CN102965173A - Step-by-step modification upgrading system of brown coal - Google Patents
Step-by-step modification upgrading system of brown coal Download PDFInfo
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- CN102965173A CN102965173A CN2012104413095A CN201210441309A CN102965173A CN 102965173 A CN102965173 A CN 102965173A CN 2012104413095 A CN2012104413095 A CN 2012104413095A CN 201210441309 A CN201210441309 A CN 201210441309A CN 102965173 A CN102965173 A CN 102965173A
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Abstract
The invention relates to a step-by-step modification upgrading system of brown coal. The step-by-step modification upgrading system comprises a drying stage, an upgrading stage and a cooling stage, wherein coal is heated to 180-300 DEG C under the condition of isolating air through a gas heat carrier so that more than 90% of all water, crystal water and partial oxygen-containing functional groups influencing the heat value of the coal are removed and heating components of the coal are enriched. According to the step-by-step modification upgrading system of the brown coal, the heat value is increased to be more than 5000 kcal/kg, the water content is lower than 8%, the index of coal for medium-high heat value power is reached, and the modified coal has the characteristics of high heat value, good stability, weak hydroscopicity and the like; due to utilizing a double zero water process, no industrial water is required, no waste water is generated, and no harmful gas is discharged; each component adopts modularized design and can be matched according to yield requirements; and the step-by-step modification upgrading system disclosed by the invention is a highly-automatically coal treating system for treating a large amount of coal.
Description
Technical field
The invention belongs to internal-heating gas thermal barrier brown coal upgrading technical field, be specifically related to a kind of stepped start-stop system brown coal modification upgrading system.
Background technology
Brown coal are the minimum coals of degree of coalification.Have the moisture content height, reach 30%～60%; Oxygen level is high, reaches 18～25%; Fixed carbon content is low, and thermal value is low, as be about 3000kca1/kg; The notable features such as easy-weathering fragmentation.Be difficult for again economically long-distance outward transport because ature of coal is poor, so that the industrial application of brown coal is take coal district as main, and how far the main brown coal place of production of China is from city and large industrial user, and its resources advantage is difficult to be converted into economic advantages.
The reason that affects the brown coal thermal value has two: the first, and non-pyrogen reduces the amount of efficient heat generation quantity of material in the unit weight brown coal, causes the brown coal thermal value to reduce; The second, full water wants adsorption heat-emitting material heat to become mutually water vapor in the brown coal combustion processes.Causing the brown coal thermal value to reduce the most significant is full water, is oxygen and ash secondly, so for brown coal, dehydration and deoxidation are extremely important.
Mainly contain following several at industrial comparatively successful coal method for upgrading.Type of heating by stove can be divided into outside external-heat, internal heat type and the Nei Re hot hybrid.The representative of internal-heating gas thermal barrier method is, the Lu Qishi stove, and this method is to adopt gaseous heat-carrier internal heat type vertical continuous stove, China claims three sections stoves, namely comprises from top to down dryer section, retort section and cooling section three parts.The shortcoming of this technique: granularity and ature of coal to brown coal require height, are applicable to person in middle and old age's brown coal; The separate unit processing power is little, and wastewater flow rate is large, and is seriously polluted, and the feature of environmental protection is poor.Internal heat type solid heat carrier method, its representative are that this low-temperature pyrolysis method (being called for short the L-R method) is covered in Lu Qi Rule, and the shortcoming of this technique: semicoke output is little, and liquid product is many, and impurity is many, and output coal gas is many, is only applicable to town gas; The separate unit processing power is little, and wastewater flow rate is large, and is seriously polluted, and the feature of environmental protection is poor.LFC technique is ENCOAL mild-gasification technology, although every Technology is better, they all adopt chemical process, and investment is large, and cost is high, and the product grade of producing is low, and investment is long return period.Other processing method and equipment referring to Wang Yong army at " chemical industry " the 9th phase in 2009 paper of 23～26 pages.
At present, the technology of brown coal upgrading both at home and abroad is still not overripened, for realizing scale operation and oligosaprobic environmental protection index, develops pointedly brown coal upgrading technology, will be the research direction of lignite resource comprehensive utilization.Therefore, this area is in the urgent need to developing a kind of annual output semicoke or upgraded coal 3,000,000/more than the ton, economic convenient, oligosaprobic equipment.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the object of the present invention is to provide a kind of stepped start-stop system brown coal modification upgrading system, coal after the modification has the characteristics such as calorific value height, good stability, water-absorbent be weak, adopt " two zero water conservancy project skill " not need process water, also do not produce waste water, without noxious gas emission yet.
In order to achieve the above object, the technical scheme taked of the present invention is:
A kind of stepped start-stop system brown coal modification upgrading system, comprise housing 15, housing 15 is divided into dryer section, upgrading section and the cooling section that communicates with each other, and housing 15 front ends are equipped with feeding unit 6, coal charge 9 enters housing 15 inside by feeding unit 6, drops down onto above the dryer section conveying assembly 8;
Dispose dryer section conveying assembly 8 in the dryer section, dryer section conveying assembly 8 is provided with distribution device 5 and the high control device 7 of material, dryer section conveying assembly 8 is assemblied in above the first base 1 by the first guide rail 4 and the first roller 3, dryer section conveying assembly 8 lower ends connect dry air inlet system 27, dryer section hydraulic efficiency system 2 one ends are assemblied in above the first base 1, and the other end connects with dryer section conveying assembly 8;
Dispose upgrading section conveying assembly 10 in the upgrading section, upgrading section conveying assembly 10 is assemblied in above the first base 1 by the second guide rail 26 and the second roller 25, corresponding module is linked together in dry conveying assembly 8 and the upgrading conveying assembly 10, the tangential movement that is consistent, upgrading section conveying assembly 10 lower ends connect upgrading air inlet system 24, upgrading section hydraulic efficiency system 23 1 ends are assemblied in above the first base 1, and the other end connects with upgrading section conveying assembly 10;
Dispose cooling section conveying assembly 13 in the cooling section, cooling section conveying assembly 13 is assemblied in above the second base 22 by the 3rd guide rail 21 and the 3rd roller 19, cooling section conveying assembly 13 lower ends connect cooling air inlet system 20, cooling section hydraulic efficiency system 18 1 ends are assemblied in above the second base 22, and the other end connects with cooling section conveying assembly 13;
Discharge the drying and upgrading system through cooled coal charge 9 by drawing mechanism 17, enter storage bin.
Backgauge tightness system 12 is set between upgrading section and the cooling section.
Dryer section and upgrading section top arrange flue gas discharger 11.
Cooling section top arranges coolant exhaust device 14.
Advantage of the present invention: this system is by gaseous heat-carrier (hot-blast stove fume), in the secluding air situation, coal is heated to 180 ℃～300 ℃, remove the full water more than 90%, crystal water and the part oxygen-containing functional group that affect the coal calorific value, make the enrichment of coal heating component, calorific value rises to more than the 5000kca1/kg, moisture content is lower than 8%, reaches middle high heating value steam coal index.Coal after the modification has the characteristics such as calorific value height, good stability, water-absorbent be weak.Native system adopts " two zero water conservancy project skill " not need process water, does not also produce waste water, also without noxious gas emission.Whole system adopts modular design, can require to mate according to production capacity, and single device annual output semicoke or upgraded coal 1,000,000/more than the ton, be a kind of high automation Coal dressing equipment of processing large coal charge.
Description of drawings
Accompanying drawing is structural representation of the present invention.
Embodiment
The present invention will be further described below in conjunction with accompanying drawing.
With reference to accompanying drawing, a kind of stepped start-stop system brown coal modification upgrading system comprises housing 15, housing 15 inside are divided into dryer section, upgrading section and the cooling section that communicates with each other, housing 15 front ends are equipped with feeding unit 6, and coal charge 9 enters internal system by feeding unit 6, drop down onto above the dryer section conveying assembly 8; The pneumatic system that can regulate in the feeding unit 6 is regulated inlet amount, and simultaneously feeding unit 6 also has the feeding seal function, can avoid entering of the excessive and extraneous air of the gas of housing 15 inside.
Dispose dryer section conveying assembly 8 in the dryer section, dryer section conveying assembly 8 is provided with distribution device 5 and the high control device 7 of material, the coal charge 9 that enters system evenly is tiled on the dryer section conveying assembly 8 by distribution device 5, by expecting that high control device 7 controls the height of the bed of material, reach the requirement of output and technique simultaneously.
Dryer section conveying assembly 8 is assemblied in above the first base 1 by the first guide rail 4 and the first roller 3.Four groups of rollers of configuration and guide rail support and move below each conveying assembly module.
Dryer section conveying assembly 8 lower ends connect dry air inlet system 27, and the hot flue gas drying air inlet system 27 that produces through hotblast stove during work passes into dryer section conveying assembly 8, are used for the coal charge 9 on bake drying conveying assembly 8 tops.
Dryer section hydraulic efficiency system 2 one ends are assemblied in above the first base 1, and the other end connects with dryer section conveying assembly 8.Intermittently tangential movement of each module in the dryer section conveying assembly 8 in the work, its power is provided by dryer section hydraulic efficiency system 2.Dryer section hydraulic efficiency system 2 can realize stepless speed regulation.
Dispose upgrading section conveying assembly 10 in the upgrading section, upgrading section conveying assembly 10 is assemblied in above the first base 1 by the second guide rail 26 and the second roller 25.Four groups of rollers of configuration and guide rail support and move below each conveying assembly module.Corresponding module is linked together the tangential movement that is consistent in dry conveying assembly 8 and the upgrading conveying assembly 10.
Upgrading section conveying assembly 10 lower ends connect upgrading air inlet system 24, and the hot flue gas that produces through hotblast stove during work passes into upgrading section conveying assembly 10 through upgrading air inlet system 24, is used for deviating from the oxygen-containing functional group of the coal charge 9 on upgrading section conveying assembly 10 tops.
Upgrading section hydraulic efficiency system 23 1 ends are assemblied in above the first base 1, and the other end connects with upgrading section conveying assembly 10.Intermittently tangential movement of each module in the upgrading section conveying assembly 10 in the work, its power is provided by upgrading section hydraulic efficiency system 23, can realize stepless speed regulation.
Cooling section disposes cooling section conveying assembly 13, and cooling section conveying assembly 13 is assemblied in above the second base 22 by the 3rd guide rail 21 and the 3rd roller 19.Four groups of rollers of configuration and guide rail support and move below each conveying assembly module.
Cooling section conveying assembly 13 lower ends connect cooling air inlet system 20, and the freezing air that is blown into through blower fan during work passes into cooling section conveying assembly 13 through cooling air inlet system 20, are used for the hot coal material 9 on cooling conveying assembly 13 tops.Be lower than 60 ℃ through cooled coal charge temperature.
Cooling section hydraulic efficiency system 18 1 ends are assemblied in above the second base 22, and the other end connects with cooling section conveying assembly 13.Intermittently tangential movement of each module in the cooling section conveying assembly 13 in the work, its power is provided by cooling section hydraulic efficiency system 18, can realize stepless speed regulation.
Discharge the drying and upgrading system through cooled coal charge 9 by drawing mechanism 17, enter storage bin.Drawing mechanism 17 also has the air seal function, can avoid entering of the excessive and extraneous air of the gas of housing 15 inside.
Backgauge tightness system 12 is set between upgrading section and the cooling section, is used for intercepting the gas flow between upgrading section and cooling section.To guarantee the homo(io)thermism in the two intersegmental bodies of heater and to prevent that cooling section tail gas from affecting the drying and upgrading of coal charge.
Dryer section and upgrading section top arrange flue gas discharger 11, are used for getting rid of useless flue gas dry and that upgrading produces, reclaim simultaneously the water vapour that takes in the flue gas and are used for industrial production.This section waste gas divides without harmful gas, can directly efflux atmosphere.
Cooling section top arranges coolant exhaust device 14, is used for getting rid of the waste gas that cooling down high-temperature coal charge 9 produces.This section waste gas divides without harmful gas, can directly efflux atmosphere.
Stepped start-stop system brown coal modification upgrading system principle of work is:
Coal charge 9 enters internal system through feeding unit 6, is distributed on the dry conveying assembly 8 by certain bed depth through distribution device 5 and the high control device 7 of material.Each module drives simultaneously coal charge 9 along continuous straight runs and moves according to the setting means intermittent exercise that divides into groups in the conveying assembly.Coal charge 9 is deviate from moisture and oxygen-containing functional group by from the hot flue gas heating in conveying assembly bottom in the movement, reaches middle high heating value steam coal index.The expense flue gas that dry coal charge produces is discharged through housing 15 top flue gas dischargers 11, discharges behind cooling system cooling water-recovering steam.High temperature coal charge 9 enters cooling section, by the chilled air cools from cooling section conveying assembly 13 bottoms, discharges the drying and upgrading system through drawing mechanism 17.The main duty parameter such as 16 pairs of intrasystem temperature of Controlling System, pressure, atmosphere, flow carries out Real-Time Monitoring and control in the production.
Claims (4)
1. stepped start-stop system brown coal modification upgrading system, comprise housing (15), it is characterized in that: be divided into the dryer section, upgrading section and the cooling section that communicate with each other in the housing (15), housing (15) front end is equipped with feeding unit (6), coal charge (9) enters internal system by feeding unit (6), drops down onto above the dryer section conveying assembly (8);
Dispose dryer section conveying assembly (8) in the dryer section, dryer section conveying assembly (8) is provided with distribution device (5) and material high control device (7), dryer section conveying assembly (8) is assemblied in above the first base (1) by the first guide rail (4) and the first roller (3), dryer section conveying assembly (8) lower end connects dry air inlet system (27), dryer section hydraulic efficiency system (2) one ends are assemblied in above the first base (1), and the other end connects with dryer section conveying assembly (8);
Dispose upgrading section conveying assembly (10) in the upgrading section, upgrading section conveying assembly (10) is assemblied in above the first base (1) by the second guide rail (26) and the second roller (25), corresponding module is linked together in dry conveying assembly (8) and the upgrading conveying assembly (10), the tangential movement that is consistent, upgrading section conveying assembly (10) lower end connects upgrading air inlet system (24), upgrading section hydraulic efficiency system (23) one ends are assemblied in above the first base (1), and the other end connects with upgrading section conveying assembly (10);
Dispose cooling section conveying assembly (13) in the cooling section, cooling section conveying assembly (13) is assemblied in above the second base (22) by the 3rd guide rail (21) and the 3rd roller (19), cooling section conveying assembly (13) lower end connects cooling air inlet system (20), cooling section hydraulic efficiency system (18) one ends are assemblied in above the second base (22), and the other end connects with cooling section conveying assembly (13);
Discharge the drying and upgrading system through cooled coal charge (9) by drawing mechanism (17), enter storage bin.
2. a kind of stepped start-stop system brown coal modification upgrading system according to claim 1 is characterized in that: backgauge tightness system (12) is set between upgrading section and the cooling section.
3. a kind of stepped start-stop system brown coal modification upgrading system according to claim 1, it is characterized in that: dryer section and upgrading section top arrange flue gas discharger (11).
4. a kind of stepped start-stop system brown coal modification upgrading system according to claim 1, it is characterized in that: cooling section top arranges coolant exhaust device (14).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105793658A (en) * | 2013-12-06 | 2016-07-20 | 三菱重工业株式会社 | Coal deactivation processing device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1984004577A1 (en) * | 1983-05-18 | 1984-11-22 | Elf France | Method and boiler hearth for the desulphuration of fuel gas |
| US4769042A (en) * | 1987-02-27 | 1988-09-06 | Mitsubishi Jukogyo Kabushiki Kaisha | Process for heat treatment of coal |
| CN101907383A (en) * | 2010-08-10 | 2010-12-08 | 浙江大学 | Belt-conveying drying system and method for realizing dehydration upgrading of lignite by using solar energy |
| CN102183123A (en) * | 2011-02-23 | 2011-09-14 | 大庆油田有限责任公司 | Alternating multi-fountain spouting-moving bed drier |
| CN102618346A (en) * | 2012-03-22 | 2012-08-01 | 解欣业 | High-efficiency low-temperature vacuum brown-coal upgrading device and process |
| CN102627991A (en) * | 2012-03-30 | 2012-08-08 | 华北电力大学（保定） | Large spiral low-order lignite quality improving system |
| CN202452802U (en) * | 2012-02-29 | 2012-09-26 | 唐山市金锐科技有限责任公司 | Brown coal roller dryer |
-
2012
- 2012-11-07 CN CN2012104413095A patent/CN102965173A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1984004577A1 (en) * | 1983-05-18 | 1984-11-22 | Elf France | Method and boiler hearth for the desulphuration of fuel gas |
| US4769042A (en) * | 1987-02-27 | 1988-09-06 | Mitsubishi Jukogyo Kabushiki Kaisha | Process for heat treatment of coal |
| CN101907383A (en) * | 2010-08-10 | 2010-12-08 | 浙江大学 | Belt-conveying drying system and method for realizing dehydration upgrading of lignite by using solar energy |
| CN102183123A (en) * | 2011-02-23 | 2011-09-14 | 大庆油田有限责任公司 | Alternating multi-fountain spouting-moving bed drier |
| CN202452802U (en) * | 2012-02-29 | 2012-09-26 | 唐山市金锐科技有限责任公司 | Brown coal roller dryer |
| CN102618346A (en) * | 2012-03-22 | 2012-08-01 | 解欣业 | High-efficiency low-temperature vacuum brown-coal upgrading device and process |
| CN102627991A (en) * | 2012-03-30 | 2012-08-08 | 华北电力大学（保定） | Large spiral low-order lignite quality improving system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105793658A (en) * | 2013-12-06 | 2016-07-20 | 三菱重工业株式会社 | Coal deactivation processing device |
| CN105793658B (en) * | 2013-12-06 | 2017-06-13 | 三菱重工业株式会社 | Coal deactivates processing unit |
| US10287523B2 (en) | 2013-12-06 | 2019-05-14 | Mitsubishi Heavy Industries Engineering, Ltd. | Coal deactivation processing device |
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Application publication date: 20130313 |