263results about How to "Extended duration" patented technology

The invention discloses a fan cooling system, a control method and an inverter. The fan cooling system comprises a fan assembly, a controller, a power source, a radiator, a shell, a temperature monitoring module and a cover body. The rotating direction of the fan is changed in a specific mode, forward rotation and reverse rotation of the fan are achieved, accordingly, the airflow direction is changed, dust and sundries on the fan and the radiator can be automatically cleaned, the normal working time of a heat dissipation system is prolonged, the manual maintenance cost is reduced, and the product reliability is improved.

The invention relates to an energy management module, system and method. The energy management module comprises a photovoltaic productivity prediction layer, a system energy management optimization scheduling layer and an equipment optimization control layer. The photovoltaic productivity prediction layer establishes a multi-time scale photovoltaic productivity prediction model based on meteorological data and equipment operation state parameters; outputting a photovoltaic productivity prediction result based on the model; the system energy management optimization scheduling layer establishes an intra-day real-time rolling optimization scheduling model based on a photovoltaic productivity prediction result, equipment operation parameters and equipment running state parameters, and outputs a power distribution result of an electrolytic cell and an energy storage battery module; and the equipment optimization control layer establishes an electrolytic hydrogen production equipment and energy storage battery equipment prediction model based on the power distribution result, the equipment operation parameters and the equipment operation state parameters, so that target operation parameters are determined, and the electrolytic hydrogen production equipment and the energy storage battery equipment are regulated and controlled based on the target operation parameters.

The invention discloses a carbon fiber bicycle hub coating-free hot stamping device and a coating-free hot stamping process, and belongs to the field of hub coating-free hot stamping, the carbon fiber bicycle hub coating-free hot stamping device comprises a working table, a mounting plane is arranged on the working table, a feeding table for bearing a carbon fiber bicycle hub is detachably arranged on the working table, and the feeding table is provided with a discharging port for discharging the carbon fiber bicycle hub. A baffle is detachably arranged on the feeding table. According to the coating-free hot stamping device and the coating-free hot stamping process for the carbon fiber bicycle hub, through combination of the follow-up blowing component and the follow-up inserting component, hot stamping operation on the carbon fiber bicycle hub can be effectively and synergistically assisted, so that when the hot stamping component conducts hot stamping on the carbon fiber bicycle hub, the carbon fiber bicycle hub is prevented from being damaged, and the carbon fiber bicycle hub is prevented from being damaged. The situation that the follow-up air blowing component and the follow-up inserting component are used at the same time when the hot stamping component moves downwards is avoided, the stability of hot stamping is improved, the follow-up air blowing component and the follow-up inserting component can be promoted to be used at the same time every time the hot stamping component moves downwards, and the overall maintenance difficulty of equipment is lowered.

The invention belongs to the technical field of luminescent materials, and particularly relates to a luminescent material, an anti-counterfeiting optical thin film and a preparation method thereof. The chemical general formula of the luminescent material is SrGa < 12-x > Mn < x > O < 19 > / Ga < 2 > O < 3 >, and x is equal to 0.025 to 0.035. The preparation method of the anti-counterfeiting optical thin film comprises the following steps: uniformly mixing a luminescent material, a PDMS polymer and a curing agent to obtain colloid, and curing to obtain the optical thin film, the mass ratio of the luminescent material to the PDMS polymer is 1: (0.65-1.5), and the mass ratio of the PDMS polymer to the curing agent is (9-10): 1. The invention overcomes the defects that inorganic fluorescent powder in the prior art only has one light-emitting mode of photoluminescence, is poor in anti-counterfeiting effect and is easy to counterfeit.

The invention relates to the field of surgical esophagus medicine applying, in particular to an esophagus medicine applying system applied to the gastroenterology department, comprising: a medicine injection module comprising a nozzle and an image acquisition assembly; the conveying module comprises a medicine conveying pipe, a flow velocity sensor, a gas flow velocity sensor and a conveying pump; the model construction module is used for generating a three-dimensional model of the esophageal wound surface according to the image of the esophageal wound surface; the control module is used for determining an esophageal peristalsis mode according to the esophageal wound surface three-dimensional model, determining a spraying mode according to the peristalsis mode, including determining a medicine spraying pressure according to a gas flow rate in the esophagus, or determining a medicine spraying distance according to an esophageal liquid flow rate of the esophageal wound surface of a patient, and determining a medicine spraying distance according to the medicine spraying distance. And re-determining the medicine injection distance according to the medicine distribution area of the esophageal wound surface. According to the invention, the accuracy and efficiency of surgical esophageal wound treatment are improved.

Provided are a communication method, a terminal device, a network device and a core network device, the communication method comprising: a terminal device sending a first request message to a first network device, the first request message being used for instructing the first network device to configure a first time interval; the terminal device comprises an LR and an MR, the LR is used for monitoring a paging notification sent by a second network device, the paging notification is used for indicating that there is a paging message sent by the second network device on a later PO, and the MR is used for receiving the paging message within the first time interval. Based on the cooperative work of the LR and the MR, the paging notification is monitored through the LR, and the paging message is received through the MR when the paging message is monitored, so that the power consumption of the terminal equipment is reduced, the duration of data transmission between the terminal equipment and the first network equipment through the MR is prolonged, the influence on the data transmission between the terminal equipment and the first network equipment is reduced, and the user experience is improved. The data transmission quantity is increased, and the throughput is improved.

The present invention discloses a fireproof steel structure for construction, which belongs to the technical field of building materials. A fireproof steel structure for construction, comprising a fireproof steel body, characterized in that a fireproof coating is provided on the outer surface of the fireproof steel body, a thermal insulation layer is provided on one side of the fireproof coating, a cavity pipe is provided inside the fireproof steel body, a spray pipe is provided on the outer surface of the fireproof steel body, and a first spray head is fixedly connected to one side of the spray pipe; the present invention can effectively prevent fire and resist high temperature by providing a fireproof coating, a thermal insulation layer and a cavity pipe, thereby increasing the fire resistance time, providing precious time for disaster relief and fire fighting, avoiding the deformation of the steel structure due to the failure to put out the fire in time, ensuring the structural safety of the factory building, and thus effectively reducing the loss, and can generate flowing water by providing a spray pipe and a connecting pipe.

The invention belongs to the technical field of transformers, and particularly relates to a voltage transformer which comprises a protection mechanism, a main body assembly, a circulation mechanism, a heat exchange mechanism, a ventilation mechanism and a dust falling mechanism. The protection mechanism comprises a protection cabin and a protection ceiling arranged above the protection cabin; the main body assembly comprises a containing shell and a coil shell, the coil shell is fixedly installed on the inner wall of the containing shell, and the containing shell is arranged in the protection cabin; the circulating mechanism is used for controlling the insulating oil in the accommodating shell to flow circularly; the heat exchange mechanism comprises an installation shell, a heat exchange box, a control piece and a heat exchange plate, the installation shell is fixedly installed on the outer wall of the containing shell, the heat exchange box is fixedly installed in the installation shell, and the circulation mechanism controls the insulating oil to pass through an inner cavity of the heat exchange box when flowing; through cooperation of the structure, on one hand, water drops are attached to the outer wall of the heat exchange plate, the heat dissipation efficiency is improved, and meanwhile, dust attachment can be effectively prevented through flowing of the water drops, and the heat dissipation efficiency is kept.

The invention relates to the technical field of machine vision detection, in particular to an angle detection device based on machine vision. Comprising a detection device body, a film pasting mechanism and a film feeding mechanism, the detection device body comprises a detection camera, a mounting frame and a dustproof glass cover, the detection camera is fixedly mounted on the mounting frame, the dustproof glass cover is arranged on the outer side of the detection end of the detection camera in a sleeving mode, and the dustproof glass cover is fixedly mounted on the mounting frame; and the film pasting mechanism comprises a first pushing assembly, a film uncovering assembly, a cleaning assembly and a pasting assembly, the first pushing assembly is installed on the installation frame, and the allowance automatic detection assembly is installed on the film feeding assembly. According to the invention, the continuous use duration of the detection camera can be greatly improved, the definition and precision of visual detection are maintained while continuous work is carried out, the application range is wide, an operator does not need to frequently enter a working area with high dust content to carry out wiping, replacement and other operations, and the working safety is improved.

The invention provides a carbon dioxide absorption system and an absorption method. The absorption system comprises: an absorption tower for absorbing carbon dioxide in flue gas to obtain an amine-rich solution; the lean and rich liquid heat exchanger is used for carrying out heat exchange on the rich amine liquid and the lean amine liquid to obtain hot rich amine liquid and cold lean amine liquid; the regeneration tower is used for removing carbon dioxide in the hot amine-rich liquid to obtain a lean amine liquid; the iron ion detector is used for detecting the content of iron ions in the cold lean amine liquid; and the iron ion adsorber is used for adsorbing iron ions in the cold lean amine solution. Through the arrangement of the iron ion detector and the iron ion adsorber, the catalytic degradation degree in the operation process of the two-phase amine absorbent is reduced, so that the operation stability and duration of an absorption system are improved, and the absorption efficiency of carbon dioxide is improved.

The invention provides a self-replicating mRNA molecular combination and application thereof, the self-replicating mRNA molecular combination comprises a first mRNA molecule for coding a self-replicating enzyme, and the first mRNA molecule comprises an ORF sequence for coding the self-replicating enzyme; and, at least one second mRNA molecule encoding a protein of interest. According to the self-replicating mRNA molecular combination, a nucleotide sequence of a functional region is reasonably optimized, so that a first mRNA molecule for coding replicase protein has a relatively high yield, and a second mRNA molecule for coding a target gene is further efficiently and massively replicated, so that the self-replicating mRNA molecular combination has a longer half-life period, the existence duration and the yield of the target protein are greatly improved, and the self-replicating mRNA molecular combination has a good application prospect. And a wide application prospect is provided. The self-replicating mRNA molecular combination can be used for preparing a pharmaceutical composition for treating, diagnosing or preventing diseases.

The utility model discloses an intelligent ankle pump movement massage instrument which comprises a control instrument, two air pressure leg sleeves, a connecting part used for connecting the control instrument and the air pressure leg sleeves, a rotating motor arranged on the air pressure leg sleeves, a rotating frame connected with the output end of the rotating motor and a mounting frame arranged on the rotating frame. The device comprises a mounting frame, a driving part located on the mounting frame, a foot boot connected with the driving part, and a massager and a heater arranged on the foot boot, the device can massage the foot sole of a patient and heat the foot of the patient at the same time through the arranged massager, and during operation, in combination with foot sole massage, meridian conditioning and constant-temperature heating can be achieved, so that the patient feels comfortable; meanwhile, blood circulation is further promoted; meanwhile, limb injury caused by dysphoria of the patient can be prevented through the air bag arranged in the air pressure leg sleeve, the femoral vein blood flow peak velocity is increased through the lower limb muscle pump combined with the negative pressure effect of the thoracic cavity, the lower limb vein blood return volume is increased, and lower limb deep vein thrombosis is effectively prevented.

The invention discloses a corrosion-resistant coating and a testing device, and relates to the field of coatings, the corrosion-resistant coating comprises a corrosion-resistant testing cabin, a top cover is mounted at the top of the corrosion-resistant testing cabin, a partition plate is fixedly mounted in the corrosion-resistant testing cabin, and two fixing plates are symmetrically mounted on the two sides of the partition plate in the corrosion-resistant testing cabin front and back; two clamping blocks are rotationally mounted at the positions, close to the two sides, of the top of the fixing plate, first springs are fixedly connected between the clamping blocks and the fixing plate, experiment plates are arranged at the positions, located on the two sides of the partition plate, in the corrosion resistance testing cabin, and the experiment plates are matched with the clamping blocks in an adaptive mode; sliding grooves are formed in one side of the partition plate and the two sides of the corrosion-resistant testing cabin in a penetrating mode, spraying rods are installed in the three sliding grooves in a sliding mode, spraying rotating structures are arranged on the two sides of the corrosion-resistant testing cabin, and by arranging the spraying rotating structures, the uniform spraying effect can be provided.

According to the machine tool measuring device and the measuring method thereof, the measuring device comprises an external hanging type main body frame, a measuring probe, a driving mechanism and a protection mechanism, the driving mechanism is installed on the main body frame and used for driving the measuring probe to move, the protection mechanism is used for protecting the measuring probe, and the protection mechanism comprises a retractable door capable of being opened in a sliding mode. The measuring probe comprises a probe which can extend out of the telescopic door, the protection mechanism can effectively protect the measuring probe, a rodless cylinder is adopted as a power source of the driving mechanism, so that the structure is more compact, a probe rod is made of carbon fibers, the measuring device is lighter, and the driving mechanism can quickly drive the measuring probe to measure. The machining efficiency is improved, the overall time is shortened, and the machining rhythm is accelerated.

The invention discloses an intelligent water meter communication method and system for a multi-meter centralized reading system, and belongs to the technical field of intelligent water meters, and the method specifically comprises the steps: designing and building an intelligent water meter communication network, enabling each household intelligent water meter in a community to be connected to the intelligent water meter communication network, and carrying out the communication of the intelligent water meters according to a preset time interval; the method comprises the following steps of: periodically acquiring water consumption data of an intelligent water meter of each household in a community, transmitting the acquired water consumption data to a central server through an intelligent water meter communication network by utilizing a data communication strategy, compensating noise influence during water consumption data transmission, calculating transmission energy consumption of the intelligent water meter communication network, and selecting an optimal network communication channel; and the central server processes and analyzes the transmitted water consumption data, judges whether the pipeline leaks or not according to a data analysis result, carries out corresponding control and repair measures, and monitors the state and data change of the intelligent water meter of each household in a community in real time through a communication network.

The present invention provides a hyaluronic acid composite gel for tear groove filling and a preparation process thereof, wherein the composite gel is cross-linked by medium molecular weight sodium hyaluronate, low molecular weight sodium hyaluronate and recombinant collagen, wherein the mass percentage of medium molecular weight sodium hyaluronate and low molecular weight sodium hyaluronate in the composite gel is 1.2-2.0%, the mass percentage of recombinant collagen in the composite gel is 0.4-0.7%, and the remainder of the composite gel is phosphate buffer. The preparation method is cross-linked by physical means of rapid heating-insulation-rapid cooling. The composite gel of the present invention, through the coordination of medium molecular weight sodium hyaluronate, low molecular weight sodium hyaluronate and recombinant collagen, can prolong the duration of the filling effect while ensuring the filling effect, effectively avoid the occurrence of the Tyndall effect, have high safety, and can also repair and supplement skin nutrition; no cross-linking agent is required, and there is no residual risk.

The invention provides a diamond thick film and a preparation method thereof, and the preparation method comprises the following steps: (1) electrifying and heating the surface of a substrate by using a hot filament, introducing a methane and hydrogen mixed gas with the methane volume content of 2-8%, and depositing diamond on the surface of the substrate; (2) after the single deposition thickness of the diamond reaches 50-150 microns, stopping introducing the methane, and maintaining for 0.5-20 hours in a hydrogen atmosphere; (3) introducing a methane and hydrogen mixed gas with the methane volume content of 2-8%, and continuously depositing the diamond; (4) after the single deposition thickness of the diamond reaches 50-150 microns, stopping introducing the methane, and maintaining for 0.5-20 hours in the hydrogen atmosphere; and (5) according to the required thickness of the diamond thick film, the step (3) and the step (4) are repeated, the diamond thick film is obtained, and the thickness is 600-2500 microns. According to the method, the diamond phase content in the diamond thick film is increased, and the mechanical and thermal properties of the diamond thick film are improved.

The invention relates to a troubleshooting method and system for a data center, a terminal and a storage medium, and belongs to the technical field of data processing.The troubleshooting method comprises the steps that a fault patrol track is constructed according to the number and positions of devices in the data center; controlling a patrol camera to perform periodic patrol on the equipment according to the fault patrol track; acquiring a patrol video stream collected by a patrol camera in a patrol process; judging whether the data center is abnormal or not according to the patrol video stream; and if yes, positioning an abnormal position, and sending alarm information. In addition to monitoring of operation data in the equipment, the inspection camera can be controlled to perform periodic inspection according to a fault inspection track by constructing the fault inspection track, so that whether the data center is abnormal or not is judged according to the obtained inspection video stream, the abnormal position is positioned, and alarm information is sent. Therefore, the monitoring comprehensiveness of the data center is improved, and the fault position can be positioned in time.

The invention relates to a method for processing a layer element, said layer element having at least one main body with an underside and an upper side opposite the underside; the invention relates to a method for manufacturing a substrate, comprising a substrate, an upper side, a cover layer which is at least partially permeable to visible light, and at least one adhesive layer which is arranged between the cover layer and the upper side, the adhesive layer being heated to an adhesive layer temperature and the lower side of the substrate being cooled to a lower side temperature.

The invention provides a respiratory training method for rapid recovery of lung functions after general thoracic surgery, and belongs to the technical field of medical rehabilitation, the respiratory training method for rapid recovery of lung functions after general thoracic surgery comprises the following steps: performing preoperative evaluation, measuring parameters such as vital capacity, making a personalized training plan in combination with age, basic diseases and operation types, and establishing a personalized training plan for rapid recovery of lung functions after general thoracic surgery; the method is divided into an early stage, a middle stage and a later stage, and abdominal respiration and lip contraction respiration training is carried out in the early stage; in the middle stage, deep respiration and excitation type spirometer training are increased; resistance breathing and breathing exercise training is conducted in the later stage, parameters such as breathing frequency and subjective feeling of patients are closely monitored in the training, the training intensity and method are adjusted according to conditions, accurate training can be conducted according to individual differences of the patients, the lung function rehabilitation efficiency is effectively improved, complications are reduced, and the life quality of the patients is improved. The device is suitable for general thoracic surgery postoperative patients.

The invention provides a compound insecticide composition as well as a preparation method and application thereof, and belongs to the technical field of agricultural insecticides. The compound insecticide composition comprises an effective component and an auxiliary component, the effective component is composed of methoxypiperidine ethyl ester and Benzpyrimoxan, and the weight ratio of methoxypiperidine ethyl ester to Benzpyrimoxan is (5: 1)-(1: 10). The composition has an obvious synergistic effect and has the advantages of low cost, good pesticide effect, long lasting period, small environmental pollution and the like.

The invention provides glass lining distillation equipment, and belongs to the technical field of distillation separation equipment.The glass lining distillation equipment comprises a distillation cylinder, a condenser, a rotating support, a liquid spraying assembly and a first driving part used for driving the rotating support to rotate, a rotating rod of the first driving part penetrates through the top of the distillation cylinder, and the rotating support is vertically arranged; a plurality of telescopic rods moving in the horizontal direction are installed on the rotating support through elastic pieces, a vertically-arranged film distributing roller is rotationally connected to the telescopic rods, abutting rollers used for abutting against the inner wall of the distillation cylinder are installed at the two ends of the film distributing roller, a spiral groove used for driving liquid to move upwards is formed in the film distributing roller, and the spiral groove is spirally formed upwards around the film distributing roller; according to the device, the duration of a mixed solution staying on the inner wall of the distillation cylinder can be prolonged through the spiral groove spirally extending upwards in the film distribution roller, so that light molecules in the mixed solution are fully separated.

The present application provides a photovoltaic cleaning drone and a photovoltaic cleaning system. The photovoltaic cleaning drone includes a drone structure and a cleaning chassis structure, and the cleaning chassis structure includes a mounting frame, a liquid chamber, a crawler walking mechanism, a walking drive mechanism, a roller brush mechanism, a spray mechanism and a scraper; the liquid chamber is fixed above the mounting frame for containing cleaning liquid; the crawler walking mechanism is arranged on the left and right sides of the mounting frame; the walking drive mechanism is arranged below the mounting frame and connected to the crawler walking mechanisms on both sides to drive the crawler walking mechanism; the roller brush mechanism is arranged on the front side of the mounting frame for cleaning photovoltaic panels; the spray mechanism is arranged on the front side of the mounting frame and connected to the liquid chamber for spraying the cleaning liquid to the photovoltaic panels in the forward direction of the cleaning chassis structure; the scraper is arranged on the rear side of the mounting frame for scraping off the cleaning liquid on the photovoltaic panels. The photovoltaic cleaning drone has the characteristics of good passing performance, strong cleaning ability and strong endurance.

The utility model discloses a coating cooling mechanism, which belongs to the technical field of coating cooling and comprises a cooling box, a conveying pipe is arranged in the cooling box, a feeding pipe is fixedly embedded in the upper surface of the cooling box, the bottom end of the feeding pipe is fixedly communicated with the top end of the conveying pipe, a discharging pipe is fixedly embedded in the left side face of the cooling box, and the discharging pipe is fixedly communicated with the conveying pipe. The right end of the discharging pipe fixedly communicates with the bottom end of a conveying pipe, a refrigerator is fixedly embedded in the left side face of the cooling box, through the arrangement of the conveying pipe, paint conveying is facilitated, the duration of the paint in water flow can be prolonged, the effect of paint conveying and cooling is achieved, and the working efficiency of the device is improved; according to the device, the position change of water flow in the cooling box can be conveniently monitored, the phenomenon that the cooling effect of the device is reduced due to the fact that the position drop of the water flow is low is avoided, and the water flow in the cooling box can be cooled by arranging the refrigerator, so that the cooling effect of the water flow is guaranteed.

The invention provides a log management method and system, electronic equipment and a storage medium, and belongs to the technical field of computers.The method comprises the steps that a problem identification file generated by a local terminal is obtained; executing a filtering operation on the obtained question identification file, and screening out questions needing to be laded to construct a lading question set; searching error modification content related to the lading bill problem set in a preset code library, and arranging the error modification content into an error bill; searching error information related to the lading bill problem set in an external network and sorting out effective information in the error information; carrying out additional processing on a specific type of question, and integrating a processing result with the error bill and the effective information to generate a bill-of-lading content; and feeding back the integrated lading bill content to the local terminal. The method has a lading function, and can improve analysis accuracy and processing efficiency and enhance system maintainability.

The application relates to the computer technical field, in particular to a page processing method and device, electronic equipment and storage medium, adopting a standard language, converting at least one original jump component based on an original language contained in an original application page into corresponding target jump components respectively; determining page jump indication information between the original application page and each other application page based on the at least one original jump component; adopting the standard language, converting at least one original page element based on the original language into corresponding target page elements based on the element conversion mode corresponding to each original page element contained in the original application page; and sending the obtained at least one target jump component, page jump indication information and at least one target page element to the search server for associated storage. In this way, the richness of search results can be improved.

The invention discloses a brewing method of foaming sake, which is characterized by comprising the following steps: raw material treatment, liquefaction, saccharification, primary adsorption, secondary adsorption, primary sterilization, fermentation, sealed fermentation and secondary sterilization. The liquefaction comprises the following steps: mixing glutinous rice flour, beta-cyclodextrin and water, stirring at room temperature for 20-30 minutes, adding high-temperature-resistant alpha-amylase, and carrying out spray liquefaction; the primary adsorption comprises the following steps: adding activated carbon and beta-cyclodextrin into the saccharification product, stirring for 30-40 minutes at room temperature, then standing for 5-6 hours at room temperature, and filtering; the secondary adsorption comprises the following steps: adding mixed activated carbon into the primary adsorption liquid, stirring for 30-40 minutes at room temperature, then standing for 7-8 hours at room temperature, and filtering. The brewed foaming sake is high in light transmittance, good in taste, rich in fragrance and short in fermentation time, and does not need to be stored at low temperature.

The invention relates to the technical field of chemical experiment appliances, in particular to a water segregator for an organic chemical experiment, a piston is arranged in a sleeve, a connecting rod is fixedly arranged on the piston, a liquid taking pipe is inserted into the side wall of the sleeve and arranged below the piston, a plurality of separation and filtration membranes are arranged, and the sleeve is communicated with the separation and filtration membranes through a liquid separation mechanism. The driving mechanism and the connecting rod are in transmission arrangement, and the driving mechanism is connected with the liquid separation mechanism through the transmission mechanism; according to the water diversion device, the adjustable diversion structure is arranged, so that to-be-treated liquid is conveyed into the treatment equipment connected in parallel to be treated, water diversion treatment on the liquid in a small-batch and multi-batch manner is realized, and water diversion treatment on a reagent is quickly and thoroughly realized.

The application relates to the technical field of powder production and processing equipment, in particular to a flow guide device for airflow mill pulverization and a pulverizer adopting the flow guide device, wherein the flow guide device for airflow mill pulverization comprises a device body, a flow guide area, a collection area and a drainage area are formed in the device body, and the collection area and the drainage area are distributed around the flow guide area; when the device body is matched with a pulverization cavity and the pulverization cavity is in a working state, airflow sprayed from a nozzle flows to the lower part of the collision area after collision in the middle of a pulverization area and then flows into the flow guide area and the drainage area in sequence; the collection area collects coarse particles sinking downwards, the collection area is formed with an opening, coarse particles in the collection area can flow out through the opening, the flowed-out coarse particles can flow into the drainage area together with airflow and flow out of the drainage area; the flowing direction of airflow flowing out of the drainage area is towards the top of the pulverization cavity. The flow guide device for airflow mill pulverization can improve powder preparation efficiency and improve the vortex state at the bottom of the pulverization cavity.

The invention provides a blasting vibration simulation wave optimization method and system, and the method comprises the steps: obtaining a blasting vibration actual measurement waveform and an initial model parameter, inputting the initial model parameter to a pre-constructed single-hole blasting vibration prediction model, and obtaining an output waveform; and acquiring optimal model parameters by adopting a plurality of experimental design methods based on the actually measured waveform and the output waveform, and outputting an optimized blasting vibration simulation wave according to the optimal model parameters. According to the blasting vibration simulation wave optimization method provided by the invention, blasting vibration waves with relatively high field fitting degree can be quickly generated, the output peak vibration velocity, duration and dominant frequency have relatively high goodness of fit with field actually measured waveforms, and based on theoretical derivation, the inaccuracy caused by dependence on empirical formulas in the prior art is overcome.