CN202688282U - Gasification furnace - Google Patents

Gasification furnace Download PDF

Info

Publication number
CN202688282U
CN202688282U CN 201220134018 CN201220134018U CN202688282U CN 202688282 U CN202688282 U CN 202688282U CN 201220134018 CN201220134018 CN 201220134018 CN 201220134018 U CN201220134018 U CN 201220134018U CN 202688282 U CN202688282 U CN 202688282U
Authority
CN
China
Prior art keywords
cavity
chilled water
vapourizing furnace
chamber
water shower
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN 201220134018
Other languages
Chinese (zh)
Inventor
黄斌
姚敏
吴跃
张玉柱
蒙军
钱钧
罗春桃
井云环
雍晓静
姜永
曾庆宇
丁磊
张家铄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenhua Group Corp Ltd
Shenhua Ningxia Coal Industry Group Co Ltd
Original Assignee
Shenhua Group Corp Ltd
Shenhua Ningxia Coal Industry Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenhua Group Corp Ltd, Shenhua Ningxia Coal Industry Group Co Ltd filed Critical Shenhua Group Corp Ltd
Priority to CN 201220134018 priority Critical patent/CN202688282U/en
Application granted granted Critical
Publication of CN202688282U publication Critical patent/CN202688282U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

The utility model provides a gasification furnace which comprises a shell body, a combustion chamber, a quenching chamber, a downcomer, quench water sprayers and a slag water tank. The shell body is provided with an air outlet. The combustion chamber is arranged in the shell body. The quenching chamber is arranged under the combustion chamber inside the shell body and comprises a cavity and a funnel portion. A first end of the cavity is connected with an outlet of the combustion chamber. A second end of the cavity is connected with an inlet of the funnel portion. An outlet of the funnel portion is connected with a first end of the downcomer. The quench water sprayers are arranged on the inner wall of the cavity. A second end of the downcomer is inserted below the liquid level of the slag water tank. A sealed ring cavity is formed between the shell body and the quenching chamber and is connected with the air outlet. The quenching chamber of the gasification furnace comprises the cavity with big size arranged on the upper portion and the funnel portion arranged in the middle or on the lower portion. Consequently, circulating space on the upper portion inside the quenching chamber is increased, and the problems of agglomeration and blocking of coal slag are solved. Therefore, the gasification furnace has the advantages of long service life, high heat and mass transfer efficiency, simple structure and low cost.

Description

Vapourizing furnace
Technical field
The utility model relates to the coal gasification equipment field, more specifically, relates to a kind of vapourizing furnace.
Background technology
Gasification of coal refers to utilize under certain temperature and pressure condition vaporized chemical and coal reaction to generate the technology of crude synthesis gas, is an important method of coal being carried out chemical process.Coal gasification, especially high pressure, mass air stream bed gasification technology are the mainstream technologys of current gasification.Using the common feature that air flow bed gasifies to coal is pressurization (3.0MPa-6.0MPa), high temperature (1300-1700 ℃) and fine granularity.But process at coal, the charging form with mode, realize mixing, countermeasure is totally different on the technical units such as deslagging, waste heat recovery, thereby the technology group of formation different-style.At present, the typical vapourizing furnace of the pressurized air flow bed gasification technology of industrial applications mainly contains:
(1) Texaco (Texaco) vapourizing furnace: this vapourizing furnace is the coal water slurry gasification equipment of U.S. Texaco Petroleum Maatschappij (Netherland) B.V exploitation, and its shock chamber comprises downtake and upcast.Because the space of downtake and upcast is less, in service at vapourizing furnace, downtake is prone to the problem of dross, obstruction, can cause downtake bulge and flexural deformation when serious, thereby vapourizing furnace is caused damage, and is one of major reason that causes the vapourizing furnace parking.In addition, because raw gas and the free air space of lime-ash in this shock chamber are little, therefore, also can bring the inefficient problem of heat and mass.
(2) four nozzle vapourizing furnaces: four nozzle vapourizing furnaces are the coal water slurry gasification equipment of East China University of Science's exploitation, the structural similitude of the structure of its shock chamber and the shock chamber of Texaco gasifier, difference is, only downtake is set in the shock chamber and upcast is not set.This design has increased the rising space and the caloic transmission area after gas goes out water-bath.But, because the downtake in the shock chamber (being used for raw gas descends with lime-ash) is still identical with Texaco gasifier, therefore also can there be the problem identical with Texaco gasifier, can't move the coal of high ash content.
(3) Shell vapourizing furnace: this vapourizing furnace is Shell Co. Ltd's exploitation, adopts dry coal powder gasification, pot destroying process, and dry method dust has complex process, invests large shortcoming.It is generally acknowledged the Shell gasification technology that adopts pot destroying process and be not suitable for Coal Chemical Industry, and be applicable to generating.
(4) space flight vapourizing furnace: the space flight vapourizing furnace is by the exploitation of space industry department, adopts dry coal powder gasification, and its shock chamber is identical with Texaco gasifier.
(5) GSP vapourizing furnace: the GSP vapourizing furnace is the exploitation of front German Democratic Republic GDR fuel institute, at present this technology pass away a Subsidiary Company all.Do not have downtake and upcast in its shock chamber, raw gas and liquid lime-ash are directly cooled off by the chilled water that shower nozzle sprays.Circulation passage is large in the shock chamber of this vapourizing furnace, the gas-liquid heat-transfer space is large, heat exchange rate is high, can use the coal (up to 26%, the slagging scorification blockage problem does not appear in vapourizing furnace yet such as the peaceful coal GSP of Shenhua vapourizing furnace coal for gasification ash content, and vapourizing furnace itself can normally move) of high ash oontent.But, because the raw gas dustiness by vapourizing furnace output is high, bring problem for follow-up raw gas washing system, can cause pipeline, valve, the equipment abrasion of raw gas washing system very serious, usually the work-ing life of these pipelines, valve even also not enough January.The problems such as in addition, after the processing of raw gas washing system, the raw gas dustiness is still higher, and this can cause again the transformation system well heater to stop up, the protection bed layer pressure is large.Therefore, the raw gas dustiness is high, has become the matter of utmost importance of restriction gasification installation long-period stable operation.The best approach that addresses this problem is still carried out the deep purifying processing in vapourizing furnace inside to crude synthesis gas, uses the least possible ash band of raw gas of vapourizing furnace.
In sum, the shock chamber of Texaco gasifier, four nozzle vapourizing furnaces and space flight vapourizing furnace adopts downtake and water-bath structure design, and the raw gas dustiness of its output is low, but the caloic transfer efficiency is also relatively low; In addition, for high-ash coal, be prone to the problem of slagging scorification, obstruction, make the gasification installation can't long-period stable operation.The shock chamber of GSP vapourizing furnace not only caloic transfer efficiency is high, and applicable to the coal of high ash oontent, the problem of slagging scorification, obstruction can not occur; But the dust content of gas of its output is high, can bring a lot of problems to follow-up system, also can affect the long-term stability operation of gasification installation.
The utility model content
The utility model aims to provide a kind of vapourizing furnace, with slagging scorification, obstruction, the high problem of vapourizing furnace outlet raw gas dustiness that solves prior art.
For solving the problems of the technologies described above, according to an aspect of the present utility model, provide a kind of vapourizing furnace, comprising: housing is provided with the air outlet on the housing; Combustion chamber, combustion chamber are arranged in the housing; Shock chamber, shock chamber are arranged in the housing and are positioned at the below of combustion chamber; The shock chamber comprises cavity and pars infundibularis; The first end of cavity is connected with the outlet of combustion chamber, and the second end of cavity is connected with the entrance of pars infundibularis; Downtake, the outlet of pars infundibularis is connected with the first end of downtake; Chilled water shower nozzle, chilled water shower nozzle are arranged on the inwall of cavity; Pulp water pond, pulp water pond are arranged in the housing and are positioned at the below of shock chamber, and the second end of downtake inserts below the liquid level in pulp water pond; Form the annular chamber of sealing between housing and the shock chamber, annular chamber is connected with the air outlet.
Further, the number of chilled water shower nozzle is a plurality of.
Further, a plurality of chilled water shower nozzles vertically are divided on the inwall that multilayer is arranged on cavity.
Further, every layer of chilled water shower nozzle circumferentially is evenly arranged along cavity, and adjacent two-layer chilled water shower nozzle arranged crosswise.
Further, the nozzle of at least one deck chilled water shower nozzle in the multilayer chilled water shower nozzle is towards the direction setting of the inwall of cavity, and the nozzle of all the other each layer chilled water shower nozzles in the multilayer chilled water shower nozzle arranges towards the inside of shock chamber.
Further, a plurality of chilled water shower nozzles are arranged on identical At The Height.
Further, pars infundibularis comprises the liner of being made by silicon carbide, and the upper end of downtake is coated with carbide layers, and the length of carbide layers is 10~100cm.
Further, vapourizing furnace also comprises the de-bubble bar, and the de-bubble bar is arranged on the inside of annular chamber.
Further, the number of de-bubble bar is a plurality of, and a plurality of de-bubble bars are divided into multilayer and are arranged in the annular chamber, and the de-bubble bar has zigzag structure or spike structure, arranged crosswise between the adjacent two layers de-bubble bar.
The shock chamber of the vapourizing furnace in the utility model comprises the larger cavity of superposed volume and is positioned at the pars infundibularis of middle part or bottom, therefore, increased the space of shock chamber's internal upper part circulation, avoid the problem of lime-ash slagging scorification and obstruction, had long service life, the caloic transfer efficiency is fast, simple in structure, cost is low characteristics.
Description of drawings
The accompanying drawing that consists of the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 has schematically shown the structural representation in the utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
As shown in Figure 1, the vapourizing furnace in the utility model comprises: housing 10, combustion chamber 80, shock chamber 20, downtake 90, chilled water shower nozzle 70 and pulp water pond 30.Wherein, be provided with air outlet 11 on the housing 10, combustion chamber 80 is arranged in the housing 10, and shock chamber 20 is arranged in the housing 10 and is positioned at the below of combustion chamber 80.Preferably, the top of shock chamber 20 is connected with the housing of vapourizing furnace by the mode of welding.Especially, any combustion chamber of the prior art can be adopted in combustion chamber 80.
Shock chamber 20 comprises cavity 21 and pars infundibularis 22, and the first end of cavity 21 is connected with the outlet of combustion chamber 80, and the second end of cavity 21 is connected with the entrance of pars infundibularis 22, and the outlet of pars infundibularis 22 is connected with the first end of downtake 90.Preferably, pars infundibularis 22 comprises the liner of being made by silicon carbide, and the upper end of downtake 90 is coated with carbide layers, and the length of carbide layers is 10~100cm.Like this, can improve the abrasion resistance of pars infundibularis 22 and downtake 90, increase the service life.Further, cavity 21 is arranged on the top of shock chamber 20, and pars infundibularis 22 is arranged on middle part or the bottom of shock chamber 20.As shown in Figure 1, the size of the opening of the upper end of pars infundibularis 22 is greater than the size of the opening of lower end.Because shock chamber 20 is divided into two sections (being cavity 21 and pars infundibularis 22), raw gas and liquid lime-ash are increased at the free air space on top, shock chamber, avoided the problem of lime-ash slagging scorification and obstruction.Simultaneously, also be conducive to the abundant contact of gas-liquid, strengthened heat transfer efficiency and washing effect.The middle part of shock chamber or bottom are punctured into funnel shaped pars infundibularis, before raw gas and lime-ash touch pars infundibularis, are come slag to become the solid lime-ash by the liquid state after the chilled water Quench, thereby, the slagging scorification latch up phenomenon can not occur at the pars infundibularis place.Further, after the pars infundibularis of shock chamber is collected raw gas and lime-ash, the raw gas of collecting and lime-ash enter into below the liquid level in pulp water pond by downtake 90, thereby realized to the again dedusting of crude synthesis gas (raw gas after namely processing through Quench) a large amount of thin ash in the crude synthesis gas being entered in the pulp water pond.
Chilled water shower nozzle 70 is arranged on the inwall of cavity 21 (special, chilled water shower nozzle 70 is close to the inwall setting of cavity 21), in order to the high temperature rough gas of combustion chamber 80 output is cooled off and washs, simultaneously, the liquid lime-ash of molten state can also be cooled off rapidly and be solidified into solid particulate.By the chilled water of chilled water shower nozzle 70 ejection, can raw gas and the liquid lime-ash of high temperature be sprayed and thermal exchange on the one hand, on the other hand, can also cool off raw gas, washing and humidification.
Preferably, the number of chilled water shower nozzle 70 is a plurality of.Further, a plurality of chilled water shower nozzles 70 vertically are divided on the inwall that multilayer is arranged on cavity 21, can also determine according to the payload of vapourizing furnace number and the number of plies of chilled water shower nozzle 70.By chilled water shower nozzle 70 being arranged on the form of multilayer, can further improve chill effect.Preferably, every layer of chilled water shower nozzle 70 circumferentially is evenly arranged along cavity 21, and chilled water shower nozzle 70 arranged crosswise of adjacent two layers, can further improve chill effect like this.Especially, the nozzle of at least one deck chilled water shower nozzle 70 in the multilayer chilled water shower nozzle 70 is towards the direction setting (namely the inwall to cavity 21 sprays) of the inwall of cavity 21,20 inside arranges the inside spray of cavity 21 (namely to) to the nozzle of all the other each layer chilled water shower nozzles 70 in the multilayer chilled water shower nozzle 70 towards the shock chamber, so that a part of chilled water sprays on the inwall of shock chamber, and form water membrane at the inwall of shock chamber, thereby reduce crude synthesis gas and lime-ash to the infringement of shock chamber's inwall.Preferably, can be regulated with the variation of raw gas output by the flow of the chilled water of chilled water shower nozzle ejection.Certainly, a plurality of chilled water shower nozzle 70 also can be arranged on identical At The Height (namely being arranged to one deck).
Pulp water pond 30 is arranged in the housing 10 and is positioned at the below of shock chamber 20, and the second end of downtake 90 inserts below the liquid level in pulp water pond 30.Form the annular chamber 60 of sealing between housing 10 and the shock chamber 20, annular chamber 60 is connected with air outlet 11.Like this, raw gas and lime-ash enter in the pulp water pond 30 through downtake 90, again lower the temperature after the dedusting through the water-bath in pulp water pond 30, enter in the annular chamber 60, are discharged by air outlet 11 at last.Because raw gas has passed through water bath processing, therefore, so that greatly reduced by the dustiness in the raw gas of the final output of vapourizing furnace, most of thin ash is stayed in the pulp water pond.Further, because dustiness reduces, therefore, alleviate the burden of subsequent disposal system, be conducive to the device long-period stable operation.In addition, the vapourizing furnace in the utility model both can be adapted to dry coal powder gasification, can be used for again coal water slurry gasification.
Preferably, vapourizing furnace also comprises de-bubble bar 50, and de-bubble bar 50 is arranged on the inside of annular chamber 60.Especially, a plurality of de-bubble bars 50 are divided into multilayer and are arranged in the annular chamber 60, and de-bubble bar 50 has zigzag structure or spike structure (especially, the spike structure is arranged on the surface of steel bar), arranged crosswise between the adjacent two layers de-bubble bar 50.Can remove the bubble that raw gas produces when rising after the water-bath by de-bubble bar 50.
The shock chamber of the vapourizing furnace in the utility model comprises the larger cavity of superposed volume and is positioned at the pars infundibularis of middle part or bottom, therefore, increased the space of shock chamber's internal upper part circulation, avoided the problem of lime-ash slagging scorification and obstruction, had that vapourizing furnace outlet raw gas dustiness is low, a long service life, the caloic transfer efficiency is fast, simple in structure, cost is low characteristics.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.

Claims (9)

1. a vapourizing furnace is characterized in that, comprising:
Housing (10) is provided with air outlet (11) on the described housing (10);
Combustion chamber (80), described combustion chamber (80) are arranged in the described housing (10);
Shock chamber (20), described shock chamber (20) are arranged in the described housing (10) and are positioned at the below of described combustion chamber (80); Described shock chamber (20) comprises cavity (21) and pars infundibularis (22); The first end of described cavity (21) is connected with the outlet of described combustion chamber (80), and the second end of described cavity (21) is connected with the entrance of described pars infundibularis (22); Downtake (90), the outlet of described pars infundibularis (22) is connected with the first end of described downtake (90);
Chilled water shower nozzle (70), described chilled water shower nozzle (70) is arranged on the inwall of described cavity (21);
Pulp water pond (30), described pulp water pond (30) are arranged in the described housing (10) and are positioned at the below of described shock chamber (20), and the second end of described downtake (90) inserts below the liquid level in described pulp water pond (30);
Form the annular chamber (60) of sealing between described housing (10) and described shock chamber (20), described annular chamber (60) is connected with described air outlet (11).
2. vapourizing furnace according to claim 1 is characterized in that, the number of described chilled water shower nozzle (70) is a plurality of.
3. vapourizing furnace according to claim 2 is characterized in that, described a plurality of chilled water shower nozzles (70) vertically are divided on the inwall that multilayer is arranged on described cavity (21).
4. vapourizing furnace according to claim 3 is characterized in that, every layer of described chilled water shower nozzle (70) circumferentially is evenly arranged along described cavity (21), and described chilled water shower nozzle (70) arranged crosswise of adjacent two layers.
5. vapourizing furnace according to claim 3, it is characterized in that, the nozzle of the described chilled water shower nozzle of at least one deck in the described chilled water shower nozzle of multilayer (70) (70) is towards the direction setting of the inwall of described cavity (21), and the nozzle of the described chilled water shower nozzle of all the other each layers in the described chilled water shower nozzle of multilayer (70) (70) arranges towards the inside of described shock chamber (20).
6. vapourizing furnace according to claim 2 is characterized in that, described a plurality of chilled water shower nozzles (70) are arranged on identical At The Height.
7. each described vapourizing furnace according to claim 1-6, it is characterized in that, described pars infundibularis (22) comprises the liner of being made by silicon carbide, and the upper end of described downtake (90) is coated with carbide layers, and the length of described carbide layers is 10~100cm.
8. each described vapourizing furnace is characterized in that according to claim 1-6, and described vapourizing furnace also comprises de-bubble bar (50), and described de-bubble bar (50) is arranged on the inside of described annular chamber (60).
9. vapourizing furnace according to claim 8, it is characterized in that, the number of described de-bubble bar (50) is a plurality of, described a plurality of de-bubble bars (50) are divided into multilayer and are arranged in the described annular chamber (60), described de-bubble bar (50) has zigzag structure or spike structure, arranged crosswise between the described de-bubble bar of adjacent two layers (50).
CN 201220134018 2012-03-31 2012-03-31 Gasification furnace Expired - Lifetime CN202688282U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220134018 CN202688282U (en) 2012-03-31 2012-03-31 Gasification furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220134018 CN202688282U (en) 2012-03-31 2012-03-31 Gasification furnace

Publications (1)

Publication Number Publication Date
CN202688282U true CN202688282U (en) 2013-01-23

Family

ID=47543929

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220134018 Expired - Lifetime CN202688282U (en) 2012-03-31 2012-03-31 Gasification furnace

Country Status (1)

Country Link
CN (1) CN202688282U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103146433A (en) * 2013-03-05 2013-06-12 上海锅炉厂有限公司 Gasifier of entrained-flow bed with single nozzle
CN105255522A (en) * 2015-10-15 2016-01-20 上海锅炉厂有限公司 Chilling transformation and purification device for high-temperature gasification product and technological method adopting chilling transformation and purification device
CN111690437A (en) * 2020-05-29 2020-09-22 中国科学院广州能源研究所 Agriculture and forestry biomass gasification device suitable for easy slagging

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103146433A (en) * 2013-03-05 2013-06-12 上海锅炉厂有限公司 Gasifier of entrained-flow bed with single nozzle
CN103146433B (en) * 2013-03-05 2014-09-03 上海锅炉厂有限公司 Gasifier of entrained-flow bed with single nozzle
CN105255522A (en) * 2015-10-15 2016-01-20 上海锅炉厂有限公司 Chilling transformation and purification device for high-temperature gasification product and technological method adopting chilling transformation and purification device
CN105255522B (en) * 2015-10-15 2018-03-20 上海锅炉厂有限公司 High-temperature gasification product Quench converts purifier and its process
CN111690437A (en) * 2020-05-29 2020-09-22 中国科学院广州能源研究所 Agriculture and forestry biomass gasification device suitable for easy slagging
CN111690437B (en) * 2020-05-29 2021-05-28 中国科学院广州能源研究所 Agriculture and forestry biomass gasification device suitable for easy slagging

Similar Documents

Publication Publication Date Title
CN204434565U (en) With the vapourizing furnace of radiation waste pot
CN101508915B (en) Gasifying device for liquid fuel or solid fuel aqueous slurry
CN102676229B (en) Combined rotational flow bed gasification furnace
WO2019196497A1 (en) Synthesis-gas sensible heat recovery apparatus and recovery method, and gasifier
CN202688282U (en) Gasification furnace
CN102213409A (en) Double-barrel water cooled wall type radiation waste boiler with adjusting function and industrial application thereof
CN102796570B (en) Novel composite type high-temperature raw gas cooling and washing equipment
CN105586093B (en) The gasification reactor and its gasification process of a kind of band part waste-heat recovery device
CN103627440B (en) Rotational-flow dry coal powder gasifier
CN103820158B (en) Cyclonic powder coal gasification furnace
CN106433790B (en) Gasification equipment with heat recovery device and capable of preventing slag blockage
CN104449868A (en) Entrained flow gasifier for swirling melt cinder solidification
CN102634378B (en) Gasification furnace and chilling chamber thereof
CN204151305U (en) Half Waste heat boiler-type gasifier
CN202530054U (en) Novel composite type high-temperature raw-gas cooling washing device
CN104357094A (en) High-efficiency chilling device
CN203559031U (en) Waste pot device of entrained-flow bed gasification furnace
CN204251570U (en) A kind of efficient chilling device
CN202849350U (en) Entrained-flow bed gasifier chilling device with function of preventing slag blockage
CN103965966B (en) A kind of dry powder pressurizing gasifying apparatus with treatment of Organic Wastewater
CN103484167B (en) Cooling and washing equipment for high-temperature coal gas
CN202754968U (en) Gasifier of fluidized bed of double-layer cooling room
CN103351890B (en) Washing cooling tube with flaring structure
CN207294697U (en) The Y type airflow bed gasification furnaces of dry granulation deslagging
CN202766488U (en) Gasification furnace applicable to biomass gasification

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20130123