42results about How to "Realize semi-continuous production" patented technology

The invention discloses a method for purifying silicon through semi-continuous crystallization in silicon alloy melt. The method comprises the steps of heating and melting silicon and Al or Al alloy to form an Al-Si base alloy melt, inserting an air-cooled revolving crystallizing rod in the melt so that silicon crystal is separated out of the alloy melt while such major impurities as B and P are kept in the alloy melt, thus achieving an effect of removing impurities. The air-cooled continuous rotating crystallizing rod is inserted in the melt and relatively high cooling speed is adopted to improve crystal growth speed, so as to realize semi-continuous crystallizing growth in the silicon alloy melt. The method disclosed by the invention has the advantages of being low in energy consumption, free from pollution, high in production efficiency, capable of realizing semi-continuous production, small in investment scale, and simple in production process and equipment operation.

The invention provides a preparation method of an aluminum-scandium intermediate alloy, an aluminum-scandium intermediate alloy and an aluminum-scandium alloy. The preparation method comprises that a scandium-containing compound and an aluminum-containing raw material are added into a first reactor and undergo a thermal reduction reaction to produce a liquid aluminum-scandium intermediate alloy, wherein the aluminum-containing raw material contains aluminum and/or an aluminum alloy, the liquid aluminum-scandium intermediate alloy is added into a second reactor with melt salt and is subjected to slag extraction treatment, wherein the density of the melt salt is less than density of the liquid aluminum-scandium intermediate alloy, and the liquid aluminum-scandium intermediate alloy subjected to slag extraction treatment is cooled and cured so that an aluminum-scandium intermediate alloy cast ingot is obtained. The preparation method realizes a thermal reduction reaction and a slag extraction treatment process in different reactors, realizes semi-continuous production of the aluminum-scandium intermediate alloy, improves aluminum-scandium intermediate alloy production efficiency and improves aluminum-scandium intermediate alloy uniformity.

The invention discloses an electrolytic cell in electro-deoxidization metallurgy process, which is divided into a negative electrode region and a positive electrode region, which have the effect of isolating the flow of fused salts while achieving free exchange of ions, thus suppressing the occurrence of side reaction of positive and negative electrode products; the positive electrode in the electrolytic cell is rotated to accelerate the deoxidization speed and simultaneously, the emission of tail gas in the positive electrode region is quickened up in a manner of oriented-circulating protective gas stream in order to avoid overhigh content of the tail gas within the electrolytic cell; the electrodes of the electrolytic cell are changed into be arrayed in parallel, which breaks the limitation of traditional single electrode, the negative electrode and the positive electrode correspondingly form counter electrodes so as to polarize the electro-deoxidization task of the electrodes. The parallel-type electrodes can also adjust the array number of the counter electrodes according to requirement so as to change production ability without more improvements on equipment and production conditions, and to guarantee product quality as well. The electrolytic cell according to the invention has large production ability and short production period and is capable of realizing semi-continuous product.

The invention provides a method for semi continuous metallothermic reduction. In the method, a reduction pot is communicated with a liquid crystallizer arranged outside the reduction pot by a diversion device, therefore metal steams in the reduction pot enter the liquid crystallizer through the diversion device and are converted to liquid state and kept as the liquid state; liquid metal in the liquid crystallizer periodically and quantificationally flows into liquid pouring baskets; when a liquid pouring basket is filled up, another liquid pouring basket replaces the original liquid pouring basket to connect the liquid crystallizer so as to continuously collecting the liquid metal in the liquid crystallizer; after complete separation of the metal in the reduction pot, slag is removed, and new palletized feed stock is put in the reduction pot for starting a new reduction. The method has the advantages of realizing the semi continuous production of metal vacuum metallurgy, improving production efficiency and lowering production cost.

The invention discloses a split type carbonization furnace set. The split type carbonization furnace set comprises a combustion furnace, a hot gas pump and carbonization furnaces, wherein the combustion furnace, the hot gas pump and the carbonization furnaces are sequentially connected through pipelines, the combustion furnace and the carbonization furnaces are separated, and three or more carbonization furnaces are connected in parallel in a process. Wood, fruit peels, straw and other biomass raw materials are put in the closed carbonization furnaces with a dry distillation process, fuel is added to the combustion furnace and combusted to generate hot gas, the hot gas is sent into the carbonization furnaces through the hot gas pump to heat the biomass, accordingly, oxygen-free carbonization is realized, combustible byproducts generated in the carbonization process enter a combustion chamber through the pipelines for combustion, the gas after combustion enters a chimney and is discharged into the air after being treated through a smoke filter, and environment pollution is avoided. The combustion furnace and the carbonization furnaces are separated, multiple carbonization furnaces are connected in parallel, each carbonization furnace can be operated independently, other operation is not affected, semi-continuous production of the carbonization furnaces is realized, the working intensity is reduced, and the equipment production efficiency is improved.

A technology for recover lithium battery includes disassemble lithium battery, taking out positive electrode sheet, and crushing into sheet. Mix the plate-like positive electrode with NaOH solution and stir at room temperature to react 15-20 min after that separation, the coating is obtain, and aluminum foil is obtained; Mix the dried coating with NMP, and adding at a temperature from 100-105 DEGC and stirring to dissolve for 30-40 min, filter by suction, washing that solid obtain by suction filtration and drying to obtain the active substance; Mix the active ingredient with the acid extract,and allowing reaction at a temperature of 60-65 DEG C for 30-40 min, filter, adding NaOH solution into that filtrate obtain by filtering until Fe 3 + is completely precipitated, filtering, washing and dry the precipitate obtained by separation to obtain Fe (OH) 3 precipitate, adding Na2CO3 solid into the filtrate obtained by separation until Li + is completely precipitated, and separating to obtain Li2CO3 solid. The recovery process provided by the invention has low energy consumption and can realize semi-continuous production.

The invention belongs to the technical field of rubber plasticizer production, and particularly relates to a method and device for semi-continuously producing acetyl tributyl citrate. The device comprises a reaction still. The reaction still is sequentially connected with a buffer tank, a first boosting pump, a heater, a deacidification tower, a condenser, a vacuum pump and a non-condensable gas tank through pipelines. The outer side of the reaction still is further connected with a tributyl citrate tank, an acetic anhydride feed device and a catalyst feed device. The condenser is connected with an acetic acid storage tank. The lower portion of the deacidification tower is provided with a reboiler which is sequentially connected with a raw ester tank, a second boosting pump and a continuous washing device. The method specifically includes the step that acetylated coarse products obtained in a reaction enter the continuous washing device to be washed after being flashed twice in the heater. The problems that in an existing process, yield is low, device utilization rate is low, and production process is cumbersome are solved; the device is simple in structure and easy to operate.

The invention relates to a semi-continuous production metal vacuum smelting reduction device which comprises a reduction tank that is communicated with a liquid state crystallizer arranged outside thereduction tank by a diversion device; the liquid state crystallizer comprises a crystallizer shell which is provided with a containing space, and is provided with a crystallizer heating control device used for controlling the temperature of the containing space and a crystallizer vacuum extractor used for controlling the vacuum degree of the containing space; and the crystallizer shell is also provided with an intermediate pipeline used for communicating a liquid state intermediate packet. The device can be used for realizing semi-continuous production of metal vacuum smelting, thus improvingthe production efficiency and reducing the production cost.

The invention relates to a method for manufacturing a steel/aluminum composite conductive pillar, in particular to a method for obtaining the steel/aluminum composite conduction pillar through controlling the size of a steel head and processing the surface of the steel head with dip plating solution and finally utilizing liquid aluminum and solid steel. In the process of designing the steel head, area ratio of steel and aluminum of the same height on the steel/aluminum composite part is 1: (1.5 to 2.6); a strengthening rib is welded on the bottom of the steel head; surface pretreatments of degreasing, derusting and zirconium potassium fluoride water solution are carried out on a part of the steel head needing to be contacted with aluminum water before being poured with aluminum water; after the surface pretreatment, the steel head is heated for 25 to 35 minutes under temperature of 400 to 450 DEG C and the pouring temperature of the aluminum water is controlled within 750 to 800 DEG C; after the aluminum water is poured, cooling rate of an aluminum pole part is controlled within 10 to 40 DEG C/min to prevent aluminum from shrinking severely and avoid cracking of an interface. The method for manufacturing steel/ aluminum composite conduction pillar can obviously improve bonding strength and service life of the steel/aluminum composite conduction pillar.

The invention discloses a horizontal gas system, which comprises a furnace body, a heat storage device, a rotary driving device, a condensing device and a vacuum device. The furnace body includes a reaction chamber and a combustion chamber, the heat storage device is connected with the combustion chamber of the furnace body, and the rotary driving device is connected with the reaction chamber of the furnace body. The condensing device is connected with the reaction chamber. The vacuum unit is connected to the condensing unit. The invention adopts a rotatable reaction chamber connected with a combustion chamber, which can make large batches of materials evenly heated, and improves the convenience of equipment operation. The connection between the condensation chamber and the reaction chamber can be cut off at any time, which enhances the sealing of the reaction chamber.

The invention provides a graphene production device and method.The device comprises a furnace cover and an electric induction furnace, the electric induction furnace comprises a furnace body and an induction coil copper pipe, the furnace body is made of furnace lining ramming materials, the induction coil copper pipe surrounds the outer side of the furnace body, and high-purity carbon bricks are built on the inner wall of a hearth of the electric induction furnace. Air bricks are arranged at the bottom of the furnace body, and a collecting pipeline is arranged on the furnace cover. According to the graphene production device and method, semi-continuous production of graphene can be achieved, and the prepared graphene is directly blown out through inert gas, easy to collect and convenient to transfer.

The invention discloses a gas type equipment, which comprises a combustion chamber and a reaction chamber, and the reaction chamber is detachably arranged in the combustion chamber. The equipment of the present invention can increase the number of reaction chambers and combustion chambers according to the amount of materials to be processed, and all reaction chambers can share one combustion chamber for heating, and only need to increase the number of burners and flue gas pipes to achieve uniform heating Purpose.

The invention discloses a device for preparing a high-strength alloy through semi-continuous extrusion of metal powder and a preparation process, and belongs to the technical field of metal material forming machining. The device comprises a preparation bin, a heat preservation device, a forming device, an extrusion device, a pre-jacking device and a cutting device, wherein the heat preservation device, the forming device and the extrusion device are arranged in the preparation bin, and the pre-jacking device and the cutting device are arranged outside the preparation bin; and after being subjected to heat preservation in the heat preservation device, metal powder is heated by the forming device, extruded by the extrusion device, pre-jacked by the pre-jacking device and cut by the cutting device, and finally a high-strength alloy ingot or profile is formed. Compared with a traditional production mode of the high-strength alloy, the technologies of powder metallurgy, warm pressing forming, warm extrusion, plastic rheological shearing and the like are combined, the defects of a traditional production technology of the high-strength alloy are overcome, and large-size and semi-continuous production of the high-strength alloy can be achieved.