CN112591823B - Stirring device for wastewater treatment, wastewater treatment system and method - Google Patents
Stirring device for wastewater treatment, wastewater treatment system and method Download PDFInfo
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- CN112591823B CN112591823B CN202110223765.1A CN202110223765A CN112591823B CN 112591823 B CN112591823 B CN 112591823B CN 202110223765 A CN202110223765 A CN 202110223765A CN 112591823 B CN112591823 B CN 112591823B
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- 238000003756 stirring Methods 0.000 title claims abstract description 41
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims description 9
- 239000007788 liquid Substances 0.000 claims abstract description 361
- 238000002156 mixing Methods 0.000 claims abstract description 145
- 239000003814 drug Substances 0.000 claims abstract description 61
- 230000007246 mechanism Effects 0.000 claims abstract description 48
- 230000003068 static effect Effects 0.000 claims abstract description 18
- 239000002351 wastewater Substances 0.000 claims description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 46
- 239000003795 chemical substances by application Substances 0.000 claims description 35
- 238000007789 sealing Methods 0.000 claims description 29
- 238000006243 chemical reaction Methods 0.000 claims description 25
- 238000001514 detection method Methods 0.000 claims description 19
- 230000009471 action Effects 0.000 claims description 9
- 238000013019 agitation Methods 0.000 claims description 6
- 238000000746 purification Methods 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 5
- 239000000701 coagulant Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- 239000008394 flocculating agent Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000001960 triggered effect Effects 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000002518 antifoaming agent Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 239000000645 desinfectant Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- -1 demulsifier Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000010812 mixed waste Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
- B01F35/32—Driving arrangements
- B01F35/32005—Type of drive
- B01F35/3204—Motor driven, i.e. by means of an electric or IC motor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/40—Mounting or supporting mixing devices or receptacles; Clamping or holding arrangements therefor
- B01F35/43—Supporting receptacles on frames or stands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/716—Feed mechanisms characterised by the relative arrangement of the containers for feeding or mixing the components
- B01F35/7163—Feed mechanisms characterised by the relative arrangement of the containers for feeding or mixing the components the containers being connected in a mouth-to-mouth, end-to-end disposition, i.e. the openings are juxtaposed before contacting the contents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/305—Treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/004—Seals, connections
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The invention discloses a stirring device for wastewater treatment, a wastewater treatment system and a wastewater treatment method. The invention utilizes the inner engagement ratchet mechanism connecting the central rotating shaft and the rotating disc to be matched with the outer engagement ratchet mechanism connecting the rotating disc and the mixing tank, so that the same motor drives the two rotating discs in the forward rotation and keeps the two rotating discs static in the reverse rotation; and the opening and closing of the liquid inlet, the medicine adding port and the liquid outlet are realized by further utilizing the through holes eccentrically arranged on the liquid inlet turntable and the liquid outlet turntable, so that the functions of a plurality of valves are replaced. And because when the motor rotates reversely, the two turnplates are kept static, the same motor can be used for driving the stirring paddle under the condition of not influencing the opening and closing of the liquid inlet, the medicine adding port and the liquid outlet, and the four functions of liquid inlet, medicine adding, stirring and output are realized by the single motor. In addition, the invention enables the signal output by each photoelectric sensor to directly correspond to each working position of the central rotating shaft through the matching of one grating line and a plurality of photoelectric sensors.
Description
Technical Field
The invention belongs to the technical field of wastewater treatment, and particularly relates to a stirring device for wastewater treatment, a wastewater treatment system and a wastewater treatment method.
Background
In the field of wastewater treatment, the wastewater is often introduced into a tank and mixed with one or more agents (such as a coagulant and a coagulant aid); the tank body is required to be stirred by utilizing a motor to drive the paddle, and is also required to be provided with a liquid inlet valve, a liquid outlet valve and a plurality of valves for adding medicaments; the motor and each valve need the collaborative work, and equipment is complicated, convenient inadequately. If a plurality of actions of stirring, liquid inlet, liquid outlet and medicine adding can be realized by only using one motor, the cost of the wastewater treatment system can be obviously reduced.
Disclosure of Invention
The invention aims to provide a stirring device for wastewater treatment, a wastewater treatment system and a wastewater treatment method.
In a first aspect, the invention provides a stirring device for wastewater treatment, which comprises a mixing tank, a motor, a liquid inlet rotary table, a liquid outlet rotary table, an inner meshing ratchet mechanism, an outer meshing ratchet mechanism, a central rotating shaft and a stirring paddle. The central rotating shaft is supported in the mixing tank. One or more stirring paddles are fixed on the central rotating shaft. The central rotating shaft is driven by a motor to rotate.
A liquid inlet and a plurality of medicine adding ports are uniformly arranged at the top of the mixing tank along the circumferential direction of the central rotating shaft; a liquid outlet is arranged at the bottom of the mixing tank; the liquid inlet turntable is arranged at the top of the inner cavity of the mixing tank; the liquid outlet turntable is arranged at the bottom of the inner cavity of the mixing tank; the liquid inlet turntable is eccentrically provided with a liquid inlet through hole. The liquid outlet turntable is eccentrically provided with a liquid outlet through hole. When the liquid inlet turntable rotates for one circle relative to the mixing tank, the liquid inlet through holes sequentially pass through the liquid inlet and the medicine adding ports. The center distance between the liquid inlet through hole and the central rotating shaft is equal to the center distance between the liquid inlet of the mixing tank and each medicine adding port and the central rotating shaft; the center distance between the liquid outlet through hole and the central rotating shaft is equal to the center distance between the liquid outlet of the mixing tank and the central rotating shaft; when the liquid outlet turntable rotates for one circle relative to the mixing tank, the liquid outlet through hole passes through the lower part of the liquid outlet. When the liquid outlet through hole of the liquid outlet turntable is aligned with the liquid outlet of the mixing tank, the liquid inlet through hole of the liquid inlet turntable is not aligned with the liquid inlet and each dosing port.
And inner meshing ratchet mechanisms are arranged between the liquid inlet rotary table and the central rotating shaft and between the liquid outlet rotary table and the central rotating shaft. External-meshing ratchet mechanisms are arranged between the liquid inlet rotary table and the top surface of the inner cavity of the mixing tank and between the liquid outlet rotary table and the bottom surface of the inner cavity of the mixing tank. The direction of the central rotating shaft which is prevented by the inner meshing ratchet mechanism from rotating relative to the liquid inlet rotating disc or the liquid outlet rotating disc is opposite to the direction of the liquid inlet rotating disc or the liquid outlet rotating disc which is prevented by the outer meshing ratchet mechanism from rotating relative to the mixing tank.
Preferably, the mixing tank is further provided with a position detection module. The position detection module comprises a movable grating disc and a static detection disc. The movable grating disc is coaxially fixed with the central rotating shaft. The static detection plate is fixed on the top of the mixing tank. A grating line is arranged on the movable grating disk; the grating lines, the liquid inlet through holes and the liquid outlet through holes are aligned along the circumferential direction of the central rotating shaft. The static detection plate is provided with n +2 photoelectric sensors capable of detecting grating lines; n is the number of medicine adding openings. The n +2 photoelectric sensors are respectively aligned with the liquid inlet, the liquid outlet and the n medicine adding ports on the mixing tank.
Preferably, the photoelectric sensor is a diffuse reflection photoelectric switch or a correlation photoelectric sensor.
Preferably, the external meshing ratchet mechanism comprises a first ratchet wheel, a first pawl and a torsion spring. The first ratchet wheel is fixed on the outer circumferential surface of the liquid inlet turntable or the liquid outlet turntable. The ratchet ring of the first ratchet wheel is located in the outer side of the ratchet ring. One end of one or more first pawls is hinged with the inner cavity of the mixing tank, and the other end of the one or more first pawls abuts against a ratchet ring on the outer side of the first ratchet wheel. Torsion springs are arranged between the first pawls and the mixing tank; the torsion spring provides the first pawl with an elastic force against the ratchet ring outside the first ratchet wheel.
Preferably, the internal meshing ratchet mechanism comprises a shaft sleeve, a second ratchet wheel, a second pawl and a spring. The shaft sleeve is fixed with the central rotating shaft; the second ratchet wheel is fixed in the central hole of the liquid inlet turntable or the liquid outlet turntable. A plurality of second pawls are evenly distributed along the circumferential direction of the outer side surface of the shaft sleeve. The inner end of each second pawl is hinged with the shaft sleeve, and the outer end of each second pawl is propped against the ratchet ring at the inner side of the second ratchet wheel. Springs are arranged between the second pawls and the shaft sleeve; the spring provides the second pawl with a spring force against the ratchet ring of the second ratchet wheel.
Preferably, the liquid inlet and the bottoms of the dosing ports are embedded with first sealing rings. The top of the liquid outlet is embedded with a second sealing ring. The diameter of the first sealing ring is larger than that of the liquid inlet through hole on the liquid inlet turntable; the diameter of the second sealing ring is larger than that of the liquid outlet through hole on the liquid outlet turntable; the top surface of the liquid inlet rotary table props against each first sealing ring; the bottom surface of the liquid outlet turntable props against the second sealing ring.
Preferably, the first sealing ring and the second sealing ring are made of rubber, nylon or silica gel.
Preferably, one or more liquid level sensors are arranged in the mixing tank and used for judging the volume of the wastewater in the mixing tank.
Preferably, the liquid inlet turntable and the liquid outlet turntable are limited by shaft shoulders on the central rotating shaft. Thrust bearings are arranged between the liquid inlet rotary table and the liquid outlet rotary table and the shaft shoulders of the central rotating shaft.
In a second aspect, the invention provides a wastewater treatment system, which includes the aforementioned stirring device, and further includes a wastewater tank, a chemical storage container, and a reaction tank. The waste water tank is connected with the liquid inlet of the mixing tank through a liquid inlet pipe. The n medicament storage containers are respectively connected with the n medicament adding openings of the mixing tank through n medicament adding pipes, and n is the number of the medicament adding openings. The n medicament storage containers are filled with water treatment medicaments. The liquid inlet of the reaction tank is connected with the liquid outlet of the mixing tank through a liquid outlet pipe; the liquid outlet of the mixing tank is higher than the liquid inlet of the reaction tank.
Preferably, the water treatment agent is one or more of flocculating agent, coagulant aid, conditioning agent, demulsifier, defoaming agent, pH regulator, oxidation reducing agent, disinfectant and microbial flocculating agent.
Preferably, the outlet of the medicament storage container is higher than the dosing port of the mixing tank or each medicament storage container is connected to the mixing tank by a pump body.
Preferably, the reaction tank is internally provided with S-shaped galleries through staggered clapboards, so that the hydraulic retention time of the treated wastewater in the reaction tank is prolonged.
In a third aspect, the present invention provides a method for treating wastewater comprising the following steps.
Step one, inputting wastewater and water treatment agents.
1-1. the motor rotates forwards to drive the central rotating shaft to rotate forwards, and the central rotating shaft drives the liquid inlet rotating disc and the liquid outlet rotating disc to rotate through the internal engagement ratchet mechanism. And when the liquid inlet turntable rotates to align the liquid inlet through hole with the liquid inlet on the mixing tank, the motor stops rotating.
1-2, inputting the treated wastewater in the wastewater tank into a mixing tank.
1-3, after the volume of the treated wastewater in the mixing tank reaches a preset value, the motor drives the central rotating shaft to rotate forward again to drive the liquid inlet rotating disc and the liquid outlet rotating disc to rotate; when the feed liquor carousel rotated to the feed liquor through-hole and the work adds the medicine mouth and aligns, the motor all stalls and should add medicine mouthful corresponding predetermineeing and add medicine duration for various water treatment medicaments that need use carry in proper order and enter into the blending tank.
1-4, after the last water treatment agent to be added is added into the mixing tank, the motor drives the liquid inlet turntable and the liquid outlet turntable to rotate through positive rotation until the liquid outlet through hole of the liquid outlet turntable is staggered with the liquid outlet of the mixing tank, and the liquid inlet through hole of the liquid inlet turntable is staggered with the liquid inlet and each dosing port.
And step two, stirring and mixing.
The controller controls the motor to rotate reversely, the central rotating shaft and the stirring paddle are driven to rotate reversely, and the rotating stirring paddle is used for mixing and stirring the liquid in the mixing tank. At the moment, the liquid inlet rotary disc and the liquid outlet rotary disc are kept static under the locking of the external meshing ratchet mechanism. After stirring for a preset period of time, the motor stops rotating.
And step three, outputting the mixed wastewater.
The motor drives the central rotating shaft to rotate forwards, and the central rotating shaft drives the liquid inlet rotating disc and the liquid outlet rotating disc to rotate through the inner meshing ratchet mechanism. And stopping the motor until the liquid outlet turntable rotates until the liquid outlet through hole is aligned with the liquid outlet at the bottom of the mixing tank. The treated wastewater fully stirred and mixed with the water treatment agent in the mixing tank is output to the reaction tank under the action of gravity.
Step four, wastewater purification.
The treated wastewater input into the reaction tank flows along the S-shaped gallery and is subjected to water purification under the action of a water treatment agent. And meanwhile, continuously and repeatedly executing the steps from one step to three so that the treated wastewater is continuously stirred and mixed with the water treatment agent and is sent into the reaction tank.
The present invention has the following advantageous effects.
1. The invention utilizes the inner engagement ratchet mechanism connecting the central rotating shaft and the rotating disc to be matched with the outer engagement ratchet mechanism connecting the rotating disc and the mixing tank, so that the same motor drives the two rotating discs in the forward rotation and keeps the two rotating discs static in the reverse rotation; and the opening and closing of the liquid inlet, the medicine adding port and the liquid outlet are realized by further utilizing the through holes eccentrically arranged on the liquid inlet turntable and the liquid outlet turntable, so that the functions of a plurality of valves are replaced. And because when the motor rotates reversely, the two turnplates are kept static, the same motor can be used for driving the stirring paddle under the condition of not influencing the opening and closing of the liquid inlet, the medicine adding port and the liquid outlet, and the four functions of liquid inlet, medicine adding, stirring and output are realized by the single motor.
2. According to the invention, through the matching of one grating line and n +2 photoelectric sensors, signals output by the n +2 photoelectric sensors can directly correspond to n +2 working positions (one liquid inlet position, n medicine adding positions and one liquid outlet position) of the central rotating shaft, so that the control difficulty is obviously reduced.
3. The lower port of the liquid inlet pipe is provided with the first sealing ring, the upper port of the liquid outlet pipe is provided with the second sealing ring, and when the lower port of the liquid inlet pipe is aligned to the liquid inlet through hole of the liquid inlet turntable, the first sealing ring can better seal the water treatment agent entering the mixing tank from the liquid inlet pipe, reduce the loss of the water treatment agent in the process of entering the tank body and also reduce the mixed pollution caused by the mutual flow of the water treatment agent before entering the mixing tank; when the motor drives the water treatment medicament in the mixing tank of the stirring paddle, the second sealing ring can better reduce the volume of the liquid flowing out of the liquid outlet pipe at the moment, so that the mixing effect of the mixed liquid flowing out of the liquid outlet pipe is better.
Drawings
Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present invention.
Fig. 2 is an internal schematic view of embodiment 1 of the present invention.
Fig. 3 is a schematic connection diagram (from bottom to top) of the liquid inlet rotary table and the corresponding inner and outer meshing ratchet mechanisms in embodiment 1 of the present invention.
Fig. 4 is a schematic connection diagram (from top to bottom) of the liquid outlet turntable and the corresponding inner ratchet mechanism and outer ratchet mechanism in embodiment 1 of the present invention.
Fig. 5 is a schematic view of an internal ratchet mechanism in embodiment 1 of the present invention.
Fig. 6 is a schematic view illustrating installation of the first seal ring in embodiment 1 of the present invention.
Fig. 7 is a schematic view illustrating the installation of the second seal ring in embodiment 1 of the present invention.
Fig. 8 is a schematic structural diagram of a detection module in embodiment 2 of the present invention.
Fig. 9 is a schematic structural diagram of a movable grating disk in embodiment 2 of the present invention.
Fig. 10 is a schematic structural diagram of a static detection disk in embodiment 2 of the present invention.
Fig. 11 is a schematic view of the overall structure of embodiment 6 of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Example 1
As shown in fig. 1 and 2, a stirring device for wastewater treatment comprises a lower support 1, a mixing tank 2, a motor 2-1, a liquid inlet pipe 3, a liquid outlet pipe 4, a dosing pipe 10, a liquid inlet turntable 5, a liquid outlet turntable 6, an internal engagement ratchet mechanism 7, an external engagement ratchet mechanism 8, a central rotating shaft 9, a stirring paddle 9-1 and a controller. The mixing tank 2 is fixedly arranged on the lower support 1; a vertically arranged central spindle 9 is supported in a central position in the mixing tank 2. One or more paddles 9-1 are fixed to the central shaft 9 for agitating the liquid in the mixing tank 2. The motor 2-1 is fixed at the top end of the mixing tank 2, and a main shaft of the motor 2-1 is fixed with the top end of the central rotating shaft 9.
The top of the mixing tank 2 is uniformly provided with a liquid inlet and three medicine adding ports along the circumferential direction of the central rotating shaft 9; the liquid inlet can be connected to the treated wastewater through a liquid inlet pipe 3; each dosing port can be connected to different medicament storage containers through three dosing tubes 10; a liquid outlet is arranged at the bottom of the mixing tank 2; the liquid outlet can be connected to a temporary storage tank or the next water treatment process through a liquid outlet pipe 4. The liquid inlet, the liquid outlet and each medicine adding opening are staggered with the central rotating shaft 9. The liquid inlet rotary table 5 is arranged at the top of the inner cavity of the mixing tank 2; the liquid outlet rotary table 6 is arranged at the bottom of the inner cavity of the mixing tank 2; the axes of the liquid inlet rotary disc 5 and the liquid outlet rotary disc 6 are superposed with the axis of the central rotating shaft 9. In the vertical direction, the liquid inlet rotary table 5 and the liquid outlet rotary table 6 are both limited by a shaft shoulder on the central rotating shaft 9. Thrust bearings are arranged between the shaft shoulders of the liquid inlet rotary table 5, the liquid outlet rotary table 6 and the central rotating shaft 9. The liquid inlet turntable 5 is eccentrically provided with a liquid inlet through hole 5-1. The liquid outlet turntable 6 is eccentrically provided with a liquid outlet through hole 6-1.
When the liquid inlet turntable 5 rotates for one circle relative to the mixing tank 2, the liquid inlet through holes 5-1 sequentially pass through the liquid inlet and the lower parts of the three dosing ports. When the liquid outlet rotary disc 6 rotates for one circle relative to the mixing tank 2,the liquid outlet through hole can pass through the lower part of the liquid outlet. The sequence of the two processes is 'liquid inlet → three medicine adding openings → liquid outlet'. The upper port of the liquid outlet is formed at the position on the circumference of the mixing tank 2 and the position of the liquid inlet on the circumference of the mixing tank 2θThe dislocation of the angle is realized,θthe angle is smaller than the included angle of the two adjacent liquid inlets or the medicine adding openings along the circumferential direction. When the liquid outlet through hole of the liquid outlet rotary table 6 is aligned with the liquid outlet of the mixing tank 2, the liquid inlet through hole 5-1 of the liquid inlet rotary table 5 is not aligned with the liquid inlet and each dosing port. Thereby avoiding the situation that liquid inlet and liquid outlet occur simultaneously. When the liquid inlet through hole 5-1 reaches the liquid inlet of the mixing tank 2 or the lower part of one of the medicine adding ports; the treated wastewater or water treatment agent corresponding to the liquid inlet or the drug adding port can be input into the mixing tank 2 through the liquid inlet through hole 5-1; when the liquid outlet through hole 6-1 reaches the upper part of the liquid outlet of the mixing tank 2, the mixed wastewater in the mixing tank 2 can flow out of the mixing tank 2 through the liquid outlet through hole 6-1 and the liquid outlet pipe 4.
Inner meshing ratchet mechanisms 7 are arranged between the liquid inlet rotary table 5 and the central rotating shaft 9 and between the liquid outlet rotary table 6 and the central rotating shaft 9. Outer meshing ratchet mechanisms 8 are arranged between the liquid inlet rotary table 5 and the top surface of the inner cavity of the mixing tank 2 and between the liquid outlet rotary table 6 and the bottom surface of the inner cavity of the mixing tank 2. The inner meshing ratchet mechanism 7 enables the liquid inlet rotary table 5 and the liquid outlet rotary table 6 to rotate relative to the central rotating shaft 9 only in one direction. The external engagement ratchet mechanism 8 enables the liquid inlet rotary disc 5 and the liquid outlet rotary disc 6 to rotate relative to the middle mixing tank 2 only in one direction. The direction in which the central rotary shaft 9 is allowed to rotate relative to the feed rotor disc 5 is opposite to the direction in which the feed rotor disc 5 is allowed to rotate relative to the mixing tank 2. The direction in which the central rotating shaft 9 is allowed to rotate relative to the liquid outlet rotary disc 6 is opposite to the direction in which the liquid outlet rotary disc 6 is allowed to rotate relative to the mixing tank 2. The inlet turntable 5 and the outlet turntable 6 are allowed to rotate in the same direction relative to the central rotating shaft 9.
The mutual matching of the internal engagement ratchet mechanism 7 and the external engagement ratchet mechanism 8 is the technical core of the invention. When the central rotating shaft 9 rotates reversely (clockwise in fig. 3, counterclockwise in fig. 4, the central rotating shaft 9 can rotate relative to the two rotating discs in the direction), the central rotating shaft 9 cannot drive the liquid inlet rotating disc 5 and the liquid outlet rotating disc 6 to rotate; since the external engagement ratchet mechanism 8 limits the rotation of the liquid inlet rotary table 5 and the liquid outlet rotary table 6 in the direction, the liquid inlet rotary table 5 and the liquid outlet rotary table 6 can be kept completely static when the central rotating shaft 9 rotates forwards; at this time, the central rotating shaft 9 only drives the stirring paddle 9-1 to rotate, so as to realize stirring.
When the central rotating shaft 9 rotates forward (counterclockwise in fig. 3, clockwise in fig. 4, the central rotating shaft 9 cannot rotate relative to the two rotating discs in the direction), the central rotating shaft 9 drives the liquid inlet rotating disc 5 and the liquid outlet rotating disc 6 to rotate together; since the external engagement ratchet mechanism 8 allows the liquid inlet rotary disc 5 and the liquid outlet rotary disc 6 to rotate in the direction, the rotation of the liquid inlet rotary disc 5 and the liquid outlet rotary disc 6 is not hindered. At the moment, the positions of the liquid inlet through hole 5-1 on the liquid inlet rotary table 5 and the liquid outlet through hole 6-1 on the liquid outlet rotary table 6 are changed; when the liquid inlet through hole 5-1 is aligned with different liquid inlets or medicine adding ports, the input of the wastewater or the water treatment medicine can be realized; when the liquid outlet through hole 6-1 is aligned with the liquid outlet, the mixed waste water can be output. Therefore, the functions of inputting the treated wastewater, adding a water treatment agent and outputting the mixed wastewater can be realized by controlling the arrival positions of the liquid inlet rotary disc 5 and the liquid outlet rotary disc 6.
As shown in fig. 3 and 4, the external engagement ratchet mechanism 8 includes a first ratchet 8-1, a first pawl 8-2, and a torsion spring 8-3. The first ratchet wheel 8-1 is fixed on the outer circumferential surface of the liquid inlet turntable 5 or the liquid outlet turntable 6. The first ratchet wheel 8-1 is integrally formed with the liquid inlet rotary disc 5 or the liquid outlet rotary disc 6. The ratchet ring of the first ratchet wheel 8-1 is located in the outer side of itself. One end of one or more first pawls 8-2 is hinged with the inner cavity of the mixing tank 2, and the other end abuts against a ratchet ring gear on the outer side of the first ratchet wheel 8-1. A torsion spring 8-3 is arranged between each first pawl 8-2 and the mixing tank 2; the torsion spring 8-3 provides the first pawl 8-2 with a spring force against the ratchet ring outside the first ratchet wheel 8-1. The first ratchet wheel 8-1 can rotate only in one direction relative to the mixing tank 2 under the restriction of the first pawl 8-2.
As shown in fig. 5, the internal ratchet mechanism 7 includes a sleeve 7-1, a second ratchet 7-2, a second pawl 7-3, and a spring 7-4. The shaft sleeve 7-1 is connected with the top end or the bottom end of the central rotating shaft 9 through a spline; the second ratchet wheel 7-2 is fixed in the central hole of the liquid inlet turntable 5 or the liquid outlet turntable 6. The ratchet ring of the second ratchet wheel 7-2 is positioned in the central hole of the ratchet ring. A plurality of second pawls 7-3 are uniformly distributed along the circumferential direction of the outer side surface of the sleeve 7-1. The inner end of each second pawl 7-3 is hinged with the shaft sleeve 7-1, and the outer end of each second pawl is propped against the ratchet ring at the inner side of the second ratchet wheel 7-2. A spring 7-4 is arranged between each second pawl 7-3 and the shaft sleeve 7-1; the spring 7-4 adopts a compression spring to provide the second pawl 7-3 with the elastic force of the ratchet ring which is propped against the inner side of the second ratchet wheel 7-2. The second ratchet wheel 7-2 can rotate only in one direction relative to the central rotating shaft 9 under the restriction of the second pawl 7-3.
As shown in fig. 6 and 7, the liquid inlet and the bottoms of the medicine adding ports are provided with first annular grooves; a first sealing ring 2-2 is embedded in each first annular groove. The top of the liquid outlet is provided with a second annular groove; a second sealing ring 2-3 is embedded in the second annular groove. The diameter of the first sealing ring 2-2 is larger than that of a liquid inlet through hole on the liquid inlet turntable 5; the diameter of the second sealing ring 2-3 is larger than that of the liquid outlet through hole on the liquid outlet turntable 6; the top surface of the liquid inlet rotary table 5 props against each first sealing ring 2-2; the bottom surface of the liquid outlet turntable 6 props against the second sealing ring 2-3; the first sealing ring 2-2 and the second sealing ring 2-3 are made of rubber, nylon or silica gel. The first sealing ring 2-2 can prevent redundant water treatment agents or treated wastewater from leaking into the mixing tank, so that the amount of the water treatment agents overflowing into the mixing tank 2 through the liquid inlet pipe 3 is reduced, and the volume error of the water treatment agents added into the mixing tank 2 is reduced; the second sealing ring 2-3 can reduce the overflow of the treated wastewater and the water treatment agent which are not completely mixed in the mixing tank 2 from the liquid outlet pipe 4.
The controller controls the motor 2-1 to switch between forward rotation and reverse rotation.
As an optional technical scheme, one or more liquid level sensors are arranged in the mixing tank and used for judging the volume of the wastewater in the mixing tank.
Example 2
As shown in fig. 8, 9 and 10, the present embodiment is different from embodiment 1 in that: the motor 2-1 and the mixing tank 2 are fixed through a motor bracket 11. The motor bracket 11 elevates the motor, so that a detection installation position is reserved between the motor and the mixing tank 2. The liquid inlet through hole 5-1 and the liquid outlet through hole 6-1 are aligned along the circumferential direction of the central rotating shaft 9.
A position detection module is arranged in the detection installation position. The position detection module comprises a movable grating disk 12 and a static detection disk 13. The movable grating disk 12 is coaxially fixed with the central rotating shaft 9. A static test plate 13 is fixed to the top of the mixing tank 2. A radial grating line 12-1 is arranged on the movable grating disk 12; the grating line 12-1 is aligned with the liquid inlet through hole 5-1 and the liquid outlet through hole 6-1 along the circumferential direction of the central rotating shaft 9. Five photoelectric sensors 13-1 are arranged on the static detection disc 13; the five photoelectric sensors 13-1 are respectively aligned with the liquid inlet, the liquid outlet and the three medicine adding ports on the mixing tank 2. The photoelectric sensor 13-1 employs a diffuse reflection photoelectric switch. When the grating line 12-1 is aligned with one of the photosensors 13-1, the photosensor 13-1 changes from being shaded to being unshaded, thereby outputting a signal. The five photoelectric sensors 13-1 are respectively defined as a liquid inlet sensor, a liquid outlet sensor, a first medicine adding sensor, a second medicine adding sensor and a third medicine adding sensor.
When the liquid inlet sensor is triggered (is changed from being shielded to not being shielded), the liquid inlet through hole 5-1 on the liquid inlet rotary disc 5 is aligned with the liquid inlet on the mixing tank 2, and treated wastewater can be input. When the liquid outlet sensor is triggered (is changed from being shielded to not being shielded), the liquid outlet through hole 6-1 on the liquid outlet rotary disc 6 is aligned with the liquid outlet on the mixing tank 2, and the treated wastewater is output. When any one of the first dosing sensor, the second dosing sensor and the third dosing sensor is triggered (changed from being shielded to not being shielded), the liquid inlet through hole 5-1 on the liquid inlet rotary disc 5 is aligned with the corresponding dosing port on the mixing tank 2, and corresponding water treatment agent can be input. When none of the five photoelectric sensors 13-1 is triggered, the treated wastewater and the water treatment agent are not input, and the wastewater is not output, and this state is used for stirring and mixing the wastewater.
The output interface of each photoelectric sensor 13-1 is connected to the controller; the controller can judge whether the stirring device reaches a target position through signals output by the photoelectric sensors 13-1, so that the liquid inlet, the medicine adding and the liquid outlet actions are realized; in the embodiment, a negative feedback system is formed by adjusting the positions of the liquid inlet turntable and the liquid outlet turntable, so that the reliability of control is ensured, and the requirement on motor control is simplified.
Example 3
This example differs from example 2 in that: each photoelectric sensor 13-1 adopts a correlation type photoelectric sensor (preferably a U-shaped photoelectric sensor); the emitting part and the receiving part of each correlation type photoelectric sensor are respectively positioned at two sides of the movable grating disk.
Example 4
This example differs from example 2 in that: the motor 2-1 is not elevated. The central rotating shaft 9 penetrates out of the bottom of the mixing tank 2 and is placed and leaked through the sealing ring; the detection module is installed at the bottom of the mixing tank 2.
Example 5
This example differs from example 1 in that: each dosing pipe 10 is connected to a different coagulant or coagulant aid agent storage container 16. The mixing tank 2 is used for mixing wastewater flowing into the sedimentation tank with various coagulants and coagulant aids, and the liquid outlet pipe 4 is connected with the sedimentation tank, so that the input wastewater is fully mixed with various coagulants and coagulant aids, and the mixing tank is used for a wastewater treatment link to precipitate pollutants in the wastewater.
Example 6
As shown in FIG. 11, a wastewater treatment system comprising the agitation apparatus as described in any one of examples 1 to 5, further comprising a wastewater tank 14, a lift pump 15, a chemical storage container 16, and a reaction tank 17. A lift pump 15 is installed at the bottom of the wastewater tank 14. The liquid outlet of the lift pump 15 is connected with the liquid inlet of the mixing tank through a liquid inlet pipe. Three medicament storage containers 16 are connected to three dosing ports of the mixing tank through three dosing tubes 10, respectively.
The three agent storage containers 16 contain different water treatment agents. The specific type of the water treatment agent is selected according to the type of the treated wastewater, and a flocculating agent, a coagulant aid, a conditioner, a demulsifier, a defoaming agent, a pH regulator, an oxidation reducing agent, a disinfectant and a microbial flocculating agent can be selected. The outlet opening of the medicament storage containers 16 is higher than the dosing opening of the mixing tank or each medicament storage container 16 is connected to the mixing tank by a pump. So that the water treatment agent can be smoothly added to the mixing tank.
A liquid inlet of the reaction tank 17 is connected with a liquid outlet of the mixing tank through a liquid outlet pipe; the liquid outlet of blending tank is higher than the inlet of reaction tank 17 to can utilize gravity to make the liquid that accomplishes in the blending tank and mix all export to reaction tank 17 in. The reaction tank 17 is internally provided with S-shaped galleries through the baffle plates 17-1 which are arranged in a staggered way, so that the hydraulic retention time of the treated wastewater in the reaction tank is increased.
The wastewater treatment method for the wastewater treatment system comprises the following steps.
Step one, inputting wastewater and water treatment agents.
1-1, the controller controls the motor 2-1 to rotate forwards (anticlockwise in figure 3 and clockwise in figure 4) to drive the central rotating shaft 9 to rotate forwards, and the central rotating shaft 9 drives the liquid inlet rotating disc 5 and the liquid outlet rotating disc 6 to rotate through the internal engagement ratchet mechanism 7 (in the direction, the external engagement ratchet mechanism 8 does not lock left and right). And stopping the motor 2-1 until the liquid inlet turntable 5 rotates until the liquid inlet through hole 5-1 is aligned with a liquid inlet on the mixing tank.
1-2, starting a lifting pump 15, and leading the treated wastewater in the wastewater tank 14 into a mixing tank.
1-3, after the volume of the treated wastewater in the mixing tank reaches a preset value, the lift pump 15 is closed. Meanwhile, the controller controls the motor 2-1 to rotate forwards again, and the central rotating shaft 9 drives the liquid inlet rotating disc 5 and the liquid outlet rotating disc 6 to rotate through the internal engagement ratchet mechanism 7; when the liquid inlet turntable 5 rotates to the state that the liquid inlet through hole 5-1 is aligned with the working dosing port, the motor 2-1 stops rotating the corresponding preset dosing time length of the dosing port, so that various water treatment medicaments to be used sequentially pass through the self gravity or the pump to be conveyed into the mixing tank.
1-4, after the last water treatment agent to be added is added into the mixing tank, the motor 2-1 drives the liquid inlet rotary table 5 and the liquid outlet rotary table 6 to rotate through positive rotation until the liquid outlet through hole 6-1 of the liquid outlet rotary table 6 is staggered with the liquid outlet of the mixing tank 2, and the liquid inlet through hole 5-1 of the liquid inlet rotary table 5 is staggered with the liquid inlet and each dosing port.
And step two, stirring and mixing.
The controller controls the motor 2-1 to rotate reversely to drive the central rotating shaft 9 and the stirring paddle 9-1 to rotate reversely, and the rotating stirring paddle 9-1 mixes and stirs the liquid in the mixing tank 2. At the moment, the liquid inlet rotary disc 5 and the liquid outlet rotary disc 6 are kept static under the locking of the outer meshing ratchet mechanism 8, and the treated wastewater and the water treatment agent cannot enter the mixing tank 2, and the wastewater cannot be discharged. After stirring for a preset time, stopping the motor 2-1.
And step three, outputting the mixed wastewater.
The controller controls the motor 2-1 to rotate forwards to drive the central rotating shaft 9 to rotate forwards, and the central rotating shaft 9 drives the liquid inlet rotating disc 5 and the liquid outlet rotating disc 6 to rotate through the internal engagement ratchet mechanism 7 (in the direction, the external engagement ratchet mechanism 8 does not lock left and right). And stopping the motor 2-1 until the liquid outlet turntable 6 rotates until the liquid outlet through hole 6-1 is aligned with a liquid outlet at the bottom of the mixing tank. The wastewater to be treated, which is fully stirred and mixed with the water treatment agent in the mixing tank, is output to the reaction tank 17 under the action of gravity.
Step four, wastewater purification.
The wastewater to be treated fed into the reaction tank 17 flows along the S-shaped gallery and undergoes water purification by the action of the water treatment agent. The water body purification can be one or more of flocculation, precipitation after an insoluble phase relative to water is generated through a chemical reaction, degradation, catalytic oxidation or reduction of organic matters under the action of microorganisms, and can also be other water treatment modes.
Meanwhile, the steps one to three are continuously and repeatedly executed, so that the treated wastewater is continuously stirred and mixed with the water treatment agent and is sent into the reaction tank 17.
If the stirring device in embodiment 2 or 3 is selected, in the step one, the liquid inlet through hole 5-1 of the liquid inlet rotary table 5 is aligned with the liquid inlet and each dosing port, and the liquid outlet through hole 6-1 of the liquid outlet rotary table 6 is aligned with the liquid outlet of the mixing tank 2, and the five photoelectric sensors 13-1 are respectively used for detecting the grating lines for judgment.
Claims (10)
1. A stirring device for wastewater treatment comprises a mixing tank (2), a motor (2-1), a central rotating shaft (9) and a stirring paddle (9-1); the method is characterized in that: the device also comprises a liquid inlet rotary table (5), a liquid outlet rotary table (6), an inner meshing ratchet mechanism (7) and an outer meshing ratchet mechanism (8); the central rotating shaft (9) is supported in the mixing tank (2); one or more stirring paddles (9-1) are fixed on the central rotating shaft (9); the central rotating shaft (9) is driven by the motor (2-1) to rotate;
a liquid inlet and a plurality of medicine adding ports are uniformly arranged at the top of the mixing tank (2) along the circumferential direction of the central rotating shaft (9); a liquid outlet is arranged at the bottom of the mixing tank (2); the liquid inlet turntable (5) is arranged at the top of the inner cavity of the mixing tank (2); the liquid outlet turntable (6) is arranged at the bottom of the inner cavity of the mixing tank (2); the liquid inlet turntable (5) is eccentrically provided with a liquid inlet through hole (5-1); a liquid outlet through hole (6-1) is eccentrically arranged on the liquid outlet turntable (6); the center distance between the liquid inlet through hole (5-1) and the central rotating shaft (9) is equal to the center distance between the liquid inlet of the mixing tank (2) and each medicine adding port and the central rotating shaft (9); the center distance between the liquid outlet through hole (6-1) and the central rotating shaft (9) is equal to the center distance between the liquid outlet of the mixing tank (2) and the central rotating shaft (9); when the liquid outlet through hole of the liquid outlet turntable (6) is aligned with the liquid outlet of the mixing tank (2), the liquid inlet through hole (5-1) of the liquid inlet turntable (5) is not aligned with the liquid inlet and each dosing port;
inner meshing ratchet mechanisms (7) are arranged between the liquid inlet rotary table (5) and the central rotating shaft (9) and between the liquid outlet rotary table (6) and the central rotating shaft (9); external meshing ratchet mechanisms (8) are arranged between the liquid inlet rotary table (5) and the top surface of the inner cavity of the mixing tank (2) and between the liquid outlet rotary table (6) and the bottom surface of the inner cavity of the mixing tank (2); the direction of the internal engagement ratchet mechanism (7) for preventing the central rotating shaft (9) from rotating relative to the liquid inlet rotating disc (5) or the liquid outlet rotating disc (6) is opposite to the direction of the external engagement ratchet mechanism (8) for preventing the liquid inlet rotating disc (5) or the liquid outlet rotating disc (6) from rotating relative to the mixing tank (2).
2. An agitation apparatus for wastewater treatment according to claim 1, wherein: the mixing tank (2) is also provided with a position detection module; the position detection module comprises a movable grating disc (12) and a static detection disc (13); the movable grating disc (12) is coaxially fixed with the central rotating shaft (9); the static detection disc (13) is fixed at the top of the mixing tank (2); a grating line (12-1) is arranged on the movable grating disk (12); the grating line (12-1), the liquid inlet through hole (5-1) and the liquid outlet through hole (6-1) are aligned along the circumferential direction of the central rotating shaft (9); n +2 photoelectric sensors (13-1) capable of detecting the grating lines (12-1) are arranged on the static detection disc (13); n is the number of medicine adding openings; the n +2 photoelectric sensors (13-1) are respectively aligned with the liquid inlet, the liquid outlet and the n medicine adding ports on the mixing tank (2).
3. An agitation apparatus for wastewater treatment according to claim 1 or 2, characterized in that: the external engagement ratchet mechanism (8) comprises a first ratchet wheel (8-1), a first pawl (8-2) and a torsion spring (8-3); the first ratchet wheel (8-1) is fixed on the outer circumferential surface of the liquid inlet turntable (5) or the liquid outlet turntable (6); the ratchet ring of the first ratchet wheel (8-1) is positioned in the outer side of the ratchet ring; one end of one or more first pawls (8-2) is hinged with the inner cavity of the mixing tank (2), and the other end of the one or more first pawls is propped against a ratchet ring gear on the outer side of the first ratchet wheel (8-1); torsion springs (8-3) are arranged between the first pawls (8-2) and the mixing tank (2); the torsion spring (8-3) provides the first pawl (8-2) with elasticity against the ratchet ring outside the first ratchet wheel (8-1).
4. An agitation apparatus for wastewater treatment according to claim 1 or 2, characterized in that: the inner meshing ratchet mechanism (7) comprises a shaft sleeve (7-1), a second ratchet wheel (7-2), a second pawl (7-3) and a spring (7-4); the shaft sleeve (7-1) is fixed with the central rotating shaft (9); the second ratchet wheel (7-2) is fixed in the central hole of the liquid inlet turntable (5) or the liquid outlet turntable (6); a plurality of second pawls (7-3) are uniformly distributed along the circumferential direction of the outer side surface of the shaft sleeve (7-1); the inner end of each second pawl (7-3) is hinged with the shaft sleeve (7-1), and the outer end of each second pawl is propped against the ratchet ring at the inner side of the second ratchet wheel (7-2); springs (7-4) are arranged between the second pawls (7-3) and the shaft sleeve (7-1); the spring (7-4) provides the second pawl (7-3) with the elastic force of the ratchet ring abutting against the second ratchet wheel (7-2).
5. An agitation apparatus for wastewater treatment according to claim 1 or 2, characterized in that: the bottoms of the liquid inlet and the medicine adding openings are respectively embedded with a first sealing ring (2-2); a second sealing ring (2-3) is embedded at the top of the liquid outlet; the diameter of the first sealing ring (2-2) is larger than that of a liquid inlet through hole on the liquid inlet turntable (5); the diameter of the second sealing ring (2-3) is larger than that of the liquid outlet through hole on the liquid outlet turntable (6); the top surface of the liquid inlet rotary table (5) props against the first sealing rings (2-2); the bottom surface of the liquid outlet turntable (6) is propped against the second sealing ring (2-3).
6. An agitation apparatus for wastewater treatment according to claim 1 or 2, characterized in that: one or more liquid level sensors are arranged in the mixing tank; the liquid inlet turntable (5) and the liquid outlet turntable (6) are limited by shaft shoulders on the central rotating shaft (9); thrust bearings are arranged between the liquid inlet rotary table (5) and the liquid outlet rotary table (6) and the shaft shoulders of the central rotating shaft (9).
7. A wastewater treatment system comprises a wastewater tank (14), a medicament storage container (16) and a reaction tank (17); the method is characterized in that: further comprising a stirring device according to claim 1 or 2; the waste water tank (14) is connected with the liquid inlet of the mixing tank (2) through a liquid inlet pipe; the n medicament storage containers (16) are respectively connected with the n medicament adding openings of the mixing tank through n medicament adding pipes (10), and n is the number of the medicament adding openings; the n medicament storage containers (16) are filled with water treatment medicaments; a liquid inlet of the reaction tank (17) is connected with a liquid outlet of the mixing tank through a liquid outlet pipe; the liquid outlet of the mixing tank is higher than the liquid inlet of the reaction tank (17).
8. The wastewater treatment system according to claim 7, wherein: the output port of the medicament storage container (16) is higher than the dosing port of the mixing tank or each medicament storage container (16) is connected to the mixing tank through a pump body.
9. The wastewater treatment system according to claim 7, wherein: the reaction tank (17) is internally provided with S-shaped galleries through baffle plates (17-1) which are arranged in a staggered way.
10. The method for treating wastewater in a wastewater treatment system according to claim 9, wherein: step one, inputting wastewater and water treatment agents;
1-1, a motor (2-1) rotates forwards to drive a central rotating shaft (9) to rotate forwards, and the central rotating shaft (9) drives a liquid inlet rotating disc (5) and a liquid outlet rotating disc (6) to rotate through an inner meshing ratchet mechanism (7); the motor (2-1) stops rotating until the liquid inlet turntable (5) rotates until the liquid inlet through hole (5-1) is aligned with a liquid inlet on the mixing tank;
1-2, inputting the treated wastewater in a wastewater pool (14) into a mixing tank;
1-3, after the volume of the treated wastewater in the mixing tank reaches a preset value, the motor (2-1) drives the central rotating shaft (9) to rotate forwards again to drive the liquid inlet rotating disc (5) and the liquid outlet rotating disc (6) to rotate; when the liquid inlet turntable (5) rotates until the liquid inlet through hole (5-1) is aligned with the working dosing port, the motor (2-1) stops rotating for a preset dosing time corresponding to the dosing port, so that various water treatment medicaments to be used are sequentially conveyed into the mixing tank;
1-4, after the last water treatment agent to be added is added into the mixing tank, the motor (2-1) drives the liquid inlet turntable (5) and the liquid outlet turntable (6) to rotate through positive rotation until the liquid outlet through hole (6-1) of the liquid outlet turntable (6) is staggered with the liquid outlet of the mixing tank (2), and the liquid inlet through hole (5-1) of the liquid inlet turntable (5) is staggered with the liquid inlet and each dosing port of the mixing tank (2);
step two, stirring and mixing;
the controller controls the motor (2-1) to rotate reversely to drive the central rotating shaft (9) and the stirring paddle (9-1) to rotate reversely, and the rotating stirring paddle (9-1) mixes and stirs the liquid in the mixing tank (2); at the moment, the liquid inlet rotary table (5) and the liquid outlet rotary table (6) are kept static under the locking of an external engagement ratchet mechanism (8); after stirring for a preset time, stopping the motor (2-1);
step three, outputting the mixed wastewater;
the motor (2-1) drives the central rotating shaft (9) to rotate forwards, and the central rotating shaft (9) drives the liquid inlet rotating disc (5) and the liquid outlet rotating disc (6) to rotate through the internal engagement ratchet mechanism (7); the motor (2-1) stops rotating until the liquid outlet turntable (6) rotates until the liquid outlet through hole (6-1) is aligned with a liquid outlet at the bottom of the mixing tank; the treated wastewater which is fully stirred and mixed with the water treatment agent in the mixing tank is output to a reaction tank (17) under the action of gravity;
step four, purifying the waste water;
the treated wastewater input into the reaction tank (17) flows along the S-shaped gallery and is subjected to water purification under the action of a water treatment agent; meanwhile, the steps one to three are continuously and repeatedly executed, so that the treated wastewater is continuously stirred and mixed with the water treatment agent and is sent into the reaction tank (17).
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| CN113562887A (en) * | 2021-08-30 | 2021-10-29 | 江苏力达自动化设备有限公司 | Totally enclosed intelligence water purification unit |
| CN113813858B (en) * | 2021-11-10 | 2023-01-31 | 西安国际医学中心有限公司 | Compounding device of painful plaster preparation of treatment cancer |
| CN115404027A (en) * | 2022-07-15 | 2022-11-29 | 常州科莱恩新材料有限公司 | Preparation method of emulsion waterproof glue for building and stirring device thereof |
| CN115742078B (en) * | 2022-11-23 | 2023-08-04 | 万绿达(天津)再生资源利用有限公司 | Waste plastic recycling and granulating device and method |
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| WO2016157645A1 (en) * | 2015-03-31 | 2016-10-06 | 株式会社クボタ | Rapid stirring machine |
| JP2019520214A (en) * | 2016-08-23 | 2019-07-18 | ▲呉▼云萍ＷＵ， Ｙｕｎｐｉｎｇ | High-performance tubular coagulation mixer and dosing stirrer |
| CN106865715B (en) * | 2017-03-28 | 2020-08-25 | 徐州工程学院 | Sewage coagulation filler and using method thereof |
| CN206965583U (en) * | 2017-07-14 | 2018-02-06 | 陕西国防工业职业技术学院 | A kind of flocculant agitating device |
| CN211435958U (en) * | 2019-11-30 | 2020-09-08 | 河南鼎能电子科技有限公司 | Single-drive forward and reverse rotation stirring machine |
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Effective date of registration: 20231109 Address after: Room A3, floor 1-3, No. 217-225, Hongcao South Road, Xuhui District, Shanghai 200030 Patentee after: SHANGHAI JINDUO YUCHEN WATER ENVIRONMENT ENGINEERING Co.,Ltd. Address before: 230000 floor 1, building 2, phase I, e-commerce Park, Jinggang Road, Shushan Economic Development Zone, Hefei City, Anhui Province Patentee before: Dragon totem Technology (Hefei) Co.,Ltd. Effective date of registration: 20231109 Address after: 230000 floor 1, building 2, phase I, e-commerce Park, Jinggang Road, Shushan Economic Development Zone, Hefei City, Anhui Province Patentee after: Dragon totem Technology (Hefei) Co.,Ltd. Address before: Hangzhou City, Zhejiang province 310018 Xiasha Higher Education Park forest Street No. 16 Patentee before: HANGZHOU NORMAL UNIVERSITY QIANJIANG College |