CN102191369B - Ignition control system of cold-rolling continuous annealing furnace - Google Patents
Ignition control system of cold-rolling continuous annealing furnace Download PDFInfo
- Publication number
- CN102191369B CN102191369B CN 201110103903 CN201110103903A CN102191369B CN 102191369 B CN102191369 B CN 102191369B CN 201110103903 CN201110103903 CN 201110103903 CN 201110103903 A CN201110103903 A CN 201110103903A CN 102191369 B CN102191369 B CN 102191369B
- Authority
- CN
- China
- Prior art keywords
- ignition
- valve
- igniting
- programmable logic
- logic controller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Regulation And Control Of Combustion (AREA)
Abstract
The invention relates to an ignition control system of a cold-rolling continuous annealing furnace. An ignition station is connected with a main control programmable logic controller and an ignition observing disc respectively; the main control programmable logic controller is bi-directionally connected with a field operation box; the ignition observing disc is bi-directionally connected with a field ignition disc; after being connected in parallel with a nitrogen pipe, a gas pipe is connected with an ignition nozzle; an air pipe is connected with the ignition nozzle; a pneumatic shutoff valve and a valve station are arranged on the gas pipe; the pneumatic shutoff valve is arranged on the nitrogen pipe; the valve station is arranged on the air pipe; the main control programmable logic controller is respectively connected with and controls the pneumatic shutoff valve; the ignition observing disc is connected with and controls the valve station; the main centre of the ignition observing disc is the ignition observing disc consisting of a flame detection unit and a programmable logic controller (PLC) control unit; and ultraviolet flame detectors are uniformly arranged on the ignition nozzle and are connected with the ignition observing disc. The system has few solenoid valves, low engineering cost, low maintenance cost, short ignition time, low debugging workload, high safety and a relatively independent ignition system.
Description
Technical field
The present invention relates to the metallurgical furnace Iganition control system, particularly a kind of ignition control system of cold-rolling continuous annealing furnace.
Background technology
The electrical heating type continuous furnace commonly used with respect to the Conventional Heat Treatment industry, iron and steel enterprise uses the continuous annealing furnace of gas heating mostly, and this is byproduct coke-oven gas (COG), coal gas of converter (LDG) and the blast furnace gas (BFG) that fully uses iron and steel enterprise to produce in ironmaking, steelmaking process.
The present common two kinds of burner ignition schemes of cold rolled continuous annealing stove: one, burner adopts pulse-combustion control, each impulse burner disposes man-to-man intelligent Burning Controller (BCU), and the each time igniting of burner is all finished automatically by the instruction that BCU accepts distant place master PLC; Another kind of scheme then disposes the ever-burning flame igniter burner, and its main burner adopts continuous ratio to regulate.At present domestic main industrial furnace company normally increases the control magnetic valve at gas line and the airline of each igniter burner, be the automatic ignition assemblies such as each igniter burner configuration ignition transformer and spark electrode (sparking plug), and dispose simple flame detecting box, accept the firing command automatic ignition of distant place master PLC in the mode of remote I/O substation.
The scheme that at present domestic other stove companies use has following shortcoming:
(1) magnetic valve quantity is huge, engineering cost, maintenance cost height; Poor stability.
(2) ignition operation too relies on the HMI picture of main PLC, and ignition time is long.
(3) formation of ignition system does not form a relative dispersion and system independently with main PLC; Debugging work load is large, and security of system is poor.
(4) ignition system can not be relatively independent, can't be as a stand-alone product exploitation, popularization.
In view of this, seek a kind of ignition control system of cold-rolling continuous annealing furnace and become pursuing a goal of these those skilled in the art.
Summary of the invention
Task of the present invention provides a kind of ignition control system of cold-rolling continuous annealing furnace, and it has solved the existing problem of above-mentioned prior art, and magnetic valve quantity is reduced, and engineering cost, maintenance cost are low, safe; Ignition operation does not rely on the HMI picture of main PLC, and ignition time is short; The formation of ignition system and main PLC form a relative dispersion and system independently; Debugging work load is little, and security of system is high; Ignition system is relatively independent, can be as a stand-alone product exploitation, popularization.
Technical solution of the present invention is as follows:
A kind of ignition control system of cold-rolling continuous annealing furnace comprises at least: igniter burner, be with valvular gas pipe, be with valvular blast main, be with valvular nitrogen tube, field operation box (201), master control programmable logic controller (300), on-the-spot flashpan (400), igniting observation dish (401) and lighting valve station (402);
Described lighting valve station (402) connects respectively master control programmable logic controller (300) and igniting observation dish (401), the two-way connection field operation box of described master control programmable logic controller (300) (201), the on-the-spot flashpan (400) of the two-way connection of described igniting observation dish (401);
Be connected igniter burner after described gas pipe and the nitrogen tube parallel connection, described blast main connects igniter burner; Described gas pipe is provided with pneumatic cut-off valve and valve station, and described nitrogen tube is provided with pneumatic cut-off valve, and described blast main is provided with the valve station;
Described master control programmable logic controller (300) connects respectively and controls all pneumatic cut-off valves, and described igniting observation dish (401) connects and controls all valve stations;
The maincenter of on-the-spot flashpan (400) is by a flame detection unit and the igniting observation dish (401) that the PLC control unit forms;
Ultraviolet flame detector all is set on the described igniter burner, and ultraviolet flame detector connects igniting observation dish (401).
Described igniter burner is the ever-burning flame igniter burner.
The electrode discharge time of described igniting is set by the time relay in the igniting observation dish (401).
Described igniting observation dish (401) panel is provided with toggle switch, and each igniter burner is by the identification of sequence number codified.
The present invention makes it compared with prior art owing to adopted above technical scheme, and the magnetic valve quantity that the invention provides ignition control system of cold-rolling continuous annealing furnace is few, and engineering cost, maintenance cost are low, safe; Ignition operation does not rely on the HMI picture of main PLC, and ignition time is short; The formation of ignition system and main PLC form a relative dispersion and system independently; Debugging work load is little, and security of system is high; Ignition system is relatively independent, can be as a stand-alone product exploitation, popularization.
Description of drawings
Fig. 1 is the flashpan control principle drawing of a kind of ignition control system of cold-rolling continuous annealing furnace of the present invention.
Reference numeral:
201 is field operation box, and 300 are the master control programmable logic controller, and 400 is flashpan, and 401 are igniting observation dish, and 402 is the lighting valve station.
Embodiment
Below in conjunction with drawings and Examples the present invention is elaborated.
Referring to Fig. 1, the invention provides a kind of ignition control system of cold-rolling continuous annealing furnace, mainly by igniter burner, be with valvular gas pipe, be with valvular blast main, be with valvular nitrogen tube, field operation box 201, master control programmable logic controller 300, on-the-spot flashpan 400, igniting observation dish 401 and lighting valve station 402 etc. form.
Lighting valve station 402 connects respectively master control programmable logic controller 300 and igniting observation dish 401, master control programmable logic controller 300 two-way connection field operation boxes 201, and the on-the-spot flashpan 400 of 401 two-way connections is coiled in the igniting observation.
Be connected igniter burner after gas pipe and the nitrogen tube parallel connection, blast main connects igniter burner.Pneumatic cut-off valve and valve station are set on the gas pipe, pneumatic cut-off valve is set on the nitrogen tube, the valve station is set on the blast main.
Master control programmable logic controller 300 connects respectively and controls all pneumatic cut-off valves, and 401 connections of igniting observation dish are also controlled all valve stations.
The maincenter of on-the-spot flashpan 400 is by a flame detection unit and the igniting observation dish 401 that the PLC control unit forms.Igniter burner adopts ever-burning flame, and each igniter burner all arranges ultraviolet flame detector, and it is corresponding one by one that every road ultraviolet flame detector and the fire in the igniting observation dish 401 are examined amplification processor, forms complete flame detection unit.The electrode discharge time of igniting is set by the time relay in the igniting observation dish 401.The igniting observation is coiled 401 panels and is provided with toggle switch, and each igniter burner is by the identification of sequence number codified.
Ignition control system of cold-rolling continuous annealing furnace of the present invention can adopt mode shown in Figure 1 to implement in actual applications:
On-the-spot valve station 402: according to the layout of continuous annealing furnace master burner, require corresponding several valve station 402(reference datas of composition to be the igniter burner combined process of back side and fore side: 8～20 groups of igniter burners in each valve station), at valve station main gas electromagnetic valve, air magnetic valve and ratio valve to be set; On the combustion gas of each igniter burner and air arm, independent magnetic valve is set no longer, i.e. the many groups of valve station control igniter burner batch synchronizations igniting.Configuration on-the-spot flashpan 400 in per two (or three) valve stations is finished after " igniting ", the igniting of part burner of igniter burner " lighting a fire again " of success.On-the-spot ignition operation case 400 links to each other with igniting observation dish 401, and the electrode discharge time of igniting is set by the time relay in the igniting observation dish, and the electrode discharge time of igniting decided on the time that operator pin corresponding button on the flashpan 400 again; Depend on the purging requirement of nitrogen the ignition time between batch, the timed interval is limited by the igniting PLC in the igniting observation dish 401, guarantees the safety of ignition operation.
Igniting is seen and is looked into dish 401: as the maincenter of on-the-spot ignition operation case 400, be comprised of a flame detection unit (cabinet) and a PLC control unit (cabinet).Flame detection unit is by the modular requirement design, the UV(ultraviolet flame detector of all burners) photosignal enters flame detection unit, amplification by secondary component in the cabinet (flame relay) is processed, finally be converted into housing acceptable switching value signal, can coil the fired state that 401 usefulness LED lamps are concentrated, intuitively shown each burner in observation.The core of housing is PLC, and its internal processes has been contained all respects such as the selection of igniter burner and ignition operation, igniting safety interlocking, data communication.
The igniting observation is coiled and also is provided with toggle switch on 401 panels, and each igniter burner is by the identification of sequence number codified.By the burner code is set, can coils 401 panels in observation and specify corresponding burner before ignition operation, to select to add or withdraw from the igniting sequence.
401 igniting PLC no longer is the subordinate substation of main control PLC system 300 in the igniting observation dish, follow that Controlling System is disperseed, relatively independent principle of design, igniting PLC and main control PLC 300 are carried out communication by SIEMENS DP/DP COUPLER, can finish easily the real time data exchange.
Ignition control process: the master PLC system 300 determines ignition preparation conditions have been met, sending fire " ready " signal to the ignition shutoff valve manifold box 201 on -site operation , operating personnel to determine the corresponding control box "READY" indicator lights after pressing the start button "OPEN" - select the desired ignition process section - confirm that the process section of the corresponding valve station 402 is ready ( ignition coil observed ignition control box 400 401 and the corresponding "READY" indicator lights ) - confirm that the process belongs to the ignition burner section is ready ( ignition observe the ignition burner plate 401 corresponds to "USE" indicator lights ) - in the ignition control box 400, press the start button "ON " - ignition observed ignition coil 401 receives a request - ignition 402 air solenoid valve station (ASV) and the gas solenoid valve (GSV) in order to open - ignition burner ignition transformer corresponding to the ignition electrode (IG) to generate high pressure EDM - UV flame detector (FD) detects the ignition burner flame - ignition burner ignition observation plate 401 corresponds to "FLAME? ON" indicator lights - all paragraph "USE" and " FLAME? ON " indicator lights are paired - illuminated pushbutton ignition coil 400 on the" ON " indicator light - paragraph ignition operation is completed - the process followed by the above paragraphs ignition - all valve stations 402 completion of the corresponding ignition burner ignition - master PLC system 300 receives the signal chain , turn the main burner control mode.Referring to accompanying drawing.
Along with iron and steel enterprise is more and more higher to the requirement of energy-conserving and environment-protective, the significant heat-accumulating burner of energy-saving effect applies in the design of various process furnace and continuous annealing furnace more and more.The characteristics of heat-accumulating burner are that main burner is arranged in pairs, must dispose can not produce when the ever-burning flame igniter burner guarantees commutation and take off fire.For the heat-accumulating burner that the automatic ignition requirement is arranged, the Iganition control system technology that the present invention dominates has extraordinary utilization prospect.
In sum, the magnetic valve quantity that the invention provides ignition control system of cold-rolling continuous annealing furnace is few, and engineering cost, maintenance cost are low, safe; Ignition operation does not rely on the HMI picture of main PLC, and ignition time is short; The formation of ignition system and main PLC form a relative dispersion and system independently; Debugging work load is little, and security of system is high; Ignition system is relatively independent, can be as a stand-alone product exploitation, popularization.
Certainly, those skilled in the art in the art will be appreciated that, above-described embodiment only is that the present invention is described, and be not as limitation of the invention, as long as in connotation scope of the present invention, all will drop in the scope of claim of the present invention the variation of above-described embodiment, modification etc.
Claims (4)
1. ignition control system of cold-rolling continuous annealing furnace, it is characterized in that, at least comprise: igniter burner, be with valvular gas pipe, be with valvular blast main, be with valvular nitrogen tube, field operation box (201), master control programmable logic controller (300), on-the-spot flashpan (400), igniting observation dish (401) and lighting valve station (402), the on-the-spot flashpan (400) of the two-way connection of described igniting observation dish (401);
Described lighting valve station (402) connects respectively master control programmable logic controller (300) and igniting observation dish (401), the two-way connection field operation box of described master control programmable logic controller (300) (201);
Be connected igniter burner after described gas pipe and the nitrogen tube parallel connection, described blast main connects igniter burner; Described gas pipe is provided with pneumatic cut-off valve and valve station, and described nitrogen tube is provided with pneumatic cut-off valve, and described blast main is provided with the valve station;
Described master control programmable logic controller (300) connects respectively and controls all pneumatic cut-off valves, and described igniting observation dish (401) connects and controls all valve stations;
The maincenter of on-the-spot flashpan (400) is by a flame detection unit and the igniting observation dish (401) that the PLC control unit forms;
Ultraviolet flame detector all is set on the described igniter burner, and ultraviolet flame detector connects igniting observation dish (401).
2. ignition control system of cold-rolling continuous annealing furnace according to claim 1, it is characterized in that: described igniter burner is the ever-burning flame igniter burner.
3. ignition control system of cold-rolling continuous annealing furnace according to claim 1 is characterized in that: the electrode discharge time of described igniting is set by the time relay in the igniting observation dish (401).
4. ignition control system of cold-rolling continuous annealing furnace according to claim 1, it is characterized in that: described igniting observation dish (401) panel is provided with toggle switch, and each igniter burner is by the identification of sequence number codified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110103903 CN102191369B (en) | 2011-04-25 | 2011-04-25 | Ignition control system of cold-rolling continuous annealing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110103903 CN102191369B (en) | 2011-04-25 | 2011-04-25 | Ignition control system of cold-rolling continuous annealing furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102191369A CN102191369A (en) | 2011-09-21 |
| CN102191369B true CN102191369B (en) | 2013-04-10 |
Family
ID=44600233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110103903 Active CN102191369B (en) | 2011-04-25 | 2011-04-25 | Ignition control system of cold-rolling continuous annealing furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102191369B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266178A (en) * | 2014-09-25 | 2015-01-07 | 河北钢铁股份有限公司唐山分公司 | Regenerative burner capable of completely burning coal gas |
| CN104775019B (en) * | 2015-04-09 | 2017-06-16 | 北京首钢冷轧薄板有限公司 | A kind of control system for continuous annealing furnace cooling section oxygen content automatic detection |
| CN109897654B (en) * | 2017-12-11 | 2021-04-06 | 上海梅山钢铁股份有限公司 | Automatic diffusion ignition control device and control method for coke oven |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070068511A1 (en) * | 2005-09-28 | 2007-03-29 | Hearth & Home Technologies | Gas fireplace monitoring and control system |
| CN100498073C (en) * | 2006-03-10 | 2009-06-10 | 上海宝信软件股份有限公司 | Controlling method for air single-preheating discrete reversal valve heat accumulating burner |
-
2011
- 2011-04-25 CN CN 201110103903 patent/CN102191369B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102191369A (en) | 2011-09-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102191369B (en) | Ignition control system of cold-rolling continuous annealing furnace | |
| CN101979464A (en) | Coke oven burner double-flue supplemental heating method | |
| CN104501206A (en) | Automatic ignition system of chlorine hydride synthesis furnace and control method of automatic ignition system | |
| CN105200225A (en) | Automatic positioning tapping device for end-in and side-out pusher-type heating furnace | |
| CN104357646B (en) | A kind of online apparatus for fast switching of annealing furnace double fuel | |
| CN203285545U (en) | Zero-duty fuel operation system for gas turbine | |
| CN201170692Y (en) | Preheating furnace for mold | |
| CN203147817U (en) | Automatic ignition torch of flame cutting machine | |
| CN201852093U (en) | Air single heat-storage fuel continuous feeding type burner nozzle | |
| CN204574840U (en) | Burner for heating furnace multifunctional control device | |
| CN202733932U (en) | Pipe system capable of recovering low heat value gas to combust in boiler | |
| CN202054877U (en) | Ignition control device of cold-rolling continuous annealing furnace | |
| CN201391891Y (en) | Automatic ignition system for portable numerically controlled flame cutting machine | |
| CN201293319Y (en) | Flame adjustable single thermal storage burner | |
| CN202927899U (en) | Control system of gas stove | |
| CN201992686U (en) | Integrated combustion controller for impulse burner of heat treatment furnace | |
| CN201652331U (en) | Heat-storage type combustion system of high-temperature industrial furnace | |
| CN207146421U (en) | A kind of boiler modular pulse shock wave soot blower system | |
| CN102374795A (en) | High-efficiency heat-storing smoke-gas residual-heat recovering and utilizing device for industrial furnace | |
| CN202989212U (en) | Double fuel gas fast switch annealing furnace | |
| CN202024331U (en) | Self-thermal storage continuous combustion type radiant tube burning machine | |
| CN206191636U (en) | Full -automatic waste material oil boiler control system that fires | |
| CN201680712U (en) | Annular sleeve kiln burner ignition control device | |
| CN211667854U (en) | Heating furnace nozzle safety ignition control system | |
| CN109439345B (en) | One-driving-two positive pressure baking oven device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |