DE202012101251U1 - filter means - Google Patents

Abstract

Filter device for filtering fluid carrier material, comprising at least one guide channel (2, 3) having a filter housing (4, 5) with a mineral filter element, at least one microwave source (6) provided for microwave irradiation of the filter element on the at least one filter housing (5, 5) and one Collection arrangement (9, 10) for collecting volatile evaporation material produced in the at least one filter housing (4, 5) by microwave irradiation.

Description

The invention relates to a filter device for filtering fluid carrier material.

From the DE 10 2007 025 264 A1 it is disclosed a good to be cleaned, such. As crockery, but also air filter, in particular exhaust filter to apply microwaves. The microwaves are intended to dissolve, dissolve or remove adhering contaminants, with the microwave treatment essentially being disclosed as a pretreatment before an actual rinsing process or further purification step.

It is an object of the invention to provide a filter device of the type mentioned above, which allows recovery of the load material removed from the filter element or a product thereof.

In a filter device, the object is achieved by the features of claim 1. Advantageous embodiments will be apparent from the dependent claims.

The filter device according to the invention for filtering fluid carrier material accordingly comprises at least one guide channel, which has a filter housing with a mineral filter element. At or in the at least one filter housing or in its vicinity, at least one microwave source provided for microwave irradiation of the filter element is arranged, as well as a collecting arrangement for collecting volatile exhaust-steam material formed in the at least one filter housing by microwave irradiation.

By the microwave treatment, a change or a separate cleaning of the filter element is unnecessary, at least cleaning operations can be reduced with respect to the filter element. By mineral filter elements are meant for the invention concerned here in particular filters for the purification of exhaust air, for water purification, wastewater treatment, filters for combustible dusts, diesel particulate filters or ceramic membranes of ultrafiltration systems. A filter element can consist of several filter sub-elements, which can be composed of different filter materials. The use of microwave irradiation can also be used as a replacement for TNV systems (thermal afterburning).

It is particularly efficient to provide for the carrier material to be filtered at least two separate guide channels, each comprising a filter housing with filter element. If cleaning of the filter element takes place in one of the guide channels, the carrier material can be guided over one or more other guide channels.

The collection of the evaporation material allows its recovery. If the loading material is hydrocarbon-containing, at least part of the exhaust-steam material can be recycled in a particularly advantageous manner.

The filter device according to the invention may also comprise means for supplying additives to the filter housing. These agents may e.g. comprise a supply line with a valve, via which, starting from a suitable source of the additive is introduced. It may be advantageous to design the valve controllable, in particular via a motor. The additive may e.g. Be water, especially in the form of water vapor. This is e.g. then particularly advantageous if the loading material, although carbon for intended recovery purposes not enough hydrogen or water content and also the support material can not deliver this. Such a loading material may e.g. Carbon black, especially soot from fuels, e.g. Diesel soot, his. For larger engines, such as marine engines, 30 kg and more soot per hour can occur.

The loading material is at least partially volatile and optionally also cracked by the microwave application. If water vapor was added to the filter housing, this is largely insensitive to the microwaves used. The volatile cracked or uncracked stress material is referred to as the exhaust vapor material. The withdrawn evaporation material and, if present, the additive, e.g. Steam, can be advantageously fed to a plasma burner and reformed there to a synthesis gas. If necessary, the synthesis gas is a gas scrubber, z. B. for removing unwanted components, such as sulfur or chlorine to undergo.

The synthesis gas can then be used by a downstream combustion chamber or a motor to generate energy. The generated energy can be used in particular for the operation of the filter device.

Energy not required for the operation of the filter device can be stored or otherwise used. For this purpose, it may be advantageous to have means for capturing, storing and / or otherwise processing the excess synthesis gas, e.g. after its compression, or else means for storing or further processing the excess energy form generated by means of the burner and / or motor, e.g. Electricity, provide.

In the case of a filter device for exhaust air, in which the exhaust air leads by settlement to a filtering of about 1 kg of oil per hour, in continuous operation, an annual usable fuel amount of about 8.5 tons can be achieved.

Furthermore, it may be advantageous to provide a control for the microwave source with which the power and / or the frequency of the microwave source can be adapted to the type and concentration of a loaded material collected by the filter elements.

In the following, the device according to the invention is illustrated by means of a scheme.

A carrier material, for. B. with hydrocarbonaceous loading material, eg. B. in vapor form or in the form of an aerosol, polluted industrial exhaust air is via an exhaust manifold 1 on two guide channels 2 and 3 distributed. In every guide channel 2 respectively. 3 is a filter housing 4 respectively. 5 arranged, each one not shown separately here, suitable filter element, for. B. a mineral filter bed having. A microwave source 6 comprising a microwave generator 7 and a microwave transmitter 8th , is provided in the filter housings 4 and 5 arranged to apply filter elements with microwaves.

The guide channels 2 and 3 can be closed. For example, for the filter housing 4 For the purpose of cleaning the filter element therein, it is provided with microwaves, the guide channel becomes 2 closed and the exhaust air can through the guide channel 3 be directed. Conversely, the guide channel 3 closed and the guide channel 2 is open when the filter element of the filter housing 5 is charged with the microwaves and cleaned.

The microwave application causes the hydrocarbonaceous loading material to volatilize and / or crack in volatiles. The volatile loading material or the cracked material is referred to below as evaporation material. The evaporation material is via a collecting arrangement and their connected exhaust steam lines 9 respectively. 10 a plasma reactor 11 fed.

The filtered exhaust air is discharged through one or more separate from the collection arrangement and not shown in the figure outputs in the environment.

In a plasma reactor powered by a plasma generator 11 is fed, the Abdampfmaterial is reformed in a plasma flame to synthesis gas.

The synthesis gas is then placed in a gas scrubber 13 subjected to gas scrubbing and thereafter in a gas compressor 14 compacted. About a gas engine 15 can then be a generator 16 used for power generation. The energy generated can then be used at least in part for the operation of the filter device.

LIST OF REFERENCE NUMBERS

1

exhaust manifold

2

guide channel

3

guide channel

4

filter housing

5

filter housing

6

microwave source

7

microwave generator

8th

microwave transmitter

9

Abdampfkanal

10

Abdampfkanal

11

plasma reactor

12

plasma generator

13

Gas washing place

14

gas compressor

15

gas engine

16

generator

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102007025264 A1 [0002]

Claims (12)

Filter device for filtering fluid carrier material, comprising at least one filter housing ( 4 . 5 ) with a mineral filter element having guide channel ( 2 . 3 ), at least one filter housing ( 5 . 5 ) at least one provided for microwave irradiation of the filter element microwave source ( 6 ) and a collection arrangement ( 9 . 10 ) for collecting in the at least one filter housing ( 4 . 5 ) by means of microwave irradiation volatile volatile material. Filter device according to claim 1, characterized by at least two parallel to a carrier material distributor ( 1 ), each one of the filter housing ( 4 . 5 ) with filter element having guide channels ( 2 . 3 ), wherein each filter element is irradiated with microwaves. Filter device according to claim 2, characterized in that the guide channels ( 2 . 3 ) are each closed against the further influx of carrier material. Filter device according to claim 2 and 3, characterized by means for controlling the distribution of the carrier material such that the carrier material supply to at least one of the filter housing ( 4 . 5 ) and the carrier material via the or at least one of the non-microwaved (n) filter housing ( 4 . 5 ) is guided as soon as in this at least one filter housing ( 4 . 5 ) arranged filter element is exposed to microwave radiation. Filter device according to one of the preceding claims, characterized by means for supplying an additive to the filter housing. Filter device according to claim 5, characterized in that the additive is water vapor. Filter device according to one of claims 1 to 6, characterized in that the collecting arrangement ( 9 . 10 ) a plasma torch ( 11 ) is subordinated to the conversion of hydrocarbon-containing Abdampfmaterials in a synthesis gas. Filter device according to claim 7, characterized by means for compression of the synthesis gas. Filter device according to claim 7 or 8, characterized by a plasma torch ( 11 ) downstream burner, motor or power generator, in which the synthesis gas for the utilization of the energy contained therein is combustible. Filter device according to claim 9, characterized by means for recycling at least a part of the energy generated with the synthesis gas to the process for exhaust air purification. Filter device according to claim 9 or 10, characterized by a gas scrubber ( 13 ) suitable for disposal in an exhaust stream produced by the burner, such as sulfur or chlorine. Filter device according to one of claims 1 to 11, characterized by a controller which allows adjustment of the power and / or the frequency of at least one of the provided microwave sources on the type and concentration of a loaded material collected by the filter elements.

Images