CN117566676A - Material distributing device for polyether polyol - Google Patents
Material distributing device for polyether polyol Download PDFInfo
- Publication number
- CN117566676A CN117566676A CN202410065996.8A CN202410065996A CN117566676A CN 117566676 A CN117566676 A CN 117566676A CN 202410065996 A CN202410065996 A CN 202410065996A CN 117566676 A CN117566676 A CN 117566676A
- Authority
- CN
- China
- Prior art keywords
- filling
- filling head
- polyether polyol
- ring
- tube
- 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.)
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Links
- 239000004721 Polyphenylene oxide Substances 0.000 title claims abstract description 66
- 229920000570 polyether Polymers 0.000 title claims abstract description 66
- 229920005862 polyol Polymers 0.000 title claims abstract description 65
- 150000003077 polyols Chemical class 0.000 title claims abstract description 65
- 239000000463 material Substances 0.000 title abstract description 21
- 238000004806 packaging method and process Methods 0.000 claims abstract description 29
- 230000001681 protective effect Effects 0.000 claims abstract description 28
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 18
- 230000003647 oxidation Effects 0.000 claims abstract description 13
- 238000005507 spraying Methods 0.000 claims abstract description 6
- 239000007921 spray Substances 0.000 claims description 24
- 238000007789 sealing Methods 0.000 claims description 19
- 238000005273 aeration Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 63
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000005429 filling process Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Abstract
The invention belongs to the technical field of polyether polyol filling, and particularly relates to a material distributing device for polyether polyol; comprising the following steps: a filling machine, wherein the filling machine comprises a filling head, and polyether polyol can be filled into a packaging barrel through the filling head; the polyether polyol is with feed divider still includes: an inflation dredging unit; according to the invention, the filling head is provided with the inflation dredging unit, and the inflation dredging unit can charge protective gas into the packaging barrel to reduce oxidation of polyether polyol in contact with air during filling, and the purpose of dredging the filling head is achieved by spraying gas from the filling head during filling, so that the fluidity of the polyether polyol is increased, the filling speed is indirectly increased, and the possibility of blockage is reduced.
Description
Technical Field
The invention belongs to the technical field of polyether polyol filling, and particularly relates to a material distributing device for polyether polyol.
Background
Polyether polyol is a high molecular weight organic compound, and the molecular structure of the polyether polyol contains ether bonds and hydroxyl groups; the preparation method is an important polymer raw material and is widely applied to the preparation of polymers such as polyurethane, polyether and the like; polyether polyols generally have high molecular weights and high viscosities; they have many special chemical and physical properties such as good solubility, high temperature stability, chemical resistance, etc.; polyether polyols are widely used in the fields of coatings, adhesives, elastomers, foams, and the like, due to their special structure and properties;
polyether polyols are generally required to be divided during production and transport; when polyether polyols are to be separated, polyether polyols are often filled into packaging barrels by means of filling machines; however, the relatively high viscosity of some polyether polyols may result in poor flowability during the filling process, and may require relatively long time and higher pressure to complete the filling process, even causing clogging of the filling head; in addition, polyether polyols are susceptible to oxidation reactions by contact with air during filling, which can lead to reduced quality and reduced performance of the polyether polyols, especially in the case of larger packaging barrels, with more internal air and a higher probability of oxidation.
In view of the above, the present invention solves the above-mentioned problems by providing a dispensing device for polyether polyols.
Disclosure of Invention
In order to make up for the deficiency of the prior art, the filling speed of polyether polyol is increased and oxidation is reduced; the invention provides a material distributing device for polyether polyol.
The technical scheme adopted for solving the technical problems is as follows: a polyether polyol is with feed divider, includes: a filling machine, wherein the filling machine comprises a filling head, and polyether polyol can be filled into a packaging barrel through the filling head; the polyether polyol is with feed divider still includes: the filling head is provided with an inflation dredging unit, the inflation dredging unit can charge protective gas into the packaging barrel to reduce oxidation of polyether polyol when the polyether polyol is filled, and the purpose of dredging the filling head is achieved by spraying gas from the inside of the filling head when the polyether polyol is filled, so that the fluidity of the polyether polyol is increased, the filling speed is indirectly increased, and the possibility of blockage is reduced;
in this application, the liquid filling machine is the liquid filling machine of prior art.
Preferably, the aeration dredging unit comprises: the fixed ring is fixedly arranged on the filling head; the gas transmission pipe is internally provided with a first cavity, the top of the fixing ring is fixedly connected with the gas transmission pipe, the gas transmission pipe is communicated with the first cavity, and the gas transmission pipe can introduce protective gas into the first cavity; the transverse tube is fixedly arranged in the fixing ring, one end of the transverse tube is communicated with the first cavity, and the other end of the transverse tube extends into the filling head; the spray pipes are fixedly arranged at the bottoms of the transverse pipes, and each spray pipe is located inside the filling head and arranged downwards.
Preferably, an air outlet is arranged on the fixing ring, and a one-way valve is fixedly arranged in the air outlet.
Preferably, an annular air bag is fixedly arranged around the fixing ring, the annular air bag is communicated with the first cavity, and a first electromagnetic valve is fixedly arranged at the communication position;
the shielding gas may be an inert gas such as nitrogen or the like; firstly, moving the fixing ring to the bung hole of the packaging barrel, opening a first electromagnetic valve, injecting protective gas into the first cavity through the gas pipe, expanding the annular air bag, extruding the annular air bag with the inner wall of the bung hole of the packaging barrel, sealing the bung hole of the packaging barrel by the fixing ring, and adapting to bung holes with different sizes according to different expansion degrees of the annular air bag; then closing the first electromagnetic valve, continuously introducing protective gas into the first cavity, gradually filling the protective gas into the packaging barrel, expelling air, reducing oxidation reaction caused by contact with air during filling, and only allowing gas to overflow from the packaging barrel by the one-way valve, so that the gas outlet and the one-way valve are arranged to ensure the overflow of the gas; after a moment, filling is started through the filling head, and protective gas can be introduced during filling, and because the orifice of the spray pipe is downward, the protective gas is sprayed downwards through the spray pipe and is sprayed together with polyether polyol, so that the fluidity and the flow rate of the polyether polyol are increased, the filling speed is increased, and the blockage of the filling head is reduced; and the protection of the protective gas is equivalent to that of the filling, so that the oxidation is further reduced; in addition, the arrangement of the transverse tube has little influence on the permeability of the filling head.
Preferably, a first ring is arranged at a position which is positioned below the transverse tube and inside the filling head, an elastic air bag is fixedly arranged around the first ring, and a first tube is horizontally and fixedly connected with the center of the first ring.
Preferably, the bottom of the transverse tube is fixedly connected with an elastic tube at the position inside the filling head, the other end of the elastic tube is fixedly connected with a first tube, and the interior of the transverse tube, the interior of the elastic tube, the interior of the first tube and the interior of the elastic air bag are all communicated; and a second electromagnetic valve is fixedly arranged in each spray pipe.
Preferably, a support is fixedly connected in the bottom outlet of the filling head, and a sealing block is fixedly connected on the support.
Preferably, the position of the sealing block corresponds to the first ring, and the inner diameter of the first ring is equal to the outer diameter of the sealing block;
the elastic air bag and the elastic tube can recover deformation, and when in an initial state, the elastic tube is in the original position, and the first ring is positioned at a position of the filling head far away from the bottom; when the second electromagnetic valve is opened, most of gas is sprayed out of the spray pipe, so that the elastic pipe is basically rarely stretched; therefore, when the filling is carried out, the first cavity is continuously filled with the protective gas, the second electromagnetic valve can be regularly opened and closed, and when the second electromagnetic valve is closed, the spray pipe is not sprayed with air any more, the gas enters the first pipe and the elastic air bag through the elastic pipe, and then the elastic air bag is expanded to contact the inside of the filling head, and the first ring moves downwards under the pushing of the gas and the self expansion of the elastic pipe, so that the scraping of the elastic air bag on the inner wall of the filling head is realized; when the first electromagnetic valve is closed, the first ring moves up and down, and when the first electromagnetic valve moves down, the elastic air bag expands to scrape the inner wall of the filling head, so that the material residue on the inner wall of the filling head is reduced, the flowability of the material is increased, the filling speed is increased, and the blocking condition of the filling head is further reduced; when the material moves upwards, the elastic air bag contracts, does not contact the inner wall of the filling head, prevents the material from being sucked back again, and when the material moves upwards, the spray pipe also sprays gas, and the fluidity of the material is increased by mutual cooperation; the filling speed is improved, and the blockage is reduced; the sealing block and the first ring can be mutually anastomosed, when filling is finished, the second electromagnetic valve can be closed, and the protective gas is introduced, so that the first ring is anastomosed with the sealing block; therefore, the sealing block has a limiting effect on one hand, and on the other hand, the bottom of the filling head is sealed by matching with the elastic air bag, so that after filling is finished, the material of the filling head is prevented from dripping, the contact between the material inside the filling head and air after the filling head is pulled out is reduced, and the oxidation of the material inside the filling head is reduced; it is worth noting that the elastic tube, the first ring, the first tube, the bracket and the sealing block have little influence on the permeability of the filling head.
The beneficial effects of the invention are as follows:
1. according to the distributing device for polyether polyol, the filling head is provided with the inflation dredging unit, and the inflation dredging unit can charge protective gas into the packaging barrel to reduce oxidation of the polyether polyol when the polyether polyol is filled, and the purpose of dredging the filling head is achieved by spraying gas from the filling head when the polyether polyol is filled, so that the flowability of the polyether polyol is improved, the filling speed is indirectly increased, and the possibility of blockage is reduced.
2. According to the distributing device for polyether polyol, the fixing ring is moved to the bung hole of the packaging barrel, the first electromagnetic valve is opened, and the protection gas is injected into the first cavity through the gas pipe, so that the annular air bag expands and is extruded with the inner wall of the bung hole of the packaging barrel, the fixing ring seals the bung hole of the packaging barrel, and the bung hole of different sizes can be adapted according to different expansion degrees of the annular air bag; then closing the first electromagnetic valve, continuously introducing protective gas into the first cavity, gradually filling the protective gas into the packaging barrel, expelling air, reducing oxidation reaction caused by contact with air during filling, and only allowing gas to overflow from the packaging barrel by the one-way valve, so that the gas outlet and the one-way valve are arranged to ensure the overflow of the gas; after a moment, filling is started through the filling head, and protective gas can be introduced during filling, and because the orifice of the spray pipe is downward, the protective gas is sprayed downwards through the spray pipe and is sprayed together with polyether polyol, so that the fluidity and the flow rate of the polyether polyol are increased, the filling speed is increased, and the blockage of the filling head is reduced; and the protection of the protective gas is equivalent to that of the filling, so that the oxidation is further reduced.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a perspective view of the filling head of the present invention;
FIG. 3 is a second perspective view of the filling head of the present invention;
FIG. 4 is a perspective view of the connection of the cross tube and the first ring of the present invention;
FIG. 5 is a cross-sectional view of the filling head of the present invention;
FIG. 6 is an enlarged view of a portion of FIG. 5 at A;
FIG. 7 is an enlarged view of a portion at B of FIG. 5;
FIG. 8 is an enlarged view of a portion of FIG. 5 at C;
in the figure: 1. filling machine; 2. a filling head; 3. an inflation dredging unit; 31. a fixing ring; 32. a gas pipe; 33. a first cavity; 34. a transverse tube; 35. a spray pipe; 36. an air outlet; 37. a one-way valve; 38. an annular air bag; 39. a first electromagnetic valve; 4. a first ring; 41. an elastic air bag; 42. a first pipe; 43. an elastic tube; 44. a second electromagnetic valve; 5. a bracket; 51. and a sealing block.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1, a dispensing device for polyether polyol according to the present invention includes: the filling machine 1 comprises a filling head 2, and the filling machine 1 can fill polyether polyol into a packaging barrel through the filling head 2; the polyether polyol is with feed divider still includes: the filling head 2 is provided with an inflation dredging unit 3, the inflation dredging unit 3 can charge protective gas into the packaging barrel to reduce oxidation of polyether polyol when the polyether polyol is filled, and the purpose of dredging the filling head 2 is achieved by spraying gas from the inside of the filling head 2 when the polyether polyol is filled;
in operation, when polyether polyol is dispensed, polyether polyol is often filled into a packaging barrel by a filling machine 1; however, the relatively high viscosity of some polyether polyols may result in poor flowability during filling, and may require relatively long time and higher pressure to complete filling, even causing clogging of the filling head 2; in addition, polyether polyol is easy to contact with air to perform oxidation reaction during filling, which can lead to the quality reduction and performance reduction of the polyether polyol, and particularly for the case of larger packaging barrels, the more internal air is, the higher the probability of being oxidized is; the filling head 2 is provided with the inflation dredging unit 3, and the inflation dredging unit 3 can charge protective gas into the packaging barrel to reduce oxidation of polyether polyol when in filling and reduce blocking possibility by spraying gas from the inside of the filling head 2 when in filling so as to achieve the purpose of dredging the filling head 2, thereby increasing the fluidity of the polyether polyol and indirectly increasing the filling speed;
in the present application, the filling machine 1 is a filling machine 1 in the prior art.
As a specific embodiment of the present invention, as shown in fig. 2, 3, 5, and 6, the aeration dredging unit 3 includes: the fixed ring 31 is fixedly arranged on the filling head 2; the gas pipe 32, the first cavity 33 is formed in the fixed ring 31, the gas pipe 32 is fixedly connected to the top of the fixed ring 31, the gas pipe 32 is communicated with the first cavity 33, and the gas pipe 32 can introduce protective gas into the first cavity 33; the transverse tube 34 is fixedly arranged in the fixed ring 31, one end of the transverse tube 34 is communicated with the first cavity 33, and the other end extends into the filling head 2; the spray pipes 35, the bottom of the horizontal pipe 34 is fixedly provided with a plurality of spray pipes 35, each spray pipe 35 is positioned in the filling head 2 and the pipe orifice is downward;
as shown in fig. 5, the fixing ring 31 is provided with an air outlet 36, and a one-way valve 37 is fixedly arranged in the air outlet 36;
as shown in fig. 2, 3, 5 and 6, an annular air bag 38 is fixedly arranged around the fixing ring 31, the annular air bag 38 is communicated with the first cavity 33, and a first electromagnetic valve 39 is fixedly arranged at the communication position;
in operation, the shielding gas may be an inert gas, such as nitrogen; firstly, the fixed ring 31 is moved to the bung hole of the packaging barrel, the first electromagnetic valve 39 is opened, and the protective gas is injected into the first cavity 33 through the gas pipe 32, so that the annular air bag 38 is inflated and extruded with the inner wall of the bung hole of the packaging barrel, the fixed ring 31 is realized to seal the bung hole of the packaging barrel, and the bung holes with different sizes are adapted according to different inflation degrees of the annular air bag 38; then the first electromagnetic valve 39 is closed, the protection gas is continuously introduced into the first cavity 33, the protection gas is gradually filled in the packaging barrel, the air is completely removed, the oxidation reaction caused by contact with the air during filling is reduced, and the one-way valve 37 only allows the gas to overflow from the packaging barrel, so that the gas outlet 36 and the one-way valve 37 are arranged to ensure the overflow of the gas; after a moment, the filling is started through the filling head 2, and protective gas can be introduced during the filling, and the protective gas is sprayed downwards through the spray pipe 35 and is sprayed together with polyether polyol through the spray pipe 35, so that the fluidity and the flow rate of the polyether polyol are increased, the filling speed is improved, and the blockage of the filling head 2 is reduced; and the protection of the protective gas is equivalent to that of the filling, so that the oxidation is further reduced; in addition, the arrangement of the transverse tube 34 has little influence on the permeability of the filling head 2.
As a specific embodiment of the present invention, as shown in fig. 4, 5 and 8, a first ring 4 is arranged at a position which is positioned below the horizontal tube 34 inside the filling head 2, an elastic air bag 41 is fixedly arranged around the first ring 4, and a first tube 42 is horizontally and fixedly connected with the center of the first ring 4;
as shown in fig. 4, 5 and 8, an elastic tube 43 is fixedly connected to the bottom of the transverse tube 34 and located in the filling head 2, the other end of the elastic tube 43 is fixedly connected to a first tube 42, and the interior of the transverse tube 34, the interior of the elastic tube 43, the interior of the first tube 42 and the interior of the elastic air bag 41 are all communicated; a second electromagnetic valve 44 is fixedly arranged in each spray pipe 35;
as shown in fig. 3, 5 and 8, a bracket 5 is fixedly connected in the bottom outlet of the filling head 2, and a sealing block 51 is fixedly connected on the bracket 5;
as shown in fig. 5 and 8, the position of the sealing block 51 corresponds to the first ring 4, and the inner diameter of the first ring 4 is equal to the outer diameter of the sealing block 51;
when the filling head works, the elastic air bag 41 and the elastic tube 43 can recover deformation, and in the initial state, the elastic tube 43 is in the original position, and the first ring 4 is positioned at the part of the filling head 2 far away from the bottom; when the second electromagnetic valve 44 is opened, most of the gas is ejected from the nozzle 35, and the elastic tube 43 is hardly stretched; therefore, when filling, the first cavity 33 is continuously filled with the protective gas, the second electromagnetic valve 44 can be regularly opened and closed, when the second electromagnetic valve 44 is closed, the spray pipe 35 is not sprayed any more, the gas enters the first pipe 42 and the elastic air bag 41 through the elastic pipe 43, the elastic air bag 41 is further expanded to contact the inside of the filling head 2, and the first ring 4 is moved downwards under the pushing of the gas and the self expansion of the elastic pipe 43, so that the scraping of the elastic air bag 41 on the inner wall of the filling head 2 is realized; when the first electromagnetic valve 44 is opened to a certain extent, the air pressure disappears, the elastic tube 43 and the elastic air bag 41 shrink, namely the first ring 4 rises, the elastic air bag 41 is not contacted with the inner wall of the filling head 2 any more, and the condition of re-plugging polyether polyol is reduced in the rising process of the first ring 4, so that the first ring 4 moves up and down by opening and closing the second electromagnetic valve 44, and when the first ring moves down, the elastic air bag 41 expands to scrape the inner wall of the filling head 2, so that the material residue on the inner wall of the filling head 2 is reduced, the material fluidity is increased, the filling speed is increased, and the condition of blocking of the filling head 2 is further reduced; when moving upwards, the elastic air bag 41 contracts, does not contact the inner wall of the filling head 2, prevents the material from being sucked back again, and when moving upwards, the spray pipe 35 also sprays gas, and the fluidity of the material is increased by mutual cooperation; the filling speed is improved, and the blockage is reduced; the sealing block 51 and the first ring 4 can be mutually matched, when filling is finished, the second electromagnetic valve 44 can be closed, and the protective gas is introduced, so that the first ring 4 is matched with the sealing block 51; therefore, the sealing block 51 has a limiting function on one hand, and on the other hand, the bottom of the filling head 2 is sealed by matching with the elastic air bag 41, so that after filling is finished, the material of the filling head 2 is prevented from dripping, the contact between the internal material of the filling head 2 and air after the filling head 2 is pulled out is reduced, and the oxidation of the internal material is reduced; notably, the elastic tube 43, the first ring 4, the first tube 42, the bracket 5 and the sealing block 51 have a small influence on the permeability of the filling head 2.
Claims (6)
1. A polyether polyol is with feed divider, includes:
a filling machine (1), wherein the filling machine (1) comprises a filling head (2), and the filling machine (1) can fill polyether polyol into a packaging barrel through the filling head (2);
the method is characterized in that: the polyether polyol is with feed divider still includes:
the filling head (2) is provided with an inflation dredging unit (3), the inflation dredging unit (3) can charge protective gas into the packaging barrel to reduce the oxidation of polyether polyol when in filling and the air contact, and the purpose of dredging the filling head (2) is achieved by spraying gas from the inside of the filling head (2) when in filling;
the aeration dredging unit (3) comprises:
the fixed ring (31) is fixedly arranged on the filling head (2);
the gas pipe (32), a first cavity (33) is formed in the fixed ring (31), the gas pipe (32) is fixedly connected to the top of the fixed ring (31), the gas pipe (32) is communicated with the first cavity (33), and the gas pipe (32) can introduce protective gas into the first cavity (33);
the transverse tube (34) is fixedly arranged in the fixing ring (31), one end of the transverse tube (34) is communicated with the first cavity (33), and the other end of the transverse tube extends into the filling head (2);
the bottom of the transverse pipe (34) is fixedly provided with a plurality of spray pipes (35), each spray pipe (35) is positioned in the filling head (2) and the pipe orifice is downward;
an air outlet (36) is formed in the fixing ring (31), and a one-way valve (37) is fixedly arranged in the air outlet (36).
2. A dispensing device for polyether polyols as recited in claim 1, wherein: the periphery of the fixed ring (31) is fixedly provided with an annular air bag (38), the annular air bag (38) is communicated with the first cavity (33), and a first electromagnetic valve (39) is fixedly arranged at the communicating position.
3. A dispensing device for polyether polyols as recited in claim 2, wherein: the filling head (2) is internally provided with a first ring (4) at a position below the transverse tube (34), an elastic air bag (41) is fixedly arranged around the first ring (4), and a first tube (42) is horizontally and fixedly connected with the center of the first ring (4).
4. A polyether polyol dispensing device according to claim 3, wherein: the bottom of the transverse tube (34) is fixedly connected with an elastic tube (43) at the position which is positioned in the filling head (2), the other end of the elastic tube (43) is fixedly connected with a first tube (42), and the interior of the transverse tube (34), the interior of the elastic tube (43), the interior of the first tube (42) and the interior of the elastic air bag (41) are all communicated; and a second electromagnetic valve (44) is fixedly arranged in each spray pipe (35).
5. The dispensing device for polyether polyol according to claim 4, wherein: a support (5) is fixedly connected in the bottom outlet of the filling head (2), and a sealing block (51) is fixedly connected on the support (5).
6. A polyether polyol dispensing device as defined in claim 5, wherein: the sealing block (51) is positioned corresponding to the first ring (4), and the inner diameter of the first ring (4) is equal to the outer diameter of the sealing block (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410065996.8A CN117566676B (en) | 2024-01-17 | 2024-01-17 | Material distributing device for polyether polyol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410065996.8A CN117566676B (en) | 2024-01-17 | 2024-01-17 | Material distributing device for polyether polyol |
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| Publication Number | Publication Date |
|---|---|
| CN117566676A true CN117566676A (en) | 2024-02-20 |
| CN117566676B CN117566676B (en) | 2024-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410065996.8A Active CN117566676B (en) | 2024-01-17 | 2024-01-17 | Material distributing device for polyether polyol |
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