CN102786988B - Combustible carbon material gasifying device employing three-section composite dry and wet method - Google Patents
Combustible carbon material gasifying device employing three-section composite dry and wet method Download PDFInfo
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- CN102786988B CN102786988B CN 201210195666 CN201210195666A CN102786988B CN 102786988 B CN102786988 B CN 102786988B CN 201210195666 CN201210195666 CN 201210195666 CN 201210195666 A CN201210195666 A CN 201210195666A CN 102786988 B CN102786988 B CN 102786988B
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Abstract
The invention provides a combustible carbon material gasifying device employing a three-section composite dry and wet method. The device is characterized by comprising a reaction section, a quench section and a separating section connected from top to bottom in sequence. The reaction section comprises a casing and a vertical type protection wall arranged in the casing; an upper end and a lower end of the vertical type protection wall are respectively connected to an upper header and a lower header; and an upper slag outlet is arranged below the lower header. An inner wall of the quench section is provided with a refractory material; a chilling device capable of spraying cold air or water is arranged inside the quench section; a solid slag opening is arranged at the lower end of the quench section and connected with a baffle plate in the separation section. The separation section bottom is provided with a water bath; a solid slag outlet is arranged below the separation section; and the upper side part of the separation section is provided with a material outlet. According to the invention, the device is simultaneously applicable to a dry dedusting and wet dedusting by the chilling device capable of spraying cold air or water can be sprayed into the cold gas or water chiller; the cylindrical protection wall with fins realizes small fluid resistance and low oxygen consumption, has compact structure, and is easy for installation. The device has characteristics of low cost, high efficiency, safety and reliability.
Description
Technical field
The present invention relates to a kind of three sections flammable carbon species gasification installations of compound dried wet method, be used for the clean gasifying of the flammable carbon speciess such as coal, Jiao, belong to flammable carbon species gasification technology field.
Background technology
The gasification technology of the flammable carbon speciess such as existing coal, Jiao can be divided into three kinds by the type of reaction bed: fixed bed, fluidized-bed and air flow bed.
The raw material that fixed bed uses is anthracite block coal, moulded coal or coke, and raw material sources are limited and price is high; On the other hand, the atmospheric gasification bed temperature of fixed bed is low, efficient is low, seriously polluted to environment.Country expressly provides that fixed bed belongs to the backward gasification technology that is eliminated.
What fluidized-bed was used is broken coal (generally particle diameter is not more than 6mm), melts poly-or grey molten gathering of pressurization such as the normal pressure ash, and the gasification of fluidized-bed is forced down, about 1000 ℃ of temperature of reaction, the available gas composition (CO+H of generation
2) content is low, methane content high (generally 6%～8%), discomfort is fit to do industrial chemicals.Fluidized-bed gasification technology not only energy consumption is high, and the sewage that produces contains organic material, is difficult to process, and also belongs to the gasification technology that backwardness will be eliminated.
Air flow bed has two kinds of water coal slurry pressure gasification technology and powdered coal pressuring gasified technology.
The coal water slurry gasification technology is the gasification technology that grows up the eighties, and its technical advance is far above fixed bed and fluidized-bed.Uses lining of fire brick in the stove, gasification temperature is less than 1400 ℃, and it is very high to the requirement of raw material, as requires the ash fusion point of coal to be not more than that 1250 ℃, ash content are not more than 14%, volatile matter is not less than 25%, so the applicable surface of its raw material is narrower.In addition, owing to contain 40% the water of having an appointment in the coal water slurry, the oxygen consumption height therefore gasifies.In addition, because gasification temperature is relatively low, the sewage quantity of generation is more, and carbon content is high and more difficult in the lime-ash.Therefore, the application of this technology and development all are restricted.
The powdered coal pressuring gasified technology that grows up the nineties has demonstrated powerful vitality.Its raw material applicable surface is broad, gasification temperature is high; Oxygen consumption is low, compares with the coal water slurry gasification technology, and oxygen-consumption reduces by 25%～30%; And the available gas composition is high, general (CO+H
2) content accounts for 90%.The powdered coal pressuring gasified technology that Present Domestic adopts is divided into two kinds of dry method dust (being applicable to the internal combustion turbine of power generation type) and wet dedustings (being applicable to the chemical industry type raw material), their gasification installation complex structure and unreasonable, operating troubles is many, involves great expense.The domestic dry method dust gasification technology that except the shell technology, there is no oneself.
Summary of the invention
The technical problem to be solved in the present invention provide a kind of simple in structure, resistance is little, heat is few, oxygen consumption is low and be applicable to simultaneously the flammable carbon species gasification installation of dry method dust and wet dedusting.
In order to solve the problems of the technologies described above, technical scheme of the present invention provides a kind of three sections flammable carbon species gasification installations of compound dried wet method, it is characterized in that: connected to form successively from top to bottom by conversion zone, Quench section and segregation section; Conversion zone comprises shell and is located at the riser type protective bulkhead of enclosure, and riser type protective bulkhead upper/lower terminal connects respectively upper header and lower collecting box, and the top slag notch is located at the lower collecting box below; Quench section inwall is provided with refractory matter, and the chiller that can spray into cold air or water is located at the Quench intersegmental part, Gu cinder notch is located at Quench section lower end and is connected with the traverse baffle of segregation section inside; The segregation section bottom is provided with water bath, and the segregation section below is provided with solid slag outlet, and top, segregation section side is provided with material outlet.
Preferably, described riser type protective bulkhead be into cylindrical ring around finned tube, be provided with temperature measuring equipment between finned tube.
Preferably, described top slag notch and solid cinder notch are tapered.
A kind of three sections flammable carbon species gasification installations of compound dried wet method provided by the invention are contained conversion zone, Quench section and segregation section.Flammable carbon species generates (CO+H by carry out the incomplete combustion reaction in conversion zone
2) content is at the gas more than 90%, can be used as the raw material of production Coal Chemical Industry product, also can be used for gas turbine power generation.The Quench section realizes being applicable to simultaneously the function of dry method dust and wet dedusting by the chiller that can spray into cold air or water is installed.If the gas that produces in the conversion zone is used for Chemical Manufacture, chiller adopts the water Quench; If the gas that produces in the conversion zone is used for generating, chiller adopts the dry gas Quench.The traverse baffle of segregation section can carry out gas solid separation with effect ground, and gas returns through traverse baffle, upwards goes out gasification installation through material outlet; Reacted solid slag is fallen into water bath, flows out through the lime-ash outlet again; Water bath can be protected not overtemperature of bottom material, guarantees the safety of equipment.
Device provided by the invention is by spraying into the chiller of cold air or water; can be applicable to simultaneously dry method dust and wet dedusting; cylindrical finned riser type protective bulkhead makes that fluid resistance is little, oxygen consumption is low; and compact construction, be easy to install, have the advantages that cost is low, efficient is high, safe and reliable.
Description of drawings
Fig. 1 is a kind of three sections flammable carbon species gasification installation of compound dried wet method synoptic diagram provided by the invention;
Fig. 2 is riser type protective bulkhead front view in the present embodiment;
Fig. 3 is riser type protective bulkhead vertical view in the present embodiment;
Description of reference numerals
The 1-shell; The 2-conversion zone; 3-riser type protective bulkhead; The 4-lower collecting box; The 5-upper header; 6-top slag notch; 7-Quench section; The 8-chiller; The 9-refractory matter; 10-segregation section; The 11-water bath; The 12-traverse baffle; The solid cinder notch of 13-; The 14-material outlet; The solid slag outlet of 15-; The extraneous rising pipe of 16-; The extraneous water inlet pipe of 17-.
Embodiment
For the present invention is become apparent, hereby with a preferred embodiment, and cooperate accompanying drawing to be described in detail below.
Fig. 1 is a kind of three sections flammable carbon species gasification installation of compound dried wet method synoptic diagram provided by the invention, and described a kind of three sections flammable carbon species gasification installations of compound dried wet method are connected to form from top to bottom successively by conversion zone 2, Quench section 7 and segregation section 10.
Reacted gas and slag enter Quench section 7 through the tapered top of lower collecting box 4 belows slag notch 6, Quench section 7 inwalls are lined with refractory matter 9, be contained in Quench section 7 inner chillers 8 and can spray into cold air or water, so that the rapid Quench of the high-temperature gas of conversion zone, the liquid slag of the melting of bringing into becomes solid slag or dust.Heavy slag falls into the water bath 11 of segregation section 10 bottoms through tapered solid cinder notch 13, and during the wet method Quench, the lime-ash overwhelming majority enters water bath, discharges from the solid slag outlet 15 of segregation section 10 bottoms again; During the dry gas Quench, slag falls into tank, and thin ash is taken out of through the material outlet 14 on top, segregation section 10 side by gas, enters waste heat boiler, produces high (or in) and presses superheated vapour, then enters accurate filter, makes that dust-laden drops to below the 0.1ppm in the gas.
Apparatus structure provided by the invention is simple, easy to maintenance, safety, reliable, and efficiency of carbon conversion is high, overall thermal efficiency is high, the synthetic gas that dry method or wet method Quench are produced can be respectively applied to generating or chemical industry, invests lowly, and running cost is low, good in economic efficiency, and be a kind of environmentally friendly gasification installation.
Claims (1)
1. the one kind three sections flammable carbon species gasification installations of compound dried wet method is characterized in that: connected to form successively from top to bottom by conversion zone (2), Quench section (7) and segregation section (10); Conversion zone (2) comprises shell (1) and is located at the inner riser type protective bulkhead (3) of shell (1), described riser type protective bulkhead (3) is the protective bulkhead that becomes cylindrical ring winding one-tenth along shell (1) inwall, by finned tube (3-1), be provided with temperature measuring equipment (3-2) between finned tube (3-1), riser type protective bulkhead (3) upper/lower terminal connects respectively upper header (5) and lower collecting box (4), and top slag notch (6) is located at lower collecting box (4) below; Quench section (7) inwall is provided with refractory matter (9), the chiller (8) that can spray into cold air or water is located at Quench section (7) inside, Gu cinder notch (13) is located at Quench section (7) lower end and is connected with the traverse baffle (12) of segregation section (10) inside; Segregation section (10) bottom is provided with water bath (11), segregation section (10) below is provided with solid slag outlet (15), segregation section (10) top, side is provided with material outlet (14), and described top slag notch (6) and solid cinder notch (13) are tapered; If the gas that produces in the conversion zone is used for Chemical Manufacture, chiller adopts the water Quench, if the gas that produces in the conversion zone is used for generating, chiller adopts the dry gas Quench; During the wet method Quench, the lime-ash overwhelming majority enters water bath, discharges from the solid slag outlet (15) of segregation section (10) bottom again; During the dry gas Quench, slag falls into tank, and thin ash is taken out of through the material outlet (14) on segregation section (10) top, side by gas, enter waste heat boiler, produce high pressure or middle pressure superheated vapour, then enter accurate filter, make that dust-laden drops to below the 0.1ppm in the gas.
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| CN103146434B (en) * | 2013-03-05 | 2014-11-12 | 上海锅炉厂有限公司 | Multi-nozzle entrained-flow bed gasification furnace |
| 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 |
| US9822966B2 (en) * | 2015-08-05 | 2017-11-21 | General Electric Company | Quench system, system having quench system, and method of superheating steam |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101003754A (en) * | 2006-01-19 | 2007-07-25 | 神华集团有限责任公司 | Entrained flow gasification stove, and gasification method |
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| JP5583784B2 (en) * | 2009-12-25 | 2014-09-03 | チャンチョン エンジニアリング カンパニー リミティド | High performance and clean pressurized gasifier for dry powder of carbonaceous material and method thereof |
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| CN101003754A (en) * | 2006-01-19 | 2007-07-25 | 神华集团有限责任公司 | Entrained flow gasification stove, and gasification method |
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Owner name: CHANGZHENG ENGINEERING CO., LTD. Free format text: FORMER OWNER: LU ZHENGTAO Effective date: 20141022 Free format text: FORMER OWNER: YAN XUEQING LU ZHIBO SHANGHAI GSO INTERNAT TRADING CO., LTD. Effective date: 20141022 |
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Effective date of registration: 20141022 Address after: 101111, Beijing economic and Technological Development Zone Road East 141, No. four, Hai Road Patentee after: Aerospace Changzheng Engineering Co.,Ltd. Address before: 201104 Shanghai city Minhang District Road 99 Lane 230 No. 201 Wanding Patentee before: Lu Zhengtao Patentee before: Yan Xueqing Patentee before: Lu Zhibo Patentee before: Global Source One (Shanghai) LLC |