JPH0456874B2 - - Google Patents
Info
- Publication number
- JPH0456874B2 JPH0456874B2 JP59187158A JP18715884A JPH0456874B2 JP H0456874 B2 JPH0456874 B2 JP H0456874B2 JP 59187158 A JP59187158 A JP 59187158A JP 18715884 A JP18715884 A JP 18715884A JP H0456874 B2 JPH0456874 B2 JP H0456874B2
- Authority
- JP
- Japan
- Prior art keywords
- heavy oil
- waste liquid
- pulp
- heated
- fuel
- 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.)
- Expired - Lifetime
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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Landscapes
- Solid Fuels And Fuel-Associated Substances (AREA)
- Paper (AREA)
Description
【発明の詳細な説明】
(イ) 産業上の利用分野
本発明は、パルプ製造工程中の廃液より燃料を
製造する方法に関する。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a method for producing fuel from waste liquid during a pulp manufacturing process.
(ロ) 従来の技術
従来、パルプの製造工程において発生する廃液
の処理として、現状では凝集剤を添加して凝固せ
しめたり、又は遠心分離機等で脱水した後河川等
へ放流するか或は焼却する他なかつた。(b) Conventional technology Conventionally, waste liquid generated in the pulp manufacturing process has been treated by adding a flocculant to coagulate it, or by dewatering it using a centrifuge, etc., and then discharging it into a river, etc., or incinerating it. I had no choice but to do it.
(ハ) 発明が解決しようとする問題点
従つて、河川等へ放流した際にはヘドロ、悪臭
等の公害の原因となつたり、又焼却する際には燃
料が高額となり、処理コストが高く不経済であつ
た。(c) Problems to be solved by the invention Therefore, when discharged into rivers, etc., it causes pollution such as sludge and bad odor, and when incinerated, the fuel becomes expensive and the processing cost is high and wasteful. It was the economy.
(ニ) 問題点を解決するための手段
本発明では、パルプ製造工程中において発生す
る廃液を、予め一定温度の重油を収納したクツカ
ー中に投入して重油中に廃液を浸漬し、加熱した
重油を熱媒体として攪拌加熱しながら常圧より10
〜20mmHgの減圧処理を行い、次いで、常圧より
740〜750mmHgでの減圧処理を行つて、原料を脱
水処理し、次いで、脱水処理した廃液中のパルプ
残滓物を重油中より取り出して圧搾脱油し、脱油
したパルプ残滓物を燃料とすることを特徴とする
パルプ製造工程中の廃液より燃料を製造する方法
を提供するものである。(d) Means for Solving the Problems In the present invention, the waste liquid generated during the pulp manufacturing process is poured into a container containing heavy oil at a constant temperature, the waste liquid is immersed in the heavy oil, and the heated heavy oil is heated. 10°C from normal pressure while stirring and heating using
Perform depressurization treatment to ~20mmHg, then reduce from normal pressure.
The raw material is dehydrated by performing a vacuum treatment at 740 to 750 mmHg, and then the pulp residue in the dehydrated waste liquid is extracted from the heavy oil and deoiled by pressing, and the deoiled pulp residue is used as fuel. The present invention provides a method for producing fuel from waste liquid during a pulp manufacturing process, characterized by the following.
(ホ) 作用
本発明によれば、予熱した重油を熱媒体として
減圧条件下で脱水処理するので、加熱重油がパル
プ廃液固形分の組織中の水分と置換し、同固形分
は組織内外から加熱重油を熱媒体として加熱され
ることとなり、脱水効率が向上し、短時間にて完
全な脱水処理が行われることとなる。また脱水処
理した廃液中のパルプ残滓物は重油中より取出し
て脱油を行うが、かかる脱油処理後においてもパ
ルプ残滓物中の組織内に重油が分散状態で残存す
るので燃焼性の高い燃料が得られる。さらに、廃
液を加熱した重油で加熱するとともに、二段減圧
処理によつて、上記の二段減圧処理によつて、廃
油中のパルプ残滓物の分解及びパルプ残滓物の流
出を防止するものである。(E) Effect According to the present invention, dehydration is performed under reduced pressure conditions using preheated heavy oil as a heat medium, so the heated heavy oil replaces the moisture in the tissue of the pulp waste liquid solids, and the solids are heated from inside and outside the tissue. Heating is performed using heavy oil as a heat medium, which improves dehydration efficiency and allows complete dehydration treatment to be performed in a short time. In addition, the pulp residue in the dehydrated waste liquid is extracted from heavy oil and deoiled, but even after such deoiling treatment, the heavy oil remains in a dispersed state in the tissue of the pulp residue, making it a highly combustible fuel. is obtained. Furthermore, the waste liquid is heated with heated heavy oil and subjected to two-stage depressurization treatment to prevent the decomposition of pulp residues in the waste oil and the outflow of pulp residues. .
(ヘ) 効果
従つて、パルプ廃液を減圧条件下で加熱重油を
熱媒体として脱水処理するので、脱水効率が良好
で短時間で完全な脱水処理が行われ、低コストが
図れると共に、脱油後も処理物中の組織内に重油
が分散状態で残存するので燃焼性の高い高品質の
燃料が得られるという効果を奏する。さらに、二
段減圧処理によつて、脱水処理を行う際に、パル
プ残滓物の分解及び流出を防止することにより、
その採取量及び燃料効率を高めることができる。(f) Effects Therefore, since the pulp waste liquid is dehydrated under reduced pressure conditions using heated heavy oil as a heat medium, the dehydration efficiency is good and complete dehydration can be performed in a short time, reducing costs. Since the heavy oil remains in a dispersed state in the structure of the processed material, it is possible to obtain a high quality fuel with high combustibility. Furthermore, the two-stage depressurization process prevents pulp residue from decomposing and flowing out during dehydration.
The amount of extraction and fuel efficiency can be increased.
(ト) 実施例
本発明の実施例を詳説すれば次の通りである。
すなわち、4.5m3のクツカー中に重油を投入し、
同重油を60〜120℃の一定温度に予熱しておく。
この加熱重油中に、パルプ製造工程中に発生する
廃液500Kgを投入して浸漬し、クツカーを閉蓋す
る。(G) Examples Examples of the present invention will be described in detail as follows.
In other words, heavy oil is poured into a 4.5m 3 tanker,
Preheat the same heavy oil to a constant temperature of 60 to 120℃.
500 kg of waste liquid generated during the pulp manufacturing process is poured into this heated heavy oil and immersed, and the container is closed.
次に加熱重油を60〜120℃の一定温度に保持し
ながらクツカー内を減圧状態とする。 Next, while maintaining the heated heavy oil at a constant temperature of 60 to 120°C, the inside of the tanker is reduced in pressure.
かかる減圧処理は、常圧より740〜750mmHgの
略真空条件下にて約60分程一段階の減圧にて行う
か、又はパルプ廃液の加熱重油への浸漬後の初期
30分程度は小さい減圧条件下、すなわち10〜20mm
Hgの減圧を行い、次いで大きい減圧条件下、す
なわち常圧より740〜750mmHgの減圧の略真空条
件下で約60分程にて二段階の減圧を行うかのいず
れでもよいが、いずれにしても含水率３〜６％前
後まで脱水する。 Such depressurization treatment is carried out in one step under vacuum conditions of 740 to 750 mmHg from normal pressure for about 60 minutes, or in the initial stage after the pulp waste liquid is immersed in heated heavy oil.
About 30 minutes under small vacuum conditions, i.e. 10-20mm
Hg may be depressurized, and then two-step depressurization may be performed under large vacuum conditions, i.e., 740 to 750 mmHg less than normal pressure, for about 60 minutes, but in either case, Dehydrate until the moisture content is around 3-6%.
次にかかる脱水処理した廃液中のパルプ残滓物
をスクリユープレスにより圧搾して脱油する。か
かる脱油処理物中には３〜８％の重油が残存して
おり、こぜはパルプ残滓物の組織全体に分散状態
で存在しているものである。 Next, the pulp residue in the dehydrated waste liquid is squeezed using a screw press to remove oil. In the oil-removed product, 3 to 8% of heavy oil remains, and the oil is present in a dispersed state throughout the structure of the pulp residue.
かかる脱油処理後のパルプ残滓物は、粗砕又は
粉砕して燃料として供するものである。 The pulp residue after such oil removal treatment is crushed or crushed and used as fuel.
本発明を詳説すれば、予熱した重油を熱媒体と
して減圧条件下で脱水処理するので、加熱重油が
パルプ廃液固型分の組織中の水分と置換し、同固
型分は組織内外から加熱重油を熱媒体として加熱
されることとなり、脱水効率が向上し、短時間に
て完全な脱水処理が行われることとなる。また脱
水処理した固型分たるパルプ残滓物は重油中より
取出して脱油を行うが、かかる脱油処理後におい
てもパルプ残滓物中の組織内に重油が分散状態で
残存するので燃焼性の高い処理物が得られる。さ
らに、本発明によれば、廃液を重油で加熱処理す
る際に、上記の二段減圧処理によつて、廃油中の
パルプ残滓物の分解及びパルプ残滓物の流出を防
止することにより、その採取量及び燃料効率を高
めることができる。 To explain the present invention in detail, since the dehydration treatment is performed under reduced pressure conditions using preheated heavy oil as a heat medium, the heated heavy oil replaces the moisture in the tissue of the pulp waste liquid solids, and the solids are absorbed from the heated heavy oil from inside and outside the tissue. is heated as a heat medium, the dehydration efficiency is improved, and complete dehydration processing is performed in a short time. In addition, the dehydrated solid pulp residue is extracted from heavy oil and deoiled, but even after such deoiling treatment, the heavy oil remains in a dispersed state within the structure of the pulp residue, making it highly flammable. A processed product is obtained. Furthermore, according to the present invention, when waste liquid is heat-treated with heavy oil, the above-mentioned two-stage depressurization treatment prevents decomposition of pulp residue in the waste oil and prevents pulp residue from flowing out, thereby allowing its collection. The amount and fuel efficiency can be increased.
Claims (1)
予め一定温度の重油を収納したクツカー中に投入
して重油中に廃液を浸漬し、加熱した重油を熱媒
体として攪拌加熱しながら常圧より10〜20mmHg
の減圧処理を行い、次いで、常圧より740〜750mm
Hgでの減圧処理を行つて、原料を脱水処理し、
次いで、脱水処理した廃液中のパルプ残滓物を重
油中より取り出して圧搾脱油し、脱油したパルプ
残滓物を燃料とすることを特徴とするパルプ製造
工程中の廃液より燃料を製造する方法。1 Waste liquid generated during the pulp manufacturing process is
Pour the waste liquid into a container containing heavy oil at a certain temperature in advance, immerse the waste liquid in the heavy oil, and use the heated heavy oil as a heating medium to stir and heat the liquid to 10 to 20 mmHg above normal pressure.
740-750mm below normal pressure.
The raw material is dehydrated by depressurization treatment with Hg,
A method for producing fuel from waste liquid during a pulp manufacturing process, characterized in that the pulp residue in the dehydrated waste liquid is then extracted from heavy oil and deoiled by pressing, and the deoiled pulp residue is used as fuel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18715884A JPS6164790A (en) | 1984-09-05 | 1984-09-05 | Production of fuel from waste liquor in pulp manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18715884A JPS6164790A (en) | 1984-09-05 | 1984-09-05 | Production of fuel from waste liquor in pulp manufacturing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6164790A JPS6164790A (en) | 1986-04-03 |
| JPH0456874B2 true JPH0456874B2 (en) | 1992-09-09 |
Family
ID=16201139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18715884A Granted JPS6164790A (en) | 1984-09-05 | 1984-09-05 | Production of fuel from waste liquor in pulp manufacturing process |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6164790A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63165490A (en) * | 1986-09-13 | 1988-07-08 | Shuzo Nakazono | Production of fuel from sludge |
| GB0314007D0 (en) * | 2003-06-17 | 2003-07-23 | Harris Hynd Ltd | Audio transducer |
| KR100865027B1 (en) | 2007-06-27 | 2008-10-23 | 남종현 | Carbonization Furnace for Wood Processing and Manufacturing Method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6116353U (en) * | 1984-06-11 | 1986-01-30 | 荏原インフイルコ株式会社 | Organic sludge solid fuel equipment |
| JPS61296A (en) * | 1984-06-13 | 1986-01-06 | Ebara Infilco Co Ltd | Treatment of organic sludge |
-
1984
- 1984-09-05 JP JP18715884A patent/JPS6164790A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6164790A (en) | 1986-04-03 |
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