CN206425543U - A kind of big bag roaster - Google Patents
A kind of big bag roaster Download PDFInfo
- Publication number
- CN206425543U CN206425543U CN201720116965.6U CN201720116965U CN206425543U CN 206425543 U CN206425543 U CN 206425543U CN 201720116965 U CN201720116965 U CN 201720116965U CN 206425543 U CN206425543 U CN 206425543U
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- China
- Prior art keywords
- clad
- heat exchanger
- air
- big bag
- burner
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Abstract
The utility model discloses a kind of big bag roaster, including large arm, clad, gaspipe line and combustion air pipeline, it is characterized in：Also include heat exchanger, be arranged on the top of clad, combustion air pipeline is connected with heat exchanger；The outer of clad is evenly distributed with steam vent, and steam vent is connected by the air inlet of blast pipe and air-introduced machine and heat exchanger；The cartridge of burner is arranged on the center of air intake duct, and the mouth of pipe of cartridge and the mouth of pipe of air intake duct are provided with a swirler, and the direction of rotation of two swirlers is not in the same direction；Clad includes steel plate clad body, heat resistance concrete layer and aluminosilicate refractory fiber cotton layer are disposed with steel plate clad body from the bottom to top, herringbone lacing wire is additionally provided with heat resistance concrete layer, heat resistance concrete thickness degree is 130mm, and aluminosilicate refractory fiber cotton layer thickness is 20mm.Also include control device, electrically connected respectively with large arm, clad, gaspipe line, combustion air pipeline and heat exchanger.
Description
Technical field
The utility model is related to metallurgical casting technical field, specially a kind of big bag roaster.
Background technology
Steel (iron) bag roaster is mainly used in new block, cold repair, drying, turnover and the various steel (iron) being rapidly heated online
The baking of water pot.The performance of apparatus for baking all has a great impact to tapping temperature, steelmaking operations rate, furnace life etc..Ladle baking
Between steel-making and the main production process of continuous casting two, the height of baking temperature of steel ladle has important work to coordinating overall production
With the meaning to continuous casting is more great.
The heat-energy losses of molten steel are very big in molten steel operating from steel making working procedure to continuous casting working procedure, and wherein ladle accumulation of heat is lost about
Half of molten steel heat-energy losses or so is accounted for, if not using ladle baking method, the heat-energy losses of molten steel are compensated, it is ensured that molten steel is poured
Temperature during note, certainly will will improve the tapping temperature of molten steel, but this can bring a series of problem.First have to improve tapping temperature
Degree increases raw materials consumption it is necessary to increase the duration of heat, improves ton steel cost；Secondly, accelerate lining wear speed, reduction
Furnace life.Therefore, the baking temperature of ladle is improved, to reduction tapping temperature, the life-span of body of heater is improved, increases output of steel, reduction
Raw materials consumption, reduces ton steel cost, it is ensured that the direct motion of continuous casting all has important.
The common fault of conventional big bag roaster is often that flame is short, poor rigidity, it is impossible to which through bag bottom, roasting lid does not bake bag, flame
It is excessive, the energy is not only wasted, environment is also polluted, while causing clad premature aging.
In addition, conventional big bag roaster control system does not have air-fuel ratio automatic control system, valve opening is adjusted manually, very
Difficulty reaches optimal air-fuel ratio, there is the larger energy saving space.
Utility model content
The purpose of this utility model is a kind of big bag roaster of offer, and solving big bag roaster in the prior art makes
With middle ladle temperature-difference it is big the problem of, flame is excessive cause energy waste the problem of, control system ability of regulation and control difference cause sky
Combustion than it is not good the problem of and clad design and unreasonable cause the problem of service life is too short.
To achieve the above object, the utility model provides following technical scheme：A kind of big bag roaster, including large arm, bag
Lid, gaspipe line and combustion air pipeline, clad are fixedly connected with large arm, and burner, burner and gas pipe are provided with clad
Road and the connection of combustion air pipeline, are characterized in：Also include heat exchanger, be arranged on the top of clad, combustion air pipeline is with changing
Hot device connection；The outer of clad is evenly distributed with steam vent, and steam vent is connected by the air inlet of blast pipe and heat exchanger, exhaust
Air-introduced machine is additionally provided between pipe and air inlet；The cartridge of burner is arranged on the center of air intake duct, cartridge
The mouth of pipe of the mouth of pipe and air intake duct is provided with a swirler, and the direction of rotation of two swirlers is not in the same direction；
Clad includes being disposed with heat resistance concrete layer and alumina silicate in steel plate clad body, steel plate clad body from the bottom to top
Herringbone lacing wire is additionally provided with refractory fiber cotton layer, heat resistance concrete layer, heat resistance concrete thickness degree is 130mm, alumina silicate
Refractory fibre cotton layer thickness is 20mm.
Also include control device, electrically connected respectively with large arm, clad, gaspipe line, combustion air pipeline and heat exchanger.
It is preferred that, control device includes PLC and the induction installation electrically connected with PLC.
It is preferred that, induction installation includes flame scanner, is arranged on burner, is electrically connected with PLC；
Thermocouple, is arranged on clad, is electrically connected with PLC；
Pressure transmitter, is arranged on gaspipe line, is electrically connected with PLC；
Flow transmitter, is set on gaspipe line and combustion air pipeline, and electrically connected with PLC respectively.
It is preferred that, large arm includes baking large arm and square beam, and both are fixedly connected in angle of 45 degrees.
It is preferred that, steam vent is specially eight, exhaust bore dia 50mm.
It is preferred that, in addition to high-voltage spark, it is arranged on burner, and electrically connected with control device.
It is preferred that, in addition to coaming plate and hot-air damper, it is arranged on clad.
Compared with prior art, the beneficial effects of the utility model are as follows：
Improved by clad structure, heat exchanger install additional and the monitoring of control device regulates and controls so that flame is by middle straight
Bag bottom is sent, high-temperature flue gas makes containment wall fully absorb sensible heat along containment wall surrounding formation circulation, so that ladle temperature-difference is small
In 80 DEG C, and it is evenly distributed.
Further, since clad structure design causes clad bead without the excessive phenomenon of flame, amount of residual heat is by designing tubular type
Heat exchanger reclaims complete, and then makes exhaust gas temperature≤160 DEG C, substantially reduce the number NOx and other pernicious gases discharge capacity；And due to
Amount of residual heat is largely reclaimed so that bag is greatly reduced along temperature, extends the service life of clad.
Monitor by control device so that air-fuel ratio reaches most preferably, effectively increases energy utilization rate, and then reach
The effect of energy-conservation；In addition, can realize long-range igniting by control device, security performance is greatly improved.
Brief description of the drawings
Fig. 1 is the utility model structural representation；
Fig. 2 is clad structural representation in the utility model；
Fig. 3 is clad cross-sectional view in the utility model；
Fig. 4 is the utility model nozzle structure schematic diagram；
Fig. 5 is the utility model burner cross section structure schematic diagram；
Fig. 6 is control structure schematic diagram in the utility model.
In figure：11st, large arm is toasted；12nd, square beam；2nd, clad；21st, steel plate clad body；22nd, heat resistance concrete layer；23rd, silicic acid
Aluminium refractory fiber cotton layer；24th, herringbone lacing wire；25th, steam vent；26th, blast pipe；27th, coaming plate；28th, hot-air damper；31st, coal gas
Pipeline；32nd, combustion air pipeline；4th, heat exchanger；41st, air inlet；42nd, air outlet；43rd, air-introduced machine；5th, burner；51st, cartridge；
52nd, air intake duct；53rd, swirler；61st, PLC；62nd, flame scanner；63rd, thermocouple；64th, flow transmitter,
65th, pressure transmitter.
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 utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Refer to Fig. 1-6, a kind of big bag roaster, including large arm, clad 2, gaspipe line 31 and combustion air pipeline
32, clad 2 is fixedly connected with large arm, and burner 5 is provided with clad 2, and burner 5 connects with gaspipe line 31 and combustion air pipeline 32
Connect, clad 2 includes being disposed with heat resistance concrete layer 22 and silicic acid in steel plate clad body 21, steel plate clad body 21 from the bottom to top
Herringbone lacing wire 24 is additionally provided with aluminium refractory fiber cotton layer 23, heat resistance concrete layer 22, heat resistance concrete 22 thickness of layer are
130mm, aluminosilicate refractory fiber cotton 23 thickness of layer are 20mm, by this design structure, the fire resistance of clad 2 can be made higher,
And then improve its service life；It is evenly distributed with the outer of clad 2 in multiple steam vents 25, the present embodiment and is set to eight,
The top of clad 2 is provided with heat exchanger 4, and steam vent 25 is connected by the air inlet 41 of blast pipe 26 and air-introduced machine 43 and heat exchanger 4
Connect, combustion air pipeline 32 is connected with heat exchanger 4, can make to produce negative pressure in big bag by above-mentioned setting, after burning in big bag
Flue gas enter exchanging air through blast pipe 26 by steam vent 25, waste heat recovery can be carried out.
Burner 5 is composite heat exchange type burner 5, and the gas pipe of burner 5 is arranged on the center of air intake duct 52, and coal
The mouth of pipe of tracheae and the mouth of pipe of air intake duct 52 are provided with a swirler 53, and the direction of rotation of two swirlers 53
It is not in the same direction；Coal gas is fed by swirler 53 in central tube, and now coal gas rotates to a direction；Combustion-supporting sky after heat exchange
Gas is rotated by another swirler 53 to another direction, the combustion chamber mixed combustion inside burner 5, flame do not put out a fire,
Do not take off fire, flame good rigidity, and through bag bottom.Such a compound recuperative burner 5 is by 4 groups of heat exchanging body and metal recuperator
Into with cellular structure, and using the complex heat transfer pattern of air heat-exchange and coal gas septate heat transfer, can effectively reclaiming cigarette
Gas waste heat, the effect of double heat exchange had both been reached using the device, and the insurmountable safety problem of traditional heat exchange mode is solved again.
The induction installation induction installation that control device includes PLC 61 and electrically connected with PLC 61 includes
Flame scanner 62, thermocouple 63, pressure transmitter 65 and flow transmitter 64, flame scanner 62 are arranged on burner 5,
Flame is monitored, during fray-out of flame, all valves are closed by PLC 61；Thermocouple 63, is arranged on clad 2, by it
Big bag heating curve is monitored, flame temperature is controlled in real time；Pressure transmitter 65, is arranged on gaspipe line 31, is carried out by it
Coal gas pressure protection；Flow transmitter 64, including gas flow transmitter 64 and combustion-supporting air flow transmitter 64, set respectively
Put on gaspipe line 31 and combustion air pipeline 32, by each group Monitoring Data, by PLC 61 to gas flow with
And combustion air flow is adjusted, so as to reach adjusting air-fuel ratio.
In the utility model, coaming plate 27 and hot-air damper 28 are additionally provided with clad 2, coaming plate 27 can increase the steady of clad 2
It is qualitative, and then make it more firm, increase the service life of clad 2；Hot-air damper 28 further can prevent flame excessive, protect
Electric appliance component outside shield.
Utility model operation logic：
In use, realizing remote spots burner 5 by high-voltage spark, the lid of clad 2 is placed on ladle, changed by compound
The design of hot type burner 5, can make flame by middle direct sending bag bottom；Steam vent 25 on clad 2 passes through blast pipe 26 and air inducing
Machine 43 is connected with the air inlet 41 of heat exchanger 4, high-temperature flue gas in the interior formation negative pressure of ladle, ladle is formed circulation along containment wall surrounding
Discharged by steam vent 25, then by heat exchanger 4 by waste heat recovery；Combustion air pipeline 32 through heat exchanger 4 and with heat exchanger 4
Carry out heat exchange so that combustion air is sent to port after being sufficiently heated, and makes gas-fired more abundant.
By above-mentioned technical proposal, make the ladle temperature-difference after baking small；The bead of clad 2 is without the excessive phenomenon of flame；It is residual
Waste heat amount is largely reclaimed, and then extends the service life of clad 2, and makes to be less than by the exhaust gas temperature of air outlet 42 of heat exchanger 4
160 DEG C, reduce NOx and other pernicious gases discharge capacity.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out in the case where not departing from principle of the present utility model and spirit a variety of changes, repaiies
Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (7)
1. a kind of big bag roaster, including large arm, clad (2), gaspipe line (31) and combustion air pipeline (32), clad
(2) it is fixedly connected with large arm, is provided with burner (5) on the clad (2), the burner (5) and gaspipe line (31) and combustion-supporting
Air pipe line (32) is connected, it is characterised in that：Also include heat exchanger (4), be arranged on the top of the clad (2), it is described combustion-supporting
Air pipe line (32) is connected with the heat exchanger (4)；The outer of the clad (2) is evenly distributed with steam vent (25), the row
Stomata (25) is connected by blast pipe (26) with the air inlet (41) of the heat exchanger (4), the blast pipe (26) with it is described enter
Air-introduced machine (43) is additionally provided between air port (41)；The cartridge (51) of the burner (5) is arranged on air intake duct (52)
Center, the mouth of pipe of cartridge (51) and the mouth of pipe of air intake duct (52) are provided with a swirler (53), and two
The direction of rotation of individual swirler (53) is not in the same direction；
The clad (2) includes steel plate clad body (21), is disposed with from the bottom to top in the steel plate clad body (21) heat-resisting
Herringbone lacing wire is additionally provided with concrete layer (22) and aluminosilicate refractory fiber cotton layer (23), the heat resistance concrete layer (22)
(24), described heat resistance concrete layer (22) thickness is 130mm, and described aluminosilicate refractory fiber cotton layer (23) thickness is 20mm；
Also include control device, respectively with large arm, clad (2), gaspipe line (31), combustion air pipeline (32) and heat exchanger
(4) electrically connect.
2. a kind of big bag roaster according to claim 1, it is characterised in that：The control device includes PLC
(61) induction installation and with the PLC (61) electrically connected.
3. a kind of big bag roaster according to claim 2, it is characterised in that：The induction installation includes flame scanner
(62), it is arranged on the burner (5), is electrically connected with the PLC (61)；
Thermocouple (63), is arranged on the clad (2), is electrically connected with the PLC (61)；
Pressure transmitter (65), is arranged on the gaspipe line (31), is electrically connected with the PLC (61)；
Flow transmitter (64), is set on the gaspipe line (31) and the combustion air pipeline (32) respectively, and with institute
State PLC (61) electrical connection.
4. a kind of big bag roaster according to claim 1, it is characterised in that：The large arm include baking large arm (11) with
And square beam (12), both are fixedly connected in angle of 45 degrees.
5. a kind of big bag roaster according to claim 1, it is characterised in that：The steam vent (25) is specially eight,
Steam vent (25) the diameter 50mm.
6. a kind of big bag roaster according to claim 1, it is characterised in that：Also include high-voltage spark, be arranged on institute
State on burner (5), and electrically connected with the control device.
7. a kind of big bag roaster according to claim 1, it is characterised in that：Also include coaming plate (27) and hot-air damper
(28), it is arranged on the clad (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720116965.6U CN206425543U (en) | 2017-02-08 | 2017-02-08 | A kind of big bag roaster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720116965.6U CN206425543U (en) | 2017-02-08 | 2017-02-08 | A kind of big bag roaster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206425543U true CN206425543U (en) | 2017-08-22 |
Family
ID=59591542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720116965.6U Expired - Fee Related CN206425543U (en) | 2017-02-08 | 2017-02-08 | A kind of big bag roaster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206425543U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112077294A (en) * | 2020-09-28 | 2020-12-15 | 江苏联峰实业有限公司 | Lotus flower type ladle long nozzle oxygen burning device |
-
2017
- 2017-02-08 CN CN201720116965.6U patent/CN206425543U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112077294A (en) * | 2020-09-28 | 2020-12-15 | 江苏联峰实业有限公司 | Lotus flower type ladle long nozzle oxygen burning device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170822 Termination date: 20180208 |