Steelmaking method for reducing comprehensive lime consumption through converter rapid slagging under high iron consumption

The invention discloses a steelmaking method capable of rapidly slagging in a converter and reducing comprehensive lime consumption under high iron consumption, belongs to the technical field of converter steelmaking, and solves the technical problems of realizing converter less-slag smelting and improving the cleanliness level of molten steel under the condition of high iron consumption. The steelmaking method comprises the following steps that S1, slag splashing furnace protection is conducted; s2, limestone and sintered ore are added to serve as grate-layer materials; s3, molten iron and scrap steel are mixed into the converter; s4, when BT is larger than or equal to 0 min and smaller than or equal to 6 min through blowing, lime, sintered ore and magnesium balls are added in batches; s5, when BT is larger than 6 min and smaller than or equal to 10 min through blowing, sinter is added to control the temperature of molten steel; s6, when blowing for 10 minutes and below BT, adding sintered ...

Self-rescue swimming cap for deaf-mutes

The invention discloses a self-rescue swimming cap for deaf-mutes and belongs to life saving tools. The self-rescue swimming cap is capable of calling for help and comprises a swimming cap body. The self-rescue swimming cap is characterized in that a water-proof membrane layer is fixed on the outer surface of the top of the swimming cap body and provided with a high-density waterproof alarming box, and a battery, a sound alarm and a power switch button are arranged in the alarming box and are electrically connected through a wire. The self-rescue swimming cap has the advantages that in use, the user wears the swimming cap and presses the power switch button in the emergency, and the sound alarm and a flash alarm light send emergency signals; in this way, once see and/or hear the emergency signals, rescuers can make a rescue timely to avoid unnecessary risks. The self-rescue swimming cap is easy and convenient to operate and adaptable to other swimmers.

Differential optimization algorithm based on differential absorption spectrometer

The invention discloses a differential optimization algorithm based on a differential absorption spectrometer, which belongs to the technical field of electrical data processing, is used for differential optimization of optical data, and comprises the following steps: acquiring wavelength and light intensity information of an absorption spectrum through the differential absorption spectrometer, calculating a concentration value of gas according to the absorption light intensity in the spectrum, and calculating the concentration value of the gas according to the Beer-Lambert law. Filtering out a slow change part with low dependence on wavelength in the spectrum according to a gas extinction effect, and removing the slow change part and Rayleigh scattering and Mie scattering extinction coefficients to obtain a differential optical density only representing gas molecular absorption; and broadening absorption spectral lines of characteristic wavelength bands corresponding to various gases by ...

Soil collecting device

The invention discloses a soil collection device, and relates to the technical field of forest soil collection, the soil collection device comprises a bottom plate, one end of a mounting plate is vertically arranged at one end of the bottom plate, a collection device is arranged at the top of one side, far away from the bottom plate, of the mounting plate, a collection device is arranged at the bottom of one side, far away from the bottom plate, of the mounting plate, and the collection device comprises a concave frame; a collection hole is formed in the side, away from the mounting plate, of the concave frame, the end, close to the mounting plate, of the placement plate is hinged to the interior of a groove of the concave frame, a collection groove is formed in the other end of the placement plate, and the cleaning assemblies are arranged on the two sides of the collection hole in a transverse plate at the bottom of the concave frame. The cleaning device is used for cleaning sludge on ...

Gas-phase iodine-doped metal oxide thin film transistor and preparation method thereof

The invention discloses a gas-phase iodine-doped metal oxide thin film transistor and a preparation method, and belongs to the technical field of semiconductor materials and devices.The transistor sequentially comprises a substrate, a dielectric layer, an active layer and a metal electrode from bottom to top, the substrate is made of any one of common glass, a silicon wafer and conductive glass, the metal electrode is made of any one of Al, Ag, Au, W, Ta and Pt, and the active layer is made of a metal oxide material with a nano structure. According to the iodine-based post-treatment doping technology, the electrical performance of the material can be controlled by controlling the exposure time of the metal oxide thin film and the thin film transistor in a sealing device filled with iodine vapor, and compared with an existing doping technology carried out in the material composition or thin film forming process, the method is simpler and easier to implement; the method is of great significance ...

Vehicle body stamping and welding production management method and device, server and storage medium

The embodiment of the invention discloses a vehicle body stamping and welding production management method and device, a server and a storage medium. The method comprises the following steps: obtaining and receiving a customer order file, and splitting the order file to obtain an incoming material warehousing sub-task and a logistics sub-task; analyzing the incoming material warehousing subtask to obtain a standard field and a corresponding attribute, and writing the standard field and the corresponding attribute into incoming material data as newly added incoming material data; analyzing the logistics subtask to obtain a standard field and a corresponding attribute, and writing the standard field and the corresponding attribute into the logistics data as newly added logistics data; according to the newly-added incoming material data and the newly-added logistics data, the production quantity and the construction period of incoming materials are determined, and newly-added task data are ...

Image processing method and device

The invention relates to an image processing method which comprises the following steps: an image hiding step: acquiring a carrier image, and converting the carrier image to a frequency domain to obtain a carrier frequency image; obtaining a secret image, and converting the secret image to a frequency domain to obtain a secret frequency image; splicing the carrier frequency image and the secret frequency image to obtain a first spliced image; performing continuous n times of affine transformation on the first spliced image, and obtaining n first affine transformation images corresponding to each affine transformation; splicing the n first affine transformation images and then carrying out affine transformation to obtain a second affine transformation image; performing channel compression on the second affine transformation image to obtain a first compressed image; and performing spatial domain conversion on a part corresponding to the carrier frequency image in the first compressed image ...

Error correction method for laser scanning angle system

The invention discloses a laser scanning angle system error correction method, which belongs to the technical field of laser radar measurement, is used for correcting laser scanning angle system errors, and comprises the following steps: selecting a calibration site, preparing a laser radar mounting crane, selecting a step edge on the calibration site as a calibration object, and selecting a direction vertical to the calibration object as a route direction; an airborne sounding system is arranged on the laser radar mounting crane, and the laser radar mounting crane is controlled to advance along the route direction; fusing and resolving the laser ranging data, the combined navigation data and the scanning angle data to obtain a point cloud, and marking a route vector and a step edge vector in the point cloud; recording the rotation angle of the scanning mirror through an iterative encoder, enabling the step ridge line extracted by the point cloud to be perpendicular to the air line, and ...

Narrowband data transmission method based on marine satellites

The invention discloses a narrow-band data transmission method based on a maritime satellite. The method comprises the following steps that S1, a transmitting end transmits data and encrypts the data; s2, satellite antenna equipment is additionally arranged at the transmitting end; s3, uploading the data; and S4, receiving, processing and sending the uploaded data by the maritime satellite. According to the maritime satellite-based narrowband data transmission method, data of a data transmitting end is encrypted and transmitted to a maritime satellite for processing and analysis, so that the data is transmitted to a remote cloud platform, a user side can directly download the data from corresponding software of the cloud platform, and a path of voice and 100kbps data access is provided by arranging SAILORFleetOne antenna equipment, so that the data transmission efficiency is improved, and the data transmission efficiency is improved. Therefore, offshore personnel can completely access colorful ...

InSAR terrain product water elevation editing processing method

The invention provides an InSAR terrain product water body elevation editing processing method. The method comprises the following steps: carrying out data preprocessing on a water body mask; automatically classifying the ocean in the water body mask; automatically classifying the rest lakes and rivers in the water body mask; the ocean elevation is automatically edited, and the geoid fluctuation height of the ocean pixels is calculated; carrying out automatic editing processing on the lake elevation; the river elevation is automatically edited and processed; and automatically identifying heterogeneous water bodies which are connected together, and performing smooth transition treatment on the elevation at the edge connecting position. According to the method, different characteristics shown by different types of water bodies and the characteristics of actual data are fully applied, elevation editing processing is carried out on the water body with noise in the InSARDSM, and on the premise ...

Energy-saving type heat supply pump room temperature regulation and control device

The invention discloses an energy-saving type heat supply pump room temperature regulation and control device which comprises a heat supply pump room, a boiler, a plurality of drainage pipelines and a plurality of drainage pumps, the drainage pipelines are installed on the drainage pumps respectively and evenly installed on the heat supply pump room, and the boiler is installed on the heat supply pump room. The boiler is connected to the multiple drainage pipelines, a preheating structure is installed on the inner side of the heat supply pump room, and a temperature adjusting structure is installed on the multiple drainage pipelines. The heat supply pump room has the beneficial effects that heat on the inner side of the heat supply pump room is recycled through the temperature adjusting structure, so that heat emitted by the multiple drainage pipelines and the multiple drainage pumps is recycled, the temperature on the inner side of the heat supply pump room can be guaranteed, preheated ...

Cooler

Placement angle error correction method based on airborne laser sounding system

The invention discloses a placement angle error correction method based on an airborne laser sounding system, which belongs to the technical field of laser radar measurement, is used for eliminating placement angle errors, and comprises the steps of extracting scanning track and route data, determining a long axis and a short axis of an elliptical track, and calculating a direction vector of the short axis. Calculating the direction vector of the projection of the route data in the to-be-determined plane and the direction vector of the projection of the ellipse short axis in the to-be-determined plane; solving an included angle between the two direction vectors, judging the size of the included angle and a threshold value, and determining whether compensation is carried out or not; and multiplying the coordinate of each point on the elliptical trajectory by the rotation matrix to obtain a compensated trajectory, and iteratively repeating the steps until the required precision is met. According ...

Automatic drawing pencil sharpener

The invention discloses an automatic drawing pencil sharpener. A conical pencil sharpened by the existing pencil sharpener does not accord with the demand of engineering drawing on a pencil core. The automatic drawing pencil sharpener comprises a pencil clamp, a horizontal pushing mechanism, a vertical pushing mechanism, a rough machining mechanism, fine machining mechanisms, a width regulation mechanism and a peripheral support; the pencil clamp and a horizontal slider are fixed; a vertical pushing nut and a horizontal pushing mechanism mounting support are fixed; one end of a cutter rest of a rough machining hob is fixed with an inner ring gear support; the other end of the cuter rest of the rough machining hob is connected with a cutter rest seat bearing of the hob; the rough machining hob is meshed with inner teeth of the inner ring gear support; the mounting shafts of fine machining hobs are arranged on the cutter rests of the fine machining hobs; the fine machining hobs and the mounting ...

Drift submerged buoy demonstration teaching aid

The invention relates to a drift submerged buoy demonstration teaching aid. The drift submerged buoy demonstration teaching aid includes a manual fine-tuning mechanism for controlling storage and maximum volume of a component, a straight push rod mechanism and a volume automatic-change mechanism. The manual fine-tuning mechanism for controlling storage and maximum volume of the component comprises a PET (polyethylene glycol terephthalate) screw cap, a PET screwed pipe with the bottom drilled with holes, a PVC (polyvinyl chloride) screwed pipe, a nut and a rubber washer. The straight push rod mechanism comprises a DC (direct current) geared motor, a motor frame, an elastic coupling, a push rod unit, a double head threaded pipe clamp and a screw thread pipe. The volume automatic-change mechanism comprises a double head threaded pipe clamp, a piston, a water storage chamber, a rubber gasket, an acrylic pressure ring, an outer tooth joint and a leather bag. The drift submerged buoy demonstration ...

Heat supply room temperature adjusting device capable of synchronously controlling operation

The invention discloses a heat supply room temperature adjusting device capable of synchronously controlling operation, which comprises a heat supply machine room, a plurality of heat supply drainage pipes and a plurality of electric appliance cabinets, the plurality of heat supply drainage pipes and the plurality of electric appliance cabinets are uniformly mounted on the heat supply machine room, and a cooling structure is mounted on the heat supply machine room. An auxiliary cooling structure is mounted on the plurality of heat supply drainage pipes, and a sealed drainage cooling structure is arranged on the plurality of electric appliance cabinets; the cooling device has the beneficial effects that the multiple heat supply drainage pipes and the multiple electric appliance cabinets on the inner side of the heat supply machine room are sealed and cooled, low-temperature gas is drained, and therefore heat generated in the equipment operation process is dissipated, the cooling effect is ...

Novel full-view mirror

The invention discloses a novel full-view mirror for making up and belongs to daily living supplies. The novel full-view mirror is characterized in that two ends of a main mirror tube are respectively provided with a target end mirror tube and an observation end mirror tube, the target end mirror tube and the observation end mirror tube are vertical to the main mirror tube and are positioned on the same side of the main mirror tube, the turning parts of the two ends of the main mirror tube are respectively provided with middle turning mirrors capable of realizing 90-degree reflection of light rays, the tail end of the target end mirror tube is provided with a target end reflector forming a 45-degree included angle with the mirror tube, and the tail end of the observation end mirror tube is provided with an observation mirror forming a 45-degree included angle with the mirror tube. Images behind the head can be conveniently and clearly seen when the novel full view sight mirror is placed ...

Scanning file interactive batch renaming method

The invention discloses an interactive batch renaming method for scanned files, and relates to the technical field of automatic office. The interactive batch renaming method comprises the following steps: importing os and re modules, constructing a renaming reference list, and obtaining a target file name list; wherein the step of constructing the renaming reference list comprises the substeps of inputting a reference file name list, sorting the reference file name list and removing suffixes of file names; wherein the step of obtaining the target file name list comprises the substeps of obtaining a target file path, performing sorting processing, renaming file suffix setting and finally finishing renaming the file list. By calling an os system file processing module and designing a required regular expression based on a file key number sequence number, batch renaming processing of the scanned files is realized through an adjustable and interactive python script, the limitation of manual ...

Zero watermark processing method and device

The invention relates to a zero-watermark processing method, which comprises the following steps of: acquiring a carrier image, and performing stable feature detection on the carrier image to obtain a plurality of stable feature points; intercepting the carrier image by taking each stable feature point as a center to obtain a plurality of local carrier images; performing image feature extraction on each local carrier image to obtain a plurality of local image features; obtaining an original watermark image, and scrambling the original watermark image to obtain a scrambled watermark image; and performing XOR operation on each local image feature and the scrambled watermark image to obtain a plurality of zero-watermark images. Compared with the prior art, the original watermark image can be accurately restored, and the reconstruction performance is high.

Device for treating non-condensable gas in boil-off gas of marine LPG (Liquefied Petroleum Gas) goods

The invention discloses a device for treating non-condensable gas in marine LPG (Liquefied Petroleum Gas) cargo evaporated gas. The device comprises a first liquid collector, a second liquid collector and a heat exchanger, a first air outlet end of the first liquid collector is connected with a first refrigerant side inlet end of the heat exchanger; a first liquid outlet end of the first liquid collector is connected with the liquid cargo tank through a main pipeline, a second liquid outlet end of the second liquid collector is connected with a second refrigerant side inlet end of the heat exchanger through an auxiliary pipeline, and a first throttle valve is arranged on the auxiliary pipeline; a second air outlet end and a second liquid outlet end connected with the liquid cargo tank are arranged on the second liquid collector; according to the non-condensable gas treatment device, low-boiling-point useful non-condensable gases such as ethane and the like can be liquefied and recovered ...

Population mobility analysis method and system based on load identification

The invention discloses a population mobility analysis method and system based on load identification. The method comprises the following steps: firstly, extracting load identification data of a user in a selected area within a set time; then, necessary electric appliances of residents are selected, daily electricity consumption distribution conditions of the necessary electric appliances of the residents are extracted from the obtained load identification data, and the lowest threshold value of daily electricity consumption of the necessary electric appliances of the residents is determined; and marking the date with the daily electricity consumption of the resident necessary electric appliances greater than the minimum threshold value within the set time as 1, marking the date with the daily electricity consumption less than the minimum threshold value as 0, averaging the sum of absolute values obtained by subtracting the previous day from the day after the date by using a difference ...

Cooking electric appliance, control method and device thereof, storage medium and electronic equipment

The invention discloses a cooking electric appliance, a control method and device of the cooking electric appliance, a storage medium and electronic equipment, and the control method comprises the steps: obtaining induction semaphore corresponding to each operation when detecting that an induction key of the cooking electric appliance is subjected to continuous multiple operations; and according to the induction semaphore, an effective key threshold value of the induction key is adjusted, so that the cooking electric appliance is controlled to enter a corresponding cooking mode according to the adjusted effective key threshold value next time. Therefore, according to the control method, the key operation experience of the user can be improved.