CN114920320A - Coke-oven plant waste water tar recovery unit - Google Patents
Coke-oven plant waste water tar recovery unit Download PDFInfo
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- CN114920320A CN114920320A CN202210634285.9A CN202210634285A CN114920320A CN 114920320 A CN114920320 A CN 114920320A CN 202210634285 A CN202210634285 A CN 202210634285A CN 114920320 A CN114920320 A CN 114920320A
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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
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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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
- 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)
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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
- C02F7/00—Aeration of stretches of water
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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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Abstract
The invention discloses a coke-oven plant wastewater tar recovery device, which comprises a wastewater treatment tank and a bubble generation mechanism, wherein the bubble generation mechanism comprises a water pump and an ejector which are arranged between a flow splitting port and an input port, the ejector 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 turbulence component comprises a spoiler and a spiral turbulence member, the spoiler is arranged on the input port and is connected with the diffusion section, an input part communicated with the wastewater treatment tank is arranged on the spoiler, and bubbles are conveyed into the wastewater treatment tank from the input part after sequentially passing through the aeration head and the spiral turbulence member in the ejector. According to the device for recovering the tar in the wastewater of the coking plant, provided by the invention, the bubbles in the water flow are treated for multiple times through the aeration head, the spiral flow disturbing piece and the flow disturbing plate, so that large bubbles in the water flow are fully crushed to form small bubbles with proper and uniform sizes, and the treatment effect of the tar in an air floatation oil removal area is improved.
Description
Technical Field
The invention relates to the technical field of wastewater treatment, in particular to a coke-oven plant wastewater tar recovery device.
Background
The main raw material of the desulfurization ammonia distillation process is residual ammonia water, the components in the ammonia water are relatively complex, the toxicity is extremely high, the typical amount of industrial wastewater which is difficult to degrade is obtained, an effective ammonia distillation process is adopted to treat the ammonia elements and other pollutants in the ammonia water, the residual ammonia water enters a large tank for pretreating the residual ammonia water to stand after being precipitated and separated by a mechanized clarification tank or a slag scraping tank of a recovery process, oil (tar) and impurities in the residual ammonia water are further removed in the period, at present, an air flotation oil removal method is mostly adopted to remove the oil (tar) and the impurities in the residual ammonia water, air is absorbed into a residual ammonia water system by using a jet flow mode to form an air-water mixture, the air-water mixture returns to an air flotation chamber through an aeration head, the tar and floc are adhered to bubbles treated by the aeration head, the condition that the integral specific gravity is smaller than that of the residual ammonia water is caused, and the floc floats out of the water surface according to the buoyancy principle, thereby separating oil (tar) or suspended matters in the residual ammonia water.
For example, the utility model has the publication number of CN205709964U, namely, "a residual ammonia water air-flotation oil removal system", and the application of the utility model is published as 2016, 11, 23, and the residual ammonia water air-flotation oil removal system comprises an air-flotation oil removal chamber, a dissolved air chamber, a jet pump, an air introduction pipe, a tail gas circulation pipe and a three-way valve; the air flotation oil removing chamber comprises a residual ammonia water inlet for introducing residual ammonia water to be removed, a residual ammonia water outlet for discharging residual ammonia water after air flotation oil removal and an oil substance outlet for discharging oil substances produced after air flotation oil removal, and the residual ammonia water inlet of the air flotation oil removing 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 to extract 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 to supply air or tail gas into the jet pump, the other end of the air introducing pipe is emptied, the other end of the tail gas circulating pipe is communicated with the air floatation oil removal chamber, the joint of the other end of the tail gas circulating pipe 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 the dissolved air chamber, and the gas-liquid mixture outlet of the dissolved air chamber is communicated with the bottom of the air floatation oil removal machine. The utility model discloses in the use, form air water mixture with air and water through the jet pump, air water mixed liquid carries to the air supporting deoiling indoorly behind the dissolved air chamber, utilizes tail gas circulating pipe with jet pump and air supporting deoiling room intercommunication, constantly sucks the inside tail gas of air supporting deoiling room and makes it become the air supply of new dissolved air.
If the publication number is CN209651933U, the name is jet type air flotation device, the publication number is 'a jet type air flotation device', the application of the utility model patent with publication number of 2019, 11, month 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 bubble generator comprises a pipe body, the pipe 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 pipe is arranged on the side wall of the suction section, the fluid inlet pipe is communicated with the atmosphere, a spiral turbulence piece is arranged in the contraction section, and a filter screen is arranged in the diffusion section. The utility model provides a efflux bubble generator, the contraction section of body is from the toper pipe of big grow, the diffuser section is for following the toper pipe of little grow, consequently, produce the negative pressure in the suction section, inhale the air, and the spiral number through spiral vortex piece and the mesh aperture of filter screen adjust bubble's size, let in the aquatic with the microbubble form after the bubble blowout, make the granule adhesion of microbubble and aquatic suspension, form water-gas granule three-phase mixed system, after the granule adhesion goes up the bubble, density is less than water and the come-up surface of water promptly, form the scum layer, separate away from the aquatic.
When utilizing efflux formula dissolved air device to handle surplus aqueous ammonia, bubble size and quantity that ejector and aeration head produced are the key factor that influences the aqueous ammonia effect of handling, the bubble diameter of carrying to the indoor air supporting deoiling is smaller, and the quantity is more, the effect of air supporting is better, it is also better to the oil and the impurity removal effect in the surplus aqueous ammonia, when the air inlet is dizzy too big, can't form even dissolved air (gas-water) mixture, the air supporting effect will descend, however jet pump or efflux bubble generator among the prior art can not produce the suitable and even bubble of size yet, thereby produce the influence to the treatment effect of tar in the aqueous ammonia, remaining tar can lead to the fact the jam to the equipment of follow-up processing in the aqueous ammonia.
Disclosure of Invention
The invention aims to provide a coke-oven plant wastewater tar recovery device to solve the defects in the prior art.
In order to achieve the above purpose, the invention provides the following technical scheme:
a coke-oven plant wastewater tar recovery device comprises a wastewater treatment tank and a bubble generation mechanism, wherein the wastewater treatment tank is provided with a shunt port and an input port, the bubble generating mechanism comprises a water pump and an ejector which are arranged between the flow dividing port and the input port, the ejector comprises a suction section, a contraction section, a mixing section and a diffusion section which are sequentially arranged along the water flow direction, the diffusion section is internally provided with an aeration head and also comprises a turbulence component, the turbulence component comprises a turbulence plate and a spiral turbulence piece arranged along the water flow direction, the spoiler is arranged on the input port and connected with the diffuser section, an input part communicated with the wastewater treatment tank is arranged on the spoiler, the bubbles sequentially pass through the aeration head and the spiral turbulence piece in the ejector and then are conveyed into the wastewater treatment tank from the input part.
The device for recovering the wastewater and the tar in the coke-oven plant comprises a diffusion section, wherein the diffusion section is provided with a plurality of spiral turbulence members, and the spiral turbulence members are arranged on the diffusion section in a transverse mode.
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.
The coke-oven plant wastewater tar recovery device is characterized in that the aperture of the input hole is gradually reduced along the water flow direction.
In the above device for recovering wastewater and tar in a coke-oven plant, the end of the spiral spoiler part, which is far away from the fixing plate, is located in the input hole, and an annular flowing gap for liquid flowing is formed between the spiral spoiler and the input hole.
The device for recovering the coke-oven plant wastewater and tar also 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 close to the fixed plate at intervals.
The coke-oven plant wastewater tar recovery device further comprises a rotary cleaning assembly, wherein the rotary cleaning assembly comprises a driving piece and a cleaning piece which is rotatably connected in the diffusion section, and the cleaning piece can receive the driving of the driving piece to rotate in the diffusion section so as to clean the filter plate.
Foretell coking plant waste water tar recovery unit, the clearance piece include with the clearance side of filter plate laminating and with the side of intaking that the clearance side corresponds, 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 direction of intaking is different, first inlet opening is followed the circumference of clearance piece sets up at interval in proper order, and is a plurality of second inlet opening encircles in the outside of first inlet opening.
In the above recycling apparatus for wastewater and tar from coke-oven plant, the driving member includes a rotating plate rotatably connected in the diffuser section, the rotating plate is provided with a first water channel and a second water channel, the first water channel is arranged corresponding to the first water inlet, the second water channel is arranged corresponding to 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 flow passes 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 invention provides a coke-oven plant wastewater tar recovery device, which comprises a wastewater treatment tank, a bubble generation mechanism and a turbulence component, wherein the bubble generation mechanism comprises a water pump and an ejector, the turbulence component comprises a turbulence plate arranged at the end part of a diffusion section of the ejector and a spiral turbulence member arranged along the water flow direction, an input part communicated with the wastewater treatment tank is arranged on the turbulence plate, water flow sequentially passes through an aeration head and the spiral turbulence member in the ejector and then is conveyed into the wastewater treatment tank from the input part, and the aeration head, the spiral turbulence member and the turbulence plate are used for carrying out multiple treatment on bubbles in the water flow, so that large bubbles in the water flow are fully crushed to form small bubbles with proper and uniform sizes, and the treatment effect of an air floatation oil removal area on tar is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used 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 invention, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is a schematic structural view of a wastewater treatment tank provided in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a jet device provided in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a spoiler assembly according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a fixing plate according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a spoiler according to an embodiment of the invention;
FIG. 6 is an exploded view of a rotary cleaning assembly according to another embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a rotating plate according to another embodiment of the present invention;
FIG. 8 is a schematic structural view of a cleaning member according to another embodiment of the present invention;
FIG. 9 is a second schematic structural view of a cleaning member according to another embodiment of the present invention;
FIG. 10 is a schematic structural diagram of a cleaning structure according to another embodiment of the present invention;
FIG. 11 is a top view of an air bearing zone provided in accordance with yet another embodiment of the present invention;
fig. 12 is a schematic structural view of an oil discharge mechanism according to still another embodiment of the present invention;
FIG. 13 is a schematic structural view of a rotary disk according to yet another embodiment of the present invention;
fig. 14 is a schematic structural diagram of a guide disc according to still another embodiment of the present invention.
Description of reference numerals:
1. a wastewater treatment tank; 1.1, a shunt port; 1.2, an input port; 1.3, a buffer area; 1.4, an inclined plate area; 1.5, an air flotation oil removal area; 1.6, an oil drain port; 2. a bubble generating mechanism; 2.1, a water pump; 3. an ejector; 3.1, a suction section; 3.2, a contraction section; 3.3, a mixing section; 3.4, a diffusion section; 3.5, a nozzle; 3.6, an air inlet channel; 4. a spoiler assembly; 4.1, a spoiler; 4.2, an input hole; 4.3, a spiral spoiler; 4.4, fixing the 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; 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 flow guide part; 7. an oil discharge mechanism; 7.1, a top mounting rack; 7.2, a driving unit; 7.3, rotating a disc; 7.4, a deflector rod; 7.5, a guide post; 7.6, an upper annular side plate; 7.7, an arc-shaped opening part; 7.8, an air blowing port; 8. a guide plate; 8.1, a guide groove; 8.2, a semicircular part; 8.3, oval portion.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
As shown in fig. 1-14, an embodiment of the present invention provides a wastewater and tar recovery device for a coke-oven plant, which includes a wastewater treatment tank 1 and a bubble generation mechanism 2, wherein the wastewater treatment tank 1 is provided with a diversion port 1.1 and an input port 1.2, the bubble generation mechanism 2 includes a water pump 2.1 and an ejector 3 arranged between the diversion port 1.1 and the input port 1.2, the ejector 3 includes a suction section 3.1 and a contraction section 3.2 arranged in sequence along a water flow direction, mix section 3.3 and diffuser 3.4, be provided with aeration head 5.1 in the diffuser 3.4, still include vortex subassembly 4, vortex subassembly 4 includes spoiler 4.1 and the spiral vortex spare 4.3 that sets up along the rivers direction, spoiler 4.1 sets up on input port 1.2 and is connected with diffuser 3.4, be provided with the input part that is linked together with waste water treatment jar 1 on spoiler 4.1, the bubble is carried to waste water treatment jar 1 in from the input part after aeration head 5.1 and spiral vortex spare 4.3 in proper order in ejector 3.
Specifically, the wastewater treatment tank 1 is used for storing and treating wastewater, the wastewater treatment tank 1 is provided with a water inlet, a water outlet and a sewage outlet, the water inlet is used for conveying the wastewater to be treated into the wastewater treatment tank 1, the water outlet is used for outputting the treated wastewater, and the sewage outlet can discharge oil substances produced after air floatation oil removal in the wastewater treatment process, which is the prior art and is not described any more, the wastewater treatment tank 1 at least comprises an air floatation oil removal area 1.5, a buffer area 1.3, an inclined plate area 1.4 and an air floatation oil removal area 1.5 can be sequentially arranged in the wastewater treatment tank 1 along the flow direction of the wastewater, so that the wastewater is sequentially treated, the bubble generation mechanism 2 is used for conveying a large amount of bubbles into the air floatation oil removal area 1.5, the bubble generation mechanism 2 comprises a water pump 2.1 and a jet ejector 3, the wastewater treatment tank 1 is provided with a branch port 1.1 and an input port 1.2, make diffluence pass 1.1 through the connecting pipe, water pump 2.1, ejector 3 and input port 1.2 link gradually, so water in waste water treatment jar 1 passes through diffluence pass 1.1 output, and carry to the ejector 3 in through water pump 2.1, waste water forms in ejector 3 and transports to waste water treatment jar 1 again through input port 1.2 after dissolving gas (gas-water) mixture, tar in the waste water, the suspended particles in dispersion oil or the aquatic attach on the bubble of dissolving gas mixture, float to the top of waste water treatment jar 1 together along with the bubble, thereby discharge the realization to the processing of waste water from the drain.
In the embodiment, the ejector 3 can be set as one, or two, three or more, 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, the ejector 3 is internally provided with a suction section 3.1, a contraction section 3.2, a mixing section 3.3 and a diffusion section 3.4 in sequence from the water inlet end to the water outlet section, the suction section 3.1, the contraction section 3.2, the mixing section 3.3 and the diffusion section 3.4 are connected in the ejector 3 to form a jet flow channel, the flow cross-sectional areas of the jet flow channels of the suction section 3.1 and the contraction section 3.2 are gradually reduced, the flow cross-sectional areas of the jet flow channels of the mixing section 3.3 and the diffusion section 3.4 are gradually increased, a nozzle 3.5 is arranged in the suction section 3.1 and the contraction section 3.2 to spray water flow into the jet flow channel, an air inlet channel 3.6 is arranged on the suction section 3.1 or the contraction section 3.2, so that the flow cross-sectional area of the jet flow channel at the connection position of the contraction section 3.2 and the mixing section 3.3.3 is minimum, and the jet flow channel is communicated with the air inlet channel 3.6, when the waste water passes through the reduced flow cross section, the waste water has the phenomenon of flow velocity increase, the flow velocity increase is accompanied with the reduction of fluid pressure, thereby generating adsorption action on air, namely, a Venturi tube structure is formed inside the jet flow device 3, and due to Venturi effect, the air is sucked into the jet flow channel and mixed with the waste water in the mixing section 3.3 and the diffusion section 3.4 to form air-water mixed fluid, and the air-water mixed fluid is conveyed to the inside of the waste water treatment tank 1 from the input port 1.2. The air inlet channel 3.6 in the embodiment can be set to be one, two, three or more as required, one of the air inlet channels 3.6 can also be connected with the inside of the wastewater treatment tank 1 through a circulating pipe, so that tail gas in the air flotation degreasing chamber can be continuously sucked to be a new dissolved gas source, the escape of the tail gas in the air flotation degreasing chamber is reduced or even avoided, and the accumulation of the tail gas above the liquid level in the air flotation degreasing chamber is reduced.
In this embodiment, a jet flow channel section with a constant flow cross-sectional area is disposed on one side of the diffuser section 3.4 away from the mixing section 3.3, an aeration head 5.1 and a turbulence member 4 are disposed in the jet flow channel section, air and water are contacted and dissolved by the aeration head 5.1 to form an air-water mixture, the particle size of bubbles in the air-water mixture is reduced, when the air-water mixture passes through the turbulence member 4 along the fluid channel, the bubbles in the air-water mixture are further reduced, so that the size of bubbles delivered to the wastewater treatment tank 1 is appropriate and uniform, the treatment effect on oil (tar) and suspended matters in wastewater is improved, the turbulence member 4 comprises a spoiler 4.1 and a spiral spoiler 4.3 which are disposed in a matching manner, the spoiler 4.1 is disposed at one end of the diffuser section 3.4 connected with the input port 1.2, an input part is disposed on the spoiler 4.1, the diffuser section 3.4 is communicated with the oil removal 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 section 3.4, the spiral spoiler 4.3 can be a strip-shaped structure arranged spirally, optionally, the spiral spoiler 4.3 is a cylindrical body with a spiral groove arranged on the circumferential surface, and the spiral direction of the spiral spoiler 4.3 is consistent with the flow direction of water, namely when the wastewater flows to the spiral spoiler 4.3 of the diffuser section 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 parts, and the spiral spoiler 4.3 is in one-to-one correspondence with the input parts, a flow gap for water to flow is formed between the spiral spoiler 4.3 and the input part, rivers arrive 4.3 backs from aeration head 5.1 output spiral vortex piece, because rivers flow with the straight line direction originally, arrive spiral vortex piece 4.3 backs, rivers divide into the stranded, and change into the curve state by the straight line state, rivers produce the impact to spiral vortex piece 4.3 of spiral form, can produce water smoke after the impact, the abundant breakage of big bubble in the rivers forms a plurality of small bubbles, form the small bubble atomizing state of micron order, carry to the air supporting grease trap room from each input part afterwards, it is less and even to carry the bubble in the air supporting grease trap room so, can effectively promote tar in the waste water, dispersed oil or aquatic suspended particles's removal effect.
The embodiment of the invention provides a wastewater tar recovery device for a coke-oven plant, which comprises a wastewater treatment tank 1, a bubble generation mechanism 2 and a turbulence component 4, wherein the bubble generation mechanism 2 comprises a water pump 2.1 and an ejector 3, the turbulence component 4 comprises a spoiler 4.1 arranged at the end part of a diffusion section 3.4 of the ejector 3 and a spiral spoiler 4.3 arranged along the water flow direction, an input part communicated with the wastewater treatment tank 1 is arranged on the spoiler 4.1, water flow sequentially passes through an aerator 5.1 and the spiral spoiler 4.3 in the ejector 3 and then is conveyed into the wastewater treatment tank 1 from the input part, and bubbles in the water flow are treated for multiple times through the aerator 5.1, the spiral spoiler 4.3 and the spoiler 4.1, so that large bubbles in the water flow are fully crushed to form small bubbles with proper and uniform sizes, and the treatment effect of a gas floating tar removal area 1.5 on the water flow is improved.
In the embodiment provided by the invention, preferably, the turbulent flow component 4 further comprises a fixing plate 4.4 transversely arranged in the diffusion section 3.4, the fixing plate 4.4 is vertically provided with a plurality of spiral turbulent flow members 4.3, the fixing plate 4.4 is provided with water permeable holes 4.5 corresponding to the spiral turbulent flow members 4.3, the spiral turbulent flow members 4.3 are arranged along the direction parallel to the axis of the diffusion section 3.4, the spiral turbulent flow members 4.3 are sequentially arranged at intervals along the circumferential direction of the fixing plate 4.4, each spiral turbulent flow member 4.3 is vertically connected with the fixing plate 4.4, the spiral turbulent flow members 4.3 are cylindrical bodies with spiral grooves on the circumferential surface, the fixing plate 4.4 is provided with a plurality of water permeable holes 4.5 at intervals, in order to improve the bubble breaking effect of the spiral turbulent flow members 4.3, the water permeable holes 4.5 can be arranged corresponding to the spiral water permeable grooves on the spiral turbulent flow members 4.3, namely, one side of each spiral turbulent flow member 4.3 is correspondingly provided with 4.5, thus, water flow is correspondingly conveyed into the spiral groove after passing through the water permeable holes 4.5.
In the embodiment provided by the invention, 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 hole 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-shaped plate bent towards the direction of the air-floated oil removing chamber, so that more input holes 4.2 are obtained in the unit radial cross-sectional area on one hand, the input holes 4.2 are closer to the inside of the wastewater treatment tank 1 on the other hand, a large amount of bubbles are conveniently dispersed, more bubbles are generated and the bubbles are conveniently dispersed, the input holes 4.2 are sequentially arranged at intervals along the circumferential direction of the spoiler 4.1, the input holes 4.2 are conical holes, and the liquid inlet ends of the input holes 4.2 are larger in size and correspond to the spiral spoiler 4.3 to realize the drainage of the wastewater.
In the embodiment provided by the invention, preferably, one end of the spiral spoiler 4.3, which is far 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 the size gradually reduced along the water flow direction, and the annular flow gap 4.6 is gradually reduced along the water flow direction, so that when the water flow flows to 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 water flow direction, so that the water flow flows along the spiral groove direction on the spiral spoiler 4.3, thereby improving the impact effect between the water flow and the spiral spoiler 4.3, and rapidly crushing large air bubbles in the water flow to form more small air bubbles and conveying the small air bubbles from the input hole 4.2 to the air flotation oil removal chamber.
In another embodiment provided by the invention, preferably, the sewage treatment device further comprises a filter plate 5 transversely arranged in the diffusion section 3.4, a plurality of aeration heads 5.1 are arranged at intervals on one side of the filter plate 5 close to the fixing plate 4.4, the filter plate 5 has a filtering effect on the sewage, the aeration heads 5.1 comprise water inlet parts, a plurality of filter parts are arranged on the filter plate 5, filter holes are arranged on the filter parts, the filter parts and the water inlet parts are arranged in one-to-one correspondence, the water is conveyed into each water inlet part through the filter parts after flowing to the diffusion section 3.4, and is subjected to aeration treatment through the aeration heads 5.1, and in the process, the filter holes are used for filtering suspended matters, oil, impurities and the like in the sewage, so that the suspended matters, the oil, the impurities and the like are prevented from entering the aeration heads 5.1 to cause blockage.
In another embodiment of the present invention, it is preferable that the cleaning device further comprises a rotary cleaning assembly 6, the rotary cleaning assembly 6 comprises a driving member and a cleaning member 6.1 rotatably connected in the diffuser section 3.4, the cleaning member 6.1 can be driven by the driving member to rotate in the diffuser section 3.4 to clean the filter plate 5, the driving member and the cleaning member 6.1 are both rotatably connected in the diffuser section 3.4, the cleaning member 6.1 comprises a cleaning side 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 member 6.1 can clean the filter plate 5 during rotation, the cleaning structures 6.1 can be fixedly connected with the driving member, so that when the driving member is driven to rotate, the cleaning member 6.1 is synchronously driven to clean the filter plate 5, the cleaning element 6.1 and the driving element can also be in transmission connection through the transmission assembly, so that the cleaning element 6.1 is driven by the driving element through the transmission assembly to rotate in the diffuser section 3.4, and in the use process, the cleaning element 6.1 has two working states: normal operating condition and clearance operating condition, under normal operating condition, clearance piece 6.1 is fixed in diffuser 3.4's inside, clearance piece 6.1 does not rotate this moment, when piling up the filter on the filter 5, when filtering matters such as suspended solid, oil and debris, control through the driving piece and adjust, make clearance piece 6.1 be in clearance operating condition, can clear up the filtering matters on the filter 5 through clearance piece 6.1 and clearance structure 6.1.1 rotation, avoid the residue to block up filter 5, can also be provided with the discharge port of discharging the filtering matters on diffuser 3.4's lateral wall, under normal operating condition, the discharge port is closed, open under clearance operating condition, the discharge port is opened, after the filter 5 is cleared up, accessible driving piece makes clearance piece 6.1 continue to switch to normal operating condition.
In another embodiment provided by the invention, 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, the plurality of first water inlet holes 6.2 are arranged at intervals in sequence along the circumferential direction of the cleaning piece 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 and the water outlet direction of the first water inlet holes 6.2 are the same and are parallel to the axial direction of the diffusion section 3.4, the second water inlet structure is arranged along the circumferential direction of the water inlet side, the second water inlet structure is arranged at the outermost side of the cleaning piece 6.1, the second water inlet structure can be an annular groove, the plurality of second water inlet holes 6.3 are arranged at intervals in sequence in the annular groove, the second water inlet holes 6.3 are through holes with inclined water inlet parts at a certain included angle with the axial direction of the diffusion section 6.3, the water outlet direction of the second water inlet hole 6.3 is parallel to the axial direction of the diffusion section 3.4.
In another embodiment provided by the present invention, preferably, the driving member includes a rotating plate 6.4 rotatably connected in the diffuser section 3.4, the rotating plate 6.4 is provided with a first water channel 6.5 and a second water channel 6.6, the first water channel 6.5 is disposed corresponding to the first water inlet 6.2, the second water channel 6.6 is disposed 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 working position, the first water channel 6.5 is communicated with the first water inlet hole 6.2 so that water flow passes through the first water channel 6.5 and the first water inlet hole 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 rotary driving force for the cleaning piece 6.1 to drive the cleaning piece 6.1 to rotate; an automatic driving unit 7.2 is arranged in the ejector 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 waste water is treated, the rotating plate 6.4 is in the first working position, the cleaning piece 6.1 is in a normal working state, water is conveyed to the filter plate 5 and the aeration head 5.1 through the first water channel 6.5 and the first water inlet hole 6.2 to carry out aeration treatment (at the moment, the second water channel 6.6 and the second water inlet hole 6.3 are staggered and closed mutually), when filtering matters such as suspended matters, oil and sundries are accumulated on the filter plate 5, the automatic driving unit controls the rotating plate 6.4 to rotate by a motor to move from the first working position to the second working position, at the moment, the first water channel 6.5 and the first water inlet hole 6.2 are staggered and closed mutually, and the second water inlet hole 6.6 is correspondingly communicated with the second water inlet hole 6.3, the rivers pass through 6.6 rear direction of second water course and change in order to correspond with the direction of intaking of second inlet opening 6.3, the rivers of second water course 6.6 output spout the slope inlet opening department of second inlet opening 6.3 and produce a rotary driving power, under the cooperation drive of a plurality of second water courses 6.6 and second inlet opening 6.3, thereby for clearance piece 6.1 provides a stable rotary driving power, make clearance piece 6.1 rotatory in order to be in clearance operating condition in diffuser section 3.4, clearance piece 6.1 and clearance structure 6.1.1 are rotatory can clear up the filth on the filter 5, avoid the residue to block up filter 5.
In another embodiment provided by the present invention, preferably, the second water channel 6.6 includes a flow guiding portion 6.6.1 for changing the flow direction of the 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 member 6.1, and the axial direction of the flow guiding portion 6.6.1 intersects 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 flow guide part 6.6.1 is arranged on the water outlet section, the water outlet section and the water inlet section are arranged in an obtuse angle, the water inlet end of the second water inlet hole 6.3 is provided with an inclined water inlet part, and the blocking plate 6.3.1 is provided with an 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 at the moment, and after water passes through the second water channel 6.6, the flow guide part 6.6.1 enables the water to be sprayed towards the blocking plate 6.3.1 and the inclined water inlet part, and a circumferential rotary driving force is provided for the rotating plate.
In still another embodiment provided by the invention, preferably, a buffer area 1.3, an inclined plate area 1.4 and an air floatation oil removal area 1.5 are sequentially arranged in the tank body along the water flow direction, an oil discharge port 1.6 is arranged at the top of the air floatation oil removal area 1.5, the buffer area 1.3, the inclined plate area 1.4 and the air floatation oil removal area 1.5 are sequentially communicated, wastewater is conveyed into the buffer area 1.3 through a water inlet, the wastewater gradually settles in the buffer area 1.3 and stands to a proper temperature, the fixed impurities of the waste water are primarily separated, the separated waste water flows into the inclined plate area 1.4 for further separation, thereby removing part of oil and solid impurities, leading the oil-water mixed solution after the inclined plate sedimentation separation to enter an air floatation oil removal area 1.5, leading bubbles generated by a bubble generator to adsorb tar, suspended matters and the like in the wastewater in the air floatation oil removal area 1.5, floating out of the water surface under the action of buoyancy and discharging through an oil discharge port 1.6, thereby realizing the separation and removal of oil (tar) or suspended matters in the wastewater.
In another embodiment provided by the present invention, preferably, the present invention further includes an oil discharging mechanism 7, which is disposed at the top of the air flotation oil removing area 1.5, and is configured to discharge tar at the top of the air flotation oil removing area 1.5 from the oil discharging port 1.6, after bubbles adsorb tar and suspended matters in the wastewater and float out of the water surface, the oil discharging mechanism 7 can discharge suspended matters floating on the water surface from the oil discharging port 1.6 in time, so as to prevent the suspended matters from accumulating on the water surface of the air flotation oil removing area 1.5, thereby affecting the wastewater treatment effect.
In still another embodiment provided by the present invention, preferably, the oil discharging mechanism 7 includes a top mounting bracket 7.1, and a driving unit 7.2 and a rotating disc 7.3 which are arranged on the top mounting bracket 7.1, the rotating disc 7.3 is circumferentially provided with a plurality of shift levers 7.4 which form a certain inclination angle with the radial direction of the rotating disc 7.3, the rotating disc 7.3 can receive the driving of the driving unit 7.2 to rotate in the air flotation oil removing region 1.5, the shift levers 7.4 are sequentially arranged along the circumferential direction of the rotating disc 7.3 at intervals, the inclination angle between the radial direction of each shift lever 7.4 and the radial direction of the rotating disc 7.3 is between 0 degree and 90 degrees, the inclination angle between each shift lever 7.4 and the rotating disc 7.3 can be the same or different, and in the using process, the height of the rotating disc 7.3 can be adjusted by the top mounting bracket 7.1 or the driving unit 7.2, so that suspended matters at different heights can be cleaned.
In a further embodiment provided by the present invention, preferably, the oil discharging mechanism 7 further includes a guiding disc 8, the guiding disc 8 is fixedly connected with the top mounting rack 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 positioning disk 8, rolling disc 7.3 are located positioning disk 8 under, and rolling disc 7.3 and positioning disk 8 coaxial setting also can rotate between rolling disc 7.3 and the positioning disk 8 and be connected, and direction recess 8.1 sets up along positioning disk 8's circumference, and the shape of direction recess 8.1 can be circular, oval or other shapes.
In still another embodiment provided by the present invention, preferably, the shift lever 7.4 is rotatably connected to the rotating disc 7.3 through a rotating shaft, the shift 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, a guiding column 7.5 is fixedly disposed on the proximal end, and the guiding column 7.5 is slidably limited in the guiding groove 8.1; an upper annular side plate 7.6 is arranged on the outer side of the rotating disc 7.3 along the circumferential direction, the upper annular side plate 7.6 is connected to the guide disc 8 in a rotating mode, a guide space is formed among the rotating disc 7.3, the upper annular side plate 7.6 and the guide disc 8, a plurality of arc-shaped opening parts 7.7 are arranged on the upper annular side plate 7.6 along the circumferential direction, the deflector rods 7.4 are respectively and correspondingly arranged in the arc-shaped opening parts 7.7, and the deflector rods 7.4 can rotate in the arc-shaped opening parts 7.7, in the using process, the driving unit 7.2 drives the rotating disc 7.3 to rotate, the deflector rods 7.4 synchronously move along the rotating disc 7.3, in the moving process, the guide grooves 8.1 synchronously drive the guide columns 7.5, namely the guide columns 7.5 correspondingly drive the deflector rods 7.4 to rotate along the guide grooves 8.1, so that the deflector rods 7.4 have two motions in the using process, and for convenience of description, the deflector rods 7.4 synchronously move along the rotating disc 7.3 and drive the deflector rods to rotate around the guide grooves 8.1, therefore, in the process that the deflector rod 7.4 moves along with the rotating disc 7.3, the inclination angle of the deflector rod 7.4 can change along with the guide groove 8.1, and therefore the effect of the deflector rod 7.4 on discharging suspended matters on the surface of the air floatation oil removal area 1.5 is improved.
In still another embodiment provided by the present invention, preferably, the guiding groove 8.1 includes a semicircular portion 8.2 and an elliptical portion 8.3 connected to each other, the elliptical portion 8.3 is disposed corresponding to the oil drain port 1.6, the guiding post 7.5 has a first moving stroke moving along the semicircular portion 8.2 and a second moving stroke moving along the elliptical portion 8.3 when moving along the guiding groove 8.1, in the first moving stroke, the inclination angle is not changed, and in the second moving stroke, the inclination angle is gradually increased and then gradually decreased; when the deflector rod 7.4 synchronously revolves along with the driving of the rotating disc 7.3 by the driving unit 7.2, the guide groove 8.1 synchronously drives the deflector rod 7.4 to do autorotation motion, the deflector rod 7.4 revolves for one circle, the guide post 7.5 synchronously moves for one circle along the guide groove 8.1, the deflector rod 7.4 completes a complete autorotation motion stroke, the complete autorotation motion stroke comprises a continuous first motion stroke and a continuous second motion stroke, when the deflector rod 7.4 is gradually far away from the oil outlet 1.6 to a certain position, the guide post 7.5 of the deflector rod 7.4 moves to the semicircular part 8.2, the guide post 7.5 rotates along the semicircular part 8.2, the first motion stroke is the first motion stroke, at the moment, the deflector rod 7.4 does not do autorotation motion, the inclination angle between the deflector rod 7.4 and the rotating disc 7.3 in the radial direction is unchanged, the inclination angle is minimum at the moment, the deflector rod 7.4 has the best poking effect on suspended matters, when the deflector rod 7.4 moves to the position close to the oil outlet 1.6, at this moment, the guide post 7.5 moves to the oval portion 8.3, the guide post 7.5 moves along the oval portion 8.3 so as to enable the shift lever 7.4 to rotate, this is a second operation stroke, in this movement stroke, the shift lever 7.4 simultaneously performs revolution motion and rotation motion, the inclination angle between the radial direction of the shift lever 7.4 and the radial direction of the rotating disc 7.3 is gradually increased and then gradually decreased, when the shift lever 7.4 moves to the position corresponding to the oil discharge port 1.6 along with the rotating disc 7.3, the inclination angle between the radial direction of the shift lever 7.4 and the radial direction of the rotating disc 7.3 is maximum, so that suspended matters are conveniently discharged from the oil discharge port 1.6, and the suspended matters are effectively prevented from moving along with the shift lever 7.4.
In another embodiment provided by the invention, preferably, the oil-removing device further comprises an air blowing assembly, the air blowing assembly is arranged in the top mounting rack 7.1, an air blowing port 7.8 corresponding to the oil discharging port 1.6 is arranged on the guide disc 8, the air blowing port 7.8 is communicated with the air blowing assembly, air can be blown to the surface of the air floatation oil removing area 1.5 through the air blowing assembly and the air blowing port 7.8, suspended matters on the air floatation oil removing area 1.5 are blown to the oil discharging port 1.6, therefore, the suspended matters on the surface of the air floatation oil removing area 1.5 are stirred to the position of the air floatation oil removing area 1.5 corresponding to the oil discharging port 1.6 through the deflector rod 7.4, and the suspended matters can be blown to the oil discharging port 1.6 through the air blowing assembly.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and are not to be construed as limiting the scope of the invention.
Claims (10)
1. A coke-oven plant wastewater tar recovery device, which comprises a wastewater treatment tank and a bubble generation mechanism, the wastewater treatment tank is provided with a shunt port and an input port, the bubble generation mechanism comprises a water pump and an ejector which are arranged between the shunt port and the input port, the ejector 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, it is characterized by also comprising a turbulence component, wherein the turbulence component comprises a turbulence plate and a spiral turbulence member arranged along the water flow direction, the spoiler is arranged on the input port and is connected with the diffusion section, an input part communicated with the wastewater treatment tank is arranged on the spoiler, the bubbles sequentially pass through the aerator and the spiral flow disturbing piece in the ejector and then are conveyed into the wastewater treatment tank from the input part.
2. The coke-oven plant wastewater tar recovery device of claim 1, wherein the spoiler assembly further comprises a fixing plate transversely disposed in the diffuser section, the fixing plate is vertically provided with a plurality of the spiral spoiler members, and the fixing plate is provided with water permeable holes corresponding to the spiral spoiler members.
3. The coke-oven plant wastewater tar recovery apparatus of claim 2, wherein the input portion comprises a plurality of input holes disposed on the spoiler, the input holes being disposed in one-to-one correspondence with the spiral spoiler.
4. The coke plant wastewater tar recovery apparatus of claim 3, wherein the aperture of the inlet aperture gradually decreases in the direction of the water flow.
5. The coke-oven plant wastewater tar recovery device of claim 4, wherein an end of the spiral spoiler portion remote from the fixed plate is located within the input hole, and an annular flow gap for liquid flow is formed between the spiral spoiler and the input hole.
6. The coke-oven plant wastewater tar recovery apparatus of claim 1, further comprising a filter plate disposed across the diffuser section, wherein a plurality of said aeration heads are disposed at intervals on a side of said filter plate adjacent to said fixed plate.
7. The coke-oven plant wastewater tar recovery apparatus of claim 6, further comprising a rotary cleaning assembly, said rotary cleaning assembly including a drive member and a cleaning member rotatably connected within said diffuser section, said cleaning member being drivable by said drive member to rotate within said diffuser section to clean said filter plate.
8. The coke-oven plant wastewater tar recovery apparatus of claim 7, wherein the cleaning member includes a cleaning side attached to the filter plate and a water inlet side corresponding to the cleaning side, the cleaning side having a plurality of cleaning structures disposed thereon.
9. The coke-oven plant wastewater tar recovery device as claimed in claim 8, wherein the water inlet side is provided with a plurality of first water inlet holes and a plurality of second water inlet holes, the water inlet directions of the first water inlet holes are different from each other, the first water inlet holes are sequentially arranged along the circumferential direction of the cleaning member at intervals, and the plurality of second water inlet holes are surrounded on the outer side of the first water inlet holes.
10. The coke-oven plant wastewater tar recovery unit of claim 9, wherein the driving member includes a rotating plate rotatably connected in the diffuser section, the rotating plate having a first water passage and a second water passage, the first water passage being disposed corresponding to the first water inlet, the second water passage being disposed corresponding to the second water inlet, the rotating plate being driven to have a first operating position and a second operating position;
in the first working position, the first water channel is communicated with the first water inlet hole so that water flow passes 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.
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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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| 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 true CN114920320A (en) | 2022-08-19 |
| CN114920320B CN114920320B (en) | 2023-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
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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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| JP2012200706A (en) * | 2011-03-28 | 2012-10-22 | Sanki Eng Co Ltd | Air diffusion system and washing method of air diffusion apparatus |
| 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 |
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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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