SU1738373A1 - Cyclone dust separator - Google Patents

Abstract

The invention relates to the purification of the pneumatic medium from solid impurities and can be used in various technological processes for the processing of bulk and powdery materials to separate them from the transporting medium. The aim of the invention is to reduce energy consumption by utilizing the energy of the stream to be purified. The dust collector contains a cylindrical housing 1. The inlet pipe of the gas to be cleaned 2 is installed in the dust exhaust hole 3 rotatably and rigidly connected by inclined nozzles 10 with diametrically opposite openings 6 in the bottom wall of the annular chamber 7. At the periphery, the chamber 7 has tangential nozzles. Under the influence of the flow of gas to be purified exiting the nozzles, the chamber rotates in the direction opposite to the direction of rotation of the flow. The cleaned gas, the outlet through the axial exhaust pipe 4, unwinds the nozzles 10. 3 Il.

Description

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The invention relates to the purification of the pneumatic medium from solid impurities and can be used in various technological processes for the processing of bulk and powdery materials to separate them from the transporting medium.

To improve the known cyclone structures, it is advisable to retrofit them with nodes that eliminate the harmful effects of factors that reduce the efficiency of media separation and ensure the utilization of the energy of the separation streams before dissipating it from the walls of the cyclone apparatuses.

A cyclone dust collector is known, comprising a cylindrical housing with an inlet, an outlet and an exhaust nozzle, connected to a supply line, along which the axis of the exhaust nozzle is mounted a blade rotor in the form of a row of impellers with a decreasing downward diameter.

A disadvantage of the known device is the placement of the rotor axis inside the exhaust pipe and the use of an additional energy source to rotate it with the impeller, intensifying the separation process by destroying the swirling upward flow. In this case, the energy losses in the cyclone apparatus increase inadequately with the increase in the efficiency of dust collection. Obviously, the complexity of the design of the device, the need for supplying additional electricity to its design, carrying out certain measures for labor protection, limiting the scope of the device. It is advisable to simplify the design by replacing the impeller drive, transfer its functions to another structural element, ensuring the destruction of the upward flow due to the energy of the medium without additional power equipment.

The purpose of the invention is to reduce energy consumption by utilizing the energy of the stream to be purified using it to increase the efficiency of the separation process.

FIG. 1 and 2 - cyclone dust collector mutually perpendicular longitudinal sections; in fig. 3 - the same, top view.

The cyclone dust collector contains a cylindrical housing 1, a branch pipe 2 for introducing the gas to be cleaned, a lower dust outlet hole 3, an axial exhaust pipe 4, connected to the supply line 5 through a pipe 2, which can be rotated around the axis of the cyclone, while the pipe 2 is connected by two inclined pipes with a diameter opposite holes 6 in the bottom wall of the annular chamber

7 with tangential nozzles 8 on the periphery, while the camera 7 is fixed on the exhaust pipe 4 by means of a bearing 9.

Cyclone dust collector works as follows

The mixture fed into the housing 1 through the nozzle 2, the orifice 3 min, rises from the supply line 5 to the openings 6 in the annular chamber 7 and under the hydrodynamic impact that occurs when the mixture leaves the tangential nozzles 8, twists the chamber 7 and the nozzle 2 on the bearing 9 in the direction opposite to the rotation of the mixture in the cyclone body 1, which destroys the ascending swirling flow in the center of the apparatus with minimal impact on the downward twist in its conical part. The separated particles are removed through the opening 3 into the storage bin, and the purified medium is ejected through the exhaust network to continue the process.

The excess energy of the feed stream is used to tighten the frame formed by the bottom wall of the annular chamber and the inlet port in the form of a dovetail (tee). The loss of the speed of movement of the particles separated from the flow relative to the walls of the cylindrical housing is compensated by telling them additional centrifugal acceleration in the annular chamber and relieves a blow to the cyclone wall, and also reduces the energy dissipation by the amount used to twist the chamber and the gas inlet, reduces km. with. cyclone by decreasing the velocity in the hull. The need for additional sources of energy to destroy swirling upward flow is eliminated.

Claims (1)

Invention Formula A cyclone dust collector containing a cylindrical housing with a bottom dust outlet, an axial exhaust manifold and a purge gas inlet, characterized in that, in order to reduce energy consumption by utilizing the energy of the stream being cleaned, it is equipped with a flow distributor made in the form of an exhaust manifold arranged concentrically by means of a bearing in the upper part of the casing of the annular chamber with tangential nozzles on the periphery, the inlet of the input gas to be purified is installed in the dust outlet zmozhnostyu rotation and two inclined nozzles connected with diametrically opposite openings in the bottom wall of the annular chamber flow distributor. FIG. five