Lime raw material ball mill

Abstract

The utility model discloses a lime raw material ball mill which comprises a roller, a supporting assembly used for supporting the roller and a power assembly, a gear ring is fixedly arranged on the peripheral face of the roller in a sleeved mode, and the gear ring is in transmission connection with the output end of the power assembly. The conveying mechanism is arranged at the feeding end of the roller, and the conveying mechanism comprises a spiral conveying assembly and a smashing assembly used for conducting preliminary smashing on lime raw materials. Wherein a spiral pusher of the spiral conveying assembly and a crushing roller of the crushing assembly are connected to an output shaft of the same rotating motor through a transmission piece, and power sharing is achieved. According to the lime raw material ball mill, the crushing assembly is arranged at the feeding end, lime raw materials are preliminarily crushed, the particle size of the raw materials entering the roller is reduced, and the crushing efficiency is improved; and the grinding medium in the roller can grind the raw materials more effectively, so that the grinding efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of lime production equipment, specifically a lime raw material ball mill. Background Technology

[0002] In the lime production industry, the lime raw material ball mill is a key piece of equipment, playing a decisive role in the efficiency and quality of lime production. Traditional lime raw material ball mills have revealed numerous problems in actual operation. First, in the feeding stage, most ball mills are only equipped with simple conveying devices, failing to pre-treat the lime raw materials. Lime raw materials are usually of varying sizes, and directly feeding them into the ball mill drum for grinding not only leads to excessive wear of the grinding media inside the ball mill but also reduces grinding efficiency and increases energy consumption. Second, the conveying mechanism and the crushing components operate independently, each with its own power source. This not only increases equipment costs but also makes the overall structure more complex, occupies more space, and increases the difficulty and cost of maintenance. Summary of the Invention

[0003] To address the shortcomings mentioned in the background art, the present invention aims to provide a lime raw material ball mill. By setting a crushing component at the feed end, the lime raw material is initially crushed, reducing the particle size of the raw material when it enters the drum. This allows the grinding media inside the drum to grind the raw material more effectively, thereby improving the grinding efficiency.

[0004] The objective of this utility model can be achieved through the following technical solutions:

[0005] A limestone raw material ball mill, comprising:

[0006] A roller, a support assembly for supporting the roller, and a power assembly, wherein a toothed ring is fixedly sleeved on the outer circumferential surface of the roller, and the toothed ring is connected to the output end of the power assembly for transmission.

[0007] A conveying mechanism is provided at the feed end of the drum, and the conveying mechanism includes a screw conveying assembly and a crushing assembly for preliminary crushing of lime raw materials;

[0008] The spiral pusher of the spiral conveying assembly and the crushing roller of the crushing assembly are connected to the output shaft of the same rotating motor through a transmission component, so as to achieve power sharing.

[0009] More preferably, the support assembly includes a bottom base and a connecting flange sleeved on the feed end of the roller, the connecting flange being fixedly installed on the bottom base by bolts; two symmetrically arranged support rollers are rotatably installed on the bottom base near the discharge port of the roller, the axis of the support rollers is parallel to the axis of the roller, and the outer peripheral surface of the support rollers is in rolling contact with the outer surface of the roller.

[0010] More preferably, the power assembly includes a drive motor fixedly mounted on the bottom base, and a drive gear is mounted on the output shaft of the drive motor. The tooth profile of the drive gear meshes with the tooth profile of the gear ring to form a gear pair transmission structure.

[0011] More preferably, the screw conveyor assembly includes a feeding cylinder and a rotary motor. The outlet end of the feeding cylinder is sealed to the feed inlet of the drum via a flange. The screw pusher is rotatably disposed inside the feeding cylinder via a bearing, and its rotating shaft passes through the end cover of the feeding cylinder and is coaxially connected to the output shaft of the rotary motor.

[0012] More preferably, the crushing assembly includes a feed hopper, inside which are two parallel crushing rollers. The ends of the shafts of the two crushing rollers rotate synchronously in opposite directions through a gear set. Triangular crushing teeth are evenly distributed on the outer circumference of the crushing rollers, and the crushing teeth on the two crushing rollers are arranged in an interlocking manner. The shaft of one of the crushing rollers extends to the outside of the feed hopper and is connected to the output shaft of a rotary motor through a transmission component.

[0013] More preferably, the transmission component includes a driving pulley fixed to the output shaft of a rotary motor, a driven pulley fixed to the shaft of a crushing roller, and a synchronous toothed belt sleeved on the driving pulley and the driven pulley.

[0014] The beneficial effects of this utility model are:

[0015] 1. This utility model improves grinding efficiency by setting a crushing component at the feeding end to pre-crush the lime raw material, reducing the particle size of the raw material when it enters the drum, so that the grinding media in the drum can grind the raw material more effectively.

[0016] 2. In this invention, the screw conveyor assembly and the crushing assembly share the same rotary motor as a power source, reducing the number of power devices and lowering equipment costs. Simultaneously, it reduces energy consumption of the power source and improves energy utilization efficiency.

[0017] 3. This utility model pre-treats the lime raw material, reducing excessive wear of the grinding media inside the drum by large particles, extending the service life of the grinding media, and thus extending the service life of the entire equipment. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the power component structure in this utility model;

[0021] Figure 3 This is a cross-sectional view of the feeding cylinder structure in this utility model;

[0022] Figure 4 This is a cross-sectional view of the feed hopper structure in this utility model.

[0023] In the picture:

[0024] 1. Drum; 2. Support assembly; 3. Power assembly; 4. Gear ring; 5. Bottom base; 6. Connecting flange; 7. Support roller; 8. Drive motor; 9. Drive gear; 200. Conveying mechanism; 201. Screw pusher; 202. Crushing roller; 203. Rotary motor; 204. Transmission component; 205. Feed cylinder; 206. Bearing; 207. Feed hopper; 208. Gear set; 209. Triangular crushing tooth; 210. Drive pulley; 211. Driven pulley; 212. Synchronous toothed belt. Detailed Implementation

[0025] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] like Figure 1-4 As shown, a lime raw material ball mill includes: a drum 1, a support assembly 2, a power assembly 3, and a conveying mechanism 200.

[0028] Drum 1: This is the core component of the ball mill, used for grinding lime raw materials. Driven by the power unit 3, drum 1 rotates around its own axis, causing the grinding media inside the drum to fully mix and collide with the lime raw materials, thereby achieving the grinding of the raw materials.

[0029] Support assembly 2 includes a bottom base 5 and a connecting flange 6 fitted onto the feed end of the roller 1. The connecting flange 6 is bolted to the bottom base 5, providing stable support for the feed end of the roller 1. Two symmetrically arranged support rollers 7 are rotatably mounted on the bottom base 5 near the discharge port of the roller 1. The axis of the support rollers 7 is parallel to the axis of the roller 1, and the outer circumferential surface of the support rollers 7 rolls in contact with the outer surface of the roller 1, providing support for the discharge end of the roller 1 and ensuring the stability of the roller 1 during rotation.

[0030] Power assembly 3 includes a drive motor 8 fixedly mounted on the bottom base 5. A drive gear 9 is mounted on the output shaft of the drive motor 8. The tooth profile of the drive gear 9 meshes with the tooth profile of the gear ring 4 fixedly sleeved on the outer circumference of the drum 1, forming a gear pair transmission structure. The drive motor 8 drives the gear ring 4 to rotate through the drive gear 9, thereby driving the drum 1 to rotate and providing power for the grinding operation of the ball mill.

[0031] Conveying mechanism 200: Located at the feed end of drum 1, it includes a screw conveyor assembly and a crushing assembly. The screw conveyor assembly is used to convey lime raw materials into drum 1, and the crushing assembly is used to initially crush the lime raw materials, reduce the particle size of the raw materials before entering drum 1, and improve the subsequent grinding efficiency.

[0032] Power sharing design: The screw pusher 201 of the screw conveyor assembly and the crushing roller 202 of the crushing assembly are connected to the output shaft of the same rotary motor 203 via a transmission component 204, achieving power sharing. This design simplifies the equipment structure and reduces equipment costs and energy consumption.

[0033] The screw conveyor assembly includes a feeding cylinder 205 and a rotary motor 203. The outlet end of the feeding cylinder 205 is sealed to the inlet of the drum 1 via a flange. The screw pusher 201 is rotatably mounted inside the feeding cylinder 205 via a bearing 206. Its shaft passes through the end cover of the feeding cylinder 205 and is coaxially connected to the output shaft of the rotary motor 203. The rotary motor 203 drives the screw pusher 201 to rotate, pushing the lime raw material along the feeding cylinder 205 into the drum 1.

[0034] Crushing assembly: Includes a feed hopper 207, inside which are two parallel crushing rollers 202. The ends of the rotating shafts of the two crushing rollers 202 rotate synchronously in opposite directions via a gear set 208. Triangular crushing teeth 209 are evenly distributed on the outer circumference of the crushing rollers 202, and the crushing teeth on the two crushing rollers 202 are arranged in an interlocking pattern. The rotating shaft of one crushing roller 202 extends outside the feed hopper 207 and is connected to the output shaft of a rotary motor 203 via a transmission component 204. The rotary motor 203 drives one crushing roller 202 to rotate via the transmission component 204, and this crushing roller 202 then drives the other crushing roller 202 to rotate synchronously in opposite directions via the gear set 208, thus crushing the lime raw material entering the feed hopper 207.

[0035] Workflow

[0036] Feeding and pretreatment stage:

[0037] When the equipment is started, the rotary motor 203 begins to work. The output shaft of the rotary motor 203 directly drives the screw pusher 201 in the screw conveyor assembly to rotate, and on the other hand, it drives the shaft of a crushing roller 202 in the crushing assembly to rotate through the transmission components 204 (driving pulley 210, driven pulley 211 and synchronous toothed belt 212).

[0038] The lime raw material enters from the feed hopper 207. Since the two crushing rollers 202 rotate synchronously in opposite directions through the gear set 208, and the crushing teeth on the outer circumference of the crushing rollers 202 are arranged in an interlocking manner, the raw material is subjected to compression and shearing between the two crushing rollers 202 and is initially crushed into smaller particles.

[0039] The pre-crushed raw material falls into the feeding cylinder 205 and is conveyed to the feed inlet of the drum 1 along the feeding cylinder 205 under the action of the rotating screw pusher 201.

[0040] Grinding stage:

[0041] When the drive motor 8 starts, the drive gear 9 on its output shaft meshes with the gear ring 4 fixed on the outer circumference of the drum 1. The drive gear 9 rotates, causing the gear ring 4 to rotate, which in turn causes the drum 1 to rotate around its own axis.

[0042] As the drum 1 rotates, the lime raw material and the grinding media (such as steel balls) inside the drum are lifted to a certain height and then fall down, colliding and rubbing against each other to further grind the lime raw material.

[0043] Discharge stage:

[0044] The fully ground lime product is discharged from the discharge port of drum 1, completing the entire ball mill process.

[0045] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A ball mill for lime raw materials, characterized in that, include: The roller (1), the support assembly (2) for supporting the roller (1) and the power assembly (3) are provided. A toothed ring (4) is fixedly sleeved on the outer circumferential surface of the roller (1). The toothed ring (4) is connected to the output end of the power assembly (3) in a transmission connection. The conveying mechanism (200) is located at the feed end of the drum (1). The conveying mechanism (200) includes a screw conveying assembly and a crushing assembly for preliminary crushing of lime raw materials. The spiral pusher (201) of the spiral conveying assembly and the crushing roller (202) of the crushing assembly are connected to the output shaft of the same rotary motor (203) through the transmission component (204) to achieve power sharing.

2. The lime raw material ball mill according to claim 1, characterized in that, The support assembly (2) includes a bottom base (5) and a connecting flange (6) sleeved on the feed end of the roller (1). The connecting flange (6) is fixedly installed on the bottom base (5) by bolts. Two symmetrically arranged support rollers (7) are rotatably installed on the side of the bottom base (5) near the discharge port of the roller (1). The axis of the support roller (7) is parallel to the axis of the roller (1), and the outer circumferential surface of the support roller (7) is in rolling contact with the outer surface of the roller (1).

3. The lime raw material ball mill according to claim 1, characterized in that, The power assembly (3) includes a drive motor (8) fixedly mounted on the bottom base (5). A drive gear (9) is mounted on the output shaft of the drive motor (8). The tooth profile of the drive gear (9) meshes with the tooth profile of the gear ring (4) to form a gear pair transmission structure.

4. The lime raw material ball mill according to claim 1, characterized in that, The screw conveyor assembly includes a feeding cylinder (205) and a rotary motor (203). The outlet end of the feeding cylinder (205) is sealed to the feed inlet of the drum (1) through a flange. The screw pusher (201) is rotatably disposed inside the feeding cylinder (205) through a bearing (206). Its shaft passes through the end cover of the feeding cylinder (205) and is coaxially connected to the output shaft of the rotary motor (203).

5. The lime raw material ball mill according to claim 4, characterized in that, The crushing assembly includes a feed hopper (207), inside which are two parallel crushing rollers (202). The ends of the shafts of the two crushing rollers (202) rotate synchronously in opposite directions through a gear set (208). Triangular crushing teeth (209) are evenly distributed on the outer circumference of the crushing rollers (202), and the crushing teeth on the two crushing rollers (202) are arranged in an interlocking manner. The shaft of one of the crushing rollers (202) extends to the outside of the feed hopper (207) and is connected to the output shaft of a rotary motor (203) through a transmission component (204).

6. The lime raw material ball mill according to claim 5, characterized in that, The transmission component (204) includes a drive pulley (210) fixed on the output shaft of a rotary motor (203), a driven pulley (211) fixed on the shaft of a crushing roller (202), and a synchronous toothed belt (212) sleeved on the drive pulley (210) and the driven pulley (211).

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