39results about How to "Improve physical and chemical performance indicators" patented technology

The invention discloses a method for producing biomass fuel by catalytic cracking from scraps of animal and vegetable oil. The method comprises the following steps that: the animal and vegetable oil or the scraps thereof are subjected to decontamination and dehydration to make an impurity content less than 3 percent and a moisture content less than 3 percent; 2. under the condition of normal temperature, a mass ratio between a raw material and a catalyst in a reaction kettle is between 100 to 2 and 10, the reaction kettle is slowly heated to a temperature of between 300 and 500 DEG C to carry out a catalytic cracking reaction; and a product obtained after the reaction is distilled under normal pressure, a biological gasoline fraction is distilled at a temperature of between 40 and 190 DEG C, and a biological diesel fraction is distilled at a temperature of between 190 and 290 DEG C; and 4. the catalyst is amorphous aluminum silicate, gamma-Al2O3 or a molecular sieve. Compared with the prior method for producing biodiesel by an esterification method or an interchange esterification method, the method for producing the biomass fuel of the invention does not use concentrated sulfuric acid or inorganic base which have strong corrosiveness, has small pollution to the environment and small corrosion to equipment, and reduces cost in sewage treatment; and the raw material has wide application range, comprising animal and vegetable fat, hogwash oil, waste oil, chafing dish oil, bottom oil of plant oil, soapstock, acidified oil and so on, has no restriction on the acid value of the raw material.

The invention belongs to the technical field of carbon materials and particularly relates to a preparation method of an anti-lighting and resistance-reducing grounding module material. The anti-lighting and resistance-reducing grounding module material comprises calcined petroleum coke, special graphite powder, an ion slow-release agent and medium-temperature asphalt. The preparation method includes: mixing and kneading, forming, calcining and machining, wherein the mixing and kneading includes dry mixing and wet mixing, the special graphite powder, the calcined petroleum coke and the ion slow-release agent are added into a mixing and kneading pot for mixing and kneading during the dry mixing, dry mixing time is 60-70 minutes, dry mixing temperature is 135-145 DEG C, and the material obtained after the dry mixing is a dry material; the medium-temperature coal asphalt is added into the calcined petroleum coke after the dry mixing in twice to perform mixing and kneading during the wet mixing, wet mixing temperature is 145-155 DEG C, the weight of the medium-temperature coal asphalt added in the first time is 75-85% of the total weight of the medium-temperature coal asphalt, the time of the first wet mixing is 20-25 minutes, the weight of the medium-temperature coal asphalt added in the second time is 15-25% of the total weight of the medium-temperature coal asphalt, and the time of the second wet mixing is 25-30 minutes; a paste material is obtained after the mixing and kneading.

The invention provides a method for producing biodiesel by using solid acid to catalyze waste animal and vegetable oils and fasts, leftovers of the animal and vegetable oils and fats are taken as raw materials, a sodium bisulfate or zirconium sulfate catalyst and methanol or ethanol are added, and stirring reaction is performed under the conditions that the pressure is 0.2MPa and the temperature is 110-125 DEG C so as to reduce the acid value of a reaction product to below 2mg KOH/g; the residual methanol or the ethanol is recovered, 0.2% of sodium methoxide is further added, and the stirringreaction is performed for 30 minutes at the temperature of 60-65 DEG C; and performing decompression distillation on the reaction product so as to get the biodiesel. The sources of the raw materials are abundant, and the price is low. Compared with the traditional esterification method or the ester exchange method for producing the biodiesel, the process uses the solid acid to replace concentrated sulfuric acid for being used as the catalyst; furthermore, the using quantity of organic base is small, the environmental pollution is small, the equipment corrosivity is small, and the sewage treatment cost is reduced. By adopting the method, not only resources are saved, but also the environmental pollution problem caused by the leftovers generated during refining of vegetable oil at present is eliminated, and waste is further changed to a valuable matter.

This invention discloses an additive for producing biosiesel oil from animal and plant oils. The additive is prepared from: dimethyl carbonate 35-45 wt.%, KOH 10-15 wt.%, catalyst 0.75-1.25 wt.%, saponification inhibitor 8.25-13.75 wt.%, chain-breaking agent 6-10 wt.%, and ethylene glycol monomethyl ether 30-40 wt.%. The obtained biodiesel oil comprises animal and plant oils, diesel oil and additive at a weight ratio of (30-60) :( 38-65) :( 2-5).

The invention provides an anti-entangling and anti-damage rubber covered roller formula for spinning production and a rubber compound preparation process thereof. The rubber covered roller comprises an aluminum tube roller core and a rubber composite material layer for coating the aluminum tube roller core. The rubber composite material layer is prepared from the following raw materials in parts by weight: 40-60 parts of carboxyl hydrogenated nitrile rubber, 40-60 parts of nitrile rubber, 5 parts of zinc oxide, 10 parts of titanium dioxide, 1.5 parts of an antiageing agent, 3-4 parts of an accelerant, 1-3 parts of an antistatic agent, 8-14 parts of an antistatic plasticizer, 1-3 parts of a functional auxiliary agent, 6-12 parts of white carbon black and 1-3 parts of a vulcanizer. The anti-entangling and anti-damage rubber covered roller formula can improve the oil resistance of the spinning rubber covered roller, prevent permeation of an oiling agent and prevent migration of a dye frompolluting the surface of the rubber covered roller. In the preparation process, a rubber plasticizing process in a conventional preparation process is canceled. A novel process of directly putting rubber (blocky rubber) into an internal mixer to be mixed to form a rubber compound is adopted, so that the process flow is shortened, the operating strength is reduced and the production efficiency isimproved.

An embodiment of the invention provides a pure-carbon draw runner for a subway and a preparation method of the pure-carbon draw runner. The method comprises the following steps: pouring aggregates, powder and an adhesive in a mixing and kneading machine and carrying out mixing and mixing treatment to obtain mixed and kneaded paste; placing the mixed and kneaded paste in a sheet mill and rolling, and after air-drying sheets, preparing the sheets into particles with the sizes of 2 mm by using a Raymond mill; feeding the particles into a preheating cylinder of a screw extruder by a pipe and carrying out preheating treatment at the highest temperature of 180 DEG C, and then carrying out screw extrusion to obtain a blank product, wherein the volume density of the blank product is greater than or equal to 1.77 g/cm<3>; and primarily roasting the blank product under the condition that the blank product is isolated from air to obtain the pure-carbon draw runner for the subway. A pantograph carbon draw runner material produced by the preparation method of the pure-carbon draw runner for the subway provided in the second aspect is a novel carbon product, and has quite good physico-chemical performance indexes, due to addition of silicon carbide, the conductivity, heat conduction property, friction property and wear resistance of the pantograph carbon draw runner material are improved remarkably, and the overall performance of the pure-carbon draw runner is improved.

The invention discloses a preparation method of an LFP material. The preparation method comprises the following steps of (1) feeding the raw materials for preparing the LFP material into a smelter, then heating the raw materials into a molten state and enabling the molten raw materials to flow out; (2) quenching the out-flow molten materials in water and then drying the quenched materials; (3) performing superfine processing and then carbon coating on the dried materials. The preparation method of the LFP electrode materials can achieve continuous production of the LFP material and meanwhile is stable in quality and low in energy consumption. Compared with an existing liquid phase method capable of achieving mass production, the preparation method of the LFP electrode material is equivalent in physical and chemical performance index but simpler in production process, free from restriction of water solubility, lower in energy consumption and production cost and applicable to a mass production non-heavy waste water treatment process; compared with a solid phase method, the preparation method of the LFP material is complete in reaction degree, high in production efficiency and obvious in enhancement of physical and chemical performance indexes. By contrast, the solid phase method lags in technology and falls into disuse. Technological processes and equipment utilized in the preparation method of the LFP material are mature and well-used, thereby facilitating control and adjustment of production processes and product quality.

The invention discloses a four-module assembled water cellar, which comprises a settling pond and a water cellar, wherein the settling pond is provided with a water inlet pipe, a pipe is communicated between the settling pond and the water cellar, and the upper part of the water cellar is provided with a water outlet pipe; and the settling pond and the water cellar are assembled by modules. An integrally formed water cellar is divided into a plurality of standard modules so as to achieve the perfect combination of minimum mould number and minimum mould cost to complete the production of the whole device, and the size of the water cellar can be expanded in multiple specifications on the basis of the standard modules.

The invention provides a universal internal rotation machine device for engineering wheels. The universal internal rotation machine device for engineering wheels comprises a frame, a sliding block, a spinning roller mechanism, a pressing mechanism and a rotating platform are arranged in the frame, and the upper end of the sliding block is connected with an axial feeding mechanism. The lower end of the sliding block is connected with the spinning roller mechanism, and a spinning roller is arranged at the bottom of the spinning roller mechanism. A mold is fixed on the rotating platform, and the rotating platform is connected with a transmission mechanism through a main shaft. The pressing mechanism is connected with a pressing cylinder, and a workpiece is fixed in the mold through the pressing mechanism. The spinning roller mechanism is further connected with a radial feeding mechanism, and the axial feeding mechanism and the radial feeding mechanism are matched with an automatic control numerical control system to achieve feeding machining according to a product curve. The invention further provides a method for machining wheels through the universal internal rotation machine device for engineering wheels. The method specifically comprises the steps of mold fixing, feeding, spinning roller internal spinning, returning and workpiece taking and the like, unequal-thickness extension machining on engineering wheels can be completed, and the universal internal rotation machine device can be widely applied to the field of machining of rims of engineering wheels.

The invention provides a micro-electrolysis water generator, which is matched with a water dispenser or is used independently, and can generate drinking water which is beneficial to human bodies, such as alkaline electrolysis water. In the micro-electrolysis water generator, the water dispenser is convenient to clean, and the secondary pollution of the water dispenser is prevented. The micro-electrolysis water generator comprises a smart seat component, a water inlet component, a water outlet component, a filter element component and a floater component, wherein the water inlet cavity is formed on the middle part of the smart seat component; the water inlet component is fixed on the middle part at the bottom end of the smart seat component and is positioned in the water inlet cavity, and the water inlet component is provided with a water inlet; the filter element component is positioned below the smart seat component; the outlet of the water inlet component is communicated with the water outlet component; the water outlet of the water outlet component is communicated with the filter element component; the filter element component comprises a middle part through hole; a filter element is positioned on the periphery of the middle part through hole; the water outlet component is positioned in the middle part through hole of the filter element component; and the top of the floatercomponent is fixed in an inner cavity of the water outlet component, and the floater component comprises a floater positioned below the filter element component.

The invention refers to a kind of composite board and the product made up by melting a kind of composite board into close mixed material, which is made up of modified rosin mixed material and modified asphalt mixed material, thermal plasticity plastic and softening and solidifying mixed material of impacting modifier, the mixed material expresses the character of improved melted thick mixed material. The invention has excellent mechanism intensity and performance in respects of tensile-strength/tensile module, flexing strength/flexing module and shock strength. The invention uses mode of forming and form of extended pressure forming, and forming mode and plastic pouring form method and blowing method to produce composite board and the product, thus the product has diversity and practicability. It uses the secondary energy in energy field. It supports the environment protection in waste processing field.

The invention relates to a novel application of a high polymer material in the field of fermented foods and particularly relates to a novel application of a PTFE (Polytetrafluoroethylene) film to brewing of a sweet red yeast rice wine. The sweet red yeast rice wine is contained in a fixed-shaped open vessel; an opening part of the vessel is sealed by using a sealing element which is at least ventilated at a local part and can isolate microorganisms in the environment; the sealing element is composed of a bonding part bonded with the wall of the vessel and a functional part with ventilation and isolation functions; and the PTFE film is used for processing the functional part of the sealing element. According to the novel application, the PTFE film is used as a packaging film to be applied to the brewing of the sweet red yeast rice wine, so that the guarantee period of the sweet red yeast rice wine can be greatly prolonged and can be up to 8 months to the maximum extent, the PTFE film plays a role in controlling the fermentation speed of the sweet red yeast rice wine, the sweet red yeast rice wine has no flatulence and rancidity phenomena, and the physical and chemical performance indexes of the sweet red yeast rice wine are good.

The invention relates to a halogen-free flame-retardant dynamic vulcanized ternary ethylene-propylene rubber/ polypropylene thermoplastic elastomer, which comprises EPT rubber, polypropylene (PP), cross linking agent, non-halogen flame-proof architecture, plasticizing agent and auxiliary agent, wherein the non-halogen flame-proof architecture employs magnesium hydroxide / red phosphorus system, and the halogen-free flame-retardant ternary ethylene-propylene rubber/ polypropylene thermoplastic elastomer is obtained through extrusion machine dynamic vulcanization extrusion granulating. The thermoplastic elastomer can be widely applied into the fields of automobile, architecture and cables where halogen-free flame resistance is needed.

The invention discloses a dyed melamine glue impregnated surface layer paper decoration artificial plate production process, which comprises: adhering natural wood skin on the surface of an artificialplate by using common melamine glue impregnated surface layer paper, the natural wood skin and a super-flat steel template through a heat-conducting heating pressing technology; carrying out primarycoarse sanding and primary fine sanding on the artificial plate adhered with the natural wood skin, and cleaning; and adhering dyed surface layer paper to the surface of the wood skin by using dyed melamine glue impregnated surface layer paper and a ultra-flat or wood thorn convex surface steel template through a heat-conducting heating pressing technology. According to the invention, the productcan replace the existing natural wood skin decoration plate material, the cost and the construction difficulty are reduced, and the production operation effect, the industrial production, and the physical quality standard of the product are improved.

The invention relates to the technical field of agriculture, in particular to a preparation method of a microbial soil conditioner. The microbial soil conditioner comprises the following raw materials: agricultural organic wastes, an inorganic fertilizer, chitosan, rice husk powder, traditional Chinese medicine residues and gleditsia sinensis. The microbial soil conditioner is prepared by the abandoned organic agricultural wastes, so that the wastes can be changed into valuables, the utilization rate of resources is increased, and the defect that a traditional soil conditioner uses bentonite is overcome, therefore, the soil conditioner is higher in decomposition speed.