8results about How to "Improve diversion capacity" patented technology

The utility model relates to the technical field of corn seed screening, and discloses a screening device for corn seeds, which comprises a fixed bottom plate and a screening box, one side of the top of the screening box is communicated and provided with a feed port, and a hollow area is formed on a partition plate and positioned on the right side of a baffle plate. The partition plate is fixedly installed at the upper position in the screening box, the top of the partition plate is divided into two areas, one area is the solid area, the other area is the hollow area, after an air bellow is assembled, the air feeder on the side edge is started to work to supply air, airflow is guided into the screening box through the circulating pipe after being filtered through the filter plate, and therefore the screening effect is achieved. Therefore, when feeding is conducted at the position of the feeding port, air flow blows corn seeds to shift rightwards to reach the position above the hollow area, particles such as stones with the gravity larger than that of the corn seeds are located above the solid area, and the materials flow out of the hollow area and are screened through the screening plate under guiding of the material guiding plate. In this way, the overall screening capacity is well improved in the working process.

The present disclosure relates to a kind of water deep penetration guide seam fracturing reservoir engineering design methods, comprising: using water deep penetration perforation method, drill open horizontal long hole in the top of thick oil layer, the horizontal long hole is drilled in low water content direction on plane, and drainage channel is formed in the part where water drive oil capacity is weak;The penetration length of the water deep penetration perforation is determined according to the development thickness of oil layer, injection-production connection relationship, injection-production distance, the number of perforation is in the same direction on the top of each subdivision layer blocked by interlayer, and it is 0.2-0.4m away from upper barrier or interlayer;After the water deep penetration perforation, hydraulic fracturing is carried out to form artificial fracture, let the drilled horizontal long hole guide the longitudinal position and horizontal trend of artificial fracture, to improve the flow conductivity again, realize the purpose of "targeting" tapping of remaining oil enrichment site in the cubic of injection-production well positive rhythm oil layer.

The application discloses in-situ growth coated catalytic proppant and a preparation method and application thereof, and the preparation method of the proppant comprises the following steps: dispersing a proppant matrix in a salt solution containing one or more transition metal precursors to form a solid-liquid suspension system; adding a precipitator to the suspension system to induce in-situ heterogeneous nucleation and growth of the metal precursors on the surface of the proppant matrix, thereby forming a precursor-coated proppant with a core-shell structure; and performing high-temperature calcination on the precursor-coated proppant to obtain the in-situ growth coated catalytic proppant. The application utilizes in-situ growth and high-temperature reactivity sintering technology to construct a firm high-entropy ceramic catalytic film on the surface of the proppant, thereby solving the problems that a traditional impregnated proppant coating is easy to fall off and has poor temperature resistance; meanwhile, the high-entropy effect and lattice oxygen vacancies are utilized to achieve a technical breakthrough that the proppant can efficiently catalyze thick oil viscosity reduction without an organic modifier.

This disclosure provides a mechanically indexable insert and a turning tool. The mechanically indexable insert is polyhedral, having a first end face, a second end face, and multiple side faces located between the opposing first and second end faces. The first end face has a groove along its edge, the groove having a first groove surface. Along the edge of the first end face, the first groove surface gradually approaches the second end face from the corner of the polyhedron. The first groove surface is adjacent to two side faces and forms a first intersection line and a second intersection line with each side face, respectively. The rake face of the mechanically indexable insert is located on the first groove surface, the primary cutting edge of the mechanically indexable insert is located on the first intersection line, and the secondary cutting edge of the mechanically indexable insert is located on the second intersection line. The turning tool includes a tool holder and a mechanically indexable insert mounted on one end of the tool holder. The mechanically indexable insert and turning tool provided by this disclosure can improve the machining quality of tantalum-niobium workpieces.

The utility model relates to the technical field of side thruster fairing and discloses a fairing structure of bulk carrier bow side thruster, including the fairing body, the mounting block of fixed mounting in the lateral wall of fairing body and set up in the fairing body side position's fairing subassembly, the fairing subassembly includes the fairing mechanism of setting up in the inner wall position of fairing body, the side position of fairing body is provided with auxiliary mechanism, the fairing mechanism includes stable frame, stable frame fixed mounting is in the inner wall of fairing body, the inner wall of stable frame is rotatably installed with the fairing board through the bearing, the inner wall sliding installation of the top of fairing board is provided with the adjusting rod of chute. The utility model solves the problem that the existing fairing mostly adopts simple cylindrical or conical design, has big water flow resistance, and the fairing effect is not good, leads to the low side thruster propulsion efficiency, thereby influences the steering stability of ship.

The utility model discloses an energy -saving central air conditioning machine room group control equipment heat dissipation flow guide structure, including the machine room, one side of machine room is equipped with first heat dissipation fan, and the top of machine room is equipped with linkage heat dissipation mechanism and telescopic adjusting mechanism respectively, and the side of machine room is equipped with second heat dissipation fan away from first heat dissipation fan, and the top and bottom of inside machine room are equipped with installation bin, and the inside of machine room is equipped with group control equipment and exhaust passage respectively, the utility model discloses the inside of machine room is suspended to set up group control equipment, so as to cooperate with the structure of linkage heat dissipation mechanism, it is convenient to utilize synchronous rotation's fan structure, promotes two groups of relative position setting's fan blade to group control equipment and carries out the blowing heat dissipation, and the introduction of cooperation second heat dissipation fan heat dissipation airflow and the introduction of first heat dissipation fan heat dissipation airflow, thereby makes group control equipment reach more comprehensive heat dissipation effect, and the ventilation efficiency is better.

This application relates to a water tank for an extruder, belonging to the technical field of water tanks. It includes a tank body and a guide plate. The guide plate is disposed within the tank body, with its opposite sides abutting against the opposite side walls of the tank body. An inlet and an outlet are respectively opened at opposite ends of the tank body. A transmission rod is fixedly connected to each opposite side of the guide plate. The end of the transmission rod away from the guide plate passes through the side wall of the tank body and is rotatably connected to the tank body. A first gear is fixedly connected to the end of the transmission rod outside the tank body. A support plate is fixedly connected to each opposite side of the tank body. A rack is slidably connected to the upper surface of the support plate along the length direction of the tank body. The length direction of the rack is parallel to the length direction of the tank body, and the rack meshes with the first gear. A moving component for moving the rack is provided at the tank body, and a fixing component for fixing the rack is provided at the tank body. This application improves the convenience of adjusting the angle of the guide plate.

The present application relates to the technical field of fracturing aids, and is a temperature-controlled self-polymerization sand consolidation proppant and a preparation method thereof.The raw materials of the temperature-controlled self-polymerization sand consolidation proppant include a proppant, a surface modifier, a temperature-sensitive material, an initiator and an organic solvent.The surface modifier is composed of a silane coupling agent and an accelerator, and the temperature-sensitive material is composed of temperature-sensitive material A and temperature-sensitive material B.The temperature-controlled self-polymerization sand consolidation proppant has good compression resistance, flow conductivity and anti-flowback capability.The proppant is modified, and the modified proppant is grafted with the temperature-sensitive material, so that the temperature-controlled self-polymerization sand consolidation proppant changes in molecular conformation at the reservoir temperature after entering the fracture, and the surfaces of the temperature-controlled self-polymerization sand consolidation proppant are bonded together through chemical bonding and physical entanglement in a dual mode, thereby consolidating the sand while maintaining high flow conductivity.