SU882948A1

SU882948A1 - Settler

Info

Publication number: SU882948A1
Application number: SU792711859A
Authority: SU
Inventors: Федор Васильевич Косовцев; Марк Наумович Гуревич; Израиль Григорьевич Лирисман; Григорий Наумович Фельдштейн
Original assignee: Предприятие П/Я А-1705
Priority date: 1979-01-10
Filing date: 1979-01-10
Publication date: 1981-11-23

Description

Изобретение относится к обработке воды, промышленных и бытовых сточных вод и может быть использовано на очистных сооружениях водоснабжения и канализации.The invention relates to the treatment of water, industrial and domestic wastewater and can be used in wastewater treatment plants for water supply and sewage.

Известен отстойник для удаления взвешенных веществ из сточных вод, имеющий цилиндрический корпус с приямком для сбора осадка,-внутри которого размещен центральный цилиндрический экран, установленный на расстоянии от днища корпуса и диаметр которого равен диаметру приямка, переливной лоток, подводящий и отводящий трубопроводы.Known sump for removal of suspended solids from wastewater, having a cylindrical body with a pit for collecting sludge, inside of which there is a central cylindrical screen installed at a distance from the bottom of the body and whose diameter is equal to the diameter of the pit, overflow tray, inlet and outlet pipelines.

Осадок, идущий в приямок, взмучивается встречным потоком воды, и при этом образуется взвешенный слой£11The sediment going into the pit is agitated by a counter flow of water, and a suspended layer of £ 11 is formed.

Недостатком данной конструкции является то, что при взмучивании в первую очередь поднимаются более легкие, мелкие частицы, что приводит к нарушению взвешенного слоя, особенно при колебаниях нагрузки и темпе2 ратуры и снижению эффекта его работы .The disadvantage of this design is that during the stirring, first of all, lighter, smaller particles rise, which leads to disruption of the suspended layer, especially when the load and temperature fluctuate and the effect of its operation decreases.

Цель изобретения - повышение эффективности использования при значительных колебаниях нагрузки и темпе^s ратуры путем обеспечения стабильности взвешенного слоя осадка.. Указанная цель достигается тем, что направляющий экран выполняется в форме обратного усеченного конуса с углом наклона его стенки к вертикали., равным 30-60^, при этом нижнее основание экрана не менее площади впускного отверстия водораспределительной воронки.The purpose of the invention is to increase the efficiency of use at significant fluctuations in load and temperature ^s by ensuring the stability of the suspended sediment layer. This goal is achieved in that the guide screen is made in the form of a reverse truncated cone with an angle of inclination of its wall to the vertical. Equal to 30-60 ^ while the lower base of the screen is not less than the area of the inlet of the water distribution funnel.

¹⁵ На чертеже изображен отстойник, продольный разрез. ¹⁵ The drawing shows a sump, a longitudinal section.

Отстойник содержит цилиндрический корпус 1, подводящий трубопровод 2, отводящий трубопровод 3, направляющий экран 4 в виде обратного усеченного конуса с углом наклона его стенки к вертикали, равным 3060°, водораспределительную воронку 5, приямок 6 для сбора осадка с трубопроводом 7 для удаления осадка. Нижйее основание 8 экрана 4 не является зоной отстаивания крупной взвеси и его площадь не менее площади выпуск-^ 5 ного отверстия воронки. ' ”The sump contains a cylindrical housing 1, a supply pipe 2, a discharge pipe 3, a guide screen 4 in the form of a reverse truncated cone with an angle of inclination of its wall to the vertical of 3060 °, a water distribution funnel 5, a pit 6 for collecting sludge with a pipe 7 for removing sludge. The lower base 8 of the screen 4 is not a zone of settling of a large suspension and its area is not less than the area of the outlet opening of the funnel. '”

Работа отстойника происходит следующим образом.The work of the sump is as follows.

Вода по трубопроводу 2 через водораспределительную воронку 5 подается ю в пространство, образованное верхней частью экрана 4. Большое сечение в этой зоне позволяет снизить скорость до такой величины, что происхо'г дит активное выпадение крупных частиц. Благодаря наклонной плоскости экрана 4, крупный ил, выпадающий в этой зоне, попадая на стенки экрана 4,сползает к щели для прохода воды в отстойную часть. В нижней час-; ти экрана 4, пде сечение становится меньше, а скорость воды увеличивается, ил подхватывается потоком воды и выносится в отстойную часть, где при повторном падении скорость воды образует взвешенный слой осадка, через который фильтруется вода и где на крупных частицах оседают мелкие.Water through pipeline 2 through a water distribution funnel 5 is fed into the space formed by the upper part of the screen 4. A large cross-section in this zone reduces the speed to such a value that large particles are actively precipitated. Due to the inclined plane of the screen 4, large sludge falling in this zone, falling on the walls of the screen 4, slides to the slit for water to pass into the settling part. In the lower hour; the screen 4, where the cross section becomes smaller, and the water velocity increases, the sludge is picked up by the flow of water and carried to the sedimentation part, where when the water drops again, the water velocity forms a suspended sediment layer through which water is filtered and where small particles settle on large particles.

При изменении производительности взвешенный слой крупных частиц находится ближе или дальше от кромки экрана.When productivity changes, the suspended layer of large particles is closer or further from the edge of the screen.

Таким образом, изобретение позволяет. обеспечивать улучшенный эффект осветления и устойчивую работу отстойника в большом диапазоне изменения производительности.Thus, the invention allows. provide an improved clarification effect and stable operation of the sump in a wide range of productivity changes.

Claims

The invention relates to the treatment of water, industrial and domestic wastewater, and can be used in water and sewage treatment plants. A septic tank for removing suspended matter from wastewater is known, as well as a cylindrical housing with a sludge collector, in which a central cylindrical screen is placed, which is located at a distance from the bottom of the housing and whose diameter is equal to the diameter of the sludge; and discharge pipelines. The sediment that goes into the ice is agitated by a counter-flow of water, and a suspended layer is formed. The disadvantage of this design is that during the suspension, the lighter, smaller particles are raised first, which leads to a violation of the suspended layer, especially during vibrations load and temperature and reduce the effect of its work. The purpose of the invention is to increase the efficiency of use with significant fluctuations in load and temperature by ensuring the stability of the suspended sediment layer. The specified goal is to achieve are the fact that the guide screen is performed 3 form a reverse truncated cone with an angle of inclination of its walls to the vertical, equal to 30-60, while the lower bottom of the screen is not less than the inlet area of the water distribution funnel. The drawing shows a sump, longitudinal section. The settling tank contains a cylindrical body 1, a supply pipe 2, a discharge pipe-conductor 3, a guiding screen 4 in the form of a reverse truncated cone with a tilt angle of its wall to the vertical of 3060 °, a water distribution funnel 5, .3 at a charge 6 for collecting sediment conduit 7 to remove sludge. The bottom of the itee the base 8 of the screen 4 is not a zone of settling a large suspension. And its area is not less than the outlet of the funnel outlet. The operation of the sump is as follows. The water through the pipeline 2 through the water distribution funnel 5 is fed into the space formed by the upper part of the screen 4. A large cross section in this zone allows the speed to be reduced to such a value that large particles will actively fall out. Due to the inclined plane of the screen 4, crust sludge, fallout in this zone, falls on the walls of the screen 4, slides to the slot for the passage of water into the settling part. At the bottom of screen 4, where the cross section becomes smaller and the water speed increases, the sludge is picked up by the water flow and is carried to the settling part, where when it falls again, the water speed forms a suspended sediment layer through which water is filtered and where small particles are deposited. When the performance changes, the weighted layer of large particles is closer or farther from the edge of the screen. 8 Thus, the invention makes it possible to provide an improved clarification effect and a stable settler operation in a wide range of capacity variations. Claims An inlet settler comprising a precipitation collection housing, a guiding screen mounted above the landing, a water distribution funnel With a feed pipe and a discharge pipe characterized in that it has an effective efficiency chain by ensuring stability a suspended layer of sediment with significant fluctuations in load and temperature, the guide screen is made in the form of a reverse truncated cone with an angle of inclination of its wall to the vertical, equal to 30-60, while the lower base of the screen Ana no less than the area of the outlet of the water distribution funnel. Sources of information taken into account during the examination 1. USSR auto certificate №585126, cl. C 02 C 1/26, 1976.