Devices, systems and methods are disclosed which relate to using a wet foam elution method for removal of particles from a flat filter. Particles are captured from the atmosphere onto the flat filter. The flat filter is then placed into an extractor which passes a stream of wet foam through the flat filter. Expansion of the foam works to efficiently remove captured particles. The foam flows from the filter along with the captured particles into a sample container. Once in the sample container, the foam quickly breaks down leaving an analysis ready liquid sample.

Cleanable filters and methods of cleaning filters are described in the present application. The cleanable air filter includes a housing and a filter element installed in the housing. The filter element is configured to filter an operating fluid in a given application. The filter element is cleanable in-situ in the installed condition in the housing. The cleanable air filter further includes a cleaning fluid applicator configured to apply a cleaning fluid to the filter element while the filter element is in the installed condition in the housing such that the filter element is cleanable without being removed from the filter housing.

The self-propelled high-performance shot-peening machine combined with a scarifying machine, for the treatment of coatings surfaces of bituminous conglomerate, asphalt, concrete or metal, is composed of a shot-peening unit (A-A), a suction, filtering, separation and storage unit (B-B), a scarifying unit (C-C) and a mechanic-magnetic unit (d-D) coupled together.

It comes typically to solve the problem of the removal of the new typologies of drop or lamellar road markings, with subsequent regeneration of the macro and micro roughness of the road coating,

subjecting the surface to be treated to two treatmentsintegrated milling and shot-peeningby a single pass, adapting itself to the road profile and guaranteeing to remove only the protruding part of the road markings, subsequently immediately regenerating the roughness and microroughness of said surface, noticeably reducing the critical factor of the working time, eliminating the possibility of error in the application of the treatment.

The basic principle consists in utilizing the six-drum scarifying machine 20, 20 only to remove the protruding parts without breaking into the road coating, the number of rollers of the drums 21, 22, 23, 24, 25, 26 and the rotation speed being automatically chosen by the programme to optimize results and working speed; same principle applies to the shot-peening, where the rotation speed and the quantity of abrasive can vary, aiming to the highest yield and speed, the whole managed by a system software implemented by an electric device like PLC, Tablet, Smartphone or Wi-Fi Server-Router.

It solves also the problem of the recycling of the grit by its overheating with sticking of the bituminous, gummy materials and others, performing their removal by a single pass and their final decontamination from the stuck bituminous materials C in a further subsequent sieve 7 with preliminary cooling by intercooler 7, 7, the avoid their deformation and ovalization for a correct recycling D, 1, 1 and reuse of the microspheres 1, 2, 2.

The technology has been applied to a road lorry with three to five axes, with the aim to have a vehicle allowed to free circulation on the roads to reach the possible yards, airports and so on and to be able to work in moving yards without closing the lane or the section where it is necessary to remove the road markings and remake them immediately after.

An autonomous self-propelled unit (D-D) with suction, storage and housing of the magnetic group completes the regeneration and cleaning action removing from the surface coating any grit possibly dispersed and not recovered by the shot-peeni

An automatic filter cleaning system, e.g., for cleaning a filter in a vacuum cleaner. The cleaning system has an electrical motor that drives/rotates, directly/indirectly, a piston which directly/indirectly opens a filter cleaning valve. The filter cleaning valve may open for a filter cleaning back flow air stream that thus cleans the filter. The piston is spring loaded and a piston guide ensures that the energy accumulated in the spring and piston is released during the rotation of the piston, thereby shortly opening the filter cleaning valve.

An evacuation station for collecting debris from a cleaning robot includes a controller configured to execute instructions to perform one or more operations. The one or more operations includes initiating an evacuation operation such that an air mover draws air containing debris from the cleaning robot, through an intake of the evacuation station, and through a canister of the evacuation station and such that a receptacle received by the evacuation station receives at least a portion of the debris drawn from the cleaning robot. The one or more operations includes ceasing the evacuation operation in response to a pressure value being within a range. The pressure value is determined based at least in part on data indicative of an air pressure, and the range is set based at least in part on a number of evacuation operations initiated before the evacuation operation.

A filter system. The filter system comprises a baghouse head assembly, a baghouse lower assembly and a baghouse inside shell assembly. The baghouse head assembly and the baghouse lower assembly are configured to selectively close and open between an open configuration and a closed configuration. The baghouse inside shell assembly comprises an upper surface and a one or more bag filters. The filter system comprises a lower cavity and an upper cavity. The lower cavity comprises a space between a side portion of the baghouse lower assembly and a shell of the baghouse inside shell assembly. The upper cavity comprises a space between the upper surface of the baghouse inside shell assembly and a lid portion or the baghouse head assembly. The one or more bag filters are configured to filter air flow between the lower cavity and the upper cavity.

A centrifugal mesh mist eliminator generally comprises a cylindrical roll of mesh attached to a vertical rotating shaft positioned within the center of a pressure vessel. A horizontal partition within the pressure vessel forms a barrier seal between the upper and lower portions thereby directing droplet laden gas flow through the rotating mesh. The incoming droplet laden gas stream enters the lower portion of the pressure vessel through an inlet nozzle. The droplet laden gas stream flows through the rotating cylindrical mesh element where it enters the top section of the pressure vessel. Droplets impinge on the mesh and coalesce into larger diameter drops. These larger diameter drops detach from the mesh due to centrifugal force. The detached liquid droplets settle to the bottom of the vessel as their mass is sufficient to overcome the surrounding flow stream drag force. Liquid discharges from the bottom of the vessel through an outlet nozzle while dry gas exits through a top outlet nozzle.

Cleanable filters and methods of cleaning filters are described in the present application. The cleanable air filter includes a housing and a filter element installed in the housing. The filter element is configured to filter an operating fluid in a given application. The filter element is cleanable in-situ in the installed condition in the housing. The cleanable air filter further includes a cleaning fluid applicator configured to apply a cleaning fluid to the filter element while the filter element is in the installed condition in the housing such that the filter element is cleanable without being removed from the filter housing.

Apparatuses include a laser cutter positioned within an enclosure that is capable of cutting printed sheets; however, this cutting produces debris made up of airborne dust of the sheet material and marking material. An air duct is capable of drawing an air stream of air and the debris out of the enclosure. A dispenser is positioned within the air duct where the air duct connects to the enclosure. The dispenser is capable of dispensing a dry powder of calcium carbonate into the air stream. The dry powder attaches to the debris. The combination of the dry powder and the debris forms waste, and a filter device (that is connected to the air duct) filters the waste. The filter device is capable of separating the air from the waste, to collect the waste and release the air free of the waste to areas outside the filter device.

An evacuation station for collecting debris from a cleaning robot includes a controller configured to execute instructions to perform one or more operations. The one or more operations includes initiating an evacuation operation such that an air mover draws air containing debris from the cleaning robot, through an intake of the evacuation station, and through a canister of the evacuation station and such that a receptacle received by the evacuation station receives at least a portion of the debris drawn from the cleaning robot. The one or more operations includes ceasing the evacuation operation in response to a pressure value being within a range. The pressure value is determined based at least in part on data indicative of an air pressure, and the range is set based at least in part on a number of evacuation operations initiated before the evacuation operation.