CN203700292U - Carbonaceous substance reaction system - Google Patents
Carbonaceous substance reaction system Download PDFInfo
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- CN203700292U CN203700292U CN201320754705.3U CN201320754705U CN203700292U CN 203700292 U CN203700292 U CN 203700292U CN 201320754705 U CN201320754705 U CN 201320754705U CN 203700292 U CN203700292 U CN 203700292U
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- carbonaceous material
- section
- cooling
- dry powder
- outlet
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 49
- 239000003575 carbonaceous material Substances 0.000 title claims abstract description 36
- 238000002309 gasification Methods 0.000 claims abstract description 48
- 239000000843 powder Substances 0.000 claims abstract description 16
- 239000007789 gas Substances 0.000 claims description 79
- 238000001816 cooling Methods 0.000 claims description 58
- 230000015572 biosynthetic process Effects 0.000 claims description 52
- 238000003786 synthesis reaction Methods 0.000 claims description 52
- 239000002893 slag Substances 0.000 claims description 26
- 230000005540 biological transmission Effects 0.000 claims description 18
- 238000010791 quenching Methods 0.000 claims description 17
- 239000000112 cooling gas Substances 0.000 claims description 16
- 230000000171 quenching effect Effects 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 5
- 238000000746 purification Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 238000000034 method Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 10
- 239000003818 cinder Substances 0.000 description 8
- 239000007921 spray Substances 0.000 description 5
- 239000003245 coal Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
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- Industrial Gases (AREA)
Abstract
The utility model relates to a carbonaceous substance dry powder gasification system. The system is characterized by comprising a carbonaceous substance reaction device and a gas return device, wherein the carbonaceous substance reaction device comprises a gasification reaction section, an upper gas outlet and a lower gas outlet.
Description
Affiliated technical field
The utility model relates to the hydronic large-scale carbonaceous material gasification system of a kind of partial synthesis gas, the large scale system of the powdered coal pressuring gasified production synthetic gas in particular for separate unit day output more than 2000 tons.
Background technology
The development trend of modern petrochemical enterprise is to maximize, mass-producing.It is also the direction of Clean Coal Gasification Technology development that high-pressure gasified device maximizes, but existing gasification installation all exists certain problem.
Single nozzle vapourizing furnace is because the direction that is limited in maximization that is subject to defeated coal is subject to certain restriction.
Adopt the vapourizing furnace of multiple burners of synthetic gas upflow, can further maximize, but because slag flow direction is contrary with synthetic gas flow direction, when falling into slag bath, melt cinder can produce the water vapour that a certain amount of temperature is lower, itself and slag flow direction oppositely enter burner hearth by slag notch, and this process can reduce the temperature of melt cinder.When falling when unbalanced, melt cinder easily occurs that melt cinder does not also fall into the phenomenon that slag bath just solidifies.Owing to not having enough heats to melt solid slag, Gu slag tends to the more long-pending thicker problem that finally causes slag notch to stop up, cause that device stops.
Adopt the multi nozzle of gasification furnace of synthetic gas downflow also can further maximize, but in order to make full use of furnace cavity, often burner is arranged in to upper furnace and approaches the position of furnace roof, the High Temperature Gas of reaction process and melt cinder can continuous erosion roof of the furnaces, easily cause the phenomenon of roof of the furnace overtemperature, become the hidden danger of safety in production.
Utility model content
An object of the present utility model is to provide the hydronic large-scale carbonaceous material dry powder gasification system of a kind of partial synthesis gas.
The utility model provides a kind of carbonaceous material dry powder gasification system, it is characterized in that, comprise carbonaceous material reaction unit and gas return mechanism, described carbonaceous material reaction unit comprises gasification reaction section, He Xia air outlet, upper air outlet, and described gas return mechanism is for the synthetic gas blending of air outlet outflow on the synthesis gas reaction device that lower air outlet is flowed out.
According to a specific embodiments of the utility model system, wherein carbonaceous material reaction unit also comprises bottom cooling and purifying section, for descending high-temperature crude synthesis gas cooling, that purification gasification conversion zone flows out; Bottom cooling and purifying section entrance is connected with the lower outlet of gasification reaction section, and its syngas outlet is at the sidepiece of bottom cooling and purifying section, preferably middle and upper part.
According to a specific embodiments of the utility model system, the low temperate zone water crude synthesis gas that wherein said gas return mechanism flows out syngas outlet by primary cooler and/or epimere quenching apparatus pressurizes afterwards and the up crude synthesis gas blending of reaction unit.
According to a specific embodiments of the utility model system, the part or all of crude synthesis gas wherein flowing out from cooling and purifying section syngas outlet is by pipeline gas coming through return mechanism, and the up crude synthesis gas flowing out with gasification reaction section mixes.
According to a specific embodiments of the utility model system, its middle and lower part cooling and purifying section also comprises quenching apparatus, slag bath, thick slag outlet.
According to a specific embodiments of the utility model system, wherein gas return mechanism comprises except thick slag device and pneumatic press, except the entrance of thick slag device is connected with the syngas outlet of bottom cooling section by pipeline.
According to a specific embodiments of the utility model system, wherein pneumatic press quantity is 1 to 10, preferably 2～5, and most preferably 3.
According to a specific embodiments of the utility model system, wherein carbonaceous material reaction unit also comprises cooling gas transmission section, and it is arranged on the middle and upper part of device, and entrance is connected with the upper outlet of gasification reaction section.
According to a specific embodiments of the utility model system, the upper outlet junction of wherein said cooling gas transmission section entrance and gasification reaction section arranges a preliminary heat sink, for spray the appropriate cooling material of people in up crude synthesis gas, cooling material can some or all ofly be the low temperature crude synthesis gas of gas return mechanism pressurization, cooling material can be also water smoke, thereby crude synthesis gas being cooled, makes up flying dust temperature be reduced to the softening temperature of t2(ash simultaneously) temperature loses viscosity below.
According to a specific embodiments of the utility model system, wherein carbonaceous material reaction unit also comprises top cooling and purifying section, and its entrance is connected with the upper outlet of cooling gas transmission section.
According to a specific embodiments of the utility model system, wherein said top cooling and purifying section comprises quenching apparatus, grey pond and syngas outlet; Wherein syngas outlet, in the middle and upper part of top cooling section, can be arranged 1 or multiple, preferably 1～3.
According to a specific embodiments of the utility model system, wherein circumferentially uniform 2～12 burners of gasification reaction section, preferably 4～8, burner can be arranged 1 layer or upper and lower multilayer, preferably 1～3 layer.
The utility model operating process is, comprises the following steps:
Carbonaceous material is reacted in gasification reactor apparatus with vaporized chemical, and generating main component is the crude synthesis gas of CO and H2 and the lime-ash that main component is inorganics;
Wherein part high-temperature crude synthesis gas and flying dust, melt cinder are descending, and part high-temperature crude synthesis gas gas and flying dust are up;
I: descending part high-temperature crude synthesis gas and flying dust are through cooling, after rough purification, be sent to thick skim gate and remove oarse-grained lime-ash, crude synthesis gas with water after pneumatic press boosts is by primary cooler and/or top quenching apparatus injected system, with up high-temperature crude synthesis gas blending; Descending melt cinder discharges out of the furnace after quenching;
II: rest part high-temperature crude synthesis gas and flying dust are up, becomes gas blending to cool to 600 DEG C～t2 temperature with the low temperate zone hydration of primary cooler and/or the injection of top quenching apparatus respectively and makes below flying dust lose viscosity, enter gas transmission section;
The crude synthesis gas of gas transmission section continues up through the ash disposal of again lowering the temperature of top cooling section, is met the crude synthesis gas of follow-up requirements of process.
According to a specific embodiments of the utility model process, be characterized in, comprise the following steps:
By carbonaceous material and vaporized chemical, by multiple burner jetting device gasification reaction sections, under high temperature (1200 DEG C～2000 DEG C) high pressure (0.1MPa～11MPa) environment, to generate main component be the crude synthesis gas of CO and H2 and the lime-ash that main component is inorganics in rapid reaction;
Under part high-temperature crude synthesis gas and most of lime-ash, be advanced into bottom cooling and purifying section, after cooling and purifying, crude synthesis gas is sent to cooling gas transmission section with pneumatic press after skim gate is removed oarse-grained lime-ash, and the lime-ash of process quenching is through slag notch discharger;
Most of high-temperature crude synthesis gas and high temperature flying dust up with cooling material hybrid cooling after enter cooling gas transmission section, high-temperature crude synthesis gas is tentatively cooled, flying dust temperature is reduced to below fusing point;
Crude synthesis gas after cooling and flying dust continue up, through over-quenching laggard enter top cooling and purifying section, after cooling and purifying, remove the flying dust in crude synthesis gas, comparatively clean low temperature crude synthesis gas is sent to follow-up flow process.
The utility model is owing to having adopted above technical scheme, and the technique effect of its generation is obvious:
1, the utility model has adopted the mode that crude synthesis gas is given vent to anger up and down simultaneously, has effectively avoided on the one hand the stifled slag problem of cinder notch of the up mode of giving vent to anger, and has also fundamentally solved on the other hand the top overtemperatute of the descending mode of giving vent to anger;
2, owing to having increased gas return mechanism, effectively improve thermo-efficiency, reduced plant energy consumption, reduced the consumption of water simultaneously, reduced synthetic band of gas water band ash, alleviated the pressure of follow-up flow process.
3, the utility model has adopted many burners to arrange, is conducive to sufficient reacting and carries out, and be conducive to the maximization of device;
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is a kind of process schematic diagram of the present utility model.
Fig. 2 is a kind of system schematic of the present utility model.
In figure, mark implication is as follows: 1. bottom cooling and purifying section; 11. descending quenching apparatus; 12. downtakes; 13. times syngas outlet; 14. upcasts; 15. pulp water ponds; 16. thick slag outlets; 2. gasification reaction section; 21. burners; 22. vaporizers; 23. vaporizer water wall; 3. cooling gas transmission section; 31. preliminary heat sinks; 32. pneumatic tubes; 4. top cooling and purifying section; 41. up quenching apparatus; 42. air guide baffle pipes; 43. baffle means; 44. spray equipments; 45. tripping devices; Syngas outlet on 46.; 47 grey ponds; 5. gas return phase; 51. except thick slag device; 52. pneumatic presses; 6. housing.
Embodiment
In order better this programme to be understood, be also described in detail by reference to the accompanying drawings below by concrete case study on implementation:
Embodiment 1
Consult accompanying drawing 1, the hydronic large-scale carbonaceous material dry powder gasification of a kind of partial synthesis gas, is characterized in, comprises the following steps:
To pass through burner 21 jetting device gasification reaction sections 2 containing coal dust and oxygen, under high temperature (1600 DEG C～2000 DEG C) high pressure (4.5MPa) environment, rapid reaction generation main component is the crude synthesis gas of CO and H2 and the lime-ash that main component is inorganics;
Under 25% high-temperature crude synthesis gas and most of lime-ash, be advanced into bottom cooling and purifying section 1, lime-ash through quenching exports 16 dischargers through thick slag, the crude synthesis gas with water band ash after cooling and purifying, through removing oarse-grained lime-ash except thick slag device 51, be sent to preliminary heat sink 31 by pneumatic press 52 superchargings and serve as cooling material and vaporized chemical;
After the cooling material hybrid cooling that 75% high-temperature crude synthesis gas and high temperature flying dust are up and preliminary heat sink 31 sprays into, enter cooling gas transmission section 3, high-temperature crude synthesis gas and flying dust are tentatively cooled, flying dust temperature is reduced to below fusing point;
Reacted crude synthesis gas and flying dust continue up, through over-quenching laggard enter top cooling and purifying section 4, after cooling and purifying, remove the flying dust in crude synthesis gas, comparatively clean low temperature crude synthesis gas is sent to follow-up flow process.
Embodiment 2
Consult accompanying drawing 2, the hydronic large-scale carbonaceous material dry powder gasification system of a kind of partial synthesis gas, be characterized in, comprise carbonaceous material reaction unit and gas return mechanism 5, described carbonaceous material reaction unit comprises gasification reaction section 2, He Xia air outlet, upper air outlet.
Described carbonaceous material reaction unit also comprises bottom cooling and purifying section 1, cooling gas transmission section 3, top cooling and purifying section 4, housing 6.
Described bottom cooling and purifying section 1 is arranged on the bottom of device, and entrance is connected with the lower outlet of gasification reaction section 2, comprises quenching apparatus 11, downtake 12, syngas outlet 13, upcast 14, pulp water pond 15, thick slag outlet 16.Under the partial synthesis gas generating in gasification reaction section 2 and most of lime-ash, be advanced into quenching apparatus 11 and lower the temperature, then descending along downtake 12.Most of lime-ash exports 16 dischargers from thick slag, and descending synthetic gas is carried annular space up further cooling the ash disposal of water droplet along upcast 14 and downtake 12 secretly through 16 water-baths of pulp water pond, after purifying, the crude synthesis gas of entrained drip enters gas return mechanism 5 through syngas outlet 13.
Described gasification reaction section 2 is arranged on the middle and lower part of device, circumferential uniform 8 burners 21 of gasification reaction section 2, and burner 21 is arranged 1 layer, and the lower outlet of gasification reaction section 2 connects bottom cooling and purifying section 1, and the upper outlet of gasification reaction section 2 connects cooling gas transmission section 3.
Described burner 21 is arranged and should be made to form rotary-cut effect (burner medullary ray and same circle are tangent relatively) after reactant ejiction opening.Described cooling gas transmission section 3 is arranged on the middle and upper part of device, and entrance is connected with the upper outlet of gasification reaction section; A preliminary heat sink 31 is set in junction, for spraying the appropriate cooling material of people in the crude synthesis gas to up, high-temperature crude synthesis gas and flying dust is tentatively cooled, flying dust temperature is reduced to below fusing point.After the most of high-temperature crude synthesis gas generating in gasification reaction section 2 and the cooling material hybrid cooling that high temperature flying dust is up and preliminary heat sink 31 sprays into, enter cooling gas transmission section 3.As described below, by pneumatic press 52, the crude synthesis gas of water entrainment and thin ash is delivered to preliminary heat sink 31, serve as cooling material.
Crude synthesis gas after cooling continues to be uply sent to follow-up flow process through top cooling purifying device 4.Described top cooling and purifying section 4 is arranged on the top of device, entrance is connected with the upper outlet of cooling gas transmission section, up high-temperature crude synthesis gas is successively through up quenching apparatus 41, air guide baffle pipe 42, ash pond 47, baffle means 43, spray equipment 44, tripping device 45, the object that upper syngas outlet 46 grades realize is cooling, humidification, purifying and dedusting dewater.
Described gas return mechanism 5 comprises except thick slag device 51, pneumatic press 52.The entrance of thick skim gate 51 is connected with the syngas outlet 13 of bottom cooling section 1 by pipeline.Pneumatic press 52 quantity are 3.Crude synthesis gas after bottom cooling section 1 cooling and purifying is still carried the lime-ash that some particles are larger secretly, after removing the gred except thick slag device 51, by pneumatic press 52, the crude synthesis gas of water entrainment and thin ash is delivered to preliminary heat sink 31, serve as cooling material, for the cooling crude synthesis gas that enters cooling gas transmission section.
Claims (11)
1. a carbonaceous material dry powder gasification system, it is characterized in that, comprise carbonaceous material reaction unit and gas return mechanism, described carbonaceous material reaction unit comprises gasification reaction section, He Xia air outlet, upper air outlet, and described gas return mechanism is for the synthetic gas blending of air outlet outflow on the synthesis gas reaction device that lower air outlet is flowed out.
2. according to the carbonaceous material dry powder gasification system of claim 1, it is characterized in that carbonaceous material reaction unit also comprises bottom cooling and purifying section, for descending high-temperature crude synthesis gas cooling, that purification gasification conversion zone flows out; Bottom cooling and purifying section entrance is connected with the lower outlet of gasification reaction section, and its syngas outlet is at the sidepiece of bottom cooling and purifying section.
3. according to the carbonaceous material dry powder gasification system of claim 2, it is characterized in that bottom cooling and purifying section also comprises quenching apparatus, slag bath, thick slag outlet.
4. according to the carbonaceous material dry powder gasification system of claim 1, it is characterized in that gas return mechanism comprises except thick slag device and pneumatic press, except the entrance of thick slag device is connected with the syngas outlet of bottom cooling section by pipeline.
5. according to the carbonaceous material dry powder gasification system of claim 4, it is characterized in that pneumatic press quantity is 1 to 10.
6. according to the carbonaceous material dry powder gasification system of claim 1-5 any one, it is characterized in that carbonaceous material reaction unit also comprises cooling gas transmission section, it is arranged on the middle and upper part of device, and entrance is connected with the upper outlet of gasification reaction section.
7. according to the carbonaceous material dry powder gasification system of claim 6, it is characterized in that the upper outlet junction of described cooling gas transmission section entrance and gasification reaction section arranges a preliminary heat sink.
8. according to the carbonaceous material dry powder gasification system of claim 6, wherein carbonaceous material reaction unit also comprises top cooling and purifying section, and its entrance is connected with the upper outlet of cooling gas transmission section.
9. according to the carbonaceous material dry powder gasification system of claim 8, it is characterized in that described top cooling and purifying section comprises quenching apparatus, grey pond and syngas outlet; Wherein syngas outlet is in the middle and upper part of top cooling section, and syngas outlet is arranged 1 or multiple.
10. according to the carbonaceous material dry powder gasification system of claim 6, it is characterized in that the circumferential uniform 2-12 burner of gasification reaction section, burner is arranged 1～3 layer.
11. according to the carbonaceous material dry powder gasification system of claim 10, it is characterized in that circumferentially uniform 8 of gasification reaction sections, and burner is arranged 2 layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320754705.3U CN203700292U (en) | 2013-11-25 | 2013-11-25 | Carbonaceous substance reaction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320754705.3U CN203700292U (en) | 2013-11-25 | 2013-11-25 | Carbonaceous substance reaction system |
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| Publication Number | Publication Date |
|---|---|
| CN203700292U true CN203700292U (en) | 2014-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320754705.3U Expired - Lifetime CN203700292U (en) | 2013-11-25 | 2013-11-25 | Carbonaceous substance reaction system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104650986A (en) * | 2013-11-25 | 2015-05-27 | 航天长征化学工程股份有限公司 | Carbon-containing substance reaction system and method |
| WO2015074591A1 (en) * | 2013-11-25 | 2015-05-28 | 航天长征化学工程股份有限公司 | Carbonaceous substance reaction system and method |
-
2013
- 2013-11-25 CN CN201320754705.3U patent/CN203700292U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104650986A (en) * | 2013-11-25 | 2015-05-27 | 航天长征化学工程股份有限公司 | Carbon-containing substance reaction system and method |
| WO2015074591A1 (en) * | 2013-11-25 | 2015-05-28 | 航天长征化学工程股份有限公司 | Carbonaceous substance reaction system and method |
| US9926502B2 (en) | 2013-11-25 | 2018-03-27 | Changzheng Engineering Co., Ltd. | Carbonaceous substance gasification system and method |
| CN104650986B (en) * | 2013-11-25 | 2018-08-17 | 航天长征化学工程股份有限公司 | A kind of carbonaceous material reaction system and method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140709 |
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| CX01 | Expiry of patent term |