40 results about "Air classifier" patented technology

The invention relates to the technical field of carbon black production, in particular to a carbon black drying system. In order to solve the technical problem that flue gas generated by a carbon black drying system in the prior art needs to be desulfurized and denitrated, the invention provides a novel carbon black drying system which comprises a cyclone separator, tail gas separated by the cyclone separator and powdery carbon black are cooled by cooling water of a Venturi tube and then enter a main bag filter, and the tail gas and the powdery carbon black enter the main bag filter. Powdery carbon black treated by the main bag filter enters from a pipeline in front of an inlet of a cyclone separator after passing through an air blower and a granulator, and enters the cyclone separator after being subjected to contact heat exchange with a high-temperature gas-solid mixture; high-temperature dry granular carbon black discharged from the lower part of equipment of the cyclone separator is subjected to heat exchange by an air separator, and is screened into residual powdery carbon black and low-temperature dry granular carbon black, the low-temperature dry granular carbon black is conveyed to a carbon black storage system, and the residual powdery carbon black passes through an air blower and then enters a granulator for re-granulation. By means of the drying system, the initial investment cost of carbon black production design is reduced.

A classifier device, in particular high-performance air classifier, for separating material to be classified into a fine material and a coarse material, the classifier device including: a stationary machine housing, which has a coarse material outlet; a static guide vane basket, which is arranged in the machine housing and which has a guide vane ring formed from a plurality of pivotable flap means; and wherein the guide vane ring further has a nozzle flap means, which is formed to convey a flushing gas volume flow in the direction of the coarse material outlet. The present invention further creates a classifier system with a classifier device of this type as well as a method for operating a classifier device of this type.

The invention relates to a system (1) for preparing coated wood material compression-moulded bodies (100) to form scatterable particles, comprising: a comminuting device (2) for the contact-based comminuting of coated wood material compression-moulded bodies (100) into wood material compression-moulded body fragments with coating-containing wood material compression-moulded body fragments and coating-free wood material compression-moulded body fragments; a riser-pipe air classifier (3) for classification into a bad fraction (31) with predominantly coating-containing wood material compression-moulded body fragments and a good fraction (32) with predominantly coating-free wood material compression-moulded body fragments; an intake device (4) for the weight-dependent and / or time-dependent supplying of the riser-pipe air classifier (3) with wood material compression-moulded body fragments, wherein the intake device (4) comprises a weighing device for the gravimetric determination of the supplying of the riser-pipe air classifier (3) per time unit, wherein the riser-pipe air classifier (3) is downstream of the comminuting device (2) and the intake device (4) is arranged between the riser-pipe air classifier (3) and the comminuting device (2).

This utility model discloses a dust removal and flow assist device for the connecting pipe between an air classifier and a dust collector. It includes an open inclined trough at the bottom of the connecting pipe and an air inlet pipe fixedly connected to the bottom of the open inclined trough. An air storage chamber is provided within the open inclined trough. One end of the air inlet pipe is connected to the air storage chamber, and the other end is connected to a compressed air pipe. A vent cover is fixedly installed at the upper opening of the air storage chamber. Compressed air is introduced into the air storage chamber through the air inlet pipe, and the air in the air storage chamber moves upward through the vent cover. This dust removal and flow assist device for the connecting pipe between the air classifier and the dust collector can achieve dust removal during production, preventing dust accumulation at the bottom of the connecting pipe.

The utility model discloses a multi-cavity feed grinder, and relates to the technical field of feed processing. The device comprises a crushing box, a screening assembly and a winnowing machine, a winnowing machine is arranged at the top end of the smashing box, a screening assembly is arranged in the smashing box, two baffles inclining towards the upper end of the screening assembly are further arranged in the smashing box, a rotating shaft is rotationally connected into the smashing box, a rotating cylinder is fixedly connected to the peripheral side of the rotating shaft, and smashing blades are fixedly connected to the peripheral side of the rotating cylinder. Crushing teeth are arranged on the lower inclined surfaces of the baffles close to the crushing blades; according to the feed grinder, the grinding box, the screening assembly and the winnowing machine are arranged, so that the problem that the whole feed grinder cannot work due to the fact that a single assembly of an existing traditional feed grinder goes wrong is solved, and the problem that the sizes of ground feed particles are different is solved; and the problem that crushed leaves are damaged due to the fact that stones are possibly mixed in the added feed is solved.

The invention relates to the technical field of automatic manufacturing of rubber products, and discloses a sealing ring multi-stage progressive increase type trimming control system and method based on separation rate feedback, and the system comprises a frequency conversion trimming execution mechanism, a winnowing machine, a visual counting sensor, a shunting mechanism, a backflow channel and a dynamic parameter controller. The method comprises the steps of collecting material images in real time through a visual counting sensor and calculating the proportion of unseparated products; the dynamic parameter controller compares the proportion of the unseparated products with a preset separation threshold value; and when the proportion of the unseparated products exceeds the standard, the shunting mechanism intercepts the materials from entering the backflow channel, and the dynamic parameter controller progressively increases the number of cycles and adjusts the current actual execution strength parameter of the frequency conversion edge removal execution mechanism, so that the physical output strength of the frequency conversion edge removal execution mechanism is progressively increased in a non-linear manner along with the increase of the number of cycles. According to the method, the mechanical damage rate of the sealing ring body is reduced while the stubborn flash removal rate is ensured through the multi-stage progressive increase type parameter adjustment logic.

The utility model provides a horizontal winnowing machine which comprises a horizontal winnowing machine body, a feeding cylinder arranged at the top of the winnowing machine body, a support arranged at the top of the winnowing machine body, a feeding box vertically arranged on the support in a vibrating mode, a screening and filtering cylinder arranged inside the feeding box, and a feeding pipe arranged at the bottom of the feeding box. A feeding hopper is further arranged at the top of the winnowing machine body, a scattering shaft extending to the upper side of the feeding hopper is rotationally arranged in the screening and filtering cylinder, and scattering blades are arranged on the scattering shaft. According to the horizontal winnowing machine, the basic requirement for winnowing treatment of materials can be met, the scattering structure can only scatter caked materials needing to be scattered, and therefore the overall efficiency of feeding and the overall efficiency of winnowing are prevented from being affected.

The present invention relates to the technical field of material separation in waste treatment, and in particular to a spiral air classifier. The spiral air classifier comprises a housing of a cylindrical structure, a discharging pipe arranged at the upper end of the housing, and a feeding pipe located on the upper side wall of the housing below the discharging pipe; a flow-disturbing disc for generating cyclonic airflow is provided in an inner cavity of the housing; a central pipe communicated with the feeding pipe is provided above the flow-disturbing disc; the flow-disturbing disc is transmittingly connected to a driving mechanism; a booster blower is provided on the feeding pipe, and a negative pressure blower is provided on the discharging pipe. The spiral air classifier can achieve separation of impurities by means of cyclonic airflow and centrifugal force, and be used for removing impurities such as sand, soil and gravel having high specific gravity from materials such as plastic films that have low specific gravity and easily float in the air. The spiral air classifier has high separation efficiency, and is particularly applicable to materials having high impurity content.

The invention relates to a method and a device for producing a scattered particle mat (1) from particles (2, 3), for example from lignocellulose-containing material such as fibres or chips or mineral particles, on a running forming belt (23), comprising the following steps: a) providing a bunker (4) having mixed fine and coarse particles (2, 3) which are at least partially provided with a binder, b) dividing the particles (2, 3) emerging from the bunker (4) via at least one size-dividing device (5) into at least one first partial quantity (6) of fine particles (2) and at least one second partial quantity (7) of coarse particles (3), c) further fractionating the at least first partial quantity (6) and the at least second partial quantity (7) again according to particle size, and d) scattering the particles of each partial quantity (6, 7) as a layer having an increasing or decreasing size onto the forming belt (23) in order to form the scattered particle mat (1). In order to reduce the required energy consumption of the scattering device and / or to reduce the overall size, the invention proposes that the first partial quantity (6) of the entire particulate material is fractioned by means of an air classifier (17).

This invention discloses a feeding device and method for a leaf filament air classifier that can improve air separation efficiency. The device includes an incoming material pretreatment unit, an air-separation feeding unit, and a support. The air-separation feeding unit and the support are respectively fixed to the side plates of the conveying component of the leaf filament air classifier. The incoming material pretreatment unit is fixed on the support and is connected to the middle box of the leaf filament air classifier. The incoming material pretreatment unit includes a transmission trough, a high-frequency vibrating motor, a support spring, a screening bar, and a discharge hopper. The air-separation feeding unit includes an air-separation feeding unit box, a high-speed conveyor belt, a first partition, a sealed discharger, a second partition, a pressure plate cavity, and a pressure plate. This invention utilizes the difference in suspension velocity to separate small-sized materials from most of the stems mixed in them. The stems fall and leave the production line through the waste hopper component of the leaf filament air classifier, while the leaf filaments move upward with the airflow and enter the middle box of the leaf filament air classifier through the channel between the first partition and the lower part of the high-speed conveyor belt.

The utility model discloses a multi-point adjustable air inlet mode efficient powder concentrator which comprises a powder concentrator shell, two correspondingly arranged scattering grids are arranged in the powder concentrator shell, end plates are installed on the two scattering grids, a supporting plate is fixedly installed between the two end plates, a telescopic baffle plate is installed on the supporting plate, and the telescopic baffle plate is fixedly installed on the powder concentrator shell. A scattering plate mounted on the scattering grid is arranged at the corresponding position of the telescopic baffle plate, and circular welding spots are uniformly welded on the scattering plate; and an end plate hole is formed in the end plate, a stud is installed in the end plate hole, the stud is movably sleeved with a position adjusting block, and the position adjusting block is welded and fixed to the telescopic baffle plate. By optimizing the scattering plate and adjusting the structural form of the baffle plate, the scattering efficiency is improved, the sorting capacity is improved, and the service life of the scattering grid of the powder concentrator is prolonged.

This invention belongs to the field of tobacco technology and discloses a heat storage and heating system adapted for tobacco leaf drying in tobacco processing lines. The heat storage unit of the system supplies process hot air to the tobacco leaf drying unit, which is equipped with an air classifier. A tobacco dust processing unit is connected to the air classifier and burns the tobacco dust from the air classifier to supply process hot air to the tobacco leaf drying unit. An energy dispatching unit establishes communication and control links with a photovoltaic access interface, the heat storage unit, the tobacco dust processing unit, and an emergency switching unit. This invention achieves zero carbon emissions for process heating, reduces operating costs, and recycles tobacco dust resources.

This application relates to the field of air classifier mill technology, and provides a feeding device for an air classifier mill, including an air classifier mill body, a mounting frame, and a vibrating mechanism. The upper end of the air classifier mill body is provided with a feed pipe, and the lower end of the air classifier mill body is provided with a feeding pipe. A control valve is installed on the feeding pipe. The vibrating mechanism includes a drive assembly and a vibrating component. The drive assembly includes a motor and a cam. The motor is mounted on the mounting frame and drives the cam to rotate. The vibrating component includes a push plate, a wedge plate, an impact block, and a first elastic element. The push plate is movably inserted through the mounting frame, and the wedge plate is disposed between the push plate and the impact block, located between the mounting frame and the feeding pipe. By setting up the vibrating mechanism, when material is fed through the feeding pipe, the motor drives the cam to rotate. Under the cooperation of the cam and the wedge plate, and the action of the rebound force of the first elastic element, the wedge plate drives the push plate and the impact block to move left and right and continuously impact the feeding pipe, thereby reducing the adhesion and accumulation of material in the feeding pipe and ensuring smooth feeding.

A material recovery system for wet ash generated from municipal waste includes infeed storage of wet ash, an oversized and organic removal subsystem, a material sizing subsystem, a metal recovery subsystem, and an aggregate finishing subsystem. The system for material recovery results in the output of commercially usable aggregate material, ferrous materials, and non-ferrous materials. The subsystems of the material recovery system include one or more screens, dryers, feed hoppers, eddy current separators, magnets, crushers, and air classifiers.

This utility model belongs to the field of air classifier manufacturing technology, and particularly relates to a combined assembly tooling for air classifier rotors. The combined assembly tooling for air classifier rotors includes a base, a limiting seat on the base, a central shaft inside the limiting seat, a pressure plate fitted on the upper part of the central shaft, and a locking nut threaded onto the central shaft above the pressure plate. Multiple uprights are arranged on the base outside the limiting seat, and limiting rings are arranged on the base outside the uprights. During the assembly of the air classifier rotors, the two ends of the central cylinder of the air classifier rotor abut against the limiting seat and the pressure plate, respectively; the upper and lower plates of the air classifier rotor abut against the limiting rings and the upper ends of the uprights, respectively; and the blades of the air classifier rotor abut against the base, with their inner surfaces abutting against the outer surfaces of the limiting rings. This utility model adopts a combined structure, and by replacing different components, it can meet the assembly requirements of various types of air classifier rotors, significantly improving the manufacturing precision and efficiency of air classifier rotors.

A material recovery system for wet ash generated from municipal waste includes infeed storage of wet ash, an oversized and organic removal subsystem, a material sizing subsystem, a metal recovery subsystem, and an aggregate finishing subsystem. The system for material recovery results in the output of commercially usable aggregate material, ferrous materials, and non-ferrous materials. The subsystems of the material recovery system include one or more screens, dryers, feed hoppers, eddy current separators, magnets, crushers, and air classifiers.

The invention provides a screening device (10), in particular a high performance winnower, for separating a screened material into a fine material and a coarse material, the screening device (10) comprising: a stationary casing (11) having a coarse material outlet (12); a static guide vane cage (13) arranged in the housing (11) and having a guide vane ring formed by a plurality of pivotable baffle devices (14); the guide vane ring further comprises a nozzle baffle device (15) which is designed to convey the flushing gas flow in the direction of the coarse material outlet (12). The invention further relates to a screening system (1) having such a screening device (10), and to a method (M) for operating such a screening device.

This utility model discloses a complete set of equipment for a coal gangue sand making production line, including a coal gangue crushing and fine screening system, a powder conveyor belt, a fine material conveyor belt, a coarse material conveyor belt, a powder processing production line, a fine material processing production line, and a coarse material processing production line. The coal gangue crushing and fine screening system is connected to the powder processing production line, the fine material processing production line, and the coarse material processing production line respectively through corresponding conveyor belts. Compared with the prior art, this utility model crushes and screens coal gangue into three types of products: powder, fine material, and coarse material through the coal gangue crushing and fine screening system. The powder processing production line can process and utilize the powder generated in the crushing stage. The fine material processing production line and the coarse material processing production line can produce fine coal gangue and coarse coal gangue. The fly ash and coal gangue powder generated by the fine crushing and shaping of the sand making machine are collected and reused through the air classifier and the gyratory screen, realizing the full utilization of coal gangue waste and zero pollution discharge.

The invention relates to a plant (1) for processing coated wood-based molded bodies (100) into free-flowing particles comprising: a comminution device (2) for the contact comminution of coated wood-based molded bodies (100) into wood-based molded body fragments containing coating and wood-based molded body fragments coating-free wood-based molded body fragments are fed into a riser tube air classifier (3) for classification into a defective fraction (31) with predominantly coated wood-based molded body fragments and a good fraction (32) consisting predominantly of coating-free Wood-based molded body fragments a feeding device (4) for feeding the riser tube air classifier (3) with wood-based material molded body fragments in a weight- and / or time-dependent manner, wherein the feeding device (4) comprises a weighing device for gravimetrically determining the feeding of the riser tube air classifier (3) per unit of time, wherein the riser tube air classifier (3) is downstream of the comminution device (2) and the feeding device (4) is arranged between the riser tube air classifier (3) and the comminution device (2).

This utility model belongs to the field of air classifier technology, specifically a fine air classifier for calcium hydroxide, comprising a machine body; a feeding hopper fixedly connected to the top of the machine body; an air outlet pipe fixedly connected to the side wall of the machine body away from the feeding hopper; a filter bag installed at the bottom of the air outlet pipe; a discharging hopper fixedly connected to the bottom of the machine body; multiple sets of discharging hoppers arranged at the bottom of the machine body; a fan installed on the side wall of the machine body near the feeding hopper; a baffle fixedly connected to the bottom of the inner side wall of the machine body; and a crushing component provided inside the feeding hopper. Through the above structure, the crushing component crushes the raw materials entering the machine body, forming a calcium hydroxide air classifier, realizing the function of crushing the raw materials entering the machine body, solving the problem of air classification failure caused by raw material agglomeration, reducing the situation of raw material agglomeration falling directly into the machine body, and improving the air classification effect.

The utility model provides a recycled aggregate impurity removal device. The recycled aggregate impurity removing device comprises a rack, a conveying assembly, a winnowing assembly and a collecting assembly, air outlets and air inlets are formed in the surfaces of the front side wall and the rear side wall of the rack correspondingly, and a plurality of sets of air outlets and air inlets which are distributed front and back are formed in the surface of the rack and distributed in a stepped mode; the number of the conveying assemblies corresponds to that of the air inlets, the conveying assemblies are all arranged on the surface, on the lower sides of the air inlets, of the rack, the winnowing assembly is installed at the top of the rack, the surfaces, on the outer sides of the air outlets, of the rack are all fixedly connected with air outlet pipes, and a top plate is fixedly connected between the bottoms of the air outlet pipes; the recycled aggregate impurity removal device provided by the utility model has the advantages that light garbage discharged from the air outlet pipe can be conveniently and effectively collected and arranged, and meanwhile, raised dust generated at the air outlet pipe is effectively inhibited.

An air classifier for classifying a mixture of fine and coarse particles by size or aerodynamic shape, wherein the air classifier generally comprises a settling box through which a laminar airflow passes that improves introduction of particles into the airflow and thus improves separation and grading of particles by the air classifier.

The utility model provides an efficient and environment-friendly integrated sand making building. The sand making building comprises a sand making device, a high-frequency screen, a wet mixing machine, a fine sand recoverer and a dust collecting system. Wherein the sand making device is composed of a roll crusher and a vertical shaft crusher, materials sequentially enter a hoister, a material guide pipe and a high-frequency screen for classification through a feeding belt, oversize materials return to the sand making device for closed-circuit crushing, undersize materials are sorted into fine sand and finished sand through the winnowing device, and the fine sand is recycled after being treated through the fine sand recoverer. And the finished sand is output after being humidified by the humidifying machine. The dust collection system adopts multi-point negative pressure dust collection, and dust emission is adjusted in real time. According to the utility model, the sand gradation is optimized through the cooperation of the double hosts for crushing, the material returning energy consumption is reduced by combining closed-loop separation, efficient and environment-friendly production is realized by utilizing dynamic winnowing and dust removal, and the technical problems of high loss rate of fine sand, non-uniform gradation and dust overflow in the traditional sand making are solved.

This utility model discloses a material pressure stabilizing and supplying device for an air classifier mill, belonging to the field of material supply technology for air classifier mills. It includes a hollow classifying shell, a cover, and a bottom cover, with the cover, bottom cover, and hollow classifying shell forming a classifying cavity. A feed pipe is connected to the lower part of the outer wall of the hollow classifying shell, and a material sorting mechanism is provided on the upper part of the outer wall of the hollow classifying shell. A first air nozzle is located at the end of the feed pipe opposite to the hollow classifying shell, and the feed pipe has an inlet corresponding to the first air nozzle and communicating with the feed channel. Several second air nozzles, which can communicate with the classifying cavity and are staggered, are arranged radially on the bottom cover. A pressure monitoring unit for monitoring the air pressure inside the classifying cavity is provided on the cover and / or the hollow classifying shell and / or the bottom cover. This utility model's material pressure stabilizing and supplying device for an air classifier mill solves the problem of poor material floating effect within the classifying cavity, ensuring stable material delivery.

The utility model discloses a vortex air classifier double-layer rotating cage suitable for superfine powder separation, and belongs to the technical field of powder preparation. A double-layer rotating cage structure is designed on the basis of centrifugal separation and sedimentation velocity difference of coarse and fine particles. The specific implementation method is as follows: the outer layer of the rotating cage consists of rotating cage blades which are uniformly distributed in the circumferential direction and is vertically fixed between an upper wheel carrier and a lower wheel carrier, and coarse and fine particles are subjected to centrifugal separation at the rotating cage blades to finish primary grading; the rotating cage inner layer is composed of a drainage cone and a triangular connecting support, the triangular connecting support and the lower wheel carrier are connected and fixed through threads, and the outer edges of the three arc-shaped faces of the drainage cone are attached to the inner edge of the upper wheel carrier. The taper angle of the drainage cone ranges from 5 degrees to 15 degrees, and the axial length of the drainage cone ranges from 1 / 8 to 1 time of the axial length of the rotating cage blade. And coarse and fine particles at the tail end of the drainage cone are separated for the second time due to settling velocity difference. The longer the drainage cone is, the smaller the particle size of the obtained fine powder product is and the narrower the particle size distribution is.

This utility model relates to the field of air classifiers, and more particularly to a high-efficiency and energy-saving vibrating screen recycling device, comprising a mounting frame one, a conveyor belt one, a mounting frame two, and a screen plate. The first mounting frame one houses the first conveyor belt, and the second mounting frame is located at the lower end of one side. The second mounting frame two houses the second conveyor belt, and the first mounting frame one has a slot inside, with the screen plate inside the slot. Guide wheels are located on both outer walls of the first mounting frame one, and a connecting rod is rotatably mounted between one of the guide wheels and the screen plate. This device achieves rapid material classification and screening through the coordinated action of a single motor driving the first conveyor belt and the screen plate, improving separation efficiency, enhancing screening effect, and ensuring precise separation of coarse and fine materials. It solves the problem of insufficient screening of feed powder in existing V-type air classifiers, which leads to excessive power consumption and energy waste.

A screening device for an air classifier is characterized by comprising a housing, a powder feeding port at the upper end of the housing, a rearwardly inclined screen in the middle of the housing, a fragment discharge port at the bottom rear end of the housing, and an air classifier inlet at the middle of the bottom of the housing. The screen inside the housing filters metal fragments from the powder, preventing them from clogging the classifier's pipes or jamming the classifier wheels. The screen is arranged at an inclination, and the fragment discharge port at the bottom of the housing prevents metal fragments from accumulating on the screen surface during continuous screening. A pneumatic ultrasonic device is installed on the outside of the housing; its vibration causes fragments to detach from the screen and be discharged through the discharge port, thereby improving fragment cleaning efficiency. The powder feeding port, classifier inlet, and fragment discharge port are all equipped with chuck devices that can be connected to the material tank chuck for easy disassembly. This invention has a simple and reasonable structure, effectively separating metal fragments from the powder and greatly improving the production efficiency of the classifier.

The utility model relates to a kind of grain impurity air separator, belong to grain detection technical field, including the air suction collecting pipe, impurity unloader, impurity suction pipe and air separator shell connected in turn, air separator shell is provided with grain discharge port and grain unloading port, the grain discharge port is through with grain unloading port, air inlet is equipped between the grain discharge port and grain unloading port.The utility model device is connected in turn by optimization design, and air suction collecting pipe, impurity unloader, impurity suction pipe and air separator shell form an efficient air separation system.Grain enters air separator shell by grain discharge port, due to the setting of air inlet, so that airflow can be uniformly applied to grain, effectively separate impurities.Outlet is set in the just above of grain unloading port, further improve the air separation effect, ensure that grain is fully air separation treatment before unloading.

This application discloses a flexible air-separating device for tobacco processing line blades to prevent material blockage, relating to the technical field of tobacco processing equipment. It includes: an air-separating device, a vibrating conveyor, an adjusting mechanism, a through-beam photoelectric sensor, and a controller. The vertical adjusting plate of the adjusting mechanism movably covers the material inlet. The photoelectric sensor's transmitting and receiving ends are respectively located on the left and right sidewalls of the inlet, with its optical axis horizontally spanning the space between the conveyor end and the inlet. The controller links the photoelectric signal with the raising and lowering of the adjusting plate. During use, this application achieves adaptive dynamic adjustment of the inlet opening through hardware coordination of precise photoelectric positioning and mechanical adjustment. When material conveying is overloaded, causing the accumulation height to reach the photoelectric detection area, the controller immediately drives the adjusting plate to rise and widen the inlet opening, effectively preventing equipment downtime caused by material blockage and significantly improving production continuity.

Air classifier 15 for air classifying a material stream 2, comprising at least one static and / or dynamic air classifier 6, and means for supplying a classifier air stream to the air classifier 6, wherein the air classifier 15 separates a material stream 2 into a first fraction 8 and a second fraction 7, wherein the first fraction 8 comprises in particular films, wherein the air classifier 15 comprises at least one measuring device, wherein the measuring device is arranged in the area of ​​the air classifier 6, in particular downstream of the air classifier 6, wherein the measuring device detects contaminants of at least one material type contained in the first fraction 8, wherein the material type is assigned to the second fraction 7, wherein the air classifier 15 comprises a control and / or a regulating device 13, wherein the control and / or the regulating device 13 is for controlling and / or regulating at least one,The separation behavior of the air classifier is influenced by parameter 6, and depends on the number of contaminants detected by the measuring device.