JPH04177014A - Method of incinerating water absorbent - Google Patents
Method of incinerating water absorbentInfo
- Publication number
- JPH04177014A JPH04177014A JP2306621A JP30662190A JPH04177014A JP H04177014 A JPH04177014 A JP H04177014A JP 2306621 A JP2306621 A JP 2306621A JP 30662190 A JP30662190 A JP 30662190A JP H04177014 A JPH04177014 A JP H04177014A
- Authority
- JP
- Japan
- Prior art keywords
- water absorbent
- fluidized bed
- water
- incinerating
- molecular water
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims description 30
- 230000002745 absorbent Effects 0.000 title abstract description 10
- 239000002250 absorbent Substances 0.000 title abstract description 10
- 239000011358 absorbing material Substances 0.000 claims description 33
- 239000010802 sludge Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 12
- 238000007710 freezing Methods 0.000 claims description 8
- 230000008014 freezing Effects 0.000 claims description 8
- 238000005057 refrigeration Methods 0.000 claims description 3
- 238000010298 pulverizing process Methods 0.000 claims description 2
- 239000000446 fuel Substances 0.000 abstract description 6
- 239000006185 dispersion Substances 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 2
- 239000000295 fuel oil Substances 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- 238000002485 combustion reaction Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 5
- 235000019645 odor Nutrition 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Landscapes
- Gasification And Melting Of Waste (AREA)
- Processing Of Solid Wastes (AREA)
- Disintegrating Or Milling (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は吸水材の焼却処理方法に係り、特に、使い捨て
紙おむつ等に代表される高分子吸水材等の吸水材の焼却
処理において、取扱い時の臭気発生を押えて、良好な作
業環境のもとに、容易かつ効率的な処理を行なうことが
できる吸水材の焼却処理方法に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for incinerating water-absorbing materials, and in particular, in the incineration treatment of water-absorbing materials such as polymeric water-absorbing materials typified by disposable disposable diapers, etc., when handling The present invention relates to a method for incinerating water-absorbing materials that can be easily and efficiently treated in a good working environment while suppressing the generation of odor.
［従来の技術］
近年、高分子吸水材を用いた使い捨て紙おむつは、その
吸水性能向上、大量生産による低価格化及び生活様式の
変化等により、増々需要が高まりつつある。また、人口
分布の高齢化によっても、その需要は更に増加する傾向
にある。このため、廃棄された使い捨て紙おむつの処理
が、重要な課題となる。[Prior Art] In recent years, demand for disposable disposable diapers using polymeric water-absorbing materials has been increasing due to improved water-absorbing performance, lower prices due to mass production, and changes in lifestyles. In addition, the demand is likely to increase further due to the aging of the population. Therefore, the disposal of discarded disposable diapers becomes an important issue.
現在、使い捨て紙おむつ等の高分子吸水材を利用した廃
棄物は、一般の家庭・都市ゴミと共に大型の都市ゴミ焼
却炉で焼却処理されている。或いは、そのまま、埋立て
廃棄処分されている。Currently, waste materials using polymeric water absorbing materials, such as disposable diapers, are incinerated along with general household and municipal waste in large municipal waste incinerators. Or, they are simply disposed of in a landfill.
［発明が解決しようとする課題１
しかしながら、使用済みの高分子吸水材は自重の数十〜
数百倍の水分を吸収しており、しかも形状がくずれに゛
くく大きな°“かたまり”として処分されることとなる
。このように重くて大きな物を多量に燃焼・焼却すると
なると、焼却炉内で特別な撹拌操作や多くの滞留時間が
必要となり、一般の焼却炉では焼却処理が非常に困難と
なる。[Problem to be solved by the invention 1 However, used polymeric water absorbing material weighs several tens of times more than its own weight.
It absorbs hundreds of times more water, and its shape is difficult to collapse, so it is disposed of in large chunks. Burning and incinerating a large amount of such heavy and large materials requires special stirring operations and a long residence time in the incinerator, making incineration processing extremely difficult in a general incinerator.
また、特に、使用済み紙おむつの場合には、その臭気に
よる作業環境の恋化の問題もある。In addition, especially in the case of used disposable diapers, there is also the problem that the odor from the diapers makes the work environment unpleasant.
本発明は上記従来の問題点を解決し、高分子吸水材等の
吸水材を、臭気の発生を押えて、容易かつ効率的に焼却
処理する方法を提供することを目的とする。An object of the present invention is to solve the above-mentioned conventional problems and provide a method for easily and efficiently incinerating water-absorbing materials such as polymeric water-absorbing materials while suppressing the generation of odor.
［課題を解決するための手段］
請求項（１）の吸水材の焼却処理方法は、吸水した高分
子吸水材等の吸水材を焼却処理する方法において、該吸
水材を冷凍、固化させた後、粉砕し、得られた粉砕物を
焼却することを特徴とする
請求項（２）の吸水材の焼却処理方法は、請求項（１）
の方法において、焼却処理時に回収される蒸気を冷凍手
段の動力源の少なくとも一部として使用することを特徴
とする
請求項（３）の吸水材の焼却処理方法は、請求項（１）
又は（２）の方法において、前記粉砕物を汚泥と混合し
た後焼却することを特徴とする。[Means for Solving the Problems] The method of incinerating a water-absorbing material according to claim (1) is a method of incinerating a water-absorbing material such as a polymeric water-absorbing material that has absorbed water, after freezing and solidifying the water-absorbing material. The method for incinerating a water absorbing material according to claim (2), which comprises pulverizing the material and incinerating the obtained pulverized material, is the method according to claim (1).
The method for incineration of a water absorbing material according to claim (3) is characterized in that the steam recovered during the incineration treatment is used as at least a part of the power source of the refrigeration means.
Alternatively, the method (2) is characterized in that the pulverized material is mixed with sludge and then incinerated.
なお、請求項（３）の方法に従って、汚泥を混合する場
合、その混合比は、処理対象系統によっても異なるが、
通常の場合、吸水材の冷凍、固化、粉砕物：汚泥＝１０
０＝１０〜５０（重量比）とするのが好ましい。In addition, when mixing sludge according to the method of claim (3), the mixing ratio varies depending on the system to be treated, but
In normal cases, frozen, solidified, and crushed water absorbing material: sludge = 10
It is preferable that 0=10 to 50 (weight ratio).
［作用］
水分を多量に吸水した高分子吸水材等の吸水材はそのま
までは非常に解砕し難いが、冷却して凍結固化させるこ
とにより容易に機械解砕等により微粉砕することができ
る。そして、微粉砕したものであれば、後段の焼却炉等
による燃焼・焼却工程において、融解・乾燥・燃焼を短
時間で容易に行なうことができる。なお、冷凍、固化さ
れた吸水材は機械解砕等による粉砕工程で殆どが溶融状
態に戻るため、冷凍状態が燃焼に対して障害になること
はない。[Function] Water-absorbing materials such as polymeric water-absorbing materials that have absorbed a large amount of water are very difficult to crush as they are, but by cooling and freezing and solidifying them, they can be easily pulverized by mechanical crushing or the like. If it is finely pulverized, it can be easily melted, dried, and burned in a short time in the subsequent combustion and incineration process using an incinerator or the like. Note that most of the frozen and solidified water-absorbing material returns to a molten state through a crushing process such as mechanical crushing, so the frozen state does not pose an obstacle to combustion.
特に、本発明の方法では、被焼却物を粉砕するため、高
温燃焼が可能で、燃焼効率の良い流動床式焼却炉を用い
ることができ極めて有利である。In particular, in the method of the present invention, since the material to be incinerated is pulverized, a fluidized bed incinerator capable of high temperature combustion and high combustion efficiency can be used, which is extremely advantageous.
しかも、冷凍、固化して低温で前処理するため、臭気等
のガス発生も防止され、良好な作業環境のもとに、無公
害処理を行なうことが可能とされる。Furthermore, since the material is frozen and solidified and pretreated at a low temperature, the generation of gases such as odors is prevented, making it possible to carry out pollution-free processing in a favorable working environment.
しかして、請求項（２）の方法に従って、焼却処理時に
回収される蒸気を冷凍手段の動力源の少なくとも一部と
して使用することにより、エネルギーの有効利用を図る
ことができる。Therefore, according to the method of claim (2), by using the steam recovered during the incineration process as at least a part of the power source of the refrigeration means, it is possible to achieve effective use of energy.
また、請求項（３）の方法に従って、冷凍、固化粉砕物
を汚泥と混合した後焼却することにより、汚泥処理を同
時に行なうことが可能とされる。即ち、従来より、排水
及び下水余剰汚泥等の汚泥の燃焼・焼却処理についても
、その改良が望まれているが、請求項（３）の方法に従
って、冷凍、固化後、粉砕して得られる吸水材は、混合
された汚泥の水分を更に吸水するため、汚泥の水分調整
が行なえる上に、汚泥の発熱量調整をも行なえることに
なり、吸水材及び汚泥共に、その燃焼処理が非常に容易
となる。もちろん、吸水材単独でも、燃焼処理は非常に
容易である。Moreover, according to the method of claim (3), by mixing the frozen, solidified and pulverized material with sludge and then incinerating it, sludge treatment can be carried out simultaneously. In other words, improvements have been desired in the combustion and incineration treatment of sludge such as wastewater and surplus sewage sludge. Since the material absorbs more water from the mixed sludge, it is possible to adjust the water content of the sludge and also adjust the calorific value of the sludge. It becomes easier. Of course, even if the water absorbing material is used alone, combustion treatment is very easy.
［実施例］
以下に図面を参照して本発明の実施例について説明する
。[Examples] Examples of the present invention will be described below with reference to the drawings.
第１図は本発明の実施例に係る吸水材の焼却処理方法を
説明する系統図である６
高分子吸水材はコンベヤ１にて冷凍室２に導入され、冷
凍される。この冷凍室２には冷凍コイル３が配設され、
冷凍機４から冷媒が供給される。FIG. 1 is a system diagram illustrating a method for incinerating a water absorbent material according to an embodiment of the present invention 6 The polymer water absorbent material is introduced into a freezing chamber 2 by a conveyor 1 and frozen. A freezing coil 3 is arranged in this freezing chamber 2,
Refrigerant is supplied from the refrigerator 4.
冷凍室２で冷凍された高分子吸水材は機械式粉砕機５に
投入され、粉砕される。粉砕された高分子吸水材はコン
ベヤ６でホッパ７に投入され、必要に応じて供給される
汚泥と共に一旦貯蔵される。The polymer water-absorbing material frozen in the freezing chamber 2 is put into a mechanical crusher 5 and crushed. The pulverized polymeric water-absorbing material is fed into a hopper 7 by a conveyor 6, and is temporarily stored together with sludge supplied as needed.
ホッパ７の底部から取り出された高分子吸水材は、供給
機８で流動床式焼却炉９に供給される。The polymeric water-absorbing material taken out from the bottom of the hopper 7 is fed to a fluidized bed incinerator 9 by a feeder 8 .
流動床式焼却炉９は分散＄ｌ１ｌｉ１０．１１が２段に
設けられ、上下２段に流動床１２．１３が形成されてい
る。下段側の流動床１２は焼却用の流動床であり、分散
板１２を通って空気と補助燃料（例えば重油等の液体燃
料やガス）が供給され、適宜の流動媒体の流動床が形成
される。この流動床中において補助燃料と共に高分子吸
水材が燃焼する。The fluidized bed incinerator 9 is provided with two stages of dispersion, and fluidized beds 12,13 are formed in the upper and lower two stages. The fluidized bed 12 on the lower stage side is a fluidized bed for incineration, and air and auxiliary fuel (for example, liquid fuel such as heavy oil or gas) are supplied through the distribution plate 12 to form a fluidized bed of an appropriate fluidized medium. . In this fluidized bed, the polymeric water-absorbing material is combusted together with the auxiliary fuel.
９ａは燃焼空気用のブロワである。9a is a blower for combustion air.
燃焼ガスは上段側の分散板１１を通って熱回収用の流動
床１３に入る。この流動床１３に埋設するように伝熱管
１４が配設されており、燃焼熱はこの伝熱管１４と、排
ガス煙道２０の伝熱管１５とで回収される。伝熱管１４
で生じたスチームは気水分離ドラム１６を経て伝熱管１
５で過熱された後、蒸気タービン１７に送られる。ター
ビン１７は前記冷凍機４を駆動する。タービン１７を出
たスチームは復水器１８で復水された後、復水ポンプ１
９を経てドラム１６に戻される。The combustion gas passes through the upper dispersion plate 11 and enters the fluidized bed 13 for heat recovery. A heat exchanger tube 14 is disposed so as to be buried in this fluidized bed 13, and combustion heat is recovered by this heat exchanger tube 14 and the heat exchanger tube 15 of the exhaust gas flue 20. Heat exchanger tube 14
The steam generated in
After being superheated at step 5, it is sent to steam turbine 17. The turbine 17 drives the refrigerator 4 . The steam leaving the turbine 17 is condensed in the condenser 18 and then sent to the condensate pump 1.
9 and then returned to the drum 16.
なお、煙道２０を出たガスは排ガス処理装置（図示路）
にて集塵処理や必要に応じ脱硫、脱硝、脱臭等の処理が
行なわれた後、大気放出される。Note that the gas exiting the flue 20 is passed through an exhaust gas treatment device (shown in the diagram).
After being subjected to dust collection and, if necessary, desulfurization, denitrification, deodorization, etc., it is released into the atmosphere.
第１図に示す方法によれば、吸水材を良好なエネルギー
効率のもとに、容易かつ効率的に焼却処理することが可
能とされる。According to the method shown in FIG. 1, it is possible to easily and efficiently incinerate the water-absorbing material with good energy efficiency.
なお、第１図に示す方法は本発明の一実施例であって、
本発明はその要旨を超えない限り、図示の方法に何ら限
定されるものではない。Note that the method shown in FIG. 1 is an embodiment of the present invention, and
The present invention is not limited to the illustrated method in any way unless it exceeds the gist thereof.
［発明の効果］
以上詳述した通り、本発明の吸水材の焼却処理方法によ
れば、使い捨て紙おむつ等に代表される高分子吸水材等
の吸水材を、取扱い時の臭気発生を押えて、良好な作業
環境のもとに、容易かつ効率的に焼却処理することが可
能とされる。[Effects of the Invention] As detailed above, according to the incineration treatment method for water-absorbing materials of the present invention, water-absorbing materials such as polymeric water-absorbing materials, which are typified by disposable diapers, can be treated with less odor during handling. It is possible to easily and efficiently incinerate in a good working environment.
特に、請求項（２）の方法によれば、エネルギーの有効
利用が図れ、経済的である。また、請求項（３）の方法
によれば、汚泥の水分調整及び発熱量ｍ！Ｉを行なうこ
ともでき、汚泥の処理効率の向上を図ることができる。In particular, the method of claim (2) allows effective use of energy and is economical. Moreover, according to the method of claim (3), the moisture content of sludge can be adjusted and the calorific value m! I can also be carried out, and the sludge treatment efficiency can be improved.
第１図は本発明の吸水材の焼却処理方法の一実施方法を
示す系統図である。
１．６・・・コンベヤ、 ２・・・冷凍室、３・・
・冷凍コイル、 ４・・・冷凍機、５・・・粉砕機
、 ７・・・ホッパ、８・・・供給機、
９・・・流動床式焼却炉、１２．１３・・・流動床
、 １４．１５・・・伝熱管、１７・・・蒸気タービン
。
特許出願人 宇部興産株式会社
代理人 弁理士 重 野 剛
第１図FIG. 1 is a system diagram showing one implementation method of the incineration treatment method for water-absorbing materials of the present invention. 1.6...Conveyor, 2...Freezing room, 3...
・Refrigerating coil, 4... Freezer, 5... Grinder, 7... Hopper, 8... Supply machine,
9... Fluidized bed incinerator, 12.13... Fluidized bed, 14.15... Heat exchanger tube, 17... Steam turbine. Patent Applicant Ube Industries Co., Ltd. Agent Patent Attorney Tsuyoshi Shigeno Figure 1
Claims (3)
吸水材を冷凍固化させた後、粉砕し、得られた粉砕物を
焼却することを特徴とする吸水材の焼却処理方法。(1) A method for incinerating a water-absorbing material that has absorbed water, which comprises freezing and solidifying the water-absorbing material, pulverizing it, and incinerating the resulting pulverized material.
の少なくとも一部として使用することを特徴とする請求
項（１）に記載の吸水材の焼却処理方法。(2) The method for incinerating a water-absorbing material according to claim (1), characterized in that the steam recovered during the incineration process is used as at least a part of the power source of the refrigeration means.
徴とする請求項（１）又は（２）に記載の吸水材の焼却
処理方法。(3) The method for incinerating a water-absorbing material according to claim (1) or (2), wherein the pulverized material is mixed with sludge and then incinerated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2306621A JP2616223B2 (en) | 1990-11-13 | 1990-11-13 | Incineration method for water absorbent material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2306621A JP2616223B2 (en) | 1990-11-13 | 1990-11-13 | Incineration method for water absorbent material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04177014A true JPH04177014A (en) | 1992-06-24 |
| JP2616223B2 JP2616223B2 (en) | 1997-06-04 |
Family
ID=17959292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2306621A Expired - Lifetime JP2616223B2 (en) | 1990-11-13 | 1990-11-13 | Incineration method for water absorbent material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2616223B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021007910A (en) * | 2019-06-28 | 2021-01-28 | 花王株式会社 | Separation recovery method of component material of absorbent article |
| JP2021020437A (en) * | 2019-07-30 | 2021-02-18 | 花王株式会社 | Method of recovering recycled resource |
| JP2022169248A (en) * | 2021-04-27 | 2022-11-09 | 株式会社サムズ | Method for treating used paper diaper |
| JP2022169496A (en) * | 2021-04-27 | 2022-11-09 | 株式会社サムズ | Method for treating used paper diaper |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5286257A (en) * | 1976-01-12 | 1977-07-18 | Mitsubishi Electric Corp | Organic sludge treating method |
| JPS53110265A (en) * | 1977-03-05 | 1978-09-26 | Ebara Infilco Co Ltd | Burning of wastes |
-
1990
- 1990-11-13 JP JP2306621A patent/JP2616223B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5286257A (en) * | 1976-01-12 | 1977-07-18 | Mitsubishi Electric Corp | Organic sludge treating method |
| JPS53110265A (en) * | 1977-03-05 | 1978-09-26 | Ebara Infilco Co Ltd | Burning of wastes |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021007910A (en) * | 2019-06-28 | 2021-01-28 | 花王株式会社 | Separation recovery method of component material of absorbent article |
| JP2021020437A (en) * | 2019-07-30 | 2021-02-18 | 花王株式会社 | Method of recovering recycled resource |
| JP2022169248A (en) * | 2021-04-27 | 2022-11-09 | 株式会社サムズ | Method for treating used paper diaper |
| JP2022169496A (en) * | 2021-04-27 | 2022-11-09 | 株式会社サムズ | Method for treating used paper diaper |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2616223B2 (en) | 1997-06-04 |
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