A feeding device for discharging mineral powder mill

Abstract

The present invention discloses a feeding device for unloading a mineral grinding mill in the field of ore processing technology, comprising a grinding mill, a feeding device and a transfer mechanism, wherein the feeding device comprises a holding tank, wherein the upper and lower ends of the holding tank are respectively provided with a feeding port and a discharging port, and the holding tank is arranged below the grinding mill; a screening mechanism, wherein the screening mechanism is arranged in the holding tank, and the screening mechanism is used for screening the powder discharged from the grinding mill; a discharging mechanism, wherein the discharging mechanism is arranged in the lower half of the holding tank, and the discharging mechanism is used for controlling the discharging speed of the discharging port, so as to keep a layer of powder deposited at the bottom of the holding tank; the present invention performs powder screening in a sealed holding tank, and controls the discharging speed of the discharging port in combination with the discharging mechanism, so that a layer of powder for preventing dust from overflowing is deposited at the bottom of the holding tank, so that the equipment can effectively solve the dust problem generated while screening and transferring the mineral powder.

Description

Technical Field

[0001] The invention relates to the technical field of ore processing, in particular to a feeding device for unloading a mineral grinding machine. Background Art

[0002] Some ores need to be ground into powder by a mineral grinder before production and processing, and after powdering, in order to ensure the quality of the powder, the powder also needs to be screened.

[0003] When the mineral grinding machine grinds the mineral into powder and transports the powder to the transfer equipment through its own unloading mechanism, the powder needs to be screened. In this process, an inclined and continuously oscillating screen is often used to complete the screening. The further oscillating screen will collide with the powder, causing the powder to stir up a lot of dust, resulting in air pollution in the working environment and waste of powder materials.

[0004] Based on this, the present invention designs a feeding device for unloading a mineral grinding mill to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a feeding device for unloading a mineral grinding mill, so as to solve the problem proposed in the above background technology that when the mineral grinding mill grinds the mineral into powder and transports the powder to the transfer equipment through its own unloading mechanism, the powder needs to be screened once. In this process, an inclined and continuously oscillating screen is often used to complete the screening. The further oscillating screen will collide with the powder, causing the powder to stir up a large amount of dust, resulting in air pollution in the working environment and waste of powder materials.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a feeding device for discharging a mineral grinding mill, comprising a grinding mill, a feeding device and a transfer mechanism, the feeding device comprising a material holding tank, the upper and lower ends of the material holding tank are respectively provided with a feed port and a discharge port, the material holding tank is arranged below the grinding mill, the discharge port of the grinding mill is connected with the feed port, the transfer mechanism is arranged below the material holding tank, and the discharge port is located above the feeding part of the transfer mechanism;

[0007] A screening mechanism, which is arranged in the material holding tank and is used to screen the powder discharged from the grinding mill;

[0008] The discharge mechanism is arranged at the lower half of the material storage tank, and is used to control the discharge speed of the discharge port to keep a layer of powder deposited at the bottom of the material storage tank.

[0009] As a further solution of the present invention, the screening mechanism includes a mounting ring, the mounting ring is arranged on the inner wall of the material holding tank, and a screen is arranged on the mounting ring.

[0010] As a further solution of the present invention, the discharge mechanism includes a conical cylinder, which is fixedly connected to the inner wall of the bottom of the material storage tank, a driving motor is arranged below the material storage tank, and a first transmission shaft is arranged above the driving motor, the first transmission shaft vertically passes through the bottom of the material storage tank to the top of the conical cylinder, and a plurality of first scrapers are vertically slidably connected to the side wall of the first transmission shaft, the lower end of the first scraper is in contact with the conical surface of the upper end of the conical cylinder, the discharge port is located between the side wall of the conical cylinder and the inner wall of the material storage tank, and the ends of the first scrapers are vertically slidably connected A second scraper is connected, and the end of the second scraper is in contact with the inner wall of the material holding tank. The lower end of the material holding tank is provided with a mounting groove at the position of the discharge port. A baffle is slidably connected in the mounting groove, and the baffle can block the discharge port. The baffle is connected to a speed regulating mechanism; the speed regulating mechanism can move the baffle according to the resistance encountered by the first scraper and the second scraper, and control the degree of blocking of the discharge port by moving the baffle; the second scraper is connected to a control mechanism, and the control mechanism can control the second scraper to slide vertically and can control the baffle to no longer block the discharge port.

[0011] As a further solution of the present invention, the screen is rotatably connected to the mounting ring, and the screen is fixedly connected to the upper end of the first transmission shaft.

[0012] As a further solution of the present invention, the speed regulating mechanism includes a second transmission shaft, the second transmission shaft is fixedly connected to the output shaft of the driving motor, the upper end of the second transmission shaft is fixedly connected to a connecting rod, the upper end of the second transmission shaft is elastically rotatably connected to the first turntable, the upper end of the first turntable is fixedly connected to a sliding rod, the sliding rod is vertically slidably connected to the first transmission shaft, the lower end of the first turntable is fixedly connected to a protrusion, the side wall of the second transmission shaft is vertically elastically slidably connected to the second turntable, the second turntable is located at the projection of the protrusion and is vertically penetrated by a through groove, the second turntable has a tendency to move upward, the protrusion is located in the through groove, and the lower end of the first transmission shaft A vertical avoidance groove is provided, the connecting rod is movably connected to the avoidance groove, the avoidance groove is vertically provided with a fan-shaped groove, the side wall of the connecting rod is fixedly connected to a limit block, the limit block is located in the fan-shaped groove, and the limit block cooperates with the fan-shaped groove to limit the maximum rotation angle of the first transmission shaft relative to the second transmission shaft; the lower end of the material holding tank is fixedly connected to a slide rail, the slide rail is vertically elastically slidably connected to a horizontally arranged trigger plate, the trigger plate always has a tendency to move upward, the right end of the trigger plate is located below the second turntable, the right end of the baffle is fixedly connected to a guide rail with a track extending to the lower left, the lower left of the trigger plate is fixedly connected to a slide column, and the slide column is slidably connected to the guide rail.

[0013] As a further scheme of the present invention, the control mechanism includes a screw rod vertically fixedly connected to the upper end of the connecting rod, a trigger ring is fixedly connected to the inner wall of the avoidance groove, the trigger ring is threadedly connected to the screw rod, the upper end of the second scraper is commonly fixedly connected to a connecting ring, the upper end of the connecting ring is fixedly connected to a push rod, the push rod passes through the mounting ring and the material tank in sequence upward and extends to the top of the material tank, a cylinder is fixedly connected above the material tank, the cylinder is fixedly connected to the push rod, the cylinder is used to control the vertical displacement of the push rod, the side wall of the push rod is located at the upper end of the mounting ring and is fixedly connected to a limiting ring, the discharge port of the grinding mill is externally connected to a sensor, and the sensor can control the cylinder according to the discharge progress of the discharge port.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention screens the powder in a sealed container and controls the discharge speed of the discharge port in combination with a discharge mechanism, so that a layer of powder is deposited at the bottom of the container to prevent dust from overflowing, so that the equipment can effectively solve the dust problem while screening and transporting mineral powder.

[0016] 2. The present invention uses a conical cylinder and an inner wall of a material storage tank to form an annular groove for accommodating a powder layer, so that the device has a powder layer of minimum thickness to prevent dust from overflowing from the discharge port, making the use of the device more stable.

[0017] 3. A transmission shaft rotates and drives the screen to rotate, so that the screen can perform screening work better and avoid the mesh of the screen being blocked. At the same time, through the rotation, the unqualified powder particles screened at the upper end of the screen are subjected to centrifugal force and then concentrated toward the mounting ring to prevent the unqualified powder particles from hindering the screening work of the screen. At the same time, the unqualified powder particles are easier to clean after being concentrated. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the present invention removing the pulverizer and the transfer mechanism;

[0020] Figure 3 for Figure 2 Schematic diagram of the cross-section structure;

[0021] Figure 4 for Figure 3 A schematic diagram of the structure enlargement in the middle;

[0022] Figure 5 for Figure 3 Schematic diagram from top view;

[0023] Figure 6 for Figure 5A magnified schematic diagram of the structure at B in the middle;

[0024] Figure 7 It is a schematic diagram of the structure of the first transmission shaft, the second transmission shaft and related components;

[0025] Figure 8 It is a schematic diagram of the half-section structure of the first transmission shaft, the second transmission shaft and related components.

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] Grinding machine 11, transfer mechanism 12, material holding tank 21, feed port 22, discharge port 23, mounting ring 31, screen 32, conical cylinder 41, drive motor 42, first transmission shaft 43, first scraper 44, second scraper 45, mounting groove 46, baffle 47, second transmission shaft 51, connecting rod 52, first turntable 53, slide bar 54, protrusion 55, second turntable 56, through groove 57, avoidance groove 58, fan-shaped groove 59, limit block 510, slide rail 511, trigger plate 512, guide rail 513, slide column 514, screw 61, trigger ring 62, connecting ring 63, push rod 64, cylinder 65, limit ring 66. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-Figure 8 , the present invention provides a technical solution:

[0030] A feeding device for discharging a mineral grinding mill, comprising a grinding mill 11, a feeding device and a transfer mechanism 12, wherein the feeding device comprises a material holding tank 21, wherein the upper and lower ends of the material holding tank 21 are respectively provided with a feed port 22 and a discharge port 23, wherein the material holding tank 21 is arranged below the grinding mill 11, wherein the discharge port of the grinding mill 11 is connected to the feed port 22, wherein the transfer mechanism 12 is arranged below the material holding tank 21, and wherein the discharge port 23 is located above the feeding portion of the transfer mechanism 12;

[0031] A screening mechanism, which is disposed in the material storage tank 21 and is used to screen the powder discharged from the grinding mill 11;

[0032] The discharge mechanism is arranged at the lower half of the material storage tank 21 , and is used to control the discharge speed of the discharge port 23 to keep a layer of powder deposited at the bottom of the material storage tank 21 .

[0033] The mineral powder processed by the grinding mill 11 is discharged from the discharge port of the grinding mill 11 into the material tank 21, and is screened by the screening mechanism in the material tank 21. During this process, the powder is in the material tank 21, and the dust generated during the screening process is also confined in the material tank 21 and cannot overflow. At the same time, under the limitation of the discharge mechanism, a layer of powder is deposited at the bottom of the material tank 21, so that the dust in the material tank 21 cannot overflow from the discharge port 23 due to the hindrance of the deposited powder at the bottom of the material tank 21. Further, the dust generated during the transfer of the mineral powder from the grinding mill 11 is always confined in the material tank 21, and is deposited and discharged in the material tank 21.

[0034] The present invention screens the powder in a sealed material storage tank 21 and controls the discharge speed of the discharge port 23 in combination with a discharge mechanism, so that a layer of powder is deposited at the bottom of the material storage tank 21 to prevent dust from overflowing, so that the equipment can effectively solve the dust problem generated while screening and transporting mineral powder.

[0035] As a further solution of the present invention, the screening mechanism includes a mounting ring 31 , which is disposed on the inner wall of the material holding tank 21 , and a screen 32 is disposed on the mounting ring 31 .

[0036] The mineral powder processed by the grinding mill 11 enters the upper end of the screen 32 through the feed port 22, and the unqualified mineral powder with larger particles is screened out by the screen 32, while the mineral powder with qualified particles passes through the screen 32 and enters the bottom of the screen 32 and is discharged from the discharge port 23.

[0037] As a further solution of the present invention, the discharge mechanism includes a conical cylinder 41, which is fixedly connected to the inner wall of the bottom of the material storage tank 21, and a driving motor 42 is arranged below the material storage tank 21. A first transmission shaft 43 is arranged above the driving motor 42 for transmission, and the first transmission shaft 43 vertically penetrates from the bottom of the material storage tank 21 to the top of the conical cylinder 41. A plurality of first scrapers 44 are vertically slidably connected to the side wall of the first transmission shaft 43, and the lower end of the first scraper 44 is in contact with the conical surface of the upper end of the conical cylinder 41. The discharge port 23 is located between the side wall of the conical cylinder 41 and the inner wall of the material storage tank 21, and the ends of the first scrapers 44 are vertically slidably connected to The second scraper 45, the end of the second scraper 45 is in contact with the inner wall of the material storage tank 21, the lower end of the material storage tank 21 is provided with a mounting groove 46 at the position of the discharge port 23, a baffle 47 is slidably connected in the mounting groove 46, the baffle 47 can block the discharge port 23, and the baffle 47 is connected to a speed regulating mechanism; the speed regulating mechanism can move the baffle 47 according to the resistance encountered by the first scraper 44 and the second scraper 45, and control the degree of blocking of the discharge port 23 by moving the baffle 47; the second scraper 45 is connected to a control mechanism, the control mechanism can control the second scraper 45 to slide vertically and can control the baffle 47 to no longer block the discharge port 23.

[0038] (Before the resistance experienced by the first scraper 44 and the second scraper 45 reaches a threshold value, the baffle 47 completely blocks the discharge port 23, making it impossible for the discharge port 23 to discharge material) The driving motor 42 drives the first scraper 44 and the second scraper 45 to rotate through the first transmission shaft 43, wherein the first scraper 44 repeatedly scrapes the upper end of the conical cylinder 41, so that the powder at the upper end of the conical cylinder 41 falls into the annular groove formed between the side wall of the conical cylinder 41 and the inner wall of the material holding tank 21, and at the same time, the second scraper 45 moves along the upper end of the annular groove, and after the subsequent powder in the annular groove accumulates and protrudes out of the annular groove, the second scraper 45 scrapes the powder in the protruding part of the annular groove, so that the powder in the annular groove is evenly distributed, and after the powder in the annular groove accumulates and protrudes out of the annular groove, the resistance experienced by the second scraper 45 increases significantly. At this time The resistance experienced by the first scraper 44 and the second scraper 45 reaches a threshold value, and the speed regulating mechanism further controls the baffle 47 to release part of the discharge port 23, so that the discharge port 23 can transport powder to the transfer mechanism 12. In this process, if the discharge speed of the discharge port 23 is greater than the amount of qualified powder discharged from the screen 32, the amount of powder under the screen 32 in the storage tank 21 increases, and correspondingly, the resistance experienced by the first scraper 44 and the second scraper 45, and further, the part of the baffle 47 that releases the discharge port 23 increases. Correspondingly, if the discharge speed of the discharge port 23 is less than the amount of qualified powder discharged from the screen 32, the part of the baffle 47 that releases the discharge port 23 decreases, so as to ensure that there is enough powder thickness in the annular groove to hinder the dust and prevent the dust from overflowing from the discharge port 23.

[0039] The present invention forms an annular groove for accommodating a powder layer by cooperating with the inner wall of the material container 21 through the conical cylinder 41, so that the device has a powder layer of minimum thickness to prevent dust from overflowing from the discharge port 23, making the use of the device more stable.

[0040] As a further solution of the present invention, the screen 32 is rotatably connected to the mounting ring 31 , and the screen 32 is fixedly connected to the upper end of the first transmission shaft 43 .

[0041] The first transmission shaft 43 rotates and drives the screen 32 to rotate, so that the screen 32 can perform the screening work better and avoid the mesh of the screen 32 from being blocked. At the same time, through the rotation, the unqualified powder particles screened at the upper end of the screen 32 are subjected to centrifugal force and then concentrated toward the mounting ring 31 to prevent the unqualified powder particles from obstructing the screening work of the screen 32. At the same time, the unqualified powder particles are easier to clean after being concentrated.

[0042] As a further solution of the present invention, the speed regulating mechanism includes a second transmission shaft 51, which is fixedly connected to the output shaft of the driving motor 42, a connecting rod 52 is fixedly connected to the upper end of the second transmission shaft 51, a first turntable 53 is elastically rotatably connected to the upper end of the second transmission shaft 51, a sliding rod 54 is fixedly connected to the upper end of the first turntable 53, the sliding rod 54 is vertically slidably connected to the first transmission shaft 43, a protrusion 55 is fixedly connected to the lower end of the first turntable 53, a second turntable 56 is vertically elastically slidably connected to the side wall of the second transmission shaft 51, a through groove 57 is vertically penetrated through the second turntable 56 at the projection of the protrusion 55, the second turntable 56 has a tendency to move upward, the protrusion 55 is located in the through groove 57, and a avoidance groove 58 is vertically opened at the lower end of the first transmission shaft 43. The connecting rod 52 is movably connected with the avoidance groove 58, and the avoidance groove 58 is vertically provided with a fan-shaped groove 59. The side wall of the connecting rod 52 is fixedly connected with a limit block 510, and the limit block 510 is located in the fan-shaped groove 59. The limit block 510 cooperates with the fan-shaped groove 59 to limit the maximum rotation angle of the first transmission shaft 43 relative to the second transmission shaft 51; the lower end of the material holding tank 21 is fixedly connected with a slide rail 511, and the slide rail 511 is vertically elastically slidably connected with a horizontally arranged trigger plate 512, and the trigger plate 512 always has a tendency to move upward, and the right end of the trigger plate 512 is located below the second turntable 56, and the right end of the baffle 47 is fixedly connected with a guide rail 513 whose track extends to the lower left, and the lower left of the trigger plate 512 is fixedly connected with a slide column 514, and the slide column 514 is slidably connected to the guide rail 513.

[0043] The driving motor 42 drives the first rotating disk 53 to rotate via the second transmission shaft 51 (using the elastic force of the elastic connection between the second transmission shaft 51 and the first rotating disk 53). Further, the first rotating disk 53 drives the first transmission shaft 43 to rotate via the sliding rod 54. During this process, as the resistance to the first scraper 44 and the second scraper 45 increases, the first transmission shaft 43 gradually overcomes the elastic force of the elastic connection between the second transmission shaft 51 and the first rotating disk 53, and the first transmission shaft 43 gradually rotates relative to the second transmission shaft 51. Further, the first rotating disk 53 and the second rotating disk 56 rotate. At the same time, the protrusion 55 at the lower end of the first turntable 53 gradually squeezes the second turntable 56 downward, so that the second turntable 56 gradually moves downward. Further, the second turntable 56 drives the trigger plate 512 to move downward, and the trigger plate 512 drives the slide column 514 to move downward. During the downward movement of the slide column 514, the slide rail 511 is squeezed to the right, so that the slide rail 511 drives the baffle 47 to move to the right, and the discharge port 23 is gradually released. Correspondingly, as the resistance to the first scraper 44 and the second scraper 45 increases, the baffle 47 moves to the right more, the degree of release of the discharge port 23 increases, and the discharge speed of the equipment increases.

[0044] As a further scheme of the present invention, the control mechanism includes a screw 61 vertically fixedly connected to the upper end of the connecting rod 52, a trigger ring 62 is fixedly connected to the inner wall of the avoidance groove 58, and the trigger ring 62 is threadedly connected to the screw 61, and the upper ends of the second scraper 45 are jointly fixedly connected to a connecting ring 63, and the upper end of the connecting ring 63 is fixedly connected to a push rod 64, and the push rod 64 upwardly penetrates the mounting ring 31 and the material tank 21 in sequence and extends to the top of the material tank 21, and a cylinder 65 is fixedly connected above the material tank 21, and the cylinder 65 is fixedly connected to the push rod 64, and the cylinder 65 is used to control the vertical displacement of the push rod 64, and the side wall of the push rod 64 is located at the upper end of the mounting ring 31 and is fixedly connected to a limiting ring 66, and the discharge port of the grinding mill 11 is externally connected to a sensor, and the sensor can control the cylinder 65 according to the discharge progress of the discharge port.

[0045] When the discharge port of the grinding mill 11 is discharging, the cylinder 65 controls the push rod 64 to move to the uppermost end. At this time, the lower end of the second scraper 45 is flush with the upper end of the annular groove. As the first transmission shaft 43 rotates relative to the second transmission shaft 51, the corresponding limit ring 66 rotates relative to the screw 61, so that the limit ring 66 moves downward. Further, the limit ring 66 drives the first transmission shaft 43 to move downward. In this process, the equipment operates normally. When the discharge port of the grinding mill 11 stops discharging, it is necessary to discharge all the powder in the material tank 21. At this time, the cylinder 65 controls the push rod 64 to move to At the lower end, the push rod 64 controls the second scraper 45 and the mounting ring 31 to move downward respectively through the connecting ring 63 and the limiting ring 66; the downward movement of the second scraper 45 can effectively scrape the powder in the annular groove, so that all the powder in the annular groove can be discharged from the discharge port 23; the downward movement of the mounting ring 31 drives the first transmission shaft 43, and then drives the limiting ring 66 to move downward, and further the limiting ring 66 rotates relative to the second transmission shaft 51, and the corresponding first transmission shaft 43 rotates relative to the second transmission shaft 51, so that the baffle 47 completely releases the discharge port 23, and the equipment discharges at the maximum rate.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A feeding device for discharging a mineral grinding mill, comprising a grinding mill (11), a feeding device and a transfer mechanism (12), characterized in that: The feeding device comprises a material holding tank (21), wherein the material holding tank (21) is provided with a feed port (22) and a discharge port (23) at the upper and lower ends thereof respectively, the material holding tank (21) is arranged below the grinding mill (11), the discharge port of the grinding mill (11) is communicated with the feed port (22), the transfer mechanism (12) is arranged below the material holding tank (21), and the discharge port (23) is located above the feeding portion of the transfer mechanism (12); A screening mechanism, the screening mechanism being arranged in the material holding tank (21), and being used for screening powder discharged from the grinding mill (11); A discharge mechanism, the discharge mechanism being arranged at the lower half of the material storage tank (21), the discharge mechanism being used to control the discharge speed of the discharge port (23) so as to keep a layer of powder deposited at the bottom of the material storage tank (21); The screening mechanism comprises a mounting ring (31), the mounting ring (31) being arranged on the inner wall of the material holding tank (21), and a screen (32) being arranged on the mounting ring (31); The discharge mechanism comprises a conical cylinder (41), wherein the conical cylinder (41) is fixedly connected to the inner wall of the bottom of the material storage tank (21), a driving motor (42) is arranged below the material storage tank (21), a first transmission shaft (43) is arranged above the driving motor (42), the first transmission shaft (43) vertically penetrates from the bottom of the material storage tank (21) to the top of the conical cylinder (41), a plurality of first scrapers (44) are vertically slidably connected to the side wall of the first transmission shaft (43), the lower ends of the first scrapers (44) are in contact with the conical surfaces of the upper ends of the conical cylinder (41), the discharge port (23) is located between the side wall of the conical cylinder (41) and the inner wall of the material storage tank (21), and the ends of the first scrapers (44) are vertically slidably connected to the second scrapers (45). The end of the second scraper (45) is in contact with the inner wall of the material storage tank (21); the lower end of the material storage tank (21) is provided with a mounting groove (46) at the position of the material discharge port (23); a baffle (47) is slidably connected in the mounting groove (46); the baffle (47) is capable of blocking the material discharge port (23); the baffle (47) is connected to a speed regulating mechanism; the speed regulating mechanism is capable of moving the baffle (47) according to the resistance exerted on the first scraper (44) and the second scraper (45), and controlling the degree of blocking of the material discharge port (23) by moving the baffle (47); the second scraper (45) is connected to a control mechanism, and the control mechanism is capable of controlling the second scraper (45) to slide vertically and controlling the baffle (47) to no longer block the material discharge port (23); The screen (32) is rotatably connected to the mounting ring (31), and the screen (32) is fixedly connected to the upper end of the first transmission shaft (43); The speed regulating mechanism comprises a second transmission shaft (51), the second transmission shaft (51) being fixedly connected to an output shaft of a driving motor (42), a connecting rod (52) being fixedly connected to an upper end of the second transmission shaft (51), a first rotating disk (53) being elastically rotatably connected to an upper end of the second transmission shaft (51), a sliding rod (54) being fixedly connected to an upper end of the first rotating disk (53), the sliding rod (54) being vertically slidably connected to the first transmission shaft (43), a convex block (55) being fixedly connected to a lower end of the first rotating disk (53), a second rotating disk (56) being vertically elastically slidably connected to a side wall of the second transmission shaft (51), a through groove (57) being vertically penetrated through a projection of the convex block (55), the second rotating disk (56) having a tendency to move upward, the convex block (55) being located in the through groove (57), a avoiding groove (58) being vertically opened at a lower end of the first transmission shaft (43), the connecting rod (52) The connecting rod (52) is movably connected to the avoidance groove (58), the avoidance groove (58) is vertically provided with a fan-shaped groove (59), the side wall of the connecting rod (52) is fixedly connected to a limit block (510), the limit block (510) is located in the fan-shaped groove (59), and the limit block (510) cooperates with the fan-shaped groove (59) to limit the maximum rotation angle of the first transmission shaft (43) relative to the second transmission shaft (51); the lower end of the material storage tank (21) is fixedly connected to a slide rail (511), the The slide rail (511) is vertically elastically slidably connected to a trigger plate (512) arranged horizontally, the trigger plate (512) always has a tendency to move upward, the right end of the trigger plate (512) is located below the second rotating disk (56), the right end of the baffle plate (47) is fixedly connected to a guide rail (513) whose track extends to the lower left, the lower left of the trigger plate (512) is fixedly connected to a slide column (514), and the slide column (514) is slidably connected to the guide rail (513).

2. A feeding device for discharging a mineral grinding mill according to claim 1, characterized in that: The control mechanism comprises a screw rod (61) vertically fixedly connected to the upper end of the connecting rod (52); a trigger ring (62) is fixedly connected to the inner wall of the avoidance groove (58); the trigger ring (62) is threadedly connected to the screw rod (61); the upper end of the second scraper (45) is commonly fixedly connected to a connecting ring (63); the upper end of the connecting ring (63) is fixedly connected to a push rod (64); the push rod (64) sequentially passes through the mounting ring (31) and the material storage tank (21) upwards and extends to A cylinder (65) is fixedly connected to the top of the material storage tank (21), the cylinder (65) is fixedly connected to the push rod (64), the cylinder (65) is used to control the vertical displacement of the push rod (64), the side wall of the push rod (64) is located at the upper end of the mounting ring (31) and is fixedly connected to a limit ring (66), and the discharge port of the grinding mill (11) is externally connected to a sensor, and the sensor can control the cylinder (65) according to the discharge progress of the discharge port.

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