CN203144350U - Entrained-flow bed gasifying furnace with multiple nozzles - Google Patents
Entrained-flow bed gasifying furnace with multiple nozzles Download PDFInfo
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- CN203144350U CN203144350U CN2013200997868U CN201320099786U CN203144350U CN 203144350 U CN203144350 U CN 203144350U CN 2013200997868 U CN2013200997868 U CN 2013200997868U CN 201320099786 U CN201320099786 U CN 201320099786U CN 203144350 U CN203144350 U CN 203144350U
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Abstract
The utility model discloses an entrained-flow bed gasifying furnace with multiple nozzles. The furnace is characterized by comprising a gasifying furnace body, wherein a chilling conversion chamber is arranged below the gasifying furnace body, and a washing and deslagging chamber is arranged below the chilling conversion chamber. The gasifying furnace body, the chilling conversion chamber and the washing and deslagging chamber are coaxially arranged. The gasifying furnace body is internally provided with a nozzle chamber and a technical nozzle chamber. The chilling conversion chamber is internally provided with a chilling ring. The furnace disclosed by the utility model has the characteristics of stable and reliable operation, environmental friendliness, energy saving and the like, and large-scale amplification can be realized easily.
Description
Technical field
The utility model relates to a kind of multi-nozzle airflow bed gasification furnace, belongs to energy clean utilization technical field.
Background technology
Gasification is a thermochemical process of carbonaceous material.Gasification technology is raw material with the powder of carbonic solid fuels such as coal or the liquid fuel of its configuration usually, with oxygenous, water vapor as vaporized chemical, after spraying into vapourizing furnace by burner, the generating gasification reaction produces High Temperature High Pressure synthetic gas (or being called coal gas) and slag under high-temperature and high-pressure conditions.Synthetic gas needs to handle through operations such as cooling, purifications before coming into operation.The lime-ash that the fuel that drops into produces after gasifying need be lowered the temperature equally to handle and could be discharged vapourizing furnace.
Described gasification technology, wherein entrained flow bed gasification technology is a kind of high effect cleaning coal gasification method.Can be divided into fuel slurry gasification technology and powder fuel gasification technology two classes from the gasified raw material branch; From vapourizing furnace furnace wall material branch, can be divided into water wall type vapourizing furnace (cold-wall type) and fire brick type vapourizing furnace (hot wall type); Can be divided into residual heat recovery type and washing cooling type from synthetic gas cooling and purifying scheme branch; Can be divided into single nozzle type and multi-nozzle type from gasifier nozzle number branch; In the above-mentioned said syngas cooler; afterheat recovery type need adopt waste heat boiler usually; and mainly there is the cost of investment height in waste heat boiler; it is unreliable to move; problems such as easy slagging scorification; existing entrained flow bed gasification technology adopts the washing cooling technology to handle High Temperature High Pressure synthetic gas and molten state lime-ash mostly; as the disclosed a kind of cooling and washing equipment for composite bed high-temperature gas of Chinese patent CN1322795; it is because high-temperature synthesis gas is entrained with a large amount of lime-ash; directly entering scrubbing-cooling chamber contacts with its downtake; because the protection of downtake mainly guarantees by the wall built-up liquid film; occur serious accidents such as downtake burns easily, cause problems such as gasification system parking.And the single series of jets technology, the main existence is subjected to the single nozzle load limit, and maximization and operation stability are not as the problem of multi-nozzle reliable design.
Therefore, develop a kind of be easy to carry out maximize amplify, the extensive high-efficiency gasification technology of stable and reliable operation, be one of gordian technique approach that improves carbonaceous material gasification technology reliability such as coal in China.
Summary of the invention
The purpose of this utility model is to solve cost of investment height that waste heat boiler exists, unreliable, the easy slagging scorification of operation and because high-temperature synthesis gas is entrained with a large amount of lime-ash, problem such as cause that downtake burns provides a kind of stable and reliable operation, the multi-nozzle airflow bed gasification furnace of be easy to maximize amplification, environmental protection and energy saving.
In order to achieve the above object, the utility model provides a kind of multi-nozzle airflow bed gasification furnace, it is characterized in that, comprise the vapourizing furnace body, be provided with Quench conversion chamber below the described vapourizing furnace body, be provided with washing below the Quench conversion chamber except the grit chamber, described vapourizing furnace body, Quench conversion chamber and washing are coaxial setting except the grit chamber, be provided with burner chamber and process burner chamber in the described vapourizing furnace body, the indoor chilling ring that is provided with of described Quench conversion.
Preferably, described vapourizing furnace body comprises the vapourizing furnace housing, top in the vapourizing furnace housing is provided with the vapourizing furnace furnace wall, the top of vapourizing furnace furnace wall is provided with the burner chamber, the middle and upper part of vapourizing furnace furnace wall is provided with the process burner chamber, the inside of vapourizing furnace furnace wall is the vapourizing furnace burner hearth, and the bottom of vapourizing furnace burner hearth is provided with cinder notch under the vapourizing furnace, and cinder notch passes the outlet of vapourizing furnace body under the vapourizing furnace;
Described Quench conversion chamber comprises the guide wire that links to each other with the outlet of vapourizing furnace body, the outside of guide wire is connected with chilling ring, chilling ring is provided with the Quench shower nozzle, and the below of chilling ring is provided with Quench conversion chamber conical lower portion, and Quench conversion chamber conical lower portion is connected with Quench conversion chamber conical outlet;
Described washing comprises the downtake that links to each other with Quench conversion chamber conical outlet except the grit chamber, the below of downtake is provided with slag bath, be provided with brokenly the bubble plate between downtake and the vapourizing furnace housing, the vapourizing furnace housing of broken bubble plate top is provided with syngas outlet, be provided with broken slag device in the slag bath, broken slag device comprises the break grid, and break grid top is provided with tap web break awl, and the broken slag device below is provided with slag-drip opening.
Preferably, described process burner chamber is provided with one deck at least, and every layer is provided with two process burners at least.
Preferably, the burner axis of described process burner and angle that vapourizing furnace radially forms are 0～30 °.
Preferably, cinder notch is cone-shaped under the described vapourizing furnace, and its angle of taper is 15～75 °.
Preferably, the outside of described guide wire is provided with at least one circle chilling ring, is equipped with the Quench shower nozzle that 64～200 edges are circular layout on every circle chilling ring.
Preferably, the shower nozzle of described Quench shower nozzle and the vapourizing furnace first angle angle and the second angle angle axial and that radially form respectively, the first angle angle is 0～60 °, and the second angle angle is-60～60 °, and the second angle angle is opposite with the direction of tangential angle that process burner forms.
Preferably, the angle of taper of described Quench conversion chamber conical lower portion is 15～75 °.
Preferably, described guide wire be shaped as bell mouth shape, its flaring angle is 5～45 °.
Preferably, described burner chamber run through the vapourizing furnace housing the top and with the coaxial setting of vapourizing furnace body, indoor process burner, igniter burner or the baker burner of being provided with of burner.
Preferably, described broken bubble plate is provided with one deck at least, and every layer of broken bubble plate comprises skeleton foam-breaking strip and peripheral foam-breaking strip, is equipped with the broken bubble of downward taper tooth below skeleton foam-breaking strip and the peripheral foam-breaking strip.
Preferably, described break grid is dome-shaped, and is provided with one deck at least, grid aperture 20 * 20～200 * 200mm of break grid.
Preferably, described downtake is cylindric, and coaxial with Quench conversion chamber, and the ratio of downtake diameter and vapourizing furnace body internal diameter is 0.1～0.6.
Compared to existing technology, the utility model is put and is had following beneficial effect:
(1) adopt Quench conversion chamber to separate combined system with washing except the grit chamber, improved the efficient of gasification product cooling, washing, purifying greatly, and stable equipment operation and reliability are improved greatly, both solved syngas outlet band ash problem, problems such as downtake high temperature corrosion and ablation have also been solved, also can be water vapor, the CO transformationreation provides logistics condition and reaction compartment, and the synthetic gas cooling treatment system slagging scorification of vapourizing furnace bottom, stifled slag probability is reduced greatly;
(2) adopted the vapourizing furnace up-set type, synthetic gas and lime-ash are flowed downward in the same way, and descending the cinder notch position to carry out the large space sprinkling Quench, can effectively remove lime-ash in the synthetic gas, and make its curing rapidly, and compare with gas, the reverse shunting vapourizing furnace of slag, simplified device structure greatly, reduced facility investment, not only environmental protection but also energy-conservation;
(3) the vapourizing furnace body of Cai Yonging is provided with the tangential multi-nozzle in side, avoided collision type to produce strong bump flame ablation top of gasification furnace refractory brick, improve the residence time of fuel in vapourizing furnace simultaneously, thereby improved efficiency of carbon conversion and cold gas efficiency, and be easy to the amplification of maximizing.
Description of drawings
Fig. 1 is a kind of structural representation of multi-nozzle airflow bed gasification furnace;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the B-B sectional view of Fig. 1;
Fig. 4 is the schematic cross-section of broken bubble plate.
Description of reference numerals
1-vapourizing furnace housing; 2-vapourizing furnace furnace wall; 3-vapourizing furnace burner hearth; Cinder notch under the 4-vapourizing furnace; The outlet of 5-vapourizing furnace body; 6-Quench conversion chamber conical outlet; The 7-downtake; The broken bubble of 8-plate; The peripheral foam-breaking strip of 8a-; 8b-skeleton foam-breaking strip; The 9-slag bath; The 10-slag-drip opening; 11a-process burner chamber; 11b-burner chamber; The 12-guide wire; 13-Quench shower nozzle; The 14-chilling ring; The 15-syngas outlet; The 16-process burner; 17-break grid; 18-Quench conversion chamber conical lower portion; 19-tap web break awl, 20-washing water inlet, the outlet of 21-washing water.
Embodiment
For the utility model is become apparent, now with preferred embodiment, and conjunction with figs. is described in detail below.
The utility model is a kind of multi-nozzle airflow bed gasification furnace, comprises three chief components, is respectively vapourizing furnace body (regional I gasifies), Quench conversion chamber (cooled region II) and washing except grit chamber (the regional III of washing slagging-off).As shown in Figure 1, be a kind of structural representation of multi-nozzle airflow bed gasification furnace.Be mounted with Quench conversion chamber below the vapourizing furnace body, be mounted with washing below the Quench conversion chamber except the grit chamber, vapourizing furnace body, Quench conversion chamber and washing are coaxial setting except the grit chamber.Top of gasification furnace adopts the dome-shaped design, and its diameter is consistent with the vapourizing furnace barrel diameter, and the design of straight section formula is adopted in the vapourizing furnace bottom.
The vapourizing furnace body comprises the burner chamber 11b of vapourizing furnace housing 1, furnace internal-lining refractory liner (can be water wall lining or refractory liner), vapourizing furnace burner hearth 3, top of gasification furnace and the process burner chamber 11a of side, and composition such as cinder notch 4 under the vapourizing furnace.Top in the vapourizing furnace housing 1 is equipped with vapourizing furnace furnace wall 2, and the top of vapourizing furnace furnace wall 2 is equipped with burner chamber 11b, burner chamber 11b run through vapourizing furnace housing 1 the top and with the coaxial setting of vapourizing furnace body.Burner chamber 11b can be used as the process burner chamber, also can be used as auxiliary burning nozzle chambers such as igniter burner chamber or baker burner chamber, or as manhole.The middle and upper part of vapourizing furnace furnace wall 2 is equipped with process burner chamber 11a, and process burner chamber 11a arranges one deck at least, and every layer arranges two process burners 16 at least, and process burner 16 adopts mechanical system to be fixed in the 11a of process burner chamber.Process burner 16 on the same layer plane in side adopts circle of contact design, arranges evenly that along the vapourizing furnace circumference burner axis of process burner 16 and the angle theta that vapourizing furnace radially forms are 0～30 °, as shown in Figure 2.The inside of vapourizing furnace furnace wall 2 is vapourizing furnace burner hearth 3, and the bottom of vapourizing furnace burner hearth 3 is cinder notch 4 under the vapourizing furnace, and cinder notch 4 is cone-shaped under the vapourizing furnace, and its angle of taper δ is 15～75 °.Cinder notch 4 passes vapourizing furnace body outlet 5 under the vapourizing furnace.
Quench conversion chamber comprises and chilling ring 14, the edge of vapourizing furnace body outlet 5 guide wires that link to each other 12, the annular compositions such as being installed in Quench shower nozzle 13 on the chilling ring 14 and Quench conversion chamber conical lower portion 18 that is circular layout.The place is equipped with chilling ring 14 and guide wire 12 at Quench conversion chamber inlet, and chilling ring 14 is connected with the outside of guide wire 12, guide wire 12 be shaped as bell mouth shape, its flaring angle ε is 5～45 °.Guide wire 12 outsides are equipped with at least one circle chilling ring 14, all are equipped with 64～200 on every circle chilling ring 14 along the Quench shower nozzle 13 of chilling ring 14 circumference, as shown in Figure 3.The first angle angle λ that the shower nozzle of Quench shower nozzle 13 and vapourizing furnace axially form is 0～60 °, and the axial spray angle of each circle shower nozzle can be inconsistent.The second angle angle [alpha] that the shower nozzle of Quench shower nozzle 13 and vapourizing furnace radially form is-60～60 °, and opposite with the direction of the process burner 16 tangential angle θ that forms, forms reverse racemization.The below of chilling ring 14 is Quench conversion chamber conical lower portion 18,15～75 ° of the angle of taper ω of Quench conversion chamber conical lower portion 18, and conical design can guarantee that spray water/entrainment with steam part lime-ash flows downward.Quench conversion chamber conical lower portion 18 is connected with Quench conversion chamber conical outlet 6.
The downtake 7 that washing links to each other with Quench conversion chamber conical outlet 6 except the grit chamber comprises, slag bath 9, break grid 17, compositions such as broken bubble plate 8, slag-drip opening 10 and syngas outlet 15.The center of removing the grit chamber in washing is equipped with downtake 7, and its bottom is slag bath 9, and downtake 7 and the coaxial setting in Quench conversion chamber all adopt columnar structured design.The ratio of downtake 7 diameters and vapourizing furnace body internal diameter is 0.1～0.6.Bubble plate 8 is installed brokenly between downtake 7 and the vapourizing furnace housing 1, and broken bubble plate 8 adopts skeleton design, and broken bubble plate 8 is equipped with one deck at least, and every layer of broken bubble plate 8 is made up of skeleton foam-breaking strip 8b and peripheral foam-breaking strip 8a, as shown in Figure 4.The following broken bubble of the downward taper tooth that all is equipped with of skeleton foam-breaking strip 8b and peripheral foam-breaking strip 8a.(namely removing middle and upper part, side, grit chamber in washing) has syngas outlet 15 on the vapourizing furnace housing 1 of broken bubble plate 8 tops, and syngas outlet 15 bores determine that according to gasifying furnace device design output control vapourizing furnace syngas outlet 15 flow velocitys are 3～15m/s.In the slag bath 9 broken slag device is installed, broken slag device comprises break grid 17 and tap web break awl 19, tap web break awl 19 is installed in the top of break grid 17, break grid 17 adopts the dome-shaped grill designs, and be provided with one deck at least, grid aperture 20 * 20～200 * 200mm of break grid 17, the broken slag device below is slag-drip opening 10.Washing water can be from the washing water inlet 20 enter slag bath 9, after treatment, it are discharged from washing water outlet 21.
The technological process of multi-nozzle airflow bed gasification furnace is mainly divided three subprocess, is described below respectively:
Process one: vaporising fuel and vaporized chemical simultaneously by process burner 16 from vapourizing furnace side process burner chamber 11a or unite burner chamber, top 11b simultaneously and spray into vapourizing furnace, high temperature, the complicated gasification reaction of high pressure take place in vapourizing furnace burner hearth 3, the multi-nozzle that adopts the circle of contact to arrange will form eddy flow in vapourizing furnace burner hearth 3, to molten state ash solid impurity particle be got rid of to vapourizing furnace furnace wall 2 under the effect of mass force, form stable liquid slag film, be beneficial to slag tap, improve the residence time and efficiency of carbon conversion simultaneously greatly.Product after gasification cinder notch 4 under vapourizing furnace enters Quench conversion chamber, and cinder notch 4 stream temperature generally remain on more than 1200 ℃ according to coal ash melting characteristic difference under the vapourizing furnace.
Process two: the High Temperature High Pressure synthetic gas is being carried the liquid lime-ash that produces in the gasification secretly and is being entered Quench conversion chamber by guide wire 12, under the guiding of guide wire 12, gas slag mixture below the guide wire 12 on from chilling ring 14 under the spray effect of Quench shower nozzle 13, synthetic gas is lowered the temperature rapidly, the molten state lime-ash solidifies rapidly, converge mobile after the curing downwards, and under the spray effect at deflection center, Quench shower nozzle 13 sides, synthetic gas is carried lime-ash secretly and is flowed to the center gathering, the final flow direction washed except the grit chamber, synthetic gas and the lime-ash stream temperature of this moment are generally between 250～500 ℃, simultaneously certain water vapor also takes place in that the Quench conversion is indoor, the transformationreation of CO, synthetic or hydrogen manufacturing ready for the downstream chemical industry.
Process three: Quench conversion chamber conical outlet 6 places of spray water/steam below Quench conversion chamber compile, and flow downward, and at the downtake 7 inwalls formation liquid film of washing except the grit chamber, avoid the erosion of synthetic gas and lime-ash stream with further protection downtake 7.The lime-ash that solidifies through Quench flows from top to bottom at the lower edge downtake 7 of carrying secretly of synthetic gas, in the process of flowing downward, the grey solid impurity particle that synthetic gas is carried secretly is captured by bottom slag bath 9, and after break grid 17 break filtration treatment, discharge vapourizing furnace through slag-drip opening 10 downwards, synthetic gas is then through entering the annular space that forms between downtake 7 and the vapourizing furnace housing 1 behind slag bath 9 bubble cleanings, and it is upwards mobile along annular space, the foam of carrying secretly and grey solid impurity particle are further removed by broken bubble plate 8, fully the slagging-off cooling is discharged vapourizing furnace by vapourizing furnace side syngas outlet 15, and this moment, the synthetic gas temperature remained on about 200 ℃ usually.
Through above three processes, namely finished complete process process of the present utility model.
The fuel tolerance that the utility model adopts is wide, is chosen as carbonic solid fuels or its formulated slurry liquid fuels such as coal, and namely its fuel form can be solid powder art or liquid slurry; The vaporized chemical that adopts is chosen as water vapor, air, pure oxygen or oxygen concentration greater than 21% oxygen-rich air.The material of vapourizing furnace furnace wall 2 can adopt water wall structure or firebrick structure design, and water wall structure can be selected shell and tube, coil tube type or its array configuration for use.
The utility model is described in further detail to carry out result that corresponding test obtains below in conjunction with the multi-nozzle airflow bed gasification furnace that adopts the utility model to provide:
Embodiment 1
The dry coal powder pressurization multi-nozzle airflow bed gasification furnace of one cover day 3000 tons of coals of processing, the interior diameter of gasification reactor chamber housing (being vapourizing furnace furnace wall 2) is 3850mm, cinder notch 4 internal diameter 1100mm under the vapourizing furnace.Four side process burners 16 of one deck are evenly arranged in side, vapourizing furnace body middle and upper part, process burner plane, side and gasification reactor chamber axis normal, radially angle excursion θ is 4.5 °, spray into 100% coal dust, 100% water vapor and 100% purity oxygen altogether by four side process burners 16, burner chamber, top 11b is as igniting/startup burner.
The barrel diameter of synthetic gas Quench conversion chamber is 4800mm, chilling ring 14 arranges one deck, Quench shower nozzle 13 is evenly arranged 128 along chilling ring 14, the spray liquid water, be provided with one deck altogether, the first angle angle λ that Quench shower nozzle 13 axially sprays is 15 °, and the second angle angle [alpha] of radial spray is-3 °, the about 5m/s of jet velocity.
Quench conversion chamber guide wire 12 flaring angle ε are made as 15 °.
Washing is provided with 3 layers of broken bubble plate 8 and one deck break grid 17, grid aperture 150 * 150mm except grit chamber's downtake 7 diameter 1500mm.
Vapourizing furnace body syngas outlet 15 diameter 650mm.
The water wall design is adopted in vapourizing furnace furnace wall 2.
120 ℃ liquid water under the indoor employing 4.0Mpa of washing slagging-off sprays.
Can be obtained the analytical data (as shown in table 2) of coal analysis (as shown in table 1) and gasification reactor apparatus outlet synthetic gas by above-mentioned gasification reactor apparatus:
Table 1 coal analysis table
Other main operational conditions:
Service temperature: 1623K;
Working pressure: 4.0MPa;
Coal dust delivery of carrier gas medium: nitrogen;
Oxygen coal ratio: 0.48kg/kg;
Steam coal ratio: 0.03kg/kg;
Steam-in temperature: 623K;
Oxygen intake temperature: 298K;
Oxygen purity: 99.6%.
Gasification reactor apparatus outlet synthetic gas analytical data is:
Table 2 vapourizing furnace body outlet gas composition (Vol%) and following cinder notch place temperature (K) data
| H 2 | CO | CO 2 | H 2O | CH 4 | H 2S | COS | N 2 | T |
| 29.95 | 59.67 | 2.28 | 3.87 | 0.31 | 0.50 | 0.01 | 3.41 | 1732 |
Gasification reactor apparatus outlet synthetic gas temperature: 478K;
Efficiency of carbon conversion: 99.5%;
Active constituent content (H in the gasification reactor apparatus outlet coal gas
2+ CO): 93.23% (butt);
Whole cold gas efficiency: 83.5%.
Compared with prior art, the gasification technology ratio that the utility model provides: efficiency of carbon conversion improves 〉=2%, and cold gas efficiency improves 〉=5%, and the effective pneumatolytic of synthetic gas divides ratio to improve 〉=5%, than oxygen consumption (Nm
3/ kNm
3(H
2+ CO)) and reduce 〉=12, than coal consumption (kg/kNm
3(H
2+ CO)) and reducing 〉=55, working cost reduces 〉=10%, and investment cost reduces 〉=10%.
Embodiment 2
The coal water slurry pressurization multi-nozzle airflow bed gasification furnace of one cover day 3000 tons of coals of processing, vapourizing furnace body internal diameter (being vapourizing furnace furnace wall 2) is 4000mm, cinder notch 4 internal diameter 1000mm under the vapourizing furnace.Four side process burners 16 of one deck are evenly arranged in side, vapourizing furnace body middle and upper part, process burner plane, side and gasification reactor chamber axis normal, radially angle excursion θ is 1.8 °, is sprayed into 100% coal water slurry and 100% purity oxygen altogether by the process burner in four side process burners 16 and burner chamber, the top 11b.
The barrel diameter of synthetic gas Quench conversion chamber is 4800mm, chilling ring 14 arranges one deck, Quench shower nozzle 13 is evenly arranged 128 along chilling ring 14, be provided with one deck altogether, the first angle angle λ that Quench shower nozzle 13 axially sprays is 30 °, the second angle angle [alpha] of radial spray is-0.5 °, the about 8m/s of jet velocity.
Quench conversion chamber guide wire 12 flaring angle ε are made as 30 °.
Washing is provided with 3 layers of broken bubble plate 8 and one deck break grid 17, grid aperture 180 * 180mm except grit chamber's downtake 7 diameter 1400mm.
Vapourizing furnace body syngas outlet 15 diameter 680mm.
The refractory brick design is adopted in vapourizing furnace furnace wall 2.
Used water coal slurry concentration 64%.
130 ℃ water vapor under the indoor employing 6.5Mpa of washing slagging-off sprays.
Can be obtained the analytical data (as shown in table 4) of coal analysis (as shown in table 3) and gasification reactor apparatus outlet synthetic gas by above-mentioned gasification reactor apparatus:
Table 3 coal analysis table
Other main technique operational conditions:
Service temperature: 1573K;
Working pressure: 6.5MPa;
Coal water slurry collocating medium: service water and chemical additive;
Oxygen to carbon atom ratio: 0.95g;
Oxygen intake temperature: 298K;
Oxygen purity: 99.6%.
Gasification reactor apparatus outlet synthetic gas analytical data is:
Table 4 gasification installation outlet gas composition (Vol%) and following cinder notch place temperature (K) data
| H 2 | CO | CO 2 | H 2O | CH 4 | H 2S | COS | N 2 | T |
| 16.16 | 17.23 | 4.62 | 61.98 | 0.003 | 0.001 | 0.001 | 0.003 | 471 |
Gasification reactor apparatus outlet synthetic gas temperature: 471K;
Efficiency of carbon conversion: 98.5%;
Active constituent content in the coal gas (H2+CO): 87.82% (butt);
Whole cold gas efficiency: 80.6%.
Compared with prior art, the gasification technology ratio that the utility model provides: efficiency of carbon conversion improves 〉=1%, and cold gas efficiency improves 〉=2%, and the effective pneumatolytic of synthetic gas divides ratio to improve 〉=4%, than oxygen consumption (Nm
3/ kNm
3(H
2+ CO)) and reduce 〉=10, than coal consumption (kg/kNm
3(H
2+ CO)) and reducing 〉=50, working cost reduces 〉=15%, and investment cost reduces 〉=15%.
Claims (13)
1. multi-nozzle airflow bed gasification furnace, it is characterized in that, comprise the vapourizing furnace body, be provided with Quench conversion chamber below the described vapourizing furnace body, be provided with washing below the Quench conversion chamber except the grit chamber, described vapourizing furnace body, Quench conversion chamber and washing are coaxial setting except the grit chamber, are provided with burner chamber (11b) and process burner chamber (11a) in the described vapourizing furnace body, the indoor chilling ring (14) that is provided with of described Quench conversion.
2. a kind of multi-nozzle airflow bed gasification furnace as claimed in claim 1, it is characterized in that, described vapourizing furnace body comprises vapourizing furnace housing (1), top in the vapourizing furnace housing (1) is provided with vapourizing furnace furnace wall (2), the top of vapourizing furnace furnace wall (2) is provided with burner chamber (11b), the middle and upper part of vapourizing furnace furnace wall (2) is provided with process burner chamber (11a), the inside of vapourizing furnace furnace wall (2) is vapourizing furnace burner hearth (3), the bottom of vapourizing furnace burner hearth (3) is provided with cinder notch under the vapourizing furnace (4), and cinder notch under the vapourizing furnace (4) passes vapourizing furnace body outlet (5);
Described Quench conversion chamber comprises the guide wire (12) that links to each other with vapourizing furnace body outlet (5), the outside of guide wire (12) is connected with chilling ring (14), chilling ring (14) is provided with Quench shower nozzle (13), the below of chilling ring (14) is provided with Quench conversion chamber conical lower portion (18), and Quench conversion chamber conical lower portion (18) is connected with Quench conversion chamber conical outlet (6);
Described washing comprises the downtake (7) that links to each other with Quench conversion chamber conical outlet (6) except the grit chamber, the below of downtake (7) is provided with slag bath (9), be provided with brokenly bubble plate (8) between downtake (7) and the vapourizing furnace housing (1), the vapourizing furnace housing (1) of broken bubble plate (8) top is provided with syngas outlet (15), slag bath is provided with broken slag device in (9), broken slag device comprises break grid (17), and break grid (17) top is provided with tap web break awl (19), and the broken slag device below is provided with slag-drip opening (10).
3. a kind of multi-nozzle airflow bed gasification furnace as claimed in claim 2 is characterized in that, described process burner chamber (11a) is provided with one deck at least, and every layer is provided with two process burners (16) at least.
4. a kind of multi-nozzle airflow bed gasification furnace as claimed in claim 3 is characterized in that, the angle (θ) that the burner axis of described process burner (16) and vapourizing furnace radially form is 0～30 °.
5. a kind of multi-nozzle airflow bed gasification furnace as claimed in claim 2 is characterized in that, cinder notch under the described vapourizing furnace (4) is cone-shaped, and its angle of taper (δ) is 15～75 °.
6. a kind of multi-nozzle airflow bed gasification furnace as claimed in claim 2 is characterized in that, the outside of described guide wire (12) is provided with at least one circle chilling ring (14), is equipped with the Quench shower nozzle (13) that 64～200 edges are circular layout on every circle chilling ring (14).
7. a kind of multi-nozzle airflow bed gasification furnace as claimed in claim 6, it is characterized in that, the shower nozzle of described Quench shower nozzle (13) and the vapourizing furnace first angle angle (λ) and the second angle angle (α) axial and that radially form respectively, the first angle angle (λ) is 0～60 °, the second angle angle (α) is-60～60 °, and the second angle angle (α) is opposite with the direction of process burner (16) the tangential angle that forms (θ).
8. a kind of multi-nozzle airflow bed gasification furnace as claimed in claim 2 is characterized in that, 15～75 ° of the angle of taper (ω) of described Quench conversion chamber conical lower portion (18).
9. a kind of multi-nozzle airflow bed gasification furnace as claimed in claim 2 is characterized in that, described guide wire (12) be shaped as bell mouth shape, its flaring angle (ε) is 5～45 °.
10. a kind of multi-nozzle airflow bed gasification furnace as claimed in claim 2, it is characterized in that, described burner chamber (11b) run through vapourizing furnace housing (1) the top and with the coaxial setting of vapourizing furnace body, can be provided with process burner, igniter burner or baker burner in burner chamber (11b).
11. a kind of multi-nozzle airflow bed gasification furnace as claimed in claim 2, it is characterized in that, described broken bubble plate (8) is provided with one deck at least, every layer of broken bubble plate (8) comprises skeleton foam-breaking strip (8b) and peripheral foam-breaking strip (8a), is equipped with downward taper below skeleton foam-breaking strip (8b) and the peripheral foam-breaking strip (8a) and breaks and steep tooth.
12. a kind of multi-nozzle airflow bed gasification furnace as claimed in claim 2 is characterized in that described break grid (17) is dome-shaped, and is provided with one deck at least, grid aperture 20 * 20～200 * 200mm of break grid (17).
13. a kind of multi-nozzle airflow bed gasification furnace as claimed in claim 2 is characterized in that described downtake (7) is cylindric, and coaxial with Quench conversion chamber, the ratio of downtake (7) diameter and vapourizing furnace body internal diameter is 0.1～0.6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200997868U CN203144350U (en) | 2013-03-05 | 2013-03-05 | Entrained-flow bed gasifying furnace with multiple nozzles |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103146434A (en) * | 2013-03-05 | 2013-06-12 | 上海锅炉厂有限公司 | Multi-nozzle entrained-flow bed gasification furnace |
| CN104673393A (en) * | 2015-02-27 | 2015-06-03 | 新奥科技发展有限公司 | Coal gasification system, coal gasification method and solid chiller |
| CN105176592A (en) * | 2015-09-11 | 2015-12-23 | 哈尔滨工业大学 | Strong-rotation pulverized coal gasification device with gasifying agents arranged in circumferential direction in staggered manner and gasification method |
| CN115029162A (en) * | 2022-08-10 | 2022-09-09 | 北京中瀚能源有限公司 | Gasification device and staged gasification method |
-
2013
- 2013-03-05 CN CN2013200997868U patent/CN203144350U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103146434A (en) * | 2013-03-05 | 2013-06-12 | 上海锅炉厂有限公司 | Multi-nozzle entrained-flow bed gasification furnace |
| CN103146434B (en) * | 2013-03-05 | 2014-11-12 | 上海锅炉厂有限公司 | Multi-nozzle entrained-flow bed gasification furnace |
| CN104673393A (en) * | 2015-02-27 | 2015-06-03 | 新奥科技发展有限公司 | Coal gasification system, coal gasification method and solid chiller |
| CN104673393B (en) * | 2015-02-27 | 2017-08-29 | 新奥科技发展有限公司 | A kind of gasification system, coal gasification method and solid chiller |
| CN105176592A (en) * | 2015-09-11 | 2015-12-23 | 哈尔滨工业大学 | Strong-rotation pulverized coal gasification device with gasifying agents arranged in circumferential direction in staggered manner and gasification method |
| CN115029162A (en) * | 2022-08-10 | 2022-09-09 | 北京中瀚能源有限公司 | Gasification device and staged gasification method |
| CN115029162B (en) * | 2022-08-10 | 2022-11-15 | 北京中瀚能源有限公司 | Gasification device and staged gasification method |
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