5639 results about "Crusher" patented technology

The invention provides a hammer crusher and a crushing method, and relates to the technical field of material crushing, the hammer crusher comprises an intelligent control system, and the intelligent control system comprises a crushing parameter regulation and control analysis module, an energy-saving optimization module and a regulation and control execution module; the crushing parameter regulation and control analysis module analyzes the characteristic information of the to-be-crushed material to obtain crushing parameters; the energy-saving optimization module performs analysis according to historical data and real-time monitoring data of equipment operation to obtain an energy-saving adjustment coefficient; and the regulation and control execution module automatically adjusts the rotating speed of the driving mechanism and the striking force of the breaking hammer by using the adjusted breaking parameters. Material characteristic information is obtained in real time through the material characteristic detection module, adaptive crushing parameters are calculated through the crushing parameter regulation and control analysis module, an energy-saving regulation coefficient obtained through the energy-saving optimization module is combined, and the rotation speed of the driving mechanism and the striking force of the crushing hammer are automatically regulated through the regulation and control execution module; accurate crushing can be carried out according to different material characteristics, and energy consumption is effectively reduced.

The invention provides a dust removal control method for a machine-made sand impact crusher. The dust removal control method comprises the following steps that working condition parameters and dust removal parameters of the crusher are collected in real time; dynamically calculating a target negative pressure value and a dust removal triggering threshold value based on the working condition parameters and the dust removal parameters of the crusher; according to the target negative pressure value, the operation power of an exhaust fan is adjusted, so that the negative pressure strength of the dust removal system is matched with the current crushing working condition corresponding to the working condition parameters of the crusher; when the resistance of the filter bag reaches a dust removal triggering threshold value, starting a dust removal assembly, and adaptively adjusting the dust removal frequency and vibration amplitude of the dust removal assembly according to the dust concentration change rate; the weight of the dust collecting box is monitored in real time, and when the weight of the dust collecting box reaches the weight set upper limit, the automatic dust discharging device is started to convey dust to an external recycling system. According to the method, the target negative pressure value and the ash removal triggering threshold value can be dynamically calculated, so that the dust removal strength is accurately matched with the current crushing load, and the working condition self-adaptive dynamic control is realized, so that the dust removal efficiency and the energy consumption in the production and preparation process are balanced.

The present invention provides a device and method for the resource utilization of urban waste incineration slag, which relates to the technical field of slag waste recycling. The device for the resource utilization of urban waste incineration slag includes an equipment frame and a crusher installed on the equipment frame. It further includes a flow and precipitation component, a water addition component, and a resource recovery component installed on the equipment frame. The crusher transfers the crushed slag to the water addition component. The water addition component is used to add water to the ash slag and make it flow into the flow and precipitation component. After operation and precipitation, it is then discharged onto the resource recovery component. It also includes multiple groups of stirring components for stirring the slurry in the flow and precipitation component. The device and method for the resource utilization of urban waste incineration slag, by setting the flow and precipitation component, can obtain precipitation within the operation time compared with a fixed sedimentation tank, and can be flipped and dumped, and flushed with high-pressure water, making it easier to clean the internal slurry and preventing blockage.

The invention discloses a slurry shield short screw and rear crusher collaborative deslagging working parameter optimization method based on CFD-DEM coupling modeling, and relates to the technical field of civil engineering and tunnel engineering.The slurry shield short screw and rear crusher collaborative deslagging working parameter optimization method comprises the steps that rheological behaviors of slurry are simulated through a rheological model; establishing a three-dimensional calculation model, and optimizing short spiral rotating speed setting; based on a coupling technology, establishing a crushing cabin three-dimensional coupling model; performing coupling simulation; the working parameters of the crusher are optimized; obtaining the crushing mass per second of rock slag particles under each group of simulation and the mass flow rate of slag discharged from an outlet of the crushing cabin; and optimizing each decision variable by using a multi-objective particle swarm optimization algorithm, and determining an optimal solution by using an approximation ideal solution. The method can quickly and accurately calculate the optimal combination of the working parameters of the short screw and the working parameters of the crusher at different shield tunneling speeds, alleviates the difficult problem of stagnant discharge of the actual engineering muddy water cabin, and has the advantages of low cost, wide applicability, high practicability and high popularization value.

The invention discloses garbage power generation incineration slag sorting treatment equipment, and relates to the technical field of garbage crushing and sorting, the garbage power generation incineration slag sorting treatment equipment comprises a sorting frame, a feeding hopper is mounted on the sorting frame, a multifunctional crushing chamber is mounted in the middle of one side, away from the feeding hopper, of the sorting frame, and an atomization pouring chamber is arranged below the multifunctional crushing chamber; a sorting chamber is arranged on one side, far away from the multifunctional crushing chamber, of the atomization material pouring chamber; a uniform material distributing mechanism, a layered crushing mechanism and a sorting mechanism are further included; according to the scheme, the impact crushing layer and the rolling crushing layer which are stacked up and down are arranged, brittle slag blocks are rapidly crushed through the high-speed crushing hammer under the impact and shearing effects, metal is prevented from being repeatedly extruded and deformed, meanwhile, metal blocks are gently rolled through low-speed extrusion, the physical form integrity of the metal blocks is kept, and the service life of the metal blocks is prolonged. And compared with a traditional jaw crusher which mixes and crushes the metal and the slag blocks together, the jaw crusher has the advantage that the deformation rate of the iron blocks is reduced.

The utility model relates to the field of solid waste treatment, and discloses a frame mobile crushing station. It includes a frame, a crushing group connected to the frame, a linear vibrating screen, and a material discharge conveyor belt. The crushing group includes a first crusher and a second crusher. The first crusher is located above the linear vibrating screen. One side of the linear vibrating screen is hinged to the frame, and the other side is hinged to a hydraulic cylinder, which is hinged to the frame. The second crusher is suitable for crushing materials with large particle sizes that roll down from the linear vibrating screen. The material discharge conveyor belt is located below the linear vibrating screen and the second crusher to receive the materials. The linear vibrating screen is provided with a rotating shaft and a driving motor. A knocking assembly is provided on the rotating shaft. The knocking assembly rotates synchronously with the rotating shaft and is suitable for knocking the screen. The knocking assembly of the utility model will intermittently knock the screen as the rotating shaft rotates to knock down the materials stuck on the screen hole; the linear vibrating screen will also swing to shake the materials, thereby improving the screening effect.

The invention relates to the technical field of pipeline solid waste material treatment, in particular to a pipeline solid waste grading crusher and a material recycling method thereof.The pipeline solid waste grading crusher comprises an outer shell with the bottom face provided with a supporting base, a first feeding frame and a second feeding frame, and the first feeding frame and the second feeding frame are sequentially installed above the outer shell from front to back; and a first-stage crushing assembly and a second-stage crushing assembly are sequentially installed in the outer shell from top to bottom, a moving ring is connected to the interior of the left side of a second feeding frame through a connecting control mechanism, a cross frame body is installed in the moving ring, and cutter assemblies used for preliminary slitting are symmetrically fixed to the right side face of the cross frame body. According to the pipeline solid waste grading crusher and the material recycling method thereof, aged or damaged hard plastic pipelines can be conveniently and preliminarily cleaned, and the situation that the crushing efficiency and quality are affected by impurities such as sludge is avoided, so that the crushing and recycling efficiency and quality of the plastic pipelines can be improved, and plastic particles obtained after crushing are conveniently recycled and reused in the later period.

The invention relates to an expanding drill device for expanding a pilot bore produced from a starting point to a target point in the ground along a specified drilling line by moving the expanding drill device (10) along the specified drilling line in order to produce a bore in the ground or in rock for introducing a pipeline or a supporting system into the expanded bore, comprising: a housing (11); a drill head (14) that has a cutting wheel (15) which is arranged on the drill side (21) of the expanding drill device (10) so as to be rotatably mounted and driven about a rotational axis and relative to the housing and on which at least one drill tool (16) for loosening the ground or the rock is arranged; and a drill-side connection for producing a connection to a pipe section located in the pilot bore on the drill side, wherein the drill side (21) centrally has at least one receiving chamber (24) for the loosened ground or the loosened rock, said receiving chamber being connected to a material conveyor device of the expanding drill device (10) for the loosened ground or the loosened rock via at least one removal opening (30); the drill side (21) has at least one drill chamber (38) that is equipped with the cutting wheel (15), which is arranged about the receiving chamber (24); the cutting wheel (15) has an annular design and is rotatably arranged about the central receiving chamber (24); and the receiving chamber (24) is connected to the drill chamber (38) via at least one conveyor opening (41) so that the loosened ground or the loosened rock can be conveyed into the receiving chamber (24) through the conveyor opening (41). According to the invention, at least one crusher (46) is provided in the drill chamber (38); the crusher (46) has crusher strips (49) on the rotatable cutting wheel (15) which move together with the cutting wheel (15) and crusher strips (47) on the receiving chamber (24) side facing the drill chamber (38) which are rigidly arranged together with the receiving chamber (24); and the crusher strips (47, 49) are arranged relative to one another such that a crusher gap (50) is produced between the crusher strips.

The invention relates to the technical field of constructional engineering, and discloses a sandy gravel and bedrock area pile foundation drilling process which comprises the following steps: drilling data acquisition: acquiring drilling parameters of drilling pressure, drilling speed, drill bit temperature and vibration data in real time; the invention further provides a sandy gravel and bedrock area pile foundation drilling control system, and the system comprises a drilling data acquisition module which is used for acquiring data of drilling pressure, drilling speed, drill bit temperature and vibration parameters in real time; the invention further provides a drilling machine for drilling the pile foundation in the sandy gravel and bedrock area, and the drilling machine comprises a drill bit module used for striking and cutting a rock stratum and cooperating with a continuous crushing mechanism to conduct efficient drilling. By introducing the intelligent real-time feedback control system and the particle swarm optimization algorithm, automatic adjustment of the drilling pressure and the drilling speed is achieved, the drilling efficiency is improved, equipment abrasion is reduced, energy consumption is reduced, and the method effectively adapts to complex stratum changes.

The invention relates to the technical field of crushers, and discloses a crusher for bulk materials after sodium sulfide calcination and a crushing process thereof.The crusher mainly comprises a dust removal mechanism, the dust removal mechanism is fixedly arranged on the right side of the bottom end of a working shell and used for cleaning dust in the working shell, and the dust removal mechanism comprises a dust storage box; a moving assembly is arranged in the dust storage box and used for cleaning the first filter screen and the second filter screen. When the moving assembly works, the moving piston drives the moving shaft to work, so that the moving part moves in the dust storage box, the second filter screen is effectively rubbed, the first filter screen is impacted, dust on the first filter screen and the second filter screen is fully cleaned, and the dust removal mechanism is effectively and timely self-cleaned; and resistance increase and suction reduction caused by dust accumulation are prevented, so that the dust removal efficiency is improved, the working shell does not need to be shut down to treat dust, and the working efficiency is improved.

The utility model discloses a horizontal crusher, which relates to the technical field of processing equipment and comprises a base, vibration motors are symmetrically mounted at the bottom end of the base, a collecting box is mounted at one end of the base, a shell is fixedly connected to the upper end of the base, a feed hopper is mounted at the upper end of the shell, vibration plates are symmetrically mounted at the upper end of the interior of the shell, and a feeding hopper is mounted at the lower end of the shell. The opposite ends of the vibrating plates are provided with vibrating strips, the bottom ends of the vibrating plates are provided with a U-shaped screening cover and a sliding mechanism, one end of the shell is provided with a driving motor, the output end of the driving motor is rotationally connected with a rotating rod through a rotating shaft, and the outer side of the rotating rod is symmetrically provided with crushing hammers; and elastic lock mechanisms are symmetrically installed on the outer sides of the rotating rods, and a dust removal mechanism is installed at one end of the shell. Due to the adoption of the structure, the crusher is convenient for a user to use, and the crushing effect and efficiency are improved.

The invention belongs to the technical field of magnetite beneficiation, and particularly relates to a method for removing iron impurities in minerals through manual and automatic three-stage combination in magnet beneficiation, a three-stage iron removal system is arranged, the iron impurities and ferromanganese are detected step by step according to the size of the iron impurities and the property of magnets or ferromanganese, and a detected magnetic field is cooperatively calibrated step by step; and iron impurities in the ores are removed in a classified manner. Compared with the prior art, the system has the beneficial effects that a manual and automatic three-stage combined iron removal solution is adopted, large magnetic iron impurities, small magnetic iron impurities and ferromanganese impurities in the process are efficiently classified and removed in a targeted manner, damage of the iron impurities to equipment such as an ore crusher and a belt conveyor is avoided, the operation efficiency of the process is improved, and the production cost is reduced. And the problem of removing iron impurities in magnet beneficiation is solved.

The utility model discloses a hammer crusher, which belongs to the technical field of material crushing and specifically comprises a shell, a hammer component and a sieve plate, the hammer component and the sieve plate are arranged in the shell, a dredging component is arranged below the sieve plate and comprises dredging rods and a driving mechanism, the number of the dredging rods corresponds to that of holes of the sieve plate, and the driving mechanism controls the dredging rods to be inserted into or separated from the holes of the sieve plate. The dredging assembly is arranged in the machine shell, when the holes of the sieve plate are blocked and in the shutdown state, the driving mechanism controls the dredging rod to eject broken stones in the holes of the sieve plate out, blockage in the holes of the sieve plate can be cleared away without taking out the sieve plate when the sieve plate is blocked, time and labor are saved, and the cleaning efficiency is improved. And the cleaning efficiency is effectively improved.

The invention belongs to the technical field of coal-based solid waste utilization, and particularly relates to a crushing and mixing device for coal-based solid waste filling, which comprises a feeding hopper, a crushing and mixing device, a crushing and mixing device, a crushing and mixing device and a crushing and mixing device, the top end of the crushing box communicates with the bottom end of the feeding hopper; a crushing mechanism and a screening mechanism are sequentially arranged in the crushing box from top to bottom; the upper portion of the mixing box communicates with a discharging port of the crushing box, a third motor is installed in the middle of the top end of the mixing box, the output end of the third motor penetrates through the top wall of the crushing box and is connected with a first stirring assembly, a second stirring assembly is arranged on the inner bottom wall of the crushing box, and the tail end of the first stirring assembly extends into the second stirring assembly. The second stirring assembly is in transmission fit with the third motor. The discharging rhythm is accurately regulated and controlled through the material distributing mechanism, the phenomenon of material accumulation or idle running of the crushing mechanism is avoided, differential rotation is adopted by the double stirring assemblies, a composite flow field is formed, and the stirring uniformity is further improved.

The present invention belongs to the technical field of construction engineering, and particularly relates to an intelligent fluid soil solidifying agent mixing and loading production line and method, including: a material transportation part, located on the periphery of the box body part, including a feeding unit near the front and rear access doors and a discharging unit near the front access door; a material storage and use part, installed in the upper inner area of the box body part, including a material transportation and cutting unit, a classified material storage unit, and a weighing and feeding unit that are sequentially located under the lower surface of the inner ceiling of the box body from top to bottom; a production part, installed in the lower inner area of the box body part, including a U-shaped screw conveyor, a toothed roll crusher, a high-frequency vibrating screen, a first low-pressure continuous conveyor pump, a double-motion mixer, a second low-pressure continuous conveyor pump, and a valve-opening full-automatic packaging machine that are sequentially located in the lower area of the box body from back to front. The present invention can realize the automation of raw material transportation, storage, processing, production, and bagging, and effectively reduce the production and use cost of the solidifying agent at the construction site.

The invention relates to the field of anti-blocking control methods for crushers, in particular to an intelligent anti-blocking feeding control method and system for a crusher, and the method comprises the steps: initializing rated working parameters of the crusher; the current of a main motor, the speed of a feeding belt and the material level of a crushing cavity are collected in real time; the current change rate is calculated according to the current of the main motor, whether the current change rate is larger than a threshold value or not is judged, if yes, preventive speed reduction is executed, and meanwhile the size of a discharging opening is enlarged; if not, entering the next step; calculating a dynamic control quantity according to the weight coefficient, the current of the main motor, the speed of the feeding belt and the material level of the crushing cavity; controlling the crusher according to the dynamic control quantity; the system comprises a detection module, a control decision module and an execution module. The material blocking risk can be reduced in the material blocking germination period, and the anti-blocking effect is improved.

The utility model relates to the technical field of ore extraction, in particular to an ore extraction device which comprises a base of a whole device carrier, a crushing mechanism used for crushing ore is arranged on the base, a flotation tank used for separating metal substances is arranged on the base, and the base is further provided with a material distributing assembly used for expanding the discharging range. The crushing mechanism comprises a ring body rotationally installed on the base, a grinding roller rotating in the direction opposite to the ring body is further installed on the base, the diameter of the grinding roller is gradually increased from top to bottom, crushing teeth are fixedly connected to the inner ring of the ring body and the outer ring of the grinding roller, and the ring body is arranged outside the grinding roller in a sleeving mode. The crushing mechanism is arranged, the grinding roller and the ring body rotate in opposite directions, ore can be crushed through the crushing teeth, the grinding roller is in the shape of a circular truncated cone, the ore can be crushed step by step, raw materials can be decomposed into small particles, the mechanical stone crushing process can be conducted more easily and efficiently, and the crushing efficiency is improved. And the overall crushing efficiency is improved.

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

The invention discloses a building engineering waste treatment device with a classified storage function, and relates to the field of waste recycling, the building engineering waste treatment device comprises a treatment box and a material adding opening formed in the upper portion of the treatment box, a buoyancy separation chamber is arranged in the treatment box, and the buoyancy separation chamber and the material adding opening communicate with each other; and a floating collection mechanism is arranged above the buoyancy separation chamber. According to the building engineering waste treatment device with the classified storage function, by means of the ingenious layout of the buoyancy sorting chamber, waste such as wood and plastic is separated from building stone such as concrete, the waste is in a floating state, the waste sinks to the bottom, and then various substances are crushed through the first crushing mechanism and the second crushing mechanism, so that the waste treatment efficiency is improved. The solid waste is destroyed and conveniently recycled, after treatment is completed, materials are classified and stored through different classified storage boxes, the classified storage effect is achieved, useful metal objects in crushed objects can be sorted, and therefore the follow-up recycling process is greatly facilitated.

The utility model relates to a stone crushing device which comprises a stone crusher, and the stone crusher is provided with a stone inlet and a broken stone outlet. A discharging opening is formed in the lower end of the storage bin, the discharging end of the vibration feeding machine is aligned with the stone inlet, the feeding end of the feeding belt is located below the broken stone outlet, the discharging end of the feeding belt is located above the storage bin, the feeding belt is obliquely arranged, and the feeding end of the feeding belt is low, and the discharging end of the feeding belt is high. When the stone crusher is used, stones are put into the vibration feeding machine to be conveyed to the stone inlet of the stone crusher, the stones are crushed into broken stones by the stone crusher and then are output to the feeding belt from the broken stone outlet, the broken stones are conveyed into the storage bin by the feeding belt to be stored, and the broken stones are output through the discharging opening when needing to be used. The first purpose of the stone crushing device is to provide the stone crushing device which can conveniently feed and discharge materials into the bin, and the problem that an existing stone crushing device is strenuous in feeding and discharging is solved.

The utility model discloses a stone screening device for a stone crusher, and relates to the technical field of stone crushers. The device comprises a rack, a screening box is arranged above the rack; the opposite side walls of the screening box are connected with the rack through springs correspondingly. A plurality of vibration motors are connected to the bottom of the screening box side by side. A pair of rotating shafts is rotationally connected between the opposite side walls of the screening box side by side. Sieve plates are radially fixed on the two rotating shafts; a plurality of sieve holes are formed in one surface of each sieve plate side by side; the two rotating shafts are connected through a rotating driving assembly; the rotary driving assembly is used for turning over the two sieve plates by driving the two rotary shafts to rotate. The sieve plate cleaning device is reasonable in structural design and convenient to use, and the cleaning efficiency of broken stones clamped on the sieve plate is effectively improved.

The purpose of this invention is to provide a method for preparing cemented backfill materials based on response surface methodology using composite activating coal gasification slag. This method belongs to the field of mining engineering technology. Based on sorting and removing impurities from the coal gasification slag and drying it, the invention obtains ultrafine powder of the coal gasification slag for preparing the backfill material through ball milling. Then, coal gangue is crushed and screened using a crusher to obtain coarse, medium, and fine aggregates for the backfill material. Finally, cement, ultrafine coal gasification slag powder, coal gangue aggregate, activator, and water are mixed evenly to prepare the cemented backfill material. This invention not only solves the problem of low activity of coal gasification slag volcanic ash but also effectively controls the shortage of cemented backfill materials and high backfilling costs during cemented backfill mining, ensuring sustainable development. Furthermore, it effectively utilizes the widely accumulated coal gasification slag, reducing pollution and large-scale land occupation of the surrounding environment.

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 crushers, and particularly discloses a crusher which comprises a rack, a plurality of sieve plates and a crushing hammer, the sieve plates are distributed at the bottom of the rack in an arc shape, a sieve hole is formed between every two adjacent sieve plates, and a movable plate is elastically and slidably arranged on the left side wall of each sieve hole in the length direction of the crushing hammer; friction teeth are arranged on the opposite faces of the movable plates and the sieve plates so that materials can be crushed when the movable plates move towards the rotating center away from the crushing hammer, a pushing assembly is rotationally arranged on each sieve plate, a movable part is arranged on the front side of each pushing assembly in a front-back sliding mode, and reset pieces are installed between the movable parts and the sieve plates. A driving piece is mounted between the movable part and the rotating center of the breaking hammer, and a connecting piece is mounted between the movable plate and the movable part; materials in the screen holes fall off after being abraded through movement of the movable part, and the materials which do not fall off in the screen holes are removed by the pushing assembly.

The invention relates to the technical field of boron carbide coarse abrasive particle crushing, in particular to a self-adaptive target type airflow crusher for boron carbide coarse abrasive particles, which comprises an air compressor, a Laval nozzle, a feed distributor, a crusher, a target material, a cyclone collector, a dust remover, an image acquisition assembly, an analysis assembly and a regulation and control assembly, the analysis assembly determines the accumulation degree of the coarse-particle boron carbide powder according to the powder distribution image so as to adjust the vibration feeding frequency of the feeding distributor, and determines the coarse-particle ratio and the coarse-particle duration according to the powder particle size image and the coarse-particle threshold value; and the regulation and control assembly adjusts the air pressure of the high-pressure airflow according to the coarseness ratio, the preset first ratio, the coarseness duration time, the preset time threshold value and the target granularity, and adjusts the angle of the target material or the air outlet angle of the Laval nozzle according to the position of the impact area, the ratio of the impact area and the preset second ratio. According to the method, the qualified rate of crushing of the boron carbide coarse abrasive particles is effectively improved.

The invention relates to the technical field of mine beneficiation, and discloses a placer movable type gravity separation system and method, and the placer movable type gravity separation system comprises a movable type bearing base, an impact crusher, a spiral classifier and a plurality of parallel shaking tables; a spiral classifier is matched with an intelligent concentration monitoring system. The intelligent concentration monitoring system is composed of an ore pulp concentration sensor, a flow sensor, a PLC and an electric adjusting valve. The feeding end of each shaking table is connected with the discharging end of the spiral classifier through a flow dividing pipeline, and a flow distributing valve is arranged on the flow dividing pipeline. A damping device and crawler-type moving wheels are integrated at the bottom of the movable bearing base, the whole machine is in communication connection with the equipment through a central control cabinet, and data communication and material conveying closed-loop linkage of the raw material crushing unit, the ore pulp grading and concentration regulation and control unit, the multi-machine parallel gravity separation unit, the movable operation regulation and control unit and the central control unit are achieved. The intelligent control framework has the advantages of being accurate in ore pulp concentration regulation and control, high in treatment capacity and stable and reliable in moving operation.

The invention relates to the technical field of rotary kiln equipment, in particular to an in-furnace crushing rotary kiln and a using method thereof. The in-furnace crushing rotary kiln comprises a rotary kiln body, one end of the rotary kiln body is connected with a feeding device, an air inlet device and a combustor, the feeding device, the air inlet device and the combustor are communicated with an inner cavity of the rotary kiln body, and a crushing mechanism is arranged in the inner cavity of the rotary kiln body. The crushing mechanism comprises a connecting shaft and a plurality of crushing parts, the connecting shaft is arranged in the axial direction of the rotary kiln body and penetrates through an inner cavity of the rotary kiln body, the crushing parts are arranged on the connecting shaft in a segmented mode in the axial direction of the connecting shaft, and the crushing mechanism is connected with a driving mechanism. And the driving mechanism is used for driving the connecting shaft to rotate and driving the crushing piece to rotate around the connecting shaft. According to the rotary kiln, materials flowing in the barrel can be fully crushed and ground, meanwhile, the contact condition of the materials and air is improved, and sufficient incineration of the materials is guaranteed.

The invention relates to an air curtain-negative pressure coupling circulating dust removal system for an open pit coal mine crushing station, and belongs to the technical field of dust prevention and control. Comprising a dust isolation device, a dust falling device and an air curtain dust control device which are arranged on a mine truck coal unloading channel. The dust isolation device comprises a dust blocking curtain arranged at the top of the coal unloading channel and dust blocking plates arranged on the two sides of the dust blocking curtain; the dust falling device comprises a dust remover arranged outside the coal unloading channel, a dust suction hood arranged in the channel and a negative pressure dust suction pipeline; the air curtain dust control device comprises an air supercharger arranged outside the coal unloading channel, air curtain generators arranged on the two sides of the channel and an air compression pipeline. The air outlet of the dust remover is provided with an air supercharger communicated to the compressed air pipeline, and air flow treated by the dust remover is conveyed to the air curtain generator through the compressed air pipeline under the action of the air supercharger to form circulating air flow. The dust removal system solves the problem of serious dust pollution in the production process of the primary crushing station, and dust treatment is carried out by utilizing airflow circulation to prevent dust diffusion from influencing the surrounding environment.

The system is formed by combining and connecting a coarse crusher (1), an ore washing sieve (2), a large dry magnetic separator (3), a wet magnetic separation preselector (4), a fine crusher (5), a dry magnetic separation scavenging machine (6), an aggregate screening machine (7), a preselected concentrate dewatering sieve (8), a preselected tailing dewatering sieve (9), a preselected concentrate concentration magnetic separator (10) and a preselected concentrate filter (11). An ore discharge port of the coarse crusher (1) is connected with a feeding end at the upper part of the ore washing sieve (2), an oversize discharge port of the ore washing sieve (2) is connected with a feeding belt of the large dry magnetic separator (3), and an undersize discharge port of the ore washing sieve (2) is connected with an ore feed port of the wet magnetic preselector (4). Slurry on the surface of high-silt-content raw ore is washed off through screening and ore washing operation, and the ore blocking condition is reduced; dry separation and wet separation processes are combined, a large number of tailings are thrown out in advance, meanwhile, various building material products are produced, and the resource utilization rate is increased.

The utility model relates to a mineral powder production system which comprises a first raw material bin and a second raw material bin, the first raw material bin is connected with a raw material weighing feeder, the discharging end of the raw material weighing feeder is connected with a chute, and the chute is connected with a grinding machine; the second raw material bin is connected with a crusher, the crusher is connected with a powder concentrator, a coarse powder bin and a fine powder bin are arranged at the downstream of the powder concentrator, powder in the fine powder bin is stirred by adding water through a first kneading machine, and superfine powder is obtained after stirring and fine grinding; the powder in the coarse powder bin is mixed and stirred with the superfine powder through the second kneading machine, and the mixed powder obtained after mixing and stirring is conveyed to the chute, mixed with the raw material powder and then introduced into the grinding machine. The particle composition state of the powder can be improved, the particle size distribution of the powder is obviously changed, the peak width on a particle size distribution diagram is widened, the peak height on the particle size distribution diagram is reduced, the level difference is increased, and higher bulk density is achieved.