CN109593533A - A kind of dry quenching system and method - Google Patents
A kind of dry quenching system and method Download PDFInfo
- Publication number
- CN109593533A CN109593533A CN201910093367.5A CN201910093367A CN109593533A CN 109593533 A CN109593533 A CN 109593533A CN 201910093367 A CN201910093367 A CN 201910093367A CN 109593533 A CN109593533 A CN 109593533A
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- China
- Prior art keywords
- quenching
- cyclone cylinder
- semicoke
- preheating
- coke
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- 238000010791 quenching Methods 0.000 title claims abstract description 150
- 230000000171 quenching effect Effects 0.000 title claims abstract description 150
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000000571 coke Substances 0.000 claims abstract description 69
- 239000003245 coal Substances 0.000 claims abstract description 37
- 230000008676 import Effects 0.000 claims abstract description 37
- 239000002817 coal dust Substances 0.000 claims abstract description 32
- 239000007789 gas Substances 0.000 claims description 70
- 239000011261 inert gas Substances 0.000 claims description 38
- 238000000926 separation method Methods 0.000 claims description 26
- 239000007787 solid Substances 0.000 claims description 20
- 239000000843 powder Substances 0.000 claims description 6
- 239000002994 raw material Substances 0.000 abstract description 4
- 239000006227 byproduct Substances 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 description 5
- 238000004064 recycling Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- -1 meanwhile Substances 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- C10B39/00—Cooling or quenching coke
- C10B39/02—Dry cooling outside the oven
Abstract
The present invention provides a kind of dry quenching system and method, including hot half coke bin, coke quenching device, cold half coke bin, cold coal bunker, preheating device and hot coal storehouse；The semicoke import of the discharge port and coke quenching device of hot half coke bin connects, and the semicoke outlet of coke quenching device is connect with the feed inlet of cold half coke bin；The coal dust import of the discharge port and preheating device of cold coal bunker connects, and the discharge of preheating device is connect with the feed inlet in hot coal storehouse；The gas feed of the gas vent and preheating device of coke quenching device connects, and the gas feed of the gas vent and coke quenching device of preheating device connects；Coke quenching device and preheating device are all made of cyclone cylinder, and the semicoke import of coke quenching device is overlapped setting with the gas feed of coke quenching device, and the coal dust import of preheating device is overlapped setting with gas feed.The heat of hot semicoke is exchanged and gives raw material coal dust by the present invention, so that heat passes to raw material by product, has recycled sensible heat, reduces the energy consumption of system.
Description
Technical field
The present invention relates to coal chemical technology more particularly to a kind of dry quenching systems and method.
Background technique
The burnt type of cooling mainly includes dry type and wet method.Wherein wet method has waste water generation to will cause a large amount of dirts
Dye.Heat produced by dry cooling can be used to producing steam, but in current dry cooling, temperature is not after gas converting heat
It is very high, it is difficult with, is typically wasted without recycling.
With the continuous development of pyrolytic technique, the research cooling about semicoke is also more and more, and efficiently cooling recycling is
Influence one of the principal element of pyrolysis of coal Technical Economy.
Summary of the invention
Aiming at the problems existing in the prior art, the present invention provides a kind of dry quenching system and method, more efficient benefit
Use sensible heat.
The present invention is to be achieved through the following technical solutions:
A kind of dry quenching system, including hot half coke bin, coke quenching device, cold half coke bin, cold coal bunker, preheating device and hot coal
Storehouse；
The semicoke import of the discharge port and coke quenching device of hot half coke bin connects, semicoke outlet and cold half coke bin of coke quenching device
Feed inlet connection；
The coal dust import of the discharge port of cold coal bunker and preheating device connects, the discharge of preheating device and hot coal storehouse into
Material mouth connection；
The gas feed of the gas vent and preheating device of coke quenching device connects, and the gas vent of preheating device and quenching fill
The gas feed connection set；
Coke quenching device and preheating device are all made of cyclone cylinder, the semicoke import of coke quenching device and the gas feed of coke quenching device
It is overlapped setting, the coal dust import of preheating device is overlapped setting with gas feed.
Preferably, the gas feed coincidence distance of the semicoke import of coke quenching device and coke quenching device is more than or equal to 50cm.
Preferably, the coal dust import of preheating device and gas feed coincidence distance are more than or equal to 50cm.
Preferably, coke quenching device includes the first quenching cyclone cylinder, the second quenching cyclone cylinder and third quenching cyclone cylinder, heat half
The discharge port of coke bin is connect with the semicoke import of the first quenching cyclone cylinder, semicoke outlet and the second quenching of the first quenching cyclone cylinder
The semicoke import of cyclone cylinder connects, and the semicoke outlet of the second quenching cyclone cylinder is connect with the semicoke import of third quenching cyclone cylinder,
The semicoke outlet of third quenching cyclone cylinder is connect with the semicoke import of cold half coke bin；The gas vent of third quenching cyclone cylinder and
The gas feed of two quenching cyclone cylinders connects, the gas feed of the gas vent of the second quenching cyclone cylinder and the first quenching cyclone cylinder
Connection.
Preferably, preheating device includes the first preheating cyclone cylinder and the second preheating cyclone cylinder；The discharge port of cold coal bunker and
The coal dust import connection of one preheating cyclone cylinder, the coal dust import of the discharge of the first preheating cyclone cylinder and the second preheating cyclone cylinder
The discharge of connection, the second preheating cyclone cylinder is connect with the feed inlet in hot coal storehouse；Second preheating cyclone cylinder gas vent with
The gas feed connection of first preheating cyclone cylinder.
A kind of dry quenching method, based on the dry quenching system, after circulated inert gas and hot semicoke mixed heat transfer
Gas solid separation is carried out in coke quenching device, carries out gas in preheating device after the circulated inert gas after separation and cold coal dust mixed heat transfer
Gu separation, the circulated inert gas after separation carries out mixed heat transfer with hot semicoke again, is thusly-formed circulation.
Preferably, coke quenching device includes the first quenching cyclone cylinder, the second quenching cyclone cylinder and third quenching cyclone cylinder；Preheating
Device includes the first preheating cyclone cylinder and the second preheating cyclone cylinder；The hot semicoke of hot half coke bin exports lazy with the second quenching cyclone cylinder
Property gas mixing heat exchange after the completion of enter the first quenching cyclone cylinder carry out gas solid separation；
Enter after the completion of first quenching cyclone cylinder blanking semicoke and third quenching cyclone cylinder outlet inert gas mixed heat transfer
Second quenching cyclone cylinder carries out gas solid separation；
Enter third quenching cyclone cylinder after the completion of second quenching cyclone cylinder blanking semicoke and circulated inert gas mixed heat transfer
Gas solid separation is carried out, third quenching cyclone cylinder blanking semicoke is that cold semicoke enters cold half coke bin；
Enter the first preheating after the completion of the cold coal dust of cold coal bunker and the second preheating cyclone cylinder outlet inert gas mixed heat transfer
Cyclone cylinder carries out gas solid separation；
Enter after the completion of first preheating cyclone cylinder blanking semicoke and the first quenching cyclone cylinder outlet inert gas mixed heat transfer
Second preheating cyclone cylinder carries out gas solid separation, and the second preheating cyclone cylinder blanking coal dust enters hot coal storehouse.
Preferably, hot semicoke temperature is 450 DEG C -550 DEG C, and cold semicoke temperature is 40 DEG C -80 DEG C.
Preferably, cold coal dust temperature is room temperature, and hot coal powder temperature is 105 DEG C -150 DEG C.
Compared with prior art, the invention has the following beneficial technical effects:
The present invention is pyrolyzed the hot semicoke generated and is cooled down by dry coke quenching, and heat is exchanged to circulated inert gas, meanwhile,
Raw material coal dust needed for being pyrolyzed is heated by circulated inert gas, so that heat passes to raw material by product, has recycled sensible heat,
Reduce the energy consumption of system.Solid and gas carry out hybrid heat exchange in the duct, directly exchange heat, and heat damage is effectively reduced
It loses, improves system energy efficiency.Meanwhile gas solid separation is carried out using cyclone cylinder, equipment cost is low.Circulated inert gas is situated between as circulation
Matter recycling, reduces production cost.Dry coke quenching is generated without waste water, the cost for wastewater treatment greatly reduced, and environment-friendly advantage is bright
It is aobvious；Semicoke water content is effectively reduced, and quality is more preferable.Used equipment is static equipment, small investment, good reliability.
Further, the coincidence distance of suitable semicoke import and gas feed is set, hot semicoke and circulation indifferent gas are made
Body carries out abundant heat exchange.
Further, the coincidence distance of suitable coal dust import and gas feed is set, coal dust and circulated inert gas are made
Carry out abundant heat exchange.
Further, coke quenching device carries out heat exchange separation, and gas and semicoke counterflow heat exchange, energy using three-level cyclone cylinder
Improve heat exchange efficiency.
Further, preheating device carries out heat exchange separation, and gas and coal dust counterflow heat exchange, heat exchange using two stage cyclone cylinder
It is high-efficient.
Detailed description of the invention
Fig. 1 is dry quenching system flow diagram of the present invention；
In figure, 13- half coke bin of heat, 14- the first quenching cyclone cylinder, 15- the second quenching cyclone cylinder, 16- third quenching whirlwind
Cylinder, cold half coke bin of 17-, the cold coal bunker of 18-, 19- first preheat cyclone cylinder, and 20- second preheats cyclone cylinder, 21- hot coal storehouse, 1- heat half
Coke, 2- the second quenching cyclone cylinder export inert gas, and 3- the first quenching cyclone cylinder exports inert gas, 4- the first quenching cyclone cylinder
Blanking semicoke, 5- third quenching cyclone cylinder export inert gas, 6- the second quenching cyclone cylinder blanking semicoke, and 7- recycles indifferent gas
Body, 8- third quenching cyclone cylinder blanking semicoke, the cold coal dust of 9-, 10- second preheat cyclone cylinder and export inert gas, and 11- first is pre-
Hot cyclone cylinder blanking coal dust, 12- hot coal powder.
Specific embodiment
Below with reference to specific embodiment, the present invention is described in further detail, it is described be explanation of the invention and
It is not to limit.
As shown in Figure 1, dry quenching system of the present invention, including hot half coke bin 13, coke quenching device, cold half coke bin 17,
Cold coal bunker 18, preheating device and hot coal storehouse 21.
Coke quenching device includes the first quenching cyclone cylinder 14, the second quenching cyclone cylinder 15 and third quenching cyclone cylinder 16, heat half
The discharge port of coke bin 13 is connect with the semicoke import of the first quenching cyclone cylinder 14, the semicoke of the first quenching cyclone cylinder 14 outlet and the
The semicoke import of two quenching cyclone cylinders 15 connects, the semicoke outlet of the second quenching cyclone cylinder 15 and the half of third quenching cyclone cylinder 16
The semicoke outlet of burnt import connection, third quenching cyclone cylinder 16 is connect with cold half coke bin, 17 feed inlet.Third quenching cyclone cylinder 16
Gas vent connect with the gas feed of the second quenching cyclone cylinder 15, the gas vent of the second quenching cyclone cylinder 15 is put out with first
The gas feed of burnt cyclone cylinder 14 connects.The semicoke import of quenching cyclone cylinder is overlapped with corresponding gas feed to be arranged, and is overlapped
Distance is more than or equal to 50cm.
Preheating device includes the first preheating cyclone cylinder 19 and the second preheating cyclone cylinder 20, the discharge port and first of cold coal bunker 18
Preheat the coal dust import connection of cyclone cylinder 19, the coal dust of the discharge of the first preheating cyclone cylinder 19 and the second preheating cyclone cylinder 20
The discharge of import connection, the second preheating cyclone cylinder 20 is connect with the feed inlet in hot coal storehouse 21.First quenching cyclone cylinder 14
Gas vent is connect with the gas feed of the second preheating cyclone cylinder 20, the gas vent of the second preheating cyclone cylinder 20 and the first preheating
The gas feed of cyclone cylinder 19 connects, and the gas vent of the first preheating cyclone cylinder 19 and the feed inlet of third quenching cyclone cylinder 16 connect
It connects.The coal dust import for preheating cyclone cylinder is overlapped with corresponding gas feed to be arranged, and coincidence distance is more than or equal to 50cm.
The coke quenching method of dry quenching system of the present invention are as follows:
The hot semicoke 1 of hot half coke bin 13 and the second quenching cyclone cylinder outlet 2 mixed heat transfer of inert gas enter the after the completion
One quenching cyclone cylinder 14 carries out gas solid separation, and it is hot inert gas, the first quenching rotation that the first quenching cyclone cylinder, which exports inert gas 3,
Air duct blanking semicoke 4 is time hot semicoke；
First quenching cyclone cylinder blanking semicoke 4 is completed laggard with third quenching cyclone cylinder outlet 5 mixed heat transfer of inert gas
Entering the second quenching cyclone cylinder 15 and carries out gas solid separation, it is time hot inert gas that the second quenching cyclone cylinder, which exports inert gas 2, second
Quenching cyclone cylinder blanking semicoke 6 is time time hot semicoke；
Enter third quenching whirlwind after the completion of second quenching cyclone cylinder blanking semicoke 6 and 7 mixed heat transfer of circulated inert gas
Cylinder 16 carries out gas solid separation, and third quenching cyclone cylinder exports inert gas 5 for time time hot inert gas, under third quenching cyclone cylinder
Expect that semicoke 8 is that cold semicoke enters cold half coke bin 17；
Enter first after the completion of the cold coal dust 9 of cold coal bunker 18 and the second preheating cyclone cylinder outlet 10 mixed heat transfer of inert gas
It preheats cyclone cylinder 19 and carries out gas solid separation, the first preheating cyclone cylinder exports inert gas, that is, circulated inert gas 7, the first preheating rotation
Air duct blanking semicoke 11 is time hot coal powder；
First preheating cyclone cylinder blanking semicoke 11 is completed laggard with the first quenching cyclone cylinder outlet 3 mixed heat transfer of inert gas
Entering the second preheating cyclone cylinder 20 and carries out gas solid separation, the second preheating cyclone cylinder outlet inert gas 10 is time hot inert gas, the
Two preheating 20 blanking coal dusts of cyclone cylinder are that hot coal powder enters hot coal storehouse 21.
Wherein, hot 1 temperature of semicoke is 450 DEG C -550 DEG C, and cold 8 temperature of semicoke is 40 DEG C -80 DEG C, and cold 9 temperature of coal dust is room
Temperature, 12 temperature of hot coal powder are 105 DEG C -150 DEG C.
Coke quenching device and preheating device quantity are unlimited in entire scheme, are determined according to hot material and cold burden temperature, inert gas
Other process gas are equally readily modified as, can be used determines according to actual conditions.
Claims (9)
1. a kind of dry quenching system, which is characterized in that including hot half coke bin (13), coke quenching device, cold half coke bin (17), cold coal bunker
(18), preheating device and hot coal storehouse (21)；
The semicoke import of the discharge port and coke quenching device of hot half coke bin (13) connects, semicoke outlet and cold half coke bin of coke quenching device
(17) feed inlet connection；
The coal dust import of the discharge port and preheating device of cold coal bunker (18) connects, the discharge of preheating device and hot coal storehouse (21)
Feed inlet connection；
The gas feed of the gas vent of coke quenching device and preheating device connects, the gas vent of preheating device and coke quenching device
Gas feed connection；
Coke quenching device and preheating device are all made of cyclone cylinder, and the semicoke import of coke quenching device is overlapped with the gas feed of coke quenching device
Setting, the coal dust import of preheating device are overlapped setting with gas feed.
2. dry quenching system according to claim 1, which is characterized in that the semicoke import of coke quenching device and coke quenching device
Gas feed coincidence distance is more than or equal to 50cm.
3. dry quenching system according to claim 1, which is characterized in that the coal dust import of preheating device and gas feed weight
It closes distance and is more than or equal to 50cm.
4. dry quenching system according to claim 1, which is characterized in that coke quenching device includes the first quenching cyclone cylinder
(14), the second quenching cyclone cylinder (15) and third quenching cyclone cylinder (16), the discharge port of hot half coke bin (13) and the first quenching are revolved
The semicoke import of air duct (14) connects, the semicoke of the semicoke outlet and the second quenching cyclone cylinder (15) of the first quenching cyclone cylinder (14)
The semicoke outlet of import connection, the second quenching cyclone cylinder (15) is connect with the semicoke import of third quenching cyclone cylinder (16), third
The semicoke outlet of quenching cyclone cylinder (16) is connect with the semicoke import of cold half coke bin (17)；The gas of third quenching cyclone cylinder (16)
Outlet is connect with the gas feed of the second quenching cyclone cylinder (15), the gas vent of the second quenching cyclone cylinder (15) and the first quenching
The gas feed of cyclone cylinder (14) connects.
5. dry quenching system according to claim 1, which is characterized in that preheating device includes the first preheating cyclone cylinder (19)
With the second preheating cyclone cylinder (20)；The discharge port of cold coal bunker (18) is connect with the coal dust import of the first preheating cyclone cylinder (19), the
The discharge of one preheating cyclone cylinder (19) is connect with the coal dust import of the second preheating cyclone cylinder (20), the second preheating cyclone cylinder
(20) discharge is connect with the feed inlet of hot coal storehouse (21)；The gas vent of second preheating cyclone cylinder (20) and the first preheating
The gas feed of cyclone cylinder (19) connects.
6. a kind of dry quenching method, which is characterized in that be based on the described in any item dry quenching systems of claim 1-3, recycle lazy
Property gas and hot semicoke mixed heat transfer after gas solid separation is carried out in coke quenching device, the circulated inert gas after separation and cold coal dust
Gas solid separation is carried out in preheating device after mixed heat transfer, the circulated inert gas after separation carries out mixed heat transfer with hot semicoke again,
It is thusly-formed circulation.
7. dry quenching method according to claim 6, which is characterized in that coke quenching device includes the first quenching cyclone cylinder
(14), the second quenching cyclone cylinder (15) and third quenching cyclone cylinder (16)；Preheating device include first preheating cyclone cylinder (19) and
Second preheating cyclone cylinder (20)；The hot semicoke (1) of hot half coke bin (13) is mixed with the second quenching cyclone cylinder outlet inert gas (2)
Enter the first quenching cyclone cylinder (14) after the completion of heat exchange and carries out gas solid separation；
First quenching cyclone cylinder blanking semicoke (4) is completed laggard with third quenching cyclone cylinder outlet inert gas (5) mixed heat transfer
Enter the second quenching cyclone cylinder (15) and carries out gas solid separation；
Enter third quenching whirlwind after the completion of second quenching cyclone cylinder blanking semicoke (6) and circulated inert gas (7) mixed heat transfer
Cylinder (16) carries out gas solid separation, and third quenching cyclone cylinder blanking semicoke (8) is that cold semicoke enters cold half coke bin (17)；
Enter the after the completion of the cold coal dust (9) of cold coal bunker (18) and second preheating cyclone cylinder outlet inert gas (10) mixed heat transfer
One preheating cyclone cylinder (19) carries out gas solid separation；
First preheating cyclone cylinder blanking semicoke (11) is completed laggard with the first quenching cyclone cylinder outlet inert gas (3) mixed heat transfer
Enter the second preheating cyclone cylinder (20) and carry out gas solid separation, second preheating cyclone cylinder (20) blanking coal dust enters hot coal storehouse (21).
8. dry quenching method according to claim 6, which is characterized in that hot semicoke (1) temperature is 450 DEG C -550 DEG C, cold
Semicoke (8) temperature is 40 DEG C -80 DEG C.
9. dry quenching method according to claim 6, which is characterized in that cold coal dust (9) temperature is room temperature, hot coal powder (12)
Temperature is 105 DEG C -150 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910093367.5A CN109593533A (en) | 2019-01-30 | 2019-01-30 | A kind of dry quenching system and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910093367.5A CN109593533A (en) | 2019-01-30 | 2019-01-30 | A kind of dry quenching system and method |
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Family
ID=65967012
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4270980A (en) * | 1978-05-26 | 1981-06-02 | Nippon Kokan Kabushiki Kaisha | Method for recovering and utilizing heat of coke-oven gas |
| CN103160293A (en) * | 2013-03-15 | 2013-06-19 | 北京神雾环境能源科技集团股份有限公司 | Coal carbonization multi-stage continuous coke dry quenching system and method |
| CN103421521A (en) * | 2013-08-07 | 2013-12-04 | 陕西煤业化工技术研究院有限责任公司 | Device and method for preparing pulverized coal with low energy consumption |
| CN103589442A (en) * | 2013-10-22 | 2014-02-19 | 长安大学 | External-heated and solid heat carrier combined rotary dry-distillation method and device |
| CN104152163A (en) * | 2014-08-01 | 2014-11-19 | 神华集团有限责任公司 | Crushed coal pyrolysis and coke dry quenching method and device |
| CN203999501U (en) * | 2014-05-22 | 2014-12-10 | 长安大学 | A kind of coal destructive distillation device |
| CN104312598A (en) * | 2014-10-30 | 2015-01-28 | 神华集团有限责任公司 | Semicoke producing system |
| CN209522806U (en) * | 2019-01-30 | 2019-10-22 | 陕西煤业化工技术研究院有限责任公司 | A kind of dry quenching system |
-
2019
- 2019-01-30 CN CN201910093367.5A patent/CN109593533A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4270980A (en) * | 1978-05-26 | 1981-06-02 | Nippon Kokan Kabushiki Kaisha | Method for recovering and utilizing heat of coke-oven gas |
| CN103160293A (en) * | 2013-03-15 | 2013-06-19 | 北京神雾环境能源科技集团股份有限公司 | Coal carbonization multi-stage continuous coke dry quenching system and method |
| CN103421521A (en) * | 2013-08-07 | 2013-12-04 | 陕西煤业化工技术研究院有限责任公司 | Device and method for preparing pulverized coal with low energy consumption |
| CN103589442A (en) * | 2013-10-22 | 2014-02-19 | 长安大学 | External-heated and solid heat carrier combined rotary dry-distillation method and device |
| CN203999501U (en) * | 2014-05-22 | 2014-12-10 | 长安大学 | A kind of coal destructive distillation device |
| CN104152163A (en) * | 2014-08-01 | 2014-11-19 | 神华集团有限责任公司 | Crushed coal pyrolysis and coke dry quenching method and device |
| CN104312598A (en) * | 2014-10-30 | 2015-01-28 | 神华集团有限责任公司 | Semicoke producing system |
| CN209522806U (en) * | 2019-01-30 | 2019-10-22 | 陕西煤业化工技术研究院有限责任公司 | A kind of dry quenching system |
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Address after: 710077 Shaanxi Coal Industry Chemical Group Co., Ltd. No. 2 Jinye Road, Xi'an High-tech Zone, Shaanxi Province Applicant after: Shaanxi Coal and Chemical Technology Institute Co., Ltd. Address before: Room 807, Jinling Building, 59 Aerospace Avenue, Chang'an District, Xi'an City, Shaanxi Province Applicant before: Shaanxi Coal and Chemical Technology Institute Co., Ltd. |