CN104460732A - Self-control papermaking method - Google Patents
Self-control papermaking method Download PDFInfo
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- CN104460732A CN104460732A CN201410467962.8A CN201410467962A CN104460732A CN 104460732 A CN104460732 A CN 104460732A CN 201410467962 A CN201410467962 A CN 201410467962A CN 104460732 A CN104460732 A CN 104460732A
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- humidity
- papermaking
- moisture signal
- critical value
- producing site
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Abstract
Disclosed is a self-control papermaking method. In an automatic control system for papermaking, a plurality of humidity sensors arranged in a papermaking workshop are used for sensing the humidity signals for the humidity of the papermaking workshop, the sensed humidity signals are corrected, the humidity signals exceeding an error range are eliminated, and then the humidity of a papermaking site is controlled through the residual humidity signals. In this way, the defect that the papermaking quality can not be guaranteed as the humidity is not monitored in the prior art is effectively avoided.
Description
Technical field
The invention belongs to pulp technology for making paper, be specifically related to the papermaking process under a kind of automatic control.
Background technology
Current papermaking slowly enter the category that automatic control system completely handles, so just can improve production capacity, reduce the consume of papermaking and maximize reduction pollution, Automated condtrol paper is the widespread use be more and more subject in industry thus.
But due to the increase of output, need the point that controls a lot, the monitoring of the humidity therefore often in papermaking has just been left in the basket completely, if do not carry out the monitoring of humidity, the quality like this for papermaking cannot ensure.
Summary of the invention
The object of this invention is to provide the papermaking process under a kind of automatic control, described papermaking process is in the automation control system of papermaking, the induction to the humidity of paper machine room just moisture signal is carried out by the some humidity sensors being arranged on paper machine room, in addition the moisture signal sensed is realized correction process, and eliminate the moisture signal of error over range, rely on remaining moisture signal thus subsequently and come to implement manipulation to the humidity of paper producing site.The monitoring not carrying out humidity of the prior art can be effectively avoided to be the defect that cannot ensure for the quality of papermaking so like this.
In order to overcome deficiency of the prior art, the invention provides the solution of the papermaking process under a kind of automatic control, specific as follows:
Papermaking process under a kind of automatic control, described papermaking process is in the automation control system of papermaking, the induction to the humidity of paper machine room just moisture signal is carried out by the some humidity sensors being arranged on paper machine room, in addition the moisture signal sensed is realized correction process, and eliminate the moisture signal of error over range, rely on remaining moisture signal thus subsequently and come to implement manipulation to the humidity of paper producing site.
If the humidity sensor that the moisture signal passing out error over range that the automation control system of described papermaking walks abreast when eliminating the moisture signal of error over range is derived from runs vicious notification message.
When described humidity sensor is more than three, the temperature signal that each humidity sensor senses is implemented summation for the automation control system of papermaking and number divided by moisture signal obtains humidity baseline signal value, then eliminating moisture signal with maximum those moisture signals of the difference of humidity baseline signal value, carrying out suing for peace and the working relative humidity obtaining paper producing site divided by the quantity of remaining moisture signal eliminating the remaining moisture signal after moisture signal so again.
Upper critical value and lower limit critical value is preset with in the automation control system of described papermaking, upper critical value is greater than lower limit critical value, if when the working relative humidity of the paper producing site obtained like this is less than lower limit critical value, the dehydrating unit of paper producing site is just in halted state; If when the working relative humidity of the paper producing site obtained is between upper critical value and lower limit critical value, the dehydrating unit of paper producing site is just in normal operating conditions; If when the working relative humidity of the paper producing site obtained is greater than upper critical value, the dehydrating unit of paper producing site is just in comprehensive duty.
Described comprehensive duty be paper producing site dehydrating unit with 80% of its rated power duty work.
Described humidity sensor is capacitance type humidity sensor.
Hinge structure of the present invention also has the requirement really achieving humid control.
Embodiment
Papermaking process under automatic control of the present invention, described papermaking process is in the automation control system of papermaking, the induction to the humidity of paper machine room just moisture signal is carried out by the some humidity sensors being arranged on paper machine room, in addition the moisture signal sensed is realized correction process, and eliminate the moisture signal of error over range, rely on remaining moisture signal thus subsequently and come to implement manipulation to the humidity of paper producing site.If the humidity sensor that the moisture signal passing out error over range that the automation control system of described papermaking walks abreast when eliminating the moisture signal of error over range is derived from runs vicious notification message.When described humidity sensor is more than three, the temperature signal that each humidity sensor senses is implemented summation for the automation control system of papermaking and number divided by moisture signal obtains humidity baseline signal value, then eliminating moisture signal with maximum those moisture signals of the difference of humidity baseline signal value, carrying out suing for peace and the working relative humidity obtaining paper producing site divided by the quantity of remaining moisture signal eliminating the remaining moisture signal after moisture signal so again.Upper critical value and lower limit critical value is preset with in the automation control system of described papermaking, upper critical value is greater than lower limit critical value, if when the working relative humidity of the paper producing site obtained like this is less than lower limit critical value, the dehydrating unit of paper producing site is just in halted state; If when the working relative humidity of the paper producing site obtained is between upper critical value and lower limit critical value, the dehydrating unit of paper producing site is just in normal operating conditions; If when the working relative humidity of the paper producing site obtained is greater than upper critical value, the dehydrating unit of paper producing site is just in comprehensive duty, and such classifying type process meets dehumidification requirements, and robotization real-time levels is high.Described comprehensive duty be the dehydrating unit of paper producing site with the duty work of 80% of its rated power, can avoid that duty is excessive or the too small effect on moisture extraction that causes is bad like this.Described humidity sensor is capacitance type humidity sensor, and such structure failure rate is little.
The above, it is only this practical preferred embodiment, not any pro forma restriction is done to the present invention, although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be do not depart from technical solution of the present invention content, according to this practical technique essence, within this practicality spirit and principle, to any simple amendment that above embodiment is done, equivalent replacement and improvement etc., within the protection domain all still belonging to technical solution of the present invention.
Claims (6)
1. the papermaking process under an automatic control, it is characterized in that described papermaking process is in the automation control system of papermaking, the induction to the humidity of paper machine room just moisture signal is carried out by the some humidity sensors being arranged on paper machine room, in addition the moisture signal sensed is realized correction process, and eliminate the moisture signal of error over range, rely on remaining moisture signal thus subsequently and come to implement manipulation to the humidity of paper producing site.
2. the papermaking process under automatic control according to claim 1, if is characterized in that the humidity sensor that the moisture signal passing out error over range that the automation control system of described papermaking walks abreast when eliminating the moisture signal of error over range is derived from runs vicious notification message.
3. the papermaking process under automatic control according to claim 1, when it is characterized in that described humidity sensor is more than three, the temperature signal that each humidity sensor senses is implemented summation for the automation control system of papermaking and number divided by moisture signal obtains humidity baseline signal value, then eliminating moisture signal with maximum those moisture signals of the difference of humidity baseline signal value, carrying out suing for peace and the working relative humidity obtaining paper producing site divided by the quantity of remaining moisture signal eliminating the remaining moisture signal after moisture signal so again.
4. the papermaking process under automatic control according to claim 3, it is characterized in that in the automation control system of described papermaking, being preset with upper critical value and lower limit critical value, upper critical value is greater than lower limit critical value, if when the working relative humidity of the paper producing site obtained like this is less than lower limit critical value, the dehydrating unit of paper producing site is just in halted state; If when the working relative humidity of the paper producing site obtained is between upper critical value and lower limit critical value, the dehydrating unit of paper producing site is just in normal operating conditions; If when the working relative humidity of the paper producing site obtained is greater than upper critical value, the dehydrating unit of paper producing site is just in comprehensive duty.
5. the papermaking process under automatic control according to claim 4, it is characterized in that described comprehensive duty be paper producing site dehydrating unit with 80% of its rated power duty work.
6. the papermaking process under automatic control according to claim 1, is characterized in that described humidity sensor is capacitance type humidity sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410467962.8A CN104460732A (en) | 2014-09-16 | 2014-09-16 | Self-control papermaking method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410467962.8A CN104460732A (en) | 2014-09-16 | 2014-09-16 | Self-control papermaking method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104460732A true CN104460732A (en) | 2015-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410467962.8A Pending CN104460732A (en) | 2014-09-16 | 2014-09-16 | Self-control papermaking method |
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| CN (1) | CN104460732A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63120316A (en) * | 1986-11-08 | 1988-05-24 | Sumitomo Electric Ind Ltd | Temperature control method for heating device of traveling conductor |
| CN1644257A (en) * | 2004-12-15 | 2005-07-27 | 大连理工大学 | Heating furnace comprehensive optimizing controlling system designing and controlling method for hot rolling process |
| CN102392119A (en) * | 2011-10-28 | 2012-03-28 | 重庆赛迪工业炉有限公司 | Online comprehensive control method for hot-galvanized continuous annealing furnace |
| CN103278022A (en) * | 2013-06-13 | 2013-09-04 | 天津高德恒立科技有限公司 | Control method for heating furnace |
| CN103464474A (en) * | 2013-08-12 | 2013-12-25 | 北京首钢自动化信息技术有限公司 | Automatic temperature control method for rod material cold control system |
-
2014
- 2014-09-16 CN CN201410467962.8A patent/CN104460732A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63120316A (en) * | 1986-11-08 | 1988-05-24 | Sumitomo Electric Ind Ltd | Temperature control method for heating device of traveling conductor |
| CN1644257A (en) * | 2004-12-15 | 2005-07-27 | 大连理工大学 | Heating furnace comprehensive optimizing controlling system designing and controlling method for hot rolling process |
| CN102392119A (en) * | 2011-10-28 | 2012-03-28 | 重庆赛迪工业炉有限公司 | Online comprehensive control method for hot-galvanized continuous annealing furnace |
| CN103278022A (en) * | 2013-06-13 | 2013-09-04 | 天津高德恒立科技有限公司 | Control method for heating furnace |
| CN103464474A (en) * | 2013-08-12 | 2013-12-25 | 北京首钢自动化信息技术有限公司 | Automatic temperature control method for rod material cold control system |
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Application publication date: 20150325 |
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| RJ01 | Rejection of invention patent application after publication |