open, and the open end is a water inlet end. A plurality of tiny water filtering holes are distributed on the rotary drum 2, preferably: the rotary drum 2 comprises a cylindrical shell surrounded by filter screen sheets, one end of the cylindrical shell is sealed by an end plate, the inner wall of the other end of the cylindrical shell is connected with a central shaft sleeve 201 through a supporting framework 12, and the center of the end face of the sealed end of the cylindrical shell is also provided with the shaft sleeve 201. The central shaft 4 is a hollow shaft. Two ends of the central shaft 4 are respectively fixed on the central shaft mounting seats 7 at two sides. The other two opposite sides of the water receiving tank are provided with cover supporting frames 14, and the cover 13 is supported above the rotary drum 2 through the cover supporting frames 14.
The rotary drum 2 is driven by the speed reducing motor 3 to rotate around a central shaft 4, and specifically: a driven gear 8 is sleeved outside a shaft sleeve 201 at one end of the rotary drum 2, preferably, the driven gear 8 is positioned at one end far away from a water inlet of the rotary drum, and the driven gear 8 is meshed with a driving gear 9 on an output shaft of the speed reducing motor 3.
The side wall of the water receiving tank is provided with a rotary drum water inlet, the inner wall of the water receiving tank is provided with a circular arc-shaped water inlet groove 10 with two high ends and a low middle part, namely the middle of the water inlet groove 10 is deep, the two ends of the water inlet groove are tilted upwards, the notch of the water inlet groove 10 is in a circular arc shape matched with the lower cylinder opening of the rotary drum 2, one side of the water inlet groove 10 is close to the inner wall of the water receiving tank, one side of the water inlet groove 10 close to the inner wall of the water receiving tank is provided with a water inlet pipe 16. The lower end of the open end of the rotary drum 2 is lapped on the notch of one side of the water inlet groove 10 far away from the water inlet pipe 16, and a sealing element 11 is arranged between the water inlet groove 10 and the rotary drum 2.
An air blowing device 5 and a spray pipe 6 are arranged above the outside of the rotary drum 2 along the extending direction of the central shaft 4 of the rotary drum 2, and the air blowing device 5 and the spray pipe 6 are positioned in a housing 13. The blowing device 5 is connected with an air compressor or a high-pressure air tank, the blowing device 5 blows air into the rotary drum 2, and preferably, the blowing device 5 is an air knife. The lower side of the spray pipe 6 is provided with a plurality of water spray nozzles or water spray heads which spray water towards the inside of the rotary drum 2.
A manure receiving hopper 17 is arranged on the central shaft 4, the bottom end of the manure receiving hopper 17 is communicated with the central shaft 4, the opening at the top end of the manure receiving hopper 17 can be just positioned below the blowing device 5 and the spray pipe 6 when rotating to the uppermost position, and the top end of the manure receiving hopper 17 extends along the length direction of the blowing device 5. The manure water in the manure receiving hopper 17 is discharged from the end of the central shaft 4 remote from the water inlet end. The gear motor 3, the driving gear 9 and the driven gear 8 are positioned at one end of the central shaft 4 far away from the water inlet end. A liquid level sensor 15 is arranged in the rotary drum 2 and/or the water inlet tank 10.
Example 2
As shown in fig. 6, the other points are the same as those in embodiment 1, except that the frame 1 is a cubic or rectangular frame surrounded by horizontal beams and vertical beams, the horizontal beams on two opposite sides of the top end of the frame are symmetrically provided with central shaft mounting seats 7, and two ends of the central shaft 4 are respectively fixed on the central shaft mounting seats 7 on two sides. And the other two transverse beams at the opposite sides are provided with a housing support frame 14, the housing 13 is supported by the housing support frame 14, the water inlet tank 10 is directly fixed at the inner side of the transverse beam, one side of the water inlet tank 10 close to the transverse beam is provided with a water inlet pipe 16, and the water inlet pipe 16 extends out of the machine frame. The frame 1 is directly installed above the water return pool, and clear water is directly discharged into the water return pool.
Example 3
As shown in fig. 1, a fish pond fish-culturing fish manure sewage treatment and recycling system comprises a fish pond 18, a fish manure collecting pond 19, a micro-filter 20, an ultraviolet ray sterilizer 21, a boiling moving bed biofilter 22, a filtering device 23, a water returning pond 24, an anaerobic fermentation pond 25, a first aerobic pond 26, a sedimentation pond 27, a biofilter 28, a tail liquid pond 29, a water fertilizing pond 30, a water and fertilizer integrated system 31, a vegetable cultivation area 32, a second aerobic pond 33 and the fish manure rotary drum thickener of embodiment 1.
Fish manure sewage at the bottom of the fish pond 18 is collected by a manure collector and then is discharged into a fish manure collecting pond 19, a pond surface discharge port is formed in the middle upper part of the fish pond 18, the manure residual bait on the middle upper part of the water level of the fish pond 18 enters a micro-filter 20 through the pond surface discharge port to be filtered, and backwashing water of the micro-filter 20 enters the fish manure collecting pond 19. The clear water from the micro-filter 20 enters the ultraviolet ray sterilizer 21 for sterilization, the sterilized water enters the boiling type moving bed biofilter 22, and the water from the boiling type moving bed biofilter 22 returns to the fish pond 18.
The sewage in the fish dung collecting tank 19 enters the rotary drum 2 of the fish dung rotary drum concentrator of embodiment 1 for concentration, a clear water outlet of the rotary drum concentrator is connected with a water return tank 24, the clear water enters the water return tank 24, and the water in the water return tank 24 is pumped to the spray pipe 6 through a back flush pump.
After the fish manure sewage reaches TS 3-5% in the fish manure rotary drum concentration machine, the concentrated solution enters an anaerobic fermentation tank 25, water from the anaerobic fermentation tank 25 enters a first aerobic tank 26, then enters a sedimentation tank 27 and a biological filter 28 in sequence, water from the biological filter 28 enters a tail solution tank 29, and water from the tail solution tank 29 enters a vegetable cultivation system.
The vegetable cultivation system comprises a fertilizer water tank 30, a water and fertilizer integrated system 31 and a vegetable cultivation area 32, water in a tail liquid tank 29 is pumped into the fertilizer water tank 30, water out of the fertilizer water tank 30 enters the water and fertilizer integrated system 31 for nutrition allocation or directly goes to the vegetable cultivation area 32, water out of the water and fertilizer integrated system 31 enters the vegetable cultivation area 32, and redundant water is recycled, filtered and purified through the vegetable cultivation area 32 and then flows back to the water return tank 24.
The water in the water return pool 24 enters a second aerobic pool 33, the outlet of the second aerobic pool 33 is connected with the ultraviolet disinfection machine 21, the outlet of the ultraviolet disinfection machine 21 is connected with the filtering device 23, and the water filtered by the filtering device 23 returns to the fish pond.
Example 4
The rest is the same as the example 3, except that the rotary drum 2 of the fish dung rotary drum concentrator of the example 2 is adopted, the frame is directly arranged above the water return pool 24, and the clean water directly enters the water return pool 24.
The present invention is not limited to the above embodiments, and those skilled in the art can understand that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. The utility model provides a fish pond fish culture fish excrement sewage treatment and cyclic utilization system, includes the fish pond, fish pond bottom fish excrement sewage arranges into fish excrement collecting pit, the well upper portion of fish pond is provided with pond face row mouth, its characterized in that: the pond surface discharge port is connected with a micro-filter, clear water from the micro-filter enters an ultraviolet ray sterilizer for sterilization, the sterilized water enters a boiling type moving bed biological filter, water from the boiling type moving bed biological filter returns to a fish pond, and backwashing water of the micro-filter enters a fish dung collecting pond;
sewage in the fish manure collecting tank enters a fish manure rotary drum thickener for concentration, clear water from the fish manure rotary drum thickener enters a water return tank, concentrated solution from the fish manure rotary drum thickener enters an anaerobic fermentation tank, water from the anaerobic fermentation tank enters a first aerobic tank, then sequentially enters a sedimentation tank and a biological filter tank, water from the biological filter tank enters a tail liquid tank, and water from the tail liquid tank enters a vegetable cultivation system;
the vegetable cultivation system comprises a fertilizer pool, a water-fertilizer integrated system and a vegetable cultivation area, wherein a water pump of the tail liquid pool enters the fertilizer pool, the effluent of the fertilizer pool enters the water-fertilizer integrated system for nutrition allocation or directly enters the vegetable cultivation area, the effluent of the water-fertilizer integrated system enters the vegetable cultivation area, and the excess water which is filtered and purified is recycled through the vegetable cultivation area flows back to the water return pool;
and the water in the water return tank enters a second aerobic tank, an outlet of the second aerobic tank is connected with an ultraviolet ray disinfection machine, an outlet of the ultraviolet ray disinfection machine is connected with a filtering device, and the water filtered by the filtering device returns to the fish tank.
2. The fish pond fish culture fish manure sewage treatment and recycling system of claim 1, which is characterized in that: the fish manure rotary drum thickener comprises a frame, a rotary drum central shaft is connected to the frame, the rotary drum is sleeved on the central shaft through shaft sleeves at two ends of the rotary drum, a plurality of water filtering holes are distributed on the rotary drum, the rotary drum is driven by a speed reduction motor to rotate around the central shaft, one end of the rotary drum is closed, the other end of the rotary drum is open, the open end is a water inlet end, an air blowing device and a spray pipe are arranged above the outside of the rotary drum along the extension direction of the central shaft of the rotary drum, the air blowing device is connected with an air compressor or a high-pressure air tank and can blow air into the rotary drum, a plurality of water nozzles or water spray heads which spray water into the rotary drum are arranged at the lower side of the spray pipe, a water return pool is connected with the water spray pipes through a water return pump, the central shaft of the, the opening at the top end of the excrement receiving hopper is just positioned below the blowing device and the spray pipe, the top end of the excrement receiving hopper extends along the length direction of the blowing device, and excrement sewage in the excrement receiving hopper is discharged from one end, far away from the water inlet end, of the central shaft.
3. The fish pond fish culture fish manure sewage treatment and recycling system of claim 2, which is characterized in that: the frame is the water receiving tank of upper end open-ended, the relative bilateral symmetry on water receiving tank top is provided with the center pin mount pad, the both ends of center pin are fixed respectively on the center pin mount pad of both sides, be provided with the clear water export on the water receiving tank, the clear water export links to each other with the return water pond.
4. The fish pond fish culture fish manure sewage treatment and recycling system of claim 2, which is characterized in that: the frame is a cubic or cuboid frame formed by surrounding a transverse beam and a vertical beam, central shaft mounting seats are symmetrically arranged on the transverse beams on two opposite sides of the top end of the frame, two ends of a central shaft are respectively fixed on the central shaft mounting seats on two sides, the frame is directly mounted above the water return pool, and clean water coming out of the rotary drum is directly discharged into the water return pool.
5. The fish pond fish culture fish manure sewage treatment and recycling system of claim 3 or 4, which is characterized in that: the rotary drum comprises a cylindrical shell formed by enclosing filter screen sheets, one end of the cylindrical shell is closed, the inner wall of the other end of the cylindrical shell is connected with a shaft sleeve through a supporting framework, and the shaft sleeve is also arranged in the center of the end face of the closed end of the cylindrical shell.
6. The fish pond fish culture fish manure sewage treatment and recycling system of claim 5, which is characterized in that: and a driven gear is sleeved outside the shaft sleeve at one end of the rotary drum and is meshed with a driving gear on an output shaft of the speed reducing motor.
7. The fish pond fish culture fish manure sewage treatment and recycling system of claim 6, which is characterized in that: the inner side of the rack is provided with a circular arc-shaped water inlet groove with two high ends and a low middle part, one side of the water inlet groove close to the rack is provided with a water inlet pipe, the water inlet pipe extends out of the rack, the lower end of the opening end of the rotary drum is lapped on a notch of one side of the water inlet groove, which is far away from the water inlet pipe, and a sealing element is arranged between the water inlet groove and the rotary drum.
8. The fish pond fish culture fish manure sewage treatment and recycling system of claim 7, which is characterized in that: the air blowing device is an air knife.
9. The fish pond fish culture fish manure sewage treatment and recycling system of claim 8, which is characterized in that: and the other two opposite sides of the top end of the rack are provided with housing supporting frames, the housing is supported above the rotary drum through the housing supporting frames, and the air blowing device and the spray pipe are positioned in the housing.
10. The fish pond fish culture fish manure sewage treatment and recycling system of claim 9, which is characterized in that: and liquid level sensors are arranged in the rotary drum and/or the water inlet tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201921537182.0U CN210796170U (en) | 2019-09-17 | 2019-09-17 | Fish manure sewage treatment and cyclic utilization system for fish culture in fish pond |
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| CN201921537182.0U CN210796170U (en) | 2019-09-17 | 2019-09-17 | Fish manure sewage treatment and cyclic utilization system for fish culture in fish pond |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110606643A (en) * | 2019-09-17 | 2019-12-24 | 重庆市农业科学院 | Fish-culturing fish-manure sewage treatment and cyclic utilization system for fish pond |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110606643A (en) * | 2019-09-17 | 2019-12-24 | 重庆市农业科学院 | Fish-culturing fish-manure sewage treatment and cyclic utilization system for fish pond |
| CN110606643B (en) * | 2019-09-17 | 2023-10-24 | 重庆市农业科学院 | Fish pond fish-raising fish manure sewage treatment and cyclic utilization system |
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