A magnesium powder linear vibrating screen

Abstract

The invention relates to the technical field of screening devices, and specifically discloses a magnesium powder linear vibrating screen, comprising a box body, wherein a vibrating screening device is arranged in the box body, the vibrating screening device comprises a screening component, a vibrating component, a conveying component and an impact component, the screening component comprises a conveyor belt, the conveyor belt is densely covered with screening holes, a feed port is arranged on the side wall of the box body, the feed port is communicated with a screening cavity formed by the inner side of the conveyor belt, the vibrating component comprises a vibrating motor, which is used to drive the box body to reciprocate along a direction perpendicular to the inclination of the vibrating motor, the conveying component is used to convey unqualified magnesium powder in the screening cavity to the upper end of the conveyor belt, and the impact component comprises a plurality of rubber balls; the invention can spread the magnesium powder on the conveyor belt through the reciprocating vibration of the box body for screening, and at the same time, when the rubber balls reciprocate, they can clean out the magnesium powder blocked in the screening holes and impact and crush the agglomerated magnesium powder conveyed to the upper end of the conveyor belt.

Description

Technical Field

[0001] The invention relates to the technical field of screening devices, and in particular to a linear vibrating screen for magnesium powder. Background Art

[0002] During the production process of magnesium powder, due to the influence of external factors, there are different particle sizes. Therefore, a screening device is needed to screen it before use to select magnesium powder that does not meet the standards. When the existing screening device screens the magnesium powder, the magnesium powder is placed on the screen and screened by the vibration of the screen. However, the screen holes are often blocked by materials, reducing the screening efficiency of the magnesium powder. Therefore, the screen needs to be cleaned regularly.

[0003] The patent document with authorization announcement number CN115350907B discloses a powder screening device with anti-blocking function, including an outer tank body, a collecting hopper, a screening barrel, a vibration motor, a feed hopper, a feed pipe, a discharge hopper, a brush plate, a first hydraulic cylinder, a connecting seat, a rotating shaft and a first driving component. When the powder is screened, the powder can be prevented from blocking the screening holes. Specifically, when it is necessary to clear the material blocked in the screening hole, the vibration motor is stopped first, and then the first hydraulic cylinder is extended to drive the brush plate to descend to extend into the screening barrel, and finally the bristles are abutted against the screening plate, and then the first driving component is started to drive the brush plate to rotate, and the rotating bristles clear the material blocked in the screening hole, thereby unblocking the screening holes of the screening plate, solving the problem that the sieve holes of the existing screening device are often blocked by materials when screening powder.

[0004] However, when brushing is used to clear the blocked materials in the screening holes, if the bristles are soft, the blocked materials may not be completely cleared out, resulting in poor clearing effect and affecting the subsequent screening efficiency. If the bristles are hard, some material particles may be hard, which may cause wear on the surface of the screen plate during the brushing process and affect the service life of the screen plate. Summary of the invention

[0005] The present invention provides a magnesium powder linear vibrating screen, which aims to solve the problem that when brushing is used to dredge materials blocked in screening holes in the related technology, if the bristles are soft, the blocked materials may not be completely cleared out, the dredging effect is poor, and the subsequent screening efficiency is affected; if the bristles are hard, the surface of the screen plate may be worn during the brushing process due to the hard particles of some materials, thereby affecting the service life of the screen plate.

[0006] A magnesium powder linear vibrating screen of the present invention comprises a box body and a frame body, wherein a vibrating screening device is arranged in the box body, and the vibrating screening device comprises:

[0007] A screening assembly, the screening assembly comprising a conveyor belt arranged in a box body and a driving structure for driving the conveyor belt to circulate and move, the conveyor belt is densely covered with screening holes, a feed port is arranged on the side wall of the box body, the feed port is communicated with a screening cavity enclosed by the inner side of the conveyor belt, and a discharge port is arranged at the lower end of the box body;

[0008] A vibration assembly, the vibration assembly comprising a vibration motor obliquely arranged at the lower end of the box body, used to drive the box body to reciprocate and vibrate in a direction perpendicular to the inclination of the vibration motor;

[0009] A conveying assembly, which is arranged on the box body and is used to convey unqualified magnesium powder in the screening chamber to the upper end of the conveyor belt;

[0010] The impact assembly includes a plurality of rubber balls movably arranged above the conveyor belt. When the rubber balls reciprocate and vibrate under the action of the vibration motor, the magnesium powder blocked in the screening holes can be cleaned into the screening cavity, and the agglomerated magnesium powder transported to the upper end of the conveyor belt can be impacted and crushed.

[0011] The magnesium powder in the screening chamber can be spread and evenly spread on the conveyor belt to improve the screening efficiency; the magnesium powder in the screening chamber can continue to be screened through the newly replaced conveyor belt part through the circular movement of the conveyor belt, and at the same time, the blocked part of the conveyor belt can be unblocked through the vibration of the rubber ball; the unqualified magnesium powder in the screening chamber can be transported to the top of the conveyor belt through the conveying component, so that the agglomerated magnesium powder therein can be impacted and broken during the vibration of the rubber ball.

[0012] Preferably, the conveying assembly includes a conveying pipe and an exhaust fan arranged on the conveying pipe, one end of the conveying pipe is toward the side of the screening chamber away from the feed port, and the other end of the conveying pipe is toward the top of the conveyor belt.

[0013] Preferably, a spring 1 is connected between the lower end of the box body and the frame body, and a preload adjustment rod is provided on the spring 1 to adjust the vibration amplitude of the box body.

[0014] Preferably, a plurality of baffles are provided in the box above the conveyor belt, each baffle is arranged along the width direction of the box, and the plurality of baffles are arranged at intervals along the length direction of the box to divide the space above the conveyor belt into a plurality of impact grooves.

[0015] During the vibration process of the rubber ball, it is always in the corresponding impact groove to prevent the rubber ball from accumulating on one side of the box.

[0016] Preferably, it also includes a driving member, wherein a mounting rod is provided in the box body along the width direction of the box body, and both ends of the mounting rod are rotatably connected to the side walls of the box body through torsion springs, and the upper side of the baffle is connected to the mounting rod, and the driving member is used to drive the baffle to rotate around the axis of the mounting rod.

[0017] The baffle plate can be rotated to impact the rubber balls accumulated in the impact groove, so that the rubber balls are dispersed in the impact groove, further ensuring the dredging effect of the rubber balls on the conveyor belt.

[0018] Preferably, a mounting groove with an open lower end is provided on the lower side of the baffle, and a paddle is slidably provided in the mounting groove. When the baffle rotates around the axis of the mounting rod, the paddle can slide along the mounting groove toward or away from the mounting rod, so that the distance between the side of the paddle facing the conveyor belt and the conveyor belt remains unchanged, and the distance between the two is smaller than the diameter of the rubber ball.

[0019] By arranging the paddle plate, the distance between the lower side of the paddle plate and the conveyor belt remains unchanged during the rotation of the baffle plate, so that the rubber ball will not pass through the lower side of the baffle plate.

[0020] Preferably, the driving member is a driving block fixed on the conveyor belt, the driving block is arranged at the edge of the outer peripheral side of the conveyor belt, both ends of the shift plate are connected with rods, the driving block is provided with a groove adapted to the rod, and during the circular movement of the conveyor belt, the driving block can contact the rod, and a spring 2 is connected between one side of the shift plate located in the installation groove and the baffle.

[0021] Preferably, a baffle plate is provided on one side of the box body away from the feed port, one side of the baffle plate is connected to the box body, and the other side is in contact with the outer peripheral side of the conveyor belt, and is used to receive unqualified magnesium powder. A feeding port for taking out unqualified magnesium powder and a sealing plate for closing the feeding port are provided on the side wall of the box body.

[0022] The remaining magnesium powder after crushing can be conveyed to the baffle plate by the movement of the conveyor belt, so as to be easily taken out.

[0023] Preferably, the bottom plate of the box body gradually slopes downward in a direction away from the feed inlet, and the discharge port is arranged at an end of the bottom plate away from the feed inlet.

[0024] The beneficial effects of the present invention are:

[0025] 1. The vibration motor can drive the box to vibrate back and forth, and the magnesium powder in the screening chamber can be spread flat on the conveyor belt, which is beneficial to improve the screening efficiency of the magnesium powder.

[0026] 2. The present invention is provided with an impact assembly, which can make the magnesium powder in the screening chamber continue to be screened through the new replacement part of the conveyor belt through the circulation movement of the conveyor belt to ensure the screening efficiency. In addition, the vibration of the rubber ball can generate a top-down impact force on the blocked part of the conveyor belt, and the magnesium powder blocked in the screening hole can be cleared out in reverse, and fall into the screening chamber for re-screening, while avoiding the damage that may be caused by the brushing method.

[0027] 3. The present invention is provided with a conveying assembly, which can convey the unqualified magnesium powder in the screening chamber to the top of the conveyor belt, so that the agglomerated magnesium powder therein can be impacted and crushed during the vibration of the rubber ball, and at the same time, it is beneficial to collect the remaining unqualified magnesium powder.

[0028] 4. The present invention can make the baffle plate and the paddle plate rotate through the cooperation of the baffle plate, the paddle plate and the driving block, impact the accumulated rubber balls, so that the rubber balls are dispersed above the conveyor belt, and further ensure the dredging effect of the rubber balls on the conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0030] Figure 2 It is a schematic diagram of the assembly structure of the box body and the vibration screening device of the present invention.

[0031] Figure 3 It is a schematic diagram of the baffle and the paddle of the present invention when they are in a vertical state.

[0032] Figure 4 The present invention Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0033] Figure 5 It is a schematic diagram of the baffle and the paddle of the present invention when they are in an inclined state.

[0034] Figure 6 It is a schematic diagram of the assembly structure of the baffle plate and the paddle plate of the present invention.

[0035] Reference numerals:

[0036] 11. Box body; 111. Feed inlet; 112. Discharge outlet; 113. Material taking outlet; 114. Bottom plate; 12. Frame; 13. Spring 1; 14. Baffle plate; 15. Rotating roller; 21. Conveyor belt; 211. Screening hole; 212. Screening chamber; 213. Conveying section 1; 214. Conveying section 2; 22. Vibrating motor; 23. Rubber ball; 24. Conveying pipe; 25. Exhaust fan; 31. Baffle plate; 311. Mounting slot; 32. Mounting rod; 33. Torsion spring; 34. Paddle plate; 341. Rod; 342. Spring 2; 35. Driving block. DETAILED DESCRIPTION

[0037] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0038] like Figures 1 to 6 As shown, a linear vibrating screen for magnesium powder of the present invention comprises a box body 11 and a frame body 12 arranged below the box body 11. A vibrating screening device is arranged in the box body 11. The vibrating screening device comprises a screening component, a vibrating component, a conveying component and an impact component.

[0039] In this embodiment, for ease of understanding, the length direction of the box body 11 is defined as the left-right direction, and the width direction of the box body 11 is defined as the front-back direction.

[0040] The screening component includes a conveyor belt 21 rotatably arranged in a box body 11 and a driving structure for driving the conveyor belt 21 to move in a circulation manner. The conveyor belt 21 is densely covered with screening holes 211 for screening magnesium powder. A feed port 111 is provided on the side wall of the box body 11. The feed port 111 is communicated with a screening cavity 212 enclosed by the inner side of the conveyor belt 21. A discharge port 112 is provided at the lower end of the box body 11. The driving structure includes two rotating rollers 15 rotatably arranged in the box body 11, and a motor for driving the rotating rollers 15 to rotate. The conveyor belt 21 is moved in a circulation manner through the two rotating rollers 15. The vibration component includes a vibration motor 22, which is tilted at the lower end of the box body 11 and is used to drive the box body 11 to vibrate back and forth in a direction perpendicular to the tilt of the vibration motor 22, so that the magnesium powder in the screening cavity 212 can move in a direction away from the feed port 111.

[0041] It is defined that the horizontal section where the conveyor belt 21 rotates to the upper side is the conveyor section 1 213, and the horizontal section where it rotates to the lower side is the conveyor section 214. Specifically, when in use, the magnesium powder to be screened is added from the feed port 111 to the screening chamber 212, and the magnesium powder will be screened through the screening holes 211 on the conveyor section 214. Qualified magnesium powder will pass through the screening holes 211 to enter the bottom of the conveyor belt 21 and be discharged from the discharge port 112, and unqualified magnesium powder will be retained in the screening chamber 212. During this process, the vibration motor 22 drives the box body 11 to vibrate back and forth from the upper left to the lower right, so that the magnesium powder in the screening chamber 212 can move away from the feed port 111, thereby spreading the magnesium powder on the surface of the conveyor section 214. The dispersion and spreading of the magnesium powder and the vibration of the conveyor belt 21 are beneficial to improving the screening efficiency of the magnesium powder.

[0042] The conveying assembly is arranged on the box body 11, and is used for conveying the unqualified magnesium powder in the screening chamber 212 to the upper end of the conveyor belt 21. The impact assembly includes a plurality of rubber balls 23 movably arranged above the conveyor belt 21. When the rubber balls 23 reciprocate and vibrate under the action of the vibration motor 22, the magnesium powder blocked in the screening hole 211 can be cleaned into the screening chamber 212, and at the same time, the agglomerated magnesium powder conveyed to the upper end of the conveyor belt 21 can be impacted and crushed.

[0043] Specifically, in the process of screening magnesium powder through the screening holes 211, the screening holes 211 are prone to get clogged. Therefore, a driving structure can be set to regularly drive the conveyor belt 21 to circulate. Through the circulatory movement of the conveyor belt 21, the magnesium powder in the screening chamber 212 can continue to be screened through the newly replaced conveyor belt 21 part to ensure the screening efficiency of the magnesium powder. At the same time, the blocked part on the conveyor belt 21 can be rotated to the upper side. Since a plurality of rubber balls 23 are arranged above the conveyor belt 21, the rubber balls 23 can be driven to vibrate in the space formed between the top plate of the box body 11 and the conveying part 213 during the process of the vibration motor 22 driving the box body 11 to vibrate back and forth, thereby generating a top-down impact force on the blocked part of the conveyor belt 21 rotated to the upper side, thereby removing the blocked part on the screening hole 21. The magnesium powder in the separation hole 211 is cleaned out in reverse and falls into the screening chamber 212 for re-screening. The impact of the rubber ball 23 on the conveyor belt 21 can ensure the cleaning effect of the conveyor belt 21, and at the same time avoid the damage to the conveyor belt 21 caused by the brushing method. In addition, due to the provision of a conveying assembly, the unqualified magnesium powder trapped in the screening chamber 212 can be transported to the top of the conveying part 213, wherein the unqualified magnesium powder includes magnesium powder with larger particles and magnesium powder in agglomerates. When the unqualified magnesium powder is transported to the top of the conveying part 213, the agglomerated magnesium powder can be impacted and crushed by the vibration of the rubber ball 23, so that the crushed magnesium powder can fall back into the screening chamber 212 through the screening holes 211 on the conveying part 213 for screening.

[0044] In some embodiments, the conveying assembly includes a conveying pipe 24 and an exhaust fan 25 arranged on the conveying pipe 24, one end of the conveying pipe 24 faces the side of the screening chamber 212 away from the feed port 111, and the other end of the conveying pipe 24 faces the top of the conveyor belt 21.

[0045] Specifically, Figures 1 to 5As shown, the vibration motor 22 drives the box body 11 to vibrate back and forth from the upper left to the lower right, so that the magnesium powder in the screening chamber 212 can move from the right to the left. During this process, the magnesium powder can be screened through the screening holes 211 on the conveying part 214, and the unqualified magnesium powder will gradually move to the left side of the screening chamber 212 for accumulation. Therefore, after a period of screening, the exhaust fan 25 can be driven to draw the unqualified magnesium powder in the screening chamber 212 to the top of the conveying part 1 213, so that the agglomerated magnesium powder therein can be impacted and broken during the vibration of the rubber ball 23.

[0046] In some embodiments, a spring 13 is connected between the lower end of the box body 11 and the frame body 12 , and a preload adjustment rod is provided on the spring 13 to adjust the vibration amplitude of the box body 11 .

[0047] In the process of driving the box body 11 to vibrate back and forth by the vibration motor 22, since the vibration direction is inclined, the rubber ball 23 will gradually move to the left side of the box body 11 and accumulate on the left side of the box body 11, affecting the subsequent dredging effect on the conveyor belt 21. Therefore, in some embodiments, a plurality of baffles 31 are provided above the conveyor belt 21 in the box body 11, and each baffle 31 is arranged along the width direction of the box body 11, and the plurality of baffles 31 are arranged at intervals along the length direction of the box body 11 to divide the space above the conveyor belt 21 into a plurality of impact grooves.

[0048] Specifically, Figures 2 to 5 As shown, when the rubber balls 23 are placed in the box body 11, the rubber balls 23 can be evenly distributed in a plurality of impact grooves, and in the subsequent vibration process of the rubber balls 23, the baffle 31 can block the rubber balls 23 so that the rubber balls 23 are always in the corresponding impact grooves, thereby preventing the rubber balls 23 from gradually accumulating to the left side of the box body 11 during the vibration process, so as to ensure the dredging effect of the rubber balls 23 on the conveyor belt 21.

[0049] In some embodiments, a driving member is also included. A mounting rod 32 is provided inside the box body 11 along the width direction of the box body 11. Both ends of the mounting rod 32 are rotatably connected to the side walls of the box body 11 through torsion springs 33 respectively. The upper side of the baffle 31 is connected to the mounting rod 32. The driving member is used to drive the baffle 31 to rotate around the axis of the mounting rod 32.

[0050] Specifically, Figures 2 to 6As shown, in the process of the rubber ball 23 being driven to vibrate by the vibration motor 22, although the rubber ball 23 is always in the corresponding impact groove, it will gradually move toward the direction of the baffle plate 31 on the left side of the impact groove, so that the rubber ball 23 is accumulated on the left side of the impact groove. At this time, the baffle plate 31 can be driven by the driving member to rotate around the axis of the mounting rod 32. During the rotation of the baffle plate 31, the rubber balls 23 accumulated on the right side of the baffle plate 31 can be impacted, so that the accumulated rubber balls 23 are redispersed in the impact groove, further ensuring the dredging effect of the rubber balls 23 on the conveyor belt 21.

[0051] In some embodiments, a mounting groove 311 with an open lower end is provided on the lower side of the baffle 31, and a paddle 34 is slidably provided in the mounting groove 311. When the baffle 31 rotates around the axis of the mounting rod 32, the paddle 34 can slide along the mounting groove 311 toward or away from the mounting rod 32, so that the distance between the paddle 34 and the conveyor belt 21 facing the side of the conveyor belt 21 remains unchanged, and the distance between the two is smaller than the diameter of the rubber ball 23.

[0052] Specifically, Figures 3 to 6 As shown, when the baffle plate 31 is turned from a vertical state to an inclined state under the action of the driving member, the dial plate 34 will move along the mounting groove 311 in a direction away from the mounting rod 32. When the baffle plate 31 is turned from an inclined state to a vertical state, the dial plate 34 will move along the mounting groove 311 in a direction close to the mounting rod 32, so that during the rotation of the baffle plate 31, the distance between the lower side of the dial plate 34 and the conveying part 213 remains unchanged, so that unqualified magnesium powder located above the conveying part 213 can pass through from the lower side of the dial plate 34, while the rubber ball 23 cannot pass through from the lower side of the dial plate 34.

[0053] In some embodiments, the driving member is a plurality of driving blocks 35 fixed on the conveyor belt 21, and the plurality of driving blocks 35 are all arranged at the edge position of the outer peripheral side of the conveyor belt 21. The two ends of the shift plate 34 are connected with a rod 341. The driving block 35 is provided with a groove adapted to the rod 341, and during the circular movement of the conveyor belt 21, the driving block 35 can contact the rod 341. A spring 2 342 is connected between one side of the shift plate 34 located in the installation groove 311 and the baffle 31.

[0054] Specifically, Figures 3 to 6As shown, during the circular movement of the conveyor belt 21, the driving block 35 arranged on the conveyor belt 21 can be driven to move synchronously. When the driving block 35 rotates to the top of the conveying portion 213, the driving block 35 can contact the rod 341 on the dial plate 34, so that the rod 341 is stuck in the groove on the driving block 35, so that the rod 341 can move synchronously with the driving block 35. Through the movement of the rod 341, the baffle plate 31 and the dial plate 34 will rotate around the axis of the mounting rod 32, and the torsion spring 33 will be twisted to store force. The groove on the block 35 keeps the distance between the lower side of the paddle plate 34 and the conveying portion 213 unchanged, so that during the rotation of the baffle plate 31 and the paddle plate 34, the paddle plate 34 will slide along the mounting groove 311 in the direction away from the mounting rod 32, and the spring 2 342 will be stretched to accumulate force until the spring 2 342 is stretched to the limit state, so that the driving block 35 can continue to move over the rod 341. At this time, the baffle plate 31 and the paddle plate 34 will rotate and reset under the action of the torsion spring 33, and the paddle plate 34 will slide along the mounting groove 311 and reset under the action of the spring 2 342.

[0055] In some embodiments, a baffle plate 14 is provided on one side of the box body 11 away from the feed port 111. One side of the baffle plate 14 is connected to the box body 11, and the other side is in contact with the outer peripheral side of the conveyor belt 21, and is used to receive unqualified magnesium powder. A material taking port 113 for taking out unqualified magnesium powder and a sealing plate for closing the material taking port 113 are provided on the side wall of the box body 11.

[0056] Specifically, Figure 1 , Figure 3 and Figure 5 As shown, after the unqualified magnesium powder in the screening chamber 212 is transported to the top of the conveying part 213 by the conveying assembly, the agglomerated magnesium powder therein can be impacted and broken by the vibration of the rubber ball 23, so that the crushed magnesium powder enters the screening chamber 212 through the screening hole 211 for re-screening, but a part of the unqualified magnesium powder with larger particles will still remain above the conveying part 213. At this time, the circulating movement of the conveyor belt 21 can make the remaining unqualified magnesium powder gradually move to the left side of the box body 11 and fall on the baffle plate 14. After the screening is completed, the sealing plate is opened and the unqualified magnesium powder on the baffle plate 14 can be taken out from the material taking port 113. The unqualified magnesium powder in the screening chamber 212 is transported to the top of the conveying part 213 by the conveying assembly, which can not only use the vibration of the rubber ball 23 to impact and break the agglomerated magnesium powder, but also facilitate the collection of the remaining unqualified magnesium powder.

[0057] like Figure 3 and Figure 5As shown, the bottom plate 114 of the box body 11 gradually tilts downward in a direction away from the feed port 111, and the discharge port 112 is arranged at one end of the bottom plate 114 away from the feed port 111. Specifically, after the magnesium powder in the screening chamber 212 falls through the screening hole 211 on the conveying part 214, it will fall on the bottom plate 114 of the box body 11, and gradually slide along the inclined bottom plate 114 to the discharge port 112, so as to collect the screened magnesium powder.

[0058] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A linear vibrating screen for magnesium powder, comprising a box and a frame, wherein a vibrating screening device is arranged in the box, characterized in that: The vibrating screening device comprises: A screening assembly, the screening assembly comprising a conveyor belt arranged in a box body and a driving structure for driving the conveyor belt to circulate and move, the conveyor belt is densely covered with screening holes, a feed port is arranged on the side wall of the box body, the feed port is communicated with a screening cavity enclosed by the inner side of the conveyor belt, and a discharge port is arranged at the lower end of the box body; A vibration assembly, the vibration assembly comprising a vibration motor obliquely arranged at the lower end of the box body, used to drive the box body to reciprocate and vibrate in a direction perpendicular to the inclination of the vibration motor; A conveying assembly, which is arranged on the box body and is used to convey unqualified magnesium powder in the screening chamber to the upper end of the conveyor belt; An impact assembly, wherein the impact assembly includes a plurality of rubber balls movably arranged above the conveyor belt. When the rubber balls reciprocate and vibrate under the action of a vibration motor, the magnesium powder blocked in the screening holes can be cleaned into the screening cavity, and the agglomerated magnesium powder transported to the upper end of the conveyor belt can be impacted and crushed; A plurality of baffles are arranged above the conveyor belt in the box body, each baffle is arranged along the width direction of the box body, and the plurality of baffles are arranged at intervals along the length direction of the box body to divide the space above the conveyor belt into a plurality of impact grooves; It also includes a driving member, wherein a mounting rod is provided in the box body along the width direction of the box body, and both ends of the mounting rod are rotatably connected to the side wall of the box body through a torsion spring, and the upper side of the baffle is connected to the mounting rod, and the driving member is used to drive the baffle to rotate around the axis of the mounting rod; The lower side of the baffle is provided with a mounting groove with an open lower end, and a paddle is slidably provided in the mounting groove. When the baffle rotates around the axis of the mounting rod, the paddle can slide along the mounting groove toward or away from the mounting rod, so that the distance between the side of the paddle facing the conveyor belt and the conveyor belt remains unchanged, and the distance between the two is smaller than the diameter of the rubber ball. The driving member is a driving block fixed on the conveyor belt, the driving block is arranged at the edge of the outer peripheral side of the conveyor belt, the two ends of the paddle plate are connected with rods, the driving block is provided with a groove adapted to the rod, and the driving block can contact the rod during the circular movement of the conveyor belt, and a second spring is connected between one side of the paddle plate located in the installation groove and the baffle plate; The horizontal section where the conveyor belt rotates to the upper side is the conveying section 1, and the horizontal section where the conveyor belt rotates to the lower side is the conveying section 2.

2. A magnesium powder linear vibrating screen according to claim 1, characterized in that: The conveying assembly comprises a conveying pipe and an exhaust fan arranged on the conveying pipe, one end of the conveying pipe faces the side of the screening chamber away from the feed port, and the other end of the conveying pipe faces the top of the conveyor belt.

3. A magnesium powder linear vibrating screen according to claim 1, characterized in that: A spring 1 is connected between the lower end of the box body and the frame body, and a preload adjustment rod is arranged on the spring 1 to adjust the vibration amplitude of the box body.

4. A magnesium powder linear vibrating screen according to claim 1, characterized in that: A baffle plate is provided on one side of the box body away from the feed port, one side of the baffle plate is connected to the box body, and the other side is in contact with the outer peripheral side of the conveyor belt, and is used to receive unqualified magnesium powder. A material taking port for taking out unqualified magnesium powder and a sealing plate for closing the material taking port are provided on the side wall of the box body.

5. A magnesium powder linear vibrating screen according to claim 1, characterized in that: The bottom plate of the box body gradually tilts downward in a direction away from the feed inlet, and the discharge port is arranged at an end of the bottom plate away from the feed inlet.

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