SU1428421A1 - Apparatus for purifying liquids from suspended impurities - Google Patents

Abstract

The invention relates to devices for cleaning liquids from suspended impurities and improves productivity by increasing the absorption capacity of the filter material. The device consists of dispensers of bulk filter material 2 and liquid filter material 5, conveyor 3 placed under them with a perforated working body, rotary ripper 9 mounted on guides 11 with the possibility of reciprocating movement along them and movable relative to the upper branch of the conveyor 3 and obliquely towards it, the Rotary cultivator is made, for example, in the form of a cylindrical drum with teeth and, having carried out a complex movement (rotational and reciprocating per se slant guides), loosens the filtering material to the depth of change of the initial operational properties, involving almost the entire layer in the filtration process. 2 hp f-ly, 2 ill. (Ls

Description

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The invention relates to devices for filtering liquids, mainly for dewatering sewage sludge, and can be used in rural and communal households, as well as in enterprises whose waste products are sludge with organic inclusions.

The purpose of the invention is to increase the productivity due to the increased absorption capacity of the filter material.

FIG. 1 schematically shows a device for cleaning liquids from suspended impurities; Fig, 2 is the same, top view.

A device for cleaning liquids from suspended impurities consists of a container t for filtering material with a dispenser 2, a conveyor 3 located under it with a perforated working member, a container 4 for a contaminated liquid with a dispenser 5 mounted above the conveyor 3, a vacuum chamber 6 for a filtrate of contaminant known fluid located under the working branch of the conveyor, which is connected to a vacuum pump by means of a pipeline and a bone 7

A rotary ripper 9, made in the form of a cylindrical drum, with teeth 10, is mounted with the possibility of reciprocating movement along guide rails 11 fixed on the frame and forming an angle with the working branch of conveyor 3 in its unloading part, while guides 11 are installed movable to the working branch of the conveyor 3.

The rotary ripper 9 is rigidly fixed on the shaft 12, on the ends of which the wheels 13 are rigidly fixed, for example, toothed wheels. In order to carry out the process of reciprocating motion, the rotary cultivator 9 is connected by means of a rod 14 and a driving wheel 15 to an electric motor 16. Levers 17 are placed on the rod 14.:: For turning on the end ™ driver 18, which serves to change the direction of rotation of the electric motor 16 the moment when the rotachonic ripper 9 is located at the end points.

The device works as follows.

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From the tank 1, the dispenser 2 onto the moving perforated conveyor belt 3 is placed with a uniform layer of filter material, such as sawdust. On. this layer from the container 4 dispenser 5 serves the contaminated liquid. The filtrate under the force of gravity and vacuum created by the vacuum pump 8 ,, flows into the vacuum chamber 6, and then through the pipeline.- into the tank 7,

During the filtration process, the pores of the upper layer of filter material are primed, which dramatically reduces the filtration performance and may lead to the termination of the filtration process. The motor 16 is turned on simultaneously with the drive of the conveyor 3 and through the driving wheel 15 and the rod 14 moves the rotary cultivator 9, which performs a reciprocating motion, interacting with the wheels 13 with the guides 11, and rotates on the shaft 12,

The tooth 10 interacts with the layer of filter material as follows. At the loading end of the conveyor, the teeth 10 loosen the layer to an insignificant depth, since the filtering material has not yet managed to lose its absorption capacity but as it approaches the discharge end as a result of an intensive process of friction, which is provided by the operation of the rotary rye 9 and the vacuum pump 8 , the degrading ability of the layer is lost, and due to the inclination of the Yush, their 11 to the conveyor surface, the tooth 10 looses the layer to the full depth of the loss of the original properties, restoring c by direct zepoglotitelnuyu ability povsha layer and device performance.

 The change of the direction of linear movement of the rotary ripper 9 is carried out as follows. As the rotary loosener 9 moves along the deflating 11, the XK switch 18 approaches one of the levers 17, which turn it off; By changing catvibiM the direction of the motor 16 and the direction of movement of the rotary ripper 9.

The advantage of the proposed device is that the rotary cultivator, which is difficult to

movement (rotational and reciprocating) along inclined guides, loosens the filtering material to a depth of change in the initial operational properties, involving almost the entire layer in the filtration process, which completely eliminates the possibility of termination of the filtration process and increases production. Apply a device by 20–25% (depending on the type of filter material), increase the filtering capacity of the layer, and increase the effectiveness of retaining suspended weights to 95%. The use of the filtering capacity of the material throughout the thickness of the layer leads to a decrease in the consumption of this material. The use of organic materials as a filtering layer (peat, straw, sawdust, etc.) significantly improves the quality of the fertilizers obtained in this case by increasing the dry matter concentration of the sewage sludge in the mixture. The installation of guides for the movement relative to the conveyor surface makes it possible to adjust the thickness of the loosening layer of filter material, depending on its properties and the properties of the medium being filtered.

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1. A device for cleaning liquids from suspended impurities, containing dispensers for bulk filter media and. liquid filtered material, a conveyor placed under it with a perforated working body, characterized in that, in order to increase productivity due to the increased gripping capacity of the filter material, i

. The guide rails are inclined to the upper branch of the transport A at the unloading part.

2. A device according to Claim 1, which is tlicit in that the rotary cultivator is complete, Hanpimep, in the form of a cylindrical drum with teeth.

3. A device according to claim 1, characterized in that the guides are mounted with the possibility of movement relative to the upper branch of the conveyor.

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Claims (3)

Claim 1. A device for cleaning liquids from suspended impurities, containing dispensers for bulk filtering material and. liquid filtered material, a conveyor placed under it with a perforated working body, characterized in that, in order to increase productivity by increasing the dirt-absorbing ability of the filter material, it is equipped with a rotary cultivator mounted on rails with the possibility of reciprocating movement along them, while the guides are installed obliquely to the upper branch of the conveyor at its unloading part. 2. The device according to claim 1, characterized in that the rotary cultivator is made, for example, in the form of a cylindrical drum with teeth. 3. The device according to claim 1, characterized in that the guides are mounted with the possibility of movement relative to the upper branch of the conveyor.