45results about How to "Save coal resources" patented technology

An equipment for recovering and utilizing the heat energy generated by burning yellow phosphorus and a system for preparing phosphoric acid by the hot method are disclosed. It is composed of steam manifold and burning tower with heat energy recovering function. The burning tower consists of ring-shaped membrane heat exchanger with fins, heat-insulaitng enclosed casing, P2O5 gas outlet tube, connecting tube of phosphorus sprayer, etc.. Its advantages include low consumption of coal, water and energy, low cost and reduced environmental pollution.

The invention discloses an energy consumption difference analysis method for load varying of an ultra-supercritical generating unit of a thermal power plant. The method comprises the steps of selecting eighteen operation parameters having a greater influence on the economy of the unit as analysis objects; applying a clustering method to the eighteen operation parameters to obtain an operation optimum condition: taking the operation optimum condition as a stable operation standard working condition, and selecting eighteen actual working conditions from a load varying range; taking eighteen parameter influencing factors as independent variables: establishing eighteen equations by taking the energy consumption difference between a single influencing parameter change value and a stable operation standard value as a coefficient of the parameter influencing factor and taking the energy consumption difference between an actual working condition and the stable operation standard working condition as a dependent variable, and finally solving to obtain eighteen parameter influencing factors; finally sequencing the eighteen parameter influencing factors to obtain a parameter having the greatest influence on the coal consumption level in a load varying process. Guidance basis is provided for determination of load varying velocity, load varying amplitude and stable stage time in the load varying operation of million of units, so that the aim of reducing the coal consumption in electricity generation in the load varying operation of the power plant is achieved.

A method for conducting melting reduction on dust removal pulverized coal through COREX includes the specific steps of firstly, distributing the dust removal pulverized coal into anthraciferous coal, smashing the dust removal pulverized coal, and using the smashed dust removal pulverized coal for blast furnace coal injection; secondly, adding the mixture of the dust removal pulverized coal and the anthraciferous coal into a coal mill to be sufficiently levigated; thirdly, conveying the levigated pulverized coal to a cyclone separator through a pneumatic conveying pipeline, making the levigated pulverized coal enter a pulverized coal bin and then enter an intermediate tank and an injection tank, and injecting the pulverized coal into a blast furnace through an injection pulverized coal gun. The dust removal pulverized coal is innovatively used for the blast furnace coal injection process, utilization of the dust removal pulverized coal used for melting reduction has higher value, and new cost saving possible is provided for melting reduction production enterprises on the aspect of dust removal pulverized coal utilization.

The invention discloses a flow guiding awl type pure smokeless vertical hot water boiler, which is characterized by the following: comprising container, boiler pipe group and burning device; arranging condensed high temperature smoke outlet at the top of the burning furnace bed; arranging twice burning furnace bed at the upper of the high smoke outlet; displaying round for the lateral section of the twice burning furnace bed; corresponding to high temperature gas outlet; arranging guiding awl in the twice burning furnace bed; constructing the guiding awl with high temperature smoke guiding flow plate and top lid of the guiding flow plate; arranging twice combustion tuyere on the twice burning furnace bed; corresponding to tangent direction of the twice burning furnace bed of the round lateral section; consisting with the gas flow guiding direction of the high temperature smoke guiding flow plate; arranging high temperature gas outlet on the top of the twice burning furnace bed; communicating the outlet of the high temperature gas to hog gas cavity. This invention possesses reasonable structure and high hot efficiency, which can protect environment.

The invention discloses an unpowered layered and lined coal feeding device of a chain grate boiler. The unpowered layered and lined coal feeding device comprises a layered grating, lined baffles and fixing and adjusting mechanisms thereof, wherein the layered grating is divided into a dense rod area, a sparse rod area and a rodless area from top to bottom; the lined baffles are arranged under the dense rod area of the layered grating; the layered grating is obliquely arranged and has a low front part and a high rear part; the lined baffles are obliquely arranged and has a high front part and a low rear part; the layered grating and the lined baffles are respectively provided with the adjusting mechanism with an adjustable oblique angle; and the layered grating and the lined baffles are arranged between the front end of a grate of the boiler and an outlet of a coal bin, and are respectively provided with a fixing mechanism with an adjustable installing height. The unpowered layered and lined coal feeding device has the advantages that external power and a transmission mechanism are not needed, the structure is simple, the operation and the adjustment are simple and convenient, the fault rate and the maintenance cost are low, the adaptability of the boiler to the quality, the water content and the granularity of coal are improved, the burning efficiency is high, the energy consumption is low, the safety of the coal bin of the boiler is improved and the coal resource is greatly saved.

The present invention relates to a single-cyclone coal-burning equipment. It includes combustion furnace cavity, fire grate, coal-adding device and high-temperature gas outlet. It is characterized by that the top portion of its furnace cavity cross-section is made into the arched form capable of forming cyclone combustion, the side wall of said furnace cavity is equipped with a combustion-supporting air inlet communicated with the furnace cavity, said combustion-supporting air inlet is tangential to said arched form of top portion of furnace cavity, the rear portion of said furnace cavity, is connected with high-temperature gas outlet. Said invention is simple in structure, and can completely solve the problem of discharging black smoke by burning coal, and can save fuel coal.