CN103710047A - Oil-rich gas coal ordered-pyrolysis gasifier - Google Patents
Oil-rich gas coal ordered-pyrolysis gasifier Download PDFInfo
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- CN103710047A CN103710047A CN201310536372.1A CN201310536372A CN103710047A CN 103710047 A CN103710047 A CN 103710047A CN 201310536372 A CN201310536372 A CN 201310536372A CN 103710047 A CN103710047 A CN 103710047A
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Abstract
An oil-rich gas coal ordered-pyrolysis gasifier is disclosed, the upper part of a furnace body is provided with a coal adding hole and a gas outlet, the gas outlet is externally connected with a water vapor separation device inlet, the lower part of the furnace body is provided with an oxygen inlet, a steam inlet and a slag outlet hole, an in-furnace destructive distillation section of the heightened furnace body is lengthened, the in-furnace destructive distillation section is provided with a stirrer, and the stirrer uses five layers of blades. By use of the lengthened destructive distillation section, the passing time of a dry oil-rich raw material coal through the destructive distillation section is prolonged, and in-furnace low-temperature, moderate-temperature and high-temperature tri-stage ordered-pyrolysis of oil-rich gas coal can be realized by temperature gradient from top to bottom. Due to the stirrer using the five layers of blades, advance coking scarring of the agglutinating oil-rich gas coal in a fixed bed can be avoided, bias flow and channeling flow in the rising process of a furnace gas can be overcome, the bias flow and the channeling flow are caused by bonding of the coal in the destructive distillation section, and hydrocarbons contained in the oil-rich gas coal can be fully pyrolyzed out, so that the oil-rich gas coal ordered-pyrolysis gasifier has the advantages of high oil product yield good economic efficiency, and can be widely used as pyrolysis gasifier equipment for performing first destructive distillation pyrolysis oil extraction of the oil-rich gas coal and then further performing gasification on semicoke after destructive distillation for production of synthesis gas.
Description
Technical field:
The present invention relates to a kind of the first carbonization of rich oil bottle coal be carried to oil, then the pyrolytic gasification stove of the production synthetic gas that further semicoke after destructive distillation gasify.
Background technology
At present, to feed coal have simultaneously destructive distillation carry oil and produce synthetic gas comparison in equipment advanced person be widely used Lurgi gasifier, third generation lurgi gasifier is to improve in the s-generation type of furnace, model is Mark-III, internal diameter is Φ 3800mm, body of heater height is 12500mm, and destructive distillation layer height scope is at 500-800mm, and this installs feed coal in process of production and in stove, passes through successively drying layer, destructive distillation layer, reaction zone of oxidation (comprising methane layer, reduction reaction layer, oxidizing reaction layer), ash bed.At destructive distillation layer, dry feed coal, between 300 ℃ and 700 ℃, carries out thermolysis (pyrolysis) by purified gas vapour mixture, generate pyrolysis water and various destructive distillation product, in pyrolytic process, the curve that tar generates is approximately since 320 ℃, in the time of approximately 430 ℃, reach maximum.Pyrolytic process is the side chain around of basic structural unit of coal and functional group etc., to the continuous cracking of thermally labile component, forms low molecular compound and volatilizees away.Because lurgi gasifier design stresses to produce raw gas, retort section design shorter, feed coal is short by the destructive distillation layer time, so part rich oil composition do not evaporate and just entered reaction oxidation zone, makes oil product yield low, and comprehensive benefit is little.Address this problem and become urgent need.
The content of invention:
In order to overcome the deficiencies in the prior art, the object of the invention is to design a kind of that rich oil composition in coal is as much as possible with oil product isolated in form out, can improve the orderly pyrolytic gasification stove of rich oil bottle coal of the oil product yield of rich oil coal.The orderly pyrolytic gasification stove of rich oil bottle coal is to have stoke hole, air outlet in upper of furnace body, the external moisture separation device import in air outlet, lower portion of furnace body has oxygen inlet, steam inlet, scum hole, and in its stove of the body of heater of increasing, retort section lengthens, and in stove, retort section is provided with agitator.Said agitator adopts five layers of blade.The present invention is owing to having lengthened retort section, therefore makes dry rich oil feed coal by the time lengthening of retort section, top-down thermograde realized rich oil bottle coal in stove in low temperature, the orderly pyrolysis of middle gentle high temperature three phases.Because agitator adopts five layers of blade, avoiding the interior close-burning rich oil bottle coal of fixed bed to shift to an earlier date coking scabs, overcome coal and caused bias current and the channel in furnace gas uphill process in retort section bonding, the pyrolysis of hydrocarbons fully rich oil bottle coal being contained itself out, therefore has advantages of that oil product yield is high, good in economic efficiency.
Accompanying drawing explanation:
Fig. 1 is front view of the present invention.
Embodiment:
A most preferred embodiment of the present invention, as figure, the orderly pyrolytic gasification stove of rich oil bottle coal is to have stoke hole 1, air outlet 3 in upper of furnace body, the external moisture separation device import in air outlet, lower portion of furnace body has oxygen inlet, steam inlet, scum hole 2, in its stove of the body of heater of increasing, retort section lengthens, and in stove, retort section is provided with agitator.Vapourizing furnace height overall is increased to 19000mm, and wherein direct tube section height is increased to 14800mm, and vapourizing furnace increases the rear retort section that is mainly reflected in and significantly lengthens, and retort section altitude range is in 2000mm.With load variations dry distillation area altitude range, between 2000-3000mm, change.The height in the top-down thermograde of retort section interval increases, and rich oil bottle coal extended in the dry distillation area residence time, realized rich oil bottle coal in stove in low temperature, the orderly pyrolysis of middle gentle high temperature three phases, the abundant pyrolysis that is conducive to rich oil composition is separated out.The blade 4 of agitator 5 is increased to 5 layers totally 10, definite solidification value again based on coal of whip topping blade position, and top blade can not be too near to the upper surface of coal bed layer, prevents from disturbing the operation of coal sparger.Every layer of blade pitch is at 300-400mm, and 5 layers of blade stir and make the horizontal temperature of retort section relatively even, have reduced the increase because of the retort section top/bottom part axial temperature difference after increasing.Under the thermograde evenly increasing from top to bottom, be beneficial to fully leniently pyrolysis of rich oil composition in feed coal and separate out.
Claims (2)
1. the orderly pyrolytic gasification stove of rich oil bottle coal is to have stoke hole, air outlet in upper of furnace body, the external moisture separation device import in air outlet, lower portion of furnace body has oxygen inlet, steam inlet, scum hole, and in its stove of the body of heater of increasing, retort section lengthens, and in stove, retort section is provided with agitator.
2. pyrolytic gasification stove as claimed in claim 1, is characterized in that: said agitator adopts five layers of blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310536372.1A CN103710047A (en) | 2013-11-04 | 2013-11-04 | Oil-rich gas coal ordered-pyrolysis gasifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310536372.1A CN103710047A (en) | 2013-11-04 | 2013-11-04 | Oil-rich gas coal ordered-pyrolysis gasifier |
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| CN103710047A true CN103710047A (en) | 2014-04-09 |
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| CN201310536372.1A Pending CN103710047A (en) | 2013-11-04 | 2013-11-04 | Oil-rich gas coal ordered-pyrolysis gasifier |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004189837A (en) * | 2002-12-10 | 2004-07-08 | Tokyo Yogyo Co Ltd | Multi-stage carbonizing oven |
| CN101280224A (en) * | 2008-05-13 | 2008-10-08 | 邹平县华星热能环保设备有限公司 | Normal pressure non-phenol method for fixed-bed gas producer |
| CN102504881A (en) * | 2011-08-23 | 2012-06-20 | 余式正 | Novel garbage carbonization-gasification furnace for garbage disposal |
| CN202346979U (en) * | 2011-09-27 | 2012-07-25 | 武汉联合创业可再生能源有限公司 | Spiral mixing transportation device, biomass carbonization pyrolysis equipment and biomass carbonization pyrolysis system |
| CN102796568A (en) * | 2012-09-06 | 2012-11-28 | 刘宗礼 | Device and technology for producing blau-gas and carbon monoxide |
| CN203625324U (en) * | 2013-11-04 | 2014-06-04 | 双鸭山龙煤天泰煤化工有限公司 | Gasification furnace for orderly pyrolysis of gas coal rich in oil |
-
2013
- 2013-11-04 CN CN201310536372.1A patent/CN103710047A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004189837A (en) * | 2002-12-10 | 2004-07-08 | Tokyo Yogyo Co Ltd | Multi-stage carbonizing oven |
| CN101280224A (en) * | 2008-05-13 | 2008-10-08 | 邹平县华星热能环保设备有限公司 | Normal pressure non-phenol method for fixed-bed gas producer |
| CN102504881A (en) * | 2011-08-23 | 2012-06-20 | 余式正 | Novel garbage carbonization-gasification furnace for garbage disposal |
| CN202346979U (en) * | 2011-09-27 | 2012-07-25 | 武汉联合创业可再生能源有限公司 | Spiral mixing transportation device, biomass carbonization pyrolysis equipment and biomass carbonization pyrolysis system |
| CN102796568A (en) * | 2012-09-06 | 2012-11-28 | 刘宗礼 | Device and technology for producing blau-gas and carbon monoxide |
| CN203625324U (en) * | 2013-11-04 | 2014-06-04 | 双鸭山龙煤天泰煤化工有限公司 | Gasification furnace for orderly pyrolysis of gas coal rich in oil |
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Application publication date: 20140409 |