JPH0735323A - Sludge treatment apparatus - Google Patents
Sludge treatment apparatusInfo
- Publication number
- JPH0735323A JPH0735323A JP5182303A JP18230393A JPH0735323A JP H0735323 A JPH0735323 A JP H0735323A JP 5182303 A JP5182303 A JP 5182303A JP 18230393 A JP18230393 A JP 18230393A JP H0735323 A JPH0735323 A JP H0735323A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- balls
- heat medium
- preheating tower
- dryer
- 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.)
- Withdrawn
Links
Landscapes
- Treatment Of Sludge (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、排水の生物学的処理
装置などから排出される余剰汚泥などの処理装置に関
し、より詳細には、金属ボールあるいはセラミックボー
ルを熱媒体として用い、焼却炉排ガスで同ボールを加熱
し、加熱されたボールで汚泥を乾燥させ、乾燥汚泥の焼
却排ガスで熱媒体ボールを予熱する汚泥処理装置に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a treatment device for surplus sludge discharged from a biological treatment device for waste water, and more specifically, it uses a metal ball or a ceramic ball as a heat medium to produce an exhaust gas from an incinerator. The present invention relates to a sludge treatment device that heats the same ball with the above method, dries the sludge with the heated ball, and preheats the heat medium ball with the exhaust gas of incineration of the dried sludge.
【０００２】[0002]
【従来の技術】排水処理装置などから排出される余剰汚
泥は焼却処理される場合が多い。通常、汚泥はかなりの
水分を含むので、焼却排ガスを用い汚泥を乾燥すれば、
省エネルギーの観点からも望ましい。2. Description of the Related Art Excess sludge discharged from wastewater treatment equipment is often incinerated. Normally, sludge contains a considerable amount of water, so if sludge is dried using incineration exhaust gas,
It is also desirable from the viewpoint of energy saving.
【０００３】一方、汚泥乾燥時に臭い成分などが蒸発
し、乾燥機から出る排ガスはかなり悪臭を放ち、この臭
い成分を分解するために再度温度を上げ、臭い成分を分
解させる必要がある。そのため、通常、焼却排ガスを直
接汚泥に接触させる乾燥システムは採用せず、排熱ボイ
ラーで焼却熱を蒸気として回収しその蒸気で汚泥を間接
加熱し乾燥させる。乾燥機で発生した排ガスは焼却炉で
焼却される（添付図２のフローシート参照）。On the other hand, when sludge is dried, odorous components and the like evaporate, and the exhaust gas emitted from the dryer gives off a bad odor, and it is necessary to raise the temperature again to decompose the odorous components to decompose them. Therefore, normally, a drying system in which the incineration exhaust gas is brought into direct contact with the sludge is not adopted, but the incineration heat is recovered as steam by the exhaust heat boiler, and the sludge is indirectly heated and dried by the steam. The exhaust gas generated by the dryer is incinerated in an incinerator (see the flow sheet in Figure 2).
【０００４】[0004]
【発明が解決しようとする課題】しかし、上記構成の汚
泥乾燥システムでは、汚泥は焼却排ガスで生じたボイラ
ー蒸気で加熱されるので、乾燥効率がよくない。However, in the sludge drying system having the above structure, the sludge is heated by the boiler steam generated by the incineration exhaust gas, so that the drying efficiency is not good.
【０００５】この発明の目的は、上記の点に鑑み、汚泥
を効率よく乾燥することができる汚泥処理装置を提供す
ることにある。In view of the above points, an object of the present invention is to provide a sludge treatment device capable of efficiently drying sludge.
【０００６】[0006]
【課題を解決するための手段】この発明による汚泥処理
装置は、上記目的を達成すべく工夫されたものであり、
熱媒体ボール(b) を充填し、かつ焼却排ガスで同ボール
(b) を加熱する予熱塔(1) と、予熱塔(1) から出た加熱
状態の熱媒体ボール(b) を汚泥貯槽(3) から来た汚泥
(a) と混合して、汚泥(a) を乾燥させる回転ドラム型の
乾燥機(2) と、乾燥機(2) から出た混合物を熱媒体ボー
ル(b) と乾燥汚泥(a) に分ける分離装置(4) と、分離さ
れた熱媒体ボール(b) を予熱塔(1) へリサイクルする搬
送装置(5)と、分離された乾燥汚泥(a) および分離装置
(4) で生じた臭い成分を焼却し、かつ発生した焼却排ガ
スを予熱塔(1) へ送る焼却炉(6) とを備えたものであ
る。The sludge treatment device according to the present invention has been devised to achieve the above object.
Fill the heat medium ball (b) with the incinerator exhaust gas.
The preheating tower (1) that heats (b) and the heated heating medium balls (b) that came out of the preheating tower (1) were sludge coming from the sludge storage tank (3).
A rotary drum dryer (2) that mixes with (a) to dry the sludge (a), and the mixture discharged from the dryer (2) is divided into a heating medium ball (b) and a dried sludge (a). Separation device (4), transfer device (5) for recycling the separated heat medium balls (b) to the preheating tower (1), separated dry sludge (a) and separation device
It is equipped with an incinerator (6) that incinerates the odorous components generated in (4) and sends the generated incinerator exhaust gas to the preheating tower (1).
【０００７】熱媒体ボール(b) は一般に金属ボールある
いはセラミックボールよりなる。分離装置(4) としては
振動篩いなどがよく用いられる。The heating medium balls (b) are generally made of metal balls or ceramic balls. A vibrating screen or the like is often used as the separating device (4).
【０００８】搬送装置(5) は、例えば、分離装置(4) か
ら出た熱媒体ボール(b) を上方へ運ぶリフト(9) と、リ
フト(9) の上端に連絡したスクリューコンベヤ(10)とよ
りなる。The transfer device (5) is, for example, a lift (9) for carrying the heat medium balls (b) discharged from the separating device (4) upward, and a screw conveyor (10) connected to the upper end of the lift (9). And consists of.
【０００９】[0009]
【作用】予熱塔(1) では、充填された熱媒体ボール(b)
と焼却排ガスとの接触面積が大きく、同ボール(b) の加
熱効率がよい。同様に、乾燥機(2) では、加熱状態の熱
媒体ボール(b) と汚泥との接触面積が大きく、やはり汚
泥の加熱効率がよい。また、一般に汚泥はある水分域で
は非常に粘着性を帯びるが、乾燥機(2) は回転ドラム型
のものであるので、汚泥(a) は乾燥機(2) 内で熱媒体ボ
ール(b) によって解砕され、そのため粘着汚泥による閉
塞トラブルを起きる恐れがない。[Operation] In the preheating tower (1), the filled heat medium balls (b)
The contact area with the incineration exhaust gas is large, and the heating efficiency of the ball (b) is good. Similarly, in the dryer (2), the contact area between the heated heating medium balls (b) and the sludge is large, and the sludge heating efficiency is also good. In addition, sludge is generally very sticky in a certain moisture range, but since the dryer (2) is of the rotating drum type, the sludge (a) is heated in the dryer (2) inside the heating medium ball (b). Therefore, there is no risk of clogging trouble due to sticky sludge.
【００１０】[0010]
【実施例】金属ボールあるいはセラミックボールよりな
る熱媒体ボール(b) を加熱する予熱塔(1) は、竪型の塔
で構成され、内部に熱媒体ボール(b) が充填されてい
る。後述する焼却炉(6) から来る焼却排ガスは予熱塔
(1) の下部から同塔へ入り上部から抜き出される。熱媒
体ボール(b) は予熱塔(1) の上端から同塔へ後述する搬
送装置(5) によって供給され、自重で塔内を下降し、塔
底より抜き出される。この下降間に熱媒体ボール(b) は
排ガスによって加熱される。EXAMPLE A preheating tower (1) for heating a heating medium ball (b) made of a metal ball or a ceramic ball is constituted by a vertical tower, and the heating medium ball (b) is filled inside. The incinerator exhaust gas coming from the incinerator (6) described later is a preheating tower.
It enters into the tower from the lower part of (1) and is extracted from the upper part. The heat medium balls (b) are supplied from the upper end of the preheating tower (1) to the preheating tower (1) by a transfer device (5) described later, descend in the tower by its own weight, and are withdrawn from the bottom of the tower. During this descent, the heat medium balls (b) are heated by the exhaust gas.
【００１１】汚泥貯槽(3) に貯えられた汚泥(a) は、ス
クリューコンベヤ(7) によって同槽(3) の底部から抜き
出され、予熱塔(1) から出た加熱状態の熱媒体ボール
(b) と共に乾燥機(2) へ送られる。The sludge (a) stored in the sludge storage tank (3) is extracted from the bottom of the tank (3) by the screw conveyor (7), and the heated heat medium balls discharged from the preheating tower (1).
It is sent to the dryer (2) together with (b).
【００１２】乾燥機(2) は横型回転ドラムで構成され、
ドラムの回転によって熱媒体ボール(b) と汚泥(a) がよ
く混合され、汚泥(a) は加熱状態の熱媒体ボール(b) に
よって乾燥される。乾燥機(2) 内では、汚泥(a) は常に
熱媒体ボール(b) によって混合、攪拌されているので、
一般に起こりがちな粘着汚泥による閉塞トラブルを起き
る恐れがない。The dryer (2) is composed of a horizontal rotary drum,
The heating medium balls (b) and the sludge (a) are well mixed by the rotation of the drum, and the sludge (a) is dried by the heating medium balls (b) in a heated state. In the dryer (2), the sludge (a) is always mixed and agitated by the heating medium balls (b),
There is no risk of causing clogging troubles due to sticky sludge, which tends to occur in general.
【００１３】乾燥機(2) から出た熱媒体ボール(b) と乾
燥汚泥(a) の混合物は分離装置(4)へ送られる。分離装
置(4) としては振動篩いなどがよく用いられる。分離装
置(4) によって上記混合物は熱媒体ボール(b) と乾燥汚
泥(a) に完全に分離される。乾燥汚泥(a) はスクリュー
コンベヤ(8) によって流動層炉型の焼却炉(6) へ送られ
る。この汚泥(a) は適度に解砕されているので、焼却炉
(6) での燃焼性がよい。乾燥機(2) で生じた臭い成分
は、送風機(11)によって焼却炉(6) の底部へ送られる。
乾燥汚泥および臭い成分は焼却炉(6) で焼却され、その
排ガスは前述した通り予熱塔(1) へ送られる。The mixture of the heat medium balls (b) and the dried sludge (a) discharged from the dryer (2) is sent to the separator (4). A vibrating screen or the like is often used as the separating device (4). The mixture (4) completely separates the mixture into the heating medium balls (b) and the dried sludge (a). The dried sludge (a) is sent to a fluidized bed furnace type incinerator (6) by a screw conveyor (8). This sludge (a) has been appropriately crushed, so the incinerator
Good flammability in (6). The odorous components generated in the dryer (2) are sent to the bottom of the incinerator (6) by the blower (11).
Dry sludge and odorous components are incinerated in the incinerator (6), and the exhaust gas is sent to the preheating tower (1) as described above.
【００１４】他方、分離された熱媒体ボール(b) は搬送
装置(5) によって予熱塔(1) へリサイクルされる。搬送
装置(5) は、例えば、分離装置(4) から出た熱媒体ボー
ル(b) を上方へ運ぶリフト(9) と、リフト(9) の上端に
連絡したスクリューコンベヤ(10)とよりなる。On the other hand, the separated heating medium balls (b) are recycled to the preheating tower (1) by the transfer device (5). The transfer device (5) is composed of, for example, a lift (9) for carrying the heat medium balls (b) discharged from the separation device (4) upward, and a screw conveyor (10) connected to the upper end of the lift (9). .
【００１５】なお、予熱塔(1) では汚泥の乾燥は行なわ
れないので、焼却炉排ガスに臭い成分あるいは未燃の有
機成分が含まれることはない。Since the sludge is not dried in the preheating tower (1), the incinerator exhaust gas does not contain odorous components or unburned organic components.
【００１６】[0016]
【発明の効果】この発明による汚泥乾燥機では、予熱塔
(1) に熱媒体ボール(b) を充填し、かつ焼却排ガスで同
ボール(b) を加熱するので、熱媒体ボール(b) と焼却排
ガスとの接触面積が大きく、同ボール(b) の加熱効率が
頗るよい。The sludge dryer according to the present invention has a preheating tower.
Since the heating medium ball (b) is filled in (1) and the ball (b) is heated by the incineration exhaust gas, the contact area between the heating medium ball (b) and the incineration exhaust gas is large, and The heating efficiency is very good.
【００１７】同様に、乾燥機(2) では予熱塔(1) から出
た加熱状態の熱媒体ボール(b) を汚泥貯槽(3) から来た
汚泥(a) と混合して、汚泥(a) を乾燥させるので、熱媒
体ボール(b) と汚泥との接触面積が大きく、やはり汚泥
の乾燥効率が高い。Similarly, in the dryer (2), the heated heating medium balls (b) discharged from the preheating tower (1) are mixed with the sludge (a) coming from the sludge storage tank (3), and the sludge (a ) Is dried, the contact area between the heat medium ball (b) and the sludge is large, and the sludge drying efficiency is also high.
【００１８】また、一般に汚泥はある水分域では非常に
粘着性を帯びるが、乾燥機(2) は回転ドラム型のもので
あるので、汚泥(a) は乾燥機(2) 内で熱媒体ボール(b)
によって解砕され、そのため粘着汚泥による閉塞トラブ
ルを起きる恐れがない。Further, sludge is generally very sticky in a certain moisture range, but since the dryer (2) is of a rotating drum type, the sludge (a) is heated in the dryer (2) in the heating medium ball. (b)
Therefore, there is no risk of clogging trouble due to sticky sludge.
【００１９】[0019]
【図１】この発明の実施例を示す系統図である。FIG. 1 is a system diagram showing an embodiment of the present invention.
【図２】従来技術を示すフローシートである。FIG. 2 is a flow sheet showing a conventional technique.
１：予熱塔 ２：乾燥機 ３：汚泥貯槽 ４：分離装置 ５：搬送装置 ６：焼却炉 ７：スクリューコンベヤ ８：スクリューコンベヤ ９：リフト １０：スクリューコンベヤ ａ：汚泥 ｂ：熱媒体ボール 1: Preheating tower 2: Dryer 3: Sludge storage tank 4: Separation device 5: Conveyor device 6: Incinerator 7: Screw conveyor 8: Screw conveyor 9: Lift 10: Screw conveyor a: Sludge b: Heat medium ball
Claims (1)
ガスで同ボール(b)を加熱する予熱塔(1) と、予熱塔(1)
から出た加熱状態の熱媒体ボール(b) を汚泥貯槽(3)
から来た汚泥(a) と混合して、汚泥(a) を乾燥させる回
転ドラム型の乾燥機(2) と、乾燥機(2) から出た混合物
を熱媒体ボール(b) と乾燥汚泥(a) に分ける分離装置
(4) と、分離された熱媒体ボール(b) を予熱塔(1) へリ
サイクルする搬送装置(5) と、分離された乾燥汚泥(a)
および分離装置(4) で生じた臭い成分を焼却し、かつ発
生した焼却排ガスを予熱塔(1) へ送る焼却炉(6) とを備
えた汚泥処理装置。1. A preheating tower (1) for filling a heating medium ball (b) and heating the ball (b) with incineration exhaust gas; and a preheating tower (1).
The heated heating medium balls (b) from the sludge storage tank (3)
The rotating drum type dryer (2) that mixes the sludge (a) from the dryer and dries the sludge (a), and the mixture discharged from the dryer (2) is mixed with the heating medium ball (b) and the dry sludge ( a) separating device
(4), a transfer device (5) for recycling the separated heat medium balls (b) to the preheating tower (1), and separated dried sludge (a)
And a sludge treatment device comprising an incinerator (6) for incinerating the odorous components generated in the separation device (4) and sending the generated incineration exhaust gas to the preheating tower (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5182303A JPH0735323A (en) | 1993-07-23 | 1993-07-23 | Sludge treatment apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5182303A JPH0735323A (en) | 1993-07-23 | 1993-07-23 | Sludge treatment apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0735323A true JPH0735323A (en) | 1995-02-07 |
Family
ID=16115936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5182303A Withdrawn JPH0735323A (en) | 1993-07-23 | 1993-07-23 | Sludge treatment apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0735323A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009248038A (en) * | 2008-04-09 | 2009-10-29 | Mhi Environment Engineering Co Ltd | Method and system for treating sludge |
| CN107435928A (en) * | 2016-05-25 | 2017-12-05 | 北京三态环境科技有限公司 | A kind of internal heat type domestic garbage pyrolysis system |
| KR102538607B1 (en) * | 2022-11-02 | 2023-05-30 | 조원경 | Screw dryer using grinding balls |
-
1993
- 1993-07-23 JP JP5182303A patent/JPH0735323A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009248038A (en) * | 2008-04-09 | 2009-10-29 | Mhi Environment Engineering Co Ltd | Method and system for treating sludge |
| CN107435928A (en) * | 2016-05-25 | 2017-12-05 | 北京三态环境科技有限公司 | A kind of internal heat type domestic garbage pyrolysis system |
| KR102538607B1 (en) * | 2022-11-02 | 2023-05-30 | 조원경 | Screw dryer using grinding balls |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20001003 |