DE7301870U - WET LAUNDRY - Google Patents

Description

The innovation concerns a wet scrubber, consisting of a container partially filled with washing liquid into which the dust-laden gas to be cleaned can be introduced and one arranged in the container above the liquid level ending pipe receiving the liquid-gas mixture with impingement separators arranged in connection with its upper end.

Such Naßvräscher are already known in practice. Here, the one Flüssi keits _o-gas mixture-receiving tube formed as a venturi throat.

The performance of such a wet scrubber is determined by the washing energy certainly. This results on the one hand from the speed of the gas introduced into the pipe and on the other hand from the amount of liquid entrained by the gas introduced. In the known wet scrubbers, the washing energy can be determined practically not regulate at all.

The object of the present innovation is therefore to design a wet scrubber of the type mentioned in such a way that

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the washing energy can be regulated depending on the gas to be cleaned.

This object is achieved according to the invention in that at the lower end of the tube a protruding into the tube, lift and lowerable conical closure body is provided, and that further the distance between the lower end of the tube and the liquid level is adjustable. Through the conical closure body arranged at the lower end of the tube An annular gap is formed between this and the tube, which can be adjusted by raising and lowering the closure body. By this setting of the annular gap can change the speed regulate the introduced gas to be cleaned in the annular gap in any way, so that all speed ranges can be driven through, i.e. also those that are usually used in high-performance venturi washers.

By changing the distance between the lower end of the tube and the washing liquid level, either by raising and / or lowering the pipe or by changing the amount of liquid in the container, independently of the adjustable Speed, the amount of liquid entrained can be regulated.

These two features can be used to define in genru Way to regulate the washing energy as desired and thus achieve optimal gas cleaning under all conditions.

With this design of the device according to the invention, changing gas volumes and gas pressures can also be achieved through the setting compensated for the size of the annular gap or the change in the distance between the lower end of the pipe and the washing liquid level will.

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η ft 6th -J- • · ■ According to a another feature of the innovation is the cone angle of I. conical locking body preferably 15 °.

This ensures that the fluidic conditions change little when there is a change in the height of the cone.

The innovation will be explained in more detail below with reference to the drawing. The

Fig. 1 is a schematic representation of the wet scrubber and the

Fig. 2 to 4 partial representations of different designs.

The gas to be cleaned enters the cylindrical container 2 at 1, Bs is distributed around the outside of the pipe 3 and then exits again through the annular gap formed by the conical closure body 4 and the pipe 3. It pulls drops of liquid with it from the washing liquid 6 in the lower part of the container, which are more or less finely atomized depending on the gas velocity. An intensive exchange of momentum takes place between gas and scrubbing liquid, since the liquid droplets are accelerated from zero to gas velocity. The gas then flows upwards with the liquid to the separation system, which consists of baffle surfaces 5, 5 ¹ which are known per se. The liquid droplets are separated out by inertial forces. The conical closure body 4 is vertically adjustable. This allows the gas velocity in the annular gap to be changed without otherwise changing the flow conditions.

Another possible configuration is shown in FIG. 4, in which the tube 3 * is replaced by a hollow cone. The centrifuged washing liquid runs through the pipe 8 (or other suitable cross-section) back into the liquid reservoir 6. This eliminates the need for pumps and other conveyor systems.

The setting of the washing liquid / air ratio at given annular gap width is done by setting the liquid level and z ^ ar with fixed »pipe 3 by lowering or raising the fluid level or at constant liquid level by raising or lowering the pipe 3 * In each case this increases the distance between the lower end of the tube 3 »and the washing liquid level changed The exit of the cleaned gas takes place at 7

- Schutra claims -

73818761 ?. 5.7S

Claims (4)

Protection claims: 1 · Wet scrubber, consisting of a partially with washing liquid filled container, into which the dust-laden gas to be cleaned can be introduced, and one in the container arranged, ending above the liquid level, the liquid-gas mixture receiving tube with in the connection Impact separators arranged at its upper end, characterized in that at our end of the pipe (3) a raised and lowered conical spline body (4) projecting into the tube is provided, and that furthermore the distance between the lower end of the tube (3) and the liquid level is adjustable 2. Wet scrubber according to claim 1-, characterized in that the cone angle of the conical closure body is preferably 15 °. 3. Wet scrubber according to claims 1 and 2, characterized in that that to change the distance between the lower end of the tube (3) and the liquid level, the tube (3) can be raised and lowered. 4. wet scrubber according to claims 1 and 2, characterized in that that to change the distance between the lower end of the tube (3) and the liquid level, the amount of washing liquid in the container is adjustable. / / te