12results about How to "Destabilization" patented technology

The present application relates to a kind of chitosan derivatives, its preparation method and application, belong to biological medical polymer material technical field.The method includes under the action of first catalyst, N-(2-hydroxypropyl)-3-trimethylammonium chloride chitosan is dissolved in first solvent, second solvent containing n-hexanoic anhydride is added to the first solvent containing N-(2-hydroxypropyl)-3-trimethylammonium chloride chitosan and is reacted, obtains chitosan derivative.The preparation method of the present application is easy to obtain raw material, and reaction condition is mild;And the chitosan derivative obtained carries a large number of positive charge, can be combined to the surface of negative electric tumor cell membrane by electrostatic interaction, promotes the interaction between the hydrophobic part of chitosan derivative and cell membrane phospholipid hydrophobic chain, destroys cell membrane stability and finally causes membrane lysis to make tumor cell necrosis.

The coke breeze cyclone separator comprises a first cylinder, a volute body, a first conical cylinder and an exhaust pipeline, gas containing coke breeze enters the volute body from a gas inlet, flows along the inner wall of the volute body and is guided to form a rotating vortex, and spirally flows downwards towards the conical cylinder along the first cylinder; the coke breeze is thrown to the inner wall of the first cylinder under the action of centrifugal force, the coke breeze loses inertia force and falls into the dust collecting hopper along the wall face, treated gas continuously flows into the center in the descending process in the conical cylinder to form centripetal radial airflow, the central airflow spirally ascends and enters the exhaust pipeline, and spiral blades are arranged on the inner wall of the exhaust pipeline in the exhaust direction. The spiral direction of the spiral blades is opposite to the spiral direction of gas, the spiral blades and spiral airflow generate shearing force, the stability of the airflow is destroyed, the airflow forms rising micro-turbulent flow between the blades, coke breeze collides with the inner wall of the exhaust pipeline and the blades, secondary separation in the exhaust pipeline is achieved, and the powder discharging efficiency of the coke breeze cyclone separator is improved.

The invention discloses a method for treating sewage generated by a cage rough washing process, and belongs to the technical field of industrial sewage treatment. Sewage generated in a cage rough washing process is subjected to first-time filter pressing after being treated by polyacrylamide and polyaluminum chloride, then a flocculating agent and water are mixed and put into a liquid medicine cylinder, the agent and the sewage in the liquid medicine cylinder are synchronously conveyed into a stirring cylinder for first-time stirring, then an oil removing agent is added, and second-time stirring is continued; and carrying out secondary filter pressing on the treated water, feeding the water into a precipitation cylinder, finally adding an oxidizing agent, and standing to obtain the treated water. According to the method, by adding polyacrylamide, polyaluminum chloride, a flocculating agent and a deoiling agent, metal ions, oily components and other impurities in sewage generated in the rough washing process are rapidly removed, the impurity content and the COD value in the sewage are reduced, the treated water can be applied to the rough washing process again, and the utilization rate of water resources is increased.

The invention discloses a flow guide structure for a baffling type disinfection tank and a design method thereof, the flow guide structure comprises baffles and flow guide plates arranged in the disinfection tank, the starting ends of the baffles are connected with the inner wall of the disinfection tank, flow channels exist between the open ends of the baffles and the inner wall of the disinfection tank, the multiple baffles are alternately arranged in the disinfection tank in parallel, and the flow guide plates are arranged in the disinfection tank. The guide plate is arranged at the open end of the baffle plate, and gaps exist between the guide plate and the open end of the baffle plate and between the guide plate and the inner wall of the disinfection tank, and the guide plate is used for guiding fluid flowing to the open end of the baffle plate. The inlet of each reaction chamber is divided into a left part and a right part through the guide plate, so that the influence of right-side high-speed fluid on left-side fluid flowing is weakened, meanwhile, the right-side high-speed fluid of each reaction chamber can be guided to flow through the guide plate, the flowing direction of the fluid is optimized, and the flowing speed of the left-side fluid of each reaction chamber is increased; therefore, the area of a backflow low-speed area is reduced, the strength of adherent flow is weakened, and the velocity distribution uniformity of fluid in the reaction chamber is optimized.

The present application provides a kind of plant pathogenic soil biological control agent and its preparation method and application technology, which is composed of multiple different genera of biocontrol strains and their metabolite concentrated solid 70-90% and auxiliary materials 10-30% with complementary mechanism and target.The fermentation concentrated liquid of multiple strains is mixed with carrier, and then spray dried to obtain the compound bacteria fermentation liquid concentrated solid;Then it is mixed with auxiliary materials to granulate to obtain the present application.The present application is used for the prevention and control of plant diseases caused by one or several of fusarium, pythium, pathogenic streptomyces, rhizoctonia solani, raoultella, erwinia carotovora and other plant pathogenic bacteria and nematodes that can survive in soil and its pathogenic soil.The present application effectively improves the microecological environment of pathogenic soil, induces plant disease resistance effect, constructs a good plant soil ecosystem and promotes plant growth and development.

This invention relates to the field of petroleum processing aids technology, and discloses a crude oil demulsifier and its preparation method. The crude oil demulsifier prepared by this invention differs from traditional demulsifiers that use linear polyethers as the main component. It is prepared by surface modification of hyperbranched polyether with Fe3O4@MOF-Cu nanomaterials, followed by mixing with water and methanol. This demulsifier not only achieves efficient demulsification during crude oil demulsification but can also be recycled, reducing demulsification costs.

The application relates to the technical field of data processing, in particular to a path flow estimation method, a computer system and a computer readable storage medium. A fusion strategy of K shortest path algorithm and A* search algorithm is introduced to screen and complete candidate paths, generate a candidate path set, and update particle weights based on three dimensions of travel time consistency, path consistency and detector measurability to guide the candidate path set to evolve in a more optimal and feasible direction. Dual prior information of tensor solution and particle reconstruction is introduced to construct a joint least square problem of path flow estimation, which can maintain a stable solution under the condition that neither turning flow nor path observation is complete. The application aims to solve the problem of how to realize accurate path flow estimation in a low mobile detector coverage scene.

The application provides a high-strength asphalt cold patching material and a preparation method thereof, belongs to the technical field of asphalt polymer materials, and the asphalt cold patching material comprises road petroleum asphalt, anionic emulsified asphalt, EAS-GMA, a core-shell structure composite modifier, epoxy soybean oil, basalt machine-made sand, limestone gravel, KH-550 and the like. The EAS-GMA is prepared by the reaction of polyamide resin, epoxy resin and stannous octoate, and then modified by KH-570. The core-shell structure composite modifier is prepared by the reaction of an isocyanate-terminated polyurethane prepolymer, epoxy resin and benzyl glycidyl ether, and then emulsified, and then MMA and KH-570 are added for adsorption, and then KPS is added for initiating reaction. The asphalt cold patching material is prepared by the synergy of multiple components and process optimization, breaks through the technical bottlenecks of long curing period, low initial strength, poor adhesion and insufficient durability of traditional cold patching materials, and realizes the unification of immediate compression and solidification and high strength and durability.

The invention discloses a dragging device for submarine cable laying, and relates to the technical field of submarine cable laying, the dragging device comprises a plurality of module bodies, the adjacent sides of two adjacent module bodies are connected with rotating parts, the rotating parts are used for limiting the rotation of the module bodies relative to the parallel axes of the edges of the adjacent module bodies, and the bending radius of a submarine cable is controlled by means of mutual limiting between the module bodies; fixing rings are arranged at the tops of the module bodies, traction steel wires in the fixing rings penetrate through the fixing rings to carry out lifting and traction operation on the single module bodies, two clamping rods are assembled and connected to the bottoms of the module bodies, and a driving assembly used for driving the two clamping rods to be opened and closed is arranged at the bottom of each module body; when the two clamping rods abut against each other, a clamping space can be defined to clamp the submarine cable, when the two clamping rods are separated, the submarine cable can fall under the action of self gravity, and the module body can be conveniently recycled while the bending radius of the submarine cable is controlled.

The utility model discloses a plasma generator cathode inner core with a bluff body turbulence cooling structure, and belongs to the technical field of plasma generators. The cathode inner core comprises a bluff body turbulent flow cathode head, an emitter and a cathode seat; the bluff body turbulent flow cathode head is an integrated special-shaped structural body, the bluff body turbulent flow cathode head and the cathode seat are connected together to form a deep cup-shaped structure with one end provided with a circular opening and the other end provided with a horn opening, and the length-diameter ratio of an inner hole of the cathode seat to an inner hole of the connecting end of the bluff body turbulent flow cathode head is 5-15 times; and the emitter is embedded in the center of an inner hole of the bluff body turbulence cathode head. The plasma generator is simple in structure, small in size, low in cost, convenient to replace and maintain, high in plasma temperature and reliable in operation, the working temperature of the cathode inner core can be further reduced, and the service life of the cathode inner core can stably reach more than 1200 hours.

The invention discloses a flocculating agent for machine cleaning wastewater of a pesticide missible oil preparation and application of the flocculating agent. The flocculating agent is prepared from the following components in parts by weight: 50-60 parts of an inorganic flocculating agent, 35-45 parts of an organic flocculating agent, 8-12 parts of a demulsification aid and 4-6 parts of a pH regulator. The flocculant disclosed by the invention is good in demulsification effect, high in COD removal rate, high in treatment efficiency, strong in floc stability, economical in cost and wide in wastewater adaptability, and solves the problems of poor demulsification effect, low COD removal rate, large flocculant dosage and the like when an existing flocculant is used for treating pesticide missible oil preparation cleaning wastewater.

The utility model provides a compounding device suitable for suspending agent pesticides, which relates to the field of compounding devices, and comprises a compounding tank body and a stirring motor, the output end of the stirring motor is provided with a stirring rod, the periphery of the stirring rod is provided with a stirring paddle, the periphery of the stirring rod is fixedly provided with a plurality of fixing rings, and the peripheries of the fixing rings are connected with blades through a plurality of movable parts. According to the utility model, centrifugal force generated by rotation is matched with the movable part to enable the vertical blades to be unfolded, agglomerated raw materials are crushed and scattered through the blades which are unfolded by rotation, solid raw materials and the agglomerated raw materials are better dissolved with liquid raw materials, and when the raw materials are crushed to a certain degree, the rotating speed can be reduced, so that the raw materials are uniformly mixed. Along with the reduction of the rotating speed, the blades are slowly and vertically downward, the electromagnetic coil in the magnetic attraction ring is electrified to generate magnetic force, and the blades are magnetically attracted to the magnetic attraction ring, so that the blades cannot be unfolded in the subsequent stirring process, the damage to the stability of the suspending agent pesticide due to excessive shearing is avoided, and the practicability of the device is improved.