CN114906911A - Flow self-adaptation reaction formula vortex flocculation system - Google Patents
Flow self-adaptation reaction formula vortex flocculation system Download PDFInfo
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- CN114906911A CN114906911A CN202210492573.5A CN202210492573A CN114906911A CN 114906911 A CN114906911 A CN 114906911A CN 202210492573 A CN202210492573 A CN 202210492573A CN 114906911 A CN114906911 A CN 114906911A
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- 238000005189 flocculation Methods 0.000 title claims abstract description 65
- 230000016615 flocculation Effects 0.000 title claims abstract description 65
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 102
- 239000010802 sludge Substances 0.000 claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 239000012530 fluid Substances 0.000 claims abstract description 6
- 238000006757 chemical reactions by type Methods 0.000 claims description 12
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 6
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 6
- 241001330002 Bambuseae Species 0.000 claims description 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 6
- 239000011425 bamboo Substances 0.000 claims description 6
- 230000003044 adaptive effect Effects 0.000 claims 6
- 239000002351 wastewater Substances 0.000 abstract description 28
- 238000010276 construction Methods 0.000 abstract description 26
- 238000000034 method Methods 0.000 description 16
- 238000004062 sedimentation Methods 0.000 description 16
- 238000000926 separation method Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000010865 sewage Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000008394 flocculating agent Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 238000005422 blasting Methods 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 208000005156 Dehydration Diseases 0.000 description 1
- 230000003187 abdominal effect Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000003311 flocculating effect Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011859 microparticle Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General 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)
- Treatment Of Sludge (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses an impact impeller-based vortex flocculation system, which solves the problem that the treatment of tunnel construction wastewater in the prior art is difficult to reach the standard. The vortex flocculation reaction system comprises a vortex flocculation reaction system, wherein the vortex flocculation reaction system is respectively connected with a water inlet system, a water outlet system and a sludge discharge system, the vortex flocculation reaction system comprises a vortex flocculation reaction cylinder, a central transmission shaft is arranged in the vortex flocculation reaction cylinder, the central transmission shaft is connected with the vortex flocculation cylinder through a cross-shaped fixed plate, a conical vortex generation net and a counterattack type impeller are inserted on the central transmission shaft in a plugging mode, the counterattack type impeller is connected with the conical vortex generation net through the central transmission shaft, a fusiform fluid director is arranged at the bottom of the counterattack type impeller, and the fusiform fluid director adopts a hollow structure. The two sides of the conical vortex generating net are provided with edges with conical structures. The bottom of the vortex flocculation reaction cylinder is provided with a divergent cylinder, and a water inlet is arranged on the divergent cylinder.
Description
The technical field is as follows:
the invention belongs to the technical field of water pollution treatment, and relates to a flow self-adaptive reaction type vortex flocculation system.
Background art:
along with the needs of economic development and daily traffic, the corresponding sharp rising of tunnel construction volume, tunnel engineering is located mountain region or hilly land mostly, can produce a large amount of construction waste water in its work progress, if do not handle it, directly discharges, the ecological environment in the influence construction site that will be serious.
The sources of the wastewater in the tunnel construction process are as follows: (1) and (4) waste water generated by tunneling. And the externally circulated cooling water used in the TBM tunneling process is taken from a nearby river channel and is conveyed to TBM equipment through a pipeline, and the cooling water is directly discharged after heat exchange. The discharged wastewater is mixed with stone powder and is turbid white; in the drilling and blasting construction, water used for dust fall after tunnel blasting is discharged outside and contains a large amount of suspended matters.
(2) Rock crevice water in the tunnel. The fissure water flows into the tunnel drainage ditch after passing through the chemical grouting material and the concrete on the tunnel wall, and the water body is turbid white due to the mixing of the grouting material and the concrete.
(3) The rock-through layer contacts the water gushing generated in the water-rich area. The water quantity is large, the water quality is different according to different geological conditions, and a large amount of suspended matters are involved after the tunnel is flushed. According to past construction experience, the flow of waste water discharged from a tunnel is greatly changed from several cubes per hour to hundreds of cubes per hour, and the waste water is mainly caused by the influence of many factors such as unfavorable geology, tunnel construction progress and the like.
At present, the main methods for treating tunnel construction wastewater comprise:
(1) and (4) naturally precipitating. No medicament is added, and only natural sedimentation is needed in a sedimentation tank. The sedimentation tank has larger scale, the micro-particles are not easy to be treated, but the sedimentation tank is relatively economic, such as a sand and stone material processing washing wastewater pre-sedimentation tank in the construction period.
(2) And (4) flocculating and settling. And (3) adding a flocculating agent into the sewage, and performing sedimentation separation treatment in a sedimentation tank. The sedimentation tank has larger scale and is provided with a flocculating agent adding facility, and the economic degree is only inferior to the natural sedimentation mode, such as a flocculation sedimentation tank for concrete mixing flushing wastewater in the construction period, grouting wastewater in a dam cofferdam, sandstone material processing flushing wastewater and the like.
(3) And (6) mechanical treatment. And (3) adding a flocculating agent into the sewage to enable the sludge to be coagulated and precipitated in the sedimentation tank, and performing mechanical dehydration treatment on the sludge. The method is suitable for the condition that the fine grain components of the sludge are more and the narrow field, but has higher investment and operation cost, and is suitable for mechanical complete equipment for fine sand recovery, sludge treatment, oily wastewater treatment, sewage recycling and the like in the construction period.
The most common method for treating wastewater in tunnel construction in China is to introduce the wastewater into a sedimentation tank, and allow the wastewater to stay for a certain time to be discharged after suspended matters are settled.
As the abdominal land in the tunnel excavation area is usually not large, the available area is greatly limited, and the arrangement of a large sedimentation tank is difficult, the sedimentation time of the wastewater is insufficient, and only about 50 to 70 percent of SS (suspended substances) in the wastewater can be removed, so that the tunnel construction wastewater basically exceeds the standard and is discharged. Existing investigations have shown that only about 10% of tunnel construction waste water is subjected to the above-mentioned precipitation treatment, and the remainder is not subjected to any treatment, but the construction waste water is discharged directly into the natural canal. Up to now, the treatment of tunnel construction wastewater to reach the standard is still a big problem which troubles environmental protection workers, and the treatment of tunnel construction wastewater to reach the standard is a big bottleneck due to the fact that the treatment of tunnel construction wastewater not only has trouble in the aspect of capital but also is immature in the aspect of technology.
At present, novel efficient precipitation processes such as a high-density process, a sand coagulation process, a magnetic coagulation process and the like also appear in the market, but the novel efficient precipitation processes are not widely applied to treatment of tunnel construction sewage, and due to the fact that different tunnel geological conditions, construction methods and the like are different, the quality, the quantity and the pollutant types of waste water are greatly different, and the single technology cannot meet the treatment requirements of tunnel construction waste water in different areas.
The invention content is as follows:
the invention aims to provide a flow self-adaptive reaction type vortex flocculation system based on a reaction type impeller, which solves the problem that the treatment of tunnel construction wastewater in the prior art is difficult to reach the standard. The invention skillfully uses the working principle of the reaction type impeller, can reduce mechanical parts of the device, thereby improving the overall operation reliability of the equipment, has wide flow adaptation range and simple operation, and can be applied to the treatment of wastewater in factory, field and tunnel construction.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a flow self-adaptation counterattack formula vortex flocculation system which characterized in that: including vortex flocculation reaction system, vortex flocculation reaction system respectively with water intake system, water outlet system and row mud headtotail, vortex flocculation reaction system includes vortex flocculation reaction section of thick bamboo, is provided with central transmission shaft in the vortex flocculation reaction section of thick bamboo, and central transmission shaft is connected with vortex flocculation section of thick bamboo through the cross fixed plate, and it has toper vortex to take place the net and counterattack formula impeller to peg graft in the central axis of rotation, and counterattack formula impeller takes place the net with the toper vortex and is connected through central transmission shaft.
The bottom of the counterattack type impeller is provided with a fusiform fluid director which adopts a hollow structure.
The two sides of the conical vortex generating net are provided with edges with conical structures.
The bottom of the vortex flocculation reaction cylinder is provided with a divergent cylinder, and a water inlet is arranged on the divergent cylinder.
The water outlet system comprises a triangular overflow weir, an annular water collecting tank is arranged on the outer side of the triangular overflow weir, and a water outlet pipe is arranged on the annular water collecting tank.
The sludge discharge system comprises a PVC sludge discharge pipe, and a sludge discharge electromagnetic valve is arranged on the PVC sludge discharge pipe.
A turbidity sensor is arranged in the vortex flocculation reaction cylinder.
Compared with the prior art, the invention has the following advantages and effects:
1. the invention can realize the self-adaptive treatment of the device on the flow of the construction wastewater on the tunnel construction site, the energy in the operation process of the equipment is completely provided by the water pump, and the equipment has high reliability, low energy consumption and convenient operation and maintenance.
2. The flow rate determines the rotating speed of the impact type impeller after water flow impacts the impact type impeller, the rotating speed of the grid mesh is determined, the larger the flow rate is, the larger the rotating speed of the impeller is, the more intense the dissipation in the device is, the more the number of vortexes which are beneficial to flocculation is formed, the larger the sedimentation speed of sludge is, the higher the treatment load is, and vice versa.
3. The device has the advantages of simple structure, convenient maintenance and repair, high automation degree and high equipment operation reliability.
4. The invention can realize unpowered operation under the condition that the incoming water has enough energy.
Description of the drawings:
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic diagram of the vortex flocculation reaction system of the present invention.
In the figure: 101-a water inlet, 102-a water inlet pipe, 103-a water inlet valve and 104-an electronic flowmeter; 201-a water inlet, 202-a divergent barrel, 203-a vortex flocculation reaction barrel, 204-a fusiform flow director, 205-a counterattack type impeller, 206-a central transmission shaft, 207-a conical vortex generation net and 208-a cross fixing plate; 301-triangular overflow weir, 302-annular water collecting tank, 303-water outlet pipe; 401-mud discharging pipe, 402 mud discharging electromagnetic valve.
The specific implementation mode is as follows:
in order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention relates to an energy-saving and reliable flow self-adaptive counterattack type vortex flocculation system which comprises a water inlet system, a dosing system, a vortex flocculation reaction system, a monitoring system, a sludge discharge system and a water outlet system. The water inlet system and the vortex flocculation reaction system are connected into a whole through the central shaft, and the impact force of water flow is utilized to drive the reaction type impeller and the conical vortex generation net to rotate, so that the self-adaptive adjustment of the operation working condition of the equipment under the condition of different water amounts is realized. The device achieves the purpose of self-adapting to the inflow water quantity by utilizing Newton's third law and the law of energy conservation, can effectively overcome the large-range fluctuation of the inflow water quantity, simultaneously ensures the flocculation effect and the effluent quality, can better maintain the long-term stable operation of the device, has simple operation, reliable operation and convenient maintenance, and is suitable for tunnel wastewater treatment and unpowered water plant operation in mountain and hilly areas.
The present invention is described in detail below:
referring to fig. 1 and 2, the system comprises a water inlet system, a dosing system, a vortex flocculation reaction system, a monitoring system, a sludge discharge system and a water outlet system.
In the water inlet system, after raw water enters the divergent barrel 202 through the water inlet 201, in order to avoid direct impact of the incoming water on the axis of the reaction type impeller 206, the fusiform fluid director 204 is assembled at the bottom of the reaction type impeller 205, the raw water uniformly impacts the blades of the reaction type impeller 205 in all directions after flowing through, so that the reaction type impeller 205 rotates clockwise, according to the newton's third law, after the water flow impacts the blades, the water flow receives a reaction force opposite to the rotation direction of the reaction type impeller 205, and the water flow rotates anticlockwise and rises to enter the vortex flocculation reaction barrel 203.
The central transmission shaft 206 is connected with the vortex flocculation reaction cylinder 203 through a cross fixing plate 208, a conical vortex generation net 207 and a reaction impeller 205 are inserted and connected on the central transmission shaft 206, and in order to reduce the load of the cross fixing plate 208, the shuttle-shaped flow guider 204 adopts a hollow structure. The raw water rotates anticlockwise after passing through the counterattack type impeller 205 and rises to enter the vortex flocculation reaction cylinder 203, a cross-shaped conical vortex generation net 207 is arranged in the vortex flocculation reaction cylinder 203 on a central transmission shaft 206, the central transmission shaft 206 is connected with the counterattack type impeller 205 through a key, and under the action of water flow impact, the conical vortex generation net 207 rotates along with the central transmission shaft 206.
Since the water flow rises counterclockwise in the opposite direction to the clockwise rotation of the reaction impeller 205, the conical vortex generating net 207 is also rotated in the opposite direction to the water flow, and the water flow hits the conical vortex generating net 207 in a counter-motion. The two sides of the net 207 are edges of a conical structure in the conical vortex generation process, so that water flow which reversely rotates and rises in the rotation process can flow through the frontal surface of the net 207 in the conical vortex generation process, and the water flow is subjected to reverse pressure difference force, so that the boundary layer separation is generated at the tail of the prismatic grid bars, and vortex flocculation is formed.
The arrangement of the grid bars of the conical vortex generation net 207 conforms to the principle of 'lower density and upper density and inner density' because water flow enters from the bottom and has higher energy, the dense grid bars can generate violent turbulent dissipation at the moment, the larger vortex forms tiny vortex through strong dissipation, and the strong dissipation at the initial stage of flocculation can promote complete dispersion of the medicament, the particle size is smaller at the moment, the strong dissipation brings higher particle collision times, and the flocculation is promoted. The linear velocity of bars department from interior to exterior crescent, kinetic energy also improves gradually, and outside bars can produce strong turbulent dissipation at rotatory in-process equally, and intensive bars can be rapidly with being unfavorable for the big vortex dissipation of flocculation to become the small vortex of suitable flocculation, increase the granule collision number of times, form more closely knit floc.
After the sedimentation and separation action of the inclined tube in the inclined tube flocculation reaction cylinder 203, floc lumps with high density can be formed and fall off from the bottom of the inclined tube to enter a sludge discharge pipe 401, and are compressed and precipitated under the action of hydrostatic pressure, and the floc lumps are converged into a PVC sludge discharge main pipe through a sludge discharge electromagnetic valve 402 and a PVC sludge discharge branch pipe and are discharged from a reaction system. In the operation process of the system, an obvious mud-water separation interface can be formed in the inclined tube flocculation reaction cylinder 203, and a turbidity sensor is annularly arranged at a position 50mm below the mud-water separation interface and used for detecting the turbidity of a suspended sludge layer and controlling the opening and closing of the sludge discharge electromagnetic valve 402 according to the turbidity of each point, so that the automatic sludge discharge of the device is realized.
During actual work, the water inlet pump 101 pumps raw water from the regulating reservoir, the raw water flows through the water inlet valve 103, the electronic flowmeter 104, the water inlet 201 and the gradually expanding cylinder 202, the raw water swirls and rises to enter the vortex flocculation reaction cylinder 203, the water flows out of the annular triangular overflow weir 301 to enter the annular water collecting tank 302, and finally the raw water is discharged out of the reaction system through the water outlet pipe 303. After raw water enters the divergent barrel 202 through the water inlet 201, high-pressure water flow is guided to each blade of the reaction impeller 205 through the shuttle-shaped flow guider 204, the reaction impeller 205 is pushed to rotate clockwise, and the water flow rotates anticlockwise in the opposite direction and rises into the vortex flocculation reaction barrel 203.
In vortex reaction flocculation cylinder 203, the central transmission shaft 207 that links to each other with bottom counterattack formula impeller 205 has arranged the toper vortex on and has taken place net 207, the two link to each other with the key, when counterattack formula impeller 205 receives water impact clockwise rotation, central transmission shaft 206 and toper vortex take place net 207 and can rotate with the same rotational speed clockwise, the water flow anticlockwise rotation behind counterattack formula impeller 205 at this moment on the windward side that toper vortex takes place net 207 is strikeed to vortex flocculation reaction cylinder 203, take place boundary layer at the grid afterbody and peel off, produce the vortex and promote going on of flocculation.
After the effluent water after flocculation in the vortex flocculation reaction cylinder 203 rises to a clear water area, the effluent water falls into an annular water collecting tank 302 through an annular triangular overflow weir 301, and then the effluent water is finished through an outlet pipe 303.
Example (b):
when the water source is a lake reservoir in mountain and plateau, the device can cancel the direct connection of the water inlet pump 101 with the water pipe 702, and the unpowered operation of the water plant can be realized.
When the difference between the elevation of the water source place 701 and the elevation of the location of the equipment is within the range of 35-55 m, the water source place 701 is connected to the PVC water inlet pipe 102 through the water conveying pipe 702 and the water conveying gate valve 703, raw water is directly introduced into the device, and sufficient kinetic energy is provided for the unpowered operation of the reaction type vortex flocculation device and the subsequent treatment unit; when the difference between the elevation of the water source place 701 and the elevation of the location of the equipment is larger than 55m, before the water source place 701 is connected to the PVC water inlet pipe 102 through the water conveying pipe 702 and the water conveying gate valve 703, an energy dissipation pool 704 needs to be arranged between the water conveying gate valve 703 and the PVC water inlet pipe 102, the running effect and the service life of the device are guaranteed by the surplus kinetic energy of the consumed water, and an energy dissipation pool check valve 705 is arranged between the energy dissipation pool 704 and the PVC water inlet pipe 102.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the specification and the drawings of the present invention should be included in the scope of the present invention.
Claims (7)
1. The utility model provides a flow self-adaptation counterattack formula vortex flocculation system which characterized in that: including vortex flocculation reaction system, vortex flocculation reaction system respectively with water intake system, water outlet system and row's mud headtotail, vortex flocculation reaction system includes vortex flocculation reaction section of thick bamboo (203), be provided with central transmission shaft (206) in vortex flocculation reaction section of thick bamboo (203), central transmission shaft (206) are connected with vortex flocculation section of thick bamboo (203) through cross fixed plate (209), it takes place net (207) and counterattack formula impeller (205) to peg graft conical vortex on central axis of rotation (206), counterattack formula impeller (205) take place net (207) with conical vortex and are connected through central transmission shaft (206).
2. The flow adaptive reaction type vortex flocculation system of claim 1, wherein: the bottom of the counterattack type impeller (205) is provided with a fusiform fluid director (204), and the fusiform fluid director (204) adopts a hollow structure.
3. A flow adaptive backstroke vortex flocculation system of claim 1 or 2 wherein: the two sides of the conical vortex generating net (207) are provided with edges with conical structures.
4. The flow adaptive backstroke vortex flocculation system of claim 3, wherein: the bottom of the vortex flocculation reaction cylinder (203) is provided with a divergent cylinder (202), and the water inlet (201) is arranged on the divergent cylinder (202).
5. The flow adaptive backstroke vortex flocculation system of claim 4, wherein: the water outlet system comprises a triangular overflow weir (301), an annular water collecting tank (302) is arranged on the outer side of the triangular overflow weir (301), and a water outlet pipe (303) is arranged on the annular water collecting tank (302).
6. The flow adaptive backstroke vortex flocculation system of claim 5, wherein: the sludge discharge system comprises a PVC sludge discharge pipe (401), and a sludge discharge electromagnetic valve (402) is arranged on the PVC sludge discharge pipe (401).
7. The flow adaptive backstroke vortex flocculation system of claim 6, wherein: a turbidity sensor is arranged in the vortex flocculation reaction cylinder (203).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210492573.5A CN114906911B (en) | 2022-05-07 | 2022-05-07 | Flow self-adaptive counterattack type vortex flocculation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210492573.5A CN114906911B (en) | 2022-05-07 | 2022-05-07 | Flow self-adaptive counterattack type vortex flocculation system |
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| CN114906911B CN114906911B (en) | 2024-02-27 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0655004A (en) * | 1992-08-05 | 1994-03-01 | Nippon Steel Corp | Treating device for suspension containing metal hydroxide |
| JP2002058912A (en) * | 2000-08-22 | 2002-02-26 | Nishihara Environ Sanit Res Corp | Whirling flow type flocculating/separation equipment |
| CN202379783U (en) * | 2011-12-22 | 2012-08-15 | 净化控股集团有限公司 | Reaction tank grid |
| CN204265505U (en) * | 2014-10-13 | 2015-04-15 | 池万青 | Balanced vortex mixed reactor |
| CN212982548U (en) * | 2020-05-20 | 2021-04-16 | 江西绿杉环保工程有限公司 | Environment-friendly sewage precipitation device |
-
2022
- 2022-05-07 CN CN202210492573.5A patent/CN114906911B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0655004A (en) * | 1992-08-05 | 1994-03-01 | Nippon Steel Corp | Treating device for suspension containing metal hydroxide |
| JP2002058912A (en) * | 2000-08-22 | 2002-02-26 | Nishihara Environ Sanit Res Corp | Whirling flow type flocculating/separation equipment |
| CN202379783U (en) * | 2011-12-22 | 2012-08-15 | 净化控股集团有限公司 | Reaction tank grid |
| CN204265505U (en) * | 2014-10-13 | 2015-04-15 | 池万青 | Balanced vortex mixed reactor |
| CN212982548U (en) * | 2020-05-20 | 2021-04-16 | 江西绿杉环保工程有限公司 | Environment-friendly sewage precipitation device |
Non-Patent Citations (1)
| Title |
|---|
| 王志昌等: "《输气管道工程》", vol. 1, 北京理工大学出版社 , pages: 267 - 58 * |
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