Lime powder processing impurity removing device

Abstract

The utility model relates to the technical field of lime powder processing impurity removing devices, in particular to a lime powder processing impurity removing device which is characterized in that iron ore in lime is adsorbed by starting a magnetic attraction mechanism in the lime conveying process and discharged, lime powder is discharged into a screening mechanism, and the screening mechanism is used for screening the lime powder. The auxiliary mechanism and the screening mechanism are started to be matched to screen the lime powder, and the auxiliary mechanism adsorbs scrap iron in the lime powder and discharges the scrap iron, so that the practicability of the equipment is improved; comprising a crushing mechanism; the crushing mechanism and the magnetic attraction mechanism are installed above the conveying mechanism, the magnetic attraction mechanism is located on the right side of the crushing mechanism, the rolling mechanism is located on the right side of the conveying mechanism, the rolling mechanism is installed at the top end of the screening mechanism, and the auxiliary mechanism is installed at the top end of the screening mechanism; the auxiliary mechanism is located on the right side of the rolling mechanism.

Description

Technical Field

[0001] This utility model relates to the technical field of impurity removal devices for lime powder processing, and in particular to an impurity removal device for lime powder processing. Background Technology

[0002] In the processing of lime powder, the removal of impurities is a crucial step, directly affecting the quality and final use of the lime powder. Impurities may be generated during processing, such as incompletely decomposed limestone particles and ferromagnetic impurities. These impurities need to be removed through methods such as screening and magnetic separation to ensure the purity and quality of the lime powder.

[0003] For example, the prior art represented by the lime powder processing impurity removal device disclosed in the utility model patent application number CN202322266390.4 mainly consists of a processing box, a base, a discharge hopper, a motor housing, a rotating shaft, a stirring roller, and a first mounting groove. The removal of lime powder processing impurities is achieved through the cooperation of the processing box, base, discharge hopper, motor housing, rotating shaft, stirring roller, and first mounting groove.

[0004] During the processing of limestone powder, iron ore may be mixed in with the limestone. Therefore, an iron ore removal device is needed. However, traditional iron ore removal devices are difficult to remove the iron filings wrapped in limestone. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a lime powder processing impurity removal device that, during the lime conveying process, uses a magnetic attraction mechanism to adsorb and discharge iron ore from limestone, discharges lime powder into a screening mechanism, and uses an auxiliary mechanism and the screening mechanism to screen the lime powder. The auxiliary mechanism also adsorbs and discharges iron filings from the lime powder, thereby improving the practicality of the equipment.

[0006] This utility model discloses a lime powder processing impurity removal device, including a crushing mechanism; it also includes a conveying mechanism, a magnetic attraction mechanism, a roller pressing mechanism, a screening mechanism, and an auxiliary mechanism. The crushing mechanism and the magnetic attraction mechanism are installed above the conveying mechanism, with the magnetic attraction mechanism located to the right of the crushing mechanism. The roller pressing mechanism is located to the right of the conveying mechanism and is mounted at the top of the screening mechanism. The auxiliary mechanism is installed at the top of the screening mechanism and is located to the right of the roller pressing mechanism. Limestone is placed in the crushing mechanism and crushed by activating the crushing mechanism. The crushed limestone is then placed in the conveying mechanism and conveyed to the roller pressing mechanism. During the conveying process, the magnetic attraction mechanism is activated to adsorb and discharge the iron ore in the limestone. The roller pressing mechanism is activated to press the crushed limestone to form lime powder, which is then discharged into the screening mechanism. The auxiliary mechanism and the screening mechanism work together to screen the lime powder, and the auxiliary mechanism adsorbs and discharges the iron filings in the lime powder, thus improving the practicality of the equipment.

[0007] Preferably, the crushing mechanism includes a crushing box, two sets of first guide plates, two sets of crushing rollers, two sets of first gears, and a first motor. The two sets of first guide plates are respectively inclinedly installed on the top of the crushing box, the two sets of crushing rollers are respectively rotatably installed on the side wall of the crushing box, the inner rings of the two sets of first gears are respectively installed on the front end of the two sets of crushing rollers, and the outer rings of the two sets of first gears mesh with each other. The output end of the first motor is connected to the front end of one of the crushing rollers. Limestone is discharged into the crushing box through the two sets of first guide plates. By starting the first motor and meshing the two sets of first gears, the two sets of crushing rollers crush the limestone. The crushed limestone is discharged into the conveying mechanism through the crushing box, improving the practicality of the equipment.

[0008] Preferably, the conveying mechanism includes a support frame, two sets of conveying shafts, a conveyor belt, and a second motor. The top of the support frame has an opening, and the inside of the support frame has a cavity. The two ends of the two sets of conveying shafts are respectively rotatably mounted on the inner wall of the support frame. The conveyor belt is fitted onto the outer side of the two sets of conveying shafts. The second motor is mounted on the outer wall of the support frame, and the output end of the second motor is connected to the front end of one of the conveying shafts. The support frame supports the two sets of conveying shafts, and limestone is discharged onto the conveyor belt. By starting the second motor, the two sets of conveying shafts are rotated respectively, and the limestone is conveyed through the conveyor belt and discharged into the roller pressing mechanism, thereby improving the practicality of the equipment.

[0009] Preferably, the magnetic attraction mechanism includes a bracket, a slide, a lead screw, a third motor, a cylinder, a mounting plate, multiple magnets, a collection box, and multiple cleaning rings. The top of the slide is mounted on the bracket, the lead screw is installed inside the slide, and a slider is provided on the lead screw. The slider of the lead screw is slidably mounted on the inner wall of the slide. The right end of the lead screw is connected to the output end of the third motor. The top of the cylinder is mounted on the slider of the lead screw, the top of the mounting plate is mounted on the bottom of the cylinder, the tops of the multiple magnets are respectively mounted on the bottom of the mounting plate, and the upper parts of the multiple magnets are non-magnetic. The collection box is located to the right of the multiple magnets. Each cleaning ring is installed on the inner wall of the collection box. Multiple magnets are raised and lowered via extension and retraction cylinders and mounting plates. As the magnets descend to the conveyor belt, they attract iron impurities from the limestone. The extension cylinders then discharge the iron impurities from the magnets. A third motor rotates the lead screw, which, guided by a slide groove, moves the cylinders above the collection box. The cylinders then extend, causing the magnets to descend. The combined action of the magnets and cleaning rings discharges the iron impurities from the magnets, which are then collected in the collection box, improving the equipment's practicality.

[0010] Preferably, the roller pressing mechanism includes a roller pressing box, a second guide plate, two sets of grinding rollers, a second gear, and a fourth motor. The second guide plate is inclinedly installed at the top of the roller pressing box. The two sets of grinding rollers are rotatably installed on the side wall of the roller pressing box. The inner rings of the two sets of second gears are respectively installed at the front ends of the two sets of grinding rollers, and the outer rings of the two sets of second gears mesh with each other. The output end of the fourth motor is connected to the front end of one of the grinding rollers. The crushed limestone is discharged into the roller pressing box through the second guide plate. By starting the fourth motor and engaging the two sets of second gears, the two sets of grinding rollers are used to press the crushed limestone to form lime powder. The lime powder is discharged into the screening mechanism through the first gear, improving the practicality of the equipment.

[0011] Preferably, the screening mechanism includes a discharge box, a screening barrel, and a discharge plate. A discharge port is provided on the right side wall of the discharge box, the screening barrel is installed inside the discharge box, a valve is provided on the output end of the screening barrel, and the discharge plate is installed at an incline on the inner wall of the discharge box. Lime powder is discharged into the screening barrel, and the lime powder is screened with the help of an auxiliary mechanism. Small particles of lime powder are discharged through the discharge plate to the discharge box, while larger particles of lime powder are discharged through the screening barrel, thereby improving the practicality of the equipment.

[0012] Preferably, the auxiliary mechanism includes an air pump, a three-way connector, a rotary joint, a rotating pipe, multiple electromagnets, two sets of third gears, a fifth motor, and an exhaust pipe. The input end of the three-way connector is installed on the output end of the air pump. The three-way connector has two sets of output ends, each with a valve. The input end of the rotary joint is connected to one of the output ends of the three-way connector, and the output end of the rotary joint is connected to the input end of the rotating pipe. The rotating pipe has multiple exhaust pipes. Multiple electromagnets are installed on the outer wall of the rotating pipe. The inner ring of one third gear is installed on the upper part of the rotating pipe, and the inner ring of another third gear is installed on the output end of the fifth motor. The end moves upwards, and two sets of third gears mesh respectively. The input end of the exhaust pipe is connected to the other output end of the three-way pipe, and the exhaust pipe is equipped with multiple output ends. The rotating pipe and multiple electromagnets are located inside the screening barrel, and the exhaust pipe is installed on the inner wall of the discharge box. Gas is generated by starting the air pump, and discharged through the three-way pipe to the rotating joint and then into the rotating pipe. The gas is discharged through the rotating pipe to screen the lime powder in the screening barrel. The fifth motor is started to make the rotating pipe rotate slowly through the two sets of third gears. The iron impurities in the lime powder are adsorbed by multiple electromagnets. The gas is discharged through the rotating joint into the exhaust pipe and then discharged through the exhaust pipe to clean the screening barrel, improving the practicality of the equipment.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: limestone is placed in the crushing mechanism and crushed by starting the crushing mechanism. The crushed limestone is placed in the conveying mechanism and conveyed to the roller pressing mechanism. During the conveying process, the magnetic attraction mechanism is started to adsorb the iron ore in the limestone and discharge it. The roller pressing mechanism is started to press the crushed limestone to form lime powder. The lime powder is discharged into the screening mechanism. The auxiliary mechanism and the screening mechanism work together to screen the lime powder. The auxiliary mechanism also adsorbs the iron filings in the lime powder and discharges them, thus improving the practicality of the equipment. Attached Figure Description

[0014] Figure 1 This is an isometric sectional view of the present invention;

[0015] Figure 2 This is an isometric schematic diagram of the crushing mechanism of this utility model;

[0016] Figure 3 This is an isometric sectional view of the conveying mechanism of this utility model;

[0017] Figure 4 This is an isometric schematic diagram of the magnetic attraction mechanism of this utility model;

[0018] Figure 5 This is an isometric schematic diagram of the roller pressing mechanism of this utility model;

[0019] Figure 6 This is a front sectional view of the screening mechanism of this utility model;

[0020] Figure 7 This is an isometric schematic diagram of the auxiliary mechanism of this utility model.

[0021] In the attached diagram, the following are labeled: 01, crushing mechanism; 11, crushing box; 12, first guide plate; 13, crushing roller; 14, first gear; 15, first motor; 02, conveying mechanism; 21, support frame; 22, conveyor shaft; 23, conveyor belt; 24, second motor; 03, magnetic attraction mechanism; 31, bracket; 32, chute; 33, lead screw; 34, third motor; 35, cylinder; 36, mounting plate; 37, magnet; 38, collection box. 39. Cleaning ring; 04. Roller pressing mechanism; 41. Roller pressing box; 42. Second guide plate; 43. Grinding roller; 44. Second gear; 45. Fourth motor; 05. Screening mechanism; 51. Discharge box; 52. Screening barrel; 53. Discharge plate; 06. Auxiliary mechanism; 61. Air pump; 62. T-pipe; 63. Rotary joint; 64. Rotary pipe; 65. Electromagnet; 66. Third gear; 67. Fifth motor; 68. Exhaust pipe. Detailed Implementation

[0022] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0023] Example 1

[0024] like Figure 1 As shown, a lime powder processing impurity removal device includes a crushing mechanism 01; it also includes a conveying mechanism 02, a magnetic suction mechanism 03, a roller pressing mechanism 04, a screening mechanism 05, and an auxiliary mechanism 06. The crushing mechanism 01 and the magnetic suction mechanism 03 are installed above the conveying mechanism 02, the magnetic suction mechanism 03 is located to the right of the crushing mechanism 01, the roller pressing mechanism 04 is located to the right of the conveying mechanism 02, the roller pressing mechanism 04 is installed at the top of the screening mechanism 05, and the auxiliary mechanism 06 is installed at the top of the screening mechanism 05, and the auxiliary mechanism 06 is located to the right of the roller pressing mechanism 04.

[0025] Limestone is placed in the crushing mechanism 01 and crushed by activating the crushing mechanism 01. The crushed limestone is then placed in the conveying mechanism 02 and conveyed to the roller pressing mechanism 04. During the conveying process, the magnetic attraction mechanism 03 is activated to adsorb the iron ore in the limestone and discharge it. The roller pressing mechanism 04 is activated to press the crushed limestone to form lime powder. The lime powder is discharged into the screening mechanism 05. The auxiliary mechanism 06 is activated in conjunction with the screening mechanism 05 to screen the lime powder. The auxiliary mechanism 06 also adsorbs and discharges the iron filings in the lime powder, improving the practicality of the equipment.

[0026] like Figure 2 As shown, the crushing mechanism 01 includes a crushing box 11, two sets of first guide plates 12, two sets of crushing rollers 13, two sets of first gears 14, and a first motor 15. The two sets of first guide plates 12 are respectively inclinedly installed on the top of the crushing box 11. The two sets of crushing rollers 13 are respectively rotatably installed on the side wall of the crushing box 11. The inner rings of the two sets of first gears 14 are respectively installed on the front end of the two sets of crushing rollers 13, and the outer rings of the two sets of first gears 14 mesh with each other. The output end of the first motor 15 is connected to the front end of one of the crushing rollers 13.

[0027] The limestone is discharged into the crushing box 11 through two sets of first guide plates 12. The first motor 15 is started and the two sets of first gears 14 mesh, causing the two sets of crushing rollers 13 to crush the limestone. The crushed limestone is discharged into the conveying mechanism 02 through the crushing box 11, improving the practicality of the equipment.

[0028] Example 2

[0029] like Figure 3 and Figure 4As shown, based on Embodiment 1, it also includes a conveying mechanism 02 and a magnetic attraction mechanism 03. The conveying mechanism 02 includes a support frame 21, two sets of conveying shafts 22, a conveyor belt 23, and a second motor 24. The top of the support frame 21 is provided with an opening, and the inside of the support frame 21 is provided with a cavity. The two ends of the two sets of conveying shafts 22 are respectively rotatably mounted on the inner wall of the support frame 21. The conveyor belt 23 is fitted on the outer side of the two sets of conveying shafts 22. The second motor 24 is mounted on the outer wall of the support frame 21, and the output end of the second motor 24 is connected to the front end of one of the conveying shafts 22. The magnetic attraction mechanism 03 includes a bracket 31, a slide 32, a lead screw 33, a third motor 34, a cylinder 35, and a mounting plate 36. The system includes multiple magnets 37, a collection box 38, and multiple cleaning rings 39. The top of the slide 32 is mounted on the bracket 31. The lead screw 33 is installed inside the slide 32 and has a slider. The slider of the lead screw 33 is slidably mounted on the inner wall of the slide 32. The right end of the lead screw 33 is connected to the output end of the third motor 34. The top of the cylinder 35 is mounted on the slider of the lead screw 33. The top of the mounting plate 36 is mounted on the bottom end of the cylinder 35. The tops of the multiple magnets 37 are respectively mounted on the bottom end of the mounting plate 36, and the upper parts of the multiple magnets 37 are not magnetic. The collection box 38 is located to the right of the multiple magnets 37, and the multiple cleaning rings 39 are respectively mounted on the inner wall of the collection box 38.

[0030] The support frame 21 supports the two sets of conveyor shafts 22, which discharge limestone onto the conveyor belt 23. By starting the second motor 24, the two sets of conveyor shafts 22 are rotated, and the limestone is conveyed through the conveyor belt 23 and discharged into the roller pressing mechanism 04. By extending and retracting the cylinders 35, the mounting plate 36 causes multiple magnets 37 to rise and fall respectively. By lowering the magnets 37 to the conveyor belt 23, iron impurities in the limestone are adsorbed. The extension cylinder 35 causes the multiple magnets 37 to discharge the iron impurities. By starting the third motor 34, the lead screw 33 is rotated, and the cylinder 35 is moved by the guide chute 32, moving the multiple magnets 37 above the collection box 38. The extension cylinder 35 causes the multiple magnets 37 to fall respectively. The multiple magnets 37 and multiple cleaning rings 39 work together to discharge the iron impurities on the multiple magnets 37. The iron impurities are collected in the collection box 38, improving the practicality of the equipment.

[0031] Example 3

[0032] like Figures 5 to 7As shown, based on Embodiment 1, it also includes a roller pressing mechanism 04, a screening mechanism 05, and an auxiliary mechanism 06. The roller pressing mechanism 04 includes a roller pressing box 41, a second guide plate 42, two sets of grinding rollers 43, a second gear 44, and a fourth motor 45. The second guide plate 42 is inclinedly installed at the top of the roller pressing box 41. The two sets of grinding rollers 43 are respectively rotatably installed on the side wall of the roller pressing box 41. The inner rings of the two sets of second gears 44 are respectively installed at the front ends of the two sets of grinding rollers 43, and the outer rings of the two sets of second gears 44 mesh with each other. The output end of the fourth motor 45 is connected to the front end of one of the grinding rollers 43. The screening mechanism 05 includes a discharge box 51, a screening barrel 52, and a discharge plate 53. A discharge port is provided on the right side wall of the discharge box 51. The screening barrel 52 is installed inside the discharge box 51. A valve is provided on the output end of the screening barrel 52. The discharge plate 53 is inclinedly installed on the inner wall of the discharge box 51. The auxiliary mechanism 06 includes an air pump 61, a three-way pipe 62, a rotary joint 63, a rotary pipe 64, and multiple The system includes an electromagnet 65, two sets of third gears 66, a fifth motor 67, and an exhaust pipe 68. The input end of a three-way pipe 62 is installed on the output end of an air pump 61. The three-way pipe 62 has two sets of output ends, and valves are installed on each of the two sets of output ends. The input end of a rotary joint 63 is connected to one of the output ends of the three-way pipe 62, and the output end of the rotary joint 63 is connected to the input end of a rotating pipe 64. The rotating pipe 64 has multiple exhaust pipes. Multiple electromagnets 65 are installed on the outer wall of the rotating pipe 64. The inner ring of one third gear 66 is installed on the upper part of the rotating pipe 64, and the inner ring of the other third gear 66 is installed on the upper part of the output end of the fifth motor 67. The two sets of third gears 66 are meshed. The input end of an exhaust pipe 68 is connected to the other output end of the three-way pipe 62, and multiple output ends are installed on the exhaust pipe 68. The rotating pipe 64 and multiple electromagnets 65 are located inside a screening tank 52, and the exhaust pipe 68 is installed on the inner wall of a discharge box 51.

[0033] The crushed limestone is discharged into the roller press box 41 via the second guide plate 42. The fourth motor 45 is activated, and two sets of second gears 44 mesh to cause two sets of grinding rollers 43 to press the crushed limestone, forming lime powder. The lime powder is discharged into the screening mechanism 05 via the first gear 14, and then into the screening barrel 52. The auxiliary mechanism 06 performs screening of the lime powder. Smaller particles are discharged through the discharge plate 53 into the discharge box 51, while larger particles are discharged through the screening barrel 52. The gas is generated by starting the air pump 61, and discharged through the three-way pipe 62 to the rotary joint 63 and then into the rotating pipe 64. The gas is discharged through the rotating pipe 64 to screen the lime powder in the screening barrel 52. The fifth motor 67 is started to slowly rotate the rotating pipe 64 through two sets of third gears 66. The iron impurities in the lime powder are adsorbed by multiple electromagnets 65. The gas is discharged through the rotary joint 63 into the exhaust pipe 68 and then discharged through the exhaust pipe 68 to clean the screening barrel 52, thus improving the practicality of the equipment.

[0034] like Figures 1 to 7As shown, this utility model discloses a limestone powder processing impurity removal device. During operation, limestone is first discharged into a crushing box 11 via two sets of first guide plates 12. A first motor 15 is started, engaging two sets of first gears 14 to crush the limestone using two sets of crushing rollers 13. The crushed limestone is then discharged from the crushing box 11 into a conveying mechanism 02. A support frame 21 supports two sets of conveyor shafts 22, discharging the limestone onto a conveyor belt 23. A second motor 24 is started, rotating the two sets of conveyor shafts 22, which then crush the limestone via the conveyor belt 23. The limestone is conveyed into the roller pressing mechanism 04. Then, through the extension and retraction cylinders 35 and the mounting plate 36, multiple magnets 37 are raised and lowered respectively. As the magnets 37 are lowered to the conveyor belt 23, iron impurities in the limestone are adsorbed. The extension cylinders 35 then cause the magnets 37 to discharge the iron impurities. The third motor 34 rotates the lead screw 33, which, guided by the slide 32, moves the cylinders 35 to above the collection box 38. The extension cylinders 35 then lower the magnets 37. The limestone is then discharged through the multiple magnets 37 and multiple cleaning... The iron impurities on multiple magnets 37 are discharged by the ring 39 and collected by the collection box 38. Then, the crushed limestone is discharged into the roller pressing box 41 through the second guide plate 42. By starting the fourth motor 45, two sets of second gears 44 mesh, causing two sets of grinding rollers 43 to press the crushed limestone, turning it into lime powder. The lime powder is discharged into the screening mechanism 05 through the first gear 14, and then into the screening bucket 52. The lime powder is screened by the auxiliary mechanism 06, and the small particles of lime powder are discharged into the discharge box through the discharge plate 53. Larger lime powder particles are discharged through screening chamber 52. Finally, gas is generated by starting air pump 61, which is discharged through three-way pipe 62 to rotary joint 63 and then into rotating pipe 64. The gas is discharged through rotating pipe 64 to screen the lime powder in screening chamber 52. The fifth motor 67 is started to slowly rotate rotating pipe 64 through two sets of third gears 66. Iron impurities in lime powder are adsorbed by multiple electromagnets 65. The gas is discharged through rotary joint 63 to exhaust pipe 68 and then discharged through exhaust pipe 68 to clean screening chamber 52, improving the practicality of the equipment.

[0035] The first motor 15, the second motor 24, the third motor 34, the fourth motor 45, the air pump 61, the electromagnet 65, and the fifth motor 67 of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0036] The main function of this utility model is as follows: during the process of conveying lime, the magnetic attraction mechanism 03 is activated to adsorb the iron ore in the limestone and discharge it, and the lime powder is discharged into the screening mechanism 05. The auxiliary mechanism 06 is activated in conjunction with the screening mechanism 05 to screen the lime powder, and the auxiliary mechanism 06 adsorbs the iron filings in the lime powder and discharges them, thereby improving the practicality of the equipment.

[0037] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A lime powder processing impurity removal device, comprising a crushing mechanism (01); characterized in that, It also includes conveying mechanism (02), magnetic attraction mechanism (03), roller mechanism (04), screening mechanism (05) and auxiliary mechanism (06), crushing mechanism (01) and magnetic attraction mechanism (03) are installed above conveying mechanism (02), magnetic attraction mechanism (03) is located at the right side of crushing mechanism (01), roller mechanism (04) is located at the right side of conveying mechanism (02), roller mechanism (04) is installed at the top of screening mechanism (05), auxiliary mechanism (06) is installed at the top of screening mechanism (05), and auxiliary mechanism (06) is located at the right side of roller mechanism (04).

2. A device for removing impurities from lime fines as claimed in claim 1, wherein, Crushing mechanism (01) includes crushing box (11), two groups of first guide plates (12), two groups of crushing rollers (13), two groups of first gears (14) and first motor (15), two groups of first guide plates (12) are respectively installed on the top of crushing box (11), two groups of crushing rollers (13) are respectively installed on the side wall of crushing box (11), the inner ring of two groups of first gears (14) is respectively installed on the front end of two groups of crushing rollers (13), and the outer ring of two groups of first gears (14) is engaged with each other, the output end of first motor (15) is connected with the front end of one of crushing rollers (13).

3. The apparatus for removing impurities from lime fines as claimed in claim 1, wherein, Conveying mechanism (02) includes support frame (21), two groups of conveying shafts (22), conveying belt (23) and second motor (24), the top of support frame (21) is provided with an opening, the inside of support frame (21) is provided with a cavity, the two ends of two groups of conveying shafts (22) are respectively rotatably installed on the inner wall of support frame (21), conveying belt (23) is sleeved on the outside of two groups of conveying shafts (22), second motor (24) is installed on the outer wall of support frame (21), and the output end of second motor (24) is connected with the front end of one of conveying shafts (22).

4. The device for removing impurities from lime fines according to claim 1, wherein Magnetic attraction mechanism (03) includes bracket (31), chute (32), lead screw (33), third motor (34), air cylinder (35), mounting plate (36), multiple magnets (37), collecting box (38) and multiple cleaning rings (39), the top of chute (32) is installed on bracket (31), lead screw (33) is installed inside chute (32), lead screw (33) is provided with a sliding block, the sliding block of lead screw (33) is slidably installed on the inner wall of chute (32), the right end of lead screw (33) is connected with the output end of third motor (34), the top of air cylinder (35) is installed on the sliding block of lead screw (33), the top of mounting plate (36) is installed on the bottom end of air cylinder (35), the top of multiple magnets (37) is respectively installed on the bottom end of mounting plate (36), and the upper part of multiple magnets (37) has no magnetism, collecting box (38) is located at the right side of multiple magnets (37), and multiple cleaning rings (39) are respectively installed on the inner wall of collecting box (38).

5. The device for removing impurities from lime fines according to claim 1, wherein The rolling mechanism (04) comprises a rolling box (41), a second guide plate (42), two groups of grinding rollers (43), a second gear (44) and a fourth motor (45), the second guide plate (42) is obliquely installed at the top end of the rolling box (41), the two groups of grinding rollers (43) are respectively rotatably installed on the side walls of the rolling box (41), the inner rings of the two groups of second gears (44) are respectively installed at the front ends of the two groups of grinding rollers (43), the outer rings of the two groups of second gears (44) are engaged with each other, and the output end of the fourth motor (45) is connected with the front end of one of the grinding rollers (43).

6. A device for removing impurities from lime fines as claimed in claim 1 wherein, The screening mechanism (05) comprises a discharge box (51), a screening barrel (52) and a discharge plate (53), the right side wall of the discharge box (51) is provided with a discharge port, the screening barrel (52) is installed in the discharge box (51), the output end of the screening barrel (52) is provided with a valve, and the discharge plate (53) is obliquely installed on the inner wall of the discharge box (51).

7. A device for removing impurities from lime fines as claimed in claim 6 wherein, The auxiliary mechanism (06) comprises an air pump (61), a three-way pipe (62), a rotary joint (63), a rotary pipe (64), a plurality of electromagnets (65), two groups of third gears (66), a fifth motor (67) and an exhaust pipe (68), the input end of the three-way pipe (62) is installed on the output end of the air pump (61), the three-way pipe (62) is provided with two groups of output ends, and the two groups of output ends of the three-way pipe (62) are respectively provided with valves, the input end of the rotary joint (63) is connected with one of the output ends of the three-way pipe (62), the output end of the rotary joint (63) is connected with the input end of the rotary pipe (64), the rotary pipe (64) is provided with a plurality of exhaust pipes, the plurality of electromagnets (65) are respectively installed on the outer wall of the rotary pipe (64), the inner ring of one of the third gears (66) is installed on the upper part of the rotary pipe (64), the inner ring of the other third gear (66) is installed on the output end of the fifth motor (67) in line, and the two groups of third gears (66) are engaged with each other, the input end of the exhaust pipe (68) is connected with the other output end of the three-way pipe (62), and the exhaust pipe (68) is provided with a plurality of output ends, the rotary pipe (64) and the plurality of electromagnets (65) are located in the screening barrel (52), and the exhaust pipe (68) is installed on the inner wall of the discharge box (51).

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