CN208382155U - A kind of low-disintegration coal oxygen-enriched low temperature dry distillation burner - Google Patents
A kind of low-disintegration coal oxygen-enriched low temperature dry distillation burner Download PDFInfo
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- CN208382155U CN208382155U CN201821041910.4U CN201821041910U CN208382155U CN 208382155 U CN208382155 U CN 208382155U CN 201821041910 U CN201821041910 U CN 201821041910U CN 208382155 U CN208382155 U CN 208382155U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
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Abstract
The utility model discloses a kind of low-disintegration coal oxygen-enriched low temperature dry distillation burner, including outer tube and inner tube；Air delivery pipe is connected on the caliber of inner tube；Inner tube is oxygen-enriched air or oxygen channel；The length of outer tube is less than the length of inner tube, and outer tube sleeve is set to inner tube periphery；Circular passage is formed between inner tube and outer tube；The gas conveying tube of connection circular passage is connected on caliber on outer tube；Outer pipe end is connect by flange with inner tube, several bearing ribs is disposed radially on the circumference of inner tube front end, bearing rib one end is welded and fixed with inner tube, and the other end is welded and fixed with outer tube wall.The burner inner tube or outer tube and inner pipe passway sectional area are designed according to the volume ratio of oxygen in combustion air: the delayed combustion of oxygen and coal gas can be achieved; ensure that fire path temperature and air flow method are reasonable; and then it can realize the normal operation of oxygen-enriched gas retort, it is ensured that uniform in quality is stablized.
Description
Technical field
The utility model belongs to technical field of burner, in particular to a kind of low-disintegration coal oxygen-enriched low temperature dry distillation burning
Device.
Background technique
The spies such as northern Shensi rich coal resources, the coal seam age is short, and degree of coalification is low, volatile matter is high, burning point is low, tar content is high
Point can obtain coal gas, tar and semicoke by low temperature distillation, be a kind of effective ways of coal sub-prime comprehensive utilization.Currently,
Coal low temperature distillation has become a big pillar industry of local economy, and only Yulin City production capacity is up to 0.3~0.4 hundred million tons/year.
Low temperature distillation mainly uses vertical internal thermal furnace, using lump coal as raw material, main technique are as follows: and lump coal is added by furnace roof,
Coal gas is mixed with air and is blasted after lighting from lower furnace, is gone in the same direction with the coal in furnace, realizes heat exchange so that in coal
Volatile matter and tar separation, realize low temperature distillation (temperature is generally at 750 DEG C or less).Since burning uses air-breathing, combustion
It burns exhaust gas to be blended in coal gas, not only increases the processing pressure of gas cleaning system, and reduce the calorific value of coal gas, cause
The big matter of gas volume is low, lacks effective utilization ways, is easy to bring environmental issue.
In recent years, from sustainable development of socio-economy overall situation, the comprehensive utilization of resources skill of coking is actively developed
Art, exploitation cleaning coal chemical industry new process form the clean coking production for being suitble to northern Shensi or even national low-disintegration coal matter characteristic as early as possible
New technology and the technical need of outfit are increasingly strong, and wherein improving quality of coal gas and high value added utilization receive extensive pass
Note.Relevant unit proposes oxygen-enriched retorting technique, i.e., substitutes the combustion air in conventional distillation process with oxygen-enriched air or pure oxygen,
Gas retort is blasted using gas oxygen-enriched burning and cooled coal gas cooperation to recycle, and is the height of coal gas to improve the gas quality of destructive distillation
Added value is utilized and is laid the foundation.Oxygen-enriched retorting technique illustrates good industrial application prospect, has entered industrialization at present
Application stage.
However, existing oxygen-enriched low temperature dry distillation is with burner, there are section temperatures to be unevenly distributed, and product stability is poor, burns
The problems such as process control difficulties are big develops a kind of novel low-disintegration coal oxygen-enriched low temperature dry distillation burner, to the oxygen-enriched low temperature of propulsion
The popularization and application of retorting technique have significant application value.
Utility model content
It is above-mentioned to solve the purpose of this utility model is to provide a kind of oxygen-enriched destructive distillation burner of low-disintegration coal
Problem.
To achieve the goals above, the technical scheme adopted by the utility model is
A kind of low-disintegration coal oxygen-enriched low temperature dry distillation burner, including outer tube and inner tube；
Air delivery pipe is connected on the caliber of inner tube；Inner tube is oxygen-enriched air or oxygen channel；
The length of outer tube is less than the length of inner tube, and outer tube sleeve is set to inner tube periphery；It is logical that annular is formed between inner tube and outer tube
Road；The gas conveying tube of connection circular passage is connected on caliber on outer tube；
Outer pipe end is connect by flange with inner tube, and several bearing ribs are disposed radially on the circumference of inner tube front end, is supported
Gusset one end is welded and fixed with inner tube, and the other end is welded and fixed with outer tube wall.
Further, it is concordant with inner tube front end to be weldingly fixed on the end on bearing rib for outer tube.
Further, the end of inner tube is connected with ball valve
Further, the end of inner tube is equipped with observation window.
Further, the observation window installs quartz glass plate assembling additional by spiral cover, is connected with ball valve.
Further, oxygen conveying pipe is connected on the caliber of inner tube.
Further, oxygen conveying pipe is connected on air delivery pipe.
Further, flowmeter, pressure gauge and block valve are added on oxygen conveying pipe.
The beneficial effects of the utility model are:
(1) burner structure of the utility model and parameter may be not only suitable for conventional internal heat type low-temperature dry distillation furnace, can also
Suitable for the oxygen-enriched gas retort under the conditions of different oxygen-enriched ratio；
(2) nozzle structure is simple, and processing and maintenance are easy；
(3) construction investment can be not only greatly reduced in the existing equipment that can not change existing internal heating low-temperature cracking enterprise, and
And it can substantially compress the construction period；
(4) the utility model is used, combustion process is stable, direct motion, and the air temperature and current in furnace is distributed more reasonable, semicoke
Stability can be significantly improved.
(5) with northern Shensi Shenmu County typical case's coal, for the destructive distillation of 100% oxygen-enriched ratio, after oxygen-enriched destructive distillation is implemented, the coal of gas retort
Significant change will occur for gas index, and oxygen-enriched destructive distillation is compared with conventional distillation process, and surplus gas amount will reduce 40%~50%, coal
Up to 42%, methane content also significantly improves hydrogen content in gas.
(6) since gas quality significantly improves, it is easier to realize the comprehensive utilization of coal gas high added value.
The utility model burner uses cannula structure, and inner tube is led to oxygen-enriched air or oxygen, led to back between outer tube and inner tube
Producer gas；Coal gas, air and oxygen enter burner by respective access port；Burner inner tube is concordant with outer tube front end, without mixed
Close guide vane, structure is simple, it is easy to process, it can be achieved that oxygen and coal gas delayed combustion.Pass through coal gas and oxygen channel and stream
The rational design of speed, it is ensured that fire path temperature and air flow method are reasonable, and then can realize the normal operation of oxygen-enriched gas retort, it is ensured that produce
Quality is uniform and stable.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of low-disintegration coal oxygen-enriched low temperature dry distillation burner of the utility model.
Fig. 2 is burner front-end architecture schematic diagram.
Wherein, 1 outer tube, 2 inner tubes, 3 oxygen conveying pipes, 4 ball valves, 5 observation windows, 6 air delivery pipes, 7 gas conveying tubes.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments.
Embodiment 1:
Refering to what is shown in Fig. 1, a kind of low-disintegration coal oxygen-enriched low temperature dry distillation burner of the utility model uses sleeve type structure, packet
Outer tube 1 and inner tube 2 are included, inner tube 2 is oxygen-enriched air or oxygen channel, and circular passage is gas passage between inner tube 2 and outer tube 1,
Several bearing ribs 21 are disposed radially on 2 front end circumference of inner tube, bearing rib one end is welded and fixed with inner tube 2,2 rear end of inner tube
Caliber on be connected with oxygen conveying pipe 3 and airflow pipe 6, be connected with ball valve 4 and observation window 5 in the rear end of inner tube 2；
The length of outer tube 1 is less than the length of inner tube 2；The front end of inner tube 2 penetrates in outer tube 1, and outer tube 1 and 21 other end of bearing rib weld
Fixed and inner tube 2 is concordant with 1 front end of outer tube, and the rear end of outer tube 1 is connect and sealed with inner tube 2 by flange 22, inner tube 2 and outer tube
The circular passage formed between 1 is connected with gas conveying tube 7.
Observation window 5 installs quartz glass plate additional using spiral cover, and ball valve 4 is mounted between observation window 5 and inner tube 2, straight in inner tube 2
When diameter is smaller, ball valve 4 can be directly installed additional in the extension of inner tube 2 and quartz glass plate installs spiral cover composition observation window 5 additional；Inner tube 2
When being relatively large in diameter, using minor diameter pipe is welded with, then installs ball valve 4 additional and quartz glass plate installs spiral cover additional and forms observation window 5.It opens
Ball valve 4 can observe burner front mixing and burning area, usually close across the observation window 5 for installing quartz glass plate additional
The cleaning of porthole glass is protected and kept to ball valve.
Embodiment 2
Its basic structure is same as Example 1, only cancels oxygen access tube 3 on the burner, it is accessed to sky in advance
Then feed channel 6 enters burner by air access tube 6.After namely air pipeline 6 and oxygen channel 3 are merged in advance,
Access the air access tube 6 on burner.Install flow, pressure gauge and block valve additional before its merging.
When the utility model is used, gas passage is passed through into gas conveying tube 7 and pipeline, regulating valve, flowmeter etc. and coal
The connection of gas blower, coal gas enter the circular passage between inner and outer tubes from gas conveying tube；Air duct is through air delivery pipe 6
And pipeline, regulating valve, flowmeter etc. are connected to air-blaster；Oxygen channel is through oxygen conveying pipe 3 and pipeline, regulating valve, stream
Meter etc. is connect with oxygen processed or oxygen supply equipment, and oxygen-enriched air or oxygen enter in inner tube 2 from oxygen conveying pipe.
Inner tube 2 or outer tube 1 and 2 channel cross-sectional area of inner tube are designed according to the volume ratio of oxygen in combustion air:
1, for producing 50000 tons to 100,000 tons of the oxygen-enriched gas retort of monomer per year
When the volume ratio of oxygen in combustion air is stepped up to 100%, between burner inner tube 2 and outer tube 1 by 20%
Gas passage sectional area and the oxygen-enriched air or the ratio between oxygen channel sectional area of inner tube 2 increase to 11.8 by 1.95, and it is total logical
Road area reduces 0%-10%.
2, by taking the oxygen-enriched gas retort being transformed by conventional gas retort as an example
When the volume ratio of oxygen in combustion air is stepped up by 20% to 100%, the oxygen-enriched air or oxygen of inner tube 2 are logical
Road reduced cross-sectional area 0-85%；Gas passage sectional area between outer tube 1 and inner tube 2 increases accordingly 0-30%；Quirk sectional area
It is corresponding to reduce 0-15%；Acute conjunctivitis structure size does not change.
Gun body length is determined according to the structure and insertion depth of gas retort.
Burner outer tube 1, inner tube 2 are process using low-alloy seamless steel pipe.
It is oxygen-enriched than adjusting that the air duct of burner is mainly used for blow-on dynamo exploder, in specific implementation can be by oxygen
Delivery pipe 3 is set up directly on the form on air delivery pipe 6.
The utility model is suitable for existing conventional internally heated coal carbonization technique (i.e. oxygen-enriched than 20% the case where) and oxygen-enriched does
Evaporate technique, transformation of the especially conventional destructive distillation to oxygen-enriched destructive distillation.Specific embodiment is as follows:
(1) except heating unit, based on existing equipment operating parameter and downstream coal gas user demand, according to the utility model knot
Structure determines that oxygen generating plant parameter and corresponding coal gas, air enter furnace parameters.It has kept constant into furnace gases total amount (volume) and has entered
Furnace amount of oxygen (volume) is constant, and air changes the volume reducer after oxygen and supplemented by coal gas equivalent (volume).
(2) according to above-mentioned requirements and the utility model proposes structure, relative dimensions are calculated, it is special to process oxygen-enriched destructive distillation
With burner, oxygen pipeline is set up, determines whether to be transformed after appraising and deciding gaspipe line ability.Since firing tunnel in coking furnace flow amplification is larger,
Gas fan ability need to be appraised and decided, Some Enterprises original installation gas fan ability has that more than needed (Some Enterprises have variable-frequency motor
Drive, flow can be increased by frequency modulation, meet firing tunnel in coking furnace traffic requirement), it may be not required to add gas fan.
(3) it installs and uses.To newly-designed stove, installed according to design requirement.Conventional gas retort is transformed, this reality
It is optional consistent with the conventional burner of gas retort with the burner size of outer tube of novel proposition, except the coal gas and oxygen pipeline of access connect
Outside mouth changes, the mounting means on stove is constant.
(4) it is oxygen-enriched than adjusting to be mainly used for blow-on dynamo exploder for the combustion air channel on burner, in specific implementation can be
Oxygen channel is accessed into burner after comburent air duct and Cheng Yizhi before into burner.To total oxygen destructive distillation, it is transferred to normal production
When, comburent air duct is closed.
Claims (8)
1. a kind of low-disintegration coal oxygen-enriched low temperature dry distillation burner, which is characterized in that including outer tube (1) and inner tube (2)；
Air delivery pipe (6) are connected on the caliber of inner tube (2)；Inner tube (2) is oxygen-enriched air or oxygen channel；
The length of outer tube (1) is less than the length of inner tube (2), and outer tube (1) is sheathed on inner tube (2) periphery；Inner tube (2) and outer tube (1)
Between form circular passage；The gas conveying tube (7) of connection circular passage is connected on caliber on outer tube (1)；
Outer tube (1) end is connect by flange (22) with inner tube (2), is disposed radially several supports on the circumference of inner tube (2) front end
Gusset (21), bearing rib one end are welded and fixed with inner tube (2), and the other end is welded and fixed with outer tube (1) inner wall.
2. a kind of low-disintegration coal oxygen-enriched low temperature dry distillation burner according to claim 1, which is characterized in that outer tube (1)
The end being weldingly fixed on bearing rib is concordant with inner tube (2) front end.
3. a kind of low-disintegration coal oxygen-enriched low temperature dry distillation burner according to claim 1, which is characterized in that inner tube (2)
End be connected with ball valve (4).
4. a kind of low-disintegration coal oxygen-enriched low temperature dry distillation burner according to claim 3, which is characterized in that inner tube (2)
End be equipped with observation window (5).
5. a kind of low-disintegration coal oxygen-enriched low temperature dry distillation burner according to claim 4, which is characterized in that the sight
It examines window (5) and quartz glass plate assembling is installed additional by spiral cover, be connected with ball valve (4).
6. a kind of low-disintegration coal oxygen-enriched low temperature dry distillation burner, feature described in any one of -5 according to claim 1
It is, oxygen conveying pipe (3) is connected on the caliber of inner tube (2).
7. a kind of low-disintegration coal oxygen-enriched low temperature dry distillation burner, feature described in any one of -5 according to claim 1
It is, oxygen conveying pipe (3) is connected on air delivery pipe (6).
8. a kind of low-disintegration coal oxygen-enriched low temperature dry distillation burner according to claim 7, which is characterized in that oxygen conveying
Flowmeter, pressure gauge and block valve are added on pipe (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821041910.4U CN208382155U (en) | 2018-07-03 | 2018-07-03 | A kind of low-disintegration coal oxygen-enriched low temperature dry distillation burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821041910.4U CN208382155U (en) | 2018-07-03 | 2018-07-03 | A kind of low-disintegration coal oxygen-enriched low temperature dry distillation burner |
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| CN208382155U true CN208382155U (en) | 2019-01-15 |
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| CN201821041910.4U Active CN208382155U (en) | 2018-07-03 | 2018-07-03 | A kind of low-disintegration coal oxygen-enriched low temperature dry distillation burner |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110295881A (en) * | 2019-08-05 | 2019-10-01 | 信达科创（唐山）石油设备有限公司 | A kind of water-gas thermometric umbilical line and preparation method thereof |
| CN114321886A (en) * | 2021-12-31 | 2022-04-12 | 西安建筑科技大学 | Oxygen-enriched combustion type hot carrier gas generating device and method arranged outside low-temperature coal carbonization furnace |
| CN114317014A (en) * | 2021-12-31 | 2022-04-12 | 西安建筑科技大学 | Partial premixing combustion device and method for oxygen-enriched combustion internal heating type coal low-temperature carbonization furnace |
-
2018
- 2018-07-03 CN CN201821041910.4U patent/CN208382155U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110295881A (en) * | 2019-08-05 | 2019-10-01 | 信达科创（唐山）石油设备有限公司 | A kind of water-gas thermometric umbilical line and preparation method thereof |
| CN110295881B (en) * | 2019-08-05 | 2024-02-20 | 信达科创（唐山）石油设备有限公司 | Water gas temperature measurement integrated tube bundle and preparation method thereof |
| CN114321886A (en) * | 2021-12-31 | 2022-04-12 | 西安建筑科技大学 | Oxygen-enriched combustion type hot carrier gas generating device and method arranged outside low-temperature coal carbonization furnace |
| CN114317014A (en) * | 2021-12-31 | 2022-04-12 | 西安建筑科技大学 | Partial premixing combustion device and method for oxygen-enriched combustion internal heating type coal low-temperature carbonization furnace |
| CN114317014B (en) * | 2021-12-31 | 2022-09-27 | 西安建筑科技大学 | Oxygen-enriched combustion internal heating type coal low-temperature carbonization furnace and partial premixed combustion method |
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