Sintering machine operation management method

Abstract

To accurately estimate the distribution pattern of gas flow velocity in a raw material charging layer.SOLUTION: An operation management method for a sintering machine 30 includes the steps of: granulating granulated particles from sintering raw materials based on the current granulation conditions of the sintering machine 30; charging the granulated particles into a container 70, based on the current charging conditions of the sintering machine 30, thereby forming a simulated raw material charging layer; obtaining three-dimensional data on the structure of the simulated raw material charging layer; and estimating the distribution pattern of gas flow velocity inside the simulated raw material charging layer based on the three-dimensional data.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a method for managing the operation of a sintering machine. [Background technology]

[0002] In the operation of a sintering machine, the yield can be improved by uniformly firing the raw material charging layer. To achieve uniform firing of the raw material charging layer, it is important to understand the distribution of gas flow velocity in the raw material charging layer.

[0003] Patent Document 1 discloses an invention in which the thickness of a raw material charging layer is measured using a laser rangefinder, the density of the raw material charging layer is estimated based on the layer thickness, the aeration state of the raw material charging layer is determined based on the density, and the aeration state is made uniform using an aeration rod. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 5458780 Summary of the Invention [Problem to be solved by the invention]

[0005] Patent Document 1 only measures the layer thickness and is unable to estimate the internal structure of the raw material charging layer. Therefore, it is not possible to accurately estimate the gas flow velocity distribution inside the raw material charging layer, making it difficult to accurately estimate which part of the raw material charging layer will experience uneven burning.

[0006] An object of the present disclosure is to provide an operation management method for a sintering machine that can accurately estimate the distribution of gas flow velocity in a raw material charging layer. [Means for solving the problem]

[0007] [1] Granulating granules from sintering raw materials based on current granulation conditions of a sintering machine; charging the granulated particles into a container based on the current charging conditions of the sintering machine to form a simulated raw material charging layer; Acquiring three-dimensional data of the structure of the simulated raw material charging layer; estimating a gas flow velocity distribution inside the simulated raw material charging bed based on the three-dimensional data; A method for managing the operation of a sintering machine, including:

[0008] [2] The operation management method for a sintering machine according to the above [1], further comprising a step of controlling the depth of each of a plurality of ventilation rods arranged in a line in the width direction perpendicular to the conveying direction of a pallet provided in the sintering machine, based on the estimated distribution of the gas flow velocity inside the simulated raw material charging layer.

[0009] [3] The method for managing operation of a sintering machine according to [1] or [2] above, wherein the step of acquiring the three-dimensional data acquires the three-dimensional data using an X-ray CT device.

[0010] [4] The method for managing operation of a sintering machine according to any one of [1] to [3] above, wherein the step of estimating the gas flow velocity distribution estimates the gas flow velocity distribution inside the simulated raw material charging bed based on the current exhaust conditions of the sintering machine in addition to the three-dimensional data.

[0011] [5] The method for managing operation of a sintering machine according to [4] above, wherein the exhaust conditions include information on the negative pressure in a wind box of the sintering machine.

[0012] [6] The method for managing operation of a sintering machine according to any one of [1] to [5] above, wherein the granulation conditions include information on the moisture content of the sintering raw material when granulating the granulated particles.

[0013] [7] The operation management method for a sintering machine according to any one of [1] to [6] above, wherein the charging conditions include information on the thickness of the raw material charging layer in the sintering machine. [Effects of the Invention]

[0014] According to the operation management method for a sintering machine according to the present disclosure, the distribution of gas flow velocity in the raw material charging layer can be estimated with high accuracy. [Brief explanation of the drawings]

[0015] [Figure 1] FIG. 1 is a diagram schematically illustrating a configuration example of a sintering facility according to an embodiment of the present disclosure. [Figure 2] FIG. 10 is a diagram schematically illustrating an example of the arrangement of ventilation rods. [Figure 3] FIG. 2 is a diagram schematically illustrating a configuration example of a control device according to an embodiment of the present disclosure. [Figure 4] 1 is a flowchart showing an example of a procedure of an operation management method for a sintering machine according to an embodiment of the present disclosure. [Figure 5] FIG. 10 is a diagram showing an example of a calculation result of gas flow velocity in an example. [Figure 6] FIG. 10 is a diagram showing an example of the results of gas flow velocity when a ventilation rod is used in an example. DETAILED DESCRIPTION OF THE INVENTION

[0016] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings.

[0017] 1 is a diagram schematically illustrating a configuration example of a sintering equipment 1 according to an embodiment of the present disclosure. The sintering equipment 1 is an equipment capable of producing sintered ore from sintering raw materials including an iron-containing raw material and a carbon-containing raw material.

[0018] The sintering equipment 1 includes a control device 10, a granulator 20, a sintering machine 30, a crusher 40, a cooler 50, a sieving device 60, a container 70, and a three-dimensional data acquisition device 80.

[0019] The control device 10 is capable of communicating with the granulator 20, the sintering machine 30, the crusher 40, the cooler 50, the sieving device 60, and the three-dimensional data acquisition device 80. The control device 10 controls the granulator 20, the sintering machine 30, the crusher 40, the cooler 50, the sieving device 60, and the three-dimensional data acquisition device 80.

[0020] The configuration and functions of the control device 10 will be described in detail later.

[0021] The granulator 20 granulates granulated particles from sintering raw materials containing iron-containing raw materials and carbon-containing raw materials. When the granulator 20 granulates the granulated particles, granulation water is added to the sintering raw materials. The sintering raw materials may further contain calcium oxide (CaO)-containing raw materials as auxiliary raw materials. The granulated particles granulated by the granulator 20 are transported to the sintering machine 30.

[0022] The granulator 20 may be any granulator capable of producing granulated particles, and may be, for example, a drum mixer.

[0023] The sintering machine 30 may be any sintering machine that sinters granulated particles, for example, a Dwight Lloyd type sintering machine. The sintering machine 30 includes a sintering raw material supply device 31, a pallet 32, an ignition furnace 33, and a wind box 34. Although not shown in FIG. 1, the sintering machine 30 also includes an air rod 35 and an air rod drive device 36 as shown in FIG. 2.

[0024] The sintering raw material supply device 31 charges the granulated particles supplied from the granulator 20 into a pallet 32 ​​.

[0025] The pallet 32 ​​is an endlessly movable pallet. When granulated particles are charged onto the pallet 32 ​​from the sintering raw material supply device 31, a raw material charging layer is formed on the pallet 32.

[0026] The ignition furnace 33 ignites the carbon-containing raw material contained in the surface layer of the raw material charging layer formed on the pallet 32.

[0027] The wind box 34 sucks air downward from the raw material charging layer formed on the pallet 32. When the wind box 34 sucks air downward from the raw material charging layer, the combustion and molten materials in the raw material charging layer move downward. In this way, the combustion and molten materials move within the raw material charging layer, causing the raw material charging layer to be sintered. As a result, a sintered cake is obtained from the raw material charging layer.

[0028] The ventilation rod 35 shown in Fig. 2 is disposed downstream of the sintering raw material supply device 31. Here, the downstream side means the downstream side in the conveying direction of the pallet 32. The sintering machine 30 is provided with a plurality of ventilation rods 35 arranged in a width direction perpendicular to the conveying direction of the pallet 32.

[0029] 2 is a view of the plurality of ventilation rods 35 as viewed from the conveyance direction of the pallet 32. As shown in FIG. 2, the plurality of ventilation rods 35 are arranged in the width direction of the pallet 32, which is perpendicular to the conveyance direction.

[0030] 2 shows six ventilation rods 35 arranged side by side, this is just an example, and the number of ventilation rods 35 arranged side by side is not limited to five. The number of ventilation rods 35 arranged side by side may be four or less, or six or more.

[0031] 2 is a drive device that drives the air rods 35 up and down. As shown in FIG. 2, the sintering machine 30 is provided with an air rod drive device 36 for each air rod 35.

[0032] The ventilation rod drive device 36 can control the depth of the ventilation rods 35 by driving the ventilation rods 35 up and down. Here, the depth of the ventilation rods 35 means the depth to which the ventilation rods 35 are inserted into the raw material charging layer 101 formed on the pallet 32. In the example shown in Figure 2, the second ventilation rod 35 from the left and the first ventilation rod 35 from the right are deepest.

[0033] The air rod drive device 36 controls the depth of each air rod 35 in response to a command from the control device 10.

[0034] Returning to Figure 1 again, the explanation will continue.

[0035] The crusher 40 crushes the sintered cake supplied from the sintering machine 30. The crusher 40 supplies the crushed sintered cake to a cooler 50.

[0036] The cooler 50 cools the crushed sintered cake supplied from the crusher 40. The crushed sintered cake cooled by the cooler 50 is supplied to a sieving device 60.

[0037] The sieving device 60 sieves the crushed sintered cake material cooled by the cooler 50 according to the particle size of the crushed material. For example, the sieving device 60 sieves the crushed sintered cake material into sintered ore having a particle size of 5 mm or more and return ore having a particle size of less than 5 mm.

[0038] In this way, sintered ore is finally produced by sieving using the sieving device 60. The return ore sieved using the sieving device 60 may be mixed with the sintering raw material and reused as the raw material for sintered ore.

[0039] The container 70 has a shape similar to that of the pallet 32 ​​of the sinter machine 30. A simulated raw material charging layer can be formed in the container 70 in the same way as forming a raw material charging layer by charging granulated particles into the pallet 32 ​​of the sinter machine 30. The simulated raw material charging layer is a reproduction in the container 70 of the raw material charging layer formed on the pallet 32 ​​of the sinter machine 30 that is currently in operation.

[0040] The granulated particles charged into the container 70 are granulated based on the current granulation conditions of the sintering machine 30. The granulation conditions are conditions when the granulated particles are granulated in the granulator 20 of the sintering machine 30. The granulation conditions may include information on the moisture content when the granulated particles are granulated in the granulator 20 of the sintering machine 30.

[0041] When granulated particles are charged into the vessel 70 to form a simulated raw material charging layer, the granulated particles are charged under charging conditions similar to the current charging conditions based on the current charging conditions of the sintering machine 30. The charging conditions may include information on the thickness of the raw material charging layer when the raw material charging layer is formed on the pallet 32 ​​of the sintering machine 30.

[0042] By forming a simulated raw material charging layer in the vessel 70 in this manner, a simulated raw material charging layer having a structure similar to that of the raw material charging layer formed on the pallet 32 ​​of the sintering machine 30 currently in operation can be formed in the vessel 70.

[0043] The three-dimensional data acquisition device 80 is a device capable of acquiring three-dimensional data of the structure of the simulated raw material charging layer formed in the container 70. The three-dimensional data acquisition device 80 may be any device capable of acquiring three-dimensional data, and may be, for example, an X-ray CT device.

[0044] The three-dimensional data of the structure of the simulated raw material charging layer includes, for example, data on the positions of voids and granulated particles inside the simulated raw material charging layer.

[0045] When the three-dimensional data acquisition device 80 acquires three-dimensional data of the structure of the simulated raw material charging layer formed in the container 70, it transmits the acquired three-dimensional data to the control device 10.

[0046] Next, a description will be given of the configuration and functions of the control device 10. First, an outline of the functions of the control device 10 will be given.

[0047] The control device 10 acquires three-dimensional data of the structure of the simulated raw material charging layer formed in the vessel 70 from the three-dimensional data acquisition device 80.

[0048] The control device 10 estimates the gas flow velocity distribution inside the simulated raw material charging bed based on the acquired three-dimensional data. At this time, the control device 10 may estimate the gas flow velocity distribution inside the simulated raw material charging bed based on the current exhaust conditions of the wind box 34 of the sintering machine 30 in addition to the acquired three-dimensional data.

[0049] The exhaust conditions of the wind box 34 refer to the conditions of the wind box 34 when the wind box 34 of the sintering machine 30 sucks air downward from the raw material charging layer formed on the pallet 32. The exhaust conditions may include information on the negative pressure of the wind box 34.

[0050] When estimating the gas flow velocity distribution inside the simulated raw material charging bed based on the acquired three-dimensional data and exhaust conditions, the control device 10 may estimate the gas flow velocity distribution inside the simulated raw material charging bed using general fluid analysis software. The control device 10 may, for example, perform CFD (Computational Fluid Dynamics) calculations to estimate the gas flow velocity distribution inside the simulated raw material charging bed.

[0051] The gas flow velocity distribution inside the simulated raw material charging bed estimated by the control device 10 is considered to be similar to the gas flow velocity distribution inside the raw material charging bed formed on the pallet 32 ​​of the sintering machine 30 currently in operation.

[0052] The control device 10 controls the depth of each of the multiple ventilation rods 35, which are arranged in a width direction perpendicular to the conveying direction of the pallet 32, based on the estimated distribution of gas flow velocity inside the simulated raw material loading layer.

[0053] This allows the control device 10 to uniformize the gas flow rate in the width direction in the raw material charging layer formed on the pallet 32 ​​of the sintering machine 30 currently in operation, thereby uniforming the firing in the width direction.

[0054] Next, the configuration of the control device 10 will be described.

[0055] 3 is a diagram schematically illustrating an example of the configuration of the control device 10 according to an embodiment of the present disclosure. The control device 10 may be a general-purpose computer such as a workstation or a personal computer, or may be a dedicated computer configured to function as the control device 10 of the sintering equipment 1.

[0056] The control device 10 includes a control unit 11, an input unit 12, an output unit 13, a storage unit 14, and a communication unit 15.

[0057] The control unit 11 includes at least one processor, at least one dedicated circuit, or a combination thereof. The processor is a general-purpose processor such as a central processing unit (CPU) or a graphics processing unit (GPU), or a dedicated processor specialized for a specific process. The dedicated circuit is, for example, a field-programmable gate array (FPGA) or an application-specific integrated circuit (ASIC).

[0058] The control unit 11 reads programs, data, etc. stored in the memory unit 14 and executes various functions. The control unit 11 controls the granulator 20, the sintering machine 30, the crusher 40, the cooler 50, the sieving device 60, and the three-dimensional data acquisition device 80.

[0059] Based on the estimated distribution of gas flow velocity inside the simulated raw material loading layer, the control unit 11 controls the depth of each of the multiple ventilation rods 35, which are arranged in a line in the width direction perpendicular to the conveying direction of the pallet 32.

[0060] The input unit 12 includes one or more input interfaces that detect user input and acquire input information based on the user's operation. The input unit 12 includes, for example, physical keys, capacitance keys, a touch screen that is integrated with the display of the output unit 13, or a microphone that accepts voice input.

[0061] The output unit 13 includes one or more output interfaces that output information to notify the user. The output unit 13 includes, for example, a display that outputs information as an image, a speaker that outputs information as sound, etc. The display included in the output unit 13 may be, for example, an LCD (Liquid Crystal Display), a CRT (Cathode Ray Tube) display, etc.

[0062] The storage unit 14 is, for example, a flash memory, a hard disk, an optical memory, etc. A part of the storage unit 14 may be located outside the control device 10. In this case, the part of the storage unit 14 may be a hard disk, a memory card, etc. connected to the control device 10 via an arbitrary interface.

[0063] The storage unit 14 stores programs for the control unit 11 to execute each function, data used by the programs, and the like.

[0064] The communication unit 15 includes at least one of a communication module compatible with wired communication and a communication module compatible with wireless communication.

[0065] The operation management method for the sintering machine 30 executed by the sintering equipment 1 according to this embodiment will be described with reference to the flowchart shown in FIG.

[0066] Step S101: Based on the current granulation conditions of the sintering machine 30, granulated particles are granulated from the sintering raw material.

[0067] Step S102: Based on the current charging conditions of the sintering machine 30, the granulated particles granulated in step S101 are charged into the container 70 to form a simulated raw material charging layer.

[0068] Step S103: The three-dimensional data acquisition device 80 acquires three-dimensional data of the structure of the simulated raw material charging layer formed in the container 70. The three-dimensional data acquisition device 80 transmits the three-dimensional data of the structure of the simulated raw material charging layer to the control device 10. The control device 10 acquires the three-dimensional data of the structure of the simulated raw material charging layer from the three-dimensional data acquisition device 80.

[0069] Step S104: The control device 10 estimates the distribution of gas flow velocity inside the simulated raw material charging bed based on the acquired three-dimensional data of the structure of the simulated raw material charging bed.

[0070] In step S104, the control device 10 estimates the distribution of gas flow rates inside the simulated raw material loading layer, and then controls the depth of each of the multiple ventilation rods 35, which are arranged in a width direction perpendicular to the conveying direction of the pallet 32, so as to uniform the gas flow rate in the width direction in the raw material loading layer.

[0071] (Example) An example of an operation management method for the sintering machine 30 in the sintering equipment 1 according to this embodiment will be described with reference to FIGS.

[0072] FIG. 5 is a diagram showing an example of the calculation results of the gas flow velocity.

[0073] In the graph shown in Fig. 5, the horizontal axis represents the height position of the simulated raw material charging bed, and the vertical axis represents the gas flow velocity.

[0074] The gas flow velocity shown in FIG. 5 was calculated under the following conditions: Sintering raw materials: mixture of fine ore, lime, return ore and carbonaceous material Container size: diameter 150mm, height 600mm Granulation conditions: The same moisture content as when granulating with Granulator 20 Charging conditions: The same thickness as when forming a raw material charging layer on the pallet 32 ​​by the sintering raw material supply device 31

[0075] The calculation of the gas flow rate shown in Fig. 5 was performed according to the following procedure. First, the sintering raw material under the above conditions was granulated with the same moisture content as when granulating in the granulator 20. Then, the granulated particles were charged into the container 70 under the above conditions. At this time, the thickness of the simulated raw material charging layer formed in the container 70 was set to the same thickness as when the raw material charging layer was formed on the pallet 32 ​​by the sintering raw material supply device 31.

[0076] Next, an X-ray CT scanner was used as the three-dimensional data acquisition device 80 to perform CT imaging of the simulated raw material charging layer formed in the vessel 70. The X-ray CT scanner is a device with a 320 kV radiation source. CFD calculations were performed on the acquired three-dimensional data to calculate the gas flow velocity in the simulated raw material charging layer. In this case, information on the negative pressure of the wind box 34 of the sintering machine 30 was used as the exhaust air condition. In addition, the gas temperature and gas viscosity values ​​were also used in the CFD calculations.

[0077] The graph shown as "right side" in Fig. 5 is the calculation result for the region corresponding to the region on the right side when viewed from the upstream side in the conveyance direction of the pallet 32. The graph shown as "left side" in Fig. 5 is the calculation result for the region corresponding to the region on the left side when viewed from the upstream side in the conveyance direction of the pallet 32.

[0078] Referring to Figure 5, the gas flow rate is almost constant in the height direction on the "right side." Therefore, in this case, it is assumed that firing will be almost uniform in the "right side" region. Also, on the "left side," the gas flow rate is almost constant in the upper layer, but there are some areas in the lower layer where the gas flow rate is high. This is presumably due to blockages occurring between particles, causing localized airflow. Therefore, it is assumed that firing will not be uniform in the "left side" region.

[0079] Figure 6 shows the results when the depth of the ventilation rods was determined based on the calculation results of Figure 5 and the ventilation rods were charged into the simulated raw material charging layer according to the determined depth. For comparison, Figure 6 also shows the graph shown in Figure 5.

[0080] The calculation of the gas flow rates shown as "right side (using vent rods)" and "left side (using vent rods)" in Figure 6 was performed using the following procedure. First, a simulated raw material charging layer was formed in the vessel 70 in the same manner as when performing the calculation in Figure 5. Then, based on the depth of the vent rods determined based on the calculation results in Figure 5, vent rods were charged into the simulated raw material charging layer in the vessel 70. This makes it possible to simulate the effect of charging the vent rods 35 in the sintering machine 30.

[0081] The ventilation rod was then removed, and CT imaging was performed using an X-ray CT scanner as the three-dimensional data acquisition device 80. CFD calculations were performed on the acquired three-dimensional data to calculate the gas flow velocity in the simulated raw material charging bed. In this case, information on the negative pressure in the wind box 34 of the sintering machine 30 was used as the exhaust air condition. The gas temperature and gas viscosity values ​​were also used in the CFD calculations.

[0082] The graph labeled "Right side (with vent rod)" in Figure 6 shows the calculation results after inserting the vent rod in the right area. The graph labeled "Left side (with vent rod)" in Figure 5 shows the calculation results after inserting the vent rod in the left area.

[0083] Referring to Figure 6, when comparing the "right side (with vent rod)" with the "right side," the "right side (with vent rod)" has improved uniformity of gas flow velocity in the height direction compared to the "right side." Also, when comparing the "left side (with vent rod)" with the "left side," the "left side (with vent rod)" has significantly improved uniformity of gas flow velocity in the height direction compared to the "left side."

[0084] Thereafter, the ventilation rods 35 of the operating sintering machine 30 were controlled to the same depth as in Figure 6, and uniform sintering was achieved. In this way, by controlling the depth of the ventilation rods 35 of the operating sintering machine 30 based on the gas flow velocity distribution estimated using the simulated raw material charging bed, the gas flow velocity distribution could be made uniform. This also improved the sintered ore yield.

[0085] As described above, the operation management method for the sintering machine 30 according to this embodiment includes the steps of granulating granulated particles from sintering raw materials based on the current granulation conditions of the sintering machine 30, charging the granulated particles into the container 70 based on the current charging conditions of the sintering machine 30 to form a simulated raw material charging layer, acquiring three-dimensional data of the structure of the simulated raw material charging layer, and estimating the gas flow velocity distribution within the simulated raw material charging layer based on the three-dimensional data. In this way, the operation management method for the sintering machine 30 according to this embodiment acquires three-dimensional data of the structure of a simulated raw material charging layer that replicates the raw material charging layer formed on the pallet 32 ​​of the sintering machine 30 during operation, and estimates the gas flow velocity distribution within the simulated raw material charging layer based on the acquired three-dimensional data. Therefore, the operation management method for the sintering machine 30 according to this embodiment can accurately estimate the gas flow velocity distribution within the raw material charging layer.

[0086] Furthermore, the operation control method for the sintering machine 30 according to this embodiment controls the depth of each of the multiple ventilation rods 35 based on the estimated gas flow velocity distribution inside the simulated raw material charging bed so that the gas flow velocity distribution approaches uniformity. As a result, the operation control method for the sintering machine 30 according to this embodiment can achieve uniform firing in the sintering machine 30 and improve the yield of sintered ore.

[0087] The present disclosure is not limited to the above-described embodiments. For example, multiple blocks shown in the block diagrams may be integrated, or a single block may be divided. Instead of executing multiple steps shown in the flowcharts in chronological order as described, steps may be executed in parallel or in a different order depending on the processing capabilities of the device executing each step, or as needed. Other modifications are possible within the scope of the present disclosure.

[0088] For example, in the above embodiment, the sintering equipment 1 is shown to have one control device 10, but the sintering equipment 1 may have multiple control devices 10. In this case, the multiple control devices 10 may share and execute the functions of the above-mentioned control device 10. For example, the process of estimating the gas flow velocity distribution inside the simulated raw material charging bed formed in the vessel 70 and the process of controlling the sintering machine 30 may be executed by different control devices 10. [Explanation of symbols]

[0089] 1. Sintering equipment 10 Control device 11 Control section 12 Input section 13 Output section 14 Storage section 15 Communications Department 20 Granulator 30 Sintering machine 31 Sintering raw material supply device 32 palettes 33 Ignition Furnace 34 Wind Box 35 Ventilation rod 36 Ventilation rod drive unit 40 Crusher 50 Cooler 60 Sieving device 70 containers 80 3D data acquisition device 101 Raw material charging layer

Claims

1. granulating granules from the sintering raw material based on the current granulation conditions of the sintering machine; charging the granulated particles into a container based on the current charging conditions of the sintering machine to form a simulated raw material charging layer; Obtaining three-dimensional data of the structure of the simulated raw material charging layer; estimating a gas flow velocity distribution inside the simulated raw material charging bed based on the three-dimensional data; Including, The method for managing operation of a sinter machine, wherein the container has the same shape as a pallet provided in the sinter machine and into which the granulated particles are charged to form a raw material charging layer.

2. 2. The method for managing operation of a sintering machine according to claim 1, further comprising a step of controlling, for each of the ventilation rods, the depth of a plurality of ventilation rods arranged in a width direction perpendicular to the conveying direction of the pallet, based on the estimated distribution of the gas flow velocity inside the simulated raw material charging bed.

3. The method for managing operation of a sintering machine according to claim 1 , wherein the step of acquiring the three-dimensional data comprises acquiring the three-dimensional data using an X-ray CT device.

4. 2. The method for managing operation of a sintering machine according to claim 1, wherein the step of estimating the gas flow velocity distribution estimates the gas flow velocity distribution inside the simulated raw material charging bed based on current exhaust conditions of the sintering machine in addition to the three-dimensional data.

5. The method for managing operation of a sintering machine according to claim 4 , wherein the exhaust air conditions include information on negative pressure in a wind box of the sintering machine.

6. The method for managing operation of a sinter machine according to claim 1 , wherein the granulation conditions include information on the moisture content of the sintering raw material when the granulated particles are granulated.

7. The method for managing operation of a sintering machine according to claim 1 , wherein the charging conditions include information on the thickness of the raw material charging layer in the sintering machine.

Images