35results about How to "Wide range of process adaptation" patented technology

The invention discloses high magnetic induction grain-oriented silicon steel with B800 being more than or equal to 1.94T. The silicon steel comprises the following components in percentage by weight: 0.045-0.075 percent of C, 2.95-3.35 percent of Si, 0.05-0.20 percent of Mn, 0.005-0.015 percent of S, 0.004-0.010 percent of N, 0.03-0.10 percent of Sn, 0.01-0.1 percent of Cu and 0.020-0.034 percent of Als. The production method comprises the following steps: smelting, performing continuous casting to form a blank, and heating the cast blank; performing segmented hot rolling; normalizing and cooling in a dry total-nitrogen atmosphere; performing aging and cold rolling by using a one-step cold rolling method; decarburizing and annealing; performing nitriding treatment; performing conventional coating of a release agent; coiling and performing conventional high-temperature annealing, wherein the annealing atmosphere refers to dry or wet nitrogen or hydrogen or conventional nitrogen and hydrogen mixed gas; and performing conventional stretching, flattening, papplying insulating coatings and annealing. The cast blank is heated at a low temperature, the process application range is wide, and the number of effective inhibitors is controlled, so that the B800 is more than or equal to 1.94T, and P1.7/50 is less than or equal to 0.88W/kg. The silicon steel is used for preparing common transformers, the materials can be saved, and the overload impact resistance can be improved.

The invention discloses a fast organic waste recycling hot enzyme aerobic treatment technology. The fast organic waste recycling hot enzyme aerobic treatment technology comprises the steps of: according to the proportion of (6-8):(2-4), respectively placing organic wastes and crop straw or wood chips into a hot enzyme reactor for stirring for 5-10min, respectively adding 0.05%-0.2% of heat-resistant enzyme and 0.05%-0.3% of thermophilic bacteria according to the weight percentage of the organic wastes and crop straw or wood chips, carrying out primary enzymatic fermentation, thorough decomposition and exhausting through the reactor, controlling the temperature of materials at 70-80 DEG C, controlling the humidity of the materials in the reactor to be 60%-70%, wherein the first-time exhausting amount is 100-500m<3> of per tonnage per hour, the exhausting time is 16-18 hours, and the rotating speed of stirring blade of the reactor is 1-20r/min; 16-18 hours later, finely adjusting the parameters of the hot enzyme reactor automatically, carrying out secondary enzymatic fermentation, thorough decomposition and exhausting, controlling the temperature of the materials to be 80-95 DEG C, the rotating speed of the stirring blade of the reactor to be 1-20r/min for 6-8 hours, wherein the second-time exhausting amount is 150-750m<3> of per tonnage per hour, and the exhausting time lasts for 6-8 hours; and then cooling and sieving, or further pelletizing or embedding to obtain the finished product.

The invention relates to a method for recovering rare and precious metal from copper anode slime copper leaching liquid. The method comprises the following steps that 1, rare and precious metal are strengthened and reduced form the copper anode slime copper leaching liquid; and 2, ultrafine particles of rare and precious metal are precipitated, and purification of the copper leaching liquid is synergistically conducted. According to the method for recovering the rare and precious metal from the copper anode slime copper leaching liquid, the copper leaching liquid is pre-treated through the process and can be effectively purified, and the impurity content is reduced, the key point is that the rare and precious metal is efficiently and synergistically recovered, so that the rare and preciousmetal which is dissolved and dispersed in the copper leaching liquid at an ionic state and ultrafine particle state are effectively reduced and enriched, and rare and precious metal concentrate is obtained; and the concentrate is high in valuable element grade and single in element state, and is a source of high quality raw materials for recovering the rare and precious metal, and the method forrecovering the rare and precious metal from the copper anode slime copper leaching liquid has the advantages of high process adaptability, high reduction rate, less impurities and high efficiency.

The invention relates to a control technology for extracting and purifying nickel from an acid nickel-containing solution. The control technology comprises the technological processes of PH adjustment and oxidation, solid impurity and organic matter removal, foreign ion removal, nickel ion adsorption, cleaning before saturation column regeneration, regeneration and reclaiming agent preparation control, exchange column cleaning, resin conversion, column cleaning after conversion, standby preparation and concentrating. The technical limitations that nickel in an aqueous solution recycled through a traditional ion exchange technology is low in purity, low in concentration and high in acidity are broken through, purifying, extracting and concentrating of the nickel are conducted through combination of a plurality of varieties of ion exchange resin and special processing techniques, a nickel sulfate recovery solution with high purity, high concentration and low acidity is obtained, and the nickel sulfate recovery solution can be directly used for producing high-purity nickel salt, metallic nickel, plated nickel and other nickel products.

The invention belongs to the technical field of silicon steel production, and particularly relates to a method for producing Hi-B steel through an intrinsic inhibitor method and a casting blank low-temperature heating process. The method comprises the steps of converter smelting, RH refining, continuous casting, plate blank heating, hot rolling, normalizing, cold rolling, decarburizing annealing and high-temperature annealing. Casting blanks are subjected to low-temperature heating, and the process is wide in application range, and the inhibiting ability is sufficient; and according to the Hi-B steel obtained through the method, the B<8> value is up to 1.988 T, and P<17/50> is as low as 0.836 W/kg.

The invention discloses a high-efficiency pipe intelligent production line digital management system, and the system comprises: a main data management module which is used for material main data management and production project information management; a product data management module which is used for converting the model file into a production BOM; a plan scheduling module which is used for production scheduling of the pipes under one task package; a line edge inventory management module which is used for managing the line edge inventory of a workshop and managing the furnace batch number ofa pipe; a production MES module which is used for managing the whole production process of the pipe; a hardware SCADA monitoring module which is used for monitoring the equipment state of the production line and sending a production instruction to the automatic production line; and an external interface module which is used for data interaction between the management system and other systems. Thecharacteristics of intelligence, high efficiency and flexibility in production are considered, the process application range is wide, the capacity is expandable, the informatization planning scheme concept and configuration of the intelligent pipe production line are advanced, and the intelligent development direction is met.

The invention discloses a carbon nano tube antistatic film and a preparation method thereof. The preparation method comprises the following steps: covering a substrate surface with a polymer layer to form a composite film; arranging uniformly-distributed carbon nano tubes on the surface of the polymer layer of the composite film; heating the polymer layer to at least enable the surface of the polymer layer to be in a viscous flow state, and part of carbon nano tubes on the surface of the polymer layer to be automatically embedded in the polymer layer; cooling the polymer layer, and using a cross-linking agent to at least enable polymers on the surface of the polymer layer to cross-link, thereby obtaining the carbon nano tube antistatic film. The preparation method provided by the invention is simple in process and wide in application range, and facilitates large-scale preparation; the formed antistatic film is excellent in comprehensive performance, for example, the light transmittance and the electrical conductivity of the antistatic film are excellent, and meanwhile, the antistatic film has excellent water resistance, alcohol resistance, wearing resistance and the like.

The invention discloses a crystallization method. The crystallization method comprises the following steps: feeding one part of mother solution from a centrifugal mother solution collection container to a front section through a mother solution pump, transferring the other part of the mother solution to a low-temperature mother solution preparation tank through the mother solution pump; associating the mother solution in the low-temperature mother solution preparation tank with a low-temperature water preparation unit through a low-temperature mother solution circulating pump, cooling the mother solution through the low-temperature water preparation unit, and maintaining the temperature of the mother solution in the low-temperature mother solution preparation tank in a set range; pumping the low-temperature mother solution from the low-temperature mother solution preparation tank into each mixing and cooling crystallization kettle through the low-temperature mother solution pump, mixing the mother solution with hot materials in the mixing and cooling crystallization kettle, carrying out solid-liquid separation in a centrifugal machine after the temperature and crystallized product in the mixing and cooling crystallization kettle are stabilized, feeding the mother solution into the mother solution collection container for recycling. According to the method, the crystallization efficiency can be effectively improved, and energy conservation and consumption reduction are realized.

The invention relates to a local micro-arc oxidation device and method for titanium alloy workpieces, and belongs to the technical field of titanium alloy surface treatment. The device comprises a mobile micro-arc oxidation power supply, to-be-machined workpieces, a stainless steel cathode tube, an oxidation tank, a solution circulation recovery device and a solution cooling system. The device andmethod have the beneficial effect that firstly, a region where micro-arc oxidation is not needed is shielded through the ink during use, then a local micro-arc oxidation process is used for repairingtreatment, the electric fields of the surfaces of the workpieces are restrained through the tubular stainless steel cathode tube to realize local micro-arc oxidation control on the surface of the titanium alloy, solution flows through the surfaces of the to-be-machined workpieces through a tubular stainless steel cathode port, then the solution flows back to the oxidation groove, shapes and oxidation parts of the workpieces are not explicitly required, and the process adaptation range is wide.

The invention discloses a harmless treatment device and process for steel pickling waste liquid, and belongs to the technical field of waste liquid recovery and treatment. The device comprises a wasteliquid storage tank, a sedimentation tank and a sand filter tank which are sequentially connected by a pipeline, the sedimentation tank is communicated with the sand filter tank through a drainage pipe, and a venturi mixer is disposed between the sedimentation tank and the waste liquid storage tank and communicated with a lye tank through a pipeline. The bottom of the sedimentation tank is connected with a concentration tank which is communicated with the waste liquid storage tank through a wastewater pipeline. The concentration tank is sequentially connected with a pickling waste acid tank,a filtering device and a reaction kettle through a residue discharging pipeline, a scrap iron tank is connected to the top of the pickling waste acid tank, and a stabilizer tank and an oxidizer tank are connected to the top of the reaction kettle. Wastewater and waste acid produced by steel pickling in steel machining enterprises are comprehensively treated and utilized, and no wastewater, waste gas or waste residues are produced, so that the enterprises can truly achieve harmless clean production.

The invention provides a red mud iron separation method and relates to a method for recovering iron from red mud. On the basis of a rough and fine red mud iron separation operation process, a tailingsscavenging process, a rough concentrate cyclone desliming process, a fine concentrate pulp desliming process, a tailings desliming process and a desulfurization process are added. The problem of highsulfur content in iron concentrate is solved, the metal recovery rate is increased, and the concentrate grade is improved.