CN206083845U - Ladle baking equipment and control system thereof - Google Patents

Abstract

The utility model provides a ladle baking equipment and control system thereof, ladle baking equipment includes the support, be equipped with the cantilever beam on the support, the below of cantilever beam is equipped with electric putter, it reciprocates along the support to promote the cantilever beam through electric putter, one side of cantilever beam is fixed with the be built by contract, the below correspondence of be built by contract is equipped with the ladle, the be built by contract covers in the open -top of ladle department, the air -blower is installed to one side of support, the air -blower passes through air piping and connects in the combustor, the combustor sets up on the be built by contract, the combustor still is connected with gas pipeline, provide the gas through gas pipeline for the combustor, the combustor is just to the ladle, can spray the combustion flame in the bottom of ladle, in order to toast the ladle. The utility model discloses it is high that the combustor fires airflow outlet speed, and flame jet length is long, the ladle of can drying completely, and ignite and the lid of be built by contract closes through control system automatic control, and safe and reliable still being equipped with the flame -out part of protecting, security in the time of more can guaranteeing to use.

Description

A kind of ladle baking facilities and its control system

Technical field

The utility model belongs to iron and steel safety production technique field, more particularly to a kind of ladle baking facilities and its control System.

Background technology

Ladle accepts molten steel for steel mill, Foundry Works also known as steel ladle before open hearth, electric furnace or converter, coordinates continuous casting Machine carries out pouring practice, but has to dry in ladle before ladle use, if there is water mark in ladle, adds high temperature During molten steel, ladle can be caused to damage or burst, there is security risk.

In baking, the flame Jing of injection cannot often reach ladle bottom to existing ladle baking facilities, it is likely that cause Ladle bottom is not dried completely, and there are some potential safety hazards in drying course, easily causes security incident.

Therefore, it is necessary to a kind of more preferable ladle baking facilities are designed, to solve the above problems.

Utility model content

For the problem that prior art is present, the utility model provides one kind can be sprayed combustion flame to ladle bottom, To toast ladle completely, and combustion process can be automatically controlled, the high ladle baking facilities of safety coefficient and its control system.

To achieve these goals, the utility model is adopted the following technical scheme that：

A kind of ladle baking facilities, including support, the support is provided with cantilever beam, and below the cantilever beam electricity is provided with Dynamic push rod, promotes the cantilever beam to move up and down along the support by the electric pushrod, and the side of the cantilever beam is fixed There is clad, ladle is correspondingly provided with below the clad, the clad is placed on the top open part of the ladle, the support Side is provided with air blast, and the air blast is connected to burner by air pipe line, and the burner is arranged at the clad On, the burner is also associated with fuel gas pipeline, and combustion gas, the burner are provided for the burner by the fuel gas pipeline The ladle is right against, combustion flame can be sprayed in the bottom of the ladle, to toast the ladle.

Further, the bottom of the support is provided with wheel, for for support movement.

Further, the support is provided with vertical guide rail, and the cantilever beam is respectively provided on two sides with guide wheel, when described electronic When push rod promotes the cantilever beam, the guide wheel is moved up and down along the guide rail.

Further, suspension hook is provided with the outside of the ladle, for crane handling.

Further, the air pipe line is provided with electric butterfly valve and Hand-operated butterfly valve, and for adjusting the burner is passed through Air mass flow.

Further, the fuel gas pipeline is provided with proportioning valve and magnetic valve, and the proportioning valve is used to distribute combustion gas and air Flow, the magnetic valve is maintained a normally open when being powered, and is automatically switched off during power-off.

A kind of control system based on above-mentioned ladle baking facilities, including gland part and ignition section, the gland portion Dividing includes automatic controller, and the automatic controller is connected to the electric pushrod, and by the automatic controller signal is sent, The electric pushrod drives the cantilever beam and the clad to move towards the ladle, and the clad is pressed on the ladle Open top, described ignition section includes ignition controller, and the ignition controller is by connection in the burner The ignitor in portion, the ignition controller is also attached to the air blast, the electric butterfly valve of the air pipe line and the combustion The magnetic valve of air pipe, when the ladle is toasted, the ignition controller sends signal, and the ignitor draws electricity fire Flower, while the magnetic valve and the air blast are automatically opened up, combustion gas is ignited into after the burner by electric spark, injection combustion Flame make a fire to toast the ladle, it is combustion-supporting that air enters the burner.

Further, the ignition controller and the automatic controller are arranged in the electric cabinet of the support side, institute State electric cabinet and be provided with button, the button is used to drive the ignition controller and automatic controller automatic or manual fortune OK.

Further, also flame monitor is provided with the burner including blowout protection part, when the flame monitor When detecting loss of ignition or accident extinguishing, the quick action emergency valve of the fuel gas pipeline disconnects automatically, to cut off fuel gas pipeline, stops Only ignition procedure.

Further, also including temperature-controlled portion, according to the temperature detected in ladle, using PLC and temperature controller, the combustion is controlled The aperture of valve on air pipe and the air pipe line, with regulating gas and the flow of air, when temperature reaches in the ladle During setting value, automatic constant-temperature baking.

The beneficial effects of the utility model：

Combustion gas is provided for burner by fuel gas pipeline, while air pipe line provides combustion air for burner, combustion gas exists Burning in burner produces flame, sprays in ladle bottom, can completely dry ladle, and the combustion gas of the utility model burner is flowed out Mouth speed is high, and flame spray penetration is long, can completely dry ladle, and by control system automatic control ignition and the lid of clad Close, it is safe and reliable, blowout protection part is additionally provided with, more ensure that security when using.

Description of the drawings

Fig. 1 is the structural representation that the utility model ladle baking facility clad is covered；

Fig. 2 is the structural representation that the utility model ladle baking facility clad is opened；

In figure, 1-support, 2-ladle, 3-clad, 4-wheel, 5-cantilever beam, 6-guide wheel, 7-guide rail, 8-electricity Dynamic push rod, 9-air blast, 10-air pipe line, 11-electric butterfly valve, 12-Hand-operated butterfly valve, 13-burner, 14-Gas Pipe Road, 15-magnetic valve, 16-electric cabinet, 17-button, 18-suspension hook.

Specific embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present utility model, rather than all Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work premise Lower obtained every other embodiment, belongs to the scope of the utility model protection.

Such as Fig. 1 and Fig. 2, a kind of ladle baking facilities of the utility model offer, including support 1 are arranged at the side of support 1 Ladle 2, ladle 2 is fixed on ground, and support 1 is the frame-type structure-steel framing for standing on ground, using section steel manufacture, the bottom of support 1 Portion is provided with wheel 4, and wheel 4 is provided with four, and two of which is driving moment, can driving arm 1 move forward and backward so as near or it is remote From ladle 2, when ladle 2 needs baking, then apparatus for baking is driven near ladle 2.The top of ladle 2 is provided with clad 3, for covering Together in the open top of ladle 2, clad 3 is to prevent the lost component of heat in heating of ladle 2, mainly by steel plate, 1400 temperature resistant fiber chunks are constituted, the characteristics of it has lightweight, high temperature resistant, long service life.The outside of ladle 2 is provided with suspension hook 18, so that crane is by the other positions of the handling of ladle 2.

Cantilever beam 5 is installed, cantilever beam 5 is perpendicular with support 1 on support 1, in the present embodiment, two sides of support 1 Edge is respectively equipped with guide rail 7, and cantilever beam 5 is respectively provided on two sides with two guide wheels 6, and guide wheel 6 is located on guide rail 7.The lower section of cantilever beam 5 Electric pushrod 8 is provided with, support 1 is fixed in one end of electric pushrod 8, and its external part is then resisted against upwards cantilever beam 5, by electronic The impetus of push rod 8, can drive the opposite brackets 1 of cantilever beam 5 to move up and down, and guide wheel 6 slides in guide rail 7 when mobile.Clad 3 Be fixed on the side of cantilever beam 5, cantilever beam 5 is the connector of clad 3 and support 1, its intensity can bear the weight of clad 3 and Lifted.Above-mentioned apparatus for baking adopts vertical structure, clad 3 vertically to open and close, and driving force is by installed in the lower section of cantilever beam 5 Electric pushrod 8 provide, electric pushrod 8 drive clad 3 move up and down, with adapt to toast certain limit in differing heights ladle 2。

The side of support 1 is provided with air blast 9, and air blast 9 is connected to burner 13, air pipe line by air pipe line 10 10 are provided with electric butterfly valve 11 and Hand-operated butterfly valve 12, for adjusting the air mass flow for being passed through burner 13.Burner 13 is also connected with There is fuel gas pipeline 14, in the utility model, what is be passed through in fuel gas pipeline 14 is natural gas, therefore can avoid producing in burning Raw black smoke, and natural gas caliber is little, therefore fuel gas pipeline 14 can be flange-connection stainless steel metal flexible pipe access burner 13.Fuel gas pipeline 14 Proportioning valve and magnetic valve 15 are provided with, proportioning valve is used to distribute combustion gas and air mass flow, and magnetic valve 15 is maintained a normally open when being powered, It is automatically switched off during power-off, is automatically controlled by controller.

Burner 13 is installed on clad 3, and burner 13 is inclined slightly inwards when installing, and makes flame top reach the bottom of ladle 2 Portion center.Burner 13 is right against ladle 2, combustion flame can be sprayed in the bottom of ladle 2, to toast ladle 2.This practicality is new Type burner 13 adopts Shi Neng companies SIC125 types (300,000 kilocalorie) high speed temperature adjustment self-control burner, and muzzle velocity is up to 75m/ s.High speed temperature adjustment self-control burner system is by high velocity burner, HSK-B (inside setting German Huo Kede companies IES258 controllers) intelligence Energy type combustion controller, Italian import GS type electromagnetic valve for natural gas, air dibit regulating valve (import coil), Italy are original-pack Import isolating high-pressure ignitor and fire inspection device composition.

The high speed temperature adjustment self-control burner that the utility model is adopted has the characteristics that：1. the gas flow outlet of burner is fast Degree is high, and the hot-fluid of high speed enhances circulation and the convection heat transfer' heat-transfer by convection of furnace gas, improves the uniformity and heat transfer efficiency of furnace temperature, Thus heating quality is improve, shorten the heat time.2. burner combustion gas mixes for three times with air, and in the combustion chamber for carrying Interior burning, can accomplish fully completely to burn, so as to fundamentally eliminating black smoke, and with reliable safeguard protection dress Put, be provided with automatic blowing before igniting, automatic ignition programme-control is stopped working, tempering Automatic monitoring and protection and warning etc. is multinomial multi-level Safety precautions.3. burner is capable of achieving by the special intelligent combustion controller control being furnished with import barrier device as core Automatic ignition, proportion adjustment, it is flame-out report to the police, the automatic/hand control of blowout protection and the overall process such as light a fire again.4. burner is matched somebody with somebody There is automatic control special valve to be capable of achieving air feed, the quantitative control of supply.Burning deutomerite service life >=5 year, prosthomere fireproof casing can Removable parts service life >=2 year.The utility model high velocity burner good mixing, burning is complete, and the thermal efficiency is high.And SIC125 type natural gas high velocity burners realize clean combustion, under regular service conditions, in its combustion product（The feelings of 3% oxygen content Under condition）, DS NOx Est amount is 96-135mg/Nm3, it is ensured that overall DS NOx Est amount, maximum allowable rate of discharge are up to standard.

The load of burner 13 increased 20% by the utility model, can make combustion flame high speed, turbulent flow and lengthen, to steel When bag 2 is toasted, flame flings the bottom of ladle 2, makes thermally equivalent in ladle 2, can shorten baking time, and operation is saved as far as possible Expense.

The utility model also provides a kind of control system of above-mentioned ladle baking facilities, including gland part, ignition section, Blowout protection part and temperature-controlled portion.

The side of support 1 is provided with electric cabinet 16, the control of gland part, ignition section, blowout protection part and temperature-controlled portion Device processed is respectively positioned in electric cabinet 16, respectively by connection to corresponding control element, electric cabinet 16 be provided with it is multiple by Button 17, including one-key start button and independent function button, button 17 is used for drive ignition controller and automatic controller is automatic Or operation manually, realize automatically controlling and controlling manually for above-mentioned ladle baking facilities.

Gland part includes automatic controller, and automatic controller is connected to electric pushrod 8, before ladle 2 is toasted, control automatically Device processed sends signal, and electric pushrod 8 starts, and drives cantilever beam 5 and clad 3 to move towards ladle 2, and clad 3 is pressed on into steel The open top of bag 2, while burner 13 is fixed on clad 3, at the top of ladle 2.Spacing opening is provided with control system Close, support is provided with mechanical stop limiter, and when cantilever beam 5 and clad 3 move to mechanical stop limiter, limit switch is from dynamic circuit breaker Open, automatically power off electric pushrod 8, stop promoting, therefore the shifting of clad 3 and cantilever beam 5 can be set according to the height of ladle 2 Dynamic scope.

Ignition section includes ignition controller, and ignition controller passes through ignition power of the connection inside burner 13 Pole, ignition controller is also attached to the magnetic valve 15 of air blast 9, the electric butterfly valve 11 of air pipe line 10 and fuel gas pipeline 14, when During baking ladle 2, ignition controller sends signal, and ignitor draws electric spark, while magnetic valve 15 and air blast 9 are beaten automatically Open, combustion gas is ignited into after burner 13 by electric spark, to toast ladle 2, air is helped spray combustion flame into burner 13 Combustion.The utility model igniter adopts high energy electron automatic ignition device.

Blowout protection part is completed by flame scanning system, and in burner 13 flame monitor is provided with, and works as flame monitor When detecting in ladle loss of ignition or accident extinguishing, the quick action emergency valve of fuel gas pipeline 14 disconnects automatically, to cut off Gas Pipe Road 14, stop ignition procedure, to ensure use in security.

Temperature-controlled portion is, according to the temperature detected in ladle 2, using PLC and temperature controller, to control fuel gas pipeline 14 and air The aperture of valve on pipeline 10, with regulating gas and the flow of air, while the aperture of proportioning valve is adjusted, with regulating gas and sky Gas ratio, when temperature reaches setting value in ladle 2, realizes automatic constant-temperature and is toasted according to curve.

The automatic control process of above-mentioned ladle baking facilities is：After air blast 9, electric pushrod 8 are all installed, debugging electricity The rotation direction of machine；Switch by " one-key start ", first air blast 9 starts to start, and at this moment air door valve degree reaches maximum, first purges About 2～3 minutes, after purging is finished, air door reached minimum ignition position automatically, starts automatic ignition；At this moment igniter starts work Make, gas emergency cut-off valve is opened, magnetic valve 15 opens an ignition angle and starts igniting, and during igniting, ignition controller is given Signal, ignition transformer obtains electric, and the ignitor inside burner 13 draws electric spark, and combustion gas is entered after burner 13 by electric fire Flower ignites.About in 3 seconds, the monitoring of the flame of burner 13 detects flame, and detection signal is sent to into ignition controller, Ignition controller is obtained after signal, provides the run signal lamp of yellow, points out to light a fire successfully.If lighted a fire successfully, temperature controller is opened Beginning detection temperature, if temperature is not reaching to the temperature value for setting, temperature controller will send a temperature current signal to PLC, Then the electric butterfly valve 11 of air pipe line 10 is slowly opened greatly, increases combustion air volume, while the proportioning valve of fuel gas pipeline 14 is by leading Pressure pipe detects blast and becomes big, and the aperture of proportioning valve also increases, and so as to the flow of natural gas is also scaled up, realizes burning Conversion of the device 13 from small fire state to big fire state.When detecting that temperature reaches setting value in ladle 2, then carry out automatic constant-temperature With toast according to curve.If igniting is without success（The duration of ignition is set as 8～10 seconds）, gas emergency cut-off valve will will fire Gas automatically cuts off, at the same air blast 9 to carry out post-purge about 2～3 minutes out of service again.Occur unexpected putting out in equipment running process Fire or power down, equipment can automatically cut off combustion gas, after Chu Liwan equipment faults, then restart to light a fire and toast.

In view of fortuitous event, manual control button is additionally provided with electric cabinet 16, air blast 9 can be activated individually, Gas pipeline 14 installs a bypass additional, and in the case of fire defector and all of control system failure, this equipment can be manual Operation.Manually control and automatic control system are completed by same electric cabinet 16.

In view of the life-span of the security and equipment for using, (exceed using above-mentioned roasting plant or for a long time first 30 days) disable after when lighting a fire again, waste gas in pipe need to be displaced, diffused by diffusing pipeline, prevent that detonation occurs during igniting, need When taking long-term (more than 30 days) truce, the manual secondary valve of air inlet need to be closed.When valve member is keeped in repair, forbid to be struck with spanner Beat, in order to avoid in the case of the mixed gas in spark initiation pipe, conditions permit, it is proposed that using copper spanner.It is long-term in apparatus for baking When idle, it is necessary to put down clad 3 or supported with a support, it is impossible to allow the long-term stress of electric pushrod 8, otherwise will make Arrestment mechanism failure, will cause the accident when using next time because of failure.

Above example is only unrestricted to illustrate the technical solution of the utility model, although with reference to preferred embodiment pair The utility model has been described in detail, it will be appreciated by those skilled in the art that can enter to the technical solution of the utility model Row modification or equivalent, without deviating from the objective and scope of the technical program, it all should cover in power of the present utility model In sharp claimed range.

Claims (10)

1. a kind of ladle baking facilities, it is characterised in that include：Support, the support is provided with cantilever beam, the cantilever beam Lower section is provided with electric pushrod, promotes the cantilever beam to move up and down along the support by the electric pushrod, the cantilever beam Side be fixed with clad, ladle is correspondingly provided with below the clad, the clad is placed on the top open part of the ladle, The side of the support is provided with air blast, and the air blast is connected to burner by air pipe line, and the burner is arranged On the clad, the burner is also associated with fuel gas pipeline, and combustion gas is provided for the burner by the fuel gas pipeline, The burner is right against the ladle, combustion flame can be sprayed in the bottom of the ladle, to toast the ladle.

2. ladle baking facilities according to claim 1, it is characterised in that：The bottom of the support is provided with wheel, is used for For support movement.

3. ladle baking facilities according to claim 1, it is characterised in that：The support is provided with vertical guide rail, described Cantilever beam is respectively provided on two sides with guide wheel, and when the electric pushrod promotes the cantilever beam, the guide wheel is along the guide rail Lower movement.

4. ladle baking facilities according to claim 1, it is characterised in that：Suspension hook is provided with the outside of the ladle, for Crane handling.

5. ladle baking facilities according to claim 1, it is characterised in that：The air pipe line be provided with electric butterfly valve and Hand-operated butterfly valve, for adjusting the air mass flow for being passed through the burner.

6. ladle baking facilities according to claim 1, it is characterised in that：The fuel gas pipeline is provided with proportioning valve and electricity Magnet valve, the proportioning valve is used to distribute combustion gas and air mass flow, and the magnetic valve is maintained a normally open when being powered, closed automatically during power-off Close.

7. a kind of control system of the ladle baking facilities based on described in claim 1, it is characterised in that include：Gland part And ignition section, the gland part include automatic controller, the automatic controller is connected to the electric pushrod, by institute State automatic controller and send signal, the electric pushrod drives the cantilever beam and the clad to move towards the ladle, institute The open top that clad is pressed on the ladle is stated, described ignition section includes ignition controller, and the ignition controller passes through In the ignitor of the burner internal, the ignition controller is also attached to the air blast, the air to connection The magnetic valve of the electric butterfly valve of pipeline and the fuel gas pipeline, when the ladle is toasted, the ignition controller sends signal, The ignitor draws electric spark, while the magnetic valve and the air blast are automatically opened up, combustion gas enters the burner Ignited by electric spark afterwards, spray combustion flame is to toast the ladle, and it is combustion-supporting that air enters the burner.

8. control system according to claim 7, it is characterised in that：The ignition controller and the automatic controller set It is placed in the electric cabinet of the support side, the electric cabinet is provided with button, the button is used to drive the IGNITION CONTROL Device and the automatic controller automatic or manual run.

9. control system according to claim 7, it is characterised in that：Also include blowout protection part, in the burner Be provided with flame monitor, when the flame monitor detects loss of ignition or accident extinguishing, the fuel gas pipeline it is urgent Stop valve disconnects automatically, to cut off fuel gas pipeline, stops ignition procedure.

10. control system according to claim 7, it is characterised in that：Also include temperature-controlled portion, according to what is detected in ladle Temperature, using PLC and temperature controller, controls the aperture of valve on the fuel gas pipeline and the air pipe line, with regulating gas and The flow of air, when temperature reaches setting value in the ladle, automatic constant-temperature baking.