265 results about "Cement grinding" patented technology

The invention discloses an intelligent regulation and control method applied to cement grinding particle gradation, and relates to the technical field of cement grinding control, and the method comprises the following steps: S1, collecting grinding system operation parameters in real time, including mill current, powder concentrator rotating speed, feeding amount, grinding sound signals and online particle size detection data; s2, calculating core characteristic parameters based on the operation parameters, wherein the core characteristic parameters comprise an effective crushing power index, a dynamic fine powder retention rate and an in-mill material filling state index; s3, inputting the core characteristic parameters into a grading prediction model, and outputting predicted particle size distribution; s4, generating an adjustment instruction through a hierarchical control strategy based on the predicted particle size distribution; and S5, outputting the adjustment instruction to an execution mechanism. The particle size distribution is accurately predicted by collecting and analyzing the operation parameters of the grinding system in real time and combining core characteristic parameters, closed-loop intelligent regulation and control are achieved, the grinding efficiency, stability and product quality are improved, and meanwhile the control precision is optimized.

The invention discloses a nano material modified alcohol amine grinding aid as well as a preparation method and application thereof, and the preparation method comprises the following steps: firstly, carrying out esterification reaction on alcohol amine and an acid small monomer containing double bonds to generate an esterification product; then, carrying out bulk polymerization on the esterification product and a silane coupling agent KH-570; and finally, combining the bulk polymerization product with the nano-material through a dehydration reaction of a silane coupling agent and hydroxyl on the surface of the nano-material to form the nano-material modified alcohol amine grinding aid. According to the invention, the nano material is directly grafted into the alcohol amine, so that the dispersity of the nano material in the cement grinding process can be effectively optimized, the friction force and energy consumption among cement particles can be reduced, the efficiency and stability of the cement production process can be improved, and the strength and durability of the cement product are improved.

The invention discloses a liquid cement grinding aid and a preparation method thereof, and belongs to the technical field of cement grinding aid preparation, the liquid cement grinding aid comprises the following raw materials by weight: 76-80% of water, 18-20% of hydrochloric acid and 2-4% of sodium hexametaphosphate. The preparation method of the liquid cement grinding aid comprises the following steps: uniformly mixing the raw materials according to the weight percentage, and carrying out activation reaction to prepare the liquid cement grinding aid. The cement grinding aid disclosed by the invention is prepared by mixing hydrochloric acid, water and sodium hexametaphosphate according to a specific proportion, and through scientific regulation and control of the synergistic effect of all the components, the cement grinding aid has good grinding aiding performance and remarkably improves the specific surface area and grinding aiding efficiency of cement; the component design fully considers the cement hydration process and the compatibility with the water reducing agent.

The invention relates to the technical field of powder selecting machines, and particularly discloses a composite powder selecting machine which comprises a first filtering bin, an airflow bin and a second filtering bin, a plurality of scraping plates are rotationally connected in the first filtering bin through a gear ring, a fixing ring is rotationally connected to the gear ring, a discharging opening is formed in the fixing ring, a first vertebral plate is fixedly connected in the first filtering bin, and a second vertebral plate is fixedly connected in the second filtering bin. The airflow bin is fixedly connected with a second filtering bin, a vertebral plate II and a conical part are fixedly connected in the second filtering bin, the second filtering bin is fixedly connected with a discharging bin, the vertebral plate II is fixedly connected with a material guide pipe, the gear ring is connected with a motor II through a gear, and the airflow bin is connected with an air pump through an air guide pipe. The cement grinding device has the beneficial effects that cement can be scattered through a stirring plate in the storage bin, coarse powder can be filtered out through a first vertebral plate in the first filtering bin and is discharged from a discharging port through a scraper blade, the cement can rotate along a second vertebral plate through the airflow bin, medium powder and fine powder are separated, and finally the medium powder and the fine powder are separated.

The invention relates to the technical field of cement grinding control, in particular to a cement grinding parameter adjusting method and system based on grain composition, which can improve the quality control capability and efficiency in the cement production process and reduce the production cost and environmental influence. The method comprises the following steps: collecting a cement grinding production sample in real time, and carrying out a screening test on the production sample to obtain real-time grain composition data of cement grinding; calculating an error between the real-time grain composition data and preset target grain composition data to obtain a grain composition error vector; obtaining a plurality of grain composition error vectors according to a preset frequency; aligning the error values of the same grain size at different time points in the plurality of grain size distribution error vectors to the same column, aligning the error values of each grain size at the same time point to the same row, and arranging according to a time sequence to obtain a cement grinding particle error characteristic matrix; and inputting the cement grinding particle error characteristic matrix into a pre-constructed particle grading error analysis model.

The invention discloses a preparation method of low-cost solid-waste-based sulphoaluminate cement, and relates to the technical field of cement preparation.The preparation method comprises the steps of solid waste pretreatment, ingredient design, raw material preparation, low-temperature calcination, clinker quenching and cement powdering.By means of the scheme design, high-aluminum / sulfur-rich solid waste such as red mud, desulfurized gypsum and fly ash is used for replacing 70% or above of natural raw materials, and the low-cost solid-waste-based sulphoaluminate cement is obtained; for example, expensive alumina, natural gypsum and the like, the cost of the raw materials can be directly reduced by more than 40%. Wherein the red mud is used as the waste residue of the aluminum oxide industry, the original treatment cost is very high, and the red mud is converted into an effective aluminum source nowadays, so that negative-cost raw material utilization is realized, and the waste residue treatment cost is also saved; the desulfurized gypsum is used as a power plant waste material to completely replace natural gypsum, so that the sulfur source cost is reduced by 60%. Through comprehensive calculation, the production cost of the clinker is reduced by 30-35% compared with that of the traditional sulphoaluminate cement.

The invention relates to the technical field of cement production equipment, in particular to a grading rotor speed regulation and control method and system based on a uniform flow field, which has the advantages of high dynamic adaptability, high accuracy, simplicity and convenience in operation, high predictability and high expandability by introducing the grading rotor speed regulation and control method based on the uniform flow field. The energy consumption and the maintenance cost are reduced, and the working efficiency of cement production grinding operation and the quality of cement products are improved; the method comprises the following steps: acquiring target granularity of grinding operation and cement material granularity distribution data; dividing the cement material particle size distribution data based on the target particle size to obtain cement material grading characteristic information, the cement material grading characteristic information including the target particle size, a target particle size mass ratio, a non-target particle size and a non-target particle size mass ratio; obtaining characteristic information of the graded rotor; and carrying out data fusion on the classification rotor characteristic information and the cement material classification characteristic information.

The utility model relates to the technical field of cement production, and discloses a cement grinding device for cement production, which comprises a fixed plate, the left end of the top of the fixed plate is fixedly connected with a base plate, the top of the base plate is fixedly connected with a motor, and the output end of the motor is fixedly connected with a first gear. The front end of the surface of the first gear is in meshed connection with a second gear, the inner diameter of the second gear is fixedly connected with a grinding tank, the right end of the top of the fixing plate is fixedly connected with a first supporting plate, the top of the first supporting plate is fixedly connected with a first supporting plate, and the top of the first supporting plate is fixedly connected with a weighing sensor. The top of the weighing sensor is fixedly connected with a material box, and the left end of the outer wall of the material box is fixedly connected with a U-shaped plate. According to the utility model, materials are placed in the material box through the material box, the weighing sensor, the air cylinder, the baffle and the transfer bin, then the weighing sensor weighs the materials, and the air cylinder is started to drive the baffle to move upwards.

The invention discloses a system and method for producing low-carbon cement through photovoltaic power generation hydrogen production. The system comprises a photovoltaic power generation system, a water electrolysis hydrogen production system, a raw material grinding system, a rotary kiln calcination system, a cement grinding system and a carbon resource utilization device. The photovoltaic system provides a clean power supply for the electrolysis device, and a solid oxide electrolytic tank is adopted to efficiently prepare hydrogen at high temperature; hydrogen is input into the rotary kiln through a multi-point injection and oxygen combustion-supporting structure to serve as unique fuel, and zero carbon emission in the cement calcination process is achieved; carbon dioxide in tail gas of the system is purified and then synthesized into methanol together with hydrogen, and an energy-carbon cycle closed-loop path is constructed; linkage optimization of photovoltaic output, electrolytic load, calcination heat intensity and carbon conversion efficiency is realized through a multi-stage waste heat recovery and intelligent control system; the method has the remarkable advantages in the aspects of improving the energy utilization efficiency, reducing carbon emission and promoting resource collaboration and intelligent control, and is suitable for construction of a novel green cement industrial platform.

The invention discloses a steel slag cement grinding aid and a preparation method and application thereof, and belongs to the technical field of concrete admixtures, the steel slag cement grinding aid comprises the following raw materials by mass: 80-90% of steel slag, 4-6% of an acid solution and 6-14% of magnesium aluminum silicate waste residue. The preparation method comprises the following steps: crushing the steel slag, and mixing and stirring the crushed steel slag, the acid solution and the magnesium aluminum silicate waste residue to obtain the steel slag cement grinding aid. The steel slag cement grinding aid prepared by the method provided by the invention is low in cost, non-toxic and non-corrosive, improves the grinding effect of a cement product, provides a way for solving the technical problem for waste slag and steel slag discharged by iron and steel enterprises, and has the effects of saving energy, reducing emission, reducing carbon emission, protecting the environment and improving the economic benefit. And moreover, the preparation method is advanced and is widely suitable for being used in cement enterprises.

The utility model relates to the technical field of cement processing, in particular to an energy-saving cement grinding device which comprises a shell, supporting legs, an upper grinding disc and a lower grinding disc, an inner plate is fixedly connected to the inner wall of the shell, a motor is fixedly installed at the top of the inner plate, a bevel gear support is arranged at the output end of the motor, and the bevel gear support is fixedly connected with the supporting legs. A bevel gear set is rotationally connected into the bevel gear support, a first connecting shaft and a second connecting shaft are fixedly connected to the bottom of the second bevel gear and the bottom of the third bevel gear correspondingly, and a lower grinding disc is fixedly connected to the end, away from the second bevel gear, of the first connecting shaft. According to the cement grinding device, coaxial and opposite-direction rotation of the upper grinding disc and the lower grinding disc can be achieved through the arranged bevel gear set, energy is saved, cement grinding is more sufficient, and the grinding efficiency is improved. And through the arranged scraping plate, it can be guaranteed that cement enters a grinding area from holes formed in the upper grinding disc.

The utility model discloses an adjustable cement grinding device in the technical field of cement grinding, which comprises a box body, a grinding plate is arranged in the box body, the lower end of the box body is fixedly connected with a fixing plate, and the grinding plate is fixedly connected with the fixing plate; a sliding rod is movably connected to the fixing plate, sliding frames are movably connected to the two ends of the sliding rod, a connecting plate is fixedly connected to each sliding frame, a driving assembly is fixedly connected to the upper end of each connecting plate, a mounting block is movably connected to the driving assembly, and the mounting block is fixedly connected to the box body. The driving assembly can drive the rolling plate to descend according to actual use, so that the grinding fineness of the cement powder is adjusted; and through different rotating angles of a driving block, a driving groove enables a sliding rod to be located at different heights, cement powder is ground to different fine degrees, and the effect that the particle size can be adjusted when the cement powder is ground is achieved.

The utility model discloses environment-friendly low-alkali cement grinding aid stirring equipment which comprises a stirring machine shell, an inner cavity is fixedly connected in the stirring machine shell, the top end of the inner cavity is in threaded connection with a first rotating shaft, a plurality of push type paddles are fixedly connected to the first rotating shaft in the vertical direction, and the first rotating shaft is in threaded connection with a second rotating shaft in the vertical direction. The top surface of the stirrer shell is fixedly connected with a motor I, and the output end of the motor I is fixedly connected with the rotating shaft I; a second rotating shaft is in threaded connection with the top end of the stirrer shell, a plurality of turbo type paddles are fixedly connected to the second rotating shaft in the vertical direction, a second motor is fixedly connected to the top face of the stirrer shell, and the output end of the second motor is fixedly connected with the second rotating shaft; liquid components are mixed with low shear force in the pre-stirring stage of the push-type paddle, the scrapers synchronously remove attachments on the wall of the cavity, and the turbo-type paddle rapidly crushes solid particles through high shear force and promotes uniform fusion of materials, so that the reaction activity of the grinding aid and the stability of a finished product are remarkably improved.

The utility model relates to the technical field of cement processing, in particular to a cement grinding aid adding and adjusting assembly which comprises a box body, a hydraulic cylinder, a water tank and a mounting box, the mounting box is arranged on the outer wall of one side of the box body, the water tank is fixed in the mounting box, the hydraulic cylinder is arranged on one side of the water tank, a buffering groove is formed in the upper end of the hydraulic cylinder, and the buffering groove is communicated with the water tank. A piston is movably installed in the buffer tank, a water pump is arranged between the hydraulic cylinder and the water tank, and a wagon balance is arranged at the lower end of the box body. According to the cement grinding aid adding device, the constant-proportion variable-quantity adding effect of a cement grinding aid is achieved through cooperation of the structures, and the problems that an existing cement grinding aid adding device for a cement grinding mill lacks the self-adaptive effect of adding a proper amount of the cement grinding aid, so that the amount of the added grinding aid cannot reach the proper amount; the cement stirring effect is easily reduced; and resources are wasted.

The utility model discloses a switchable cement grinding device, and relates to the technical field of cement grinding. The switchable cement grinding device comprises a roller press, mounting plates are fixedly connected to the front side and the rear side of the position of a discharging opening of the roller press, a first conveying belt is fixedly connected to the positions, located at the lower end of the discharging opening of the roller press, of the inner sides of the mounting plates, and an adjusting conveying belt is arranged at the lower end of the right side of the first conveying belt; the adjusting conveying belt is rotationally connected with the interior of the mounting plate, an adjusting motor is fixedly connected to the front end of the rotating position of the adjusting conveying belt and the mounting plate, a second conveying belt is arranged at the lower end of the right side of the adjusting conveying belt, and a ball mill is arranged on the right side of the second conveying belt; and the right side of the second conveying belt communicates with a feeding port of the ball mill, a third conveying belt is arranged at the lower end of the adjusting conveying belt, a V-shaped airflow classifier is arranged on the front side of the third conveying belt, and a control cabinet is installed at the front end of the roller press.

The present invention discloses an intelligent control method for particle grading in cement grinding, which relates to the field of cement grinding control technology, including: S1: real-time acquisition of grinding system operating parameters, including mill current, powder selector speed, feed rate, grinding sound signal, and online particle size detection data; S2: calculation of core characteristic parameters based on the operating parameters, including effective crushing work index, dynamic fine powder retention rate, and material filling state index in the mill; S3: inputting the core characteristic parameters into a grading prediction model and outputting a predicted particle size distribution; S4: generating an adjustment instruction through a hierarchical control strategy based on the predicted particle size distribution; S5: outputting the adjustment instruction to an actuator. By real-time acquisition and analysis of grinding system operating parameters, combined with the core characteristic parameters, the particle size distribution is accurately predicted, and closed-loop intelligent control is achieved, thereby improving grinding efficiency, stability, and product quality, while optimizing control accuracy.

The invention relates to the technical field of cement production, and discloses a production method for improving the cement grinding efficiency by synergistically doping mineral powder. Through the arrangement of the middle material mixing device, primarily-ground powder ground by the grinding equipment and mineral powder can be mixed, then the mixed powder is fed into the efficient powder concentrator for winnowing, the mineral powder can reduce the temperature of the primarily-ground powder on one hand and can assist grinding of coarse powder on the other hand, and the cooling and grinding aiding effects form a cooperation, so that the grinding efficiency is improved, and the grinding efficiency is improved. And the components jointly act on a closed-loop circulation system. The temperature and the viscosity of the re-ground coarse material are reduced, and the grinding-aid medium is introduced, so that the grinding environment of the ball mill is fundamentally improved, and energy can be more effectively used for material crushing instead of heat production and invalid friction, thereby obviously improving the machine-hour yield of a system under the same energy consumption, or effectively reducing the power consumption of a unit product under the same yield.

The utility model discloses a cement ore grinding powder uniform external mixing device which comprises an external mixing assembly, a rotating assembly, a cement mixing machine and a stirring assembly, and the external mixing assembly comprises a storage bin and a conveying pipe arranged at the bottom of the storage bin. The rotating assembly comprises a support arranged at the bottom of the storage bin, a rotating motor arranged on the inner side of the support, a rotating wheel arranged at the output end of the rotating motor and a discharging pipe connected with a rotating wheel belt, and the cement mixing machine is arranged under the storage bin. The stirring assembly comprises a speed reducer arranged at the top of the cement mixer, a driving motor arranged at the top of the speed reducer, a stirring shaft arranged at the output end of the driving motor, a baffle ring inserted outside the stirring shaft and a second fastening knob in threaded connection with the baffle ring. According to the utility model, the arranged rotating component can reciprocate so as to uniformly mix mineral powder, and the arranged baffle ring can block the falling mineral powder so as to disperse the mineral powder, so that the mixing efficiency is improved.

The application belongs to the field of ball mills, and particularly relates to a cement grinding mill system and a ball matching method. The cement grinding mill system comprises a control module, the control module comprises a device control unit, an instruction sending unit, a model construction unit and an information processing unit, the control module is used for controlling the device running state, sending control instructions, establishing a mathematical model for calculation, obtaining required friction coefficients and other related parameters, and guiding the ball mill ball matching of a cement enterprise in actual production. The ball matching method can significantly improve the grinding efficiency of the ball mill, make the operation of the ball mill more stable, reduce unnecessary energy consumption, reduce the wear of the lining plate in the ball mill, reduce the frequency of maintenance and replacement, realize the automatic operation and optimized control of the cement ball mill by adopting intelligent control technology, and improve the production efficiency.

The invention provides a digital twin modeling method for a cement grinding process, which comprises the following steps of: simplifying cement grinding whole-process equipment, and setting a motion boundary of the equipment; and then connection among equipment is realized through a pipe section, a chute and a scraper, so that a virtual model of the whole process is established. Simulating a particle movement process and a crushing process based on a particle simulation technology; the method comprises the following steps: acquiring flow field information by coupling a computational fluid mechanics means and a particle simulation technology, solving by a computer to obtain a qualified product, and finally realizing result data visualization of the whole process of cement particle ore grinding. According to the digital twinborn modeling method, through full-process simulation, the problem that full-process collaborative optimization cannot be achieved for single module calculation in the past is solved, and meanwhile, based on comprehensive application of the particle simulation technology, the problems that simulation precision is poor and time is short in the past are solved.

The utility model discloses cement grinding equipment for cement production, and belongs to the field of cement production. The cement grinding equipment for cement production comprises a second fixing frame, a storage box is arranged at the upper end of one side of the second fixing frame, a first conveying pipe is transversely arranged at the lower end of the storage box and connected with the storage box in a sealed mode, and a first filter screen is arranged on one side of the lower end of the interior of the first conveying pipe. According to the cement grinding device, the problem that in an existing cement grinding device, large-particle cement needs to be repeatedly conveyed through a spiral blade, so that the spiral blade bears large workload in the operation process of the whole device is solved, and through pushing of the first spiral rod and filtering of the first filter screen, the large-particle cement can be conveniently conveyed through the spiral blade. Preliminary distribution of particle materials can be achieved, particles of all sizes are prevented from being smashed by the same smashing roller, targeted smashing is carried out, and the situation that the particles need to be frequently conveyed by a second screw rod is avoided.

The invention discloses a preparation method of a spherical carbon nano polymer steel slag cement grinding aid, which comprises the following steps: (1) mixing and dissolving a polycarboxybenzene compound, an amino alcohol compound and a condensing agent in an organic solvent to prepare a solution A, stirring and activating at a first temperature, then keeping stirring and heating to a reaction temperature, and reacting at a certain pressure to obtain a reaction solution B; after the reaction is finished, centrifuging and taking supernate, and filtering to obtain a polymer solution; (2) mixing the obtained polymer solution with hydrochloric acid to prepare a solution B, placing the solution B in an ice salt bath, dropwise adding a nitrite solution, and stirring for a first reaction; and adding thiocyanate and a cuprous salt catalyst, removing the ice salt bath, heating, carrying out a second reaction, and cooling to room temperature after the reaction is finished to obtain the spherical carbon nano polymer steel slag cement grinding aid. The grinding aid can improve the grinding efficiency of the steel slag cement, the performance of the steel slag cement is improved, and the process is simple and efficient.

The application discloses a kind of hydrogen production low-carbon cement system and method using photovoltaic power generation, the system includes photovoltaic power generation system, electrolytic water hydrogen production system, raw material grinding system, rotary kiln calcination system, cement grinding system and carbon resource utilization device;Photovoltaic system provides clean power for electrolytic device, and hydrogen is efficiently prepared at high temperature using solid oxide electrolytic cell;Hydrogen is input into rotary kiln as the only fuel by multi-point injection and oxygen combustion-supporting structure, realizing zero carbon emission of cement calcination process;Carbon dioxide in system tail gas is synthesized into methanol after purification together with hydrogen, and energy-carbon cycle closed loop path is constructed;Through multistage waste heat recovery and intelligent control system, the linkage optimization of photovoltaic output, electrolysis load, calcination heat intensity and carbon conversion efficiency is realized;The application has significant advantages in improving energy utilization efficiency, reducing carbon emission, promoting resource coordination and intelligent control, and is suitable for the construction of new green cement industrial platform.

The utility model discloses a sampling device for cement grinding aid monitoring, which comprises a cylindrical box body, a collecting component is arranged on the lower wall surface of the cylindrical box body, a liquid circulating component is arranged in the cylindrical box body, a liquid guiding component is arranged in the liquid circulating component, and during sampling, a round handle is screwed at the moment, and the liquid guiding component is arranged in the liquid circulating component. The first rod body drives the second ball body to rotate in the first ball body, so that the arc-shaped groove of the second ball body is communicated with the second pipe body and the first pipe body, a grinding aid circulates in the bottle body, and the sampling operation at any time and at any time is completed, and at the moment, the bottle body can be protected through the sliding door; and the first box body and the sliding door can be additionally provided with lock heads to prevent the touch of outsiders, so that the simple sampling operation of the grinding aid at any time and any place is realized.

The application provides a method and system for preparing low-carbon cement by using coal gasification ash in a graded manner, and the method comprises the following steps: dividing the coal gasification ash into carbon-rich ash, medium-carbon ash and carbon-poor ash according to the carbon content; feeding the carbon-rich ash and raw coal into a coal powder preparation workshop to prepare a first mixture as a clinker calcination fuel; feeding the medium-carbon ash into a raw material preparation workshop after metering to be ground and dried together with other raw material components; preparing clinker by decomposing and calcining the second mixture after mixing uniformly and cooling; feeding the mixture of the clinker and other cement components and the carbon-poor ash into a cement preparation workshop to prepare finished cement. The carbon content of the coal gasification ash is divided in a graded manner to obtain coal gasification ash materials with different characteristics, and the cement production process characteristics are combined to be used in three process sections of raw material grinding, clinker calcination and cement grinding, so that the coal gasification ash is used in a large amount and in a large scale in the building material resources, and the carbon emission in the cement clinker production process is reduced.

The invention discloses a glycerol residue recycling process and a glycerol residue recycling treatment system, glycerol residue is diluted and then filtered to remove impurities, calcium oxide and sodium metaaluminate are added for reaction to generate Friedel's salt for recycling, the pH of filtrate is adjusted, sodium carbonate is added to generate calcium carbonate for recycling, and the glycerol residue is recycled. The method comprises the following steps: carrying out fine separation on glycerol and chlorine salt in glycerol residues, then carrying out microfiltration to remove glue, carrying out ultrafiltration separation on high-polymerization-degree polyglycerol for recycling, and carrying out nanofiltration separation on low-polymerization-degree polyglycerol for recycling, so as to finally obtain a glycerol solution for recycling. Inorganic salt is prepared into a heavy metal capturing agent, the heavy metal capturing agent, refined calcium carbonate and glycerol are prepared into a water treatment carbon source, low-polymerization-degree polyglycerol is prepared into refined polyglycerol, high-polymerization-degree polyglycerol is prepared into a liquid cement grinding aid, fine recycling of resources is achieved, flammable and explosive solvents are not used in the treatment process, and safety is high.

The invention discloses quaternary mixed cement containing silica fume and a preparation method of the quaternary mixed cement, and relates to the technical field of building materials. 10%-18% of fly ash; 3%-8% of silica fume; through the synergistic effect of quaternary raw materials including the Portland cement clinker, the fly ash, the silica fume and the slag powder and in combination with precise raw material pretreatment, ingredient mixing, cement grinding and curing forming processes, the problems that traditional Portland cement is limited in later strength increase, insufficient in thermal stability and the like are effectively solved; the 3d compressive strength of the finished cement is larger than or equal to 26.0 MPa, the 28d compressive strength of the finished cement is larger than or equal to 50.0 MPa, the strength is stable, the performance is excellent, meanwhile, the silica fume is evenly dispersed, the pozzolanic effect of the silica fume is fully exerted, the thermal stability of a generated hydration product is superior to that of traditional cement, and the cement is suitable for high-strength and high-temperature-resistant engineering.

The utility model relates to the technical field of dust collection devices, in particular to an efficient and energy-saving dust collection device of a cement mill roller press, which comprises a base body, a motor base is arranged on the upper surface of the base body, a motor body is arranged on the upper surface of the motor base, and a shell body is mounted on the outer surface of the motor base. A pipeline connecting piece is arranged on the outer surface of the shell body; and the outlet reducer pipe is mounted on the outer surface of the pipeline connecting piece. According to the utility model, the area of the air inlet of the cyclone dust collector is designed to be smaller than the section of the cylinder surface, so that the tangential speed of the inlet airflow of the dust collector is increased, the dust collecting efficiency is improved, ultrafine powder ground by the roller press is collected by the dust collector, the collected ultrafine powder is conveyed into the finished product air conveying chute through the air conveying chute, and the finished product is conveyed into the finished product air conveying chute through the finished product air conveying chute. And the superfine materials are prevented from circulating in a ball mill system, so that the operation efficiency of the grinding system is improved.

The utility model relates to the technical field of cement grinding and processing, and discloses a cement grinding device for cement production, which is uniform in grinding and comprises a crushing bin, the right end of the crushing bin is fixedly connected with a first motor, and the driving end of the first motor is fixedly connected with a first crushing wheel. The first crushing wheel is connected with a second crushing wheel through a transmission gear set, the bottom end of the crushing bin is fixedly connected with a grinding bin and penetrates through the grinding bin, the right end of the grinding bin is fixedly connected with a second motor, the driving end of the second motor is connected with a transmission rod through a grinding assembly, and a discharging assembly at the bottom end of the grinding bin is connected with a supporting table. According to the cement grinding device, cement can be fully ground, uniform and fine grinding can ensure reasonable particle size distribution of the cement, the strength and stability of the cement can be improved, the ground cement can be taken out conveniently, the effect of shortening the loading and unloading time is achieved, and therefore the production efficiency is improved, and the production task can be completed more quickly.

The utility model relates to the technical field of cement production equipment, and provides a surge bin stepped scraper-trough conveyer for a roller press of a cement grinding mill, which comprises a plurality of conveying pipes connected in sequence, and the inner diameters of all the conveying pipes are sequentially reduced from top to bottom; an inclined face is arranged on the side, close to the lower-end conveying pipe, of the conveying pipe and used for guiding materials into the lower-end conveying pipe. The surge bin stepped scraper-trough conveyer for the cement grinding mill roller press aims at reducing the situation that materials are not evenly distributed when entering a stable retention bin.