CN114084981A - Simple and efficient integrated coagulating and clarifying tank and working method - Google Patents
Simple and efficient integrated coagulating and clarifying tank and working method Download PDFInfo
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- CN114084981A CN114084981A CN202111420750.0A CN202111420750A CN114084981A CN 114084981 A CN114084981 A CN 114084981A CN 202111420750 A CN202111420750 A CN 202111420750A CN 114084981 A CN114084981 A CN 114084981A
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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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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
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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
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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Abstract
本发明涉及一种简单高效的一体化混凝澄清池及工作方法。现有机械搅拌澄清池具有结构复杂、运维工作量大、投资较高等缺点。本发明组成包括：澄清池，澄清池内部安装有澄清池隔墙（7），并将澄清池分为内外两个区域，内部区域为絮凝区（18），外部区域为分离区（19），澄清池顶部安装有进水管（5），进水管右侧安装有管道混合器（9），管道混合器与电动调节阀（11）之间安装有絮凝剂加药装置（10），絮凝区内由上到下依次安装有一级搅拌器A（8）和一组二级搅拌器B（13），澄清池下方安装有刮泥机（16），刮泥机桥臂的顶端分别安装有一组搅拌器C（17），刮泥机中间位置垂直安装传动轴（16）。本发明用于简单高效的一体化混凝澄清池。
The invention relates to a simple and efficient integrated coagulation clarifier and a working method. The existing mechanical stirring clarifier has the disadvantages of complex structure, large operation and maintenance workload, and high investment. The composition of the invention includes: a clarifier, a clarifier partition wall (7) is installed inside the clarifier, and the clarifier is divided into two areas, the inner area is a flocculation area (18), and the outer area is a separation area (19), A water inlet pipe (5) is installed on the top of the clarifier, a pipeline mixer (9) is installed on the right side of the water inlet pipe, and a flocculant dosing device (10) is installed between the pipeline mixer and the electric regulating valve (11). A first-stage agitator A (8) and a group of two-stage agitators B (13) are installed in sequence from top to bottom, a mud scraper (16) is installed under the clarifier, and a group of agitators is installed on the top of the bridge arm of the mud scraper. C (17), the transmission shaft (16) is installed vertically in the middle of the mud scraper. The invention is used for a simple and efficient integrated coagulation-clarifier.
Description
Technical Field
The invention relates to the technical field of water, wastewater, sewage or sludge treatment, in particular to a simple and efficient integrated coagulating and clarifying tank and a working method.
Background
The clarification tank is a solid-liquid separation device which is widely applied in the field of water treatment, the clarification tank can be divided into a sludge separation type and a sludge filtration type according to the working principle, the sludge separation type clarification tank comprises a mechanical stirring clarification tank and a hydraulic circulating clarification tank, the sludge filtration type clarification tank comprises a suspension clarification tank and a pulse clarification tank, sludge in the sludge separation type clarification tank makes the sludge circularly flow in the clarification tank under the action of hydraulic power or machinery, fine impurities in raw water are contacted with the sludge, are adsorbed and flocculated, then are subjected to solid-liquid separation through sedimentation to obtain recovered clear water and concentrated sludge, the sludge filtration type clarification tank makes the sludge suspend in the clarification tank under the action of hydraulic power, when raw water passes through the sludge layer from bottom to top, impurities in the raw water can contact with high-concentration sludge, flocculate and are finally intercepted, and a clear water layer is formed above the sludge layer;
among the separation-type clarification tanks, the mechanical stirring clarification tank is most widely used, and has the characteristics of large treatment capacity, good separation effect, strong adaptability and the like, but the separation-type clarification tank has the characteristics of complex structure, large operation and maintenance workload and high investment, and the filtration-type clarification tank is suitable for treating the water quality of fine suspended matters, but sometimes sludge can be flushed to a clear water area by water flow, the requirement on coagulation is high, and the stability is inferior to that of the separation-type clarification tank.
The mechanical stirring clarification tank in the prior art mainly comprises an annular water distribution tank, a first flocculation chamber, a second flocculation chamber, a separation chamber, a stirring impeller and a water collecting tank, and the operation principle is as follows: raw water firstly enters an annular triangular water distribution tank, the raw water uniformly flows into a first flocculation chamber along a gap between the triangular water distribution tank and a conical cylinder, a flocculating agent can be added into the water distribution tank or the first flocculation chamber, the raw water is fully flocculated in the first flocculation chamber under the action of stirring equipment, formed flocculating constituents enter a second flocculation chamber under the lifting action of a stirring impeller to form larger flocculating constituents, then the flocculating constituents enter a separation chamber for solid-liquid separation, separated clear water overflows to enter an upper water collecting tank and is collected and then discharged, one part of settled sludge enters the first flocculation chamber through a backflow gap of a tank wall and is adsorbed and flocculated again, the other part of settled sludge is collected and discharged through a sludge hopper, and the mechanical stirring tank has the defects of complex structure, high investment and the like.
Disclosure of Invention
The invention aims to provide a simple and efficient integrated coagulating and clarifying tank and a working method thereof, wherein the structure and the method have the advantages of simple structure, full flocculation, large treatment capacity, small investment and the like, and simultaneously the water inflow can be adjusted according to the water quality condition so as to achieve better clarification effect.
The above purpose is realized by the following technical scheme:
a simple and efficient integrated coagulating and clarifying tank comprises the following components: clarification tank, clarification tank internally mounted have the clarification tank partition wall, and will clarification tank divide into two inside and outside regions, the interior region is the flocculation district, the outside region is the disengagement zone, clarification tank top install the inlet tube, the inlet tube right side install the pipe-line mixer, pipe-line mixer and electrical control valve between install flocculating agent charge device, the flocculation district in by last one-level agitator A and a set of second grade agitator B of installing in proper order under to, clarification tank below install the mud scraper, the top of mud scraper bridge arm install a set of agitator C respectively, the perpendicular installation transmission shaft of mud scraper intermediate position, transmission shaft and the motor that overhauls the mud scraper on the platform be connected.
Simple efficient integration coagulating sedimentation tank, clarification tank bottom install the mud discharging mouth, the pipe chute device is installed disengagement zone upper portion, the lower part of the surface of water, overflow mouth and annular water catch bowl are installed clarification tank upper portion, clarification tank top installation the maintenance platform, clarification tank partition wall upper portion be the cylinder shape, its lower part is the horn mouth shape, the exit diameter of clarification tank partition wall be 1.5-2 times of entry diameter.
The simple and high-efficiency integrated coagulating and clarifying tank is characterized in that the primary stirrer A is arranged at the upper part of the flocculation area and is 1.5-2m away from the maintenance platform, the rotating coverage area of a single impeller is 90-95% of the sectional area of the partition wall, the number of the secondary stirrers B is 4, the secondary stirrers B are arranged at four corners of the lower part of the flocculation area and are 1-1.5m away from the lower surface of the partition wall of the clarification tank, the rotating coverage area of an impeller is 10-15% of the area of the partition wall, the third-stage stirrer B is arranged at the top end of the bridge arm of the mud scraper and has the same parameters as the second-stage stirrer B, the inclined tube device is arranged at the middle upper part of the separation area and is 1.5-2m away from the maintenance platform, if the quality of inlet water is better or the water inlet amount is smaller, the inclined pipe device is not arranged on the premise that the quality of outlet water reaches the standard.
A simple and efficient integrated coagulating and clarifying tank and a working method thereof are disclosed, the method comprises the following steps: firstly, sewage enters a clarification tank from a water inlet pipe, the water inflow can be adjusted by an electric adjusting valve, a flocculating agent dosing device is arranged on the water inlet pipe, the dosed sewage enters the clarification tank after being preliminarily coagulated in a pipeline mixer, and the length of the pipeline mixer can be obtained by calculation according to the water quality of inlet water and the water inlet pressure;
in the flocculation zone, sewage slowly moves downwards under the action of gravity and a stirrer, a first-stage stirrer A and a second-stage stirrer B are arranged in the flocculation zone, the impeller of the first-stage stirrer A is large in size and fully coagulates the sewage and a flocculating agent, the second-stage stirrer B is small in size and distributed at four corners, the sewage which is not fully coagulated at the periphery is stirred and coagulated again, the lower part of the flocculation zone is designed into a bell mouth shape, the water flow speed entering a separation zone is reduced, and floccules are precipitated to the bottom of a clarification tank as soon as possible;
the sewage enters a separation area after primary coagulation and two-stage stirring, the cross-sectional area of the separation area is 3-6 times of that of a flocculation area, so that the water flow speed is slower in the separation area, sedimentation of finer floccules is facilitated, a mud scraper collects and conveys the settled flocculent sludge to the bottom of a pool, the rotating speed of the mud scraper is 15-20min/r, 2 three-stage stirrers C are arranged on a bridge arm of the mud scraper and rotate along with the mud scraper, partial upper lifting force is provided for the water flow, and a certain stirring effect can also be achieved;
the upper part of the separation area is provided with an inclined pipe device to improve the sedimentation efficiency and the sewage treatment capacity, and clear water after coagulation and clarification is collected on the upper liquid level and finally collected in an annular water collecting tank and discharged through an overflow port.
Has the advantages that:
1. the invention is a simple and high-efficient integrated coagulating sedimentation tank and its working method, the structure and method utilize the dead weight of suspended matter to precipitate the principle to realize the solid-liquid separation of the sewage, after sewage adds flocculating agent and fully stirs, the tiny suspended matter polymerizes into the bigger floccule, precipitate to the bottom of the pool under the influence of gravity, discharge by the mud pipe, the supernatant fluid is discharged by the overflow port, can add the inclined tube apparatus in the solid-liquid separation area of the sedimentation tank, further accelerate the precipitation, has improved quality of water and water yield effectively, have simple in construction, flocculate fully, the handling capacity is large, advantage such as being smaller of investment.
2. The high-efficiency integrated clarification tank provided by the invention integrates dosing, coagulation, separation and clarification, has the characteristics of compact structure, good coagulation effect and the like compared with the traditional suspension clarification tank or pulse clarification tank, does not need a separate dosing coagulation chamber, and saves space.
3. The clarification tank provided by the invention has simple structure and low operation and maintenance amount, and the total cost can be reduced by 30% under the condition that the sewage treatment amount and the effluent quality are the same as those of the mechanical stirring clarification tank.
4. The clarification tank can adjust the water inflow according to the water quality of the inlet water, and can effectively achieve the aim of controlling the water quality of the outlet water.
5. The inclined pipe device is a selecting and matching device, and whether the inclined pipe is matched or not can be selected according to the quality and the quantity of inlet water, so that the overall cost is further optimized.
Description of the drawings:
FIG. 1 is a schematic structural diagram of the present invention.
Wherein: 1. overflow mouth, 2, maintenance platform, 3, cyclic annular water catch bowl, 4, the surface of water, 5, inlet tube, 6, mud scraper's motor, 7, depositing reservoir partition wall, 8, agitator A, 9, pipeline mixer, 10, flocculating agent charge device, 11, electrical control valve, 12, depositing reservoir, 13, agitator B, 14, row's mud mouth, 15, transmission shaft, 16, mud scraper, 17, agitator C, 18, flocculation district, 19, disengagement zone, 20, pipe chute device.
The specific implementation mode is as follows:
example 1:
a simple and efficient integrated coagulating and clarifying tank comprises the following components: clarification tank 12, clarification tank internally mounted have clarification tank partition wall 7, and will clarification tank divide into two inside and outside regions, the interior region is flocculation district 18, the exterior region is separation zone 19, clarification tank top install inlet tube 5, the inlet tube right side install pipe mixer 9, pipe mixer and electrical control valve 11 between install flocculating agent charge device 10, the flocculation district in by last one-level agitator A8 and a set of second grade agitator B13 of installing in proper order under to, clarification tank below install mud scraper 16, the top of mud scraper bridge arm install a set of agitator C17 respectively, mud scraper intermediate position install transmission shaft 15 perpendicularly, the transmission shaft be connected with motor 6 of the mud scraper on the maintenance platform 2.
Example 2:
according to embodiment 1 simple high efficiency's integration coagulating sedimentation tank, the clarification tank bottom install row mud mouth 14, the pipe chute device 20 is installed separation zone upper portion, the lower part of surface of water 4, overflow mouth 1 and annular water catch bowl 3 install clarification tank upper portion, the clarification tank top install the maintenance platform, clarification tank partition wall upper portion be the cylinder shape, its lower part is the bell mouth shape, the export diameter of clarification tank partition wall be 1.5-2 times of entry diameter.
Example 3:
according to the simple and high-efficiency integrated coagulating and clarifying tank of the embodiment 1, the primary stirrer A is arranged at the upper part of the flocculation area and is 1.5-2m away from the maintenance platform, the rotating coverage area of a single impeller is 90-95% of the sectional area of the partition wall, the number of the secondary stirrers B is 4, the secondary stirrers B are arranged at four corners of the lower part of the flocculation area and are 1-1.5m away from the lower surface of the partition wall of the clarification tank, the rotating coverage area of an impeller is 10-15% of the area of the partition wall, the third-stage stirrer B is arranged at the top end of the bridge arm of the mud scraper and has the same parameters as the second-stage stirrer B, the inclined tube device is arranged at the middle upper part of the separation area and is 1.5-2m away from the maintenance platform, if the quality of inlet water is better or the water inlet amount is smaller, the inclined pipe device is not arranged on the premise that the quality of outlet water reaches the standard. A
Example 4:
a method of operating a simple and efficient integrated coagulative clarifier according to embodiments 1-3, the method comprising the steps of:
firstly, sewage enters a clarification tank from a water inlet pipe, the water inflow can be adjusted by an electric adjusting valve, a flocculating agent dosing device is arranged on the water inlet pipe, the dosed sewage enters the clarification tank after being preliminarily coagulated in a pipeline mixer, and the length of the pipeline mixer can be obtained by calculation according to the water quality of inlet water and the water inlet pressure;
in the flocculation zone, sewage slowly moves downwards under the action of gravity and a stirrer, a first-stage stirrer A and a second-stage stirrer B are arranged in the flocculation zone, the impeller of the first-stage stirrer A is large in size and fully coagulates the sewage and a flocculating agent, the second-stage stirrer B is small in size and distributed at four corners, the sewage which is not fully coagulated at the periphery is stirred and coagulated again, the lower part of the flocculation zone is designed into a bell mouth shape, the water flow speed entering a separation zone is reduced, and floccules are precipitated to the bottom of a clarification tank as soon as possible;
the sewage enters a separation area after primary coagulation and secondary stirring, the cross-sectional area of the separation area is 3-6 times of that of a flocculation area, so that the water flow speed is slower in the separation area, sedimentation of finer floccules is facilitated, a mud scraper collects and conveys the settled flocculent sludge to the bottom of a pool, the rotating speed of the mud scraper is 15-20min/r, 2 three-stage stirrers C are arranged on a bridge arm of the mud scraper and rotate along with the mud scraper, partial upper lifting force is provided for the water flow, and a certain stirring effect can also be achieved;
the upper part of the separation area is provided with an inclined pipe device to improve the sedimentation efficiency and the sewage treatment capacity, and clear water after coagulation and clarification is collected on the upper liquid level and finally collected in an annular water collecting tank and discharged through an overflow port.
Claims (4)
1. A simple and efficient integrated coagulating and clarifying tank comprises the following components: the clarification tank is characterized in that: clarification tank internally mounted have the clarification tank partition wall, and will clarification tank divide into inside and outside two regions, the interior region is the flocculation district, the exterior region is the disengagement zone, clarification tank top install the inlet tube, the inlet tube right side install the pipe-line mixer, pipe-line mixer and electrical control valve between install flocculating agent charge device, the flocculation district in by last one-level agitator A and a set of second grade agitator B of installing in proper order under to, clarification tank below install and scrape the mud machine, the top of scraping the mud machine bridge arm install a set of agitator C respectively, the perpendicular transmission shaft of installing of mud machine intermediate position, transmission shaft and maintenance platform on the motor of scraping the mud machine be connected.
2. The simple and efficient integrated coagulation-clarification tank according to claim 1, characterized in that: the clarification tank bottom install the mud discharge mouth, the pipe chute device is installed disengagement zone upper portion, the lower part of the surface of water, overflow mouth and annular water catch bowl are installed clarification tank upper portion, clarification tank top install the maintenance platform, clarification tank partition wall upper portion be the cylinder shape, its lower part is the horn mouth shape, the export diameter of clarification tank partition wall be 1.5-2 times of entry diameter.
3. The simple and high-efficiency integrated coagulation-clarification tank according to claim 2, characterized in that: the primary stirrer A is arranged on the upper portion of the flocculation area and is 1.5-2m away from the maintenance platform, the rotating coverage area of a single impeller is 90-95% of the sectional area of the partition wall, the number of the secondary stirrers B is 4, the secondary stirrers B are arranged at four corners of the lower portion of the flocculation area and are 1-1.5m away from the lower surface of the partition wall of the clarification tank, the rotating coverage area of the impeller is 10-15% of the area of the partition wall, the tertiary stirrers B are arranged at the top end of the bridge arm of the mud scraper, parameters are the same as those of the secondary stirrers B, the inclined pipe device is arranged at the middle upper portion of the separation area and is 1.5-2m away from the maintenance platform, and if the water inlet quality is better or the water inlet amount is smaller, the inclined pipe device can not be arranged on the premise that the water outlet quality reaches the standard.
4. A method for operating a simple and efficient integrated coagulation-clarification tank as claimed in any one of claims 1 to 3, characterized in that: the method comprises the following steps:
firstly, sewage enters a clarification tank from a water inlet pipe, the water inflow can be adjusted by an electric adjusting valve, a flocculating agent dosing device is arranged on the water inlet pipe, the dosed sewage enters the clarification tank after being preliminarily coagulated in a pipeline mixer, and the length of the pipeline mixer can be obtained by calculation according to the water quality of inlet water and the water inlet pressure;
in the flocculation zone, sewage slowly moves downwards under the action of gravity and a stirrer, a first-stage stirrer A and a second-stage stirrer B are arranged in the flocculation zone, the impeller of the first-stage stirrer A is large in size and fully coagulates the sewage and a flocculating agent, the second-stage stirrer B is small in size and distributed at four corners, the sewage which is not fully coagulated at the periphery is stirred and coagulated again, the lower part of the flocculation zone is designed into a bell mouth shape, the water flow speed entering a separation zone is reduced, and floccules are precipitated to the bottom of a clarification tank as soon as possible;
the sewage enters a separation area after primary coagulation and two-stage stirring, the cross-sectional area of the separation area is 3-6 times of that of a flocculation area, so that the water flow speed is slower in the separation area, sedimentation of finer floccules is facilitated, a mud scraper collects and conveys the settled flocculent sludge to the bottom of a pool, the rotating speed of the mud scraper is 15-20min/r, 2 three-stage stirrers C are arranged on a bridge arm of the mud scraper and rotate along with the mud scraper, partial upper lifting force is provided for the water flow, and a certain stirring effect can also be achieved;
the upper part of the separation area is provided with an inclined pipe device to improve the sedimentation efficiency and the sewage treatment capacity, and clear water after coagulation and clarification is collected on the upper liquid level and finally collected in an annular water collecting tank and discharged through an overflow port.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117142605A (en) * | 2023-09-27 | 2023-12-01 | 内蒙古包钢集团环境工程研究院有限公司 | An efficient clarifier |
| CN118304680A (en) * | 2024-05-10 | 2024-07-09 | 江苏八达科技股份有限公司 | Clarification equipment and clarification method thereof |
| CN118929867A (en) * | 2024-08-29 | 2024-11-12 | 金剑环保集团有限公司 | An integrated high-efficiency mechanical sedimentation tank |
| CN119219238A (en) * | 2024-09-29 | 2024-12-31 | 北京三联虹普新合纤技术服务股份有限公司 | A pre-treatment method for purifying and recovering NMMO solvent for preparing cellulose fiber by solvent method |
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| CN102010043A (en) * | 2010-11-01 | 2011-04-13 | 江苏新纪元环保有限公司 | Combined type water clarifying device |
| CN202590444U (en) * | 2012-04-17 | 2012-12-12 | 中冶华天南京工程技术有限公司 | Tube-in-tube clarification pool |
| CN114130072A (en) * | 2021-12-03 | 2022-03-04 | 王兴文 | Adjustable stirring concentration clarification tank and implementation method thereof |
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2021
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101874943A (en) * | 2009-04-30 | 2010-11-03 | 得利满水处理系统(北京)有限公司 | High-density clarifying tank |
| CN102010043A (en) * | 2010-11-01 | 2011-04-13 | 江苏新纪元环保有限公司 | Combined type water clarifying device |
| CN202590444U (en) * | 2012-04-17 | 2012-12-12 | 中冶华天南京工程技术有限公司 | Tube-in-tube clarification pool |
| CN114130072A (en) * | 2021-12-03 | 2022-03-04 | 王兴文 | Adjustable stirring concentration clarification tank and implementation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117142605A (en) * | 2023-09-27 | 2023-12-01 | 内蒙古包钢集团环境工程研究院有限公司 | An efficient clarifier |
| CN118304680A (en) * | 2024-05-10 | 2024-07-09 | 江苏八达科技股份有限公司 | Clarification equipment and clarification method thereof |
| CN118929867A (en) * | 2024-08-29 | 2024-11-12 | 金剑环保集团有限公司 | An integrated high-efficiency mechanical sedimentation tank |
| CN119219238A (en) * | 2024-09-29 | 2024-12-31 | 北京三联虹普新合纤技术服务股份有限公司 | A pre-treatment method for purifying and recovering NMMO solvent for preparing cellulose fiber by solvent method |
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