34results about How to "Improve the efficiency of magnetic separation" patented technology

Disclosed is a method for removing magnetic particles from Fischer-Tropsch synthetic crude oil, comprising: a solid-liquid separation process in which solid components are separated from synthetic crude oil formed by a Fischer-Tropsch synthesis reaction; and a magnetic separation process in which magnetic particles present in the synthetic crude oil that has undergone the solid-liquid separation process are trapped, and the magnetic particles are separated from the synthetic crude oil. The magnetic separation process is conducted using a high gradient magnetic separator having a cleaning solution introduction line that introduces a cleaning solution to intermittently wash the trapped magnetic particles, and a cleaning solution discharging line that discharges the cleaning solution after the solution is used to wash the magnetic particles.

The invention discloses a dry and wet type cyclic magnetic separation method. A dry type magnetic separation method comprises the steps of a, grinding ores; b, performing pre-screening; c, performing reducing roasting; d, feeding materials; e, performing magnetic separation through an upper magnetic separation barrel; f, enabling the upper magnetic separation barrel to rotate to clean a storehouse; g, performing magnetic separation through a lower magnetic separation barrel; h, enabling the lower magnetic separation barrel to rotate to clean the storehouse; i, performing cyclic reciprocating magnetic separation; and j, rotating to discharge slag. A wet type magnetic separation method comprises the steps of a, cleaning impurities; b, performing filtering and pre-screening; c, feeding materials; d, performing magnetic separation through an upper magnetic separation barrel; e, enabling the upper magnetic separation barrel to rotate to clean a storehouse; f, performing magnetic separation through a lower magnetic separation barrel; g, enabling the lower magnetic separation barrel to rotate to clean the storehouse; h, performing cyclic reciprocating magnetic separation; and i, rotating to discharge slag. The device adopts a unique double-barrel circulating structure; when the circulating structure rotates to different positions under the driving of a driving device, river sand or metal mortar can be cyclically separated between the two hollow barrels. The whole process of the method is automatically controlled by a circuit, so that the waste of human resources is reduced, and the problems that a separation method is complicated, a separation process is long and the like are solved.

The invention relates to an annular porous nano magnetic bead separator which comprises a casing and magnet groups, wherein each magnet group adopts a tile shape, and the number of the magnet groups is an even number; the magnet groups are arranged in an accommodating cavity which corresponds to the shape of the magnet groups and is arranged in the casing in an annular manner; a tube hole for accommodating a tube is arranged on the casing between every two adjacent magnet groups; and the polarities of poles of every two magnet groups are contrary. The invention further relates to a mounting method of the annular porous nano magnetic bead separator. The annular porous nano magnetic bead separator and the mounting method thereof have the advantages that the utilization rate of magnets and the tube holes are effectively improved, the separation efficiency is improved, and the annular porous nano magnetic bead separator can be assembled easily. The annular porous nano magnetic bead separator belongs to the technical field of nano magnetic bead separation devices.

The invention discloses a wet-type circulation magnetic separation method which includes the following steps of a. washing and impurity removing; b. filtering and pre-screening; c. feeding; d. first-time magnetic separation; e. first-time opening and closing of (crescent) slurry leaking holes; f. first-time rotating spraying water recycling; g. second-time magnetic separation; h. second-time opening and closing of (crescent) slurry leaking holes; i. second-time rotating spraying water recycling; j. circulation reciprocating magnetic separation; k. rotating slagging; l. reverse floatation. The device adopts a unique double-cone circulation structure. When the circulation structure rotates to different positions under the drive of the driving device, and river sand or metal slurry can be separated in the two hollow cones in a circulation mode. The whole process is automatically controlled by a circuit, human resource waste is reduced, the problems of complex separation method and long separation process are solved, and the effectiveness of the magnetic separation is improved.

The invention discloses a wind dry type magnetic separator. The wind dry type magnetic separator comprises a rack, an enclosure, dust removing devices and a nonmagnetic cylinder screen roller, wherein the dust removing devices communicate with an inner cavity of the enclosure and are used for exhausting and removing dust; the nonmagnetic cylinder screen roller is arranged in the enclosure and is driven by a driving device to rotate; a feeding device is arranged above the nonmagnetic cylinder screen roller; a concentrate bin, a tailing bin and a discharging device are arranged below the nonmagnetic cylinder screen roller; a plurality of ventilation holes are formed in the roller surface of the nonmagnetic cylinder screen roller; a fixedly-arranged magnetic system is arranged inside the nonmagnetic cylinder screen roller; an air chamber communicating with the ventilation holes is also arranged in the nonmagnetic cylinder screen roller; the air chamber is connected with an air feeding device; a striker plate which is arranged along the rotating direction of the nonmagnetic cylinder screen roller in an extending manner from a discharge opening of the feeding device is arranged on the enclosure; and a space is reserved between the striker plate and the outer surface of the nonmagnetic cylinder screen roller. The wind dry type magnetic separator disclosed by the invention has the advantages that the structure is simple and compact, magnetic agglomeration and inclusion can be effectively reduced, the magnetic separation efficiency of materials is improved, and the like.

The invention belongs to the technical field of ore dressing, and particularly discloses a production method of albite. The production method comprises the following specific steps of S1, desilting; S2, ball grinding; S3, magnetic separation impurity removal; S4, drying, wherein concentrate pulp is added into a drying furnace to be dried to obtain solid concentrates; S5, calcining, the solid concentrates are transferred into a calcining furnace to be calcined, and the calcining temperature ranges from 1200 DEG C to 1350 DEG C; S6, impurity removal, wherein calcined ore is subjected to ball grinding, ball grinding is carried out till the particle size is smaller than 0.5 cm, and ore pulp is obtained; S7, flotation, wherein a sulfuric acid solution is added, the pH value of the ore pulp is adjusted to range from 6.0 to 6.5, then a collecting agent and a foaming agent are added, foam products are collected, and concentrate pulp B is obtained; and S8, oil removal. By means of the treatmentmethod, the main effective components of the albite can be purified, and impurities influencing the color of the albite can be effectively removed.

The invention discloses a multi-point well water coagulation and settlement device based on micro-magnetic coagulation technology. There is a machine head that can move along the X-axis and Z-axis on the top. The coagulant metering pump and the magnetic suspension metering pump are installed at the lower end of the machine head. There is a rotating motor under the machine head. The rotating motor is connected through the lower end of the steering transmission mechanism. On the outer edge of the turntable, there are several equally divided feeding slots, the feeding slots are connected with paddles, the front side of the turntable is equipped with an electromagnet, the slag discharge chamber on the frame at the end of the tank, and the The slag scraping mechanism in the slag discharge chamber. The magnetic separation mechanism of the invention integrates stirring, dosing and magnetic adsorption, has a high degree of integration, and can quickly and efficiently coagulate, settle and magnetically separate mine water.

The invention belongs to the technical field of mineral dressing and particularly discloses a potassium feldspar production method, comprising the specific steps of S1, removing mud; S2, ball milling;S3, magnetically removing impurities; S4, drying, to be specific, adding concentrate pulp into a drying furnace, and drying to obtain solid concentrate; S5, calcining, to be specific, transferring the solid concentrate to a calcining furnace for calcining at 1300-1500 DEG C, and adding a mixed gas of nitrogen and argon in a volume ratio of 1:2 to fill the calcining furnace during calcining; S6, removing impurities, to be specific, subjecting the calcined mineral to ball milling to the particle size of 0.5 cm so as to obtain pulp; S7, carrying out floatation, to be specific, adding sulfuric acid solution, adjusting pH of the pulp to 6.2-6.8, adding a collecting agent and a foaming agent, and collecting finished foam to obtain concentrate pulp II; S8, removing oil. The method herein helps extract main effective ingredients of potassium feldspar and also helps effectively remove the impurities that affect the color of potassium feldspar powder.

The invention discloses a lava ore beneficiation process for grinding, sorting, improving quality and reducing tail, including one-stage grinding, one-stage weak magnetic separation, second-stage grinding A, second-stage weak magnetic separation, elutriation machine separation, three-stage weak magnetic separation Magnetic separation, salvage machine separation, one-stage strong magnetic separation, two-stage grinding B, two-stage strong magnetic separation, three-stage strong magnetic separation, gravity separation. The invention realizes separate grinding and separation of magnetite and hematite, reduces the contradiction between over-grinding and under-grinding, improves the efficiency of magnetic separation, improves the grade of final iron concentrate, reduces the grade of recovered ore from tailings, and increases production efficiency .