CN102417832B - Gasification furnace and method for gasifying molded coal - Google Patents
Gasification furnace and method for gasifying molded coal Download PDFInfo
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- CN102417832B CN102417832B CN201110313851.8A CN201110313851A CN102417832B CN 102417832 B CN102417832 B CN 102417832B CN 201110313851 A CN201110313851 A CN 201110313851A CN 102417832 B CN102417832 B CN 102417832B
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- charcoal layer
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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
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Abstract
The invention relates to a gasification furnace and a method for gasifying molded coal. According to the invention, a plurality of grooves are provided on the inner wall of the hearth of the gasification furnace, the grooves separate the inner wall of hearth from the outer wall of a charcoal layer, and a groove type ascending pipeline is formed; high temperature flames and high temperature gas which have been horizontally sprayed to all the grooves are quenched and cooled in time during heat exchange with the inner wall of a water jacket, the cooled high temperature gas with dust undergoes heat exchange with the wall of the water jacket, the charcoal layer and a fireproof wall along the way during ascending in each groove so as to get further cooled, the dust scatters on the surface of the charcoal layer and in the grooves when the cooled gas is sent out through the ascending pipeline, descending down blow steam in each groove undergoes heat exchange with the wall of the water jacket, the charcoal layer and the fireproof wall along the way, and superheated steam brings the scattered dust in each groove into the charcoal layer for gasification and slagging. The invention enables the phenomenon that molded coal hangs on a wall during gasification to be effectively prevented, the height of a gasification layer to be stabilized, system resistance to be reduced and energy saving and consumption reduction to be realized.
Description
Technical field
The present invention relates to a kind of fixed bed circulation method coal gasification method, the particularly a kind of method of vapourizing furnace and gasification briquette.
Background technology
The fixed bed circulation method coal gasifying process using at present mainly contains two kinds of forms, and a kind of is to take the intermittent gasification method that UGI fixed bed coal gas producer is representative, and another kind is to take two sections of stove cycle gasification methods that IGI is representative.Traditional UGI, IGI producer gas generator intermittent gas preparation technique, can only be used lump coke, anthracite block coal and anthracitic oven dry and air-dry moulded coal etc., rise at double along with lump coke and anthracite block coal price, in much synthetic ammonia, small business is forced to use oven dry and the air-dry moulded coal that price is low, in general, cold extrusion moulded coal need to be equipped with drying plant and dry moulded coal, hot extrusion moulded coal does not need to be equipped with drying plant, the dry type coal but air-dry place that need to be large stretch of and facility be the wind comes from, by contrast, the cost of manufacture of cold extrusion moulded coal is higher than the manufacturing cost of hot extrusion moulded coal, but along with being doubled and redoubled of cost of labor, the original profit margin of hot extrusion moulded coal and cold extrusion moulded coal not only disappears, because abandoning air-dry mode, take drying mode, and make the manufacturing cost of hot extrusion moulded coal higher.Application number is that 200910138231.8 " a kind of take the technology for production of raw-material gas for synthetic ammonia by coal gasification in two stage oven that cold-pressed briquette is raw material " utilizes in burner hearth the part flue gas of drying to dry into stove cold-pressed briquette, realize moulded coal extruding, entered stove and drying course completes continuously, simplified moulded coal making processes, reduced the manufacturing cost of moulded coal, but do not solve type coal gasification wall built-up problem.
Summary of the invention
Technical problem to be solved by this invention is a kind of method of vapourizing furnace and gasification briquette that provides for the defect of prior art, and it has solved type coal gasification wall built-up problem.
For solving the problems of the technologies described above, the technical solution used in the present invention is: it is that inboard wall of burner hearth at vapourizing furnace is provided with a plurality of grooves, groove is separated inboard wall of burner hearth and charcoal layer outer wall, form plough groove type uphill line, level sprays to thermal-flame and the high-temperature gas of each groove, in carrying out heat exchanging process with water jacket inwall, obtain extinguishing in time with cooling, high-temperature gas after cooling carries dust in each groove in uphill process, with water jacket wall on the way, charcoal layer and refractory wall carry out heat exchange, further cooling, when the gas after cooling is sent from uphill line, dust scatters in charcoal layer surface and groove, steam blowing and water jacket wall on the way descending in each groove, charcoal layer and refractory wall carry out heat exchange, superheated vapour is taken back the inner gasification of charcoal layer and slag making the dust scattering in each groove.
Gasification furnace structure of the present invention is: it comprises body of heater, the centre of body of heater is provided with burner hearth, in burner hearth, be provided with charcoal layer, the top of burner hearth is provided with uphill line, body of heater is provided with refractory wall, the bottom of refractory wall is provided with water jacket, it is characterized in that: described inboard wall of burner hearth surrounding is provided with a plurality of grooves, and groove is arranged around burner hearth even circumferential.
Beneficial effect:
1, after charcoal layer height increases, can dry more moulded coal, reclaim more heat, improve coal utilizaton rate, reduce coal consumption;
2, level sprays to thermal-flame and the high-temperature gas of each 900 ℃ of left and right of groove, carrying out in heat exchanging process with water jacket inwall, obtains extinguishing in time with cooling, has effectively solved type coal gasification wall built-up problem;
3, the high-temperature gas after cooling carries dust in each groove in uphill process, with water jacket wall, charcoal layer and refractory wall carry out heat exchange on the way, further cooling, when the gas after cooling is sent from uphill line, most of dust scatters in charcoal layer surface and groove, reduce the wash away dynamics of dust to equipment, the life cycle of extension device;
4, descending in each groove, steam blowing is with water jacket wall, charcoal layer and refractory wall carry out heat exchange on the way, superheated vapour, takes back the inner gasification of charcoal layer and slag making the dust scattering in each groove, directly reclaims the flue dust in groove, improve coal utilizaton rate, reduce coal consumption;
5, each ditch groove depth is inserted charcoal layer inside, has stablized the height of gasification layer, has reduced the resistance of system, and energy conservation and consumption reduction effects is obvious.
Vapourizing furnace inboard wall of burner hearth of the present invention has been covered with groove, groove can be effectively separated inboard wall of burner hearth and charcoal layer outer wall, form a large amount of plough groove type uphill lines, extinguish in time and cooling up thermal-flame and high-temperature gas, the phenomenon that prevents type coal gasification wall built-up occurs, overheated lower steam blowing, directly reclaims the flue dust in groove.Stablize gasification layer height, reduce systemic resistance, energy-saving and cost-reducing.
Accompanying drawing explanation
Fig. 1 is the structure intention of vapourizing furnace of the present invention.
Fig. 2 is that the A-A of Fig. 1 is to sectional view
1-burner hearth 2-uphill line 3-charcoal layer 4-groove 5-refractory wall 6-water jacket
Embodiment
As shown in Figure 1 and Figure 2, gasification furnace structure of the present invention comprises body of heater, the centre of body of heater is provided with burner hearth 1, in burner hearth, be provided with charcoal layer 3, the top of burner hearth 1 is provided with uphill line 2, and body of heater is provided with refractory wall 5, and the bottom of refractory wall 5 is provided with water jacket 6, described inboard wall of burner hearth surrounding is provided with a plurality of grooves 4, and groove 4 is arranged around burner hearth even circumferential.
The inventive method be charcoal layer 3 in the interior gasification of burner hearth 1, burner hearth 1 inwall is covered with groove 4, groove 4 can be effectively separated burner hearth 1 inwall and charcoal layer 3 outer wall, forms a large amount of plough groove type uphill lines; Level sprays to thermal-flame and the high-temperature gas of each 900 ℃ of left and right of groove, carrying out in heat exchanging process with water jacket 6 inwalls, obtains extinguishing in time with cooling; High-temperature gas after cooling carries dust in each groove in 4 uphill process, with water jacket wall 6, charcoal layer 3 and refractory wall 5 carry out heat exchange on the way, further cooling, when the gas after cooling is sent from uphill line 2, dust scatters in charcoal layer surface 3 and groove 4; From each groove 4 interior descending steam blowing carry out heat exchange with water jacket wall 6, charcoal layer 3 and refractory wall 5 on the way, superheated vapour, takes back the inner gasification of charcoal layer 3 and slag making the dust scattering in each groove 4.
Claims (1)
1. the method for a gasification briquette, it is that inboard wall of burner hearth surrounding at vapourizing furnace is provided with a plurality of grooves, groove is separated inboard wall of burner hearth and charcoal layer outer wall, form plough groove type uphill line, level sprays to thermal-flame and the high-temperature gas of each groove, in carrying out heat exchanging process with water jacket inwall, obtain extinguishing in time with cooling, high-temperature gas after cooling carries dust in each groove in uphill process, with water jacket wall on the way, charcoal layer and refractory wall carry out heat exchange, further cooling, when the gas after cooling is sent from uphill line, dust scatters in charcoal layer surface and groove, steam blowing and water jacket wall on the way descending in each groove, charcoal layer and refractory wall carry out heat exchange, superheated vapour is taken back the inner gasification of charcoal layer and slag making the dust scattering in each groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110313851.8A CN102417832B (en) | 2011-10-17 | 2011-10-17 | Gasification furnace and method for gasifying molded coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110313851.8A CN102417832B (en) | 2011-10-17 | 2011-10-17 | Gasification furnace and method for gasifying molded coal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102417832A CN102417832A (en) | 2012-04-18 |
| CN102417832B true CN102417832B (en) | 2014-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110313851.8A Expired - Fee Related CN102417832B (en) | 2011-10-17 | 2011-10-17 | Gasification furnace and method for gasifying molded coal |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112815358B (en) * | 2021-01-07 | 2023-04-18 | 太原理工大学 | Household biomass boiler and use method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5755838A (en) * | 1994-04-11 | 1998-05-26 | Hitachi, Ltd. | Coal gasifier and using method thereof |
| CN2367610Y (en) * | 1999-05-13 | 2000-03-08 | 关振民 | Hearth of straw gas producer |
| CN1786123A (en) * | 2005-10-25 | 2006-06-14 | 太原理工大学 | Internal and external circulation coal gasification method and device |
| CN2896056Y (en) * | 2006-05-09 | 2007-05-02 | 茹长歆 | Vegetation-powder gasifying stove |
| CN101845326A (en) * | 2009-10-23 | 2010-09-29 | 湖南安淳高新技术有限公司 | Spiral-flow melting pond gasifier |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10306285A (en) * | 1997-05-07 | 1998-11-17 | Babcock Hitachi Kk | Oven floor structure of coal-gasifying oven |
| CN101482272A (en) * | 2009-02-11 | 2009-07-15 | 陈洪棋 | Biomass energy gasification furnace apparatus |
-
2011
- 2011-10-17 CN CN201110313851.8A patent/CN102417832B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5755838A (en) * | 1994-04-11 | 1998-05-26 | Hitachi, Ltd. | Coal gasifier and using method thereof |
| CN2367610Y (en) * | 1999-05-13 | 2000-03-08 | 关振民 | Hearth of straw gas producer |
| CN1786123A (en) * | 2005-10-25 | 2006-06-14 | 太原理工大学 | Internal and external circulation coal gasification method and device |
| CN2896056Y (en) * | 2006-05-09 | 2007-05-02 | 茹长歆 | Vegetation-powder gasifying stove |
| CN101845326A (en) * | 2009-10-23 | 2010-09-29 | 湖南安淳高新技术有限公司 | Spiral-flow melting pond gasifier |
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| CN102417832A (en) | 2012-04-18 |
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Granted publication date: 20140219 Termination date: 20171017 |