Particle filter with ultrasound device

Abstract

A filter device (1) according to figure 1 for suspended materials (2.3) having a particle size of 400 pm to <=500 microns in flowing fluids (2.2) having a volumetric flow rate of 10-2 mL / sec to 105 mL / sec, comprises a device (2) for reduction (>99%) in the specific particle count (N / Vt) of suspended materials (2.3.1) with particle sizes from 1 nm to 50 nm and of suspended materials (2.3.2) with MPPS particle sizes from >= 200 nm to <= 400 nm by means of an energy input from 0.25 W to 1 kW by means of ultrasound waves stabilized with electronic feedback loops and their harmonics (2.4.2) at a frequency of 1 kHz to 800 MHz and a power level of 40 to 250 dB in the fluids (2.2) or in bodies (2.6) attached thereto, so that fluids (2.2.1) with suspended materials (2.3.1) and / or with suspended materials (2.3.2) having a specific particle count (N / Vt) <= 20% and with suspended materials (2.3.3) having particle sizes of >=50 nm to <= 200 nm and / or with suspended materials (2.3.4) having particle sizes of >= 400 nm to >1000 nm having in each case a specific particle count (N / Vt) can be obtained to >= 80%, further comprising a flow pipe (2.1) having a wall (2.1.1) which, on its outer side (2.1.1.1), its inner side (2.1.1.2) and / or in the wall (2.1.1) has pairs of mutually opposite exciters (2.4.1) of longitudinal waves and their harmonics (2.4.2) and / or reflectors (2.4.3) opposite the exciters (2.4.1), through which pipe the fluids (2.2) and (2.2.1) can flow, a delivery device (2.5) for the fluids (2.2) and (2.2.1) and a connection (2.7) of the flow pipe (2.1) to a filter (3) of a smallest filterable particle size of 50 nm to 1000 nm, which keeps the specific particle counts (N / Vt) of the suspended materials (2.3.1), (2.3.2), (2.3.3) and (2.3.4) in the filtered fluids (2.2.2) to below the detectable limit or to 0.1%, where N = particle count, V = volume [m3], t = time [h], and the indicated percentages being in relation to the respective specific start counts (N / Vt) of the respective suspended materials = 100%; and filtration method, uses and equipment and plants with filter installations (1).

Description

technical field [0001] The invention relates to a filter system for suspended solids having a particle size of from 400 pm to ≦500 μm and for nitrogen oxides. [0002] The invention also relates to a filtration method for removing suspended matter and nitrogen oxides with a particle size from 400pm to ≤500μm from gaseous, liquid and gelled fluids. [0003] Furthermore, the present invention relates to the use of said filter system and filtration method in various technical fields for the removal of environmentally harmful, unhealthy and / or toxic suspended matter with a particle size from 400pm to ≤500μm from fluids . [0004] Last but not least, the invention relates to devices and systems comprising said filter system. Background technique [0005] Filters for suspended solids are filters used to separate particulate matter from the air. It is a depth filter and separates suspended solid particles with an aerodynamic diameter of less than 1 μm. It is used to filter out ...

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Problems solved by technology

The patent also states that electrostatic precipitators are largely ineffective at separating particles <2 to 3 μm in size

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