CN114504856B - Automatic sewage disposal device and method for concentrating and collecting solid pollutants in prawn culture pond - Google Patents
Automatic sewage disposal device and method for concentrating and collecting solid pollutants in prawn culture pond Download PDFInfo
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- CN114504856B CN114504856B CN202111628884.1A CN202111628884A CN114504856B CN 114504856 B CN114504856 B CN 114504856B CN 202111628884 A CN202111628884 A CN 202111628884A CN 114504856 B CN114504856 B CN 114504856B
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- 239000010865 sewage Substances 0.000 title claims abstract description 106
- 239000007787 solid Substances 0.000 title claims abstract description 46
- 239000003344 environmental pollutant Substances 0.000 title claims abstract description 43
- 231100000719 pollutant Toxicity 0.000 title claims abstract description 43
- 241000238557 Decapoda Species 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000033001 locomotion Effects 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 60
- 230000001360 synchronised effect Effects 0.000 claims description 35
- 230000008569 process Effects 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 230000018044 dehydration Effects 0.000 claims description 4
- 238000006297 dehydration reaction Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 230000000737 periodic effect Effects 0.000 claims description 3
- 239000000356 contaminant Substances 0.000 claims 1
- 210000003608 fece Anatomy 0.000 description 9
- 238000007599 discharging Methods 0.000 description 5
- 239000012141 concentrate Substances 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000011272 standard treatment Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/117—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements arranged for outward flow filtration
- B01D29/118—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements arranged for outward flow filtration open-ended
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/94—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/96—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor in which the filtering elements are moved between filtering operations; Particular measures for removing or replacing the filtering elements; Transport systems for filters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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- Life Sciences & Earth Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention discloses an automatic sewage draining device and method for concentrating and collecting solid pollutants in a shrimp culture pond, which is characterized by comprising a sewage draining tube with the bottom capable of being inserted on the tail end elbow of a sewage draining tube outside the culture pond, wherein a plurality of sewage draining holes are formed in the side wall of the sewage draining tube close to the bottom in a circle, a fixed sleeve, a movable sleeve capable of lifting along the sewage draining tube and a telescopic flexible tube capable of moving in a telescopic manner are sleeved on the outer wall of the sewage draining tube in sequence from top to bottom, a filter screen cage for collecting the solid pollutants is arranged between the fixed sleeve and the movable sleeve, the top of the telescopic flexible tube is fixedly connected with the movable sleeve, the bottom of the telescopic flexible tube is positioned below the sewage draining holes and fixedly and hermetically connected with the sewage draining tube, and a driving control device for controlling the lifting movement of the movable sleeve is arranged at the top of the sewage draining tube.
Description
Technical Field
The invention belongs to the technical field of aquaculture, and particularly relates to an automatic sewage disposal device and method for concentrating and collecting solid pollutants in a shrimp culture pond.
Background
The intensive cultivation facility for the prawns has high cultivation density and large bait feeding amount, and residual bait and excrement need to be discharged out of the cultivation facility in time in cultivation so as to maintain a good cultivation water quality environment. In general, tube drawing type pollution discharge is adopted, residual baits and feces in the culture water body directly enter tail water to be directly discharged, so that the load of pollutants of a subsequent tail water treatment system is too high, the treatment difficulty is increased, the standard discharge is difficult, and finally, the pollution to the surrounding water body is caused. Moreover, the manual pipe pulling type sewage discharging mode has high labor intensity, and the sewage discharging time has certain randomness, and is difficult to adapt to a high-frequency sewage discharging mode and night sewage discharging, so that the daily standardized management of the prawn culture is affected.
Related technologies of automatic sewage disposal of a shrimp culture pond, such as an automatic sewage disposal system and a method of a shrimp intensive culture pond of an authorized bulletin No. CN103766273B, provide an automatic sewage disposal system controlled by a microcomputer and adopting a rubber ball and a screw rod combination; in addition, the authorization bulletin number CN103758090B (Intelligent gate type automatic sewage disposal system and method for a shrimp intensive culture pond) provides an automatic sewage disposal system controlled by a flashboard and screw rod combination microcomputer, and the automatic sewage disposal system can realize timing automatic sewage disposal and have a simple overall structure. However, the device is affected by the reliability of mechanical transmission, and is difficult to carry out manual pollution discharge when the transmission mechanism is in fault in operation, and has insufficient flexibility; there is damage such as rubber ball, flashboard, forms the drainage of hidden water leakage nature, causes the risk of culture pond evacuation. Because of the need for a certain capital construction modification, the device is difficult to be widely applied to the existing high-level pool. Importantly, in the automatic sewage disposal device, large particles such as residual baits and excrement directly enter a sewage disposal main pipe and are smashed by a water pump in the process of lifting tail water, so that the subsequent treatment is not facilitated, and the residual baits and the excrement contain a considerable proportion of available components such as proteins and the like and can be further utilized after being collected. Therefore, the automatic pollution discharge device is developed, and solid pollutants such as residual baits, excrement and the like can be timely and effectively concentrated, separated and collected from the tail water, so that the automatic pollution discharge device has important significance in improving daily management of a high-density shrimp farm and promoting standard treatment of the tail water.
Disclosure of Invention
The invention aims to solve the technical problem of providing an automatic pollution discharge device and an automatic pollution discharge method for concentrating and collecting solid pollutants in a shrimp culture pond, wherein the automatic pollution discharge device can automatically discharge the solid pollutants such as residual baits, faeces and the like from tail water in time and effectively concentrate, separate and collect the solid pollutants.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides an automatic drain device of solid pollutant is collected in concentration of shrimp culture pond, includes that a bottom can insert the blowdown tube drawing on the outer blow off pipe end elbow of culture pond, the side wall round that the blowdown tube drawing is close to the bottom open and have a plurality of blowdown holes, the outer wall from the top down of blowdown tube drawing overlap in proper order and be equipped with fixed sleeve, can follow movable sleeve and telescopic movement's that the blowdown tube is gone up and down flexible hose, fixed sleeve with movable sleeve between be provided with the filter screen cage that is used for collecting solid pollutant, flexible hose's top with movable sleeve fixed connection, flexible hose's bottom be located the below of blowdown hole and with blowdown tube drawing fixed sealing connection, the top of blowdown tube drawing be provided with the drive control device that is used for controlling movable sleeve elevating movement.
Further, the driving control device comprises a direct current motor, an active synchronizing wheel, a positioning synchronizing wheel and a synchronous belt, wherein a rotating shaft of the direct current motor is connected with the active synchronizing wheel, the positioning synchronizing wheel is positioned under the active synchronizing wheel and fixed at the bottom of the sewage discharge tube drawing, the synchronous belt is in tensioning connection between the active synchronizing wheel and the positioning synchronizing wheel, the movable sleeve is fixedly connected with the synchronous belt, and the active synchronizing wheel drives the movable sleeve to do lifting motion through the synchronous belt.
Further, the top of blowdown tube drawing be provided with the block, direct current motor fix the inner wall of block, initiative synchronizing wheel be located the lateral wall of block, direct current motor be connected with time program controller, direct current motor be under time program controller control automatic timing forward or reverse rotation.
Further, the height of the fully elongated telescopic hose is close to the height of the sewage draining pulling pipe.
Further, a sealing ring is arranged between the bottom of the telescopic hose and the outer wall of the sewage discharge tube drawing. The bottom of the flexible hose is sealed with the sewage draining tube drawing, so that the internal water level of the flexible hose after being completely elongated is equal to the water level in the culture pond.
Further, the diameter of the movable sleeve is slightly larger than that of the drain drawing pipe, and the lowest position of the movable sleeve after descending is positioned below the drain hole. Avoiding shielding the sewage drain hole.
Further, when the movable sleeve descends to the lower part of the drain hole at the bottom of the drain pipe, the filter screen cage can completely cover the drain pipe, and a gap which is convenient for the external dip net to extend into the solid pollutant which is collected by cleaning concentration is arranged between the fixed sleeve and the outer wall of the drain pipe.
Further, the total area of the openings of the drain holes is larger than the cross-sectional area of the drain drawing pipe.
Further, the mesh size of the filter screen cage is 80-300 meshes.
The automatic pollution discharge method for concentrating and collecting solid pollutants by using the device comprises the following steps:
(1) The bottom of a drain pipe is inserted into a bent head at the tail end of a drain pipe outside a culture pond, the initial position of a movable sleeve is arranged at the top of the drain pipe, the water level in a telescopic hose is level with the water level in the culture pond, the set drain time is reached, a time program controller sends out a signal to control a direct current motor to reverse, a synchronous wheel drives the movable sleeve to descend below a drain hole at the bottom of the drain pipe, water in the telescopic hose is discharged after being filtered by a filter screen cage, the water level descends, the water level in the culture pond is higher than the water level in the telescopic hose, drainage is started under the action of water level difference, and discharged tail water is filtered by the filter screen cage, so that solid pollutants carried by the tail water are trapped and concentrated by the filter screen cage;
(2) After sewage is discharged for a certain time, the time program controller sends out a signal to control the direct current motor to rotate forward, the active synchronous wheel drives the movable sleeve to rise and return to the top initial position, the water level in the telescopic hose is gradually raised to be level with the water level in the culture pond, and sewage discharge is stopped; the bottom of the filter screen cage and the movable sleeve are synchronously lifted, the filter screen cage forms a U shape under the gravity action of the trapped solid pollutants in the filter screen cage, the solid pollutants are collected at the U-shaped bottom of the filter screen cage for further concentration and dehydration, and before the next sewage discharge, the solid pollutants dehydrated at the U-shaped bottom of the filter screen cage are fished out for further concentrated treatment by manually using a dip net, so that the automatic sewage discharge process is completed once;
(3) And (3) repeating the steps (1) - (2) under the control of the time program controller to realize the periodic automatic pollution discharge of the culture pond.
Compared with the prior art, the invention has the advantages that:
(1) The device can directly replace the original manual drainage tube drawing, can realize automatic drainage without the need of capital construction reconstruction, and can also still adopt the original manual tube drawing mode to carry out emergency drainage.
(2) The device solves the problem that a large amount of residual baits and feces are directly discharged into tail water in tube drawing and pollution discharge, can automatically concentrate, collect and dewater the residual baits and the feces in the pollution discharge process, and creates conditions for further recycling of the cultured solid wastes.
(3) The solid pollutant content in the sewage tail water in the cultivation is greatly reduced, and the pollutant load of a tail water treatment system is reduced from the source.
In summary, according to the automatic sewage draining device and the method for concentrating and collecting the solid pollutants in the shrimp culture pond, the automatic collecting device is arranged on the elbow of the sewage draining pipe, the filter screen cage can be lifted through the time program controller, automatic sewage draining can be carried out, residual bait and excrement carried in sewage can be filtered, concentrated and collected, and when the sewage is finished, the filter screen cage is automatically lifted to further dehydrate the residual bait and excrement intercepted and collected. The invention effectively solves the problem of environmental pollution caused by the fact that residual bait and feces directly enter the culture tail water in the original tube drawing and blow-down, can realize automatic blow-down, and obviously reduces the labor intensity of workers in daily blow-down; meanwhile, dehydrated solid residual bait and feces which can be used for recycling can be obtained.
Drawings
FIG. 1 is a schematic view of the structure of an automatic sewage disposal device in a non-drainage state;
FIG. 2 is a schematic view of the structure of the automatic drain device of the present invention in a drain state;
FIG. 3 is a schematic diagram of the connection relationship between the cap and the DC motor according to the present invention;
FIG. 4 is a schematic view of the overall structure of an embodiment of the invention, wherein the end elbow of the 1-blow-down pipe, the 2-blow-down pipe drawing, the 3-sealing ring, the 4-positioning synchronous wheel, the 5-synchronous belt, the 6-blow-down hole, the 7-telescopic hose, the 8-filter screen cage, the 9-movable sleeve, the 10-fixed sleeve, the 11-driving synchronous wheel, the 12-direct current motor, the 13-cover plate, the 14-time program controller, the 15-cultivation pond, the 16-blow-down main pipe and the 17-centralized blow-down outlet are adopted.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
Detailed description of the preferred embodiments
The utility model provides an automatic blowdown device of concentrated collection solid pollutant of shrimp breed pond 15, as shown in fig. 1 and 2, can insert in the blowdown extubation 2 on the terminal elbow 1 of breed pond 15 including a bottom, the lateral wall round that blowdown extubation 2 is close to the bottom is opened there is a plurality of blowdown holes 6, the outer wall from the top down of blowdown extubation 2 overlaps in proper order and is equipped with fixed sleeve 10, can follow the movable sleeve 9 and the telescopic flexible pipe 7 of telescopic motion that blowdown extubation 2 goes up and down, be provided with the filter screen cage 8 that is used for collecting solid pollutant between fixed sleeve 10 and the movable sleeve 9, telescopic pipe 7's top and movable sleeve 9 fixed connection, telescopic hose 7's bottom is located blowdown hole 6's below and with blowdown extubation 2 fixed sealing connection, blowdown extubation 2's top is provided with the drive control device that is used for controlling movable sleeve 9 elevating motion.
In this embodiment, the drive control device includes a dc motor 12, an active synchronizing wheel 11, a positioning synchronizing wheel 4 and a synchronous belt 5, where the rotation shaft of the dc motor 12 is connected with the active synchronizing wheel 11, the positioning synchronizing wheel 4 is located under the active synchronizing wheel 11 and the positioning synchronizing wheel 4 is fixed at the bottom of the drain tube drawing 2, the synchronous belt 5 is connected between the active synchronizing wheel 11 and the positioning synchronizing wheel 4 in a tensioning manner, the movable sleeve 9 is fixedly connected with the synchronous belt 5, and the active synchronizing wheel 11 drives the movable sleeve 9 to perform lifting motion through the synchronous belt 5. As shown in fig. 3, a cap is arranged at the top of the drain tube drawing 2, a dc motor 12 is fixed on the inner wall of the cap, an active synchronous wheel 11 is located on the outer side wall of the cap, the dc motor 12 is electrically connected with a time program controller 14, the dc motor 12 is automatically timed to forward or reverse under the control of the time program controller 14, and the time program controller 14 can be a PLC controller.
In this embodiment, as shown in fig. 1, the fully elongated flexible tube 7 has a height that approximates the height of the drain drawer 2. A sealing ring 3 is arranged between the bottom of the telescopic hose 7 and the outer wall of the sewage discharge tube drawing 2. The diameter of the movable sleeve 9 is slightly larger than that of the sewage draining pulling pipe 2, and the lowest position of the movable sleeve 9 after descending is positioned below the sewage draining hole 6. When the movable sleeve 9 descends to the lower part of the drain hole 6 at the bottom of the drain pipe drawing 2, the filter screen cage 8 can completely cover the drain pipe drawing 2, and a gap which is convenient for an external dip net to extend into solid pollutants (residual bait, excrement and the like) which are collected in a cleaning concentration is arranged between the fixed sleeve 10 and the outer wall of the drain pipe drawing 2. The mesh specification of the filter screen cage 8 is 80-300 meshes, and the total area of the openings of the drain holes 6 is larger than the cross-sectional area of the drain tube drawing 2.
The working principle is as follows: the device state is shown in figure 2 when the sewage is concentrated, and the rest time device state is shown in figure 1. Before sewage is discharged, the movable sleeve 9 is at the highest position, and the telescopic hose 7 is fully stretched, so that the water level in the sewage discharge tube drawing 2 is leveled with the water level in the culture pond 15. When sewage is discharged, the time program controller 14 sends out a control signal, the direct current motor 12 reverses, the driving synchronous wheel 11 drives the synchronous belt 5 to rotate, and the movable sleeve 9 fixed on the synchronous belt 5 continuously descends until the movable sleeve 9 descends below the sewage discharging hole 6 to stop. In the descending process of the movable sleeve 9, the telescopic hose 7 is continuously compressed, water in the sewage draining and pulling pipe 2 overflows from the upper part of the movable sleeve 9, is filtered by the filter screen cage 8 and then is discharged, and residual bait and feces carried in tail water are discharged from the tail elbow 1 of the sewage draining pipe of the culture pond 15 and are filtered and trapped by the filter screen cage 8. After the sewage is continuously discharged for a set time, the time program controller 14 sends out a control signal, the direct current motor 12 rotates positively, the active synchronous wheel 11 drives the synchronous belt 5 to rotate again, the movable sleeve 9 fixed on the synchronous belt 5 continuously ascends and returns to the initial height before sewage discharge, as shown in fig. 1. The flexible hose 7 is gradually stretched in the rising process, the water level in the sewage draining pulling pipe 2 rises synchronously until the water level is equal to the water level in the culture pond 15, the sewage draining is finished, and the waiting time program controller 14 sends a control signal to enter the next automatic sewage draining period. In the continuous rising process of the movable sleeve 9, the trapped residual bait and excrement in the filter screen cage 8 is lifted for further filtration and dehydration, and finally solid residual bait and excrement is formed, and before the next sewage discharge, the solid residual bait and excrement is manually fished out by using a dip net, and the filtration capacity is recovered for the next sewage discharge filtration. The fished solid residual bait and feces can be intensively treated for recycling. The flexible tube 7 may be a canvas tube or a plastic bellows having excellent stretchability.
Second embodiment
For the high-level culture pond 15 of a large water body, the device shown in the first embodiment is directly installed at the tail end elbow 1 of the blow-down pipe of the high-level culture pond for prawn to concentrate and collect solid pollutants, and the automatic blow-down method comprises the following steps:
(1) The bottom of the sewage draining pulling pipe 2 is inserted into an elbow 1 at the tail end of the sewage draining pipe outside the cultivation pond 15, the initial position of the movable sleeve 9 is arranged at the top of the sewage draining pulling pipe 2, the water level in the flexible hose 7 is equal to the water level in the cultivation pond 15, the set sewage draining time is reached, the time program controller 14 sends out a signal to control the direct current motor 12 to reversely rotate, the synchronous wheel drives the movable sleeve 9 to descend below a sewage draining hole 6 at the bottom of the sewage draining pulling pipe 2, water in the flexible hose 7 is discharged after being filtered by the filter screen cage 8, the water level is lowered, the water level in the cultivation pond 15 is higher than the water level in the flexible hose 7, water begins to drain under the action of water level difference, the discharged tail water is filtered by the filter screen cage 8, and the carried solid pollutants are trapped and concentrated by the filter screen cage 8;
(2) After sewage is discharged for a certain time, the time program controller 14 sends out a signal to control the direct current motor 12 to rotate forward, the active synchronous wheel 11 drives the movable sleeve 9 to ascend and return to the top initial position, the water level in the telescopic hose 7 gradually ascends to be level with the water level in the culture pond 15, and sewage discharge is stopped; the bottom of the filter screen cage 8 and the movable sleeve 9 are synchronously lifted, the filter screen cage 8 forms a U shape under the gravity action of the trapped solid pollutants in the filter screen cage 8, the solid pollutants are collected at the bottom of the U shape of the filter screen cage 8 for further concentration and dehydration, and before the next sewage discharge, the solid pollutants dehydrated at the bottom of the U shape of the filter screen cage 8 are fished out for further concentrated treatment by manually using a dip net, so that an automatic sewage discharge process is completed;
(3) And (3) repeating the steps (1) - (2) under the control of the time program controller 14 to realize the periodic automatic pollution discharge of the culture pond 15.
Detailed description of the preferred embodiments
As shown in FIG. 4, the industrial shrimp culture workshop has small specification of a single culture pond 15, but the number of culture ponds 15 is large, if each culture pond 15 in the workshop is provided with the device, the device is uneconomical and inconvenient to maintain and manage daily. The concentration and collection of solid pollutants such as residual bait and feces can be realized by adopting the following modes: the original pipe pulling and sewage draining mode is adopted for each cultivation pool 15, tail water enters the sewage draining main pipe 16, then the device is installed at the centralized sewage draining outlet 17 of each cultivation workshop, the specific operation mode is similar to the specific implementation, the operation time is only changed, namely, when the cultivation pool 15 starts to drain in the workshop, the movable sleeve 9 is required to descend, the concentration and sewage draining are started, and the movable sleeve 9 is lifted to stop the sewage draining until all the cultivation pools 15 in the workshop stop the sewage draining.
The above description is not intended to limit the invention, nor is the invention limited to the examples described above. Variations, modifications, additions, or substitutions will occur to those skilled in the art and are therefore within the spirit and scope of the invention.
Claims (8)
1. An automatic sewage disposal device for concentrating and collecting solid pollutants in a prawn culture pond is characterized in that: the device comprises a drain pipe which is inserted at the tail end elbow of a drain pipe outside a culture pond at the bottom, a plurality of drain holes are formed in a circle of side wall of the drain pipe close to the bottom, a fixed sleeve, a movable sleeve capable of lifting along the drain pipe and a telescopic flexible pipe capable of moving in a telescopic manner are sequentially sleeved on the outer wall of the drain pipe from top to bottom, a filter screen cage for collecting solid pollutants is arranged between the fixed sleeve and the movable sleeve, the top of the telescopic flexible pipe is fixedly connected with the movable sleeve, the bottom of the telescopic flexible pipe is positioned below the drain holes and is fixedly and hermetically connected with the drain pipe, and a driving control device for controlling the lifting movement of the movable sleeve is arranged at the top of the drain pipe; the utility model provides a sewage draining device, including a movable sleeve, a flexible hose, a filter screen cage, a fixed sleeve, a sewage draining tube, a movable sleeve, a fixed sleeve and a movable sleeve, wherein the movable sleeve is slightly larger than the sewage draining tube drawing diameter, the lowest position after the movable sleeve descends is located below the sewage draining hole, when the movable sleeve descends to the lower part of the sewage draining tube drawing hole at the bottom of the sewage draining tube drawing hole, the filter screen cage can be completely sleeved with the sewage draining tube drawing hole, a gap which is convenient for an external dip net to stretch into solid pollutants collected by cleaning concentration is arranged between the fixed sleeve and the outer wall of the sewage draining tube drawing hole, the movable sleeve descends to the lower part of the sewage draining tube drawing hole and stops, and water in the flexible hose is discharged after being filtered by the filter screen cage.
2. The automatic sewage disposal device for concentrating and collecting solid pollutants in a shrimp culture pond according to claim 1, wherein the automatic sewage disposal device is characterized in that: the driving control device comprises a direct current motor, an active synchronous wheel, a positioning synchronous wheel and a synchronous belt, wherein a rotating shaft of the direct current motor is connected with the active synchronous wheel, the positioning synchronous wheel is positioned under the active synchronous wheel and fixed at the bottom of a sewage discharge tube drawing, the synchronous belt is in tensioning connection between the active synchronous wheel and the positioning synchronous wheel, the movable sleeve is fixedly connected with the synchronous belt, and the active synchronous wheel drives the movable sleeve to perform lifting movement through the synchronous belt.
3. The automatic sewage disposal device for concentrating and collecting solid pollutants in a shrimp culture pond according to claim 2, wherein the automatic sewage disposal device is characterized in that: the top of blowdown tube drawing be provided with the block, direct current motor fix the inner wall of block, initiative synchronizing wheel be located the lateral wall of block, direct current motor be connected with time program controller, direct current motor be under time program controller control automatic timing forward or reverse rotation.
4. The automatic sewage disposal device for concentrating and collecting solid pollutants in a shrimp culture pond according to claim 1, wherein the automatic sewage disposal device is characterized in that: the height of the fully elongated flexible pipe is close to the height of the sewage draining tube drawing.
5. The automatic sewage disposal device for concentrating and collecting solid pollutants in a shrimp culture pond according to claim 1, wherein the automatic sewage disposal device is characterized in that: a sealing ring is arranged between the bottom of the telescopic hose and the outer wall of the sewage discharge tube drawing.
6. The automatic sewage disposal device for concentrating and collecting solid pollutants in a shrimp culture pond according to claim 1, wherein the automatic sewage disposal device is characterized in that: the total area of the openings of the sewage draining holes is larger than the cross-sectional area of the sewage draining tube drawing.
7. The automatic sewage disposal device for concentrating and collecting solid pollutants in a shrimp culture pond according to claim 1, wherein the automatic sewage disposal device is characterized in that: the mesh size of the filter screen cage is 80-300 meshes.
8. A method of automatic blowdown for concentrating and collecting solid contaminants using the apparatus of claim 2, comprising the steps of:
(1) The bottom of a drain pipe is inserted into a bent head at the tail end of a drain pipe outside a culture pond, the initial position of a movable sleeve is arranged at the top of the drain pipe, the water level in a telescopic hose is level with the water level in the culture pond, the set drain time is reached, a time program controller sends out a signal to control a direct current motor to reverse, a synchronous wheel drives the movable sleeve to descend below a drain hole at the bottom of the drain pipe, water in the telescopic hose is discharged after being filtered by a filter screen cage, the water level descends, the water level in the culture pond is higher than the water level in the telescopic hose, drainage is started under the action of water level difference, and discharged tail water is filtered by the filter screen cage, so that solid pollutants carried by the tail water are trapped and concentrated by the filter screen cage;
(2) After sewage is discharged for a certain time, the time program controller sends out a signal to control the direct current motor to rotate forward, the active synchronous wheel drives the movable sleeve to rise and return to the top initial position, the water level in the telescopic hose is gradually raised to be level with the water level in the culture pond, and sewage discharge is stopped; the bottom of the filter screen cage and the movable sleeve are synchronously lifted, the filter screen cage forms a U shape under the gravity action of the trapped solid pollutants in the filter screen cage, the solid pollutants are collected at the U-shaped bottom of the filter screen cage for further concentration and dehydration, and before the next sewage discharge, the solid pollutants dehydrated at the U-shaped bottom of the filter screen cage are fished out for further concentrated treatment by manually using a dip net, so that the automatic sewage discharge process is completed once;
(3) And (3) repeating the steps (1) - (2) under the control of the time program controller to realize the periodic automatic pollution discharge of the culture pond.
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| DE3815228C2 (en) * | 1988-05-05 | 1996-04-11 | Geiger Maschf Helmut | Separation system for separating contaminants carried in water and for separating these contaminants from living fish |
| US20080202998A1 (en) * | 2007-02-23 | 2008-08-28 | Kuo-Tang Tseng | Sewage treatment system for breeding system |
| CN100490640C (en) * | 2007-05-18 | 2009-05-27 | 中国科学院海洋研究所 | Twin pipe blowdown apparatus for breeding fish in plant |
| CN102696534B (en) * | 2012-06-29 | 2014-09-17 | 通威股份有限公司 | Foul drainage system at bottom of pond for culture |
| CN211379308U (en) * | 2019-12-02 | 2020-09-01 | 漳州闽辉铭智水产科技有限公司 | Automatic sewage discharge system of prawn culture pond |
| CN212650273U (en) * | 2020-04-29 | 2021-03-05 | 罗娟 | Fish manure recovery processing device for aquaculture |
| CN213784904U (en) * | 2020-06-15 | 2021-07-27 | 芜湖贵野水产养殖有限公司 | Sewage recycling lifter for freshwater shrimp culture |
| CN112715471A (en) * | 2020-12-11 | 2021-04-30 | 宁波大学 | Continuous concentration and pollution discharge device and method for shrimp culture system |
| CN112772538B (en) * | 2021-01-11 | 2022-09-09 | 宁波大学 | Shrimp pond rotary filtering, concentrating and pollution discharging device and method |
| CN214593646U (en) * | 2021-02-05 | 2021-11-05 | 北京艾克福克斯生态科技有限公司 | Aquatic crustacean exuviation and solid residue collection device |
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