CN104174828A - Stripping failure detection, alarming and secondary knocking unit for 20kg aluminum ingot continuous caster - Google Patents
Stripping failure detection, alarming and secondary knocking unit for 20kg aluminum ingot continuous caster Download PDFInfo
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- CN104174828A CN104174828A CN201410417174.8A CN201410417174A CN104174828A CN 104174828 A CN104174828 A CN 104174828A CN 201410417174 A CN201410417174 A CN 201410417174A CN 104174828 A CN104174828 A CN 104174828A
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Abstract
The invention relates to the technical field of aluminum smelting, in particular to a stripping failure detection, alarming and secondary knocking unit for a 20kg aluminum ingot continuous caster. The stripping failure detection, alarming and secondary knocking unit comprises a secondary knocking device, a stripping failure detector and an electrical control device. The stripping failure detection, alarming and secondary knocking unit has the advantages that the unit is capable of accurately knocking an aluminum ingot failed to be stripped, the unit is ingeniously designed, compactly structured and highly automated in the limited space of the 20kg aluminum ingot continuous caster, the unit allows accurate stripping by knocking, the major safety hazard that stripping failure of the aluminum ingot causes explosion of molten aluminum is eliminated, and the unit is applicable to a production line of 20kg aluminum ingot continuous casters in the industry of aluminum electrolysis.
Description
Technical field
The present invention relates to aluminum smelting technology technical field, specifically relate to a kind of 20kg aluminium ignot continuous casting machine not demoulding detection alarm and two-hit device.
Background technology
In 20kg aluminium ingot production process, due to mould surface exist crackle or mold temperature too high, can cause the aluminium ingot in mold not accepting the smooth demoulding in position after the demoulding is for the first time hit, producers do not find again in time, will not there is primary aluminum and overflow in a large number mold in the mold of the demoulding in the time moving to pouring position, enter in the bosh of casting machine bottom, in the time there is above-mentioned situation, production line is shutoff stove eye pause machine promptly, and dismantle mold the aluminium that emits in tank is removed totally, the blow-on product that looks unfamiliar again, so not only cause waste product and bulk aluminium to increase, and exist high temperature aluminum liquid and contact the major safety risks of blasting with cooling water, having had a strong impact on casting machine normally carries out.
My foundry of company 1～December in 2012 by statistics, because causing, the not demoulding of aluminium ingot emit aluminium to amount to 48 times, emit waste product that aluminium shutoff stove eye and secondary blow-on eye produce and bulk aluminium on average at 1760kg/ time at every turn, each processing emitted aluminium fault required time average out to 40 minutes, emit waste product and the bulk aluminium that aluminium produces for 48 times to reach 84480kg the whole year, the processing time adds up to 32 hours.
1, economic loss: waste product aluminium ingot and bulk aluminium ingot while melting down remelting, produce loss in 40 ‰ left and right, it is 84480kg × 40 ‰=3379kg that annual waste product and bulk aluminium melt down loss, by ton aluminium price 15000 yuan of calculating, annual failure costs is 3.379t × 15000 yuan=50685 yuan.
2, the labour intensity that has increased employee makes to produce and can not carry out smoothly.
3,20kg continuous casting machine is being deposited high temperature aluminum liquid and is being contacted the major safety risks of blasting with cooling water.
Summary of the invention
The technical problem to be solved in the present invention is the deficiency existing for prior art, provides a kind of automaticity high, can realize 20kg aluminium ignot continuous casting machine not demoulding detection alarm and the two-hit device of the secondary precision strike demoulding.
A kind of 20kg aluminium ignot continuous casting machine not demoulding detection alarm of the present invention and two-hit device are achieved by following technical proposals: a kind of 20kg aluminium ignot continuous casting machine not demoulding detection alarm and two-hit device comprise two-hit device, not stripping detector and electric apparatus control apparatus
Described not stripping detector comprises casting machine connecting plate, mold, detection floral disc, detects floral disc bearing, detects floral disc rotating shaft, weight arm rotating shaft, weight arm support, sensor stand, casting machine frame, weight arm, not demoulding detection signal sensor 1ck1, demoulding aluminium ingot not, described weight arm middle-end is fixed on weight arm support by weight arm rotating shaft, weight arm leading section is fixedly installed detection floral disc by detecting floral disc bearing and detecting floral disc rotating shaft, weight arm rearward end arranges balancing weight, and weight arm support is fixed in casting machine frame; Described not demoulding detection signal sensor 1ck1 is fixed on sensor stand upper end, and not demoulding detection signal sensor 1ck1 is connected by detection streamer with PLC, and sensor stand is fixed on weight arm support one side in casting machine frame;
Described two-hit device comprises cylinder, cylinder rotating shaft, crankshaft, hit crank, attacking head, crank support, air cylinder support, balance staff, electromagnetism-gas-driving valve, described strike crank is articulated and connected by crankshaft and crank support upper end, hit crank leading section and be fixedly installed attacking head, hitting crank rearward end is articulated and connected by cylinder rotating shaft and cylinder, cylinder is fixed on casting machine frame side by air cylinder support, air cylinder support outer end is fixedly connected with by balance staff with cylinder middle part, the air inlet of cylinder is connected with air inlet and the gas returning port of electromagnetism-gas-driving valve respectively with gas returning port,
Described electrical control gear comprises local framework, expansion cable, Programme Line, Programmable Logic Controller, PLC controller, audible-visual alarm lamp, strike electromagnetic valve coil, the not demoulding strike number of exciting sensor 1CK2, described local framework is connected with Programmable Logic Controller by Programme Line, between local framework, connect by expansion cable, between the output module of described PLC controller and executive component, install the auxiliary reclay KA1 being installed in PLC cabinet additional; The not demoulding strike excitation signal sensor 1ck2 being installed on casting machine spindle nose counter is connected with PLC controller input, PLC controller one output is connected with auxiliary reclay KA2 coil, and auxiliary reclay KA2 normal opened contact is connected with strike electromagnetic valve coil; Another output of PLC controller is connected with the coil of auxiliary reclay KA1, and auxiliary reclay KA1 normal opened contact is connected with not demoulding audible-visual alarm lamp.
A kind of 20kg aluminium ignot continuous casting machine not demoulding detection alarm of the present invention and two-hit device have following beneficial effect compared with prior art: 20kg aluminum ingot continuous-casting machine not demoulding detection alarm of the present invention and two-hit system can be hit not demoulding aluminium ingot accurately, and the present invention is in the 20kg aluminum ingot continuous-casting machine confined space, deft design, compact conformation, automaticity are high, can realize the secondary precision strike demoulding, the present invention has the following advantages:
1, can reducing every year waste product and bulk, to melt down loss be 84480kg × 40 ‰=3379kg, by 15000 yuan of calculating of ton aluminium price, every year can create beneficial result is 3.379t × 15000 yuan=50685 yuan;
2, can reduce employee's labour intensity, make to produce more smooth and easy;
3, thoroughly eliminated due to the not demoulding of aluminium ingot, and the equipment major safety risks that cause aluminium liquid to explode;
4, the present invention is applicable to aluminum electrolysis industry 20kg aluminum ingot continuous-casting machine production line.
Brief description of the drawings
A kind of 20kg aluminium ignot continuous casting machine not demoulding detection alarm of the present invention and two-hit device have following accompanying drawing:
Fig. 1 is a kind of 20kg aluminium ignot continuous casting machine not demoulding detection alarm of the present invention and not stripping detector Light Condition structural representation of two-hit device;
Fig. 2 is a kind of 20kg aluminium ignot continuous casting machine not demoulding detection alarm of the present invention and not stripping detector operating state structural representation of two-hit device;
Fig. 3 is the two-hit apparatus structure schematic diagram of a kind of 20kg aluminium ignot continuous casting machine of the present invention not demoulding detection alarm and two-hit device;
Fig. 4 is a kind of 20kg aluminium ignot continuous casting machine not demoulding detection alarm of the present invention and two-hit device PLC hardware configuration structure schematic diagram;
Fig. 5 is a kind of 20kg aluminium ignot continuous casting machine not demoulding detection alarm of the present invention and two-hit device PLC controller wiring schematic diagram;
Fig. 6 is a kind of 20kg aluminium ignot continuous casting machine not demoulding detection alarm of the present invention and two-hit device electrical wiring schematic diagram;
Fig. 7 is a kind of 20kg aluminium ignot continuous casting machine not demoulding detection alarm of the present invention and two-hit device PLC controller trapezoid program structural representation;
Fig. 8 is a kind of 20kg aluminium ignot continuous casting machine not demoulding detection alarm of the present invention and two-hit device PLC controller output Import Address Table.
Wherein: 1, casting machine connecting plate; 2, mold; 3, five corner piece dishes; 4, five corner piece dish bearings; 5, five corner piece dish rotating shafts; 6, weight arm rotating shaft; 7, weight arm support; 8, sensor stand; 9, casting machine frame; 10, weight arm; 11, not demoulding inductosyn; 12, demoulding aluminium ingot not; 13, cylinder; 14, cylinder rotating shaft; 15, crankshaft; 16, hit crank; 17, attacking head; 18, crank support; 19, air cylinder support; 20, balance staff; 21, electromagnetism-gas-driving valve; 22, local framework; 23, expansion cable; 24, Programme Line; 25, PC; 26, PLC controller; 27, audible-visual alarm lamp; 28, hit electromagnetic valve coil.
Detailed description of the invention
Below in conjunction with drawings and Examples, a kind of 20kg aluminium ignot continuous casting machine not demoulding detection alarm of the present invention and two-hit device technique scheme are further described.
As Figure 1-Figure 8, a kind of 20kg aluminium ignot continuous casting machine not demoulding detection alarm and two-hit device, comprise two-hit device, not stripping detector and electric apparatus control apparatus,
Described not stripping detector comprises casting machine connecting plate 1, mold 2, detect floral disc 3, detect floral disc bearing 4, detect floral disc rotating shaft 5, weight arm rotating shaft 6, weight arm support 7, sensor stand 8, casting machine frame 9, weight arm 10, not demoulding detection signal sensor 1,ck1 11, not demoulding aluminium ingot 12, described weight arm 10 middle-ends are fixed on weight arm support 7 by weight arm rotating shaft 6, weight arm 10 leading sections are fixedly installed detection floral disc 3 by detecting floral disc bearing 4 and detecting floral disc rotating shaft 5, weight arm 10 rearward end arrange balancing weight 101, weight arm support 7 is fixed in casting machine frame 9, described not demoulding detection signal sensor 1,ck1 11 is fixed on sensor stand 8 upper ends, and not demoulding detection signal sensor 1,ck1 11 is connected by detection streamer with PLC, and sensor stand 8 is fixed on weight arm support 7 one sides in casting machine frame 9,
Described two-hit device comprises cylinder 13, cylinder rotating shaft 14, crankshaft 15, hit crank 16, attacking head 17, crank support 18, air cylinder support 19, balance staff 20, electromagnetism-gas-driving valve 21, described strike crank 16 is articulated and connected by crankshaft 15 and crank support 18 upper ends, hit crank 16 leading sections and be fixedly installed attacking head 17, hitting crank 16 rearward end is articulated and connected by cylinder rotating shaft 14 and cylinder 13, cylinder 13 is fixed on casting machine frame 9 sides by air cylinder support 19, air cylinder support 19 outer ends are fixedly connected with by balance staff 20 with cylinder 13 middle parts, the air inlet of cylinder 13 is connected with air inlet and the gas returning port of electromagnetism-gas-driving valve 21 respectively with gas returning port,
Described electrical control gear comprises local framework 22, expansion cable 23, Programme Line 24, Programmable Logic Controller 25, PLC controller 26, audible-visual alarm lamp 27, strike electromagnetic valve coil 28, not demoulding strike excitation signal sensor 1CK2, described local framework 22 is connected with Programmable Logic Controller 25 by Programme Line 24, between local framework 22, connect by expansion cable 23
Between the output module of described PLC controller 26 and executive component, install the auxiliary reclay KA1 being installed in PLC cabinet additional; The not demoulding strike excitation signal sensor 1ck2 being installed on casting machine spindle nose counter 3 is connected with PLC controller 26 inputs, PLC controller 26 1 outputs are connected with auxiliary reclay KA2 coil, and auxiliary reclay KA2 normal opened contact is connected with strike electromagnetic valve coil 28; PLC controller 26 another outputs are connected with the coil of auxiliary reclay KA1, and auxiliary reclay KA1 normal opened contact is connected with not demoulding audible-visual alarm lamp 27.
Embodiment 1.
The feature of producing for casting machine, by repeatedly field assay, research and test of many times, determines that never demoulding detection alarm device and two-hit system two broad aspect start with, and automatically controls by electric control loop and PLC, allows the aluminium ingot demoulding of the not demoulding.
mechanical part
Mechanical part is by stripping detector and two-hit service system do not form, wherein the Main Function of stripping detector is not when aluminium ingot is after a percussion system hits, the not demoulding, checkout gear detects not demoulding aluminium ingot automatically, and sends signal to control system; The effect of two-hit system is when receiving after the signal of checkout gear, and by the control of the electric execution original paper of PLC, two-hit system acting, makes the aluminium ingot demoulding.
Stripping detector does not form by detecting rotating disk, frame, support, weight arm, sensor, be installed on casting machine frame place, its course of action is as shown in Figure 1, to detect rotating disk and rotate according to mold traffic direction in the time of normal operation, not demoulding detecting sensor 1CK1 is failure to actuate, but in the time having not demoulding aluminium ingot, as shown in Figure 2, depress and detect rotating disk 3, detect rotating disk 3 and make counterweight handle 10 produce upper mobile work, make not demoulding detecting sensor 1CK1 action, send detection signal to PLC.
Two-hit executing agency is for cost-saving and utilize existence conditions, repeatedly prove through scene and test, determine to adopt pneumatic percussion system, and hit at mold back, executing agency as shown in Figure 3, executing agency is by attacking head, hit crank, support, hit cylinder, the compositions such as electromagnetism-gas-driving valve, be arranged on checkout gear rear side, be welded in casting machine frame, in the time that checkout gear detects not demoulding aluminium ingot, send signal to PLC control system, control system is through logic judgement and analysis, send output signal, drive and hit magnetic valve, after magnetic valve action, under the effect of source of the gas, strike cylinder stretches out, attacking head action, make the aluminium ingot demoulding.Because adopting the mode of hitting at mold back, through field experiment, operational effect is better.
electric control system
20kg aluminum ingot continuous-casting machine control system adopts the Programmable Logic Controller SLC-500 of American AB company as its control core, use switching value digital input and output modules and analog module to carry out data acquisition to field control information, the central microprocessor (CPU) that passes through again PLC carries out arithmetic sum logical operation by user program, its operation result is used for refreshing output data register, and each executing agency that exports control signal control casting machine completes compulsory exercise on request, thus realize 20kg aluminum ingot continuous-casting machine intellectuality and automation control.The PLC hardware configuration of this system as shown in Figure 4.This is transformed mainly by utilizing original control system input and output node for subsequent use to realize its function.For reliability, the sensitivity of safety action; input pickup adopts noncontact inductance type transducer; consider that original paper is carried out in output driving and PLC switch board is far away; circuit is longer; in order to protect PLC output module; between PLC output module and executive component, install auxiliary reclay additional, auxiliary reclay is installed in PLC cabinet.
1ck2 hits excitation signal sensor for the not demoulding, is installed on casting machine spindle nose counter, and its effect is when every block of aluminium ingot is through out-of-date, sends induced signal one time, 1ck1 is not demoulding detection signal sensor, be installed on not stripping detector support place, when aluminium ingot being detected, send induced signal, its operating principle is, when aluminium ingot in hit each time after aluminium ingot mould → mold can not the demoulding → not demoulding detect (sensor 1CK1 closure, lamp is bright) to PLC transmission input signal → PLC, output makes auxiliary reclay KA1 coil obtain electric, be that normal switching of KA1 closed, make not demoulding alarm lamp bright, produce not demoulding sound and light alarm signal, sensor 1CK2 closure in casting machine operation → counter simultaneously, lamp is bright, sending input signal → PLC output to PLC makes auxiliary reclay KA2 coil obtain electric, KA2 is normal to be opened and closed to close and makes to hit electromagnetic valve coil and obtain electric, it is two-hit action (mold that attacking head accurately knocks the not demoulding makes the aluminium ingot demoulding immediately).As shown in Figure 5, Figure 6.
sound and light alarm part
After the not demoulding detects not demoulding aluminium ingot, not demoulding detecting sensor 1CK1 sends signal to PLC input point I:7/7, program 25 step actions, output signal is put not demoulding warning O:14/5 action, drive auxiliary reclay KA1 action, the action of KA1 auxiliary reclay auxiliary node, send sound and light alarm signal, the warning of the not demoulding simultaneously O:14/5 moves and makes to report to the police time-delay closing T4:21 action, after 30 seconds, the set of warning time-delay closing T4:21/DN completion bit, make output signal put not demoulding warning O:14/5 release, alarm signal automatically terminates, see program 26, 27 steps.As shown in Figure 7, Figure 8.
not demoulding two-hit part
In the time that mold walking counter detecting sensor 1CK2 sends signal to PLC input point I:8/7, B3:7/2 action is hit in its not demoulding, and holding time is 0.4 second, sees program 28,29 steps; In the time that not demoulding warning O:14/5 and the not demoulding are hit B3:7/2 and are moved simultaneously, output point O:15/13 action is hit in the not demoulding, drive auxiliary reclay KA2 action, the action of KA2 auxiliary reclay auxiliary node, drive air-powered electromagnetic valve events, the action of strike cylinder, by adjusting the front and back position of 1CK2, the mold that attacking head accurately knocks the not demoulding makes the aluminium ingot demoulding immediately; Can find out that 1CK1 sends signal in the time demoulding aluminium ingot being detected not from program, within 30 second time, attacking head is every during through an aluminium ingot at 1CK2, sends stroke signal, maintain 0.4 second after attacking head return.
Native system is in the 20kg aluminum ingot continuous-casting machine confined space, and compact conformation, deft design, automaticity are high, can realize the secondary precision strike demoulding, and have following meaning:
1. can reducing every year waste product and bulk, to melt down loss be 84480kg × 40 ‰=3379kg, by 15000 yuan of calculating of ton aluminium price, every year can create beneficial result is 3.379t × 15000 yuan=50685 yuan;
2. while avoiding in 20kg aluminium ingot production process the not demoulding, there is primary aluminum and overflow in a large number mold and pierce the aluminium liquid causing in the tank of casting machine bottom and splash and explosion accident, for the normal production of casting machine provides guarantee.
3. reduce maintainer's labour intensity and time, improved casting machine automation function.
4. a kind of 20kg aluminium ignot continuous casting machine not demoulding detection alarm of the present invention and two-hit device are applicable to aluminum electrolysis industry 20kg aluminum ingot continuous-casting machine production line.
Claims (1)
1. the not demoulding of 20kg aluminium ignot continuous casting machine detection alarm and a two-hit device, comprise two-hit device, not stripping detector and electric apparatus control apparatus, it is characterized in that:
Described not stripping detector comprises casting machine connecting plate (1), mold (2), detect floral disc (3), detect floral disc bearing (4), detect floral disc rotating shaft (5), weight arm rotating shaft (6), weight arm support (7), sensor stand (8), casting machine frame (9), weight arm (10), not demoulding detection signal sensor 1ck1(11), not demoulding aluminium ingot (12), described weight arm (10) middle-end is fixed on weight arm support (7) by weight arm rotating shaft (6), weight arm (10) leading section is fixedly installed detection floral disc (3) by detecting floral disc bearing (4) and detecting floral disc rotating shaft (5), weight arm (10) rearward end arranges balancing weight (101), weight arm support (7) is fixed in casting machine frame (9), described not demoulding detection signal sensor 1ck1(11) be fixed on sensor stand (8) upper end, not demoulding detection signal sensor 1ck1(11) be connected by detection streamer with PLC, sensor stand (8) is fixed on upper weight arm support (7) one sides of casting machine frame (9),
Described two-hit device comprises cylinder (13), cylinder rotating shaft (14), crankshaft (15), hit crank (16), attacking head (17), crank support (18), air cylinder support (19), balance staff (20), electromagnetism-gas-driving valve (21), described strike crank (16) is articulated and connected by crankshaft (15) and crank support (18) upper end, hit crank (16) leading section and be fixedly installed attacking head (17), hitting crank (16) rearward end is articulated and connected by cylinder rotating shaft (14) and cylinder (13), cylinder (13) is fixed on casting machine frame (9) side by air cylinder support (19), air cylinder support (19) outer end is fixedly connected with by balance staff (20) with cylinder (13) middle part, the air inlet of cylinder (13) is connected with air inlet and the gas returning port of electromagnetism-gas-driving valve (21) respectively with gas returning port,
Described electrical control gear comprises local framework (22), expansion cable (23), Programme Line (24), Programmable Logic Controller (25), PLC controller (26), audible-visual alarm lamp (27), strike electromagnetic valve coil (28), the not demoulding strike number of exciting sensor 1CK2, described local framework (22) is connected with Programmable Logic Controller (25) by Programme Line (24), between local framework (22), connect by expansion cable (23)
Between the output module of described PLC controller (26) and executive component, install the auxiliary reclay KA1 being installed in PLC cabinet additional; The not demoulding strike excitation signal sensor 1ck2 being installed on casting machine spindle nose counter (3) is connected with PLC controller (26) input, PLC controller (26) one outputs are connected with auxiliary reclay KA2 coil, and auxiliary reclay KA2 normal opened contact is connected with strike electromagnetic valve coil (28); Another output of PLC controller (26) is connected with the coil of auxiliary reclay KA1, and auxiliary reclay KA1 normal opened contact is connected with not demoulding audible-visual alarm lamp (27).
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| CN201410417174.8A CN104174828A (en) | 2014-08-23 | 2014-08-23 | Stripping failure detection, alarming and secondary knocking unit for 20kg aluminum ingot continuous caster |
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| CN201410417174.8A CN104174828A (en) | 2014-08-23 | 2014-08-23 | Stripping failure detection, alarming and secondary knocking unit for 20kg aluminum ingot continuous caster |
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Application publication date: 20141203 |