518results about "Vortex flow apparatus" patented technology

The invention belongs to the technical field of textile, and particularly relates to a textile waste recovery device which comprises a fixing frame, the top of the fixing frame is fixedly connected with a conveying cylinder through a fixing plate, the bottom of the end, away from the fixing plate, of the conveying cylinder is fixedly connected with a discharging pipe in a communicating mode, and the bottom of the discharging pipe is fixedly connected with a smashing bin in a communicating mode. The crushing bin is fixedly connected to one side of the fixing frame; a screening mechanism is arranged on one side of the fixing frame. Through cooperation of the cyclone separator and the separation bin, crushed waste falls into the cyclone separator through the discharging pipe, the mass of rubber blocks is heavy, during cyclone separation, under the action of centrifugal force, the rubber blocks slide down through the inner wall, fibers are exhausted from the exhaust pipe along with exhausted gas, and separation of rubber block waste and fiber waste is achieved; and then through rotation of the electromagnetic rod, iron products in the rubber block waste are recycled, separation of the iron products and the rubber block waste is achieved, and the screening effect on the rubber block waste is achieved.

The invention discloses a full-size-fraction coal gasification slag in-situ carbon ash water synergistic efficient separation method, which belongs to the technical field of coal chemical industry, and comprises the following steps: converting gasification fine slag and gasification coarse slag to form gasification ash water; sorting the gasified ash water to obtain high-carbon slag and high-ash slag; filtering and dehydrating the high-carbon slag and the high-ash slag; and dehydrating the dehydrated high-carbon residues and high-ash residues by adopting a high-speed rotational flow low-temperature activation method to obtain the high-carbon residues with the water content of less than 33% and the high-ash residues with the water content of less than 8%. The method is adopted at the tail end of the gasification process, and efficient in-situ carbon ash water separation of the whole-size-fraction coal gasification slag is achieved.

The invention discloses a crystallization device for sodium sarcosinate production, relates to the technical field of crystallization devices, and aims to solve the problems that when supersaturated liquid drops make contact with the wall surface of a low-temperature gas-liquid separator, water evaporation is intensified, the solubility of solute is further reduced due to temperature reduction, crystal precipitation is accelerated under the dual action, the supersaturated liquid drops are prone to being attached to the wall of a tank in the crystallization process, and the crystallization effect is poor. In order to solve the problems that the heat exchange efficiency is influenced by scaling of a tank wall, wall-adhered crystals cannot be recycled and the yield is reduced in the prior art, an evaporator is mounted on one side of a gas-liquid separator, a cyclone separator is mounted on the other side of the gas-liquid separator, an ultrasonic disperser is mounted on one side of the cyclone separator, a membrane filter is mounted on one side of the ultrasonic disperser, and a water outlet is formed in the other side of the membrane filter. A gas-liquid separator cleaning mechanism is mounted in the gas-liquid separator, a gas-liquid separator scraping frame is mounted at one end of the gas-liquid separator cleaning mechanism, and a membrane filter cleaning mechanism is mounted in the membrane filter.

The utility model discloses a movable type positive plate sorting production line which comprises a compartment body, and a smashing assembly and a sorting assembly are arranged in the compartment body. The crushing assembly comprises a crusher body, the output end of the crusher body is connected with a cyclone collector, and the solid output end of the cyclone collector is connected with an unloader; according to the utility model, a compartment type structure is adopted, so that flexible deployment in different areas is facilitated, hoisting and loading transportation can be carried out through a hoisting hook during deployment, the transportation cost is effectively reduced, and the renting cost of a site is effectively saved due to the use of the occupied space of the compartment type structure; the production line adopts a compartment type structure, has sealing, sound insulation and heat insulation functions and is combined with negative pressure dust removal equipment to effectively reduce dust and noise generated in the production process, the high-noise working environment is solved, and the safety of workers in the production process is improved; and various requirements of high efficiency of a production line, cleanness of a workshop and a working environment, safety production and the like are met.

An energy-gathering ultrasonic scrubbing device includes a scrubbing cylinder, a reverse stirring system, an energy-gathering ultrasonic vibrator and a slurry storage tank. The reverse stirring system is located inside the scrubbing cylinder. It includes a rotating shaft and at least four layers of reverse stirring blade structures arranged in an axial direction of the rotating shaft. Each layer of reverse stirring blade structure includes several blades arranged in a circumferential direction of the rotating shaft. Inclination directions of blades of two adjacent layers relative to the rotating shaft are opposite. The energy-gathering ultrasonic vibrator includes an ultrasonic transducer and an energy-gathering vibration transmitting rod. The ultrasonic transducer is fixed outside of the scrubbing cylinder. The energy-gathering vibration transmitting rod is connected to the ultrasonic transducer and located inside the scrubbing cylinder. A discharge port of an overflow residue discharge pipe is directly guided to the slurry storage tank.

The invention relates to the technical field of zinc chloride production, in particular to an efficient collecting device for zinc chloride production, which comprises a cyclone separator main body, a conveying pipe is fixedly arranged at the bottom end of the cyclone separator main body, a uniform discharging mechanism is fixedly connected to one end of the conveying pipe, and a treatment box is fixedly connected to the outer wall of the conveying pipe; an iron separation base is arranged in the treatment box in a rotating connection mode, a material blocking frame is arranged on one side of the iron separation base, a material scraping mechanism is arranged in the material blocking frame in a rotating connection mode, and an auxiliary separation mechanism is fixedly connected to the inner wall of the bottom end of the treatment box. When the spiral conveying rod rotates to convey the zinc chloride powder collected by the cyclone separator main body, the iron separation seat can be driven to rotate, so that more thorough separation of iron impurities is facilitated, and the product quality can be improved by effectively removing the iron impurities in the zinc chloride powder.

The invention discloses a sefstromite grinding and selecting method which comprises the following steps: performing coarse grinding and selecting on a sefstromite raw material to separate out fine-grained ilmenite and coarse grinding and selecting weak magnetic concentrate; carrying out spiral-flow type grading on the coarse grinding and separation weak magnetic concentrate, carrying out fine grinding on a sand setting product obtained by spiral-flow type grading, and carrying out spiral-flow type grading on an obtained ore discharging product again; an overflow product obtained through spiral-flow type grading is graded through a high-frequency screen, and an oversize product of the high-frequency screen is subjected to superfine grinding; mixing the ore grinding product obtained by superfine grinding with the undersize product of the high-frequency sieve, and performing primary separation to obtain primary separation section weak magnetic concentrate and primary separation section weak magnetic tailings; and elutriating the weak magnetic concentrate in the primary separation section to obtain the vanadium-titanium-iron concentrate. According to the vanadium-titanium-iron ore grinding separation method, the cost of the vanadium-titanium-iron ore concentrate purification process can be reduced, the product quality of the vanadium-titanium-iron ore concentrate is improved, and efficient recovery of the vanadium-titanium-iron ore concentrate is achieved.

The utility model discloses a sea sand cleaning system based on micro-nano bubble, including micro-nano bubble generating device, sand-water mixing device, slurry pump, whirlcone, delivery pipeline and screening device, micro-nano bubble generating device is provided in the one side of sand-water mixing device, the sand-water mixing device passes through the slurry pump and is communicated with whirlcone, the delivery pipeline passes through the whirlcone, the delivery pipeline passes through the delivery pipeline, the screening device passes through the delivery pipeline, the delivery pipeline passes through the delivery pipeline, the delivery pipeline passes through the delivery pipeline. The screening device is arranged below the swirler, and the micro-nano bubble generating device, the sand-water mixing device, the slurry pump and the swirler are sequentially communicated through a conveying pipeline; through mutual cooperation of the micro-nano bubble generating device, the sand-water mixing device, the slurry pump, the cyclone, the conveying pipeline and the screening device, sea sand is cleaned by utilizing the characteristics of micro-nano bubbles, and chloride ions, pollutants and the like attached to the surface, tiny gaps and deep layers in the sea sand are stripped out, so that the efficient and sufficient cleaning effect is achieved.

The application discloses a raw material feeding device for a construction site, which comprises a counterweight seat, a plurality of universal wheels are installed at the middle part of the lower side of the counterweight seat, a lifting assembly is installed at the edge of the counterweight seat, a material lifting assembly is installed at the upper side of the counterweight seat in an inclined mode, a crushed material assembly is installed at the upper side of the bottom of the material lifting assembly, materials are put into a hopper, a third motor drives two crushing rollers to rotate towards each other, so that large block materials entering the hopper can be crushed, the crushed materials enter a feeding cylinder, a second motor drives a central shaft to rotate, the central shaft drives helical leaves to rotate, the helical leaves helically convey the materials upwards into a feeding inlet, so that the materials enter a column cylinder through the feeding inlet, simultaneously, the central shaft drives a driving bevel gear to rotate, the driving bevel gear meshes with a transmission bevel gear to drive the transmission bevel gear to rotate, the transmission bevel gear drives a shaft rod to rotate through a belt wheel transmission mechanism, the shaft rod drives a spoke disc to rotate, and then a scraper can continuously scrape the materials in the column cylinder.

The application discloses a tailing treatment system, a tailing treatment method and an ore treatment system. The tailing treatment system comprises a tailing thickener and first, second, third and fourth lines for tailing transportation. The first line and the second line are arranged in parallel between coarse-grained tailing sources and a feeding port of the tailing thickener, and the third line and the fourth line are arranged in parallel between a discharging port of the tailing thickener and an underground filling system. A first valve is arranged on the first line, a second valve and a first sand dredger are arranged on the second line, a third valve and a second sand dredger are arranged on the third line, and a fourth valve is arranged on the fourth line. The technical scheme of the application realizes stable adjustment and control of tailing quantity of a beneficiation plant according to changes in properties of mined ores and a demand quantity of underground tailing filling, so that the tailing quantity is matched, and balance of mining and beneficiation production is ensured.

The present application relates to a kind of lactic acid powder scale, continuous production equipment and production method.Lactic acid and calcium lactate are used as raw materials, first, both are input simultaneously according to the set ratio into first hollow paddle dryer, then input into second hollow paddle dryer to complete mixing, drying, lactic acid dehydration in raw material lactic acid digestion and its eutectic with calcium lactate etc.Process, then the mixture is input into pulverizer to be crushed, finally, the target lactic acid powder product is collected and screened by cyclone separator and matching screen.The hollow paddle dryer and its matching equipment used in the present application not only ensure the full mixing of raw materials, but also have heating and drying functions, which can realize the hydrolysis and conversion of lactic acid anhydride, lactylate, poly-lactylate in various specifications of lactic acid raw materials and its eutectic with calcium lactate, drying one-step continuous completion while mixing the feed, and finally shorten the production cycle of the usual process about 4-30 days to the present application process on the same day or shift.

The invention relates to a high-efficiency comprehensive recovery process based on copper-sulfur complex occurrence state kustelite. The high-efficiency comprehensive recovery process comprises the following steps: (1) two-stage selective ore grinding and grading; (2) carrying out selective hydrophobization two-stage size mixing and copper-sulfur-gold-silver rapid rough flotation; (3) carrying out two-stage enhanced rough flotation on the continuous gold; (4) impurity removal, fine selection and copper-sulfur separation of copper-sulfur-gold-silver rough concentrate; and (5) impurity removal and concentration of the gold rough concentrate. According to the method, gold, silver, copper and sulfur in the copper-sulfur-based complex occurrence state gold and silver ore can be effectively recovered, the gold recovery rate is 80% or above, the silver recovery rate is 85% or above, the copper recovery rate is 86% or above, the sulfur recovery rate is 90% or above, the comprehensive resource recovery effect is good, the technology is simple, adaptability is high, the technology stability is good, industrial production controllability is good, and the method is suitable for industrial production. The method has guiding significance on comprehensive utilization of resources of the copper-sulfur-based complex occurrence state kustemite.

The invention relates to the technical field of solid waste harmless and recycling equipment, in particular to a gradient temperature pyrolysis-melting vitrification integrated treatment device and process for red mud. According to the device, an electromagnetic heating rotary kiln pyrolysis section and an electrode melting section are directly coupled with a material transfer device through high-temperature atmosphere isolation. The process comprises the following steps: granulating red mud, a reducing agent and a flux, feeding into a rotary kiln of which the temperature is accurately controlled by multiple groups of electromagnetic induction coils in a partitioned manner, and sequentially completing dehydration, selective reduction and iron particle polymerization to produce gt; high-temperature pyrolysis slag at 1000 DEG C; the pyrolysis slag directly falls into an electric melting pool to complete melting and iron-slag liquid phase separation under absolute isolation of reducing atmosphere and oxidizing atmosphere by the device, and pig iron and a stable glass body are respectively obtained. Through the design of'hot slag direct melting 'and'energy closed loop', the problems of high energy consumption and complex flow of the traditional process are solved, and efficient recovery of iron resources in the red mud and thorough harmless and high-valued utilization of the residues are realized.

This invention discloses a device for recycling and reusing leather processing waste, belonging to the field of leather processing waste treatment technology. The device includes a frame, on which are mounted a feeding hopper, a dual-shaft crushing mechanism, a negative pressure adsorption chamber, and a dust recovery assembly. The dual-shaft crushing mechanism includes a crushing shaft with anti-entanglement blades, an elastic scraper ring, and a reciprocating feeding rod, with a pull-out screen below. The negative pressure adsorption chamber is connected to the dual-shaft crushing mechanism via a connecting duct. The dust recovery assembly includes a cyclone separator, a filter cartridge, and a dust collection box connected in sequence. A compression chamber with an automatic top-loading plate is located below the dust collection box. This invention effectively solves the problem of waste entanglement and blockage through the synergistic action of the anti-entanglement blades, the elastic scraper ring, and the feeding rod; negative pressure adsorption combined with cyclone separation and filtration improves recycling efficiency and reduces dust pollution; the automatic top-loading and shaping of the compression chamber facilitates transportation and reuse. It has the advantages of high automation, high recycling efficiency, and good environmental performance.

The utility model relates to a dust remover for mechanical equipment, which comprises a separator cylinder, the bottom end of the separator cylinder is fixedly connected with a conical cylinder, the top end of the separator cylinder is fixedly connected with an upper cover, the outer end of the separator cylinder is fixedly connected with a square air inlet, and the square air inlet and the separator cylinder are tangentially arranged. The inner wall of the square air inlet is fixedly connected with a positive plate and a negative plate which are oppositely arranged, the inner wall of the separator cylinder is fixedly connected with a spiral guide plate, the inner end of the upper cover is fixedly connected with a cathode wall, the top end of the cathode wall is fixedly connected with a supporting rod, and the bottom end of the supporting rod is fixedly connected with an anode bar. The inner wall of the cathode wall is fixedly connected with a vibration ash removal assembly, the top end of the cathode wall is fixedly connected with a primary separation outlet pipe, through multiple effects of pre-charging, spiral flow guide, electrostatic adsorption and Venturi circulation, the dust removal efficiency is improved, the particle size treatment range is expanded, through the automatic ash removal function of the vibration ash removal assembly, dust accumulation is prevented, and the dust removal efficiency is improved. And the maintenance cost is reduced.

The present disclosure provides a method of operating a separator (1,1a, 1b) for separating particles from a particle-laden airflow. The method comprises receiving, in the controller (18), a separation unit status signal from the separation unit status sensor (16a, 16b, 16c, 16d), deriving, in the controller (18), separator status data based on the separation unit status signal, communicating, via the communication device (19), the separator status data to the external unit (1a, 1b, 26), receiving, via the communication device (19), incoming control data from the external unit (1a, 1b, 26), determining, in the controller (18), based on the separator status data and based on the incoming control data, whether to initiate separating unit maintenance, and selectively initiating separating unit maintenance based on said determination. The disclosure also provides a separator for implementing the method and a system comprising two or more such separators.

The invention relates to a high-energy particle detoxification system and method for waste incineration fly ash, and belongs to the technical field of waste treatment. The device comprises a detoxification device, a fly ash feeding device connected with the detoxification device and used for providing fly ash materials for the detoxification device, a filtering and collecting device connected with the detoxification device and used for receiving the fly ash materials output by the detoxification device, a negative pressure fan connected to an air outlet of the filtering and collecting device, and a circulating pipeline connected with the output end of the negative pressure fan and the detoxification device. The detoxification device comprises a device shell, a feeding assembly arranged at the bottom of the device shell and a high-energy particle detoxification mechanism arranged on the upper side of the feeding assembly. The device has the effect of conducting dioxin detoxification on the fly ash generated by waste incineration.

The invention relates to the technical field of mud-water separation, in particular to a mud-water separation device which comprises a first cyclone, a first vibrating screen and a first water tank, the first cyclone comprises an underflow opening, and the underflow opening of the first cyclone is connected with the feeding end of the first vibrating screen; a notch of the first water tank is connected with the discharging end of the first vibrating screen in a bearing mode, and a pipeline of the first water tank is connected with the feeding end of the first cyclone. A first vibrating screen is connected below an underflow port of a first cyclone, and underflow slurry discharged from the underflow port of the first cyclone is dehydrated and filtered by the first vibrating screen; the first vibrating screen and the second vibrating screen are arranged, so that coarse-particle mud and sand are obtained on the screen surface of the first vibrating screen, fine-particle mud and sand discharged from the underflow port by mistake enter the first water tank along with water and are mixed with to-be-treated slurry, then the slurry in the first water tank is pumped into the first cyclone by the slurry pump to be screened, and waste of overflow slurry is reduced.

The utility model discloses an automatic tea powder crushing device, which comprises a mechanical crusher, a cyclone separator, a dust collector, a first centrifugal fan and a screw conveyer, and is characterized in that a discharge hole of the mechanical crusher is communicated with the upper end part of the cyclone separator; the top of the cyclone separator is communicated with the dust collector, and a discharge hole in the bottom of the cyclone separator is communicated with the spiral conveyor; the upper end of the dust collector is communicated with the first centrifugal fan, and a discharge port of the dust collector is communicated with the spiral conveyor. Tea leaves are subjected to coarse crushing through the hammer crusher, then the tea leaves are crushed into fine-particle tea powder through the mechanical crusher, in the tea powder collecting process, the tea powder is sorted twice through the cyclone separator and the dust collector, and dust pollution and raw material loss caused by the fact that the tea powder enters the atmosphere along with the centrifugal fan are avoided.

The utility model relates to the field of rice straw treatment equipment, in particular to a rice straw smashing device which comprises a first conveying unit and a second conveying unit. The smashing unit is used for receiving the straw input by the first conveying unit and smashing the straw, and a screen is arranged at the output end of the smashing unit; the suction unit is used for sucking out the crushed straw conforming to the specified particle size; the straw recycling device has the advantages that the straw recycling cost is greatly reduced, the regeneration value is improved, farmers can sell straw to obtain profits and can also obtain profits by recycling regenerated straw and selling straw fuel particles, the enthusiasm of the farmers to clean the straw is improved, and the straw burning phenomenon is avoided; the equipment is provided with the cutting tool and the multiple smashing tools, the straw smashing efficiency and effect are effectively improved, meanwhile, the screen is arranged, only straw smashed objects with the small particle size can be output for granulation, and the quality of straw fuel particles is improved.

The invention relates to a cyclone separator regulation and control method and system, and belongs to the technical field of industrial control, and the method comprises the steps that tracing microspheres are injected into a main pipeline of a cyclone separator, and each tracing microsphere comprises a spherical transparent shell and a dark inner core; collecting a sequence image of the tracing microsphere; identifying kernel phases of the tracer microspheres in each frame of the sequence image, determining the number of overturning times of the tracer microspheres according to each kernel phase, and determining the average rotation angular velocity of the tracer microspheres according to the number of overturning times; positioning the coordinates of the tracer microspheres in each frame of the sequence image, associating the tracer microspheres in the front and back adjacent frames, and generating a motion trail according to the corresponding coordinates; and the inlet flow parameter of the cyclone separator is adjusted according to the average rotation angular speed and / or the motion trail. According to the technical scheme, the inlet flow parameters of the cyclone separator can be accurately and efficiently adjusted, and the separation effect is improved.

The utility model relates to the technical field of powder processing, in particular to a combined type powder collecting system which comprises a cyclone collector, a dust remover, an induced draft fan, a transition stock bin, a smashed material inlet, a collecting and conveying pipe and a recycling and conveying pipe. The cyclone collector is communicated with the dust remover through the collecting and conveying pipe, an air outlet connected with the induced draft fan is connected with an air inlet of the dust remover, the transition bin is connected to the bottom of the dust remover, one end of the recycling and conveying pipe is communicated with the transition bin, and the other end of the recycling and conveying pipe is connected to the crushed material inlet. The utility model provides a powder collecting system which is efficient, reliable and easy to maintain, and meets the requirements of modern industrial production.

The application relates to a closed-circuit open-circuit complementary circulating air screening sand making process sand making building, which comprises a sand making machine, an air screening and screening unit, a blower, a fine sand recycler, a cyclone powder collector and a pulse dust collector. The air screening and screening machine of the air screening and screening unit comprises an air screening chamber, and a feeding port, an air inlet, a discharging port, a supplementary air inlet and two air outlets are arranged on the air screening chamber. The blower is communicated with the air inlet of the air screening chamber through an air inlet pipeline. One air outlet of the air screening chamber is communicated with the inlet of the fine sand recycler through a first pipeline. The air outlet of the fine sand recycler is communicated with the air inlet of the cyclone powder collector through a second pipeline. The air outlet of the cyclone powder collector is communicated with the air inlet of the blower through a third pipeline, forming a circulating channel. The other air outlet is communicated with the air inlet of the pulse dust collector through a fourth pipeline. The closed-circuit open-circuit complementary circulating air screening sand making process sand making building has the characteristics of flexible control of the air volume of the air screening and screening system, flexible regulation and control of the powder content of the finished sand, low equipment cost and low energy consumption.

The utility model discloses a high pressure resistant cyclone desander for petroleum drilling and production, which relates to the technical field of petroleum drilling and production, and comprises a high pressure resistant cyclone desander main body and a box cover, one side of the high pressure resistant cyclone desander main body is provided with a liquid inlet pipe, one side of the high pressure resistant cyclone desander main body is provided with a liquid outlet pipe, and the other side of the high pressure resistant cyclone desander main body is provided with a liquid outlet pipe. A transition box is arranged on one side of the liquid outlet pipe, a reinforcing plate is arranged on one side of the transition box, the reinforcing plate is arranged on the supporting legs, a connecting pipe is arranged on the transition box, a fixing mechanism used for pressing and fixing the box cover to the transition box is arranged on the transition box, and the fixing mechanism is arranged on the box cover. A filtering mechanism used for filtering discharged liquid is arranged in the transition box and makes contact with the box cover, so that the liquid is further filtered, the problems of small density, centrifugal force and the like of fine sand are solved, then the liquid is discharged outwards, the box cover is convenient to mount and dismount, the filtered fine sand is convenient to clean, operation is easy, and practicability is high. The practicability is high.

The invention provides a dustproof canning machine and an intelligent control system thereof, and relates to the field of canning machines. The dustproof canning machine comprises a fixed seat, a sorting box body is fixedly arranged at the position, close to the upper end, in the fixed seat, a cyclone separation assembly is embedded in the position, close to the upper end, in the sorting box body, a dispersing box is fixedly arranged at the position, close to the lower end, in the sorting box body, and an inner cavity is formed in the dispersing box; a dispersing assembly is fixedly arranged at the position, close to the lower end, in the inner cavity, an anti-blocking assembly used for scattering raw materials to prevent an outlet from being blocked is installed in the dispersing assembly, and the dispersing assembly comprises an inner box fixedly arranged at the middle point of the bottom end face in the dispersing box and an umbrella-shaped top cover fixedly arranged at the upper end of the inner box and provided with a plurality of screens. Automatic screening treatment after raw materials enter and concentrated downward guiding treatment of dust in the raw materials can be achieved, environmental pollution caused by dust raising is avoided, and the whole equipment can be controlled and operated intelligently through one key and is more convenient to use.

Provided is a new technology for detecting an abnormality related to sludge. A machine tool capable of machining a workpiece while ejecting a coolant includes a first reservoir portion for storing a coolant that contains sludge generated by machining the workpiece, a cyclone filter for separating the coolant supplied from the first reservoir portion into a clean coolant and a contaminated coolant using centrifugal force, and a control unit for controlling the machine tool. The cyclone filter includes: a first outflow tube for sending out the clean coolant; a second outflow tube for sending out the contaminated coolant; a diaphragm mechanism for restricting a flow rate of the contaminated coolant flowing through the second outflow tube; and a flow sensor for detecting the flow rate of the contaminated coolant flowing through the second outflow tube. The control unit executes predetermined abnormality handling processing based on the flow rate detected by the flow sensor being lower than a predetermined flow rate.

The present invention efficiently produces a carbonate salt from a carbon dioxide gas in an exhaust gas. This production method for a carbonate salt comprises: an atomizing step wherein an aqueous alkali solution is formed into a mist by an atomizer; a mixing step wherein the mist of the aqueous alkali solution obtained in the atomizing step is mixed with an exhaust gas so as to have a carbon dioxide gas in the exhaust gas absorbed in the mist and to form a carbonate salt by bonding positive ions of the mist and the carbon dioxide gas with each other, thereby having the mist contain the carbonate salt; and a separation step wherein the mist containing the carbonate salt obtained in the mixing step is separated from the exhaust gas.

The invention discloses a beneficiation process for carbon-containing low-zinc pyrite, which relates to the technical field of mineral processing. The carbon-containing low-zinc pyrite is crushed, ground, and classified by a hydrocyclone to obtain slurry of a required particle size. Subsequently, a desludging cyclone and a flotation machine are used for combined decarbonization. Then, a high-efficiency selective collector is used to float the sulfur-selective flotation ore to obtain pyrite coarse concentrate and pyrite coarse tailings. A "one coarse, two fine, two scavenging, and one fine tailings are separately selected and discarded" process is adopted to improve the flotation rate and the grade of the flotation concentrate. Finally, a magnetic drum is used to scavenger the final tailings, and sulfur-containing magnetic minerals in the final tailings are recovered to improve resource utilization.

The invention relates to the technical field of part cleaning, in particular to a hardware part cleaning device and method for an internal complex environment. And a robot can be matched to assist workpiece positioning and conveying, and cleaning automation and precision are improved. The device comprises a dry ice supply system, an air source system, a mixing ejector, a cleaning cabin, a negative pressure recovery system and the like, according to the method, a sealed cleaning cavity is constructed through a sealing assembly and a sealing cover, negative pressure recovery is started to establish initial negative pressure, then gas-solid two-phase flow formed by mixing dry ice and compressed air is intermittently injected, and the cavity pressure is periodically adjusted; and the cleaning medium fully permeates deep and long oil ducts and gaps, and pollutants are continuously pumped out in cooperation with negative pressure. The problems of kinetic energy attenuation and cleaning dead angles of existing dry ice cleaning complex inner cavities are solved, cleaning is efficient and thorough, secondary pollution is avoided, the robot assists in optimizing the cleaning process, and the robot is suitable for complex inner cavity hardware parts such as industrial gearboxes.