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1462 results about "Cinder" patented technology

A cinder is a pyroclastic material. Cinders are extrusive igneous rocks. Cinders are similar to pumice, which has so many cavities that its low density of 0.641g/cm^3 allows it to float in water. Cinder is typically brown, black, or red depending on its chemical content.

Haydite aerated concrete block and method for manufacturing same

The invention discloses a formula of a ceramic aggregate aerated concrete brick and a method for making the concrete brick. The compositions in portion by weight of the concrete brick are: 12 to 26 portions of cement, 26 to 46 portions of fly ash, 16 to 28 portions of ceramic aggregate, 2 to 6 portions of slag, 2 to 6 portions of cinder, 16 to 26 portions of water and 2 portions of addition agent, wherein the concrete matters in percentage by weight of the addition agent are: 10 to 18 percent of aluminum powder (a foaming agent), 20 to 45 percent of polycarboxylate (a water reducing agent), 15 to 35 percent of 1122 fly ash excitant and 20 to 50 percent of coagulant hardening accelerator in which calcium chloride and sodium sulfate compounds respectively occupies 50 percent. The concrete steps for making the ceramic aggregate aerated concrete brick are as follows: raw materials are weighed; the weighed raw materials are placed in a stirring machine to carry out stirring and mixing in advance; an addition agent is added in the stirring machine to carry out full stirring; a brick die is prepared, and stirred raw materials are cast in the brick die; initial set and forming are carried out; stripping is carried out; a water-proofing agent is sprinkled on a stripped brick; and natural curing is carried out. Moreover, the obtained brick has light dead weight, low density, high strength, low water absorption rate and excellent sound insulation performance and heat-shielding performance.
Owner:胡宗芳 +1

Metal molten drop ejecting device and method for ejecting high-melting-point metal molten drops using same

ActiveCN102672193AReal-time monitoring of injection statusSpray formingImpurity
The invention discloses a metal molten drop ejecting device and a method for ejecting high-melting-point metal molten drops using the same. The metal molten drop ejecting device is used for solving the technical problem that the existing metal molten drop ejecting device is poor in stability in the ejecting forming process when ejecting high-melting-point light reactive metal molten drops. The metal molten drop ejecting device maintains stable ejecting of the high-melting-point metal molten drops by means of a nozzle automatic dredge device and an ejecting state detection system. The nozzle dredge device and a metal molten drop ejecting state monitoring and feedback system for high-melting-point metal ejecting are adopted; when the molten drop ejecting state monitoring and feedback systemdetects unstable ejecting state and transmits cleaning signals, an excitation rod is lowered, large positive or negative pressure is led into an inner channel of the excitation rod instantly, so thatmolten metal or gas at the position of a nozzle flows fast to bring out scale cinder or impurities adhered onto the inner wall of the spraying orifices, the aim of cleaning and dredging tiny nozzles can be achieved, and accordingly the ejecting forming process of high-melting-point metal molten drops is stable.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Comprehensive utilization method for red mud

The invention discloses a method for comprehensively utilizing red mud, comprising the following steps: chloridizing roasting, namely roasting the mixture of the red mud, coal and calcium chloride; cinder treatment, namely obtaining magnetic iron slag and non-magnetic slag after magnetic separation is carried out to levigated cinder, and then separating the magnetic iron slag and non-magnetic slag; adding calcined soda or oxalic acid after levigation liquid and wash water are rich in mischmetal due to cyclic use, and then precipitating mischmetal slag; treatment of dry dust and circulation liquid, namely, after dry powder for roasting dust collection is collected, mixing the dry powder with scouring water which is used for tail gas circulation and then leaching soluble ScCl3 and GaCl3; after filter pressing, precipitating scandium by adding oxalic acid crystal in filtrate; carrying out filter pressing again, precipitating gallium and Ti(OH)4 by adding ammonia into the filtrate, dissolving obtained gallium-titanium slag with acid and then using P2O4 extractant to extract the gallium; and using extractant to extract the scandium after scandium precipitate is dissolved by acid, carrying out precipitation again by adopting back-extraction acid dissolving, and obtaining Sc2O3 by means of roasting. The method can realize recovery of valuable metals from the red mud, and secondary residual slag is totally used for building material production; and the method has environment protection effects and economic benefits, plays an important role in the development of recycling economy and is applicable to enterprises generating red mud.
Owner:张钦

Method for recovering gold, silver, iron and lead from acid calcination slag by magnetization chlorination process

The invention discloses a method to recover the gold, silver, iron and lead from the acidiation roasted cinder by a magnetic chlorination method, which is characterized in that the method comprises two sections, one is that the gold, silver, lead, and copper in the cinder are volatilized as a chloride gas through the high temperature chlorination roasting, and the gold, silver, copper and lead are recovered through the condensed gas; the other is that the iron is recovered by the process that the coal dust is filled during the granulation of the cinder, the magnetic reduction roasting is done with the chlorination roasting, the ferric oxide is reduced to the ferroferric oxide, and the processed cinder is ground and selected magnetically. Thanks to the recovering method, the recovery rate of the gold and silver is above 95%, the iron recovery rate is above 85%, and the lead recovery rate is above 90%, the production cost is about 300 RMB per ton, the profit is over 700 RMB per ton, so that a multiple billion RMB profit is harvested, and the waste of the limited resource is reduced. The method to recover the gold, silver, iron and lead from the acidiation roasted cinder by a magnetic chlorination method has the advantages of simple process, high efficiency, low smelting cost, comprehensive utilization of the ore resources, elimination of the environment pollution, and economic benefit growth of enterprise.
Owner:张伟晓

Aerated concrete block produced through using specially-made mineral waste residue and tailings steel slag and production method of aerated concrete block

The invention provides an aerated concrete block produced through using specially-made mineral waste residue and tailings steel slag and a production method of the aerated concrete block. The aerated concrete block is produced through the following steps: adding an additive A, an additive B and water in components as follows: 40 to 50% of specially-made mineral waste residue obtained in a such way that cinder is obtained through the production process of recycling steel slag discharged from Taizhou Zhenchang Industrial Waste Residue Comprehensive Utilization LTD and metallurgical and chemicalferrous waste residue, and then is water-quenched, 35 to 45% of tailings steel slag, 2 to 4% of cement clinker, 1 to 3% of gypsum, and 8 to 12% of modified wood, wherein the grain size of the specially-made mineral waste residue is less than or equal to 5 mm, the grain size of the tailings steel slag is less than or equal to 20 mm, the additive A accounts for 1% of the total weight of the components, the additive B accounts for 0.05% of the total weight of the components, and water accounts for 0.5 to 0.6 times of the total weight of the components; and conducting mixing, heating, air-entrapping, steaming and pressing, and curing in sequence. The aerated concrete block produced by adopting the production method is high in strength, and small in drying shrinkage value, and can meet the block standards of the A3.5 grade and the B09 grade in the JC1062-2007 foam concrete block standard.
Owner:TAIZHOU ZHENCHANG IND RESIDUE COMPREHENSIVE UTILIZATION +1

Composite alkali-resistant refractory brick of pulverized fuel ash

The invention provides a composite alkali-resistant refractory brick of pulverized fuel ash, wherein the composite brick is applied to the inner lining of an industrial kiln and is prepared by providing refractory aggregate, refractory powder, light aggregate, refractory clay, aluminate cement and silica micropowder to the pulverized fuel ash of solid wastes of a fuel electric plant and the coal cinder after burning, then adding water into the same and mixing, and then pressing and drying. The composite alkali-resistant refractory brick of pulverized fuel ash is composed of compact refractory material components and heat insulation material components. The percentages by weight of the compact refractory material components are as follows: the refractory aggregate is 55 to 65 %, the pulverized fuel ash is 5 to 8 %, the refractory powder is 10 to 15 %, the silica micropowder is 4 to 6 % and the aluminate cement is 8 to11 %; the percentages by weight of the heat insulation material components are as follows: the coal cinder is 50 to 65 %, the pulverized fuel ash is 5 to 10 %, the light aggregate is 5 to 10 %, the refractory clay is 5 to 8 %, the refractory powder is 10 to 16 %, the silica micropowder is 3 to 5 % and the aluminate cement is 7 to 10 %; and the compact refractory material components and the heat insulation material components of the composite alkali-resistant refractory brick of pulverized fuel ash provided by the invention are pressed into a tightly combined compound. Compared with common refractory brick, the composite alkali-resistant refractory brick of pulverized fuel ash provided by the invention has the advantages that a heat insulation layer is increased, the temperature for the skin of the rotary kiln can be reduced, a great quantity of energy can be saved and the service life of the kiln is prolonged.
Owner:阮克胜

Method for producing petrol and diesel oil by recycling waste lubricant oil

The invention relates to a method for producing gasoline and diesel fuel through resource utilization of waste lubricant oil, which belongs to the technical field of environmental protection and energy resources. The method comprises: integrally performing the vapor phase catalytic cracking process on molecular sieve / alumina catalyst of the waste lubricant oil and the fractionation and separation process of reaction products in a reaction fractionator; injecting crude waste oil into a distillation kettle, and adopting waste residue and fuel gas generated during conversion of the waste lubricant oil for heating, wherein the temperature of the distillation kettle is controlled to be between 250 and 500 DEG C; making distilled oil gas enter the reaction fractionator which is filled with the molecular sieve / alumina catalyst for reaction and rectification when the distillation kettle is heated to 250 DEG C, wherein the ratio of the catalyst to oil is controlled to be between 1 and 20; and cutting the oil into the gasoline and the diesel fuel according to the distilled temperature, wherein fuel gas generated by reaction and residual cinder can be used for heating the distillation kettle, and generated fuel gas can be used for heating the distillation kettle. The method has the advantages of wide range of raw materials, normal-pressure reaction and separation, simple technological flow, high conversion and selectivity of products, long service life of the catalyst, comprehensive utilization of the fuel gas and the cinder, no secondary pollution, large operating flexibility of a production apparatus, and small investment.
Owner:DALIAN UNIV OF TECH

Method for comprehensively recovering gold, iron and sulphur resource from gold-containing sulfurous iron ore

InactiveCN101348859AHigh recovery rateIncrease sulfur contentFlotationWet separationSlagAdhesive
The invention discloses a method for comprehensively recovering gold sulfurous iron resources from gold-bearing sulfurous iron ore, comprising the following steps: middle and low-grade sulfurous iron ore containing micro-gold and enclosed gold is grinded, and gold-bearing high-grade sulfur ore concentrate is obtained after sulfate dipping, mixture, floatation and concentration for a plurality of times; the ore concentrate undergoes high-temperature overoxidation roasting in a fluid-bed furnace to prepare sulfuric acid after flue gas undergoes dust removal and purification, and cinder becomes high-iron low-sulfur gold-bearing slag; the cinder is added with a pellet adhesive and a chlorating agent for grinding, and a pellet is prepared; the pellet is dried and then undergoes high-temperature chlorination-evaporation roasting; the flue gas is roasted and gold concentrate is obtained after dust collection; and the roasted pellet ore is a high-quality iron-making raw material the iron content of which is more than 60 percent and the gold content of which is less than 0.2 grams per ton. The technology highly efficiently recovers a large amount of gold resources which is lost in the sulfurous iron ore due to difficult cyanidation and leaching caused by containing the micro-gold and the enclosed gold through mixture and floatation of gold and sulfur, concentrate for a plurality of times, high-temperature overoxidation roasting deep desulfurization and high-temperature chlorination roasting degolding, obtains high-quality iron pellet ore while obtaining the sulfuric acid, and highly efficiently utilizes iron resources.
Owner:KUNMING UNIV OF SCI & TECH

Burning-and-steam-curing-free alkaline slag brick and preparation method thereof

The invention discloses a burning-and-steam-curing-free alkaline slag brick. The burning-and-steam-curing-free alkaline slag brick is prepared from the following raw materials in part by weight or volume: 20 to 200 parts of alkaline slag or vulcanized alkaline slag, 0 to 200 parts of magnesium slag, 0 to 200 parts of fly ash, 0 to 200 parts of coal cinder, 0 to 200 parts of tailing sand, 0 to 200 parts of limestone powder, 0 to 200 parts of coarse aggregate, 0 to 200 parts of oil shale waste, 0 to 200 parts of activated coagulation aiding material, 0 to 200 parts of waste sand, 2 to 20 parts of cement, and a proper amount of water. The raw materials are stirred and then are fed into a block making machine for vibration compression molding, and a finished product is obtained through natural curing or solar warming-up curing for 7 to 28 days. The burning-and-steam-curing-free solid bricks, perforated bricks, hollow blocks, floor tiles, road edge bricks, grass planting bricks, slope protection bricks and fence railings of different specifications can be produced by replacing different mold machines. Industrial waste slag is utilized to turn harm into good, material selection is flexible, the process is simple and convenient, the cost is low, the strength of the product is high, and the burning-and-steam-curing-free alkaline slag brick has excellent development and application prospects.
Owner:司密花 +2

Full-automatic composite self-insulation building block production method

The invention discloses a full-automatic composite self-insulation building block production method. The full-automatic composite self-insulation building block production method includes distributing, building block forming, maintenance, supporting plate returning and product conveying. Distributing includes shell material distribution and thermal insulation material distribution. Shell materials are made of 15% of cement, 50% of coal cinders, 18% of sand, 10% of rubble and 7% of water. Thermal insulation materials are made of, by mass, 54% of PO42.5 cement, 10% of fly ash, 0.5% of foam stabilizer and fortifiers, 31.5% of water and 4% of foaming agents. The stirred raw materials are conveyed into a forming machine (4) so that forming can be carried out; a formed building block shell is conveyed into a maintenance kiln (8) to be maintained four hours; filling cores are poured, and the building block shell is conveyed into the maintenance kiln again to be maintained five to eight hours; maintained building blocks are piled, packaged and stacked. All the steps of the production method are coordinated, automatic control is achieved, and production efficiency is improved; the full-automatic composite self-insulation building block production method has good ecological benefit and social benefit.
Owner:连太吉 +3
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