CN111135752A - Device for continuously producing urea solution for low biuret vehicle - Google Patents
Device for continuously producing urea solution for low biuret vehicle Download PDFInfo
- Publication number
- CN111135752A CN111135752A CN201911289965.6A CN201911289965A CN111135752A CN 111135752 A CN111135752 A CN 111135752A CN 201911289965 A CN201911289965 A CN 201911289965A CN 111135752 A CN111135752 A CN 111135752A
- Authority
- CN
- China
- Prior art keywords
- water
- tank
- water pump
- fixedly connected
- pure water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms
- B01F27/906—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms with fixed axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/10—Maintenance of mixers
- B01F35/12—Maintenance of mixers using mechanical means
- B01F35/123—Maintenance of mixers using mechanical means using scrapers for cleaning mixers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
- B01F35/7171—Feed mechanisms characterised by the means for feeding the components to the mixer using boxes, closable containers, sacks or carts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
- B01F35/71805—Feed mechanisms characterised by the means for feeding the components to the mixer using valves, gates, orifices or openings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/48—Mixing water in water-taps with other ingredients, e.g. air, detergents or disinfectants
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The invention discloses a device for continuously producing urea solution for a low biuret vehicle, which comprises a pure water tank and a mixing tank, wherein the mixing tank is positioned at the right side position of the pure water tank, the upper end of the pure water tank is provided with an injection port, the side wall of the pure water tank is fixedly connected with a water pump, the water outlet end of the water pump is connected with a water pipe, one end of the water pipe, which is far away from the water pump, is connected with a water inlet of the mixing tank, the side wall of the mixing tank is fixedly connected with an electricity-receiving box, and an electricity-receiving cavity is arranged inside the electricity-. The device has reasonable structural design, can realize the effect of upward moving under the action of buoyancy by the floating plate when the water level of the pure water reaches a preset position, achieves the purpose of power failure, ensures the accuracy of the proportion of the pure water, is convenient for mixing and stirring treatment, can fully mix and stir the pure water and the urea crystals, avoids the condition that the urea crystals are precipitated, effectively improves the effect of mixing and stirring, and improves the production quality of the urea solution.
Description
Technical Field
The invention relates to the technical field of automobile urea solution production devices, in particular to a device for continuously producing a low-biuret automobile urea solution.
Background
The vehicle urea is a necessary product for heavy-duty diesel vehicles to reach the national emission standard of four. The automobile urea is urea aqueous solution with the concentration of 32.5 percent and the solvent of ultrapure water, and the raw materials are special raw materials for the automobile urea and the ultrapure water.
In the prior art, the automobile-used urea solution generally adopts the mode of artifical ratio to work at the in-process that the ratio mixes, and the manual work is difficult to master the accuracy of material ratio, can only rely on the sensation to judge, just so can influence the concentration of urea solution, adopts artificial mode also to increase staff's the amount of labour simultaneously.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a device for continuously producing urea solution for a low biuret vehicle, which can realize the effect of upward moving under the action of buoyancy of a floating plate when the water level of pure water reaches a preset position, achieves the purpose of power failure, ensures the accuracy of the proportion of the pure water, is convenient for mixing and stirring treatment, can fully mix and stir the pure water and urea crystals, avoids the condition that the urea crystals precipitate, effectively improves the effect of mixing and stirring, and improves the production quality of the urea solution.
In order to achieve the purpose, the invention adopts the following technical scheme:
a device for continuously producing urea solution for a low biuret vehicle comprises a pure water tank and a mixing tank, wherein the mixing tank is positioned at the right side of the pure water tank, the upper end of the pure water tank is provided with an injection opening, the side wall of the pure water tank is fixedly connected with a water pump, the water outlet end of the water pump is connected with a water delivery pipe, one end of the water delivery pipe, which is far away from the water pump, is connected with the water inlet of the mixing tank, the side wall of the mixing tank is fixedly connected with an electricity receiving box, an electricity receiving cavity is arranged in the electricity receiving box, the interior of the electricity connecting cavity is provided with an electricity connecting mechanism for communicating the water pump, the interior of the mixing tank is provided with an automatic power-off mechanism for the water pump, the upside fixedly connected with feeder hopper of blending tank, be provided with the feed inlet between feeder hopper and the blending tank, the inside of blending tank is provided with the mixed rabbling mechanism that is used for pure water and material to mix.
Preferably, the water pipe is connected with the water inlet of the mixing tank through a connecting flange, and the water pipe is fixedly connected with the pure water tank through a pipe clamp.
Preferably, connect the mechanism including fixed connection connect the last conducting rod that connects the intracavity top position, be provided with the water pump power cord on the water pump, electric connection between water pump power cord and the water pump, the one end that the water pump was kept away from to the water pump power cord extends to the inside of connecing the electricity chamber and connects the conducting rod, go up conducting rod and water pump power cord electric connection.
Preferably, the automatic power-off mechanism includes a slide cylinder which is arranged in the power receiving cavity and can move up and down, a lower conductive rod is fixedly connected to the inside of the slide cylinder, an insulating layer is arranged between the lower conductive rod and the slide cylinder, the lower end of the lower conductive rod is connected with a power line, one end, far away from the lower conductive rod, of the power line extends to the outside of the power receiving cavity, a strip-shaped opening is formed in the side wall of the power receiving box, a pull plate is fixedly connected to the side wall of the slide cylinder, one side, far away from the slide cylinder, of the pull plate penetrates through the strip-shaped opening and extends to the outside of the power receiving cavity, a lifting lug is fixedly connected to the upper side of the pull plate, a pulling rope is wound on the lifting lug, one end, far away from the lifting lug, of the pulling rope penetrates through the upper side of the mixing tank and.
Preferably, mix rabbling mechanism includes fixed connection at the driving motor of blending tank downside, driving motor's output shaft end extends to the inside and the fixedly connected with (mixing) shaft of blending tank, the upper end of (mixing) shaft is rotated and is connected the interior top at the blending tank, the outside equidistant of (mixing) shaft is provided with a plurality of stirring leaves, the outside of (mixing) shaft is provided with the bottom stirring leaf that is used for the blending tank bottom.
Preferably, the upper side of the mixing tank is provided with a through hole for the passage of a pulling rope.
The invention has the following beneficial effects:
1. the mixing mechanism can fully mix and stir the pure water and the urea crystals, can avoid the precipitation of the urea crystals, effectively improves the mixing and stirring effect and improves the production quality of the urea solution;
2. through the setting from taking outage mechanism and connecing the electric mechanism, accessible kickboard realized the effect that shifts up in the effect of buoyancy when the water level of pure water reaches preset position to let the condition that the separation appears in lower conducting rod and last conducting rod, reached the purpose of outage, thereby can improve the accuracy of pure water proportion, the convenient mixed stirring is handled.
Drawings
FIG. 1 is a schematic sectional view showing the structure of an apparatus for continuously producing a urea solution for a low biuret vehicle according to the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
fig. 3 is a schematic front view of an apparatus for continuously producing a urea solution for a low biuret vehicle according to the present invention.
In the figure: the device comprises an injection port 1, a pure water tank 2, a water delivery pipe 3, a pipe clamp 4, a water pump 5, a water pump power line 6, a pull rope 7, a first guide wheel 8, a second guide wheel 9, a strip-shaped opening 10, a pull plate 11, a feed hopper 12, a guide plate 13, a floating plate 14, a stirring shaft 15, a stirring blade 16, a stirring blade at the bottom 17, a mixing tank 18, a driving motor 19, a lower conductive rod 20, a power connection box 21, an upper conductive rod 22, a power connection cavity 23, an insulating layer 24, a sliding cylinder 25, a lifting lug 26 and a power line 27.
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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1 to 3, an apparatus for continuously producing a urea solution for a low biuret vehicle, includes a pure water tank 2 and a mixing tank 18, its characterized in that, blending tank 18 is located the right side position of pure water jar 2, the upper end of pure water jar 2 is provided with filling opening 1, the lateral wall fixedly connected with water pump 5 of pure water jar 2, the play water end of water pump 5 is connected with raceway 3, the one end that raceway 3 kept away from water pump 5 is connected with the water inlet of blending tank 18, the lateral wall fixedly connected with of blending tank 18 connects box 21, the inside that connects box 21 is provided with connects electric cavity 23, the inside that connects electric cavity 23 is provided with the mechanism that connects that is used for communicateing water pump 5, the inside of blending tank 18 is provided with the auto-power-off mechanism that is used for water pump 5, the upside fixedly connected with feeder hopper 12 of blending tank 18, be provided with the feed inlet between feeder hopper 12 and the blending tank 18, the inside of blending tank 18 is.
The water inlet of the water pipe 3 is connected with the water inlet of the mixing tank 18 through a connecting flange, and the water pipe 3 is fixedly connected with the pure water tank 2 through a pipe clamp 4.
Connect the mechanism and include fixed connection at the last conducting rod 22 that connects the interior top position of electricity chamber 23, be provided with water pump power cord 6 on the water pump 5, electric connection between water pump power cord 6 and the water pump 5, the one end that water pump power cord 6 kept away from water pump 5 extends to the inside that connects electricity chamber 23 and connects and go up conducting rod 22, goes up conducting rod 22 and 6 electric connection of water pump power cord, makes things convenient for 5 outage of water pump and circuit connection.
The automatic power-off mechanism comprises a sliding barrel 25 which is arranged in a power receiving cavity 23 and can move up and down, a lower conducting rod 20 is fixedly connected in the sliding barrel 25, an insulating layer 24 is arranged between the lower conducting rod 20 and the sliding barrel 25, the lower end of the lower conducting rod 20 is connected with a power cord 27, one end, far away from the lower conducting rod 20, of the power cord 27 extends to the outside of the power receiving cavity 23, a strip-shaped opening 10 is arranged on the side wall of the power receiving box 21, a pulling plate 11 is fixedly connected to the side wall of the sliding barrel 25, one side, far away from the sliding barrel 25, of the pulling plate 11 penetrates through the strip-shaped opening 10 and extends to the outside of the power receiving cavity 23, a lifting lug 26 is fixedly connected to the upper side of the pulling plate 11, a pulling rope 7 is wound on the lifting lug 26, one end, far away from the lifting lug 26, of the pulling rope 7 penetrates through the upper side of a mixing tank 18 and is fixedly connected with a floating plate, the floating plate 14 can move upwards under the action of the floating force, so that the lower conductive rod 20 and the upper conductive rod 22 are separated, and the purpose of power failure is achieved.
Mix rabbling mechanism and include fixed connection at the driving motor 19 of 18 downside of blending tank, driving motor 19's output shaft end extends to the inside and fixedly connected with (mixing) shaft 15 of blending tank 18, the upper end of (mixing) shaft 15 is rotated and is connected at the interior top of blending tank 18, the equidistant a plurality of stirring leaves 16 that are provided with in the outside of (mixing) shaft 15, the outside of (mixing) shaft 15 is provided with the bottom stirring leaf 17 that is used for stirring blending tank 18 bottom, this structure can be with the abundant mixed stirring of going on of pure water and urea crystal, can also avoid the condition that the urea crystal takes place to deposit simultaneously, improve the effect of mixing the.
During operation, the material ratio of pure water and urea crystals is determined, the length of the pull rope 7 is adjusted according to a determined value to change the water contact position of the floating plate 14, the water pump 5 is started under the condition that the upper conducting rod 22 and the lower guiding rod 20 are ensured to be connected in an abutting mode, pure water in the pure water tank 2 is pumped into the mixing tank 18 through the water conveying pipe 3, when the water level of the pure water in the mixing tank 18 reaches a preset position, the floating plate 14 is in contact with the water surface and bears buoyancy, the upward moving effect is achieved under the action of the buoyancy, at the moment, the pull plate 11 moves downwards through the pull rope 7, so that the lower conducting rod 20 and the upper conducting rod 22 are separated, the water pump 5 is powered off and loses power, then the measured urea crystals are put into the mixing tank 18 through the feed hopper 12, after the feeding is finished, the driving motor 19 is started, the output shaft of the driving motor 19 rotates to drive the stirring shaft 15 to rotate, the stirring blade 16 and the, stirring leaf 16 rotates and to mix the stirring processing with pure water and urea crystal, and bottom stirring leaf 17 is stirring the bottom of mixing box 18 simultaneously, avoids the condition that the urea crystal takes place to precipitate, improves the effect of mixing the stirring.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (6)
1. The device for continuously producing the urea solution for the low biuret vehicle comprises a pure water tank (2) and a mixing tank (18), and is characterized in that the mixing tank (18) is positioned at the right side of the pure water tank (2), an injection port (1) is arranged at the upper end of the pure water tank (2), a water pump (5) is fixedly connected to the side wall of the pure water tank (2), the water outlet end of the water pump (5) is connected with a water conveying pipe (3), one end, far away from the water pump (5), of the water conveying pipe (3) is connected with a water inlet of the mixing tank (18), an electricity receiving box (21) is fixedly connected to the side wall of the mixing tank (18), an electricity receiving cavity (23) is arranged inside the electricity receiving cavity (21), an electricity receiving mechanism for communicating the water pump (5) is arranged inside the electricity receiving cavity (23), an automatic power-off mechanism for the water pump (5) is arranged inside the mixing tank (18), the upside fixedly connected with feeder hopper (12) of blending tank (18), be provided with the feed inlet between feeder hopper (12) and blending tank (18), the inside of blending tank (18) is provided with the mixed rabbling mechanism that is used for pure water and material to mix.
2. The apparatus for continuously producing urea solution for low biuret cars according to claim 1, characterized in that the water pipe (3) and the water inlet of the mixing tank (18) are connected by a connecting flange, and the water pipe (3) is fixedly connected with the pure water tank (2) by a pipe clamp (4).
3. The apparatus for continuously producing urea solution for low biuret vehicle according to claim 2, characterized in that the electricity connection mechanism comprises an upper conductive rod (22) fixedly connected to the top position in the electricity connection chamber (23), the water pump (5) is provided with a water pump power line (6), the water pump power line (6) is electrically connected to the water pump (5), one end of the water pump power line (6) far away from the water pump (5) extends to the inside of the electricity connection chamber (23) and is connected to the upper conductive rod (22), and the upper conductive rod (22) is electrically connected to the water pump power line (6).
4. The device for continuously producing the urea solution for the low biuret vehicle according to claim 3, characterized in that the automatic power-off mechanism comprises a slide cylinder (25) which is arranged inside the power receiving cavity (23) and can move up and down, the slide cylinder (25) is fixedly connected with a lower conductive rod (20), an insulating layer (24) is arranged between the lower conductive rod (20) and the slide cylinder (25), the lower end of the lower conductive rod (20) is connected with a power cord (27), one end of the power cord (27) far away from the lower conductive rod (20) extends to the outside of the power receiving cavity (23), the side wall of the power receiving box (21) is provided with a strip-shaped opening (10), the side wall of the slide cylinder (25) is fixedly connected with a pulling plate (11), one side of the pulling plate (11) far away from the slide cylinder (25) penetrates through the strip-shaped opening (10) and extends to the outside of the power receiving cavity (23), the upside fixedly connected with lug (26) of arm-tie (11), around being equipped with stay cord (7) on lug (26), the upside and the fixedly connected with kickboard (14) of blending tank (18) are run through to the one end that lug (26) were kept away from in stay cord (7), the upside fixedly connected with of blending tank (18) is used for first guide pulley (8) and second guide pulley (9) of stay cord (7) direction.
5. The apparatus for continuously producing urea solution for low biuret vehicle according to claim 4, characterized in that the mixing and stirring mechanism comprises a driving motor (19) fixedly connected to the underside of the mixing tank (18), the end of the output shaft of the driving motor (19) extends to the inside of the mixing tank (18) and is fixedly connected with a stirring shaft (15), the upper end of the stirring shaft (15) is rotatably connected to the inner top of the mixing tank (18), a plurality of stirring blades (16) are arranged on the outer side of the stirring shaft (15) at equal intervals, and a bottom stirring blade (17) for stirring the bottom of the mixing tank (18) is arranged on the outer side of the stirring shaft (15).
6. The apparatus for continuously producing a urea solution for a biuret-reduced vehicle according to claim 5, characterized in that the upper side of the mixing tank (18) is provided with a through-hole for the pull rope (7) to pass through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911289965.6A CN111135752A (en) | 2019-12-16 | 2019-12-16 | Device for continuously producing urea solution for low biuret vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911289965.6A CN111135752A (en) | 2019-12-16 | 2019-12-16 | Device for continuously producing urea solution for low biuret vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111135752A true CN111135752A (en) | 2020-05-12 |
Family
ID=70518254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911289965.6A Pending CN111135752A (en) | 2019-12-16 | 2019-12-16 | Device for continuously producing urea solution for low biuret vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111135752A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06165927A (en) * | 1992-10-27 | 1994-06-14 | Nikkiso Co Ltd | Device for preparing solution and method for same |
| CN204816306U (en) * | 2015-06-02 | 2015-12-02 | 溢通环保科技（莆田）有限公司 | Automobile -used urea ration ratio mixing system device |
| CN206276241U (en) * | 2016-12-15 | 2017-06-27 | 青州百川水设备有限公司 | Automobile urea liquid process units |
| CN207734912U (en) * | 2017-12-28 | 2018-08-17 | 杭州创辉农业科技有限公司 | A kind of reading intelligent agriculture pestsides synthesis equipment |
| CN109224940A (en) * | 2018-09-17 | 2019-01-18 | 淮北惠源环保科技有限公司 | A kind of urea for vehicle solution agitating device |
-
2019
- 2019-12-16 CN CN201911289965.6A patent/CN111135752A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06165927A (en) * | 1992-10-27 | 1994-06-14 | Nikkiso Co Ltd | Device for preparing solution and method for same |
| CN204816306U (en) * | 2015-06-02 | 2015-12-02 | 溢通环保科技（莆田）有限公司 | Automobile -used urea ration ratio mixing system device |
| CN206276241U (en) * | 2016-12-15 | 2017-06-27 | 青州百川水设备有限公司 | Automobile urea liquid process units |
| CN207734912U (en) * | 2017-12-28 | 2018-08-17 | 杭州创辉农业科技有限公司 | A kind of reading intelligent agriculture pestsides synthesis equipment |
| CN109224940A (en) * | 2018-09-17 | 2019-01-18 | 淮北惠源环保科技有限公司 | A kind of urea for vehicle solution agitating device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212212373U (en) | A feeding device that is used for hybridization paper mulberry to feed grass carp | |
| CN211274503U (en) | High-efficient mixing arrangement of powder coating | |
| CN111410057A (en) | Battery production equipment with automatic feeding function | |
| CN111135752A (en) | Device for continuously producing urea solution for low biuret vehicle | |
| CN220194622U (en) | Uniform mixing device | |
| CN210559571U (en) | Flocculation device | |
| CN108479510B (en) | A kind of multi-functional intelligent stir mixing device | |
| CN216400075U (en) | Concrete processing is with mixing apparatus who possesses automatic feeding function | |
| CN110694514A (en) | Chemical pigment preparation treatment facility with additive filter screen mechanism | |
| CN112372828A (en) | A raw material mixing device for baked brick | |
| CN213440393U (en) | Production waterproof anti agitating unit for anti-crack mortar | |
| CN221267750U (en) | Raw material mixing tank for molybdenum oxide production | |
| CN220238352U (en) | Water-based adhesive reaction kettle | |
| CN218962462U (en) | Battery grade lithium fluoride batching cauldron | |
| CN212146960U (en) | Double-horizontal-shaft efficient stirring device for production of recycled concrete | |
| CN218339739U (en) | Automatic feeding device of reaction kettle | |
| CN221117675U (en) | Automatic feeding device of electrophoresis production line | |
| CN216778546U (en) | Special equipment for producing yellow phosphorus refining | |
| CN220376246U (en) | A loading attachment for producing anhydrous sodium sulfate | |
| CN214636324U (en) | Discharging device for epoxy production | |
| CN211636498U (en) | Stirred tank is used in production of wet membrane of sensitization | |
| CN216363416U (en) | Flour stirring device | |
| CN217535864U (en) | Fertile equipment of sewage system breeds | |
| CN213160729U (en) | Polycarboxylate water reducing agent production water line equipment | |
| CN213386382U (en) | Quantitative polydextrose feeding device |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200512 |
|
| WD01 | Invention patent application deemed withdrawn after publication |