A feeding device for lime production

Abstract

The utility model relates to material conveying technical field, especially a feeding equipment for lime production. The utility model provides a feeding equipment for lime production, including base, frame body, mixing hopper, stirring drum, motor, spiral blade, conveyer belt and flat mechanism etc.

Description

Technical Field

[0001] This utility model relates to the field of material conveying technology, and in particular to a feeding device for lime production. Background Technology

[0002] Lime is an air-hardening inorganic cementing material made from natural mineral raw materials such as limestone, dolomite, or chalk through high-temperature calcination. It is primarily composed of calcium oxide (CaO) and is one of the earliest cementing materials used by humankind, widely applied in metallurgy, construction, chemical industry, environmental protection, and many other fields. In modern industry, the production process of lime mainly includes several stages such as raw material crushing, calcination, cooling, conveying, and feeding. Among these, feeding is a crucial step connecting various processes; its stability and uniformity directly affect the continuity of subsequent processes and the stability of product quality.

[0003] In current lime production processes, feeding equipment typically includes hoppers, mixing devices, and conveyor belts to transport calcined lime particles to the next process. However, existing feeding equipment often suffers from inefficient hopper structures and a lack of effective material flow control. During material descent, particle size or density segregation easily occurs, with larger particles or denser materials concentrating at the hopper's edges or bottom, while smaller particles remain in the center, resulting in uneven material distribution within the hopper. Furthermore, traditional hoppers are susceptible to vibration and impact during material flow, further exacerbating this unevenness and causing significant local differences in bulk density. This unevenness not only affects the continuity and stability of material transport but can also trigger a "cavity effect" during subsequent transport or mixing. This means that material forms localized voids within the conveying equipment, causing material stagnation and blockages, and in severe cases, even leading to equipment shutdown and maintenance, thus impacting production efficiency.

[0004] Therefore, there is an urgent need for a feeding device that can improve the uniformity of material conveying. Utility Model Content

[0005] In order to overcome the shortcomings of uneven material flow, this utility model provides a feeding device for lime production.

[0006] The technical solution of this utility model is as follows: This utility model provides a feeding device for lime production, including a base, a frame, a mixing hopper, a mixing tank, a motor, spiral blades, a conveyor belt, and a leveling mechanism. The frame is installed on the base, the mixing hopper is installed on the frame, the mixing tank is installed on the frame, the motor is installed on the mixing tank, the output shaft of the motor is inserted into the inside of the mixing tank through a coupling, the spiral blades are connected to the coupling, the conveyor belt is installed on the frame, and the leveling mechanism for leveling lime is installed on the frame.

[0007] Preferably, the leveling mechanism includes a fixed frame, an electric slide rail, a sliding block, a movable frame, a pusher frame, a pusher roller, and a first elastic element. The fixed frame is mounted on the frame body, the electric slide rail is symmetrically arranged on the fixed frame, the sliding block is slidably mounted on the electric slide rail, the movable frame is connected to the sliding block, the pusher frame is slidably mounted on the movable frame, the pusher roller is connected to the pusher frame, and the first elastic element is sleeved on the movable frame. One end of the first elastic element is connected to the movable frame, and the other end is connected to the pusher frame.

[0008] Preferably, it also includes a guide frame, with guide frames symmetrically arranged on the fixed frame, and the push frame slidingly contacting the guide frame.

[0009] Preferably, it also includes a scraper and a second elastic element. Several mounting rods are slidably arranged on one side of the mixing hopper. Each mounting rod is fitted with a second elastic element. One end of the second elastic element is connected to the mixing hopper, and the other end is connected to the mounting rod. A scraper is installed on the mounting rods together, and the scraper is in close contact with the conveyor belt.

[0010] Preferably, it also includes a pusher plate, which is provided on the coupling of the motor output shaft.

[0011] Preferably, the conveyor belt is provided with partitions at uniform intervals.

[0012] The beneficial effects of this utility model are: This invention uses a motor to drive the spiral blades to rotate, causing the lime spiral to slowly move down to the conveyor belt. Under the action of the pusher roller, it is leveled, effectively preventing material segregation and achieving uniform feeding.

[0013] This invention uses a scraper plate, under the elastic force of the second elastic element, to effectively scrape off residual material from the surface of the conveyor belt and allow it to fall back into the mixing hopper, thus avoiding waste and pollution. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the base, frame, mixing hopper, and other parts of this utility model.

[0015] Figure 2 This is a three-dimensional structural diagram of the spiral blades, conveyor belt, and fixing frame of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the mixing hopper, stirring tank, motor, and other parts of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the fixed frame, electric slide rail, sliding block, and other parts of this utility model.

[0018] Figure 5This is a three-dimensional structural diagram of the pusher roller, the first elastic element, the guide frame, and other parts of this utility model.

[0019] Figure 6 This is a three-dimensional structural diagram of the mixing hopper, scraper, and second elastic element of this utility model.

[0020] Figure 7 This is a three-dimensional structural diagram of the motor, spiral blade, and pusher plate of this utility model.

[0021] The labels in the attached diagram are as follows: 1-base, 2-frame, 3-mixing hopper, 4-mixing tank, 5-motor, 6-spiral blade, 7-transmission belt, 8-fixed frame, 9-electric slide rail, 10-sliding block, 11-moving frame, 12-pushing frame, 13-push roller, 14-first elastic element, 15-guide frame, 16-scraper, 17-second elastic element, 18-push plate. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Example 1: A feeding device for lime production, such as... Figures 1-3 As shown, the system includes a base 1, a frame 2, a mixing hopper 3, a mixing drum 4, a motor 5, spiral blades 6, a conveyor belt 7, and a leveling mechanism. The frame 2 is mounted on the base 1. The mixing hopper 3 is located on the left side of the frame 2, and the mixing drum 4 is mounted on the right side. The motor 5 is mounted on the top of the mixing drum 4. The output shaft of the motor 5 passes through the top of the mixing drum 4 via a coupling and is inserted into its interior, enabling continuous mixing and uniform feeding of lime. Spiral blades 6 are connected to the bottom of the coupling, allowing the lime material to move evenly downwards within the mixing drum 4, effectively preventing material blockage and segregation, improving the stability and uniformity of material flow, reducing manual intervention, and increasing production efficiency. The conveyor belt 7 is mounted on the frame 2, with evenly spaced baffles installed on it. These baffles prevent lime from sliding or accumulating during transport, ensuring orderly and stable forward transport of materials and avoiding equipment malfunctions or efficiency reductions caused by material slippage or accumulation. The leveling mechanism is mounted on the frame 2 to dynamically level the lime on the conveyor belt 7, improving the uniformity of material distribution and providing a high-quality raw material foundation for subsequent processes.

[0024] like Figures 4-5As shown, the leveling mechanism includes a fixed frame 8, an electric slide rail 9, a sliding block 10, a moving frame 11, a pushing frame 12, a pusher roller 13, and a first elastic element 14. The fixed frame 8 is provided on the upper part of the frame 2. Two electric slide rails 9 are installed on the fixed frame 8. The sliding block 10 is slidably arranged on the electric slide rail 9. The electric slide rail 9 provides precise lateral driving force, driving the sliding block 10 and subsequent structures to achieve automated and programmed operation, improving leveling efficiency and accuracy. The bottom of the sliding block 10 is connected to the moving frame 11. The bottom of the moving frame 11 is slidably connected to the pushing frame 12. The pusher roller 13 is installed on the pushing frame 12 to achieve uniform leveling of materials and improve the quality of subsequent mixing and conveying. The lower part of the moving frame 11 is fitted with the first elastic element 14. The upper end of the first elastic element 14 is connected to the moving frame 11, and the lower end is connected to the pushing frame 12. The moving frame 11 and the first elastic element 14 cooperate to realize the up and down floating adjustment of the pusher roller 13 to adapt to material layers of different thicknesses and prevent material segregation or equipment damage caused by rigid contact.

[0025] When lime feeding is required, the operator pours the lime raw material to be processed evenly into the mixing tank 4, and then starts the motor 5. The motor 5 drives the spiral blades 6 to rotate inside the mixing tank 4 through the coupling, so that the lime is slowly and evenly discharged from the bottom of the mixing tank 4 under the action of the spiral blades 6 and falls precisely onto the conveyor belt 7 below. The lime is conveyed forward by the conveyor belt 7 until it reaches the area below the fixed frame 8. At this point, the electric slide rail 9 operates, and the sliding block 10 slides on its track, driving the moving frame 11 and the pushing frame 12 connected to it to move laterally in sync, so that the pusher roller 13 connected to it moves accordingly. This allows the lime on the conveyor belt 7 to be horizontally leveled, making its distribution more uniform. At the same time, the first elastic element 14 allows the pusher frame 12 to float freely in the vertical direction. When the thickness of the lime layer changes, the pusher roller 13 can automatically adjust up and down under the action of the elastic element to adapt to different stacking heights. This achieves flexible leveling of the lime layer and avoids material scattering or uneven stacking caused by excessive pressure. The leveled lime continues to be conveyed forward with the conveyor belt 7 and finally falls from the end of the conveyor belt 7 to the mixing hopper 3 below for centralized collection, providing a uniform and stable supply of raw materials for subsequent mixing or processing steps.

[0026] Example 2: Based on Example 1, such as Figures 5-7As shown, it also includes a guide frame 15, a scraper 16, a second elastic element 17, and a pusher plate 18. Two U-shaped guide frames 15 are installed on the fixed frame 8. The pusher 12 slides in contact with the guide frame 15, so that when the pusher 12 slides along the guide frame 15 to the edge, it lifts up and detaches from the material surface, avoiding secondary disturbance or damage to the already leveled lime during the return process, and ensuring the stability of the leveling effect. Four mounting rods are slidably installed on the right side of the mixing hopper 3. Each of the four mounting rods is connected to a second elastic element 17. The lower end of the second elastic element 17 is connected to the mixing hopper 3, and the upper end is connected to the bottom of the mounting rod. The second elastic element 17 provides elastic buffering force, so that the scraper 16 can automatically adjust the pressure according to the surface undulation of the conveyor belt 7 and maintain good fit. Simultaneously, it automatically presses down when encountering the partition on the conveyor belt 7 to avoid hard collisions that could damage the equipment structure. A scraper 16 is installed on each of the four mounting rods, closely adhering to the bottom of the conveyor belt 7 to remove residual lime, prevent material adhesion and accumulation, reduce the frequency of manual cleaning, and extend the equipment's service life. A pusher plate 18 is installed on the coupling of the output shaft of the motor 5, positioned above the spiral blade 6. The pusher plate 18 assists in the even falling of lime material, preventing clumping or blockage, improving the discharge efficiency and material flowability of the mixing tank, and ensuring that the material is more evenly distributed around the spiral blade 6 and gradually falls as the spiral blade 6 rotates, thereby reducing the possibility of material segregation and ensuring the consistency and uniformity of material conveying.

[0027] During lime conveying operations, the conveyor belt 7 transports the evenly mixed lime material to the end, where it falls naturally into the mixing hopper 3 below under gravity, completing the initial collection process. However, due to the adhesive nature of lime, some fine particles may remain on the surface of the conveyor belt 7 and fail to fall completely, continuing to move forward with the conveyor belt 7. When these residual materials move with the conveyor belt 7 to the area where the scraper 16 is located, the scraper 16 is continuously pressed against the surface of the conveyor belt 7 by the elastic force of the second elastic element 17, maintaining a tight fit. The scraper 16 can effectively scrape off the residual lime material on the conveyor belt 7 and allow it to fall smoothly into the mixing hopper 3 below, avoiding material waste and equipment contamination. When the scraper 16 runs to the position where it contacts the partition on the conveyor belt 7 used to prevent material from sliding, the scraper 16 and the mounting rod are connected by the second elastic element 17, which has a certain elastic buffering capacity. The scraper 16 can move downward under the push of the partition, allowing it to slide smoothly along the inclined surface of the partition, avoiding hard collisions or deformation and damage to the partition, thereby ensuring the continuity and stability of equipment operation.

[0028] The above-described embodiments are merely preferred embodiments of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications, improvements, and substitutions without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. A feeding device for lime production, comprising a base (1), a frame (2), a mixing hopper (3), and a mixing drum (4), wherein the frame (2) is mounted on the base (1), the mixing hopper (3) is mounted on the frame (2), and the mixing drum (4) is mounted on the frame (2), characterized in that, It also includes a motor (5), a spiral blade (6), a conveyor belt (7) and a leveling mechanism. The motor (5) is installed on the mixing tank (4). The output shaft of the motor (5) is inserted into the mixing tank (4) through a coupling. The spiral blade (6) is connected to the coupling. The conveyor belt (7) is installed on the frame (2). The leveling mechanism for leveling lime is installed on the frame (2).

2. The feeding equipment for lime production according to claim 1, characterized in that, The leveling mechanism includes a fixed frame (8), an electric slide rail (9), a sliding block (10), a moving frame (11), a pushing frame (12), a pusher roller (13), and a first elastic element (14). The fixed frame (8) is installed on the frame (2). The electric slide rail (9) is symmetrically arranged on the fixed frame (8). The sliding block (10) is slidably installed on the electric slide rail (9). The moving frame (11) is connected to the sliding block (10). The pusher roller (12) is slidably installed on the moving frame (11). The pusher roller (13) is connected to the pusher roller (12). The first elastic element (14) is sleeved on the moving frame (11). One end of the first elastic element (14) is connected to the moving frame (11), and the other end is connected to the pusher roller (12).

3. The feeding equipment for lime production according to claim 2, characterized in that, It also includes a guide frame (15), and the guide frame (15) is symmetrically arranged on the fixed frame (8). The push frame (12) is in sliding contact with the guide frame (15).

4. The feeding equipment for lime production according to claim 3, characterized in that, It also includes a scraper (16) and a second elastic element (17). Several mounting rods are slidably arranged on one side of the mixing hopper (3). The second elastic element (17) is connected to each mounting rod. One end of the second elastic element (17) is connected to the mixing hopper (3), and the other end is connected to the mounting rod. The scraper (16) is installed on the mounting rod. The scraper (16) is in close contact with the conveyor belt (7).

5. The feeding equipment for lime production according to claim 4, characterized in that, It also includes a pusher plate (18), and the pusher plate (18) is provided on the coupling of the output shaft of the motor (5).

6. The feeding device for lime production according to claim 5, characterized in that, The conveyor belt (7) is provided with partitions at uniform intervals.

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