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57results about How to "Flexible ratio" patented technology

Organic high molecular composite flocculant and preparation method thereof

The invention discloses an organic high molecular composite flocculant which is mainly used for municipally or industrially dewatering sludge and a preparation method thereof, which solve the problems of complex treatment process, agent waste, secondary pollution and the like existing in the prior art. The flocculant comprises polyacrylamide, polydimethyldiallylammonium chloride and modified starch serving as raw materials and the dry weight ratio of polyacrylamide to polydimethyldiallylammonium chloride to modified starch is 4-9:0.5-5:0.5-5, wherein tap water or de-ionized water is used as a dispersing agent; and the liquid organic high molecular composite flocculant, of which the molecular weight is 4,000,000 to 12,000,000, the ionization degree is 40 to 80 percent and the effective content of the raw material is 1 to 5 percent based on dry weight, is prepared by dispersing the materials in a reactor at the temperature of between 10 and 50 DEG C with stirring and compounding for 0.5 to 3 hours. The flocculant has the advantages of sufficient raw material sources, low cost, simple process flow, stable performance and high suspension separation speed, is reasonably prepared and quickly dissolved and is safe to operate, and convenient to use, saves the amount, obviously improves the dehydration efficiency, expands the application range, prevents fluctuation of treatment effect and reduces secondary pollution.
Owner:国能辽宁环保产业集团有限公司材料分公司

Coal mine working face top plate high position directional drill hole group pressure relief gas extraction method

The invention discloses a coal mine working face top plate high position directional drill hole group pressure relief gas extraction method. According to the principle, the coal mine working face topplate high position directional drill hole group pressure relief gas extraction method comprises the steps that before a working face is stoped, by constructing a high position directional drill holegroup along the working surface in an air return way of the working surface, main hole sections of high position directional drill holes are extended in an O-shaped circle fissure zone of a goaf formed after the working face is stoped, and lower position drill holes are appropriately lowered at the position of open-off cut close to the working face, crossing branch holes facing upward are constructed in upper position drill holes, after the working face is mined by adopting the combining extraction of all drill holes, gas guiding of the fissure zone is carried out, and pressure relief and desorption of gas in the fissure zone are carried out. The coal mine working face top plate high position directional drill hole group pressure relief gas extraction method can play a dual role of reducing the gas concentration in the corners of the working surface and in the return current and extracting high-concentration gas in the pressure relief and desorption zone of the goaf, gas control of theworking face is achieved, and the recycling of gas resources is realized.
Owner:XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP

Method for silt soil with ectopic activated magnesium oxide carbonization and solidification

The invention discloses a method for silt soil with ectopic activated magnesium oxide carbonization and solidification, and belongs to the field of hydraulic and civil engineering. The method includesthe steps of a sludge pretreatment, a uniform mixing of a curing agent, a silt granulation, a carbon dioxide carbonization, a waste gas/waste liquid collection, and a resource utilization. The supplyof the curing agent is regulated by actual measure a water content rate, and a diameter of a grain and a carbon dioxide pressure are regulated according to a soil property, so that a full mixing of the silt and the curing agent and the rapid carbonization of magnesium oxide solidified the sludge grains are realized. Dust and carbon dioxide are absorbed during the operation process to avoid secondary pollution. The method is safe, simple, low in carbon, environmental, and high in continuous operation rate, and the problem of sludge treatment and engineering application is solved. The silt carbonized grains have the advantages of low moisture content, high hardness, high shear strength, large friction coefficient and the like. The silt carbonized grains can be used as a filler such as a roadbed, an airport runway and an engineering backfill, and the reclamation of the slit/sludge and the carbon dioxide is realized. The method for the silt soil with the ectopic activated magnesium oxidecarbonization and solidification has great significance of the engineering construction.
Owner:SOUTHEAST UNIV

Double-side laser welding method for powder metallurgy control

The invention discloses a double-side laser welding method for powder metallurgy control, relates to a double-laser beam welding method, and solves the problem that welding wire elements cannot perform full alloy control for a welding line structure in the double-side laser welding process of a T-shaped structure. The method comprises the following steps: (1) a groove is mechanically milled in the center of a position to be welded on the upper surface of a cover in the welding direction; and the cover is chemically cleaned to remove an oxide film and machining stains; (2) alloy powder is prefilled in the groove to form a deposition layer; a laser cladding head is vertically placed rightly above the groove; the laser powder feeding material adding is performed on the surface of the groove to obtain the deposition layer by using a mode of coaxial feeding of laser beams and the alloy powder; and a deposition material higher than the surface of the cover is grinded off by using a grinding machine, so that a deposition surface is coplanar with the surface of the cover; and (3) the double-laser wire filling welding is performed for a long purlin and the cover to obtain symmetric welding lines on two sides. The method is used for double-laser beam welding of the T-shaped structure.
Owner:HARBIN INST OF TECH

3D additive-manufacturing bilateral laser welding method for T-shaped structure

The invention provides a 3D additive-manufacturing bilateral laser welding method for a T-shaped structure, relates to a double-laser-beam welding method, and aims to solve the problems that under the conditions of high welding speed and long weld beads, in a bilateral laser welding process of a T-shaped structure, the circumstance that welding wires are continuously and stably fed into a molten pool at constant speed and even, coherent and non-defective bilateral weld joints are obtained by one-time welding is difficult to ensure, and alloy of weld microstructures is difficult to regulate and control specifically and flexibly. The method comprises the following steps: 1, chemically cleaning the surface of a stringer; 2, designing of a sedimentary layer: designing the sedimentary layer in a region to be welded on the surface of the stringer, wherein the cross section of the sedimentary layer is square or rectangular; 3, vertically placing a laser cladding head at a position right above the region to be welded on the surface of the stringer, carrying out laser 3D additive-manufacturing on regions to be welded on two sides of the stringer to obtain the sedimentary layer in a mode of coaxially feeding laser beams and alloy powder; and 4, carrying out bilateral laser welding on the stringer and an envelope to obtain bilateral symmetric weld joints. The 3D additive-manufacturing bilateral laser welding method for the T-shaped structure is used for double-laser welding of the T-shaped structure.
Owner:HARBIN INST OF TECH

Real-time business risk control system and method based on rule engine

The invention provides a real-time business risk control system and method based on a rule engine, which are applied to at least one risk control scene, and the system comprises a configuration layerwhich is used for setting a strategy rule table for each risk control scene, and the strategy rule table comprises at least one strategy rule group; the rule engine is used for carrying out feature extraction on the accessed risk control basic data to obtain extracted features, determining a risk control scene according to the extracted features, and determining feature conditions in a strategy rule group conforming to the extracted features in a strategy rule table corresponding to the risk control scene, and also used for determining an optimal gradient according to a preset strategy combination mode and the feature attributes corresponding to all the feature conditions meeting the extracted features; the system also comprises an action engine which executes an execution action corresponding to the optimal gradient. The invention has the advantages that risk control hit decisions are made for multiple risk control scenes, and multi-strategy, multi-action and multi-gradient optimal gradients under a single risk control scene are effectively selected.
Owner:TIANGU INFORMATION SCI TECH HANGZHOU

Half-decoupling type graded dehumidifying and cooling dehumidifying heat pump system and method

The invention provides a half-decoupling type graded dehumidifying and cooling dehumidifying heat pump system comprising a refrigerant system and an air system. The refrigerant system comprises two compressors and four dehumidification heat exchangers, two four-way reversing valves, an evaporator, two throttling devices and two three-way reversing valves. The air system comprises two draught fans,eight air valves and two air openings. According to the half-decoupling type graded dehumidifying and cooling dehumidifying heat pump system, the dehumidification heat exchangers at different operation pressures are connected in parallel, the evaporation side at the low pressure grade is connected with a dehumidification evaporator and the evaporator in series. A high-pressure dehumidification evaporator adopts a drying agent with a uniform adsorption speed to achieve heat and humidity load pretreatment, condensation of the high-pressure dehumidification evaporator is prevented through a highevaporator temperature, and meanwhile the dew point of air entering the low-pressure dehumidification evaporator is lowered; the low-pressure dehumidification evaporator adopts a drying agent with high adsorption capacity to achieve heat and humidity load efficient treatment, and the switch time of circulations is prolonged. The evaporator connected with the low-pressure side in series can solvethe problem that the heat and humidity load processing capacities of the system are inconsistent.
Owner:SHANGHAI JIAO TONG UNIV

Clay foam composite system and method and device for applying clay foam composite system to oil-water well

The invention relates to a clay foam composite system and a method and device for applying the clay foam composite system to an oil-water well. The clay foam composite system disclosed by the invention is prepared through uniformly mixing slurry and gas, wherein the slurry is prepared from the following ingredients: (1) sodium bentonite; (2) oil-well cement; (3) a dispersant: NaOH; (4) a foamer: sodium lauryl sulfate; (5) a stabilizer: 1) silicone amide; and 2) sodium silicate; and (6) the balance of fresh water; and the gas is nitrogen gas with the purity of not lower than 95%, the gas and the slurry are proportioned by volume, strata pressure is taken into account, and the underground gas/slurry ratio is (2: 1) to (1: 1). The clay foam composite system, the method and the device have the beneficial effects that a plugging mechanism of the composite system disclosed by the invention mainly comprises two parts, i.e., solid-phase filler plugging and gas-phase Jamin-effect plugging and has adjustable fluidity and permeability; due to solid particles, the strength of a liquid film can be enhanced; and meanwhile, an aqueous solution of the foamer in the system can be used for changing the wettability of rocks of strata on one hand and can also be used for reducing the viscosity of thick oil on the other hand, so that the fluidity of fluid of the strata is improved, and thus, the actions of reducing viscosity and helping displacement are achieved.
Owner:SHENGLI OILFIELD PETROLEUM DEV CENT +1

Carbonization repair method of volatile organic compound-heavy metal compound polluted soil

The invention discloses a carbonization repair method of volatile organic compound-heavy metal compound polluted soil, and belongs to the field of polluted soil repair. The method comprises the stepsof compound polluted soil pretreatment, organic pollutant separation and extraction, curing agent mixing, granulation of polluted soil uniform mixtures, carbonization of polluted soil uniform mixed granules, storage and maintenance of carbonized polluted soil particles, waste liquid/waste gas collection, waste heat utilization and resource utilization. The heating time, the curing agent mixing quantity and the carbonization time are adjusted by actually measuring the organic matter components and concentrations of the compound polluted soil, heavy metal components and contents, temperature andthe water content, and therefore the optimal work efficiency is achieved. In the working process, volatile organic pollutants are extracted, and dust, waste gas and carbonized heavy metal are absorbed. The method is safe, rapid, low-carbon, environment-friendly and high in continuous working rate, produced carbonized polluted soil particles are high in hardness and strength and low in leaching efficiency and can be used as roadbeds, airfield runways, engineering backfill and the like, and great engineering construction significance is achieved.
Owner:NANJING FORESTRY UNIV

Flight control system special for plant protection unmanned aerial vehicle

The invention relates to the technical field of unmanned aerial vehicles, and particularly relates to a flight control system special for a plant protection unmanned aerial vehicle. The system comprises a standardized large block, a power supply system, a communication system, a spraying system, the flight control system, a power system, a dispensing system, an image acquisition module, an image processing analysis module and a central processing module. The image acquisition module acquires original image data of a plant protection object; the original image data is fed back to the image processing and analyzing module; the image processing and analyzing module is used for processing and analyzing the original image data; and the image processing and analyzing module feeds back reagent ratio information suitable for an actual situation of the plant protection object to the central processing module, the central processing module makes the dispensing system carry out agent preparation,and agent spraying operation is completed through the spraying system. The system is simple in structure, durable in endurance, flexible in operation and good in practicability, and can be used for preparing a matched agent according to the actual condition of the plant protection object of the standardized large block.
Owner:海南耐威科技系统技术研究院有限公司

Automatic production system for brewing of liquor

The invention discloses an automatic production system for brewing of liquor. The automatic brewing system is composed of a batching unit, an intelligent travelling crane, an integral mixing unit, anautomatic rice steamer charging unit, a distillation unit and an airing unit. According to the invention, mechanical automation of the whole liquor brewing process is realized, the influence of artificial factors is eliminated, and the quality consistency of liquor is guaranteed; all the constituent equipment of the system is simple to install and debug, so the production cost for automatic liquorbrewage is lowered, and the installation period of the liquor brewage production system is shortened; the intelligent travelling crane is utilized as a main transfer body for the automatic brewing system, so the complexity of the automatic brewing system is greatly reduced, and the operation and maintenance cost of the automatic brewing system is lowered; and a vinasse hopper separately receivesvinasse, grains and bran in virtue of a vinasse hopper shifting machine, and the vinasse, grains and bran are concentratedly proportioned and enter the vinasse hopper in one shot, so material proportions are guaranteed, the proportioning of the vinasse, grains and bran is flexible, requirements for different process proportioning parameters can be met, and the system has good compatibility.
Owner:LUZHOU ZHITONG AUTOMATION EQUIP CO LTD

A 3D additive T-shaped structure double-sided laser welding method

The invention provides a 3D additive-manufacturing bilateral laser welding method for a T-shaped structure, relates to a double-laser-beam welding method, and aims to solve the problems that under the conditions of high welding speed and long weld beads, in a bilateral laser welding process of a T-shaped structure, the circumstance that welding wires are continuously and stably fed into a molten pool at constant speed and even, coherent and non-defective bilateral weld joints are obtained by one-time welding is difficult to ensure, and alloy of weld microstructures is difficult to regulate and control specifically and flexibly. The method comprises the following steps: 1, chemically cleaning the surface of a stringer; 2, designing of a sedimentary layer: designing the sedimentary layer in a region to be welded on the surface of the stringer, wherein the cross section of the sedimentary layer is square or rectangular; 3, vertically placing a laser cladding head at a position right above the region to be welded on the surface of the stringer, carrying out laser 3D additive-manufacturing on regions to be welded on two sides of the stringer to obtain the sedimentary layer in a mode of coaxially feeding laser beams and alloy powder; and 4, carrying out bilateral laser welding on the stringer and an envelope to obtain bilateral symmetric weld joints. The 3D additive-manufacturing bilateral laser welding method for the T-shaped structure is used for double-laser welding of the T-shaped structure.
Owner:HARBIN INST OF TECH

A double-sided laser welding method controlled by powder metallurgy

The invention discloses a double-side laser welding method for powder metallurgy control, relates to a double-laser beam welding method, and solves the problem that welding wire elements cannot perform full alloy control for a welding line structure in the double-side laser welding process of a T-shaped structure. The method comprises the following steps: (1) a groove is mechanically milled in the center of a position to be welded on the upper surface of a cover in the welding direction; and the cover is chemically cleaned to remove an oxide film and machining stains; (2) alloy powder is prefilled in the groove to form a deposition layer; a laser cladding head is vertically placed rightly above the groove; the laser powder feeding material adding is performed on the surface of the groove to obtain the deposition layer by using a mode of coaxial feeding of laser beams and the alloy powder; and a deposition material higher than the surface of the cover is grinded off by using a grinding machine, so that a deposition surface is coplanar with the surface of the cover; and (3) the double-laser wire filling welding is performed for a long purlin and the cover to obtain symmetric welding lines on two sides. The method is used for double-laser beam welding of the T-shaped structure.
Owner:HARBIN INST OF TECH

Atomized liquid storage device

The invention relates to an atomized liquid storage device. The device comprises a main housing and a mixing cover. The main housing comprises a main containing cavity and an auxiliary containing cavity which are communicated with each other, the main containing cavity is used for containing atomized liquid, and the auxiliary containing cavity is used for containing a unit to be blended; and the mixing cover is detachably connected to the main housing in a matched manner, and the mixing cover is provided with a crushing piece. When the mixing cover is connected to the main housing in the matched manner, the crushing piece stretches into the auxiliary containing cavity so as to crush the unit to be blended. According to the atomized liquid storage device, a user can select different units to be blended to be placed in the auxiliary containing cavity, when the mixing cover is connected to the main housing in the matched manner, the crushing piece on the mixing cover stretches into the auxiliary containing cavity to crush the units to be blended, and the crushed units to be blended release materials to be blended into the main containing cavity to be mixed with atomized liquid, so that different materials are flexibly proportioned to adjust the components of the atomized liquid, and different requirements of users are met.
Owner:镁乐生物科技(深圳)有限公司
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