23 results about "Dense material" patented technology

A broadband omni-directional bicone antenna. The antenna can comprise conductive surfaces of conical voids provided within a solid dielectric structure. The outside surface of the solid structure can support a radio frequency (RF) lens geometry operable for beam forming. The beam forming can modify the elevation pattern of the electromagnetic radiation from the bicone antenna. The solid dielectric structure may be machined or molded from a single piece of material. The conical voids provided within the solid structure can be metallized to provide conductive bicone radiators. The outer surface beam shaping lenses can be zoned or continuous and can provide elevation patterns with increased gain, cosecant squared falloff, or various other patterns. The beam shaping lens may be formed from any low-loss dielectric. Alternatively, the lens may be formed from a less dense material such as dielectric foam that can support radial conductive beam forming vanes.

Sintering methods comprising (a) providing a layer of powder material on a platform; (b) projecting incident light from a source onto a surface area of the layer of powder material, wherein the incident light is projected for a sufficient time to densify the layer of powder material and form a layer of densified material; (c) optionally cooling the layer of densified material to a sufficient temperature to solidify or vitrify the layer of densified material to form a layer of sintered material; and (d) repeating steps (a) to (c) to form a sintered article in a layer-wise fashion are disclosed. The incident light may cause complete melting of the powder material or heat the powder material above its glass transition temperature. In general, the incident light is projected simultaneously and for a time span substantially the same as formation of the layer of densified material.

The invention discloses a straw carbonization device based on waste heat recycling, and relates to the technical field of straw carbonization devices, the straw carbonization device comprises a separation assembly, the separation assembly comprises a sealed cabin, and springs are arranged at the positions, close to four corners, of the inner top surface of the sealed cabin. According to the straw carbonization device based on waste heat recovery and utilization, when straw is divided into blocks with uniform sizes and enters the oscillation bin, the blocky straw in the oscillation bin is punched through a plurality of flow dividing pipes, so that the blocky straw is dispersed into smaller blocks, in addition, when gas punches the oscillation bin, four springs drive the oscillation bin to oscillate back and forth, so that the straw carbonization effect is improved. In the vibration process, crushed straw falls into a conveying hopper along round holes in an inclined separation plate and finally enters a conveying pipe, the crushed straw is crushed into uniform blocks in the environment with the low oxygen content, on the premise that air is isolated, the sealed conveying advantage of extrusion forming is reserved, and the conveying efficiency is improved. And the heat conduction bottleneck of the compact material blank is avoided through low-oxygen crushing.

The application discloses a preparation method of high-quality vanadium-titanium pellets from sea sand ore. The method comprises the following steps: uniformly mixing sea sand ore and high-pressure roller grinding circulating edge material of the sea sand ore, pre-pressing and high-pressure roller grinding the obtained mixed material, returning the edge material obtained by the high-pressure roller grinding to participate in the mixing of the mixed material, uniformly mixing the medium material obtained by the high-pressure roller grinding and a binder, and then sequentially performing balling, low-temperature preheating and roasting to obtain the pellets. The method can promote the uniform action and transmission of the roller surface pressure among the particles by forming a uniform and dense material layer structure in the sea sand ore during the laminated crushing process, and is beneficial to the efficient activation of the sea sand ore during the high-pressure roller grinding process, can improve the green ball quality of the sea sand ore, strengthens the oxidation and consolidation of the pellets, can realize the low-temperature, low-cost and efficient preparation of the vanadium-titanium pellets from the sea sand ore, and is beneficial to the industrial production.

An acoustic wave device includes a piezoelectric layer and an interdigital transducer electrode disposed over the piezoelectric layer. The interdigital transducer electrode is thicker in a center region of the interdigital transducer electrode than in a gap region of the interdigital transducer electrode to thereby reduce a mass loading of the interdigital transducer electrode in the gap region. The interdigital transducer electrode has a layer of more dense material disposed of a layer of less dense material.

The invention discloses a method and device for preparing modified plastic from waste plastics, and relates to the field of waste plastic recycling devices.The device comprises a crusher and a cleaning pool, conveyors are arranged on the two sides of the crusher correspondingly, two crushing rollers are arranged in the crusher, and an upper pressing roller and a lower pressing roller are rotationally arranged in the crusher in a penetrating mode; a convex ring is fixedly arranged on the upper pressing roller, a concave ring groove is formed in the lower pressing roller, a rolling assembly is arranged in the crusher, an auxiliary plate is arranged at the moving end of the rolling assembly, a connecting rod is arranged in the auxiliary plate in a sliding mode, at least three spines are fixedly arranged on the connecting rod, an auxiliary assembly is arranged on the two crushing rollers, and a gathering plate is arranged at the moving end of the auxiliary assembly. Through meshing of the convex rings and the concave ring grooves on the upper pressing roller and the lower pressing roller which are mounted in the crusher, plastics with different hardness are forcibly pressed into a compact material belt, and the sharp spines pierce plastic bottles, pre-connect the materials and push the materials in a self-adaptive manner, so that continuous and controllable feeding is ensured.

The invention provides a selective swelling opening method of a crystalline block copolymer, which comprises the following steps: carrying out random copolymerization on a crystalline polymer and a random copolymerization unit through polycondensation, free radical polymerization, anionic polymerization or cationic polymerization to obtain a random copolymer with the crystallinity of 5-50%, preparing a segmented copolymer with the crystallinity of 5-50% from the random copolymer and other polymers with different properties; or melting the crystalline block copolymer and then quenching, so that the crystallinity of the crystalline block copolymer is reduced to 5-50%; preparing a compact material by taking the obtained crystalline block copolymer as a raw material; the obtained compact material is perforated through selective swelling under the action of a selective solvent. The method is simple and convenient, easy to operate and low in cost, the performance of the porous membrane is very convenient to regulate and control, the surface of the membrane has corresponding characteristics under the condition that a complex membrane surface modification process is not involved, and the method has good amplified preparation and practical application prospects.

Sintering methods comprising (a) providing a layer of powder material on a platform; (b) projecting incident light from a source onto a surface area of the layer of powder material, wherein the incident light is projected for a sufficient time to densify the layer of powder material and form a layer of densified material; (c) optionally cooling the layer of densified material to a sufficient temperature to solidify or vitrify the layer of densified material to form a layer of sintered material; and (d) repeating steps (a) to (c) to form a sintered article in a layer-wise fashion are disclosed. The incident light may cause complete melting of the powder material or heat the powder material above its glass transition temperature. In general, the incident light is projected simultaneously and for a time span substantially the same as formation of the layer of densified material.

The invention discloses a material sealing type feeding and discharging device and a working method. The material sealing type feeding and discharging device comprises a material sealing screw and a material rotating screw, and a discharging opening of the material sealing screw is connected with a feeding opening of the material rotating screw; a spiral piece is arranged in the material sealing screw, the spiral piece forms a reverse rotation structure at a discharging port of the material sealing screw, and the reverse rotation structure extrudes materials from the discharging port of the material sealing screw and forms a section of material seal. A shaftless spiral piece is arranged in the material rotating screw, and the shaftless spiral piece is used for scattering materials; strong mechanical extrusion is generated on light materials at the discharging opening of the spiral piece of the material sealing spiral, gas in gaps of the materials is discharged, a high-density material sealing layer is formed, series connection of gas phases at the front end and the rear end is thoroughly blocked, the shaftless spiral piece of the material rotating spiral is designed without a central shaft, the materials are prevented from being wound and clamped, meanwhile, dense material flow is quickly scattered, and the material sealing effect is improved. The pressure of a material sealing layer is reduced and motor overload is prevented.

This utility model discloses a carrier silo anti-arching vibration discharge device, relating to the technical field of discharge equipment. The utility model includes a storage silo with a discharge pipe connected to its bottom; a vibration discharge assembly is installed at the bottom of the storage silo, comprising a vibrating plate disposed inside the discharge pipe and a movable frame fixedly connected to one side of the vibrating plate. This utility model achieves dynamic arch breaking and active disturbance through the combined motion of the servo motor-driven arch-breaking frame rotation and the vibrating plate. The arch-breaking frame periodically cuts the material flow at a preset speed, disrupting the mechanical balance of the arch bridge; the vibrating plate generates high-frequency vibration through an eccentric wheel, reducing the cohesive force of the material. The synergistic effect of these two mechanisms effectively inhibits arch formation and improves discharge continuity. A dual-gear transmission system matches different vibration frequencies; the large gear drive side provides low-frequency strong vibration to break up dense material layers, while the small gear side uses high-frequency vibration to refine material particles, creating a gradient crushing effect.

The utility model provides a material centralized processing assembly line for polycrystalline silicon, and aims to solve the technical problem that coral materials cannot be processed after all compact materials are processed in the prior art. The assembly line comprises a carbon head material processing line; the compact material treatment line is sequentially provided with a water quenching area, a pre-crushing area, a primary selection area, a secondary crushing area, a sorting area and a packaging area; the coral material processing line comprises a temporary storage area, and a discharging area of the temporary storage area is arranged on the secondary crushing area of the compact material processing line. The compact material treatment line comprises a long compact material treatment system and a short compact material treatment system; the long compact material treatment system is composed of a water quenching area, a pre-crushing area, a primary selection area, a secondary crushing area, a sorting area and a packaging area; the structure of the short compact material treatment system is the same as that of the coral material treatment line, and the short compact material treatment system and the coral material treatment line are connected to the secondary crushing area. According to the treatment assembly line, the temporary storage area is arranged for the coral materials, so that the coral materials can be treated after being treated.

The application discloses a metal smelting waste residue recycling treatment equipment, and relates to the field of comprehensive utilization of smelting waste residues of steel enterprises. The outer side upper end of a bearing base is provided with a docking hydraulic component, the output end lower end of the docking hydraulic component is provided with a rolling docking piece, the rolling docking piece and the inner side position of the bearing base correspond to each other, the inner side of the bearing base is provided with a lateral movable piece, the outer side of the lateral movable piece is provided with a first spring, and the first spring and the inner side of the bearing base correspond to each other. The metal smelting waste residue recycling treatment equipment is provided with a pneumatic stripping structure, the internal materials of the bearing base are prevented from being adhered and guided by the pneumatic stripping structure, the dense material layer formed on the surface of the lateral movable piece is directly acted on by the protruding action, the plate surface is restored to the original roughness and effective rolling pressure through local deformation and continuity, the biting capacity of the coarse particle waste residue is obviously improved, and the materials are prevented from being excessively compacted.

The present disclosure relates to an artificial bait having certain physical characteristics that allow for it to remain forward-facing in the water to be quickly detected location- and direction-wise using sonar techniques. The characteristics of the bait also allow for it to engage in erratic darting action and remain in the water during retrieval for an extended period of time. Typically, the bait can include a body having a head portion, a tail portion, and a middle portion therebetween. A first attachment structure configured to receive a line can be located on or near the head portion. A hook structure can be inserted behind the first attachment structure, for example, on or near the middle portion of the body. The head portion can further include a portion of dense material therein.

The present invention relates to a mill (1) for densifying a material, for example a shredded and / or crushed metallic material obtained from scrap. The mill (1) comprises : a loading member (2), a densifying chamber (3), a grille (4), a vibrating table (5), and a feeding chamber (6). The loading member (2) is suitable for receiving the material to feed the mill. The densifying chamber (3) comprises a rotor (30) provided with a plurality of hammers (31) configured to beat the material and increase its density until it becomes a densified material. The grille (4) is adapted to be passed through by the densified material. The vibrating table (5) is adapted to receive the densified material that has passed through the grille (4) and is configured to convey said densified material towards the outside of the mill (1). The feeding chamber (6) connects the loading member (2) to the densifying chamber (3) and comprises a pushing member (60) configured to push the material into the densifying chamber (3).

The methods and systems presented herein are designed for processing waste to extract plastic. A system and method for separating and recovering plastic from a mixed waste feedstock is disclosed. The process involves initial size reduction, moisture removal, and sequential up-and-down density separation at different specific gravities to separate low density plastics such as polypropylene (PP) and polyethylene (PE) from denser materials such as acrylonitrile-butadiene-styrene (ABS) and polystyrene (PS). The system is suitable for various waste streams and feedstock compositions.

The invention discloses a curing agent for curing a road foundation and a preparation method of the curing agent. The curing agent comprises the following components in percentage by mass: 60-65% of a hydrated active material, 20-25% of a flexible strength material, 10-15% of a compact material, 3-5% of an early strength material and 0.5-1% of an excitation material, wherein the hydrated active material is formed by compounding three or more of solid waste cement, steel slag, alkaline residues, power plant slag, waste coal ash below grade III and ardealite. The curing agent replaces cement, lime and other traditional high-energy-consumption pollution curing agents, three or more common industrial solid wastes are compounded, the solid waste utilization rate is increased, the cement consumption is reduced, the curing agent is non-toxic and harmless, environment damage caused by natural road building material mining is avoided, and the curing agent conforms to the green development trend; through five functional modules including hydration activity, flexible strength, compactness, early strength and excitation, the compressive strength of the solidified soil is greatly improved compared with that of a traditional material, water stability and freezing stability are excellent, indexes such as compactness reach the standard, the problem of performance imbalance of a traditional curing agent is solved, and the service life of a road is prolonged.

The invention provides a silicon carbide device, a preparation method and new energy equipment, and can be widely applied to the technical field of new energy, the silicon carbide device comprises a silicon carbide body, and the surface of the silicon carbide body is provided with a plurality of tube core areas; each tube core area is provided with a plurality of vertex angles; the scribing channel is formed in the area outside the multiple tube core areas, and the area, making contact with the vertex angles of the tube core areas, of the scribing channel is in an arc shape; the scribe lane includes a first trench disposed around the die region to form a protective coating by depositing a dense material in the first trench. According to the invention, the contact part between the scribing channel and the vertex angle of the die region is arc-shaped, so that the stress concentration at the corner of the scribing channel can be reduced, the problem that cracks are easy to generate at the corner of the scribing channel in the related technology can be relieved, the manufacturing yield of the silicon carbide device can be improved, and the electrical performance parameters of silicon carbide can be improved.

The application discloses a dry grinding method of heavy calcium carbonate special for air permeable film, and relates to the technical field of pore-forming agents for air permeable film. The steps are as follows: raw material preparation; raw material cleaning; raw material crushing: the crushing system is connected with the online cleaning, and the raw material is crushed into sand and stone materials with gradation; vertical mill grinding: no water or grinding aid is added, the mill temperature is above 85 DEG C, then the material is fed, the returned material and the feeding material are fully mixed in the vertical mill, the final gradation of the total feeding material of the vertical mill is realized, the dense material layer is reached, the grinding pressure of the vertical mill, the linear speed of the classifier wheel of the classifier and the static pressure increment of the fan are controlled; and the modified material is conveyed. The application has the following advantages: a brand-new process is adopted, no grinding aid is added, the crushing into sand and stone materials with gradation, the feeding, the returned material, the grinding pressure, the linear speed of the classifier wheel of the classifier and the air pressure and air volume of the fan are controlled, a coordination effect is produced, the requirement of narrow particle size distribution is realized, the dry powder obtained by grinding has the characteristics of low moisture and high activity, the process flow is obviously simplified, and the cost is greatly reduced.

In a levitation conveying device using a porous material for the guide member, damage to the joint between the main body member and the guide member, and a decrease in the levitation conveying function are suppressed. [Solution] A levitation conveying device for levitating and conveying a web conveyed object W comprises a main body member 1 made of a dense material and a guide member 2 made of a porous material. The main body member 1 has a first threaded portion 11 on its outer surface and a fluid introduction portion 12 for introducing a fluid for levitation conveying inside. The guide member 2 has a second threaded portion 21 on its inner surface and a levitation conveying surface 22 on its outer surface for levitating the web conveyed object. The main body member 1 and the guide member 2 are joined by a threaded joint 4 formed by the first threaded portion 11 and the second threaded portion 21.

The present disclosure relates to the field of atomization applications. More specifically, the disclosure relates to an atomization core, comprising a core substrate and a heating body on the core substrate, wherein the core substrate is made of a dense material (e.g., dense ceramics), with e-liquid transferring perforations distributed in the substrate; the diameter of the e-liquid transferring perforations is 1-250 μm; the wall spacing between two adjacent e-liquid transferring perforations is less than 500 μm; and the porosity of the dense material is less than 30%.

The pet food bowl with integrated insect exclusion prevents crawling insects from reaching exposed pet food. The device includes two bowls. The first bowl, or lower bowl, acts as a water basin or moat. Any insect that tries to reach the upper bowl must cross the water held within the lower bowl. The water prevents the majority of insects from being able to pass, including, for example, ants. A weighted enclosure is removably positioned within the lower bowl or water basin. The weighted enclosure is optionally filled with a dense material, such as sand, rocks, or metal. This weight within the weighted enclosure helps to maintain the device in the correct position, even when a large animal, such as a dog, is pushing and pulling on the upper food bowl during eating.

The invention discloses a necking glass bottle water bath type sterilization cabinet, which relates to the technical field of sterilization equipment, and comprises a sterilization cabinet body, a goods shelf arranged outside the sterilization cabinet body, a segmented loading mechanism arranged on the outer wall of the goods shelf in a combined manner, and a reciprocating arrangement mechanism arranged in the segmented loading mechanism, through the arrangement of the segmented loading mechanism and the reciprocating arrangement mechanism, the problem that the sterilization efficiency is wasted due to the fact that a traditional goods shelf cannot ensure that necking glass bottles are rapidly heated and the heating time needs to be prolonged is solved. The necking glass bottles on each layer can efficiently receive hot water sprayed by the sterilization cabinet body, the short-term heat isolation phenomenon of the internal glass bottles caused by dense materials of a traditional goods shelf is avoided, the necking glass bottles on the bottom layer, the middle layer and the top layer can alternately become preferential contact points of hot water and steam, and the sterilization efficiency of the necking glass bottles is remarkably improved.

The utility model relates to the technical field of double-shaft shredding machines, in particular to a feeding device of an anti-blocking double-shaft shredding machine, which comprises an anti-blocking mechanism, the anti-blocking mechanism comprises a feeding plate, a labyrinth plate is arranged on the top side of the feeding plate, the top side of the feeding plate is in sliding contact with the bottom side of the labyrinth plate, a feeding box is arranged on one side of the feeding plate, and the feeding box is arranged on the other side of the feeding plate. According to the feeding device of the anti-blocking double-shaft shredder, materials are poured into the feeding box, and the guide plate is mounted in the feeding box, so that the materials can be accurately guided into the labyrinth plate under the action of the guide plate after entering, and after entering, the materials naturally roll under the action of gravity due to the fact that the feeding plate is inclined by a certain angle, so that the materials are prevented from entering the labyrinth plate. By means of the mode, the sliding speed of the materials is effectively reduced, the phenomena of material accumulation and material blocking caused by the too high flow speed of the materials are avoided, and particularly when small and dense materials are processed, the materials can be carefully carded through the corrugated path of the labyrinth plate.