CN216891759U - Retention aid control system of BM2 paper machine - Google Patents
Retention aid control system of BM2 paper machine Download PDFInfo
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- CN216891759U CN216891759U CN202220482911.2U CN202220482911U CN216891759U CN 216891759 U CN216891759 U CN 216891759U CN 202220482911 U CN202220482911 U CN 202220482911U CN 216891759 U CN216891759 U CN 216891759U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The utility model discloses a retention aid control system of a BM2 paper machine, which comprises a main power supply, a control power supply, a main control relay for controlling the on-off of the main power supply, a first relay, a first frequency converter, a first dosing water pump, a second relay, a second frequency converter and a second dosing water pump, wherein a plurality of proximity switches are arranged on coating heads of the first dosing water pump and the second dosing water pump which are connected through pipelines; the control power supply is connected with a first water pump control circuit and a second water pump control circuit, and the control power supply is connected with a liquid level and flow monitoring circuit; the main power supply is also connected with a first pneumatic electromagnetic valve and a second starting electromagnetic valve which respectively control the dilution water supplied by the first dosing water pump and the dilution water supplied by the second dosing water pump; through a remote distributed monitoring circuit, the process of filling the retention aid of the BM2 paper machine can be monitored in real time and displayed in an alarm manner, so that the fault processing time is greatly shortened, and the mass production of the back-copying paper caused by equipment faults is reduced.
Description
[ technical field ] A
The utility model relates to a monitoring technology of paper return of a paper machine, in particular to a retention aid control system of a BM2 paper machine.
[ background ] A method for producing a semiconductor device
In the paper processing industry, the BM2 paper machine has a function of directly coating dispersion barrier coating on the paper machine, and the produced coated paperboard does not contain plastics and can be recycled together with common waste paper. However, the existing retention aid feeding system of the BM2 paper machine auxiliary material workshop has the following problems: (1) the control mode of the feeding system is local control, which is not beneficial to production operation, the real-time flow condition of the feeding system cannot be monitored by a DCS, and remote monitoring cannot be realized, for example, when the feeding amount of the retention aid is too much, the inertia of the raw paper is broken; in addition, each coating head of the conventional BM2 paper machine is provided with 5 proximity switches for detecting the action position of the coating head, and if a certain proximity switch is broken, the operation of the whole coating head is influenced, so that the paper surface cannot be coated, and the occurrence of the back-cut paper is influenced. When the coating head can not act, a fault reason is usually found by a self-control engineer through a DCS program, which switch has a problem is determined, and the time for finding the problem is required. The time for normally replacing the proximity switch needs half an hour at least when determining which proximity switch is broken, and the 1 hour production is influenced if the proximity switch is changed in the middle and night shifts. (2) The field control box equipment is old, circuits in the cabinet are disordered, and potential safety hazards of electric leakage exist; and the drawing is not complete, which is not beneficial to maintenance and management.
Therefore, the improvement of the existing electric control system is urgently needed so as to facilitate remote automatic control and shorten the fault processing time.
[ Utility model ] content
The retention aid control system of the BM2 paper machine is simple to control, convenient for remote automatic control, capable of shortening fault processing time and effectively improving production efficiency.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
a retention aid control system of a BM2 paper machine is used for automatic control of faults in a paper machine paper-copying process and comprises a main power supply, a control power supply, a main control relay for controlling the on-off of the main power supply, a first relay, a first frequency converter, a first dosing water pump, a second relay, a second frequency converter and a second dosing water pump, wherein the first dosing water pump is used as a main control working pump, the second dosing water pump is used as a standby working pump, and coating heads of the first dosing water pump and the second dosing water pump which are connected through pipelines are respectively provided with a plurality of proximity switches;
the first relay, the first frequency converter and the first dosing water pump are sequentially connected in series to the main power circuit, and the second relay, the second frequency converter and the second dosing water pump are sequentially connected in series to the main power circuit;
the control power supply is connected with a first water pump control circuit and a second water pump control circuit which respectively control and display the running states of the first dosing water pump and the second dosing water pump, and the control power supply is connected with a liquid level and flow monitoring circuit which respectively monitors the liquid level and flow of the medicine barrel corresponding to the first dosing water pump and the liquid level and flow of the medicine barrel corresponding to the second dosing water pump;
the main power supply is also connected with a first pneumatic electromagnetic valve and a second starting electromagnetic valve which respectively control the dilution water supplied by the first dosing water pump and the dilution water supplied by the second dosing water pump.
Preferably, the first water pump control circuit comprises a first stop circuit for displaying that the first dosing water pump is in a stop state, a first fault circuit for displaying that the first dosing water pump is in a fault state, a first fault detection circuit and a first automatic detection circuit for detecting a proximity switch corresponding to the first dosing water pump, and a first manual control circuit and a first automatic control operation display circuit for controlling and displaying the first dosing water pump.
Preferably, the second water pump control circuit comprises a second stop circuit for displaying that the second dosing water pump is in a stop state, a second fault circuit for displaying that the second dosing water pump is in a fault state, a second fault detection circuit and a second automatic detection circuit for detecting a proximity switch corresponding to the second dosing water pump, and a second manual control circuit and a second automatic control operation display circuit for controlling and displaying the second dosing water pump.
Preferably, the liquid level and flow monitoring circuit comprises a liquid level switch circuit for starting liquid level detection of the explosive barrel, a first DCS starting control circuit for starting the first chemical adding water pump, a second DCS starting control circuit for starting the second chemical adding water pump, a remote fault reset button, a local fault reset button, a first low flow monitoring circuit for monitoring the flow of the first chemical adding water pump through a first set electromagnetic flow meter and a second low flow monitoring circuit for monitoring the flow of the second chemical adding water pump through a second set electromagnetic flow meter.
Preferably, the control power supply is further connected with a first pneumatic control and display circuit and a second pneumatic control and display circuit which respectively control and operate and display the first pneumatic electromagnetic valve and the second starting electromagnetic valve.
Preferably, the control power supply is further connected with a fan control circuit for controlling a cooling fan arranged in the system and an acousto-optic alarm circuit for controlling an acousto-optic alarm signal of the system.
The beneficial effects of the above technical scheme are:
the monitoring integration remote monitoring and operation of pulping control are achieved through a remote distributed monitoring circuit; a low-flow monitoring circuit consisting of electromagnetic flow is added to realize remote real-time monitoring and adjustment of flow; the filling process of the retention aid of the BM2 paper machine is monitored and displayed in real time, so that the fault automatic control in the paper-returning process of the paper machine is facilitated, the local and remote operation switching is realized, the state condition of the equipment is known in real time, the fault judging time is reduced, the adjusting time is reduced, the fault processing time is greatly shortened, the mass production of paper-returning caused by equipment faults is reduced, and the intelligent level and the control precision of the paper machine are improved.
[ description of the drawings ]
FIG. 1 is a schematic diagram of the master control circuitry of the present invention;
FIG. 2 is a schematic diagram of a first water pump control circuit in the present invention;
FIG. 3 is a schematic diagram of a second water pump control circuit in the present invention;
FIG. 4 is a schematic diagram of a first pneumatic control and display circuit, a second pneumatic control and display circuit, and an audible and visual alarm circuit in accordance with the present invention;
FIG. 5 is a schematic diagram of a liquid level and flow monitoring circuit of the present invention;
FIG. 6 is a wiring diagram of a first frequency converter in the present invention;
fig. 7 is a wiring diagram of a second frequency converter in the present invention.
[ detailed description ] embodiments
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. As used herein, the word "comprising" and similar words are intended to mean that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items.
Embodiments of the present invention will now be described with reference to the accompanying drawings.
A retention aid control system of a BM2 paper machine is used for automatic control of faults in the paper-returning process of the paper machine, and comprises a main power supply 1, a control power supply 2, a main control relay 3 for controlling the on-off of the main power supply 1, a first relay 4, a first frequency converter 5, a first dosing water pump 6, a second relay 7, a second frequency converter 8 and a second dosing water pump 9, wherein the first dosing water pump 6 is used as a main control working pump, the second dosing water pump 9 is used as a standby working pump, and coating heads of the first dosing water pump 6 and the second dosing water pump 9 which are connected through pipelines are respectively provided with a plurality of proximity switches; the first relay 4, the first frequency converter 5 and the first dosing water pump 6 are sequentially connected in series on the circuit of the main power supply 1, and the second relay 7, the second frequency converter 8 and the second dosing water pump 9 are sequentially connected in series on the circuit of the main power supply 1; the main power supply 1 is also connected to a first pneumatic solenoid valve 10 and a second start solenoid valve 11 for controlling the dilution water supplied from the first drug adding water pump 6 and the dilution water supplied from the second drug adding water pump 9, respectively.
Continuing as shown in fig. 1, 6 and 7, the control power supply 2 is connected with a first water pump control circuit 100 and a second water pump control circuit 200 which respectively control and display the operation states of the first dosing water pump 6 and the second dosing water pump 9, and the control power supply 2 is connected with a liquid level and flow monitoring circuit 300 which respectively monitors the liquid level and flow of the medicine barrel corresponding to the first dosing water pump 6 and the liquid level and flow of the medicine barrel corresponding to the second dosing water pump 9; as shown in fig. 4, the control power supply 2 is further connected to a first pneumatic control and display circuit 12 and a second pneumatic control and display circuit 13 for controlling and displaying the operation of the first pneumatic solenoid valve 10 and the second starting solenoid valve 11, respectively, and the control power supply 2 is further connected to a fan control circuit 14 for controlling a cooling fan provided in the system and an audible and visual alarm circuit 15 for controlling audible and visual alarm signals of the system.
As shown in FIG. 2, the first water pump control circuit 100 includes a first stop circuit 16 for displaying that the first medicated water pump 6 is in a stop state, a first failure circuit 17 for displaying that the first medicated water pump 6 is in a failure state, a first failure detection circuit 18 and a first automatic detection circuit 19 for detecting a proximity switch corresponding to the first medicated water pump 6, and a first manual control circuit 20 and a first automatic control operation display circuit 21 for controlling and displaying the first medicated water pump 6.
As shown in FIG. 3, the second pump control circuit 200 includes a second stop circuit 22 for indicating that the second drug adding water pump 9 is in a stopped state, a second failure circuit 23 for indicating that the second drug adding water pump 9 is in a failure state, a second failure detection circuit 24 and a second automatic detection circuit 25 for detecting a proximity switch corresponding to the second drug adding water pump 9, and a second manual control circuit 26 and a second automatic control operation display circuit 27 for controlling and displaying the second drug adding water pump 9.
As shown in fig. 5, the liquid level and flow monitoring circuit 300 includes a liquid level switch circuit 28 for starting the liquid level detection of the explosive barrel, a first DCS start control circuit 29 for controlling the start of the first chemical adding water pump 6 according to the liquid level switch circuit, a second DCS start control circuit 30 for controlling the start of the second chemical adding water pump 9 according to the liquid level switch circuit, a remote fault reset button 31, a local fault reset button 32, a first low flow monitoring circuit 34 for monitoring the flow of the first chemical adding water pump 6 through a set first electromagnetic flow meter 33, and a second low flow monitoring circuit 36 for monitoring the flow of the second chemical adding water pump 9 through a set second electromagnetic flow meter 35.
In the implementation, the monitoring integration remote monitoring and operation of pulping control are realized through a remote distributed monitoring circuit; a low-flow monitoring circuit consisting of electromagnetic flow is added to realize remote real-time monitoring and adjustment of flow; for example, by the state of each proximity switch, the state of the proximity switch in a certain state of the equipment can be clearly known to be in what working state, the time for judging the fault can be reduced, and particularly, the regular operating specification can be reached when the coating tool operates for a long time, and the fault point can be judged. In addition, a control switch is additionally arranged on each coating head operating platform, when a certain field proximity switch of a coating head is damaged, only a corresponding middle wiring cabinet needs to be disconnected in a cabinet chamber of a remote monitoring circuit, a switch signal is used for replacing a proximity switch signal (5 minutes), and then the proximity switch is replaced, wherein the time for replacing the proximity switch in the prior art is 1 hour; therefore, the fault processing time can be greatly shortened, the mass production of the back paper caused by equipment faults is reduced, and the intellectualization level and the control precision of the paper machine are improved.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the utility model, and all equivalent changes in shape, structure and principle of the utility model should be covered by the protection scope of the present invention.
Claims (6)
1. A retention aid control system of a BM2 paper machine is used for automatic control of faults in the paper machine paper-copying process and is characterized by comprising a main power supply, a control power supply, a main control relay for controlling the on-off of the main power supply, a first relay, a first frequency converter, a first dosing water pump, a second relay, a second frequency converter and a second dosing water pump, wherein the first dosing water pump is used as a main control working pump, the second dosing water pump is used as a standby working pump, and coating heads of the first dosing water pump and the second dosing water pump which are connected through pipelines are respectively provided with a plurality of proximity switches;
the first relay, the first frequency converter and the first dosing water pump are sequentially connected in series to the main power circuit, and the second relay, the second frequency converter and the second dosing water pump are sequentially connected in series to the main power circuit;
the control power supply is connected with a first water pump control circuit and a second water pump control circuit which respectively control and display the running states of the first dosing water pump and the second dosing water pump, and the control power supply is connected with a liquid level and flow monitoring circuit which respectively monitors the liquid level and flow of the medicine barrel corresponding to the first dosing water pump and the liquid level and flow of the medicine barrel corresponding to the second dosing water pump;
the main power supply is also connected with a first pneumatic electromagnetic valve and a second starting electromagnetic valve which respectively control the dilution water supplied by the first dosing water pump and the dilution water supplied by the second dosing water pump.
2. The retention aid control system of the BM2 paper machine according to claim 1, wherein: the first water pump control circuit comprises a first stop circuit for displaying that the first dosing water pump is in a stop state, a first fault circuit for displaying that the first dosing water pump is in a fault state, a first fault detection circuit and a first automatic detection circuit for detecting a proximity switch corresponding to the first dosing water pump, and a first manual control circuit and a first automatic control operation display circuit for controlling and displaying the first dosing water pump.
3. The retention aid control system of the BM2 paper machine according to claim 1, wherein: the second water pump control circuit comprises a second stop circuit for displaying that the second dosing water pump is in a stop state, a second fault circuit for displaying that the second dosing water pump is in a fault state, a second fault detection circuit and a second automatic detection circuit for detecting a proximity switch corresponding to the second dosing water pump, and a second manual control circuit and a second automatic control operation display circuit for controlling and displaying the second dosing water pump.
4. The retention aid control system of the BM2 paper machine according to claim 1, wherein: liquid level and flow monitoring circuit are including being used for opening the liquid level switch circuit that explosive barrel liquid level detected, according to liquid level switch circuit control first DCS start control circuit that adds the medicine water pump and start, according to liquid level switch circuit control the second DCS start control circuit that the second adds the medicine water pump and start, remote fault reset button, local fault reset button, it is right through the first electromagnetic flow meter that sets up first low flow monitoring circuit that adds medicine water pump flow and the second electromagnetic flow meter through setting up are right the second adds medicine water pump flow and carries out the second low flow monitoring circuit that monitors.
5. The retention aid control system of the BM2 paper machine according to claim 1, wherein: the control power supply is also connected with a first pneumatic control and display circuit and a second pneumatic control and display circuit which respectively control and operate and display the first pneumatic electromagnetic valve and the second starting electromagnetic valve.
6. The retention aid control system of the BM2 paper machine according to claim 1, wherein: the control power supply is also connected with a fan control circuit for controlling a cooling fan arranged in the system and an acousto-optic alarm circuit for controlling acousto-optic alarm signals of the system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220482911.2U CN216891759U (en) | 2022-03-04 | 2022-03-04 | Retention aid control system of BM2 paper machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220482911.2U CN216891759U (en) | 2022-03-04 | 2022-03-04 | Retention aid control system of BM2 paper machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216891759U true CN216891759U (en) | 2022-07-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220482911.2U Active CN216891759U (en) | 2022-03-04 | 2022-03-04 | Retention aid control system of BM2 paper machine |
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| Country | Link |
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| CN (1) | CN216891759U (en) |
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- 2022-03-04 CN CN202220482911.2U patent/CN216891759U/en active Active
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