JPH0140636Y2 - - Google Patents

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Publication number
JPH0140636Y2
JPH0140636Y2 JP1987052783U JP5278387U JPH0140636Y2 JP H0140636 Y2 JPH0140636 Y2 JP H0140636Y2 JP 1987052783 U JP1987052783 U JP 1987052783U JP 5278387 U JP5278387 U JP 5278387U JP H0140636 Y2 JPH0140636 Y2 JP H0140636Y2
Authority
JP
Japan
Prior art keywords
transfer roller
slurry
belt conveyor
pressurized
present
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
Application number
JP1987052783U
Other languages
Japanese (ja)
Other versions
JPS62184000U (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1987052783U priority Critical patent/JPH0140636Y2/ja
Publication of JPS62184000U publication Critical patent/JPS62184000U/ja
Application granted granted Critical
Publication of JPH0140636Y2 publication Critical patent/JPH0140636Y2/ja
Expired legal-status Critical Current

Links

Description

【考案の詳細な説明】 本考案は効率的な加圧脱水を行なうための装置
に関する。 従来スラリーの固形物を加圧脱水する手段とし
て種々の方法が提案されているが、いずれの方法
も固形物のケーキ層を形成せしめてこれを加圧処
理して脱水しているのが現状である。すなわち、
従来の脱水処理の考え方としては一旦ケーキ層を
形成させそのケーキ層を最後迄保ちながら種々の
加圧装置を使用して脱水する方法が一般的であつ
た、しかしながらこれらの従来法においてはほん
とうに満足し得るような脱水は行なえなかつた。 そこで本考案者は効率的な加圧脱水方法につい
て種々研究を重ねた結果本考案を完成するに至つ
た。 本考案はスラリー等の固形物を加圧脱水するに
際し、加圧処理した後、加圧されたケーキの全部
または一部を一旦ベルト等から剥離させた後、再
度加圧処理を行なうという手段をくり返し行なう
ことによつて固形物の脱水効率を著しく高めるこ
とに成功したものである。本考案の加圧処理され
た後のスラリーのケーキはその全部を剥離せしめ
た後、再度加圧処理を施すかあるいは加圧処理さ
れた後のケーキの一部を剥離した後残余のケーキ
と共に再度加圧処理する方法によつても行なうこ
とができる。本考案は、従来のベルトコンベア型
加圧脱水機あるいは真空加圧型脱水機等の加圧式
脱水方法であればいずれも使用することができ
る。 次に本考案の加圧脱水装置の1例について図面
により説明する。 第1図はベルトコンベア型脱水機の概略を示し
た時の側面図である。1,2は駆動のローラであ
り、3はろ布等の水透過性素材で作られた無端状
メツシユベルトコンベアで構成された固形物搬送
体であり、4,4′,4″,4はスラリーの固形
物をローラ表面に付着させるための転写ローラで
ある。転写ローラの素材としては金属、硬質ゴ
ム、プラスチツク等が好ましい。 まず駆動ローラ1,2の回転により無端状メツ
シユベルトコンベア3が同時に回動する。メツシ
ユベルトコンベア3上に乗つたスラリー5はまず
転写ローラ4によつて押圧されメツシユベルトコ
ンベア3を介して水分が分離され、ベルト上にケ
ーキ層が形成される。転写ローラ4に付着したス
ラリー中の固形物〔この場合、スラリー中の水分
が多いため転写ローラ4には固形物の付着はあま
りない〕は、転写ローラの回転にともなつてA区
間〔転写ローラ4と4′の間〕のベルト上に落と
され、一方転写ローラ4で押圧されベルトコンベ
アベルト3上にある固形物とともに次の転写ロー
ラ4′に搬送される。次いで転写ローラ4′で前記
と同じように加圧して転写ローラ4′に固形物の
一部を付着させて前記と同じようにB区間のケー
キ層上に落とす。同様にして転写ローラ4″,4
でも加圧して固形物の一部をローラ表面に付着
させ、次のCあるいはD区間に落として加圧脱水
を行なう。一般的に前記各転写ローラにおけるス
ラリー中の固形物の付着量は、4が一番少なく
4′,4″,4と順次付着量は多くなる。 上記ではスラリー中の固形物の一部が転写ロー
ラに付着する場合について説明したが、勿論スラ
リーの種類によつてはスラリー中の固形物いわゆ
るケーキ層をそつくり転写ローラに付着させても
よい。また無端ベルトコンベア3の素材も水透過
性を有しないゴム等の素材のものでも使用するこ
とができる。この場合は加圧脱水装置自体を例え
ば横に傾斜させて設置すればよい。 また転写ローラに付着した固形物はベルトコン
ベアの中央部に落下させる。そのための装置とし
ては第3図に示すように転写ローラの表面に添つ
て逆八の字状にドクターナイフ6を設ける。この
ドクターナイフ6は各転写ローラに設けることが
好ましい。またドクターナイフ6は第4図に示す
ような短ざく形の板状体をその一部に重ねるよう
にして逆八の字状に構成してもよい。 以上の固形物搬送体として無端ベルトコンベア
の場合について説明したが、本考案はさらに第5
図に示したような円筒状を固形物搬送体として使
用できることは勿論である。また第5図に示す円
筒形脱水機に真空装置を付設した真空脱水機にも
本考案は好適に使用できる。本考案のように加圧
処理をした後、一旦これを剥離した後再度加圧処
理を施す処理をくり返すことによつて従来の第6
図に示すようなケーキ層を形成せしめ、このケー
キ層を連続的に加圧する方法に比べ格段に脱水効
率を向上させることができる。 次に本考案における第1図に示した装置と従来
法における第6図に示したような装置によつて脱
水処理を行なつた場合の結果を示すと下記の通り
である。 【表】
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for efficient pressurized dehydration. Various methods have been proposed to dehydrate the solids in slurry under pressure, but all of these methods currently involve forming a cake layer of solids and dewatering this by applying pressure. be. That is,
The conventional approach to dehydration treatment was to first form a cake layer and then dehydrate using various pressurizing devices while maintaining that cake layer until the end. However, these conventional methods do not really Satisfactory dehydration could not be achieved. Therefore, the present inventor conducted various studies on efficient pressurized dehydration methods, and as a result, completed the present invention. The present invention uses a method of pressurizing and dehydrating solid materials such as slurry by first peeling off all or part of the pressurized cake from a belt, etc., and then performing the pressure treatment again. By repeating this process, we succeeded in significantly increasing the efficiency of dewatering solid materials. The slurry cake after pressure treatment of the present invention is peeled off completely and then pressure treated again, or a part of the cake after pressure treatment is peeled off and then reused together with the remaining cake. It can also be carried out by a method of pressure treatment. The present invention can be used with any pressurized dewatering method such as a conventional belt conveyor type pressurized dehydrator or vacuum pressurized dehydrator. Next, an example of the pressurized dehydration apparatus of the present invention will be explained with reference to the drawings. FIG. 1 is a side view schematically showing a belt conveyor type dehydrator. 1 and 2 are driving rollers, 3 is a solid material conveyor composed of an endless mesh belt conveyor made of water permeable material such as filter cloth, and 4, 4', 4'', 4 are This is a transfer roller for adhering the solid matter of the slurry to the roller surface. The material of the transfer roller is preferably metal, hard rubber, plastic, etc. First, the endless mesh belt conveyor 3 is rotated by the rotation of the drive rollers 1 and 2. The slurry 5 on the mesh belt conveyor 3 is first pressed by the transfer roller 4, water is separated through the mesh belt conveyor 3, and a cake layer is formed on the belt.Transfer As the transfer roller rotates, the solid matter in the slurry adhering to the roller 4 (in this case, there is not much solid matter adhering to the transfer roller 4 due to the large amount of water in the slurry) is transferred to section A [transfer roller 4]. and 4'], and is pressed by the transfer roller 4 and conveyed to the next transfer roller 4' together with the solid matter on the belt conveyor belt 3.Then, the transfer roller 4' transfers the solid material to the next transfer roller 4'. Apply pressure to make some of the solid matter adhere to the transfer roller 4' and drop it onto the cake layer in section B in the same way as above.In the same way, transfer rollers 4'', 4
However, pressure is applied to make some of the solids adhere to the roller surface, and the solids are dropped onto the next section C or D to perform pressure dehydration. In general, the amount of solid matter deposited in the slurry on each of the transfer rollers is the lowest at 4, and increases in order of 4', 4'', and 4.In the above, some of the solid matter in the slurry is transferred. Although we have explained the case where the slurry is attached to the roller, of course, depending on the type of slurry, the solids in the slurry, the so-called cake layer, may be warped and attached to the transfer roller.The material of the endless belt conveyor 3 may also have water permeability. It is also possible to use materials such as rubber, which do not have the same properties.In this case, the pressurized dewatering device itself can be installed, for example, by tilting it sideways.In addition, the solid matter attached to the transfer roller can be removed from the center of the belt conveyor. As a device for this purpose, a doctor knife 6 is provided along the surface of the transfer roller in an inverted figure-eight shape as shown in FIG. 3. It is preferable that this doctor knife 6 is provided on each transfer roller. The knife 6 may be constructed in an inverted figure-eight shape by partially overlapping a short rectangular plate-like body as shown in Fig. 4. In the case of an endless belt conveyor as the above solid material conveyor. However, the present invention further covers the fifth aspect.
Of course, a cylindrical shape as shown in the figure can be used as the solid material carrier. Further, the present invention can be suitably used in a vacuum dehydrator in which a vacuum device is attached to the cylindrical dehydrator shown in FIG. By repeating the process of applying pressure treatment as in the present invention, peeling it off, and applying pressure treatment again, the conventional 6
The dewatering efficiency can be significantly improved compared to a method in which a cake layer as shown in the figure is formed and this cake layer is continuously pressurized. Next, the results of dehydration treatment performed using the apparatus shown in FIG. 1 according to the present invention and the apparatus shown in FIG. 6 according to the conventional method are as follows. 【table】

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本考案に係る加圧脱水装置の側面概略
図を示し、第2図は第1図の一部拡大した側面図
を示し、第3図は第2図のイ−イ部における断面
図を示し、第4図はドクターナイフの一態様を示
す正面図を示し、第5図は本考案に係る円筒型加
圧脱水装置の側面図を示し、第6図は従来の加圧
型脱水装置の側面図を示す。
FIG. 1 shows a schematic side view of the pressurized dewatering device according to the present invention, FIG. 2 shows a partially enlarged side view of FIG. 1, and FIG. 4 is a front view showing an embodiment of a doctor knife, FIG. 5 is a side view of a cylindrical pressurized dehydrator according to the present invention, and FIG. 6 is a conventional pressurized dehydrator. shows a side view.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 駆動ローラによつて回動する無端状メツシユベ
ルトコンベアに軸写ローラを複数個圧接して設
け、且つ前記各軸写ローラに逆八の字状のドクタ
ーナイフを設けたことを特徴とする加圧脱水装
置。
A machining device characterized in that a plurality of axial copying rollers are provided in pressure contact with an endless mesh belt conveyor rotated by a drive roller, and each of the axial copying rollers is provided with a doctor knife in the shape of an inverted figure eight. Pressure dewatering equipment.
JP1987052783U 1987-04-09 1987-04-09 Expired JPH0140636Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987052783U JPH0140636Y2 (en) 1987-04-09 1987-04-09

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987052783U JPH0140636Y2 (en) 1987-04-09 1987-04-09

Publications (2)

Publication Number Publication Date
JPS62184000U JPS62184000U (en) 1987-11-21
JPH0140636Y2 true JPH0140636Y2 (en) 1989-12-04

Family

ID=30878261

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987052783U Expired JPH0140636Y2 (en) 1987-04-09 1987-04-09

Country Status (1)

Country Link
JP (1) JPH0140636Y2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5945949B2 (en) * 2012-08-30 2016-07-05 住友大阪セメント株式会社 Dehydration equipment and method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5416783A (en) * 1977-07-08 1979-02-07 Mitsui Mining & Smelting Eng Filtration dehydrating machine

Also Published As

Publication number Publication date
JPS62184000U (en) 1987-11-21

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