CN102417832A - Gasification furnace and method for gasifying molded coal - Google Patents
Gasification furnace and method for gasifying molded coal Download PDFInfo
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- CN102417832A CN102417832A CN2011103138518A CN201110313851A CN102417832A CN 102417832 A CN102417832 A CN 102417832A CN 2011103138518 A CN2011103138518 A CN 2011103138518A CN 201110313851 A CN201110313851 A CN 201110313851A CN 102417832 A CN102417832 A CN 102417832A
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- charcoal layer
- burner hearth
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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
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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 method for particularly a kind of vapourizing furnace and gasification briquette.
Background technology
The fixed bed circulation method coal gasifying process that uses at present mainly contains two kinds of forms, and a kind of is to be the intermittent gasification method of representative with the UGI fixed bed coal gas producer, and another kind is to be two sections stove cycle gasification methods of representative with IGI.Traditional U GI, the IGI producer gas generator is gas-made technology intermittently, can only use lump coke, anthracite block coal and anthracitic oven dry and air-dry moulded coal etc.; Along with the rise at double of lump coke and anthracite block coal price, in many synthetic ammonia, peanut is forced to price low oven dry and air-dry moulded coal, in general; The cold extrusion moulded coal need be equipped with drying plant and dry moulded coal, and the hot extrusion moulded coal need not be equipped with drying plant, the dry type coal but air-dry place that need be large stretch of and facility 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, hot extrusion moulded coal and the original profit margin of cold extrusion moulded coal not only disappear; Take drying mode because of abandoning air-dry mode, and make the manufacturing cost of hot extrusion moulded coal higher.Application number is that 200910138231.8 " a kind of is the technology for production of raw-material gas for synthetic ammonia by coal gasification in two stage oven of raw material with the cold-pressed briquette " utilizes in the burner hearth part flue gas of drying to dry into the stove cold-pressed briquette; Realize the moulded coal extruding, gone into stove and drying course is accomplished 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 the method that a kind of vapourizing furnace and gasification briquette are provided to the defective 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 scheme that the present invention adopts is: it is that inboard wall of burner hearth at vapourizing furnace is provided with a plurality of grooves, and groove is separated inboard wall of burner hearth and charcoal layer outer wall; Form the plough groove type uphill line; Level sprays to the thermal-flame and the high-temperature gas of each groove, is carrying out in time being extinguished in the heat exchanging process and cooling off with the water jacket inwall, and the high-temperature gas after the cooling carries dust in each groove in the uphill process; With water jacket wall, charcoal layer and refractory wall carry out heat exchange on the way; Further cooling, the gas after the cooling are when uphill line is seen off, and dust scatters in charcoal laminar surface and groove; Descending following steam blowing carries out heat exchange with water jacket wall, charcoal layer and refractory wall on the way in each groove, and superheated vapour is taken back inner gasification of charcoal layer and slag making to the dust that scatters 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, is provided with the charcoal layer in the burner hearth, and 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: be provided with a plurality of grooves around the described inboard wall of burner hearth, groove is evenly arranged around the burner hearth circumference.
Beneficial effect:
1, after the charcoal layer height increases, can dry more moulded coal, reclaim more heat, improve coal utilizaton rate, reduce coal consumption;
2, level sprays to the thermal-flame and the high-temperature gas of about 900 ℃ of each grooves, is carrying out in the heat exchanging process with the water jacket inwall, is in time extinguished and cools off, and has solved type coal gasification wall built-up problem effectively;
3, the high-temperature gas after the cooling carries dust in each groove in the uphill process; With water jacket wall, charcoal layer and refractory wall carry out heat exchange on the way; Further cooling, the gas after the cooling are when uphill line is seen off, and most of dust scatters in charcoal laminar surface and groove; Reduce the wash away dynamics of dust, prolong the life cycle of equipment equipment;
4, in each groove descending following steam blowing with water jacket wall, charcoal layer and refractory wall carry out heat exchange on the way; Superheated vapour is taken back inner gasification of charcoal layer and slag making to the dust that scatters in each groove, directly reclaims the flue dust in the 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 separated effectively inboard wall of burner hearth and charcoal layer outer wall; Form a large amount of plough groove type uphill lines, in time extinguish and cool off up thermal-flame and high-temperature gas, prevent that the phenomenon of type coal gasification wall built-up from taking place; Overheated steam blowing down directly reclaims the flue dust in the groove.Stable gasification layer height reduces SR, and is energy-saving and cost-reducing.
Description of drawings
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
Like Fig. 1, shown in Figure 2, gasification furnace structure of the present invention comprises body of heater, and the centre of body of heater is provided with burner hearth 1; Be provided with charcoal layer 3 in the burner hearth; 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; Be provided with a plurality of grooves 4 around the described inboard wall of burner hearth, groove 4 is evenly arranged around the burner hearth circumference.
The inventive method is that charcoal layer 3 gasifies in burner hearth 1, and burner hearth 1 inwall is covered with groove 4, and groove 4 can be separated effectively burner hearth 1 inwall and charcoal layer 3 outer wall, forms a large amount of plough groove type uphill lines; Level sprays to the thermal-flame and the high-temperature gas of about 900 ℃ of each grooves, is carrying out in the heat exchanging process with water jacket 6 inwalls, is in time extinguished and cools off; High-temperature gas after the 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 the cooling was seen off from uphill line 2, dust scattered in charcoal laminar surface 3 and groove 4; Descending following steam blowing carries out heat exchange with water jacket wall 6, charcoal layer 3 and refractory wall 5 on the way in each groove 4, and superheated vapour is taken back 3 inner gasification and the slag making of charcoal layer to the dust that scatters in each groove 4.
Claims (2)
1. the method for a gasification briquette, it is around the inboard wall of burner hearth of vapourizing furnace, to be provided with a plurality of grooves, groove is separated inboard wall of burner hearth and charcoal layer outer wall; Form the plough groove type uphill line; Level sprays to the thermal-flame and the high-temperature gas of each groove, is carrying out in time being extinguished in the heat exchanging process and cooling off with the water jacket inwall, and the high-temperature gas after the cooling carries dust in each groove in the uphill process; With water jacket wall, charcoal layer and refractory wall carry out heat exchange on the way; Further cooling, the gas after the cooling are when uphill line is seen off, and dust scatters in charcoal laminar surface and groove; Descending following steam blowing carries out heat exchange with water jacket wall, charcoal layer and refractory wall on the way in each groove, and superheated vapour is taken back inner gasification of charcoal layer and slag making to the dust that scatters in each groove.
2. vapourizing furnace, it comprises body of heater, the centre of body of heater is provided with burner hearth; Be provided with the charcoal layer in the burner hearth; The top of burner hearth is provided with uphill line, and body of heater is provided with refractory wall, and the bottom of refractory wall is provided with water jacket; It is characterized in that: be provided with a plurality of grooves around the described inboard wall of burner hearth, groove is evenly arranged around the burner hearth circumference.
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 true CN102417832A (en) | 2012-04-18 |
| CN102417832B CN102417832B (en) | 2014-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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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| Country | Link |
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| CN (1) | CN102417832B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112815358A (en) * | 2021-01-07 | 2021-05-18 | 太原理工大学 | Household biomass boiler and use method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5755838A (en) * | 1994-04-11 | 1998-05-26 | Hitachi, Ltd. | Coal gasifier and using method thereof |
| JPH10306285A (en) * | 1997-05-07 | 1998-11-17 | Babcock Hitachi Kk | Oven floor structure of coal-gasifying oven |
| 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 |
| CN101482272A (en) * | 2009-02-11 | 2009-07-15 | 陈洪棋 | Biomass energy gasification furnace apparatus |
| 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 |
-
2011
- 2011-10-17 CN CN201110313851.8A patent/CN102417832B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5755838A (en) * | 1994-04-11 | 1998-05-26 | Hitachi, Ltd. | Coal gasifier and using method thereof |
| JPH10306285A (en) * | 1997-05-07 | 1998-11-17 | Babcock Hitachi Kk | Oven floor structure of coal-gasifying oven |
| 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 |
| CN101482272A (en) * | 2009-02-11 | 2009-07-15 | 陈洪棋 | Biomass energy gasification furnace apparatus |
| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112815358A (en) * | 2021-01-07 | 2021-05-18 | 太原理工大学 | Household biomass boiler and use method thereof |
| CN112815358B (en) * | 2021-01-07 | 2023-04-18 | 太原理工大学 | Household biomass boiler and use method thereof |
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| CN102417832B (en) | 2014-02-19 |
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