SU1327932A1 - Apparatus for separation of high-temperature gases - Google Patents

Abstract

The invention relates to a technique for separating dispersed particles from gases using inertial forces. The device allows efficient gas cleaning with significant fluctuations in its consumption. The device is provided with a vertical partition 4 having U-shaped protrusions 6, on the horizontal shelves of which there are slit apertures 9, closed by hinged lids, each of which is a plate valve 10. In the housing 1 behind the vertical partition 4 an additional vertical partition 14 is installed and horizontal partitions 15 which are included in the projections of the main partition 4, which are rigidly attached to the partition 4 and respectively to housing I or an additional partition 14. This allows the app They are divided into a series of series-connected chambers 16. Each chamber is equipped with a baffle made in the form of vertical cooled tubes 17. The housing 1 and the additional partition 14 are equipped with a cooling jacket 20. Thus, multi-chamber separation and condensation are achieved in the device, which leads to increase the cleaning effect in a wide range of gas flow changes. 3 hp ff, 2 ill. i (L С with tc with OS to FIG.

Description

This invention relates to a technique for the separation of dipers particles from gases using inertial forces.

The aim of the invention is to create a shock-inertial device, capable of operating with significant gas flow fluctuations, capable of simultaneously separating solid and vapor-like inclusions, the cleaning efficiency of which is significantly higher than that of known devices.

FIG. 1 shows the device, a sectional view of the front; in fig. 2 shows section A-A in FIG. one.

The device contains a vertical body 1, rectangular in cross section (maybe round), provided with an inlet 2 and an outlet 3. Inside dividing the casing 1, there is a separating branch pipe 2 and 3 vertical partition 4 that does not reach the bottom 5 of the housing 1. The partition 4 is made with two unidirectional equal N-shaped protrusions 6, while the same projection 7 is formed between them. The number of such protrusions is determined depending on the properties and the number of gas present in the gas. solid inclusions (solid and vapor). On the horizontal shelves 8 of the projections b, slotted holes 9 are made, covered with lids, each of which is a plate valve 10 attached to two limiting brackets 11 placed between two rails 12 mounted on the vertical partition 4. V the lugs 12 secure the axle 13, passing through the holes in the limiting brackets 11.

In case 1, an additional vertical partition 14 is installed behind the vertical partition 4, the length of which is less than the partition 4. Four horizontal partitions 15 are installed in case I, two of which are included in the projections 6 and are rigidly attached to the walls of case 1 and the wall the protrusion 6. The other two partitions 15, one of which enters the protrusion 7, and the other located below the second U-shaped projection b, are rigidly attached to the vertical partition 4, an additional vertical partition 14 and the side walls of the housing 1. With the help of horizontally ntalny partitions 15 are formed through identical closed chambers 16 - two on one side of the vertical partitions 4 and two on the other, with the inlet 2 inserted into the first chamber, and its output and exit of each next chamber (slot 9) serve as the entrance cameras.

The change of the horizontal partitions 15 along the height of the U-shaped protuberance b must be such that an equal distance between the horizontal surface 8 of the protrusion 6 or 7 and the horizontal partition 15 in each chamber 16 is maintained,

however, this distance is 1 / 3-2 / 3 heights and is selected depending on the saturation of the gas with the separated impurities and the duration of the periods between the cleanings of the chambers from the accumulated at the bottom of the soils. In each chamber 16, bump stops are installed in the form of at least two rows of vertical internally cooled tubes 17 arranged in a checkerboard pattern, Q while the distances between the tubes 17 in one row are equal to or less than the outer diameter of the tube 17. To simplify the manufacture of the tube 17 are made equal to the height of the housing 1 and passed through the horizontal partitions 15, and their outputs are derived

5 from the top to the top 18 and from the bottom to the bottom 19 collectors (cooling jackets), although they can be autonomous for each Mepi) 16. The left wall of the housing 1, the additional vertical partition 14 and the side walls of the housing 1 are equipped with a cooling jacket 20. each chamber 16 is above the horizontal partition 15, but below the horizontal surface 8 close to it of the protrusion 6 an overflow pipe 21 is installed, and at the level of the horizontal Partition 15 -

5 of the bottom of the chamber 16 is located a drain nipple 22. The same nozzles 21 and 22 are installed in the housing 1 above and at the bottom of the housing 1. The drain nozzles 22 are blocked by plugs, and the overflow nozzles 21 are connected to the collecting tanks. shield 23. The device works as follows. The gas flow from the furnace with dispersed inclusions through the pipe 2 enters the first chamber 16, then the tube 17 encounters on its way, flows around them and, colliding with

5 by the side wall of the chamber 16, changes its direction by 90 °. Then, by hitting the bottom of the chamber (horizontal partition 15 or the mirror of the condensate liquid of the vaporous component assembled at the bottom) and changing its direction again, the flow exits through the slotted opening 9 into the next chamber, raised to the plate valve 10.. The amount of valve lift depends on the flow rate, while the gas velocity at the outlet from the slot 9 is approximately constant, i.e. the velocity does not depend on the flow rate. Since the weight of the lid is selected from the condition of maximum gas flow rate coming from this combustion furnace, the flow will raise the lid by a smaller amount as the flow rate decreases. At the minimum flow rate, the chamber operates in a pulsed mode. The lid will operate (open) when the chamber creates sufficient pressure to increase it and closes again until sufficient gas is accumulated in the chamber, i.e. clapping.

The arrangement of the valve 10 on the horizontal shelf 8 is such that the flow coming out of the chamber 16 is directed to the adjacent channel.

to the water-cooled tubes 17. In each next chamber 16, due to its configuration, the same trajectory of movement is reported to the flow. When colliding with water-cooled tubes 17, the vaporized component in the gas condenses and a thin film flows down over it, and the solid particles contained in the gas are separated from it due to inertia and are deposited on the liquid film, are retained by it and with it fall to the bottom of the chamber 16. The liquid vapors also condense on the cooled walls of the chamber 16, the condensate flows to the bottom of the chamber, carrying solid particles in the liquid layer with itself. When a layer of liquid at the bottom of the chamber 16 reaches the level of the overflow pipe 21, the liquid lining enters a connected hermetic receiving tank, which is separate for each chamber.

The heavy solids accumulate as sludge at the bottom of the chamber, which is periodically removed through the drain pipe 22 by feeding cleaning fluid into the chamber through the overflow pipe 21, removing the plug from the drain pipe 22 and connecting the latter to the waste container. Similar processes of condensation of the vaporous component and separation of solid particles from gases occur in each subsequent chamber. Coming out of the last chamber, the gas flow reaches the water-cooled tubes 17, the left wall of the housing 1, and then, flowing over the vertical partition 4, goes to the outlet nozzle 3, on its way there is a fender shield 23 that serves to prevent splashes from the gas flow and droplets blown off the surface of the liquid, if collected at the bottom of the housing 1.

Thus, by repeatedly changing the direction of the gas flow, creating a developed separation surface - condensation, and using it to retain and collect the separated solid particles.

the liquid formed during the condensation of vaporous components, in excess of the flow cross section of the gas stream, the proposed device makes it possible to achieve a significant increase in the cleaning efficiency in a wide range of gas flow variations.

Claims (4)

1. The device is for separation of high-temperature gases, containing a vertical case with inlet and outlet nozzles and installed in it chimneys and a vertical partition, not reaching 15 to the bottom of the case, which is designed to increase the cleaning efficiency in a wide range of changes in productivity gas, it is provided with an additional vertical partition, installed between the exit section and the main vertical partition, the main vertical partition being made with U-shaped in With the mortars, the horizontal shelves of which have slotted holes with plate-shaped valves, hinged from the side of the main vertical partition, and equipped with horizontal partitions, some of which are rigidly attached to the wall of the body, while others are placed in its ledges and attached to an additional vertical partition. , with the formation of series-connected chambers, while the bump is placed in each chamber and made in the form of vertical cooled tubes. 2. A device according to claim 1, characterized in that 5 that the vertical cooled tubes are arranged in a slush pattern. 3. A device according to claim 1, characterized in that the outer walls of the chambers are equipped with a cooling jacket. 4. The device according to claim 1, characterized in that 0, the top and the bottom of the body are jacketed.  ish L l l l f7. Ix u IS / I f .... / ..... J., .. L. ,,,.   f f f fff f f yrf f f f f afr a f f-f-raff f 7  73 // 12 10 9 (PUS.Z eleven 23