SU97052A1 - Apparatus for removing slag residues from steam boilers - Google Patents

Description

Devices are known for removing slag residues from under steam boilers using water that enters the slag-flushing chamber and serves as a means for removing slag residues at the slag dump.

The proposed device differs from those known in that, in order to continuously crush jets of water from the furnace and maintain some dilution in the slag-washing collector, a chamber fitted with water nozzles is arranged between it and the slag bunker of the steam boiler. Shurovka sticking pieces of shlak on the granulation lattice located in the lower part of the chamber.

FIG. 1 schematically depicts the installation of a slag chamber of a device for removing slag-salt residues from under steam boilers, side view; in fig. 2 - general view; in fig. 3 - mutual arrangement of the ash pit and hydropneumatic elevator.

The slag chamber 1 (Fig. 1) is located between the slag bunker 2 and the slag collector 3. The chamber / is equipped with a gate 4, tightly closed doors 5, water nozzles 6, slattes 7 and an iS jack head. The nozzles 6 are fixedly mounted in the lower part of the chamber 1 at a certain angle to the horizontal and direct the water jets upwards towards the slag falling from the slag bunker. Water jets penetrate the grate 7 and hit the inner wall of the baffle head 8. At the same time, the water flows down into the scrap collector 5, located below the slag chambers / several steam boilers and equipped at the end with a water nozzle 9 (Fig. 2). In the horizontal sections of the mud-washing collector 3, additional intermediate continuous action water nozzles are installed at regular intervals. For discharging the ash from the ash bunker to the slag scrubber collector, a PP pipe has been installed that has closures for switch No. 97052

Zhenospuskov when repairing boilers. Slag-washing collector 3 has a certain bias towards the metal catcher 11. The metal catcher can be connected to the drain water well 12 using a valve 13 controlled by a hydraulic actuator 14. Outlet taps 15 of slag-washing collectors 3 are combined with a common exhaust pipe 16. When repairing slag-washing collectors 3, removal of slag stones residues from the slag bins 2 can be produced through emergency slag spikes using reserve slag and wash channels 17 equipped with end water nozzles 18. Reserve back slag channels 17 are used Coziness also as drainage canals for drainage of water from all weirs of the boiler house.

The ash pit 19 in the upper part is equipped with a slit lattice 21 and overflow ridge 22, forming a channel 25 for draining clarified water. At the slit plate 21, the slag pulp is enriched, the gfc of which flush water, clarified by sludge in the ash collector 19, is returned to the reservoir, from which it can again be spent to flush the slag residues from under the steam boilers. The ash collector 19 is connected to the receiving chamber 24 of the hydraulic pneumatic elevator 20 with the help of pipelines. From the hydraulic pneumatic elevator, the discharge shlakozoloprovoda originate and they end at the loading bay field.

Subject invention

Claims (3)

1. A device for removing shlakozolovyh residues from under steam boilers, characterized in that, in order to continuously crush water streams of slag falling out of the furnace, and maintain some dilution in the slag collector, a chamber is hermetically closed between it and the slag bunker, equipped with water nozzles, which also serve to scoop the sticking pieces of slag on the granulation grate. 2. In the device according to claim 1, use of a metal trap located below the output sections of slag-wash collectors and consisting of a well equipped with a hydraulic valve and a drain chamber with a grated filter and drainage. 3. In the device according to claim 1, use a slit lattice and a sump with a drain, designed to separate the bulk of the water from the hydrophoracolic pulp before it enters the hydropneumatic air distributor. fpuz.l