SU89586A1 - The method of firing materials and products in the ring and tunnel kilns - Google Patents

Description

The subject of the invention is a method of burning in the annular tunnels of brick kilns, tiles, fireclay, dinas, magnesite, refractory products, lime and other materials.

A distinctive feature of the sawed-in invention is that the firing is carried out by burning the coal not by filling it in top tubes with ring furnaces and gas generator tunnel furnaces, but by laying and pouring PM the material to be burned during the process of laying the products of the material: | and in the oven.

The drawings depict a brick shedding system in an annular kiln according to the proposed method. FIG. 1 shows a cross section of the furnace; in fig. 2-Herodolpipe cut her; on phpg. 3-horizontal section of the furnace according to AA per fpg. 2

In contrast to the method of firing 10P1 and the methods of roasting with a backfill angle through the top sewed tubes in the arches of the furnaces, in the o1P1 sysoim fine fine-grained stone coal (in an amount sufficient for roasting by a number of bricks baked), is poured into thin c and on top of the transverse 2 rows of bricks, mounted on a raft edge to each other and located with the long side perpendicular to the axis of the kiln firing channel (even rows of the charge). On the ug.ch layer, lying on the hearth of the furnace and between the transverse fourth rows, lay longitudinal ones. rows of bricks on the edge (the alternate rows of frames), for 1 (side along the smallpox of the kiln firing channel and 11y the right angle to the base of letters of the row of blocks, pa the distance between the post. m. 40 uu

When using the oppressed method, Kostolikovye echki under top tubes do not fit, and current tubes are muffled. Fuchs 4 are made at a distance of 1 opt. O.cho 5 m from one another. Tubes 6 are provided for burning the screens 5 in the roof of the furnace.

Along the axis of the burning channel, all bricks are both longitudinal and

Up to 89586-2 and transverse 2 rows of p / yutno adjacent to each other, with the exception of the Fuchs set-up, where in the first, second, third, fourth and fifth rows, 130 mm breaks are made to pass the off-gases to Fuchs, and with the exception of the volume in the channel immediately after Fuchs, where dells. as with the existing firing methods, wrap a cut in the cage of 130 mm for installing a bhmazhny screen 5.

After the cells have finished booting up and installing the screens, the products are heated to the ignition temperature of filled fuel from conventional or specially arranged fireboxes or by including into the heating zone, operating according to the existing method of burning coal with hot coal through heating pipes. In the further calcination of products occurs without the addition of coal through the fuel tubes and without the fate of the firemen. Drying and cooling are carried out in the same order as with existing firing methods.

The purpose of the proposed method sledypla.

1. To increase the density of the brick set to 290-320 pieces per 1 liter of the furnace channel volume.

2. Accelerate heat transfer, improve the firing uniformity and increase the burning area of the fuel.

3. Reduce outside air inflow into the furnace by controlling the fuel tubes in an amount up to 90% of the total number of them.

4. Increase the productivity of ring furnaces and reduce fuel consumption.

Subject invention

The method of burning materials and products in ring and tunnel kilns, characterized in that the burning is carried out with coal without filling it into the fuel tubes of the ring furnaces or into the gas generator furnaces of tunnel kilns in the process of burning, with coal laying or pouring of the burned material with coal in the process of charging the products or material into the oven.

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