CN203639428U - Anti-vortexing long-lifetime cinder notch structure of coal-water-slurry pressurizing gasifier - Google Patents
Anti-vortexing long-lifetime cinder notch structure of coal-water-slurry pressurizing gasifier Download PDFInfo
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- CN203639428U CN203639428U CN201320825094.7U CN201320825094U CN203639428U CN 203639428 U CN203639428 U CN 203639428U CN 201320825094 U CN201320825094 U CN 201320825094U CN 203639428 U CN203639428 U CN 203639428U
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- cinder notch
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Abstract
The utility model provides an anti-vortexing long-lifetime cinder notch structure of a coal-water-slurry pressurizing gasifier, and relates to a cinder notch structure of a coal-water-slurry pressurizing gasifier. The cinder notch structure comprises an upper cinder notch and a lower cinder notch which are connected with top and bottom; the upper part of the upper cinder notch is in a shape of a funnel which is connected with an inclined surface of a tapered bottom of the gasifier, and the lower part of the upper cinder notch is in a shape of a straight barrel and forms a transition section which is connected with an end port in the upper part of the lower cinder notch; the sections of refractory bricks arranged as a loop about the lower cinder notch are all in a shape of a reversed right trapezoid; the side edges of the lower parts of the refractory bricks at the previous loop are leveled with the side edges of the upper parts of the refractory bricks at the next loop; the inclined sides of the right trapezoidal sections of the refractory bricks at every adjacent two loops are smoothly connected, thus a diffusion section is formed in the inner side surface of the lower cinder notch, wherein ash and airflow which flow through the transition section of the upper transition section can be diffused all around along a reversed tapered inclined surface. With the adoption of the anti-vortexing long-lifetime cinder notch structure of the coal-water-slurry pressurizing gasifier, the down current from a combustion chamber of the gasifier forms a vortex at the lower part of a cinder notch can be avoided, the refractory brick at the lower part of the cinder notch can also be greatly prevented from being flushed and damaged by the airflow, thus the service life of the refractory bricks is prolonged.
Description
Technical field
The utility model relates to the cinder notch structure of coal water slurry pressurized gasifier, is specially cinder notch structure of anti-eddy current long lifetime of a kind of coal water slurry pressurized gasifier.
Background technology
According to the structure composition of coal water slurry pressurized gasifier combustion chamber, its refractory materials configuration is generally divided into three parts from top to bottom, i.e. vault refractory materials, cylindrical shell refractory materials and cone end refractory materials.At the bottom of the cone of coal water slurry pressurized gasifier, refractory materials is supported by brick plate, from inside to outside has three layers, i.e. side towards the fire high-chrome brick layer, middle low chrome brick layer and the heavy cast bed of material near box hat, and side towards the fire high-chrome brick layer comprises chamfered portion and cinder notch part.
The cinder notch part of coal water slurry pressurized gasifier is the thick gas of generation after coal water slurry reaction and the outlet of liquid slag, and these thick gas and liquid slag enter downtake through cinder notch, then enter downstream process flow process.Because cinder notch temperature relative combustion chamber upper temp is lower, the liquid slag that coal water slurry reaction forms can reduce the larger lime-ash of viscosity that becomes solid-liquid due to temperature, the effect of cinder notch is that the thick gas and the lime-ash that guarantee the rear generation of coal water slurry reaction are discharged from coal water slurry pressurized gasifier combustion chamber smoothly, its assurance reaches deslagging, the mechanism of scavenging action is that cinder notch top makes circulation area sharply reduce at cinder notch position with the funnel-shaped structure that cone end chamfered portion forms, pressure increases, air-flow velocity sharply increases, simultaneously due to cinder notch bottom ring widening of the ring, space increases, pressure reduces, lime-ash disintegrates and is dispersed into small-particle and enters downtake with air-flow.In existing cinder notch structure, cinder notch bottom is encircled up and down refractory brick and is formed faulting of slab ends structure, and the edge of every ring refractory brick is right-angle structure, is therefore more easily damaged by airflow scouring; The right-angle structure of the every ring in cinder notch bottom easily makes air-flow form eddy current and cinder notch refractory brick is come off, and then damages vapourizing furnace brick plate and chilling ring, causes vapourizing furnace to stop in emergency, and when serious, may lead to security incident.
Utility model content
Technical problem to be solved in the utility model is that eddy current is easily formed at existing coal water slurry pressurized gasifier cinder notch bottom and refractory brick is easily damaged herein, and cinder notch is short work-ing life.
The utility model for solving the problems of the technologies described above adopted technical scheme is: a kind of coal water slurry pressurized gasifier anti-eddy current long lifetime cinder notch structure, formed by the upper cinder notch joining up and down and lower cinder notch, described upper cinder notch is made up of at least one ring refractory brick, its top is the funnel-form of joining with described Failure of Gasifier Conical Bottom inclined-plane, its underpart is straight-tube shape, forms the transition section joining with lower cinder notch upper port; Described lower cinder notch is made up of at least two ring refractory brick, and its bottom is supported by the brick plate of described vapourizing furnace; The section of the every ring refractory brick of lower cinder notch is all the right-angled trapezium of handstand, and the lower edge of a upper ring refractory brick is concordant with the top edge of next ring refractory brick, the hypotenuse of adjacent two ring refractory brick right-angled trapezium sections is smoothly joined, thereby the medial surface of lower cinder notch is formed for flowing through the lime-ash of cinder notch transition section and the expansion section that air-flow spreads along a back taper inclined-plane to surrounding.
The inside edge of described lower cinder notch bottom protrudes from the edge of brick plate.
Beneficial effect: due to the side towards the fire of each layer of refractory brick of cinder notch bottom is designed to be connected smoothly, the edge of adjacent layers refractory brick does not form faulting of slab ends structure, thereby can avoid the downdraft of vapourizing furnace combustion chamber to form eddy current in cinder notch bottom, avoid cinder notch bottom refractory brick more easily to be damaged by airflow scouring, thereby increase the security of gasifier operation, increase the work-ing life of refractory brick; Progressively damage in the process of internal consumption at cinder notch, because the thickness of cinder notch refractory brick increases gradually, this can further increase the work-ing life of cinder notch refractory brick simultaneously.
Accompanying drawing explanation
Fig. 1 is the longitudinal section schematic diagram of the utility model coal water slurry pressurized gasifier cinder notch structure.
Reference numeral is: 1, upper cinder notch, 2, lower cinder notch, 3, brick plate.
Embodiment
As shown in Figure 1, a kind of cinder notch structure of anti-eddy current long lifetime of coal water slurry pressurized gasifier, formed by the upper cinder notch 1 joining up and down and lower cinder notch 2, described upper cinder notch 1 is made up of at least one ring refractory brick, its top is the funnel-form of joining with described Failure of Gasifier Conical Bottom inclined-plane, its underpart is straight-tube shape, forms the transition section joining with lower cinder notch 2 upper port; Described lower cinder notch 2 is made up of at least two ring refractory brick, and its bottom is supported by the brick plate 3 of described vapourizing furnace; The section of the every ring refractory brick of lower cinder notch 2 is all the right-angled trapezium of handstand, and the lower edge of a upper ring refractory brick is concordant with the top edge of next ring refractory brick, the hypotenuse of adjacent two ring refractory brick right-angled trapezium sections is smoothly joined, thereby the medial surface of lower cinder notch 2 is formed for flowing through the lime-ash of cinder notch 1 transition section and the expansion section that air-flow spreads along a back taper inclined-plane to surrounding.
The inside edge of described lower cinder notch 2 bottoms protrudes from the edge of brick plate 3.
In Fig. 1, at the bottom of the chamfered portion of brick A of upper cinder notch 1 and the cone of vapourizing furnace, inclined-plane is connected, the refractory brick of lower cinder notch 2 adopts longitudinal section to be shaped as the right-angled trapezium brick of handstand, be the length that the length of refractory brick upper surface is greater than lower surface, as brick C and brick D, the lower surface justified margin of the edge of the upper surface of brick C and upper cinder notch 1 bottom refractory brick B, the justified margin of the edge of the upper surface of brick D and brick C lower surface, between the side towards the fire of the refractory brick of adjacent levels, there is no faulting of slab ends structure, descend thus the inner side side towards the fire of cinder notch 2 refractory brick to form a level and smooth inverted cone surface structure.Can see that longitudinal section that brick C and brick D build rear lower cinder notch 2 by laying bricks or stones has formed the right-angled trapezium of larger handstand, whole cinder notch top is a larger funnel shaped, and the funnel-form (vertically section top and the bottom are total for the neck of funnel) of a less handstand has been formed at bottom.The undermost refractory brick D of lower cinder notch 2 is placed on brick plate 3, and more than its edge stretches out brick plate 10mm, to protect brick plate 3 not to be subject to airflow scouring.
Claims (2)
1. the cinder notch structure of anti-eddy current long lifetime of coal water slurry pressurized gasifier, it is characterized in that: formed by the upper cinder notch (1) joining up and down and lower cinder notch (2), described upper cinder notch (1) is made up of at least one ring refractory brick, its top is the funnel-form of joining with described Failure of Gasifier Conical Bottom inclined-plane, its underpart is straight-tube shape, forms the transition section joining with lower cinder notch (2) upper port; Described lower cinder notch (2) is made up of at least two ring refractory brick, and its bottom is supported by the brick plate (3) of described vapourizing furnace; The section of the every ring refractory brick of lower cinder notch (2) is all the right-angled trapezium of handstand, and the lower edge of a upper ring refractory brick is concordant with the top edge of next ring refractory brick, the hypotenuse of adjacent two ring refractory brick right-angled trapezium sections is smoothly joined, thereby the medial surface of lower cinder notch (2) is formed for flowing through the lime-ash of cinder notch (1) transition section and the expansion section that air-flow spreads along a back taper inclined-plane to surrounding.
2. cinder notch structure of anti-eddy current long lifetime of a kind of coal water slurry pressurized gasifier as claimed in claim 1, is characterized in that: the inside edge of described lower cinder notch (2) bottom protrudes from the edge of brick plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320825094.7U CN203639428U (en) | 2013-12-16 | 2013-12-16 | Anti-vortexing long-lifetime cinder notch structure of coal-water-slurry pressurizing gasifier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320825094.7U CN203639428U (en) | 2013-12-16 | 2013-12-16 | Anti-vortexing long-lifetime cinder notch structure of coal-water-slurry pressurizing gasifier |
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| CN203639428U true CN203639428U (en) | 2014-06-11 |
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| CN201320825094.7U Expired - Fee Related CN203639428U (en) | 2013-12-16 | 2013-12-16 | Anti-vortexing long-lifetime cinder notch structure of coal-water-slurry pressurizing gasifier |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110607194A (en) * | 2019-10-21 | 2019-12-24 | 空气化工产品神华(上海)气化技术有限公司 | Integrated cone bottom brick and brick supporting plate adopting water-cooling pipe structure |
| CN110684564A (en) * | 2019-11-21 | 2020-01-14 | 江苏索普（集团）有限公司 | Slag hole brick structure of gasification furnace |
| CN111979428A (en) * | 2020-09-16 | 2020-11-24 | 金川集团股份有限公司 | Horizontal converter fire door zone inside lining double-arch masonry structure |
-
2013
- 2013-12-16 CN CN201320825094.7U patent/CN203639428U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110607194A (en) * | 2019-10-21 | 2019-12-24 | 空气化工产品神华(上海)气化技术有限公司 | Integrated cone bottom brick and brick supporting plate adopting water-cooling pipe structure |
| CN110684564A (en) * | 2019-11-21 | 2020-01-14 | 江苏索普（集团）有限公司 | Slag hole brick structure of gasification furnace |
| CN111979428A (en) * | 2020-09-16 | 2020-11-24 | 金川集团股份有限公司 | Horizontal converter fire door zone inside lining double-arch masonry structure |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20181216 |
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| CF01 | Termination of patent right due to non-payment of annual fee |