CN210215261U - Gasifier chilling chamber with dust removal, bubble breaking and dehydration device - Google Patents
Gasifier chilling chamber with dust removal, bubble breaking and dehydration device Download PDFInfo
- Publication number
- CN210215261U CN210215261U CN201920484675.6U CN201920484675U CN210215261U CN 210215261 U CN210215261 U CN 210215261U CN 201920484675 U CN201920484675 U CN 201920484675U CN 210215261 U CN210215261 U CN 210215261U
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- Prior art keywords
- gas
- downcomer
- bubble breaking
- plate
- baffle
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- 239000000428 dust Substances 0.000 title claims abstract description 23
- 230000018044 dehydration Effects 0.000 title claims abstract description 12
- 238000006297 dehydration reaction Methods 0.000 title claims abstract description 12
- 238000002309 gasification Methods 0.000 claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 238000000926 separation method Methods 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 238000010791 quenching Methods 0.000 claims description 9
- 230000000171 quenching effect Effects 0.000 claims description 7
- 238000010410 dusting Methods 0.000 claims 1
- 239000006260 foam Substances 0.000 abstract description 19
- 239000012530 fluid Substances 0.000 abstract description 8
- 238000005406 washing Methods 0.000 abstract description 8
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract 2
- 235000017491 Bambusa tulda Nutrition 0.000 abstract 2
- 241001330002 Bambuseae Species 0.000 abstract 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract 2
- 239000011425 bamboo Substances 0.000 abstract 2
- 239000007789 gas Substances 0.000 description 74
- 239000003245 coal Substances 0.000 description 10
- 230000015572 biosynthetic process Effects 0.000 description 8
- 238000003786 synthesis reaction Methods 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 5
- 239000002893 slag Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000011335 coal coke Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
A chilling chamber of a gasification furnace with a dust removal, bubble breaking and dehydration device comprises a cylinder body and a down pipe arranged in the center of the cylinder body, wherein a cyclone separation component, a bubble breaking plate, a guide baffle and a baffle ring plate are sequentially arranged between the cylinder body and the down pipe from top to bottom; the bottom of the downcomer is an outward-expanding conical shell, and the lower edge of the large end of the conical shell is connected with a circular ring plate. The utility model discloses utilize the toper casing and the circular arc board of downcomer bottom to have the washing dust removal of forcing to gas, utilize the characteristic that fluid flows along the shortest path, force the fluid to spread around at the circular arc center to, and set up the structure of gas collecting plate, gas honeycomb duct, ring pipe and whirl section of thick bamboo inlet tube rationally, make its passageway of constituteing can guarantee that each way gas is along the equal route evenly distributed to whirl section of thick bamboo in, thereby reach the purpose that makes the fluid evenly distributed, and then effectively break the foam in the fluid; and then, carrying out cyclone separation on the gas carrying the liquid drops in a cyclone cylinder, and finally achieving the purpose of gas-liquid separation.
Description
Technical Field
The utility model relates to a chilling device in a gas flow bed gasifier in the technical field of coal gasification, in particular to a gasifier chilling chamber with a dust removal, bubble breaking and dehydration device.
Background
The coal cleaning and high-efficiency utilization is the guarantee of sustainable development of energy economy in China, the coal gasification technology is an important component part for the coal cleaning and high-efficiency utilization, and the entrained flow bed gasification technology is one of key technologies for the coal gasification.
The coal gasification process is a complex multi-phase physicochemical process which takes coal or coal coke as a raw material and oxygen, water vapor and the like as gasification agents under the condition of oxygen deficiency and converts combustible parts in solid coal or coal coke into gas fuel through chemical reaction under certain temperature and pressure. Wherein, the gasification furnace is the core equipment for providing a suitable place for the reaction.
The chilling chamber is an important component for ensuring the safe and efficient operation of the gasification furnace and consists of a chilling ring, a down pipe and a bottom water bath, wherein the chilling ring is positioned above the down pipe, the water bath is positioned below the down pipe, and the down pipe is required to extend into the position below the lowest liquid level of the water bath.
The downcomer is mainly used for guiding the cooled crude gas and the cooled glassy slag particles into a water bath; the water bath mainly has the functions that the cooled glassy slag particles are settled to the bottom of the container and are periodically discharged from a slag hole at the bottom of the container, and the crude gas is washed by the water bath and then escapes to a gas outlet at the top of the container.
The downcomer in the existing chilling assembly generally has a straight cylinder structure and directly extends into a water bath, and the bubble breaking plate is arranged in the axial direction of the downcomer and is perpendicular to the downcomer.
SUMMERY OF THE UTILITY MODEL
The utility model provides a gasifier chilling chamber with remove dust, broken bubble, dewatering device sets up reasonable dust removal, broken bubble and dehydration subassembly structure in gasifier chilling indoor portion to effectively break the combustion products of gasifier and get into produced bubble behind the water bath and deviate from partial dirt, the water content in producing the synthetic gas.
In order to achieve the above object, the utility model adopts the following technical scheme:
a chilling chamber of a gasification furnace with a dust removal, bubble breaking and dehydration device comprises a cylinder body and a down pipe arranged in the center of the cylinder body, wherein a cyclone separation component, a bubble breaking plate, a guide baffle and a baffle ring plate are sequentially arranged between the cylinder body and the down pipe from top to bottom; the bottom of the downcomer is an outward-expanding conical shell, and the lower edge of the large end of the conical shell is connected with a circular ring plate.
The included angle α between the conical shell expanded at the bottom of the downcomer and the horizontal direction is equal to or larger than 0 degree and equal to or smaller than α degree and equal to or smaller than 180 degree, and the included angle β between the conical shell expanded at the bottom of the downcomer and the vertical direction is equal to or larger than 0 degree and equal to or smaller than β degree and equal to or smaller than 90 degree.
The baffle plate comprises a circular ring plate, and a flange is arranged at the inner diameter of the circular ring plate.
The guide baffle is a circular ring plate, is connected with the outer wall of the downcomer and the inner wall of the cylinder body, and forms an inclination with the wall surface sideline at an angle theta in the axial section.
The utility model utilizes the structural characteristics to carry out forced water washing on the gas produced by the gasification furnace so as to remove the dust in the gas; by utilizing the characteristic that fluid (containing foam gas) flows along the shortest path, the fluid is forced to diffuse from the center of the circular arc to the periphery, so that the aim of uniformly distributing the fluid is fulfilled, and the foam in the fluid is effectively broken; and then, enabling the gas to enter a cyclone cylinder for cyclone, separating liquid drops carried in the gas under the action of centrifugal force and weight, and further reducing the liquid content in the outlet synthesis gas.
The utility model has simple structure, no rotating parts, reliable performance, compact equipment, large handling capacity, safety and reliability, and is particularly suitable for the use of bubble breaking, dehydration and dust removal in the chilling chamber of the gasification furnace.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a perspective view of FIG. 1;
FIG. 3 is a schematic view of the three-dimensional structure of the baffle ring plate of the present invention;
FIG. 4 is a schematic view of the three-dimensional structure of the bubble-breaking plate of the present invention;
FIG. 5 is a schematic structural view of the cyclone separation assembly of the present invention;
fig. 6 is a perspective view of fig. 5.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Referring to fig. 1 (reference numeral 16 in the figure is a partition board between the quenching chamber and the gasification chamber of the gasification furnace) and fig. 2, the quenching chamber of the gasification furnace with a dust removal, bubble breaking and dehydration device is composed of a cylinder 1, a down pipe 2, a baffle ring plate 3, a guide baffle 4, a bubble breaking plate 5, a cyclone separation component 6, a gas outlet baffle 7 and a gas outlet 8. The size of each component is determined by the syngas throughput. A cyclone separation component 6, a bubble breaking plate 5, a guide baffle 4 and a baffle ring plate 3 are sequentially arranged between the cylinder 1 and the downcomer 2 from top to bottom; the bottom of the downcomer 2 is an outward-expanding conical shell, and the lower edge of the large end of the conical shell is connected with a circular ring plate. The combustion products of the gasification furnace flow downwards through the descending pipe 2 and enter a water bath at the bottom of the cylinder body 1 of the chilling chamber, and the synthetic gas is subjected to forced water washing in the water bath under the limitation of a circular plate at the bottom of the descending pipe 2 so as to remove dust and dirt carried in the gas; after washing, the synthesis gas carries foam to flow upwards, and the synthesis gas passes through the baffle ring plate 3, the guide baffle 4, the foam breaking plate 5 and the cyclone separation component 6 in sequence to achieve the purpose of breaking foam and dewatering.
Wherein, the cylinder 1 is a pressure-bearing shell of a chilling chamber at the bottom of the gasification furnace.
The top of the downcomer 2 is a cylindrical shell, the bottom of the downcomer is an outward-expanding conical shell and an annular plate, the large end of the conical shell is positioned below the lowest liquid level (marked by the number 15 in figure 1), the outer diameter of the annular plate is larger than the inner diameter of the baffle ring plate 3, the assembly is used for guiding combustion products of the gasification furnace to enter a water bath and restraining the flow state of produced gas in the water bath, and therefore the purpose of forced water washing of the gas is achieved, wherein the gas flow path is controlled by adjusting the angles of α and β as shown in the figure, the angle is more than or equal to 0 degree and less than or equal to α degrees and less than or equal to 180 degrees, and the angle is more than or.
With reference to fig. 3, the baffle 3 comprises an annular plate with a flange at the inner diameter or directly consisting of an annular plate, the outer edge of which is connected to the inner wall of the cylinder 1, the assembly acting to redirect the gas escaping through the water bath and flowing upwards at the flange a.
The guide baffle 4 is two concentric circular ring plates which are respectively connected with the outer wall of the downcomer 2 and the inner wall of the cylinder 1 and form an inclination with an angle theta with the wall sideline in the axial section, and the assembly is used for guiding the gas adsorbed on the outer wall of the downcomer 2 and the inner wall of the cylinder 1 to flow to the center of an annular space formed by the outer wall of the downcomer 2 and the inner wall of the cylinder 1, so that the phenomenon of gas short circuit is avoided.
Referring to fig. 4, the bubble-breaking plate 5 is a circular arc-shaped annular shell, the surface of the circular arc-shaped annular shell is provided with a plurality of holes (gas channels) with saw teeth, the inner edge and the outer edge of the circular arc-shaped annular shell are respectively connected with the inner wall of the cylinder 1 and the outer wall of the downcomer 2, the structure of the assembly is characterized in that the axial section of the assembly is circular arc-shaped, the central point of the circular arc is positioned on the central line of the annular space formed by the outer wall of the downcomer 2 and the inner wall of the cylinder 1 and is superposed with the flange A of the baffle ring plate 3, and the assembly is mainly used for breaking.
Referring to fig. 5 and 6, the cyclone separation assembly 6 comprises a gas guide pipe 11, the upper end of the gas guide pipe 11 is communicated with an annular pipe 12, the lower end of the gas guide pipe is communicated with a gas collecting plate 10, the lower end of a cyclone cylinder inlet pipe 13 is communicated with the annular pipe 12, the upper end of the cyclone cylinder inlet pipe is communicated with a cyclone cylinder 14 in a tangential direction, a downcomer 9 is a circular or semicircular steel pipe, one end of the downcomer is connected to the edge of the bottom of the gas collecting plate 10, the other end of the downcomer extends to a position below the lowest liquid level and is lower than the lowest end position of the downcomer 2; the assembly is primarily used to direct the cyclone separated liquid into a water bath.
The gas collecting plate 10 is an arc-shaped annular shell with the same specification and size as the bubble breaking plate 5, and the surface of the arc-shaped annular shell is provided with an elliptical hole connected with the gas guide pipe 11 and used for collecting the bubbles broken gas to the cyclone cylinder 14.
The gas guide pipe 11 is a structure similar to a 'slave' shape formed by welding round steel pipes, the bottom end of the gas guide pipe is connected with the gas collecting plate 10, the top end of the gas guide pipe is connected with the circular ring pipe 12, and the structure characteristics of the gas guide pipe can ensure that each path of gas in the circular space formed by the outer wall of the downcomer 2 and the inner wall of the barrel 1 can be gathered to the circular ring pipe 12 according to completely equal paths.
The circular pipe 12 is circular ring shape surrounded by steel pipe, and it is used to ensure that each path of gas is gathered according to completely equal path and then evenly distributed to the cyclone cylinder 14 in the circular space formed by the outer wall of the downcomer 2 and the inner wall of the cylinder 1.
The cyclone cylinder inlet pipe 13 is formed by bending a steel pipe or welding the steel pipe and a pipe fitting, one end of the cyclone cylinder inlet pipe is connected to the top of the circular ring pipe 12, the other end of the cyclone cylinder inlet pipe is connected to the cyclone cylinder 14, and the cyclone cylinder inlet pipe is structurally characterized in that: the connecting section of the cyclone cylinder 14 tangentially enters the cylinder of the cyclone cylinder 14 so that the gas generates cyclone after entering the cylinder of the cyclone cylinder 14.
The cyclone cylinder 14 is formed by welding an upper cylinder and a lower conical section, and is used for enabling gas to be subjected to gas-liquid separation under the combined action of gravity and centrifugal force in the space, and whether a flow guide device is arranged in the cyclone cylinder or not and whether a cover plate is additionally arranged at the top or not need to be further considered according to the characteristics of a medium;
the upper part of the cylinder body 1 is provided with a gas outlet 8, a gas outlet baffle 7 is arranged at the gas outlet 8, and the gas outlet baffle 7 is of a semi-cylindrical thin shell structure with a sealed bottom and is used for forcing the synthesis gas to enter the gas outlet 8 through the top of the baffle and then to be discharged out of the gasification furnace.
The utility model discloses a theory of operation:
referring to fig. 1, the combustion products of the gasification furnace are synthesis gas (crude gas) and coal slag, the combustion products flow downwards through a downcomer 2 and enter a water bath at the bottom of a cylinder 1 of a chilling chamber, and a large amount of foam is generated after the above media enter the water bath.
After the medium enters the water bath, the coal slag continues to precipitate downwards, and the synthesis gas is subjected to forced water washing in the water bath under the limitation of a ring plate at the bottom of the descending pipe 2 to remove dust and dirt carried in the gas; after washing, the gas entrains a large amount of foam, moisture and partial dust to move to the upper part of the cylinder 1 of the chilling chamber. In the rising process of the gas, the gas is blocked by the baffle ring plate 3 and only can horizontally move, so that the path of the gas washing process is increased until the gas moves to the ring surface where the flange A of the baffle ring plate 3 is positioned, and the gas continues to move to the upper part of the cylinder body 1 of the chilling chamber.
The process of upward flow of the foam entrained by the synthesis gas follows the axiom of flow along the shortest path. In order to fully break foam in gas, the circular arc-shaped annular foam breaking plate 5 is arranged, so that the gas is fully diffused to the foam breaking plate 5 at the circle center of the circular arc-shaped annular foam breaking plate 5 along the direction of the dotted line shown in the figure, when the gas passes through the foam breaking plate 5, the foam is pierced by the sawteeth on the pore channels of the foam breaking plate 5, the purpose of breaking foam carried by synthesis gas is achieved, and a plurality of groups of foam breaking plates 5 can be arranged according to actual conditions for fully breaking the foam.
After passing through the bubble breaking plate 5, the gas carries a large amount of water to move towards the upper part of the cylinder 1 of the chilling chamber, and when passing through the guide baffle 4, the gas adsorbed on the outer wall of the downcomer 2 and the inner wall surface of the cylinder 1 can be guided to flow towards the center of an annular space formed by the outer wall of the downcomer 2 and the inner wall of the cylinder 1, so that the gas short circuit phenomenon is avoided;
the gas moves towards the upper part of the chilling chamber cylinder body 1 until being collected by a gas collecting plate 10 and uniformly converged into an annular pipe 12 through a gas guide pipe 11 according to an equal path, and then is uniformly distributed into each cyclone cylinder 14 through a cyclone cylinder inlet pipe 13 for cyclone gas-liquid separation; the separated gas continues to move towards the upper part of the chilling chamber cylinder 1 and is discharged out of the gasification furnace through a gas outlet baffle 7 and a gas outlet 8; the separated liquid is discharged from the bottom of the cyclone cylinder 14 and returns to the water bath at the bottom of the cylinder body 1 through the downcomer 9.
The dust in the gas absorbed and carried by the belt part is returned to the water bath at the bottom of the cylinder 1 due to the flow of the liquid, thereby being beneficial to reducing the dust content of the synthetic gas at the outlet.
Claims (8)
1. A chilling chamber of a gasification furnace with a dust removal, bubble breaking and dehydration device comprises a cylinder body and a down pipe arranged at the center of the cylinder body, and is characterized in that a cyclone separation component (6), a bubble breaking plate (5), a guide baffle (4) and a baffle ring plate (3) are sequentially arranged between the cylinder body (1) and the down pipe (2) from top to bottom; the bottom of the downcomer (2) is an outward-expanding conical shell, and the lower edge of the large end of the conical shell is connected with a circular ring plate.
2. The quench chamber of a gasification furnace with dust removal, bubble breaking and water removal devices as claimed in claim 1, wherein the included angle α between the conical shell expanded from the bottom of the downcomer (2) and the horizontal direction is 0 ° - α ° -180 °, and the included angle β between 0 ° - β ° -90 ° with the vertical direction.
3. The gasifier quench chamber with a de-dusting, de-bubbling, de-watering device according to claim 1, wherein said baffle ring plate (3) comprises a ring plate with a flange at its inner diameter.
4. The quenching chamber of gasification furnace with dust removing, bubble breaking and dewatering device according to claim 1, wherein the guiding baffle (4) is a circular ring plate which is connected with the outer wall of the downcomer (2) and the inner wall of the barrel (1) and forms an inclination with an angle θ with the boundary line of the wall surface in the axial section.
5. The quenching chamber of gasification furnace with dust removing, bubble breaking and dewatering device according to claim 1, wherein the bubble breaking plate (5) is a circular arc-shaped annular shell, and the surface of the circular arc-shaped annular shell is provided with a plurality of holes with saw teeth.
6. The quenching chamber of the gasification furnace with the dust removal, bubble breaking and dehydration devices as claimed in claim 5, wherein the circular arc-shaped annular shell has a circular arc-shaped cross section, and the central point of the circular arc is on the central line of the annular space formed by the outer wall of the downcomer (2) and the inner wall of the barrel (1) and is coincided with the upper end face of the flange of the baffle plate (3).
7. The quenching chamber of the gasification furnace with dust removal, bubble breaking and dehydration devices as claimed in claim 1, wherein said cyclone separation component (6) comprises a gas guide pipe (11), the upper end of the gas guide pipe (11) is communicated with the circular tube (12), the lower end is communicated with the gas collecting plate (10), the lower end of the cyclone cylinder inlet pipe (13) is communicated with the circular tube (12), and the upper end is tangentially communicated with the cyclone cylinder (14); one end of the downcomer (9) is connected to the edge of the bottom of the gas collecting plate (10), and the other end of the downcomer extends to a position below the lowest liquid level of the water bath at the bottom of the chilling chamber barrel (1) and is lower than the lowest end position of the downcomer (2).
8. The quenching chamber of the gasification furnace with the dust removal, bubble breaking and dehydration devices as claimed in claim 1, wherein the upper part of the cylinder body (1) is provided with a gas outlet (8), a gas outlet baffle (7) is arranged at the gas outlet (8), and the gas outlet baffle (7) is of a semi-cylindrical thin shell structure with a sealed bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920484675.6U CN210215261U (en) | 2019-04-11 | 2019-04-11 | Gasifier chilling chamber with dust removal, bubble breaking and dehydration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920484675.6U CN210215261U (en) | 2019-04-11 | 2019-04-11 | Gasifier chilling chamber with dust removal, bubble breaking and dehydration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210215261U true CN210215261U (en) | 2020-03-31 |
Family
ID=69922955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920484675.6U Withdrawn - After Issue CN210215261U (en) | 2019-04-11 | 2019-04-11 | Gasifier chilling chamber with dust removal, bubble breaking and dehydration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210215261U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109943365A (en) * | 2019-04-11 | 2019-06-28 | 甘肃蓝科石化高新装备股份有限公司 | A kind of gasification furnace shock chamber with dedusting, brokenly bubble, dehydration device |
-
2019
- 2019-04-11 CN CN201920484675.6U patent/CN210215261U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109943365A (en) * | 2019-04-11 | 2019-06-28 | 甘肃蓝科石化高新装备股份有限公司 | A kind of gasification furnace shock chamber with dedusting, brokenly bubble, dehydration device |
| CN109943365B (en) * | 2019-04-11 | 2023-12-19 | 甘肃蓝科石化高新装备股份有限公司 | Gasifier quench chamber with dust removal, bubble breaking and dehydration device |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20200331 Effective date of abandoning: 20231219 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200331 Effective date of abandoning: 20231219 |