Coagulator

 

(57) Abstract:

The invention relates to equipment for recovery of metals and other impurities from the waste water, process fluids and can be used in metallurgical, chemical, food and other industries. The inventive coagulator includes a housing mounted for rotation, with a pipe for supplying the purified solution and purified water, drive, support, Foundation. Inside the coagulator coaxially in its housing are cylindrical cassette for loading reagents. The body of the coagulator is equipped with a guide along the inner surface, and the cartridges have a return groove. The height of the cassette is a multiple of the length of the body, and the diameter is 0,96 - 0,97 internal diameter of the coagulator. The feed solution is fed through the inlet and passes successively through all tapes are filled with reagents. Qualitative and quantitative composition of the reagents in the cassettes may be different depending on the quality of the purified solution. When this occurs a number of electrochemical and precipitation processes leading to the change of impurities from solution to a solid residue. Purified water is supplied to the filtering. In repudio in one device. 1 C.p. f-crystals, 2 Il.

The invention relates to equipment for recovery of metals and other impurities from the wastewater (SW), technological solutions and can be used in metallurgical, chemical, machine building, food and other industries.

Known apparatus for recovery of metals from solutions in the form of a horizontal drum mounted on support rollers with the drive, loading and unloading devices; on the inner surface of the drum, lined with copper, there are shelves, and the internal volume of the drum by the grid is divided into two zones: the zone of placement agents and sediment and the area of ferritization (enlargement) of sediment, which is equipped with magnets [1].

The disadvantage of this design is the inability to accommodate heterogeneous reagents for simultaneous purification of waste water from the impurities of different origin (organic and inorganic), the presence of fixed bounding mesh, preventing the repair and unloading. The installation of the magnets in the area of ferritization promotes the "sticking" of the resulting ferrite on the body, thereby reducing the number of the Ki ST (coagulator), comprising a housing with a loading and unloading device, drive, support and the base, and loading and unloading device made in the form of flexible pipelines, hermetically United with the body; the body is made of several metal shells of the bimetal supplied in connections with insert in the form of a ring with attached plates; boot device provided with a coaxially-located pipeline to supply oxygen inside the device [2].

The shortcoming of this coagulator is the lack of possibilities for accommodation in the same apparatus heterogeneous composition of the reagents required for the purification of solutions of impurities of different origin, cumbersome loading and unloading devices, as well as the lack of integrity of the enclosure, which may cause during operation of the coagulator depressurization of the connection.

Closest to the claimed invention to the technical essence and the achieved result is coagulator drum KB-1, containing a horizontally positioned casing mounted for rotation with loading and unloading device, a pipe for supplying the purified solution and conclusion the parathas is the inability to simultaneously accommodate different composition of reagents, eliminating the waste water from the impurities of different origin at one stage.

To achieve a given effect purification serial installation of two or more samples with different formulations of reagents, which significantly increases the cost and duration of the purification [4].

The task of the invention is to provide a simplified and manufacturing coagulator, in which you can achieve the effect of wastewater impurities of different origin in a single phase, reducing the duration by reducing the number of stages and the cost of the cleanup process, as well as reducing operating costs.

This object is achieved in that in the coagulator comprising a housing mounted for rotation with the nozzles for supplying the purified solution and withdrawing purified water, drive, support, base, according to the invention in the internal volume of the coagulator coaxially his body placed in the cassette for loading reagents, building coagulator inside provided with a guide along the inner surface and has a detachable base, connecting with them by means of the flange.

In addition, tapes for download is as coagulant and a diameter at the base, equal to 0,95 - 0,97 internal diameter of the coagulator; the side walls of the cassette is made of wire mesh on the frame of the ribs, and a solid base tapes are on one side of the bounding stops, which is a continuation of the ribs, and on the other hand - hole at the centre of the base.

Perform body coagulator in the form of a cylinder with the same base without the extra parts shelves for mixing, dividing walls, rings, loading and unloading devices, etc., allows to simplify the manufacturing process of the device, to reduce the metal content of the product by reducing its mass.

In addition, placement in the internal volume of the apparatus coaxially his body cassettes for loading reagents allows you to vary the composition of the reagents, both in qualitative and quantitative terms. The use of consecutive interchangeable cassettes different in composition reagents, components galanopoulou, allows the process of cleaning solutions from various impurities in one device that reduces the time and cost of the technology.

In addition, the shape of the cassettes in the form of hollow cylinders pozwoli mesh on the frame of the ribs provides a free contact of the purified solution with reagents, and the presence of a solid base with one hand and the bottom with a hole in the center on the other hand minimizes the contact of different reagents with each other. Restrictive stops, which is a continuation of the ribs and located by a solid Foundation of cassettes allow you to create between them a gap needed to promote the purified solution along the length of the coagulator.

In addition, for mixing reagents and process speed cassettes with coagulator, his body is equipped with a guide along the inner surface of a cassette made with a corresponding mating groove.

In addition, for the loading and unloading of the cassette case coagulator has a detachable base with flange connection, so there is no need for accommodation of special devices for loading and unloading reagents.

In Fig. 1 shows coagulator, side view, Fig. 2 - cartridge design coagulator.

Coagulator consists of rotary body 1, made in the form of a drum, base 2, band 3, drive 4, the supports 5, devices for feeding the purified solution 6 and the output of purified water 7 as pipes, tapes 8 installed with the possibility of the haunted lugs 10, passing from the ribs 11 which are welded using heat sealing, detachable base 12 and pipe to drain water 13.

As a reagent in the samples of this type (galvanomagnetic) using a mixture of materials with different values of electrochemical potentials, for example a mixture of iron (steel shavings, cutting, etc. and coke, iron and copper, aluminum and coke, etc., by contact of the particulate material between a treated solution, and oxygen leads to the formation of a short-circuited galvanic cell (galvanic couples), in which the reagent with the most negative value of the electrochemical potential is subjected to anodic dissolution. Due to the processes there is a change in acidity of the solution and the formation of oxyhydrates, which sorbents impurities. Impurities of different origin (organic compounds and inorganic cations and anions) are selectively extracted from solutions at different sorbents produced by selection of the composition of the galvanic couples and ratio of reactants.

The coagulator is as follows. Before you begin tape 8 coagulator loaded with a mixture of reagents. Depending on the quality of the example you can download the first two cassettes with a mixture of iron-coke, two subsequent mixture of the aluminum-Cox.

The installation of the cassette 8 in the housing 1 is carried out through the detachable base 12, combining the guide 9 with the response part of the cassette, thereby rotating together with the case. Cassettes have a solid base with restrictive supports 10 in the direction of the inlet pipe of the drum 6. Next is the mounting of the detachable base of the coagulator 12. The number of tapes must be a multiple of the length of the body of the coagulator, and their diameter must be 0,95 - 0,97 of the size of the internal diameter of the shell.

After the pre-aeration, feed solution with oxygen in the air is fed through the feeder (inlet pipe) 6, further flow of the solution, crashing on the blank wall at the cassette 8, enters the housing 1. The design of the cartridges allows you to create a flow of solution along the length of the coagulator in the direction shown in Fig. 1 by the arrows. After the drive enable 4 case 1 together with the cassettes 8 starts to rotate around the axis, while in the working area of cassettes flow electrochemical and physico-chemical processes that can extract impurities from solutions involving clicks the sustained fashion processes when passing through the body of the coagulator from the apparatus through the device 7 comes out purified water with a suspension of oxyhydrates, which further goes to sedimentation and filtration for purification from mechanical impurities (not shown).

As depletion download coagulator is stopped for a routine inspection, accompanied by the replacement cartridges. Complete removal of water from the coagulator in order maintenance carried out through the pipe 13.

Providing coagulator cassettes, through which the loading apparatus reagents, allows you to change the composition of the materials galvaneal, and they are designed to provide a large contact of purifying water flow to the surface of the reactants.

The coagulator is industrially applicable apparatus, simple in design and manufacture.

Coalescers are used in wastewater treatment in the chemical, metallurgical, food and other fields.

Sources of information

1. A. S. USSR N 841369, class C 22 B 11/12.

2. RF patent N 2048853, class B 01 D 21/08, C 02 F 1/52.

3. Coagulator drum KB-1. Instruction manual QC 227.00.003. IE/SKB. Kazmekhanobr, 1987.

4. Dzubinski F. A., Feofanov C. A., Zhdanovich L. P. //Col. Metallurgy. -1990. -N 8. - S. 66-68.

1. The coagulator comprising a housing, ustanovleny, the Foundation for the installation of bearings and actuator, characterized in that in the internal volume of the coagulator coaxially with his body placed in the cassette for loading reagents, and the body of the coagulator inside provided with a guide along the inner surface and has a detachable base, connecting with them by means of the flange.

2. Coagulator under item 1, characterized in that the cassette for loading reagents made in the form of hollow cylinders with a return groove for forming and height that is a multiple of the length of the body coagulator in diameter at the base, equal to 0,95 - 0,97 internal diameter of the coagulator side walls of the cassette is made of wire mesh on the frame of the ribs, and a solid base tapes are on one side of the bounding stops, which is a continuation of the ribs, and on the other hand - hole at the centre of the base.

 

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SUBSTANCE: proposed clarifier has cylindrical housing, starting water, coagulant solution, reagent solution and flocculant solution supply pipes, air separator equipped with nozzle provided with radial branch pipes with rectangular elbow directed upward and fitted with cone bell mouth; clarifier is also provided with sludge compactor and clarified water discharge unit. Mounted on cone bell mouths of air separator above water level is vertical cylindrical branch pipe with unit secured on its side surface and used for cascading escaping water jet; cascading unit is made in form of horizontal disk with shells mounted concentrically relative to branch pipe. Height of each subsequent shell is lesser than that of previous one; upper edges of shells are provided with outer circular horizontal shelf. Cascading unit is made in form of tiers of horizontal disks secured on side surface of branch pipe. Upper surface of each disk is provided with circular bead; diameter of outside circle of this bead is lesser than diameter of disk circle.

EFFECT: enhanced clarification of water.

3 cl, 4 dwg, 1 tbl

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