CN202808850U - Hot-blast stove capable of controlling temperatures - Google Patents
Hot-blast stove capable of controlling temperatures Download PDFInfo
- Publication number
- CN202808850U CN202808850U CN 201220504497 CN201220504497U CN202808850U CN 202808850 U CN202808850 U CN 202808850U CN 201220504497 CN201220504497 CN 201220504497 CN 201220504497 U CN201220504497 U CN 201220504497U CN 202808850 U CN202808850 U CN 202808850U
- Authority
- CN
- China
- Prior art keywords
- hot
- blast stove
- flue
- hotblast stove
- stove
- 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.)
- Expired - Lifetime
Links
- 239000000446 fuel Substances 0.000 claims abstract description 6
- 238000002485 combustion reaction Methods 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 9
- 230000008676 import Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 abstract description 11
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
Images
Landscapes
- Regulation And Control Of Combustion (AREA)
Abstract
The utility model relates to a hot-blast stove capable of controlling temperatures. The hot-blast stove comprises a hot-blast stove body which is provided with a cold air inlet, a burner port, a flue outlet and an air outlet. The cold air inlet is connected with a cold air unit through a cold air pipe with a valve, the burner port is connected with a combustion-supporting unit and a fuel supply unit through pipelines with valves, the flue outlet is connected with a chimney through a pipeline with a valve, the air outlet is connected with a blast furnace through a pipeline with a valve, an air outlet of the combustion-supporting unit is connected with a flue pipe through a connection pipe, and a control valve is arranged on the connection pipe. The hot-blast stove can be completed by only adding steel pipes of tens of meters and control valves on a prior common hot-blast stove, and the enterprise cost is well controlled. By means of the measure, the hot-blast stove flue temperature can be well controlled to protect devices on the lower portion of the hot-blast stove, and the hot-blast stove top temperature is guaranteed to be in a certain control-required range, accordingly, fire-proof material damages caused by temperature reduction are prevented, and the stove is guaranteed to burn normally each time.
Description
Technical field
The utility model relates to a kind of hotblast stove, relates in particular to a kind of hotblast stove that can realize temperature control.
Background technology
The metallurgy industry iron-smelting blast furnace all needs to be equipped with the most basic hotblast stove at present, and it is the normal necessary equipment of producing of blast furnace.When a certain seat blast funnace hot blast stove all still stands intact, and blast-furnace body damages to some extent through for some time rear furnace body that comes into operation, in the time can not adapting to normal production, repair in need to carrying out or during overhaul, this time generally all can surpass two days later, if there is the cause specific also can be longer, one, two month or more the time all possible.But the domestic anti-material of blast funnace hot blast stove accumulation of heat generally all is to adopt the silica brick type at present, when this anti-material need cool off after using through heating again, still must carry out Slow cooling according to anti-material characteristic, when by the time reusing, need again to carry out carrying out according to anti-material characteristic the baker work of hotblast stove, this is again a slowly operating process, and needs the certain baker cost of cost, and this also is a relatively more expensive expense.Need to from home low-temperature bake to 750 ℃, could proceed baker work with blast furnace gas.
All the time, after blast furnace production stopped, hotblast stove also can only be followed cool stove and be quit work.But after hotblast stove stops row; cool stove along with hotblast stove; the anti-material of accumulation of heat of the inside often can be improper because of the cooling timing; cause the cracking of anti-material or take off brick etc. and damage phenomenon; but if keep the temperature of hotblast stove to be controlled at suitable higher range; to protect the anti-material of hotblast stove not to be cooled and to cause damage, just need to proceed heat insulation work to hotblast stove.In the blowing out situation, hotblast stove is continued insulation the regenerator heat of hotblast stove is walked downward, cause flue temperature too high, and descend for the top temperature.If do not take measures this moment, the insulation of whole hotblast stove just can not keep.Drop to a certain degree in case work as the top temperature, in the time of need to burning stove, because flue temperature itself just raises, at this moment flue temperature will be higher.If it is improper to control, on the one hand, flue temperature is too high, certainly will cause fire grate at the bottom of the hotblast stove and pillar excess Temperature and deformed damaged also will be propped up the anti-material (the anti-material weight that a whole hotblast stove domestic demand supports can reach 850 tons to more) in the whole hotblast stove that is unable to hold out; On the other hand, Yin Wendu is inadequate at the hotblast stove top, if continue to burn stove, might carry out top combustion chamber at hotblast stove and form combustion miss and form explosion gas because not reaching the point of ignition of blast furnace gas, and this is danger close.
At home, at present adopt the Insulation cost higher during a lot of blast furnace stopping, need a whole set of baking equipment of hot blast stove, also need open the hotblast stove manhole, and increase a part of personnel and carry out unconventional control.
The utility model content
The technical problems to be solved in the utility model is: high in order to solve the Insulation cost of hotblast stove after blast furnace is stopped using, effect is dissatisfactory problem, and the utility model provides a kind of hotblast stove of temperature control of can realizing to solve the problems referred to above.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of hotblast stove of temperature control of can realizing comprises the hotblast stove main body, described hotblast stove main body has the cold wind import, burner port, flue outlet and air outlet, described cold wind import is by being with valvular cold-air duct to be connected with cooling air unit, described burner port is by being with valvular pipeline to be connected with auxiliary combustion equipment and fuel supply device, described flue outlet is connected with chimney by the flue tube with valve, described air outlet is by being with valvular pipeline to be connected with blast furnace, the air outlet of described auxiliary combustion equipment connects flue tube by pipe connecting, is provided with control valve on the described pipe connecting.
Further, specifically, described cooling air unit is the cold wind blower fan.
Further, specifically, described auxiliary combustion equipment is burner blower.
The beneficial effects of the utility model are; the utility model can be realized the hotblast stove of temperature control; only need to add tens meters steel pipe and control valve at original ordinary hot wind furnace; can finish; enterprise cost has obtained good control; adopt and both controlled the hot-blast stove flue temperature after this measure well; with protection hotblast stove lower part equipment; guaranteed that again hot blast furnace roof temperature needs scope in certain control; to prevent that drop in temperature from causing the damage of anti-material; and guarantee each normally carrying out of stove of burning, and transform simply, be convenient to practicality.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the structural representation that the utility model can be realized the optimum embodiment of hotblast stove of temperature control.
Among the figure 1, the hotblast stove main body, 2, the cold wind import, 3, burner port, 4, flue outlet, 5, air outlet, 6, cooling air unit, 7, auxiliary combustion equipment, 8, fuel supply device, 9, chimney, 10, pipe connecting.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the synoptic diagram of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
As shown in Figure 1, a kind of hotblast stove of temperature control of can realizing of the utility model comprises hotblast stove main body 1, hotblast stove main body 1 has cold wind import 2, burner port 3, flue outlet 4 and air outlet 5, cold wind import 2 is by being with valvular cold-air duct to be connected with cooling air unit 6, burner port 3 is by being with valvular pipeline to be connected with auxiliary combustion equipment 7 and fuel supply device 8, flue outlet 4 is connected with chimney 9 by the flue tube with valve, air outlet 5 is by being with valvular pipeline to be connected with blast furnace, the air outlet of auxiliary combustion equipment 7 connects flue tube by pipe connecting 10, be provided with control valve on the pipe connecting 10, cooling air unit 6 is cold wind blower fans, and auxiliary combustion equipment 7 is burner blowers.
Stop production two days later at blast furnace, hotblast stove all is in stewing stove state, the flue tube temperature of hotblast stove can rise gradually, when the flue temperature of hotblast stove is elevated to 350 ℃ even higher temperature, and hot blast furnace roof temperature has a certain amount of decline, when reaching to surpass hot blast stove design the time desired gas fume control temperature range, just must take the pushing wind manipulation method to operate, the valve of palpus open cold airduct, open the control valve of pipe connecting 10, carry out pushing wind manipulation by pipe connecting 10 to flue tube with burner blower 7, the incoherent valve of all the other of hotblast stove all is in closing condition; When flue temperature drops to lower OK range gradually, and the hotblast stove top just can be raised to comparatively high temps after by pushing wind manipulation gradually, can guarantee refractory materials in the stove not because cooling damages, also guarantee to burn the temperature that stove institute must assurance simultaneously, unnecessary gas is discharged from refluence damping down valve; After pushing wind manipulation finishes, can continue to make this hotblast stove to boil in a covered pot over a slow fire the stove state; Namely close the control valve of pipe connecting 10 and the valve of cold-air duct; When the head temperature of hotblast stove can not reach the hot blast furnace roof temperature that institute must assurance by stewing stove and pushing wind manipulation, and the flue temperature is when hanging down scope, just must carry out the burner of hotblast stove does, open flue tube, open the burning valve, the pipeline valve of opening again auxiliary combustion equipment 7 and fuel supply device 8 just can burn furnace operating by the original normal stove pattern of burning, other related valve is in closing condition, reach original normal about 1300 ℃ of producing after can making the burning of hot blast furnace roof temperature, we also will take into account flue temperature simultaneously when burning stove, prevent the too high and damage hotblast stove furnace bottom facility of bottom temperature.
Take above-mentioned foundation desirable embodiment of the present utility model as enlightenment, by above-mentioned description, the relevant staff can in the scope that does not depart from this utility model technological thought, carry out various change and modification fully.The technical scope of this utility model is not limited to the content on the specification sheets, must determine its technical scope according to the claim scope.
Claims (3)
1. the hotblast stove that can realize temperature control, comprise hotblast stove main body (1), described hotblast stove main body (1) has cold wind import (2), burner port (3), flue outlet (4) and air outlet (5), described cold wind import (2) is by being with valvular cold-air duct to be connected with cooling air unit (6), described burner port (3) is by being with valvular pipeline to be connected with auxiliary combustion equipment (7) and fuel supply device (8), described flue outlet (4) is connected with chimney (9) by the flue tube with valve, described air outlet (5) is by being with valvular pipeline to be connected with blast furnace, it is characterized in that: the air outlet of described auxiliary combustion equipment (7) connects flue tube by pipe connecting (10), and described pipe connecting is provided with control valve on (10).
2. the hotblast stove that can realize temperature control as claimed in claim 1, it is characterized in that: described cooling air unit (6) is the cold wind blower fan.
3. the hotblast stove that can realize temperature control as claimed in claim 1 or 2, it is characterized in that: described auxiliary combustion equipment (7) is burner blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220504497 CN202808850U (en) | 2012-09-28 | 2012-09-28 | Hot-blast stove capable of controlling temperatures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220504497 CN202808850U (en) | 2012-09-28 | 2012-09-28 | Hot-blast stove capable of controlling temperatures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202808850U true CN202808850U (en) | 2013-03-20 |
Family
ID=47867766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220504497 Expired - Lifetime CN202808850U (en) | 2012-09-28 | 2012-09-28 | Hot-blast stove capable of controlling temperatures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202808850U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111850211A (en) * | 2020-07-29 | 2020-10-30 | 广东韶钢松山股份有限公司 | A kind of off-line oven method of hot blast stove |
| CN111910034A (en) * | 2020-08-31 | 2020-11-10 | 大冶特殊钢有限公司 | Furnace bottom cooling system and method in heat preservation process of hot blast stove |
-
2012
- 2012-09-28 CN CN 201220504497 patent/CN202808850U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111850211A (en) * | 2020-07-29 | 2020-10-30 | 广东韶钢松山股份有限公司 | A kind of off-line oven method of hot blast stove |
| CN111910034A (en) * | 2020-08-31 | 2020-11-10 | 大冶特殊钢有限公司 | Furnace bottom cooling system and method in heat preservation process of hot blast stove |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102952913B (en) | Dual-preheating method and device for preheating blast furnace gas by using heat-storage-type preheating furnace | |
| CN202532702U (en) | Top combustion hot-blast stove capable of achieving double preheating through mix of high-temperature smoke and low-temperature smoke | |
| CN101353579B (en) | 7.63m coke oven negative pressure in-furnace furnace drying method | |
| CN101705323A (en) | Heat insulation method for top combustion type silicon brick hot-blast stove | |
| CN104232825A (en) | Thermal insulation method of silica brick hot blast stove | |
| CN206014992U (en) | A kind of cool stove of air stove, furnace drying device | |
| CN114350877B (en) | Hot-blast stove baking method | |
| CN101993967B (en) | Heat preservation method of self-preheating type hot blast stove | |
| CN208536608U (en) | A steel-making furnace lining insulation device | |
| CN104833213B (en) | Furnace baking system for sintering ignition furnace | |
| CN201277706Y (en) | Temperature keeping apparatus for heat accumulation type hot air stove | |
| CN202968587U (en) | Top combustion stove capable of effectively preventing temperature of combustor from rising excessively | |
| CN102978316B (en) | Top combustion stove capable of effectively preventing temperature of burner from excessively rising | |
| CN204630380U (en) | Sintering ignition furnace furnace system | |
| CN107289783A (en) | Heat the liquefied gas furnace drying method of oven module refractory liner castable | |
| CN206736291U (en) | Time-sharing preheating system for combustion air of hot blast stove | |
| CN204569953U (en) | A kind of blast furnace slag iron runner cover plate of resistance to material high thermal efficiency roaster | |
| CN202671563U (en) | Hot-blast stove capable of synchronously producing hot wind and steam | |
| CN206280959U (en) | A kind of heat accumulating type multitubular bundles radiant tube combustion device | |
| CN103352095B (en) | Device and method for prolonging banking time of hot blast heater | |
| CN102747176B (en) | Hot blast heater capable of producing hot air and steam simultaneously | |
| CN104019444A (en) | Self-suction environment-friendly gasification inverse combustion heating furnace | |
| CN114645106B (en) | Heat preservation and air supply system and method for hot blast stove burning | |
| CN218811857U (en) | Oven system of hydrogen-rich carbon circulation blast furnace gas heating furnace | |
| CN219913092U (en) | Direct-fired furnace equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130320 |
|
| CX01 | Expiry of patent term |