WO2019166015A1 - Dispositif de purification - Google Patents

Dispositif de purification Download PDF

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Publication number
WO2019166015A1
WO2019166015A1 PCT/CN2019/076728 CN2019076728W WO2019166015A1 WO 2019166015 A1 WO2019166015 A1 WO 2019166015A1 CN 2019076728 W CN2019076728 W CN 2019076728W WO 2019166015 A1 WO2019166015 A1 WO 2019166015A1
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WO
WIPO (PCT)
Prior art keywords
solvent
control switch
pipe
pipeline
tank
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.)
Ceased
Application number
PCT/CN2019/076728
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English (en)
Chinese (zh)
Inventor
劳国康
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Patino Pro Ltd
Original Assignee
Patino Pro Ltd
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
Priority claimed from HK18103079.8A external-priority patent/HK1242913A2/xx
Application filed by Patino Pro Ltd filed Critical Patino Pro Ltd
Publication of WO2019166015A1 publication Critical patent/WO2019166015A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/39—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with hollow discs side by side on, or around, one or more tubes, e.g. of the leaf type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/02—Treatment of water, waste water, or sewage by heating
    • C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Definitions

  • the present application relates to the field of solvent purification technology, and in particular to a purification device.
  • waste solvent purification equipment can purify these waste solvents for recycling and recycling.
  • these conventional waste solvent purification devices are inconvenient to use, have a complicated structure, and are costly.
  • the embodiment of the present application provides a purification device that is convenient to use and simple in structure.
  • Providing a purification device comprising:
  • a purifying mechanism comprising a purifying tank, a condenser, a separator, a condensing duct and a separating pipe, wherein the condenser communicates with the purifying tank through the condensing pipe, and the separator passes through the separating pipe and the condenser Connected
  • a filter assembly comprising a filter and a conduit, the filter being in communication with the purge tank through the conduit, the filter for filtering dirt in the waste solvent;
  • the control assembly includes a conduction tube and a control switch
  • the conduction tube includes a first pipeline, a second pipeline, and a third pipeline
  • the second pipeline and the third pipeline are both a pipeline is in communication
  • the second pipeline is in communication with the filter
  • the third pipeline is in communication with the purification tank
  • the control switch is used to control the second pipeline and the The third pipe is turned on and off.
  • control switch includes a first control switch and a second control switch
  • first control switch is disposed on the second pipeline for controlling the opening and closing of the second pipeline.
  • second control switch is disposed on the third pipeline for controlling on and off of the third pipeline.
  • a solvent pump and a delivery tube are further included, one end of the delivery tube is in communication with the first pipeline, the solvent pump is disposed on the delivery tube, and the solvent pump can externally
  • the waste solvent is sequentially delivered to the purification tank or the filter through the delivery pipe and the conduction pipe.
  • the method further includes a solvent tank, a first connecting pipe, a second connecting pipe, and a third control switch, wherein the two ends of the first connecting pipe are respectively connected to the water inlet end of the solvent pump and the solvent tank Connected to each other, the two ends of the second connecting pipe are respectively connected to the water outlet end of the solvent pump and the solvent tank, and the first connecting pipe and the second connecting pipe are respectively provided with the first Three control switches.
  • a balance tube is also included, the balance tube being in communication with the solvent tank.
  • a recovery assembly comprising a cleaning tank for containing a cleaning solvent, and a recovery tube, the two ends of the recovery tube being respectively associated with the separator and the The cleaning box is connected.
  • the recycling assembly further includes a third connecting pipe and a fourth control switch, wherein two ends of the third connecting pipe are respectively connected to the water inlet end of the solvent pump and the cleaning box,
  • the fourth control switch is disposed on the third connecting pipe, and the fourth control switch is configured to control the opening and closing of the third connecting pipe.
  • the recycling assembly further includes a fourth connecting pipe and a fifth control switch, wherein two ends of the fourth connecting pipe are respectively connected to the water inlet end of the solvent pump and the cleaning box,
  • the fifth control switch is disposed on the fourth connecting pipe, and the fifth control switch is configured to control the opening and closing of the fourth connecting pipe.
  • the first conduit is connected to a sidewall of the delivery tube, and when the solvent pump extracts the waste solvent from an external container, the two ends of the delivery tube are respectively It is in communication with the two output tubes of the container.
  • the two ends of the conveying pipe are respectively an inlet end and an outlet end, and the inlet end and the outlet end are each provided with a valve.
  • the second pipeline when there is dirt in the waste solvent, the second pipeline is turned on by the control switch, the third pipeline is closed, and the external waste solvent enters the filter through the conduit, and the filter filters the dirt. Drop, then the waste solvent enters the purification tank.
  • the purifying tank can heat the waste solvent to vaporize the water and the solvent in the waste solvent to form a mixed gas, and the mixed gas enters the condenser to be condensed and liquefied, and then flows into the separator to separate the water and the clean solvent.
  • the second pipeline When there is no dirt in the waste solvent, the second pipeline is closed by the control switch, and the third pipeline is turned on, and the external waste solvent directly enters the purification tank through the conduction pipe, and the purification mechanism repeats the above process to purify the waste solvent.
  • the above purification device can select different purification processes according to the specific conditions of the waste solvent, is convenient to use, has simple structure, low cost, and can be widely applied.
  • FIG. 1 is a schematic structural view of a purification device according to an embodiment of the present application.
  • FIG 2 is a piping connection diagram of the purification device shown in Figure 1;
  • FIG. 3 is a schematic structural view of a purifying mechanism of the purifying device shown in FIG. 1;
  • Figure 4 is a schematic view showing the structure of the separator of the purification mechanism shown in Figure 3;
  • Figure 5 is a schematic structural view of a filter of the purification device shown in Figure 1;
  • Fig. 6 is a schematic view showing the structure of a conduction pipe of the purification apparatus shown in Fig. 1.
  • a purification device 10 is provided for cleaning a waste solvent, particularly for purifying dirty oil, according to an embodiment of the present application.
  • the purification device 10 includes a purification mechanism 100, a filter assembly 200, and a control assembly 300.
  • the purification mechanism 100 is used to purify the waste solvent
  • the filter assembly 200 is used to filter the dirt in the waste solvent.
  • the control component 300 is configured to filter the waste solvent through the filter assembly 200 according to the specific conditions of the waste solvent, and then enter the purification mechanism 100 for purification, or directly discharge the waste solvent into the purification mechanism 100 for purification.
  • the purification mechanism 100 includes a purification tank 110, a condenser 120, a condensation tube 130, a separator 140, and a separation tube 150.
  • the purge tank 110 is used to heat the waste solvent to vaporize the water and the solvent to form a mixed gas.
  • the mixed gas enters the condenser 120, and impurities in the waste solvent remain in the purge tank 110.
  • the top of the clean box 110 is provided with a first connecting end 112 and a second connecting end 114.
  • the first connecting end 112 and the second connecting end 114 are spaced apart, and the external waste solvent can pass through the first connecting end 112 or
  • the second connection end 114 enters the purge tank 110.
  • the bottom of the purification tank 110 is provided with a discharge valve 116 for discharging waste solvent in the purification tank 110 or impurities remaining after purification.
  • the outer wall of the purification tank 110 is provided with an expansion tank 118 to ensure the stability of the waste solvent capacity in the purification tank 110.
  • the condenser 120 communicates with the purge tank 110 through the condensing pipe 130, and the mixed gas can enter the condenser 120 through the condensing pipe 130, and the mixed gas is liquefied in the condenser 120 to be liquefied into a mixed liquid of water and solvent.
  • the height of the condenser 120 from the ground is higher than the height of the purge tank 110 from the ground to facilitate mixing of the mixed gas into the condenser 120.
  • the separator 140 is in communication with the condenser 120 through the separation pipe 150, and the liquefied mixed liquid can flow into the separator 140 through the separation pipe 150.
  • the height of the separator 140 from the ground is less than the height of the condenser 120 and the ground so that the mixed liquid can flow into the separator 140 under the action of gravity.
  • the top of the separator 140 is provided with a purifying access end 141 and a drying access end 142. Separators of different states can enter the splitter 140 through different access terminals.
  • the separation tube 150 is in communication with the purification access end 141.
  • the separator 140 is a water-oil separator.
  • the oil-water separator separates the mixed liquid by a specific gravity method, and separates the water and the solvent.
  • the separated solvent is discharged through the oil outlet pipe 143 at the bottom of the separator 140, and the separated water passes through the bottom of the separator 140.
  • the water pipe 144 is discharged.
  • the bottom of the separator 140 is also provided with an evacuation tube 145 for evacuating objects within the separator 140.
  • the side wall of the separator 140 is provided with a vent pipe 146 for regulating the air pressure in the separator 140.
  • the side wall of the separator 140 is also provided with a viewing window 147 for viewing the inside of the separator 140.
  • the filter assembly 200 includes a filter 210 and a conduit 220 that communicates with the purge tank 110 via a conduit 220.
  • the filter 210 is used to filter dirt in the waste solvent.
  • the filter 210 is a centrifugal filter 210, and a plurality of filter discs are disposed in the centrifugal filter 210.
  • impurities such as dirt remain on the filter disc.
  • the filter 210 can filter the dirt in the waste solvent to ensure the cleanness of the waste solvent and avoid contamination of the purification tank 110.
  • the filter 210 is provided with a liquid inlet pipe 212 and a liquid outlet pipe 214.
  • the external waste solvent enters the filter 210 through the inlet pipe 212.
  • One end of the conduit 220 is in communication with the outlet tube 214, and the other end of the conduit 220 is coupled to the second connection end 114 to communicate the filter 210 with the purge tank 110.
  • a spring ball valve 222 is disposed on the conduit 220 to control the opening and closing of the conduit 220.
  • the filter assembly 200 further includes a discharge pipe 230 and a control valve 240.
  • the filter 210 is provided with a discharge port 216, and the discharge pipe 230 communicates with the discharge port 216, and the waste solvent in the filter 210 can be discharged through the discharge pipe 230.
  • the control valve 240 is disposed on the discharge pipe 230 for controlling the opening and closing of the discharge pipe 230. Specifically, the control valve 240 is a pneumatic gate valve.
  • the filter 210 must be filled with waste solvent prior to use.
  • the filter 210 is further provided with an exhaust port (not shown), and the exhaust port is opened at an upper portion of the filter 210.
  • the exhaust port has a waste solvent flowing out, it means that the filter 210 is full.
  • the overcurrent resistance of the filter disc is gradually increased due to the constant adhesion of the dirt, resulting in an increase in the pressure inside the filter 210.
  • the pressure within the filter 210 can be read by a pressure gauge on the filter 210, and the filter 210 needs to be cleaned when the pressure value reaches a threshold.
  • the control assembly 300 includes a conduit 310 and a control switch 320.
  • the conduit 310 includes a first conduit 312, a second conduit 314, and a third conduit 316.
  • One end of the second line 314 is in communication with the first line 312, and the other end of the second line 314 is in communication with the inlet tube 212 of the filter 210 such that the second line 314 is in communication with the filter 210.
  • One end of the third line 316 is in communication with the first line 312, and the other end of the third line 316 is in communication with the first connection end 112 of the purge tank 110, thereby connecting the third line 316 to the purge tank 110.
  • the conduction tube 310 further includes a fourth conduit 318. One end of the fourth conduit 318 is in communication with the first conduit 312, and the fourth conduit 318 is used to discharge waste solvent in the conduit 310.
  • the control switch 320 is used to control the on and off of the second line 314 and the third line 316.
  • the control switch 320 includes a first control switch 322 and a second control switch 324.
  • the first control switch 322 is disposed on the second line 314 for controlling the on and off of the second line 314.
  • the second control switch 324 is disposed on the third line 316 for controlling the on and off of the third line 316.
  • the first control switch 322 and the second control switch 324 are both pneumatic gate valves. After the external waste solvent enters the first line 312, it may enter the filter 210 through the second line 314 or enter the purge tank 110 through the third line 316.
  • the purification device 10 further includes a solvent pump 400 and a delivery tube 500.
  • the two ends of the conveying pipe 500 are an inlet end 510 and an outlet end 520, respectively, and the outlet end 520 of the conveying pipe 500 communicates with the first pipe 312.
  • the solvent pump 400 is disposed on the delivery tube 500.
  • the solvent pump 400 is used to provide power to allow external waste solvent to enter the delivery tube 500 through the inlet end 510 and then through the conduit 310 for delivery into the purge tank 110 or into the filter 210.
  • the first conduit 312 is connected to the sidewall of the outlet end 520 of the delivery tube 500 so that both ends of the delivery tube 500 can communicate with the two outlet tubes of the waste solvent container, so that the waste solvent can be extracted.
  • the pressure inside the container can be balanced.
  • Both ends of the conveying pipe 500 are provided with a nozzle 530, which can facilitate the connection of the conveying pipe with other structures.
  • the nozzle 530 is made of brass.
  • Both the inlet end 510 and the outlet end 520 are provided with a valve 540 to control the on and off ends of the delivery tube 500.
  • the valve 540 is a ball valve.
  • the purification device 10 further includes a solvent tank 610, a first connecting pipe 620, a second connecting pipe 630, and a third control switch 640.
  • the solvent tank 610 is used to contain waste solvent.
  • One end of the first connecting pipe 620 is in communication with the water inlet end of the solvent pump 400, and the other end of the first connecting pipe 620 is in communication with the solvent tank 610.
  • One end of the second connecting pipe 630 is in communication with the water outlet end of the solvent pump 400, and the other end of the second connecting pipe 630 is in communication with the solvent tank 610.
  • a third control switch 640 is disposed on the first connecting pipe 620 and the second connecting pipe 630.
  • the third control switch 640 on the first connecting pipe 620 is used to control the opening and closing of the first connecting pipe 620
  • the third control switch 640 on the second connecting pipe 630 is used for the opening and closing of the second connecting pipe 630.
  • the third control switch 640 is a pneumatic gate valve.
  • the purification device 10 further includes a balance tube 650 that communicates with the solvent tank 610.
  • a balance tube 650 that communicates with the solvent tank 610.
  • the solvent pump 400 delivers the external waste solvent into the solvent tank 610
  • the two output tubes of the waste solvent container are respectively connected to the inlet end 510 and the balance tube 650, so that the container can be balanced when the waste solvent in the container is extracted.
  • the balance tube 650 can balance the pressure within the solvent tank 610.
  • the purification device 10 further includes a recovery assembly including a cleaning tank 710 and a recovery tube 720.
  • the cleaning tank 710 is for containing clean solvent
  • one end of the recovery tube 720 is in communication with the separator 140
  • the other end of the recovery tube 720 is in communication with the cleaning tank 710.
  • one end of the recovery pipe 720 is in communication with the oil discharge pipe 143 at the bottom of the separator 140.
  • the cleaning tank 710 and the solvent tank 610 are separated by a partition through a partition, and the upper portion of the partition has a gap with the inner wall of the casing, so that the balance pipe 650 can balance the cleaning tank 710 and the solvent tank 610. Air pressure.
  • the recycling assembly further includes a third connecting pipe 730 and a fourth control switch 740.
  • One end of the third connecting pipe 730 is in communication with the water inlet end of the solvent pump 400, and the other end of the third connecting pipe 730 is in communication with the cleaning tank 710.
  • the fourth control switch 740 is disposed on the third connecting pipe 730, and the fourth control switch 740 is used to control the opening and closing of the third connecting pipe 730.
  • the fourth control switch 740 is a pneumatic gate valve.
  • the recycling assembly further includes a fourth connecting tube 750 and a fifth control switch 760.
  • One end of the fourth connecting pipe 750 is in communication with the water outlet end of the solvent pump 400, and the other end of the fourth connecting pipe 750 is in communication with the cleaning tank 710.
  • the fifth control switch 760 is disposed on the fourth connecting tube 750.
  • the fifth control switch 760 is for controlling the on and off of the fourth connecting pipe 750.
  • the fourth control switch 740 is a pneumatic gate valve.
  • the working process of the above purification device 10 is specifically as follows:
  • the discharge pipe 230 and the fourth pipe 318 are blocked by a plug, and the inlet end 510 of the delivery pipe 500 and the balance pipe 650 are respectively connected to the two output pipes of the waste solvent container.
  • the first control switch 322 and the second control switch 324 are closed, the third control switch 640 on the first connecting pipe 620 is closed, and the valve 540 of the outlet end 520 of the conveying pipe 500 is closed.
  • the third control switch 640 on the second connecting tube 630 is then opened to open the valve 540 of the inlet end 510.
  • the solvent pump 400 provides power to allow waste solvent in the outside container to enter the delivery tube 500 through the inlet end 510 and then into the solvent tank 610 through the second connection tube 630.
  • the inlet end 510 and the balance tube 650 are disconnected from the output tube of the container.
  • the solvent pump 400 provides power to cause the waste solvent in the solvent tank 610 to sequentially pass through the first connecting pipe 620, the conveying pipe 500, and the conducting pipe 310, and enter the purification tank 110 or the filter 210.
  • the first control switch 322 When there is dirt in the waste solvent, the first control switch 322 is opened at this time, the second control switch 324 is closed, and the solvent pump 400 delivers the waste solvent into the filter 210.
  • the filter 210 filters the dirt in the waste solvent to ensure the cleanness of the waste solvent, and the filtered waste solvent enters the purification tank 110.
  • the first control switch 322 is closed at this time, the second control switch 324 is opened, and the waste solvent directly enters the purification tank 110.
  • the purge tank 110 may heat the waste solvent to vaporize water and solvent in the waste solvent to form a mixed gas.
  • the mixed gas enters the condenser 120 through the condenser 130, and the mixed gas is liquefied in the condenser 120 to be liquefied into a mixed liquid of water and solvent.
  • the mixed liquid formed by the liquefaction can flow into the separator 140 through the separation pipe 150, the separator 140 separates the mixed liquid, separates the water and the solvent, and the separated solvent enters the cleaning tank 710 through the recovery pipe 720, and the separated water passes.
  • the outlet pipe 144 at the bottom of the separator 140 is discharged into the external container.
  • the solvent pump 400 provides power to discharge clean solvent within the cleaning tank 710 through the third connecting tube 730 and the outlet end 520 of the delivery tube 500.
  • the cleaning tank 710 can be used to contain the waste solvent just after the purification device 10 starts operating. Specifically, when the inlet end 510 of the delivery pipe 500 and the balance pipe 650 are respectively connected to the two output pipes of the waste solvent container, the first control switch 322 and the second control switch 324 are closed, and the two third control switches are closed. The 640 is closed and the valve 540 at the outlet end 520 of the delivery tube 500 is closed. The fourth control switch 740 is then closed and the fifth control switch 760 is opened.
  • the solvent pump 400 provides power to allow waste solvent within the container to enter the delivery tube 500 through the inlet end 510 and then into the cleaning tank 710 through the fourth connection tube 750. After the cleaning tank 710 is filled with an appropriate amount of waste solvent, the waste solvent is then transferred into the solvent tank 610.
  • the above purification device 10 can select different purification processes according to the specific conditions of the waste solvent, and does not need to use other equipment to assist the purification, and is convenient and simple to use. Moreover, the purification device 10 has a simple structure and a low cost, and can be widely applied.

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  • Chemical & Material Sciences (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)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

Un dispositif de purification (10), comprenant un mécanisme de purification (100), un ensemble filtre (200) et un ensemble de commande (300), le mécanisme de purification (100) comprenant un réservoir de purification (110), un condenseur (120), un tube de condenseur (130), un séparateur (140) et un tube de séparation (150); le condenseur (120) est en communication avec le réservoir de purification (110) au moyen du tube de condenseur (130), et le séparateur (140) est en communication avec le condenseur (120) au moyen du tube de séparation (150); l'ensemble filtre (200) comprend un filtre (210) et un conduit (220), et le filtre (210) est en communication avec le réservoir de purification (110) au moyen du conduit (220); l'ensemble de commande (300) comprend un tuyau de renversement (310) et un commutateur de commande (320); le tuyau de renversement (310) comprend un premier pipeline (312), un second pipeline (314) et un troisième pipeline (316), le deuxième pipeline (314) et le troisième pipeline (316) étant en communication avec le premier pipeline (312), le deuxième pipeline (314) étant en communication avec le filtre (210), et le troisième pipeline (316) étant en communication avec le réservoir de purification (110). Le commutateur de commande (320) est utilisé pour commander le second pipeline (314) et le troisième pipeline (316) pour allumer ou éteindre.
PCT/CN2019/076728 2018-03-02 2019-03-01 Dispositif de purification Ceased WO2019166015A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HK18103079.8A HK1242913A2 (en) 2018-03-02 Purification device
HK18103079.8 2018-03-02

Publications (1)

Publication Number Publication Date
WO2019166015A1 true WO2019166015A1 (fr) 2019-09-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/076728 Ceased WO2019166015A1 (fr) 2018-03-02 2019-03-01 Dispositif de purification

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CN (2) CN210030292U (fr)
WO (1) WO2019166015A1 (fr)

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