SU1279969A1

SU1279969A1 - Settling tank

Info

Publication number: SU1279969A1
Application number: SU853849928A
Authority: SU
Inventors: Гарри Семенович Пантелят; Сергей Ефимович Никулин; Семен Иосифович Эпштейн; Владимир Авраамович Холодный; Юрий Анатольевич Галкин; Леонид Леонидович Кочнев
Original assignee: Уральский Государственный Институт По Проектированию Металлургических Заводов "Уралгипромез"
Priority date: 1985-01-24
Filing date: 1985-01-24
Publication date: 1986-12-30

Abstract

Изобретение относитс к установкам по очистке сточных вод и позвол ет иктенсифицировать процесс очистки сточных вод от взвешенных веществ, масел и малорастворимых солей. Отстойник состоит нз цилиндрического корпуса 1, внутри которого размещена цилиндрическа перегородка 2, дел ща объем отстойника на камеру флокул ции 3 и камеру отстаивани 4. Внутри камеры флокул ции 3 размещена реакционна камера 7 в виде неподв скного конуса, в вершине которого установлено рециркул ционное устройство, состо щее из конфузора 9 и цилиндра 10, что позвол ет интенсифицировать процесс предварительной обработки сточных вод. Выполнение камеры флокул ции 4 с днищем 17, установленным с возможностью вршцени и вертиThe invention relates to sewage treatment plants and allows for the ixesensitization of the sewage treatment process from suspended solids, oils and poorly soluble salts. The settling tank consists of a cylindrical housing 1, inside of which a cylindrical partition 2 is placed, dividing the volume of the settling tank by the flocculation chamber 3 and the settling chamber 4. Inside the flocculation chamber 3 is placed the reaction chamber 7 in the form of a non-linear cone, at the top of which is a recirculation device consisting of confuser 9 and cylinder 10, which makes it possible to intensify the pretreatment process of wastewater. Performing flocculation chamber 4 with bottom 17 installed with the possibility of vertical and vertical

Description

t27 кального перемещени и имеющим борта 19, позвол ет изолировать камеру флокул ции от камеры отстаивани , что исключает возможность повторного взмучивани шлама и предотвращает вынос его в лоток сбора осветленной воды . Выполнение камеры флокул ции в ее верхней части с отверсти ми 6, сообщающимис с распределительными выпус ками 5, позвол ет исключить попада9 ние масла в камеру отстаивани . Установка распределительных выпусков в нижней части отстойной камеры позвол ет осуществить процесс ускоренной седиментации в услови х вращательного Движени исходной воды снизу вверх через толщу воды, насыщенной осаждающимис скоагулированными флокулами. 1 з.п. ф-лы, 5 ил.The t27 of the displacement and having a bead 19 allows the flocculation chamber to be isolated from the settling chamber, which eliminates the possibility of re-agitating the sludge and prevents it from being carried into the collection tray of the clarified water. The implementation of the flocculation chamber in its upper part with the openings 6 communicating with the distribution outlets 5 makes it possible to prevent the ingress of oil into the settling chamber. The installation of distribution outlets in the lower part of the settling chamber allows the process of accelerated sedimentation in the conditions of the rotational movement of the source water from the bottom up through the water column saturated with precipitating coagulated floccules. 1 hp f-ly, 5 ill.

Изобретение относитс к очистке жидкостей отстаиванием и может быть использовано дл очистки сточных вод в черной металлургии, машиностроении нефтехимической промъшшенности и других отрасл х народного хоз йства.The invention relates to the purification of liquids by settling and can be used for the treatment of wastewater in the ferrous metallurgy, petrochemical industry and other branches of the national economy.

Цель изобретени - интенсификаци процесса очистки сточных вод of взвешенных веществ, масел и мгшорастворимых солей..The purpose of the invention is to intensify the process of wastewater treatment of suspended solids, oils and soluble salts ..

На фиг, 1 приведен отстойник, общий вид, план; на фиг. 2 - разрез А-А на фиг. 1; на фиг. 3 - разрез Б-Б на фиг.15 на фиг.4 - вид В на фиг. 3; на фиг. 5 - В1ад Г на фиг.З.Fig, 1 shows the sump, general view, plan; in fig. 2 shows section A-A in FIG. one; in fig. 3 is a section bB in FIG. 15 in FIG. 4 - view B in FIG. 3; in fig. 5 - V1ad G on fig.Z.

Отстойник состоит из и;илиндрического корпуса 1, внутри которого размещена цилиндрическа перегородка 2, раздел юща объем отстойника на камеры флокул ции 3 и отстаивани 4, Ма перегородке 2 в нижней ее части со CTOpo;-;i r камеры отстаивани размещены распределительные выпуски 5, а в верхней части- перегородка 2 выполнена с отверсти ми 6. Внутри камеры флокул ции 3 размещена реакционна камера 7, отделенна от камеры флокул ции перегородкой 8, выполненной в виде неподвижного конуса, в вершине которого установлено рециркул ционное устройство, выполненное в виде конфузора 9 и цилиндра 10, встроенного в реакционную камеру. В нижней части реакционной камеры расположены тангенциальные выпуски 11, а через ось камеры проходит вал 12, соединенный со скребками 13 и с приводом 14, закрепленным на ферме 15, установленной над отстойником. В верхней части реакционной камеры 7 на уровне цилиндра 10 размещено устройство 16 танге -1циальнс)го ввода неочищенной воды. Флокул ционна 3 и реакционна 7 камеры снабжены общим днищем 17 и неподвижным скребком 18 Днище 17 закреплено на валу 12. На днище закреплены борта 19, что позвол ет наилучшим образом герметизировать камеры 3 и 7, В точках сопр жени скребка 18 с перегородкой 8 размео;ены шламовые окна 20. В верхней части Кс1меры отстаивани размещено устройство отвода осветленной воды, выполненное в виде кольцевого лотка 21, перед коюрым установлена полупогр окна перегородка 22, на которой закреплено маслосборное устройство , выполненное в виде кольцевого лотка 23. Перегородки 2 и 22 закреплены на ферме 15. В нижней части камеры отстаивани размещен шламосборный канал 24 с трубой 25 .дл отвода ишама из отстойной камеры . Отверсти 6 оснащены переливными карманами 26 и соединены радиальными каналами 27 с распределительными выпусками 5. Каналы 27 образованы обечайкой 28, закрепленной на перегородке 2, и радиальными перегородками 29, установленными между обечайкой 28 и перегородкой 2. В каждом канале 27 может быть расположено от до 3 отверстий 6. Е верхней части камеры флокул ции 3 размещено дополнительное маслосборное устройство 30 с .отводной трубкой 31.The sump consists of a cylindrical housing 1, inside which is a cylindrical partition 2, which divides the volume of the sump into flocculation chambers 3 and settling 4, Ma partition 2 in the lower part with CTOpo; -; ir the settling chambers accommodate distribution issues 5, and in the upper part, the partition 2 is made with holes 6. Inside the chamber of the flocculation 3 there is a reaction chamber 7, separated from the chamber of flocculation by a partition 8, made in the form of a fixed cone, at the top of which a recirculation device made in the form of confuser 9 and cylinder 10, built into the reaction chamber. Tangential outlets 11 are located in the lower part of the reaction chamber, and a shaft 12 passes through the axis of the chamber and is connected to the scrapers 13 and to the drive 14 mounted on the truss 15 mounted above the settling tank. In the upper part of the reaction chamber 7, at the level of the cylinder 10, a device 16 of the tanga-1 is placed where the raw water is introduced. Flocculating 3 and reactionary 7 chambers are equipped with a common bottom 17 and a fixed scraper 18. The bottom 17 is fixed on the shaft 12. On the bottom the sides 19 are fixed, which makes it possible to seal chambers 3 and 7 in the best way. At the interface points, scraper 18 with partition 8; Yen slurry windows 20. In the upper part of the Ks1mery of settling, a device for drainage of clarified water is placed, made in the form of an annular tray 21, and a half-hem is installed in front of the coarser window 22, on which is mounted an oil collecting device made in the form of an annular tray 23. Partitions 2 and 22 are fixed on the farm 15. In the lower part of the settling chamber, there is a sludge collecting duct 24 with a pipe 25. The removal of the isham from the settling chamber. The holes 6 are equipped with overflow pockets 26 and connected by radial channels 27 to distribution outlets 5. Channels 27 are formed by a shell 28 fixed on the partition 2 and radial partitions 29 installed between the shell 28 and the partition 2. In each channel 27 can be located from up to 3 openings 6. The upper part of the flocculation chamber 3 is provided with an additional oil separating device 30 s. a diverter tube 31.

Отстойник работает следующим образом .The sump works as follows.

Claims

Water that is processed, containing suspended solids, poorly soluble 31 salts and reagents, is piped tangentially through pipe 16 into the upper part of the reaction chamber 7. In chamber 7, a rotational downward flow is created, which allows to intensify mass transfer processes. Under these conditions, the rate of formation of crystals of soluble salts increases. In addition, the interaction of suspended solids and flocculators is enhanced. Heavy suspended particles are deposited on the rotating shaft 12 by the bottom 17. Next, the treated water flows through the tangential outlets 11 into the flocculation chamber 4, and the seeding slurry through the fixed scraper 18 through the slurry windows 20 flows into the flocculation chamber 3. The pretreated water entering the settling chamber 4 and containing the fine slurry moves in the form of a rotational-rising flow upwards. When this occurs, the process of aggregation of small particles into large particles and their partial sedimentation. This process is intensified by pre-speed mixing in the reaction chamber 7 due to the active interaction with each other of the formed crystals, such as calcium carbonate, and the particles of the suspension with flocculants. A portion of the formed flakes rises to the upper part of the settling chamber 4 and is captured by the recirculation device. This is due to the suction within the confuser 9 due to the fact that around cylinder 10 there is a pressure rotational downward movement of the source water supplied through the tangential pipe 16 installed above the edge of the cylinder 10 of the recirculation device. The arrival of aggregate suspended flakes in the reaction chamber 7 contributes to the intensification of the salt crystallization process due to a sharp increase in the number of crystallization centers. In addition, the largest aggregated floccules deposited in the flocculation chamber create a filtering layer that facilitates the retention of smaller particles. 69 Next, from the flocculation chamber, the pretreated water through openings 6 through channel 27 and through distribution outlets 5 enters the flocculation chamber 3 bounded by housing 1 and on the other side by a cylindrical partition

2. In the chamber 3 of flocculation, a gravitational flocculation of a fine suspension occurs. Yes, the settled coarse and fine slurry is scraped into the sludge duct 24 by means of a scraper 18 and discharged from the housing I by means of a pipe 25 for removing sludge. Oil is removed from the settling tank as follows. The fine fractions of oils float in the chamber of floccules on 4 and 4. The oil pockets in the opening 6 of the P pockets 26, whose input ﬁ elds are directed up. All 5 / left oil is pushed to the periphery due to the rotating flow of water, where it is caught by the additional oil-collecting device 30, and the oil-withdrawing pipe 31 is removed from the housing 1. In the flocculation chamber 3, larger fractions of oil are eluted which are removed by means of an oil collector in the form of tray 23. A semi-heated partition wall 22 prevents oil from entering the clarified water collection tray 21. Thus, the sump allows to intensify the process of wastewater purification from suspended substances , oils and poorly soluble salts. Achieve almost complete trapping of oils and their utilization. Claim 1. Drain tank, housing contents, distribution outlets for providing alternation of treated water, a device for discharge of clarified water, a camera for settling and a flocculation chamber, including a reaction chamber, scrapers fixed on the shaft with a drive, a selection device for torsion, a tangential device supplying the treated water and an oil-collecting device, characterized in that, in order to intensify the process of wastewater purification from suspended matter, oils and poorly soluble salts, the settler is equipped with recycling stroystvom arranged in the upper

parts of the reaction chamber and made in the form of a confuser connected to a cylinder embedded in the reaction chamber, while the device of tangential supply of purified water is placed at the level of the cylinder, and the flocculation chamber is made with openings in the upper part and is equipped with an additional oil collection device,

23

22

21

the bottom, the scraper and the overflow pockets placed at the holes communicating with the distribution outlets located in the lower part of the settling chamber.

2 "A settling tank according to claim 1, characterized in that the bottom of the flocculation chamber is mounted on the shaft and provided with a board.

eleven

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