CN104878641A - Automatic pulp concentration adjusting device - Google Patents
Automatic pulp concentration adjusting device Download PDFInfo
- Publication number
- CN104878641A CN104878641A CN201510304318.3A CN201510304318A CN104878641A CN 104878641 A CN104878641 A CN 104878641A CN 201510304318 A CN201510304318 A CN 201510304318A CN 104878641 A CN104878641 A CN 104878641A
- Authority
- CN
- China
- Prior art keywords
- pulp
- concentration
- control system
- automatic valve
- pulp density
- 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.)
- Pending
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Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/08—Regulating consistency
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- Paper (AREA)
Abstract
The invention relates to an automatic pulp concentration adjusting device which comprises a pulp making chamber, a pulp output pipeline, a pulp concentration meter, a water inlet pipeline, an automatic valve and a control system. The pulp making chamber is connected with the pulp output pipeline and the water inlet pipeline, the pulp concentration meter is arranged on the pulp output pipeline, the automatic valve is arranged on the water inlet pipeline, and the pulp concentration meter and the automatic valve are connected to the control system. The concentration of pulp flowing in the pulp output pipeline is detected through the pulp concentration meter, concentration signals are converted into current signals which are sent to the control system, the control system has the inputted signals and a set valve compared and calculated, and clean water flow of the water inlet pipeline is adjusted by controlling switching value of the automatic valve according to the calculation results, so that the concentration of the pulp can be controlled and can be fixed on the setting concentration.
Description
Technical field
The present invention relates to pulp technology for making paper, specifically refer to a kind of pulp density self-checking device.
Background technology
In paper, the adjustment of paper cross direction ration normally regulates the aperture of small lip edge by micro actuator, control the flow of slurry stream, thus reaches the quantitative of adjustment paper banner; Or regulate pulp density by the amount controlling to inject dilution water, thus reach the quantitative of adjustment paper banner.At present, the ball valve that the control of injecting the amount of dilution water adopts common fluid to use mostly, gate valve or needle-valve etc., the adjustment of its aperture needs manually or electric operator.Because the spacing injecting dilution water cross direction ration regulating system is little, control accuracy requires high, and it is relevant with becoming a lot of changes in process parameters of paper, so, the ball valve that above-mentioned employing common fluid uses, gate valve or needle-valve etc., more manually or electric operator just cannot reach the requirement of fine adjustment pulp density.Therefore, design a kind of spacing little, the paper pulp adjusting device that control accuracy is high is research purpose of the present invention.
Summary of the invention
The invention provides a kind of pulp density self-checking device, can effectively solve the problems of the technologies described above.
Technical scheme of the present invention is:
A kind of pulp density self-checking device, comprise pulping chamber, slurry output channel, pulp density meter, inlet channel, automatic valve and control system, described pulping chamber is connected with slurry output channel and inlet channel, described slurry output channel is provided with pulp density meter, described inlet channel is provided with automatic valve, and described pulp density meter and automatic valve are connected to described control system.
Described inlet channel is connected to extraneous clear water source by suction pump.
Advantage of the present invention:
The present invention is by the concentration of the slurry that flows in pulp density meter test slurry output channel, concentration signal is converted to current signal, send into control system, the signal of input and setting value are compared calculating by control system, according to computation structure, are regulated the clear water flow of water inlet pipe by the switching value controlling automatic valve, and then control pulp density, its spacing is little, and control accuracy is high, slurry concentration can be stabilized in setting concentration.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Now embodiment is described in further detail structure of the present invention by reference to the accompanying drawings for the ease of it will be appreciated by those skilled in the art that:
With reference to figure 1, a kind of pulp density self-checking device, comprise pulping chamber 1, slurry output channel 2, pulp density meter 3, inlet channel 4, automatic valve 5 and control system 6, described pulping chamber 1 is connected with slurry output channel 2 and inlet channel 3, described slurry output channel 3 is provided with pulp density meter 3, described inlet channel 4 is provided with automatic valve 5, and described pulp density meter 3 and automatic valve 5 are connected to described control system 6.
Described inlet channel 4 is connected to extraneous clear water source by suction pump 7.
The present invention is by the concentration of flowing slurry in pulp density meter 3 test slurry output channel 2, concentration signal is converted to current signal, send into control system 6, the signal of input and setting value are compared calculating by control system 6, according to computation structure, regulated the clear water flow of water inlet pipe 4 by the switching value controlling automatic valve 5.When the pulp density value measured is lower than setting value, increase the switching value of automatic valve 5, thus improve the clear water flow of water inlet pipe 4; When the pulp density value measured is higher than setting value, then reduce the switching value of automatic valve 5, thus reduce the clear water flow of water inlet pipe 4.Slurry concentration is stabilized in setting concentration.
The foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (2)
1. a pulp density self-checking device, comprise pulping chamber, slurry output channel, pulp density meter, inlet channel, automatic valve and control system, it is characterized in that: described pulping chamber is connected with slurry output channel and inlet channel, described slurry output channel is provided with pulp density meter, described inlet channel is provided with automatic valve, and described pulp density meter and automatic valve are connected to described control system.
2. a kind of pulp density self-checking device according to claim 1, is characterized in that: described inlet channel is connected to extraneous clear water source by suction pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510304318.3A CN104878641A (en) | 2015-06-08 | 2015-06-08 | Automatic pulp concentration adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510304318.3A CN104878641A (en) | 2015-06-08 | 2015-06-08 | Automatic pulp concentration adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104878641A true CN104878641A (en) | 2015-09-02 |
Family
ID=53946305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510304318.3A Pending CN104878641A (en) | 2015-06-08 | 2015-06-08 | Automatic pulp concentration adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104878641A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106625982A (en) * | 2016-10-19 | 2017-05-10 | 河南鑫饰板业有限公司 | Fiber stuff concentration control device |
| CN110665419A (en) * | 2019-09-03 | 2020-01-10 | 广州华工环源绿色包装技术股份有限公司 | Concentration adjusting device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3898124A (en) * | 1971-11-18 | 1975-08-05 | Asea Ab | Automatic control of a continuous digester, including level, concentration, and flow meters |
| CN101705633A (en) * | 2009-10-30 | 2010-05-12 | 华南理工大学 | Device for controlling pulping process and control method thereof |
| CN201546115U (en) * | 2009-10-30 | 2010-08-11 | 华南理工大学 | Control device of beating process |
| CN202509325U (en) * | 2012-02-21 | 2012-10-31 | 东莞市石龙联兴实业有限公司 | Flow-onto-wire pulp automatic control device for papermaking machine |
-
2015
- 2015-06-08 CN CN201510304318.3A patent/CN104878641A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3898124A (en) * | 1971-11-18 | 1975-08-05 | Asea Ab | Automatic control of a continuous digester, including level, concentration, and flow meters |
| CN101705633A (en) * | 2009-10-30 | 2010-05-12 | 华南理工大学 | Device for controlling pulping process and control method thereof |
| CN201546115U (en) * | 2009-10-30 | 2010-08-11 | 华南理工大学 | Control device of beating process |
| CN202509325U (en) * | 2012-02-21 | 2012-10-31 | 东莞市石龙联兴实业有限公司 | Flow-onto-wire pulp automatic control device for papermaking machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106625982A (en) * | 2016-10-19 | 2017-05-10 | 河南鑫饰板业有限公司 | Fiber stuff concentration control device |
| CN110665419A (en) * | 2019-09-03 | 2020-01-10 | 广州华工环源绿色包装技术股份有限公司 | Concentration adjusting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150902 |
|
| WD01 | Invention patent application deemed withdrawn after publication |