DE1959070B

DE1959070B - Device for granulating molten slag

Info

Publication number: DE1959070B
Authority: DE
Inventors: Josef Dipl Ing Brunn Chalupsky (Tschechoslowakei)
Original assignee: Prvni brnenska strojirna n p Brunn (Tschechoslowakei)

Description

hälters 1 fallen. Der Rost 3, die Zerkleinerungsvorrichtung 2 und die Trennwand 4, welche an der dem Rost 3 gegenüberliegenden Seite angebracht ist, teilen den Wasserbehälter 1 in zwei Räume ein. Für eine gute Schlackengranulierung ist es erforderlich, im oberen Raum eine intensive Querströmung zu der zufließenden Schlacke zu erhalten. Diese Querströmung wird durch Wasser, welches unter Druck aus den Druckwgsserdüsen 5 strömt, sichergestellt. Die Strömung wird so bemessen, daß die Schlacke von der Stelle, an der sie auf den Wasserspiegel auftrifft mitgenommen und unter das Wasser getaucht wird. Die Schlacke, welche durch den Rost durchgefallen ist, mischt sich mit der Schlacke, die durch die Zerkleinerungsvorrichtung 2 zerkleinert wurde, und wird durch die Rohrleitung 6 in einen Sammelbehälter oder in eine andere Transporteinrichtung, welche auf der Zeichnung nicht dargestellt ist, gefördert Es ist zweckmäßig, den Granulierbehälter mit einem Notausleerverschluß 7 zu versehen. Der Rost 3, der die Zerkleinerungsvorrichtung 2 von der kleinkörnigen Schlacke entlastet, wird mittels eines Vibrators 8, der mit dem Rost 3 verbunden ist, in reinem Zustand gehalten. Der zur Zufuhr der dünnflüssigen Schlacke dienende Schacht 9 ist direkt über dem Rost 3 angeordnet Bei einem anderen Ausfuhrungsbeispiel der Erfindung, welches in den Fig. 3 und 4 dargestellt ä~ist dir Schacht 9 in größerer Entfernung vomholder 1 fall. The grate 3, the crushing device 2 and the partition 4, which is attached to the Grate 3 is attached opposite side, divide the water tank 1 into two rooms. For one Good slag granulation requires an intensive cross-flow to the incoming flow in the upper space Obtain slag. This cross flow is caused by water, which is under pressure from the Druckwgsserdüsen 5 flows, ensured. The current is dimensioned in such a way that the slag is carried away from the point where it hits the water level and submerged under the water. The slag that fell through the grate mixes with the slag crushed by the crushing device 2 and becomes through the pipeline 6 in a collecting container or in another transport device, which on The drawing is not shown, promoted. It is advisable to equip the granulating container with an emergency emptying cap 7 to be provided. The grate 3, the crushing device 2 from the small-grain Slag is relieved by means of a vibrator 8, which is connected to the grate 3, in a clean state held. The shaft 9, which is used to supply the thin slag, is arranged directly above the grate 3 In another exemplary embodiment of the invention, which is shown in FIGS ä ~ is you shaft 9 at a greater distance from

Rost 3 angebracht „,. . „Grate 3 attached ",. . "

Für die Granulierung einer großen Schlackenmenge ist eine beträchtliche Wassermenge' «forderlich. Bei den beiden angeführten Ausfuhrungsbeispielen des Granuüerbehälters ^^d ^^eck*, ^ facherer Schlackenförderung der Jydrostaüsche Druck ausgenutzt Es kann aber auch em EjektorA considerable amount of water is required to granulate a large amount of slag. In the case of the two exemplary embodiments of the Granuüerbehälters ^ ^d ^ ^eck *, ^ multiple slag conveyance of the Jydrostaüsche pressure exploited. But it can also be an ejector

^d^eÄgsgemäßen Emrichtun,; wird^zuverlässig vor der Zerkleinerungsvorrichtung die Aussonderung der feinkörnigen granulierten Schlacke erreicht, welche bei den bekannten; Aus^ngen^e Zerkleinerungsvorrichtung ^^^8^2^ Dies wird durch eine intensive gerichtete Wirbelung des Wasserinhalts im Wasserbehälter sowohl in hon-^ d ^ in accordance with the installation; becomes ^ reliable before the comminution device, the separation of the fine-grained, granulated slag achieved which among the well-known; Aus ^ ngen ^ e Crushing device ^^^ 8 ^ 2 ^ This is achieved by an intensive, directed vortexing of the water content in the water tank both in

vom Wasserspiegel gesorgttaken care of by the water level

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

To create the type mentioned at the beginning, through which claims: an accumulation of already granulated slag in front of the crushing device with overfilling of the

1. Device for granulating schmelzflüs- container is avoided.

sig'er slag in a water-filled bed 5 This object is achieved according to the invention with one arranged in the container that on one side of the in the lower part of the Comminution device, characterized by a comminution pre-arranged in the water tank, that on one side of the direction in a known manner one above in the lower part of the water tank (1) angeord- a certain size lying slag parts of the Neten shredding device (2) in per se io shredding device feeding, inclined known way one above a certain grate and on the other side one for th size lying slag parts of the crushing outer wall of the water tank approximately parallel nerungsvorrichtung (2) feeding inclined partition are provided and Grate (3) and on the other side one to the in the upper part of the water tank across the Outer wall of the water tank (1) approximately parallel 15 flowing slag stream directed pressure washer Partition wall (4) are provided and nozzles for generating an over the grate after in the upper part of the water tank (1) across the bottom and in the space between the separating inflow Slag flow directed pressure wall and the outer wall of the water tank water nozzles (S) for generating a liquid flow above the top Grate (3) down and in the space 20.

between the partition (4) and the outer wall Due to the inventive design of the water

of the water tank (1) upward running serbank there is a circulation flow Liquid flow are arranged. in the water tank through which all granules

2. Device according to claim 1, characterized in that gelate is first fed to the inclined grate. that the front of the shredding 25 so that the smaller parts are directed through the grate (2) upstream grate (3) in itself and the larger parts of the crushing known Way designed as a vibrating grate approximately device are supplied. The current is. is maintained by the pressurized water jets,

whereas the partition wall has the desired course

30 of the circulation flow in front of the pressurized water nozzles

favored. Due to the embodiment according to the invention, an accumulation of slag before the crushing

The invention relates to a device for grazing device effectively avoided,
As already mentioned above, the arrangement of a water-filled container with a grate in the container 35 in front of the comminution device is arranged above the comminution device. of the water level for already in a solid state

The device according to the invention is known above all lying slag parts. Not known intended for such steam boilers, in which, however, it is a decay arranged under water Upstream of the combustion process a liquefaction of the smaller unps device a grate, Slag takes place and the slag from the fire 40 which only through a certain on the grate space is discharged in a thin liquid state. directed liquid flow comes into effect.

A granulating device is known in which the

cher the slag leaving the combustion chamber over sufficiently small existing slag granules an inclined grate in a container proposed in one embodiment of the invention, is flushed, which has a comminuting device for 45 that of the comminuting device upstream contains the coarser slag parts. Below the grate in a manner known per se as a vibrating grate The shredding device is the container with what is formed

water filled, in which both the grate in the following description of two execution

falling, fine slag parts as well as those in the examples, the invention is explained in more detail on the basis of the drawing-shredding device. It shows
fall. For other similar devices, it is FIG. 1 a device according to the invention is known in the plumb line, the longitudinal section in front of the comminution device through the water container,
trained grate as a vibrating grate. F i g. 2 the water tank in section along the

These known devices already process line AA from Fig. 1,

solidified slag. But it is also an Em- 55 F i g. 3 a water tank in the vertical longitudinal direction known in which the molten cut with a longer path for the slag-slag granulated in water and in a crushing granulation and

nerungsvorrichtung is broken, the water in Fig. 4, the water tank in section along the

is arranged. Line B-B of Figure 3.

If there is a high incidence of slag - if coal 60 As in FIG. 1 is shown in the water high ash content is burned - it comes holder 1 a certain amount of water but upright occasionally to overfill the granulating hold. The glowing slag flows through a water container with slag and to an accumulation of the layer in which it is used to distribute the granulating Slag in front of the crushing device, which results in slag. The larger slag fractions cause malfunctions can lead. The entire equipment up to the comminution device 2, while the processing places high demands on the maintenance of smaller pieces of slag through the holes of the of all wearing components. Grate 3, which the shredding device 2

It is the object of the invention. a device that is connected upstream, in the lower part of the water