CN101464184A - Negative-pressure pneumatic conveying and measuring system - Google Patents
Negative-pressure pneumatic conveying and measuring system Download PDFInfo
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- CN101464184A CN101464184A CNA2007101158915A CN200710115891A CN101464184A CN 101464184 A CN101464184 A CN 101464184A CN A2007101158915 A CNA2007101158915 A CN A2007101158915A CN 200710115891 A CN200710115891 A CN 200710115891A CN 101464184 A CN101464184 A CN 101464184A
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Abstract
The invention provides a negative pressure pneumatic transmission weighing system which adopts the negative pressure pneumatic transmission adaptable to the production condition in a single-storey low factory building and improves the weighing accuracy. Particularly, the system is suitable for a formula product with less consumption of powder. The system mainly comprises a rotary feeder connected below a storage bin; an outlet of the rotary feeder is connected with a material accelerating chamber; the material accelerating chamber is connected with one end of a conveying pipeline; an inlet of a powder scale is connected with the other end of the conveying pipeline; a dust remover is connected above the powder scale through a flange; the dust remover is connected with a Roots blower through a vacuum pipeline; a negative pressure control valve is arranged at one end of the vacuum pipeline adjacent to the dust remover; and a negative pressure adjusting valve communicated with the external environment is arranged at one end of the vacuum pipeline adjacent to the Roots blower.
Description
Technical field
The present invention relates to a kind of negative-pressure pneumatic conveying and measuring system, the less material proportion technological process of consumption that is applied to particularly fill a prescription belongs to mechanical manufacturing field.
Background technology
Generally adopt in industries such as rubber manufacturing machinery, chemical industry metallurgical at present and concentrate feed proportioning system, adopting in feed proportioning system has many rows or multiple layered material storehouse to store the material of a plurality of layerings.
It is higher that the existing malleation air-transport system that adopts requires that factory building is installed, and needs bigger floor area.For the in-situ production environment of the short factory building of individual layer, the malleation induction system just can't realize, as takes counter-measure and transform the malleation transfer pipeline, tends to the problem that causes discharge pressure to descend and influence weighing precision again.
Summary of the invention
The objective of the invention is to, provide a kind of negative-pressure pneumatic conveying and measuring system to address the above problem.By adopting working condition, the raising weighing precision of negative pressure strength conveying, be particularly suitable for the less formulation product of powder amount ratio with the short factory building of reply individual layer.
For realizing above-mentioned purpose of design, described negative-pressure pneumatic conveying and measuring system mainly includes:
Be connected the rotary feeder of feed bin below, the outlet of rotary feeder connects the material accelerating chamber, and the material accelerating chamber connects an end of transfer pipeline, and the other end of transfer pipeline connects the inlet of filler weigher, and fly-ash separator is connected the top of filler weigher by flange.
Fly-ash separator links to each other with a roots blower by vacuum line, near an end of fly-ash separator one negative pressure control valve is set at vacuum line, near an end of roots blower the one negative pressure variable valve that is communicated with external environment condition is set at vacuum line.
As above-mentioned technical characterictic, the material of institute's proportioning weighing enters transfer pipeline from the rotary feeder of feed bin below, transfer pipeline adopts the antistatic rubber tube material to make, the roots blower of far-end forms negative pressure by the filtration winding-up action of fly-ash separator in filler weigher one side, utilizes principle of negative pressure that material is sent into filler weigher and finished metering.
For improving the precision and the operability of vacuum pressure conveying material, an end that enters the mouth at transfer pipeline connection filler weigher is provided with a conveying operation valve, and the front end of filler weigher inlet connects the control of breathing valve of a connection external environment condition.
When the startup roots blower carries out the negative pressure transportation weighing, need close the control of breathing valve to guarantee the negative pressure pressure in the transfer pipeline, open this moment and carry operation valve so that material is sent into filler weigher by transfer pipeline.
After the program that mass transport to is set, open the control of breathing valve, close and carry operation valve to lay down the negative pressure in the filler weigher, guarantee normal air pressure range in the filler weigher.
Further improvement project is, connects a fork plate valve between feed bin and rotary feeder, and Rotary feeder connects the lower body outlet that is lifted on the fork plate valve by flange.Between outlet of feed bin lower body and rotary feeder, the fork plate valve is set, helps overhauling, changing the rotary valve of rotary feeder.
In addition, one material-gas ratio example variable valve is set, to realize that material mixes by certain material-gas ratio in accelerating chamber after, enters into the mass transport pipeline again at the front end of material accelerating chamber.Wherein, the mass transport pipeline adopts special antistatic rubber tube material to make.
As above content, the advantage that described negative-pressure pneumatic conveying and measuring system has is, can solve the condition restriction short because of factory, that the place is limited, take long-range negative pressure transportation principle for the less formulation product of powder consumption, system equipment is stable, weighing precision is higher, and system adopts airtight weighing mode and avoided the problem that dust waves in the weighing process.
Description of drawings
Fig. 1 is described negative-pressure pneumatic conveying and measuring system schematic diagram.
As shown in Figure 1, powder feed bin 1, fork plate valve 2, rotary feeder 3, accelerating chamber 4, material-gas ratio example variable valve 5, transfer pipeline 6, control of breathing valve 7 is carried operation valve 8, filler weigher 9, fly-ash separator 10, negative pressure control valve 11, vacuum line 12, negative pressure variable valve 13, roots blower 14.
Embodiment
Embodiment 1, and as shown in Figure 1, described negative-pressure pneumatic conveying and measuring system connects a fork plate valve 2 between feed bin 1 and rotary feeder 3, and Rotary feeder 3 connects the lower body outlet that is lifted on fork plate valve 2 by flange.
The outlet of the rotary valve of rotary feeder 3 connects material accelerating chamber 4, and material accelerating chamber 4 connects an end of transfer pipelines 6, at the front end of material accelerating chamber 4 material-gas ratio example variable valve 5 is set.
The other end of transfer pipeline 6 connects the inlet of filler weigher 9, and fly-ash separator 10 is connected the top of filler weigher 9 by flange.Wherein, an end that connects filler weigher 9 inlets at transfer pipeline 6 is provided with a conveying operation valve 8, and the front end connection one of filler weigher 9 inlets is communicated with the control of breathing valve 7 of external environment condition.
Fly-ash separator 10 links to each other with a roots blower 14 by vacuum line 12, near an end of fly-ash separators 10 negative pressure control valve 11 is set at vacuum line 12, and the negative pressure variable valve 13 of a connection external environment condition is set near an end of roots blowers 14 at vacuum line 12.
Concrete conveying weighing process is as follows:
Adjust after the material gas proportion valve 5 by normal conveying, at first start roots blower 14, close negative pressure variable valve 13, control of breathing valve 7, open negative pressure control valve 11, carry operation valve 8 and start corresponding Rotary feeder 3.Material enters filler weigher 9 by transfer pipeline 6.
After program detects a value, close Rotary feeder 3, negative pressure control valve 11 and carry operation valve 8, open control of breathing valve 7, negative pressure variable valve 13, pressure in the balance filler weigher 9, contrast difference and record again, repeat a process afterwards again, up to the range of scale to fast approaching prescription requirement.
Last crawl again is several to add within the margin tolerance of setting down, guarantees weighing precision and finishes the weighing of a prescription.
Claims (4)
1, a kind of negative-pressure pneumatic conveying and measuring system, include the rotary feeder (3) that is connected feed bin (1) below, the outlet of rotary feeder (3) connects material accelerating chamber (4), material accelerating chamber (4) connects an end of transfer pipeline (6), the other end of transfer pipeline (6) connects the inlet of filler weigher (9), fly-ash separator (10) is connected the top of filler weigher (9) by flange, it is characterized in that: fly-ash separator (10) links to each other with a roots blower (14) by vacuum line (12), end at the close fly-ash separator (10) of vacuum line (12) is provided with a negative pressure control valve (11), and the negative pressure variable valve (13) of a connection external environment condition is set near an end of roots blower (14) at vacuum line (12).
2, negative-pressure pneumatic conveying and measuring system according to claim 1, it is characterized in that: an end that connects filler weigher (9) inlet at transfer pipeline (6) is provided with a conveying operation valve (8), and the front end connection one of filler weigher (9) inlet is communicated with the control of breathing valve (7) of external environment condition.
3, negative-pressure pneumatic conveying and measuring system according to claim 1 and 2 is characterized in that: connect a fork plate valve (2) between feed bin (1) and rotary feeder (3), Rotary feeder (3) connects the lower body outlet that is lifted on fork plate valve (2) by flange.
4, negative-pressure pneumatic conveying and measuring system according to claim 3 is characterized in that: the front end at material accelerating chamber (4) is provided with material-gas ratio example variable valve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101158915A CN101464184B (en) | 2007-12-19 | 2007-12-19 | Negative-pressure pneumatic conveying and measuring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101158915A CN101464184B (en) | 2007-12-19 | 2007-12-19 | Negative-pressure pneumatic conveying and measuring system |
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| Publication Number | Publication Date |
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| CN101464184A true CN101464184A (en) | 2009-06-24 |
| CN101464184B CN101464184B (en) | 2011-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007101158915A Active CN101464184B (en) | 2007-12-19 | 2007-12-19 | Negative-pressure pneumatic conveying and measuring system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102922618A (en) * | 2011-04-01 | 2013-02-13 | 南京工业大学 | Preparation system device and preparation method of high-performance carbon black master batch |
| CN105836471A (en) * | 2016-05-14 | 2016-08-10 | 芜湖万向新元环保科技有限公司 | Negative pressure conveying system |
| CN113694803A (en) * | 2021-08-24 | 2021-11-26 | 中材锂膜有限公司 | Powder material flowing system of lithium ion battery diaphragm |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968373B (en) * | 2010-09-15 | 2012-08-22 | 三一重工股份有限公司 | Negative pressure monitoring system and negative pressure monitoring method for powder measurement |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7414152A (en) * | 1973-12-08 | 1975-06-10 | Zimmermann Azo Maschf | IMPROVEMENT OF A WEIGHING DEVICE FOR A PNEUMATIC TRANSPORT INSTALLATION. |
| DE2733201B1 (en) * | 1977-07-22 | 1978-09-21 | Waeschle Maschf Gmbh | Device for the pneumatic loading of a container scale |
| DE2805565B1 (en) * | 1978-02-10 | 1979-06-07 | Gattys Verfahrenstech | Dosing device for bulk goods in pneumatic conveyor systems |
| DE3128637C2 (en) * | 1981-07-20 | 1985-06-27 | Single Fördertechnik GmbH, 7145 Markgröningen | Method for dosing and discharging bulk goods |
| CN1719359A (en) * | 2005-04-30 | 2006-01-11 | 江苏南大紫金科技集团有限公司 | Intelligent pneumatic transfer metering dosage device |
| CN100519370C (en) * | 2006-04-13 | 2009-07-29 | 江苏南大紫金科技集团有限公司 | Multifunctional pneumatic conveying device |
| CN201138233Y (en) * | 2007-12-19 | 2008-10-22 | 青岛高校软控股份有限公司 | Negative-pressure pneumatic conveying and measuring system |
-
2007
- 2007-12-19 CN CN2007101158915A patent/CN101464184B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102922618A (en) * | 2011-04-01 | 2013-02-13 | 南京工业大学 | Preparation system device and preparation method of high-performance carbon black master batch |
| CN102922618B (en) * | 2011-04-01 | 2015-04-08 | 南京工业大学 | Preparation system device and preparation method of carbon black master batch |
| CN105836471A (en) * | 2016-05-14 | 2016-08-10 | 芜湖万向新元环保科技有限公司 | Negative pressure conveying system |
| CN113694803A (en) * | 2021-08-24 | 2021-11-26 | 中材锂膜有限公司 | Powder material flowing system of lithium ion battery diaphragm |
| CN113694803B (en) * | 2021-08-24 | 2023-08-15 | 中材锂膜有限公司 | Powder material flowing system of lithium ion battery diaphragm |
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| Publication number | Publication date |
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| CN101464184B (en) | 2011-01-26 |
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