CN204438829U - A kind of electric forge furnace electric current automatic tracking control apparatus - Google Patents
A kind of electric forge furnace electric current automatic tracking control apparatus Download PDFInfo
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- CN204438829U CN204438829U CN201520034788.8U CN201520034788U CN204438829U CN 204438829 U CN204438829 U CN 204438829U CN 201520034788 U CN201520034788 U CN 201520034788U CN 204438829 U CN204438829 U CN 204438829U
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Abstract
The utility model relates to a kind of electric forge furnace electric current automatic tracking control apparatus, it combines the past of controlled volume, the information of present and following three aspects, control subject equipment, particularly dominate in process equipment electricity forge furnace at carbon raw, very accurate to the control in electric forge furnace current fluctuation interval, PID controller is installed in electric forge furnace control system, access electric forge furnace current feedback input signal, discharge mechanism drive singal is exported by PID controller, realize from motion tracking, thus ensure procedure quality.It is simple that this control method has structure, realizes easily, stability advantages of higher.
Description
Technical field
The utility model relates to a kind of PID controller, is particularly adapted in electric forge furnace Automated condtrol loop, and the steady in current work interval controls.
Background technology
In recent years, along with the continuous maximization development of aluminium cell, produce to aluminium negative electrode and propose new requirement, impel production high-quality cathode product imperative, Development and Production high-quality feedstocks, just become the new problem that current carbon element enterprise produces high-end product.Electric forging coal is the primary raw material producing aluminium negative electrode, because its intrinsic technological principle--anthracite produces resistance heat by electric current, discharge fugitive constituent, reduce resistivity, thus reach the object of calcining, and the height of resistivity decides the height of burning quality, it is mainly realized by electrical current density, in prior art, the control of electrical current is generally adopt manual adjustment or regulate with time Control, its current fluctuation scope is often at about 2KA, thus it is larger to result in output electric forging coal resistivity waving interval, the problems such as instability, a kind of electric forge furnace electric current automatic tracking control apparatus of developmental research for this reason, thus ensure the stability of electrical current, the production of homogeneous high-quality electric forging coal can be ensured.
Summary of the invention
Comparatively large for electric forging coal resistivity waving interval, the problems such as instability, a kind of electric forge furnace electric current automatic tracking control apparatus of developmental research.Solve the vacancy of above-mentioned electric furnace control aspect, provide one can control electric furnace operating current fluctuation range, realize the control device from motion tracking.
A kind of electric forge furnace electric current automatic tracking control apparatus, comprise the direct current instrument transformer signal source of input current fluctuation signal, it is characterized in that the described output of direct current instrument transformer signal source is connected with the input of PID controller, the output of described PID controller is connected with the YQR-C type controller controlling discharge mechanism work.
Described one electricity forge furnace electric current automatic tracking control apparatus, is characterized in that the external alarm signal termination of described PID controller enters controlling alarm relaying loop.
Feature of the present utility model is: 1, structure is simple, and realizing easily, only needs increase by 1 PID adjuster, be communicated with by electric furnace current feedback signal, can realize automatic control with electric furnace discharge mechanism controller YQR-C drive singal.2, control accuracy is high, highly sensitive, when electric furnace operating current reaches process current, PID controller exports discharge mechanism drive singal, electric current is higher, material discharging machine rotating speed is higher, and when process current is lower than rated current, PID stops exporting discharge drive singal, material discharging machine quits work, the undulate quantity of operating current can control at rated current ± 0.5KA, and so just very big limit stabilizes the fluctuation of electric forging coal resistivity, reaches homogeneous and produces.3, automaticity is high, warning function is perfect, in conjunction with the process data function that PID controller is powerful, it is while realization controls automatically, the over range that can also realize technology controlling and process electric current is reported to the police, so just significantly reduce the post labour intensity of instrument work, effectively prevent the quality risk and security risk that bring because operating current is abnormal.
Accompanying drawing explanation
Fig. 1 is electric forge furnace electric current automatic tracking control apparatus fundamental diagram.
Detailed description of the invention
As shown in the figure, current transformer feedback signal 4-20mA is accessed PID controller signal input part, namely the input signal source of PID controller is outputed signal by electric forge furnace Current Transformer Secondary provided.PID signal is exported 4-20mA and access YQR-C material discharging machine controller automatic signal 4-20mA input.Discharge mechanism YQC-C executive signal is converted to through PID processor, composition automatic control loop by current feedback signal.External for PID alarm signal termination is entered controlling alarm relaying loop, circuit all connects well, in PID adjuster panel, set electric forge furnace technique perform electric current, abnormal alarm parameter, after all setting parameters are good, YQR-C material discharging machine controller automatic switch can be opened, namely proceed to the automatic tracking mode of electric forge furnace operating current.
Claims (2)
1. an electric forge furnace electric current automatic tracking control apparatus, comprise the direct current instrument transformer signal source of input current fluctuation signal, it is characterized in that the described output of direct current instrument transformer signal source is connected with the input of PID controller, the output of described PID controller is connected with the YQR-C type controller controlling discharge mechanism work.
2. one according to claim 1 electric forge furnace electric current automatic tracking control apparatus, is characterized in that the external alarm signal termination of described PID controller enters controlling alarm relaying loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520034788.8U CN204438829U (en) | 2015-01-19 | 2015-01-19 | A kind of electric forge furnace electric current automatic tracking control apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520034788.8U CN204438829U (en) | 2015-01-19 | 2015-01-19 | A kind of electric forge furnace electric current automatic tracking control apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204438829U true CN204438829U (en) | 2015-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201520034788.8U Active CN204438829U (en) | 2015-01-19 | 2015-01-19 | A kind of electric forge furnace electric current automatic tracking control apparatus |
Country Status (1)
| Country | Link |
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| CN (1) | CN204438829U (en) |
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2015
- 2015-01-19 CN CN201520034788.8U patent/CN204438829U/en active Active
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 031300 Gedi village, Liangdu Town, Lingshi County, Jinzhong City, Shanxi Province Patentee after: SHANXI JINYANG CARBON Co.,Ltd. Address before: 031300 No.133, Changqing Road West, Lingshi County, Jinzhong City, Shanxi Province Patentee before: SHANXI JINYANG CARBON Co.,Ltd. |