CN202929421U - Unmanned control equipment for coke dry quenching lifting machine - Google Patents
Unmanned control equipment for coke dry quenching lifting machine Download PDFInfo
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- CN202929421U CN202929421U CN 201220591529 CN201220591529U CN202929421U CN 202929421 U CN202929421 U CN 202929421U CN 201220591529 CN201220591529 CN 201220591529 CN 201220591529 U CN201220591529 U CN 201220591529U CN 202929421 U CN202929421 U CN 202929421U
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Abstract
Unmanned control equipment for a coke dry quenching lifting machine, comprising a lifting frequency converter, a travelling frequency converter, a machine PLC, an operating console PLC, an HMI, a lifting position encoder, a travelling position encoder, a central control room communication module and an automation control module which are connected through a data communication bus. The automation control module is an independent module comprising a bus interface circuit, a bus decoding circuit, a power supply circuit, a memory circuit, a watchdog circuit and a CPU circuit. The lifting motor is connected with the lifting frequency converter; the lifting speed encoder is connected with the lifting frequency converter; the lifting motor is coaxially connected with the lifting speed encoder; the travelling motor is connected with the travelling frequency converter; the travelling speed encoder is connected with the travelling frequency converter; and the travelling motor is coaxially connected with the travelling speed encoder. According to the unmanned control equipment for a coke dry quenching lifting machine, the personnel for controlling a crane is decreased, personnel cost and a personal casualty accident rate are reduced, and manufacture cost of coke dry quenching lifting machine related equipment and spare part purchase cost are reduced.
Description
Technical field
The utility model relates to the unmanned opertaing device of coke dry quenching hoister.
Background technology
Coke dry quenching hoister is the production infrastructure device of iron and steel enterprise, be positioned at steel products and produce the front end of chain, belong to important production equipment, this equipment and technology requirement is high, reliability requirement is higher, and is full-automatic unmanned implement, at home the basic dependence on import of this equipment, and most equipment have been on active service decades even more than ten years, substantially be in failure rate high, spare part shortage, the state that maintenance cost is high.In the situation that steel industry is general weak at present, this state makes the matter worse beyond doubt.
In several large steel mills, the coke dry quenching hoister electric-control system that uses at present is all foreign technology at home, and because domestic technique was backward at that time, correlative technology field is substantially blank, so can only adopt importing technology and equipment.May be advanced in the world through originally technology, but along with the progress of technology, these technology obviously fall behind, and the electrical equipment that adopted originally substantially stopping production, be that maintenance or spare parts purchasing are all very difficult now.Present domestic relevant industries manufacturer has accumulated experience for many years, it is ripe that technology has been tending towards, vigorously advocate under the form of proprietary technology, energy-saving and emission-reduction in country simultaneously, to have the unmanned opertaing device of coke dry quenching hoister of independent intellectual property right extremely urgent so develop a cover.
The utility model content
For addressing the above problem, the utility model provides a kind of solution effectively, realizes the unmanned opertaing device of coke dry quenching hoister, the unmanned opertaing device of coke dry quenching hoister is domesticized fully, and the complete independent development of core technology.
The technical scheme that its technical matters that solves the utility model adopts is: the unmanned opertaing device of this coke dry quenching hoister comprises that on the frequency converter that hoists, traveling frequency converter, machine, PLC, operator's console PLC, HMI, the position coder that hoists, traveling position coder, Central Control Room communication module and automation control module are connected by the data communication bus; Automation control module is made of bus interface circuit, bus encoding/decoding circuit, power circuit, memory circuitry, watchdog circuit, cpu circuit; Bus interface circuit, bus encoding/decoding circuit, power circuit, memory circuitry, watchdog circuit all are connected to cpu circuit, consist of together a standalone module; Lifting electric motor is connected with the frequency converter that hoists; The lifting velocity scrambler frequency converter that also hoists is connected; Lifting electric motor is connected with the lifting velocity scrambler is coaxial; The traveling motor is connected with the traveling frequency converter; The traveling speed scrambler is connected with the traveling frequency converter; The traveling motor is connected with the traveling speed scrambler is coaxial.
Through textual criticism in many ways, each large steel mill is understood at home, and the groundwork flow process that gathers coke dry quenching hoister is as follows:
1. electric locomotive moves the backward Central Control Room that puts in place and sends the signal that puts in place.
2. Central Control Room draws burnt tank to the hoister below according to this signal controlling tractor.
3. then Central Control Room sends to hoister and gets the tank signal
4. hoister is controlled lifting mechanism and is hoisted after obtaining getting the tank signal, due to the singularity of the physical construction of the fixture that hoists, and can the burnt tank of automatic clamping in the process of hoisting
5. hoister stops after rising and being raised to the rising limit
Then hoister to Central Control Room generation request signal
7. Central Control Room sends target coke oven position signalling and traveling instruction after receiving the signal of hoister.
8. hoister is controlled running mechanism and is advanced to target coke oven position after the target position signal that receives Central Control Room and traveling signal.
9. after the arrival target location, hoister descends.
10. hoister drops to above the target coke oven.
11. then due to the singularity of the physical construction of burnt tank, or because coke tank bottom door is beaten in the deadweight of burnt tank, coke falls into coke oven.
12. hoister automatic-ascending then.
13. hoister stops after arriving the rising limit.
Turn back to the original position 14. then control simultaneously running mechanism.
15. then the hoister control lifting mechanism descends.
16. after dropping to the original position that hoists, enter waiting status, and send the flow process end signal to Central Control Room.
According to above-mentioned technological process, and in conjunction with the control technique of crane, develop the utility model.Because the hoister body still belongs to the crane category, so the utility model is to increase automation control module to realize in the control system of crane.Although in above-mentioned technique, electric locomotive and tractor are the links in flow process, but there is no direct correlation with hoister, these two equipment are controlled by Central Control Room, so the utility model does not comprise this two parts equipment yet.
The elevating function of to the effect that realizing hoister by the Frequency Converter Control lifting electric motor running that hoists of the present utility model, simultaneously the same shaft encoder by lifting electric motor with the speed feedback of lifting electric motor to the frequency converter that hoists, consist of speed closed loop, the speed that guarantees lifting mechanism is more reliable and stable, and can send full moment under arbitrary speed, guarantee that load the phenomenon that glides can not occur.Realize in addition the horizontally moving functions of hoister by traveling Frequency Converter Control traveling motor, the general speed closed loop control that also realizes running mechanism by the same shaft encoder of traveling motor.The frequency converter of lifting mechanism and running mechanism is controlled by PLC on machine.Scrambler is detected for detection of the real time position of each mechanism, in order to realize automatic positioning function in equal installation site on lifting mechanism and running mechanism simultaneously.The signal of Central Control Room is connected to hoister by communication module, and hoister just can send signal and receive the signal of Central Control Room to Central Control Room like this.The operational order of pilothouse sends to PLC on machine after receiving by pilothouse PLC.And robotization realizes by the robotization module.On robotization module and frequency converter, position coder machine, PLC, pilothouse PLC, HMI and Central Control Room communication module all are connected on a data communication bus, robotization module so just can the overall situation be controlled all devices of hoister, so can be according to the instruction of Central Control Room, position of hoister etc. information is controlled hoister according to set technological process operation.
The robotization module is core component of the present utility model, will be responsible for calculating and the flow process ground control of whole hoister automatic operating data.The robotization module mainly is made of bus processing unit, CPU element, memory cell three parts, and the bus processing unit comprises again bus interface circuit and bus data coding-decoding circuit, is responsible for the exchange of CPU and bus data.Memory cell is responsible for to the storage of the ephemeral data of CPU with to the storage of technological process data.CPU element is the core of robotization module, is responsible for all data ground calculating and processes, and also is responsible for simultaneously the realization of technological process, coordinates the bus unit of periphery and the work of memory cell.
The beneficial effects of the utility model are the production domesticization that realized the unmanned control technology of coke dry quenching hoister, fill up the technological gap in domestic corresponding field, reduce crane and controlled personnel, reduce the accident rate of personnel cost and personal injury, improved manufacturing cost and spare parts purchasing cost that production efficiency also reduces the coke dry quenching hoister relevant device simultaneously.
Description of drawings
Fig. 1 is system architecture schematic diagram of the present utility model.
Fig. 2 is the structural drawing of the utility model robotization module.
Fig. 3 is ProfiBus-DP bus interface circuit figure of the present utility model.
Fig. 4 is the circuit diagram of ProfiBus-DP bus encoding/decoding of the present utility model.
Fig. 5 is cpu circuit figure of the present utility model.
Fig. 6 is memory circuitry figure of the present utility model.
Fig. 7 is watchdog circuit figure of the present utility model.
Embodiment
Be described in detail specific embodiment of the utility model below in conjunction with technical scheme and accompanying drawing.
Embodiment:
1. system consists of
Complete machine electrical control system structure figure as shown in Figure 1, the utility model main body remains a crane, only lacked a running mechanism than common crane, just technology content is very high aspect robotization, so shown in Figure 1 sketch that relates to the utility model core, actual design still need to design according to the crane conventional criteria, just will be referred to automatic part and get final product according to the design of Fig. 1 sketch, so and rubber tyre gantry crane design has had relevant criterion the utility model no longer to relate to these contents.
As shown in Figure 1, the utility model mainly is divided into three loops, and the one, major loop, the 2nd, control electric power loop, the 3rd, order circuit.Major loop is made of circuit breaker Q 0, main contactor K0, the circuit breaker Q that hoists 10, the frequency converter U1 that hoists, lifting electric motor M01, traveling circuit breaker Q 11, traveling frequency converter U2, traveling motor M02.Realize the two dimension operation of hoister.Mainly on power circuit breaker Q1, control transformer T11, control automatic power switch F31,24V power supply P1, machine, PLC power switch F32, operator's console PLC power switch F33 consist of by controlling to control electric power loop.And order circuit is core of the present utility model, and the data transmission of the realization of robotization and robotization all will realize by order circuit.Order circuit is mainly by PLC, operator's console PLC, HMI, automation control module on the frequency converter U1 that hoists, traveling frequency converter U2, machine, hoisting, position coder B03, traveling position coder B04 consist of, Central Control Room communication module U7 consists of, wherein due to PLC on machine and the common wide apart of operator's console PLC, connect by the optical-fibre communications loop so increased optical-electric module U4 and U5 PLC and operator's console PLC on machine in order circuit, avoid because long causing of order circuit disturbed and signal attenuation.
core component of the present utility model concentrates on order circuit, and the realization of automation process is completed by the robotization module, adopt the main advantage of this scheme to be to realize the modular design of hoister robotization, because the hoister main body remains the technological standards design that the crane category still needs erecting crane, so after removing robotization module and Central Control Room communication module, remaining parts still consist of a complete crane work system, so the parts independent design with this hoister residue crane category in the utility model still consists of a complete crane system, then robotization module and Central Control Room communication module are fused to the robotization that realizes hoister in its order circuit, like this in the situation that conventional hoist is not carried out the Automation Design that large-scale design change is realized hoister, do not need again crane to be designed on a large scale, thereby saved in a large number the design effort amount, design difficulty and design cost have also been reduced simultaneously, improved whole reliability.
And automation control module is owing to only needing to pay close attention to technological process and the data processing work of robotization; and the realization of the then control and protection work of each mechanism of specific implementation hoister is not needed to be concerned about; because this part belongs to the conventional hoist category, proven technique has been arranged, gone to have realized by PLC on machine.
Automation control module is core component of the present utility model, is responsible for the realization of automation process, and its structural drawing is seen Fig. 2.Automation control module mainly is made of power circuit, bus interface circuit, bus encoding/decoding circuit, memory circuitry, watchdog circuit, cpu circuit.Also just simple owing to having adopted bus structure to belong to the design of robotization module, do not needed complicated IO interface.Wherein power circuit provides power supply for whole module each several part, bus interface circuit is made of photoelectricity isolation and RS485 conversion two parts, mainly be responsible for the utility model is advanced to be linked in the bus system of hoister, the data in the hoister bus are carried out exchanges data by this interface and the utility model.Photoelectricity isolation is used for that the bus of hoister and bus of the present utility model are carried out electrical isolation and prevents not mating of electrical Interference and level, also completes the conversion of the RS232 circuit of RS485 and back simultaneously.The data bus of this example adopts the ProfiBus-DP bus, the ProfiBus-DP bus is in fact also the RS485 protocol bus, so the RS485 circuit is exactly to be responsible for that the signal after the photoelectricity isolation is carried out the RS485 conversion to be linked on the ProfiBus-DP bus of hoister.
The bus encoding/decoding circuit comprises SPC3 circuit and RS232 circuit, and the RS232 circuit is responsible for the RS232 signal of photoelectric isolating circuit output is changed and is delivered to the SPC3 circuit.The SPC3 circuit is responsible for being delivered to cpu circuit after decoding data with the RS232 circuit, also the data of cpu circuit output is encoded, and makes it meet the ProfiBus-DP bus request.Memory circuitry is responsible for storing ephemeral data and the technological process data of CPU, and watchdog circuit is responsible for the working condition of CPU is carried out Real Time Monitoring, guarantees that CPU is in good working order always.
2. automation control module describes in detail
Fig. 3 is ProfiBus-DP bus interface circuit figure of the present utility model, and Fig. 4 is the circuit diagram of ProfiBus-DP bus encoding/decoding of the present utility model.
Mainly by RS485 chip 65ALS1176, high speed photo coupling U23, U24, U25 complete the ProfiBus-DP bus interface, and the model of high speed photo coupling is 6N317.High speed photo coupling is responsible for that namely the RS485 circuit of back also the utility model is carried out the circuit signal that electrical isolation also is responsible for completing RS485 simultaneously and is converted to the RS232 signal for the SPC3 circuit.The SPC3 circuit is completed the Signal coding work of signal decoding and the cpu circuit of RS232 circuit take the SPC3 chip as core, complete the bi-directional conversion of data from CPU to the bus.SPC3 is the ProfiBus-DP protocol-specific codec chip of Siemens Company, for exploitation ProfiBus-DP bus provides necessary hardware supported, also simplify simultaneously and numerous and diverse software programming work, saved the occupancy of CPU, CPU can be placed on the energy major part in the realization of technological process.
Fig. 4 is cpu circuit of the present utility model, because the utility model requires fast speed responded and calculate, so adopt CPU at a high speed as central processing unit, this example adopts high speed STM32 chip to complete, STM32 belongs to ARM7 series CPU, by the development of ST company, with at a high speed, stable, low-power consumption is famous.
The CPU model that the utility model is selected is STM32F103C8T7, program ROM with 128k, the RAM of 20K, 4 timers, 16 road PWM and 37 road IO interfaces, the frequency of operation of 72M, can work under-40 ℃ ~ 105 ℃, satisfy the requirement of commercial Application fully, this CPU also has USB2.0 simultaneously, iic bus etc. function, just the utility model use less than.Cpu circuit is responsible for the data of each several part circuit of the present utility model are gathered the realization of calculating and instruction output and industrial flow.Because calculated amount is larger, need to process a lot of data, so the storage space of this CPU is just a bit not much of that, for guaranteeing reliability, so the utility model has increased memory circuitry, see Fig. 6, the utility model has adopted the HM62812-70PC static memory, this storer has the storage space of 128k, can satisfy data operation requirement of the present utility model fully.
Fig. 7 is watchdog circuit of the present utility model, although the CPU that the utility model adopts has high stability, but site environment is abominable, and institute thinks assurance under any circumstance, and CPU can steady operation, so increased watchdog circuit, the utility model grassland the chip of IM813L as watchdog circuit, this chip has temperature, voltage, the multiple functions such as cpu signal supervision can guarantee the reliably working of CPU fully.
3. principle of work
Principle of work of the present utility model is as follows:
1) Central Control Room sends to hoister by communication module and gets the tank signal, robotization module positional information of hoister relatively after reading this signal, and CPU sends the instruction that hoister hoists on the machine after condition satisfies.
2) on machine, CPU after the instruction that hoists that obtains the robotization module, carries out the protective condition judgement, sends to the frequency converter that hoists the instruction that hoists after condition satisfies, and the Frequency Converter Control that hoists lifting electric motor is carried out the action that hoists.
3) after hoister rose and is raised to the rising limit, on machine, CPU cancelled the instruction that hoists to the frequency converter that hoists, and stops thereby hoisting.On machine, PLC sends to the robotization module the complete signal that hoists afterwards.
4) send the signal of next step instruction of request after the complete signal that hoists of robotization module PLC on receiving machine to the Central Control Room communication module.
5) Central Control Room sends target coke oven position signalling and traveling instruction after receiving next step command signal of request.
6) robotization module is carried out the traveling position judgment after the target position signal that receives Central Control Room and traveling signal, PLC sends the signal that traveling is advanced to target coke oven position on the machine after satisfying condition.
7) on machine, PLC is carrying out the judgement that logics are protected in a series of travelings on volume again after the traveling control signal; send steering order to the traveling frequency converter after satisfying condition; the traveling frequency converter is controlled the operation of traveling motor under this instruction is controlled, thereby hoister moves to target stove direction.
8) hoister in the target stove operational process on machine PLC and robotization module all detect position and the guard mode of hoister in real time, guarantee the safe operation of hoister.The robotization module detect hoister arrive the target location after the PLC instruction that challenges on the machine, on machine, PLC controls the hoister traveling and stops, the robotization module detects hoister and stops afterwards that PLC sends hoister decline instruction on the machine.
9) on machine, PLC controls the frequency converter that hoists and carries out the hoister down maneuver after receiving this instruction.
10) hoist position and the spacing state of coke oven of robotization module detection hoister in hoister decline process, when burnt tank arrived the coke oven top, it is out of service that the robotization module is controlled lifting mechanism by PLC on machine.
11) after hoister stops, the communication module of robotization module by Central Control Room detects the burnt situation of dress of burnt tank, after confirming dress close-burning bundle by machine on PLC control the frequency converter execution that the hoists action that hoists.
12) after same hoister arrived the rising limit, the robotization module was controlled hoister by PLC on machine and is stopped.
13) then robotization module is controlled running mechanism by PLC on machine again and is turned back to the original position.
14) then robotization module drops to by PLC control lifting mechanism on machine the original position that hoists.
15) drop to the original position that hoists after, the robotization module enters waiting status, and sends the flow process end signal to Central Control Room.
4. software programming
On the program of the above-mentioned control process control process of foundation and communications protocol establishment automation control module of the present utility model and machine, the program of PLC, realize the unmanned opertaing device function of coke dry quenching hoister.
Claims (1)
1. unmanned opertaing device of coke dry quenching hoister, it is characterized in that: the unmanned opertaing device of this coke dry quenching hoister comprises that on the frequency converter that hoists, traveling frequency converter, machine, PLC, operator's console PLC, HMI, the position coder that hoists, traveling position coder, Central Control Room communication module and automation control module are connected by the data communication bus; Automation control module is made of bus interface circuit, bus encoding/decoding circuit, power circuit, memory circuitry, watchdog circuit, cpu circuit; Bus interface circuit, bus encoding/decoding circuit, power circuit, memory circuitry, watchdog circuit all are connected to cpu circuit, consist of together a standalone module; Lifting electric motor is connected with the frequency converter that hoists; The lifting velocity scrambler frequency converter that also hoists is connected; Lifting electric motor is connected with the lifting velocity scrambler is coaxial; The traveling motor is connected with the traveling frequency converter; The traveling speed scrambler is connected with the traveling frequency converter; The traveling motor is connected with the traveling speed scrambler is coaxial.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220591529 CN202929421U (en) | 2012-11-09 | 2012-11-09 | Unmanned control equipment for coke dry quenching lifting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220591529 CN202929421U (en) | 2012-11-09 | 2012-11-09 | Unmanned control equipment for coke dry quenching lifting machine |
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| Publication Number | Publication Date |
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| CN202929421U true CN202929421U (en) | 2013-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220591529 Expired - Fee Related CN202929421U (en) | 2012-11-09 | 2012-11-09 | Unmanned control equipment for coke dry quenching lifting machine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103466462A (en) * | 2013-08-26 | 2013-12-25 | 内蒙古包钢钢联股份有限公司 | Automatic material distribution system and automatic material distribution method for rolling equipment |
| CN103941669A (en) * | 2014-03-25 | 2014-07-23 | 济钢集团国际工程技术有限公司 | Novel dry quenching data processing and prewarning device |
| CN105314540A (en) * | 2015-04-30 | 2016-02-10 | 南京晟辉自控科技有限公司 | Application and design method for dry-quenched coke lifting machine operation early-warning management system |
| CN113075943A (en) * | 2021-03-29 | 2021-07-06 | 马鞍山钢铁股份有限公司 | Control system for preventing dry quenching hoister from sliding tank |
-
2012
- 2012-11-09 CN CN 201220591529 patent/CN202929421U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103466462A (en) * | 2013-08-26 | 2013-12-25 | 内蒙古包钢钢联股份有限公司 | Automatic material distribution system and automatic material distribution method for rolling equipment |
| CN103941669A (en) * | 2014-03-25 | 2014-07-23 | 济钢集团国际工程技术有限公司 | Novel dry quenching data processing and prewarning device |
| CN105314540A (en) * | 2015-04-30 | 2016-02-10 | 南京晟辉自控科技有限公司 | Application and design method for dry-quenched coke lifting machine operation early-warning management system |
| CN113075943A (en) * | 2021-03-29 | 2021-07-06 | 马鞍山钢铁股份有限公司 | Control system for preventing dry quenching hoister from sliding tank |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20171109 |