CN206695625U - A kind of built-in sintering machine large flue waste heat boiler device - Google Patents

A kind of built-in sintering machine large flue waste heat boiler device Download PDF

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Publication number
CN206695625U
CN206695625U CN201720415042.0U CN201720415042U CN206695625U CN 206695625 U CN206695625 U CN 206695625U CN 201720415042 U CN201720415042 U CN 201720415042U CN 206695625 U CN206695625 U CN 206695625U
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China
Prior art keywords
economizer
large flue
working medium
superheater
evaporator
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CN201720415042.0U
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刘小平
陆建宁
陈爱华
李菊香
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Nanjing Huadian Energy Saving And Environmental Protection Co ltd
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NANJING HUADIAN ENERGY-SAVING AND ENVIRONMENTAL PROTECTION EQUIPMENT 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
    • 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
    • Y02P80/00Climate change mitigation technologies for sector-wide applications
    • Y02P80/10Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
    • Y02P80/15On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply

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  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

A kind of built-in sintering machine large flue waste heat boiler device provided by the utility model, including large flue, drum, superheater, evaporator, economizer;The large flue right-to-left is divided into three regions, is followed successively by high-temperature region, middle warm area and low-temperature space, one group of bellows is respectively equipped with the side wall of large flue;The drum is provided with hot water inlet, hot water outlet, steam water interface import, saturated vapor outlet;The superheater, evaporator, economizer include flue and working medium pipeline respectively, and the superheater, evaporator, the flue right-to-left of economizer are sequentially arranged in high-temperature region;The working medium pipeline of the superheater is connected with saturated vapor outlet, and the working medium pipeline of the evaporator is connected with hot water outlet, steam water interface import respectively, and the working medium pipeline of the economizer is connected with hot water inlet.The apparatus structure is succinct, cost is cheap, can carry out waste heat recovery to the high-temperature flue gas at rear of sintering machine, and vapours is pressed through in can producing and is used to generate electricity.

Description

A kind of built-in sintering machine large flue waste heat boiler device
Technical field
The utility model belongs to energy-saving environmental protection device field, more particularly to a kind of built-in sintering machine large flue waste heat boiler Device.
Background technology
The sintering machine of steel industry is exactly to be sintered sulphur, phosphorus etc. in blocking and part removal iron ore to Iron Ore Powder to be harmful to The Large-Scale Equipment of impurity.Air-draft-type banding sintering machine, from head to tail, Iron Ore Powder is gradually sintered into sintering deposit, burning temperature Spend more and more higher.Below the iron ore stone layer of sintering machine, there is exhausting cooling system, be substantially equally spaced disposed with exhausting Bellows, all flue gases come of taking out are aggregated into a large flue, thus the flue gas in large flue also present it is low at high, head at tail Temperature change, the flue-gas temperature after all converging are sent into wet desulphurization process typically at 150 DEG C or so, by induced draft blower withdraws. Prior art will generally discharge after 150 DEG C or so of flue gas desulfurization, and not only desulfurized effect is bad, and causes the energy It is a large amount of to waste.Also have and attempt to be passed through external waste heat boiler after the high-temperature flue gas of tail large flue is collected, however, more than external Heat boiler floor space is big, and need to separately found steel structure support and ash bucket, and system is numerous and diverse, long construction period.
Utility model content
Technical problem:In order to solve the defects of prior art, the utility model provides a kind of built-in sintering machine opium Road waste heat boiler device.
Technical scheme:A kind of built-in sintering machine large flue waste heat boiler device provided by the utility model, including opium Road, drum, superheater, evaporator, economizer;The large flue is divided into three areas according to flow direction of the flue gas inside it Domain, such as the flowing of flue gas right-to-left, large flue right-to-left are divided into three regions, are followed successively by high-temperature region, middle warm area and low temperature Area, one group of bellows is respectively equipped with the side wall of large flue;The drum is provided with hot water inlet, hot water outlet, steam water interface Import, saturated vapor outlet;The superheater, evaporator, economizer include flue and working medium pipeline, the overheat respectively Device, evaporator, the flue of economizer are sequentially arranged in high-temperature region with flue gas trend;The working medium pipeline of the superheater is with satisfying Connected with steam (vapor) outlet, the working medium pipeline of the evaporator is connected with hot water outlet, steam water interface import respectively, province's coal The working medium pipeline of device is connected with hot water inlet.
As an improvement, also including one group of abrasionproof grid, the abrasionproof grid is respectively arranged on superheater, evaporator, economizer Flue gas approach before.
Improved as another kind, the evaporator, the radial heat pipe that the working medium pipeline of economizer is double-layer tube wall, working medium exist The interior Bottomhole pressure of radial heat pipe;The working medium pipeline of the superheater is the heavy wall heat-transfer pipe of individual layer tube wall.
Improved as another kind, the equidistant equal diameter of one group of bellows is arranged in the side wall of large flue.
Beneficial effect:The built-in sintering machine large flue waste heat boiler device of the utility model offer is simple for structure, cost is low It is honest and clean, waste heat recovery can be carried out to the high-temperature flue gas at rear of sintering machine, vapours is pressed through in can producing and is used to generate electricity, while profit Space is greatlyd save with original large flue space.The device can not only reclaim the waste heat of sintering machine large flue, produce High-grade superheated steam, because of flue gas cool-down desulphurization cost can also be substantially reduced.
Device of the present utility model make use of the space of original large flue, and the space that external connection pipeline occupies is minimum, and drum can Some inspection platform being placed on above sintering machine, it is compact-sized.
Device of the present utility model uses radial heat pipe to be set as heat transfer element, the gas approach of each heat transmission equipment Abrasionproof grid, avoids abrasion of the dust in flue gas to heat transfer element, along with the double-layer tube wall of radial heat pipe, even if having Abrasion, also simply the outer tube damage of heat pipe, interior Bottomhole pressure boiler feedwater can never be flowed into large flue.
Device of the present utility model can utilize the support frame of former large flue, and equipment lower section still retains as original system Original ash bucket, makes mineral powder effectively be reclaimed;Meanwhile flue gas, by after waste heat recovery, temperature reduces, desulfurization water spray is reduced Amount, reduces environmentally friendly cost.
Brief description of the drawings
Fig. 1 is the structural representation of the built-in sintering machine large flue waste heat boiler device of the utility model.
Fig. 2 is the Longitudinal cross section schematic of the built-in sintering machine large flue waste heat boiler device of the utility model.
Fig. 3 is the partial enlarged drawing of the built-in sintering machine large flue waste heat boiler device of the utility model.
Embodiment
The utility model is further illustrated below.
Built-in sintering machine large flue waste heat boiler device, see Fig. 1 to 2, including large flue 1, drum 2, superheater 3, steaming Send out device 4, economizer 5;Large flue 1 is divided into three regions according to flow direction of the flue gas inside it, for example, flue gas right-to-left Flowing, the right-to-left of large flue 1 are followed successively by high-temperature region, middle warm area and low-temperature space, one are respectively equipped with the side wall of whole large flue Group bellows 6, equidistant equal diameter are set;Drum 2 is provided with hot water inlet 8, hot water outlet 9, steam water interface import 10, saturation Steam (vapor) outlet 11;Superheater 3, evaporator 4, economizer 5 include flue and working medium pipeline respectively, superheater 3, evaporator 4, The flue of economizer 5 is sequentially arranged in high-temperature region with flue gas trend;The working medium pipeline of superheater 3 and saturated vapor outlet 11 Connection, the working medium pipeline of evaporator 4 are connected with hot water outlet 9, steam water interface import 10 respectively, the working medium pipeline of economizer 5 It is connected with hot water inlet 8.
Also include one group of abrasionproof grid 7, see Fig. 3, abrasionproof grid 7 is respectively arranged on superheater 3, evaporator 4, economizer 5 Before the gas approach of flue.
Evaporator 4, the radial heat pipe that the working medium pipeline of economizer 5 is double-layer tube wall, working medium is in the inner tube of radial heat pipe Flowing;The working medium pipeline of superheater 3 is the heavy wall heat-transfer pipe of individual layer tube wall.
The operation principle of the device:
The bellows opsition dependent (or temperature) of the exhausting cooling system of sintering machine is respectively connected to the high-temperature region of large flue, medium temperature Area and low-temperature space;
In high-temperature region:Due to taking out the high-temperature flue gas come from bellows, dustiness is higher, and particle is larger, and more from large flue Tangential direction rotation flows into large flue, and high-temperature flue gas, which first passes through abrasionproof grid, makes flue gas and dust therein be evenly distributed, and avoids Working medium pipeline is set locally to produce serious abrasion;Superheater, evaporator and economizer using radial heat pipe as heat transfer element, Abrasion is reduce further, high-temperature flue gas is after radial heat pipe heat transfer element, flue gas cool-down, and the cold fluid in radial heat pipe absorbs Heat, steam is then produced for evaporator, then becomes hot water for economizer.
Heating working medium:Hot water of the cold water after economizer heats is sent into drum, and hot water is sent into evaporator by drum enters one Step is thermally formed steam water interface and is re-fed into drum, and saturated vapor is sent into superheater and further heated after drum steam-water separation Form superheated steam.
Superheater is arranged in the least significant end of large flue, herein flue-gas temperature highest, and the exhaust gas volumn flowed through is relative to evaporation To lack a lot for device and economizer, therefore superheater, in addition to abrasionproof grid is equally set in smoke inlet, heat transfer element is usual For heavy wall heat-transfer pipe, the radial heat pipe without using double-layer tube wall.

Claims (4)

  1. A kind of 1. built-in sintering machine large flue waste heat boiler device, it is characterised in that:Including large flue (1), drum (2), mistake Hot device (3), evaporator (4), economizer (5);Large flue (1) right-to-left is divided into three regions, be followed successively by high-temperature region, in Warm area and low-temperature space, one group of bellows (6) is respectively equipped with the side wall of large flue (1);The drum (2) is provided with hot water inlet (8), hot water outlet (9), steam water interface import (10), saturated vapor outlet (11);The superheater (3), evaporator (4), Economizer (5) includes flue and working medium pipeline, the superheater (3), evaporator (4), the fume pipe of economizer (5) respectively Road right-to-left is sequentially arranged in high-temperature region;The working medium pipeline of the superheater (3) is connected with saturated vapor outlet (11), described The working medium pipeline of evaporator (4) is connected with hot water outlet (9), steam water interface import (10) respectively, the work of the economizer (5) Matter pipeline is connected with hot water inlet (8).
  2. A kind of 2. built-in sintering machine large flue waste heat boiler device according to claim 1, it is characterised in that:Also include One group of abrasionproof grid (7), the abrasionproof grid (7) are respectively arranged on superheater (3), evaporator (4), the fume pipe of economizer (5) Before the gas approach in road.
  3. A kind of 3. built-in sintering machine large flue waste heat boiler device according to claim 1, it is characterised in that:The steaming Send out device (4), the radial heat pipe that the working medium pipeline of economizer (5) is double-layer tube wall, interior Bottomhole pressure of the working medium in radial heat pipe;Institute The working medium pipeline for stating superheater (3) is the heavy wall heat-transfer pipe of individual layer tube wall.
  4. A kind of 4. built-in sintering machine large flue waste heat boiler device according to claim 1, it is characterised in that:Described one Equidistantly equal diameter is arranged in the side wall of large flue (1) group bellows (6).
CN201720415042.0U 2017-04-19 2017-04-19 A kind of built-in sintering machine large flue waste heat boiler device Active CN206695625U (en)

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Application Number Priority Date Filing Date Title
CN201720415042.0U CN206695625U (en) 2017-04-19 2017-04-19 A kind of built-in sintering machine large flue waste heat boiler device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108444305A (en) * 2018-06-26 2018-08-24 中冶节能环保有限责任公司 A kind of device and method of planar sintering machine tandem flue gas waste heat recovery

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108444305A (en) * 2018-06-26 2018-08-24 中冶节能环保有限责任公司 A kind of device and method of planar sintering machine tandem flue gas waste heat recovery

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Address after: 210000 No. 749, Binjiang Road, Jiangning Economic Development Zone, Nanjing, Jiangsu

Patentee after: Nanjing Huadian energy saving and environmental protection Co.,Ltd.

Address before: 801, Phoenix International Building, No. 389 Central Road, Nanjing, Jiangsu Province, 210000

Patentee before: NANJING HUADIAN ENERGY-SAVING AND ENVIRONMENTAL PROTECTION EQUIPMENT Co.,Ltd.

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