JPS61124593A - Utilizing system of waste heat emitted from non-ferrous metal smelting furnace - Google Patents
Utilizing system of waste heat emitted from non-ferrous metal smelting furnaceInfo
- Publication number
- JPS61124593A JPS61124593A JP59245646A JP24564684A JPS61124593A JP S61124593 A JPS61124593 A JP S61124593A JP 59245646 A JP59245646 A JP 59245646A JP 24564684 A JP24564684 A JP 24564684A JP S61124593 A JPS61124593 A JP S61124593A
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- heat
- smelting furnace
- ferrous metal
- electrolyte
- 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.)
- Granted
Links
Classifications
-
- 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
- Y02P10/20—Recycling
-
- 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
Landscapes
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
Description
【発明の詳細な説明】
〔差業上の利用分野〕
本発明は、非鉄金属製錬炉から排出さ几る廃熱を利用し
て銅電解液を加熱するようにした排熱の利用システムに
関するものである。[Detailed Description of the Invention] [Differential Field of Application] The present invention relates to a waste heat utilization system that heats a copper electrolyte using waste heat discharged from a non-ferrous metal smelting furnace. It is something.
周知のように、非鉄、特に銅製錬用の反射炉においては
、多欲の熱？有する廃ガスが排出される。As is well known, in reverberatory furnaces for non-ferrous metals, especially copper smelting, the heat of greed? The waste gas containing the waste gas is discharged.
従来、このような廃ガスが保有する熱エネルギーを利用
するシステムとしては、第２図に示すものがある。この
廃熱利用システムは、反射炉１の出口に余熱ボイラー３
を設置し、この余熱ボイラー３によって熱エネルギー？
回収して発電１行うよ５Ｋしたものである。なお、余熱
ボイラー３．？通過した廃ガスは、冷洗塔４によって冷
却さｎた後、煙道２の末端に設置さｎた石膏プラント５
においてＳＯ２ガスが回収されて外部に排出される。ま
た、図中符号６はコットレルである。Conventionally, there is a system shown in FIG. 2 that utilizes the thermal energy contained in such waste gas. This waste heat utilization system has a residual heat boiler 3 at the outlet of the reverberatory furnace 1.
installed, and this residual heat boiler 3 generates thermal energy?
It cost 5K to collect and generate electricity. In addition, residual heat boiler 3. ? The passed waste gas is cooled by a cold washing tower 4 and then passed through a gypsum plant 5 installed at the end of the flue 2.
SO2 gas is recovered and discharged to the outside. Further, the reference numeral 6 in the figure is Cottrell.
しかしながら、上記の廃熱利用システムにおいては、余
熱ボイラー３を通過した廃ガスが末だ約３００℃程度の
熱を保有しており、したがって近時の省エネルギーの観
点からみｎは十分なエネルギーの回収が果きｎていない
という問題があった。However, in the above waste heat utilization system, the waste gas that has passed through the residual heat boiler 3 still retains heat of about 300°C, so from the perspective of recent energy conservation, n is not enough energy recovery. The problem was that there was no fruit.
本発明は、上記問題を解決するためにな嘔ｎたもので、
廃熱の利用率を大幅に向上きせることができる非鉄金属
製錬炉から排出される廃熱の利用システムを提供するこ
とを目的とする。The present invention was made in order to solve the above problems,
The purpose of the present invention is to provide a system for utilizing waste heat discharged from a nonferrous metal smelting furnace that can significantly improve the utilization rate of waste heat.
本発明は、上記の目的を達成するために、非鉄金属−錬
炉から排出される廃ガスの通路中に熱交換器を設置し、
この熱交換器（！：Ｍ電解槽との間で銅電解槽の電解液
を循環させるようにし次ものである。In order to achieve the above object, the present invention installs a heat exchanger in the passage of waste gas discharged from a non-ferrous metal wrought furnace,
The electrolyte in the copper electrolytic cell is circulated between this heat exchanger (!: M electrolytic cell).
すなわち、本出願の発明者は、非鉄金属製錬炉か゛ら排
出される廃熱によって、製錬炉に近接して配置される銅
電解槽の電解液？加熱することを思いついたのである。That is, the inventor of the present application has proposed that the waste heat discharged from the non-ferrous metal smelting furnace be used to reduce the electrolyte of the copper electrolytic cell located close to the smelting furnace. I came up with the idea of heating it.
一般に、銅電解槽の電解液は、精錬時６０℃程度になさ
ｎており、常温よシ高（なっている。したがって、精錬
時に電解液全加熱する必要がある。特に１．−冬期には
放−が激しく、しかも電解槽は、通常、非常に大型であ
るため、電解液の加熱ＶＣは多量の熱エネルギーを費さ
なければならなかった。Generally, the electrolyte in a copper electrolytic tank is heated to about 60℃ during refining, which is higher than room temperature.Therefore, it is necessary to fully heat the electrolyte during refining.Especially in winter. Since the discharge is intense and the electrolytic cells are usually very large, heating the electrolyte VC requires expending a large amount of thermal energy.
そこで上記の構成を採用することにより、廃ガ゛ス中の
廃熱によって電解液を加熱するようにし次ものである。Therefore, by adopting the above configuration, the electrolytic solution is heated by the waste heat in the waste gas.
この結果、電解液を加熱するための熱エネルギーとして
は、廃熱以外全く不用となム省エネルギーに大きく貢献
することができたのである。As a result, no thermal energy other than waste heat is needed to heat the electrolyte, making a significant contribution to energy savings.
〔実施例コ
以下、本発明の一実権例について第１図を参照して説明
する。なお、第１図において上記従来例′と同様な部分
には、同一符号を付してその説明を省略する。[Example 1] Hereinafter, an example of the present invention will be described with reference to FIG. In FIG. 1, the same parts as those in the conventional example ' are designated by the same reference numerals, and the explanation thereof will be omitted.
第１図に示す実施例においては、冷洗塔４に隣接してそ
の上流側の煙道２に熱交換器７が設置されている。この
熱交換器７内には、熱交換パイプＣ図示せず）が配役さ
ｎており、熱交換パイプの入口と出口とはそｎぞれ配管
８，９ｆ介して電解槽１０に接続されている。そしそ、
配管８を介して熱交換器７に送らｎてきた電解液は、熱
交換パイプを通過する際に熱交換パイプ間を通る廃ガス
によって加熱され、加熱さｎた電解液は配管９を介して
電解槽１０に戻るようになっている。In the embodiment shown in FIG. 1, a heat exchanger 7 is installed in the flue 2 adjacent to the cold washing tower 4 and on the upstream side thereof. A heat exchange pipe C (not shown) is disposed within the heat exchanger 7, and the inlet and outlet of the heat exchange pipe are connected to the electrolytic cell 10 via pipes 8 and 9f, respectively. There is. Soshiso,
The electrolytic solution sent to the heat exchanger 7 via piping 8 is heated by the waste gas that passes between the heat exchange pipes when passing through the heat exchange pipes, and the heated electrolytic solution is sent to the heat exchanger 7 via piping 9. It returns to the electrolytic cell 10.
しかして、本発明の廃熱の利用システムによｎば、電解
槽１０の電解液を廃ガスの廃熱によって加熱するように
しているから、廃ガスから十分に熱を回収することがで
きる一方、電解液を加熱するための特別な熱エネルギー
？必要とせず、エネルギーｆ尖幅に節約することができ
る。According to the waste heat utilization system of the present invention, since the electrolytic solution in the electrolytic cell 10 is heated by the waste heat of the waste gas, it is possible to sufficiently recover heat from the waste gas. , special thermal energy to heat the electrolyte? It is not necessary, and the energy f can be saved.
特にこあ実施例のように、煙道２の末端に石膏プラント
５に設置しているため廃ガスを冷却することが必要な場
合には、廃ガスが冷洗塔４に至る以前ｉ熱交換器７にお
いて冷却されるから、冷洗−４Ｊおい−Ｃ６要２ヶ、６
却水。量６カ、や少ヶくすることができ、省エネルギー
化をよシ一層達成することができるとともに、冷洗塔４
における廃ガスの降温幅が小さくなるから、廃ガスの＠
度コントロールが容易になる等め利点があ、るＱ〔試験
例〕
反射炉１から排出される１ ５０，００ ＯＮＷ＆／ｈ
の廃ガスは、余熱ボイラ３を通過した後、その温度が２
６０℃になっていた。この廃ガスにより、入口側温度が
５６〜５８℃の電解液を６３〜６５℃に加熱して電解４
１１１Ｏに戻し比ところ、電解槽１０中の電解液を何ら
加熱することなく６０℃の一定温度に保つことができた
。ここで、電解槽１０の液量は２，３ｏｏｔａ３、電解
液の循環量は６７０ｔｓ３／ｈ、熱交換器７の熱交換伝
熱面積８５０ｍ とした。In particular, as in this embodiment, when it is necessary to cool the waste gas because the gypsum plant 5 is installed at the end of the flue 2, heat exchange is performed before the waste gas reaches the cooling washing tower 4. Since it is cooled in the container 7, cold washing - 4J Oi - C6 required 2 pieces, 6
Irumizu. It is possible to reduce the amount of water to 6, which makes it possible to achieve even greater energy savings.
Since the temperature drop width of the waste gas becomes smaller at
Q [Test example] 1 50,00 ONW &/h discharged from reverberatory furnace 1
After the waste gas passes through the preheat boiler 3, its temperature reaches 2.
It was 60 degrees Celsius. This waste gas heats the electrolytic solution whose inlet temperature is 56 to 58 degrees Celsius to 63 to 65 degrees Celsius, leading to electrolysis.
However, the electrolytic solution in the electrolytic cell 10 could be maintained at a constant temperature of 60° C. without any heating. Here, the amount of liquid in the electrolytic cell 10 was 2.3 oota3, the circulation rate of the electrolytic solution was 670 ts3/h, and the heat exchange heat transfer area of the heat exchanger 7 was 850 m2.
また、熱交換器７を通過した廃ガスの温度は、１８０℃
であ夛、この廃ガスは冷洗塔４で６０’０に冷却し、石
膏プラント５へと送った。Furthermore, the temperature of the waste gas that has passed through the heat exchanger 7 is 180°C.
This waste gas was then cooled to 60'0 in the cold washing tower 4 and sent to the gypsum plant 5.
なお、上記のように、廃ガスは熱交換器７内に番いてＳ
０２ ガスが凝縮し始める露点以下の温度に下がシ、こ
のためＨ２ＳＯ４（硫酸ミスト）が析出する。そこで、
熱交換器７の内壁面および熱交換パイプの外周面を耐食
性の高い材質によって構成する必要がある。上記の実施
例ではエコノマイザ−を用いた。In addition, as mentioned above, the waste gas is stored in the heat exchanger 7 and
02 The temperature drops below the dew point at which the gas begins to condense, resulting in the precipitation of H2SO4 (sulfuric acid mist). Therefore,
The inner wall surface of the heat exchanger 7 and the outer peripheral surface of the heat exchange pipe must be made of a material with high corrosion resistance. In the above example, an economizer was used.
また、上記の実施例にお、いては、熱交換器７を冷洗塔
４に直接連結しているが、熱交換器７と冷洗塔４とを離
して設置してもよい。ただし、熱交換器７と冷洗塔４と
を離間させた場合には、熱交換器７と冷洗塔４とを連結
する煙道の円面が露点以ノ下に下がつ之廃ガスによって
腐食されるのを防止するために、煙道の内面を耐食構造
とする必要がある。この結果、設備費が高騰する。し九
がって、上記の実施例のように熱交換器７１ｆｔ：冷洸
塔４に直接連結するのが望ましい。Further, in the above embodiment, the heat exchanger 7 is directly connected to the cold washing tower 4, but the heat exchanger 7 and the cold washing tower 4 may be installed separately. However, if the heat exchanger 7 and the cold-washing tower 4 are separated, the circular surface of the flue connecting the heat exchanger 7 and the cold-washing tower 4 will not absorb the waste gas that drops below the dew point. In order to prevent corrosion by corrosion, the inner surface of the flue must have a corrosion-resistant structure. As a result, equipment costs rise. Therefore, it is desirable to connect the heat exchanger 71 ft directly to the cooling tower 4 as in the above embodiment.
以上説明したように、本発明の廃熱利用システムによｎ
ば、非鉄金属製錬炉から排出される廃ガスの通路中に熱
交換器？設置し、この熱交換器と銅電解槽との間で銅電
解槽の電解液を循環させるよりにしているから、非鉄金
属製錬炉から排出される廃熱を十分に回収することがで
きるとともに、銅電解槽の電解液を加熱するための特別
なエネルギーが不要になり、省エネルギーという近時の
要望に十分に応えることができるという効果が得ら几る
。As explained above, the waste heat utilization system of the present invention
For example, is there a heat exchanger in the path of waste gas discharged from a non-ferrous metal smelting furnace? Since the electrolyte in the copper electrolytic tank is circulated between the heat exchanger and the copper electrolytic tank, it is possible to sufficiently recover the waste heat discharged from the non-ferrous metal smelting furnace. This eliminates the need for special energy to heat the electrolyte in the copper electrolytic tank, and has the effect of fully meeting the recent demand for energy conservation.
第１図は本発明の一実施例を示す全体構成図、第２図は
従来の廃熱利用システムの一例を示す全体構成図である
。
１・・・・・・反射炉〔非鉄金属製錬炉）、２・・・・
・・煙道Ｃ通路）、７・・・・・・熱交換器、ｌｏ・・
・・・・銅電解槽。FIG. 1 is an overall configuration diagram showing an embodiment of the present invention, and FIG. 2 is an overall configuration diagram showing an example of a conventional waste heat utilization system. 1...Reverberatory furnace [non-ferrous metal smelting furnace], 2...
... Flue C passage), 7... Heat exchanger, lo...
...Copper electrolytic cell.
Claims (1)
器を設置し、この熱交換器と銅電解槽との間で銅電解槽
の電解液を循環させることを特徴とする非鉄金属製錬炉
から排出される廃熱の利用システム。A non-ferrous metal characterized by installing a heat exchanger in the path of waste gas discharged from a non-ferrous metal smelting furnace, and circulating an electrolyte from the copper electrolytic cell between the heat exchanger and the copper electrolytic cell. A system that utilizes waste heat discharged from smelting furnaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59245646A JPS61124593A (en) | 1984-11-20 | 1984-11-20 | Utilizing system of waste heat emitted from non-ferrous metal smelting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59245646A JPS61124593A (en) | 1984-11-20 | 1984-11-20 | Utilizing system of waste heat emitted from non-ferrous metal smelting furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61124593A true JPS61124593A (en) | 1986-06-12 |
| JPS6360116B2 JPS6360116B2 (en) | 1988-11-22 |
Family
ID=17136741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59245646A Granted JPS61124593A (en) | 1984-11-20 | 1984-11-20 | Utilizing system of waste heat emitted from non-ferrous metal smelting furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61124593A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007154547A (en) * | 2005-12-06 | 2007-06-21 | Nobutaya:Kk | Window frame for assembly house |
| CN108728638A (en) * | 2018-09-12 | 2018-11-02 | 江钨世泰科钨品有限公司 | A kind of utilization method and system of Tungsten smelting autoclaving process waste heat |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5028384A (en) * | 1973-07-13 | 1975-03-22 | ||
| JPS5115484A (en) * | 1974-07-30 | 1976-02-06 | Showa Denko Kk | ONDOKEN SHUTSUSOCHI |
-
1984
- 1984-11-20 JP JP59245646A patent/JPS61124593A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5028384A (en) * | 1973-07-13 | 1975-03-22 | ||
| JPS5115484A (en) * | 1974-07-30 | 1976-02-06 | Showa Denko Kk | ONDOKEN SHUTSUSOCHI |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007154547A (en) * | 2005-12-06 | 2007-06-21 | Nobutaya:Kk | Window frame for assembly house |
| CN108728638A (en) * | 2018-09-12 | 2018-11-02 | 江钨世泰科钨品有限公司 | A kind of utilization method and system of Tungsten smelting autoclaving process waste heat |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6360116B2 (en) | 1988-11-22 |
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