CN102961903A - Rotational flow grit chamber with guide cylinder - Google Patents

Rotational flow grit chamber with guide cylinder Download PDF

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Publication number
CN102961903A
CN102961903A CN2012104849390A CN201210484939A CN102961903A CN 102961903 A CN102961903 A CN 102961903A CN 2012104849390 A CN2012104849390 A CN 2012104849390A CN 201210484939 A CN201210484939 A CN 201210484939A CN 102961903 A CN102961903 A CN 102961903A
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CN
China
Prior art keywords
water
guide shell
main tank
hollow shaft
collecting hopper
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CN2012104849390A
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Chinese (zh)
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CN102961903B (en
Inventor
王文海
张晓红
郝二成
马文瑾
刘杰
李亚平
李丽佳
陈刚新
白煜
Original Assignee
北京城市排水集团有限责任公司
北京建筑工程学院
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Priority to CN201210484939.0A priority Critical patent/CN102961903B/en
Publication of CN102961903A publication Critical patent/CN102961903A/en
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Abstract

The invention discloses a rotational flow grit chamber with a guide cylinder, which is provided with a main chamber body, wherein one side of the main chamber body is provided with a water inlet and a water outlet respectively communicated with a water conveyance canal, and the side of a chamber wall, close to the water outlet, is provided with a partition plate; a sand collecting hopper is arranged in the center of the bottom of the chamber body, the guide cylinder is arranged above the sand collecting hopper, the lower part of the guide cylinder is of a thick cylinder body, the upper end of the guide cylinder is provided with a thin cylinder body in which a hollow shaft is arranged, the lower end of the hollow shaft is provided with an impeller arranged in the thin cylinder body, the hollow shaft is internally provided with a sand conveying pipe, and the lower end of the sand conveying pipe is communicated with an air lift pump or slurry pump; and the hollow shaft is in transmission connection with a speed-adjustable motor. The rotational flow grit chamber with the guide cylinder is suitable for removing sand grains in a water body in a pipeline or canal, reasonable and perfect in structure and better in sand removal effect as compared with the traditional sand removal device.

Description

A kind of rotational flow grit chamber with guide shell
Technical field
The invention belongs to a kind of water-treatment technology field, specifically be used for the facility of desanding of the rain, flood, sewage etc. of pipeline, channel, a kind ofly separate the device that contains sand grains in sand sewage or the rainwater by precipitation, particularly a kind of rotational flow grit chamber with guide shell.Also can be used for the desanding of various pipelines, channel conveying water body.
Background technology
A large amount of sewage, rainwater and other water bodys all will lean on underground piping to carry or discharging in the city.Often contain silt particle in these water bodys, these silt particles need in time to remove from water body, otherwise not only affect cleaning and the quality of water body, but also easily with line clogging, cause the damage of pipeline and surface structures.In sewage treatment plant, as larger particles silt not being removed, also will cause silting up of subsequent treatment facility, and cause disposal ability to descend, the problems such as equipment attrition, the safe and stable operation of harm sewage treatment plant.For a long time, people have proposed many water body desanding technology.Rotational flow grit chamber is the structure that comparatively generally adopts at present, can remove to a certain extent the silt particle in the water body.For example Chinese patent ZL 02220513.6, " a kind of rotational flow sand sinking device ", Chinese patent ZL200820206062.8, " desander for rotational flow grit pit " and U.S. Smith ﹠amp; The Bi Shi rotational flow grit chamber of Loveless company.Their common ground is: a cylindric pond body is set, an impeller is installed in body bottom, pond, the rotation by impeller promotes current, brings out center, current direction pond and converges, and makes sludge settling in the sand collecting hopper of pond central lower.Their common shortcomings are: the first, rotatablely moving of impeller is easy to make the sand grains that has precipitated to disperse, and reduces sand grains precipitation removal effect; The second, impeller is open design, impeller promotes that current bring out flowing of converging to the center, owing to the constraint effect that does not have solid boundaries is strong not, the 3rd, since wheel speed low, it is obvious not to the organic soil washing that adheres on the sand grains to rotatablely move.Therefore, need to improve prior art.
Summary of the invention
The present invention proposes a kind of rotational flow grit chamber with guide shell in order to solve the problems of the technologies described above, and this setting pot is provided with the guide shell of novel structure, and it is more reasonable that the position of impeller arranges, and greatly improved the effect of desanding.
The present invention takes following technical scheme:
A kind of rotational flow grit chamber with guide shell, be provided with main tank body, the pool wall of this main tank body is cylindrical shape, one side of its pond bottom centre is provided with water inlet and the canal for water conveyance end of intaking and is communicated with, on the pool wall of main tank body, the same side in pond bottom centre, the oblique upper of described water inlet is provided with delivery port and is communicated with canal for water conveyance water outlet one end, it is characterized in that: in main tank body pool wall lean on into, delivery port one side is provided with dividing plate, this dividing plate is horizontally disposed with, and described water inlet is below dividing plate, and described delivery port is above dividing plate, this dividing plate is semicircle, and its outer edge closely is connected with pool wall; Bottom centre place at main tank body is provided with sand collecting hopper, the top of this sand collecting hopper is provided with a columnar guide shell, the diameter of this guide shell is greater than described sand collecting hopper diameter, guide shell is fixed on the top of sand collecting hopper the end of by along upper support member, at the bottom of the guide shell along and the pond of main tank body at the bottom of between leave the gap; The guide shell bottom is the thick barrel of main body, the upper end is provided with the less thin barrel of diameter, the end opening of thin barrel is tightly connected by the suitable for reading of connecting plate and thick barrel, the upper port place of thin barrel is fixed with a hollow shaft, this hollow shaft lower end periphery is provided with an impeller in thin barrel, and the blade construction of impeller is: promote water to the main tank body top during rotation; Be provided with a sediment transport pipe in the hollow shaft, the lower port of this sediment transport pipe airlift pump that upward promote silt particle or the slag stock pump interior with being located at sand collecting hopper is communicated with; Described hollow shaft and a controllable motor transmission link.
The upper end of described thick barrel be provided with one for detection of guide shell in the sample suction pipe that draws water of water body.Can extract easily water body sample in the guide shell by this suction pipe, understand silt particle and promote situation, be convenient to regulate exactly at any time the rotating speed of controllable motor and impeller, guarantee better sedimentation of silt particle.
The running of setting pot of the present invention: contain sand sewage or rainwater and enter main tank body along inlet channel or channel, under the pool wall constraint of dividing plate and main tank body, rotate and flow and lifting, reach the top of dividing plate after rotating a circle, enter outlet canal; The sand grains that current carry is deposited on the main tank body base plate under Action of Gravity Field; The flow direction pool wall on top under the eddy flow centrifugal action, bottom water flow flows to the center, pushes the sand grains that is deposited on the main tank body base plate to central area; The sand collecting hopper that is lower than main tank body that the central area arranges, sand grains falls under gravity into wherein; Behind the sand grains accumulation certain hour, airlift pump or the work of slag stock pump are pumped into other device processing with sand grains and a certain amount of water along the sediment transport pipe, and motor rotates in concentric with it thin barrel by decelerator and hollow shaft impeller; The blade of impeller and horizontal direction to the water generates lifting force that makes progress, cause on the current direction and flow during rotation at an angle; Guide shell is divided into center and peripheral two zones with the water body in the main tank body, high flow rate in the motion of impeller and the thin barrel can not produce large disturbance to peripheral current, but in the guide shell bottom, current can accelerate to enter the center by the slit under the lifting force effect of impeller; Rotational speed regulation by designing and calculating and motor and decelerator, so that the current upflow velocity is controlled at a certain specific flow velocity in the thick barrel of central area, guarantee that the sand grains that floating velocity is higher than this value can not be taken away by ascending current, and enter sand collecting hopper in central area rolling, sinking, for example less than the upflow velocity of 0.02m/s, diameter is trapped in the guide shell greater than the sand grains of 0.2mm, finally falls into sand collecting hopper after the rolling; Sand grains rolls in guide shell and also the organic matter that sticks on the sand grains can be eluted, and reduces the load of the follow-up equipment that shakes out.
Beneficial effect of the present invention:
The first, the castering action of impeller has been owing to the effect of contraction that barrel is arranged has been strengthened flowing that the main tank body bottom inwardly converges, and the sand grains that gets off of collecting precipitation better prevents its deposition or again suspends and cause and disperse;
The second, the interior flow velocity that promotes of thick cylinder is controlled, guarantees that large sand grains can not flown ease from cylinder by the impeller stirring;
Three, the rolling effect of sand grains has increased the washed-out sand effect in the thick cylinder.
Four, guide shell is simple in structure, and is not high to shape, positional precision and sealing requirements, so manufacture craft is simple, consumable material is few, can be used for existing setting pot transformation, also can be used for newly-built setting pot, has practical extending application value.
Description of drawings
Fig. 1 is sectional structure schematic diagram of the present invention;
Fig. 2 is plan structure schematic diagram of the present invention.
Profile of the present invention is not subjected to the restriction of this figure, and only profile changes the protection domain that also belongs to this patent.
The specific embodiment
The present invention will be further described below in conjunction with drawings and Examples, embodiment: referring to accompanying drawing, a kind of rotational flow grit chamber with guide shell, be provided with main tank body 2, the pool wall of this main tank body is cylindrical shape, one side of its pond bottom centre is provided with water inlet and the canal for water conveyance end 1 of intaking and is communicated with, on the pool wall of main tank body, the same side in pond bottom centre, the oblique upper of described water inlet is provided with delivery port and is communicated with canal for water conveyance water outlet one end 3, it is characterized in that: in main tank body pool wall lean on into, delivery port one side is provided with dividing plate 4, this dividing plate is horizontally disposed with, and described water inlet is below dividing plate, and described delivery port is above dividing plate, this dividing plate is semicircle, and its outer edge closely is connected with pool wall; Bottom centre place at main tank body is provided with sand collecting hopper 5, the top of this sand collecting hopper is provided with a columnar guide shell, the diameter of this guide shell is greater than described sand collecting hopper diameter, guide shell is fixed on the top of sand collecting hopper the end of by along upper support member 13, at the bottom of the guide shell along and the pond of main tank body at the bottom of between leave the gap; The guide shell bottom is the thick barrel 12 of main body, the upper end is provided with the less thin barrel of diameter 9, the end opening of thin barrel is tightly connected by the suitable for reading of connecting plate and thick barrel, the upper port place of thin barrel is fixed with a hollow shaft 10, this hollow shaft lower end periphery is provided with an impeller 11 in thin barrel, and the blade construction of impeller is: promote water to the main tank body top during rotation; Be provided with a sediment transport pipe 7 in the hollow shaft, the lower port of this sediment transport pipe airlift pump that upward promote silt particle or the slag stock pump 6 interior with being located at sand collecting hopper is communicated with; Described hollow shaft and controllable motor 8 transmission links.The upper end of described thick barrel be provided with one for detection of guide shell in the sample suction pipe that draws water of water body.
Present embodiment arranges in the irrigation channel of certain metropolitan sewage treatment plant, tries out 1 year, and desanding effect is better than original setting pot greatly, and silt particle Ex-all rate has improved 20%.
Should be pointed out that for those skilled in the art under the prerequisite that does not break away from patent principle of the present invention, can also make some improvements and modifications, these improvements and modifications also should be considered as the protection domain of patent of the present invention.

Claims (2)

1. rotational flow grit chamber with guide shell, be provided with main tank body (2), the pool wall of this main tank body is cylindrical shape, one side of its pond bottom centre is provided with water inlet and the canal for water conveyance end (1) of intaking and is communicated with, on the pool wall of main tank body, the same side in pond bottom centre, the oblique upper of described water inlet is provided with delivery port and is communicated with canal for water conveyance water outlet one end (3), it is characterized in that: in main tank body pool wall lean on into, delivery port one side is provided with dividing plate (4), this dividing plate is horizontally disposed with, and described water inlet is below dividing plate, and described delivery port is above dividing plate, this dividing plate is semicircle, and its outer edge closely is connected with pool wall; Bottom centre place at main tank body is provided with sand collecting hopper (5), the top of this sand collecting hopper is provided with a columnar guide shell, the diameter of this guide shell is greater than described sand collecting hopper diameter, guide shell is fixed on the top of sand collecting hopper the end of by along upper support member (13), at the bottom of the guide shell along and the pond of main tank body at the bottom of between leave the gap; The guide shell bottom is the thick barrel (12) of main body, the upper end is provided with the less thin barrel of diameter (9), the end opening of thin barrel is tightly connected by the suitable for reading of connecting plate and thick barrel, the upper port place of thin barrel is fixed with a hollow shaft (10), this hollow shaft lower end periphery is provided with an impeller (11) in thin barrel, and the blade construction of impeller is: promote water to the main tank body top during rotation; Be provided with a sediment transport pipe (7) in the hollow shaft, the lower port of this sediment transport pipe airlift pump that upward promote silt particle or the slag stock pump (6) interior with being located at sand collecting hopper is communicated with; Described hollow shaft and a controllable motor (8) transmission link.
2. rotational flow grit chamber according to claim 1 is characterized in that: the upper end of described thick barrel be provided with one for detection of guide shell in the sample suction pipe that draws water of water body.
CN201210484939.0A 2012-11-26 2012-11-26 Rotational flow grit chamber with guide cylinder Active CN102961903B (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103285633A (en) * 2013-06-13 2013-09-11 安徽国祯环保节能科技股份有限公司 Stirring impeller of sand removing machine in vortex-type grit chamber
CN104056473A (en) * 2014-06-30 2014-09-24 安徽理工大学 Rainwater pipeline rotational flow grit chamber
CN105396334A (en) * 2015-12-07 2016-03-16 宋德安 A staged aerated grit washing and removing device used for an aerated grit chamber
CN107298192A (en) * 2017-06-08 2017-10-27 苏州首达机械有限公司 Filling batch can
CN111255013A (en) * 2020-01-17 2020-06-09 贵州中能投科技有限公司 Surface water taking device

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4681711A (en) * 1986-05-06 1987-07-21 Eaton John M Method and apparatus for aeration of wastewater lagoons
US4767532A (en) * 1987-05-21 1988-08-30 Smith & Loveless, Inc. Apparatus for removing grit
CN1317354A (en) * 2001-04-02 2001-10-17 白春明 Cyclone-type sand precipitating pool
CN2536583Y (en) * 2002-05-10 2003-02-19 东华工程科技股份有限公司 Cyclonic sand settling devices
CN201342270Y (en) * 2008-12-25 2009-11-11 广东新大禹环境工程有限公司 Desander for rotational flow grit pit
CN201510785U (en) * 2009-09-22 2010-06-23 商城县开源环保设备有限公司 Cyclone sand removing machine
CN102224108A (en) * 2008-12-01 2011-10-19 威立雅水务解决方案与技术支持公司 Method and apparatus for sewage grit removal
CN102512857A (en) * 2011-12-20 2012-06-27 北京建筑工程学院 Multistage integrated hydrodynamic cyclone separator
CN102527106A (en) * 2011-03-03 2012-07-04 姚茂红 Full-automatic rotational flow sand setting and removing machine
CN202446874U (en) * 2012-02-06 2012-09-26 江苏中超环保有限公司 Hydraulic cyclone sand setting device

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4681711A (en) * 1986-05-06 1987-07-21 Eaton John M Method and apparatus for aeration of wastewater lagoons
US4767532A (en) * 1987-05-21 1988-08-30 Smith & Loveless, Inc. Apparatus for removing grit
CN1317354A (en) * 2001-04-02 2001-10-17 白春明 Cyclone-type sand precipitating pool
CN2536583Y (en) * 2002-05-10 2003-02-19 东华工程科技股份有限公司 Cyclonic sand settling devices
CN102224108A (en) * 2008-12-01 2011-10-19 威立雅水务解决方案与技术支持公司 Method and apparatus for sewage grit removal
CN201342270Y (en) * 2008-12-25 2009-11-11 广东新大禹环境工程有限公司 Desander for rotational flow grit pit
CN201510785U (en) * 2009-09-22 2010-06-23 商城县开源环保设备有限公司 Cyclone sand removing machine
CN102527106A (en) * 2011-03-03 2012-07-04 姚茂红 Full-automatic rotational flow sand setting and removing machine
CN102512857A (en) * 2011-12-20 2012-06-27 北京建筑工程学院 Multistage integrated hydrodynamic cyclone separator
CN202446874U (en) * 2012-02-06 2012-09-26 江苏中超环保有限公司 Hydraulic cyclone sand setting device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103285633A (en) * 2013-06-13 2013-09-11 安徽国祯环保节能科技股份有限公司 Stirring impeller of sand removing machine in vortex-type grit chamber
CN104056473A (en) * 2014-06-30 2014-09-24 安徽理工大学 Rainwater pipeline rotational flow grit chamber
CN105396334A (en) * 2015-12-07 2016-03-16 宋德安 A staged aerated grit washing and removing device used for an aerated grit chamber
CN105396334B (en) * 2015-12-07 2017-06-16 宋德安 A kind of washed-out sand desanding device of aeration stage by stage for aerated grit chamber
CN107298192A (en) * 2017-06-08 2017-10-27 苏州首达机械有限公司 Filling batch can
CN111255013A (en) * 2020-01-17 2020-06-09 贵州中能投科技有限公司 Surface water taking device

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