CN204084339U - A kind of heat-accumulating burner that can realize coal gas and burn completely - Google Patents
A kind of heat-accumulating burner that can realize coal gas and burn completely Download PDFInfo
- Publication number
- CN204084339U CN204084339U CN201420554409.3U CN201420554409U CN204084339U CN 204084339 U CN204084339 U CN 204084339U CN 201420554409 U CN201420554409 U CN 201420554409U CN 204084339 U CN204084339 U CN 204084339U
- Authority
- CN
- China
- Prior art keywords
- heat
- coal gas
- air
- accumulating burner
- gas
- 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 - Fee Related
Links
- 239000003034 coal gas Substances 0.000 title claims abstract description 108
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 134
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 67
- 239000007789 gas Substances 0.000 claims abstract description 35
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910002091 carbon monoxide Inorganic materials 0.000 claims abstract description 19
- 239000000779 smoke Substances 0.000 claims description 19
- 239000003245 coal Substances 0.000 claims description 12
- 238000012544 monitoring process Methods 0.000 claims description 10
- 238000002485 combustion reaction Methods 0.000 abstract description 38
- 238000010926 purge Methods 0.000 abstract description 30
- 238000005338 heat storage Methods 0.000 abstract description 18
- 238000010438 heat treatment Methods 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 13
- 238000009825 accumulation Methods 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 7
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 239000003546 flue gas Substances 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 9
- 239000003517 fume Substances 0.000 description 6
- 230000001172 regenerating effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 3
- 235000019504 cigarettes Nutrition 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- -1 therefore Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Air Supply (AREA)
Abstract
The heat-accumulating burner that coal gas burns completely can be realized, belong to recuperative heater equipment technical field, for the coal gas remained in heat-accumulating burner is burnt completely.Its technical scheme is: heat-accumulating burner adopts air and gas double accumulation of heat structure, nitrogen purging device is provided with in the bottom of gas three-way valve, after heat storage type combustion process terminates, nitrogen on nitrogen sparge tube road is cut valve soon and is opened, with nitrogen, coal gas remaining between gas three-way valve to coal gas heat-accumulating burner body is purged in stove, and according to remaining coal gas amount adjustment purge time, realize burning completely.In heat-accumulating process, nitrogen is cut valve soon and is closed, the normal accumulation of heat of heat-accumulating burner.The utility model can improve the thermal efficiency of heating furnace, the carbon monoxide emission that minimizing is not fired is in environment, eliminate the potential safety hazard in heat storage type combustion, and alleviate carbon monoxide in combustion process and be directly discharged into the environmental pollution caused in air, there is significant economic benefit and social benefit.
Description
Technical field
The utility model relates to a kind of air and coal gas heat-accumulating burner of recuperative heater, belongs to recuperative heater equipment technical field.
Background technology
Regenerative combustion technology is a kind of efficient burning technology grown up from eighties of last century the nineties, this technology is using ceramic honeycomb body or ceramic bead as carrier regenerator, first high-temperature flue gas in heating furnace extracted out and transfer heat to heat storage, the temperature of heat storage is made to be increased to more than 1000 DEG C, secondly state switching is carried out by reversal valve, cold air needed for burning or cooled coal gas are delivered in heat-accumulating burner, and carry out heat exchange again with red-hot heat storage, make more than the temperature increase to 1000 DEG C of cold air or cooled coal gas, and enter hearth combustion, direct heat transfer mode due to what adopt between flue gas and air or coal gas, thermal resistance is little, therefore the thermal efficiency of heat storage type combustion is very high, can waste heat to greatest extent in recovered flue gas, energy-saving effect is remarkable, therefore this technology is just promoted the use of rapidly after occurring, the heater for rolling steel of the current domestic overwhelming majority all have employed regenerative combustion technology.
A distinguishing feature of heat storage type combustion is hocket in same or same group burner accumulation of heat and heat release, by the three-way diverter valve arranged on burner pipeline to control the process of accumulation of heat and heat release, usual triple valve is divided into the intake channel of air or coal gas and the passing away of flue gas, and from triple valve to heat storage and the common-use tunnel of burner hearth, the state of heat storage type combustion is: the valve plate of triple valve air or coal gas side is opened, the threeway valve plate of fume side is closed, air or coal gas enter shared pathway by triple valve, and enter in heat-accumulating burner, hearth combustion is entered after heat exchange.The state of accumulation of heat is: the valve plate of triple valve fume side is opened, and air side or coal gas side valve plate are closed, and high-temperature flue gas enters in heat-accumulating burner in stove, enters common conduit after heat exchange, and is discharged by triple valve.
After the combustion process of heat-accumulating burner terminates, along with the closedown of triple valve coal gas side valve plate, coal gas can not enter in burner hearth from triple valve again, but be originally trapped in common conduit and coal gas in burner can opening along with fume side valve plate, can be pumped in flue, and be discharged in air, this mode causes following consequence:
1, from the flue gas that heat-accumulating burner is discharged, the fuel such as imperfect combustion carbon monoxide, are directly discharged in air, and its concentration can reach more than 2 ~ 5%, causes severe contamination to environment, leak in surrounding environment, easily cause personnel poisoning.
2, carbon monoxide is combustible, with in fume emission process, runs into Mars (producing when draught fan impeller rotates) and blast accident can occur.
3, the fuel such as carbon monoxide does not burn and is namely discharged, and causes energy waste.
4, in burning with accumulation of heat transfer process, can there is second-time burning in the coal gas remained in heat-accumulating burner, shortens the life-span of honeycomb ceramics.
Utility model content
To be solved in the utility model is that technical problem is to provide a kind of heat-accumulating burner that can realize coal gas and burn completely, this heat-accumulating burner can retain that the regenerator temperature of original regenerative heat technology is high, energy-conservation, energy utilization rate advantages of higher, the coal gas remained between reversal valve to heat-accumulating burner is all utilized and Thorough combustion simultaneously, solve the problem of carbon monoxide excess emitters in heat storage type combustion, thus realize the qualified discharge of flue gas in heat storage type combustion, the utility model structure is simple, is applicable to the reducing energy consumption of existing recuperative heater.
The technical scheme solved the problems of the technologies described above is:
A kind of heat-accumulating burner that can realize coal gas and burn completely, it is made up of air honeycomb regenerator burner and coal gas heat-accumulating burner, air honeycomb regenerator burner comprises air triple valve, air honeycomb regenerator burner body, one end of air triple valve is connected with air duct, the other end is connected with empty smoke pipeline, air triple valve bottom is connected with air honeycomb regenerator burner body, coal gas heat-accumulating burner comprises gas three-way valve, coal gas heat-accumulating burner body, one end of gas three-way valve is connected with gas piping, the other end is connected with coal smoke pipeline, gas three-way valve bottom is connected with coal gas heat-accumulating burner body, its improvements are, the bottom of gas three-way valve is connected with nitrogen sparge tube road, nitrogen sparge tube road arranges nitrogen and cuts valve soon, nitrogen check-valves and nitrogen amount monitoring orifice plate.
The above-mentioned heat-accumulating burner that can realize coal gas and burn completely, the air honeycomb regenerator burner body of described air honeycomb regenerator burner has multiple, and the bottom of air triple valve connects air Common Ducts, and air Common Ducts are connected with multiple air honeycomb regenerator burner body.
The above-mentioned heat-accumulating burner that can realize coal gas and burn completely, the coal gas heat-accumulating burner body of described coal gas heat-accumulating burner has multiple, and the bottom of gas three-way valve connects coal gas Common Ducts, and coal gas Common Ducts are connected with multiple coal gas heat-accumulating burner body.
The above-mentioned heat-accumulating burner that can realize coal gas and burn completely, on the furnace wall of recuperative heater, multiple air honeycomb regenerator burner body and multiple coal gas heat-accumulating burner body interval are arranged.
The above-mentioned heat-accumulating burner that can realize coal gas and burn completely, on the coal smoke pipeline of coal gas, increases carbon monoxide monitoring point.
The beneficial effects of the utility model are:
The utility model fully remains the advantages such as efficiency of combustion in regenerative combustion technology is high, energy-conservation, simultaneously in the latter stage of heat-accumulation combustion, to coal gas heat-accumulating burner common conduit be remained in the coal gas in burner with inert gas (nitrogen), purge in heating furnace, realize burning completely, remaining between triple valve and burner in common conduit is no longer coal gas, but nitrogen.Nitrogen is inert gas, can not burn, and along with the end of combustion period, this part nitrogen can be discharged in air, also to environment, can not fundamentally solve the problem of carbon monoxide discharge beyond standards in heat storage type combustion process.Nitrogen purge time with remain in ducted coal gas amount and have corresponding relation, coal remaining in common conduit is large-minded, then the time purged can corresponding prolongation.Nitrogen, to the purge of remaining coal gas, is also the combustion process of heat-accumulating burner, is the process stabilization of the continuity of previous combustion period, the therefore burning of whole heat accumulating type, can not between burner and the fire box temperature of heating furnace impact.
The coal gas remained in coal gas heat-accumulating burner can realize burning completely by the utility model, therefore improves the thermal efficiency of heating furnace, has significant economic benefit.
The utility model reduces the carbon monoxide emission that do not fire in environment, eliminates the potential safety hazard in heat storage type combustion, and alleviates because carbon monoxide directly discharges caused environmental pollution, have great social benefit.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the left view of coal gas heat-accumulating burner.
In figure, mark is as follows: gas piping 1, coal smoke pipeline 2, gas three-way valve 3, nitrogen sparge tube road 4, nitrogen check-valves 5, nitrogen cut valve 6, nitrogen amount monitoring orifice plate 7, carbon monoxide monitoring point 8, air duct 9, empty smoke pipeline 10, air triple valve 11, coal gas Common Ducts 12, air Common Ducts 13, air honeycomb regenerator burner body 14, coal gas heat-accumulating burner body 15 soon.
Detailed description of the invention
The utility model is a kind of heat-accumulating burner that can realize coal gas and burn completely, its operation principle is: the phase after combustion, close the threeway valve plate of coal gas, automatically nitrogen purge valve door is opened, proceed the combustion process of heat storage type combustion, ensure the continuity of combustion process, after normal burning and purging burning terminate, start the smoke evacuation process of heat storage type combustion, burning and discharging fume and purge replacement process is all realized by automaton.
The utility model is made up of a few parts such as nitrogen purging device, air honeycomb regenerator burner, coal gas heat-accumulating burners, and nitrogen purging device is cut valve 6, carbon monoxide monitoring point 8, nitrogen amount monitoring orifice plate 7 etc. soon formed by nitrogen pipeline 4, nitrogen check-valves 5, nitrogen; Air honeycomb regenerator burner is made up of air triple valve 11, air honeycomb regenerator burner body 14, air Common Ducts 13; Coal gas heat-accumulating burner is made up of gas three-way valve 3, coal gas heat-accumulating burner body 15, coal gas Common Ducts 12.
Show in figure, air honeycomb regenerator burner body 14 in air honeycomb regenerator burner has multiple, one end of air triple valve 11 is connected with air duct 9, the other end is connected with empty smoke pipeline 10, air triple valve bottom is connected with air Common Ducts 13, and be connected with multiple air honeycomb regenerator burner body 14 by air Common Ducts 13, realize one group of air triple valve 11 and control one or several air honeycomb regenerator burner body 14.
Show in figure, coal gas heat-accumulating burner body 15 in coal gas heat-accumulating burner has multiple, one end of gas three-way valve 3 is connected with gas piping 1, the other end is connected with coal smoke pipeline 2, gas three-way valve 3 bottom is connected with coal gas Common Ducts 12, and be connected with multiple coal gas heat-accumulating burner body 15 by coal gas Common Ducts 12, realize one group of gas three-way valve 3 and control one or several coal gas heat-accumulating burner body 15.
Show in figure, on the furnace wall of recuperative heater, multiple air honeycomb regenerator burner body 14 and multiple coal gas heat-accumulating burner body 15 interval are arranged.
Show in figure, nitrogen sparge tube road 4 is connected in the bottom of gas three-way valve 3, nitrogen sparge tube road 4 is provided with nitrogen check-valves 5 and nitrogen cuts valve 6 soon, open nitrogen to cut valve 6 soon and utilize nitrogen to be all purged in heating furnace by the coal gas retained in coal gas Common Ducts 12 and coal gas heat-accumulating burner body 15, automatic combustion program can adjust nitrogen and cut valve 5 opening/closing time soon, determines according to the pressure of nitrogen and the volume of common conduit.
The course of work of the present utility model is as follows:
In the utility model, the operation principle of heat-accumulating burner is: the combustion process of whole heat-accumulating burner is divided into three processes such as burning, purging, smoke evacuation accumulation of heat.In an embodiment of the present utility model, the combustion process of heat-accumulating burner is set as 45 seconds, purge is 5 seconds, and the process of discharging fume is 50 seconds.Under heat-accumulating burner fired state, coal gas side in gas three-way valve 3 is opened, coal smoke side closure, nitrogen is cut valve 6 soon and is closed, normal temperature coal gas enters gas three-way valve 3 by gas piping 1, enters in coal gas heat-accumulating burner body 15, after completing heat exchange afterwards by coal gas Common Ducts 12, enter in heating furnace, it is 45 seconds that this process is opened to the closedown duration from coal gas valve plate.
Meanwhile, air side in heat-accumulating burner in air triple valve 11 is opened, empty cigarette side closure, normal temperature air enters air triple valve 11 by air duct 9, enter in air honeycomb regenerator burner body 14 by air Common Ducts 13 afterwards, after completing heat exchange, enter in heating furnace, with coal gas mixed combustion.In this process, being opened to the closedown duration from coal gas valve plate is 50 seconds.
After combustion period terminates, just the purge of heat storage type combustion is started, coal gas side closure in gas three-way valve 3, coal gas in gas piping 1 no longer enters heating furnace combustion, but simultaneously, nitrogen on nitrogen sparge tube road 4 is cut valve 6 soon and is opened, low-pressure nitrogen is (in the present embodiment, nitrogen pressure adopts the purging nitrogen that heating furnace is conventional, pressure is 0.5MPa) enter coal gas Common Ducts 12 from the bottom of gas three-way valve 3, and enter coal gas heat-accumulating burner body 15, the coal gas retained in coal gas Common Ducts 12 and coal gas heat-accumulating burner body 15 is all purged in heating furnace, burn away after mixing with the air in heat-accumulating burner, the duration being opened to closedown that nitrogen in nitrogen purging device cuts valve 6 is soon 5 seconds, nitrogen purge is also the combustion process of heat-accumulating burner.
In an embodiment of the present utility model, the pressure of nitrogen is 0.5MPa, and the pressure of coal gas is 0.013MPa, therefore cut after valve 6 opens soon at nitrogen, the coal gas remained in coal gas Common Ducts 12 and coal gas heat-accumulating burner body 15 can be purged in heating furnace by nitrogen completely, realizes the burning completely of coal gas.
Nitrogen purge is the coal gas amount shared with isopyknic nitrogen displacement in gas piping 12 and regenerative type gas burner 15, for ensureing the purging effect of nitrogen and the stability of burning, the nitrogen accumulated amount consumed in purge:
V
nitrogen=KV
coal gas
V
nitrogen: the nitrogen amount that purge consumes, Nm
3/ h;
K: purge complete coefficient, get 1.1 ~ 1.2
V
coal gas: share coal gas amount remaining in gas piping and burner, Nm
3/ h.
Purge time and V
coal gasdirect correlation, V
coal gaslarger, then purge time is longer for a long time, and in the present embodiment, purge time selects 5 seconds.
After purge terminates, start the smoke evacuation heat-accumulating process carrying out heat-accumulating burner, now, nitrogen is cut valve 6 soon and is closed, coal gas side in gas three-way valve 3 continues to close, and coal smoke side is opened, rely on the draft of heating furnace air-introduced machine, heating furnace burn the high-temperature flue gas that produces some enter in coal gas heat-accumulating burner body 15, after completing heat exchange, temperature enters gas three-way valve 3 at the waste gas of 150 DEG C by coal gas Common Ducts 12, enter in coal smoke pipeline 2, finally be discharged in air, due to now Common Ducts 12 remaining be nitrogen instead of coal gas, therefore, flue gas directly can be discharged.
Simultaneously, air side in air triple valve 11 is closed, empty cigarette side is opened, the heating furnace high-temperature flue gas remainder produced that burns enters in air honeycomb regenerator burner body 14, and after completing heat exchange, temperature enters air triple valve 11 at the waste gas of 150 DEG C by air Common Ducts 13, enter in sky smoke pipeline 10, finally be discharged in air, in air duct, there is no carbon monoxide, therefore, it is possible to realize qualified discharge.
In the automatic control process of heat storage type combustion, system will detect the actual use nitrogen amount of each purge, in present case, nitrogen monitoring device has selected nitrogen amount to monitor orifice plate 7, nitrogen monitoring result is compared with actual shared gas piping volume, thus the purge time of setting nitrogen.
For ensureing the final effect after heat-accumulating burner burning, the content of carbon monoxide in coal smoke pipeline 2 need be made regular check on, in combustion, open the carbon monoxide monitoring point 8 on coal smoke pipeline 2, detect the content of carbon monoxide in flue gas, the discharge capacity of final carbon monoxide must be less than below 2000PPM, must meet national relevant industrial stove discharge standard.The utility model can adjust the purge time of nitrogen purge valve 6 by automatic control program, thus ensure final purging effect, carbon monoxide emission remaining when this makes it possible to eliminate traditional heat storage type combustion, to the pollution of environment, has splendid economic and social benefit.
Claims (5)
1. the heat-accumulating burner that can realize coal gas and burn completely, it is by air honeycomb regenerator burner, coal gas heat-accumulating burner forms, air honeycomb regenerator burner comprises air triple valve (11), air honeycomb regenerator burner body (14), one end of air triple valve (11) is connected with air duct (9), the other end is connected with empty smoke pipeline (10), air triple valve (11) bottom is connected with air honeycomb regenerator burner body (14), coal gas heat-accumulating burner comprises gas three-way valve (3), coal gas heat-accumulating burner body (15), one end of gas three-way valve (3) is connected with gas piping (1), the other end is connected with coal smoke pipeline (2), gas three-way valve (3) bottom is connected with coal gas heat-accumulating burner body (15), it is characterized in that: the bottom of gas three-way valve (3) is connected with nitrogen sparge tube road (4), nitrogen sparge tube road (4) arrange nitrogen and cuts valve (6) soon, nitrogen check-valves (5) and nitrogen amount monitoring orifice plate (7).
2. the heat-accumulating burner that can realize coal gas and burn completely according to claim 1, it is characterized in that: the air honeycomb regenerator burner body (14) of described air honeycomb regenerator burner has multiple, the bottom of air triple valve (11) connects air Common Ducts (13), and air Common Ducts (13) are connected with multiple air honeycomb regenerator burner body (14).
3. the heat-accumulating burner that can realize coal gas and burn completely according to claim 2, it is characterized in that: the coal gas heat-accumulating burner body (15) of described coal gas heat-accumulating burner has multiple, the bottom of gas three-way valve (3) connects coal gas Common Ducts (12), and coal gas Common Ducts (12) are connected with multiple coal gas heat-accumulating burner body (15).
4. the heat-accumulating burner that can realize coal gas and burn completely according to claim 3, is characterized in that: on the furnace wall of recuperative heater, and multiple air honeycomb regenerator burner body (14) and multiple coal gas heat-accumulating burner body (15) interval are arranged.
5. the heat-accumulating burner that can realize coal gas and burn completely according to claim 4, is characterized in that: at the coal smoke pipeline (2) upper increase carbon monoxide monitoring point (8) of coal gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420554409.3U CN204084339U (en) | 2014-09-25 | 2014-09-25 | A kind of heat-accumulating burner that can realize coal gas and burn completely |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420554409.3U CN204084339U (en) | 2014-09-25 | 2014-09-25 | A kind of heat-accumulating burner that can realize coal gas and burn completely |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204084339U true CN204084339U (en) | 2015-01-07 |
Family
ID=52177053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420554409.3U Expired - Fee Related CN204084339U (en) | 2014-09-25 | 2014-09-25 | A kind of heat-accumulating burner that can realize coal gas and burn completely |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204084339U (en) |
Cited By (2)
| 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 |
| CN111043869A (en) * | 2019-12-23 | 2020-04-21 | 江苏省沙钢钢铁研究院有限公司 | Heating furnace heat exchange and heat storage combined heat recovery system and operation method thereof |
-
2014
- 2014-09-25 CN CN201420554409.3U patent/CN204084339U/en not_active Expired - Fee Related
Cited By (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 |
| CN111043869A (en) * | 2019-12-23 | 2020-04-21 | 江苏省沙钢钢铁研究院有限公司 | Heating furnace heat exchange and heat storage combined heat recovery system and operation method thereof |
| CN111043869B (en) * | 2019-12-23 | 2021-06-22 | 江苏省沙钢钢铁研究院有限公司 | Heating furnace heat exchange and heat storage combined heat recovery system and operation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104791777B (en) | One kind reduces NO using flue gas self-loopaXCombustion method | |
| CN201083461Y (en) | Heat accumulation type bar plate heating stove | |
| CN204756909U (en) | Stationary flame's regenerative furnace combustion system | |
| CN201778080U (en) | Heat accumulating type soaking pit furnace | |
| CN104154763B (en) | A kind of smelting furnace high-temperature flue gas exhaust heat recovering method | |
| CN203758257U (en) | Under-machine type heat exchanger for double-preheating sintering ignition furnace | |
| CN207793163U (en) | A kind of self-loopa tunnel type carbonizing kiln | |
| CN204084339U (en) | A kind of heat-accumulating burner that can realize coal gas and burn completely | |
| CN202835358U (en) | Novel regenerative burner | |
| CN206192135U (en) | Regenerative heating furnace controlling means that commutates | |
| CN201355040Y (en) | Double preheating heat accumulating type inflamer | |
| CN212806058U (en) | Preheating device of high-temperature oil-containing dust-containing combustible gas dust remover | |
| CN209042342U (en) | A kind of rich oxygen type heat accumulating burner | |
| CN101093140A (en) | Heat storage type vertical metal magnesium reducing furnace | |
| CN111442276A (en) | Low-nitrogen oxide heat accumulating type burner and control system and control method thereof | |
| CN107166974A (en) | A kind of pre-mixing type heat-accumulation burner | |
| CN201355041Y (en) | Single preheating heat accumulating type inflamer | |
| CN202193710U (en) | Control system for solving problem of black smoke during glass furnace gas reversing | |
| CN204787795U (en) | Aluminium stove device is melted in two heat accumulations | |
| CN104110970B (en) | Exhaust heat recovering method based on maximization stove | |
| CN105972569B (en) | Supplementary fired Waste Heat Boiler | |
| CN206055608U (en) | A kind of thermal storage type oxygen-enriched combustion apparatus | |
| CN104266178A (en) | Regenerative burner capable of completely burning coal gas | |
| CN206310495U (en) | The recuperative heater of novel belt control device for reversing | |
| CN205979792U (en) | Continuous heat accumulation burner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 063016 Binhe Road, Hebei, Tangshan City, No. 9 Patentee after: HBIS COMPANY LIMITED TANGSHAN BRANCH Address before: 063016 Binhe Road, Hebei, Tangshan City, No. 9 Patentee before: Tangshan Branch of Hebei Iron & Steel Co.,Ltd. |
|
| 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: 20150107 |