10 results about "Particulate media" patented technology

This invention discloses a variable stiffness tactile detection sensor for marine weld joints based on luminous flux modulation, belonging to the field of industrial inspection and tactile sensing technology. It includes: an integrally molded silicone body, a circular circuit board, a top rigid support, and an optical modulation assembly. The silicone body has an integrally molded central optical cavity, with a clamping cavity area formed outside the central optical cavity. The central optical cavity is surrounded by side walls and a lower wall, with the side walls connected to the outer wall of the silicone body via connecting sections. The circular circuit board is mounted at the lower part of the central optical cavity and has a light-emitting unit and multiple photosensitive units disposed thereon. The optical modulation assembly includes at least two polymer-dispersed liquid crystal films, which are arranged in the optical path area between the light-emitting unit and some of the photosensitive units to modulate the luminous flux distribution within the central optical cavity. The clamping cavity area is filled with particulate medium to form a particulate clamping variable stiffness structure. The top rigid support is mounted on the upper part of the central optical cavity and has a negative pressure connection interface communicating with the clamping cavity area. This enables the detection of multi-dimensional tactile features of the weld joints.

System for measuring the moisture content of a granular medium. This description relates to a system (1) for measuring the moisture content of a granular medium (2) comprising a collection element (3) intended to be placed in the granular medium (2) in contact with the granular medium (2), and configured to collect water present in the granular medium (2), a reservoir (14) for receiving the collected water, moisture sensors (16) in regions at least partially distinct from the granular medium (2), at least one temperature sensor (24), at least one conductivity sensor (26) configured to measure the conductivity of the water received in the reservoir (14), and transport means (18, 21) configured to transport water from the reservoir (14) to the conductivity sensor (26). Figure for the abstract: Fig. 1

A chemical product production method according to the present disclosure involves: introducing an inert gas into a reactor accommodating a granular medium that contains a fluid material A and an additive B having a pore volume of 0.01 cm3 / g to 10 cm3 / g, inclusive, to cause the granular medium to flow; heating the reactor; and supplying a starting material that contains a plastic to the heated reactor.

This invention provides a tip-extending biomimetic tunneling soft robot for particulate media, comprising a tip-extending portion, a drive portion, and an extension length measurement unit. The internal soft cavity of the tip-extending portion is housed within a transparent external cavity in a flip-out manner. The drive portion is connected to the air intake chamber of the external base portion via a flexible hose, supplying high-pressure gas to the air intake chamber to drive the closed end of the internal soft cavity to flip and extend outward from one end of the transparent external cavity. The extension length measurement unit includes a flexible traction member and a rotating roller. One end of the flexible traction member is connected to the tip of the internal soft cavity, and the other end of the flexible traction member is wound around the rotating roller. When the tip of the internal soft cavity flips and extends outward, it drives the flexible traction member to move together. The tunneling depth is determined by measuring the length pulled out of the flexible traction member from the rotating roller. This invention's soft robot is capable of tip-extending tunneling and can accurately measure the extension length.

The present application relates generally to methods and systems for delivering amendments like sulfate to a subsurface below a ground surface. In one embodiment a process comprises advancing a borehole from the ground surface to the subsurface below the ground surface wherein the borehole is advanced above a water table. The borehole is at least partially filled with a mixture comprising gypsum and a granular media. The borehole is then irrigated with water to at least partially dissolve the gypsum and to spread the dissolved gypsum to a desired treatment zone below the ground surface. The irrigating may comprise employing a gravity fed trickle flow using an irrigation line while the desired treatment zone may comprise one or more hydrocarbons.

This invention proposes a straightening process and apparatus for large-sized, thick-walled, heat-resistant, thick-walled magnesium alloy cylindrical parts, comprising the following steps: placing the thick-walled magnesium alloy cylindrical part into a straightening mold and fixing it; then filling the inner cavity of the magnesium alloy cylindrical part with solid particulate media, graphite or BN, and compacting it using a press; transferring it to a mold and then to a heating fixture for heating and heat preservation; after reaching a preset temperature and time, turning on an ultrasonic generator, then applying pressure and maintaining it; after maintaining the pressure for a certain time, turning off the ultrasonic generator and releasing the pressure; transferring the straightening mold to a platform, cooling it, removing the solid particulate media, and taking out the cylindrical part. The solid particulate media precision straightening method for thick-walled magnesium alloy cylindrical parts provided by this invention solves the technical problem of straightening large-sized, thick-walled magnesium alloy cylindrical parts by using solid particulate media as the force transmission medium, and achieves precision straightening of thick-walled magnesium alloy cylindrical parts.

This utility model discloses a discharge valve with protective and guiding functions to prevent crystallization and erosion, relating to the field of valve technology. The discharge valve includes a valve seat, a valve body, a valve stem, a guide anti-erosion sleeve, and a guide base. This discharge valve, by adding a guide anti-erosion sleeve and a guide base inside a traditional discharge valve, guides the valve stem, improving the stability of valve lifting and lowering, reducing valve stem swaying and deviation during movement, and lowering the risk of valve seal failure due to unstable valve stem movement. Simultaneously, it reduces the contact area between the valve stem and the medium, preventing medium particles from adhering to the valve stem surface and preventing particulate medium from being carried into the stuffing box, improving the reliability of the valve seal, reducing packing wear and leakage problems caused by medium particles entering the stuffing box, and extending the service life of the packing.

An abrasive blasting device includes a canister which defines a chamber therein. An abrasive particulate media and a pressurized gas are contained in the chamber of the canister and are unseparated from each other. The dispensing mechanism is mounted in the top wall of the canister and is configured to selectively release the abrasive particulate media via a pressure differential between the chamber and an exterior atmosphere outside of the canister.

This invention relates to a multi-media controlled oil dehydration device, comprising a shell with a feed inlet, a water outlet, and an oil outlet. The dehydration device includes a feed distributor, a particulate media assembly, and a fiber media assembly, sequentially installed in the lower, middle, and upper parts of the shell. The feed distributor is connected to the feed inlet pipeline. The lower part of the particulate media assembly has a support, and the upper part has an intercepting net. The lower part of the fiber media assembly has a support, and the intercepting net is installed below the support. The particulate media assembly communicates with the fiber media assembly through the intercepting net. This invention, by combining the particulate media assembly and the fiber media assembly, effectively removes water and impurities carried in the oil, optimizes the oil-water separation process, improves the dehydration effect, and achieves an emulsion water separation efficiency greater than 80%.