Coke oven condition monitoring device

Abstract

An object of the present disclosure is to provide a condition monitoring device capable of accurately detecting a sign of press clogging in a coke oven.SOLUTION: A state monitoring device 10 of a coke oven 1 includes a vibration acquisition part for acquiring vibration information on vibration when an extrusion ram 54 is pushed into a carbonization chamber 70 of the coke oven 1, and a determination part for determining the state of the carbonization chamber 70 based on the vibration information acquired by the vibration acquisition part.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a condition monitoring device for a coke oven. [Background technology]

[0002] There are known devices for monitoring the pushing load in the coke oven chamber. For example, Patent Document 1 describes a pushing load analysis device that analyzes the pushing load to detect abnormalities in the coke oven. This analysis device generates a pushing load change map that shows the temporal change in the pushing load of the pushing ram that pushes the coke, and displays the generated pushing load change map on a display device in a visually distinguishable manner. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-182949 Summary of the Invention [Problem to be solved by the invention]

[0004] Coke ovens have multiple coke oven chambers, and the coke produced in each chamber is pushed out of the oven by a ram beam mounted on an extruder and collected. During this process, carbon adhering to the inside of the coke oven chamber or cracks or chips in the oven walls due to damage can impede the coke's extrusion, causing a "jam" that stops the ram beam from moving. When a jam occurs, the compressed coke presses against the oven walls, potentially causing damage to them. It can take anywhere from half a day to three days to resolve a jam, during which time the affected coke oven chamber cannot be operated, reducing operational efficiency. For this reason, it is advisable to predict jamming and perform maintenance in advance.

[0005] The pushing load analyzer described in Patent Document 1 analyzes the pushing load to detect abnormalities that are signs of clogging, and predicts the occurrence of clogging based on the detection results. However, because the condition of the oven walls and the amount of carbon adhesion differ from one coking chamber to another, the pushing load also differs significantly from one coking chamber to another. Therefore, there is a problem that simply analyzing the pushing load cannot accurately detect signs of clogging due to the influence of differences in the pushing load between coking chambers.

[0006] The present invention has been made in view of the above problems, and one of its objects is to provide a condition monitoring device that can accurately detect signs of clogging in a coke oven. [Means for solving the problem]

[0007] In order to solve the above problem, a condition monitoring device of one embodiment of the present invention includes a vibration acquisition unit that acquires vibration information related to vibrations when an ejection ram is pushed into a carbonization chamber of a coke oven, and a judgment unit that judges the condition of the carbonization chamber based on the vibration information acquired by the vibration acquisition unit.

[0008] Another aspect of the present invention is an extruder including an extrusion ram, a drive unit that drives the extrusion ram, and a condition monitoring device provided in the drive unit. The condition monitoring device includes a vibration acquisition unit that acquires vibration information related to vibrations when the extrusion ram is pushed into the coking chamber, and a determination unit that determines the condition of the coking chamber based on the vibration information.

[0009] Any combination of the above components, or mutual substitution of the components or expressions of the present invention between methods, systems, etc., are also valid aspects of the present invention. [Effects of the Invention]

[0010] According to the present invention, it is possible to provide a condition monitoring device that can accurately detect signs of clogging in a coke oven. [Brief explanation of the drawings]

[0011] [Figure 1]1 is a diagram showing an example of a coke oven equipped with a condition monitoring device according to an embodiment. [Figure 2] FIG. 2 is a block diagram showing the condition monitoring device of FIG. 1; [Figure 3] FIG. 10 is a diagram showing an example of vibration information acquired about a coke oven. [Figure 4] FIG. 10 is a diagram showing the relationship between the number of push operations of a coke oven and vibration information. DETAILED DESCRIPTION OF THE INVENTION

[0012] The present disclosure will be described below based on preferred embodiments with reference to the drawings. In the embodiments and modified examples, identical or equivalent components and members are designated by the same reference numerals, and redundant explanations will be omitted where appropriate. Furthermore, the dimensions of the members in each drawing are enlarged or reduced as appropriate for ease of understanding. Furthermore, some members that are not important for explaining the embodiments are omitted from the drawings.

[0013] Furthermore, separate components that share something in common are distinguished by prefixing their names with "first," "second," etc., and these are omitted when referring to them collectively. Terms including ordinal numbers such as "first" and "second" are used to describe various components, but these terms are used only to distinguish one component from other components and do not limit the components.

[0014] [Embodiment] A condition monitoring device 10 according to an embodiment of the present disclosure will be described below with reference to the drawings. FIG. 1 is a diagram showing an example of a coke oven 1 equipped with a condition monitoring device 10 according to an embodiment. FIG. 2 is a block diagram showing a schematic diagram of the condition monitoring device 10. The condition monitoring device 10 is provided in an extruder 100 of the coke oven 1. In this specification, the installation surface of the extruder 100 is considered to be a horizontal plane, and a viewpoint from a direction perpendicular to the horizontal plane is referred to as a "plan view," and a diagram of a plan view is referred to as a "plan view."

[0015] For ease of explanation, the following description will be based mainly on an XYZ Cartesian coordinate system. The X-axis and Z-axis directions are directions perpendicular to each other along a horizontal plane, and correspond to the left-right direction and the direction perpendicular to the plane of the paper in FIG. 1. The Y-axis direction is a direction perpendicular to the horizontal plane, and corresponds to the up-down direction of the paper in FIG. 1. The positive direction of each of the X-axis, Y-axis, and Z-axis is defined as the direction of the arrow in each figure, and the negative direction is defined as the direction opposite to the arrow. These directional notations do not limit the usage orientation of the condition monitoring device 10, and the condition monitoring device 10 can be used in any orientation.

[0016] (coke oven) As shown in FIG. 1, the coke oven 1 mainly includes an extruder 100 and a coking chamber 70. The coke oven 1 includes a plurality of coking chambers 70 arranged in the Z-axis direction. Hereinafter, in the X-axis direction, the side of the coking chamber 70 on which the extruder 100 is arranged may be referred to as the inlet side (left side on the drawing), and the opposite side may be referred to as the anti-inlet side (right side on the drawing). The extruder 100 is arranged near the inlet side of the coking chamber 70 on a rail 82 extending in the Z-axis direction so as to be movable in the Z-axis direction. The coking chamber 70 has a furnace port 71 provided on the inlet side and a discharge port 73 provided on the anti-inlet side.

[0017] The extruder 100 moves on the rails 82 in the Z-axis direction and extrudes the coke from each carbonization chamber 70. The extruder 100 extrudes the coke 76 produced by carbonization in the carbonization chamber 70 from the discharge port 73 toward the guide car 75 by the extrusion ram 54 inserted from the furnace throat 71.

[0018] In this example, the coke oven 1 includes a plurality of (e.g., three) extruders 100 arranged in the Z-axis direction. Fig. 1 shows one of the three extruders 100. For example, while one extruder 100 of the plurality of extruders 100 is extruding coke into one carbonization chamber 70, another extruder 100 can extrude coke into another carbonization chamber 70.

[0019] The condition monitoring device 10 may be provided in all of the multiple extruders 100. In this embodiment, the condition monitoring device 10 is provided in some of the multiple extruders 100, and is not provided in any extruders other than some of the multiple extruders 100. In this example, the condition monitoring device 10 is provided in one of the three extruders 100, and is not provided in the other two extruders 100.

[0020] The extruder 100 has a drive unit 60, a push-out ram 54, and a carriage unit 80. The carriage unit 80 has wheel units 84 that can run on rails 82, and supports the drive unit 60 and the push-out ram 54. The push-out ram 54 has a ram beam 55 that extends in the X-axis direction, and a ram head 56 that is provided on the side of the ram beam 55 opposite the inlet. The ram beam 55 is provided with rack teeth 57.

[0021] The drive unit 60 includes a motor 61, a pinion gear 64 that meshes with rack teeth 57 of the ram beam 55, and a reducer 62 that reduces the speed of the output rotation of the motor 61 and transmits it to the pinion gear 64. The reducer 62 is an orthogonal reducer whose input rotation axis extends in the X-axis direction and whose output rotation axis extends in the Z-axis direction. When the pinion gear 64 rotates due to the rotation of the motor 61, the rack teeth 57 that mesh with the pinion gear 64 move integrally with the push-out ram 54 in the X-axis direction. For example, when the motor 61 rotates in the forward direction, the push-out ram 54 moves toward the side opposite to the entrance, and when the motor 61 rotates in the reverse direction, the push-out ram 54 moves toward the entrance. In other words, the drive unit 60 applies a pushing load to the push-out ram 54 via the pinion gear 64.

[0022] (Condition monitoring device) In this embodiment, the condition monitoring device 10 is provided in the drive unit 60. The condition monitoring device 10 includes a vibration acquisition unit 12, a load acquisition unit 14, a speed acquisition unit 16, and an information processing unit 30. The information processing unit 30 includes a determination unit 33, which will be described later.

[0023] The vibration acquisition unit 12 acquires vibration information J1 related to vibrations when the pusher ram 54 is pushed into the carbonization chamber 70 of the coke oven 1. There are no limitations on the configuration of the vibration acquisition unit 12, but the vibration acquisition unit 12 in this example includes a vibration sensor 11 that detects vibrations. As the vibration sensor 11, a known vibration sensor such as a piezoelectric acceleration sensor can be used. The vibration data detected by the vibration sensor 11 is an example of the vibration information J1.

[0024] Although there is no limitation on the location where the vibration sensor 11 is installed, the vibration sensor 11 in this example detects vibrations of the drive unit 60 that applies a pushing load to the pusher ram 54. Specifically, the vibration sensor 11 is attached to a cylindrical portion 68 of the casing of the drive unit 60 that supports the output shaft 63 of the reducer 62 to which the pinion gear 64 is fixed. The cylindrical portion 68 is a portion that surrounds the output shaft 63 and supports the output shaft 63 via bearing means (not shown).

[0025] The load acquisition unit 14 acquires load information J2 relating to the pushing load when pushing the pusher ram 54. There are no limitations on the configuration of the load acquisition unit 14, but the load acquisition unit 14 in this example includes a current sensor 13 that detects the drive current of the motor 61. The drive current of the motor 61 is roughly proportional to the pushing load of the pusher ram 54. As an example, the load information J2 is exemplified by the drive current (A) of the motor 61 detected by the current sensor 13.

[0026] The speed acquisition unit 16 acquires speed information J3 related to the moving speed of the pusher ram 54. While the configuration of the speed acquisition unit 16 is not limited, the speed acquisition unit 16 in this example includes a speed sensor 15 that detects the rotational speed of the motor 61. The speed sensor 15 is a proximity sensor arranged to detect the approach of an axial protrusion 153 (e.g., a bolt head) provided on a rotating body 152 (e.g., a coupling) that rotates integrally with the output shaft 612 of the motor 61. A plurality of protrusions 153 may be provided at predetermined intervals in the circumferential direction. The speed sensor 15 outputs a pulse signal when the protrusion 153 approaches and moves away. The interval (period) of the pulse signal output by the speed sensor 15 is approximately inversely proportional to the moving speed of the pusher ram 54. As an example, the speed information J3 is exemplified by the rotation speed (rpm) of the pinion gear 64 converted from the interval of the pulse signal detected by the speed sensor 15.

[0027] (Information Processing Department) The information processing unit 30 will be described with reference to Figure 2. Each block shown in Figure 2 can be realized in hardware by elements or mechanical devices such as a computer CPU (Central Processing Unit), and in software by a computer program, etc., but here, functional blocks realized by the cooperation of these elements are depicted. Therefore, those skilled in the art who have read this specification will understand that these functional blocks can be realized in various ways by combining hardware and software.

[0028] The information processing unit 30 includes an input unit 31, a storage unit 32, a determination unit 33, and a transmission unit 34. The input unit 31 is an input port that receives vibration information J1, load information J2, and speed information J3. Hereinafter, the vibration information J1, load information J2, and speed information J3 will be collectively referred to as "received information." The storage unit 32 chronologically stores the received information received by the input unit 31. The storage unit 32 also stores previously acquired reference vibration information S1, threshold information for determination by the determination unit 33, intermediate information generated inside the information processing unit 30, and the like. The storage unit 32 can store the stored information stored in the storage unit 32 in association with the coking chamber 70 corresponding to that information.

[0029] The determination unit 33 determines the state of the coking chamber 70 based on the vibration information J1. In particular, the determination unit 33 in this example determines the state of the coking chamber 70 based on the vibration information J1, load information J2, and speed information J3. For example, the determination unit 33 can determine the state of each coking chamber 70 using reference vibration information S1 acquired in advance for that coking chamber 70.

[0030] The determination unit 33 evaluates the vibration information J1 by referring to the reference vibration information S1, classifies the vibration information J1 into a plurality of ranks according to the level of difference between the reference vibration information S1 and the vibration information J1, and provides the ranks after classification as the determination result E1. For example, the determination result E1 is ranked first when it is determined that there is a low possibility of jamming, ranked second when it is determined that there is a medium possibility of jamming, and ranked third when it is determined that there is a high possibility of jamming. The determination result E1 is stored in the storage unit 32.

[0031] The transmitter 34 transmits the determination result E1 to the outside. For example, the determination result E1 transmitted by the transmitter 34 may be displayed on the screen of the monitor 36 in the driver's cab. In this example, when the determination result E1 transmitted by the transmitter 34 is the third rank, the notification unit 35 provided near the corresponding coking chamber 70 emits light in a predetermined manner.

[0032] Next, an example of a determination method will be described. FIG. 3 is a diagram showing an example of vibration information J1 acquired for a coke oven 1. This diagram shows the vibration envelope acquired for a coke chamber 70 in the coke oven 1. The horizontal axis of this diagram indicates the elapsed time from the start to the end of the pushing operation of the pusher ram 54, and the vertical axis of this diagram indicates the amplitude of the vibration information J1 in relative values. Here, an example is shown in which clogging occurred during the Nth pushing operation after maintenance of the coke chamber 70. The solid line graph g1 shows the envelope of the vibration information J1 acquired during the first pushing operation after maintenance of the coke chamber 70. The dashed line graph g3 shows the envelope of the vibration information J1 when clogging occurred during the Nth pushing operation after maintenance. The dashed line graph g2 shows the envelope of the vibration information J1 acquired during the pushing operation just before the clogging occurred (the N-1th pushing operation after maintenance).

[0033] As shown in graph g1, in the initial period after maintenance, the vibration information J1 has a gradual increase portion where the amplitude gradually increases from the start of the extrusion operation, a constant amplitude portion where the amplitude remains almost constant from the end of the gradual increase portion, and a gradual decrease portion where the amplitude gradually decreases from the end of the constant amplitude portion. Note that these patterns are merely examples, and various patterns may occur.

[0034] As shown in graph g3, when a jam occurs, the vibration information J1 is characterized by the random appearance of large amplitude portions where the vibration is particularly large and small amplitude portions where the vibration is particularly small. The small amplitude portions appear when the pushing resistance of the coke 76 becomes excessive and the pusher ram 54 stops moving. The large amplitude portions appear when the pushing load is increased while the pusher ram 54 is stopped and the pusher ram 54 moves forward for a short period of time. After the small amplitude portions and large amplitude portions appear alternately, the small amplitude portions remain continuous. At this time, the pusher ram 54 continues to stop, resulting in a jammed state.

[0035] As shown in graph g2, just before jamming, the vibration information J1 has a gradual increase portion, a constant amplitude portion, and a gradual decrease portion, and the overall amplitude is larger than that of graph g1. By identifying the characteristics of this vibration information J1 just before jamming, signs of jamming can be identified early. The vibration information J1 can be quantified as the peak of the envelope, the average amplitude, and the effective amplitude. In this embodiment, the vibration information J1 is quantified by the effective amplitude (root mean square) for a predetermined period from the start of the extrusion operation. The predetermined period may be, for example, from the start of extrusion to the end of extrusion. In the following explanation, vibration information J1 refers to the effective amplitude.

[0036] FIG. 4 shows the relationship between the number of extrusion operations (ordinal numbers) after maintenance and the vibration information J1. The number of extrusions on the horizontal axis is shown as an ordinal number, with the number of times when clogging occurred being the Nth operation. As shown in FIG. 4, the vibration information J1 for the N-1st and N-2nd operations just before clogging occurred is significantly greater than the vibration information J1 for the 1st to 3rd operations, the N-4th operation, and the N-3rd operation. When the same evaluation was performed on many other coking chambers 70, it was found that although there were differences in the absolute values ​​of vibration for each coking chamber 70, the mode of change when relative values ​​were calculated showed the same tendency.

[0037] Based on these findings, in this embodiment, the determination unit 33 determines, for a certain vibration information J1 to be determined, the vibration information J1 in the extrusion operation immediately before the vibration information J1 to be determined as the reference vibration information S1 acquired in advance. As an example, when the vibration information J1 to be determined is 25% or more higher than the reference vibration information S1, the determination unit 33 determines that the possibility of jamming occurring is high, rank 3; when it is 20% to 24% higher, the determination unit 33 determines that the possibility of jamming occurring is medium, rank 2; and otherwise determines that the possibility of jamming occurring is low, rank 1.

[0038] For example, the first threshold TV-1 is set to a value obtained by adding 25% of the reference vibration information S1 to the reference vibration information S1, and when the vibration information J1 is equal to or greater than the first threshold TV-1, it can be determined that there is a high possibility of jamming. Furthermore, the second threshold TV-2 is set to a value obtained by adding 20% ​​of the reference vibration information S1 to the reference vibration information S1, and when the vibration information J1 is less than the first threshold TV-1 but greater than or equal to the second threshold TV-2, it can be determined that there is a medium possibility of jamming. These determination methods and thresholds are merely examples, and various modifications are possible. The first threshold TV-1 and the second threshold TV-2 can be set based on experimental results.

[0039] High accuracy of judgment is desirable. Therefore, in this embodiment, the judgment unit 33 judges the state of the coking chamber 70 based on vibration information J1, load information J2, and speed information J3. According to studies by the inventors, it has been found that before a jam occurs, the load increases and the speed decreases compared to before. For example, the load information J2 at the N-1st and N-2nd times just before a jam occurs is higher than the load information J2 at the N-3rd to N-4th times, and the speed information J3 at the N-1st and N-2nd times just before a jam occurs is lower than the speed information J3 at the N-3rd to N-4th times.

[0040] Based on these findings, in this embodiment, a threshold value TL is set for the load information J2, and a threshold value TS is set for the speed information J3. In this embodiment, when the load information J2 is equal to or greater than the threshold value TL and the speed information J3 is equal to or less than the threshold value TS for a given object to be determined, the determination unit 33 evaluates and determines the vibration information J1 based on the first threshold value TV-1 and the second threshold value TV-2. The threshold values ​​TL and TS can be set based on experimental results. As an example, the threshold value TL can be set to 500 A, and the threshold value TS can be set to 200 rpm.

[0041] The following describes the features of the condition monitoring device 10 configured as above. The coke oven condition monitoring device 10 of this embodiment includes a vibration acquisition unit 12 that acquires vibration information J1 related to vibrations when the pusher ram 54 is pushed into the coking chamber 70 of the coke oven 1, and a determination unit 33 that determines the condition of the coking chamber 70 based on the vibration information J1 acquired by the vibration acquisition unit 12.

[0042] According to this configuration, the state of the coking chamber 70 is determined based on the vibration information J1, so that the influence of individual differences between the coking chambers 70 can be reduced and the accuracy of the determination can be improved.

[0043] In this embodiment, the determination unit 33 determines the state of each coking chamber 70 using reference vibration information S1 previously acquired for each coking chamber 70. In this case, the determination can be made by comparing with reference vibration information S1 previously acquired for each coking chamber 70, thereby reducing the influence of individual differences between the coking chambers 70 and further improving the determination accuracy.

[0044] This embodiment further includes a load acquisition unit 14 that acquires load information J2 related to the pushing load when pushing the pusher ram 54, and a speed acquisition unit 16 that acquires speed information J3 related to the movement speed of the pusher ram 54. In the state monitoring device 10, the determination unit 33 determines the state of the coking chamber 70 based on the vibration information J1, the load information J2 acquired by the load acquisition unit 14, and the speed information J3 acquired by the speed acquisition unit 16. In this case, since the load information J2 and the speed information J3 are used in addition to the vibration information J1, erroneous determinations can be reduced.

[0045] In this embodiment, the vibration acquisition unit 12 includes a vibration sensor 11 that detects vibrations of the drive unit 60 that applies a pushing load to the pusher ram 54. In this case, the vibration sensor 11 can be placed at a position away from the high-temperature coke chamber 70, thereby reducing thermal damage to the vibration sensor 11. Furthermore, since vibrations between the coke 76 and the oven wall of the coke chamber 70 are directly transmitted to the drive unit 60 via the pusher ram 54, the vibrations can be detected efficiently with little transmission loss.

[0046] In this embodiment, a transmitting unit 34 is provided to transmit to the outside the determination result of the determining unit 33. In this case, the operator can easily recognize the determination result, and therefore, can promptly take measures such as maintenance.

[0047] In this embodiment, the extruder 100 includes a pusher ram 54, a drive unit 60 that drives the pusher ram 54, and a condition monitoring device 10 that is provided in the drive unit 60. The condition monitoring device 10 includes a vibration acquisition unit 12 that acquires vibration information J1 related to vibrations when the pusher ram 54 is pushed into the coking chamber 70, and a determination unit 33 that determines the condition of the coking chamber 70 based on the vibration information J1. In this case, maintenance of the condition monitoring device 10 is easier and more cost-effective than when a condition monitoring device 10 is provided in every extruder 100.

[0048] The above describes in detail examples of embodiments of the present invention. The above-described embodiments merely illustrate specific examples of implementing the present invention. The contents of the embodiments do not limit the technical scope of the present invention, and many design changes, such as changes, additions, and deletions of components, are possible within the scope of the inventive concept defined in the claims. In the above-described embodiments, content that allows such design changes is described using notations such as "in the embodiment" or "in the embodiment," but design changes are also permitted in content that does not have such notations.

[0049] The following describes modified examples. In the drawings and descriptions of the modified examples, the same or equivalent components and members as those in the embodiment are denoted by the same reference numerals. Explanations that overlap with the embodiment will be omitted as appropriate, and the description will focus on the configurations that differ from the embodiment.

[0050] (Variation) In the description of the embodiment, an example has been shown in which the vibration information J1 from the extrusion operation immediately before the extrusion operation to be determined is set as the reference vibration information S1, but this is not limiting. The reference vibration information S1 may be set based on the vibration information J1 from any extrusion operation prior to the extrusion operation to be determined, not just the immediately preceding extrusion operation. For example, the minimum vibration information J1 from multiple extrusion operations prior to the extrusion operation to be determined may be set as the reference vibration information S1, or the average value of the vibration information J1 from multiple extrusion operations prior to the extrusion operation to be determined may be set as the reference vibration information S1.

[0051] In the description of the embodiment, an example has been shown in which the vibration information J1 of one push-out operation is the object of determination, but the present invention is not limited to this, and the vibration information J1 of multiple push-out operations may also be the object of determination.

[0052] In the description of the embodiment, an example was shown in which it was determined that there was a high possibility of jamming when the vibration information J1 from one extrusion operation was equal to or greater than a threshold value, but this is not limiting. For example, it may be determined that there was a high possibility of jamming when the vibration information J1 from multiple consecutive extrusion operations (for example, two) exceeded a threshold value.

[0053] The above-described modifications have the same functions and effects as the embodiment.

[0054] Any combination of the components and modifications of the above-described embodiments is also useful as an embodiment of the present invention. A new embodiment resulting from the combination has the combined effects of the combined embodiments and modifications.

[0055] The present invention can also be defined by the features described in the following items. (Item 1) a vibration acquiring unit that acquires vibration information related to vibrations when the pusher ram is pushed into the coke oven chamber; a determination unit that determines a state of the coking chamber based on the vibration information acquired by the vibration acquisition unit; A coke oven condition monitoring device comprising:

[0056] (Item 2) 2. The state monitoring device according to item 1, wherein the determination unit determines the state of the coking chamber using reference vibration information previously acquired about the coking chamber.

[0057] (Item 3) a load acquisition unit that acquires load information related to a pushing load when the pusher ram is pushed; a speed acquisition unit that acquires speed information related to the moving speed of the extrusion ram; Furthermore, 3. The condition monitoring device according to claim 1, wherein the determination unit determines the condition of the coking chamber based on the vibration information, the load information acquired by the load acquisition unit, and the speed information acquired by the speed acquisition unit.

[0058] (Item 4) 4. The condition monitoring device according to any one of items 1 to 3, wherein the vibration acquisition unit includes a vibration sensor that detects vibration of a drive unit that applies a push load to the pusher ram.

[0059] (Item 5) 5. The state monitoring device according to any one of items 1 to 4, further comprising a transmitting unit that transmits the determination result of the determining unit to an external device.

[0060] (Item 6) an extrusion ram; a drive unit that drives the extrusion ram; a state monitoring device provided in the drive unit; Equipped with The condition monitoring device is an extruder having a vibration acquisition unit that acquires vibration information regarding vibrations when the extrusion ram is pushed into the carbonization chamber, and a judgment unit that judges the condition of the carbonization chamber based on the vibration information. [Explanation of symbols]

[0061] 1 coke oven, 10 condition monitoring device, 11 vibration sensor, 12 vibration acquisition unit, 14 load acquisition unit, 16 speed acquisition unit, 33 judgment unit, 34 transmission unit, 54 extrusion ram, 60 drive unit, 70 carbonization chamber, 76 coke, 100 extruder.

Claims

[Claim 1] a vibration acquiring unit that acquires vibration information related to vibrations when the pusher ram is pushed into the coke oven chamber; a determination unit that determines a state of the coking chamber based on the vibration information acquired by the vibration acquisition unit; A coke oven condition monitoring device comprising:

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