CN211339508U - Little algae harvesting device on adjustable inclined plane - Google Patents
Little algae harvesting device on adjustable inclined plane Download PDFInfo
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- CN211339508U CN211339508U CN201922164341.3U CN201922164341U CN211339508U CN 211339508 U CN211339508 U CN 211339508U CN 201922164341 U CN201922164341 U CN 201922164341U CN 211339508 U CN211339508 U CN 211339508U
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Abstract
The utility model belongs to the technical field of little algae technique of gathering and specifically relates to a little algae harvesting device on adjustable inclined plane, including algae liquid output tube, filtration membrane, filter screen hole board, the support frame of gathering, inclined plane adjustment mechanism, algae mud collecting vat and algae liquid collecting pit gather, wherein a plurality of filter screen hole boards are the echelonment and locate on gathering the support frame, are equipped with filtration membrane on each filter screen hole board, and the highest filter screen hole board input upside is equipped with algae liquid output tube, and the minimum filter screen hole board output outside is equipped with algae mud collecting vat gather the support frame downside is equipped with algae liquid collecting pit, the input of filter screen hole board of gathering is articulated with the support frame, and be equipped with inclined plane adjustment mechanism between filter screen hole board and the support frame of gathering. The utility model discloses a filter screen pore board inclination can adjust according to the algae mud moisture content that little algae was gathered and the filtration dehydration condition, ensures little algae basic stability of gathering dehydration rate.
Description
Technical Field
The utility model belongs to the technical field of little algae technique of gathering and specifically relates to a little algae harvesting device on adjustable inclined plane.
Background
Microalgae are widely distributed in natural environment and are rich in protein, unsaturated fatty acid, vitamins, pigments and other high-value-added substances indispensable to animal growth and life, and with the large-scale cultivation development of microalgae, products such as specific high-value-added medicines, cosmetic raw materials, functional foods and the like can be obtained through a directional cultivation mode, which is also a representative direction of future biological manufacturing.
However, the microalgae is difficult to harvest and high in harvesting cost due to the tiny volume of the microalgae cells, which becomes one of the difficult problems restricting the development and large-scale popularization of the microalgae industry. In the prior art, the commonly used microalgae harvesting methods mainly include flocculation settling, filtering, centrifugal separation and other methods, wherein flocculation settling needs to be added with a flocculating agent, which causes the problems of difficult recovery of culture wastewater, high cost, large environmental protection pressure and the like, while centrifugal separation has high cost, requires a kinetic energy device rotating at high speed, has large harvesting energy consumption, and is mainly used for small-scale harvesting and analysis in a laboratory, so that filtering becomes a main effective measure for microalgae harvesting.
The small-scale filtering and harvesting method at home and abroad is completed through a manually controlled screen device, for example, spirulina is manufactured into unpowered screens such as a flat screen, a pocket screen or an inclined screen by adopting a soft filter screen with 300-380 meshes, and harvesting is realized through a single-stage inclined filter bed or a multi-stage inclined filter bed. In the harvesting system, algae liquid flows through the inclined filter bed like a waterfall, algae mud is accumulated on the surface of the filter membrane, culture solution and finer algae particles are separated out through the filter membrane, such membrane separation harvesting devices require sufficient ramp length to ensure adequate membrane filtration area and retention time of the harvested algal solution at the membrane surface, in addition, the hydraulic flushing on the surface of the membrane is also very important for cleaning the algae mud accumulation on the surface of the membrane so as to ensure smooth filtration, for example, a funnel-shaped fixed bed variable slope collecting device is disclosed in the Chinese utility model with patent number 201821536056.9 and name "a collecting device for microalgae cells", which realizes the adjustment of the collection inclined plane and the filtration membrane area according to the concentration and the flow rate change of the collected algae liquid, however, this configuration still falls into the category of fixed beds, i.e., once the harvesting bed is manufactured and installed, the slope of the filtration slope for microalgae harvesting is not adjustable.
The biggest advantage of fixed bed inclined plane recovery device is that the structure is simple relatively, nevertheless along with the continuation of the process of gathering and the jam of filtration pore, the particle size of little algae in addition changes, and the great change can appear in the algae mud moisture content of gathering of the inclined plane recovery device of the single inclination of fixed bed, and the condition of overdrying or diluting can appear in the algae mud, and overdrying or dilute algae mud causes the technological stability difficulty to little algae subsequent processing.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a little algae harvesting device on adjustable inclined plane, the filter screen pore board inclination can be adjusted according to the algae mud moisture content that little algae was gathered and the filtration dehydration condition, ensures little algae basic stability of gathering dehydration rate.
The purpose of the utility model is realized through the following technical scheme:
the utility model provides a little algae harvesting device on adjustable inclined plane, includes algae liquid output tube, filtration membrane, filter mesh board, the support frame of gathering, inclined plane adjustment mechanism, algae mud collecting vat and algae liquid collecting pit, and wherein a plurality of filter mesh boards are the echelonment and locate on gathering the support frame, are equipped with filtration membrane on each filter mesh board, and the highest filter mesh board input upside is equipped with algae liquid output tube, and the lowest filter mesh board output outside is equipped with algae mud collecting vat gather the support frame downside and be equipped with algae liquid collecting pit, filter mesh board's input is articulated with the support frame of gathering, and gather and be equipped with inclined plane adjustment mechanism between filter mesh board and the support frame.
The inclined plane adjustment mechanism comprises a first connecting rod, a second connecting rod and a traction piece, wherein one end of the first connecting rod is connected with the corresponding filter mesh plate in a sliding mode, the other end of the first connecting rod is hinged to the harvesting support frame, one end of the second connecting rod is hinged to the first connecting rod, and the other end of the second connecting rod is connected with the harvesting support frame in a sliding mode and passes through the traction piece to drive and move.
The first connecting rod and the second connecting rod form a herringbone structure, wherein the upper end of the second connecting rod is hinged with the middle part of the first connecting rod.
The first connecting rod and the second connecting rod form a triangular structure, wherein the upper end of the first connecting rod and the upper end of the second connecting rod are coaxially hinged, and the hinged shafts are in sliding connection with the corresponding filter mesh plates.
The first connecting rod and the second connecting rod form a cross structure, the middle parts of the first connecting rod and the second connecting rod are hinged through a middle hinge shaft, and the upper ends of the first connecting rod and the second connecting rod are both in sliding connection with corresponding filter mesh plates.
The traction piece is a traction rod, a guide groove is formed in the side edge of the harvesting support frame and is arranged in the guide groove, and a second lower hinge shaft is arranged at the lower end of the second connecting rod and is hinged with the traction rod in the corresponding side guide groove.
The harvesting support frame is provided with a driving device, the driving device comprises a hand wheel and a lead screw, the lead screw is driven to rotate through the hand wheel, and a nut matched with the lead screw is arranged on the traction rod.
The traction piece is a steel wire rope, a supporting beam sliding groove is formed in the side edge of the harvesting supporting frame, and a second lower hinge shaft is arranged at the lower end of the second connecting rod and penetrates through the corresponding supporting beam sliding groove to be fixedly connected with the steel wire rope.
The harvesting support frame is provided with a driving device, the driving device comprises a motor and a roller, the roller is driven to rotate by the motor, and the steel wire rope is wound on the roller.
The filter screen pore plate is characterized in that pore plate supporting plates used for supporting the plate body are arranged on two sides of the filter screen pore plate, pore plate sliding grooves are formed in the pore plate supporting plates, and first upper hinge shafts are arranged at the upper ends of the first connecting rods and are arranged in the pore plate sliding grooves corresponding to the filter screen pore plate.
The utility model discloses an advantage does with positive effect:
1. the utility model discloses be equipped with a plurality of filter screen boards that are the echelonment and arrange, and each filter screen board inclination all can adjust according to the algae mud moisture content that little algae was gathered and the filtration dehydration condition, ensures little algae basic stability of gathering dehydration rate.
2. The utility model discloses a filter screen pore board inclination can adopt artificial hand wheel control mode to realize the adjustment, also can adopt motor drive's automatically regulated mode to realize the adjustment, and chevron shape, triangle-shaped, crisscross isotructure can be selected as required to inclined plane adjustment mechanism in addition, and the design is nimble convenient, does benefit to popularization and application.
Drawings
Figure 1 is a schematic structural diagram of the present invention,
figure 2 is a schematic view of the recovery support structure of figure 1,
figure 3 is a schematic view of the drive arrangement of figure 1 when driven by a handwheel,
figure 4 is a schematic structural view of one embodiment of the bevel adjustment mechanism of figure 1,
figure 5 is a cross-sectional view of the bevel adjustment mechanism of figure 4,
figure 6 is a schematic structural view of another embodiment of the bevel adjustment mechanism of figure 1,
figure 7 is a cross-sectional view of the bevel adjustment mechanism of figure 6,
figure 8 is a schematic diagram of a further embodiment of the ramp adjustment stage mechanism of figure 1,
FIG. 9 is a schematic view of the bevel adjustment mechanism of the driving device in FIG. 1 driven by a motor cable,
fig. 10 is a schematic view of the steel cable inside the first support beam of fig. 9.
The algae collecting device comprises an algae liquid output pipe 1, a filtering membrane 2, a filtering mesh plate 3, a pore plate chute 31, a pore plate support plate 32, a collecting support frame 4, a supporting upright 41, a second supporting beam 42, a first supporting beam 43, a supporting beam chute 431, an inclined plane adjusting mechanism 5, a first connecting rod 51, a first lower hinge shaft 511, a first upper hinge shaft 512, a second connecting rod 52, a second lower hinge shaft 521, a second upper hinge shaft 522, a traction rod 53, a guide groove 54, a middle hinge shaft 55, a steel wire rope 56, algae mud 6, an algae liquid collecting tank 7, a driving device 8, a hand wheel 81 and a lead screw 82.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1-10, the utility model discloses an algae liquid output tube 1, filtration membrane 2, filter mesh board 3, the support frame 4 of gathering, inclined plane adjustment mechanism 5, algae mud collecting vat 6 and algae liquid collecting pit 7, wherein a plurality of filter mesh boards 3 are the echelonment and locate on the support frame 4 of gathering, are equipped with filtration membrane 2 on each filter mesh board 3, and the highest filter mesh board 3 input upside is equipped with algae liquid output tube 1, and the lowest filter mesh board 3 output outside is equipped with algae mud collecting vat 6 gather support frame 4 downside is equipped with algae liquid collecting pit 7, filter mesh board 3's input is articulated with the support frame 4 of gathering, filter mesh board 3 is close to output one side and is equipped with inclined plane adjustment mechanism 5 between the support frame 4 of gathering.
In this embodiment, be equipped with a plurality of liquid discharge holes on the algae liquid output tube 1 and be used for exporting algae liquid, filtration membrane 2 is the filter cloth of membrane pore 200 ~ 600 meshes, filtration mesh plate 3 is the porous flat board that has certain intensity, and filtration membrane 2 tiling is on filtration mesh plate 3, and filtration membrane 2 inclination changes along with the change of filtration mesh plate 3 inclination. As shown in fig. 2, the harvesting support frame 4 comprises a support column 41, a first support beam 43 and a second support beam 42, the large-span support further comprises a plurality of groups of inclined support beams, wherein the first support beam 43 is arranged along the flow direction of algae liquid according to a certain inclination, the second support beam 42 is perpendicular to the flow direction of algae liquid, the input end of each filter mesh plate 3 can be hinged on the corresponding second support beam 42, and the inclined plane adjusting mechanism 5 is arranged between the two sides of each filter mesh plate 3 and the first support beams 43 at the two sides of the harvesting support frame 4. The utility model discloses the during operation, algae liquid is by high to low through each filter screen hole board 3 in proper order after algae liquid output tube 1 exports, and the water that is less than 2 membrane apertures of filtration membrane and tiny particle algae see through filtration membrane 2 and fall into algae liquid collecting pit 7, are detained and become the less algae mud of water content after the algae liquid dehydration on filtration membrane 2 surface to being washed the downward flow and falling into algae mud collecting vat 6, 5 inclination accessible inclined plane adjustment mechanism 5 of each filter screen hole board are adjusted.
As shown in fig. 4 to 9, the bevel adjusting mechanism 5 includes a first connecting rod 51, a second connecting rod 52 and a traction member, wherein one end of the first connecting rod 51 is slidably connected to the corresponding filtering mesh plate 3, the other end is hinged to the harvesting support frame 4, the second connecting rod 52 is hinged to the first connecting rod 51, the lower end of the second connecting rod 52 is slidably connected to the harvesting support frame 4, and the lower end of the second connecting rod 52 is driven by the traction member to move. The first connecting rod 51 and the second connecting rod 52 can form a herringbone structure, a triangular structure or a cross structure, as shown in fig. 1, a driving device 8 for driving the traction piece is arranged on the recovery support frame 4, the traction piece can adopt a traction rod 53 or a steel wire rope 56, and the traction pieces in different forms are driven by the driving device 8 in different structures.
As shown in fig. 4 to 5, the first link 51 and the second link 52 may form a herringbone structure, and the lower end of the second link 52 may be driven to move by the traction rod 53, the side edge of the filter mesh plate 3 is provided with a mesh plate chute 31, the first supporting beam 43 at the side edge of the harvesting supporting frame 4 is provided with a guide groove 54, and a draw bar 53 is arranged in the guide groove 54, a first upper hinge shaft 512 is arranged at the upper end of the first connecting rod 51 and is arranged in the pore plate chute 31 corresponding to the filter mesh plate 3, and the first upper hinge shaft 512 slides along the orifice plate chute 31, the lower end of the first connecting rod 51 is provided with a first lower hinge shaft 511 hinged with the first supporting beam 43 at the corresponding side, the upper end of the second connecting rod 52 is provided with a second upper hinge 522 hinged with the middle part of the corresponding first connecting rod 51, the lower end of the second connecting rod 52 is provided with a second lower hinge shaft 521 hinged with the traction rod 53 in the corresponding side guide groove 54, and the second lower hinge shaft 521 is driven to move by the traction rod 53. In addition, the second lower hinge axis 521 is higher than the first lower hinge axis 511 due to the slope of the first support beam 43 at the side edge of the recovery support frame 4.
As shown in fig. 6 to 7, the first link 51 and the second link 52 may form a triangular structure, wherein a first lower hinge 511 is provided at a lower end of the first link 51 to be hinged to the first support beam 43 on the corresponding side, a second lower hinge 521 is provided at a lower end of the second link 52 to be hinged to the draw bar 53 in the corresponding side guide groove 54, the second lower hinge 521 is driven by the draw bar 53 to move, an upper end of the first link 51 is coaxially hinged to an upper end of the second link 52, and the hinge is disposed in the aperture plate slide groove 31 of the corresponding filter aperture plate 3 and slides along the aperture plate slide groove 31. The second lower hinge axis 521 is higher than the first lower hinge axis 511 due to the inclination of the first support beam 43 at the side edge of the recovery support 4.
As shown in fig. 8, the first link 51 and the second link 52 may form a cross structure, wherein a lower end of the first link 51 is provided with a first lower hinge 511 hinged to the first support beam 43 on the corresponding side, a lower end of the second link 52 is provided with a second lower hinge 521 hinged to the draw bar 53 in the corresponding side guide 54, the second lower hinge 521 is driven by the draw bar 53 to move, a middle portion of the first link 51 and a middle portion of the second link 52 are hinged by a middle hinge 55, and a first upper hinge 512 at an upper end of the first link 51 and a second upper hinge 522 at an upper end of the second link 52 are both disposed in the perforated plate slide slot 31 of the corresponding perforated plate 3 and slide along the perforated plate slide slot 31. The second lower hinge axis 521 is higher than the first lower hinge axis 511 due to the inclination of the first support beam 43 at the side edge of the recovery support 4.
When the traction member driving the second connecting rod 52 to move is the traction rod 53, as shown in fig. 3, the driving device 8 includes a hand wheel 81 and a lead screw 82, wherein an optical axis portion on one side of the lead screw 82 is supported and mounted on a bracket through a bearing to realize rotation, the bracket can be mounted on the harvesting support frame 4, the hand wheel 81 is arranged at an optical axis end of the lead screw 82, and a threaded section is arranged on the other side of the lead screw 82 and is matched with a nut arranged in the traction rod 53. In addition, as shown in fig. 5 and 7, the cross section of the traction rod 53 can be square or rectangular, and the guide groove 54 for accommodating the traction rod 53 is made of channel steel and the like matched with the cross section of the traction rod 53 and is welded on the first support beam 43 at the side edge of the harvesting support frame 4.
As shown in fig. 9 to 10, when the traction member driving the second connecting rod 52 of the bevel adjusting mechanism 5 to move is a steel wire rope 56, the driving device 8 includes a motor and a roller, the roller is driven by the motor to rotate, the steel wire ropes 56 are disposed on both sides of the harvesting support frame 4, and the steel wire ropes 56 are wound on the roller, the second lower hinge shaft 521 at the lower end of the second connecting rod 52 of each bevel adjusting mechanism 5 is fixedly connected with the steel wire rope 56 on the corresponding side, a supporting beam sliding groove 431 is disposed on the first supporting beam 43 on the side edge of the harvesting support frame 4, the second lower hinge shaft 521 passes through the supporting beam sliding groove 431 and then is connected with the corresponding steel wire rope 56, and the second lower hinge shaft 521 moves along the supporting beam sliding groove 431. When the motor-driven roller rotates to retract the steel wire rope 56, the steel wire rope 56 drives the lower end of the second connecting rod 52 to move and drive the filter mesh plate 3 to ascend, and when the motor-driven roller rotates reversely to release the steel wire rope 56, the filter mesh plate 3 automatically descends under the action of self gravity.
As shown in fig. 5 and 7, two sides of the filter screen plate 3 are provided with an orifice plate support plate 32 for supporting a plate body, the orifice plate support plate 32 may adopt a structure such as an angle steel or a channel steel, and the orifice plate chute 31 is provided on the corresponding orifice plate support plate 32.
The lower end of each second connecting rod 52 positioned on the same side of the harvesting support frame 4 can be driven to move by the same traction piece to realize the synchronous adjustment of each filter mesh plate 3, a plurality of driving devices 8 can also be arranged on the harvesting support frame 4, and the second connecting rod 52 in each inclined plane adjusting mechanism 5 is driven to move independently by the corresponding driving device 8, so that the independent adjustment of a single filter mesh plate 3 is realized.
The utility model discloses a theory of operation does:
the utility model discloses the during operation, algae liquid is by high to low through each filter screen hole board 3 in proper order after the output of algae liquid output tube 1, the water that is less than 2 membrane apertures of filtration membrane and tiny particle algae see through filtration membrane 2 and fall into algae liquid collecting pit 7, be detained and become the less algae mud of water content after the algae liquid dehydration on filtration membrane 2 surface, and washed the downward flow and fall into in algae mud collecting vat 6, 5 inclination accessible inclined plane adjustment mechanism 5 of each filter screen hole board are adjusted, wherein first connecting rod 51 one end in the inclined plane adjustment mechanism 5 and the 3 sliding connection of filter screen hole board that correspond, the other end articulates on gathering support frame 4, second connecting rod 52 is articulated with first connecting rod 51, and second connecting rod 52 lower extreme and 4 sliding connection of gathering support frame, and second connecting rod 52 lower extreme is through drawing a drive removal. The utility model discloses can select the structural style of first connecting rod 51 and second connecting rod 52 as required, chevron shape, triangle-shaped or crisscross structure can be constituteed to first connecting rod 51 and second connecting rod 52, also can select drive arrangement 8 and draw the piece as required in addition, drive arrangement 8 can adopt manual hand wheel 81 and lead screw nut structure, also can adopt automatic motor and cylinder structure, draw the piece and can adopt traction lever 53 or wire rope 56 drive second connecting rod 52 lower extreme to remove, the design is nimble convenient, does benefit to popularization and application.
Claims (10)
1. A little algae harvesting device of adjustable inclined plane which characterized in that: including algae liquid output tube (1), filtration membrane (2), filter mesh board (3), the support frame (4) of gathering, inclined plane adjustment mechanism (5), algae mud collecting vat (6) and algae liquid collecting pit (7), wherein a plurality of filter mesh boards (3) are the echelonment and locate on gathering support frame (4), be equipped with filtration membrane (2) on each filter mesh board (3), and the highest filter mesh board (3) input upside is equipped with algae liquid output tube (1), and the lowest filter mesh board (3) output outside is equipped with algae mud collecting vat (6) support frame (4) downside is equipped with algae liquid collecting pit (7), the input of filter mesh board (3) is articulated with support frame (4) of gathering, and be equipped with inclined plane adjustment mechanism (5) between filter mesh board (3) and the support frame (4) of gathering.
2. The adjustable slope microalgae harvesting device of claim 1, wherein: inclined plane adjustment mechanism (5) include first connecting rod (51), second connecting rod (52) and pull the piece, wherein first connecting rod (51) one end and the filter screen board (3) sliding connection who corresponds, the other end articulates on gathering support frame (4), and second connecting rod (52) one end is articulated with first connecting rod (51), and the other end with gather support frame (4) sliding connection and pass through pull a drive and remove.
3. The adjustable slope microalgae harvesting device of claim 2, wherein: the first connecting rod (51) and the second connecting rod (52) form a herringbone structure, wherein the upper end of the second connecting rod (52) is hinged with the middle part of the first connecting rod (51).
4. The adjustable slope microalgae harvesting device of claim 2, wherein: the first connecting rod (51) and the second connecting rod (52) form a triangular structure, wherein the upper end of the first connecting rod (51) is coaxially hinged with the upper end of the second connecting rod (52), and the hinged shaft is in sliding connection with the corresponding filter screen plate (3).
5. The adjustable slope microalgae harvesting device of claim 2, wherein: the filter screen plate comprises a first connecting rod (51) and a second connecting rod (52), wherein the first connecting rod (51) and the second connecting rod (52) form a cross structure, the middle parts of the first connecting rod (51) and the second connecting rod (52) are hinged through a middle hinge shaft (55), and the upper ends of the first connecting rod (51) and the second connecting rod (52) are connected with corresponding filter screen plates (3) in a sliding mode.
6. The adjustable slope microalgae harvesting device of claim 2, wherein: the drawing piece is a drawing rod (53), a guide groove (54) is formed in the side edge of the harvesting support frame (4), the drawing rod (53) is arranged in the guide groove (54), and a second lower hinge shaft (521) is arranged at the lower end of the second connecting rod (52) and hinged to the drawing rod (53) in the corresponding side guide groove (54).
7. The adjustable slope microalgae harvesting device of claim 6, wherein: be equipped with drive arrangement (8) on recovery support frame (4), drive arrangement (8) include hand wheel (81) and lead screw (82), just lead screw (82) are rotated through hand wheel (81) drive, be equipped with on traction lever (53) the nut with lead screw (82) cooperation.
8. The adjustable slope microalgae harvesting device of claim 2, wherein: the traction piece is a steel wire rope (56), a supporting beam sliding groove (431) is formed in the side edge of the harvesting support frame (4), and a second lower hinge shaft (521) is arranged at the lower end of the second connecting rod (52) and penetrates through the corresponding supporting beam sliding groove (431) to be fixedly connected with the steel wire rope (56).
9. The adjustable slope microalgae harvesting device of claim 8, wherein: be equipped with drive arrangement (8) on gathering support frame (4), drive arrangement (8) include motor and gyro wheel, the gyro wheel passes through motor drive rotatory, wire rope (56) twine in on the gyro wheel.
10. The adjustable slope microalgae harvesting device of claim 2, wherein: the filter screen pore plate is characterized in that pore plate supporting plates (32) used for supporting plate bodies are arranged on two sides of the filter screen pore plate (3), pore plate chutes (31) are formed in the pore plate supporting plates (32), and first upper hinge shafts (512) are arranged at the upper ends of the first connecting rods (51) and are arranged in the pore plate chutes (31) corresponding to the filter screen pore plate (3).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922164341.3U CN211339508U (en) | 2019-12-06 | 2019-12-06 | Little algae harvesting device on adjustable inclined plane |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922164341.3U CN211339508U (en) | 2019-12-06 | 2019-12-06 | Little algae harvesting device on adjustable inclined plane |
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| CN211339508U true CN211339508U (en) | 2020-08-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115365911A (en) * | 2022-08-31 | 2022-11-22 | 芜湖天航重工股份有限公司 | Pipe body polishing device capable of adjusting polishing aperture |
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2019
- 2019-12-06 CN CN201922164341.3U patent/CN211339508U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115365911A (en) * | 2022-08-31 | 2022-11-22 | 芜湖天航重工股份有限公司 | Pipe body polishing device capable of adjusting polishing aperture |
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Effective date of registration: 20210918 Address after: 266101 room 612, building 2, No. 3, Xinyuan Road, Laoshan District, Qingdao City, Shandong Province Patentee after: Qingdao Zhongke Lanzhi Biotechnology Development Co.,Ltd. Address before: 266101 Shandong Province, Qingdao city Laoshan District Songling Road No. 189 Patentee before: QINGDAO INSTITUTE OF BIOENERGY AND BIOPROCESS TECHNOLOGY, CHINESE ACADEMY OF SCIENCES |
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