Safety protection system for cable guide vehicle of dry quenching elevator

Abstract

The invention discloses a safety protection system for a cable guide vehicle of a coke dry quenching elevator, relates to the technical field of guide vehicle safety protection, solves the technical problems that in the prior art, the hidden danger protection efficiency of the guide vehicle cannot be detected, and risk management and control cannot be carried out in time, and particularly relates to a guide vehicle track detection unit. The guide rail detection module is used for carrying out guide rail detection on a cable guide, collecting rail detection information, substituting the rail detection information into a formula to obtain a detection coefficient of a guide rail, and comparing and deducing whether the guide rail detection is abnormal or not according to a coefficient threshold; the guide vehicle running analysis unit is used for analyzing the running process of the guide vehicle, collecting bearing running information and wheel running information, and deducing whether the running analysis of the cable guide vehicle is abnormal or not through information comparison; and the protection detection unit is used for detecting and analyzing safety protection measures of the cable guide vehicle, acquiring peak-to-time ratio information and braking information, and analyzing and deducing whether protection detection of the cable guide vehicle is abnormal or not according to the information.

Description

Technical Field

[0001] The invention relates to the technical field of guide car safety protection, and in particular to a safety protection system for a cable guide car of a dry coke quenching hoist. Background Art

[0002] During production operation, due to the cracking of equipment and untimely maintenance by inspection personnel, the middle guide wheel and end guide wheel of the 140t / h dry quenching coke elevator cable guide car may fall off the track during operation, causing a serious accident that the cable guide car is broken as a whole.

[0003] Therefore, in the prior art, the cable guide track cannot be detected in real time when the cable guide car is running, and the guide car travel cannot be analyzed for abnormalities, so that the real-time operation stability of the cable guide car cannot be guaranteed. In addition, the hidden danger protection efficiency of the guide car cannot be detected, and risk control cannot be carried out in time.

[0004] In view of the above technical defects, a solution is now proposed. Summary of the invention

[0005] The purpose of the present invention is to solve the above-mentioned problems and to provide a safety protection system for the cable guide car of the dry coke quenching hoist.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A safety protection system for a cable guide car of a dry coke quenching hoist includes a protection platform, and the protection platform is connected to:

[0008] The guide car track detection unit is used to detect the guide car track of the cable guide car, collect the track detection information, and substitute it into the formula to obtain the detection coefficient of the guide car track. According to the coefficient threshold comparison, it is inferred whether the guide car track detection is abnormal. If yes, maintenance is carried out, otherwise, the detection continues;

[0009] The guide vehicle driving analysis unit is used to analyze the guide vehicle driving process, collect bearing operation information and wheel operation information, and judge whether the cable guide vehicle driving analysis is abnormal through information comparison. If yes, the driving control is carried out, otherwise, the monitoring is continued;

[0010] The protection detection unit is used to detect and analyze the safety protection measures of the cable guide car, collect peak time ratio information and braking information, and infer whether the protection detection of the cable guide car is abnormal based on the information analysis. If so, it will be inspected, otherwise continue to detect.

[0011] As a preferred embodiment of the present invention, the track detection information includes the deviation value of the horizontality of the guide car track when the cable guide car is running or not, the maximum curvature of the corresponding track deformation when there is no guide car running during the use stage of the guide car track, and the increase span of the corresponding guide car shaking amplitude when the cable guide car passes through the same part of the guide car track at the same speed during the operation of the guide car.

[0012] As a preferred embodiment of the present invention, if the detection coefficient of the guide vehicle track during the travel of the cable guide vehicle exceeds the track detection coefficient threshold, a guide vehicle track abnormal signal is generated; if the detection coefficient of the guide vehicle track during the travel of the cable guide vehicle does not exceed the track detection coefficient threshold, a guide vehicle track normal signal is generated.

[0013] As a preferred embodiment of the present invention, the bearing operation information and the wheel operation information are respectively the span values ​​corresponding to the continuous increase in decibels of the wheel bearing and wheel operation noise during the travel of the cable guide vehicle and the continuous decrease in the span of the wheel rotation speed, and the floating span of the deviation distance between the wheel and the center point of the track during the travel of the cable guide vehicle.

[0014] As a preferred embodiment of the present invention, if the bearing operation information exceeds the numerical value and the threshold, or the wheel operation information exceeds the floating span threshold, an abnormal driving signal is generated; if the bearing operation information does not exceed the numerical value and the threshold, and the wheel operation information does not exceed the floating span threshold, a normal driving signal is generated.

[0015] As a preferred embodiment of the present invention, the peak-to-time ratio information and the braking information are respectively the ratio of the peak value of the delay time of adjacent driving cycles to the corresponding numerical value of the risk-free operation time of adjacent driving cycles when the cable guide vehicle in a non-driving state is at risk, and the maximum time consumed for braking at the driving speed under the premise that the current braking inertia is safe when the cable guide vehicle in a driving state is at risk.

[0016] As a preferred embodiment of the present invention, if the peak-to-time ratio information exceeds the duration numerical ratio threshold, or the braking information exceeds the maximum time consumption threshold, a protection detection inefficiency signal is generated; if the peak-to-time ratio information does not exceed the duration numerical ratio threshold, and the braking information does not exceed the maximum time consumption threshold, a protection detection efficiency signal is generated.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In the present invention, the cable guide vehicle is inspected for the guide vehicle track to infer whether there is any abnormality in the corresponding guide vehicle track during the actual use of the cable guide vehicle, thereby avoiding quality problems of the guide vehicle track and reducing the availability of the track itself. The guide vehicle track safety quality inspection can effectively improve the passage safety of the cable guide vehicle and ensure that the cable guide vehicle can travel stably according to the set track;

[0019] By analyzing and detecting the guide car's driving process, it can be inferred whether there is any abnormality in the current guide car's driving, so as to monitor and warn of the driving abnormality in time to prevent the driving abnormality from turning into an accident, which would lead to a reduction in the safety performance of the cable guide car. The driving safety warning can effectively reduce the risk of accidents, and the real-time driving status can be monitored. When there is no risk, rectification can be carried out to improve driving efficiency.

[0020] 2. In the present invention, the safety protection measures of the cable guide car are detected and analyzed to infer whether the real-time safety protection measures during the operation of the cable guide car can ensure timely control of the cable guide car when there is a driving risk, so as to avoid the driving risk affecting the safety of the use of the cable guide car. Through the protection detection, the hardware equipment of the real-time protection measures can be detected, and the efficiency analysis of the protection measures can be improved, thereby further improving the stability and safety of the cable guide car. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0022] Figure 1 It is a principle block diagram of the present invention. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0025] See also Figure 1 As shown, a safety protection system for a cable guide car of a dry coke quenching hoist includes a protection platform, the protection platform is communicatively connected with a guide car track detection unit, a guide car travel analysis unit and a protection detection unit, wherein the protection platform is bidirectionally connected with the guide car track detection unit, the guide car travel analysis unit and the protection detection unit;

[0026] The protection platform generates a guide car track detection signal and sends the guide car track detection signal to the guide car track detection unit. After receiving the guide car track detection signal, the guide car track detection unit performs a guide car track detection on the cable guide car to determine whether there is any abnormality in the corresponding guide car track during the actual use of the cable guide car, thereby avoiding quality problems of the guide car track and reducing the availability of the track itself. The guide car track safety quality detection can effectively improve the passage safety of the cable guide car and ensure that the cable guide car can travel stably according to the set trajectory;

[0027] The deviation value of the horizontality of the guide rail with or without the guide rail during the cable guide rail running is obtained, and the maximum curvature of the corresponding track deformation when the guide rail is not running during the use stage of the guide rail is obtained, and the deviation value of the horizontality of the guide rail with or without the guide rail during the cable guide rail running and the maximum curvature of the corresponding track deformation when the guide rail is not running during the use stage of the guide rail are marked as SPP and ZDW respectively;

[0028] The increase span of the sway amplitude of the cable guide vehicle when the cable guide vehicle passes through the same part of the guide vehicle track at the same speed during the travel of the cable guide vehicle is obtained, and the increase span of the sway amplitude of the cable guide vehicle when the cable guide vehicle passes through the same part of the guide vehicle track at the same speed during the travel of the cable guide vehicle is marked as FDZ;

[0029] The above collected information is uniformly marked as track detection information, and substituted into the formula to obtain the detection coefficient of the cable guide track during the travel of the cable guide vehicle, where the formula is: Among them, G is the detection coefficient of the guide rail, fvz1, fvz2 and fvz3 are preset proportional coefficients, e is a natural constant, and β is an error correction factor with a value of 1.34;

[0030] Compare the detection coefficient of the cable guide track during the travel of the cable guide with the track detection coefficient threshold:

[0031] If the detection coefficient of the guide vehicle track during the travel of the cable guide vehicle exceeds the track detection coefficient threshold, it is inferred that the guide vehicle track detection is abnormal during the current travel of the cable guide vehicle, and a guide vehicle track abnormality signal is generated and sent to the protection platform. After the protection platform receives the guide vehicle track abnormality signal, it inspects the current part of the guide vehicle track and limits the set load capacity of the current route section;

[0032] If the detection coefficient of the guide vehicle track during the travel of the cable guide vehicle does not exceed the track detection coefficient threshold, it is inferred that the guide vehicle track detection is normal during the current travel of the cable guide vehicle, and a guide vehicle track normal signal is generated and sent to the protection platform;

[0033] After the protection platform receives the normal track signal, it generates a guide car driving analysis signal and sends the guide car driving analysis signal to the guide car driving analysis unit. After receiving the guide car driving analysis signal, the guide car driving analysis unit analyzes the guide car driving process, and infers whether there is any abnormality in the current guide car driving by analyzing and detecting the guide car driving process, so as to timely monitor and warn the driving abnormality to avoid the driving abnormality from turning into an accident, which will reduce the safety performance of the cable guide car. The driving safety warning can effectively reduce the risk of accidents, and can monitor the real-time driving status. When there is no risk, rectification can be carried out to improve driving efficiency.

[0034] The sum of span values ​​corresponding to the spans of the continuous increase in decibels of the wheel bearing and the wheel operation noise and the continuous decrease in the wheel rotation speed during the driving of the cable guide vehicle is obtained, wherein the sum of span values ​​is the sum of the values ​​of the spans corresponding to the two values, without considering the problem of inconsistent units, and only the impact analysis of value fluctuation is performed, and the sum of span values ​​corresponding to the spans of the continuous increase in decibels of the wheel bearing and the wheel operation noise and the continuous decrease in the wheel rotation speed during the driving of the cable guide vehicle is marked as bearing operation information;

[0035] At the same time, the floating span of the deviation distance between the wheel and the center point of the track during the driving of the cable guide vehicle is obtained, and the floating span of the deviation distance between the wheel and the center point of the track during the driving of the cable guide vehicle is marked as the wheel operation information, and the center point is represented by the alignment of the wheel center and the track center when the wheel drives on the track for the first time, and then the corresponding center is uniformly marked as the center point;

[0036] The span corresponding to the span value and the floating span of the deviation distance between the wheel and the center point of the track during the driving of the cable guide vehicle are compared with the threshold and the floating span threshold respectively:

[0037] If the decibel of the wheel bearing and wheel running noise continues to increase during the driving of the cable guide vehicle, and the span corresponding to the span continues to decrease, and the span exceeds the value and threshold, or the floating span of the deviation distance between the wheel and the track center point during the driving of the cable guide vehicle exceeds the floating span threshold, it is inferred that the driving analysis of the cable guide vehicle is abnormal during the driving process, and a driving abnormality signal is generated and sent to the protection platform. After receiving the driving abnormality signal, the protection platform controls the driving of the cable guide vehicle to ensure the stability of the real-time driving of the cable guide vehicle;

[0038] If the span corresponding to the span of the wheel bearing and wheel running noise decibels continuously increases and the span of the wheel rotation speed continuously decreases during the driving of the cable guide vehicle, and the span does not exceed the span value and threshold, and the floating span of the deviation distance between the wheel and the track center point during the driving of the cable guide vehicle does not exceed the floating span threshold, it is inferred that the driving analysis of the cable guide vehicle is normal during the driving process, and a normal driving signal is generated and sent to the protection platform;

[0039] After receiving the normal driving signal, the protection platform generates a protection detection signal and sends the protection detection signal to the protection detection unit. After receiving the protection detection signal, the protection detection unit detects and analyzes the safety protection measures of the cable guide car to determine whether the real-time safety protection measures during the operation of the cable guide car can ensure that the cable guide car can be controlled in time when there is a driving risk, so as to avoid the driving risk affecting the safety of the cable guide car. Through the protection detection, the hardware equipment for implementing the protection measures can be tested, and the efficiency analysis of the protection measures can be improved, which further improves the stability and safety of the cable guide car.

[0040] The corresponding numerical ratio of the peak value of the delay time of the adjacent driving cycle to the risk-free running time of the adjacent driving cycle when the cable guide vehicle in the non-driving state is at risk is obtained, where the numerical ratio is expressed as the numerical ratio of the two sets of data, without considering the influence of inconsistent units. At the same time, the maximum braking time of the driving speed under the premise of the current braking inertia safety when the cable guide vehicle in the driving state is at risk is obtained, and the corresponding numerical ratio of the peak value of the delay time of the adjacent driving cycle to the risk-free running time of the adjacent driving cycle when the cable guide vehicle in the non-driving state is at risk, and the maximum braking time of the driving speed under the premise of the current braking inertia safety when the cable guide vehicle in the driving state is at risk are marked as peak-to-time ratio information and braking information, respectively, and compared with the duration numerical ratio threshold and the maximum time threshold, respectively:

[0041] If the ratio of the peak value of the delay duration of the adjacent driving cycles to the corresponding value of the risk-free operation duration of the adjacent driving cycles when the cable guide vehicle in a non-driving state is at risk exceeds the time value ratio threshold, or the maximum braking time of the driving speed under the premise of the current braking inertia safety exceeds the maximum time threshold when the cable guide vehicle in a driving state is at risk, it is inferred that the protection detection of the cable guide vehicle is abnormal, and a protection detection inefficiency signal is generated and sent to the protection platform. After receiving the protection detection inefficiency signal, the protection platform performs hardware detection on the protection measures of the cable guide vehicle and performs feasibility assessment on the execution of the measures after the hardware detection is qualified, thereby improving the protection efficiency of the protection measures;

[0042] If the ratio of the peak value of the delay duration of adjacent driving cycles to the corresponding value of the risk-free operation duration of adjacent driving cycles when the cable guide vehicle in a non-driving state is at risk does not exceed the duration value ratio threshold, and the maximum braking time at the driving speed under the premise of the current braking inertia safety when the cable guide vehicle in a driving state is at risk does not exceed the maximum time threshold, it is inferred that the protection detection of the cable guide vehicle is normal, and a protection detection high-efficiency signal is generated and sent to the protection platform.

[0043] The above formulas are obtained by collecting a large amount of data and performing software simulation, and a formula close to the actual value is selected. The coefficients in the formula are set by technicians in this field according to actual conditions;

[0044] When the present invention is in use, the guide car track detection unit is used to perform guide car track detection on the cable guide car, collect track detection information, and substitute it into the formula to obtain the detection coefficient of the guide car track, and infer whether the guide car track detection is abnormal based on the coefficient threshold comparison. If it is, maintenance is carried out, otherwise the detection is continued; the guide car travel analysis unit is used to analyze the guide car travel process, collect bearing operation information and wheel operation information, and infer whether the cable guide car travel analysis is abnormal through information comparison. If it is, travel regulation is carried out, otherwise monitoring is continued; the protection detection unit is used to detect and analyze the safety protection measures of the cable guide car, collect peak time ratio information and braking information, and infer whether the protection detection of the cable guide car is abnormal based on the information analysis. If it is, inspection and control are carried out, otherwise the detection is continued.

[0045] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A safety protection system for a cable guide car of a dry coke quenching hoist, characterized in that: Including protection platform, the protection platform communication connections are: The guide car track detection unit is used to detect the guide car track of the cable guide car, collect the track detection information, and substitute it into the formula to obtain the detection coefficient of the guide car track. According to the coefficient threshold comparison, it is inferred whether the guide car track detection is abnormal. If yes, maintenance is carried out, otherwise, the detection continues; The guide vehicle driving analysis unit is used to analyze the guide vehicle driving process, collect bearing operation information and wheel operation information, and judge whether the cable guide vehicle driving analysis is abnormal through information comparison. If yes, the driving control is carried out, otherwise, the monitoring is continued; The protection detection unit is used to detect and analyze the safety protection measures of the cable guide car, collect peak time ratio information and braking information, and infer whether the protection detection of the cable guide car is abnormal based on the information analysis. If so, it will be inspected, otherwise continue to detect.

2. A safety protection system for cable guide car of dry coke quenching hoist according to claim 1, characterized in that: The track detection information includes the deviation value of the horizontality of the guide track when the cable guide track is running or not, the maximum curvature of the corresponding track deformation when there is no guide track running during the use period of the guide track, and the increase span of the corresponding guide track shaking amplitude when the cable guide track passes through the same part of the guide track at the same speed during the operation of the cable guide track.

3. A safety protection system for cable guide car of dry coke quenching hoist according to claim 2, characterized in that: If the detection coefficient of the guide vehicle track during the travel of the cable guide vehicle exceeds the track detection coefficient threshold, a guide vehicle track abnormal signal is generated; if the detection coefficient of the guide vehicle track during the travel of the cable guide vehicle does not exceed the track detection coefficient threshold, a guide vehicle track normal signal is generated.

4. A safety protection system for a cable guide car of a dry coke quenching hoist according to claim 1, characterized in that: The bearing operation information and wheel operation information are respectively the span corresponding to the continuously increasing span of the wheel bearing and wheel operation noise decibels and the continuously decreasing span of the wheel rotation speed during the driving of the cable guide car, and the floating span of the deviation distance between the wheel and the center point of the track during the driving of the cable guide car.

5. A safety protection system for a cable guide car of a dry coke quenching hoist according to claim 4, characterized in that: If the bearing operation information exceeds the value and threshold, or the wheel operation information exceeds the floating span threshold, an abnormal driving signal is generated; if the bearing operation information does not exceed the value and threshold, and the wheel operation information does not exceed the floating span threshold, a normal driving signal is generated.

6. A safety protection system for a cable guide car of a dry coke quenching hoist according to claim 1, characterized in that: The peak-to-time ratio information and braking information are respectively the ratio of the peak value of the delay time of adjacent driving cycles to the corresponding numerical value of the risk-free operation time of adjacent driving cycles when the cable guide car in the non-driving state has a risk, and the maximum braking time at the driving speed under the premise of the current braking inertia safety when the cable guide car in the driving state has a risk.

7. A safety protection system for a cable guide car of a dry coke quenching hoist according to claim 6, characterized in that: If the peak-to-time ratio information exceeds the duration value ratio threshold, or the braking information exceeds the maximum time consumption threshold, a protection detection inefficiency signal is generated; if the peak-to-time ratio information does not exceed the duration value ratio threshold, and the braking information does not exceed the maximum time consumption threshold, a protection detection efficiency signal is generated.

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