CN106281372A - A kind of pyrolysis reactor utilizing solid thermal carriers and continuous pyrolysis method - Google Patents
A kind of pyrolysis reactor utilizing solid thermal carriers and continuous pyrolysis method Download PDFInfo
- Publication number
- CN106281372A CN106281372A CN201610677032.4A CN201610677032A CN106281372A CN 106281372 A CN106281372 A CN 106281372A CN 201610677032 A CN201610677032 A CN 201610677032A CN 106281372 A CN106281372 A CN 106281372A
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- CN
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- Prior art keywords
- pyrolysis reactor
- pyrolysis
- solid thermal
- inlet pipe
- thermal carriers
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Classifications
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- 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
- C10B49/16—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 moving solid heat-carriers in divided form
-
- 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
- C10B57/18—Modifying the properties of the distillation gases in the oven
Abstract
A kind of pyrolysis reactor utilizing solid thermal carriers and continuous pyrolysis method, including feed system, discharge system, gas handling system and pyrolysis reactor main body；Wherein, described pyrolysis reactor main part is made up of pyrolysis reactor housing, sieve plate, division board, cyclone separator；Described feed system is made up of material inlet pipe, heat carrier inlet pipe；Described discharge system is made up of discharging control valve and discharge nozzle；Described gas handling system is made up of loosening device and gas coutrol valve；The advantages such as the pyrolysis reactor of the present invention and continuous pyrolysis method are to utilize solid thermal carriers as thermal source in order to be pyrolyzed material, and in pyrolysis reactor, material is sufficiently mixed with heat carrier, and thickness of feed layer is controlled, has simple in construction, and pyrolysis gas dustiness is few.
Description
Technical field
The present invention relates to coal, biomass produce pyrolysis gas, tar and thermoelectricity field, utilize solid thermal to carry particularly to one
The pyrolysis reactor of body and continuous pyrolysis method.
Background technology
The technique of coal, biomass pyrolytic is a kind of important energy conversion method by the sensible heat utilizing solid thermal carriers, tool
Having heat transfer rate fast, the thermal efficiency is high, the advantage being heated evenly.
Along with the development of Technology of Circulating Fluidized Bed Boiler, the technique utilizing boiler cycling hot ash to carry out being pyrolyzed comes into one's own,
Coal is pyrolyzed by the heat ash of CFBB as heat carrier, separates out pyrolysis gas and tar, pyrolysis char and circulating ash
Return CFBB to carry out burning for generating and heat supply, it is achieved oil gas, the production of thermoelectricity.Real process is pyrolyzed
The phenomenon that fine ash is taken out of by gas from reactor is serious, causes tar dust content high, and subsequent treatment difficulty also can block heat time serious
Solve the pipeline of gas output system so that system cannot continuous and steady operation.Up to now, how will pyrolysis coal gas carry
Small grain size solid thermal carriers are separated and are not well solved, as used cyclone separator, surface filter, electrostatic precipitation
Device, the most fundamentally solves the problem of band ash in oil.Additionally, after the coal-tar middle oil condensation of coal gas, easily cohere at heat exchanger tube
On wall, heat transfer effect will be reduced in a short time and block, it will the system that directly affects is run.
There are the following problems for traditional handicraft:
1) dustiness big (depending on pyrolytic process) in pyrolysis gas, be attached on tar after cooling together with, easily block pipe
Road also increases tar processing.
2) in fluidized bed pyrolysis reactor, fluidizing gas is mixed in pyrolysis gas, reduces pyrolysis gas calorific value, adds gas
Subsequent treatment amount.
The patent documentation of Publication No. CN101818071A discloses a kind of pyrolysis of coal reactor, is provided with in its pyrolysis apparatus
For importing the pipeline structure of high-temperature particle medium, coal is imported pyrolysis reactor by mother tube, after structure preheating by the road, at pipe
The outlet of line structure mixes with high-temperature medium, and which makes the volatile matter in coal easily be attached on and set in warm separates out
Cause pipeline system complex in pipeline blockage, and pyrolysis reactor on Bei, give to run and bring difficulty with service work.
The patent documentation of Publication No. CN103031135A discloses a kind of fluidized bed classification pyrolysis of coal reactor and coal heat
Solution method, it utilizes circulating ash to carry out pyrolysis of coal, and pyrolysis chamber includes low temperature pyrogenation room and high temperature pyrolysis room, it is achieved low temperature pyrogenation coal
In gas, the secondary pyrolysis of tar light oil, adds gas yield, and which pyrolysis reactor uses fluid bed, gas in reactor
The pyrolysis reactor flow velocitys such as velocity ratio moving bed are big, and in fluidized-bed reactor, gas dust content is high.
Summary of the invention
It is an object of the invention to provide a kind of dustiness that can reduce in pyrolysis product, raising equipment runs energy continuously
The pyrolysis reactor utilizing solid thermal carriers of power and continuous pyrolysis method.
For reaching above-mentioned purpose, what the pyrolysis reactor of the present invention included being connected with CFBB counter expects device,
A part of cycling hot ash returns the burner hearth of CFBB through anti-material device, another part cycling hot ash through anti-material device with
The heat carrier inlet pipe of the pyrolysis reactor being obliquely installed is connected, and is provided with material on the pyrolysis reactor of heat carrier inlet pipe upper end
Inlet pipe, is provided with sieve plate in pyrolysis reactor between material inlet pipe and heat carrier inlet pipe, is positioned at heat in pyrolysis reactor
Carrier inlet pipe lower end is disposed with division board and cyclone separator, and the bottom of pyrolysis reactor is additionally provided with and recirculating fluidized bed
The discharge nozzle that the burner hearth of boiler is connected.
Several loosening devices being connected by gas coutrol valve it are further opened with source of the gas on described pyrolysis reactor.
The thickness of feed layer of the described material in pyrolysis reactor and heat carrier mixing is higher than edge under division board.
It is also equipped with controlling the discharging control valve of thickness of feed layer on described discharge nozzle.
The lower end being positioned at cyclone separator in described pyrolysis reactor is also equipped with the low temperature vapour with boiler steam and water circuit
Aqueous phase heat exchanger even.
The inclination angle of described pyrolysis reactor is 30～60 °.
Described sieve plate uses heat resisting steel or castable to make.
A kind of continuous pyrolysis method of pyrolysis reactor utilizing solid thermal carriers, comprises the following steps:
1) material is fed pyrolysis reactor by material inlet pipe, and partial material falls into sieve plate, and remaining drops to pyrolysis reactor
Bottom；
2) the cycling hot ash of solid thermal carriers that is 600～1000 DEG C is fed pyrolysis reactor by heat carrier inlet pipe, falls
The Cheng Zhongyu material contact heat transfer by sieve plate, falls into bottom pyrolysis reactor, and mixed material issues 500～900 DEG C of conditions
Raw pyrolytic reaction, mixed material is filled with pyrolysis reactor bottom, and thickness of feed layer is higher than edge under division board, thus has intercepted material
The airborne dust taken up in dropping process；
3) pyrolysis reactor is obliquely installed mixed material under the effect of self gravitation and bottom loosening device, to discharging opening
Mobile, material and heat carrier after pyrolysis are discharged pyrolysis reactor by discharge nozzle, and in pyrolysis reactor, inventory is by discharging control
Valve regulation；
4) temperature that pyrolysis the produces pyrolysis gas higher than 500 DEG C enters cyclone separator, and the fine powder separated returns
In bottoms material, the gas of separation discharges pyrolysis reactor.
Described heat exchanger entrance end is connected with the low temperature soda pop of boiler steam and water circuit, heat exchanger absorption cycle ash and pyrolysis
The heat of gas, the high temperature soda pop of generation accesses the boiler circuit of CFBB.
Beneficial effects of the present invention:
1) present invention utilizes sieve plate to realize the mixing of material and heat carrier.
2) present invention utilizes division board to intercept material fall area and gas elevated areas, decreases what pyrolysis gas carried
Airborne dust content.
3) present invention utilizes pyrolysis reactor self inclination angle to realize continuous feeding and discharging, prevents accumulation and the delay of material.
4) present invention utilizes the cyclone separator within pyrolysis reactor to carry out gas purification, it is to avoid the low temperature analysis of tar
Go out, thus ensure the stable operation of equipment.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of coupling cycle fluidized-bed combustion boiler of the present invention.
Fig. 2 is the schematic diagram inside the present invention with heat exchanger
Wherein: 1-heat carrier inlet pipe, 2-material inlet pipe, 3-sieve plate, 4-division board, 5-cyclone separator, 6-pyrolytic reaction
Device, 7-discharging control valve, 8-discharge nozzle, 9-loosening device, 10-gas coutrol valve, 11-CFBB, 12-returning charge fills
Put, 13-coal bunker, 14-heat exchanger.
Embodiment 1: see Fig. 1, the present invention includes the anti-material device 12 being connected with CFBB 11, and a part is followed
Ring heat ash warp anti-material device 12 returns the burner hearth of CFBB 11, and another part cycling hot ash is expected device 12 through anti-and inclined
Oblique angle is that the heat carrier inlet pipe 1 of the pyrolysis reactor 6 of 30～60 ° is connected, on the pyrolysis reactor 6 of heat carrier inlet pipe 1 upper end
It is provided with the material inlet pipe 2 being connected with coal bunker 13, sets between material inlet pipe 2 and heat carrier inlet pipe 1 in pyrolysis reactor 6
It is equipped with the sieve plate 3 using heat resisting steel or castable to make, is positioned at heat carrier inlet pipe 1 lower end in pyrolysis reactor 6 and is disposed with
Division board 4 and cyclone separator 5, material and the thickness of feed layer of heat carrier mixing in pyrolysis reactor 6 are higher than division board 4 times
Edge, intercepts the airborne dust taken up in material and heat carrier whereabouts and enters pyrolysis gas elevated areas, thus reduce pyrolysis on source
The dustiness of product；The bottom of pyrolysis reactor 6 be additionally provided with that the burner hearth with CFBB 11 is connected with control
The discharge nozzle 8 of the discharging control valve 7 of thickness of feed layer, is further opened with several by gas coutrol valve 10 on pyrolysis reactor 6
The loosening device 9 being connected with source of the gas.
The continuous pyrolysis method of the present invention comprises the following steps:
1) material is fed pyrolysis reactor 6 by material inlet pipe 2, and partial material is fallen into sieve plate 3 and dropped from sieve aperture, and remaining falls
To pyrolysis reactor 6 bottom；
2) the cycling hot ash of solid thermal carriers that is 600～1000 DEG C is fed pyrolysis reactor 6 by heat carrier inlet pipe 1, falls
During with by the material contact heat transfer of sieve plate 3, fall into bottom pyrolysis reactor 6, mixed material is 500～900 DEG C of conditions
Issuing raw pyrolytic reaction, mixed material is filled with pyrolysis reactor 6 bottom, and thickness of feed layer is higher than 4 times edges of division board, thus intercepts
The airborne dust taken up in material dropping process；
3) pyrolysis reactor 6 is obliquely installed mixed material under the effect of self gravitation and bottom loosening device 9, to discharging
Mouth is mobile, and material and heat carrier after pyrolysis are discharged pyrolysis reactor 6 by discharge nozzle 8, and in pyrolysis reactor, inventory is by discharging
Control valve 7 regulates；
4) temperature that pyrolysis produces enters cyclone separator 5 higher than 500 DEG C of pyrolysis gas, it is to avoid pyrolysis gas is coal-tar middle oil
Condensation blocking pipeline, the fine powder separated returns in bottoms material, and the gas of separation discharges pyrolysis reactor.
The discharging control valve of the present invention uses mechanical valve or pneumatic operated valve, the material of mixed material in regulating pyrolysis reactor
Layer thickness.Meanwhile, material prevents solid accumulation by the loosening device bottom pyrolysis reactor.
Embodiment 2, sees Fig. 2, and the present embodiment is positioned at the lower end of cyclone separator 5 in pyrolysis reactor 6 and is also equipped with
Heat exchanger 14, heat exchanger 14 arrival end is connected with the low temperature soda pop of boiler steam and water circuit, heat exchanger 14 absorption cycle ash and pyrolysis
The heat of gas, the boiler circuit of the high temperature soda pop access CFBB 11 of generation, other are with embodiment 1.
Claims (9)
1. the pyrolysis reactor utilizing solid thermal carriers, it is characterised in that: include being connected with CFBB (11)
Counter expect device (12), a part of cycling hot ash through the anti-burner hearth expecting that device (12) returns CFBB (11), another
Part cycling hot ash is connected through the heat carrier inlet pipe (1) of the anti-pyrolysis reactor (6) expecting device (12) and be obliquely installed, and carries in heat
It is provided with material inlet pipe (2) on the pyrolysis reactor (6) of body inlet pipe (1) upper end, in pyrolysis reactor (6), is positioned at material inlet pipe
(2) and between heat carrier inlet pipe (1), be provided with sieve plate (3), heat carrier inlet pipe (1) lower end it is positioned in pyrolysis reactor (6) successively
Being provided with division board (4) and cyclone separator (5), the bottom of pyrolysis reactor (6) is additionally provided with and CFBB
(11) discharge nozzle (8) that burner hearth is connected.
The pyrolysis reactor utilizing solid thermal carriers the most according to claim 1, it is characterised in that: described pyrolytic reaction
Several loosening devices (9) being connected by gas coutrol valve (10) it are further opened with source of the gas on device (6).
The pyrolysis reactor utilizing solid thermal carriers the most according to claim 1, it is characterised in that: described pyrolytic reaction
Material and the thickness of feed layer of heat carrier mixing in device (6) are higher than edge under division board (4).
The pyrolysis reactor utilizing solid thermal carriers the most according to claim 1, it is characterised in that: described discharge nozzle
(8) it is also equipped with controlling the discharging control valve (7) of thickness of feed layer on.
The pyrolysis reactor utilizing solid thermal carriers the most according to claim 1, it is characterised in that: described pyrolytic reaction
The lower end being positioned at cyclone separator (5) in device (6) is also equipped with the heat exchanger that the low temperature soda pop with boiler steam and water circuit is connected
(14)。
The pyrolysis reactor utilizing solid thermal carriers the most according to claim 1, it is characterised in that: described pyrolytic reaction
The inclination angle of device (6) is 30～60 °.
The pyrolysis reactor utilizing solid thermal carriers the most according to claim 1, it is characterised in that: described sieve plate (3)
Heat resisting steel or castable is used to make.
8. the continuous pyrolysis method of the pyrolysis reactor utilizing solid thermal carriers, it is characterised in that comprise the following steps:
1) material is fed pyrolysis reactor (6) by material inlet pipe (2), and partial material falls into sieve plate (3), and it is anti-that remaining drops to pyrolysis
Answer device (6) bottom；
2) the cycling hot ash of solid thermal carriers that is 600～1000 DEG C is fed pyrolysis reactor (6) by heat carrier inlet pipe (1), falls
During with by the material contact heat transfer of sieve plate (3), fall into pyrolysis reactor (6) bottom, mixed material is at 500～900 DEG C
Under the conditions of there is pyrolytic reaction, mixed material is filled with pyrolysis reactor (6) bottom, thickness of feed layer higher than edge under division board (4),
Thus intercepted the airborne dust taken up in material dropping process；
3) pyrolysis reactor (6) is obliquely installed mixed material under the effect of self gravitation and bottom loosening device (9), to discharging
Mouthful mobile, material and heat carrier after pyrolysis are discharged pyrolysis reactor (6) by discharge nozzle (8), in pyrolysis reactor inventory by
Discharging control valve (7) regulates；
4) temperature that pyrolysis the produces pyrolysis gas higher than 500 DEG C enters cyclone separator, bottom the fine powder separated return
In material, the gas of separation discharges pyrolysis reactor.
9. utilizing a continuous pyrolysis method for the pyrolysis reactor of solid thermal carriers as claimed in claim 8, its feature exists
In: described heat exchanger (14) arrival end is connected with the low temperature soda pop of boiler steam and water circuit, heat exchanger (14) absorption cycle ash and
The heat of pyrolysis gas, the high temperature soda pop of generation accesses the boiler circuit of CFBB (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610677032.4A CN106281372B (en) | 2016-08-16 | 2016-08-16 | Pyrolysis reactor utilizing solid heat carrier and continuous pyrolysis method |
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| CN201610677032.4A CN106281372B (en) | 2016-08-16 | 2016-08-16 | Pyrolysis reactor utilizing solid heat carrier and continuous pyrolysis method |
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| CN106281372A true CN106281372A (en) | 2017-01-04 |
| CN106281372B CN106281372B (en) | 2022-01-14 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106753505A (en) * | 2017-01-18 | 2017-05-31 | 武汉大学 | A kind of tilting biomass through pyrolysis reaction unit |
| CN106753482A (en) * | 2017-01-18 | 2017-05-31 | 武汉大学 | A kind of biomass pyrolytic catalytic cracking preparing aromatic hydrocarbon integrated reacting device and application method |
| CN110938448A (en) * | 2019-12-03 | 2020-03-31 | 新奥生物质能(天津)有限公司 | Control method and device of biomass pyrolysis device |
| WO2022188369A1 (en) * | 2021-03-09 | 2022-09-15 | 中国华能集团清洁能源技术研究院有限公司 | Waste wind turbine blade pyrolysis recovery system and working method therefor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106753505A (en) * | 2017-01-18 | 2017-05-31 | 武汉大学 | A kind of tilting biomass through pyrolysis reaction unit |
| CN106753482A (en) * | 2017-01-18 | 2017-05-31 | 武汉大学 | A kind of biomass pyrolytic catalytic cracking preparing aromatic hydrocarbon integrated reacting device and application method |
| CN106753482B (en) * | 2017-01-18 | 2019-09-10 | 武汉大学 | A kind of biomass pyrolytic-catalytic cracking preparing aromatic hydrocarbon integrated reacting device and application method |
| CN110938448A (en) * | 2019-12-03 | 2020-03-31 | 新奥生物质能(天津)有限公司 | Control method and device of biomass pyrolysis device |
| WO2022188369A1 (en) * | 2021-03-09 | 2022-09-15 | 中国华能集团清洁能源技术研究院有限公司 | Waste wind turbine blade pyrolysis recovery system and working method therefor |
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| CN106281372B (en) | 2022-01-14 |
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