CN203037088U - Waste heat recovery device of high-temperature melted slag in water quenching method - Google Patents
Waste heat recovery device of high-temperature melted slag in water quenching method Download PDFInfo
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- CN203037088U CN203037088U CN2013200158675U CN201320015867U CN203037088U CN 203037088 U CN203037088 U CN 203037088U CN 2013200158675 U CN2013200158675 U CN 2013200158675U CN 201320015867 U CN201320015867 U CN 201320015867U CN 203037088 U CN203037088 U CN 203037088U
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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
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Abstract
The utility model provides a waste heat recovery device of high-temperature melted slag in a water quenching method. The waste heat recovery device comprises a melted slag discharging tube, an upper section of a jacketed tube, a fin tube bundle of an evaporator, a fin tube bundle of a coal economizer, a lower section of the jacketed tube, a water slag groove, a water feeding pump of the water slag groove, a water feeding pump of a drum, the drum and a slag outlet machine. The coal economizer is composed of the fin tube bundle of the coal economizer and the lower section of the jacketed tube, and the evaporator is composed of the tube bundle of the evaporator, the upper section of the jacketed tube and a jacket of the melted slag discharging tube in serial mode. The waste heat recovering device performs heat recovery on the high-temperature melted slag step by step, can recover a large number of waste heat of the high-temperature slag, maintains the high activity of the slag, facilitates the following comprehensive utilization and simultaneously thoroughly improves the operation environment of devices.
Description
Technical field
The utility model relates to the waste-heat recovery device in fields such as chemical industry, metallurgy and energy-conserving and environment-protective, relates in particular to
OnePlant high-temperature fusion furnace slag granulating method waste-heat recovery device.
Background technology
Fields such as phosphorous chemical industry, metallurgy and energy-conserving and environment-protective all produce this byproduct of high-temperature fusion slag in process of production.These high-temperature fusion slags all have characteristics such as high temperature, high enthalpy, belong to high-quality residual heat resources.Be the accessory substance of blast furnace ironmaking as blast furnace slag, its temperature of discharging from blast furnace is at 1450 ~ 1650 ℃, and heat content is about 1870MJ/t; Heat content during 1427 ℃ of yellow phosphorus stove fusion phosphorus slags is that 1887.83kJ/kg, specific heat capacity are 1.256kJ/ (kg ℃).Therefore, carrying out waste heat recovery and the comprehensive utilization of high-temperature fusion slag, is the energy-saving and cost-reducing effective ways of relevant industries.
In present industrial production, the processing of high-temperature fusion slag mainly is to adopt water quenching.But there are some shortcomings in the water quenching treatment process: (1) water quenching slag is handled a large amount of water of needs and is reduced its high temperature; (2) some elements meeting contaminant water resources in the high-temperature fusion slag; (3) can produce some sulfide, contaminated environment after the shrend; (4) after the shrend, the high-temperature fusion slag is active not enough, influences follow-up comprehensive utilization; (5) high-temperature fusion slag dryingization is that after the shrend one must be through step; (6) the high-temperature fusion slag contains a large amount of heat energy and does not reclaim again and be wasted.
Mode as an alternative, every profession and trade often adopts high-temperature fusion slag chilling dry type granulating technique, but there is shortcoming of operating cost height and grain slag quality (activity) difference in it, has restricted its competitiveness.Chilling dry type shotting mainly contains 3 kinds: drum process, wind quench method and centrifugal granulation method.Wherein, drum process exists shortcomings such as disposal ability is not high, equipment operation rate is low, is not suitable for the extensive high-temperature fusion slag of handling continuously at the scene; Wind huge, the complex structure of method equipment volume of quenching is made, difficulty is installed, and cost is corresponding also high.Secondly particle diameter distribution wider range of this method is unfavorable for subsequent treatment.The centrifugal granulation method is in order to accelerate chilling speed; must strengthen the flow of cooling medium (being generally air); the quality that can cause reclaiming heat so not high (show as after the heat exchange mean temperature of gas low) has caused the contradiction between cooling velocity and the recuperation of heat effect.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of high-temperature fusion furnace slag granulating method waste-heat recovery device, and takes full advantage of existing slag treatment facility simultaneously, with effective recovery problem of the heat that solves the high-temperature fusion slag.
Basic technical scheme of the present utility model is, on grain slag groove top, set gradually slag comb, jacket pipe, evaporator fin tube bank and economizer finned-tube bundle from top to bottom, wherein jacket pipe comprises jacket pipe epimere and jacket pipe hypomere, chuck by evaporimeter tube bank, jacket pipe epimere and slag comb is composed in series evaporimeter, be composed in series economizer by economizer finned-tube bundle and jacket pipe hypomere, realize waste heat recovery step by step, and the steam of generation certain pressure and temperature, high temperature furnace slag is slagged tap by mucking machine after lowering the temperature.
Specifically, high-temperature fusion furnace slag granulating method waste-heat recovery device described in the utility model comprises slag comb, grain slag groove, grain slag groove feed pump and mucking machine; Top at the grain slag groove arranges jacket pipe, described jacket pipe comprises jacket pipe epimere and the jacket pipe hypomere that is separated by an annular slab, the jacket pipe epimere is communicated with the slag comb, insert in the grain slag groove bottom of jacket pipe hypomere, described slag comb, jacket pipe epimere and jacket pipe hypomere form the slag passage, simultaneously in the grain slag groove, the inside and outside formation water liquid level difference of described jacket pipe hypomere; The top of described jacket pipe hypomere arranges the horizontal segment that is adjacent to the slag passage, and the evaporator fin tube bank is set in this horizontal segment, and this horizontal segment end is offered the slag water quenching steam outlet simultaneously, makes this horizontal segment form slag water quenching steam passing away; Described evaporator fin tube bank is communicated with a drum by condensate descending and vapor uptake; Described jacket pipe is the water leg pipe, and wherein, the delivery port of jacket pipe hypomere is communicated with the water inlet of drum, and the carbonated drink import of jacket pipe epimere is communicated with the outlet of evaporator fin tube bank, and the carbonated drink outlet of jacket pipe epimere is communicated with drum.
For melting slag waste heat is reclaimed in further realization step by step, in the horizontal segment of jacket pipe hypomere, along slag water quenching steam discharge currents to, downstream in the evaporator fin tube bank arranges the economizer finned-tube bundle, the water inlet of described economizer finned-tube bundle is communicated with the feed pump of drum, and the delivery port of economizer finned-tube bundle is communicated with the water inlet of jacket pipe hypomere.
Simultaneously, in order further to improve heat recovery rate, described slag comb is the water leg pipe, offers the steam water interface import in its lower end and is communicated with the carbonated drink outlet of jacket pipe epimere, and the carbonated drink outlet of offering in the top is communicated with drum.
Equipment is installed for convenience, and described slag comb outside wall surface is connected with the outside wall surface of jacket pipe, and is laid with heat-insulation layer.
Described economizer finned-tube bundle can adopt finned tube or light pipe as heat transfer element and can be multistage combined, the wing height of preferred fin is that 10 millimeters to 20 millimeters, pitch are 5 millimeters to 25 millimeters, heat transfer element can be arranged vertically, also can be horizontally disposed or be in tilted layout.
Described evaporator fin tube bank can adopt finned tube or light pipe as heat transfer element and for multistage combined equally; The wing height of preferred fin is that 10 millimeters to 20 millimeters, pitch are 5 millimeters to 25 millimeters, can be arranged vertically, and also tiltable is arranged.
Described grain slag groove feed pump and drum feed pump all can adopt frequency control, control the liquid level of grain slag groove and drum automatically.
Described mucking machine adopts the spiral load mode to slag tap, and adopts conveying worm.
The utility model compared with prior art has following advantage: adopt system and device, carry out high-temperature fusion slag heat recovery step by step, reach minimizing, innoxious and disposal of resources and comprehensive utilization; Both fully reclaimed the high temperature furnace slag waste heat, kept the high activity of slag again, be conducive to follow-up comprehensive utilization, and simultaneously operating environment had thoroughly been improved; The steam that the system recoveries heat produces can drive the turbine unit, also can carry out cogeneration or is incorporated into the power networks.
Description of drawings
Fig. 1 is overall structure schematic diagram of the present utility model.
Among the figure: 1, slag comb, 2, the jacket pipe epimere, 3, the evaporator fin tube bank, 4, the economizer finned-tube bundle, 5, jacket pipe hypomere, 6, heat-insulation layer, 7, the grain slag groove, 8, grain slag groove feed pump, 9, the drum feed pump, 10, drum, 11, mucking machine, 12, economizer finned-tube bundle feed pipe, 13, the drum feed pipe, 14, economizer finned-tube bundle outlet pipe, 15, vapor uptake, 16, condensate descending, 17, steam evacuation pipe, 18, steam (vapor) outlet, 19, the drum steam (vapor) outlet.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described:
As shown in Figure 1, the utility model comprises slag comb 1, jacket pipe epimere 2, evaporator fin tube bank 3, economizer finned-tube bundle 4, jacket pipe hypomere 5, heat-insulation layer 6, grain slag groove 7, grain slag groove feed pump 8, drum feed pump 9, drum 10, mucking machine 11, economizer finned-tube bundle feed pipe 12, drum feed pipe 13, economizer finned-tube bundle outlet pipe 14, vapor uptake 15, condensate descending 16, steam evacuation pipe 17, steam (vapor) outlet 18 and drum steam (vapor) outlet 19; Wherein: economizer finned-tube bundle 4 and jacket pipe hypomere 5 are composed in series economizer, and the chuck of evaporimeter tube bank 3, jacket pipe epimere 2 and slag comb 1 is composed in series evaporimeter; The outer wall lower end of slag comb 1 and the upper end of jacket pipe epimere 2 are connected, and the lower end of jacket pipe epimere 2 connects the upper end of jacket pipe hypomere 5, and the centre separates with annular slab, and insert in the grain slag groove 7 lower end of jacket pipe hypomere 5; The upper level outlet section of jacket pipe hypomere 5 is provided with evaporator fin tube bank 3 and economizer finned-tube bundle 4.
As shown in Figure 1, slag comb 1 is the water leg tubular construction, offers the steam water interface import in its lower end, connects with jacket pipe epimere 2, offers the carbonated drink outlet in the top, connects with drum 10, and is laid with heat-insulation layer 6 in its outside wall surface.
As shown in Figure 1, jacket pipe epimere 2 is the water leg tubular construction, outside wall surface is laid with heat-insulation layer 6, the carbonated drink import is offered in the chuck lower end, the carbonated drink outlet is offered in the chuck upper end, jacket pipe epimere 2 connects evaporator fin tube bank 3 by the carbonated drink import, connects slag comb 1 by the carbonated drink outlet, and is connected in series as the circulation passage of high-temperature fusion slag with jacket pipe hypomere 5.
As shown in Figure 1, jacket pipe hypomere 5 is the water leg tubular construction, and outside wall surface is laid with heat-insulation layer 6.Jacket pipe hypomere 5 upper ends and jacket pipe epimere 2 are connected in series as the circulation passage of high-temperature fusion slag, and insert in the grain slag groove 7 lower end, in grain slag groove 7, and the inside and outside formation water liquid level difference h of jacket pipe hypomere 5.Water inlet is offered in the lower end of jacket pipe hypomere 5, and water out is offered in the upper end.Jacket pipe hypomere 5 is connected with economizer finned-tube bundle 4 by water inlet, is connected with drum 10 by water out.
Economizer finned-tube bundle 4 can adopt finned tube or light pipe as heat transfer element and for multistage combined, and the wing height of fin is that 10 millimeters to 20 millimeters, pitch are 5 millimeters to 25 millimeters, can be arranged vertically, also can be horizontally disposed or be in tilted layout.
Evaporator fin tube bank 3 can adopt finned tube or light pipe as heat transfer element and for multistage combined; The wing height of fin is that 10 millimeters to 20 millimeters, pitch are 5 millimeters to 25 millimeters, can be arranged vertically, and also tiltable is arranged.
Grain slag groove feed pump 8 and drum feed pump 9 all adopt frequency control, control the liquid level of grain slag groove 7 and drum 10 automatically.
Mucking machine 11 adopts the spiral load mode to slag tap.
As shown in Figure 1, evaporator fin tube bank 3 is set in turn in along the steam flow direction with economizer finned-tube bundle 4 and absorbs heat in the vapor stream circulation passage step by step, the steam of the feedwater of preheating drum and generation certain pressure and temperature.Drum 10 feedwater utilize economizer finned-tube bundle 4 and jacket pipe hypomere 5 to carry out preheating step by step, make the waste heat of high-temperature fusion slag be able to fully and completely utilize, and have further improved utilization rate of waste heat.
The concrete working method of the utility model is as follows:
The high-temperature fusion slag successively by jacket pipe epimere 2 and jacket pipe hypomere 5, again by mucking machine 11 adopts spiral load modes slag tap after entering grain slag groove 7 from slag comb 1.
Water in the grain slag groove produces superheated steam after fully absorbing the heat of high-temperature fusion slag.Superheated steam is created on jacket pipe hypomere 5, and by the pressure of the water-head h in the grain slag groove as shown in Figure 1, by being arranged on the evaporator fin tube bank 3 and economizer finned-tube bundle 4 of jacket pipe hypomere 5 horizontal zones, enter the 17 back emptying of steam evacuation pipe from steam (vapor) outlet 18 after the heat exchange step by step successively.
Soft water enters economizer finned-tube bundle 4 by drum feed pump 9, enter the bottom water inlet of jacket pipe hypomere 5 after the preheating by economizer finned-tube bundle outlet pipe 14, in the chuck of jacket pipe hypomere 5, again after the preheating, send into drum 10 from the top delivery port of jacket pipe hypomere 5 through drum feed pipe 13.By condensate descending 16 and the vapor uptake 15 that links to each other with drum 10, evaporator fin tube bank 3, jacket pipe epimere 2 and slag comb 1 form the system of steaming, in drum 10, carry out carbonated drink separation, obtain saturated vapor, through drum steam (vapor) outlet 19, send into pipe network or make his usefulness by jet chimney.This system of steaming adopts Natural Circulation.
The utility model adopts this waste heat recovery and the device that steams, carry out high-temperature fusion slag heat recovery step by step, both fully reclaimed the high temperature furnace slag waste heat, the high activity that keeps slag again, be conducive to follow-up comprehensive utilization, simultaneously operating environment is thoroughly improved, be reached minimizing, innoxious and disposal of resources and comprehensive utilization.
Claims (8)
1. a high-temperature fusion furnace slag granulating method waste-heat recovery device comprises slag comb, grain slag groove, grain slag groove feed pump and mucking machine; It is characterized in that: the top at the grain slag groove arranges jacket pipe, described jacket pipe comprises jacket pipe epimere and the jacket pipe hypomere that is separated by an annular slab, the jacket pipe epimere is communicated with the slag comb, insert in the grain slag groove bottom of jacket pipe hypomere, described slag comb, jacket pipe epimere and jacket pipe hypomere form the slag passage, simultaneously in the grain slag groove, the inside and outside formation water liquid level difference of described jacket pipe hypomere; The top of described jacket pipe hypomere arranges the horizontal segment that is adjacent to the slag passage, and the evaporator fin tube bank is set in this horizontal segment, and this horizontal segment end is offered the slag water quenching steam outlet simultaneously, makes this horizontal segment form slag water quenching steam passing away; Described evaporator fin tube bank is communicated with a drum by condensate descending and vapor uptake; Described jacket pipe is the water leg pipe, and wherein, the delivery port of jacket pipe hypomere is communicated with the water inlet of drum, and the carbonated drink import of jacket pipe epimere is communicated with the outlet of evaporator fin tube bank, and the carbonated drink outlet of jacket pipe epimere is communicated with drum.
2. high-temperature fusion furnace slag granulating method waste-heat recovery device according to claim 1, it is characterized in that: in the horizontal segment of jacket pipe hypomere, along slag water quenching steam discharge currents to, downstream in the evaporator fin tube bank arranges the economizer finned-tube bundle, the water inlet of described economizer finned-tube bundle is communicated with the feed pump of drum, and the delivery port of economizer finned-tube bundle is communicated with the water inlet of jacket pipe hypomere.
3. high-temperature fusion furnace slag granulating method waste-heat recovery device according to claim 2, it is characterized in that: described slag comb is the water leg pipe, offer the steam water interface import in its lower end and be communicated with the carbonated drink outlet of jacket pipe epimere, the carbonated drink outlet of offering in the top is communicated with drum.
4. high-temperature fusion furnace slag granulating method waste-heat recovery device according to claim 3, it is characterized in that: the outside wall surface of described slag comb is connected with the outside wall surface of jacket pipe, and the outside wall surface of the outside wall surface of slag comb and jacket pipe is all laid heat-insulation layer.
5. high-temperature fusion furnace slag granulating method waste-heat recovery device according to claim 4, it is characterized in that: the heat transfer element of described economizer finned-tube bundle is finned tube, the wing height of fin is that 10 millimeters-20 millimeters, pitch are 5 millimeters-25 millimeters, and finned tube is vertical or be in tilted layout.
6. high-temperature fusion furnace slag granulating method waste-heat recovery device according to claim 4, it is characterized in that: the heat transfer element of described evaporator fin tube bank is finned tube, the wing height of fin is that 10 millimeters-20 millimeters, pitch are 5 millimeters-25 millimeters, and finned tube is vertical or be in tilted layout.
7. high-temperature fusion furnace slag granulating method waste-heat recovery device according to claim 4, it is characterized in that: described grain slag groove feed pump and drum feed pump are frequency control, respectively the liquid level of control grain slag groove and drum automatically.
8. high-temperature fusion furnace slag granulating method waste-heat recovery device according to claim 4, it is characterized in that: described mucking machine is conveying worm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200158675U CN203037088U (en) | 2013-01-14 | 2013-01-14 | Waste heat recovery device of high-temperature melted slag in water quenching method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200158675U CN203037088U (en) | 2013-01-14 | 2013-01-14 | Waste heat recovery device of high-temperature melted slag in water quenching method |
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| CN203037088U true CN203037088U (en) | 2013-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013200158675U Withdrawn - After Issue CN203037088U (en) | 2013-01-14 | 2013-01-14 | Waste heat recovery device of high-temperature melted slag in water quenching method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103014203A (en) * | 2013-01-14 | 2013-04-03 | 南京圣诺热管有限公司 | High-temperature molten slag water-quenching waste heat recovery device |
| CN107906971A (en) * | 2017-12-07 | 2018-04-13 | 无锡三达环保科技有限公司 | A kind of blast furnace mineral hot furnace slag cures the high, normal, basic waste heat recycling system of heat |
-
2013
- 2013-01-14 CN CN2013200158675U patent/CN203037088U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103014203A (en) * | 2013-01-14 | 2013-04-03 | 南京圣诺热管有限公司 | High-temperature molten slag water-quenching waste heat recovery device |
| CN107906971A (en) * | 2017-12-07 | 2018-04-13 | 无锡三达环保科技有限公司 | A kind of blast furnace mineral hot furnace slag cures the high, normal, basic waste heat recycling system of heat |
| CN107906971B (en) * | 2017-12-07 | 2023-09-08 | 无锡三达环保科技有限公司 | High, medium and low waste heat recycling system for solidification heat of blast furnace ore slag |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130703 Effective date of abandoning: 20140409 |
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| RGAV | Abandon patent right to avoid regrant |