643results about How to "The process is simple and reliable" patented technology

The invention discloses a photochemical advanced oxygenation-based simultaneous desulfuration and denitration system. The system is provided with a burning and exhausting system consisting of a burner, an electrostatic dust collector, a heat exchanger, a spray tower, a liquid adding tower and a chimney, wherein fume generated by the burner enters the electrostatic dust collector, fume particles are removed from the fume by the electrostatic dust collector, the fume enters the heat exchanger and is cooled by the heat exchanger, and then the fume enters the spray tower; an UV light tube is arranged in the spray tower; hydrogen peroxide solution from the liquid adding tower is pumped by a circulating pump, sprayed into the spray tower through an atomizing nozzle and is activated by ultraviolet light to decompose hydrogen peroxide and then generate hydroxyl radicals (.OH) with strong oxidizing property; after being contacted with the fume in the spray tower, the hydroxyl radicals undergoes a gas-liquid absorption reaction with the fume to oxidize and remove NOx and SO2 in the fume; the fume, after being absorbed and washed, enters the chimney from the top of the spray tower and is exhausted; and sulfuric acid solution and salpeter solution generated in the spray tower are pumped into the separating column by the circulating pump and are reacted with added ammonia water to generate agricultural fertilizers including ammonium sulfate and ammonium nitrate.

The invention relates to a comprehensive utilization synthesis process of natural gas employing methanation of coke oven gas, belonging to the technical field of new energy utilization. The process comprises the following steps: compressing coke oven gas, preliminary cleaning, removing sulfur, performing first section methanation, performing second section methanation and separating natural gas toprepare natural gas which reaches the grade A technological requirements of natural gas national standard (GB17820-1999). The synthesis process of natural gas employing methanation of coke oven gas reaches the aim of high effective comprehensive utilization of natural gas and provides a new way of preparing and synthesizing natural gas.

The invention discloses simultaneous removing device and method of various pollutants by an electrocatalytical oxidation combining lime-gypsum method. The device comprises a spraying and cooling device, an electrostatic enhancement reactor, a Venturi device, a double-circulation integrated absorption tower of various pollutants and a wet type electrostatic defroster, wherein after smoke is cooled by the spraying and cooling device, the smoke enters the electrostatic enhancement reactor and is subjected to corona discharge processing in a corona discharge area formed in the electrostatic enhancement reactor; the processed smoke enters the double-circulation integrated absorption tower of various pollutants and is sprayed to remove dust and absorb in the absorption tower; and the purified smoke sequentially enters a corrugated plate defroster and the electrostatic defroster on the upper part of a spraying tower so as to remove aerosol in the smoke. The invention has the advantages that various pollutants can be simultaneously removed, and meanwhile, the pollution of fine granules and the aerosol can be effectively controlled; various pollutants can have higher removal efficiency; and the removal and the absorption of by-products cannot cause secondary pollution to environment.

The invention relates to a preparation method of a carbon-coated sodium-micron-scale lithium titanate composite anode material. The method comprises steps as follows: lithium salt is dissolved in an aqueous solution of absolute ethyl alcohol, and the solution is marked a solution a; an organic titanium compound and a carbon source are dissolved in absolute ethyl alcohol, and the solution is marked a solution b; a chelating agent M is dissolved in absolute ethyl alcohol, ultrasonic dispersion is performed, and the solution is marked a solution c; the solution c is slowly dropwise added to the solution b while stirring, and white sol is obtained; then the solution a is slowly dropwise added to the white sol; after the sol is aged, heating, stirring, drying, grinding, sieving and calcination are performed, and the carbon-coated lithium titanate composite anode material is obtained. Lithium titanate has narrower particle size distribution and more uniform particle distribution, and sodium-micron-scale particles are uniformly inlaid to form particles with high tap density; the particle structure is loose and porous, the specific surface area of a formed electrode is larger, getting off of lithium ions in the lithium titanate material is facilitated, and the stability of the crystal structure of the lithium ions in the charge and discharge process is guaranteed.

The light amplifier includes InP substrate, n type InP buffer layer, passive waveguide layer, active region, ridge type waveguide and electrodes in top and bottom layers. Characters are that second stage wide ridge waveguide is setup between passive waveguide layer and active region. The said ridge type waveguide is lateral taper structure. Ridge type waveguide and second stage wide ridge waveguide together makes light beam match to optical fiber at far field. Ridge type waveguide is divided into three parts: reduced laterally in two stages. Features are: good performance in far field, very high coupling efficiency to waveguide or fiber and alignment tolerance, wide applicable to optical network, optical integration and photoelectron integration.

The invention relates to plastic which can be marked by laser, which comprises the following blended components in weight portion: 100 portions of plastic, 0.1 to 10 portions of powder rubber with the average grain diameter of between 50 and 200 nanometers and the gel content of over 60 weight percent, and 0.01 to 5 portions of pearlescent pigment or metallic oxide. The invention also relates to a method for preparing the plastic which can be marked by the laser. The preparation method comprises the steps of melting and blending the components comprising the plastic, the powder rubber and the pearlescent pigment to prepare the plastic which can be marked by the laser. The plastic which can be marked by the laser can obtain a laser mark with higher contrast grade under the action of the laser. The preparation method has the advantages of simple and reliable processes.

The invention provides tinned carbon nanomaterial reinforced compound solder alloy and solder paste thereof. The tinned carbon nanomaterial reinforced compound solder alloy comprises, by weight, 84-95 parts of tin-based solder, 0.01-0.2 part of carbon nanomaterials and 5-15 parts of soldering flux. By the adoption of the technical scheme, the creep resistance, electrical conductivity and thermal aging resistance of soldered dots generated by the tinned carbon nanomaterial reinforced compound solder alloy and the solder paste thereof are improved. The carbon nanomaterials in the prepared solder paste are uniform in distribution, the process is simple and reliable, adaptability is high, and cost is low.

The invention relates to the field of pencil lead manufacturing, in particular to a full automatic pencil lead filling machine. The full automatic pencil lead filling machine comprises a pencil lead barrel charging and locating device, a conveying device, a pencil lead charging and locating device, a pencil lead barrel cover charging device, a press-fitting device and a finished product conveyingbelt; the pencil lead barrel charging and locating device, the conveying device and the finished product conveying belt are arranged in the conveying direction of the conveying device; the pencil leadcharging and locating device is perpendicular to the conveying device; the pencil lead barrel cover charging device is located on the side of the pencil lead charging and locating device; the conveying device comprises a first rack and a conveying mechanism; a mounting groove is formed in the top of the first rack; the conveying mechanism is fixed in the mounting groove; the press-fitting deviceis fixed in the mounting groove and is located between the conveying mechanism and the finished product conveying belt; a first supporting block and a second supporting block are arranged on the firstrack symmetrically; and a first slideway is arranged on one side, facing the second supporting block, of the first supporting block. Automatic filling of pencil leads is realized, the production efficiency is improved and the technology is simple and reliable.

The invention discloses a method for recycling water-containing sump oil by utilizing a delayed coking device. The method comprises the following steps: (1) injecting water-containing sump oil into a steam blowing exhausting pipeline of a coke chamber when the coke chamber of the delayed coking device is subjected to large steam blowing and coke cooling process, wherein the water-containing sump oil is heated by high-temperature oil gas from the coke chamber; (2) gasifying water and light oil fractions in the water-containing sump oil, mixing the gasified water and light oil fractions with cooled oil, oil gas and steam from the coke chamber, and allowing the mixed oil gas to enter an emptying tower; and (3) distilling off the steam and light oil fractions from the top of the emptying tower, condensing, cooling, allowing the steam and light oil fractions to enter a liquid separation tank on the top of the emptying tower, and separating non-condensable gas, light sump oil and sulfur-containing sewage from the liquid separation tank, wherein heavy oil fractions are extracted from the bottom of the emptying tower. According to the method disclosed by the invention, the water-containing sump oil which is difficultly treated in an oil refinery is treated, the cooling load and energy consumption of the coking device are reduced, and the method is not influenced by the properties of the water-containing sump oil. The energy conservation and emission reduction in a refinery plant are promoted, and a certain economic benefits are created for the refinery plant.

The invention relates to a flotation method for lead and zinc ore difficult to select. The method includes the following steps of lead roughing, two-time lead scavenging, three-time lead fine selection, zinc roughing, two-time zinc scavenging and three-time fine selection. Lime serves as regulators, zinc sulfate and sodium sulfite serve as zinc inhibitor, diethyl dithiocarbamate and ethyl xanthogenate serve as lead collecting agents, copper sulfate serves as zinc activating agents, ammonium dibutyl dithiophosphate serves as zinc collecting agents, and terpenic oil serves as foaming agents. The lead and zinc ore difficult to select is processed by the adoption of lead differential flotation and zinc selection technological processes, and the practical problems that in original technological processes, zinc contains a high content of lead which contains a high content of the zinc, and the lead recovery rate and the zinc recover rate are low are solved. The technological processes are simple, reliable, easy to operate, and good in sorting index. Compared with the original technological processes, the method has the advantages that under the circumstance that raw ore contains the same lead and zinc, mutual containing of the lead and zinc is reduced, and the lead recovery rate and the zinc recovery rate are greatly increased and increased by 9.29% and 9.05% respectively.

The invention discloses a seeding pretreatment method for rape seeds. The seeding pretreatment method comprises the following steps: (1) finely selecting harvested rape seeds, and then drying the seeds in sunlight for 16-30 hours, wherein the seed drying has the effects of promoting the after-ripening and activity of enzyme, reducing the content of substances for inhibiting the seeds from sprouting, increasing the sprouting rate and sterilizing and the like; (2) soaking the seeds in the step (1), stirring the seeds uniformly by a seed soaking agent with the weight of 0.4-0.8 times of the dry weight of the seeds, and airing for 3-6 hours; (3) magnetizing the seeds from the step (2) in magnetized water, immersing the upper surfaces of the seeds by magnetized water so as to enclose the seeds in the magnetized water, and magnetizing in a magnetic field of 200-600 gauss for 2-6 hours; and (4) sowing the seeds treated in the step (3) within 2-3 days. According to the seeding pretreatment method, the activity of the enzyme at the seed germination stage by utilizing the interaction of magnetization and biological tissues; the metabolism of the substances and energy is accelerated; the method is simple, reliable, rapid and effective.

The present invention relates to a wood pulp nonwoven fabric for manufacturing filter tip of cigarette. Said invention uses wood pulp fiber and high-melting point synthetic fiber or/and artificial fiber as raw material and adopts air laying mode to make them into fiber web, then utilizes adhesive to make crosslinking reaction so as to obtain the invented nonwoven fabric for manufacturing filter tip of cigarette.

The invention discloses an anti-static/conductive fabric and a manufacture method thereof. The anti-static/conductive fabric is a terylene pure yarn fabric or a polyester-cotton blend fabric the fiber surface layer of which is uniformly compounded with conductive high molecular particles. The manufacture method comprises the following steps of: (1) destaticization: putting the terylene pure yarn fabric or the polyester-cotton blend fabric into a conductive high molecular particle dispersing solution to carry out wet dip dyeing treatment; (2) reduction cleaning: putting the fabric subjected to destaticization into a mixed solution of sodium hydrosulfite and alkali for cleaning; (3) rinsing: rinsing the fabric subjected to reduction cleaning by using water; and (4) drying and sizing: drying and sizing the rinsed fabric to obtain the anti-static/conductive fabric. The anti-static/conductive fabric effectively reduces the frication voltage and the resistance on the surface of the fabric and has good air permeability, enduring anti-static property and better uniformity. The manufacture method has simple process, easy operation, high quality of produced products and low cost.

The invention relates to a semi-hydrated-two-hydrated method wet process phosphoric acid production process and a system thereof, which solve the problems of high investment, small device scale, high energy consumption, low device operation rate and low raw material yield of the existing processing process. The technical solution comprises: performing semi-hydrated reaction and filtering by taking phosphorite as a raw material to obtain a product phosphoric acid and semi-hydrated gypsum, and then performing two-hydrated reaction and filtering on the semi-hydrated gypsum to obtain water-hydrated dry gypsum. The system comprises a semi-hydrated reaction and filtering system and a two-hydrated reaction and filtering system. The process is reliable, product phosphoric acid concentration is high, quality of side products fluosilicic acid and dry gypsum is good, energy consumption is low, equipment investment and operation cost are low, and environment friendliness and continuous stable large-scale production (more than or equal to 0.3 million tons/year) are realized.

The invention relates to a valve, and discloses a pneumatically controlled angle seat valve. An aluminum alloy upper end cover is connected with an aluminum alloy cylinder barrel through a sealing ring; an observation window is fixed in the center of the aluminum alloy upper end cover; one end of an indicating rod is positioned in the observation window, and the other end of the indicating rod is connected with a locking nut; the locking nut is connected with a valve rod; the valve rod is fixed in the center of a piston; one end of a spring presses against the aluminum alloy upper end cover, and the other end of the spring presses against the piston; an air inlet is positioned on the lower part of the aluminum alloy cylinder barrel; the valve rod is connected with an aluminum alloy lower end cover through an oil bearing; a Y-shaped ring is arranged between the valve rod and the aluminum alloy lower end cover; the aluminum alloy lower end cover is connected with a connecting seat; the connecting seat is connected with a valve body; a macromolecular sealing assembly and a sealing spring are arranged between the valve rod and the connecting seat; the end of the valve rod is connected with a valve core; and the valve core is positioned at the upper end of a valve port. The angle seat valve is compact in structure, safe, reliable, long in service life and easy to manufacture.

The thermit reduction process of preparing Al-Sc alloy has Sc2O3 as main material, NH4HF2, NaF and alkali metal chloride as fluorinating agent and flux, and metal aluminum as reductant and main alloy component, and through heating inside aluminum or graphite crucible at 850-1100 deg.c for some period and casting into Al-Sc alloy ingot. The Al-Sc alloy contains Sc 1-3 wt%, Al+Sc over 99 wt% and small amount of Fe, Si, Ca, C and F, each of which less than 0.05 wt%, and the process has Sc yield over 80 %. The technological process is simple and reliable, and the Al-Sc alloy has low impurity content and excellent performance, and is suitable for use as additive for various Al, Mg and other precise alloy to raise their performance obviously.

The invention relates to a polypropylene compound which forms bright white (yellow) marks on dark background and a preparation method thereof. The polypropylene compound includes the following components which are blended: 100 weight portions of polypropylene; 0.1 weight portion to 20 weight portions of powdered rubber; 0.01 weight portion to 0.5 weight portion of carbon black; wherein, the powdered rubber includes SBR powdered rubber or/and carboxylated styrene butadiene powdered rubber. The preparation method includes the following step: the components including polypropylene, powdered rubber and carbon black are melted and blended by the proportion of components. The polypropylene compound of the invention can overcome the problems that polypropylene is difficult to produce laser marks, poorer physical performance and more expensive price of materials produced by too much laser promoter in the prior art; the preparation method of the invention has simple and reliable process.

The invention provides an elastic sorting device of a potato separator. The device is characterized in that long and short connecting pieces of an extension frame are overlapped and connected to form five rhombuses with sequence numbers of I, II, III, IV and V; a motor frame is mounted in the hinged place of end parts of the long connecting piece of the rhombus III; a speed reducing motor is connected with a flange of the motor frame, and drives each elastic sorting roller, supported on the extension frame by two ends, to rotate through a transmission device; after two ends of one elastic sorting roller I and one elastic sorting roller II respectively penetrate through circular holes in short connecting piece bosses of the rhombuses I and V, extension ends in the direction of the speed reducing motor are connected with single-row chain wheels; the extension ends, penetrating through the extension frame, of the rest elastic sorting rollers are all connected with the single-row chain wheels, and penetrate through the single-row chain wheels in the hinged place of the rhombuses II and III; and the extension ends towards the speed reducing motor are connected with the speed reducing motor. The device can conveniently classify cleaned potatoes, and is low in skin breakage rate, stable and reliable in work, uniform and thorough in sorting and wide in application range.

The invention provides a special method for finishing efficiently antibacterial, crease resistant and anti-ultraviolet all cotton terylene textile, comprising the following steps that: the fabric is subjected to padding by an antimicrobial FBR-5 mixing solution, an FSA softening agent and a uv resistant agent, after the high temperature preliminary drying and baking, each effect of the material is intensified, the three resisting effects are excellent; moreover, the textile processed by the method has the antibacterial protecting function and the function of blocking the radiation of ultraviolet radiation on human body, the antibacterial grade is up to seven, the anti-ultraviolet grade is up to five, and the water washing is up to the fourth after the crease resisting process for 12 times. The textile has good durability and washability, feels cool and refreshing if a person wears the textile in the summer, ensures that skin feels comfortable and moderate and has fresh and clean as well as lasting odorant.