264 results about "Roller mill" patented technology

The utility model relates to a secondary rolling plug for rolling a seamless tube, which is characterized in that a pipe throwing section, a rounding section, a wall-reducing uniform integrated transformation section, a compression rotating rolling section, a contact biting section and a contact section are sequentially formed on a plug body from right to left; and the outer side surfaces of the pipe throwing section, the rounding section, the wall reduction uniform integrated transformation section, the compression rotating rolling section, the contact biting section and the contact section are all revolution surfaces taking the axis of the plug body as the axis. Through the design of the surface shape of the top body, the surface of a non-ferrous metal tube is not easily scratched, and the technical problems that the roll shape of a conventional three-high rolling mill cannot realize biting rotation, clamping in the rolling process and smooth tube throwing in the non-ferrous metal rolling process are solved; when the plug body outputs lubricating oil, large metal extension and extension coefficients are achieved, the compactness of metal material structures is improved, the problems of multiple inner surface defects and spiral traces in the core rod rolling process are solved, and the quality problems caused by inner pitted surfaces and secondary oxidation in the large extension process are solved through a self-lubricating system.

The invention belongs to the technical field of coating breeding, and particularly relates to a pretreatment method for iron powder coating breeding. Comprising the following steps: (1) mixing granular urea, calcium superphosphate and potassium chloride to obtain granular fertilizer; (2) dissolving granular fertilizer in water to prepare a granular fertilizer aqueous solution, soaking the rice seeds in the granular fertilizer aqueous solution for 3-5 hours, taking out the rice seeds, spreading the rice seeds in a shade place, and airing the rice seeds for 10-20 minutes to obtain fertilizer-soaked seeds; (3) mixing iron powder, granular fertilizer and bentonite in a powerful mixer for 5-10 minutes to obtain an iron fertilizer mixture, and rolling the iron fertilizer mixture through a high-pressure roller mill to obtain a roller-milled material; the rice seeds are coated with iron powder, so that the dead weight of the seeds is increased, the floating rate and the bird damage loss rate are greatly reduced, and the purpose of direct seeding of the rice seeds can be achieved.

An abnormal-vibration-predicting method for a roll grinder that grinds an outer peripheral surface of a rolling roll with a grinding wheel while the rolling roll rotates includes an acquisition step and a prediction step. The acquisition step acquires a rigidity parameter related to a rigidity of the roll grinder and a wheel rotation parameter related to a rotational speed of the grinding wheel. The prediction step predicts an occurrence of an abnormal vibration in a process of grinding the rolling roll by using the rigidity parameter and the wheel rotation parameter.

The utility model relates to the technical field of dry grinding and dry separation of iron ore and similar processes, and particularly discloses a dry grinding and dry separation system which comprises an incoming material conveying system, a roller mill, a dynamic powder concentrator, a dry classification cabin and a fine powder collecting and conveying system. A discharging hole of the supplied material conveying system is communicated with a feeding hole of the roller mill; a discharging hole of the roller mill is communicated with a feeding hole of the dynamic powder concentrator; a coarse particle material outlet of the dynamic powder concentrator is communicated with a material inlet of the dry type grading cabin; an oversize coarse particle discharging opening of the dry type grading cabin is communicated with a feeding opening of the roller mill; and a fine powder discharge hole of the dynamic powder concentrator is communicated with the fine powder collecting and conveying system. Finished product materials with various particle sizes can be provided, and the requirements of customers for different finished product particle sizes are met; fine powder screened by the dynamic powder concentrator is collected by a dust collector and then is directly conveyed to a tailing discarding procedure, so that the handling capacity of the dry classification cabin is reduced; the use condition of the dry-type grading cabin is optimized, and the system flow is simplified.

The invention relates to the field of powder engineering and technology, in particular to a vertical mill millstone particle segregation degree quantification and actual measurement method which comprises the steps that a vertical mill simulation model is established according to physical property parameters of a simulation material, and simulation is conducted; uniformly dividing the simulation area into grids in the radial direction and the axial direction; respectively counting the total mass of the particles in each grid, and calculating the average particle size of the grids and the average particle size of all the particles; calculating radial and axial grid weights according to a mass ratio, and calculating a traditional mass segregation index and a traditional particle size segregation index as well as a radial weighted mass segregation index and an axial weighted particle size segregation index; and partitioning the weighted segregation index, and quantifying the segregation degree. By applying the method, the axial segregation measurement precision can be improved, the radial segregation measurement workload can be reduced, and then the segregation degree of millstone particles can be efficiently and accurately evaluated.

The invention provides a method for producing alkaline magnesian pellets and the alkaline magnesian pellets. The method comprises the steps that S1, limonite powder and dolomite powder are continuously blended according to a preset proportion to form a pre-blended mixture, and the pre-blended mixture is continuously fed into a dry method vertical roller mill; s2, extruding, shearing and grinding the pre-prepared mixture in a dry-method vertical roller mill, and meanwhile, introducing high-temperature separation flue gas to perform winnowing on the ground material to obtain single mixed powder; s3, directly adding water into the single mixed powder, mixing and pelletizing to obtain green pellets; and S4, the green pellets are fed into a chain grate-rotary kiln system to be roasted, and the alkaline magnesian pellets are obtained. The problems that in the production process of producing the alkaline magnesium pellets from the limonite powder and the dolomite powder, the number of raw material processing procedures is large, energy consumption is high, and mixing is insufficient are effectively solved. And the effects of improving the pellet quality, saving energy, reducing consumption and reducing carbon emission are achieved.

The invention discloses a high-pressure roller mill roller surface wear self-adaptive repair method, and relates to the field of mine crushing, and the method comprises the following steps: S1, wear detection; step S2, performing pretreatment; s3, carrying out gradient restoration; step S4, curing and forming; and S5, performing adaptation verification. By the adoption of the self-adaptive repairing method for roller surface abrasion of the high-pressure roller mill, precise repairing and efficient repairing of roller surface abrasion are achieved, the abrasion resistance of a repairing layer and the binding force of a base body are improved, the service life of the roller surface is prolonged, the repairing cost and the operation and maintenance frequency are reduced, and meanwhile it is ensured that the repaired roller surface is matched with the crushing working condition.

The utility model relates to the technical field of roller mills, and discloses a roller mill for tailing treatment, which comprises a roller mill body, a movable roller is movably mounted in the roller mill body, a fixed roller is rotatably mounted in the roller mill body, a steady flow bin is fixedly mounted at the top of the roller mill body, and a discharge hopper is fixedly mounted at the bottom of the roller mill body. A middle stock bin is fixedly installed at the top of the steady flow bin, a material level detector is fixedly installed in the middle stock bin, two sets of installation plates are symmetrically and fixedly installed at the top of the middle stock bin, a material guiding assembly is arranged between the two sets of installation plates, and a dredging assembly comprising a first dredging tooth frame and a second dredging tooth frame is arranged between the steady flow bin and the middle stock bin. By arranging the dredging assembly, the tailings are prevented from being blocked in the flow stabilizing bin, normal feeding of the tailings is guaranteed, meanwhile, when the tailings are stirred through the dredging tooth frame I and the dredging tooth frame II, the stacked caked tailings can be disturbed and crushed, and the possibility that the tailings are caked is reduced.

The application provides a vertical roller mill with both the grinding roller and the grinding disc being driving members, and a design method thereof. The grinding roller and the grinding disc are driven to rotate by different driving devices, and the grinding roller and the grinding disc are combined in rolling and driven to bite into the material, so that the problem of material accumulation at the front end of the grinding roller and the problem of large vibration of the mill are solved, a plurality of smaller motors and reducers are used to replace the original driving device, and the difficulty of large-scale of the vertical roller mill is solved; the rotating speed of the grinding roller and the grinding disc is adjustable, the adaptability of the vertical roller mill to different materials is improved, and the capacity of the mill is further improved. Moreover, the second reduction device used in the vertical roller mill is a two-stage planetary structure, the transmission efficiency is improved, the torque is ensured to be large, and the structure is more compact. In addition, in the design of the vertical roller mill, multiple parameters such as material characteristics are comprehensively considered, and reasonable design is performed, so that the best grinding efficiency is achieved.

This invention discloses a beneficiation method for iron, boron, and uranium minerals in uranium-boron iron ore, which has the following characteristics: 1. The three-stage closed-circuit crushing product is laminated and pulverized using a high-pressure roller mill, so that the -5mm particle size content in the crushed product is greater than 70%. By utilizing the technology of multiple crushing and less grinding, the energy consumption of beneficiation can be reduced and the grinding efficiency can be improved; 2. Iron concentrate is obtained by staged grinding and staged magnetic separation. The tailings of iron beneficiation, such as the tailings of coarse magnetic separation, primary magnetic separation, and secondary magnetic separation, are subjected to stepwise gravity separation to obtain uranium concentrate and boron concentrate in stages, thereby improving the recovery rate of B2O3 and U in the boron and uranium concentrates and comprehensively utilizing iron, boron, and uranium resources; 3. The uranium minerals in the iron beneficiation tailings are separated by a combination of Nelson centrifugal concentrator, shaking table, and suspended cone concentrator, thereby improving the U recovery rate in the uranium concentrate. The Nelson centrifugal concentrator can be used for roughing of uranium minerals, the suspended cone concentrator can recover fine-grained uranium minerals, and the shaking table can recover relatively coarse-grained uranium minerals.

The present application relates to vertical roller mill technical field, specifically to a kind of quick turning out rocker arm device, including stand and the upper end of stand is rotatably connected with swing arm, the free end of swing arm is connected with roll shaft arm and roll shaft arm is pitch deflection relative to swing arm;Roll shaft arm is connected with grinding roller assembly and drives grinding roller assembly synchronous pitch, grinding roller assembly is also provided with locking assembly matched with swing arm, locking assembly is used to lock grinding roller assembly with swing arm and keep fixed;The lower of roll shaft arm is also provided with drive assembly, and the drive assembly is used to exert longitudinal deflection force to roll shaft arm.The present application is simplified by the structure of stand, reduces connecting fastener, and is adjusted to roll shaft assembly by the cooperation of swing arm, roll shaft arm, more flexible and convenient, fast and efficient in specific use process.

The invention relates to a preparation method of a pure titanium arc-shaped plate for orthopedic implantation, which comprises the following steps: heating a pure titanium bar blank in an online annealing furnace, controlling the furnace temperature at 600-700 DEG C, and keeping the temperature for 5-10 minutes; then carrying out rough rolling on the pure titanium bar blank by adopting a double-roller mill, wherein the rough rolling process sequentially comprises flat rolling, vertical rolling and profile rolling; a four-roller mill is adopted for conducting finish rolling on a product obtained in the rough rolling process, and an arc-shaped blank is obtained; then the arc-shaped blank is placed in an annealing furnace to be annealed, the annealing temperature ranges from 600 DEG C to 700 DEG C, and the annealing time ranges from 1 h to 2 h; then the annealed arc-shaped blank is straightened; and finally, the straightened arc-shaped blank is subjected to sand blasting and acid pickling, and a pure titanium arc-shaped plate finished product is obtained. The R angle of the pure titanium arc-shaped plate prepared through the method reaches the standard in mold filling, the mechanical property is excellent, the human body implantation requirement can be met, and the surface roughness is low.

The application discloses a kind of to the roller structure of roll mill shaft with circulating cooling circuit, including shaft roller, cooling water input pipe and first end cover, the both ends of roll shaft are equipped with bearing support section, shaft roller is equipped with the cooling cavity that passes through the bearing support section in the end face of one end of shaft roller to the other end of shaft roller, cooling cavity forms cooling cavity opening on the end face of one end of shaft roller, first end cover is sealingly connected on cooling cavity opening, the end face of one end of cooling liquid return cavity is equipped on the end face of first end cover, cooling liquid return cavity is equipped with cooling liquid inlet and cooling liquid outlet, one end of cooling water input pipe is located in the bearing support section of the other end of shaft roller, the other end is sealingly connected together with cooling liquid inlet, cooling liquid return passage is formed between the side wall of cooling water input pipe and cooling liquid return cavity, cooling liquid return passage is connected with cooling cavity and cooling liquid outlet.The application has the advantage that bearing can be cooled, solves the problem that existing sand making machine bearing cannot be fully cooled.

The utility model belongs to the technical field of roller mills, and particularly relates to a ceramic raw material grinding device of a high-pressure roller mill, which comprises a base, a support is mounted at the top of the base, a first casing is fixedly mounted at the top of the support, a second casing is mounted at the top of the support in a pin joint manner, a fixed roller is rotatably mounted on the inner side of the first casing, and a movable roller is rotatably mounted on the inner side of the second casing. A screening device support is installed at the top of the base, a screening box is installed at the top of the screening device support, spring telescopic rods are installed on the inner side of the screening box, the bottom ends of the spring telescopic rods are connected with a screen, a discharging pipe is installed on the side face of the screening box, and a bearing lifting device is connected to the side face of the screening box. According to the device, through the functions of automatically screening the ground materials and automatically recycling the materials of which the particle sizes do not reach the standard, and the function of automatically feeding the materials into the roller mill again for secondary crushing, the crushing efficiency and effect are greatly improved.

The invention relates to a roller mill with a rotating grinding bowl having a grinding bowl rim. In addition, a grinding roller is provided. The roller mill further has a grinding chamber wall which surrounds the grinding bowl at least at the height of the grinding bowl edge. A free space is provided between the grinding chamber wall and the grinding bowl edge, which free space is fluidically connected to the process air supply such that the process air flow can flow upward through the free space. According to the invention, the roller mill is developed in such a way that a mixing body for generating an air vortex is arranged in the free space, the mixing body having a substantially flat main body and being arranged at an angle of inclination of at least 15 DEG with respect to the flow direction of the process air flow. In addition, the mixing body is placed in the free space such that at least 66% of the periphery of the mixing body can flow freely around during operation by the process air flow.

The utility model relates to the technical field of rolling mills, and discloses a three-roller rolling mill with a radial locking structure for round steel processing, which comprises a rack and a rolling mill main body, the rolling mill main body is arranged inside the rack, an opening is arranged at the middle position inside the rolling mill main body, and a mounting seat is fixed at the top of the front end of the rolling mill main body. When the three-roller rolling mill with the radial locking structure for round steel machining is used for rolling a round steel piece, after the round steel piece is guided out from the interior of an opening, a first servo motor can be controlled to start to drive a bidirectional lead screw to rotate, and the first servo motor rotates and can drive two sets of side bases to move inwards through a threaded sleeve in threaded connection at the same time; the locking device is simple in structure and can abut against the two sides of the round steel piece respectively, auxiliary locking and positioning are carried out on the round steel piece at the rolling outlet of the rolling mill, deformation of the round steel piece is reduced, and the problem that auxiliary radial locking and positioning are inconvenient to carry out on the round steel piece is solved.

The utility model discloses a material distributing and discharging device of a vertical roller mill, and belongs to the technical field of material distributing and discharging. A material guide cone is mounted above a millstone in an ash hopper of the vertical roller mill material distributing and discharging device; an annular material area for collecting returned materials of the powder concentrator is formed between the material guide cone and the ash hopper; a plurality of first material distribution cones are arranged between the material guide cone and the ash hopper in the circumferential direction, and the annular material area is equally divided into a plurality of hopper-shaped material areas by the first material distribution cones; a first feed opening is formed in each hopper-shaped material area; the first discharging pipe is arranged on the outer side of the ash hopper and communicates with the first discharging opening, a feeding nozzle is installed at the lower end of the first discharging pipe, and the first discharging pipe extends to the feeding side of the grinding roller through the feeding nozzle; the second material distributing cone is arranged between the two first material distributing cones; the two second discharging openings are formed in the two sides of the second material distribution cone correspondingly and located at the bottom of the first material distribution cone. The Y-shaped discharging pipe is arranged on the outer side of the ash hopper, and the two ends of the upper portion of the Y-shaped discharging pipe communicate with the two second discharging openings correspondingly. According to the device, materials can be finely sorted, and the supplied materials flow out stably.

This invention discloses a process for recovering low-grade copper from semi-autogenous grinding aggregates in copper ore beneficiation plants. The process employs a combined flow of high-pressure roller mill crushing, coarse-grained heavy media separation, and fine-grained Nelson centrifugal separator. After high-pressure roller mill crushing of the semi-autogenous grinding aggregates, the coarse-grained material is fed into a heavy media separator, while the fine-grained material is fed into a Nelson centrifugal separator. The heavy media concentrate and the Nelson centrifugal separator concentrate are combined to form a copper concentrate, and the tailings from both are combined to form the final tailings. This invention utilizes physical beneficiation methods to enrich copper ore, which is more environmentally friendly and reduces pollution compared to conventional flotation methods. Furthermore, the process is simple and easy to operate, leading to lower costs and providing a new and reliable way to economically recover copper minerals from semi-autogenous grinding aggregates.

The present application belongs to the field of non-ferrous metal dressing process, and relates to a grinding-flotation short process separation method for processing fine molybdenite. The process uses a high-pressure roller mill and a tower mill crushing and grinding process to replace the fine crushing and two-stage continuous ball milling operation in the traditional crushing and grinding process, and uses a flotation column to replace a flotation machine for flotation operation, thereby simplifying the production process flow of molybdenite. The present application has the advantages that the high-pressure roller mill and the tower mill change the crushing and grinding mode of the ore, significantly reduce the crushing and grinding energy consumption, and more effectively protect the flaky structure of molybdenite. The particle size distribution of the grinding product is reasonable, and the amount of fine and micro-fine particles (-20 μm) is reduced, thereby creating good conditions for the flotation operation. The flotation column is used for flotation, compared with the flotation machine, the recycling of middling slurry is reduced, the fine molybdenite that has been dissociated is fully recovered, and the recovery rate of molybdenite is improved. In addition, the flotation column flotation is beneficial to obtaining high-grade concentrate product, and improves the separation index and economic benefits of molybdenite.

The application provides a product particle size control method, device, equipment and medium. The method comprises the following steps: obtaining a first content value corresponding to a first extrusion roller frequency of a roller mill based on a preset fitting relationship between the content of the product particle size and the extrusion roller frequency; processing the first content value and a target content value of the product particle size based on a predictive control model to obtain a target frequency change amount for adjusting the extrusion roller frequency; and adjusting the extrusion roller frequency of the roller mill based on the first extrusion roller frequency and the target frequency change amount. The method of the application is efficient and automatically controls the product particle size without manual intervention.

The utility model relates to the field of pipeline fixing, in particular to a modularized pipeline clamp and a cement roller mill. The modularized pipeline clamp comprises a plurality of fixing clamps and a plurality of clamping parts, wherein the plurality of fixing clamps are detachably connected; the fixing clamp comprises two pipe clamps, and the two pipe clamps define a threading hole in an opposite posture and are connected through a detachable structure. The detachable structure maintains or relieves connection of the two pipe clamps, and the distance between the two pipe clamps can be adjusted in the connecting process. The cement roller mill includes a modular line clamp. By means of the modularized pipeline clamp, the technical problem that an existing pipeline fixing mode is poor in adaptability is solved, and safety management of pipelines of different specifications and different layouts is achieved.

The invention relates to the technical field of cold-rolled silicon steel production strip shape control, in particular to a silicon steel twenty-high roll mill strip shape standard mode curve construction method which comprises the steps of collecting process data and conducting preprocessing, fitting a model through training data, calculating a model output value, and then conducting traversal search in the interval of + / -15% of the output value. Obtaining a hidden layer neuron node number n; traversing and searching 0.1-0.4, and determining the learning rate lr of the neural network of the hidden layer; combining the purelin transfer function, the logsig transfer function and the sigmod transfer function to generate three different combinations, and selecting the transfer functions of the double-hidden-layer network and the output layer; determining a training function of the hidden layer neural network by adopting a traversal method; optimizing the hidden layer neural network model by adopting a fast non-dominated sorting genetic algorithm, decoding a weight and a threshold value of a neural network, endowing the neural network model, and outputting the neural network model optimized by the non-dominated sorting genetic algorithm; and the standard pattern curve of the silicon steel twenty-high roll mill plate shape is constructed.

A vertical mill based on 4-PSS parallel mechanism and a use method, comprising a vertical mill, a 4-PSS parallel mechanism is adopted inside the vertical mill, the 4-PSS parallel mechanism comprises a sliding block, the sliding block is installed in a sliding rail parallel to a Z axis inside a vertical mill wall and is connected with an upper end of a branch chain through a spherical pair, a lower end of the branch chain is connected with an upper platform through a spherical pair, the upper platform is parallel to an XOY plane and is installed in cooperation with a roller mill system; when the vertical mill works, collision force generated by contact between a mill roller and a raw material layer in a mill disc trough can be effectively absorbed by the 4-PSS parallel mechanism; the vertical mill has simple and compact structure, large rigidity, large bearing capacity, stronger sealing and good dynamic response performance.

The invention relates to an automatic detection and compensation regulation and control system for a side baffle of a high-pressure roller mill, which can detect the wear degree of the side baffle in real time and transmit the wear degree to a regulation and control system by integrating a wear detection sensor in the side baffle, and the regulation and control system combines wear data and equipment operation parameter conditions. The precise distance of the side baffle needing to move towards the center of the roll shaft in a compensation mode is obtained through intelligent analysis, a regulation and control instruction is sent to the side baffle automatic compensation regulation and control device to be executed, intelligent and precise regulation and control of the side baffle are achieved, and the optimal distance between the side baffle and the roll shaft is kept all the time; compared with a traditional maintenance means, the method has real-time performance, intelligence and high accuracy, abrasion can be found in time, precise and automatic regulation and control can be conducted on the side baffles, and therefore the sustainability of high-performance operation of the high-pressure roller mill is improved, the downtime is shortened, the operation rate is increased, the maintenance cost is reduced, and it is guaranteed that equipment is always in the optimal working condition.

The invention provides a method for producing calcium aluminate powder by replacing part of bauxite with aluminum ash. The method comprises the following steps: respectively discharging secondary aluminum ash, limestone and bauxite from a raw material bin according to a ratio, and feeding into a stirrer; the preparation method comprises the following steps: uniformly stirring raw materials in a stirrer to obtain a mixture, spraying a liquid binder while stirring, and feeding the mixture into a high-pressure roller mill for treatment to obtain a material cake; feeding the material cake into a vertical mill through a discharging chute for grinding, separating fine powder through a powder concentrator under the driving of airflow, collecting the fine powder through a dust collector to obtain a raw material, and feeding the raw material into a homogenizing silo for storage; and feeding the raw material in the homogenizing silo into a preheater for preheating, feeding into a rotary kiln for calcining to obtain clinker, cooling the clinker, and grinding into powder to obtain the calcium aluminate powder. According to the invention, the homogeneity problem of the raw materials is effectively solved, the operation efficiency and stability of the system are improved, high-value utilization of multiple solid wastes is realized, the production operation environment is improved, the equipment corrosion risk is reduced, and the process adaptability is strong.

The invention discloses a crushing roller group, which comprises a tooth roller, the center of the tooth roller is provided with a through hole along the axis of the tooth roller, and the through hole is internally provided with at least one key slot; key blocks corresponding to the key grooves in number and position are arranged on the surface of the rotating shaft, gaskets are arranged on the two sides of each key block, when the key blocks are inserted into the key grooves, gaps exist between the top faces of the key blocks and the key grooves, and the gaskets make contact with the side walls of the key grooves; a shaft sleeve is arranged between the tooth roller and the rotating shaft; the gasket and the shaft sleeve are both made of soft materials. The invention further discloses a double-roller machine. The key groove in the central through hole of the tooth roller and the key block on the rotating shaft are correspondingly and specially designed, so that the tooth roller is not in direct contact with the surfaces of the key block and the rotating shaft under the condition that the rotating shaft can provide enough driving force for the tooth roller, and the condition that the tooth roller bursts due to different thermal expansion rates of the rotating shaft and the tooth roller is avoided.

1. Name of the product in this design: Roller Coal Mill. 2. Purpose of this design: to grind raw coal into fine powder. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1. 5. Since the bottom surface of the product is not visible, the bottom view is omitted.

The present invention relates to a device 1 for comminuting particularly calcareous minerals to produce a middle fraction for use in a fluidized bed, wherein the device 1 comprises a material feed 20, a good bed roller mill 30, a first size-selective separation device 20.a second size-selective separating device 40, a middle fraction outlet and a fine fraction outlet, wherein the good bed roller mill 30 has a mill inlet 31 and a mill outlet 32, wherein the first size-selective separating device 20 has a first material inlet 21, a first fine outlet 22 and a first coarse outlet 23, wherein the second size-selective separating device 40 has a second material inlet 41, a second fine outlet 42 and a second coarse outlet 43, wherein the material feed 20 is connected to the first material inlet 21, wherein the first coarse outlet 23 is connected to the mill inlet 31, wherein the mill outlet 32 ​​is connected to the first material inlet 21, wherein the first fine outlet 22 is connected to the second material inlet 41, wherein the second coarse outlet 43 is connected to the middle fraction outlet, wherein the second The fine outlet 42 is connected to the fine fraction outlet.

The invention discloses a thrust monitoring system and method based on a vertical roller mill inner grinding roller pressurization hydraulic cylinder, and relates to the technical field of industrial solid waste treatment material management. The multi-source physical signal acquisition module is used for synchronously acquiring and preprocessing multi-source physical signals from a hydraulic cylinder rodless cavity oil pressure sensor, a piston rod acceleration sensor, a grinding roller bearing seat vibration sensor and a feeding amount meter which are mounted on vertical roller grinding equipment; a pressure sensor, an axial acceleration sensor, a vibration sensor and a material quantity metering instrument are mounted at each part of the vertical roller mill, multi-source physical signals are collected in real time, and dynamic thrust is calculated by combining multi-source signal fusion with a dynamic friction force estimation model, theoretical hydraulic thrust and inertia force. The net thrust actually acting on materials by the thrust of the grinding roller pressurizing hydraulic cylinder in the vertical roller mill can be accurately calculated in real time, and the problem that traditional static oil pressure measurement thrust sensing is distorted and inaccurate is solved.