CN113046133A - Semi-waste boiler gasification equipment capable of reducing ash deposition and ablation and use method thereof - Google Patents
Semi-waste boiler gasification equipment capable of reducing ash deposition and ablation and use method thereof Download PDFInfo
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- CN113046133A CN113046133A CN202110464707.8A CN202110464707A CN113046133A CN 113046133 A CN113046133 A CN 113046133A CN 202110464707 A CN202110464707 A CN 202110464707A CN 113046133 A CN113046133 A CN 113046133A
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- 238000002309 gasification Methods 0.000 title claims abstract description 47
- 239000002699 waste material Substances 0.000 title claims abstract description 32
- 238000002679 ablation Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000008021 deposition Effects 0.000 title claims description 27
- 238000001816 cooling Methods 0.000 claims abstract description 61
- 230000005855 radiation Effects 0.000 claims abstract description 30
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 20
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 20
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 239000003245 coal Substances 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 124
- 239000000498 cooling water Substances 0.000 claims description 43
- 239000002893 slag Substances 0.000 claims description 15
- 238000010791 quenching Methods 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 239000004071 soot Substances 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims 4
- 238000009825 accumulation Methods 0.000 abstract description 5
- 238000011084 recovery Methods 0.000 abstract description 5
- 239000002956 ash Substances 0.000 description 40
- 230000001174 ascending effect Effects 0.000 description 8
- 230000002000 scavenging effect Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000010797 grey water Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/74—Construction of shells or jackets
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/82—Gas withdrawal means
- C10J3/84—Gas withdrawal means with means for removing dust or tar from the gas
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/86—Other features combined with waste-heat boilers
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/093—Coal
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
本发明的目的在于提供一种减少积灰和烧蚀的半废锅气化设备及其使用方法，在实现回收合成气高温显热的同时，有效解决废锅流程中结渣积灰的问题；为达到上述目的，本发明的解决方法是提供一种减少积灰和烧蚀的半废锅气化设备，包括：从上至下依次连接的气化反应室、整流段、辐射换热室和激冷室；所述气化反应室用于将煤气化后得到合成气和灰渣；所述整流段用于减小合成气和灰渣的速度波动，以免撞击到辐射换热室内壁；所述辐射换热室包括位于所述辐射换热室内的水冷壁部和位于所述辐射换热室下部的冷却锥部。
The purpose of the present invention is to provide a kind of semi-waste boiler gasification equipment and its use method that reduce ash accumulation and ablation, while realizing the recovery of high temperature sensible heat of synthesis gas, effectively solve the problem of slagging and ash accumulation in the waste boiler process; In order to achieve the above object, the solution of the present invention is to provide a semi-waste boiler gasification device that reduces ash accumulation and ablation, including: a gasification reaction chamber, a rectification section, a radiation heat exchange chamber and a chilling chamber; the gasification reaction chamber is used to gasify coal to obtain syngas and ash; the rectification section is used to reduce the speed fluctuation of the syngas and ash to avoid hitting the inner wall of the radiation heat exchange chamber; The radiation heat exchange chamber includes a water-cooled wall portion located in the radiation heat exchange chamber and a cooling cone portion located at a lower portion of the radiation heat exchange chamber.
Description
Technical Field
The invention relates to the technical field of coal chemical industry, in particular to semi-waste boiler gasification equipment for reducing ash deposition and ablation and a using method thereof.
Background
The entrained flow gasification technology is divided from the aspects of energy recovery and temperature reduction measures of the crude synthesis gas, and comprises a chilling process, a semi-waste pot process and a full-waste pot process. Wherein, the half waste boiler process can modify the added steam amount according to different operation conditions, which is more in line with the chemical production.
The main problem of gasification equipment for a semi-waste boiler process is slag blockage and ash accumulation of the waste boiler. The problem of slag and ash deposition in the waste boiler process is effectively solved while the high-temperature sensible heat of the synthesis gas is recovered, and the problem of long-period stable operation is still the unsolved problem in the technical field.
CN108102719A, a gasification equipment with a recovery device capable of preventing slag blockage is provided, wherein the radiation waste boiler is set to be a cylindrical radiation waste boiler and a conical radiation waste boiler connected to the bottom of the cylindrical radiation waste boiler to form a longitudinal channel for recovering coal gas and ash, a spray head is arranged in the middle of the conical radiation waste boiler to spray synthetic gas and ash, the spray head is arranged on a conical surface of the structure, the structure is easy to be washed by high-temperature air flow and ash, so that the requirement on the spray head is high, and meanwhile, the conical surface can directly contact the synthetic gas and the ash to cause ablation.
CN108707479A provides a radiation waste boiler system and a working method thereof, and proposes that a plurality of layers of scavenging gas circular pipes are added on the outer side of a water-cooled wall of a radiation waste boiler barrel, and a plurality of scavenging gas branch pipes and scavenging holes are arranged on the inner side.
CN1063433790, which provides a gasification equipment with a recovery device and capable of preventing slag blockage, mentions that a plurality of layers of rappers are arranged on the outer side of a water wall, and a gas soot blower is arranged on the water wall.
In summary, the existing patents mostly propose to remove ash by rapping and blowing, and the mode mainly aims at the problem of ash deposition on the water wall, but the problem of ash deposition and ablation is more likely to occur because the speed direction of synthesis gas and ash residues and the conical surface of the cooling cone form an included angle.
Therefore, the semi-waste pot gasification equipment for reducing ash deposition and ablation is provided for the technical field of coal chemical industry in a targeted manner, and the technical problem to be solved is urgent.
Disclosure of Invention
The invention aims to provide semi-waste boiler gasification equipment capable of reducing ash deposition and ablation and a using method thereof, which can effectively solve the problem of slag deposition in the waste boiler process while realizing recovery of high-temperature sensible heat of synthesis gas.
In order to achieve the above object, the solution of the present invention is to provide a semi-waste boiler gasification equipment for reducing ash deposition and ablation, comprising: the gasification reaction chamber, the rectifying section, the radiant heat exchange chamber and the chilling chamber are sequentially connected from top to bottom; the gasification reaction chamber is used for gasifying coal to obtain synthetic gas and ash; the rectifying section is used for reducing the speed fluctuation of the synthesis gas and the ash slag so as to avoid impacting the inner wall of the radiation heat exchange chamber; the radiation heat exchange chamber comprises a water-cooling wall part and a cooling cone part, wherein the water-cooling wall part is positioned in the radiation heat exchange chamber, and the cooling cone part is positioned at the lower part of the radiation heat exchange chamber.
Furthermore, the chilling chamber comprises a chilling ring, a descending pipe, an ascending pipe and a water bath, wherein the chilling ring is positioned at the joint of the cooling cone and the descending pipe, the pipe diameter of the ascending pipe is larger than that of the descending pipe, the ascending pipe is arranged at the outlet of the descending pipe, the outlet of the descending pipe is submerged by the water bath, and the upper end of the ascending pipe is higher than the water bath level.
Further, the cooling pyramis includes that cooling awl, water film generate the device, and the water film generates the device and is located the top of cooling awl, the cooling awl is the back taper structure, the cooling awl includes cooling water passageway and conical surface, the cooling water passageway is located the conical surface is outside, the cooling water passageway is used for also having the cooling simultaneously for the water film generates the device provides the cooling water for the effect of conical surface, the water film generates the device and is used for forming first water film at the conical surface internal surface, and the minimum circumference internal diameter that the water film generated the device is greater than the internal diameter of radiation heat transfer indoor wall to avoid the deposition on the water film generates the device.
Further, the ratio of the height of the cooling cone to the height of the radiant heat exchange chamber is 1/2 to 1/8; the included angle between the conical surface and the axial direction is 20-50 degrees.
Furthermore, the water film generation device is a nozzle and is arranged at the outlet of the cooling water channel.
Furthermore, the water film generating device comprises a water collecting tank and a guide plate, wherein the bottom of the water collecting tank is provided with a plurality of water outlet holes, and the guide plate is arranged at the water outlet holes to guide the water from the water collecting tank to the conical surface so as to form an uninterrupted water film on the conical surface. The included angle a between the plurality of guide plates and the generatrix of the cooling cone is 20-60 degrees.
Further, the inlet of the cooling water channel is connected with the chilling ring, and the cooling water flows out from the chilling ring outlet to form a second water film on the surface of the descending pipe.
Furthermore, a water film drainage plate is arranged at the joint of the cooling cone and the chilling ring, and is used for enabling the first water film to flow into the descending pipe along the water film drainage plate, so that the first water film and the second water film are prevented from being converged.
Furthermore, the upper part of the water film drainage plate is a conical surface connected with the cooling cone, the lower part of the water film drainage plate is a cylindrical surface tangent to the chilling ring, the included angle between the generatrix of the conical surface at the upper part of the drainage plate and the axial direction is c, the included angle between the generatrix of the conical surface of the cooling cone and the axial direction is b, and the numerical value of c is equal to b.
A use method of a semi-waste boiler gasification device for reducing ash deposition and ablation comprises the steps that coal powder and a gasifying agent are combusted in a gasification reaction chamber to generate synthesis gas and ash, the synthesis gas and the ash enter a radiation heat exchange chamber through a rectification section, and enter a cooling cone part after heat exchange is carried out on a water-cooling wall part; cooling water enters the inlet of the cooling water channel, a part of the cooling water enters the cooling water channel and then reaches the water film generating device, a first water film is formed on the conical surface, the other part of the cooling water flows out from the outlet at the lower part of the chilling ring, and a second water film is formed on the surface of the descending pipe; the first water film isolates high-temperature synthesis gas, ash and slag from the conical surface, and plays roles in avoiding high-temperature ablation and reducing ash deposition; ash particles falling to the first water film enter the downcomer along with the first water film; the ash slag is rapidly cooled in cooling water and then leaves from an ash slag outlet at the bottom of the gasification furnace, and the synthetic gas enters a water bath for cooling, passes through a riser and then leaves the gasification furnace through a synthetic gas outlet.
The invention has the advantages that:
1) the conical surface of the cooling cone at the bottom of the radiation heat exchange chamber is provided with a uniform uninterrupted water film, so that the problem of ash deposition and slagging at the waste boiler section is reduced, the ablation and impact of synthetic gas and ash on the conical surface are reduced, the crude synthetic gas after heat exchange of the waste boiler can be washed and cooled, and the ash content of the synthetic gas can be further reduced.
2) The water film generation device on the cooling cone can make full use of cooling water, dirty grey water can be used, high-quality water is saved, meanwhile, a cooling water channel is arranged on the outer side of the conical surface, double cooling can be achieved due to the water film in the conical surface, the cooling cone is protected, and the problems of dust deposition and ablation are reduced.
3) The first water film formed on the conical surface of the cooling cone by the water film generating device and the second water film formed on the inner side of the descending pipe by the chilling ring jointly form two water films, so that the problem that the existing descending pipe is locally thermally deformed and even cracked due to the fact that only one water film is easily hung on the inner wall of the descending pipe is solved.
Drawings
FIG. 1 is a schematic view of a semi-waste boiler gasification apparatus for reducing ash deposition and ablation provided by the present invention;
FIG. 2 is a schematic view of a quench ring provided by the present invention;
FIG. 3 is a schematic view of the cooling cone provided by the present invention;
FIG. 4 is a sectional view of a water film forming apparatus according to the present invention.
As shown in the figure, 1-gasification reaction chamber, 2-rectifying section, 3-water-cooled wall part, 4-radiation heat exchange chamber, 5-water film generation device, 6-cooling cone, 7-chilling ring, 8-synthetic gas outlet, 9-descending pipe, 10-ascending pipe, 11-water bath, 12-ash outlet, 13-conical surface, 14-cooling water channel, 15-water film diversion plate, 16-cooling water channel inlet, 17-first water film, 18-second water film, 19-guide plate, 20-water collecting tank, 21-water outlet.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
As shown in fig. 1, a semi-spent pot gasification apparatus for reducing soot deposition and ablation, comprising: the gasification reaction chamber 1, the rectification section 2, the radiant heat exchange chamber 4 and the chilling chamber are sequentially connected from top to bottom; the gasification reaction chamber 1 is used for gasifying coal to obtain synthesis gas and ash; the rectifying section 2 is used for reducing the speed fluctuation of the synthesis gas and the ash slag so as to avoid impacting the inner wall of the radiation heat exchange chamber 4; the radiation heat exchange chamber 4 comprises a water-cooling wall part 3 positioned in the radiation heat exchange chamber 4 and a cooling cone part positioned at the lower part of the radiation heat exchange chamber 4.
The chilling chamber comprises a chilling ring 7, a descending pipe 9, an ascending pipe 10 and a water bath 11, wherein the chilling ring 7 is positioned at the joint of the cooling cone part and the descending pipe 9, the pipe diameter of the ascending pipe 10 is larger than that of the descending pipe 9, the ascending pipe 10 is arranged at the outlet of the descending pipe 9, the outlet of the descending pipe 9 is submerged by the water bath 11, and the upper end of the ascending pipe 10 is higher than the water level of the water bath 11. .
As shown in fig. 3, the cooling cone part includes a cooling cone 6 and a water film generating device 5, the water film generating device 5 is located at the top of the cooling cone 6, the cooling cone 6 is an inverted cone structure, the cooling cone 6 includes a cooling water channel 14 and a conical surface 13, the cooling water channel 14 is located outside the conical surface 13, the cooling water channel 14 is used for providing cooling water for the water film generating device 5 and also has a function of cooling the conical surface 13, the water film generating device 5 is used for forming a first water film 17 on the inner surface of the conical surface 13, and the minimum circumferential inner diameter of the water film generating device 5 is larger than the inner diameter of the inner wall of the radiant heat exchange chamber 4 so as to avoid dust accumulation on the water film generating device 5; the height ratio of the cooling cone 6 to the radiant heat exchange chamber 4 is 1/5, and the included angle between the conical surface 13 and the axial direction is 45 degrees.
As shown in fig. 3 and 4, the water film generating device 5 includes a water collecting tank 20 and a water guide plate 19, wherein the bottom of the water collecting tank 20 is provided with a plurality of water outlet holes 21, the water outlet holes 21 are provided with the water guide plate 19, and water from the water collecting tank 20 is guided to the conical surface 13 to form an uninterrupted water film on the conical surface 13. The included angle a between the guide plates 19 and the generatrix of the cooling cone 6 is 30 degrees, the cooling water coming out of the guide plates 19 is in a rotational flow shape, so that the water film can be uniformly distributed on the conical surface 13, and the distribution radius of the water collection tank 20 in the circumferential direction is larger than the inner diameter of the cooling cone 6, so as to ensure that the synthesis gas and the ash slag from the gasification reaction chamber 1 can not fall on the water collection tank 20.
As shown in fig. 2, the cooling water channel inlet 16 is connected to the quench ring 7, the cooling water flows out from the outlet of the quench ring 7 to form a second water film 18 on the surface of the downcomer 9, a water film drainage plate 15 is disposed at the joint of the cooling cone 6 and the quench ring 7, the water film drainage plate 15 is used for enabling the first water film 17 to flow into the downcomer 9 along the water film drainage plate 15, so as to avoid the first water film 17 and the second water film 18 from merging, the upper portion of the water film drainage plate 15 is a conical surface 13 connected to the cooling cone 6, the lower portion of the water film drainage plate is a cylindrical surface tangent to the quench ring 7, the generatrix of the conical surface 13 at the upper portion of the drainage plate and the axial included angle c are provided, the generatrix of the conical surface 13 of the cooling.
The specific working process is as follows: coal powder and a gasifying agent enter the gasification furnace from the burner, synthesis gas and ash are generated after incomplete combustion in the gasification reaction chamber 1, part of the ash adheres to the inner wall of the gasification reaction chamber 1, and part of the ash enters the radiation heat exchange chamber 4 through the rectification section 2 along with the discharge of the synthesis gas from the gasification reaction chamber 1, and enters the cooling cone part after heat exchange on the water-cooling wall part 3; cooling water enters a cooling water channel inlet 16, a part of cooling water enters a cooling water channel 14 and then reaches the water film generation device 5, a first water film 17 is formed on the conical surface 13, the other part of cooling water flows out from an outlet at the lower part of the chilling ring 7, and a second water film 18 is formed on the surface of the descending pipe 9; the first water film 17 isolates high-temperature synthesis gas and ash from the conical surface 13, so that the effects of avoiding high-temperature ablation and reducing ash deposition are achieved; ash particles falling to the first water film 17 will follow the first water film 17 into the downcomer 9; the ash slag is cooled rapidly in cooling water and then leaves from an ash slag outlet 12 at the bottom of the gasification furnace, and the synthetic gas enters a water bath 11 for cooling, passes through a riser 10 and then leaves the gasification furnace through a synthetic gas outlet 8.
It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
Claims (10)
1. A semi-fryer gasification apparatus for reducing ash buildup and burn-out, comprising: the gasification reaction chamber (1), the rectification section (2), the radiation heat exchange chamber (4) and the chilling chamber are sequentially connected from top to bottom; the gasification reaction chamber (1) is used for gasifying coal to obtain synthesis gas and ash; the rectifying section (2) is used for reducing the speed fluctuation of the synthesis gas and the ash so as not to impact the inner wall of the radiation heat exchange chamber (4); the radiation heat exchange chamber (4) comprises a water-cooling wall part (3) positioned in the radiation heat exchange chamber (4) and a cooling cone part positioned at the lower part of the radiation heat exchange chamber (4).
2. The semi-waste pot gasification equipment for reducing ash deposition and ablation according to claim 1, wherein the chilling chamber comprises a chilling ring (7), a descending pipe (9), a rising pipe (10) and a water bath (11), the chilling ring (7) is positioned at the joint of the cooling cone and the descending pipe (9), the diameter of the rising pipe (10) is larger than that of the descending pipe (9), the rising pipe (10) is arranged at the outlet of the descending pipe (9), the outlet of the descending pipe (9) is submerged by the water bath (11), and the upper end of the rising pipe (10) is higher than the level of the water bath (11).
3. The semi-used boiler gasification equipment for reducing ash deposition and ablation according to any one of claims 1 or 2, wherein the cooling cone part comprises a cooling cone (6), a water film generating device (5), the water film generating device (5) is positioned at the top of the cooling cone (6), the cooling cone (6) is of an inverted cone structure, the cooling cone (6) comprises a cooling water channel (14) and a conical surface (13), the cooling water channel (14) is arranged outside the conical surface (13), the cooling water channel (14) is used for supplying cooling water for the water film generating device (5), and the water film generating device (5) is used for forming a first water film (17) on the inner surface of the conical surface (13).
4. Semi-spent pot gasification plant with reduced ash deposition and ablation according to claim 3, characterized in that the ratio of the height of the cooling cone (6) to the height of the radiant heat exchange chamber (4) is 1/2 to 1/8; the included angle between the conical surface (13) and the axial direction is 20-50 degrees.
5. The semi-used boiler gasification equipment for reducing ash deposition and ablation according to claim 4, wherein the water film generating device (5) is a spray nozzle and is arranged at the outlet of the cooling water channel (14).
6. The semi-waste boiler gasification equipment for reducing ash deposition and ablation according to claim 4, wherein the water film generation device (5) comprises a water collection tank (20) and a flow guide plate (19), the bottom of the water collection tank (20) is provided with a plurality of water outlet holes (21), and the flow guide plate (19) is arranged at the water outlet holes (21).
7. The semi-spent pot gasification equipment with reduced ash deposition and ablation according to any one of claims 5 or 6, characterized in that the cooling water channel inlet (16) is connected with the quench ring (7), and the cooling water flows out from the quench ring (7) outlet to form a second water film (18) on the surface of the downcomer (9).
8. The semi-waste boiler gasification equipment for reducing soot deposition and ablation according to claim 7, wherein a water film flow guide plate (15) is arranged at the joint of the cooling cone (6) and the chilling ring (7), and the water film flow guide plate (15) is used for guiding the first water film (17) to flow into the downcomer (9) along the water film flow guide plate (15) so as to avoid the first water film (17) and the second water film (18) from merging.
9. The semi-waste pot gasification equipment for reducing ash deposition and ablation according to claim 8, wherein the upper part of the water film flow guide plate (15) is a conical surface (13) connected with the cooling cone (6), the lower part of the water film flow guide plate is a cylindrical surface tangent to the chilling ring (7), the generatrix of the conical surface (13) on the upper part of the flow guide plate forms an axial included angle c, the generatrix of the conical surface (13) of the cooling cone (6) forms an axial included angle b, and the value of c is equal to b.
10. A method for using the semi-waste pot gasification equipment according to any one of the claims 1-9, characterized in that the coal powder and gasifying agent are burned in the gasification reaction chamber (1) to produce synthesis gas and ash, the synthesis gas and ash are introduced into the radiation heat exchange chamber (4) through the rectifying section (2), and are introduced into the cooling cone part after heat exchange in the water-cooling wall part (3); cooling water enters a cooling water channel inlet (16), a part of cooling water enters a cooling water channel (14) and then reaches a water film generating device (5), a first water film (17) is formed on the conical surface (13), the other part of cooling water flows out from an outlet at the lower part of the chilling ring (7), and a second water film (18) is formed on the surface of the descending pipe (9); the first water film (17) isolates high-temperature synthesis gas and ash from the conical surface (13), so that the effects of avoiding high-temperature ablation and reducing ash deposition are achieved; ash particles falling to the first water film (17) enter the downcomer (9) along with the first water film (17); the ash slag is rapidly cooled in cooling water and then leaves from an ash slag outlet (12) at the bottom of the gasification furnace, and the synthetic gas enters a water bath (11) for cooling, passes through a riser (10) and then leaves the gasification furnace through a synthetic gas outlet (8).
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| CN202110464707.8A CN113046133B (en) | 2021-04-28 | 2021-04-28 | A semi-waste boiler gasification device for reducing ash accumulation and ablation and a method of using the same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110464707.8A CN113046133B (en) | 2021-04-28 | 2021-04-28 | A semi-waste boiler gasification device for reducing ash accumulation and ablation and a method of using the same |
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| CN113046133A true CN113046133A (en) | 2021-06-29 |
| CN113046133B CN113046133B (en) | 2025-04-15 |
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| CN108410510A (en) * | 2018-06-11 | 2018-08-17 | 宁夏神耀科技有限责任公司 | A kind of useless pot ash disposal Unitary coal gasification furnace |
| CN110194971A (en) * | 2019-07-12 | 2019-09-03 | 陕西德信祥能源科技有限公司 | A kind of coal gasification couples the gasification furnace and gasification process of two-tube screen radiation waste pot |
| CN214735580U (en) * | 2021-04-28 | 2021-11-16 | 北京航天迈未科技有限公司 | Semi-waste pot gasification equipment capable of reducing dust deposition and ablation |
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2021
- 2021-04-28 CN CN202110464707.8A patent/CN113046133B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108102719A (en) * | 2018-01-02 | 2018-06-01 | 神华集团有限责任公司 | A kind of gasification furnace for preventing slagging and thermal energy high efficiente callback |
| CN108342223A (en) * | 2018-03-23 | 2018-07-31 | 宁夏神耀科技有限责任公司 | A kind of useless pot ash disposal integral type dry coal powder gasification device |
| CN108410510A (en) * | 2018-06-11 | 2018-08-17 | 宁夏神耀科技有限责任公司 | A kind of useless pot ash disposal Unitary coal gasification furnace |
| CN110194971A (en) * | 2019-07-12 | 2019-09-03 | 陕西德信祥能源科技有限公司 | A kind of coal gasification couples the gasification furnace and gasification process of two-tube screen radiation waste pot |
| CN214735580U (en) * | 2021-04-28 | 2021-11-16 | 北京航天迈未科技有限公司 | Semi-waste pot gasification equipment capable of reducing dust deposition and ablation |
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