173 results about "Vibratory fluidized bed" patented technology

A continuous vibro fluidized bed roaster for roasting cereals, pulses, spices, oil seeds and ready-to-eat snack foods using flue gas, said roaster comprises of a main frame (4) which houses all the parts of the machine, the vibrating deck (1) is mounted on a set of coil springs (6) which is mounted on the main frame through screw fasteners, a perforated sieve (3) and a hood (2) are mounted on the vibrating deck (1) with rubber gasket (17) for sealing the hot air from leakage, a vibratory motor (10) is mounted on the feed end of the vibratory deck for imparting vibrations to the feed material, a vibratory feeder (11) is mounted on the feed side of the vibratory deck (1) for feeding the raw material in to the roaster through a hopper (20). A LPG burner (8) is fastened to the combustion chamber (7) using fasteners, a solenoid valve (14) mounted on the main frame (4) for regulating the LPG supply to the burner and also to close the LPG supply incase of electrical power failure with a signal for flame failure from the photo sensor (15), a blower (9) generates the air needed for the reducing the flue temperature is mounted at the end of the on the vibratory feeder (11) on to the main frame (4), a return duct (19) connects the hood (2) and the suction end of the blower (9), a temperature indicator is (21) is used for measuring the inlet temperature of the hot air admitted in to the roaster, an electrical panel (16) is mounted at the end of the main frame for housing all the required electrical controls and variable speed drive (13) for varying the residence time of travel of the raw material, a rheostat (12) for varying the feed rate of the raw material fed in to the vibrating deck, the roaster is covered by a set of covers (18) on all its sides, the complete machine is mounted on a set of castor wheels (5) for easy movement of the roaster to the required place, the materials of construction of the roaster are preferably of stainless steel but this shall not restrict the use of other materials as well.

A continuous vibro fluidized bed roaster for roasting cereals, pulses, spices, oil seeds and ready-to-eat snack foods using flue gas, said roaster comprises of a main frame (4) which houses all the parts of the machine, the vibrating deck (1) is mounted on a set of coil springs (6) which is mounted on the main frame through screw fasteners, a perforated sieve (3) and a hood (2) are mounted on the vibrating deck (1) with rubber gasket (17) for sealing the hot air from leakage, a vibratory motor (10) is mounted on the feed end of the vibratory deck for imparting vibrations to the feed material, a vibratory feeder (11) is mounted on the feed side of the vibratory deck (1) for feeding the raw material in to the roaster through a hopper (20).

The invention discloses a wide-particle-size coal series kaolinite upgrading process based on fluidization sorting, and belongs to coal series kaolinite upgrading processes. The process comprises the steps that coal series kaolinite raw ore is firstly subjected to mechanical sorting, coarse crushing, screening and drying, the raw ore of -50 mm enters a composite dry method sorting machine to be pre-sorted, and light products are screened by a vibration screen of 6 mm; the ore of 6 mm to 50 mm passes through a dense gas-solid fluidized bed sorting machine to obtain coarse-grained concentrate and tailings, the concentrate is subjected to medium removal and then finely ground to obtain ore of -6 mm, and the ore of -6 mm and the original ore of -6 mm are evenly mixed and screened by a classifying screen of 0.5 mm; the ore of 0.5 mm to 6 mm passes through a vibrated fluidized bed sorting machine to obtain fine-grained concentrate and tailings; the ore of -0. 5 mm is subjected to ore grinding, sand removal and classification and then passes through a flotation machine to obtain flotation concentrate and tailings; the concentrate of 0.5 mm to 6 mm is ground after being subjected to medium removal, and is mixed with the flotation concentrate, and then titanium and iron-containing high-magnetic mineral is removed through magnetic separation. Medium solids are separated through a medium removal screen and are subjected to dry type magnetic separation and recycled as circulating media. According to the process, efficient sorting of the wide-particle-size coal series kaolinite raw ore is achieved, and great significance for development and utilization of coal series kaolinite resources in our country is achieved.

The invention provides a processing method for drying leaf-silk in a grading way and equipment thereof; the method comprises two process steps: a first stage is a fluidization drying stage and the hot air drying temperature is controlled at 110 DEG C to 160 DEG C, so as to lead leaf silks to be dehydrated to 15 percent rapidly; a second stage is a roller silk drying stage, the temperature of roller wall is controlled at 60 DEG C to 100 DEG C, and the leaf silks with 15 percent of water content is dried to about 12 percent; the equipment comprises a fluidization drying functional area and a roller silk drying functional area; the fluidization drying functional area comprises a vibration fluidized bed and a wind-collecting guide cover arranged above the vibration fluidized bed; the roller silk drying functional area comprises a silk drying roller, the material inlet of the silk drying roller is communicated with a vibration tank. The invention can effectively utilize different drying characteristics of leaf silks in the constant-speed drying stage and speed-reduction drying stage, so as to improve the filling value of the leaf silks on the premise of not improving the processing temperature of the leak silks; meanwhile, aroma loss of the leaf silks is reduced in the drying process.

The invention discloses an authigenic medium vibrated fluidized bed dry separating method and a separating machine and the authigenic medium vibrated fluidized bed dry separating method and the separating machine are suitable to dry separation of coal, ore and other materials. An authigenic medium is formed in a vibrated fluidized bed through separation and feeding, layering in accordance with density is achieved, fluidization of materials is achieved under the cooperative action of updraft and vibration force, materials of high density are discharged from a separating bed continuously, the separation load is reduced, external medium solid is not used, and the separation is achieved through a medium bed with certain density, which is formed in fluidization of feeding particles. The separating machine comprises the separating bed, an air distributing chamber, a discharging device, an overflowing adjustor, a dust removing and air inducing cover, an excitation motor, a spring and a rack. Three separation sections are used, the separation of heave products and light products of three different density is achieved, the medium solid is not used, the separation cost is low, no embedded chain type discharging device is required, materials are conveyed through vibration, fluidized bed flow and bed inclined angle change, the structure is simple, the operation is stable and the reliability is high.

The invention discloses a vibratory fluidized bed reactor for continuous production of rare earth fluorides. The vibratory fluidized bed reactor comprises a feeding device, a discharging device, a fluidized bed, a vibrator and a heating device, wherein a rare-earth-containing material feeding hole is formed in the upper part of a fluidized bed body; a rare earth fluoride product discharge opening communicated with the discharging device is formed in the lower part of the fluidized bed body; a hydrogen-fluoride-containing gas inlet is formed in the bottom of the fluidized bed body; gas distribution plates through which hydrogen-fluoride-containing gas passes and uniform air distribution is realized are arranged in the cavity of the fluidized bed body; an exhaust pipe is arranged on the top of the fluidized bed body; the heating device is arranged on the outer side of the fluidized bed body and covers the fluidized bed body; the vibrator is arranged on the outer wall of the fluidized bed body; the bottom of the fluidized bed body is connected to supports through elastic supporting pieces. According to the scheme in the invention, the fluidization quality can be improved, the mass transfer and heat transfer effects are improved, the production efficiency is high, and the product is uniform and stable in quality, high in fluorination rate and low in process cost.

The invention discloses a vibrated fluidized bed electric separator which comprises a feed device, a base, a vibrated fluidized bed, a high-voltage electrode plate, a non-conductor belt and a material collection device. The vibrated fluidized bed is arranged on the base by virtue of a spring; the conductive working surface of the vibrated fluidized bed is earthed, and the non-conductor belt which externally wraps the high-voltage electrode plate is arranged above the working surface; the high-voltage electrode plate and the working surface are arranged in parallel and are connected with a high-voltage power source by virtue of a wire; the feed device is arranged on one end of the vibrated fluidized bed while the material collection device is arranged on the other end thereof; the material collection device comprises an ore concentrate groove and a tailing groove; the tailing groove is arranged near the vibrated fluidized bed; the ore concentrate groove is arranged by corresponding to the end part of the non-conductor belt. The vibrated fluidized bed electric separator is reasonable in design and wide in application range and can separate any mineral; the electric separator is particularly suitable for size fraction ranging from -1 mm to 0.2 mm and can perform continuous flow state separation and production to obtain target minerals in higher quality.

An apparatus for drying and conveying a material includes a vibratory fluid bed dryer having a perforated drying deck on which material is deposited, said fluid bed dryer including a vibratory drive system capable of imparting a variable angle vibratory force to the deck. A flash dryer is also provided, having a fan and heater for supplying hot air through the fluid bed dryer deck and a cyclone for collecting finished, dried material particles.

The invention provides a modular high density coal system oil shale quality promoting technology and quality promoting system, and belongs to the oil shale quality promoting technology and quality promoting system. The moisture content of the oil shale acts as the indictor, when the moisture of the oil shale is less than 10%, the technology comprises the steps that +13mm materials are separated by using an air dense medium fluidized bed, 13-6mm materials are separated by using the air dense medium fluidized bed, 6-3mm materials are separated by using a vibration dense medium fluidized bed, -3mm materials are separated by using a vibration fluidized bed, and the media are recycled by using the magnetic separation technology to be used as cycling media; and when the moisture of the oil shale is greater than 10%, the +13mm materials are separated by using a composite dry separator, the 13-6mm materials are separated by using the composite dry separator, the 6-3mm materials are separated by using the vibration fluidized bed, and the -3mm materials are separated by using the vibration fluidized bed. The raw ore of the oil shale is separated into the concentrate ore and the tailing ore by separation of each level of fraction. The technical line of the technology is concise and clear and the technology flow is simple so that efficient separation of the coal system oil shale can be realized, and the quality promoting technology and the quality promoting system have quite important meaning for development and utilization of the coal system oil shale resource of our country.

The invention provides a method and a device for realizing zero release in desulfuration wastewater deepening treatment. The device comprises a waste liquid storage tank, a pre-heater, a degasser, a I-effect evaporator, a II-effect evaporator, a III-effect evaporator, a IV-effect evaporator, a centrifuge, a feeder, a vibrating fluidized bed dryer, an intermediate bunker and a packer which are connected in turn. The method comprises the following steps of: pre-heating and degassing the desulfuration wastewater; and conveying the desulfuration wastewater to the centrifuge to perform solid-liquid separation after four-level evaporation, and drying the solid. The invention has the advantages that the device is simple and the cost is low.

The present invention relates to a method for decomposing phosphogypsum through coupling reaction heat and vibration fluidizing. The method for decomposing the phosphogypsum through coupling the reaction heat and vibration fluidizing is characterized in that, the method comprises the following steps: 1) selecting phosphogypsum and coke according to a dry weight ratio of the phosphogypsum to the coke of (5-35):1; selecting an additive, wherein the adding amount of the additive is 12.5% of the weight of the phosphogypsum; uniformly mixing the phosphogypsum, the coke and the additive to obtain a mixed material; 2) adding the mixed material to a vibrating fluidized bed, heating the vibrating fluidized bed to a temperature of 800-1100 DEG C under a condition of argon introducing; then turning the argon off when the vibrating fluidized bed is heated to the temperature of 800-1100 DEG C, synchronously introducing air, wherein the flow rate of the air is 0.0004-0.008 m / s, the temperature of the vibrating fluidized bed is controlled to 800-1100 DEG C, the reaction time is 10-60 minutes. With the method provided by the present invention, the energy consumption can be effectively reduced, the decomposition rate of the phosphogypsum can be improved, and the product is not easy to be agglomerated.