41results about How to "Fully smelted" patented technology

The invention provides a bath smelting method for waste. The bath smelting method comprises the steps that solid-liquid separation is conducted on the waste, and a solid waste part and a liquid waste part are obtained; the solid waste part is smelted in a bath smelting device, and a metal phase and smelting slag are obtained; the liquid waste part is atomized, the atomized liquid waste part is subjected to pyrolysis and combustion in the bath smelting device, then pyrolysis gas is obtained, and the atomized liquid waste part can replace at least part of smelting fuel. In the smelting method, the solid waste part and the liquid waste part are treated separately and can be more sufficiently smelted and burned by combining a liquid atomization mode. Meanwhile, the technical process of the method is short, and the advantages of low energy consumption and low cost are achieved. In addition, after the waste is treated according to the method, a product is free of secondary pollution and can be applied to other purposes, and thus the economic benefits can be increased.

The invention discloses a zinc metallurgy device and a zinc metallurgy technique. The zinc metallurgy device comprises a smelter hearth for melting zinc concentrate to smelt for ingoting; a blast furnace for melting the ingoting to lead zinc in the ingoting to become zinc vapor; and a condensation separating device, a stock gas inlet of which is connected with a stock outlet of the blast furnace;the condensation separating device accommodates liquid lead and receives zinc-containing stock gas from the blast furnace and captures zinc from the zinc-containing stock gas by the liquid lead as wellas leads the captured zinc to become liquid zinc floating above the liquid lead for separating lead and zinc. The zinc metallurgy device and zinc metallurgy technique provided by the invention reduce air and noise pollution, improve efficiency, reduce cost and investment, and effectively use resources and energy.

The invention discloses an automatic secondary aluminum smelting aluminum and iron separation device and relates to the technical field of secondary aluminum smelting. The automatic secondary aluminumsmelting aluminum and iron separation device comprises a smelting separation furnace and a separation device, wherein a stirring motor is mounted on the surface of the smelting separation furnace andan electric heating block is mounted in the smelting separation furnace. By arranging the smelting separation furnace and the separation device which communicate to each other, in a process of smelting aluminum waste to separate iron impurities, secondary aluminum is purified favorably by means of two-stage separation, so that the separation efficiency is improved. By arranging a stirring motor,aluminum waste can be fully and completely smelted by the smelting separation furnace under the stirring action. Meanwhile, by forming a filter hole, it is convenient to separate fully smelted moltenaluminum from the iron impurities and the molten aluminum flows into an auxiliary separation box along a separation channel for further separation treatment. By arranging the auxiliary separation box,the molten aluminum is cooled and condensed to a solid quickly by a method of injecting a cooling liquid and an electrolyte into the box, and micro impurities on the surface of the molten aluminum are separated out by the electrolyte for separation.

The invention discloses an automatic control device of a rotation type electric smelting magnesium furnace and an electrode current control method, and belongs to the technical field of electric smelting magnesium furnace process control. The device comprises a PLC (Programmable Logic Controller), an electric vibrator, a converter motor, a converter rotating and positioning limiting switch, a converter frequency changer, an electrode motor, an electrode frequency changer, a D / A conversion module, a weighing sensor, an electrode voltage and current signal collecting module an A / D conversion module and an upper computer monitoring system. The method comprises the steps that the three-phase current and the three-phase voltage flowing through a three-phase electrode of the electric smelting magnesium furnace are collected and converted into standard analog quantity current signals; the standard analog quantity current signals are converted into corresponding digital signals to be output to the PLC; and the current control over the electrode of the rotation type electric smelting magnesium furnace is finished in the PLC. According to the method, the functions of current collecting, controlling and the like of the three-phase electrode of the rotation type electric smelting magnesium furnace can be achieved, the error between the current of the three-phase electrode and the current set value is stabilized within the allowable error range, and electric energy consumption is reduced while the product quality is guaranteed.

The invention discloses top-blown smelting equipment, which includes a furnace body and a base, wherein a material feeding channel and an air outlet are arranged at the top of the furnace body; the base is mounted at the bottom end of the furnace body; a waste residue outlet and a product outlet are arranged on the base; a vent duct for ventilating the interior of the furnace body is arranged in the material feeding channel; and the base accommodates the material to be reacted and discharges the reaction product and waste residue. According to the top-blown smelting equipment of the invention embodiment, by ventilating the interior of the furnace body through the material feeding channel, the process for further forming a gas channel on the furnace body is omitted, the top-blown smelting equipment is simplified, and the ventilation can serve for blending the material when feeding the material through the material feeding channel, so as to accelerate the smelting reaction and enable the smelting reaction to be more sufficient.

The invention belongs to the technical field of slag reutilization and particularly relates to a process for reusing slag of an aluminum smelting furnace. The process adopts the smelting furnace. Thesmelting furnace comprises a box body and further comprises a crushing unit, material guide units, a smelting chamber, a motor, a collecting box, a first pipe, a purifying unit and a controller. By the adoption of the process, on the one hand, in the process of mixing the aluminum slag and an aqueous solution of a sintering machine, the aluminum slag and the aqueous solution of the sintering machine are fully mixed to form blanks while being added and stirred; meanwhile, spray nozzles are used to spray water mist to the blanks during the pressurization and plasticity of the blanks, so that theblanks are tightly attached, no fracture occurs between the blanks during sintering in the sintering furnace, and thus the quality of a refractory blank is improved; and on the other hand, the formedrefractory blank is installed on the inner wall of the smelting chamber to prevent the smelting furnace from being damaged when aluminum metal is smelted, so that the service life of the smelting chamber is prolonged.

The invention relates to a method for reducing and smelting aluminum ore by using carbon heat and the nonferrous metal smelting furnace of the smelting aluminum ore, which belongs to the technical field of the metal ore smelting. The method is characterized in that the pellet preparation comprises the steps that, coal gangue, bauxite and waste fiber are crushed and levigated; binding agent is prepared; the powder or the short grained coal gangue and the bauxite are mixed uniformly with the fiber micro-particle in proportion; the mixture is made into the pellet by the binding agent; the pellet and the coke are put into smelting furnace alternatively. The smelting furnace is composed of a multi-hole melting zone connected with an air inlet pipe, a high temperature resistant furnace lining, a cooling atomizing sleeve, a pair of heating electrodes inserted at both sides of the smelting furnace bottom towards the centre and a cracking water burning chamber. After the method is applied, the polluted environment with black soot all over the sky is changed, and the distressed scene that the metal bearing slag is thrown away everywhere and the resources are wasted can be stopped; thus the resources is saved and used fully, and the environment is protected.

The invention relates to a composite fuel fuming furnace reduction and volatilization smelting method and belongs to the technical field of thermometallurgy. The method comprises the steps that pulverized coal and natural gas are adopted as a composite fuel of reduction and volatilization smelting of a fuming furnace, the natural gas is sprayed into the fuming furnace through natural gas spray nozzles, the pulverized coal and primary air are blended in a pulverized coal fuel supply system and then sprayed into the fuming furnace through pulverized coal spray nozzles; and in the reduction and volatilization smelting process, the pulverized coal spray amount and the natural gas spray amount are regulated according to the situation of cold and hot materials of the fuming furnace. By adoptingthe reduction and volatilization smelting method, the temperature rising speed is high, the fuming furnace is flexible to operate, regulation is easy and convenient, the automation degree is high, andthe problems that supply of the pulverized coal or the fuel gas is interrupted and consequentially slag discharging of the fuming furnace is difficult can be effectively prevented; clean and long-period continuous production and operation can be achieved, reduction and volatilization reaction of the fuming furnace is more thorough, and matching with an upstream and downstream operation system isfacilitated; and the production efficiency is high, production control is stable, and stable and refined production control can be achieved easily.

The invention discloses bottom-blowing smelting equipment, which comprises a furnace body. A material inlet and a flue gas outlet are arranged at the upper part of the furnace body. A product outlet and a slag outlet are arranged on the side part of the furnace body. A vulcanizing agent steam passage and a reaction gas passage are arranged at the bottom of the furnace body to respectively feed vulcanizing agent and reaction gas into the furnace body. The bottom-blowing smelting equipment provided by the embodiment of the invention has the advantages that since the reaction materials are added into the furnace body from the top of the furnace body and the reaction gas and the vulcanizing agent are fed into the furnace body from the bottom of the furnace body, the reaction materials can be agitated, the smelting reaction is enabled to be more full and the consumption of energy for reaction is reduced.

The invention discloses an automatic furnace overturning machine long-distance wireless control system. The system comprises a mechanical furnace overturning device and a wireless long-distance control system, and the mechanical furnace overturning device is formed by four main parts including a left-right swing mechanism, an advancing / retreating mechanism, an up-and-down inclining mechanism and afurnace overturning stretching mechanism. By means of the system, the wireless long-distance control system controls operation of the four main mechanisms of the mechanical furnace overturning device, and therefore silicon smelting raw materials are evenly distributed around a smelting electrode, and the raw materials can be sufficiently smelted.

The invention discloses an aluminum-iron separation device for automatic melting of recycled aluminum and relates to the technical field of recycled aluminum smelting. The invention includes a smelting and separating furnace and a separating device, wherein a stirring motor is installed on the surface of the smelting and separating furnace, and an electric heating block is installed inside. In the present invention, by setting a smelting separation furnace and a separation device, and connecting the two with each other, the waste aluminum material is automatically melted and separated from iron impurities, and through two-stage separation, it is beneficial to the purification of recycled aluminum and improves the separation efficiency; by setting a stirring motor , the smelting and separation furnace can fully smelt the waste aluminum by using the stirring effect; at the same time, by setting the filter hole, it is convenient to separate the completely smelted aluminum liquid from the iron impurities, and flow into the auxiliary separation box along the separation channel for the next step One-step separation process; by setting up an auxiliary separation box, using the method of injecting coolant and electrolyte into the box, the aluminum liquid is rapidly cooled and condensed into a solid, and then the electrolyte is used to separate trace impurities on the surface to complete the separation.

The invention belongs to the technical field of metal smelting, and particularly relates to a metal smelting furnace. The metal smelting furnace comprises a box body, and further comprises a crushingunit, a material leading unit, a smelting chamber, a motor, a collecting box, a first pipe, a purification unit and a controller, wherein a crushing cylinder is driven by the motor to rotate, second crushing teeth are matched with spiral grooves to enable a rotating wheel to rotate, and the crushing cylinder and the second crushing teeth are matched to grind metal; and meanwhile, the collision among crushing balls is utilized to crush the metal, the gas generated by extruding an elliptical chamber is acted into a first gas cylinder, the second crushing teeth which are not meshed with the spiral grooves are rotated, first crushing teeth and the second crushing teeth are matched to crush the metal. The metal is crushed, smashed and crunched, the crushed metal can be fully smelted in a smelting chamber, and then the metal smelting effect is improved.

The invention provides a molten iron smelting additive and a preparation method thereof, and relates to the technical field of molten iron smelting. The molten iron smelting additive comprises nano-silica, silicon carbide powder and aluminum sesquioxide powder, wherein the particle size distribution of nano-silica powder is 30-100 nanometers; the particle size of at least 20 percent by mass or more of the silicon carbide powder is smaller than or equal to 80 nanometers; the particle size of at least 15 percent by mass or more of the aluminum sesquioxide powder is smaller than or equal to 80 nanometers; and the mass ratio of the nano-silica to the silicon carbide powder to the aluminum sesquioxide powder is 5 to 0.12 to 0.03. According to the molten iron smelting additive and the preparation method thereof provided by the invention, the additive is directly added into a smelting furnace for use, is gradually fused with molten iron into a whole in the smelting process, and is simple in practical method, the technological process is easy to control, the molten iron smelting speed can be effectively increased, and molten iron smelting is more sufficient.