A limestone powder processing device with a magnetic separation structure

Abstract

This utility model relates to the field of limestone powder processing technology, and in particular to a limestone powder processing device with a magnetic separation structure. It includes a base on which a processing mechanism is mounted for limestone powder processing. The processing mechanism includes a magnetic separation component, comprising an inclined hopper mounted on the base. The inclined hopper has an inlet at its top rear end, an outlet at its bottom front end, and a chip discharge port at its bottom rear end. Several electromagnetic plates arranged in an array are rotatably mounted below the rear end of the inclined hopper. Support rods are fixed to the outer ends of the electromagnetic plates, and each support rod is pivotally connected to the other via a connecting rod. A first servo motor is mounted on the outer wall of the inclined hopper to drive one of the electromagnetic plates to rotate. The device uses magnetic separation technology to automatically remove metallic impurities from the limestone powder: as the raw material slides down, it electromagnetically attracts iron; after saturation, it automatically cuts off power and discharges slag, achieving continuous and efficient iron removal, avoiding downtime for cleaning, and ensuring powder purity.

Description

Technical Field

[0001] This utility model relates to the field of limestone powder processing technology, specifically to a limestone powder processing device with a magnetic separation structure. Background Technology

[0002] Limestone powder, as an important industrial raw material, is widely used in building materials, chemical industry, metallurgy and other fields. Its purity directly affects the quality of the final product. During the mining and processing of limestone, iron impurities are often mixed into the raw material. These metal inclusions not only affect the chemical properties of the powder, but may also cause wear and tear on subsequent production equipment. Therefore, the iron removal treatment of limestone powder is an important step in industrial production.

[0003] According to CN211755507U, a limestone powder production integrated iron removal equipment is disclosed. This technology discloses a technical solution including a support frame, a feeding system, a crushing mechanism, an iron removal mechanism, and a receiving water tank. The support frame includes a bearing box and support legs. The feeding system includes a feeding port, a sliding plate, a fixed box, a blower motor, a connecting shaft, and fan blades. The crushing mechanism includes a crushing motor, a connecting shaft, a fixed rod, and a crushing plate. The iron removal mechanism includes a baffle plate, a screen plate, a fixed plate, a lifting rod, and a strong magnet. The receiving water tank includes a water tank, an air inlet pipe, and an air outlet pipe. It has the technical effect of "being able to remove iron during the limestone crushing process and increase the purity of the product".

[0004] Existing magnetic separation equipment requires frequent shutdowns for manual cleaning of metal impurities. This not only seriously affects production efficiency but also increases labor maintenance costs. Furthermore, untimely cleaning can easily lead to secondary mixing of metal impurities into the raw materials, reducing the purity of limestone powder and failing to meet the continuous operation requirements of high-quality industrial production. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a limestone powder processing device with a magnetic separation structure. The device uses magnetic separation technology to automatically remove metallic impurities from limestone powder: iron is electromagnetically adsorbed as the raw material slides down, and the power is automatically cut off and the slag is discharged after saturation, achieving continuous and efficient iron removal, avoiding downtime for cleaning, and ensuring powder purity.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a limestone powder processing device with a magnetic separation structure, comprising a base, on which a processing mechanism is mounted for limestone powder processing, the processing mechanism comprising:

[0007] The magnetic separator includes an inclined hopper mounted on a base. The inclined hopper has a feed inlet at the top rear end, a discharge outlet at the bottom front end, and a chip discharge outlet at the bottom rear end. Several electromagnetic plates arranged in an array are rotatably mounted below the rear end of the inclined hopper. Support rods are fixed to the outer ends of the electromagnetic plates. Each support rod is pivotally connected to the other through the same connecting rod. A first servo motor is mounted on the outer wall of the inclined hopper and is used to drive one of the electromagnetic plates to rotate.

[0008] A crushing assembly, mounted on the magnetic separation assembly, is used for crushing limestone powder.

[0009] A grinding assembly is mounted on the crushing assembly and is used for grinding limestone powder.

[0010] Preferably, the crushing assembly includes a material box fixed to the top of the base, and the discharge port is fixed to the top of the material box. An inner liner is fixed inside the material box. Several material holes are arranged in a circular array on both the left and right sides of the inner liner. A main shaft is rotatably installed between the left and right ends inside the material box. A hammer is fixed to the outer wall of the main shaft. A first transmission pulley is fixed to the right end of the main shaft. A power component is provided on the material box to drive the main shaft to rotate.

[0011] Preferably, the grinding assembly includes a frame fixed to the bottom of the material box, a horizontal plate fixed between the left and right ends inside the frame, a grinding disc rotatably mounted on the upper left and right sides of the horizontal plate, a driven bevel gear fixed to the lower end of the grinding disc, a drive shaft rotatably mounted between the left and right ends of the bottom of the material box via a bearing seat, a driving bevel gear fixed to the outer wall of both ends of the drive shaft and meshing with the driven bevel gear, a second drive pulley fixed to the right end of the drive shaft, and a second belt installed between the second drive pulley and the first drive pulley.

[0012] Preferably, the two grinding discs are located directly below the left and right feed holes, respectively.

[0013] Preferably, the power component includes a housing fixed to the left end of the material box, a secondary shaft rotatably mounted on the housing via a bearing seat, a driven pulley fixed to the left end of the secondary shaft, a geared motor mounted on the top of the base, a driving pulley fixed to the output end of the geared motor, a first belt installed between the driving pulley and the driven pulley, a driving gear fixed to the right end of the secondary shaft, and a driven gear fixed to the left end of the main shaft and meshing with the driving gear for transmission.

[0014] Preferably, the processing mechanism further includes a collection trough placed below the material bin.

[0015] Beneficial effects

[0016] This invention provides a limestone powder processing device with a magnetic separation structure. Compared with the prior art, it has the following advantages:

[0017] 1. After limestone powder enters the inclined hopper through the feed inlet, it slides naturally down the inclined hopper wall. At this time, the energized electromagnetic plates generate a strong magnetic field, which effectively adsorbs metal impurities in the raw material, while the pure limestone powder continues to slide to the discharge port for subsequent processes. When the electromagnetic plates are saturated, the first servo motor drives one of the electromagnetic plates to rotate. Through the linkage mechanism of the support rod and connecting rod, all electromagnetic plates are rotated synchronously. At this time, the power is cut off to make the magnetic field disappear. The adsorbed metal impurities are discharged from the chip discharge port under the action of gravity, realizing automatic slag removal. By using an array of electromagnetic plates, not only is the adsorption area increased to ensure the removal rate of metal impurities, but the linkage rotation mechanism controlled by the servo motor also enables rapid unloading, avoiding the defects of traditional magnetic separation equipment that require manual cleaning by stopping the machine.

[0018] 2. After magnetic separation, the limestone powder falls from the discharge port into the inner liner of the feed box. The power unit drives the main shaft to rotate at high speed, which drives the hammer to powerfully crush the raw material in the inner liner. During the crushing process, the powder that meets the particle size requirements falls through the circular array of feed holes, while the particles that do not meet the requirements continue to be crushed by the hammer in the inner liner. The crushed limestone powder falls into the frame seat through the feed holes. At this time, the first transmission pulley drives the second transmission pulley to rotate through the second belt. The transmission shaft rotates accordingly and drives the driven bevel gear through the active bevel gear at both ends, so that the grinding discs on the left and right sides rotate synchronously to grind the crushed limestone powder. The ground limestone powder falls into the collection tank for collection. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the processing mechanism in this utility model;

[0021] Figure 3 This is a cross-sectional structural diagram of the processing mechanism in this utility model;

[0022] Figure 4 This is a cross-sectional structural diagram of the material box in this utility model;

[0023] Figure 5 This is a schematic diagram of the magnetic separation component in this utility model.

[0024] In the diagram: 1. Base; 2. Processing mechanism; 21. Magnetic separation component; 211. Inclined hopper; 212. Feed inlet; 213. Discharge outlet; 214. Chip discharge port; 215. Electromagnetic plate; 216. Support rod; 217.

[0025] 218. Connecting rod; 22. First servo motor; 22. Crushing assembly; 221. Feed box; 222. Inner liner; 223. Feed hole; 224. Main shaft; 225. Hammer; 226. First transmission pulley; 227. Power component; 2271. Housing; 2272. Countershaft; 2273. Driven pulley; 2274. Gearbox; 2275. Drive pulley; 2276. First belt; 2277. Drive gear; 2278. Driven gear; 23. Grinding assembly; 231. Frame base; 232. Horizontal plate; 233. Grinding disc; 234. Driven bevel gear; 235. Drive shaft; 236. Driven bevel gear; 237. Second transmission pulley; 238. Second belt; 24. Collection trough. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0027] Please see Figure 1 - Figure 5 This utility model provides a technical solution: a limestone powder processing device with a magnetic separation structure, including a base 1, a processing mechanism 2 disposed on the base 1 for limestone powder processing, the processing mechanism 2 including:

[0028] The magnetic separator 21 includes an inclined hopper 211 mounted on a base 1. The inclined hopper 211 has a feed inlet 212 at the top rear end, a discharge outlet 213 at the bottom front end, and a chip discharge outlet 214 at the bottom rear end. Several electromagnetic plates 215 arranged in an array are rotatably mounted below the rear end inside the inclined hopper 211. Support rods 216 are fixed to the outer ends of the electromagnetic plates 215. Each support rod 216 is pivotally connected to the other through the same connecting rod 217. A first servo motor 218 is mounted on the outer wall of the inclined hopper 211 and is used to drive one of the electromagnetic plates 215 to rotate.

[0029] Crushing component 22 is mounted on magnetic separation component 21 and is used for crushing limestone powder;

[0030] The grinding component 23 is mounted on the crushing component 22 and is used for grinding limestone powder.

[0031] In this embodiment, after the limestone powder raw material enters the inclined hopper 211 through the feed inlet 212, it slides down naturally along the inclined hopper wall. At this time, the energized electromagnetic plate 215 generates a strong magnetic field, which effectively adsorbs the metal impurities in the raw material, while the pure limestone powder continues to slide down to the discharge outlet 213 to enter the subsequent process.

[0032] When the electromagnetic plate 215 is saturated with adsorption, the first servo motor 218 drives one of the electromagnetic plates 215 to rotate. Through the linkage mechanism of the support rod 216 and the connecting rod 217, all the electromagnetic plates 215 are rotated synchronously. At this time, the power is cut off to make the magnetic field disappear. The adsorbed metal impurities are discharged from the chip discharge port 214 under the action of gravity, realizing automatic slag removal. By using an array of electromagnetic plates 215, not only is the adsorption area increased and the metal impurity removal rate ensured, but the linkage rotation mechanism controlled by the servo motor 218 also enables rapid unloading, avoiding the defects of traditional magnetic separation equipment that require shutdown for manual cleaning.

[0033] Specifically, the crushing assembly 22 includes a material box 221 fixed to the top of the base 1, and a discharge port 213 fixed to the top of the material box 221. An inner liner 222 is fixed inside the material box 221. Several material holes 223 arranged in a circular array are opened on both the left and right sides inside the inner liner 222. A main shaft 224 is rotatably installed between the left and right ends inside the material box 221. A hammer 225 is fixed to the outer wall of the main shaft 224. A first transmission pulley 226 is fixed to the right end of the main shaft 224. A power component 227 is provided on the material box 221 and is used to drive the main shaft 224 to rotate.

[0034] In this embodiment, the limestone powder after magnetic separation falls from the discharge port 213 into the inner liner 222 of the material box 221. The power component 227 drives the main shaft 224 to rotate at high speed, which drives the hammer head 225 to forcefully crush the raw material in the inner liner 222. During the crushing process, the powder that meets the particle size requirements falls through the material holes 223 arranged in a circular array, while the particles that do not meet the requirements continue to be crushed by the hammer head 225 in the inner liner 222.

[0035] Specifically, the grinding assembly 23 includes a frame base 231 fixed to the bottom of the material box 221. A horizontal plate 232 is fixed between the left and right ends inside the frame base 231. A grinding disc 233 is rotatably mounted on both the left and right sides of the upper end of the horizontal plate 232. A driven bevel gear 234 is fixed at the lower end of the grinding disc 233. A drive shaft 235 is rotatably mounted between the left and right ends of the bottom of the material box 221 through a bearing seat. A driving bevel gear 236 is fixed on the outer wall of both ends of the drive shaft 235 and meshes with the driven bevel gear 234 for transmission. A second drive pulley 237 is fixed to the right end of the drive shaft 235. A second belt 238 is installed between the second drive pulley 237 and the first drive pulley 226.

[0036] In this embodiment, the crushed limestone powder falls into the frame seat 231 through the material hole 223. At this time, the first transmission pulley 226 drives the second transmission pulley 237 to rotate through the second belt 238. The transmission shaft 235 rotates accordingly and drives the driven bevel gear 234 through the active bevel gear 236 at both ends, so that the grinding discs 233 on the left and right sides rotate synchronously to grind the crushed limestone powder.

[0037] Specifically, the two grinding discs 233 are located directly below the two feed holes 223 on the left and right sides, respectively.

[0038] In this embodiment, the two grinding discs 233 are precisely positioned directly below the material holes 223 on the left and right sides of the bottom of the inner liner 222, so that the crushed limestone powder can fall vertically from the material holes 223 into the corresponding grinding area of ​​the grinding disc 233.

[0039] Specifically, the power unit 227 includes a housing 2271 fixed to the left end of the material box 221. A secondary shaft 2272 is rotatably mounted on the housing 2271 via a bearing seat. A driven pulley 2273 is fixed to the left end of the secondary shaft 2272. A geared motor 2274 is mounted on the top of the base 1. A drive pulley 2275 is fixed to the output end of the geared motor 2274. A first belt 2276 is installed between the drive pulley 2275 and the driven pulley 2273. A drive gear 2277 is fixed to the right end of the secondary shaft 2272. A driven gear 2278 is fixed to the left end of the main shaft 224 and meshes with the drive gear 2277 for transmission.

[0040] In this embodiment, the output end of the geared motor 2274 drives the drive pulley 2275 to rotate in conjunction with the first belt 2276, which in turn drives the driven pulley 2273 to rotate. The driven pulley 2273 drives the drive gear 2277 to rotate through the secondary shaft 2272, and the drive gear 2277 drives the main shaft 224 to rotate through the driven gear 2278.

[0041] Specifically, the processing mechanism 2 also includes a collection trough 24 placed below the material bin 221.

[0042] In this embodiment, the ground limestone powder falls into the collection tank 24 for collection.

[0043] The working principle and usage process of this utility model are as follows: First, limestone powder raw material enters the inclined hopper 211 through the feed inlet 212 and slides down the inclined hopper wall naturally. At this time, the energized electromagnetic plate 215 generates a strong magnetic field, which effectively adsorbs metal impurities in the raw material, while the pure limestone powder continues to slide down to the discharge outlet 213 to enter the subsequent process. When the electromagnetic plate 215 is saturated with adsorption, the first servo motor 218 drives one of the electromagnetic plates 215 to rotate. Through the linkage mechanism of the support rod 216 and the connecting rod 217, all electromagnetic plates 215 are driven to rotate synchronously. At this time, the power is cut off to make the magnetic field disappear. The adsorbed metal impurities are discharged from the chip discharge outlet 214 under the action of gravity, realizing automatic slag removal. By using an array of electromagnetic plates 215, not only is the adsorption area increased to ensure the removal rate of metal impurities, but also the linkage rotation mechanism controlled by the servo motor 218 realizes rapid unloading, avoiding the defects of traditional magnetic separation equipment that require manual cleaning by stopping the machine.

[0044] After magnetic separation, the limestone powder falls from the discharge port 213 into the inner liner 222 of the feed box 221. The power unit 227 drives the main shaft 224 to rotate at high speed, which drives the hammer 225 to powerfully crush the raw material in the inner liner 222. During the crushing process, the powder that meets the particle size requirements falls through the material holes 223 arranged in a circular array, while the particles that do not meet the requirements continue to be crushed by the hammer 225 in the inner liner 222.

[0045] The crushed limestone powder falls into the frame seat 231 through the material hole 223. At this time, the first transmission pulley 226 drives the second transmission pulley 237 to rotate through the second belt 238. The transmission shaft 235 rotates accordingly and drives the driven bevel gear 234 through the active bevel gear 236 at both ends, so that the grinding discs 233 on the left and right sides rotate synchronously to grind the crushed limestone powder. The ground limestone powder falls into the collection tank 24 for collection.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A limestone powder processing device with a magnetic separation structure, comprising a base (1), characterized in that: The base (1) is provided with a processing mechanism (2) for limestone powder processing. The processing mechanism (2) includes: The magnetic separation assembly (21) includes an inclined hopper (211) mounted on a base (1). The inclined hopper (211) has a feed inlet (212) at the top rear end, a discharge outlet (213) at the bottom front end, and a chip discharge outlet (214) at the bottom rear end. Several electromagnetic plates (215) arranged in an array are rotatably mounted below the rear end of the inclined hopper (211). Support rods (216) are fixed to the outer ends of the electromagnetic plates (215). Each support rod (216) is pivotally connected to the other through the same connecting rod (217). A first servo motor (218) is mounted on the outer wall of the inclined hopper (211) and is used to drive one of the electromagnetic plates (215) to rotate. Crushing component (22) is mounted on magnetic separation component (21) and used for crushing limestone powder; The grinding assembly (23) is mounted on the crushing assembly (22) and is used for grinding limestone powder.

2. A limestone flour treatment device with a magnetic separation structure according to claim 1, characterized in that: The crushing assembly (22) includes a material box (221) fixed to the top of the base (1), and a discharge port (213) fixed to the top of the material box (221). The material box (221) has an inner liner (222) fixed inside. The inner liner (222) has several material holes (223) arranged in a circular array on both the left and right sides. A main shaft (224) is rotatably installed between the left and right ends inside the material box (221). A hammer (225) is fixed to the outer wall of the main shaft (224). A first transmission pulley (226) is fixed to the right end of the main shaft (224). A power component (227) is provided on the material box (221) and is used to drive the main shaft (224) to rotate.

3. A limestone flour treatment device with a magnetic separation structure according to claim 2, characterized in that: The grinding assembly (23) includes a frame base (231) fixed to the bottom of the material box (221). A horizontal plate (232) is fixed between the left and right ends inside the frame base (231). A grinding disc (233) is rotatably mounted on both the left and right sides of the upper end of the horizontal plate (232). A driven bevel gear (234) is fixed at the lower end of the grinding disc (233). A transmission shaft (235) is rotatably mounted between the left and right ends of the bottom of the material box (221) through a bearing seat. A driving bevel gear (236) is fixed on the outer wall of both ends of the transmission shaft (235) and meshes with the driven bevel gear (234) for transmission. A second transmission pulley (237) is fixed at the right end of the transmission shaft (235). A second belt (238) is installed between the second transmission pulley (237) and the first transmission pulley (226).

4. A limestone flour treatment device with a magnetic separation structure according to claim 3, characterized in that: The two grinding discs (233) are located directly below the two feed holes (223) on the left and right sides, respectively.

5. A limestone fines treatment device with a magnetic separation structure according to claim 2, characterized in that: The power unit (227) includes a housing (2271) fixed to the left end of the material box (221). A secondary shaft (2272) is rotatably mounted on the housing (2271) via a bearing seat. A driven pulley (2273) is fixed to the left end of the secondary shaft (2272). A geared motor (2274) is mounted on the top of the base (1). A drive pulley (2275) is fixed to the output end of the geared motor (2274). A first belt (2276) is installed between the drive pulley (2275) and the driven pulley (2273). A drive gear (2277) is fixed to the right end of the secondary shaft (2272). A driven gear (2278) is fixed to the left end of the main shaft (224) and meshes with the drive gear (2277) for transmission.

6. A limestone fines treatment device with a magnetic separation structure according to claim 2, characterized in that: The processing mechanism (2) also includes a collection trough (24) placed below the material bin (221).

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