CN214714922U - NMP side-collecting refining device for ensuring recovery purity of various waste liquids - Google Patents

NMP side-collecting refining device for ensuring recovery purity of various waste liquids Download PDF

Info

Publication number
CN214714922U
CN214714922U CN202023070835.4U CN202023070835U CN214714922U CN 214714922 U CN214714922 U CN 214714922U CN 202023070835 U CN202023070835 U CN 202023070835U CN 214714922 U CN214714922 U CN 214714922U
Authority
CN
China
Prior art keywords
stirring
filtering
tooth
box
same structure
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.)
Active
Application number
CN202023070835.4U
Other languages
Chinese (zh)
Inventor
迪建东
郑晓舟
王红星
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.)
Tianjin Zhongfu Environmental Protection Technology Co ltd
Original Assignee
Tianjin Zhongfu Environmental Protection Technology 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 Tianjin Zhongfu Environmental Protection Technology Co ltd filed Critical Tianjin Zhongfu Environmental Protection Technology Co ltd
Priority to CN202023070835.4U priority Critical patent/CN214714922U/en
Application granted granted Critical
Publication of CN214714922U publication Critical patent/CN214714922U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

The utility model discloses a precision device is adopted to NMP side to multiple waste liquid assurance recovery purity, include: tooth dress rose box, tooth dress rose box installs in solid-liquid separation structure, stirring neutralization structure, filtration: the filtering structure comprises: the device comprises a plurality of L-shaped filtering and collecting pipes with the same structure, a plurality of stirring and filtering shafts with the same structure, a plurality of stirring blades with the same structure, a plurality of stirring gears with the same structure, a stirring chain, a stirring driver and a collecting box; the utility model relates to a NMP refines technical field, produces the centrifugal rotation rivers and carries out pH valve simultaneously and adjust and partial position separation with the mixed liquid in the tooth dress rose box through stirring neutralization structure, tentatively shunts the waste liquid through the solid-liquid separation structure, pushes away through the small-size solid-state material of filtration in with the sewage.

Description

NMP side-collecting refining device for ensuring recovery purity of various waste liquids
Technical Field
The utility model relates to a NMP refines technical field, specifically is a precision device is adopted to NMP side to multiple waste liquid assurance recovery purity.
Background
The chemical name of NMP is N-methyl pyrrolidone NMP, which is a high boiling point and environment-friendly excellent solvent and has the advantages of low viscosity, good chemical stability and thermal stability, high polarity, low volatility, unlimited miscibility with water and a plurality of organic solvents and the like. The market application field of the N-methyl pyrrolidone is mainly focused on industries such as lithium batteries, circuit boards, insulating materials, petrifaction, medicines, pesticides, cleaning, macromolecules and the like, so that the NMP is a more precious solvent.
At present, NMP is mainly prepared by producing a crude NMP product in an NMP reaction bed through GBL and monomethylamine, and the crude NMP product is dehydrated and then rectified to prepare a refined NMP product. In the process of reacting GBL with 40% monomethylamine aqueous solution, raw materials of the raw materials need to be additionally heated to ensure high-temperature and high-pressure reaction conditions, the main component of the distillation bottom slag generated in the distillation process is an organic mixture, and if the distillation bottom slag is transported outside according to hazardous wastes, labor and operation cost are increased, and storage of the distillation bottom slag in a factory is complex and tedious work, so that how to digest the distillation bottom slag in a factory by itself and the waste utilization becomes a problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides a precision device is adopted to NMP side to multiple waste liquid assurance recovery purity has solved current partial background technical problem.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: an NMP side-sampling refining apparatus that ensures recovery purity for a plurality of waste liquids, comprising: tooth dress rose box, tooth dress rose box installs in solid-liquid separation structure, stirring neutralization structure, filtration:
the filtering structure comprises: the device comprises a plurality of L-shaped filtering and collecting pipes with the same structure, a plurality of stirring and filtering shafts with the same structure, a plurality of stirring blades with the same structure, a plurality of stirring gears with the same structure, a stirring chain, a stirring driver and a collecting box;
the L-shaped filter collecting pipe is inserted in the L-shaped filter collecting pipe and the tooth-mounted filter box, the stirring filter shaft is movably inserted in the L-shaped filter collecting pipe and the tooth-mounted filter box through bearings, the stirring gears are installed on the stirring filter shaft respectively, the stirring blades are installed on the L-shaped filter collecting pipe and the tooth-mounted filter box respectively, the stirring driver is installed on the tooth-mounted filter box, the stirring chain is sleeved on the stirring gears and the stirring driver, and the collecting box is installed on the tooth-mounted filter box.
Preferably, the stirring neutralization structure is: the stirring device comprises a plurality of stirring shaft tubes with the same structure, a plurality of stirring neutralizing gears with the same structure, a stirring neutralizing chain, a stirring neutralizing driving machine, a plurality of neutralizing raw material tanks with the same structure, a stirring neutralizing chain, a plurality of liquid pumps with the same structure, a plurality of stirring shunt tubes with the same structure and a plurality of shunt valves with the same structure;
a plurality of stirring central siphon passes through bearing activity cartridge respectively on tooth dress rose box, install on tooth dress rose box with the driving machine in the stirring, a plurality of install respectively in a plurality of with the gear in the stirring on stirring central siphon and the stirring and the driving machine drive end, in the stirring with the chain suit in a plurality of on the stirring with the gear, a plurality of on the neutralizing raw material case installs on tooth dress rose box, a plurality of the drawing liquid pump install respectively in a plurality of on the neutralizing raw material case, a plurality of shunt valve installs respectively in a plurality of on the drawing liquid pump, a plurality of the stirring shunt tubes install respectively in a plurality of on the shunt valve, and a plurality of the stirring shunt tubes other end is connected respectively on tooth dress rose box.
Preferably, the solid-liquid separation structure comprises: the device comprises a filtering bracket, two pairs of windlasses with the same structure, two pairs of pulley blocks with the same structure, a filtering box, a filtering net, a drainage shaft and a drainage plate;
the filter support is installed on a tooth-mounted filter box, two pairs of the pulley blocks are installed on the filter support in parallel, the filter box is movably inserted into the tooth-mounted filter box, two pairs of the winches are installed on the filter support in parallel respectively, the winches are connected to the filter box through the two pairs of the pulley blocks respectively, a filter opening is formed in the bottom end of the filter box, the filter screen is installed in the filter opening, a flow discharging opening is formed in the filter box, the discharging shaft is movably installed on the flow discharging opening through a bearing, and the discharging plate is installed on the discharging shaft.
Preferably, a plurality of the L-shaped filtering and collecting pipes are arranged at an angle of 45 degrees with the tooth-mounted filtering box.
Preferably, an activated carbon layer is arranged in the filter screen.
Preferably, a plurality of ultrasonic vibration transmission pipes with the same structure are arranged in the tooth-mounted filter box.
Advantageous effects
The utility model provides a precision device is adopted to NMP side to multiple waste liquid assurance recovery purity. The method has the following beneficial effects: this refined device is adopted to NMP side to multiple waste liquid assurance recovery purity, through stirring neutralization structure with the tooth mixed liquid production centrifugation rotation rivers in the rose box carry out pH valve regulation and partial position separation simultaneously, carry out preliminary reposition of redundant personnel to the waste liquid through the solid-liquid separation structure, push away through the small-size solid state material of filtration in with the sewage.
Drawings
Figure 1 is a side view cross-sectional schematic diagram of refining plant is adopted to NMP side of purity is retrieved to multiple waste liquid assurance.
Figure 2 is a main view cross-sectional schematic diagram of refining plant is adopted to NMP side of guaranteeing to retrieve purity to multiple waste liquid.
Figure 3 is the utility model discloses a guarantee to retrieve filtration schematic diagram of refining plant is adopted to NMP side of purity to multiple waste liquid.
In the figure: 1-installing a filter box in a tooth shape; 2-L type filtering and collecting pipe; 3-stirring and filtering the shaft; 4-stirring blade; 5-stirring gear; 6-stirring chains; 7-stirring a driving machine; 8, a collecting box; 9-stirring shaft tube; 10-stirring and neutralizing gears; 11-stirring a neutralization chain; 12-a stirring neutralizing driver; 13-neutralization of the feed tank; 14-a liquid pump; 15-stirring shunt tube; 16-a diverter valve; 17-a filter holder; 18-a winch; 19-a pulley block; 20-a filter box; 21-a filter screen; 22-drainage axis; 23-Drain plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
All the electrical components in the present application are connected with the power supply adapted to the electrical components through a wire, and an appropriate controller and an appropriate encoder should be selected according to actual conditions to meet control requirements, and specific connection and control sequences should be obtained.
Example (b): according to the attached drawings 1-3, the tooth-mounted filter box 1 is arranged on a solid-liquid separation structure, a stirring neutralization structure and a filtering structure: the filtering structure comprises: the device comprises a plurality of L-shaped filtering and collecting pipes 2 with the same structure, a plurality of stirring and filtering shafts 3 with the same structure, a plurality of stirring blades 4 with the same structure, a plurality of stirring gears 5 with the same structure, a stirring chain 6, a stirring driving machine 7 and a collecting box 8; the L-shaped filter collecting pipes 2 are inserted into the tooth-mounted filter boxes 1, the stirring filter shafts 3 are movably inserted into the L-shaped filter collecting pipes 2 and the tooth-mounted filter boxes 1 through bearings, the stirring gears 5 are respectively installed on the stirring filter shafts 3, the stirring blades 4 are respectively installed on the L-shaped filter collecting pipes 2 and the tooth-mounted filter boxes 1, the stirring driver 7 is installed on the tooth-mounted filter boxes 1, the stirring chains 6 are sleeved on the stirring gears 5 and the stirring driver 7, and the collecting box 8 is installed on the tooth-mounted filter boxes 1; the stirring neutralization structure is as follows: a plurality of stirring shaft tubes 9 with the same structure, a plurality of stirring neutralizing gears 10 with the same structure, a stirring neutralizing chain 11, a stirring neutralizing driving machine 12, a plurality of neutralizing raw material tanks 13 with the same structure, a plurality of liquid pumps 14 with the same structure, a plurality of stirring shunt tubes 15 with the same structure and a plurality of shunt valves 16 with the same structure; the stirring shaft tubes 9 are movably inserted into the toothed filter box 1 through bearings respectively, the stirring neutralization driving machine 12 is installed on the toothed filter box 1, the stirring neutralization gears 10 are installed on the stirring shaft tubes 9 and the driving ends of the stirring neutralization driving machine 12 respectively, the stirring neutralization chains 11 are sleeved on the stirring neutralization gears 10, the neutralization raw material boxes are installed on the toothed filter box 1, the liquid pumps 14 are installed on the neutralization raw material boxes respectively, the shunt valves 16 are installed on the liquid pumps 14 respectively, the stirring shunt tubes 15 are installed on the shunt valves 16 respectively, and the other ends of the stirring shunt tubes 15 are connected to the toothed filter box 1 respectively; the solid-liquid separation structure comprises: the device comprises a filtering bracket 17, two pairs of windlasses 18 with the same structure, two pairs of pulley blocks 19 with the same structure, a filtering box 20, a filtering net 21, a drainage shaft 22 and a drainage plate 23; the filtering support 17 is mounted on the tooth-mounted filtering box 1, two pairs of the pulley blocks 19 are mounted on the filtering support 17 in parallel, the filtering box 20 is movably inserted into the tooth-mounted filtering box 1, two pairs of the winches 18 are respectively mounted on the filtering support 17 in parallel, the two pairs of the winches 18 are respectively connected to the filtering box 20 through the two pairs of the pulley blocks 19, a filtering port is formed in the bottom end of the filtering box 20, the filtering net 21 is mounted in the filtering port, a flow discharging port is formed in the filtering box 20, the drainage shaft 22 is movably mounted at the flow discharging port through a bearing, and the drainage plate 23 is mounted on the drainage shaft 22; the angle between the L-shaped filter collecting pipes 2 and the tooth-mounted filter box 1 is 45 degrees; an active carbon layer is arranged in the filter screen 21; a plurality of ultrasonic vibration transmission pipes with the same structure are arranged in the tooth-mounted filter box 1.
From the above, it follows: the waste liquid is poured into a plurality of L-shaped filtering and collecting pipes 2, the stirring and filtering shafts 3 on the driving end of the stirring and driving machine 7 are driven to rotate by the operation of the stirring and driving machine 7, the stirring gears 5 on the stirring and filtering shafts 3 are driven to rotate by the stirring and filtering shafts 3, the stirring chains 6 on the stirring and filtering shafts are driven to rotate by the stirring gears 5, the stirring gears 5 on the stirring and filtering shafts are driven to rotate respectively, the stirring blades 4 on the stirring and filtering shafts 3 are driven by the stirring gears 5, solid substances in the waste liquid are pushed into a collecting box 8 by the stirring blades 4, the stirring and neutralizing driving machine 12 operates to drive the stirring shaft pipe 9 on the driving end of the stirring and neutralizing driving machine 12 to rotate, the stirring and neutralizing gear 10 on the stirring shaft pipe 9 is driven to rotate by the stirring and neutralizing gear 10, and the stirring and neutralizing chain 11 on the stirring and neutralizing gear 10 is driven to rotate by the stirring and neutralizing gear 12, through stirring in and the chain 11 drives a plurality of stirring on it and gear 10 rotates, through a plurality of stirring in and gear 10 drive stirring central siphon 9 rotation on it respectively, simultaneously through the operation of drawing liquid pump 14, with in the raw material tank 13 neutralization solution pump-out to the reposition of redundant personnel valve 16 in, through stirring shunt tubes 15 with liquid reposition of redundant personnel to a plurality of stirring central siphon 9 in, through stirring in with the structure with tooth dress rose box 1 in produce rotatory rivers, rotate to in a plurality of L type filter collecting pipe 2 through the solid-state material of rotatory rivers in will mixing the liquid, through filtration with solid-state material propelling movement in collection box 8.
As a preferred aspect, further, the stirring neutralization structure: a plurality of stirring shaft tubes 9 with the same structure, a plurality of stirring neutralizing gears 10 with the same structure, a stirring neutralizing chain 11, a stirring neutralizing driving machine 12, a plurality of neutralizing raw material tanks 13 with the same structure, a plurality of liquid pumps 14 with the same structure, a plurality of stirring shunt tubes 15 with the same structure and a plurality of shunt valves 16 with the same structure;
a plurality of stirring central siphon 9 is respectively through bearing activity cartridge on tooth dress rose box 1, install on tooth dress rose box 1 with driving machine 12 in the stirring, a plurality of stirring neutralization gear 10 is installed in a plurality of respectively stirring central siphon 9 and stirring neutralization driving machine 12 drive serve, 11 suit in the stirring are in a plurality of on the neutralization gear 10, a plurality of the neutralization raw material case is installed on tooth dress rose box 1, a plurality of drawing liquid pump 14 is installed in a plurality of respectively on the neutralization raw material case, a plurality of shunt tubes 16 is installed in a plurality of respectively on drawing liquid pump 14, a plurality of stirring shunt tubes 15 is installed in a plurality of respectively on shunt tubes 16, and a plurality of the 15 other ends of stirring shunt tubes are connected respectively on tooth dress rose box 1.
Preferably, the solid-liquid separation structure further comprises: the device comprises a filtering bracket 17, two pairs of windlasses 18 with the same structure, two pairs of pulley blocks 19 with the same structure, a filtering box 20, a filtering net 21, a drainage shaft 22 and a drainage plate 23;
the filtering support 17 is arranged on the tooth-mounted filtering box 1, the two pairs of the pulley blocks 19 are arranged on the filtering support 17 in parallel, the filtering box 20 is movably inserted into the tooth-mounted filtering box 1, the two pairs of the windlasses 18 are respectively arranged on the filtering support 17 in parallel, the two pairs of the windlasses 18 are respectively connected onto the filtering box 20 through the two pairs of the pulley blocks 19, a filtering port is formed in the bottom end of the filtering box 20, the filtering net 21 is arranged in the filtering port, a flow discharging port is formed in the filtering box 20, the discharging shaft 22 is movably arranged on the flow discharging port through a bearing, and the discharging plate 23 is arranged on the discharging shaft 22.
Preferably, a plurality of the L-shaped filter collecting pipes 2 are arranged at an angle of 45 degrees with the tooth-mounted filter box 1.
Preferably, an activated carbon layer is disposed in the filter screen 21.
Preferably, a plurality of ultrasonic vibration transmission pipes with the same structure are arranged in the tooth-mounted filter box 1.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.
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 (6)

1. An NMP side-sampling refining apparatus that ensures recovery purity for a plurality of waste liquids, comprising: tooth dress rose box (1), its characterized in that, tooth dress rose box (1) is installed in solid-liquid separation structure, stirring neutralization structure, filtration:
the filtering structure comprises: the device comprises a plurality of L-shaped filtering and collecting pipes (2) with the same structure, a plurality of stirring and filtering shafts (3) with the same structure, a plurality of stirring blades (4) with the same structure, a plurality of stirring gears (5) with the same structure, a stirring chain (6), a stirring driving machine (7) and a collecting box (8);
the L-shaped filtering and collecting pipe (2) is inserted in a plurality of the tooth-mounted filtering box (1), the stirring filtering shaft (3) is movably inserted in the plurality of the L-shaped filtering and collecting pipe (2) and the tooth-mounted filtering box (1) through a bearing, the stirring gears (5) are respectively installed on the stirring filtering shaft (3), the stirring blades (4) are respectively installed on the plurality of the L-shaped filtering and collecting pipe (2) and the tooth-mounted filtering box (1), the stirring driver (7) is installed on the tooth-mounted filtering box (1), the stirring chain (6) is sleeved on the plurality of the stirring gears (5) and the stirring driver (7), and the collecting box (8) is installed on the tooth-mounted filtering box (1).
2. An NMP side refining apparatus according to claim 1, wherein the stirring neutralization structure: the device comprises a plurality of stirring shaft tubes (9) with the same structure, a plurality of stirring neutralizing gears (10) with the same structure, a stirring neutralizing chain (11), a stirring neutralizing driving machine (12), a plurality of neutralizing raw material tanks (13) with the same structure, a plurality of liquid pumps (14) with the same structure, a plurality of stirring shunt tubes (15) with the same structure and a plurality of shunt valves (16) with the same structure;
a plurality of stirring shaft tubes (9) are respectively and movably inserted on the tooth-mounted filter box (1) through bearings, the stirring neutralization driving machine (12) is arranged on the tooth-mounted filter box (1), a plurality of stirring neutralization gears (10) are respectively arranged on a plurality of stirring shaft tubes (9) and the driving end of the stirring neutralization driving machine (12), the stirring neutralizing chain (11) is sleeved on a plurality of stirring neutralizing gears (10), a plurality of neutralizing raw material tanks are arranged on the tooth-mounted filter tank (1), a plurality of liquid pumps (14) are respectively arranged on a plurality of neutralizing raw material tanks, a plurality of shunt valves (16) are respectively arranged on a plurality of liquid pumps (14), a plurality of stirring shunt tubes (15) are respectively arranged on a plurality of shunt valves (16), and the other ends of the plurality of stirring shunt tubes (15) are respectively connected to the tooth-mounted filter box (1).
3. An NMP side refining apparatus according to claim 1, wherein the solid-liquid separation structure comprises: the device comprises a filtering bracket (17), two pairs of windlasses (18) with the same structure, two pairs of pulley blocks (19) with the same structure, a filtering box (20), a filtering screen (21), a drainage shaft (22) and a drainage plate (23);
the filter box is characterized in that the filter support (17) is arranged on the tooth-mounted filter box (1), the pulley blocks (19) are arranged on the filter support (17) in a pairwise parallel mode, the filter box (20) is movably inserted into the tooth-mounted filter box (1), the winches (18) are arranged on the filter support (17) in a pairwise parallel mode, the winches (18) are connected onto the filter box (20) through the pulley blocks (19) in a pairwise mode, the filter openings are formed in the bottom end of the filter box (20), the filter screen (21) is arranged in the filter openings, the filter box (20) is provided with a flow discharging opening, the drainage shaft (22) is movably arranged on the flow discharging opening through a bearing, and the drainage plate (23) is arranged on the drainage shaft (22).
4. The NMP side refining device for ensuring recovery purity of multiple waste liquids according to claim 1, wherein a plurality of the L-shaped filtering and collecting pipes (2) are at 45 degrees to the tooth-mounted filter box (1).
5. The NMP side refining apparatus ensuring recovery purity for a plurality of waste liquids according to claim 3, wherein an activated carbon layer is provided in the filter screen (21).
6. The NMP side refining device for ensuring recovery purity of multiple waste liquids according to claim 1, characterized in that a plurality of ultrasonic vibration transmission pipes with the same structure are arranged in the tooth-mounted filter box (1).
CN202023070835.4U 2020-12-18 2020-12-18 NMP side-collecting refining device for ensuring recovery purity of various waste liquids Active CN214714922U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202023070835.4U CN214714922U (en) 2020-12-18 2020-12-18 NMP side-collecting refining device for ensuring recovery purity of various waste liquids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202023070835.4U CN214714922U (en) 2020-12-18 2020-12-18 NMP side-collecting refining device for ensuring recovery purity of various waste liquids

Publications (1)

Publication Number Publication Date
CN214714922U true CN214714922U (en) 2021-11-16

Family

ID=78632590

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202023070835.4U Active CN214714922U (en) 2020-12-18 2020-12-18 NMP side-collecting refining device for ensuring recovery purity of various waste liquids

Country Status (1)

Country Link
CN (1) CN214714922U (en)

Similar Documents

Publication Publication Date Title
CN211133219U (en) Industrial sewage filtering device
CN108341519A (en) A kind of device for chemical engineering wastewater treatment
CN210974036U (en) High-phosphorus wastewater dephosphorization equipment
CN214714922U (en) NMP side-collecting refining device for ensuring recovery purity of various waste liquids
CN107758919A (en) Small-sized villages and small towns river sewage purifying processing device
CN220376457U (en) Wastewater treatment precipitation device
CN212450990U (en) Complete device for treating oil sludge waste liquid
CN213356981U (en) Water pushing device in sewage treatment tank
CN212440825U (en) Preparation machine for sewage treatment agent solution
CN212491848U (en) Chemical industry is with having waste water treatment equipment who prevents blockking up function
CN217051905U (en) Multidimensional electro-catalysis landfill leachate treatment system
CN213387898U (en) A advanced treatment unit for organophosphorus waste water
CN206008491U (en) A kind of membrane separation plant for bio-pharmaceuticals
CN105314774B (en) A kind of electroplating waste processing equipment
CN219751949U (en) Waste water purifying device
CN218491550U (en) Multilayer circuit board membrane sediment hydroextractor
CN218453970U (en) Processing apparatus is used in chemical industry waste water processing
CN220907236U (en) Sewage pretreatment device
CN214495986U (en) Workshop sewage discharge device for agricultural plastic plate production
CN210356332U (en) Chemical industry waste residue filter equipment
CN219136388U (en) Water-based building coating wastewater decolorization device
CN220460069U (en) Wastewater treatment device with anti-blocking structure
CN211311230U (en) Integrated treatment equipment for sewage
CN217868591U (en) Environment-friendly industrial sludge cleaning device
CN215712401U (en) Coal tar pitch-based porous carbon material chemical wastewater treatment device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant