52results about "Checking devices" patented technology

This invention relates to a control system for preventing molten iron overflow during ladle discharge. The system includes a furnace platform with a molten iron trough and two sets of rails passing beneath the furnace platform. A swing chute is located below the outlet of the molten iron trough. Ladle cars are mounted on the two sets of rails, each carrying a molten iron ladle. Each set of rails has a molten iron discharge station located below the swing chute. A ladle car position sensor is installed beside each discharge station on the rails to detect whether the ladle car is in position. A rail weighing scale is installed at each discharge station, and a radar level gauge is installed above the discharge station to detect the liquid level in the molten iron ladle. This invention provides a control system for preventing molten iron overflow during ladle discharge, achieving accurate control of the discharge amount. It can remind workers to switch discharge lines in a timely manner and can automatically switch lines if workers do not make adjustments, reducing the risk of excessive molten iron overflow damaging the ladle and ladle car, and ensuring safe production.

The present application relates to a kind of blast furnace residual iron furnace residual iron mouth position determination method, comprising: the determination of furnace residual iron mouth elevation position and the determination of furnace residual iron mouth circumferential position and the like steps.The blast furnace residual iron furnace residual iron mouth position determination method provided by the present application, by the erosion rate of furnace refractory, blast furnace refractory thermal conductivity coefficient and blast furnace running time model, determine the thinnest part of refractory, i.e.elevation (i.e.latitude), by circumferential position model, again in combination with the convenience of residual iron and furnace cooling wall temperature detection, determine specific cooling wall (i.e.latitude), compared with prior art, it is a more scientific method.

This invention provides an energy-saving blast furnace gas temperature regulation device, applied at the blast furnace gas outlet. It includes a gravity dust collector, a radiator, a dust collection bag, and a turbine. The gravity dust collector is connected at one end to the blast furnace gas outlet and at the other end to the radiator, used for preliminary removal of large particulate impurities from the blast furnace gas. The radiator is connected at one end to the gravity dust collector and at the other end to the dust collection bag, used to control the temperature of the blast furnace gas and prevent damage to the dust collection bag. The dust collection bag is connected at one end to the radiator and at the other end to the turbine, used to remove impurities from the blast furnace gas, completing the purification process. The turbine, connected to the dust collection bag, converts the pressure and thermal energy of the blast furnace gas into rotational mechanical energy to drive a generator. This invention effectively regulates the temperature of the blast furnace gas, simultaneously treating the gas and enabling its recycling.

This invention belongs to the field of blast furnace operation and longevity technology, and relates to a combined cooling structure and cooling process for stabilizing the internal shape of a blast furnace belly. The combined cooling structure includes: a belly cooling wall, continuously arranged circumferentially along the inner side of the furnace shell, with its hot surface protruding inwards, such that the hot surfaces of multiple belly cooling walls together form a continuous inclined plane consistent with the designed belly angle α; a first cooling plate layer, continuously arranged circumferentially along the lower part of the belly cooling wall, and extending radially in the blast furnace to cover the lower end of the belly cooling wall; and a second cooling plate layer, composed of multiple second cooling plates arranged below the first cooling plate layer. This invention, through its innovative structural design of the hot surface of the belly cooling wall protruding inwards and the continuous arrangement of the first cooling plate layer forming a protective eave, solves the problem of internal shape instability caused by changes in refractory or slag thickness.

A method for detecting the height of a molten material with higher detection accuracy than conventional methods is provided. A molten material height detection method for detecting the molten material height in a blast furnace, which measures vibrations at one or more positions on the furnace wall in the lower part of the blast furnace, analyzes the vibration frequency to identify the vibration intensity of a frequency that is correlated with the vibration generated by introducing gas into an inlet in the lower part of the furnace, and detects the molten material height using a corrected vibration intensity that removes the influence of the amount of bosh gas generated by the introduction of gas from the vibration intensity of the identified frequency.

This application discloses a device for treating blockages in cooling wall water pipes. The device includes: a first tee pipe having a fourth, fifth, and sixth pipe, wherein the fourth pipe is connected to the flow channel of the first pipe, the fifth pipe is connected to the flow channel of the third pipe, and the sixth pipe is located between the fourth and fifth pipes; a second tee pipe having a seventh, eighth, and ninth pipe, wherein the seventh pipe is connected to the sixth pipe, the ninth pipe is connected to the second pipe, and the ninth pipe is located between the seventh and eighth pipes; a first shut-off valve located on the eighth pipe for controlling the on / off state of the eighth pipe; and a second shut-off valve located on the ninth pipe for controlling the on / off state of the ninth pipe.

The present disclosure discloses a system (500) for measuring thickness along a length of a conduit (111). The system includes a guide tube and a device (300) positioned in the guide tube (370). The device is configured to displace along the guide tube into the conduit. The device includes a plurality of links (100) pivotally connected to each other. Further, at least one carrier link (304) is positioned between at least a pair of the plurality of links and is configured to accommodate at least one sensor (340). Additionally, at least one protrusion (330) extends from the at least one carrier link and is configured to support a portion of the at least one sensor, to contact the conduit for measuring thickness of the conduit. Furthermore, a control unit (400) is communicatively coupled to the device (300) to operate the device and measure thickness along the length of the conduit.

The utility model provides a kind of blast furnace blower running state monitoring early warning system, including CPU module, first input module, second input module and output module, and the first fan shaft displacement sensor for monitoring fan running state, second fan shaft displacement sensor, first fan air inlet side shaft vibration sensor, second fan air inlet side shaft vibration sensor, first fan exhaust side shaft vibration sensor, second fan exhaust side shaft vibration sensor, fan air inlet side shaft temperature sensor, fan exhaust side shaft temperature sensor.The parameter monitored by the utility model covers blast fan shaft vibration, shaft displacement, temperature and other process parameters and the information that affects unit running state, is more comprehensive and accurate to the grasp of equipment running state, when blast fan state monitoring parameter deviates from process value or operating state appears abnormal, issue acoustic, light signal, the utility model can realize blast furnace blower running state monitoring and fault early warning, effectively curb fault loss.

The present invention relates to molten iron manufacturing equipment and a molten iron manufacturing method and, more specifically, to molten iron manufacturing equipment and a molten iron manufacturing method which are for manufacturing molten iron by producing reduced iron fines and melting the produced reduced iron fines. The molten iron manufacturing equipment according to an embodiment of the present invention comprises: a reduction unit capable of reducing a powder raw material so as to produce reduced iron fines; a melting unit capable of melting the reduced iron fines; a first auxiliary raw material supply unit capable of supplying an auxiliary raw material to the reduction unit; a cohesion evaluation unit capable of receiving at least a portion of the reduced iron fines from the reduction unit and evaluating the cohesion; and a control unit, which receives information about the cohesion from the cohesion evaluation unit so that the amount of the auxiliary raw material supplied by the first auxiliary raw material supply unit can be adjusted.

The invention relates to a system (1) for localizing the origin of an acoustic signal in a plant (100) for metal production and / or metalworking, wherein the system (1) comprises a first and a second sound sensor (10, 11), wherein the sound sensors (10, 11) are each configured to receive an acoustic signal, preferably an acoustic signal emanating from the plant (100); and a data processing device (20) connected to the sound sensors (10, 11), which is configured to localize the origin of an acoustic signal received from the sound sensors (10, 11).

The application relates to the technical field of smelting, and discloses a method and an experimental device for measuring the center accumulation formation time of a blast furnace, the method comprising the following steps: determining the relationship formula of the generation rate of titanium carbonitride and the reaction area and the reaction time based on the experimental device; determining the total amount of carbonitride generated in the reaction area of the blast furnace to be measured; and determining the center accumulation formation time corresponding to the blast furnace to be measured based on the relationship formula, the reaction area and the total amount of carbonitride generated. According to the scheme, the relationship formula of the generation rate and the reaction area and the reaction time is determined through the experimental device, and then the measured data of the blast furnace to be measured and the determined relationship formula are utilized, so that the center accumulation formation time corresponding to the blast furnace to be measured is determined in a combined mode of the measured data and the experimental data.

The utility model relates to air current detection device technical field, and disclose a blast furnace inhouse center air current detection device, include: limit box and blast furnace group, the limit box is assembled in the outside of blast furnace group, the inner chamber of limit box is assembled with limit block, the front of limit box is equipped with horizontal groove, the back of horizontal groove is equipped with annular groove, the inner chamber of annular groove upper and lower ends is equipped with limit slot, the inside of limit box is inserted with patch thermocouple, the outside of limit box is inserted with limit mechanism, the limit mechanism includes the type arm, the type arm is inserted in the outside of limit box. This blast furnace inhouse center air current detection device, through the type arm, the arm, the arm, the horizontal groove, the annular groove and the limit slot of adding, after the assembly of patch thermocouple is completed, the position of patch thermocouple is fixed quickly, improves the assembly speed of patch thermocouple, to improve the maintenance and unloading speed of patch thermocouple.

The present application relates to a kind of mu imaging detection method and system of multi-data fusion, belong to blast furnace detection imaging technical field.The method includes: through the mu detector arranged around blast furnace, the mu trajectory data of penetration blast furnace is collected;Space reconstruction is carried out based on mu trajectory data, and three-dimensional imaging model representing the density distribution of blast furnace interior is constructed;Multiple source observation data are obtained;Wherein, multiple source observation data at least include thermal data and acoustic data;Based on multiple source observation data and three-dimensional imaging model, construct joint inversion objective function;The joint inversion objective function is solved, and the state imaging distribution based on the three-dimensional imaging of blast furnace is output;Wherein, state imaging distribution includes material density distribution, temperature field distribution.Through the above-mentioned mode, the state parameter acquisition of full dimension, high precision blast furnace interior can be realized, solves the defect that traditional sensor single parameter is not covered completely, and detection precision is insufficient.

This application relates to the field of blast furnace ironmaking technology, and discloses a monitoring system and method for blast furnace tuyere air volume distribution based on CFD (Computational Fluid Dynamics). The system includes a client and a server; wherein the client is used to acquire tuyere data and send calculation tasks to the server, and to visualize and simulate the calculation results of the calculation tasks, the calculation tasks being derived from the tuyere data; the server is used to receive and process the calculation tasks sent by the client, and to feed back the processed calculation results to the client so that the calculation results can be displayed through the client. The technical solution proposed in this application can lower the barrier to entry for CFD simulation, allowing on-site production operators to use simulation, making simulation serve on-site production operators, and providing guidance for optimizing on-site production equipment structure and process parameters.

This invention relates to a thick-film intelligent refractory carbon brick, belonging to the field of blast furnace ironmaking. A thick-film electrical sensor is installed on the carbon brick, stacked layer by layer within the brick and numbered for positioning. Signals from each layer are led out via wires. The electrical state of the thick-film electrical sensor is synchronously affected by the erosion of the carbon brick, and the erosion state of the carbon brick is detected by the resistance signal output by the thick-film electrical sensor. This invention integrates the thick-film electrical sensor in situ onto the surface of the carbon brick, utilizing the corresponding change in output resistance during synchronous erosion to directly reflect the real-time high-temperature erosion of the refractory material inside the blast furnace wall. Compared to the traditional indirect monitoring method of inserting armored thermocouples into blind holes for temperature measurement and combining it with heat transfer model derivation, this method offers better simplicity, accuracy, and reliability, providing important technical support for ensuring the safety of blast furnace ironmaking production and correcting the prediction accuracy of hearth erosion models.

The present application relates to dust removal environmental protection technical field, especially a kind of dry dust removal ash closed ash unloading system, and ash unloading device includes dry dust removal box, pressure scraper, centralized ash bin, filter small box, sensor group and valve group;Control platform includes: data acquisition module, for the data acquisition of sensor group;Material level monitoring module, for the data acquisition of data acquisition module, to monitor the material level in centralized ash bin;Ash cleaning module, for the data acquisition of data acquisition module, to obtain ash cleaning signal according to the pressure difference of filter small box, and ash cleaning module executes ash cleaning operation according to ash cleaning signal;Ash unloading module, for the data acquisition of data acquisition module and material level monitoring module, to analyze and obtain ash unloading signal, and ash unloading module executes ash unloading operation according to ash unloading operation signal.The present application solves the problems of poor sealing, insufficient safety, energy waste and material level detection error of traditional ash unloading device technology.

A kind of blast furnace lining forced cooling device, including cooling wall, cooling wall is arranged between blast furnace shell and lining, the cooling wall is welded by upper cylinder, middle cylinder and lower cylinder, the inner side surface of cooling wall is adapted with the outer surface of blast furnace lining.Spray cooling is implemented to cooling wall by a circle of spray head that is arranged obliquely in the lower side of circular ring water pipe, cooling water can quickly flow down the outer surface of entire cooling wall, to implement forced cooling operation to blast furnace lining;The outer side surface of cooling wall is equipped with staggered flow guide plate, can make cooling water quickly and evenly flow through the outer surface of cooling wall;The outer side surface of cooling wall is equipped with temperature sensor that is uniformly arranged in position, the temperature of blast furnace lining can be detected in real time by temperature sensor when some local position of blast furnace lining is larger, when heat load, the spray head above this heating position can be opened alone to carry out local cooling operation, improve the dynamic adjustment cooling effect of cooling wall.

This invention relates to the field of blast furnace traction vehicles, specifically an online monitoring blast furnace traction vehicle and its load early warning system. The system includes a real-time load acquisition module, a dynamic evaluation module, a preliminary early warning module, a comprehensive early warning correction module, an early warning output module, and an autonomous decision-making module. Based on the maximum load, load fluctuation characteristics, and the proportion of sudden load changes, this invention generates load extreme value early warnings, load fluctuation early warnings, and load sudden change early warnings, respectively. This enables preliminary identification of three typical risks: overload, abnormal fluctuations, and sudden shocks. The early warnings are then continuously verified and corrected based on subsequent dynamic parameters, improving accuracy and avoiding false alarms caused by momentary interference or occasional fluctuations. Finally, risk classification is performed, allowing the system or personnel to adopt differentiated response strategies based on the severity of the risk.

To improve the calculation accuracy of the surface profile of charged materials in a blast furnace.SOLUTION: A processing apparatus 400 calculates a correction parameter λ based on the difference in the Z coordinate of the surface position in a furnace based on the measured values of a plurality of measuring apparatuses A and B.SELECTED DRAWING: Figure 4

The application provides a blast furnace swing chute automatic iron discharging method, and belongs to the technical field of blast furnace metallurgy, which comprises the following steps: obtaining real-time liquid level information of molten iron inside a blast furnace and real-time weight information of the blast furnace as a whole; preprocessing the real-time liquid level information and the real-time weight information to obtain preprocessed real-time liquid level information and real-time weight information; calculating a real-time iron discharging amount according to the preprocessed real-time liquid level information and the real-time weight information; and adjusting the opening degree of an iron discharging port of the blast furnace and the included angle between the swing chute and the vertical direction according to the real-time iron discharging amount. The blast furnace swing chute automatic iron discharging method provided by the application can collect relevant data of iron discharging of the blast furnace in two different dimensions by obtaining the real-time liquid level information of the molten iron and the real-time weight information of the blast furnace as a whole, so that the calculation of the iron discharging amount is supported by accurate and comprehensive real-time data, and the accuracy of the judgment of the iron discharging amount is improved.

A heat preservation method for a blast furnace hearth masonry construction belongs to the technical field of iron-making blast furnace masonry construction. The method comprises the following steps: S1. confirming the preconditions for the hearth refractory masonry construction: A. the construction hoistway for the hearth masonry construction is installed, and the hearth forms a relatively closed construction space; B. a thermometer is arranged in the hearth; C. the hearth cooling wall has water supply conditions; D. the hearth cooling wall body temperature measuring thermocouple is installed; S2. hot medium is supplied to the hearth cooling system loop, and the hearth cooling wall body temperature is controlled to be 40-70 DEG C; S3. the hot medium flow, temperature or tuyere cold air inlet amount supplied to the hearth cooling system loop is regulated and controlled, the hearth cooling wall body temperature is controlled, and the construction environment temperature in the hearth is controlled to be 5-40 DEG C. During the hearth masonry construction, the heated medium is supplied to the hearth circulating cooling water system, the hearth cooling wall temporarily plays the role of a heating radiator, the operation cost is low, the operation is simple, and the effect is good.

The present application relates to iron-making technology field, specifically relates to a kind of multi-iron mouth shared multi-set blast furnace slag granulation processing system's blast furnace slag liquid level monitoring method, by the corresponding deviation relationship between the theoretical slag generation amount and slag discharge rate sequence in historical reference heats, determine the independent correction parameter corresponding to each slag granulation processing system, and using the independent correction parameter, the slag discharge rate sequence of each slag granulation processing system associated with the current heats is weightedly corrected and accumulated summation, and the modified total slag discharge rate sequence is obtained;This kind of dynamic correction mode for the error characteristic difference of each system under the mapping relationship of multi-iron mouth sharing effectively eliminates the systematic deviation in measured data and its drift accumulated with time, solves the problem of liquid level monitoring failure caused by measurement distortion.

A hot-metal temperature-control method includes a permeability-abnormality determination step (S1 to S7) of determining an abnormality in furnace permeability of a blast furnace, an unburned-coal occurrence determination step of determining the occurrence of unburned pulverized coal due to pulverized coal that is injected from a tuyere and remains unburned, and an action-necessity determination step of determining whether action is necessary regarding hot-metal temperature-control based on a determination result of the permeability-abnormality determination step and the unburned-coal occurrence determination step.

A system for measuring a thickness of a cooling plate, including a probe holder unit designed to fit inside a coolant channel of the cooling plate, the probe holder unit having a housing extending along a length axis, an ultrasonic probe being arranged in the housing to be able to transmit and receive ultrasonic waves from a sensor side, a rear housing part being moveably arranged at the rear side, transversally to the length axis, and elastically biased away from the sensor side, thereby permitting the probe holder unit to adapt to the cooling channel size, a drive chain to assist the progression of the probe holder unit through the length of the coolant channel, the drive chain linked to first connecting means at the first end of the housing, where a cable assembly includes electric wires connects the ultrasound probe, and an encoder arrangement is configured to cooperate with the drive chain such as to measure a length of drive chain passing along it, the encoder arrangement having a first gear meshing with the drive chain and coupled to an encoder.