46results about How to "Controlled diffusion" patented technology

The invention provides a braid quality detection system and method based on industrial camera detection, and relates to the technical field of data processing. A multi-angle acquisition module; an image fusion module; an optical correction module; a preprocessing module; a preliminary defect detection module; a fine defect analysis module; a self-adaptive filtering module; the dynamic coordinate mapping module is used for mapping the physical position of the defect to obtain actual coordinate data; the data storage and analysis module is used for storing and analyzing historical actual coordinate data and related detection data and generating a quality report and a trend analysis report; the alarm and control module is used for automatically sending out an alarm signal and adjusting production parameters or pausing production when the defect number or the trend change rate in the trend analysis report reaches a preset threshold value; according to the invention, the accuracy and efficiency of braid quality detection are improved.

The invention discloses a method for evaluating smoke blocking performance of an air curtain of a bifurcated tunnel, and belongs to the field of ventilation and fire prevention and control design of the bifurcated tunnel. The method comprises the following steps: establishing a bifurcated tunnel model; a CFD-DEM coupling simulation method is adopted; establishing and setting a numerical model; calibrating parameters; setting working conditions; carrying out CFD-DEM model coupling calculation; and evaluating the smoke blocking performance of the air curtain. According to the method, the CFD-DEM coupling model is established, so that the smoke blocking performance of the air curtain in the bifurcated tunnel can be systematically evaluated; by running a CFD-DEM coupling solving program, the motion trail and the stress condition of dust particles under the action of an air curtain can be obtained; by changing the parameters of the main tunnel longitudinal ventilation-air curtain ventilation system, such as the air curtain spraying angle, spraying speed and thickness and the main tunnel longitudinal wind speed, the dust removal effects under different working conditions can be analyzed; based on the simulation result, the design and parameter adjustment of the air curtain can be optimized.

According to the technical scheme, the sealing method for the split type bottled powder product comprises the following steps that a stable high-strength electric field is formed at the top of a filling bottle, and static electricity of the filling bottle is neutralized by plasma formed by air ionized by the electric field; when material filling is prepared, the gap between the discharging nozzle and a filling bottle is reduced, and dust splashing caused by the discharging gap is reduced; after the blanking nozzle is used for blanking, dust splashing is generated, negative pressure is formed at the blanking nozzle, and splashing dust generated in the filling process is removed; after filling, dust on the edge of a sealing opening of the filling bottle is cleaned above the filling bottle; the sealing film and the filling bottle are sealed and positioned; and the positioned sealing film and the sealing position of the filling bottle are sealed. By means of a series of innovative measures, static neutralization, dust control, precise sealing and quality guarantee in the filling process are achieved, the production efficiency and the product quality are improved, and meanwhile environmental pollution is reduced. The sealing device is also suitable for sealing other split bottled powder products.

The invention discloses a three-dimensional enteromorpha real-time monitoring and identification method based on an ABA technology, and belongs to the field of marine environment monitoring, and the method specifically comprises the steps: obtaining marine environment data and image and video data of an enteromorpha region, and carrying out the preprocessing of the data to generate an image set; extracting feature points by using a pre-trained deep learning model, and obtaining a matching point pair set through a feature matching algorithm; based on the matching point pair set, generating a preliminary three-dimensional point cloud model by using a camera attitude estimation method and a three-dimensional point reconstruction algorithm, and performing optimization through an affine beam adjustment method to obtain an optimal three-dimensional point cloud model; calculating vegetation indexes NDVI, NR-B and NDWI values based on the optimal three-dimensional point cloud model, and extracting and classifying an enteromorpha region; and the accuracy, efficiency and real-time performance of enteromorpha monitoring are improved.

The invention discloses an energy storage system. The energy storage system comprises a shell; at least one battery module is arranged in the shell, a cooling medium is arranged in the battery module, and the cooling medium is in direct contact with a battery cell in the battery module; the control module is used for controlling the temperature of the battery module according to the heat management information, and the heat management information comprises at least one of temperature information and voltage information. Therefore, the control module is arranged to control the temperature of the battery module according to at least one of the temperature information and the voltage information, so that after thermal runaway of the battery module occurs, the energy storage system can trigger management and control from multiple dimensions, and then the temperature of the thermal runaway battery module can be rapidly controlled through multi-stage control of the energy storage system; therefore, heat diffusion of the thermal runaway battery module can be effectively controlled, and protection and temperature control of an energy storage system are facilitated.

The invention designs self-feeding dust removal integrated equipment for ore processing, and belongs to the technical field of dust removal devices. The dust removal device comprises a bottom frame, a lifting table, a conveying frame, a dust suppression cover, a dust collector, a dust collection cover and a dust removal tank. The lifting table is firmly assembled on one side of the bottom frame, the position of the upper end of the lifting table is higher than that of the upper end of the bottom frame, and the conveying frame is connected between the bottom frame and the upper end of the lifting table in an inclined mode. And the upper end of the conveying frame is covered and sealed by a dust suppression cover. The self-feeding and dust-removing all-in-one machine for ore processing has extremely outstanding advantages. The working efficiency is greatly improved, and meanwhile, the product quality is powerfully guaranteed; the pollution degree to the environment is effectively reduced, and the energy consumption is reduced; the working environment condition is greatly optimized; the operation process is simple, convenient and feasible, and the later maintenance is convenient. The equipment has non-negligible key value and far-reaching significance for promoting the ore processing industry to advance towards the sustainable development.

The invention relates to a method for improving the comprehensive performance of a main shaft gear, which adopts the treatment process of cleaning, preheating, carburizing, high-temperature tempering, quenching preheating, quenching, subzero treatment, low-temperature tempering and gear grinding, so that not only can the depth of a carburized layer be accurately controlled, but also the use performance of a carburized part can be ensured. Wherein the preheating treatment before carburizing can refine grains, obtain a uniform metallographic structure and reduce thermal distortion of parts, the effect of controlling the size stability of the gear is achieved, then the toughness of a carburized layer is improved, and the service life of the gear is prolonged. And then high-temperature tempering after carburization can promote further uniform diffusion of carbon elements on the surface layer, the structure is balanced, and the internal stress of gear parts is reduced. And the preheating treatment before quenching can prevent the part from cracking in the subsequent quenching process. And a proper subzero treatment temperature gradient is selected according to material components, so that the content of retained austenite in a carburized layer is controlled, and the mechanical property and the comprehensive property of the material are improved.

A display panel includes: a base substrate including a front surface and a rear surface, and including a hole area, an effective area surrounding the hole area, and a peripheral area adjacent to the effective area, wherein a through hole passing through the front surface and the rear surface and a groove portion surrounding the through hole and recessed from the front surface are defined in the hole area; a circuit layer including a first circuit insulating layer arranged on the base substrate, a second circuit insulating layer arranged on the first circuit insulating layer, and a thin film transistor arranged in the effective area; a display layer including a first display insulating layer arranged on the circuit layer, a second display insulating layer arranged on the first display insulating layer, and a light emitting device arranged in the effective area and connected to the thin film transistor; a guide pattern arranged on the circuit layer and disposed between the light emitting device and the groove portion; and an encapsulation layer covering the light emitting device and including a first inorganic layer, a second inorganic layer, and an organic layer, wherein the organic layer covers at least a portion of the guide pattern.

The invention relates to the technical field of fire fighting and extinguishing, and particularly discloses an automobile fire fighting and extinguishing cover which comprises a fire extinguishing cover main body and further comprises a plurality of fan-shaped covers which are rotationally stored on the two sides of the interior of the fire extinguishing cover main body; the rotating blocks are connected to the two sides of the fire extinguishing cover body through first rotating shafts, and telescopic sleeves are fixedly connected to the rotating blocks; according to the fire extinguishing cover disclosed by the invention, the fire extinguishing cover main body and the fan-shaped cover are matched, so that an automobile at a fire position can be positioned in the fire extinguishing cover main body, and the fire position is isolated and extinguished, so that fire objects are isolated from the surrounding environment, fire behavior and smoke diffusion are controlled, and correspondingly, when the automobile is spontaneously ignited and ignited, fire extinguishing is realized. Compared with the prior art, the automobile fire-proof device has the advantages that a fire-catching automobile can be quickly subjected to isolated combustion, the situation of fire spreading and the phenomenon of catching fire to the surrounding environment are avoided, continuous fire proceeding is avoided, and then the loss phenomenon caused by the fire is reduced.

The utility model relates to the technical field of pile foundation sediment cleaning, in particular to a pile foundation sediment thickness efficient cleaning instrument which comprises an upper sediment discharging pipe located on the upper portion, the bottom of the upper sediment discharging pipe is connected with a lower sediment discharging pipe, and the bottom of the lower sediment discharging pipe is connected with an inner collecting pipeline. A gathering cover is installed on the periphery of the bottom of the lower deslagging pipe and the connecting end of the inner collecting pipeline, a plurality of fixing frame bodies and foldable frame bodies for fixing the gathering cover are further arranged on the periphery of the lower deslagging pipe, and an air inlet pipe communicated to the interior of the instrument is further fixedly arranged on the outer side of the upper deslagging pipe. Compared with an existing cleaning mode, the efficient pile foundation sediment thickness cleaning instrument has the remarkable advantages of being efficient, accurate, safe, environmentally friendly and the like, the requirement for pile foundation sediment cleaning can be better met, and the engineering quality and efficiency are improved.

The embodiment of the invention provides a preparation method of nitrogen-defect g-C3N4 and a catalytic performance regulation and control method, and relates to the technical field of catalytic performance regulation and control of g-C3N4. The preparation method of the nitrogen defect g-C3N4 comprises the following steps: step S1, preparing bulk phase g-C3N4; and S2, dividing the bulk phase g-C3N4 obtained in the step S1 into a plurality of parts, and adding ammonium chloride with different weights into each part of the bulk phase g-C3N4 to synthesize g-C3N4 with different nitrogen content defects. The preparation method has the advantages of simple synthesis process, low cost of synthetic materials, environmental protection and the like.

The application discloses a split low-temperature drying equipment warehouse body precise air control structure and method, relates to the sludge low-temperature drying technical field, and includes the warehouse body and the heat source center, the bottom of the warehouse body is connected with the dehumidification fan and the heating fan through the air pipe respectively, the top of the warehouse body is internally provided with the condenser, the condenser is connected with the heating fan through the pipeline, the heat source center is arranged outside the warehouse body, and the heat source center is connected with the dehumidification fan and the warehouse body through the pipeline;Wherein, the bottom of the warehouse body is spaced apart by the corresponding space through the partition baffle, and according to the air volume of the dehumidification circulating air generated by the dehumidification fan and the heating circulating air generated by the heating fan, the corresponding space is provided with the air diffuser or the flow guide plate to make the circulating air realize diffusion and paving in the horizontal direction and the vertical direction, and then the air speed of each position is same when the circulating air flows to the top direction of the warehouse body.The application is convenient for heating / dehumidification circulating air to be sent into from different sides of the warehouse body, and is beneficial to the precise control of the distribution of circulating air after entering the warehouse body.

The invention discloses a slag falling prevention structure from a continuous belt conveyor to a transfer belt conveyor, and relates to the technical field of bulk material conveying, the slag falling prevention structure comprises a material guide groove arranged between the continuous belt conveyor and the transfer belt conveyor; the conveying sealing mechanism comprises a sealing skirt edge which is arranged at the end, close to the transfer belt conveyor, of the material guide groove, an elastic adjusting device is arranged between the sealing skirt edge and the material guide groove, the elastic adjusting device deforms when materials are conveyed so that the end, away from the material guide groove, of the sealing skirt edge can be attached to the bearing face of the transfer belt conveyor, and the reliability of the sealing effect is guaranteed. After material conveying is completed, the elastic adjusting device resets to enable the sealing skirt to be away from the bearing face, and abrasion is reduced; the buffering mechanism is arranged on the inner wall of the bottom of the material guide groove and buffers materials when the material guide groove receives the materials, impact is reduced, and material scattering and dust raising are reduced; the dust removal mechanism is arranged above the material guide groove and used for absorbing dust-containing gas generated during material conveying, the purpose of dust suppression is achieved, dust diffusion is controlled, and the working environment of a transfer point is improved.

The utility model relates to the technical field of numerical control lathes, and discloses a numerical control lathe punching structure which comprises a base, a first servo motor is arranged in the middle of one side in the base, two driving wheels are arranged outside the output end of the first servo motor in a sleeved mode, and transmission belts are arranged outside the two driving wheels in a sleeved mode. And driven wheels are arranged on the other sides of the interiors of the two transmission belts in a sleeving mode correspondingly, and first threaded rods are arranged in the two driven wheels in a sleeving mode correspondingly. When the structure is used, the first servo motor drives the first threaded rod to rotate, so that the protective shells on the two sides can move towards the middle to cover the punching position, chippings in the punching process can be prevented from splashing to the periphery of an operator, safety is improved, and the accidental injury risk is reduced; and meanwhile, scrap diffusion can be effectively controlled, a working area is kept clean, and the cleaning frequency and workload are reduced.

The invention discloses a novel structure in a deep groove type super junction field effect transistor and a manufacturing method, the novel structure comprises a semiconductor layer arranged on a substrate, and the semiconductor layer is internally provided with a drift region of a first doping type; the groove enters the semiconductor layer from the surface of the semiconductor layer and is positioned in the drift region; the buffer layer is arranged on the surface of the inner wall of the groove, and a filling cavity is formed in the groove in the buffer layer; the buffer layer and the semiconductor layer contain the same first element, and the buffer layer further contains at least one second element different from the first element. According to the invention, material diffusion between materials inside and outside the trench can be effectively controlled, and the characteristic resistance of the drift region is further reduced, so that a finer and more stable voltage-withstanding characteristic is provided.

The utility model relates to a dust discharging and collecting device and a dust removing system. The dust discharging and collecting device comprises a support, a weighing sensor, a collecting bin, a dust collecting pipe and a diaphragm pump. The weighing sensor is arranged at the bottom of the bracket; the collecting bin is arranged at the top of the support and comprises an internal cavity, a connecting port is formed in the side face of the collecting bin and connected with a dust discharging port of the pulse bag-type dust collector through a dust collecting pipe, and an output port is formed in the bottom of the collecting bin; the diaphragm pump is arranged on one side of the support, a feeding port of the diaphragm pump is connected with the output port, and a discharging port of the diaphragm pump is connected with a discharging pipe. The dust discharging and collecting device can be used for collecting dust generated after the pulse bag-type dust collector performs pulse blowing dust removal, and automatically discharging the dust to a preset position to be collected and treated after the dust is collected to a certain degree, so that the labor intensity of workers is reduced, the dust treatment efficiency is also improved, and the labor intensity of workers is reduced. And meanwhile, the possibility that dust escapes to pollute the surrounding environment is reduced.

The utility model relates to the technical field of smashing equipment, and discloses a medicine smashing machine which comprises a smashing bin, a feeding assembly is arranged at the top of the smashing bin, a motor is fixedly connected to the outer wall of the smashing bin, a driving wheel is fixedly connected to the output end of the motor, a driven wheel is rotationally connected to the interior of the smashing bin, and the driven wheel is fixedly connected to the output end of the motor. The driving wheel is meshed with the driven wheel, crushing rollers are fixedly connected to the interiors of the driving wheel and the driven wheel, one end of each crushing roller is fixedly connected with a first concave wheel, and a first transmission belt is arranged on the outer wall of each first concave wheel. According to the utility model, firstly, the motor drives the driving wheel to rotate to be matched with the driven wheel to enable the two crushing rollers to synchronously rotate, so that the problem that the ideal crushing effect cannot be achieved due to difficulty in realizing multi-stage grinding is solved, the efficient multi-stage grinding is realized, the crushing efficiency and the product of the medicine crusher are improved, and meanwhile, the grinding can be realized by only one motor; and the operation energy consumption of equipment is reduced, and the production cost is saved.

This utility model relates to an aerosol adsorption and protection device for instrument drying, comprising an upper cover and a lower chamber, which are sealed together by a sealing assembly to form a closed cavity. The lower chamber is equipped with a mounting mesh assembly and a drive assembly. Below the mounting mesh assembly within the closed cavity, a first filter layer for adsorbing moisture, a second filter layer for adsorbing aerosols, and an exhaust pipe are sequentially arranged. This device is ingeniously designed; the upper cover, sealed together with the lower chamber, forms a closed cavity, effectively isolating aerosol diffusion during the drying process. The device includes a rotatable mounting mesh assembly for fixing and rotating the instrument, thereby improving drying efficiency or the contact area between the instrument and the airflow. Below the mounting mesh assembly, the first filter layer for adsorbing moisture and the second filter layer for adsorbing aerosols are sequentially arranged, achieving simultaneous adsorption and treatment of aerosols during the drying process. This device has a compact structure, good sealing performance, and high aerosol adsorption efficiency, making it suitable for medical, laboratory, and other applications.

This invention discloses an air supply device assembly, including an air duct assembly and an air outlet assembly for generating airflow. The air duct assembly includes a front frame, a middle frame, and a rear frame for forming the air duct. The rear frame forms an air inlet on one side of the middle frame, and the front frame forms an air outlet on the other side of the middle frame. The middle frame is closed around the air duct, and a funnel-shaped air guide portion is formed on the middle frame corresponding to the air inlet. Multiple air guide grooves are formed on the air guide portion in the circumferential direction. The air guide grooves are arranged with respect to the airflow path. The air guide portion and the air guide grooves limit the airflow path in the air duct and constrict the airflow at the air outlet, thereby increasing the air outlet effect.

The invention is suitable for the technical field of cotton cultivation, and provides an efficient cotton dripping seedling raising method which comprises the following steps: step 1, variety selection and seed preparation; step 2, land preparation; step 3, preparation before sowing; step 4, sowing operation; 5, drip seedling emergence and seedling stage management; 6, middle and later period field management; step 7, harvesting and post-processing. Good growth and high yield of cotton can be guaranteed by selecting a high-quality high-yield variety adapting to the local environment and improving the soil structure; advanced sowing machinery and technology are adopted, so that uniform sowing and reasonable covering of seeds are ensured, and the emergence rate and the seedling quality are improved; water dripping and fertilization are reasonably arranged according to cotton growth requirements, so that water and nutrient supply balance is ensured, and healthy growth is promoted; through regular monitoring and adoption of various prevention and control measures, occurrence and diffusion of diseases and pests are effectively controlled, and the method is of great significance to improvement of the overall level of the southern Xinjiang cotton planting industry.

The utility model discloses a dust treatment device for a biological bacterial fertilizer raw material mixing process, and relates to the technical field of dust treatment. The device comprises a U-shaped bin, a fan cover is fixedly arranged in the middle of the top of the U-shaped bin, an exhaust fan is installed on the top of the fan cover, and a flow guide pipe is communicated between the air inlet end of the exhaust fan and the top of the U-shaped bin; and the hollow columns surround the outer side of the U-shaped bin at equal intervals, the upper sides of the hollow columns communicate with the U-shaped bin through connecting pipes, and air inlet holes are evenly distributed in the middles of the outer walls of the hollow columns. Through the design of the hollow column and the dust blocking assembly, the periphery and corners of equipment can be effectively covered, dust is comprehensively treated, negative pressure is generated in the hollow column through the exhaust fan, air around the equipment flows into the hollow column, and therefore flying dust is sucked into the hollow column, and the dust blocking effect is achieved. And the active carbon rod movably arranged in the hollow column can adsorb entering dust, so that secondary diffusion of the dust is effectively prevented.

The invention relates to the technical field of indoor decoration, and discloses a wall surface grooving device and method.The wall surface grooving device for indoor decoration construction comprises a wall surface grooving unit, and the wall surface grooving unit comprises an operation bin, a cutting bin arranged on one side of the operation bin and a first grip arranged at one end of the cutting bin; the second grip is arranged on the side, away from the cutting bin, of the operation bin, the grooving component is arranged on the cutting bin, and the auxiliary moving component is arranged on the operation bin. According to the wall surface grooving device for indoor decoration construction, a pulley on a positioning insertion rod is driven by resilience force of a first reset spring to be inserted into a groove formed in advance, then when a cutting blade is slowly moved downwards to conduct grooving, the pulley can move in a formed groove opening, meanwhile, an operation bin and a cutting bin can be limited in an auxiliary mode, and the operation bin and the cutting bin are not prone to falling off. The perpendicularity and stable propelling of the rotating cutting blade are kept, and skewing of a notch is prevented.

The invention discloses a blasting dust falling system and method. The blasting dust falling system comprises a blasting module, a dynamic water mist module, a movable water spraying module and a control module. The blasting module is used for blasting operation of a blasting area; the dynamic water mist module is used for generating dust suppression water mist; the movable water sprinkling module is used for moving to different areas and sprinkling water to adjacent areas; the control module is electrically connected with and controls the blasting module, the dynamic water mist module and the movable watering module. The dust falling method is based on the blasting dust falling system. According to the blasting dust falling system and the dust falling method, the dynamic water mist module is matched with the movable water spraying module, dust falling operation is achieved, and dust raising and diffusion caused by blasting operation are controlled. The control module is used for controlling the functional modules, unattended intelligent blasting and dust falling are achieved, manual participation is reduced, intelligence is improved, and automatic operation is achieved.

The utility model provides a scarifier for agricultural greenhouse vegetable planting, and relates to the technical field of scarifiers, the scarifier comprises a body mechanism, the top of the body mechanism is fixedly connected with a scarifying mechanism, the body mechanism comprises a scarifier main body, the top of the scarifier main body is provided with a sliding groove, and two sliding blocks are embedded in the inner surface wall of the sliding groove in a sliding mode; and a positive and negative tooth screw rod is in threaded connection between the inner surface walls of the two sliding blocks. According to the utility model, under the mutual cooperation of the machine body mechanism and the soil loosening mechanism, the soil loosening height of the equipment can be flexibly adjusted so as to adapt to the specific requirements of different greenhouse vegetable varieties and growth stages on soil depth, and the soil loosening roller is driven to rotate at a high speed through the driving motor; the multiple groups of crushing blades can effectively crush and loosen the soil, so that the purposes of optimizing the soil structure and improving the air permeability and water retention of the soil are achieved, and a more ideal soil environment is created for the growth of vegetables.

The present invention belongs to the technical field of intelligent monitoring and remote sensing mapping, and proposes a method for identifying invasion areas in mangrove ecological areas based on hyperspectral images, collects spectral cubes of mangrove ecological areas, grids the mangrove ecological areas to form grid units, maps the grid units to spectral cubes, reads spectral angle binaries of grid units from spectral cubes, performs time series differential analysis on spectral angle binaries to form invasion analysis values, and obtains invasion measurement results according to the invasion analysis values. The method uses hyperspectral imaging technology to accurately monitor the growth density and distribution of niche-occupying plants, identifies microscopic changes in plant growth and achieves early warning, predicts and identifies the occurrence of plant diffusion to reduce the risk of local ecological damage to mangroves, provides data support for the long-term management and protection of mangrove areas, and promotes the health and stability of the ecosystem.

The invention discloses a large-current high-breaking plug-in circuit breaker, comprising a moving contact, a stationary contact, an arc extinguishing chamber, an arc-strike assembly and an arc-guiding acceleration structure arranged on a shell structure. The arc-strike assembly is arranged on both sides of an arc-entry opening in the length direction of the arc-extinguishing chamber. The arc-guiding acceleration structure comprises a magnetizing assembly arranged on both sides of the arc-entry opening in the width direction, and an arc-guiding channel surrounding the moving and stationary contacts, which is formed by connecting the magnetizing assembly, the arc-strike assembly and the shell structure. The cross-sectional width of the arc-guiding channel gradually decreases from the arc-entry opening to the moving contact side. The arc is further accelerated to move in the direction of the arc-entry opening by forming an air pressure difference in the arc-guiding channel and by the magnetic blowing effect of the magnetizing assembly on the arc. The arc-strike efficiency is high and the cooling of the arc can be accelerated by the combined effect of the arc-guiding channel and the magnetizing assembly, thereby avoiding the burning of other parts such as the contacts by the arc, and improving the electrical life and breaking capacity of the circuit breaker.

The utility model provides a positive-pressure air supply structure for a transition room of a household garbage incineration power plant, which can maintain the pressure of the transition room to be stable and carry out ventilation to realize deodorization and dilution of residual odor on passing personnel. In a household garbage incineration power plant, a transition room is arranged between a garbage unloading hall or a garbage pool and a walkway leading to each room; the air supply inlet is formed in the aisle, the air supply outlet is formed in the transition room, the air supply inlet is connected with an inlet of the pressurized air feeder, and an outlet of the pressurized air feeder is connected with the air supply outlet; the air supplementing air inlet is formed outdoors, the air supplementing air outlet is formed in the aisle, the air supplementing air inlet is connected with an inlet of the air supplementing machine, and an outlet of the air supplementing machine is connected with the air supplementing air outlet; the exhaust air inlet is formed in the transition room, the exhaust air outlet is formed in the discharging hall, the exhaust air inlet is connected with an inlet of the exhaust fan, and an outlet of the exhaust fan is connected with the exhaust air outlet.

The utility model discloses a conveying device for a cement production line, and relates to the technical field of cement conveying, the conveying device for the cement production line comprises the conveying device for the cement production line, and retarding baffles are uniformly distributed on the outer side surface of a transmission assembly. The falling speed of cement materials is further slowed down through the slowing-down baffle, the situation that the cement materials are too dense or too thin is avoided, stability and uniformity in the conveying process are guaranteed, the falling speed of the cement materials is further slowed down through the slowing-down baffle, impact force and airflow disturbance generated when the cement materials fall from a high place are effectively reduced, and the conveying efficiency is improved. The cement materials slide into the second feeding cavity through the first feeding cavity to ensure that all the cement materials fall onto the retarding baffle, and then the retarding baffle uniformly conveys the cement materials to the conveying belt in batches, so that the situation that a large amount of cement materials fall onto the conveying belt at a time to cause blockage or non-uniformity is avoided, and the conveying efficiency is improved. And the production efficiency and the production quality are improved.

The present application discloses a content recommendation method, device and computer-readable storage medium in the field of communication technology involved; the method can obtain a content multi-dimensional feature vector of the target content based on the target content and the user-related information providing the target content, the content multi-dimensional feature vector includes the feature information of the target content and the user-related information providing the target content; extract features of at least two interactive related information of the target content to obtain at least one interactive situation representation vector of the target content, wherein at least one interactive situation representation vector can be realized based on the natural language processing technology in the field of artificial intelligence; fuse the content multi-dimensional feature vector and at least one interactive situation representation vector to obtain a fused vector; classify the target content based on the fused vector to obtain a content classification result of the target content; and recommend the target content based on the content classification result. The present application can improve the accuracy of content recommendation.