CN213118482U - PTA slurry conveying system - Google Patents
PTA slurry conveying system Download PDFInfo
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- CN213118482U CN213118482U CN202021836501.0U CN202021836501U CN213118482U CN 213118482 U CN213118482 U CN 213118482U CN 202021836501 U CN202021836501 U CN 202021836501U CN 213118482 U CN213118482 U CN 213118482U
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Abstract
A PTA slurry conveying system comprises a slurry preparation tank, a rotary valve, a PTA device finished product bin, an EG conveying pipeline, an EG storage tank, a slurry conveying pump, a discharge control valve, a liquid conveying pipeline, a slurry supply tank and a slurry backflow control valve; the powder inlet of the slurry preparation tank is correspondingly communicated with the discharge hole of a finished product bin of the PTA device through a rotary valve, the liquid inlet of the slurry preparation tank is correspondingly communicated with an EG storage tank through an EG conveying pipeline, the bottom of the slurry preparation tank is provided with a discharge pipe, the liquid outlet end of the discharge pipe is correspondingly communicated with the liquid inlet end of a discharge control valve through a slurry conveying pump, and the liquid outlet end of the discharge control valve is correspondingly communicated with a slurry supply tank through a liquid conveying pipeline; the top of the side surface of the slurry preparation tank is correspondingly communicated with the liquid outlet end of the slurry return pipe, and the liquid inlet end of the slurry return pipe is correspondingly communicated with the pipe body of the liquid conveying pipeline through a slurry return control valve; and the conveying system has the advantages of saving energy and reducing nitrogen consumption.
Description
Technical Field
The utility model belongs to the technical field of the PTA powder transport technique and specifically relates to a PTA thick liquids conveying system is related to.
Background
As is known, after being produced, the PTA powder is conveyed to a finished product bin of a PTA device for storage, then conveyed to a large bin through a conveying system, then conveyed to a day bin through the conveying system, and then conveyed to a slurry feeding tank to be mixed with EG for preparation, and then the prepared slurry is output to a slurry supply tank, and finally conveyed to a reaction kettle for polyester reaction; the traditional conveying system is characterized in that a fan is used as a conveying power source, nitrogen is used as a conveying carrier of PTA powder, a pipeline is used as a conveying channel, namely a powder conveying system, and nitrogen is blown into the pipeline by the fan to realize the transportation of the PTA powder; therefore, in view of the above, there is a need in the market for a delivery system that can save energy and reduce nitrogen consumption.
Disclosure of Invention
In order to overcome the deficiency in the background art, the utility model discloses a PTA slurry conveying system.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a PTA slurry conveying system comprises a slurry preparation tank, a rotary valve, a PTA device finished product bin, an EG conveying pipeline, an EG storage tank, a slurry conveying pump, a discharge control valve, a liquid conveying pipeline, a slurry supply tank and a slurry backflow control valve; the powder inlet of the slurry preparation tank is correspondingly communicated with the discharge hole of a finished product bin of the PTA device through a rotary valve, the liquid inlet of the slurry preparation tank is correspondingly communicated with an EG storage tank through an EG conveying pipeline, the bottom of the slurry preparation tank is provided with a discharge pipe, the liquid outlet end of the discharge pipe is correspondingly communicated with the liquid inlet end of a discharge control valve through a slurry conveying pump, and the liquid outlet end of the discharge control valve is correspondingly communicated with a slurry supply tank through a liquid conveying pipeline; the top of the side surface of the slurry preparation tank is correspondingly communicated with the liquid outlet end of the slurry return pipe, and the liquid inlet end of the slurry return pipe is correspondingly communicated with the pipe body of the liquid conveying pipeline through a slurry return control valve;
preferably, a slurry density sensor is arranged between the slurry delivery pump and the discharge control valve;
preferably, the pipe body of the conveying pipeline is correspondingly communicated with the fresh EG pipeline through a flushing valve;
preferably, the infusion line is provided with a plurality of pressure sensors;
preferably, the slurry conveying system and the powder conveying system are correspondingly connected in parallel.
Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:
the utility model discloses a PTA thick liquids conveying system can stir the mixture earlier PTA powder and EG through thick liquids preparation jar to make the PTA thick liquids, then utilize thick liquids delivery pump to carry the PTA thick liquids, compare in wind-force and carry, can practice thrift a large amount of energy, and saved the use of nitrogen gas, thereby effectively reduce the manufacturing cost of PTA.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is another schematic structural diagram of the present invention.
In the figure: 1. a slurry preparation tank; 1.1, a discharge pipe; 1.2, a slurry return pipe; 2. rotating the valve; 3. a finished product bin of the PTA device; 4. an EG delivery pipeline; 5. an EG storage tank; 6. a slurry delivery pump; 7. a discharge control valve; 8. a fluid delivery line; 9. a slurry supply tank; 10. a slurry return control valve; 11. a slurry density sensor; 12. a flush valve; 13. fresh EG pipeline.
Detailed Description
The invention will be explained in more detail by the following examples, which disclose the invention and are intended to protect all technical improvements within the scope of the invention.
The PTA slurry conveying system described with reference to fig. 1 comprises a slurry preparation tank 1, a rotary valve 2, a PTA device finished product bin 3, an EG conveying pipeline 4, an EG storage tank 5, a slurry conveying pump 6, a discharge control valve 7, a liquid conveying pipeline 8, a slurry supply tank 9, and a slurry backflow control valve 10; the powder inlet of the slurry preparation tank 1 is correspondingly communicated with the discharge hole of a finished product bin 3 of a PTA device through a rotary valve 2, the liquid inlet of the slurry preparation tank 1 is correspondingly communicated with an EG storage tank 5 through an EG conveying pipeline 4, and the slurry preparation tank 1 has a stirring function, so that PTA powder and EG can be directly stirred and mixed in the slurry preparation tank 1 to prepare PTA slurry, the slurry preparation tank 1 also has a liquid level monitoring function, the liquid level height of liquid in the tank can be monitored, the situation that excessive slurry exists in the tank is prevented, and circulating EG used in polyester reaction is stored in the EG storage tank 5;
the bottom surface of the slurry preparation tank 1 is provided with a discharge pipe 1.1, the liquid outlet end of the discharge pipe 1.1 is correspondingly communicated with the liquid inlet end of a discharge control valve 7 through a slurry conveying pump 6, and a slurry density sensor 11 is arranged between the slurry conveying pump 6 and the discharge control valve 7 according to requirements; the liquid outlet end of the discharge control valve 7 is correspondingly communicated with a slurry supply tank 9 through a transfusion pipeline 8, and a discharge pipe 1.1 is used for normally outputting slurry; the top of the side surface of the slurry preparation tank 1 is correspondingly communicated with the outlet end of a slurry return pipe 1.2, the liquid inlet end of the slurry return pipe 1.2 is correspondingly communicated with the pipe body of a liquid conveying pipeline 8 through a slurry return control valve 10, the slurry return pipe 1.2 can enable slurry in the liquid conveying pipeline 8 to return to the slurry preparation tank 1, the valve opening of the slurry return control valve 10 is adjusted according to the pressure which can be borne by a slurry supply tank 9, and the slurry return speed can be adjusted;
in addition, the infusion pipeline 8 is provided with a plurality of pressure sensors, the pipe body of the conveying pipeline is correspondingly communicated with the fresh EG pipeline 13 through the flushing valve 12, the pressure of slurry in the pipe is detected through the pressure sensors, whether slurry blockage occurs in the pipe is judged, if the blockage occurs in the pipe, the flushing valve 12 is controlled to be opened, EG liquid in the fresh EG pipeline 13 is used for flushing the conveying pipeline 8, the blocked part is flushed, and the slurry conveying state of the conveying pipeline 8 is recovered; according to the requirement, the slurry conveying system and the powder conveying system are correspondingly connected in parallel, and when the slurry conveying system cannot normally operate due to reasons, the slurry conveying system can be switched to the powder conveying system, so that the normal operation of polyester production is ensured.
When the PTA slurry conveying system is implemented, firstly, the PTA powder in the finished product bin 3 of the PTA device is input into the slurry preparation tank 1 through the rotary valve 2, and the EG conveying pipeline 4 conveys EG liquid into the slurry preparation tank 1, then the PTA powder and EG are stirred and mixed in the slurry preparation tank 1 to form PTA slurry, and the slurry is conveyed into the slurry supply tank 9 through the slurry conveying pump 6 along the discharge pipe 1.1 and the conveying pipeline 8; in addition, the slurry return pipe 1.2 can play a role in returning, when the pressure of the slurry in the liquid conveying pipeline 8 is too high, the slurry flows back into the liquid preparation tank 1 through the slurry return pipe 1.2, and the effect of reducing the pressure of the slurry in the liquid conveying pipeline 8 is achieved.
The part of the utility model not detailed is prior art.
Claims (5)
1. A PTA thick liquids conveying system, characterized by: comprises a slurry preparation tank (1), a rotary valve (2), a PTA device finished product bin (3), an EG conveying pipeline (4), an EG storage tank (5), a slurry conveying pump (6), a discharge control valve (7), a liquid conveying pipeline (8), a slurry supply tank (9) and a slurry backflow control valve (10); the powder inlet of the slurry preparation tank (1) is correspondingly communicated with the discharge hole of a finished product bin (3) of the PTA device through a rotary valve (2), the liquid inlet of the slurry preparation tank (1) is correspondingly communicated with an EG storage tank (5) through an EG conveying pipeline (4), the bottom of the slurry preparation tank (1) is provided with a discharge pipe (1.1), the liquid outlet end of the discharge pipe (1.1) is correspondingly communicated with the liquid inlet end of a discharge control valve (7) through a slurry conveying pump (6), and the liquid outlet end of the discharge control valve (7) is correspondingly communicated with a slurry supply tank (9) through a liquid conveying pipeline (8); the top of the side surface of the slurry preparation tank (1) is correspondingly communicated with the liquid outlet end of the slurry return pipe (1.2), and the liquid inlet end of the slurry return pipe (1.2) is correspondingly communicated with the pipe body of the liquid conveying pipeline (8) through a slurry return control valve (10).
2. The PTA slurry transport system of claim 1, wherein: and a slurry density sensor (11) is arranged between the slurry delivery pump (6) and the discharge control valve (7).
3. The PTA slurry transport system of claim 1, wherein: the pipe body of the infusion pipeline (8) is correspondingly communicated with the fresh EG pipeline (13) through a flushing valve (12).
4. The PTA slurry delivery system of claim 3, wherein: the infusion line (8) is provided with a plurality of pressure sensors.
5. The PTA slurry transport system of claim 1, wherein: the slurry conveying system and the powder conveying system are correspondingly connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021836501.0U CN213118482U (en) | 2020-08-28 | 2020-08-28 | PTA slurry conveying system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021836501.0U CN213118482U (en) | 2020-08-28 | 2020-08-28 | PTA slurry conveying system |
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| CN213118482U true CN213118482U (en) | 2021-05-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115434177A (en) * | 2021-06-04 | 2022-12-06 | 安德里茨（中国）有限公司 | Conveying system and multi-disc thickener |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115434177A (en) * | 2021-06-04 | 2022-12-06 | 安德里茨（中国）有限公司 | Conveying system and multi-disc thickener |
| CN115434177B (en) * | 2021-06-04 | 2024-04-16 | 安德里茨（中国）有限公司 | Conveying system and multi-disc thickener |
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