CN219631257U - Chain extension reaction feeding device - Google Patents
Chain extension reaction feeding device Download PDFInfo
- Publication number
- CN219631257U CN219631257U CN202320346305.2U CN202320346305U CN219631257U CN 219631257 U CN219631257 U CN 219631257U CN 202320346305 U CN202320346305 U CN 202320346305U CN 219631257 U CN219631257 U CN 219631257U
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- China
- Prior art keywords
- pipe
- feeding
- shunt
- ejection
- mounting
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 14
- 238000007599 discharging Methods 0.000 claims abstract description 27
- 238000007086 side reaction Methods 0.000 abstract description 14
- 239000004970 Chain extender Substances 0.000 abstract description 11
- 239000007795 chemical reaction product Substances 0.000 abstract description 8
- 230000037431 insertion Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920002334 Spandex Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000004759 spandex Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The utility model discloses a chain extension reaction feeding device which comprises a first feeding pipe, a second feeding pipe, a shunt pipe, a mounting plate, a discharging branch pipe, insertion holes and discharging holes, wherein one end of the first feeding pipe is provided with an end plate, a plurality of discharging branch pipes are fixed on the end plate, the discharging branch pipes are positioned outside the first feeding pipe and communicated with the inside of the first feeding pipe, a connecting ring is arranged on the outer wall of the first feeding pipe, one end of the connecting ring is fixedly provided with the shunt pipe, the discharging branch pipes are positioned inside the shunt pipe, a second feeding pipe is arranged on the outer wall of the shunt pipe, and the second feeding pipe is communicated with the inside of the shunt pipe. According to the utility model, the discharging branch pipe is matched with the discharging hole, the prepolymer and the chain extender are separated into a plurality of strands to leave when leaving the feeding device, the prepolymer and the chain extender can be rapidly and uniformly mixed, side reaction caused by uneven mixing is not easy to occur, side reaction products are fewer, and the feeding device is not easy to be blocked by the side reaction products.
Description
Technical Field
The utility model relates to the technical field of chemical industry, in particular to the technical field of chain extension reaction feeding devices.
Background
The chain extension reactor in continuous polymerization production line of original spandex fiber industry uses concentric circle type feeding device. The principle of the feeding device is as follows: the prepolymer is viscous liquid, the chain extender is a flowable liquid, and the prepolymer is fed to an outer circular channel of the feeder and fed to an inner core pipe channel of the feeder, so that two materials at an outlet of a concentric circular feeding device cannot be mixed uniformly rapidly and side reactions occur after meeting in the production process; simultaneously, due to the concentric structure, the blades scratch through the concentric outlet plane, so that the chain extender enters the outer circular channel of the prepolymer to generate side reaction and block the outer circular channel; after the feeding device is used for 15-30 days, a large amount of gel byproducts are often generated to block the outlet of the concentric outer circular channel, so that the flow rate and the flow velocity of the prepolymer are changed, the ratio of the prepolymer to the chain extender is changed, and the quality of the product is seriously fluctuated.
Disclosure of Invention
The utility model aims to solve the problems in the prior art, and provides a chain extension reaction feeding device which can ensure that a prepolymer and a chain extender can be quickly and uniformly mixed after leaving the feeding device, so that side reaction caused by uneven mixing is not easy to occur, side reaction products are fewer, and the feeding device is not easy to be blocked by the side reaction products.
In order to achieve the above purpose, the utility model provides a chain extension reaction feeding device, which comprises a first feeding pipe, a second feeding pipe, a shunt pipe, a mounting plate, a discharging branch pipe, a jack and a discharging hole, wherein one end of the first feeding pipe is provided with an end plate, a plurality of discharging branch pipes are fixed on the end plate, the discharging branch pipe is positioned outside the first feeding pipe, the discharging branch pipe is communicated with the inside of the first feeding pipe, a connecting ring is arranged on the outer wall of the first feeding pipe, one end of the connecting ring is fixedly provided with the shunt pipe, the discharging branch pipe is positioned inside the shunt pipe, a second feeding pipe is arranged on the outer wall of the shunt pipe, the second feeding pipe is communicated with the inside of the shunt pipe, the tail end of the shunt pipe is provided with a detachable mounting plate, a plurality of jacks and a plurality of discharging holes are arranged on the mounting plate at intervals, the jacks are matched with the discharging branch pipe, the tail end of the discharging branch pipe is inserted into the discharging hole, and the tail end of the discharging branch pipe is flush with the end of the mounting plate.
Preferably, the first feeding pipe, the end plate, the discharging branch pipe, the connecting ring, the shunt pipe and the second feeding pipe are of an integrated structure.
Preferably, a circle of first mounting flange is arranged on the outer side wall of the shunt tube, the first mounting flange is positioned at the tail end of the shunt tube, a plurality of blind holes with internal threads are formed in the first mounting flange, the mounting plate is tightly attached to the first mounting flange, a plurality of mounting grooves in one-to-one correspondence with the blind holes are formed in the mounting plate, through holes are formed in the bottoms of the mounting grooves, each blind hole is provided with a bolt, the bolts penetrate through the through holes and are screwed on the blind holes, the heads of the bolts abut against the bottoms of the mounting grooves, and the heads of the bolts are positioned inside the mounting grooves.
Preferably, the pipe wall of the second feeding pipe is tangent to the pipe end of the connecting ring, which is close to the diverter pipe end, and the pipe end of the connecting ring is flush with the pipe end of the end plate, which is close to the discharge branch pipe.
The utility model has the beneficial effects that: according to the utility model, the discharging branch pipe is matched with the discharging hole, the prepolymer and the chain extender are separated into a plurality of strands to leave when leaving the feeding device, the prepolymer and the chain extender can be rapidly and uniformly mixed, side reaction caused by uneven mixing is not easy to occur, side reaction products are fewer, and the feeding device is not easy to be blocked by the side reaction products.
The features and advantages of the present utility model will be described in detail by way of example with reference to the accompanying drawings.
Drawings
FIG. 1 is a front view of a chain extension reaction feeding apparatus of the present utility model.
In the figure: 1-first inlet pipe, 2-second inlet pipe, 3-shunt tubes, 4-mounting plate, 10-end plate, 11-discharge branch pipe, 30-connecting ring, 31-first mounting flange, 32-blind hole, 41-jack, 42-discharge hole, 43-mounting groove, 44-through hole, 45-bolt.
Detailed Description
Referring to fig. 1, the chain extension reaction feeding device of the utility model comprises a first feeding pipe 1, a second feeding pipe 2, a shunt pipe 3, a mounting plate 4, a discharge branch pipe 11, a jack 41 and a discharge hole 42, wherein one end of the first feeding pipe 1 is provided with an end plate 10, a plurality of discharge branch pipes 11 are fixed on the end plate 10, the discharge branch pipe 11 is positioned outside the first feeding pipe 1, the discharge branch pipe 11 is communicated with the interior of the first feeding pipe 1, a connecting ring 30 is arranged on the outer wall of the first feeding pipe 1, one end of the connecting ring 30 is fixedly provided with the shunt pipe 3, the discharge branch pipe 11 is positioned inside the shunt pipe 3, the outer wall of the shunt pipe 3 is provided with the second feeding pipe 2, the second feeding pipe 2 is communicated with the interior of the shunt pipe 3, the tail end of the shunt pipe 3 is provided with a detachable mounting plate 4, the mounting plate 4 is provided with a plurality of jacks 41 and a plurality of discharge holes 42, the jacks 41 and the discharge holes 42 are distributed on the mounting plate 4 at intervals, the jacks 41 are matched with the discharge branch pipes 11, the discharge branch pipes 11 are inserted into the discharge holes 42, the tail ends of the discharge branch pipes 11 are flush with the tail ends of the mounting plates 4, and the tail ends of the discharge branch pipes 41 are matched with the tail ends of the mounting plates 11.
The first feeding pipe 1, the end plate 10, the discharging branch pipe 11, the connecting ring 30, the shunt pipe 3 and the second feeding pipe 2 are of an integrated structure.
The outer side wall of the shunt tube 3 is provided with a circle of first mounting flange 31, the first mounting flange 31 is positioned at the tail end of the shunt tube 3, the first mounting flange 31 is provided with a plurality of blind holes 32 with internal threads, the mounting plate 4 is tightly attached to the first mounting flange 31, the mounting plate 4 is provided with a plurality of mounting grooves 43 which are in one-to-one correspondence with the blind holes 32, the bottom of each mounting groove 43 is provided with a through hole 44, each blind hole 32 is provided with a bolt 45, the bolts 45 penetrate through the through holes 44 and are screwed on the blind holes 32, the heads of the bolts 45 are propped against the bottom of the mounting grooves 43, and the heads of the bolts 45 are positioned inside the mounting grooves 43.
The end of the connecting ring 30, which is close to the shunt tube 3, is flush with the end of the end plate 10, which is close to the discharge branch tube 11, and the tube wall of the second feeding tube 2 is tangent to the end of the connecting ring 30, which is close to the shunt tube 3, and dead angles, in which materials entering from the second feeding tube 2 cannot flow, are not easy to exist inside the shunt tube.
The outer side walls of the first feeding pipe 1 and the second feeding pipe 2 are respectively provided with a circle of second mounting flange, the second mounting flanges are positioned at the feeding ends of the first feeding pipe 1 and the second feeding pipe 2, and the first feeding pipe 1 and the second feeding pipe 2 can be fixed with corresponding feeding mechanisms through the second mounting flanges.
The outer side wall of the shunt tube 3 is provided with a circle of third mounting flange, and the shunt tube can be fixed with the chain extension reaction vessel through the third mounting flange.
The working process of the utility model comprises the following steps:
in the working process of the chain extension reaction feeding device, the prepolymer enters the shunt tube 3 through the second feeding tube 2 and flows out from the plurality of discharging holes 42, the chain extender enters the plurality of discharging branch pipes 11 through the first feeding tube 1 and flows out from the discharging branch pipes 11, and the prepolymer and the chain extender are separated into a plurality of strands to leave when leaving the feeding device, so that the prepolymer and the chain extender can be quickly and uniformly mixed, side reaction caused by uneven mixing is not easy to occur, side reaction products are fewer, and the feeding device is not easy to be blocked by the side reaction products.
The above embodiments are illustrative of the present utility model, and not limiting, and any simple modifications of the present utility model fall within the scope of the present utility model.
Claims (4)
1. Chain extension reaction feed arrangement, its characterized in that: including first inlet pipe (1), second inlet pipe (2), shunt tubes (3), mounting panel (4), ejection of compact branch pipe (11), jack (41), discharge port (42), the one end of first inlet pipe (1) is equipped with end plate (10), is fixed with a plurality of ejection of compact branch pipe (11) on end plate (10), and ejection of compact branch pipe (11) are located the outside of first inlet pipe (1), and ejection of compact branch pipe (11) are linked together with the inside of first inlet pipe (1), be equipped with a go-between (30) on the outer wall of first inlet pipe (1), go-between (30) one end is fixed with shunt tubes (3), and ejection of compact branch pipe (11) are located inside shunt tubes (3), be equipped with a second inlet pipe (2) on the outer wall of shunt tubes (3), and a detachable mounting panel (4) are installed to the end of shunt tubes (3), are equipped with a plurality of jack (41) and a plurality of discharge port (42), and the spaced distribution of ejection of jack (41) and discharge port (42) are in mounting panel (4), and jack (41) are inserted in ejection of compact branch pipe (11) and are suited to the ejection of compact port (42), the tail end of the discharging branch pipe (11) is flush with the end of the mounting plate (4).
2. The chain extension reaction feed device of claim 1, wherein: the novel feeding device is characterized in that the first feeding pipe (1), the end plate (10), the discharging branch pipe (11), the connecting ring (30), the shunt pipe (3) and the second feeding pipe (2) are of an integrated structure.
3. The chain extension reaction feed device of claim 1, wherein: be equipped with round first mounting flange (31) on the lateral wall of shunt tubes (3), first mounting flange (31) are located the end of shunt tubes (3), be equipped with a plurality of blind holes (32) that have the internal thread on first mounting flange (31), first mounting flange (31) are hugged closely to mounting panel (4), be equipped with a plurality of mounting groove (43) with blind hole (32) one-to-one on mounting panel (4), the tank bottom of mounting groove (43) is equipped with through-hole (44), every blind hole (32) are furnished with a bolt (45), bolt (45) are passed through-hole (44) and are twisted on blind hole (32), the head of bolt (45) supports the tank bottom of mounting groove (43), the head of bolt (45) is located inside mounting groove (43).
4. The chain extension reaction feed device of claim 1, wherein: the end, close to the shunt tube (3), of the connecting ring (30) is flush with the end, close to the discharge branch tube (11), of the end plate (10), and the tube wall of the second feeding tube (2) is tangent to the end, close to the shunt tube (3), of the connecting ring (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320346305.2U CN219631257U (en) | 2023-02-20 | 2023-02-20 | Chain extension reaction feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320346305.2U CN219631257U (en) | 2023-02-20 | 2023-02-20 | Chain extension reaction feeding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219631257U true CN219631257U (en) | 2023-09-05 |
Family
ID=87812792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320346305.2U Active CN219631257U (en) | 2023-02-20 | 2023-02-20 | Chain extension reaction feeding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219631257U (en) |
-
2023
- 2023-02-20 CN CN202320346305.2U patent/CN219631257U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |