CN112121921A - Ball forming machine for metal waste products - Google Patents
Ball forming machine for metal waste products Download PDFInfo
- Publication number
- CN112121921A CN112121921A CN202011091337.XA CN202011091337A CN112121921A CN 112121921 A CN112121921 A CN 112121921A CN 202011091337 A CN202011091337 A CN 202011091337A CN 112121921 A CN112121921 A CN 112121921A
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- Prior art keywords
- rotating shaft
- cone pulley
- metal
- cone
- casing
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/14—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
- B02C13/18—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor
- B02C13/1807—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor the material to be crushed being thrown against an anvil or impact plate
- B02C13/1814—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor the material to be crushed being thrown against an anvil or impact plate by means of beater or impeller elements fixed on top of a disc type rotor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/282—Shape or inner surface of mill-housings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/30—Driving mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/282—Shape or inner surface of mill-housings
- B02C2013/2825—Shape or inner surface of mill-housings with fastening means for fixing lining members to the inner surface of mill-housings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
- B02C2201/06—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage
Abstract
The invention discloses a metal waste ball forming machine, which relates to the technical field of waste metal recovery equipment and comprises a base, a machine shell and a driving device, wherein a feeding port is formed in the top of the machine shell, a rotating shaft is arranged below the feeding port, the driving device is used for driving the rotating shaft to rotate, a discharging port is formed in the bottom of the machine shell, a plurality of cone pulleys are sequentially arranged on the rotating shaft from top to bottom, the cone pulleys are in a circular truncated cone shape, the diameters of the bottom surfaces of the cone pulleys are sequentially increased from top to bottom, a plurality of plate hammers are fixedly arranged on the side surfaces of the cone pulleys, a plurality of lining plates are fixedly arranged on the inner wall of the machine shell, the rotating shaft, the plate hammers and the lining plates are all made of high-strength alloy steel, and the filtering device is a screen mesh. Is beneficial to improving the recovery price of the metal clusters and the economic benefit.
Description
Technical Field
The invention relates to the technical field of waste metal recovery equipment, in particular to a metal waste ball forming machine.
Background
The scrapped quantity of domestic waste metals is rapidly increased all the time, the metal demand in China is very large, so the utilization and recovery of the waste metals are critical, the waste classification work in China is not perfect, the waste metals recovered by a waste recovery mechanism contain a large amount of non-metal impurities, such as plastics, paper, dust, coatings falling off from the metal surface and the like, when metal smelting enterprises purchase the waste metals from the waste recovery mechanism, the requirements on the content of the non-metal impurities in the waste metals and the size of the waste metals are met, the lower the content of the impurities and the smaller the size are, the more regular the size is, the higher the recovery price is, and the birth of metal recovery equipment is created, which is also the origin of a metal ball machine.
The metal ball machine utilizes the turning force that the velocity ratio switching between motor and the belt pulley produced, drive heavy cutter and tool bit on self blade disc and carry out the high speed to the thing of waiting to smash that gets into crushing chamber, the impact of high pressure, the collision will smash the thing and tear the fritter that accords with the specification, strike back again behind the welt and form the fritter of smashing many times after heavy cutter and tool bit and fall to the sieve mesh naturally, the nature of qualified ejection of compact size is discharged, the crushing thing that does not reach standard will be taken up again after the accumulation by cutter and tool bit and circulate and smash to qualified ejection of compact size and fall into the discharge gate through the sieve mesh, and separate metal and nonmetal.
At present, most of cutter heads used by metal ball machines in the market are cylindrical and large in size, occupy most of the volume of a crushing cavity, influence the processing capacity of the metal ball machines, and in order to improve the speed of processing waste metals, the distance between a cutter and a lining plate is large, so that the produced metal balls are large in size, contain a large amount of flaky and blocky metal balls, are irregular in shape, have low occupation ratio of the spherical metal balls, and are not beneficial to improving the recovery price.
Disclosure of Invention
The invention aims to: the metal waste ball forming machine can produce metal balls with small sizes and regular shapes, and solves the problems that the metal ball forming machine in the prior art is low in processing capacity and the produced metal balls are irregular in shape.
The technical scheme adopted by the invention is as follows:
a metal waste ball forming machine comprises a base, a machine shell and a driving device, wherein the machine shell is fixedly arranged on the base, the machine shell is cylindrical, a feeding port is arranged at the top of the machine shell, a rotating shaft is arranged on the axis of the machine shell, the rotating shaft is movably connected with the shell through a bearing, the driving device is used for driving the rotating shaft to rotate, a discharge port is arranged at the bottom of the casing, a filtering device is arranged at the inlet of the discharge port, a plurality of cone pulleys are sequentially arranged on the rotating shaft from top to bottom, the cone pulley is fixedly connected with the rotating shaft, the cone pulley is in a round table shape, the diameters of the bottom surfaces of the cone pulley are sequentially increased from top to bottom, a plurality of plate hammers are fixedly arranged on the side surface of the cone pulley, a plurality of lining plates are fixedly arranged on the inner wall of the shell, the rotating shaft, the plate hammer and the lining plate are all made of high-strength alloy steel, and the filtering device is a screen.
Further, drive arrangement includes driving motor, action wheel, follows driving wheel, driving belt, driving motor with base fixed connection, fixed mounting has in driving motor's the pivot the action wheel, the upper end fixed mounting of pivot has from the driving wheel, the action wheel, pass through from the driving wheel driving belt power is connected.
Further, a feed hopper is arranged above the feeding port, and the area of an inlet of the feed hopper is larger than that of the feeding port.
Furthermore, a stirring blade is arranged between the cone pulley and the feeding port, and the stirring blade is fixedly connected with the uppermost cone pulley.
Furthermore, the included angle between the side surface of the uppermost cone pulley and the horizontal plane is equal to the included angle between the side surfaces of the rest cone pulleys and the horizontal plane.
Further, the board hammer along the axis of pivot is central symmetry and sets up, the board hammer includes fixing base, tup, the fixing base with the side fixed connection of cone pulley, the tup passes through bolt fixed mounting in on the fixing base.
Further, the side surface of the tower wheel positioned at the top and the side surfaces of the rest tower wheels are positioned in the same curved surface.
Further, the minimum distance between the plate hammer and the lining plate is between 3 and 6 mm.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
(1) in the prior art, a cylindrical cone pulley is mostly adopted, the occupied space is large, and because the gap between a cutter and a lining plate is fixed, large-size waste metal is not easy to enter after entering from a feeding port.
(2) The invention adopts the cone pulley in the shape of the cone frustum, and can increase the bottom surface area of the cone pulley by changing the included angle between the side surface of the cone pulley and the horizontal plane on the premise of not changing the volume of the cone pulley, thereby reducing the space between the plate hammer and the lining plate, leading the size of the produced metal cluster to be smaller, and solving the problem that the processing capacity of the metal cluster machine is influenced by the space between the cutter and the lining plate when a cylindrical cutter head is adopted in the prior art.
(3) The cone pulley adopted by the invention enables the gap between the plate hammer and the lining plate to be gradually reduced from top to bottom, metal with small size is easier to fall along the outer side of the cone pulley, metal with large size is clamped between the cone pulley and the lining plate, dynamic layering is formed in the gap between the cone pulley and the lining plate according to size and volume, the gap between the metal is reduced, the chances of collision and extrusion between metal blocks are greatly increased, irregular flaky and blocky metal tends to form a regular sphere in the process to reduce the acting force applied during collision and extrusion, and the proportion of metal blocks with regular shape in a product discharged from the discharge hole is increased.
Drawings
Fig. 1 is a front view structural diagram of the present invention.
Fig. 2 is a sectional view taken along line B-B in fig. 1.
Fig. 3 is a right side view of the housing of the present invention.
Fig. 4 is a top view of the housing of the present invention.
Fig. 5 is a top view of a first cone pulley of the present invention.
Fig. 6 is a top view of a third cone pulley of the present invention.
Fig. 7 is a top view of the liner of the present invention.
Fig. 8 is an enlarged view of a portion a in fig. 1.
The labels in the figure are: 1-base, 2-machine shell, 3-material inlet, 4-rotating shaft, 5-material outlet, 6-filtering device, 7-plate hammer, 8-lining plate, 9-driving motor, 10-driving wheel, 11-driven wheel, 12-belt, 13-feed hopper, 14-stirring blade, 15-fixed seat, 16-hammer head, 17-first cone pulley, 18-second cone pulley, and 19-third cone pulley.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
The metal waste ball forming machine comprises a base 1, a machine shell 2 and a driving device, wherein the machine shell 2 is fixedly arranged on the base 1, the machine shell 2 is cylindrical, the top of the machine shell 2 is provided with 2 feeding ports 3, the axis of the machine shell 2 is provided with a rotating shaft 4, two ends of the rotating shaft 4 are movably connected with the machine shell 2 through bearings, the driving device comprises a driving motor 9, a driving wheel 10, a driven wheel 11 and a transmission belt 12, the driving motor 9 is fixedly connected with the base 1, the rotating shaft of the driving motor 9 is fixedly provided with the driving wheel 10, the upper end of the rotating shaft 4 is fixedly provided with the driven wheel 11, the driving wheel 10 and the driven wheel 11 are in power connection through the transmission belt 12, the driving motor 9 adopts a high-power three-phase asynchronous alternating current motor with the model of YX3-200L1-2, the rated power is 30kW, the filtering device 6 is a screen mesh, the diameter of a mesh of the filtering device is 3mm, a first cone pulley 17, a second cone pulley 18 and a third cone pulley 19 which are in a circular truncated cone shape are sequentially arranged on the rotating shaft 4 from top to bottom, the diameters of the bottom surfaces of the first cone pulley 17, the second cone pulley 18 and the third cone pulley 19 are sequentially increased, 4 plate hammers 7 are respectively and fixedly arranged on the side surfaces of the first cone pulley 17, the second cone pulley 18 and the third cone pulley 19, a lining plate 8 is fixedly arranged on the inner wall of the casing 2, 3 layers of the lining plate 8 are arranged from top to bottom, 12 lining plates 8 are symmetrically arranged around the rotating shaft 4, the rotating shaft 4 is made of 40Cr alloy steel, and the material has good plasticity, toughness and wear resistance, and the plate hammers 7 and the lining plate 8 are made of high manganese steel, and have the advantages of high hardness, impact resistance and wear resistance.
In this embodiment, be equipped with feeder hopper 13 above pan feeding mouth 3, feeder hopper 13 has 1 entry and 2 exports, and feeder hopper 13's export communicates with 2 pan feeding mouths 3 respectively, and feeder hopper 13's entry area is greater than the area sum of 2 pan feeding mouths 3.
In this embodiment, a stirring blade 14 is disposed between the first cone pulley 17 and the feeding port 3, and is used to stir the waste metal entering from the feeding port 3, and make the waste metal move to the outer side of the stirring blade 14 under the action of centrifugal force, and fall into the gap between the first cone pulley 17 and the lining plate 8, the stirring blade 14 is fixedly connected to the upper surface of the first cone pulley 17 through a bolt, the stirring blade 14 is shaped as a vertical plate, and the stirring blade 14 is connected to the rotating shaft 4.
In this embodiment, the included angles between the side surfaces of the first cone pulley 17, the second cone pulley 18, and the third cone pulley 19 and the horizontal plane are all 80 °, and the side surfaces of the first cone pulley 17, the second cone pulley 18, and the third cone pulley 19 are located in the same curved plane.
In this embodiment, the board hammer 7 is central symmetry setting along the axis of pivot 4, and board hammer 7 includes fixing base 15, tup 16, and fixing base 15 and the side fixed connection of cone pulley, tup 16 pass through bolt fixed mounting on fixing base 15, and the plane at tup 16 and fixing base 15's contact surface place coincides with the axis of pivot 4, and the shape of tup 16 is the cuboid.
In this embodiment, the distances between the lining plate 8 and the plate hammers 7 on the first cone pulley 17, the second cone pulley 18 and the third cone pulley 19 are sequentially reduced, and the distance between the plate hammers 7 on the third cone pulley 19 and the lining plate 8 is 3 mm.
The working principle is as follows: through the arrangement, the rotating shaft 4 is driven to rotate at a high speed through the driving motor 9, then the first cone pulley 17, the second cone pulley 18 and the third cone pulley 19 are driven to rotate, waste metal is crushed and extruded through the plate hammer 7 and the lining plate 8, when the device is used, the waste metal is fed from the feed hopper 13, is stirred through the stirring blade 14, is moved to a gap between the shell 2 and the first cone pulley 17, is prevented from being accumulated above the first cone pulley 17, enters the gap between the first cone pulley 17 and the shell 2, is repeatedly collided between the plate hammer 7 and the lining plate 8 through the high-speed rotation of the plate hammer 7, is gradually crushed into small blocks and moves downwards along the outer side of the cone pulleys, and as the distances between the first cone pulley 17, the second cone pulley 18 and the third cone pulley 19 and the shell 2 are gradually reduced, the waste metal which cannot pass through stays between the cone pulleys and the shell 2, the waste metal continuously falls down until the metal blocks are crushed into metal blocks with smaller sizes, the waste metal is mutually impacted and extruded in the process of high-speed movement, the shape of the waste metal gradually approaches to a spherical shape, the metal blocks with the size less than 3mm are screened by a screen and discharged from a discharge port 5, and the metal blocks with larger sizes stay in a shell 2 for continuous treatment.
Example 2
The metal waste ball forming machine comprises a base 1, a machine shell 2 and a driving device, wherein the machine shell 2 is fixedly arranged on the base 1, the machine shell 2 is cylindrical, the top of the machine shell 2 is provided with 2 feeding ports 3, the axis of the machine shell 2 is provided with a rotating shaft 4, two ends of the rotating shaft 4 are movably connected with the machine shell 2 through bearings, the driving device comprises a driving motor 9, a driving wheel 10, a driven wheel 11 and a transmission belt 12, the driving motor 9 is fixedly connected with the base 1, the rotating shaft of the driving motor 9 is fixedly provided with the driving wheel 10, the upper end of the rotating shaft 4 is fixedly provided with the driven wheel 11, the driving wheel 10 and the driven wheel 11 are in power connection through the transmission belt 12, the driving motor 9 adopts a high-power three-phase asynchronous alternating current motor with the model of YX3-200L1-2, the rated power is 30kW, the filtering device 6 is a screen mesh, the diameter of a mesh of the filtering device is 3mm, a first cone pulley 17, a second cone pulley 18 and a third cone pulley 19 which are in a circular truncated cone shape are sequentially arranged on the rotating shaft 4 from top to bottom, the diameters of the bottom surfaces of the first cone pulley 17, the second cone pulley 18 and the third cone pulley 19 are sequentially increased, 4 plate hammers 7 are respectively and fixedly arranged on the side surfaces of the first cone pulley 17, the second cone pulley 18 and the third cone pulley 19, a lining plate 8 is fixedly arranged on the inner wall of the casing 2, 3 layers of the lining plate 8 are arranged from top to bottom, 12 lining plates 8 are symmetrically arranged around the rotating shaft 4, the rotating shaft 4 is made of 40Cr alloy steel, and the material has good plasticity, toughness and wear resistance, and the plate hammers 7 and the lining plate 8 are made of high manganese steel, and have the advantages of high hardness, impact resistance and wear resistance.
In this embodiment, be equipped with feeder hopper 13 above pan feeding mouth 3, feeder hopper 13 has 1 entry and 2 exports, and feeder hopper 13's export communicates with 2 pan feeding mouths 3 respectively, and feeder hopper 13's entry area is greater than the area sum of 2 pan feeding mouths 3.
In this embodiment, a stirring blade 14 is disposed between the first cone pulley 17 and the feeding port 3, and is used to stir the waste metal entering from the feeding port 3, and make the waste metal move to the outer side of the stirring blade 14 under the action of centrifugal force, and fall into the gap between the first cone pulley 17 and the lining plate 8, the stirring blade 14 is fixedly connected to the upper surface of the first cone pulley 17 through a bolt, the stirring blade 14 is shaped as a vertical plate, and the stirring blade 14 is connected to the rotating shaft 4.
In this embodiment, the included angles between the side surfaces of the first cone pulley 17, the second cone pulley 18, and the third cone pulley 19 and the horizontal plane are all 85 °, and the side surfaces of the first cone pulley 17, the second cone pulley 18, and the third cone pulley 19 are located in the same curved surface.
In this embodiment, the board hammer 7 is central symmetry setting along the axis of pivot 4, and board hammer 7 includes fixing base 15, tup 16, and fixing base 15 and the side fixed connection of cone pulley, tup 16 pass through bolt fixed mounting on fixing base 15, and the plane at tup 16 and fixing base 15's contact surface place coincides with the axis of pivot 4, and the shape of tup 16 is the cuboid.
In this embodiment, the distances between the lining plate 8 and the plate hammers 7 on the first cone pulley 17, the second cone pulley 18 and the third cone pulley 19 are sequentially reduced, and the distance between the plate hammers 7 on the third cone pulley 19 and the lining plate 8 is 6 mm.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. Metal waste ball forming machine comprises a base (1), a casing (2) and a driving device, wherein the casing (2) is fixedly installed on the base (1), the casing (2) is cylindrical, a feeding hole (3) is formed in the top of the casing (2), a rotating shaft (4) is arranged on the axis of the casing (2), two ends of the rotating shaft (4) are movably connected with the casing (2) through bearings, the driving device is used for driving the rotating shaft (4) to rotate, a discharging hole (5) is formed in the bottom of the casing (2), a filtering device (6) is arranged at an inlet of the discharging hole (5), the metal waste ball forming machine is characterized in that a plurality of cone pulleys are sequentially arranged on the rotating shaft (4) from top to bottom, the cone pulleys are fixedly connected with the rotating shaft (4), the cone pulleys are in a circular truncated cone shape, and the diameter of the bottom surfaces of the cone pulleys is sequentially increased from top to, the side fixed mounting of cone pulley has a plurality of board hammer (7), the inner wall fixed mounting of casing (2) has a plurality of welt (8), pivot (4), board hammer (7), welt (8) all use high strength alloy steel, filter equipment (6) are the screen cloth.
2. The metal waste ball forming machine according to claim 1, wherein the driving device comprises a driving motor (9), a driving wheel (10), a driven wheel (11) and a transmission belt (12), the driving motor (9) is fixedly connected with the base (1), the driving wheel (10) is fixedly installed on a rotating shaft of the driving motor (9), the driven wheel (11) is fixedly installed at the upper end of the rotating shaft (4), and the driving wheel (10) and the driven wheel (11) are in power connection through the transmission belt (12).
3. The metal scrap pelletizing machine according to claim 1, characterized in that a feed hopper (13) is arranged above the feeding opening (3), and the inlet area of the feed hopper (13) is larger than the area of the feeding opening (3).
4. The metal waste ball agglomerating machine according to claim 1, wherein a stirring blade (14) is arranged between the cone pulley and the feeding port (3), and the stirring blade (14) is fixedly connected with the uppermost cone pulley.
5. The metal scrap ball agglomerating machine according to claim 1, wherein the included angle between the side surface of the uppermost cone pulley and the horizontal plane is equal to the included angle between the side surfaces of the remaining cone pulleys and the horizontal plane.
6. The metal scrap ball agglomerating machine according to claim 4, wherein the plate hammers (7) are arranged in a central symmetry mode along the axis of the rotating shaft (4), each plate hammer (7) comprises a fixed seat (15) and a hammer head (16), the fixed seats (15) are fixedly connected with the side faces of the cone pulleys, and the hammer heads (16) are fixedly installed on the fixed seats (15) through bolts.
7. The metal scrap ball agglomerating machine according to claim 5, wherein the side surface of the uppermost cone pulley and the side surfaces of the remaining cone pulleys are positioned in the same curved surface.
8. The metal scrap pelletizing machine according to claim 6, characterized in that the minimum distance between the plate hammer (7) and the lining plate (8) is between 3 and 6 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011091337.XA CN112121921A (en) | 2020-10-13 | 2020-10-13 | Ball forming machine for metal waste products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011091337.XA CN112121921A (en) | 2020-10-13 | 2020-10-13 | Ball forming machine for metal waste products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112121921A true CN112121921A (en) | 2020-12-25 |
Family
ID=73854038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011091337.XA Pending CN112121921A (en) | 2020-10-13 | 2020-10-13 | Ball forming machine for metal waste products |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112121921A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114985418A (en) * | 2022-06-11 | 2022-09-02 | 淄博大力矿山机械有限公司 | Metal pellet machine |
-
2020
- 2020-10-13 CN CN202011091337.XA patent/CN112121921A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114985418A (en) * | 2022-06-11 | 2022-09-02 | 淄博大力矿山机械有限公司 | Metal pellet machine |
| CN114985418B (en) * | 2022-06-11 | 2023-08-08 | 淄博大力矿山机械有限公司 | Metal ball machine |
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