CN203592126U - Molten metal face protection control device of holding furnace - Google Patents
Molten metal face protection control device of holding furnace Download PDFInfo
- Publication number
- CN203592126U CN203592126U CN201320829709.3U CN201320829709U CN203592126U CN 203592126 U CN203592126 U CN 203592126U CN 201320829709 U CN201320829709 U CN 201320829709U CN 203592126 U CN203592126 U CN 203592126U
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- holding furnace
- molten metal
- control device
- probe
- protection control
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Abstract
The utility model relates to the technical field of automatic control, in particular to a molten metal face protection control device of a holding furnace. The molten metal face protection control device comprises an upright support, an infrared distance meter and a mechanical protection device, wherein the mechanical protection device is arranged on an upright supporting rod of the upright support and comprises a crank, a lifting mechanism, a heat insulation plate and a probe, the probe is perpendicularly and fixedly arranged on the heat insulation plate which is movably arranged on the lifting mechanism, and the crank rotates to drive the heat insulation plate to move up and down. The mechanical protection device is arranged, compared with the prior art, when signals of the infrared distance meter are in a mess due to dust and other factors, molten metal is added to a flowing groove from the holding furnace continuously and molten metal in the flowing groove makes contact with the probe, the mechanical protection device sends out signals to enable the holding furnace to stop adding molten metal to the flowing groove, the accident that molten metal overflows from the flowing groove is effectively avoided, and loss of enterprises is reduced.
Description
Technical field
The utility model relates to technical field of automatic control, particularly a kind of metal bath surface of holding furnace protection control device.
Background technology
In the production process of aluminium alloy heavy metal processing industry, aluminium liquid out enters Rose Box and degasification tank through chute from holding furnace, then chew by roll and carry out continuous casting and rolling through casting, the aluminium liquid amount of feeding that requires holding furnace to supply with in the middle of this process must be continous-stable, thereby the quality that can guarantee to produce product, this has just proposed stricter requirement to the automatic rollover control system of holding furnace.
The automatic rollover control system of existing holding furnace is to be irradiated on aluminium liquid liquid level by infrared ambulator, enter PLC system by the variation transmission input signal that detects liquid level, then the analog voltage control signal that by PLC user program, goal-selling liquid level is compared to output-10V～10V after PID calculation process is to servo valve, drive again the continuous automatic lifting of holding furnace lift cylinders control holding furnace by servo valve, reach desirable control expection production effect.
But automatic control system is not omnipotent after all, in long-term production process, always there will be such or such unpredictable problem, especially the casting workshop moment is in high temperature production, therefore dust is larger, pollute also large, the material such as dust can be blocked the infrared emission head of infrared range-measurement system like this, affects the accuracy of signal, and when roasting chute, temperature is very high, the temperature that is radiated rangefinder is also high, so not only, to having brought discount the service life of rangefinder, also can make jitter, be exactly because the artificial factor that there will be that can not exempt from the middle of production technology operating process is encountered the infrared ray of rangefinder transmitting in addition in production process, thereby this this factor all may cause, control signal is disorderly causes holding furnace cannot accurately judge liquid level, automatic control system may be always in automatic liter or the state that automatically falls, thereby cause the accident that high temperature aluminum liquid overflows from chute mouth, and after each accident appearance, it is gently direct economic loss, heavy may lead damage stove, damage control cables, even cause casualties, bring huge economic loss to enterprise.
Utility model content
The utility model is flowed through out from holding furnace in the process that casting chews in order to solve current high temperature aluminum liquid; because being disturbed, the signal of rangefinder cause high temperature aluminum hydrorrhea to go out; damage equipment or cause casualties, brings the problem of huge economic loss and the metal bath surface protection control device of a kind of holding furnace of providing to enterprise.
For reaching above-mentioned functions, the technical scheme that the utility model provides is:
A kind of metal bath surface protection control device of holding furnace, comprise the stand type support on the chute side that is arranged on holding furnace, the top of described stand type support is provided with infrared range-measurement system, described infrared range-measurement system be positioned at described chute directly over, the metal bath surface protection control device of described holding furnace also comprises a Machine guarding, described Machine guarding is arranged on the vertical pole of described stand type support, described Machine guarding comprises crank, elevating mechanism, thermal insulation board and probe, described probe is vertically fixedly installed on thermal insulation board, described thermal insulation board is movably arranged on described elevating mechanism, described crank drives described thermal insulation board to move up and down while rotation.
Preferably, described elevating mechanism comprises the first worm screw, the second worm and worm wheel, described the first worm screw and described worm gear composition worm-drive group, described the second worm screw is fixedly connected with described worm gear, described the second worm screw and described thermal insulation board are connected with a joggle, and described the first worm screw is fixedly connected with described crank.
Preferably, the quantity of described probe is 2.
Preferably, described probe is that diameter is the stainless steel strip of 5mm～15mm.
The beneficial effects of the utility model are: by Machine guarding is set; compare with existing technology; when the signal that causes infrared range-measurement system test due to factors such as dusts gets muddled; cause thermal insulation furnace body constantly in chute, to add molten metal; in the time that the molten metal in chute contacts with probe, Machine guarding will send signal, makes thermal insulation furnace body stop adding molten metal in chute; thereby effectively prevent that molten metal from overflowing the accident of chute, reduced the loss of enterprise.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model coordinates with holding furnace;
Fig. 2 is the structural representation of elevating mechanism.
The specific embodiment
Below in conjunction with accompanying drawing 1 and accompanying drawing 2, the utility model is further elaborated:
The metal bath surface protection control device of a kind of holding furnace as shown in Figure 1, comprise the stand type support 2 on chute 1 side that is arranged on holding furnace, the top of stand type support 2 is provided with infrared range-measurement system 3, infrared range-measurement system 3 be positioned at chute 1 directly over, the metal bath surface protection control device of holding furnace also comprises a Machine guarding 4, Machine guarding 4 is arranged on the vertical pole 21 of stand type support 2, Machine guarding 4 comprises crank 41, elevating mechanism 42, 43 and 2 probes 44 of thermal insulation board, probe 44 is vertically fixedly installed on thermal insulation board 43, thermal insulation board 43 is movably arranged on elevating mechanism 42, crank 41 drives described thermal insulation board 43 to move up and down while rotation.Molten metal 5 enters in chute 1 through drainage trough 1 from thermal insulation furnace body 6 topples over out, when work, controls the height of probe 44 by rotating crank 41, thereby determines the limiting altitude of the liquid level of the interior molten metal 5 of chute 1.
As shown in Figure 2, elevating mechanism 42 comprises the first worm screw 421, the second worm screw 422 and worm gear 423, the first worm screw 421 and worm gear 423 form worm-drive group, the second worm screw 422 is fixedly connected with worm gear 423, the second worm screw 422 and thermal insulation board 43 are connected with a joggle, the first worm screw 421 is fixedly connected with crank 41, in the time rotating crank 41, can drive the first worm screw 421 to rotate, and finally drives rising or the decline of probe 44 by the engaged transmission between above-mentioned each parts.
In the present embodiment, probe 44 is that diameter is the stainless steel strip of 5mm～15mm, stainless steel strip is not easy bending or damaged while clearing up at ordinary times the operations such as chute 1 direct labor, thereby affect the degree of accuracy highly regulating, probe 44 can not baked generation corrosion easily and affect accuracy of detection because of high temperature or fire in long-term use procedure on the other hand.
The above embodiment, it is preferred embodiments of the present utility model, be not to limit practical range of the present utility model, the equivalence of doing according to structure, feature and principle described in the utility model claim therefore all changes or modifies, and all should be included in the utility model patent claim.
Claims (4)
1. the metal bath surface of holding furnace protection control device, comprise the stand type support (2) on chute (1) side that is arranged on holding furnace, the top of described stand type support (2) is provided with infrared range-measurement system (3), described infrared range-measurement system (3) be positioned at described chute (1) directly over, it is characterized in that: the metal bath surface protection control device of described holding furnace also comprises a Machine guarding (4), described Machine guarding (4) is arranged on the vertical pole (21) of described stand type support (2), described Machine guarding (4) comprises crank (41), elevating mechanism (42), thermal insulation board (43) and probe (44), described probe (44) is vertically fixedly installed on thermal insulation board (43), described thermal insulation board (43) is movably arranged on described elevating mechanism (42), described crank (41) drives described thermal insulation board (43) to move up and down while rotation.
2. the metal bath surface of holding furnace as claimed in claim 1 protection control device; it is characterized in that: described elevating mechanism (42) comprises the first worm screw (421), the second worm screw (422) and worm gear (423); described the first worm screw (421) and described worm gear (423) composition worm-drive group; described the second worm screw (422) is fixedly connected with described worm gear (423); described the second worm screw (422) and described thermal insulation board (43) are connected with a joggle, and described the first worm screw (421) is fixedly connected with described crank (41).
3. the metal bath surface of holding furnace as claimed in claim 1 or 2 protection control device, is characterized in that: the quantity of described probe (44) is 2.
4. the metal bath surface of holding furnace as claimed in claim 3 protection control device, is characterized in that: described probe (44) is that diameter is the stainless steel strip of 5mm～15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320829709.3U CN203592126U (en) | 2013-12-12 | 2013-12-12 | Molten metal face protection control device of holding furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320829709.3U CN203592126U (en) | 2013-12-12 | 2013-12-12 | Molten metal face protection control device of holding furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203592126U true CN203592126U (en) | 2014-05-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320829709.3U Expired - Fee Related CN203592126U (en) | 2013-12-12 | 2013-12-12 | Molten metal face protection control device of holding furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203592126U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109782685A (en) * | 2019-01-15 | 2019-05-21 | 南京云海特种金属股份有限公司 | A kind of aluminium bar casting monitoring alarm device |
-
2013
- 2013-12-12 CN CN201320829709.3U patent/CN203592126U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109782685A (en) * | 2019-01-15 | 2019-05-21 | 南京云海特种金属股份有限公司 | A kind of aluminium bar casting monitoring alarm device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140514 Termination date: 20141212 |
|
| EXPY | Termination of patent right or utility model |