256 results about "Jet mill" patented technology

The invention discloses an intelligent fluidized bed jet mill, and relates to the technical field of material crushing and grading equipment. The equipment comprises a hardware part and a control module, wherein the hardware part consists of a crushing area, a feeding area and a grading area. Low-temperature and high-pressure nozzles uniformly distributed on an annular gas distribution disc are adopted in the crushing area; the grading area is provided with a flow dividing cylinder and a conical flow guide plate for separating ascending airflow and falling coarse particles; the control module collects particle size data of powder in real time, predicts future particle size distribution in combination with an LSTM network, dynamically optimizes the rotating speed of a grading impeller through a particle swarm algorithm, and achieves cooperative control over smashing efficiency, particle size precision and energy consumption with the effective output per unit energy consumption as the optimization target. Through low-temperature embrittlement, an anti-pollution structure and an intelligent algorithm, the problems that traditional equipment is high in energy consumption, extensive in particle size control and prone to contaminating materials are solved, and the device is suitable for fine smashing of high-purity or high-hardness materials.

The preparation method comprises the following steps: firstly, uniformly stirring and mixing synthetic fluorophlogopite, silica, polymethylsilsesquioxane, boron nitride, bismuth oxychloride, zinc stearate, aluminum starch octenylsuccinate, mica, aluminum oxide, hydrolyzed sodium hyaluronate and toner in a stirring homogenizer; then uniformly mixing polydimethylsiloxane, octyldodecanol stearoyloxy stearate, isoamyl laurate, diisostearyl malate, phenoxyethanol and caprylyl glycol, and heating to 45 + / -5 DEG C; pouring the mixture into an oil spraying barrel of a stirring homogenizer, uniformly stirring and mixing while spraying oil, crushing, then carrying out airflow crushing, sieving the material, putting the sieved material into a mold plate, and carrying out compression molding, so as to obtain a pressed powder block; and putting the mixture into a packing material powder box to obtain the make-up fixing and brightening pressed powder. The pressed powder is prepared by adding an airflow crushing process, the particle size of the powder is smaller, the powder is dispersed more uniformly, the powder is pressed into the solid pressed powder, and the phenomenon of powder flying is well reduced while makeup fixing and brightening effects are achieved.

The invention belongs to the technical field of silicon dioxide delustering agents for coatings, and particularly relates to a preparation method of silicon dioxide for delustering paint with elastic hand feeling, which comprises the following steps: S1, preparing water glass and a sulfuric acid solution; s2, adding cationic and nonionic aqueous dispersants and a silane coupling agent into water glass, and then adding sulfuric acid to form silicon dioxide silica sol; s3, carrying out acid-base regulation, heating and boosting aging, aging generation and other steps to generate precipitated silicon dioxide; and S4, washing the precipitated silicon dioxide with pure water, an ammonium salt aqueous solution and pure water in sequence, drying, and carrying out wax powder treatment and crushing through a high-temperature jet mill to obtain the product. The silicon dioxide for delustering of the elastic paint has the advantages of large pore volume, small bulk density, small particle size, uniform distribution and easiness in dispersion, has the advantages of good delustering property and good hand feeling when being used in the elastic paint, and is easy to industrialize.

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 graphene processing, and particularly discloses a nano graphene powder preparation method which comprises the following steps: weighing a graphite raw material; opening a discharge valve of the feeding cabin, and feeding the graphite raw material into the pressure stabilizing cabin; a graphite raw material is sucked into a first-stage jet mill high-pressure cabin from a pressure stabilizing cabin, first-stage jet milling is conducted, and a first-stage abrasive material is obtained; the first-stage grinding material with the thickness not larger than 10 micrometers is conveyed to a second-stage jet mill high-pressure cabin; processing the first-stage abrasive material by a second-stage jet mill high-pressure cabin to obtain a second-stage abrasive material; the second-stage grinding material with the thickness not larger than 100 nanometers is conveyed to a flow energy depolymerization cabin; the flow energy depolymerization cabin is used for processing the secondary grinding material, and nano graphene powder is obtained through screening; the high-purity graphite raw material is processed through a three-stage gradient processing framework, a negative feedback regulation scheme is introduced in each processing link, the quality of products in different stages is controlled, a progressive processing technology is constructed, and the product rate is greatly increased.

The invention belongs to the field of cement concrete, and particularly relates to an integrated cementing material special for ultra-high performance concrete and a preparation method of the integrated cementing material. The integrated cementing material comprises fly ash, slag powder, carbide slag, semi-hydrated gypsum, silica fume, a powder reinforcing agent, calcium nitrate and sodium silicate. The production process of the integrated cementing material comprises the following steps: winnowing ultrafine microbeads from fly ash, grinding solid waste powder by a fluidized bed type jet mill, chemically strengthening the powder reinforcing agent, chemically nucleating calcium nitrate and sodium silicate, and mixing the integrated cementing material. The ultra-high performance concrete cementing material is prepared from a high-activity solid waste material, the viscosity of a mixture is reduced by winnowing ultrafine micro-beads, the strength of the cementing material is improved by synergistic reaction of slag powder, carbide slag and semi-hydrated gypsum, and a C-S-H crystal nucleus is formed by chemical reaction of calcium nitrate and sodium silicate to provide active sites, so that the cementing material is prepared. And the cementing material is prepared by combining powder chemical dispersion and integrated mixing, so that the carbon emission and production difficulty of the ultra-high performance concrete are remarkably reduced.

The invention belongs to the technical field of extraction and purification of plant components, and relates to a low-temperature freezing vacuum drying nano processing method for extracting anthocyanin from purple corn, in particular to a method for extracting anthocyanin from corn kernels, cores, straws, roots and stigmas of purple corn. The processing method comprises the steps of pretreatment, concentration, hydroxyl radical treatment, quick freezing, nano crushing and the like. A hydroxyl radical treatment method is adopted, so that harmful substances such as pesticide residues can be efficiently, quickly and thoroughly removed; the effect of extracting the anthocyanin from corn kernels, roots, cores, stems and stigma of purple corn by adopting a low-temperature freezing vacuum drying technology is remarkable, the purification rate is high, and the anthocyanin containing 99% of biological activity is achieved. The nanoscale anthocyanin is processed by adopting jet mill equipment and can be conveniently absorbed by a human body and widely applied to various fields.

The utility model relates to a target type jet mill which comprises a cylindrical barrel, and a fine powder channel and a coarse powder channel are formed in a grading chamber; the powder grader is mounted in the grading chamber, and a powder outlet of the powder grader is connected with the fine powder channel; the powder supply device is connected with the powder feeding chamber and is suitable for feeding powder into the powder feeding chamber; the powder spraying pipe is installed on the barrel of the powder crushing chamber, an inlet of the powder spraying pipe is connected with a first Venturi powder pump, and a powder return pipe is connected between the first Venturi powder pump and the coarse powder channel. The particle size of the separated crushed powder can be controlled through the powder grader, selection control is carried out in a large particle size range, fine powder meeting the set requirement is discharged from the fine powder channel, coarse powder is collected for centralized treatment while the fine powder is discharged and collected in time, and therefore the powder quality is improved. Coarse powder enters the second Venturi pump through the coarse powder channel and is sprayed out again to be smashed, and the smashing efficiency and quality are improved.

A process for the direct recycling of electrode scrap generated as production waste during the production of lithium-ion batteries is to be developed that enables the recycling of electrode scrap from LIB production through mechanical stressing without adversely altering the active materials, so that it can be returned to production. This is achieved by mechanically stressing the electrode scrap, comprising pre-crushing the electrode scrap into bulk material and subjecting the pre-crushed electrode scrap to mechanical stressing in a conditioned atmosphere in a fluidized-bed counter-jet mill.

The invention discloses a shoe sole waste circulating device for shoe manufacturing, and relates to the technical field of clothing production, the shoe sole waste circulating device comprises a shell and a crushing mechanism, the crushing mechanism comprises a crushing roller and an arc-shaped sieve, the crushing roller is rotatably connected with the inner side wall of the shell, the arc-shaped sieve is fixedly connected with the inner side wall of the shell, and a conical sieve is arranged below the bottom end of the arc-shaped sieve; fixing plates are arranged on the two sides of the conical sieve. Through cooperation of the smashing roller and the arc-shaped screen, waste can be accurately cut into specific particle sizes, secondary screening is conducted in combination with the conical screen, the waste with the qualified particle sizes directly falls into the bin, through the design of the material returning mechanism, the waste which is not fully cut can automatically return to the smashing mechanism to be treated again, the smashing degree of the waste is effectively improved, and the labor intensity of workers is reduced. And it is ensured that all the finally obtained waste particles can meet the feeding requirement of a subsequent jet mill, and the waste treatment quality and efficiency are greatly improved.

The utility model relates to the technical field of material grinding equipment, in particular to a vortex target type jet mill device which comprises a grinding module and a grading module, the grinding module comprises an annular inner target lining and an annular outer target lining, a grinding channel is formed between the inner target lining and the outer target lining, and target teeth are arranged on the opposite side faces of the inner target lining and the outer target lining; the outer target lining is connected with a plurality of guniting pipes; a grading chamber of the grading module communicates with the grinding channel through an ascending pipeline, and the grading chamber is connected with a fine powder suction pipe. During use, slurry enters the grinding channel at a high speed through the slurry spraying pipe and collides with the target teeth on the side walls of the inner target lining and the outer target lining, and therefore the target type jet mill function that the slurry collides with the target teeth to be broken is achieved; in addition, the slurry collides with the target teeth and rebounds, and the rebounded slurry collides with the newly sprayed slurry, so that the collision type airflow milling effect of the relative collision of slurry particles is achieved; and particle swirling flow carried by steam is generated by the wall attachment effect of the fluid slurry, so that the effect of a vortex mill is also achieved.

The invention belongs to the technical field of brominated flame retardant synthesis, and particularly provides a decabromodiphenyl ethane bromine distillation process chlorination bromine removal process, which comprises the following steps: S1, adding bromine into a reaction kettle, adding a catalyst, and mixing; cooling and dropwise adding molten diphenylethane; then heating, carrying out a heat preservation reaction, and cooling to obtain a brominated crude product; s2, S201, adding the brominated crude product obtained in S1 into a bromine steaming kettle, and heating; s202, chlorine is introduced, and the total amount of bromine and chlorine is detected; carrying out segmented control on the introduced chlorine according to the total amount of bromine and chlorine; s203, when the total amount of bromine and chlorine is reduced to a threshold value, stopping introducing chlorine, standing, cooling, and introducing nitrogen; s3, filtering the feed liquid in the bromine steaming kettle, washing and purifying for three times, and finally, centrifugally dewatering to obtain a faint yellow solid; and S4, adding the faint yellow solid into a high-temperature jet mill, performing high-temperature aging to obtain white powder, and then performing jet milling on the white powder to obtain a finished product. Physical distillation is replaced by chemical replacement, so that bromine is highly separated.

The utility model relates to a fluidized bed jet mill which comprises a cylinder body, a fine powder channel, a powder classifier, a powder supply device, at least one pair of powder spray pipes, a fine powder channel, a fine powder channel, a fine powder channel, a fine powder channel, a fine powder channel, a fine powder channel, a fine powder channel, a fine powder channel, a fine powder channel, a fine powder channel, a fine powder channel and at least one pair of powder spray pipes, the powder spraying pipes are installed on a barrel of the crushing chamber, outlets of each pair of powder spraying pipes are oppositely arranged in the crushing chamber in the radial direction, inlets of the powder spraying pipes are connected with the first Venturi powder pumps respectively, and coarse powder returning pipes are connected between powder inlets of the first Venturi powder pumps and the coarse powder channel. Therefore, coarse powder separated from the grading chamber is crushed in the crushing chamber. Coarse powder mixed with high-pressure airflow collides in the crushing chamber through the powder spray pipe, so that collision is targeted, only coarse powder is beaten, the crushing efficiency is improved, the crushing effect is greatly improved, and the particle size of the powder is effectively controlled.

The present invention addresses the problem of providing a method for producing a flaked graphite dispersion having high dispersibility of flaked graphite. This method for producing a flaked graphite dispersion comprises: a first step in which a material to be treated, which contains one selected from the group consisting of graphite and a graphite compound, and a first organic solvent other than an amide-based solvent, a ketone-based solvent, or a sulfoxide-based solvent, is subjected to a wet jet mill treatment to obtain flaked graphite; and a second step in which the product obtained in step 1 is mixed with at least one specific solvent selected from the group consisting of an amide-based solvent, a ketone-based solvent, and a sulfoxide-based solvent to obtain a flaked graphite dispersion.

Disc airflow mill relates to airflow mill structure technical field, including disc cavity shell, coaxial fixed ring is equipped with in disc cavity shell, and the cavity of disc cavity shell is divided into gas cavity and crushing cavity from outside to inside by fixed ring, the circumference wall of fixed ring is surrounded with several channels which are inclined to the radial direction of disc cavity shell, and the nozzle is detachably connected in the channel. The utility model solves the problems of the prior art in the prior art, the setting position of the feed inlet is limited, the high-speed airflow with material is easy to damage the crushing airflow in the crushing cavity, and the crushing efficiency is affected; and the nozzles are mostly conical threads, which are screwed on the cavity wall, the conical thread processing is difficult, the nozzle is a consumable part, the replacement cost is high, and the cavity wall is a circular arc surface, which is difficult to process a conical thread hole on the circular arc surface.

The utility model relates to the technical field of abrasive material production and processing, and discloses a crusher structure and a jet mill, which comprise a crushing chamber and an auxiliary structure, the crushing chamber is in the shape of a hollow cylinder, the side wall surface of the crushing chamber is fixedly connected with an air pipe, the air pipe is in the shape of a circular tube, and the auxiliary structure is arranged in the cavity of the crushing chamber and used for guiding materials. The auxiliary structure comprises multiple air entraining plates, multiple material entraining plates and multiple flow guide blocks, the air entraining plates are detachably installed in a cavity of the crushing chamber, the material entraining plates are also detachably connected in the cavity of the crushing chamber, the flow guide blocks are fixedly connected to the wall faces of the material entraining plates, and the multiple air entraining plates and the multiple material entraining plates are arranged in the cavity of the crushing chamber in an annular array mode; the auxiliary structure accelerates the grinding efficiency of the materials by guiding the materials to be directly mixed with the high-speed air flow, so that the time required for grinding is effectively shortened, and the scheme has higher working efficiency compared with the prior art.

This invention discloses a dust removal device for an air jet mill used in bactericide production, relating to the field of bactericide production technology. It includes a filter chamber and a feeding chamber, and further includes: a dust removal mechanism disposed inside the filter chamber; and a pulse cleaning mechanism disposed on the top surface of the filter chamber. The dust removal mechanism includes a sealing partition, a movable tube, a filter bag, a revolution unit, a rotation unit, and a locking component. Through the coordinated operation of a driven gear, a driving gear, a second drive motor, a support plate, a sliding column, a movable groove plate, a sliding groove, and a pulse tube, the second drive motor can be periodically activated during the filtration process. Through the meshing transmission of the driving gear and the driven gear, and the intermittent engagement of the sliding column and the sliding groove, each movable tube drives the corresponding filter bag to rotate independently and intermittently, allowing multiple filter surfaces of each filter bag to rotate sequentially to the air inlet side, achieving the effect of evenly utilizing the entire outer circumference of a single filter bag.

This invention discloses a method for preparing sheet-like nano-sized cobalt hydroxide. The method includes the following steps: using cobalt nitrate as the cobalt source and sodium hydroxide solution as the precipitant, a co-precipitation reaction is carried out. The cobalt nitrate solution and sodium hydroxide solution are added together to a reaction vessel. By controlling the synthesis pH and temperature, the synthesized cobalt hydroxide slurry is washed with hot pure water, dried, and crushed using an air jet mill to obtain sheet-like nano-sized pink cobalt hydroxide with low sodium content. Specifically, the key to preparing sheet-like nano-sized cobalt hydroxide is to prevent oxidation and particle agglomeration during the synthesis process. This invention uses a low-temperature (40-60℃), low-pH (8.0-9.0) cobalt hydroxide synthesis process with a small amount of antioxidant added to prepare sheet-like micron-sized cobalt hydroxide that is not easily oxidized or agglomerated. In addition, at the low pH, the sodium content is low, making the subsequent filtration and washing steps easier to operate.

A single- or multi-stage mechanochemical reactor (1) according to Figure 1, selected from the group consisting of ball mills, attritor ball mills, vibrating ball mills, resonant acoustic mixers, hammer mills, impact mills, pin mills, cutting mills, jet mills and twin-shaft extruders, equipped with a self-regulating thermal management system for a temperature range of -195°C to 1000°C, wherein - the self-regulating thermal management system comprises at least one heat pipe (2) and / or at least one flat heat pipe (3) and at least one heat source (4) and at least one heat sink (5) which are in thermally conductive contact with each other, - that at least one heat pipe (2) and / or at least one flat heat pipe (3) is or are installed in and / or a static component (1.1) of the reactor (1) and is or are in thermally conductive contact with the material to be ground (1.2) or the material to be ground (1.2) and the grinding media or grinding balls (1.4) in at least one grinding chamber (1.3) of the reactor (1) and - the static component (1.1) serves as a heat source (4) or as a heat sink (5) for the at least one heat pipe (2) and / or the at least one flat heat pipe (3); as well as its use in the fields of chemistry, biochemistry, nanotechnology, pharmacy, biology and microbiology, and environmental technology.

The utility model provides a jet mill device, and relates to the technical field of magnet production. The jet mill device provided by the utility model comprises a jet mill body, the jet mill assembly is arranged in the jet mill body and is used for processing materials; the classifier is arranged in the jet mill body, communicates with the jet mill assembly and is used for screening materials; and the material output assembly comprises a pipe body and a separation protection part, and the inner wall of the pipe body is covered with the separation protection part. According to the material output assembly, the separation protection piece is arranged on the inner wall of the pipe body, so that the inner wall of the pipe body is separated from the materials, abrasion to the inner wall of the pipe body when the materials are discharged at a high speed is avoided, the service life of the material output assembly is prolonged, and the maintenance and replacement cost is reduced. And meanwhile, the phenomenon that the materials are adsorbed or accumulated on the inner wall of the pipe body in the conveying process to form oxide skin and cause blockage is relieved, the stability of the pressure in the jet mill body is conveniently maintained, and the granularity consistency of processed material powder is improved.

The invention relates to the technical field of batteries, and provides a product granularity control method and system. The system comprises a particle size detector, a plurality of jet mill devices and corresponding PLC devices, the particle size detector sequentially collects particle samples of the products in each jet mill device, determines the current particle size according to the collected particle samples of the products in the target jet mill device, and sends the current particle size to the target PLC device corresponding to the target jet mill device; and the target PLC equipment judges whether a preset frequency adjusting condition is met or not according to the granularity error between the current granularity and the granularity index of the product, and adjusts the minute wheel level frequency of the target jet mill equipment when the frequency adjusting condition is met so as to control the granularity of the product. Therefore, the frequency of the grading wheel of the jet mill equipment is automatically adjusted, the granularity of products is accurately controlled, and the production quality and efficiency of the products are improved.

The utility model provides a jet mill for lithium iron phosphate production, which relates to the technical field of lithium iron phosphate production devices, and comprises a bottom cylinder, an air distribution chamber, an air ejector pipe, a crushing cylinder, a grading cylinder, a grading wheel, a motor and a material receiving pipe, the air distribution chamber is annularly arranged on the outer wall of the bottom cylinder, one end of the air ejector pipe is connected with an air outlet arranged on the air distribution chamber, and the other end of the air ejector pipe is connected with an air outlet arranged on the grading wheel. The bottom of the smashing cylinder is installed on the top of the bottom cylinder, a feeding port is formed in the smashing cylinder, the bottom of the grading cylinder is installed on the top of the smashing cylinder, and the top of the grading cylinder is closed. The power output end of the motor is connected with the power input end of the grading wheel. By means of the lithium iron phosphate grading device, the problems that when a traditional jet mill crushes lithium iron phosphate, coarse particles which do not reach the standard easily reach the inside of the grading barrel along with airflow, consequently, the grading wheel frequently treats particles needing to be continuously crushed, and energy waste and abrasion of the grading wheel are caused can be solved.

The invention belongs to the technical field of nattokinase, and particularly discloses nattokinase powder based on superfine grinding of natto as well as a preparation method and application thereof, and the preparation method comprises the following steps: S1, uniformly mixing natto and a protective agent, spreading the mixture in a container, and pre-freezing for 2-24 hours to obtain pretreated natto; s2, transferring the natto into a freeze dryer, and sequentially performing normal-pressure cooling, vacuum heating and normal-pressure heating treatment to obtain freeze-dried natto; s3, transferring the anti-caking agent and the freeze-dried natto into a crusher, crushing and sieving to obtain crude natto powder; and S4, transferring the crude natto powder to a jet mill, and performing crushing, sieving and packaging to obtain the nattokinase powder. According to the nattokinase powder based on superfine grinding of natto as well as the preparation method and the application of the nattokinase powder, the specific surface area is increased, so that surface active groups are exposed, the adsorbability and the solubility are enhanced, the eating feeling of a beverage is improved, and the absorption rate of nattokinase is further increased after the beverage is eaten.

The utility model relates to anti-sinking jet mill equipment which comprises a jet mill body, the spraying mechanism comprises a plurality of crushing nozzles which are uniformly distributed; electronic weighing devices are arranged on the brackets and are connected with and provided with the jet mill bodies; the adjustable connecting mechanism comprises a fixing part mounted on the outer side wall of the jet mill body and a mounting plate vertically and fixedly connected to the end part of the lug plate, and the mounting plate is adjusted up and down to adjust the balance of the jet mill body; a group of adjusting pieces are mounted on the fixing piece in a relatively movable manner and are used for connecting and driving the mounting plate to move up and down; the two adjusting pieces drive the mounting plate to move upwards when moving oppositely, and the two adjusting pieces drive the mounting plate to move downwards when moving oppositely. The lifting mechanism comprises pulse nozzles staggered with the crushing nozzles, and the pulse nozzles are electrically connected through an electronic weighing device so as to be opened and closed in an intermittent operation mode. According to the utility model, the adjustment efficiency and precision of the installation flatness are effectively improved, the weighing precision is further ensured, and the problem of bottom sinking is effectively prevented.

The invention provides an anti-agglomeration supercapacitor dry electrode preparation method, and belongs to the technical field of supercapacitor dry electrodes, the preparation method comprises the following steps: S1, mixing an active carbon material, a conductive agent and PTFE to obtain a premixed material; s2, adding the premixed material into a jet mill for fibration treatment to obtain a fibration material; s3, compacting the fiberized material, then carrying out crushing treatment, and carrying out high-temperature rolling treatment on the crushed powder to obtain a self-supporting carbon film; and S4, compounding the self-supporting carbon film and the carbon-coated aluminum foil to obtain the anti-agglomeration super capacitor dry electrode. According to the dry electrode preparation method provided by the invention, the problem of uneven distribution caused by PTFE fibration degree difference can be solved, the film forming uniformity is effectively improved, and the prepared super capacitor dry electrode has relatively high electrochemical stability.

The invention discloses a preparation method of a modified nano carbon material and a lithium ion battery. Equipment for implementing the preparation method comprises a batch feeder, a jet mill and a demagnetizing machine which are sequentially arranged in the material advancing direction, and the jet mill and the demagnetizing machine are sequentially arranged from top to bottom in the height direction; the preparation method comprises the following steps: step 1, a nano carbon material and a modified material are mixed according to a mass ratio of 100: 0.1-5 and then enter a jet mill through a batch feeder, the modified material comprises a polymer and micromolecular amine, and the mass ratio of the polymer to the micromolecular amine is 100: 5-10; and step 2, after being crushed by the jet mill, the materials enter a demagnetizer in a free falling manner under the action of gravity to be demagnetized. The nano carbon material has better dispersity and lower metal impurity content.

The invention relates to the technical field of lithium battery raw material processing, in particular to a fine crushing device and process for a lithium manganese iron phosphate material. The fine crushing device comprises an airflow crushing machine body, and a grading assembly is arranged at the top end in the airflow crushing machine body; the sanding machine body is positioned on one side of the airflow crushing machine body; the fluidized bed drying and coating machine body is positioned on one side of the sanding machine body; the opening and closing assembly comprises an annular pipe arranged on the outer side of the jet mill body in a sleeving mode and adjusting bases evenly arranged above the annular pipe at intervals in the circumferential direction of the outer wall of the jet mill body. The adjusting assembly comprises an annular plate arranged on the outer side of the airflow smashing machine body in a sleeving mode and sliding blocks fixedly arranged at the front end and the rear end of the inner wall of the annular plate. The fine crushing device for the lithium manganese iron phosphate material can be used for inspecting a high-pressure airflow pipe, reducing the pressure of an air source, reducing the temperature of a grinding space, avoiding manganese oxidation, synchronously completing drying and coating of lithium manganese iron phosphate, and avoiding secondary agglomeration.

The invention relates to the technical field of staged energy-saving jet mills, and discloses a staged energy-saving jet mill and an ultrafine crushing method for ores, the staged energy-saving jet mill comprises a mounting rack, a feeding bin is mounted in the mounting rack, the bottom of the feeding bin is connected with a material conveying pipe, an air inlet mechanism is mounted in the mounting rack, and the air inlet mechanism is connected with an air outlet of the feeding bin; the outer portion of the air inlet mechanism is connected with an upper air inlet pipe, the outer portion of the air inlet mechanism is connected with a lower air inlet pipe, and the other end of the lower air inlet pipe is connected with an airflow jet mechanism. In the crushing process, the discharging control mechanism can input crushed powder into the collecting bin at a fixed speed, and when the mass of the powder in the discharging control mechanism is increased, the speed of ore raw materials entering the airflow crushing bin can be controlled, so that the balance of the total amount of the ore raw materials in the airflow crushing bin is guaranteed; and when the total amount of the ore raw materials in the airflow crushing bin is kept balanced, the airflow injection mechanism can perform efficient and high-quality crushing on the ore raw materials.

The invention belongs to the technical field of inorganic filler modification, and particularly relates to a rubber filler preparation method, which comprises: (1) contacting fly ash with superheated steam in a fluidized bed jet mill, and grinding to obtain a crushed material; (2) after being separated by a grading wheel, the crushed materials and steam enter a connecting pipeline arranged between a fluidized bed jet mill and a first bag-type dust collector; a nozzle is mounted on the connecting pipeline, and a modifier solution and inert gas are respectively added into the connecting pipeline; under the conveying of inert gas, the ultrafine powder is suspended in the connecting pipeline and reacts with the atomized modifier; (3) separating the modified ultrafine powder from steam and inert gas; and (4) separating in a second bag-type dust collector arranged at the top of the buffer bin, and obtaining the superfine modified fly ash filler after separation. The modified filler prepared by the method has the characteristics of small particle size, narrow distribution and good dispersity, and meanwhile, the modification time is shortened on the basis of ensuring the modification effect.

The utility model relates to the technical field of copper oxide crushing, and discloses a continuous feeding jet mill for copper oxide, which comprises a top box, the outer side of the top box is fixedly connected with a crushing mechanism, one side of the top box is fixedly connected with a material conveying barrel, one side of the material conveying barrel is fixedly connected with a rotating motor, and the rotating motor is fixedly connected with a feeding mechanism. And one end of the rotating motor is fixedly connected with an auger rod. According to the continuous feeding jet mill for copper oxide, through the arrangement of the crushing mechanism, a hydraulic rod is started, a piston rod of the hydraulic rod drives a support to move, and therefore after a first servo motor and a first crushing roller are driven to move, the first servo motor and a second servo motor are started; the first servo motor and the second servo motor respectively drive the first crushing roller and the second crushing roller to synchronously and reversely rotate, so that the raw materials are preliminarily crushed before entering the jet mill, the particle size of the preliminarily crushed raw materials can be adjusted, and the crushing efficiency of copper oxide materials with higher hardness or serious agglomeration is improved.