Mineral powder feeding device

Abstract

The utility model discloses a mineral powder feeding device, which belongs to the technical field of hydrometallurgy and comprises a hopper, a stock bin, an inserting plate and a hook. The stock bin comprises a first side plate, a second side plate and an abutting part; a notch is formed in the first side plate, and one end of the insertion plate obliquely penetrates through the notch to be placed on the abutting part. The inserting plate is obliquely inserted into the stock bin to block the stock bin, then the stock bin is filled with mineral powder in a mineral powder storage workshop, after filling of the mineral powder is completed, the mineral powder feeding device is transferred into a pulping workshop, and the inserting plate is pulled out again through a hoisting assembly in the pulping workshop for feeding; the insertion plate bears the weight of the mineral powder, so that the cover plate at the bottom of the stock bin is easy to open, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrometallurgy, in particular to a mineral powder feeding device. Background Art

[0002] In the current market environment, as the mainstream production method in the metallurgical chemical industry, the main production method of hydrometallurgy is to carry out a temperature-raising reaction after combining the treated raw ore with acid. In order to accelerate the reaction speed, reduce the reaction time, and increase the output, the main treatment method for the raw ore is to make powder pulp. Therefore, this process involves the feeding and pulping process of the raw ore, and the fed raw ore powder needs to be transported from another place and then fed.

[0003] During the transportation process, the mineral powder needs to be first loaded into a silo and then transported to the required workshop for feeding and hydrometallurgical pulping.

[0004] The cover plate at the bottom of the existing feeding device is time-consuming and laborious to open due to the heavy pressure of the mineral powder. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a mineral powder feeding device, in which the cover plate can be opened time-saving and labor-saving.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] A mineral powder feeding device includes a hopper, a silo, a plug board, and a hook;

[0008] The silo is fixedly arranged at the bottom of the hopper;

[0009] The silo includes a first side plate, a second side plate, and an abutting part;

[0010] The first side plate and the second side plate are arranged oppositely, a notch is formed on the first side plate, and one end of the abutting part is fixedly arranged on the inner wall of the second side plate;

[0011] One end of the plug board is obliquely passed through the notch and placed on the abutting part for blocking the falling of the mineral powder in the silo, the other end of the plug board extends outside the first side plate, and the hook is fixedly arranged at the end of the other end of the plug board.

[0012] In a possible implementation manner, the top of the other end of the abutting part is provided with an upwardly convex arc, and the bottom of the one end of the plug board is provided with a downwardly convex arc.

[0013] In a possible implementation manner, the number of the abutting parts is multiple, and the multiple abutting parts are spaced and arranged on the inner wall of the second side plate.

[0014] In one possible implementation, the ore powder feeding device further includes an upper roller group and a lower roller group;

[0015] The upper roller group is arranged on the inner wall of the top of the notch, the lower roller group is arranged on the inner wall of the bottom of the notch, and the plug plate passes through between the upper roller group and the lower roller group.

[0016] In one possible implementation, the ore powder feeding device further includes an upper baffle and a lower baffle;

[0017] One end of the upper baffle is fixed at a first position on the inner wall of the first side plate, and the other end of the upper baffle extends to the upper surface of the plug plate;

[0018] One end of the lower baffle is fixed at a second position on the inner wall of the first side plate, and the other end of the lower baffle extends to the lower surface of the plug plate, and the plug plate passes through between the upper baffle and the lower baffle.

[0019] In one possible implementation, the ore powder feeding device further includes a support member;

[0020] The support member includes a support rod and a pulley;

[0021] One end of the support rod is fixed at a third position on the inner wall of the first side plate, the pulley is arranged at the end of the other end of the support rod, and the pulley abuts against the lower surface of the plug plate.

[0022] In one possible implementation, the number of the support members is multiple, and the multiple support members are arranged at intervals on the inner wall of the first side plate.

[0023] In one possible implementation, the ore powder feeding device further includes two hole beams;

[0024] The two hole beams are respectively fixed on both sides of the bottom end of the bin.

[0025] In one possible implementation, the ore powder feeding device further includes a cover plate and a buckle assembly;

[0026] The buckle assembly includes a first buckle, a second buckle, and a plug pin;

[0027] One end of the cover plate is rotatably connected to one end of the bottom of the bin, and the other end of the cover plate is movably covered on the other end of the bottom of the bin;

[0028] The first buckle is fixed at the bottom of the other end of the cover plate, the second buckle is fixed at the bottom of the hole beam, and the plug pin is detachably inserted into the first buckle and the second buckle.

[0029] In one possible implementation, the ore powder feeding device further includes a screw feeding assembly;

[0030] The spiral feeding assembly is arranged at the feeding port of the silo;

[0031] The spiral feeding assembly includes a first spiral feeding member and a second spiral feeding member;

[0032] The spiral direction of the first spiral blade of the first spiral feeding member is opposite to the spiral direction of the second spiral blade of the second spiral feeding member.

[0033] Compared with the prior art, the beneficial effects of the ore powder feeding device according to the embodiment of the present invention are as follows:

[0034] 1. Since the plug plate is inserted obliquely into the silo, blocking the silo, then filling the silo with ore powder in the ore powder storage workshop. After filling the ore powder, transfer the ore powder feeding device to the pulping workshop, and use the hoisting assembly in the pulping workshop to extract the plug plate for feeding; since the plug plate bears the weight of the ore powder, the cover plate at the bottom of the silo is easily opened, saving time and effort. It solves the problem that the cover plate of the existing feeding device is difficult to open due to the heavy pressure of the ore powder.

[0035] 2. When filling the silo with ore powder, the upwardly convex arc at the other end of the abutting portion is stuck with the downwardly convex arc at the bottom of one end of the plug plate, making the plug plate more firmly and reliably placed on the abutting portion, preventing the plug plate from loosening during the process of filling the silo with ore powder and causing ore powder leakage; when the ore powder in the silo is filled to the required weight, the upwardly convex arc at the other end of the abutting portion is stuck with the downwardly convex arc at the bottom of one end of the plug plate, and one end of the plug plate is easily detached from the other end of the abutting portion, facilitating the extraction of the plug plate from the notch;

[0036] 3. The plug plate passes through between the upper roller group and the lower roller group, reducing the friction between the upper surface and the lower surface of the plug plate and the notch, and it is more time-saving and labor-saving to extract the plug plate from the notch. Description of the Drawings

[0037] Figure 1 is the schematic plan view of the ore powder feeding device provided by the present invention during application;

[0038] Figure 2 is the schematic three-dimensional structure view of the ore powder feeding device provided by the present invention;

[0039] Figure 3 is the schematic cross-sectional structure view of the ore powder feeding device provided by the present invention;

[0040] Figure 4 is provided by the present invention Figure 3 The enlarged view of part A in;

[0041] Figure 5Schematic diagram of the three-dimensional structure of the ore powder feeding device from another angle provided by the present utility model.

[0042] In the figure:

[0043] 9 - Hoisting assembly; 91 - Cross beam; 92 - Traveling crane; 93 - Electric hoist; 94 - Suspension rope; 95 - Positioning part;

[0044] 96 - Pulling rope; 10 - Hopper; 11 - Silo; 111 - First side plate; 1111 - Notch;

[0045] 112 - Second side plate; 113 - Contact part; 12 - Hook; 13 - Plug board; 14 - Hook;

[0046] 15 - Upper roller group; 151 - Upper rotating shaft; 152 - Upper roller; 16 - Lower roller group; 161 - Lower rotating shaft;

[0047] 162 - Lower roller; 17 - Upper baffle; 18 - Lower baffle; 19 - Support part; 191 - Support rod;

[0048] 192 - Pulley; 20 - Hole beam; 21 - Cover plate; 211 - Rotating shaft; 22 - Snap component;

[0049] 221 - First snap; 222 - Second snap; 223 - Plug pin; 23 - Screw feeding assembly;

[0050] 231 - First screw feeding part; 2311 - First screw blade; 232 - Second screw feeding part;

[0051] 2321 - Second screw blade. Detailed implementation manners

[0052] The following combines the drawings and embodiments to further describe in detail the specific implementation manners of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0053] In the description of the present utility model, it should be clear that the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0054] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms of "a", "the" and "said" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0055] It should be understood that the term "and / or" used herein is merely a description of the same fields of related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this text generally indicates that the related objects before and after are in an "or" relationship.

[0056] It should be understood that the "first", "second", etc. used in this application are only for the purpose of distinguishing descriptions, and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or implying an order.

[0057] In the description of this application, the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to this application.

[0058] In the description of this application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or a contact connection or an integral connection; for those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0059] Refer to Figure 1 、 Figure 2 As shown, the mineral powder feeding device described in the embodiment of this application may include a hopper 10, a silo 11, a hook 12, a plug 13, and a hanger 14; the silo 11 is fixedly arranged at the bottom of the hopper 10 by integral molding or welding, so that the mineral powder in the hopper 10 can smoothly fall into the silo 11, and the hook 12 is fixed to the top of the hopper 10 by welding or fasteners;

[0060] The shape of the silo 11 can be square, and the silo 11 may include a first side plate 111, a second side plate 112, and a contact portion 113; the contact portion 113 is used to bear the weight of the plug 13 and the mineral powder falling on the plug 13. The first side plate 111 and the second side plate 112 are arranged opposite to each other, and a notch 1111 is formed on the first side plate 111, and one end of the contact portion 113 is fixed to the inner wall of the second side plate 112;

[0061] One end of the insertion plate 13 is inclined and passes through the notch 1111 and is placed on the abutting portion 113. The insertion plate 13 is used to block the falling of the ore powder in the bin 11. The angle between the insertion plate 13 and the horizontal plane is between 30° and 75°. When the inclination angle of the insertion plate 13 is within the above range, the insertion plate 13 is relatively easy to be pulled out from the notch 1111, and the length of the insertion plate 13 is also appropriate. When the angle between the insertion plate 13 and the horizontal plane is less than 30°, the vertical downward gravity borne by the insertion plate 13 is too large, making it difficult for the insertion plate 13 to be pulled out from the notch 1111. When the angle between the insertion plate 13 and the horizontal plane is greater than 75°, the length of the insertion plate 13 becomes too long. At this time, the height of the notch 1111 also needs to become longer, and the ore powder is likely to flow out from the notch 1111. The width of the notch 1111 is slightly smaller than the inner width of the bin 11. After one end of the insertion plate 13 abuts against the abutting portion 113, the insertion plate 13 blocks the inside of the bin 11 to prevent the ore powder in the bin 11 from falling down. The other end of the insertion plate 13 extends outside the first side plate 111, and the hook 14 is welded or fixed to the end of the other end of the insertion plate 13 by a fastener.

[0062] In one embodiment, as Figure 3 shown, the top of the other end of the abutting portion 113 is arranged in an upwardly convex arc shape, and the bottom of one end of the insertion plate 13 is arranged in a downwardly convex arc shape. When filling the ore powder into the bin 11, the upwardly convex arc of the other end of the abutting portion 113 is stuck with the downwardly convex arc of the bottom of one end of the insertion plate 13, so that the insertion plate 13 is placed on the abutting portion 113 more firmly and reliably, preventing the insertion plate 13 from loosening during the process of filling the ore powder into the bin 11 and causing the ore powder to leak; when the ore powder in the bin 11 is filled to the required weight, the upwardly convex arc of the other end of the abutting portion 113 is stuck with the downwardly convex arc of the bottom of one end of the insertion plate 13, and one end of the insertion plate 13 is easily detached from the other end of the abutting portion 113, facilitating the insertion plate 13 to be pulled out from the notch 1111.

[0063] In one embodiment, as Figure 3 shown, the number of the abutting portions 113 is multiple, and the multiple abutting portions 113 are arranged at intervals on the inner wall of the second side plate 112. When the ore powder in the bin 11 is filled to the required weight, after the ore powder feeding device is transferred to the required workshop, the insertion plate 13 is pulled out from the notch 1111, and the ore powder falls downward from the inside of the bin 11. Since there are gaps between the multiple abutting portions 113, the amount of ore powder accumulated on the abutting portion 113 is reduced, improving the accuracy of ore powder feeding.

[0064] In one embodiment, as Figure 4As shown, the ore powder feeding device further includes an upper roller group 15 and a lower roller group 16; the upper roller group 15 is arranged above the inside of the notch 1111, and the upper roller group 15 includes an upper rotating shaft 151 and a plurality of upper rollers 152 arranged on the upper rotating shaft 151; the lower roller group 16 is arranged below the inside of the notch 1111, and the lower roller group 16 includes a lower rotating shaft 161 and a plurality of lower rollers 162 arranged on the lower rotating shaft 161; the insertion plate 13 passes through between the upper roller group 15 and the lower roller group 16, reducing the friction between the upper surface and the lower surface of the insertion plate 13 and the notch 1111, and it is more time-saving and labor-saving to draw out the insertion plate 13 from the notch 1111.

[0065] In one embodiment, as Figure 4 shown, the ore powder feeding device further includes an upper baffle 17 and a lower baffle 18; both the upper baffle 17 and the lower baffle 18 are made of hard materials, such as metal, tempered glass, and plastics with high rigidity; the height of one end of the upper baffle 17 is higher than the height of the notch 1111, so the first position on the inner wall of the first side plate 111 is a position higher than the height of the notch 1111; one end of the upper baffle 17 is fixed to the inner wall of the first side plate 111 by welding or fasteners, and the other end of the upper baffle 17 extends to the upper surface of the insertion plate 13; when the insertion plate 13 is drawn out from the notch 1111, the ore powder on the upper surface of the insertion plate 13 is blocked by the upper baffle 17, and the ore powder on the upper surface of the insertion plate 13 is scraped off into the inside of the bin 11, reducing the amount of ore powder flowing out of the notch 1111 and reducing the waste during the transfer of ore powder.

[0066] The height of one end of the lower baffle 18 is lower than the height of the notch 1111, so the second position on the inner wall of the first side plate 111 is a position lower than the height of the notch 1111; the other end of the lower baffle 18 is fixed to the inner wall of the first side plate 111 by welding or fasteners, and the other end of the lower baffle 18 extends to the lower surface of the insertion plate 13. The insertion plate 13 passes through between the upper baffle 17 and the lower baffle 18. The length of the upper baffle 17 is longer than the length of the notch 1111, and the length of the lower baffle 18 is longer than the length of the notch 1111. The upper baffle 17, the lower baffle 18 and the insertion plate 13 jointly seal the notch 1111; when the insertion plate 13 is drawn out from the notch 1111, the ore powder on the lower surface of the insertion plate 13 is blocked by the lower baffle 18, and the ore powder on the lower surface of the insertion plate 13 is scraped off into the inside of the bin 11, reducing the amount of ore powder flowing out of the notch 1111 and reducing the waste during the transfer of ore powder.

[0067] In one embodiment, as Figure 3 and Figure 4As shown, the ore powder feeding device further includes a support member 19; the support member 19 supports the plug plate 13 to prevent the plug plate 13 from pressing down due to lack of support and generating greater friction; the support member 19 includes a support rod 191 and a pulley 192; the height of one end of the support rod 191 is lower than the height of the bottom end of the lower baffle 18; the height of one end of the support rod 191 is lower than the height of one end of the lower baffle 18, so the third position on the inner wall of the first side plate 111 is a position lower than the height of one end of the support rod 191; one end of the support rod 191 is fixed to the inner wall of the first side plate 111 by welding or fasteners, and the pulley 192 is arranged at the end of the other end of the support rod 191, and the pulley 192 abuts against the lower surface of the plug plate 13 to reduce the friction force on the lower surface of the plug plate 13, so that the plug plate 13 can be more time-saving and labor-saving to be pulled out from the notch 1111.

[0068] In one embodiment, as Figure 3 and Figure 4 shown, the number of the support members 19 is at least two, and a plurality of support members 19 are arranged at intervals on the inner wall of the first side plate 111. Two support members 19 support the plug plate 13, and the bottom of the plug plate 13 is more evenly stressed and more firmly supported, so that the process of pulling the plug plate 13 out of the notch 1111 is more stable.

[0069] In one embodiment, as Figure 5 shown, the ore powder feeding device further includes two hole beams 20; the two hole beams 20 are respectively fixed to both sides of the bottom end of the silo 11 by welding or fasteners. A hole for inserting the fork wall of the forklift is formed inside the hole beam 20, which is convenient for transporting the ore powder feeding device from the loading place to the workshop where the ore powder needs to be used for subsequent unloading by the forklift after the ore powder feeding device is filled with ore.

[0070] In one embodiment, as Figure 5 shown, the ore powder feeding device further includes a cover plate 21 and a buckle assembly 22; the buckle assembly 22 includes a first buckle 221, a second buckle 222, and a bolt 223; one end of the cover plate 21 is rotatably connected to one end of the bottom of the silo 11 through a rotating shaft 211, and the other end of the cover plate 21 is movably covered on the other end of the bottom of the silo 11; it is convenient to open or close the cover plate 21 on the bottom of the silo 11. The first buckle 221 is fixed to the bottom of the other end of the cover plate 21 by welding or fasteners, the second buckle 222 is fixed to the bottom of the hole beam 20 by welding or fasteners, and the bolt 223 passes through the inside of the first buckle 221 and the inside of the second buckle 222 to bolt the cover plate 21 to prevent the cover plate 21 from falling down. When filling the ore powder into the silo 11, the cover plate 21 covers the bottom of the silo 11, and the bolt 223 passes through the first buckle 221 and the second buckle 222 to abut against the cover plate 21, so that the cover plate 21 blocks the bottom of the silo 11 to prevent the ore powder from flowing out of the bottom of the silo 11 during the process of filling the ore powder into the silo 11.

[0071] In one embodiment, as Figure 2 andFigure 3 As shown in the figure, the ore powder feeding device further includes a screw feeding assembly 23; the screw feeding assembly 23 is arranged at the feeding port of the silo 11; the screw feeding assembly 23 includes a first screw feeding member 231 and a second screw feeding member 232; the rotation direction of the first screw blade 2311 of the first screw feeding member 231 is opposite to that of the second screw blade 2321 of the second screw feeding member 232. When feeding ore powder into the feeding port of the silo 11, the first screw blade 2311 and the second screw blade 2321 are placed in opposite directions, so that the ore powder on the screw feeding assembly 23 generates an opposite force for feeding, preventing the ore powder from being blocked at the screw feeding assembly 23.

[0072] Working process:

[0073] 1) Filling

[0074] In the ore powder storage workshop, one end of the plug board 13 is placed on the abutting portion 113, and the plug board 13 blocks the silo 11 to prevent the ore powder from falling from the silo 11;

[0075] Rotate the cover plate 21 to be flush with the bottom of the silo 11, and insert the bolt 223 into the first buckle 221 and the second buckle 222 to clamp the cover plate 21;

[0076] Put ore powder into the silo 11, and the ore powder falls from the hopper 10 onto the plug board 13. When the amount of ore powder falling into the silo 11 reaches the preset heavy material, stop feeding;

[0077] 2) Transfer

[0078] Insert the forklift arm of the forklift into the hole beam 20, start the forklift to transfer the ore powder feeding device filled with ore powder to the pulp making workshop that needs ore powder;

[0079] 3) Feeding

[0080] Transfer the ore powder feeding device to the working position of the required pulp making workshop. Utilize the hoisting assembly 9 in the workshop. The traveling crane 92 on the cross beam 91 drives the electric hoist 93 to move on the cross beam 91, move above the hopper 10, the electric hoist 93 lowers the lifting rope 94, and tie the lower end of the lifting rope 94 to the hook 12. At the same time, fix the free end of the pulling rope 96 to the pulling hook 14; the electric hoist 93 pulls up the lifting rope 94 to suspend the entire ore powder feeding device. After the traveling crane 92 drives the ore powder feeding device to move above the pulp making tank that needs to be fed with ore powder, pull out the bolt 223 and open the cover plate 21; the electric hoist 93 lowers the lifting rope 94 to lower the ore powder feeding device at the same time. During the lowering process, the positioning member 95 does not move, the pulling rope 96 is tightened, and during the continuous lowering of the silo 11, the plug board 13 is gradually pulled out from the notch 1111, and the ore powder is fed from the silo 11 into the pulp making tank until all the ore powder in the silo 11 is fed.

[0081] Beneficial effects:

[0082] Since the plug board 13 is inserted into the silo 11 obliquely, blocking the silo 11, then the ore powder is filled into the silo in the ore powder storage workshop. After filling the ore powder, the ore powder feeding device is transferred to the pulping workshop, and the plug board 13 is pulled out again by using the hoisting component 9 in the pulping workshop for feeding; because the plug board 13 bears the weight of the ore powder, the cover plate 21 at the bottom of the silo 11 can be easily opened, saving time and effort. It solves the problem that the existing feeding device is difficult to open because the cover plate bears the heavy pressure of the ore powder.

[0083] The above is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art of this technology, without departing from the technical principle of the present invention, several improvements and substitutions can be made, and these improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A mineral powder feeding device, characterized in that: It comprises a hopper (10), a silo (11), a plug board (13) and a hook (14); The silo (11) is fixedly arranged at the bottom of the hopper (10); The material bin (11) comprises a first side plate (111), a second side plate (112), and an abutment portion (113); The first side plate (111) and the second side plate (112) are arranged opposite to each other, a notch (1111) is provided on the first side plate (111), and one end of the abutting portion (113) is fixed to the inner wall of the second side plate (112); One end of the plug plate (13) is tilted through the slot (1111) and placed on the abutment portion (113) to prevent the mineral powder in the silo (11) from falling. The other end of the plug plate (13) extends outside the first side plate (111), and the hook (14) is fixed to the end of the other end of the plug plate (13).

2. The mineral powder feeding device according to claim 1, characterized in that: The top of the other end of the abutting portion (113) is arranged in an arc shape that bulges upwards, and the bottom of the one end of the inserting plate (13) is arranged in an arc shape that bulges downwards.

3. The mineral powder feeding device according to claim 1, characterized in that: There are a plurality of the abutting portions (113), and the plurality of the abutting portions (113) are arranged at intervals on the inner wall of the second side plate (112).

4. The mineral powder feeding device according to claim 1, characterized in that: It also includes an upper roller group (15) and a lower roller group (16); The upper roller group (15) is arranged on the top inner wall of the slot (1111), the lower roller group (16) is arranged on the bottom inner wall of the slot (1111), and the plug plate (13) is inserted between the upper roller group (15) and the lower roller group (16).

5. The mineral powder feeding device according to claim 1, characterized in that: It also includes an upper baffle (17) and a lower baffle (18); One end of the upper baffle (17) is fixed to a first location of the inner wall of the first side plate (111), and the other end of the upper baffle (17) extends to the upper surface of the plug plate (13); One end of the lower baffle (18) is fixed to a second location on the inner wall of the first side plate (111), and the other end of the lower baffle (18) extends to the lower surface of the plug plate (13), and the plug plate (13) is inserted between the upper baffle (17) and the lower baffle (18).

6. The mineral powder feeding device according to claim 1, characterized in that: Also includes a support member (19); The support member (19) comprises a support rod (191) and a pulley (192); One end of the support rod (191) is fixed to a third position of the inner wall of the first side plate (111), and the pulley (192) is arranged at the end of the other end of the support rod (191), and the pulley (192) abuts against the lower surface of the plug plate (13).

7. The mineral powder feeding device according to claim 6, characterized in that: There are a plurality of support members (19), and the plurality of support members (19) are arranged at intervals on the inner wall of the first side plate (111).

8. The mineral powder feeding device according to claim 1, characterized in that: Also includes two hole beams (20); The two hole beams (20) are respectively fixed on both sides of the bottom end of the silo (11).

9. The mineral powder feeding device according to claim 8, characterized in that: It also includes a cover plate (21) and a buckle assembly (22); The buckle assembly (22) comprises a first buckle (221), a second buckle (222), and a latch (223); One end of the cover plate (21) is rotatably connected to one end of the bottom of the silo (11), and the other end of the cover plate (21) is movably covered on the other end of the bottom of the silo (11); The first buckle (221) is fixed to the bottom of the other end of the cover plate (21), the second buckle (222) is fixed to the bottom of the hole beam (20), and the latch (223) is detachably inserted into the first buckle (221) and the second buckle (222).

10. The mineral powder feeding device according to claim 1, characterized in that: Also includes a screw feeding assembly (23); The spiral feeding assembly (23) is arranged at the feed inlet of the silo (11); The spiral feeding assembly (23) comprises a first spiral feeding member (231) and a second spiral feeding member (232); The rotation direction of the first spiral blade (2311) of the first spiral feeding member (231) is opposite to the rotation direction of the second spiral blade (2321) of the second spiral feeding member (232).

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