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32 results about "Ironwork" patented technology

Ironwork is any weapon, artwork, utensil or architectural feature made of iron especially used for decoration. There are two main types of ironwork: wrought iron and cast iron. While the use of iron dates as far back as 4000BC, it was the Hittites who first knew how to extract it (see iron ore) and develop weapons. Use of iron was mainly utilitarian until the Middle Ages, it became widely used for decoration in the period between the 16th and 19th century.

Instrument for measuring thickness of non-ferromagnetic material and surface coating of ironwork

The invention discloses an instrument for measuring the thickness of nonferrous magnetic materials and the thickness of a coating layer on the surface of ironworks, which comprises a probe, a measuring circuit and a reference iron plate, wherein, the probe is a strain transducer that is arranged on a base made of the nonferrous magnetic materials, a magnet is arranged on the strain transducer, the reference iron plate is arranged under feet of the base and used for pressing a measured substance between an iron plate and a bottom foot surface of the base during measurement, and the strain transducer is electrically connected with the measuring circuit. The thickness of the substance affects the attraction force between the magnet and the reference iron plate, and the thickness of the substance can be reflected through the strain transducer and the measuring circuit. The measuring instrument can be further used for measuring the thickness of the coating layer on the surface of the ironworks. As the clamping foot contact measurement such as with a caliber rule is not needed, the measuring instrument can be placed at any position, is not limited by substance area and shape, and can consequently realize the measurement of wall thickness of substances with large area and complex shapes.
Owner:王洋

Comprehensive recovery and utilization method of various waste waters in iron and steel plant

The invention discloses a method for comprehensively recycling various wastewaters of an ironworks, pertaining to the technical field of wastewater disposal. The process sequence is as follows: regional division is carried out according to the difference of positions of various working procedures of the ironworks and calculations of water quality and balance in water quantity are carried out by combining with drainage characteristics and water consumption characteristics of different working procedures; classification of treatment is carried out according to the result of the calculations. The method has the advantages of being capable of avoiding the defects and shortages of the traditional processing method and effectively improving the balance in water quantity and water quality of the ironworks, thereby realizing the 'zero' draining. The method is a novel technology for comprehensively recycling various wastewaters of the ironworks, particularly applicable to projects for comprehensively recycling various wastewaters of long-running large-scale integrated iron and steel works. The technology can not only be adopted to realize the 'zero' draining of various wastewaters of the ironworks, effectively protect water environment and save water resources, but also reduce the overall investment of the projects and the comprehensive running costs and realize comparatively good economic and social benefits.
Owner:BEIJING SHOUGANG INT ENG TECH

Screening equipment for ironware in decoration garbage

The invention relates to the technical field of screening, in particular to screening equipment for ironware in decoration garbage. The screening equipment comprises a stock bin, first grinding plates, second grinding plates, a crushing cutter and a main shaft, wherein the main shaft is rotatably arranged in the stock bin, the first grinding plates and the second grinding plates are sequentially and alternately connected end to end in a hinged mode to form a grinding and crushing wheel coaxial with the main shaft, the grinding and crushing wheel is driven by the main shaft to rotate, in the rotating direction of the grinding and crushing wheel, the rear ends of the first grinding plates and the rear ends of the second grinding plates interact with the inner wall of the stock bin to crush raw materials, a plurality of crushing cutters are arranged, each crushing cutter is rotatably installed on one first grinding plate and is attached to the first grinding plate when the grinding and crushing wheel works normally,s and when the rear end of the second grinding plates are extruded by the raw materials to rotate inwards, the crushing cutters are driven by a connecting rod transmission assembly to rotate by a preset angle relative to the first grinding plates, so that the crushing cutters crush the raw materials at the position when rotating along with the first grinding plates, and the crushed raw materials are sieved by a screen to obtain ironware in the decoration garbage.
Owner:SUZHOU CONSTR MATERIAL RECYCLING APPL

Method for extracting zinc oxide from iron-smelting blast furnace fly ash

The invention discloses a method for extracting zinc oxide from iron-smelting blast furnace fly ash. Compared with the commonly used rotary furnace process at present, the method has the following advantages that 1, the used fly ash index is wide: the iron content required by the fly ash used by the rotary furnace process is below 20% and the zinc content is above 20%, and iron content required by the fly ash used by the method is not limited and the zinc content is above 6%; 2, fuel addition is not required: 0.45 ton of anthracite or 0.35 ton of coke powder is required to be added in each ton of fly ash in the rotary furnace, and the method does not require fuel addition; 3, the operation cycle is long: the operation cycle of the rotary furnace is 60 days and the operation period of the enclosed furnace in the method is longer than one year; 4, the fireproof material in the furnace is low in cost: the high-temperature wear-resistant fireproof brick used by the rotary furnace costs ** yuan per ton, and the common fireproof brick used in the enclosed furnace costs ** yuan per ton; and 5, the tailing recycle is convenient: the tailings of the rotary furnace process flow out in a liquid state and need to be continuously cooled by water, and contain less iron so that the value in use is low, and the tailings in the method are discharged in a solid state, the tailings with iron content higher than 50% can be directly used in ironworks and the tailings with iron content lower than 50% can be used in cement plants.
Owner:王全生

A method for extracting zinc oxide from ironmaking blast furnace dust

The invention discloses a method for extracting zinc oxide from iron-smelting blast furnace fly ash. Compared with the commonly used rotary furnace process at present, the method has the following advantages that 1, the used fly ash index is wide: the iron content required by the fly ash used by the rotary furnace process is below 20% and the zinc content is above 20%, and iron content required by the fly ash used by the method is not limited and the zinc content is above 6%; 2, fuel addition is not required: 0.45 ton of anthracite or 0.35 ton of coke powder is required to be added in each ton of fly ash in the rotary furnace, and the method does not require fuel addition; 3, the operation cycle is long: the operation cycle of the rotary furnace is 60 days and the operation period of the enclosed furnace in the method is longer than one year; 4, the fireproof material in the furnace is low in cost: the high-temperature wear-resistant fireproof brick used by the rotary furnace costs ** yuan per ton, and the common fireproof brick used in the enclosed furnace costs ** yuan per ton; and 5, the tailing recycle is convenient: the tailings of the rotary furnace process flow out in a liquid state and need to be continuously cooled by water, and contain less iron so that the value in use is low, and the tailings in the method are discharged in a solid state, the tailings with iron content higher than 50% can be directly used in ironworks and the tailings with iron content lower than 50% can be used in cement plants.
Owner:王全生

Absorption and water solution flushing and purifying ventilator for chimneys, workshops, shaft pollution and intersection tail gas

InactiveCN106731353AEliminate infectious diseasesPractical appearanceGas treatmentUsing liquid separation agentFertilizer plantOxygen
The invention relates to environmental protection equipment, and provides an absorption and water solution flushing and purifying ventilator for chimneys, workshops, shaft pollution and intersection tail gas, comprising a shed-shaped suction hood, wherein a plurality of vertical column type suction machines are arranged in the suction hood, a plurality of suction fans are arranged on the suction machines, the suction machines are connected with waste gas channels at the top, the waste gas channels laterally expand for laterally communicating the suction machines with each other, the tail ends of the waste gas channels are communicated with a purification tank; the purification tank contains a purification solution at the bottom, a waste gas storage cavity is arranged above the purification solution, a plurality of spraying layers are arranged above in sequence, and the purification solution is sprayed from top to bottom through a spraying machine. The ventilator can be arranged in various ironworks, fertilizer plants, cement plants, power plants and large-scale manufacturing and installation workshops for eliminating pollutant dust and noxious gas; and because 80% of carbon compounds, 60% of carbon monoxide and 30% of compounds of nitrogen and oxygen are from the automotive tail gas, the ventilator can be safely and flexibly used in intersections in the wind and rain.
Owner:孙田梓 +1

Method for improving internal quality of continuous casting and submerged nozzle for implementing method

The invention relates to a method for improving the internal quality of a continuous casting and a submerged nozzle for implementing the method. The submerged nozzle mainly comprises a long-barrel flat annular body submerged nozzle body with the bottom sealed, two arc surfaces at the upper end of the bottom of the nozzle are provided with symmetrical side holes; the two opposite side surfaces and hollow surfaces respectively arranged at the periphery are connected in a closing way to form an integrated feeding guide pipe; each hollow surface is inclined downward and extends while a certain distance is kept with each side surface of the nozzle body, thus all the feeding guide pipe are communicated at the bottom and form an exit section at the bottom of the nozzle body. In a continuous casting process, granular or bead-like, piece-like and strap-like part steel or iron product is continuously fed from the feeding guide pipes of the submerged nozzle and creeps down to the center of a molten pool of a crystallizer, degree of superheat of molten steel can be reduced, the cooling speed at the center is increased, formation of a central isometric crystal is promoted, enrichment and segregation of solute element at the center of a cast blank are prevented, solidification structure at the center of the cast blank is effectively optimized, and the density at the center of the cast blank is strengthened.
Owner:WISDRI ENG & RES INC LTD

Method for separating ilmenite with low energy consumption from tailings of iron concentrator

The invention discloses a low-energy-consumption method for separating ilmenites from tailings in an iron choosing plant. The method comprises the following steps: firstly, by taking the tailings in the iron choosing plant as raw materials, separating the tailings by using a permanent magnet drum-type mediate-intensity magnetic separator; discharging non-magnetic materials directly taken as magnetic separation tailings; next, grinding mediate magnetic separation concentrates taken as magnetic materials under the conditions that the monomer separation of the ilmenites is effectively realized while the grinding concentrates, the fineness of which is controlled as -75mu m, account for 75% to 95%; performing low-intensity magnetic separation on the mediate magnetic separation concentrates by using a low-intensity magnetic separator so as to separate iron concentrates and lead the rest of mineral materials to enter the next step; performing rough separation on the rest of mineral materials and then performing fine separation on the concentrates for multiple times after the rough separation so as to obtain ilmenite concentrates; performing sweeping separation on the tailings after the rough separation; combining the useful mineral materials for multiple times after the sweeping separation; returning the tailings after the fine separation into a rough separation process; and finally discharging the tailings which are subjected to the sweeping separation are taken as the ilmenites. The method is simple in process, reasonable in magnetic path design, uniform in magnetic field distribution, high in metal recovery rate and good in separation quality.
Owner:CHANGSHA RES INST OF MINING & METALLURGY
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