CN116282361A - Full-flow state monitoring method for jet air-float oil remover - Google Patents
Full-flow state monitoring method for jet air-float oil remover Download PDFInfo
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- CN116282361A CN116282361A CN202310469310.7A CN202310469310A CN116282361A CN 116282361 A CN116282361 A CN 116282361A CN 202310469310 A CN202310469310 A CN 202310469310A CN 116282361 A CN116282361 A CN 116282361A
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- oil
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- regulating mechanism
- monitoring
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000012544 monitoring process Methods 0.000 title claims abstract description 35
- 238000007667 floating Methods 0.000 claims abstract description 63
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 50
- 230000001105 regulatory effect Effects 0.000 claims abstract description 36
- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 230000008569 process Effects 0.000 claims abstract description 12
- 230000000630 rising effect Effects 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 claims description 23
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims description 2
- 238000005188 flotation Methods 0.000 claims 3
- 239000003921 oil Substances 0.000 description 83
- 235000019198 oils Nutrition 0.000 description 83
- 239000002351 wastewater Substances 0.000 description 9
- 235000019476 oil-water mixture Nutrition 0.000 description 4
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 3
- 235000011114 ammonium hydroxide Nutrition 0.000 description 3
- 238000004886 process control Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000126 substance Substances 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
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/0205—Separation of non-miscible liquids by gas bubbles or moving solids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/12—Auxiliary equipment particularly adapted for use with liquid-separating apparatus, e.g. control circuits
-
- 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
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Removal Of Floating Material (AREA)
Abstract
The invention discloses a full-flow state monitoring method of a jet air-float oil remover, which adopts a monitoring system and a flow regulating mechanism, wherein a water outlet pipe of the jet air-float oil remover is connected with the flow regulating mechanism, the monitoring system comprises a container communicated with a first full-flow hole of the jet air-float oil remover, a second full-flow hole is formed in the container, a floating body is placed in the container, a vertical signal trigger rod is fixed on the floating body, the signal trigger rod extends out of the container, and two inductors which are arranged up and down are arranged beside the signal trigger rod; when the sensor positioned below senses a signal trigger rod in the descending process of the floating body, the oil removing machine is in a cut-off state, and the flow regulating mechanism is controlled to reduce the water yield of the water outlet pipe; in the rising process of the floating body, when the sensor positioned above senses the signal trigger rod, the oil removing machine is in an overcurrent state, and the flow regulating mechanism is controlled to increase the water yield of the water outlet pipe. The invention solves the problems of reduced oil removal efficiency and unordered management existing in the existing jet air floatation oil removal.
Description
Technical Field
The invention relates to the technical field of water conservancy adjustment and chemical environmental protection, in particular to a full-flow state monitoring method of a jet air-float oil removal machine for treating oily wastewater.
Background
The jet air-float oil remover is an oily wastewater pretreatment device commonly used in petrochemical industry and coking industry, and the principle is that oil in wastewater is adsorbed on microbubbles formed by air sucked by a high-speed jet pump and floats up to the liquid level at the top of a groove of the oil remover, and the height of a multi-section oil collecting groove weir plate of the oil remover is adjusted to realize that light oil on the liquid level flows into an oil collecting groove in a full-flow mode along with a small amount of wastewater, oil and water separated by the oil collecting groove flows into a recovery groove automatically, and oil removing wastewater flows into the wastewater groove automatically.
In the coking industry, the jet air-float oil remover is mainly used for roughly removing oil from residual ammonia water in a condensation section. Because of the influence of operations such as waste liquid and tar extraction of the ground tank of each process of the recovery system, the flow rate of the residual ammonia water entering the jet air-float oil remover is unstable, the liquid level in the jet air-float oil remover correspondingly has intermittent fluctuation, the full flow state of the oil collecting weir plate can be interrupted or overflowed at any time, the floating oil can not be discharged or a large amount of oil removing waste water can not enter, and the residual ammonia water is high in oil content at the outlet, so that the stable operation of the next process is influenced. The excessive control of the oil-water separation flow can cause the problems of increased load, increased energy consumption and the like of each circulation device, a small amount of discharged state is required to be kept during normal operation, and the problems that the flow is too small and the flow is difficult to monitor by using a flowmeter exist. The oil-water separation condition of the jet air-float oil removal machine needs manual inspection, the process control is very passive and is behind, and the process control management cannot be implemented.
Disclosure of Invention
The invention aims to provide a full-flow state monitoring method of a jet air-floating oil remover, which can solve the problems that manual inspection is required in the oil-water separation condition of the existing jet air-floating oil removal, and the oil removal efficiency is reduced and unordered management is realized.
In order to solve the problems, the invention adopts the following technical scheme: the full-flow state monitoring method of the jet air-float oil remover adopts a monitoring system and a flow regulating mechanism, wherein a water outlet pipe of the jet air-float oil remover is connected with the flow regulating mechanism, the monitoring system comprises a container communicated with a first full-flow hole of the jet air-float oil remover, a second full-flow hole is formed in the container, a floating body is placed in the container, a signal trigger rod is fixedly and vertically arranged on the floating body, the upper end of the signal trigger rod extends out of the container, and two inductors which are vertically arranged are arranged beside the signal trigger rod;
when the jet air floating oil removing machine is in a normal working state of full flow, the flow regulating mechanism is in a static state; when the sensor positioned below senses the trigger point of the signal trigger rod in the descending process of the floating body, at the moment, the jet air-float oil remover is in a cut-off state, and the flow regulating mechanism is controlled to reduce the water yield of the water outlet pipe; in the rising process of the floating body, when the sensor above senses the trigger point of the signal trigger rod, the jet air-float oil remover is in an overcurrent state, and the flow regulating mechanism is controlled to increase the water yield of the water outlet pipe.
In the technical scheme of the full-flow state monitoring method of the jet air-floating oil removal machine, the more specific technical scheme can be as follows: the sensor is electrically connected with the controller; the controller is electrically connected with the flow regulating mechanism and is used for controlling the flow regulating mechanism.
Further, the controller is a PLC controller, and the PLC controller is connected with a remote terminal through a DCS system.
Further, the container is a guide sleeve pipe in sliding fit with the floating body, the guide sleeve pipe is fixed in the water tank, and the guide sleeve pipe is communicated with the water tank through the second full flow hole; the water tank is provided with a floating oil outlet, and the position of the second full flow hole is higher than the floating oil outlet.
Further, the liquid inlet hole of the guide sleeve is lower than the second full flow hole.
Further, the flow regulating mechanism comprises a flashboard and a flashboard groove which are arranged in the jet air-float oil remover, the flashboard groove is connected with the water outlet pipe, a power machine which drives the flashboard to open and close is arranged outside the jet air-float oil remover, and the power machine is electrically connected with the controller.
Further, the power machine is a motor, the flashboard is connected with a valve rod, the upper end of the valve rod extends out of the jet air floatation oil removing machine, a driven wheel is fixed at the extending end of the valve rod, and the driven wheel is in transmission connection with a driving wheel arranged on an output shaft of the motor.
Further, a limiting block is arranged at the upper end of the flashboard, and a limiting structure propped against the limiting block is arranged on the valve rod.
Further, the controller is electrically connected with an alarm.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following beneficial effects:
1. the device is characterized in that a container with a floating ball with a signal trigger rod is arranged inside, an inductor is arranged beside the signal trigger rod, floating oil is introduced into the container through an overflow hole of the jet air floatation oil remover, the floating ball floats upwards or downwards in the container, the flow rate of a water outlet pipe of the oil remover is controlled and regulated according to the position state of the signal trigger rod sensed by the inductor, the liquid level in the oil remover is regulated, the working state that the oil remover overflows the upper layer of floating oil in a full flow manner is ensured, the situation that a field person cannot timely find and process the cutoff or overcurrent state of the oil remover is avoided, the oil removing efficiency of the jet air floatation oil remover is improved, and the technical process control management can be orderly implemented.
2. The controller is connected with the flow regulating mechanism or/and the alarm, the controller adopts a PLC controller, the PLC controller is connected with a remote terminal through a DCS system, and a monitoring person remotely sends out a control signal or a field person manually operates to regulate the flow regulating mechanism or/and the alarm; the anti-interference performance is strong, the monitoring under full-flow and non-full-flow states is met, and the device is ensured to be used in a complex working condition environment.
3. The container is designed as a guide sleeve in sliding fit with the floating body, so that the signal trigger rod can be kept vertically lifted, and the sensing accuracy is improved; the guide sleeve is arranged in the water tank, the water tank with the floating oil liquid outlet lower than the second full flow hole can ensure that the floating oil can stably flow out to the next procedure, and the fluctuation of the floating oil outflow is reduced.
4. The liquid inlet hole of the guide sleeve is lower than the second full flow hole, so that the floating body can be in a hovering state, and the sensitivity of signal triggering is ensured.
5. The flow regulating mechanism adopts the flashboard and flashboard groove controlled by the motor drive, and has the advantages of simple operation, firm and durable structure, small flow resistance, high precision and low cost.
6. The limiting block is arranged on the flashboard, the rotation number of the valve rod can be controlled, and the limit position of the up-and-down movement of the flashboard is controlled.
Drawings
Fig. 1 is a schematic structural diagram of a device used in the method for monitoring the full flow state of the jet air-float oil remover.
Reference numerals illustrate: 10. jet air-float oil removing machine; 11. a waste pipe; 12. a first full flow aperture; 20. a flow rate adjusting mechanism; 21. a flashboard groove; 22. a flashboard; 23. a limiting block; 24. valve rod, 25, driven wheel; 26. a chain; 27. a driving wheel; 28. a motor; 29. a water outlet pipe; 30. a monitoring system; 31. a water tank; 31-1, a floating oil outlet; 32-1, a liquid inlet hole; 32-2, a second full aperture; 32. a guide sleeve; 33. a floating ball; 34. a signal trigger lever; 35. an inductor; 36. and a controller.
Detailed Description
The invention is further described in detail below with reference to the examples of the drawings:
the device used in the method for monitoring the full flow state of the jet air-floating oil removal machine shown in fig. 1 mainly comprises a monitoring system 30 and a flow regulating mechanism 20, wherein the monitoring system 30 is used for monitoring the full flow state of the upper layer floating oil of the jet air-floating oil removal machine 10, and the flow regulating mechanism 20 is connected with the jet air-floating oil removal machine 10 and is used for regulating the water yield of the jet air-floating oil removal machine 10. The monitoring system 20 comprises a container communicated with the first full flow hole 12 of the jet air floating oil remover 10, a floating body is placed in the container, the floating body in the embodiment is a floating ball 33, the container is a guide sleeve pipe 32 in sliding fit with the floating ball 33, a liquid circulation gap is reserved between the floating ball 33 and the guide sleeve pipe 32, the floating ball 33 is fixedly provided with a vertically arranged signal trigger rod 34, the upper end of the signal trigger rod 34 extends out of the guide sleeve pipe 32, and two inductors 35 which are arranged up and down are arranged beside the signal trigger rod 34. The guide sleeve 32 is provided with a liquid inlet hole 32-1 and a second full flow hole 32-2, the liquid inlet hole 32-1 is connected with the first full flow hole 12 of the jet air floating oil remover 10 through a pipeline, the height position of the liquid inlet hole 32-1 is lower than that of the second full flow hole 32-2, the height of an opening of the second full flow hole 32-2 is matched with the weights of the floating ball 33 and the signal trigger rod 34, and the floating ball 33 is ensured to be in a hovering state. The sensor 35 is electrically connected with the controller 36, and the sensor 35 is used for feeding back a signal to the controller 36 to trigger the position of the rod 34 so that the controller 36 takes corresponding control; the controller 36 is electrically connected to the flow rate adjustment mechanism 20, and controls the flow rate adjustment mechanism 20. The controller 36 is a PLC controller, which may also be connected to a remote terminal through a DCS system to realize remote monitoring. The controller 36 is also connected with an alarm, and when the monitoring system detects that the oil removal machine is not in a full-flow state signal, an alarm prompt is given to an operator, and the operator can start the flow regulating mechanism 20 to control the flow of the water outlet pipe 29, so that the liquid level in the jet air-float oil removal machine 10 is regulated. In other embodiments, the controller 26 may employ a microprocessor.
The flow regulating mechanism 20 comprises a flashboard 22 and a flashboard groove 21 which are arranged in the jet air-float oil remover 10, the flashboard groove 21 is connected with a water outlet pipe 29 arranged on the middle upper wall body of the jet air-float oil remover 10, and a power machine for driving the flashboard 22 to open and close is arranged outside the jet air-float oil remover 10 and is electrically connected with the controller 26. The power machine of this embodiment is motor 28, and flashboard 22 is connected with valve rod 24, and valve rod 24 and flashboard 22 pass through threaded connection, drive flashboard 22 reciprocates, and valve rod 24 upper end stretches out the efflux air supporting except for oil machine 10, and valve rod 24's stretching out the end is fixed with from driving wheel 25, from driving wheel 25 and action wheel 27 pass through chain 26 transmission connection, and action wheel 27 passes through the speed reducer and is connected with motor 28 output shaft. The upper end of the flashboard 22 is provided with a limiting block 23, and a valve rod 24 is provided with a limiting structure which is propped against the limiting block 23.
In order to enable the upper layer floating oil of the jet air-floating oil removal machine 10 to stably flow to the subsequent process, a guide sleeve pipe 32 is arranged in a water tank 31, the bottom end of the guide sleeve pipe 32 is fixedly connected to the bottom of the water tank 31, the upper end of the guide sleeve pipe 32 extends out of the water tank 31, and the guide sleeve pipe 32 is communicated with the water tank 31 through a second full flow hole 32-2; the water tank 31 is provided with a floating oil outlet 31-1, and the position of the second full flow hole 32-2 is higher than that of the floating oil outlet 31-1. A drain is provided at the bottom of the water tank 31 to facilitate periodic cleaning of the water tank 31.
In operation, upper layer oil slick in the jet air-float oil remover 10 is introduced into the guide sleeve 32 from the first full flow hole 12, the upper layer oil slick is a separated oil-water mixture, and meanwhile, wastewater is discharged from the wastewater pipe 11 at the lower part; when the page in the guide sleeve 32 rises to the height of the second full flow hole 32-2, the floating oil flows into the water tank 31 from the guide sleeve 32, and the floating oil in the water tank 31 flows out from the floating oil outlet 31-1. When the jet air-float oil remover 10 is in the normal working state of full flow, the flow regulating mechanism 20 is in a static state, and the flow of the water outlet pipe 29 does not need to be regulated. In the process that the flow of the liquid medium is unstable, the jet air-float oil remover 10 can cause the flow interruption or overflow of the separated oil-water mixture, and the floating ball 33 drops along with the liquid level of the separated oil-water mixture in the guide sleeve pipe 32, when the sensor 35 positioned below senses the trigger point of the signal trigger rod 34, at this time, the jet air-float oil remover 10 is in an interruption state, the sensor 35 positioned below sends an interruption signal to the controller 26, the controller 36 sends a control signal to control the motor 28 to start after receiving the interruption signal, the motor shaft rotates, the speed reducer decelerates and drives the driving wheel 27 to rotate, the driving wheel 27 drives the chain 26 to drive the driven wheel 25 to rotate, the driven wheel 25 drives the valve rod 24 to rotate, the valve rod 24 drives the flashboard 22 to drop, and the flow regulating mechanism 20 reduces the water yield of the water outlet pipe 29 to improve the liquid level, and ensure that the jet air-float oil remover 10 is full; in the process that the floating ball 33 rises along with the liquid level of the separated oil-water mixture in the guide sleeve pipe 32, when the sensor 35 positioned above senses the trigger point of the signal trigger rod 34, at this time, the jet air-float oil remover 10 is in an overcurrent state, the sensor 35 positioned above sends an overcurrent signal to the controller 36, and the controller 36 sends a control signal to control the flow regulating mechanism 20 to increase the water yield of the water outlet pipe 29 after receiving the overcurrent signal so as to reduce the liquid level and avoid long-time overcurrent.
The full-flow state monitoring method of the jet air-float oil remover can automatically monitor the liquid level state in the jet air-float oil remover 10 through the monitoring system 30, and remotely control or manually operate the flow regulating mechanism 20 on site to regulate the liquid level through the monitored flow-cutting or flow-passing signals, so that long-time flow-cutting or flow-passing is avoided, and the reduction of the oil removal efficiency and unordered management of the jet air-float oil remover 10 are avoided. The method can be used in the occasion with liquid level adjustment due to unstable medium flow.
Claims (9)
1. A full-flow state monitoring method of a jet air-float oil remover is characterized by comprising the following steps of: the method comprises the steps that a monitoring system and a flow regulating mechanism are adopted, a water outlet pipe of a jet air-float oil remover is connected with the flow regulating mechanism, the monitoring system comprises a container communicated with a first full flow hole of the jet air-float oil remover, a second full flow hole is formed in the container, a floating body is placed in the container, a signal trigger rod is fixedly arranged vertically, the upper end of the signal trigger rod extends out of the container, and two inductors which are arranged vertically are arranged beside the signal trigger rod;
when the jet air floating oil removing machine is in a normal working state of full flow, the flow regulating mechanism is in a static state; when the sensor positioned below senses the trigger point of the signal trigger rod in the descending process of the floating body, at the moment, the jet air-float oil remover is in a cut-off state, and the flow regulating mechanism is controlled to reduce the water yield of the water outlet pipe; in the rising process of the floating body, when the sensor above senses the trigger point of the signal trigger rod, the jet air-float oil remover is in an overcurrent state, and the flow regulating mechanism is controlled to increase the water yield of the water outlet pipe.
2. The method for monitoring the full flow state of the jet air-floating oil removal machine according to claim 1, wherein the method comprises the following steps of: the sensor is electrically connected with the controller; the controller is electrically connected with the flow regulating mechanism and is used for controlling the flow regulating mechanism.
3. The method for monitoring the full flow state of the jet air-floating oil removal machine according to claim 2, wherein the method comprises the following steps of: the controller is a PLC controller, and the PLC controller is connected with a remote terminal through a DCS system.
4. The method for monitoring the full flow state of the jet air flotation oil removal machine according to claim 3, wherein the method comprises the following steps of: the container is a guide sleeve in sliding fit with the floating body, the guide sleeve is fixed in the water tank, and the guide sleeve is communicated with the water tank through the second full flow hole; the water tank is provided with a floating oil outlet, and the position of the second full flow hole is higher than the floating oil outlet.
5. The method for monitoring the full flow state of the jet air flotation oil removal machine according to claim 4, wherein the method comprises the following steps of: the liquid inlet hole of the guide sleeve is lower than the second full flow hole.
6. The method for monitoring the full flow state of the jet air-floating oil removal machine according to claim 5, wherein the method comprises the following steps of: the flow regulating mechanism comprises a flashboard and a flashboard groove which are arranged in the jet air floatation oil removal machine, the flashboard groove is connected with the water outlet pipe, a power machine which drives the flashboard to open and close is arranged outside the jet air floatation oil removal machine, and the power machine is electrically connected with the controller.
7. The method for monitoring the full flow state of the jet air-floating oil removal machine according to claim 6, wherein the method comprises the following steps: the power machine is a motor, the flashboard is connected with a valve rod, the upper end of the valve rod extends out of the jet air floatation oil removing machine, a driven wheel is fixed at the extending end of the valve rod, and the driven wheel is in transmission connection with a driving wheel arranged on an output shaft of the motor.
8. The method for monitoring the full flow state of the jet air flotation oil removal machine according to claim 7, wherein the method comprises the following steps of: the upper end of the flashboard is provided with a limiting block, and the valve rod is provided with a limiting structure which is propped against the limiting block.
9. The method for monitoring the full flow state of the jet air floating oil removal machine according to any one of claims 2 to 8, wherein the method comprises the following steps: the controller is electrically connected with an alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310469310.7A CN116282361A (en) | 2023-04-27 | 2023-04-27 | Full-flow state monitoring method for jet air-float oil remover |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310469310.7A CN116282361A (en) | 2023-04-27 | 2023-04-27 | Full-flow state monitoring method for jet air-float oil remover |
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| CN101509065A (en) * | 2009-03-17 | 2009-08-19 | 柳州钢铁股份有限公司 | Method for long-range transmission and spray of sewage sludge of revolving furnace and system thereof |
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| CN202072505U (en) * | 2011-04-15 | 2011-12-14 | 大庆鑫禹科技有限公司 | Micro-nano gas floating separating device |
| CN202988789U (en) * | 2012-12-18 | 2013-06-12 | 攀钢集团西昌钢钒有限公司 | Level control device of air-floated oil remover |
| CN104478114A (en) * | 2014-11-28 | 2015-04-01 | 中冶焦耐工程技术有限公司 | Rotational flow air flotation separation device of tar ammonia water |
| JP2017170406A (en) * | 2016-03-25 | 2017-09-28 | 栗田工業株式会社 | Ultrapure water production system |
-
2023
- 2023-04-27 CN CN202310469310.7A patent/CN116282361A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101509065A (en) * | 2009-03-17 | 2009-08-19 | 柳州钢铁股份有限公司 | Method for long-range transmission and spray of sewage sludge of revolving furnace and system thereof |
| CN102218275A (en) * | 2011-04-15 | 2011-10-19 | 大庆鑫禹科技有限公司 | Micro nano bubble generator |
| CN202072505U (en) * | 2011-04-15 | 2011-12-14 | 大庆鑫禹科技有限公司 | Micro-nano gas floating separating device |
| CN202988789U (en) * | 2012-12-18 | 2013-06-12 | 攀钢集团西昌钢钒有限公司 | Level control device of air-floated oil remover |
| CN104478114A (en) * | 2014-11-28 | 2015-04-01 | 中冶焦耐工程技术有限公司 | Rotational flow air flotation separation device of tar ammonia water |
| JP2017170406A (en) * | 2016-03-25 | 2017-09-28 | 栗田工業株式会社 | Ultrapure water production system |
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