SU654843A1 - Multibatch furnace for roasting carbon-containing materials and articles - Google Patents

Description

It leads to the exit from the building of the gate and finally to the exit of the furnace from the building.

The aim of the invention is to reduce the level of temperature in the chambers and to prevent osmosis of boars.

This goal is achieved due to the fact that the multi-chamber system contains chambers equipped with connecting channels and burs connected to the collective Oore, a gate for controlling the movement of flue gases installed between the bore of each chamber and the collecting bore, burners in the chambers and connecting channels, a smoke exhauster connected to prefabricated borax, additional smoke exhausters installed between the borax chamber and the prefabricated boar, and burners installed at the gates.

The distinction of the proposed invention is that the pump is equipped with additional smoke exhausters installed between the hog of each chamber and the collective hog, and burners installed at the gates.

The construction of a cable prevents the temperature in the chambers from decreasing and prevents the pines from being tarred, since the additional smoke exhausters installed between each chamber's flue and the collection flue, allow additional amount of fuel (flue gases) to be circulated through the furnace chambers and thereby reduce the cooling rate of flue gases when moving through the cage, and the burners installed at the gates allow you to maintain the temperature of the flue gases introduced into the circulation from the bore at the specified levels, And the hot burner gases burn out the resin condensed on the walls of the boars.

FIG. 1 shows a portion of the oven chambers, top view; in fig. 2 - section aa and pa of fig. one; in fig. 3 shows a section BB in FIG. one.

The multi-chamber system consists of two parallel rows of chambers 1 (the drawing shows a part of one row of chambers without a removable arch) with each other, with the calendar camera being connected to the next through connecting channels 2. Chamber i is divided into cassettes 3 whose walls are framed from shaped brick having channels 4 for the passage of hot gases from the nod-joint cavity 5 into the sub-chamber cavity 6.

The burners 7 are powered (the burners located in the connecting channels are not shown in the drawing) by means of the fuel line 8. The products 9 are loaded into the cassettes 3. Each chamber 1 is connected through the burs 10 of the chamber to the collective boric furnace li through junction 12 in which the gate 13 is installed. In the hog 10 of the chamber at the gate 13 a burner 14 is installed for burning fuel. A smoke exhauster 5 is connected to the collecting hog.

Best multi-chamber furnace

illustrate using the example of one chamber 1, since all the oven chambers go through the same stages of operation.

The cassettes 3 of the chamber are loaded with products 9, the chamber is closed with a detachable vault, blocked with a gate 13 installed in junction 12 of the previous chamber 1, discharge flue gases into the assembly

furnace burs 11, as a result of which flue gases are connected to the connecting channels 2 of the chamber 1 (in Fig. 1, the central chamber) and enter the subsurface cavity about this chamber and when they move downwards but the channels 4 in the walls of the cassette 3 are cooled, thereby heating the product 9 At the exit of the channels 4, the flue gases enter the sub-chamber cavity b, from there into the burs 10 of the chamber 1 and through the transition 12 of the chamber 1 are discharged into the collecting burs And nech. But as the products 9 in the chamber heat up from the flue gases coming from the previous chamber (in Fig. 1, the left chamber) through the connecting channels 2 of the chamber 1, their temperature rises, and it reaches this value (80U-UEP) when temperature (up to 13UOC) products 9 requires the work of the chamber burners 7. But at the end of the combustion of the products 9 in the previous chamber, the burner Y in the non-OI is turned off, and in the chamber the next one is switched on. In order to intensify the process of cooling products 9 in the chamber and save gas iodavoe to the burners / fuel line

8, the air necessary for gas combustion enters the chamber through the connecting channels 2 after it passes through the channels 4 of the previous chamber. At this temperature, the burners of 7 chambers 1 are shut off,

and subsequent cameras (in Fig. 1, the rights of the camera) include. Consequently, there is a shift of the maximum temperature (burner operation) from one furnace chamber to another, i.e., if in one chamber the switchJiKH 7 is turned off, then in the next one along the movement of flue gases it is included, moreover, several cameras up to the one in which burners 7 are working, the chambers unload and the path of cold air into the chamber, in

which burners 7 operate, starts from them for several chambers and the one in which the burners operate /, the products are loaded. In all chambers that are cooled by cooling or under loading / unloading, gate 13 in junction 12 is closed, and the position of gate in 13 chambers through which flue gases pass, as well as the operation of burners 14 and smoke exhauster 15, is determined as follows.

For regulation according to a given temperature regime in the feed cavity 5 chambers 1, in which, at the time of regulation, the burners 7 do not work, i.e., which are heated by the gases entering

from previous chambers include burners

14, by changing the gas flow rate in which they maintain the temperature in the 5th cavity under the displacement due to the displacement in the connecting channels 2 chambers of hot gases coming into them from the hogs 10 chambers from the burners 14, with the flue gases from the under chamber cavities of the 6 previous chambers according to the heating schedule.

At the same time, the hot gases of the burners 14 burn out the hog resin. However, this increases the temperature difference between the subsurface and subcameral cavities 5 and 6 chambers, and hence the height of the charge of products 9 due to the intensive cooling of flue gases moving but channels 4, since their temperature in the subsurface cavity 5 is high and the heat content is is small.

In order to effectively regulate this temperature drop and reduce it to any predetermined value (usually not more than 50 ° C), the flue gases injected by the exhauster 15 from the prefabricated bore 11 in the furnace to the bore 10 of the chambers where they mix with the heated gases burners 14. Changing the position of the gates 13 in the transitions 12, regulate the volume of flue gases entering them into the furnace chamber through the hog 10 chambers, and changing the gas flow rate in the burners 14, maintain the temperature of these additional flue gases at a level that follows mixing with the flue gases from the preceding chambers provides the schedule predetermined for a given temperature in the cavity 5 podsvodovoy chambers.

An increase in the volume of flue gases leads to less intensive cooling when passing through the channels 4 of the cassettes of the 3 chambers, i.e., the temperature difference between cavities 5 and 6 decreases, i.e. the heat content of the flue gases increases. In order to regulate the temperature under the chamber arch, when it is necessary to reduce the heating rate of the products, the burners 14 are turned off, and the reversible smoke exhausters 15, with the appropriate position of the gates 13 at the transitions 12, suck flue gases from the burs 10 of the chambers into the combined burs 11 of the furnace,

moreover, the exhausters 15 may not be reversible, then the exhausters are turned off, and the flue gases are sucked out due to the discharge in the combined flue 11 of the furnace created by the chimney and exhauster

(not shown) of the chimney. It should be emphasized that the specified location of the burner 14 creates, during its operation, additional heat due to the injection of hot gases flowing from the burner,

thereby improving the performance of the exhaust fan 15.

Claims (1)

Invention Formula A multi-chamber kiln for burning carbon-containing materials and products, containing chambers with connecting channels and hogs connected to a collective hog, a gate for controlling the movement of flue gases installed between the hog of each chamber and a collecting bore, burners in chambers and connecting channels prefabricated hog, characterized in that, in order to reduce the temperature difference of the B chambers and prevent the resinification of the hogs, the furnace is additionally equipped with smoke exhausters installed between the hog of each chamber and the hog collector, and burners installed at the dampers.