11results about How to "Comprehensive area" patented technology

The invention relates to the technical field of high polymer materials, and particularly discloses a high-strength polypropylene composite material for a filter plate and a preparation method of the high-strength polypropylene composite material. The preparation method of the polypropylene composite material comprises the following steps: uniformly mixing polypropylene, polyimide, maleic anhydride grafted polypropylene, nylon 6, a maleic anhydride grafted styrene-butadiene-styrene copolymer, aminated calcium carbonate, modified glass fiber, an antioxidant and a lubricant according to a mass ratio of 100: (12-18): (2-5): (1-2): (3-5): (3-7): (6-10): (0.2-0.5): (0.1-0.3), carrying out melt blending, extruding, cooling, granulating, and carrying out extrusion molding to obtain the polypropylene composite material. Through the synergistic effect of the nano calcium carbonate and the glass fibers, the mechanical property of polypropylene is improved, all the raw materials are crosslinked to form a uniform network structure, more energy is absorbed when a matrix is impacted by external force, and it is guaranteed that the filter pressing plate is not damaged when deforming under the high-temperature and high-pressure conditions; the obtained polypropylene composite material is high in strength, good in heat resistance and excellent in comprehensive performance.

The invention provides a preparation method of a carbon-doped carbon nitride material, which is characterized by comprising the following specific steps: (1) prepolymerization: mixing melamine and 2, 4, 6-triaminopyrimidine powder according to a certain proportion, heating to 400-450 DEG C in a protective gas atmosphere, and calcining to form prepolymer carbon-doped melem; (2) supramolecular modification: taking 0.5 g of carbon-doped melem obtained in the step (1), adding the carbon-doped melem into 25 mL of a hydrochloric acid aqueous solution with a certain concentration, carrying out ultrasonic oscillation dispersion, placing the mixture in a fuming cupboard to naturally evaporate water and excessive hydrochloric acid, and further drying and grinding the mixture to obtain a hydrogen-halogen bond connected carbon-doped heptazine supramolecular precursor; and (3) preparing carbon nitride through high-temperature calcination: calcining the hydrogen-halogen bond connected carbon-doped heptazine supermolecule precursor obtained in the step (2) at 500-600 DEG C for 2-6 hours, cooling, crushing and grinding to obtain the carbon-doped carbon nitride photocatalytic material.According to the method provided by the invention, a prepolymer is prepared firstly, has relatively high thermal stability and a heptazine skeleton structure which is the same as g-C3N4, and is used for preparing the carbon nitride photocatalytic material. The preparation method comprises the following steps: firstly, carrying out supermolecule modification through hydrochloric acid, and finally, carrying out high-temperature calcination, so that rich pore structures can be obtained, the absorption capacity of the material to sunlight and the adsorption capacity of the material to reactant molecules can be improved, the framework structure integrity of the material can also be improved, an unblocked transmission channel is provided for photon-generated carriers, and the photocatalytic efficiency is improved.

The present application relates to the technical field of sodium battery materials, in particular to a sodium supplement coating based on a spiral iron-carbon composite material and a preparation method thereof, a spiral polypyrrole template is synthesized by a chiral template method, Fe3C@CNS spiral carbon composite material rich in Fe3C nanocrystals and iron single-atom sites is prepared through iron loading, sulfidation and high-temperature pyrolysis, Na2C2O4@Fe3C@CNS composite material is prepared by highly dispersing sodium oxalate on the surface and in the pores of the spiral carbon composite material through a recrystallization method, finally, a slurry is prepared by mixing the Na2C2O4@Fe3C@CNS composite material with a conductive agent and a binder, and the slurry is coated on the surface of an electrode to form a functional sodium supplement coating. The sodium supplement coating based on the spiral iron-carbon composite material and the preparation method thereof solve the problems of poor interface stability and first-cycle irreversible sodium loss of existing sodium ion batteries, realize efficient sodium pre-activation and interface synergistic regulation, and improve the comprehensive performance of the battery.

The utility model discloses an agricultural irrigation device, which relates to the field of agricultural irrigation, and comprises a supporting rod body, mounting side blocks are symmetrically welded on two sides of the supporting rod body, mounting holes are formed in the top surfaces of the mounting side blocks, a side fixing box is fixedly arranged on one side of the supporting rod body, and the side fixing box is fixedly connected with the supporting rod body. A top horizontal groove is horizontally formed in the top face of the supporting rod body, top vertical rods are vertically and upwards in butt joint with the top face of the supporting rod body, a connecting rod body is horizontally arranged on the side edge between the top vertical rods, a supporting pipeline is horizontally arranged on the bottom face of the connecting rod body, and spraying heads are evenly and fixedly connected to the bottom face of the supporting pipeline. An inner air cylinder is fixedly arranged on the inner side edge of the top vertical rod in the vertical direction, a bottom connecting block is welded to the bottom end of the top vertical rod, and conveying rollers are symmetrically connected to the inner side edge of the supporting rod body in a clamped mode. Meanwhile, due to a crossing type spraying irrigation structure, the area is larger and more comprehensive during irrigation.

The invention relates to the technical field of crop planting, in particular to a method for cultivating quinoa sprouting vegetables in summer. According to the specific technical scheme, the method for cultivating chenopodium quinoa sprouting vegetables in summer comprises the steps that during June to August, soil preparation, base fertilizer application, ditching and planting substrate laying are conducted; the chenopodium quinoa seeds subjected to coating treatment are sown, leaf fertilizer is sprayed in the four-leaf period, and root topdressing is conducted; in the whole cultivation period, the soil humidity is kept at 70-80%; the planting substrate absorbs water until the humidity is kept at 60-80%, then is mixed with base fertilizer, and is laid in the ditches. According to the method, the problems that damping-off of the chenopodium quinoa willd sprouting vegetables occurs on a large scale during summer planting, leaves become small, the taste of the chenopodium quinoa willd sprouting vegetables is poor and the like in the prior art are solved.

The invention relates to the technical field of lithium manganese iron phosphate materials, in particular to modified lithium manganese iron phosphate, a preparation method thereof, a positive electrode material, a battery and application. The modified lithium manganese iron phosphate is prepared from the following raw materials: lithium manganese iron phosphate, C7H7ZnCl and silane; the mass ratio of the lithium manganese iron phosphate to the C7H7ZnCl to the silane is 1: (0.01 to 0.06): (0.01 to 0.08). According to the modified lithium manganese iron phosphate provided by the invention, the raw material contains the silane, and the silicon dioxide obtained by sintering the silane is used as a supporting structure of the LFMP, so that the thermal stability of the LFMP is improved.

The invention discloses a high specific surface area nano FAU molecular sieve synthesis method, which comprises: 1) dissolving a silicon source, an aluminum source and an alkali source in water, and uniformly mixing in a premixing device to obtain a mixed solution A; standing and aging to obtain a guiding agent; 2) dissolving an alkali source and an aluminum source in water by taking a silicon source as a single material to obtain a mixed solution B; in premixing equipment, premixing a silicon source and the mixed solution B with the guiding agent prepared in the step 1) to form reaction initial gel; and 3) transferring the initial reaction gel in the premixing equipment into a crystallization kettle for hydrothermal crystallization reaction, taking out a product after the reaction is finished, filtering, washing and drying to obtain the FAU molecular sieve. The particle size of the nanosheet-shaped FAU molecular sieve is 20-450 nm, the specific surface area is 960-1100 m < 2 > / g, and the pore volume of mesopores is 0.1-0.8 cm < 3 > / g; more active sites can be provided, the diffusion path is shorter, and the molecular diffusivity can be improved.

The application discloses a treatment method of fly ash solidified by oil-based rock debris desorption residues and a fly ash solidified body, and comprises the following steps: uniformly stirring fly ash and oil-based rock debris desorption residues to obtain a mixture in an adsorption state; adding a heavy metal chelating agent and a soluble salt complexing and cementing agent into the mixture in sequence to obtain a stabilized mixture; and adding cement, stones and water into the stabilized mixture in sequence, uniformly stirring and solidifying to obtain the fly ash solidified body. The application reduces the solidification cost, strengthens the stable solidification treatment of pollutants, improves the compressive strength after solidification, and reduces the lead leaching amount and the total amount of soluble salts.

The invention provides olive oil with repairing, soothing and anti-wrinkle functions and a preparation method and application thereof, and belongs to the technical field of cosmetics, the preparation method comprises the following steps: mashing and sieving olive fruits to obtain olive pulp; performing rotary evaporation on the olive pulp, then adding water, mixing, and centrifuging to obtain supernate and olive pomace; separating the supernate to obtain crude olive oil I; mixing olive pomace with water, and performing ultrasonic treatment, enzymolysis and sterilization to obtain pomace pretreatment liquid; inoculating zymophyte into the pomace pretreatment liquid for fermentation, and sterilizing to obtain pomace fermentation liquid; centrifuging the pomace fermentation liquor to obtain supernate; separating the supernate to obtain crude olive oil II; mixing the olive crude oil I and the olive crude oil II, then adding a modified adsorbent, heating, stirring and filtering to obtain olive crude oil; and performing vacuum deodorization on the olive crude oil to obtain the olive oil. The olive oil prepared by the invention has stable performance, is suitable for cosmetics, and has good repairing, soothing and anti-wrinkle effects and the like.

The utility model discloses a multidirectional adjustable irrigation equipment relates to green pomelo planting field, including fixed base plate and fixed base plate bottom end one side fixed connection drive motor, the middle position of fixed base plate top end is rotatingly connected with fixed rod, and the inside of fixed rod is slidingly connected with the movable block, fixed base plate bottom end one side is fixed base plate bottom end one side, fixed base plate bottom end one side is fixed base plate bottom end one side is fixed base plate bottom end one side is fixed base plate bottom end one side. The top end of the movable block is fixedly connected with a movable rod, and the top end of the movable rod is fixedly connected with a connecting rod. According to the irrigation equipment capable of being adjusted in multiple directions, a spray irrigation pipe is placed in a limiting ring to be limited and clamped in position, so that a fixing rod can drive the spray irrigation pipe to change in angle when rotating, multi-angle spray irrigation is achieved, and the spray irrigation area can be more comprehensive; the sliding block drives the movable rod to slide up and down in the fixed rod, the height of the spray irrigation pipe is changed, due to the change of the height of the spray irrigation pipe, water flow of the same size can spray different positions, and therefore the spray irrigation range is enlarged.

The invention relates to the technical field of tunnel operation, and discloses an in-tunnel multi-machine collaborative operation method, which comprises the following steps of: selecting the number of auxiliary machines and the types of the auxiliary machines according to operation requirements, and then determining the position of each auxiliary machine through a main machine; the host scans a required operation area in the tunnel and establishes a three-dimensional model of the tunnel; the main engine plans a path for the auxiliary engine and presets an operation speed and an operation starting point; the auxiliary machine moves to an operation starting point and operates according to a planned path and a preset operation speed, so that the situation that the machine easily collides with obstacles inside the tunnel and around the tunnel wall to cause damage to the detection machine and obstacle equipment is avoided; the main engine plans an auxiliary engine path and an operation speed in real time; through the path planning of each auxiliary machine by the main machine and the real-time communication between the main machine and each auxiliary machine, the detection is more comprehensive, and the detection omission is avoided, so that the technical effects that the auxiliary machine detection type and area are more comprehensive, and the auxiliary machine and the obstacle equipment are not easy to collide are achieved.