24 results about "Froth flotation" patented technology

The utility model discloses a coal mine flotation froth mobile identification device, which relates to the technical field of froth flotation, and comprises a mobile assembly, an automatic identification probe and a cleaning assembly, and the cleaning assembly is arranged above the automatic identification probe; the cleaning assembly comprises an air heater, a cleaning brush assembly and a transverse driving assembly, the air heater and the cleaning brush assembly are installed at the bottom end of the transverse driving assembly, the cleaning brush assembly is used for cleaning the automatic recognition probe, the transverse driving assembly comprises a transverse plate installed on the moving assembly, and the transverse plate is arranged above the automatic recognition probe. The transverse plate is slidably sleeved with a connecting plate, an air heater and a cleaning brush assembly are installed at the bottom end of the connecting plate, an inverted L-shaped frame is installed at the top end of the moving assembly, and a driving part is movably installed between the connecting plate and the L-shaped frame; the problems that in the prior art, after foam is scraped out by a foam scraping plate, water flow sprayed on the side conveys the foam together, in the spraying process, the water flow impacts a concentrate tank, water flow splashed on the tank wall is prone to being sprayed to an automatic recognition probe, and the recognition effect of the probe is affected are solved.

Methods of improving the stability of froth flotation overflows and underflows include adding 1 ppm to 1000 ppm by weight of a cationic polymer to an overflow or an underflow including 1 wt% to 20 wt % of a particulate product in a medium, wherein the particulate product is a valuable mineral product or a gangue. In particular, the addition of cationic polymer to a tailings flow – that is, a gangue in a fluid medium - reduces or eliminates "sanding", a term of art used to describe the technical problem of deposition of gangue solids from tailings flows transported through pipes, tubes, and runways during transportation thereof e.g. to a thickener bed.

Methods of improving the stability of froth flotation overflows and underflows include adding 1 ppm to 1000 ppm by weight of a cationic polymer to an overflow or an underflow including 1 wt % to 20 wt % of a particulate product in a medium, wherein the particulate product is a valuable mineral product or a gangue. In particular, the addition of cationic polymer to a tailings flow—that is, a gangue in a fluid medium-reduces or eliminates “sanding”, a term of art used to describe the technical problem of deposition of gangue solids from tailings flows transported through pipes, tubes, and runways during transportation thereof e.g. to a thickener bed.

The subject invention provides safe, environmentally-friendly, compositions and methods for extracting minerals and / or metals from rock, ore, tailings, and / or coal combustion wastes. More specifically, the subject invention provides for enhanced froth flotation, including direct flotation or reverse flotation, of rock, ore, tailings, and / or coal fly ash using a composition comprising one or more biosurfactants.

The application provides a method and system for predicting the amount of reagent based on multi-modal flotation froth digital characterization, relating to the technical field of froth flotation. The method comprises: collecting multi-modal data of the froth state in the metal ore flotation process, including RGB images, video sequences and three-dimensional point clouds; constructing three froth feature extraction networks to extract the RGB features, video dynamic features and three-dimensional point cloud features of the multi-modal data respectively; fusing the extracted RGB features, video dynamic features and three-dimensional point cloud features based on a cross-modal attention mechanism to generate multi-modal features; constructing an expert knowledge base, which includes structured rules and historical cases; constructing a reagent dosage decision model based on the expert knowledge base and a large language model, converting the multi-modal features into standardized vector representations, retrieving the expert knowledge base using similarity matching, and generating a reagent dosage adjustment strategy. The application can realize accurate prediction from froth multi-modal features to reagent dosage adjustment.

The invention discloses a method for enriching aluminum oxide by using silicon ore tailings and preparing a mullite refractory material. The method comprises the steps that firstly, silicon ore tailings are subjected to ball milling till the content of the-74-micron particle fraction is 60%-70%, then foam flotation treatment is conducted, and efficient separation of aluminum-containing minerals and gangue is achieved by adjusting the pH value of ore pulp, the concentration of the ore pulp, the using amount of a collecting agent, the air amount, the thickness of a foam layer and other technological parameters. When the content of aluminum oxide in the tailings is insufficient, fly ash, bauxite tailings, low-grade bauxite or waste refractory material powder can be added as supplementary raw materials. And finally, aluminum-rich concentrates with the aluminum oxide content of 63 + / -1%, 67 + / -1%, 73 + / -1% and 75 + / -1% are obtained, and homogenized materials of different grades are formed. And the obtained concentrate is subjected to vacuum pugging, molding, drying and sintering to prepare the mullite or corundum-mullite refractory product with excellent performance.

This invention relates to a controlled-foam flotation method for fine-grained zinc oxide ore, belonging to the field of mineral processing technology. Addressing the problems of deteriorating separation indices due to slime recycling, large and poorly fluid foam, stable and highly viscous foam layers, and poor flotation performance in the flotation process of fine-grained zinc oxide ore, this invention improves the flotation process and recovery indices by innovating the flotation process and developing novel flotation reagents. Specifically, it employs a fine scavenging operation to process middlings separately, avoiding their return to roughing and cleaning operations, thus preventing repeated recycling of slime in these operations and directly producing zinc concentrate. Furthermore, it uses a foam control agent to regulate the flotation foam of fine-grained zinc oxide ore, thereby increasing its ore-carrying capacity and improving the stability, viscosity, and fluidity of the foam layer. This facilitates the smooth flotation process of fine-grained zinc oxide ore, achieving higher flotation indices and promoting the efficient recovery of complex and difficult-to-process zinc ore resources.

The utility model belongs to the technical field of gas purification, and particularly relates to a desulfurization regeneration tank liquid level adjusting and froth flotation device which comprises a communicating pipe, the top of the communicating pipe is fixedly connected with an outer cylinder, the top of the outer cylinder is connected with an upper cover, the top of the upper cover is provided with a balance air inlet, and a threaded rod penetrates through the top of the upper cover in a threaded mode. According to the utility model, the shifting block shifts the movable block to drive the bayonet lock to contract, then the indicating rod is inserted from the first connecting sleeve, penetrates through the upper cover and then is inserted into the second connecting sleeve, at the moment, the shifting block is loosened, and the bayonet lock pops up under the action of the spring and is inserted into the bayonet lock, so that the indicating rod is mounted and fixed; in the process that the electric screw lifter drives the threaded rod to rotate to adjust the height of the inner cylinder, the annular sleeve can rotate along the interior of the annular groove, so that the top of the connecting rod can drive the indicating rod to ascend and descend together, and then the height of the inner cylinder can be accurately checked according to the position of the graduated scale; and the practicability of the device is improved.

Methods of improving the stability of froth flotation overflows and underflows include adding 1 ppm to 1000 ppm by weight of a cationic polymer to an overflow or an underflow including 1 wt% to 20 wt % of a particulate product in a medium, wherein the particulate product is a valuable mineral product or a gangue. In particular, the addition of cationic polymer to a tailings flow – that is, a gangue in a fluid medium - reduces or eliminates "sanding", a term of art used to describe the technical problem of deposition of gangue solids from tailings flows transported through pipes, tubes, and runways during transportation thereof e.g. to a thickener bed.

The invention relates to the field of nonmetallic mineral processing, in particular to a froth flotation method for barium sulfate minerals. The invention discloses a formula for an agent for barite flotation. Sodium oleate (lauryl sodium sulfate) is used as a collecting agent, water glass is used as an inhibitor, terpilenol is used as a foaming agent, the content of barium sulfate in barite mineral powder in foam flotation can be increased by adjusting the content of the collecting agent and the content of the inhibitor, and impurities are enriched in tailings. The collecting agent for barite flotation is prepared from the following raw materials in percentage by weight: 0.05 to 0.1 percent of sodium oleate (lauryl sodium sulfate) and 0.1 to 0.2 percent of water glass; the flotation agent is high in selectivity and strong in ore loading capacity, and can achieve an excellent flotation effect on barite ore in Longnan Wenxian County, Gansu Province, and concentrate with higher purity and higher recovery rate are obtained. The density of the purified barite powder is remarkably improved, and the obtained barite product can meet the density requirements of grade II products and even grade I products as a weighting agent of drilling mud. The method is simple in process, excellent in collecting agent effect, low in cost, environmentally friendly and capable of being deployed in factories on a large scale.

The application discloses a method for recovering phosphate in a digestion sludge system and separating products. The method uses the difference between the hydrophilicity and hydrophobicity of the vivianite particles and the digestion sludge in the digestion sludge system, uses a collector to improve the hydrophobicity of the vivianite, uses an inhibitor to improve the hydrophilicity of other impurity particles such as silicon dioxide, separates the vivianite particles and the impurities such as silicon dioxide in the digestion sludge through a froth flotation method, and can realize efficient separation and recovery of phosphorus resources.

A terpolymer composition, and method of preparing the same, said terpolymer composition comprising 5 to 90 mol% of recurring units having an uncharged functional group, 5 to 40 mol% of recurring units having a sulfur-containing functional group, and 5 to 90 mol% of recurring units having a charged functional group, based on total mols of the terpolymer composition, wherein the terpolymer composition comprises a weight averaged molecular weight (Mw) in a range of 1000 Da to 15000 Da. The present invention also relates to a method of selectively recovering sulfide minerals comprising conditioning a process ore slurry with the terpolymer composition, and conducting a froth flotation process to separate the process ore slurry into a non-value mineral stream and a value mineral stream.

The invention provides an undersampling-based froth flotation working condition identification method and related equipment. The method comprises the following steps: acquiring historical froth image samples under normal working conditions as majority class samples and historical froth image samples under abnormal working conditions as minority class samples; inputting the majority of samples into the constructed multi-target optimization under-sampling model, and solving the multi-target optimization under-sampling model through a binary multi-target state transition algorithm to obtain an optimal Pareto solution set; for each undersampling result in the optimal Pareto solution set, merging the undersampling results with minority class samples to obtain a training set to train the base classifiers, and obtaining a working condition identification model integrated by a plurality of base classifiers; the foam image data collected in real time in the industrial production process are input into the working condition recognition model for working condition recognition, and a working condition recognition result in the industrial production process is obtained; and the recognition precision and the classification confidence coefficient of minority class abnormal working conditions are remarkably improved while the high overall recognition rate is kept.

The present application relates to the technical field of separation equipment, and discloses a fragrance separation equipment based on a froth flotation structure, which comprises a separation tower, a defoaming device for scraping off foam is arranged at the top end of the inner wall of the separation tower, a discharge port for discharging fragrance foam is arranged at the outer side of the top end of the separation tower, and a gas distributor is arranged at the bottom end of the separation tower, wherein the gas distributor comprises a perforated plate and a distribution plate arranged in a vertical mode, and the top end of the perforated plate is fixedly connected with the bottom end of the defoaming device. The present application is provided with a periodic change of the overlapping area of the small through hole and the large slot, which is equivalent to the dynamic adjustment of the cross-sectional area of the gas channel. The cross-sectional area change when the gas passes through will cause flow velocity fluctuation, so as to form turbulent flow in the hole channel. The flow velocity change causes pressure fluctuation, promotes the more uniform diffusion of the gas in the downstream space, avoids the formation of local high-pressure or low-pressure areas, and the indirect effect of the anti-blocking function on the gas flow will reduce the actual flow area due to the particle accumulation.

The utility model discloses a kind of mineral processing froth trough for flotation workshop, belong to mineral processing froth trough field, it includes froth trough main body, the side fixed connection of froth trough main body has connecting frame, the side fixed connection of connecting frame has protective shell, the side fixed connection of protective shell has connecting block, the side fixed connection of connecting block has motor;Through the cooperation of above each device, through the motor of being set and through connecting block symmetry fixed in protective shell, cooperate the adaptive design of protection shaft and motor output shaft, effectively reduce the shaking and vibration when motor operates, ensure that mixed plate stable agitator slurry.Meanwhile, the heat generated by the multiple heat dissipation openings on the protective shell can be dissipated in time, preventing the performance of the motor from being degraded due to high temperature, thereby ensuring the continuous and efficient operation of the mineral processing froth trough, improving the mixing and flotation of minerals, and ensuring the recovery rate and grade of mineral processing.

A method and apparatus for separating selected particles from a mixture of particles in a fluid, the method including the steps of: forming a substantially uniform mixture of liquid, gas bubbles with attached selected particles and non-selected particles in a contacting vessel; conditioning the liquid mixture so as to hydrophobize the selected particles; feeding the mixture from the contacting vessel to a rotating separation vessel where the mixture is subject to centrifugal forces and separates into a layer of froth containing bubbles with attached selected particles overlaying a layer that consists essentially of liquid and particles that have not attached to bubbles; removing the froth layer including the selected particles as the flotation concentrate; and collecting the underlying liquid stream as the tailings.

Described herein are methods of reducing the viscosity of products of sulfide ore froth flotation. A froth overflow, or an underflow of sulfide ore flotation is treated using a nonionic compound to reduce the viscosity of a froth or an underflow. The lowered viscosity imparts several benefits in sulfide ore processing of copper and molybdenum metal products, including increased rate of sedimentation to yield a concentrated product.

The invention relates to the field of mineral flotation, in particular to a high-efficiency foaming mineral flotation device which comprises a supporting frame, a rotating cylinder, an upper cover, a sliding frame, a large spring, a motor, a speed reducer, a power wheel mechanism and a pulley, the rotating cylinder is arranged on one side of the top of the supporting frame and comprises a cylinder body and a power plate, and the power plate capable of moving up and down is arranged in the cylinder body. An air inlet pipe is arranged in the center of the lower end of the barrel, annular peripheral teeth are arranged on the side face of the barrel, an air inlet cavity is formed in the barrel and communicated with the air inlet pipe, three sets of bubble generators are evenly arranged on the inner wall of the barrel, a transmission mechanism meshed with the barrel is arranged on one side of the barrel, the transmission mechanism is in linkage with a speed reducer, and the speed reducer is in transmission with a power wheel mechanism. The power wheel mechanism is arranged on one side of the rotating cylinder and connected with the pulley through a traction rope, and the other end of the traction rope bypasses the pulley and is fixed to the sliding frame. The power plate capable of moving up and down sweeps the elastic brush to generate vibration, and strong ejection is formed for foaming.

Modifier compositions, improved sparge compositions for froth flotation separation containing the modifier compositions, and improved methods of froth flotation using the modifier compositions have been developed, as well as kits including the modifier composition for industrial use. The modifier compositions obtain both improved yield and a higher grade of a targeted mineral product in froth flotation of one or more phosphate, lithium, and / or iron ores, while avoiding excess foam formation during the flotation.

The invention discloses a method for high-value utilization of coal gangue and oily sludge. The method comprises the following steps: 1) raw material pretreatment: adding water into coal gangue to prepare slurry, and then conveying the slurry to a ball mill for ball milling treatment; shearing and stirring the oily sludge to a uniform flowing state; (2) size mixing: mixing the pretreated coal gangue with the oily sludge, then carrying out size mixing, and then adding a regulator, an inhibitor and a foaming agent; (3) collaborative flotation: carrying out foam flotation on the pulp subjected to pulp mixing, scraping out a formed mineralized foam layer, and carrying out filter pressing and dehydration to obtain high-calorific-value power fuel; the flotation tailings are directly used for preparing the porous ceramsite after being dehydrated and aged. According to the method, oil substances in the oil-containing sludge are used as the flotation collecting agent to replace a commercial collecting agent, so that the flotation cost is remarkably reduced, and meanwhile, resource utilization of oil in the oil-containing sludge is realized; and meanwhile, oil in the oily sludge serves as an'in-situ 'collecting agent and makes contact with coal gangue carbon more sufficiently, the collecting efficiency is high, and the carbon recovery rate can be increased easily.

The present disclosure relates to a froth flotation unit comprising: a flotation tank (101, 201); a foam collection chute (105, 205) having a foam overflow lip (106, 206); and a near coarse grain chute (107, 207) having a second lip (108, 208). The second lip (108, 208) is arranged closer to the bottom (103, 203) of the flotation tank (101, 201) than the foam overflow lip (106, 206).

This invention relates to the field of computer graphics physical simulation technology, specifically to a solid-liquid-gas multiphase simulation method and apparatus for froth flotation processes. The method includes: performing fluid dynamics and mixture theory analysis on the multiphase flow composed of slurry and flotation reagents during flotation, establishing a multiphase flow simulation model of slurry and flotation reagents based on the volume fraction method; simulating the introduction of air and foam during flotation, constructing a unified calculation method and interaction mode based on the force relationship between foam and fluid, and completing the gas-liquid coupling between foam and slurry; and constructing a simulation model of hydrophilic and hydrophobic flocs based on multiphase flow and surface tension simulation methods, combined with the property of flotation reagents changing the hydrophilicity and hydrophobicity of mineral particles, thereby realizing the multiphase fluid environment within the flotation cell and the solid-liquid coupling between mineral particles. This invention solves the dependence on manual operation for state perception and control parameter adjustment in the flotation process, providing mechanistic analysis and visual verification for improving foam grade and optimizing the flotation process.

The present application relates to coal gasification ash separation technical field, specifically disclose a kind of coal gasification ash deep separation processing device, including rack, slurry mixing barrel is fixedly installed on the rack, weighing barrel is movably installed on the upper side of rack, grinding machine is fixedly installed on the upper side of weighing barrel, one side of rack is provided with foam flotation machine, weighing mechanism is arranged between rack and weighing barrel, driving stirring cleaning mechanism is arranged in the inside of slurry mixing barrel, driving stirring cleaning mechanism is driven by driving trigger assembly, temporary storage bin mechanism is arranged between weighing barrel and grinding machine, scraper is rotatably installed on foam flotation machine, foam collection tank is arranged on the side of foam flotation machine, emergency intercepting plate is rotatably installed on foam flotation machine, liquid level trigger assembly is arranged in the inside of foam flotation machine, the present application realizes that ash is quantitatively fed and is fully mixed with quantitative water, slurry mixing barrel is self-cleaning after flotation separation is finished, and overall ash separation effect is effectively improved.

The invention discloses an electric potential sorting machine and flotation machine combined sorting system and method, and belongs to the technical field of mineral sorting. The problems that an existing mineral separation process is high in treatment lower limit, poor in separation effect and difficult in high-precision separation of mineral particles with extremely fine particle sizes and disseminated particle sizes are solved. The separation system comprises a selected mineral particle separation unit, a flotation unit and an electrokinetic potential separation unit. The selected mineral particle separation unit is respectively connected with the flotation unit and the electric potential separation unit; after the selected ore pulp is separated by the selected mineral particle separation unit, an obtained underflow product of the grading cyclone enters the flotation unit through a first discharge hole for flotation treatment; and an overflow product of the grading cyclone enters an electric potential separation unit through a second discharge hole for separation treatment. According to the method, the mineral can be subjected to whole-size-fraction separation and recovery, the separation lower limit of + 38 microns of traditional foam flotation is broken through, and high-precision separation of mineral particles of-38 microns can be achieved.