CN220716050U - Pre-crushing device for graphite crucible production raw materials - Google Patents
Pre-crushing device for graphite crucible production raw materials Download PDFInfo
- Publication number
- CN220716050U CN220716050U CN202322052835.9U CN202322052835U CN220716050U CN 220716050 U CN220716050 U CN 220716050U CN 202322052835 U CN202322052835 U CN 202322052835U CN 220716050 U CN220716050 U CN 220716050U
- Authority
- CN
- China
- Prior art keywords
- filter screen
- graphite
- vibrator
- wall
- structure barrel
- 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.)
- Active
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 57
- 239000010439 graphite Substances 0.000 title claims abstract description 57
- 239000002994 raw material Substances 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 81
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 238000001914 filtration Methods 0.000 claims abstract description 6
- 230000008719 thickening Effects 0.000 claims description 10
- 238000012216 screening Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 1
- 230000009471 action Effects 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002006 petroleum coke Substances 0.000 description 1
- 239000006253 pitch coke Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Landscapes
- Crushing And Grinding (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
The utility model relates to the technical field of production raw materials, in particular to a pre-crushing device for a graphite crucible production raw material, which comprises a mounting platform and a structural cylinder body, wherein the structural cylinder body is fixedly mounted on the mounting platform, a servo motor is mounted at the upper part of the structural cylinder body, the lower end of the servo motor is connected with a crushing device, a filtering device is arranged in the structural cylinder body, a vibrating mechanism is arranged in the structural cylinder body, a coarse material outlet and a qualified material outlet are formed in the side wall of the structural cylinder body, a control switch is fixedly mounted on the side wall of the structural cylinder body, a qualified material collecting box is arranged right below the qualified material outlet, a bolt is arranged on a motor mounting seat, and the servo motor is fixedly mounted on a motor mounting seat.
Description
Technical Field
The utility model relates to the technical field of production raw materials, in particular to a pre-crushing device for a graphite crucible production raw material.
Background
The graphite crucible is processed by taking natural crystalline flake graphite as a main raw material and taking plastic refractory clay or carbon as a binder, and has the characteristics of high temperature resistance, strong heat conduction performance, good corrosion resistance, long service life and the like. In the high-temperature use process, the thermal expansion coefficient is small, and the alloy has certain strain resistance to quenching and rapid heating. Has strong corrosion resistance to acidic and alkaline solutions, excellent chemical stability and no participation in any chemical reaction in the smelting process. The inner wall of the graphite crucible is smooth, and molten metal liquid is not easy to leak and adhere to the inner wall of the crucible, so that the metal liquid has good fluidity and casting property, and is suitable for casting and forming of various different moulds. Because the graphite crucible has the excellent characteristics, the graphite crucible is widely used for smelting alloy tool steel and nonferrous metals and alloys thereof.
Graphite is an allotrope of carbon, is a gray black opaque solid, has stable chemical property, is corrosion-resistant, and is not easy to react with agents such as acid, alkali and the like. Natural graphite is from graphite mineral reservoirs, or can be prepared from petroleum coke, pitch coke, etc. as raw materials by a series of processing steps. Graphite burns in oxygen to produce carbon dioxide, which can be oxidized by strong oxidants such as concentrated nitric acid, potassium permanganate, etc. The high-purity graphite can be used as antiwear agent and lubricant, and used as neutron moderator in atomic reactor, and can also be used for manufacturing crucible, electrode, brush, dry cell, graphite fiber, heat exchanger, cooler, electric arc furnace, arc lamp, pencil lead, etc.
The preliminary reducing mechanism to graphite raw materials is rough machining mostly in the present market, and the ejection of compact quality is difficult to control, owing to sieving mechanism is more single during rough machining in addition, often leads to ejection of compact inefficiency owing to the coarse fodder jam in the course of working, so we propose a graphite crucible raw materials's pre-crushing device for solving above-mentioned problem.
Disclosure of Invention
The utility model aims to solve the defects in the prior art, and provides a pre-crushing device for raw materials for producing graphite crucibles.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a graphite crucible production raw materials's pre-crushing device, includes mounting platform and structure barrel, structure barrel fixed mounting is on mounting platform, servo motor is installed on structure barrel upper portion, the servo motor lower extreme is connected with reducing mechanism, the inside filter equipment that is provided with of structure barrel, the inside vibrating mechanism that is provided with of structure barrel, coarse fodder export and qualified material export have been seted up on the structure barrel lateral wall, fixed mounting has control switch on the structure barrel lateral wall, be provided with graphite raw materials entry on the structure barrel, just the back of structure barrel is provided with the access hole.
Preferably, a coarse material collecting box is arranged right below the coarse material outlet, and a qualified material collecting box is arranged right below the qualified material outlet.
Preferably, the motor mounting seat is fixedly arranged at the top of the structural cylinder body, a bolt is arranged on the motor mounting seat, and the servo motor is fixedly arranged on the motor mounting seat.
Preferably, the smashing device comprises a rotating shaft and graphite smashing blades, the rotating shaft is fixedly connected to the output end of the servo motor, a blade mounting seat is mounted at the lower end of the rotating shaft, and four graphite smashing blades are fixedly mounted on the blade mounting seat.
Preferably, the vibration device comprises a vibrator and a vibrator shade, wherein the vibrator is fixedly arranged on the inner wall of the structural cylinder, the vibrator shade is fixedly arranged above the vibrator, and the vibrator shade completely shields the vibrator from above.
Preferably, the filtering device comprises a rigid filter screen, a thickened rigid support screen, a coarse material filter screen, a qualified material filter screen and a graphite collecting bottom plate, wherein the periphery of the rigid filter screen is arranged on the inner wall of the structural cylinder, primary screening round holes are densely distributed on the rigid filter screen, the periphery of the thickened rigid support screen is arranged on the inner wall of the structural cylinder, the thickened rigid support screen is closely attached to the rigid filter screen, and the aperture and the round holes of the thickened rigid support screen are distributed with the rigid filter screen.
Preferably, a coarse material filter screen is arranged right below the thickened rigid support net, the coarse material filter screen is obliquely arranged on the inner wall of the structural cylinder body, the lowest part of the coarse material filter screen is smoothly connected with the coarse material outlet, a qualified material filter screen is arranged right below the coarse material filter screen, and the periphery of the qualified material filter screen is horizontally arranged on the inner wall of the structural cylinder body.
Preferably, a graphite collecting bottom plate is arranged right below the qualified material filter screen, the graphite collecting bottom plate is obliquely arranged on the inner wall of the structural cylinder body, and the lowest part of the graphite collecting bottom plate is smoothly connected with the qualified material outlet.
According to the pre-crushing device for the graphite crucible production raw materials, the crushing device is connected with the crushing device through the servo motor, so that the raw materials can be crushed thoroughly according to the output power set according to the size of the graphite raw materials, and in addition, the raw materials which are remained below and are not crushed completely can be turned over to the upper layer for re-stirring through reverse rotation.
According to the pre-crushing device for the production raw materials of the graphite crucible, provided by the utility model, the quality of qualified materials is better through the three-layer filtering system, and in addition, the coarse material outlet and the vibration system are also arranged, so that the coarse material is prevented from being deposited in the filter screen, and the discharging rate of the qualified materials is improved.
Drawings
FIG. 1 is a schematic perspective view of a pre-crushing device for graphite crucible production materials;
FIG. 2 is a right side view of a pre-crushing device for graphite crucible production raw materials according to the present utility model;
fig. 3 is a schematic cross-sectional view of a pre-crushing device for graphite crucible production raw materials according to the present utility model.
In the figure: 1. a mounting platform; 2. a structural cylinder; 3. a control switch; 4. a coarse material outlet; 5. a coarse material collection box; 6. a qualified material outlet; 7. a qualified material collection box; 8. a motor mounting seat; 9. a bolt; 10. a servo motor; 11. a rotating shaft; 12. a blade mounting base; 13. crushing the graphite; 14. a rigid filter screen; 15. thickening the rigid support net; 16. a coarse material filter screen; 17. a qualified material filter screen; 18. a graphite collection bottom plate; 19. a vibrator; 20. a vibrator mask; 21. and a graphite raw material inlet.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1-3, a pre-crushing device for graphite crucible production raw materials comprises a mounting platform 1 and a structural cylinder 2, wherein the structural cylinder 2 is fixedly mounted on the mounting platform 1, a servo motor 10 is mounted on the upper portion of the structural cylinder 2, the lower end of the servo motor 10 is connected with a crushing device, a filtering device is arranged inside the structural cylinder 2, a vibrating mechanism is arranged inside the structural cylinder 2, a coarse material outlet 4 and a qualified material outlet 6 are formed in the side wall of the structural cylinder 2, a control switch 3 is fixedly mounted on the side wall of the structural cylinder 2, a coarse material collecting box 5 is arranged under the coarse material outlet 4, a qualified material collecting box 7 is arranged under the qualified material outlet 6, a graphite raw material inlet is formed in the structural cylinder 2, and an overhaul port is formed in the back of the structural cylinder 2.
In this embodiment, motor mount pad 8 is fixed mounting at structure barrel 2 top, is provided with bolt 9 on the motor mount pad 8, and servo motor 10 fixed mounting is on motor mount pad 8, and reducing mechanism includes pivot 11 and graphite crushing blade 13, and pivot 11 fixed connection is on servo motor 10 output, and blade mount pad 12 is installed to pivot 11 lower extreme, and four graphite crushing blades 13 of fixed mounting are gone up to blade mount pad 12.
In this embodiment, vibrating device includes vibrator 19 and vibrator shade 20, vibrator 19 fixed mounting is on the inner wall of structure barrel 2, vibrator shade 20 fixed mounting is in vibrator 19 top, and vibrator shade 20 shields the top of vibrator 19 completely, it should be noted that vibrator 19 is prior art, do not do too much in this and do not give in addition, the filter material of vibrator shade 20's setting mainly prevents the top influences the normal work of vibrator 19, vibrator 19 during operation drives overall structure vibration, thereby the filter screen at every level follows the vibration and prevents rubble ink on the filter screen and pile up.
In this embodiment, filter equipment includes rigid filter screen 14, thickening rigid support net 15, coarse fodder filter screen 16, qualified material filter screen 17 and graphite collection bottom plate 18, rigid filter screen 14 border is installed on the inner wall of structure barrel 2, and the dense one-level screening round hole of spreading on the rigid filter screen 14, thickening rigid support net 15 border is installed on the inner wall of structure barrel 2, thickening rigid support net 15 closely adheres with rigid filter screen 14, and thickening rigid support net 15 aperture and round hole distribution are with rigid filter screen 14, it is to be noted that here the setting of two-layer primary rigid filter screen mainly increases the whole bearing capacity of filter screen, prevent that the filter screen from bearing too much raw materials and leading to the middle part sunken, thereby cause crushing incompletely.
In this embodiment, a coarse material filter screen 16 is disposed under the thickened rigid support net 15, the coarse material filter screen 16 is obliquely mounted on the inner wall of the structural cylinder 2, and the lowest part of the coarse material filter screen 16 is smoothly connected with the coarse material outlet 4, a qualified material filter screen 17 is mounted under the coarse material filter screen 16, and the circumference of the qualified material filter screen 17 is horizontally mounted on the inner wall of the structural cylinder 2.
In the embodiment, a graphite collecting bottom plate 18 is arranged right below the qualified material filter screen 17, the graphite collecting bottom plate 18 is obliquely arranged on the inner wall of the structural cylinder 2, and the lowest part of the graphite collecting bottom plate 18 is smoothly connected with the qualified material outlet 6.
In the utility model, when in use, the equipment is started to operate through the control switch 3, graphite raw materials are put into the graphite raw material inlet 21, the graphite raw materials enter the crushing device, the servo motor 10 provides power to drive the graphite crushing blades 13 to rotate so as to crush the graphite raw materials, if the incompletely crushed graphite raw materials sink into the bottom at the moment, the servo motor 10 is controlled to reversely turn over the deposited coarse materials at the bottom to the surface layer through the control switch 3 so as to crush the coarse materials more completely, at the moment, the completely crushed graphite raw materials fall onto the coarse material filter screen 16 through the rigid filter screen 14 and the thickened rigid support net 15, coarse materials cannot pass through the coarse material filter screen 16, enter the coarse material collecting box 5 through the coarse material outlet 4 under the action of the inclined surface of the coarse material filter screen 16 and the vibrator 19, when the coarse material collecting box 5 is fast full, the coarse materials in the coarse material collecting box 5 are thrown into the crushing device for secondary crushing, the fine materials entering the coarse material filter screen 16 fall onto the qualified filter screen 17 below, the qualified materials fall onto the bottom plate 18 under the action of the vibrator 19, the qualified materials sequentially pass through the bottom plate under the action of the vibrator 19, the action of the qualified materials fall onto the filter screen 18 through the inclined surface of the coarse material collecting box 18 and the vibrator, and the qualified materials fall onto the qualified materials through the cylindrical bin diameter of the filter screen 17 through the filter screen 7 under the action of the condition of the small-shaped filter screen and the condition, and the qualified materials can be taken out from the qualified materials through the filter screen diameter of the filter screen and the filter screen 3. In the working process of the utility model, the crushing device is connected through the servo motor 10, the output power can be set according to the size of the graphite raw material to enable the crushing to be more thorough, and in addition, the raw material which stays below and is not crushed completely can be turned over to the upper layer for re-stirring through reversing; meanwhile, the three-layer filtering system is arranged, so that the quality of qualified materials is better, the coarse material outlet 4 and the vibrating mechanism are arranged, coarse materials are prevented from being deposited in the filter screen, and the discharging rate of the qualified materials is improved.
While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (1)
1. The utility model provides a graphite crucible production raw materials's pre-crushing device, its characterized in that includes mounting platform (1) and structure barrel (2), structure barrel (2) fixed mounting is on mounting platform (1), servo motor (10) are installed on structure barrel (2) upper portion, servo motor (10) lower extreme is connected with reducing mechanism, structure barrel (2) inside is provided with filter equipment, structure barrel (2) inside is provided with vibrating mechanism, coarse fodder export (4) and qualified material export (6) have been seted up on structure barrel (2) lateral wall, fixed mounting has control switch (3) on structure barrel (2) lateral wall, be provided with graphite raw materials entry (21) on structure barrel (2), just the back of structure barrel (2) is provided with the access hole, coarse fodder export (4) are provided with coarse fodder collection box (5) under, qualified material export (6) are provided with qualified material collection box (7), structure barrel (2) top fixed mounting has motor mount pad (8), install blade (8) on the side wall and install blade (9) on grinding device (11), the rotary shaft (11) is fixedly connected to the output end of the servo motor (10), the lower end of the rotary shaft (11) is provided with a blade mounting seat (12), four graphite crushing blades (13) are fixedly arranged on the blade mounting seat (12), the vibration mechanism comprises a vibrator (19) and a vibrator shade (20), the vibrator (19) is fixedly arranged on the inner wall of the structural cylinder (2), the vibrator (20) is fixedly arranged above the vibrator (19), the vibrator shade (20) completely shields the upper part of the vibrator (19), the filtering device comprises a rigid filter screen (14), a thickening rigid support net (15), a coarse material filter screen (16), a qualified material filter screen (17) and a graphite collecting bottom plate (18), the periphery of the rigid filter screen (14) is arranged on the inner wall of the structural cylinder (2), the periphery of the thickening rigid filter screen (14) is provided with one-stage screening round holes, the thickening rigid support net (15) is arranged on the inner wall of the structural cylinder (2), the thickening rigid support net (15) and the rigid filter screen (14) are closely distributed with the rigid support net (14) and the diameter of the thickening rigid filter screen (16) is closely distributed with the rigid support net (16), the utility model discloses a graphite collection bottom plate, including structure barrel (2) inner wall, coarse fodder filter screen (16), coarse fodder outlet (4), coarse fodder filter screen (16) are installed on structure barrel (2) inner wall in the slope, just coarse fodder filter screen (16) minimum and coarse fodder outlet (4) are smooth-going, install qualified material filter screen (17) under coarse fodder filter screen (16), qualified material filter screen (17) border horizontal installation is on structure barrel (2) inner wall, graphite collection bottom plate (18) slope is installed on structure barrel (2) inner wall, just graphite collection bottom plate (18) minimum and qualified material outlet (6) are smooth-going to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322052835.9U CN220716050U (en) | 2023-08-02 | 2023-08-02 | Pre-crushing device for graphite crucible production raw materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322052835.9U CN220716050U (en) | 2023-08-02 | 2023-08-02 | Pre-crushing device for graphite crucible production raw materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220716050U true CN220716050U (en) | 2024-04-05 |
Family
ID=90493747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322052835.9U Active CN220716050U (en) | 2023-08-02 | 2023-08-02 | Pre-crushing device for graphite crucible production raw materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220716050U (en) |
-
2023
- 2023-08-02 CN CN202322052835.9U patent/CN220716050U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211274820U (en) | Unloading recovery unit is smashed to graphite powder | |
| CN201345398Y (en) | Regeneration and utilization system for waste lead-acid storage batteries and lead-containing waste | |
| CN113061673A (en) | Device and method for recycling crushing waste heat of high-temperature steel slag rotating bed | |
| US4188268A (en) | Process for an electrode for a lead battery | |
| CN220716050U (en) | Pre-crushing device for graphite crucible production raw materials | |
| CN215277526U (en) | Graphite crushing and screening device | |
| CN112958246A (en) | High-temperature steel slag disc crushing waste heat recovery device and method | |
| CN215312814U (en) | Ball mill for producing new material and green anode working section | |
| CN215612141U (en) | Broken waste heat recovery device of high temperature slag disc | |
| CN107224955A (en) | A kind of lithium battery silicon carbon anode material carbon coating device | |
| CN214572066U (en) | Broken waste heat recovery device of high temperature slag revolving bed | |
| CN214107396U (en) | Feeding device of pulverizer for graphite paper shredding production | |
| CN213335537U (en) | Rotary metal solid waste regeneration furnace | |
| CN213335498U (en) | Smelting furnace for refractory material production | |
| CN111004883B (en) | Solar energy molten reduced iron device and process | |
| CN217796603U (en) | Graphite processing is with smashing grading plant with dust removal function | |
| CN220716049U (en) | Waste recycling device for graphite crucible production | |
| CN2471450Y (en) | Apparatus for preparing semi-solid metal slurry | |
| CN221360066U (en) | Waste recovery device for natural graphite production | |
| CN215929565U (en) | Buffer device for feeding rotary kiln | |
| CN218167179U (en) | Building site rubbish pond | |
| CN216800157U (en) | Sieving mechanism is smashed to graphite | |
| CN214811188U (en) | Graphite farine processing is with smashing unloading recovery unit | |
| CN217315084U (en) | Industrial solid waste treatment equipment | |
| CN217221608U (en) | Novel cone crusher |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |