SU57947A1 - Continuous furnace for coal activation - Google Patents

Description

Furnaces for heat treatment of various materials are known with vertical heating channels and with ringing of adjacent piers, as well as furnaces with a destillation chamber which are equipped with a shawlshaft.

The inventors propose a continuous furnace for the activation of coal.

The device of the furnace can be seen from the accompanying drawing, in which FIG. 1 shows a side vertical section of the furnace; FIG. 2 is a longitudinal section of the lower part of the furnace from the front (along the line // - // FIG. 3); FIG. 3 - a longitudinal section of the entire furnace in another section; FIG. 4-plan stove.

The lumpy material to be activated is loaded into the furnace through the hermetic closure. Under the shutter there is a loading box 2, which, due to its capacity, despite the frequency of loading, makes it possible to continuously feed the material into the furnace.

Underneath the loading box there is an internal heating cableway 3. The Schwelschacht, made of heat-resistant metal with external insulation or of metal with internal refractory refractory material, has a branch 7, through which gases and vapors go to the gas collection container.

Below the shwelschert is the activation chamber 4, ending with cooling zone 5. The cooling zone is closed by a continuously operating shutter 6, which is similar to that used in gas production.

The activation chamber has vertical heating channels 19.

In the cooling zone, steam is introduced through pipe 8 with a temperature of about 110-120 °. The cooling of the coal to a temperature of 60-70 ° takes place in the condenser 6, which is washed with air and has a water jacket 25.

The proposed furnace in terms of heating is of the recuperative type.

The air required for combustion is sucked through the window 15 into the recuperator 16 and then enters the distribution hearth channel 17. From the latter, through oblique passages 18, the air enters separate vertical heating channels 19.

The entire heating wall is divided by a vertical wall 25tak.

that each camera acquires its own verticals.

In the separation wall 23, channels 14 are placed for the additional supply of heating gas, which increases the heating uniformity in height. The main mass of the heating gas enters the verticals through the horizontal channels 13. The smoke from the heating system enters the channel 20 through the window at the mouth of the verticals. The ends can be covered with gates 21, which allow the combustion to be controlled in each vertical. The burning is monitored through the chapters 22. From the channel 20, the smoke is directed to the burs 24 through the heat exchanger 16.

The activation gas required in the process is supplied to the furnace chamber at several locations. The main mass of gas or steam enters the bottom of the furnace in a highly overheated state through channel 10. Then, in several places along the chamber height, along the corresponding channels 12 placed in the separation wall 23, activating gases or vaporous reagents can also be introduced into the chamber.

The gases released into the activation chamber and unreacted with the material carbon activating agents are directed upward into the chamber and then into the mine.

The physical heat of these gaseous products is the heat at the expense of which the material is prepared for activation, i.e., beveling.

In the event of a shortage of heat, for example, when activating highly moist fuels, namely, peat and wood, an additional amount of heat transfer fluid must be supplied to the surface. For introducing this coolant into the furnace, a channel 12 is provided, into which the coolant enters either from below, if it is the same as the activation gases, or laterally through the channel 26; in the latter case, the vertical stroke 27 is not carried out.

The subject matter of the invention.

A continuous furnace for the activation of coal, etc., consisting of a distillation chamber, equipped at the top with an anchor and annular adjacent walls with vertical channels, characterized in that the dividing walls 23 of the heating wall are equipped with channels 14 for additional gas supply and channels 12 and 26 for feeding activation gases into the chamber.