DE1947200A1 - Device for evenly filling the coking coal into horizontal coking furnace chambers from filling containers of filling wagons - Google Patents

Description

194720G

Dr.P / Κβ Xl. September 1969

Patent application

the
Carl Stillt Recklinghausen company

Device for the same-wet filling of coking coal into horizontal coking furnace cabinets from filling containers of filling wagons

There are flushing devices for coking ovens known at where the coking coal is metered into the furnace chambers, e.g. by rotary plates or screw conveyors. Here is Uniformity or regularity of the coal inflow to the furnace chambers from the individual filling containers.

But, apart from the higher technical effort, the coal supply through turntables and screw conveyors is often too slow for the current requirements for modern coking furnace batteries, so that the much simpler and faster supply is free fall, especially since ways and means are known, in doing so, prevent the leakage difficulties of the EU coking coal, for example by adding vibrators to the filling container or by oscillating vibrations of the sparging organs. A quick filling of the coking coal into the ^υ ίοη-Kanraern is also desired because of the higher bulk density achieved in the furnace chamber as well as the less segregation of the coconut during the filling process.

ÖAD ORfGINAL

1098U / 0982

The disadvantage of filling the coking chambers with the so-called "free-fall filling car" is that the filling speed, i.e., constrict the cabbage that flows into the oven chamber in the unit of time, practically uncontrolled and not controllable, as well as is different for the different filling containers. The initially small speed increases under the influence of various factors, such as the grain size and moisture of the coal, as well as the texture the surface of the filling container walls, at a great speed, which practically depends on chance is and can aein different from filling container to filling container / 'and then decreases again. This is particularly disadvantageous In view of the legal need to keep air pollution when filling coking ovens to a minimum to reduce.

According to the state of the art, the filling gases are either sucked out through the filling shafts of the furnace canines, burned and or »or washed and released into the open atmosphere, or sucked through the interior of the coking chamber and the riser pipe into the template, the Negative pressure is generated by a steam nozzle. In any case the design of the suction organs causes difficulties if they are to be set up in such a way that the unit of time arising from volume displacement and spontaneous gas evolution Filling quantities are different. That is even more true than the filling process itself only takes about 90 to 150 seconds and in this period of time in modern coking ovens up to 35 t of coking coal flow in.

The strob the filling gases would laseen be vacuumed far easier _t when the volumenmäasige air displacement in the Cfenkammer by the coking coal and the spontaneous development of calibration gases from Füllbeginn to set a

109814/098 2

Increase maximum value and would persist at this maximum value until the end of the filling process.

A free-fall device for coking ovens is proposed, which consists of a filling container with a closure member at the lower end, the closure member either fixed to the filling container outlet or in a freely movable discharge funnel underneath and within or A level measuring device is arranged outside the filling container that is in connection with the decision-making body.

The new device is characterized by a control device, which is arranged between the closure element and the level measuring device and which, after opening the closure, keeps the decrease in volume or weight of the coal level in the filling container per unit of time by influencing the degree of opening of the closure element (dv _B «) ·

German

The closure member can be a mussel slide, a rotary slide or an ordinary knife gate valve. An ordinary rotary flap is preferred.

The level measuring device can be of a mechanical nature, e.g. a sensor hanging on a rope inside the filling container be. Ss can also be radioactive outside the filling container Display be appropriate.

An electrically capacitive sensor can also be used ia be a filling container.

The pulse for the control unit can also be taken from the change in weight of the individual filling containers. In addition For example, the filling containers are stored in a manner known per se on electrical or hydraulic pressure cells that

10981Λ / 0982 *

in turn are connected to the control unit.

The control unit is a commercially available electronic control unit «

The control unit is expediently set so that it the closure member closes before the coal completely has flowed out; a small amount is left in known food as a gas seal in the filling container or the (I discharge funnel. This prevents filling gases from penetrating to the outside or the sucking in of outside air in the furnace chamber avoided.

You can of course also oscillate the closure organ in a known manner during the filling process let jand thus the task of a constant fillstron «U receive, facilitate.

0 9814/0982

Claims (2)

194720G claims 1. Free-fall filling device for coking ovens, which aua a filling container with a closure member aa lower end, the closure member either feat on the filling container run or in a freely movable run funnel underneath and inside or a level measuring device outside the filling container is arranged, which is in communication with the closure member, characterized in that daaa between Versohlussorgan and level measuring device one control device is arranged that after opening the closure organee the volume or weight decrease of the coal level in the filling container per unit of time by influencing the degree of opening of the Yerschluasorganeß keeps constant. 2. Device according to claim 1, characterized in that « that the closure organ is a vertical flap 1098U / 0982