CN205241601U - System for coal rapid pyrolysis - Google Patents
System for coal rapid pyrolysis Download PDFInfo
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- CN205241601U CN205241601U CN201520755691.6U CN201520755691U CN205241601U CN 205241601 U CN205241601 U CN 205241601U CN 201520755691 U CN201520755691 U CN 201520755691U CN 205241601 U CN205241601 U CN 205241601U
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Abstract
The utility model discloses a system for coal rapid pyrolysis, this system includes: fast pyrolysis apparatus , it includes: inject reaction space in the reactor noumenon, reactor noumenon, reaction space top -down forms dispersing section, pyrolysis zone and ejection of compact district, dispersing section includes: the distributing device, the coal entry, the coal entry is located the top of distributing device, cloth gas entry, cloth gas entry is linked together with the distributing device, pyrolysis zone includes: multilayer regenerative radiant tube, it follows reactor noumenon direction of height interval distribution in pyrolysis zone to every layer of regenerative radiant tube includes a plurality of regenerative radiant tube along horizontal direction interval distribution, ejection of compact district includes: semi -coke outlet, the export of a plurality of pyrolysis gas, the export of a plurality of pyrolysis gas set up respectively at dispersing section and/or pyrolysis zone, cold sediment machine, cold sediment machine links to each other with semi -coke outlet, cooling device, cooling device links to each other with the export of pyrolysis gas. This system can show the productivity that improves tar to rapid pyrolysis reaction process flow has greatly been simplified.
Description
Technical field
The utility model belongs to chemical field, and particularly, the utility model relates to a kind of coal Rapid Thermal analytical system.
Background technology
Rapid pyrolysis method is specially for warm solution upgrading technology in a kind of advanced person of low-order coal in powdery, requires itMaterial rate of heat addition under uniform temperature field is high, reaction mechanism, can make middle low-order coal macromolecule occur rapidlyScission of link reacts, and has suppressed secondary pyrolytic reaction and the cross-linking reaction of thermal decomposition product, the combustion gas in reduction in low-order coal pyrolytic processWith semicoke product, improve tar yield, therefore this technology is more suitable in China's actual conditions, and the economy that in improving, low-order coal is utilizedAnd social effect. Available technology adopting gas or solid thermal carriers are realized temperature field and heating rate requirement. Domestic at presentThe middle low-order coal fast pyrolysis reactor of outer exploitation mainly comprises the work such as fluid bed, down-flow fluidized bed using ECT of taking gas or solid thermal carriersSkill, but because the heating, separation, Temperature Field Control, the oil gas that relate to heat carrier purify the systems such as recovery, make technological process veryComplexity, causes in the market that the middle low-order coal fast pyrogenation system failure rate existing is high, the thermal efficiency is low, cannot transport for a long timeOK, thus suppressed the development of this technology.
Therefore, existing coal fast pyrolysis technology remains to be further improved.
Utility model content
The utility model is intended to solve at least to a certain extent one of technical problem in correlation technique. For this reason, this realityBe to propose a kind of coal Rapid Thermal analytical system by a novel object, this system can significantly improve the productive rate of tar, andAnd greatly simplify fast pyrogenation reaction process flow process.
Aspect one of the present utility model, the utility model proposes a kind of coal Rapid Thermal analytical system. According to this realityWith novel embodiment, this system comprises:
Fast pyrolysis reactor,
Described fast pyrolysis reactor comprises:
Reactor body, limits reaction compartment in described reactor body, and described reaction compartment forms point from top to bottomLoose district, pyrolysis zone and discharge zone;
Multilayer heat accumulation type radiant tube, described multilayer heat accumulation type radiant tube is high along described reactor body in described pyrolysis zoneDegree direction is spaced apart, and every layer of described heat accumulation type radiant tube comprises the heat accumulating type radiation that multiple along continuous straight runs are spaced apartPipe;
Distributing device;
Coal entrance, described coal entrance is positioned at described dispersion area and is positioned at the top of described distributing device;
Cloth gas entrance, described cloth gas entrance is positioned at described dispersion area and is connected with described distributing device, to adoptCloth gas blows out the coal in described distributing device to enter dispersion area, falls into equably pyrolysis zone;
Multiple pyrolysis gas outlets, described multiple pyrolysis gas outlets are separately positioned on described dispersion area and/or described pyrolysis zone;And
Semicoke outlet, described semicoke outlet is arranged on described discharge zone;
Described fast pyrolysis reactor is suitable for adopting described heat accumulation type radiant tube to carry out fast pyrolysis processes to coal, so thatTo semicoke and pyrolysis gas;
Cold slag machine, described cold slag machine is connected with described semicoke outlet, and is suitable for semicoke to carry out cooling processing; And
Cooling device, described cooling device is connected with described pyrolysis gas outlet, and is suitable for described pyrolysis gas to carry out coolingProcess, to obtain tar and combustion gas.
In coal fast pyrogenation reaction system of the present utility model, heat accumulation type radiant tube is arranged in the mode of multilayer. AdjacentTwo heat accumulation type radiant tubes separate with certain spacing in the horizontal direction with on vertical direction.
Temperature field
According to an embodiment of the present utility model, multilayer heat accumulation type radiant tube is used for providing thermal source, makes in pyrolysis zoneForm one or more temperature fields, and the temperature in each temperature field is uniformly, thus, in pyrolysis zone formation temperature gradient.
For example, in an embodiment of the present utility model, described pyrolysis zone forms preheating section, fast pyrogenation from top to bottomSection and completely pyrolysis section. (, having formed 3 temperature fields)
The number in temperature field and thermograde can arrange as required.
The temperature in temperature field can regulate in several ways, for example, adjusts heat accumulation type radiant tube in the horizontal direction and/or erectsNogata number upwards; The number of plies of heat accumulation type radiant tube; Heat accumulation type radiant tube spacing (vertical direction and/or water each otherSquare to); The temperature of each heat accumulation type radiant tube itself; Etc..
In an embodiment of the present utility model, on heat accumulation type radiant tube, be provided with gas control valve, logical for adjustingEnter the flow of the combustion gas of heat accumulation type radiant tube, thereby can accurately control the temperature of heat accumulation type radiant tube.
Heat accumulation type radiant tube
Heat accumulation type radiant tube has respectively burner at the two ends of body, and the flame that at one end burner combustion produces is in sprayFormation temperature gradient while going out, that is, reduce gradually from the outside temperature of burner. Similarly, produce in other end burner combustionFlame in when ejection also formation temperature gradient. In the time that the burner at two ends hockets burning, two temperature ladders that formDegree stack, makes temperature complementation, causes the temperature of whole heat accumulation type radiant tube entirety even. For example, single described heat accumulating type spokeThe temperature difference of penetrating on pipe is not more than 30 DEG C.
Coal fast pyrogenation reaction system of the present utility model uses the arrangement of heat accumulation type radiant tube of the present utility model,Because the intrinsic attribute of heat accumulation type radiant tube itself (can be handed at the burner at heat accumulation type radiant tube two ends as mentioned above, fastFor burning, realize heat storage type combustion), allow to arrange one or more different temperature fields at reactor as required, realize temperatureSpend gradient and guarantee that each temperature field has uniform temperature.
In an embodiment of the present utility model, the temperature of each heat accumulation type radiant tube is identical or different, as long as guaranteeThe temperature in temperature field evenly.
In an embodiment of the present utility model, the spacing between adjacent heat accumulation type radiant tube can be identical orDifference, as long as the temperature of guaranteeing temperature field evenly. For example, the horizontal range between adjacent described heat accumulation type radiant tube outer wall andVertically distance is 100～500mm respectively independently, for example 200～300mm, for example 200mm, for example 300mm.
Form preheating section, fast pyrogenation section from top to bottom in described pyrolysis zone and completely in the embodiment of pyrolysis section, in advanceThe temperature of the each heat accumulation type radiant tube in hot arc is identical or different, preferably identical, as long as the temperature of guaranteeing preheating section evenly.
Form preheating section, fast pyrogenation section from top to bottom in described pyrolysis zone and completely in the embodiment of pyrolysis section, soonThe temperature of the each heat accumulation type radiant tube in speed pyrolysis section is identical or different, preferably identical, as long as guarantee the temperature of fast pyrogenation sectionEvenly.
Form from top to bottom in the embodiment of preheating section, fast pyrogenation section and complete pyrolysis section, complete in described pyrolysis zoneThe temperature of the each heat accumulation type radiant tube in full pyrolysis section is identical or different, preferably identical, as long as guarantee the temperature of complete pyrolysis sectionEvenly.
Although be not limited to theory, it is believed that local temperature is too high to be caused if coal can not thermally equivalent in pyrolysis zoneLocal coal generation Pintsch process in pyrolytic process, makes the polymer substance that partly can produce tar in thermal decomposition product directly generate combustionGas and semicoke, or local temperature is too low causes in pyrolytic process local pyrolysis of coal insufficient, cause volatile matter in coal notCan discharge, thereby reduce tar yield.
In the utility model, in the time that heat accumulation type radiant tube is arranged to form one or more temperature field, due to temperatureField temperature is separately roughly uniform, and therefore, coal is thermally equivalent in the time falling into each temperature field, and the degree reacting is phase substantiallyWith. Thus, along and avoid tar yield decline.
The quick derivation of pyrolysis gas
Utilize coal fast pyrogenation reaction system of the present utility model, can after pyrolysis of coal, realize leading fast of pyrolysis gasGo out. Particularly, in an embodiment of the present utility model, the reactor of coal fast pyrogenation reaction system is in pyrolysis zoneThe roof of sidewall and/or dispersion area is provided with one or more pyrolysis gas outlets. In pyrolytic reaction process, produce pyrolysis gas,The pressure of this inside reactor is raise. The pyrolysis gas producing is led from pyrolysis gas outlet fast under the ordering about of the pressure raisingGo out.
In a preferred embodiment of the present utility model, be provided with in reactor outside taking out of being communicated with pyrolysis gas outletDevice of air, be conducive to derives pyrolysis gas fast from this reactor.
The pyrolysis gas producing in pyrolytic process is derived from reactor sidepiece, and is positioned at pyrolysis gas outlet place, reactor inner sidePyrolysis gas contact with the fallen material in top, entering thin dirt in the pyrolysis gas of reactor sidepiece at described material gravityUnder effect, be carried whereabouts, in the pyrolysis gas that makes to derive, dust content is low, thereby in the tar obtaining after cooling, dust content is low.
Pyrolysis gas outlet is at least 2, for example 2-100, and 3-80,5-70,10-50,20-40,30-40. MoreParticularly, pyrolysis gas outlet is 8,15,22 or 28. The utility model is not limited to this.
Pyrolysis gas cooling fast
The pyrolysis gas of deriving from pyrolysis gas outlet is cooled rapidly by cooling device, thus by non-condensable gas and tarSeparate.
Cloth
The utility model, by using distributing device, can make coal dispersed in pyrolysis zone, and then significantly carry in additionThe operation stability of high device.
Coal
By the cloth system arranging make that small-particle coal disperses, enter pyrolysis reactor uniformly, small-particle coal is allIn even temperature field, through heat exchange, each coal particle is heated evenly, avoided coal reunite cause heating rate inhomogeneous and reduceAnd then the problem that causes hydrocarbon yield to decline. For example coal particle diameter is less than 3mm.
Effect
Owing to adopting heat accumulation type radiant tube arrangement of the present utility model, coal can in reactor in pyrolytic processBe rapidly heated. Produced simultaneously pyrolysis gas can be derived reactor and be cooled rapidly fast. Reduce thus in heatContingent secondary response in solution process, derivation process and cooling procedure (this reaction can reduce tar yield), therefore, gainedTar yield be significantly increased.
More traditional use gas heat carrier or solid thermal carriers are compared as the pyrolytic reaction device of pyrolysis thermal source simultaneously,Rapid Thermal analytical system of the present utility model does not need to arrange preheating unit and carrier separative element, thereby can greatly simplify fastSpeed pyrolytic reaction technological process, and then significantly reduce the fault rate of device.
The utility model by adopt specific heat accumulation type radiant tube arrangement, can in reactor, form one orMultiple temperature fields also can guarantee that the temperature in each temperature field is even, and the temperature that simultaneously allows each temperature field of reactor is controlled. Thus, make the coal can thermally equivalent in reactor, realize flash baking and pyrolysis more fully, and then improved tarProductive rate, has improved the fast pyrogenation efficiency of coal.
In addition, can also there is following additional skill according to the coal Rapid Thermal analytical system of the utility model above-described embodimentArt feature:
In embodiment more of the present utility model, described coal Rapid Thermal analytical system further comprises: coal hopper, described inCoal hopper is suitable for storing coal; Dry riser, described oven dry riser is anti-with described fine coal hopper and described fast pyrogenation respectivelyAnswer device to be connected, and be suitable for, before coal is carried out to fast pyrogenation reaction, adopting hot flue gas that described coal is dried and is promoted; WithAnd first blower fan, described the first blower fan is connected with described oven dry riser with described exhanst gas outlet respectively, and is suitable for described heightTemperature flue gas is supplied to described oven dry riser and uses as described hot flue gas. Thus, can further improve the pyrolysis efficiency of coal.
In embodiment more of the present utility model, described cooling device is spray column, in described spray column, adopts coldBut liquid sprays described pyrolysis gas, thereby carries out described cooling processing. Thus, can significantly improve dividing of tar and combustion gasFrom efficiency.
In embodiment more of the present utility model, described coal Rapid Thermal analytical system further comprises: tar groove, described inTar groove is connected with described spray column, and is suitable for described tar to carry out sedimentation processing, to obtain upper strata tar and lower coke chargeOil; Oil pump, described oil pump is connected with described spray column with described tar groove respectively, and is suitable for described upper strata tar to be supplied to instituteStating spray column uses as described cooling fluid; Tar storage tank, described tar storage tank is connected with described tar groove, and is suitable for storing instituteState lower floor's tar; Water seal arrangement, described water seal arrangement is connected with described spray column; Combustion gas storage tank, described combustion gas storage tank with described inSpray column is connected, and is suitable for storing described combustion gas; The second blower fan, described the second blower fan respectively with described combustion gas storage tank and described in holdHot type radiant tube is connected, and is suitable for a part for described combustion gas to be supplied to described heat accumulation type radiant tube; And the 3rd blower fan, instituteState the 3rd blower fan and be connected with described cloth gas entrance with described combustion gas storage tank respectively, and be suitable for another part of described combustion gas to supplyBe given to described cloth gas entrance as cloth gas. Thus, can realize recycling of fuel, thereby significantly reduce costs.
In embodiment more of the present utility model, every layer of described heat accumulation type radiant tube comprises multiple parallel and evenly divideEach in the heat accumulation type radiant tube of cloth and each described heat accumulation type radiant tube and adjacent upper and lower two-layer heat accumulation type radiant tube is heldHot type radiant tube is parallel and be in staggered distribution along reactor body short transverse. Thus, material can be realized even at reactorEnter and ensure that residence time of material is identical, further improving the fast pyrogenation efficiency of coal.
In embodiment more of the present utility model, the height of described reactor body is 2～20m, described heat accumulating type spokeThe caliber of penetrating pipe is 100～500mm, and the horizontal range between adjacent described heat accumulation type radiant tube outer wall and vertically distance are independent respectivelyGround is 100～500mm. Thus, can realize residence time of material is 2-30s, and the fast pyrogenation of realizing coal stops required time.
In embodiment more of the present utility model, heat accumulation type radiant tube is regenerative gas radiant tube, by radiationThe heat that pipe body produces combustion gas carries out heat supply in the mode of radiation.
In embodiment more of the present utility model, on described heat accumulation type radiant tube, be provided with gas control valve, use is manyLayer heat accumulation type radiant tube provides pyrolytic process required thermal source, can adjust the flow of the combustion gas that passes into heat accumulation type radiant tube, fromAnd can accurately control the temperature of pyrolytic process.
In embodiment more of the present utility model, the number of plies of multilayer heat accumulation type radiant tube can be 6-30 layer. InventorFind, this kind of structural configuration can make uniform distribution of temperature field in pyrolysis zone, thereby can significantly improve the fast pyrogenation of coalEfficiency, and then the productive rate of raising tar.
In embodiment more of the present utility model, the temperature difference on single described heat accumulation type radiant tube is not more than 30 DEG C,Described pyrolysis zone forms preheating section, fast pyrogenation section and complete pyrolysis section, the heat accumulation type radiant tube of described preheating section from top to bottomTemperature is 550～900 DEG C, and the heat accumulation type radiant tube temperature of described fast pyrogenation section is 500～800 DEG C, described complete pyrolysis sectionHeat accumulation type radiant tube temperature be 500～800 DEG C. Thus, can realization response device regional temperature even, and regulate reactionDevice regional temperature, realizes flash baking and the pyrolysis completely of coal, further improves the fast pyrogenation efficiency of coal.
Additional aspect of the present utility model and advantage in the following description part provide, and part is by the description from belowIn become obviously, or recognize by practice of the present utility model.
Brief description of the drawings
Above-mentioned and/or additional aspect of the present utility model and advantage from conjunction with below accompanying drawing to the description of embodiment willBecome obviously and easily and understand, wherein:
Fig. 1 is according to the system architecture schematic diagram of the coal fast pyrogenation of an embodiment of the utility model;
Fig. 2 is according to the knot of the fast pyrolysis reactor in the coal Rapid Thermal analytical system of an embodiment of the utility modelStructure schematic diagram;
Fig. 3 is according to the system architecture schematic diagram of the coal fast pyrogenation of another embodiment of the utility model;
Fig. 4 is according to the system architecture schematic diagram of the coal fast pyrogenation of another embodiment of the utility model;
Fig. 5 is according to the system architecture schematic diagram of the coal fast pyrogenation of another embodiment of the utility model;
Fig. 6 is according to the system architecture schematic diagram of the coal fast pyrogenation of another embodiment of the utility model;
Fig. 7 is according to the method for the System Implementation coal fast pyrogenation of the coal fast pyrogenation of another embodiment of the utility modelSchematic flow sheet;
Fig. 8 is according to the method for the System Implementation coal fast pyrogenation of the coal fast pyrogenation of another embodiment of the utility modelSchematic flow sheet;
Fig. 9 is according to the method for the System Implementation coal fast pyrogenation of the coal fast pyrogenation of another embodiment of the utility modelSchematic flow sheet;
Figure 10 is according to the side of the System Implementation coal fast pyrogenation of the coal fast pyrogenation of another embodiment of the utility modelMethod schematic flow sheet.
Detailed description of the invention
Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, wherein ad initioExtremely whole same or similar label represents same or similar element or has the element of identical or similar functions. Below by ginsengThe embodiment that examines accompanying drawing description is exemplary, is intended to for explaining the utility model, and can not be interpreted as the utility modelRestriction.
In description of the present utility model, it will be appreciated that term " " center ", " longitudinally ", " laterally ", " length ", " wideDegree ", " thickness ", " on ", D score, 'fornt', 'back', " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ",Orientation or position relationship that " clockwise ", " counterclockwise ", " axially ", " radially ", " circumferentially " etc. indicate are based on shown in the drawingsOrientation or position relationship, be only the utility model and simplified characterization for convenience of description, instead of the dress of instruction or hint indicationPut or element must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as the utility modelRestriction.
In addition, term " first ", " second " be only for describing object, and can not be interpreted as instruction or hint relative importanceOr the implicit quantity that indicates indicated technical characterictic. Thus, the feature that is limited with " first ", " second " can express orImpliedly comprise at least one this feature. In description of the present utility model, the implication of " multiple " is at least two, for example twoIndividual, three etc., unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " GuFixed " etc. term should be interpreted broadly, for example, can be to be fixedly connected with, can be also to removably connect, or integral; Can beMechanical connection can be also electrical connection; Can be to be directly connected, also can indirectly be connected by intermediary, can be twoThe interaction relationship of the connection of element internal or two elements, unless separately there is clear and definite restriction. For the common skill of this areaArt personnel, can understand the concrete meaning of above-mentioned term in the utility model as the case may be.
In the utility model, unless otherwise clearly defined and limited, First Characteristic Second Characteristic " on " or D scoreCan be that the first and second features directly contact, or the first and second features be by intermediary mediate contact. And, the first spyLevy Second Characteristic " on ", " top " and " above " but First Characteristic directly over Second Characteristic or oblique upper, or onlyRepresent that First Characteristic level height is higher than Second Characteristic. First Characteristic Second Characteristic " under ", " below " and " below " canBe First Characteristic under Second Characteristic or tiltedly, or only represent that First Characteristic level height is less than Second Characteristic.
Aspect one of the present utility model, the utility model proposes a kind of coal Rapid Thermal analytical system. Below with reference toThe coal Rapid Thermal analytical system of Fig. 1-6 couple the utility model embodiment is described in detail. According to embodiment of the present utility model,This system comprises:
Fast pyrolysis reactor 100: according to embodiment of the present utility model, with reference to figure 2, fast pyrolysis reactor 100 wrapsDraw together reactor body 10, in reactor body 10, limit reaction compartment 11, according to specific embodiment of the utility model, reactionSpace 11 forms dispersion area 12, pyrolysis zone 13 and discharge zone 14 from top to bottom.
According to embodiment of the present utility model, in reaction compartment 11, there is multilayer heat accumulation type radiant tube 15 and distributing device 16.
According to embodiment of the present utility model, on reactor body 10, there is coal entrance 101, cloth gas entrance 102, multiplePyrolysis gas outlet 103 and semicoke outlet 104.
According to embodiment of the present utility model, coal entrance 101 is positioned at dispersion area 12 and is positioned at the top of distributing device 16, and suitableIn coal is supplied in reaction compartment 11 and after distributing device and is dispersed in pyrolysis zone. Concrete, coal entrance 101 can positionOn the sidewall of dispersion area 12.
According to embodiment of the present utility model, cloth gas entrance 102 is positioned at 12 inside, dispersion area and is connected with distributing device 16Logical, and be suitable in distributing device 16, supplying with cloth gas (nitrogen etc.), to the coal in distributing device 16 is blown out and enters dispersion area 12,Thereby coal is uniformly distributed in pyrolysis zone, and then further improves the fast pyrogenation efficiency of coal. Concrete, cloth gas entrance101 can be positioned on the sidewall of dispersion area 12.
According to embodiment of the present utility model, multilayer heat accumulation type radiant tube 15 in pyrolysis zone 13 along reactor body 10 heightDegree direction is spaced apart, and every layer of heat accumulation type radiant tube comprise the heat accumulation type radiant tube that multiple along continuous straight runs are spaced apart,According to specific embodiment of the utility model, every layer of heat accumulation type radiant tube comprises multiple parallel and equally distributed heat accumulating type spokesPenetrate pipe and each heat accumulation type radiant tube parallel also with each heat accumulation type radiant tube in adjacent upper and lower two-layer heat accumulation type radiant tubeAnd be in staggered distribution along reactor body short transverse. According to concrete example of the present utility model, the caliber of heat accumulation type radiant tube canThink 100～500mm. Thus, can significantly improve the fast pyrogenation efficiency of coal, and then improve the productive rate of tar.
According to specific embodiment of the utility model, the horizontal range between adjacent heat accumulation type radiant tube outer wall and vertically distanceBe respectively 100～500mm independently. Thus, can further improve the productive rate of tar. It should be explained that adjacent heat accumulating typeHorizontal range between radiant tube outer wall can be understood as the distance between heat accumulation type radiant tube outer wall on same layer, and adjacent heat accumulating typeVertical distance between radiant tube outer wall can be understood as the distance between the adjacent heat accumulation type radiant tube outer wall of adjacent upper and lower two interlayers.
According to specific embodiment of the utility model, the number of plies of multilayer heat accumulation type radiant tube can be 6-30 layer. InventorFind, this kind of structural configuration can make uniform distribution of temperature field in pyrolysis zone, thereby can significantly improve the fast pyrogenation of coalEfficiency, and then the productive rate of raising tar.
According to embodiment of the present utility model, heat accumulation type radiant tube can be regenerative gas radiant tube, by radiationThe heat that pipe body produces combustion gas carries out heat supply in the mode of radiation. According to specific embodiment of the utility model, holdOn hot type radiant tube, can be provided with gas control valve (not shown). Thus, can pass into by adjusting gas control valve adjustingThe flow of the combustion gas of heat accumulation type radiant tube waits the accurate temperature controlling of realizing pyrolytic process, thereby can significantly improve the quick of coalPyrolysis efficiency, and then the productive rate of raising tar.
Concrete, the flow etc. that can pass into the combustion gas of heat accumulation type radiant tube by adjustments is realized accurate to pyrolytic processTemperature control, and adopt rapid switching valve, the temperature field of single radiant tube is more or less the same in 30 DEG C, thereby ensures in reaction compartmentThe uniformity in temperature field.
According to embodiment of the present utility model, pyrolysis zone forms preheating section, fast pyrogenation section and pyrolysis completely from top to bottomSection, the heat accumulation type radiant tube temperature of preheating section is 550～900 DEG C, the heat accumulation type radiant tube temperature of fast pyrogenation section is 500～800 DEG C, the heat accumulation type radiant tube temperature of pyrolysis section is 500～800 DEG C completely. Thus, can further improve the pyrolysis effect of coalRate.
According to embodiment of the present utility model, distributing device 16 can be positioned at 12 inside, dispersion area, and is suitable for adopting nitrogen etc.Inert gas blows out the coal in distributing device 16 to enter dispersion area, falls into equably pyrolysis zone, thereby makes it evenly be scattered in heatSeparate in district. Thus, more traditional fast pyrolysis process is compared, and the utility model is by adopting distributing device can save rotation (stirring)Unit, and then significantly reduce the fault rate of device. It should be noted that, " distributing device " herein can be adopted in prior artAny device coal being dispelled with gas. Concrete, distributing device 16 can be positioned on the sidewall of dispersion area 12.
According to embodiment of the present utility model, multiple pyrolysis gas outlets 103 can be separately positioned on dispersion area 12 and/or heatSeparate district 13. According to specific embodiment of the utility model, multiple pyrolysis gas outlets 103 can be separately positioned on the top of dispersion area 12On the sidewall of end and/or pyrolysis zone 13. Inventor finds, by adopting top to give vent to anger and/or the give vent to anger mode of combination of sidewall, and canTo make semicoke in pyrolysis gas by sedimentation separation, thereby significantly reduce the dust content of pyrolysis gas. From the angle of technological design, fromThe mode that the sidewall of pyrolysis zone is given vent to anger is preferred.
According to embodiment of the present utility model, semicoke outlet 104 can be arranged on discharge zone 14, and is suitable for pyrolysis to generateSemicoke discharge discharge zone. Concrete, semicoke outlet 104 can be arranged on the bottom of discharge zone 14.
According to embodiment of the present utility model, the internal face of dispersion area 12 can be spherical or taper. Thus, can makeThe material that must break up through distributing device is evenly trickled down in pyrolysis zone behind dispersion area, thereby further improves the pyrolysis efficiency of coal.
According to embodiment of the present utility model, discharge zone 14 can be back taper. Thus, can make pyrogenous origin halfThe burnt discharge zone of discharging smoothly.
According to embodiment of the present utility model, the height of reactor body 10 can be 2～20m. Thus, can realize rightThe complete pyrolysis of coal.
According to embodiment of the present utility model, fast pyrolysis reactor is suitable for adopting heat accumulation type radiant tube to carry out fast coalPyrolysis processing, to obtain semicoke and pyrolysis gas. According to an embodiment of the present utility model, the granularity of coal is not subject to special limitSystem, those skilled in the art can select according to actual needs, according to specific embodiment of the utility model, the granularity of coalCan be less than 3mm. Thus, can solve the unserviceable difficult problem of powdery coal in prior art. According to of the present utility model again oneIndividual embodiment, the fast pyrogenation time of coal is 2～30 seconds. Thus, can effectively reduce thermal decomposition product secondary pyrolytic reaction andCross-linking reaction degree, reduces the output of combustion gas and semicoke in pyrolytic process, thereby significantly improves the productive rate of tar.
Cold slag machine 200: according to embodiment of the present utility model, cold slag machine 200 and semicoke outlet 104 is connected, and be suitable for rightSemicoke carries out cooling processing, thereby can obtain cooling semicoke. Concrete, exporting from semicoke the semicoke temperature obtaining is 500～600 DEG C, the cooling semicoke temperature obtaining through cold slag machine is lower than 50 DEG C.
Cooling device 300: according to embodiment of the present utility model, cooling device 300 is connected with pyrolysis gas outlet 103, andBe suitable for pyrolysis gas to carry out cooling processing, thereby can obtain tar and combustion gas. According to specific embodiment of the utility model, asShown in Fig. 3, cooling device can be spray column, in spray column, adopts cooling fluid to spray pyrolysis gas, thereby carries out coldBut process. Concrete, spray column 300 inside can be provided with multilayer nozzle 31, and spray column 300 inside are positioned at every layer of nozzleBelow be provided with filler 32. Thus, can realize seizure and the purification of combustion gas, thereby significantly improve dividing of combustion gas and tarFrom efficiency. Concrete, spray column inside can be provided with two-layer nozzle. It should be noted that, in every layer of nozzle, can comprise manyIndividual nozzle. According to an embodiment of the present utility model, the particular type of cooling fluid is also not particularly limited, art technology peopleMember can select according to actual needs, and according to specific embodiment of the utility model, cooling fluid can adopt tar. According toAnother embodiment of the present utility model, pyrolysis gas was down to 60 Celsius in spray column in 1～2 second from 450～500 degrees CelsiusBelow degree. Thus, can further improve the separative efficiency of combustion gas and tar. Concrete, also pyrolysis gas can be supplied toSpray column adopts in advance cyclone separator to carry out gas solid separation processing to pyrolysis gas, thereby can have before spraying and processingEffect is removed the semicoke particle of carrying secretly in pyrolysis gas, and then can significantly reduce the dust content of tar.
Be heat according to the coal fast pyrogenation reaction system of the utility model embodiment by using multilayer heat accumulation type radiant tubeSolution process provides thermal source, the flow that can pass into the combustion gas of heat accumulation type radiant tube by adjustment realize to pyrolytic process accuratelyTemperature control, and heat accumulation type radiant tube is by quick commutation and the heat storage type combustion at two ends, has ensured the uniformity in temperature field, therebyCan significantly improve the fast pyrogenation efficiency of coal, and then improve the productive rate of tar, simultaneously more traditional use gas heat carrier orSolid thermal carriers are compared as the pyrolytic reaction device of pyrolysis thermal source, and Rapid Thermal analytical system of the present utility model does not need to arrangePreheating unit and carrier separative element, thus fast pyrogenation reaction process flow process can greatly be simplified, and then significantly reduce deviceFault rate and gained tar in dust content lower, in addition the utility model by use distributing device, can make coal in pyrolysisDispersed in district, and can prevent again the wearing and tearing of coal to radiant tube, and then significantly improve the operation stability of device.
With reference to figure 4, further comprise according to the coal Rapid Thermal analytical system of the utility model embodiment:
Coal hopper 400: according to embodiment of the present utility model, coal hopper 400 is suitable for storing coal. It should be noted that, this" coal hopper " in literary composition can be for storing any device of coal for what exist in prior art.
Dry riser 500: according to embodiment of the present utility model, dry riser 500 and react with fast pyrogenation respectivelyDevice 100 is connected with coal hopper 400, and is suitable for, before coal is carried out to fast pyrogenation reaction, adopting hot flue gas to be dried coalAnd lifting, thereby can obtain the mixture that contains cooling flue gas and moisture-free coal. According to an embodiment of the present utility model, heatThe temperature of flue gas is also not particularly limited, and those skilled in the art can select according to actual needs, new according to this practicalityThe specific embodiment of type, the temperature of hot flue gas can be 200～250 DEG C. Thus, not only can make full use of the waste heat of flue gas,System energy consumption is significantly reduced, and the fire safety hidden danger that can effectively avoid coal excess Temperature to bring. Concrete, abilityField technique personnel also can adopt cyclone separator to carry out gas solid separation to the mixture that contains cooling flue gas and moisture-free coal, and willThe moisture-free coal of gained is stored in moisture-free coal hopper, then in fast pyrolysis reactor, supplies with moisture-free coal by moisture-free coal hopperCarry out fast pyrogenation reaction, the cooling flue gas of gained is carried out discharging after purified treatment simultaneously again.
The first blower fan 600: according to embodiment of the present utility model, the first blower fan 600 respectively with heat accumulation type radiant tube 15 HesDry riser 500 and be connected, and be suitable for the high-temperature flue gas producing in heat accumulation type radiant tube to be supplied to and to dry riser as heatFlue gas uses. Thus, can make full use of the waste heat of flue gas, thereby further reduce production costs.
With reference to figure 5, further comprise according to the coal Rapid Thermal analytical system of the utility model embodiment:
Tar groove 700: according to embodiment of the present utility model, tar groove 700 is connected with spray column 300, and be suitable for focusingOil carries out sedimentation processing, thereby can obtain upper strata tar and lower floor's tar. Concrete, in tar groove, be provided with demixing plate, JiaoUpper strata tar in oil separates according to density variation with lower floor tar.
Oil pump 800: according to embodiment of the present utility model, oil pump 800 is connected with spray column 300 with tar groove 700 respectively,And being suitable for that upper strata tar is supplied to spray column uses as cooling fluid. Thus, by using the isolated tar of internal systemUse as cooling fluid, can save extra cooling fluid device for supplying, thereby save the investment of equipment cost.
Tar storage tank 900: according to embodiment of the present utility model, tar storage tank 900 is connected with tar groove 700, and is suitable forStore lower floor's tar. Concrete, can lower floor's tar be beaten to tar storage tank from tar groove by oil pump.
Water seal arrangement 1000: according to embodiment of the present utility model, water seal arrangement 1000 is connected with spray column 300, and suitableAccording to the timely pressure release of spray column internal pressure situation, thereby prevent the generation of dangerous accident.
With reference to figure 6, further comprise according to the coal Rapid Thermal analytical system of the utility model embodiment:
Combustion gas storage tank 1100: according to embodiment of the present utility model, combustion gas storage tank 1100 is connected with spray column 300, and suitableIn storing combustion gas.
The second blower fan 1200: according to embodiment of the present utility model, the second blower fan 1200 respectively with combustion gas storage tank 1100 HesHeat accumulation type radiant tube 15 is connected, and is suitable for a part for combustion gas to be supplied to heat accumulation type radiant tube 15. Thus, can realize systemRecycling of the middle energy, thus significantly reduce processing cost.
The 3rd blower fan 1300: according to embodiment of the present utility model, the 3rd blower fan 1300 respectively with combustion gas storage tank 1000 HesCloth gas entrance 102 is connected, and is suitable for another part of combustion gas to be supplied to cloth gas entrance 102 as cloth gas. Thus, canTo adopt combustion gas that the coal entering from coal entrance 101 is broken up, thereby it is evenly scattered in pyrolysis zone.
Understand for convenient, below the technique of the coal fast pyrogenation system that adopts the utility model embodiment is carried out in detailDescribe.
Concrete, coal (granularity is lower than 3mm) enters oven dry riser through the discharge port of coal hopper bottom, at hot flue gas (200～250 DEG C) effect under coal is dried and is promoted, obtain containing the mixture (80～100 of cooling flue gas and moisture-free coalDEG C), then the mixture that contains cooling flue gas and moisture-free coal obtaining is supplied to the first cyclone separator and carries out gas solid separationProcess, obtain moisture-free coal and cooling flue gas, the moisture-free coal obtaining is stored in moisture-free coal hopper, then will be stored in moisture-free coalMoisture-free coal in hopper is supplied in fast pyrolysis reactor in reaction compartment through the first conveying worm, is passed into and is held by adjustmentThe combustion gas of hot type radiant tube and the flow of air etc. are realized the accurate temperature controlling to pyrolytic process, make the heat accumulating type radiation of preheating sectionPipe temperature is 550～900 DEG C, and the heat accumulation type radiant tube temperature of fast pyrogenation section is 400～800 DEG C, completely the accumulation of heat of pyrolysis sectionFormula radiant tube temperature is 500～800 DEG C, and the coal entering is positioned at the distributing device of coal entrance below and breaks up and disperse in dispersion areaOpen, make coal be dispersed in pyrolysis zone, the pyrolysis gas of generation is from the pyrolysis gas outlet row on reactor body sidewall and/or topGo out, and the semicoke producing in pyrolytic process is discharged discharge zone through semicoke outlet, and by the high temperature cigarette producing in heat accumulation type radiant tubeGas is supplied to dry in riser through the first blower fan and as hot flue gas, coal is dried and promoted, and will discharge from pyrolysis gas outletPyrolysis gas be supplied to and in the second cyclone separator, carry out gas solid separation processing, separate and obtain semicoke particle and pure pyrolysisGas, the semicoke particle obtaining is stored in semicoke hopper, then will export the semicoke obtaining through semicoke and be stored in semicoke particleBe supplied in cold slag machine and carry out cooling processing through the second conveying worm, and the semicoke obtaining is stacked, will obtain purePyrolysis gas be supplied to and in spray column, spray processing, pyrolysis gas dropped to below 60 DEG C from 450～500 DEG C in 1～2 second,The wherein oil vapour formation tar that is captured, thus separate with combustion gas, and the tar obtaining is supplied in tar groove and carries outSedimentation processing, is provided with demixing plate in tar groove, and the upper strata tar in tar separates according to density variation with lower floor tar,And gained upper strata tar is supplied to spray column through oil pump pure pyrolysis gas is sprayed to processing, the lower floor's tar warp obtainingOil pump is squeezed in tar storage tank, and meanwhile, the gas storage that separation is obtained, to combustion gas storage tank, then will be stored in combustion gas storage tankIn a part of combustion gas be supplied in heat accumulation type radiant tube through the second blower fan, by another combustion gas in combustion gas storage tank through the 3rd windMachine is supplied to cloth gas entrance and as cloth gas, the coal entering from coal entrance is broken up, and it is evenly scattered in pyrolysis zone, willThe cooling flue gas obtaining in the first cyclone separator is supplied to gas cleaning unit and carries out purified treatment, the flue gas being purified,Then the flue gas after purifying is drained in atmosphere through chimney.
As mentioned above, according to the coal Rapid Thermal analytical system of the utility model embodiment can have advantages of be selected from followingOne of at least:
According to the coal Rapid Thermal analytical system of the utility model embodiment can process in powdery, low-order coal, and tarProductivity ratio Ge Jin experiment exceeds 50%, and because tar value is high, therefore the economy benefit of this technique is very high, is conducive to its cityPromote field;
Take heat accumulation type radiant tube technology according to the coal Rapid Thermal analytical system of the utility model embodiment, in pyrolysis ovenCan realize completely isolated air thermal dissociation, and take the hot flue gas of 200 DEG C to dry coal, coal is dried to be not easy to bring and is caught firePotential safety hazard, guaranteed system safety in operation;
Utilize heat accumulation type radiant tube that heat is provided according to the coal Rapid Thermal analytical system of the utility model embodiment, and combinationConvection current and heat conduction, make system can realize temperature field condition, and there is no heat carrier in whole technique, and technological process obtainsGreat simplification, the occupation area of equipment of same treatment amount and cost decline and approach half, and can extend the fault-free of systemContinuous operating time.
For further understanding, below with reference to the System Implementation of the coal fast pyrogenation of Fig. 7-10 couple the utility model embodimentThe method of coal fast pyrogenation is described in detail. According to embodiment of the present utility model, the method comprises:
S100: coal is carried out in fast pyrolysis reactor to fast pyrolysis processes
According to embodiment of the present utility model, cloth gas is supplied to distributing device from cloth gas entrance, by coal from coal entranceBe supplied in reaction compartment, combustible gas and air are supplied to respectively in heat accumulation type radiant tube, make combustible gas at heat accumulating type spokePenetrate burning generation heat in pipe coal is carried out to fast pyrolysis processes, thereby can obtain pyrolysis gas and semicoke.
According to an embodiment of the present utility model, the granularity of coal is also not particularly limited, and those skilled in the art canSelect according to actual needs, according to specific embodiment of the utility model, the granularity of coal can be lower than 3mm. Thus, canSolve the unserviceable difficult problem of powdery coal in prior art. According to another embodiment of the present utility model, the fast pyrogenation of coalTime is 2～30 seconds. Thus, can effectively reduce secondary pyrolytic reaction and the cross-linking reaction degree of thermal decomposition product, reduce pyrolysisThe output of combustion gas and semicoke in process, thus significantly improve the productive rate of tar.
Concrete, the flow etc. that can pass into the combustion gas of heat accumulation type radiant tube by adjustments is realized accurate to pyrolytic processTemperature control, and adopt rapid switching valve, the temperature field of single radiant tube is more or less the same in 30 DEG C, thereby ensures in reaction compartmentThe uniformity in temperature field, and to make the heat accumulation type radiant tube temperature of preheating section by adjustment be 550～900 DEG C, fast pyrogenationThe heat accumulation type radiant tube temperature of section is 500～800 DEG C, and the heat accumulation type radiant tube temperature of pyrolysis section is 500～800 DEG C completely.
S200: semicoke is carried out cooling in cold slag machine
According to embodiment of the present utility model, semicoke is supplied in cold slag machine through semicoke outlet, thus can be to semicokeCarry out cooling processing. Concrete, exporting from semicoke the semicoke temperature obtaining is 500～600 DEG C, what obtain through cold slag machine is coolingSemicoke temperature lower than 50 DEG C.
S300: pyrolysis gas is carried out in cooling device to cooling processing
According to embodiment of the present utility model, in cooling device, carry out cold to the pyrolysis gas of discharging through pyrolysis gas outletBut process, thereby can obtain tar and combustion gas. According to specific embodiment of the utility model, cooling device can be sprayTower, in spray column, adopts cooling fluid to spray pyrolysis gas, thereby carries out cooling processing. Concrete, cooling fluid concreteType is also not particularly limited, and those skilled in the art can select according to actual needs, according to tool of the present utility modelBody embodiment, cooling fluid can adopt tar. According to another embodiment of the present utility model, pyrolysis gas in spray column 1In～2 seconds, be down to below 60 degrees Celsius from 450～500 degrees Celsius. Thus, can further improve the effect that separates of combustion gas and tarRate. Concrete, also can, pyrolysis gas being supplied to before spray column spray processing, adopt in advance cyclone separator to heatVent one's spleen and carry out gas solid separation processing, thereby can effectively remove the semicoke particle of carrying secretly in pyrolysis gas, and then can significantly reduceThe dust content of tar.
Many by using according to the method for the System Implementation coal fast pyrogenation of the coal fast pyrogenation of the utility model embodimentLayer heat accumulation type radiant tube, for pyrolytic process provides thermal source, can pass into by adjustment the flow reality of the combustion gas of heat accumulation type radiant tubeThe now accurate temperature controlling to pyrolytic process, and heat accumulation type radiant tube, by quick commutation and the heat storage type combustion at two ends, has ensuredThe uniformity in temperature field, thus can significantly improve the fast pyrogenation efficiency of coal, and then improve the productive rate of tar, simultaneously more traditionalUse gas heat carrier or solid thermal carriers compare as the pyrolytic reaction device of pyrolysis thermal source, Rapid Thermal of the present utility modelIn the method for separating, do not need to arrange preheating unit and carrier separative element, thereby can greatly simplify fast pyrogenation reaction process streamJourney, and then it is lower significantly to reduce in the fault rate of device and gained tar dust content, the utility model is by using cloth in additionDevice, can make coal dispersed in pyrolysis zone, and can prevent again the wearing and tearing of coal to radiant tube, and then significantly improves deviceOperation stability.
With reference to figure 8, enter according to the method for the System Implementation coal fast pyrogenation of the coal fast pyrogenation of the utility model embodimentOne step comprises:
S400: adopt hot flue gas that coal is dried and is promoted in oven dry riser in advance
According to embodiment of the present utility model, before coal is supplied to reaction compartment, in oven dry riser, adopt in advanceCoal is dried and is promoted with hot flue gas, thereby can obtain the mixture that contains cooling flue gas and moisture-free coal. According to this realityWith a novel embodiment, the temperature of hot flue gas is also not particularly limited, and those skilled in the art can be according to actual needsSelect, according to specific embodiment of the utility model, the temperature of hot flue gas can be 200～250 DEG C. Thus, not only canTo make full use of the waste heat of flue gas, system energy consumption is significantly reduced, and can effectively avoid that coal excess Temperature bringsFire safety hidden danger. Concrete, those skilled in the art also can adopt cyclone separator to containing cooling flue gas and moisture-free coalMixture carries out gas solid separation, and the moisture-free coal of gained is stored in moisture-free coal hopper, then by moisture-free coal hopper to soonSpeed is supplied with moisture-free coal in pyrolysis reactor and is carried out fast pyrogenation reaction, the cooling flue gas of gained is carried out after purified treatment more simultaneouslyDischarge.
S500: adopt the first blower fan that high-temperature flue gas is supplied to and is dried in riser
According to embodiment of the present utility model, the high temperature that adopts the first blower fan that high-temperature flue gas is produced through heat accumulation type radiant tubeFlue gas is supplied to dry in riser and uses as hot flue gas. Thus, can make full use of the waste heat of flue gas, thereby further fallLow production cost.
With reference to figure 9, enter according to the method for the System Implementation coal fast pyrogenation of the coal fast pyrogenation of the utility model embodimentOne step comprises:
S600: tar is supplied to and carries out sedimentation processing in tar groove
According to embodiment of the present utility model, tar is supplied to and in tar groove, carries out sedimentation processing, thereby can obtainUpper strata tar and lower floor's tar. Concrete, in tar groove, be provided with demixing plate, the upper strata tar in tar and lower floor's tar basisDensity variation separates.
S700: adopt oil pump that the upper strata tar in tar groove is supplied to spray column
According to embodiment of the present utility model, adopt oil pump that the upper strata tar in tar groove is supplied to spray column as coldBut liquid uses. Thus, by using the isolated tar of internal system to use as cooling fluid, can save extra cooling fluidDevice for supplying, thereby the investment of saving equipment cost.
S800: the lower floor's tar in tar groove is stored in to tar tank
According to embodiment of the present utility model, the lower floor's tar in tar groove is stored to lower floor's tar. Concrete, Ke YitongCross oil pump beats lower floor's tar to tar storage tank from tar groove.
With reference to Figure 10, enter according to the method for the System Implementation coal fast pyrogenation of the coal fast pyrogenation of the utility model embodimentOne step comprises:
S900: by gas storage in combustion gas storage tank
According to embodiment of the present utility model, will in spray column, separate the gas storage obtaining in combustion gas storage tank.
S1000: adopt the second blower fan that a part for combustion gas is supplied to heat accumulation type radiant tube as fuel
According to embodiment of the present utility model, adopt the second blower fan that a part for combustion gas is supplied to heat accumulation type radiant tube and doFor fuel. Thus, can realize recycling of the energy in system, thereby significantly reduce processing cost.
S1100: adopt the 3rd blower fan that another part of combustion gas is supplied to cloth gas entrance
According to embodiment of the present utility model, adopt the 3rd blower fan that another part of combustion gas is supplied to cloth gas entrance and doFor cloth gas. Thus, can adopt combustion gas that the coal entering from coal entrance is broken up, thereby it is evenly scattered in pyrolysis zone.
It should be noted that, above-mentioned to be suitable for equally this coal for the described feature and advantage of coal Rapid Thermal analytical system fastThe method of speed pyrolysis repeats no more herein.
Below with reference to specific embodiment, the utility model is described, it should be noted that, these embodiment are onlyDescriptive, and limit never in any form the utility model.
Embodiment 1
The present embodiment 1 adopts the coal Rapid Thermal analytical system of Fig. 1-6, and wherein, 30 layers of heat accumulation type radiant tube 15 are in pyrolysis zoneSpaced apart along reactor body 10 short transverses in 13, and adjacent heat accumulation type radiant tube is high along level and reactor bodyOn degree both direction, separate and parallel distribution straggly with uniform distances. Heat accumulation type radiant tube adopts the round tube that caliber is 100mm,In level, the outer wall of adjacent radiation pipe distance is 100mm, and the outer wall spacing of levels adjacent radiation pipe is 200mm.
Utilize fast pyrogenation reaction system of the present utility model to process brown coal, the scope of particle diameter below 1mm, itsBrown coal are analyzed data, process operation parameter and material balance in Table 1-3, fast pyrogenation time 30s. Tar as shown in Table 3 producesRate, up to 12.3wt%, is the tar yield 150% that Ge Jinfa obtains, and in tar, dustiness is 2.4wt%, by filteringAfter can directly use as coal tar hydrogenating.
Table 1 brown coal are analyzed data
Table 2 process operation parameter
| Sequence number | Parameter name | Parameter value |
| 1 | Riser intake air temperature | 200℃ |
| 2 | Riser air outlet temperature | 80℃ |
| 3 | Preheating section radiant tube temperature | 550℃ 12 --> |
| 4 | Reactor preheating section temperature | 452℃ |
| 5 | Fast pyrogenation section radiant tube temperature | 500℃ |
| 6 | Reactor fast pyrogenation section temperature | 487℃ |
| 7 | Pyrolysis section radiant tube temperature completely | 500℃ |
| 8 | The complete pyrolysis section temperature of reactor | 492℃ |
Note: the reactor in table 2 refers to fast pyrolysis reactor.
Table 3 material balance table
Embodiment 2
The present embodiment 1 adopts the coal Rapid Thermal analytical system of Fig. 1-6, and wherein, 6 layers of heat accumulation type radiant tube 15 are in pyrolysis zone 13Middle spaced apart along reactor body 10 short transverses, and adjacent heat accumulation type radiant tube is along level and reactor body heightOn both direction, separate with uniform distances and parallel distribution straggly. Heat accumulation type radiant tube adopts the round tube that caliber is 500mm, waterThe outer wall distance of flat upper adjacent radiation pipe is 500mm, and the outer wall spacing of levels adjacent radiation pipe is 500mm.
Utilize fast pyrogenation reaction system of the present utility model to process brown coal, particle diameter is in the scope of 1-3mm, and it is brownCoal analysis data, process operation parameter and material balance be in Table 4-6, fast pyrogenation time 2s. Tar yield is as shown in Table 69.6wt%, is the tar yield 163% that Ge Jinfa obtains, and in tar, dustiness is 2.3wt%, after filtering, also canDirectly use as coal tar hydrogenating.
Table 4 brown coal are analyzed data
Table 5 process operation parameter
| Sequence number | Parameter name | Parameter value |
| 1 | Riser intake air temperature | 250℃ |
| 2 | Riser air outlet temperature | 100℃ |
| 3 | Preheating section radiant tube temperature | 900℃ |
| 4 | Reactor preheating section temperature | 490℃ |
| 5 | Fast pyrogenation section radiant tube temperature | 800℃ |
| 6 | Reactor fast pyrogenation section temperature | 557℃ |
| 7 | Pyrolysis section radiant tube temperature completely | 800℃ 13 --> |
| 8 | The complete pyrolysis section temperature of reactor | 596℃ |
Note: the reactor in table 5 refers to fast pyrolysis reactor.
Table 6 material balance table
Embodiment 3
The present embodiment 1 adopts the coal Rapid Thermal analytical system of Fig. 1-6, and wherein, 15 layers of heat accumulation type radiant tube 15 are in pyrolysis zoneSpaced apart along reactor body 10 short transverses in 13, and adjacent heat accumulation type radiant tube is high along level and reactor bodyOn degree both direction, separate and parallel distribution straggly with uniform distances. Heat accumulation type radiant tube adopts the round tube that caliber is 300mm,In level, the outer wall of every layer of adjacent radiation pipe distance is 200mm, and the outer wall spacing of levels adjacent radiation pipe is 300mm.
Utilize fast pyrogenation reaction system of the present utility model to process brown coal, particle diameter is in the scope of 1-3mm, and it is brownCoal analysis data are identical with embodiment 2, and process operation parameter and material balance be in Table 7-8, fast pyrogenation time 2.9s. By table 8Known tar yield is 9.9wt%, is the tar yield 168% that Ge Jinfa obtains, and in tar, dustiness is 1.5wt%,After filtering, also can directly use as coal tar hydrogenating.
Table 7 process operation parameter
| Sequence number | Parameter name | Parameter value |
| 1 | Riser intake air temperature | 225℃ |
| 2 | Riser air outlet temperature | 90℃ |
| 3 | Preheating section radiant tube temperature | 650℃ |
| 4 | Reactor preheating section temperature | 480℃ |
| 5 | Fast pyrogenation section radiant tube temperature | 680℃ |
| 6 | Reactor fast pyrogenation section temperature | 532℃ |
| 7 | Pyrolysis section radiant tube temperature completely | 690℃ |
| 8 | The complete pyrolysis section temperature of reactor | 576℃ |
Note: the reactor in table 7 refers to fast pyrolysis reactor.
Table 8 material balance table
In the description of this description, reference term " embodiment ", " some embodiment ", " example ", " specifically showExample " or the description of " some examples " etc. mean the specific features, structure, material or the spy that describe in conjunction with this embodiment or examplePoint is contained at least one embodiment of the present utility model or example. In this manual, the schematic table to above-mentioned termState not must for be identical embodiment or example. And specific features, structure, material or the feature of description canIn one or more embodiment in office or example with suitable mode combination. In addition, not conflicting in the situation that, this areaTechnical staff the feature of the different embodiment that describe in this description or example and different embodiment or example can be enteredRow combination and combination.
Although illustrated above and described embodiment of the present utility model, be understandable that, above-described embodiment isExemplary, can not be interpreted as that, to restriction of the present utility model, those of ordinary skill in the art is in scope of the present utility modelIn can change above-described embodiment, amendment, replacement and modification.
Claims (5)
1. a coal Rapid Thermal analytical system, is characterized in that, comprising:
Fast pyrolysis reactor,
Described fast pyrolysis reactor comprises:
Reactor body, limits reaction compartment in described reactor body, described reaction compartment form from top to bottom dispersion area,Pyrolysis zone and discharge zone;
Described dispersion area comprises:
Distributing device;
Coal entrance, described coal entrance is positioned at the top of described distributing device;
Cloth gas entrance, described cloth gas entrance is connected with described distributing device;
Described pyrolysis zone comprises:
Multilayer heat accumulation type radiant tube, described multilayer heat accumulation type radiant tube in described pyrolysis zone along described reactor body height sideTo spaced apart, and every layer of described heat accumulation type radiant tube comprises the heat accumulation type radiant tube that multiple along continuous straight runs are spaced apart;
Described discharge zone comprises: semicoke outlet;
Multiple pyrolysis gas outlets, described multiple pyrolysis gas outlets are separately positioned on described dispersion area and/or described pyrolysis zone;
Cold slag machine, described cold slag machine is connected with described semicoke outlet;
Cooling device, described cooling device is connected with described pyrolysis gas outlet, and wherein, described cooling device is spray column;
Tar groove, described tar groove is connected with described spray column;
Oil pump, described oil pump is connected with described spray column with described tar groove respectively;
Tar storage tank, described tar storage tank is connected with described tar groove;
Water seal arrangement, described water seal arrangement is connected with described spray column;
Combustion gas storage tank, described combustion gas storage tank is connected with described spray column;
The second blower fan, described the second blower fan is connected with described heat accumulation type radiant tube with described combustion gas storage tank respectively; And
The 3rd blower fan, described the 3rd blower fan is connected with described cloth gas entrance with described combustion gas storage tank respectively.
2. coal Rapid Thermal analytical system according to claim 1, is characterized in that, further comprises:
Coal hopper;
Dry riser, described oven dry riser is connected with described fast pyrolysis reactor with described fine coal hopper respectively; And
The first blower fan, described the first blower fan is connected with described oven dry riser with described heat accumulation type radiant tube respectively.
3. coal Rapid Thermal analytical system according to claim 1, is characterized in that, every layer of described heat accumulation type radiant tube comprisesMultiple parallel and equally distributed heat accumulation type radiant tubes and each described heat accumulation type radiant tube and adjacent upper and lower two-layer heat accumulating typeEach heat accumulation type radiant tube in radiant tube is parallel and be in staggered distribution along reactor body short transverse.
4. coal Rapid Thermal analytical system according to claim 1, is characterized in that, the height of described reactor body is 2～20m, the caliber of described heat accumulation type radiant tube is 100～500mm, the horizontal range between adjacent described heat accumulation type radiant tube outer wallWith vertical distance be respectively 100～500mm independently.
5. coal Rapid Thermal analytical system according to claim 1, is characterized in that, on described heat accumulation type radiant tube, is provided withGas control valve.
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| CN201520755691.6U CN205241601U (en) | 2015-09-25 | 2015-09-25 | System for coal rapid pyrolysis |
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| CN201520755691.6U CN205241601U (en) | 2015-09-25 | 2015-09-25 | System for coal rapid pyrolysis |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105154120A (en) * | 2015-09-25 | 2015-12-16 | 北京神雾环境能源科技集团股份有限公司 | Coal flash pyrolysis system and method |
| CN105969410A (en) * | 2016-05-27 | 2016-09-28 | 华电重工股份有限公司 | Novel pyrolyzing furnace and application |
| CN106047377A (en) * | 2016-05-27 | 2016-10-26 | 华电重工股份有限公司 | Pyrolyzing furnace, flame path of pyrolyzing furnace and application of pyrolyzing furnace |
| WO2017049637A1 (en) * | 2015-09-25 | 2017-03-30 | 北京神雾环境能源科技集团股份有限公司 | System and method for rapid pyrolysis of coal |
-
2015
- 2015-09-25 CN CN201520755691.6U patent/CN205241601U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105154120A (en) * | 2015-09-25 | 2015-12-16 | 北京神雾环境能源科技集团股份有限公司 | Coal flash pyrolysis system and method |
| WO2017049637A1 (en) * | 2015-09-25 | 2017-03-30 | 北京神雾环境能源科技集团股份有限公司 | System and method for rapid pyrolysis of coal |
| CN105154120B (en) * | 2015-09-25 | 2017-11-03 | 神雾科技集团股份有限公司 | The system and method for coal fast pyrogenation |
| CN105969410A (en) * | 2016-05-27 | 2016-09-28 | 华电重工股份有限公司 | Novel pyrolyzing furnace and application |
| CN106047377A (en) * | 2016-05-27 | 2016-10-26 | 华电重工股份有限公司 | Pyrolyzing furnace, flame path of pyrolyzing furnace and application of pyrolyzing furnace |
| CN105969410B (en) * | 2016-05-27 | 2019-02-05 | 华电重工股份有限公司 | A kind of pyrolysis oven and application |
| CN106047377B (en) * | 2016-05-27 | 2019-03-29 | 华电重工股份有限公司 | A kind of quirk of pyrolysis oven, pyrolysis oven and application |
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