SU1514429A1 - Arrangement for removing noxious agents from the source of emission thereof - Google Patents

Description

The invention relates to devices for the removal of hazards, Vy2

shared in the rolling process of metals. The purpose of the invention is to reduce energy consumption and reduce metal consumption, the Device includes an exhaust umbrella 1, located below it with the formation of a suction gap insert 2 and inclined air nozzles located on the side ends of the rolled sheet. The device is additionally equipped with a collector 5 with nozzles 4, the output sections of which are directed in the direction opposite to the movement of the car. The collector 5 is installed with the possibility of rotation around the horizontal axis. The axis of the collector 5 is located from the axis of the umbrella at a distance of L = (1.0-2.0) V, where B is the width of the exhaust umbrella in the direction of hire. 2 Il.

with

Flying Liopropane Mill

L

Yyenil rolled

FI.1

514429 A1

1514429

The invention relates to devices for the removal of hazards emitted during the rolling of metals, and can be used in rolling mills of metallurgical enterprises.

The purpose of the invention is to reduce energy consumption by reducing the required amount of suction air aspiration air without reducing the effectiveness of hazardous removal.

Figure 1 shows the device, a general view; figure 2 - section aa in figure 1. 55

The device contains an exhaust umbrella 1, an insert 2 located under it with the formation of a suction slit, inclined air nozzles'3 located along the lateral ends of the rolled 20 sheet, a collector with nozzles 4 mounted above the surface of the rolled sheet. The nozzles 4 are directed in the direction opposite to the movement of the rolled sheet. Nozzles 4 25

combined by a collector 5, made with the possibility of rotation around a horizontal axis to change the angle of inclination (o /) of air nozzles 4 using a telescopic connection 30 (not shown). The collector axis 5 is located from the umbrella axis at a distance of L = 1.0–2.0 V, where B is the maximum width of the exhaust hood 1 in the direction of hire. 35

The location of the collector 5 in height above the surface of the rolled sheet is determined by the operating conditions.

The device works as follows.

In the process of passing the rolled sheet through the cage, ocapine is formed on its surface. Dross is removed from the surface of the sheet with pot-45 of the power of a descaler mounted in a cage (not shown). With this, some of the water evaporates and entrains the smallest particles of scale. Water vapor with scale particles rises above the surface of the rolled sheet and is discharged through

the suction gap in the exhaust umbrella 1, and from there into the Air-steam mixture cleaning system.

Compressed air is injected into the collector 5, and from it through the nozzles 4 in the form of a jet is fed against the movement of the rolled sheet, localizing the upward flow of dusty vapors and directing it to the suction zone of the exhaust hood 1. At the same time, the compressed air flows into the side nozzles 3 and the air jets flowing out of these nozzles, prevent the spreading of vapors with hazards on the sides.

The design of the proposed device allows you to more effectively remove hazard from the working area and, consequently, to improve working conditions. In addition, due to the localization of harmful emissions, the volume of suction air and energy consumption for suction are reduced, and by reducing the dimensions of the device, its metal consumption is reduced.

Claims (1)

Claim ABOUT A device for removing hazardous substances from the source of their release, containing an exhaust parasol with an outlet and inclined air nozzles located on both sides along the length of the source of hazardous emissions, characterized in that, in order to reduce metal consumption, reduce energy consumption and expand technological capabilities by providing the possibility of removal contamination from a mobile source of hazard release, the device is equipped with a collector installed with the possibility of rotation around its axis and equipped with nozzles, placed above the source of the hazard release, the nozzles are directed towards the umbrella, and the collector axis is located from the umbrella axis at a distance b = 1.02.0 V, where B is the maximum width of the exhaust umbrella along the direction of the hazard release source. 1514429 fie. 2