CN1386688A - Pulse delivering and nitrogen gas recovering apparatus for terephthalic acid powder - Google Patents
Pulse delivering and nitrogen gas recovering apparatus for terephthalic acid powder Download PDFInfo
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- CN1386688A CN1386688A CN 02112323 CN02112323A CN1386688A CN 1386688 A CN1386688 A CN 1386688A CN 02112323 CN02112323 CN 02112323 CN 02112323 A CN02112323 A CN 02112323A CN 1386688 A CN1386688 A CN 1386688A
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- storage tank
- nitrogen
- valve
- electromagnetic valve
- jar
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 88
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 239000000843 powder Substances 0.000 title claims abstract description 16
- 229910001873 dinitrogen Inorganic materials 0.000 title claims abstract description 10
- 239000007789 gas Substances 0.000 claims abstract description 14
- 229910052757 nitrogen Inorganic materials 0.000 claims description 39
- 239000000428 dust Substances 0.000 claims description 15
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 8
- 230000001502 supplementing effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- 230000003068 static effect Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
An apparatus for conveying terephthalic acid powder in pulse mode and recovering nitrogen gas is composed of a pulse conveying system, a nitrogen gas recovering system, and a nitrogen gas supplementing system. It is characterized by that the material phase and gas phase are alternative. Its advantages are use of static-pressure pulses instead of dynatic-pressure one, low speed and resistance, and less consumption of nitrogen gas.
Description
Technical field
The present invention relates to a kind of device of in pipeline, carrying powder with air-flow.
Background technology
PTA (terephthalic acid) powder is the great a kind of raw material of consumption in the polyester engineering, and its slubbing technology is the top that powder is delivered to purpose feed bin in the polyester workshop.At present, nitrogen protection is all adopted in the conveying of domestic PTA powder, but mode of movement is a force feed, needs with more nitrogen powder to be delivered to the purpose feed bin.The mixture ratio of this force feed lower (generally below 10Kg material/Kg gas), so gas consumption is very big, energy consumption is big on the one hand, need use bigger separation and dusting equipment on the other hand.Because power plant adopts roots blower, and air pressure is low, system for content easily produces the tolerance overbalance simultaneously.It is even so, this that to have the feedway of more problem also almost all be import.
Summary of the invention
The objective of the invention is to design a kind of terephthalic acid powder pulse conveying and nitrogen gas recovering apparatus, adopt the close purpose feed bin that is transported to mutually of static pressure pulse, after material, gas separate, the recovery of nitrogen can solve the problem that exists in the background technology by compressor set and high-low pressure storage tank and tonifying Qi mode.
The technical solution used in the present invention is that it comprises:
1) pulse delivery system: comprise with compressed nitrogen source of the gas bonded assembly storage tank one tunnel receiving and sending jar through first reducing valve, first electromagnetic valve, another road second reducing valve connects second storage tank, storehouse first Pneumatic butterfly valve that feeds intake receives and sends jar, sends jar output and connects the purpose feed bin through the pneumatic ball valve and second storage tank through second electromagnetic valve;
2) nitrogen recycling system: comprise that the nitrogen in the purpose feed bin connects the 3rd storage tank through first dust exhaustor, second dust exhaustor, the nitrogen of the 3rd storage tank through second Pneumatic butterfly valve, compressor set, oxygen analyzer, connect first storage tank, be connected to the 3rd electromagnetic valve on first storage tank, send a jar exhaust and be connected between first dust exhaustor and second dust exhaustor through the 6th electromagnetic valve;
3) nitrogen air compensating system: comprise that a road of compressed nitrogen source of the gas connects the purpose feed bin through the 3rd reducing valve, the 4th electromagnetic valve, another Lu Jingdi four reducing valves, the 5th electromagnetic valve are connected between the 3rd storage tank and second Pneumatic butterfly valve.
Compressed nitrogen enters and sends in the jar, powder is pressed into converying feeding tube, air knife electromagnetic valve under control able to programme is with the certain frequency on-off action, the air knife (compressed nitrogen) that produces forms the bolt shape stream between the material gas phase in converying feeding tube, rely on the differential static pressure of expecting before and after the bolt to be fed forward to the purpose feed bin with pulse type; Nitrogen in the purpose feed bin separates laggard low pressure gasholder through material, gas, and the air extractor duct of low pressure gasholder links to each other with the admission port of compressor, and the compressed nitrogen entrance pressure that comes out from the compressor storage tank that contracts is stand-by; Tonifying Qi partly be the nitrogen of compressed nitrogen source of the gas divide two-way to replenish into native system is an airflow balance to keep, the one tunnel replenishes into purpose feed bin, the one tunnel replenishes into low pressure gasholder.
The useful effect that the present invention has is: it replaces dynamic pressure to carry with the static pressure pulse, and delivery speed reduction, transporting resistance are reduced; The consumption nitrogen amount is low, is about 50% of pressure sending type; Nitrogen reclaims by compressor set, solves putty and tolerance equilibrium problem in the delivery technology, adopts the production domesticization device, has both guaranteed the advance of technology and the reliability of equipment, reduces the equipment investment expense again significantly.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is an operating system panel layout of the present invention.
---electromagnetic valve JYF1～JYF4---reducing valve among the figure: DCF1～DCF6
QDF1～QDF2---Pneumatic butterfly valve QQF---pneumatic ball valve
YB1～YB4---pressure transformer Y1～Y4---compression indicator
The specific embodiment
As shown in Figure 1, terephthalic acid powder pulse conveying and nitrogen gas recovering apparatus comprise:
1) pulse delivery system: comprise with compressed nitrogen source of the gas bonded assembly storage tank V1 one tunnel receiving and sending jar 2 through the first reducing valve JYF1, the first electromagnetic valve DCF1, another road second reducing valve JYF2 meets the second storage tank V2, the storehouse 1 that feeds intake receives and sends jars 2 through the first Pneumatic butterfly valve QDF1, sends jar 2 outputs and connects purpose feed bin 3 through the pneumatic ball valve QQF and the second storage tank V2 through the second electromagnetic valve DCF2;
2) nitrogen recycling system: comprise that the nitrogen in the purpose feed bin 3 meets the 3rd storage tank V3 through the first dust exhaustor G1, the second dust exhaustor G2, the nitrogen of the 3rd storage tank V3 through the second Pneumatic butterfly valve QDF2, compressor set 4, oxygen analyzer 5, meet the first storage tank V1, be connected to the 3rd electromagnetic valve DCF3 on the first storage tank V1; Sending jar 2 exhaust A is connected between the first dust exhaustor G1 and the second dust exhaustor G2 through the 6th electromagnetic valve DCF6.
3) nitrogen air compensating system: comprise that a road of compressed nitrogen source of the gas connects purpose feed bin 3 through the 3rd reducing valve JYF3, the 4th electromagnetic valve DCF4, another Lu Jingdi four reducing valve JYF4, the 5th electromagnetic valve DCF5 are connected between the 3rd storage tank V3 and the second Pneumatic butterfly valve QDF2.
On the first storage tank V1, the 3rd storage tank V3, transmission jar 2, the purpose feed bin 3 the first pressure transformer YB1, the second pressure transformer YB2, the 3rd pressure transformer YB3, the 4th pressure transformer YB4 are housed respectively.
As shown in Figure 1, before delivery system is driven, carry out nitrogen replacement earlier, compressed nitrogen source of the gas (0.6MPa) advances storage tank V1, after the DCF3 emptying, after oxygen analyser 5 showed that nitrogen content reach requirement, the displacement stage finished, and enters delivery phase through circulation.The PTA powder that feeds intake in the storehouse is seted out through Pneumatic butterfly valve QDF1 and is sent jars 2, compressed nitrogen in the storage tank V1 is divided into two-way by reducing valve JYF2, reducing valve JYF1, electromagnetic valve DCF2 advance storage tank V2 respectively and send jar 2, send jar 2 interior powders and be pressed into converying feeding tube, air knife electromagnetic valve DCF2 under control able to programme is with the certain frequency on-off action, and the powder in the material pipe is cut into the bolt shape and is delivered to purpose feed bin 3.The nitrogen that advances purpose feed bin 3 advances storage tank V3 through dust exhaustor G1, dust exhaustor G2, one jar of material has sent a back jar interior nitrogen to advance storage tank V3 through electromagnetic valve DCF6, a dust exhaustor G2, by compressor set 4 compressions, it is standby that the compressed nitrogen that comes out advances storage tank V2 through Pneumatic butterfly valve QDF2 for the nitrogen of storage tank V3.In order to keep intrasystem nitrogen balance, be provided with the two-way tonifying Qi, one the tunnel carries out 3 tonifying Qi of purpose feed bin keeping pressure-fired in the purpose feed bin through reducing valve JYF3, electromagnetic valve DCF4, and one the tunnel carries out the nitrogen of system's tonifying Qi with the replenishment system loss through reducing valve JYF4, electromagnetic valve DCF5.
Pressure in transmission jar 2, storage tank V1, storage tank V3 and the purpose feed bin 3 are measured by four pressure transformer YB1～YB4 respectively, and the signal of pressure signal, the material level signal that sends jar and purpose feed bin and oxygen analyzer is controlled the on-off action of each electromagnetic valve, operated pneumatic valve by PLC.
Be operating system panel layout of the present invention as shown in Figure 2, the breadboard on control master panel top show carry and removal process in the state and the warning of each valve, the middle part is the digital display reconciliation statement, the bottom is hand, operates each button and switch automatically.
Claims (2)
1. terephthalic acid powder pulse conveying and nitrogen gas recovering apparatus is characterized in that it comprises:
1) pulse delivery system: comprise with compressed nitrogen source of the gas bonded assembly storage tank (V1) a tunnel receiving and sending jar (2) through first reducing valve (JYF1), first electromagnetic valve (DCF1), another road second reducing valve (JYF2) connects second storage tank (V2), the storehouse (1) that feeds intake receives and sends jar (2) through first Pneumatic butterfly valve (QDF1), sends jar (2) output and connects purpose feed bin (3) through pneumatic ball valve (QQF) and second storage tank (V2) through second electromagnetic valve (DCF2);
2) nitrogen recycling system: comprise that the nitrogen in the purpose feed bin (3) connects the 3rd storage tank (V3) through first dust exhaustor (G1), second dust exhaustor (G2), the nitrogen of the 3rd storage tank (V3) through second Pneumatic butterfly valve (QDF2), compressor set (4), oxygen analyzer (5), connect first storage tank (V1), be connected to the 3rd electromagnetic valve (DCF3) on first storage tank (V1), send jar (a 2) exhaust (A) and be connected between first dust exhaustor (G1) and second dust exhaustor (G2) through the 6th electromagnetic valve (DCF6);
3) nitrogen air compensating system: comprise that a road of compressed nitrogen source of the gas connects purpose feed bin (3) through the 3rd reducing valve (JYF3), the 4th electromagnetic valve (DCF4), another Lu Jingdi four reducing valves (JYF4), the 5th electromagnetic valve (DCF5) are connected between the 3rd storage tank (V3) and second Pneumatic butterfly valve (QDF2).
2. terephthalic acid powder pulse conveying according to claim 1 and nitrogen gas recovering apparatus is characterized in that: on first storage tank (V1), the 3rd storage tank (V3), transmission jar (2), the purpose feed bin (3) first pressure transformer (YB1), second pressure transformer (YB2), the 3rd pressure transformer (YB3), the 4th pressure transformer (YB4) are housed respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02112323 CN1386688A (en) | 2002-06-26 | 2002-06-26 | Pulse delivering and nitrogen gas recovering apparatus for terephthalic acid powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02112323 CN1386688A (en) | 2002-06-26 | 2002-06-26 | Pulse delivering and nitrogen gas recovering apparatus for terephthalic acid powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1386688A true CN1386688A (en) | 2002-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02112323 Pending CN1386688A (en) | 2002-06-26 | 2002-06-26 | Pulse delivering and nitrogen gas recovering apparatus for terephthalic acid powder |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101712414A (en) * | 2008-10-08 | 2010-05-26 | 兰州交通大学 | Aerodynamic force pipeline transport system |
| CN101792069A (en) * | 2010-04-12 | 2010-08-04 | 福建龙净环保股份有限公司 | Pneumatic conveyer |
| CN103159032A (en) * | 2013-02-21 | 2013-06-19 | 江苏浦士达环保科技有限公司 | Pneumatic conveying system |
| CN104401736A (en) * | 2014-10-20 | 2015-03-11 | 无锡红旗除尘设备有限公司 | Lead powder and nitrogen gas closed-cycle static-pressure dense-phase sectional boosting pneumatic conveying system |
| CN104401737A (en) * | 2014-10-20 | 2015-03-11 | 无锡红旗除尘设备有限公司 | Nitrogen closed suction type pneumatic conveying system for lead powder |
| CN104401738A (en) * | 2014-10-20 | 2015-03-11 | 无锡红旗除尘设备有限公司 | Nitrogen closed suction type pneumatic conveying method for lead powder |
| CN104444377A (en) * | 2014-10-20 | 2015-03-25 | 无锡红旗除尘设备有限公司 | Nitrogen closed-cycle static pressure dense-phase segmented boosting pneumatic conveying method for lead powder |
| CN107298309A (en) * | 2016-04-15 | 2017-10-27 | 江苏瑞美福实业有限公司 | A kind of polycaprolactam section pipe-line transportation system |
| CN108163551A (en) * | 2017-12-08 | 2018-06-15 | 北京神雾电力科技有限公司 | Low order fine coal air-transport system |
| CN110077855A (en) * | 2019-04-28 | 2019-08-02 | 南京融点食品科技有限公司 | A kind of instant tea powder storage system and technique |
| CN114229479A (en) * | 2022-02-23 | 2022-03-25 | 宁波格劳博智能工业有限公司 | Lithium battery lithium salt full-automatic pneumatic conveying system |
-
2002
- 2002-06-26 CN CN 02112323 patent/CN1386688A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101712414A (en) * | 2008-10-08 | 2010-05-26 | 兰州交通大学 | Aerodynamic force pipeline transport system |
| CN101792069A (en) * | 2010-04-12 | 2010-08-04 | 福建龙净环保股份有限公司 | Pneumatic conveyer |
| CN101792069B (en) * | 2010-04-12 | 2013-02-20 | 福建龙净环保股份有限公司 | Pneumatic conveyer |
| CN103159032A (en) * | 2013-02-21 | 2013-06-19 | 江苏浦士达环保科技有限公司 | Pneumatic conveying system |
| CN103159032B (en) * | 2013-02-21 | 2015-10-28 | 江苏浦士达环保科技有限公司 | Flow delivery systems |
| CN104401738A (en) * | 2014-10-20 | 2015-03-11 | 无锡红旗除尘设备有限公司 | Nitrogen closed suction type pneumatic conveying method for lead powder |
| CN104401737A (en) * | 2014-10-20 | 2015-03-11 | 无锡红旗除尘设备有限公司 | Nitrogen closed suction type pneumatic conveying system for lead powder |
| CN104444377A (en) * | 2014-10-20 | 2015-03-25 | 无锡红旗除尘设备有限公司 | Nitrogen closed-cycle static pressure dense-phase segmented boosting pneumatic conveying method for lead powder |
| CN104401736A (en) * | 2014-10-20 | 2015-03-11 | 无锡红旗除尘设备有限公司 | Lead powder and nitrogen gas closed-cycle static-pressure dense-phase sectional boosting pneumatic conveying system |
| CN107298309A (en) * | 2016-04-15 | 2017-10-27 | 江苏瑞美福实业有限公司 | A kind of polycaprolactam section pipe-line transportation system |
| CN108163551A (en) * | 2017-12-08 | 2018-06-15 | 北京神雾电力科技有限公司 | Low order fine coal air-transport system |
| CN110077855A (en) * | 2019-04-28 | 2019-08-02 | 南京融点食品科技有限公司 | A kind of instant tea powder storage system and technique |
| CN114229479A (en) * | 2022-02-23 | 2022-03-25 | 宁波格劳博智能工业有限公司 | Lithium battery lithium salt full-automatic pneumatic conveying system |
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