CN1052153A - Single-tank control cabinet for electrolysis of aluminium - Google Patents
Single-tank control cabinet for electrolysis of aluminium Download PDFInfo
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- CN1052153A CN1052153A CN89107353A CN89107353A CN1052153A CN 1052153 A CN1052153 A CN 1052153A CN 89107353 A CN89107353 A CN 89107353A CN 89107353 A CN89107353 A CN 89107353A CN 1052153 A CN1052153 A CN 1052153A
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- control
- electrolysis
- aluminium
- control cabinet
- micro
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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
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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Abstract
The present invention is used for the automatic or manual control device that side is inserted the control of self-baking aluminium electrolytic bath pole span, is made up of power supply, control, demonstration and follower four parts, and the CPU (central processing unit) of control section adopts micro-chip.The present invention is disposed at and carries out single groove control on each electrolyzer, makes it to be in optimum Working, and to realize energy-conservation purpose, the single groove ton of generalized case aluminium can economize on electricity about 251 degree, and energy-saving effect is obvious.The present invention has the kinds of protect function, and immunity from interference is strong, and Working environment requires low, uses more flexible.Pausing change promptly can be used as self-contained system and uses separately.
Description
The present invention is a kind of automatic control device, specifically is used for the measure and control instrument device that side is inserted self-baking aluminium electrolytic bath.
Aluminium manufacturer's electrolysis system aluminium power consumption is big to be well known fact, therefore, reduces the power consumption of electrolysis system aluminium and is paid close attention to by system aluminium industry always.Common means are to utilize slot control machine that operating mode is implemented control, to reach aim of power saving.But existing slot control machine is aspect autonomy function, and its control command wants upper computer to assign and No data collection and digitizing demonstration, and security, reliability etc. remains further to strengthen satisfying the requirement that production is used.Another kind of way is to utilize single card microcomputer that the dozens of electrolyzer is carried out simple sequential control, also facts have proved and can not realize energy-conservation purpose effectively that the left alone without help usefulness person that shuts down is not within minority.That is to say that the power consumption that reduces electrolysis legal system aluminium is still a problem demanding prompt solution.
The invention provides a kind of single-tank control cabinet for electrolysis of aluminium that designs by " collecting and distributing " system design pattern at the problems referred to above, make it to be in all the time optimum Working, to realize aim of power saving by optimum control to electrolyzer.
Single-tank control cabinet for electrolysis of aluminium provided by the invention is to utilize micro-chip electrolyzer to be carried out the single-loop controller of pole span control, can carry out each other serial communication with the quasi-duplex form with upper computer, its input is bath voltage (analog quantity) and potline current (pulsed quantity), and output is anode " liter " or " falling " of automatic or manual control electrolyzer.Aspect data gathering, adopt integration type electric voltage frequency switch technology, not only the part of data acquisition of analog quantity and the host machine part of this tank control cabinet have been played good buffer action, and eliminated sampling effectively and disturbed.Display unit such as numeral and potline current numeral when having bath voltage numeral, single groove variable pressure.When linking with it, no upper computer can carry out the pole span control of automatic or manual separately.The present invention so that be adapted to various operating environments, makes shell with the sealing metal casing for to prevent the leakage of external electromagnetic interference and electrical noise effectively.In order to keep in repair, the present invention that makes things convenient for of debugging adopts modular structure, forms its functional block diagram as shown in Figure 1 by four parts: A is that supplying unit, B are that control section, C are that display part, D are outputs.
Supplying unit is an important component part of the present invention, must have good immunity from interference at work, for this reason, super quarantine measures except that taking inductor capacitor filter technology, have also been taked at supplying unit, promptly at the elementary of supply transformer and time inter-stage, between secondary each winding, all be added with shielding case, thereby improved the immunity from interference of power supply.In view of energy consumption of the present invention very little, so still adopt traditional continuous tandem to adjust direct supply.The schematic circuit of supplying unit as shown in Figure 2, RS is a fuse among Fig. 2, L
1～L
4And C
1Form the primary filtering circuit of supply transformer, L
5Be the primary winding of supply transformer, L
6Be communication winding, L
7Be digital winding, L
8Be simulation winding, L
9For driving winding, D are that rectifier bridge, 78XX are the DC voltage-stabilizing integrated package, R
2And capacitor C
2～C
5Filtering circuit for the voltage stabilizing part.
Control section B is fitted together with the STD form by front panel (BA), mainboard (BB), switchboard (BC) and a multiple bus (BD), and its functional block diagram as shown in Figure 3.
Front panel (BA) is an input interface, its mainly act on be will have from each side the information conversion of different potentials to become with mainboard (BB) power supply ground be that the signal of benchmark is sent into mainboard (BB), surpass isolation and anti-interference effect.Bath voltage is made analog quantity has also formed the upper limit, lower limit and card limit in the digital quantity conversion control guard signal at front panel (BA) through the V/F umformer; the embodiment schematic circuit of front panel (BA) as shown in Figure 4; RS is a fuse among the figure, and VFC is a voltage-frequency converter, T
1For isolating the photoelectronic coupler of simulation and numerical portion, LM
339Be the comparer integrated package, it and R
4～R
12Constitute upper limit comparison circuit,
Be the logical AND gate that shaping is used, D
1, D
2Be LM
339The positive and negative overvoltage protection diode of device.Lower limit, go up the card limit and the testing circuit principle of card limit is identical with the last margining detecting circuit shown in Fig. 4 down.R
20Be current-limiting resistance, T
3For isolating the photoelectronic coupler spare of potline current and numerical portion.
Mainboard (BB) is the information processing to gathering mainly, and calculates by certain mathematical model, exports various control informations according to calculation result and drives topworks, simultaneously the state of electrolyzer and data is sent to the display part and is shown.The CPU (central processing unit) of mainboard (BB) adopts micro-chip, for example available 8039 micro-chips.The structure of mainboard (BB) and embodiment block diagram as shown in Figure 5, IC among the figure
1Be 8251 serial communication controls able to programme, IC
4Be 8259 PICs, IC
2～IC
3Be 8253 programmable Timer counters, IC
5Be 8039 micro-chips, IC
7, IC
8Be 8243 expansion interfaces, IC
6Be 2732 program stores.
Switchboard (BC) is used to switch manual operation and the control channel of operating automatically, and the control signal of output is isolated, power amplifier and sequential protection.Its structure and embodiment block diagram are as shown in Figure 6; I is the switching part of manual control signal and automatic control signal among Fig. 6; II is the sequential protection part of control signal, and III is the signal isolated part, and IV is that signal amplifying part branch, V are that spacing guard signal is isolated and amplifier section.
Display part C makes numeral by charactron to show, according to circumstances can select a plurality of common cathode multistage charactrons for use.
Output D mainly is signal and the order that receives from switchboard (BC) and front panel (BA), carry out logical combination as " starting ", " liter ", " falling ", " high limit ", " lower bound ", " card limit " and with these signals, whether decision drives forceful electric power topworks, makes master loop connect load.Main control loop is that three-phase supply, load are motor.Embodiment as shown in Figure 7; (1) is that " just changeing " contactless coil, (2) are that " counter-rotating " contactless coil, (3) are the starting contactor coil among Fig. 7; JZ, JF, JQ are respectively the contact of " just changeing ", " counter-rotating ", " starting " rly., and JG, JD, JK are respectively the contact of " high limit ", " lower bound ", " card limit " protective relay.
Single-tank control cabinet for electrolysis of aluminium provided by the invention has following advantage:
1, adopts metallic seal casing and shielding cable can prevent the external electromagnetic interference and the leakage of electrical noise own effectively, can in high dust and complicated abominable operating environment, run well.
2, because all disposing the present invention, each electrolyzer carries out single groove control, even the also unlikely influence of indivedual electrolyzer faults normal operation is completely arranged.
3, design of the present invention has taken into account tolerance, fault-tolerant and electromagnetic compatibility, thereby has improved reliability, modular organization for the debugging and maintenance convenience is provided.
4, the signal of " the high limit " of protection circuit, " lower bound ", " card limit " depends on the initial protion of bath voltage input; there be not any contact with computer; even computer of the present invention breaks down, electrolyzer can be avoided the generation of serious accident under the protection of holding circuit of the present invention.
5, the present invention changes a little and can be used as also independently that instrumentation uses separately.
Claims (4)
1, a kind ofly form by supplying unit, control section, display part and output, it is characterized in that by micro-processor controlled single-tank control cabinet for electrolysis of aluminium:
The microcomputer of a, control section selects for use micro-chip as control center, and each electrolyzer is carried out single loop control;
The data gathering of the input of b, control section is to adopt integration type electric voltage frequency switch technology.
2, single-tank control cabinet for electrolysis of aluminium according to claim 1 is characterized in that supplying unit adopts inductance capacitor filtering, all is added with shielding case surpasses isolation processing between the elementary of supply transformer and inferior inter-stage, secondary each winding.
3, single-tank control cabinet for electrolysis of aluminium according to claim 1, it is characterized in that controlling the micro-chip that microcomputer selects for use can be 8039 micro-chips.
4, single-tank control cabinet for electrolysis of aluminium according to claim 1 is characterized in that the display part can select charactron for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN89107353A CN1052153A (en) | 1989-12-01 | 1989-12-01 | Single-tank control cabinet for electrolysis of aluminium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN89107353A CN1052153A (en) | 1989-12-01 | 1989-12-01 | Single-tank control cabinet for electrolysis of aluminium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1052153A true CN1052153A (en) | 1991-06-12 |
Family
ID=4857183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN89107353A Pending CN1052153A (en) | 1989-12-01 | 1989-12-01 | Single-tank control cabinet for electrolysis of aluminium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1052153A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100430524C (en) * | 2004-06-17 | 2008-11-05 | 孙滕谌 | Aluminium electrolytic tank combination method and its device |
| CN115552056A (en) * | 2020-05-12 | 2022-12-30 | 艾思玛太阳能技术股份公司 | Method for operating an electrolyzer, connecting circuit, rectifier and electrolysis installation for carrying out said method |
-
1989
- 1989-12-01 CN CN89107353A patent/CN1052153A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100430524C (en) * | 2004-06-17 | 2008-11-05 | 孙滕谌 | Aluminium electrolytic tank combination method and its device |
| CN115552056A (en) * | 2020-05-12 | 2022-12-30 | 艾思玛太阳能技术股份公司 | Method for operating an electrolyzer, connecting circuit, rectifier and electrolysis installation for carrying out said method |
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| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |