CN104610990A - Low-rank coal adiabatic pyrolysis device - Google Patents
Low-rank coal adiabatic pyrolysis device Download PDFInfo
- Publication number
- CN104610990A CN104610990A CN201510017987.2A CN201510017987A CN104610990A CN 104610990 A CN104610990 A CN 104610990A CN 201510017987 A CN201510017987 A CN 201510017987A CN 104610990 A CN104610990 A CN 104610990A
- Authority
- CN
- China
- Prior art keywords
- adiabatic
- gas
- temperature
- destructive distillation
- room
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/04—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of powdered coal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B49/00—Destructive distillation of solid carbonaceous materials by direct heating with heat-carrying agents including the partial combustion of the solid material to be treated
- C10B49/02—Destructive distillation of solid carbonaceous materials by direct heating with heat-carrying agents including the partial combustion of the solid material to be treated with hot gases or vapours, e.g. hot gases obtained by partial combustion of the charge
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/08—Non-mechanical pretreatment of the charge, e.g. desulfurization
- C10B57/10—Drying
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Coke Industry (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention relates to a low-rank coal adiabatic pyrolysis device which is composed of a charging hopper, an adiabatic drying chamber, an adiabatic dry distillation chamber and a coke quenching tank which are communicated in sequence, wherein the adiabatic drying chamber is the same as the adiabatic dry distillation chamber in diameter and size; gas insulation layers which have the same temperature as the adiabatic drying chamber and the adiabatic dry distillation chamber are respectively arranged on the peripheries; outer insulation layers are respectively arranged on the peripheries of the adiabatic drying chamber and the adiabatic dry distillation chamber. The low-rank coal adiabatic pyrolysis device is simple in structure and good in adiabatic effect, coal materials move downwards by means of gravity, tail gas generated in the drying process and tail gas generated in the pyrolysis process are separately processed, the retention time of discharge quantity is easy to control, and the air inlet temperature is basically consistent with the center temperature of a reactor, so that the pyrolysis efficiency of a coal pyrolysis reactor is greatly improved.
Description
Technical field
The present invention relates to a kind of low-rank coal pyrolysis reactor, is a kind of gas heat-carrying formula pyrolysis of coal device comprising loading hopper, adiabatic drying room, adiabatic destructive distillation room and coke quenching tank and form specifically.
Background technology
Low-rank coal is in pyrolytic process, gas heat-carrying is adopted to carry out the pyrolysis of coal, can improve the heat exchange efficiency of coal and thermal barrier, therefore in guarantee pyrolytic process, in reactor, gas temperature is constant is the important channel of improving adiabatic reactor low-rank coal gas heat-carrying pyrolytic reaction efficiency.
The heat insulating construction of existing pyrolysis of coal reactor is mainly enclosed with high-temperature refractory fiber material and twines at reactor outer wall in reactor periphery is full of resistance wire formation insulation construction.
The prior art that can obtain, if publication number is that 102559222A discloses " a kind of low-temperature pyrolysis stove " and provides the low-temperature pyrolysis stove that a kind of structure is simple, energy consumption is low, easy to operate, furnace interior is provided with boiler tube, boiler tube is connected with the cooling system of described body of heater, final connection natural gas gathering system, the boiler tube of described body of heater and sealing is horizontal type structure, for material pyrolytic process.But this low-temperature pyrolysis stove thermal insulation layer adopts refractory fibre to make lagging material, reduces overall thermal utilization ratio.For another example utility model patent discloses " in a kind of hot vertical dry furnace ".It is made up of charging machine, body of heater and slag discharging device, be characterized in that body of heater is vertical structure, the retort section on top and the gasification section of bottom is divided into by the arch abutment of central waist in cranial cavity, arch abutment is provided with the annular mixing chamber communicated with cycling hot gas entry, in furnace chamber, the below of the top charging mouth of retort section is provided with a gust umbrella, and battle array umbrella arranges the destructive distillation product led to outside body of heater and derives passage; The stone or metal plate for standing a stove on as a precaution against fire of bottom of furnace body is provided with the residue extraction mechanism of transmission rig drive, and in slag discharging device, public attention directly passes in the gasification section of body of heater.This patent structure is simple, reasonable in design, easy to maintenance, can process oil length is low, fixed carbon content the is low particle diameter lean ore resinous shale at 8 ~ 75mm.Its body of heater shell is the cylinder of Plate Welding, external diameter is 3 ~ 4m, claim 150 ~ 250mm thick flame retardant coating in needing, fill insulation with slag wool or sand and bear expansion between flame retardant coating and steel shell, but flame retardant coating increases thermal losses, reduce heat utilization efficiency, temperature distribution in body of heater can not be ensured evenly, stable.
Adiabatic reactor disclosed in some is the multistage heating by electric cooker by controlling reactor outer wall in addition, makes the outside wall temperature of reactor follow the tracks of the internal temperature of reactor, reduces the internal-external temperature difference of reactor, thus reduce thermosteresis, reach the effect of thermal insulation.Such as wear that winter jasmine etc. delivers " exploitation and design [J] of laboratory adiabatic reactor. chemical reaction engineering and technique, 1994,10 (3): 261-265 " a kind of structure of adiabatic reactor was mentioned, reactor is the Stainless Steel pipe of caliber Φ 57mm × 3.5mm, the stainless steel sleeve pipe of Φ 3mm × 0.5mm is equipped with at reaction tubes center, interpolation Φ 1mm moving up and down thermopair, assaying reaction bed axial distribution temperature.The concentric tube-shaped tube of a Φ 300mm is had, in-built heat-insulating material outside reaction tubes.Be wrapped with three sections or multistage resistance wire outward respectively at cylinder, regulating voltage controls thermal insulation layer temperature, ensures that the temperature in same cross section inside reactor and thermal insulation layer is similar to, ensures insulation effect.The weak point of this adiabatic reactor is the temperature control of electric furnace is regulate by temperature of reactor change, and temperature is followed the tracks of exists lag issues, and internally conduct heat slowly in periphery, expend time in length, complicated operation, maintenance difficult.
Also have publication number to be that CN101961628A discloses " a kind of middle-size and small-size adiabatic reactor ", it is characterized in that reactor skin is provided with the insulating jacket of vacuum-pumping; The upper and lower of chuck is respectively equipped with upper and lower isothermal body and upper and lower thermal insulation layer, the outside of chuck is provided with side-wall heater and thermal insulation layer, insulating jacket and the upper and lower weld of reaction tubes arrange temperature element respectively, series connection controls the well heater in upper and lower isothermal body respectively, and the temperature of carrying out inside and outside reaction tubes turnover material place is followed the tracks of.Maintain vacuum jacket vacuum state energy consumption in this invention high, reactor material requirement of strength is high, and easy loss is unfavorable for that heavy industrialization utilizes.
Summary of the invention
The concrete technical problems that the present invention will solve is the thermal insulation layer how arranging uniform temp in the periphery of kiln and destructive distillation room, to ensure the temperature of the gaseous heat-carrier of reactor center, the adiabatic pyrolysis efficiency of further raising, and provide a kind of low-rank coal adiabatic pyrolysis installation.
The adiabatic pyrolysis installation of a kind of low-rank coal provided, comprise loading hopper, adiabatic drying room, adiabatic destructive distillation room, coke quenching tank be communicated with formation successively, it is characterized in that: described adiabatic drying room is identical with the diameter of adiabatic destructive distillation room, be respectively arranged with the gas heat insulating floor identical with adiabatic destructive distillation chambers temp with adiabatic drying room in periphery, the periphery of gas heat insulating layer is provided with external thermal insulation.
The additional technical feature of technique scheme is as follows.
The diameter of described adiabatic drying room and adiabatic destructive distillation room is 149:261 with the diameter ratio of gas heat insulating floor respectively.
The diameter of described adiabatic drying room and adiabatic destructive distillation room is 149:500 with the diameter ratio of external thermal insulation respectively.
The structure of described adiabatic drying room and adiabatic destructive distillation room is that cylinder upper surface is communicated with round platform, and the angle of described round platform is 55 ~ 60 °.
The aspect ratio of described cylinder and round platform is 6:1 ~ 7:1.
Discharging lower rotary table and discharging top rotary table is respectively arranged with bottom described adiabatic drying room and adiabatic destructive distillation room; Discharging top rotary table is wherein provided with gas distributor, the discharging top rotary table of gas distributor periphery is provided with and fans annular relief hole; Described gas distributor is made up of top conical part and bottom cylindrical portions; Described top cone surface is equipped with the aperture being less than coal charge granularity, and cylinder side, bottom is provided with gas inlet and is communicated with high-temperature gas import; Discharging lower rotary table wherein offers the lower fan annular relief hole corresponding on discharging top rotary table, and connection rotating shaft rotates discharge by conical gear by driven by motor on discharging lower rotary table.
The conical surface of described top cone and the axial angle of gas distributor are 36 ~ 45 °.
∩ or ∧ type structure is provided with between the annular relief hole of described upper fan.
The high-temperature gas import of described adiabatic drying room is 100 ~ 350 DEG C with the heat-carrying gas temperature that passes into of insulation gas feed.
The high-temperature gas import of described adiabatic destructive distillation room is 100 ~ 750 DEG C with the heat-carrying gas temperature that passes into of insulation gas feed.
The adiabatic pyrolysis installation of above-mentioned a kind of low-rank coal, advantage compared with prior art and positively effect as follows.
Drying process and retort process arrange by this apparatus structure respectively, ensure that the separately process of the moisture in dehydration and the pyrolysis gas in pyrolytic process, thus avoid the impact of water vapour on tar yield, further increase the purity of product.
The structure design that this apparatus structure adopts adiabatic drying room equal with adiabatic destructive distillation room diameter, ensure that adiabatic drying room is identical with coal charge treatment capacity with the superficial velocity of adiabatic destructive distillation room, reasonably carry out the pyrolytic process of coal, farthest make use of drying and distillation apparatus.
This apparatus structure encloses in adiabatic drying room and adiabatic destructive distillation outdoor the gas heat insulating floor being respectively arranged with and can arriving uniform temp with it, thus ensure that inlet air temperature and reactor center temperature are basically identical, effectively reduce the heat problem of transmission of gas thermophore and the external world in dry distillation of coal process.
This apparatus structure encloses in adiabatic drying room and adiabatic destructive distillation outdoor and is respectively arranged with external thermal insulation, reduce further coal gas thermophore and extraneous heat transmission in retort process.
The diameter that this apparatus structure adopts adiabatic drying room and adiabatic destructive distillation room is 149:261 structure with the diameter ratio of gas heat insulating floor respectively, and be drawn by chemical engineering thermodynamics Theoretical Calculation, now insulation effect reaches best; The diameter adopting adiabatic drying room and adiabatic destructive distillation room is 149:500 structure with the diameter ratio of external thermal insulation respectively, and heat insulation effect is best.
This apparatus structure adopts the structure of adiabatic drying room and adiabatic destructive distillation room to be that cylinder upper surface is communicated with round platform, the angle of described round platform is 55 ~ 60 °, this structure is conducive to heat-carrying gas and assembles at reaction unit top, is conducive to discharging, reduces the consume to device.
This apparatus structure adopts the aspect ratio of cylinder and round platform to be 6:1 ~ 7:1 in adiabatic drying room and adiabatic destructive distillation room, ensure that the reaction chamber of reaction unit is relatively large, and then ensure that the treatment capacity of coal charge, improve the space availability ratio of reaction unit.
This apparatus structure is respectively arranged with gas distributor bottom adiabatic drying room and adiabatic destructive distillation room, and the structure of this gas distributor ensure that the thermally equivalent of coal charge; The bottom of gas distributor is provided with discharging rotating disk, achieves the control discharge of coal charge; Discharging rotating disk is provided with ∩ or ∧ type structure, ensure that coal charge can not be piled up on discharging top rotary table, be conducive to material relief hole and discharge.
This device is compared with the adiabatic pyrolysis reactor of existing coal, this apparatus structure is simple, insulation effect is good, coal charge relies on gravity descending, drying process produces tail gas and separates with pyrolytic process tail gas and process, discharging how many and residence time is easy to control, inlet air temperature and reactor center temperature basically identical, drastically increase the pyrolysis efficiency of pyrolysis of coal reactor.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of adiabatic pyrolysis reaction unit of the present invention.
Fig. 2 is reactor bottom gas distributor of the present invention and discharging turntable structure schematic diagram.
Fig. 3 is the theory structure schematic diagram of reactor rotating disk of the present invention.
Fig. 4 is that discharging top rotary table of the present invention is fanned between annular relief hole and installed three ∩ or ∧ shape plate structure schematic diagram additional.
Fig. 5 is the adiabatic cylinder of pyrolysis reaction unit of the present invention and the structural representation of round platform.
Fig. 6 is the adiabatic destructive distillation room air inlet temperature of the present invention and central section temperature contrast effect figure in time.
Fig. 7 is the temperature contrast effect figure in time of the adiabatic destructive distillation room air inlet temperature of the present invention and adiabatic destructive distillation indoor.
In figure: 1: loading hopper; 2: adiabatic drying room; 3: high-temperature gas exports; 4: thermometer hole; 5: high-temperature gas import; 6: discharging rotating disk; 7: discharge baffle; 8: mechanical sealing member; 9: rotating shaft; 10: insulation pneumatic outlet; 11: external thermal insulation; 12: gas heat insulating layer; 13: insulation gas feed; 14: gas distributor; 15: discharging sleeve; 16: flange I; 17: flange II; 18: high-temperature ball valve I; 19: flange III; 20: high-temperature ball valve II; 21: flange IV; 22: high-temperature ball valve III; 23: coke quenching tank; 24: flange V; 25: discharging lower rotary table; 26: discharging top rotary table; 27: the gas inlet of gas distributor; 28: fan annular relief hole.
2 ': adiabatic destructive distillation room; 3 ': high-temperature gas exports; 4 ': thermometer hole; 5 ': high-temperature gas import; 6 ': discharging rotating disk; 7 ': discharge baffle; 8 ': mechanical sealing member; 9 ': rotating shaft; 10 ': insulation pneumatic outlet; 11 ': external thermal insulation; 12 ': gas heat insulating layer; 13 ': insulation gas feed; 14 ': gas distributor; 15 ': discharging sleeve.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is further illustrated.
Embodiment 1
Implementing the adiabatic pyrolysis installation of a kind of low-rank coal is enclose in destructive distillation outdoor to be disposed with gas heat insulating layer and external thermal insulation, and when carrying out low-rank coal thermal insulation pyrolytic reaction, the heat-carrying temperature gas with pyrolytic reaction isothermal is passed in the floor of gas heat insulating room, make the central reaction temperature of the wall surface temperature of reaction unit and reaction unit basically identical, there is not heat exchange in gas heat insulating floor and kiln/destructive distillation room, avoids thermal losses to reduce.The innovative approach specifically taked coaxially arranges gas heat insulating layer chuck at the outdoor layer wall peripheral of destructive distillation, and be provided with circulation of hot gases pipeline, gas after heating is entered from the insulation gas feed of adiabatic reaction apparatus and high-temperature gas import respectively, high temperature heat-carrying gas by after gas distribution dish with coal charge uniform heat exchange, gas carrier carry under one's arms pyrolytic reaction gaseous product from high-temperature gas outlet discharge; Insulation gas passes into gas heat insulating layer through insulation gas feed, is used for reducing device and the heat exchange of gas heat insulating layer, reduces thermal losses, is then discharged by insulation pneumatic outlet, is partly refluxed to heating unit entrance.Embodiment is as follows.
As described in accompanying drawing 1-7, a kind of adiabatic pyrolysis reaction unit to be communicated with successively with coke quenching tank 23 by loading hopper 1, adiabatic drying room 2, adiabatic destructive distillation room 2 ' to form.Wherein, be linked in sequence in loading hopper 1 lower end adiabatic drying room 2, adiabatic destructive distillation room 2 ' and coke quenching tank 23.Be connected by access ramp between described adiabatic drying room 2 with adiabatic destructive distillation room 2 ', adiabatic destructive distillation room 2 ' is connected by access ramp with between coke quenching tank 23, and is controlled by high-temperature ball valve 22.Access ramp is made up of discharge baffle 7/7 ' and discharging sleeve 15/15 ', and the angle of described access ramp is 30 ~ 90 °.Coal charge is controlled to add from top by high-temperature ball valve 20, after drying processed, chute is fallen into by the relief hole 28 on discharging rotating disk 6/6 ', then controlled to enter destructive distillation room into thermal insulation by high-temperature ball valve 18, coal charge after pyrolysis falls into access ramp by the relief hole on discharging rotating disk 6/6 ', and semicoke enters in coke quenching tank 23.
This device adiabatic drying section is made up of adiabatic drying room 2, high-temperature gas import 5 and high-temperature gas outlet 3, insulation gas feed 13 and insulation pneumatic outlet 10, gas heat insulating floor 12, external thermal insulation 11, gas distributor 14, discharging rotating disk 6.The described high 440mm in adiabatic drying room 2, diameter is 149mm, and from height 380mm cavity diameter from 149mm, contracting becomes 84mm, and reducing conical surface central position level attitude arranges high-temperature gas outlet 3.Described gas heat insulating layer 12 is the gas cavity of the external coaxial setting of a reactor cylinder, and bottom is provided with insulation gas feed 13, and top design has insulation pneumatic outlet 10.
The adiabatic retort section of this device is made up of adiabatic destructive distillation room 2 ', high-temperature gas import 5 ' and high-temperature gas outlet 3 ', insulation gas feed 13 ' and insulation pneumatic outlet 10 ', gas heat insulating room 12 ', external thermal insulation 11 ', gas distributor 14 ', discharging rotating disk 6 '.The described adiabatic high 440mm in destructive distillation room 2 ', diameter is 149mm, and from height 380mm cavity diameter from 149mm, contracting becomes 84mm, and reducing conical surface central horizontal position arranges high-temperature gas outlet 3 '.Described gas heat insulating room 12 ' is the gas cavity of the external coaxial setting of a reactor cylinder, is provided with insulation gas feed 13 ' and insulation pneumatic outlet 10 '.
The diameter of this device adiabatic drying room 2 and adiabatic destructive distillation room 2 ' is 149mm; The diameter of gas heat insulating layer 12/12 ' is 261mm, the diameter of external thermal insulation 11/11 ' is 500mm, described external thermal insulation 11/11 ', and the lagging material adopted is that high temperature silicon aluminate is cotton.Gas heat insulating layer 12/12 ' skin stacks lagging material, reduces gas heat insulating layer 12/12 ' and extraneous heat exchange, completes insulation effect.
This device adiabatic drying room 2 and adiabatic destructive distillation room 2 ' are provided with discharging top rotary table 26 and discharging lower rotary table 25.Gas distributor 14/14 ' is fixed on discharging top rotary table 26, is mainly cast iron or iron material matter, and it is made up of the cylindrical portions of bottom and the conical part on top, and the wall thickness of cylinder and the conical surface is 3-5mm.It is 23 ~ 36mm gas inlet that diameter is left in cylindrical portions side, bottom, communicates with high-temperature gas import 5/5 '; The axial direction due angle of the conical surface and gas distributor 14/14 ' is 36 °, and tapered portion has multilayer aperture, is uniformly distributed ringwise, aperture is 1 ~ 3mm, every layer of longitudinal difference of altitude in hole is 5 ~ 10mm, and the axis in hole is vertical with conic section, to ensure reactor center homogeneous temperature.
This device discharging lower rotary table 25 is connected with rotating shaft 9/9 ', mechanical sealing member 8/8 ' is adopted to seal between rotating shaft 9/9 ' and device, mechanical sealing member 8/8 ' is made up of stationary ring and rotating ring, stationary ring is fixed in adiabatic reactor base surface, be fixed on rotating shaft draw-in groove bottom rotating ring, contact with smooth metal face between stationary ring with rotating ring, and remain that stationary ring spring is in compressed state, ensure the sealed state of reactor.Rotating shaft 9/9 ' by the driven by motor of adjustable speed tuning, drives discharging lower rotary table 25 to rotate discharge and Interception process by a pair bevel gear drive.
This device discharging top rotary table 26 is in quiescing process all the time, and discharging top rotary table 26 and discharging lower rotary table 25 all have 3 to fan ring-like relief hole 28, and in adjustment, the relative position of lower rotary table completes closing of path and closes function.When both relief holes 28 align, material is discharged by relief hole 28, and form closure state when relief hole 28 staggers, coal charge is trapped in discharging top rotary table 26.Disk operation figure to be shown in accompanying drawing 3, figure that 1 ~ 7 is the schematic diagram of one-period disk operation, and in 1 and 7, relief hole is completely closed, and 2 ~ 6 relief holes are opened, and carry out discharge.Discharging top rotary table 26 installs three ∩ or ∧ shape plates additional between 3 annular relief holes 28 of fan, and shaped angles is more than 53 °, and three ∩ or ∧ shape plates make the coal charge between wall and gas distributor no longer accumulate.
The drying of this device, destructive distillation and insulation are all realized by heat-carrying gas, and high temperature heat-carrying gas and insulation gas are with pure N
2be main, or other gases.Carrier gas is divided into 2 tunnels and heats, and enters 15KW well heater respectively and 30KW well heater heats, and 15KW heater outlet connects adiabatic drying room 2,30KW heater outlet and connects adiabatic destructive distillation room 2 ', the high temperature N after heating
2the insulation gas feed 13/13 ' of difference access to plant and high-temperature gas import 5/5 '.Adiabatic drying room 2 and adiabatic destructive distillation room 2 ' tail gas are discharged from high-temperature gas outlet 3/3 ', and remove deentrainment dust through tornado dust collector and strainer, complete tar removal process by coal gas prolong and tar absorption tower, waste heat is reclaimed by interchanger.Insulation pneumatic outlet 10/10 ' is discharged rear section and is back to calorifier inlets, part emptying.
This device is for low-rank coal, and the high-temperature gas import 5 of adiabatic drying room 2 is 100 ~ 350 DEG C with the heat-carrying gas temperature that passes into of insulation gas feed 13; The high-temperature gas import 5 ' of adiabatic destructive distillation room and the heat-carrying gas temperature that passes into of insulation gas feed 13 ' are 100 ~ 750 DEG C.
Embodiment 2
This embodiment 2 is the embodiments of carrying out on the basis of embodiment 1, and professional and technical personnel can realize technical scheme of the present invention according to specific embodiment below.
As accompanying drawing 1, N
2600 DEG C are warming up to through 30kw well heater, pass into from the high-temperature gas import of adiabatic destructive distillation room and insulation gas feed, record adiabatic destructive distillation room air inlet temperature and central section temperature in time to such as accompanying drawing 6, can observe from accompanying drawing when not adding coal charge, basic heat waste model can be accepted encloses≤30 DEG C in, ensure that the insulation effect of device.
As accompanying drawing 1, be the brown coal of 1 ~ 5mm by 3kg granularity, rely on gravity, enter reaction unit by loading hopper, N
2be warmed up to about 300 DEG C through 15KW well heater, pass into gas heat insulating layer and adiabatic drying indoor respectively, the coal charge of preheating and dry adiabatic drying indoor, time of drying is about 20min; Then coal charge falls into chute by the relief hole on discharging rotating disk, controls coal charge enter adiabatic destructive distillation room by high-temperature ball valve; N
2be warming up to 600 DEG C through 30kw well heater, enter, and carry out thermal exchange with coal charge from the gas distributor bottom adiabatic destructive distillation room, through after a period of time, the temperature of coal charge rises and starts pyrolysis, discharges pyrolysis devolatilization thing, obtains semicoke.Tail gas is discharged from high-temperature gas outlet, and remove deentrainment dust through tornado dust collector and strainer, complete the removal process of tar by coal gas prolong and tar absorption tower, waste heat is reclaimed by interchanger.After treating that pyrolysis completes, semicoke falls into chute by the relief hole on discharging rotating disk, controls to enter burnt tank by high-temperature ball valve.Obtain the semicoke of 1.85kg, the tar of 0.095kg, the water of 0.35kg.
Along with the reaction times starts the temperature data in time recording adiabatic destructive distillation room air inlet temperature and adiabatic destructive distillation indoor, see accompanying drawing 7.
Embodiment 3
On the basis of embodiment 1, by changing the granularity of coal, observe its response situation.
Be the brown coal of 5 ~ 10mm by 3.0kg granularity, rely on gravity, enter reaction unit by loading hopper, N
2be warmed up to about 300 DEG C through 15KW well heater, pass into gas heat insulating layer and adiabatic drying indoor respectively, the coal charge of preheating and dry adiabatic drying indoor, time of drying is about 20min; Then coal charge falls into chute by the relief hole on discharging rotating disk, controls coal charge enter adiabatic destructive distillation room by high-temperature ball valve; N
2be warming up to 600 DEG C through 30kw well heater, enter, and carry out thermal exchange with coal charge from the gas distributor bottom adiabatic destructive distillation room, through after a period of time, the temperature of coal charge rises and starts pyrolysis, discharges pyrolysis devolatilization thing, obtains semicoke.Tail gas is discharged from high-temperature gas outlet, and remove deentrainment dust through tornado dust collector and strainer, complete the removal process of tar by coal gas prolong and tar absorption tower, waste heat is reclaimed by interchanger.After treating that pyrolysis completes, semicoke falls into chute by the relief hole on discharging rotating disk, controls to enter burnt tank by high-temperature ball valve.Obtain the semicoke of 2.1kg, the tar of 0.12kg, the water of 0.36kg.
Specific embodiments 4
On the basis of embodiment 1, by changing coal, changing inlet amount, changing time of drying, observe its response situation.
First, be the long-flame coal of 5 ~ 10mm by 2.5kg granularity, rely on gravity, enter reaction unit by loading hopper, N
2be warmed up to about 300 DEG C through 15KW well heater, pass into gas heat insulating layer and adiabatic drying indoor respectively, the coal charge of preheating and dry adiabatic drying indoor, time of drying is about 10min; Then coal charge falls into chute by the relief hole on discharging rotating disk, controls coal charge enter adiabatic destructive distillation room by high-temperature ball valve; N
2be warming up to 600 DEG C through 30kw well heater, enter, and carry out thermal exchange with coal charge from the gas distributor bottom adiabatic destructive distillation room, through after a period of time, the temperature of coal charge rises and starts pyrolysis, discharges pyrolysis devolatilization thing, obtains semicoke.Tail gas is discharged from high-temperature gas outlet, and remove deentrainment dust through tornado dust collector and strainer, complete the removal process of tar by coal gas prolong and tar absorption tower, waste heat is reclaimed by interchanger.After treating that pyrolysis completes, semicoke falls into chute by the relief hole on discharging rotating disk, controls to enter burnt tank by high-temperature ball valve.Obtain the semicoke of 1.93kg, the tar of 0.113kg, the water of 0.15kg.
Drawn the temperature distribution contrast in time at adiabatic destructive distillation room air inlet temperature and center, adiabatic destructive distillation room by accompanying drawing 6, embody excellent adiabatic heat insulating effect.
Claims (10)
1. the adiabatic pyrolysis installation of low-rank coal, comprise loading hopper, adiabatic drying room, adiabatic destructive distillation room, coke quenching tank be communicated with formation successively, it is characterized in that: described adiabatic drying room (2) is identical with the diameter of adiabatic destructive distillation room (2 '), be respectively arranged with the gas heat insulating floor (12/12 ') identical with adiabatic destructive distillation room (2 ') temperature with adiabatic drying room (2) in periphery, the periphery of gas heat insulating layer (12/12 ') is provided with external thermal insulation (11/11 ').
2. the adiabatic pyrolysis installation of low-rank coal as claimed in claim 1, is characterized in that: the diameter of described adiabatic drying room (2) and adiabatic destructive distillation room (2 ') is 149:261 with the diameter ratio of gas heat insulating floor (12/12 ') respectively.
3. the adiabatic pyrolysis installation of low-rank coal as claimed in claim 1, is characterized in that: the diameter of described adiabatic drying room (2) and adiabatic destructive distillation room (2 ') is 149:500 with the diameter ratio of external thermal insulation (11/11 ') respectively.
4. the adiabatic pyrolysis installation of low-rank coal as claimed in claim 1, is characterized in that: described adiabatic drying room (2) is that cylinder upper surface is communicated with round platform with the structure of adiabatic destructive distillation room (2 '), and the angle of described round platform is 55 ~ 60 °.
5. the adiabatic pyrolysis installation of low-rank coal as claimed in claim 4, is characterized in that: the aspect ratio of described cylinder and round platform is 6:1 ~ 7:1.
6. the adiabatic pyrolysis installation of low-rank coal as claimed in claim 1, is characterized in that: described adiabatic drying room (2) is respectively arranged with discharging lower rotary table (25) and discharging top rotary table (26) with adiabatic destructive distillation room (2 ') bottom;
Described discharging top rotary table (26) is provided with gas distributor (14/14 '), the discharging top rotary table (26) of gas distributor (14/14 ') periphery is provided with the annular relief hole of upper fan (28); Described gas distributor (14/14 ') is made up of top conical part and bottom cylindrical portions; Described top cone surface is equipped with the aperture being less than coal charge granularity, and cylinder side, bottom is provided with gas inlet (27) and is communicated with high-temperature gas import (5/5 ');
Described discharging lower rotary table (25) offers upper corresponding lower fan annular relief hole (28) with discharging top rotary table (26), and rotates discharge by conical gear by driven by motor at the upper connection rotating shaft (9/9 ') of discharging lower rotary table (25).
7. the adiabatic pyrolysis installation of low-rank coal as claimed in claim 6, is characterized in that: the conical surface of described top cone and the axial angle of gas distributor (14/14 ') are 36 ~ 45 °.
8. adiabatic pyrolysis installation as claimed in claim 6, is characterized in that: be provided with ∩ or ∧ type structure between the annular relief hole of described upper fan (28).
9. the adiabatic pyrolysis installation of low-rank coal as claimed in claim 1, is characterized in that: the high-temperature gas import (5) of described adiabatic drying room (2) is 100 ~ 350 DEG C with the heat-carrying gas temperature that passes into of insulation gas feed (13).
10. the adiabatic pyrolysis installation of low-rank coal as claimed in claim 1, is characterized in that: the high-temperature gas import (5 ') of described adiabatic destructive distillation room (2 ') is 100 ~ 750 DEG C with the heat-carrying gas temperature that passes into of insulation gas feed (13 ').
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510017987.2A CN104610990B (en) | 2015-01-14 | 2015-01-14 | Low-rank coal adiabatic pyrolysis device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510017987.2A CN104610990B (en) | 2015-01-14 | 2015-01-14 | Low-rank coal adiabatic pyrolysis device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104610990A true CN104610990A (en) | 2015-05-13 |
| CN104610990B CN104610990B (en) | 2017-02-01 |
Family
ID=53145644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510017987.2A Expired - Fee Related CN104610990B (en) | 2015-01-14 | 2015-01-14 | Low-rank coal adiabatic pyrolysis device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104610990B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106753493A (en) * | 2017-03-03 | 2017-05-31 | 曹淅 | A kind of low-order coal thermal insulation pyrolysis installation |
| CN108659864A (en) * | 2018-05-18 | 2018-10-16 | 安徽省司尔特肥业股份有限公司 | A kind of charcoal based compound fertilizer production biomass carbonizing furnace |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201258312Y (en) * | 2008-06-06 | 2009-06-17 | 曹祖斌 | Interior heat type multiple layer gas distribution carbonization furnace |
| CN101691493A (en) * | 2009-09-15 | 2010-04-07 | 北京国电富通科技发展有限责任公司 | External combustion internally heated coal carbonization furnace |
| CN101935534A (en) * | 2010-09-04 | 2011-01-05 | 太原理工大学 | Low-order coal dry distillation device |
| US20130062186A1 (en) * | 2011-09-13 | 2013-03-14 | Franklin G. Rinker | Process for treating coal using multiple dual zone steps |
| CN103205267A (en) * | 2013-04-18 | 2013-07-17 | 陕西煤业化工技术研究院有限责任公司 | Medium and low temperature distillation furnace of coal, distillation device based on distillation furnace, and distillation method |
| CN103409152A (en) * | 2013-07-26 | 2013-11-27 | 中国五环工程有限公司 | Technology and system for upgrading low-rank coal through high-heating-value gas heat carrier |
-
2015
- 2015-01-14 CN CN201510017987.2A patent/CN104610990B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201258312Y (en) * | 2008-06-06 | 2009-06-17 | 曹祖斌 | Interior heat type multiple layer gas distribution carbonization furnace |
| CN101691493A (en) * | 2009-09-15 | 2010-04-07 | 北京国电富通科技发展有限责任公司 | External combustion internally heated coal carbonization furnace |
| CN101935534A (en) * | 2010-09-04 | 2011-01-05 | 太原理工大学 | Low-order coal dry distillation device |
| US20130062186A1 (en) * | 2011-09-13 | 2013-03-14 | Franklin G. Rinker | Process for treating coal using multiple dual zone steps |
| CN103205267A (en) * | 2013-04-18 | 2013-07-17 | 陕西煤业化工技术研究院有限责任公司 | Medium and low temperature distillation furnace of coal, distillation device based on distillation furnace, and distillation method |
| CN103409152A (en) * | 2013-07-26 | 2013-11-27 | 中国五环工程有限公司 | Technology and system for upgrading low-rank coal through high-heating-value gas heat carrier |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106753493A (en) * | 2017-03-03 | 2017-05-31 | 曹淅 | A kind of low-order coal thermal insulation pyrolysis installation |
| CN108659864A (en) * | 2018-05-18 | 2018-10-16 | 安徽省司尔特肥业股份有限公司 | A kind of charcoal based compound fertilizer production biomass carbonizing furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104610990B (en) | 2017-02-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104946279B (en) | Swinging heat stepwise biomass continuous pyrolysis equipment | |
| CN103409155B (en) | Multi-tube rotary furnace and method for performing low-temperature carbonization on materials by using multi-tube rotary furnace | |
| CN201259367Y (en) | Completely atmosphere controlled fully closed continuous revolving furnace | |
| CN104477885B (en) | A kind of vertical sense of continuity answers high temperature graphitization stove | |
| CN106430191A (en) | Active carbon activation furnace and active carbon production method | |
| CN202403498U (en) | Carbon material drying machine | |
| CN206069777U (en) | A kind of low order low-temperature pyrolysis of coal horizontal revolving kiln | |
| CN105154118B (en) | A kind of swinging heats low-order coal modification upgrading device indirectly | |
| CN204174158U (en) | A kind of external-heat low-temperature pyrolysis stove | |
| CN102757800B (en) | Low-temperature dry distillation equipment and method for low-rank coal and oil shale | |
| CN101792676A (en) | Movable slide bed tunnel type coke oven and use method thereof | |
| CN106753488A (en) | Material heater | |
| CN104293365A (en) | Biomass poly-generation equipment and method of integral pyrolysis-flue gas combined cycle | |
| CN103409154B (en) | Composite external heating type dry distillation machine | |
| CN107022363A (en) | A kind of continuous biomass pyrolysis gas is reversely flowd back towards with charcoal gas cogeneration facility | |
| CN109761237A (en) | A kind of efficient inside and outside dual-heating mode revolution retort | |
| CN202415436U (en) | External heating rotary retorting furnace for producing semi coke | |
| CN104694138B (en) | A kind of mixed heating equipment and its application | |
| CN104610990B (en) | Low-rank coal adiabatic pyrolysis device | |
| CN205170752U (en) | Outer hot type dry distillation device | |
| CN106190207B (en) | A kind of large size pyrolysis installation | |
| CN2915863Y (en) | Low temperature carbonization device for high volatile ingredient weakly caking coal | |
| CN204097405U (en) | A kind of rotating bed pyrolysis oven for improving material destructive distillation ability | |
| CN104531195B (en) | A kind of external-heat oil shale distillation process | |
| CN106281381A (en) | Rotatable radiation bed |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170201 Termination date: 20200114 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |