SU86318A1 - Brick kiln - Google Patents

Description

IZezestny brick-kiln bilge ring furnaces with ring shmuhkanal located in the massif of masonry stoves between the vaults of the firing channel and the central flue that communicates with the fuel loading channels. However, the well-known Hoffman furnaces have a significant disadvantage in that they use a strong paper gate, which is used to glue the chambers loaded with raw material. The paper gate as they approach the chamber of the fire is burned through the burners, but the gate saturated with steam from the raw material burns only in its upper part, remaining intact at the bottom.

This opens the passage of the hot gas to the new chamber only from above under the arches, and in the center and the chamber of the kiriich remains undried, in a steamed condition, until the very moment the fire comes, as a result of which the brick often goes steamed, poor in quality. In addition, in the known furnaces, cold fresh air enters through the open unloaded chambers and enters the burned, filled with hot cooling bricks, chambers from below. As a result, the lower layers of bricks cool down faster, and the upper ones, under the arches, still remain so hot that it is difficult for workers to begin unloading the yoke from the chamber. In addition, the flow of fresh air is not regulated by anything, and has a low temperature in autumn and winter and, entering a large amount, enters the fire chamber from the bottom not heated enough, as a result of which the heated brick cools to a dark color that does not receive complete combustion of fuel; as a result, a large consumption of the latter and the deposition of soot on the brick

In the proposed brick kiln apparatus, the shmouch-channel is additionally in communication with the burning channel at its base by means of overlapping vertical channels located in the thickness of the wall separating the burning channel from the fluewood. Between the cooling and firing zones, a portable gate is used, going down in the form of a curtain to the floor, the upper edge of which is not

№86318-2-

reaches the channel channel and lowers as the upper layers of the brick cool in the cooling chamber. In contrast, a portable curtain has dimensions that correspond to the dimensions of the hole being regulated by it, which is left in the lower part of the paper curtain, which intersects the cross section of the firing channel between the burning and fumigation zones. These features eliminate the defects of renowned Hoffman furnaces, increase furnace productivity, provide fuel savings, and improve the working conditions of service workers.

FIG. 1 shows a view in a plan and partially in a horizontal section; in fig. 2 part view of the oven; in fig. 3 types of oven in longitudinal section; in fig. 4 and 5 view of the furnace in cross sections.

Around the smoke collector 1 there is an annular closed shmouhkanal for hot air, which is formed by its internal wall on the shoulders of the smoke collector, and the outside on the shoulders of the combustion channel. Due to this arrangement of the channel, the air in the latter does not cool down and always has a certain temperature due to the heat of the hot firing chambers.

From Shchmaukh-channel 2 go down against each chamber wells 3, having an output of 4 n the lower part of the chambers. Each well is equipped with a locking cone 5 that separates it from channel 2. At the top, under the arches, every two rows of burners 6 are interconnected by common channels 7, which flow into the shchmauh channel 2 and separate from the latter with the help of ordinary stove valves 8 Fresh air, through empty chambers, rushes into chambers with red-hot fired bricks. On the way at the entrance to these chambers, a hanging slide gate 9 is inserted, which, when rolled up on a rolling pin, is inserted into the chamber from the outside and has two rails 10 on the outside end, for which hooks // are hooked through the burners 12. With these shthangs when lifting, unfolding from the reel and forcing the fresh air to go, not bottom, but above the pin, under the arches. This regulates, on the one hand, the amount of air required for fuel combustion in the chambers, n, on the other hand, the finished one is cooled and prepared for unloading, primarily in its upper rows under the vaults, as a result of which downtime during unloading and unloading itself is accelerated.

As the brick cools, the nni6ep 9 goes down. Thus, uniform cooling is obtained and the yield of a benign product. Fresh air, passing through a row of hot brick, is heated; its main mass is removed to the fire chambers, and part through the burners 6 enters channel 7. After passing through the gate valves S open in these places, hot air enters the annular channel 2. From this channel it flows into the chambers, loaded with raw materials through cones 5 and wells 3 open in these places and goes to the bottom of the chambers through exit 4. Thus, the hot air primarily heats the lower layers of the Kirgishcha and} i force cBoeii temperature and specific gravity iodine upwards, penetrate and evenly warming up all rows of loaded raw.

Spent) air at; and1. force pulling into the smoke box / through the normal channel 13 and open it; cone 14. Removable fixed gate 15, illuminated with wire hooks 16 through the burners 12, shut up the raw cells loaded with the chamber, as usual, by gluing with a paper gate / 7, not with a continuous, but with an opening 2 below, 25x1.25 m. When it is necessary to let the exhaust gases from the fire chambers into a new heated chamber with

raw, paper gate P is not burned, as usual, but lifted through a burner 12 is a constant gate 15.

Thus, the passage of hot gases to the new chamber opens not upward, but below, and, first of all, the lower rows of bricks are dried, and then, due to their temperature, they rise upwards and, descending on the opposite side, exit through the channels 13 into the chimney. As a result, the steamed brick is not obtained, the latter warms up evenly and does not require kerosene consumption for the artificial burning of the gates N, since those at the approach of fire for a short distance burn themselves.

Subject invention

Claims (3)

1. A circular kiln furnace with an annular sh. Ma x-canal, located in an array of masonry stoves. Between arches of a burning channel and a central flue, communicating with fuel-loading canals, i.e. that its shmaukhkanal additionally communicates with the burning channel at its base by means of overlapping vertical channels located in the thickness of the wall, separating the burning channel from the fluewood. 2. The form of the furnace according to claim 1. That is, with the fact that between it the cooling and firing zones, a portable suspended gates are used, descending in the form of a curtain to the floor, the upper edge of which does not reach the ceiling of the channel and descends as the upper layers of the kiryich are cooled in the bladder chamber. 3.Forma me furnace for and. 1, from the point where a portable curtain is used in the sizes corresponding to the size of the opening being controlled by it, left in the lower part of the paper curtain covering the cross-section of the firing channel between the firing and fumigation zones. -3- №86318