A powder processing device for iron-silicon powder

Abstract

The utility model belongs to the iron silicon powder processing technical field, concretely relates to a kind of powder making device for iron silicon powder processing, including ball mill body, ball mill body top surface installs material port, material port surface screw thread connection bucket cover, fixed ring is fixedly connected in material port inner wall surface, fixed ring top surface connects screw rod, and screw rod top surface is inserted in screen surface.This utility model, through the mutual cooperation between fixed ring, screw rod, screen, nut, sieve hole, adjusting plate, bottom bar, limiting recess, limiting rod, slot, screw head and fixed rod, installs screen on the surface of material port, so that after grinding processing, the iron silicon powder that needs to discharge after grinding can be screened, the coarse material that does not meet the specification is intercepted and left in ball mill body, secondary grinding is facilitated, and the size of sieve hole on screen surface can be adjusted according to production needs during use, to meet the screening of different production needs.

Description

Technical Field

[0001] This utility model belongs to the field of iron-silicon powder processing technology, and specifically relates to a powder-making device for iron-silicon powder processing. Background Technology

[0002] Ferrosilicon powder is a powdered material with iron and silicon as its main components. It is usually produced by crushing and grinding ferrosilicon alloys (such as ferrosilicon alloys). The silicon content in its composition can be adjusted according to different applications. It has good electrical conductivity, wear resistance, and corrosion resistance, and is widely used in metallurgy, electronics, chemical and other fields. For example, it is used as a deoxidizer and alloying additive in the steelmaking process, or as a raw material for making magnetic materials and semiconductor devices.

[0003] In the field of iron-silicon powder preparation, the pursuit of powder quality and production efficiency has always been the core driving force for industry development. As a key basic material for industries such as metallurgy, electronics, and new energy, the particle size uniformity, purity, and production cost of iron-silicon powder directly affect the performance and competitiveness of downstream products. For example, in steelmaking, iron-silicon powder with a suitable particle size can serve as a highly efficient deoxidizer, accelerating the improvement of steel purity; in the manufacture of magnetic materials, finer powder particle size can significantly optimize the magnetic properties of the product. However, traditional powder preparation processes have many bottlenecks, such as the high cost and limited yield of gas atomization, and the difficulty in producing powders with high sphericity using mechanical crushing, making it difficult to meet the stringent requirements of modern industry for iron-silicon powder.

[0004] Ball mills, as a classic and efficient grinding equipment, are gradually emerging in the preparation of ferrosilicon powders due to their powerful crushing and grinding capabilities. Through the rolling, impact, and grinding action of steel balls within the cylinder, they effectively overcome the high hardness and toughness of ferrosilicon alloys, refining lumpy raw materials to the desired particle size. Compared to other powder-making equipment, ball mills offer advantages such as strong adaptability, large processing capacity, and controllable finished product particle size. They can achieve both dry grinding for increased efficiency and wet grinding to reduce dust pollution and improve powder dispersibility.

[0005] Existing ball mills require external screening equipment for discharge and lack an efficient discharge grading structure. After discharge, an additional process is needed to screen iron-silicon powder that meets the particle size requirements, increasing the complexity of the production process and equipment investment. Utility Model Content

[0006] The purpose of this utility model is to provide a powder-making device for processing iron-silicon powder, which aims to solve the problems in the prior art where existing ball mills require external screening equipment when discharging material, lack an efficient discharge grading structure, and require additional screening processes after discharge to select iron-silicon powder that meets the particle size requirements, thus increasing the complexity of the production process and equipment investment.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a powder-making device for processing iron-silicon powder, comprising a ball mill body, a material inlet installed on the top surface of the ball mill body, a barrel cover threadedly connected to the surface of the material inlet, a fixing ring fixedly connected to the inner wall surface of the material inlet, a screw connected to the top surface of the fixing ring, the top surface of the screw inserted into the surface of a screen, a nut abutting in a groove installed on the inner wall of the screen, the nut threadedly connected to the surface of the screw, screen holes opened on the bottom surface of the screen, an adjusting plate movably abutting on the top surface of the screen holes, a bottom rod connected to the bottom surface of the adjusting plate, a limiting groove slidably connected to the surface of the bottom rod, the limiting groove being opened at the top of the transverse end of the screen, a limiting rod connected to the top surface of the transverse end of the screen, the limiting rod being inserted into a slot opened on the surface of the adjusting plate, a threaded head abutting on the top surface of the adjusting plate, the bottom of the threaded head being threadedly connected to the top surface of a fixing rod, and the surface of the fixing rod penetratingly connected at the intersection of the screen and the adjusting plate.

[0008] As a preferred embodiment of the powder-making device for processing iron-silicon powder according to this utility model, the longitudinal end surface of the screen is provided with a circular mounting groove, the shape and size of which are adapted to the nut.

[0009] As a preferred embodiment of the powder-making device for processing iron-silicon powder according to this utility model, a ring of circular slots is formed on the surface of the adjusting plate at equal intervals, and the shape and size of the slots are adapted to the limiting rod.

[0010] As a preferred embodiment of the powder-making device for processing iron-silicon powder according to this utility model, the adjusting plate is a rectangular plate structure with a ring distribution, and its shape and size are adapted to the sieve holes.

[0011] As a preferred embodiment of the powder-making device for processing iron-silicon powder according to this utility model, the limiting groove is an annular groove, the shape and size of which are adapted to the bottom rod.

[0012] As a preferred embodiment of the powder-making device for processing iron-silicon powder according to this utility model, the upper end of the fixed rod is provided with a threaded groove, the shape and size of which are adapted to the threaded groove on the inner wall of the threaded head.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] By coordinating the fixing ring, screw, screen, nut, screen holes, adjusting plate, bottom rod, limiting groove, limiting rod, slot, threaded head, and fixing rod, a screen is installed on the surface of the feed inlet. This allows for the screening of the iron-silicon powder to be discharged after grinding, intercepting non-compliant coarse materials within the ball mill body for secondary grinding. Furthermore, the size of the screen holes can be adjusted according to production needs to meet different screening requirements. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a side view sectional structural diagram of the present invention;

[0018] Figure 3 This is an exploded view of the screen and adjusting plate of this utility model.

[0019] Figure 4 This utility model Figure 2 Enlarged structural diagram of section A.

[0020] In the diagram: 1. Ball mill body; 2. Feed inlet; 3. Bucket cover; 4. Fixing ring; 5. Screw; 6. Screen; 7. Nut; 8. Screen hole; 9. Adjusting plate; 10. Bottom rod; 11. Limiting groove; 12. Limiting rod; 13. Slot; 14. Threaded head; 15. Fixing rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-4This utility model provides the following technical solution: A powder-making device for processing iron-silicon powder, comprising a ball mill body 1, a material inlet 2 installed on the top surface of the ball mill body 1, a barrel cover 3 threadedly connected to the surface of the material inlet 2, a fixing ring 4 fixedly connected to the inner wall surface of the material inlet 2, a screw 5 connected to the top surface of the fixing ring 4, the top surface of the screw 5 inserted into the surface of the screen 6, a nut 7 abutting in a groove installed on the inner wall of the screen 6, the nut 7 threadedly connected to the surface of the screw 5, a screen hole 8 opened on the bottom surface of the screen 6, an adjusting plate 9 movably abutting the top surface of the screen hole 8, a bottom rod 10 connected to the bottom surface of the adjusting plate 9, and a limiting groove 11 slidably connected to the surface of the bottom rod 10. A limiting rod 12 is connected to the top surface of the transverse end of the screen 6. The limiting rod 12 is inserted into the slot 13 opened on the surface of the adjusting plate 9. The top surface of the adjusting plate 9 abuts against the threaded head 14. The bottom of the threaded head 14 is threaded to the top surface of the fixing rod 15. The surface of the fixing rod 15 is connected through the intersection of the screen 6 and the adjusting plate 9. In this design, the ball mill body 1, the feed inlet 2 and the barrel cover 3 constitute the main body of the horizontal ball mill. A large number of related components are set in the main body of the horizontal ball mill. Since they are existing technologies and the core content of this technical solution is not related to them, they will not be described in detail in this technical solution.

[0023] The main model of the horizontal ball mill in this solution is the QM series horizontal ball mill.

[0024] In operation: The main motor of the horizontal ball mill drives the cylinder to rotate. The grinding media (such as steel balls) inside the cylinder, under the combined action of centrifugal force and gravity, rise to a certain height and then fall, acting on the iron-silicon powder raw material through both impact and grinding. On one hand, the larger grinding media exert a strong impact on the lumpy iron-silicon alloy raw material during the falling process, causing it to initially break down; on the other hand, the numerous grinding media roll and rub against each other, further grinding and refining the already broken iron-silicon raw material. By adjusting the cylinder rotation speed, the motion state of the grinding media can be changed, thereby adjusting the intensity of the impact and grinding action. Changing the type, size, and quantity of grinding media can adapt to the characteristics of the iron-silicon raw material and different processing requirements. Furthermore, this ball mill supports both dry and wet grinding methods to meet diverse production needs, ultimately processing the iron-silicon powder raw material into products that meet particle size standards.

[0025] Preferably, a circular mounting groove is formed on the longitudinal end surface of the screen 6, the shape and size of which are adapted to the nut 7.

[0026] In practical use, the circular mounting groove on the surface of the screen 6 is used to easily insert the screw 5, and then the connection between the two is fixed by the thread of the nut 7.

[0027] Preferably, a ring of circular slots 13 is formed on the surface of the adjusting plate 9 at equal intervals, the shape and size of which are adapted to the limiting rod 12.

[0028] In practical use, after the adjustment is completed, the slot 13 at the appropriate position on the surface of the adjustment plate 9 is used to fit onto the limiting rod 12, thereby limiting the adjustment plate 9 after the angle has been adjusted. The slot 13 can accommodate the conventional size of existing iron-silicon powder raw material particles.

[0029] Preferably, the adjusting plate 9 is a rectangular plate structure with a ring distribution, and its shape and size are adapted to the sieve holes 8.

[0030] In practical use, the size of the screen hole 8 exposed at the intersection of the screen hole 8 and the adjusting plate 9 is adjusted according to the particle size requirements of the raw material. The size of the screen hole 8 exposed is adjusted by the overlapping position of the adjusting plate 9 and the screen hole 8, thereby completing the screening of different particle sizes.

[0031] Preferably, the limiting groove 11 is an annular groove, the shape and size of which are adapted to the bottom rod 10.

[0032] In practical use, the adjusting plate 9 can slide on the limiting groove 11 using the bottom rod 10 connected to its bottom, thereby limiting its range of movement and adjusting the intersection of the adjusting plate 9 and the sieve hole 8.

[0033] Preferably, the upper end of the fixing rod 15 is provided with a threaded groove, the shape and size of which are adapted to the threaded groove on the inner wall of the threaded head 14.

[0034] In practical use, the connection between the two is achieved by using the threaded groove on the top of the fixing rod 15 and the threaded groove in the threaded head 14 that matches it.

[0035] Working principle: When grinding iron-silicon powder, the screw-on lid 3 connected to the feed inlet 2 is unscrewed, exposing the open end of the feed inlet 2. The iron-silicon powder to be ground and steel balls are then fed into the ball mill body 1 for grinding. Simultaneously, according to the required particle size of the iron-silicon powder, a screen 6 with an appropriate size of sieve aperture 8 is selected. In actual use, a 316 stainless steel screen 6 and adjusting plate 9 can be used, as they have high strength and good wear resistance, effectively resisting the wear of the iron-silicon powder and extending the service life of the screen 6; alternatively, an alloy screen 6 with a hardened surface, such as a manganese steel screen 6, can be used, whose surface hardness is improved through a special heat treatment process, enhancing its strength. To ensure wear resistance, after selecting a suitable screen 6, insert the screen 6 onto the screw 5 at the top of the fixing ring 4, and then connect the two using the threaded nut 7. This fixes the screen 6 to its position on the inner wall of the feed inlet 2. When connecting the threaded nut 7, use a torque wrench to tighten it to the specified torque to ensure proper tightening and prevent loosening. After fixing the screen 6, thread the bucket cover 3 onto the feed inlet 2 and use a sealing ring to fill the gap between the two, making the connection tighter. After fixing, start the switch of the ball mill body 1 to grind the iron-silicon powder material placed inside the ball mill body 1. After grinding is complete, unscrew the cover. The barrel cover 3 is threaded onto the feed inlet 2. According to processing requirements, the threaded head 14 threaded onto the fixing rod 15 is loosened, allowing the adjusting plate 9, which is threadedly fastened between the two, to slide on the limiting groove 11 using the bottom rod 10 connected to its bottom. This limits its range of movement, thereby adjusting the intersection of the adjusting plate 9 and the sieve hole 8. Based on the particle size requirements of the processed raw material, the size of the sieve hole 8 exposed at the intersection of the sieve hole 8 and the adjusting plate 9 is adjusted. After adjustment, the slot 13 on the surface of the adjusting plate 9 is fitted onto the limiting rod 12, thus limiting the adjustment plate 9 after angle adjustment. The slot 13 can accommodate the existing particle size of iron-silicon powder raw materials. The standard size is then rotated again in the opposite direction to tighten the connection between the fixed rod 15 and the adjusting plate 9, thereby fixing the position of the adjusting plate 9 after the angle adjustment. This allows for the screening of the processed iron-silicon powder raw material particles. When the material is fed downwards from the feed port 2, the iron-silicon powder raw material particles exceeding the requirements are intercepted and temporarily retained in the ball mill body 1 for secondary grinding. This enables real-time control of the output particle size, allowing particles that meet the requirements of iron-silicon powder to be discharged through the screen 6, while coarse particles remain directly in the cylinder for further grinding. This eliminates the need for an external screening step, simplifies the production process, reduces equipment investment and space occupation, and allows the discharge-screening process to be completed in one step, improving production continuity and efficiency.

[0036] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A powder-making apparatus for processing iron-silicon powder, comprising a ball mill body (1), characterized in that: A feed inlet (2) is installed on the top surface of the ball mill body (1). A barrel cover (3) is threaded onto the surface of the feed inlet (2). A fixing ring (4) is fixedly connected to the inner wall surface of the feed inlet (2). A screw (5) is connected to the top surface of the fixing ring (4). The top surface of the screw (5) is inserted into the surface of the screen (6). A nut (7) is abutted in a groove installed on the inner wall of the screen (6). The nut (7) is threaded onto the surface of the screw (5). A screen hole (8) is opened on the bottom surface of the screen (6). An adjusting plate (9) is movably abutted on the top surface of the screen hole (8). The bottom of the adjusting plate (9) is... A bottom rod (10) is connected to the surface of the screen (6). The surface of the bottom rod (10) is slidably connected to the limiting groove (11). The limiting groove (11) is opened at the top of the transverse end of the screen (6). A limiting rod (12) is connected to the top surface of the transverse end of the screen (6). The limiting rod (12) is inserted into the slot (13) opened on the surface of the adjusting plate (9). The top surface of the adjusting plate (9) abuts against the threaded head (14). The bottom of the threaded head (14) is threadedly connected to the top surface of the fixing rod (15). The surface of the fixing rod (15) is connected through the intersection of the screen (6) and the adjusting plate (9).

2. The powder-making apparatus for processing iron-silicon powder according to claim 1, characterized in that: The screen (6) has a circular mounting groove on its longitudinal end surface, the shape and size of which are adapted to the nut (7).

3. The powder-making apparatus for processing iron-silicon powder according to claim 1, characterized in that: The adjustment plate (9) has a ring of equally spaced circular slots (13) on its surface, the shape and size of which are adapted to the limiting rod (12).

4. The powder-making apparatus for processing iron-silicon powder according to claim 2, characterized in that: The adjusting plate (9) is a rectangular plate structure with a ring distribution, and its shape and size are adapted to the sieve holes (8).

5. The powder-making apparatus for processing iron-silicon powder according to claim 1, characterized in that: The limiting groove (11) is an annular groove, and its shape and size are adapted to the bottom rod (10).

6. The powder-making apparatus for processing iron-silicon powder according to claim 1, characterized in that: The upper end of the fixing rod (15) is provided with a threaded groove, the shape and size of which are adapted to the threaded groove on the inner wall of the threaded head (14).

Images