169 results about "Ironstone" patented technology

The invention relates to the technical field of ore particle screening, and discloses high-recovery-rate micro-fine-particle magnetite ore dressing equipment which comprises a mounting frame, a protective shell is fixedly mounted on the mounting frame, a screening assembly is arranged on the protective shell, and the screening assembly comprises a three-way pipe. In order to enable the high-recovery-rate micro-fine-particle magnetic iron ore preparation equipment to be suitable for efficient separation of high-added-value micro-fine-particle iron ore, the screening assembly is arranged, the screening assembly is matched with a power motor to drive a large belt wheel through a small belt wheel and a transmission belt, an output shaft drives an auger rod to push ore in a three-way pipe, feeding blockage is avoided, and the high-recovery-rate micro-fine-particle magnetic iron ore preparation equipment is suitable for efficient separation of high-added-value micro-fine-particle iron ore. And meanwhile, a centrifugal motor drives a trilateral frame to drive a centrifugal screen drum to rotate at a high speed, fine particles fall into a discharging hopper through screen holes by utilizing centrifugal force, and coarse particles are discharged from a first discharging pipe through a mounting drum. And the stirring paddle rotates synchronously to prevent the fine particles from accumulating in the funnel.

The invention discloses a beneficiation method of refractory iron ore with symbiotic hematite, limonite and siderite, which comprises the following steps of: crushing weakly magnetic refractory iron ore to below 100mm in a closed circuit, then sequentially carrying out three times of dry screening to obtain four particle fractions of 0-6mm, 6-15mm, 15-40mm and 40-100mm, pre-selecting the particle fractions of 6-15mm by adopting a dry high-intensity magnetic separator, pre-selecting the particle fractions of 15-40mm by adopting a chunk jigger, pre-selecting the particle fractions of 40-100mm by adopting a photoelectric intelligent separator, and pre-selecting the particle fractions of 40-100mm by adopting a high-intensity magnetic separator; photoelectric intelligent pre-selected concentrate is crushed to 0-40 mm through a fine crushing closed circuit, then jigging pre-selected concentrate is combined, then the photoelectric intelligent pre-selected concentrate is crushed to 0-6 mm through an ultra-fine crushing closed circuit, an ultra-fine crushing product is combined with the 0-6 mm fraction, then wet type strong magnetic pre-selection is conducted through a coarse grain wet type strong magnetic separator, the pre-selected concentrate is subjected to ore grinding-fine grain wet type strong magnetic one-coarse one-scavenging one-coarse one-scavenging one-fine one-scavenging reverse flotation, and the final concentrate is obtained. And final concentrate is obtained. The invention has the advantages of large raw ore selection granularity, large tailing discarding amount, low energy consumption, good separation effect and the like.

The invention belongs to the technical field of mineral product detection, and particularly relates to an iron ore iron element content detection method which is used for iron ore detection and comprises the steps that 1, an unmanned aerial vehicle is used for carrying out detection path planning, and communication is carried out in cooperation with Internet of Things data in a region so as to reach a designated cargo position; step 2, acquiring spectral data and performing data processing; 3, performing spectral line identification and classification by using a machine learning model; and 4, improving the learning model, on one hand, improving the efficiency and reducing the time consumed by manpower, and on the other hand, learning through the machine model, and improving the accuracy and efficiency of ore detection, so that the requirements of commodity transactions are better met, and the efficiency of production activities is improved.

The invention provides a foundation pit water gushing iron ore grading thixotropic blockage reduction method which comprises the steps that iron ore tailings are crushed and screened into multi-stage particle size particles, and a customized mold is subjected to 3D printing based on foundation pit scanning data; paving particles in a mold layer by layer, doping iron powder, and cementing and curing cement paste to form a prefabricated body; the prefabricated body is installed to a water gushing area, the slurry viscosity is increased through a grading contact network, a weak gravitational flow state is triggered to be transiently changed to an anti-scouring state, and water flow speed reduction is achieved; alternating field induction micro-vibration is synchronously started during lateral grouting, and grout permeation and bubble discharge are driven; after solidification, the guide core body is pulled away, and remaining pore channels are self-compacted by a grading system to form an anti-seepage structure. The method has the advantages that the anti-scouring performance is enhanced; particle-slurry-foundation pit curved surface triple self-adaptive combination is carried out; the engineering cost is reduced.

The present invention relates to a production expert system-based iron ore blending optimization method. The method comprises: firstly, performing data enhancement on historical ore blending and beneficiation data by means of an improved generative adversarial network; then, establishing a case library, and by means of a case retrieval method, establishing a relational model between blended ore properties and ore concentrate grades on the basis of the historical ore blending and beneficiation data and expert experience; then, on the basis of material balance, establishing a blended ore property prediction mechanism model to realize blended ore property estimation after ore blending; and finally, by taking an optimal ore beneficiation concentrate grade and a maximum difficult-to-beneficiate ore use amount as optimization objectives, determining constraints on the basis of actual working conditions, obtaining a set of ore blending proportion non-inferior solutions by means of a multi-objective grey wolf algorithm, and deciding an optimal solution by means of a TOPSIS algorithm. The present invention has the following advantages: while ensuring the quality of ore beneficiation products, reasonable ore blending proportions are calculated, the use amount of difficult-to-beneficiate ores is increased, the sustainable mining capacity of mines is improved while ensuring the mining and beneficiation benefits, and the invention has universal applicability.

The embodiment of the invention provides an iron ore price evaluation method based on component prices, which relates to the technical field of ferrous metallurgy, and comprises the following steps: optionally selecting one iron ore as reference iron ore, and measuring the content value of each chemical component in the reference iron ore and to-be-evaluated iron ore, calculating the content difference value of the iron ore to be evaluated on the same chemical component relative to the reference iron ore; obtaining the price of each chemical component of the to-be-evaluated iron ore, adjusting the symbol of the price of the chemical component according to the contribution of the processing cost of the to-be-evaluated iron ore, and multiplying the content difference value of each chemical component by the price of the corresponding chemical component to obtain the cost difference of the corresponding chemical component based on the reference iron ore; and adding the cost differences of all the chemical components based on the reference iron ore to obtain the converted cost of all the chemical components, and adding the current purchase price of the to-be-evaluated iron ore to the converted cost to obtain the actual use cost of the to-be-evaluated iron ore based on the reference iron ore.

The invention discloses a separation reagent for promoting flotation of iron ore and associated iron-containing silicate, which is used for adsorbing excessive Ca < 2 + > ions in flotation circulating water and selectively separating specularite and chlorite for reverse flotation. The agents are sequentially added in a proper pH environment and are subjected to reverse flotation operation, floatability difference between iron ore and iron-containing silicate can be effectively promoted, redundant Ca < 2 + > in flotation circulating water is reduced, and the quality of iron ore concentrate can be improved through a reverse flotation means. Compared with the prior art, the flotation agent has the advantages that the flotation agent is high in flotation environment applicability, good flotation performance can be kept in a common environment with the pH being 6-8, meanwhile, the excellent separation effect can be achieved under the low-dosage condition, and the phenomenon that Ca2 + ions are excessive due to the fact that mining filling bodies fall and are mixed into concentrate can be effectively improved. Compared with single use of traditional iron ore inhibitor starch and dextrin, the method has the advantages that better iron ore concentrate indexes can be obtained through a reverse flotation means by using a pre-adsorption agent system, and meanwhile, the phenomenon that excessive Ca < 2 + > ions are entrained and dissolved out from concentrate gangue is further reduced.

The invention discloses a sulfur-containing magnetite beneficiation method which specifically comprises the following steps: S1, raw material preparation: crushing sulfur-containing magnetite to obtain small-particle sulfur-containing magnetite; s2, physicochemical property determination: detecting the particle size of the small-particle sulfur-containing magnetite, the content of magnetite in the small-particle sulfur-containing magnetite and the content of sulfur minerals in the small-particle sulfur-containing magnetite; s3, magnetic separation: according to the physicochemical properties of the small-particle sulfur-containing magnetite detected in the step S2, automatically controlling the magnetic field intensity of a magnetic separation process through a controller, and carrying out magnetic separation to obtain magnetite and sulfur-containing ore; the magnetic field intensity of the magnetic separation process is dynamically adjusted according to the iron ore particle size of the sulfur-containing magnetite, the magnetite content in the sulfur-containing magnetite and the sulfur mineral content, the trends of iron minerals and sulfur minerals are accurately controlled, optimal adjustment of the element trends is achieved, and the recovery rate of iron and sulfur is increased.

The invention belongs to the technical field of hematite ore mining, and particularly discloses a hematite ore particle strong magnetic separation device which comprises a screening cylinder, a hopper is fixed to the top of the screening cylinder, the top of the screening cylinder is closed, and a conical material guide block is arranged at the position, close to the bottom edge, in the screening cylinder. A plurality of supporting rods are fixed to the outer surface of the conical material guide block in the circumferential direction at equal intervals, one ends of the multiple supporting rods are correspondingly fixed to the inner wall of the screening barrel, and an electromagnetic screening device for screening iron ore particles is arranged on the conical material guide block. A supply device for conveying iron ore particles is arranged at the position, close to the top edge, in the screening barrel, and a plurality of auxiliary devices are arranged in the conical material guide block; according to the hematite detritus collecting device, by arranging the supply device, the electromagnetic screening device and the auxiliary device, crushed hematite detritus with the high iron content can be collected, and detritus blocks or hematite detritus blocks with the extremely low iron content can be screened out.

To identify iron ore having high dephosphorization efficiency by a reduction heat treatment method.SOLUTION: The present invention relates to a method for sorting iron ore that facilitates removal of phosphorus by a reduction heat treatment technique, the method including an X-ray diffraction measurement step of performing X-ray diffraction measurement on the iron ore. The iron ore is determined to be more easily subjected to phosphorus removal by the reduction heat treatment technique as a shift, relative to a goethite reference peak, of at least one peak attributed to goethite observed in an X-ray diffraction pattern becomes larger.SELECTED DRAWING: Figure 1A

The invention provides a method for determining boron element in iron ore, which comprises the following steps: weighing 0.2 g of sample, uniformly mixing with a flux, heating to red at 700-800 DEG C, cooling, adding sodium peroxide for secondary melting, dissolving in water, and transferring to a beaker; adding ethanol to boil, fixing the volume to 500mL, filtering and taking 100mL, adjusting the pH value, adding hydrogen peroxide to slightly boil, cooling, adding barium carbonate to boil, diluting and filtering, and taking 25mL for color development determination. According to the method, sodium carbonate and / or potassium carbonate and sodium peroxide are adopted to form a composite flux, an iron ore sample is completely decomposed through secondary melting and step-by-step dissolution, and the sample decomposition efficiency is improved; the method is stable in recovery rate, is superior to a conventional method in precision, can accurately measure the boron content in the iron ore, meets the technical requirements on boron element detection in the fields of ferrous metallurgy, geological exploration and the like, provides an efficient and reliable detection means for boron content analysis, and ensures the accuracy and reproducibility of a detection result.

The invention relates to the technical field of iron content detection, in particular to an iron ore total iron content detection method and system based on spectral analysis, and the method comprises the steps that after spectral data of iron ore are obtained, an improved envelope line method is adopted for preprocessing the spectral data, determining the local maximum value point of the spectral data by adopting a sliding window method, specifically, determining the size of a window for searching the local maximum value point of the spectral data by adopting the sliding window method according to the number of data points of a maximum characteristic peak of a spectral curve of the spectral data, so that the robustness of determining the local maximum value point of the spectral data is improved; when the envelope line node is determined, not only is the local maximum value considered, but also the intersection point of the fitting curve of the spectrum curve is considered, and the feature points in the two aspects are taken as the envelope line node, so that the envelope line node is determined more accurately, and the characteristics of the spectrum curve can be reflected better.

The invention discloses a combined beneficiation process for weathering crust type high-mud-content magnetic, red and brown mixed iron ore, which comprises the following steps: carrying out crushing, dry screening, ore washing, high-pressure roller milling and wet screening on raw ore to obtain selected products with qualified granularity, and carrying out low-intensity magnetic separation on the selected products to obtain magnetic separation iron ore concentrate and low-intensity magnetic separation tailings; the low-intensity magnetic separation tailings are subjected to high-intensity magnetic separation, rotational flow classification and chute gravity separation to obtain gravity separation iron ore concentrate, chute gravity separation tailings and rotational flow classification overflow and high-intensity magnetic scavenging tailings, and the chute gravity separation tailings are subjected to ore grinding classification and high-intensity magnetic roughing to obtain high-intensity magnetic roughing concentrate and high-intensity magnetic roughing tailings; the strong magnetic roughing concentrate and the rotational flow grading overflow are combined and then subjected to reverse flotation, flotation iron concentrate and reverse flotation total tailings are obtained, and a reverse flotation collecting agent MX is a mixture of ether amine, ether diamine and quaternary ammonium salt according to the molar ratio of 1: (1.2-2.0): (1.5-2.5). The method has the advantages of being good in separation effect, stable and reliable in technological process, high in applicability, relatively low in mineral separation energy consumption and cost, extremely small in environmental pollution and high in comprehensive economic benefit.

The invention relates to the technical field of sampling equipment, in particular to a sampling device for iron ore detection, which comprises a plurality of symmetrically arranged stand columns, every two of the plurality of stand columns form a group, the tops of the two stand columns in the same group are jointly and fixedly connected with I-shaped steel rails, the tops of the two I-shaped steel rails are jointly provided with a transverse moving mechanism, and the transverse moving mechanism is provided with a lifting mechanism. The lifting mechanism and the sampling mechanism are used in cooperation, iron ore powder is conveyed into the sampling barrel through rotary lifting of a plurality of screw rods, multi-point synchronous sampling and sampling inspection of the iron ore powder are achieved, compared with single-point sampling, the working efficiency is high, after multi-point sampling, the sampling efficiency is high, and the sampling efficiency is high. The sampling mechanism is drawn out of iron ore powder, a plurality of sampled samples enter the stirring box from the material leakage opening along with continuous rotation of the driving gear, under the action of the premixing assembly, primary premixing of the samples is achieved, and the pressure of the follow-up mixing step is reduced.

The invention discloses a combined determination method for the tin content of iron ore, which is characterized by comprising the following steps: drawing a calibration curve; selecting measurement parameters of an instrument; weighing a sample; sample melting: uniformly mixing the weighed sample with a mixed flux in a certain proportion, and melting in a muffle furnace; extracting a sample: extracting the fused sample by using hydrochloric acid, and fixing the volume for detection; and sample determination: determining by using an inductively coupled plasma emission spectrometer, determining the intensity value of each element by drawing a standard curve method, and calculating the final content of the element according to a calibration curve made by a standard solution. The invention aims to provide the combined determination method for the tin content of the iron ore, through experiments, the accuracy of determining the standard substance and the tin element of the tin-containing iron ore can be guaranteed, and through standard recovery experiments, the recovery rate is 95% or above. The method is used for production practice, and is an effective and practical method.

The present invention relates to the field of preparation of high-strength fracturing proppants, and particularly relates to a high-strength fracturing proppant prepared from alumina and a preparation method thereof, which is mainly made of the following raw materials in parts by weight: 50-60 parts of bauxite, 20-30 parts of calcined bauxite, 3-8 parts of coal gangue, 8-13 parts of alumina tailings, 3-7 parts of iron ore, and 7-10 parts of a reinforcing agent; the preparation method of the reinforcing agent comprises the following steps: S11: taking zirconia and yttrium oxide, crushing and mixing them, and then sintering them at 1500-1700 °C to prepare a premixed material; S12: mixing the premixed material prepared in step S11 and calcium carbonate according to a mass ratio of (4-6):(6-7) to obtain the reinforcing agent. This application has the advantage of improving the mechanical properties of the proppant prepared from bauxite.

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.

A pellet production method that can suppress bursting of green pellets can be provided. The method for producing an iron ore pellet includes grinding iron ore with iron content of 63 mass % or less to obtain ore powder, in which a volatile matter of the iron ore is 3.3 mass % or more, the ore powder has a cumulative 90% diameter of 150 μm or less in a volume-based particle size distribution and a particle size distribution index based on the harmonic mean diameter of 14,700 or more and 510,000 or less.

The invention relates to the technical field of ultra-pure iron concentrate powder calcination, in particular to electromagnetic induction heating calcination equipment applied to production and processing of ultra-pure iron concentrate powder, which comprises a horizontal mounting base and a driving motor. According to the electromagnetic induction heating calcining equipment applied to production and processing of the ultra-pure iron ore concentrate powder, the electromagnetic induction heating module is adopted, electric energy can be rapidly converted into heat energy, the heat energy is mainly transmitted in a self-induction heating mode in ore, iron ore can rapidly reach the needed high temperature, the heating speed is high, the production efficiency is greatly improved, and the production cost is reduced. The energy-saving effect is obvious; the heating temperature and power can be accurately controlled through electromagnetic heating, energy waste caused by inaccurate temperature control in a traditional mode is avoided, real-time adjustment can be conducted according to production requirements, and the energy utilization efficiency is further improved; the uniform magnetic field is generated by electromagnetic heating, so that the temperature of the whole mineral powder is uniformly increased, the stability and the consistency of the product quality are ensured, and a high-quality calcined product is favorably obtained.

The utility model relates to the technical field of iron ore separation and screening, in particular to an iron ore separation and screening device, which is provided with a rotating mechanism and a filtering mechanism, so that materials can rotate in multiple directions in the iron ore separation and screening process, the blockage of the materials is reduced, and the filtering efficiency is improved. Comprising a feeding mechanism; the device further comprises a flushing mechanism, a discharging mechanism, a rotating mechanism and two filtering mechanisms, the flushing mechanism is installed at the lower end of the feeding mechanism, the discharging mechanism is installed on the flushing mechanism, the rotating mechanism is installed in the feeding mechanism, and the two filtering mechanisms are installed on the rotating mechanism; the feeding mechanism is used for feeding, the flushing mechanism is used for flushing, the discharging mechanism is used for discharging, the rotating mechanism is used for rotating, and the filtering mechanism is used for filtering.

This invention relates to a rapid iron ore grade identification method based on image processing for on-site application during mining. The method comprises the following steps: 1) acquiring digital images of iron ore samples of different grades from the mining area and establishing an iron ore grade identification model using a deep learning algorithm; 2) using this identification model to rapidly identify the iron ore grade within the boreholes of each blasting unit block, then estimating the iron ore grade of each unit block using the inverse power of distance method based on this grade, and finally calculating the iron ore grade of the entire blasting area using the inverse power of distance method for each unit block. The advantages of this invention are: it overcomes the shortcomings of complex procedures, large computational load, and long time consumption in determining iron ore grade in mining areas; the identification time for a single image is only 0.3 seconds. Compared with laboratory test values, the identification accuracy can reach 90%, achieving rapid on-site identification and estimation of iron ore grade, laying the foundation for building intelligent mines.

Various embodiments include processes for purifying and / or preparing iron-bearing materials. Various embodiments include the purification and / or preparation of iron ore, iron, and intermediates thereof. Various embodiments include a method of purifying an iron-bearing material comprising leaching one or more soluble species of impurities from the iron-bearing material using a leach solution comprising fluorine.

The utility model discloses an iron ore value analysis device which comprises a grade analyzer which comprises a gun head and a handle, and the gun head is fixed at the upper end of the handle; the first protection assembly comprises first fixing plates, a first connecting shaft, a first torsional spring, a first protection plate and a limiting column, the first fixing plates are fixed to the middle of the lower surface of the gun head and located on the side edge of the top of the handle, the first connecting shaft is fixed between the first fixing plates, and the first torsional spring is connected to the first connecting shaft in a sleeving mode; one end of the limiting column is fixed to the lower end of the side edge of the first protection plate, and the other end of the limiting column is attached to the handle. The utility model relates to an iron ore grade analyzer, and aims to solve the problem that when the iron ore grade analyzer is used, an operator holds a handle, presses a button and starts an X-ray, and the X-ray is a radiation source, so that the risk of radiation exposure to the operator and the surrounding environment is possibly caused if the X-ray is emitted due to misoperation.

The invention discloses an efficient and energy-saving mineral processing technology for weathered crust type magnetic hematite and brown mixed iron ore. The efficient and energy-saving mineral processing technology comprises the following steps that (1) raw ore is subjected to crushing, dry screening, ore washing, high-pressure roller grinding and wet screening, and selected products with qualified particle sizes are obtained; 2) performing low-intensity magnetic separation on the selected product to obtain magnetic separation iron ore concentrate and low-intensity magnetic separation tailings; (3) the low-intensity magnetic separation tailings are subjected to high-intensity magnetic separation, rotational flow classification and chute gravity separation to obtain gravity separation iron ore concentrate, chute gravity separation tailings and rotational flow classification overflow and high-intensity magnetic scavenging tailings; and (4) the chute reselection tailings are subjected to ore grinding classification and strong magnetic roughing to obtain strong magnetic roughing concentrate and strong magnetic roughing tailings, and the strong magnetic roughing concentrate and the rotational flow classification overflow are combined and then subjected to reverse flotation to obtain flotation iron concentrate and reverse flotation total tailings. According to the method, more than 50% of qualified selected products can be obtained through ore washing operation before entering a high-pressure roller mill, the ore grinding amount is greatly reduced, the over-crushing phenomenon is avoided, and the comprehensive utilization rate of the type of resources is remarkably increased through a magnetic separation, reselection and flotation combined beneficiation method.

The present invention proposes a hydrogen-based magnetization reduction process for hematite ore, belonging to the field of metallurgy technology, comprising: 1) generating saturated high-temperature gas; 2) mixing the temperature within the saturated high-temperature gas; 3) causing the saturated high-temperature gas to collide countercurrently with powdered hematite ore in a rotary kiln, the saturated high-temperature gas transferring heat to the powdered hematite ore and a reducing agent, causing the reducing agent to pyrolyze at high temperature to produce a large amount of reducing hydrogen gas, which penetrates into the powdered hematite ore layer and undergoes a hydrogen-based magnetization reduction reaction with the powdered hematite ore, thereby magnetizing the powdered hematite ore. The present invention provides sufficient time for the temperature to transfer from the surface of the iron ore particles to the core of the iron ore particles, thereby avoiding the phenomenon of "ringing" in the rotary kiln caused by the instantaneous excessive temperature of the iron ore surface and the inability to transfer the temperature to the core of the iron ore particles in a timely manner.

The application discloses an iron ore element component analyzer and particularly relates to the technical field of ore component detection. The length of the ore analysis equipment can be adjusted through the telescopic adjusting assembly, so that the ore analysis equipment can be put into narrow gaps for detection, avoiding the trouble of breaking and disassembling the ore for detection and the damage to the ore. In addition, the auxiliary adjusting structure can cooperate with the telescopic adjusting assembly to control the movement of the tooth rod, so that the tooth rod and the rotary transmission structure are engaged and transmitted, the ore analysis equipment is adjusted in angle, the different surfaces of the corresponding ore in the narrow gap can be adjusted, the detection of the ore elements is facilitated, the telescopic adjusting of the ore analysis equipment can meet the detection of the gaps with different depths and different positions, and the detection of the iron ore elements is more flexible through the angle.

The utility model discloses an iron ore multistage vibrating screen which comprises a bottom plate, the top end of the bottom plate is fixedly connected with a screening mechanism, the screening mechanism comprises a first connecting column, the first connecting column is fixedly arranged at the top end of the bottom plate, and the bottom end of the first connecting column is fixedly connected with a first motor. The driven rotating disc is driven to rotate through the transmission belt, the eccentric column converts rotating motion into reciprocating swing of the driving column, the driving column pushes the screening disc to conduct high-frequency vibration through the second fixing column, iron ore is layered according to the particle size under the vibration effect, small-particle iron ore and impurities fall down through screening holes, and large-particle iron ore stays on the surface of the screening disc. When the first motor stops working, large-particle iron ore can be manually taken out, the static contact time of the ore and impurities is shortened through dynamic screening, it is avoided that the impurities are embedded into the ore in the crushing process, efficient and uniform screening is achieved through the multi-stage linkage design, and the impurity embedding risk is remarkably reduced.

1. Name of the product of this design: Tracked Mobile Heavy-Duty Screening Station (KSZ‑800E). 2. Application of the product with this design: It is used in mining, metallurgy, building materials, chemical industry, ceramics and other industries. It can screen stones of different particle size ranges such as basalt, andesite, diabase, pebbles, quartz stone, wollastonite, granite, gold ore, iron ore, etc. 3. The key design point of this design product lies in the combination of shape and pattern. 4. The picture or photo that best illustrates the design points: three-dimensional picture. 5. The bottom surface of this design product is difficult to see or cannot be seen during use, so the top view is omitted.

The application discloses a reagent for promoting the flotation separation of iron ore and associated iron-containing silicates, which is used for adsorbing excessive Ca 2+ Ions in the flotation circulating water and selectively separating specularite and chlorite by reverse flotation. The reagent is sequentially added in a suitable pH environment and reverse flotation operation can effectively promote the difference in floatability between iron ore and iron-containing silicates and reduce the excessive Ca 2+ Ions in the flotation circulating water. The quality of iron concentrate can be improved by reverse flotation. The reagent has high adaptability to the flotation environment and can maintain good flotation performance in a common environment with pH=6-8. Excellent separation effect can be achieved under the condition of low dosage, and the phenomenon of excessive Ca 2+ Ions in the flotation circulating water caused by the collapse of the mining filling body into the concentrate can be effectively improved. Compared with the conventional iron ore depressant starch and dextrin used alone, the pre-adsorption reagent system can obtain better iron ore concentrate index through reverse flotation, and further reduce the gangue inclusion and dissolved Ca 2+ Ions in the flotation circulating water.

The utility model discloses an automatic ore discharge de-ironing separator for mining, which comprises a frame body and a fixed frame, a conveyor belt is arranged in the frame body, the frame body penetrates through the fixed frame, a sliding plate is arranged in the fixed frame, first sliding chutes are arranged on both sides of the fixed frame, the sliding plate moves along the groove direction of the first sliding chutes, and the first sliding chutes are arranged on the fixed frame. A lead screw is rotationally connected into the fixing frame, the lead screw penetrates through the sliding plate and is in threaded connection with the sliding plate, a motor is fixedly connected to the top of the fixing frame, and one end of an output shaft of the motor penetrates through the fixing frame and is fixed to the lead screw. According to the iron remover, the distance between the magnetic ring and the conveying belt can be changed, so that iron ore or magnetic minerals can be better adsorbed and removed, the screening effect of iron impurities or magnetic minerals is improved, the adsorbed iron impurities or magnetic minerals can be conveniently separated from the magnetic ring, the use convenience of the iron remover is improved, and the iron remover is suitable for popularization and application. And workers can conveniently collect discharged iron impurities or magnetic minerals.