CN207632750U - A kind of four sections of heat reclamation type efficient gasification furnaces - Google Patents
A kind of four sections of heat reclamation type efficient gasification furnaces Download PDFInfo
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- CN207632750U CN207632750U CN201721717378.9U CN201721717378U CN207632750U CN 207632750 U CN207632750 U CN 207632750U CN 201721717378 U CN201721717378 U CN 201721717378U CN 207632750 U CN207632750 U CN 207632750U
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Abstract
The utility model is related to a kind of four sections of heat reclamation type efficient gasification furnaces, belong to coal, coke gasification field.Purpose is to improve gasification efficiency, raising makings, reduction energy consumption, simplified technique, reduce investment outlay.Gasifying agent is air+steam.After coal or coke enter stove, continuous redox reaction is carried out with the gasifying agent after preheating, produces water-gas.Water-gas can make industry or domestic gas, can also make Chemical Manufacture unstripped gas after the purified treatments such as Exposure degree, dedusting.It was verified that the utility model is economical and practical, makings is good, low energy consumption, the thermal efficiency is high, the equipment cycle of operation is long, safety and environmental protection.So there is significant economic benefit and social benefit using the utility model, there is wide application prospect.
Description
Technical field
The utility model is related to a kind of four sections of heat reclamation type efficient gasification furnaces, belong to coal, coke gasification field.
Background technology
Coal gasification reaction is a kind of chemical reaction being happened between carbon and the gasifying agent (O2, H2O, CO2) of oxygen carrier.Water coal
Gas purposes is very extensive, and main ingredient is hydrogen and carbon monoxide, and also a small amount of methane, one serves as combustion gas, second is that with
To produce chemical products.
Coal Gasification Technology developing history has more than 100 years, and the gasification type of furnace successively has nearly hundred kinds.Pay much attention to gasification skill in China
The research and development of art, self-dependent technical force have researched and developed all kinds of fixed beds, fluid bed and entrained flow bed gasification technology.
China part smelting factory, Metal Processing Factory, Foundry Works, small steel mill, ceramics factory, glass factory, middle-size and small-size fertilizer enterprises etc., are adopted mostly
It is old-fashioned fixed bed gasifier, is commonly called as single hop stove, this stove recuperation of heat is insufficient, and lime-ash carbon residue is high, and high energy consumption, coal gas has
Effect ingredient is low, and calorific value is low, and the degree of automation is low, and environmental issue is serious, and security risk is more.
To select better gasification furnace, China has introduced Winkler fluidization, the seventies the 1950s again
The strange fixed bed gasification technology in Shandong has been introduced, Texaco's pressurization coal water slurry gasification technology has been introduced the eighties, has introduced shell the nineties
The technologies such as board coal dust gasification.But each gasification technology has the adaptability and limitation of oneself, different raw material sources to correspond to not
The same type of furnace.External stove is suitable for enlarged manufacturing enterprise, and investment is very big, and general enterprises are difficult to bear, and to raw material
Coal requires quite harsh.
It is not very big that major part, which needs enterprise and the small chemical industry of combustion gas, the gas volume needed, and air pressure is also not required to
Very high, so big coal gasification furnace, such as lurgi gasifier, Texaco, shell, space flight stove, Tsing-Hua University's stove, section's woods stove are not suitable for these
The demand of enterprise, so developing, one kind is small-sized, low pressure, efficient, energy-efficient gasification furnace is necessary, thus the applicant's decision group
Engineers and technicians are knitted, by the experience done coal gasifier for many years and accumulated, develop a kind of four sections of heat reclamation type efficient gasification furnaces.
Utility model content
Old single hop stove is used for combustion gas processed and material gas mostly, is mainly used in some and combustion gas and doing is needed to produce
Enterprise, old single hop stove carry-over is more, lime-ash carbon residue is high, efficiency of carbon con version is low；Sensible heat missing is big, and recuperation of heat is insufficient；Makings is poor,
Active ingredient is low, and calorific value is low etc..Since old single hop stove has shortcomings and deficiency, there is also certain environmental issues, many
Place, which has been expressly provided, will eliminate such type of furnace, to solve this problem it is necessary to a kind of more advanced replacement type of furnace, this practicality
It is novel to be designed to provide a kind of four sections of heat reclamation type efficient gasification furnaces, it is more efficient, more energy efficient, safer so as to realize
The gasification furnace of environmental protection.
The utility model to achieve the goals above, adopts the following technical scheme that：
A kind of four sections of heat reclamation type efficient gasification furnaces, the gasification furnace are divided into four parts：Gasification furnace body part, recuperation of heat
Device, automatic coal feeding device and automatic clinker-removing device；
Automatic coal feeding device is located at the upper end of gasification furnace body part, and automatic clinker-removing device is located at gasification furnace body part
Lower end；
The heat reclamation device divides four sections from bottom to up, and the first heat-recovery section is in ash bed, oxide layer and reduction zone position
It sets, belongs to jacket structured；Desalted water is walked in centre, by-product saturated vapor after heat absorption, this section of setting recuperation of heat one is outside reducing gasification layer
Wall temperature protects gasification layer outer wall, and prevent high temperature from burning ring influences layer of charcoal and move down second is that preventing red charcoal wall built-up.
Second heat-recovery section is in drying layer and idle running position, belongs to jacket structured；Air is walked in centre, i.e., herein by gasifying agent
Preheating reenters stove.
Third heat-recovery section is in top of gasification furnace, i.e., makes gasification furnace furnace top head jacket structured；This heat-recovery section
Thermodynamic cycle, common byproduct steam are formed with the first heat-recovery section, while also acting as the effect of drum.
4th heat-recovery section is arranged on gas exit manifold.The saturation of aforementioned institute's by-product is heated using coal gas high-temperature sensible heat
Steam is mixed into stove with hot-air again after making steam superheating.
Further, variable-frequency motor is connect with gasification furnace body part, and fire grate is located in ash bed, and variable-frequency motor drives stove
Grate.It can easily be accommodated, it is energy-saving, it reduces fire grate and stops caused by easily being broken down with other speed adjusting gears.
Further, gasification furnace body part is to use spinning ellipse end socket up and down by pressure-bearing type structure.
Further, drying layer, destructive distillation layer, reduction zone, oxygen are disposed with inside gasification furnace body part from top to bottom
Change layer and ash bed.
Further, centrifugal blower is connect with the second heat-recovery section.
The gasification process of above-mentioned four sections of heat reclamation type efficient gasification furnaces, is as follows：
A, feed coal or coke are added to by bucket elevator or Belt Conveying to automatic stoker by feed coal or coke
In gasification furnace, drying layer, destructive distillation layer, reduction zone, oxide layer, ash bed are passed sequentially through in stove；
Reduction zone and oxide layer are referred to as gasification layer, and oxygen of the feed coal in gasification layer and steam and air aoxidize also
Original reaction generates coal gas；For lime-ash through fire grate attrition crushing ash charge lock hopper, the lime-ash in grey lock hopper is fixed by apparatus for ash under not blowing out
Phase discharges；
B, air comes from centrifugal blower, is introduced into gasification furnace the second heat recovery section spiral duct and is preheated, in advance
About 80-100 DEG C of air themperature after heat, is then mixed into gasification furnace furnace bottom with superheated steam；
C, desalted water or deaerated water input gasification furnace third heat-recovery section with water pump, i.e., in furnace roof drum, this drum and the
One heat recovery section forms thermodynamic cycle, by-product saturated vapor；Saturated vapor send the 4th heat-recovery section, exchanges heat with coal gas of high temperature,
Saturated vapor is superheated to 200-200 DEG C, is then mixed into gasification furnace with hot-air；
D, after hot-air is mixed with superheated steam, temperature enters stove in the middle part of furnace bottom cinder box, passes through fire grate at 130-150 DEG C
The distribution of gasifying agent is carried out, gasifying agent exchanges heat from fire grate gap is out rear with scorching hot lime-ash, and the temperature of gasifying agent is carried
Up to 300-400 DEG C, ash temperature is down to 200-250 DEG C；Gasifying agent goes out ash bed and enters gasification layer to be aoxidized with feed coal
Reduction reaction reacts the coal gas of high temperature of generation through destructive distillation layer and drying layer, exchanges heat with feed coal, and feed coal is dried and destructive distillation,
Gas temperature is reduced to 300-350 DEG C from 1100-1200 DEG C, then comes out of the stove and further cools down through the 4th heat recovery section, at this time
About 180-200 DEG C of gas temperature send next workshop section.
This gasification process makees gasifying agent using air+steam, and continuous gasification reaction is carried out as raw material using raw coal or coke,
Operating pressure 0.01-0.1MPa.
Its main chemical reactions formula is as follows：
C+O2=CO2+Q
2C+O2=2CO+Q
C+CO2=2CO-Q
C+2H2O(g)=CO2+2H2-Q
C+H2O(g)=CO+H2-Q
The beneficial effects of the utility model：
1, gasification furnace is full chuck form, and no casting lining, making is easy to maintenance, while high temperature coal is not easy wall built-up.
2, gasification furnace gas forming amount is big, and the intensity of gasification is high, no dust and poisonous gas leakage.
3, all kinds of coals are adapted to, smokeless small coal, lignite, bituminous coal, metallurgical coke, chemical industry coke, semi-coke, semicoke can be burnt, also may be used
Coal stick or coal briquette made of burning fine coal.
4, coal combustion is thorough, charcoal high conversion rate, and unit coal consumption is low.
5, institute's producing coal gas effective ingredient (CH4+CO+H2) content is high, and calorific value of gas is high.
6, safety measure is complete, high degree of automation, and manipulation is easy to learn.
7, live clean hygiene, low noise, no waste water, exhaust gas discharge without environmental issue, meet national industrial policies.
8, stove can realize long-period stable operation, and maintenance is few, and maintenance cost is low.
9, with good investment, it is quick.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the diagrammatic cross-section of the another sides the utility model Fig. 1.
Specific implementation mode
1,2 pair of the utility model is described in detail below in conjunction with the accompanying drawings：
A kind of four sections of heat reclamation type efficient gasification furnaces, the gasification furnace are divided into four parts：Gasification furnace body part, recuperation of heat
Device, automatic coal feeding device 1 and automatic clinker-removing device 2；
Automatic coal feeding device 1 is located at the upper end of gasification furnace body part, and automatic clinker-removing device 2 is located at gasification furnace body part
Lower end；
The heat reclamation device divides four sections from bottom to up, and the first heat-recovery section 3 is in ash bed 4, oxide layer 11 and reduction
5 position of layer, belong to jacket structured；Desalted water is walked in centre, by-product saturated vapor after heat absorption, this section of setting recuperation of heat one is to reduce gasification
Layer outside wall temperature, protects gasification layer outer wall, and prevent high temperature from burning ring influences layer of charcoal and move down second is that preventing red charcoal wall built-up.
Second heat-recovery section 6 is in drying layer 13 and idle running position, belongs to jacket structured；Air is walked in centre, i.e., by gasifying agent
Preheating reenters stove herein.
Third heat-recovery section 7 is in top of gasification furnace, i.e., makes gasification furnace furnace top head jacket structured；This heat-recovery section
Thermodynamic cycle, common byproduct steam are formed with the first heat-recovery section, while also acting as the effect of drum.
4th heat-recovery section 8 is arranged on gas exit manifold.The full of aforementioned institute's by-product is heated using coal gas high-temperature sensible heat
And steam, after making steam superheating stove is mixed into hot-air again.
Variable-frequency motor 9 is connect with gasification furnace body part, and fire grate 10 is located in ash bed 4, and variable-frequency motor 9 drives fire grate
10.It can easily be accommodated, it is energy-saving, it reduces fire grate 10 and stops caused by easily being broken down with other speed adjusting gears.
Gasification furnace body part is to use spinning ellipse end socket up and down by pressure-bearing type structure.Vapor pressure can basis
User is adjustable within the scope of 0.01-0.1MPa to the needs of gas pressure.
Drying layer 13, destructive distillation layer 12, reduction zone 5, oxide layer are disposed with inside gasification furnace body part from top to bottom
11 and ash bed 4.
Centrifugal blower 14 is connect with the second heat-recovery section 6.
The gasification process of above-mentioned four sections of heat reclamation type efficient gasification furnaces, is as follows：
A, feed coal or coke are added to by feed coal or coke by bucket elevator or Belt Conveying to automatic stoker 1
In gasification furnace, drying layer 13, destructive distillation layer 12, reduction zone 5, oxide layer 11, ash bed 4 are passed sequentially through in stove；
Reduction zone 5 and oxide layer 11 are referred to as gasification layer, and oxygen of the feed coal in gasification layer and steam and air carries out oxygen
Change reduction reaction and generates coal gas；For lime-ash through fire grate attrition crushing ash charge lock hopper, the lime-ash in grey lock hopper passes through ash dress under not blowing out
Set regular discharge；
B, air comes from centrifugal blower 14, is introduced into 6 spiral duct of the second heat recovery section of gasification furnace and is preheated,
About 80-100 DEG C of air themperature after preheating, is then mixed into gasification furnace furnace bottom with superheated steam；
C, desalted water or deaerated water input gasification furnace third heat-recovery section 7 with water pump, i.e., in furnace roof drum, this drum and the
One heat recovery section forms thermodynamic cycle, by-product saturated vapor；Saturated vapor send the 4th heat-recovery section 8, exchanges heat with coal gas of high temperature,
Saturated vapor is superheated to 200-200 DEG C, is then mixed into gasification furnace with hot-air；
D, after hot-air is mixed with superheated steam, temperature enters stove at 130-150 DEG C, from 15 middle part of furnace bottom cinder box, passes through stove
Grate carries out the distribution of gasifying agent, and gasifying agent exchanges heat from fire grate gap is out rear with scorching hot lime-ash, the temperature quilt of gasifying agent
It improves to 300-400 DEG C, ash temperature is down to 200-250 DEG C；Gasifying agent goes out ash bed 4 and enters gasification layer and feed coal progress oxygen
Change reduction reaction, react the coal gas of high temperature of generation through destructive distillation layer 12 and drying layer 13, exchange heat with feed coal, feed coal dried and
Destructive distillation, gas temperature are reduced to 300-350 DEG C from 1100-1200 DEG C, then come out of the stove through the 4th further cooling of heat-recovery section 8,
About 180-200 DEG C of gas temperature send next workshop section at this time.
This gasification process makees gasifying agent using air+steam, and continuous gasification reaction is carried out as raw material using raw coal or coke,
Operating pressure 0.01-0.1MPa.
Its main chemical reactions formula is as follows：
C+O2=CO2+Q
2C+O2=2CO+Q
C+CO2=2CO-Q
C+2H2O(g)=CO2+2H2-Q
C+H2O(g)=CO+H2-Q
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of four sections of heat reclamation type efficient gasification furnaces, it is characterised in that：The gasification furnace is divided into four parts：Gasification furnace body part
Divide, heat reclamation device, automatic coal feeding device（1）And automatic clinker-removing device（2）；
Automatic coal feeding device（1）Positioned at the upper end of gasification furnace body part, automatic clinker-removing device（2）Positioned at gasification furnace body part
Lower end；
The heat reclamation device divides four sections from bottom to up, the first heat-recovery section（3）In ash bed（4）, oxide layer（11）With also
Former layer（5）Position belongs to jacket structured；
Second heat-recovery section（6）In drying layer（13）With idle running position, belong to jacket structured；
Third heat-recovery section（7）In top of gasification furnace, i.e., gasification furnace furnace top head is made jacket structured；
4th heat-recovery section（8）It is arranged on gas exit manifold.
2. four sections of heat reclamation type efficient gasification furnaces according to claim 1, it is characterised in that：Variable-frequency motor（9）With gasification
Furnace body part connects, fire grate（10）Positioned at ash bed（4）In, variable-frequency motor（9）Drive fire grate（10）.
3. four sections of heat reclamation type efficient gasification furnaces according to claim 1, it is characterised in that：Gasification furnace body part be by
Pressure-bearing type structure uses spinning ellipse end socket up and down.
4. four sections of heat reclamation type efficient gasification furnaces according to claim 1, it is characterised in that：Inside gasification furnace body part
It is disposed with drying layer from top to bottom（13）, destructive distillation layer（12）, reduction zone（5）, oxide layer（11）And ash bed（4）.
5. four sections of heat reclamation type efficient gasification furnaces according to claim 1, it is characterised in that：Centrifugal blower（14）With
Two heat-recovery sections（6）Connection.
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Cited By (1)
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|---|---|---|---|---|
| CN108003941A (en) * | 2017-12-12 | 2018-05-08 | 杭州昱普能源科技有限公司 | A kind of four sections of heat reclamation type efficient gasification furnaces and its gasification process |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108003941A (en) * | 2017-12-12 | 2018-05-08 | 杭州昱普能源科技有限公司 | A kind of four sections of heat reclamation type efficient gasification furnaces and its gasification process |
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| TR01 | Transfer of patent right |
Effective date of registration: 20190618 Address after: 330000 Yuping Road, Nanchang Economic and Technological Development Zone, Jiangxi Province Patentee after: Jiangxi Changyi Industrial Co., Ltd. Address before: 310000 Room 1001, Building 3, Jinzu, Dongtou, 597 Dongning Road, Jianggan District, Hangzhou City, Zhejiang Province Patentee before: Hangzhou Universal Energy Technology Co., Ltd. |