JPS63274414A - Treatment of sludge by vacuum dehydration and its equipment - Google Patents
Treatment of sludge by vacuum dehydration and its equipmentInfo
- Publication number
- JPS63274414A JPS63274414A JP62109154A JP10915487A JPS63274414A JP S63274414 A JPS63274414 A JP S63274414A JP 62109154 A JP62109154 A JP 62109154A JP 10915487 A JP10915487 A JP 10915487A JP S63274414 A JPS63274414 A JP S63274414A
- Authority
- JP
- Japan
- Prior art keywords
- filter cloth
- sludge
- sludge cake
- discharge roll
- pressurized air
- 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 abstract description 66
- 230000018044 dehydration Effects 0.000 title claims description 8
- 238000006297 dehydration reaction Methods 0.000 title claims description 8
- 239000004744 fabric Substances 0.000 claims abstract description 49
- 238000007664 blowing Methods 0.000 claims abstract description 4
- 238000001035 drying Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 9
- 239000011550 stock solution Substances 0.000 claims description 6
- 230000001154 acute effect Effects 0.000 abstract 1
- 238000007790 scraping Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 21
- 238000005188 flotation Methods 0.000 description 8
- 238000005507 spraying Methods 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- 239000002994 raw material Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Landscapes
- Treatment Of Sludge (AREA)
- Filtration Of Liquid (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、産業廃水や都市の下水廃水の処理として、廃
水処理装置からの汚泥を脱水処理する汚泥の真空脱水処
理方法及び装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method and apparatus for vacuum dehydration of sludge, which dehydrates sludge from a wastewater treatment device as a treatment for industrial wastewater and urban sewage wastewater.
ヘドロ、スラッジ、バルブ廃液等の工場廃水あるいは産
業廃液を廃水処理装置としての加圧浮上装置にかけ、こ
こからの汚泥原液をドラムに巻着する無端ベルト式の濾
布で吸着、乾燥、剥離させる濾過装置が、特開昭４７〜
１３７６５号公報、特開昭５０−１４６９７０号公報及
び特開昭５２−８１７６７号公報などに示されている。Filtration involves applying factory or industrial wastewater such as sludge, sludge, and valve wastewater to a pressure flotation device as a wastewater treatment device, and adsorbing, drying, and peeling the undiluted sludge using an endless belt-type filter cloth wrapped around a drum. The device was developed in Japanese Patent Application Publication No. 1973-
This method is disclosed in JP-A No. 13765, JP-A-50-146970, and JP-A-52-81767.
第３図はその一例を示すもので、まず装置から説明する
と、図中１は鋼板による円筒形で全体が複数の小室に分
割され、各室毎に濾液抜出のためのパイプを取付け、外
周にメツシュプレートを張設した真空吸引ドラム、２は
汚泥原液が供給されるバットである。Figure 3 shows an example of this. First, let us explain the equipment. In the figure, 1 is a cylindrical shape made of steel plate, and the whole is divided into a plurality of small chambers. Each chamber is equipped with a pipe for extracting the filtrate. 2 is a vacuum suction drum with a mesh plate stretched over it, and 2 is a vat to which the undiluted sludge is supplied.
このバット２内で前記真空吸引ドラム１は、下端部が汚
泥原液Ａに沈浸するように配設される。The vacuum suction drum 1 is disposed within the vat 2 so that its lower end is immersed in the sludge stock solution A.
図中３は真空吸引ドラム１と離間してかつこれと平行向
きに設けたディスチャージロールで、図示は省略するが
該ロールは表面に螺旋刃を形成した。In the figure, reference numeral 3 denotes a discharge roll provided apart from and parallel to the vacuum suction drum 1, and although not shown, this roll has a spiral blade formed on its surface.
この真空吸引ドラム１とディスチャージロール３間に、
ナイロン等の合成繊維を材質とし、無端ベルトとして形
成した濾布４を巻回する。Between this vacuum suction drum 1 and discharge roll 3,
A filter cloth 4 made of synthetic fiber such as nylon and formed as an endless belt is wound.
その場合、真空吸引ドラム１から出た濾布４はディスチ
ャージロール３で急角度に曲げられ、ガイドロール５．
６でガイドされて真空吸引ドラム１へと戻るが、ガイド
ロール５．６間には洗浄水散布用配管７を設け、またデ
ィスチャージロール３と第１のガイドロール５間でスク
レーパー８を濾布４に近接させて設けた。In that case, the filter cloth 4 coming out of the vacuum suction drum 1 is bent at a sharp angle by the discharge roll 3, and the filter cloth 4 is bent at a sharp angle by the discharge roll 3.
6 and returns to the vacuum suction drum 1. A pipe 7 for spraying cleaning water is provided between the guide rolls 5 and 6, and a scraper 8 is inserted between the discharge roll 3 and the first guide roll 5 to remove the filter cloth 4. It was placed close to.
図中９はディスチャージロール３の下方のホッパー、Ｉ
Ｏは洗浄水受けで、ここには洗浄水排出パイプ１１が連
結され、洗浄水はこの排出パイプ１１を介して加圧浮上
装置等へ戻されｌＩｉ環に供する。In the figure, 9 is a hopper below the discharge roll 3, I
O is a wash water receiver, to which a wash water discharge pipe 11 is connected, and the wash water is returned to the pressurized flotation device etc. through this discharge pipe 11 and is supplied to the IIi ring.
次に、かかる装置による汚泥処理方法を述べる。Next, a sludge treatment method using such an apparatus will be described.
真空吸引ドラム１及びディスチャージロール３は電動機
で減速機を介して回転駆動され、濾布４もそれにより回
動する。The vacuum suction drum 1 and the discharge roll 3 are rotationally driven by an electric motor via a speed reducer, and the filter cloth 4 is also rotated thereby.
バット２内に加圧浮上装置から供給される汚泥原液を張
込み、真空ポンプを始動するとドラム１の外周面が減圧
となり原液は濾布で濾過され脱水スラッジ（乾燥汚泥ケ
ーキ）が濾布面に付着する。When the vat 2 is filled with the sludge stock solution supplied from the pressurized flotation device and the vacuum pump is started, the pressure is reduced on the outer peripheral surface of the drum 1, the stock solution is filtered through the filter cloth, and the dehydrated sludge (dried sludge cake) is deposited on the filter cloth surface. adhere to.
このように真空吸引ドラム１面で濾布４に付着した汚泥
ケーキＢは、濾布４とともに移動していき、乾燥が行わ
れる。In this way, the sludge cake B adhering to the filter cloth 4 on the surface of the vacuum suction drum 1 moves together with the filter cloth 4 and is dried.
そして、ディスチャージロール３で濾布４が急角度で曲
げられることにより、汚泥ケーキＢも濾布４から剥離し
、ホンパー９にためられて排出され、外部処理が行われ
る。ディスチャージロール３下のスクレーパー８はかか
る汚泥ケーキの剥離を助けるものである。Then, by bending the filter cloth 4 at a steep angle by the discharge roll 3, the sludge cake B is also peeled off from the filter cloth 4, collected in the omper 9 and discharged, and external treatment is performed. The scraper 8 below the discharge roll 3 helps to remove the sludge cake.
一方、汚泥ケーキＢを落とした濾布４は洗浄水散布用配
管７で洗浄され、再度真空吸引ドラム１へと移行する。On the other hand, the filter cloth 4 on which the sludge cake B has been dropped is washed by the washing water spraying pipe 7, and transferred to the vacuum suction drum 1 again.
そして、洗浄水は排出パイプ１１により汚泥原料部門と
しての加圧浮上装置へ戻される。The wash water is then returned to the pressurized flotation device as the sludge raw material section through the discharge pipe 11.
ところで、原料となる汚泥原液は加圧浮上装置から供給
されるが、含水率及び含有成分の変化により性状が変化
し、水分が多くなったり、粘着性が強くなったりすると
、ディスチャージロールでの濾布からの剥離が著しく悪
化することがある。By the way, the undiluted sludge that serves as the raw material is supplied from a pressure flotation device, but its properties change due to changes in the moisture content and components, and if the water content increases or the sludge becomes strong, the sludge cannot be filtered using a discharge roll. Peeling from the fabric may become significantly worse.
前記のごとくディスチャージロールではロール表面を螺
旋刃として濾布のシワを防止するとともに汚泥ケーキの
剥離を促進し、またスクレーパーでもこのケーキの剥離
を助けているが、これらでは充分ではなく、剥離されな
い汚泥ケーキはディスチャージロールの下に入り込み、
濾布が洗浄されるときにこの洗浄水の中へ混入する。As mentioned above, the discharge roll uses spiral blades on the roll surface to prevent wrinkles on the filter cloth and promote the peeling of the sludge cake, and the scraper also helps peel off the cake, but these are not sufficient and the sludge that is not peeled off. The cake goes under the discharge roll,
When the filter cloth is washed, it is mixed into this washing water.
該洗浄水は前記のごとく排出パイプにより加圧浮上装置
の原料部門に戻されるものであり、これに汚泥が混入す
ると汚泥の循環量が増加し、装置全体の効率低下ともな
る。As mentioned above, the wash water is returned to the raw material section of the pressure flotation device through the discharge pipe, and if sludge is mixed into this water, the amount of sludge circulated will increase and the efficiency of the entire device will be reduced.
本発明の目的は前記従来例の不都合を解消し、効果的に
汚泥ケーキを濾布から剥離できる汚泥の真空脱水処理方
法及び装置を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a method and apparatus for vacuum dehydration of sludge, which eliminates the disadvantages of the prior art and can effectively peel off a sludge cake from a filter cloth.
本発明は前記目的を達成するため、バット内で部分的に
汚泥に沈浸する真空吸引ドラムと該ドラムと離間させて
設けたディスチャージロールとの間に無端ベルト式濾布
を巻回し、該ディスチャージロールでの濾布の折返り角
度を急なものとしてここで汚泥ケーキの剥離を行う汚泥
の真空脱水処理装置において、ディスチャージロールの
近傍に加圧空気噴出管をその噴出方向を濾布外面に向け
て配設し、乾燥汚泥ケーキの付着した濾布の表面に加圧
空気を吹付け、これで汚泥ケーキの剥離を強制的に行う
ことを要旨とするものである。In order to achieve the above object, the present invention winds an endless belt type filter cloth between a vacuum suction drum partially immersed in sludge in a vat and a discharge roll provided apart from the drum. In a sludge vacuum dehydration treatment device in which the sludge cake is separated by making the folding angle of the filter cloth steep, a pressurized air jet pipe is installed near the discharge roll with its jet direction directed toward the outer surface of the filter cloth. The gist of this method is to blow pressurized air onto the surface of the filter cloth to which the dried sludge cake has adhered, thereby forcibly removing the sludge cake.
本発明によれば、濾布がディスチャージロールで急角度
に折返され、この部分で汚泥ケーキが剥離される前に、
事前に濾布の表面から加圧空気を吹付けてこれで付着し
た汚泥ケーキを直接吹き飛ばしたり、濾布面から浮き上
がらせたり、また乾燥を促進させたりする。その結果、
ディスチャージロールでの汚泥ケーキの剥離作業性が著
しく向上する。According to the present invention, the filter cloth is folded back at a steep angle by the discharge roll, and before the sludge cake is peeled off at this part,
Pressurized air is blown from the surface of the filter cloth in advance to directly blow off the adhered sludge cake, lift it off the surface of the filter cloth, and accelerate drying. the result,
The workability of removing sludge cake with a discharge roll is significantly improved.
以下、図面について本発明の実施例を詳細に説明する。 Embodiments of the present invention will be described in detail below with reference to the drawings.
第１図は本発明の汚泥の真空脱水処理装置の１実施例を
示すもので、前記従来例を示す第３図と同一構成要素に
は同一参照符号を付してあり、詳細説明は省略する。FIG. 1 shows one embodiment of the sludge vacuum dehydration treatment apparatus of the present invention, and the same components as in FIG. 3 showing the conventional example are given the same reference numerals, and detailed explanation will be omitted. .
バット２内で一部を汚泥原液Ａに沈浸するように設けた
真空吸収ドラム１とこれと離れかつ平行に設けたディス
チャージロール３間に無端ベルト式の濾布４を巻回し、
該濾布４はディスチャージロール３で急角度で折返され
るようにガイドロール５，６をセントした。An endless belt type filter cloth 4 is wound between a vacuum absorption drum 1 provided so as to be partially immersed in the sludge stock solution A in a vat 2 and a discharge roll 3 provided parallel to and apart from the drum 1.
The guide rolls 5 and 6 were placed so that the filter cloth 4 was folded back at a steep angle by the discharge roll 3.
また、ディスチャージロール３下にスクレーパー８を設
け、さらにガイドロール５，６間に洗浄水散布用配管７
を配設する。In addition, a scraper 8 is provided below the discharge roll 3, and a pipe 7 for spraying cleaning water is provided between the guide rolls 5 and 6.
to be placed.
スクレーパー８の下方にホッパー９を置き、また洗浄水
散布用配管７の下方に洗浄水受け１０を設け、ここに取
付ける洗浄水排出バイブ１１は汚泥原液供給源の加圧浮
上装置等へ連通するものである。A hopper 9 is placed below the scraper 8, and a wash water receiver 10 is provided below the wash water spray pipe 7, and a wash water discharge vibrator 11 attached thereto communicates with a pressurized flotation device, etc. of the sludge raw solution supply source. It is.
以上が従来装置と同一構成であるが、本発明はさらにデ
ィスチャージロール３の近傍、例えば少し上方に加圧空
気噴出管１２を設けた。該加圧空気噴出管１２は第２図
に示すように５ｃｍ程度の間隔で１１程度の細孔による
噴射孔１２ａを形成し、これを濾布外面に向けたもので
、加圧空気の圧力は５ＫＧ／ｃｍ’Ｇ程度とする。Although the configuration described above is the same as that of the conventional device, the present invention further includes a pressurized air jet pipe 12 near the discharge roll 3, for example, slightly above it. As shown in FIG. 2, the pressurized air injection pipe 12 has injection holes 12a made up of about 11 pores at intervals of about 5 cm, which are directed toward the outer surface of the filter cloth, and the pressure of the pressurized air is It should be about 5KG/cm'G.
次に、このような装置を用いて行う本発明方法を説明す
る。Next, a method of the present invention using such an apparatus will be explained.
バット２内で真空吸引ドラム１の面で無端ヘルド式濾布
４に付着した汚泥は、ドラム１の回転に伴い濾布４とと
もに移動し、またドラム１円からの真空吸引で乾燥され
汚泥ケーキＢとなる。The sludge adhering to the endless heddle type filter cloth 4 on the surface of the vacuum suction drum 1 in the vat 2 moves with the filter cloth 4 as the drum 1 rotates, and is dried by the vacuum suction from the drum 1 to form a sludge cake B. becomes.
該汚泥ケーキＢは濾布４によりディスチャージロール３
の方へと運ばれ、加圧空気噴出管１２の直下に来るとそ
の噴射孔１２ａから出る加圧空気で吹き飛ばされ、また
は濾布４の表面から浮き上がらされ、同時にさらに乾燥
される。このようにしである程度加圧空気の吹付けで汚
泥ケーキＢは剥離され、さらに残りのものはディスチャ
ージロール３で濾布４が急角度で折返す時に自然落下及
びスクレーバー８でのこそぎ落としにより剥離される。The sludge cake B is transferred to a discharge roll 3 by a filter cloth 4.
When it comes directly under the pressurized air jet pipe 12, it is blown away by the pressurized air coming out of the jet hole 12a or lifted off the surface of the filter cloth 4, and is further dried at the same time. In this way, the sludge cake B is peeled off to some extent by blowing pressurized air, and the remaining cake is peeled off by falling naturally when the filter cloth 4 is folded at a steep angle by the discharge roll 3 and scraped off by the scraper 8. be done.
汚泥ケーキＢを落とした濾布４は洗浄水散布用配管７で
洗浄され、再度真空吸引ドラム１へと移行する。そして
、洗浄水は排出バイブ１１により汚泥原料部門としての
加圧浮上装置へ戻される。The filter cloth 4 on which the sludge cake B has been dropped is washed by the washing water spraying pipe 7, and transferred to the vacuum suction drum 1 again. The wash water is then returned to the pressurized flotation device as a sludge raw material section by the discharge vibrator 11.
ところで、バット２内へ供給される汚泥原液Ａは水分９
７〜９８％、固定物２〜３％で、また処理物としての汚
泥ケーキＢは水分８０〜７５％、固定物２０〜２５％で
あるが、本発明を試験的に実施してみたところ、従来の
剥離率が２０％〜８０％であったのを８０〜９０％まで
向上させることができた。By the way, the sludge stock solution A supplied into the vat 2 has a water content of 9
7 to 98% and fixed matter 2 to 3%, and sludge cake B as a treated product has a moisture content of 80 to 75% and fixed matter 20 to 25%, but when the present invention was experimentally implemented, The conventional peeling rate was 20% to 80%, but we were able to improve it to 80% to 90%.
以上述べたように本発明の汚泥の真空脱水処理方法及び
装置は、効果的に汚泥ケーキを濾布から剥離できるもの
であり、常に安定した剥離が行われるので、洗浄水への
汚泥の混入を少な（して、全体の処理作業効率を向上さ
せることができるものである。As described above, the sludge vacuum dehydration treatment method and apparatus of the present invention can effectively peel off the sludge cake from the filter cloth, and since stable peeling is always performed, the contamination of sludge into the wash water is prevented. (Thus, the overall processing efficiency can be improved.)
第１図は本発明の汚泥の真空脱水処理方法及び装置の１
実施例を示す説明図、第２図は同上要部の斜視図、第３
図は従来例を示す説明図である。
１・・・真空吸引ドラム ２・・・バット３・・・デ
ィスチャージロール
４・・・濾布 ５，６・・・ガイドロール
７・・・洗浄水散布用配管 ８・・・スクレーバー９・
・・ホッパー １０・・・洗浄水受け１１・・
・洗浄水排出バイブ １２・・・加圧空気噴出管１２ａ
・・・噴射孔Figure 1 shows a method and apparatus for vacuum dehydration of sludge according to the present invention.
An explanatory diagram showing an embodiment, FIG. 2 is a perspective view of the main parts of the above, and FIG.
The figure is an explanatory diagram showing a conventional example. 1...Vacuum suction drum 2...Vat 3...Discharge roll 4...Filter cloth 5, 6...Guide roll 7...Washing water spraying pipe 8...Scraper 9.
...Hopper 10...Cleaning water receiver 11...
・Washing water discharge vibrator 12...pressurized air jet pipe 12a
...Injection hole
Claims (2)
汚泥を、該濾布の移動に伴い乾燥させながら運び、ディ
スチャージロールで濾布が折返すときに乾燥した汚泥ケ
ーキを剥離させる汚泥の真空脱水処理方法において、乾
燥した汚泥ケーキの付着した濾布の表面に加圧空気を吹
付け、これで汚泥ケーキの剥離を強制的に行うことを特
徴とする汚泥の真空脱水処理方法。(1) The sludge adhering to the endless belt type filter cloth on the surface of the vacuum suction drum is transported while drying as the filter cloth moves, and when the filter cloth is folded back by the discharge roll, the dried sludge cake is peeled off. A method for vacuum dehydration of sludge, which comprises blowing pressurized air onto the surface of a filter cloth to which a dried sludge cake has adhered, thereby forcibly removing the sludge cake.
ドラムと該ドラムと離間させて設けたディスチャージロ
ールとの間に無端ベルト式濾布を巻回し、該ディスチャ
ージロールでの濾布の折返り角度を急なものとしてここ
で汚泥ケーキの剥離を行う汚泥の真空脱水処理装置にお
いて、ディスチャージロールの近傍に加圧空気噴出管を
その噴出方向を濾布外面に向けて配設したことを特徴と
する汚泥の真空脱水処理装置。(2) An endless belt-type filter cloth is wound between a vacuum suction drum that is partially submerged in the sludge stock solution in the vat and a discharge roll provided apart from the drum, and the filter cloth is folded on the discharge roll. A sludge vacuum dewatering device in which the sludge cake is peeled off with a steep turning angle, characterized in that a pressurized air jet pipe is disposed near the discharge roll with its jet direction directed toward the outer surface of the filter cloth. Vacuum dewatering equipment for sludge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62109154A JPS63274414A (en) | 1987-05-01 | 1987-05-01 | Treatment of sludge by vacuum dehydration and its equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62109154A JPS63274414A (en) | 1987-05-01 | 1987-05-01 | Treatment of sludge by vacuum dehydration and its equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63274414A true JPS63274414A (en) | 1988-11-11 |
Family
ID=14503000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62109154A Pending JPS63274414A (en) | 1987-05-01 | 1987-05-01 | Treatment of sludge by vacuum dehydration and its equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63274414A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106422488A (en) * | 2016-09-19 | 2017-02-22 | 成都测迪森生物科技有限公司 | Ceramic filter |
| JP2022552929A (en) * | 2020-04-10 | 2022-12-21 | エッサ コーポレーション | A multi-structure filtering device that filters, separates, and dehydrates foreign matter in water |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4843267B1 (en) * | 1970-04-07 | 1973-12-18 | ||
| JPS5245772A (en) * | 1975-10-09 | 1977-04-11 | Dai Tekkosho:Kk | Dewatering apparatus |
-
1987
- 1987-05-01 JP JP62109154A patent/JPS63274414A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4843267B1 (en) * | 1970-04-07 | 1973-12-18 | ||
| JPS5245772A (en) * | 1975-10-09 | 1977-04-11 | Dai Tekkosho:Kk | Dewatering apparatus |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106422488A (en) * | 2016-09-19 | 2017-02-22 | 成都测迪森生物科技有限公司 | Ceramic filter |
| CN106422488B (en) * | 2016-09-19 | 2018-11-20 | 成都测迪森生物科技有限公司 | A kind of ceramic filter |
| JP2022552929A (en) * | 2020-04-10 | 2022-12-21 | エッサ コーポレーション | A multi-structure filtering device that filters, separates, and dehydrates foreign matter in water |
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