CN104132331A - Partition wall heating device with coal dust as fuel - Google Patents
Partition wall heating device with coal dust as fuel Download PDFInfo
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- CN104132331A CN104132331A CN201410368578.2A CN201410368578A CN104132331A CN 104132331 A CN104132331 A CN 104132331A CN 201410368578 A CN201410368578 A CN 201410368578A CN 104132331 A CN104132331 A CN 104132331A
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- combustion chamber
- partition
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- waste heat
- fuel
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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
Abstract
The invention relates to a partition wall heating device with coal dust as fuel. The device comprises a combustion chamber, a cyclone separator, partition wall heating equipment and a waste heat boiler. The combustion chamber is provided with a burner, a secondary air inlet, a flue gas outlet, a slag pool and a slag outlet. The burner is arranged in the upper or side part of the combustion chamber; the secondary air inlet is tangentially arranged at the side of the combustion chamber; the waste heat boiler is provided with a steam coil connected with a power system; a flue gas outlet of the combustion chamber is connected to the partition wall heating equipment through the cyclone separator; the partition wall heating equipment is connected to the waste heat boiler; and a bypass is arranged between the combustion chamber and the waste heat boiler. The invention fully utilizes high temperature flue gas produced in the combustion process of coal dust for heating the material chamber, so as to realize efficient heat use, reduce energy consumption, and improve the thermal efficiency of the device.
Description
Technical field
The invention belongs to chemical production equipment technical field, relate to a kind of partition heater, be specifically related to a kind of partition heater that coal dust is fuel of take.
Background technology
The combustion system function singleness of prior art, can only be for a kind of calcining or heating of material, existing burning boiler generally comprises body of heater, burner hearth, feed arrangement, fire grate, by fire grate, is divided into upper lower combustion chamber and ash-falling chamber, and fuel burns after entering combustion chamber by burner hearth top.The shortcoming that adopts this combustion system to exist is that the thermal efficiency is low, burning can not fully be carried out, using energy source is abundant not, and fuel is transported to combustion chamber from top to bottom, cause fuel particle burning insufficient, produce volume of smoke, cause environmental pollution, and because the ash fusion point of coal dust is lower, easily slagging scorification, attaches on tank body, affect the heat conduction of tank body, heat utilization efficiency is low, generally without coal dust as fuel.
Summary of the invention
The object of this invention is to provide a kind of partition heater that coal dust is fuel of take, to reduce the energy consumption of partition heater, improve the thermal efficiency, be applicable to the kinds of processes such as rubbish destructive distillation, coking, lime production and DRI, make full use of resource.
The partition heater that coal dust is fuel is take in the present invention, comprises combustion chamber, cyclone separator, partition firing equipment, waste heat boiler and generating equipment.Combustion chamber is provided with burner, Secondary Air entrance, exhanst gas outlet, molten slag bath and slag notch.Burner is positioned at top or the sidepiece of combustion chamber, and Secondary Air entrance is positioned at the sidepiece of combustion chamber, Secondary Air 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 combustion chamber is connected to partition firing equipment by cyclone separator, and partition firing equipment is connected to waste heat boiler.The locular wall of combustion chamber is that laying fireproof bricks structure or laying fireproof bricks add water wall structure.Between combustion chamber and waste heat boiler, be provided with bypass, 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 carbonization chamber and smoke chamber, the alternate setting of carbonization chamber and smoke chamber.Smoke chamber is provided with air inlet and gas outlet, and air inlet is connected with cyclone separator 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 separator outlet, and exhanst gas outlet is connected with waste heat boiler; Described magnesium reduction furnace is equipped with reduction tank, and described reduction tank is vertically installed or level is installed.Magnesium reduction furnace is dividing wall type structure, is provided with at least one exhaust gases passes and reduction chamber in magnesium reduction furnace, between exhaust gases passes and reduction chamber, by heat conducting wall, separates.Reduction is equipped with reduction tank in chamber.The entrance of exhaust gases passes is connected with cyclone separator outlet, and outlet is connected with waste heat boiler.Partition rotary kiln is telescoping structure, comprises inner core and urceolus, between inner core and urceolus, by supporting brick, supports.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 a side of kiln hood is provided with apparatus for feeding, and kiln head cover one side is provided with discharging opening.One 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 one side is connected with waste heat boiler.Combustion chamber is vertical cylindrical structure or horizontal cylinder body structure, and the burner of vertical cylindrical structure combustion chamber is positioned at the top of combustion chamber, and exhanst gas outlet is positioned at the bottom of combustion chamber.The burner of horizontal cylinder body structure combustion chamber is positioned at a side of combustion chamber, and exhanst gas outlet is positioned at the opposite side of combustion chamber.Generating equipment is provided with steam turbine and generating set, and steam turbine is connected with generating set, and steam pipe coil is connected with steam turbine.
The present invention be take the partition heater that coal dust is fuel and is combined with partition firing equipment and generating equipment by external combustion chamber, make full use of the high-temperature flue gas heating supplies room that coal dust produces in combustion process, efficiently utilize heat, reduced energy consumption, improved the thermal efficiency of device.Adopt partition mode of heating, make flue gas and material to be machined separately, reduce the pollutions of harmful substance to material to be machined such as sulfureous in flue gas, be conducive to improve the quality of products and collect accessory substance.Partition heater is combined with steam turbine, with waste heat generation steam, uses steam drive steam turbine, and steam turbine drives generator generating, makes waste heat obtain high-quality utilization, has great economic benefit and social benefit.
Accompanying drawing explanation
Fig. 1 is that the partition heater structural representation that coal dust is fuel is take in the present invention;
Fig. 2 is the horizontal combustion chamber 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:
1-coal powder entrance, 2-burner, 3-Secondary Air entrance, 4-combustion chamber, 5-molten slag bath, 6-slag notch, 7-bypass, 8-valve, 9-exhanst gas outlet, 10-locular wall, 11-cyclone separator, 12-charge door, 13-air inlet, 14-carbonization chamber, 15-heat conducting wall, 16-gas outlet, 17-air intake, 18-smoke chamber, 19-steam pipe coil, 20-waste heat boiler, 21-exhaust gases passes, 22-ram, 23-coke outlet, 24-partition coking furnace, the outlet of 25-coking gas, 26-magnesium reduction furnace, 27-reduction tank, 28-reduction chamber, 29-flue gas nozzle, 30-kiln head cover, 31-urceolus, 32-inner core, 33-kiln hood, 34-supporting brick, 35-supplies room, 36-apparatus for feeding, 37-partition rotary kiln, 38-discharging opening.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
Embodiment 1
The partition heater that coal dust is fuel is take in the present invention, as shown in Figure 1, Figure 3, comprises combustion chamber 4, cyclone separator 11, partition coking furnace 24, waste heat boiler 20 and generating equipment.Combustion chamber is vertical cylindrical structure, and combustion chamber is provided with burner 2, Secondary Air entrance 3, exhanst gas outlet 9, molten slag bath 5 and slag notch 6.Burner 2 is positioned at the top of combustion chamber 4, and Secondary Air entrance 3 is positioned at the sidepiece of combustion chamber 4, with tangential manner, installs, and exhanst gas outlet and molten slag bath are positioned at the bottom of combustion chamber.Burner is provided with coal powder entrance 1 and air intake 17.Partition coking furnace is provided with carbonization chamber 14 and smoke chamber 18, and the alternate setting of 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 outlets, 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, and steam turbine is connected with generating set.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 combustion chamber adds water wall structure for laying fireproof bricks.Between combustion chamber 4 and waste heat boiler 20, be provided with bypass 7, for combustion chamber, to waste heat boiler, provide flue gas, gas fume of combustion chamber is directly by the steam pipe coil generation steam-electric power of waste heat boiler, and bypass is provided with valve 8.
The present invention take the partition heater that coal dust is fuel running as, coal dust enters burner 2 through coal powder entrance 1, the air that air blast bloats enters burner 2 as a wind 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 ℃, the gas component of retort process is processed to coke-stove gas processing unit through coking gas outlet 25, and coke is released carbonization chamber with ram by coke outlet 23, carries out the subsequent processes such as quenching.Coke-stove gas exports to coal gas treatment facility through coking gas and processes, and coke is released from coke outlet with ram.At the exothermic flue gas of smoke chamber, through gas outlet, arrive waste heat boiler, by steam pipe coil heat-obtaining generation steam, by pipeline, the steam turbine driving steam turbine to generating equipment rotates steam, drives generating set generating.The flue gas of emitting after heat discharges to exhaust emission system through exhanst gas outlet.Burning generation slag, is discharged through slag notch 6 in molten condition at molten slag bath 5.The slag of the molten condition that combustion chamber 4 burnings produce converges to molten slag bath 5, and through combustion chamber, the slag notch 6 of 4 bottoms is discharged.
Embodiment 2
As shown in Figure 2, burner hearth is horizontal cylinder body structure to another embodiment of the present invention, and burner 2 is positioned at a side of combustion chamber 4, and exhanst gas outlet is positioned at the opposite side of combustion chamber, and exhanst gas outlet is connected to the entrance of cyclone separator.In horizontal cylinder body structure combustion chamber, molten slag bath 5 and slag notch are arranged in a side of combustion chamber exhanst gas outlet.Other structure and operation are identical with embodiment 1.
Embodiment 3
The third embodiment of the present invention as shown in Figure 4, comprises combustion chamber 4, cyclone separator 11, magnesium reduction furnace 26, waste heat boiler 20 and generating equipment, and magnesium reduction furnace 26 is dividing wall type structure.In magnesium reduction furnace, be provided with two exhaust gases passes 21 and reduction chamber 28, between exhaust gases passes and reduction chamber, by heat conducting wall, separate.Reduction tank 27 is housed in reduction chamber, and reduction tank 27 level in three reduction chambers is installed.The entrance of exhaust gases passes is connected with cyclone separator outlet, and outlet is connected with waste heat boiler.The flue gas that combustion chambers burn produces enters exhaust gases passes 21 through cyclone separator, and the reduction tank in muffle heat reduction chamber reduces and refines magnesium.At the exothermic flue gas of exhaust gases passes 21, to waste heat boiler, by steam pipe coil heat-obtaining generation steam, by pipeline, the steam turbine driving steam turbine to generating equipment rotates steam, drives generating set generating.
Embodiment 4
The 4th kind of embodiment of the present invention as shown in Figure 5, comprises combustion chamber 4, cyclone separator 11, partition rotary kiln 37, waste heat boiler 20 and generating equipment.Partition rotary kiln is telescoping structure, comprises inner core 32 and urceolus 31, between inner core and urceolus, by supporting brick 34, supports.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 a side of kiln hood is provided with apparatus for feeding 36, and kiln head cover one side is provided with discharging opening 38.One 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 one 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 heating supplies room, exothermic flue gas is to waste heat boiler, by steam pipe coil heat-obtaining generation steam, by pipeline, the steam turbine driving steam turbine to generating equipment rotates steam, drives generating set generating.
Claims (9)
1. take the partition heater that coal dust is fuel for one kind, comprise combustion chamber (4), cyclone separator (11), partition firing equipment, waste heat boiler (20) and generating equipment, it is characterized in that: described combustion chamber is provided with burner (2), Secondary Air entrance (3), exhanst gas outlet (9), molten slag bath (5) and slag notch (6), described burner is positioned at top or the sidepiece of combustion chamber, described Secondary Air entrance is positioned at the sidepiece of combustion chamber, Secondary Air 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 combustion chamber is connected to partition firing equipment by cyclone separator, and partition firing equipment is connected to waste heat boiler; The locular wall of described combustion chamber (10) adds water wall structure for laying fireproof bricks structure or laying fireproof bricks; Between described combustion chamber (4) and waste heat boiler (20), be provided with bypass (7), described bypass is provided with valve (8).
2. according to claim 1ly take the partition heater that coal dust is fuel, 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 2ly take the partition heater that coal dust is fuel, it is characterized in that: described partition coking furnace is provided with carbonization chamber (14) and smoke chamber (18), the alternate setting of carbonization chamber and smoke chamber; Described smoke chamber is provided with air inlet (13) and gas outlet (16), and air inlet is connected with cyclone separator 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 3ly take the partition heater that coal dust is fuel, 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 2ly take the partition heater that coal dust is fuel, it is characterized in that: described magnesium reduction furnace (26) is provided with smoke inlet and exhanst gas outlet, smoke inlet is connected with cyclone separator outlet, and exhanst gas outlet is connected with waste heat boiler; Described magnesium reduction furnace is equipped with reduction tank, and described reduction tank is vertically installed or level is installed.
6. according to claim 2ly take the partition heater that coal dust is fuel, it is characterized in that: described magnesium reduction furnace (26) is dividing wall type structure, in magnesium reduction furnace, be provided with at least one exhaust gases passes (21) and reduction chamber (28), between exhaust gases passes and reduction chamber, by heat conducting wall, separate; Reduction tank (27) is housed in described reduction chamber; 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 2ly take the partition heater that coal dust is fuel, it is characterized in that: described partition rotary kiln (37) is telescoping structure, comprises 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 a side of kiln hood is provided with apparatus for feeding (36), and kiln head cover one side is provided with discharging opening (38); One 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 one side is connected with waste heat boiler.
8. according to claim 1ly take the partition heater that coal dust is fuel, it is characterized in that: described combustion chamber (4) are vertical cylindrical structure or horizontal cylinder body structure, the burner of described vertical cylindrical structure combustion chamber is positioned at the top of combustion chamber, and exhanst gas outlet is positioned at the bottom of combustion chamber; The burner of described horizontal cylinder body structure combustion chamber is positioned at a side of combustion chamber, and exhanst gas outlet is positioned at the opposite side of combustion chamber.
9. according to claim 1ly take the partition heater that coal dust is fuel, it is characterized in that: described generating equipment is provided with steam turbine and generating set, steam turbine is connected with generating set, and described steam pipe coil (19) is connected with steam turbine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 |
|---|---|---|---|
| CN201410368578.2A CN104132331B (en) | 2014-07-30 | 2014-07-30 | A kind of be fuel with coal dust partition heater |
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| Publication Number | Publication Date |
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| CN104132331A true CN104132331A (en) | 2014-11-05 |
| CN104132331B CN104132331B (en) | 2016-07-13 |
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| CN201410368578.2A Active CN104132331B (en) | 2014-07-30 | 2014-07-30 | A kind of be fuel with coal dust partition heater |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109252842A (en) * | 2018-10-29 | 2019-01-22 | 邓晓亮 | Overcritical underground coal gasification(UCG) output mixed gas trilogy supply electricity generation system |
| CN110892221A (en) * | 2017-05-26 | 2020-03-17 | 诺维尔里斯公司 | Cyclone temperature control for decoating systems |
| CN114798801A (en) * | 2021-08-25 | 2022-07-29 | 常熟市异型钢管有限公司 | Automatic production method of high-precision oxygen-free steel pipe |
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| 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 |
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2014
- 2014-07-30 CN CN201410368578.2A patent/CN104132331B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 | The preparation facilities of residual energy reclaiming type 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 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110892221A (en) * | 2017-05-26 | 2020-03-17 | 诺维尔里斯公司 | Cyclone temperature control for decoating systems |
| CN109252842A (en) * | 2018-10-29 | 2019-01-22 | 邓晓亮 | Overcritical underground coal gasification(UCG) output mixed gas trilogy supply electricity generation system |
| CN109252842B (en) * | 2018-10-29 | 2024-04-12 | 邓晓亮 | Mixed gas triple power generation system produced by underground supercritical coal gasification |
| CN114798801A (en) * | 2021-08-25 | 2022-07-29 | 常熟市异型钢管有限公司 | Automatic production method of high-precision oxygen-free steel pipe |
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| Publication number | Publication date |
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| CN104132331B (en) | 2016-07-13 |
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