CN110723841A - High algae-containing ground water treatment facilities - Google Patents

High algae-containing ground water treatment facilities Download PDF

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Publication number
CN110723841A
CN110723841A CN201911147555.8A CN201911147555A CN110723841A CN 110723841 A CN110723841 A CN 110723841A CN 201911147555 A CN201911147555 A CN 201911147555A CN 110723841 A CN110723841 A CN 110723841A
Authority
CN
China
Prior art keywords
filter element
treatment tank
peripheral side
pipe
inner cleaning
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
Application number
CN201911147555.8A
Other languages
Chinese (zh)
Inventor
严子莹
刘丽
涂美华
赵绮婷
谢雨欣
夏炜
李帅
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Foshan University
Original Assignee
Foshan University
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 by Foshan University filed Critical Foshan University
Priority to CN201911147555.8A priority Critical patent/CN110723841A/en
Publication of CN110723841A publication Critical patent/CN110723841A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D33/00Filters with filtering elements which move during the filtering operation
    • B01D33/06Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
    • B01D33/073Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward flow filtration
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D33/00Filters with filtering elements which move during the filtering operation
    • B01D33/44Regenerating the filter material in the filter
    • B01D33/46Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
    • B01D33/466Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element scrapers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D33/00Filters with filtering elements which move during the filtering operation
    • B01D33/44Regenerating the filter material in the filter
    • B01D33/48Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B01D33/50Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D33/00Filters with filtering elements which move during the filtering operation
    • B01D33/44Regenerating the filter material in the filter
    • B01D33/52Regenerating the filter material in the filter by forces created by movement of the filter element
    • B01D33/56Regenerating the filter material in the filter by forces created by movement of the filter element involving centrifugal force
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D35/00Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/14Safety devices specially adapted for filtration; Devices for indicating clogging
    • B01D35/143Filter condition indicators
    • B01D35/1435Filter condition indicators with alarm means
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • C02F1/5245Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/007Contaminated open waterways, rivers, lakes or ponds

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

The invention discloses a device for treating high algae-containing ground water, and relates to the technical field of water treatment. The invention comprises a treatment tank, wherein a cavity is fixedly arranged in the treatment tank; the upper part of the treatment tank is communicated with a water inlet pipe; the lower part of the treatment tank is communicated with a sewage discharge pipe; the inner wall of the cavity is rotatably connected with a filter element through a bearing; the bottom surface of the treatment tank is rotatably connected with a purified water outlet pipe through a bearing; the upper end of the purified water outlet pipe is fixedly communicated with the filter element; an inner cleaning pipe is fixedly arranged at the top of the treatment tank; the lower end of the inner cleaning pipe penetrates through the filter element and extends into the filter element; the peripheral side surface of the inner cleaning pipe is rotationally connected with the filter element through a bearing. According to the invention, through the design of the transmission motor and the filter element, the flocculation impurities remained after the flocculation of the raw water with high algae content can be quickly separated, and through the rotary design of the inner cleaning spray head and the filter element, the filter element can quickly remove the impurities adhered to the surface of the filter element under the action of water flow and centrifugal force.

Description

High algae-containing ground water treatment facilities
Technical Field
The invention belongs to the technical field of water treatment, and particularly relates to a device for treating high-algae-content ground water.
Background
The ground water refers to water in rivers, lakes and reservoirs, the ground water body is a natural collection place of rainfall, and the water falling to the ground flows along surface runoff and flows along the low part of the high land direction of the terrain, and finally is collected in local rivers to form a river basin of the river.
In the prior art, a plurality of methods for treating raw water containing algae are available, but algae removal is not a separate process and can be combined with other processes in a water plant such as coagulation, sedimentation, filtration and disinfection to obtain a good algae removal effect, and the common treatment methods are as follows: (1) adopting a micro-filter: the efficiency of the micro-filter for removing algae is greatly different according to the types of algae, the finest algae is difficult to remove and sometimes is only about 10%, however, the amount of the coagulation agent required by the algae in the coagulation stage is the largest, and the turbidity which can be removed by the micro-filter is not large, so that the amount of the coagulation agent cannot be obviously reduced when the micro-filter is used for pre-filtering; (2) pre-oxidation: certain algae, such as green algae, can be oxidized with oxidants such as Cl2, O3, KMnO4, and ClO2 to increase the removal effect; (3) coagulating; (4) clarification or air flotation. The water works in Kunming, Wuhan and Wuxi areas in China adopt the air floatation tank, and the purposes of clarification and algae removal can be achieved simultaneously. (5) And (5) filtering. Direct filtration is not suitable for treating water with extremely high algae content, and a precipitation or clarification process is added before a filter tank, but the filtering device used in the prior art has the problem of short service life, thereby greatly increasing the treatment cost of raw algae water.
Disclosure of Invention
The invention aims to provide a device for treating high algae-containing ground water, which solves the problem of short service life of a filtering device used in the existing high algae-containing water treatment by the design of an internal cleaning spray head, a filter element and a transmission motor.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a device for treating high algae-containing ground water, which comprises a treatment tank, wherein a cavity is fixedly formed in the treatment tank; the upper part of the treatment tank is communicated with a water inlet pipe; the lower part of the treatment tank is communicated with a sewage discharge pipe; the inner wall of the cavity is rotatably connected with a filter element through a bearing; the bottom surface of the treatment tank is rotatably connected with a purified water outlet pipe through a bearing; the upper end of the purified water outlet pipe is fixedly communicated with the filter element; an inner cleaning pipe is fixedly arranged at the top of the treatment tank; the lower end of the inner cleaning pipe penetrates through the filter element and extends into the filter element; the peripheral side surface of the inner cleaning pipe is rotationally connected with the filter element through a bearing; the peripheral side surface of the inner cleaning pipe is communicated with a plurality of groups of inner cleaning spray heads; the bottom surface of the treatment tank is fixedly connected with a transmission motor; the peripheral side surface of the purified water outlet pipe is fixedly connected with a driven gear; one end of the output shaft of the transmission motor is in transmission connection with the driven gear through a gear;
the peripheral side surface of the filter element is fixedly connected with a group of connecting frames; the circumferential side surface of the connecting frame is fixedly connected with a plurality of scraping plates; a plurality of scraper blade one surface all with handle the tank inner wall laminating.
Furthermore, a first flowmeter is arranged on the peripheral side surface of the water inlet pipe; a second flowmeter is arranged on the peripheral side surface of the purified water outlet pipe; the peripheral side surface of the treatment tank is fixedly connected with a control cabinet; and one ends of the data output ports of the first flowmeter and the second flowmeter are electrically connected with the control cabinet.
Furthermore, valves are arranged on the peripheral side surfaces of the sewage discharge pipe and the purified water outlet pipe; the connecting frame is of a net structure.
Further, the filter element is a hollow cylindrical multilayer composite structure; the filter element comprises two activated carbon filter layers; and an ultrafiltration membrane filter layer is fixedly arranged between the opposite surfaces of the two activated carbon filter layers.
Furthermore, a plurality of groups of inner cleaning spray heads are distributed on the peripheral surface of the inner cleaning pipe in a linear array manner; the scrapers are distributed in a circular array by taking the center line of the treatment tank as an axis.
Further, a sealing ring is fixedly arranged at the rotary connection position of the filter element and the treatment tank.
The invention has the following beneficial effects:
according to the invention, through the design of the transmission motor and the filter element, the flocculation impurities remained after flocculation of the raw water with high algae content can be quickly separated, and through the rotary design of the inner cleaning spray head and the filter element, the filter element can quickly remove the impurities adhered to the surface of the filter element under the action of water flow and centrifugal force, so that the automation degree of the device is effectively improved, the device has a certain self-cleaning function, and meanwhile, through the design of the first flowmeter and the second flowmeter, the blockage degree of the filter element can be monitored in real time, and the service life of the device is effectively prolonged.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic sectional view of a water treatment apparatus for a high algae-containing ground;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic cross-sectional view of a filter element;
in the drawings, the components represented by the respective reference numerals are listed below:
1-a treatment tank, 2-a cavity, 3-a water inlet pipe, 4-a sewage discharge pipe, 5-a filter element, 6-a purified water outlet pipe, 7-an inner cleaning pipe, 8-an inner cleaning spray head, 9-a transmission motor, 10-a driven gear, 11-a connecting frame, 12-a scraper, 13-a first flowmeter, 14-a second flowmeter, 15-a control cabinet, 501-an activated carbon filter layer and 502-an ultrafiltration membrane filter layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention relates to a device for treating high algae-containing ground water, which comprises a treatment tank 1, wherein a cavity 2 is fixedly arranged inside the treatment tank 1; the upper part of the treatment tank 1 is communicated with a water inlet pipe 3; the lower part of the treatment tank 1 is communicated with a sewage discharge pipe 4; the inner wall of the cavity 2 is rotatably connected with a filter element 5 through a bearing; the bottom surface of the treatment tank 1 is rotatably connected with a purified water outlet pipe 6 through a bearing; the upper end of the purified water outlet pipe 6 is fixedly communicated with the filter element 5; an inner cleaning pipe 7 is fixedly arranged at the top of the treatment tank 1; the lower end of the inner cleaning pipe 7 penetrates through the filter element 5 and extends to the inside of the filter element 5; the peripheral side surface of the inner cleaning pipe 7 is rotationally connected with the filter element 5 through a bearing, a flange plate used for being connected with a cleaning pipeline is arranged at the top end of the inner cleaning pipe 7, and five groups of inner cleaning spray heads 8 are communicated with the peripheral side surface of the inner cleaning pipe 7; the bottom surface of the treatment tank 1 is fixedly connected with a transmission motor 9; the peripheral side surface of the purified water outlet pipe 6 is fixedly connected with a driven gear 10; one end of an output shaft of the transmission motor 9 is in transmission connection with the driven gear 10 through a gear;
the peripheral side surface of the filter element 5 is fixedly connected with a group of connecting frames 11; four scraping plates 12 are fixedly connected to the peripheral side surface of the connecting frame 11; one surface of each of the four scraping plates 12 is attached to the inner wall of the treatment tank 1.
Wherein, the peripheral side surface of the water inlet pipe 3 is provided with a first flowmeter 13; a second flowmeter 14 is arranged on the peripheral side surface of the purified water outlet pipe 6; the peripheral side surface of the treatment tank 1 is fixedly connected with a control cabinet 15; one end of a data output port of each of the first flowmeter 13 and the second flowmeter 14 is electrically connected with the control cabinet 15, a common type PLC controller is fixedly arranged inside the control cabinet 15, each of the first flowmeter 13 and the second flowmeter 14 is a TLDG type electromagnetic flowmeter, the first flowmeter 13 and the second flowmeter 14 transmit monitored signals to the controller in real time, the controller judges the blockage degree of the filter element 5 according to the difference value of the first flowmeter 13 and the second flowmeter 14, when the blockage degree is small, the difference value of the first flowmeter 13 and the second flowmeter 14 is small, and when the blockage condition inside the filter element 5 is large, the difference value of the first flowmeter 13 and the second flowmeter 14 is large.
Wherein, the valve is arranged on the peripheral side of the sewage draining pipe 4 and the purified water outlet pipe 6; the connecting frame 11 is a net structure.
As shown in fig. 3, the filter element 5 is a hollow cylindrical multilayer composite structure; the filter element 5 comprises two activated carbon filter layers 501; an ultrafiltration membrane filtering layer 502 is fixedly arranged between the opposite surfaces of the two activated carbon filtering layers 501.
Wherein, five groups of inner cleaning spray heads 8 are distributed on the peripheral surface of the inner cleaning pipe 7 in a linear array; four scrapers 12 are arranged in a circular array about the center line of the treatment tank 1.
Wherein, the filter element 5 is fixedly provided with a sealing ring at the rotary joint of the treatment tank 1.
One specific application of this embodiment is: the device mainly relates to the filtration process when high algae-laden bottom surface water is handled, wherein before handling, high algae-laden raw water still need carry out preliminary sedimentation, add medicine and reprecipitation process in proper order, and specific flow is: putting raw water with high algae content to be treated into a pre-settling tank, adding 0.5-2.0mg/L Cl into the pre-settling tank, stirring for 5-20min to obtain chlorinated raw water, inputting the chlorinated raw water into a water distribution well, adding 15-50mg/L polyferric chloride, stirring for 0.5-2min, inputting into a mixing well, sequentially adding 0.05-0.2mg/L coagulant aid and 0.1-0.3mg/L activated silicic acid into the mixing well, stirring for 12-18min, inputting into a flocculation tank, performing flocculation reaction for 3-8min, inputting into a sedimentation tank, performing static sedimentation for 25-35min, inputting supernatant into a treatment tank 1 through a water inlet pipe 3, wherein when the device works, a valve at a purified water outlet pipe 6 is opened and communicated with treatment equipment in the next step, and a filter element 5 runs at a set speed under the drive of a drive motor 9, meanwhile, the sewage discharge pipe 4 is closed, after supernatant liquid flows into the treatment tank 1, impurities are intercepted on the outer surface of the filter element 5, purified water is discharged through the purified water outlet pipe 6, when the device works, the first flow meter 13 and the second flow meter 14 monitor the water inlet flow and the water outlet flow in real time, when a controller monitors that the difference value between the first flow meter 13 and the second flow meter 14 reaches a set value, namely the filter element 5 is blocked, the related alarm device works, then the sewage cleaning operation is carried out, when the sewage cleaning is carried out, the water inlet pipe 3 continues to feed water, the purified water outlet pipe 6 is closed, the sewage discharge pipe 4 is opened, the inner cleaning pipe 7 works, water supplied by the inner cleaning pipe 7 flows to the surface of the filter element 5 through the inner cleaning spray head 8, and when the filter element 5 is cleaned, the filter element 5 is driven by the transmission motor 9 to run at a high speed, then impurities in the filter element 5 are thrown out through centrifugal force, and certain dehydration operation can be carried, simultaneously, the filter element 5 drives the scraper 12 to operate through the connecting frame 11 when rotating, the scraper 12 scrapes off impurities adhered to the inner wall of the treatment tank 1 through circular motion, and the cleaned sewage is discharged through the sewage discharge pipe 4.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (6)

1. The utility model provides a high algae-laden ground water treatment facilities, includes treatment tank (1), treatment tank (1) inside fixed cavity (2) of having seted up, its characterized in that:
the upper part of the treatment tank (1) is communicated with a water inlet pipe (3); the lower part of the treatment tank (1) is communicated with a sewage discharge pipe (4); the inner wall of the cavity (2) is rotatably connected with a filter element (5) through a bearing; the bottom surface of the treatment tank (1) is rotatably connected with a purified water outlet pipe (6) through a bearing; the upper end of the purified water outlet pipe (6) is fixedly communicated with the filter element (5); an inner cleaning pipe (7) is fixedly arranged at the top of the treatment tank (1); the lower end of the inner cleaning pipe (7) penetrates through the filter element (5) and extends to the inside of the filter element (5); the peripheral side surface of the inner cleaning pipe (7) is rotationally connected with the filter element (5) through a bearing; the peripheral side surface of the inner cleaning pipe (7) is communicated with a plurality of groups of inner cleaning spray heads (8); the bottom surface of the treatment tank (1) is fixedly connected with a transmission motor (9); the peripheral side surface of the purified water outlet pipe (6) is fixedly connected with a driven gear (10); one end of an output shaft of the transmission motor (9) is in transmission connection with the driven gear (10) through a gear;
the peripheral side surface of the filter element (5) is fixedly connected with a group of connecting frames (11); a plurality of scraping plates (12) are fixedly connected to the peripheral side surface of the connecting frame (11); one surface of each of the scraping plates (12) is attached to the inner wall of the treatment tank (1).
2. The device for treating the water in the high algae-containing ground as claimed in claim 1, wherein the peripheral side surface of the water inlet pipe (3) is provided with a first flowmeter (13); a second flowmeter (14) is arranged on the peripheral side surface of the purified water outlet pipe (6); the peripheral side surface of the treatment tank (1) is fixedly connected with a control cabinet (15); one end of the data output port of the first flowmeter (13) and one end of the data output port of the second flowmeter (14) are both electrically connected with the control cabinet (15).
3. The device for treating the ground water with high algae content according to claim 1, wherein valves are arranged on the peripheral side surfaces of the sewage discharge pipe (4) and the purified water outlet pipe (6); the connecting frame (11) is of a net structure.
4. The device for treating the ground water with high algae content according to claim 1, wherein the filter element (5) is a hollow cylindrical multilayer composite structure; the filter element (5) comprises two activated carbon filter layers (501);
an ultrafiltration membrane filter layer (502) is fixedly arranged between the opposite surfaces of the two activated carbon filter layers (501).
5. The device for treating the water in the high algae-containing ground as claimed in claim 1, wherein a plurality of groups of the inner cleaning nozzles (8) are distributed on the peripheral side surface of the inner cleaning pipe (7) in a linear array; the scrapers (12) are distributed in a circular array by taking the center line of the treatment tank (1) as an axis.
6. The device for treating the high algae content ground water according to claim 1, wherein a sealing ring is fixedly arranged at the rotary connection part of the filter element (5) and the treatment tank (1).
CN201911147555.8A 2019-11-21 2019-11-21 High algae-containing ground water treatment facilities Pending CN110723841A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911147555.8A CN110723841A (en) 2019-11-21 2019-11-21 High algae-containing ground water treatment facilities

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Application Number Priority Date Filing Date Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111228874A (en) * 2020-03-25 2020-06-05 深圳市怡盛源净水产业有限公司 Water purifier convenient to it is clean
CN112358130A (en) * 2020-11-03 2021-02-12 湖南衡标检测技术有限公司 Wastewater post-treatment device for wastewater detection and treatment method thereof
CN112624376A (en) * 2020-12-21 2021-04-09 安徽国星生物化学有限公司 Environment-friendly 4-cyanopyridine purification is with waste liquid secondary recovery processing device
CN115212646A (en) * 2022-09-20 2022-10-21 联仕(昆山)化学材料有限公司 Cleaning device for filter for hydrogen peroxide purification

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Publication number Priority date Publication date Assignee Title
US5348647A (en) * 1993-03-16 1994-09-20 Chen T H Water filter with back wash function
CN203852919U (en) * 2014-04-16 2014-10-01 武汉理工大学 Centrifugal type sewage purifying and separating device
CN108031158A (en) * 2017-12-21 2018-05-15 玉环县红日阀门有限公司 Purifier and its control method with leak-proof anti-explosive and automatic cleaning function
CN108261822A (en) * 2018-01-31 2018-07-10 海宁美康环保科技有限公司 Misplace the fore filter scraped

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5348647A (en) * 1993-03-16 1994-09-20 Chen T H Water filter with back wash function
CN203852919U (en) * 2014-04-16 2014-10-01 武汉理工大学 Centrifugal type sewage purifying and separating device
CN108031158A (en) * 2017-12-21 2018-05-15 玉环县红日阀门有限公司 Purifier and its control method with leak-proof anti-explosive and automatic cleaning function
CN108261822A (en) * 2018-01-31 2018-07-10 海宁美康环保科技有限公司 Misplace the fore filter scraped

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
刘玠主编: "《连铸及炉外精炼自动化技术》", 31 August 2006 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111228874A (en) * 2020-03-25 2020-06-05 深圳市怡盛源净水产业有限公司 Water purifier convenient to it is clean
CN112358130A (en) * 2020-11-03 2021-02-12 湖南衡标检测技术有限公司 Wastewater post-treatment device for wastewater detection and treatment method thereof
CN112624376A (en) * 2020-12-21 2021-04-09 安徽国星生物化学有限公司 Environment-friendly 4-cyanopyridine purification is with waste liquid secondary recovery processing device
CN112624376B (en) * 2020-12-21 2023-10-31 安徽国星生物化学有限公司 Environment-friendly waste liquid secondary recovery processing device for 4-cyanopyridine purification
CN115212646A (en) * 2022-09-20 2022-10-21 联仕(昆山)化学材料有限公司 Cleaning device for filter for hydrogen peroxide purification

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Application publication date: 20200124

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