83results about How to "Flammable" patented technology

The invention discloses a method for preparing pitch used for producing coal-based needle coke. The method comprises the following steps that: coal tar and coal pitch are taken as raw materials; coal tar light compositions are taken as solvent; coal dust, metallurgical coke powder, or mixture of the metallurgical coke powder and diatomite, or mixture of the metallurgical coke powder and expanded perlite are taken as filter aid; uniform filter aid filter cakes are formed in a centrifuge by filter aid mixture at first, and then mixture of the coal pitch or the coal tar, wash oil and the filter aid is added into the centrifuge in which the uniform filter aid filter cakes are formed for centrifugal filtration; and obtained centrifugate is driven to pass through atmospheric distillation recovery solvent, so as toe obtain the refining pitch raw materials which are suitable for producing the coal-based needle coke. The yield of the pitch raw materials used for producing the coal-based needle coke prepared by the technology is improved by 10 to 15 percent compared with other methods; the manufacturing technique is simple and the preparation cost is low; and the mass production is easy to realize.

The invention discloses a tartary buckwheat flavor pecan and tartary buckwheat leach liquor processing method. The tartary buckwheat leach liquor processing technology includes the procedures of tartary buckwheat obtaining, impurity removal, fine selection, cleaning, soaking, steaming, drying, frying, cooling, soaking and leach liquor combining. The tartary buckwheat flavor pecan processing technology includes the procedures of pecan obtaining, grading, cleaning, samming, opening, de-enzyming, taste adding (material liquid), taste oozing, drying, baking, cooling and packaging. Pecans obtained through the technology are bright in color, kernels are crisp, and a special flavor of tartary buckwheat is obtained. The pecans are pure and natural in fragrance, and physical properties in the tartary buckwheat are integrated in the pecans. The pecans have the functions of helping digestion and reducing blood fat, and leisure nut food which is natural, fragrant and beneficial to health and shows a whole new concept is provided for customers.

The invention discloses a method for extracting theophylline sodium salt or theophylline from a theophylline sodium salt or theophylline mother solution by a styrene type macroporous resin adsorption method, which comprises the following steps: (1) regulating the pH value of the theophylline sodium salt or theophylline mother solution; (2) filtering the mother solution and removing suspended impurities in the mother solution; (3) adsorbing the mother solution by adsorption resin; (4) desorbing the adsorption resin after adsorption saturation by a desorbing agent to obtain a desorption solution; (5) regulating the pH value of the desorption solution, standing and crystallizing theophylline sodium salt or theophylline; (6) centrifugally filtering; and (7) drying to obtain solid theophylline sodium salt. The method provided by the invention has the advantages that the theophylline sodium salt or theophylline crude product has better quality, the operation safety is better, the extraction efficiency is higher, the extraction cost is low, and the method is more suitable for mass production and facilitates realizing automatic operation. With the method disclosed by the invention, the extraction cost of the theophylline sodium salt and theophylline can be reduced, the extraction yield of the theophylline sodium salt and theophylline is increased, and the competitiveness of enterprises is enhanced.

The invention discloses environment-friendly low-formaldehyde wastewater-discharge-free furan resin and a preparation method thereof. The furan resin is prepared from the following components: 50-60 parts of furfuryl alcohol, 9-15 parts of formaldehyde, 8-12 parts of urea, 25-35 parts of treated wastewater, 0.2-0.5 part of ammonia water, 0.2-0.5 part of formic acid, 0.2-0.5 part of sodium hydroxide, 0.4-0.5 part of a coupling agent and 2-6 parts of methanol. The preparation method comprises the following steps: adding wastewater in a reactor, then adding 9-15 parts of formaldehyde, 6-10 parts of urea, and slowly adding sodium hydroxide to adjust the pH to 8-10; heating to 85-95 DEG C, carrying out heat preservation and reacting for 30-60 minutes, adding the rest of urea and 30-35 parts of furfuryl alcohol and slowly adding sodium hydroxide to adjust the pH to 8-10; heating to 85-95 DEG C, carrying out heat preservation and reacting for 30-60 minutes, and after the reaction is completed, carrying out vacuum dehydration; adding the rest of furfuryl alcohol and slowly adding formic acid to adjust the pH to 4-5; heating to 90-105 DEG C, carrying out heat preservation and reacting for 30-60 minutes, and after the reaction is completed, carrying out vacuum dehydration; adding 2-4 parts of tap water and stirring for 10-20 minutes and after the stirring is completed, carrying out vacuum dehydration; and cooling to below 60 DEG C, slowly adding ammonia water to adjust the pH to 6.5-7.5, further cooling to below 40 DEG C, adding methanol and the coupling agent, stirring for 10-20 minutes and filtering.

The invention relates to a novel building thermal insulation material composition produced from drift-sand and a preparation method thereof and belongs to the technical field of manufacturing of ceramic products. The main technical characteristic of the invention is as follows: the raw material composition of the novel building thermal insulation material composition consists of 60-92% of drift-sand, 0-12% of borax, 1-4% of talc, 3-8% of soda, 2-7% of sodium fluosilicate, 2-12% of silicon carbide and 2-15% of limestone. A standard building thermal insulation material is processed through raw material screening, blending, fine grinding, flour milling, forming, firing and cutting. The novel building thermal insulation material composition disclosed by the invention has less raw material components, the preparation method is simple, the drift-sand is used as the main raw material, and the cost is low, so that the preparation method is a new technology for changing harmful substances into treasures, and the novel building thermal insulation material composition has the advantages of good thermal insulation properties, incombustibility, high strength, low water-absorption rate, corrosion resistance, convenience in mounting and the like. Meanwhile, one of better ways for industrial desertification control is provided, the erosion of deserts to the land can be reduced, farmland and green areas are expanded, and pollutions of the drift-sand to the environment can be greatly improved.

The invention discloses a polymethacrylate/graphene nano composite polymer pour point reducer and a preparation method thereof. The method comprises the following steps: (1) ultrasonically dispersing graphene oxide in an organic solvent to obtain a suspension; then adding methacrylate and an initiator into the suspension, and performing a polymerization reaction at 70 to 90 DEG C in an inert atmosphere to obtain a viscous material; and (2) adding a reducing agent into the viscous material to reduce the graphene oxide, and after the reaction is ended, performing the after-treatment to obtain the polymethacrylate/graphene nano composite polymer pour point reducer. The preparation method is simple and feasible, easy in operation, and high in safety; the obtained pour point reducer is stable in performance and excellent in pour point reduction effect; and moreover, the graphene has flammability, does not block a filter screen of an engine, and is not deposited at the bottom of the engine. The polymethacrylate/graphene nano composite polymer pour point reducer is applied to Number-0 diesel, and a cold filter plugging point and a condensation point of the number-0 diesel can be respectively decreased by 6 to 15 DEG C and 12 to 23 DEG C.

Disclosed is a method of improving HC emission when an engine is cold-started. The method includes the following main steps: 1. fresh air is injected into a passage behind an exhaust valve of the engine; 2. when the exhaust valve is opened, the fresh air performs oxidation reaction directly with exhaust gas; 3. the exhaust gas enters a three-way catalytic converter for catalyzing and converting. A system realizing the method comprises an inlet of a secondary air valve which connects an electromagnetic valve control and a secondary air pump extracting air from an air filter, an oxygen sensor, the three-way catalytic converter and an electronic control unit; wherein the rear pipe of the exhaust valve of the engine is connected with the three-way catalytic converter, the oxygen sensor is arranged before the three-way catalytic converter, and the electronic control unit is connected with the electromagnetic valve and the oxygen sensor via electricity. The method is characterized in that the rear outlet of the secondary air valve is connected with the exhaust valve of the engine. Since the position where secondary air is injected into the exhaust gas is arranged directly behind the exhaust valve, the oxidation reaction utilizes the temperature of the exhaust gas to the greatest extent, emission of HC and Co is greatly reduced, and the catalytic converter is started as soon as possible, thereby resulting in that emission requirements of cold-started emission values can be achieved more easily.

The invention relates to a composite treatment method of radioactive waste oil. The method sequentially includes the steps that 1, at the room temperature, a thickening agent is added into the waste oil during stirring, and even stirring continues to obtain a first material; 2, an addition agent is added into the first material during stirring, and even stirring continues to obtain a second material; 3, a curing agent is added into the second material during stirring, and even stirring continues to obtain a cured product. The method can be completed at the room temperature and has good compatibility with different waste oils or waste liquids, the obtained cured body is low in oil penetration rate, has certain strength and is easy to recycle after scattering and good for transportation, andthe cured body is combustible, so that subsequent incineration treatment is convenient.

The invention provides a battery leakage detector, which comprises a detector box body, a detector box cover and a power supply; the detector box body is internally provided with a detection device, and the detection device comprises a PCB module with a single chip microcomputer, and a temperature and humidity sensor, an ethylene glycol sensor, a carbon monoxide sensor and a communication interface which are arranged on the PCB module; the battery leakage detector makes up for the functional deficiency of an existing electric vehicle battery BMS system, performs targeted monitoring on batteryelectrolyte leakage and cooling liquid leakage, and achieves the functions of pre-discovery and pre-alarm on the thermal runaway phenomenon of a battery pack. Through the application of various sensors, the battery detection function is more comprehensive, hidden dangers caused by battery leakage are checked one by one, and the safety of the battery in the use process is truly guaranteed. Meanwhile, the detector also provides signal uploading and real-time alarming functions, so that all-around safeguard is realized.

The invention relates to water-permeable water storage bricks for paving paths of gardens. The bricks are prepared through the steps: mixing the ingredients in parts by mass: 1-2 parts of organic plant fiber material, 4-6 parts of sandy clay, 0.2-0.5 part of powdery shale and 0.1-0.3 part of powdery coal gangue, so as to prepare a powdery brick making raw material; and adding water into the powdery brick making raw material, carrying out stirring, carrying out press forming through a brick making machine, and carrying out sintering at the temperature of 1,100 DEG C to 1,300 DEG C by using a kiln, thereby preparing the bricks. According to the water-permeable water storage bricks, the sandy clay, the shale and the coal gangue serve as inorganic materials, and brick bodies with hard texture can be prepared through subjecting the sandy clay, the shale and the coal gangue to mixing and burning. By adding the organic plant fiber material, the organic plant fiber material can be carbonized through carrying out high-temperature baking on the brick bodies during brick making, so that each entire brick body can form a honeycomb structure, the honeycomb structure of each brick body can be used for improving the water storage and air ventilating capability of each brick body, and a remaining carbonized remainder can be slowly released into soil under the action of water to improve the fertility of the soil.

The invention discloses a wind power generator unit heat-dissipating device and a wind power generator unit heat-dissipating method based on a separate heat pipe heat exchanger, and belongs to the technical field of wind power generator unit temperature control. The internal part of a cabin of the wind power generator unit is subjected to heat dissipation by the separate heat pipe heat exchanger and the internal structure of the original cabin is changed little, so that manufacturing and mounting are facilitated; and a heat pipe condensation section and a heat pipe evaporation section of the separate heat pipe heat exchanger can be arranged separately, the heat pipe evaporation section is arranged on a part, needing heat dissipation, in the cabin, the heat pipe condensation section is arranged at the top of the cabin, a medium in the heat pipe evaporation section is changed into a gaseous medium after absorbing heat, the gaseous medium flows to the heat pipe condensation section at thetop of the cabin through a vapor ascending pipe and exchanges heat with the external air to be condensed into a liquid medium, the liquid medium returns to the heat pipe evaporation section under thegravity action and through a liquid descending pipe, and continuous transfer of heat is completed by depending on continuous phase change of the interal medium. The wind power generator unit heat-dissipating device has high heat-dissipating efficiency, can effectively solve the heat dissipation problem of a rotating part and an electric appliance component in the cabin and has extremely high practical value.

The invention relates to a coal ash type fire enhancing brick which is prepared from coal ash, coal slime, briquette coal blocks, solid fuel and coal powder. The coal ash type fire enhancing brick can improve the heat value of fuel and is good in environmental protection performance.

The invention relates to the technical field of coal industries, in particular to a honeycomb briquette; the honeycomb briquette comprises a raw coal, clay and an additive; the additive includes the components of the following weight portions: 3 to 9 of sodium chloride, 2 to 6 of alumina, 2 to 6 of ferriferrous oxide, and 2 to 6 of potassium chloride; the honeycomb briquette uses sodium chloride, alumina, ferriferrous oxide and potassium chloride as additives; due to a plurality of subtle reactions of the additives during the combustion process, the honeycomb briquette is characterized by easy combustion, long combustion time and the like; particularly, the effect is the best when the weight portions of sodium chloride, alumina, ferriferrous oxide and potassium chloride are 3:2:2:2; due to the use of the additives, the usage of the clay can be enlarged without impacting on the combustion effectiveness, and the production cost can be greatly reduced.

A composite biomass briquette is made up of biomass including stalk or straw, wood leftover, city household garbage and raw coal through crushing, mixing with chlorine fixating agent, sulfur fixating agent and combustion promoter, and hot die pressing. Its advnatages are high compression strength, low combustion point, high combustion efficiency and less environmental pollution.

The invention provides saw dust compound environment-friendly fuel slug which is prepared from ingredients in parts by weight: 15 to 25 parts of saw dust, 25 to 35 parts of ethyl alcohol, 4 to 12 parts of potassium nitrate, 1 to 3 parts of manganese dioxide and 35 to 45 parts of paraffin. The invention further provides a preparation method of the fuel slug. According to the fuel slug, the saw dustis utilized to adsorb the ethyl alcohol; meanwhile, an oxidizing agent of the potassium nitrate and a catalyst of the manganese dioxide are added to support combustion. The fuel slug has the advantages of inflammability, high combustion heat, full combustion, long combustion time, small ash content, good combustion performance and use performance, no potassium nitrate generation after combustion,energy conservation and environmental friendliness; furthermore, residual ash after combustion can be recycled to prepare potassium fertilizer, and an effective cycle of waste saw dust-fuel-fertilizer is achieved. The invention further discloses the preparation method of the fuel slug. The preparation method has the advantages of simpleness, easiness in implementation and suitability for wide popularization.

The invention discloses a catalyst with a shell-core structure, and a preparation method and application thereof. The catalyst takes a composite oxide containing zinc-loaded aluminum oxide and molybdenum-loaded cerous acyl sulfate as a core and uses palladium-loaded aluminum oxide as a shell, and a mass ratio of the shell to the core is 1: 3 to 1: 7. The preparation method of the catalyst comprises the following steps: firstly, mixing and kneading the zinc-loaded aluminum oxide and the molybdenum-loaded cerous acyl sulfate, conducting molding, and carrying out drying and roasting to obtain thecomposite oxide containing the zinc-loaded aluminum oxide and the molybdenum-loaded cerous acyl sulfate; and uniformly mixing a palladium-containing salt and aluminum hydroxide slurry, coating the composite oxide containing the zinc-loaded aluminum oxide and the molybdenum-loaded cerous acyl sulfate with the obtained mixed solution in the manners of spraying and soaking, and carrying out drying and roasting to obtain the catalyst for catalytic combustion of coal bed gas. The catalyst has the advantages of high activity, low reaction temperature, simple preparation method, low cost and the like when being used for deoxidizing the coal bed gas.

The invention provides a phase change heat storage light porous ceramic tile. The ceramic tile is prepared from, by weight, 50-80 parts of ceramic tile raw materials, 14-20 parts of diatomite, 10-30 parts of lignin, 2-4 parts of sodium tripolyphosphate, 7-13 parts of calcium carbonate, 6-10 parts of expanded perlite, 14-20 parts of paraffin and 6-10 parts of glass bead powder. The ceramic tile prepared according to the proportion of the raw materials and through the preparation method has high porosity and compressive strength and is low in weight and good in heat preservation effect; the compressive strength can reach 10 Mpa or above.