69results about How to "Avoid fuses" patented technology

The invention discloses a single-pixel fluorescent Raman bimodal imaging system and method, and belongs to the technical field of optical imaging. Comprising a light source module, a coding structured light module, a microscopic imaging module, a sample control module and a signal collection module which are sequentially arranged along a light path, the light source module is used for generating laser with required wavelength; the encodable structured light module converts the received laser into structured light; the microscopic imaging module amplifies the structured light, projects the amplified structured light to a sample plane, and collects fluorescence, elastic scattering and inelastic scattering generated after the sample is excited; the signal collection module amplifies, separates and collects the received fluorescence signals and scattering signals, converts the light signals into electric signals, and transmits the electric signals to the control and calculation module for storage and subsequent processing. According to the invention, the problem that the existing imaging system cannot obtain time-space consistent multi-modal images under the same excitation source and cannot realize image fusion is solved.

The invention discloses an ignition electric nozzle of an aero-engine and an assembling method, and the ignition electric nozzle comprises a shell assembly which is of a right-angle structure; the central electrode, the conducting rod and the contact pin are arranged in the shell assembly, the central electrode is connected with the contact pin through the conducting rod, and the central electrode and the contact pin are arranged on a horizontal section and a vertical section in the shell assembly respectively, so that the central electrode and the contact pin are arranged vertically. The ignition electric nozzle is designed to be of a right-angle structure, the central electrode and the contact pin are perpendicular to each other, and therefore when the ignition cable is connected with the ignition electric nozzle, the situation that the ignition cable is bent at the connecting position of the ignition cable and the ignition electric nozzle is avoided; the problem that connection failure is prone to occurring between the ignition cable and the ignition electric nozzle in a linear type ignition electric nozzle is solved, and reliability and stability of connection between the ignition electric nozzle and the ignition cable are improved.

The invention discloses a SiC-ZrC complex-phase continuous ceramic fiber and a preparation method of the SiC-ZrC complex-phase continuous ceramic fiber. The preparation method comprises the following steps: cracking polydimethylsiloxane to obtain a mixed product, mixing the mixed product with an organic metal reagent for thermal polymerization, cooling to obtain a head product, dissolving the head product, filtering, and carrying out reduced pressure distillation to obtain a precursor; adding the precursor into a spinning cylinder, heating for standing and defoaming, and then cooling for melt spinning to obtain a fibril; putting the fibril into a tubular furnace for heating, and meanwhile, introducing boron trichloride for curing to obtain a cross-linked filament; and putting the cross-linked wire into a tubular furnace, reacting according to a heating program, preserving heat, cooling to obtain an initial fiber, and heating in a sintering furnace to obtain the ceramic fiber. The prepared precursor is controllable in softening point, uniform in molecular weight distribution and excellent in spinning performance, boron is introduced in the non-melting process, and the fiber density and the high-temperature oxidation resistance of the fiber are greatly improved.

The invention discloses a multi-channel radar lightweight human body behavior recognition method based on hard classification judgment, which is applied to the technical field of behavior recognition and aims at the problem of insufficient recognition performance of the existing human body behavior recognition method. The method comprises the following steps: firstly, collecting multi-channel human body behavior data acquired based on a millimeter wave radar, processing related radar original echo signals through an MTI technology, and then respectively carrying out STFT to obtain radar heat maps of dimensions such as a human body target distance dimension and a Doppler dimension; the obtained multi-channel radar heat map serves as a data set to be input into a plurality of independent MobileNetV3 lightweight network models for classification and recognition, then a multi-channel recognition result is judged through an algorithm based on hard classification judgment, multi-channel human body behavior information is fused, and a final human body behavior judgment label is obtained.

The invention discloses a paper machine wastewater treatment monitoring system, and particularly relates to a wastewater treatment monitoring technology, the system comprises a pretreatment module, a process section wastewater monitoring module, a wastewater abnormity tracing module, a process section wastewater diversion module, a process section wastewater confluence module, a wastewater treatment pool scheduling module, a wastewater treatment evaluation module and a database. According to the pollution index of the wastewater of each process section monitored each time in history, the pollution index of the wastewater of each process section monitored currently is predicted, and the initial flow guide direction of the wastewater of each process section is set. According to the predicted water inlet amount, the discharge amount and the residual capacity of the wastewater pool of each treatment grade, intelligent automatic scheduling between the wastewater pool of each treatment grade and the buffer is realized, scientific treatment of wastewater to flow into the wastewater pool of each treatment grade is effectively realized, efficient treatment of papermaking machine wastewater is realized, and the production efficiency is improved.

The invention provides a micro-droplet collecting device and a method for collecting micro-droplets by using the device. The micro-droplet collecting device comprises a collecting part which is provided with a liquid distributing pipe, a plurality of collecting pipes and a plurality of liquid conveying pipes communicated with the liquid distributing pipe and the collecting pipes; a receiving opening for receiving micro-droplets is formed in the top of the liquid distribution pipe, and a plurality of liquid distribution openings corresponding to the collecting pipes are uniformly formed in the position close to the bottom in the circumferential direction; the top of the collecting pipe is provided with a collecting opening and a sealing cover matched with the collecting opening; one end of the liquid conveying pipe is limited on the inner side of the collecting opening and penetrates into the bottom of the collecting pipe through the collecting opening, and the other end of the liquid conveying pipe is communicated with the liquid separating opening corresponding to the liquid separating pipe; the fixing part is detachably mounted on the working platform; and the liquid distribution pipe is detachably placed and limited on the fixing part. When the method for collecting the micro-droplets is used for collecting the micro-droplets, tube replacement and oil replacement are not needed, the quality of the droplets is uniform and stable, and the experiment time is saved.

The present invention discloses a medical suture heat curing automatic cutting machine, which belongs to the technical field of textile machinery. The medical suture heat curing automatic cutting machine includes a frame, a tension wire release device, a heating curing device, a traction length fixing device and a cutting device. The tension wire release device is installed on one side of the frame, and the tension wire release device includes a wire drum; the heating curing device includes a heating block; the traction length fixing device includes a linear module, a movable finger cylinder and a fixed finger cylinder, and the linear module is slidably connected to the movable finger cylinder; the cutting device includes a blade. The present invention can accurately cut out sutures of the same length, and the cutting process does not require manual participation, will not cause suture contamination, saves a lot of labor costs, can realize continuous automatic cutting, and is highly efficient; the suture fracture after cutting will harden, will not be loose and unable to thread, and there is no need to cut off the loose sutures in the later stage, threading is convenient, and waste of sutures is avoided.

The utility model belongs to the field of chemical engineering, and particularly relates to a plant-based collagen fiber extraction device which comprises a base, a supporting column is installed on the top of the base, and a suspension plate is installed on the upper portion of the supporting column. The lifting mechanism comprises a lifting device arranged on the suspension plate, the output end of the lifting device is provided with a lifting rod, and the other end of the lifting rod is connected with a hanging bracket; after the plant-based collagen fibers are separated from the stirring liner, the stirring liner can be connected with the stirring shaft again through the clamping mechanism, and the stirring liner filled with redundant wastes can be taken out of the kettle body in an upward pulling manner, so that the flocculated plant-based collagen fibers are prevented from being fused with the plant-based wastes; the purity of the extracted plant-based protein fiber is ensured; separating liquid formed by mixing plant-based collagen fibers and water is filtered through the filtering mechanism, the liquid is collected through the water diversion partition plate, and the plant-based collagen fibers are separated through fiber-grade filtering holes formed in the filtering plate.

This invention discloses a hydrocolloid material containing guaiac, its preparation method, and its application, belonging to the field of medical care materials technology. It includes a backing layer and a hydrocolloid functional layer. The hydrophobic elastomer matrix comprises polyisobutylene, styrene-isoprene-styrene block copolymer, tackifying resin, liquid paraffin, and optionally caprylic / capric triglycerides. The pre-wetted hydrophilic absorbent powder comprises sodium carboxymethyl cellulose, pectin, gelatin, calcium alginate, sodium alginate, and caprylic / capric triglycerides. The composite plant repair oil comprises a phellodendron amurense lipid dispersion, Lithospermum erythrorhizon-Angelica dahurica extract, borage oil, sandalwood seed oil, borneol, and DL-α-tocopherol. The guaiac nanoliposome lyophilized powder is obtained by sequentially coating a guaiac nanoliposome aqueous dispersion with quaternized chitosan and sodium hyaluronate, then adding a lyophilization protectant and freeze-drying. This invention solves the problems of poor dispersion stability, easy degradation, insufficient soothing and repairing ability of guaiac, and instability in oil-water blends.

The utility model provides a battery cell and a battery, and relates to the technical field of batteries. The battery cell provided by the utility model comprises a pole piece, tabs and a diaphragm, the pole piece comprises a positive pole piece and a negative pole piece, the diaphragm is arranged between the positive pole piece and the negative pole piece, and the tabs can comprise a positive tab and a negative tab which are positioned on the same side of the pole piece; the positive plate comprises a composite current collector, and the tab comprises at least two metal sheets; the at least two metal sheets are connected to the edges of the two sides of the composite current collector respectively; at least partial areas of the at least two metal sheets are mutually welded to form a welding area, so that the contact area between the pole piece and the tab is increased, the overcurrent capability between the pole piece and the tab is improved, the poor comprehensive performance of the battery cell is improved, the temperature rise at the tab is prevented from being too high during charging and discharging, and the tab is prevented from being easily fused and the battery is prevented from being on fire.

This invention provides a polypeptide with the sequence AEDVGDVAFVKNDT. The polypeptide provided by this invention can inhibit human respiratory syncytial virus (RSV) surface protein F, thereby inhibiting its fusion with the host cell membrane. This invention also provides sheep colostrum. The sheep colostrum includes the aforementioned polypeptide with antiviral function; therefore, this sheep colostrum helps elderly people with weakened immune systems resist RSV infection and promotes the repair of respiratory mucosa. This invention also provides a method for preparing sheep colostrum. This preparation method is simple and can be industrially produced. This invention also provides a method for preparing the aforementioned polypeptide.

The utility model discloses an automatic lubricating oiling device which comprises a machine base, an oil drum is installed at the top end of the machine base, a top cover is fixed to the top end of the oil drum, an oil conveying mechanism is arranged in the oil drum and the machine base, a backflow mechanism is arranged at one end of the oil conveying mechanism, and the backflow mechanism comprises a backflow box connected with the oil conveying mechanism. A backflow pipe is connected into the backflow box, a backflow pump is installed at one end of the backflow pipe, and an oil injection pipe is installed on one side of the backflow pump. By arranging the backflow mechanism, after the lubricating oil is conveyed, a backflow pump in the oil conveying mechanism can extract the lubricating oil into a backflow box through a backflow pipe, at the moment, the lubricating oil retained in the conveying pipeline flows back into an oil barrel again through the backflow box, the backflow pipe, the backflow pump and an oil injection pipe, and therefore the situation that the lubricating oil is left in the pipeline is avoided; and therefore, the subsequent injection amount of the lubricating oil is guaranteed, and the precision of the oil injection equipment is improved.

This disclosure relates to a protection method, apparatus, device, vehicle, and related products for shutdown path detection. The method includes: acquiring the status information of the vehicle's electric drive module; and, if the status information of the electric drive module indicates a short circuit, executing a shutdown path detection protection strategy. Embodiments of this disclosure can avoid thermal safety risks and fuse blowouts caused by direct connection between the upper and lower bridge arms of the electric drive module during shutdown path detection in the event of a short circuit failure in the power module, thereby reducing vehicle damage.

The invention discloses an alkaline earth metal stable oxygen-like superatomic cluster material and a preparation method thereof.The material is prepared from aluminum powder, alkaline earth metal hydride and anhydrous metal halide serving as a structure-directing agent, and the preparation method comprises the steps that firstly, under the inert atmosphere, the raw materials are subjected to high-energy ball milling to prepare a composite precursor; then temperature programming heat treatment is carried out, hydrogen generated by hydride in-situ decomposition is used for reducing an interface and inducing lattice defects, and meanwhile, interface migration and chemical adsorption effects of halide ions are used for pinning newly generated cluster units; and finally, carrying out non-equilibrium densification through spark plasma sintering. According to the method, the defect that a thermodynamically stable alloy phase is easily formed in a traditional smelting method is overcome, the oxygen-like cluster structure with the 38 electron open shell layer characteristic is successfully stabilized in a macroscopic solid state through a synergistic mechanism of gas phase pore forming and interface pinning, and the material is endowed with excellent catalytic activity and semimetal conduction characteristic.

A battery management device and a manufacturing method thereof can suppress unintended fuse blowout with a simpler structure. The battery management device includes a battery cell, a substrate having a wiring, a fuse connected to the wiring, a resistor generating heat in the vicinity of the fuse, a field effect transistor opening and closing a current path of the resistor, a protection IC controlling an operation of the field effect transistor, a first extension portion extending from the wiring between the protection IC and a gate of the field effect transistor, and a second extension portion extending from the wiring connected to a source of the field effect transistor, an end portion of the first extension portion and an end portion of the second extension portion having exposed portions where a protective film of the substrate is not formed, and the end portion of the first extension portion and the end portion of the second extension portion are not connected.

The invention discloses an information processing method and device, equipment, a storage medium and a program product, and relates to the technical field of information processing.The information processing method comprises the steps that multiple pieces of user information are obtained; for any two pieces of user information, based on the sub-information, calculating a sub-information matching degree of each preset type; for any two pieces of user information, taking the sum of the target weights as information similarity; the target weight is a weight of a preset type corresponding to the sub-information matching degree greater than a preset threshold value; if the information similarity is greater than a preset similarity, determining that any two pieces of user information belong to the same user; and combining any two pieces of user information. According to the method, more complete user information can be obtained, so that an accurate analysis result can be obtained when data analysis is performed by using the user information subsequently.

This invention provides a hot-press forming method for optical glass elements that prevents glass preforms from sticking to molds. The method includes the following steps: depositing a boron nitride film layer on the surface of a glass preform, and then hot-pressing to form an optical glass element. The thickness of the boron nitride film layer on the surface of the glass preform is less than or equal to 15 nm. The surface of the hot-pressed optical glass element is coated with at least one atomic layer of boron nitride film, or at least 0.65 nm thick boron nitride film. This invention solves the glass adhesion problem by depositing a boron nitride film layer on the surface of the glass preform, preventing fusion, cracking, and other defects. Using PVD or CVD boron nitride film layers prevents active hydrogen from hydrogen-containing DLCs from entering the glass preform during film formation, preventing fogging, blurring, and damage to the film surface of the optical glass element. It also reduces the difficulty of mold separation during the molding process and improves production automation and molding stability.

The invention discloses a colorectal cancer organoid model and a construction method and application thereof, and relates to the technical field of tissue engineering and organoid chips, the construction method comprises the following steps: designing and manufacturing a micropore array culture substrate, the micropore array culture substrate comprises a plurality of organoid culture structures distributed in an array, a plurality of organoid culture cavities distributed at intervals are arranged on the organoid culture structure, one end of each organoid culture cavity is in an open funnel shape, and the other end of each organoid culture cavity is a closed cavity; and adding an inoculated cell suspension containing inoculated cells and matrigel and a culture medium into the organoid culture chamber, and carrying out in-situ culture of a whole culture process to obtain the colorectal cancer organoid model. The method has the effects of improving the homogeneity of the organoid in the colorectal cancer organoid model, constructing the flux of the organoid, shortening the culture period and reducing the unit dosage of matrigel.

The invention relates to a hot-rolled wire rod for a 2430 MPa grade stranded wire and a manufacturing method of the hot-rolled wire rod, after Al-Si-V chemical components are rolled and spun into a wire rod, the wire rod is subjected to online molten salt rapid quenching isothermal treatment, so that the wire rod is firstly subjected to front-section molten salt treatment and is rapidly cooled, and enters a sorbite phase region from an austenite state to form a structure taking a sorbite structure as a main structure; and then carrying out rear-section molten salt treatment, reducing the circulation volume of molten salt, promoting the unconverted retained austenite to be continuously converted into sorbite, carrying out isothermal tempering, promoting fusing of a part of sorbite lamellar layers, and finally carrying out slow cooling through a roller way, so as to prepare the hot-rolled wire rod of which the microscopic structure comprises a mixed structure consisting of tempered sorbite, tempered ferrite and fused sorbite, the material cost can be reduced, abnormal structures can be inhibited, the tensile strength is 1581-1630 MPa, the percentage reduction of area is 34%-39%, off-line heat treatment is not needed, and efficient and stable production of the ultra-high-strength stranded wire is promoted.

The utility model provides a resistance welding device which comprises a graphite plate used for containing a workpiece, a negative electrode body and a positive electrode, the negative electrode body and the positive electrode are arranged above the graphite plate, and the positive electrode is used for making contact with the workpiece placed on the graphite plate during welding; and the negative electrode main body is in contact with the graphite plate to form electrical connection, so that the negative electrode main body serves as a negative electrode in the welding process. According to the graphite plate, after the graphite plate and the cathode body are connected together, the graphite plate serves as a cathode, the graphite plate can enable current to be more evenly distributed on a workpiece in the welding process, the problem that the workpiece is broken down due to the fact that the current is too concentrated is solved, the welding quality is improved, the service life of the workpiece is prolonged, and the welding quality is improved. The negative electrode function is achieved through the graphite plate, so that a certain distance is kept between the negative electrode main body and the workpiece, the negative electrode main body and the workpiece are prevented from being fused together in the welding process, the cleaning work after welding is simplified, and the appearance and the use performance of the workpiece are guaranteed.

The invention discloses a screen printing device for a passivation layer of a TOPCon crystalline silicon solar cell, relates to the technical field of solar photovoltaic cell production, and aims to solve the technical problem that the crystalline silicon slice after manual transfer printing is very easy to touch the silver paste by mistake, causing the silver paste to deform and the screen printing to fail, including a screen printing component, a transmission component and a transfer component, the screen printing component includes a bottom frame and a printer body, the printer body includes a screen frame, a screen plate, a scraper and a printing table, the top surface of the printing table is provided with a plurality of strip slots, the side wall of the printing table is connected with a rack, the side wall of the printing table is connected with a transmission plate, the transmission component includes a motor, a worm and a worm gear, the worm gear is rotatably connected with a wheel frame, the top surface of the wheel frame is connected with the bottom surface of the transmission plate, the transfer component includes a support plate and a bearing plate, and a bracket is arranged above the bearing plate. The present invention has the advantages of improving the screen printing effect of the crystalline silicon slice and avoiding the deformation of the silver paste caused by manual unloading and transfer.

The application relates to the technical field of power system digitization, and particularly discloses a hybrid precision training power large language model optimization method, which comprises the following steps: in a power large language model training framework, BERT entity recognition and spatial attention calibration are fused, character-level position probability alignment is performed on handwritten annotations of low-quality scanned images, entity boundary fracture is repaired, and a power knowledge graph is constructed; in the power knowledge graph, LoRA fine-tuning and relationship graph contrast learning are fused, hybrid precision gradient scaling error is stabilized, negative sample punishment is applied to a contradictory reasoning loop, and weight drift is eliminated; in the hybrid precision training framework, BERT entity recognition and a spatial attention mechanism are fused, entity boundary fracture caused by low-precision calculation and image blurring is dynamically repaired through character-level position probability alignment, and the knowledge extraction accuracy of low-quality operation reports and handwritten annotation documents in the power field is significantly improved.

The present application relates to the field of artificial intelligence and digital medical technology, and provides a text classification method and device, electronic equipment and storage medium, based on pre-trained training of word level, the word vector representation of the extracted word can avoid the misplacement of word segmentation and lose the information of the word; In the fine-tuning stage, the word vector representation of the word is generated according to the word vector representation, based on the word vector representation, not only can effectively utilize the pre-training vector information, the word level vector is fused, also can effectively avoid the many problems caused by modifying pre-trained mode, and the word information of Chinese can be fused into the model, and the word segmentation of word level usually has a great effect in the scene of Chinese text classification, has a great influence on the final classification result of the model, improves the accuracy of semantic understanding of the text classification model, thereby improves the precision of the text classification model, and further improves the accuracy of text classification.

The utility model discloses a bucket and a sandstone forklift with a separating mechanism, and relates to the field of sandstone forklifts, the bucket comprises a bucket body and a separating assembly, the side edge of the bucket body is provided with bucket teeth, the separating assembly used for separating the internal space of the bucket body is arranged in the bucket body, and the separating mechanism is arranged on the bucket body. The separation assembly comprises a mounting ring, a hydraulic air rod, a connecting plate, a separation plate, a filtrate screen plate and a filling plate, the hydraulic air rod is mounted on the outer surface of the mounting ring, the connecting plate is mounted at the output end of the hydraulic air rod, meanwhile, the separation plate is connected to the end of the connecting plate, and the filtrate screen plate is mounted in the middle of the separation plate; and a filling plate is arranged on the rear side of the filtrate screen plate. According to the bucket provided with the separation mechanism and the gravel forklift, the installation ring is arranged to rotate outside the bucket body to control rotation adjustment of the hydraulic air rod, so that the separation plate carries out space separation in the bucket body, and the gravel forklift can shovel and convey two different materials at the same time when in use.

The invention provides a SiC / TiB2 ceramic fiber, the oxygen content in the fiber is less than 0.5 wt%, the mass percentage of TiB2 is adjustable in a range of 0.1-5%, the particle size of TiB2 is 50-60 nm, and the crystal phase of TiB2 is uniformly distributed in the SiC fiber; the preparation method of the SiC / TiB2 ceramic fiber comprises the following steps: carrying out secondary crosslinking (the temperature is 150-600 DEG C) on the organic fiber containing Ti, Si and C elements in a boron-containing mixed atmosphere, carrying out heat preservation treatment (the temperature is 1600-1900 DEG C, and the heat preservation time is 10 minutes to 2 hours) at high temperature, and cooling to room temperature to obtain the SiC / TiB2 ceramic fiber. And TiB2 is used as a second crystal phase and pinned at the grain boundary of the beta-SiC crystal phase, so that the decomposition of beta-SiC in an ultrahigh-temperature environment is remarkably inhibited, and the temperature resistance of the SiC / TiB2 composite ceramic fiber can be improved to 2000 DEG C or above.

The invention discloses a composite material cone structure based on hot isostatic pressing and a preparation method thereof. The preparation method comprises the following steps: (1) respectively processing components of the composite material cone structure; (2) assembling the component parts from top to bottom in sequence to form a cylinder assembly part; (3) placing the cylinder assembly part in a hot isostatic pressing device and carrying out interface fusion; and (4) machining to remove the allowance according to the shape and size of the composite material cone structure. According to the method, the composite material cone structure is divided into the multiple assemblies, then the hot isostatic pressing technology is used for achieving fusion between the different material assemblies, and therefore the integrally-formed structure is formed, the consistency of the mechanical properties of the composite material of the cone structure in all directions can be guaranteed, and the densification degree of the interior of the material is improved.

The present invention discloses a laser cutting machine for loudspeaker production, which relates to the technical field of laser cutting machines and comprises a main body mechanism, wherein the main body mechanism comprises a laser cutting machine body, a movable seat is slidably mounted on the top of the laser cutting machine body, an adjusting seat is slidably mounted inside the movable seat, a laser cutting head is slidably mounted on one side of the adjusting seat, and an auxiliary cutting mechanism is arranged on one side of the adjusting seat. The laser cutting machine for loudspeaker production can achieve the purpose of increasing the oxygen content when cutting loudspeaker raw materials by setting an oxygen enrichment unit, an airflow isolation unit and an adjusting mechanism for coordinated use, thereby avoiding the phenomenon of burrs on the raw materials due to unstable oxygen content at the cutting position, and avoiding the phenomenon of residues on the raw materials after cutting, and at the same time ensuring that the cut surface of the raw materials is smooth enough to ensure that subsequent processing is simpler and the cutting effect is increased.

The application discloses a blended yarn conveying and winding equipment with a deburring function, a fixed base is arranged in a hollow frame structure, a winding drum is fixedly connected to one side of the top of the fixed base, a support frame is arranged in a back-shaped frame structure, the bottom of the support frame is fixedly connected to the top of the fixed base, a deburring device is fixedly connected to the side of the support frame, a tensioning device is rotatably connected to the inner wall side of the support frame below the deburring device, the deburring device comprises a straightening drum, a deburring rod is fixedly connected to the side of the straightening drum, a driving shaft of a first motor is fixedly connected to the side of the straightening drum, the fixed end of the first motor is fixedly connected to the side of the support frame, and the side of the straightening drum is rotatably connected to the side of the support frame.

Provided are fired pellets which are effective for preventing clustering by preventing fusion by reducing the opportunity of contact between low-melting-point slags in the production of fired pellets used in a solid reduction furnace, and a method for producing the same. The present invention relates to a sintered pellet for reduction and a method for manufacturing the same. The ratio of the high-viscosity slag component (Al2O3 + MgO + SiO2) relative to the total Fe (T.Fe) in the sintered pellet for reduction satisfies the formula: (Al2O3 + MgO + SiO2) / T.Fe > = 0.09. Wherein Al2O3 is the component concentration (mass%) of Al2O3 in the fired pellets, MgO is the component concentration (mass%) of MgO in the fired pellets, SiO2 is the component concentration (mass%) of SiO2 in the fired pellets, and T.Fe is the component concentration (mass%) of T.Fe in the fired pellets.

Provided are a granular iron manufacturing device and a granular iron manufacturing method with which it is possible to efficiently cool granular iron and suppress the combination of the granular iron. The granular iron manufacturing device (70) is provided with a water flow control container (30) and a cooling water pipe group (40) for supplying cooling water (24) into the water flow control container, and the water flow control container (30) is provided with a partition cylinder body (32) with an inclined surface (34) and a pipeline cylinder body (35) connected to the lower portion of the partition cylinder body (32). The cooling water pipe group (40) has an upper-stage cooling water pipe group (44), a middle-stage cooling water pipe group (46), and a lower-stage cooling water pipe group (48) that are connected to the partition cylinder (32), and generates a first circulation flow that circulates in the partition cylinder (32) by means of cooling water (24) supplied from the middle-stage cooling water pipe group (46) and the upper-stage cooling water pipe group (44). A second circulation flow circulating in the pipe cylinder (35) is generated by cooling water (24) supplied from the lower-stage cooling water pipe group (48) and drainage from the partition cylinder (32).