SU9469A1 - Device for removing ash from ash chambers by hydraulic means - Google Patents

Description

The methods used in practice for hydraulic ash removal at large electric stations when burning multi-ash fuel (coal, peat, etc.) have proved their advantages against the previous elementary methods of ash removal (removal in one way or another directly from the furnaces). However, the existing devices for the removal of ash by hydraulic means are complex, expensive and need, in order to fulfill their functions, a large flow of water under considerable pressure, which increases energy consumption, and, moreover, it is necessary to perform certain manual operations in each individual case. the attendant (open the gentile, start up the grinding machine, etc.),

The present invention, using the well-known method of removing ash discharged from ash chambers with a jet of pressurized water, relates to a device for removing ashes hydraulically using a collection pipeline equipped with inspection hatches, which take ash from separate chambers with chambers, and aims at simplifying and cheapening the device itself , so that the supervision necessary for the installation operation to a minimum is minimized; iodically through a simple siphon of a conventional device.

In FIG. 1 shows a longitudinal section of a boiler house with the installation of a proposed ash removal device; FIG. 2 and 21-two projections of the ash funnel in the section; FIG. 3 and 3 are a longitudinal section and a top view of the wash water tank; and FIG. L - longitudinal section of the building with a sump for waste water.

Tank B (Fig. 1), installed at a sufficient height and having a connection with the atmosphere or simply open, is continuously filled with water from the station's general water supply network. As soon as the water level in tank B reaches the overflow line of the siphon C installed in the tank, the water through the siphon C discharges, according to the inventor, the tank and, having passed the vertical pipe T, with great speed rushes along the slightly inclined pipeline M located under the ash funnels B, connected to the pipeline M by short straight pipes / 7, carry with them all the dumping in the pipeline M from the funnels to the ashes. From the pipeline M, water with ashes may be discharged to ash deposits. The flushing of water for flushing the pipeline Af is thus made periodically as the tank B is filled, and the frequency of flushing can be regulated by the speed of filling the tank. Experiments made by the inventor on a similar system, he said, showed that there is no need to install costly slag crushing mechanisms in the ash funnels and that both the ash and slag pieces are completely cleaned with a water jet. In order to prevent extremely large pieces of slag from entering the pipeline L in the ash funnel B, a lattice W (Fig. 2) with large openings can be installed on which the slag can be crushed through a special window O and then run into the pipeline M. D the dead ash funnels from the pipeline M are installed on the pipe / 7; a valve 3 is installed. In addition, a safety siphon A is installed in case of a flogging of the pipeline M and in this case possible pouring of the ash funnels B (Fig. 1) warning about blockage SRI then through hatches ./ (FIGS. 1, 2) line M can be purified.

The receiving mouth of the siphon C installed in the tank B (Fig. 3) is made in the form of a conical socket A and is located above the conical nozzle AND installed on the bottom of the tank, designed to facilitate a more rapid emptying of the tank. For draining the water from the tank B in case of repair, etc., there is a drain pipe -Te valve K, usually closed.

The waste water, along with the ashes, can be sent to a special settling tank P (Fig. 4), from where the settled ash is mechanically loaded into the trolleys, and the water, using the pump H, supplies the return pipeline E to the tank / (Fig. 1 ).

The subject of the patent.

1. A device for removing ZOL from the ash chambers by hydraulic means, characterized in that, for the purpose of flushing the tank B, fed by a continuous water supply, a simple siphon of a conventional device is installed, under the outlet mouth of which is extended as a conical socket A at the bottom tank installed conic nozzle I.

2. In the device described in paragraph 1 of the device, use a return pipeline (FIG. 4), which receives water from the Sludge Tank P by means of a pump H and supplies this water back to Tank B.

fig /,

FIG. 2 and 2.

.-i-v- / --- x N

4; r.ig-z:: -z: I: p TiH

phyp3

phypz