SU58467A1 - Fitting to furnace grates for lifting and breaking slag - Google Patents

Description

In order to facilitate slag removal, 3 furnace devices, both stationary and mobile (steam furnaces), have already been proposed to crack the slag layer on the grate, for example, in the case of burning highly slagging coals, using rotatable knives The doors between the grates are below the grate level and controlled from the driver’s booth. However, in such devices, as the knives are raised, the slag and remnants of burning fuel move to the adjacent row of knives, as a result of which the grate is exposed and the furnace is cooled, which is permissible only when the furnace stops operating. This device aims to achieve a thorough refreshment of the furnace during its operation by removing the fused slag, from under the burning layer of fuel, preserving burning fuel and small parts of the slag on the grill, as well as ensuring more reliable operation of the knives

eliminating the possibility of their wedging and bending, while maintaining the established live cross-section in the grate. To this end, according to the invention, the knives are arranged in longitudinal split beams, which are provided with openings for the passage of the knives as they move.

In FIG. 1, 2, and 3 depict a general view of the installation of knives in a split beam (in three projections); FIG. 4 and 5 show the arrangement of the device with the fixed and swinging grate.

The proposed adaptation to furnace grates for lifting and breaking in slag consists of several split beams / (Fig. 1-3), approximately from two to four pieces, having in cross section, for example, the shape of a double beam grate and stacked along the length of the furnace level with grates.

On beams / rotary mounted on rollers of curvilinear shape, knives-pushers 2, which are in normal position flush with beams. Windows 5 are provided for the free movement of the knives in the beams (the trajectories of movement of the knives are shown in dotted lines in Fig. 1). The knives are controlled from the driver's booth by means of a drive 5. To raise and slag the slag, knives 2 are driven up by a drive from the grate tilted to the leveling hole. At the same time, large pieces of slag are provided at the top of the burning layer and are easily removed using a cutter to the rear corners of the furnace or to the ash pan through hatches 4 (Fig. 4 and 5), depending on the conditions.

The subject matter of the invention.

Fitting to furnace grates for raising and breaking in slag, equipped with several rows of knives-pushers knotted along the grid of curvilinear pushers driven by a drive from a driver's booth, characterized in that skipping knives when shifting;

., figure 1 G-