43results about How to "Meet ingredient requirements" patented technology

The invention relates to a method for spray-welding anisotropic material on a cast iron valve plate. The specific technique includes the steps of: valve plate selecting, valve plate sealing surface polishing, sanding and coursing, adopting special valve plate sealing surface spray-welding device to spray weld the valve plate sealing surface, adjusting the current of a wire feeder to 200A-400A and the voltage to 10V-40V to maintain the wire-feeding speed at 3-8m / min, obtaining the supersonic speed particle radiation under the working conditions that the gas flow is adjusted to be 3-6 square meters per hour and the power is adjusted to be 50-80kW, opening the spray gun opening for spray-welding, ensuring the welding wire from the spray gun to form beam-shaped flame, sending two electriferous welding wires to the spray gun, generating electric arc at the contact tips of the two welding wires to form molten drops, spraying the melt molten drops through compressed air onto the surface of working piece to form a coating layer, and detecting. The invention has the beneficial effects that the spray-welding process is simple; the heating before welding and the heat processing after welding are not needed for the valve plate; the stainless steel spray-welding layer is firmly combined with the valve plate main body, the valve plate is prevented from crackles; thereby the purposes of increasing the wearing resistance and the corrosion resistance of the valve plate are achieved.

The invention discloses a method for calcining Belite sulphoaluminate cement clinker by using phosphogypsum and the cement clinker, and belongs to the field of cement. The method for calcining the Belite sulphoaluminate cement clinker by using phosphogypsum comprises the following steps of 1, weighing, by mass, 75-80% phosphogypsum, 10-15% of aluminum raw materials and 10-15% of siliceous raw materials, and conducting mixing and grinding to obtain a cement raw material; 2, preheating the cement raw material at 1,000-1,100 DEG C, conducting desulfurization for 160-180 minutes, and calcining thecement raw material at 1,320-1,350 DEG C for 60-80 minutes until the clinker mineral is completely formed. The method for calcining the Belite sulphoaluminate cement clinker by using phosphogypsum and the cement clinker have the advantages that the original calcium raw material is not used in the accessory material, and phosphogypsum is utilized to the maximum degree.

The invention discloses a method for preparing copper-containing aluminum alloy by regenerating aluminum alloy waste from aviation industry. The invention belongs to the fields of circular economy technology and environmental protection. Its main technical scheme is to use the aviation industry aluminum alloy mixed waste after stripping, according to the target alloy composition requirements, add an appropriate amount of metal or alloy for composition control, smelting in a vacuum furnace, and achieve aluminum alloy impurity removal by controlling the smelting conditions process. Removal and alloying are carried out simultaneously, and the target copper-containing aluminum alloy is prepared by casting after filtering and removing impurities. The invention makes full use of the alloy components in the aluminum alloy waste of the aviation industry, and can realize the regeneration of different types of aluminum-copper alloys without additional degassing through on-line / off-line alloy component control and short-range smelting. The recovery cost is low, the industrial production is easy, and the Significant economic, environmental and social benefits.

The invention discloses a typical-working-condition-based adaptive cement raw meal batching system and a batching method thereof. The batching system comprises an expert system for judging a working condition, a knowledge base for selecting the optimal proportion adjustment strategy, and an automatic adjusting system for adjusting the proportion; and the batching method comprises the following steps: (1) firstly, building the knowledge base for control rules of typical working conditions in a cement raw meal batching process, wherein the typical working conditions comprise ideal working conditions and special working conditions; (2) judging the working conditions by virtue of the expert system; and (3) adopting different control rules according to different working conditions, automatically selecting the optimal proportion adjustment scheme. The system and the method integrate theoretical calculation and artificial intelligent unique control rules to realize self-adaptation to various work conditions of raw material fluctuation, and thus the components of the raw materials are stable; and the batching requirements under different technological conditions can be met by adopting a plurality of adjustment modes and strategies.

The invention discloses a method for smelting rail steel with vanadium-bearing hot metal as raw materials. The method comprises the steps that firstly, deep desulphurization is carried out on the vanadium-bearing hot metal through a combined injection method, and thus low-sulfur vanadium-bearing hot metal with the sulphur content smaller than 0.008% is obtained; then, the low-sulfur vanadium-bearing hot metal is put in a converter, a dephosphorization agent is added, blowing vanadium and carbon holding pre-dephosphorization is carried out, and thus vanadium-bearing semisteel with the P content smaller than or equal to 0.040% is obtained; a part of the vanadium-bearing semisteel is tapped in a steel ladle, smelting deep dephosphorization continues to be carried out on the rest part of the vanadium-bearing semisteel through converter slag formation, and thus end point molten steel with the P content smaller than or equal to 0.008% is obtained; and finally, tapped steel of the end point molten steel and the vanadium-bearing semisteel are mixed, a proper amount of deoxidization alloy and high-alkalinity refining slag is added, bottom argon blowing mixing is carried out on the steel ladle, and qualified molten rail steel is obtained. According to the method disclosed by the invention, the operation method is simple, and the production cost is low; the effective utilization and extraction of vanadium resources are guaranteed, and dephosphorization and little slag smelting can be effectively achieved in the converter steelmaking process; meanwhile, the energy is saved, the amount of adopted ferrovanadium alloy and carburant is greatly lowered, and the smelting cost is lowered.

The invention relates to a Galfan alloy, particularly a method for efficiently smelting a Galfan alloy. The invention solves the problem in addition of the high-melting-point alloy and low-ignition-point alloy in the non-ferrous metal alloy preparation process, especially solves the problem of oxidizing combustion of the low-ignition-point alloy in the preparation process, and has obvious effects. A partition process adopted in the zinc-rare earth interalloy smelting process prevents the burning loss and oxidation of the rare earth, so that the burning loss rate is low, and the alloy element absorptivity is high; and thus, the partition process can effectively purify the solution and refine the grain. When being used for smelting a zinc-aluminum alloy, the method lowers the percentage of zinc and the mass ratio of aluminum zinc, reduces the segregation of aluminum, ensures the accuracy and uniformity of the chemical components, satisfies the requirements for the alloy components, and is suitable for mass production of the Galfan alloy.

A method and system for quality control of cement raw meal based on generalized inverse matrix, the method includes the following steps: S1: determine the expected target value of cement raw meal quality; S2: determine the required ratio of various raw materials in cement raw meal, and give The relationship between raw materials and their active ingredients; S3: According to the raw materials, active ingredient content and expected target value, use the generalized inverse matrix theory to calculate the corresponding relationship between the expected target value and raw materials; S4: According to the expected target value, given target The coefficient matrix of the corresponding relationship between the value and the active ingredient, and the coefficient matrix of the effective ingredient contained in the raw material, use the corresponding relationship obtained in step S3 to adjust the ratio of the raw material. The present invention calculates the ratio of raw materials according to the given target value, ensures the stability of the raw meal components after grinding, meets the batching requirements under different process conditions, realizes the real-time adjustment of raw material ratios, and reduces the ratio of raw materials Value fluctuations ensure the quality of the raw meal and the robustness of the entire raw meal quality control system.

The invention belongs to the field of solid waste resource utilization,and discloses a method for preparing glass ceramics by using waste incineration ash synergistic pickling sludge. The method useswaste incineration ash as a main raw material,uses the pickling sludge as a nucleating agent,obtains base glass by high temperature melting,and obtains the glass ceramic by one-step heat treatment. The method achieves the harmless disposal and high-value utilization of the waste incineration ash and the pickling sludge,prepares the glass ceramic through a melting-one-step heat treatment method,andhas the advantages of short process flow,energy saving and easy industrialization.