23results about How to "Environmentally friendly operation" patented technology

The invention relates to a heating furnace, in particular to a biomass fuel furnace capable of automatically removing slag, which comprises a combustion chamber, an upper auger, a lower auger and a feed hopper. The automatic slag removing device is characterized in that a slag falling opening is formed in the bottom of the combustion chamber, a slag discharging plate is arranged below the combustion chamber, and a cylindrical cam is arranged between the first motor and the auger and controls the slag discharging plate to reciprocate so as to automatically remove slag. Compared with the prior art, automatic slag removal is achieved, and fire can be prevented from spreading reversely.

The invention belongs to the technical field of fiber size measurement, and particularly relates to a method for measuring the length of fibers in a fiber reinforced thermoplastic composite material. Mixing and diluting the fiber reinforced thermoplastic composite material and thermoplastic resin to obtain a diluted material, pressing the diluted material to obtain a test sample strip, cutting the test sample strip into a sample wafer, and measuring the length of the fiber in the sample wafer under an optical microscope; wherein the fiber reinforced thermoplastic composite material is prepared from matrix resin and reinforced fibers, and the matrix resin is the same as thermoplastic resin. According to the invention, the problems of poor measurement result accuracy and reproducibility and low measurement efficiency of the existing fiber length measurement method for the fiber reinforced thermoplastic composite material are solved.

The invention discloses a method for preparing hydrophilic carbon fiber, belonging to the technical field of carbon fiber materials. Glycidyl methacrylate and methyl methacrylate ethyl sulfobetaine are copolymerized by free radical polymerization to prepare a controllable amphiphilic copolymer; the amphiphilic copolymer is blended with dopamine, and a ternary system polymer is prepared by reacting an epoxy group with an amino group. Under alkaline solution conditions, the adhesion of dopamine after self-polymerization is utilized to introduce hydrophilic zwitterionic groups to the fiber surface to achieve sizing function, and to give the carbon fiber surface hydrophilic properties, so that it has better fiber opening in water, and achieves the effect of complete dispersion under aqueous conditions. The preparation method can ensure the strength of carbon paper while improving the dispersibility of carbon fiber, has important application prospects, and has a simple process and can meet the needs of large-scale industrialization.

The utility model relates to the technical field of water conservancy projects, in particular to an ecological water conservancy slope protection device of a water conservancy project, which comprises a side slope, a slope protection component is arranged on the slope surface of the side slope, a control component is arranged on one side of the slope protection component, and a trigger component is arranged at the top of the slope protection component. An opening and closing assembly is arranged on one side of the triggering assembly; the slope protection assembly comprises a slope protection frame, and the slope protection frame is fixedly connected to the slope surface of the side slope. According to the ecological water conservancy slope protection device for the water conservancy project, rainwater is collected through the storage box during rainfall, a movable piece at the bottom of the storage box is triggered through a gear, a movable rod, a rack and a trigger rod in hot seasons, the stored rainwater is drained through a drainage pipe, and vegetation on a slope is irrigated; therefore, the processes of water injection before irrigation and pressurization during irrigation of the watering cart are reduced, and the utilization rate of water resources and the labor efficiency are improved.

The invention relates to the technical field of desulfurization of coal-fired power generating units, in particular to a thermal power generating unit SO2 emission automatic control system based on historical operation data, which comprises a detection subsystem, a prediction control subsystem, a historical data analysis subsystem, a correction subsystem, a main control subsystem and a driving subsystem, historical data are classified and screened by adopting the historical data analysis subsystem, so that classification of operation combinations of slurry circulating pumps can be determined, optimal combination operation of the slurry circulating pump set can be realized by adopting a clustering algorithm, and the SO2 content is predicted in advance by adopting the prediction control subsystem. The PH value of the desulfurization absorption tower is accurately controlled through the control subsystem, the flue gas flow is corrected through the correction subsystem, distortion of test point data due to temperature influence can be avoided, and automatic, efficient, safe, environment-friendly and stable operation of the desulfurization system is achieved through accurate control of the PH value of the desulfurization absorption tower and optimal combination of the slurry circulating pump set.

The utility model discloses a kind of gas tank dry gas desulfurization systems.The system includes: low temperature absorption tower, in which raw material gas tank dry gas and low temperature absorption oil countercurrent contact;Primary amine liquid absorption tower, in which utilize amine liquid to remove hydrogen sulfide in dry gas after organic sulfur is removed;Hydrolysis reactor, in which carbonyl sulfur in primary absorption tail gas is hydrolyzed, and hydrolysis tail gas is obtained;Secondary amine liquid absorption tower, in which utilize lean amine liquid to remove hydrogen sulfide in hydrolysis tail gas, and after absorption, purified dry gas is obtained.The desulfurization system of the utility model can purify and remove organic sulfide and hydrogen sulfide in dry gas, reduce sulfur content in gas, and then reduce SO2 content in flue gas discharged from heating furnace of subsequent each device, ensure that heating furnace of whole plant is safe, environmental protection, high efficiency and stable operation.

The utility model discloses a low bath ratio high temperature high pressure dyeing machine relates to dyeing machine technical field, the utility model discloses a dyeing cylinder body and set up at the bottom end of dyeing cylinder body's chassis and set up between the both sides of dyeing cylinder body top cloth guide pipe still include: heat shield, set up at the outside of dyeing cylinder body, the utility model discloses through heat shield blocks the heat and spreads outward through cylinder body outer wall, avoids a large amount of heat energy waste, and still can avoid workshop temperature rise, guarantees the work efficiency and safety of staff, and in through heat exchange coil absorbs the heat that cylinder spreads outward and is blocked by heat shield, through heat conduction filler can ensure that heat shield and dyeing cylinder body between heat distribution is even, avoids the position temperature difference of being close to and being far from heat exchange coil too big influence structural strength to further safe and effective utilization dyeing machine work when the heat that cylinder loses, improves energy utilization, makes equipment run more environmental protection.

The invention relates to an efficient light and superfine powder mixing and stirring device and method.The efficient light and superfine powder mixing and stirring device is characterized in that a guide cylinder, a first stirring device and a second stirring device are arranged in a lower tank body of a mixing tank, an outer shaft and an inner shaft located in the outer shaft are vertically and rotationally installed on the guide cylinder, and the outer shaft and the inner shaft penetrate through the bottom of the mixing tank; the first stirring device is fixedly connected with an inner shaft at the lower end of the guide cylinder, the second stirring device is fixedly connected with an outer shaft of the guide cylinder and installed at the lower end of the first stirring device, the first stirring device is driven by an outer shaft driving device to rotate and stir materials to move, and the second stirring device is driven by an inner shaft driving device to rotate and stir materials to move. The light superfine powder mixing device has the advantages that the mixing efficiency of light superfine powder materials is improved through the first stirring device, the second stirring device and the scraping device, the first stirring device can strongly suspend and stir the materials, the first stirring device, the second stirring device and the scraping plate are all driven by the variable frequency motor, the mixing time is shortened, and the mixing efficiency is improved.

The invention relates to the technical field of photovoltaic, in particular to a strong wind resistant photovoltaic support for a large photovoltaic power station, and solves the problems that the photovoltaic support in the prior art is single in function and cannot be adjusted according to the wind direction, so that the wind resistance borne by a photovoltaic panel is large, and the overall stability of the photovoltaic support is affected. A strong wind resistant photovoltaic support for a large photovoltaic power station comprises a base, a bearing plate is arranged at the top of the base, a photovoltaic panel is fixedly connected to the top of the bearing plate, an annular plate is fixedly connected to the top of the base, the side wall of the bearing plate is slidably connected with the annular plate, and the bearing plate is located on the inner side of the annular plate. And one side of the bottom of the base is fixedly connected with a driving motor through bolts. The problem that a traditional photovoltaic support is insufficient in stability under the severe wind condition is effectively solved, the safety and reliability of a photovoltaic system are improved, and an important contribution is made to environment-friendly, efficient and stable operation of a large photovoltaic power station.

This invention belongs to the technical field of mine support materials and preparation processes, specifically involving a composite inorganic sprayed slurry made from gasified slag and a preparation process for low-resilience, high-strength mine support. The sprayed slurry is a pure inorganic component, composed of activated gasified slag, ordinary silicate cement, auxiliary cementitious admixtures, and functional additives in specific mass proportions. The activated gasified slag undergoes alkali activation or thermal activation treatment, without using saline wastewater. The preparation process includes gasified slag pretreatment and activation, dry powder premixing, slurry preparation, high-pressure spraying support, and natural curing. This invention achieves high-volume utilization of gasified slag, solving problems such as saline wastewater activation, the presence of organic components in the sprayed slurry, and insufficient resilience and strength in existing technologies. It is suitable for various types of mine roadway support.

The utility model relates to the technical field of battery liquid injection, in particular to a liquid injection device for a lead-acid storage battery. Comprising a to-be-injected battery, a flat plate and an injection pipe, the battery to be injected is fixed on the flat plate; the liquid injection pipe is arranged above the flat plate and is used for injecting liquid into a to-be-injected battery fixed on the flat plate, a liquid injection adjusting assembly is arranged at a liquid outlet of the liquid injection pipe, the liquid injection adjusting assembly is in butt joint with a liquid injection opening of the to-be-injected battery, and a cavity used for extracting electrolyte overflowing out of the liquid injection opening of the to-be-injected battery is formed in the liquid injection adjusting assembly. The device is simple in structure, electrolyte overflowing out of the electrolyte injection opening can be sucked in time, and the safety of manual battery electrolyte injection is improved.

The invention discloses a chromium ion doped phosphate photoluminescent material as well as a preparation method and application thereof. The invention aims to provide a novel chromium ion doped phosphate photoluminescent material, the chemical structural formula is CaHf (4-x) (PO4) 6: xCr < 3 + >, and x is more than 0 and less than or equal to 0.09; the chromium ion doped phosphate photoluminescent material can generate long-wavelength and broadband near-infrared emission under the excitation of blue light, can cover a C-H bond absorption band (908nm) and an O-H bond absorption band (980nm), and is used for judging the moisture content in an organic solvent, so that the moisture content in the organic solvent can be judged quickly, non-contact and losslessly; the preparation method comprises the following steps: mixing a calcium-containing compound, a hafnium-containing compound, ammonium dihydrogen phosphate and a chromium-containing compound, roasting in an air atmosphere at 1150-1350 DEG C for 4-6 hours, naturally cooling the roasted product, and grinding to obtain the chromium ion doped phosphate photoluminescent material. The preparation method is simple to operate and environment-friendly, so that the chromium ion doped phosphate photoluminescent material is easy to prepare on a large scale; belongs to the technical field of inorganic photoluminescent materials.

The invention belongs to the technical field of traditional Chinese medicine extraction and separation, and particularly relates to a piperidine alkaloid compound extracted, separated and identified from purslane and an extraction and separation method of the piperidine alkaloid compound. The molecular formula of the novel alkaloid compound is C10H14N6O3, and the chemical name of the novel alkaloid compound is 2-(6-amino-9H-purin-9-yl) piperidine-3, 4, 5-triol. The invention further provides an extraction and separation method of the novel alkaloid compound. The extraction and separation method sequentially adopts water decoction extraction, macroporous resin column chromatography, ODS column chromatography, Sephadex LH-20 chromatography and a high performance liquid chromatograph for separation, purification and preparation. The structure of the alkaloid compound is determined as a novel alkaloid compound by mass spectrum, hydrogen spectrum, carbon spectrum and two-dimensional nuclear magnetic spectrum analysis methods. The novel alkaloid compound has anti-inflammatory activity, anti-cholinesterase activity and anti-oxidation activity. The novel alkaloid compound and the salt or derivative thereof can be used as raw materials for drug development and pharmacological activity research.

The invention relates to the technical field of thermosyphon pumps, in particular to a thermosyphon pump suitable for double-end mechanical sealing of a butadiene centrifugal pump, which comprises a pump body, an input pipe is fixedly arranged on one side of the pump body, an output pipe is fixedly arranged at the other end of the pump body, and an isolation cover is fixedly connected to the outer wall of the output pipe. The spiral preheating pipe is arranged on the outer side of the output pipe of the thermosyphon pump, the high-temperature fluid is used for preheating the low-temperature fluid, the high-temperature fluid is used for preheating the low-temperature fluid, the high-temperature fluid is used for preheating the low-temperature fluid, and the low-temperature fluid is used for preheating the low-temperature fluid. Waste heat can be effectively recycled, energy efficiency is improved, energy loss is reduced, the heat treatment process of the system is optimized, the heating efficiency of the thermosyphon pump can be improved, the service life of equipment is prolonged, energy conservation and emission reduction can be facilitated, and finally more efficient and more environment-friendly system operation is achieved. The pump is safer, more efficient and more stable in the conveying process of fluid which is high in temperature, easy to polymerize and easy to leak.

The invention relates to a method for operating an internal combustion engine (10) provided as a medium speed gas engine or a dual fuel engine in a gaseous fuel mode. The method comprises the steps of: injecting gaseous fuel directly into a combustion chamber (14) of the engine at a maximum injection pressure which is lower than the compression end pressure of the engine (10).

The invention relates to a low-nitrogen pulverized coal burner suitable for ultra-low load and a burning method, and belongs to the technical field of pulverized coal furnace burning. The pulverized coal burner is provided with a pulverized coal channel and a rich-lean separation device, the rich-lean separation device is composed of multiple stages of separation baffles, and all the stages of separation baffles are sequentially arranged in the axial direction of the pulverized coal channel. The pulverized coal channel is divided into a first-stage concentrated phase channel and a first-stage light phase channel through a first-stage separation baffle; the first-stage concentrated phase channel is divided into a second-stage concentrated phase channel and a second-stage light phase channel through a second-stage separation baffle; the (n-1) th-stage concentrated phase channel is divided into an n-stage concentrated phase channel and an n-stage light phase channel through an n-stage separation baffle; and a hydrogen swirl nozzle and an igniter are arranged in the n-stage concentrated phase channel. The method can be applied to the scene of deep peak regulation of the coal-fired boiler, the problem of heat efficiency reduction caused by ultralow-load operation is comprehensively considered and solved, and safe, efficient and environment-friendly operation of the pulverized coal boiler under the ultralow-load working condition is achieved.

The invention discloses a cobalt-doped sodium vanadium oxyfluoride phosphate positive electrode material and a preparation method and application thereof, the chemical formula of the positive electrode material is Na3V (2-x) MxO2 (PO4) 2F, M is Co, and the value range of x is 0.001-0.1. According to the cobalt-doped sodium vanadium oxyfluoride phosphate material provided by the invention, a proper amount of cobalt is used for replacing part of vanadium in situ, so that the electronic conductivity and the ion diffusion kinetics are improved, the rate capability of the material is remarkably improved, and the cycle life of the material is remarkably prolonged. Besides, according to the preparation method, room-temperature water-phase synthesis is adopted from the raw materials to the finished product, the production efficiency is high, the equipment requirement is low, operation is easy, environment friendliness is achieved, and compared with a high-temperature solid-phase method, a sol-gel method and other synthesis methods, the electrochemical performance of the material can be improved, and meanwhile the method is suitable for large-scale production.

The invention relates to the field of potassium persulfate synthesis, in particular to low-nitrogen high-purity potassium persulfate and a synthesis method thereof. According to the synthesis method of the potassium persulfate, heating and heat preservation are carried out in the synthesis process, after the reaction is finished, the potassium persulfate is cooled to a certain temperature, then the potassium persulfate is rapidly placed in a low-temperature environment to be subjected to a low-temperature crystallization technology, potassium persulfate crystals are obtained, and low-nitrogen and high-purity potassium persulfate can be obtained through subsequent cleaning, centrifugal drying. According to the method, separation of nitrogen-containing impurities and potassium persulfate can be effectively promoted by combining heat-preservation stirring with a freezing crystallization technology, the crystallization time is shortened, and the product has higher crystallinity, so that the production efficiency and the product quality are improved.

The invention discloses an automatic batching method based on multi-bin solid waste materials and related equipment, and relates to the field of iron and steel industry. The method comprises the following steps: firstly, setting a target range of one or more key material components, and obtaining the component content and the initial mass feeding rate of the current associated solid waste material of each bin; then, for each material component with the set target range, according to the initial set amount corresponding to each solid waste bin and the component content of the material component in each solid waste bin, calculating a weighted average value corresponding to the material component; and if any weighted average deviates from the corresponding target range, automatically triggering the ratio optimization model to solve, and dynamically adjusting the feeding rate of each bin. According to the method, a traditional extensive mode depending on artificial experience or fixed proportioning is abandoned, and the proportioning precision and the component stability are remarkably improved.

The utility model provides a kind of mixed phase ice crystal particle ground generation and icing experimental device, water droplet particle group is generated by water nozzle, ice crystal particle group is generated by ice crystal particle generation device, controllable proportion mixing is ice-water mixed phase, namely mixed phase icing experiment can be realized.The experimental device includes air duct system, water droplet atomization generation system, ice crystal particle generation system, impact surface system and measurement system;Air duct system includes axial flow fan, air duct and experimental cavity;Impact surface system includes impact surface assembly, water droplet atomization generation system and ice crystal particle generation system are respectively used to provide water droplet and ice crystal, axial flow fan provides high-speed airflow, water droplet and ice crystal are transported via air duct to high-speed impact impact surface assembly, and the impact of mixed phase is realized icing experiment;Measurement system is used to measure wind speed, temperature, humidity in air duct, and measure ice layer thickness, temperature to impact surface assembly.

The invention discloses a CsPbX3 perovskite nanocrystal and a preparation method thereof, wherein the preparation method comprises the following steps: S1: preparing a cesium salt precursor solution and a lead salt precursor solution; S2: mixing the cesium salt precursor solution and the lead salt precursor solution with an organic halogenated hydrocarbon and an organic ligand I, and stirring them evenly to obtain a ternary salt precursor solution; S3: irradiating the ternary salt precursor solution under γ-ray radiation under stirring conditions to obtain a coarse dispersion of perovskite nanocrystals; S4: purifying the coarse dispersion of perovskite nanocrystals to obtain the CsPbX3 perovskite nanocrystal, wherein X is at least one of Cl, Br, and I. The preparation method of the invention can prepare CsPbX3 perovskite nanocrystals with adjustable and uniform size, single morphology, good dispersibility, and good crystallinity. The prepared CsPbX3 perovskite nanocrystals have good stability and nearly 100% fluorescence quantum efficiency, and can be applied to the field of LED and solar cell devices.

The invention discloses an oxygen barrier coating, a preparation method thereof, a packaging material and a package, and belongs to the technical field of food packaging. The preparation method of the oxygen barrier coating comprises the steps that multiple layers of coating are carried out on the surface of a base material at the same time, drying is carried out while coating is carried out, the oxygen barrier component in coating slurry used for coating each layer is PVA, and the number of coating layers is at least two. The preparation method is easy, convenient and environment-friendly to operate, multi-layer coating and drying are carried out on the surface of the base material at the same time by adopting the coating slurry with PVA as an oxygen barrier component, on one hand, the coating can have good uniformity, and on the other hand, the coating can have high binding force. In addition, compared with an existing EVOH co-extrusion mode, the PVA coating mode has the advantages that the cost is reduced, and meanwhile, the oxygen resistance and the tensile resistance of the coating are improved.

The present invention discloses a shape memory glucose-based aerogel and a preparation method and application thereof, and belongs to the technical field of starch deep processing. The present invention discloses a method for preparing a shape memory glucose-based aerogel, wherein the method uses dextran particles as a substrate, and with the assistance of donor molecules, utilizes biological enzymatic catalysis and in-situ dehydration technology to obtain the shape memory glucose-based aerogel. The method has the characteristics of green and controllable reaction, efficient and simple operation, and green and environmentally friendly products. The obtained aerogel has the properties of being porous, ultra-low density, and having a high swelling water content, and can be widely used in the fields of delivery and controlled release of active substance carriers, food packaging, and biomedical materials.