SU23979A1 - Apparatus for external blowing economizer tubes - Google Patents

Description

In the proposed apparatus for external blowing of economizer pipes, moved by means of a running carriage, steam is supplied through valves, the opening and closing of which are performed automatically by levers with counterweights, into the blowing ring with the blowing tubes screwed into it, which is rotated by means of a screw handwheel through gears; to move the undercarriage of the apparatus with the same handwheel, onto the shaft of the last one. The second is a conical gear that, with the aid of a knob, can be engaged with a gear that sits on the shaft with a pulley connected by a cable drive to the driving pulley of the trolley.

In FIG. 1 shows the apparatus in front; FIG. 2 - the same side; FIG. 3 - from above; FIG. 4 — drive mechanism, side view; FIG. 5 - the same, behind; FIG. 6 - the same, from above.

The apparatus for external blowing of the AconogZgizer pipes consists of an extended stretch ring 10 (Fig. 1-3), in the lower part of which are blown // purge tubes having bottom blind ends, equipped with holes 12. The ring 10 is equipped with steam supply valves 10 the opening and closing of which is carried out automatically by the levers 23 with counterweights 14. In its

the short axis of the ring 10 has a jumper, where the nut 13 of the lifting screw 5 is installed, which is installed in the lining 9 of the frame frame 2, and the extreme edges 25 serve as guides for the purge ring 10. The frame 2 is rigidly connected to the bases of the b carriage having two axes 7 with rollers rolling along the inner flanges of the beams 5 located at the required height along the economizer; the rear axle is equipped with a driving pulley 5.

At the bottom of the frame 2, a drive mechanism (Fig. 4-6) is fixed with two mutually perpendicular shafts 15 and 19. The shaft 15 is equipped with a handwheel 18, which causes the lifting screw 5 to rotate using the bevel gear 16 mounted on it and gears 4 mounted on the screw 5. The shaft 15 has a longitudinal movement along the axis of the bearings by moving the latch handle 22 and is provided with an additional bevel gear 17 capable of being engaged with the gear 20 sitting on the same shaft 19 with the pulley 21 connected by a cable drive with a pulley 5.

By turning the knob 22, the latches engage gear 17 with gear 20 and rotate the handwheel / 5, by cable transfer 21-S, to move the whole apparatus forward or backward along the economizer, depending on the direction of movement of the handwheel.

FIE