64results about How to "Conducive to cost reduction and efficiency increase" patented technology

The invention discloses a low-altitude target detecting system of a three-coordinate continuous wave one-dimensional phase sweeping unmanned aerial vehicle, and is aimed at providing a detecting device high in data detecting rate and anti-interference capacity. By means of the technical scheme, the system measures a target distance through a frequency modulation continuous wave ranging system, anantenna feedback subsystem converts radio frequency signals into electromagnetic wave signals to be radiated to the space, a receiving subsystem conducts amplifying, frequency varying and SFC controlprocessing on echo signals output by an emission and wave control subsystem, a signal processing subsystem generates the working time sequence of the whole system, measures the three-coordinate vectors of the distance, direction and pitching of a target position and calculates frequency modulation continuous wave ranging data of target signals, and a data processing and communication control subsystem parses the target angle, establishes the trajectory of target movement, controls the working mode of a radar and detects three-coordinate target information according to the target signals calculated by the signal processing subsystem and the antenna angle information output by the antenna control subsystem.

The invention discloses a fast and accurate detection method for silicon dioxide content in limestone, kalk and dolomite. The detection method comprises the following steps: crushing samples, and drying for 1.5-2.5 h under thea temperature of 105-110 DEG C; mixing 0.1000 g samples and 3.0-4.0 g mixed fluxing agent of sodium carbonate and boric acid evenly, liquating for 18-20 min under athe temperature of 890-910 DEG C, dissolving frits by a 45-55 ml hydrochloric acid and 25-35 ml water, and placing the test solution in a 250-ml volumetric flask; taking and adding 5.00 ml test solution in a 100-ml volumetric flask, adding 18-22 ml ammonium molybdate and still standing for 18-22 min, and adding 45-55 ml mixed acid of oxalic acid and sulfuric acid, 4.80-5.20 ml ascorbic acid-ammonium ferrous sulfate mixed solution; measuring the absorbency of a color development solution at the wavelength of 680 nm through a spectrophotometer, and using blank as a reference; preparing a silicon dioxide standard sample with the concentration of 40 ug/ml, moving and taking 0.00 ml, 2.00 ml, 4.00ml, 6.00 ml, 8.00 ml and 10.00 ml silicon dioxide standard samples, and placing the standard samples in 100-ml volumetric flasks respectively, adding 5.00 ml blank test solution in the volumetric flasks respectively, after color-developing, measuring the absorbency at the same conditions, and then drawing a working curve. The silicon dioxide content in the samples is calculated according to the following formula (shown in the specification). The detection method is fast and efficient, excellent in accuracy, reproducibility and stability, and particularly suitable for detection of samples with silicon dioxide content equal to or higher than 4 %.

The invention provides a method for machining a megawatt wind turbine blade mould. The method mainly comprises the following steps: 1, manufacturing a steel frame; 2, paving a thin-gauge skin laminated plate; 3, paving an isolation film; 4, manually pasting a pavement layer for the first time; 5, grinding and detaching part of the laminated plate, and connecting round steel and the steel frame firmly; 6, manually pasting a pavement layer for the second time; 7, paving a heating system layer; 8, manually pasting a pavement layer for the third time and curing; 9, machining the surface of the mould; 10, spraying a high-gloss gel coat and performing water mill; 11, checking and accepting. The method has the advantages that 1, a conventional mould manufacturing mode is changed, a mater mould machining link is skipped, and the production period is shortened; 2, the manufacturing cost is reduced, and the manufacturing efficiency is improved; 3, manufacturing processes are small in quantity and simple; 4, the controllability is high; 5, the requirement on master mould machining capacity is low; 6, the occupied space is small, and the occupied floor is small; 7, the cost reduction and the efficiency improvement of the mould are facilitated.

The invention discloses a method for detecting the content of active calcium oxide and non-active calcium oxide in lime. The method comprises the steps of crushing lime until the particle diameter is less than or equal to 0.150mm, and drying at 105-110 DEG C for 1.5-2.5 hours; taking 0.5000g of a test sample, and mixing with a blend of 4g of anhydrous sodium carbonate and boric acid, fusing at 880-920 DEG C for 16-24 minutes, putting the fused blocks into 60ml of 8% hydrochloric acid and dissolving at 100-110 DEG C, enabling the volume of a solution to be constant by a 250ml volumetric flask so as to obtain a test solution a; taking 0.5000g of a test sample additionally, adding 5g of saccharose and 45-55ml of water which is boiled firstly and then cooled, vibrating closely for 18-22 minutes, enabling the volume of the solution to be constant by a 250ml volumetric flask so as to obtain a test solution b; removing 50.00ml of the test solution a and the test solution b, and respectively adding 5ml of triethanolamine and 20% potassium hydroxide or sodium hydroxide, so that the pH value of the test solution is greater than or equal to 12.5; then adding 4-5 drops of 1mg/ml magnesium oxide standard solution and 2-3 drops of calconcarboxylic acid, titrating the test solution by an EDTA standard solution until the test solution turns blue from red. The content of the active calcium oxide is calculated according to the following formula as shown in the specification, and the content of the non-active calcium oxide is calculated according to the following formula as shown in the specification, wherein W does not refer to CaO=WTCaO_WfCaO. The method is used for rapidly and accurately detecting the content of the active calcium oxide and non-active calcium oxide in a lime test sample, and is high in popularization and application value.

The invention discloses a detecting method for the phosphorus content in vanadium slag. According to the method, a sample is smashed and dried; the sample and sodium carbonate-boric acid mixed flux are mixed uniformly, the mixture is fused for 20-25 min at the temperature of 900 DEG C+/-10 DEG C, frit is dissolved with 75 ml of hydrochloric acid, and the volume is metered to 250 ml; filtering is carried out, 20.00 ml of filter liquor is taken, three drops of paranitrophenol solution are added, a sodium hydroxide solution is dripped until the solution is yellow, hydrochloric acid is dripped until yellow fades, 5 ml of hydrochloric acid is added, 5 ml of ascorbic acid-hydroxylamine hydrochloride-bismuth nitrate mixed liquor is added, the mixed liquor is placed for 3-5 min, 5 ml of mecaammonium heptamolybdate tetrahydrate-antimony potassium tartrate mixed liquor is added, and the volume is metered to 100 ml; the mixed liquor is placed for 20 min, and with a blank as a reference, a spectrophotometer is used for measuring absorbance of developing liquid at the portion with the wavelength of 700 nm; a phosphorus standard sample with the concentration of 20 micrograms/ml is prepared, transferred and placed into volumetric flasks, water is added, hydrochloric acid is added, after developing, under the same condition, the absorbance is measured, and a working curve is drawn; the phosphorus content in the sample is calculated according to the following formula (see the formula in the description). The method is fast, efficient and particularly suitable for detecting the sample with the phosphorus content of 0.05-1.5%, and has high accuracy, repeatability and stability.

The invention discloses a process of calcium carbonate carbon balls for converter or electric furnace steel tapping deoxidation. Lime stones are grinded to powder with a particle size below 1 mm, are uniformly mixed with graphite carbons with a carbon content of 90%, and are pressed to calcium carbonate carbon balls with a diameter of 30 mm by a dry powder ball press, wherein the adding proportion of the lime stones is 93 mass% of the carbon balls; the adding proportion of the graphite carbons is 7 mass% of the carbon balls; the carbon content in the calcium carbonate carbon balls is controlled at 6 mass%; and in the steel tapping process of an electric furnace or a converter after smelting, 1.5 kg carbon balls are added in each tonnage of steel.

The invention relates to the technical field of lubricant preparation, and discloses a capsule lubricant for drilling fluid, a preparation method thereof, water-based drilling fluid and application. The capsule lubricant comprises a core component and a wall component coating the outer surface of the core component, and on the basis of the total weight of the capsule lubricant, the content of thecore component is larger than or equal to 75 wt%, and the content of the wall component is smaller than or equal to 25 wt%. The capsule lubricant is prepared by the following method: in the presence of a curing agent, carrying out phase separation reaction on an oil-in-water emulsion and a wall component solution, and carrying out spray drying treatment on a reaction product; the oil-in-water emulsion includes a lubricant base oil, a composite emulsifier, and water, and the wall component solution includes a polysaccharide polymer and an acid. When the addition amount of the capsule lubricantis 1%, the reduction rate of the lubrication coefficient is basically 70% or above.

The invention belongs to the field of building materials, and especially relates to a high flexural strength composite Portland cement and a preparation method thereof. The high flexural strength composite Portland cement is prepared from, by weight, 35-65 parts of a Portland cement clinker, 17.5-40 parts of calcined clay, 10-22.5 parts of limestone and 1.5-5 parts of gypsum. The high flexural strength composite Portland cement mainly prepared from the ordinary Portland cement clinker, calcined clay and low-grade limestone concrete is prepared by starting from the concrete core raw material cement and improving the ratio of bending-compressive strength and the flexural strength of cement on the premise of ensuring a high compressive strength, and the preparation method has the characteristics of simple process, and suitableness for industrial production.

The invention relates to the field of decorating plate machining equipment, in particular to decorating plate skin die cutting equipment. The equipment comprises an upper die and a lower die, whereinthe upper die and the lower die clamp and locate a decorating plate. The lower die is arranged on a feeding mechanism. The decorating plate is laid on the upper surface of the lower die. The upper dieis arranged on a vertical lifting mechanism. The vertical lifting mechanism is further provided with multiple die cutting cutters. The feeding mechanism moves the lower die right below the upper die.The upper die descends along with the vertical lifting mechanism and is attached to the upper surface of the lower die to compress and locate the decorating plate. The die cutting cutters carry out die cutting machining on the decorating plate. The equipment is reasonable in overall structural design, compact in connecting and matching, and capable of completing die cutting technologies of edge cutting, drilling and the like of decorating plate injection molding part fully automatically.

The invention discloses a one-step bundling shaping method of a culvert pipe multi-layer reinforcement cage and a bundling shaping device, aiming at bundling and shaping the multi-layer reinforcement cage for culvert pipes for construction in one step and improving the processing speed of the culvert pipe reinforcement cage. The one-step bundling shaping method of the culvert pipe multi-layer reinforcement cage comprises the steps of with the bundling shaping device, adjusting the diameter of the bundling shaping device and bundling layer by layer from outside to inside. The bundling shaping device comprises a radial adjusting mechanism, a centre rod and an axial support rod, wherein the centre rod is sleeved in the radial adjusting mechanism and the both ends thereof are supported by a bracket; and the radial support rod is fixed together with the radial adjusting mechanism. The diameter of the device can be reduced or enlarged by adjusting the radial adjusting mechanism to meet the processing requirement of reinforcement cages with various sizes, the applied size range is large and the maintenance is simple. The invention can effectively improve the processing efficiency, reduce the labor intensity of workers and improve the construction progress of the project and is beneficial to reducing the cost and increasing the benefits.

The invention provides equipment for catalytic cracking and combustion of waste rubber and plastic of a cement kiln head. The equipment comprises a pulverized coal burner, a waste fuel swirling burner, an airlock feeder, a high pressure fan, a meter feeder, a waste fuel bin, a conveyor I, a homogenizer, a meter feeding pump and a catalytic cracking oxidant storage tank. The equipment is simple, and relatively mature equipment is provided for selection; waste tires/waste plastic is used as alternative fuel, and the utilization cost is low; the equipment is high in economy and convenient for popularization; environmental pollution caused by the waste tires/waste plastic can be reduced effectively, and energy consumption and environmental pollution in the recycling and machining process of the waste tires/waste plastic are reduced, in favor of environmental protection; the invention provides new economic and practical equipment for utilizing the waste tires/waste plastic as the alternative fuel of the kiln head for cement enterprises, in favor of energy saving, emission reduction, cost decrease and benefit improvement of the cement enterprises.

The invention provides a dust-falling wheel pick press-planing type combined mining machine for a strip mine, and belongs to the technical field of mining machinery. The dust-falling wheel pick press-planing type combined mining machine for the strip mine realizes continuous mining, loading and transporting, transferring and direct coal storage of a lignite strip mine with loose blasting, is lower in purchase cost, saves energy and reduces consumption, is beneficial to cost reduction and benefit increase, realizes green mining, and reduces environmental pollution. The dust-falling wheel pick press-planing type combined mining machine for the strip mine comprises a main machine platform, wherein a cab is arranged on the upper part of the main machine platform; and a travelling crawler belt is arranged on the lower part of the main machine platform. The dust-falling wheel pick press-planing type combined mining machine for the strip mine is characterized in that a planing and mining mechanism is hinged to the front upper part of the main machine platform; the planing and mining mechanism is connected with a lifting hydraulic oil cylinder and a pitching oil cylinder; the lifting hydraulic oil cylinder and the pitching oil cylinder are fixed on the main machine platform; a material receiving shovel mechanism is hinged to the front lower part of the main machine platform; the material receiving shovel mechanism is connected with a material shovel lifting oil cylinder; the material shovel lifting oil cylinder is fixed on the main machine platform; and a screening and transporting mechanism is connected to the material receiving shovel mechanism.