JPS5947493A - Sludge mixing and stirring apparatus - Google Patents
Sludge mixing and stirring apparatusInfo
- Publication number
- JPS5947493A JPS5947493A JP15819582A JP15819582A JPS5947493A JP S5947493 A JPS5947493 A JP S5947493A JP 15819582 A JP15819582 A JP 15819582A JP 15819582 A JP15819582 A JP 15819582A JP S5947493 A JPS5947493 A JP S5947493A
- Authority
- JP
- Japan
- Prior art keywords
- tank
- smelt
- green
- green liquor
- sludge
- 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.)
- Pending
Links
- 239000010802 sludge Substances 0.000 title claims description 10
- 238000003756 stirring Methods 0.000 title claims description 9
- 238000002156 mixing Methods 0.000 title claims description 7
- 241001062472 Stokellia anisodon Species 0.000 claims description 11
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 description 15
- 239000000126 substance Substances 0.000 description 6
- 238000011084 recovery Methods 0.000 description 5
- 239000007787 solid Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 229920005610 lignin Polymers 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004537 pulping Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 239000007832 Na2SO4 Substances 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000009993 causticizing Methods 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 229910052979 sodium sulfide Inorganic materials 0.000 description 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Paper (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
この発明はスラッジを混合攪拌する装置に係り、特に黒
液回収ボイラに取り付けたデシルピンクタンク内ノスラ
ッジを混合攪拌するのに好適な装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for mixing and stirring sludge, and particularly to a device suitable for mixing and stirring nosludge in a decyl pink tank attached to a black liquor recovery boiler.
製紙工程においてバルブを製造する場合には、木材成分
のセルローズ（繊維）とリグニン（樹脂）を分離してセ
ルローズのみを取り出す必要があるが、この場合化学的
分離を行なうためＮａｚＳやＮａＯＨ等の薬品を用いる
。蒸解や洗浄等のパルプ工程を経た溶解リグニンと上記
薬品を含む溶液は黒液と称する廃液として排出される。When manufacturing valves in the papermaking process, it is necessary to separate the wood components cellulose (fibers) and lignin (resin) and extract only the cellulose. In this case, chemical separation is performed using chemicals such as NazS and NaOH. Use. A solution containing dissolved lignin and the above-mentioned chemicals after pulping processes such as cooking and washing is discharged as a waste liquid called black liquor.
黒液回収ボイラはこの黒液を燃焼させて熱回収し、パル
プ上程に必要な蒸気を得ると共に黒液中に含有する無機
薬品を還元してＮ ａ、、２ＳやＮａ２Ｃｏｘ等として
回収する目的で使用される。The black liquor recovery boiler combusts this black liquor to recover heat and obtain the steam necessary for pulping, while also reducing the inorganic chemicals contained in the black liquor and recovering them as Na2S, Na2Cox, etc. used.
第１図は黒液回収ボイラを示し、回収ボイラ本体１に対
してＡフシレータ２により供給された黒液Ｂは対向する
炉壁に（４着し、乾燥した固形物は炉底に落下してチャ
ーベラｌ−３を形成しかつ燃焼する。燃焼排ガスはスク
リーン管４゜過熱器５．蒸発器６２節炭器７を経てこの
間に給水および蒸気と熱交換する。節炭器７を出た排ガ
スは煙道８を経て図示しない集塵器に至り含有するダス
ト分を除去した後、人気中に放出される。Figure 1 shows a black liquor recovery boiler, in which black liquor B supplied by A fusilator 2 to the recovery boiler main body 1 is deposited on the opposing furnace wall (4), and dried solids fall to the bottom of the furnace. The combustion exhaust gas passes through a screen pipe 4, a superheater 5, an evaporator 62, and an economizer 7, during which time it exchanges heat with feed water and steam.The exhaust gas leaving the economizer 7 is After passing through the flue 8 and reaching a dust collector (not shown) to remove the contained dust, it is released into the public.
一方チャーベット３において還元された薬品は、Ｎａ２
ｓ、 Ｎａ２００ｓ 、 Ｎａ２ＳＯ４等の高温の溶融
液（スメルト）と、てスメルトスバウト１３から排出さ
れデシルピングタンク１４に貯留される。On the other hand, the chemical reduced in Charbet 3 is Na2
A high temperature molten liquid (smelt) of s, Na200s, Na2SO4, etc. is discharged from the smelt bout 13 and stored in a desilling tank 14.
デシルピングタンク１４内には緑液と称するスメルトと
水との混合溶液が入っており、この緑液内にスメルトが
落下することによりスメルトは急激に冷却され固化する
。１５は緑液循環ポンプであり、タンク内の緑液を吸引
してタンク上部に設けたノズル１６から噴射し、スメル
トが緑液中に落下する直前にこのスメルトに苅して緑液
を噴霧して冷却すると共にこのスメルトを飛散させ、ス
メルトがタンク内で大きな塊となるのを防止している。The desilling tank 14 contains a mixed solution of smelt and water called green liquor, and as the smelt falls into this green liquor, the smelt is rapidly cooled and solidified. Reference numeral 15 denotes a green liquid circulation pump, which sucks the green liquid in the tank and injects it from a nozzle 16 provided at the top of the tank, and sprays the green liquid by brushing the smelt just before it falls into the green liquid. This smelt is cooled and scattered, preventing the smelt from forming large lumps inside the tank.
さらにタンク内には第２図に示す如く電動モータ等の駆
動装置ｔ１７により作動する攪拌機１８が設けてありタ
ンク内のスラッジを攪拌している。しかしこの攪拌機１
８によると緑液は一定の経路を経て流動する傾向を示す
ため、その流動経路以外の部分においてスラッジの攪拌
が不七分となり、溶融しないスラッジが堆積し、堆積層
１９ａ、１９ｂを形成してしまい所定の濃度の緑液を作
るのが困難となったり、タン−りの実効体積が減少する
等の問題が生している。なお、攪拌装置の設置基数を増
加させることでこの問題に４Ｊｊ＋ｉ５することも考え
られるが動力費の大幅な増加、デシルピンクタンクのＩ
′Ｉ１１￥造の複雑化等の問題が生し、現実的でない。Furthermore, as shown in FIG. 2, an agitator 18 operated by a drive device t17 such as an electric motor is provided in the tank to agitate the sludge in the tank. However, this stirrer 1
According to No. 8, since green liquor tends to flow through a certain path, the sludge is inconsistently stirred in areas other than the flow path, and unmelted sludge accumulates, forming deposited layers 19a and 19b. This causes problems such as it becomes difficult to prepare a green liquor of a predetermined concentration and the effective volume of the tank decreases. It is possible to solve this problem by increasing the number of stirring devices installed, but this would result in a significant increase in power costs and the I
'I11 It is not realistic as it causes problems such as complication of ¥ structure.
この発明は」一連した問題点を除去し、デシルピングタ
ンク内のスラッジの混合攪拌全効果的に行うことのでき
る装置に関する。The present invention relates to an apparatus which eliminates a series of problems and is capable of efficiently mixing and agitating sludge in a desilling tank.
要するにこの発明はデシルピングタンクの側壁接線方向
に循環緑液を噴射するノズルを複数本取りイ」け、デシ
ルピングタンク内に旋回流を形成してスラッジの混合、
攪拌を効果的に行なう装置である。In short, this invention has a plurality of nozzles that inject circulating green liquid in the tangential direction of the side wall of the decilling tank to form a swirling flow inside the decilling tank to mix the sludge.
This is a device that effectively performs stirring.
以下この発明の実施例を図面により説明する。Embodiments of the present invention will be described below with reference to the drawings.
第３図及び第４図において、デシルピンクタンク１４の
側壁下部に対してはこの側壁の接線方向に開口する緑液
噴射ノズル２，０が複数本（図示の場合は１２本）が取
り利けである。２１はこのノズル２０に対して循環緑液
を供給するヘッダである。２２は緑液循環ポンプであり
、デシルピンクタンク１４内の緑液を吸引して、一部を
ヘッダ２１を介してノズル２０に、残りをノズル１６に
供給する。In FIGS. 3 and 4, a plurality of green liquid injection nozzles 2, 0 (12 in the illustrated case) are installed at the lower part of the side wall of the decile pink tank 14 and open in the tangential direction of this side wall. It is. 21 is a header that supplies circulating green liquid to this nozzle 20. A green liquid circulation pump 22 sucks the green liquid in the Decyl Pink tank 14 and supplies part of it to the nozzle 20 via the header 21 and the rest to the nozzle 16.
以上の構成の装置において、スメルトはスメルトスパウ
ト１３を経てデシルピングタンク１４の緑液中に落下す
るが、この緑液に至る直前にノズル１６から噴射する循
環緑液により冷却されると共に飛散し、緑液中で小径の
粒子に固化する。In the apparatus configured as described above, the smelt passes through the smelt spout 13 and falls into the green liquid in the desilping tank 14, but just before reaching this green liquid, it is cooled and scattered by the circulating green liquid sprayed from the nozzle 16. Solidifies into small particles in green liquor.
一方各ノズル２ｏからも循環緑液が噴射してデシルピン
グタンク内に旋回流を形成し、前記固形物と緑液とから
成るスラッジの混合攪拌を良好に行ない固形物を溶融さ
せる。固形物の溶融により所定の濃度となった緑液は別
のポンプ２３により吸引され図示しない苛性化装置に送
られ再利用される。On the other hand, circulating green liquor is also injected from each nozzle 2o to form a swirling flow in the desilling tank, and the sludge consisting of the solids and green liquor is mixed and stirred well to melt the solids. The green liquor, which has reached a predetermined concentration by melting the solids, is sucked by another pump 23 and sent to a causticizing device (not shown) for reuse.
この発明を実施することにより、従来の様な特別な駆動
装置によって作動する攪拌機が不要となり、従来から使
用されている循環ポンプを利用することによって良好な
スラッジの混合攪拌を行うことができる。By carrying out the present invention, there is no need for a stirrer operated by a special drive device as in the past, and good mixing and stirring of sludge can be achieved by using a circulation pump that has been used in the past.
またタンク内に旋回流を形成するので未溶融物の堆積層
を形成することがなく、タンクの有効体積の減少を防止
することができる。Further, since a swirling flow is formed in the tank, a deposited layer of unmelted substances is not formed, and a reduction in the effective volume of the tank can be prevented.
第１図は黒液回収ボイラの断面１ズ、第２図は従来のデ
シルピングタンクの・ｌ’ ｉｎ７を示ず断面図、第３
図はこの発明に係る混合攪拌装置の断１ｆｉ７図、第４
図は第３図のＡ−Ａ線による断面図である。
１４・・・・・・デシルピンクタンク
２０・・・・・ノズル
２２・・・・・・緑液循環ポンプFigure 1 is a cross-sectional view of a black liquor recovery boiler, Figure 2 is a cross-sectional view of a conventional desilling tank without showing l'in7, and Figure 3 is a cross-sectional view of a conventional desilling tank.
The figure is a cross section of the mixing and stirring device according to the present invention.
The figure is a sectional view taken along the line A--A in FIG. 3. 14...Decyl pink tank 20...Nozzle 22...Green liquid circulation pump
Claims (1)
せこの固化した粒子を攪拌するものにおいて、タンク側
壁に対して複数本の循環緑液噴射ノズルを取り付け、か
っこの循環緑液噴射／ ７（ルを側壁接線方向に開口さ
せることによりタンク内に緑液の旋回流を形成し、この
旋回流により前記粒子を攪拌することを特徴とするスラ
ッジ混合攪拌装置。1. In a device that drops smelt into green liquor in a tank to solidify it and stirs the solidified particles, multiple circulating green liquor injection nozzles are attached to the side wall of the tank, and the circulating green liquor injection in parentheses/7 (A sludge mixing and stirring device characterized in that a swirling flow of green liquor is formed in a tank by opening a hole in a tangential direction of a side wall, and the particles are stirred by this swirling flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15819582A JPS5947493A (en) | 1982-09-13 | 1982-09-13 | Sludge mixing and stirring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15819582A JPS5947493A (en) | 1982-09-13 | 1982-09-13 | Sludge mixing and stirring apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5947493A true JPS5947493A (en) | 1984-03-17 |
Family
ID=15666345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15819582A Pending JPS5947493A (en) | 1982-09-13 | 1982-09-13 | Sludge mixing and stirring apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5947493A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63203891A (en) * | 1987-01-30 | 1988-08-23 | ロックウェル インターナショナル コーポレーション | Chemical recovery method |
| CN104712272A (en) * | 2014-08-01 | 2015-06-17 | 孙泽义 | Fast SW drilling fluid hydrating and preparing device |
| EP3322851A4 (en) * | 2015-07-16 | 2019-03-20 | Varo Teollisuuspalvelut OY | METHOD AND MEANS FOR CUTTING RECOVERY BOILER |
| US11828459B2 (en) | 2018-09-12 | 2023-11-28 | Varo Teollisuuspalvelut Oy | Cleaning of a recovery boiler |
-
1982
- 1982-09-13 JP JP15819582A patent/JPS5947493A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63203891A (en) * | 1987-01-30 | 1988-08-23 | ロックウェル インターナショナル コーポレーション | Chemical recovery method |
| CN104712272A (en) * | 2014-08-01 | 2015-06-17 | 孙泽义 | Fast SW drilling fluid hydrating and preparing device |
| EP3322851A4 (en) * | 2015-07-16 | 2019-03-20 | Varo Teollisuuspalvelut OY | METHOD AND MEANS FOR CUTTING RECOVERY BOILER |
| US10518300B2 (en) | 2015-07-16 | 2019-12-31 | Varo Teollisuuspalvelut Oy | Method and means for recovery boiler outage |
| AU2015402336B2 (en) * | 2015-07-16 | 2020-11-19 | Varo Teollisuuspalvelut Oy | Method and means for recovery boiler outage |
| US11828459B2 (en) | 2018-09-12 | 2023-11-28 | Varo Teollisuuspalvelut Oy | Cleaning of a recovery boiler |
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