CN113637500A - Low-ash carbon substance gasification furnace - Google Patents
Low-ash carbon substance gasification furnace Download PDFInfo
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- CN113637500A CN113637500A CN202111000007.XA CN202111000007A CN113637500A CN 113637500 A CN113637500 A CN 113637500A CN 202111000007 A CN202111000007 A CN 202111000007A CN 113637500 A CN113637500 A CN 113637500A
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- 238000002309 gasification Methods 0.000 title claims abstract description 52
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 239000000126 substance Substances 0.000 title claims abstract description 25
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 24
- 239000002893 slag Substances 0.000 claims abstract description 46
- 238000001816 cooling Methods 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 239000011449 brick Substances 0.000 claims description 14
- 238000009413 insulation Methods 0.000 claims description 7
- 239000010866 blackwater Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 238000010791 quenching Methods 0.000 claims description 4
- 238000011084 recovery Methods 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims 1
- 238000005336 cracking Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 23
- 230000015572 biosynthetic process Effects 0.000 description 15
- 238000003786 synthesis reaction Methods 0.000 description 15
- 229920006395 saturated elastomer Polymers 0.000 description 4
- 230000005587 bubbling Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
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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
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
- C10J3/50—Fuel charging devices
-
- 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
- C10J3/52—Ash-removing devices
-
- 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
-
- 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
- C10J3/74—Construction of shells or jackets
- C10J3/76—Water jackets; Steam boiler-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
- C10J2200/00—Details of gasification apparatus
- C10J2200/15—Details of feeding means
- C10J2200/152—Nozzles or lances for introducing gas, liquids or suspensions
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention discloses a low ash content carbon substance gasification furnace, which comprises: the water-cooling furnace comprises a shell, a water-cooling descending cylinder, a burner and a slag hole coil, wherein the water-cooling descending cylinder is arranged in the middle of the shell through an annular hanging plate, the slag hole coil is arranged on a radial extension surface at the top of the water-cooling descending cylinder, a gasification chamber is formed in the cavity inside the shell at the upper part of the annular hanging plate, a chilling chamber is formed in the cavity inside the shell at the lower part of the annular hanging plate, and the burner is arranged at the top of the shell. The invention solves the problems of hidden danger and easy deformation and cracking of the existing gasifier design.
Description
Technical Field
The invention relates to the technical field of chemical industry, in particular to a low-ash carbon substance gasification furnace.
Background
Since a gasification furnace using low ash carbon substances such as heavy oil and coke breeze as a raw material cannot form a slag layer in the gasification chamber to generate sufficient thermal resistance, a refractory brick is generally used as a heat insulating layer.
The limitation that resistant firebrick is as the insulating layer is in that the slag notch brick is changed comparatively frequently, and in order to improve the component of the gasifier product active gas, need strengthen the back mixing of residual oil in the combustion chamber, this must need reduce the slag notch size in order to increase the slag notch pressure drop, but has led to slag notch department high temperature crude synthesis gas velocity of flow too high like this, has more accelerated the wearing and tearing of awl end brick for the performance promotion of traditional gasifier meets the bottleneck.
Chilling water of the traditional gasification furnace is added in the descending cylinder, so that the temperature of the high-temperature synthesis gas is reduced to a temperature which can be borne by the descending cylinder, and thus the high-level heat energy of the crude synthesis gas is inevitably lost. Meanwhile, the hidden trouble of uneven water film distribution or uneven atomization exists in the mode of spraying water in the descending cylinder, so that the temperature difference stress of the descending pipe is overlarge and serious deformation or cracking occurs.
Disclosure of Invention
Therefore, the invention provides a low-ash carbon substance gasification furnace, which aims to solve the problems of hidden danger and easy deformation and cracking of the existing gasification furnace design.
In order to achieve the above purpose, the invention provides the following technical scheme:
the invention discloses a low ash content carbon substance gasification furnace, which comprises: the water-cooling furnace comprises a shell, a water-cooling descending cylinder, a burner and a slag hole coil, wherein the water-cooling descending cylinder is arranged in the middle of the shell through an annular hanging plate, the slag hole coil is arranged on a radial extension surface at the top of the water-cooling descending cylinder, a gasification chamber is formed in the cavity inside the shell at the upper part of the annular hanging plate, a chilling chamber is formed in the cavity inside the shell at the lower part of the annular hanging plate, and the burner is arranged at the top of the shell.
Furthermore, the outer ring of the annular hanging plate is connected with the inside of the shell, a refractory brick heat insulation layer is arranged on the inner wall of the shell above the annular hanging plate, and a containing cavity formed by the refractory brick heat insulation layer is a gasification chamber.
Furthermore, a burner coil is installed at the top of the gasification chamber, the burner penetrates through the shell and the burner coil and extends into the gasification chamber, a plurality of burners are arranged, and the bottom of the gasification chamber forms a slag outlet through a slag outlet coil.
Further, the containing cavity in the water-cooling descending cylinder forms a heat recovery chamber, and the water-cooling descending cylinder is formed by circumferentially surrounding a plurality of vertical fin tubes.
Furthermore, an upper collecting box is arranged at the top of the water-cooling descending cylinder, a lower collecting box is arranged at the bottom of the water-cooling descending cylinder and is immersed below the liquid level of the chilling chamber, and the water-cooling descending cylinder, the upper collecting box and the lower collecting box form a membrane type water-cooling wall.
Further, the radial extension surface at the top of the water-cooling descending cylinder is a circular surface or a conical surface.
Further, a chilling water inlet, a synthetic gas outlet and a black water outlet are arranged on the side wall of the chilling chamber.
Further, the chilling water introduced from the chilling water inlet is directionally sprayed to the outer side of the water-cooled downcomer.
Furthermore, the top of the slag notch coil pipe is closed into an elliptical shape, and the diameter of the upper end of the slag notch coil pipe is smaller than that of the lower end of the slag notch coil pipe.
Further, the distance between the center line of the upper end of the slag notch coil pipe and the center line of the shell is more than 100 mm.
The invention has the following advantages:
the invention discloses a low-ash carbon substance gasification furnace, wherein a slag hole coil is arranged at a slag hole at the bottom of a gasification chamber, and cooling water is used for protecting the slag hole coil, so that the overhaul work of replacing slag hole bricks can be avoided, and the service life of nearby cone bottom rotation is prolonged. The pressure drop at the slag hole is not limited by the bearing flow rate of the refractory bricks, the back-mixing entrainment of carbon substances in the gasification chamber is effectively enhanced, the effective gas components of the gasification furnace are improved, and the performance of the gasification furnace is greatly improved. The water-cooling descending cylinder can effectively utilize high-level heat energy of the crude synthesis gas to produce a byproduct of saturated steam, is used for a later working section or power generation, and is energy-saving and environment-friendly. Meanwhile, potential safety hazards do not exist, and the essence is safer.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
Fig. 1 is a schematic structural diagram of a low-ash carbon substance gasification furnace according to an embodiment of the present invention;
FIG. 2 is a schematic view of a water-cooled descending cylinder of a low ash content carbon material gasification furnace according to an embodiment of the present invention;
FIG. 3 is a schematic view of another water-cooled descent drum provided in accordance with an embodiment of the present invention;
in the figure: 100-gasification furnace, 2-water-cooling descending cylinder, 3-shell, 4-burner, 5-slag hole coil, 6-annular hanger plate, 7-refractory brick heat insulation layer, 8-extension surface, 9-burner coil, 10-gasification chamber, 20-heat recovery chamber, 21-upper header, 22-lower header, 30-chilling chamber, 31-synthetic gas outlet, 33-black water outlet and 34-chilling water inlet.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1 to 3, the present embodiment discloses a low ash carbon substance gasification furnace 100, the low ash carbon substance gasification furnace 100 including: the device comprises a shell 3, a water-cooling descending cylinder 2, a burner 4 and a slag notch coil pipe 5, wherein the water-cooling descending cylinder 2 is arranged in the middle of the shell 3 through an annular hanging plate 6, the slag notch coil pipe 5 is arranged on a radial extension surface 8 at the top of the water-cooling descending cylinder 2, a gasification chamber 10 is formed in a cavity inside the shell 3 on the upper portion of the annular hanging plate 6, a chilling chamber 30 is formed in a cavity inside the shell 3 on the lower portion of the annular hanging plate 6, and the burner 4 is arranged at the top of the shell 3.
The outer ring of the annular hanging plate 6 is connected with the inside of the shell 3, a refractory brick heat insulation layer 7 is arranged on the inner wall of the shell 3 above the annular hanging plate 6, and a containing cavity formed by the refractory brick heat insulation layer 7 is a gasification chamber 10.
The burner coil 4 is installed at the top of the gasification chamber 10, so that the environmental temperature born by the burner 4 is reduced, and the service life of the burner 4 can be prolonged. The burner 4 passes through the shell 3 and the burner coil 4 and stretches into the gasification chamber 10, the burner 4 is provided with a plurality of burners, and the number of the burners 4 can be reasonably set according to the amount of the carbon substances and the types of the carbon substances. The bottom of the gasification chamber 10 forms a slag hole through a slag hole coil pipe 5. The slag hole at the lower part of the gasification chamber 10 is contacted with the slag hole coil pipe 5. The slag hole coil pipe 5 is protected by cooling water, so that the maintenance work of replacing slag hole bricks can be avoided, and meanwhile, the service life of nearby conical bottom rotation is prolonged. The pressure drop at the slag hole is not limited by the bearing flow rate of the refractory bricks, the back-mixing entrainment of carbon substances in the gasification chamber 10 is effectively enhanced, the effective gas components of the gasification furnace 100 are improved, and the performance of the gasification furnace 100 is greatly improved. And the arrangement of the water-cooling descending cylinder 2 can effectively utilize the high-level heat energy of the crude synthesis gas to produce a byproduct of saturated steam, and the saturated steam is used for a rear section or power generation, so that the energy-saving and environment-friendly effects are achieved. Meanwhile, potential safety hazards do not exist, and the essence is safer.
The accommodating cavity inside the water-cooled descending cylinder 2 forms a heat recovery chamber 20, and the water-cooled descending cylinder 2 is formed by circumferentially surrounding a plurality of vertical finned tubes. The vertical finned tube can reduce the flow resistance of boiler water in the water-cooling descending cylinder 2, and the water-cooling descending cylinder 2 realizes natural circulation in power failure or other accident states, thereby ensuring the intrinsic safety of equipment.
The top of a water-cooling decline section of thick bamboo 2 is provided with collection case 21, a water-cooling decline section of thick bamboo 2 bottom is provided with down collection case 22, and lower collection case 22 lower extreme is connected with the baffling guide cylinder that the steel sheet was rolled up, and the submergence is below 30 liquid levels in chilling chamber, and baffling guide cylinder can be with the leading-in darker of gas down, increases the baffling height of gas, reduces thick synthesizer area ash. The water-cooled descent drum 2, the upper header 21 and the lower header 22 constitute a membrane water-cooled wall. Meanwhile, the bubbles generated by baffling the bubbling of the crude synthesis gas at the tail end of the water-cooling descending cylinder 2 are prevented from bursting at the lower header 22, and a safer working environment is provided for the lower header 22.
The radial extension surface 8 at the top of the water-cooling descending cylinder 2 is a circular surface or a conical surface, and the form of the extension surface 8 is determined according to the diameter of the hearth of the gasification furnace 100 and the connection form of the water-cooling descending cylinder 2 and the annular hanging plate 6.
The side wall of the quench chamber 30 is provided with a quench water inlet 34, a syngas outlet 31 and a black water outlet 33.
The chilling water introduced from the chilling water inlet 34 is directionally sprayed to the outer side of the water-cooled downcomer, and the chilling water mainly has the functions of breaking large bubbles generated by bubbling of crude synthesis gas, helping to stabilize the liquid level of the chilling chamber 30 and enhancing the submerged washing function of the chilling chamber 30.
The top of the slag hole coil pipe 5 is closed into an elliptical shape, and the diameter of the upper end of the slag hole coil pipe is smaller than that of the lower end of the slag hole coil pipe. In order to meet the requirement that the slag hole of the gasification chamber 10 has proper pressure drop, the closing-up size of the upper end of the slag hole coil pipe 5 can be simply constructed and transformed according to the production load of the gasification furnace 100, and the performance index of the gasification furnace 100 can be ensured.
The distance between the center line of the upper end of the slag hole coil pipe 5 and the center line of the shell 3 is more than 100 mm. The entrainment rate of the carbon-containing substances with lower activation energy along with the crude synthesis gas at the outlet is increased, so that the effective gas components can be improved, and the carbon residue can be reduced.
Example 2
The embodiment discloses a working process of an ash carbon substance gasification furnace 100: the low ash content carbon substance, water vapor (or water slurry) and oxygen are taken as raw materials of gasification reaction and are sprayed into a gasification chamber 10 through a burner 4, and coupled gasification reaction is carried out at the temperature of more than 1200 ℃ to generate crude synthesis gas mainly comprising carbon monoxide and hydrogen. The high-temperature raw synthesis gas generated by the gasification chamber 10 enters the water-cooling descending cylinder 2 through the slag notch coil 5, and the sensible heat of the high-temperature raw synthesis gas is recovered in the form of saturated steam. The raw synthesis gas and the condensed slag are separated by water bath bubbling, the synthesis gas is upwards sent to a rear working section for use through a synthesis gas outlet 31, and black water with high solid content under the liquid level is discharged out of a chilling chamber 30 through a black water outlet 33 so as to maintain the low solid content of a water area and ensure the washing effect of the synthesis gas.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. A low-ash carbon substance gasifier, comprising: the water-cooling furnace comprises a shell, a water-cooling descending cylinder, a burner and a slag hole coil, wherein the water-cooling descending cylinder is arranged in the middle of the shell through an annular hanging plate, the slag hole coil is arranged on a radial extension surface at the top of the water-cooling descending cylinder, a gasification chamber is formed in the cavity inside the shell at the upper part of the annular hanging plate, a chilling chamber is formed in the cavity inside the shell at the lower part of the annular hanging plate, and the burner is arranged at the top of the shell.
2. The gasifier of claim 1, wherein the outer ring of the annular hanger plate is connected to the inside of the outer shell, a refractory brick heat insulation layer is disposed on the inner wall of the outer shell above the annular hanger plate, and the receiving cavity formed by the refractory brick heat insulation layer is a gasification chamber.
3. The low-ash carbon substance gasification furnace according to claim 2, wherein a plurality of burners are arranged on the top of the gasification chamber, the burners extend into the gasification chamber through the casing and the burner coil, and a slag outlet is formed in the bottom of the gasification chamber through a slag outlet coil.
4. The gasifier of claim 1, wherein the receiving cavity inside the water-cooled descending cylinder forms a heat recovery chamber, and the water-cooled descending cylinder is circumferentially surrounded by a plurality of vertical finned tubes.
5. The gasifier for gasifying carbon substances with low ash content as claimed in claim 4, wherein the top of said water-cooled descending cylinder is provided with an upper header, the bottom of said water-cooled descending cylinder is provided with a lower header, and the water-cooled descending cylinder, the upper header and the lower header are immersed below the liquid level of the chilling chamber, and the water-cooled descending cylinder, the upper header and the lower header form a membrane water-cooled wall.
6. The gasifier of claim 1, wherein a radial extension surface of a top of the water-cooled descending cylinder is a circular surface or a conical surface.
7. The low-ash carbon substance gasifier of claim 1, wherein a quench water inlet, a syngas outlet and a black water outlet are provided on a sidewall of the quench chamber.
8. The gasifier for low-ash carbon substances according to claim 1, wherein the chilling water introduced from the chilling water inlet is directed to spray outside the water-cooled downcomer.
9. The gasifier of claim 1, wherein the top of the slag hole coil pipe is closed into an elliptical shape, and the diameter of the upper end of the slag hole coil pipe is smaller than that of the lower end of the slag hole coil pipe.
10. The low-ash carbon substance gasification furnace according to claim 1, wherein the distance between the center line of the upper end of the slag hole coil and the center line of the shell is more than 100 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111000007.XA CN113637500A (en) | 2021-08-27 | 2021-08-27 | Low-ash carbon substance gasification furnace |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111000007.XA CN113637500A (en) | 2021-08-27 | 2021-08-27 | Low-ash carbon substance gasification furnace |
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| CN113637500A true CN113637500A (en) | 2021-11-12 |
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| CN202111000007.XA Pending CN113637500A (en) | 2021-08-27 | 2021-08-27 | Low-ash carbon substance gasification furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114196443A (en) * | 2021-12-30 | 2022-03-18 | 北京清创晋华科技有限公司 | Gasification furnace |
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| GB8527135D0 (en) * | 1985-11-04 | 1985-12-11 | Pinewood Energy Ltd | Thermal reactor |
| CN101328434A (en) * | 2008-07-17 | 2008-12-24 | 中国科学技术大学 | A dry coal powder entrained bed gasifier |
| WO2012101194A1 (en) * | 2011-01-28 | 2012-08-02 | Shell Internationale Research Maatschappij B.V. | Gasification reactor |
| CN104513676A (en) * | 2014-12-25 | 2015-04-15 | 清华大学 | Gasification furnace capable of gasifying coal with high ash fusion point |
| CN207596795U (en) * | 2017-09-26 | 2018-07-10 | 聊城市鲁西化工工程设计有限责任公司 | A kind of cooling connection structure between vaporizer and shock chamber |
| CN209685712U (en) * | 2018-12-12 | 2019-11-26 | 通用电气神华气化技术有限公司 | A kind of water-cooling wall refractory brick convolution gasification installation |
| CN111647443A (en) * | 2020-05-27 | 2020-09-11 | 北京清创晋华科技有限公司 | High-temperature coal gas chilling chamber |
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2021
- 2021-08-27 CN CN202111000007.XA patent/CN113637500A/en active Pending
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