CN113441218A - Scrap steel breaker that removes dust - Google Patents
Scrap steel breaker that removes dust Download PDFInfo
- Publication number
- CN113441218A CN113441218A CN202110715877.9A CN202110715877A CN113441218A CN 113441218 A CN113441218 A CN 113441218A CN 202110715877 A CN202110715877 A CN 202110715877A CN 113441218 A CN113441218 A CN 113441218A
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- Prior art keywords
- dust
- shell
- sliding
- filter plate
- electric telescopic
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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
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
- B02C4/08—Crushing or disintegrating by roller mills with two or more rollers with co-operating corrugated or toothed crushing-rollers
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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
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/02—Feeding devices
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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
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
Abstract
The invention belongs to the technical field of crushers and discloses a dust-removing scrap steel crusher which comprises a shell, a crushing assembly, a rebound prevention assembly and a dust-removing assembly, wherein the top end of the shell is provided with a feed hopper, the crushing assembly is arranged in the shell and is used for crushing scrap steel, the rebound prevention assembly is positioned above the crushing assembly and comprises a shielding part and a driving part, the rebound prevention assembly is additionally arranged, after the scrap steel is added from the feed hopper, the scrap steel contacts a baffle plate, a pressure sensor receives information after the baffle plate is pressed, an electric telescopic rod can be contracted to enable one end of the hinged baffle plate to move downwards so as to enable the scrap steel to fall down, and when the baffle plate is not pressed, the electric telescopic rod pushes one end of the baffle plate to move upwards so as to block a feed port of the feed hopper and effectively prevent crushed steel from popping out from a feed port, the safety factor is high, and safety accidents are prevented from being caused.
Description
Technical Field
The invention belongs to the technical field of crushers, and particularly relates to a dust-removing scrap steel crusher.
Background
The crusher is a machine which utilizes external force to be applied on the crushed materials, overcomes the cohesion among material molecules and splits the large materials into a plurality of small pieces, and the steel scrap refers to steel waste materials (such as trimming, end cutting and the like) which are not products in the production process of steel plants and steel materials in used scrapped equipment and components, and the steel waste materials are called steel scrap; the main frame shell is made of extra-thick steel plates, and the lining is a high-manganese cast steel piece.
But there is certain defect in present steel scrap breaker, and traditional steel scrap breaker is when broken steel scrap because the extrusion force is great, causes broken steel to pop out from the charge door easily, and factor of safety is lower, causes the incident easily, and in addition, the getting rid of and the rejection of unqualified broken piece of dust of being not convenient for behind the broken steel of traditional steel scrap breaker, artifical manual separation is comparatively wasted time and energy.
Disclosure of Invention
The invention aims to provide a dust-removing scrap steel crusher, which aims to solve the problems that when the conventional scrap steel crusher provided by the background art is used for crushing scrap steel, the extrusion force is large, the crushed steel is easy to pop out from a feeding opening, and in addition, the conventional scrap steel crusher is inconvenient for removing dust and removing unqualified crushed pieces after crushing the scrap steel.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a scrap steel breaker of dust removal, includes casing, broken subassembly, prevents subassembly and the dust removal subassembly of kick-backing, the top of casing is equipped with the feeder hopper, broken subassembly is installed in the casing, and broken subassembly is used for carrying out the breakage to the scrap steel, prevent that the subassembly that kick-backs is located broken subassembly's top, and prevent that the subassembly that kick-backs includes sheltering from part and drive division, shelter from the part and prevent that the scrap steel from popping out from the feeder hopper when being used for broken steel of broken subassembly, drive division is used for the drive to shelter from partial removal to realize changing the size of feed port in the feeder hopper, the dust removal subassembly includes screening portion and collection part, screening portion is used for separately with the broken finished product and the dust of equidimension not, collection part is used for collecting the dust after the screening of screening portion.
Preferably, the shielding parts are provided with two groups, each group of shielding parts comprises a baffle, a connecting rod and two fixed blocks, the two fixed blocks are symmetrically fixed on the front side and the rear side of the inner wall of the feeding hopper, the connecting rod is connected between the two fixed blocks, and the baffle is rotatably installed outside the connecting rod;
the driving part comprises an electric telescopic rod, a second sliding groove, a sliding rod, a sliding ball and a pressure sensor, the electric telescopic rod is installed on the inner side wall of the feeding hopper, the sliding rod is fixed at the output end part of the electric telescopic rod, the sliding ball is fixed at the outer end part of the sliding rod, the second sliding groove is formed in the lower surface wall of the baffle, and the pressure sensor is installed inside the baffle.
Preferably, the screening part comprises a first filter plate and a second filter plate which are obliquely arranged in the shell and positioned below the crushing assembly, the second filter plate is positioned below the first filter plate, a first vibrator is arranged at one end of the lower surface wall of the first filter plate, a second vibrator is arranged at one end of the lower surface wall of the second filter plate, and the aperture of the first filter plate is larger than that of the second filter plate;
the collecting part comprises a dust collecting box which is located at the bottom inside the shell in a sliding mode, the upper wall of the dust collecting box is provided with a dust guiding inclined plane, sliding blocks are symmetrically fixed to the bottom end of the dust collecting box, and a first sliding groove matched with the sliding blocks is formed in the bottom inside the shell.
Preferably, the electric telescopic rods are obliquely installed, the sliding balls are matched with the second sliding grooves, two second sliding grooves are formed in the lower surface wall of each baffle, and the number of the electric telescopic rods, the number of the sliding rods and the number of the sliding balls are the same as that of the second sliding grooves.
Preferably, the crushing assembly is arranged at the upper end of the inner part of the shell, the crushing assembly comprises two crushing rollers connected through a motor, and the two crushing rollers are arranged at equal heights.
Preferably, the guide plates are symmetrically fixed on two sides of the top end inside the shell, and the guide plates are obliquely fixed.
Preferably, the side wall of the shell is connected with a first collecting nozzle at the lower end of the first filter plate, and the side wall of the shell is connected with a second collecting nozzle at the lower end of the second filter plate.
Preferably, the bottom end of the side wall of the shell is provided with a through hole, and the through hole is matched with the ash collecting box.
Preferably, a handle is installed on the side wall of the dust collecting box, and a rubber sleeve is sleeved outside the handle.
Preferably, a mounting bottom plate is fixed at the bottom end of the shell, and mounting holes are formed in the positions, close to corners, of the upper wall of the mounting bottom plate.
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the invention, the anti-rebound assembly is additionally arranged, after the scrap steel is added from the feeding hopper, the scrap steel contacts the baffle, after the baffle is pressed, the pressure sensor receives information, then the electric telescopic rod can be contracted to enable one end of the hinged baffle to move downwards, so that the scrap steel falls down, when the baffle is not pressed, the electric telescopic rod pushes one end of the baffle to move upwards, so that a feeding port of the feeding hopper can be blocked, the broken steel can be effectively prevented from popping out of the feeding port, the safety coefficient is high, and safety accidents are prevented.
(2) Aiming at the anti-rebound assembly, the sliding rod, the sliding ball and the second sliding groove are additionally arranged, when the electric telescopic rod drives one end of the baffle to move up and down, the sliding ball can move along the second sliding groove, the moving range of the baffle can be effectively enlarged, and the falling of waste steel to be crushed in different sizes is facilitated.
(3) According to the invention, the screening part is additionally arranged, after the scrap steel is crushed by the crushing assembly, the scrap steel firstly falls onto the first filter plate, the larger unqualified scrap steel is left on the first filter plate through the vibration of the first vibrator, the smaller scrap steel and dust can fall onto the second filter plate, then the dust on the second filter plate can fall into the dust collection box through the vibration of the second vibrator, the dust can be conveniently removed and unqualified crushed pieces can be conveniently removed by utilizing the screening part, manual separation is not needed, and time and labor are saved.
(4) The first filter plate and the second filter plate are obliquely fixed, so that scrap steel on the first filter plate and the second filter plate can slide down quickly by utilizing the component force of gravity, and blockage is avoided.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an external view of the present invention;
FIG. 3 is a top view of the feed hopper of the present invention;
FIG. 4 is a bottom view of the baffle of the present invention;
FIG. 5 is a cross-sectional view of a baffle of the present invention;
FIG. 6 is a front view of the electric telescopic handle of the present invention;
FIG. 7 is an enlarged view of portion A of FIG. 1;
FIG. 8 is an enlarged view of portion B of FIG. 3;
in the figure: 1-a shell; 2-a feed hopper; 3, fixing blocks; 4-a baffle plate; 5, an electric telescopic rod; 6-a material guide plate; 7-a crushing roller; 8-a first filter plate; 9-a first vibrator; 10-a second filter plate; 11-a second vibrator; 12-a through hole; 13-a rubber sleeve; 14-a grip; 15-a slide block; 16-a first runner; 17-a dust collecting box; 18-a first collection nozzle; 19-a second collection nozzle; 20-installing a bottom plate; 21-a connecting rod; 22-a second chute; 23-a slide bar; 24-a sliding ball; 25-pressure sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-8, the present invention provides the following technical solutions: the utility model provides a scrap steel breaker of dust removal, which comprises a housin 1, broken subassembly, prevent subassembly and the dust removal subassembly of kick-backing, the top of casing 1 is equipped with feeder hopper 2, broken unit mount is in casing 1, and broken subassembly is used for carrying out the breakage to the scrap steel, prevent that the subassembly that kick-backs is located broken subassembly's top, and prevent that the subassembly that kick-backs includes sheltering from part and drive division, shelter from the part and prevent that the scrap steel from popping out from feeder hopper 2 when broken subassembly breakage scrap steel, drive division is used for the drive to shelter from partial removal, in order to realize changing feeder hopper 2 in feed port's size, the dust removal subassembly includes screening part and collection part, screening part is used for separately with not unidimensional broken finished product and dust, collection part is used for collecting the dust after the screening of screening part.
Further, the shielding parts are provided with two groups, each group of shielding parts comprises a baffle 4, a connecting rod 21 and two fixed blocks 3, the two fixed blocks 3 are symmetrically fixed on the front side and the rear side of the inner wall of the feed hopper 2, the connecting rod 21 is connected between the two fixed blocks 3, the baffle 4 is rotatably installed outside the connecting rod 21, the driving part comprises an electric telescopic rod 5, a second chute 22, a sliding rod 23, a sliding ball 24 and a pressure sensor 25, the electric telescopic rod 5 is installed on the inner side wall of the feed hopper 2, the sliding rod 23 is fixed at the output end part of the electric telescopic rod 5, the sliding ball 24 is fixed at the outer end part of the sliding rod 23, the second chute 22 is arranged on the lower surface wall of the baffle 4, the pressure sensor 25 is installed inside the baffle 4, the PLC is installed on the outer wall of the shell 1, the electric telescopic rod 5 and the pressure sensor 25 are both electrically connected with the PLC, after waste steel is added from the feed hopper 2, scrap steel contact baffle 4, baffle 4 pressurized back, pressure sensor 25 receives pressure and gives the PLC controller with information transfer, the PLC controller can start the instruction immediately and give electric telescopic handle 5, electric telescopic handle 5 collapsible messenger articulated baffle 4 one end moves down, thereby make the scrap steel fall down, when baffle 4 is not pressurized, the PLC controller also can control electric telescopic handle 5 one end that promotes baffle 4 immediately and shift up, thereby can block the feed port of feeder hopper 2, can effectively avoid broken steel to pop out from the charge door, factor of safety is high, prevent to cause the incident, wherein, when the one end of electric telescopic handle 5 drive baffle 4 reciprocates, smooth ball 24 can move along second spout 22, can effectively increase baffle 4's moving range, do benefit to the not fall of the broken scrap steel of equidimension.
Furthermore, the screening part comprises a first filter plate 8 and a second filter plate 10 which are obliquely arranged inside the shell 1 and are positioned below the crushing component, the second filter plate 10 is positioned below the first filter plate 8, a first vibrator 9 is arranged at one end of the lower surface wall of the first filter plate 8, a second vibrator 11 is arranged at one end of the lower surface wall of the second filter plate 10, the aperture of the first filter plate 8 is larger than that of the second filter plate 10, the collecting part comprises an ash collecting box 17 which is positioned at the bottom inside the shell 1 in a sliding manner, an ash guiding inclined plane is arranged on the upper surface wall of the ash collecting box 17, slide blocks 15 are symmetrically fixed at the bottom end of the ash collecting box 17, a first sliding groove 16 matched with the slide blocks 15 is formed in the bottom inside the shell 1, after the scrap steel is crushed by the crushing component, the scrap steel firstly falls onto the first filter plate 8, and the larger and unqualified scrap steel is left on the first filter plate 8 by the vibration of the first vibrator 9, the less scrap steel and the dust in broken back can fall to second filter 10 on, then via the vibrations of second vibrator 11, the dust on the second filter 10 can fall to the collection ash case 17 in, utilize the rejection of getting rid of and the unqualified broken piece that this screening part can be convenient for of dust, need not artifical manual separation, comparatively labour saving and time saving, in addition, utilize the slip of slider 15 in first spout 16, the quick installation and the taking out of collection ash case 17 of being convenient for.
Further, the electric telescopic rod 5 is obliquely installed, the sliding balls 24 are matched with the second sliding grooves 22, the number of the second sliding grooves 22 in the lower surface wall of each baffle 4 is two, the electric telescopic rod 5, the sliding rods 23 and the sliding balls 24 are the same as the number of the second sliding grooves 22, and the arrangement of the plurality of groups of electric telescopic rods 5 and the like is convenient for ensuring the stability of the support of the baffles 4.
Further, broken subassembly is installed in the inside upper end of casing 1, and broken subassembly is two crushing rollers 7 that are connected through the motor, and two crushing rollers 7 wait high setting, utilize two crushing rollers 7 of pivoted to carry out the breakage of steel scrap, convenient and fast.
Furthermore, guide plates 6 are symmetrically fixed on two sides of the top end inside the shell 1, the guide plates 6 are obliquely fixed, and the added guide plates 6 can guide the scrap steel to a position between the two crushing rollers 7 for crushing.
Further, the side wall of the shell 1 is connected with a first collecting nozzle 18 at the lower end of the first filter plate 8, the side wall of the shell 1 is connected with a second collecting nozzle 19 at the lower end of the second filter plate 10, and the waste steel with different sizes after being screened can be discharged and collected from the first collecting nozzle 18 and the second collecting nozzle 19 respectively, so that convenience is achieved.
Further, the bottom end of the side wall of the shell 1 is provided with a through hole 12, the through hole 12 is matched with the dust collection box 17, and the through hole 12 is used for the dust collection box 17 to pass through.
Furthermore, a handle 14 is installed on the side wall of the dust collecting box 17, a rubber sleeve 13 is sleeved outside the handle 14, and the handle 14 is used for pushing and pulling the dust collecting box 17, so that the hand force application is facilitated, and the dust collecting box is convenient and practical.
Further, a mounting bottom plate 20 is fixed at the bottom end of the casing 1, a mounting hole is formed in the position, close to the corner, of the upper wall of the mounting bottom plate 20, the mounting bottom plate 20 can be stably fixed by the aid of the formed mounting hole, and the crusher can be further fixedly mounted.
The working principle and the using process of the invention are as follows: when the invention is used, firstly, the scrap steel to be crushed is added from a feed hopper 2, after the scrap steel is added from the feed hopper 2, the scrap steel firstly falls on a baffle 4, after the baffle 4 is pressed, a pressure sensor 25 receives the pressure and transmits information to a PLC controller, the PLC controller can immediately start an instruction to an electric telescopic rod 5, the electric telescopic rod 5 can be contracted to enable one end of the hinged baffle 4 to move downwards so as to enable the scrap steel to fall down, when the baffle 4 is not pressed, the PLC controller can also immediately control the electric telescopic rod 5 to push one end of the baffle 4 to move upwards so as to block a feeding port of the feed hopper 2, the crushed steel can be effectively prevented from popping out of a feeding port, the safety coefficient is high, and safety accidents are prevented, wherein when the electric telescopic rod 5 drives one end of the baffle 4 to move upwards and downwards, a sliding ball 24 at the top end of a sliding rod 23 can move along a second sliding chute 22, so that the moving range of the baffle 4 can be effectively increased, do benefit to not equidimension and treat dropping of broken steel scrap, the steel scrap is through broken subassembly breakage back, the steel scrap falls on first filter 8 earlier, vibrations through first vibrator 9, great unqualified steel scrap is stayed on first filter 8, less steel scrap and dust can fall on second filter 10 after the breakage, then via the vibrations of second vibrator 11, dust on the second filter 10 can fall in dust collecting box 17, utilize the getting rid of the dust and the rejection of unqualified broken piece of can being convenient for of this screening part, need not artifical manual separation, time and labor saving comparatively, in addition, the different size steel scrap after the screening can be respectively from first collection mouth 18 and the collection of 19 discharge of second collection mouth, comparatively convenient, in addition, utilize the slip of slider 15 in first spout 16, the quick installation and the taking out of dust collecting box 17 of being convenient for.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A scrap crusher of dust removal, characterized by comprising:
the device comprises a shell (1), wherein a feed hopper (2) is arranged at the top end of the shell (1);
the crushing assembly is arranged in the shell (1) and is used for crushing the scrap steel;
the anti-rebound assembly is positioned above the crushing assembly and comprises a shielding part and a driving part, the shielding part is used for preventing the scrap steel from popping out of the feed hopper (2) when the crushing assembly crushes the scrap steel, and the driving part is used for driving the shielding part to move so as to change the size of a feed port in the feed hopper (2);
the dust removing assembly comprises a screening part and a collecting part, the screening part is used for separating the crushed finished products with different sizes from dust, and the collecting part is used for collecting the dust screened by the screening part.
2. A dust-removing scrap crusher in accordance with claim 1, wherein: the shielding parts are provided with two groups, each group of shielding parts comprises a baffle (4), a connecting rod (21) and two fixing blocks (3), the two fixing blocks (3) are symmetrically fixed on the front side and the rear side of the inner wall of the feeding hopper (2), the connecting rod (21) is connected between the two fixing blocks (3), and the baffles (4) are rotatably arranged outside the connecting rods (21);
the driving part comprises an electric telescopic rod (5), a second sliding chute (22), a sliding rod (23), a sliding ball (24) and a pressure sensor (25), the electric telescopic rod (5) is installed on the inner side wall of the feeding hopper (2), the sliding rod (23) is fixed at the output end part of the electric telescopic rod (5), the sliding ball (24) is fixed at the outer end part of the sliding rod (23), the second sliding chute (22) is formed in the lower surface wall of the baffle (4), and the pressure sensor (25) is installed inside the baffle (4).
3. A dust-removing scrap crusher in accordance with claim 1, wherein: the screening part comprises a first filter plate (8) and a second filter plate (10) which are obliquely arranged in the shell (1) and positioned below the crushing assembly, the second filter plate (10) is positioned below the first filter plate (8), a first vibrator (9) is arranged at one end of the lower surface wall of the first filter plate (8), a second vibrator (11) is arranged at one end of the lower surface wall of the second filter plate (10), and the aperture of the first filter plate (8) is larger than that of the second filter plate (10);
the collection part is including being located ash collection box (17) of sliding connection in the inside bottom of casing (1), the last wall of ash collection box (17) is equipped with leads grey inclined plane, and the bottom symmetry of ash collection box (17) is fixed with slider (15), first spout (16) with slider (15) assorted are seted up to the inside bottom of casing (1).
4. A dust-removing scrap crusher in accordance with claim 2, wherein: the electric telescopic rod (5) is obliquely installed, the sliding balls (24) are matched with the second sliding grooves (22), two sliding grooves (22) are formed in the lower surface wall of each baffle (4), and the number of the electric telescopic rod (5), the number of the sliding rods (23) and the number of the sliding balls (24) are the same as that of the second sliding grooves (22).
5. A dust-removing scrap crusher in accordance with claim 1, wherein: the crushing assembly is arranged at the upper end of the inside of the shell (1), the crushing assembly is two crushing rollers (7) connected through a motor, and the crushing rollers (7) are arranged at equal heights.
6. A dust-removing scrap crusher in accordance with claim 1, wherein: the material guide plates (6) are symmetrically fixed on two sides of the top end inside the shell (1), and the material guide plates (6) are obliquely fixed.
7. A dust-removing scrap crusher in accordance with claim 3, wherein: the side wall of the shell (1) is connected with a first collecting nozzle (18) at the lower end of the first filter plate (8), and the side wall of the shell (1) is connected with a second collecting nozzle (19) at the lower end of the second filter plate (10).
8. A dust-removing scrap crusher in accordance with claim 3, wherein: through-hole (12) have been seted up to the lateral wall bottom of casing (1), through-hole (12) and dust collection box (17) looks adaptation.
9. A dust-removing scrap crusher in accordance with claim 3, wherein: a handle (14) is installed on the side wall of the dust collection box (17), and a rubber sleeve (13) is sleeved outside the handle (14).
10. A dust-removing scrap crusher in accordance with claim 1, wherein: the bottom end of the shell (1) is fixed with a mounting bottom plate (20), and mounting holes are formed in the positions, close to corners, of the upper wall of the mounting bottom plate (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110715877.9A CN113441218A (en) | 2021-06-25 | 2021-06-25 | Scrap steel breaker that removes dust |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110715877.9A CN113441218A (en) | 2021-06-25 | 2021-06-25 | Scrap steel breaker that removes dust |
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| CN113441218A true CN113441218A (en) | 2021-09-28 |
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| CN202110715877.9A Pending CN113441218A (en) | 2021-06-25 | 2021-06-25 | Scrap steel breaker that removes dust |
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| CN114152071A (en) * | 2021-11-30 | 2022-03-08 | 长春医学高等专科学校 | Drying equipment for food dehydration process |
| CN115805127A (en) * | 2023-02-08 | 2023-03-17 | 泉州市岁月如梭科技有限公司 | Prevent material crusher of raise dust |
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| CN212492631U (en) * | 2020-05-22 | 2021-02-09 | 河南科斗新材料研究院有限公司 | Proportioning equipment for preparing water-soluble titanium dioxide nanoparticles |
| CN213287210U (en) * | 2020-08-18 | 2021-05-28 | 开化诚信树脂有限公司 | Reducing mechanism is used in rosin resin production |
| CN112499308A (en) * | 2020-11-09 | 2021-03-16 | 枣庄鑫金山智能装备有限公司 | Environment-friendly dust removal type sand making machine |
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| CN115805127A (en) * | 2023-02-08 | 2023-03-17 | 泉州市岁月如梭科技有限公司 | Prevent material crusher of raise dust |
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Application publication date: 20210928 |