摘要:
The present invention provides a piece of reaction equipment for producing sponge titanium, which includes a reactor and a reactor cover with a stirring device, wherein a sealing ring is arranged between the reactor cover and the reactor, one side of the reactor cover is provided with a lifting device for controlling the lifting of the reactor cover, a resistance furnace is arranged above the reactor cover, a valve is arranged below the resistance furnace, and a vacuum-pumping pipe and an inflation pipe are arranged above the reactor cover. The present invention has the beneficial effects that the production equipment can ensure normal production, and effectively ensures the quality of sponge titanium product; compared with the prior art, the equipment has low cost, environmental protection and harmlessness during production.
摘要:
The present invention provides a piece of distillation equipment for producing sponge titanium, which includes a heating furnace and a reactor for containing a condensate, wherein a heating furnace cover is arranged above the heating furnace, a reactor cover is arranged above the reactor, the heating furnace cover is connected with the reactor cover by a pipe, a resistance wire is arranged on the pipe, each lifting device is arranged above the heating furnace cover and the reactor cover, a vacuum-pumping pipe is arranged above a heater cover, and a first metal sealing ring is arranged between the reactor cover and the reactor. The present invention has the beneficial effects that the distillation equipment can ensure normal production, and effectively ensure the quality of sponge titanium product. The problem of distillation tube blockage is solved by adopting a metal gasket.
摘要:
The present invention provides a sealing ring and a preparation method thereof. The sealing ring, based on percent by weight, includes 80%-85% of aluminum, 10%-15% of titanium, 0.1%-1% of scrap iron, and 4%-4.9% of potassium fluoroaluminate. Moreover, the present invention provides a method for preparing sealing ring, which includes the following steps: Step A: melting the aluminum in a medium-frequency induction furnace, adding the potassium fluoroaluminate to the medium-frequency induction furnace after melting the aluminum, melting and stirring the mixture evenly; Step B: adding titanium scrap or sponge titanium, and scrap iron to the mixture successively, melting and mixing the mixture totally at 800° C. to 1200° C., standing the mixture after stirring evenly; Step C: removing scum on the surface; Step D: casting into a mould to obtain a final sealing ring.
摘要:
The invention provides a method for preparing sponge titanium from sodium fluotitanate by aluminothermic reduction, comprising the following steps: a reaction step: aluminum and zinc are mixed under a vacuum state, and sodium fluotitanate is then added into the mixture for reaction; a separation step: the product resulting from the complete reaction stands still and is then introduced with inert gas, and NaF and AlF3 in upper-layer liquid phase are extracted; and a distillation step: Zn in the remaining product Zn—Ti is distilled out under a vacuum state, wherein the mass ratio of the aluminum to the zinc is 1:2 to 1:10.
摘要:
The invention provides a method for preparing sponge titanium from potassium fluotitanate by aluminothermic reduction, comprising the following steps: a reaction step: aluminum and zinc are mixed under a vacuum state, and the mixture is then reacted with potassium fluotitanate; a distillation step: KF, AlF3 and Zn generated by reaction are distilled out under a vacuum state; and a cooling step: sponge titanium is obtained subsequent to banking cooling. The invention further provides another method for preparing sponge titanium from potassium fluotitanate by aluminothermic reduction, comprising the following steps: a reaction step: aluminum and magnesium are mixed under a vacuum argon introduction condition, and the mixture is then reacted with potassium fluotitanate; a distillation step: KF, AlF3, MgF2 and Mg generated by reaction are distilled out under a vacuum state; and a cooling step: sponge titanium is obtained subsequent to banking cooling.
摘要:
A video transmitter identifies regions in pictures in a compressed three-dimensional (3D) video comprising a base view video and an enhancement view video. The identified regions are not referenced by other pictures in the compressed 3D video. The identified regions are watermarked. Pictures such as a high layer picture in the base view video and the enhancement view video are identified for watermarking. The identified regions in the base view and/or enhancement view videos are watermarked and multiplexed into a transport stream for transmission. An intended video receiver extracts the base view video, the enhancement view video and corresponding watermark data from the received transport stream. The corresponding extracted watermark data are synchronized with the extracted base view video and the extracted enhancement view video, respectively, for watermark insertion. The resulting base view and enhancement view videos are decoded into a left view video and a right view video, respectively.
摘要:
The present invention provides a process for producing sponge titanium, which includes the following steps: Step A: placing aluminum into a resistance furnace, vacuum pumping, introducing inert gas, heating to molten aluminum; Step B: opening a reactor cover, adding a proper amount of potassium fluotitanate to a reactor, leakage detecting after closing the reactor cover, slowly raising the temperature to 150° C., vacuum pumping, and continuously heating to 250° C.; Step C: introducing inert gas into the reactor, continuously raising the temperature to 750° C., stirring uniformly; Step D: opening a valve to adjust the stirring speed, adding molten aluminum drops, and controlling the reaction temperature to 750° C. to 850° C.; Step E: opening the reactor cover, removing a stirring device, eliminating the upper layer of KAlF4 to obtain sponge titanium. The present invention has the beneficial effects of short process flow, low cost, environmental protection and harmlessness.
摘要:
The invention provides a technological method for preparing sponge titanium from sodium fluotitanate raw material, comprising the following steps: step A: placing aluminum in an airtight resistance furnace, evacuating, introducing inert gas into the resistance furnace, and heating the aluminum to obtain molten aluminum; step B: opening a reactor cover, adding a proper amount of sodium fluotitanate into the reactor, closing the reactor cover, detecting leakage, slowly heating the reactor to 150° C., evacuating and continuously heating the reactor to 250° C.; step C: introducing inert gas into the reactor, continuously heating the reactor to 900° C., and stirring uniformly; step D: opening a valve, adjusting the stirring speed, dripping the molten aluminum, and controlling the temperature of reaction in a range from 900 to 1000° C.; and step E: opening the reactor cover, removing a stirring device out of the reactor, and eliminating NaAlF4 at upper layer to obtain sponge titanium.