CN115739627B - Slag micropowder screening device and screening process thereof - Google Patents
Slag micropowder screening device and screening process thereof Download PDFInfo
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- CN115739627B CN115739627B CN202211428476.6A CN202211428476A CN115739627B CN 115739627 B CN115739627 B CN 115739627B CN 202211428476 A CN202211428476 A CN 202211428476A CN 115739627 B CN115739627 B CN 115739627B
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Abstract
The invention relates to the technical field of airflow screening machines and discloses a slag micropowder screening device and a screening process thereof, wherein the slag micropowder screening device comprises a shell, a screen drum and wind wheel blades, a plurality of groups of shells are arranged on the inner wall of the shell, a first spring and a first permanent magnet are arranged in the shells, a mounting groove is formed in the wind wheel blades, a limiting ring, a second permanent magnet and a second spring are arranged in the mounting groove, a connecting rod and a wedge block are fixedly connected onto the second permanent magnet, the wind wheel blades are provided with concave structures, sliding grooves are formed in two sides of the mounting groove, a limiting block, a cutting rod and a third spring are arranged in the sliding grooves, and a plurality of groups of convex screens are arranged on the inner wall of the screen drum in an annular array. According to the slag micropowder screening device and the screening process thereof, the screening cylinder is impacted by the repulsive force of the first permanent magnet and the second permanent magnet, the blocking matters in the screening holes are removed, and the purpose of crushing agglomerates is achieved by matching the concave structures of the cutting rods, the convex screen meshes and the wind wheel blades.
Description
Technical Field
The invention relates to the technical field of airflow screening machines, in particular to a slag micropowder screening device and a screening process thereof.
Background
The slag powder is short for granulating blast furnace slag powder, is a high-quality concrete admixture, and is mixed into cement for use through the processes of drying, grinding, sieving and the like. In the process of screening after grinding slag powder, an airflow screening machine is mainly used at the present stage.
When the airflow screening machine works, objects to be screened are quickly introduced into the screen cylinder after being mixed with gas in the spiral conveying device, the objects to be screened are pushed to rotate in the screen cylinder through the wind wheel blades, and the objects to be screened quickly pass through the screen cylinder under the action of airflow and centrifugal force, so that the screening purpose is achieved. However, when the airflow screening machine screens micro powder particles, the screen holes in the screen cylinder are extremely small and are easily blocked by the large-hinged ore particles or sticky particles, so that the phenomenon of low screening efficiency occurs; in addition, the objects to be screened in the airflow screen are all extremely fine materials, the finer materials have larger surface areas, the tendency of mutual aggregation and agglomeration of fine particles is gradually enhanced, the dynamic balance phenomenon of grinding and agglomeration can occur, in the screening process of the airflow screen, the agglomerated objects to be screened are difficult to screen through a screen drum, and the phenomenon that part of qualified materials are discharged to cause low screening efficiency is caused.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior airflow screening machine in the use process, the invention provides a slag micropowder screening device and a screening process thereof, which have the advantages of preventing screen blockage and reducing the aggregation phenomenon of screened matters, and solve the technical problems in the prior art.
(II) technical scheme
The invention provides the following technical scheme: the utility model provides a slag miropowder screening plant and screening technology thereof, includes support, shell, screen drum, screw conveyor and wind turbine blade, shell fixed mounting is in the support upper end, fixed mounting has the screen drum in the shell, screw conveyor fixed mounting is in the axle center department of shell one end, fixed mounting has bracing piece and wind turbine blade on the screw conveyor, the equidistance is equipped with the casing that a plurality of group annular array set up on the inner wall of shell, fixed mounting has first spring in the casing, the top fixed mounting of first spring has first permanent magnet, first permanent magnet slidable mounting is in the casing, the mounting groove has been seted up to one side that the wind turbine blade hugged closely the screen drum, mounting groove and casing one-to-one, fixed mounting has the spacing ring in the mounting groove, slidable mounting has the second permanent magnet in the mounting groove, be equipped with the second spring between spacing ring and the second permanent magnet.
Preferably, a connecting rod is fixedly installed on the end face of the second permanent magnet in the installation groove, a wedge block is fixedly installed at the top end of the connecting rod, a concave structure is arranged between two adjacent installation grooves of the wind wheel blade, a sliding groove is formed in the side face of the installation groove, a limiting block is fixedly installed in the sliding groove, a cutting rod is slidably installed in the sliding groove, a third spring is movably sleeved on the cutting rod, a third permanent magnet is arranged at the head of the cutting rod, and the third permanent magnet is tightly attached to the wedge block.
Preferably, the side of wind turbine blade is equipped with concave structure, concave structure and the middle concave structure one-to-one of mounting groove, the inner wall annular array of screen cylinder is equipped with a set of convex screen cloth, the inner wall equidistance of screen cylinder is equipped with multiunit convex screen cloth, convex screen cloth and the middle concave structure looks adaptation of mounting groove.
Preferably, when not in operation, the first spring and the second spring are in a normal state, and the first permanent magnet and the second permanent magnet are not in contact with the screen cylinder.
Preferably, the end surfaces of the first permanent magnet and the second permanent magnet, which are close to the screen cylinder, are the same magnetic poles.
The sieving process of the slag micropowder sieving device comprises the following steps of:
s1, a wind wheel blade pushes an object to be screened to rotate in a screen drum, so that centrifugal force is obtained, when the wind wheel blade corresponds to the first permanent magnet, the first permanent magnet and the second permanent magnet generate repulsive force sliding, and when the wind wheel blade continues to rotate, the repulsive force between the first permanent magnet and the second permanent magnet disappears, the first permanent magnet and the second permanent magnet impact the screen drum, and plugs in screen holes in the screen drum are removed;
s2, repulsive force is generated between the first permanent magnet and the second permanent magnet, the connecting rod and the wedge block are pushed to slide, so that the cutting rod is pushed to collide with the aggregate to-be-screened objects, and the aggregate to-be-screened objects are crushed;
s3, shearing and grinding the agglomerated objects to be screened by the concave structure and the convex screen mesh in the middle of the installation groove in the process of rotating the wind wheel blades, and further crushing the agglomerated objects to be screened.
(III) beneficial effects
The invention has the following beneficial effects:
1. according to the invention, eight shells are annularly arranged on the inner wall of the shell in an array manner, the first springs and the first permanent magnets are arranged in the shells, a plurality of groups of shells, the first springs and the first permanent magnets are equidistantly arranged on the inner wall of the shell, the wind turbine blade is provided with a mounting groove, a limiting ring and a second spring are fixedly arranged in the mounting groove, and the second permanent magnets are slidably arranged in the mounting groove. When the airflow screening machine works, the spiral conveying device drives the pre-screening net to rotate, the pre-screening net drives the supporting rod and the wind wheel blade to rotate, when the wind wheel blade corresponds to the first permanent magnet, repulsive force is generated between the first permanent magnet and the second permanent magnet, the first permanent magnet compresses the first spring, the second permanent magnet compresses the second spring, the second permanent magnet is retracted into the mounting groove, when the wind wheel blade continues to rotate, the first permanent magnet and the second permanent magnet are far away, at the moment, the first permanent magnet and the second permanent magnet rebound under the action of the first spring and the second spring, so that the screen drum is impacted, the screen drum is vibrated, sticky particles in the screen holes are discharged through vibration, and the phenomenon that the screen holes are blocked is prevented.
2. According to the invention, the connecting rod is fixedly arranged at the top end of the second permanent magnet, the wedge-shaped block is fixedly connected to the top end of the connecting rod, the middle of two adjacent mounting grooves on the wind wheel blade is provided with the concave shape, two sides of each mounting groove are symmetrically provided with the sliding grooves, the limiting blocks are fixedly arranged in the sliding grooves, the third springs are arranged in the sliding grooves, the cutting rods are movably sleeved in the third springs, one ends of the cutting rods are tightly attached to the wedge-shaped block, and one ends of the cutting rods tightly attached to the wedge-shaped block are provided with the third permanent magnets. When the airflow screening machine works, repulsive force is generated between the first permanent magnet and the second permanent magnet at the bottommost end of the screen cylinder, and the second permanent magnet pushes the connecting rod and the wedge block to slide in the mounting groove, so that the wedge block pushes the cutting rod to slide in the sliding groove, the cutting rod extends to the concave position of the wind wheel blade, the rotating wind wheel blade drives the cutting rod to rotate, and therefore the agglomerated objects to be screened in the screen cylinder are subjected to impact cutting, and agglomerated particles are dispersed.
3. According to the invention, the side surface of the wind wheel blade is provided with the inner concave structures, the inner concave structures on the side surface are in one-to-one correspondence with the inner concave structures in the middle of the mounting groove, eight convex screen structures are annularly arranged on the screen drum in an array manner, a plurality of groups of convex screen structures are equidistantly arranged on the screen drum, and the convex screen structures are in position correspondence with the inner concave structures in the middle of the mounting groove. When the airflow screening machine works, the wind wheel blades push the belt screening materials to rotate, the agglomerated large-particle screening materials are concentrated at the concave structures on the side surfaces of the wind wheel blades, and when the agglomerated large-particle screening materials pass through the convex screen structures, the agglomerated large-particle screening materials are sheared and ground by the convex screen structures and the concave structures in the middle of the installation grooves, so that the agglomerated large-particle screening materials are crushed, the discharge amount of qualified materials is reduced, and the screening efficiency of the screen drum is increased.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an enlarged schematic view of a portion of the structure of FIG. 1A according to the present invention;
FIG. 3 is a cross-sectional view of the structure of FIG. 1 at B-B in accordance with the present invention;
FIG. 4 is an enlarged schematic view of a portion of the structure of FIG. 3 at C in accordance with the present invention;
FIG. 5 is a front view of a wind turbine blade according to the present invention;
FIG. 6 is a top view of a wind turbine blade according to the present invention;
FIG. 7 is a schematic view of a rotor blade according to the present invention rotated into a concave configuration of a screen
FIG. 8 is a schematic view showing a partial enlargement of the structure at D in FIG. 7 according to the present invention
Fig. 9 is an enlarged schematic view of a portion of the structure of fig. 8 at E in accordance with the present invention.
In the figure: 1. a bracket; 2. a housing; 201. a housing; 202. a first spring; 203. a first permanent magnet; 3. a feed inlet; 4. a screen drum; 401. a convex screen; 5. a driving motor; 6. a speed reducing device; 7. a screw conveyor; 701. pre-screening; 8. a support rod; 9. wind wheel blades; 901. a mounting groove; 902. a limiting ring; 903. a second permanent magnet; 904. a second spring; 905. a connecting rod; 906. wedge-shaped blocks; 907. a chute; 908. a limiting block; 909. a third spring; 910. cutting the rod; 10. a fine material outlet; 11. coarse material discharge gate.
Detailed Description
The following description of the embodiments of the present invention 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 invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, fig. 2, fig. 3 and fig. 4, a slag micropowder screening device comprises a bracket 1, a housing 2, a screen drum 4, a driving motor 5 and a screw conveyer 7, wherein the housing 2 is fixedly installed at the upper end of the bracket 1, a feed inlet 3 is fixedly installed at one side of the upper end of the housing 2, the screen drum 4 is fixedly installed in the housing 2, the screw conveyer 7 is fixedly installed at the center position of one end in the housing 2, the screw conveyer 7 is communicated with the feed inlet 3, a speed reducer 6 is fixedly installed at one end of the housing 2, a main shaft of the screw conveyer 7 is in transmission connection with a motor shaft of the driving motor 5 through the speed reducer 6, the main shaft of the screw conveyer 7 is fixedly connected with a pre-screening cloth 701, the pre-screening cloth 701 is sleeved inside the screen drum 4, supporting rods 8 are sleeved at two ends of the outer side of the pre-screening cloth 701, wind turbine blades 9 are fixedly installed at the top ends of the supporting rods 8, and fine material discharge ports 10 and coarse material discharge ports 11 are fixedly installed at the bottom ends of the housing 2.
Referring to fig. 1, fig. 2, fig. 3 and fig. 4, eight shells 201 are annularly arranged on the inner wall of the casing 2, a first permanent magnet 203 is fixedly mounted at the top end of the first spring 202 in a prescribed manner, the first permanent magnet 203 is slidably mounted in the shells 201, a plurality of groups of vibrating devices are equidistantly arranged on the inner wall of the casing 2, mounting grooves 901 are formed in one side, close to the screen drum 4, of the wind turbine blades 9, the mounting grooves 901 are in one-to-one correspondence with the shells 201, limiting rings 902 are fixedly mounted in the mounting grooves 901, second permanent magnets 903 are slidably mounted in the mounting grooves 901, second springs 904 are arranged between the limiting rings 902 and the second permanent magnets 903, and two ends of each second spring 904 are fixedly connected with the limiting rings 902 and the second permanent magnets 903 respectively.
Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, a vomiting connecting rod 905 is fixedly installed on the end face of a second permanent magnet 903 in a mounting groove 901, the connecting rod 905 is sleeved in a second spring 904, a wedge block 906 is fixedly installed at the top end of the connecting rod 905, a concave structure is arranged between two adjacent mounting grooves 901 of a wind turbine blade 9, a sliding groove 907 is formed in the side face of the mounting groove 901, the sliding groove 907 is communicated with the concave structure of the mounting groove 901 and the wind turbine blade 9, a limiting block 908 is fixedly installed in the sliding groove 907, a cutting rod 910 is slidably installed in the sliding groove 907, a third spring 909 is movably sleeved on the cutting rod 910, one end of the third spring 909 is fixedly connected to the limiting block 908, the other end of the third spring 909 is fixedly connected with the head of the cutting rod 910, the head of the cutting rod 910 is provided with a third permanent magnet, and the third permanent magnet is tightly attached to the wedge block 906.
Referring to fig. 1, 2, 3, 4, 5 and 6, the side surface of the wind turbine blade 9 is provided with concave structures, the concave structures are in one-to-one correspondence with the concave structures in the middle of the mounting groove 901, a group of convex screens 401 are annularly arranged on the inner wall of the screen drum 4 in an array manner, a plurality of groups of convex screens 401 are equidistantly arranged on the inner wall of the screen drum 4, and the convex screens 401 are matched with the concave structures in the middle of the mounting groove 901.
When not in operation, the first spring 202 and the second spring 904 are both in a normal state, and the first permanent magnet 203 and the second permanent magnet 903 are not in contact with the screen cylinder 4. The first permanent magnet 203, the second permanent magnet 903 and the screen cylinder 4 are easily damaged by preventing the first permanent magnet 203 and the second permanent magnet 903 from being excessively worn out when contacting the screen cylinder 4.
The end surfaces of the first permanent magnet 203 and the second permanent magnet 903 close to the screen cylinder 4 are the same magnetic poles. A repulsive force is ensured to be generated between the first permanent magnet 203 and the second permanent magnet 903.
The concave structure in the middle of the mounting groove 901 is not in contact with the convex screen 401 of the screen cylinder 4. And the shearing force to which the agglomerates to be screened are subjected is increased, and the crushing of the agglomerates to be screened is enhanced.
The application method (working principle) of the invention is as follows:
referring to fig. 1, 2, 3 and 4, when the airflow screening machine works, the objects to be screened are transferred into the screen drum 4 through the rotation of the spiral conveying device 7, the pre-screening net 701 is driven to rotate while the spiral conveying device 7 rotates, the pre-screening net 701 drives the supporting rod 8 and the wind wheel blade 9 to rotate, when the wind wheel blade 9 rotates to a position corresponding to the first permanent magnet 203, repulsive force is generated between the first permanent magnet 203 and the second permanent magnet 903, the first permanent magnet 203 and the second permanent magnet 903 compress the first spring 202 and the second spring 904, the first permanent magnet 203 slides into the shell 201, the second spring 904 slides into the mounting groove 901, after the wind wheel blade 9 continues to rotate, the first permanent magnet 203 and the second permanent magnet 903 are far away, at this time, under the action of the first spring 202 and the second spring 904, the first permanent magnet 203 and the second permanent magnet 903 rebound, the wind wheel blade 903 impacts the screen drum 4, mineral vibration adhered to the screen holes in the screen drum 4 falls down, or large particles vibrate down, and blocking the screen drum 4 is avoided.
When the first permanent magnet 203 and the second permanent magnet 903 generate repulsive force, the second permanent magnet 903 slides into the mounting groove 901, the mounting groove 901 drives the connecting rod 905 and the wedge block 906 to slide, and the wedge block 906 pushes the cutting rod 910 to slide in the sliding groove 907, so that the cutting rod 910 extends out of the sliding groove 907, and when the wind wheel blade 9 rotates, the objects to be screened which generate agglomeration phenomenon are impacted and cut by the cutting rod 910, so that the objects to be screened are agglomerated and dispersed, the discharge of qualified materials is reduced, and the screening efficiency is improved.
When the wind wheel blades 9 push the belt screened objects, the agglomerated belt screened objects are concentrated in the concave structures on the side surfaces of the wind wheel blades 9, and when the agglomerated objects to be screened pass through the middle of two adjacent convex screens 401, the agglomerated belt screened objects are sheared and ground by the concave structures in the middle of the installation groove 901 and the convex screens 401, so that the agglomerated large-particle objects to be screened are crushed, the discharge amount of qualified materials is further reduced, and the screening efficiency of the screen drum 4 is increased.
The screening process comprises the following steps:
s1, opening a switch, and throwing the screened material from a feed inlet 3;
s2, conveying the objects to be screened into a pre-screening net 701 through a spiral conveying device 7, and enabling the qualified objects to be screened to enter a screen drum 4 after passing through the pre-screening net 701 and screening;
s3, the wind turbine blade 9 pushes the objects to be screened to rotate in the screen drum 4, so that centrifugal force is obtained, when the wind turbine blade 9 corresponds to the first permanent magnet 203 in position, the first permanent magnet 203 and the second permanent magnet 903 generate repulsive force sliding, when the wind turbine blade 9 continues to rotate, the repulsive force between the first permanent magnet 203 and the second permanent magnet 903 disappears, the first permanent magnet 203 and the second permanent magnet 903 impact the screen drum 4, and plugs in screen holes in the screen drum 4 are removed;
s4, repulsive force is generated between the first permanent magnet 203 and the second permanent magnet 903, so that the second permanent magnet 903, the connecting rod 905 and the wedge block 906 are pushed to slide, and the cutting rod 910 is pushed to impact the aggregate to-be-screened objects, so that the aggregate to-be-screened objects are crushed;
s5, in the process of rotating the wind turbine blades 9, shearing and grinding the agglomerated objects to be screened by the concave structure and the convex screen 401 in the middle of the installation groove 901, and further crushing the agglomerated objects to be screened;
s6, screening by the screen cylinder 4, discharging qualified materials from the screen holes of the screen cylinder 4, entering the fine material discharge port 10, and discharging unqualified materials from the port of the screen cylinder 4 into the coarse material discharge port 11.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a slag miropowder screening plant, includes support (1), shell (2), screen drum (4), screw conveyor (7) and wind vane blade (9), shell (2) fixed mounting is in support (1) upper end, fixed mounting has screen drum (4) in shell (2), screw conveyor (7) fixed mounting is in the axle center department of shell (2) one end, fixed mounting has bracing piece (8) and wind vane blade (9) on screw conveyor (7), its characterized in that: the novel wind wheel is characterized in that a plurality of groups of annular array arranged shells (201) are equidistantly arranged on the inner wall of the shell (2), first springs (202) are fixedly arranged in the shells (201), first permanent magnets (203) are fixedly arranged at the top ends of the first springs (202), the first permanent magnets (203) are slidably arranged in the shells (201), mounting grooves (901) are formed in one side, close to the screen drum (4), of each wind wheel blade (9), the mounting grooves (901) are in one-to-one correspondence with the shells (201), limiting rings (902) are fixedly arranged in the mounting grooves (901), second permanent magnets (903) are slidably arranged in the mounting grooves (901), and second springs (904) are arranged between the limiting rings (902) and the second permanent magnets (903);
connecting rod (905) is fixedly mounted on the end face of second permanent magnet (903) in mounting groove (901), wedge (906) is fixedly mounted on the top end of connecting rod (905), establish to concave structure in the middle of two adjacent mounting grooves (901) of wind turbine blade (9), spout (907) has been seted up to the side of mounting groove (901), fixed mounting has stopper (908) in spout (907), slidable mounting has cutting rod (910) in spout (907), movable sleeve is equipped with third spring (909) on cutting rod (910), the head of cutting rod (910) is established to third permanent magnet, third permanent magnet is hugged closely with wedge (906).
2. A slag micropowder screening apparatus according to claim 1, characterized in that: the side of wind turbine blade (9) is equipped with concave structure, concave structure and the concave structure in the middle of mounting groove (901) one-to-one, annular array is equipped with a set of convex screen cloth (401) on the inner wall of screen drum (4), the inner wall equidistance of screen drum (4) is equipped with multiunit convex screen cloth (401), concave structure looks adaptation in the middle of convex screen cloth (401) and mounting groove (901).
3. A slag micropowder screening apparatus according to claim 1, characterized in that: when not in operation, the first spring (202) and the second spring (904) are in a normal state, and the first permanent magnet (203) and the second permanent magnet (903) are not in contact with the screen cylinder (4).
4. A slag micropowder screening apparatus according to claim 1, characterized in that: the end faces of the first permanent magnet (203) and the second permanent magnet (903) close to the screen cylinder (4) are the same magnetic poles.
5. A process for sieving a slag powder sieving apparatus as claimed in claim 2, wherein the sieving operation comprises the steps of:
s1, pushing an object to be screened to rotate in a screen drum (4) by a wind wheel blade (9), so as to obtain centrifugal force, when the wind wheel blade (9) corresponds to the first permanent magnet (203), the first permanent magnet (203) and the second permanent magnet (903) generate repulsive force to slide, when the wind wheel blade (9) continues to rotate, repulsive force between the first permanent magnet (203) and the second permanent magnet (903) disappears, the first permanent magnet (203) and the second permanent magnet (903) impact the screen drum (4), and blockage in screen holes in the screen drum (4) is removed;
s2, repulsive force is generated between the first permanent magnet (203) and the second permanent magnet (903), the connecting rod (905) and the wedge block (906) are pushed to slide, so that the cutting rod (910) is pushed to impact the aggregate to-be-screened objects, and the aggregate to-be-screened objects are crushed;
s3, in the rotating process of the wind wheel blades (9), the concave structure and the convex screen (401) in the middle of the mounting groove (901) shear and grind the agglomerated objects to be screened, and further the agglomerated objects to be screened are crushed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211428476.6A CN115739627B (en) | 2022-11-15 | 2022-11-15 | Slag micropowder screening device and screening process thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211428476.6A CN115739627B (en) | 2022-11-15 | 2022-11-15 | Slag micropowder screening device and screening process thereof |
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| CN115739627A CN115739627A (en) | 2023-03-07 |
| CN115739627B true CN115739627B (en) | 2023-09-08 |
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| CN117583229A (en) * | 2024-01-18 | 2024-02-23 | 江苏阳鑫环保科技有限公司 | Screening plant of slag waste material preparation iron bean |
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| WO2018072217A1 (en) * | 2016-10-18 | 2018-04-26 | 朱林 | Ore screening device for mining |
| CN207507822U (en) * | 2017-09-28 | 2018-06-19 | 晋城天成化工有限公司 | A kind of Horizontal gas flow screening machine |
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| CN212284869U (en) * | 2020-05-22 | 2021-01-05 | 青岛洪亭制粉有限公司 | Structure that wheat milling was used was beaten before wheat bran and was sieved |
| CN215465921U (en) * | 2021-04-06 | 2022-01-11 | 维博尔振动技术(上海)有限公司 | Mining slay miropowder screening plant |
| CN113941493A (en) * | 2021-11-17 | 2022-01-18 | 卓莉 | Drum screen capable of efficiently screening |
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2022
- 2022-11-15 CN CN202211428476.6A patent/CN115739627B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018072217A1 (en) * | 2016-10-18 | 2018-04-26 | 朱林 | Ore screening device for mining |
| CN207507822U (en) * | 2017-09-28 | 2018-06-19 | 晋城天成化工有限公司 | A kind of Horizontal gas flow screening machine |
| CN209772681U (en) * | 2019-01-02 | 2019-12-13 | 四会市国耀铝业有限公司 | Aluminum skimming vibration screening machine |
| CN212284869U (en) * | 2020-05-22 | 2021-01-05 | 青岛洪亭制粉有限公司 | Structure that wheat milling was used was beaten before wheat bran and was sieved |
| CN215465921U (en) * | 2021-04-06 | 2022-01-11 | 维博尔振动技术(上海)有限公司 | Mining slay miropowder screening plant |
| CN113941493A (en) * | 2021-11-17 | 2022-01-18 | 卓莉 | Drum screen capable of efficiently screening |
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| CN115739627A (en) | 2023-03-07 |
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