44results about How to "Not prone to spontaneous combustion" patented technology

The invention discloses a layered part premixing low-pollution combustor of main combustion level premixing and pre-evaporation. The layered part premixing low-pollution combustor has a pre-heating function. Fuel oil is divided into a main combustion level and an on-duty level. Diffusive combustion is adopted by the on-duty level, lean oil premixed combustion is adopted by the main combustion level, and the premixed combustion of a layered part is achieved through coupling of the diffusive combustion and the lean oil premixed combustion. The on-duty level is composed of a centrifugal atomizing nozzle and first level rotational flow air. The fuel oil of the main combustion level is supplied through multi-point direct-injection type nozzles, and oil and air mixing is enhanced through preheating of second level rotational flow air by combination of transverse jet air and on-duty level flame. The on-duty level is used in part-load conditions such as starting and slow operation, a stable combustion range can be broadened, combustion efficiency can be improved, and emission of CO and UHC is lowered; the on-duty level and the main combustion level work at the same time in the heavy load working condition, the on-duty level provides stable ignition sources for the main combustion level, a main combustion area is in a lean oil state, the temperature is far lower than the adiabatic flame temperature, and emission of NOx of high-load conditions can be reduced remarkably.

The invention relates to an efficient drying and quality-improving device and method for brown coal. In the prior art, no efficient drying and quality-improving device or method for brown coal, which is used for improving the utilization value of the brown coal, exists. The efficient drying and quality-improving device is characterized by comprising a coal storage bin, a fuel bin, a hot blast stove, a cylinder-type dryer, a product bin, a cyclone dust collector, an electrical dust collector and a plurality of pipelines, wherein both the product bin and the coal storage bin are connected with the cylinder-type dryer; the cylinder-type dryer is connected with the cyclone dust collector; and the cyclone dust collector, the electrical dust collector, the fuel bin are all connected with the hot blast stove. The method is characterized in that the raw material of the brown coal is conveyed into the cylinder-type dryer from the coal storage bin; the hot blast stove generates high-temperature flue gas at the temperature of 700-900 DEG C, and the flue gas is conveyed into the cylinder-type dryer; the raw material of the brown coal is dried by the high-temperature flue gas and conveyed into the product bin from the cylinder-type dryer for sealing and cooling, so that the finished product of the brown coal is obtained after cooling. According to the device and the method, the moisture in the brown coal can be reduced substantially, and a part of ash content in the brown coal can also be reduced, so that the utilization value of the brown coal can be improved.

The invention provides a methanation catalyst, a preparation method and application thereof. Specifically, the method includes: contacting nickel aluminum alloy and alkali in water. The method for preparation of the methanation catalyst consumes low alkali, and the catalyst prepared by the preparation method provided by the invention has the characteristics of difficult spontaneous combustion, high mechanical strength, and good low-temperature methanation performance, is suitable for removal of trace carbon oxides from hydrogen under low temperature, and especially has high activity and high selectivity to carbon dioxide methanation reaction in carbon oxides.

The invention discloses a boundary coal shortwall continuously-mining tunnel arrangement and coal pillar preserving methods, according to three typical overlying rock structures, three coal pillar arrangement methods are proposed, and the three coal pillar arrangement methods are respectively a block section wide coal pillar arrangement method, a block section narrow coal pillar arrangement method and a block section non coal pillar arrangement method. Compared with the traditional shortwall continuously-mining tunnel technique tunnel arrangement and coal pillar preserving methods, by the boundary coal shortwall continuously-mining tunnel arrangement and coal pillar preserving methods, the coal pillar size is reduced, the recovery rate of resources can be improved, the roof essential security can be realized, roof safety can be effectively controlled, tunnel excavation and maintenance amount can be reduced, and the risk of coal spontaneous combustion can be reduced.

The invention relates to the field of flame retardants, in particular to a modified aluminum hypophosphate flame retardant. A preparation method of the modified aluminum hypophosphate flame retardantcomprises the following steps: 1) adding aluminum hypophosphate and a dispersing agent in a reaction kettle and fully stirring, so that a solution is uniformly dispersed; 2) adding an adhesive and a modifying agent, raising the temperature, stirring and fully reacting to obtain a crude product; and 3) washing, filtering and drying the crude product to obtain the modified aluminum hypophosphate flame retardant. The modified aluminum hypophosphate flame retardant prepared by the preparation method provided by the invention can effectively solve the problems of low aluminum hypophosphate heat resistance, low compatibility, low dispersing performance and the like.

The invention discloses an integral process and a device for crushing, drying, forming and upgrading lignite containing moisture. The lignite with 20-50% of moisture and less than 100mm of granularity is sent into an integral crushing-drying device. The integral crushing-drying device crushes the lignite to have the granularity of less than 3mm, and high-temperature smoke produced by a smoke system is sent into the integral crushing-drying device at high speed to enable the crushed fine lignite particles and lignite power to be dried from bottom to top. Dried fine lignite particles and dried lignite power are driven by the high-speed high-temperature smoke to enter a cyclone separator to be separated. Separated fine lignite particles and separated lignite power enter a prepressing helical device from the position under the cyclone separator, and the lignite materials are prepressed and then enter a high pressure forming machine to be pressed and formed into finished lignite products. The device mainly comprises the smoke system, the integral crushing-drying device, the cyclone separator, the prepressing helical device and the high pressure forming machine. The integral process and the device for crushing, drying, forming and upgrading the lignite containing moisture is low in investment operating cost, high in upgrading efficiency and good in upgrading quality.

The invention discloses a halogen-free flame-retardant temperature-resistant polyolefin pyrocondensation material and a preparation scheme thereof. The material is prepared from, by weight, 20-100 parts of linear low-density polyethylene, 10-80 parts of vinyl copolymer, 0.5-5 parts of sensitizer, 5-20 parts of silicone flame retardant, 5-50 parts of inorganic flame retardant, 5-40 parts of phosphorus-nitrogen containing flame retardant, 1-5 parts of antioxidant, 1-5 parts of light stabilizer and 1-20 parts of smoke restraining agent. The halogen-free flame-retardant temperature-resistant polyolefin pyrocondensation material obtained through the preparation method can reach the high temperature resistant level of 150 DEG C or higher, is good in combustion resistant effect, can not release harmful gas, is not prone to spontaneous combustion, reduces potential safety hazards, is low in cost and high in cost performance, and can be widely applied to the fields of locomotives, aviation, electrons, ships, nuclear power, the war industry and the like.

The invention provides an organic additive for neodymium iron boron magnet manufacturing. The additive is characterized by comprising, by mass percentage, 0.1-50% of ester matter, 0.1-25% of liquid paraffin, 0.05-10% of polybutylene, 0.01-5% of coupling agents and the balance varsol. The invention provides a method for manufacturing a neodymium iron boron magnet. The method includes the following steps that neodymium iron boron ultra-fine powder is mixed with the organic additive to obtain a neodymium iron boron ultra-fine powder mixture, and then the obtained neodymium iron boron ultra-fine powder mixture and neodymium iron boron powder are sintered to obtain the neodymium iron boron magnet. According to the method for manufacturing the neodymium iron boron magnet, the prepared organic additive and the neodymium iron boron ultra-fine powder are added into the sintering process of the magnet so that the ultra-fine powder can be effectively used; besides, the ultra-fine powder is not prone to spontaneous combustion and agglomeration in the production process, and safety hidden hazards are reduced, and production cost is lowered.

The invention relates to the field of waste rubber regeneration technology, in particular to a mechanical device for cooling and drying desulfurated rubber powder. The mechanical device comprises a rotary drum and a driving mechanism for driving the rotary drum to rotate, wherein the rotary drum is internally provided with a spiral guide plate; furthermore, the device also comprises a conveying mechanism which is connected with a cooling rotary drum and used for conveying the rubber powder to the feeding end of the cooling rotary drum, and a flue gas collection and air supply mechanism that isprovided with a cooler on a pipeline provided with a blast blower, wherein two ends of the pipeline are respectively provided with a smoke absorbing hole arranged at the feeding end of the rotary drum and an air blowing hole positioned at the discharge end of the rotary drum, and the air flow of the smoke absorbing hole and the air blowing hole can be communicated in a circulating air flow channel by the pipeline and the rotary drum. The device solves the problem in the prior art, so that after being output from a tank, the high temperature rubber powder can be rapidly cooled through a cooling air supply system, thus being difficult to generate thermal oxidation reaction and more difficult to combust spontaneously. Therefore, the device saves the work place for cooling the rubber powder and reduces the pollution for the atmosphere.

The invention discloses a new energy charging pile with an anti-spontaneous-combustion interface, and belongs to the field of new energy charging piles. The new energy charging pile with the anti-spontaneous-combustion interface can realize the effects that when a new energy automobile is charged by using a charging pile, excessive heat accumulation of a storage battery due to long-time charging of the storage battery is not liable to occur, the storage battery of the new energy automobile is not prone to spontaneous combustion, serious threats to life and property safety of a new energy automobile owner are not prone to being caused, meanwhile, through the Internet of Things technology, charging records of the new energy automobile are synchronized to processing terminals of different charging fields, charging services for different automobile owners are perfected through shared charging data, meanwhile, related information of automobile charging can be sent to a user mobile terminalthrough an Internet of Things module, a health report of an automobile charging port is sent to the automobile owner in time, the automobile owner is reminded to check the automobile in time when thecharging pile interface is frequently disconnected due to overheating, and potential safety hazards are eliminated.

The invention relates to a fuel oil composition, which is mainly prepared from the following raw materials in weight ratio: methanol 50-100; ethanol 5-10; potassium oxide 0.3-1.5 and sodium oxide 0.5-5; ethyl fat 6-15; Iron 0.7-2; rapeseed oil 2-8; stabilizer 5-7 and water 10-20, the production method is: fully dissolve potassium oxide and sodium oxide with water to form a solution, add ethyl fat and ethanol to mix, and set aside ; Ferrocene dissolved in methanol, ready to use; rapeseed oil, stabilizer and water fully mixed, that is, the finished product. The product of the invention is used as boiler fuel, has high calorific value, sufficient combustion, is stable at room temperature, is not easy to spontaneously combust, and the waste gas emission after combustion is more than 80% lower than that of petroleum liquefied gas, has obvious environmental protection effect, and is easy to store and transport. Ordinary plastic barrels Ready to store. The raw materials are simple and extensive, easy to purchase, low in cost, simple in manufacturing process and convenient for market promotion.

The invention relates to industrial automation production equipment and a production method which are used for lignite-drying and quality-improving moulding. The industrial automation production equipment mainly comprises a belt deironing conveyor, a belt conveyor, a coarse grinding machine, a classifying screen, a hoisting machine, main equipment 1-3-stage fine drying machine, a wet-type separating and aggregating device and a dust-removing purifying chamber, wherein a fine lignite dry powder storage silo and a moulding machine are successively arranged and connected in a technological process; and the lignite is converted into briquette, wherein the original all water of lignite is reduced to less than 10wt% from less than 65wt% by virtue of the 1-3-stage fine drying machine, hydrophilicity which is smooth outside and coarse inside and is compact outside and loose inside is changed into hydrophobicity, and surface property is converted into the property similar to excellent bituminite. The equipment provided by the invention has unique and novel structure, high drying efficiency and low cost; a product is difficult to absorb water, spontaneous combustion and heat value are greatly improved, and the problems of weathering, spontaneous combustion, transportation, storage, great investment and high cost are comprehensively solved. The equipment and method provided by the invention can be widely applied to lignite dehydration moulding in power plants at home and aboard and other boilers, and the equipment provided by the invention is dehydration drying and quality improving technical equipment of a new generation.

The invention provides a method and a device for passivating, cooling, destructively distilling and pyrolyzing anthracite coal. According to the method provided by the invention, medium-temperature passivated anthracite coal is initiatively subjected to temperature-raising passivation and the content of combustible gas and volatile matters in micro-pores of the anthracite coal can be reduced to the greatest extent; spontaneous combustion of the anthracite coal is avoided and the anthracite coal can be stored for a long period; moreover, the moisture content of the anthracite coal prepared by the method is maintained in a range of 4 weight percent to 5.5 weight percent and is less than 6 weight percent to 12 weight percent in the prior art, so that weathering, cracking and spontaneous combustion of the anthracite coal are avoided; an effective heating mount of the anthracite coal is kept and the transportation amount of the anthracite coal is alleviated; meanwhile, the temperature of the passivated and cooled anthracite coal can be kept in a range of 25 DEG C to 45 DEG C after the method provided by the invention is used, so that the extreme temperature 60 DEG C of a coal pile of the anthracite coal is avoided and the spontaneous combustion of the anthracite coal can be further avoided.

The invention discloses a preparation method of a black phosphorus treated copper-based catalyst and application of the black phosphorus treated copper-based catalyst in a reaction for synthesizing methyl chlorosilane by a direct method. According to the invention, a black phosphorus precursor is added into a copper-based catalyst, and a new species phosphide is introduced through the phosphating effect of black phosphorus on the surface of a copper species. The activity test result shows that the formation of the species can effectively improve the selectivity and yield of the target product dimethyl dichlorosilane. The treatment mode is simple to operate, wastewater difficult to treat is not generated in the preparation process, the method is very suitable for large-scale preparation of industrial catalysts, and good economic benefits can be generated. In addition, the black phosphorus crystal is stable, is not prone to spontaneous combustion, is suitable for large-scale industrial application, and can greatly improve the safety of enterprise production.

The invention discloses an ABS material for packaging and a preparation method thereof, and relates to the technical field of ABS materials. The material comprises the following components in parts byweight: 45-55 parts of an acrylonitrile-butadiene-styrene copolymer, 20-24 parts of vinyl acetate, 10-12 parts of ethylene, 3-5 parts of 1,2-bis(pentabromophenyl) ethane, 4-6 parts of glass fiber, 7-9 parts of magnesium hydroxide, 12-18 parts of tackifying resin, 6-10 parts of mullite powder, 5-7 parts of white carbon black, and 3-8 parts of a mixed solution. The ABS material of the scheme has excellent flame retardant properties and high-temperature resistance.

The invention discloses a synthesis method for 2, 4-dichloro-5-isopropoxyaniline. The method comprises the following steps: feeding an auxiliary agent and a catalyst into a reaction kettle, so as to obtain first mixed liquor; feeding an organic solvent and an original compound into the first mixed liquor, and feeding hydrogen into the reaction kettle, so as to ensure that the original compound performs reduction reaction in the condition of the existence of the organic solvent, the auxiliary agent and the catalyst and obtain a reaction product; removing the catalyst and solvent of the reactionproduct, so as to obtain the 2, 4-dichloro-5-isopropoxyaniline. The catalyst adopts a nano-catalyst. The method simplifies synthesis steps of the 2, 4-dichloro-5-isopropoxyaniline, reduces the cost and the recycling difficulty of the catalyst, and meanwhile avoids ricks in traditional technical processes.

The invention discloses a thermoplastic elastomer material and a preparation method thereof, and relates to the technical field of thermoplastic elastomers, the thermoplastic elastomer material comprises a main body, the outer surface of the upper end of the main body is provided with a flame retardant coating, the lower end of the main body is provided with an anti-static mechanism, and the lower end of the anti-static mechanism is provided with a protection device. Under the combined action of the colloid, the liquid flame retardant, the solid flame retardant, the accelerant and the styrene coating, the thermoplastic elastomer can have good flame retardance and elasticity, and the liquid flame retardant and the solid flame retardant are added to the surface of the elastomer material, so that the thermoplastic elastomer is not prone to spontaneous combustion; under the combined action of the carbon black coating, the chopped conductive fiber coating, the conductive mica powder coating, the thin film and the polyurethane coating, the antistatic capacity of the elastomer material can be improved, the arranged chopped conductive fiber coating contains carbon fibers and metal fibers, and the carbon fibers and the metal fibers have very low body resistance and are generally presented in a network line shape, so that the antistatic performance of the elastomer material is improved. Therefore, the current is not easy to pass through the elastomer material.

The invention discloses a rapid powder transferring device for an adjacent furnace of a power station boiler and a using method thereof, and belongs to the technical field of thermal power generation.The rapid powder transferring device comprises a first furnace powder bin, a second furnace powder bin and a pair of powder pumping branch pipes, and a plurality of lower powder outlet pipes which are uniformly distributed communicate between the first furnace powder bin as well as the second furnace powder bin and the pair of powder pumping branch pipes; arc-shaped through holes are formed in the right ends of the lower powder outlet pipes, movable sealing plates are inserted in the lower powder outlet pipes, and the movable sealing plates comprise plugging parts and sealing parts; the plugging parts and the sealing parts are integrally formed, the plugging parts are matched with the lower powder outlet pipes, the sealing parts are matched with the arc-shaped through holes, synchronous frames are arranged on the lower sides of the first furnace powder bin and the second furnace powder bin, and a pair of coaxial connecting rods are fixedly connected between the plurality of movable sealing plates and the inner walls of the synchronous frames; and thus, communication and blocking of the powder pumping branch pipes and the lower powder outlet pipes can be rapidly realized, the timefor mounting and dismounting a plugging blind plate is saved, and the powder transferring efficiency is improved.

The invention provides a fireproof household wiring harness. The fireproof household wiring harness comprises a wiring fixing device and a plurality of cables which penetrate through the wiring fixingdevice and are elastically connected with the wiring fixing device, the wiring fixing devices are arranged at intervals along the length direction of the plurality of cables, and the wiring fixing devices are insulators; wherein each cable is provided with a first elastic piece of which one end is connected with the adjacent cable, and the first elastic piece is an insulator; the wiring fixing device comprises a buffer layer in sliding connection with a plurality of cables, a connecting piece is fixed on the buffer layer, and the connecting piece is in sliding connection with the buffer layer. The connecting piece is an elastic connecting piece; a sliding groove is formed in the surface, close to the cable, of the buffer layer in a sunken mode, and the end, away from the cable, of the connecting piece is slidably connected into the sliding groove. The technical problem that when one electric wire is on fire, the other electric wire close to the electric wire is ignited, so that the whole cable bundle is further ignited, and the whole cable bundle is ignited is solved.