429results about How to "Smooth process" patented technology

The invention provides a river surge silt d harmless and recycling treatment method. In the method, a dredger is utilized to suck silt, the silt is sent into a biochemical treatment pond from the ship through a silt transmission pipeline, compound enzyme is utilized to carry out bioremediation, gravels and sands with the particle size bigger than 1mm are filtered out by a primary hydrocyclone and a vibration screen, sands with the particle size of 0.075-1mm are filtered out by a secondary hydrocyclone and the vibration screen, powdery particles with the particle size of 0.025-0.075mm are filtered out by a third-level hydrocyclone and the vibration screen, powder particles are further separated out from outlet silt tail water through a sediment tower, sewage from the sediment tower is filtered by utilizing a fiber filter after flocculant is added into the sewage, and powdery particles are deposited from backflushing silt after being filtered by utilizing the sediment tower again, and the powdery particles are dehydrated by the third-level hydrocyclone and the vibration screen after entering a sludge pool and are cured by a curing agent after dehydration. The method has high resource utilization ratio, meets the requirements for the environmental protection, particularly carries out stage treatment on the silt, lowers the cost and enhances the efficiency.

The invention provides a preparation method of an epoxy-modified insulated thermal-conductive high-temperature resistant organosilicon coating, comprising the following steps: preparing raw materials; synthesizing an organosilicon pre-polymer; synthesizing an epoxy-modified organosilicon resin; and preparing the epoxy-modified insulated thermal-conductive high-temperature resistant organosilicon coating. The invention also provided the epoxy-modified insulated thermal-conductive high-temperature resistant organosilicon coating prepared by the method. The coating is composed by the epoxy modified organosilicon resin, fillers, a coupling agent and solvents. The coating prepared by the method in the invention takes account of insulation, thermal-conductivity, and high-temperature resistance at the same time, has coating adhesion of first level, hardness of 5H, a breakdown voltage of 1800V/0.5mA, 2 seconds, a heat transfer coefficient of larger than 100W/(m<2>.K), and no obviously changed coating at a temperature of 250 DEG C for 24 hours, therefore the coating can be widely used in various industrial equipment and household appliances.

The invention discloses an inkjet printing process of a cotton fabric. A technological process which comprises the processes of sizing pre-treatment, drying, inkjet printing, steaming and colour fixing, after treatment, washing and drying is adopted, preshrinking process treatment is carried out firstly before the sizing pre-treatment, so that the phenomenon that printed flowers are irregular owning to shrinkage of the cotton fabric in the inkjet printing process is effectively avoided; besides, idiosyncratic inkjet printing pigment ink is adopted for carrying out inkjet printing, cold water and hot water are alternate for multiple times in a washing process, chemical tolerance of a pigment is stimulated, and washing resistance and adsorption rate of the cotton fabric are improved. The inkjet printing process of the cotton fabric has the advantages of smooth printing, appropriate colouring depth, difficulty in colour fading and simple technology.

The invention provides a composite slagging agent for semi-steel making. The composite slagging agent contains iron oxide, MnO and SiO2, wherein the iron oxide is Fe2O3 and/or FeO. The invention also provides a preparation method for the composite slagging agent and a semi-steel making method. According to the composite slagging agent provided by the invention for semi-steel making, the preparation method is simple, the consumption of the composite slagging agent in the semi-steel making process is low, and the composite slagging agent can be used for slagging and dephosphorization in the semi-steel making so that the semi-steel making process is performed more smoothly; and meanwhile, the composite slagging agent can effectively improve the Mn element content of the final molten steel and correspondingly reduce the consumption of Mn-containing alloy added in a subsequent step of the steel making production so as to reduce the steel making production cost.

The invention provides a rubber composite for wear-resistant tire treads. The rubber composite is prepared from, by weight, 4-30 parts of natural rubber, 4-40 parts of butadiene rubber, 4-40 parts of styrene butadiene rubber, 35-75 parts of high-dispersion white carbon black, 3-10 parts of white mineral oil, 1.0-2.5 parts of indirect zinc oxide, 1.0-2.0 parts of stearic acid, 1.0-2.0 parts of rubber protecting wax, 1.0-2.8 parts of silane coupling agent, 1.0-2.0 parts of anti-aging agent, 1.0-2.0 parts of tackifying resin, 1.0-2.0 parts of dispersing agent, 1.0-2.8 parts of common sulphur, 0.5-2.0 parts of accelerant CZ, 1.0-2.0 parts of accelerant DPG and 0.1-1.0 part of accelerant DM, by proportioning according to the formula prior to mixing via an internal mixer. The rubber composite is mixed via the internal mixer by means of blending the natural rubber and the synthetic rubber as main materials which are matched with the high-dispersion white carbon black as a reinforcing agent and through unique anti-aging system design, and accordingly tire treads produced by the rubber composite are excellent in wear-resisting property, good in tear resistance and high in tensile strength, and service lives of tires for taxies, family cars and the like can be prolonged.

The invention discloses a method for producing zero layer photoetching marking of a high-voltage device without barrier layers. The method for producing the zero layer photoetching marking of the high-voltage device without the barrier layers comprises the following steps: (1) etching a zero layer lithography marking groove, (2) depositing a layer of medium layer and removing medium layers of regions outside the zero layer lithography marking groove, (3) etching a deep groove, (4) selectively growing an epitaxial layer on a silicon substrate, (5) removing anti-configuration epitaxial materials deposited on the silicon substrate in the epitaxial growth process of epitaxial layer, (6) etching away a medium layer inside the zero layer lithography marking groove by the adoption of the method of wet etching and leaving a zero layer lithography marking graph. Through the method for producing the zero layer photoetching marking of the high-voltage device without the barrier layers, lithography markings which are easy to recognize can be formed on the high-voltage device without the barrier layers, and therefore a follow-up film layer can be directed at conveniently, smooth of technological process can be guaranteed, and good yield of a product is improved.

The invention relates to a flat acrylic fiber and a production method thereof. The flat acrylic fiber consists of the following components in percentage by weight: 91-94 percent of acrylonitrile and 6-9 percent of vinyl acetate, wherein the length-width ratio of the flat acrylic fiber is (2-13):1. The method for producing the flat acrylic fiber comprises the following steps: carrying out copolymerization reaction on the acrylonitrile and the vinyl acetate to prepare dried polyacrylonitrile powder, dissolving the powder in a solvent to form a stock solution, extruding from a rectangular hole of a spinneret plate after heating, and performing double diffusion to form a nascent fiber in a coagulating bath; washing the nascent fiber by water, and drawing the fiber through a drawing machine; oiling tows; and drying the tows and setting, so as to obtain the flat acrylic fiber. The contents of the acrylonitrile and the vinyl acetate in a copolymer, the molecular weight of the copolymer and a specific process flow are adjusted, so that the prepared flat acrylic fiber is good in handfeel, the softness and handfeel of the fiber can be improved, the rebound resilience, hydrophobicity and spinnability of the fiber can be guaranteed, and the acrylic fiber is easy to color.

The invention discloses a method for extracting alkannin from alkanet, which is characterized in that the alkanet is mixed with an aqueous solution containing alcohol in accordance with a certain ratio of material to liquid and put into a pulp refiner for homogenate extraction. Solid-liquid separation is carried out to a mixture obtained after the homogenate to obtain an extracting solution. Solid contents are then mixed with the aqueous solution containing alcohol according to a certain ratio of material to liquid and put into the pulp refiner for the homogenate extraction to obtain an extracting solution. The extracting solutions are merged and then decompression condensed to obtain a crude product of alkannin. The operation technology is mainly characterized by smooth process, simple operation, extraction at room temperature for avoidance of the degradation of alkannin, recyclable reagents used, low energy consumption, low production costs and high yield.

The invention relates to a hygiene-grade rotating-anchor-type and fixing-type combined blade stirrer. The hygiene-grade rotating-anchor-type and fixing-type combined blade stirrer comprises a motor, a speed reducer, a transmission shaft, cover-type nuts, fixing bases, end sockets, a coupler, a rotating-anchor-type stirrer body, fixing-type stirrer bodies, rotating stirrer blades, fixing stirrer blades, scratch boards, device flanges and a tank. The fixing-type stirrer bodies are installed at the top ends of the end sockets on the two sides of a stirring shaft of the rotating-anchor-type stirrer body, the scratch boards are installed on the outer sides of supports on the two sides of the rotating-anchor-type stirrer body, and the rotating stirrer blades and the fixing stirrer blades are correspondingly and alternately installed on the stirring shaft and fixing shafts. The hygiene-grade rotating-anchor-type and fixing-type combined blade stirrer has the advantages that the angle positions of all the blades can be installed according to the requirement of technology operation to meet the requirements of the different working conditions; the stirring range of the stirrer is wide and almost free of dead corners, and full stirring can be guaranteed; when materials with different production technologies are stirred, the device is flexible in assembling, reliable in fixing and quite convenient to disassemble, assemble, replace, wash and maintain.

The invention provides a treatment method of tobacco sheet production wastewater. The treatment method comprises the following steps of: removing slag, carrying out chemical de-calcification, carrying out anaerobic treatment, carrying out electrolysis, carrying out A/O treatment, carrying out secondary electrolysis, biochemically processing by using a biological aerated filter, and disinfecting and treating sludge. The treatment method of tobacco sheet production wastewater is used for treating the tobacco sheet production wastewater by combining a chemical de-calcification technology, a biochemical technology, an electrochemical technology and a BAF (Biological Aerated Filter) technology, so that the cost is lower and the efficiency is higher, and therefore, the wastewater can be exhausted after reaching the standards.

The invention discloses a hazard-free treatment technology for electrolytic manganese residues. The technology comprises the following steps: washing the manganese residues in a high-pressure manner by using slurry water, and basically enabling the manganese residues to form slurry liquid; injecting the manganese residue slurry liquid into a filter chamber of a membrane press filter to be filtered to obtain a filter cake, and performing two-section acid leaching on the filter cake under a prepressing state; keeping the prepressing state, and injecting multi-stage washing liquid into the filter chamber to be washed in a multi-section manner; injecting alkali liquid of which the pH is 9 to 10.5 into the filter chamber to solidify manganese ions, and inflating the air into a filter liquid passage in a stage manner during the solidifying treatment; performing the high-pressure press filtering on substances in the filter chamber, and after the solidifying treatment is finished, discharging the residues. Through the adoption of the technology provided by the invention, the soluble manganese ions in the electrolytic manganese residues can be further extracted, and at the same time, the manganese ions in the filter cake are converted into the insoluble manganese to be deposited, so that the remained manganese ions in the waste residues cannot be permeated into the ground surface or the underground water to pollute the underground water resources in the stacking process.

An improved three-pass cylinder drying machine comprises a machine body composed of a bracket, a sealed tank and a cylinder body, and a driving device, a supporting device and a controller, wherein the axial line of the cylinder body of the machine body is parallel to the horizontal surface, an inner cylinder and an outer cylinder that are concentrically arranged are assembled together in a staggered way to form the cylinder body, the formed cavities are used as three drying and precipitation units, the adjacent wallboards of the inner, middle and outer cylinders are connected and positioned via regulating and supporting plates and reinforced buffer plates, a heat insulating cover is disposed at the outer periphery of the wallboard of the outer cylinder, three material homogenizing and spreading machines are respectively disposed at the inner surfaces of the inner, middle and outer wallboards in a screw propulsion way and has reversed helical lines, and gears at the outer periphery of the machine body are aligned with the center of gravity of the cylinder. The inventive three-pass cylinder drying machine effectively solves the shortcomings of the conventional cylinder drying machine, including high deformation and misplacement liability and high axial dislocation liability; and has the advantages of reasonable structural design, stable performance, large precipitation range for one time, high thermal efficiency, saved energy consumptionand wide application range.

The invention relates to a method for producing diammonium phosphate by using extract spent acid resulted from phosphoric acid purification. The method comprises the following steps: adding a modified frequency modulator on an extract spent acid conveying pump and ensuring the conveying amount of the extract spent acid to be constant; mixing the extract spent acid with common raw material phosphoric acid, and causing the content of sesquioxide in the complex acid to be lower than 3 percent; adding surfactant in the complex acid to increase the fluidity and the surface activity of a reaction slurry and reduce the viscosity of the reaction slurry; and according to a conventional method, using ammonia to neutralize the complex acid so as to obtain the diammonium phosphate. The method is a precedent in realizing the recovery of high-content impurity acid and the production of fine-quality diammonium phosphate products meeting national standards, when compared with a conventional process. The procedures in the method are unhindered, thereby being favorable for reasonably utilizing the phosphorus resource and conforming to the requirement of recycling economy. The method is suitable for enterprises producing the diammonium phosphate of purified phosphoric acid by using extracting agent.

The invention relates to a kitchen waste high-value-application method. The method comprises the following steps: S1, pretreatment: performing a hydro-thermal treatment on the kitchen waste, performing a three-phase separation on the treated kitchen waste; S2, preparation of biodiesel with grease: preparing the biodiesel by performing a transesterification on the grease prepared by three-phase separation in the S1 and short-chain alcohol under the action of a catalyst; S3, solid kitchen waste treatment: continuously performing alcohol fermentation and/or lactic acid fermentation on the solid kitchen waste prepared by the three-phase separation in the S1, feeding insects with the fermented residues; S4, waste water treatment: performing waste water treatment on waste water prepared by three-phase separation in the S1 and waste water generated by fermentation in the S3. By adopting the kitchen waste high-value-application method, the kitchen waste is treated comprehensively by combining a plurality of means to obtain high-valued products, and the treated kitchen waste is low in residue, and is high in utilization rate.

The invention discloses a production workshop for a 55m PHC tubular pile, the workshop plans to adopt a traveling crane on the basis of the original planar layout, the procedures of mold-closing and stretching-centrifugal operation-steam curing under normal pressure-removal from mold are arranged in two areas, which minimizes the movement distance of a template in one circle ( the movement distance of an upper die (in two areas) is that 55m multiplied by 2 is equal to 110m ), so the efficiency is high; the normal pressure curing area is besides the centrifuge, thus guaranteeing the security and smaller influence of the noise on workers. The technical improvement leads the workshop provided by the invention to be reasonable in layout, smooth in technique; besides, the production efficiency can be improved while the space can be saved.

The invention provides a manufacturing method of a component with vacuum stiffener structure by vacuum guiding. The method comprises the following steps of: (1) preparing a mould, cleaning out the surface of the mould, and then spraying a mold release agent for at least one time and drying the mould release agent completely; (2) laying a reinforced material layer on the mould which is processed by step (1) according to required size and the thickness of the layer; (3) placing the stiffener on the reinforced material layer; and (4) laying demoulding cloth and high permeable medium on the layers of the stiffener and the reinforced material and laying out an inlet and an outlet for resin. The method is characterized in that a balloon is put into the stiffener in the step (3) and the balloon is filled with air. The method has the advantages that the function and integrity of ships, large components of locomotives and vehicles, or an enginery room cover are improved, the manufacture cycle of a product is shortened, and the manufacture cost is reduced.

The invention discloses an automatic discharging device for a punching machine, which is applied on a punching head of the punching machine and comprises a cam and a rocking bar driven by the cam, wherein a guiding and discharging seat is arranged at the tail end of the rocking bar; the guiding and discharging seat is in sleeved connection with the punching head and moves together with the punching head; and the linear speed of the guiding and discharging seat, which is produced by the swinging amplitude of the rocking bar, is lower than recovery speed after punching of the punching head. As the speed after punching and recovery of the punching head is higher than the lifting speed of the guiding and discharging seat, relative displacement is produced between the punching head and the guiding and discharging device; and thus, the blank material tightly sleeved on the punching head after punching automatically fall down to the position of a mold under the resistance of the guiding and discharging seat, and the smooth implementation of each process is ensured.