CN104061795A - Heating-furnace internal-circulating tar burning technology - Google Patents
Heating-furnace internal-circulating tar burning technology Download PDFInfo
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- CN104061795A CN104061795A CN201410279055.0A CN201410279055A CN104061795A CN 104061795 A CN104061795 A CN 104061795A CN 201410279055 A CN201410279055 A CN 201410279055A CN 104061795 A CN104061795 A CN 104061795A
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- flue gas
- burning
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- heating
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Abstract
A heating-furnace internal-circulating tar burning technology is characterized in that at least two heating furnaces cooperate to conduct tar burning operation, wherein one heating furnace is used for conducting tar burning, and the other heating furnace is used for conducting dust removal and cooling treatment on smoke produced by tar burning. The tar burning operation can be conducted in each heating furnace circularly when a plurality of heating furnaces are adopted, the whole process of tar burning is implemented in the heating furnaces circularly, so that safety, environmental protection and energy conservation are realized.
Description
Technical field
The present invention relates to the industry fields such as oil, chemical industry, metallurgy, electric power, coal, particularly relate to a kind of technical field that need to heat damps such as natural gas, liquefied petroleum gas, oil shale retorting gas, coke-stove gas, coal gas, device in Gas.
Background technology
Oil, chemical industry, metallurgical, electric power, the industry fields such as coal need to be to natural gas, liquefied petroleum gas, oil shale retorting gas, coke-stove gas, coal gas, the damps such as device in Gas heat, wherein a kind of mode of heating is for adopting heating furnace, for example patent < < heating furnace > > 200920013101.7, the heating furnace that heating furnace > > 200820152259.8 that patent < < makes flammable coal gas obtain high temperature discloses.
In heating furnace regenerator, build the porous checker brick heat storage that refractory material is made by laying bricks or stones, the course of work comprises two processes of accumulation of heat-heating, working method is that batch (-type) hockets, and accumulation of heat phase burning coal gas heats heat storage, and damp was flowed through heat storage and was heated the period of heating.
The fuel that heating furnace is used and the medium heating, mainly contain natural gas, liquefied petroleum gas, oil shale retorting gas, coke-stove gas, coal gas, device in Gas etc., these gases contain the hydrocarbons such as higher methane, ethene, in heat-accumulation combustion and heating process, exist and analyse carbon phenomenon, some gas also can be separated out tar.Along with heating furnace work time lengthening, the carbon dust of separating out, tar are bonded in checker brick heat storage checkerwork cell surface in a large number, seriously stop up checker brick heat storage, cause the heating furnace cannot normal operating.
For recovery heating stove normal function, need to burn operation.Burning is to point in heating furnace to pass into air, is deposited on carbon distribution, the tar on heat storage surface, thereby makes heat storage recover the process of normal function with combustion method burn off.
Conventional scorching process is directly ventilating technology, in heating furnace bottom, arrange and burn mouth, heating furnace top arranges exhaust opening, while burning operation, open that burn mouthful bottom and top exhaust opening, from burning stomion fire, air under the effect of heating furnace stack effect from burning in mouthful suction stove, carbon distribution, tar run under the fed oxygen from air of suction and ignition action combustion reaction occur, solid deposited thing becomes the flue gas of gaseous state, and rises along regenerator, finally from exhaust opening, gets rid of and enters atmosphere.The shortcoming of in line scorching process is to burn flue gas to carry a large amount of dust and be directly discharged in atmosphere, causes air pollution.In addition, in flue gas, amount of heat can not be recycled.
The improved process of conventional scorching process is in line+external purification technique,, on directly ventilating technology basis, increases flue gas dust collecting system, comprises deduster, air-introduced machine, mixed valve and the pipeline valve etc. converted of air.Owing to burning flue-gas temperature, can reach more than 800 ℃, deduster, air-introduced machine be except adopting high temperature resistant type, also needs to arrange that air is mixed converts valve and reduce flue-gas temperature.Owing to containing a large amount of unburned carbon powder in flue gas and dedusting ash, in dedusting and deashing process, all there is the risk of carbon dust burning, operational danger is high.
In view of this, the design people is based on prior art, experience and professional knowledge, and actively research and innovation in addition, to founding a kind of novel scorching process, can improve the general defect of existing routine techniques on the market, makes it have more practicality.
Summary of the invention
Main purpose of the present invention is, overcomes the defect of prior art, and a kind of novel scorching process is provided, and makes its operation of burning that is more suitable for heating furnace, can reclaim the heat that burns generation, significantly eliminates again exhaust emission.
Object of the present invention and solution technical problem underlying realize by the following technical solutions.
Cyclic char technique in the heating furnace proposing according to the present invention, one assembly is equipped with two heating furnaces, normal mode of operation is burning one heating, while burning, two stop normal operating, two stoves are all for burning operation, and a heating furnace burns, and is referred to as to burn stove while burning, another heating furnace burns produced flue gas for the treatment of burning stove, is referred to as flue gas and processes stove while burning, every heating furnace is all provided with and burns mouthful, burns flue gas mouth, smoke valve, burns flue gas arm, system is provided with burns flue gas house steward, burn flue gas arm one end and connect heating furnace, flue gas house steward is burnt in other end connection, burning flue gas house steward links together all heating furnaces, make every heating furnace all can burn or burn flue gas and process, burn the middle smoke valve that is provided with of flue gas arm, while burning operation, open the mouth that burns that burns stove, burn the air supply of a little fighting, burn carbon distribution and tar ignition in stove, carbon distribution and tar burning become flue gas, and from flowing from the bottom up along burning stove heat storage, open the smoke valve that burns stove and flue gas processing stove simultaneously, flue gas is discharged from burning the flue gas mouth that burns of stove, by burning flue gas arm, smoke valve enters and burns flue gas house steward, smoke valve burns flue gas arm along what burn that flue gas house steward is transported to that flue gas processes stove, smoke valve, and enter flue gas and process in stove stove by the flue gas mouth that burns that flue gas is processed stove, the big dust particle that flue gas carries is deposited under Action of Gravity Field that flue gas is processed stove bottom and separated with flue gas, the granule dust that flue gas carries is deposited on heat storage surface under absorption affinity effect, complete gas cleaning process, simultaneously, heat storage in flue gas and stove carries out heat exchange, flue gas heat is passed to heat storage and temperature decline, finally from flue gas, process the flue of stove, chimney enters atmosphere.
Cyclic char technique in the heating furnace proposing according to the present invention, is characterized in that wherein said heating furnace is that all the people present is put in an assembly, and normal mode of operation is two burning two heating, and while burning, mode of operation is burning one heating, and another two burn operation;
Cyclic char technique in the heating furnace proposing according to the present invention, heating furnace is that an assembly is put three, and be equipped with two groups simultaneously, every group of heating furnace normal mode of operation is two burning one heating, while burning, mode of operation is burning one heating, every group of heating furnace take out one, two groups totally two burn operation; The rest may be inferred, is applicable to the operation of burning of many group heating furnaces.
Cyclic char technique in the heating furnace proposing according to the present invention, is characterized in that heating furnace, without arranging separately, burns mouthful and burns flue gas mouth, is to utilize the existing manhole of heating furnace, unload blast hole or heated medium outlet replaces.
The present invention does not have the defect of existing scorching process in use completely, and can be so that structure of the present invention is had practicality more, and has the extensive value in industry.
The advantage of cyclic char technique in the present invention:
1) safe and reliable
The high-temperature flue gas and the heat storage that burn generation carry out heat exchange, and heat is passed to heat storage and temperature reduction, have avoided high-temperature flue gas directly to enter flue and have caused tar burning breaking out of fire in flue.Whole burning process all in heating furnace sealing and circulating carry out, discharged gas fume temperature normal operating flue-gas temperature is identical, without outer row's high-temperature flue gas, avoids high-temperature flue gas discharge may cause equipment to burn out or personnel's burn.
2) environmental friendliness
The flue gas producing while burning is processed stove dust removal process through flue gas, and smoke content is identical with the dust content of normal operating, and passes through chimney high altitude discharge, the environmental pollution that the direct low-altitude discharged of flue gas of having avoided containing a large amount of dust causes.
3) save the energy
While burning, carbon distribution, tar burning are emitted amount of heat and are entered flue gas, flue gas and heat storage carry out heat exchange heat and pass to heat storage, when band regenerator temperature reaches the needed temperature of heating, flue gas is processed stove duty and is transferred heating to, heat storage heat is emitted and is passed to heated medium and recycled, and can save part heating furnace fuel.
Accompanying drawing explanation
Fig. 1 is the scorching process flow chart of one group of all the people present's heating furnace of the present invention.
Fig. 2 is the scorching process flow chart of of the present invention two groups of three heating furnaces.
1, burn mouth 2, burn flue gas mouth
3, burn flue gas arm 4, smoke valve
5, burn flue gas house steward.
The specific embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to its specific embodiment of cyclic char technique, structure, feature and effect thereof in the heating furnace proposing according to the present invention, be described in detail as follows.
Refer to Fig. 1, cyclic char technique in the heating furnace of preferred embodiment of the present invention.
Cyclic char technological process in heating furnace: one group of heating furnace configuration all the people present, while burning, mode of operation is burning one heating, another two burn operation open need to burn heating furnace bottom burn mouthful 1, the smoke valve 4 of stove and the smoke valve 4 that flue gas is processed stove are burnt in unlatching, to burning burning of stove, in mouthful 1, pass into air igniting, after lighting a fire successfully, increase air supply amount, make carbon distribution and tar burning, the flue gas that burning produces rises along burning coke oven regenerator,------------the flue gas arm 3---smoke valve 4---that burns that flue gas is processed stove burns flue gas mouth 2 and enters flue gas and process stove flue gas house steward 5 smoke valve 4 to burn flue gas arm 3 through what burn stove, to burn flue gas mouth 2, flue gas is processed stove regenerator along flue gas and is flowed from top to bottom, and process stove heat storage with flue gas and carry out heat exchange, flue gas heat passes to heat storage, temperature is progressively reduced to the exhaust temperature that heating furnace allows.Meanwhile, the big dust particle that flue gas is contained, sedimentation under Action of Gravity Field, particle dust is attracted to flue gas and processes stove heat storage surface, completes gas cleaning process.Flue gas after processing enters atmosphere from flue gas processing stove flue, chimney.A heating furnace completes and burns after operation, is replaced by another heating furnace and burns operation, until all heating furnaces all complete, burns operation.
Embodiment 1
Certain oil shale retorting gas heating engineering, adopt cyclic char technique in heating furnace of the present invention, refer to Fig. 2, be provided with two groups of heating furnaces, three heating furnaces are put in every assembly, and while burning, every group of furnace operation mode is burning one heating, every group of heating furnace take out one, two groups totally two burn operation, a heating furnace completes and burns after operation, is replaced by another heating furnace and burns operation, until all heating furnaces all complete, burns operation.。
The above, it is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, anyone familiar with this technology may utilize the technology contents of above-mentioned announcement to be changed or be modified to the equivalent embodiment of equivalent variations, every content that does not depart from technical solution of the present invention, any simple modification, equivalent variations and the modification above embodiment done according to technical spirit of the present invention, all still belong in the scope of technical solution of the present invention.
Claims (3)
1. cyclic char technique in heating furnace, one assembly is equipped with two heating furnaces, normal mode of operation is burning one heating, while burning, two heating furnaces stop normal operating, two stoves are all for burning operation, and a heating furnace burns, and is referred to as to burn stove while burning, another heating furnace burns produced flue gas for the treatment of burning stove, is referred to as flue gas and processes stove while burning, every heating furnace is all provided with and burns mouthful, burns flue gas mouth, smoke valve, burns flue gas arm, system is provided with burns flue gas house steward, burn flue gas arm one end and connect heating furnace by burning flue gas mouth, flue gas house steward is burnt in other end connection, burning flue gas house steward links together all heating furnaces, make every heating furnace all can burn or burn flue gas and process, burn the middle smoke valve that is provided with of flue gas arm, while burning operation, open the mouth that burns that burns stove, put the air supply of fighting, burn carbon distribution and tar ignition in stove, carbon distribution and tar burning become flue gas, and flow from the bottom up along burning stove heat storage, open the smoke valve that burns stove and flue gas processing stove simultaneously, flue gas is discharged from burning the flue gas mouth that burns of stove, by burning flue gas arm, smoke valve enters and burns flue gas house steward, smoke valve burns flue gas arm along what burn that flue gas house steward is transported to that flue gas processes stove, smoke valve, and enter flue gas and process in stove stove by the flue gas mouth that burns that flue gas is processed stove, the big dust particle that flue gas carries is deposited under Action of Gravity Field that flue gas is processed stove bottom and separated with flue gas, the granule dust that flue gas carries is deposited on heat storage surface under absorption affinity effect, complete gas cleaning process, simultaneously, the heat storage that flue gas and flue gas are processed in stove carries out heat exchange, flue gas heat is passed to heat storage and temperature decline, finally from flue gas, process the flue of stove, chimney enters atmosphere, a heating furnace completes and burns after operation, be replaced by another heating furnace and burn operation, until all completing, all heating furnaces burn operation.
2. cyclic char technique in heating furnace according to claim 1, is characterized in that wherein said heating furnace is that all the people present is put in an assembly, and normal mode of operation is two burning two heating, and while burning, mode of operation is burning one heating, and another two burn operation; Or three of one group of heating furnace configurations, and being equipped with two groups simultaneously, every group of heating furnace normal mode of operation is two burning one heating, and while burning, mode of operation is burning one heating, and every group of heating furnace taken out one, two groups and taken out altogether two and burn operation; The rest may be inferred, is applicable to the operation of burning of many group heating furnaces.
3. cyclic char technique in heating furnace according to claim 1, is characterized in that wherein said to burn mouthful, burn flue gas mouth be to utilize the existing manhole of heating furnace, unload that blast hole or heated medium outlet replace and without independent setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410279055.0A CN104061795A (en) | 2014-06-22 | 2014-06-22 | Heating-furnace internal-circulating tar burning technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410279055.0A CN104061795A (en) | 2014-06-22 | 2014-06-22 | Heating-furnace internal-circulating tar burning technology |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406175A (en) * | 2014-10-25 | 2015-03-11 | 河北钢铁股份有限公司唐山分公司 | Method for on-line clearing precipitated coals blocked in honeycomb holes of heat accumulator |
| CN109470072A (en) * | 2018-10-25 | 2019-03-15 | 南京华电节能环保设备有限公司 | A kind of anticorrosion anti-coking smoke waste heat recycling device for coke oven |
-
2014
- 2014-06-22 CN CN201410279055.0A patent/CN104061795A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104406175A (en) * | 2014-10-25 | 2015-03-11 | 河北钢铁股份有限公司唐山分公司 | Method for on-line clearing precipitated coals blocked in honeycomb holes of heat accumulator |
| CN109470072A (en) * | 2018-10-25 | 2019-03-15 | 南京华电节能环保设备有限公司 | A kind of anticorrosion anti-coking smoke waste heat recycling device for coke oven |
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Application publication date: 20140924 |