Lime kiln feeding and screening device

Abstract

The utility model discloses a lime kiln feeding and screening device which comprises a base and a connecting mechanism arranged in the base, and the connecting mechanism comprises a feeding assembly, a screening assembly and a cleaning assembly. The feeding assembly comprises a feeding pipe, a feeding screen, a discharging groove and a feeding pipe, the screening assembly comprises a dust cover, a rotating shaft, a rotating motor, a primary screening roller, a secondary screening roller and a final screening roller, and the cleaning assembly comprises a follow-up bearing and a cleaning brush. When the screening machine works, the feeding screen screens to-be-processed products, damage of large particles to the primary screening roller is avoided, the service life is prolonged, the maintenance cost is reduced, the cleaning brush cleans the final screening holes, screening efficiency reduction caused by blockage of the final screening holes is avoided, screening efficiency is improved, the dust cover can isolate dust generated by screening, and the screening efficiency is improved. And the cloth bag filter can adsorb and collect the dust, and hidden dangers caused by the fact that the content of the dust in the dust cover is too large are avoided.

Description

Technical Field

[0001] This utility model relates to the field of lime feeding and processing technology, specifically a lime kiln feeding and screening device. Background Technology

[0002] A lime kiln is a piece of equipment used to produce lime. It is commonly used in industry and construction to produce various types of lime, such as quicklime and hydrated lime. The feeding device of a lime kiln is used to feed raw materials into the kiln. It can include conveyor belts, bucket elevators, overhead chain conveyors, etc. In existing lime kiln feeding devices, the powder to be fed is placed in a hopper, and then transported by a conveyor system. However, the material stored above the hopper may clump together due to prolonged storage, affecting subsequent production.

[0003] For example, application number CN221139898U discloses a granular material screening and feeding device, including a base. A rectangular fixing block and an adjusting component are provided on the top of the base. The adjusting component includes a first U-shaped seat fixedly connected to the top of the base, and a first rotating plate rotatably connected inside the first U-shaped seat. The rectangular fixing block and the adjusting component are jointly connected to a conveying component. The conveying component includes a feeding box, and a conveyor belt is movably connected inside the feeding box. A U-shaped guide plate is inclinedly provided at the bottom of the feeding box, near the right side. This granular material screening and feeding device allows the height of the output end of the conveying component to be adjusted via the adjusting component, eliminating the need for manual adjustment and facilitating use. The conveyor belt in the conveying component can transport the granular material to be screened upwards to the U-shaped guide plate, and then output it into the granular material screening equipment via the U-shaped guide plate.

[0004] However, this granular material screening and feeding device can only perform feeding operations and cannot perform multiple screening operations, resulting in poor granular material screening effect. The screening process cannot adsorb and clean dust, which greatly reduces the screening efficiency and does not meet people's needs. Therefore, a lime kiln feeding and screening device is needed. Utility Model Content

[0005] To address the shortcomings of existing technologies, such as the inability to perform multiple screening operations, poor screening results, and the inability to adsorb and clean dust generated during the screening process, this utility model provides a lime kiln feeding screening device.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] This utility model discloses a lime kiln feeding and screening device, including a base and a connecting mechanism disposed inside the base. The connecting mechanism includes a feeding component, a screening component, and a cleaning component.

[0008] The feeding assembly includes a feeding bracket, a feeding box, a feeding pipe, a feeding screen, a discharge chute, a discharge hopper, and a feeding pipe. Two sets of feeding brackets are welded to the upper surface of the base. A feeding box is fixedly installed on the top of the two sets of feeding brackets. A feeding pipe is installed on the top of the feeding box, and a feeding screen is provided inside the feeding box. A discharge chute is opened on the side wall of the feeding box, and a discharge hopper is sealed to the bottom of the feeding box. A feeding pipe is sealed to the end of the discharge hopper away from the feeding box.

[0009] A screening assembly is installed on the top of the base.

[0010] As a preferred technical solution of this utility model, the screening assembly includes a dust cover, an active frame, a driven frame, a bearing groove, a rotating bearing, a rotating shaft, a rotating frame, a rotating motor, a motor frame, connecting rods, a primary screening drum, a secondary screening drum, and a final screening drum. The dust cover is fixedly installed on the top of the base. The active frame and the driven frame inside the dust cover are both welded to the base. The driven frame is close to the feeding support. A bearing groove is opened at the center of both the active frame and the driven frame. A rotating bearing is fixed inside the bearing groove. A rotating shaft is rotatably connected between the rotating bearings. A rotating frame is fixed on the rotating shaft, and the end of the rotating shaft away from the driven frame is welded to the rotating motor. The rotating motor is fixedly installed inside the motor frame. The motor frame is welded to the outer wall of the active frame. Five sets of connecting rods are evenly fixed on the rotating frame. The primary screening drum, the secondary screening drum, and the final screening drum are welded sequentially from the inside to the outside on the connecting rods.

[0011] As a preferred technical solution of this utility model, the cleaning assembly includes a cleaning frame, a follower bearing, a follower rod, and a cleaning brush. The cleaning frame is welded onto both the active frame and the driven frame. The follower bearing is fixedly installed on the cleaning frame. The follower rod is rotatably connected between the follower bearing and the follower bearing. The cleaning brush is fixed on the follower rod.

[0012] As a preferred embodiment of this utility model, a cloth bag filter is fixedly installed on the outer wall of the dust cover.

[0013] As a preferred technical solution of this utility model, the primary screening roller is provided with a primary screening hole, the secondary screening roller is provided with a secondary screening hole, and the final screening roller is provided with a final screening hole. Guide threads are fixedly installed on the inner sidewalls of the primary screening roller, the secondary screening roller and the final screening roller.

[0014] As a preferred embodiment of this utility model, the primary screening roller, the secondary screening roller, and the final screening roller are all the same length, and a retaining ring is welded to the end face of the primary screening roller, the secondary screening roller, and the final screening roller near the driven frame.

[0015] As a preferred embodiment of this utility model, the guide plate fixed between the active frame and the driven frame is located directly below the final screening drum. The active frame is provided with a primary screening discharge plate, a secondary screening discharge plate and a final screening discharge plate from top to bottom. The end of the primary screening discharge plate near the primary screening drum is located directly below the primary screening drum. The end of the secondary screening discharge plate near the secondary screening drum is located directly below the secondary screening drum. The end of the final screening discharge plate near the final screening drum is welded to the guide plate.

[0016] As a preferred embodiment of this utility model, the top of the feeding screen is located directly below the feeding pipe, and the bottom end of the feeding screen is welded to the bottom of the discharge trough. The end of the feeding pipe away from the discharge hopper is set on the baffle ring.

[0017] This utility model has the following beneficial effects:

[0018] By configuring a feeding pipe, feeding screen, discharge chute, discharge hopper, and conveying pipe, during operation, the lime awaiting processing is first fed into the feeding box through the feeding pipe. The feeding screen inside the feeding box performs the first screening of the lime, removing large particles. These large particles roll down the inclined feeding screen, while smaller and powdery particles fall downwards. The removed large particles are discharged through the discharge chute, while the smaller and powdery particles are conveyed through the conveying pipe to the primary screening drum for further screening. Screening large particles by the feeding screen prevents damage to the primary screening drum, extends its service life, and reduces maintenance costs.

[0019] By incorporating a dust cover, cleaning frame, follower bearing, follower rod, cleaning brush, and bag filter, the cleaning brush on the outer wall of the final screening drum rotates with the drum, cleaning the screening holes and preventing clogging that could reduce screening efficiency. The cleaning brush rotates within the follower bearing via the follower rod, eliminating the need for a separate motor and reducing operating costs. The dust cover isolates dust generated during the screening process of the primary, secondary, and final screening drums, preventing dust from escaping and affecting the working environment, ensuring greater safety. The bag filter adsorbs and collects dust generated during the screening process of the primary, secondary, and final screening drums, preventing excessive dust content inside the dust cover and potential hazards. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a lime kiln feeding and screening device according to the present invention;

[0021] Figure 2 This is a half-sectional structural diagram of a lime kiln feeding and screening device according to the present invention;

[0022] Figure 3This is a half-sectional structural diagram of the feeding component of a lime kiln feeding and screening device according to this utility model.

[0023] Figure 4 This is a half-sectional structural diagram of the screening component of a lime kiln feeding screening device according to this utility model.

[0024] Figure 5 This is an exploded structural diagram of the screening component of a lime kiln feeding screening device according to this utility model;

[0025] Figure 6 This is a schematic diagram of the cleaning component of a lime kiln feeding and screening device according to this utility model.

[0026] In the diagram: 1. Base; 2. Feeding bracket; 3. Feeding box; 4. Feeding pipe; 5. Feeding screen; 6. Discharge chute; 7. Feeding hopper; 8. Feeding pipe; 9. Dust cover; 10. Active frame; 11. Driven frame; 12. Bearing groove; 13. Rotating bearing; 14. Rotating shaft; 15. Rotating frame; 16. Rotating motor; 17. Motor frame; 18. Connecting rod; 19. Primary screening drum; 20. Secondary screening drum; 21. Final screening drum; 22. Cleaning frame; 23. Follower bearing; 24. Follower rod; 25. Cleaning brush; 26. Bag filter; 27. Primary screening hole; 28. Secondary screening hole; 29. ​​Final screening hole; 30. Guide thread; 31. Material retaining ring; 32. Guide plate; 33. Primary screening discharge plate; 34. Secondary screening discharge plate; 35. Final screening discharge plate. Detailed Implementation

[0027] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0028] Example 1

[0029] like Figure 1-6 As shown, the present invention proposes a lime kiln feeding and screening device, which includes a base 1 and a connecting mechanism disposed inside the base 1. The connecting mechanism includes a feeding component, a screening component and a cleaning component.

[0030] The feeding assembly includes a feeding bracket 2, a feeding box 3, a feeding pipe 4, a feeding screen 5, a discharge chute 6, a discharge hopper 7, and a feeding pipe 8. Two sets of feeding brackets 2 are welded to the upper wall of the base 1. The feeding box 3 is fixedly installed on the top of the two sets of feeding brackets 2. The feeding pipe 4 is installed on the top of the feeding box 3, and the feeding screen 5 is installed inside the feeding box 3. The discharge chute 6 is opened on the side wall of the feeding box 3, and the discharge hopper 7 is sealed to the bottom of the feeding box 3. The end of the discharge hopper 7 away from the feeding box 3 is sealed to... When the feeding pipe 8 is working, the lime awaiting processing is first fed into the feeding box 3 through the feeding pipe 4. The feeding screen 5 inside the feeding box 3 performs the first screening of the lime awaiting processing, removing large particles. The large particles roll down through the inclined feeding screen 5, while small pieces and powdery particles fall down. The screened large particles are discharged through the discharge chute 6, while the small pieces and powdery particles are conveyed through the feeding pipe 8 to the primary screening drum 19 for further screening. The screening of large particles by the feeding screen 5 can prevent damage to the primary screening drum 19, extend the service life of the primary screening drum 19, and reduce maintenance costs.

[0031] A screening assembly is installed on the top of the base (1).

[0032] Furthermore, the screening assembly includes a dust cover 9, an active frame 10, a driven frame 11, a bearing groove 12, a rotating bearing 13, a rotating shaft 14, a rotating frame 15, a rotating motor 16, a motor frame 17, a connecting rod 18, a primary screening drum 19, a secondary screening drum 20, and a final screening drum 21. A dust cover 9 is fixedly installed on the top of the base 1. The active frame 10 and the driven frame 11, both located inside the dust cover 9, are welded to the base 1. The driven frame 11 is close to the feeding support 2. Bearing grooves 12 are provided at the center of both the active frame 10 and the driven frame 11. A rotating bearing is fixed inside the bearing groove 12. A rotating shaft 14 is rotatably connected to a moving bearing 13 and a rotating bearing 13. A rotating frame 15 is fixed on the rotating shaft 14, and the end of the rotating shaft 14 away from the driven frame 11 is welded to a rotating motor 16. The rotating motor 16 is fixedly installed inside a motor frame 17, which is welded to the outer wall of the driving frame 10. Five sets of connecting rods 18 are evenly fixed on the rotating frame 15. From the inside to the outside, a primary screening drum 19, a secondary screening drum 20, and a final screening drum 21 are welded onto the connecting rods 18. Small pieces and powdery products to be processed fall into the interior of the primary screening drum 19. The rotating motor 16 inside the motor frame 17 starts working, driving the rotating shaft 14 to rotate on the rotating bearing 13, which in turn causes the rotating frame 15 wrapped around the rotating shaft 14 to rotate. The rotating frame 15 drives the primary screening drum 19, the secondary screening drum 20, and the final screening drum 21 to rotate through the connecting rods 18 to perform the screening operation.

[0033] Furthermore, a bag filter 26 is fixedly installed on the outer wall of the dust cover 9. During operation, the bag filter 26 can adsorb and collect the dust generated during the screening process of the primary screening drum 19, the secondary screening drum 20 and the final screening drum 21, so as to avoid the hidden danger caused by excessive dust content inside the dust cover 9.

[0034] Furthermore, the primary screening roller 19 has primary screening holes 27, the secondary screening roller 20 has secondary screening holes 28, and the final screening roller 21 has final screening holes 29. Guide threads 30 are fixedly installed on the inner walls of the primary screening roller 19, secondary screening roller 20, and final screening roller 21. During operation, small pieces and powdery products to be processed roll inside the primary screening roller 19. Powder and fine particles fall into the secondary screening roller 20 through the primary screening holes 27 on the primary screening roller 19, while small pieces are guided to the primary screening discharge plate 33 by the guide threads 30 on the inner wall of the primary screening roller 19. Powder and fine particles roll inside the secondary screening roller 20, while powdery products to be processed fall into the final screening roller 21 through the secondary screening holes 28 on the secondary screening roller 20. Fine particles are guided to the secondary screening discharge plate 34 by the guide threads 30 on the inner wall of the secondary screening roller 20. The powdered material to be processed rolls inside the final screening drum 21. If the operator wants to further screen the material, an external discharge plate can be placed at the outlet of the final screening drum 21 for further screening. The lime powder falls into the guide plate 32 through the final screening hole 29 on the final screening drum 21, while the remaining micro particles are guided to the external discharge plate through the guide thread 30 set inside the final screening drum 21.

[0035] Furthermore, the primary screening roller 19, the secondary screening roller 20, and the final screening roller 21 are all the same length, and a baffle ring 31 is welded to the end face of the primary screening roller 19, the secondary screening roller 20, and the final screening roller 21 near the driven frame 11. During operation, by setting the baffle ring 31, the baffle ring 31 can block the products to be processed inside the primary screening roller 19, the secondary screening roller 20, and the final screening roller 21, preventing the products to be processed from falling out through the driven frame 11 end, thus ensuring safety.

[0036] Furthermore, the guide plate 32 fixed between the active frame 10 and the driven frame 11 is located directly below the final screening drum 21. The active frame 10 is provided with a primary screening discharge plate 33, a secondary screening discharge plate 34, and a final screening discharge plate 35 arranged sequentially from top to bottom. The end of the primary screening discharge plate 33 closest to the primary screening drum 19 is located directly below the primary screening drum 19. The end of the secondary screening discharge plate 34 closest to the secondary screening drum 20 is located directly below the secondary screening drum 20. The final screening discharge plate 35 is located close to the final screening drum 21. One end is welded to the guide plate 32. During operation, small particles are guided by the guide thread 30 on the inner wall of the primary screening drum 19 to the primary screening discharge plate 33, and finally discharged through the primary screening discharge plate 33. Tiny particles are guided by the guide thread 30 on the inner wall of the secondary screening drum 20 to the secondary screening discharge plate 34, and finally discharged through the secondary screening discharge plate 34. Lime powder falls onto the guide plate 32 through the final screening hole 29 on the final screening drum 21, and finally is discharged through the final screening discharge plate 35. If further screening is not desired, the powdered product to be processed falls onto the final screening discharge plate 35 for discharge.

[0037] Furthermore, the top of the feeding screen 5 is located directly below the feeding pipe 4, and the bottom end of the feeding screen 5 is welded to the bottom of the discharge trough 6. The end of the feeding pipe 8 away from the discharge hopper 7 is set on the baffle ring 31. During operation, large particles roll down through the inclined feeding screen 5, while small pieces and powdery particles fall down into the interior of the feeding pipe 8 and are guided to the primary screening drum 19 through the feeding pipe 8. The baffle ring 31 then blocks the product to be processed.

[0038] Example 2

[0039] like Figure 1-6 As shown, the lime kiln feeding and screening device proposed in this utility model, compared with embodiment 1, is another implementation of this utility model. The cleaning component includes a cleaning frame 22, a follower bearing 23, a follower rod 24, and a cleaning brush 25. The cleaning frame 22 is welded to both the active frame 10 and the driven frame 11. The follower bearing 23 is fixedly installed on the cleaning frame 22. The follower rod 24 is rotatably connected between the follower bearings 23. The cleaning brush 25 is fixed on the follower rod 24. The cleaning brush 25 set on the outer wall of the final screen drum 21 rotates with the final screen drum 21 and cleans the final screen holes 29 opened on the final screen drum 21 to avoid the final screen holes 29 from being blocked and thus reduce the screening efficiency, thereby improving the screening efficiency. The cleaning brush 25 rotates inside the follower bearing 23 through the follower rod 24, eliminating the need for a separate motor and reducing the operating cost.

[0040] During operation, the lime awaiting processing is first fed into the feeding box 3 through the feeding pipe 4. The feeding screen 5 inside the feeding box 3 performs the first screening of the lime awaiting processing, removing large particles. The large particles roll down through the inclined feeding screen 5, while small pieces and powdery particles fall downwards. The screened large particles are discharged through the discharge chute 6, while the small pieces and powdery particles are conveyed through the feeding pipe 8 to the primary screening drum 19 for further screening. The screening of large particles by the feeding screen 5 avoids damage to the primary screening drum 19, extends its service life, and reduces maintenance costs.

[0041] Next, small pieces and powdery products fall into the interior of the primary screening drum 19. The rotating motor 16 inside the motor frame 17 starts working, driving the rotating shaft 14 to rotate on the rotating bearing 13, which in turn causes the rotating frame 15 wrapped around the rotating shaft 14 to rotate as well. The rotating frame 15 drives the primary screening drum 19, the secondary screening drum 20, and the final screening drum 21 to rotate and perform screening operations through the connecting rod 18. The small pieces and powdery products roll inside the primary screening drum 19, and the powder and tiny particles fall into the interior of the secondary screening drum 20 through the primary screening holes 27 on the primary screening drum 19. The small particles are guided to the primary screening discharge plate 33 by the guide threads 30 provided on the inner wall of the primary screening drum 19, and finally discharged through the primary screening discharge plate 33. Powder and fine particles roll inside the secondary screening drum 20. The powdery material to be processed falls into the final screening drum 21 through the secondary screening holes 28 on the secondary screening drum 20. The fine particles are guided to the secondary screening discharge plate 34 by the guide threads 30 on the inner wall of the secondary screening drum 20, and finally discharged through the secondary screening discharge plate 34. The powdery material to be processed rolls inside the final screening drum 21. If the operator wants to further screen, an external discharge plate can be placed at the outlet of the final screening drum 21 for further screening. Lime powder falls into the guide plate 32 through the final screening holes 29 on the final screening drum 21, while the remaining fine particles are guided to the external discharge plate through the guide threads 30 on the inner wall of the final screening drum 21. The lime powder is discharged through the final screening discharge plate 35. If further screening is not desired, the powdery material to be processed falls into the final screening discharge plate 35 for discharge.

[0042] Finally, the cleaning brush 25 installed on the outer wall of the final screening drum 21 rotates with the final screening drum 21 to clean the final screening holes 29 opened on the final screening drum 21, preventing the final screening holes 29 from becoming clogged and reducing screening efficiency, thus improving screening efficiency. The cleaning brush 25 rotates with the follower rod 24 inside the follower bearing 23, eliminating the need for a separate motor and reducing operating costs. The dust cover 9 can isolate the dust generated during the screening process of the primary screening drum 19, secondary screening drum 20, and final screening drum 21, preventing dust from spreading and affecting the working environment, thus ensuring greater safety. The bag filter 26 can adsorb and collect the dust generated during the screening process of the primary screening drum 19, secondary screening drum 20, and final screening drum 21, preventing excessive dust content inside the dust cover 9 from causing potential hazards.

[0043] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A lime kiln feeding and screening device, comprising a base (1) and a connecting mechanism arranged inside the base (1), characterized in that: The connecting mechanism includes a feeding assembly, a screening assembly, and a cleaning assembly; The feeding assembly includes a feeding bracket (2), a feeding box (3), a feeding pipe (4), a feeding screen (5), a discharge chute (6), a discharge hopper (7), and a feeding pipe (8). Two sets of feeding brackets (2) are welded to the upper surface of the base (1). The feeding box (3) is fixedly installed on the top of the two sets of feeding brackets (2). The feeding pipe (4) is installed on the top of the feeding box (3). The feeding screen (5) is provided inside the feeding box (3). The discharge chute (6) is opened on the side wall of the feeding box (3). The discharge hopper (7) is sealed and connected to the bottom of the feeding box (3). The end of the discharge hopper (7) away from the feeding box (3) is sealed and connected to the feeding pipe (8). A screening assembly is installed on the top of the base (1).

2. A lime kiln feed screening device according to claim 1, characterized in that: The screening assembly includes a dust cover (9), an active frame (10), a driven frame (11), a bearing groove (12), a rotating bearing (13), a rotating shaft (14), a rotating frame (15), a rotating motor (16), a motor frame (17), a connecting rod (18), a primary screening drum (19), a secondary screening drum (20), and a final screening drum (21). A dust cover (9) is fixedly installed on the top of the base (1). The active frame (10) and the driven frame (11) inside the dust cover (9) are both welded to the base (1). The driven frame (11) is close to the feeding bracket (2). Bearing grooves (12) are provided at the center of both the active frame (10) and the driven frame (11). A rotating bearing (13) is fixed inside the bearing groove (12). A rotating shaft (14) is rotatably connected between the rotating bearing (13) and the rotating bearing (13). A rotating frame (15) is fixed on the rotating shaft (14), and the end of the rotating shaft (14) away from the driven frame (11) is welded to the rotating motor (16). The rotating motor (16) is fixedly installed inside the motor frame (17). The motor frame (17) is welded to the outer wall of the driving frame (10). Five sets of connecting rods (18) are evenly fixed on the rotating frame (15). A primary screening roller (19), a secondary screening roller (20), and a final screening roller (21) are welded sequentially from the inside to the outside on the connecting rods (18).

3. A lime kiln feed screening device according to claim 2, characterized in that: The cleaning assembly includes a cleaning frame (22), a follower bearing (23), a follower rod (24), and a cleaning brush (25). The cleaning frame (22) is welded onto both the active frame (10) and the driven frame (11). The follower bearing (23) is fixedly installed on the cleaning frame (22). The follower rod (24) is rotatably connected between the follower bearing (23) and the follower bearing (23). The cleaning brush (25) is fixed on the follower rod (24).

4. A lime kiln feed screening device according to claim 2, characterized in that: A bag filter (26) is fixedly installed on the outer wall of the dust cover (9).

5. A lime kiln feed screening device according to claim 2, characterized in that: The primary screening roller (19) has a primary screening hole (27), the secondary screening roller (20) has a secondary screening hole (28), and the final screening roller (21) has a final screening hole (29). The inner sidewalls of the primary screening roller (19), secondary screening roller (20) and final screening roller (21) are all fixedly installed with guide threads (30).

6. A lime kiln feed screening device according to claim 2, characterized in that: The primary screening drum (19), secondary screening drum (20) and final screening drum (21) are all the same length, and a baffle ring (31) is welded to the end face of the primary screening drum (19), secondary screening drum (20) and final screening drum (21) near the driven frame (11).

7. A lime kiln feed screening device according to claim 2, characterized in that: The guide plate (32) fixed between the active frame (10) and the driven frame (11) is located directly below the final screening drum (21). The active frame (10) is provided with a primary screening discharge plate (33), a secondary screening discharge plate (34) and a final screening discharge plate (35) in sequence from top to bottom. The end of the primary screening discharge plate (33) near the primary screening drum (19) is located directly below the primary screening drum (19). The end of the secondary screening discharge plate (34) near the secondary screening drum (20) is located directly below the secondary screening drum (20). The end of the final screening discharge plate (35) near the final screening drum (21) is welded to the guide plate (32).

8. A lime kiln feed screening device according to claim 1, characterized in that: The top of the feeding screen (5) is located directly below the feeding pipe (4), and the bottom end of the feeding screen (5) is welded to the bottom of the discharge trough (6). The end of the feeding pipe (8) away from the discharge hopper (7) is set on the baffle ring (31).

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