44results about How to "Good for roasting" patented technology

The invention discloses industrial waste residue treatment equipment, comprising a base, a crushing box, a packing auger delivery pipe, a supporting seat, a roasting drum, a delivery pipe, a washing box, a drying storage box, a box door, control buttons, a feed pipe, a first motor, a gas storage tank, a crushing roller, a vibrating screen plate, a blocking plate, a magnetic separation drum, a scraper blade, an iron-containing waste residue storage bin, a reject bin, a roasting roller, a helical blade, a transmission rack, a fire spray pipe, a nozzle, a vibration drying plate, a transmission case, a second motor, a water suction pump, a washing drum, cleaning fluid, a graded storage bin, a graded screening board, a material conveying bin, a washing net, an electromagnetic board, a smooth sleeve and a screen, wherein the crushing box is installed at one side of the top of the base, the feed pipe is arranged on the top of the crushing box, the control buttons are installed on the outer wall of one side of the crushing box, and the box door is connected under the control buttons by means of a hinge. The industrial waste residue treatment equipment has the advantages of being convenient for waste residue screening and uniform in waste residue roasting, and realizing graded screening and storing.

The invention discloses a method and system for treating vanadium slag and belongs to the field of extracting of valuable metal in the vanadium slag. The invention firstly discloses the method for treating the vanadium slag. The method includes the steps that the vanadium slag is subjected to oxidization magnetizing roasting firstly so that iron in the vanadium slag can be converted into magnetic ferroferric oxide to be subjected to magnetic separation recycling, vanadium can be enriched through the vanadium slag obtained after iron recycling, and non-magnetic vanadium-enriched slag is obtained; and calcium salt is mixed into the vanadium-enriched slag, then vanadium in the vanadium-enriched slag is recycled through an oxidization roasting-acid leaching vanadium extracting method, and therefore the iron and the vanadium in the vanadium slag can be extracted step by step. The invention further discloses the system for implementing the method for treating the vanadium slag. The system comprises an oxidization magnetizing roasting device, a magnetic separation device, an oxidization calcification roasting device, an acid leaching vanadium extracting device and a vanadium precipitation-roasting device. By means of the method and system for treating the vanadium slag, the recovery rate of the iron and the vanadium in the vanadium slag is high, the vanadium slag can be comprehensively utilized, and operation is simple.

The invention provides a method for extracting aluminum oxide from coal gangue and co-producing active calcium silicate, and relates to the technical field of producing aluminum oxide and the active calcium silicate. The method comprises the following steps of: grinding coal gangue, and roasting and activating the ground coal gangue; performing alkali soluble desilication of coal gangue clinker to obtain desilication coal gangue and solution of sodium silicate; performing causticizing reaction of the solution of sodium silicate to obtain water-containing calcium silicate and solution of sodium hydroxide, and drying the water-containing calcium silicate to obtain micro powder of active calcium silicate; adding limestone and solution of sodium carbonate into the desilication coal gangue, and ball-grinding the mixed solution to obtain raw slurry; dissolving out the clinker which is obtained by roasting the raw slurry with water to obtain crude solution of sodium aluminate and silicon andcalcium residues, wherein the silicon and calcium residues can be used as cement raw materials after post-treatment; performing deep desilication of the crude solution of sodium aluminate to obtain the purified solution of sodium aluminate; feeding CO2 into the purified solution of sodium aluminate to obtain aluminum hydroxide and solution of sodium carbonate; and calcining the aluminum hydroxideto obtain the aluminum oxide products. The method has the advantages of simple process, low production cost, low energy consumption and little consumption of raw materials; in addition, by the method, two kinds of silicon-containing byproducts are simultaneously produced, and no waste is generated.

Belonging to the technical field of new energy, the invention discloses a complete set of energy-saving roasting technology for regenerated lithium iron phosphate. The complete set of energy-saving roasting technology for regenerated lithium iron phosphate includes the steps of: waste lithium battery disassembly, anode material ball milling, raw material powder mixing, mixture dehydration, roasting and melt impregnation, and drying grinding of premix: putting the obtained lithium iron phosphate premix into a mill and carrying out dry grinding for a certain period of time so as to obtain a lithium iron phosphate material. The technology provided by the invention can realize carbon coating of the lithium iron phosphate material with carbon-based glucose, improves the diffusion coefficient oflithium ions between two phases, increases the discharge capacity of the lithium iron phosphate anode material, and then improves the quality of the recycled lithium iron phosphate material, at the same time, protective gas involved in the roasting process is collected through a special structure of the material itself, so that the protective gas in the lithium iron phosphate roasting process canbe recycled, and the cost consumption of lithium iron phosphate regeneration and recycling can be reduced.

The invention discloses an industrial waste slag treatment equipment, which comprises a base, a crushing box, an auger conveying pipe, a support seat, a roasting cylinder, a conveying pipe, a water washing box, a drying storage box, a box door, a control button, a feeding pipe, a first 1. Motor, gas storage tank, crushing roller, vibrating sieve plate, baffle plate, magnetic separation cylinder, scraper, iron-containing waste slag storage bin, waste bin, roasting drum, spiral blade, transmission rack, flame spray pipe, nozzle, Vibrating drying plate, transmission box, second motor, water pump, washing drum, cleaning liquid, grading storage bin, grading screening plate, feeding bin, washing net, electromagnetic plate, smooth sleeve and screen, the base A crushing box is installed on one side of the top of the crushing box, a feeding pipe is arranged on the top of the crushing box, a control button is installed on one side of the outer wall of the crushing box, and a box door is connected to the bottom of the control button through a hinge. The processing equipment has the advantages of convenient waste residue screening, uniform waste residue roasting and graded screening storage.

The invention belongs to the field of wet process copper extraction, and particularly relates to a technique for recycling ammonium sulfate to extract copper from copper sulphide minerals through a wet process. The technique particularly comprises the following steps that the copper sulphide minerals and the ammonium sulfate are mixed and subjected to sulfating roasting; water or a sulfuric acid solution is added into roasted ore to be subjected to copper leaching treatment; metal copper is extracted from an immersion solution through an extraction and electrodeposition process, the generated waste acid pickle part returns to the leaching copper, surplus waste acid pickle is neutralized by ammonia gas decomposed by roasting to obtain ammonium sulfate, and the ammonium sulfate is crystallized out through a solvent-out crystallization method to be recycled. The sulfating roasting temperature is 400-500 DEG C, the copper minerals are mainly converted into freely soluble CuSO4 or CuO.CuSO4 by controlling the roasting temperature, iron minerals are mainly converted into difficultly soluble FeS, sulphur is left in the roasted ore mainly in a simple substance mode, SO2 gas is not generated, the environment is not polluted, and subsequent selective copper leaching is facilitated.

The invention relates to the field of granulation of a batch used for glass melting, and discloses methods of glass batch granulation and glass production, a method of producing glass by utilizing fly ash and / or fly ash aluminum-extraction slag and a glass product. The method of granulation includes (1) mixing a silicic acid precipitate, a sodium oxide source, a calcium oxide source and a water phase to form slurry; and (2) roasting the slurry under stirring to subject the silicic acid precipitate, the sodium oxide source and the calcium oxide source in the slurry to drying, pre-decomposition and granulation under the roasting condition to obtain glass batch granules. Glass batch granulation in a non-compression manner is achieved, and pre-decomposition and granulation of the glass batch can be completed simultaneously, thus simplifying a glass melting process, and increasing the melting amount of a glass kiln. Obtained molded glass has reduced air bubbles and improved quality.

The invention discloses a complete roasting process for energy-saving regenerated lithium iron phosphate, which belongs to the technical field of new energy. A complete roasting process for energy-saving regenerated lithium iron phosphate comprises the following steps: dismantling waste lithium batteries, ball milling positive electrode materials, Raw material powder mixing, mixing and dehydration, roasting and melt impregnation, dry grinding is expected, the obtained lithium iron phosphate is expected to be put into the mill, and dry grinding is carried out for a certain period of time to obtain lithium iron phosphate material, which can realize the utilization of carbon-based Glucose coats the lithium iron phosphate material with carbon, increases the diffusion coefficient of lithium ions between the two phases, increases the discharge capacity of the lithium iron phosphate cathode material, thereby improving the quality of the recovered lithium iron phosphate material, and at the same time through its own special The structure collects the protective gas during the roasting process, so that the protective gas during the roasting process of lithium iron phosphate can be recycled, and the cost consumption of regeneration and recovery of lithium iron phosphate is reduced.

A rack for cooking poultry or other meat comprises a collapsible frame made from a plurality of rod like members including a cradle within which an elongated skewer is non-rotatably retained such that said skewer may be separable and removable from said rack to turn or plate the poultry.

The invention discloses a production method of high-magnesium pellets. The specific steps are as follows: mix magnesium oxide powder into bentonite to make magnesia bentonite, mix magnesia bentonite into iron concentrate powder, and then add magnesia bentonite Bentonite is used as a mixture; the mixture is mixed with a mixer and transported to the pelletizing disc in the pelletizing chamber through a belt, and the above-mentioned mixture and water are added to the disc pelletizer to form pellets to obtain raw pellets; After the green balls are screened, dried, preheated, roasted and cooled, high-magnesium pellets are obtained. In the present invention, since bentonite and magnesium oxide powder are mixed and ground first, the affinity between bentonite and fine iron powder has been improved, which is beneficial to the roasting of green balls, and effectively improves the powder, poor atmosphere and cooling during the roasting process. In a bad situation, the output is not affected, the production process is easy to control, and the ringing of the rotary kiln is delayed, the production of high-magnesium pellets is normalized, and the quality index meets the index requirements of the steel plant.

The invention discloses a preparation method based on high-pressure roll-grinding pretreatment and used for low-energy-consumption and high-quality vanadium-titanium pellet ores. According to the method, the specific surface area and the particle size composition of vanadium-titanium magnetite are improved by controlling the conditions of high-pressure roll-grinding, and meanwhile, the compact structure of vanadium-titanium magnetite particles are broken by virtue of the high-pressure roll-grinding, so that favorable conditions are provided for pelletization and oxidation-solidification for the vanadium-titanium magnetite; pelletization and roasting methods suitable for the vanadium-titanium magnetite subjected to the high-pressure roll-grinding are developed according to the structure andsurface characteristics of the vanadium-titanium magnetite subjected to the high-pressure roll-grinding; and uniform oxidation and efficient solidification for the vanadium-titanium magnetite are realized through the coupling action of the high-pressure roll-grinding pretreatment, pellet particle size control, thermal process optimization and the like, so that the strength of the vanadium-titanium ore pellets is greatly increased, the energy consumption of the roasting process is reduced, and then the high-quality vanadium-titanium pellet ores are prepared.