CN205710588U - Pyrolysis of coal reactor and CFBB combined system - Google Patents
Pyrolysis of coal reactor and CFBB combined system Download PDFInfo
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- CN205710588U CN205710588U CN201620589413.2U CN201620589413U CN205710588U CN 205710588 U CN205710588 U CN 205710588U CN 201620589413 U CN201620589413 U CN 201620589413U CN 205710588 U CN205710588 U CN 205710588U
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- pyrolysis
- coal
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- oil gas
- coal reactor
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Abstract
The open a kind of pyrolysis of coal reactor of this utility model and CFBB combined system.This system includes pyrolysis of coal reactor and CFBB, and the semicoke outlet of described pyrolysis of coal reactor is connected with the semicoke entrance of described CFBB.This utility model is in the built-in granular bed dedusting of reactor body top, enter stove pyrolyzing coal and be partially into granular bed, pyrolysis oil gas effectively reduces the dustiness in pyrolysis gas through granular bed, reduces pyrolysis of coal oil gas temperature by dust pelletizing system simultaneously, reduces heavy tar yield.The hot CFBB that is delivered to of semicoke produced directly burns, and can be effectively utilized the sensible heat that pyrolysis char is self-contained, improve generating efficiency.
Description
Technical field
This utility model belongs to coal sublevel cascade utilization technical field, particularly relates to for low in jet coal, brown coal etc.
A kind of pyrolysis of coal reactor of rank fine coal and CFBB combined system.
Background technology
Along with liquid fuel, gaseous fuel and industrial chemicals the stepping up, with coal of proportion in total energy consumption
Chemical industry convert and ensure that the energy development route of the degree of self-sufficiency achieves the most progressive in critical energy field.Pyrolysis of coal is a class
The weak endothermic reaction, the energy expenditure of reaction itself just corresponds to the 3-5% of raw material calorific value.In anoxybiotic working condition, the increasing of temperature
Adding and the macromole of coal will be caused progressively to deconstruct, by hydrogen migration, dehydrogenation and condensation reaction, aromatic core Step Condensation, from monocycle virtue
Hydrocarbon-condensed-nuclei aromatics-polycyclic aromatic hydrocarbon-semicoke, until coke.The pyrolytic process of coal can generally form combustible gas, tar and half
Three class output objects such as burnt (or coke).
The semicoke produced after pyrolysis of coal can be as fuel combustion.Existing system is all to take more complicated solid or gas
Body is as the pyrolysis of coal plug technique of heat carrier.Such as existing a kind of furnace front coal head-drawing method, this process themiolysis system takes combustion
The heat ash that burning system is come, as carrier, relates to burning and the fluidisation of carrier, and technique is cumbersome, system complex, and cost is high.At present
In using semicoke as the technique of heat carrier, technological process include semicoke heating, promote, separate, the technique such as mixing, cause system
Flow process increases, and substantially increases system failure rate.
The pyrolysis oil gas that pyrolysis of coal produces, complicated component, heavy tar components are many, and dust content is big, dust shape is not advised
Then, follow-up pyrolysis oil gas processing system just available combustible gas and the high-quality tar that complexity is set is needed.Pyrolytic process is removed
Dirt technology has become one of low-order coal pyrolysis course of industrialization urgent problem.
Utility model content
In order to solve the problems referred to above, this utility model provides a kind of pyrolysis of coal reactor to be combined system with CFBB
System, takes heat accumulating type descending-bed reactor, it is only necessary to the hot CFBB that is delivered to of semicoke produced directly is burnt,
The sensible heat that pyrolysis char is self-contained can be effectively utilized, produce combustible gas and high added value tar, it is achieved coal plug simultaneously
Economic benefit.
Coal plug, it is intended to normal pressure, middle low temperature, without catalyst and hydrogen under conditions of, extract coal by the mode of mild pyrolysis
In gas, liquid fuel and fine chemicals, and technique desulphurization denitration whereby, thus realize oil, coal air and heat, electricity multi-joint
Produce.
One of the purpose of this utility model provides a kind of pyrolysis of coal reactor and CFBB combined system, and this is
System includes pyrolysis of coal reactor and CFBB,
Described pyrolysis of coal reactor includes: reactor body and granular bed, and described granular bed includes: side
Plate, two wallboards being fixed on the sidewall of described reactor body and telescopic valve, the most described side panel, described two
Individual wallboard and described sidewall surround the cavity of upper shed, and described side panel is porous plate, and described valve is positioned at described granule and moves
The bottom of bed, the sidewall between the fixed position of described wallboard is provided with pyrolysis oil gas vent；
The semicoke outlet of described pyrolysis of coal reactor is connected with the semicoke entrance of described CFBB.
In this utility model, described valve is plate body, having of the sidewall between the fixed position of described wallboard
Elongated hole, described valve is telescopic is installed on described elongated hole, and described valve is as the end of granular bed.
In this utility model, described granular bed farther includes filter plate, and described filter plate is porous plate, described filter plate cloth
Put between said two wallboard and relative with described pyrolysis oil gas vent, thus described filter plate, said two wallboard and
Air chamber is limited between sidewall between the fixed position of described wallboard.Pyrolysis oil gas is entered air chamber by the cavity of granular bed
Time, all participation work of filter plate, it is to avoid filter plate, because of the partial ventilation of only corresponding pyrolysis oil gas vent, uses that frequency is excessive to be made
The pore becoming this part to be distributed is blocked by tar too early and scraps, and extends the service life of filter plate, reduces shut-down and changes filter
The frequency of plate, improves production efficiency.
Another kind of scheme, described granular bed farther includes filter plate, and described filter plate is arranged on described pyrolysis oil gas and goes out
At Kou, described filter plate is porous plate.In general, the pyrolysis oil gas vent of reactor is with one section of pipe joint, conveniently with transmission
The pipeline of gas connects, and filter plate of the present utility model is arranged in the pipe joint of pyrolysis oil gas vent, it is possible to reduce filter plate, dividing plate
Material consumption.
Pyrolysis of coal reactor of the present utility model and CFBB combined system farther include to be pyrolyzed at oil gas
Reason system；
Described pyrolysis oil gas processing system is connected with the pyrolysis oil gas vent of described pyrolysis of coal reactor.
In this utility model, described pyrolysis oil gas processing system includes: Separate System of Water-jet, pyrolysis gas cleaning system, burnt
Oil refining system；
The pyrolysis oil gas vent of described pyrolysis of coal reactor is connected with described Separate System of Water-jet, described Separate System of Water-jet
Gas outlet be connected with described pyrolysis gas cleaning system, the liquid outlet of described Separate System of Water-jet and described tar refining system
System connects.
In this utility model, described pyrolysis gas cleaning system has and is connected to the combustible gas of described pyrolysis of coal reactor and goes out
Mouthful.
This utility model uses heat accumulating type descending-bed reactor as pyrolysis of coal reactor.Built-in of reactor body top
Grain moving bed dedusting, enters stove pyrolyzing coal and is partially into granular bed, and pyrolysis oil gas effectively reduces heat through granular bed
Dustiness in venting one's spleen, reduces follow-up tar pretreated cost, reduces pyrolysis of coal oil gas temperature by dust pelletizing system simultaneously,
Make part heavy tar condense, reduce heavy tar yield.The semicoke that produces is hot, and to be delivered to CFBB direct
Burning, can be effectively utilized the sensible heat that pyrolysis char is self-contained, improve generating efficiency.
For the ease of describing, in this article, term " coal fast pyrolysis reactor ", " heat accumulating type descending-bed reactor ", " heat
Solve stove " it is used interchangeably.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model pyrolysis of coal reactor and CFBB combined system；
Fig. 2 is the flow process that this utility model practicality pyrolysis of coal reactor and CFBB combined system process coal
Figure.
Detailed description of the invention
Below in conjunction with drawings and Examples, detailed description of the invention of the present utility model is described in more details, with
Just the advantage that better understood when scheme of the present utility model and various aspects thereof.But, specific implementations described below side
Formula and embodiment are only descriptive purposes rather than to restriction of the present utility model.
This utility model embodiment discloses pyrolysis of coal reactor and CFBB combined system, is used for processing low
Rank coal.As it is shown in figure 1, system includes pyrolysis of coal reactor 100, CFBB 200 and pyrolysis oil gas processing system
300.There is pyrolytic reaction in raw material (low-order coal) in pyrolysis of coal reactor 100, produces pyrolysis char and pyrolysis oil gas.Pyrolysis half
The burnt CFBB 200 that enters burns.Pyrolysis oil gas entrance pyrolysis oil gas processing system 300 carries out subsequent treatment and obtains
To combustible gas and tar.
Pyrolysis of coal reactor 100 is heat accumulating type descending-bed reactor, including: reactor body, heat accumulation type radiant tube, granule
Moving bed.
Reactor body is pyrolytic reaction container.Feed(raw material)inlet is offered at the top of pyrolytic reaction container, arranges on sidewall
There is pyrolysis oil gas vent.
Heat accumulation type radiant tube is arranged in reactor body, and heat accumulation type radiant tube is along the short transverse multilamellar of reactor body
Arrange, arrange many heat accumulation type radiant tubes the most parallel to each other for every layer.Owing to using multilamellar heat accumulation type radiant tube to supply
Heat, response system simple in construction, easy to operate, heats is good, uniformity of temperature profile.Every layer of heat accumulation type radiant tube with adjacent on
The heat accumulation type radiant tube of lower two-layer short transverse parallel to each other and along reactor body is interspersed.Thus, it is remarkably improved
The pyrolysis efficiency of reactor, thus improve the output capacity of product.
Granular bed is fixed on the sidewall of pyrolytic reaction vessel, and is covered by pyrolysis oil gas vent, and this practicality is new
Covering described in type, refers to that pyrolysis oil gas vent is isolated by granular bed with reactor inner chamber.Pyrolysis oil gas moves through granule
After bed dedusting, pyrolysis oil gas vent this is external to discharge reaction vessel.
Granular bed is arranged on the sidewall of reactor body.In the present embodiment, granular bed includes wallboard, side
Panel, filter plate and valve.
Two wallboards are separately fixed on the sidewall of reactor body.For convenience of explanation, refer in particular to be positioned at two wallboards
Sidewall between the fixed position of sidewall is referred to as " partial sidewall ".Pyrolysis oil gas vent is arranged in this " partial sidewall ",
I.e. it is provided with pyrolysis oil gas vent on the sidewall between the fixed position of wallboard.
Side panel is fixed in the middle of two wallboards.The partial sidewall of two wallboards, side panel and reactor body is two ends
The cylindrical body of opening, around the cavity defining granular bed.This cavity opens up and down, forms the passage that raw material falls.Change
Sentence is talked about, and the top of granular bed is open upper shed, as particle entrance.Being provided with in the bottom of granular bed can
Flexible valve, by controlling the aperture of valve, controls discharging speed.
Valve is a plate body, and the correct position under " partial sidewall " of previous reaction device body arranges elongated hole, valve
Telescopic it is installed in elongated hole.Valve is drawn in direction outside reactor body, can accelerate the raw material in granular bed cavity
Falling speed；Direction in reactor body pushes away valve, can slow down the raw material falling speed in granular bed cavity.Operation
Personnel can need to carry out autonomous operation according to production.
Side panel is porous plate, and side panel aperture is 0～0.05mm, the density in hole be area hole count no less than 500～
5000/cm2.Pyrolysis oil gas is in side panel enters the cavity of granular bed, by pyrolysis oil after its interior raw material filters
Gas outlet is discharged outside reactor body.
Granular bed farther includes filter plate, and filter plate is arranged between two wallboards and relative with pyrolysis oil gas vent,
Filter plate is by the cavity isolation of pyrolysis oil gas vent with granular bed.Filter plate is porous plate, and the aperture of filter plate is 0～0.1mm, hole
Density be area hole count no less than 50～5000/cm2.Pyrolysis oil gas, by filter plate, is discharged reaction by pyrolysis oil gas vent
Device body is external.
The sidewall spacers of filter plate and reactor body is arranged, filter plate, two wallboards and sidewall surround air chamber.So, heat
When solution oil gas is entered air chamber by the cavity of granular bed, all participation work of filter plate, it is to avoid filter plate is because of only corresponding pyrolysis
The partial ventilation of oil gas vent, uses the excessive pore causing this part to be distributed of frequency to be blocked by tar too early and scrap, extends
Service life of filter plate, reducing stops work changes the frequency of filter plate, improves production efficiency.
Filter plate also has another set-up mode: filter plate is arranged on pyrolysis oil gas outlet, will pyrolysis oil gas vent with
Grain moving bed isolation.In general, the pyrolysis oil gas vent of reactor is with one section of pipe joint, the convenient pipeline with transmission gas
Connecting, filter plate of the present utility model is arranged in the pipe joint of pyrolysis oil gas vent, it is possible to reduce filter plate, the material of dividing plate disappear
Consumption.
The semicoke outlet of pyrolysis of coal reactor 100 is connected with the semicoke entrance of CFBB 200.Recirculating fluidized bed
Boiler 200 enters through the semicoke entrance of CFBB 200 as burner, semicoke.Burning semicoke can have multiple use,
As being used for generating electricity.
This utility model also includes pyrolysis oil gas processing system 300, and the pyrolysis oil gas producing pyrolysis of coal reactor 100 enters
Row processes.Pyrolysis oil gas processing system 300 includes Separate System of Water-jet 301, pyrolysis gas cleaning system 302 and tar refining system
303.Pyrolysis oil gas processing system 300 is connected with the pyrolysis oil gas vent of described pyrolysis of coal reactor 100.
Separate System of Water-jet 301, for being gas and liquid by pyrolysis Oil-gas Separation, is provided with gas outlet and liquid discharge
Mouthful.Separate System of Water-jet 301 is connected with the pyrolysis oil gas vent of pyrolysis of coal reactor 100, and gas outlet purifies system with pyrolysis gas
System 302 connection, liquid outlet is connected with tar refining system 303.
The gas that Separate System of Water-jet 301 separates enters pyrolysis gas cleaning system 302 through gas outlet, pyrolysis gas purify
System 302 produces combustible gas after processing.Pyrolysis gas cleaning system 302 has and is connected to the flammable of described pyrolysis of coal reactor 100
Gas exports.Pyrolysis gas cleaning system 302 produces part combustible gas and delivers to pyrolysis of coal reactor 100 and burn, and provides for pyrolytic reaction
Heat energy, it is achieved that the partly self-supporting of energy needed for system.
The liquid that Separate System of Water-jet 301 separates enters tar refining system 303 through liquid outlet, through tar refining system
303 process obtain high-quality tar.
As in figure 2 it is shown, this utility model uses above-mentioned pyrolysis of coal reactor to process with CFBB combined system
The flow process of coal comprises the steps:
1, raw material is crushed to particle diameter 6～8mm.
2, the raw material after crushing adds in pyrolysis of coal reactor, makes raw material generation pyrolytic reaction, and pyrolytic reaction produces heat
Solve oil gas and pyrolysis char.
3, the pyrolysis oil gas produced is produced coal pyrolysis reactor by granular bed dedusting, heel row of lowering the temperature.
4, the pyrolysis char of 400-600 DEG C is exported discharge from the semicoke of pyrolysis of coal reactor, enter recirculating fluidized bed, combustion
The burning air air distribution plate by bottom, with coal-char combustion.The pyrolysis oil pneumatic transmission discharging pyrolysis of coal reactor is entered gas-liquid separation
System, obtains pyrolysis gas and pyrolytic tar.Pyrolysis gas is sent into pyrolysis gas cleaning system, is obtained by the operation such as desulfurization, deamination
Combustible gas, sends into tar refining system by pyrolytic tar, hydrogenated is refining to obtain high-quality tar.
This utility model uses heat accumulating type descending-bed reactor as pyrolysis of coal reactor.Built-in of reactor body top
Grain moving bed dedusting, enters stove pyrolyzing coal and is partially into granular bed, and pyrolysis oil gas effectively reduces heat through granular bed
Dustiness in venting one's spleen, reduces follow-up tar pretreated cost, reduces pyrolysis of coal oil gas temperature by dust pelletizing system simultaneously,
Make part heavy tar condense, reduce heavy tar yield.The hot CFBB that is delivered to of semicoke produced directly fires
Burn, the sensible heat that pyrolysis char is self-contained can be effectively utilized.
Embodiment
Indonesia's brown coal are crushed to particle diameter 6～8mm, send into pyrolysis of coal reactor and CFBB combined system
Pyrolysis of coal reactor, pyrolysis of coal reactor is provided with Multi-layer warming radial canal and granular bed.The pyrolysis that pyrolytic reaction produces
Oil gas, after Separate System of Water-jet, pyrolysis gas cleaning system and tar refining system, can obtain Cole Angel and high-quality tar.Can
Forming as shown in table 1 below in combustion gas, the pyrolysis char temperature of generation is 510 DEG C, hot enter burning in circulating fluid bed boiler generating.
Table 2 is projects productivity.
Composition in table 1 combustible gas
Table 2 projects productivity
| Project | Combustible gas | Pyrolytic tar | Semicoke |
| Productivity/% | 15.42 | 9.08 | 65.78 |
Compared with conventional recycle fluidized-bed combustion boiler, the hot pyrolysis char discharged from pyrolysis of coal reactor directly enters recycle stream
Fluidized bed boiler, whole system energy utilization efficiency improves 2.3%, and the income of combustible gas and tar is converted cost of electricity-generating
In, cost of electricity-generating reduces about 5.8%, and tar pretreated cost reduces by 6.2%.
It should be noted that each embodiment above by reference to described by accompanying drawing is only in order to illustrate this utility model rather than limit
Make scope of the present utility model, it will be understood by those within the art that, without departing from spirit of the present utility model and model
The amendment on the premise of enclosing carried out this utility model or equivalent, all should contain within the scope of this utility model.
Additionally, unless the context outside indication, the word occurred in the singular includes plural form, and vice versa.It addition, unless especially
Explanation, then all or part of of any embodiment can use in conjunction with all or part of of any other embodiments.
Claims (7)
1. pyrolysis of coal reactor and a CFBB combined system, including: pyrolysis of coal reactor and recirculating fluidized bed
Boiler, it is characterised in that
Described pyrolysis of coal reactor includes: reactor body and granular bed, and described granular bed includes: side panel, solid
Two wallboards being scheduled on the sidewall of described reactor body and telescopic valve, the most described side panel, said two wall
Plate and described sidewall surround the cavity of upper shed, and described side panel is porous plate, and described valve is positioned at described granular bed
Bottom, the sidewall between the fixed position of described wallboard is provided with pyrolysis oil gas vent；
The semicoke outlet of described pyrolysis of coal reactor is connected with the semicoke entrance of described CFBB.
Pyrolysis of coal reactor the most according to claim 1 and CFBB combined system, it is characterised in that described
Valve is plate body, the sidewall between the fixed position of described wallboard have elongated hole, the telescopic installation of described valve
In described elongated hole.
Pyrolysis of coal reactor the most according to claim 1 and CFBB combined system, it is characterised in that described
Granular bed farther includes filter plate, described filter plate be arranged between said two wallboard and with described pyrolysis oil gas vent
Relatively, thus limit air chamber between the sidewall between described filter plate, said two wallboard and the fixed position of described wallboard,
Described filter plate is porous plate.
Pyrolysis of coal reactor the most according to claim 1 and CFBB combined system, it is characterised in that described
Granular bed farther includes filter plate, and described filter plate is arranged on described pyrolysis oil gas outlet, and described filter plate is porous plate.
Pyrolysis of coal reactor the most according to claim 1 and CFBB combined system, it is characterised in that described
System farther includes pyrolysis oil gas processing system；
Described pyrolysis oil gas processing system is connected with the pyrolysis oil gas vent of described pyrolysis of coal reactor.
Pyrolysis of coal reactor the most according to claim 5 and CFBB combined system, it is characterised in that described
Pyrolysis oil gas processing system includes: Separate System of Water-jet, pyrolysis gas cleaning system, tar refining system；
The pyrolysis oil gas vent of described pyrolysis of coal reactor is connected with described Separate System of Water-jet, the gas of described Separate System of Water-jet
Body outlet is connected with described pyrolysis gas cleaning system, and the liquid outlet of described Separate System of Water-jet is with described tar refining system even
Connect.
Pyrolysis of coal reactor the most according to claim 6 and CFBB combined system, it is characterised in that described
Pyrolysis gas cleaning system has the combustible gas outlet being connected to described pyrolysis of coal reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620589413.2U CN205710588U (en) | 2016-06-16 | 2016-06-16 | Pyrolysis of coal reactor and CFBB combined system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620589413.2U CN205710588U (en) | 2016-06-16 | 2016-06-16 | Pyrolysis of coal reactor and CFBB combined system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205710588U true CN205710588U (en) | 2016-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620589413.2U Expired - Fee Related CN205710588U (en) | 2016-06-16 | 2016-06-16 | Pyrolysis of coal reactor and CFBB combined system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205710588U (en) |
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2016
- 2016-06-16 CN CN201620589413.2U patent/CN205710588U/en not_active Expired - Fee Related
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 102200 Beijing City, Changping District science and Technology Park Chang Huai Lu No. 155 Patentee after: Shenwu Technology Group Co.,Ltd. Address before: 102200 Beijing City, Changping District science and Technology Park Chang Huai Lu No. 155 Patentee before: BEIJING SHENWU ENVIRONMENT AND ENERGY TECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
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Effective date of registration: 20190121 Granted publication date: 20161123 |
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Date of cancellation: 20220921 Granted publication date: 20161123 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161123 |
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| CF01 | Termination of patent right due to non-payment of annual fee |