SU428766A1 - DEVICE FOR CLEANING GASES - Google Patents

Description

one

The invention relates to a technique for wet cleaning of gases from particles suspended in them and relates to adjustable devices for wet cleaning of process gases of various types of steelmaking, blast furnace and other industries, which allow to maintain a constant dust collection efficiency when changing the flow rate of gases to be cleaned.

A device is known for treating gases such as a venturi tube, comprising a diffuser and a confuser within which an axis is mounted axially for adjusting the flow area, provided with a device for moving it in a vertical direction.

The movement of the adjusting core and the rod is mechanically driven by a large power and is therefore characterized by considerable inertia.

In order to increase the sensitivity and reliability of the automatic adjustment of the flow area in the (proposed device, the device for moving the core is made in the form of a plate attached to the bottom of the core and located in a vessel with liquid installed in the diffuser.

The drawing shows the proposed device.

The device is made in the form of a Venturi tube with a confuser 1 and a diffuser 2. In the confuser, a core 3 is installed, to the bottom of which is attached a piston 4 located in the vessel 5 with fluid for hydraulic transmission. The confuser 1 is equipped with cameras 6 film oropshni, and before it is installed fairing 7.

In addition, the device is provided with a central supply of irrigating fluid through the pipe 8, passing along the axis of the core.

The upper surface of the core 3 is made in the form of a cone with a small angle, providing a uniform central nodachi irrigating fluid. The lower surface of the core is made in the form of an inverse cone and, together with the transition part, is one of the elements of the annular gap for the passage of gases.

Dangerous gases enter the annular gap formed by the confuser core. Irrigating liquid is fed into the gap through the film irrigation chamber 6 and the pipe 8, which is sprayed with passing gases acquiring a velocity of up to 100 m / s and more in the gap. There is a cleaning and cooling of gases. The optimal degree of purification of gases is maintained with significant fluctuations in their

consumption when moving the core. As the gas flow rate increases, the replication system supplies a special fluid, such as oil, under the piston 4. The core 3 with the piston 4 moves up, the collar gap for the passage of gases increases. Oil is withdrawn from the cavity of the vessel 5 located above the piston.

By reducing the gas flow rate, the oil is supplied to the cavity of the vessel 5 located above the piston 4.

Thus, in the proposed device, the required degree of gas purification with fluctuations in the flow rate of the incoming gas to the purification.

4 Subject of the invention

A device for cleaning gases like a venturi tube, including a diffuser and a confuser,

inside which axially a core is installed for adjusting the flow area, provided with a device for moving it in a vertical direction, characterized in that, in order to increase the sensitivity and reliability of the automatic adjustment of the flow area, the device for moving the core is made in the form of a piston attached to the bottom of the core and located in a vessel with liquid installed in the diffuser.

BbiKod gas

8xffi gas.

-JLfl Pi Lo Of /

4 ..- GNG /7/7/7/-..7X/7/ jg //

nook-pa