38results about How to "Does not affect combustion" patented technology

The invention discloses a one-way priming device of a probing type rotation detonation engine. The one-way priming device comprises an installing base fixed to the outer wall of the rotation detonation engine, a pre-detonation pipe, a detonation pipe switching device, an installing base end cover and an elastic element, wherein the pre-detonation pipe penetrates through the installing base and is in sliding fit with the installing base, the detonation pipe switching device is used for connecting the pre-detonation pipe and an ignition pipe, the installing base end cover is arranged at the end of the installing base and limits the installing base in the sliding direction of the pre-detonation pipe, and the elastic element on the pre-detonation pipe exerts elastic force on the pre-detonation pipe in the sliding direction of the pre-detonation pipe. An opening for the pre-detonation pipe to stretch into is formed in an annular combustion chamber of the rotation detonation engine, and an opening communicated with the annular combustion chamber is formed in the side wall of the pre-detonation pipe. The rotation detonation wave engine can be detonated in one direction, and the rotating spreading situation of detonation waves in the combustion chamber in the normal working period of the engine is not affected. The restarting problem of the engine is solved, and all components are reasonable in design and high in reliability.

The invention relates to a catalytic cracking oxygen-lean regeneration denitration agent and a preparation method thereof, belonging to the field of catalytic cracking auxiliary agents. The catalytic cracking oxygen-lean regeneration denitrification agent of the present invention includes a carrier and an active component, and the carrier is active γ-Al 2 O 3 , the active components are noble metal compounds, metal compounds and rare earth element compounds; the catalytic cracking oxygen-lean regeneration denitrification agent includes the following raw materials by mass percentage: active γ-Al 2 O 3 70-90%, noble metal compound 1.5-5%, rare earth element compound 4-10%, metal compound 3-10%, phosphate 1.5-5%. The catalytic cracking oxygen-lean regeneration denitrification agent of the invention has high denitration rate; the use process is simple and easy to operate, does not produce secondary pollution, the flue gas can meet the emission standard, the economic benefit is high, and the CO component in the regenerator is not consumed at all, The safety is high; meanwhile, the present invention also provides a preparation method.

The invention discloses a fire coal dust suppressant and a preparation method thereof. The fire coal dust suppressant is prepared from isophorone diisocyanate or hexamethylene diisocyanate, polyether glycol of which the molecular weight is 1,000, polyether glycol of which the molecular weight is 2,000, diethylene glycol, epoxy resin E-51 or epoxy resin E-40 or epoxy resin E-20, 2,2-dimethylolpropionic acid, dibutyltin dilaurate T-12 or dibutyltin dilaurate T-9, triethylamine or quadrol and deionized water in a weight ratio through a reaction. The fire coal dust suppressant has the advantages of low production cost, environmental-friendly products, easy spraying, simple construction and good film-forming effect of fire coal surfaces.

The invention provides a loading and unloading system for a self-unloading bundled elevated torch, the torch includes a torch head and a torch cylinder composed of multiple sections of cylinders, and each section of the cylinder is respectively provided with a first end connection between the cylinders at both ends. A connecting element, the bottom of the flare head is provided with the first connecting element; its loading and unloading system includes a hoist, a tower, a rope and the flare and guide rails arranged on the side of the tower, and each section of the barrel of the flare includes a The support element that the guide rail is slidably connected; The hoist wherein comprises the hoist hoist that is used to lift every section cylinder body, and each section cylinder body includes the second connection element that is used to be connected with hoist hoist by rope; The present invention also provides a A method for loading and unloading the elevated torch by using the loading and unloading system, that is, loading and unloading the torch barrel and the torch head of the elevated torch in sections, thereby realizing the centralized bundling of multiple torches, and meeting the maintenance work of the faulty torch without affecting other torches combustion.

A method for recycling treatment and denitration of municipal domestic garbage with a dry rotary kiln comprises the following steps of pretreating and dividing the municipal domestic garbage into a combustible component material mainly comprising organic matters, and a residue component material mainly comprising inorganic matters, taking the combustible component material as fuel for a decomposing furnace of the dry rotary kiln to substitute fire coal and a hydrocarbon raw material for denitration, feeding the combustible component material to a space from the lower part to the middle upper part in the decomposing furnace with a feed device for treatment and denitration, and taking the residue component material subjected to chemical analysis as an alternative raw material for a batching flour mill of a raw material vertical mill system, wherein the combustible component material is in a bulk form, and is less than or equal to 200mm in side length and less than or equal to 30% in water content. With the adoption of the method for treating the municipal domestic garbage, the operation is simple, the coal consumption is low, the kiln performance stability is good, the combustion of pulverized coal in a production kiln and the furnace of the dry rotary kiln is unaffected, the treatment cost is low, and the pollution to the environmental is low.

The invention relates to the technical field of waste incineration power generation, and discloses a waste incinerator. The waste incinerator comprises a drying area, a main combustion area and a burnout area, wherein the main combustion area comprises a hearth, the hearth comprises a rear wall and two side walls which are connected with one another; the rear wall and the two side walls are all heat insulation furnace walls, new water cooling walls covered with the heat insulation furnace walls are arranged on the inner side walls of the heat insulation furnace walls; and the invention furtherdiscloses a construction method of the waste incinerator. According to the waste incinerator and the construction method, the problems that the furnace wall near the main combustion area of an existing waste incinerator is easy to coke is effectively solved.

The invention discloses a low-nitrogen combustion transformation method for a circulating fluidized bed boiler. The method comprises the following steps: simultaneously transforming a low-share primary air system (PAS), an accurate secondary air feeding system (SAS) and an over-bed combustor supplemented air system (SUBS); arranging a bell jar type air cap on an air distribution plate, and building a fire-resistant and wear-resistant material lug boss at the outermost circle of the air distribution plate; independently feeding secondary air (SA) according to a region, regulating the amount of the SA through a regional SA total flow control device and an independent SA accurate flow control device respectively, and arranging three or four layers of SA ports along the height direction of a dense-phase region of a hearth, wherein an air source is primary cold air (PAC), and the amount of over-bed combustor air (SUBA) accounts for 5-10 percent of the amount of total combustion air (TA). After transformation, the proportion of primary air to secondary air can be flexibly regulated, combustion air feeding can be accurately controlled, and low nitrogen oxide emission level and high combustion efficiency are realized finally. The boiler can operate, and the characteristic of environmental protection can be remarkably improved without additional equipment. The method has the advantages of low investment cost, short transformation period, no operation cost, stability in operation of the boiler and the like.

The invention discloses a method for restraining coal pile spontaneous ignition in a coal storage field, a special inhibitor of the method and a preparation method of the inhibitor. The method for restraining the coal pile spontaneous ignition comprises that a free oxygen control agent is mixed uniformly is an oxidation layer of a coal pile so as to restrain oxidation and spontaneous ignition of the coal pile. A free oxygen control agent, a stabilizing agent, an absorbing agent and an auxiliary agent are mixed uniformly to form the inhibitor; the inhibitor comprises 50 to 150 parts of the free oxygen control agent, 20 to 50 parts of the stabilizing agent, 5 to 10 parts of the absorbing agent and 10 to 20 parts of the auxiliary agent; and the free oxygen control agent comprises more than one of scrap iron, sodium hydrogensulfite, di methyl ketoxime, zinc powder and D-sodium ascorbate; the stabilizing agent comprises more than one of citric acid, tartaric acid and salicylic acid, and the auxiliary agent comprises more than one of sodium hydrogen carbonate, potassium bicarbonate, sodium carbonate, potassium carbonate, sodium chloride and potassium chloride. According to the restraining method and the inhibitor, the operation is simple and the effect is obvious.

The invention belongs to the technical field of prevention and controlling of unorganized emission of dust in storing and transporting processes of coal, and discloses a white dust suppressant and a preparation method and application thereof. The white dust suppressant is prepared by the following raw materials in parts by weight: 50-200 parts of polyether diol with molecular weight of 1000, 50-200 parts of polyether diol with molecular weight of 2000, 10-50 parts of epoxy resin E-40 or E-20, 25-100 parts of polyethylene glycol, 50-200 parts of titanium oxide, 25-100 parts of calcium carbonate or argil or diatomite, 5-10 parts of copolymer containing acid group, 2-20 parts of sodium tripolyphosphate or sodium metasilicate, 20-200 parts of propylene glycol methyl ether acetate or 2,2,4-trimethyl-1,3-amyl glycol monoisobutyrate, 5-30 parts of toluene diisocynate, 5-15 parts of N-methyldiethanolamine, 5-15 parts of organic solvent, and 200-500 parts of deionized water.