SU1277993A1 - Apparatus for clarifying liquid - Google Patents

Abstract

A DEVICE FOR LIGHTING the LIQUID, including a body with a sludge bunker, a partition housed in the body and dividing it into a flocculation chamber with a granular load and a settling chamber containing a package of inclined settling plates and a weave filtering load, polluted water inlet pipes and dry water. distinguishing with The fact that, in order to remove the filter's capacity and device performance due to the regeneration of the floating filtering load by mixing, the settling chamber is equipped with a loading ripper, made in the form of an endless traction chain with combs attached to it with teeth, while a row of parallel plates deployed relative to the plane of the pressure chamber, and the teeth of each pair of adjacent dies are angled at each other (L to a friend in a staggered order with the ability to interact the lower part of the floating loading. r S h to w

Description

The invention relates to a technique for purifying water from mineral substances of organic and mineral origin that are contained in it, with or without preliminary treatment of water with reagents and can be used in coal preparation and ore processing plants, as well as in surface water treatment from industrial sites. The purpose of the invention is to increase the filter capacity and device performance due to the regeneration of a floating filter charge by mixing. FIG. 1 shows the proposed liquid clarifier, a slit; in fig. 2 is a section A-A in FIG. 1; in fig. 3 - node 1nafig.2,2o top view. The liquid clarifying device comprises a housing 1 with a sludge hopper 25, a partition 3, housed in the housing 1, and dividing it into a flocculation chamber 4 with a granular load of contact coagulation 5 and a settling chamber 6 containing a package of inclined settling plates 7 and a floating filter loading 8 , nozzles enter contaminated water 9 and reagents 10, nozzles output purified water 11 and sediment 12, a ripper 13, on chains 14 of which the combs 15 are fixed with teeth 16, the device works as follows The original liquid through the nozzle 9 post Into the flocculation chamber 4, where the reagent is fed through the nozzle 10 simultaneously. In the flocculation chamber 4 on the granular loading of contact coagulation 5 flakes are formed from contaminants, which, when moving to the lower part of the settling chamber 6, are enlarged and fall into the sludge bunker 2. As a granular load of contact coagulation 5, a load with a specific weight less than one is used. The partially clarified liquid, under the interplate space of the package of inclined plates 7, is additionally freed from impurities and is fed to the floating load, mixed by the teeth of the comb 16, The execution of the teeth of the combs in the form of a series of parallel plates, rotated relative to the plane of strokes, and the arrangement of the teeth of each pope of adjacent dies at an angle to each other in a checkerboard order;: Yay give the floating load in the process of mixing, not only translational, but also transverse oscillator st. In the process of cleaning the liquid during its passage through the load, multiple particles collide with the surface of the loading grains. The fixed particles of contamination on the loading grains come into contact with new particles, which leads to an increase in the contamination layer and a decrease in the diameter of the threshold channels between the loading grains, i.e. to an increase in head loss in the lower layer of the filter. For a given program. selected in accordance with the permissible pressure loss, periodic mixing of the loading grains with the ripper combs is performed. As a result of the friction between the teeth of the grains and the loading grains between each other, the layers of contamination formed on the grains are torn off from their surface. The formed aggregates of particles of contaminants, the sedimentation rate of which is greater than the speed of the upstream flow of the liquid being cleaned, are moved to the bottom of the filter and through the inclined collecting plates 7 enter the sludge hopper 2, Purified water, the upper protective layer of the small loading layer passes, through pipe 11 it is removed from the device. When the floating load is regenerated after the filter cycle has been completed by the downward flow of wash water from the overfiltered space, the use of a ripper in the intensive mixing mode of the load grains dramatically increases the efficiency of washing them from sticking to the surface and accumulated in the pores of the contaminants. liquid in comparison with the known has a significantly greater performance due to mixing load, resulting in an increase in the use of the useful volume and the grain capacity of the filter, it is partially regenerated, which leads to an increase in the duration

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filter cycle. During the washing period, the process of regeneration, of the stirring filtering layer of the stirring layer, significantly affects the loading grains of the device as a whole.

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Claims (1)

DEVICE FOR LIGHTENING LIQUID, including a housing with a silt hopper, a partition placed in the housing and dividing it into a flocculation chamber with a granular load and a settling chamber containing a package of inclined precipitation plates and a floating filter loading, nozzles for the input of contaminated water and the outlet of purified water, characterized in that, in order to increase the dirt capacity of the filter and the performance of the device due to the regeneration of the floating filter load by mixing, the settling chamber is equipped with a loading cultivator, in the form of an endless traction chain with combs attached to it with teeth, while the teeth of each comb are made in the form of a series of parallel plates deployed relative to the plane of the comb, and the teeth of each pair of adjacent combs are staggered to each other with the possibility of interaction with bottom of the floating boot. SU_ 1277993 A1