CN111718051A - Full-automatic treatment device and process for powder coating wastewater - Google Patents

Full-automatic treatment device and process for powder coating wastewater Download PDF

Info

Publication number
CN111718051A
CN111718051A CN202010595862.9A CN202010595862A CN111718051A CN 111718051 A CN111718051 A CN 111718051A CN 202010595862 A CN202010595862 A CN 202010595862A CN 111718051 A CN111718051 A CN 111718051A
Authority
CN
China
Prior art keywords
waste water
sheet metal
treatment box
wastewater treatment
water treatment
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
CN202010595862.9A
Other languages
Chinese (zh)
Inventor
徐晓栋
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.)
Zhangjiagang Jinfan Cabinet Co ltd
Original Assignee
Zhangjiagang Jinfan Cabinet Co 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
Application filed by Zhangjiagang Jinfan Cabinet Co ltd filed Critical Zhangjiagang Jinfan Cabinet Co ltd
Priority to CN202010595862.9A priority Critical patent/CN111718051A/en
Publication of CN111718051A publication Critical patent/CN111718051A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • C02F1/02Treatment of water, waste water, or sewage by heating
    • C02F1/04Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/20Heavy metals or heavy metal compounds
    • 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
    • C02F2103/16Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00Controlling or monitoring parameters in water treatment
    • C02F2209/06Controlling or monitoring parameters in water treatment pH
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/04Disinfection

Abstract

The invention discloses a full-automatic powder coating wastewater treatment device and a process thereof, and the full-automatic powder coating wastewater treatment device comprises a sheet metal wastewater treatment box, wherein a wastewater feed port penetrates through the middle of the top end of the sheet metal wastewater treatment box, a medicament feed port penetrates through the outer side of the top end of the sheet metal wastewater treatment box, a driving motor is installed above one side of the sheet metal wastewater treatment box, the tail end of the sheet metal wastewater treatment box is communicated with a discharge pipe, the edge of the inner wall of the discharge pipe is provided with a clamp groove, and a heating wire is installed below the inner wall of the sheet metal wastewater treatment box. This powder full-automatic processing apparatus of application waste water and technology thereof can convenient to use person accelerate the speed that mixes with calcium chloride, coagulant and flocculating agent low and sodium hydroxide low speed to the inside panel beating waste water of panel beating waste water treatment case simultaneously through the stirring rod, plays the effect of acid-base neutralization to panel beating waste water, does also to adsorb the inside metallics of panel beating waste water, carries out the evaporation disinfection through heating wire to the waste water after mixing simultaneously.

Description

Full-automatic treatment device and process for powder coating wastewater
Technical Field
The invention relates to the technical field related to sheet metal production wastewater treatment, in particular to a full-automatic treatment device and a full-automatic treatment process for powder coating wastewater.
Background
The sheet metal is a comprehensive cold processing technology aiming at sheet metal, comprising shearing, punching, cutting, compounding, folding, welding, riveting, splicing, forming and the like, and is characterized in that the thickness of the same part is consistent, certain waste water can be generated in the production process of the sheet metal, one part of the waste water is recycled under the condition of low water quality requirement of workshop water, the water requirement is high, the waste water is recycled through evaporation, and the medicament mainly removes heavy metals and adjusts the PH value, so that the powder coating waste water full-automatic treatment device and the process thereof are required.
However, in the modern full-automatic treatment device and process for powder coating wastewater, wastewater and medicaments are in normal reaction, so that the reaction time between the wastewater and the medicaments is long, and the wastewater treatment rate is slow.
Disclosure of Invention
The invention aims to provide a full-automatic powder coating wastewater treatment device and a process thereof, and aims to solve the problems that in the modern full-automatic powder coating wastewater treatment device and the process thereof proposed in the background art, the wastewater and the medicament are in normal reaction, so that the reaction time between the wastewater and the medicament is longer, and the wastewater treatment speed is slower.
In order to achieve the purpose, the invention provides the following technical scheme: a full-automatic powder coating wastewater treatment device and a process thereof comprise a sheet metal wastewater treatment box, wherein a wastewater feed inlet penetrates through the middle part of the top end of the sheet metal wastewater treatment box, a medicament feed inlet penetrates through the outer side of the top end of the sheet metal wastewater treatment box, a driving motor is installed above one side of the sheet metal wastewater treatment box, a rotary table is connected with an output shaft of the driving motor, a threaded connecting rod is welded at the top end of the rotary table, a rotary rod is installed inside the threaded connecting rod, a stirring rod is welded on the outer wall of the rotary rod, a fixed sleeve is welded on the inner wall of the sheet metal wastewater treatment box, the top end of the rotary rod is embedded into the fixed sleeve, a water outlet pipe is communicated below one side of the sheet metal wastewater treatment box, a dustproof head is arranged inside the water outlet pipe, the tail end of the sheet metal wastewater treatment box is communicated with a discharge, the inner wall welding machine of putty pole has expanding spring, and the outer wall welding of putty pole has the clamp piece, the clamp groove has been seted up at the inner wall edge of discharging pipe, the heater strip is installed to the inner wall below of panel beating waste water treatment case.
Preferably, the full-automatic treatment device and the process for the powder coating wastewater comprise the following process steps:
a. waste water in the sheet metal production process is injected into the sheet metal waste water treatment box through a waste water feed inlet, calcium chloride is injected into the sheet metal waste water treatment box through a medicament feed inlet on one side of the sheet metal waste water treatment box, and then a coagulant and a flocculant are sequentially injected into the sheet metal waste water treatment box through a medicament feed inlet on the other side of the sheet metal waste water treatment box, wherein the medicament feed inlets are symmetrically arranged at the top end of the sheet metal waste water treatment box, 0.1-0.2kg of calcium chloride is added into each liner of waste water, 0.1-0.2kg of coagulant is added into each liner of waste water, and 3-4mgl of flocculant is added into each liner of waste water.
b. Open driving motor's switch, driving motor rotational speed sets up to 300r/min, and the carousel all drives threaded connection pole, bull stick and stirring rod rotation through the pivot this moment to driving motor lasts 5 minutes rotatoryly, makes panel beating waste water and calcium chloride, coagulant and the low popular misce bene of flocculating agent of panel beating waste water treatment incasement portion, and wherein the outer wall of bull stick is the screw thread form setting, and the stirring rod is equidistant setting at the outer wall of bull stick simultaneously.
c. After the driving motor works for five minutes, a power switch of the driving motor is closed, so that the metal plate wastewater after the mixing in the metal plate wastewater treatment box is precipitated with calcium chloride, a coagulant and a flocculant for minutes, then sodium hydroxide is injected into the metal plate wastewater treatment box through a medicament feed port, then the metal plate wastewater is mixed with the calcium chloride, the coagulant and the flocculant and the sodium hydroxide in a low way according to the step b, and the mixture is stood for 60 minutes, at the moment, the PH value in the metal plate wastewater treatment box can be detected to be 10.5-11.2 through a PH instrument, then the heating wire is connected with a power supply, the power switch of the heating wire is opened, and at the moment, the inside of the metal plate wastewater treatment box is heated.
d. Injecting sulfuric acid into the sheet metal wastewater treatment box through a medicament feed port, detecting the pH value to be 8.5-9.0 through a pH instrument, adding 3-4mgl of flocculating agent into each liner of wastewater, uniformly mixing the wastewater by a stirring rod, and precipitating for 90 minutes.
e. After 90 minutes, the supernatant is basically colorless and transparent, the pH value is 7.5-8.6, and all indexes can be ensured to be qualified and can be discharged through a micro-filter.
Compared with the prior art, the invention has the beneficial effects that: the full-automatic powder coating wastewater treatment device and the process thereof have simple production process, the feed inlet is divided into a wastewater feed inlet and a medicament feed inlet, which can facilitate the classified injection of medicaments and waste materials by users, and a threaded split mode is adopted between a threaded connecting rod and a rotating rod, which can facilitate the disassembly and replacement of a stirring rod by users, and can also facilitate the cleaning of the stirring rod by users, meanwhile, the stirring rod can facilitate the users to accelerate the mixing rate of the sheet metal wastewater and calcium chloride, coagulant and flocculant and sodium hydroxide in a sheet metal wastewater treatment box, thereby playing the role of acid-base neutralization on the sheet metal wastewater, absorbing metal substances in the sheet metal wastewater, simultaneously evaporating and sterilizing the mixed wastewater through a heating wire, and discharging gas in the sheet metal wastewater treatment box through the wastewater feed inlet or the medicament feed inlet, and the precipitates and metal substances are discharged through the discharge pipe, so that the whole metal plate wastewater treatment process is extremely simple.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic view of the structure of the threaded connecting rod and the rotating rod of the present invention;
FIG. 3 is a schematic view of the structure of the invention with a tapping pipe and a stopper rod engaged with each other.
In the figure: 1. a sheet metal wastewater treatment tank; 2. a wastewater feed inlet; 3. a medicament feed port; 4. a drive motor; 5. a turntable; 6. a threaded connecting rod; 7. a rotating rod; 8. a stirring rod; 9. fixing a sleeve; 10. a water outlet pipe; 11. a dust-proof head; 12. a discharge pipe; 13. a blocking rod; 14. a tension spring; 15. a clamp block; 16. a clamp groove; 17. a heating wire.
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 provides a technical solution: a full-automatic powder coating wastewater treatment device and a process thereof comprise a sheet metal wastewater treatment box 1, wherein a wastewater feed port 2 penetrates through the middle of the top end of the sheet metal wastewater treatment box 1, a medicament feed port 3 penetrates through the outer side of the top end of the sheet metal wastewater treatment box 1, a driving motor 4 is installed above one side of the sheet metal wastewater treatment box 1, a rotary table 5 is connected with the output end shaft of the driving motor 4, a threaded connecting rod 6 is welded at the top end of the rotary table 5, a rotating rod 7 is installed inside the threaded connecting rod 6, a stirring rod 8 is welded on the outer wall of the rotating rod 7, a fixing sleeve 9 is welded on the inner wall of the sheet metal wastewater treatment box 1, the top end of the rotating rod 7 is embedded into the fixing sleeve 9, a water outlet pipe 10 is communicated below one side of the sheet metal wastewater treatment box 1, a dust head 11 is arranged inside the water outlet pipe 10, the tail end of the sheet metal wastewater treatment, the inner wall welding machine of the blocking rod 13 is provided with a telescopic spring 14, the outer wall of the blocking rod 13 is welded with a clamp block 15, the edge of the inner wall of the discharge pipe 12 is provided with a clamp groove 16, and a heating wire 17 is arranged below the inner wall of the sheet metal wastewater treatment box 1.
The full-automatic treatment device and the process for powder coating wastewater comprise the following process steps:
a. waste water in the sheet metal production process is injected into the inside of a sheet metal waste water treatment box 1 through a waste water inlet 2, calcium chloride is injected into the inside of the sheet metal waste water treatment box 1 through a medicament inlet 3 on one side of the sheet metal waste water treatment box 1, and a coagulant and a flocculant are sequentially injected into the inside of the sheet metal waste water treatment box 1 through the medicament inlet 3 on the other side of the sheet metal waste water treatment box 1, wherein the medicament inlets 3 are symmetrically arranged at the top end of the sheet metal waste water treatment box 1, 0.1-0.2kg of calcium chloride is added into each liner of waste water, 0.1-0.2kg of coagulant is added into each liner of waste water, and 3-4mgl of flocculant is added into each liner of waste water.
Components Calcium chloride Coagulant agent Flocculating agent
Ratio (%) 25 25 50
b. Open driving motor 4's switch, driving motor 4 rotational speed sets up to 300r/min, this moment carousel 5 all drives threaded connection pole 6 through the pivot, bull stick 7 and stirring rod 8 are rotatory, and driving motor 4 lasts 5 minutes rotatoryly, make the panel beating waste water and calcium chloride of panel beating waste water treatment case 1 inside, coagulant and flocculating agent popular misce bene, wherein the outer wall of bull stick 7 is the heliciform setting, stirring rod 8 is equidistant setting at the outer wall of bull stick 7 simultaneously.
c. After the driving motor 4 works for five minutes, a power switch of the driving motor 4 is turned off, so that the mixed metal plate wastewater in the metal plate wastewater treatment box 1 is precipitated with calcium chloride, a coagulant and a flocculant for 60 minutes, then sodium hydroxide is injected into the metal plate wastewater treatment box 1 through the medicament feed port 3, then the metal plate wastewater is mixed with the calcium chloride, the coagulant and the flocculant and the sodium hydroxide in a low way according to the step b, and the mixture is stood for 60 minutes, at the moment, the PH value in the metal plate wastewater treatment box 1 can be detected to be 10.5-11.2 through a PH instrument, then the heating wire 17 is connected with a power supply, the power switch of the heating wire 17 is turned on, and at the moment, the inside of the metal plate wastewater treatment box 1 is heated.
d. Sulfuric acid is injected into the sheet metal wastewater treatment box 1 through the agent feed port 3, the PH value is detected to be 8.5-9.0 through a PH instrument, 3-4mgl of flocculating agent is added into each liner of wastewater, and the wastewater is uniformly mixed through the stirring rod 8 and is precipitated for 90 minutes.
e. After 90 minutes, the supernatant is basically colorless and transparent, the pH value is 7.5-8.6, and all indexes can be ensured to be qualified and can be discharged through a micro-filter.
The full-automatic treatment device and the process for powder coating wastewater have simple production process, the production process is simple, the feed inlet is divided into the wastewater feed inlet and the medicament feed inlet, the classified injection of medicaments and waste materials by a user can be facilitated, the disassembly and the replacement of a stirring rod by the user can be facilitated by adopting a threaded disassembly mode between a threaded connecting rod and a rotating rod, the cleaning of the stirring rod by the user can be facilitated, meanwhile, the speed of mixing the metal plate wastewater in a metal plate wastewater treatment box with calcium chloride, a coagulant and a flocculant and sodium hydroxide at a low speed can be accelerated by the user through the stirring rod, the acid-base neutralization effect is realized on the metal plate wastewater, the adsorption of metal substances in the metal plate wastewater can be realized, and the mixed wastewater is evaporated and disinfected through a heating wire, the inside gaseous accessible waste water feed inlet of panel beating waste water treatment case or medicament feed inlet discharge this moment to discharge precipitate and metallics through the discharging pipe, whole panel beating waste water treatment process is extremely simple.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (2)

1. The utility model provides a full automatic processing apparatus of powder coating waste water and technology thereof, includes panel beating waste water treatment case (1), its characterized in that: the waste water treatment tank is characterized in that a waste water feed port (2) penetrates through the middle of the top end of the sheet metal waste water treatment tank (1), a medicament feed port (3) penetrates through the outer side of the top end of the sheet metal waste water treatment tank (1), a driving motor (4) is installed above one side of the sheet metal waste water treatment tank (1), a rotary table (5) is connected to an output end shaft of the driving motor (4), a threaded connecting rod (6) is welded at the top end of the rotary table (5), a rotary rod (7) is installed inside the threaded connecting rod (6), a stirring rod (8) is welded on the outer wall of the rotary rod (7), a fixed sleeve (9) is welded on the inner wall of the sheet metal waste water treatment tank (1), the top end of the rotary rod (7) is embedded into the fixed sleeve (9), a water outlet pipe (10) is communicated with the lower side of the sheet metal waste water treatment tank, the terminal intercommunication of panel beating waste water treatment case (1) has discharging pipe (12), and the inside of discharging pipe (12) is provided with stifled material pole (13), the inner wall welding machine of stifled material pole (13) has expanding spring (14), and the outer wall welding of stifled material pole (13) has clamp piece (15), clamp groove (16) have been seted up at the inner wall edge of discharging pipe (12), heater strip (17) are installed to the inner wall below of panel beating waste water treatment case (1).
2. The full-automatic powder coating wastewater treatment device and the process thereof according to claim 1, characterized in that: the full-automatic treatment device and the process for the powder coating wastewater comprise the following process steps:
a. waste water in the sheet metal production process is injected into the inside of a sheet metal waste water treatment box (1) through a waste water inlet (2), calcium chloride is injected into the inside of the sheet metal waste water treatment box (1) through a medicament inlet (3) on one side of the sheet metal waste water treatment box (1), a coagulant and a flocculant are sequentially injected into the inside of the sheet metal waste water treatment box (1) through the medicament inlet (3) on the other side of the sheet metal waste water treatment box (1), wherein the medicament inlets (3) are symmetrically arranged at the top end of the sheet metal waste water treatment box (1), meanwhile, the calcium chloride is added in an amount of 0.1-0.2kg according to each liner of waste water, the coagulant is added in an amount of 0.1-0.2kg according to each liner of waste water, and the flocculant is added in an amount of 3-4mgl according to.
b. Open driving motor's (4) switch, driving motor (4) rotational speed sets up to 300r/min, carousel (5) all drives threaded connection pole (6) through the pivot this moment, bull stick (7) and stirring rod (8) are rotatory, and driving motor (4) last 5 minutes rotatory, make inside panel beating waste water and calcium chloride of panel beating waste water treatment case (1), coagulant and flocculating agent popular misce bene, wherein the outer wall of bull stick (7) is the screw thread form setting, stirring rod (8) are equidistant setting at the outer wall of bull stick (7) simultaneously.
c. After the driving motor (4) works for five minutes, a power switch of the driving motor (4) is turned off, so that the metal plate wastewater after the mixing in the metal plate wastewater treatment box (1) is precipitated for 60 minutes with calcium chloride, a coagulant and a flocculant, then sodium hydroxide is injected into the metal plate wastewater treatment box (1) through the medicament feed port (3), then the metal plate wastewater is mixed with the calcium chloride, the coagulant and the flocculant and the sodium hydroxide according to the step b, and the mixture is stood for 60 minutes, the PH value in the metal plate wastewater treatment box (1) can be detected to be 10.5-11.2 through a PH instrument, then the heating wire (17) is connected with a power supply, then the power switch of the heating wire (17) is turned on, and at the moment, the inside of the metal plate wastewater treatment box (1) is heated.
d. Sulfuric acid is injected into the sheet metal wastewater treatment box (1) through the agent feed port (3), the PH value is detected to be 8.5-9.0 through a PH instrument, 3-4mgl of flocculating agent is added into each liner of wastewater, and the wastewater is uniformly mixed through the stirring rod (8) and is precipitated for 90 minutes.
e. After 90 minutes, the supernatant is basically colorless and transparent, the pH value is 7.5-8.6, and all indexes can be ensured to be qualified and can be discharged through a micro-filter.
CN202010595862.9A 2020-06-28 2020-06-28 Full-automatic treatment device and process for powder coating wastewater Pending CN111718051A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010595862.9A CN111718051A (en) 2020-06-28 2020-06-28 Full-automatic treatment device and process for powder coating wastewater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010595862.9A CN111718051A (en) 2020-06-28 2020-06-28 Full-automatic treatment device and process for powder coating wastewater

Publications (1)

Publication Number Publication Date
CN111718051A true CN111718051A (en) 2020-09-29

Family

ID=72569182

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010595862.9A Pending CN111718051A (en) 2020-06-28 2020-06-28 Full-automatic treatment device and process for powder coating wastewater

Country Status (1)

Country Link
CN (1) CN111718051A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101386455A (en) * 2008-10-30 2009-03-18 常州星海半导体器件有限公司 Method for treating waste water after workpiece tinplating
CN104961286A (en) * 2015-07-08 2015-10-07 张伟飞 Small-sized industrial wastewater primary treatment device
CN111039456A (en) * 2019-12-24 2020-04-21 福建省晋蓝环保科技有限公司 Efficient flocculation device for printing and dyeing sewage

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101386455A (en) * 2008-10-30 2009-03-18 常州星海半导体器件有限公司 Method for treating waste water after workpiece tinplating
CN104961286A (en) * 2015-07-08 2015-10-07 张伟飞 Small-sized industrial wastewater primary treatment device
CN111039456A (en) * 2019-12-24 2020-04-21 福建省晋蓝环保科技有限公司 Efficient flocculation device for printing and dyeing sewage

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
江喜春: "《肉羊养殖创业致富指导》", 30 June 2017 *

Similar Documents

Publication Publication Date Title
CN104961286A (en) Small-sized industrial wastewater primary treatment device
CN111718051A (en) Full-automatic treatment device and process for powder coating wastewater
CN208361908U (en) A kind of water treatment agent addition device
CN211471020U (en) Sewage treatment plant for building engineering
CN107857408A (en) PPCPs purifier and processing method in a kind of drinking water source
CN209442769U (en) A kind of system for reclaiming rainwater rainwater neutralization reaction pond
CN207792743U (en) A kind of cleanser delivery device for sewage disposal
CN208120891U (en) A kind of water pollution processing unit that purification medicament can be used sufficiently
CN206616045U (en) Liquid dispensing apparatus in industrial waste water treatment film filtration system
CN102679487B (en) Humidifier
CN213231859U (en) Additive-free sewage treatment device
CN212450696U (en) Water purifying agent feeding device for sewage treatment plant
CN211896424U (en) Sewage treatment equipment convenient to water cyclic utilization
CN214781276U (en) Chemical industry sulphuric acid production sewage purification device
CN214299764U (en) A20 sewage treatment device for improving denitrification efficiency of low-carbon-ratio municipal sewage
CN215667643U (en) Energy-efficient intelligent integrated sewage treatment device
CN213725446U (en) Vehicle engineering detects interior air purification device of car
CN215427862U (en) Waste gas treatment device in environment-friendly enameled wire processing production
CN201173325Y (en) Ozone disinfection water saving valve
CN211411775U (en) A medicament mixing stirring device for sewage treatment
CN215463598U (en) Water treatment medicament production proportioning device
CN207685293U (en) A kind of after-treatment device of biogas anaerobic fermentation liquid
CN213725851U (en) Novel stone material recycling water advanced treatment automatic reagent feeding device
CN210453721U (en) Quick fashioned EVA plastic uptake board production mould
CN216418882U (en) Environment-friendly desulphurization unit

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20200929