DE1278405B - Boiler filter with central truebuilt in the boiler bottom - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. CL:

BOId

German class: 12d-20

Number: 1278 405

File number: P 12 78 405.3-27 (S 102795)

Filing date: March 26, 1966

Opening day: September 26, 1968

The invention relates to a boiler filter with a central sludge inlet and arranged in the boiler bottom laterally attached filtrate drain as well as a removable from the filter vessel and by means of a threaded spindle mounted in the boiler cover compressible filter pack, the latter consisting of a lower clamping plate that can be placed on the sludge inlet with a central hole, one for the attack the threaded spindle exposed upper clamping plate and several filter plates arranged between them consists of a sieve plate each carrying the filter layer and a support plate that is continuously inclined towards the outside.

With a filter of this type, the filter tank is usually arranged vertically and its The filter package is usually lifted out of the filter tank by means of a pulley system and reinserted is, the two clamping plates delimiting the filter pack are designed largely differently. In particular, only the lower clamping plate has the necessary connection for the central one Liquid inlet. This design is also common in known tank filters, the clamping plates of which are in have substantially the same external dimensions. In the case of the known trainings, it must now be the filter pack be dismantled to clean the filter plates and to renew the exhausted filter layers, then the filter plates removed from the package and cleaned must first be stacked separately up to the lower clamping plate, which is connected to the central liquid inlet of the filter vessel is released. Only then can the filter package be put together, with the previously performed separately The removed filter plates are transferred to the lower clamping plate that was released last and again need to be stacked.

The invention is based on the idea that the intermediate stacking of the filter plates Conditional labor and time can be avoided if both clamping plates as both upper and lower Plate can be used and the filter pack can be stacked on it. These for easier handling of the filter package as well as for quick readiness for use of the required filter device leading measure can be achieved according to the invention in that the known per se Way the same external dimensions having clamping plates each with a central inlet channel for the pulp adapted center hole and with a central bottom flange of the Filter vessel adapted sealing flange are provided and on the surface facing the plate pack Have elevations, which in the filter package to

Kettle end with arranged in the kettle bottom
central turbidity inflow

Applicant:

Seitz works G. m. B. H., 6550 Bad Kreuznach

Named as inventor:
Lothar Stöbe, 6551 Gutenberg

Bottom arranged clamping plate for supporting a with the clamping plate surface one provided with openings Filtrate space forming filter sieve and with the clamping plate arranged above, its central bore by a detachably inserted pressure piece

ao can be closed, for the installation of a central inlet channel that closes the top and the sump area serve for the adjacent filter plate forming chamber.

The invention is illustrated in the following description on the basis of an exemplary embodiment in FIG Drawing explained. It shows

F i g. 1 the boiler filter with filter package in a sectional view,

2 shows a clamping plate in perspective,

F i g. 3 and 4 the stacking and reassembling of the filter package in the simplified Series.

The filter consists of a filter vessel 10 with a liquid-tight closing lid 11 and the filter pack inserted vertically in it. In the cover 11 is a threaded spindle protruding into the interior of the boiler 12 stored. It has a handle 13 at the free end. The boiler bottom opposite has a central inlet channel 14 for the cloudy liquid and an outlet 15 for the filtrate. Of the Inlet channel 14 is located in the middle of the floor and is provided with a flange 16. The sequence 15 is arranged laterally offset.

The filter pack supported on the flange 16 consists of a lower and upper clamping plate 17, 18 and composed of several filter plates stored in between. Both clamping plates 17 and 18 are like Fig. 2 shows, each with a central bore 19 and provided with a flange 20 on the side facing away from the filter pack. The hole 19 and the Flange 20 are the inlet channel 14 and the bottom

809 618/452

adapted to the flange 16. The inclined surface 21 of the plates 17, 18 facing the plate pack is with a plurality of radial elevations 22, a circular edge 23 surrounding the bore 19 and an outer edge 24 for supporting a sieve plate 25 is provided. The sieve 25 forms with the plate surface 21 an Eiltratraum 27. Its openings 26 made in the edge 24 are directed towards the filter vessel 10. With regard to the external shape, the height and the diameter as well as the dimensions of the bores 19 and of the flange 20, both plates 17,18 are completely identical. The filter plates each consist of a support plate 28 and an associated screen plate 25, which are stacked on top of one another. Any support plate 28 has an opening 29 leading to the inlet channel 14 and forms with the loosely placed sieve plate 25 of an adjacent support plate 28 and a filter layer 30 inserted between them a dream space 31. The dream space 31 is on the opposite side of the sieve plate 25 in the area an adjacent support plate 28 a filtrate space 32 opposite, the several to the interior of the filter vessel 10 has directed openings 33. The between the lower clamping plate 17 and the support plate -28 of the adjacent filter plate 25.28 in addition arranged sieve plate 25 forms a further filter element with its filter layer 30. By an annular chamber serving as a septic chamber and closing the inlet channel 14 at the top

34 another filter element is also formed in the area of the upper clamping plate 18. The entire The filter package is secured by several tension screws acting on the circumference of the clamping plates 17, 18

35 held together. In the central bore 19 of the upper clamping plate 18 is finally a contact pressure the threaded spindle 12 receiving pressure piece 36 is detachably inserted.

The cleaning of the individual parts of the filter package while renewing the exhausted filter layers 30 is usually carried out outside the filter vessel on a particularly suitable one for cleaning Job. For this purpose, the entire filter package is removed after loosening the threaded spindle 12 and removing it of the lid 11 and the pressure piece 36 with the help of the pulley system, not shown, from the Boiler 10 lifted out and placed in the appropriate place. After loosening and removing the lag screws 35, the upper clamping plate 18 is then lifted off the package, cleaned and, as shown in FIG. 3 shows, pivoted by 180 ° deposited on the ground. The chamber 34 then removed from the filter pack is set aside after cleaning. The sieve plate 25 then becomes the topmost Support plate 28 lifted, cleaned and provided with a new filter layer 30 immediately on the prepared one Clamping plate 18 placed. The support plates are now stacked in alternating order 28 and sieve plates 25 of the filter plates are after the cleaning carried out in detail and Layer renewal immediately stacked on the clamping plate 18 (Fig. 4). On the previously the lower clamping plate 17 associated sieve plate 25, which after completion of the stacking the top sieve plate then the chamber 34 is put in place and the thus renewed filter pack is passed through the Clamping plate 17 closed, which now forms the upper clamping plate. That by means of the lag screws 35 secured filter package is then inserted into the filter vessel 10 with the help of the pulley system. After inserting the pressure piece 36 into the bore 19 of the upper clamping plate 17 and applying of the lid 11 on the boiler 10, the filter pack is compressed by the threaded spindle 12 so far, that the filter layers 30 clamped between the filter plates 25, 28 as inner ones and outer edge sealing become effective. This means that the filter is ready for use for the filtration the pulp from the inlet channel 14 in the indicated arrow direction through the openings 29 in the Dreams 31 of the individual filter plates 25, 28 and flows into the upper chamber 34, followed by the through the filter layers 30 resting on the sieve plates 25 and as filtrate via the openings 26, 33 the filtrate spaces 27, 32 into the container 10 and from there to the outlet 15.

Claims (1)

Claim: Boiler filter with a central sludge inlet arranged in the boiler bottom and attached to the side of it Filtrate drain and one removable from the filter vessel and using an im Boiler cover mounted threaded spindle compressible filter pack, the latter made of a lower clamping plate that can be placed on the pulp inlet with a central hole, one exposed to the attack of the threaded spindle upper clamping plate and several arranged between them Filter plates made up of one sieve plate each carrying the filter layer and one continuously following outwardly inclined support plate, characterized in that the known in itself Way the same external dimensions having clamping plates (17,18) each with one the central inlet channel (14) adapted for the pulp central bore (19) and with one of the central bottom flange (16) of the filter tank (10) adapted sealing flange (20) are provided and on the face (21) facing the plate pack have elevations (22, 23, 24) which at the clamping plate (17) arranged at the bottom in the filter pack for supporting one with the clamping plate surface a filter sieve (25) forming a filtrate space (27) provided with openings (26) and at the clamping plate (18) arranged at the top, the central bore of which is replaced by a detachably inserted The pressure piece (36) can be closed, in order to create an upwardly closing one of the central inlet channel and the chamber (34) forming the space for the adjacent filter plate (25, 28) to serve. Considered publications:
German Auslegeschrift No. 1115 221;
French patent specification No. 1 073 292. For this! Sheet of drawings 809 618/452 9.68 © Bundesdruckerei Berlin