CN203291829U - Feeding device of esterification reaction still - Google Patents

Feeding device of esterification reaction still Download PDF

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Publication number
CN203291829U
CN203291829U CN2013203123911U CN201320312391U CN203291829U CN 203291829 U CN203291829 U CN 203291829U CN 2013203123911 U CN2013203123911 U CN 2013203123911U CN 201320312391 U CN201320312391 U CN 201320312391U CN 203291829 U CN203291829 U CN 203291829U
Authority
CN
China
Prior art keywords
cylinder
machine barrel
threaded rod
feeding
screw rod
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.)
Withdrawn - After Issue
Application number
CN2013203123911U
Other languages
Chinese (zh)
Inventor
蒋云
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhangjiagang Baotian New Material Science & Technology Co Ltd
Original Assignee
Zhangjiagang Baotian New Material Science & Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhangjiagang Baotian New Material Science & Technology Co Ltd filed Critical Zhangjiagang Baotian New Material Science & Technology Co Ltd
Priority to CN2013203123911U priority Critical patent/CN203291829U/en
Application granted granted Critical
Publication of CN203291829U publication Critical patent/CN203291829U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a feeding device of an esterification reaction still. The feeding device comprises a cylinder, wherein a feeding hopper is arranged at one end of the cylinder; the bottom of the feeding hopper is connected with the cylinder; a PET (polyethylene terephthalate) bottle sheet feeding port is formed in the upper part of the feeding port; an alcohol feeding pipe is arranged at the side part of the feeding hopper; a discharging port is formed in the other end of the cylinder; a threaded rod is arranged in the cylinder; a threaded rod driving device is arranged outside the cylinder; a heating device is arranged on the wall of the cylinder; the threaded rod adopts a hollow structure; and a circulating heating medium is arranged in the threaded rod. According to the feeding device of the esterification reaction still, the threaded rod is changed into a hollow structure; and the circulating heating medium is led into the threaded rod, so that the whole feeding device can perform external heating and internal heating, PET bottle sheets can be in a fused state in a shorter stroke, and subsequent production and the product quality are guaranteed.

Description

A kind of pay-off of reaction kettle of the esterification
Technical field
The utility model relates to the polyester production facility field, refers to especially a kind of pay-off of reaction kettle of the esterification.
Background technology
In polyester production process, PET raw material and alcohol are admitted to together in reaction kettle of the esterification and carry out esterification, then, after preshrunk still and final minification still, obtain the PBT finished product.At present in polyester production process, usually at first by the PET heating raw materials to molten condition, and then join together in reaction kettle of the esterification with alcohol, at first alcohol and PET raw material carry out alcoholysis, and then carry out esterification, thereby cause whole process to need the long period, thereby reduced the efficiency of output.In order to overcome above-mentioned technical problem, our company adopts the mode of screw machine feeding, adopt the mode of Screw Extrusion, charging aperture is transformed into to PET bottle sheet and alcohol charging together, on the machine barrel barrel of screw rod, heater is set, can in machine barrel, not only realize the thawing of PET bottle sheet but also can realize in advance alcoholysis like this, shorten the time of alcoholysis in the reaction kettle of the esterification, improve the efficiency of output.But due to the limitation of equipment installation site, the length of screw rod is restricted, and causes PET bottle sheet in shorter stroke, can not be heated fully and reach molten condition, has affected follow-up production and the quality of product.
The utility model content
Technical problem to be solved in the utility model is: provide a kind of and can in shorter stroke, realize that PET bottle sheet reaches the pay-off of the reaction kettle of the esterification of molten condition.
For addressing the above problem, the technical solution adopted in the utility model is: a kind of pay-off of reaction kettle of the esterification, comprise a machine barrel, one end of machine barrel is provided with feed hopper, the bottom of feed hopper is connected with machine barrel, the top of feed hopper is PET bottle sheet feeding mouth, the sidepiece of feed hopper is provided with pure feed pipe, the other end of machine barrel is discharging opening, in machine barrel, be provided with screw rod, the machine barrel outer setting has spiro driving device, on the barrel of machine barrel, is provided with heater, described screw rod is hollow structure, in screw rod, is provided with the heating agent of circulation.
One end of described screw rod is provided with heating agent import and heating agent outlet.
Described spiro driving device is motor.
Described heater is the electric heating sheets that is arranged on the barrel of machine barrel.
The beneficial effects of the utility model are: the pay-off of above-mentioned pet reaction still, its screw rod changes hollow structure into, and in the inside of screw rod, pass into the heating agent of circulation, thereby make whole pay-off have external heat and interior heating concurrently, thereby can in shorter stroke, realize that PET bottle sheet reaches molten condition, guarantee follow-up production and the quality of product.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure: 1, machine barrel, 2, feed hopper, 3, PET bottle sheet feeding mouth, 4, pure feed pipe, 5, discharging opening, 6, screw rod, 7, motor, 8, electric heating sheets, 9, the heating agent import, 10, the heating agent outlet, 11, heating agent.
The specific embodiment
Below by the pay-off of specific embodiment to a kind of reaction kettle of the esterification described in the utility model, be described in further detail.
as shown in Figure 1, the pay-off of reaction kettle of the esterification, comprise a machine barrel 1, one end of machine barrel 1 is provided with feed hopper 2, the bottom of feed hopper 2 is connected with machine barrel 1, the top of feed hopper 2 is PET bottle sheet feeding mouth 3, the sidepiece of feed hopper 2 is provided with pure feed pipe 4, the other end of machine barrel 1 is discharging opening 5, in machine barrel 1, be provided with screw rod 6, machine barrel 1 outer setting has spiro driving device, in the present embodiment, spiro driving device is motor 7, on the barrel of machine barrel 1, be provided with heater, in the present embodiment, described heater is the electric heating sheets 8 that is arranged on the barrel of machine barrel 1, described screw rod 6 is hollow structure, one end of screw rod 6 is provided with heating agent import 9 and heating agent outlet 10, in screw rod 6, be provided with the heating agent 11 of circulation.
The pay-off of above-mentioned reaction kettle of the esterification, during its work, PET bottle sheet is put into from PET bottle sheet feeding mouth 3, and simultaneously alcohol is sent into from pure feed pipe 4, PET bottle sheet is heating and melting under the double action of electric heating sheets 8 and heating agent 11, and is fed forward under the effect of machine barrel 1 inner screw 6, simultaneously with alcohol generation alcoholysis, thereby shortened the time of alcoholysis in the reaction kettle of the esterification, improved the efficiency of output.
The pay-off of above-mentioned pet reaction still, its screw rod changes hollow structure into, and in the inside of screw rod 6, pass into the heating agent 11 of circulation, thereby make whole pay-off have external heat and interior heating concurrently, thereby can in shorter stroke, realize that PET bottle sheet reaches molten condition, guarantee follow-up production and the quality of product.
The above embodiments are principle and the effect thereof of illustrative the invention only, and the embodiment of part utilization, but not be used to limiting the utility model; It should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the utility model creation design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.

Claims (4)

1. the pay-off of a reaction kettle of the esterification, comprise a machine barrel, an end of machine barrel is provided with feed hopper, and the bottom of feed hopper is connected with machine barrel, the top of feed hopper is PET bottle sheet feeding mouth, the sidepiece of feed hopper is provided with pure feed pipe, and the other end of machine barrel is discharging opening, in machine barrel, is provided with screw rod, the machine barrel outer setting has spiro driving device, on the barrel of machine barrel, be provided with heater, it is characterized in that: described screw rod is hollow structure, in screw rod, is provided with the heating agent of circulation.
2. the pay-off of reaction kettle of the esterification according to claim 1 is characterized in that: an end of described screw rod is provided with heating agent import and heating agent outlet.
3. the pay-off of reaction kettle of the esterification according to claim 1 and 2, it is characterized in that: described spiro driving device is motor.
4. the pay-off of reaction kettle of the esterification according to claim 1 and 2 is characterized in that: described heater is the electric heating sheets that is arranged on the barrel of machine barrel.
CN2013203123911U 2013-06-01 2013-06-01 Feeding device of esterification reaction still Withdrawn - After Issue CN203291829U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013203123911U CN203291829U (en) 2013-06-01 2013-06-01 Feeding device of esterification reaction still

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013203123911U CN203291829U (en) 2013-06-01 2013-06-01 Feeding device of esterification reaction still

Publications (1)

Publication Number Publication Date
CN203291829U true CN203291829U (en) 2013-11-20

Family

ID=49567869

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2013203123911U Withdrawn - After Issue CN203291829U (en) 2013-06-01 2013-06-01 Feeding device of esterification reaction still

Country Status (1)

Country Link
CN (1) CN203291829U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103285773A (en) * 2013-06-01 2013-09-11 张家港市宝田新型材料科技有限公司 Esterification reaction kettle feeding device
CN103935011A (en) * 2014-05-06 2014-07-23 湖州市千金宝云机械铸件有限公司 Internal-heating type plastic extruder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103285773A (en) * 2013-06-01 2013-09-11 张家港市宝田新型材料科技有限公司 Esterification reaction kettle feeding device
CN103935011A (en) * 2014-05-06 2014-07-23 湖州市千金宝云机械铸件有限公司 Internal-heating type plastic extruder

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C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20131120

Effective date of abandoning: 20150408

RGAV Abandon patent right to avoid regrant