CN204644307U - A kind of new type of airflow bed gasification furnace chilling ring - Google Patents

A kind of new type of airflow bed gasification furnace chilling ring Download PDF

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Publication number
CN204644307U
CN204644307U CN201520065868.XU CN201520065868U CN204644307U CN 204644307 U CN204644307 U CN 204644307U CN 201520065868 U CN201520065868 U CN 201520065868U CN 204644307 U CN204644307 U CN 204644307U
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ring
annular
chilling
plate
ring plate
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CN201520065868.XU
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张春飞
王晓亮
王希
李少华
吴家桦
胡春云
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DONGFANG ELECTRIC Co Ltd
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Dongfang Electric Corp
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Abstract

The utility model discloses a kind of new type of airflow bed gasification furnace chilling ring, comprise annular outer ring plate, annular inner ring plate, annular spacer ring, downtake, annular outer ring plate comprises horizontal anchor ring one and is positioned at longitudinal anchor ring one in horizontal anchor ring once face, annular inner ring plate, annular spacer ring are all fixed on the inner side in horizontal anchor ring once face, annular spacer ring is between annular inner ring plate and longitudinal anchor ring one, and downtake is installed on annular spacer ring lower end; Annular spacer ring and horizontal anchor ring one, form Quench liquid distribution chamber between longitudinal anchor ring one, Quench liquid distribution chamber is connected with Quench liquid transfer lime; The side towards the fire of annular outer ring plate, annular inner ring plate is provided with ring protection layer; The utility model can avoid high-temperature synthesis gas and slag to work the mischief to directly washing away of chilling ring side towards the fire, also greatly can reduce the working temperature of chilling ring side towards the fire, extend the work-ing life of chilling ring, also can avoid the phenomenon occurring that lower cinder notch is blocked; The utility model be easy to produce, manufacture and tooling cost all lower.

Description

A kind of new type of airflow bed gasification furnace chilling ring
Technical field
The utility model relate in coal water slurry or coal dust gasification furnace of pressurized aerated bed chilling device, particularly a kind of new type of airflow bed gasification furnace chilling ring being applied to water Quench pattern.
Background technology
The gasification technology of coal is a kind of by the clean coal technology of coal high-efficiency clean utilization, the key equipment of coal water slurry or coal dust pressurized air flow bed gasification technology is vapourizing furnace, gasification is there is anti-in coal dust or the coal water slurry vaporizer in vapourizing furnace, the generation high-temperature crude synthesis gas of about 1200 ~ 1700 DEG C and the slag of molten state enter shock chamber, realize high-temperature crude synthesis gas and be separated with the gentle slag of the cooling of slag in shock chamber.The key part of shock chamber is chilling ring; the effect of chilling ring is evenly distributed on downtake inwall by Quench liquid; form moisture film; for the slag of high-temperature synthesis gas and molten state carries out Quench; and protect downtake not burnt out by high-temperature synthesis gas and slag, directly have influence on the normal operation cycle of vapourizing furnace in shock chamber the work-ing life of chilling ring and downtake.
Existing chilling ring structure comprises outer lip ring, epipharynx ring, the import of Quench liquid, the outlet of Quench liquid, downtake, forms Quench liquid distribution chamber, form Quench liquid and export annular space between the epipharynx ring of annular and downtake between the outer lip ring of annular and epipharynx ring.Quench liquid declines along downtake internal surface after entering through Quench liquid distribution chamber by the import of Quench liquid, realizes the humidifying cooling to high-temperature synthesis gas and slag.But also there is the problems such as complex structure, work-ing life is shorter in existing chilling ring of gasifying furnace, is mainly manifested in:
(1) chilling ring of gasifying furnace of the prior art due to its side towards the fire directly and high-temperature synthesis gas and slag contacts, cause chilling ring epipharynx ring working temperature too high, long-term hot operation greatly reduces the work-ing life of chilling ring, and high-temperature synthesis gas and slag also can reduce the work-ing life of chilling ring to the direct souring of chilling ring simultaneously.
(2) because chilling ring water-in contains thin ash particle, directly wash away epipharynx ring, cause chilling ring to wash away perforation, study of water film distribution is uneven, causes downtake distortion, bulge, dross seriously, even burns, cause gasification system to be forced to stop production.
(3) chilling ring outer lip ring and epipharynx ring are solid forging, manufacture and tooling cost higher, and due to the restriction of internal diversion block, cannot realize globality during processing assembling, needs cut open into some sections, then carry out assembly welding, affect assembly precision.
Utility model content
The defect that the utility model exists for chilling ring of the prior art and deficiency, a kind of novel fluidized bed chilling ring of gasifying furnace is provided, when overcoming the work of existing chilling ring directly and high-temperature synthesis gas and slag contacts and its temperature of causing too high, connect the defect of washing away and making its service life reduction, make chilling ring side towards the fire resistance to deformation, wear-resistant, erosion resistibility improve greatly.Overcome downtake because study of water film distribution is uneven, cutout and the distortion caused, the defect of burning, also overcome the defect of chilling ring of the prior art difficulty when manufacturing assembling simultaneously.
The technical solution of the utility model is as follows:
A kind of novel fluidized bed chilling ring of gasifying furnace, it is characterized in that: comprise annular outer ring plate, annular inner ring plate, annular spacer ring, downtake, Quench liquid transfer lime, annular outer ring plate comprises horizontal anchor ring one and is positioned at longitudinal anchor ring one in horizontal anchor ring once face, the inner side in the horizontal anchor ring that annular inner ring plate, annular spacer ring are all fixed on annular outer ring plate once face, annular spacer ring is between annular inner ring plate and longitudinal anchor ring one of belt outer ring plate, and downtake is installed on annular spacer ring lower end; Form Quench liquid distribution chamber between annular spacer ring and the horizontal anchor ring one of annular outer ring plate, longitudinal anchor ring one, Quench liquid distribution chamber connects Quench liquid transfer lime; The side towards the fire of described annular outer ring plate, annular inner ring plate is provided with ring protection layer, and ring protection layer is insulating refractory.
The longitudinal cross-section of described annular outer ring plate is T-shaped.
The longitudinal cross-section of described annular spacer ring is L-type, in the lower end of annular spacer ring, edge is fixedly connected with the outer, upper end of downtake, below the horizontal anchor ring one of annular outer ring plate, the outer side of annular inner ring plate, forms Quench liquid water distribution annular space between the medial surface of annular spacer ring and downtake.
Described Quench liquid transfer lime tilts to be connected to Quench liquid distribution chamber, and angle of inclination is preferably 45 °.
The medial surface of described annular spacer ring is provided with some taper prosopyles, and the medial aperture of taper prosopyle is greater than aperture, outside, and the angle of taper of taper prosopyle is α, α is 5 ~ 10 °; Line shape β, the β at a certain angle in the medullary ray of described taper prosopyle and the center of circle of annular spacer ring are 10 ~ 30 °.
The horizontal anchor ring two that described annular inner ring plate includes longitudinal anchor ring two and is positioned at inside longitudinal anchor ring two, below the end face of longitudinal anchor ring two and the horizontal anchor ring one of annular outer ring plate, snap is affixed.
Described ring protection layer comprises the insulating fire brick protective layer of upper end and the insulating refractory tamping layer of lower end; insulating fire brick protective layer is positioned at above the horizontal anchor ring two of annular inner ring plate; held up by horizontal anchor ring two, insulating refractory tamping layer is connected to below insulating fire brick protective layer by the coated horizontal anchor ring two of the mode of building.
Described insulating fire brick protective layer material is the refractory material with erosion resistant, high temperature resistant, scour resistance, as high alumina brick, silicon carbide brick etc.; Described insulating refractory tamping layer is erosion resistant, high temperature resistant, antistripping, plastic ramming mass, is made up of in proportion refractory aggregate, refractory powder, jointing compound and admixture.
The lower end of the horizontal anchor ring two of described annular inner ring plate is connected with a large amount of slag nails, is followed closely more can closely bond insulating refractory tamping layer by slag; The material of described slag nail can be similar to the material of chilling ring or downtake, can be high temperature resistant, corrosion resistant, wear-resisting nichrome Incloy828.
Described annular outer ring plate, annular inner ring plate and annular spacer ring are formed by forging process; Annular outer ring plate and annular spacer ring between, annular the spacer ring lower end in edge and outer, downtake upper end between, be all spliced by assembly welding between annular spacer ring upper end and annular outer ring plate lower end, between annular outer ring plate and annular inner ring plate, between Quench liquid transfer lime and Quench liquid distribution chamber.
Described chilling ring is connected to vapourizing furnace bottom by bolt and gasket, brick plate.
The working process of described chilling ring is: when the high-temperature synthesis gas that vapourizing furnace vaporizer is discharged and lime-ash enter shock chamber from slag-drip opening, and annular protective layer is used for fire-resistant and isolates synthetic gas and lime-ash directly washing away chilling ring side towards the fire; After Quench liquid enters Quench liquid distribution chamber from Quench liquid transfer lime, enter water distribution annular space by the taper prosopyle on ring-type spacer ring, then flow out in annular inner ring plate lower end and along the Quench liquid water out between downtake.
The beneficial effects of the utility model are as follows:
(1) during gasifier operation, ring protection layer outside chilling ring inner ring side towards the fire can avoid high-temperature synthesis gas and slag to work the mischief to directly washing away of chilling ring side towards the fire on the one hand, ring protection layer can play the effect of flame retardant coating on the other hand, the working temperature of chilling ring side towards the fire is reduced greatly, so just extends the work-ing life of chilling ring; Ring protection layer avoids the slag quilt moment chilling at lower cinder notch place and solidifies the phenomenon causing lower cinder notch blocked simultaneously;
(2) assembly annular outer ring plate, annular inner ring plate and the annular spacer ring of chilling ring are formed by forging process, chilling ring is assembled by welding by annular outer ring plate, annular inner ring plate, annular spacer ring, downtake, Quench liquid transfer lime, the material use efficiency of the chilling ring of this form is high, reduce manufacture chilling ring technical requirements, decrease spare part expense; Therefore, manufacture and the tooling cost of chilling ring is greatly reduced;
(3) prosopyle on spacer ring is pre-small post-large tapered hole and prosopyle medullary ray becomes 20 ~ 30 ° of angles with spacer ring medullary ray, make a Quench liquid not point and boring a hole on lumped scour annular inner ring plate, and make the current in annular inner ring form circulation, under making moisture film along downtake circulation, avoid the phenomenon that downtake burns because of moisture film cutout.
Accompanying drawing explanation
Fig. 1 is the cross-sectional schematic of the utility model chilling ring of gasifying furnace;
Fig. 2 is that the A-A in Fig. 1 overlooks cross-sectional schematic.
Reference numeral is: 1-vapourizing furnace bottom, 2-brick plate, 3-insulating fire brick protective layer; 4-annular outer ring plate, 5-taper prosopyle, 6-annular spacer ring; 7-annular inner ring plate, 8-horizontal anchor ring two, 9-slag is followed closely; 10-insulating refractory tamping layer, 11-water distribution annular space, 12-downtake; 13-back up pad, 14-bolt, 15-gasket; 16-Quench liquid distribution chamber, 17-Quench liquid transfer lime.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail:
As shown in Figure 1-2, the novel fluidized bed chilling ring of gasifying furnace of one described in the utility model, comprise annular outer ring plate 4, annular inner ring plate 7, annular spacer ring 6, downtake 12, Quench liquid transfer lime 17, annular outer ring plate 4 comprises horizontal anchor ring one and is positioned at longitudinal anchor ring one in horizontal anchor ring once face, the inner side in the horizontal anchor ring that annular inner ring plate 7, annular spacer ring 6 are all fixed on annular outer ring plate 4 once face, annular spacer ring 6 is between annular inner ring plate 7 and longitudinal anchor ring one of belt outer ring plate, and downtake 12 is installed on annular spacer ring 6 lower end; Form Quench liquid distribution chamber 16 between annular spacer ring 6 and the horizontal anchor ring one of annular outer ring plate 4, longitudinal anchor ring one, Quench liquid distribution chamber 16 connects Quench liquid transfer lime 17; The side towards the fire of described annular outer ring plate 4, annular inner ring plate 7 is provided with ring protection layer, and ring protection layer is insulating refractory.
The longitudinal cross-section of described annular outer ring plate 4 is T-shaped.
The longitudinal cross-section of described annular spacer ring 6 is L-type, in the lower end of annular spacer ring 6, edge is fixedly connected with the outer, upper end of downtake 12, below the horizontal anchor ring one of annular outer ring plate 4, the outer side of annular inner ring plate 7, forms Quench liquid water distribution annular space 11 between the medial surface of annular spacer ring 6 and downtake 12.
Described Quench liquid transfer lime 17 tilts to be connected to Quench liquid distribution chamber 16, and angle of inclination is preferably 45 °.
The medial surface of described annular spacer ring 6 is provided with some taper prosopyles 5, and the medial aperture of taper prosopyle 5 is greater than aperture, outside, and the angle of taper of taper prosopyle 5 is α, α is 5 ~ 10 °; Line shape β, the β at a certain angle in the medullary ray of described taper prosopyle 5 and the center of circle of annular spacer ring 6 are 10 ~ 30 °.
The horizontal anchor ring 28 that described annular inner ring plate 7 includes longitudinal anchor ring two and is positioned at inside longitudinal anchor ring two, below the end face of longitudinal anchor ring two and the horizontal anchor ring one of annular outer ring plate 4, snap is affixed.
Described ring protection layer comprises the insulating fire brick protective layer 3 of upper end and the insulating refractory tamping layer 10 of lower end; insulating fire brick protective layer 3 is positioned at above the horizontal anchor ring 28 of annular inner ring plate 7; held up by horizontal anchor ring 28, insulating refractory tamping layer 10 is connected to below insulating fire brick protective layer 3 by the coated horizontal anchor ring 28 of the mode of building.
Described insulating fire brick protective layer 3 material is the refractory material with erosion resistant, high temperature resistant, scour resistance, as high alumina brick, silicon carbide brick etc.; Described insulating refractory tamping layer 10 is erosion resistant, high temperature resistant, antistripping, plastic ramming mass, is made up of in proportion refractory aggregate, refractory powder, jointing compound and admixture.
The lower end of the horizontal anchor ring 28 of described annular inner ring plate 7 is connected with a large amount of slag nails 9, more can closely bond insulating refractory tamping layer 10 by slag nail 9; The material of described slag nail 9 can be similar to the material of chilling ring or downtake 12, can be high temperature resistant, corrosion resistant, wear-resisting nichrome Incloy828.
Described annular outer ring plate 4, annular inner ring plate 7 and annular spacer ring 6 are formed by forging process; Annular outer ring plate 4 and annular spacer ring 6 between, annular spacer ring 6 the lower end in edge and outer, downtake 12 upper end between, be all spliced by assembly welding between annular spacer ring 6 upper end and annular outer ring plate 4 lower end, between annular outer ring plate 4 and annular inner ring plate 7, between Quench liquid transfer lime 17 and Quench liquid distribution chamber 16.
Described chilling ring is connected to vapourizing furnace bottom 1 by bolt 14 and gasket 15, brick plate 2, and vapourizing furnace bottom outer setting has back up pad 13.
The working process of the utility model chilling ring of gasifying furnace: when the high-temperature synthesis gas of discharging from vaporizer and slag enter shock chamber from slag-drip opening; annular protective layer 3,10 1 aspect avoids synthetic gas and lime-ash directly washes away the harm caused to chilling ring side towards the fire 7; the insulating fire brick protective layer 3 of another aspect ring protection layer, insulating refractory tamping layer 10 can play the effect of flame retardant coating; increase the thermal resistance between synthetic gas and interior endless tube, the working temperature of chilling ring side towards the fire 7 is reduced.
Quench liquid enters Quench liquid distribution chamber 16 from Quench liquid transfer lime 17, enters water distribution annular space 11 by the prosopyle 5 on ring-type spacer ring 6, then flows out in annular inner ring plate 7 lower end and along the Quench liquid water out between downtake 12.Because the taper prosopyle 5 on ring-type spacer ring 6 is pre-small post-large, current are disperseed, the center of circle of prosopyle 5 medullary ray and annular spacer ring 6 be wired to 10 ~ 30 ° of angles, make Quench liquid not lumped scour and boring a hole, and make the Quench liquid in water distribution annular space 11 form circulation, make downtake 12 moisture film eddy flow and under, study of water film distribution evenly, avoid downtake 12 study of water film distribution uneven and cause burn phenomenon.
The annular outer ring plate 4 of chilling ring, annular inner ring plate 7 and annular spacer ring 6 are formed by forging process, and each assembly and Quench liquid transfer lime 17 are all spliced by assembly welding in shock chamber.Chilling ring assembly is connected on vapourizing furnace by bolt 14 and gasket 15, brick plate 2.The material use efficiency of the endless tube of this form is high, reduce manufacture chilling ring technical requirements, decrease spare part expense.Therefore, manufacture and the tooling cost of chilling ring is greatly reduced.

Claims (11)

1. a novel fluidized bed chilling ring of gasifying furnace, it is characterized in that: comprise annular outer ring plate (4), annular inner ring plate (7), annular spacer ring (6), downtake (12), Quench liquid transfer lime (17), annular outer ring plate (4) comprises horizontal anchor ring one and is positioned at longitudinal anchor ring one in horizontal anchor ring once face, annular inner ring plate (7), the inner side in the horizontal anchor ring that annular spacer ring (6) is all fixed on annular outer ring plate (4) once face, annular spacer ring (6) is positioned between annular inner ring plate (7) and longitudinal anchor ring one of belt outer ring plate, downtake (12) is installed on annular spacer ring (6) lower end, annular spacer ring (6) forms Quench liquid distribution chamber (16) with between the horizontal anchor ring one of annular outer ring plate (4), longitudinal anchor ring one, Quench liquid distribution chamber (16) connection Quench liquid transfer lime (17), the side towards the fire of described annular outer ring plate (4), annular inner ring plate (7) is provided with ring protection layer, and ring protection layer is insulating refractory.
2. the novel fluidized bed chilling ring of gasifying furnace of one according to claim 1, it is characterized in that: the longitudinal cross-section of described annular spacer ring (6) is L-type, in the lower end of annular spacer ring (6), edge is fixedly connected with the outer, upper end of downtake (12), forms Quench liquid water distribution annular space (11) below the horizontal anchor ring one of annular outer ring plate (4), between the medial surface of the outer side of annular inner ring plate (7), annular spacer ring (6) and downtake (12).
3. the novel fluidized bed chilling ring of gasifying furnace of one according to claim 1, is characterized in that: the inclination of described Quench liquid transfer lime (17) is connected to Quench liquid distribution chamber (16).
4. the novel fluidized bed chilling ring of gasifying furnace of one according to claim 3, is characterized in that: described Quench liquid transfer lime (17) angle of inclination is 45 °.
5. the novel fluidized bed chilling ring of gasifying furnace of one according to claim 1, it is characterized in that: the medial surface of described annular spacer ring (6) is provided with some taper prosopyles (5), the medial aperture of taper prosopyle (5) is greater than aperture, outside, the angle of taper of taper prosopyle (5) is α, α is 5 ~ 10 °.
6. the novel fluidized bed chilling ring of gasifying furnace of one according to claim 5, is characterized in that: line shape β, the β at a certain angle in the medullary ray of described taper prosopyle (5) and the center of circle of annular spacer ring (6) are 10 ~ 30 °.
7. the novel fluidized bed chilling ring of gasifying furnace of one according to claim 1, it is characterized in that: the horizontal anchor ring two (8) that described annular inner ring plate (7) includes longitudinal anchor ring two and is positioned at inside longitudinal anchor ring two, below the end face of longitudinal anchor ring two and the horizontal anchor ring one of annular outer ring plate (4), snap is affixed; The lower end of horizontal anchor ring two (8) is connected with slag nail (9).
8. the novel fluidized bed chilling ring of gasifying furnace of one according to claim 1, is characterized in that: described ring protection layer comprises the insulating fire brick protective layer (3) of upper end and the insulating refractory tamping layer (10) of lower end.
9. the novel fluidized bed chilling ring of gasifying furnace of one according to claim 8; it is characterized in that: described insulating fire brick protective layer (3) is positioned at above the horizontal anchor ring two (8) of annular inner ring plate (4); held up by horizontal anchor ring two (8), insulating refractory tamping layer (10) is connected to below insulating fire brick protective layer (3) by the coated horizontal anchor ring two (8) of the mode of building.
10. the novel fluidized bed chilling ring of gasifying furnace of one according to claim 1, is characterized in that: described annular outer ring plate (4), annular inner ring plate (7) and annular spacer ring (6) are formed by forging process; Annular outer ring plate (4) with annular spacer ring (6) between, in annular spacer ring (6) lower end edge and downtake (12) outer, upper end between, be all spliced by assembly welding between annular spacer ring (6) upper end and annular outer ring plate (4) lower end, between annular outer ring plate (4) and annular inner ring plate (7), between Quench liquid transfer lime (17) and Quench liquid distribution chamber (16).
11. novel fluidized bed chilling ring of gasifying furnace of one according to claim 1-10 any one, is characterized in that: described chilling ring is connected to vapourizing furnace bottom (1) by bolt (14) and gasket (15), brick plate (2).
CN201520065868.XU 2015-01-30 2015-01-30 A kind of new type of airflow bed gasification furnace chilling ring Active CN204644307U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104611070A (en) * 2015-01-30 2015-05-13 中国东方电气集团有限公司 Novel quenching ring for entrained-bed gasifier
CN108473896A (en) * 2015-12-16 2018-08-31 气体产品与化学公司 Gasification system and technique

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104611070A (en) * 2015-01-30 2015-05-13 中国东方电气集团有限公司 Novel quenching ring for entrained-bed gasifier
CN108473896A (en) * 2015-12-16 2018-08-31 气体产品与化学公司 Gasification system and technique
CN108473896B (en) * 2015-12-16 2021-10-15 气体产品与化学公司 Gasification system and process

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Effective date of registration: 20180417

Address after: 610000, No. 18, West core road, hi tech West District, Sichuan, Chengdu

Patentee after: Dongfang Electric Co., Ltd.

Address before: Jinniu District Chengdu City, Sichuan province 610036 Shu Road No. 333

Patentee before: Dongfang Electric Corporation

TR01 Transfer of patent right