CN110902787A - Fluidized bed precipitation device and sewage treatment system thereof - Google Patents
Fluidized bed precipitation device and sewage treatment system thereof Download PDFInfo
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- CN110902787A CN110902787A CN201911092026.2A CN201911092026A CN110902787A CN 110902787 A CN110902787 A CN 110902787A CN 201911092026 A CN201911092026 A CN 201911092026A CN 110902787 A CN110902787 A CN 110902787A
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- 239000010865 sewage Substances 0.000 title claims abstract description 62
- 238000001556 precipitation Methods 0.000 title claims abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 93
- 239000010802 sludge Substances 0.000 claims abstract description 34
- 238000003756 stirring Methods 0.000 claims abstract description 29
- 238000007599 discharging Methods 0.000 claims description 25
- 239000006247 magnetic powder Substances 0.000 claims description 25
- 230000015271 coagulation Effects 0.000 claims description 24
- 238000005345 coagulation Methods 0.000 claims description 24
- 239000000725 suspension Substances 0.000 claims description 22
- 238000004062 sedimentation Methods 0.000 claims description 18
- 238000007790 scraping Methods 0.000 claims description 16
- 238000005070 sampling Methods 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 238000004064 recycling Methods 0.000 claims description 12
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 230000007246 mechanism Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 6
- 230000004888 barrier function Effects 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 6
- 230000008021 deposition Effects 0.000 claims 3
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 239000002994 raw material Substances 0.000 claims 1
- 238000004065 wastewater treatment Methods 0.000 claims 1
- 230000000903 blocking effect Effects 0.000 abstract description 11
- 230000008901 benefit Effects 0.000 abstract description 5
- 238000005189 flocculation Methods 0.000 description 9
- 230000016615 flocculation Effects 0.000 description 9
- 238000011084 recovery Methods 0.000 description 7
- 239000003814 drug Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000013049 sediment Substances 0.000 description 2
- -1 and the physical Substances 0.000 description 1
- 238000010170 biological method Methods 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
-
- 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
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
- C02F1/488—Treatment of water, waste water, or sewage with magnetic or electric fields for separation of magnetic materials, e.g. magnetic flocculation
-
- 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
- C02F2001/007—Processes including a sedimentation step
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- Chemical & Material Sciences (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)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention provides a fluidized bed precipitation device and a sewage treatment system thereof, wherein the fluidized bed precipitation device comprises an outer shell, wherein the outer shell is of a hollow structure with an opening at the top, the hollow structure forms an accommodating cavity, and the bottom of the outer shell is provided with a sludge discharge device; the cover body is connected with the outer shell and seals the opening of the outer shell; the inner shell is arranged at the lower part of the accommodating cavity and is of a hollow structure with an opening at the top, the hollow structure forms a stirring cavity, the bottom of the inner shell is connected with a water inlet pipe, and the water inlet pipe is communicated with the inner shell and the outer shell; the water collecting tank is arranged at the upper part of the accommodating cavity, the side wall of the water collecting tank is hermetically connected with the side wall of the outer shell, a water outlet pipe is connected outside the water collecting tank, and the water outlet pipe is provided with a water outlet valve; the stirrer is provided with a stirring rod which penetrates through the cover body and extends into the stirring cavity; and the blocking piece is arranged in the accommodating cavity and positioned between the inner shell and the water collecting tank, and the blocking piece is fixedly connected with the side wall of the outer shell. The fluidized bed precipitation device provided by the invention has the advantages of high precipitation speed and high precipitation efficiency, and can provide quality guarantee for sewage treatment.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a fluidized bed precipitation device and a sewage treatment system thereof.
Background
The sewage treatment is a process for purifying sewage to meet the water quality requirement of discharging the sewage into a certain water body or reusing the sewage, and the physical, chemical and biological methods are utilized to treat the sewage to purify the sewage and reduce pollution so as to achieve the purposes of recovering and reusing the sewage. At present, the fluidized bed is a sewage treatment process with wider application. A fluidized bed is a reactor in which solid particles are in a suspended state by passing a gas or liquid through a granular solid layer and a gas-solid reaction process or a liquid-solid reaction process is performed.
In the current sewage treatment process, the sedimentation rate and the sedimentation effect of the fluidized bed are main influencing factors of sewage treatment. However, most of the existing fluidized bed for sewage treatment is settled and flocculated in a shell, the settling rate is slow, the settling effect is poor, and in some cases, floccules in the suspension layer penetrate through the suspension layer and enter the upper water-eliminating layer, so that the purification quality of the upper water is affected.
Therefore, a fluidized bed precipitation device with high precipitation rate and good precipitation effect is needed.
Disclosure of Invention
The invention aims to provide a fluidized bed precipitation device with high precipitation efficiency and good precipitation effect.
In order to achieve the above object, the present invention provides a fluidized bed precipitation apparatus comprising:
the mud discharging device comprises an outer shell, a mud discharging device and a mud discharging device, wherein the outer shell is of a hollow structure with an opening at the top, an accommodating cavity is formed in the hollow structure of the outer shell, and the mud discharging device is arranged at the bottom of the outer shell;
a cover connected to the outer case and sealing an opening of the outer case;
the inner shell is arranged at the lower part of the accommodating cavity and is of a hollow structure with an opening at the top, the hollow structure of the inner shell forms a stirring cavity, the bottom of the inner shell is connected with a water inlet pipe, and the water inlet pipe is communicated with the inner shell and the outer shell;
the water collecting tank is arranged at the upper part of the accommodating cavity, the side wall of the water collecting tank is hermetically connected with the side wall of the outer shell, a water outlet pipe is connected outside the water collecting tank, and the water outlet pipe is provided with a water outlet valve;
the stirrer is provided with a stirring rod which penetrates through the cover body and extends into the stirring cavity;
the stop piece is arranged in the accommodating cavity and positioned between the inner shell and the water collecting tank, and the stop piece is fixedly connected with the side wall of the outer shell.
Preferably, be provided with the sample connection on the shell lateral wall, the sample connection is located block piece with between the interior casing, the sample connection is connected with the sampling tube, the sampling tube is provided with the sample valve.
Preferably, the diapire of shell body is the toper structure, the awl tip of toper structure is provided with row mud house steward, row mud device is including scraping mud structure and play mud pipe, it includes actuating mechanism, drive shaft and mud scraping to scrape the mud structure, scrape the mud scraping set up in the shell body diapire, the one end of drive shaft with actuating mechanism's output is connected, the other end of drive shaft passes row mud house steward and stretch into the holding intracavity with it connects to scrape the mud oar, it connects in to go out the mud pipe arrange mud house steward.
Preferably, the mud outlet pipe is provided with an electromagnetic valve.
Preferably, the diapire of interior casing is the toper structure, advance water piping connection in the awl point department of toper structure, the diapire of interior casing still is provided with the backward flow hole, the backward flow hole encloses to be established around the awl point of toper structure, the backward flow hole intercommunication stirring chamber with the holding chamber.
Preferably, an adjusting cover for adjusting the size of the opening of the backflow hole is arranged at the backflow hole, and the adjusting cover is rotatably connected to the bottom wall of the inner shell.
Preferably, a flow guide member is arranged in the stirring cavity, the flow guide member is located at the upper part of the stirring cavity, the flow guide member comprises a flow guide ring and a flow guide plate, the flow guide ring is located at the central part of the upper part of the stirring cavity, one end of the flow guide plate is connected with the flow guide ring, and the other end of the flow guide plate is connected with the side wall of the inner shell.
Preferably, the barrier is of a grid structure.
The invention also provides a sewage treatment system which comprises a dosing device, a magnetic coagulation device and any one of the fluidized bed precipitation devices, wherein an outlet of the dosing device is communicated with the magnetic coagulation device, an outlet of the magnetic coagulation device is communicated with an inlet of the fluidized bed precipitation device, and the magnetic coagulation device is provided with a water injection port.
Preferably, the magnetism coagulation system includes that blender, magnetic add feeder unit and magnetic recovery unit, the water filling port set up in the blender, the export of charge device with the entry intercommunication of blender, the magnetic add feeder unit be used for to add the magnetic in the blender, the magnetic recovery unit is used for retrieving magnetic in the mud in the fluidized bed sediment device, arrange the mud device with be connected with the sludge pump between the magnetic recovery unit, mud in the fluidized bed sediment device passes through the sludge pump gets into the magnetic recovery unit, the export of magnetic recovery unit with the magnetic add feeder unit or the entry intercommunication of blender, the export of blender with the inlet tube intercommunication.
The invention also provides a sewage treatment process, by applying the fluidized bed sedimentation device, sewage to be treated enters the inner shell through the water inlet pipe, the sewage to be treated forms a reaction zone in the inner shell, a suspension zone is formed in the accommodating cavity above the inner shell, a sedimentation zone is formed between the inner shell and the bottom wall of the outer shell, and the inner shell separates the reaction zone from the sedimentation zone.
Compared with the prior art, the fluidized bed sedimentation device provided by the invention can be used for a sewage treatment system, sewage enters the inner shell through the water inlet pipe, the inner shell provides a flocculation space for the sewage to be flocculated, the stirring rod arranged in the inner shell can accelerate the flocculation rate of the sewage and accelerate flocculation, then the sludge discharge device discharges settled sludge, and the water collection tank is used for collecting the treated water and discharging clear water through the water outlet pipe. A suspension layer can be formed between the inner shell and the water collecting tank, and when partial flocs in the suspension layer penetrate through the suspension layer, the blocking piece can block the flocs and enable the flocs to quickly settle so as to ensure the purification quality of water in the water collecting tank. The fluidized bed precipitation device provided by the invention has the advantages of high precipitation speed and high precipitation efficiency, and can provide quality guarantee for sewage treatment. In addition, in the invention, the inner shell separates the sewage reaction zone, the suspension zone and the sedimentation zone, so that the mutual interference is reduced, and when the sewage is treated, the sewage in the reaction zone cannot be influenced by the sedimentation zone to slow down the water inlet speed and the flocculation result, so that the continuous sewage treatment can be ensured.
Drawings
FIG. 1 is a schematic view of a sewage treatment system according to the present invention;
FIG. 2 is a schematic view of the inner housing structure of the present invention;
fig. 3 is a top view of the inner housing of fig. 2.
Description of the symbols
The system comprises a sewage treatment system 10, a dosing device 100, a PAC dosing unit 110, a PAM dosing unit 120, a magnetic coagulation device 200, a water injection port 210, a mixer 220, a magnetic powder dosing unit 230, a magnetic powder recovery unit 240, a fluidized bed precipitation device 300, an outer shell 310, a sludge discharge device 311, a sludge scraping structure 3111, a driving mechanism 11a, a driving shaft 11B, a sludge scraping paddle 11C, a sludge discharge pipe 3112, an electromagnetic valve C3, a sampling port 312, a sampling pipe 313, a sampling valve C2, a sludge discharge main pipe 314, a cover body 320, an inner shell 330, a water inlet pipe 331, a backflow hole 332, an adjusting cover 333, a flow guide piece 334, a flow guide ring 3341, a flow guide plate 3342, a water collecting tank 340, a water outlet pipe 341, a water outlet valve C1, a stirrer 350, a stirring rod 351, a blocking piece 360, a containing cavity a, a sludge pump 1, a suspension layer
Detailed Description
To better illustrate the objects, technical solutions and advantages of the present invention, the present invention will be further described with reference to the following embodiments and accompanying drawings. It should be noted that the following implementation methods are further illustrative of the present invention and should not be construed as limiting the present invention.
Referring to fig. 1, the sewage treatment system 10 provided by the present invention includes a dosing device 100, a magnetic coagulation device 200 and a fluidized bed precipitation device 300, wherein an outlet of the dosing device 100 is communicated with the magnetic coagulation device 200, an outlet of the magnetic coagulation device 200 is communicated with an inlet of the fluidized bed precipitation device 300, and a water injection port 210 is disposed on the magnetic coagulation device 200. The sewage enters the magnetic coagulation device 200 through the water injection port 210, and the medicament and the like are added into the magnetic coagulation device 200 through the dosing device 100 and are fully mixed with the sewage and the magnetic powder in the magnetic coagulation device 200, and then enter the fluidized bed precipitation device 300 through the outlet of the magnetic coagulation device 200 for treatment.
With reference to fig. 1, the fluidized bed settling device 300 includes an outer casing 310, a cover 320, an inner casing 330, a water collecting tank 340, a stirrer 350, and a blocking member 360, wherein the outer casing 310 is a hollow structure with an open top, the hollow structure of the outer casing 310 forms an accommodating cavity a, and a sludge discharge device 311 is disposed at the bottom of the outer casing 310; the cover 320 is connected to the outer case 310 and seals the opening of the outer case 310; the inner shell 330 is arranged at the lower part of the accommodating cavity a, the inner shell 330 is of a hollow structure with an opening at the top, the hollow structure of the inner shell 330 forms a stirring cavity b, the bottom of the inner shell 330 is provided with a water inlet pipe 331, and the water inlet pipe 331 is communicated with the inner shell 330 and the outer shell 310; the water collecting tank 340 is arranged at the upper part of the accommodating cavity a, the side wall of the water collecting tank 340 is hermetically connected with the side wall of the outer shell 310, a water outlet pipe 341 is connected outside the water collecting tank 340, and the water outlet pipe is provided with a water outlet valve c 1; the stirrer 350 has a stirring rod 351 penetrating through the cover body 320 and extending into the stirring chamber b; the blocking member 360 is disposed in the accommodating cavity a and located between the inner housing 330 and the water collecting tank 340, and the blocking member 360 is fixedly connected to the sidewall of the outer housing 310. After passing through the magnetic coagulation device 200, the sewage to be treated enters the inner shell 330 through the water inlet pipe 331, the sewage is further coagulated in the inner shell 330 to form flocs, meanwhile, the stirring rod 351 is stirred in the stirring cavity b to accelerate flocculation, the settled sludge is discharged through the sludge discharge device 311, and clear water is collected in the water collection tank 340 and is discharged through the water outlet pipe 341. The suspension layer 2 can be formed between the inner shell 330 and the water collecting tank 340, when a part of flocs in the suspension layer 2 penetrates through the suspension layer 2, the blocking member 360 can block the flocs and make the flocs rapidly settle so as to ensure the purification quality of water in the water collecting tank 340, and particularly in this implementation, the blocking member 360 is of a grid structure. When sewage is treated, sewage to be treated enters the inner shell 330 through the water inlet pipe 331, a reaction area A is formed in the inner shell 330, a suspension area B is formed in the accommodating cavity a above the inner shell 330, a settling area C is formed between the bottom walls of the inner shell 330 and the outer shell 310, the sewage to be treated is flocculated into flocs in the reaction area A, the flocs then rise to the suspension area B, a suspension layer is formed in the suspension area B, then the flocs fall to the settling area C, and the sewage is discharged through the sludge discharge device 3111. In the invention, the inner shell separates the sewage reaction zone A, the suspension zone B and the sedimentation zone C, so that the mutual interference is reduced, and when the sewage is treated, the sewage in the reaction zone A cannot be influenced by the sedimentation zone C to slow down the water inlet speed and the flocculation result, so that the continuous sewage treatment can be ensured.
Further, in order to determine the specific position of the suspension layer 2, in this embodiment, a sampling port 312 is disposed on a sidewall of the outer housing 310, the sampling port 312 is located between the blocking member 360 and the inner housing 330, the sampling pipe 313 is connected to the sampling port 312, the sampling pipe 313 is provided with a sampling valve c2, the sampling port 312 may be provided in plural, and the sampling valve c2 may be a manual valve or an automatic valve, and may be specifically selected according to actual situations.
Please continue to refer to fig. 1, the bottom wall of the outer housing 310 is a conical structure, a mud discharging main pipe 314 is disposed at a conical tip of the conical structure, the mud discharging device 311 includes a mud scraping structure 3111 and a mud discharging pipe 3112, the mud scraping structure 3111 includes a driving mechanism 11a, a driving shaft 11b and a mud scraping paddle 11c, the mud scraping paddle 11c is disposed at the bottom wall of the outer housing 310, mud at the bottom wall of the outer housing 310 can be scraped, one end of the driving shaft 11b is connected with an output end of the driving mechanism 11a, the other end of the driving shaft 11b penetrates the mud discharging main pipe 314 and extends into the accommodating cavity a to be connected with the mud scraping paddle 11c, the mud discharging pipe 3112 is connected to the mud discharging main pipe 314, and an electromagnetic valve c3 is. After being scraped by the mud scraping paddle 11c, the mud on the bottom wall of the outer shell 310 enters the mud discharging header pipe 314 and is then discharged through the mud discharging pipe 3112 or enters the magnetic coagulation device 200 for magnetic powder recovery. The sludge scraping structure 3111 can concentrate sludge so that the water content of the sludge is 96%, and can directly perform sludge dewatering.
Referring to fig. 1 and 3, the bottom wall of the inner housing 330 is a conical structure, the water inlet pipe 331 is connected to a conical tip of the conical structure, the bottom wall of the inner housing 330 is further provided with a backflow hole 332, the backflow hole 332 is surrounded around the conical tip of the conical structure, the backflow hole 332 is communicated with the stirring cavity b and the accommodating cavity a, the backflow hole 332 is provided with an adjusting cover 333 for adjusting the size of the backflow hole 332, and the adjusting cover 333 is rotatably connected to the bottom wall of the inner housing 330, and specifically can be connected by bolts, pins, and the like. The backflow holes 332 are arranged, so that sludge can form automatic backflow in the inner shell 330, the backflow proportion of the sludge can be adjusted by adjusting the size of the backflow holes 332 through the adjusting cover 333, the efficiency of forming flocs in the inner shell 330 can be improved after the sludge flows back, and the sedimentation rate can be further accelerated.
Referring to fig. 1 to 3, a flow guide 334 is further disposed in the stirring chamber b of the inner housing 330, the flow guide 334 is located at an upper portion of the stirring chamber b, the flow guide 334 includes a flow guide ring 3341 and a flow guide plate 3342, the flow guide ring 3341 is located at a central portion of the upper portion of the stirring chamber b, one end of the flow guide plate 3342 is connected to the flow guide ring 3341, and the other end of the flow guide plate 3342 is connected to a sidewall of the inner housing 330.
Referring to fig. 1, the coagulation device 200 includes a mixer 220, a magnetic powder adding unit 230 and a magnetic powder recycling unit 240, the water injection port 210 is disposed on the mixer 220, an outlet of the medicine adding device 100 is communicated with an inlet of the mixer 220, the magnetic powder adding unit 230 is used for adding magnetic powder into the mixer 220, the magnetic powder recycling unit 240 is used for recycling magnetic powder in sludge in the fluidized bed sedimentation device 300, a sludge pump 1 is connected between the sludge discharging device 311 and the magnetic powder recycling unit 240, sludge in the fluidized bed sedimentation device 300 enters the magnetic powder recycling unit 240 through the sludge pump 1, an outlet of the magnetic powder recycling unit 240 is communicated with the magnetic powder adding unit 230 or the inlet of the mixer 220, and an outlet of the mixer 220 is communicated with a water inlet pipe 331. The magnetic coagulation device 200 is added into the sewage treatment system 10, so that the sewage treatment precipitation efficiency can be enhanced, the height of equipment can be reduced, the occupied space of a waterless treatment system can be reduced, and the economic benefit can be improved. In addition, during mixing, the addition of the magnetic powder can reduce the use amount of the medicament and reduce the sewage treatment cost. Referring to fig. 1, the medicine adding device 100 includes a PAC adding unit 110 and a PAM adding unit 120, and PAC, PAM and magnetic powder are fully mixed in a mixer 220 and then enter a fluidized bed precipitation device 300, so as to complete the subsequent sewage treatment process.
The fluidized bed sedimentation device 300 provided by the invention is used for a sewage treatment system 10, sewage enters an inner shell 330 through a water inlet pipe 331, the inner shell 330 provides a coagulation space for coagulating the sewage into floccules, a stirring rod 351 arranged in the inner shell 330 can accelerate the flocculation rate of the sewage and accelerate flocculation, then a sludge discharge device 311 discharges settled sludge, and a water collection tank 340 is used for collecting treated clean water and discharging the clean water through a water outlet pipe 341. A suspension layer 2 is formed between the inner housing 330 and the water collecting tank 340, and when a part of flocs in the suspension layer 2 penetrates through the suspension layer 2, the blocking member 360 can block the flocs and make the flocs rapidly settle, so as to ensure the purification quality of water in the water collecting tank 340. The fluidized bed precipitation device 300 provided by the invention has the advantages of high precipitation speed and high precipitation efficiency, and can provide quality guarantee for sewage treatment. In addition, in the invention, the inner shell separates the sewage reaction zone A, the suspension zone B and the sedimentation zone C, so that the mutual interference is reduced, and when the sewage is treated, the sewage in the reaction zone A cannot be influenced by the sedimentation zone C to slow down the water inlet speed and the flocculation result, so that the continuous sewage treatment can be ensured.
The above disclosure is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the invention, so that the appended claims are intended to cover all such modifications and changes as fall within the true spirit of the invention.
Claims (10)
1. A fluidized bed precipitation device is characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the mud discharging device comprises an outer shell, a mud discharging device and a mud discharging device, wherein the outer shell is of a hollow structure with an opening at the top, an accommodating cavity is formed in the hollow structure of the outer shell, and the mud discharging device is arranged at the bottom of the outer shell;
a cover connected to the outer case and sealing an opening of the outer case;
the inner shell is arranged at the lower part of the accommodating cavity and is of a hollow structure with an opening at the top, the hollow structure of the inner shell forms a stirring cavity, the bottom of the inner shell is connected with a water inlet pipe, and the water inlet pipe is communicated with the inner shell and the outer shell;
the water collecting tank is arranged at the upper part of the accommodating cavity, the side wall of the water collecting tank is hermetically connected with the side wall of the outer shell, a water outlet pipe is connected outside the water collecting tank, and the water outlet pipe is provided with a water outlet valve;
the stirrer is provided with a stirring rod which penetrates through the cover body and extends into the stirring cavity;
the stop piece is arranged in the accommodating cavity and positioned between the inner shell and the water collecting tank, and the stop piece is fixedly connected with the side wall of the outer shell.
2. The fluid bed precipitation apparatus of claim 1, wherein: be provided with the sample connection on the shell lateral wall, the sample connection is located block piece with between the interior casing, the sample connection is connected with the sampling tube, the sampling tube is provided with the sample valve.
3. The fluid bed precipitation apparatus of claim 1, wherein: the diapire of shell body is the toper structure, the awl tip of toper structure is provided with mud discharging header pipe, mud discharging device is including scraping mud structure and play mud pipe, it includes actuating mechanism, drive shaft and mud scraping oar to scrape mud structure, mud scraping set up in the shell body diapire, the one end of drive shaft with actuating mechanism's output is connected, the other end of drive shaft passes mud discharging header pipe stretches into the holding intracavity with mud scraping connects, play mud pipe connection in mud discharging header pipe.
4. The fluid bed precipitation apparatus of claim 1, wherein: the diapire of interior casing is the toper structure, advance water piping connection in the awl point department of toper structure, the diapire of interior casing still is provided with the backward flow hole, the backward flow hole encloses to be established around the awl point of toper structure, the backward flow hole intercommunication the stirring chamber with the holding chamber.
5. The fluid bed precipitation apparatus of claim 4, wherein: the position of the backflow hole is provided with an adjusting cover for adjusting the size of the opening of the backflow hole, and the adjusting cover is rotatably connected to the bottom wall of the inner shell.
6. The fluid bed precipitation apparatus of claim 1, wherein: the stirring intracavity is provided with the water conservancy diversion spare, the water conservancy diversion spare is located the upper portion in stirring chamber, the water conservancy diversion spare includes water conservancy diversion ring sum guide plate, the water conservancy diversion ring is located the central point on stirring chamber upper portion, the one end of guide plate with the water conservancy diversion ring is connected, the other end of guide plate with the lateral wall of interior casing is connected.
7. The fluid bed precipitation apparatus of claim 1, wherein: the barrier is of a grid structure.
8. A sewage treatment system is characterized in that: the device comprises a dosing device, a magnetic coagulation device and the fluidized bed precipitation device as claimed in any one of claims 1 to 8, wherein an outlet of the dosing device is communicated with the magnetic coagulation device, an outlet of the magnetic coagulation device is communicated with an inlet of the fluidized bed precipitation device, and the magnetic coagulation device is provided with a water injection port.
9. The wastewater treatment system of claim 8, wherein: the magnetic coagulation device comprises a mixer, a magnetic powder adding unit and a magnetic powder recycling unit, wherein a water injection port is formed in the mixer, an outlet of the agent adding device is communicated with an inlet of the mixer, the magnetic powder adding unit is used for adding magnetic powder into the mixer, the magnetic powder recycling unit is used for recycling the magnetic powder in sludge in the fluidized bed sedimentation device, a sludge discharging device is connected with a sludge pump between the magnetic powder recycling units, sludge in the fluidized bed sedimentation device passes through the sludge pump to enter the magnetic powder recycling unit, an outlet of the magnetic powder recycling unit is communicated with the inlet of the mixer, and an outlet of the mixer is communicated with the water inlet pipe.
10. A sewage treatment process is characterized in that: with the fluidized bed deposition apparatus as claimed in any one of claims 1 to 7, the sewage to be treated enters the inner housing through the water inlet pipe, the sewage to be treated forms a reaction zone in the inner housing, a suspension zone is formed in the accommodating cavity above the inner housing, and a deposition zone is formed between the inner housing and the bottom wall of the outer housing, and the inner housing separates the reaction zone from the deposition zone.
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| CN201911092026.2A CN110902787A (en) | 2019-11-08 | 2019-11-08 | Fluidized bed precipitation device and sewage treatment system thereof |
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| CN201911092026.2A CN110902787A (en) | 2019-11-08 | 2019-11-08 | Fluidized bed precipitation device and sewage treatment system thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115353190A (en) * | 2022-10-19 | 2022-11-18 | 中国环境科学研究院 | Embedded ozone catalytic oxidation device and method |
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| CN201890794U (en) * | 2010-11-08 | 2011-07-06 | 江苏龙腾中和环境工程有限公司 | Novel high-efficiency physicochemical water treatment settling tank device |
| CN206985807U (en) * | 2017-07-24 | 2018-02-09 | 温州大学 | A kind of magnetic-coagulation integration Waste Water Treatment |
| CN207126178U (en) * | 2017-07-07 | 2018-03-23 | 南安贤达机械有限公司 | A kind for the treatment of tank floats sludge removal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201890794U (en) * | 2010-11-08 | 2011-07-06 | 江苏龙腾中和环境工程有限公司 | Novel high-efficiency physicochemical water treatment settling tank device |
| CN207126178U (en) * | 2017-07-07 | 2018-03-23 | 南安贤达机械有限公司 | A kind for the treatment of tank floats sludge removal |
| CN206985807U (en) * | 2017-07-24 | 2018-02-09 | 温州大学 | A kind of magnetic-coagulation integration Waste Water Treatment |
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| CN115353190B (en) * | 2022-10-19 | 2023-01-24 | 中国环境科学研究院 | Embedded ozone catalytic oxidation device and method |
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