A powder separator

Abstract

This invention discloses a powder separator, characterized by comprising a shell, a collection box, a filter assembly, a support assembly, a negative pressure mechanism, and a striking mechanism; the collection box and the shell are connected; the support assembly is disposed inside the shell, and the filter assembly is movably disposed on the support assembly; the negative pressure mechanism and the striking mechanism are rotatably disposed on the shell; after the filter assembly descends, the rotation of the negative pressure mechanism drives the striking mechanism to rotate, causing the striking mechanism to intermittently strike the filter assembly. The aforementioned powder separator can automatically clean the area around the filter screen after coal powder has clogged it to a certain extent.

Description

Technical Field

[0001] This invention belongs to the field of coal preparation technology, specifically, it relates to a powder separator. Background Technology

[0002] In many industrial sectors such as energy, metallurgy, and chemicals, pulverized coal serves as an important fuel and raw material with extremely wide applications. The particle size requirements for pulverized coal vary significantly depending on the application: for example, in thermal power generation, to ensure complete combustion of pulverized coal in the boiler, improve thermal efficiency, and reduce pollutant emissions, finely sized and uniformly distributed pulverized coal is typically required; while in coal chemical engineering, some processes have specific particle size requirements to ensure reaction stability and product purity, and excessively fine or coarse pulverized coal can negatively impact process performance. To meet the particle size requirements in the aforementioned different scenarios, the industry commonly uses powder separators to screen and classify coal powder produced from ground coal lumps. However, in actual production applications, the filter structure of existing powder separators has significant defects, namely, the problem of coal powder clogging the filter screen is very likely to occur. Specifically, on the one hand, coal powder itself has a certain degree of viscosity, especially in working conditions with slightly higher humidity, where coal powder particles easily adsorb each other and adhere to the filter screen pore walls; on the other hand, although some fine coal powder particles can theoretically pass through the filter screen pores, under the action of airflow disturbance or vibration, they are prone to accumulate at the filter screen pore openings. As the separation operation continues, the accumulated coal powder will gradually clog the filter screen pores. Filter clogging directly leads to a significant decrease in the screening efficiency of powder separators. Firstly, clogged filter pores prevent coal powder meeting particle size requirements from passing smoothly, necessitating increased airflow pressure or vibration intensity to maintain separation. This not only increases energy consumption but may also cause some fine particles that should pass through to be trapped, reducing screening accuracy. Secondly, to resolve clogging, operators must frequently stop the machine to clean or replace the filter, interrupting continuous production, increasing labor costs, and shortening the filter's lifespan due to frequent disassembly and installation, further increasing operating costs. In summary, the low screening efficiency, high maintenance costs, and unstable screening accuracy caused by filter clogging in existing powder separators have become a key bottleneck restricting efficient production in the coal powder processing industry, urgently requiring the development of a new type of powder separator that can effectively solve the filter clogging problem. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the purpose of this invention is to provide a powder separator to solve the technical problem mentioned in the background art that the filter screen is easily clogged during the coal powder preparation process, which affects the coal preparation efficiency.

[0004] To achieve the aforementioned objectives, the technical solution adopted by this invention includes: A powder separator includes a shell, a collection box, a filter assembly, a support assembly, a negative pressure mechanism, and a striking mechanism; The collection box and the housing are connected; The support assembly is disposed within the housing, and the filter assembly is movably disposed on the support assembly; The negative pressure mechanism and the tapping mechanism are rotatably mounted on the housing. After the filter assembly is lowered, the rotation of the negative pressure mechanism can drive the tapping mechanism to rotate, causing the tapping mechanism to intermittently tap the filter assembly.

[0005] Furthermore, the support assembly includes a fixed plate, a return spring, and a proximity switch; the fixed plate is fixed inside the housing, the filter assembly is placed on the fixed plate, a plurality of return springs are provided between the filter assembly and the fixed plate, the proximity switch is located on the fixed plate, the descent of the filter assembly can trigger the proximity switch, and the triggering of the proximity switch can cause the rotation of the negative pressure mechanism to drive the rotation and striking of the striking mechanism.

[0006] Furthermore, the filter assembly includes a support plate, a filter screen, and a filter elastic rope; the support plate is placed on the fixed plate, the filter screen is vertically mounted on the support plate, and is connected to the support plate via the filter elastic rope.

[0007] Furthermore, the negative pressure mechanism includes a driving component, a negative pressure component, a driven component, a telescopic component, and a wedge; the negative pressure component is rotatably connected to the housing, the driving component is located inside the housing and can drive the negative pressure component to rotate; the driven component is telescopically mounted on the negative pressure component, and when the driven component extends, the rotation of the negative pressure component can drive the striking mechanism to rotate and strike; the telescopic component is located on the housing, and the telescopic end of the telescopic component is provided with the wedge; the descent of the filter component can drive the telescopic component to extend, and through the wedge, drive the driven component to extend.

[0008] Furthermore, the negative pressure assembly includes a rotating tube, a negative pressure gear ring, and negative pressure blades; the rotating tube is rotatably connected to the housing, the negative pressure gear ring is coaxially fixed on the rotating tube, and the driving assembly can drive the negative pressure gear ring to rotate; multiple negative pressure blades are provided and are arranged around the rotating tube.

[0009] Furthermore, the drive assembly includes a drive motor and a drive gear; the drive motor is disposed inside the housing, and the drive gear is coaxially fixed on the output shaft of the drive motor and can drive the negative pressure assembly to rotate.

[0010] Furthermore, the driven component includes a sliding wheel tooth, a first elastic rope, a push rod, and a second elastic rope; the sliding wheel tooth is slidably mounted on the rotating tube and connected to the rotating tube via the first elastic rope, and the sliding wheel tooth can drive the striking mechanism to rotate; the push rod is slidably mounted on the rotating tube and connected to the rotating tube via the second elastic rope, and the push rod can drive the striking mechanism to strike the filter component; the extension of the telescopic member can slide outward through the sliding wheel tooth and the push rod in the wedge chamber.

[0011] Furthermore, the striking mechanism includes a first connecting rod, a rotating gear ring, a second connecting rod, a driven gear, and a striking assembly; the top end of the first connecting rod is fixed inside the housing, and the other end of the first connecting rod is connected to the rotatable rotating gear ring; the driven gear is rotatably disposed inside the housing via the second connecting rod, the driven gear meshes with the rotating gear ring, and can mesh with the negative pressure mechanism; the striking assembly is telescopically disposed on the rotating gear ring, and the rotation of the negative pressure mechanism can drive the striking assembly to extend.

[0012] Furthermore, the striking assembly includes a connecting plate, a sliding rod, a striking spring, a push plate, and a striking rod; the connecting plate is fixed to the rotating gear ring, the sliding rod is slidably connected to the connecting plate, and connected to the connecting plate through the striking spring; the push plate and the striking rod are respectively fixed on the sliding rod, and the rotation of the negative pressure mechanism can drive the striking rod to move towards the filter assembly by squeezing the push plate.

[0013] Furthermore, the telescopic component can retract after a delay.

[0014] Compared with the prior art, the advantages of the present invention include: In this application, before the knocking ends or before blockage occurs, the filter assembly is in the un-descended position. The rotation of the negative pressure mechanism only generates negative pressure to attract coal dust, without driving the knocking mechanism to rotate or knock the filter assembly. After a certain amount of coal dust accumulates and clogs the filter screen, the filter assembly will descend. Once descended, the rotation of the negative pressure mechanism will drive the knocking mechanism to rotate circumferentially, knocking the filter assembly circumferentially. That is, in this application, when coal dust clogs the filter assembly to a certain extent and affects coal dust separation, the knocking mechanism is activated to knock the filter assembly circumferentially, thereby preventing the coal dust separation efficiency from being too slow. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is an overall schematic diagram of a powder separator according to the present invention; Figure 2 This is a cross-sectional schematic diagram of the present invention; Figure 3 This is an enlarged schematic diagram of part A in this invention; Figure 4 This is a partial cross-sectional view of the present invention.

[0017] Figure label: 1. Housing; 2. Collection box; 3. Filter assembly; 3. Support plate; 31. Filter screen; 32. Filter elastic rope; 33. Support assembly; 4. Fixing plate; 41. Return spring; 42. Proximity switch; 43. Negative pressure mechanism; 5. Drive assembly; 51. Drive motor; 511. Drive gear; 512. Negative pressure assembly; 52. Rotating tube; 521. Negative pressure gear ring; 522. Negative pressure blade; 523. Driven assembly; 53. Sliding wheel tooth; 531. First elastic rope; 532. Push rod; 533. Second elastic rope; 534. Telescopic component; 54. Wedge block; 55. Striking mechanism; 6. First connecting rod; 61. Rotating gear ring; 62. Second connecting rod; 63. Driven gear; 64. Striking assembly; 65. Connecting plate; 651. Sliding rod; 652. Striking spring; 653. Push plate; 654. Striking rod; 655. Detailed Implementation

[0018] In view of the shortcomings of the prior art, the inventors of this invention, through long-term research and extensive practice, have proposed the technical solution of this invention. The technical solution, its implementation process, and principles will be further explained below with reference to the accompanying drawings and specific implementation examples in the embodiments of this application.

[0019] It should be noted that the embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. The described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, the present invention covers any substitutions, modifications, equivalent methods and solutions made on the spirit, principles and scope of the present invention as defined by the claims. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] In the description of this application, the terms "first," "second," "third," and similar words do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "a" or "one," and similar words, do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including," and similar words, mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including," and their equivalents, but do not exclude other elements or objects. The terms "connected" or "linked," and similar words, are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0021] In the description of this application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this application and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, when using positional terms such as "both sides," "outer side," and "upper and lower," it should be understood that they are used only for ease of understanding and description, taking into account that the structure may be oriented to other positions.

[0022] In the description of this application, unless otherwise expressly specified and limited, the technical or scientific terms used shall have the ordinary meaning understood by a person with ordinary skills in the art to which this application pertains. Terms such as “installation,” “connection,” and “joining” shall be interpreted broadly, for example, as fixed connection, detachable connection, mating connection, or integral connection. For a person skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0023] The present invention aims to introduce and explain the structural composition of a powder separator and the matching relationship between the various components. Unless otherwise specified, the dimensions, materials and manufacturing processes of the various components in the powder separator in the present invention can be selected according to specific circumstances, and no special limitations or explanations are made here.

[0024] Furthermore, to provide the public with a better understanding of the present invention, certain specific details are described in detail in the following description of the invention. However, those skilled in the art will fully understand the invention even without these detailed descriptions.

[0025] Please refer to the following: Figures 1-4This embodiment provides a powder separator, including a shell 1, a collection box 2, a filter assembly 3, a support assembly 4, a negative pressure mechanism 5, and a striking mechanism 6; The collecting box 2 is connected to the shell 1; it should be understood that the shell 1 is the outer shell of the powder separator, including the feed inlet, air supply inlet, coarse particle discharge inlet, fine particle discharge inlet, etc., wherein the fine particle discharge inlet is connected to the collecting box 2.

[0026] The support assembly 4 is located inside the housing 1, and the filter assembly 3 is movably mounted on the support assembly 4; specifically, the filter assembly 3 can be raised and lowered, and can also move axially, and the support assembly 4 is elastic.

[0027] The negative pressure mechanism 5 and the striking mechanism 6 are rotatably mounted on the housing 1. After the filter assembly 3 descends, the rotation of the negative pressure mechanism 5 drives the striking mechanism 6 to rotate, causing the striking mechanism 6 to intermittently strike the filter assembly 3. Specifically, the negative pressure mechanism 5 and the striking mechanism 6 are located inside the filter assembly 3. When the mesh gaps of the filter assembly 3 are blocked, the overall weight increases, and after accumulating to a certain amount, it causes the filter assembly 3 to descend. The rotation of the striking mechanism 6 can strike the filter assembly 3 circumferentially. After the weight of the filter assembly 3 is reduced, the filter assembly 3 rises, and the rotation of the negative pressure mechanism 5 no longer drives the striking mechanism 65 to rotate, nor does it cause the striking mechanism 65 to strike the filter assembly 3.

[0028] In this application, before the knocking ends or before blockage occurs, the filter assembly 3 is in the un-descended position. The rotation of the negative pressure mechanism 5 only generates negative pressure to attract coal dust, without driving the knocking mechanism 6 to rotate or knock the filter assembly 3. After a certain amount of coal dust accumulates in the filter screen of the filter assembly 3, the filter assembly 3 will descend. After descending, the rotation of the negative pressure component 52 can drive the knocking mechanism 6 to rotate circumferentially and knock the filter assembly 3 circumferentially. That is, in this application, when coal dust blocks the filter assembly 3 to a certain extent and affects coal dust separation, the knocking mechanism 6 is activated to knock the filter assembly 3 circumferentially, thereby preventing the coal dust separation efficiency from being too slow.

[0029] In other embodiments, the support assembly 4 includes a fixed plate 41, a return spring 42, and a proximity switch 43. The fixed plate 41 is fixed inside the housing 1, the filter assembly 3 is placed on the fixed plate 41, and multiple return springs 42 are provided between the filter assembly 3 and the fixed plate 41. The proximity switch 43 is located on the fixed plate 41. The descent of the filter assembly 3 can trigger the proximity switch 43, and the triggering of the proximity switch 43 can cause the rotation of the negative pressure mechanism 5 to drive the rotation and striking of the striking mechanism 6. Specifically, the fixed plate 41 is a U-shaped plate, and the filter assembly 3 is placed in the U-shaped groove and can slide axially. It should be understood that when the filter assembly 3 descends close to the proximity switch 43, it is triggered, causing the rotation of the negative pressure mechanism 5 to drive the rotation and striking of the striking mechanism 6; when the filter assembly 3 rises away from the proximity switch 43, it is disengaged, and the rotation of the negative pressure mechanism 5 cannot drive the rotation or striking of the striking mechanism 6.

[0030] In other embodiments, the filter assembly 3 includes a support plate 31, a filter screen 32, and a filter elastic rope 33. The support plate 31 is placed on a fixed plate 41, and the filter screen 32 is vertically mounted on the support plate 31 and connected to the support plate 31 via the filter elastic rope 33. Specifically, the support plate 31 is a U-shaped plate, which is upside down on the fixed plate 41, and the fixed plate 41 forms a handshake structure, allowing the support plate 31 to move radially. A return spring 42 is provided within the handshake structure, allowing the support plate 31 to return to its original position after movement. Preferably, the proximity switch 43 is a Hall switch, and a trigger magnet is provided on the filter screen 32. When the filter screen 32 descends, the trigger magnet triggers the Hall switch.

[0031] In other embodiments, the negative pressure mechanism 5 includes a drive assembly 51, a negative pressure assembly 52, a driven assembly 53, a telescopic member 54, and a wedge 55. The negative pressure assembly 52 is rotatably connected to the housing 1, and the drive assembly 51 is located inside the housing 1 and can drive the negative pressure assembly 52 to rotate. The driven assembly 53 is telescopically mounted on the negative pressure assembly 52. ​​After the driven assembly 53 extends, the rotation of the negative pressure assembly 52 can drive the striking mechanism 6 to rotate and strike. The telescopic member 54 is located on the housing 1, and the telescopic end of the telescopic member 54 is provided with a wedge 55. The descent of the filter assembly 3 can drive the telescopic member 54 to extend, and through the wedge 55, drive the driven assembly 53 to extend. It should be understood that in the initial state, the driven assembly 53 is in a compressed state. The descent of the filter screen 32 of the filter assembly 3 triggers the proximity switch 43, causing the telescopic member 54 to extend. The bottom end of the wedge 55 has an annular inclined surface. Specifically, the telescopic member 54 is preferably an electric telescopic rod. After the proximity switch 43 is triggered, the telescopic member 54 extends and maintains that length. After the proximity switch 43 is turned off, the telescopic rod retracts.

[0032] In other embodiments, the negative pressure assembly 52 includes a rotating tube 521, a negative pressure toothed ring 522, and negative pressure blades 523. The rotating tube 521 is rotatably connected to the housing 1, and the negative pressure toothed ring 522 is coaxially fixed on the rotating tube 521. The drive assembly 51 can drive the negative pressure toothed ring 522 to rotate. Multiple negative pressure blades 523 are provided and are arranged around the rotating tube 521. It should be understood that the rotation of the rotating tube 521 generates negative pressure through the negative pressure blades 523, drawing in coal powder. Specifically, the telescopic bracket and wedge block 55 are located inside the rotating tube 521, which is closed at the bottom and connected to the housing 1 at the top.

[0033] Furthermore, the drive assembly 51 includes a drive motor 511 and a drive gear 512; the drive motor 511 is disposed inside the housing 1, and the drive gear 512 is coaxially fixed on the output shaft of the drive motor 511 and can drive the negative pressure assembly 52 to rotate. Specifically, the drive gear 512 meshes with the negative pressure gear ring 522.

[0034] In other embodiments, the driven component 53 includes a sliding tooth 531, a first elastic rope 532, a push rod 533, and a second elastic rope 534; the sliding tooth 531 is slidably mounted on the rotating tube 521 and connected to the rotating tube 521 via the first elastic rope 532, and the sliding tooth 531 can drive the striking mechanism 6 to rotate; the push rod 533 is slidably mounted on the rotating tube 521 and connected to the rotating tube 521 via the second elastic rope 534, and the push rod 533 can drive the striking mechanism 6 to strike the filter component 3; the extension of the telescopic member 54 can slide outward through the wedge block 55 chamber, sliding the sliding tooth 531 and the push rod 533. It should be understood that, in the initial state, the first elastic rope 532 and the second elastic rope 534, through their own elasticity, drive the sliding wheel teeth 531 and the push rod 533 away from the striking mechanism 6. After the telescopic member 54 extends, the wedge block 55, through its inclined surface at the bottom, drives the sliding wheel teeth 531 and the push rod 533 to slide outward, so that when the rotating tube 521 rotates, the sliding wheel teeth 531 can drive the striking mechanism 6 to rotate, and the push rod 533 can drive the striking mechanism 6 to strike. Both the sliding wheel teeth 531 and the push rod 533 slide radially along the rotating tube 521.

[0035] In other embodiments, the striking mechanism 6 includes a first connecting rod 61, a rotating gear ring 62, a second connecting rod 63, a driven gear 64, and a striking assembly 65. The top end of the first connecting rod 61 is fixed inside the housing 1, and the other end of the first connecting rod 61 is connected to a rotatable rotating gear ring 62. The driven gear 64 is rotatably mounted inside the housing 1 via the second connecting rod 63. The driven gear 64 meshes with the rotating gear ring 62 and can also mesh with the negative pressure mechanism 5. The striking assembly 65 is telescopically mounted on the rotating gear ring 62, and the rotation of the negative pressure mechanism 5 can cause the striking assembly 65 to extend. Specifically, after the sliding gear tooth 531 extends, the rotating tube 521 partially completes its travel in this part of the gear and can mesh with the driven gear 64. This allows the rotating tube 521 to drive the driven gear 64 to rotate by a fixed angle each time it rotates, which in turn drives the rotating gear ring 62 to rotate by a fixed angle. Since the striking component 65 is located on the rotating gear ring 62, it rotates to a new position as the rotating gear ring 62 rotates. Each rotation of the push rod 533 with the rotating tube 521 causes the striking component 65 to extend and retract, thus each rotation of the rotating tube 521 causes the striking component 65 to strike the filter screen 32 for cleaning. That is, for every one rotation of the rotating tube 521, the striking component 65 changes position and extends and retracts once to strike the filter screen 32. Specifically, the rotating gear ring 62 has an annular groove and is connected to the first connecting rod 61 via a sliding block, thereby realizing the rotation of the rotating gear ring 62. The rotating gear and the rotating tube 521 are coaxial.

[0036] In other embodiments, the striking assembly 65 includes a connecting plate 651, a sliding rod 652, a striking spring 653, a push plate 654, and a striking rod 655. The connecting plate 651 is fixed to the rotating gear ring 62, and the sliding rod 652 is slidably connected to the connecting plate 651 and connected to the connecting plate 651 through the striking spring 653. The push plate 654 and the striking rod 655 are respectively fixed to the sliding rod 652. The rotation of the negative pressure mechanism 5 can drive the striking rod 655 to move towards the filter assembly 3 by squeezing the push plate 654. Specifically, the connecting plate 651 is provided with a groove, and the sliding rod 652 is slidably connected in the groove and connected to the other end of the groove through the striking spring 653. When the pushing rod 533 rotates with the rotating tube 521, it presses the pushing plate 654 from the side, causing the striking rod 655 to move towards the filter screen 32 and strike the filter screen 32, causing the filter screen 32 to move radially along the striking rod 655. After the pushing rod 533 leaves the pushing plate 654, the striking spring 653 drives the striking rod 655 away from the filter screen 32, and the filter screen 32 returns to its original position under the action of the return spring 42, thus completing one vibration of the filter screen 32. That is, when the filter screen 32 is too clogged, the rotating tube 521 strikes the filter screen 32 once every one rotation and moves to the next position to prepare for the next strike.

[0037] In other solutions, the telescopic component 54 can retract with a delay. Specifically, after the Hall switch is turned off, a delay circuit maintains the motor drive signal, keeping the telescopic rod in its extended state. After the delay period, the circuit automatically switches to the retraction command. Furthermore, utilizing the monostable mode of a 555 timer (the transient time is determined by the RC parameters), a delay is triggered after the Hall switch is turned off, during which the relay remains engaged, maintaining positive power supply to the motor. After the delay, the relay releases, and the motor switches to reverse power supply to achieve retraction. That is, even after the filter screen 32 has been cleaned to its retraction position, it can continue cleaning, preventing incomplete cleaning.

[0038] In addition to its application in the field of dry powder separation of coal powder, this application can also be applied in the field of dry powder transportation and separation. The specific application can be selected according to the relevant application scenario and is not fixed.

[0039] The powder separator described above can automatically clean the area around the filter screen after coal powder has clogged the filter screen to a certain extent.

[0040] It should be understood that the above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. It should not be considered that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A powder separator, characterized in that: It includes a housing, a collection box, a filter assembly, a support assembly, a negative pressure mechanism, and a striking mechanism; The collection box and the housing are connected; The support assembly is disposed within the housing, and the filter assembly is movably disposed on the support assembly; The negative pressure mechanism and the tapping mechanism are rotatably mounted on the housing; after the filter assembly is lowered, the rotation of the negative pressure mechanism can drive the tapping mechanism to rotate, and cause the tapping mechanism to tap the filter assembly intermittently. The support assembly includes a fixed plate, a return spring, and a proximity switch. The fixed plate is fixed inside the housing, the filter assembly is placed on the fixed plate, and multiple return springs are provided between the filter assembly and the fixed plate. The proximity switch is located on the fixed plate. The descent of the filter assembly can trigger the proximity switch, and the triggering of the proximity switch can cause the rotation of the negative pressure mechanism to drive the rotation and striking of the striking mechanism. The negative pressure mechanism includes a driving component, a negative pressure component, a driven component, a telescopic component, and a wedge. The negative pressure component is rotatably connected to the housing. The driving component is located inside the housing and can drive the negative pressure component to rotate. The driven component is telescopically mounted on the negative pressure component. When the driven component extends, the rotation of the negative pressure component can drive the striking mechanism to rotate and strike. The telescopic component is located on the housing. The telescopic end of the telescopic component is provided with the wedge. The descent of the filter component can drive the telescopic component to extend, and through the wedge, drive the driven component to extend. The driven component includes a sliding wheel tooth, a first elastic rope, a push rod, and a second elastic rope; The striking mechanism includes a first connecting rod, a rotating gear ring, a second connecting rod, a driven gear, and a striking assembly. The top end of the first connecting rod is fixed inside the housing, and the other end of the first connecting rod is connected to the rotatable rotating gear ring. The driven gear is rotatably mounted inside the housing via the second connecting rod, and the driven gear meshes with the rotating gear ring and can also mesh with the negative pressure mechanism. The striking assembly is telescopically mounted on the rotating gear ring, and the rotation of the negative pressure mechanism can cause the striking assembly to extend. The striking assembly includes a connecting plate, a sliding rod, a striking spring, a push plate, and a striking rod; the connecting plate is fixed to the rotating gear ring, the sliding rod is slidably connected to the connecting plate, and connected to the connecting plate through the striking spring; the push plate and the striking rod are respectively fixed on the sliding rod, and the rotation of the negative pressure mechanism can drive the striking rod to move towards the filter assembly by squeezing the push plate.

2. The powder separator according to claim 1, characterized in that: The filter assembly includes a support plate, a filter screen, and a filter elastic rope; the support plate is placed on the fixed plate, the filter screen is movably mounted on the support plate, and is connected to the support plate via the filter elastic rope.

3. The powder separator according to claim 1, characterized in that: The negative pressure assembly includes a rotating tube, a negative pressure toothed ring, and negative pressure blades; the rotating tube is rotatably connected to the housing, the negative pressure toothed ring is coaxially fixed on the rotating tube, and the driving assembly can drive the negative pressure toothed ring to rotate; multiple negative pressure blades are provided and are arranged around the rotating tube.

4. A powder separator according to claim 1, characterized in that: The drive assembly includes a drive motor and a drive gear; the drive motor is located inside the housing, and the drive gear is coaxially fixed on the output shaft of the drive motor and can drive the negative pressure assembly to rotate.

5. A powder separator according to claim 3, characterized in that: The sliding wheel teeth are slidably mounted on the rotating tube and connected to the rotating tube via the first elastic rope. The sliding wheel teeth can drive the striking mechanism to rotate. The push rod is slidably mounted on the rotating tube and connected to the rotating tube via the second elastic rope. The push rod can drive the striking mechanism to strike the filter assembly. The extension of the telescopic member can cause the sliding wheel teeth and the push rod to slide outward via the wedge block.

6. A powder separator according to claim 1, characterized in that: The telescopic component can retract after a delay.

Images