CN106566569A - Coal moisture control-based system for synchronously realizing dry quenching of coke and preparation of water gas - Google Patents
Coal moisture control-based system for synchronously realizing dry quenching of coke and preparation of water gas Download PDFInfo
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- CN106566569A CN106566569A CN201610969411.0A CN201610969411A CN106566569A CN 106566569 A CN106566569 A CN 106566569A CN 201610969411 A CN201610969411 A CN 201610969411A CN 106566569 A CN106566569 A CN 106566569A
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- coal
- coke
- dry quenching
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- 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
- 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
-
- 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
- C10B43/00—Preventing or removing incrustations
-
- 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
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
-
- 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
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/08—Non-mechanical pretreatment of the charge, e.g. desulfurization
- C10B57/10—Drying
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
-
- 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
- C10K1/026—Dust removal by centrifugal forces
-
- 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)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Materials Engineering (AREA)
- Coke Industry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
Abstract
The invention discloses a coal moisture control-based system for synchronously realizing the dry quenching of coke and the preparation of water gas. The system comprises the steps of a crusher, a classifying screen, a coal-coke batch hopper, a coke-moist coal rotary kiln, a coal-coke separating screen, a fluidized bed, a coke oven and a dry quenching furnace, wherein the above parts are sequentially connected. The code coke outlet of the dry quenching furnace is connected with the feeding port of the coal-coke batch hopper. The two discharge ports of the classifying screen are respectively connected with the coal-coke batch hopper and the feeding port of the crusher. The system is simple and can effectively recover the low-temperature waste heat and the by-product gas. The coking coal can be effectively dried, and the service life of equipment is prolonged. Meanwhile, the emission of smoke is greatly reduced and the system is friendly to the environment.
Description
Technical field
The present invention relates to a kind of coal chemical technology, specifically a kind of CDQ based on coal damping synchronously prepares water
Coal gas system.
Background technology
Coal conditioning technique be 2l beginning of the century coking coal resources and energy scarcity background under grow up, the technology is right
The further improvement of the coal drying process that the 1950's grows up, the difference being dried with coal is not pursue to greatest extent
Ground removes the moisture of as-fired coal, and only moisture stabilization in relatively low level, both can reach increases the purpose of benefit, but not because
Moisture it is too low and cause coke oven and recovery system operation difficulty.China's coal conditioning technique research and development start from the process nineties in last century
Tackle key problems for many years, grasped using steam for the steam-tube rotatory dryer coal conditioning technique of dried medium and using coke oven tail
Fluidized bed coal conditioning technique of the gas for dried medium.Wherein steam-tube rotatory dryer coal conditioning technique by day China chemical machinery and
Automation research designing institute and Taiyuan Iron and Steel Co. Group Co., Ltd develop jointly, and in Taiyuan Iron and Steel Co., Baosteel and climb steel application and take respectively
Obtained significant economic benefit.
For the coal chemical enterprise for producing 1000000 tons of coke per year, wet coal maximum processing capability is 180t/h, at ordinary times 160t/h.Coal
Damping master device intake condition：Exhaust gas flow 65000-70000m3/ h, 250 DEG C -260 DEG C of EGT empty exhaust gas and dust
Mass concentration≤50mg/m3。
It is 21kJ/kg that coal damping often reduces the heat consumption that 1% moisture can save.In addition coal charge moisture is reduced, can be with
Coking speed is improved, is shortened coking time, is improved coke quality.Moisture after the shove charge coal drying damping of aqueous 9%-11%
When being reduced to 5%-6.5%, the heap density of shove charge coal increases, and about improves 6.9%, and coking time about shortens 4%, two effects
Coke oven production capacity can be made to improve 11% or so.
Although energy-saving with the obvious advantage in coking after coal damping, there is it is cannot overcoming, restrict its popularization
The deficiency answered, has increased dust emission source newly.As a example by producing the coke-oven plant of 1,100,000 tons of coke per year, fine dust discharge capacity is increased newly about
40g/t- is burnt.Meanwhile, the moisture in coal is heated to form 70 DEG C of steam and arranges with outside flue gas, and heat content loss is big, is also easily caused cloth bag
Condensation, blocking.The fine dust (40g/t- is burnt) of discharge is the coal resource of high-quality in addition.
In addition, after coking operation dry coke quenching unit, due to circulated inert gas, in cyclic process, negative pressuren zone can be inhaled
Enter air, while when through coke dry quenching boiler, the boiler breakage failure such as leak or furnace roof water seal, emergency diffusion valve water seal leak
Unavoidably, in air moisture content and the moisture that leaks into burnt can occur water gas with red when the red focus layer with circulated inert gas
Reaction will also result in H in recyclegas2And CO contents are sharply increased, it is to ensure operation safety, need to supplies into gas-circulating system
Enter a certain amount of N2, or a certain amount of air is imported toward coke dry quenching furnace ring-shaped flue, and periodically go out part recyclegas, replacement amount
The 3-4% of the circulating air scale of construction is accounted for, new soot emissions source is formed, and is caused the energy dissipation of substantial amounts of combustible component.
The content of the invention
The invention aims to solve above-mentioned technical problem, there is provided more than a kind of simple system, energy efficient recovery low temperature
Heat, by-product gas, to coking coal efficient drying, extension device service life and soot emissions are greatly decreased, it is environment amenable
CDQ based on coal damping synchronously prepares water gas system.
Disintegrating machine that present system includes being sequentially connected, classifying screen, coal-Jiao's batch hopper, coke-wet coal rotary kiln, coal-
Coke bolter, fluid bed, coke oven and coke dry quenching furnace；The cold burnt outlet of the coke dry quenching furnace and the charging aperture of the coal-Jiao's batch hopper
Connection, two discharging openings of the classifying screen are connected with coal-Jiao's batch hopper and disintegrating machine feeding mouth respectively.
The coke dry quenching furnace has circulating gas import and circulating gas outlet, and the circulating gas of the coke dry quenching furnace are exported more than Jing
Heat boiler is connected with the dried medium import of fluid bed, and the dried medium of the fluid bed exports Jing expansion chambers or cyclone dust extractor
It is connected with the circulating gas import of coke dry quenching furnace；The circulating gas inlet connecting branch of the expansion chamber or cyclone dust extractor and coke dry quenching furnace
Residual gas outlet is additionally provided with road.
The flue gas discharge opening of the coke oven horizontal flue is connected with the dried medium import of coke-wet coal rotary kiln.
The dust outlet of the expansion chamber or cyclone dust extractor is connected with pressure ball system or blast furnace blowing coal-hole.
The gas outlet Jing of the burnt flue dust dust collection cover of dress and pressure ball system or blast furnace blowing coal-hole of the coke dry quenching furnace disappears detonation
Burner is connected with the dried medium import of coke-wet coal rotary kiln.
The fine powder dustiness that inventor is present to the pretreatment process and dry coke quenching operation of coking coal in existing coking production
Dye and the low technical problem of residual heat and energy utilization rate, before keeping existing coking Coal pretreatment and dry coke quenching main process constant
Put, made following improvement：(1) substitute original noble gases by the use of circulating gas to be situated between as the quenching of dry quenching system
Matter, while have also been changed the circulation route of circulating gas, the coking coal after going out the coal gas of dry quenching system to crushing is dried,
Main efficacy results have：A) combustible component (H for also containing in the dry quenching system circulated inert gas described in background technology2、CO、CH4
Deng) problem that is enriched with, as the creative combustible component water gas for emitting the need of manufacturing issue of inventor is used as quenching
Recyclegas, make original problem become just beneficial technique effect；B) due to changing the circulation road of circulating gas
Line, when circulating gas are dried in fluid bed, the moisture content that can be taken out of in coking coal, these moisture enter dry coke quenching with circulating gas
React to form water gas with red Jiao after system, so that circulating gas amount is on the basis of circulation route demand is met,
Surplus gas can also be produced as side-product extraction system, additional economic benefit is generated；C) the water coal occurred in coke dry quenching furnace
Solid/liquid/gas reactions process is an endothermic process, the cooling effect being also beneficial in dry quenching system；D) waste heat in circulating gas is obtained
To efficient recovery；By two steps to the energy recovery in circulating gas, loopback enters the temperature meeting of the circulating gas of dry quenching system
100 DEG C -110 DEG C are down to, so as to further increase the heat exchange efficiency of coke dry quenching furnace；E) circulating gas are sent into as fluidizing gas and are flowed
Coking coal after changing bed to crushing is dried, and the dusty gas removing dust Posterior circle for going out fluid bed enters dry quenching system, whole
Heat energy is fully reclaimed in individual cyclic process, there are no gas discharging after fluid bed, process cleans；F) through fluid bed drying from refining
The moisture containing certain heat content evaporated in coking coal, enters in coke dry quenching furnace with circulating gas, generates water coal with the burnt reactions of Jing
Gas is recycled, and the efficient recovery heat content of this part steam, complementary energy recovering effect are good.2) in order in effective control coking coal
Water content, inventor makes refining by controlling out the temperature of the circulating gas of waste heat boiler to improve the dry tenacity of fluid bed
The water content reduction by less than 3% that coking coal goes out in fluid bed, it is even lower.(3) when the water in circulating gas enters dry quenching system,
Can react with coke, according to gas-solid reaction mechanism, the fine coke breeze on coke surface can preferentially occur water gas reaction, i.e.,
The preferential fine dusts for consuming coke surface, so as to improve coke quality, reduce fine powder coke content, improve product product
Matter.(4) cold Jiao is introduced in rotary kiln and is mixed with coking coal, effect has three, a) coking coal is carried out directly using cold burnt waste heat
It is dried, cold burnt waste heat recovery efficiency high；B) using cold burnt granule it is high compared with coking coal intensity the characteristics of in rotary kiln to coking coal
Crushed；C) it is cold Jiao in coke powder adsorption ability it is stronger, its surface can absorbed portion coal dust, be conducive to improving coking coal
Performance, and then improve coke property；D) phase mutual friction in rotary kiln between coke button and coking coal, coke button and coke button and touch
Hit, the crackle of big lump coke is ftractureed in advance, the relatively low coke button of intensity comes off in advance, and the corner angle of coke button are denuded in advance, improve smelting
Golden burnt mechanical stability, and lumpiness is in the big lump coke reduction of more than 70mm, and the middle lump coke of 25～75mm accordingly increases, it is burnt
The uniformity of carbon block degree is improved.
Further, fill for furnace roof that burnt flue dust dustiness is big, temperature is high, the sensible heat that flue dust is carried fails efficient recovery profit
Problem, inventor by this part flue dust Jing sending into after the burnt dirt of quick-fried burner combustion oxygen depleted and part that disappears, and from
The coke oven flue gas of coke oven horizontal flue send into coke-wet coal rotary kiln together as dried medium so that this part of flue dust
Waste heat also obtains effective recycling, while under high humidity environment in kiln, can promote the solidifying of fine dust in dusty gas
It is poly-, be conducive to improving follow-up efficiency of dust collection, reduce the discharge of dust.
Present system is simple, the cold burnt temperature that reduces dry quenching system, reclaims cold burnt sensible heat about 0.1GJ/t- burnt more
More than, the cold burnt thermal etching to travelling belt is also accordingly slow down, along the life-span for having grown belt；Creative has used circulation coal
Gas replaces original noble gases, reduces the discharge of PM2.5, goes back by-product while more than further recovery waste heat 0.4GJ/t- Jiao
Coal gas, improves coke quality, environmentally friendly；The broken of coking coal is synchronously realized by coke-wet coal rotary kiln and is dried,
The drying effect and efficiency of coking coal are improve, coal water content is down to less than 3%, heat energy is dried from system hypothermia waste heat, is entered
One step it is energy-saving.
Description of the drawings
Fig. 1 is present system figure.
Wherein, 1- disintegrating machines, 2- classifying screens, 3- coals-Jiao's batch hopper, 4- coke-wet coal rotary kiln, 5- coals-coke is separated
Sieve, 6- fluid beds, 7- coke ovens, 8- coke dry quenching furnaces, 9- waste heat boilers, 10- disappear quick-fried combustor, 11- falling dust room or cyclone dust extractor,
12- pressure balls system or blast furnace blowing coal-hole, the outlet of 13- residual gas.
Specific embodiment
Explanation is further explained to present system below in conjunction with the accompanying drawings：
Disintegrating machine 1, classifying screen 2, coal-Jiao's batch hopper 3, coke-wet coal rotary kiln 4, coal-coke bolter 5, fluid bed 6,
Coke oven 7 and coke dry quenching furnace 8 are sequentially connected；Wherein, the cold burnt outlet of the coke dry quenching furnace 8 is connected with the charging aperture of the coal-Jiao's batch hopper 3
Connect.There are the coke dry quenching furnace 8 circulating gas import and circulating gas to export, the circulating gas outlet Jing waste heats of the coke dry quenching furnace 8
Boiler 9 is connected with the dried medium import of fluid bed 6, and the dried medium of the fluid bed 6 exports Jing expansion chambers or cyclone dust removal
Device 11 is connected with the circulating gas import of coke dry quenching furnace 8；The gas outlet and coke dry quenching furnace 8 of the expansion chamber or cyclone dust extractor 11
Residual gas outlet 13 is additionally provided with the connecting line of circulating gas import.Flue gas discharge opening (the figure of 7 horizontal flue of the coke oven
Not shown in) be connected with the dried medium import of coke-wet coal rotary kiln 4.The dust of the expansion chamber or cyclone dust extractor 11
Outlet is connected with pressure ball system or blast furnace blowing coal-hole 12.Dress Jiao's flue dust dust collection cover of the coke dry quenching furnace 7 and pressure ball system or height
The gas outlet Jing detonation burners 10 that disappear of stove injection coal-hole 12 are connected with the dried medium import of coke-wet coal rotary kiln 4.
Technical process：By coking coal (water content 10wt%) send into 1 coarse crushing of disintegrating machine after Jing classifying screens 2 separate 40mm with
Under coking coal, then Jing coals-Jiao batch hopper 3 send into coke-wet coal time together with cold Jiao more than 200 DEG C discharged with coke dry quenching furnace 8
In rotary kiln 4, cold burnt waste heat is dried to coking coal, while make coking coal crush (being crushed to below 3mm), it is synchronous using from
The coke oven flue gas of coke oven horizontal flue are dried, and make the water content of coking coal drop to 5-6wt%, and the wet flue gas of discharge are entered
Qualified discharge after cleaner unit dedusting, the cold burnt and coking coal for going out coke-wet coal rotary kiln 4 are isolated into coal-coke bolter 5
Temperature is less than 100 DEG C of cold Jiao, and after crushing, coking coal and coke powder carry out fluidizing in sending into fluid bed 6 together, be dried, be classified, and are followed
The drying of ring coal gas is to water content 3wt%, and classification obtains rough coal grain (a diameter of 0.3-3mm) and fine breeze (diameter ＜
0.3mm), the rough coal grain obtains red Jiao after sending into 7 coking of coke oven, and red burnt coke dry quenching furnace 8 of sending into is obtained after circulating gas quenching
Cold Jiao of the temperature more than 200 DEG C；Go out the circulating gas (900 DEG C of temperature) of coke dry quenching furnace 8 into 9 byproduct steam of waste heat boiler, go out remaining
The circulating gas (temperature 180-230 DEG C) of heat boiler 9 are sent into fluid bed 6 and broken rear coking coal are fluidized, done as fluidizing gas
Dry, classification, goes out the circulating gas of fluid bed 6 Jing after 11 dedusting of expansion chamber or cyclone dust extractor, and most of loopback coke dry quenching furnace 8 is to red
Jiao carries out quenching, and fraction is drawn from residual gas outlet 13 and sends into gas cleaning system as by-product gas.Jing expansion chambers
Or the fine coal (particle diameter ＜ 0.3mm) that whirlwind dust settler 11 is isolated sends into blast furnace blowing coal-hole or pressure ball system 12 makes moulded coal.
Dress Jiao's flue dust that dress Jiao's flue dust dust collection cover outlet (not marking in figure) at the top of the coke dry quenching furnace 8 is drawn and from height
Stove is blown the dusty gas of coal-hole or 12 dust collection cover of pressure ball system outlet (not marking in figure), and the Jing detonation burners 10 that disappear are burnt together
After the burnt dirt of oxygen depleted and part and from 7 horizontal flue of coke oven coke oven flue gas together as dried medium send into coke-
Wet coal rotary kiln 4 takes away dampness in kiln.
By taking the 6m coke ovens production for producing burnt 1,100,000 tons of burnt 2,55 hole per year as an example, using present invention process after, add up to and reclaim
More than waste heat about 0.4GJ/t- is burnt, by-product gas 10000m3/ hour；Before coking coal enters coke oven, water content is down to less than 3%,
Reduce by more than 70% coking chemical waste water yield.
Claims (5)
1. a kind of CDQ based on coal damping synchronously prepares water gas system, it is characterised in that broken including what is be sequentially connected
Broken machine, classifying screen, coal-Jiao's batch hopper, coke-wet coal rotary kiln, coal-coke bolter, fluid bed, coke oven and coke dry quenching furnace；Institute
The cold burnt outlet for stating coke dry quenching furnace is connected with the charging aperture of the coal-Jiao's batch hopper, and the classifying screen contains two discharging openings, respectively
It is connected with coal-Jiao's batch hopper and disintegrating machine feeding mouth.
2. the CDQ based on coal damping as claimed in claim 1 synchronously prepares water gas system, it is characterised in that described
Coke dry quenching furnace has circulating gas import and circulating gas outlet, circulating gas outlet Jing waste heat boilers and the fluidisation of the coke dry quenching furnace
The dried medium import connection of bed, the dried medium outlet Jing expansion chambers or cyclone dust extractor of the fluid bed and following for coke dry quenching furnace
Ring gas inlet connects；Residual gas outlet is additionally provided with the circulating gas inlet connecting branch road of the coke dry quenching furnace.
3. the CDQ based on coal damping as claimed in claim 1 or 2 synchronously prepares water gas system, it is characterised in that
The flue gas discharge opening of the coke oven horizontal flue is connected with the dried medium import of coke-wet coal rotary kiln.
4. the CDQ based on coal damping as claimed in claim 1 or 2 synchronously prepares water gas system, it is characterised in that
The dust outlet of the expansion chamber or cyclone dust extractor is connected with pressure ball system or blast furnace blowing coal-hole.
5. the CDQ based on coal damping as claimed in claim 4 synchronously prepares water gas system, it is characterised in that described
The dust collection cover outlet Jing of the burnt flue dust dust collection cover of dress and pressure ball system or blast furnace blowing coal-hole of coke dry quenching furnace disappear detonation burner and coke-
The dried medium import connection of wet coal rotary kiln.
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| CN201610969411.0A CN106566569B (en) | 2016-10-27 | 2016-10-27 | Dry Quenching based on coal damping, which synchronizes, prepares water gas system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110779318A (en) * | 2019-03-14 | 2020-02-11 | 邢台旭阳科技有限公司 | Wet coal drying device and wet coal drying method using same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3888742A (en) * | 1974-01-23 | 1975-06-10 | Waagner Biro American | Pollution-free coal-preheating with waste heat from dry coke-quenching |
| CN101974344A (en) * | 2010-11-12 | 2011-02-16 | 中冶焦耐(大连)工程技术有限公司 | Drying process for humidifying coals by using coke oven flue gas and device |
| CN103710037A (en) * | 2013-12-20 | 2014-04-09 | 清华大学 | Fluidized-bed low-rank coal upgrading utilization system and method |
-
2016
- 2016-10-27 CN CN201610969411.0A patent/CN106566569B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3888742A (en) * | 1974-01-23 | 1975-06-10 | Waagner Biro American | Pollution-free coal-preheating with waste heat from dry coke-quenching |
| CN101974344A (en) * | 2010-11-12 | 2011-02-16 | 中冶焦耐(大连)工程技术有限公司 | Drying process for humidifying coals by using coke oven flue gas and device |
| CN103710037A (en) * | 2013-12-20 | 2014-04-09 | 清华大学 | Fluidized-bed low-rank coal upgrading utilization system and method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110779318A (en) * | 2019-03-14 | 2020-02-11 | 邢台旭阳科技有限公司 | Wet coal drying device and wet coal drying method using same |
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| CN106566569B (en) | 2019-03-12 |
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