50results about How to "Prevent overproduction" patented technology

An actual detected current value and a target voltage value of an electric motor are subjected to a low-pass filter process, and amounts of change per time in the filtered actual current value and the filtered target voltage value are calculated. If the amount of change in the actual current value on the increase side is greater than a criterion value and the amount of change in the target voltage value on the decrease side is greater than a criterion value, it is judged that the stroke end has been reached. Then, the upper limit value of the target current value is set at the actual current value obtained in the immediately previous cycle of the feedback control, so as to prevent generation of unnecessary torque.

The invention discloses paper pulp and a high-bulk energy-saving environment-friendly card prepared from the same. The paper pulp is prepared from the following components in percentage by weight: 1 to 10 percent of bleached sulfate softwood pulp, 30 to 70 percent of bleached sulfate hardwood pulp, 20 to 50 percent of chemithermomechanical pulp, and 10 to 30 percent of alkaline peroxide mechanical pulp. The invention also provides the copperplate card prepared from the paper pulp and other components. The paper made with the paper pulp is high in bulk, the gram weight of the paper is effectively controlled to be in a certain range, the paper pulp is prevented from being put into production excessively, and the defibrination energy consumption of a paper machine is reduced correspondingly, so that the effects of environment friendliness and energy saving are effectively achieved.

The invention discloses a whitening and spot-fading composition and a preparation method thereof. The whitening and spot-fading composition comprises the following components: 4-butylresorcinol, diglucosyl gallic acid, nonapeptide-1Light SKN, oxothiazolidine carboxylic acid, ergothioneine, a plant anti-allergy agent and a preservative. Multiple mild and efficient whitening agents are compounded and have a synergistic effect, so that melanin generation can be more effectively inhibited, pigmentation is reduced, and the effects of fading stains and brightening the skin are achieved. The composition provided by the invention is mild and non-irritating to the skin, and can also achieve a certain repairing effect on the damaged skin.

The invention discloses an air-stable sulfide sodium ion solid electrolyte and a preparation method thereof. The chemical formula of the sulfide sodium ion solid electrolyte is Na4xSn1xMxS4yOy, wherein M is at least one of P, As and Sb, x is more than or equal to 0.05 and less than or equal to 0.5, and y is more than or equal to 0 and less than or equal to 0.5. The crystal structure of the sulfidesodium ion solid electrolyte has an I41/acd space group, the isolated [Sn/M]4 tetrahedron constitutes a skeleton, and sodium ions fill five unfilled crystal positions. The sulfide sodium ion solid electrolyte is used for preparing an all solid-state battery. The solid electrolyte material has high ionic conductivity and is stable in air, thereby solving the technical problems that the sulfide solid electrolyte is sensitive to air, easily generates sulfide hydrogen when being exposed to air and causes failure of the solid electrolyte at the same time so as to limit the application of the sulfide solid electrolyte and increase the manufacturing cost of batteries in the prior art.

The invention discloses a device for rapidly responding to required ammonia amount changes in urea-hydrolysis ammonia preparation and an implementation method of the device, and mainly aims to solve the problem of low response speed in urea-hydrolysis ammonia preparation in the prior art. The device comprises a hydrolyzer, an ammonia gas flow control valve, a urine flow control valve, a urine input pipe, an ammonia gas output pipe, a signal analysis display alarming controller, a first signal converter and a second signal converter, wherein one end of the urine input pipe and one end of the ammonia gas output pipe are both communicated with the hydrolyzer; a signal output end of the signal analysis display alarming controller is connected with a signal input end of the first signal converter and the signal input end of the second signal converter respectively by signal wires; the signal output end of the first signal converter is connected with the ammonia gas flow control valve; the signal output end of the second signal converter is connected with the urine flow control valve. According to the scheme, the device disclosed by the invention has the advantage of realizing the aim of randomly controlling the yield of ammonia gas according to the amount of required ammonia and achieving high response speed in the urea-hydrolysis ammonia preparation.

This invention relates in general to a device for isolating, controlling, limiting and supporting the power exported from the renewable energy source to the utility grid. The device comprising: a means for monitoring the direction of flow of power within the renewable energy source; a means for isolating the flow of power from the renewable energy source to the mains power supply, and wherein when a reverse power flow above agreed feed in or at least zero feed in or limited feed in is sensed by the means for monitoring between the renewable energy source to the mains power supply, the monitoring means signals the isolating means to open circuit the system and/or control/limit output of the system.

The invention discloses a novel wall breaking machine, which comprises a motor and a plastic cup. The motor is installed in a base, an upper cover is arranged on the upper side of the motor, and a touch screen switch is arranged on the front side of the upper cover. The touch screen switch controls the motor, and the motor is connected to Mushroom head sensor, the mushroom head sensor is installed in the center of the coaster, and the coaster is installed on the upper cover; the bottom of the plastic cup is provided with a fixed plate, the middle of the fixed plate is installed with a knife set, the center of the knife set is equipped with a drive shaft, the knife set A deep groove ball bearing is arranged on the lower side of the bottom of the drive shaft, and the transmission shaft passes through the deep groove ball bearing and is fixedly connected with the deep groove ball bearing. The mushroom head sensor is inserted into the bottom of the transmission shaft; the plastic cup is buckled on the coaster. The power of the motor is 30KW. The capacity of the plastic cup is 1.2L. The invention has greater power and can meet the wall-breaking needs of most foods; the use of small-capacity plastic cups avoids waste; effectively solves the problem that the traditional wall-breaking machine cannot be stuck, and has high transmission efficiency.

The invention relates to the field of a metal combining process, in particular to a metal liquid-solid interface thermal extrusion welding method. The metal liquid-solid interface thermal extrusion welding method is characterized by comprising the following steps of embedding at least one metal welding part in a containing cavity matched with the welding part in shape and size, wherein the depth of the cavity body is smaller than the height of the welding part; arranging a pressure source, wherein the pressure source continuously applies pressure to the metal welding parts to tightly fit the welding surfaces of the two welding parts; adopting a heating coil with a magnetism guiding carrying pressing body to heat at least one of the metal welding part, wherein the heating temperature is not smaller than the melting point of the metal welding part with the lower melting point. The metal liquid-solid interface thermal extrusion welding method has the advantages of suitability for the welding of the same or different metal parts, fast welding speed, high welding strength, suitability for welding the combining areas of any size, and capability of welding the metal parts with any complex shape.

The present invention provides novel nitrones, their preparation and use. The novel compounds have the following formula: I The compounds of the present invention have strong antioxidative activity, and are thrombolytic. These compounds can be used to treat and/or prevent diseases caused by overproduction of free radicals and/or formation of thrombus.

The invention discloses a sulfide sodium ion solid electrolyte and a preparation method thereof. A chemical formula of the sulfide sodium ion solid electrolyte is Na4-x-z[Sn1-yMy]NxS4-zXz, wherein M is at least one of Si and Ge, N is at least one of P and Sb, and X is at least one of Cl, Br and I; and x is greater than or equal to 0 and less than or equal to 0.6, and y is greater than or equal to0 and less than or equal to 0.35. A crystal structure of the sulfide sodium ion solid electrolyte is provided with an I41/acd space group; isolated [Sn/M]S4 and [Sn/M/N]S4 tetrahedrons form a framework; and sodium ions fill six non-full crystal positions. When x is equal to 0, the ionic conductivity is greater than 10<-5> S/cm; and when x is greater than 0 and less than or equal to 0.6, the ionicconductivity ranges from 10<-4> S/cm to 10<-3> S/cm. A solid electrolyte material provided by the invention has high ionic conductivity and high air stability; raw materials used in material synthesisare wide in source and relatively low in price; and a certain advantage exists in use cost.

The invention discloses a composition for repairing a skin surface lipid film and a preparation method and application thereof. The composition comprises, by weight percentage, 34-74% of water, 10-20% of mirabilis jalapa extract, 5-15% of anthemis nobilis flower extract, 5-15% of selaginella tamariscina extract, 1-6% of zinc lactate and 5-10% of 1,2-hexanediol. The weight percentage content of the ingredients is 100%. The product does not contain oily ingredients, has a more remarkable effect on sebum repair and is favorable for improvement of the repair effect of the oily ingredients.

A semiconductor module includes a die pad area between positions where a plurality of power terminals are arranged and positions where an HVIC and an LVIC are arranged. A plurality of RC-IGBTs are arranged in the die pad area at positions closer to the plurality of power terminals than to the HVIC and the LVIC.

The invention relates to a bathroom wood-based composite material and a preparation method thereof, and belongs to the technical field of decorative materials. White carbon black and a coloring material are soaked with a composite coupling agent, extremely high activity is shown by utilizing the unique three-dimensional silica structure, small particle size and large specific surface area of the nanometer white carbon black, the adsorbing effect on pigment particles is strong, the surfaces of the pigment particles are tightly wrapped, and shielding effect is formed, so that pigment attenuationcaused by ultraviolet irradiation is greatly reduced, sudden light oxygen degradation of a core layer part is delayed, excessive generation of chromophores is blocked, light oxygen degradation of thematerial is slowed down, obvious dark color change is avoided, the color of the composite material is improved, the requirement of bathroom indoor environment is met, and the composite material is harmonious with the indoor integrated environment.

The invention provides functional-microbe-optimized-fermented spiral black tea and a preparation method therefor. According to the method, 3 kinds of functional microbes, i.e., monascus purpureus CGMCC 3.884, saccharomyces cerevisiae CGMCC 2.1543 and lactobacillus plantarum CGMCC 1.2469 are added in stages, the generation of theaflavin and thearubigin is proper in amount and proper in proportion during conversion of tea pigments from tea polyphenols, excessive generation of theabrown is prevented, and the black tea can be rich in healthy effect ingredients, i.e., lovastatin and gamma-aminobutyric acid, thus, the taste and quality of tea leaves are improved, and the method can be extensively applied to the technical field of tea processing.

The invention belongs to the technical field of treatment of phosphorus-containing sewage and particularly relates to a method for preparing a compound fertilizer by utilizing phosphorus-containing sewage. In the method, sewage residue is obtained by utilizing lime to perform neutralizing treatment on phosphorus-containing sewage. According to the method, by first adding phosphoric acid and then adding nitric acid, calcium containing compounds in the sewage residue are fully converted to generate calcium nitrate and superphosphate; by the matching with quantity and concentration control over phosphoric acid and nitric acid, the content of phosphorus and water soluble phosphate is enhanced effectively, and the compound fertilizer of nitrate fertilizer and phosphorus fertilizer easily absorbed by plants is prepared. The phosphorus pollution is reduced, the loss of phosphorus resources is effectively reduced, and the compound fertilizer produced in the method contains both monocalcium phosphate and calcium nitrate and has the advantages of being low in production cost, simple in process and diversified in product nutrient.

The invention discloses an ES prediction technology-based coal supply chain bullwhip effect suppression method. The method comprises the steps of 1, building a coal demand model; 2, calculating a variance of a coal demand quantity Dt of a t period; 3, determining a demand prediction value defined in the specification in a goods preparation period L; 4, determining a coal order quantity qt; 5, determining a variance Var (qt) of the coal order quantity; 6, obtaining an expression of a coal supply chain bullwhip effect (BE); and 7, adjusting parameters in the expression of the coal supply chain BE and suppressing the BE. The method is novel in design, convenient to realize and good in usage effect, can effectively solve the problem of complex coal supply chain BE, avoids an increase in coal inventory amount and coal inventory cost due to incapability of accurately predicting customer demands, avoids overproduction due to difficulty in making a reasonable production plan, and is high in precision.

The invention discloses a quantitative separation device for iron tailing sand raw materials. The quantitative separation device comprises a shell, a separation cavity, a first motor, a driving roller, a first connecting roller, a screening belt, a second connecting roller, a linkage roller, a movable seat, a shell, a first spring, an end cover, a brake cable, a third connecting roller, a connecting rope, a groove, a sliding block, a first sliding groove, an input funnel, a second spring, a first valve plate, a pulley, a connecting block, a second sliding groove, a guide groove and the like. The quantitative separation device has the advantages of being reasonable and simple in structure, low in production cost, convenient to install and complete in function; a stirring device is arranged,a rotating disc can be driven to rotate through a second motor, and the rotating disc rotates to drive a movable plate and a stirring rod to move left and right through a fixed shaft and a connectinggroove body to stir the raw materials, so that the screening efficiency is improved; and a pulley mechanism is composed of the pulley, the connecting rope and the like, so that the moving range of the first valve plate is enlarged, and the quantitative control range and the control sensitivity are guaranteed.