151results about "Furnace monitoring devices" patented technology

The invention provides an industrial boiler monitoring and analysis assistant decision-making cloud platform system, which comprises a data collector and a cloud-end server, wherein the data collector is used for collecting industrial boiler real-time monitoring data such as boiler operation parameters and environmental protection monitoring data in real time; the cloud-end server comprises a data analysis module and a data displaying module; the data analysis module is used for analyzing the real-time monitoring data to acquire analysis statistics data such as the operation data and the economic data of the industrial boiler, detecting an alarming event to acquire alarming information, detecting the operation condition of instrument equipment of the industrial boiler, providing maintenance information, judging a field fault reason and providing optimization recommendation; and the data displaying module is used for displaying the real-time monitoring data, the analysis statistics data, the alarming information, the maintenance information and the optimization recommendation. The invention can provide a regional industrial boiler remote monitoring and assistant decision-making platform integrating functions of online monitoring, automatic diagnosis, safety early warning, maintenance promoting, optimization recommendation and the like for various parameters for operation of the boiler as a whole.

A method for operating a blowing lance for blowing a gas in a metallurgical vessel, wherein the head of the blowing lance includes at least one supersonic nozzle, operating parameter measurement signals used for the purpose of process control are continuously acquired. The inlet pressure and/or the inlet temperature of the gas at the supersonic nozzle and/or the vibration amplitude and/or the vibration frequency of the blowing lance and/or the time at which ignition occurs during the oxygen blowing process and/or the location at which ignition occurs during the oxygen blowing process is detected and/or measured in the head of the lance by a detector or sensor arranged in the head of the lance near the supersonic nozzle during operation of the blowing lance. The measurement signal(s) are transmitted to a control unit connected to the detector or sensor and made available for controlling the operation of the blowing lance.

A resident measurement system for a charge level of a blast furnace includes a chamber, a servo system, a distance measurement unit, and a cooling-cleaning unit. The chamber is combined with a lateral furnace wall of the blast-furnace, covers an opening of the furnace wall, and has a pivoting hole. A pivot of the distance measurement unit is pivotally disposed at the pivoting hole, and the distance measurement unit is driven by the servo system to perform a motion with the pivot as a movement center, so as to measure the charge level. The cooling-cleaning unit is used to supply a high-pressure gas, which flows through the distance measurement unit to perform cooling and cleansing operations. The measurement system is small in dimension, and capable of scanning the charge level in an environment with high temperature, high concentration of dust, and high corrosion in the blast furnace furnace, establishing charge level information into a two-dimensional charge level mode, and obtaining a charge level profile distribution situation in real time, thereby promptly modifying a burden distribution mode.

The present invention refers to a method and to a control and tracking system of the charge of material transported by a continuous supply conveyor (2) of a metallurgical furnace (3), in particular an electric furnace for the production of steel, wherein said continuous conveyor (2) comprises, in sequence starting from its inlet end towards its outlet end, a loading section (2A) of the charge of material to be supplied to said furnace (3), a preheating section (2B) of the charge of material loaded and an introduction section (2C) into said furnace (3) of the preheated charge of material, and wherein along said loading section (2A) at least a first loading station (200) of material is present, wherein the method comprises the steps consisting in determining (101) the type and the weight of the material of a first charge fraction to be loaded into the first loading station (200); in function of a predetermined charge recipe (100), supplying (102) the first loading station (200) with the first charge fraction, detecting (103) the weight of the first charge fraction, discharging (104) the first charge fraction (C1) onto the continuous conveyor (2), marking (105) the first charge fraction (C1) through identification means (M1, M1', M1''), detecting (106) the overall dimensions of the first charge fraction (C1) discharged onto the continuous conveyor (2), estimating (107, 108) the advancing speed of the first charge fraction (C1) along the loading section (2A) of the continuous conveyor (2) and the arrival time of the first charge fraction (C1) entering a possibly subsequent loading station (200n) of a further charge fraction or the preheating section (2B), and, in proximity to the inlet of the preheating section (2B), recognising (115).

The present invention discloses a system and method for on-line measuring a burden surface in blast furnace to get burden surface information. The system comprises laser emitter(s) disposed above the burden surface and emitting laser beam(s) to continuously scan at least one portion of the burden surface; a video camera configured to shoot burden surface images, each of which comprises a detection point pattern formed by the laser beam incident on the burden surface; an image processing device configured to receive the burden surface images transferred from the video camera and output the burden surface information. As compared with the prior art, the present invention may substantially reduce the cost of the measuring system and obtain burden surface information sufficiently accurate with a large number of actual detection points. Furthermore, the system for on-line measuring a burden surface in blast furnace according to the present invention may use less number of laser emitter (even one laser emitter), so it is more advantageous to minimize the system and may simplify laser emitter protective measures.

The invention provides a sinter vertical cooling furnace device and a sinter cooling method. The sinter vertical cooling furnace device comprises a belt conveying unit, a cooling furnace, a blower, an induced draft fan, a waste heat boiler and a control unit, wherein the belt conveying unit is used for inputting sinter required to be cooled down into the cooling furnace; a vibrating quantitative feeder communicates with the discharge opening of the cooling furnace, and the air outlet of the cooling furnace communicates with the air inlet of the waste heat boiler; the air inlet of the blower communicates with air, and the air outlet of the blower communicates with the air inlet of the cooling furnace; and the air outlet of the induced draft fan communicates with the air inlet of the blower, and the air inlet of the induced draft fan communicates with the air outlet of the waste heat boiler. The modeling method of a BP neural network model is utilized, and the weight value of sinter in a cooling area, the opening degree value of the air inlet of the induced draft fan and the opening degree value of the air inlet of the blower are adjusted according to the relationship between the input quantity and the output quantity, so that the temperature of the cooled sinter meets the industrial standards, the temperature stability of the air outlet of the cooling furnace is improved, and heat in waste gas of a cooler is fully utilized.

An apparatus includes: a guide portion in which a reflection plate is disposed in an opening portion at one end, and an antenna is disposed at the other end, and which is to be inserted into a blast furnace through an opening of the furnace; a guide portion moving unit which moves the guide portion to the inside or outside of the furnace; a guide portion rotating unit which rotates the guide portion; and a reflection plate tilting unit which changes a tilt angle of the reflection plate with respect to the antenna. During measurement, the opening portion of the guide portion is protruded into the furnace, and the guide portion rotating unit and the reflection plate tilting unit are driven to scan planarly or linearly the surface of a burden in the furnace.

The invention discloses a novel intelligent cement clinker sintering control system. The novel intelligent cement clinker sintering control system comprises a temperature monitoring system, a pressuremonitoring system, a gas analysis system, a kiln tail feeding control system, a decomposing furnace coal-fired control system, a kiln head coal-fired control system, a rotary kiln speed adjusting system, a kiln head negative pressure control system, a grate cooler speed adjusting system, an MCC system and a DCS system; the MCC system is connected with the DCS system; the temperature monitoring system, the pressure monitoring system and the gas analysis system are connected to the DCS system; the kiln tail feeding control system, the decomposing furnace coal-fired control system and the kiln head coal-fired control system, the rotary kiln speed adjusting system, the kiln head negative pressure control system and the grate cooler speed adjusting system are correspondingly connected with theMCC system and the DCS system. The novel intelligent cement clinker sintering control system is high in intelligent degree, labor is greatly saved, full-automatic stable operation can be achieved, and has perfect fault alarming and protecting functions.

The invention relates to a dynamic monitoring system and method for material levels of stock bins on the top of a submerged arc furnace. The system comprises a plurality of stock bins, wherein a guide rail is arranged above the stock bins, a feeding device is slidably arranged on the guide rail and used for feeding all the stock bins, material level instruments are arranged on the feeding device and used for inspecting the material levels of all the stock bins along with the feeding device and generating material level signals, and dynamic monitoring of the material levels of the stock bins is achieved. According to the dynamic monitoring system and method, the material levels of the stock bins are inspected through the at least two material level instruments mounted on the feeding device, the material level signals are output as two sets of continuous curve data containing time information, position information, the material levels of all the stock bins and the material levels between the stock bins, the at least two sets of signals are mutually redundant and mutually overlapped for verification, the reliability is quite high, and a reliable basis is provided for full-automatic control of submerged arc furnace production and optimization of distribution system design.

The invention provides a kiln cooling wall leakage acquisition unit and device and a cooling wall detecting method. The acquisition unit used for acquiring environment information of a cooling wall isprovided, sudden changes of the environment information are read by acquiring the environment information of the cooling wall, and weather the cooling wall has leakage or not and the leaking positionare further judged. By means of the scheme, influences to supply of cooling liquid are small, the acquisition and detection precision is high, and the cooling wall leakage detection precision and convenience are improved.

Equipment for the measurement and control of load material and scrap metal feeding into an electrical arc furnace includes an automatic control device for feeding control of load material or scrap according to the energy supplied to the bath, and a measuring device for the added load material, in correlation with the automatic control device, and a weighing device for the furnace shell, its contents and any other components it may support.

Device to control the feed of the metal charge in an electric arc furnace, comprising a conveyor associated at the end to a feed mouth provided in said electric arc furnace and, in cooperation with the conveyor, at least a system to detect the point-by-point profile of the metal charge present on the conveyor.

The invention discloses a combustion control method for a hot rolling pulse heating furnace, and the combustion control method is suitable for low heating loads and particularly suitable for pulse combustion during low-target-temperature and high-hot-charging-temperature slab production. On the basis of pulse combustion, for the low heating loads, low-heating-value combustion control is introduced, the gas heating value corresponding to the low loads is calculated, and the air-fuel ratio and the air-gas pipeline pressure needed for pulse combustion on the basis of gas heating value are established, the gas heating value and the air-gas pipeline pressure obtained through calculation are sent to a gas heating value adjusting mechanism and a heating furnace base combustion control mechanism,automatic pulse combustion control is achieved, and accordingly the purposes that the pulse nozzle combustion time is prolonged, the nozzle valve opening and closing frequency is reduced, and the furnace interior temperature uniformity is improved are achieved.

Provided is a method of controlling combustion of a regenerative heating furnace. The method controlled includes: a first step of sensing the temperature inside the furnace by a temperature sensor inside the heating furnace; a second step of receiving the measured temperature value inside the furnace, comparing the measured temperature value with a set reference temperature value, and outputting, to a sequence controller, an analog signal corresponding to a difference between the measured temperature value inside the furnace and the set reference temperature value; a third step of controlling combustion, and amounts of fuel, air, and discharged combustion gas of each of the burners by the sequence controller by a program set according to the outputted value in the second step; a fourth step of measuring the pressure inside the heating furnace due to combustion gas according to a combustion load; a fifth step of comparing the measured pressure value with the reference pressure, and outputting, the sequence controller, an analog signal corresponding to a difference between the measured pressure value and the reference pressure; and a sixth step of controlling, according to the outputted value of the fifth step, the discharge amount of combustion gas set in the third step by the sequence controller.

A melter gasifier of a smelting reduction installation is charged by bringing together coal-containing material in lump form and iron carrier material (which may be hot) before and/or while they enter the melter gasifier. The ratio of the combined amounts of iron carrier material and coal-containing material in lump form is variable. The combined amounts of iron carrier material and coal-containing material in lump form are distributed over the cross section of the melter gasifier by a dynamic distributing device, and the ratio of the combined amounts of the iron carrier material and coal-containing material in lump form is set depending on the position of the dynamic distributing device.

A solids injection lance includes (a) a tube that defines a passageway for solid feed material to be injected through the tube and has an inlet for solid material at a rear end and an outlet for discharging solid material at a forward end of the tube and (b) a puncture detection system for detecting a puncture in the solids injection tube.

The invention discloses a method for recovering electrolyte by pyrogenic process roasting of electrolytic aluminum carbon slag. The method is characterized in that the carbon slag is roasted in a smelting furnace to extract the electrolyte, the generated liquid electrolyte is solidified and conveyed through a mold vehicle, and a product is crushed through a crusher, conveyed through a belt, bagged, and returned to an electrolytic cell for production. The method can achieve the following goals that 1), the electrolyte is extracted from the carbon slag, a carbon impurity component is lower than0.5%, and the electrolyte can be directly returned to the electrolytic cell for use; 2), waste heat of smelting furnace flue gas is recovered, the thermal efficiency of the smelting furnace is improved, and a flue gas cooling treatment process is simplified; 3), the problem of blockage of a conventional heat accumulating type furnace heat accumulator is avoided; 4), the problem that a conventionalfurnace lining is prone to corrosion is avoided, and the service life of the lining is greatly prolonged; 5), slagging-off operation is reduced or even avoided; and 6), a workshop working environmentis purified.

The invention discloses a safety warning control system for a material regeneration vacuum smelting furnace and relates to the technical field of production safety warning. The safety warning controlsystem comprises a control device, a temperature sensor, a humidification sensor, an oxygen sensor, an air pressure sensor, an input module, a power supplying system, a display device, a remote controller, a wireless communication device and a warning device. The temperature sensor, the humidification sensor, the oxygen sensor and the air pressure sensor are connected with the control device in acommunication mode, and the control device is connected with the remote controller through the wireless communication device. According to the safety warning control system for the material regeneration vacuum smelting furnace, the working state of the vacuum furnace is controlled through the control device, the working environment safety coefficients of an existing vacuum smelting furnace duringproduction are increased, and the probability of safety accident occurrence is decreased; data in the whole production process are all real-time data, and production process analysis is facilitated; and the working state of the vacuum smelting furnace in the whole production process is monitored on site, and the on-site production situation and parameters are transmitted to the remote controller immediately to achieve remote control.

The invention provides a multi-stirring-shaft vacuum microwave oven special for powder. The vacuum microwave oven comprises a heating oven body, a cooling oven body, a weighing sensor, lower vacuum channels, an upper vacuum channel, an exhaust channel, a microwave input pipe, a feeding pipe and a temperature measuring component; and high-speed stirring shafts and a low-speed stirring shaft are arranged in the heating oven body. According to the multi-stirring-shaft vacuum microwave oven special for the powder, the oven can work in a vacuum state and can also work in an atmospheric pressure state; the oven can work in a plasma environment microwave heating state and can also work in a non-plasma environment microwave heating state; the oven can work in a microwave heating state, can work ina resistance heating state and can also work in a microwave heating and resistance heating dual-heating state; the oven can work in an oxidizing atmosphere state, can work in a reducing atmosphere state and can also work in other atmosphere states; and based on the action of the multiple stirring shafts, the heat treatment on materials can be sufficiently performed.

The embodiment of the invention discloses a material layer thickness detection apparatus and method capable of detecting the material layer thickness of a material transmitted on a sintering machine trolley. Firstly, the detection apparatus is installed beside a discharge position of a feeding machine instead of being installed above the sintering machine trolley as the conventional material layer thickness detection apparatus, the detection time point for detecting the material layer thickness is arranged ahead of schedule, and before the material is transmitted to the sintering machine trolley, the material layer thickness of the material on the sintering machine trolley can be obtained in advance. Then, the material layer thickness detection apparatus is advantaged by simple structure and small maintenance workload, the severe on-site environment can be well adapted, and the probability of damage to the detection apparatus due to the influence of the external environment is effectively reduced. Besides, according to the detection apparatus, the composition parts are simple, the cost is low, the material layer thicknesses in a plurality of detection areas on the sintering machine trolley can be simultaneously detected by employing multiple groups of weight detection apparatuses, and the detection cost is greatly reduced.