JPH0358762B2 - - Google Patents
Info
- Publication number
- JPH0358762B2 JPH0358762B2 JP58081927A JP8192783A JPH0358762B2 JP H0358762 B2 JPH0358762 B2 JP H0358762B2 JP 58081927 A JP58081927 A JP 58081927A JP 8192783 A JP8192783 A JP 8192783A JP H0358762 B2 JPH0358762 B2 JP H0358762B2
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- drum
- vacuum pump
- slurry
- belt filter
- 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
Links
- 239000007788 liquid Substances 0.000 claims description 70
- 238000000926 separation method Methods 0.000 claims description 14
- 239000004744 fabric Substances 0.000 claims description 13
- 238000005192 partition Methods 0.000 claims description 13
- 239000002002 slurry Substances 0.000 claims description 12
- 230000018044 dehydration Effects 0.000 claims description 5
- 238000006297 dehydration reaction Methods 0.000 claims description 5
- 230000002265 prevention Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000463 material Substances 0.000 description 9
- 230000002093 peripheral effect Effects 0.000 description 6
- 239000010802 sludge Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
- B01D33/073—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/46—Several filtrate discharge conduits each connected to one filter element or group of filter elements
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Description
【発明の詳細な説明】
この発明はベルトフイルタにおける液濁防止
装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a liquid clouding prevention device in a belt filter.
一般にベルトフイルタは、第１図に示すように
真空脱水ドラム（以下ドラムと略す）１と、ロー
ル２と、上記ドラム１およびロール２を巻回した
無端布３によつて構成されている。上記ドラム
１は周囲がラジアル方向の隔壁により区分された
多数の液室により構成され、スラリー槽４に一
部分浸漬され、矢印イ方向に回転されるととも
に、ドラム１の各液室はパイプによりドラム端
部中央の回転自動バルブを経て真空ポンプ５に連
絡し内部が減圧され、ドラム１外面の無端布３
の面でスラリー槽４内のスラリーを吸引して固形
物をケーキとして布表面に残留させまた、ドラ
ム１の各液室内に吸い込まれた液は、回転自
動バルブを経てドラム１に連絡された液分離槽
６に移され、液ポンプ７によつて排出されるよ
うになつている。 Generally, a belt filter is composed of a vacuum dewatering drum (hereinafter abbreviated as drum) 1, a roll 2, and an endless cloth 3 around which the drum 1 and roll 2 are wound, as shown in FIG. The drum 1 is composed of a large number of liquid chambers whose circumference is divided by partition walls in the radial direction, and is partially immersed in the slurry tank 4 and rotated in the direction of arrow A. Each liquid chamber of the drum 1 is connected to the end of the drum by a pipe. It connects to the vacuum pump 5 through the rotary automatic valve in the center of the drum, and the internal pressure is reduced, and the endless cloth 3 on the outside of the drum 1
The slurry in the slurry tank 4 is sucked through the surface of the slurry tank 4, and the solid matter is left as a cake on the cloth surface.The liquid sucked into each liquid chamber of the drum 1 is transferred to the liquid connected to the drum 1 through an automatic rotary valve. The liquid is transferred to a separation tank 6 and discharged by a liquid pump 7.
ところで、上記ベルトフイルタにおいては、ド
ラム１の周面に無端布３を巻き掛ける構成であ
り、無端布３の両端部とドラム１の両端部とは
単なる接触状態になつているため、この接触部分
のわずかな隙間から、スラリー槽４内のスラリー
が直接ドラム１の各液室内に吸い込まれ、液
が汚れるといつた欠点があつた。 By the way, in the above-mentioned belt filter, the endless cloth 3 is wound around the circumferential surface of the drum 1, and since both ends of the endless cloth 3 and both ends of the drum 1 are in a mere contact state, this contact portion The slurry in the slurry tank 4 is directly sucked into each liquid chamber of the drum 1 through a small gap between the drums 1 and 1, resulting in the liquid being contaminated.
この発明は上記欠点を解消するためになされた
もので、ドラムの外周端部で吸い込んだ濁液と
ドラムの中央部で吸い込んだ清澄液とを別々に
取り出す構成にして、清澄な液を得ることがで
きる、ベルトフイルタにおける液濁防止装置を
提供することを目的とする。 This invention was made to solve the above-mentioned drawbacks, and it is possible to obtain clear liquid by separately taking out the turbid liquid sucked in at the outer peripheral end of the drum and the clear liquid sucked in the center of the drum. An object of the present invention is to provide a liquid turbidity prevention device in a belt filter that can perform the following steps.
以上この発明を図面に示す実施例に基づいて説
明する。 The present invention will be described above based on the embodiments shown in the drawings.
第２図ないし第４図はこの発明の一実施例を示
すもので、図中１０は第１図に示す従来例のドラ
ム１と同様にスラリー槽に下部を浸漬されたドラ
ムを示している。このドラム１０の外周面の両端
には片端面をドラム１０の端面と面一にした環状
の外側仕切材１１，１１′が各々取り付けられ、
外側仕切材１１，１１′の取付位置より少し内側
のドラム１０の両端部には環状の内側仕切材１
２，１２′が各々取り付けられドラム１０を構成
する多数の液室を更に３分割している。また、
上記各仕切材１１，１２および１１′，１２′の間
には通常の過室と同じように材サポート１３
が設けられ、各仕切材１１，１２，１１′，１
２′の外周面と材サポート１３の外周面とが面
一にされ、これらの外側に無端布１４が巻き掛
けられている。そして、上記３分割されたドラム
１０周囲の各液室の外側仕切材１１と内側仕切
材１２および１１′と１２′の間に外側液室R1
が、また、内側仕切材１２，１２′の間に中央
液室R2が各々形成されるようになつている。さ
らに、上記中央液室R2は第１液管１５によ
つて周知の回転自動バルブＢを介して第１液分
離槽１６に、また第１液ポンプ１７と真空ポン
プ１８とに各々連絡されている。さらにまた、上
記外側液室R1は第２液管１９によつて周知
の回転自動バルブＢを介して第２液分離槽２０
に、また第２液分離槽２０は第２液ポンプ２
１と真空ポンプ１８とに各々連絡されている。と
ころで図面には第１液管１５、第２液管１９
とも各々１本しか描かれていないが、実際には、
ドラム１０を構成する多数の過室よりドラム１
０の中心軸線を囲んで放射状に多数設けられ、こ
れらの各々が上記のように周知の回転自動バルブ
Ｂを介して第１液分離槽１６あるいは第２液
分離槽２０に連絡されている。 FIGS. 2 to 4 show an embodiment of the present invention, and numeral 10 in the figures indicates a drum whose lower part is immersed in a slurry tank, similar to the conventional drum 1 shown in FIG. Annular outer partition members 11 and 11' each having one end surface flush with the end surface of the drum 10 are attached to both ends of the outer peripheral surface of the drum 10,
An annular inner partition member 1 is installed at both ends of the drum 10 slightly inside the mounting position of the outer partition members 11, 11'.
2 and 12' are respectively attached to further divide the large number of liquid chambers constituting the drum 10 into three. Also,
Between each of the above-mentioned partition members 11, 12 and 11', 12', there is a material support 13 as in a normal over-chamber.
are provided, and each partition material 11, 12, 11', 1
The outer peripheral surface of 2' and the outer peripheral surface of the material support 13 are flush with each other, and an endless cloth 14 is wrapped around the outside thereof. Then, an outer liquid chamber R 1 is formed between the outer partition material 11 and the inner partition material 12 of each liquid chamber around the drum 10 divided into three parts, and between 11' and 12'.
However, a central liquid chamber R2 is also formed between the inner partition members 12, 12'. Further, the central liquid chamber R2 is connected by a first liquid pipe 15 to a first liquid separation tank 16 via a well-known rotary automatic valve B, and to a first liquid pump 17 and a vacuum pump 18. There is. Furthermore, the outer liquid chamber R 1 is connected to a second liquid separation tank 20 through a well-known rotary automatic valve B by a second liquid pipe 19.
In addition, the second liquid separation tank 20 is connected to the second liquid pump 2.
1 and a vacuum pump 18, respectively. By the way, the drawing shows the first liquid pipe 15 and the second liquid pipe 19.
Only one of each is depicted, but in reality,
Drum 1 is selected from a large number of chambers constituting drum 10.
A large number of valves are provided radially around the central axis of 0, and each of these is connected to the first liquid separation tank 16 or the second liquid separation tank 20 via the well-known rotary automatic valve B as described above.
次に上記のように構成されたこの発明の作用に
ついて説明する。 Next, the operation of this invention configured as described above will be explained.
真空脱水ドラム１０を用いて過を行うには、
まず、真空ポンプ１８を作動させて外側液室
R1と中央液室R2を減圧し、スラリー槽内の汚
水を無端布１４で過して外側液室R1と中
央側液室R2に吸い込む。この際、外側仕切材
１１の外周面と無端布１４の端部との接触部か
らスラリー槽内の汚泥が外側液室R1，R1に吸
い込まれ、外側液室R1内の過液の汚泥濃度
は中央液室R2内の過液の汚泥濃度よりも高
くなる。一方中央液室R2に吸い込まれた液
は布１４を通過したものがほとんどであるた
め、清澄度が高い。 To perform filtration using the vacuum dehydration drum 10,
First, operate the vacuum pump 18 to remove the outer liquid chamber.
The pressure in R 1 and the central liquid chamber R 2 is reduced, and the dirty water in the slurry tank is passed through the endless cloth 14 and sucked into the outer liquid chamber R 1 and the central liquid chamber R 2 . At this time, the sludge in the slurry tank is sucked into the outer liquid chambers R 1 and R 1 from the contact area between the outer peripheral surface of the outer partition material 11 and the end of the endless cloth 14, and the excess liquid in the outer liquid chamber R 1 is removed. The sludge concentration becomes higher than the sludge concentration of the filtrate in the central liquid chamber R2 . On the other hand, since most of the liquid sucked into the central liquid chamber R2 has passed through the cloth 14, its clarity is high.
外側液室R1，R1内の液は第２液管１９
を介して第２液分離槽２０に入り、第２液ポ
ンプ２１によつて排出される。また、中央液室
R2内の液は第１液管１５を介して第１液
分離槽１６に入り、第１液ポンプ１７によつて
排出される。すなわち、第１液分離槽１６から
清澄度の高い液を取り出すことができる。 The liquid in the outer liquid chambers R 1 and R 1 is transferred to the second liquid pipe 19
The liquid enters the second liquid separation tank 20 through the liquid separation tank 20 and is discharged by the second liquid pump 21. In addition, the central liquid chamber
The liquid in R 2 enters the first liquid separation tank 16 via the first liquid pipe 15 and is discharged by the first liquid pump 17 . That is, a highly clear liquid can be taken out from the first liquid separation tank 16.
なお、上記した実施例においてはドラム１０の
両端に外側液室R1を１つずつ形成しているが、
外側液室R1をドラム１０の両端にドラム１０
の軸線方向に沿つて複数形成してもよい。 In the above embodiment, one outer liquid chamber R1 is formed at each end of the drum 10, but
The outer liquid chamber R1 is connected to both ends of the drum 10.
A plurality of them may be formed along the axial direction.
以上説明したようにこの発明は、真空脱水ドラ
ムの外周面両端部と中央部との間に各々仕切材を
設け、上記両端部と中央部とを個々に液分離槽
を介して真空ポンプに連絡して構成したため、無
端布とドラム短端部との接触部から汚泥を吸い
込み、ドラム両端部で得られる液の汚泥濃度が
上昇しても、ドラム中央部で清澄な液を得るこ
とができ、また、この清澄な液を汚泥濃度の高
い液と別個に回収できるといつた優れた特長を
有する。 As explained above, the present invention provides partitioning materials between both ends and the center of the outer peripheral surface of a vacuum dehydration drum, and connects the ends and the center individually to a vacuum pump via a liquid separation tank. Because of this structure, sludge is sucked in from the contact area between the endless cloth and the short end of the drum, and even if the sludge concentration of the liquid obtained at both ends of the drum increases, a clear liquid can be obtained at the center of the drum. It also has the excellent feature that this clear liquid can be recovered separately from the liquid with a high sludge concentration.
第１図は一般のベルトフイルタを示す斜視図、
第２図ないし第４図はこの発明の一実施例を示す
もので、第２図はドラムの断面略図、第３図は第
２図の一部を拡大した断面図、第４図は構成図で
ある。
１０……真空脱水ドラム、１１，１１′……外
側仕切材、１２，１２′……内側仕切材、１４…
…無端布、１６……第１液分離槽、１８……
真空ポンプ、R1……外側液室、R2……中央
液室、２０……第２液分離槽。
Fig. 1 is a perspective view showing a general belt filter;
Figures 2 to 4 show an embodiment of the present invention, with Figure 2 being a schematic sectional view of the drum, Figure 3 being an enlarged sectional view of a part of Figure 2, and Figure 4 being a configuration diagram. It is. 10... Vacuum dehydration drum, 11, 11'... Outer partition material, 12, 12'... Inner partition material, 14...
...Endless cloth, 16...First liquid separation tank, 18...
Vacuum pump, R 1 ... outer liquid chamber, R 2 ... central liquid chamber, 20 ... second liquid separation tank.
Claims (1)
ロールとに、無端状の布を巻き掛け、上記真空
ポンプの作用でスラリーを吸引してスラリー中の
固形物をケーキとして布表面に形成し、スラリ
ー中の水分を液として取り出すように構成され
たベルトフイルタにおいて、上記真空脱水ドラム
の外周部に設けられた多数の液室内の両端部と
中央部との間には各々仕切材が設けられ、上記両
端部と中央部とが個々に液分離槽を介して真空
ポンプに連絡されて成ることを特徴とするベルト
フイルタにおける液濁防止装置。1. A vacuum dehydration drum connected to a vacuum pump,
An endless cloth is wrapped around the roll, and the slurry is suctioned by the action of the vacuum pump, solid matter in the slurry is formed as a cake on the cloth surface, and water in the slurry is taken out as a liquid. In the belt filter, partition members are provided between both ends and the center of the large number of liquid chambers provided on the outer periphery of the vacuum dehydration drum, and the both ends and the center are individually separated into liquid separation tanks. A liquid turbidity prevention device in a belt filter, characterized in that the belt filter is connected to a vacuum pump via a vacuum pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58081927A JPS59206021A (en) | 1983-05-11 | 1983-05-11 | Apparatus for preventing turbidity of liquid in belt filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58081927A JPS59206021A (en) | 1983-05-11 | 1983-05-11 | Apparatus for preventing turbidity of liquid in belt filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59206021A JPS59206021A (en) | 1984-11-21 |
| JPH0358762B2 true JPH0358762B2 (en) | 1991-09-06 |
Family
ID=13760091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58081927A Granted JPS59206021A (en) | 1983-05-11 | 1983-05-11 | Apparatus for preventing turbidity of liquid in belt filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59206021A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4739401B2 (en) * | 2008-12-24 | 2011-08-03 | 月島機械株式会社 | Solid-liquid separation device, filtration device, and solid-liquid separation method |
| KR101464959B1 (en) * | 2014-07-29 | 2014-11-25 | 서종화 | Inserting device for stud bolts |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI122775B (en) | 2004-09-07 | 2012-06-29 | Andritz Oy | Apparatus and method for treating pulp |
-
1983
- 1983-05-11 JP JP58081927A patent/JPS59206021A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4739401B2 (en) * | 2008-12-24 | 2011-08-03 | 月島機械株式会社 | Solid-liquid separation device, filtration device, and solid-liquid separation method |
| KR101464959B1 (en) * | 2014-07-29 | 2014-11-25 | 서종화 | Inserting device for stud bolts |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59206021A (en) | 1984-11-21 |
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