CN201636111U - Crust breaking air cylinder with intelligent aluminum electrolytic cell - Google Patents
Crust breaking air cylinder with intelligent aluminum electrolytic cell Download PDFInfo
- Publication number
- CN201636111U CN201636111U CN2009202827403U CN200920282740U CN201636111U CN 201636111 U CN201636111 U CN 201636111U CN 2009202827403 U CN2009202827403 U CN 2009202827403U CN 200920282740 U CN200920282740 U CN 200920282740U CN 201636111 U CN201636111 U CN 201636111U
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- end cover
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- stop
- mechanical lock
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Abstract
The utility model relates to a crust breaking air cylinder with an intelligent aluminum electrolytic cell. A cylinder sleeve is mounted between a front end cover and a rear end cover; a piston is connected in the cylinder sleeve and fixed on a piston rod; a two-position five-way pneumatic control valve is arranged on the rear end cover; a forward stop two-position three-way pneumatic control valve front air pipe base is arranged on the front end cover; a forward stop two-position three-way control valve rear air pipe base is arranged on the rear end cover; a forward stop two-position three-way control valve air duct is arranged on the forward stop two-position three-way control valve front air pipe base; a pressure relay is arranged on the rear end cover; the front end surface of the piston is connected with a buffer plunger, and the rear end surface of the piston is connected with a falling stop plunger; a triggering inclined plane which contracts backwards is arranged at the rear section of the falling stop plunger; a backward stop signal device is arranged on the rear end cover; a forward stop two-position three-way pneumatic control valve is arranged on the front end cover; and a mechanical lock device is arranged on the rear end cover. The crust breaking air cylinder has the advantages of convenient operation, random information feedback, long service life and the like.
Description
Technical field
The utility model relates to a kind of cylinder assembly, especially a kind of intelligent aluminium cell crust breaking cylinder.
Background technique
Before the utility model was made, aluminium manufacturer's control electrolytic bath crust breaking, blanking program were by the central control room control away from the scene.When crust breaking cylinder is not implemented broken shell, because effective monitoring can't be obtained in the control room, electrolytic bath alumina powder cutting agency will continue to carry out the blanking program, and the alumina powder raw material can't ensure and enter electrolytic bath aluminium liquid smoothly.Its two because working condition is abominable, factors such as high temperature, high dust and source of the gas mist of oil weak effect, the crust breaking cylinder Sealing is aging rapidly in a short time damaged, and crust breaking cylinder breaks down, and can't return behind the crust breaking, tup contacts with aluminium liquid for a long time, causes aluminium liquid purity to reduce.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of central control room that makes can in time receive effective broken shell, return information; Can in time send the intelligent aluminium cell crust breaking cylinder of breakdown maintenance instruction, Safety performance height, long service life.
The technological scheme that provides according to the utility model, described intelligent aluminium cell crust breaking cylinder, comprise front cover and rear end cover, swivel nut is installed on the rear end cover, between front cover and rear end cover, cylinder sleeve is installed, sealing slidely connects piston in the cylinder sleeve, be fixedly connected with piston rod on the piston, the front end of front cover is equipped with the end cap head, be provided with guide pin bushing in the end cap head, the piston rod sliding plug is in guide pin bushing, front end at piston rod is fixed with jaw and bearing pin, tracheae seat before on front cover, being fixed with, on rear end cover, be fixed with back tracheae seat, between preceding tracheae seat and back tracheae seat, air pipe is installed, on rear end cover, be provided with and preceding tracheae seat, the two-position five-way Pneumatic valve that back tracheae seat cooperates, on front cover, be provided with tracheae seat before the stop two-position three way Pneumatic valve that moves ahead, tracheae seat after being provided with the stop two-position three way Pneumatic valve that moves ahead on the rear end cover, tracheae seat and move ahead and be provided with the stop two-position three way Pneumatic valve air pipe that moves ahead between the stop two-position three way Pneumatic valve tracheae seat before the stop two-position three way Pneumatic valve that moves ahead, stop two-position three way Pneumatic valve air pipe is provided with on rear end cover and moves ahead, the pressure relay that air pipe cooperates, feature is: be connected with buffer plunger on the front-end face of piston, on the ear end face of piston, be connected with the falling stop plunger), the back segment of described falling stop plunger has the trigger ramp to aftershrinkage, on rear end cover, be provided with cooperate with described trigger ramp return the stop telltale, on front cover, be provided with the stop two-position three way Pneumatic valve that moves ahead, on rear end cover, be provided with mechanical lock device.
The described stop telltale that returns is included in the slide opening of offering on the rear end cover, at slide opening interpolation guide rod, guide rod is provided with spring, on rear end cover, be fixed with case, be provided with sensitive switch in the case, outer section at slide opening has internal thread, the adjusting nut that on this internal thread, is spirally connected, and described adjusting nut gland is on spring.
The described stop two-position three way Pneumatic valve that moves ahead is included in the hard-wired lower end cap in mounting hole left part of front cover, slipper seal is equipped with lower piston in the mounting hole of front cover, between lower end cap and lower piston, be provided with Returnning spring, lower piston is provided with sealing gasket, mounting hole left part sliding plug at front cover has valve rod, and the right part of valve rod is projection from the right side of front cover.
Offer three circumferential grooves on the described piston, the groove in the centre is embedded with supporting ring, and the groove in the supporting ring both sides is embedded with back-up ring, and a side of back-up ring circumferentially is embedded with cyclic sealing gasket, is connected to seal ring in the circumferential outer race of sealing gasket.
Described mechanical lock device is included in the cylinder-bore of offering on the rear end cover, the sealed sliding mechanical lock piston that is dynamically connected in the cylinder-bore, the mechanical lock piston is provided with the mechanical lock locking bar, be bolted with the mechanical lock end cap in the outer end of cylinder-bore, between mechanical lock piston and mechanical lock end cap, be provided with compressed mechanical lock spring, offer the mechanical lock air flue on rear end cover, the end outlet of described mechanical lock air flue is communicated with cylinder-bore, and the other end outlet of mechanical lock air flue is opened on the internal face of rear end cover.
Offer the locked groove that cooperates with the mechanical lock locking bar on the sidewall of described falling stop plunger.
The utlity model has characteristics such as easy and simple to handle, random information feedback, long working life.It possesses the information of automatic monitoring crust breaking point position, reentry point position.The application of some position signals collecting, can pass through alarm, other unusual fault such as accomplish that the very first time handles that top layer crust face is not broken, in time do not returned has solved and tup long-time delay under shell is subjected to high temperature and produces oxidation and come off to the influence of aluminium liquid purity and incur loss through delay the adverse consequences that maintenance waits generation.The utility model product is stable, reliable, and operating life significantly improves.Repair message in time feeds back, and maintenance cost reduces.
Description of drawings
Fig. 1 is a plan view of the present utility model.
Fig. 2 is a structure of piston schematic representation in the utility model.
Fig. 3 is that the C-C of Fig. 1 analyses and observe rotation diagram.
Fig. 4 is the D-D sectional view of Fig. 1.
Fig. 5 is that the D-D of Fig. 1 analyses and observe flipchart.
Embodiment
The utility model is described in further detail below in conjunction with concrete drawings and Examples.
As shown in the figure, the utility model is mainly by bearing pin 1; jaw 2; piston rod 3; guide pin bushing 4; front cover 5; preceding tracheae seat 6.1; back tracheae seat 6.2; air pipe 7; middle bearing pin; cylinder sleeve 9; buffer plunger 10; piston 11; supporting ring 12; rear end cover 13; falling stop plunger 14; two-position five-way Pneumatic valve 15; setting sleeve 16; sensitive switch 17; guide rod 18; spring 19; regulate nut 20; case 21; swivel nut 22; pressure relay 23; tracheae seat 24 behind the protective switch; buffering needle-valve 25; protective switch air pipe 26; valve rod 27; sealing gasket 28; lower piston 29; tracheae seat 30 before the protective switch; lower end cap 31; end cap head 32; mechanical lock piston 33; mechanical lock guide pin bushing 34; mechanical lock supporting ring 35; mechanical lock spring 36; mechanical lock end cap 37; back-up ring 38; sealing gasket 39; seal ring 40; Returnning spring 41; mechanical lock air flue 42; mechanical lock locking bar 43 constitutes with locked groove 44 parts such as grade.
This intelligence aluminium cell crust breaking cylinder, comprise front cover 5 and rear end cover 13, swivel nut 22 is installed on the rear end cover 13, between front cover 5 and rear end cover 13, cylinder sleeve 9 is installed, sealing slidely connects piston 11 in the cylinder sleeve 9, be fixedly connected with piston rod 3 on the piston 11, the front end of front cover 5 is equipped with end cap head 32, be provided with guide pin bushing 4 in the end cap head 32, piston rod 3 sliding plugs are in guide pin bushing 4, front end at piston rod 3 is fixed with jaw 2 and bearing pin 1, tracheae seat 6.1 before on front cover 5, being fixed with, on rear end cover 13, be fixed with back tracheae seat 6.2, between preceding tracheae seat 6.1 and back tracheae seat 6.2, air pipe 7 is installed, on rear end cover 13, be provided with and preceding tracheae seat 6.1, the two-position five-way Pneumatic valve 15 that back tracheae seat 6.2 cooperates, on front cover 5, be provided with tracheae seat 30 before the stop two-position three way Pneumatic valve that moves ahead, tracheae seat 24 after being provided with the stop two-position three way Pneumatic valve that moves ahead on the rear end cover 13, before the stop two-position three way Pneumatic valve that moves ahead, be provided with the stop two-position three way Pneumatic valve air pipe 26 that moves ahead between the tracheae seat 24 behind the tracheae seat 30 and the stop two-position three way Pneumatic valve that moves ahead, stop two-position three way Pneumatic valve air pipe 26 is provided with on rear end cover 13 and moves ahead, the pressure relay 23 that air pipe 7 cooperates, on the front-end face of piston 11, be connected with buffer plunger 10, on the ear end face of piston 11, be connected with falling stop plunger 14, the back segment of described falling stop plunger 14 has the trigger ramp to aftershrinkage, on rear end cover 13, be provided with cooperate with described trigger ramp return the stop telltale, on front cover 5, be provided with the stop two-position three way Pneumatic valve that moves ahead, on rear end cover 13, be provided with mechanical lock device.
The described stop telltale that returns is included in the slide opening of offering on the rear end cover 13, at slide opening interpolation guide rod 18, guide rod 18 is provided with spring 19, on rear end cover 13, be fixed with case 21, be provided with the sensitive switch 17 that cooperates with pressure relay 23 in the case 21, outer section at slide opening has internal thread, is spirally connected to regulate nut 20 on this internal thread, and described adjusting nut 20 glands are on spring 19.
The described stop two-position three way Pneumatic valve that moves ahead is included in the hard-wired lower end cap 31 in mounting hole left part of front cover 5, slipper seal is equipped with lower piston 29 in the mounting hole of front cover 5, between lower end cap 31 and lower piston 29, be provided with Returnning spring 41, lower piston 29 is provided with sealing gasket 28, mounting hole left part sliding plug at front cover 5 has valve rod 27, and the right part of valve rod 27 is projection from the right side of front cover 5.
On the sidewall of piston 11, offer some three circumferential grooves, groove in the centre is embedded with supporting ring 12, groove in supporting ring 12 both sides is embedded with back-up ring 38, and a side of back-up ring 38 is embedded with cyclic sealing gasket 39, is socketed with seal ring 40 on the sidewall of sealing gasket 39.
Described mechanical lock device is included in the cylinder-bore of offering on the rear end cover 13, the sealed sliding mechanical lock piston 33 that is dynamically connected in the cylinder-bore, mechanical lock piston 33 is provided with mechanical lock locking bar 43, the sidewall of mechanical lock piston 33 offers the ring-type cell body, be embedded with mechanical lock supporting ring 35 at this cell body, be bolted with mechanical lock end cap 37 in the outer end of cylinder-bore, between mechanical lock piston 33 and mechanical lock end cap 37, be provided with compressed mechanical lock spring 36, on rear end cover 13, offer mechanical lock air flue 42, the one end outlet of described mechanical lock air flue 42 is communicated with cylinder-bore, the other end outlet of mechanical lock air flue 42 is opened on the internal face of rear end cover 13, is provided with mechanical lock guide pin bushing 34 between rear end cover 13 and mechanical lock locking bar 43.
On the sidewall of falling stop plunger 14, offer the locked groove 44 that cooperates with the mechanical lock locking bar.
Working procedure of the present utility model is as follows:
The utility model is at the left end of main body cylinder piston rod 3 jaw 2 to be installed, and the bearing pin 1 of energy pinning hammer stem has been installed on jaw 2.The guide pin bushing 4 that play the guiding role has been installed in piston rod 3 upper ends, and drive the piston 11 that piston rod advances or retreats, before piston 11, by preventing that piston from being caused bump when walking to put in place, buffer plunger 10 and supporting ring 12 in order to prevent that piston 11 and cylinder sleeve 9 from directly contacting have been installed.Cylinder head front edge of board lid 5 has been installed in main body cylinder piston rod 3 upper ends, and the preceding tracheae seat 6.1 that front cover 5 connection tracheaes are used has been installed back tracheae seat 6.2 on rear end cover 13, and the air pipe 7 of guiding gas; On the cylinder liner 9 of sealing gas, the middle pivot pin 8 that usefulness is installed is arranged.Right-hand member at main body cylinder piston rod 3 falls for preventing piston rod 3, and falling stop plunger 14 has been installed, and the two-position five-way Pneumatic valve 15 of energy control cylinder action.
Cover the design of 5 places at the cylinder head front edge of board and loaded a two position three-way valve, the suction port of two position three-way valve is by the installation tracheae seat 24 behind the tracheae seat 30 and the stop two-position three way Pneumatic valve that moves ahead that moves ahead before the stop two-position three way Pneumatic valve that moves ahead of stop two-position three way Pneumatic valve air pipe 26 usefulness, regulate the buffering needle-valve 25 of buffer speed speed, guide the compressed-air actuated stop two-position three way Pneumatic valve air pipe 26 that moves ahead, introduce pressurized air, two position three-way valve is a normal close type.After being the pressurized air input of 0.2～0.8MPa when the gas source working pressure, main body cylinder piston 11 stressed drive piston rods 3 advance, through moving to lower dead center, main body cylinder piston 11 is depressed valve rod 27, two position three-way valve is opened, pressurized air guides to tracheae seat 30 before the stop two-position three way Pneumatic valve that moves ahead from valve, then to the stop two-position three way Pneumatic valve air pipe 26 that moves ahead, adorning a pressure relay 23 on the tracheae seat 24 behind the stop two-position three way Pneumatic valve that moves ahead, after pressurized air rises to 0.6kg, pressure relay 23 just can change into electrical signal with gas and feed back to central control room, illustrates that action is normal, and shell is punched.
On the rear end cover 13 of main body cylinder cover plate, designed the guide rod 18 that leading role is arranged, and the setting sleeve 16 that plays the fixed length effect, the switch bracket of installation sensitive switch 17.Guide rod 18 has passed through the spring 19 of reset response, is used for promoting the closure of sensitive switch 17.When main body cylinder piston 11 is retracted to top dead center, because the trigger ramp effect of the falling stop plunger 14 of cylinder liner 9 the insides, prevented the whereabouts of piston 11, and promotion guide rod 18 outwards ejects triggering sensitive switch 17 closures, send electrical signal, feed back to central control room, at this moment central control room is controlled the blanking of blanking cylinder, does not receive the electrical signal of cylinders retract when central control room, illustrate that cylinder breaks down, stop the blanking of blanking cylinder equally.
The mechanical lock device of installing on rear end cover 13 is in rear end cover 13 air inlets, gas enters in the cylinder-bore of rear end cover 13 by mechanical lock air flue 42, the elastic force that air pressure overcomes mechanical lock spring 36 presses down mechanical lock piston 33, make mechanical lock locking bar 43 and the locked groove on the falling stop plunger 14 44 on the mechanical lock piston 33 break away from, this moment, piston rod 3 can move ahead smoothly.When front cover 5 air inlets, this moment, mechanical lock piston 33 was up under the elastic force effect of mechanical lock spring 36, in the locked groove 44 that the mechanical lock locking bar 43 on the mechanical lock piston 33 inserts on the falling stop plunger 14, was about to piston rod 3 and pinned.
Claims (6)
1. intelligent aluminium cell crust breaking cylinder, comprise front cover (5) and rear end cover (13), swivel nut (22) is installed on the rear end cover (13), between front cover (5) and rear end cover (13), cylinder sleeve (9) is installed, sealing slidely connects piston (11) in the cylinder sleeve (9), be fixedly connected with piston rod (3) on the piston (11), the front end of front cover (5) is equipped with end cap head (32), be provided with guide pin bushing (4) in the end cap head (32), piston rod (3) sliding plug is in guide pin bushing (4), front end at piston rod (3) is fixed with jaw (2) and bearing pin (1), tracheae seat (6.1) before on front cover (5), being fixed with, on rear end cover (13), be fixed with back tracheae seat (6.2), between preceding tracheae seat (6.1) and back tracheae seat (6.2), air pipe (7) is installed, on rear end cover (13), be provided with and preceding tracheae seat (6.1), the two-position five-way Pneumatic valve (15) that back tracheae seat (6.2) cooperates, on front cover (5), be provided with tracheae seat (30) before the stop two-position three way Pneumatic valve that moves ahead, tracheae seat (24) after being provided with the stop two-position three way Pneumatic valve that moves ahead on the rear end cover (13), tracheae seat (30) and move ahead and be provided with the stop two-position three way Pneumatic valve air pipe (26) that moves ahead between the stop two-position three way Pneumatic valve tracheae seat (24) before the stop two-position three way Pneumatic valve that moves ahead, stop two-position three way Pneumatic valve air pipe (26) is provided with on rear end cover (13) and moves ahead, the pressure relay (23) that air pipe (7) cooperates, it is characterized in that: on the front-end face of piston (11), be connected with buffer plunger (10), on the ear end face of piston (11), be connected with falling stop plunger (14), the back segment of described falling stop plunger (14) has the trigger ramp to aftershrinkage, on rear end cover (13), be provided with cooperate with described trigger ramp return the stop telltale, on front cover (5), be provided with the stop two-position three way Pneumatic valve that moves ahead, on rear end cover (13), be provided with mechanical lock device.
2. intelligent aluminium cell crust breaking cylinder as claimed in claim 1, it is characterized in that: the described stop telltale that returns is included in the slide opening of offering on the rear end cover (13), at slide opening interpolation guide rod (18), guide rod (18) is provided with spring (19), on rear end cover (13), be fixed with case (21), be provided with the sensitive switch (17) that cooperates with pressure relay (23) in the case (21), outer section at slide opening has internal thread, be spirally connected on this internal thread and regulate nut (20), described adjusting nut (20) gland is on spring (19).
3. intelligent aluminium cell crust breaking cylinder as claimed in claim 1, it is characterized in that: the described stop two-position three way Pneumatic valve that moves ahead is included in the hard-wired lower end cap in mounting hole left part (31) of front cover (5), slipper seal is equipped with lower piston (29) in the mounting hole of front cover (5), between lower end cap (31) and lower piston (29), be provided with Returnning spring (41), lower piston (29) is provided with sealing gasket (28), mounting hole left part sliding plug at front cover (5) has valve rod (27), and the right part of valve rod (27) is projection from the right side of front cover (5).
4. intelligent aluminium cell crust breaking cylinder as claimed in claim 1, it is characterized in that: offer three circumferential grooves on the described piston (11), groove in the centre is embedded with supporting ring (12), groove in supporting ring (12) both sides is embedded with back-up ring (38), one side of back-up ring (38) circumferentially is embedded with cyclic sealing gasket (39), is connected to seal ring (40) in the circumferential outer race of sealing gasket (39).
5. intelligent aluminium cell crust breaking cylinder as claimed in claim 1, it is characterized in that: described mechanical lock device is included in the cylinder-bore of offering on the rear end cover (13), the sealed sliding mechanical lock piston (33) that is dynamically connected in the cylinder-bore, mechanical lock piston (33) is provided with mechanical lock locking bar (43), be bolted with mechanical lock end cap (37) in the outer end of cylinder-bore, between mechanical lock piston (33) and mechanical lock end cap (37), be provided with compressed mechanical lock spring (36), on rear end cover (13), offer mechanical lock air flue (42), the one end outlet of described mechanical lock air flue (42) is communicated with cylinder-bore, and the other end outlet of mechanical lock air flue (42) is opened on the internal face of rear end cover (13).
6. intelligent aluminium cell crust breaking cylinder as claimed in claim 1 is characterized in that: offer the locked groove (44) that cooperates with the mechanical lock locking bar on the sidewall of described falling stop plunger (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202827403U CN201636111U (en) | 2009-12-31 | 2009-12-31 | Crust breaking air cylinder with intelligent aluminum electrolytic cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202827403U CN201636111U (en) | 2009-12-31 | 2009-12-31 | Crust breaking air cylinder with intelligent aluminum electrolytic cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201636111U true CN201636111U (en) | 2010-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202827403U Expired - Fee Related CN201636111U (en) | 2009-12-31 | 2009-12-31 | Crust breaking air cylinder with intelligent aluminum electrolytic cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201636111U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367579A (en) * | 2011-09-19 | 2012-03-07 | 大连维乐液压制造有限公司 | Electrolytic aluminium crust breaking cylinder feedback valve |
| CN102618888A (en) * | 2012-03-26 | 2012-08-01 | 高佩川 | Combined compact-type efficient energy-saving electronic control pneumatic electrolytic aluminum crust breaking system |
| CN102619799A (en) * | 2012-03-26 | 2012-08-01 | 南京工程学院 | Efficient energy-saving adjustable electronic control electrolytic aluminum crust breaking valve terminal system |
| CN102878145A (en) * | 2012-10-30 | 2013-01-16 | 烟台未来自动装备有限责任公司 | Energy-saving crust cylinder for electrolytic aluminium industry |
| CN102995062A (en) * | 2011-09-15 | 2013-03-27 | 沈阳博宇科技有限责任公司 | Intelligent shell-pressing method |
| CN103397346A (en) * | 2013-08-05 | 2013-11-20 | 甘肃工大电子科技有限公司 | Automatic checkout device for bottoming of crust-breaking hammer of aluminum electrolytic cell |
| CN103668327A (en) * | 2013-10-31 | 2014-03-26 | 贵州新峰机电设备有限公司 | Aluminum outlet ladle with opening and closing device-carrying aluminum suction pipe |
| CN103883582A (en) * | 2014-04-01 | 2014-06-25 | 韩元杰 | Crust breaking air cylinder |
| CN108757634A (en) * | 2018-09-03 | 2018-11-06 | 湖南力得尔智能科技有限公司 | A kind of pressure shell cylinder that real-time stroke is controllable |
-
2009
- 2009-12-31 CN CN2009202827403U patent/CN201636111U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102995062A (en) * | 2011-09-15 | 2013-03-27 | 沈阳博宇科技有限责任公司 | Intelligent shell-pressing method |
| CN102995062B (en) * | 2011-09-15 | 2016-09-14 | 沈阳博宇科技有限责任公司 | A kind of intelligence pressure shell method |
| CN102367579A (en) * | 2011-09-19 | 2012-03-07 | 大连维乐液压制造有限公司 | Electrolytic aluminium crust breaking cylinder feedback valve |
| CN102618888A (en) * | 2012-03-26 | 2012-08-01 | 高佩川 | Combined compact-type efficient energy-saving electronic control pneumatic electrolytic aluminum crust breaking system |
| CN102619799A (en) * | 2012-03-26 | 2012-08-01 | 南京工程学院 | Efficient energy-saving adjustable electronic control electrolytic aluminum crust breaking valve terminal system |
| CN102878145A (en) * | 2012-10-30 | 2013-01-16 | 烟台未来自动装备有限责任公司 | Energy-saving crust cylinder for electrolytic aluminium industry |
| CN102878145B (en) * | 2012-10-30 | 2015-06-10 | 烟台未来自动装备有限责任公司 | Energy-saving crust cylinder for electrolytic aluminium industry |
| CN103397346A (en) * | 2013-08-05 | 2013-11-20 | 甘肃工大电子科技有限公司 | Automatic checkout device for bottoming of crust-breaking hammer of aluminum electrolytic cell |
| CN103668327A (en) * | 2013-10-31 | 2014-03-26 | 贵州新峰机电设备有限公司 | Aluminum outlet ladle with opening and closing device-carrying aluminum suction pipe |
| CN103883582A (en) * | 2014-04-01 | 2014-06-25 | 韩元杰 | Crust breaking air cylinder |
| CN108757634A (en) * | 2018-09-03 | 2018-11-06 | 湖南力得尔智能科技有限公司 | A kind of pressure shell cylinder that real-time stroke is controllable |
| CN108757634B (en) * | 2018-09-03 | 2024-03-08 | 湖南力得尔智能科技股份有限公司 | Shell pressing cylinder with controllable real-time travel |
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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: 20101117 Termination date: 20141231 |
|
| EXPY | Termination of patent right or utility model |