DE1959070C - Device for granulating molten slag - Google Patents

Description

holder 1 fall. The grate 3, the crushing device 2 and the partition 4, which is attached to the Divide the grate 3 on the opposite side the water tank 1 into two rooms. For good slag granulation it is necessary in the upper Space an intense cross-flow to the inflowing Obtain slag. This cross flow is caused by water, which is under pressure from the Pressurized water nozzles 5 flows, ensured. The flow is measured in such a way that the slag from the ι ο Place where it strikes the surface of the water, is taken away and submerged under the water. the Slag that has fallen through the grate mixes with the slag that has passed through the crusher 2 was crushed, and is through the pipe 6 into a collecting container or in another transport device, which is not shown in the drawing, promoted. It is expediently, 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 version, the Invention, which is shown in FIGS. 3 and 4 is, the shaft 9 is in a larger distance from Grate 3 attached.

For the granulation of a large amount of Sililack a considerable amount of water is required. With the two cited performance examples of the granulating container becomes the hydrostatic one for the purpose of easier slag conveying Pressure exploited. But it can also be an Ijvktur Find application.

With the device according to the invention, the separation takes place reliably before the comminution device the fine-grained granulated slag reached, which in the known designs Placed excessive load on the crusher. This is done through an intense directed vortex the water content in the water tank accomplished both in the horizontal and in the vertical direction. The granulated slag is constantly removed, so that storage of the granulated slag in the There is no water tank and it can therefore be relatively small. It is also great for a perpendicular distance of the shredding device from the water level.

1 sheet of drawings

Claims (2)

1 2 initially mentioned type to create by which claims: an accumulation of already granulated slag in front of the crushing device under overfilling the 1. Device for granulating schmelzflüs- container is avoided. siger slag in a water-filled loading 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 cherished slag parts dei 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 an iur in the upper part of the water tank across toii, Outer wall of the water tank (1) about parallel 15 flowing slag stream directed pressure water running end 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 dividers incoming slag stream directed pressure wall and the outer wall of the water tank naci water nozzles (5) 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 the inclined grate is first fed indicates that the front of the chopping unit is 35 so that the smaller parts are executed through the grate (2) upstream grate (3) pass through and the larger parts of the chopping 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 effectively avoiding graining device, nulate molten slag in one with what- As mentioned above, the arrangement is one water filled container with a grate in the container 35 in front of the shredding device above arranged shredding 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 submerged decomposition Ur "the combustion process a liquefaction of the reduction device upstream of 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 Granulicereineinrichtung is known, with which To even better separation of the already separated 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 based on the drawing Zerkleinerungsvorichtung shredded parts into 50 explained in more detail. It shows fall. In other similar devices, a device according to the invention is known in FIG. 1, the longitudinal section through the water tank in front of the shredding device, trained grate as a vibrating grate. Fig. 2 shows the water tank in section along the These known devices already process Linc / 1-Λ from Fig. 1, solidified slag. But it is also a one- 55 Fig. 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, in the water Fig. 4 the water container in section along the is arranged. Line BB from FIG. 3. If there is a high incidence of slag - if coal 60 As shown in FIG high ash content is burned - it comes to container 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 pieces of slag gelan 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 The object of the invention is to provide a device that is connected upstream, in the lower part of the water