Rare earth iron oxide raw material crushing equipment

Abstract

The utility model discloses rare earth iron oxide raw material crushing equipment, relates to the technical field of crushing equipment, and aims to solve the technical problems that the conventional equipment is insufficient in crushing effect and is difficult to meet the production requirement of rare earth iron oxide, and the rare earth iron oxide raw material crushing equipment comprises a crushing box, a crushing mechanism arranged in the crushing box and an anti-blocking mechanism arranged in the crushing mechanism, first crushing teeth are arranged on the inner wall of the crushing box in an array mode, the crushing mechanism comprises rotating shafts rotationally installed on the inner wall of the upper end and the inner wall of the lower end of the crushing box and a crushing roller installed between the rotating shafts, second crushing teeth are arranged on the outer surface of the crushing roller in an array mode, and the anti-blocking mechanism comprises an elastic rod and an extrusion roller. And the extrusion roller is arranged in the crushing roller. The crusher has the advantages that raw materials can be efficiently sheared through the first crushing teeth and the second crushing teeth which are spirally reversed, accumulation is avoided, the treatment efficiency is improved, progressive coarse crushing to fine crushing is achieved through the gradual change design of the sizes and the intervals of the teeth, the crushing effect is greatly improved, and the production requirement is met.

Description

Technical Field

[0001] This utility model relates to the field of crushing equipment technology, and more specifically, to a crushing equipment for rare earth iron oxide raw materials. Background Technology

[0002] Rare earth iron oxides are a class of composite oxides formed by the combination of rare earth elements with iron and oxygen, possessing unique magnetic, optical, and electrical physicochemical properties. The introduction of rare earth elements (such as lanthanum, cerium, and neodymium) into their composition endows the materials with richer energy level structures and coordination environments, enabling them to exhibit superior performance in catalysis, magnetic materials, and electronic devices. In catalysis, rare earth iron oxides, due to their abundant surface acidic sites and strong redox capabilities, are commonly used in reactions such as automotive exhaust purification and organic pollutant degradation, enhancing the activity and stability of catalysts. In magnetic applications, some rare earth iron oxides are core components of high-performance permanent magnet materials, widely used in new energy vehicles, wind turbines, and other fields.

[0003] The processing of rare earth iron oxide raw materials requires crushing. Currently, single-roller crushers use a central toothed roller that rotates and engages with jaw plates on the inner wall of the equipment for crushing. However, the teeth and jaw plates are spaced evenly from top to bottom, resulting in insufficient crushing efficiency and failing to meet the production requirements of rare earth iron oxide. Therefore, we propose a rare earth iron oxide raw material crushing device. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the actual needs, and provide a rare earth iron oxide raw material crushing equipment to solve the technical problem that the current equipment has insufficient crushing effect and is difficult to meet the production needs of rare earth iron oxide.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a rare earth iron oxide raw material crushing device, including a crushing box, a crushing mechanism disposed inside the crushing box, and an anti-blocking mechanism disposed inside the crushing mechanism. The crushing box is a frustum-shaped structure with a larger upper part and a smaller lower part. The upper end of the crushing box is provided with a feed inlet, and the lower end of the crushing box is provided with a discharge outlet. The inner wall of the crushing box is provided with an array of first crushing teeth. The crushing mechanism includes a rotating shaft rotatably mounted on the upper and lower inner walls of the crushing box and a crushing roller mounted between the rotating shaft. The outer surface of the crushing roller is provided with an array of second crushing teeth. The anti-blocking mechanism includes an elastic rod and a squeezing roller, and the squeezing roller is disposed inside the crushing roller.

[0006] Preferably, the first and second crushing teeth are both spirally arranged along their long axis, the spiral directions of the first and second crushing teeth are opposite, the width of the first and second crushing teeth gradually narrows from top to bottom, the depth of the first and second crushing teeth gradually decreases from top to bottom, and the distance between the first and second crushing teeth gradually decreases from top to bottom.

[0007] Preferably, the rotating shaft at the upper end of the crushing roller extends out of the crushing box and is equipped with a driven gear. The rotating shaft is hollow. A first mounting plate is provided at the upper end of the crushing box. A motor is provided at the upper end of the first mounting plate. A driving gear is installed at the end of the output shaft of the motor. The driving gear and the driven gear are meshed and connected for transmission.

[0008] Preferably, a gap groove is formed between the second crushing teeth, an installation cavity is provided inside the crushing roller, an extension groove is opened inside the crushing roller, an extension hole communicating with the extension groove is opened on the outer surface of the crushing roller in the gap groove, and the elastic rod is located in the extension groove and the extension hole.

[0009] Preferably, the elastic rod includes a sleeve rod and a telescopic rod disposed within the sleeve rod, and the telescopic rod extends from the extension hole out of the crushing roller. The front end of the sleeve rod is spherical, and a spring is disposed within the sleeve rod, with the end of the spring connected to the telescopic rod.

[0010] Preferably, the upper end of the extrusion roller is provided with a fixing rod, the fixing rod extends from the rotating shaft out of the crushing box, the upper end of the crushing box is provided with a second mounting plate, the end of the fixing rod is fixedly connected to the second mounting plate, and the outer surface of the extrusion roller is provided with convex and concave surfaces, both of which are arc surfaces.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model designs a first and second crushing tooth structure. The first and second crushing teeth are spirally arranged along the long axis and in opposite directions. When the crushing roller rotates, the two sets of spiral teeth form an interlaced shearing path, generating strong pulling and shearing forces on the rare earth iron oxide raw material. This can efficiently crush large pieces of raw material. Secondly, the rotation of the teeth can also generate axial pushing force, causing the raw material to move gradually along the axial direction of the crushing box. The reverse spiral design avoids local accumulation of raw material, ensuring a continuous and stable crushing process. Compared with traditional crushing equipment, this effectively improves the processing efficiency of rare earth iron oxide raw material. Furthermore, the design of gradually narrowing and decreasing width and depth of the teeth from top to bottom, as well as gradually decreasing spacing, allows the raw material to be coarsely crushed in the upper part of the crushing box, quickly crushed to a medium particle size, and then subjected to greater extrusion force and stronger friction in the lower part, further grinding it into finer particles. This greatly improves the crushing effect and can meet the high precision requirements for raw material particle size in rare earth iron oxide production, solving the problem that the current equipment's crushing effect is insufficient and cannot meet the needs of rare earth iron oxide production.

[0013] 2. This utility model also incorporates an elastic rod and a squeezing roller structure. When the crushing roller rotates, the elastic rod performs a circular motion, with the front end of the rod contacting the convex and concave parts of the outer surface of the squeezing roller. When contacting the convex part, the telescopic rod extends outward against the spring force, squeezing the material in the gap groove to prevent blockage. When moving to the concave part, the telescopic rod retracts and resets under the action of the spring. This cycle repeats continuously, ensuring that the gap groove is not blocked. This not only prevents blockage but also further improves the effect and efficiency of material crushing. Attached Figure Description

[0014] Figure 1 This is a front view structural diagram of the present utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0016] Figure 3 This is a cross-sectional view of the crushing box of this utility model;

[0017] Figure 4 This is a schematic diagram of the crushing roller structure of this utility model;

[0018] Figure 5 This is a cross-sectional view of the crushing mechanism of this utility model;

[0019] Figure 6 This is a cross-sectional view of the crushing roller of this utility model;

[0020] Figure 7 This is a schematic diagram of the extrusion roller structure of this utility model;

[0021] Figure 8This is a schematic diagram of the elastic rod structure of this utility model.

[0022] The following are the labels in the diagram: 101, crushing box; 102, feed inlet; 103, discharge outlet; 104, first crushing tooth; 200, crushing mechanism; 201, rotating shaft; 202, crushing roller; 203, second crushing tooth; 2031, gap groove; 204, driven gear; 205, first mounting plate; 206, motor; 207, driving gear; 300, anti-blocking mechanism; 301, elastic rod; 3011, sleeve rod; 3012, telescopic rod; 3013, spring; 302, extrusion roller; 3021, convex part; 3022, concave part; 303, fixing rod; 304, second mounting plate; 305, extension groove; 306, extension hole. Detailed Implementation

[0023] like Figures 1 to 8 As shown, this utility model relates to a rare earth iron oxide raw material crushing equipment, including a crushing box 101, a crushing mechanism 200 disposed within the crushing box 101, and an anti-blocking mechanism 300 disposed within the crushing mechanism 200. The crushing box 101 is a frustum-shaped structure with a larger upper part and a smaller lower part. The upper end of the crushing box 101 is provided with a feed inlet 102, and the lower end of the crushing box 101 is provided with a discharge outlet 103. The inner wall of the crushing box 101 is provided with an array of first crushing teeth 104. The crushing mechanism 200 includes a rotating shaft 201 rotatably mounted on the upper and lower inner walls of the crushing box 101 and a crushing roller 202 mounted between the rotating shaft 201. The outer surface of the crushing roller 202 is provided with an array of second crushing teeth 203. The anti-blocking mechanism 300 includes an elastic rod 301 and a pressing roller 302, with the pressing roller 302 disposed inside the crushing roller 202. This invention utilizes the first and second spiral-shaped crushing teeth to efficiently shear raw materials, preventing accumulation and improving processing efficiency. The gradual design of the tooth size and spacing achieves a progression from coarse to fine crushing, significantly improving the crushing effect. The elastic rod 301 works in conjunction with the extrusion roller 302 to prevent clogging and also enhances crushing, meeting production needs.

[0024] Specifically, both the first crushing tooth 104 and the second crushing tooth 203 are spirally arranged along their long axis. The spiral directions of the first crushing tooth 104 and the second crushing tooth 203 are opposite. The width and depth of the first crushing tooth 104 and the second crushing tooth 203 gradually decrease from top to bottom, and the distance between the first crushing tooth 104 and the second crushing tooth 203 gradually decreases from top to bottom. The opposite spiral directions of the first crushing tooth 104 and the second crushing tooth 203 create an interlaced shearing path during the rotation of the crushing roller 202. After the raw material enters the crushing chamber 101, it is repeatedly pulled and sheared by the two sets of spiral teeth. Compared with the traditional straight tooth structure, it can more efficiently crush large pieces of raw material, especially suitable for materials with high hardness such as rare earth iron oxide. Secondly, the spiral structure can generate axial pushing force through the rotation of the teeth, causing the raw material to move gradually along the axial direction (from top to bottom) of the crushing chamber 101. The reverse spiral design avoids the local accumulation of raw material and ensures continuous crushing process. Okay, to improve the processing efficiency of the equipment, the upper teeth are wider and deeper, and the spacing is also larger, which is suitable for coarse crushing of large raw materials and quickly crushing the raw materials to medium particle size. The width and depth of the lower teeth gradually decrease, and the spacing narrows, forming a fine crushing area. The gradually smaller spacing between the teeth from top to bottom means that the effective crushing gap between the crushing roller 202 and the inner wall gradually decreases. During the rotation, the extrusion pressure on the raw materials gradually increases. Combined with the friction of the tooth surface, the particles can be further ground to a finer particle size, meeting the high precision requirements for raw material particle size in the production of rare earth iron oxide.

[0025] Furthermore, the rotating shaft 201 at the upper end of the crushing roller 202 extends out of the crushing box 101 and is equipped with a driven gear 204. The rotating shaft 201 is hollow. A first mounting plate 205 is provided at the upper end of the crushing box 101, and a motor 206 is provided at the upper end of the first mounting plate 205. A drive gear 207 is installed at the end of the output shaft of the motor 206, and the drive gear 207 is meshed with the driven gear 204 for transmission. When the motor 206 operates, it can make the drive gear 207 rotate, which can drive the driven gear 204 to rotate, thereby making the crushing roller 202 rotate.

[0026] It is worth noting that a gap groove 2031 is formed between the second crushing teeth 203, an installation cavity is provided inside the crushing roller 202, an extension groove 305 is opened inside the crushing roller 202, and an extension hole 306 communicating with the extension groove 305 is opened on the outer surface of the crushing roller 202 within the gap groove 2031. An elastic rod 301 is located within the extension groove 305 and the extension hole 306. The elastic rod 301 is provided to squeeze the material located in the gap groove 2031, prevent the gap groove 2031 from being blocked, and ensure the crushing effect of the material.

[0027] It is worth noting that the elastic rod 301 includes a sleeve rod 3011 and a telescopic rod 3012 disposed within the sleeve rod 3011. The telescopic rod 3012 extends from the extension hole 306 out of the crushing roller 202. The front end of the sleeve rod 3011 is spherically shaped, and a spring 3013 is disposed within the sleeve rod 3011. The end of the spring 3013 is connected to the telescopic rod 3012. The spherical shape of the front end of the sleeve rod 3011 can reduce the friction of compression. When the front end of the sleeve rod 3011 is compressed, the telescopic rod 3012 can extend outward of the crushing roller 202, thereby allowing the telescopic rod 3012 to compress the material located in the gap groove 2031. This prevents the material from clogging in the gap groove 2031. The spring 3013 can buffer the compressive force and prevent rigid compression from damaging the elastic rod 301.

[0028] It is worth noting that a fixing rod 303 is provided at the upper end of the extrusion roller 302. The fixing rod 303 extends from the rotating shaft 201 out of the crushing box 101. A second mounting plate 304 is provided at the upper end of the crushing box 101. The end of the fixing rod 303 is fixedly connected to the second mounting plate 304. The outer surface of the extrusion roller 302 is arrayed with convex parts 3021 and concave parts 3022, both of which are arc-shaped. When the crushing roller 202 rotates, the elastic rod 301 can move in a circular motion. During the rotation, the front end of the sleeve rod 3011 can be squeezed by the convex part 3021 of the extrusion roller 302, thereby causing the elastic rod 301 to extend outward for anti-blocking. When the front end of the sleeve rod 3011 is located at the concave part 3022, it can return to its original position under the action of the spring 3013, thus realizing the cyclic extrusion work of the elastic rod 301. This not only prevents the gap groove 2031 from blocking, but also ensures the crushing effect and efficiency of the material.

[0029] Working Principle: This embodiment provides a rare earth iron oxide raw material crushing device. In use, the rare earth iron oxide raw material is first poured into the crushing box 101 through the feed inlet 102. At this time, the motor 206 is started, and the output shaft of the motor 206 drives the drive gear 207 to rotate. The drive gear 207 meshes with the driven gear 204, thereby causing the crushing roller 202 mounted on the rotating shaft 201 to start rotating. After the raw material enters the crushing box 101, it enters the crushing area composed of the first crushing tooth 104 and the second crushing tooth 203. Since the first crushing tooth 104 and the second crushing tooth 203 are spirally arranged along the long axis and the spiral directions are opposite... Conversely, when the crushing roller 202 rotates, the two sets of spiral teeth exert an interlaced shearing force on the raw material, repeatedly pulling and shearing it like scissors, initially crushing large pieces of material. Simultaneously, the rotation of the spiral teeth generates an axial pushing force, causing the raw material to move gradually from top to bottom along the crushing chamber 101. Because the width, depth, and spacing of the first crushing tooth 104 and the second crushing tooth 203 gradually narrow from top to bottom, the raw material undergoes initial coarse crushing in the wider, deeper, and more spaced spaces between the teeth in the upper part of the crushing chamber 101, rapidly crushing it to a medium particle size. Subsequently, in the lower region where the tooth spacing gradually decreases, it experiences greater crushing. The extrusion pressure and stronger friction further grind the material into finer particles, meeting the particle size requirements for rare earth iron oxide production. During the crushing process, material blockage may occur in the gap groove 2031 between the second crushing teeth 203. This requires the anti-blocking mechanism 300 to function. When the crushing roller 202 rotates, the elastic rod 301 will move in a circular motion with the crushing roller 202. During the movement, the front end of the sleeve rod 3011 will contact the convex part 3021 and concave part 3022 on the outer surface of the extrusion roller 302. When the front end of the sleeve rod 3011 contacts the convex part 3021, it will be squeezed, causing the telescopic rod 3012 to be compressed. The elastic force of the spring 3013 extends outward to the crushing roller 202, squeezing the material located in the gap groove 2031 and pushing out the blocked material to prevent the gap groove 2031 from becoming blocked. When the front end of the sleeve rod 3011 moves to the concave part 3022, the telescopic rod 3012 will retract under the action of the spring 3013, so that the elastic rod 301 returns to its original position. This cycle repeats to ensure that the gap groove 2031 is not blocked, maintain the smooth operation of the crushing work, and also ensure the crushing effect and efficiency of the material. After being fully crushed, the rare earth iron oxide raw material is finally discharged from the discharge port 103 at the lower end of the crushing box 101, completing the entire crushing process.

[0030] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A rare earth iron oxide raw material crushing equipment, characterized in that, The device includes a crushing box (101), a crushing mechanism (200) installed inside the crushing box (101), and an anti-blocking mechanism (300) installed inside the crushing mechanism (200). The crushing box (101) is a frustum-shaped structure with a larger upper part and a smaller lower part. The upper end of the crushing box (101) is provided with a feed inlet (102), and the lower end of the crushing box (101) is provided with a discharge outlet (103). The inner wall of the crushing box (101) is provided with an array of first crushing teeth (104). The crushing mechanism (200) includes a rotating shaft (201) rotatably installed on the upper and lower inner walls of the crushing box (101) and a crushing roller (202) installed between the rotating shaft (201). The outer surface of the crushing roller (202) is provided with an array of second crushing teeth (203). The anti-blocking mechanism (300) includes an elastic rod (301) and a squeezing roller (302). The squeezing roller (302) is installed inside the crushing roller (202).

2. The rare earth iron oxide raw material pulverizing apparatus according to claim 1, wherein The first crushing tooth (104) and the second crushing tooth (203) are both spirally arranged along the long axis direction. The spiral directions of the first crushing tooth (104) and the second crushing tooth (203) are opposite. The width of the first crushing tooth (104) and the second crushing tooth (203) gradually narrows from top to bottom. The depth of the first crushing tooth (104) and the second crushing tooth (203) gradually decreases from top to bottom. The distance between the first crushing tooth (104) and the second crushing tooth (203) gradually decreases from top to bottom.

3. The rare earth iron oxide raw material pulverizing apparatus according to claim 2, wherein The rotating shaft (201) at the upper end of the crushing roller (202) extends out of the crushing box (101) and is equipped with a driven gear (204). The rotating shaft (201) is hollow. A first mounting plate (205) is provided at the upper end of the crushing box (101). A motor (206) is provided at the upper end of the first mounting plate (205). A drive gear (207) is installed at the end of the output shaft of the motor (206). The drive gear (207) and the driven gear (204) are meshed and connected for transmission.

4. The rare earth iron oxide raw material pulverizing apparatus according to claim 3, wherein A gap groove (2031) is formed between the second crushing teeth (203). An installation cavity is provided inside the crushing roller (202). An extension groove (305) is opened inside the crushing roller (202). An extension hole (306) communicating with the extension groove (305) is opened in the gap groove (2031) on the outer surface of the crushing roller (202). The elastic rod (301) is located in the extension groove (305) and the extension hole (306).

5. The rare earth iron oxide raw material pulverizing apparatus according to claim 4, wherein The elastic rod (301) includes a sleeve rod (3011) and a telescopic rod (3012) disposed within the sleeve rod (3011). The telescopic rod (3012) extends from the extension hole (306) to produce the crushing roller (202). The front end of the sleeve rod (3011) is spherical. A spring (3013) is disposed within the sleeve rod (3011), and the end of the spring (3013) is connected to the telescopic rod (3012).

6. The rare earth iron oxide raw material pulverizing apparatus according to claim 5, wherein The upper end of the extrusion roller (302) is provided with a fixed rod (303), the fixed rod (303) extends from the rotating shaft (201) to the crushing box (101), the upper end of the crushing box (101) is provided with a second mounting plate (304), the tail end of the fixed rod (303) is fixedly connected with the second mounting plate (304), the outer surface of the extrusion roller (302) is provided with a convex part (3021) and a concave part (3022), and the convex part (3021) and the concave part (3022) are both provided with arc surfaces.

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