CN208026067U - A kind of aluminium melting furnace - Google Patents

A kind of aluminium melting furnace Download PDF

Info

Publication number
CN208026067U
CN208026067U CN201820210241.2U CN201820210241U CN208026067U CN 208026067 U CN208026067 U CN 208026067U CN 201820210241 U CN201820210241 U CN 201820210241U CN 208026067 U CN208026067 U CN 208026067U
Authority
CN
China
Prior art keywords
melting furnace
fire door
furnace body
aluminum melting
holder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201820210241.2U
Other languages
Chinese (zh)
Inventor
沈根芳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Self Strengthening Aluminum Industry Co Ltd
Original Assignee
Zhejiang Self Strengthening Aluminum Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Self Strengthening Aluminum Industry Co Ltd filed Critical Zhejiang Self Strengthening Aluminum Industry Co Ltd
Priority to CN201820210241.2U priority Critical patent/CN208026067U/en
Application granted granted Critical
Publication of CN208026067U publication Critical patent/CN208026067U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a kind of aluminium melting furnaces, it is related to apparatus for melting metal technical field, including aluminum melting furnace body, aluminum melting furnace body side offers the feed inlet being arranged in horizontal direction, it is installed with holder on the aluminum melting furnace body, lifting door gear is installed on the holder, the lifting door gear includes being mounted on outside the feed inlet and vertically sliding the fire door connecting with the aluminum melting furnace body, install on the bracket and be used to drive the driving mechanism of the fire door lifting, the driving mechanism is connect with the fire door, the driving mechanism has self-locking function.By the lifting of driving mechanisms control fire door, fire door is made vertically to slide, aluminium material, the feed inlet of aluminum melting furnace body can be added not to circulate completely with air without opening fire door completely, to reduce the loss of heat in aluminum melting furnace body, reduce the waste of thermal resource.

Description

A kind of aluminium melting furnace
Technical field
The utility model is related to apparatus for melting metal technical fields, more specifically, it relates to a kind of aluminium melting furnace.
Background technology
Aluminium melting furnace is a kind of novel high-efficiency and energy-saving stove developed according to aluminium smelting technology, it can meet aluminium melting well In technique:Alloy composition requires sternly, and production is discontinuous, and larger wait of single heat size requires, and having reached reduces consumption, reduces scaling loss, Product quality is improved, labor intensity is reduced, the effect of improving working conditions and improve production efficiency, is suitable for batch operation.
Notification number discloses a kind of small movable highly effective aluminium-melting stove for the Chinese utility model of CN206531392U, including Furnace body, be connected to the furnace interior into burner and combustor, which has charge door and an aluminium flowing-out mouth, outside the furnace body Rotation has the fire door of charge door described in opened/closed on side wall, and the furnace body bottom end is provided with mobile device.When need add aluminium When material, staff, which operates fire door, makes fire door open fire door around the rotating joint of fire door and furnace body, adds aluminium material, is added After the completion, fire door is rotated backward, to close fire door.
After the completion of the aluminium material refining in furnace body, opening fire door is needed to feed, but above-mentioned aluminium melting furnace is needed stove Door is opened aluminium material could be added completely, so that charge door is circulated completely with air, leads to being largely lost for thermal energy, so as to cause heat The waste of resource.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of aluminium melting furnace, pass through driving machine Structure controls the lifting of fire door, so that fire door is vertically slid, can add aluminium material, the feed inlet of aluminum melting furnace body without opening fire door completely It does not circulate completely with air, to reduce the loss of heat in aluminum melting furnace body, reduces the waste of thermal resource.
To achieve the above object, the utility model provides following technical solution:
A kind of aluminium melting furnace, including aluminum melting furnace body, aluminum melting furnace body side offer feed inlet, the aluminium melting furnace sheet Be installed with holder on body, lifting door gear be installed on the holder, the lifting door gear include be mounted on it is described into Material mouth is outer and vertically slides the fire door connecting, installation on the bracket and for driving the fire door with the aluminum melting furnace body The driving mechanism of lifting, the driving mechanism are connect with the fire door, and the driving mechanism has self-locking function.
By using above-mentioned technical proposal, when needing charging, start driving mechanism, driving mechanism drives eastern fire door along molten Aluminium furnace body slides straight up, when fire door, which rises to, can aluminium material be put into feed inlet, stops the running of driving mechanism, is put into Aluminium material;Be put into after completion, start driving mechanism, fire door dead weight and under the action of driving mechanism along aluminum melting furnace body vertically to Lower sliding stops the running of driving mechanism when feed inlet is completely covered fire door, and fire door stops declining, and completes the mistake of pan feeding Journey.In the operating process for adding aluminium material, without opening completely, the feed inlet of aluminum melting furnace body does not circulate fire door completely with air, To reduce the loss of heat in aluminum melting furnace body, reduce the waste of thermal resource.
Preferably, the driving mechanism include installation hoist engine on the bracket, rotational installation on the bracket And the transmission component being connect with the hoist engine, the connector being connect on the transmission component and with the fire door.
By using above-mentioned technical proposal, when needing lifting furnace door, start hoist engine, the rope of hoist engine drives transmission Component movement, transmission component band follower link move, and connector drives fire door vertical motion, to realize the lifting of fire door.
Preferably, the transmission component includes the bearing that multiple coaxial arrangements on the bracket are fixedly mounted, rotation The rope of rotating bar on multiple bearings, the hoist engine is wrapped in the rotating bar, the connector one End is wrapped in the rotating bar, and the connector other end is connect with fire door.
By using above-mentioned technical proposal, when hoist engine winds or unreels rope, the rotation of cable tie turn lever, even Fitting winding either unreels in rotating bar to which connector promotes or put down fire door, realizes that fire door is opened and closed feed inlet.
Preferably, the rotating bar is provided with rolling wheel close to hoist engine one end, and the rope of the hoist engine is wound in described Rolling wheel.
By using above-mentioned technical proposal, the rope being wrapped in rotating bar is increased at a distance from rotating bar axle center, is increased The big arm of force of rope during driving rotating bar rotation, to the drive rotating bar rotation for keeping hoist engine more effortless;Together When rolling wheel setting also define the position of rope, avoid rope from falling off from rotating bar.
Preferably, the aluminum melting furnace body offers slippage slot close to fire door side, the slippage slot setting it is described into The vertical both sides of material mouth, the fire door, which is provided with to slide with the slippage slot of feed inlet both sides close to the side of aluminum melting furnace body, to be coordinated Convex block.
By using above-mentioned technical proposal, for rotating bar during winding or unreeling connection, connector can be along rotation The axial translation of bar, fire door can also be translated with the translation of connector, and when translating excessive, fire door can cover incessantly feed inlet, Coordinated by the sliding of slippage slot and convex block, will not be deviated by connector when fire door declines be influenced, and make fire door always can will be into Material mouth covers.
Preferably, hold-down mechanism is provided on the holder, the hold-down mechanism includes installation on the bracket and has The runner assembly of flexible recovery function, the hold-down roller with runner assembly rotation connection, the hold-down roller is in the rotation Fire door is pushed against under the action of component.
By using above-mentioned technical proposal, there are gap between fire door and aluminum melting furnace body, aluminium melting furnace ontology heat can be from It is come out in gap, causes the close air themperature of fire door successively low, furnace temperature non-uniform temperature influences the melting of aluminium material.It is logical Crossing runner assembly makes hold-down roller push against fire door, and fire door pushes against aluminum melting furnace body, substantially reduces between fire door and aluminum melting furnace body Gap, reduce the convection current of air, reduce the influence to furnace temperature, ensure the efficiency of aluminium material melting.
Preferably, the runner assembly include one end connect with the holder pivots connecting rod, be mounted on the connection The elastic component being connect on bar and with the holder, the hold-down roller are rotatably connected in the connecting rod;The hold-down roller pushes against When the fire door, the elastic component is in the state that is stretched.
By using above-mentioned technical proposal, elastic component has the elastic force retracted, hold-down roller is enable to push against stove always always Door, enables fire door to push against aluminum melting furnace body always, simple in structure without providing other external force.
Preferably, the aluminum melting furnace body is provided with the limited block for limiting fire door falling head close to fire door side, And the limited block is arranged between aluminium melting furnace body bottom portion and feed inlet;And when the fire door and the limited block contradict, Floor projection of the fire door on the aluminum melting furnace body covers the feed inlet.
By using above-mentioned technical proposal, when the height that staff is when operating hoist engine, and bad control fire door declines Degree, it is possible that error, causes to decline excessively, fire door is made to be not covered with feed inlet, it is also necessary to which rising fire door again makes fire door Cover feed inlet, by the setting of limited block, staff when operating hoist engine and declining fire door, as long as ensure fire door with Limited block contacts, so that it may so that fire door covers feed inlet, decline excessive problem without considering.
Preferably, the flue of connection aluminum melting furnace body is installed on the aluminum melting furnace body, is gone back on the aluminum melting furnace body The enclosure being connected to the flue is installed, the enclosure is located above the feed inlet.
By using above-mentioned technical proposal, aluminum melting furnace body will produce flue gas during aluminium metallurgy, and most of flue gas is logical Cross flue discharge.Due to being rigid seal between fire door and aluminum melting furnace body, there can be a fixed gap, partial fume can be from gap It is out scattered in air, causes damages to staff.By the setting of enclosure, the flue gas that will be spilt from aluminum melting furnace body It collects to flue, avoids injury of the flue gas to staff;Simultaneously when adding aluminium material, need oven door opening, flue gas It can be run out of from feed inlet, the flue gas run out of can also be absorbed by enclosure.
Preferably, the peep hole for observation is offered on the fire door, and pyroceram is provided on the peep hole.
By using above-mentioned technical proposal, staff can observe aluminium material in aluminum melting furnace body by the peep hole moment Expenditure Levels can add new aluminium material when aluminium material runs out of in time;Simultaneously by the setting of pyroceram, work is avoided Injury of the clast that personnel blow out when observing aluminium melting furnace body interior from aluminium melting furnace body interior to eyes, protects work people The eyes of member.
Compared with prior art, the utility model has the advantages that:
1, by the lifting of driving mechanisms control fire door, fire door is made vertically to slide, can adds aluminium without opening fire door completely Material, the feed inlet of aluminum melting furnace body do not circulate with air, to reduce the loss of heat in aluminum melting furnace body, reduce completely The waste of thermal resource;
2, hold-down roller is made to push against fire door by runner assembly, fire door pushes against aluminum melting furnace body, substantially reduces fire door and melts Gap between aluminium furnace body reduces the convection current of air, reduces the influence to furnace temperature, ensures the efficiency of aluminium melting;
3, flue gas pair is avoided by from the fume collection that aluminum melting furnace body is spilt to flue by the setting of enclosure The injury of staff.
Description of the drawings
Fig. 1 is the utility model dimensional structure diagram(One);
Fig. 2 is the utility model dimensional structure diagram(Two), enclosure and flue are eliminated in figure;
Fig. 3 is the portions the A enlarged drawing of Fig. 2.
Reference numeral:1, aluminum melting furnace body;11, feed inlet;12, slippage slot;13, limited block;15, pyroceram;2, Holder;21, support column;22, support plate;23, vertical through holes;3, fire door;31, convex block;4, driving mechanism;41, hoist engine;42, Transmission component;421, bearing;422, rotating bar;423, rolling wheel;43, connector;5, hold-down mechanism;51, runner assembly;511, even Extension bar;512, elastic component;52, hold-down roller;6, flue;7, enclosure.
Specific implementation mode
With reference to the accompanying drawings and examples, the utility model is described in detail.
A kind of aluminium melting furnace, referring to Figures 1 and 2, including aluminum melting furnace body 1,1 side of aluminum melting furnace body offer feed inlet 11, holder 2 is installed on aluminum melting furnace body 1, and lifting door gear is installed on holder 2.Wherein, lifting door gear includes peace It is used to drive fire door 3 outside feed inlet 11 and with the fire door 3 that vertically sliding connects of aluminum melting furnace body 1, on holder 2 The driving mechanism 4 of lifting.Driving mechanism 4 drives 3 vertical lifting of fire door, is opened and closed to feed inlet 11 to realize.
Holder 2 includes being fixedly mounted on aluminum melting furnace body 1 and positioned at the support column 21 of 3 both sides of fire door, the support of both sides The top of column 21 is fixed with support plate 22.
With reference to Fig. 2, driving mechanism 4 includes hoist engine 41, transmission component 42 and connector 43, and connector 43 uses steel wire Rope, transmission component 42 include the bearing 421 and rotating bar 422 of two coaxial arrangements.Hoist engine 41 is fixedly mounted on the branch of side On dagger 21, two bearings 421 are fixedly mounted in support plate 22, and rotating bar 422 is rotatably installed in two bearings 421, are turned Lever 422 is installed with rolling wheel 423 close to 41 one end of hoist engine, and the rope of hoist engine 41 is wrapped on rolling wheel 423, connector 43 one ends wound is in the rotating bar 422 between two bearings 421.Vertical through holes 23, connector are offered in support plate 22 43 other end is fixed on across vertical through holes 23 on fire door 3.When driving mechanism 4 operates, hoist engine 41 winds or unreels rope Rope, rope drive rolling wheel 423 to rotate, and rolling wheel 423 drives rotating bar 422 to rotate, to which connector 43 is wound or be put Volume, to drive the lifting of fire door 3.
With reference to Fig. 2 and Fig. 3, aluminum melting furnace body 1 is opened up close to 3 side of fire door there are two vertical slippage slot 12, and two Slippage slot 12 is located at the both sides of feed inlet 11, and fire door 3 is installed with and feed inlet 11 close to the side of aluminum melting furnace body 1 The convex block 31 of the sliding cooperation of slippage slot 12 of both sides.Fire door 3 can be moved by convex block 31 along the path of slippage slot 12 when lifting, It avoids fire door 3 from deviateing feed inlet 11, feed inlet 11 is made not to be completely covered by fire door 3.
Aluminum melting furnace body 1 is fixedly installed limited block 13 close to 3 side of fire door, and limited block 13 is arranged in aluminum melting furnace body Between 1 bottom and feed inlet 11.When fire door 3 and limited block 13 contradict, fire door 3 covers feed inlet 11.
Hold-down mechanism 5 is additionally provided on support column 21, hold-down mechanism 5 includes runner assembly 51 and hold-down roller 52, rotating group Part 51 includes the connecting rod 511 and elastic component 512 for being separately positioned on 3 both sides of fire door, and elastic component 512 uses spring.With wherein one For lateral connector bar 511, one end of connecting rod 511 and support column 21 are hinged, the other end and the elastic component 512 of connecting rod 511 One end is fixedly connected, and the other end of elastic component 512 is fixed on support column 21.Hold-down roller 52 is rotatably installed in two connecting rods Between 511 and the hinge joint and connecting rod 511 and the fixed connection point of elastic component 512 of support column 21, hold-down roller 52 is in elastic component It is pushed against under the action of 512 on fire door 3.When hold-down roller 52 pushes against fire door 3, elastic component 512 is in the state that is stretched, and has back The elastic force of contracting makes hold-down roller 52 push against fire door 3 always.
Referring to Fig.1, the flue 6 of connection aluminum melting furnace body 1 is installed on aluminum melting furnace body 1, for aluminium metallurgy to be discharged Flue gas in journey.Enclosure 7 is also equipped on the aluminum melting furnace body 1 of feed inlet 11, enclosure 7 in a rectangular parallelepiped shape, is discharged fume The vertical projection of the under shed of cover 7 covers fire door 3, and the pipeline of connection enclosure 7 and flue 6 is fixedly installed on enclosure 7.Row Petticoat pipe 7 can be sucked back the flue gas leaked out between fire door 3 and aluminum melting furnace body 1 in flue 6 by pipeline, be avoided to the people that works Member generates harm.
The peep hole for observation is offered on fire door 3, and pyroceram 15 is fixedly installed on peep hole.
The operation principle of the utility model:
When charging, start hoist engine 41, hoist engine 41 winds or unreel rope, and rope drives rolling wheel 423 to rotate, rolling wheel 423 drive rotating bar 422 to rotate, and rotating bar 422 winds connector 43, and connector 43 promotes fire door 3, and energy is arrived when fire door 3 is promoted Hoist engine 41 can be closed when aluminium material is put into, and be then put into aluminium material in aluminum melting furnace body 1 by feed inlet 11;It is put into completion Afterwards, start hoist engine 41, hoist engine 41 reversely winds or unreel rope, and cable tie turn lever 422 rotates, rotating bar 422 Connector 43 is unreeled, fire door 3 declines, when fire door 3, which drops to, contradicts limited block 13, you can close hoist engine 41, complete to add aluminium The process of material.
A flue gas part is discharged from flue 6, and a part is leaked out between fire door 3 and aluminum melting furnace body 1 and inhaled by enclosure 7 It receives, the flue gas of absorption is led in flue 6 and is discharged by enclosure 7;During adding aluminium material, from the cigarette of feed inlet 11 out Gas is also absorbed by enclosure 7, then is discharged from flue 6.
The above is only the preferred embodiment of the utility model, and the scope of protection of the utility model is not limited merely to Above-described embodiment, technical solution belonging to the idea of the present invention belong to the scope of protection of the utility model.It should refer to Go out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.

Claims (10)

1. a kind of aluminium melting furnace, including aluminum melting furnace body (1), aluminum melting furnace body (1) side offers feed inlet (11), special Sign is:It is installed with holder (2) on the aluminum melting furnace body (1), lifting door gear, institute are installed on the holder (2) It includes the fire door for being mounted on the feed inlet (11) outside and vertically sliding connection with the aluminum melting furnace body (1) to state lifting door gear (3), the driving mechanism (4) on the holder (2) and for driving the fire door (3) to lift, the driving mechanism (4) are mounted on It is connect with the fire door (3), the driving mechanism (4) has self-locking function.
2. a kind of aluminium melting furnace according to claim 1, it is characterised in that:The driving mechanism (4) includes mounted on described Hoist engine (41) on holder (2), the transmission component for being rotatably installed on the holder (2) and being connect with the hoist engine (41) (42), it is mounted on the connector (43) connecting on the transmission component (42) and with the fire door (3).
3. a kind of aluminium melting furnace according to claim 2, it is characterised in that:The transmission component (42) includes being fixedly mounted on The bearing (421) of multiple coaxial arrangements on the holder (2), the rotating bar being rotatably installed on multiple bearings (421) (422), the rope of the hoist engine (41) is wrapped in the rotating bar (422), and connector (43) one ends wound is in institute It states in rotating bar (422), connector (43) other end is connect with fire door (3) upper end.
4. a kind of aluminium melting furnace according to claim 3, it is characterised in that:The rotating bar (422) is close to hoist engine (41) One end is provided with rolling wheel (423), and the rope of the hoist engine (41) is wound in the rolling wheel (423).
5. a kind of aluminium melting furnace according to claim 1, it is characterised in that:The aluminum melting furnace body (1) is close to fire door (3) side Face vertically offers slippage slot (12), and the fire door (3) is provided with close to the side of aluminum melting furnace body (1) and feed inlet (11) convex block (31) of slippage slot (12) the sliding cooperation of both sides.
6. a kind of aluminium melting furnace according to claim 1, it is characterised in that:It is provided with hold-down mechanism on the holder (2) (5), the hold-down mechanism (5) include be mounted on the holder (2) on and with elastic recovery function runner assembly (51), with The hold-down roller (52) of runner assembly (51) rotation connection, the hold-down roller (52) is under the action of the runner assembly (51) Push against fire door (3).
7. a kind of aluminium melting furnace according to claim 6, it is characterised in that:The runner assembly (51) includes and the holder (2) connecting rod (511) that is rotatablely connected is mounted in the connecting rod (511) and the elastic component that is connect with the holder (2) (512), the hold-down roller (52) is rotatably connected in the connecting rod (511);The hold-down roller (52) pushes against the fire door (3) When, the elastic component (512) is in the state that is stretched.
8. a kind of aluminium melting furnace according to claim 1, it is characterised in that:The aluminum melting furnace body (1) is close to fire door (3) one Side is provided with the limited block (13) for limiting fire door (3) falling head, and the limited block (13) is arranged in aluminum melting furnace body (1) between bottom and feed inlet (11);And when the fire door (3) and the limited block (13) contradict, fire door (3) covering The feed inlet (11).
9. a kind of aluminium melting furnace according to claim 1, it is characterised in that:Connection is installed on the aluminum melting furnace body (1) The flue (6) of aluminum melting furnace body (1) is also equipped with the enclosure being connected to the flue (6) on the aluminum melting furnace body (1) (7), the enclosure (7) is located above the feed inlet (11).
10. a kind of aluminium melting furnace according to claim 1, it is characterised in that:It is offered for observation on the fire door (3) Peep hole is provided with pyroceram (15) on the peep hole.
CN201820210241.2U 2018-02-06 2018-02-06 A kind of aluminium melting furnace Expired - Fee Related CN208026067U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820210241.2U CN208026067U (en) 2018-02-06 2018-02-06 A kind of aluminium melting furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820210241.2U CN208026067U (en) 2018-02-06 2018-02-06 A kind of aluminium melting furnace

Publications (1)

Publication Number Publication Date
CN208026067U true CN208026067U (en) 2018-10-30

Family

ID=63903959

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820210241.2U Expired - Fee Related CN208026067U (en) 2018-02-06 2018-02-06 A kind of aluminium melting furnace

Country Status (1)

Country Link
CN (1) CN208026067U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112197582A (en) * 2020-08-28 2021-01-08 芜湖良仕机械科技有限公司 Integrated centralized dry boiler
CN115682735A (en) * 2022-10-28 2023-02-03 浙江华顺炉业有限公司 Gas trolley type roasting furnace

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112197582A (en) * 2020-08-28 2021-01-08 芜湖良仕机械科技有限公司 Integrated centralized dry boiler
CN115682735A (en) * 2022-10-28 2023-02-03 浙江华顺炉业有限公司 Gas trolley type roasting furnace

Similar Documents

Publication Publication Date Title
CN208026067U (en) A kind of aluminium melting furnace
CN204007153U (en) The saggar lid automatic moving removal apparatus that electronic kiln automatic production line is used
CN207176024U (en) A kind of new and effective heat-treatment furnace
CN206887169U (en) A kind of heat-treatment furnace
CN208983868U (en) A kind of intermediate frequency furnace with automatic charging discharging functions
CN207210478U (en) A kind of automatic feeding type annealing furnace structure
CN109405029A (en) Side-absorption type smoke exhaust ventilator
CN103352094B (en) Rotary type uncovering machine and rotary type uncovering method for blast furnace iron runner
CN104180665B (en) The automatic apparatus for removing of saggar lid of electronic kiln automatic production line
CN209295252U (en) Side-absorption type smoke exhaust ventilator
CN213977812U (en) Furnace door opening and closing device of heat treatment furnace
CN212431768U (en) Automatic opening and closing device for heat preservation cover of feed opening at top of heat preservation furnace
CN209197448U (en) A kind of industrial resistance furnace
CN207674961U (en) A kind of lead melting furnace operating platform
CN217760596U (en) End drives formula two and opens furnace gate
CN219829488U (en) Detachable heat treatment furnace
CN216588292U (en) Controllable formula structure of opening door of soldering machine
CN209706566U (en) A kind of heat-treatment furnace
CN215176951U (en) Electric furnace door lever device
CN216047791U (en) Lead screw flue valve
CN217483251U (en) Furnace door lifting structure
CN207922883U (en) A kind of environmental protection dust collection device and a kind of high temperature smelting furnace
CN212390827U (en) Roasting furnace with automatic feeding and discharging mechanism
CN218034358U (en) Split type valve system for rotary type scrap steel baking oven
RU2509278C1 (en) Device to lift and lower furnace damper

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20181030

Termination date: 20220206