SU1375279A1 - Filtering plant - Google Patents

Abstract

The invention relates to filters with granular loading and allows to simplify the design and operation. The installation is divided into filtering sections 1 with granular loading, equipped with channels 4 and 5 for supplying initial and removal of wash water, respectively, equipped with a horizontal partition 6. The central collector is divided by additional partitions 8 and 9, into three floors: a wash channel is located in the upper section on average, the central water distribution chamber; in the lower, the channel 12 for draining water from the installation to the sewer system and channel 11 for draining the filtrate. The baffles 6.8 and 9 are provided with bottom valves 16-20 for controlling the flow of water. When the valve 17 is open, water from channel 4 enters tray 7 and into the section. The filtrate is collected by drainage pipes 21, discharged into channel 13 and when valve 16 is open enters channel 11. When flushing, wash water from channel 12 through the valve is supplied to channel 13 and drainage pipes 21. The flushing water is discharged through tray 7 through valve 18 channel 5. 1 c.p. f-ly, 2 ill. (L

Description

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The invention relates to the field of filtration and can be used for the treatment of natural and waste waters.

The purpose of the invention is to simplify the design and operation of the installation.

Fig. 1 shows the filtration unit; a cross-section in Fig. 2 is a section A-A in Fig. 1.

The installation contains a series of filters with a granular load, forming filter sections 1, bounded by two inner walls 2 and two outer walls 3 to which the channels 4 adjoin to supply the source water and the channels 5 to drain the wash water. The channels are provided with an additional horizontal partition 6, which is the base of the collecting-distributing trays 7. A central collector is placed between the inner walls of the 2 sections, divided by additional horizontal pipes

with partitions 8 and 9 for three Russ i canals. The lower channel is provided with a longitudinal vertical partition 10 dividing it into two channels: channel 11 for draining the filtrate and channel 12

for draining water from the installation to the sewer. The upper channel 13 serves to supply wash water, the middle channel 14 is provided with a transverse vertical partition 15 with the formation of a sealed water distribution chamber in each section.

On additional partitions 6.8 and 9, means are installed for controlling the flow of water, made in the form of bottom valves 16–20, the control rods of which are brought out above the installation housing.

In the lower part of the filters placed pipe 21 of the drainage system. The installation is located on foundation 22.

Filter installation works as follows.

The source water is supplied to the channels 4 and, when the ground valves are open, the valves 17 placed on the additional partition 6, enter the collecting and distribution trays 7, where it is evenly distributed along the length of the trays and is poured into the filter sections 1 with loading through the walls 3. Pass through the loading layer, the water is cleaned, the filtrate is collected with the help of drainage pipes 21 and enters a hermetic water dispenser

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A chamber located in the central collector and formed using additional horizontal partitions 8 and 9 and a transverse vertical partition 15. With the open bottom valve 20, water from the chamber enters channel 11 to drain the filtrate located in the lower floor of the central collector.

When the filter installation is washed, the wash water through channel 13 when the bottom valve 19 is open enters the water distribution chamber and then through the drainage pipes 21 enters the filter sections 1, then into the collection and distribution tray 7 and when the bottom valve 16 is open It enters the channel 5 of the washing water outlet.

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if necessary, the water from the filter sections can be diverted through the channel 12, placed in the lower floor of the central collector, into the sewer system with the bottom valve 18 installed on the partition 9 open.

The filter unit allows filtering in the upward direction of water movement. In this case, the supply of source water takes place in channel 11, and the filtrate is discharged through channel 4.

Claims (2)

1. A filter unit containing a series of filters divided by mutually perpendicular partitions into sections filled with granular load, a central collector for draining filtrate and supplying wash water, placed between the filters and equipped with horizontal partitions, channels for supplying the source water and draining the wash water adjoining to the outer side walls of the filters, and means for controlling the flow of water placed in each section, characterized in that, in order to simplify operation, the central collection The op is provided with additional horizontal partitions dividing it into Rus, the middle of which is provided with a transverse vertical partition with the formation of a sealed water distribution chamber in each section, the lower one is divided by a longitudinal vertical partition into two channels, the channels for supplying the source water and discharging the wash water are provided with an additional horizontal discharge. a means of regulating the red partitions above these channels and in the central collector above the sealed chamber and channel E for discharging filtrate and water in a sewer. 2. Installation according to claim 1, characterized in that, as means for controlling flow in water courses are installed on additional bottom valves installed. 5 4 / 4-L 5 h Figg