A biological circulation purification device

Abstract

The present invention belongs to the technical field of sewage purification equipment, and in particular, relates to a biological circulation purification device, including a purification box and an activated sludge layer, wherein the bottom outer wall of the purification box is fixedly connected with a liquid guide tube, and the inner wall of the purification box is fixedly connected with a heat insulation board. The present invention enables the biological circulation purification device to not only have the functions of high-temperature concentration and sterilization of aquaculture wastewater, but also has the functions of temperature regulation of microbial purification of aquaculture wastewater, microbial anaerobic and high-oxygen environment regulation, and pressurization to accelerate the discharge of purified water bodies, which can ensure the safety of microorganisms in the activated sludge layer, and can effectively improve the efficiency of the device in treating aquaculture wastewater, thereby improving the effect and reliability of the device in treating aquaculture wastewater from small family farms. In addition, the device integrates the entire process of microbial treatment of aquaculture wastewater into an integrated device, reduces the footprint of the device, and facilitates the device to efficiently treat aquaculture wastewater, further avoiding the occurrence of environmental pollution that affects aquaculture safety.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage purification equipment, and in particular relates to a biological circulation purification device. Background Art

[0002] Biological cycle purification is a process that utilizes the interactions between various organisms in biological systems and the material circulation and energy flow between them and the environment to achieve the decomposition, transformation and removal of pollutants, thereby purifying the environment. In biological purification, microorganisms convert harmful substances into harmless substances through their own metabolic activities. It is widely used because of its environmental friendliness, high efficiency, low cost and sustainable use. For example, the patent authorization announcement number CN218709585U discloses an immersion biological cycle purification device.

[0003] At present, in order to promote rural economic development and agricultural industry upgrading, rural families are encouraged to open small farms. By opening small family farms, farmers' employment and family income can be increased. However, in the process of breeding, wastewater is often generated during the flushing of the house and the cleaning of feces. These wastewaters contain pathogens, organic matter, phosphorus, nitrogen, and feed and feces residues. Therefore, it is necessary to treat the wastewater to avoid direct discharge of wastewater and cause environmental pollution. However, due to the low investment of funds and weak environmental awareness of farmers, small family farms currently do not treat breeding wastewater thoroughly. At this stage, most small family farms treat breeding wastewater through filtering equipment, but the filtered water still contains pathogens, microorganisms, phosphorus and nitrogen and other elements. If these filtered wastewaters are directly discharged, harmful substances will accumulate excessively in the surrounding environment. Over time, it will still cause environmental pollution and may even cause outbreaks of harmful microorganisms, endangering the safety of the farms and affecting the effect and reliability of breeding wastewater treatment in small family farms.

[0004] Moreover, the existing wastewater biological purification equipment needs to be equipped with sedimentation tanks, aeration tanks, biological filters, disinfection tanks and corresponding connecting equipment, resulting in a large footprint of the entire purification equipment and high construction costs, making it unsuitable for the treatment of aquaculture wastewater in small family-type farms.

[0005] To this end, we propose a biological circulation purification device to solve the above problems. Summary of the invention

[0006] The object of the present invention is to provide a biological circulation purification device in view of the above problems.

[0007] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a biological circulation purification device, including a purification box and an activated sludge layer, the outer wall of the bottom end of the purification box is fixedly connected with a liquid guide tube, the inner wall of the purification box is fixedly connected with a heat insulation board, the bottom end of the heat insulation board is fixedly connected with a conical ceramic filter bucket, the bottom end of the conical ceramic filter bucket is fixedly connected with an internal threaded pipe, the pipe wall of the internal threaded pipe is threadedly connected with a hollow pipe cover, a rectangular mounting hole is opened on the lower surface of the heat insulation board, and an aeration mechanism is fixedly connected to the hole wall of the rectangular mounting hole, the activated sludge layer is located at the conical ceramic filter bucket At the bottom end, a heat-conducting coil is embedded together on the upper surfaces of the purification box and the insulation board, the tube wall of the heat-conducting coil is fixedly connected with a heat-conducting mesh tube, a plurality of through holes are opened on the upper surface of the purification box, and the hole walls of the through holes are fixedly connected with electric heating tubes, the heating ends of the electric heating tubes are in contact with the inner walls of the heat-conducting mesh tube, a feed pipe is fixedly connected to the upper surface of the purification box, and the top end of the feed pipe is fixedly connected with a connecting valve, the top end of the heat-conducting coil is fixedly connected with a condensing mechanism, the top end of the condensing mechanism is fixedly connected with the top end of the heat-conducting coil, and the outer wall of the condensing mechanism is fixedly connected with an air intake mechanism.

[0008] In the above-mentioned biological circulation purification device, the aeration mechanism includes a hollow block fixedly connected to the mounting hole at the bottom end of the insulation board, the bottom end of the hollow block is connected to a hollow rod through a sealed bearing, the rod wall of the hollow rod is fixedly sleeved with a first gear, the inner wall of the hollow block is connected to a fixing frame, the inner wall of the fixing frame is fixedly connected to a motor, the output end of the motor is fixedly connected to a second gear, the outer wall of the second gear is meshed with the outer wall of the first gear, the bottom end of the hollow rod is fixedly connected to a T-shaped hollow piece, and the outer wall of the T-shaped hollow piece is fixedly connected to A plurality of first one-way nozzles, the outer wall of the T-shaped hollow part is connected with a hollow cylinder through a sealing bearing, the outer wall of the T-shaped hollow part located inside the hollow cylinder is provided with an air inlet hole, the rod wall of the hollow rod is fixedly connected with two connecting pipes, the top ends of the two connecting pipes are fixedly connected with a conical hollow disk, a plurality of second one-way nozzles are fixedly embedded on the upper surface of the conical hollow disk, the outer wall of the conical hollow disk is fixedly connected with a connecting bearing, the inner wall of the conical ceramic filter bucket is provided with a groove matching with the connecting bearing, and the inner wall of the conical hollow disk is fixedly connected with a guide tube.

[0009] In the above-mentioned biological circulation purification device, the condensing mechanism includes a heat insulation cover fixedly sleeved with the outer wall of the purification box, the inner wall of the heat insulation cover is fixedly connected with a plurality of metal mesh plates, the top of the heat insulation cover is fixedly sleeved with the top of the heat conductive coil, the inner wall of the top of the heat conductive coil is fixedly connected with a first solenoid valve, the bottom end of the heat insulation cover is fixedly connected with a drain pipe, the bottom end of the drain pipe passes through the inner wall of the liquid guide pipe, the outer wall of the heat insulation cover is connected with a molecular sieve purifier, the inner wall of the discharge hole of the molecular sieve purifier is fixedly connected with an exhaust fan, the bottom end of the molecular sieve purifier is fixedly connected with a first conduit, the bottom end of the first conduit passes through the inner wall of the heat insulation cover, the inner wall of the bottom end of the first conduit is fixedly connected with a second solenoid valve, the outer wall of the bottom end of the first conduit is fixedly connected with a second conduit, the bottom end of the second conduit passes through the inner wall of the purification box and the conical ceramic filter bucket, and is fixedly connected with a third solenoid valve.

[0010] In the above-mentioned biological circulation purification device, the air intake mechanism includes an air intake box fixedly connected to the outer wall of the heat insulation cover, the inner wall of the air intake box is fixedly connected to two partitions, and the outer walls of the two partitions are jointly embedded with a plurality of vortex tubes, the outer wall of the air intake box located on the cold end side of the vortex tube is fixedly connected with a third conduit, the top of the third conduit is fixedly connected with a three-way pipe, one output end of the three-way pipe is fixedly connected with the top of the heat insulation cover, the other output end of the three-way pipe is fixedly connected with a fourth solenoid valve, the output end of the fourth solenoid valve is fixedly connected with a fourth conduit, the output end of the fourth conduit passes through the inner wall of the purification box and is fixedly connected with the outer wall of the hollow block, the outer wall of the air intake box located at the hot end of the vortex tube is fixedly connected with an exhaust pipe and an air guide pipe, the bottom end of the air guide pipe passes through the inner wall of the purification box and the conical ceramic filter bucket, and is fixedly connected with the outer wall of the hollow cylinder, the inner wall of the bottom end of the air intake box is fixedly embedded with an electric push rod, the moving end of the electric push rod is fixedly connected with a sealing block, and the outer wall of the air intake box is fixedly connected with an automatic control component and an air intake component.

[0011] In the above-mentioned biological circulation purification device, the automatic control component includes a control component fixedly connected to the outer wall of the air intake box, the outer wall of the hollow rod located at the guide pipe is fixedly embedded with a first temperature sensor component, the upper surface of the hollow tube cover is provided with a through hole, and the top of the hole wall of the through hole is connected to a conductive slip ring and a connecting plate, and the upper surface of the connecting plate is fixedly embedded with a second temperature sensor component and a wastewater concentration sensor component.

[0012] In the above-mentioned biological circulation purification device, the air intake component includes a connecting cover fixedly connected to the outer wall of the air intake box, the outer wall of the connecting cover is fixedly connected to an air pump, the suction end of the air pump is fixedly connected to the outer wall of the connecting cover through a bent pipe, the output end of the air pump is fixedly connected to a delivery pipe, the output end of the delivery pipe is fixedly connected to the outer wall of the air intake box located at the air intake end of the vortex tube, the outer wall of the connecting cover is fixedly embedded with a guide sleeve, the outer ends of the two guide sleeves are fixedly connected to an electromagnetic reversing valve, the outer wall of the guide sleeve is fixedly sleeved with an air pipe, and the two air pipes are fixedly connected with an oxygen-enriched membrane sleeve and a carbon dioxide air-permeable membrane sleeve.

[0013] In the above-mentioned biological circulation purification device, the outer walls of the two guide cylinders are both provided with threaded holes, and the hole walls of the threaded holes are threadedly connected with sealing plugs, and the inner walls of the guide cylinders are connected with sponge filter cylinders.

[0014] In the above-mentioned biological circulation purification device, the bottom end of the heat-conducting coil is located directly above the side edge of the conical hollow disk, and the upper surface of the conical hollow disk has an inclination angle of 30°-40°.

[0015] Compared with the existing technology, the advantages of a biological circulation purification device are:

[0016] 1. Through the air intake mechanism and control component, before the device treats the aquaculture wastewater, the control component is used to control the air pump and the fourth solenoid valve to open. The air pump inhales air through the air intake component, and then the air is transported to the vortex tube. After the air is treated, it is discharged through the cold and hot ends of the vortex tube. Then the low-temperature air is diverted to the heat insulation cover and the fourth conduit through the three-way pipe. The cold air at the fourth conduit is transported to the inside of the hollow block of the aeration mechanism, and part of the hot air at the hot end of the vortex tube is transported to the inside of the aeration mechanism through the air guide pipe, and the temperature at the activated sludge layer is increased. This mechanism enables the biological circulation purification device to control the temperature of the activated sludge in treating aquaculture wastewater and improve the efficiency of the device in treating aquaculture wastewater.

[0017] 2. Through the heat transfer coil, electric heating tube and condensation mechanism, when the aquaculture wastewater of a small family-type breeding farm needs to be treated, the aquaculture wastewater filtered by the filter equipment is first input into the heat transfer coil, and the electric heating tube is started by the control component at the same time. The electric heating tube heats the aquaculture wastewater and causes part of the water in the aquaculture wastewater to evaporate, thereby increasing the concentration of the aquaculture wastewater, thereby accelerating the efficiency of the biological treatment of the activated sludge layer, and then the evaporated water is introduced into the condensation mechanism. At the same time, the high temperature can also kill the pathogens in the aquaculture wastewater to prevent the pathogens from interfering with the effect of microbial treatment of wastewater in the activated sludge layer. This mechanism enables the biological circulation purification device to have the function of high-temperature concentration and sterilization of aquaculture wastewater, which can not only increase the concentration of aquaculture wastewater and accelerate the speed of microbial treatment, but also ensure the safety of microorganisms in the activated sludge layer, and improve the effect and reliability of aquaculture wastewater treatment in small family-type breeding farms.

[0018] 3. Through the aeration mechanism and air intake assembly, when the concentrated aquaculture wastewater is transported to the conical hollow disk, the aeration mechanism is first operated to accelerate the speed of the microorganisms in the active sewage layer to treat the aquaculture wastewater. At the same time, the cold air entering the hollow block is transported to the conical hollow disk through the hollow rod and the connecting pipe, thereby realizing the cooling of the aquaculture wastewater stored on the surface of the conical hollow disk. The aquaculture wastewater discharged from the guide pipe is also temperature-detected by the first temperature sensing assembly to avoid the high temperature of the aquaculture wastewater from endangering the safety of the microorganisms in the activated sludge layer. The hot air transported by the air guide pipe is sprayed out through the T-shaped hollow piece and the first one-way nozzle to increase the purification temperature of the microorganisms and aquaculture wastewater in the activated sludge layer, and is automatically controlled and adjusted by the control assembly at the same time.

[0019] In addition, the control components and air intake components can also realize the high oxygen environment and anaerobic environment regulation of microbial treatment of aquaculture wastewater, and accelerate the purification of organic matter, nitrogen and phosphorus elements in aquaculture wastewater. Finally, by increasing the acceleration of separation of purified water and activated sludge layer, this mechanism enables the biological circulation purification device to have the functions of temperature regulation of microbial purification of aquaculture wastewater, microbial anaerobic and high oxygen environment regulation, and pressurization to accelerate the discharge of purified water. It can effectively improve the efficiency of biological circulation purification device in treating aquaculture wastewater, and the device integrates the entire process of microbial treatment of aquaculture wastewater into an integrated device, which reduces the footprint of the device and facilitates the device to efficiently treat aquaculture wastewater, further avoiding environmental pollution that affects aquaculture safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a biological circulation purification device provided by the present invention;

[0021] Figure 2 It is a schematic diagram of a partial top view of a condensation mechanism in a biological circulation purification device provided by the present invention;

[0022] Figure 3It is a structural schematic diagram of a local automatic control component in a biological circulation purification device provided by the present invention;

[0023] Figure 4 It is a structural schematic diagram of an aeration mechanism in a biological circulation purification device provided by the present invention;

[0024] Figure 5 It is a structural schematic diagram of an air intake assembly in a biological circulation purification device provided by the present invention;

[0025] Figure 6 It is a structural schematic diagram of a sealing block part in a biological circulation purification device provided by the present invention.

[0026] In the figure: 1 purification box, 2 activated sludge layer, 3 liquid guide pipe, 4 heat insulation board, 5 aeration mechanism, 51 hollow block, 52 hollow rod, 53 first gear, 54 fixed frame, 55 motor, 56 second gear, 57 T-shaped hollow piece, 58 first one-way nozzle, 59 hollow cylinder, 510 air inlet, 511 connecting pipe, 512 conical hollow disk, 513 second one-way nozzle, 514 connecting bearing, 515 guide pipe, 6 condensation mechanism, 61 heat insulation cover, 62 metal mesh plate, 63 first solenoid valve, 64 drain pipe, 65 molecular sieve purifier, 66 exhaust fan, 67 first conduit, 68 second solenoid valve, 69 second conduit, 610 third solenoid valve, 7 air intake mechanism, 71 air intake box, 72 partition, 73 vortex tube, 74 The third conduit, 75 the three-way pipe, 76 the fourth solenoid valve, 77 the fourth conduit, 78 the discharge pipe, 79 the air guide pipe, 710 the electric push rod, 711 the sealing block, 8 the automatic control component, 81 the control component, 82 the first temperature sensor component, 83 the conductive slip ring, 84 the connecting plate, 85 the second temperature sensor component, 86 the wastewater concentration sensor component, 9 the air intake component, 91 the connecting cover, 92 the air pump, 93 the conveying pipe, 94 the guide tube, 95 the electromagnetic reversing valve, 96 the air pipe, 97 the oxygen-enriched membrane sleeve, 98 the carbon dioxide air-permeable membrane sleeve, 10 the conical ceramic filter bucket, 11 the internal threaded pipe, 12 the hollow tube cover, 13 the heat-conducting coil, 14 the heat-conducting mesh tube, 15 the electric heating tube, 16 the feed pipe, 17 the connecting valve, 18 the sealing plug, 19 the sponge filter tube. DETAILED DESCRIPTION

[0027] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0028] like Figure 1-Figure 6As shown, a biological circulation purification device includes a purification box 1 and an activated sludge layer 2, the outer wall of the bottom end of the purification box 1 is fixedly connected with a liquid guide tube 3, the inner wall of the purification box 1 is fixedly connected with a heat insulation board 4, the bottom end of the heat insulation board 4 is fixedly connected with a conical ceramic filter bucket 10, the bottom end of the conical ceramic filter bucket 10 is fixedly connected with an internal threaded pipe 11, the pipe wall of the internal threaded pipe 11 is threadedly connected with a hollow pipe cover 12, a rectangular mounting hole is opened on the lower surface of the heat insulation board 4, and an aeration mechanism 5 is fixedly connected to the hole wall of the rectangular mounting hole, the aeration mechanism 5 includes a hollow block 51 fixedly connected to the mounting hole at the bottom end of the heat insulation board 4, the bottom end of the hollow block 51 is connected with a hollow rod 52 through a sealed bearing, the rod wall of the hollow rod 52 is fixedly sleeved with a first gear 53, the inner wall of the hollow block 51 is connected with a fixing frame 54, the inner wall of the fixing frame 54 is fixedly connected with a motor 55, the output end of the motor 55 is fixedly connected with a second gear 56, and the outer wall of the second gear 56 is connected to the first gear The outer walls of 53 are meshed with each other, the bottom end of the hollow rod 52 is fixedly connected with a T-shaped hollow piece 57, the outer wall of the T-shaped hollow piece 57 is fixedly connected with a plurality of first one-way nozzles 58, the outer wall of the T-shaped hollow piece 57 is sleeved with a hollow cylinder 59 through a sealing bearing, and the outer wall of the T-shaped hollow piece 57 located inside the hollow cylinder 59 is provided with an air inlet 510, the rod wall of the hollow rod 52 is fixedly connected with two connecting pipes 511, the top ends of the two connecting pipes 511 are fixedly connected with a conical hollow disk 512, a plurality of second one-way nozzles 513 are fixedly embedded on the upper surface of the conical hollow disk 512, the outer wall of the conical hollow disk 512 is fixedly connected with a connecting bearing 514, the inner wall of the conical ceramic filter bucket 10 is provided with a groove matched with the connecting bearing 514, the inner wall of the conical hollow disk 512 is fixedly connected with a guide pipe 515, and the aeration mechanism 5 can improve the sufficient contact between the aquaculture wastewater and the microorganisms in the activated sludge layer 2, thereby improving the reliability of the device.

[0029] The activated sludge layer 2 is located at the bottom end of the conical ceramic filter bucket 10, and the upper surfaces of the purification box 1 and the insulation board 4 are jointly embedded with a heat-conducting coil 13, and the tube wall of the heat-conducting coil 13 is fixedly connected with a heat-conducting mesh tube 14. The upper surface of the purification box 1 is provided with a plurality of through holes, and the hole wall of the through hole is fixedly connected with an electric heating tube 15, and the heating end of the electric heating tube 15 contacts the inner wall of the heat-conducting mesh tube 14, and the upper surface of the purification box 1 is fixedly connected with a feed pipe 16, and the top of the feed pipe 16 is fixedly connected with a connecting valve 17, and the top of the heat-conducting coil 13 is fixedly connected with a condensing mechanism 6, and the condensing mechanism 6 includes a heat insulation cover 61 fixedly sleeved with the outer wall of the purification box 1, and the inner wall of the heat insulation cover 61 is fixedly connected with a plurality of metal mesh plates 62, and the top of the heat insulation cover 61 is fixedly sleeved with the top of the heat-conducting coil 13, and the inner wall of the top of the heat-conducting coil 13 is fixed. A first solenoid valve 63 is connected, a drain pipe 64 is fixedly connected to the bottom end of the heat insulation cover 61, the bottom end of the drain pipe 64 passes through the inner wall of the liquid guide tube 3, a molecular sieve purifier 65 is connected to the outer wall of the heat insulation cover 61, an exhaust fan 66 is fixedly connected to the inner wall of the discharge hole of the molecular sieve purifier 65, a first conduit 67 is fixedly connected to the bottom end of the molecular sieve purifier 65, the bottom end of the first conduit 67 passes through the inner wall of the heat insulation cover 61, the bottom inner wall of the first conduit 67 is fixedly connected to the second solenoid valve 68, the bottom outer wall of the first conduit 67 is fixedly connected to the second conduit 69, the bottom end of the second conduit 69 passes through the purification box 1 and the inner wall of the conical ceramic filter 10, and is fixedly connected to the third solenoid valve 610. This mechanism can liquefy water vapor and also purify overflowed polluted gases and odors, thereby improving the effect of the device in purifying aquaculture wastewater.

[0030] The top of the condensing mechanism 6 is fixedly connected to the top of the heat conducting coil 13, the outer wall of the condensing mechanism 6 is fixedly connected to the air intake mechanism 7, the air intake mechanism 7 includes an air intake box 71 fixedly connected to the outer wall of the heat insulation cover 61, the inner wall of the air intake box 71 is fixedly connected to two partitions 72, the outer walls of the two partitions 72 are jointly embedded with a plurality of vortex tubes 73, the outer wall of the air intake box 71 located on the cold end side of the vortex tube 73 is fixedly connected to a third conduit 74, the top of the third conduit 74 is fixedly connected to a three-way pipe 75, one output end of the three-way pipe 75 is fixedly connected to the top of the heat insulation cover 61, and the other output end of the three-way pipe 75 is fixedly connected to the top of the heat insulation cover 61. The outlet end is fixedly connected to a fourth solenoid valve 76, and the output end of the fourth solenoid valve 76 is fixedly connected to a fourth conduit 77. The output end of the fourth conduit 77 passes through the inner wall of the purification box 1 and is fixedly connected to the outer wall of the hollow block 51. The outer wall of the air intake box 71 at the hot end of the vortex tube 73 is fixedly connected to a discharge pipe 78 and an air guide pipe 79. The bottom end of the air guide pipe 79 passes through the inner wall of the purification box 1 and the conical ceramic filter bucket 10, and is fixedly connected to the outer wall of the hollow cylinder 59. An electric push rod 710 is fixedly embedded in the inner wall of the bottom end of the air intake box 71, and a sealing block 711 is fixedly connected to the moving end of the electric push rod 710.

[0031] The outer wall of the air intake box 71 is fixedly connected with an automatic control component 8, and the automatic control component 8 includes a control component 81 fixedly connected to the outer wall of the air intake box 71, and the outer wall of the hollow rod 52 located at the guide pipe 515 is fixedly embedded with a first temperature sensor component 82, and the upper surface of the hollow tube cover 12 is provided with a through hole, and the top of the hole wall of the through hole is connected with a conductive slip ring 83 and a connecting plate 84, and the upper surface of the connecting plate 84 is fixedly embedded with a second temperature sensor component 85 and a wastewater concentration sensor component 86.

[0032] An air intake assembly 9 is fixedly connected to the outer wall of the air intake box 71, and the air intake assembly 9 includes a connecting cover 91 fixedly connected to the outer wall of the air intake box 71, and an air pump 92 is fixedly connected to the outer wall of the connecting cover 91. The suction end of the air pump 92 is fixedly connected to the outer wall of the connecting cover 91 through a bend pipe, and the output end of the air pump 92 is fixedly connected to a delivery pipe 93, and the output end of the delivery pipe 93 is fixedly connected to the outer wall of the air intake box 71 located at the air intake end of the vortex tube 73. A guide cylinder 94 is fixedly embedded in the outer wall of the connecting cover 91, and the outer ends of the two guide cylinders 94 are fixedly connected to an electromagnetic reversing valve 95. The outer wall of the guide cylinder 94 is fixedly sleeved with a breathable tube 96, and the two breathable tubes 96 are fixedly connected with an oxygen-enriched membrane sleeve 97 and a carbon dioxide breathable membrane sleeve 98. This mechanism can realize a high-oxygen environment and an anaerobic environment for microbial treatment of aquaculture wastewater, and quickly treat organic matter, nitrogen and phosphorus elements in aquaculture wastewater through the high-oxygen environment and the anaerobic environment, thereby improving the efficiency of aquaculture wastewater purification.

[0033] The outer walls of the two guide cylinders 94 are each provided with a threaded hole, and the hole wall of the threaded hole is threadedly connected with a sealing plug 18, and the inner wall of the guide cylinder 94 is connected with a sponge filter cylinder 19, which can purify the air entering the air intake component 9. The bottom end of the heat-conducting coil 13 is located directly above the side edge of the conical hollow disk 512, and the upper surface of the conical hollow disk 512 has an inclination angle of 35°. The relatively inclined conical hollow disk 512 can increase the time that the aquaculture wastewater remains on the surface of the conical hollow disk 512, thereby accelerating the cooling effect of the aquaculture wastewater after heating.

[0034] The motor 55, the first solenoid valve 63, the exhaust fan 66, the second solenoid valve 68, the third solenoid valve 610, the fourth solenoid valve 76, the electric push rod 710, the electromagnetic reversing valve 95 and the electric heating tube 15 are all electrically connected to the output end of the control component 81 through a wire, and the first temperature sensing component 82, the second temperature sensing component 85 and the wastewater concentration sensing component 86 are all electrically connected to the input end of the control component 81 through a wire, wherein the first temperature sensing component 82 and the second temperature sensing component 85 are both temperature sensors, and the temperature sensors can convert temperature signals into electrical signals and transmit them to the control component 81. The wastewater concentration sensing component 86 includes a TOC sensor, a total nitrogen sensor and a total phosphorus sensor, which can respectively detect the content of organic matter, nitrogen and phosphorus elements in the wastewater, and the control component 81 is a plc controller, which can automatically control the operation of the corresponding execution components at the output end according to the input electrical signals. The above-mentioned equipment and electrical connections are all existing technologies and will not be repeated here.

[0035] The operating principle of the present invention is described as follows: before the device treats the aquaculture wastewater, the control component 81 first controls the air pump 92 and the fourth solenoid valve 76 to open, the air pump 92 sucks air through the air intake component 9, and then the air is transported to the vortex tube 73, and the air is discharged through the cold and hot ends of the vortex tube 73 after treatment. The cold end of the vortex tube 73 discharges low-temperature air of minus 5 to 10 degrees Celsius, and the hot end of the vortex tube 73 discharges hot air of 40-45 degrees Celsius. Then the low-temperature air is diverted to the heat insulation cover 61 and the fourth conduit 77 through the three-way pipe 75. The fourth conduit 77 The cold air at the aeration mechanism 5 is transported to the inside of the hollow block 51 of the aeration mechanism 5, and then this part of the cold air can be sprayed out through the conical hollow disk 512 and the second one-way nozzle 513 to cool the heated aquaculture wastewater. The cold air transported to the inside of the heat insulation cover 61 can reduce the temperature of the metal mesh plate 62, and the low-temperature metal mesh plate 62 can cool and liquefy the transported water vapor. Part of the hot air at the hot end of the vortex tube 73 is transported to the inside of the aeration mechanism 5 through the air guide pipe 79, and the temperature at the activated sludge layer 2 is increased, and the microbial treatment efficiency inside the activated sludge layer 2 is accelerated by increasing the temperature;

[0036] When the aquaculture wastewater of a small family farm needs to be treated, the aquaculture wastewater filtered by the filtering equipment is first transported to the heat-conducting coil 13 through the connecting valve 17 and the feed pipe 16, and the electric heating tube 15 is started by the control component 81. The heating temperature of the electric heating tube 15 is controlled within the range of 260-280 degrees Celsius. Then the electric heating tube 15 heats the heat-conducting coil 13 through the heat-conducting mesh tube 14. After the aquaculture wastewater enters the high-temperature heat-conducting coil 13, the high temperature can evaporate part of the aquaculture wastewater, thereby increasing the concentration of the aquaculture wastewater to be biologically treated, making it easier for the microorganisms in the activated sludge layer 2 to contact with the organic matter, nitrogen and phosphorus elements to be treated, so that the microorganisms can reproduce faster and promote the formation of biofilms, thereby accelerating the efficiency of microbial treatment of the activated sludge layer 2. Then the evaporated water is introduced into the condensing mechanism 6. At this time, the water vapor is contacted by the low-temperature metal mesh plate 62 and liquefied into water droplets. Finally, the water droplets pass through the drain pipe. 64 is discharged, and at the same time, the exhaust fan 66 is started through the control component 81. The exhaust fan 66 sucks the polluted gas and odor in the heat insulation cover 61 through the first conduit 67 and the second solenoid valve 68, and then the polluted gas and foreign matter are adsorbed and purified by the molecular sieve purifier 65. At the same time, the high temperature can also kill the pathogens in the aquaculture wastewater to prevent the pathogens from interfering with the effect of the microorganisms in the activated sludge layer 2 on the wastewater treatment. After that, the aquaculture wastewater discharged from the heat-conducting coil 13 is first transported to the edge side of the conical hollow disk 512 for cooling to prevent the high-temperature aquaculture wastewater from causing the inactivation of the microorganisms in the activated sludge layer 2. This mechanism enables the biological circulation purification device to have the function of high-temperature concentration and sterilization of aquaculture wastewater, which can not only increase the concentration of aquaculture wastewater and accelerate the microbial treatment speed, but also ensure the safety of the microorganisms in the activated sludge layer 2, thereby improving the efficiency of the biological circulation purification device in treating aquaculture wastewater, and improving the effect and reliability of aquaculture wastewater treatment in small-scale family farms.

[0037] When the concentrated aquaculture wastewater is transported to the conical hollow disk 512, the motor 55 is first started through the control component 81, and the motor 55 drives the hollow rod 52 to rotate through the first gear 53 and the second gear 56, and the hollow rod 52 drives the T-shaped hollow member 57 to rotate. The rotation of the T-shaped hollow member 57 can ensure that the aquaculture wastewater is fully in contact with the activated sludge layer 2, thereby accelerating the speed of microbial treatment of the activated sewage layer. At the same time, the cold air entering the hollow block 51 is transported to the conical hollow disk 512 through the hollow rod 52 and the connecting pipe 511, and is sprayed out through the second one-way nozzle 513, thereby achieving the purpose of treating the wastewater stored on the surface of the conical hollow disk 512. The aquaculture wastewater on the surface is cooled, and the cooled aquaculture wastewater is then discharged into the conical ceramic filter 10 through the guide pipe 515 to be biologically treated by the activated sludge layer 2. The aquaculture wastewater discharged from the guide pipe 515 is also temperature-detected by the first temperature sensor component 82. If the detected temperature exceeds 30 degrees Celsius and endangers the safety of microorganisms in the activated sludge layer 2, the temperature value detected by the first temperature sensor component 82 exceeds the temperature threshold preset in the control component 81. Then the control component 81 automatically adjusts the suction power of the suction pump 92 according to its own control program, thereby increasing the amount and pressure of air delivered to the vortex tube 73. , so that the temperature of the low-temperature air discharged from the cold end of the vortex tube 73 is reduced, and the hot air transported by the air guide pipe 79 is ejected through the T-shaped hollow member 57 and the first one-way nozzle 58, so as to increase the purification temperature of the microorganisms and the aquaculture wastewater in the activated sludge layer 2, and at the same time, the second temperature sensor component 85 and the wastewater concentration sensor component 86 are used for monitoring. If the temperature detected by the second temperature sensor component 85 exceeds 30 degrees Celsius, the control component 81 controls the electric push rod 710 to work, and the electric push rod 710 pushes the sealing block 711 to move to the air guide pipe 79, reduces the air inlet aperture at the top of the air guide pipe 79, thereby reducing the hot air in the air guide pipe 79. If the temperature detected by the second temperature sensor component 85 is lower than 18 degrees Celsius, the control component 81 controls the electric push rod 710 to drive the sealing block 711 away from the air duct 79, increasing the air inlet aperture at the top of the air duct 79, and at the same time increasing the amount of hot air entering the air duct 79, so as to achieve the purpose of regulating the temperature of the activated sludge layer 2. If the concentration of aquaculture wastewater monitored by the wastewater concentration sensor component 86 is too high, the control component 81 increases the rotation speed of the motor 55, thereby increasing the stirring speed of the T-shaped hollow member 57, so that the activated sludge layer 2 is fully in contact with the high-concentration aquaculture wastewater, thereby improving the microbial purification speed of the aquaculture wastewater;

[0038] In addition, in the early stage of the aquaculture wastewater being treated by the activated sludge layer 2, the control component 81 controls the air conduction direction of the electromagnetic reversing valve 95. When the air passes through the oxygen-enriched membrane sleeve 97, the oxygen in the air preferentially passes through the oxygen-enriched membrane sleeve 97 and the air permeable tube 96, and then is transported to the air inlet box 71. Then the high-oxygen air is transported to the inside of the device to accelerate the microorganisms in the activated sludge layer 2 to treat the organic matter and nitrogen elements in the aquaculture wastewater. In the late stage of the aquaculture wastewater being treated by the activated sludge layer 2, the control component 81 controls the air conduction direction of the electromagnetic reversing valve 95. When the air passes through the carbon dioxide breathable membrane sleeve 98, the carbon dioxide in the air preferentially passes through the carbon dioxide breathable membrane sleeve 98 and the air permeable tube 96, and then is transported to the air inlet box 71. The low-oxygen air is transported to the inside of the device to accelerate the microorganisms in the activated sludge layer 2 to treat the phosphorus elements in the aquaculture wastewater. After the aquaculture wastewater is purified, the detection signal of the wastewater concentration sensor component 86 is transmitted to the control component 81. Component 81 controls the first solenoid valve 63 and the third solenoid valve 610 to close, and then the air sprayed by the first one-way nozzle 58 and the second one-way nozzle 513 accumulates at the top of the conical ceramic filter bucket 10, thereby increasing the pressure inside the conical ceramic filter bucket 10 and accelerating the discharge of the purified water inside the conical ceramic filter bucket 10 from the filtration channel of the conical ceramic filter bucket 10, while the activated sludge layer 2 remains at the bottom of the conical ceramic filter bucket 10 for recycling. This mechanism enables the biological circulation purification device to have the functions of temperature control of microbial purification of aquaculture wastewater, microbial anaerobic and high oxygen environment control, and pressurization to accelerate the discharge of purified water, which can effectively improve the efficiency of the biological circulation purification device in treating aquaculture wastewater, and the device integrates the entire process of microbial treatment of aquaculture wastewater into an integrated device, reduces the footprint of the device, and facilitates the device to efficiently treat aquaculture wastewater, further avoiding environmental pollution that affects aquaculture safety.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A biological circulation purification device, comprising a purification tank (1) and an activated sludge layer (2), characterized in that: The outer wall at the bottom end of the purification box (1) is fixedly connected to a liquid guide tube (3), the inner wall of the purification box (1) is fixedly connected to a heat insulation board (4), the bottom end of the heat insulation board (4) is fixedly connected to a conical ceramic filter bucket (10), the bottom end of the conical ceramic filter bucket (10) is fixedly connected to an internally threaded pipe (11), the pipe wall of the internally threaded pipe (11) is threadedly connected to a hollow pipe cover (12), a rectangular mounting hole is formed on the lower surface of the heat insulation board (4), and an aeration mechanism (5) is fixedly connected to the hole wall of the rectangular mounting hole, the activated sludge layer (2) is located at the bottom end of the conical ceramic filter bucket (10), and the upper surfaces of the purification box (1) and the heat insulation board (4) are jointly embedded with a heat conduction coil ( 13), the tube wall of the heat-conducting coil (13) is fixedly connected to a heat-conducting mesh tube (14), the upper surface of the purification box (1) is provided with a plurality of through holes, and the hole walls of the through holes are fixedly connected to an electric heating tube (15), the heating end of the electric heating tube (15) is in contact with the inner wall of the heat-conducting mesh tube (14), the upper surface of the purification box (1) is fixedly connected to a feed pipe (16), and the top end of the feed pipe (16) is fixedly connected to a connecting valve (17), the top end of the heat-conducting coil (13) is fixedly connected to a condensing mechanism (6), the top end of the condensing mechanism (6) is fixedly connected to the top end of the heat-conducting coil (13), and the outer wall of the condensing mechanism (6) is fixedly connected to an air intake mechanism (7); The aeration mechanism (5) comprises a hollow block (51) fixedly connected to a mounting hole at the bottom end of the heat insulation plate (4); the bottom end of the hollow block (51) is connected to a hollow rod (52) via a sealed bearing; the rod wall of the hollow rod (52) is fixedly sleeved with a first gear (53); the inner wall of the hollow block (51) is connected to a fixing frame (54); the inner wall of the fixing frame (54) is fixedly connected to a motor (55); the output end of the motor (55) is fixedly connected to a second gear (56); the outer wall of the second gear (56) is meshed with the outer wall of the first gear (53); the bottom end of the hollow rod (52) is fixedly connected to a T-shaped hollow piece (57); the outer wall of the T-shaped hollow piece (57) is fixedly connected to a plurality of first one-way nozzles (58); The outer wall of the T-shaped hollow member (57) is sleeved with a hollow cylinder (59) via a sealing bearing; an air inlet hole (510) is provided on the outer wall of the T-shaped hollow member (57) located inside the hollow cylinder (59); the rod wall of the hollow rod (52) is fixedly connected to two connecting pipes (511); the top ends of the two connecting pipes (511) are fixedly connected to a conical hollow disk (512); a plurality of second one-way nozzles (513) are fixedly embedded on the upper surface of the conical hollow disk (512); a connecting bearing (514) is fixedly connected to the outer wall of the conical hollow disk (512); a groove matching the connecting bearing (514) is provided on the inner wall of the conical ceramic filter bucket (10); and a flow guide tube (515) is fixedly connected to the inner wall of the conical hollow disk (512); The condensing mechanism (6) comprises a heat insulating cover (61) fixedly sleeved with the outer wall of the purification box (1); the inner wall of the heat insulating cover (61) is fixedly connected to a plurality of metal mesh plates (62); the top end of the heat insulating cover (61) is fixedly sleeved with the top end of the heat conducting coil (13); the inner wall of the top end of the heat conducting coil (13) is fixedly connected to a first solenoid valve (63); the bottom end of the heat insulating cover (61) is fixedly connected to a drain pipe (64); the bottom end of the drain pipe (64) passes through the inner wall of the liquid guiding pipe (3); the outer wall of the heat insulating cover (61) is connected to a molecular sieve purifier (65); The inner wall of the discharge hole of the molecular sieve purifier (65) is fixedly connected to a blower (66); the bottom end of the molecular sieve purifier (65) is fixedly connected to a first conduit (67); the bottom end of the first conduit (67) passes through the inner wall of the heat insulation cover (61); the inner wall of the bottom end of the first conduit (67) is fixedly connected to a second solenoid valve (68); the outer wall of the bottom end of the first conduit (67) is fixedly connected to a second conduit (69); the bottom end of the second conduit (69) passes through the purification box (1) and the inner wall of the conical ceramic filter (10), and is fixedly connected to a third solenoid valve (610); The air intake mechanism (7) comprises an air intake box (71) fixedly connected to the outer wall of the heat insulation cover (61); the inner wall of the air intake box (71) is fixedly connected to two partitions (72); the outer walls of the two partitions (72) are jointly embedded with a plurality of vortex tubes (73); the outer wall of the air intake box (71) located at the cold end side of the vortex tube (73) is fixedly connected to a third conduit (74); the top end of the third conduit (74) is fixedly connected to a three-way pipe (75); one output end of the three-way pipe (75) is fixedly connected to the top end of the heat insulation cover (61); the other output end of the three-way pipe (75) is fixedly connected to a fourth solenoid valve (76); the output end of the fourth solenoid valve (76) is fixedly connected to a fourth conduit (74); The outer wall of the air intake box (71) located at the hot end of the vortex tube (73) is fixedly connected with an exhaust pipe (78) and an air guide pipe (79); the bottom end of the air guide pipe (79) passes through the inner wall of the purification box (1) and the conical ceramic filter bucket (10) and is fixedly connected with the outer wall of the hollow cylinder (59); an electric push rod (710) is fixedly embedded in the inner wall of the bottom end of the air intake box (71); the movable end of the electric push rod (710) is fixedly connected with a sealing block (711); and the outer wall of the air intake box (71) is fixedly connected with an automatic control component (8) and an air intake component (9); The automatic control component (8) comprises a control component (81) fixedly connected to the outer wall of the air intake box (71); a first temperature sensor component (82) is fixedly embedded in the outer wall of the hollow rod (52) at the guide pipe (515); a through hole is opened on the upper surface of the hollow pipe cover (12); a conductive slip ring (83) and a connecting plate (84) are connected to the top of the hole wall of the through hole; and a second temperature sensor component (85) and a wastewater concentration sensor component (86) are fixedly embedded in the upper surface of the connecting plate (84); The air intake assembly (9) comprises a connecting cover (91) fixedly connected to the outer wall of the air intake box (71); the outer wall of the connecting cover (91) is fixedly connected to an air pump (92); the air suction end of the air pump (92) is fixedly connected to the outer wall of the connecting cover (91) through a bent pipe; the output end of the air pump (92) is fixedly connected to a delivery pipe (93); the output end of the delivery pipe (93) is fixedly connected to the outer wall of the air intake box (71) at the air intake end of the vortex tube (73); a guide tube (94) is fixedly embedded in the outer wall of the connecting cover (91); the outer ends of the two guide tubes (94) are fixedly connected to an electromagnetic reversing valve (95); the outer wall of the guide tube (94) is fixedly sleeved with an air permeable tube (96); the two air permeable tubes (96) are fixedly connected to an oxygen-enriched membrane sleeve (97) and a carbon dioxide air permeable membrane sleeve (98).

2. A biological circulation purification device according to claim 1, characterized in that: The outer walls of the two guide cylinders (94) are each provided with a threaded hole, and the hole walls of the threaded hole are threadedly connected to a sealing plug (18), and the inner wall of the guide cylinder (94) is connected to a sponge filter cylinder (19).

3. A biological circulation purification device according to claim 1, characterized in that: The bottom end of the heat-conducting coil (13) is located directly above the side edge of the conical hollow disk (512), and the upper surface of the conical hollow disk (512) has an inclination angle of 30°-40°.

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