Device for detecting surface profile of charge and method for operating same

Abstract

The invention provides a detection device which is used for performing three-dimensional detection on the surface profile of a loaded object and is simplified in structure and low in cost. Also provided is an operation method for supplying a charge to a container of a facility on the basis of the detection result using such a detection device. A surface profile detection device (100) for a load is provided with: a transmission / reception unit (101) that transmits and receives a detection wave (M); an antenna (104) that is connected to the transmission / reception unit (101) and that transmits and receives the detection wave (M); a circumferential scanning unit that scans the detection wave (M) in the circumferential direction of a container (1); and a radial scanning unit that scans the detection wave (M) in the radial direction of the container (1) by tilting an angle-variable reflecting plate (106). The radial scanning unit tilts an angle-variable reflecting plate (106) by means of a spline (123) and a swing mechanism (traverse cam 121) driven by a drive source for driving the circumferential scanning unit. In addition, the circumferential scanning unit and the radial scanning unit cooperate with each other, and the surface profile of the loaded object is three-dimensionally detected.

Description

Technical Field

[0001] The present invention relates to a detection device for three-dimensionally detecting the surface profile of contents accumulated in containers of various equipment and a method for operating using the detection device. Background Art

[0002] A detection device is known that is used to send detection waves to the surface of loaded objects loaded and stacked in containers of various equipment, such as iron ore in a blast furnace, coke, molten steel in a converter, coal in a hopper, garbage in an incinerator, and grains in storages such as silos, and receive its reflected waves to detect the surface contour of the loaded objects.

[0003] For example, in a blast furnace, iron ore and coke are usually loaded alternately from the top of the furnace, and the loading operation is performed in such a way that the surface profile of the loaded objects becomes an inverted cone like a sand vortex. In such a blast furnace, by forming the iron ore and coke into an appropriate stacking state, the airflow in the furnace can be stabilized, the fuel cost can be reduced, and the life of the furnace body can be extended. In order to obtain the appropriate stacking state, it is necessary to accurately measure the surface profile of the iron ore and coke in a short time, and replenish the iron ore and coke to the theoretical stacking state obtained in advance, that is, the "theoretical stacking profile".

[0004] In order to detect the surface profile of the charge in the blast furnace, the present applicant has previously proposed a detection device as shown in Patent Document 1. In the detection device described in Patent Document 1, an angle-variable reflector and an angle-fixed reflector are used to change the inclination angle of the reflection surface of the detection wave toward the blast furnace side, and the angle-variable reflector and the angle-fixed reflector are mounted on a rotating plate that rotates horizontally relative to the opening of the blast furnace, and the surface profile of the charge accumulated in the blast furnace is quickly detected in a linear or planar manner by rotating the rotating plate.

[0005] Prior art literature

[0006] Patent Literature

[0007] Patent Document 1: Japanese Patent No. 6857933 Summary of the invention

[0008] Technical problem that the invention aims to solve

[0009] In the detection device of Patent Document 1, the detection wave is transmitted in the radial direction of the blast furnace by the inclination angle of the angle-variable reflector while the rotating plate is rotated. Therefore, a motor is required to rotate the rotating plate (the motor of Patent Document 1). Figure 2 113) and a motor for changing the tilt angle of the angle-variable reflector (Patent Document 1 Figure 2The two motors are shown in the figure 125. In addition, two control units are also required for controlling the motors.

[0010] The present invention is made in view of such a situation, and its purpose is to simplify the structure of the device for three-dimensionally detecting the surface profile of the loaded object, thereby providing an inexpensive detection device. The present invention also aims to provide an operation method for supplying the loaded object to the container of the equipment based on the detection result using such a detection device.

[0011] Technical solutions to the problem

[0012] In order to solve the above-mentioned problems, the present invention provides the following (1) to (9) surface profile detection devices for objects to be loaded.

[0013] (1) A device for detecting the surface contour of a load is characterized in that the device is disposed at an opening of a container of various equipment, transmits a detection wave through the opening to a surface of a load supplied and accumulated in the container, and receives the detection wave reflected by the surface to detect the surface contour of the load.

[0014] The detection device comprises:

[0015] a transceiver unit, the transceiver unit sending and receiving the detection wave;

[0016] An antenna, the antenna being connected to the transceiver unit and transmitting and receiving the detection wave;

[0017] a circumferential scanning unit configured to scan the detection wave in a circumferential direction of the container; and

[0018] a radial scanning unit, wherein the radial scanning unit scans the detection wave in the radial direction of the container by tilting the angle-variable reflection plate, and

[0019] The radial scanning unit tilts the angle-variable reflector plate through a swing mechanism and a spline driven by a driving source driving the circumferential scanning unit, and,

[0020] The circumferential scanning unit cooperates with the radial scanning unit to scan the container in the circumferential direction and in the radial direction of the container using the detection wave.

[0021] (2) The device for detecting the surface profile of an object to be loaded according to (1), wherein the swing mechanism is a traverse cam or a crank mechanism.

[0022] (3) The surface contour detection device for an object to be loaded according to (2), wherein the traverse cam is driven independently of the spline.

[0023] (4) The surface profile detection device for a loaded object according to any one of (1) to (3), characterized in that:

[0024] The detection device is provided with a rotating shell, and the rotating shell has an opening formed on a bottom surface facing the container.

[0025] (5) The surface contour detection device for an object to be loaded according to (4), wherein the antenna is housed in the rotating housing and is not rotated.

[0026] (6) The surface profile detection device for a loaded object according to (4) is characterized in that:

[0027] The rotating shell contains an angle fixed plate that transmits the detection wave from the antenna to the angle fixed reflector, the angle variable reflector, and a connecting rod mechanism connected to the angle variable reflector, and the angle fixed reflector, the angle variable reflector and the connecting rod mechanism are rotated simultaneously.

[0028] (7) The surface profile detection device for a loaded object according to (4) is characterized in that:

[0029] The opening of the rotating shell is covered with a heat insulating material made of a heat-resistant material that transmits the detection wave, and a purge gas is blown toward the heat insulating material from the container side in a radial direction to remove dust attached to the heat insulating material.

[0030] (8) The surface profile detection device of the object to be loaded according to (4) is characterized by comprising:

[0031] an outer box mounted on the opening of the container so as to surround the rotating shell; and

[0032] an air filter that blocks the opening of the container and is made of a heat-resistant material that transmits the detection wave, and

[0033] The purge gas introduced from the purge gas inlet port attached to the outer case is discharged from the air filter.

[0034] (9) The surface profile detection device for a loaded object according to (1) is characterized in that:

[0035] The driving of the circumferential scanning unit and the radial scanning unit is stopped intermittently, and multiple measurements are taken at the stop positions to obtain an average value.

[0036] In order to solve the above-mentioned problems, the present invention provides the following operating method (10).

[0037] (10) An operation method characterized by supplying the object to the container based on a detection result of the surface contour detection device of the object as described in any one of (1) to (9).

[0038] In addition, in the following description, the "surface profile detection device of the loaded object" will also be simply referred to as the "detection device".

[0039] Effects of the Invention

[0040] The detection device of the present invention is provided with a circumferential scanning unit and a radial scanning unit, and can detect the surface contour of the loaded object in three dimensions. The driving source of the circumferential scanning unit and the radial scanning unit is shared, so the device structure is simple and inexpensive.

[0041] Furthermore, in the operating method of the present invention, the surface contour of the object to be loaded can be detected three-dimensionally, the object to be loaded can be reliably supplied to various devices, and good operation can be performed. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a cross-sectional view schematically showing the device structure of the first embodiment of the detection device according to the present invention.

[0043] Figure 1A 1 is a diagram showing the structure of a nozzle for ejecting a purge gas for removing deposits. Figure 1A (a) is a top view observed from the insulation material. Figure 1A (b) is from Figure 1A (a) is the view from the AA arrow direction. Figure 1A (c) is from Figure 1A (a) View from the direction of arrow BB.

[0044] Figure 1B It is shown that the use Figure 1A The schematic diagram of the reflection state of the detection wave M when the nozzle is shown is Figure 1A (a) CC cross-sectional view.

[0045] Figure 1C It is shown that the use Figure 1A The schematic diagram of the reflection state of the detection wave M when the nozzle is shown is Figure 1A (a) DD cross-sectional view.

[0046] Figure 2 It is a cross-sectional view schematically showing the device structure of the second embodiment of the detection device according to the present invention.

[0047] Figure 3 It is a cross section schematically showing the device structure of the third embodiment of the detection device according to the present invention.

[0048] Figure 4 This is a schematic diagram showing a device configuration of a fourth embodiment of the detection device of the present invention based on the first embodiment.

[0049] Figure 5 Schematic diagram of the scanning principle of the detection device of the present invention.

[0050] Figure 6 This is a diagram showing scanning lines when the operation of the crank mechanism is changed in the second embodiment.

[0051] Description of Reference Numerals

[0052] 100, 200, 300 detection device (surface profile detection device for loaded objects)

[0053] 101 Transceiver Unit

[0054] 102 Fixed shaft

[0055] 103 Waveguide

[0056] 104 Antenna

[0057] 104a Dielectric lens

[0058] 105 Angle Fixed Reflector

[0059] 106 Angle variable reflector

[0060] 111 Motor

[0061] 114 Up and down rotation axis

[0062] 115 Rotating Shell

[0063] 120 connecting rod mechanism

[0064] 121, 121A traverse cam

[0065] 122, 122A traverse cam up and down reversal accessories

[0066] 123 Spline

[0067] 132 Rotation detection encoder

[0068] 133 Up and down detection encoder

[0069] 141 Insulation Materials

[0070] 142 Nozzle

[0071] 145 Purge gas inlet

[0072] 146 Air filter

[0073] 147 Metal Mesh

[0074] 220 Crank mechanism

[0075] 226 First Crank

[0076] 227 Second Crank

[0077] 232 Bevel gear DETAILED DESCRIPTION

[0078] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

[0079] [Detection device]

[0080] (Basic structure)

[0081] The basic structure of the detection device is composed of: a circumferential scanning unit that scans the detection wave M in the circumferential direction of the container; and a radial scanning unit that scans the detection wave M in the radial direction of the container. The circumferential scanning unit and the radial scanning unit are operated together to scan the detection wave in the circumferential direction of the container while scanning the detection wave in the radial direction of the container. As described later, based on the height Z of the insertion surface of the loaded object in the container (refer to Figure 5 ) and the inclination angle of the reflecting surface of the angle-variable reflector are calculated moment by moment, so that the surface contour of the loaded object can be detected in three dimensions. In addition, the driving source of the circumferential scanning unit and the radial scanning unit is shared.

[0082] (First Embodiment)

[0083] Examples of such detection devices include Figure 1 Detection device 100 is shown in a cross-sectional view of the main parts. In addition, the detection wave M is appropriately selected according to the type of equipment and the load, but here, microwaves and millimeter waves are exemplified as the detection wave M. Microwaves and millimeter waves can also be appropriately used in equipment such as blast furnaces accompanied by mist and dust at high temperatures.

[0084] As shown in the figure, the antenna 104 is connected to the transceiver unit 101 that transmits and receives the detection wave M through the waveguide 103 inserted into the fixed shaft 102. In addition, in the figure, the antenna 104 is provided with a dielectric lens 104a, which contributes to the miniaturization of the antenna 104 and improves the directivity of the detection wave M, but the dielectric lens 104a is not necessarily required. In addition, in addition to the horn antenna shown in the figure, the antenna 104 can also be set as a parabolic antenna or a Cassegrain antenna.

[0085] The fixed angle reflector 105 is disposed below the antenna 104 in the figure. The fixed angle reflector 105 is housed in the rotating case 115, and a reflective surface 105a of the fixed angle reflector 105 is disposed opposite to the antenna surface of the antenna 104 at an angle of 45 degrees.

[0086] In addition, an angle variable reflector 106 is disposed opposite to the angle fixed reflector 105. The angle variable reflector 106 is a reflector whose inclination angle of the reflective surface 106a is variable in the direction indicated by the symbol X in the figure. In the angle variable reflector 106, the first link 124 of the link mechanism 120 is fixed to the center of the surface (back surface) on the side opposite to the reflective surface 106a, and the second link 125 is connected to the first link 124. The reflective surface 106a of the angle variable reflector 106 swings through the link mechanism 120.

[0087] The shape of the rotating housing 115 viewed from above the top plate 116 in the figure is an ellipse, and the side wall is continuous in a manner of surrounding the top plate 116. In addition, the angle fixed reflector 105, the angle variable reflector 106, and the link mechanism 120 are fixed to the straight portion of the side wall. In addition, the center of the top plate 116 is opened, and the fixed shaft 102 is inserted into the opening 117. Therefore, the antenna 104 is accommodated in a state of being suspended inside the rotating housing 115.

[0088] The vertical rotating shaft 114 is loosely fitted on the outer peripheral surface of the fixed shaft 102. Moreover, the vertical rotating shaft 114 is inserted into the opening 117 of the rotating housing 115. In addition, the vertical rotating shaft 114 extends from the lower end toward the side wall 118a of the rotating housing 115 in a crank shape, and the terminal end is connected to the second connecting rod 125 of the angle variable reflector 106.

[0089] The opening 117 of the rotating housing 115 is integrally provided with a gear 113, which is composed of a disk having a through hole at the center. The gear 112 mounted on the rotating shaft of the motor 111 meshes with the gear 113, and the rotating housing 115 is rotated in the Y direction in the figure by driving the motor 111. The rotation of the rotating housing 115 is detected by the rotation detection encoder 132 via the gear 131.

[0090] Furthermore, a spline 123 is attached to the gear 113 , and the outer peripheral surface of the vertical rotation shaft 114 is attached to the inner peripheral surface of the spline 123 .

[0091] Therefore, when the rotating housing 115 is rotated in the Y direction by the motor 111, the fixed angle reflector 105, the variable angle reflector 106, the link mechanism 120, and the vertical rotation shaft 114 rotate together in the same direction, thereby scanning the contents in the circumferential direction.

[0092] On the other hand, even if the axis of the rotating case 115 rotates, the antenna 104 does not rotate together with the fixed shaft 102 but remains in a fixed state.

[0093] In addition, a traverse cam 121 is installed on the outer peripheral surface of the vertical rotating shaft 114. The traverse cam 121 has a spiral groove processed on the rotating shaft, and the two ends are connected in the spiral groove to form an infinite loop. And when the traverse cam 121 rotates, the traverse cam 121 repeatedly moves from one end to the other end on the rotating shaft. This movement is "swinging". In addition, a traverse cam up and down reversing accessory 122 of the traverse cam 121 is provided at an appropriate position of the traverse cam 121. In addition, Figure 1 In the figure, the state where the traverse cam 121 moves to the upper end is shown. When the traverse cam 121 reaches the upper end, the direction is reversed and moves downward, and then reversed upward again by the traverse cam up-down reversal fitting 122. The up-down movement is shown by the reference symbol H, and the up-down movement amount is detected and controlled by the up-down detection encoder 133.

[0094] The movement of the traverse cam 121 is transmitted to the link mechanism 120 via the vertical rotation shaft 114, and the inclination angle of the reflection surface 106a of the angle variable reflection plate 106 changes in the left-right direction in the figure in conjunction with the movement of the link mechanism 120. In addition, as the angle variable reflection plate 106 tilts, the transmission angle θ of the detection wave M changes. When the inclination angle of the reflection surface 106a of the angle variable reflection plate 106 and the inclination angle of the reflection surface 105a of the angle fixed reflection plate 105 are both 45°, the transmission angle θ of the detection wave M becomes zero (θ0). When the reflection surface 106a of the angle variable reflection plate 106 is at the maximum elevation angle relative to the reflection surface 105a of the angle fixed reflection plate 105, the transmission angle θ of the detection wave M becomes maximum (θ max ). max It is appropriately set according to the inner diameter of the container. max The length of the traverse cam 121 can be changed or the length of the first link 124 and the second link 125 can be changed. In this way, by tilting the reflection surface 106a of the angle-variable reflection plate 106, the loaded object can be scanned in the radial direction.

[0095] In addition, the rotating housing 115 is accommodated in the outer box 144 .

[0096] In this way, the same motor 111 can be used to drive the following drive sources: a drive source for rotating the rotating housing 115 for performing circumferential scanning; and a drive source for moving the vertical direction of the vertical rotating shaft 114 through the traverse cam 121 for performing radial scanning. In addition, since the motor 111 rotates continuously in one direction, a control disk (not shown) is not required.

[0097] In addition, the detection device 100 is used by installing the outer box 144 at the opening 2 of the container 1, but the floating matter inside the container 1 may enter from the opening 2. Therefore, the opening 119 of the bottom surface 118b of the rotating shell 115 of the detection device 100 is covered with a heat insulating material 141 made of a heat-resistant material that transmits the detection wave M, and a nozzle 142 is arranged on the container side (the lower side in the figure) of the heat insulating material 141 to spray a purge gas G to remove the attached matter of the heat insulating material 141. In addition, the opening 119 of the bottom surface 118b of the rotating shell 115 is opened as shown in the figure because the rotating shell 115 rotates, that is, the lower part of the angle variable reflector 106, that is, the part corresponding to half of the long axis of the top plate 116, and the opening 119 is covered by the heat insulating material 141.

[0098] In order to suppress the influence of the nozzle 142 on the transmitted detection wave M, it is preferable to use, for example, Figure 1A The nozzle 142 is shown. In addition, Figure 1A is a diagram showing the structure of the nozzle 142, Figure 1A (a) is a top view observed from the heat insulating material 141, Figure 1A (b) is from Figure 1A (a) is the view from the arrow direction of AA, Figure 1A (c) is from Figure 1A (a) A view of BB viewed from the direction of the arrow.

[0099] As shown in the figure, the nozzle 142 is composed of a protrusion 142c, which protrudes from a main body 142a composed of a circular tube (round tube) and gradually expands toward a jet port (injection port) 142b of the purge gas G. The purge gas G is supplied to the main body 142a, and the purge gas G is ejected from the jet port 142b to the outside through the protrusion 142c. Since the rotating shell 115 rotates, the purge gas G only needs to be ejected along the radius of the rotating shell 115 as shown in the figure.

[0100] in addition, Figure 1B yes Figure 1A (a) CC section view, Figure 1C yes Figure 1A DD cross-sectional view of (a), but in the detection wave M that passes through the heat insulating material 141 and enters the nozzle 142, as shown in FIG. Figure 1B As shown by the solid line, a part of the detection wave M is reflected in the same direction as the incident direction by the nozzle outlet 142b at the end of the nozzle. The reflected wave in the same direction as the incident direction interferes with the detection wave M that passes through the heat insulating material 141, causing the transmission intensity of the detection wave M sent from the transceiver unit 101 to attenuate.

[0101] Therefore, in order to further reduce the detection wave M reflected by the ejection port 142b, the opening area of ​​the ejection port 142b can be made smaller. For example, the ejection port 142b is arranged linearly along the main body 142a. Figure 1A As shown in (a), the opening shape of the ejection port 142b is made to be horizontally long with the length direction of the main body 142a as the major diameter. The shorter the minor diameter of the ejection port 142b, the less the detection wave M reflected by the ejection port 142b can be. Figure 1C As shown by the solid line, the detection wave M is reflected by the outer peripheral surface of the main body 142a between the ejection ports 142b, and part of it is reflected in the same direction as the incident direction. Thus, part of the detection wave M is linearly reflected along the longitudinal direction of the main body 142a.

[0102] On the other hand, other detection waves M such as Figure 1B as well as Figure 1C As shown by the dotted line, the light is reflected in various directions by the outer peripheral surface of the main body 142a.

[0103] In this way, by making the detection wave M reflected in the same direction as the incident direction less than the detection wave M reflected in a direction different from the incident direction, the influence of the reflected wave caused by the nozzle 142 can be substantially eliminated.

[0104] (Second Embodiment)

[0105] In the detection device 100 of the first embodiment, the traverse cam 121 is used as the "swing mechanism", but in the second embodiment, Figure 2 As shown, a crank mechanism 220 can also be used. Figure 2 , except for the crank mechanism 220, the components are the same as the detection device 100 of the first embodiment, and the same reference numerals are given and the description thereof is omitted.

[0106] like Figure 2 As shown, in the detection device 200 of the second embodiment, the motor 111 is a component through which the rotating shaft passes, one end of the rotating shaft is connected to the gear 112, and the other end is connected to the bevel gear 232. The bevel gear 232 is composed of a first bevel gear 233 and a second bevel gear 234. Therefore, when the motor 111 rotates, the first bevel gear 233 rotates in the same direction as the rotating housing 115, and transmits to the second bevel gear 234.

[0107] The crank mechanism 220 is composed of a first crank 226 and a second crank 227 . The first crank 226 is connected to the second bevel gear 234 , and the second crank 227 is connected to the vertical rotation shaft 114 .

[0108] Furthermore, when the first bevel gear 233 rotates due to the motor 111, the rotation is transmitted to the second bevel gear 234. Figure 2 As shown on the right side of the figure, the first crank 226 rotates in the R direction and performs a circular motion as shown by the single-dot chain line. Along with this, the second crank 227 also performs a circular motion, and the vertical rotation shaft 114 connected to the second crank 227 moves up and down as shown by the reference numeral H.

[0109] In this way, the same motor 111 can be used to drive a driving source for rotating the rotating housing 115 for performing circumferential scanning and a driving source for moving the vertical rotating shaft 114 in the vertical direction via the crank mechanism 220 for performing radial scanning.

[0110] (Third Embodiment)

[0111] In the first embodiment, the traverse cam 121 is directly mounted on the vertical rotation shaft 114, but in the third embodiment, as shown in FIG. Figure 3 As shown, the traverse cam 121A can also be driven independently. Figure 3 In the embodiment, except for the traverse cam 121A, the components are the same as those in the first embodiment, and the same reference numerals are given, and the description thereof will be omitted.

[0112] like Figure 3 As shown, in the detection device 300 of the third embodiment, the gears 316 and 317 for rotating the traverse cam 121A are meshed with the motor 111. Then, the motor 111 rotates, the traverse cam up-down reversing accessory 122A moves up-down, and the up-down rotating shaft 114 moves up-down in the H direction. Then, the gears 316 and 317 rotate, and the traverse cam 121A rotates and moves up-down in the H direction. In addition, Figure 3 , the state where the traverse cam up-and-down reversal fitting 122A moves to the upper end is shown. When the traverse cam up-and-down reversal fitting 122A reaches the upper end, the direction is reversed and moves downward, and is reversed upward again by the traverse cam up-and-down reversal fitting 122A.

[0113] In addition, while the traverse cam up-and-down reversing fitting 122A moves up and down, the gears 112 and 113 rotate, and the rotating housing 115 rotates in the Y direction. At the same time, the spline 123 rotates, and the traverse cam up-and-down reversing fitting 122A moves up and down, thereby the up-and-down rotating shaft 114 moves up and down, and the angle variable reflecting plate 106 tilts. In the third embodiment, the traverse cam up-and-down reversing fitting 122A is fixed, and in the third embodiment, the traverse cam up-and-down reversing fitting 122A moves up and down, which is different from the first embodiment.

[0114] In this case, the same motor 111 can also be used to drive a driving source that rotates the rotating housing 115 and a driving source that moves the vertical rotating shaft 114 in the vertical direction.

[0115] In addition, the waveguide 103 can be shortened compared to the first embodiment. Therefore, the attenuation of the detection wave M when propagating inside the waveguide 103 can be reduced, the height dimension of the detection device 300 is shortened, and the entire device can be miniaturized.

[0116] (Fourth Embodiment)

[0117] In the first to third embodiments described above, the opening 119 of the rotating shell 115 is blocked by the heat insulating material 141, and the purge gas G is blown from the nozzle 142 to remove the intrusion and adhesion of dust from the container 1. Figure 4 In addition, Figure 4 Although the detection device 100 of the first embodiment is described as an example, the same applies to the second embodiment and the third embodiment.

[0118] As shown in the figure, a purge gas inlet port 145 for entering the purge gas G is attached to the outer box 144, and an air filter 146 made of a heat-resistant material that transmits the detection wave M is used to block the opening 2 of the container 1. In addition, a metal mesh 147 can also be attached to the opening 2 side of the air filter 146, and the metal mesh 147 can be used to protect the air filter 146 from large pieces of dust. Then, the purge gas G entering from the purge gas inlet port 145 is discharged to the inside of the container 1 through the air filter 146. With such a structure, dust can be prevented from invading through the air filter 146, and dust attached to the air filter 146 can be removed.

[0119] (Scanning Principle)

[0120] In the detection device 100 of the first embodiment, the detection device 200 of the second embodiment, and the detection device 300 of the third embodiment, as Figure 5 As schematically shown, while rotating the rotating housing 115 in the Y direction, the vertical rotating shaft 114 is moved up and down as indicated by the reference numeral H, and the circumferential scanning and radial scanning of the detection wave M are performed simultaneously. At this time, if the position of the vertical rotating shaft 114 in the H direction is at the highest point when the transmission angle θ of the detection wave M is 0° (θ=0), and the position of the vertical rotating shaft 114 in the H direction is at the maximum point when the transmission angle θ of the detection wave M is the maximum (θ=θ max ) when the position of the vertical rotation axis 114 in the H direction is at the lowest point, the vertical position of the vertical rotation axis 114 changes continuously with the rotation of the rotating shell 115, and the scanning line S of the detection wave M moves from the center C corresponding to θ=0 toward the center C corresponding to θ max The outermost point F of the spiral advances. And, when it reaches θ = θ maxWhen the vertical movement is reversed, it spirals from P to the center C. There are measurement points P along the spiral scanning line S, and the position information of each measurement point P and the distance information (the time difference between transmission and reception) from the transceiver unit 101 to the measurement point P can be obtained, so that the surface contour of the loaded object can be detected three-dimensionally.

[0121] In the detection device 200 of the second embodiment, the gear ratio of the first bevel gear 233 and the second bevel gear 234 can be adjusted so that the reflecting surface 106a (see FIG. 106 ) of the angle-variable reflecting plate 106 is adjusted during one rotation of the rotating housing 115. Figure 1 ) multiple tilts, such as Figure 6 As shown, the scanning line S can be formed into a petal shape.

[0122] In the third embodiment, since the traverse cam 121A is driven separately, the gear ratio of the gears 316 and 317 can be adjusted so that the reflecting surface 106a (see FIG. 106b ) of the angle-variable reflecting plate 106 (refer to FIG. 106c ) is adjusted during one rotation of the rotating housing 115. Figure 1 ) multiple tilts, can become Figure 6 The petal-shaped scanning line S shown.

[0123] In the above scanning, the motor 111 is stopped intermittently, and the measurement is repeated multiple times (N times) at the stop position, and the received data spectrum waveform obtained is averaged, thereby reducing the background noise by 1 / √N. If this function is added, the opening diameter of the antenna 104 can be further reduced, which can save space. In addition, for a method of reducing the noise level, for example, reference can be made to Japanese Patent No. 7149026.

[0124] [Operation method]

[0125] The present invention also relates to a method for operating various devices using the above-mentioned detection devices 100, 200, 300. That is, the surface profile of the charge supplied to the container of the equipment and stacked is three-dimensionally detected using the detection devices 100, 200, 300, thereby accurately supplying the charge according to the detection results, and stable operation can be performed. For example, in a blast furnace, by adjusting the supply amount of iron ore and coke, "O / C" and other operating conditions, more stable operation can be performed.

[0126] Above, various embodiments have been described, but the present invention is certainly not limited to this example. Those skilled in the art should understand that, within the scope of the claims, various variations or modifications can be thought of, and they certainly also belong to the technical scope of the present invention. In addition, within the scope of not departing from the gist of the invention, the various constituent elements in the above-mentioned embodiments can also be arbitrarily combined.

[0127] In addition, the present application is based on the Japanese patent application (Japanese Patent Application No. 2023-066558) filed on April 14, 2023, the contents of which are incorporated herein by reference.

Claims

1. A device for detecting the surface profile of an object, characterized in that: The detection device is installed at the opening of the container of various equipment, sends detection waves to the surface of the contents supplied and accumulated in the container through the opening, and receives the detection waves reflected by the surface to detect the surface profile of the contents. The detection device comprises: a transceiver unit, the transceiver unit sending and receiving the detection wave; An antenna, the antenna being connected to the transceiver unit and transmitting and receiving the detection wave; a circumferential scanning unit configured to scan the detection wave in a circumferential direction of the container; and a radial scanning unit, wherein the radial scanning unit scans the detection wave in the radial direction of the container by tilting the angle-variable reflection plate, and The radial scanning unit tilts the angle-variable reflector plate through a swing mechanism and a spline driven by a driving source driving the circumferential scanning unit, and, The circumferential scanning unit cooperates with the radial scanning unit to scan the container in the circumferential direction and in the radial direction of the container using the detection wave.

2. The surface profile detection device for a loaded object according to claim 1, characterized in that: The swing mechanism is a traverse cam or a crank mechanism.

3. The surface profile detection device of the loaded object according to claim 2, characterized in that: The traverse cam is driven separately from the spline.

4. The device for detecting the surface profile of an object to be loaded according to any one of claims 1 to 3, characterized in that: The detection device is provided with a rotating shell, and the rotating shell has an opening formed on a bottom surface facing the container.

5. The surface profile detection device for a loaded object according to claim 4, characterized in that: The antenna is accommodated in the rotating housing and is not allowed to rotate.

6. The surface profile detection device of the loaded object according to claim 4, characterized in that: The rotating shell contains an angle fixed plate that transmits the detection wave from the antenna to the angle fixed reflector, the angle variable reflector, and a linkage mechanism connected to the angle variable reflector, and the angle fixed reflector and the angle variable reflector are rotated simultaneously with the linkage mechanism.

7. The surface profile detection device of the loaded object according to claim 4, characterized in that: The opening of the rotating shell is covered with a heat insulating material made of a heat-resistant material that transmits the detection wave, and a purge gas is blown toward the heat insulating material from the container side in a radial direction to remove dust attached to the heat insulating material.

8. The surface profile detection device for a loaded object according to claim 4, characterized in that: have: an outer box mounted on the opening of the container so as to surround the rotating shell; and an air filter that blocks the opening of the container and is made of a heat-resistant material that allows the detection wave to pass therethrough, and The purge gas introduced from the purge gas inlet port attached to the outer case is discharged from the air filter.

9. The surface profile detection device of the loaded object according to claim 1, characterized in that: The driving of the circumferential scanning unit and the radial scanning unit is stopped intermittently, and multiple measurements are taken at the stop positions to obtain an average value.

10. An operating method, characterized in that: The object to be loaded is supplied to the container based on a detection result detected by the surface contour detection device of the object to be loaded according to any one of claims 1 to 3 and 9.

11. An operating method, characterized in that: The object to be loaded is supplied to the container based on the detection result detected by the surface contour detection device of the object to be loaded according to claim 4.

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