Steel slag continuous fiber manufacturing equipment

Abstract

The present invention relates to a fiber manufacturing apparatus utilizing steel slag, an industrial waste, which is used to produce a series of fibers. This apparatus is environmentally friendly and possesses significant advantages in price competitiveness. Furthermore, it actively contributes to process management by checking the quality status of the produced fibers through various sensors and monitoring the condition of the target fibers in real time based on a mechanism linked to the sensors. The apparatus maximizes convenience or efficiency of use due to ease of handling, use, maintenance, and repair derived from a structure differentiated from existing ones. The apparatus comprises: a fiber processing unit (100) that melts steel slag to remove impurities, then extrudes the molten liquid from which impurities have been removed through a nozzle to generate fiber strands, and then post-processes the generated fibers to obtain the fibers; and a sensor unit (200) installed in the fiber processing unit to detect and measure the generated fibers to determine whether they are defective. In particular, the sensor unit (200) comprises: an information collection unit (210) that collects data regarding the supply voltage, consumption current, and output voltage supplied to a measurement sensor that measures the fibers; and the data measured by the measurement sensor and It consists of an error measurement unit (220) that determines errors and defects by comparing preset standard data; and a data transmission unit (230) that intuitively guides the display of whether there is a defect by transmitting the data collected by the information collection unit and the time of comparison by the error measurement unit.

Description

Technology Field

[0001] The present invention relates to a fiber manufacturing apparatus using steel slag, and more specifically, to a fiber manufacturing apparatus using steel slag that maximizes convenience or efficiency of use due to ease of handling, use, maintenance, and repair derived from a structure differentiated from existing ones. This is achieved by utilizing steel slag, an industrial waste, to produce a series of fibers, thereby being environmentally friendly and possessing significant advantages in price competitiveness, as well as actively contributing to process management by checking the quality status of the produced fibers through various sensors and monitoring the condition of the target fibers in real time based on a mechanism linked to the sensors. Background Technology

[0003] Steel slag, which is inevitably generated during the steel processing process, is an industrial waste produced in the millions of tons annually, and its disposal is difficult due to the large volume. Generally, molten steel slag is collected, transported to a slag yard, cooled by spraying water, and crushed using a crusher to be classified into iron ore, ore concentrate, and slag. Among these classified slags, iron ore is utilized as a raw material in the ironmaking process, ore concentrate is utilized as a raw material in the sintering process, while slag is either landfilled, used for sintering, or utilized as a raw material for cement, depending on its particle size.

[0005] For example, Registered Patent Publication No. 10-1881448, "Method for Treating Steel Slag," is disclosed as one of the steel slag treatment technologies, and the technology comprises the steps of: disposing of steel slag in a soil landfill; and burying the steel slag by stacking a set of landfill materials on top of it so that the buried steel slag is sealed.

[0006] Here, the landfill material is an aluminum-containing compound that removes free CaO from steel slag and rapidly depletes CaO buried in the soil, while simultaneously efficiently managing hydroxide ions in the surrounding soil water to prevent the generation of highly alkaline water.

[0008] Meanwhile, glassy fiber compositions primarily consist of silicon dioxide (SiO2) as the main component, to which calcium oxide (CaO) and alumina (Al2O3) are added. Fibers for various applications are manufactured using this basic composition, and recently, continuous fibers utilizing steel slag are also being produced.

[0009] For example, one of the continuous fiber technologies utilizing steel slag is disclosed in Registered Patent Publication No. 10-1290783, "Method for manufacturing mineral fibers using slag." This technology involves introducing molten slag into a hollow cylindrical rotating body that is positioned horizontally with respect to the ground, along with compressed air to generate a high-speed airflow. During the introduction of the molten slag, the cylindrical rotating body is cooled by a cooling fluid, and as the rotating body rotates in the axial direction, mineral fibers can be easily obtained through a simple process.

[0011] As described above, a technology for processing steel slag and producing continuous fibers using such steel slag has been disclosed, and in addition to this, numerous similar technologies have been developed and are widely in use.

[0012] For example, a superior product must utilize correspondingly superior raw materials and components. However, steel slag generated during the steel processing process is difficult to regard as a superior material. Consequently, fibers produced using steel slag inevitably suffer from somewhat lower quality and exhibit a high defect rate during the production process.

[0013] Therefore, the present invention proposes a technology that utilizes steel slag to produce continuous fibers, while minimizing the defect rate and producing high-quality fibers by continuously checking and monitoring the condition of the fibers during the production process. Prior art literature

[0015] Registered Patent Publication No. 10-1881448 "Method for treating steel slag" Registered Patent Publication No. 10-1290783 "Method for manufacturing mineral fibers using slag" The problem to be solved

[0016] The present invention was created to more actively resolve the aforementioned problems, and the main problem to be solved is to provide a technology that is environmentally friendly and can drastically reduce production costs by manufacturing continuous fibers using steel slag, which is an industrial waste inevitably generated during the steel production process.

[0018] In addition, another problem addressed by the present invention is to provide a technology capable of uniformly producing high-quality continuous fibers in large quantities by providing a device and system capable of immediately inspecting the quality of fibers during or after manufacturing.

[0020] In addition, another challenge of the present invention is to provide a system that contributes to rapid on-site response and efficient process management by sharing a series of processes and information for inspecting fiber quality with on-site displays and personnel's personal terminals, thereby enabling real-time monitoring of the site from various locations, and particularly by constructing it in a form that allows for remote control. means of solving the problem

[0022] To achieve the above-mentioned problem, the configuration of the fiber manufacturing apparatus using steel slag proposed in this invention is as follows.

[0024] The fiber manufacturing apparatus of the present invention comprises: a fiber processing unit (100) that melts steel slag to remove impurities, then extrudes the molten liquid from which impurities have been removed through a nozzle to generate fiber strands, and then performs post-processing on the generated fibers to obtain fibers; and a sensor unit (200) installed in the fiber processing unit to detect and measure the generated fibers and determine whether they are defective.

[0025] In particular, the sensor unit (200) is characterized by being composed of: an information collection unit (210) that collects data on the supply voltage, consumption current, and output voltage supplied to the measurement sensor for measuring fibers; an error measurement unit (220) that determines errors and defects by comparing the data measured by the measurement sensor with preset standard data; and a data transmission unit (230) that intuitively guides the display of whether there is a defect by transmitting the data collected by the information collection unit and the time of comparison by the error measurement unit.

[0027] Additionally, the fiber processing unit (100) comprises: a silo (110) for storing and discharging steel slag in a fixed quantity; a melting furnace (120) for receiving steel slag from the silo, melting it, and removing impurities; a fiber forming machine (130) for forming fibers from the molten steel slag; a heater (140) for heating and slow cooling the fibers discharged from the fiber forming machine; an applicator (150) for applying a surface treatment agent to the fibers discharged from the fiber forming machine; and a winder (160) for winding fibers supplied from the applicator, but winding only the fibers for which defects are determined by a sensor unit (200).

[0029] In addition, the measurement sensor comprises one or more sensors selected from a Denier Counter, a Tensile Strength Sensor, a Colorimeter, a Length Measurement Sensor, an Infrared Spectrometer, an Elasticity Sensor, a Thickness Measurement Sensor, or a Density Sensor.

[0031] Meanwhile, the data transmission unit (330) transmits fiber data collected by the information collection unit (210) and error data determined by the error measurement unit (220) to a display, and the display includes providing information sharing and remote control functions through an electronic terminal configured as any one of a PC, laptop, tablet PC, or smartphone.

[0033] Additionally, the fiber forming machine (130) further performs a mixing function by having a mixing device built-in, and includes: a tank for receiving molten steel slag; a hopper for receiving fiber reinforcing agent into the tank; a mixing device for evenly mixing the molten steel slag and fiber reinforcing agent; and several nozzles for extruding the molten material mixed with fiber reinforcing agent.

[0035] In addition, the fiber reinforcing agent is composed of orthophosphate, zinc nitrate, aluminum nitrate, potassium iron cyanide, a non-ionic surfactant, and residual demineralized water, and the passivation film layer formed by chemical reaction with the surface layer of the continuous fiber is composed of the structural formulas Fe3KH14(PO4)8·4H2O, (Fe0 .84Al0 .16)3KH14(PO4)8·4H2O, and Fe3(NH4)H14(PO4)8·4H2O. Effects of the invention

[0037] According to the present invention, which is composed of the above-described configuration, by melting and extruding steel slag, an industrial waste generated during the steel production process, and then spinning it through a nozzle of a set to produce continuous fibers, it is possible to actively lead in environmental protection. Furthermore, since it is produced using industrial waste as the main material, it has the excellent effect of drastically reducing production costs and providing high-quality continuous fibers at a low cost.

[0039] In addition, the present invention has another effect of enabling the uniform mass production of high-quality continuous fibers by having various sensors attached to the fiber processing unit continuously measure the normal operation of the fiber processing unit as well as the handover counter, tensile strength, colorimeter, length, elasticity, thickness, etc., of the fiber being manufactured to identify defects.

[0041] In addition, the present invention provides another effect of enabling more efficient process management by outputting fiber status information measured by a sensor unit to a display installed on-site to intuitively guide the status of the fibers. In particular, since the display is equipped with video sharing and remote control capabilities with the personnel's personal terminals, rapid on-site response is possible through remote control even when the personnel are away from the site. Brief explanation of the drawing

[0043] FIG. 1 is a schematic diagram of a continuous fiber manufacturing apparatus constructed according to a preferred embodiment of the present invention. FIG. 2 is a schematic diagram of a fiber forming machine proposed by the present invention. Specific details for implementing the invention

[0044] Hereinafter, the structure of the present invention and the resulting operation and effects will be described collectively with reference to the attached drawings.

[0046] The advantages and features of the present invention and the methods for achieving them will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various different forms. These embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims. Furthermore, throughout the entire specification, the same reference numerals refer to the same components.

[0048] The present invention relates to a fiber manufacturing apparatus using steel slag.

[0050] Above all, it is noted that the present invention relates to a fiber manufacturing apparatus using steel slag, which maximizes convenience and efficiency of use through ease of handling, use, maintenance, and repair derived from a structure differentiated from existing ones. This is achieved by utilizing steel slag, an industrial waste, to produce a series of fibers, thereby being environmentally friendly and possessing significant advantages in price competitiveness, as well as actively contributing to process management by checking the quality status of the produced fibers through various sensors and monitoring the condition of the target fibers in real time based on a mechanism linked to the sensors.

[0052] FIG. 1 is a schematic diagram of a continuous fiber manufacturing apparatus configured according to a preferred embodiment of the present invention, and FIG. 2 is a schematic diagram of a fiber forming machine proposed by the present invention.

[0054] The fiber manufacturing apparatus proposed by the present invention comprises: a fiber processing unit (100) that processes steel slag to produce continuous fibers; and a sensor unit (200) that measures the continuous fibers being produced or produced to determine whether they are defective.

[0056] The above fiber processing unit (100) melts steel slag to remove impurities, then extrudes the molten liquid from which impurities have been removed through a nozzle to produce fiber strands, and obtains fibers by post-processing the produced fibers.

[0057] This fiber processing unit (100) may be configured such that devices such as a silo (110), a melting furnace (120), a fiber forming machine (130), a heater (140), a coating machine (150), and a winder (160) are arranged in a process flow.

[0058] The above silo (110) stores steel slag and discharges a fixed amount to the melting furnace (120) as needed.

[0059] The melting furnace (120) receives steel slag from the silo (110), stores it temporarily, and applies heat as needed to melt the steel slag while removing impurities.

[0060] The fiber forming device (130) forms fibers from steel slag melted in a melting furnace (120). The fiber forming device (130) may consist of an upper wall (131), a screen plate (132), and a bushing (133). The upper wall (131) has an entry hole formed therein to allow the entry of molten steel slag moving through a passage provided in the melting furnace (120). Here, the passage provided in the melting furnace (120) may be connected to a vertical wall formed on one side of the melting furnace to allow the molten steel slag to overflow. The screen plate (132) is horizontally positioned at the bottom of the upper wall (131) and has a plurality of passage holes formed therein to allow the molten steel slag supplied through the entry hole to pass through. The bushing (133) is horizontally positioned at the bottom of the screen plate (132) and has a plurality of nozzles installed to allow the molten steel slag supplied through the passage holes to pass through and form fibers.

[0061] Meanwhile, the fiber forming machine (130) may have a mixing device built-in to further perform a mixing function. The fiber forming machine (130) may be composed of: a tank for receiving molten steel slag; a hopper for receiving fiber reinforcing agent into the tank; a mixing device for evenly mixing the molten steel slag and fiber reinforcing agent; and several nozzles for emitting the molten material mixed with fiber reinforcing agent.

[0062] The above fiber reinforcement induces a chemical reaction on the surface of the fiber to passivate it, thereby actively suppressing corrosion and damage to the continuous fiber, and consequently ensuring a long lifespan for the continuous fiber.

[0063] These fiber reinforcing agents are composed of orthophosphoric acid, zinc nitrate, aluminum nitrate, potassium iron cyanide, non-ionic surfactants, and residual deionized water. The passivation film layer formed by chemical reaction with the surface layer of the continuous fiber has the structural formulas Fe3KH14(PO4)8·4H2O, (Fe0 .84Al0 .16)3KH14(PO4)8·4H2O, and Fe3(NH4)H14(PO4)8·4H2O, thereby maintaining and protecting the properties of the continuous fiber made from steel slag while actively suppressing corrosion and various damages.

[0064] In addition, the surface of the fiber, which has been passivated by a fiber reinforcement agent, exhibits a predetermined adhesive force, thereby maximizing the efficiency of fiber dyeing, various functional coatings, and painting. Consequently, effects such as significantly reducing working time compared to conventional methods, resulting in labor savings and ensuring excellent workability can be achieved.

[0066] The heater (140) is a device that heats and slow-cools the fibers discharged from the fiber forming machine (130), the applicator (150) is a device that applies a surface treatment agent to the surface of the fibers discharged from the fiber forming machine, and the winder (160) is a device that winds the fibers supplied from the applicator, but winds only the fibers that have been determined to be defective by the sensor unit (200).

[0067] In addition to this, the fiber processing unit (100) may further comprise a dryer for drying continuous fibers discharged from a coater; and a discharge unit for receiving the dried continuous fibers and transferring them to a winder.

[0069] The sensor unit (200) is installed in the fiber processing unit (100) to detect and measure the generated fiber and determine whether it is defective. According to a preferred embodiment of the present invention, it is installed at a point on the winder (160) to continuously measure the continuous fiber being wound through the winder and determine whether it is defective.

[0070] The sensor unit (200) comprises: a multi-type measurement sensor; an information collection unit (210) that collects status data of a continuous fiber from the sensor; an error measurement unit (220) that determines whether the continuous fiber is defective; and a data transmission unit (230) that transmits the measurement process and measurement results of the continuous fiber in real time.

[0072] Here, the measurement sensor may consist of a denier counter, a tensile strength sensor, a colorimeter, a length measurement sensor, an infrared spectrometer, an elasticity sensor, a thickness measurement sensor, or a density sensor, and depending on the selection of the relevant personnel, one or more of these sensors are deployed to detect the quality status of continuous fibers during or after production.

[0073] The above measurement sensors consist of a set of two identical models, and both sensors are installed within a preset radius, with one of the sensors being used as a comparison sensor. The preset radius mentioned here may be a location within a radius of 10 mm to 500 mm from the center position of the measurement sensors, and, for example, it can be determined that the accuracy is higher when compared the closer the location is to the measurement sensors.

[0075] The above information collection unit (210) is divided into a voltage information collection unit that collects data on the supply voltage, consumption current, and output voltage supplied to the measurement sensor; and a quality information collection unit that collects data on the quality status of the fiber; and performs the given roles, and stores the collected data or transmits it to the error measurement unit (220) upon request.

[0076] The above voltage information collection unit can collect the supply voltage, consumption current, and output voltage supplied from the power source by additionally providing voltage measurement sensors on the power supply line and output line of the measurement sensor.

[0078] The error measurement unit (220) determines errors and defects by comparing the data measured by the measurement sensor with preset standard data. Additionally, the error measurement unit (220) can extract a comparison target time, which is a time when the rate of change of the measured value of the voltage or quality data collected from the measurement sensor exceeds a preset ratio. The preset ratio mentioned here may be a ratio setting of 25% to 30%, and the setting may be changed from a minimum of 10% to a maximum of 90% depending on the type of measurement sensor and the surrounding environment.

[0079] Meanwhile, the method for calculating the rate of change of the measured value of the above voltage or quality data is based on the measured value T measured at time t2 within the time range of the voltage or quality data collected by the information collection unit (210). t2 from t a The measured value T at the time interval t1 t1 T to the value after subtracting t1 The absolute value obtained by dividing the measured value and multiplying by 100 can be calculated as the rate of change of the measured value.

[0080] In addition, if the error measurement unit (220) does not extract a time when the rate of change of the measured value exceeds a preset rate, it can extract voltage or quality data corresponding to n random arbitrary times within the voltage or quality data as a comparison target time and transmit it to the data transmission unit (230) described below.

[0081] Furthermore, the method for extracting n random times from the aforementioned voltage or quality data can be executed using a program that utilizes a programming language. Here, the programming language may consist of Python, Java, C, C++, JavaScript, Go, Ruby, Swift, Kotlin, PHP, C#, C Sharp, etc. For example, a method for extracting n random times from voltage or quality data using Python can be performed by using the Random module and Datetime module to set the time range in which the sensor operates within the voltage or quality data and then extracting n random times, or by utilizing the NumPy module.

[0082] In addition, another method for randomly extracting n times within the voltage or quality data is to apply the Fisher-Yates shuffle algorithm to the time range of the voltage or quality data to randomly extract n times within the voltage or quality data.

[0083] Meanwhile, among the n times extracted from the error measurement unit (220), n represents a natural number that may vary depending on the operating environment set by the user, and the meaning of the arbitrary time may be a time extracted in a random format without regularity from the total time collected from voltage or quality data.

[0085] The above data transmission unit (230) transmits the data collected by the information collection unit (210) and the time of comparison of the error measurement unit (220) to the display to intuitively guide guidance on whether there is a defect.

[0086] In particular, the above display may provide information sharing and remote control functions through an electronic terminal consisting of any one of a PC, laptop, tablet PC, or smartphone.

[0087] As described above, the data transmission unit (230) visualizes various data, including the supply voltage, consumption current, and output voltage of the measurement sensor collected by the information collection unit (210), and transmits them to a display, thereby intuitively guiding the status of the measurement sensor to the relevant personnel.

[0088] Through this process, the sensor unit (200) first transmits voltage or quality data, which is a set of measurement values ​​collected from multiple measurement sensors, to a display, and secondarily transmits it to a terminal of a person connected to the display via a network, so that the person can determine whether the process is operating normally even in a different space outside the site.

[0089] In addition, the relevant personnel may be notified by classifying a section where the rate of change of voltage or quality data does not exceed a preset rate of change, corresponding to a time interval set via a display or terminal, as a standard state section, and a section where it exceeds the preset rate of change, as an abnormal state section. Here, if the abnormal state section exceeds the maximum time range set by the user or if the number of occurrences of the abnormal state section exceeds a certain number, a warning alarm may be automatically triggered on the relevant personnel's terminal to enable a rapid response to the occurrence of abnormal phenomena. Furthermore, based on the upper and lower limits of the measurement values ​​set by the relevant personnel, the measurement value may also be classified as an abnormal state section and notified if it deviates from those values.

[0090] As described above, the sensor unit (200) is provided on one side of the fiber processing unit (100) to measure the quality status of the continuous fiber formed by the fiber forming machine (130), and by visualizing the measured data and displaying it on a display, the relevant personnel can quickly and easily check the quality of the manufactured continuous fiber through monitoring the display.

[0091] In particular, the data transmission unit (230) is constructed in such a way that a display installed at the site and a terminal of a person involved can be connected via a network. Therefore, even if a person involved is in a different space outside the site, they can check in real time whether the process is running normally through the terminal. Furthermore, when a defect error is determined by the error measurement unit (220), control is possible through a remote control function to modify the setting values ​​of each device required for continuous fiber production or to stop and restart each device individually.

[0093] The present invention, configured as described above, produces continuous fibers by melting and extruding steel slag, an industrial waste generated during the steel production process, and then spinning it through a set nozzle. This not only allows for active promotion of nature conservation but also enables the production of high-quality continuous fibers at a low cost by drastically reducing production costs since the production is based on industrial waste.

[0094] In addition, the present invention enables the uniform mass production of high-quality continuous fibers by using various sensors attached to a fiber processing unit to continuously measure the normal operation of the fiber processing unit, as well as the handover counter, tensile strength, colorimeter, length, elasticity, thickness, etc., of the fiber being manufactured to identify defects.

[0095] In addition, the present invention outputs fiber status information measured by the sensor unit to a display installed at the site to provide intuitive guidance on the fiber status. In particular, since the display is equipped with video sharing and remote control capabilities with the personnel's personal terminals, rapid on-site response is possible through remote control even when the personnel are away from the site, thereby enabling more efficient process management.

[0097] The present invention described above has been explained with reference to an exemplary embodiment illustrated in the drawings, but this is merely illustrative, and it should be made clear to those skilled in the art that various modifications and equivalent alternative embodiments are possible therefrom. Accordingly, the true technical scope of protection of the present invention should be interpreted by the appended claims, and all technical ideas within an equivalent scope should be interpreted as being included within the scope of rights of the present invention. Explanation of the symbols

[0099] 100. Textile Processing Unit 110. Silo 120. Melting furnace 130. Fiber formation period 140. Heater 150. Applicator 160. Winder 200. Sensor section 210. Information Gathering Department 220. Error Measurement Unit 230. Data Transmission Section

Claims

Claim 1 A fiber manufacturing apparatus using steel slag, characterized by comprising: a fiber processing unit (100) that melts steel slag to remove impurities, then extrudes the molten liquid from which impurities have been removed through a nozzle to generate fiber strands, and then processes the generated fibers to obtain fibers; a sensor unit (200) installed in the fiber processing unit to detect and measure the generated fibers and determine whether they are defective; wherein the sensor unit (200) comprises: an information collection unit (210) that collects data on the supply voltage, consumption current, and output voltage supplied to a measurement sensor that measures the fibers; an error measurement unit (220) that determines errors and defects by comparing the data measured by the measurement sensor with preset standard data; and a data transmission unit (230) that transmits the data collected by the information collection unit and the time of comparison by the error measurement unit to a display to intuitively guide the determination of whether there are defects. Claim 2 In claim 1, the fiber processing unit (100) comprises: a silo (110) for storing and discharging a fixed amount of steel slag; a melting furnace (120) for receiving steel slag from the silo, melting it, and removing impurities; a fiber forming machine (130) for forming fibers from the molten steel slag; a heater (140) for heating and slow cooling the fibers discharged from the fiber forming machine; an applicator (150) for applying a surface treatment agent to the fibers discharged from the fiber forming machine; and a winder (160) for winding fibers supplied from the applicator, but winding only fibers for which defects are determined by a sensor unit (200). Claim 3 A fiber manufacturing apparatus using steel slag according to claim 1, wherein the measurement sensor comprises one or more sensors selected from a Denier Counter, a Tensile Strength Sensor, a Colorimeter, a Length Measurement Sensor, an Infrared Spectrometer, an Elasticity Sensor, a Thickness Measurement Sensor, or a Density Sensor.

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