SU1526747A1 - Thin-layer settling tank - Google Patents

Abstract

The invention relates to mechanical cleaning fluid. The purpose of the invention is to increase the efficiency of the settler and expand its operational capabilities by adjusting the vibration parameters. To this end, the sump is provided with an elastic seal 8 in the form of a ring located on the disk 9 on the side of the inlet pipe 6, while the disk 9 is rigidly connected to the package of inclined shelves 11 pivotally suspended from the body 1 on parallel rods x 12 of the same length A flange 7 is made at the end of the inlet nozzle. The passage of the liquid to be cleaned through the annular gap between the flange 7 and the seal 8 causes the disk 9 and the stack of shelves 11 to oscillate, intensifying the process of settling and removing the sediment from the shelves. The oscillation parameters are optimized by a fixed axial displacement of the flange 7 and the adjustment of the spring 13. 1 Cp f-ly, 1 ill.

Description

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ABOUT)

The invention relates to devices for the clarification of liquids and can be used for the mechanical treatment of industrial wastewater in ferrous and nonferrous metallurgy, coal, mining and other industries.

The purpose of the invention is to increase the efficiency of the sump and expand its operational capabilities by adjusting the vibration parameters.

The drawing shows a sump, longitudinal section.

The lamella clarifier includes a housing 1 with an inlet diffuser part 2 and an outlet confuser part 3, which are equipped with grilles 4 and 5. At the end of the inlet pipe 6, a flange 7 is installed that is in contact with an elastic ring, for example, a rubber seal 8 of the disk 9. The flange 7 is installed with the possibility of its axial fixed displacement. The disk 9 is rigidly connected by a rod 10 with a package of shelves 11 having a transverse tilt. The stack of shelves II is hingedly suspended from the body on parallel rods x 12 of the same length. From the side of the confused part, the bag is preloaded by a spring 13 with an adjusting screw 14. The sump is equipped with a chamber 15 for collecting sediment and a spout 16 for draining the clarified liquid.

The proposed sump works as follows.

The initial fluid under pressure through the inlet nozzle 6 enters the chamber formed by the flange 7, seal 8 and disk 9. Under pressure of the fluid, disk 9 is displaced to form an annular gap between tank 7 and seal 8. The fluid with great speed flows through the annular gap , causes self-oscillations of the seal 8. The oscillations of the seal are characterized by the synchronism of the displacement of its surface in different areas, even in the case of uneven clearance along the length of the seal. This phenomenon contributes to the occurrence of significant pressure pulsations in the chamber. Pressure pulsations are sensed by the disk 9, which forms a variable force transmitted through the brush 10 to the stack of inclined shelves 11, causing them to vibrate on the rods 12.

The output of the annular gap in the diffuser 2, the flow of fluid significantly reduces the speed and the grating 4 evenly

distributed

by

the section of the sump.

Then the liquid enters the channels between the shelves 11, where the equality of GoHME in a

Korrekgor .. Obruchar Subscription

(compiler AND

Editor, 1. ZaitsevaTehred I. Veres

Zak 17433/8 Circulation 600

VNIIPI G () with darsgvenio o K lsteta according to inventions and discoveries at the State Science and Technology Committee of the USSR

113035, Moscow. G 35. nab. D. 4c) 1p () i-1) dstvipn1)-i.1dat1, Psk combine 1 patent. town of Uzh | () p (.1D. y. i. Gagarin. 101

Horizontal velocities over the cross section of the settling tank due to the lattice 5. The oscillations of the shelves 11 intensify the sedimentation and sliding of particles from the shelves in the transverse direction into the sludge chamber 15. The purified liquid enters the confuser 3 and is discharged through the nozzle 16.

The oscillation parameters of the shelves may vary. By adjusting the compression of the spring 13 with the screw 14, the oscillation frequency varies in the range of 10-120 Hz. The direction of oscillation of the shelves II is determined by the position of the flange 7. Thus, with the vertical position of the rods 12 of the shelf II, only longitudinal oscillations are experienced, which most strongly precipitate the sediment from the shelves and are therefore preferable when settling liquids with sticking impurities or with a high content of suspended particles. When the offset flange 7

0, the rods 12 occupy an oblique position, providing a transverse component of the oscillations of the shelves, which mainly intensifies the process of coagulation of suspended particles and their sedimentation.

The use of the proposed settling tank in comparison with the known ones allows to improve the quality of cleaning, the specific productivity of the exchanger and reduce its volume.

Claims (2)

1. A thin-layer settling tank, comprising a housing, 11LEDGING and a branch pipe, a package of inclined plates installed in a housing with the possibility of vibration and a rigidly connected with a package of inclined strips a baffle plate installed in the case opposite the inlet nozzle, characterized in that, in order to increase the efficiency of the settler and expand its operational capabilities by adjusting the vibration parameters, it is hinged to the upper parts of the body with rods of the same length and an adjustable spring mounted on the body, while the stack of shelves is connected to the spring and hingedly with hinges, and the reflective The campus is made in the form of a disk with an elastic ring placed along its perimeter from the side of the supply pipe. 2. A settling tank according to claim 1, characterized in that the inlet connection is provided with a flange mounted with the possibility of axial movement and engagement with a flexible ring. Micah in a itel i Korrekgor .. Obruchar Subscription