CN1850949A - Gas-flowbed powdercoal gasifying apparatus with precombustion chamber - Google Patents
Gas-flowbed powdercoal gasifying apparatus with precombustion chamber Download PDFInfo
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- CN1850949A CN1850949A CN 200610046592 CN200610046592A CN1850949A CN 1850949 A CN1850949 A CN 1850949A CN 200610046592 CN200610046592 CN 200610046592 CN 200610046592 A CN200610046592 A CN 200610046592A CN 1850949 A CN1850949 A CN 1850949A
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- vaporizer
- precombustion chamber
- gas
- cooled cavity
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
- Y02E20/18—Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]
Abstract
The invention relates to an air stream bed coal fines gasifier containing pre-firing room. It is made up of sealing cover, gas outlet pipe, vaporizer upper air exit, vaporizer down air exit, slag outlet, pre-firing room air intake pipe, coal powder transferring pipeline, pre-firing room bellows, refractory material layer, and vaporizer water cooling cavity. The device has the advantages of simple device, reliable performance, low cost, energy saving, high intension, high efficiency, etc.
Description
Technical field: the present invention relates to the novel a kind of air flow bed coal dust gasification device that has burn-off chamber in the industrial gas stove industry.
Problems such as background technology: at present, the burning in the industrial gas stove industry both at home and abroad consumes a large amount of energy, and usually, coal gasification is based on fixed bed, fluidized-bed process, but exists gasification intensity little, and it is poor that coal is adapted to, and gasification efficiency is low; Pressurization dry-powder air-current bed process can address the above problem, but because the increase of vaporizer internal pressure, whole plant has brought the complicated of coal gasification apparatus to very strictness of the seal request high temperature (1400～1700 ℃) under, and problem such as cost an arm and a leg.Therefore develop a kind of air flow bed coal dust gasification device that has precombustion chamber is the scientific research task that expectation solves always.
The purpose of this invention is to provide a kind ofly conceive the science novelty, technology is easy to manufacture, equipment is simple, cost is low, easy to operate, safeguard simple, overcome problem that existing air flow bed coal dust gasification technology exists, kept the following gasification characteristics of existing dry-powder air-current bed high temperature, a kind of air flow bed coal dust gasification device that has precombustion chamber of the high gasification intensity of realization and high gasification efficiency under normal pressure.
Summary of the invention: the object of the present invention is achieved like this: whole device is by sealing cover, the gas exit pipeline, exhaust outlet on the vaporizer, exhaust outlet under the vaporizer, slag-drip opening, the precombustion chamber blast pipe, power transportation pipe, the precombustion chamber bellows, refractory masses, vaporizer water-cooled cavity is formed, in vaporizer water-cooled cavity, adorn refractory masses, the gas outlet conduit of coalingging on vaporizer water-cooled cavity top, exhaust outlet on the dress vaporizer of the right middle and lower part of vaporizer water-cooled cavity, exhaust outlet under the vaporizer, at vaporizer water-cooled cavity bottom dress slag-drip opening, at middle and lower part, vaporizer water-cooled cavity left side dress precombustion chamber blast pipe, the precombustion chamber power transportation pipe, the precombustion chamber bellows are at vaporizer waterway body dress sealing cover; For keeping the higher gasification temperature of vaporizer, increased precombustion chamber, because the temperature in it is up to 1200～1600 ℃, coal dust makes its rapidly experience preheating, expansion, pyrolysis devolatilization branch, but owing to the oxygen-rich air quantity not sufficient that enters by the precombustion chamber air port, coal dust can only carry out incomplete combustion; Unburned burnt grain and the gas that is produced are heated to 1200～1600 ℃, enter into vaporizer, under the vaporized chemical effect that upper and lower two exhaust outlets enter by vaporizer, for the helical movement, gas velocity can reach 20～40m/S, burnt grain mixes with vaporized chemical, and finishes gasification in 1～2 second.Main points of the present invention are its structure and principle.Its principle of work is: coal dust is delivered to the precombustion chamber by power transportation pipe, at high temperature mix with the oxygen-rich air that enters by the precombustion chamber air port, the reaction of generation incomplete combustion, the high-temperature gas that it produced is being carried the burnt grain of red-hot not combustion secretly and is being entered into vaporizer, under the effect of vaporized chemical, the generating gasification reaction.Gasification temperature in the vaporizer is realized by the incomplete combustion degree of control precombustion chamber.Lime-ash after the gasification is the melting state under the vaporizer action of high temperature, be deposited to the bottom of vaporizer, discharges by slag-drip opening.The coal gas of high temperature that obtains moves up along vaporizer, enters into cooling section, to reduce gas temperature (not being higher than 1000 ℃), is discharged the subsequent disposal operation that enters coal gas at last by the gas exit pipeline.In the device of the present utility model, precombustion chamber and the gasification room temp up to more than 1400 ℃, so adopted the water cooling wall structure; Be not subjected to the erosion of pyritous gas what inwall adopted refractory masses with further protection water wall, can secularly move with assurance equipment.A kind of air flow bed coal dust gasification device that has precombustion chamber compared with prior art has design science novelty, technology is easy to manufacture, applied widely, equipment is simple, reliable, cost value is cheap, be sparing in the use of coal, make full use of existing resource, can realize being widely used in advantages such as coal dust high strength, high efficiency gasification in the industries such as the energy, chemical industry, boiler under normal pressure, high temperature.
Description of drawings: concrete structure of the present invention is provided by following examples and accompanying drawing thereof.
Fig. 1 is a front view of the present invention.
Fig. 2 is the A-A echelon sectional view of Fig. 1.
Fig. 3 is a vertical view of the present invention.
Embodiment:
Whole device is by sealing cover 1, gas exit pipeline 2, exhaust outlet 3 on the vaporizer, exhaust outlet 4 under the vaporizer, slag-drip opening 5, precombustion chamber blast pipe 6, power transportation pipe 7, precombustion chamber bellows 8, refractory masses 9, vaporizer water-cooled cavity 10 is formed, dress refractory masses 9 in vaporizer water-cooled cavity 10, the gas outlet conduit 2 of coalingging on vaporizer water-cooled cavity 10 tops, exhaust outlet 3 on vaporizer water-cooled cavity 10 right middle and lower part dress vaporizers, exhaust outlet 4 under the vaporizer, at vaporizer water-cooled cavity 10 bottoms dress slag-drip opening 5, at vaporizer water-cooled cavity 10 left middle and lower part dress precombustion chamber blast pipes 6, precombustion chamber power transportation pipe 7, precombustion chamber bellows 8 are at 10 dresses of vaporizer water-cooled cavity sealing cover 1; For keeping the higher gasification temperature of vaporizer, increased precombustion chamber, because the temperature in it is up to 1200～1600 ℃, coal dust makes its rapidly experience preheating, expansion, pyrolysis devolatilization branch, but owing to the oxygen-rich air quantity not sufficient that enters by the precombustion chamber air port, coal dust can only carry out incomplete combustion; Unburned burnt grain and the gas that is produced are heated to 1200～1600 ℃, enter into vaporizer, under the vaporized chemical effect that upper and lower two exhaust outlets enter by vaporizer, for the helical movement, gas velocity can reach 20～40m/s, burnt grain mixes with vaporized chemical, and finishes gasification in 1～2 second.
Claims (2)
1, a kind of air flow bed coal dust gasification device that has precombustion chamber, whole device is by sealing cover, the gas exit pipeline, exhaust outlet on the vaporizer, exhaust outlet under the vaporizer, slag-drip opening, the precombustion chamber blast pipe, power transportation pipe, the precombustion chamber bellows, refractory masses, vaporizer water-cooled cavity is formed, it is characterized in that: in vaporizer water-cooled cavity, adorn refractory masses, the gas outlet conduit of coalingging on vaporizer water-cooled cavity top, exhaust outlet on the dress vaporizer of the right middle and lower part of vaporizer water-cooled cavity, exhaust outlet under the vaporizer, at vaporizer water-cooled cavity bottom dress slag-drip opening, at middle and lower part, vaporizer water-cooled cavity left side dress precombustion chamber blast pipe, the precombustion chamber power transportation pipe, the precombustion chamber bellows are at vaporizer waterway body dress sealing cover.
2, a kind of air flow bed coal dust gasification device that has precombustion chamber according to claim 1, it is characterized in that: for keeping the higher gasification temperature of vaporizer, increased precombustion chamber, because the temperature in it is up to 1200～1600 ℃, coal dust makes its experience preheating rapidly, expansion, pyrolysis devolatilization branch, but owing to the oxygen-rich air quantity not sufficient that enters by the precombustion chamber air port, coal dust can only carry out incomplete combustion; Unburned burnt grain and the gas that is produced are heated to 1200～1600 ℃, enter into vaporizer, under the vaporized chemical effect that upper and lower two exhaust outlets enter by vaporizer, for the helical movement, gas velocity can reach 20～40m/s, burnt grain mixes with vaporized chemical, and finishes gasification in 1～2 second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610046592 CN1850949A (en) | 2006-05-18 | 2006-05-18 | Gas-flowbed powdercoal gasifying apparatus with precombustion chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610046592 CN1850949A (en) | 2006-05-18 | 2006-05-18 | Gas-flowbed powdercoal gasifying apparatus with precombustion chamber |
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| CN1850949A true CN1850949A (en) | 2006-10-25 |
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| CN 200610046592 Pending CN1850949A (en) | 2006-05-18 | 2006-05-18 | Gas-flowbed powdercoal gasifying apparatus with precombustion chamber |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103320172A (en) * | 2012-03-23 | 2013-09-25 | 王庆 | Water wall coal water slurry gasifier provided with plurality of ignition furnace heads |
| CN103320171A (en) * | 2012-03-23 | 2013-09-25 | 王庆 | Water wall coal water slurry gasifier provided with ignition furnace head and gasification technologies thereof |
| CN104561424A (en) * | 2014-12-12 | 2015-04-29 | 章雷 | Coal stove for external coal firing smelting reduction process of titanium-containing iron ores |
| CN104974796A (en) * | 2015-07-07 | 2015-10-14 | 杭州全合科技有限公司 | Two-stage type entrained flow gasification furnace |
| WO2018149061A1 (en) * | 2017-02-20 | 2018-08-23 | 中科聚信洁能热锻装备研发股份有限公司 | Gasification agent mixing and pre-combustion technique and device |
-
2006
- 2006-05-18 CN CN 200610046592 patent/CN1850949A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103320172A (en) * | 2012-03-23 | 2013-09-25 | 王庆 | Water wall coal water slurry gasifier provided with plurality of ignition furnace heads |
| CN103320171A (en) * | 2012-03-23 | 2013-09-25 | 王庆 | Water wall coal water slurry gasifier provided with ignition furnace head and gasification technologies thereof |
| CN104561424A (en) * | 2014-12-12 | 2015-04-29 | 章雷 | Coal stove for external coal firing smelting reduction process of titanium-containing iron ores |
| CN104561424B (en) * | 2014-12-12 | 2016-06-15 | 章雷 | The outer coal-fired smelting reduction process coal furnace of a kind of titanium-containing iron ore |
| CN104974796A (en) * | 2015-07-07 | 2015-10-14 | 杭州全合科技有限公司 | Two-stage type entrained flow gasification furnace |
| WO2018149061A1 (en) * | 2017-02-20 | 2018-08-23 | 中科聚信洁能热锻装备研发股份有限公司 | Gasification agent mixing and pre-combustion technique and device |
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Open date: 20061025 |