CN111036102A - Polyester modified monomer heating and melting device - Google Patents
Polyester modified monomer heating and melting device Download PDFInfo
- Publication number
- CN111036102A CN111036102A CN202010050906.XA CN202010050906A CN111036102A CN 111036102 A CN111036102 A CN 111036102A CN 202010050906 A CN202010050906 A CN 202010050906A CN 111036102 A CN111036102 A CN 111036102A
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- heating
- pipeline
- tank body
- tank
- valve
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F21/00—Dissolving
- B01F21/10—Dissolving using driven stirrers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/90—Heating or cooling systems
- B01F35/92—Heating or cooling systems for heating the outside of the receptacle, e.g. heated jackets or burners
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/90—Heating or cooling systems
- B01F2035/99—Heating
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polymerisation Methods In General (AREA)
- Accessories For Mixers (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
A polyester modified monomer heating and melting device is characterized in that a driving system is arranged above a heating tank, and a stirrer is arranged at the lower part of the driving system; the device comprises a tank body, a temperature sensor, an electric valve, a pipeline, a screw pump, a check valve, a heating half pipe, a signal feedback device, a temperature sensor and an electric control valve, wherein the heating half pipe and the electric control valve are arranged outside the tank body and used for adjusting the steam quantity in the half pipe; one side at the jar body is equipped with the ethylene glycol filling opening, and the ethylene glycol filling opening has the pipeline to be linked together with the ethylene glycol storage tank, and it has valve and centrifugal pump to establish ties on the pipeline, realizes that the ethylene glycol in the storage tank pours into the heating tank into through the centrifugal pump. The polyester modified monomer weighing device is reasonable in structure, good in using effect, accurate in material weighing and convenient for subsequent processing, and the processing efficiency of the polyester modified monomer is improved.
Description
Technical Field
The invention relates to a device for producing polyester, in particular to a device for heating and melting polyester modified monomers.
Background
The main raw materials for conventional polyester production are terephthalic acid (PTA), which is a powdery substance, and Ethylene Glycol (EG), which is a liquid substance; at present, the two are prepared into slurry in a pulping kettle in a physical blending mode in the production process, and then the slurry is sent into an esterification kettle for esterification reaction. With the development of technology, modified polyesters based on conventional polyesters are more and more, and the copolymerization modification method generally adds some modifying monomers during polymerization, but some alcohol modifying monomers are flaky, waxy or blocky solids, and are difficult to stir and disperse when added into a pulping kettle, and are difficult to weigh and feed. Such as pentaerythritol, neopentyl glycol, CHDM, and the like. This brings more inconvenience to the processing and affects the processing efficiency.
Disclosure of Invention
The invention aims to provide a polyester modified monomer heating and melting device which is more convenient to feed and higher in efficiency.
The technical scheme of the invention is that a polyester modified monomer heating and melting device comprises a heating tank, and is characterized in that: a motor and a matched speed reducer are arranged above the heating tank, and the lower part of the shaft of the speed reducer is fixedly connected with a stirrer; a feeding port is arranged at the upper part of the tank body; a heating half pipe is welded outside the tank body, steam is introduced into an inlet at the upper end of the half pipe, an electric control valve is arranged on a steam inlet and used for adjusting the steam quantity in the half pipe, a temperature sensor and a signal feedback device are arranged in the tank body, the sensor and an electric valve form an automatic adjusting system, the opening of the electric control valve is automatically controlled according to the set temperature to adjust the steam quantity, and then the automatic control of the temperature of the tank body is realized; the lower part of the tank body is provided with a discharge port communicated with a pipeline (the pipeline is communicated with the pulping kettle), the bottom of the tank body is provided with a liquid discharging port, the liquid discharging port is provided with a pipeline and the pipeline is communicated back to the heating tank, the pipeline is provided with a screw pump and a check valve, and the materials are returned to the tank body through the pipeline and the screw pump, so that the materials are refluxed and uniformly mixed; a glycol filling opening is formed in one side of the tank body, a pipeline is arranged at the inlet of the glycol filling opening and communicated with a glycol storage tank, and a valve and a centrifugal pump are connected in series on the pipeline, so that glycol in the storage tank is injected into the heating tank through the centrifugal pump; an overflow port is arranged at the position, close to the upper part, of the tank body, an overflow pipe is communicated with the outside of the overflow port, the overflow pipe is communicated back to the ethylene glycol storage tank, and the ethylene glycol in the tank body can not overflow the tank body under the condition of ensuring misoperation.
An electric hoist and a traveling crane sliding rail matched with the electric hoist are arranged above the feeding port.
The invention has reasonable structure and good use effect, can efficiently and quickly add some alcohol modified monomers such as flaky, waxy or blocky solids into the pulping kettle, can quickly stir and disperse in the kettle body, is accurate in weighing and convenient for subsequent processing, and improves the processing efficiency of the polyester modified monomers.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
The embodiments are described in detail with reference to the accompanying drawings:
a polyester modified monomer heating and melting device comprises a heating tank 1, wherein a motor 3 and a matched speed reducer 5 are arranged above the heating tank, and the lower part of a shaft of the speed reducer is fixedly connected with a stirrer 4 which is of a U-shaped frame structure; a feeding port 2 is arranged at the upper part of the tank body; a heating half pipe 6 is welded outside the tank body, steam is introduced into an inlet at the upper end of the half pipe, an electric regulating valve 7 is arranged on a steam inlet and used for regulating the steam quantity in the half pipe, a temperature sensor 8 and a signal feedback device are arranged in the tank body, the sensor and the electric regulating valve jointly form an automatic regulating system which is controlled by a set PLC, so that the steam quantity can be regulated by automatically controlling the opening of the electric regulating valve according to the set temperature, and the automatic control of the temperature of the tank body is further realized; the lower part of the tank body is provided with a discharge port 9 communicated with a pipeline 10 (the pipeline leads to the pulping kettle), the bottom of the tank body is provided with a lower liquid port 11 which is provided with a pipeline and is communicated back to the heating tank, the pipeline is provided with a screw pump 12 and a check valve 13, and the materials return to the tank body through the pipeline and the screw pump, so that the materials are uniformly mixed; a glycol filling opening 14 is arranged on one side of the tank body, a pipeline is arranged at the inlet of the glycol filling opening, the pipeline is communicated with a glycol storage tank 15, and a valve 16 and a centrifugal pump 17 are connected in series on the pipeline, so that glycol in the storage tank is injected into the heating tank through the centrifugal pump; an overflow port 18 is arranged at the position close to the tank body, an overflow pipe is communicated outside the overflow port, and the overflow pipe is communicated back to the ethylene glycol storage tank, so that the ethylene glycol in the tank body can not overflow the tank body under the condition of misoperation.
In this embodiment, an electric block 19 and a traveling rail 20 matched with the electric block are arranged above the feeding port, so that the tank body can be conveniently fed.
The invention is designed by utilizing the principle that the alcohol modified monomers are similar to and compatible with ethylene glycol and combining the attached drawings. The design structure of the invention is that a certain amount of EG is firstly introduced into a tank, after steam is used for heating, solid alcohol modified monomer is put into a heating tank, and the monomer is dissolved in heated Ethylene Glycol (EG), so that the solid modified monomer is changed into liquid solution, the transportation and the metering are convenient, and the modified monomer is dispersed more uniformly in a pulping kettle. The modified monomer can be uniformly, continuously and accurately conveyed to the pulping kettle for pulping.
According to the invention, EG is pumped into a heating tank from a storage tank by using a centrifugal pump, the opening of an electric control valve is controlled by setting the heating temperature, and the EG is heated to a certain temperature; and then the modified monomer is put into a switch from a feeding funnel on the heating tank by using a feeding electric hoist. And starting the stirring device to accelerate the dissolution of the modified monomer in EG.
A mass flow meter is arranged on an outlet pipeline of the centrifugal pump and used for accurately measuring the weight of EG used for dissolving the modified monomer; in order to avoid misoperation, too much EG is thrown into the heating tank, an overflow tank is designed at the top of the heating tank, and the too much EG flows back to the EG storage tank from the overflow pipe.
In order to ensure the uniformity of the solution, a reflux system is designed at the bottom of the heating tank, the solution in the kettle is pumped out by a screw pump and then is pumped into the tank from the upper part of the heating tank, and the reflux system is always opened in the whole dissolving process.
A stainless steel steam heating half pipe with the pipe diameter DN65 is welded outside the heating tank body, and 8 circles of spiral tank body welding is performed;
the steam pipeline is a carbon steel seamless steel pipe with the pipe diameter DN50, and heating steam enters from the upper pipe orifice of the half pipe and exits from the lower pipe orifice. A DN50 steam electric regulating valve is arranged on the steam inlet pipeline and used for controlling the steam quantity entering the heating half-pipe and realizing the control of the temperature of the heating tank; the heating tank is provided with the temperature sensor, the temperature of the heating tank is set, and the opening of the electric control valve is controlled through temperature signal feedback, so that the automatic temperature control of the heating tank is realized.
In order to ensure the sufficiency of the modified monomer dissolution, a frame type stirring paddle is arranged in the heating tank and is used for assisting in dissolving the modified monomer;
the heating tank body is arranged above the pulping kettle, and after the modified monomer is fully and uniformly dissolved, the fully dissolved monomer solution can be directly sent into the pulping kettle by utilizing potential difference potential energy so as to be convenient for pulping.
The structure of the invention can realize that solid materials are manually weighed and then put into the heating tank according to different proportioning requirements, and then the solid materials are metered by the mass flow meter and then are put into the heating tank; after the materials are added into the heating tank, the steam regulating valve is opened to introduce steam into the heating half-pipe to heat the materials, and different temperatures are set according to different materials, for example, the temperature is adjusted to 80 ℃. And simultaneously, opening the stirring device, opening the screw pump, closing a pipeline valve leading to the pulping kettle, opening a return pipe to return the materials, opening the pipeline valve leading to the pulping kettle by the screw pump after half an hour, and delivering the mixed solution to the pulping kettle for pulping.
The above examples are merely illustrative for clarity and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. It is not necessary or necessary to exhaustively enumerate all embodiments herein, and obvious variations or modifications can be made without departing from the scope of the invention.
Claims (2)
1. The utility model provides a polyester modified monomer heating melting device, it includes the heating jar, its characterized in that: a motor and a matched speed reducer are arranged above the heating tank, and the lower part of the shaft of the speed reducer is fixedly connected with a stirrer; a feeding port is arranged at the upper part of the tank body; a heating half pipe is welded outside the tank body, steam is introduced into an inlet at the upper end of the half pipe, an electric control valve is arranged on a steam inlet and used for adjusting the steam quantity in the half pipe, a temperature sensor and a signal feedback device are arranged in the tank body, the sensor and an electric valve form an automatic adjusting system, the opening of the electric control valve is automatically controlled according to the set temperature to adjust the steam quantity, and then the automatic control of the temperature of the tank body is realized; the lower part of the tank body is provided with a discharge port communicated with a pipeline, the bottom of the tank body is provided with a liquid outlet, the liquid outlet is provided with a pipeline, the pipeline is communicated with the heating tank, the pipeline is provided with a screw pump and a check valve, and the screw pump and the pipeline are returned to the tank body to realize material backflow and further realize uniform mixing of the materials; a glycol filling opening is formed in one side of the tank body, a pipeline is arranged at the inlet of the glycol filling opening and communicated with a glycol storage tank, and a valve and a centrifugal pump are connected in series on the pipeline, so that glycol in the storage tank is injected into the heating tank through the centrifugal pump; an overflow port is arranged at the position close to the tank body, an overflow pipe is communicated with the outside of the overflow port, and the overflow pipe is communicated back to the ethylene glycol storage tank.
2. The apparatus for heating and melting polyester-modified monomer according to claim 1, wherein: an electric hoist and a traveling crane sliding rail matched with the electric hoist are arranged above the feeding port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010050906.XA CN111036102A (en) | 2020-01-17 | 2020-01-17 | Polyester modified monomer heating and melting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010050906.XA CN111036102A (en) | 2020-01-17 | 2020-01-17 | Polyester modified monomer heating and melting device |
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| Publication Number | Publication Date |
|---|---|
| CN111036102A true CN111036102A (en) | 2020-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010050906.XA Pending CN111036102A (en) | 2020-01-17 | 2020-01-17 | Polyester modified monomer heating and melting device |
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| CN (1) | CN111036102A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101391904A (en) * | 2008-10-24 | 2009-03-25 | 江苏阿波罗复合肥有限公司 | Urea melting apparatus |
| CN203253407U (en) * | 2013-05-28 | 2013-10-30 | 上虞盛晖化工股份有限公司 | Solid and liquid mixing apparatus for hydrogenation preparation of 1,4-cyclohexanedimethanol |
| CN203683736U (en) * | 2014-01-22 | 2014-07-02 | 淮安锦纶化纤有限公司 | Fusing and melting system capable of continuously conducting feeding |
| CN205965545U (en) * | 2016-08-26 | 2017-02-22 | 内蒙古双欣环保材料股份有限公司 | Throw material device in manufacturing of PVA fibre |
| JP2018035401A (en) * | 2016-08-31 | 2018-03-08 | 住友金属鉱山株式会社 | Stir fusing device |
| CN209005679U (en) * | 2019-04-16 | 2019-06-21 | 江苏乐圣环保装备制造有限公司 | A kind of return stirring device |
-
2020
- 2020-01-17 CN CN202010050906.XA patent/CN111036102A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101391904A (en) * | 2008-10-24 | 2009-03-25 | 江苏阿波罗复合肥有限公司 | Urea melting apparatus |
| CN203253407U (en) * | 2013-05-28 | 2013-10-30 | 上虞盛晖化工股份有限公司 | Solid and liquid mixing apparatus for hydrogenation preparation of 1,4-cyclohexanedimethanol |
| CN203683736U (en) * | 2014-01-22 | 2014-07-02 | 淮安锦纶化纤有限公司 | Fusing and melting system capable of continuously conducting feeding |
| CN205965545U (en) * | 2016-08-26 | 2017-02-22 | 内蒙古双欣环保材料股份有限公司 | Throw material device in manufacturing of PVA fibre |
| JP2018035401A (en) * | 2016-08-31 | 2018-03-08 | 住友金属鉱山株式会社 | Stir fusing device |
| CN209005679U (en) * | 2019-04-16 | 2019-06-21 | 江苏乐圣环保装备制造有限公司 | A kind of return stirring device |
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| CB02 | Change of applicant information |
Address after: No.2, north section of Liuhui Avenue, Changyuan City, Xinxiang City, Henan Province Applicant after: Henan Yuanhong polymer new materials Co., Ltd Address before: 453400 anti corrosion and new material industrial park, Changyuan City, Xinxiang City, Henan Province Applicant before: CHANGYUAN YUANHONG PACKAGING NEW MATERIAL Co.,Ltd. |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200421 |
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| WD01 | Invention patent application deemed withdrawn after publication |