381 results about "Gas solid" patented technology

The invention discloses an unconventional feed quality assessment method and system, and relates to the technical field of unconventional feed quality assessment, and the method comprises the following steps: in a feed high-temperature drying treatment process, establishing a multi-dimensional sensing monitoring baseline, continuously obtaining mercury vapor concentration gradient, moisture evaporation rate and airflow velocity field data in a feed drying environment, and calculating the quality of the feed; forming a time sequence feature set reflecting the dynamic change of mercury vaporization; and constructing a gas-solid interaction analytical model by using the time sequence feature set, and carrying out coupling analysis on the mercury vapor migration trajectory and the temperature distribution and humidity distribution of the feed particle surface to generate a spatial distribution data set representing the spatial distribution feature of the mercury vapor redeposition region. According to the invention, the whole-process monitoring and dynamic regulation and control of mercury vaporization, migration and redeposition in the feed drying process are realized, through multi-dimensional monitoring, amplitude limiting control and high-frequency disturbance, the mercury distribution is balanced, the risk is reduced, the drying safety and the feed quality stability are improved, and the controllable management of heavy metal pollution is effectively realized.

The invention relates to a fluidized bed reaction system for a silicon-carbon negative electrode material. The silicon-carbon negative electrode material fluidized bed reaction system comprises a drying tank, a fluidized bed reactor and a discharge tank, the drying tank is provided with a material cavity, and the drying tank can dry materials in the material cavity and can also convey replacement gas into the material cavity to replace gas in the material cavity; the fluidized bed reactor is internally provided with a gas-solid separation area, a reaction area and an initial fluidization area which are sequentially arranged from top to bottom, and the reaction area is communicated with the material cavity so as to receive the dried materials; the discharge tank is provided with a dust removal cavity, the dust removal cavity is communicated with the gas-solid separation area through a discharge pipeline, the discharge pipeline is provided with a blasting assembly, and when the pressure in the fluidized bed reactor exceeds a first preset value, the blasting assembly can be broken to release gas in the fluidized bed reactor; meanwhile, powder in the fluidized bed reactor can be discharged into the washing liquid in the dust removal cavity through the discharge pipeline.

An activated carbon feeding and discharging device comprises a stock bin, a hopper and a draught fan, the stock bin is a sealed cavity, the stock bin is provided with a feeding port, a discharging port and an air suction port, the discharging port is formed in the bottom of the stock bin, the air suction port is formed in the top of the stock bin, the discharging port of the hopper is connected with an inlet of a three-way valve, and the air suction port is connected with an outlet of the three-way valve. The other inlet of the three-way valve is connected with a suction device, an outlet of the three-way valve is connected with a feeding port of the stock bin through a pipeline, an air inlet of the fan is connected with an air suction port of the stock bin through a pipeline, an air outlet of the fan is connected with an air supply port of the material guide pipe through a pipeline, and a feeding port of the material guide pipe is connected with a discharging port of the stock bin. An outlet of the material guide pipe is connected with an inlet of the gas-solid separation device, and a solid outlet of the gas-solid separation device is connected with the discharge pipe. According to the device, activated carbon can be fed and discharged, dust is prevented from being discharged, pollution to the environment is prevented, and the production efficiency is greatly improved.

The invention discloses a coal gangue distributed homogeneous high-temperature activation calcination method and system, and relates to the technical field of resources and environments, the system comprises a coal gangue powder preparation and feeding system, a coal gangue powder distributed homogeneous high-temperature activation calcination system, a high-temperature powder cooling system, a finished product collection system and a flue gas purification system; the coal gangue powder distributed homogeneous high-temperature activation calcining system comprises a primary cyclone preheating system and a distributed homogeneous high-temperature activation furnace; the air inlet end of the primary cyclone preheating system is communicated with the coal gangue powder preparing and feeding system, the primary cyclone preheating system is communicated with the homogeneous high-temperature activation furnace, materials in the distributed homogeneous high-temperature activation furnace are separated by the gas-solid cyclone separator and then are divided into two parts by the distributor, one part enters the high-temperature powder cooling system, and the other part enters the high-temperature powder cooling system; and the other part returns to the distributed homogeneous high-temperature activation furnace for circulation. According to the method, large-scale treatment of high-temperature activation and calcination of the coal gangue is realized, and the uniformity and controllability of product quality are remarkably improved.

The invention discloses a steel slag carbon sequestration reaction device, and belongs to the technical field of reaction devices. The device comprises a reactor which is internally provided with a heating part, a partition plate and a water storage disc, is externally connected with a gas supply bottle and a steam generator, and realizes parameter regulation and control through a controller. During working, steel slag is placed on the partition gauze, the heating part is heated, CO2 is introduced into the gas bottle, the steam generator and the water storage disc provide steam, the driving unit drives the partition and the water storage disc to swing, and gas-solid contact is strengthened; the water storage tank, the sealing cylinder and the like form a water circulation system to automatically supplement and return water; and the pressure release valve guarantees safety. Through the synergistic effect of temperature, humidity and mechanical swing, the carbonation reaction efficiency of the steel slag and CO2 is improved, and automatic operation of steel slag carbon sequestration is achieved. The device has the advantages that mass transfer is enhanced through mechanical swing, energy is saved through closed water circulation, steel slag is prevented from falling off through gauze design, waste is treated with waste, and high efficiency and environment friendliness are achieved.

The invention discloses a detoxification system for washed household garbage incineration fly ash, and belongs to the technical field of hazardous waste treatment. Comprising a fly ash temporary-storage tempering unit, a low-temperature anti-sticking drying unit, a temperature-control anti-scaling pyrolysis unit and a gas-solid separation unit which are connected in sequence. The fly ash caching and tempering unit is provided with a calcium salt content online detector and an anti-caking agent adding device, so that accurate tempering is realized; the low-temperature anti-sticking drying unit realizes low-temperature anti-sticking drying; the temperature-control anti-scaling pyrolysis unit adopts an indirect heating type rotary kiln and is provided with a plasma catalysis assembly, so that medium-temperature degradation of dioxin and scaling prevention are realized; the gas-solid separation unit comprises an efficient cyclone separator, a high-temperature ceramic dust remover and a water-cooled conveyor, and efficient separation and cooling are achieved. Through systematic structural design and integration, the technical problems that the calcium salt-containing fly ash after water washing is prone to caking and scaling in the treatment process, and dioxin degradation is not thorough are effectively solved.

The present application belongs to the technical field of biomass boiler, in particular to a circulating fluidized bed boiler tail flue fly ash conveying system, which comprises a bin pump and a fly ash conveying pipeline, the bin pump is arranged at the bottom of the discharge pipe of the tail flue ash bucket; a flow zone is arranged at the middle part of the discharge pipe, a flow bin is arranged inside the flow zone, and the flow bin is communicated with the bin pump through a mixing pipe arranged at the middle part; the accumulated ash and the airflow are mixed in advance to form a gas-solid mixture which is sent into the bin pump and flows to the ash storage, so that the flowability of the ash is improved, the short-time concentrated release of the ash is converted into the continuous release of the gas-solid mixture, and the load on the bin pump is reduced; and the process of forming the gas-solid mixture from the accumulated ash expands the gap between the cinder, so that the cinder is diffused, the excessive concentration of the cinder through the bin pump is avoided, the blockage of the upper opening or the valve of the bin pump is avoided, the failure rate of the bin pump is reduced, and the smooth transfer of the accumulated ash of the boiler tail flue is ensured.

The invention relates to the technical field of solid waste recycling, and particularly provides a circulating fluidized bed system for gasification fly ash resourceful treatment and an aluminum oxide leaching method. The system comprises a hearth, a gas-solid heat exchange bed and an activation reactor. The gasified fly ash and a water glass binder are agglomerated and thickened through a fine powder agglomerator, incineration is conducted through a hearth, and ammonia gas is injected to fix heavy metal; the ash enters an activation reactor, a mullite structure is destroyed by utilizing residual carbon oxygen-enriched combustion (850-950 DEG C) of fly ash, aluminum ions are extracted through gradient acid leaching, acid leaching liquid is neutralized by ammonia water to precipitate aluminum hydroxide, and high-purity aluminum oxide (greater than 99%) and a byproduct ammonium chloride fertilizer are obtained through calcination; the escape rate of fine particles is lower than 10%, the leaching rate of aluminum oxide exceeds 85%, and the treatment cost is reduced by 50% or above compared with that of a traditional method.

According to the electrochemical energy storage safety prevention and control system based on multi-mode perception and dynamic regulation and control and the control method thereof, by integrating multi-source sensor data and an intelligent early warning model, early recognition of thermal runaway is achieved; micro-channel active cooling and targeted spraying are combined to restrain heat spreading, and a gas-solid composite fire extinguishing agent and inert gas are linked to conduct multi-stage fire extinguishing.

The application relates to a gas-solid reaction rotary furnace. The gas-solid reaction rotary furnace comprises a support frame, a base, a frame rotatably connected to the base, a first driver for driving the frame to rotate, a rotary furnace pipe arranged in the frame, the rotary furnace pipe comprising a powder inlet and outlet end and a gas inlet and outlet end, and a gas assembly arranged at the gas inlet and outlet end of the rotary furnace pipe, wherein when the gas assembly supplies gas to the rotary furnace pipe, the rotary furnace pipe can be moved to a state where the gas inlet and outlet end is higher than the powder inlet and outlet end. During operation of the gas-solid reaction rotary furnace, the rotary furnace pipe is kept in an inclined rotating state, the loading capacity of the rotary furnace pipe is increased, the production capacity of a single furnace is increased, the energy consumption of unit weight of material is reduced, and the processing time and cost are reduced.

The device is mainly used for zinc powder waste slag recycling treatment device of thermal zinc spraying, establishes an integrated waste slag treatment system, adopts high-efficiency electromagnetic induction heating technology, precise temperature control mechanism, combination design of rotary valve airlock and high-precision filter screen, breaks through the defects of low separation efficiency and gas leakage of traditional separation equipment, realizes gas-solid separation, introduces a high-temperature high-pressure reaction kettle for carbon dioxide green conversion process, and cooperatively realizes the recycling of zinc resources (recycled zinc can be directly used for thermal zinc spraying) and the environmental protection treatment of carbon dioxide (urea is generated), greatly improves the economy and sustainability.

The present application belongs to the technical field of acetylene preparation, and discloses a method and system for efficiently preparing acetylene and hydrogen from natural gas based on turbine cracking. The method comprises the following steps: obtaining 95%-100% purified methane gas through raw material pretreatment, preheating to 523-823 K, and then feeding into a turbine cracking reaction unit to be heated to 1800-2200 K within 1-10 ms and cracked for 1-10 ms; the cracked gas is quenched to below 800 K within 0.5-3 ms and the waste heat is recovered; finally, carbon black, high-purity acetylene and hydrogen are obtained through gas-solid and gas separation. The system comprises raw material pretreatment, preheating, turbine cracking reaction, quenching and waste heat recovery, gas-solid separation, gas separation units, and a matching monitoring and collaborative control module, and realizes multi-parameter collaborative control and online carbon cleaning. The present application does not introduce oxygen, the conversion rate of natural gas is 92%-95%, the acetylene yield is 83%-87.5%, the energy consumption is low, the products are easy to separate, it is green and environmentally friendly, and it is suitable for industrial continuous production.

The invention relates to an efficient gas-solid reaction process and an integrated industrial system, and belongs to the technical field of gas-solid reaction in chemical production. The process flow comprises the following steps: crushing and drying coke by a pulverizing unit, preheating the coke and sulfur steam to be greater than or equal to 550 DEG C, and jointly entering a gas-solid reaction unit; and the product enters a gas-solid separation unit, is subjected to two-stage gas-solid separation at a high temperature of 450-680 DEG C and a low temperature of less than or equal to 200 DEG C, and then is The integrated industrial system based on the efficient gas-solid reaction process is applied to carbon disulfide production through a coke method, the problems of external heat supply and byproduct generation control in the reaction process of coke and sulfur are solved, and the system is simple in process chain, easy and convenient to operate, compact in structure and suitable for continuous and closed carbon disulfide production requirements through the coke method.

The utility model relates to the technical field of natural gas filtering separators, and discloses a gas-solid separator for carbon-gas mixed combustion, which comprises a bottom plate, the top of the bottom plate is fixedly connected with a tank body, the outer side of the tank body is fixedly connected with a feed port, and one end of the feed port far away from the tank body is fixedly connected with a shell. An air cylinder is rotatably connected to the interior of the shell, a connecting block is rotatably connected to the driving end of the air cylinder, a rotating ring is fixedly connected to the outer side of the connecting block, a plurality of linkage blocks are rotatably connected to the interior of the rotating ring, and a second rotating plate is slidably connected to the interior of each linkage block. According to the utility model, professional technicians do not need to carry out complex connection operation, and common workers can master the connection operation skillfully through simple training, so that the requirement on the skill level of operators is reduced, and the occurrence of connection errors and the like caused by unskilled operation is reduced.

The invention discloses a width gradient tungsten disulfide nanobelt, a preparation method thereof and an application of the width gradient tungsten disulfide nanobelt in a self-driven photoelectric detector, a Ni film is deposited on a substrate and is annealed to form catalytic particles, and a chemical vapor deposition system is utilized to accurately control the temperature gradient between tungsten trioxide in a central temperature zone and a growth substrate in a downstream temperature zone, so that the width gradient tungsten disulfide nanobelt is obtained. And the solid sulfur source is propelled at a constant rate, the dynamic change of the sulfur / tungsten atomic ratio in the reaction environment is regulated and controlled, and a growth mode is guided to be converted from a gas-liquid-solid mechanism to a gas-solid mechanism, so that controllable preparation of the tungsten disulfide nanobelt with the width continuously and progressively decreased in the axial direction is realized. The width of the nanobelt gradually changes from 150-500 nm to 50-120 nm, the length of the nanobelt reaches 3-12 [mu] m, and the nanobelt has an armchair edge and a 3R phase stacking structure. A self-driven photoelectric detector constructed based on the nanobelt realizes high-sensitivity detection of 532 nm laser under zero bias voltage, the responsivity reaches 5.04 A / W, the detectivity reaches 3.23 * 10 < 12 > Jones, and the nanobelt shows important application value in the fields of optical signal detection, optical switches and wireless optical communication.

The application discloses an impingement type inertial separator for separating pulverized coal and air, which comprises a separator cylinder, an air-pulverized coal mixture inlet pipe arranged on one side of the lower end of the separator cylinder, a vertical middle shaft arranged in the separator cylinder, a secondary separation baffle arranged above the secondary separation baffle, and an umbrella-shaped separation component arranged below the secondary separation baffle; the umbrella-shaped separation component comprises a plurality of conical shells, the top of each conical shell is provided with an umbrella-shaped separation component middle shaft connecting hole, the secondary separation baffle is provided with a secondary separation baffle middle shaft connecting hole in the center, the middle shaft passes through the secondary separation baffle middle shaft connecting hole and the umbrella-shaped separation component middle shaft connecting hole from top to bottom in sequence, and is fixedly connected with the secondary separation baffle and the umbrella-shaped separation component. The separator utilizes the umbrella-shaped separation component with the size gradually increasing from bottom to top to gradually intercept the pulverized coal particles, and the fine pulverized coal particles are filtered through the filter screen on the secondary separation baffle, so that the gas-solid separation is more complete, and the separation efficiency is higher.

This invention discloses a gasification reduction ironmaking system and method for the synergistic resource utilization of solid and hazardous waste and red mud. The system includes a raw material pretreatment unit, a pyrolysis gasification and purification unit, a gasification reduction ironmaking unit, and a waste heat comprehensive utilization unit. After pretreatment, the solid and hazardous waste enters a multi-stage gasifier for pyrolysis and gasification reactions. Combined with a two-stage gas-solid separation and return structure, the gas yield and carbon conversion rate are improved. The gasified gas enters the reduction furnace and pre-reduction furnace for cascade reduction, realizing the efficient recovery of iron resources from red mud. The waste heat comprehensive utilization unit performs multi-stage heat exchange on the tail gas and uses it for the preparation of gasifying agents, realizing closed-loop heat utilization. This invention constructs a multi-cycle system of gas, heat, and materials, realizing the recycling of gas, heat, and materials. It not only improves the resource utilization rate but also obtains tail gas rich in methane, achieving the synergistic and efficient resource utilization of solid and hazardous waste and red mud.

The invention relates to a circulating fluidized bed (CFB) stock boiler. According to the reconstruction and transformation method of the boiler, during transformation, the original boiler barrel, hearth and vertical shaft main body structures of the boiler are kept unchanged, and only a cyclone separator and a material returning system of the original boiler are omitted. The space between the rear wall of the hearth and the front wall of the vertical shaft is transformed into a two-return-stroke flue, a three-return-stroke flue and an auxiliary combustion chamber, and the structure has the function of integrating gas-solid separation, radiation heat transfer and boiling combustion; after transformation, the output can be obviously increased, the original output can be maintained, the material flow, flow velocity and flow resistance of the main combustion chamber can be reduced, the material internal circulation amount in the furnace is improved, and the fuel burnout degree is improved. The method is high in transformation efficiency, small in project amount, low in cost and short in period; after transformation, the pain points of high flow resistance, high failure rate and the like of the separator and a material returning system are thoroughly eliminated; the power utilization rate of the boiler can be reduced by 30%-50%, the operation and maintenance cost can be reduced by 70%-90%, the reliability, stability and heat efficiency of boiler operation are remarkably improved, the initial smoke emission concentration is greatly reduced, and the method is suitable for transformation of various CFB boilers in active service.

The invention relates to the technical field of rare earth secondary resource recovery, in particular to a neodymium iron boron waste recovery method. The method comprises the following steps: firstly, grinding the neodymium iron boron waste into fine granularity, and spraying into a specially designed flash reaction furnace body through a nozzle by virtue of carrier gas; meanwhile, sodium chlorate powder is continuously added into a pyrolysis area in the furnace, so that the sodium chlorate powder is instantly decomposed at a certain temperature, and high-activity gas is generated; the sprayed waste particles are in a suspended state in the reaction tower and are subjected to instantaneous gas-solid reaction with high-temperature active gas, rare earth elements are quickly oxidized and chlorinated and are converted into soluble rare earth oxychloride, and iron is mainly converted into FeO which is easy to magnetically separate. And carrying out cyclone dust collection and quenching on the reacted material to obtain a roasted product, recovering rare earth through water leaching, and recovering iron through magnetic separation. According to the invention, selective oxidation is completed at low temperature in a short time (second level), and the method has the outstanding advantages of high efficiency, low energy consumption and high recovery rate.

The invention relates to a flow guide component, a fluidized bed reactor and a reaction method. A flow guide member of the present invention comprises an elongate member having a proximal end and a distal end, and an elongate body extending between the proximal end and the distal end, where the elongate body comprises at least a section that, when the elongate body is cut at any position in a flow guide direction within the section, the flow guide member is configured to receive a flow of fluid from the elongate body. Only a pair of points which are farthest away from each other can be found on the outer periphery of the obtained cross section, the points are called a first point and a second point respectively, the outer periphery of the total cross section is divided into a first line and a second line which are connected end to end by the first point and the second point, and a straight line segment connected between the first point and the second point is called a boundary line. The length of the first line is set to be L1, the length of the second line is set to be L2, and the L1 / L2 value is larger than 1. A stronger vortex can be formed at the flow guide component, so that gas-solid contact and mixing are more effectively promoted, and the gas-solid fluidization quality is further improved.

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.

The utility model provides a kind of sludge treatment system of coupling carbonization and gasification, including pyrolysis unit, combustion unit, waste heat recovery unit and flue gas collection unit. Among them, pyrolysis unit includes pyrolysis furnace and cyclone separator, the top of pyrolysis furnace is equipped with gas injection port, it is suitable for the temperature of fluidized gas in pyrolysis furnace is adjusted by inputting oxygen, to control pyrolysis furnace in gasification reaction or carbonization reaction;Cyclone separator is suitable for the pyrolysis product is carried out gas-solid separation and obtains pyrolysis gas and pyrolysis carbon, the outlet of cyclone separator includes gas product outlet and solid product outlet;Combustion unit is suitable for receiving pyrolysis gas generated in pyrolysis furnace and carries out combustion reaction, obtains flue gas;Waste heat recovery unit includes heat exchange component, heat exchange component is communicated with combustion unit, it is suitable for receiving and recovering heat in flue gas by heat transfer;Flue gas collection unit is communicated with heat exchange component, it is suitable for purifying and collecting flue gas.

The invention discloses a gas-solid separation type sintering machine vertical pipe superheater device, which belongs to the technical field of sintering and comprises a sintering machine tail air bellow, a gas-solid separation tee joint, a settling pipe, a superheater and a large flue. And one port of the gas-solid separation tee joint is communicated with a tail air box of the sintering machine. And the upstream end of the settling pipe is communicated with one port of the gas-solid separation tee joint. And the upstream end of the superheater is communicated with one port of the gas-solid separation tee joint. And the large flue is respectively communicated with the downstream end of the settling pipe and the downstream end of the superheater. After flue gas enters the gas-solid separation tee joint from a tail air box of the sintering machine, a gas purification path and a dust removal path are formed by the tee joint structure. Dust-containing particles of the flue gas flow along the direction of the settling pipe under the blocking and gravity effects of the structure of the gas-solid separation tee joint, so that large particles are settled. And the dust content of airflow after particle separation is remarkably reduced, and the quality of flue gas entering the superheater is greatly improved.

The invention discloses flaky alumina and a preparation method thereof, the flaky alumina is in a square sheet shape and has a single crystal structure, the grain size of the flaky alumina is 300-1300 nm, and the grain thickness is less than or equal to 150 nm. The preparation method comprises the following steps: placing roasted SB powder and a quaternary ammonium base solution in a pressure container in a solid-liquid two-phase separation manner, carrying out a gas-solid reaction under certain heat treatment conditions, and drying and roasting the reacted solid powder to obtain the flaky aluminum oxide. The flaky aluminum oxide is regular in structure and flat and smooth in surface, can be used as a polishing material, a coating, a catalysis material and an adsorption material, and is simple in preparation process, easy in raw material obtaining and easy in industrial production.

The utility model discloses a dry quenching dedusting ash recycling and reusing injection system which comprises a dry quenching dedusting ash storage bin, a rotary valve, a pneumatic injection conveying system, a conveying pipeline and a mill feeding device, an outlet in the lower portion of the dry quenching dedusting ash storage bin is connected with an inlet of the rotary valve, and an outlet of the rotary valve is connected with an online injector. The online ejector comprises a solid material inlet, a gas inlet and a gas-solid mixture ejection opening, the solid material inlet is connected with the rotary valve outlet, the gas inlet is connected with one end of the gas conveying pipeline, and the gas-solid mixture ejection opening is connected with one end of the mixture conveying pipeline; an outlet of the mixture conveying pipeline is connected with at least one mill coal dropping pipe of the coal injection station, and a mill feeding device is arranged at the mill coal dropping pipe; the rotary valve comprises a rotor and a shell, the shell is provided with a feeding port and a discharging port, the rotor is arranged in the shell and located between the feeding port and the discharging port, and the gap between the rotor and the shell is smaller than 0.8 mm.

The invention relates to a low-density powder material negative-pressure unloading device which comprises a negative-pressure powder conveying system and a supporting and moving system, the negative-pressure powder conveying system comprises a powder collecting device, a gas-solid separating device and a conveying fan, and the powder collecting device is provided with a suction inlet and an output port which are communicated. An output port of the powder collecting device, the gas-solid separating device and the conveying fan are sequentially connected in series through a conveying pipeline, the conveying fan is used for forming negative pressure airflow in the powder collecting device, and a discharging port of the gas-solid separating device is connected with the powder storage device; the supporting moving system is connected with the powder collecting device so as to drive the powder collecting device to move in a reciprocating mode in the length direction of a compartment of the high-barrier truck. According to the low-density powder material unloading device, dust dissipation in the unloading process can be avoided, the problem of environmental pollution around unloading is solved, the unloading speed can be effectively increased, the unloading process is more stable, a high-barrier truck can be used for transporting powder materials, and the investment cost of transport vehicles and the material transport cost can be greatly reduced.

This invention discloses a production process for activated molecular sieve powder using a rotary kiln, involving equipment such as a rotary roasting kiln, a dryer, an exhaust cyclone separator, and a dehumidification cyclone separator. The process includes: molecular sieve raw powder is mixed with high-temperature flue gas generated by the dryer and the rotary roasting kiln to form powder-containing flue gas, which enters the exhaust cyclone separator for initial gas-solid separation. The separated material enters a feeding device, and the flue gas is discharged after secondary separation by an exhaust dust collector, while the material flows back to the exhaust cyclone separator. The material undergoes secondary drying in the rotary roasting kiln, forming material-containing moisture gas. This moisture gas is treated by gas-solid separation in the dehumidification cyclone separator and separation by the dehumidification dust collector, with the gas discharged and the material flowing back. The secondary-dried material enters the roasting zone for roasting to form activated powder, and after cooling in the cooling zone, it is conveyed by a water-cooled screw conveyor. This process reduces the moisture content of the material and the roasting time, uses natural gas as an energy source to reduce energy consumption, utilizes high-temperature flue gas as a heat source to improve efficiency, and the pneumatic conveying system improves the environment and reduces land occupation.

The present disclosure relates to an apparatus and process for lithium aluminosilicate transformation roasting, waste heat recovery and tail gas treatment, and relates to the technical field of lithium aluminosilicate transformation. The transformation unit in the apparatus comprises a heating assembly, a transformation assembly and a transformation material gas-solid separator; the transformation material gas-solid separator comprises a transformation material inlet, a solid outlet and a gas outlet; the heating assembly comprises a connected temperature rising furnace and a first air supply assembly; the transformation assembly comprises a connected transformation furnace and a second air supply assembly; the first outlet of the temperature rising furnace is connected with the second inlet of the transformation furnace, and the first outlet of the transformation furnace is connected with the transformation material inlet; the temperature rising furnace and the transformation furnace are both vertical furnaces; the first inlet of the heat exchange unit is connected with the feeding unit, and the second inlet of the heat exchange unit is connected with the gas outlet; the first outlet of the heat exchange unit is connected with the second inlet of the temperature rising furnace, the second outlet of the heat exchange unit is connected with the flue gas treatment unit, and the solid outlet is used for making the transformed material enter the subsequent process.

The utility model provides a high-temperature gypsum production system which utilizes heat of produced high-temperature gypsum to heat desulfurized tail gas to realize white elimination of the tail gas so as to reduce the production cost of the high-temperature gypsum, and relates to the technical field of high-temperature gypsum production. The high-temperature gypsum production system comprises a high-temperature gypsum suspension calcining furnace, a spray desulfurization tower and a gas-solid separator, an air inlet of the gas-solid separator is connected with an air outlet of the high-temperature gypsum suspension calcining furnace, a tail gas inlet of the spray desulfurization tower is connected with an air outlet of the gas-solid separator, and the high-temperature gypsum production system is characterized by further comprising a first-stage gas-solid separation cooler, a discharge hole of the gas-solid separator is connected with a cooling gas inlet of the first-stage gas-solid separation cooler; an air inlet branch pipe for introducing air into the exhaust flue is arranged on the exhaust flue of the spray desulfurization tower, and an air outlet of the first-stage gas-solid separation cooler is connected with an air inlet of the air inlet branch pipe; and a gas mixing device positioned above the gas inlet branch pipe is arranged in the exhaust flue.

The utility model discloses a large cyclone gas separation device for spraying, which belongs to the technical field of spraying gas separation and comprises a separator, the separator comprises a cylinder and a first gas inlet, the first gas inlet is arranged on the outer side wall of the circumference of the cylinder and communicated with an inner cavity of the cylinder, and a second gas inlet is arranged on the outer side wall of the cylinder and communicated with the inner cavity of the cylinder. Impurity-containing gas enters the inner cavity of the cylinder through the first gas inlet for gas-solid separation; the spiral mechanism is arranged in an inner cavity of the first gas inlet and used for spirally guiding gas flow so that gas can rotate, and according to the large cyclone gas separation device for spraying, the spiral mechanism is used for spirally guiding impurity-containing gas at the gas inlet so that the gas can rotate; the rotating air generates large centrifugal force, the turbulence intensity of the air flow is improved, the centrifugal force and the turbulence intensity generated by the rotating air flow act together, particles are separated out more easily, and the separation efficiency of the cyclone separator is improved.