22 results about "Comminution" patented technology

A beneficiation arrangement for beneficiating a geological material is disclosed comprising a beneficiation path along which the geological material is displaced. It includes a sensor station on the beneficiation path comprising a plurality of sensors 5 for determining a property of the geological material and providing sensing information. The sensor station comprises a first sensor for determining a property of the geological material, and a second sensor for determining the property of the geological material more accurately than the first sensor. The second sensor is activated in dependence upon sensing information retrieved by the first sensor, 10 when the first sensor is unable to sense the property of the geological material with a threshold accuracy. The geological material is then sorted based on the sensing information of the activated second sensor. A method of beneficiating a geological material is also disclosed. 15 Fig. 1 5 10 material is also disclosed. 20 26 20 49 79 25 J un 2 02 6 2 0 2 6 2 0 4 9 7 9 2 5 J u n 2 0 2 6 1 / 1 100 Control unit Feeding conveyor 10 200 20 Primary crusher 30 Screen FG 41, 42, 43 40 Entrance area 53 F3 CS CS F1 51 F2 CS First sensor station First sensor station First sensor station 52 63 62 61 CS CS CS First sorting station First sorting station First sorting station 73 72 71 CS CS CS second sensor and second sensor and second sensor and sorting station sorting station sorting station CS CS CS CS CS CS Gangue dump 80 90 Comminution Fig. 1 20 26 20 49 79 25 J un 2 02 6 1 0 0 2 0 2 6 2 0 4 9 7 9 2 5 J u n 2 0 2 6 2 0 3 0 4 0 E n t r a n c e a r e a F 3 C S C S 5 1 F 2 C S 5 2 6 3 6 2 6 1 C S C S C S 7 3 7 2 7 1 C S C S C S s e c o n d s e n s o r a n d s e c o n d s e n s o r a n d s e c o n d s e n s o r a n d C S C S C S C S C S C S G a n g u e d u m p 8 0 9 0 C o m m i n u t i o n

The invention belongs to the technical field of ore grinding media, and particularly relates to a double-ellipsoid ore grinding medium and a manufacturing method thereof.The double-ellipsoid ore grinding medium comprises a first semi-ellipsoid and a second semi-ellipsoid, the plane of the first semi-ellipsoid is fixedly connected with the plane of the second semi-ellipsoid, and the long axis of the first semi-ellipsoid and the long axis of the second semi-ellipsoid are located on the same straight line; the length of the short axis of the first semi-ellipsoid is c, the length of the semi-major axis of the first semi-ellipsoid is a, the length of the short axis of the second semi-ellipsoid is c, the length of the semi-major axis of the second semi-ellipsoid is b, and blt; a. In the ore grinding process, along with rotation of the ball mill, the double-ellipsoid ore grinding medium is thrown off and impacts ore particles, the gravity center of the double-ellipsoid ore grinding medium deviates to the second semi-ellipsoid, the second semi-ellipsoid faces downwards during falling, the curvature of the second semi-ellipsoid is small, impact energy can be distributed more evenly in a particle bed, the smashing uniformity is improved, the over-smashing phenomenon can be effectively improved, and the service life of the double-ellipsoid ore grinding medium is prolonged. And meanwhile, the crystal penetration fracture degree caused by energy concentration is reduced, and selective dissociation of minerals is facilitated.

The application relates to the technical field of mineral processing automation, and discloses a crushing-grinding-flotation synergic process optimization method based on metal dissociation degree regulation, which comprises the following steps: acquiring multi-dimensional sensor data in a crushing-grinding-flotation production process in real time; establishing a benchmark prediction model offline based on historical process data; in an online running stage, quantifying and determining the working condition drift state of a current process system online; when it is determined that significant working condition drift occurs, constructing a residual compensation model online; fusing the prediction result of the benchmark prediction model and the prediction result of the residual compensation model to generate a final process index prediction value; and based on the final process index prediction value, solving through an optimization algorithm to generate a synergic control set value. The application greatly reduces the calculation cost and data requirement of model maintenance, and significantly improves the response speed and adaptability of the system to working condition changes, thereby ensuring the long-term stability and reliability of the synergic optimization effect.

The invention belongs to the field of ore smelting, and discloses a guinea bauxite crushing, screening and parallel dissolution method which comprises the following steps: crushing guinea bauxite, and screening to obtain an upper ore sample and a lower ore sample; mixing the upper ore sample and the circulating mother liquor, and dissolving out under high-pressure and high-temperature conditions to obtain iron-rich red mud; mixing the ore sample and the circulating mother liquor, and dissolving out under low-pressure and low-temperature conditions to obtain red mud; and reselecting the red mud to obtain concentrate and tailings. The extremely high-grade bauxite can be obtained through simple size grading without alkali grinding; then, the scheme of double-line parallel dissolution is matched, and the iron-rich red mud produced by loading the ore sample can be well applied to the iron and steel industry; and a good dissolution effect can be realized by feeding an ore sample.

A crushing device for crushing mineral material includes at least one crushing chamber boundary delimiting a crushing chamber, the at least one crushing chamber boundary including an inner face facing the crushing chamber and an outer face facing away from the crushing chamber. The crushing chamber boundary includes an inspection opening. A comminution device is received in the crushing chamber, the comminution device including at least one comminution tool. A sensor is configured to determine a state of wear of at least one wear part in the crushing chamber. A mounting is configured to hold the sensor. An actuator is configured to move the sensor at least partially through the inspection opening between a park position wherein the sensor is at least partially outside of the crushing chamber and a detection position wherein the sensor is at least partially inside of the crushing chamber.

A crushing device includes a crushing chamber. A comminution device is accommodated in the crushing chamber. The comminution device bears at least one comminution tool. The crushing chamber is delimited by at least one crushing chamber boundary. The crushing chamber boundary has an inner face facing the crushing chamber and an outer face facing away from the crushing chamber. The crushing chamber boundary has an inspection opening. A detection device is held by a mounting to be provided for determining the wear condition of the communition tool in the crushing chamber. The detection device may be moved between a park position and a detection position through the inspection opening preferably by means of an actuator, wherein the detection device is arranged in the detection position at least sectionally inside the crushing chamber and is arranged outside of the crushing chamber in the park position.

A method for reducing particle size of a particulate comprising feeding a feed material to a grinding mill having a power of at least 500kW, the mill having a specific power draw of at least 50kW per cubic metre of grinding volume of the mill and the grinding mill including a grinding media comprising particulate material having a specific gravity of not less than 2.4 tonnes / m3 and a particle size falling in the range of from about.0.8 to 8mm, grinding ’the feed material in the grinding mill and removing a product from the grinding mill, the product having a particle size range such that D80 of the product is at least about 20 microns.

The invention relates to a method for the combined thermal and mechanochemical activation of a mineral material, said method having the following steps: a) coarse comminution and drying of the mineral material, b) grinding and mechanochemical activation in a first high-energy grinding machine (40), and c) thermal activation in a thermal treatment device (90), step b) being carried out prior to step c), or step c) is performed before step b).

The utility model relates to mine ore crushing and sampling equipment which comprises a supporting machine frame for supporting a crushing processing shell, and a primary crushing assembly located on the upper layer and a secondary crushing assembly located on the lower layer are arranged in the crushing processing shell in a partitioned mode. A screening assembly and a division sample collecting assembly for collecting screened ore particle samples are further arranged below the secondary crushing assembly, and a splash-proof feeding shell for ore input is further arranged at the top of the crushing processing shell; the screening assembly is installed at the bottom of the supporting and smashing machining shell in the mode that the ore which is continuously smashed twice can be screened and connected with the supporting rack, and a waste box capable of collecting remaining materials is further arranged below the screening assembly. According to the utility model, sufficient sample ore grains with standard granularity and mixing degree can be obtained in a manner of multiple crushing and multi-process integration, so that the sampling efficiency and the sampling quality are improved, and the later detection accuracy and effect are ensured.

A method of operating a comminution process in a ball mill (10) including a rotatable shell (20) having an internal shell surface (22) with protrusions (310) configured to engage a charge of material (30) for grinding received solid material feed particles (115) by tumbling the material in the rotating shell (20) to generate product particles (95; 96), thereby causing a vibration. The method comprising rotating the shell (20); providing a solid material feed rate set point value for setting a solid material feed rate; analysing product particles (96); generating at least one product measurement value based on said product particle analysis being indicative of a product particle size; receiving a vibration signal indicative of said vibration; receiving a position signal indicative of a rotational position of said rotating shell; generating, based on said vibration signal and said position signal, at least one status parameter value indicative of said internal state including a toe position value; controlling via a regulator said product particle size based on said at least one status parameter reference value, said at least one status parameter value, and a correlation data set indicative of a causal relationship between a certain internal state and product particle size.

A method of operating a comminution process in a ball mill (10) comprising a rotatable shell (20) having an internal shell surface (22) having protrusions (310) configured to engage a material (30) charge for grinding received solid material feed particles (115) to generate product particles (95; 96) by tumbling the material in the rotating shell (20) to cause vibrations. The method comprises: rotating the shell (20); providing a solid material feed rate setpoint value for setting a solid material feed rate; analyzing product particles (96); generating at least one product measurement value based on said product particle analysis indicative of product particle size; receiving a vibration signal indicative of said vibrations; receiving a position signal indicative of a rotational position of said rotating shell; generating at least one state parameter value indicative of said internal state comprising a toe position value based on said vibration signal and said position signal; controlling said product particle size via a regulator based on said at least one state parameter reference value, said at least one state parameter value and a correlation data set indicative of a causal relationship between a particular internal state and product particle size.

The present invention relates to an installation for comminuting a mineral material, wherein the installation comprises a coarse material storage unit (10), a conveying device (20), and a comminution device (30), wherein the coarse material storage unit (10) and the conveying device (20) are connected to allow transfer of the material, wherein the conveying device (20) has a discharge end, wherein the discharge end is arranged above the comminution device (30), wherein a free-fall section for the material is arranged between the discharge end and the comminution device (30), wherein at least one metal sensor (40) is arranged above the conveying device (20), wherein the installation comprises a removal device (50), wherein the removal device (50) is arranged below the conveying device (20) and is designed to remove material from the free-fall section, characterised in that the metal sensor (40) is designed as a two-dimensional sensor array consisting of sub-sensors (41), wherein the removal device (50) comprises at least one first partial removal device (51) and one second partial removal device (52), wherein the first partial removal device (51) and the second partial removal device (52) are arranged next to one another.

The application discloses a crushing and grinding device, which comprises a frame, a crushing and grinding assembly and a driving unit, wherein the crushing and grinding assembly comprises a crushing unit and a grinding unit; the crushing unit comprises a plurality of crushing rollers arranged in a circle; the driving unit can drive the crushing rollers to rotate around the central shaft and form a ring-shaped grinding surface; the grinding unit comprises a mesh plate which is rotatably sleeved on the crushing rollers and forms a feeding port above the crushing rollers; a grinding cavity is formed between the grinding surface and the mesh plate; and the thickness of the grinding cavity gradually decreases from the first side to the second side and then gradually increases. The grinding material can be put into through the feeding port. The application has reasonable structure, low production cost and good grinding effect.

The utility model discloses a crushing device for lime processing, which comprises a processing box, a crushing component is arranged in the processing box, a part of the crushing component is arranged on the processing box, an auxiliary component is connected onto the crushing component, and a controller is arranged on one side of the processing box. Dust generated in the crushing process can be effectively captured and recycled, the dust is prevented from flying into air, meanwhile, potential hazards to the working environment and the health of operators are greatly reduced, lime can be effectively crushed multiple times through the crushing assembly, it is ensured that materials are fully crushed to the required particle size, and the crushing efficiency is improved. And the design of a filter plate and a guide plate is introduced into the crushing assembly, so that the flowing direction of materials can be better controlled, particles crushed to proper sizes can be separated in time, unnecessary repeated crushing is reduced, and energy is saved.

In a method for mineral comminution energy determination and intelligent liberation degree identification based on morphological characteristics of particles, magnetite ore is comminuted with a drop weight impact testing machine and then subjected to particle size classification. Liberation degrees of the comminuted particles of some particle size classes with small relative particle sizes when different comminution energy is applied are detected and recorded using a mineral liberation analyzer. Profiles of liberation degrees of different minerals are established according to the detected data. The profiles are analyzed to determine appropriate comminution energy E, and then the comminuted particles of the particle size classes with the comminution energy are scanned by an electron microscope to obtain electron microscope images. Proportions of intergranular fractures of the particle size classes are counted. Comminution energy E1 corresponding to the particle size classes is calculated based on a function.

A crushing device has a crushing chamber. A comminution device is accommodated in the crushing chamber and the comminution device bears at least one comminution tool. The crushing chamber is delimited by at least one crushing chamber boundary having an inner face facing the crushing chamber and an outer facefacing away from the crushing chamber. The crushing chamber boundary has an inspection opening. A detection device may be held by a mounting for determining the state of wear of the communition tool, disposed in the crushing chamber. The detection device can be moved through the inspection opening between a park position and a detection position, wherein the detection device is disposed outside of the crushing chamber in the park position, and in that, in the park position, the inspection opening is closed by means of a cover.

The utility model provides a tailing pretreatment and recovery integrated system, which relates to the field of mineral processing equipment, and comprises an integrated frame, and a crushing bin, a vibrating screen and a recovery box which are sequentially arranged from top to bottom, a mineral aggregate conveyor is further arranged on one side of the vibrating screen, and the bottom of the vibrating screen is connected with a liquid collection box. A feeding port corresponding to the discharging port of the liquid collecting box is formed in the top of the recycling box, the interior of the recycling box is vertically divided into a first cavity and a second cavity through a partition plate, a third cavity is further formed in the recycling box, and the third cavity is located on one side of the first cavity and the second cavity; the third chamber is connected with the first chamber and the third chamber through a first sieve plate and a second sieve plate, the first sieve plate is used for conducting primary separation and filtration on the primary disintegrating slag and biological leaching liquid, the second sieve plate is used for conducting secondary filtration on the biological leaching liquid, and the biological leaching liquid contains part of harmful substances; the aperture of the sieve plate II is smaller than that of the sieve plate I, so that impurities with smaller particle sizes can be filtered, and the solid-liquid separation effect is further improved.

The application discloses a kind of monitoring method and system of multistage crushing station, belong to the technical field of comminution machinery control.The method first according to the first image analysis of target ore Static discharge characteristics, if static discharge characteristics are all beyond standard particle size interval, then update the static discharge characteristics in the material overload interval of crushing equipment, generate discharge characteristic sequence.According to discharge characteristic sequence, calculate dynamic discharge characteristics, when dynamic discharge characteristics exceed particle size fluctuation threshold, further calculate the comprehensive working condition similarity of each crushing equipment's working condition fluctuation sequence and discharge characteristic sequence, according to comprehensive working condition similarity, identify target crushing equipment, and extract the lubricating oil sample of target crushing equipment, collect second image, extract abrasive grain characteristics through second image, according to abrasive grain characteristics, predict wear type, realize intelligent monitoring and accurate diagnosis to multistage crushing equipment running state and wear fault.

The utility model provides a kind of mineral broken grinding process system, it includes crushing workshop, roller mill workshop, material preparation store, first conveyor belt, second conveyor belt and third conveyor belt, first conveyor belt is used to convey the broken product of crushing workshop production to roller mill workshop, and roller mill workshop is equipped with material position metering device, when the storage capacity of broken product in roller mill workshop monitored by material position metering device exceeds preset maximum storage capacity, second conveyor belt is used to convey the broken product on first conveyor belt to material preparation store inside;When the storage capacity of broken product in roller mill workshop monitored by material position metering device is lower than preset minimum storage capacity, and crushing workshop is in closed state, third conveyor belt is used to convey the broken product in material preparation store to first conveyor belt, and is conveyed to roller mill workshop by first conveyor belt.The mineral broken grinding process system disclosed by the utility model can dynamically adjust the supply to roller mill workshop, which helps to improve the operating efficiency of the entire system.

The utility model discloses a quarrying device of a heading machine for tunnel construction, which comprises a protective shell, the top of the protective shell is fixedly connected with a supporting pipe, the top end of the supporting pipe is fixedly connected with an air collecting shell, the inner side of the air collecting shell is fixedly connected with a crushing shell, the inner side of the crushing shell is fixedly connected with an annular crushing block, and the annular crushing block is fixedly connected with a driving device. The utility model relates to the technical field of tunnel construction. According to the device, crushing teeth are arranged to preliminarily crush and cut rocks, large rocks are gradually crushed into small fragments, then the crushed rocks fall to the bottom of a crushing shell, meanwhile, an arc-shaped material pushing plate rotates to convey the crushed rocks into a conveying assembly, and therefore the rocks mined by the heading machine can be crushed again; and by arranging the conveying assembly, primary separation of impurities in the stone in the conveying link is achieved, and the purity of the stone can be improved.

There is provided an apparatus and method for comminuting a material. The apparatus may comprise a chamber and an inner surface with a plurality of protrusions, and a hammer positioned within said chamber comprising an outer surface having a plurality of second protrusions configured to engage with the first protrusions. The outer and inner surfaces may be separated by a gap distance which defines a comminution zone. The anvil may be rotated to cause a material to be comminuted as the material passes through the comminution zone.