37results about How to "Convenient for magnetic separation" patented technology

The invention provides a method for recycling industrial waste sulfate slag, which comprises the steps of sieving, stirring, magnetic separation, acid dipping, rinsing and drying to obtain iron-bearing materials. The method not only reallocates the available resource of the sulfate slag which is difficult to be processed and has high pollution, but also reduces the severe contamination of the sulfate slag to the environment and simultaneously lowers the production cost greatly; the metal recovery rate is 50 to 82 percent, high quality iron concentrate with the grade of iron being larger than 60 percent, the grade of sulfur being smaller than 0.3 percent and the grade of arsenic being smaller than 0.1 percent is obtained; simultaneously the recovery processing capacity is large, the equipment is simple, the investment is small, the operation is convenient, the sulfate slag material is not limited, both the sulfate slag with high iron content and the sulfate slag with low iron content can be recycled, and the method has good social benefit and remarkable economic effect.

The invention discloses an efficient rubber crushing and recycling device and a crushing and recycling method thereof, and belongs to the technical field of rubber crushing. The efficient rubber crushing and recycling device comprises a U-shaped outer frame, a herringbone blanking plate, two sets of triangular pyramid guide stop blocks, discharging holes, a crushing mechanism and a gear transmission mechanism, the lower side parts of the front end and the rear end of the U-shaped outer frame are closed, and the U-shaped outer frame is hollow and has a thickness; the herringbone blanking plateis arranged between the left inner wall and the right inner wall of the U-shaped outer frame; the two sets of triangular pyramid guide stop blocks are arranged at the top of the herringbone blanking plate, the number of each set of triangular pyramid guide stop blocks is two, and the outer sides of the triangular pyramid guide stop blocks are flush with the U-shaped outer frame; the two discharging holes are formed in the left end and the right end of the U-shaped outer frame correspondingly and located in the bottoms of the left side and the right side of the herringbone blanking plate correspondingly; the crushing mechanism is arranged on the U-shaped outer frame and located on the upper side of the herringbone blanking plate; and the gear transmission mechanism is arranged on the U-shaped outer frame. According to the efficient rubber crushing and recycling device, efficient crushing is facilitated, meanwhile, good magnetic separation is carried out, and the crushing and magnetic separation efficiency is effectively improved.

The invention discloses a crushing and grinding device for steelmaking slag. The crushing and grinding device comprises a grinding device main body, an electric telescopic rod, a telescopic rod mounting rack, a grinding motor, a screw conveyer and a grinding plate, wherein a grinding chamber arranged at the upper part of the grinding device main body and a powder collecting chamber arranged at thelower part of the grinding device main body are arranged inside the grinding device main body; a telescopic rod mounting groove communicated with the grinding chamber is formed in the center of the top surface of the grinding device main body; the telescopic rod mounting rack is welded on the top surface of the grinding device main body; and the telescopic rod is arranged at the bottom of the telescopic rod mounting rack. According to the crushing and grinding device disclosed by the invention, the telescopic rod rotates and extends to drive a pressing plate to downward move, and steel slag is enabled to support against the surface of the grinding plate and is extruded and crushed; and the grinding motor rotates to drive a rotating shaft to rotate and to further drive the grinding plate to rotate, so that crushed steel slag is ground, and the whole steel slag is directly processed to form steel slag powder.

A disclosed industrial waste renewable resource recovery device comprises a magnetic separation chamber and a crushing chamber, a feeding hopper is welded to the upper end of the crushing chamber, the caliber of the feeding hopper is in a big-end-up shape, the bottom side of the crushing chamber is fixedly connected to the top end of the magnetic separation chamber through a connecting column, a discharging pipe at the bottom end of the crushing chamber is inserted into a feeding opening in the top end of the magnetic separation chamber, two crushing rollers are oppositely arranged in the upper portion between the inner walls of the two sides of the crushing chamber, and two first motors are fixedly connected to the positions, opposite to the two crushing rollers, of the upper portion of the outer wall of the crushing chamber. The industrial waste renewable resource recovery device has the advantages that a magnetic selection cylinder is arranged to carry out magnetic selection on steel waste to separate non-steel parities from the waste, and the purity of the steel renewable resources is improved; according to the waste magnetic separation device, crushing rollers are arranged for cooperation, and the waste can be crushed before magnetic separation is conducted on the waste, so that the waste is changed into small particles, and subsequent magnetic separation is facilitated.

The invention relates to a feeding device, in particular to rotary magnetic separation equipment for quartz sand utilized as a building material, and aims to solve technical problems in the prior art.In order to solve the above technical problems, the rotary magnetic separation equipment which is applicable to the quartz sand utilized as the building material, has the intermittent adding function, and is good in magnetic separation effect is provided. The rotary magnetic separation equipment for the quartz sand utilized as the building material comprises ab racket and the like, wherein the bracket is connected with the right side of the top of a base; a discharging mechanism is connected with the left end of the bracket; and a magnetic separation mechanism is connected with the left sideof the inner top of the bracket and positioned on the right side of the discharging mechanism. By adoption of the designed rotary magnetic separation equipment for the quartz sand utilized as the building material, the quartz sand can be quantitatively and intermittently added; the manual adding operation is not needed; more convenience is brought; and through the arrangement of a motor, a secondrotating rod and a third rotating rod, the automatic, quantitative and intermittent adding operation can be achieved without manually moving a connecting rod.

One object of the present invention is to provide a method for producing a magnetic recording medium which has excellent magnetic separation properties of the magnetic recording pattern, the present invention providing a method for producing a magnetic recording medium having a magnetic recording pattern which is magnetically separated, comprising the steps of: after laminating at least a magnetic layer and a carbon protective layer on a non-magnetic substrate in this order, partially irradiating with a reactive plasma containing carbon and a halogen or reactive ions which are generated in the reactive plasma on a surface of the carbon protective layer, and thereby forming a halogenated carbon protective layer, which is obtained by partially halogenating the carbon protective layer, and the magnetic recording pattern separated magnetically which is obtained by partially improving the magnetic layer.

The invention relates to a method used for combined treatment of copper slag and magnesium slag, and applications thereof, and belongs to the technical field of metallurgy. The method comprises following steps: 1, industrial copper slag and self-pulverization magnesium slag are mixed at a mass ratio of (50-90):100 so as to obtain a mixed slag, the mixed slag is grinded until particle size is lowerthan 200 meshes, uniform mixing is carried out, and compacting is carried out so as to obtain pie-shaped mixed slag; and 2, the pie-shaped mixed slag is introduced into a muffle furnace, the temperature is increased to 1100 to 1300 DEG C at air atmosphere, constant temperature roasting is carried out for 1 to 3h, after roasting, obtained samples are taken out from the muffle furnace, are cooled with compressed air, and are subjected to fine grinding and magnetic separation so as to obtain iron-rich concentrate and silicate-rich phase mine tailing. The magnetic separation products can be usedin thermal insulation refractory materials and building materials; after improvement, mixed slag magnetic separation yield is increased from 38.71% to 69%; the recovery rate is increased from 52.07% to 81.14%; and mixed slag magnetic separation concentrate yield and recovery rate are increased greatly.

The invention discloses a double-cylinder magnetite fine powder grade improving machine based on centrifugal force. The grade improving machine structurally comprises an ore fine powder outlet, a bracket, a pouring hopper, an iron ore fine powder improving machine body, a top cover and a driving device, wherein the bottom of the iron ore fine powder improving machine body is connected with the pouring hopper with the iron ore fine powder outlet; the pouring hopper is vertically connected with the bracket; and the top of the iron ore fine powder improving machine body is connected with the topcover. Compared with the prior art, the grade improving machine has the beneficial effects that ore pulp can be comprehensively stirred through the combined arrangement of a rotating shaft, a stirringgroup, a double-layer cylinder and a connecting sleeve, the stirring is sufficient, the pulp is enabled to be more uniform, the ore fine powder is prevented from being wrapped by impurities, the orefine powder is prevented from being discharged without being magnetically separated, the waste of the ore fine powder is avoided, magnetic separation is carried out on light ore fine powder through aU-shaped permanent magnet, the ore fine powder is further attracted, the magnetic separation effect is improved, the ore fine powder on the wall of the cylinder body can be scraped off through a scraping plate, the situation that the magnetic force of the fine iron powder is weakened due to the fact that the cylinder body is full of the ore fine powder is avoided, and the magnetic separation is better facilitated.

The invention discloses a high-temperature pellet cooling device which comprises a spiral discharging device,a steam cooling device and a water discharging device. The problems of high-temperature pellet cooling,discharging and steam recovery are systematically solved,the problems of high energy consumption and likely pellet breakage of an indirect cooling mode are avoided,and the problems of inorganized steam discharging and silting caused by a slag basin water quenching mode are also eliminated. The high-temperature pellet cooling device is simple and easy to control,high in production efficiency and wide in application prospect.

The invention discloses a grain bulking machine which comprises an engine base, wherein a barrel is connected to the engine base; a feeding pipe is upwards communicated to the feeding end of the barrel; an electric motor is arranged at the front side of the engine base and is connected with a small belt pulley; a large belt pulley is connected to the small belt pulley through a driving belt; a pressing bolt assembly is arranged in an inner cavity of the barrel; a discharge opening is connected to the rear end of the barrel; a discharging tail box is connected to the discharge opening; a hydraulic cylinder is arranged on the discharging tail box; an expansion control head in a shape like a frustum with a small front part and a large rear part is arranged at the front end of a piston rod of the hydraulic cylinder; the pressing bolt and a spindle are coaxially arranged and are connected together through a connecting bolt; the large belt pulley is in key connection with the spindle; a cooling heat exchange box is arranged at the front end of the engine base; a front spiral seal and a rear spiral seal are correspondingly arranged on the spindle of the front and rear end parts of a bearing chamber. The grain bulking machine disclosed by the invention has the advantages of good sealing property, uniformity in material stirring, and stability and reliability in work; the thickness of the materials can be controlled, and the cooling of lubricating oil can be kept excellent.

The invention relates to a biochemical preparation method of steel slag powder, a cement mixed material and a concrete admixture, and the biochemical preparation method comprises the following steps: S1, biochemical treatment: soaking steel slag in an aqueous solution of iron-oxidizing bacteria to convert elemental iron and Fe < 2 + > in the steel slag into Fe < 3 + > until the concentration of Fe < 2 + > in the aqueous solution is reduced and is kept stable to form a reaction solution; and S2, drying and grinding: taking out a solid-phase product from the reaction solution, drying and grinding to form steel slag powder. The prepared steel slag powder is applied as the cement mixed material or concrete admixture. The steel slag is subjected to early-stage biochemical treatment, so that the particle compact structure of the steel slag becomes loose, and the grindability is greatly improved. The powder abrasion energy of the treated steel slag is reduced in the grinding process, the grinding efficiency of the steel slag is improved, the reutilization rate of the steel slag is further improved, and resource waste and environmental pressure caused by discharge of a large amount of steel slag are reduced.

The invention relates to the technical field of classifiers, in particular to an iron ore classification.The iron ore classification.The iron ore classificationcomprises a classificationequipment body, a first shell, a device groove, a feeding pipe, a barrel and a water spraying pipe, an arc-shaped plate is further fixedly installed in the device groove, and a transmission mechanism used for improving the screening efficiency of iron ore raw materials is arranged above the arc-shaped plate. Iron ore raw materials are fed into the device groove through the feeding pipe, then a first motor outside the fine selection equipment body is started, the materials can fall down through a plurality of material guiding openings in the bottom of an arc-shaped plate in the moving process, magnetic separation can be conveniently conducted on the materials through a rotating barrel, the falling materials can be evenly dispersed in the device groove, and the magnetic separation efficiency is improved. And therefore, the situation that separation is not timely enough due to too fast ore feeding is effectively avoided.

The invention discloses a multi-stage magnetic separation device for cracked carbon black and a working method, and relates to the technical field of waste tire thermal cracking equipment, the multi-stage magnetic separation device comprises a rack, and the rack is sequentially provided with a feeding hopper, a crushing mechanism, a first-stage magnetic separation mechanism, a second-stage magnetic separation mechanism, a third-stage magnetic separation mechanism, a speed reducer and an electric cabinet from top to bottom; the crushing mechanism is installed in the feeding hopper, the first-stage magnetic separation mechanism is in transmission connection with the speed reducer through a transmission belt, the second-stage magnetic separation mechanism is in transmission connection with the first-stage magnetic separation mechanism through a transmission belt, and the third-stage magnetic separation mechanism is in transmission connection with the second-stage magnetic separation mechanism through a transmission belt. According to the multi-stage magnetic separation device for the cracked carbon black and the working method, after the cracked carbon black material is conveyed into the feeding hopper, the material is crushed under the action of the crushing mechanism, so that the caked carbon black and steel wires can be separated, the subsequent magnetic separation operation is facilitated, and the processing precision of magnetic separation is improved.