276 results about "Granular matter" patented technology

Hydraulic fracture dimensions and, optionally, fracture closure pressure and time are determined by adding particulate matter that discharges to create an acoustic signal to the proppant, allowing the particulate matter to discharge, and detecting the acoustic signal with geophones or accelerometers. The particulate matter may be spheres or fibers. The discharge may be explosion, implosion, detonation, or rapid combustion or ignition. The discharge may be triggered by fracture closure or by chemical reaction.

A roofing shingle includes strata that are stacked and laminated together by adhesive. Each of the strata may have a strata width that differs from the other strata. Each of the strata may include a substrate, a top asphalt layer on top of the substrate, granular matter on the top asphalt layer, a bottom asphalt layer on a bottom of the substrate, and mineral matter on the bottom asphalt layer.

The invention relates to a novel solid-state cigarette core of an electronic cigarette and a preparation method for the novel solid-state cigarette core, belongs to the technical field of electronic cigarettes, and particularly relates to a solid-state cigarette core of the electronic cigarette and a preparation method thereof. The solid-state cigarette core of the electronic cigarette is prepared by heating an aroma carrier material and has a filtering effect. Through a design of a hollow cigarette core, a contact area between the cigarette core and a heating rod is increased, and a heating area and the heating efficiency of an atomizer are increased; a fibrous material is taken as a carrier to fully adsorb the aroma carrier material, and by indirectly heating the thermosensitive solid aroma carrier material, smoke which can be inhaled by a consumer is formed, and the consumer is endowed with the natural tobacco feel. Meanwhile, through reasonable combination of the paper hollow cigarette core and a filter element, the aroma carrier function and the filtration function of the material are perfectly combined, the smoke which has certain resistance to suction and which can be inhaled by the consumer is formed, the contents of tar and harmful granular matters in the smoke of the electronic cigarette are reduced, the smoking feel similar to the conventional cigarettes is endowed, and the electronic cigarette smoking pleasure is greatly improved.

The device, destined to be anchored in the ground of granular composition, comprises a rod with a hollow tubular section, the latter having an open upper end wherein can be fixed an object and an intermediate orifice on its flank. The orifice enables evacuation of the granular matter constituting the ground and penetrating into the rod through its open lower end when the device is being anchored in the ground.

A filter element includes a cylindrical housing enclosing a ring-shaped filter media assembly. The media assembly includes inner and outer media rings, moveably supported relative to one another, to remove particulate matter and water from a fluid stream. The outer ring surrounds the inner ring and is sealed by a first seal to the housing. An end cap assembly at the upper end of the element includes an annular end cap piece attached to an upper end of the inner ring, a flat plate, and a threaded flange portion bounding the periphery of the plate. A second seal is provided between the upper end cap of the inner ring, and an upper end cap of the outer ring. The housing is secured to the media assembly by forming an open end of the housing around the flange portion.

A guidance electronics unit is provided for an explosively-launched vehicle, e.g., a projectile or missile, comprising a plurality of circuit card assemblies, each circuit card assembly containing a plurality of electronic components and interconnections, each circuit card assembly maintained in a housing and spaced apart. All spaces surrounding each circuit card assembly are filled with a granular material to provide support for each circuit card assembly during explosive launch. Further, a method for supporting circuit card assemblies in the guidance electronics unit is provided. The problem of enabling guidance electronics to survive the large loads encountered during an explosive launch out of a gun, such as a howitzer, or missile launch tube is thereby solved.

A filter element includes a cylindrical housing enclosing a ring-shaped filter media assembly. The media assembly includes inner and outer media rings, moveably supported relative to one another, to remove particulate matter and water from a fluid stream. The outer ring surrounds the inner ring and is sealed by a first seal to the housing. An end cap assembly at the upper end of the element includes an annular end cap piece attached to an upper end of the inner ring, a flat plate, and a threaded flange portion bounding the periphery of the plate. A second seal is provided between the upper end cap of the inner ring, and an upper end cap of the outer ring. The housing is secured to the media assembly by forming an open end of the housing around the flange portion.

In a method of separating unwanted fine matter from heavier granular matter a flow of the material is produced under vacuum firstly through alternating expansion and contraction passages and then against impact surfaces to cause multiple redirections of the material and separation of the heavier granular material from the material flow.

Methods and apparatuses are described for removing a contaminant, such as a vaporous trace metal contaminant like mercury, from a gas stream. In one embodiment, a primary particulate collection device that removes particulate matter is used. In this embodiment, a sorbent filter is placed within the housing of the primary particulate collection device, such as an electrostatic precipitator or a baghouse, to adsorb the contaminant of interest. In another embodiment, a sorbent filter is placed within a scrubber, such as a wet scrubber, to adsorb the contaminant of interest. In some embodiments, the invention provides methods and apparatuses that can advantageously be retrofit into existing particulate collection equipment. In some embodiments, the invention provides methods and apparatuses that in addition to removal of a contaminant additionally remove particulate matter from a gas stream.

The invention discloses a method for recovering mixed waste gas in synthetic leather production, which comprises the following steps of: filtering granular matters or fibrous matters from the mixed waste gas, and cooling the mixed waste gas; absorbing the cooled mixed waste gas by circulating spraying and packing contact by using dimethyl formamide as an absorbing solvent; refrigerating the dimethyl formamide absorbing liquid which absorbs the mixed waste gas; absorbing the waste gas which is absorbed by a packing layer in a contact way by circulating water spraying and contact with water again in the packing absorbing layer; and discharging the tail gas which is absorbed by water packing and reaches the standard. The invention also discloses a recovering device for realizing the method for recovering mixed waste gas, which comprises a tower body, wherein a dimethyl formamide spraying chamber, a dimethyl formamide packing chamber, a water spraying chamber and a water packing chamber are arranged in the tower body. The invention has sufficient gas-liquid contact and high waste gas recovering rate, and not only achieves the purpose of recycling toluene, butanone and DMF but also avoids the environment pollution.

A method and apparatus for monitoring particulate matter in a gas sample and the air quality associated therewith is provided.