CN104726121B - Device for high humility shove charge coking coal humidifying technique - Google Patents
Device for high humility shove charge coking coal humidifying technique Download PDFInfo
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- CN104726121B CN104726121B CN201510123430.7A CN201510123430A CN104726121B CN 104726121 B CN104726121 B CN 104726121B CN 201510123430 A CN201510123430 A CN 201510123430A CN 104726121 B CN104726121 B CN 104726121B
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- 239000003245 coal Substances 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 48
- 238000004939 coking Methods 0.000 title claims abstract description 21
- 238000013016 damping Methods 0.000 claims abstract description 73
- 230000008569 process Effects 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 238000001035 drying Methods 0.000 claims description 13
- 239000003546 flue gas Substances 0.000 claims description 13
- 238000007599 discharging Methods 0.000 claims description 7
- 208000011580 syndromic disease Diseases 0.000 claims description 6
- 239000002918 waste heat Substances 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- VEMKTZHHVJILDY-UHFFFAOYSA-N resmethrin Chemical compound CC1(C)C(C=C(C)C)C1C(=O)OCC1=COC(CC=2C=CC=CC=2)=C1 VEMKTZHHVJILDY-UHFFFAOYSA-N 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 2
- 238000005243 fluidization Methods 0.000 description 12
- 239000003795 chemical substances by application Substances 0.000 description 8
- 238000012546 transfer Methods 0.000 description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 7
- 230000033228 biological regulation Effects 0.000 description 5
- 239000000571 coke Substances 0.000 description 5
- 229920006395 saturated elastomer Polymers 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000003750 conditioning effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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- Chemical & Material Sciences (AREA)
- Coke Industry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
Abstract
The invention discloses a kind of device for high humility shove charge coking coal humidifying technique, including fluidized bed type damping machine, hot damping module built in hot damping module and second fluidized bed formula built in first class bed is provided with fluidized bed type damping machine side by side, air preheater and first class blower fan have been sequentially connected in series outside hot damping module built in the first class bed, has formed the first process loops；The second fluidized air blower is in series with outside hot damping module built in the second fluidized bed formula, forms the second process loops；Connected between first process loops and the second process loops by adjustable overflow plate.The present invention uses frame structure, air preheater, fluidized bed type damping machine are modular combination, ensure that the installation and repairing of process unit is convenient, and can be according to production requirement, multiple modules are arbitrarily made with big process unit, only need a standby backup module to ensure the normal production of humidity controlling system, reduce the scale of the stand-by equipment of existing humidity controlling system.
Description
Technical field
The present invention relates to coking industry coking technology field, is used for high humility shove charge coking coal humidifying more particularly, to one kind
The device of technique.
Background technology
Coal humidifying technology (CMC) refers to " control of coking coal charge moisture " technique, and it is the base in coking with dry coal technology
Grow up on plinth, general principle is to be thermally dried coal for coking using outer heat before shove charge, be dehydrated, and reaches coal
Moisture regulation and control, according to the requirement of current coke making process moisture in coal control 6% or so, coking is reduced so as to realize
The energy input of journey, the amount of allocating for ensureing coke oven operation operational stability, improving coke quality or increasing weak caking coal, reduce refining
The purpose of burnt sewage quantity.Meanwhile the water capacity of shove charge coking coal reduces, and the heap increase in density of coal, accordingly improves coke output.
With the development of China's coal conditioning technique, existing a variety of coal conditioning technique schemes, it is main include using low-pressure steam as
The multitube rotary formula of heat carrier is dry and using flue gases of cock oven as fluidized bed drying scheme of heat carrier etc..By operative practice
Test, existing coal humidifying technology device is there is some defects, using low-pressure steam as heat carrier, it is necessary to vapour source, profit
With high-grade energy.Also have by the use of flue gases of cock oven as heat carrier, but need high-temperature flue gas long distance delivery, Wind Volume
High-temperature blower energy consumption and flue gas heat loss are larger, and flue gas flow is limited, and thermal capacity is relatively low, and adjustability is poor.Secondly, it is domestic
Numerous independent coal chemical enterprise coke oven thermals source uses coke-stove gas, and caused flue gas moisture is high, and therefore, flue is airborne wet
Ability is low, influences damping efficiency.Such scheme except exist high energy consumption, regulating power are low, infrastructure investment is big, operating cost is high,
Control to adjust the problems such as complicated and maintenance and repair amount is big.When coal charge moisture content is too high, many coal damping drying devices by shadow
Ring, have a strong impact on the effect and efficiency of coal humidifying technology.
The content of the invention
The present invention dries problem to solve the damping of current China some areas high humility coal for coking, is provided for this
A kind of device for high humility shove charge coking coal humidifying technique, including fluidized bed type damping machine, in fluidized bed type damping machine
Centre position be provided with hot damping module 4 built in hot damping module 18 and second fluidized bed formula built in first class bed side by side,
The top of hot damping module built in two groups of fluidized bed types is fluidized drying area 3, and the top in fluidized drying area 3 is reduction fluidising air velocity
Provided with exhaust space, the decanting zone 2 of dust is formed；The lower section of hot damping module 18 built in first class bed is the first cloth wind
Area 6, the lower section of hot damping module 4 built in second fluidized bed formula are the second wind region 7；Heat is adjusted built in the first class bed
Air preheater 11 and first class blower fan 8 have been sequentially connected in series outside wet module 18, has formed the first process loops；Second fluidisation
The second fluidized air blower 9 is in series with outside hot damping module 4 built in bed, forms the second process loops；First process loops and second
Being connected between process loops by adjustable overflow plate 19, coal charge flow is arranged for crossfire, the coal charge that the first process loops come out,
Second process loops are entered directly into by adjustable overflow plate 19.
The present invention is used for the device of high humility shove charge coking coal humidifying technique, in hot damping module built in first class bed
18 and first between wind region 6, air distribution plate is equipped between the hot wind region 7 of damping module 4 and second built in second fluidized bed formula
5。
The present invention is used for the device of high humility shove charge coking coal humidifying technique, and the top of the fluidized bed type damping machine is provided with
Feeding mouth 1 and exhaust outlet 17, reheater 16 is provided with exhaust outlet 17；Discharging opening is provided with the side of fluidized bed type damping machine
15, controlling baffle plate is provided with discharging opening 15, to control the height of fluidized coal beds.
The present invention is used for the device of high humility shove charge coking coal humidifying technique, built in two groups of fluidized bed types in hot damping module
Arrange coil heat exchanger top to link up with provided with pulley, pulley hook is connected with damping machine outer framework；Coil heat exchanger
Mainly it is made up of light pipe tube bank, restrains and be staggered in arrangement in level, thermal medium is high-temperature-hot-water in pipe.
The present invention is used for the device of high humility shove charge coking coal humidifying technique, the contour structures chi of the air preheater 11
Very little hot damping module built in fluidized bed type is identical, and inside arranges fin tube heat exchanger, and heat transferring medium is high-temperature-hot-water.
Coil heat exchanger is arranged in hot damping module built in above-mentioned two groups of fluidized bed types, using saturated hot-water as heat exchanger
Heat carrier, using air as fluid bed fluidizing agent.The main heating source of saturated hot-water heat source comes from flue gases of cock oven waste heat, when
When wet moisture content of coal is too high, during the more difficult fluidized drying of coal charge in fluidized bed type damping machine, using air preheater by fluidization air
Temperature is heated to 90 DEG C or so so that the fluidisation wind-warm syndrome in the first process loops improves, and volume wind speed improves so that hydrogenous coal
Material can preferably fluidize heat exchange, meet coal charge fluidized drying needs.The air preheater is used to heat fluidized wind, improves fluidisation
The volume wind speed and the wet ability of load of wind.
The present invention uses built-in heat exchanger fluidized drying method, using the heat transfer medium high-temperature-hot-water of high specific heat as wet coal
Dry damping and fluid bed fluidizing agent heat source, fluidizing agent institute calorific requirement is only 20% without internal heater, fluidized gas
For the scale of construction also than making fluidizing agent few 20%~30% or so using flue gas, fluidizing velocity is 0.5~1.3 m/s；Using pressure
0.4~0.6MPa, temperature are heat transfer medium of 120 DEG C~160 DEG C of the saturated hot-water as drier；Damping machine has higher
Load regulation range and high humility coal adaptability.
Wet coal in the fluidized bed type damping machine of the present invention is in 60 DEG C~80 DEG C of low heating-up temperature and 0.5~1.3 m/
S low fluidizing velocity fluidisation intensified heat transfer method, fluidized wind wind-warm syndrome can be according to the moisture of coal height, in normal temperature in the range of 90 DEG C
It is adjustable.Built-in heat exchanger and coal and the fluid effect and heat exchange efficiency of fluidization air are improved, meanwhile, it can be effectively prevented from
The danger of coal Volatile detonation in coal humidifying technology flow, low fluidizing velocity can prevent built-in heat exchanger tube bank with it is wet
Coal wears.
The damping ability of the present invention is adjusted under 6% situation from wet moisture content of coal content 14.0%, and thermal source is by flue gases of cock oven waste heat
There is provided, when wet moisture content of coal content is more than 14%, fluidized wind wind-warm syndrome can be adjusted by air preheater, to strengthen its fluidisation effect
Fruit and heat transfer efficiency.
The beneficial effects of the invention are as follows：
1. process unit is simple in construction, equipment compatibility is good, easy access is reliable；
2. damping controls to adjust reliable, flexible；
With thermal conduction study and hydrodynamics Basic Mechanism, heating working medium and the fluid bed fluidisation working medium of damping machine are respectively adopted
Two kinds of working medium.First, damping machine institute calorific requirement transfer capability is improved, second, ensureing fluidizing agent flow stability and its wet energy of load
Power.The heat that coal dries needed for damping is provided by flue gases of cock oven waste heat completely, is turned the heat of flue gas using hot water preheater
Saturated hot-water is changed to, improves the thermal capacity of heating medium, improves heat transfer efficiency.Wind-warm syndrome is adjusted by air preheater,
Fan delivery is adjusted by converter plant, can keep the flow velocity of fluidizing agent and the stabilization of wind-warm syndrome.Therefore, internal heat type damping
Machine is with wet coal using fluidisation heat transfer type is strengthened, and its heat-transfer effect is good, and regulation heat supply balance is convenient, regulation is swift in response, spirit
It is living.
3. save electric energy
The present invention uses air as fluidizing agent, simply plays coal charge fluidization and carries wet function so that fluidisation is empty
Tolerance only uses flow 1/6th or so of the flue gas as fluidizing agent, and is in low temperature low speed operating condition, drops
The low energy consumption of air-blaster.According to same scale coal damping Capability Measurement, built-in fluidized hot bed damping machine and similar fluidisation
Bed drying machine reduces operating cost compared to that can economize on electricity 30%~40%.
4. a kind of device for high humility shove charge coking coal humidifying technique of the invention uses frame structure, air preheat
Device, fluidized bed type damping machine are modular combination, ensure that the installation and repairing of process unit is convenient, and can be wanted according to production
Ask, multiple modularizations can also be combined big process unit system, only need a standby backup module to ensure damping
The normal production of system, reduce the scale of the stand-by equipment of existing humidity controlling system.
5. the operating condition regulating system of the present invention is simple, using saturated hot-water as thermophore, the heat of heat exchanging device
Regulation is swift in response.
Brief description of the drawings
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein：
Fig. 1 is the schematic diagram of the present invention；
In figure：1st, feeding mouth；2nd, decanting zone；3rd, fluidized drying area；4th, hot damping module built in second fluidized bed formula；5th, cloth
Aerofoil；6th, the first air compartment；7th, the second air compartment；8th, first class blower fan；9th, the second fluidized air blower；10th, cool air inlet；
11st, air preheater；12nd, hot water inlet；13rd, hot water outlet；14th, air；15th, discharging opening；16th, reheater；17th, exhaust outlet；
18th, hot damping module built in first class bed；19th, adjustable overflow plate.
Embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive
Feature and/or step beyond, can combine in any way.
Any feature disclosed in this specification, unless specifically stated otherwise, can be equivalent by other or with similar purpose
Alternative features are replaced.I.e., unless specifically stated otherwise, each feature is an example in a series of equivalent or similar characteristics
.
Device for high humility shove charge coking coal humidifying technique as shown in Figure 1, including fluidized bed type damping machine, are flowing
Change centre position in bed damping machine to be provided with side by side built in hot damping module 18 and second fluidized bed formula built in first class bed
Hot damping module 4, the top of hot damping module is fluidized drying area 3 built in two groups of fluidized bed types, and the top in fluidized drying area 3 is set
There is certain exhaust space, to reduce fluidising air velocity, form the decanting zone 2 of dust so that coal particle in fluidized wind sinks naturally
Drop.The lower section of hot damping module 18 built in first class bed is the first wind region 6, hot damping module built in second fluidized bed formula
4 lower section is the second wind region 7.An air distribution plate 5 is being equipped with built in fluidized bed type between hot damping module and wind region.It is described
The top of fluidized bed type damping machine is provided with feeding mouth 1 and exhaust outlet 17, and reheater 16 is provided with exhaust outlet 17；In fluidized bed type
The side of damping machine is provided with discharging opening 15, controlling baffle plate is provided with discharging opening 15, to control the height of fluidized coal beds.
Air preheater 11 and first-class wind transmission have been sequentially connected in series outside hot damping module 18 built in the first class bed
Machine 8, the first process loops are formed, air preheater is used to heat fluidized wind, improves the volume wind speed of fluidized wind and carries wet ability.
The second fluidized air blower 9 is in series with outside hot damping module 4 built in the second fluidized bed formula, forms the second process loops；First work
Connected between skill loop and the second process loops by adjustable overflow plate 19, coal charge flow is arranged for crossfire, and the first technique is returned
The coal charge that road comes out, the second process loops are entered directly into by adjustable overflow plate 19.
Coil heat exchanger top is arranged built in two groups of fluidized bed types in hot damping module to link up with provided with pulley, pulley
Hook is connected with damping machine outer framework；Coil heat exchanger is mainly made up of light pipe tube bank, is restrained and is staggered in arrangement in level, in pipe
Thermal medium is high-temperature-hot-water.It is interior and the contour structure size of air preheater 11 is identical with hot damping module built in fluidized bed type
Portion arranges fin tube heat exchanger, and heat transferring medium is high-temperature-hot-water.
The invention is not limited in foregoing embodiment.The present invention, which expands to, any in this manual to be disclosed
New feature or any new combination, and disclose any new method or process the step of or any new combination.
Claims (2)
1. a kind of device for high humility shove charge coking coal humidifying technique, it is characterized in that：Including fluidized bed type damping machine, flowing
The centre position changed in bed damping machine is provided with hot damping module built in first class bed side by side（18）With second fluidized bed formula
Built-in hot damping module（4）, the top of hot damping module built in two groups of fluidized bed types is fluidized drying area（3）, fluidized drying area
（3）Top for reduce fluidising air velocity be provided with exhaust space, form the decanting zone of dust（2）；Heat is adjusted built in first class bed
Wet module（18）Lower section be the first wind region（6）, hot damping module built in second fluidized bed formula（4）Lower section be the second cloth wind
Area（7）；Hot damping module built in the first class bed（18）Air preheater has been sequentially connected in series it outside（11）And first class
Blower fan（8）, form the first process loops；Hot damping module built in the second fluidized bed formula（4）It is in series with the second fluidized wind outside
Machine（9）, form the second process loops；Pass through adjustable overflow plate between first process loops and the second process loops（19）Even
Connect, coal charge flow is arranged for crossfire, the coal charge that the first process loops come out, passes through adjustable overflow plate（19）Enter directly into
Two process loops, make low heating-up temperature that wet coal in fluidized bed type damping machine is in 60 DEG C~80 DEG C and 0.5~1.3 m/s
Low fluidizing velocity, in hot damping module built in first class bed（18）With the first wind region（6）Between, in second fluidized bed formula
Put hot damping module（4）With the second wind region（7）Between be equipped with air distribution plate（5）, set at the top of the fluidized bed type damping machine
There is feeding mouth（1）And exhaust outlet（17）, in exhaust outlet（17）It is interior to be provided with reheater（16）；In the side of fluidized bed type damping machine
Provided with discharging opening（15）, discharging opening（15）Place is provided with controlling baffle plate, and to control the height of fluidized coal beds, fan delivery passes through frequency conversion
Device is adjusted；Coil heat exchanger top is arranged built in two groups of fluidized bed types in hot damping module to link up with provided with pulley,
Pulley hook is connected with damping machine outer framework；Coil heat exchanger is mainly made up of light pipe tube bank, is restrained and is staggered in arrangement in level,
Thermal medium is high-temperature-hot-water in pipe；Wet moisture content of coal content 14.0% is adjusted under 6% situation, and thermal source is provided by flue gases of cock oven waste heat,
When wet moisture content of coal content is more than 14%, pass through air preheater（11）Adjust fluidized wind wind-warm syndrome.
2. the device according to claim 1 for high humility shove charge coking coal humidifying technique, it is characterized in that：The air
Preheater（11）Contour structure size it is identical with hot damping module built in fluidized bed type, inside arranges fin tube heat exchanger,
Heat transferring medium is high-temperature-hot-water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510123430.7A CN104726121B (en) | 2015-03-20 | 2015-03-20 | Device for high humility shove charge coking coal humidifying technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510123430.7A CN104726121B (en) | 2015-03-20 | 2015-03-20 | Device for high humility shove charge coking coal humidifying technique |
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| Publication Number | Publication Date |
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| CN104726121A CN104726121A (en) | 2015-06-24 |
| CN104726121B true CN104726121B (en) | 2018-04-10 |
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| CN201510123430.7A Expired - Fee Related CN104726121B (en) | 2015-03-20 | 2015-03-20 | Device for high humility shove charge coking coal humidifying technique |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105647557B (en) * | 2016-03-16 | 2019-03-19 | 无锡亿恩科技股份有限公司 | Device for coking coal stage drying step humidifying technology |
| CN105733635B (en) * | 2016-04-14 | 2019-03-26 | 无锡亿恩科技股份有限公司 | Clean and effective step sieves built-in fluidized hot bed coal humidifying technology |
| CN105907413B (en) * | 2016-05-04 | 2018-12-07 | 无锡亿恩科技股份有限公司 | The low temperature distillation technique of low order fine coal |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10287882A (en) * | 1997-04-11 | 1998-10-27 | Nippon Steel Chem Co Ltd | Previous treatment of raw coal for coke production and production of coke |
| JPH11263981A (en) * | 1998-03-16 | 1999-09-28 | Nippon Steel Corp | Drying and classifying device for raw material coal for coke oven |
| CN102492447B (en) * | 2011-12-17 | 2013-12-18 | 无锡亿恩科技股份有限公司 | Coking coal damping process for internal-heating type forced heat transferring fluidized bed |
| CN102533302A (en) * | 2012-02-06 | 2012-07-04 | 无锡亿恩科技股份有限公司 | Internal heating type dryer for in-furnace coking coal dehumidification |
| CN102585867B (en) * | 2012-03-08 | 2014-08-13 | 无锡亿恩科技股份有限公司 | System for conditioning through coking charge coal humidity difference |
| CN102676193A (en) * | 2012-05-11 | 2012-09-19 | 无锡亿恩科技股份有限公司 | Humidifying process for high-moisture charged coking coal |
| CN204474585U (en) * | 2015-03-20 | 2015-07-15 | 无锡亿恩科技股份有限公司 | For the device of high humidity shove charge coking coal humidifying technique |
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- 2015-03-20 CN CN201510123430.7A patent/CN104726121B/en not_active Expired - Fee Related
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