CN110423852A - A kind of steel slag hot disintegrating pre-processing device of high treating effect - Google Patents
A kind of steel slag hot disintegrating pre-processing device of high treating effect Download PDFInfo
- Publication number
- CN110423852A CN110423852A CN201910866752.9A CN201910866752A CN110423852A CN 110423852 A CN110423852 A CN 110423852A CN 201910866752 A CN201910866752 A CN 201910866752A CN 110423852 A CN110423852 A CN 110423852A
- Authority
- CN
- China
- Prior art keywords
- steel slag
- processing device
- treating effect
- high treating
- munnion
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/02—Physical or chemical treatment of slags
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/05—Apparatus features
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The invention discloses a kind of steel slag hot disintegrating pre-processing devices of high treating effect, including pretreatment unit, the pretreatment unit includes the bored pond of heat, feed inlet is provided with above the bored pond of heat, mounting base is provided on the right side of the bored pond of heat, the mounting base left side is fixedly connected with transverse slat in two sides up and down, munnion is installed on the transverse slat of upper and lower two sides, setting in feed inlet is protruded into the munnion lower end, structure is simple, construction is clear understandable, steel slag is moved by hoisting guiding rail, it is pre-processed in the pretreatment unit outside sultry pond, it is directly carried out after pretreatment sultry, shorten the period；It can prevent directly to pour into high-temperature steel slag in sultry pond after pretreatment, reduce damage of the high temperature to crater wall, improve service life；It can be good at eliminating the high temperature in sultry region simultaneously, the environmental problems such as dust is big；High degree of automation is not necessarily to manual work, improves safety coefficient, is worthy to be popularized.
Description
Technical field
The present invention relates to Technologies of Steel Slag Treatment field, the steel slag hot disintegrating pre-processing device of specially a kind of high treating effect.
Background technique
Currently, You Duojia steel mill, the country is using the bored process vessel slag of heat.Existing steel slag hot disintegrating technique is steamed using water
Vapour generates volume expansion after hydrolysis occurs with Ca0 in slag and Mg0 at a certain temperature, makes clinker fragmentation dusting, makes slag steel
It disengages with steel slag, slag steel can followed by be selected from steel slag by the methods of magnetic separation.Steel slag hole is bored, and one ton of steel slag has 12%
Steel scrap, 1600 degrees Celsius of liquid steel slags, with high pressure water jets at the steel slag of 10mm, temperature drops to 800 degrees Celsius by 1600 degrees Celsius,
Pit is carried out down again, and temperature can drop to 320 degrees Celsius, pressure P=0.3MP, through the bored steel for becoming 8~10mm for 8~12 hours of heat
Slag.Converter processing is therefore a kind of mode of current slag processing for this processing mode, needs a kind of high treating effect
Steel slag hot disintegrating pre-processing device.
Summary of the invention
The purpose of the present invention is to provide a kind of steel slag hot disintegrating pre-processing devices of high treating effect, to solve above-mentioned background
The problem of being proposed in technology.
To achieve the above object, the invention provides the following technical scheme:
A kind of steel slag hot disintegrating pre-processing device of high treating effect, including pretreatment unit, the pretreatment unit include
The bored pond of heat, the bored pond top of heat are provided with feed inlet, are provided with mounting base, the mounting base left side on the right side of the bored pond of heat
Upper and lower two sides are fixedly connected with transverse slat, and munnion is equipped on upper and lower two sides transverse slat, and setting in feed inlet is protruded into the munnion lower end,
It is provided with charging inclined plate above the mounting base, is connected with support rod between the charging inclined plate and mounting base upper surface, it is described
Hanging apparatus is provided with above pretreatment unit.
As a further solution of the present invention: the charging inclined plate upper surface is provided with feed well, on the charging inclined plate
Side is provided with charging frame, and the charging inclined plate is that right end tilts upward setting, is connected with feed hopper above the munnion right side,
Setting in feed hopper is protruded into the charging inclined plate left end.
As further scheme of the invention: being connected between the charging frame inner top side wall and progress inclined plate upper surface
There are several vertical bars, top is provided with crossbearer in the munnion, and the crossbearer is cross setting.
As further scheme of the invention: being equipped with water pump, the water pump output on the left of the mounting base upper surface
End is connected separately with the first outlet pipe and the second outlet pipe, and first outlet pipe is arranged in charging frame upper surface, and described first
Outlet pipe lower end surface is connected with several first water mist spraying heads, and first water mist spraying head is placed in charging frame inner top side wall setting,
Second outlet pipe is connected with the second water mist spraying head, and second water mist spraying head is installed in munnion right side wall.
As further scheme of the invention: the hanging apparatus includes ceiling mounted tracks, is set below the ceiling mounted tracks
It is equipped with mounting plate, riser is connected in the longitudinal direction on the left of the mounting plate bottom face, is arranged between the riser of the front and back side
There is steel slag feeding funnel.
As further scheme of the invention: being bolted to connection hook on the riser, the steel slag is sent
Rotation seat is provided on hopper front/rear end, front and back side hanging hook and front and back side rotation seat are rotatablely connected.
As further scheme of the invention: being equipped with cylinder, the cylinder output on the right side of the mounting plate upper surface
End is fixedly connected with link, is fixedly connected with lower link, the upper link and lower extension below steel slag feeding funnel right side
Spring is connected between ring.
As further scheme of the invention: the ceiling mounted tracks bottom face is that opening is arranged, in the ceiling mounted tracks
It is provided with mounting groove, roller groove is provided at left and right sides of bottom face opening in the mounting groove, is provided in the roller groove
Idler wheel is rotatably connected to bull stick between the idler wheel of the left and right sides, and the bull stick lower end is connected with connecting rod, and the connecting rod lower end is stretched
Opening is outer out is arranged and is connected with fixed link, and the fixed link lower end is fixedly connected with mounting plate upper surface.
Compared with prior art, the beneficial effects of the present invention are: the configuration of the present invention is simple, construction is clear understandable, and steel slag is logical
It crosses hoisting guiding rail to be moved, be pre-processed in the pretreatment unit outside sultry pond, sultry, contracting is directly carried out after pretreatment
Short cycle；It can prevent directly to pour into high-temperature steel slag in sultry pond after pretreatment, reduce damage of the high temperature to crater wall, raising makes
Use the service life；It can be good at eliminating the high temperature in sultry region simultaneously, the environmental problems such as dust is big；High degree of automation is not necessarily to people
Work industry, improves safety coefficient, is worthy to be popularized.
Detailed description of the invention
Fig. 1 is a kind of overall structure diagram of the steel slag hot disintegrating pre-processing device of high treating effect；
Fig. 2 is enlarged structure schematic diagram at a kind of A of the steel slag hot disintegrating pre-processing device of high treating effect；
Fig. 3 is a kind of ceiling mounted tracks structural schematic diagram of the steel slag hot disintegrating pre-processing device of high treating effect.
In figure: 1- pretreatment unit, the sultry pond 2-, 3- feed inlet, 4- are linked up with, 5- rotation seat, 6- steel slag feeding funnel, under 7-
Link, 8- spring, the upper link of 9-, 10- mounting plate, 11- cylinder, 12- hanging apparatus, 13- riser, 14- ceiling mounted tracks, 15- are solid
Fixed pole, 16- connecting rod, 17- roller groove, 18- idler wheel, 19- mounting groove, 20- bull stick, 21- feed hopper, 22- crossbearer, 23- munnion,
24- transverse slat, the second outlet pipe of 25-, 26- motor, 27- mounting base, the second water mist spraying head of 28-, 29- support rod, 30- charging are oblique
Plate, 31- feed well, 32- vertical bar, the first outlet pipe of 33-, the first water mist spraying head of 34-, 35- feed frame.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1~3, the present invention provides a kind of technical solution: a kind of steel slag hot disintegrating pretreatment of high treating effect is set
It is standby, including pretreatment unit 1, the pretreatment unit 1 include the bored pond 2 of heat, are provided with feed inlet 3, institute above the bored pond 2 of heat
It states and is provided with mounting base 27 on the right side of the bored pond 2 of heat, two sides are fixedly connected with transverse slat 24 up and down for 27 left side of mounting base, and upper and lower two
Munnion 23 is installed, 23 lower end of munnion is protruded into setting in feed inlet 3, is provided with above the mounting base 27 on side transverse slat 24
Inclined plate 30 is fed, is connected with support rod 29 between the charging inclined plate 30 and 27 upper surface of mounting base, on the pretreatment unit 1
Side is provided with hanging apparatus 12, and 30 upper surface of charging inclined plate is provided with feed well 31, is arranged above the charging inclined plate 30
There is charging frame 35, the charging inclined plate 30 is that right end tilts upward setting, is connected with feed hopper above 23 right side of munnion
21,30 left end of charging inclined plate, which is protruded into feed hopper 21, to be arranged, on the 35 inner top side wall of charging frame and progress inclined plate 30
Several vertical bars 32 are connected between end face, top is provided with crossbearer 22 in the munnion 23, and the crossbearer 22 is cross setting,
Water pump 26 is installed, 26 output end of water pump is connected separately with the first outlet pipe 33 and the on the left of 27 upper surface of mounting base
Two outlet pipes 25, first outlet pipe 33 are arranged in charging 35 upper surface of frame, and 33 lower end surface of the first outlet pipe is connected with
Several first water mist spraying heads 34, first water mist spraying head 24 are placed in charging 35 inner top side wall of frame setting, second water outlet
Pipe 25 is connected with the second water mist spraying head 28, and second water mist spraying head 28 is installed in 23 right side wall of munnion, the hanging apparatus 12
Including ceiling mounted tracks 14, mounting plate 10 is provided with below the ceiling mounted tracks 14,10 bottom face of the mounting plate left side is in front and back
It is connected with riser 13 on direction, steel slag feeding funnel 6 is provided between front and back side riser 13, passes through bolt on the riser 13
It is fixedly connected with hook 4, rotation seat 5 is provided on 6 front/rear end of steel slag feeding funnel, front and back side hanging hook 4 and front and back side turn
Dynamic seat 5 is rotatablely connected, and is equipped with cylinder 11 on the right side of 10 upper surface of mounting plate, 11 output end of cylinder is fixedly connected with
Link 9,6 right side of the steel slag feeding funnel lower section are fixedly connected with lower link 7, connect between the upper link 7 and lower link 7
There is spring 8,14 bottom face of ceiling mounted tracks is opening setting, is provided with mounting groove 19, the peace in the ceiling mounted tracks 14
It is provided with roller groove 17 at left and right sides of bottom face opening in tankage 19, idler wheel 18, left and right two are provided in the roller groove 17
Bull stick 20 is rotatably connected between side wheel 18,20 lower end of bull stick is connected with connecting rod 16, and 16 lower end of connecting rod is stretched
Opening is outer out is arranged and is connected with fixed link 15, and 15 lower end of fixed link is fixedly connected with 10 upper surface of mounting plate.
Steel slag is placed in steel slag feeding funnel 6, steel slag feeding funnel 6 is hung on front and back side hanging hook 4, steel slag feeding funnel 6
It 14 is conveyed by lifting regulation, when being delivered to charging 30 top of inclined plate, cylinder 11 drives upper link 9 to moving up at this time
It is dynamic, 6 bottom of steel slag feeding funnel is sling by spring 8, spring 8 can be avoided steel slag caused by when cylinder 11 moves unstable and send
Shaking caused by when 6 bottom of hopper is lifted, then, steel slag are imported into the feed well 31 on charging inclined plate 30, along charging
Slot 31 is mobile, opens water pump 26 at this time, and water pump 26 sprays water mist by the first water mist spraying head 34 and the second water mist spraying head 28 respectively,
So that water mist is contacted with the steel slag on feed well 31, vertical bar 32 can separate steel slag, improve the contact area of water mist and steel slag,
Subsequent steel slag enters in munnion 23 from feed hopper 21, and steel slag enters in munnion 23 to be split by crossbearer 22, with the second water mist
Spray head 28 spray water mist contact, water mist contact with steel slag will become steam and from feed hopper 21 discharge, finally, steel slag from
Feed inlet 3, which enters in sultry pond 2, carries out sultry operation.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (8)
1. a kind of steel slag hot disintegrating pre-processing device of high treating effect, including pretreatment unit (1), it is characterised in that: described pre-
Processing unit (1) includes the bored pond (2) of heat, is provided with feed inlet (3) above the bored pond of heat (2), sets on the right side of the bored pond of heat (2)
It is equipped with mounting base (27), mounting base (27) left side is fixedly connected with transverse slat (24) two sides up and down, upper and lower two sides transverse slat
(24) it is equipped on munnion (23), setting in feed inlet (3) is protruded into munnion (23) lower end, sets above the mounting base (27)
It is equipped with charging inclined plate (30), is connected with support rod (29) between the charging inclined plate (30) and mounting base (27) upper surface, it is described
Hanging apparatus (12) are provided with above pretreatment unit (1).
2. a kind of steel slag hot disintegrating pre-processing device of high treating effect according to claim 1, it is characterised in that: it is described into
Material inclined plate (30) upper surface is provided with feed well (31), is provided with above the charging inclined plate (30) and is fed frame (35), it is described into
Material inclined plate (30) is that right end tilts upward setting, is connected with feed hopper (21), the charging above munnion (23) right side
Setting in feed hopper (21) is protruded into inclined plate (30) left end.
3. a kind of steel slag hot disintegrating pre-processing device of high treating effect according to claim 2, it is characterised in that: it is described into
Material frame (35) inner top side wall and be connected with several vertical bars (32) between inclined plate (30) upper surface, in the munnion (23) on
Side is provided with crossbearer (22), and the crossbearer (22) is cross setting.
4. a kind of steel slag hot disintegrating pre-processing device of high treating effect according to claim 3, it is characterised in that: the peace
Dress seat (27) upper surface on the left of be equipped with water pump (26), water pump (26) output end be connected separately with the first outlet pipe (33) and
Second outlet pipe (25), first outlet pipe (33) are arranged in charging frame (35) upper surface, under first outlet pipe (33)
End face is connected with several first water mist spraying heads (34), and first water mist spraying head (24) is placed in charging frame (35) inner top side wall and sets
It sets, second outlet pipe (25) is connected with the second water mist spraying head (28), and second water mist spraying head (28) is on munnion (23) right side
Side wall installation.
5. a kind of steel slag hot disintegrating pre-processing device of high treating effect according to claim 4, it is characterised in that: described to hang
Assembling device (12) includes ceiling mounted tracks (14), is provided with mounting plate (10), the mounting plate below the ceiling mounted tracks (14)
(10) it is connected in the longitudinal direction riser (13) on the left of bottom face, is provided with steel slag feeding between front and back side riser (13)
It struggles against (6).
6. a kind of steel slag hot disintegrating pre-processing device of high treating effect according to claim 5, it is characterised in that: described perpendicular
It has been bolted to connection on plate (13) hook (4), has been provided with rotation seat (5) on steel slag feeding funnel (6) front/rear end,
Front and back side hanging hook (4) and front and back side rotation seat (5) are rotatablely connected.
7. a kind of steel slag hot disintegrating pre-processing device of high treating effect according to claim 6, it is characterised in that: the peace
It is equipped with cylinder (11) on the right side of loading board (10) upper surface, cylinder (11) output end is fixedly connected with link (9), the steel
It is fixedly connected with lower link (7) below slag feeding funnel (6) right side, is connected with bullet between the upper link (7) and lower link (7)
Spring (8).
8. a kind of steel slag hot disintegrating pre-processing device of high treating effect according to claim 7, it is characterised in that: described to hang
Filling track (14) bottom face is opening setting, is provided with mounting groove (19) in the ceiling mounted tracks (14), the mounting groove (19)
It is provided with roller groove (17) at left and right sides of interior bottom face opening, is provided with idler wheel (18) in the roller groove (17), left and right two
It is rotatably connected between side wheel (18) bull stick (20), bull stick (20) lower end is connected with connecting rod (16), the connecting rod
(16) lower end is stretched out outside opening and is arranged and is connected with fixed link (15), fixed link (15) lower end and mounting plate (10) upper surface
It is fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910866752.9A CN110423852A (en) | 2019-09-12 | 2019-09-12 | A kind of steel slag hot disintegrating pre-processing device of high treating effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910866752.9A CN110423852A (en) | 2019-09-12 | 2019-09-12 | A kind of steel slag hot disintegrating pre-processing device of high treating effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110423852A true CN110423852A (en) | 2019-11-08 |
Family
ID=68418225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910866752.9A Pending CN110423852A (en) | 2019-09-12 | 2019-09-12 | A kind of steel slag hot disintegrating pre-processing device of high treating effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110423852A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54161596A (en) * | 1978-06-12 | 1979-12-21 | Sumitomo Metal Ind Ltd | Heat recovering method for molten slag |
| JPS6183876A (en) * | 1984-09-29 | 1986-04-28 | 日本磁力選鉱株式会社 | Method of treating steel-making dephosphorized slag |
| CN102230036A (en) * | 2011-04-02 | 2011-11-02 | 中冶建筑研究总院有限公司 | Waste-heat pressure closed-loop thermal treatment method for molten steel slag |
| CN205241713U (en) * | 2015-12-18 | 2016-05-18 | 马鞍山钢铁股份有限公司 | Processing apparatus before melting slag heat is vexed |
| CN108559810A (en) * | 2018-03-13 | 2018-09-21 | 济钢集团国际工程技术有限公司 | Pretreatment of slag device |
| CN109811094A (en) * | 2019-03-05 | 2019-05-28 | 许晖 | A kind of device and method using blowing process pretreatment steel slag |
-
2019
- 2019-09-12 CN CN201910866752.9A patent/CN110423852A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54161596A (en) * | 1978-06-12 | 1979-12-21 | Sumitomo Metal Ind Ltd | Heat recovering method for molten slag |
| JPS6183876A (en) * | 1984-09-29 | 1986-04-28 | 日本磁力選鉱株式会社 | Method of treating steel-making dephosphorized slag |
| CN102230036A (en) * | 2011-04-02 | 2011-11-02 | 中冶建筑研究总院有限公司 | Waste-heat pressure closed-loop thermal treatment method for molten steel slag |
| CN205241713U (en) * | 2015-12-18 | 2016-05-18 | 马鞍山钢铁股份有限公司 | Processing apparatus before melting slag heat is vexed |
| CN108559810A (en) * | 2018-03-13 | 2018-09-21 | 济钢集团国际工程技术有限公司 | Pretreatment of slag device |
| CN109811094A (en) * | 2019-03-05 | 2019-05-28 | 许晖 | A kind of device and method using blowing process pretreatment steel slag |
Non-Patent Citations (2)
| Title |
|---|
| 章瑞平: "本钢转炉钢渣处理工艺方案的选择 ", 《本钢技术》 * |
| 胡治春: "宝钢滚筒法渣处理工艺的发展现状与改进分析 ", 《科技促进发展》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110216487A (en) | Metal support product automation flexible production line and production method | |
| CN205616840U (en) | Dry coke quenching device of packing into | |
| CN201473205U (en) | Large-tonnage concrete segment turning machine in tunnel | |
| CN105420432B (en) | A kind of replacing options of blast furnace cooling stave | |
| CN204638674U (en) | A kind of gas cylinder polishing foreign matter cleaning plant | |
| CN110423852A (en) | A kind of steel slag hot disintegrating pre-processing device of high treating effect | |
| CN208265647U (en) | A kind of hot-blast stove overhaul constructs refractory material into furnace transport device | |
| CN106191925A (en) | A kind of electrolytic aluminium anode carbon block green compact cooling body | |
| CN104988525B (en) | Water heater liner automatic spray pickling pre-treating method, workpiece Special hanging basket | |
| CN209029940U (en) | A kind of robot battery charging unit | |
| CN207645231U (en) | Used eyelid retractor when for replacing belt roller | |
| CN216397369U (en) | Energy-saving air shower with low electric energy loss | |
| CN205345981U (en) | Automatic gliding auto -induction formula feed mechanism | |
| CN205846579U (en) | A kind of high-tension line insulation operation platform | |
| CN206052173U (en) | A kind of electrolytic aluminium anode carbon block green compact cooling body | |
| CN204960273U (en) | Protection handling frame instrument formula steel platform in elevartor shaft | |
| CN207582931U (en) | A kind of elevating scaffold lifting device | |
| CN208195589U (en) | Precoated sand casting device | |
| CN209456910U (en) | A kind of entirety drops formula beam column support removing tool | |
| CN207295596U (en) | A kind of quick dust falling device of construction | |
| CN209317253U (en) | A kind of ash discharging mechanism of energy-saving high-pressure nozzle bag dust collector | |
| CN209080859U (en) | Turnover box feeding device | |
| CN208466657U (en) | A kind of Novel automatic-rotating die cleaning apparatus | |
| CN203173193U (en) | Batch can for producing steel | |
| CN206316453U (en) | A kind of safeguard structure for crop flying shear |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191108 |