SU1397061A1 - Settling tank - Google Patents

Abstract

This invention relates to wastewater treatment, in particular, to septic tanks. and improves the performance of the device. The sump contains a housing, devices for water supply and removal of water and sediment, cylindrical partitions located in the upper part, between which thin-layer elements in the form of wavy ribbons with displacement of waves of adjacent tapes are placed by half a step. In this case, the tapes located between adjacent partitions have the same wave height, and the ratio of the wave step Ij of the next turn of the tape and the step of the previous turn of wave 1, depending on the distance from the center, is i t g RI "sludge

Description

(L

with

with so

The invention relates to the cleaning

sewage, and more specifically to septic tanks.

The purpose of the invention is to increase the capacity of the settler.

Figure 1 shows the sump, longitudinal section: figure 2 is a fragment of a wavy tape; on fig.Z - thin elements in the form of a spiral tape Q relative to the movement of the working flow

view from above; in FIG. 4, the same, in the form of concentric circles. ,

The settling tank comprises a housing 1, a supply tray 2, a central pipe 3, a baffle plate 4, a gap 5, a drainage channel 6, a discharge pipe 7, cylindrical partitions 8, a sludge pipe 9, thin-layer elements 10, made in the form of wavy ribbons located between partition-20 mi 8 at an angle of 45-60 ° to the horizons with the displacement of waves of adjacent ribbons by half a step, with the ribbons placed between two adjacent partitions 8 having the same wavelength B and 25 step of wave 1. increasing depending on the distance from the center sump When the waves are displaced by half a step, spaces 11 are formed, in cross section close to the circumference. When the tape is tapered as a spiral, spaces close to the circle are formed between the previous and next turns of the tape, which can be solved by increasing the step of the spiral turn to the step previous spiral coil. The ratio of 12: 1 (depends on the radius of distance from the center,, is determined by the condition that the number of waves of the previous and subsequent turns of the spirals must match.

The sump works as follows.

Drain water through the supply tray. 2 is fed into the central tube 3. When exiting through the gap 5, it changes the direction of movement and rises at an angle of 45-60 ° through thin-layer

1, follow-

   35

waves 1,

4Q

ka liquid. The clarified drain is collected by the drain chute 6 and is discharged from the housing 1 through the discharge pipe 7.

The sediment accumulating at the bottom of housing 1 is periodically removed from the sediment under the action of hydrostatic pressure through a sludge pipe 9.

The use of the proposed device improves the capacity of the settler in comparison with the known by 20–30%, simplifies the design of thin-layer modules and their installation, and expands the range of application of thin-layer modules in radial-drainage basins with a downward-upward flow of water.

Claims (1)

Invention Formula A sump, comprising a housing, thin-layer, elements located in the upper part of the hull, a neutral supply pipe for the source water, a device for draining clarified water and sediment, characterized in that, in order to increase the performance of the sump, it is equipped with concentrically mounted cylindrical partitions , thin-layer elements are made in the form of wavy ribbons located between partitions at an angle of 45-60. to the horizontal with the displacement of waves of adjacent ribbons by half a step, while the ribbons placed between adjacent ne partitions, have the same wave height, and the ratio of the wave step Ij the subsequent turn of the tape and the wave step of the previous turn of tape 1, depending on the distance from the center, is elements 10, made in the form of a wavy spiral tape (fig.Z) or in the embodiment in the form of concentric 13970612 circles (FIG. 4) of the wavy ribbons forming the space 11 between the previous and the next coils, close to the circumference. The wavy tape is enclosed between the cylindrical partitions 8. The sediment in the space 11 between the wavy ribbons moves in the opposite direction along five 0 5 o . . five Q 0 ka liquid. The clarified drain is collected by the drain chute 6 and is discharged from the housing 1 through the discharge pipe 7. The sediment accumulating at the bottom of the housing 1 is periodically removed from the sump under the action of hydrostatic pressure through the sludge pipe 9. The use of the proposed device improves the capacity of the settler in comparison with the known by 20–30%, simplifies the design of thin-layer modules and their installation, and expands the field of application of thin-layer modules in radial-drainage tanks with a downward-rising flow of water. Invention Formula A sump, comprising a housing, thin-layer, elements located in the upper part of the hull, a neutral supply pipe for the source water, a device for draining clarified water and sediment, characterized in that, in order to increase the performance of the sump, it is equipped with concentrically mounted cylindrical partitions , thin-layer elements are made in the form of wavy ribbons located between partitions at an angle of 45-60. to the horizontal with the displacement of waves of adjacent ribbons by half a step, while the ribbons placed between adjacent ne partitions, have the same wave height, and the ratio of the wave step Ij the subsequent turn of the tape and the wave step of the previous turn of tape 1, depending on the distance from the center, is 1: 1, R,. U 8 FIG. FIG Compiled by T. Ledneva Editor A. Motyl Tehred M. Didyk Proofreader N. Korol Order 2545/5 Circulation 642 Subscription to the USSR State Committee of Higher Education for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4