CN106256878A - A kind of pulverized coal pyrolysis system and method with built-in dust arrester - Google Patents

A kind of pulverized coal pyrolysis system and method with built-in dust arrester Download PDF

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Publication number
CN106256878A
CN106256878A CN201610756536.5A CN201610756536A CN106256878A CN 106256878 A CN106256878 A CN 106256878A CN 201610756536 A CN201610756536 A CN 201610756536A CN 106256878 A CN106256878 A CN 106256878A
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China
Prior art keywords
reactor
pyrolysis
dividing plate
sidewall
semicoke
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Pending
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CN201610756536.5A
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Chinese (zh)
Inventor
赵延兵
陈水渺
姜朝兴
马正民
吴道洪
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Beijing Shenwu Environmental and Energy Technology Co Ltd
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Beijing Shenwu Environmental and Energy Technology Co Ltd
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Priority to CN201610756536.5A priority Critical patent/CN106256878A/en
Publication of CN106256878A publication Critical patent/CN106256878A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D45/00Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
    • B01D45/04Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
    • B01D45/08Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D50/00Combinations of devices for separating particles from gases or vapours
    • B01D50/004Combinations of devices relating to groups B01D45/00 and B01D47/00
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10BDESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B53/00Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
    • C10B53/04Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of powdered coal
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10BDESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B57/00Other processes not covered before; Features of destructive distillation processes in general
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10BDESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B57/00Other processes not covered before; Features of destructive distillation processes in general
    • C10B57/08Non-mechanical pretreatment of the charge, e.g. desulfurization
    • C10B57/10Drying
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10BDESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B57/00Other processes not covered before; Features of destructive distillation processes in general
    • C10B57/18Modifying the properties of the distillation gases in the oven

Abstract

The present invention relates to a kind of pulverized coal pyrolysis system and method with built-in dust arrester.The system of the present invention includes reactor, cyclone separator, spray equipment, heat exchanger, and the pyrolysis oil gas generated in reactor enters in spray equipment via cyclone separator, and the semicoke of generation enters in heat exchanger;Reactor has the dividing plate arranged along short transverse, reactor is divided into pyrolysis zone and dedusting area, and communicate bottom pyrolysis zone and dedusting area, reactor has sidewall a positioned opposite and sidewall a ', wherein, dedusting area includes sidewall a positioned opposite and dividing plate, and, sidewall a and dividing plate are disposed with multiple swash plate, swash plate has end b and end b ', and its medial end portions b is fixed on dividing plate or sidewall a, and b ' is unsettled in end, the end b of two adjacent swash plates is separately fixed on dividing plate and sidewall a so that two adjacent swash plates are arranged in a crossed manner.The present invention can effectively extract the petroleum resources in fine coal, and efficiency of dust collection is high, simplifies subsequent handling.

Description

A kind of pulverized coal pyrolysis system and method with built-in dust arrester
Technical field
The present invention relates to chemical field, particularly relate to a kind of pulverized coal pyrolysis system and method, this system has built-in dedusting Device, can effectively reduce the dustiness of thermal decomposition product.
Background technology
Along with the development of technology, the accounting of fine coal increases severely the most therewith.Wherein, middle low-rank coal contains Substantial amounts of petroleum resources, directly burn not only serious environment pollution by it, also results in energy waste.Middle low order fine coal is carried out heat Solving reaction, preparation oil, gas, charcoal are one of effective ways of petroleum resources in low order fine coal in extraction.
At present, all there is the problem that tar dustiness is high in the most all of pyrolytic technique.Existing dedusting technology is main Including cyclone dust collection technology, metal screen dedusting technology, grain bed dedusting technology.Wherein, the efficiency of dust collection of cyclone dust collection technology Relatively low;The generation high temperature corrosion relatively low, easy of the bearing temperature of metal screen dedusting technology and oxidation;Grain bed dedusting technology efficiency is relatively High.But, current dedusting technology mainly uses external, is both needed to heating and thermal insulation, it is to avoid tar in high-temperature oil gas dust removal process Second pyrolysis or condensation, cause the loss of tar.
Summary of the invention
In view of the deficiencies in the prior art, it is desirable to provide a kind of pulverized coal pyrolysis system with built-in dust arrester and Method.This system and method can effectively extract the petroleum resources in fine coal, and reduces the dustiness of thermal decomposition product, has higher Efficiency of energy utilization.
The invention discloses a kind of pulverized coal pyrolysis system with built-in dust arrester, described system includes: reactor, rotation Wind separator, spray equipment, heat exchanger;
Described reactor has fine coal entrance, pyrolysis oil gas vent, semicoke outlet;
Described cyclone separator has entrance and exit, and described entrance can receive and go out via the pyrolysis oil gas of described reactor The pyrolysis oil gas that mouth is discharged, described cyclone separator is for separating the dust in described pyrolysis oil gas;
Described spray equipment heat after receiving the described separation dust discharged via the outlet of described cyclone separator Solve oil gas;
Described heat exchanger has semicoke entrance, and this semicoke entrance is exported discharge for receiving by the semicoke of described reactor Semicoke;
Wherein, described reactor has along described height for reactor direction arrange dividing plate, described dividing plate by described instead Device is answered to be divided into pyrolysis zone and dedusting area;Communicate bottom described pyrolysis zone and described dedusting area;
Described reactor has sidewall a positioned opposite and sidewall a ', and wherein, described dedusting area includes institute positioned opposite State sidewall a and described dividing plate;Further, described sidewall a and described dividing plate are disposed with multiple swash plate;
Described swash plate has end b and end b ', and its medial end portions b is fixed on described dividing plate or described sidewall a, end b ' Unsettled;The end b of two adjacent swash plates is separately fixed on described dividing plate and described sidewall a so that said two is adjacent Swash plate is arranged in a crossed manner.
Further, the swash plate in described reactor is 45 °~75 ° with the angle of horizontal direction.
Further, described swash plate in the horizontal direction be projected as the 4/5~9/10 of described dedusting area width;
The end b ' of described swash plate is described dedusting area width with the vertical dimension of the described dividing plate of opposite side or described sidewall a The 1/10~1/5 of degree.
Further, the angle between the swash plate that said two is adjacent is 30 °~90 °.
Further, described dedusting area cross-sectional area is the 1/32~1/4 of described pyrolysis zone cross-sectional area.
Further, the bottom of described dividing plate is provided with level-sensing device;Described level-sensing device vertical with described dividing plate lower end away from From for 100~500;
Described pyrolysis zone is provided with radial canal from top to bottom;Described radial canal is connected with fuel gas inlet and exhanst gas outlet.
In above-mentioned system, farther include to be pyrolyzed oil gas unit, semicoke unit, flue gas unit;
Reactor that described pyrolysis oil gas unit includes being sequentially connected with, cyclone separator, spray equipment, purifier, gas Cabinet and oil tank, fuel gas inlet;
Reactor that described semicoke unit includes being sequentially connected with, heat exchanger, semicoke warehouse;
Reactor that described flue gas unit includes being sequentially connected with, heat exchanger, exsiccator.
The invention also discloses a kind of method utilizing said system to process fine coal, said method comprising the steps of:
Fine coal is transported in described reactor via the fine coal entrance of described reactor, obtains high temperature through pyrolytic reaction Semicoke and pyrolysis oil gas, described pyrolysis oil gas enters described dedusting area and carries out dedusting, obtains the pyrolysis oil gas of rough dusting;
The pyrolysis oil gas of described rough dusting, after described pyrolysis oil gas cell processing, obtains pyrolysis oil and pyrolysis gas;
Described high-temperature semi-coke, after described semicoke cell processing, obtains low temperature semicoke.
In the method for above-mentioned process fine coal, the particle diameter≤3mm of described fine coal, moisture content is≤30wt%.
In the method for above-mentioned process fine coal, the temperature of described high-temperature semi-coke is 450~650 DEG C, the temperature of described low temperature semicoke Degree is 200~350 DEG C.
The system and method for the present invention can effectively extract the petroleum resources in fine coal, uses built-in dust arrester, can profit Using internal system sensible heat, it is not necessary to external heat source, efficiency of energy utilization is high.
This system can effectively reduce the dustiness of pyrolysis oil gas, it is to avoid the condensation of tar and second pyrolysis, enormously simplify The subsequent treatment operation of pyrolysis oil gas, low order fine coal in can be used for processing on a large scale.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the pulverized coal pyrolysis system in the embodiment of the present invention with built-in dust arrester.
Fig. 2 is the device schematic diagram of pyrolysis reactor in the embodiment of the present invention.
Reference in accompanying drawing is as follows:
1, rotary kiln;
2, feed bin;
3, feed auger;
4, pyrolysis reactor;4a, pyrolysis zone;4b, dedusting area;4-1, radial canal;4-2, exhanst gas outlet;4-3, combustion gas are entered Mouthful;4-4, level-sensing device;4-5, pyrolysis oil gas vent;4-6, swash plate;4-7, dividing plate;
5, cyclone separator;
6, ash room;
7, spray column;
8, purifier;
9, oil tank;
10, gas holder;
11, discharging spiral;
12, heat exchanger;
13, semicoke warehouse.
Detailed description of the invention
Below in conjunction with drawings and Examples, the detailed description of the invention of the present invention is described in more details, in order to energy The advantage being enough more fully understood that the solution of the present invention and its various aspects.But, specific embodiments described below and reality Executing example is only descriptive purpose rather than limitation of the present invention.
According to the schematic flow sheet shown in Fig. 1, the embodiment of the present invention can have the fine coal heat of built-in dust arrester Solution system is divided into three unit: be pyrolyzed oil gas unit, semicoke unit, flue gas unit.
The system and method for the present invention is described in detail by the flow chart below in conjunction with these three unit.
1. pyrolysis oil gas unit includes being sequentially connected with reactor, cyclone separator, spray equipment, purifier, gas holder With oil tank, fuel gas inlet.
In the embodiment of the present invention, said apparatus is respectively pyrolysis reactor 4, cyclone separator 5, spray column 7, purifier 8, gas holder 10 and oil tank 9, fuel gas inlet 4-3.
First pyrolysis reactor 4 is described:
As shown in Figure 2, pyrolysis reactor 4 is square shape vertical structure, and the main pseudosection of top and bottom is trapezoidal.
Being provided with dividing plate 4-7 in pyrolysis reactor 4, it is arranged, by reactor longitudinal subdivision along the short transverse of reactor It is two regions: pyrolysis zone 4a and dedusting area 4b.Further, pyrolysis zone 4a connects with the bottom of dedusting area 4b.
The reactor of the embodiment of the present invention has sidewall a and sidewall a '.Further, sidewall a and sidewall a ' is positioned opposite, side Wall a and dividing plate 4-7 is positioned opposite, and dividing plate 4-7 and sidewall a ' is the most positioned opposite.I.e. in the square shape vertical reactor of the present invention, Sidewall a, dividing plate 4-7, sidewall a ' are parallel to each other.
Further, dedusting area 4b includes that sidewall a and dividing plate 4-7, pyrolysis zone 4a include dividing plate 4-7 and sidewall a '.
On the sidewall a and dividing plate 4-7 of dedusting area 4b, it is evenly arranged multiple swash plate 4-6 from bottom to top.It is at sidewall a It is respectively m and n with the quantity on dividing plate 4-7.Herein, the numerical value representated by m and n can be the same or different.
Each swash plate 4-6 has two ends, is respectively designated as end b and end b '.Wherein, end b is fixed on sidewall a Or on dividing plate 4-7, end b ' is unsettled in the 4b of dedusting area.Further, when the end b of swash plate 4-6 is fixed on sidewall a, its phase The end b of adjacent swash plate 4-6 is each attached on dividing plate 4-7 so that the swash plate 4-6 that each two is adjacent presents side arranged in a crossed manner Formula.
In the embodiment of the present invention, the width of dedusting area 4b is W, and dedusting area 4b cross-sectional area is pyrolysis zone 4a cross-sectional area 1/32~1/4.
In the present embodiment, swash plate 4-6 is 45 °~75 ° with the angle of horizontal direction.Further, swash plate 4-6 is in the horizontal direction Projection be 4/5W~9/10W.
The end b ' of swash plate 4-6 is 1/10W~1/5W with the vertical dimension of the dividing plate 4-7 or sidewall a of opposite side.
The scope of the angle between the swash plate 4-6 that each two is adjacent is 30 °~90 °.
On the swash plate 4-6 of the top arranged on sidewall a, it is provided with pyrolysis oil gas vent 4-5.
Pyrolysis zone 4a is provided with multiple radial canal 4-1, its layer distributed from top to bottom in the 4a of pyrolysis zone.Radial canal 4- The two ends of 1 are connected with fuel gas inlet 4-3 and exhanst gas outlet 4-2 respectively, and the horizontal level of fuel gas inlet 4-3 is at exhanst gas outlet Under the horizontal level of 4-2.
Pyrolysis reactor 4 includes feed bin 2 and feed auger 3.Wherein, feed auger 3 is positioned at the lower end of feed bin 2, and with The fine coal entrance at 4a top, pyrolysis zone connects.Meanwhile, feed bin 2 is also connected with rotary kiln 1.
Trapezoidal portions bottom the 4a of pyrolysis zone is provided with level-sensing device 4-4, and it is 100 with vertical dimension H of dividing plate 4-7 lower end ~500.Dividing plate 4-7 bottom is provided with discharging spiral 11, and the semicoke outlet bottom discharging spiral 11 and pyrolysis reactor 4 is even Connect.
The pyrolytic reaction process carried out in pyrolysis reactor 4 is as follows:
By in the fine coal feedstock delivery of particle diameter≤3mm to rotary kiln 1, it is dried the moisture content≤30wt% to fine coal (wt% is mass percent), is then carried it to feed bin 2, is carried by fine coal entrance under the effect of feed auger 3 To the 4a of pyrolysis zone, carry out pyrolytic reaction, obtain high-temperature semi-coke and pyrolysis oil gas.
The temperature of pyrolysis oil gas is 450~600 DEG C, and it is by the region communicated bottom pyrolysis zone 4a and dedusting area 4b, warp Run to the 4b of dedusting area by pyrolysis zone 4a.Pyrolysis oil gas constantly collides with the swash plate 4-6 in the 4b of dedusting area, therein Dust will drop to bottom pyrolysis reactor 4, thus pyrolysis oil gas can be carried out preliminary dedusting.
The dedusting area 4b built-in in pyrolysis reactor 4 efficiency of dust collection >=85wt% to pyrolysis oil gas.
The pyrolysis oil gas of rough dusting is discharged via pyrolysis oil gas vent 4-5, and is transported in cyclone separator 5 enter The separation dedusting of one step, the dust being deposited on bottom is expelled in ash room 6.And the pyrolysis oil gas after the dedusting of upper strata, via whirlwind After the separation on separator 5 top, oil gas vent is expelled in spray column 7.Spray column 7 is used for pyrolysis oil gas is carried out spraying cooling, Pyrolysis oil therein is tentatively cooled down, pyrolysis gas is carried out preliminary purification simultaneously.
The oil gas discharged via the oil gas vent of spray column 7 is admitted in purifier 8, obtains pyrolysis oil and heat after purification Vent one's spleen.Pyrolysis oil is stored in oil tank 9, and pyrolysis gas is stored in gas holder 10.
Pyrolysis gas is transported in radial canal 4-1 via fuel gas inlet 4-3, provides heat for pyrolysis reactor 4.
Owing to pyrolysis oil temperature is higher and has corrosivity, therefore, swash plate 4-6 material select be high temperature resistant and Corrosion resistant rustless steel.Meanwhile, dividing plate 4-7 is to be made by stainless steel material that is heat-resisting and that readily conduct heat so that pyrolysis zone The heat of 4a can be for delivery in the 4b of dedusting area, it is to avoid pyrolysis gas condenses in the 4b of dedusting area.
2. semicoke unit includes being sequentially connected with reactor, heat exchanger, semicoke warehouse.
In the embodiment of the present invention, above-mentioned each device is respectively pyrolysis reactor 4, heat exchanger 12, semicoke warehouse 13.
Above-mentioned 1. in the high-temperature semi-coke temperature that obtains of pyrolytic reaction be 450~650 DEG C, along with pyrolytic reaction carrying out gradually Heap is to bottom pyrolysis reactor 4.When the high-temperature semi-coke height piled up reaches level-sensing device 4-4 top, start discharging spiral 11;Directly During to high-temperature semi-coke height reduction to level-sensing device 4-4 bottom, close discharging spiral 11, stop discharging.
After high-temperature semi-coke is via discharging spiral 11 discharging, be transported in heat exchanger 12, and with low-temperature flue gas therein Carry out heat exchange, cause high-temperature semi-coke temperature to reduce, obtain the low temperature semicoke of 200~350 DEG C, be then stored at semicoke warehouse 13 In.
3. flue gas unit includes being sequentially connected with reactor, heat exchanger, exsiccator.
In the embodiment of the present invention, said apparatus is respectively pyrolysis reactor 4, heat exchanger 12, rotary kiln 1.
The low-temperature flue gas temperature discharged by the exhanst gas outlet 4-2 of radial canal 4-1 is 80~90 DEG C, and low-temperature flue gas is transported to In heat exchanger 12, carrying out heat exchange with high-temperature semi-coke therein, flue gas after being heated up, its temperature is 150~220 DEG C.After intensification Flue gas is delivered in rotary kiln 1 fine coal raw material therein is carried out drying and processing.
Embodiment
Particle diameter≤3, the fine coal of moisture content 9% that are dried through rotary kiln 1 are transported in feed bin 2, through charging Spiral 3 enters and carries out pyrolytic reaction in the 4a of pyrolysis zone, and wherein the temperature of radial canal 4-1 is 600 DEG C.
The high-temperature semi-coke that pyrolytic reaction obtains is accumulated to bottom pyrolysis reactor 4, controls discharging by level-sensing device 4-4, by Discharging spiral 11 is expelled in heat exchanger 12.
Pyrolytic reaction pyrolysis oil temperature much is 500 DEG C, pyrolysis zone 4a run and carry out tentatively to the 4b of dedusting area Dedusting, obtains pyrolysis oil and pyrolysis gas the most successively after cyclone separator 5, spray column 7, purifier 8 process.Pyrolysis oil is stored up Existing in oil tank 9, pyrolysis gas is stored in gas holder 10.Pyrolysis gas can be transported in radial canal 4-1 via fuel gas inlet 4-3, uses In providing heat.
The low-temperature flue gas that temperature is 80 DEG C that radial canal 4-1 discharges, is delivered in heat exchanger 12, with high-temperature semi-coke therein Heat exchange, flue gas after being heated up, temperature is 150 DEG C.During after intensification, flue gas is transported to rotary kiln 1, fine coal therein is entered Row drying and processing.
The beneficial effect that this embodiment obtains is shown in following each table.
Table 1 products distribution
Pyrolysis oil/% Pyrolysis gas/% Semicoke/% Pyrolysis water/%
9.2 15.3 63.5 12
(remarks: % is mass percent)
The contrast of oil gas dustiness it is pyrolyzed before and after table 2 dedusting
Oil gas dustiness it is pyrolyzed before dedusting Oil gas dustiness it is pyrolyzed after dedusting
158g/Nm3 12g/Nm3
From Tables 1 and 2, the embodiment of the present invention can effectively be extracted the energy substance in fine coal, and have preferably Dust removing effects.
It should be noted that each embodiment above by reference to described by accompanying drawing is only in order to illustrate rather than restriction originally The scope of invention, it will be understood by those within the art that, the most right Amendment that the present invention is carried out or equivalent, all should contain within the scope of the present invention.Additionally, indication unless the context Outward, the word occurred in the singular includes plural form, and vice versa.It addition, unless stated otherwise, then any embodiment All or part of can use in conjunction with all or part of of any other embodiments.

Claims (10)

1. a pulverized coal pyrolysis system with built-in dust arrester, it is characterised in that described system includes: reactor, whirlwind Separator, spray equipment, heat exchanger;
Described reactor has fine coal entrance, pyrolysis oil gas vent, semicoke outlet;
Described cyclone separator has entrance and exit, and described entrance can receive to be arranged via the pyrolysis oil gas vent of described reactor The pyrolysis oil gas gone out, described cyclone separator is for separating the dust in described pyrolysis oil gas;
Described spray equipment pyrolysis oil after receiving the described separation dust discharged via the outlet of described cyclone separator Gas;
Described heat exchanger has semicoke entrance, and this semicoke entrance is exported, for receiving, half discharged by the semicoke of described reactor Burnt;
Wherein, having the dividing plate arranged along described height for reactor direction in described reactor, described dividing plate is by described reactor It is divided into pyrolysis zone and dedusting area;Communicate bottom described pyrolysis zone and described dedusting area;
Described reactor has sidewall a positioned opposite and sidewall a ', and wherein, described dedusting area includes described side positioned opposite Wall a and described dividing plate;Further, described sidewall a and described dividing plate are disposed with multiple swash plate;
Described swash plate has end b and end b ', and its medial end portions b is fixed on described dividing plate or described sidewall a, and end b ' hangs Empty;The end b of two adjacent swash plates is separately fixed on described dividing plate and described sidewall a so that adjacent oblique of said two Plate is arranged in a crossed manner.
System the most according to claim 1, it is characterised in that the swash plate in described reactor with the angle of horizontal direction is 45 °~75 °.
System the most according to claim 1, it is characterised in that
Described swash plate in the horizontal direction be projected as the 4/5~9/10 of described dedusting area width;
The end b ' of described swash plate is described dedusting area width with the vertical dimension of the described dividing plate of opposite side or described sidewall a 1/10~1/5.
System the most according to claim 1, it is characterised in that the angle between the swash plate that said two is adjacent be 30 °~ 90°。
System the most according to claim 1, it is characterised in that described dedusting area cross-sectional area is described pyrolysis zone cross section Long-pending 1/32~1/4.
System the most according to claim 1, it is characterised in that
The bottom of described dividing plate is provided with level-sensing device;Described level-sensing device is 100~500 with the vertical dimension of described dividing plate lower end ㎜;
Described pyrolysis zone is provided with radial canal from top to bottom;Described radial canal is connected with fuel gas inlet and exhanst gas outlet.
System the most according to claim 6, it is characterised in that described system includes being pyrolyzed oil gas unit, semicoke unit, cigarette Gas unit;
Reactor that described pyrolysis oil gas unit includes being sequentially connected with, cyclone separator, spray equipment, purifier, gas holder and Oil tank, fuel gas inlet;
Reactor that described semicoke unit includes being sequentially connected with, heat exchanger, semicoke warehouse;
Reactor that described flue gas unit includes being sequentially connected with, heat exchanger, exsiccator.
8. the method that the system utilizing one of claim 1-7 described processes fine coal, said method comprising the steps of:
Fine coal is transported in described reactor via the fine coal entrance of described reactor, obtains high-temperature semi-coke through pyrolytic reaction With pyrolysis oil gas, described pyrolysis oil gas enters described dedusting area and carries out dedusting, obtains the pyrolysis oil gas of rough dusting;
The pyrolysis oil gas of described rough dusting, after described pyrolysis oil gas cell processing, obtains pyrolysis oil and pyrolysis gas;
Described high-temperature semi-coke, after described semicoke cell processing, obtains low temperature semicoke.
Method the most according to claim 8, it is characterised in that the particle diameter≤3mm of described fine coal, moisture content is≤ 30wt%.
Method the most according to claim 8, it is characterised in that the temperature of described high-temperature semi-coke is 450~650 DEG C, described The temperature of low temperature semicoke is 200~350 DEG C.
CN201610756536.5A 2016-08-29 2016-08-29 A kind of pulverized coal pyrolysis system and method with built-in dust arrester Pending CN106256878A (en)

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CN105838460A (en) * 2016-05-19 2016-08-10 北京神雾环境能源科技集团股份有限公司 Coal pyrolysis and cracking gas production combined gas power generation system
CN206051944U (en) * 2016-08-29 2017-03-29 北京神雾环境能源科技集团股份有限公司 A kind of pulverized coal pyrolysis system with built-in dust arrester

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Application publication date: 20161228