High-efficiency mineral powder vibrating screen

Abstract

The high-efficiency mineral powder vibrating screen comprises a vibrating screen disc, a storage box, a first screen plate and a second screen plate, the top face of one end, in the length direction, of the vibrating screen disc communicates with a feeding hopper, a discharging opening is formed in the other end of the vibrating screen disc, the opening end of the vibrating screen disc obliquely extends downwards into the storage box, and a vibrating motor is arranged on the vibrating screen disc; the first screen plate and the second screen plate are arranged in the vibrating screen tray in parallel in the length direction of the storage box, the first screen plate is arranged above the second screen plate, a first guide plate is obliquely arranged at the end, stretching into the storage box, of the first screen plate, and a second guide plate is arranged at the end, stretching into the storage box, of the second screen plate. The mineral powder screening device has the effects that the screening efficiency of mineral powder is improved, and environmental pollution caused by dust generated in the screening process is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ore powder screening, and in particular to a high-efficiency ore powder vibrating screen. BACKGROUND

[0002] The vibrating screen works by using the reciprocating rotation vibration generated by the vibrator. The upper rotating weight of the vibrator causes the screen surface to produce planar rotary vibration, and the lower rotating weight causes the screen surface to produce conical rotary vibration. The combined effect causes the screen surface to produce complex rotary vibration, and the vibration trajectory is a complex spatial curve. The vibrating screening equipment can be divided into mine vibrating screens, light fine vibrating screens, and experimental vibrating screen machines according to the weight use. Among them, the mine vibrating screen can be divided into high-efficiency heavy screens, self-centering vibrating screens, elliptical vibrating screens, dehydration screens, circular vibrating screens, and linear vibrating screens.

[0003] At present, the existing ore powder vibrating screen has low efficiency when screening. In addition, the screening table of the existing vibrating screen is directly exposed to the outside, and in the process of vibrating screening, the ore powder is easy to leak into the external environment, causing environmental pollution and affecting the working environment of the operator. CONTENT OF THE INVENTION

[0004] In order to realize the screening efficiency of the ore powder and reduce the dust pollution to the environment in the screening process, the present application provides a high-efficiency ore powder vibrating screen.

[0005] The high-efficiency ore powder vibrating screen provided by the present application adopts the following technical scheme:

[0006] A high-efficiency ore powder vibrating screen, comprising a vibrating screen disc, a storage box, a first screen plate and a second screen plate, the top surface of one end of the vibrating screen disc in the length direction is provided with a feeding hopper in communication, and the other end is provided with a discharge port, the vibrating screen disc is inclined, the open end of the vibrating screen disc extends downward to the storage box, a vibrating motor is arranged on the vibrating screen disc, the first screen plate and the second screen plate are arranged in parallel in the vibrating screen disc along the length direction of the storage box, the first screen plate is arranged above the second screen plate, the second screen plate is arranged flush with the bottom edge of the discharge port, screen holes are formed in the first screen plate and the second screen plate, the aperture of the screen hole in the first screen plate is larger than the aperture of the screen hole in the second screen plate, one end of the first screen plate extending into the storage box is provided with a first guide plate, one end of the second screen plate extending into the storage box is provided with a second guide plate, a first storage groove and a second storage groove are arranged in the storage box, the first storage groove is arranged corresponding to the first guide plate, and the second storage groove is arranged corresponding to the second guide plate.

[0007] By adopting the above technical scheme, when the ore powder is screened, the ore powder is poured into the vibrating sieve tray through the feeding hopper, the vibrating motor is started to drive the vibrating sieve tray to vibrate, and the material is subjected to two-stage screening under the action of the first sieve plate and the second sieve plate, so that the ore powder is screened into two kinds of materials with different diameters. The material with a larger diameter falls into the first storage groove under the action of the first guide plate, and the material with a smaller diameter falls into the second storage groove under the action of the second guide plate. The screened dust falls into the bottom end of the vibrating sieve tray. Since the open end of the vibrating sieve tray extends into the closed storage box, the possibility of dust floating into the external environment to affect the environment during the discharging process is reduced. Through the cooperation of the vibrating sieve tray, the storage box, the first sieve plate and the second sieve plate, rapid screening of the ore powder is realized, and the effects of realizing the screening efficiency of the ore powder and reducing dust pollution to the environment during the screening process are achieved.

[0008] Optionally, the lower end of the vibrating sieve tray is connected in communication with a bellows, and a dust collection assembly is arranged at the bottom end of the bellows. The dust collection assembly comprises a conveying pipe, rotating rollers, a rotating chain plate belt and conveying plates. One end of the conveying pipe is connected with the bellows. Two rotating rollers are arranged in parallel in the conveying pipe. The rotating chain plate belt is sleeved on the two rotating rollers. Driving members for driving the rotating rollers to rotate are arranged on the conveying pipe. A plurality of conveying plates are connected to one side of the rotating chain plate belt away from the rotating rollers along the width direction of the rotating chain plate belt. One side of the conveying plate is arranged in abutment with the inner wall of the conveying pipe.

[0009] By adopting the above technical scheme, the dust in the vibrating sieve tray falls into the conveying pipe through the bellows. The driving members drive the rotating rollers to rotate. The rotating chain plate belt rotates under the driving of the rotating rollers. The conveying plates connected to the rotating chain plate belt continuously transport the dust in the conveying pipe.

[0010] Optionally, a dust collection fan is arranged on the conveying pipe. A dust blowing pipe is arranged in communication on the dust collection fan. One end of the dust blowing pipe extends into the bellows and extends towards the conveying pipe.

[0011] By adopting the above technical scheme, when dust is discharged, the dust collection fan is started. The dust blowing pipe blows air towards the conveying pipe. The dust enters the conveying pipe for transportation under the action of air pressure. The arrangement of the dust collection fan reduces the possibility of dust blocking the bellows.

[0012] Optionally, an outflow assembly is arranged at the end of the conveying pipe away from the bellows. The outflow assembly comprises an outflow pipe, an outflow box and a slag collection cylinder. The outflow pipe is arranged in communication on the bottom surface of the end of the conveying pipe away from the bellows. The bottom end of the outflow pipe is arranged in communication with the outflow box. The slag collection cylinder is arranged in the outflow box. A rotating box door is arranged in rotation on the outflow box. The open end of the slag collection cylinder is arranged in correspondence with the open end of the outflow pipe.

[0013] By adopting the technical scheme, the dust transported through the dust collecting assembly enters the slag collecting cylinder in the slag tapping box through the slag tapping pipe for temporary collection.

[0014] Optionally, one side of the transmission pipe is provided with a dust falling collecting pipe, a plurality of dust falling nozzles are communicatively arranged on the dust falling collecting pipe, the dust falling nozzles extend into the transmission pipe, a water delivery pipe is communicatively arranged on the dust falling collecting pipe, and a dust falling water tank is communicatively arranged at an end of the water delivery pipe away from the dust falling collecting pipe.

[0015] By adopting the technical scheme, while dust is collected, a small amount of water is sprayed into the transmission pipe from the dust falling water tank under the action of the water delivery pump, so that the dust is settled.

[0016] Optionally, a bearing disc is coaxially arranged in the slag tapping box, a plurality of placement fan-shaped grooves are equiangularly and spacedly arranged on a top surface of the bearing disc, one of the slag collecting cylinders is placed in each of the placement fan-shaped grooves, a driving member for driving the bearing disc is arranged on the slag tapping box, and a gravity sensor is arranged on a bottom wall of each of the placement fan-shaped grooves.

[0017] By adopting the technical scheme, one of the slag collecting cylinders in the slag tapping box collects dust in the slag tapping pipe, when the weight of the dust in the slag collecting cylinder reaches a preset value, the gravity sensor sends a signal to drive the driving member to drive the bearing disc to rotate by a certain angle, so that another slag collecting cylinder is positioned corresponding to the slag tapping pipe, and the empty slag collecting cylinder collects dust again.

[0018] Optionally, a cleaning scraping strip is connected to one side of the transmission plate away from the rotating chain plate belt, and the cleaning scraping strip is arranged in abutment with an inner wall of the transmission pipe.

[0019] By adopting the technical scheme, the cleaning scraping strip helps the transmission plate to more fully transport dust, and reduces the possibility that the dust adheres to the inner wall of the transmission pipe.

[0020] Optionally, a heating plate is arranged on a bottom wall of the transmission pipe.

[0021] By adopting the technical scheme, the heating plate dries the damp dust material, and facilitates the transmission plate to scrape the lumpy dust from the inner wall of the transmission pipe for cleaning.

[0022] In summary, the present application has at least one of the following beneficial technical effects:

[0023] 1. Through the cooperation of the vibrating screen, the storage box, the first screen plate and the second screen plate, the rapid screening of mineral powder is achieved, which can improve the screening efficiency of mineral powder and reduce the dust pollution generated during the screening process.

[0024] 2. The installation of the dust collection fan reduces the possibility of dust clogging the bellows;

[0025] 3. The cleaning scraper helps the conveyor plate to transfer dust more effectively, reducing the possibility of dust adhering to the conveyor pipe. Attached Figure Description

[0026] Figure 1 This is a schematic diagram illustrating the structure of a high-efficiency mineral powder vibrating screen according to an embodiment of this application.

[0027] Figure 2 This is a partial cross-sectional view in the embodiments of this application used to illustrate the internal structure of the transmission tube and the storage box.

[0028] Figure 3 This is a partial cross-sectional view used to illustrate the dust collection component in the embodiments of this application.

[0029] Figure 4 yes Figure 2 Enlarged view of part A in the middle.

[0030] Explanation of reference numerals in the attached drawings: 1. Vibrating screen disc; 101. Feed hopper; 102. Cover plate; 103. Discharge port; 2. Storage box; 21. Feed inlet; 22. Sealing rubber ring; 3. Supporting steel frame; 31. Lifting rod; 32. Lifting spring; 4. Dust collection assembly; 41. Dust collection fan; 42. Dust blowing pipe; 43. Dust collection motor; 44. Transmission pipe; 45. Rotating roller; 46. Rotating chain belt; 47. Transmission plate; 471. Dovetail groove; 48. Cleaning scraper; 481. Dovetail strip; 5. Slag discharge assembly; 51. 52. Slag discharge box; 53. Slag discharge motor; 54. Rotating shaft; 55. Supporting disc; 56. Gravity sensor; 57. Slag collection cylinder; 58. Rotating box door; 59. Placement fan-shaped trough; 6. First screen plate; 7. Second screen plate; 8. First collection trough; 9. Second collection trough; 10. First guide plate; 11. Second guide plate; 12. Corrugated pipe; 13. Dust suppression manifold; 14. Dust suppression nozzle; 15. Water supply pipe; 16. Dust suppression water tank; 17. Water pump; 18. Slag discharge pipe; 19. Vibration motor; 20. Heating plate. Detailed Implementation

[0031] The following is in conjunction with the appendix Figures 1-4 This application will be further described in detail below. Embodiments of this application provide a high-efficiency vibrating screen for mineral powder, which achieves high screening efficiency for mineral powder and reduces dust pollution generated during the screening process.

[0032] Reference Figure 1 A high-efficiency ore powder vibrating screen includes a vibrating screen disc 1, a receiving box 2, a support steel frame 3, a dust collection assembly 4, and a slag discharge assembly 5. The support steel frame 3 is provided with a plurality of lifting rods 31 for lifting the vibrating screen disc 1, the end of the lifting rod 31 is provided with a lifting spring 32, the bottom end of the lifting spring 32 is connected with the vibrating screen disc 1, the vibrating screen disc 1 is inclined and lifted on the support steel frame 3 through the lifting rod 31 and the lifting spring 32, and a vibrating motor 19 is connected to the vibrating screen disc 1.

[0033] Reference Figure 1 And Figure 2 The top surface of the higher end of the vibrating screen disc 1 is connected with a feeding hopper 101 in communication, the top end opening of the feeding hopper 101 is rotatably connected with a cover plate 102. The lower end of the vibrating screen disc 1 is provided with a discharge port 103, the first screen plate 6 and the second screen plate 7 are arranged in parallel along the length direction of the vibrating screen disc 1, and the first screen plate 6 is located above the second screen plate 7. A plurality of screen holes are formed in the first screen plate 6 and the second screen plate 7, the aperture of the screen holes in the first screen plate 6 is larger than that of the screen holes in the second screen plate 7, and the second screen plate 7 is arranged flush with the bottom edge of the discharge port 103.

[0034] Reference Figure 1 And Figure 2 The receiving box 2 is provided with a feeding port 21 for the vibrating screen disc 1 to pass in, a sealing rubber ring 22 is connected to the inner ring wall of the feeding port 21, the vibrating screen disc 1 extends into the receiving box 2 through the feeding port 21, and the sealing rubber ring 22 abuts against the outer wall of the vibrating screen disc 1. The first receiving groove 8 and the second receiving groove 9 are placed in the receiving box 2, the end of the first screen plate 6 extending into the receiving box 2 is inclined connected with the first guide plate 10, the end of the second screen plate 7 extending into the receiving box 2 is inclined connected with the second guide plate 11, the first guide plate 10 extends above the first receiving groove 8, and the second guide plate 11 extends above the second receiving groove 9.

[0035] Reference Figures 2-4The bottom surface of the lower end of the vibrating screen plate 1 is connected with a corrugated pipe 12 in communication. The dust collecting assembly 4 comprises a dust collecting fan 41, a dust blowing pipe 42, a dust collecting motor 43, a conveying pipe 44, a rotating roller 45, a rotating chain belt 46, a conveying plate 47 and a cleaning scraper 48. The conveying pipe 44 is horizontally arranged below the vibrating screen plate 1, and the top wall of the length direction end of the conveying pipe 44 is connected with the bottom end of the corrugated pipe 12 in communication. The rotating roller 45 is horizontally and parallel arranged in the conveying pipe 44, and two rotating rollers 45 are arranged at the two ends of the length direction of the conveying pipe 44 respectively. The rotating chain belt 46 is sleeved on the two rotating rollers 45. The dust collecting motor 43 is connected to the outer wall of the conveying pipe 44, and the output shaft of the dust collecting motor 43 is in transmission connection with one of the rotating shafts 53. The conveying plate 47 is connected with a plurality of conveying plates 47 at equal intervals on the side of the rotating chain belt 46 away from the rotating roller 45, and the conveying plate 47 is arranged along the width direction of the rotating chain belt 46. The cleaning scraper 48 is arranged on the side edge of the conveying plate 47 away from the rotating chain belt 46, and the cleaning scraper 48 is arranged in close contact with the inner wall of the conveying pipe 44. The side edge of the conveying plate 47 close to the connecting strip is provided with a dovetail groove 471, and the cleaning scraper 48 is provided with a dovetail strip 481 corresponding to the dovetail groove 471, and the dovetail strip 481 is embedded in the dovetail groove 471.

[0036] Referring to Figure 1 and Figure 3 , the outer side of the conveying pipe 44 is provided with a dust falling collecting pipe 13, and a plurality of dust falling nozzles 14 are arranged on the dust falling collecting pipe 13 along the length direction, and the dust falling nozzles 14 extend into the conveying pipe 44. The dust falling collecting pipe 13 is provided with a water conveying pipe 15 in communication, and the end of the water conveying pipe 15 away from the dust falling collecting pipe 13 is provided with a dust falling water tank 16 in communication, and the water conveying pipe 15 is provided with a water conveying pump 17. The bottom surface of the end of the conveying pipe 44 away from the corrugated pipe 12 is provided with a slag discharging pipe 18 in communication. The bottom surface of the conveying pipe 44 is provided with a heating plate 20.

[0037] Referring to Figure 1 and Figure 2 , the slag discharging assembly 5 comprises a slag discharging box 51, a slag discharging motor 52, a rotating shaft 53, a supporting disc 54, a gravity sensor 55 and a slag collecting cylinder 56. The slag discharging box 51 is in the shape of a cylinder, the top end of the slag discharging box 51 is connected with the bottom end of the slag discharging pipe 18 in communication, and the slag discharging box 51 is rotatably connected with a rotating box door 57. The rotating shaft 53 is coaxially arranged in the slag discharging box 51, one end of the rotating shaft 53 extends out of the slag discharging box 51 and is in transmission connection with the output shaft of the slag discharging motor 52, and the slag discharging motor 52 is connected to the slag discharging box 51. The supporting disc 54 is coaxially connected to the bottom end of the rotating shaft 53, and the top surface of the supporting disc 54 is provided with a plurality of placing fan-shaped grooves 58 at equal angles, and the gravity sensor 55 is arranged at the bottom surface of each placing fan-shaped groove 58. The slag collecting cylinder 56 is arranged in each placing fan-shaped groove 58, and one of the slag collecting cylinders 56 is arranged corresponding to the position of the slag discharging pipe 18.

[0038] Referring to Figure 1 and Figure 2 When the screening of the ore powder is carried out, the cover plate 102 is opened to pour the material into the vibrating screen tray 1 through the feeding hopper 101. The vibrating motor 19 is started to drive the vibrating screen tray 1 to vibrate, and the first screen plate 6 and the second screen plate 7 simultaneously screen the material in two stages to divide the material into two different diameters. The material with a larger diameter falls into the first receiving groove 8 under the guidance of the first guide plate 10, and the material with a smaller diameter falls into the second receiving groove 9 under the guidance of the second guide plate 11. The sealing rubber ring 22 is arranged to reduce the possibility of dust in the receiving box 2 floating into the external environment, and to avoid the vibrating screen tray 1 directly contacting the feeding port 21 to damage the receiving box 2.

[0039] Referring to Figure 1 , Figure 3 and Figure 4 The screened dust enters the transmission pipe 44 through the corrugated pipe 12. The dust collection fan 41 is started to blow dust to the direction of the transmission pipe 44 through the dust blowing pipe 42. The dust enters the transmission pipe 44 under the action of air pressure, reducing the possibility of dust blocking the corrugated pipe 12. The dust collection motor 43 is started to drive the rotating roller 45 and the rotating chain plate belt 46 to rotate. The transmission plates 47 arranged on the rotating chain plate belt 46 start to move to transport the dust in the transmission pipe 44. The arrangement of the cleaning scraper 48 helps the transmission plates 47 to better transport the dust in the transmission pipe 44, reducing the possibility of dust adhering to the inner wall of the transmission pipe 44. The arrangement of the dovetail strip 481 and the dovetail groove 471 realizes the detachable connection of the transmission plate 47 and the cleaning scraper 48. The water pump 17 is started to spray the water in the dust-settling water tank 16 into the transmission pipe 44 through the water conveying pipe 15, the dust-settling manifold 13 and the dust-settling spray heads 14, so that the dust in the transmission pipe 44 settles down, reducing the possibility of the dust flowing back to the vibrating screen tray 1.

[0040] Referring to Figure 1 and Figure 2 After a period of transmission and dust settling, a small amount of moist dust will adhere to the inner wall of the transmission pipe 44. For the moist dust adhering to the inner wall of the transmission pipe 44, the heating plate 20 is started to heat and dry it. The dried dust block is scraped off by the cleaning scraper 48. The dust falls into the corresponding dust collection cylinder 56 in the slag discharge tank 51 through the slag discharge pipe 18 for collection. When the dust in the dust collection cylinder 56 reaches a certain amount, the gravity sensor 55 sends a signal to the slag discharge motor 52. The slag discharge motor 52 drives the rotating shaft 53 and the supporting disc 54 to rotate, so that the other dust collection cylinder 56 is positionally corresponding to the slag discharge pipe 18. The rotating tank door 57 is opened to take out the corresponding dust collection cylinder 56 for slag discharge, realizing the uninterrupted collection of the dust.

[0041] The implementation principle of the high-efficiency ore powder vibrating screen in the embodiment of the application is as follows: when the ore powder is screened, the cover plate 102 is opened, the material is thrown into the vibrating screen disc 1 through the feeding hopper 101. The vibrating motor 19 is started to drive the vibrating screen disc 1 to vibrate and screen the material. The screened dust is introduced into the transmission pipe 44 through the corrugated pipe 12, the dust collecting motor 43 drives the transmission plate 47 to move, and the dust in the transmission pipe 44 is transported. The water pump 17 is started, the water in the dust falling water tank 16 is sprayed into the transmission pipe 44, and the dust in the transmission pipe 44 is settled.

[0042] The dust falls into the corresponding slag collecting cylinder 56 in the slag discharging tank 51 through the slag discharging pipe 18 and is collected. When the dust in the slag collecting cylinder 56 reaches a certain amount, the slag discharging motor 52 drives the rotating shaft 53 and the supporting disc 54 to rotate, so that the other slag collecting cylinder 56 is positionally corresponding to the slag discharging pipe 18.

[0043] The above are preferred embodiments of the application, and are not intended to limit the protection scope of the application. Therefore, any equivalent changes made on the structure, shape and principle of the application should be covered within the protection scope of the application.

Claims

1. A high efficiency mineral fines shaker characterized by: The utility model provides a kind of vibrating screen, including vibrating screen tray (1), receiving box (2), first sieve plate (6) and second sieve plate (7), the top surface of the length direction one end of vibrating screen tray (1) is provided with inlet hopper (101) in communication, other end is provided with discharge port (103), vibrating screen tray (1) is arranged obliquely, the opening end of vibrating screen tray (1) is obliquely extended to receiving box (2) in, vibrating screen tray (1) is provided with vibrating motor (19), first sieve plate (6) and second sieve plate (7) are arranged in vibrating screen tray (1) along the length direction of receiving box (2) in parallel, first sieve plate (6) is arranged above second sieve plate (7), second sieve plate (7) is flush with the bottom edge of discharge port (103) and is arranged, sieve hole is formed on first sieve plate (6) and second sieve plate (7), the aperture of sieve hole on first sieve plate (6) is greater than the aperture of sieve hole on second sieve plate (7), the end of first sieve plate (6) that extends into receiving box (2) is obliquely provided with first guide plate (10), the end of second sieve plate (7) that extends into receiving box (2) is obliquely provided with second guide plate (11), first receiving groove (8) and second receiving groove (9) are provided in receiving box (2), first receiving groove (8) is correspondingly provided with first guide plate (10), second receiving groove (9) is correspondingly provided with second guide plate (11), the lower end of vibrating screen tray (1) is connected with bellows (12) in communication, bellows (12) is connected with transmission pipe (44), dust collection fan (41) is provided on transmission pipe (44), dust blowing pipe (42) is provided on dust collection fan (41) in communication, one end of dust blowing pipe (42) extends into bellows (12) and extends towards the direction of transmission pipe (44), dust fall collecting pipe (13) is provided on one side of transmission pipe (44), a plurality of dust fall nozzles (14) are provided on dust fall collecting pipe (13) in communication, dust fall nozzle (14) extends into transmission pipe (44), water supply pipe (15) is provided on dust fall collecting pipe (13) in communication, dust fall water tank (16) is provided on the end of water supply pipe (15) away from dust fall collecting pipe (13) in communication, water supply pump (17) is provided on water supply pipe (15).

2. The high efficiency mineral powder vibrating screen according to claim 1, characterized in that: The bottom end of bellows (12) is provided with dust collection assembly (4), the dust collection assembly (4) includes transmission pipe (44), rotating roller (45), rotating chain plate belt (46) and transmission plate (47), two rotating rollers (45) are arranged in parallel in transmission pipe (44), rotating chain plate belt (46) is simultaneously sleeved on two rotating rollers (45), driving member for driving rotating roller (45) rotation is provided on transmission pipe (44), a plurality of transmission plates (47) are connected along the width direction on the side of rotating chain plate belt (46) away from rotating roller (45), one side of transmission plate (47) is arranged in close contact with the inner wall of transmission pipe (44).

3. The high efficiency mineral powder vibrating screen according to claim 2, characterized in that: The slag discharge assembly (5) is arranged at the end of the transmission pipe (44) away from the bellows (12), and comprises a slag discharge pipe (18), a slag discharge box (51) and a slag collecting cylinder (56). The slag discharge pipe (18) is arranged on the bottom surface of the end of the transmission pipe (44) away from the bellows (12), and the bottom end of the slag discharge pipe (18) is in communication with the slag discharge box (51). The slag collecting cylinder (56) is arranged in the slag discharge box (51), and a rotating box door (57) is rotatably arranged on the slag discharge box (51). The open end of the slag collecting cylinder (56) is arranged in correspondence with the open end of the slag discharge pipe (18).

4. The high efficiency mineral powder vibrating screen according to claim 3, characterized in that: A supporting disc (54) is coaxially arranged in the slag discharge box (51). A plurality of placement fan-shaped grooves (58) are equiangularly and spacedly arranged on the top surface of the supporting disc (54), and one of the slag collecting cylinders (56) is arranged in each of the placement fan-shaped grooves (58). A driving member for driving the supporting disc (54) is arranged on the slag discharge box (51), and a gravity sensor (55) is arranged on the bottom wall of each of the placement fan-shaped grooves (58).

5. The high efficiency mineral powder vibrating screen according to claim 2, characterized in that: A cleaning scraper (48) is connected to the side of the transmission plate (47) away from the rotating chain plate belt, and the cleaning scraper (48) is arranged in close contact with the inner wall of the transmission pipe (44).

6. The high efficiency mineral powder vibrating screen according to claim 1, characterized in that: A heating plate (20) is arranged on the bottom wall of the transmission pipe (44).

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