35results about How to "Promote complete combustion" patented technology

A method for maintaining wind speed by adjusting cross-sectional area of a nozzle belongs to the field for boiler. A primary air fan, an valve A, a preheater A, a coal grinding machine and a combustor A are fixed by pipes; a secondary air fan, a valve, B, a preheater B and a combustor B are fixed by pipes; the combustor B and the combustor A are fixed with a hearth furnace; the hearth furnace, a preheater C, a dust collector, a valve C, a fan and a chimney are fixed by pipes; a frame body and a nozzle, the frame body and a support are fixedly connected, and a pull rod and a blunt body are fixedly connected, and the support and the pull rod are in sliding connection; an outer frame and the upper and lower nozzles are connected by a rotating shaft; the upper and lower nozzles are fixed with the upper and lower pulling blocks; the upper and lower pulling blocks are connected with upper and lower connecting rods by the upper and lower shafts; a cylinder frame and the nozzle are connected, the cylinder frame and the support are connected, and a three-connecting is fixed with a blade and the pull rod; the cylinder frame and the blade are connected by the shaft; and the pull rod and the support are in sliding connection. The method adjusts nozzle cross-sectional area through change of distance between the bluff body and the nozzle outlet, adjusts overall nozzle cross-sectional area through the swing of the upper and lower nozzles, and regulates nozzle cross-sectional area through blade angle change driven by the three-connecting to keep the air speed at the nozzle unchanged, wherein one of the three adjustment modes is employed at one time. The method is applicable to boilers.

The invention provides a composition for improving fuel or coal quality. The composition, when applied to fuel or coal, can promote the complete combustion of the fuel or coal under an oxygen-enriched condition, so that the combustion efficiency of the fuel or coal is improved; and meanwhile, emission of NOX, SOX and the like is obviously reduced, so that the problem of haze is relieved.

The invention discloses a device and a method for cooling clinker by liquid oxygen and liquid nitrogen of a cement kiln. The device is characterized in that a high-temperature cooling region of a grate cooler of the cement kiln is provided with a liquid oxygen input connector, and a middle-temperature cooling region of the grate cooler is provided with a liquid nitrogen input connector. The method comprises the steps of adding liquid oxygen the volume of which is 1%-12% of the total volume of cooling air fed by an air blower of a high temperature section of the grate cooler of the cement kiln, and adding liquid nitrogen the volume of which is 1%-45% of the total volume of cooling air fed by an air blower of a middle temperature section of the grate cooler of the cement kiln. The device and the method provided by the invention have the advantages that the cooling rate of clinker is improved by inputting liquid oxygen, and high-temperature clinker is cooled suddenly, so that the decomposition of D3S at 1250 DEG C is prevented or alleviated, the crystallization of MgO is prevented or alleviated, and the stability of the clinker is improved; a C3S crystal is prevented from growing, and thus the grindability of clinker is improved; the C2S crystal transfer is effectively prevented or alleviated by introduced liquid nitrogen.

The invention relates to a natural gas oxygen-enriched burner with a glass kiln. Based on the normal natural gas burner, by adopting oxygen enrichment technology, the original larger air port is changed to a relatively smaller oxygen-enriched air port according to the oxygen content of the oxygen-enriched air so as to heighten the temperature of flame, reduce air displacement after combustion, promote heat utilization ratio and lower excess air coefficient.

The invention discloses a petroleum coke mixed burning process using a CFB boiler. The process comprises the steps that materials are mixed and prepared, and limestone powder is blown from four limestone powder pipelines to a stokehold to be mixed and stirred with petroleum coke through clap valves; a material bed is used for conveying the materials to a combustion chamber of the boiler, the bed temperature of the material bed is controlled to be 870-940 DEG C, and the bed pressure is controlled to be 3.5-5.5 kPa; sand is regularly added to the material bed; after the sand is added, the materials are fed into the combustion chamber for high-temperature combustion; and after the materials are combusted at high temperature in the combustion chamber, the solid waste is returned to the combustion chamber through a bed material returning device, the smoke after passing a rear smoke channel is separated from materials and then is returned to the combustion chamber through a recirculating machine, and the redundant gas is discharged through a chimney. According to the process, abrasion of the heated surface of the boiler is effectively reduced, the service life of the wear-resistant casting material in the boiler is prolonged, and the maintenance amount of the casting material is reduced; and the bottom slag amount of the boiler is reduced, and after a bottom slag system is properly transformed, the bottom slag system can normally run.

The invention provides an energy conservation and emission reduction fuel-saving device. The device comprises a barrel body. The two ends of the barrel body are provided with an inlet end and an outlet end correspondingly. A fuel inlet plug is mounted at the inlet end. A fuel outlet plug is mounted at the outlet end. The barrel body is provided with a cavity which is filled with catalyst particles. The two ends of the catalyst particles are fixed through a first grid close to the fuel inlet plug and a second grid close to the fuel outlet plug correspondingly. A first inner fuel pipe is arranged on the fuel inlet plug. A second inner fuel pipe is arranged on the fuel outlet plug. The extension sections of the first inner fuel pipe and the second inner fuel pipe both extend into the cavity. The energy conservation and emission reduction fuel-saving device is simple in structure. The catalyst particles are arranged in the barrel body to shatter and catalyze fuel, so that the fuel is burned completely, the fuel utilization rate is increased, and the purpose of fuel economization is achieved. The energy conservation and emission reduction fuel-saving device is simpler in structure. The service life of a whole fuel economizer cannot be affected by magnetization reaction. The high-temperature-resisting and anticorrosive barrel body and a high-temperature-resisting and anticorrosive oil seal are adopted, and the service life of the whole fuel economizer is further prolonged.