CN113000002A - Horizontal tackifying reactor for preparing PBT - Google Patents
Horizontal tackifying reactor for preparing PBT Download PDFInfo
- Publication number
- CN113000002A CN113000002A CN202110299734.4A CN202110299734A CN113000002A CN 113000002 A CN113000002 A CN 113000002A CN 202110299734 A CN202110299734 A CN 202110299734A CN 113000002 A CN113000002 A CN 113000002A
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- Prior art keywords
- cavity
- horizontal
- pipe
- tank body
- pbt
- 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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- 238000007599 discharging Methods 0.000 claims description 6
- 238000005485 electric heating Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 7
- 230000007547 defect Effects 0.000 abstract description 4
- 238000006068 polycondensation reaction Methods 0.000 abstract description 4
- 238000001125 extrusion Methods 0.000 abstract description 3
- 229920001707 polybutylene terephthalate Polymers 0.000 description 23
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 5
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- -1 polybutylene terephthalate Polymers 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000002178 crystalline material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 229920003247 engineering thermoplastic Polymers 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000874 polytetramethylene terephthalate Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
- B01J19/20—Stationary reactors having moving elements inside in the form of helices, e.g. screw reactors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/0013—Controlling the temperature of the process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
A horizontal tackifying reactor for preparing PBT relates to a PBT reaction device, a piston (6) is connected to one end of a cavity (11) in a sliding manner, a turntable (25) is connected to the other end of the cavity (11) in a rotating manner, the end part of a rotating shaft B (22) arranged on a motor B (19) extends into the cavity (11) along a through hole A (28) and then extends out of the other end of a tank body (10) along a through hole B (30), an elastic spiral blade (24) is connected to the outer part of the rotating shaft B (22) in a sliding manner, a gear (5) is sleeved on a rotating shaft A (4) arranged on a motor A (3), and the gear (5) and a rotating wheel (16) clamp a rack (1); according to the invention, the reactor is arranged to be in a horizontal structure, and the material is pushed into the next link by an extrusion mode when the reaction of the process step is completed, so that the defect that more viscous PBT remains when the tackifying polycondensation reaction is completed and the next process is carried out is overcome.
Description
Technical Field
The invention relates to a PBT reaction device, in particular to a horizontal tackifying reactor for preparing PBT.
Background
PBT plastic refers to a plastic composed mainly of polybutylene terephthalate, also known as polytetramethylene terephthalate, which is a condensation polymer of terephthalic acid and 1, 4-butanediol. PBT is one of the toughest engineering thermoplastic materials, a semi-crystalline material with very good chemical stability, mechanical strength, electrical insulation properties and thermal stability. PBT is an important raw material for electronic and electric appliances, automobiles, industrial parts and the like. During the polycondensation reaction in the process of preparing PBT, a horizontal reactor is generally used, and the traditional horizontal reactor has difficulty in treating materials adhered in the reactor after the reaction is finished.
Disclosure of Invention
In order to overcome the defects in the background art, the invention discloses a horizontal tackifying reactor for preparing PBT, which is characterized in that the reactor is arranged to be in a horizontal structure, and materials are pushed into the next link in an extrusion mode when the reaction in the process step is completed, so that the defect that more viscous PBT remains when the tackifying polycondensation reaction is completed and the next process is carried out is overcome.
In order to realize the purpose, the invention adopts the following technical scheme:
a horizontal tackifying reactor for preparing PBT comprises a tank body, wherein the tank body is of a horizontal structure, a cavity with two open ends is arranged in the tank body, a piston is connected to one end of the cavity in a sliding manner, a through hole A is arranged at the center part of the piston, a rotary disc is connected to the other end of the cavity in a rotating manner, a through hole B is arranged at the center part of the rotary disc, two convex blocks are oppositely arranged on the side wall of the through hole B, a motor B is arranged at one end of the tank body, the end part of a rotary shaft B arranged on the motor B extends into the cavity along the through hole A and then extends out of the other end of the tank body along the through hole B, a baffle plate is fixedly connected to the rotary shaft B at one side of the piston in the cavity, two tank bodies are oppositely arranged on the outer edge surface of the rotary shaft B between the baffle plate and the end part of the rotary shaft B, the convex blocks are respectively arranged, the outer edge of the elastic helical blade is in clearance fit with the side wall of the cavity, one end of the elastic helical blade is fixedly connected with the baffle plate, the other end of the elastic helical blade is fixedly connected with the turntable, the two opposite sides of the inner edge of the elastic spiral blade at the same position as the convex block are respectively provided with sliding sheets at intervals along the axial direction, two groups of sliding sheets are respectively arranged in the two groove bodies, a rack is arranged at one end of the motor B, which is back to the rotating shaft B, teeth are arranged on the rack at intervals, a gear is sleeved on the rotating shaft A arranged on the motor A, the gear and the rotating wheel clamp the rack, the teeth are engaged with the gear, a feed pipe which runs through the cavity is arranged at one end of the top of the tank body close to the piston, an air outlet pipe which runs through the cavity is arranged at one end of the top of the tank body close to the turntable, the bottom of the tank body is provided with a discharging pipe communicated with the cavity at one end close to the rotary table, and an inclined pipe with one end of the feeding pipe, the other end of the discharging pipe and the other end of the discharging pipe being higher is arranged between the feeding pipe and the discharging pipe.
The horizontal tackifying reactor for preparing the PBT is characterized in that a valve A is arranged on a feeding pipe between an inclined pipe and a tank body.
The horizontal tackifying reactor for preparing the PBT is characterized in that a valve B is arranged on a feeding pipe above the junction of an inclined pipe and the feeding pipe.
The horizontal tackifying reactor for preparing the PBT is characterized in that a valve C is arranged on an air outlet pipe between the inclined pipe and the tank body.
The horizontal tackifying reactor for preparing the PBT is characterized in that a valve D is arranged on an air outlet pipe above the intersection of an inclined pipe and the air outlet pipe.
The valve E is arranged on the discharge pipe of the horizontal tackifying reactor for preparing the PBT.
The horizontal tackifying reactor for preparing the PBT is characterized in that a support is arranged at the bottom of a tank body, an L-shaped support rod is arranged between the support and a motor A, and a rotating wheel is arranged on the L-shaped support rod through a wheel shaft.
The horizontal tackifying reactor for preparing the PBT is characterized in that a ring groove is formed in the side wall of the other end of the cavity, and a convex ring is arranged on the outer edge surface of the rotary disc and is arranged in the ring groove.
The rotating shaft B and the piston are concentric, the rotating shaft B can rotate in the through hole A, and the rotating shaft B and the rotating disc are concentric.
The horizontal tackifying reactor for preparing the PBT is characterized in that an electric heating wire is embedded in the wall of the tank body.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
according to the horizontal tackifying reactor for preparing PBT, disclosed by the invention, the reactor is set to be of a horizontal structure, and materials are pushed into the next link by an extrusion mode when the reaction in the process step is completed, so that the defect that more viscous PBT remains when the tackifying polycondensation reaction is completed and the next process is carried out is overcome; the invention has unique design, strong practicability, energy saving, consumption reduction, good reaction effect and great market popularization value.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the piston of the present invention;
FIG. 3 is a schematic view of the structure of the rotating shaft B and the turntable;
FIG. 4 is a schematic view of the structure of the invention in which the shaft B and the elastic helical blade are engaged;
FIG. 5 is an enlarged schematic view of the structure at A in FIG. 1;
fig. 6 is a schematic view of the structure of the present invention in use.
In the figure: 1. a rack; 2. teeth; 3. a motor A; 4. a rotating shaft A; 5. a gear; 6. a piston; 7. a valve A; 8. a valve B; 9. a feed pipe; 10. a tank body; 11. a cavity; 12. an inclined tube; 13. a valve C; 14. a valve D; 15. an air outlet pipe; 16. a rotating wheel; 17. a wheel axle; 18. an L-shaped support bar; 19. a motor B; 20. a baffle plate; 21. a support; 22. a rotating shaft B; 23. a trough body; 24. an elastic helical blade; 25. a turntable; 26. a discharge pipe; 27. a valve E; 28. punching a hole A; 29. a raised block; 30. punching a hole B; 31. sliding blades; 32. a ring groove; 33. a raised ring; 34. an electric heating wire.
Detailed Description
The present invention will be explained in more detail by the following examples, which are not intended to limit the present invention, and all changes and modifications within the scope of the present invention are intended to be protected by the disclosure of the present invention;
the horizontal tackifying reactor for preparing PBT described in the attached figures 1-5 comprises a tank body 10, the tank body 10 is a horizontal structure, a heating wire 34 is embedded in the tank wall of the tank body 10, a cavity 11 with two open ends is arranged in the tank body 10, a piston 6 is connected to one end of the cavity 11 in a sliding manner, a through hole A28 is arranged at the center of the piston 6, an annular groove 32 is arranged on the side wall of the other end of the cavity 11, a raised ring 33 is arranged on the outer edge surface of a turntable 25, the raised ring 33 is arranged in the annular groove 32, the turntable 25 is rotatably connected to the other end of the cavity 11, a through hole B30 is arranged at the center of the turntable 25, two raised blocks 29 are arranged on the side wall of the through hole B30, a motor B19 is arranged at one end of the tank body 10, the end of a rotating shaft B22 arranged on the motor B19 extends into the cavity 11 along the through hole A28 and then extends out of the other end of the tank body 10 along the through hole B, the rotating shaft B22 is concentric with the rotating disc 25, a baffle 20 is fixedly connected on the rotating shaft B22 which is positioned at one side of the piston 6 in the cavity 11, two groove bodies 23 are oppositely arranged on the outer edge surface of the rotating shaft B22 between the baffle 20 and the end part of the rotating shaft B22, two convex blocks 29 are respectively arranged at two opposite sides of the inner edge surface of the through hole B30, the two convex blocks 29 are respectively arranged in the two groove bodies 23, the elastic helical blade 24 is slidably connected outside the rotating shaft B22, the outer edge of the elastic helical blade 24 is in clearance fit with the side wall of the cavity 11, one end of the elastic helical blade 24 is fixedly connected with the baffle 20, the other end of the elastic helical blade 24 is fixedly connected with the rotating disc 25, slide pieces 31 are respectively arranged at intervals along the axial direction at two opposite sides of the inner edge of the elastic helical blade 24 at the same position with the convex blocks 29, two groups of slide pieces 31 are respectively arranged in the two groove bodies 23, a rack 1 is arranged at, a rotating shaft A4 arranged on a motor A3 is sleeved with a gear 5, the gear 5 and a rotating wheel 16 clamp a rack 1, a tooth 2 is meshed with the gear 5, one end of the top of a tank body 10 close to a piston 6 is provided with a feed pipe 9 penetrating through a cavity 11, one end of the top of the tank body 10 close to a rotating disc 25 is provided with an air outlet pipe 15 penetrating through the cavity 11, one end of the bottom of the tank body 10 close to the rotating disc 25 is provided with a discharge pipe 26 penetrating through the cavity 11, the discharge pipe 26 is provided with a valve E27, an inclined pipe 12 with one end of the feed pipe 9, the other end of the bottom of the air outlet pipe 15 and the other end of the air outlet pipe are high, the feed pipe 9 between the inclined pipe 12 and the tank body 10 is provided with a valve A7, the feed pipe 9 above the intersection of the inclined pipe 12 and the feed pipe 9 is provided with a valve B8, a support 21 is arranged at the bottom of the tank body 10, an L-shaped support rod 18 is arranged between the support 21 and a motor A3, and the rotating wheel 16 is arranged on the L-shaped support rod 18 through an axle 17.
When the horizontal tackifying reactor for preparing PBT, which is disclosed by the invention, is implemented, with reference to FIG. 6, when in use, the motor A3, the motor B19 and the heating wire 34 are respectively connected with the control switch and the power supply, the air outlet pipe 15 is connected with the vacuum pump and the recovery tank, the valve B8, the valve A7, the valve C13, the valve D14 and the vacuum pump are opened, the valve E27 is closed, the product of esterification of terephthalic acid (PTA) and 1, 4-Butanediol (BDO) is added with the catalyst and then injected into the cavity 11 along the feed pipe 9, the valve B8 is closed, the temperature in the cavity 11 is controlled at 240-, therefore, the baffle 20 and the rotating disk 25 rotate along with the rotating shaft B22, and because one end of the elastic helical blade 24 is fixedly connected with the baffle 20, the other end of the elastic helical blade 24 is fixedly connected with the rotating disk 25, the opposite two sides of the inner edge of the elastic spiral blade 24 at the same position as the convex block 29 are respectively provided with a sliding sheet 31 along the axial direction at intervals, two groups of sliding sheets 31 are respectively arranged in the two groove bodies 23, therefore, the elastic helical blade 24 also rotates along with the rotating shaft B22, the material entering the cavity 11 is continuously conveyed by the elastic helical blade 24 from one end of the piston 6 in the cavity 11 to one end of the rotating disc 25, when the materials reach one end of the rotary disc 25 and can not be conveyed forwards any more, the continuously deposited materials flow out along the air outlet pipe 15, flow back to the cavity 11 along the inclined pipe 12 and the feeding pipe 9 and are continuously conveyed to one end of the rotary disc 25, and the esterified water, BDO and THF (side products) generated in the reaction are pumped to a recovery tank along the air outlet pipe 15 by a vacuum pump; after the polymerization is finished, the motor B19 is closed, the mixture is kept still for a while, after products in the feeding pipe 9, the inclined pipe 12 and the air outlet pipe 15 all flow back into the cavity 11, the valve A7, the valve C13, the valve D14 and the vacuum pump are closed, the valve E27 and the motor A3 are opened, the rotating shaft A4 starts to rotate to drive the gear 5 to rotate, the gear 5 rotates to drive the rack 1 engaged with the gear to slide towards the cavity 11, the sliding of the rack 1 drives the rotating shaft B22 to gradually extend out of the tank body 10 along the through hole B30, as the elastic spiral blade 24 is connected with the outer part of the rotating shaft B22 in a sliding manner, the baffle 20 fixed on the rotating shaft B22 presses the elastic spiral blade 24 to gradually tighten, the piston 6 slides towards the other end of the cavity 11 to scrape the products adhered to the side wall of the cavity 11, so that the products in the cavity 11 slowly flow out along the discharging pipe 26 until the plurality, and then the motor A3 is controlled to rotate reversely, so that the rotating shaft A4 rotates reversely, the rack 1 is gradually withdrawn from the cavity 11, and new reaction materials can be injected again to carry out new reaction until the piston 6 is withdrawn to one end of the cavity 11.
The present invention is not described in detail in the prior art.
Claims (10)
1. A horizontal tackifying reactor for preparing PBT is characterized in that: comprises a tank body (10), the tank body (10) is of a horizontal structure, a cavity (11) with two open ends is arranged in the tank body (10), a piston (6) is connected with one end of the cavity (11) in a sliding way, a perforation A (28) is arranged at the central part of the piston (6), a rotary disc (25) is connected with the other end of the cavity (11) in a rotating way, a perforation B (30) is arranged at the central part of the rotary disc (25), two convex blocks (29) are oppositely arranged on the side wall of the perforation B (30), a motor B (19) is arranged at one end of the tank body (10), a baffle plate (20) is fixedly connected on a rotary shaft B (22) arranged in the cavity (11) along the perforation A (28) and then extends out of the other end of the tank body (10) along the perforation B (30), a baffle plate (20) is fixedly connected on the rotary shaft B (22) arranged at one side of the piston (6) in the cavity (11), and two tank bodies (23) are oppositely arranged on the outer edge surface of the rotary shaft B (22, the opposite two sides of the inner edge surface of the through hole B (30) are respectively provided with a convex block (29), the two convex blocks (29) are respectively arranged in the two groove bodies (23), the elastic spiral blade (24) is connected to the outer part of the rotating shaft B (22) in a sliding way, the outer edge of the elastic spiral blade (24) is in clearance fit with the side wall of the cavity body (11), one end of the elastic spiral blade (24) is fixedly connected with the baffle piece (20), the other end of the elastic spiral blade (24) is fixedly connected with the rotating disc (25), the opposite two sides of the inner edge of the elastic spiral blade (24) at the same position with the convex blocks (29) are respectively provided with sliding pieces (31) along the axial direction at intervals, the two groups of sliding pieces (31) are respectively arranged in the two groove bodies (23), one end of the motor B (19) back to the rotating shaft B (22) is provided with a rack (1), the rack (1) is provided with teeth (2) at intervals, a gear (5), gear (5) and runner (16) centre gripping rack (1), tooth (2) and gear (5) meshing, be equipped with inlet pipe (9) that link up cavity (11) in the one end that jar body (10) top is close to piston (6), be equipped with outlet duct (15) that link up cavity (11) in the one end that jar body (10) top is close to carousel (25), be equipped with discharging pipe (26) that link up cavity (11) in the one end that jar body (10) bottom is close to carousel (25), be equipped with inlet pipe (9) one end bottom outlet duct (15) one end high pipe chute 12 between inlet pipe (9) and outlet duct (15).
2. The horizontal tackifying reactor for preparing PBT of claim 1, wherein: a valve A (7) is arranged on the feeding pipe (9) between the inclined pipe 12 and the tank body (10).
3. The horizontal tackifying reactor for preparing PBT of claim 1, wherein: a valve B (8) is arranged on the feeding pipe (9) above the junction of the inclined pipe (12) and the feeding pipe (9).
4. The horizontal tackifying reactor for preparing PBT of claim 1, wherein: a valve C (13) is arranged on an air outlet pipe (15) between the inclined pipe 12 and the tank body (10).
5. The horizontal tackifying reactor for preparing PBT of claim 1, wherein: a valve D (14) is arranged on the air outlet pipe (15) above the intersection of the inclined pipe (12) and the air outlet pipe (15).
6. The horizontal tackifying reactor for preparing PBT of claim 1, wherein: a valve E (27) is provided on the discharge pipe (26).
7. The horizontal tackifying reactor for preparing PBT of claim 1, wherein: a support (21) is arranged at the bottom of the tank body (10), an L-shaped support rod (18) is arranged between the support (21) and the motor A (3), and the rotating wheel (16) is arranged on the L-shaped support rod (18) through a wheel shaft (17).
8. The horizontal tackifying reactor for preparing PBT of claim 1, wherein: an annular groove (32) is arranged on the side wall of the other end of the cavity (11), a raised ring (33) is arranged on the outer edge surface of the rotating disc (25), and the raised ring (33) is arranged in the annular groove (32).
9. The horizontal tackifying reactor for preparing PBT of claim 1, wherein: the rotating shaft B (22) is concentric with the piston (6), the rotating shaft B (22) can rotate in the through hole A (28), and the rotating shaft B (22) is concentric with the rotating disc (25).
10. The horizontal tackifying reactor for preparing PBT of claim 1, wherein: an electric heating wire (34) is embedded in the wall of the tank body (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110299734.4A CN113000002A (en) | 2021-03-22 | 2021-03-22 | Horizontal tackifying reactor for preparing PBT |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110299734.4A CN113000002A (en) | 2021-03-22 | 2021-03-22 | Horizontal tackifying reactor for preparing PBT |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113000002A true CN113000002A (en) | 2021-06-22 |
Family
ID=76403835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110299734.4A Pending CN113000002A (en) | 2021-03-22 | 2021-03-22 | Horizontal tackifying reactor for preparing PBT |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113000002A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101091901A (en) * | 2007-04-13 | 2007-12-26 | 青岛伊科思新材料股份有限公司 | Helix stirred reactor with cryogen gong through inside, application, and technical method of polyreaction |
| CN101584971A (en) * | 2003-12-30 | 2009-11-25 | 株式会社千田工程 | Curing agent supply device and proportion adjusting device |
| CN103623764A (en) * | 2013-12-06 | 2014-03-12 | 浙江长江搅拌设备有限公司 | Horizontal reactor suitable for fluid with ultrahigh viscosity |
| CN204783558U (en) * | 2015-06-30 | 2015-11-18 | 安徽寅时压缩机制造有限公司 | Spiral fuel tap of scraping of compressor |
| CN207090354U (en) * | 2017-07-14 | 2018-03-13 | 扬州起航机械有限公司 | A kind of screw feeder |
| CN107913660A (en) * | 2017-12-01 | 2018-04-17 | 浙江龙鑫化工有限公司 | A kind of unsaturated polyester resin production equipment |
| JP2018150453A (en) * | 2017-03-13 | 2018-09-27 | 三菱ケミカル株式会社 | Manufacturing method of polybutylene succinate |
| CN110938199A (en) * | 2019-12-08 | 2020-03-31 | 无锡市兴盛新材料科技有限公司 | Production process of PBT (polybutylene terephthalate) slices |
| CN212017822U (en) * | 2020-04-10 | 2020-11-27 | 莱芜富新纤维制品有限公司 | PET thick liquids increase viscosity cauldron |
-
2021
- 2021-03-22 CN CN202110299734.4A patent/CN113000002A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101584971A (en) * | 2003-12-30 | 2009-11-25 | 株式会社千田工程 | Curing agent supply device and proportion adjusting device |
| CN101091901A (en) * | 2007-04-13 | 2007-12-26 | 青岛伊科思新材料股份有限公司 | Helix stirred reactor with cryogen gong through inside, application, and technical method of polyreaction |
| CN103623764A (en) * | 2013-12-06 | 2014-03-12 | 浙江长江搅拌设备有限公司 | Horizontal reactor suitable for fluid with ultrahigh viscosity |
| CN204783558U (en) * | 2015-06-30 | 2015-11-18 | 安徽寅时压缩机制造有限公司 | Spiral fuel tap of scraping of compressor |
| JP2018150453A (en) * | 2017-03-13 | 2018-09-27 | 三菱ケミカル株式会社 | Manufacturing method of polybutylene succinate |
| CN207090354U (en) * | 2017-07-14 | 2018-03-13 | 扬州起航机械有限公司 | A kind of screw feeder |
| CN107913660A (en) * | 2017-12-01 | 2018-04-17 | 浙江龙鑫化工有限公司 | A kind of unsaturated polyester resin production equipment |
| CN110938199A (en) * | 2019-12-08 | 2020-03-31 | 无锡市兴盛新材料科技有限公司 | Production process of PBT (polybutylene terephthalate) slices |
| CN212017822U (en) * | 2020-04-10 | 2020-11-27 | 莱芜富新纤维制品有限公司 | PET thick liquids increase viscosity cauldron |
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