UA28495U - Hydraulic cyclone - Google Patents

Abstract

A hydraulic cyclone, in which continuous cylindrical chamber from one or several tangential caps of admission with gates is located upstream of cylindrical perforated chamber, a housing is made with inclined bottom and is equipped with branch pipe, at output of which and at the output of bunker the gates for sludge discharge are installed, and at the output of the pipe of smaller diameter and at the output from the volate the gates for draining of clarified water are installed.

Description

Description of the invention

A useful model belongs to metallurgy and can be used for wastewater treatment, when it is necessary to separate 2 suspended substances into fractions by size.

Currently, pressure hydrocyclones are widely used for wastewater treatment at various industries. Despite the diversity of wastewater content, hydrocyclones are structurally identical and differ only in size, which is determined by the productivity of the initial suspension consumption. Wastewater treatment. I.V. Skirdov, V.G. Ponomarev - M. Stroyizdat, 1975, 176bs. This device consists of 70 cylindrical and conical parts. There is a tangentially located nozzle on top of the cylinder part. The conical part ends with a slurry nozzle. A drain nozzle is located along the axis of the cylinder part. The principle of operation of such cyclones is based on the action of oddentric forces on the suspended particles in the suspension, which through the nozzle of the cyclone inlet is tangentially fed into its cylindrical part, where it will acquire a rotational movement around the axis of the cyclone, as a result of which material particles that move are collected on its walls down the 72 conical part of the cyclone and the enriched pulp drains through the sludge nozzle, and the clarified water leaves the cyclone through the drain nozzle.

The disadvantage of this design of cyclones is that they can perform only two functions: 1 - water purification from mechanical impurities; 2 - enrichment of the pulp with mechanical impurities of all fractions by size. It is not possible to produce separation by particle size in such cyclones, however, some technologies require separation of the suspension content by fractions, for example, in the alumina production of aluminum plants.

The closest in terms of features to the claimed hydrocyclone is a cyclone for dry methods of cleaning gas from dust. | Declaration patent of Ukraine for the invention Mob4437, cl. В04С5/10, 2004|.

The dust collector consists of a housing, perforated chambers placed coaxially with the housing, a hopper for collecting dust, an inlet pipe and an outlet pipe. A curl and an outlet nozzle are installed on the outlet pipe. fri")

A central pipe is placed along the axis of the body, connected to the venturi pipe, which is installed in front of the inlet pipe. A chamber in the form of a truncated cone is installed in the lower part of the dust collector, connected to the lower perforated chamber, which is combined with another conical chamber in the form of a truncated cone.

This dust collector can be modernized for wastewater treatment, but there will be no enrichment of the pulp with mechanical impurities of a given size. Gee!

The basis of a useful model is the task of developing a hydrocyclone, in which, due to new structural elements, the enrichment of the pulp with mechanical impurities of a given size, M, and the increase of water clarity are ensured. with

To solve the task in a hydrocyclone, which contains a cylindrical body, along the axis of which there are 3o cylindrical perforated chambers, the lower part is connected to the base of the conical chamber, two central coaxial pipes are placed inside the chambers, the pipe with a larger diameter at the outlet is connected to a curl , a conical chamber and a pipe of a smaller diameter is connected in the lower part to the hopper, according to a useful model, in front of the cylindrical perforated chamber there is a continuous cylindrical chamber with one or more "4, tangential nozzles with inlet valves, the body is made with a sloping bottom and equipped with a nozzle, valves for draining sludge are installed at Z 70 outlet and at the outlet from the bunker, valves for draining clarified water are installed at the outlet from the pipe with a smaller diameter and at the outlet of the coil. z» The scheme of the proposed hydrocyclone is presented in Figure 1.

The hydrocyclone consists of a cylindrical perforated chamber 1, above which there is a continuous cylindrical chamber C with a tangentially located inlet nozzle 4, and below a cone 5 is connected to a hopper - sludge collector 6. Along the axis inside the cylindrical perforated chamber 71 there is a pipe 7 with a larger diameter, which is connected from above with a curl 8 and a pipe of smaller diameter 9, which is connected at the lower end to

Ge | the cavity of the hopper - sludge collector 6, and the upper one - with the valve of the drain pipe 10. Externally, the cylindrical perforated chamber 1 is surrounded with a gap by the cylindrical body 11 with an inclined bottom 12, which is hermetically connected to the cone 5 and is provided from the bottom with a drain sludge nozzle 13 with a valve 14 Coil 8 and hopper (Te) 20 sludge collector b are connected at their ends by valves 15 and 16, respectively. The hydrocyclone is installed vertically on the frame 17. sl The principle of operation is as follows. The initial suspension is fed tangentially through the inlet nozzle 4 into its continuous cylindrical chamber C, where it acquires a rotational movement around the axis of the chamber, as a result of the action of internal forces, material particles of larger fractions are collected on its walls, and small fractions 22 remain in suspension. c The movement of the swirling suspension flow is carried out from top to bottom. Entering the perforated chamber 1, the enriched suspension containing material particles of a given fraction flows through the holes 2 into the cavity formed by the outer cylindrical body 11 and the inclined bottom 12, and through the nozzle 13 and the valve 14, the created pulp is directed into the drainage sludge pipe. The remaining part of the clarified suspension, containing material particles of other fractions, 60 through the annular gap formed by the pipes 7 and 9, through the curl 8, goes through the valve 15 into the drain pipe, and the other part of it, moving along the cone 5, enters the hopper - the sludge collector 6, from where through valve 16, the enriched pulp flows into the sludge pipe, and the clarified water leaves the cyclone through pipe 9 and valve 10.

The desired results can be achieved by opening or closing the valves.

The use of the proposed hydrocyclone will make it possible to obtain more clarified water and separate valuable mechanical substances of a given fractional composition from the suspension.

Claims (1)

The formula of the invention I psch. - . . Hydrocyclone, which contains a cylindrical body, along the axis of which there are a cylindrical perforated chamber, the lower part is connected to the base of the conical chamber, two central coaxial pipes are placed inside the chambers, a pipe with a larger diameter at the outlet is connected to a curl, a conical chamber and a pipe of a smaller diameter connected in the lower part with the hopper, which differs in that in front of the cylindrical perforated chamber /o there is a continuous cylindrical chamber with one or more tangential intake nozzles with valves, the body is made with a sloping bottom and is equipped with a nozzle, at the outlet of which and at the outlet of the hopper valves for draining sludge are installed, and valves for draining clarified water are installed at the exit from the pipe of smaller diameter and at the exit from the coil. that 2 IF) (o) « (ee) p - and? name) (ee) sh» se) sl 60 b5