CN105802648B - Fine coal fast pyrolysis systems - Google Patents
Fine coal fast pyrolysis systems Download PDFInfo
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- CN105802648B CN105802648B CN201610355389.0A CN201610355389A CN105802648B CN 105802648 B CN105802648 B CN 105802648B CN 201610355389 A CN201610355389 A CN 201610355389A CN 105802648 B CN105802648 B CN 105802648B
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- fluidized bed
- flow fluidized
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- pyrogenation stove
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- 238000000197 pyrolysis Methods 0.000 title claims abstract description 53
- 239000003245 coal Substances 0.000 title claims abstract description 47
- 239000000463 material Substances 0.000 claims abstract description 14
- 238000007599 discharging Methods 0.000 claims abstract description 9
- 239000000428 dust Substances 0.000 claims description 56
- 239000007789 gas Substances 0.000 claims description 45
- 239000007921 spray Substances 0.000 claims description 27
- 239000004744 fabric Substances 0.000 claims description 20
- 239000000571 coke Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 239000002737 fuel gas Substances 0.000 claims description 10
- 238000005192 partition Methods 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 9
- 238000005336 cracking Methods 0.000 abstract description 2
- 239000012535 impurity Substances 0.000 abstract description 2
- 238000000746 purification Methods 0.000 abstract description 2
- KSSNXJHPEFVKHY-UHFFFAOYSA-N phenol;hydrate Chemical compound O.OC1=CC=CC=C1 KSSNXJHPEFVKHY-UHFFFAOYSA-N 0.000 description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 239000003546 flue gas Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 238000010791 quenching Methods 0.000 description 5
- 230000000171 quenching effect Effects 0.000 description 5
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 238000010410 dusting Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 235000003642 hunger Nutrition 0.000 description 1
- -1 inflammable Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000037351 starvation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/02—Dust removal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/02—Dust removal
- C10K1/024—Dust removal by filtration
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/04—Purifying combustible gases containing carbon monoxide by cooling to condense non-gaseous materials
- C10K1/06—Purifying combustible gases containing carbon monoxide by cooling to condense non-gaseous materials combined with spraying with water
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention discloses a kind of fine coal fast pyrolysis systems, including feed bin (2), feeding screw (3), down-flow fluidized bed using ECT fast pyrogenation stove (4), spiral discharging device (6), wherein, feed bin (2) is connected with feeding screw (3), feeding screw (3) is connected with the material inlet of down-flow fluidized bed using ECT fast pyrogenation stove (4), the material outlet of down-flow fluidized bed using ECT fast pyrogenation stove (4) is connected with spiral discharging device (6), it is characterised in that：Down-flow fluidized bed using ECT fast pyrogenation stove (4) further includes having grain bed deduster (5), grain bed deduster (5) is partially embedded into down-flow fluidized bed using ECT fast pyrogenation stove (4), grain bed deduster and down-flow fluidized bed using ECT fast pyrogenation stove are combined, fine coal can be utilized on a large scale, it is simple for process to be pyrolyzed oil gas purification and impurity removal simultaneously, without external heat source, avoid the loss of raw secondarily cracking tar, it is cost-effective, the yield and quality of tar can be effectively improved using the system, it is simple for process, and it is suitble to industrialization promotion.
Description
Technical field
The invention belongs to chemical fields, specifically, the present invention relates to a kind of fine coal fast pyrolysis systems.
Background technology
China is the country of a rich coal, oil starvation, few gas, this will determine China in a very long time energy consumption master from now on
It will be based on coal resources.However, low-order coal occupies 55% or more in the coal resources in China, middle low order coal contains largely
Volatile matter, directly burning not only cause energy waste, can also cause environmental pollution.Therefore, the high-efficiency cleaning of middle low-order coal utilizes
Environmental problem can not only be improved, moreover it is possible to create huge economic and social benefits.
With the extensive use of modernization coal-mining technique, fine coal yield rises to 80%-90% by 60%, and fine coal is deposited
In easy airborne dust, inflammable, explosive, the easy coking of pipeline in pyrolytic process, pyrolytic tar dustiness is big, and fine powder semicoke, which is difficult to be utilized, etc. asks
Topic so that the comprehensive utilization difficulty of fine coal is big, unmarketable and largely overstock.
Invention content
To solve the above-mentioned problems, the present invention provides a kind of fine coal fast pyrolysis systems.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following scheme：
A kind of fine coal fast pyrolysis systems, including feed bin 2, feeding screw 3, down-flow fluidized bed using ECT fast pyrogenation stove 4, spiral discharging
Device 6, wherein feed bin 2 is connected with feeding screw 3, and feeding screw 3 is connected with the material inlet of down-flow fluidized bed using ECT fast pyrogenation stove 4,
The material outlet of down-flow fluidized bed using ECT fast pyrogenation stove 4 is connected with spiral discharging device 6, it is characterised in that：Down-flow fluidized bed using ECT fast pyrogenation stove 4 also wraps
Grain bed deduster 5 is included, grain bed deduster 5 is partially embedded into down-flow fluidized bed using ECT fast pyrogenation stove 4；Grain bed deduster 5 wraps
Include dust chamber 5-2, riser 5-3, collection chamber 5-5, wherein the top of riser 5-3 is connected to the top of dust chamber 5-2, is carried
The bottom of riser 5-3 is connected to the bottom of dust chamber 5-2, and dust chamber 5-2 is connected with riser 5-3 constitutes loop checking installation；Filter
Dirt room 5-2 is located in down-flow fluidized bed using ECT fast pyrogenation stove 4, and riser 5-3 and collection chamber 5-5 are located at outside down-flow fluidized bed using ECT fast pyrogenation stove 4；Filter
Dirt room 5-2 stretch into down-flow fluidized bed using ECT fast pyrogenation furnace interior side wall be equipped with duct 5-6, dust chamber 5-2 it is adjacent with collection chamber 5-5 and
It is again provided with duct 5-6 on the side wall that dust chamber 5-2 and collection chamber 5-5 is shared；Exhaust outlet 5- is provided at the top of riser 5-3
The bottom of 1, riser 5-3 are provided with blast cap 5-4.
Preferably, grain bed deduster 5 further includes partition board 5-7, partition board 5-7 be arranged the bottom of connection dust chamber 5-2 with
In the pipeline of the bottom of riser 5-3, partition board 5-7 is gate valve or butterfly valve.
Preferably, a diameter of 2-10mm of the duct 5-6, the duct 5-6 are evenly distributed on the side wall of dust chamber 5-2
On.
Preferably, the side wall of the collection chamber 5-5 is equipped with pyrolysis oil gas vent 4-5.
Preferably, down-flow fluidized bed using ECT fast pyrogenation stove 4 further includes cloth tracheae 4-1, radiant tube 4-2, fuel gas inlet 4-3, flue gas
4-4 is exported, wherein cloth tracheae 4-1 is set to the underface of 4 material inlet of down-flow fluidized bed using ECT fast pyrogenation stove, radiant tube 4-2 multilayers
It is arranged in the inside of down-flow fluidized bed using ECT fast pyrogenation stove 4, fuel gas inlet 4-3 is set on the side wall of down-flow fluidized bed using ECT fast pyrogenation stove 4 and position
It is set on 4 side wall of down-flow fluidized bed using ECT fast pyrogenation stove in the lower section of cloth tracheae 4-1, exhanst gas outlet 4-4 and is located at fuel gas inlet 4-3
Lower section.
Further, the 200mm immediately below the material inlet of down-flow fluidized bed using ECT fast pyrogenation stove 4 is arranged in the outlets cloth tracheae 4-1
At~600mm.
Preferably, further include cyclone dust collectors 7, cyclone dust collectors 7 are connected directly with pyrolysis oil gas vent 4-5, so as to right
Pyrolysis oil gas by filtering is further filtered.
Further, further include spray column 9, the spray column 9 is connected directly with cyclone dust collectors 7, so as to through overwinding
The cleaned pyrolysis oil gas of wind separator carries out condensation spray.
Further, further include oil water separator 10, the oil water separator 10 is connected directly with spray column 9, so as to
The phenol water that spray column obtains is detached with the mixture of tar.
Further, further include clean unit 12, the clean unit 12 is connected directly with spray column 9, so as to warp
The pyrolysis gas that spray column obtains is purified.
Preferably, further include tar storage tank 11, the tar storage tank 11 is connected with oil water separator 10, so as to through grease
The tar that separator is handled is stored.
Preferably, further include heat exchanger 13, the heat exchanger 13 is connected directly with down-flow fluidized bed using ECT fast pyrogenation stove 4, so as to
The high-temperature semi-coke obtained to down-flow fluidized bed using ECT fast pyrogenation stove exchanges heat.
Further, further include coke quencher 14, the coke quencher 14 is connected directly with heat exchanger 13, after heat exchanging
Semicoke carries out quenching processing.
Preferably, further include rotary kiln 1, the rotary kiln 1 is connected directly with feed bin 2, so as to powder
Coal raw material carries out preheating and drying.
The beneficial effects of the invention are as follows：A kind of fine coal fast pyrolysis systems of invention, by grain bed deduster and
Down-flow fluidized bed using ECT fast pyrogenation stove is combined, and can utilize fine coal on a large scale, while it is simple for process to be pyrolyzed oil gas purification and impurity removal, without outer
Heating source avoids the loss of raw secondarily cracking tar, cost-effective, and the yield and product of tar can be effectively improved using the system
Matter, it is simple for process, and it is suitble to industrialization promotion.
Description of the drawings
Fig. 1 is the structural schematic diagram of the fine coal fast pyrolysis systems of the present invention.
Fig. 2 is the structural schematic diagram of the down-flow fluidized bed using ECT fast pyrogenation stove of the fine coal fast pyrolysis systems of the present invention.
Fig. 3 is the structural schematic diagram of the grain bed deduster of the fine coal fast pyrolysis systems of the present invention.
Wherein：1, rotary kiln, 2, feed bin, 3, feeding screw, 4, down-flow fluidized bed using ECT fast pyrogenation stove, 4-1, cloth gas
Pipe, 4-2, radiant tube, 4-3, fuel gas inlet, 4-4, exhanst gas outlet, 4-5, pyrolysis oil gas vent, 5, grain bed deduster, 5-1,
Exhaust outlet, 5-2, dust chamber, 5-3, riser, 5-4, blast cap, 5-5, collection chamber, 5-6, through-hole, 5-7, partition board, 6, spiral discharging
Device, 7, cyclone dust collectors, 8, ash bucket, 9, spray column, 10, oil water separator, 11, tar storage tank, 12, clean unit, 13, heat exchange
Device, 14, coke quencher, 15, semicoke warehouse.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Referring to Fig.1, Fig. 2, Fig. 3.
A kind of fine coal fast pyrolysis systems, including feed bin 2, feeding screw 3, down-flow fluidized bed using ECT fast pyrogenation stove 4, spiral discharging
Device 6, wherein feed bin 2 is connected with feeding screw 3, and feeding screw 3 is connected with the material inlet of down-flow fluidized bed using ECT fast pyrogenation stove 4,
The material outlet of down-flow fluidized bed using ECT fast pyrogenation stove 4 is connected with spiral discharging device 6, and down-flow fluidized bed using ECT fast pyrogenation stove 4 further includes having grain bed
Deduster 5, grain bed deduster 5 are partially embedded into down-flow fluidized bed using ECT fast pyrogenation stove 4；Grain bed deduster 5 includes dust chamber 5-
2, riser 5-3, collection chamber 5-5, wherein the top of riser 5-3 is connected to the top of dust chamber 5-2, the bottom of riser 5-3
Portion is connected to the bottom of dust chamber 5-2, and dust chamber 5-2 is connected with riser 5-3 constitutes loop checking installation；Dust chamber 5-2 is located at
In down-flow fluidized bed using ECT fast pyrogenation stove 4, riser 5-3 and collection chamber 5-5 are located at outside down-flow fluidized bed using ECT fast pyrogenation stove 4；Dust chamber 5-2 is stretched into
The side wall of down-flow fluidized bed using ECT fast pyrogenation furnace interior is equipped with duct 5-6, dust chamber 5-2 is adjacent with collection chamber 5-5 and dust chamber 5-2 and
It is again provided with duct 5-6 on side wall shared collection chamber 5-5；Exhaust outlet 5-1, riser 5-3 are provided at the top of riser 5-3
Bottom be provided with blast cap 5-4.
Grain bed deduster 5 further includes partition board 5-7, and partition board 5-7 is arranged in the bottom of connection dust chamber 5-2 and riser 5-
In the pipeline of 3 bottom, partition board 5-7 is gate valve or butterfly valve.
A diameter of 2-10mm of the duct 5-6, the duct 5-6 are evenly distributed on the side wall of dust chamber 5-2.
The side wall of the collection chamber 5-5 is equipped with pyrolysis oil gas vent 4-5.
Down-flow fluidized bed using ECT fast pyrogenation stove 4 further includes cloth tracheae 4-1, radiant tube 4-2, fuel gas inlet 4-3, exhanst gas outlet 4-4,
Wherein cloth tracheae 4-1 is set to the underface of 4 material inlet of down-flow fluidized bed using ECT fast pyrogenation stove, radiant tube 4-2 multi-tier arrangements under
The inside of row bed fast pyrogenation stove 4, fuel gas inlet 4-3 are set on the side wall of down-flow fluidized bed using ECT fast pyrogenation stove 4 and are located at cloth gas
The lower section of pipe 4-1, exhanst gas outlet 4-4 are set to the lower section on 4 side wall of down-flow fluidized bed using ECT fast pyrogenation stove and positioned at fuel gas inlet 4-3.
The outlet cloth tracheae 4-1 is arranged immediately below the material inlet of down-flow fluidized bed using ECT fast pyrogenation stove 4 at 200mm~600mm.
Further include cyclone dust collectors 7, cyclone dust collectors 7 are connected directly with pyrolysis oil gas vent 4-5, so as to by filtering
Pyrolysis oil gas further filtered.
Further include spray column 9, the spray column 9 is connected directly with cyclone dust collectors 7, so as to net by cyclone separator
The pyrolysis oil gas changed carries out condensation spray.
Further include oil water separator 10, the oil water separator 10 is connected directly with spray column 9, to be obtained to spray column
Phenol water detached with the mixture of tar.
Further include clean unit 12, the clean unit 12 is connected directly with spray column 9, so as to being obtained through spray column
Pyrolysis gas purified.
Further include tar storage tank 11, the tar storage tank 11 is connected with oil water separator 10, so as to through oil water separator
Obtained tar is handled to be stored.
Further include heat exchanger 13, the heat exchanger 13 is connected directly with down-flow fluidized bed using ECT fast pyrogenation stove 4, so as to down-flow fluidized bed using ECT
The high-temperature semi-coke that fast pyrogenation stove obtains exchanges heat.
Further include coke quencher 14, the coke quencher 14 is connected directly with heat exchanger 13, so that the semicoke after heat exchanging carries out
Quenching is handled.
Further include rotary kiln 1, the rotary kiln 1 is connected directly with feed bin 2, so as to fine coal raw material into
Row preheating and drying.
Cyclone dust collectors 7 are connected directly with down-flow fluidized bed using ECT fast pyrogenation stove 4, and cyclone dust collectors 7 are used for being pyrolyzed oil gas vent
The pyrolysis oil gas of 4-5 discharges carries out final dusting processing；Spray column 9 is connected directly with cyclone dust collectors 7, spray column 9 for pair
Pyrolysis oil gas by dust removal process is condensed, to obtain the mixture of pyrolysis gas and phenol water and tar；Oil water separator
10 are connected directly with spray column 9, to carry out water-oil separating to the mixture of phenol water and tar, obtain phenol water and tar, wherein
Phenol water is as spray liquid reuse；Clean unit 12 is connected directly with spray column 9, to carry out purified treatment to pyrolysis gas, is obtained
Clean pyrolysis gas；Heat exchanger 13 is connected directly with spiral discharging device 6, to carry out heat exchange processing to flue gas and high-temperature semi-coke,
Obtain heat exchange flue gas and medium temperature semicoke；Coke quencher 14 is connected directly with heat exchanger 13, to carry out quenching processing to medium temperature semicoke；
Rotary kiln 1 is connected directly with feed bin 2, to be delivered in feed bin by the fine coal of preheating and drying；Semicoke warehouse 15 with
Coke quencher 14 is connected directly, to be stored to the semicoke by quenching processing；Tar storage tank 11 is straight with oil water separator 10
Connect it is connected, to be stored to the tar obtained by water-oil separating；Ash bucket 8 is connected directly with cyclone separator 7, so as to right
The semicoke that cyclone separator 7 is isolated is stored.
The riser 5-3 and dust chamber 5-2 forming circuits, pyrolysis oil gas pass through the through-hole 5-6 on dust chamber's 5-2 side walls
Into dust chamber 5-2 and filter medium is flowed through, dust can be removed by the collision of filter medium, thus removed in pyrolysis oil gas
Dust, then the pyrolysis oil gas through dedusting collection chamber 5-5 is entered by the through-hole 5-6 on the side wall of the other sides dust chamber 5-2, by
This is discharged from pyrolysis oil gas vent 4-5；By the blast cap 5-4 of the bottoms riser 5-3 to being blown into gas inside riser 5-3, one
Aspect purges the dust being adsorbed on the filter medium of dust, and the filter medium through purge is on the other hand blown cycle
It is back to dust chamber 5-2, to recycle.
The workflow of the present embodiment is：The fine coal that particle size range is 0.1mm-6mm is delivered in feed bin 2, fine coal warp
Fine coal is delivered in down-flow fluidized bed using ECT fast pyrogenation stove 4 by feeding screw 3, after the cloth gas cloth that fine coal is sprayed through cloth tracheae
Even whereabouts, fine coal is in direct contact generation fast pyrogenation with radiant tube 4-2 in dropping process, and obtained tar passes through grain bed dedusting
The dust chamber 5-2 of device 5 carries out rough dusting, through the pyrolysis oil gas of rough dusting after cyclone dust collectors 7 carry out dedusting again, warp
Spray column 9 carries out condensation cleaning processing.
When the fine coal of grain size 0.5mm-1mm is delivered to after rotary kiln is dried in feed bin, by feeding screw
It is delivered in down-flow fluidized bed using ECT fast pyrogenation stove (600 DEG C), after the cloth gas uniform distribution that fine coal is sprayed into through cloth tracheae, by itself
Fast pyrogenation reaction occurs simultaneously for gravity fall；Oil gas is pyrolyzed after dust chamber's dust filtering of grain bed deduster, enters rotation
Wind deduster carries out final dusting, enters back into spray column and carries out condensation process, obtains the mixing of pyrolysis gas and phenol water and tar
The mixture of object, phenol water and tar enters oil water separator and carries out water-oil separating, and tar send to tar storage tank and stores, and phenol water is made
For spray liquid reuse, pyrolysis gas enters clean unit and carries out purified treatment, obtains clean pyrolysis gas, clean pyrolysis gas its
A middle part is sent to radiant tube and provides energy, and another part is used as cloth gas cloth；The flue gas (60 DEG C) of radiant tube discharge
Heat exchange processing is carried out in heat exchanger with high-temperature semi-coke (550 DEG C), obtains heat exchange flue gas (120 DEG C) and medium temperature semicoke (300 DEG C),
Middle heat exchange flue gas is delivered to rotary kiln and carries out preheating and drying to fine coal, and medium temperature semicoke send to coke quencher and carries out quenching processing
After send to semicoke warehouse store.The tar yield 8.4% that fine coal fast pyrogenation obtains, char yeild 68.5%, pyrolysis gas yield
14.3%；Tar dustiness is reduced to 1.65% by 11.54%.
It is enlightenment with above-mentioned desirable embodiment according to the present invention, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to determine its technical scope according to right.
Claims (13)
1. a kind of fine coal fast pyrolysis systems, including feed bin (2), feeding screw (3), down-flow fluidized bed using ECT fast pyrogenation stove (4), spiral
Discharger (6), wherein feed bin (2) is connected with feeding screw (3), feeding screw (3) and down-flow fluidized bed using ECT fast pyrogenation stove (4)
Material inlet be connected, the material outlet of down-flow fluidized bed using ECT fast pyrogenation stove (4) is connected with spiral discharging device (6), it is characterised in that：Under
Row bed fast pyrogenation stove (4) further includes having grain bed deduster (5), and it is quick that grain bed deduster (5) is partially embedded into down-flow fluidized bed using ECT
In pyrolysis oven (4)；Grain bed deduster (5) includes dust chamber (5-2), riser (5-3), collection chamber (5-5), wherein is promoted
The top of pipe (5-3) is connected to the top of dust chamber (5-2), and the bottom of riser (5-3) connects with the bottom of dust chamber (5-2)
Logical, dust chamber (5-2) is connected with riser (5-3) constitutes loop checking installation；Dust chamber (5-2) is located at down-flow fluidized bed using ECT fast pyrogenation stove
(4) in, riser (5-3) and collection chamber (5-5) are located at down-flow fluidized bed using ECT fast pyrogenation stove (4) outside；Dust chamber (5-2) stretches into down-flow fluidized bed using ECT
The side wall of fast pyrogenation furnace interior is equipped with the first duct (5-6), and dust chamber (5-2) and collection chamber (5-5) be adjacent and dust chamber
It is again provided with the second duct (5-6) on (5-2) and the shared side wall of collection chamber (5-5)；The row of being provided at the top of riser (5-3)
The bottom of gas port (5-1), riser (5-3) is provided with blast cap (5-4)；
The side wall of the collection chamber (5-5) is equipped with pyrolysis oil gas vent (4-5).
2. fine coal fast pyrolysis systems according to claim 1, it is characterised in that：Grain bed deduster (5) further include every
Plate (5-7), partition board (5-7) setting is in the pipeline of the bottom of connection dust chamber (5-2) and the bottom of riser (5-3), partition board
(5-7) is gate valve or butterfly valve.
3. fine coal fast pyrolysis systems according to claim 1, it is characterised in that：First duct (5-6) and second
A diameter of 2-10mm in duct (5-6), first duct (5-6) and the second duct (5-6) are evenly distributed on dust chamber (5-2)
Side wall on.
4. fine coal fast pyrolysis systems according to claim 1, it is characterised in that：Down-flow fluidized bed using ECT fast pyrogenation stove (4) also wraps
Cloth tracheae (4-1), radiant tube (4-2), fuel gas inlet (4-3), exhanst gas outlet (4-4) are included, wherein cloth tracheae (4-1) is arranged
In the underface of down-flow fluidized bed using ECT fast pyrogenation stove (4) material inlet, radiant tube (4-2) multi-tier arrangement in down-flow fluidized bed using ECT fast pyrogenation stove
(4) inside, fuel gas inlet (4-3) are set on the side wall of down-flow fluidized bed using ECT fast pyrogenation stove (4) and positioned at cloth tracheae (4-1)
Lower section, exhanst gas outlet (4-4) are set to the lower section on down-flow fluidized bed using ECT fast pyrogenation stove (4) side wall and positioned at fuel gas inlet (4-3).
5. fine coal fast pyrolysis systems according to claim 4, it is characterised in that：Cloth tracheae (4-1) outlet setting exists
Immediately below the material inlet of down-flow fluidized bed using ECT fast pyrogenation stove (4) at 200mm~600mm.
6. fine coal fast pyrolysis systems according to claim 1, it is characterised in that：Further include cyclone dust collectors (7), whirlwind
Deduster (7) is connected directly with pyrolysis oil gas vent (4-5).
7. fine coal fast pyrolysis systems according to claim 6, it is characterised in that：Further include spray column (9), the spray
Tower (9) is connected directly with cyclone dust collectors (7).
8. fine coal fast pyrolysis systems according to claim 7, it is characterised in that：Further include oil water separator (10), institute
Oil water separator (10) is stated to be connected directly with spray column (9).
9. fine coal fast pyrolysis systems according to claim 7, it is characterised in that：Further include clean unit (12), it is described
Clean unit (12) be connected directly with spray column (9).
10. fine coal fast pyrolysis systems according to claim 8, it is characterised in that：Further include tar storage tank (11), it is described
Tar storage tank (11) is connected with oil water separator (10).
11. fine coal fast pyrolysis systems according to claim 1, it is characterised in that：Further include heat exchanger (13), it is described
Heat exchanger (13) is connected directly with down-flow fluidized bed using ECT fast pyrogenation stove (4).
12. fine coal fast pyrolysis systems according to claim 11, it is characterised in that：Further include coke quencher (14), it is described
Coke quencher (14) is connected directly with heat exchanger (13).
13. fine coal fast pyrolysis systems according to claim 1, it is characterised in that：Further include rotary kiln (1),
The rotary kiln (1) is connected directly with feed bin (2).
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| CN115851294B (en) * | 2022-12-22 | 2023-07-11 | 杭州热星科技有限公司 | Dustproof pyrolysis oil gas outlet anti-blocking self-cleaning device |
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