CN103045305B - Coal gasification device and process for heating coal water slurry - Google Patents
Coal gasification device and process for heating coal water slurry Download PDFInfo
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- CN103045305B CN103045305B CN201210572642.XA CN201210572642A CN103045305B CN 103045305 B CN103045305 B CN 103045305B CN 201210572642 A CN201210572642 A CN 201210572642A CN 103045305 B CN103045305 B CN 103045305B
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- coal
- water slurry
- coal water
- heating
- interchanger
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The invention provides a coal gasification device and a coal gasification process for heating coal water slurry. A heating coiled pipe and a heat exchanger are added in the device, the step of heating the coal water slurry is added, and heat generated by reaction of water gas and oxygen is replaced by heat of black water generated in the gasification process in the traditional method, so discharge of carbon dioxide can be reduced, and energy conservation and environmental friendliness are realized; the yield of available gases (CO and H2) can be increased, the consumption of the oxygen as well as the production cost is reduced, and certain economic benefit is achieved.
Description
Technical field
The invention belongs to coal chemical technology, be specifically related to a kind of coal gasification apparatus and technique of coal water slurry heating.
Background technology
Coal water slurry gasification technique is the gasifying process that a kind of technology is comparatively ripe, due in coal water slurry gasification technique, the coal water slurry of normal temperature is directly reacted with oxygen generating gasification, for guarantee reaction carry out smoothly with ash content melt slag effect, vapourizing furnace must keep certain furnace temperature.In traditional technology, by consuming water-gas (main effective constituent is CO, H2), maintain gasifier temperature with the thermopositive reaction of oxygen, can consume so more water-gas and and oxygen, make the energy consumption of this technique higher
Summary of the invention
The coal gasifying process that the object of this invention is to provide a kind of coal water slurry heating, utilizes the heat in the Heisui River producing after gasification to heat coal water slurry, improves into vapourizing furnace coal water slurry temperature, guaranteeing can to save energy consumption on same furnace temperature basis, produces economic benefit.
The object of the present invention is achieved like this: a kind of coal gasification apparatus of coal water slurry heating, comprise coal water slurry storage tank and vapourizing furnace, the top of vapourizing furnace is vaporizer, bottom is shock chamber, in shock chamber, be provided with heat exchange coil, between coal water slurry storage tank and shock chamber, be also provided with interchanger, the discharge port in coal water slurry storage tank connects interchanger, heat exchange coil by pipeline successively, is finally connected to the opening for feed of vaporizer.
Between described coal water slurry storage tank and interchanger, be provided with water-coal slurry pump.
Between described water-coal slurry pump and interchanger, by arm, be connected to coal water slurry storage tank, and arm is provided with valve.
The thermal source import of described interchanger is connected with the discharge port of shock chamber.
A coal gasifying process for coal water slurry heating, concrete steps are:
1) coal water slurry heating, gasification
Coal water slurry in coal water slurry storage tank, through water-coal slurry pump pressure-raising, enters interchanger and carries out heat exchange heating, then enters heat exchange coil and again carries out heat exchange heating, and the coal water slurry after heating enters vaporizer and gasifies;
2) heat recovery process
The Heisui River producing after coal water slurry gasifies in vaporizer enters shock chamber, then by the discharge port of shock chamber, enter the thermal source import of interchanger, Heisui River by with shock chamber in heat exchange coil and the coal water slurry in interchanger carry out heat exchange, complete the heat recovery in Heisui River.
Coal gasification apparatus and the technique of a kind of coal water slurry heating provided by the invention, have following beneficial effect:
1) traditional technology does not have heating steps, and the present invention, by having increased heating steps, is maintaining in same furnace temperature situation, and can increase water-gas available gas (is H
2, CO) output, reduce the consumption of oxygen, can enhance productivity, control and reduce production costs, there is certain economic benefit.
2) due to when heating heat used come from the heat in Heisui River, the temperature in Heisui River is about 250 ℃, replaces the heat of water-gas and oxygen reaction generation with this heat, can reduce the discharge of gas consumption and carbonic acid gas, energy-conserving and environment-protective.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is structural representation of the present invention.
Embodiment
A kind of coal gasification apparatus of coal water slurry heating, comprise coal water slurry storage tank 1 and vapourizing furnace 2, the top of vapourizing furnace 2 is vaporizer 21, bottom is shock chamber 22, in shock chamber 22, be provided with heat exchange coil 3, between coal water slurry storage tank 1 and shock chamber 22, be also provided with interchanger 4, the discharge port in coal water slurry storage tank 1 connects interchanger 4, heat exchange coil 3 by pipeline successively, is finally connected to the opening for feed of vaporizer 21.
Between described coal water slurry storage tank 1 and interchanger 4, be provided with water-coal slurry pump 5.
Between described water-coal slurry pump 5 and interchanger 4, by arm, be connected to coal water slurry storage tank 1, and arm is provided with valve.
The thermal source import of described interchanger 4 is connected with the discharge port of shock chamber 22.
The coal gasification process that utilizes said apparatus to carry out coal water slurry heating, concrete steps are:
1) coal water slurry heating, gasification
Coal water slurry in coal water slurry storage tank 1, through water-coal slurry pump 5 pressure-raisings, enters interchanger 4 and carries out heat exchange heating, then enters heat exchange coil 3 and again carries out heat exchange heating, and the coal water slurry after heating enters vaporizer 21 and gasifies;
2) heat recovery process
The Heisui River producing after coal water slurry gasifies in vaporizer 21 enters shock chamber 22, then by the discharge port of shock chamber 22, enter the thermal source import of interchanger 4, Heisui River by with shock chamber 22 in heat exchange coil 3 and the coal water slurry in interchanger 4 carry out heat exchange, complete the heat recovery in Heisui River.
Claims (2)
1. the coal gasification apparatus of coal water slurry heating, comprise coal water slurry storage tank (1) and vapourizing furnace (2), the top of vapourizing furnace (2) is vaporizer (21), bottom is shock chamber (22), it is characterized in that: in shock chamber (22), be provided with heat exchange coil (3), between coal water slurry storage tank (1) and shock chamber (22), be also provided with interchanger (4), discharge port in coal water slurry storage tank (1) connects interchanger (4), heat exchange coil (3) by pipeline successively, is finally connected to the opening for feed of vaporizer (21); Between described coal water slurry storage tank (1) and interchanger (4), be provided with water-coal slurry pump (5); Between described water-coal slurry pump (5) and interchanger (4), by arm, be connected to coal water slurry storage tank (1), and arm is provided with valve; The thermal source import of described interchanger (4) is connected with the discharge port of shock chamber (22).
2. the coal gasifying process heating by the coal water slurry of installing described in claim 1, is characterized in that concrete steps are:
1) heating, gasification
Coal water slurry in coal water slurry storage tank (1), through water-coal slurry pump (5) pressure-raising, enters interchanger (4) and carries out heat exchange heating, then enters heat exchange coil (3) and again carries out heat exchange heating, and the coal water slurry after heating enters vaporizer (21) and gasifies;
2) heat recovery process
The Heisui River producing after coal water slurry gasifies in vaporizer (21) enters shock chamber (22), then by the discharge port of shock chamber (22), enter the thermal source import of interchanger (4), Heisui River by with shock chamber (22) in heat exchange coil (3) and interchanger (4) in coal water slurry carry out heat exchange, complete the heat recovery in Heisui River.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210572642.XA CN103045305B (en) | 2012-12-26 | 2012-12-26 | Coal gasification device and process for heating coal water slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210572642.XA CN103045305B (en) | 2012-12-26 | 2012-12-26 | Coal gasification device and process for heating coal water slurry |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103045305A CN103045305A (en) | 2013-04-17 |
| CN103045305B true CN103045305B (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210572642.XA Expired - Fee Related CN103045305B (en) | 2012-12-26 | 2012-12-26 | Coal gasification device and process for heating coal water slurry |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103555371B (en) * | 2013-11-15 | 2015-04-08 | 华东理工大学 | Method for improving gasification efficiency of slurry feed gasification device |
| CN109082305A (en) * | 2018-08-28 | 2018-12-25 | 昆山优利德能源技术有限公司 | The integration heating raw material coal water slurry gasification system and technique of heat exchange without phase-change |
| CN109054904A (en) * | 2018-08-28 | 2018-12-21 | 昆山优利德能源技术有限公司 | The Heisui River heating coal water slurry gasification system and technique of heat exchange without phase-change |
| CN109135832A (en) * | 2018-09-25 | 2019-01-04 | 深圳瑞科天启科技有限公司 | A kind of water-coal-slurry gasification method and device recycling carbon black water waste heat |
| CN109722312A (en) * | 2019-02-27 | 2019-05-07 | 中煤陕西榆林能源化工有限公司 | A kind of method of low energy consumption coal water slurry gasification system and heating water-coal-slurry |
| CN110016367A (en) * | 2019-05-13 | 2019-07-16 | 西安交通大学 | A kind of hot feed water-coal-slurry gasification system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3988123A (en) * | 1975-08-15 | 1976-10-26 | The United States Of America As Represented By The United States Energy Research And Development Administration | Gasification of carbonaceous solids |
| US5287915A (en) * | 1990-12-26 | 1994-02-22 | Shell Oil Company | Heat exchanger and method for removing deposits from inner surfaces thereof |
| CN101161792B (en) * | 2007-09-29 | 2010-11-17 | 上海惠生化工工程有限公司 | Heat recovering technique for synthetic gas production process by coal gasification |
| CN101696361B (en) * | 2009-10-30 | 2013-01-02 | 上海锅炉厂有限公司 | High-pressure powdered coal gasifier with back-heating system |
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