CN103160639B - Converter smoke waste heat utilizing system - Google Patents

Converter smoke waste heat utilizing system Download PDF

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Publication number
CN103160639B
CN103160639B CN201310055643.1A CN201310055643A CN103160639B CN 103160639 B CN103160639 B CN 103160639B CN 201310055643 A CN201310055643 A CN 201310055643A CN 103160639 B CN103160639 B CN 103160639B
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converter
waste heat
outlet
gas
heat boiler
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CN201310055643.1A
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CN103160639A (en
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王洪炳
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Jiangsu Purestar Environmental Science & Technology Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

Abstract

The invention relates to the technical field of the waste heat utilizing, in particular to a converter smoke waste heat utilizing system. The converter smoke waste heat utilizing system comprises a converter, a waste heat boiler and a drying oven. The converter is provided with a converter head and a converter tail. The waste heat boiler is provided with a smoke inlet, a smoke outlet and a steam outlet. The drying oven is provided with a smoke inlet and a smoke outlet. The converter tail of the converter is connected with the smoke inlet of the waste heat boiler. The smoke outlet of the waste heat boiler is connected with the smoke inlet of the drying oven. Therefore, smoke temperature is reduced, boiler steam is produced, raw materials are preheated and dried and the converter gas waste heat can be achieved to be utilized. High temperature converter smoke can be prevented from directly discharging in the air to cause resource waste and environmental pollution.

Description

A kind of converter gas bootstrap system
Technical field
The present invention relates to technical field of waste heat utilization, particularly relate to a kind of converter gas bootstrap system.
Background technology
The converter gas treatment system in existing Activated Carbon Production workshop, primarily of horizontal internal heat type converter, connects the parts compositions such as flue pipeline, chimney.The flue gas that during normal production, converter produces, mainly through connecting flue to chimney, is then discharged in air by chimney.
The defect that the smoke processing system of existing converter is main has: in normally producing, converter inside produces flue gas, flue gas can rise to 1000-1100 degree to stove portion temperature, if without process, so high temperature is scalded people or other danger possibly; The rising of converter temperature can produce steam, if arrange the waste that will cause resource without process is just directly outer; The outer row of flue gas also can cause thermal pollution to environment; Primarily of together with the tiny particulate inclusion of dust and some inside flue gas, if without the process environment that just directly outer row can be even farther to surrounding environment.
Therefore, for above deficiency, the invention provides a kind of converter gas bootstrap system.
Summary of the invention
(1) technical problem that will solve
The object of the invention is to solve that high-temperature flue gas is directly discharged to that the fume afterheat caused in air cannot utilize by existing converter gas treatment system, the problem of the wasting of resources and environmental pollution.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of converter gas bootstrap system and comprise converter, waste heat boiler and stoving oven, described converter has burner and stove tail, described waste heat boiler has gas approach, exhanst gas outlet and vapour outlet, described stoving oven has gas approach and exhanst gas outlet, the stove tail of described converter is connected with the gas approach of described waste heat boiler, and the exhanst gas outlet of described waste heat boiler is connected with the gas approach of described stoving oven.
Wherein, described bootstrap system also comprises settling pocket, and described settling pocket has gas approach and exhanst gas outlet, and the gas approach of described settling pocket is connected with the stove tail of described converter, and the exhanst gas outlet of described settling pocket is connected with the gas approach of described waste heat boiler.
Wherein, described bootstrap system also comprises heat-exchanger rig, and described heat-exchanger rig is arranged in settling pocket, and the import of described heat-exchanger rig is connected with the vapour outlet of described waste heat boiler, and the outlet of described heat-exchanger rig is connected with the burner of described converter.
Wherein, described heat-exchanger rig is serpentine tube.
Wherein, the pipeline be connected with the vapour outlet of waste heat boiler in the import of heat-exchanger rig is provided with a point drum.
Wherein, described point of drum is provided with relief valve.
Wherein, described bootstrap system also comprises fly-ash separator, and described fly-ash separator is connected with the exhanst gas outlet of described stoving oven.
Wherein, the pipeline be connected with fly-ash separator at stoving oven exhanst gas outlet is provided with refrigerating unit.
Wherein, the smoke outlet of described fly-ash separator is provided with induced draft fan.
(3) beneficial effect
Technique scheme tool of the present invention has the following advantages: by being connected with the gas approach of waste heat boiler by the stove tail of converter, the exhanst gas outlet of waste heat boiler is connected with stoving oven gas approach, reduce flue-gas temperature, output Boiler Steam, pre-heating drying raw material, achieve the utilization of converter gas waste heat, avoid the wasting of resources and environmental pollution that are directly discharged into by high temperature converter gas and cause in air.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of converter gas bootstrap system embodiment 1 of the present invention.
Fig. 2 is the schematic diagram of converter gas bootstrap system embodiment 2 of the present invention.
In figure, 1: converter; 101: burner; 102: stove tail; 2: waste heat boiler; 3: stoving oven; 4: fly-ash separator; 5: settling pocket; 6: heat-exchanger rig; 7: point drum; 8: relief valve.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
Embodiment 1:
As shown in Figure 1, converter gas bootstrap system provided by the invention comprises converter 1, waste heat boiler 2, stoving oven 3 and fly-ash separator 4, converter 1 has burner 101 and stove tail 102, waste heat boiler 2 has gas approach, exhanst gas outlet and vapour outlet, stoving oven 3 has gas approach and exhanst gas outlet, the stove tail 102 of converter is connected with the gas approach of waste heat boiler 2, and the exhanst gas outlet of waste heat boiler 2 is connected with the gas approach of described stoving oven, and the exhanst gas outlet of stoving oven is connected with fly-ash separator 4.
Like this, in Activated Carbon Production, the temperature that converter 1 produces is that the high-temperature flue gas of 1000-1100 DEG C enters waste heat boiler 2 by stove tail 102, after waste heat boiler 2, temperature is down to about 400 DEG C, and then enter stoving oven 3 for the drying and forewarm to raw material, the flue-gas temperature going out stoving oven 3 is down to about 250 DEG C, now, flue gas is dried raw material through stoving oven 3 one aspect, achieve the utilization of fume afterheat, after flue-gas temperature reduces on the other hand, can avoid scalding and some unnecessary danger generation, finally by fly-ash separator some tiny particles in flue gas by cloth bag to filtering down, ensure to be discharged into flue gas in air to environment without any pollution, whole process finally achieves the utilization of converter gas waste heat, the steam that waste heat boiler produces simultaneously also separately can be used as him.
Embodiment 2:
As shown in Figure 2, further, embodiment 2 is on the basis of embodiment 1, the pipeline that Converter tail 102 is connected with the gas approach of waste heat boiler 2 arranges a settling pocket 5, this settling pocket 5 has gas approach and exhanst gas outlet, the gas approach of settling pocket is connected with the stove tail 102 of converter 1, and the exhanst gas outlet of settling pocket 5 is connected with the gas approach of waste heat boiler 2.Like this, the larger particles in the flue gas ejected first can be settled down by this settling pocket 5 from converter 1, ensure can not there is larger particle in the flue gas of waste heat boiler 2, otherwise larger particle packing gets off and will block flue.
Preferably, arrange a heat-exchanger rig 6 in settling pocket 5, the import of heat-exchanger rig 6 is connected with the vapour outlet of waste heat boiler 2, and the outlet of heat-exchanger rig 6 is connected with the burner 101 of converter 1.This heat-exchanger rig 6 can adopt serpentine tube, also can adopt the heat-exchanger rig of other types.Like this, from waste heat boiler 2 out steam enter the serpentine tube in settling pocket 5, contactless heat exchange is carried out with the flue gas in settling pocket 5, afterwards, converter 1 is entered into by the burner 101 of converter 1 again by the steam heated, boosting furnace charge, makes heat energy can cycling and reutilization, thus avoids the phenomenon of the wasting of resources.
In order to carry out carbonated drink separation to steam out from waste heat boiler 2, improving steam quality, the pipeline that the import of heat-exchanger rig 6 is connected with the vapour outlet of waste heat boiler 2 is provided with point drum 7.Meanwhile, point drum 7 is provided with relief valve 8, ensures the safe and stable operation of system.
Further, the pipeline that stoving oven 3 exhanst gas outlet is connected with fly-ash separator 4 is provided with refrigerating unit, and flue-gas temperature can be dropped to less than 100 DEG C, this refrigerating unit can adopt the refrigerating unit of the art routine.Like this, the flue gas going out stoving oven 3 can be lowered the temperature further on the one hand, meet environment protection emission standard, on the other hand when flue gas is by fly-ash separator, the reduction of flue-gas temperature can reduce the damage to fly-ash separator.
Preferably, the smoke outlet of described fly-ash separator 4 is provided with induced draft fan, the circulation of the flue gas of whole system can be promoted like this.
In sum, smoke waste heat utilization system of the present invention is by being connected the stove tail of converter with the gas approach of waste heat boiler, the exhanst gas outlet of waste heat boiler is connected with the gas approach of stoving oven, the exhanst gas outlet of stoving oven is connected with described fly-ash separator, reduces flue-gas temperature, output Boiler Steam, pre-heating drying raw material, filter the dust granules in flue gas, achieved the utilization of converter gas waste heat, to avoid in discharge flue gas the dust granules that contains to the pollution of environment simultaneously; Settling pocket is set by the pipeline that is connected with the gas approach of waste heat boiler at Converter tail and heat-exchanger rig serpentine tube is set in settling pocket, macrobead in sedimentation flue gas, pass in converter after the steam that boiler produces is reheated in settling pocket, achieve the recycle of heat energy, save resource; By being provided with refrigerating unit on the pipeline be connected with fly-ash separator at stoving oven exhanst gas outlet, reduce further flue-gas temperature, avoiding the pollution of discharge to environment of comparatively high temps flue gas.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and modification, these improve and modification also should be considered as protection scope of the present invention.

Claims (7)

1. a converter gas bootstrap system, it is characterized in that: it comprises converter (1), waste heat boiler (2) and stoving oven (3), described converter (1) has burner (101) and stove tail (102), described waste heat boiler (2) has gas approach, exhanst gas outlet and vapour outlet, described stoving oven (3) has gas approach and exhanst gas outlet, the stove tail (102) of described converter is connected with the gas approach of described waste heat boiler (2), the exhanst gas outlet of described waste heat boiler (2) is connected with the gas approach of described stoving oven,
Described bootstrap system also comprises settling pocket (5), described settling pocket (5) has gas approach and exhanst gas outlet, the gas approach of described settling pocket (5) is connected with the stove tail (102) of described converter, and the exhanst gas outlet of described settling pocket (5) is connected with the gas approach of described waste heat boiler;
Described bootstrap system also comprises heat-exchanger rig (6), described heat-exchanger rig (6) is arranged in settling pocket (5), the import of described heat-exchanger rig (6) is connected with the vapour outlet of described waste heat boiler, and the outlet of described heat-exchanger rig (6) is connected with the burner (101) of described converter.
2. bootstrap system according to claim 1, is characterized in that: described heat-exchanger rig (6) is serpentine tube.
3. bootstrap system according to claim 1 and 2, is characterized in that: on the pipeline that the import of described heat-exchanger rig (6) is connected with the vapour outlet of described waste heat boiler, be provided with a point drum (7).
4. bootstrap system according to claim 3, is characterized in that: described point of drum (7) is provided with relief valve (8).
5. bootstrap system according to claim 1 and 2, is characterized in that: described bootstrap system also comprises fly-ash separator (4), and described fly-ash separator (4) is connected with the exhanst gas outlet of described stoving oven (3).
6. bootstrap system according to claim 5, is characterized in that: on the pipeline that the exhanst gas outlet of described stoving oven (3) is connected with fly-ash separator (4), be provided with refrigerating unit.
7. bootstrap system according to claim 6, is characterized in that: the smoke outlet of described fly-ash separator (4) is provided with induced draft fan.
CN201310055643.1A 2013-02-21 2013-02-21 Converter smoke waste heat utilizing system Active CN103160639B (en)

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CN107190120A (en) * 2017-07-19 2017-09-22 沈志军 The technique and system of steel scrap are heated using converter gas

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CN201149239Y (en) * 2007-12-29 2008-11-12 保康楚烽化工有限责任公司 Tail gas waste heat recovery use apparatus
CN101532069B (en) * 2009-04-14 2011-03-16 江苏中金环保科技有限公司 Device for recycling flue gas of steelmaking converters through full-dry purification and process thereof
CN201593054U (en) * 2010-01-21 2010-09-29 江苏百斯特环境工程有限公司 Converter coal gas excess heat integrated recovery and utilization system
CN101906505A (en) * 2010-07-06 2010-12-08 上海信孚环保技术工程有限公司 Converter gas purification and waste heat reclamation method
CN202054856U (en) * 2011-04-25 2011-11-30 北京国华新兴节能环保科技有限公司 Waste heat boiler device for recovering low-grade heat in coal gas of converter
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CN102878821A (en) * 2012-10-24 2013-01-16 广西有色再生金属有限公司 Smoke purifying and waste heat recycling device for low-grade composition brass smelting and control method of smoke purifying and waste heat recycling device
CN102937380A (en) * 2012-11-26 2013-02-20 重庆赛迪工业炉有限公司 Flue gas treatment method and system for RHF (rotary hearth furnace)

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Address after: 215634 No. 25, Hong Kong and Macao Road, Zhangjiagang Free Trade Zone, Suzhou, Jiangsu

Patentee after: Jiangsu PureStar Environmental Science & Technology Co., Ltd.

Address before: 215634, A, 25, Hong Kong and Macao Road, Zhangjiagang Free Trade Zone, Suzhou, Jiangsu

Patentee before: Jiangsu PureStar Environmental Science & Technology Co., Ltd.

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Denomination of invention: Converter flue gas waste heat utilization system

Effective date of registration: 20210927

Granted publication date: 20150520

Pledgee: Suzhou Guofa Financing Guarantee Co.,Ltd.

Pledgor: JIANGSU PURESTAR EP TECHNOLOGY Co.,Ltd.

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