35results about How to "Alleviate supply tension" patented technology

The invention relates to a preparation method of an inorganic composite white pigment with high covering power. The method comprises the steps of: taking titanium white powder and white mineral powder or composite white mineral powder as raw materials; taking a wet ultrafine stirring grinder or a sand miller as a compound device; performing segmented wet ultrafine grinding and compounding to the titanium white powder and the white mineral powder by adding a certain quantity of pH adjusting agent and dispersing agent; and drying and mechanically dispersing and depolymerizing size after ultrafine grinding and compounding to prepare the inorganic composite white pigment which can be used by replacing the titanium white powder, wherein the performance indexes such as the granularity, the whiteness and the covering power, and the like, of the inorganic composite white pigment are as the same as or similar with the granularity, the whiteness and the covering power of the titanium white powder. The method has simple preparation technology, lower preparation cost and cleaning preparation process.

The invention discloses autoclaved aerated concrete and a preparation method thereof. The calcium material comprises 4-8% of cement, 10-14% of quick lime, 2-3% of desulphurized gypsum, and 5-8% of acetylene sludge, the silicone material comprises 15-20% of red mud, 30-40% of desulfurized coal ash, and 15-25% of common coal ash, the dry materials also comprise 0.065-0.07% of aluminum powder, and the weight ratio of the water to the dry materials is 0.54-0.58. At room temperature, the dry materials are mixed and then are added with water and mixed uniformly, and the preparation of the autoclaved aerated concrete costs 5.5 hours at constant temperature and constant pressure of 1.1MPa. The autoclaved aerated concrete mainly comprises wastes like acetylene sludge, desulphurized coal ash and so on, thereby being beneficial to solving environment pollution caused by stacking of the acetylene sludge and desulphurized coal ash, and opening up a new way for recycling of the acetylene sludge and desulphurized coal ash.

A process for preparing fibers from used and rejected wood includes such steps as transverse cutting to become strip units, collecting impurities, longitudinal cutting to become wood sheets, removing impurities, mixing with the wood sheets made of fresh wood and hot grinding to obtain fibers.

The invention discloses an online detection method and device for a low-voltage current mutual inductor. The method comprises the following steps: acquiring a surface image of the low-voltage current mutual inductor; carrying out Gaussian denoising and smoothening on the image; carrying out image segmentation to separate a to-be-detected target from the background, and carrying out binaryzation on the image; carrying out framework extraction to extract a framework of the binarized image in a target region; analyzing the image of the framework, marking current mutual inductors accordant with the crack character, extracting the framework of the binarized target region by virtue of medial axis transformation when the framework is extracted so as to enable the framework which is subjected to the medial axis transformation to be formed by single pixel points. The device can be applied to online detection on the production line, so that the production efficiency is effectively improved, and the labor cost is lowered.

The invention provides a hydroconversion method of deep cut anthracene oil. The method comprises the following steps of: fractionating deep cut anthracene oil into a light fraction and a heavy fraction, then separating the light fraction after hydrofining, refining the liquid phase which is obtained during the separating process to generate an oil, infusing the oil and the heavy fraction into the hydroconversion region and then separating the heavy fraction from the oil which is generated during the hydroconversion process, wherein the first fraction which is light is entered into the hydrocracking region, and the cracked product which is obtained during the hydrocracking process is infused into the fractionation system to obtain gasoline and diesel fractions. The hydroconversion method of deep cut anthracene oil provided by the invention has the advantages that the deep cut anthracene oil is inversed into light fuel oil by means of hydroconversion, an application way with high additional value is provided to coal tar, the operation of the device is stable by optimizing the process, and the running period of the device is long.

The invention discloses a method for preparing aggregates with the high apparent density through industrial waste residues. The method comprises the steps that 10-50% of waste incineration ash, 1-40% of chromium slag, 1-40% of nickel slag, 1-50% of lead slag, 10-60% of clay and other industrial waste residue soil are uniformly mixed and ground into powder, water is added for stirring to be uniform, and the aggregates with the high apparent density are obtained through burning by means of the technologies such as extrusion pelletization, drying, calcination and cooling; resource utilization of industrial waste residues is achieved, the scientific and effective way is provided, and the obtained aggregates with the high apparent density can be used for preparing concrete.

The invention relates to a method for preparing diesel from coal tar serving as a raw material, which mainly comprises the following steps of: successively carrying out filtration to remove impurities, stationary dehydration, secondary dehydration, effluent fraction and hydrofining on the coal tar so as to obtain diesel components; and then adding diesel additive components into the diesel components, and mixing the components so as to obtain the diesel, wherein the diesel additive components comprise hexadecane number improvers, low temperature flow improvers, flame accelerators and cosolvents. The method has the advantages of rich raw material sources, high process universality, simple operation, mild reaction conditions, low energy consumption, good separation effect and no environmental pollution; and meanwhile, the blending diesel produced by the method has the advantages of high hexadecane number, high combustion performance, proper viscosity, high safety performance, and the like, therefore, the method has good market application prospect.

The invention relates to a method for preparing coal gas by moulded coal, belonging to the coal gas industrial field. The technical problem solved by the invention is to provide a method for preparing coal gas by moulded coal under normal pressure. Moreover, the coal gas prepared by the method has higher heat value. The method is characterized in that: the thicknesses of material layers when moulded coal is gasified are: 300 to 500mm of an ash layer, 250 to 300mm of a gasification layer and 500 to 800mm of a fuel preparation layer; a gasification agent is obtained through mixing water vapor with air with oxygen volume content of 26 to 28 percent; and the saturation temperature of the gasification agent is between 65 and 67 DEG C. The heat value of the coal gas prepared by the method is between 6,300 and 6,700Kj / Nm<3> which is much higher than the heat value (approximately 5,200 to 5,500Kj / Nm<3>) of coal gas prepared by the prior method for preparing coal gas by moulded coal; therefore, the method has a wide application prospect.

The present invention relates to method of producing biological diesel oil with leftover of edible oil processing, and belongs to the field of oil and grease chemical technology. The method of producing biological diesel oil with leftover of edible oil processing, includes the steps of pre-treatment of the oil leftover, ester exchange reaction with methanol, recovering solvent, laminating to separate glycerin phase, water washing of oil layer, and dewatering to obtain biological diesel oil. The method features the ester exchange reaction in the codissolved system form with the pre-treated oil leftover, methanol and tetrahydrofuran with sulfuric acid as catalyst; and the edible oil leftover produced in the vegetable oil refining process. The biological diesel oil has low viscosity and burning performance similar to that of 2# diesel oil.

The invention discloses a method for preparing gangue slag machine-made sand. The method comprises: weighing raw materials for next use, adding all raw materials without a water reducing agent into asand making machine, crushing, grinding and shaping the gangue slag through the sand making machine containing a grinding medium, and controlling the ground gangue slag particle shapes and fineness through adjusting a feeding amount of a feeder, the sizes, amount and quality of the grinding medium and the load of the grinding medium to obtain a crushed mixture. The gangue slag machine-made sand can guarantee the shape and fineness of gangue slag and improve the physical properties of the machine-made sand raw materials from the source. A screening powder removal system realizes gradation of the machine-made sand raw materials so that the gangue slag machine-made sand has good gradation effects and good particle shapes.

The invention discloses a method for producing N375 carbon black from blended oil. Carbon black production raw material oil is composed of 50% of ethylene bottom oil, 20% of anthracene oil and 30% ofcoal tar through proportioning or 35% of ethylene bottom oil, 35% of anthracene oil and 30% of coal tar. The method has the technical effects that 1) the source of carbon black production raw materialoil is expanded, a part of coal tar series oil is replaced by ethylene bottom oil as the carbon black production raw material oil; 2) an oil formula is optimized and adjusted, control on internal indexes of carbon black is intensified, the product quality is improved, and the production cost is lowered; 3) the supply channels of the carbon black production raw material oil are expanded, a part ofother oil products are supplemented, the shortage of tar supply is alleviated, and a technical foundation for further reducing the cost of raw materials and increasing the benefits is made; and 4) carbon black raw material oil with stable supply sources and lower price is obtained, and stable operation of carbon black production equipment is ensured.

The invention relates to a secondary cast-on process for continuous-casting tundishes and belongs to the technical field of continuous casting of the metallurgical industry. According to the technical scheme, the process comprises the steps that (1), before casting of the tundishes is stopped, slagging treatment is conducted on the tundishes; (2), when the liquid steel level of the tundishes remains at 200 mm, the remaining one to two middle streams of water gaps are cast continuously; (3), when the tundish liquid steel level is at 10-20 mm, casting of the tundishes is stopped; (4), the tundishes are baked, the baking temperature ranges from 1,100 DEG C to 1,300 DEG C, and the baking time ranges from 45 minutes to 180 minutes; (5), after baking of the tundishes is completed, liquid steel in steel ladles is injected into the tundishes; and (6), the liquid steel level of the tundishes is greater than 300 mm, and secondary casting is conducted on the tundishes. The secondary cast-on process has the beneficial effects that the temperature loss of the tundishes is reduced, the service life of the tundishes is guaranteed, the consumption of continuous-casting refractory is lowered, and the smooth production of iron and steel enterprises is guaranteed.

The invention provides a method for treating and reusing Haematococcus pluvialis large-scale culture wastewater. The method utilizes the heat sensitivity characteristic of the growth inhibitors in the Haematococcus pluvialis large-scale culture wastewater and adopts a technology of precipitation after heating to remove the growth inhibitors, so the recycle of the wastewater is realized. The invention simultaneously provides a method for realizing the treatment and the reuse of the Haematococcus pluvialis large-scale culture wastewater. The device which adopts a large solar apparatus to heat the wastewater has the advantages of energy saving, environmental protection, low cost, and strong maneuverability.

The invention discloses an environment-friendly recycled asphalt mixture and a preparation technology thereof. The environment-friendly recycled asphalt mixture comprises waste asphalt, biological asphalt, modified asphalt, 40-mesh waste tire powder, aggregate, mineral powder, environment-friendly solvent oil, mandarin oil, coumarone, smectite, silver-loaded zeolite, lime, stannic oxide, 3-isocyanatopropyltriethoxysilane, polyoxyethylene ether, glycerophosphate, a recycling agent and sodium silicate. The environment-friendly recycled asphalt mixture has the advantages that the recycled asphalt mixture with all pavement properties ranking as a high level is capable of ameliorating tension in supply of petroleum asphalt, is environment friendly and energy saving by using the wastes reasonably and can be used as a novel substitute of petroleum asphalt mixtures.

Disclosed is an aromatic diether dicarboxylic acid. The aromatic diether dicarboxylic acid accords with the general formula which is shown in the description, wherein the R group is selected from oneof three groups which are shown in the description, a heterocyclic aromatic group and a polycyclic aromatic group and the n is a positive integer. The heterocyclic aromatic group refers to an aromaticgroup having carbon atoms and at least one heterocyclic atom which constitute a ring. The polycyclic aromatic group refers to an aromatic group in which two or more benzene rings are connected in a condensed ring form. The invention also discloses applications of the aromatic diether dicarboxylic acid as a monomer raw material in the fields of coating, adhesives, macromolecule materials, especially special engineering plastics. In a polymerization reaction, the introduction of an ether bond in the monomer, the effective collision probability of a reaction group is increased, the utilization rate of the monomer is increased, the yield of the polymer is improved, and a feasible solution is provided for the problem of tight supply of the dicarboxylic acid monomer.

The invention relates to a straw gasifying furnace. A material cylinder, a bracket and a fire-enclosing ring are connected in a demountable way. An ignition hole connected with an ignition tube, a plurality of assistant air doors, a clamp and a demountable movable soleplate provided with an air hole at center are arranged at the bottom of the material cylinder. A view hole is arranged at one side of the bracket bottom, and a valve-style smoke-venting tube is arranged on the top of the other side of the bracket. A combustion-supporting device is fixedly connected with the inner wall of the bracket by a fixing plate provided with holes. An annular covering plate is arranged on the top of the combustion-supporting device and a thin iron tube faucet is arranged at the bottom of the combustion-supporting device and when in use, the faucet can be jointed with a vent. The fire enclosing ring appears as a column body provided with holes and is arranged at the center of the top of the bracket. Material required by the device is various, the using cost is low, and the use of the furnace is clean, convenient, safe and reliable. The furnace can conserve energy and is also environment-friendly.

The invention relates to a secondary cast-on process for continuous-casting tundishes and belongs to the technical field of continuous casting of the metallurgical industry. According to the technical scheme, the process comprises the steps that (1), before casting of the tundishes is stopped, slagging treatment is conducted on the tundishes; (2), when the liquid steel level of the tundishes remains at 200 mm, the remaining one to two middle streams of water gaps are cast continuously; (3), when the tundish liquid steel level is at 10-20 mm, casting of the tundishes is stopped; (4), the tundishes are baked, the baking temperature ranges from 1,100 DEG C to 1,300 DEG C, and the baking time ranges from 45 minutes to 180 minutes; (5), after baking of the tundishes is completed, liquid steel in steel ladles is injected into the tundishes; and (6), the liquid steel level of the tundishes is greater than 300 mm, and secondary casting is conducted on the tundishes. The secondary cast-on process has the beneficial effects that the temperature loss of the tundishes is reduced, the service life of the tundishes is guaranteed, the consumption of continuous-casting refractory is lowered, and the smooth production of iron and steel enterprises is guaranteed.

The invention discloses a low-temperature plasma mask sterilization and repair electret machine and method, and belongs to the technical field of medical mask sterilization and repair. The machine comprises a shell. A power supply, a blowing device, a plasma electret device and a mask fixing device are arranged in the shell. The mask fixing device is positioned above a dielectric barrier dischargedevice. An electric field generated by the plasma electret device is used for treating the surface of a to-be-treated mask, and the charged adsorption capacity of the mask can be improved. Electret treatment is performed on a non-woven fabric material, meanwhile, plasma active particles generated in the electric field are quickly adsorbed by the material, the sterilization effect can be continuously achieved after the plasma active particles are adsorbed, and the mask is free of peculiar smells. Efficient sterilization, disinfection and regeneration can be conducted on a mask used for a shorttime, mask supply tension is relieved, pollution is reduced, and meanwhile quick and portable treatment of a small number of small masks is achieved.

The invention discloses a backfill material prepared from engineering waste slurry and a preparation method thereof, and each cubic meter of the backfill material comprises 350-700 parts by mass of engineering slurry, 30-400 parts by mass of water, 90-150 parts by mass of cement, 172-250 parts by mass of fly ash, 400-500 parts by mass of coarse sand, 200-300 parts by mass of fine stone, 30-96 parts by mass of bentonite, 6.0-6.5 parts by mass of a water reducing agent and 11.5-12 parts by mass of an accelerator. The water content of the engineering slurry is less than 320%. The problems that the engineering waste mud is difficult to treat, and natural backfill materials used for engineering construction backfill are increasingly scarce are solved.

According to the lithium ion battery positive electrode slurry and the preparation method thereof, two PVDF binders are matched for use, the stirring process is further optimized on the basis of traditional dry method stirring, one-step pre-dispersion and two-step high-low speed dispersion are added on the basis of a dry method, the states of pre-dispersion and low-speed dispersion slurry are controlled, and the delivery viscosity is controlled; the dispersion uniformity of the lithium ion battery positive electrode slurry can be improved, and meanwhile, the stability of the slurry can be greatly improved. The process route is simple and easy to implement, the gel problem caused by interaction of domestic PVDF and a positive electrode main material in use is delayed or solved, meanwhile, it is guaranteed that the slurry has long-time stability and moderate viscosity, and the problems that the slurry is weak in shipment sieving capacity, prone to settling and blocking a filter element, hard spots exist in coating and the like are solved. Meanwhile, the supply tension of imported raw materials is relieved, and the cost is reduced.

The present invention relates to method of producing biological diesel oil with leftover of edible oil processing, and belongs to the field of oil and grease chemical technology. The method of producing biological diesel oil with leftover of edible oil processing, includes the steps of pre-treatment of the oil leftover, ester exchange reaction with methanol, recovering solvent, laminating to separate glycerin phase, water washing of oil layer, and dewatering to obtain biological diesel oil. The method features the ester exchange reaction in the codissolved system form with the pre-treated oil leftover, methanol and tetrahydrofuran with sulfuric acid as catalyst; and the edible oil leftover produced in the vegetable oil refining process. The biological diesel oil has low viscosity and burning performance similar to that of 2# diesel oil.

The invention relates to a method for preparing coal gas by moulded coal, belonging to the coal gas industrial field. The technical problem solved by the invention is to provide a method for preparing coal gas by moulded coal under normal pressure. Moreover, the coal gas prepared by the method has higher heat value. The method is characterized in that: the thicknesses of material layers when moulded coal is gasified include: 300 to 500mm of an ash layer, 250 to 300mm of a gasification layer and 500 to 800mm of a fuel preparation layer; a gasification agent is obtained through mixing water vapor with air with oxygen volume content of 26 to 28 percent; and the saturation temperature of the gasification agent is between 65 and 67 DEG C. The heat value of the coal gas prepared by the method is between 6,300 and 6,700Kj / Nm<3> which is much higher than the heat value (approximately 5,200 to 5,500Kj / Nm<3>) of coal gas prepared by the prior method for preparing coal gas by moulded coal; therefore, the method has a wide application prospect.

The invention discloses a pneumatic supply system. The pneumatic supply system comprises an air compression mechanism, an air collecting mechanism and an air conveying mechanism, wherein the air compression mechanism comprises a plurality of disc compressor in a matched mode; the air collecting mechanism is used for collecting compressed air produced by the air compression mechanism and is connected with the air compression mechanism through a pipe; the air conveying mechanism conveys the compressed air collected by the air collecting mechanism to a pneumatic load through a pipeline. According to the pneumatic supply system, the air compression mechanism is utilized to collect natural power and compresses the natural power into pneumatic energy, and the pneumatic energy is conveyed to the air collecting mechanism through the pipeline and then conveyed to the pneumatic load through the air conveying mechanism. The pneumatic supply system is reasonable in structure and safe in conveying, and provides the pollution-free pneumatic energy for the pneumatic load. According to the pneumatic supply system, sources of the pneumatic energy are extremely wide natural power (like wind), and the problem of energy shortage can be effectively resolved. In addition, the pneumatic supply system can effectively store and convey the pneumatic energy, and is easy and convenient to use.

The invention belongs to the field of metal smelting, and particularly relates to ceric rare earth ferrosilicon alloy and a production method thereof. The technical problems that existing rare earth ferrosilicon alloy is high in production cost, severe in alloy pulverization and low in rare earth yield. According to the technical scheme, the ceric rare earth ferrosilicon alloy comprises, by mass, 29% to 31% of RE, 49% to 51% of Si, smaller than or equal to 0.1% of Ca and smaller than or equal to 0.5% of Al, wherein the content of Ce / RE is larger than or equal to 85%. The invention further provides the production method of the ceric rare earth ferrosilicon alloy. Rare earth elements are used in a balanced mode through the ceric rare earth ferrosilicon alloy produced through the carbothermy method, the utilization rate of rare earth resources in short supply is effectively increased, the circular economy is energetically developed, and the improvement of the rare earth ferrosilicon production technology is promoted.

The invention relates to a novel valve side wire-outlet structure for a converter transformer, and belongs to the technical field of an extra-high voltage converter transformer. According to the technical scheme, multiple layers of insulating paper sleeves and corrugated boards are arranged on the exterior of an aluminum pipe in the wire outlet; the insulating paper sleeves in each layer are arranged from inner to outer in a stepped and overlapped manner; the lengths of the insulating paper sleeves in the inner layer are greater than that of the insulating paper sleeves in the outer layer; the corrugated boards are arranged between adjacent two layers of the insulating paper sleeves; the lengths of the corrugated boards are greater than that of the insulating paper sleeves in the upper layer and less than that of the insulating paper sleeves in the lower layer; flat paper boards (2) are arranged in the junctions of the insulating paper sleeves; the insulating paper sleeves and the corrugated boards on the exterior of the aluminum pipe are gradually thinned to be converted into a crepe paper (1) structure in a transitional manner; the exterior of the aluminum pipe far from the wire outlet is wrapped with the crepe paper (1); the crepe paper wraps for insulation until the flat paper boards (2) are wrapped, and then the crepe paper continuously wraps for insulation until the insulating paper sleeves in the outermost layer are wrapped. The novel valve side wire-outlet structure has the positive effects that the novel valve side wire-outlet structure is reasonable in structure, easy to implement, and capable of effectively relieving tension supply of valve side leads and capable of promoting the rapid development of the direct current power transmission and transformation industries.

The invention discloses an early-maturing-promoting efficient cultivating method for a sweet potato protected area in the southern Shandong province. An early-maturing, high-yield and high-quality sweet potato new variety Longshu 9 is selected, a three-film covering planting mode and a fresh potato and potato seedling sale production mode are adopted, organic fertilizer is additionally applied inthe production process, the technical means of timely early planting, reasonable close planting, heat preserving and heating, seedling harvesting and scientific management is carried out, and the problems that in the sweet potato early-maturing-promoting cultivating technology, the ground temperature is low, heating is difficult, the survival rate of potato seedlings is low, development is slow, and the sweet potato planting benefits are slightly increased are solved. Compared with a traditional planting method, by means of the method, the sweet potato planting time can be advanced before andafter 25th February, seedlings are harvested starting from the last ten days of April, the seedlings are harvested 3-5 times in the whole sweet potato growth period, about 60,000 potato seedlings areharvested in the area of 666.7 m<2>, fresh potatoes are harvested starting from the first ten days of June, and it is promoted that the fresh potatoes come into the market in advance.

The invention provides a sugarcane leaf fiber rubbing and pressing device. The rubbing and pressing device comprises a casing with a feeding port, a rubbing and pressing passage, a circulating shifting lever, a poking rod and a rotating shaft, wherein the rotating shaft is movably connected with the casing, and one end of the rotating shaft is in transmission connection with a motor through a transmission mechanism. The rubbing and pressing device has the advantage that when the rubbing and pressing passage is blocked, excess materials can flow out through pores of a wire mesh to avoid blocking. During operation, the blockage can be effectively avoided to maintain the normal operation of a machine. Fibers in sugarcane leaves are effectively extracted to alleviate the tension in supply of fiber raw materials in the industry.

The invention provides a nano rare earth additive for dimethyl ether gas and methanol fuel. In the nano rare earth additive, the compounds or salts of lanthanum, cerium and manganese account for 60% of mass components, the compound or salt of each of lanthanum, cerium and manganese accounts for 10-25%, and the rest components are any three-five compounds or salts of arrowhead, lutetium, erbium, scandium, praseodymium, neodymium and yttrium. The invention also provides a preparation method and application of the nano rare earth additive. Ten nanoscale lanthanide series rare-earth elements are combined to oxygen-containing fuels such as the dimethyl ether gas and the methanol fuel in a reasonable proportion, thus the heat value utilization of the fuel is obviously improved and is superior to that of liquefied petroleum gas, thereby overcoming the defect that the heat value utilization of the oxygen-containing fuels such as the dimethyl ether gas and the methanol fuel is low. The nano rare earth additive can completely replace traditional fuels such as the liquefied petroleum gas, diesel and the like.