2974 results about "Pulverizer" patented technology

The invention relates to the technical field of organic fertilizers and planting of watermelons and muskmelons, and provides a special fertilizer for milk irrigated watermelons and muskmelons and a double-stubble planting method for sweetness enhancement of milk irrigated watermelons and muskmelons. The special fertilizer for the milk irrigated watermelons and muskmelons comprises black goat manure, sophora alopecuroide, sesame seed meal, bran, organic fresh milk, brown sugar and zymophyte. The black goat manure is pulverized into powder by a pulverizer, the sophora alopecuroide is pulverizedinto 1 cm to 2 cm, and the ratio of the black goat manure, the sophora alopecuroide, the sesame seed meal, the brans, the organic fresh milk, the brown sugar and the zymophyte is 2700-3200: 80: 50: 150: 5: 1. The double-stubble planting method for sweetness enhancement of the milk irrigated watermelons and muskmelons comprises the following steps: selection of a nursery seedling plate and soil, cleaning and germination accelerating of seeds, soil preparation, transplanting, irrigation, topdressing, shaping and forking of watermelon and muskmelon vines and fruit bearing of the watermelons and the muskmelons. The problems that in an existing watermelon and muskmelon planting process, soil nutrients are damaged due to the fact that chemical fertilizers are used for a long time, and the sweetness of melons is reduced are solved.

The invention discloses mobile water and fertilizer integrated equipment, and relates to the technical field of agricultural planting, the mobile water and fertilizer integrated equipment comprises a flat trolley, a fertilization tank and a crushing mechanism arranged on the fertilization tank, the crushing mechanism comprises a grinding assembly, the grinding assembly comprises a pipe body arranged above the fertilization tank, and an upper grinding disc and a conical lower grinding disc arranged in the pipe body; through the designed crushing mechanism, three-stage bulges are arranged on a conical lower grinding disc, a progressive crushing channel is formed in cooperation with a circular groove of an upper grinding disc, granular fertilizer needs to sequentially pass through gaps among the three-stage bulges, the crushing time of the granular fertilizer is prolonged, the granular fertilizer which is not completely crushed is crushed again in cooperation with the upper grinding disc and a net ring, and the crushing efficiency is improved. A conical plate and a conical seat in the discharging assembly can be synchronous with the rotating speed of a stirring frame and an upper grinding disc by adjusting the size of an opening, so that the concentration of water containing fertilizer liquid discharged from a water discharging pipe is consistent.

The invention provides a special double-cavity row type airflow crushing system for producing diamond micro-powder, and effectively solves the problems that when an existing airflow crushing machine crushes diamond, the impact frequency of large particles is insufficient, small particles are excessively crushed, the particle size distribution range of the crushed micro-powder is wide, and the particle size of the produced diamond micro-powder is not uniform. According to the technical scheme, the device comprises two jet mills and a connecting structure, the jet mill comprises a crushing cavity, a feeding hole, a crushing nozzle, a pressure equalizing chamber and an air outlet; the crushing cavity is of a disc cavity structure consisting of a circular-ring-shaped side lining plate, an upper-end lining plate and a lower-end lining plate; spiral strips are arranged on the inner side walls of the side lining plates; the connecting structure comprises a cylindrical shell and a hollow pipe at the lower end of the cylindrical shell, and one end of the hollow pipe gradually faces downwards and communicates with the crushing cavity; a material guide plate is arranged on the lower end surface of the upper end lining plate; blanking pipes are arranged on the left and right sides of the lower end of the cylindrical shell; the lower ends of the blanking pipes are communicated with the crushing cavity; a filter screen is arranged at the upper end of the cylindrical shell.

The invention relates to the technical field of ecological management, in particular to a mine management soil remediation device which comprises an upper shell, a lower shell is fixedly mounted at the bottom of the upper shell, a water tank is fixedly mounted at the top of the upper shell, a separation mechanism is mounted in the upper shell, a smashing mechanism is mounted in the lower shell, and a soil remediation mechanism is mounted in the smashing mechanism. A spraying mechanism is installed between the lower shell and the water tank, an output mechanism is installed in the lower shell and located at the bottom of the smashing mechanism, and a driving mechanism is installed among the separating mechanism, the smashing mechanism and the spraying mechanism. The separating mechanism comprises a first separating roller, a second separating roller and a first bevel gear. According to the mine soil remediation device, stones in mine soil are effectively separated and crushed, the function of agent spraying is combined, the mine soil remediation efficiency and quality are improved, the equipment maintenance cost is reduced, and effective remediation of the mine soil and improvement of the ecological environment are achieved.

The present invention relates to the technical field of pulverizing devices, and discloses a feed efficient pulverizing device for feed processing and a processing method. The feed efficient pulverizing device for feed processing comprises: a pulverizing outer cylinder, a feed hopper is installed on the top of the pulverizing outer cylinder, a pulverizing mechanism is arranged in the pulverizing outer cylinder, and the pulverizing mechanism comprises a rotary drive component, a shaking component and a plurality of pulverizing components. The present invention provides a plurality of pulverizing components, and pulverizes the feed raw materials in small batches. The pulverizing components are used to circulate circular motion in the pulverizing outer cylinder to maintain the continuous introduction of the feed raw materials. During the pulverizing component's circular motion, the pulverizing components are further driven to reciprocate up and down, so as to increase the contact opportunity between the feed raw materials and the pulverizing end of the pulverizing component, so that the feed raw materials can fully contact the pulverizing end of the pulverizing component, and the feed raw materials can be pulverized to the desired small particle size in a short time.

The utility model discloses a superfine powder jet mill which comprises a base, a crushing tank, a crushing component and a feeding component, and the crushing tank is mounted above the base. The crushing assembly is arranged, under the arrangement of a blocking net, materials are prevented from falling to the position close to a supersonic nozzle, crushing of the supersonic nozzle is affected, or the supersonic nozzle is blocked, the height of a cleaning brush and the height of an air nozzle can be adjusted through an electric push rod, and under the arrangement of the cleaning brush and the air nozzle, a grading rotor can be cleaned; under the arrangement of an air compressor and a supersonic nozzle, the materials entering the crushing tank are accelerated to impact and collide with crushing teeth repeatedly, superfine crushing of the materials is achieved, a first motor is used for driving a worm to rotate, the worm rotates to drive a worm gear to rotate, the worm gear rotates to drive a vertical rod to rotate, and the vertical rod rotates to drive the grading rotor to rotate; and the vertical rod rotates to drive the crushing wheel to rotate, and under the cooperation of crushing teeth, the materials are efficiently and fully crushed, so that the overall processing efficiency is improved.

The invention relates to a preparation method of a multi-metal coarse-grained ore sample. The preparation method of the multi-metal coarse-grained ore sample comprises the following steps: roasting an ore sample, and pre-screening the roasted sample by adopting a 6-mesh standard sieve; carrying out coarse crushing on the residual materials after pre-screening, and uniformly mixing the crushed materials with the pre-screened materials; carrying out intermediate crushing on the uniformly mixed materials, and feeding the materials subjected to intermediate crushing into a crusher for grinding; and repeatedly and uniformly mixing the ground materials, dividing the uniformly mixed ground materials into a sample amount, grinding the divided materials into 200 meshes through a sealed test sample preparation grinder, and uniformly mixing and bagging the ground materials. According to the scheme provided by the invention, through four links of coarse crushing, intermediate crushing, fine crushing and fine grinding, large-particle-size ore materials are crushed and processed by stages, the particle size of each stage and representativeness of a division sample are ensured, the ore materials are finally processed to the particle size of-200 meshes or below, the qualified rate of preparation of coarse-particle ore samples is increased, and accurate guidance of production is realized.

The invention relates to a device for preparing rubber powder by adopting a high-pressure water jet composite method, which comprises a high-pressure water generating system, a multi-nozzle cutting head, a rotary crushing cylinder assembly, a rotary filtering cylinder assembly, a liquid collecting cylinder, a fixed seat and a base, the fixed seat comprises an upper mounting plate, a lower mounting plate and a stand column connected between the upper mounting plate and the lower mounting plate, the multi-nozzle cutting head and the rotary crushing cylinder assembly are mounted on the upper mounting plate, the rotary filtering cylinder assembly is mounted on the lower mounting plate, the liquid collecting cylinder is mounted on the stand column, and the high-pressure water generating system is communicated with the multi-nozzle cutting head. And the rotary crushing cylinder assembly comprises a crushing cylinder and a crushing rotating device. High-pressure water jet and mechanical smashing are efficiently combined, a double smashing mechanism of non-contact cutting and mechanical shearing is achieved, the production requirement of fine rubber powder is met, layered multi-nozzle covering cutting of the multi-nozzle cutting head is achieved, and energy consumption is remarkably reduced.

The invention relates to the technical field of petroleum coke crushing, and provides a crusher for calcined petroleum coke processing, the crusher comprises a support frame, the rear side surface of the support frame is fixedly connected with a feeding barrel, the upper surface of the feeding barrel is fixedly connected with a feeding pipe, and the rear side surface of the feeding barrel is rotatably connected with a screw rod; a long transmission rod is fixedly connected to the outer surface of the lead screw, an inner screen drum is fixedly connected to the end, away from the lead screw, of the long transmission rod, a short transmission rod is fixedly connected to the outer surface of the inner screen drum, an outer screen drum is fixedly connected to the end, away from the inner screen drum, of the short transmission rod, and a limiting sleeve is fixedly connected to the outer surface of the lead screw. By means of the technical scheme, the petroleum coke screening device solves the problems that in the prior art, petroleum coke is prone to being clamped on a screen in the conveying and screening process, blockage is caused, the screening efficiency is low, the device is prone to being damaged, and the overall working efficiency is affected.

The utility model relates to the technical field of ore crushing, and discloses a crusher for mineral separation, which comprises a base, a crushing barrel, a blanking barrel, a shearing crushing assembly, an extruding crushing assembly, a grinding assembly and a rotary driving assembly, the crushing barrel is arranged to perform princess installation on the shearing crushing assembly, the extrusion crushing assembly and the grinding assembly, so that ores are sequentially subjected to shearing crushing, extrusion crushing and grinding, the whole process is integrally performed, repeated operation is not needed, the processing efficiency of the equipment is improved, and smoke dust is effectively reduced.

The invention discloses a system and a method for extracting a biodiesel raw material from kitchen waste. The system comprises a pulping pulverizer, a mixing distributor, a heat exchanger and a three-phase separation tank, wherein the pulping pulverizer and the mixing distributor are connected through a slurry circulating pipe, and a forced circulating pump is arranged on the slurry circulating pipe; the heat exchanger is connected to the top of the mixing distributor, the three-phase separation tank is connected to the top of the heat exchanger, a horn-shaped filter cover is arranged in the middle of the interior of the three-phase separation tank, the top end of the horn-shaped filter cover is connected with a solid-liquid mixture circulating pipe, and the solid-liquid mixture circulating pipe is connected with the pulping pulverizer; the pulping pulverizer at the top end of the three-phase separation tank is connected with the secondary steam circulating pipe; the pulping pulverizer, the mixing distributor, the heat exchanger and the three-phase separation tank are all of a closed structure. The system and the method have the characteristics of high oil phase extraction rate, good oil-water separation effect and low energy consumption, and provide important technical support for promoting resource utilization of the kitchen waste.

According to the waste plastic double-heat-carrier circulating rapid pyrolysis fuel oil preparation device provided by the invention, a waste plastic crusher is communicated with the top of a downward pyrolysis reactor through a controllable feeder, and the upper part of the downward pyrolysis reactor is respectively communicated with a pyrolysis dry gas heat exchanger and a primary solid heat carrier return feeder; the bottom of the downward pyrolysis reactor is connected to the top of the moving bed reactor; the top of the moving bed reactor is communicated with the fractionating tower; the bottom of the moving bed is communicated with the lifting pipe heating regenerator through a to-be-generated heat carrier return feeder; a gas distributor, an ash discharge pipe and a gas inlet pipe are arranged at the bottom of the riser heating regenerator, and a first-stage gas-solid separator and a second-stage gas-solid separator are arranged at the top of the riser heating regenerator; a gas outlet of the second-stage gas-solid separator is provided with a pyrolysis dry gas heat exchanger and a waste heat boiler; a wax oil outlet, a diesel oil outlet and a gasoline outlet are formed in the bottom and the upper part of the fractionating tower, one path of tower top dry gas is connected with a water-cooling feeding pipe, the other path of tower top dry gas is communicated with a pyrolysis dry gas heat exchanger and a high-temperature gas hot melting section, and residual dry gas is delivered as a product.

The invention belongs to the technical field of construction waste treatment, and discloses a construction waste crushing treatment device for house building construction. Comprising a crusher body and a base; the top end of the base is fixedly connected with a conveying frame through multiple sets of elastic sheet plates. The feeding end of the conveying frame communicates with the discharging end of the pulverizer body through a hose. A strong magnetic roller is installed in the conveying frame, a driving mechanism is installed between the base and the conveying frame, and materials in the conveying frame are conveyed in a vibrating mode through matched use of the driving mechanism and an elastic piece plate. A shifting mechanism is mounted between the base and the conveying frame, and metal fragments adsorbed on the strong magnetic roller are shifted to one side of the conveying frame through the shifting mechanism; according to the device, metal fragments adsorbed on the strong magnetic roller can be effectively removed, and the metal removal efficiency and accuracy are improved.

The invention relates to the technical field of jet milling, in particular to a jet milling control method for a fluidized bed jet mill. The method comprises the following steps: acquiring the scattered particle weight increment of large particles and the fine weight increment of fine particles between adjacent sampling moments; dividing into an initial increasing stage and a uniform increasing stage according to the numerical value change of the weight increment of the scattered particles at the maximum value position; in the initial increasing stage, the retention degree is determined according to the trend change of the small weight increment; the drag force degree is determined according to the numerical comparison of the fine weight increment and the granular weight increment in the initial increasing stage and the uniform increasing stage; and determining an adjustment coefficient of the jet milling pressure by combining the retention degree and the drag force degree at the current moment, and regulating and controlling the jet milling pressure at the current moment according to the adjustment coefficient. The airflow crushing pressure can be adjusted and controlled more objectively and reasonably, and the airflow crushing efficiency is effectively improved.

The invention relates to the technical field of jet mills, in particular to a jet mill for azodicarbonamide production, which comprises a base, the upper end of the base is fixedly connected with a top plate, the upper surface of the top plate is fixedly connected with a stock bin, and the lower end of the stock bin is fixedly connected with a spiral feeder body. The spiral feeder body is fixedly connected to the lower surface of the top plate, the interior of the base is fixedly connected with a high-pressure air inlet machine body, the upper end of the base is fixedly connected with a smashing device, and the smashing device comprises a sealing bin. According to the invention, through slow and uniform rotation of the air pipe and the high-pressure nozzles, material particles are in the crushing chamber, because high-speed air flows ejected by the plurality of high-pressure nozzles converge, and the material particles violently collide with each other at the intersection, the impact force generated by the collision is enough to crush the material particles, and finally the material particles enter the classifier body; and then the powder is discharged from the discharge port and enters the next process, so that the crushing efficiency is improved.

The invention discloses a biomass blending combustion coal-fired power generation system and method based on low-temperature aerobic upgrading. The system comprises a biomass bin, and a crushing unit is arranged at a discharge port of the biomass bin; the discharging end of the crushing unit is sequentially connected with a low-temperature aerobic upgrading device, a coal bunker unit and a coal mill through a conveying mechanism; the coal mill is connected with a coal-fired boiler, and the coal-fired boiler is provided with an SCR reactor; a heat source inlet of the low-temperature aerobic upgrading device is connected to a tail flue behind the SCR reactor, and tail flue gas of the SCR reactor is used for heating; tail gas of the low-temperature aerobic upgrading device is conveyed to the coal-fired boiler through the centrifugal fan to be combusted and purified, and the system achieves real-time monitoring and control through the central control system and the monitoring unit. According to the invention, high-efficiency and low-cost treatment can be carried out on the biomass, the problems of moisture content, high volatile components, grindability and the like of the biomass are effectively improved while the high energy recovery rate is reserved, and large-scale stable blending combustion of the biomass in a large coal-fired boiler is realized.

The utility model relates to the field of ore processing, and in particular to a quantitative feeding ore crushing equipment. The utility model provides a quantitative feeding ore crushing equipment that is convenient for workers to adjust the feeding amount each time according to the type of ore, and can feed quantitatively, so that different types of ores can be fully crushed. A quantitative feeding ore crushing equipment includes a base frame, a crusher and a rotating shaft, etc.; the upper side of the base frame is fixedly connected to the crusher, and the upper part of the crusher is rotatably connected to the rotating shaft. The utility model starts the motor and the crusher, and rotates the handle at one end of the screw rod counterclockwise, so that the capacity of the six diameter reducing blocks is reduced, thereby reducing the capacity of the diameter reducing blocks. The ball at the lower end of the bracket will intermittently get stuck between two protrusions of the cam disc, thereby limiting the cam disc, and then the cam disc and the multi-slot hollow column will stop after rotating one-sixth of a circle each time, so that the workers can better rotate the screw rod and adjust the capacity of the diameter reducing block.

The utility model discloses a hammer head of a crusher, which can solve the technical problem of improving the crushing efficiency. The crusher hammerhead comprises a base part and a working part, the base part is provided with a hammerhead mounting structure, the hammerhead mounting structure is used for mounting the hammerhead on a hammerhead driving mechanism, and the working part is arranged on the base part and used for hammering materials. The working part is internally provided with a material separating and guiding flow channel which is arranged in a front-and-back penetrating mode in the hammering direction, and hammering areas which are distributed on the periphery of an inlet of the material separating and guiding flow channel at intervals are formed on the hammering face of the front end of the working part. And the grinding efficiency of the ultrafine grinder can be obviously improved.

The invention discloses a coal slipping hole with a multi-stage buffering function, and relates to the technical field of coal mine transportation, the coal slipping hole comprises a feeding port and a communicating pipe arranged at the bottom end of the feeding port, and the communicating pipe can be communicated with a discharging port of a raw coal pulverizer through the feeding port; further, the crushed raw coal can enter an inner cavity of the communicating pipe; the dust removal buffering mechanism is used for removing dust in the crushed raw coal, by arranging the dust removal buffering mechanism, the raw coal fragments discharged from the communicating pipe can be buffered, meanwhile, dust and dust in the raw coal can be absorbed and collected, and dust and dust removal work is achieved along with raw coal accumulation; and the anti-blocking mechanism is used for preventing raw coal from blocking in the dust removal buffering mechanism, and the wrapping box is arranged on the outer surface of the anti-blocking mechanism, so that the effect of multi-stage buffering of the raw coal during raw coal transportation is achieved.

The invention relates to the technical field of operation load monitoring, in particular to a grass fiber pulverizer operation load dynamic monitoring method. The method comprises the following steps: acquiring voltage and current output by a motor of a crusher, actual rotating speed, temperature and material conveying speed during crushing to obtain a load degree sequence; first-order difference is carried out on the load degree sequence, and if the difference value at the current moment is in a continuous interval with the difference value larger than zero, the continuous interval is marked as a target interval; obtaining a load degree change characteristic value of the target interval according to the target interval; acquiring a load abnormal factor at the current moment; the material conveying speed at the current moment and the input power of a motor at the current moment are adjusted according to the load abnormal factors; and after the material conveying speed at the current moment and the input power of the motor are adjusted, monitoring the abnormality of the pulverizer according to the load degree change characteristic value within the preset time duration after the current moment. According to the invention, the operation load of the grass fiber pulverizer can be accurately monitored.

The invention discloses an automatic combustion control method and system for a slag pulverizer hot blast stove. The method comprises the following steps: acquiring operation parameters of a hot-blast stove and a slag pulverizer; selecting one of a furnace temperature control mode and a flow control mode for execution according to the production stage; the total target gas flow is calculated in the selected mode, wherein the flow control mode is subjected to prospective adjustment according to a linkage rule base of mill operation parameters; the air-fuel ratio is corrected based on double feedback of coal gas components and flue gas residual oxygen; and finally, distributing the target flow to a plurality of burners and executing combustion. Through dual-mode switching and intelligent linkage with the mill, conversion from reaction type control to predictive type control is achieved, thermal lag is effectively overcome, combustion efficiency is ensured through dynamic air-fuel ratio correction, and the energy utilization rate, operation stability and automation level of the system are remarkably improved.

The invention provides a coal-fired unit pulverized coal distribution adjustment control method based on a boiler wall temperature distribution field. According to the method, automatic adjustment of pulverized coal distribution of the coal-fired unit under the full-load working condition can be achieved, the uniformity of combustion intensity distribution is effectively improved, and the safety, the environmental protection property and the economical efficiency of unit operation are enhanced.

The invention discloses a vertical ultrafine grinder, aiming at solving the technical problems that the productivity of the vertical ultrafine grinder can be improved and the marginal decreasing effect of unit energy consumption can be effectively overcome. Comprising a smashing chamber, a smashing disc located in the smashing chamber, a smashing disc rotation driving mechanism in transmission connection with the smashing disc, a feeding structure, a discharging structure and an air inlet structure, and the feeding structure, the discharging structure and the air inlet structure are communicated with the smashing chamber. The diameter of the smashing disc ranges from 1950 mm to 2050 mm, the edge linear speed ranges from 160 m / s to 170 m / s when the smashing disc works, and the rated power of the smashing disc rotation driving mechanism ranges from 230 kW to 270 kW. And the unit energy consumption rebound trend is successfully improved while the productivity is remarkably improved.

The utility model provides an injection molding waste filtering mechanism and a pulverizer. The injection molding waste filtering mechanism comprises a mounting box; the mounting box is provided with discharge ports corresponding to the filter plates, and one ends of the filter plates are rotationally arranged at the discharge ports; the driving part is slidably arranged on one side of the mounting box and slidably connected with the filter plates, and when the driving part moves in the height direction of the mounting box, the driving part drives the filter plates to rotate with the ends of the filter plates as the axes. The crushed injection molding waste directly enters the mounting box, the injection molding waste is filtered under the action of the filter plates, the injection molding waste large in size is intercepted on the upper filter plate, the injection molding waste meeting the standard is intercepted on the lower filter plate, and powder falls onto the ground through all the filter plates. And the crushed injection molding waste can be screened for multiple times, subsequent manual selection is not needed, and time and manpower are saved.

A mineral processing system for mineral separation and coarse particle recovery utilizing engineered media, features a first ore size reduction circuit and a second ore size reduction circuit. The first ore size reduction circuit includes a secondary crusher with a combination of a high pressure grinding roll crusher and a screen, and is configured to receive a primary crusher feed from a primary crusher, and provide a first ore size reduction circuit feed having first crushed ore with a first orebody feed size that is less than a primary orebody feed size of the primary crusher feed and in a range of about 6-8 mm. The second ore size reduction circuit is configured to receive the first ore size reduction circuit feed and provide a second ore size reduction circuit feed having second crushed ore with a second orebody feed size less than 1 mm.

The invention relates to the field of asphalt production, and particularly discloses a preparation method of warm-mixed modified asphalt based on coal liquefaction oil residues, which comprises the following steps: S1, raw material pretreatment: pre-crushing the coal liquefaction oil residues until the particle size is less than or equal to 5mm, then refining the coal liquefaction oil residues to 200 meshes through an airflow mill, and then drying and dehydrating the coal liquefaction oil residues; the preparation method comprises the following steps: freezing SBS in a liquid nitrogen environment of-30 DEG C, and crushing the frozen SBS into 0.5-1mm particles by a hammer crusher; s2, pre-mixing the composite modifier by stages: in the first stage, adding the coal liquefaction oil residue, the aromatic oil and the rubber powder into a high-speed stirrer at 80 DEG C, and stirring; according to the preparation method of the warm-mixed modified asphalt based on the coal liquefaction oil residues, through the coal liquefaction oil residue superfine activation and SBS cryogenic grinding technology, the interfacial activity of the raw materials is improved, solid waste resource utilization is achieved, the modification cost is reduced, and meanwhile, by combining staged temperature control mixing and dissolving with the ultrasonic-assisted dispersion technology, the warm-mixed modified asphalt is prepared. The high-temperature rutting resistance and the water stability of the composite modified asphalt are improved.

The invention discloses a preparation method of planting soil prepared from industrial waste, and relates to the technical field of preparation of the planting soil prepared from the industrial waste, and the preparation method of the planting soil prepared from the industrial waste comprises the following steps: step 1, crushing mine waste residues by using a crusher; according to the invention, the planting soil is prepared by crushing waste residues, coal gangue, coal cinder and mineral separation residues abandoned by mining and matching the crushed waste residues, coal gangue, coal cinder and mineral separation residues with traditional Chinese medicine residues, waste bacteria sticks and sludge obtained after urban sewage treatment according to a certain proportion, and the traditional Chinese medicine residues, the waste bacteria sticks and the urban water treatment sludge can be independently mixed with slag to prepare the soil, or can be mixed for many times to prepare the soil; according to the method, waste residues, coal gangue, coal cinder and mineral separation residues which are abandoned by mining are smashed and matched with traditional Chinese medicine residues, waste bacteria sticks and sludge obtained after urban sewage treatment according to a certain proportion to prepare the planting soil, and the traditional Chinese medicine residues, the waste bacteria sticks and the urban water treatment sludge can be independently mixed with slag to prepare the soil and can also be mixed for many times to prepare the soil.

The present document related to the processing of materials, such as ash waste, mining waste, consumer waste, or industrial waste, to separate valuable components. There is provided a process and system for extracting a valuable component, such as rare earth elements (REE) from a feedstock comprising REE-embedded material. The process can comprise subjecting the feedstock to a kinetic pulverization stage wherein the feedstock is subjected to self-collisions created by vortices within the kinetic pulverizer to produce a pulverized material; and subjecting the pulverized material to an extraction stage to produce a valuable component-rich stream and a valuable component-depleted stream. There is also provided processes for separating REEs from fossil fuel ash and municipal solid waste incinerator (MSWI) ash to produce an REE-enriched component, which can be separated into individual REE components, and a REE-depleted material.

The waste crusher comprises a box body, crushing rollers, a cam, an air blowing pipe and a dust collecting bag, the crushing rollers are installed on the outer surfaces of the two ends of the box body in a penetrating mode, a first gear is installed on the outer surface of one end of each crushing roller in a penetrating mode, and a first motor is fixedly installed on the outer surface of one side of the box body; and a second gear is fixedly installed at the output end of the first motor, a self-suction smashing box is fixedly installed on the outer surface of one side of the box body, smashing blades are installed on the outer surface of the self-suction smashing box in a penetrating mode, and a dust collecting bag is fixedly installed on one side of the box body. According to the waste pulverizer for papermaking, a second motor rotates to drive a second belt wheel to rotate, a belt drives a belt wheel to rotate, fan blades rotate along with the second belt wheel, air outside the box body is sucked into the box body and then blown out from a dust collection bag on the other side of the box body, meanwhile, dust is brought into the dust collection bag, dust collection is completed, and environmental pollution caused by dust blowing out is prevented.

The conveying device for grain processing and production relates to the technical field of grain processing and comprises a grain feeding head, a blocking rod is fixedly arranged at the edge position of the inner side of the grain feeding head, a butt joint is fixedly arranged at the end, away from the grain feeding head, of the blocking rod, and a limiting fixing groove is fixedly formed in the outer side of the end, away from the blocking rod, of the butt joint. The outer side of the limiting fixing groove is slidably sleeved with a grain discharging barrel, and an impurity opening and a rotating sleeve are rotationally arranged on the side, symmetrical to the grain drying machine, of the middle of the grain discharging barrel. According to the conveying device for grain processing and production, by arranging the electromagnetic ring, the electromagnetic controller and other parts and electrifying the electromagnet, impurities such as iron nails and iron wires in flowing grains in the pipeline are captured and prevented from entering precise equipment such as a crusher and a pulverizer, equipment abrasion is avoided, the service life of the equipment is prolonged, and the cost is reduced; iron impurities are prevented from being mixed into the grains, and the quality of the grains is guaranteed.