CN211546411U - Automatic coke oven mechanical alignment system - Google Patents

Automatic coke oven mechanical alignment system Download PDF

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Publication number
CN211546411U
CN211546411U CN201922445311.XU CN201922445311U CN211546411U CN 211546411 U CN211546411 U CN 211546411U CN 201922445311 U CN201922445311 U CN 201922445311U CN 211546411 U CN211546411 U CN 211546411U
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CN
China
Prior art keywords
frequency
frequency radar
radar
plc
encoder
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Withdrawn - After Issue
Application number
CN201922445311.XU
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Chinese (zh)
Inventor
冷学有
董德才
张进
许炜
吴志慧
李浩然
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DALIAN HUARUI HEAVY INDUSTRY COKE OVEN VEHICLE EQUIPMENT CO LTD
Dalian Huarui Heavy Industry Group Co Ltd
Original Assignee
DALIAN HUARUI HEAVY INDUSTRY COKE OVEN VEHICLE EQUIPMENT CO LTD
Dalian Huarui Heavy Industry Group Co Ltd
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Application filed by DALIAN HUARUI HEAVY INDUSTRY COKE OVEN VEHICLE EQUIPMENT CO LTD, Dalian Huarui Heavy Industry Group Co Ltd filed Critical DALIAN HUARUI HEAVY INDUSTRY COKE OVEN VEHICLE EQUIPMENT CO LTD
Priority to CN201922445311.XU priority Critical patent/CN211546411U/en
Application granted granted Critical
Publication of CN211546411U publication Critical patent/CN211546411U/en
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Abstract

The utility model provides a coke oven machinery automatic alignment system, include: the system comprises a PLC (programmable logic controller), a switch, a high-frequency radar, a human-computer interface, a frequency converter, an encoder and a limit switch; the PLC is connected to the frequency converter and the encoder, and reads information of the frequency converter and the encoder through PN bus communication; and the PLC is respectively connected to the human-computer interface and the high-frequency radar through Ethernet communication. The utility model discloses a high frequency radar technique installation and debugging is convenient, and follow-up non-maintaining compares traditional technology, on the basis of guaranteeing the counterpoint precision, and cost utilization is higher.

Description

Automatic coke oven mechanical alignment system
Technical Field
The utility model relates to an industry automation technology field particularly, especially relates to a coke oven machinery automatic alignment system.
Background
The coke oven mechanical equipment is special movable mechanical equipment serving the coke oven production process of enterprises of metallurgy, chemical engineering, coal gas production and the like, and is required to be frequently moved among carbonization chambers to complete the process operations of coke pushing, coal charging, coke guiding, coke receiving and the like. The alignment precision of each operation is high, and is usually +/-5 mm.
At present, large-scale coke oven equipment of 7.63 meters, 7 meters and the like in China mostly adopts a method of 'a coke oven mechanical oven number identification and automatic alignment system', namely, an automatic alignment technology in the form of a reading head and a coding plate, and the alignment technology is mature and reliable, but has the following defects: 1, the installation and debugging are troublesome, the coke oven consists of porous carbonization chambers, each carbonization chamber needs to be provided with a code disc with a corresponding number, the workload is large, the position of a coke blocking machine is suspended, and the installation and the adjustment are unsafe and inconvenient; 2, the later maintenance amount is large, and the width of the carbonization chamber can change along with time and thermally expand, so that the position of a code disc needs to be adjusted frequently to adapt to position change; 3 because the coke oven has bad environment and large smoke dust and dust, the lens of the reading head needs to be cleaned regularly, and the decoding board is also damaged frequently, which brings great difficulty to the maintenance work.
Some small and medium-sized coke oven enterprises generally adopt manual alignment due to high cost and weak maintenance force, so that the manual alignment efficiency is low, the labor amount is large, the time is wasted, and accidents are easy to happen. Under the background, in order to realize the safety interlocking operation among coke oven equipment and reduce the maintenance workload, an automatic alignment control system based on a high-frequency radar technology is developed and integrated in a control scheme of a coke oven vehicle traveling mechanism by taking a Turkey 5-meter coke oven engineering project as a support, the traveling positioning error meeting the process requirement is superior to the control precision of 5mm, and meanwhile, the good actual control effect of quickly, stably and effectively improving the production efficiency is achieved.
Disclosure of Invention
In view of the above-mentioned technical problems, an automatic alignment system and an alignment method for coke oven machinery are provided. The utility model discloses mainly utilize a coke oven machinery automatic alignment system, a serial communication port, include: PLC programmable controller, switch, high frequency radar, human-computer interface, converter, encoder and limit switch.
Further, the PLC is connected to the frequency converter and the encoder, and reads information of the frequency converter and the encoder through PN bus communication; and the PLC is respectively connected to the human-computer interface and the high-frequency radar through Ethernet communication.
Still further, the high frequency radar includes: the system comprises a high-frequency radar I arranged on the ground, a high-frequency radar II arranged on a coke pusher, a high-frequency radar III arranged on the ground, a high-frequency radar IV arranged on a coal charging car, a high-frequency radar V arranged on the ground, a high-frequency radar VI arranged on a coke guide, a high-frequency radar VII arranged on the ground and a high-frequency radar VIII arranged on an electric locomotive; the high-frequency radars are grouped in pairs, and the distance value detected by the radars is read in real time through a PLC (programmable logic controller) arranged on the vehicle through an Ethernet line; the limit switch is connected to an input module of the PLC through a hard wire.
Compared with the prior art, the utility model has the advantages of it is following:
the utility model discloses a high frequency radar technique installation and debugging is convenient, and follow-up non-maintaining compares traditional technology, on the basis of guaranteeing the counterpoint precision, and cost utilization is higher.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic structural view of the automatic alignment system of the present invention.
FIG. 2 is a schematic plan view of a coke oven machine based on a high-frequency radar alignment system.
Fig. 3 is the speed setting curve of the frequency converter of the present invention.
FIG. 4 is a mechanical schematic diagram of the coke oven with the redundant radar alignment system of the present invention.
In the figure: 1 is a PLC programmable controller; 2 is a switch; 3 is a high-frequency radar; 4 is a human-machine interface; 5 is a frequency converter; 6 is an encoder; 7 is a limit switch; 8 is a coke pusher; 9 is a high-frequency radar I; 10 is a high-frequency radar II; 11 is a carbonization chamber; 12 is a coal charging car; 13 is a high-frequency radar III; 14 is a high-frequency radar IV; 15 is a coke guide; 16 is a high-frequency radar V; 17 is a high-frequency radar VI; 18 is an electric locomotive; 19 is a high-frequency radar VII; 20 is a high-frequency radar VIII; 21 is a coke oven machine; 22 is a high frequency radar IX; 23 is a high frequency radar X; 24 is a high-frequency radar XI; and 25 is a high-frequency radar XII.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
As shown in fig. 1-4, the utility model provides a coke oven mechanical automatic alignment system, which comprises: PLC programmable controller 1, switch 2, high frequency radar 3, human-computer interface 4, converter 5, encoder 6 and limit switch 7.
In the present application, as a preferred embodiment, the PLC programmable controller 1 is connected to the frequency converter 5 and the encoder 6, and reads information of the frequency converter and the encoder through PN bus communication; the PLC 1 is respectively connected to the human-computer interface 4 and the high-frequency radar 3 through Ethernet communication.
As a preferred embodiment, the high frequency radar 3 includes: the system comprises a high-frequency radar I9 arranged on the ground, a high-frequency radar II10 arranged on a coke pusher 8, a high-frequency radar III13 arranged on the ground, a high-frequency radar IV 14 arranged on a coal charging car 12, a high-frequency radar V16 arranged on the ground, a high-frequency radar VI 17 arranged on a coke guide 15, a high-frequency radar VII 19 arranged on the ground and a high-frequency radar VIII 20 arranged on an electric locomotive 18; the high-frequency radars are grouped in pairs, and the distance value detected by the radars is read in real time through a PLC (programmable logic controller) 1 arranged on a vehicle through an Ethernet line; the limit switch 7 is connected to an input module of the PLC 1 through a hard wire. In the embodiment, the high-frequency radar I9 on the ground, the high-frequency radar II10 arranged on the coke pusher 8 are in a group, the high-frequency radar III13 arranged on the ground, the high-frequency radar IV 14 arranged on the coal charging car 12 are in a group, the high-frequency radar V16 arranged on the ground and the high-frequency radar VI 17 arranged on the coke guide 15 are in a group, the high-frequency radar VII 19 arranged on the ground and the high-frequency radar VIII 20 arranged on the electric locomotive 18 are in a group, and it can be understood that in the application, two high-frequency radars are in a group and pass through an Ethernet cable, and the distance value detected by the radars is read in real time through the PLC 1 arranged on the vehicle, so that the distance detection is realized.
In addition, the system adopts automatic traveling, so that high requirements are placed on the stability and the safety of the system, the communication and line faults are considered to possibly cause radar value faults, linkage protection is added, the encoder 6 is used for verifying the radar value, when the deviation between the radar value and the encoder value exceeds a deviation range, the system is considered to have problems, and the equipment is automatically stopped. In addition, a limit speed reduction and parking limit switch 7 is added, when the equipment senses speed reduction and limit, the equipment decelerates, and the equipment parks after sensing parking limit.
The coke oven mechanical automatic alignment method of the coke oven mechanical automatic alignment system applying the utility model comprises the following steps:
step S1: automatically aligning the coke oven machinery through a high-frequency radar;
step S2: setting a target furnace number position value; and setting a distance value corresponding to each furnace number in the PLC according to the number of the carbonization chambers. The target furnace number set here is preset and can be set according to actual requirements.
Step S3: inputting a target furnace number; and operating through the human-computer interface 4, inputting a target furnace number on a screen, and automatically walking.
S4: judging the running direction; judging the moving direction of the vehicle by comparing the distance value of the target furnace number with the radar real-time value; when the distance value of the target furnace number is larger than the radar real-time value, the vehicle moves towards the positive direction; when the distance value of the target furnace number is smaller than the radar real-time value, the vehicle moves in the opposite direction; and when the distance value of the target furnace number is equal to the radar real-time value, executing the step S6, and braking to stop.
S5: setting the running speed of a frequency converter; the numerical value of the high-frequency radar 3 is differed from the preset position value of the target furnace number through the PLC 1, the residual distance between the numerical value and the target furnace number is calculated, and different speed control instructions are transmitted to the frequency converter 5 through PN communication according to the size of the residual distance.
When the distance between the frequency converter 5 and the target position is greater than or equal to a preset deceleration distance Dmax, the frequency converter 5 operates at a high speed, when the distance between the frequency converter 5 and the target position is less than the preset deceleration distance Dmax, the frequency converter 5 decelerates and linearly decreases according to the distance between the frequency converter 5 and the target position, and when the distance between the frequency converter 5 and the target position is less than a set alignment distance Dmin, the frequency converter 5 operates at a low speed;
s6: and when the radar value is equal to the target position value and the residual distance is 0mm, braking and stopping.
Example 1
The utility model discloses, when using a set of radar to carry out the distance detection, measuring distance can reach 300m, and equipment counterpoint precision can reach 5mm, satisfies coke oven mechanical equipment technological requirement. When there is a higher demand, or the detection distance exceeds 300m, two sets of radars, i.e. redundant systems, can be used. The detection distance can reach 500 m. High frequency radar IX 22 and high frequency radar X23 are a set of, and high frequency radar XI 24 and high frequency radar XII 25 are a set of, and through the operation comparison of two sets of radar detection numerical values, equipment counterpoint accuracy can improve one time, reaches 3 mm.
The key to the realization of the automatic alignment system lies in the positioning precision of the high-frequency radar. The traditional radar positioning series is 50cm or even more than meter level, and the high-frequency radar positioning accuracy is millimeter level, so that the requirement of the coke oven mechanical automatic alignment accuracy of +/-5 mm can be completely met. High frequency radar frequency range: 57-64 GHz, is applied to the industrial field, and has high stability. Working environment of the high-frequency radar: the temperature is-40-75 ℃, the stability and the precision of the system are not influenced by the conditions of dust, severe weather, vibration and the like, and the system can be completely suitable for the severe environment of the coke oven equipment on site. And subsequent maintenance-free operation is adopted, so that the production efficiency of the coke oven mechanical equipment is greatly improved, the lens cleaning operation and the mechanical correction operation caused by the width change of the carbonization chamber are avoided, and the cost is saved.
The application of the technology improves the overall competitiveness of products by relying on Turkey coke oven items of 5 meters, and has wide market prospect because of low cost and no maintenance, opens the automatic alignment market of small and medium-sized coke ovens and replaces part of the existing automatic alignment equipment of large coke ovens.
The above embodiment numbers of the present invention are only for description, and do not represent the advantages and disadvantages of the embodiments.
In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (1)

1. An automatic alignment system for coke oven machinery, which is characterized by comprising: the system comprises a PLC (programmable logic controller) (1), a switch (2), a high-frequency radar (3), a human-computer interface (4), a frequency converter (5), an encoder (6) and a limit switch (7);
the PLC (1) is connected to the frequency converter (5) and the encoder (6), and reads information of the frequency converter and the encoder through PN bus communication; the PLC (1) is respectively connected to the human-computer interface (4) and the high-frequency radar (3) through Ethernet communication;
the high-frequency radar (3) comprises: a high-frequency radar I (9) arranged on the ground, a high-frequency radar II (10) arranged on a coke pusher (8), a high-frequency radar III (13) arranged on the ground, a high-frequency radar IV (14) arranged on a coal charging car (12), a high-frequency radar V (16) arranged on the ground, a high-frequency radar VI (17) arranged on a coke guide (15), a high-frequency radar VII (19) arranged on the ground and a high-frequency radar VIII (20) arranged on an electric locomotive (18);
the high-frequency radars are grouped in pairs, and the distance value detected by the radars is read in real time through a PLC (programmable logic controller) arranged on a vehicle through Ethernet lines; the limit switch (7) is connected to an input module of the PLC (1) through a hard wire.
CN201922445311.XU 2019-12-30 2019-12-30 Automatic coke oven mechanical alignment system Withdrawn - After Issue CN211546411U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922445311.XU CN211546411U (en) 2019-12-30 2019-12-30 Automatic coke oven mechanical alignment system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922445311.XU CN211546411U (en) 2019-12-30 2019-12-30 Automatic coke oven mechanical alignment system

Publications (1)

Publication Number Publication Date
CN211546411U true CN211546411U (en) 2020-09-22

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CN201922445311.XU Withdrawn - After Issue CN211546411U (en) 2019-12-30 2019-12-30 Automatic coke oven mechanical alignment system

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110938444A (en) * 2019-12-30 2020-03-31 大连华锐重工焦炉车辆设备有限公司 Automatic coke oven mechanical alignment system and alignment method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110938444A (en) * 2019-12-30 2020-03-31 大连华锐重工焦炉车辆设备有限公司 Automatic coke oven mechanical alignment system and alignment method
CN110938444B (en) * 2019-12-30 2023-08-22 大连华锐重工焦炉车辆设备有限公司 Automatic mechanical alignment system and method for coke oven

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