CN104132331B - A kind of be fuel with coal dust partition heater - Google Patents
A kind of be fuel with coal dust partition heater Download PDFInfo
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- CN104132331B CN104132331B CN201410368578.2A CN201410368578A CN104132331B CN 104132331 B CN104132331 B CN 104132331B CN 201410368578 A CN201410368578 A CN 201410368578A CN 104132331 B CN104132331 B CN 104132331B
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- combustor
- partition
- waste heat
- heat boiler
- coal dust
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- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- 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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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The present invention relates to a kind of partition heater being fuel with coal dust, including combustor, cyclone separator, partition firing equipment and waste heat boiler, combustor is provided with burner, secondary wind entrance, exhanst gas outlet, molten slag bath and slag notch, burner is positioned at top or the sidepiece of combustor, secondary wind entrance is positioned at the sidepiece of combustor, arranged tangential, waste heat boiler is provided with steam pipe coil, steam pipe coil is connected with electricity generation system, the exhanst gas outlet of combustor is connected to partition firing equipment by cyclone separator, partition firing equipment is connected to waste heat boiler, bypass it is provided with between combustor and waste heat boiler.The present invention makes full use of the high-temperature flue gas heated material room that coal dust produces in combustion process, it is achieved heat efficiently utilizes, and reduces energy expenditure, improves the device thermal efficiency.
Description
Technical field
The invention belongs to technical field of chemical production equipment, relate to a kind of partition heater, be specifically related to a kind of partition heater being fuel with coal dust.
Background technology
The combustion system function singleness of prior art, it is only used for calcining or the heating of a kind of material, existing burning boiler generally comprises body of heater, burner hearth, feed arrangement, fire grate, fire grate be divided into upper lower combustion chamber and ash-falling chamber, and fuel is burnt by after entering combustor above burner hearth.The thermal efficiency is low, burning can not be sufficiently conducted to adopt this combustion system to have the drawback that, utilization of energy is abundant not, and fuel is transported to combustor from top to bottom, causes that fuel particle burning is insufficient, produce volume of smoke, cause environmental pollution, and owing to the ash fusion point of coal dust is relatively low, it is easy to slagging scorification, attach on tank body, affect the conduction of heat of tank body, heat utilization efficiency is low, general without coal dust as fuel.
Summary of the invention
It is an object of the invention to provide a kind of partition heater being fuel with coal dust, to reduce the energy expenditure of partition heater, improve the thermal efficiency, it is adaptable to the kinds of processes such as rubbish dry distilling, coking, lime production and DRI, make full use of resource.
The partition heater that the present invention is fuel with coal dust, including combustor, cyclone separator, partition firing equipment, waste heat boiler and generating equipment.Combustor is provided with burner, secondary wind entrance, exhanst gas outlet, molten slag bath and slag notch.Burner is positioned at top or the sidepiece of combustor, and secondary wind entrance is positioned at the sidepiece of combustor, secondary wind entrance arranged tangential.Waste heat boiler is provided with steam pipe coil, and steam pipe coil is connected with generating equipment.The exhanst gas outlet of combustor is connected to partition firing equipment by cyclone separator, and partition firing equipment is connected to waste heat boiler.The locular wall of combustor is laying fireproof bricks structure or laying fireproof bricks adds water wall structure.Being provided with bypass between combustor and waste heat boiler, bypass is provided with valve.
Partition heater is partition coking furnace, magnesium reduction furnace, partition rotary kiln, partition rotary hearth furnace, partition shaft furnace or caches ring kiln.Partition coking furnace is provided with the alternate setting of carbonization chamber and smoke chamber, carbonization chamber and smoke chamber.Smoke chamber is provided with air inlet and gas outlet, and air inlet is connected with Cyclone outlet, and gas outlet is connected with waste heat boiler.Carbonization chamber is provided with charge door, coking gas outlet and coke outlet.Coking furnace is provided with ram, and ram is provided with pushing ram and coke pushing plate；Ram is connected with coke pushing plate by pushing ram.Magnesium reduction furnace is provided with smoke inlet and exhanst gas outlet, and smoke inlet is connected with Cyclone outlet, and exhanst gas outlet is connected with waste heat boiler；Described magnesium reduction furnace is equipped with reductive jar, and described reductive jar is vertically-mounted or level is installed.Magnesium reduction furnace is dividing wall type structure, is provided with at least one exhaust gases passes and reduction room, is separated by heat conducting wall between exhaust gases passes and reduction room in magnesium reduction furnace.Equipped with reductive jar in reduction room.The entrance of exhaust gases passes is connected with Cyclone outlet, and outlet is connected with waste heat boiler.Partition rotary kiln is telescoping structure, including inner core and urceolus, is supported by supporting brick between inner core and urceolus.Inner core is flue gas thorax, and the annular space between inner core and urceolus is supplies room.Rotary kiln is provided with kiln head cover and kiln hood, and the side of kiln hood is provided with apparatus for feeding, and kiln head cover side is provided with discharging opening.The side of flue gas thorax kiln head cover is provided with flue gas nozzle, and flue gas nozzle is connected with the outlet of cyclone separator, and flue gas thorax kiln hood side is connected with waste heat boiler.Combustor is vertical cylindrical structure or horizontal cylinder body structure, and the burner of vertical cylindrical structure combustor is positioned at the top of combustor, and exhanst gas outlet is positioned at the bottom of combustor.The burner of horizontal cylinder body structure combustor is positioned at the side of combustor, and exhanst gas outlet is positioned at the opposite side of combustor.Generating equipment is provided with steam turbine and generating set, steam turbine and generating set and connects, and steam pipe coil is connected with steam turbine.
The partition heater that the present invention is fuel with coal dust is combined with partition firing equipment and generating equipment by external combustor, make full use of the high-temperature flue gas heated material room that coal dust produces in combustion process, efficiently make use of heat, reduce energy expenditure, improve the thermal efficiency of device.Adopt partition mode of heating, make flue gas and material to be machined separately, reduce the harmful substance pollutions to material to be machined such as sulfureous in flue gas, be conducive to improving product quality and collecting by-product.Partition heater is combined with steam turbine, with waste heat generation steam, uses steam drive steam turbine, and steam turbine drive electrical generators generates electricity, and makes waste heat obtain high-quality utilization, has great economic benefit and social benefit.
Accompanying drawing explanation
Fig. 1 is the partition heater structural representation that the present invention is fuel with coal dust；
Fig. 2 is the horizontal combustor schematic diagram of Fig. 1；
Fig. 3 is the partition coking furnace schematic diagram of Fig. 1；
Fig. 4 is magnesium reduction furnace schematic diagram；
Fig. 5 is partition rotary kiln schematic diagram
Wherein:
null1 coal powder entrance、2 burners、3 secondary wind entrances、4 combustor、5 molten slag baths、6 slag notches、7 bypasses、8 valves、9 exhanst gas outlets、10 locular walls、11 cyclone separator、12 charge doors、13 air inlets、14 carbonization chambers、15 heat conducting wall、16 gas outlets、17 air intakes、18 smoke chambers、19 steam pipe coils、20 waste heat boilers、21 exhaust gases passes、22 rams、23 coke outlets、24 partition coking furnaces、25 coking gas outlets、26 magnesium reduction furnaces、27 reductive jar、28 reduction rooms、29 flue gas nozzles、30 kiln head covers、31 urceolus、32 inner cores、33 kiln hoods、34 supporting bricks、35 supplies rooms、36 apparatuss for feeding、37 partition rotary kilns、38 discharging openings.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail.
Embodiment 1
The partition heater that the present invention is fuel with coal dust, as shown in Figure 1, Figure 3, including combustor 4, cyclone separator 11, partition coking furnace 24, waste heat boiler 20 and generating equipment.Combustor is vertical cylindrical structure, and combustor is provided with burner 2, secondary wind entrance 3, exhanst gas outlet 9, molten slag bath 5 and slag notch 6.Burner 2 is positioned at the top of combustor 4, and secondary wind entrance 3 is positioned at the sidepiece of combustor 4, installs in a tangential manner, and exhanst gas outlet and molten slag bath are positioned at the bottom of combustor.Burner is provided with coal powder entrance 1 and air intake 17.Partition coking furnace is provided with carbonization chamber 14 and the alternate setting of smoke chamber 18, carbonization chamber and smoke chamber, separates by heat conducting wall 15 between carbonization chamber and smoke chamber.Smoke chamber is provided with air inlet 13 and gas outlet 16, and air inlet 13 is connected with cyclone separator 11 outlet, and gas outlet 16 is connected with waste heat boiler 20.Carbonization chamber is provided with charge door 12, coking gas outlet 25 and coke outlet 23.Partition coking furnace is provided with ram 22, and ram is provided with pushing ram and coke pushing plate, and ram is connected with coke pushing plate by pushing ram.Generating equipment is provided with steam turbine and generating set, steam turbine and generating set and connects.Waste heat boiler is provided with steam pipe coil 19, and steam pipe coil 19 is connected with steam turbine.The locular wall 10 of combustor adds water wall structure for laying fireproof bricks.Being provided with bypass 7 between combustor 4 and waste heat boiler 20, provide flue gas for combustor to waste heat boiler, gas fume of combustion chamber is either directly through the steam pipe coil generation steam-electric power of waste heat boiler, and bypass is provided with valve 8.
The present invention is that coal dust enters burner 2 through coal powder entrance 1 with the running of the partition heater that coal dust is fuel, and the air that aerator bloats enters burner 2 as First air through air intake 17 and carries out combustion-supporting burning.The high-temperature flue gas that burning produces carries out dedusting, purification to cyclone separator 11, and after dedusting, flue gas heats the material in carbonization chamber 14 through air inlet 13 to smoke chamber muffle.Carbonization chamber material carries out high-temperature retorting, pyrolysis temperature 950-～1050 DEG C, the gas component of retort process exports 25 through coking gas and processes to coke-stove gas processing unit, and coke ram releases carbonization chamber by coke outlet 23, carries out the subsequent processes such as quenching.Coke-stove gas exports to coal gas through coking gas and processes equipment process, and coke ram is released from coke outlet.At the exothermic flue gas of smoke chamber through gas outlet to waste heat boiler, by steam pipe coil heat-obtaining generation steam, steam drives steam turbine to rotate by the steam turbine of pipeline to generating equipment, and drive electrical generators group generates electricity.Release the flue gas after heat to discharge through exhanst gas outlet to exhaust emission system.Burning produces slag and is in molten condition at molten slag bath 5, discharges through slag notch 6.The slag of the molten condition that combustor 4 burning produces converges to molten slag bath 5, and the slag notch 6 through combustor 4 bottom is discharged.
Embodiment 2
Another embodiment of the present invention is as in figure 2 it is shown, burner hearth is horizontal cylinder body structure, and burner 2 is positioned at the side of combustor 4, and exhanst gas outlet is positioned at the opposite side of combustor, and exhanst gas outlet is connected to the entrance of cyclone separator.In horizontal cylinder body structure combustor, molten slag bath 5 and slag notch are arranged in the side of combustor exhanst gas outlet.Other structure is identical with embodiment 1 with operation.
Embodiment 3
As shown in Figure 4, including combustor 4, cyclone separator 11, magnesium reduction furnace 26, waste heat boiler 20 and generating equipment, magnesium reduction furnace 26 is dividing wall type structure to the third embodiment of the present invention.Magnesium reduction furnace is provided with two exhaust gases passes 21 and reduction room 28, is separated by heat conducting wall between exhaust gases passes and reduction room.Equipped with reductive jar 27 in reduction room, during reductive jar 27 reduces room at three, level is installed.The entrance of exhaust gases passes is connected with Cyclone outlet, and outlet is connected with waste heat boiler.The flue gas that combustion chambers burn produces enters exhaust gases passes 21, the reductive jar in muffle heat reduction room through cyclone separator, carries out reduction refining magnesium.At the exothermic flue gas of exhaust gases passes 21 to waste heat boiler, by steam pipe coil heat-obtaining generation steam, steam drives steam turbine to rotate by the steam turbine of pipeline to generating equipment, and drive electrical generators group generates electricity.
Embodiment 4
The 4th kind of embodiment of the present invention is as it is shown in figure 5, include combustor 4, cyclone separator 11, partition rotary kiln 37, waste heat boiler 20 and generating equipment.Partition rotary kiln is telescoping structure, including inner core 32 and urceolus 31, is supported by supporting brick 34 between inner core and urceolus.Inner core is flue gas thorax, and the annular space between inner core and urceolus is supplies room 35.Rotary kiln is provided with kiln head cover 30 and kiln hood 33, and the side of kiln hood is provided with apparatus for feeding 36, and kiln head cover side is provided with discharging opening 38.The side of flue gas thorax kiln head cover is provided with flue gas nozzle 29, and flue gas nozzle is connected with the outlet of cyclone separator, and flue gas thorax kiln hood side is connected to waste heat boiler.
The flue gas that combustion chambers burn produces enters flue gas thorax through cyclone separator, material in muffle heated material room, exothermic flue gas is to waste heat boiler, by steam pipe coil heat-obtaining generation steam, steam drives steam turbine to rotate by the steam turbine of pipeline to generating equipment, and drive electrical generators group generates electricity.
Claims (9)
1. the partition heater that a kind is fuel with coal dust, including combustor (4), cyclone separator (11), partition firing equipment, waste heat boiler (20) and generating equipment, it is characterized in that: described combustor is provided with burner (2), secondary wind entrance (3), exhanst gas outlet (9), molten slag bath (5) and slag notch (6), described burner is positioned at top or the sidepiece of combustor, described secondary wind entrance is positioned at the sidepiece of combustor, secondary wind entrance arranged tangential；Described waste heat boiler is provided with steam pipe coil (19), and described steam pipe coil is connected with generating equipment；The exhanst gas outlet of described combustor is connected to partition firing equipment by cyclone separator, and partition firing equipment is connected to waste heat boiler；The locular wall (10) of described combustor adds water wall structure for laying fireproof bricks structure or laying fireproof bricks；Being provided with bypass (7) between described combustor (4) and waste heat boiler (20), described bypass is provided with valve (8).
2. according to claim 1 be fuel with coal dust partition heater, it is characterized in that: described partition heater is partition coking furnace (24), magnesium reduction furnace (26), partition rotary kiln (37), partition rotary hearth furnace, partition shaft furnace or caches ring kiln.
3. according to claim 2 be fuel with coal dust partition heater, it is characterized in that: described partition coking furnace is provided with carbonization chamber (14) and smoke chamber (18), carbonization chamber and the alternate setting of smoke chamber；Described smoke chamber is provided with air inlet (13) and gas outlet (16), and air inlet is connected with Cyclone outlet, and gas outlet is connected with waste heat boiler；Described carbonization chamber is provided with charge door (12), coking gas outlet (25) and coke outlet (23).
4. according to claim 3 be fuel with coal dust partition heater, it is characterized in that: described coking furnace is provided with ram (22), ram is provided with pushing ram and coke pushing plate；Ram is connected with coke pushing plate by pushing ram.
5. according to claim 2 be fuel with coal dust partition heater, it is characterized in that: described magnesium reduction furnace (26) is provided with smoke inlet and exhanst gas outlet, and smoke inlet is connected with Cyclone outlet, and exhanst gas outlet is connected with waste heat boiler；Described magnesium reduction furnace is equipped with reductive jar, and described reductive jar is vertically-mounted or level is installed.
6. according to claim 2 be fuel with coal dust partition heater, it is characterized in that: described magnesium reduction furnace (26) is dividing wall type structure, magnesium reduction furnace is provided with at least one exhaust gases passes (21) and reduction room (28), is separated by heat conducting wall between exhaust gases passes and reduction room；Equipped with reductive jar (27) in described reduction room；The entrance of described exhaust gases passes is connected with cyclone separator (11) outlet, and outlet is connected with waste heat boiler.
7. according to claim 2 be fuel with coal dust partition heater, it is characterized in that: described partition rotary kiln (37) is telescoping structure, including inner core (32) and urceolus (31), between inner core and urceolus by supporting brick (34) support；Inner core is flue gas thorax, and the annular space between inner core and urceolus is supplies room (35)；Rotary kiln is provided with kiln head cover (30) and kiln hood (33), and the side of kiln hood is provided with apparatus for feeding (36), and kiln head cover side is provided with discharging opening (38)；The side of flue gas thorax kiln head cover is provided with flue gas nozzle (29), and flue gas nozzle is connected with the outlet of cyclone separator, and flue gas thorax kiln hood side is connected with waste heat boiler.
8. according to claim 1 be fuel with coal dust partition heater, it is characterized in that: described combustor (4) is vertical cylindrical structure or horizontal cylinder body structure, the burner of described vertical cylindrical structure combustor is positioned at the top of combustor, and exhanst gas outlet is positioned at the bottom of combustor；The burner of described horizontal cylinder body structure combustor is positioned at the side of combustor, and exhanst gas outlet is positioned at the opposite side of combustor.
9. according to claim 1 be fuel with coal dust partition heater, it is characterized in that: described generating equipment is provided with steam turbine and generating set, steam turbine and generating set connect, and described steam pipe coil (19) is connected with steam turbine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410368578.2A CN104132331B (en) | 2014-07-30 | 2014-07-30 | A kind of be fuel with coal dust partition heater |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410368578.2A CN104132331B (en) | 2014-07-30 | 2014-07-30 | A kind of be fuel with coal dust partition heater |
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| CN104132331A CN104132331A (en) | 2014-11-05 |
| CN104132331B true CN104132331B (en) | 2016-07-13 |
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| CN110892221A (en) * | 2017-05-26 | 2020-03-17 | 诺维尔里斯公司 | Cyclone temperature control for decoating systems |
| CN109252842B (en) * | 2018-10-29 | 2024-04-12 | 邓晓亮 | Mixed gas triple power generation system produced by underground supercritical coal gasification |
| CN114798801B (en) * | 2021-08-25 | 2024-08-02 | 常熟市异型钢管有限公司 | An automated production method for high-precision oxygen-free steel pipes |
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| CN101585535A (en) * | 2009-06-16 | 2009-11-25 | 青岛大学 | Preparation device for residual energy recovery biomass granular activated carbon |
| CN102620571A (en) * | 2012-04-10 | 2012-08-01 | 上海瑞恩能源投资有限公司 | Waste-heat power generating system in smelting process of rotary kiln and ore-smelting electric furnace |
| CN102759259A (en) * | 2012-07-12 | 2012-10-31 | 西安交通大学 | Brown coal upgrading-power generation co-production system |
| CN103058536A (en) * | 2012-11-26 | 2013-04-24 | 石家庄新华能源环保科技股份有限公司 | Heat-accumulation dividing-wall heating rotary kiln device |
| CN103303876A (en) * | 2013-06-07 | 2013-09-18 | 瓮福（集团）有限责任公司 | Waste-heat recovery method in making acid by using pyrite |
| CN103497784A (en) * | 2013-10-08 | 2014-01-08 | 西安元创化工科技股份有限公司 | Method for producing tar, semi-coke and synthetic fuel gas by low-degree of coalification powdered coal |
| CN204063007U (en) * | 2014-07-30 | 2014-12-31 | 石家庄新华能源环保科技股份有限公司 | A kind of take coal dust as the partition heater of fuel |
-
2014
- 2014-07-30 CN CN201410368578.2A patent/CN104132331B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5798794A (en) * | 1980-12-10 | 1982-06-19 | Nippon Steel Corp | Method and device for recovering thermal energy from molten slag |
| CN101585535A (en) * | 2009-06-16 | 2009-11-25 | 青岛大学 | Preparation device for residual energy recovery biomass granular activated carbon |
| CN102620571A (en) * | 2012-04-10 | 2012-08-01 | 上海瑞恩能源投资有限公司 | Waste-heat power generating system in smelting process of rotary kiln and ore-smelting electric furnace |
| CN102759259A (en) * | 2012-07-12 | 2012-10-31 | 西安交通大学 | Brown coal upgrading-power generation co-production system |
| CN103058536A (en) * | 2012-11-26 | 2013-04-24 | 石家庄新华能源环保科技股份有限公司 | Heat-accumulation dividing-wall heating rotary kiln device |
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| CN103497784A (en) * | 2013-10-08 | 2014-01-08 | 西安元创化工科技股份有限公司 | Method for producing tar, semi-coke and synthetic fuel gas by low-degree of coalification powdered coal |
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