41results about How to "Solve the temperature drop" patented technology

A method for tempering high temperature slag and a mineral cotton production method belong to the metallurgical technical field of steel, ferronickel, ferromanganese, copper and the like. A tempering process is carried out by spraying coal ash, dolomite, aluminum ash and the like by using a heat-resistant spray gun, and the mixture is heated by using a heating agent in an oxygen blowing manner; moreover, by virtue of a sufficient condition of pouring hot slag into a slag tank in kinetics, the used equipment comprises a powder spraying system and an oxygen supply system. According to the components of the hot slag, a corresponding tempering agent is sprayed into the slag and the heating agents such as aluminum ash and the like are added to be in reaction with oxygen; the tempering agent is prompted to be fully mixed with the slag by virtue of flowability of the hot slag pouring into the slag tank so as to quickly form a silicate system; the heating agents are added, so that the slag temperature is not reduced, and a slag tank cover further covers the tank, so that the heat loss is reduced. Thereofe, the component is tempered into the slag blowing slag wool, the temperature of which is proper, and the viscosity is 1-3Pa.s. The problem that the slag is hardly mixed with the tempering agent and a temperature drop happens is solved. A melting furnace (an electric furnace) is not needed for secondary heating, so that the method has a relatively high economical benefit. The slag tank with a top cover is conveyed to a mineral cotton workshop and a travelling crane conveys the slag tank to a pouring site. Then, the slag tank is overturned by using a winch, and a slag fluid in a fixed quantity is controlled to enter a closed and heated blowing tank from an upper opening of the slag tank. The slag fluid in the fixed quantity enters the closed and heated blowing tank from the upper opening of the slag tank, so that the problem that in production of mineral cotton, the slag fluid amount is unstable as the height of the liquid level of a slag tank is different and the pressure of the liquid level is different in a manner that the melt is discharged from the bottom of the tank and the problem that the bottom-discharged slag blowing tank is blocked as the slag temperature is reduced are solved.

The invention discloses a combined external pressurized flow type steam generation device. The combined external pressurized flow type steam generation device comprises a basic electromagnetic steam generation unit, one or more additional electromagnetic steam generation units and a pressurization device. The basic electromagnetic steam generation unit comprises one or more first heating inner containers, first coils each wound around the corresponding first heating inner container and a first steam bag used for collecting steam generated by the heating inner containers. Each additional electromagnetic steam generation unit comprises one or more second heating inner containers, second coils each wound around the corresponding second heating inner container and a second steam bag used for collecting steam generated by the heating inner containers. The second steam bags communicate with the first steam bag. The pressurization device communicates with the first steam bag. A steam outlet is formed in the first steam bag. According to the combined external pressurized flow type steam generation device, the multiple sets of electromagnetic steam generation units are arranged in parallel, meanwhile, the pressurization device is additionally arranged, and therefore an electromagnetic steam generator can be applied to occasions needing the high evaporation capacity and high-temperature and high-pressure steam.

The invention discloses a membrane concentrated solution treatment system which comprises a mixing tank and a stirring shaft, wherein a lifting device is fixedly arranged in the stirring shaft, the two ends of the lifting device are arranged on the outer side of the stirring shaft, the upper end of the lifting device is connected with a feeding device, a discharging port of the feeding device is connected with a mixing device, the other side of the mixing device is connected with a liquid storage tank; the lower end of the lifting device is arranged at the bottom of the mixing tank and used for extracting metal impurities in the mixing tank; the mixing device is used for mixing the metal impurities with dilute sulphuric acid to react to generate inorganic salts and injecting the inorganic salts into the mixing tank. Through the device, resources can be greatly saved, and the treatment efficiency of the concentrated solution is improved.

The invention provides a bottom-powder-spraying molten steel refining device with a heating function. The device comprises a steel ladle for refining molten steel, a heating device for heating the steel ladle and a powder spraying device used for introducing gas and powder into the steel ladle. The heating device is arranged inside the steel ladle and located on the upper portion of the molten steel, and the powder spraying device is arranged at the bottom of the steel ladle. According to the molten steel refining device, the powder is pneumatically conveyed from the bottom of the steel ladleinto the steel ladle, therefore, the molten steel in the steel ladle can achieve thorough contact from the bottom to the top, the defects that steel slag reaction conditions are poor and feeding is difficult inside traditional steel ladle heating refining furnaces are overcome, the problem that the temperature is reduced in the steel ladle bottom powder spraying smelting process is solved, the desulphurization efficiency is improved, the steel grade quality is improved, the smelting period is shortened, no splash is produced in the powder spraying process, and refining safety is improved. By the adoption of the molten steel refining device, the refining speed is increased, consumption of electric energy, electrodes and argon is reduced, the production rhythm is improved, the production isincreased, and the cost is reduced.

The invention relates to drying equipment, in particular to a double-layer efficient energy-saving drying cylinder. The double-layer efficient energy-saving drying cylinder comprises a cylinder barrel, a cylinder inner container, an air inlet pipe, an operation-side cylinder cover and a transmission-side cylinder cover. The operation-side cylinder cover and the transmission-side cylinder cover are installed at the two ends of the cylinder barrel respectively. The cylinder inner container is arranged in the cylinder barrel, and the two ends of the cylinder inner container are connected with the operation-side cylinder cover and the transmission-side cylinder cover respectively. An air inlet is formed in the operating-side cylinder cover, a ventilating hole is formed in the cylinder inner container, the air inlet pipe is arranged in the cylinder inner container, and the two ends of the air inlet pipe are communicated with the air inlet and the ventilating hole in the cylinder inner container respectively. The double-layer efficient energy-saving drying cylinder reduces air consumption, saves coal and electricity and reduces production cost.