DE2013499C3 - Arrangement for a cyclone separator with an emptying chamber - Google Patents

Description

2. Arrangement according to claim 1, characterized extremely recently in the cellulose industry indicates that the emptying opening (7) has become the important since it has become necessary for the so-emptying chamber Has a diameter of 25 as much as possible to prevent cellulosic fibers which is larger than the diameter of the outlet- can be emptied into lakes and rivers, where there is a water (6) of the cyclone separator into the drainage contaminant form.

chamber is. Attempts have been made to avoid cyclone

3. Arrangement according to one of the preceding separators to be controlled in different ways, with claims, characterized in that a 30 play weave to provide the emptying chamber with a radial stop plate (8) for the incoming phase in the aligned emptying opening. The emptying chamber (3) is provided, which has also been attempted, a throttle device on coaxially to the outlet (f>) of the ⁷ yklonenenscheep- the emptying opening of the emptying chamber on the other:! N the emptying chamber is closed. assign to a suitably set counter

4. Arrangement according to claims. 3, characterized by this standing against the current of the difficult phase, that a partition (13) with a fen, this device sometimes adjustable circular opening is arranged, which is coaxial. The various solutions of this type are not to the stop plate (8), and that the separation is satisfactory because the throttles hawand the inclination in the emptying chamber between the ben to clog the emptying opening, whereby Stop plate (8) and the fixed 40 then the free passage too small .vird.

Member (12, 12 a) is arranged. Batteries are often arranged in parallel from

5. Arrangement according to claim 3 or 4, there used cyclone separators, so-called Mehrdurch characterized in that the stop plate (8) fold cyclone separator. With such systems it is with a cylindrical, coaxially arranged, attempts have been made to thereby reduce the deposition process Flange (14) is provided on the side which 45 control that the emptying rate from an opening Emptying opening (7) of the emptying chamber for the separated heavy phase, mer knows. which is common to the cyclone separators arranged in parallel, controlled and so a counter pressure

without throttling the emptying openings of the

50 individual cyclone separators are built. This Attempts are, however, without special arrangements

The invention relates to an arrangement where a _ge n has not been successful. The reason for this be-cyclone with a _ste at the inlet head ht is that the deposition process is very empfindkoaxial arranged outlet pipe for the purified Hch, so that the individual separator individual in a light phase and a coaxially arranged 55 multi-cyclone Abschei-emptying chamber for a severed heavy deformation due to even a small individual phase at the end that the infeed head provides for counter-mechanical differences. It is therefore dependent on which the separated heavy load must carefully calibrate each individual separator in one phase in an axial direction to an Entlecrungsöff- Mehrfach-Zyklonenabscheider to calibrate the emptying chamber, in order to ensure a uniform turning movement in the whole system in order to obtain the axis of the exhaustion camshaft result. This is a disadvantage with mer executes and such a helical cyclone separator known so far, which Bahr follows. Causes costs and difficulties.

Cyclone separators are used in many ways. In an arrangement that has become known,

used. You will be accordingly British Patent 705,700, particularly in large training 6 ₅

measure in the cellulose industry for cleaning super- helical guide vanes in the vortex chamber

Spensions and cellulose fibers are used. In addition, a cyclone separator, so not in his

sequence is used in the following description as an emptying chamber, and the outlet opening

ν.

let 4 do

* «£ 2 £ ^ Πίΐη ^ ti t * Ί ¹ ^ ^CI . ^{1U> l mleetun} ^ - emptying chamberS through an Au, let6. Be. the chamber for a / ykloncnabdcr _{so from / ubi} , _ _geÄiglen . _{AusfiUiningsfonnen according to the} invention

h ⁿ ; ^ n ^ h ^ ι ''' ^CO "u ^ai ' ^{rabsctrcnmen the} emptying chamber with an emptying offichwuyi phase to a desired minimum to» opening7 for the separated heavy phase, probably without opening the Lntlec- _wc i _t he is arranged coaxially to the outlet 6 approximately chamber throttle;. u need, so that a VCR as is known, in the swirl chamber 2 em plug the opening is avoided generated _sch "e l rotating vortices..! which turns in a waterer the subject of the invention is .cm of the direction indicated by the arrow * is a sufficiently large pressure drop in the discharge, _s ; by the action of centrifugal force, the fcunmer of a z: ymone separator with a different- heavy phase from the light phase more separated device than mntek throttles at the discharge and forms ningsolfnung near the wall of the vortex chamber so that the separating func- a layer. The vortex has an axial movement for the separator nic ht dependent on low downward, but in the vicinity of the outlet 6 is the peculiar, mechanical qualities. 2 = slight phase an upward axial Beweib ν M ^{ISE "mo} ^ ^lldl · ^U! '^ ·» »Uung perform a majority. In the" ^r of the swirl chamber Itte fold cyclone / u control. Afar form a Air or gases that are removed from the liquid by a coarse number of separators umia .'- i. In which the are separated, a core around the axis of the vortex counterpressure in an autnahniekaminer, which the chamber.

common to individual separators. with the help of a 2; The layer of the heavy phase, which is the only original organ in the emptying line of the intake chamber formed next to the wall of the vortex chamber, is controlled _1S1 . moves further downwards and rotates back up the out further object is, there 3. ER- axis of the discharge chamber, the heavy phase possible that Entleerungskainmer with no negative flows so _m axial direction to the Entleerungsöfftigung Abscheideergebnisses with such a large 30 nunu7 the Entleeruncskainmer "and at the same time carries out free evacuation opening / u provided, even greater proof of its rotation. As a result, this phase flows as the outlet of the vortex chamber, so that no possible helical path can occur The solution to these problems is, according to the emptying chamber according to the invention, it then meets the invention that in the emptying chamber in 35 a "member 12 or 12", which is arranged in the emptying at a distance from its emptying opening and chamber, and a surface has, coaxially with the chamber a read attached member which, sat Before, in the direction of rotation of the phase, an inclination (1- or 12 "), which has one or more inclinations, which consists of the inclination of the cube-shaped guide wings, the inclination of which is opposite to that of the trajectory of the phase. This causes the helical path of the severed phase 40 to cause a force / in a direction / opposite to which is inserted. ken. which is opposite to the direction of the axial movement of the Lm to the re-penetration of the particles of the heavy phase. In the embodiments shown in the drawings in the ren phase to prevent the vortex chamber, this is directed upwards according to a special embodiment of the invention and exerts a counter pressure a stop plate for the incoming phase in 45 against the pressure provided by the emptying chamber , which pushes the coaxially heavy phase in the downward direction towards the emptying chamber opening provided in the emptying chamber. As a result, and in a further embodiment of the invention, a large pressure gradient is obtained in the emptying chamber partition with a circular opening. By appropriately forming the hen, which is coaxial with the stop plate in the Entice- 50 part 12 or 12 α , it is possible to have a counterpressure chamber between the stop plate and the desired size in each separate I-ali and a lest attached member. to obtain a corresponding pressure gradient, without The invention is explained in more detail in the following by means of a guide opening 7 of the detachment chamber and examples with reference to the drawings. throttle. "

In the drawings, ₅₅ shows the effect that can be achieved with the mentioned link. FIG. 1, a side view of a cyclone section, can best be explained as follows. It should be according to the invention. The lower part below which is possible i. an axial back pressure and an fnt line III is shown in vertical section. Speaking pressure drop without throttling the Ent-Fig. 2 shows the arrangement according to Fig. 1, from above overall lccrungsöffnung to obtain the Entlcerungskammer, ^{se 'en' 6} ° when a centrifugal mil an open Fig. 3 shows the vertical section below the line III pump rotor or a screw pump with the Entin Fig. 1 in enlarged scale, lecriing opening connected and so arranged as- Fig. 4 and 5 further embodiments of the Er- in, in order to find the emptied heavy phase in the axial direction. which is lower than the pressure, which is shown and its vortex chamber 2. The emptying chamber is marked with the heavy phase towards the emptying opening for axial evidence, there is also a quick

executes movement, the same result could be obtained by arranging a fixed impeller in the vent opening, for example. the slope of which is opposite to that of the helical path of the ^{phase which ends in the entice 1.} The relative movement between the fixed impeller and the rotating phase then builds up the desired counter pressure and this was found according to the invention.

In the embodiment according to FIG. and λ exists said member of a helical Fülirungsflügel 12, the slope of which the helical cock is opposite to the emptying phase. Hr consists of a metal strip, which is attached to the cylindrical wall of the venting chimney with the help of a weld is.

In the embodiment according to FIG. 4, the link consists of two radially arranged wings 12 ", which almost resemble Propcl lc rf I iigcl η. In this arrangement a circular stop plate 8 is also provided, which is known as such and is coaxial with outlet 6 of the cyclone separator. This stop plate acts as an escapement the axial movement of the emptying phase and increases together with the wings 12 " their control function. The stop plate is supported by a column 9.

Ils sees the possibility that some particles of the separated heavy phase will rebound through the outlet 6 after hitting the guide wings 12 or Ma and will mix into the light phase, which is emptied through the outlet pipe 5. This is avoided by placing a perforated partition between the stop plate 8 and this link. Eline such partition wall i3 is shown in FIG. 5 shown. It is provided with a circle-shaped opening Mti , which is arranged coaxially to the Enllcerungskammci 3. In the embodiment shown, the diameter of this opening is smaller than that of the stop plate 8. As a further precautionary measure against the penetration of the particles of the heavy phase into the vortex chamber, the stop plate 8 can be provided with the cylindrical flange 14, which is coaxial with the stop plate and on whose side is arranged. which points to the vent 7. This flange 14 then forms a labyrinth together with the partition 13, which means that it is difficult for the particles of the heavy phase to rebound.

Dii: The invention is not limited to the embodiments described above. So must the arrangement not be oriented as shown in the drawing. Your major axis can be, for example be horizontal. The arrangement as a whole can also be reversed. Further Modifications are also possible. For example, the partition 13 can consist of a plate, which is provided with evenly distributed smaller openings. The guide wings, which the Aiifwärlsdruck can build up differently than in the be arranged as described above. They can also be arranged in a discharge line be which the separated phase from the emptying chamber leads: however, in such a case the line becomes tier as an extending part Venting chamber viewed.

1 sheet of drawings

Claims (1)

game referred to the terms in the claims: cellulose industry. In a suspension of ZeHulosefasero were 1. Arrangement in a cyclone separator with impurities, for example in the form of a coaxially arranged at the inlet head g bark particles, metal particles, sand and the like Need to drain. Otherwise they will cause stains on the paper chamber for a separated heavy phase, which is produced from the fiber suspension at the end opposite the inlet head. If the suspension is treated in a cyclone exhaust which separates the separated heavy phase, the impurities in an unaxial direction to an emptying opening of the gene will form a heavy phase, which consequently flows from the emptying chamber, being a rotary light phase, which detaches the cellulose fibers holds around the axis of the emptying chamber, can be separated. It will be understood that by carrying out and following a helical path the flow of the heavy phase should be so controlled, indicated by a in FIG severe phase emerges. Emptying opening and coaxial with the chamber Otherwise there will be losses. fixed link (12 or 12 β), soft On the other hand, the flow of the separated phase loaded from one or more guide wings must be controlled in such a way that that arises whose slope of that of the screwed light phase leads to a satisfactory shape separated phase is cleaned contrary to degree. Furthermore, the need is set. a way to control the cyclone separator