CN203848696U - Heat accumulating type settling chamber waste heat storage device - Google Patents

Heat accumulating type settling chamber waste heat storage device Download PDF

Info

Publication number
CN203848696U
CN203848696U CN201420171400.4U CN201420171400U CN203848696U CN 203848696 U CN203848696 U CN 203848696U CN 201420171400 U CN201420171400 U CN 201420171400U CN 203848696 U CN203848696 U CN 203848696U
Authority
CN
China
Prior art keywords
water
accumulating type
waste heat
heat accumulating
cooled
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201420171400.4U
Other languages
Chinese (zh)
Inventor
杨文滨
陈志良
曹先常
孔令斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Baosteel Energy Service Co Ltd
Original Assignee
Shanghai Baosteel Energy Service Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Baosteel Energy Service Co Ltd filed Critical Shanghai Baosteel Energy Service Co Ltd
Priority to CN201420171400.4U priority Critical patent/CN203848696U/en
Application granted granted Critical
Publication of CN203848696U publication Critical patent/CN203848696U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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 utility model discloses a heat accumulating type settling chamber waste heat storage device. The heat accumulating type settling chamber waste heat storage device comprises a water cooling smoke duct, a heat accumulating type trellis wall, a steam pocket and a deoxidizing device, wherein the water cooling smoke duct comprises an upper collection box and two groups of water cooling membrane walls arranged on the front side and the rear side of the upper collection box, each water cooling membrane wall is formed by welding a plurality of steel tubes which are abreast arranged, the upper ends of the two groups of the water cooling membrane walls are communicated with the upper collection box, the lower ends of the two groups of the water cooling membrane walls are respectively communicated with a lower collection box, the upper collection box and the lower collection box are both connected with the steam pocket so as to form cooling water circulation, a plurality of cone ash buckets are abreast arranged on the lower side of the lower collection box, and a sealing gas flue is formed by the cone ash buckets, the water cooling membrane walls and the upper collection box. The heat accumulating type settling chamber waste heat storage device recycles and stores flue gas waste heat in a high temperature segment unstable in fluctuation, which is generated during the production process of an electric furnace, discharges the flue gas waste heat when flue gas temperature drops during a steel tapping period, and not only increases recovery amount of the high temperature flue gas waste heat, but also facilitates waste heat recovery steam fluctuation amplitude reduction of the electric furnace, and furthermore facilitates stable running of a steam system.

Description

A kind of heat accumulating type expansion chamber waste heat storage apparatus
Technical field
The utility model relates to the technical field that industrial afterheat recovery is utilized, particularly a kind of heat accumulating type expansion chamber waste heat storage apparatus.
Background technology
At present, domestic iron and steel enterprises is further to lower electric furnace steel making cost, and electric furnace operation generally occurs that molten iron converts scrap smelting pattern, and molten iron ratio can be up to 70 ~ 90%, present the trend of furnace equipment " converter ".Along with electric furnace enters, stove molten iron ratio increases and the minimizing of steel scrap consumption, causes the concentration of the CO of electric furnace flue gas, temperature to increase, and reclaims electric furnace flue gas waste heat more meaningful.
Due to the periodicity impact of electric furnace smelting, the fume afterheat of electric furnace generation discontinuity is difficult to recovery and is utilized, conventionally after the mode of employing " water-cooled+air cooling " is cooled to 200 DEG C, discharge through dedusting, a large amount of fume afterheats are dispersed in atmosphere through supercooled water, air, cause but the furnace flue gas exhaust heat waste of sending a telegram here; Meanwhile, also need to increase additional power, water resources consumption due to cooling.
Minority electric furnace is by scrap steel preheating mode or heat pipe waste heat boiler recovery section electric furnace flue gas waste heat at present, and wherein waste steel for electric furnace preheating technology is because factors such as being subject to the type of furnace, layout, maintenance affects, and result of use is all undesirable both at home and abroad.On the other hand, by adopting heat pipe or convection type waste heat boiler to carry out electric furnace flue gas waste heat recovery, recovered steam enters storage heater, and then heat supply user uses, and electric furnace waste heat recovery has obtained certain progress.Although residual neat recovering system is provided with storage heater, because electric furnace recovered steam flow, pressure oscillation cause being more greatly difficult to mate suitable steam user, finally affect the actual effect of electric furnace waste heat recovery, cause waste heat recovery efficiency low.Therefore electric furnace waste heat recovery is faced with how the residual heat resources that intermittently produce to be converted to stable output steam and how to improve electric furnace waste heat recovery efficiency becomes the subject matter of electric furnace flue gas waste heat recovery.
Utility model content
In order to solve the problem of telling somebody what one's real intentions are for the efficiency of being interrupted electric furnace flue gas waste heat recovery in prior art, the utility model provides a kind of heat accumulating type expansion chamber waste heat storage apparatus, comprising:
Water-cooled flue, described smoke gas flow is through described water-cooled flue and transfer heat to the sidewall of described water-cooled flue;
One or more heat accumulating type trellis, distributes and be arranged in described water-cooled flue, and by spaced apart described water-cooled flue, described smoke gas flow is through described heat accumulating type trellis;
Drum, is connected with the sidewall of described water-cooled flue, is full of water and forms a water circulation between the two in the sidewall of described water-cooled flue and described drum;
Oxygen-eliminating device, one end is connected with described drum, and the other end is connected with water source, and described water source is input in described drum after described oxygen-eliminating device.
Preferably, upper collecting chamber, is connected with described drum;
Two groups of water-cooled membrane walls, be symmetricly set on the both sides, front and back of described upper collecting chamber, the upper end of described two groups of water-cooled membrane walls and described upper collecting chamber are connected to form the passage that a cross section is " Π " shape, described two groups of water-cooled membrane wall lower ends are all connected with a lower header, and two described lower headers are all connected with described drum;
Some taper ash buckets, be arranged side by side the downside at described lower header, and the opening of described taper meeting ash bucket is towards the bottom of described upper collecting chamber, and described some taper ash buckets and described upper collecting chamber and described two groups of water-cooled membrane walls form a closed channel for described smoke gas flow warp.
Preferably, described water-cooled membrane wall is made up of some steel pipes, between adjacent described steel pipe, passes through steel plate integral solder together; The upper end of described steel pipe is connected with described upper collecting chamber, and the lower end of described steel pipe is connected with described lower header.
Preferably, described heat accumulating type trellis is arranged on the boundary of taper ash bucket described in adjacent two.
Preferably, on the outside of described water-cooled flue, be provided with heat-insulation layer.
Preferably, described heat accumulating type trellis is made up of some ceramic honeycomb bricks.
Preferably, between described oxygen-eliminating device and described water source, be provided with the first feed pump.
Preferably, between described oxygen-eliminating device and described drum, be provided with the second feed pump.
The utility model, owing to adopting above technical scheme, makes it compared with prior art, has following advantage and good effect:
(1) the utility model arranges heat accumulating type trellis and carries out the measure of peak clipping Pinggu in water-cooled flue, reduces the impact of electric furnace flue gas fluctuation by adopting heat accumulating type trellis to emit portion's componentwise when storage compartment heat, low temperature when the high temperature; The unsettled fume afterheat of fluctuation producing in electric furnace steel making production process the most at last, by the superheated steam of this heat accumulating type water-cooling sedimentation chamber recovery waste heat device stable output;
(2) the utility model is by arranging heat accumulating type trellis in water-cooled flue, make through flue gas flow rate reduce, the large preliminary sedimentation of dust granules, has alleviated the impact of dust on other equipment of rear portion, has reduced dust arrester load;
(3) in the utility model, the flow through flue gas of water-cooled flue of being arranged so that of heat accumulating type trellis can contact with water-cooled flue sufficiently uniformly, is conducive to water-cooled flue and better absorbs heat, improves heat recovery efficiency.
Brief description of the drawings
By reference to the accompanying drawings, by the detailed description of stating below, can more clearly understand above-mentioned and other feature and advantage of the present utility model, wherein:
The front view of the heat accumulating type expansion chamber waste heat storage apparatus that Fig. 1 provides for the utility model;
The side view of the heat accumulating type expansion chamber waste heat storage apparatus that Fig. 2 provides for the utility model.
Symbol description:
1-water-cooled flue
2-heat accumulating type trellis
3-taper ash bucket
4-lower header
5-water-cooled membrane wall
6-heat-insulation layer
7-pure water pump
8-oxygen-eliminating device
9-boiler feed pump
10-drum
11-down-comer
12-tedge
13-upper collecting chamber.
Detailed description of the invention
Referring to the accompanying drawing that the utility model embodiment is shown, the utility model below will be described in more detail.But the utility model can be with many multi-form realizations, and should not be construed as the restriction of the embodiment being subject in this proposition.On the contrary, it is abundant and complete open in order to reach proposing these embodiment, and makes those skilled in the art understand scope of the present utility model completely.In these accompanying drawings, for clarity sake, may amplify size and the relative size in layer and region.
Refer now to the embodiment that Fig. 1 is provided in detail by the heat accumulating type expansion chamber waste heat storage apparatus providing according to the utility model, it mainly comprises water-cooled flue 1, heat accumulating type trellis 2, drum 10 and oxygen-eliminating device 8, this utility model is by the interior heat accumulating type trellis 2 that arranges of water-cooled flue 1, play the effect in peak clipping Pinggu, the unsettled fume afterheat of fluctuation producing in electric furnace steel making production process the most at last, by the superheated steam of this heat accumulating type water-cooling sedimentation chamber recovery waste heat device stable output.
Concrete, water-cooled flue 1 comprises that upper collecting chamber 13 and 5, two groups of water-cooled membrane walls 5 of two groups of water-cooled membrane walls are symmetricly set on the both sides, front and back of upper collecting chamber 13, along upper collecting chamber 13 length direction settings; The upper end of two groups of water-cooled membrane walls 5 is connected with upper collecting chamber 13, and the lower end of two groups of water-cooled membrane walls 5 is all connected with separately between 4, two groups of water-cooled membrane walls 5 of a lower header and upper collecting chamber 13 and forms the passage that a cross section is " Π " type.Water-cooled flue 1 also comprises some taper ash buckets 3, some taper ash buckets 3 are arranged side by side the downside at lower header 13, thereby the water-cooled flue 1 of sealing before and after making to form Shang Xia between upper collecting chamber 13, water-cooled membrane wall 5, lower header 4 and taper ash bucket 3, the smoke gas flow producing in electric furnace steel making is through this passage.
Wherein, every group of water-cooled membrane wall 5 includes the steel pipe of some " Γ " types that connect side by side, between adjacent each steel pipe, formed water-cooled membrane wall 5 by steel disc integral solder; The upper end of all steel pipes in every group of water-cooled membrane wall 5 is all connected with upper collecting chamber 13, and the lower end of all steel pipes all lower header 4 corresponding with these group water-cooled membrane wall 5 belows is connected.Certainly, the structure of steel pipe, size and quantity can be adjusted as the case may be, are not restricted herein.In the present embodiment, the outside of water-cooled flue 1 is also provided with heat-insulation layer 6, for the passage of the heat of the flue gas of the water-cooled flue 1 that prevents from flowing through, thereby has improved the efficiency that flue gas heat reclaims.
In the present embodiment, the sidewall of drum 10 or upper end are connected with upper collecting chamber 13 by a tedge 12, two lower headers 4 are connected with the bottom of drum 10 by a down-comer pipe 11 respectively, thereby form: the steam/water circulating of drum 10 → down-comer 11 → lower header 4 → water-cooled membrane wall 5 → upper collecting chamber 13 → tedge 12 → drum 10.Drum 10 is connected with oxygen-eliminating device 8, and oxygen-eliminating device 8 is connected with a water source; Wherein between water source and oxygen-eliminating device 8, be provided with the first water pump 7, between oxygen-eliminating device 8, be provided with the second water pump 9; Water source is delivered into water in oxygen-eliminating device 8 by the first water pump 7, by carrying out moisturizing by the second water pump 9 to the water circulation channel between drum 10 and water-cooled flue 1 after oxygen-eliminating device 8 deoxygenations.First, under the effect of the second water pump 9, water after deoxygenation is input in drum 10, water in drum 10 flow into by down-comer 11 under the effect of self gravitation that in lower header 4, water-cooled membrane wall 5 and upper collecting chamber 13, (the interior water of water-cooled membrane wall 5 is become steam water interface by flue gas, density reduces, form pressure reduction with drum, water can be flowed in lower header 4, water-cooled membrane wall 5 and upper collecting chamber 13 under the Action of Gravity Field of self, it is gravity combined-circulation once-through boiler general principle); When high-temperature flue gas is flowed through water-cooled flue 1, transfer heat to lower header 4, steel pipe and upper collecting chamber 13, make the water intensification evaporation in lower header 4, steel pipe and upper collecting chamber 13, then the steam that evaporation obtains rises in upper collecting chamber 13, and be input in drum 10 by tedge 12, and export to user's use at the stable steam of the interior formation of drum 10, thereby realize the effect of flue gas heat recovery.In the present embodiment, drum 10 is positioned at the top of water-cooled flue 1, therefore between drum 10 and water-cooled flue 1, can circulate by the gravity of water, certainly between drum 10 and water-cooled flue 1, also can promote water circulation by adding water pump, thereby make the utility model be applicable to the situation of various position relationships between drum 10 and water-cooled flue, be not restricted herein.
In the present embodiment, this heat accumulating type expansion chamber waste heat storage apparatus also comprises some heat accumulating type trellis 2, some heat accumulating type trellis 2 are arranged in water-cooled flue 1, and the cross section along water-cooled flue 1 arranges, water-cooled flue 1 is divided into some sections, make smoke gas flow through heat accumulating type trellis 2, as shown in fig. 1; The upper end of heat accumulating type trellis 2 is connected with upper collecting chamber 13, and lower end is connected to the boundary of adjacent conical ash bucket.In the present embodiment, heat accumulating type trellis 2 is turned and is formed by several ceramic honeycombs, wherein can, according to the requirement of flue gas resistance and amount of stored heat, several ceramic honeycombs be turned to the heat accumulating type trellis that is combined into difformity size; In addition, the utility model also can adopt other heat-storing materials to replace ceramic honeycomb to turn, and is not restricted herein.Smoke gas flow is in the time of heat accumulating type trellis 2, and first, heat accumulating type trellis 2 absorbs heat, plays the effect of accumulation of heat; Secondly, heat accumulating type trellis 2 makes the Speed Reduction of the flue gas of flowing through, on the one hand flue gas is contacted sufficiently uniformly with steel pipe with upper collecting chamber 13, make on the other hand the preliminary sedimentation of large dust granules in flue gas, collected by taper ash bucket 3, thereby alleviate the impact of dust on other equipment of rear portion, reduced dust arrester load.
A kind of heat accumulating type expansion chamber waste heat storage apparatus that the utility model provides, its workflow is specific as follows:
While steel-making in electric furnace, the temperature of the flue gas of electric furnace output is high, flow is large, after the flue gas that enters water-cooled flue 1 transfers heat to the water for cooling in accumulation of heat trellis 2 and water-cooled flue 1 by the mode of heat convection, discharges.After the waste heat of the deaerated water absorption flue gas in water-cooled flue 1, heat up and evaporate, and be input in drum 10 by tedge 12, and export to user's use at the stable steam of the interior formation of drum 10; Wherein, be input in drum 10 from the deaerated water of oxygen-eliminating device 8, and by Action of Gravity Field, circulation between drum 10 and water-cooling screen assembly (4,5,13).Now, because the temperature of flue gas is high, heat abundance, hot trellis 2 is in heat absorption state, and the heat of part high-temperature flue gas is absorbed and stores by accumulation of heat trellis 2, thereby plays the effect of peak clipping.
In the time of tapping, the temperature of the flue gas of electric furnace output compared with low, flow is little, the flue gas that enters water-cooled flue 1 will be discharged after the water for cooling in heat water-cooled flue 1 by the mode of heat convection, now because the temperature of the flue gas of flowing through is lower, accumulation of heat trellis 2, in heat release state, mainly transfers heat to the water in water-cooled flue 1 by radiation heat transfer mode.After the waste heat of the deaerated water absorption flue gas in water-cooled flue 1 and the heat that accumulation of heat trellis 2 discharges, heat up and evaporate, in the stable steam output of the interior formation of drum 10.
The utility model carries out the measure of peak clipping Pinggu by heat accumulating type trellis is set in water-cooled flue, by adopting heat accumulating type water-cooled membrane wall that unsettled the fluctuation producing in electric furnace production process high temperature section flue gas waste heat recovery is stored, when during tapping, flue-gas temperature declines, discharge, not only increase high-temperature flue gas waste heat recovery, and be conducive to reduce electric furnace waste heat recovery steam fluctuating range, be convenient to vapour system stable operation.Thereby have, the residual heat resources of gap generation are converted to and stablize steam output, and improved the effect of electric furnace waste heat recovery efficiency.
In sum, the utility model provides a kind of heat accumulating type expansion chamber waste heat storage apparatus, mainly comprises water-cooled flue, heat accumulating type trellis, drum and oxygen-eliminating device.Water-cooled flue comprises upper collecting chamber and two groups of water-cooled membrane walls that are arranged on both sides, upper collecting chamber front and back, and water-cooled membrane wall is welded to form side by side by many steel pipes; The upper end of two groups of water-cooled membrane walls is all connected with upper collecting chamber, and lower end is communicated with respectively a lower header; Upper collecting chamber is all connected with drum with lower header, forms a cooling water circulation.Lower header downside has been arranged side by side some taper ash buckets, and forms a flue sealing with water-cooled membrane wall, upper collecting chamber.The utility model by arranging heat accumulating type trellis in water-cooled flue, unsettled the fluctuation producing in electric furnace production process high temperature section flue gas waste heat recovery is stored, when during tapping, flue-gas temperature declines, discharge, not only increase high-temperature flue gas waste heat recovery, and be conducive to reduce electric furnace waste heat recovery steam fluctuating range, be convenient to vapour system stable operation.
Those skilled in the art should be understood that the utility model can not depart from spirit or scope of the present utility model with many other concrete forms realizations.Although described embodiment of the present utility model, should understand the utility model and should not be restricted to these embodiment, within the utility model spirit and scope that those skilled in the art can define as appended claims, make and changing and amendment.

Claims (8)

1. a heat accumulating type expansion chamber waste heat storage apparatus, for Mist heat recovering, is characterized in that, described heat accumulating type expansion chamber waste heat storage apparatus comprises:
Water-cooled flue, described smoke gas flow is through described water-cooled flue and transfer heat to the sidewall of described water-cooled flue;
One or more heat accumulating type trellis, distributes and be arranged in described water-cooled flue, and by spaced apart described water-cooled flue, described smoke gas flow is through described heat accumulating type trellis;
Drum, is connected with the sidewall of described water-cooled flue, is full of water and forms a steam/water circulating between the two in the sidewall of described water-cooled flue and described drum;
Oxygen-eliminating device, one end is connected with described drum, and the other end is connected with water source, and described water source is input in described drum after described oxygen-eliminating device.
2. heat accumulating type expansion chamber waste heat storage apparatus according to claim 1, is characterized in that, described water-cooled flue comprises:
Upper collecting chamber, is connected with described drum;
Two groups of water-cooled membrane walls, be symmetricly set on the both sides, front and back of described upper collecting chamber, the upper end of described two groups of water-cooled membrane walls and described upper collecting chamber are connected to form the passage that a cross section is " Π " shape, described two groups of water-cooled membrane wall lower ends are all connected with a lower header, and two described lower headers are all connected with described drum;
Some taper ash buckets, be arranged side by side the downside at described lower header, and the opening of described taper meeting ash bucket is towards the bottom of described upper collecting chamber, and described some taper ash buckets and described upper collecting chamber and described two groups of water-cooled membrane walls form a closed channel for described smoke gas flow warp.
3. heat accumulating type expansion chamber waste heat storage apparatus according to claim 2, is characterized in that, described water-cooled membrane wall is made up of some steel pipes, between adjacent described steel pipe, passes through steel plate integral solder together; The upper end of described steel pipe is connected with described upper collecting chamber, and the lower end of described steel pipe is connected with described lower header.
4. heat accumulating type expansion chamber waste heat storage apparatus according to claim 2, is characterized in that, described heat accumulating type trellis is arranged on the boundary of taper ash bucket described in adjacent two.
5. heat accumulating type expansion chamber waste heat storage apparatus according to claim 1, is characterized in that, on the outside of described water-cooled flue, is provided with heat-insulation layer.
6. heat accumulating type expansion chamber waste heat storage apparatus according to claim 1, is characterized in that, described heat accumulating type trellis is made up of some ceramic honeycomb bricks.
7. heat accumulating type expansion chamber waste heat storage apparatus according to claim 1, is characterized in that, between described oxygen-eliminating device and described water source, is provided with the first feed pump.
8. heat accumulating type expansion chamber waste heat storage apparatus according to claim 1, is characterized in that, between described oxygen-eliminating device and described drum, is provided with the second feed pump.
CN201420171400.4U 2014-04-10 2014-04-10 Heat accumulating type settling chamber waste heat storage device Active CN203848696U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420171400.4U CN203848696U (en) 2014-04-10 2014-04-10 Heat accumulating type settling chamber waste heat storage device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420171400.4U CN203848696U (en) 2014-04-10 2014-04-10 Heat accumulating type settling chamber waste heat storage device

Publications (1)

Publication Number Publication Date
CN203848696U true CN203848696U (en) 2014-09-24

Family

ID=51561703

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420171400.4U Active CN203848696U (en) 2014-04-10 2014-04-10 Heat accumulating type settling chamber waste heat storage device

Country Status (1)

Country Link
CN (1) CN203848696U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104329942A (en) * 2014-11-12 2015-02-04 宁夏嘉翔自控技术有限公司 Masonry method of heat accumulator for dividing interior of settling chamber of magnesium metal reducing furnace
CN109539802A (en) * 2018-10-16 2019-03-29 宝钢工程技术集团有限公司 Full vaporization wall electric furnace expansion chamber
CN112322826A (en) * 2020-11-25 2021-02-05 中冶南方工程技术有限公司 Converter flue gas treatment method and system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104329942A (en) * 2014-11-12 2015-02-04 宁夏嘉翔自控技术有限公司 Masonry method of heat accumulator for dividing interior of settling chamber of magnesium metal reducing furnace
CN109539802A (en) * 2018-10-16 2019-03-29 宝钢工程技术集团有限公司 Full vaporization wall electric furnace expansion chamber
CN112322826A (en) * 2020-11-25 2021-02-05 中冶南方工程技术有限公司 Converter flue gas treatment method and system

Similar Documents

Publication Publication Date Title
CN201050944Y (en) Residual heat recycling device for electric furnace smoke gas
CN104315864B (en) The method of work of the Heat-energy recovery system of high-temperature material that waste heat recovery rate is high
CN103940248B (en) A kind of heat accumulating type electric boiler flue gas waste heat recovery system
CN202141195U (en) Vacuum hot water boiler with waste heat recycling device
CN203848696U (en) Heat accumulating type settling chamber waste heat storage device
CN102635844A (en) Boiler system using waste heat of flue gas of rotary hearth furnace
CN206051959U (en) A kind of Novel medical rubbish plasma gasification processing system
CN202770234U (en) Waste heat power generation system for silicon-smelting electric furnace
CN201636832U (en) Exhaust heat boiler of electric steelmaking furnace
CN201852070U (en) Flue type shell-and-tube heat exchanger of waste heat boiler
CN203785472U (en) Dual-heat-accumulation-type electric furnace flue gas waste heat recovery device
CN202691998U (en) Automatic dust removal type waste heat boiler
CN207567275U (en) Vaporize latter end flue compulsory circulative cooling system
CN201964783U (en) High-temperature heat energy recovery converter
CN201653168U (en) Heat pipe type waste heat recovery special apparatus for high temperature high dust laden smoke in metallurgy furnace
CN208059602U (en) A kind of sponge iron waste heat boiler
CN204176624U (en) A kind of dry coke quenching residual heat boiler device
CN203159553U (en) Coal gas generator
JP2014025601A (en) Exhaust gas recovery system
CN203240910U (en) Flue gas recycling system of ferromanganese smelting electric furnace
CN203174055U (en) Total-heat recovery-type synthesis gas cooler with slag chamber
CN202793047U (en) Ferroalloy electric furnace gas heat recovery boiler
CN202546702U (en) Boiler heat recovery system of low-temperature flue gas before desulfuration
CN201954975U (en) Heat storage type heat-pipe heat exchanger
CN203657519U (en) Heat exchanging equipment recovering smoke waste heat

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant