SU1594150A1 - Settling tank - Google Patents

Abstract

The invention relates to the treatment of industrial wastewater containing heavy sludges and petroleum products, in particular to the purification of scale-oil-containing wastewater, primarily rolling and pipe-rolling units, continuous casting machines, metal firing machines in the metallurgical and machine-building industries. The aim of the invention is to increase the efficiency of wastewater treatment through the organization of two-stage treatment in one tank. The device contains a tank 1, a tray 6 with a spillway edge 7, a semi-submerged partition 8 located behind the entrance tray 6, an inclined ramp 9 with an angle of inclination to the horizon not less than the angle of free sliding of the sediment, a block of two thin-layer modules 15 and 16, bounded by vertical partitions 17 and 18, equipped with swivel lids and forming with a thin-layer modules 15 and 16 a closed chamber, from the surface of which the oil-collecting device 23 is collected and removed from the flooded petroleum products. placed on a three-sided prism, on top of which a vertical partition 14 is installed. On the first face of the liquid during the liquid movement of the prism there is a thin-layer module 15 with a backward inclination of the plates, and on the second face symmetrically another thin-layer module 16 with a direct inclination of the plates. An oil collecting device in the form of a slotted pipe 23 is placed in front of the closed chamber. A spillway 24 and a tray 25 are located at the outlet of the sump. A grab crane is installed to remove sediment. 2 hp ff, 1 ill.

Description

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Retenn is povyshenie wastewater treatment efficiency through the organization of two-stage purification in one tank. The device contains a tank 1, tray b-with a water edge. 7, a semi-submerged partition 8 located behind the entrance tray b, an inclined ramp with an angle of inclination to the horizon not less than the angle of free sliding of the sediment is a block of two thin-layer modules 15 and 16, bounded by vertical partitions 17 and 18, equipped with noBOpoTHMMii lids and forming with thin layers by modules 15 and 16 a closed chamber from which the surface is collected and removed from the surface. The invention relates to the purification of industrial waters from heavy water, containing heavy sediments and oil products,

Particularly, to cleaning the scale-oil-containing wastewaters, first of all, rock and tube-rolling units, continuous casting bills, and fire metal stripping in all industrial and engineering industries. The purpose of the invention is to simplify sludge extraction and simplify installation of modules ..

Figure 1 shows the settling. plan | figure 2 - section aa pa figure 1.

The sump contains a reservoir 1 with sections 2 and 3 located in it (the number of sections is accepted by calculation, with at least two). At the same time, the reservoir 1 consists of a narrowed inlet part 4, which smoothly converts into an extended outlet part 5. Each of the sections includes an inlet water distribution tray 6 for the inlet, the original Ж1-ЩКОСТИ c. spillway edge 7, semi-submerged partition 8, located behind the inlet tray 6, inclined ramp 9, installed under eg tray 6, settling zone 10, 11 and 12 for scale, trihedral support prism 13, on top of which there is a vertical partition 14. On the first, in the course of fluid motion, the face of the prism 13 is fitted with a thin-layer module 15 with: plates, a parallel Ii face, and on the second face, 55

oil products with an oil-collecting device 23. Moreover, thin-layer modules are located —on a three-sided support prism, on top of which a vertical partition 1A is installed. A thin layer module 15 with reverse plates is installed on the first face of the prism along the liquid movement, and another thin layer module 16 with a straight inclination of the plates is symmetrical on the second face. An oil collecting device is placed in front of the closed chamber, in the form of a slit pipe 23 o. A weir 24 and a tray 25 are discharged at the outlet of the settling tank. A grease tap of 3 GoP is installed to remove sediment. f-ly, 2 ill.

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another thin layer module 16 with an opposite inclination parallel to the prism face. Thin-layer modules 15 and 16 are separated from the rest of the settler by semi-submerged vertical partitions 17 and 18 with rotating NyG-1I lids 19 and 20, which, together with thin-layer modules 15 and 16, form a closed chamber 21, which is collected and removed from the surface of the cora sprinkling oil products with an additional oil-collecting device 22. In front of the closed chamber 21 there is an oil-collecting device in the form of a slit pipe 23. At the outlet of the sediment there is a spillway 24 and a tray 25 for draining the clarified skin. A grab crane 26 is installed to remove sediment.

The sump works as follows.

Scale-oil and waste water 1 By means of intrashop tunnels from the tray from the respective units enter the settling tank through the inlet water distribution pane, the flush tray 6 with the overflow edge 7. The fluid flow, deflected by a semi-submersible partition 8 to ramp 9, slides along its inclined surface and enters into the settling zone 10, where the sediment of the largest scale particles, removed by the grab crane 26, takes place, and the greatest amount of oil j-products that are removed with the help of oil Osborne slotted tube 23.

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At the same time, a scale drops out at the entrance of the scoop zone 10 along the 1-CONSTANT surface of the ramp 9. As a result of the smooth transition of the narrowed inlet part 4 to the extended output part 5, the flow of fluid slows down its speed and enters the block of states of two thin-layer MO modules, namely, the thin-layer module 1 5,

When the flow of fluid in the thin-layer module 15 is sharply intensified. The loss of scale, which creeps under the angle to the input plane of the inclined elements and, pro- cass, crawls along the inclined face of the prism 13, falls into the scale 11, and from where it also comes from Far Gray.

A ferric valve 26, while lumping in a small amount of oil is lifted along the inclined elements of the thin-layer MODULE 15, accumulates on the surface of the closed chamber 21, from where it is removed by the sump 22. At the exit of the thin-layer module 15, the fluid flow turns 90 °, turning a vertical partition 14 along this, in order to lengthen the path. fluid flow when moving from one thin-layer module to another. 3d Theme enters the thin-layer mode ul 16 where, when the flow moves down, the fractions of emulsified oil products also float to reach the upper surface of the inclined elements of the thin-layer module 16, and then, as the easiest fractions, gather on the surface of the closed chamber 21, from which At the same time, additional scale sedimentation takes place, some of which move

down, they reach the bottom surface of the inclined elements of the thin layer of the moul 16 and, moving along the inclined - wound of the prism 13, fall into the dc 12 for the scale, from where they are also removed by a clamshell 26: of -

oncologic module 16, the flow of liquid

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the bone turns upward at an angle exceeding the 90th, rushes towards the drain 24, is transferred through it into the tray 25. The operation cycle ends and the CLEAN1 process is repeated as it is described

Swivel 19 II 20 prevent the ingress of sediment I, the module and the partition, and simplify the modules.

F o rm u l a i b o te n i

 1. A settling tank, a soderhaidp tank with trays for supplying the source and discharge of the clarified liquid j sludge discharge unit, oil collection device, located in} 1 of the tank three vertical partitions, installed between the first and second partitions a thin layer module with inclined plates and placing a thin layer of second and third partitions with plates having: tilting the plates in the opposite direction, about t and h and y - y and so, in order to simplify the withdrawal of sediment, it is equipped with installed across the tank t With a strapped prism, which locks to the middle of the partition, with E1, thin-layer moduli are mounted on the upper jaw of the prism parallel to the gracl.

2. A settling tank according to claim 15 of tl and - tea w, and with the fact that it is equipped with an additional oil collector, it is located between the thinnest of the tubes;

3 „Sink according to n.l, from l and h a to e E | and with the fact that it is provided with a ramp installed in the reservoir of the inlet

4. A settling tank according to any one of claims 1, 1, and 2, with the fact that, with a simplification of the installation of the modules, the partitions are equipped with pivotally mounted rotary hinges.

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Claims (4)

F o rm u l a i r i t i Ί. A sump containing a tank with trays for supplying the source and removal of the clarified liquid, the sludge removal unit, the oil collection device, three vertical partitions inside the tank, a thin layer module between the first and second partitions and a thin layer module placed between the second and third partitions and plates !, having a tilt of the plates in the opposite direction, about tl and h and h · щ and th with the fact that, in order to simplify the withdrawal of sediment, it is equipped with a three-way installed across the tank A prism with an adjacent apex to the middle partition, with thin-layer modules mounted on the upper part of the prism parallel to the faces. 2. The sump of pop. 1, of which is supplied with an additional oil-collecting device, located between thin glasses and other devices. 3. The sump pop.1, from l and chaiyu and th with i that it is equipped with a ramp installed in the tank under the inlet tray. 4. The sump according to claim 1, that is, so that, in order to simplify the installation of the modules, the partitions are equipped with pivoting covers mounted on top. 1594150 LA