533 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 provides a high-efficiency electric heating system suitable for a gas-solid fluidized bed, and the system comprises the fluidized bed which is provided with a gas inlet, a gas outlet, a material inlet and a material outlet, and is internally provided with solid particles; the heat transfer assembly comprises a plurality of hollow objects arranged in the fluidized bed, and part of the solid particles are contained in the plurality of hollow objects; wherein at least a first part of the hollow object is used for being connected with a power supply end, and a second part of the hollow object is not electrified; and the first part of the hollow object is a graphite electrifying body. Through the system provided by the invention, the loss of the coil is recovered, and the effective utilization rate of electromagnetic induction heating 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 utility model provides a gas-solid countercurrent fluidization heat exchange device. The gas-solid countercurrent fluidization heat exchange device comprises a barrel; a feeding pipe, a flow guide cone and a gas distributor are sequentially arranged in the barrel, the feeding pipe is used for conveying solid particles into the barrel, an upper conical surface is arranged at the upper end of the flow guide cone, a lower conical surface is arranged at the lower end of the flow guide cone, and the upper conical surface is used for enabling the solid particles input by the feeding pipe to disperse and slide downwards; a gas inlet pipe and a gas outlet pipe are arranged on the side wall of the barrel, the gas inlet pipe is used for conveying gas into the gas distributor, the gas distributor is used for guiding the gas to generate downward rotational flow motion, the lower conical surface is used for dispersing the returned gas flowing upwards to flow upwards, and the gas outlet pipe is used for conveying the gas subjected to heat exchange in the barrel to the next procedure; according to the device, gas and solid particles can be subjected to sufficient heat exchange, the heat exchange efficiency is greatly improved, meanwhile, countercurrent movement between the gas and the solid particles can be achieved, the gas flowing speed is increased, and the sectional area of the barrel is greatly reduced.

The invention relates to a multi-scale prediction method for the oxidative ablation behavior of a carbon / carbon porous heat-proof material, and belongs to the technical field of aerospace science, in particular to a multi-scale prediction model for the oxidative ablation behavior of the carbon / carbon porous heat-proof material. A chemical reaction standard enthalpy value and reaction activation energy are analyzed based on a gas-solid interface micro-model of a carbon / carbon porous heat-proof material, and then pore scale fluid mechanics calculation is performed in combination with a porous medium model; explaining an evolution mechanism between gas-solid interfaces by using a micro-scale and pore-scale simulation method, and predicting an ablation process surface evolution process; according to the invention, fluid flow, thermal reaction and heterogeneous chemical reaction in the porous medium in the ablation process can be coupled and simulated at the same time; according to the method, the action mechanism of the heterogeneous chemical reaction at the gas-solid interface in the oxidation ablation process of the carbon / carbon porous heat-proof material can be disclosed, and the distance change after ablation and the ablation surface roughness in the ablation process can be predicted more accurately.

The invention relates to a circulating fluidized bed boiler system, comprising: a main circulating fluidized bed boiler comprising a main hearth, a main separator, a main return feeder and a flue; the activation and modification device comprises a coal slime inlet and a gas-solid fuel outlet, the coal slime is suitable for being at least partially gasified and combusted in the activation and modification device to form gas-solid fuel flowing out of the gas-solid fuel outlet, and the gas-solid fuel outlet is communicated with a fuel nozzle arranged in the main hearth. The invention further relates to a coal slime activating treatment method which comprises the following steps: at least part of coal slime is gasified and combusted in the activating and modifying device to generate gas-solid fuel; and gas-solid fuel is led to the middle lower part of the hearth of the circulating fluidized bed boiler. The scheme can be used for flexible peak regulation of the boiler.

The present invention discloses a high-concentration carbon dioxide capture system built on a cement kiln system and a low-carbon emission type cement clinker production line. Among them, the high-concentration carbon dioxide capture system includes a first decomposing furnace, a preheater assembly, a first gas-solid separator, a second decomposing furnace device, and a second gas-solid separator; the feed end of the first decomposing furnace is connected to the discharge end of the preheater assembly, and the intake end of the first decomposing furnace is connected to the cement kiln system; the inlet end of the first gas-solid separator is connected to the outlet end of the first decomposing furnace, the discharge end of the first gas-solid separator is connected to the second decomposing furnace device, and the outlet end of the first gas-solid separator is connected to the intake end of the preheater assembly; the inlet end of the second gas-solid separator is connected to the second decomposing furnace device. The low-carbon emission type cement clinker production line includes a cement kiln system, a high-concentration carbon dioxide capture system, and a carbon monoxide generation system that are connected to each other. The present invention effectively realizes the series connection and circulation of the production of cement clinker, carbon dioxide, and carbon monoxide.

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 provides a test device for simulating volcanic ash erosion sample materials at normal temperature. The test device comprises a gas supply system, a dust supply system, a gas-solid mixing system and an erosion test system, the gas supply system comprises an air compressor, a high-pressure gas storage tank and an air dryer which are connected in sequence, and an outlet of the air dryer is connected with the gas-solid mixing system; the dust supply system comprises a solid particle storage tank, the upper end of the solid particle storage tank is provided with a feed port, and a lower end outlet is connected with the gas-solid mixing system; the washout test system comprises a test chamber, a fixed disc which is arranged at an inlet of the test chamber and is communicated with the gas-solid mixing system, a nozzle on the fixed disc, and a sample disc which is positioned in the test chamber and is opposite to the fixed disc, and the nozzle is used for uniformly spraying solid particles onto a sample material on the sample disc. The test device can accurately simulate the erosive wear condition of the air compressor blade by the volcanic ash with different concentrations and speeds at normal temperature, and can also simulate the erosive damage condition of the air compressor blade and a thin-wall piece sample by the volcanic ash at a high rotating speed.

The invention relates to the technical field of carbon dioxide mineralization and absorption, in particular to a coal-based solid waste whole-process deep mineralization and storage CO2 system and method.The system comprises a pretreatment system, a PH detection system, an ultrasonic generation system and a mineralization reaction system, and the ultrasonic generation system and the PH detection system are both connected with the mineralization reaction system; the method comprises the following steps: S1, feeding a mixture of fly ash and desulfurized gypsum into a ball mill; according to the method, fly ash or a mixture of fly ash and desulfurized gypsum treated by a chemical leaching reaction liquid in physical modes such as ball milling, high-temperature calcination and hydration is sent to a vortex type mineralization reaction device, and surface inerting layers of fly ash and desulfurized gypsum are destroyed by utilizing an ultrasonic cavitation effect in the mineralization reaction process; leaching of alkali metal ions such as calcium and magnesium in the slurry is promoted, and the gas-solid mass transfer efficiency is improved; under the conditions that the CaO content of the fly ash is limited and no additive is added, the carbon dioxide sealing and absorbing capacity of the fly ash is improved to the maximum extent.

A system and method for early warning of solids pluggage in a gas-solid multi-phase flow through transport pipe. At least one doppler radar-based mass flow sensor measures reflections of signals from solid particles that are carried in a gas transport stream by the transport pipe from a solid particles feed source to a solid particles processing location. A controller detects conditions in the gas transport stream carrying the solid particles in the transport pipe that are representative of an early warning of pluggage of solid particles in the pipe as a function of information provided by the at least one doppler radar-based mass flow sensor.

The utility model discloses a chemical looping reaction system for co-processing sintering flue gas and coal gas, which comprises a sintering flue gas reactor, the upper part of the sintering flue gas reactor is connected with a first gas-solid separator, the lower part of the first gas-solid separator is connected with a first material return valve, the first material return valve is connected with a coal gas reactor, and the middle lower part of the coal gas reactor is provided with an overflow port; the overflow port is connected with the sintering flue gas reactor through an overflow pipe, and the sintering flue gas reactor and the coal gas reactor are filled with oxygen carriers. The device has the beneficial effects that the sintering flue gas and various coal gases of the steel mill can be cooperatively treated; heat and oxygen of the sintering flue gas are recycled; pollutants such as NOx, SO2, CO and dioxin in the sintering flue gas are treated; high-quality steam is produced for heat supply or power generation; and CO2 generated by coal gas combustion is enriched.

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 utility model belongs to the technical field of gas-solid separation, and particularly relates to a cyclone separator which comprises a first separation cylinder, a second separation cylinder, an air inlet pipe, an exhaust pipe and an ash bucket, the first separation cylinder comprises a first cylinder and a first conical cylinder, and the second separation cylinder comprises a second cylinder and a second conical cylinder. The second separation cylinder is coaxially sleeved in the first separation cylinder; the device further comprises a condensing coil, a refrigerating machine and a fan; the dust hopper comprises an inclined guide plate, a sliding rail and a storage groove, the two stages of cyclone barrels are adopted, the first separation barrel is used for collecting coarse particles, the second separation barrel is used for collecting fine particles, the separation efficiency is remarkably improved, and the burden of downstream equipment is relieved; in addition, a water absorption filter screen for removing water vapor, a vibrator and a storage tank for collecting dust are supplemented, so that the equipment is convenient to clean.

The invention discloses a tail gas gas-solid separation device for a sodium sulfate pyrolyzing furnace, and belongs to the technical field of gas-solid separation. The device mainly comprises a pyrolyzing furnace; the separation assembly comprises a cyclone dust remover and a spray tower, a filler layer is arranged in the spray tower, and the filler layer comprises a placement vessel; the replacing assembly comprises a containing box installed on one side of the spraying tower, and a rail is arranged in the containing box; the channel mechanism comprises an opening located in one side of the spraying tower, and a first connecting block and a second connecting block are arranged on the two sides of the containing vessel in an extending mode respectively; a boss is arranged on the spray tower; a plurality of groups of first cylinders are arranged on the accommodating box corresponding to the placing vessels in quantity; a feeding assembly; and a discharging assembly. According to the tail gas gas-solid separation device for the sodium sulfate pyrolyzing furnace, the replacement assembly is arranged, so that the filler balls in the placement vessel can be rapidly and stably replaced, the downtime of equipment is remarkably shortened, and the continuity of tail gas purification operation is ensured.

A method and device for online continuous production of a high-purity oxide powder. The method comprises: spraying a waste acid solution into a production furnace (1), and roasting same to generate an oxide powder; transferring flue gas generated in the production furnace (1) to a flue gas treatment unit, and conveying a primary oxide powder generated by the production furnace (1) to a secondary reactor to be heated and purified again, so as to obtain hot gas and a secondary oxide powder; and performing gas-solid separation on the hot gas generated in the secondary reactor, and recovering a gas phase obtained by the gas-solid separation into the production furnace (1) to recover acid radical ions. The primary oxide powder generated by the roasting in the production furnace (1) is heated and purified again by means of the secondary reactor, and therefore residual acid radical ions and moisture in the powder are further released, and the quality and performance of the oxide powder is improved, thereby obtaining an oxide powder that is free from moisture and acid radical ions; moreover, a stable and airtight internal production environment required for the production furnace (1) can be well maintained.

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.

The utility model discloses a fly ash sampling device which comprises a sampling pipe, an air exhaust piece, a gas-solid separator and a collecting tank, one end of the sampling pipe penetrates into a flue, the sampling pipe is provided with a plurality of sampling ports distributed at intervals, the sampling ports face upwards and are located in the flue, the gas-solid separator is provided with a flue gas inlet, an air exhaust port and an ash discharge port, and the collecting tank is arranged in the flue. The gas outlet is communicated with a gas inlet of the gas extraction piece, the flue gas inlet is communicated with the other end of the sampling pipe, and the collecting tank is detachably mounted at the ash discharge port, so that negative pressure extraction treatment can be performed in the gas-solid separator by the gas extraction piece, and the plurality of sampling ports of the sampling pipe suck flue gas into the gas-solid separator from a flue; flue gas settles fly ash into the collecting tank in the gas-solid separator, gas distribution is pumped and sent out by the gas pumping part, the fly ash sampling device is convenient to sample, sampling can be carried out by installing the collecting tank and starting the gas pumping part, multi-point sampling can be carried out in the flue, and the sampling precision is high.

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 invention discloses a gas-solid fluidized bed with a self-adaptive adjustment internal component under an ocean working condition, the gas-solid fluidized bed comprises a container and the internal component, the internal component comprises a pendulum bob suspended at the center position of an initial bed layer in a container fluidized bed, the pendulum bob and the inertia of particles in the container fluidized bed are not synchronous, and particle aggregation is effectively disturbed; the volume of the connecting piece accounts for 0.5%-5% of the volume of an initial bed layer of the fluidized bed, so that the connecting piece occupies a key space without being blocked, and the problem of inhibiting particle aggregation is solved; by controlling the volume and inertia of the pendulum bob and combining with a multi-degree-of-freedom three-dimensional swinging space, a dynamic physical occupation structure for a particle accumulation area is formed, so that the gas-solid phase contact efficiency is improved, and the problems that the particle accumulation area cannot be eliminated and the maintenance cost is high in the prior art are solved; and the operation stability and the working efficiency of the fluidized bed under the swinging working condition of the ocean floating platform are obviously improved.

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.