CN2036952U - Hot gas producer - Google Patents
Hot gas producer Download PDFInfo
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- CN2036952U CN2036952U CN 88216840 CN88216840U CN2036952U CN 2036952 U CN2036952 U CN 2036952U CN 88216840 CN88216840 CN 88216840 CN 88216840 U CN88216840 U CN 88216840U CN 2036952 U CN2036952 U CN 2036952U
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- coal
- furnace body
- gas
- furnace
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Abstract
The utility model provides a generation furnace for producing the gasification gas, comprising a charging coal bucket, a furnace body provided with a sealing coal barn, and a furnace bottom composed of a mechanical deslagging system, a blasting system and a mechanical ash removing system, wherein, the furnace body comprises an upper furnace body and a lower furnace body, and thus the gasification and the dry distillation of the coal can be carried out by stages; the volatile compound in the coal is uneasy to be cracked. The generation furnace having the advantages of high quality, smoke prevention, dust control, strong adaptive capacity on the coal species and high rate of gas production can make the airflow of the gasification agent ascend uniformly so as to avoid the coal layer approaching to the furnace wall from being 'burned through' and obtain the coal gas with high thermal value.
Description
The utility model provides a kind of heating gas producer of producing gasification gas.
At current industrial fuel still based on stage of coal, adopt producer to produce coal gas, it then is one of mode of utilizing preferably in coal, existing normal pressure moving-bed type vapourizing furnace form is more, but because of being subjected to the influence of its structure, to raw materials used kind, physical property requires relatively stricter, can't wide popularization and application.For example physical strength is little and the raw material of poor heat stability is totally unfavorable to the operation of moving-bed type vapourizing furnace; And for example weak cohesiveness raw material can only gasify in the producer of belt stirrer; The strong cohesive property raw material generally should not be used for moving-bed gasification.For integral type vapourizing furnace body of heater, because of the coal carbonization product by thermo-cracking, reduced gas quality and gas production rate, simultaneously also can because of the vaporized chemical air-flow distribute inhomogeneous, " burning " coal seam and reduce gas production rate.The maintenance of existing vapourizing furnace dreg removing system must be removed the body of heater on its top and just can be operated, and its transmission rig does not seal in that ash is indoor, influences work-ing life, has increased difficulty to maintenance yet.Therefore, develop and have that suitable coal is extensive, gas quality good, gas production rate height, be convenient to the producer gas generator that keeps in repair and operate, become current urgency problem to be solved.
The purpose of this utility model provides a kind of improved heating gas producer, and not only the adaptive faculty to coal is strong for it, and smoke medicining dust-removing effect is good, and can obviously improve gas quality and productive rate, reduces the loss of raw material in the gasification.
The purpose of this utility model is achieved in that this device utilizes reinforced coal bunker to carry out mechanical stoking, and the sealing coal bunker is equipped with in its body of heater top, and body of heater is made up of upper furnace body and lower furnace body two portions.Internal protecting wall in the upper furnace body and base are the refractory materials prefabricated component, and outer furnace wall is made with the aluminosilicate refractory fiber material.Form annular cavity between outer furnace wall, base and internal protecting wall, this cavity is communicated with the lower furnace body inner chamber by the through hole on the base.Lower furnace body is the water jacket that inner chamber is cydariform, and it is fixed on the concrete pedestal by column, and furnace bottom is made up of mechanical dreg removing system, air-blast system and mechanical ashing system three parts.Grate in the wherein mechanical dreg removing system adopts eccentric turriform vertical array fire bars structure, the end stone or metal plate for standing a stove on as a precaution against fire that supports with support roller device adopts the sand seal sealing, and rotate by electric motor drives, make end stone or metal plate for standing a stove on as a precaution against fire in rotation, not leak ash, air tight, vaporized chemical is introduced by the air-blast system inlet pipe, also has the waste heat flue gas of recycling in vaporized chemical except that containing air, water vapor.The mechanical ashing system then adopts general chain scraper type or spiral ash handling equipment.
Because the utility model body of heater is made up of the lower furnace body that upper furnace body that has internal protecting wall and inner chamber are the cydariform water jacket, so can carry out to the gentle section of dividing of coal carbonization, volatile matter in the coal is difficult for cleaved, not only can improve gas quality, obtains the high coal gas of calorific value.And the vaporized chemical air-flow is evenly risen, and avoid near coal seam, furnace wall " burning " phenomenon to occur, when heating gas entered annular cavity by the upper furnace body base plate through holes, the coal that enters in the internal protecting wall was dried and destructive distillation.Meanwhile, the temperature of internal protecting wall can be higher than the temperature of coal, thereby on the internal protecting wall of avoiding in retort process, boning.Eccentric turriform grate, adopt vertically disposed fire bars, the ability that enough stirrings, fragmentation and eliminating slag are arranged, so kind and particle size uniformity to coal require also not strict like that as existing producer gas generator, end stone or metal plate for standing a stove on as a precaution against fire adopts the sand seal sealing, transmission mechanism is in closed state, avoids directly contacting with ash, prolongs its work-ing life.End stone or metal plate for standing a stove on as a precaution against fire supports with support roller device, easily dismounting, is easy for installation and maintenance.Owing to also contain useless flue gas in the vaporized chemical.So not only effectively the recovery part fume afterheat, stablize furnace temperature, and part carbon atom recycle can further improve utilization ratio of raw materials.
Below in conjunction with accompanying drawing the utility model is further described:
Fig. 1 is the longitudinal sectional view of a kind of concrete structure of the utility model.
Fig. 2 is the sectional view of Fig. 1 along the A-A line.
Fig. 3 is the vertical view of upper furnace body base.
Fig. 4 is the sectional view of Fig. 3 along the B-B line.
Describe concrete structure of the present utility model and working condition in detail according to Fig. 1～4.This device comprises reinforced coal bunker 14, body of heater and the furnace bottom of mechanical stoking.Wherein body of heater is made of upper furnace body 7 and lower furnace body 9 two portions.Furnace bottom is made up of mechanical dreg removing system, air-blast system and mechanical ashing system.Sealing coal bunker 2 is equipped with in the body of heater top, adopts the sand seal sealing, coal bunker 2 top sand seal lids 1 and reinforced coal bunker 14 interlocks, when coal bunker 14 rises near coal bunker 2, sand seal lid 1 is opened, and when coal bunker 14 left coal bunker 2, sand seal lid 1 was closed, the counterweight 34 and the leverage 35 thereof that are assembled on the coal bunker 2 are connected with bell 3 by chain 36, open when quantitative coal makes bell 3, after coal was umbrella shape and is evenly distributed in the stove from the coal bunker mouth, counterweight 34 just resetted bell 3, seal the coal bunker mouth, prevent that coal gas is excessive.The top of upper furnace body 7 is provided with coal gas fairlead 31, and coal bunker 2 is fixed on the bell 4 of upper furnace body 7, also is provided with on the bell 4 to visit vent and explosionproof hole 33, and the internal protecting wall 5 and the base 8 of upper furnace body are the refractory materials prefabricated component, and outer furnace wall 6 usefulness alumina silica refractories are made.Internal protecting wall 5 upper ends contact with bell 4, use the refractory fibre felt seal, and its lower end is loaded on the base 8, with the two internal diameter alignment.Outer furnace wall 6, base 8 and 5 of internal protecting walls form annular cavity, and this annular cavity is communicated with lower furnace body 9 inner chambers by the through hole on the base 8.Internal protecting wall 5 tops are reserved with rectangular through-hole, and the inner chamber of internal protecting wall 5 is communicated with its outside annular cavity.Lower furnace body 9 is the water jacket of cydariform for inner chamber, and it is fixed on the concrete pedestal 23 by four root posts.Lower furnace body 9 also is provided with lighting door, water jacket inspection window mudhole on it except that supporting upper furnace body 7.Liquid communicates with outer tank 32 by upper and lower fairlead in the water jacket.The dreg removing system of furnace bottom comprises grate 10, end stone or metal plate for standing a stove on as a precaution against fire 11, locating sleeve 17, permanent sleeve 19, support roller device 16, transmission mechanism, motor 27 sand sealing grooves 12 and furnace bottom mounting 20 compositions that adopt eccentric turriform vertical array fire bars structure.Wherein grate 10, locating sleeve 17, master wheel 15, sand sealing groove 12 all are connected on the end stone or metal plate for standing a stove on as a precaution against fire 11 with bolting.When motor 27 rotates, drive the transmission mechanism of forming by small belt pulley 26, big belt pulley 25, speed reduction unit 28, pinion(gear) 29, master wheel 15 and rotate the end stone or metal plate for standing a stove on as a precaution against fire 11 that supports with support roller device.Sand sealing groove 12 constitutes the sand seals sealing on the sand cutter 30 that is fixed on lower furnace body 9 bottoms and the end stone or metal plate for standing a stove on as a precaution against fire 11.When sand sealing groove 12 rotated with end stone or metal plate for standing a stove on as a precaution against fire 11, sand cutter 30 was immersed in the sand all the time, guarantees not leak ash, air tight.Support roller device 16, motor 27, speed reduction unit 28, permanent sleeve 19 are assembled in respectively on the furnace bottom mounting 20.Utilize sealing gland 18 and lock packing sealing between permanent sleeve 19 and the locating sleeve 17.Slag by grate 10 is got rid of falls in the water seal tank from end stone or metal plate for standing a stove on as a precaution against fire 11 inner chambers, by chain scraper type or spiral ash handling equipment 22, is transported to ground and transports.Air-blast system is made up of gas blower, vaporized chemical inlet pipe 24, water seal air duct 21 etc., and wherein water seal tube 21 is assembled into one with permanent sleeve 19, and contain oxygen in the vaporized chemical, water vapor and the hot flue gas that draws back from burner hearth.CO in the hot flue gas
2Is red-hot oxidation of coal CO, improves factor of created gase, and the support roller device 16 that the end stone or metal plate for standing a stove on as a precaution against fire 11 in the hearth deslagging system supports below can move.After unloading motor 27, speed reduction unit 28, remove support roller device 16, end stone or metal plate for standing a stove on as a precaution against fire 11 can be fallen on the furnace bottom mounting 20, is fixed on the bottom surface that grate 10 parts such as grade on the end stone or metal plate for standing a stove on as a precaution against fire 11 also are separated from lower furnace body 9 simultaneously.The preformed groove track of body of heater mounting 20 on concrete pedestal 23 can be moved to outside the body of heater.This structure provides the condition that makes things convenient for for the installation and the maintenance of hearth deslagging system, and particularly maintenance or when changing grate 10, end stone or metal plate for standing a stove on as a precaution against fire 11 or else must be as existing producer, the dismounting body of heater.
During operation, coal enters sealing coal bunker 2 by coal bunker 14, is umbrella shape through bell 3 again and evenly spills in the round shape internal protecting wall 5.(major ingredient is CO to contain oxygen, water vapor and useless flue gas
2) vaporized chemical from furnace bottom inlet pipe 24, enter in the body of heater 9 via grate 10, vaporized chemical at first contacts with hot slag in the cydariform water jacket inner chamber.Heated and when inner chamber diffusion was risen, vaporized chemical was evenly distributed, can avoid the furnace wall effectively near the coal seam " burnt " simultaneously, when vaporized chemical rises to zone of oxidation, just with coal generation oxidation and reduction reaction, generation coal gas.Its reaction equation is as follows:
①C＋O
2＝CO
2＋40.8×10
4KJ／Kmol
②2C＋O
2＝2CO＋24.6×10
4KJ／Kmol
③2CO
2＋O
2＝2CO
2＋57×10
4KJ／Kmol
④C＋CO
2＝2CO－16.2×10
4KJ／Kmol
⑤C＋H
2O＝CO＋H
2－11.9×10
4KJ／Kmol
⑥C＋2H
2O＝CO
2＋2H
2－7.5×10
4KJ／Kmol
Oxidizing reaction temperature can reach 1200～1250 ℃, because vaporized chemical is made up of air, water vapor and waste heat flue gas.Thereby the exothermic oxidation reaction between existing carbon of zone of oxidation and oxygen, also have the reduction thermo-negative reaction between water vapor, carbonic acid gas and the red-hot charcoal.At the reduction reaction layer, mainly carry out be 4., 5., the 6. reaction of formula.Can make furnace temperature all permanent, stable.
The coal gas that generates at cydariform water jacket inner chamber does not contain the volatile matter that deposit in coal Central Plains, can be described as " purified gas ".Purified gas rises to interior top of chamber, a part enters internal protecting wall 5 inner chambers, for coal in the inner chamber provides the destructive distillation heat, a part of base 8 pre-opened holes through upper furnace body 7 enter this part coal gas of annular cavity (this moment, gas temperature was 600～700 ℃) that forms between outer furnace wall 6, base 8 and internal protecting wall and heat from the outside to furnace wall 5 in the annular cavity uphill process, this heat one is to make in internal protecting wall 5 cavitys to be subjected to drying and destructive distillation, makes furnace wall temperature be higher than the coal temperature simultaneously and is bonded in retort process on internal protecting wall 5 inwalls to prevent coal.
Internal protecting wall 5 inner chamber tops, about 100～150 ℃ of coal seam upper surface temperature, under this temperature, the moisture content in the initiate coal is start vaporizer, coal begins by dry gradually.Along with coal descends lentamente, constantly be subjected to the heating of the hot purified gas that furnace wall and internal protecting wall 5 bottoms enter, the temperature of coal rises gradually, reach and begin to separate out pyrolysis product about 350 ℃, generate a large amount of hydrogen, methane, unsaturated hydrocarbons and semi coking tar, this state is 500～600 ℃ of end, and coal begins zoom.The hot purified gas that enters internal protecting wall 5 inner chambers is cooling and mix with volatile matter, dry distillation gas, semi coking tar in the coal gradually in uphill process, when arriving inner chamber top, temperature range is 100～150 ℃, the hot purified gas of drawing in the rectangular through-hole of reserving from the furnace wall with annular cavity meets, the coalitenessity mist of oil is heated gasification once again, draws outside the stove under 500～600 ℃ through the stock gas fairlead.
Coal has been finished dry, destructive distillation pyrolysis gradually in internal protecting wall 5, up to carbonization process, the volatile matter of the coal that (reaches 600～700 ℃ approximately) when falling into the water jacket inner chamber is thoroughly removed, coal is the semicoke state, it continues slowly to descend, the coal of semicoke state continues to be heated (800～1000 ℃), coal is further by coking, arrive before the zone of oxidation (about 1200～1250 ℃), coal almost becomes coke, at gasifying stage, except that a small amount of charcoal is retained in the ash, all the other are gasified fully, and therefore, the smoke medicining dust-removing effect of this device is good.In addition, because grate 10 has enough stirrings, fragmentation and eliminating slag ability.Therefore strong, the system thermal efficiency of this stove degassifying ability higher outside, require also strict like that to the particle size uniformity of coal, coal as producer gas generator.During its coal was not limit, granularity is, fritter got final product.Particularly coal enters in the stove, at first by destructive distillation lentamente, regasify after the coking, its destructive distillation volatile matter directly is not subjected to heat, not cracking, so not only guarantee heating gas in conveying, non-scaling (not separating out charcoal) in the gas main, and contain more dry distillation gas, tar etc. in the coal gas, calorific value is higher, can reach 1500～1700 kilocalories/mark rice
3
Claims (1)
1, a kind of heating gas producer, comprise reinforced coal bunker, the body of heater of sealing coal bunker and the furnace bottom of being made up of mechanical dreg removing system, air-blast system and mechanical ashing system are housed, it is characterized in that described body of heater is made up of upper furnace body and lower furnace body, internal protecting wall in the upper furnace body and base are the refractory materials prefabricated component, lower furnace body is the water jacket that inner chamber is cydariform, be fixed on the concrete pedestal by column, grate in the machinery dreg removing system adopts eccentric turriform vertical array fire bars structure, and the end stone or metal plate for standing a stove on as a precaution against fire that supports with support roller device adopts the sand seal sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88216840 CN2036952U (en) | 1988-08-30 | 1988-08-30 | Hot gas producer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88216840 CN2036952U (en) | 1988-08-30 | 1988-08-30 | Hot gas producer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2036952U true CN2036952U (en) | 1989-05-03 |
Family
ID=4849426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88216840 Withdrawn CN2036952U (en) | 1988-08-30 | 1988-08-30 | Hot gas producer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2036952U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100455888C (en) * | 2002-08-29 | 2009-01-28 | 北京浩业达高新技术发展有限公司 | Method and apparatus for treating garbage |
| CN112646605A (en) * | 2020-12-31 | 2021-04-13 | 苏州允清环境能源科技有限公司 | Double-layer furnace body fixed bed gasification furnace and organic solid waste gasification method |
| CN112680249A (en) * | 2020-12-31 | 2021-04-20 | 苏州允清环境能源科技有限公司 | Organic solid waste pressure gasification system and method |
| CN112708467A (en) * | 2020-12-31 | 2021-04-27 | 苏州允清环境能源科技有限公司 | Organic solid waste pressure gasification and waste heat recycling system and method |
-
1988
- 1988-08-30 CN CN 88216840 patent/CN2036952U/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100455888C (en) * | 2002-08-29 | 2009-01-28 | 北京浩业达高新技术发展有限公司 | Method and apparatus for treating garbage |
| CN112646605A (en) * | 2020-12-31 | 2021-04-13 | 苏州允清环境能源科技有限公司 | Double-layer furnace body fixed bed gasification furnace and organic solid waste gasification method |
| CN112680249A (en) * | 2020-12-31 | 2021-04-20 | 苏州允清环境能源科技有限公司 | Organic solid waste pressure gasification system and method |
| CN112708467A (en) * | 2020-12-31 | 2021-04-27 | 苏州允清环境能源科技有限公司 | Organic solid waste pressure gasification and waste heat recycling system and method |
| CN112646605B (en) * | 2020-12-31 | 2021-08-06 | 苏州允清环境能源科技有限公司 | Double-layer furnace body fixed bed gasification furnace and organic solid waste gasification method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |