CN114920320B - Waste water and tar recovery device for coking plant - Google Patents
Waste water and tar recovery device for coking plant Download PDFInfo
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- CN114920320B CN114920320B CN202210634285.9A CN202210634285A CN114920320B CN 114920320 B CN114920320 B CN 114920320B CN 202210634285 A CN202210634285 A CN 202210634285A CN 114920320 B CN114920320 B CN 114920320B
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- 239000002351 wastewater Substances 0.000 title claims abstract description 44
- 238000011084 recovery Methods 0.000 title claims abstract description 13
- 238000004939 coking Methods 0.000 title abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 184
- 238000009792 diffusion process Methods 0.000 claims abstract description 58
- 238000004065 wastewater treatment Methods 0.000 claims abstract description 39
- 238000005273 aeration Methods 0.000 claims abstract description 30
- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 238000005188 flotation Methods 0.000 claims abstract description 17
- 238000004140 cleaning Methods 0.000 claims description 66
- 239000000203 mixture Substances 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 6
- 239000000571 coke Substances 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 18
- 238000002156 mixing Methods 0.000 abstract description 9
- 238000004064 recycling Methods 0.000 abstract description 8
- 230000008602 contraction Effects 0.000 abstract description 6
- 235000019198 oils Nutrition 0.000 description 58
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 23
- 235000011114 ammonium hydroxide Nutrition 0.000 description 23
- 238000005238 degreasing Methods 0.000 description 19
- 230000033001 locomotion Effects 0.000 description 14
- 238000000034 method Methods 0.000 description 9
- 238000007664 blowing Methods 0.000 description 8
- 238000001914 filtration Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- 239000012535 impurity Substances 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 238000007667 floating Methods 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000010908 plant waste Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 125000001475 halogen functional group Chemical group 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 235000019476 oil-water mixture Nutrition 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
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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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
- C02F2103/365—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds from petrochemical industry (e.g. refineries)
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physical Water Treatments (AREA)
Abstract
The utility model discloses a waste water and tar recovery device of a coking plant, which comprises a waste water treatment tank and a bubble generation mechanism, wherein the bubble generation mechanism comprises a water pump and a jet device which are arranged between a shunt opening and an input opening, the jet device comprises a suction section, a contraction section, a mixing section and a diffusion section which are sequentially arranged along the water flow direction, an aeration head is arranged in the diffusion section, a spoiler assembly comprises a spoiler and a spiral spoiler, the spoiler is arranged on the input opening and is connected with the diffusion section, an input part which is communicated with the waste water treatment tank is arranged on the spoiler, and bubbles are sequentially conveyed into the waste water treatment tank from the input part after passing through the aeration head and the spiral spoiler in the jet device. According to the device for recycling the tar in the wastewater of the coking plant, provided by the utility model, the bubbles in the water flow are treated for multiple times through the aeration head, the spiral turbulence piece and the turbulence plate, so that the large bubbles in the water flow are fully crushed to form small bubbles with proper and uniform size, and the treatment effect of the air flotation oil removal area on the tar is improved.
Description
Technical Field
The utility model relates to the technical field of wastewater treatment, in particular to a device for recycling tar in wastewater of a coking plant.
Background
The main raw material of the desulfurization ammonia distillation process is residual ammonia water, the components in the ammonia water are complex, the toxicity is typical industrial wastewater which is difficult to degrade, an effective ammonia distillation process is adopted to treat ammonia elements and other pollutants in the ammonia water, the residual ammonia water enters a pretreatment residual ammonia water large tank for standing after being precipitated and separated by a mechanical clarifying tank or a scum tank of a recovery process, oil (tar) and impurities in the residual ammonia water are further removed during the period, at present, the oil (tar) and impurities in the residual ammonia water are removed by adopting an air floatation degreasing method, air is absorbed into a residual ammonia water system in a jet flow mode to form an air-water mixture, a gas-water mixture is returned into an air floatation degreasing chamber through an aeration head, the tar and floc are adhered to bubbles after the aeration head, the overall specific gravity is smaller than that of the residual ammonia water, and the floc is floated out of the water surface according to the buoyancy principle, so that the oil (tar) or suspended matters in the residual ammonia water are separated.
The utility model patent application of the utility model with publication number CN205709964U, named as a residual ammonia water air floatation degreasing system, publication date 2016, 11-23, comprises an air floatation degreasing chamber, a dissolved air chamber, a jet pump, an air introducing pipe, a tail gas circulating pipe and a three-way valve; the air flotation degreasing chamber comprises a residual ammonia water inlet for introducing residual ammonia water to be degreased, a residual ammonia water outlet for discharging residual ammonia water after air flotation degreasing, and an oil outlet for discharging oil produced after air flotation degreasing, wherein the residual ammonia water inlet of the air flotation degreasing chamber is communicated with a residual ammonia water source; the liquid inlet of the jet pump is communicated with the middle lower part of the air floatation oil removal chamber for extracting residual ammonia water, the air inlet of the jet pump is communicated with one end of an air introducing pipe and one end of a tail gas circulating pipe through a three-way valve so as to supply air or tail gas to the jet pump, the other end of the air introducing pipe is vented, the other end of the tail gas circulating pipe is communicated with the air floatation oil removal chamber, the joint of the other end and the air floatation oil removal chamber is positioned above the liquid level in the air floatation oil removal chamber, the gas-liquid mixture outlet of the jet pump is communicated with the gas-liquid mixture inlet of a solution chamber, and the gas-liquid mixture outlet of the solution chamber is communicated with the bottom of the air floatation oil removal machine. In the use process, the air and water form a gas-water mixture through the jet pump, the gas-water mixture is conveyed into the air floatation degreasing chamber after passing through the dissolved air chamber, the jet pump is communicated with the air floatation degreasing chamber through the tail gas circulating pipe, and tail gas in the air floatation degreasing chamber is continuously pumped to become a new gas source of dissolved air.
For another example, the utility model patent application with publication number of CN209651933U, named as a jet air floatation device, publication date of 2019, 11 and 19 comprises an oxidation tank, a jet bubble generator and an automatic feeder, wherein the jet bubble generator is arranged on one side of the middle part of the oxidation tank, the jet bubble generator is connected with the automatic feeder through a pipeline and a water pump, and the automatic feeder is connected with a liquid outlet at the bottom of the oxidation tank through a throttle valve and a pipeline; the jet flow bubble generator comprises a tube body, the tube body is sequentially divided into a suction section, a contraction section, a throat section and a diffusion section from right to left, a nozzle is arranged at the center of the suction section, a fluid inlet tube is arranged on the side wall of the suction section, the fluid inlet tube is communicated with the atmosphere, a spiral turbulent flow piece is arranged in the contraction section, and a filter screen is arranged in the diffusion section. The jet flow bubble generator provided by the utility model has the advantages that the contraction section of the tube body is a conical tube which is changed from large to small, the diffusion section is a conical tube which is changed from small to large, so that negative pressure is generated in the suction section, air is sucked, the size of bubbles is regulated through the spiral number of the spiral turbulence piece and the mesh aperture of the filter screen, the bubbles are injected into water in the form of tiny bubbles after being sprayed out, the tiny bubbles are adhered with particles suspended in the water to form a water-air particle three-phase mixed system, and after the particles are adhered with the bubbles, the density is less than that of water, namely, the water floats upwards, a floating slag layer is formed, and the bubbles are separated from the water.
When the jet type air dissolving device is used for treating residual ammonia water, the size and the number of bubbles generated by the jet device and the aeration head are key factors influencing the effect of treating the ammonia water, the smaller the diameter of the bubbles in the air floatation degreasing chamber is, the larger the number is, the better the air floatation effect is, the better the effect of removing oil and impurities in the residual ammonia water is, when the air intake halo is overlarge, a uniform air dissolving (air-water) mixture cannot be formed, the air floatation effect is reduced, however, a jet pump or a jet bubble generator in the prior art cannot generate bubbles with proper and uniform size, so that the effect of treating tar in the ammonia water is influenced, and the residual tar in the ammonia water can block equipment for subsequent treatment.
Disclosure of Invention
The utility model aims to provide a device for recycling waste water and tar in a coking plant, which aims to solve the defects in the prior art.
In order to achieve the above object, the present utility model provides the following technical solutions:
the utility model provides a coke oven plant waste water tar recovery unit, includes waste water treatment jar and bubble generation mechanism, be provided with shunt outlet and input port on the waste water treatment jar, bubble generation mechanism is including setting up the shunt outlet with water pump and the ejector between the input port, the ejector includes suction zone, shrink section, mixed section and the diffusion section that set gradually along the rivers direction, be provided with the aeration head in the diffusion section, still include the vortex subassembly, the vortex subassembly includes the spoiler and follows the spiral vortex piece that rivers direction set up, the spoiler sets up on the input port and with the diffusion section is connected, be provided with on the spoiler with the input that the waste water treatment jar is linked together, the bubble is in the ejector passes through in proper order behind aeration head and the spiral vortex piece the input is carried to in the waste water treatment jar.
The waste water and tar recycling device for the coking plant comprises a diffusion section, wherein the diffusion section is provided with a plurality of diffusion holes, the diffusion section is provided with a diffusion plate, the diffusion plate is provided with a diffusion hole, and the diffusion section is provided with a diffusion hole.
The device for recycling the coke oven plant wastewater and tar comprises an input part, wherein the input part comprises a plurality of input holes arranged on the spoiler, and the input holes are arranged in one-to-one correspondence with the spiral spoilers.
According to the device for recycling the tar in the wastewater of the coking plant, the aperture of the input hole is gradually reduced along the water flow direction.
According to the coke-oven plant wastewater tar recovery device, one end of the spiral spoiler part, which is far away from the fixed plate, is positioned in the input hole, and an annular flowing gap for liquid to flow is formed between the spiral spoiler part and the input hole.
The device for recycling the coke-oven plant wastewater and tar further comprises a filter plate transversely arranged in the diffusion section, wherein a plurality of aeration heads are arranged on one side of the filter plate, which is close to the fixed plate, at intervals.
The device for recycling the coke-oven plant wastewater tar further comprises a rotary cleaning assembly, wherein the rotary cleaning assembly comprises a driving piece and a cleaning piece rotationally connected in the diffusion section, and the cleaning piece can be driven by the driving piece to rotate in the diffusion section so as to clean the filter plate.
Foretell coke-oven plant waste water tar recovery unit, the clearance piece include with the clearance side that the filter laminated mutually and with the corresponding side that intakes of clearance side, be provided with a plurality of clearance structures on the clearance side.
Foretell coke-oven plant waste water tar recovery unit, the side of intaking is provided with a plurality of first inlet openings and a plurality of second inlet openings that the inlet direction is different, first inlet opening is followed the circumference of clearance piece sets gradually the interval, and is a plurality of the second inlet opening encircles the outside of first inlet opening.
According to the coke-oven plant wastewater tar recovery device, the driving piece comprises the rotating plate which is rotatably connected in the diffusion section, the rotating plate is provided with the first water channel and the second water channel, the first water channel is correspondingly arranged with the first water inlet hole, the second water channel is correspondingly arranged with the second water inlet hole, and the rotating plate is driven to have a first working position and a second working position;
in the first working position, the first water channel is communicated with the first water inlet hole so that water flows through the first water channel and the first water inlet hole;
in the second working position, the second water channel is communicated with the second water inlet hole, and water flow is output from the second water channel to generate a circumferential rotary driving force for the cleaning piece so as to drive the cleaning piece to rotate.
In the technical scheme, the utility model provides a waste water tar recovery device of a coking plant, which comprises a waste water treatment tank, a bubble generation mechanism and a turbulent flow assembly, wherein the bubble generation mechanism comprises a water pump and a jet device, the turbulent flow assembly comprises a turbulent flow plate arranged at the end part of a diffusion section of the jet device and a spiral turbulent flow piece arranged along the water flow direction, an input part communicated with the waste water treatment tank is arranged on the turbulent flow plate, water flow sequentially passes through an aeration head and the spiral turbulent flow piece in the jet device and then is conveyed into the waste water treatment tank from the input part, and bubbles in the water flow are treated for multiple times through the aeration head, the spiral turbulent flow piece and the turbulent flow plate, so that large bubbles in the water flow are fully crushed to form small bubbles with proper and uniform size, and the treatment effect of a floatation oil removing area on tar is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a schematic diagram of a wastewater treatment tank according to an embodiment of the present utility model;
fig. 2 is a schematic structural diagram of an ejector according to an embodiment of the present utility model;
FIG. 3 is a schematic structural view of a spoiler assembly according to an embodiment of the present utility model;
fig. 4 is a schematic structural view of a fixing plate according to an embodiment of the present utility model;
FIG. 5 is a schematic structural view of a spoiler according to an embodiment of the present utility model;
FIG. 6 is an exploded view of a rotary cleaning assembly according to another embodiment of the present utility model;
FIG. 7 is a schematic view of a rotating plate according to another embodiment of the present utility model;
FIG. 8 is a schematic view of a cleaning member according to another embodiment of the present utility model;
FIG. 9 is a second schematic structural view of a cleaning member according to another embodiment of the present utility model;
FIG. 10 is a schematic view of a cleaning structure according to another embodiment of the present utility model;
FIG. 11 is a top view of an air bearing zone according to yet another embodiment of the present utility model;
fig. 12 is a schematic structural view of an oil drain mechanism according to another embodiment of the present utility model;
FIG. 13 is a schematic view of a rotating disc according to another embodiment of the present utility model;
fig. 14 is a schematic structural view of a guide disc according to still another embodiment of the present utility model.
Reference numerals illustrate:
1. a wastewater treatment tank; 1.1, a shunt port; 1.2, inputting an opening; 1.3, buffer area; 1.4, a sloping plate area; 1.5, an air floatation oil removal area; 1.6, an oil drain port; 2. a bubble generation mechanism; 2.1, a water pump; 3. a jet device; 3.1, an inhalation section; 3.2, a contraction section; 3.3, mixing section; 3.4, a diffusion section; 3.5, a nozzle; 3.6, an air inlet channel; 4. a spoiler assembly; 4.1, spoiler; 4.2, an input hole; 4.3, spiral turbulence piece; 4.4, fixing plate; 4.5, water permeable holes; 4.6, annular flow gap; 5. a filter plate; 5.1, an aeration head; 6. rotating the cleaning assembly; 6.1, cleaning the piece; 6.1.1, cleaning the structure; 6.2, a first water inlet hole; 6.3, a second water inlet hole; 6.3.1, a blocking plate; 6.4, rotating the plate; 6.5, a first water channel; 6.6, a second water channel; 6.6.1, a diversion part; 7. an oil discharging mechanism; 7.1, a top mounting rack; 7.2, a driving unit; 7.3, rotating the disc; 7.4, a deflector rod; 7.5, a guide post; 7.6, upper annular side plates; 7.7, an arc opening; 7.8, an air blowing port; 8. a guide disc; 8.1, a guide groove; 8.2, a semicircular part; 8.3, oval portion.
Detailed Description
In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1-14, an embodiment of the utility model provides a waste water tar recovery device of a coking plant, which comprises a waste water treatment tank 1 and a bubble generation mechanism 2, wherein a shunt port 1.1 and an input port 1.2 are arranged on the waste water treatment tank 1, the bubble generation mechanism 2 comprises a water pump 2.1 and a jet ejector 3 which are arranged between the shunt port 1.1 and the input port 1.2, the jet ejector 3 comprises a suction section 3.1, a contraction section 3.2, a mixing section 3.3 and a diffusion section 3.4 which are sequentially arranged along the water flow direction, an aeration head 5.1 is arranged in the diffusion section 3.4, and further comprises a turbulence assembly 4, the turbulence assembly 4 comprises a turbulence plate 4.1 and a spiral turbulence piece 4.3 arranged along the water flow direction, the turbulence plate 4.1 is arranged on the input port 1.2 and is connected with the diffusion section 3.4, an input part which is communicated with the waste water treatment tank 1 is arranged on the turbulence plate 4.1, and the bubbles are sequentially conveyed into the waste water treatment tank 1 from the input part after passing through the aeration head 5.1 and the spiral piece 4.3 in the jet ejector 3.
Specifically, wastewater treatment jar 1 is used for storing waste water and treating waste water, be provided with water inlet, delivery port and drain on the wastewater treatment jar 1, the water inlet is used for carrying the waste water that needs to be handled to wastewater treatment jar 1 in, the delivery port is used for exporting the waste water after handling, the drain can be in wastewater treatment in-process with the oil thing of air supporting deoiling output, this is prior art, it is unnecessary to describe, wastewater treatment jar 1 inside includes air supporting deoiling district 1.5 at least, still can set gradually buffer zone 1.3 in the flow direction of waste water in the wastewater treatment jar 1, swash plate district 1.4 and air supporting deoiling district 1.5, thereby carry out a large amount of bubbles to waste water in proper order, bubble generation mechanism 2 is used for carrying a large amount of bubbles to air supporting deoiling district 1.5 in, bubble generation mechanism 2 includes water pump 2.1 and jet apparatus 3, be provided with split-flow mouth 1.1 and input port 1.2 on wastewater treatment jar 1, through making split-flow mouth 1.1, water pump 2.1, jet apparatus 3 and input port 1.2 are connected in turn, water in such a water treatment jar 1 in the water supporting the air supporting jar 1.2, water carrier 1 is carried out the water carrier through the air supporting granule in-carrier 1, the top of the air supporting device is carried out in the water carrier 1, the air supporting granule is carried out to the air supporting device 1, the top is carried out the air supporting granule is carried out in the air supporting 1.
In this embodiment, the number of the ejectors 3 may be one, two, three or more according to the need, the number of bubbles can be increased by a plurality of ejectors 3, each ejector 3 comprises a water inlet end and a water outlet end, a suction section 3.1, a constriction section 3.2, a mixing section 3.3 and a diffusion section 3.4 are sequentially arranged in the ejectors 3 from the water inlet end to the water outlet section, the suction section 3.1, the constriction section 3.2, the mixing section 3.3 and the diffusion section 3.4 are connected in the ejectors 3 to form a jet channel, the flow cross sections of the jet channels of the suction section 3.1 and the constriction section 3.2 are gradually reduced, the flow cross sections of the jet channels of the mixing section 3.3 and the diffusion section 3.4 are gradually increased, a jet nozzle 3.5 is arranged in the suction section 3.1 and the constriction section 3.2 to jet water into the jet channel, an air inlet channel 3.6 is arranged on the suction section 3.1 or the constriction section 3.2, so that the flow cross section of the jet channel at the joint of the constriction section 3.2 and the mixing section 3.3 is minimum, the jet channel is communicated with the air inlet channel 3.6, when the wastewater passes through the reduced flow cross section, the wastewater generates a phenomenon of flow velocity increase, the flow velocity increase is accompanied with the reduction of fluid pressure, thereby generating an adsorption effect on air, namely, a venturi tube structure is formed inside the ejector 3, and the air is sucked into the jet channel to be mixed with the wastewater in the mixing section 3.3 and the diffusion section 3.4 to form a gas-water mixed fluid due to the venturi effect, and is conveyed into the wastewater treatment tank 1 from the input port 1.2. The number of the air inlet channels 3.6 in the embodiment can be one or two, three or more according to the requirement, and one air inlet channel 3.6 can be connected with the inside of the wastewater treatment tank 1 through a circulating pipe, so that the tail gas in the air flotation oil removal chamber can be continuously pumped to become a new dissolved gas source, the tail gas escape in the air flotation oil removal chamber is reduced or even avoided, and the tail gas accumulation above the liquid level in the air flotation oil removal chamber is reduced.
In the embodiment, one side of the diffusion section 3.4 far away from the mixing section 3.3 is provided with a jet flow channel section with unchanged flow cross section, an aeration head 5.1 and a vortex component 4 are arranged in the jet flow channel section, air is contacted with water phase through the aeration head 5.1 to be dissolved to form a gas-water mixture, the grain size of bubbles in the gas-water mixture is reduced, after the gas-water mixture passes through the vortex component 4 along the flow channel, the bubbles in the gas-water mixture are further reduced, so that the size of the bubbles conveyed into the wastewater treatment tank 1 is proper and uniform, the treatment effect on oil (tar) and suspended matters in the wastewater is improved, the vortex component 4 comprises a vortex plate 4.1 and a spiral vortex piece 4.3 which are arranged in a matched manner, the vortex plate 4.1 is arranged at one end of the diffusion section 3.4 connected with the input port 1.2, an input part is arranged on the vortex plate 4.1, the diffusion section 3.4 is communicated with the air floatation degreasing chamber through the input part, the input part can be an input hole 4.2 arranged on the spoiler 4.1, the spiral spoiler 4.3 is arranged between the aeration head 5.1 and the spiral spoiler 4.3, the spiral spoiler 4.3 is arranged along the axial direction of the diffuser 3.4, the spiral spoiler 4.3 can be a strip-shaped structure which is spirally arranged, alternatively, the spiral spoiler 4.3 is a cylindrical body with a circumferential surface provided with spiral grooves, the spiral direction of the spiral spoiler 4.3 is consistent with the flowing direction of water, namely, when the wastewater flows to the spiral spoiler 4.3 of the diffuser 3.4, the wastewater flows along the spiral direction of the spiral spoiler 4.3, the spiral spoiler 4.3 can be one, two, three or more, preferably, the number of the spiral spoiler 4.3 is consistent with the number of the input part, and the spiral spoiler 4.3 is in one-to-one correspondence with the input part, a flowing gap for water supply flowing is formed between the spiral vortex piece 4.3 and the input part, after water flow is output from the aeration head 5.1 and reaches the spiral vortex piece 4.3, because the water flow originally flows in a straight line direction and reaches the spiral vortex piece 4.3, the water flow is divided into a plurality of strands and is changed into a curve state from the straight line state, the water flow impacts the spiral vortex piece 4.3, water mist is generated after impact, large bubbles in the water flow are fully crushed to form a plurality of small bubbles to form a micron-sized small bubble atomization state, and then the small bubbles are conveyed from each input part to the air flotation oil removal chamber, so that the bubbles conveyed to the air flotation oil removal chamber are small and uniform, and the removal effect on tar, dispersed oil or suspended particles in water in the wastewater can be effectively improved.
The embodiment of the utility model provides a waste water and tar recovery device of a coking plant, which comprises a waste water treatment tank 1, a bubble generation mechanism 2 and a turbulence assembly 4, wherein the bubble generation mechanism 2 comprises a water pump 2.1 and a jet device 3, the turbulence assembly 4 comprises a turbulence plate 4.1 arranged at the end part of a diffusion section 3.4 of the jet device 3 and a spiral turbulence piece 4.3 arranged along the water flow direction, an input part communicated with the waste water treatment tank 1 is arranged on the turbulence plate 4.1, water flow sequentially passes through an aeration head 5.1 and the spiral turbulence piece 4.3 in the jet device 3 and then is conveyed into the waste water treatment tank 1 from the input part, and bubbles in the water flow are treated for multiple times through the aeration head 5.1, the spiral turbulence piece 4.3 and the turbulence plate 4.1, so that large bubbles in the water flow are fully crushed to form small bubbles with proper and uniform size, and the tar treatment effect of an air flotation oil removal area 1.5 is improved.
In the embodiment provided by the utility model, preferably, the spoiler assembly 4 further comprises a fixing plate 4.4 transversely arranged in the diffuser section 3.4, a plurality of spiral spoilers 4.3 are vertically arranged on the fixing plate 4.4, water permeable holes 4.5 corresponding to the spiral spoilers 4.3 are arranged on the fixing plate 4.4, the spiral spoilers 4.3 are arranged along the direction parallel to the axis of the diffuser section 3.4, the plurality of spiral spoilers 4.3 are sequentially arranged at intervals along the circumferential direction of the fixing plate 4.4, each spiral spoiler 4.3 is vertically connected with the fixing plate 4.4, the spiral spoilers 4.3 are cylindrical bodies with spiral grooves on the circumferential surface, a plurality of water permeable holes 4.5 are arranged on the fixing plate 4.4 at intervals, and in order to promote the bubble breaking effect of the spiral spoilers 4.3, the water permeable holes 4.5 can be correspondingly arranged with the spiral grooves on the spiral spoilers 4.3, namely, the water permeable holes 4.5 are correspondingly arranged on one side of each spiral spoiler 4.3, and if the water flows through the water permeable holes 4.5 and then are correspondingly conveyed into the spiral grooves.
In the embodiment provided by the utility model, preferably, the input part comprises a plurality of input holes 4.2 arranged on the spoiler 4.1, the input holes 4.2 are arranged in one-to-one correspondence with the spiral spoiler 4.3, the aperture of the input holes 4.2 is gradually reduced along the water flow direction, the spoiler 4.1 can be a circular plate, the spoiler 4.1 can also be an arc plate bent towards the air floatation degreasing chamber, on one hand, more input holes 4.2 are obtained in the unit radial cross section area, on the other hand, the input holes 4.2 are closer to the inside of the wastewater treatment tank 1, so that a large number of bubbles can be dispersed conveniently, namely, the bubbles can be dispersed conveniently while more bubbles are generated, the plurality of input holes 4.2 are sequentially arranged at intervals along the circumference of the spoiler 4.1, and each input hole 4.2 is a conical hole, and the liquid inlet end of each input hole 4.2 is larger in size and corresponds to the spiral spoiler 4.3 so as to realize drainage of wastewater.
In the embodiment provided by the utility model, preferably, one end of the spiral spoiler 4.3 away from the fixed plate 4.4 is located in the input hole 4.2, an annular flow gap 4.6 for liquid to flow is formed between the spiral spoiler 4.3 and the input hole 4.2, the spiral spoiler 4.3 is a conical body with gradually smaller size along the water flow direction, the annular flow gap 4.6 is gradually reduced along the water flow direction, so that after the water flow flows into the annular flow gap 4.6, the water flow speed is accelerated, and the annular flow gap 4.6 guides the water flow to change the direction of the water flow, so that the water flow flows along the direction of the spiral groove on the spiral spoiler 4.3, thereby improving the impact effect between the water flow and the spiral spoiler 4.3, quickly breaking large bubbles in the water flow into more small bubbles and conveying the large bubbles from the input hole 4.2 to the air-floating oil removal chamber.
In another embodiment provided by the utility model, the filter plate 5 is preferably arranged in the diffusion section 3.4 transversely, a plurality of aeration heads 5.1 are arranged on one side, close to the fixed plate 4.4, of the filter plate 5 at intervals, the filter plate 5 has an effect of filtering wastewater, the aeration heads 5.1 comprise water inlet parts, a plurality of filtering parts are arranged on the filter plate 5, filtering holes are arranged on the filtering parts, the filtering parts are arranged in one-to-one correspondence with the water inlet parts, water flows to the diffusion section 3.4 and is conveyed into each water inlet part through the filtering parts, aeration treatment is carried out through the aeration heads 5.1, and in the process, suspended matters, oil, sundries and the like in the wastewater are filtered through the filtering holes, so that blockage caused by the suspended matters, the oil, sundries and the like entering the aeration heads 5.1 is avoided.
In another embodiment provided by the utility model, preferably, the filter plate cleaning device further comprises a rotary cleaning assembly 6, the rotary cleaning assembly 6 comprises a driving piece and a cleaning piece 6.1 rotatably connected in the diffusion section 3.4, the cleaning piece 6.1 can be driven by the driving piece to rotate in the diffusion section 3.4 so as to clean the filter plate 5, the driving piece and the cleaning piece 6.1 are both rotatably connected in the diffusion section 3.4, the cleaning piece 6.1 comprises a cleaning side which is attached to the filter plate 5 and a water inlet side corresponding to the cleaning side, a plurality of cleaning structures 6.1.1 are arranged on the cleaning side, the cleaning structures 6.1.1 can be cleaning heads or cleaning brushes arranged on the cleaning side, the cleaning structures 6.1.1 can clean the filter plate 5 in the rotation process, the cleaning pieces 6.1 can be fixedly connected with the driving piece, so that when the driving piece is driven to rotate, the cleaning piece 6.1 can be synchronously driven to rotate so as to clean the filter plate 5, the cleaning piece 6.1 and the driving piece can also be connected with the driving piece through a transmission assembly to realize the transmission state in the diffusion section 3.1 through the driving piece 4 in the rotation process, and the cleaning device is in the working state that the two cleaning structures are arranged in the diffusion section 3.1 through the driving piece 4: the filter plate cleaning device comprises a normal working state and a cleaning working state, wherein the cleaning piece 6.1 is fixed in the diffusion section 3.4 in the normal working state, at the moment, the cleaning piece 6.1 does not rotate, when suspended matters, oil, sundries and other filtered matters are accumulated on the filter plate 5, the cleaning piece 6.1 is controlled and regulated through a driving piece, the filtered matters on the filter plate 5 can be cleaned through rotation of the cleaning piece 6.1 and the cleaning structure 6.1.1, the filter plate 5 is prevented from being blocked by residues, a discharge outlet for discharging the filtered matters can be further formed in the side wall of the diffusion section 3.4, the discharge outlet is closed in the normal working state, the cleaning working state is opened, and the discharge outlet is opened, so that the cleaning piece 6.1 can be continuously switched to the normal working state through the driving piece after the filter plate 5 is cleaned.
In another embodiment of the present utility model, preferably, the water inlet side is provided with a plurality of first water inlet holes 6.2 and a plurality of second water inlet holes 6.3 with different water inlet directions, the plurality of first water inlet holes 6.2 are sequentially arranged at intervals along the circumferential direction of the cleaning member 6.1, the plurality of second water inlet holes 6.3 surround the outer side of the first water inlet holes 6.2, the plurality of first water inlet holes 6.2 form a first water inlet structure, the plurality of second water inlet holes 6.3 form a second water inlet structure, the water inlet direction of the first water inlet holes 6.2 is the same as the water outlet direction and is parallel to the axial direction of the diffusion section 3.4, the second water inlet structure is circumferentially arranged along the water inlet side, the second water inlet structure is arranged at the outermost side of the cleaning member 6.1, the plurality of second water inlet holes 6.3 are sequentially arranged at intervals in the annular groove, the second water inlet holes 6.3 are inclined water inlet ends, i.e. the water inlet directions of the second water inlet holes 6.3 are inclined water inlet ends are inclined, i.e. the water inlet directions of the second water inlet holes 6.3 are parallel to the axial direction of the diffusion section 3.4, and the water inlet directions of the second water inlet structures are parallel to the axial directions of the diffusion section 3.4.
In another embodiment provided by the utility model, preferably, the driving piece comprises a rotating plate 6.4 rotatably connected in the diffusion section 3.4, a first water channel 6.5 and a second water channel 6.6 are arranged on the rotating plate 6.4, the first water channel 6.5 is arranged corresponding to the first water inlet 6.2, the second water channel 6.6 is arranged corresponding to the second water inlet 6.3, and the rotating plate 6.4 is driven to have a first working position and a second working position; in the first operating position, the first waterway 6.5 is in communication with the first inlet aperture 6.2 such that water flows through the first waterway 6.5 and the first inlet aperture 6.2; in the second working position, the second water channel 6.6 is communicated with the second water inlet hole 6.3, and water flow is output from the second water channel 6.6 to generate a circumferential rotation driving force for the cleaning member 6.1 to drive the cleaning member 6.1 to rotate; an automatic driving unit 7.2 is arranged in the jet device 3, the automatic driving unit 7.2 is connected with a rotating plate 6.4, the rotating plate 6.4 can be driven by the automatic driving unit 7.2 to switch between a first working position and a second working position, when wastewater is treated, the rotating plate 6.4 is in the first working position, a cleaning piece 6.1 is in a normal working state, water is conveyed to a filter plate 5 and an aeration head 5.1 for aeration treatment after passing through a first water channel 6.5 and a first water inlet hole 6.2 (at the moment, the second water channel 6.6 and the second water inlet hole 6.3 are mutually staggered to be closed), when suspended matters, oil, sundries and other filtered matters are accumulated on the filter plate 5, the automatic driving unit such as a motor controls the rotating plate 6.4 to rotate to move from the first working position to the second working position, at this time, the first water channel 6.5 and the first water inlet 6.2 are staggered to close, the second water channel 6.6 and the second water inlet 6.3 are correspondingly communicated, the direction of water flow passing through the second water channel 6.6 is changed to correspond to the water inlet direction of the second water inlet 6.3, the water flow output by the second water channel 6.6 is sprayed to the inclined water inlet part of the second water inlet 6.3 to generate a rotary driving force, and under the cooperation driving of the second water channels 6.6 and the second water inlet 6.3, a stable rotary driving force is provided for the cleaning piece 6.1, so that the cleaning piece 6.1 rotates in the diffusion section 3.4 to be in a cleaning working state, and the cleaning piece 6.1 and the cleaning structure 6.1.1 rotate to clean the filter materials on the filter plate 5, so that residues are prevented from blocking the filter plate 5.
In another embodiment provided by the utility model, preferably, the second water channel 6.6 comprises a diversion part 6.6.1 for changing the flow direction of water flow, the water inlet end of the second water inlet hole 6.3 is provided with a blocking plate 6.3.1 along the radial direction of the cleaning piece 6.1, and the axial direction of the diversion part 6.6.1 is intersected with the blocking plate 6.3.1; the second water channel 6.6 comprises a water inlet section and a water outlet section which are connected, the direction of the water inlet section is parallel to the axial direction of the diffusion section 3.4, the diversion part 6.6.1 is arranged on the water outlet section, the water outlet section is arranged at an obtuse angle with the water inlet section, the water inlet end of the second water inlet hole 6.3 is provided with an inclined water inlet part, the baffle plate 6.3.1 is arranged at the opening of the inclined water inlet part, so that when the rotating plate 6.4 moves to the second working position, the second water channel 6.6 corresponds to the second water inlet hole 6.3, after water flows through the second water channel 6.6, the diversion part 6.6.1 enables water to be sprayed towards the baffle plate 6.3.1 and the inclined water inlet part, and a circumferential rotating driving force is provided for the rotating plate.
In still another embodiment provided by the utility model, preferably, a buffer area 1.3, an inclined plate area 1.4 and an air floatation degreasing area 1.5 are sequentially arranged in the tank body along the water flow direction, an oil drain port 1.6 is arranged at the top of the air floatation degreasing area 1.5, the buffer area 1.3, the inclined plate area 1.4 and the air floatation degreasing area 1.5 are sequentially communicated, waste water is conveyed into the buffer area 1.3 through a water inlet, the waste water is gradually settled in the buffer area 1.3 and is kept at a proper temperature, fixed impurities of the waste water are primarily separated, the separated waste water flows into the inclined plate area 1.4 for further separation, so that part of oil and solid impurities are removed, the oil-water mixture solution after the settlement separation of the inclined plate enters the air floatation degreasing area 1.5 again, and air bubbles generated by an air bubble generator adsorb tar, suspended matters and the like in the waste water in the air floatation degreasing area 1.5, are floated out of the water surface under the buoyancy effect, and are discharged through the oil drain port 1.6, and thus oil (tar) or suspended matters in the waste water are separated and removed.
In still another embodiment of the present utility model, preferably, the air flotation oil removal device further includes an oil drain mechanism 7, which is disposed at the top of the air flotation oil removal area 1.5 and is used for draining tar at the top of the air flotation oil removal area 1.5 from the oil drain port 1.6, and after the air bubbles adsorb tar and suspended matters in the wastewater and float on the water surface, the oil drain mechanism 7 can timely drain suspended matters floating on the water surface from the oil drain port 1.6, so as to avoid the suspended matters accumulating on the water surface of the air flotation oil removal area 1.5 and affecting the wastewater treatment effect.
In still another embodiment of the present utility model, preferably, the oil drain mechanism 7 includes a top mounting frame 7.1, a driving unit 7.2 and a rotating disc 7.3 disposed on the top mounting frame 7.1, the rotating disc 7.3 is circumferentially provided with a plurality of driving rods 7.4 having a certain inclination angle with the radial direction of the rotating disc 7.3, the rotating disc 7.3 can be driven by the driving unit 7.2 to rotate in the air-float oil removing area 1.5, the plurality of driving rods 7.4 are sequentially disposed at intervals along the circumferential direction of the rotating disc 7.3, the inclination angle between each driving rod 7.4 and the radial direction of the rotating disc 7.3 is between 0 and 90 degrees, the inclination angle between each driving rod 7.4 and the rotating disc 7.3 can be the same or different, and in the use process, the height of the rotating disc 7.3 can be adjusted through the top mounting frame 7.1 or the driving unit 7.2, so that the liquid level suspended matters with different heights can be cleaned.
In still another embodiment of the present utility model, preferably, the oil drain mechanism 7 further includes a guiding disc 8, the guiding disc 8 is fixedly connected with the top mounting frame 7.1, and the guiding disc 8 is provided with a guiding groove 8.1 along the circumferential direction; the fixed bottom that sets up at top mounting bracket 7.1 of steering wheel 8, steering wheel 7.3 are located steering wheel 8 under, and steering wheel 7.3 and the coaxial setting of steering wheel 8 also can rotate between steering wheel 7.3 and the steering wheel 8 and be connected, and the circumference setting of steering wheel 8 is followed to guide groove 8.1, and the shape of guide groove 8.1 can be circular, oval or other shapes.
In still another embodiment of the present utility model, preferably, the lever 7.4 is rotatably connected to the rotating disc 7.3 through a rotating shaft, the lever 7.4 includes a distal end and a proximal end which are oppositely disposed, the proximal end is located in a guiding space formed by the rotating disc 7.3 and the guiding disc 8, the proximal end is fixedly provided with a guiding post 7.5, and the guiding post 7.5 is slidingly limited in the guiding groove 8.1; the outer side of the rotating disc 7.3 is circumferentially provided with an upper annular side plate 7.6, the upper annular side plate 7.6 is rotationally connected to the guide disc 8, a guide space is formed among the rotating disc 7.3, the upper annular side plate 7.6 and the guide disc 8, the upper annular side plate 7.6 is circumferentially provided with a plurality of arc opening parts 7.7, each deflector rod 7.4 is correspondingly arranged in the arc opening part 7.7, each deflector rod 7.4 can rotate in the arc opening part 7.7, in the use process, the driving unit 7.2 drives the rotating disc 7.3 to rotate, the deflector rods 7.4 synchronously move along with the rotating disc 7.3, in the movement process, the guide grooves 8.1 synchronously drive the guide columns 7.5, namely, the guide columns 7.5 correspondingly move along the guide grooves 8.1 to drive the deflector rods 7.4 to rotate, so that the deflector rods 7.4 can move along the guide grooves 8.1, the deflector rods 7.4 synchronously move along the rotating disc 7.3, the deflector rods can be conveniently described, the deflector rods 7.4 synchronously move along the rotating disc 7.3 and can rotate along the guide grooves 1.4, the rotating grooves 1.4 can move along the rotating shafts, and the rotating shafts 1.4, and the deflector rods can move along the rotating shafts, and the rotating shafts 4, so that the deflector rods are inclined along the rotating shafts 1.4.
In still another embodiment provided by the utility model, preferably, the guiding groove 8.1 comprises a semicircular part 8.2 and an elliptic part 8.3 which are connected, the elliptic part 8.3 is arranged corresponding to the oil drain port 1.6, the guiding column 7.5 moves along the guiding groove 8.1 and has a first movement stroke along the semicircular part 8.2 and a second movement stroke along the elliptic part 8.3, in the first movement stroke, the inclination angle is unchanged, and in the second movement stroke, the inclination angle is gradually increased and then gradually decreased; when the driving rod 7.4 is driven by the driving unit 7.2 to synchronously revolve along with the rotating disc 7.3, the guide groove 8.1 synchronously drives the driving rod 7.4 to do autorotation, the driving rod 7.4 revolves for one circle, the guide post 7.5 synchronously moves for one circle along the guide groove 8.1, the driving rod 7.4 completes a complete self-transmission movement stroke, the complete autorotation movement stroke comprises a continuous first movement stroke and a continuous second movement stroke, when the driving rod 7.4 is gradually far away from the oil drain port 1.6 to a certain position, the guide post 7.5 of the driving rod 7.4 moves into the semicircular part 8.2, the guide post 7.5 rotates along the semicircular part 8.2, the first movement stroke is the autorotation movement of the driving rod 7.4, the inclination angle between the driving rod 7.4 and the radial direction of the rotating disc 7.3 is unchanged, and the inclination angle at the moment is minimum, the best stirring effect of driving lever 7.4 to suspended solid is along with driving lever 7.4 to be close to oil drain port 1.6 when the position is moved to a certain position, and guide post 7.5 moves into oval portion 8.3 this moment, and guide post 7.5 moves along oval portion 8.3 and makes driving lever 7.4 rotate, and this is the second operation stroke, and in this motion stroke driving lever 7.4 is revolution motion and rotation motion simultaneously, and the inclination between driving lever 7.4 and the radial direction of rotating disc 7.3 becomes gradually big earlier, and then becomes gradually diminish, and when driving lever 7.4 moves to the position that corresponds to oil drain port 1.6 along with rotating disc 7.3 this moment, the inclination between driving lever 7.4 and the radial direction of rotating disc 7.3 is the biggest, so is convenient for the suspended solid to discharge from oil drain port 1.6, effectively avoids the suspended solid to move along with driving lever 7.4 always.
In still another embodiment, the utility model preferably further comprises an air blowing component which is arranged in the top mounting frame 7.1, an air blowing port 7.8 corresponding to the oil drain port 1.6 is arranged on the guide disc 8, the air blowing port 7.8 is communicated with the air blowing component, air can be blown to the surface of the air floatation oil removing area 1.5 through the air blowing component and the air blowing port 7.8, suspended matters on the air floatation oil removing area 1.5 are blown to the oil drain port 1.6, and thus the suspended matters on the surface of the air floatation oil removing area 1.5 are stirred to the air floatation oil removing area 1.5 corresponding to the oil drain port 1.6 through the stirring rod 7.4, and the suspended matters can be blown to the oil drain port 1.6 through the air blowing component.
While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.
Claims (2)
1. The utility model provides a coke oven plant's waste water tar recovery unit, includes waste water treatment jar and bubble generation mechanism, be provided with shunt opening and input port on the waste water treatment jar, set gradually buffer zone, swash plate district and air supporting deoiling district along the flow direction of waste water in the waste water treatment jar, make shunt opening, water pump, ejector and input port be connected in proper order through the connecting pipe, waste water in the waste water treatment jar is exported through the shunt opening, and carry to the ejector through the water pump in, waste water forms the dissolved gas mixture in the ejector and carries to in the waste water treatment jar again through the input port, bubble generation mechanism includes water pump and ejector that sets up between shunt opening and the input port, the ejector includes suction section, shrink section, mixed section and the diffusion section that sets gradually along the rivers direction, be provided with the aeration head in the diffusion section, its characterized in that still includes the vortex subassembly, the vortex subassembly includes the spoiler and along the spiral vortex piece that rivers direction set up, the spoiler is provided with on the input port and with the diffusion section is connected, be provided with on the spoiler with the input part that is linked with the waste water treatment jar,
the vortex assembly further comprises a fixing plate transversely arranged in the diffusion section, a plurality of spiral vortex pieces are vertically arranged on the fixing plate, water permeable holes corresponding to the spiral vortex pieces are formed in the fixing plate, the input part comprises a plurality of input holes arranged on the vortex plate, the input holes are arranged in one-to-one correspondence with the spiral vortex pieces, one end, far away from the fixing plate, of the spiral vortex piece part is positioned in the input holes, and an annular flowing gap for liquid to flow is formed between the spiral vortex pieces and the input holes; the bubbles are conveyed into the wastewater treatment tank from the input part after sequentially passing through the aeration head and the spiral turbulence piece in the ejector;
the filter plate is transversely arranged in the diffusion section, a plurality of aeration heads are arranged on one side, close to the fixed plate, of the filter plate at intervals, the filter plate further comprises a rotary cleaning assembly, the rotary cleaning assembly comprises a driving piece and a cleaning piece which is rotationally connected in the diffusion section, the cleaning piece can be driven by the driving piece to rotate in the diffusion section so as to clean the filter plate, the cleaning piece comprises a cleaning side attached to the filter plate and a water inlet side corresponding to the cleaning side, a plurality of cleaning structures are arranged on the cleaning side, a plurality of first water inlet holes and a plurality of second water inlet holes with different water inlet directions are arranged on the water inlet side, the first water inlet holes are sequentially arranged at intervals along the circumferential direction of the cleaning piece, and the second water inlet holes encircle the outer side of the first water inlet holes; the driving piece comprises a rotating plate which is rotatably connected in the diffusion section, a first water channel and a second water channel are arranged on the rotating plate, the first water channel is correspondingly arranged with the first water inlet, the second water channel is correspondingly arranged with the second water inlet, and the rotating plate is driven to have a first working position and a second working position; in the first working position, the first water channel is communicated with the first water inlet hole so that water flows through the first water channel and the first water inlet hole; in the second working position, the second water channel is communicated with the second water inlet hole, and water flow is output from the second water channel to generate a circumferential rotary driving force for the cleaning piece so as to drive the cleaning piece to rotate;
the oil discharging mechanism is arranged at the top of the air flotation oil removing area and comprises a top mounting frame, a driving unit and a rotating disc, wherein the driving unit and the rotating disc are arranged on the top mounting frame, a plurality of deflector rods which are inclined with the radial direction of the rotating disc are arranged on the rotating disc along the circumferential direction, the rotating disc can be driven by the driving unit to rotate in the air flotation oil removing area, the plurality of deflector rods are sequentially arranged at intervals along the circumferential direction of the rotating disc, and the inclination angle between each deflector rod and the radial direction of the rotating disc is between 0 and 90 degrees;
the oil discharging mechanism further comprises a guide disc, the guide disc is fixedly connected with the top mounting frame, and a guide groove is formed in the guide disc along the circumferential direction; the guide plate is fixedly arranged at the bottom of the top mounting frame, the rotating plate is positioned under the guide plate, the rotating plate and the guide plate are coaxially arranged, the rotating plate and the guide plate are rotationally connected, the guide groove is arranged along the circumferential direction of the guide plate, the deflector rod is rotationally connected to the rotating plate through the rotating shaft, the deflector rod comprises a far end and a near end which are oppositely arranged, the near end is positioned in a guide space formed by the rotating plate and the guide plate, a guide column is fixedly arranged on the near end, and the guide column is limited in the guide groove in a sliding manner; the outer side of the rotating disc is provided with an upper annular side plate along the circumferential direction, the upper annular side plate is rotationally connected to the guide disc, a guide space is formed among the rotating disc, the upper annular side plate and the guide disc, the upper annular side plate is provided with a plurality of arc opening parts along the circumferential direction, each deflector rod is correspondingly arranged in the arc opening parts, and each deflector rod can rotate in the arc opening parts.
2. The apparatus according to claim 1, wherein the aperture of the inlet hole is gradually decreased in the water flow direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210634285.9A CN114920320B (en) | 2022-06-06 | 2022-06-06 | Waste water and tar recovery device for coking plant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210634285.9A CN114920320B (en) | 2022-06-06 | 2022-06-06 | Waste water and tar recovery device for coking plant |
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| CN114920320A CN114920320A (en) | 2022-08-19 |
| CN114920320B true CN114920320B (en) | 2023-05-16 |
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| CN202210634285.9A Active CN114920320B (en) | 2022-06-06 | 2022-06-06 | Waste water and tar recovery device for coking plant |
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| CN116083734A (en) * | 2022-12-19 | 2023-05-09 | 中铁资源集团有限公司 | Oil removal device for copper-rich liquid in copper hydrometallurgy |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5700537B2 (en) * | 2011-03-28 | 2015-04-15 | 三機工業株式会社 | Air diffuser system and air diffuser cleaning method |
| CN203971464U (en) * | 2014-01-06 | 2014-12-03 | 辽宁华孚环境工程股份有限公司 | Heterogeneous oily-water seperating equipment |
| CN106167284A (en) * | 2016-08-22 | 2016-11-30 | 江苏金点环保科技有限公司 | A kind of jet bubble generator of cyclone air-flotation device |
| CN209651933U (en) * | 2019-02-01 | 2019-11-19 | 山东朗清环保技术有限公司 | A kind of jet type air floating device |
| CN111298670B (en) * | 2020-03-31 | 2022-02-18 | 中国石油大学(华东) | Micro-nano bubble generator |
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