DE3011622C2 - Disc pressure filter - Google Patents

Description

This is achieved in the case of a pressure disk filter of the type described in the introduction according to the invention achieved that the cake discharge device from a

The invention relates to a disc pressure filter with 2s nem Ausräumerstern with a plurality of Radialarim Lid and central shaft mounted in the bottom, with men and that on each arm de * clearing centrifugal cake discharge device, consisting of .sterns at least one outer and one inner outer Ausräumerschieber, which are arranged with the outer edge merschieber.

in advance and from the inner clearing slide, which with the order for a wide variety of residues is optimal

The inner edge leads and can be reached with a discharge opening in the discharge time, according to a further discharge housing base, design of the invention, the discharge slides are a-According to DE-GBM 60 29 52? a disc adjustable is arranged on the arms, the size of the pressure filter of the type mentioned at the beginning being known, leading edges being the same or different.
which is fixedly arranged on the filter shaft. The advantages achieved by the invention consist in the fact that at least 35 each are essentially that in the bottom part of the filter housing there is a slide attached on the outside and inside. This a residue flow is achieved, which is its maximum discharge device in a simple manner with the FiI material height on the radius of the discharge opening has terhohlwelle drive-connected and rotates during The residue is not as in the previously known of the centrifugal phase with the high speed of the FiI versions alternately outside to inside and bottom panels. The externally attached slide, which throws the 40 upside down in order to sweep over the discharge opening when accidentally crossing it, falls into the discharge opening in the direction of rotation or is pushed towards the front, in order to move the residues into the discharge opening, but rather it becomes steady in the circular surface tion to press when overflowing the same. To be performed at over the discharge opening. It then falls automatically into the discharge opening within a relatively long time.

short time no excessive forces on the discharge 45 An embodiment of the invention is to act in the slide, are shown in the discharge slide drawing and is provided in the following more circular openings, ie a part of the written. It shows
Residues enter the space F i g through these openings. 1 disc pressure filter in section,

behind the discharge slide and is not in the direction of F i g. 2 Horizontal section above the scraper,

Discharge opening moved This type of arrangement of the so F i g. 3 variant of the clearer in the plan view
Discharge slide causes a continuous after In- The cylindrical filter housing 1 in Fig. 1 is a

Inward and outward hurling of the residues, the only pressure vessel that is vertical The filter pack is involved when sweeping over the outer slide is a central shaft 2, which is in the cover and in the is supported via the discharge opening from the filter housing conveyed bottom of the housing and on which the filterdert will. 55 discs 3 are lined up with intermediate seals.

It is also known (DE-GBM 68 09 712) that after completion of the filtration, the Filterschci-

in the floor space of disc pressure filters, which are also covered with filter residues, the cake. The Ku centrifugal cleaning filters are known, rotating surfaces can now be post-treated and then discharged discharge blades can be arranged, which in contrast to the. To discharge the cake, the filter pack rotates much more slowly due to the filter shaft. With the help of μ an external drive is set in rotation, so that that of an additional gear, usually a planetary cake located on the filter discs 3 as a result of the gear, such a speed is selected that the centrifugal force outwards against the wall of the housing 1 Only such centrifugal force is given to residues, which is thrown. From here the cake falls down so that it still falls slightly and thus into the and collects on the bottom 4.
Reach the discharge nozzle of the filter vessel. The pre-s5 Under the feed package is the evacuation of device parts with different star 5, which is tied to the central shaft 2 with rotational speeds in the filter housing leading to relative movement. The conditions attached to the evacuation star, ie additional seals in the filter housing, evacuation slides 6, 7, 8 are on their lower edge

H with minimal tolerance of the shape of the housing bottom 4

y adjusted

g The evacuation slides transport the

§ the bottom floor collecting cake in the loading

Η described way to the cake discharge opening 9.

I The cake falls out of the housing through this opening.

g According to Fig. 2 the filter cake is through the outer

Eg discharge slide 6 in the direction of rotation to the discharge

% circle and through the inner slide 7 in the direction of rotation

S also promoted to the discharge circle, so that on the

• Ά Radius of the discharge opening with a flow of solids

% of the maximum material height is reached.

Ii After F i g. 3 is z. B. through the additional

i: l merschieber 8 the transport of the cake on the outlet

-v- contract group supported

For this purpose 3 sheets of drawings

20th

25th

30th

35

40

50

Claims (2)

1 2 'den absolutely necessary. Claims: In disk pressure filters of the type mentioned, a large number of filter disks are mounted on a hollow shaft. 1. Disc pressure filter with in the lid and in the board. Over time, the filter discs are covered with the mounted central shaft and the material suspended in the liquid . Clearing slide that leads the outer edge The residues on the filter discs fall into and out of the inner clearing slide. the one with gel as a pulpy to solid mass.
the inner edge leads, and with a discharge tion in the bottom of the case, thereby marked 10 claim, it is necessary to remove the residues draws that the cake discharge device temporarily out of the housing of the pressure disc filter to remove from a clearing star (5) with a large number of in order to shorten the downtime. at Radial arms and that each arm of the would have to be for a longer cleaning period Ausräumersterns (5) at least one outer (6) and a continuous ritration a further filter as an impairment inner clearing slide (7) are arranged. 15 should be planned inebsfiltcr. 2 disc pressure filter according to claim 1, characterized The invention is based on the object of a gat- characterized in that the discharge slides (6,7,8) design disk pressure filters in such a way that adjustable on the arms are arranged, with that a continuous even discharge of the abdas Measure of the leading edges equal or thrown down residues is granted without a different isf. 20 part of the residue several times on the filter housing bottom and rotates around the filter axis of rotation