A screw feeder for producing desulfurizing agent using calcium oxide

By using a motor-driven transmission system and scraper design, the clogging problem of the screw feeder for desulfurizing agent in calcium oxide production was solved, achieving stable conveying and efficient flow of calcium oxide raw materials and ensuring continuous production.

CN224428956UActive Publication Date: 2026-06-30XINJIANG NETYUAN HUANYU ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XINJIANG NETYUAN HUANYU ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
Filing Date
2025-07-23
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The screw feeder used in the production of desulfurizing agents from calcium oxide is prone to clogging during use due to the moisture absorption and agglomeration of the calcium oxide raw material and uneven particle size, which affects the conveying efficiency and equipment continuity.

Method used

The electric motor-driven transmission system drives the rotating rod and scraper. Combined with the temporary storage tank and screw design, it ensures that the calcium oxide raw material does not clump during transportation, and the scraper prevents the accumulation of adhering materials, thus achieving stable transportation.

Benefits of technology

This effectively avoids blockage problems caused by agglomeration, ensures the continuous and stable transportation of calcium oxide raw materials, and improves transportation efficiency and equipment continuity.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of calcium oxide production technology, and more particularly to a screw feeder for producing desulfurizing agents using calcium oxide. The screw feeder for producing desulfurizing agents using calcium oxide includes: a conveying cylinder, a fixed plate, a transmission assembly, support legs, and a discharge pipe. A top cover is fixedly connected to the top of the conveying cylinder. A rotating rod is rotatably connected inside the conveying cylinder, and a screw is fixedly connected to the outside of the rotating rod. Multiple scrapers are fixedly connected to the outside of the screw. A feeding frame is fixedly connected to the top of the top cover, and a funnel is fixedly connected to the top of the feeding frame. Two rotating discs are rotatably connected to the inner wall of the feeding frame, and a rotating column is fixedly connected to the adjacent side of the two rotating discs. Multiple temporary storage slots are formed on the outside of the rotating column. This utility model avoids the problem of clogging of the feeding pipe caused by moisture absorption and agglomeration of raw materials or uneven particle size in traditional gravity feeding, ensuring smooth feeding, improving overall conveying efficiency, and avoiding equipment idling and production interruptions caused by blockages.
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Description

Technical Field

[0001] This utility model relates to the field of calcium oxide production technology, and in particular to a screw feeder for producing desulfurizing agent using calcium oxide. Background Technology

[0002] Calcium oxide is used as the main raw material in the production of desulfurizing agents through a specific process. Utilizing its chemical reaction with sulfur dioxide, it absorbs and removes sulfur oxides from flue gas and other media during the desulfurization process, thus achieving the environmental protection goal of desulfurization. A screw feeder is used in this production process because the rotation of the screw blades can evenly and stably transport materials such as calcium oxide to the designated location. This not only allows for precise control of the feed rate, meeting the accurate material input requirements of the production process, but also adapts to certain conveying distances and spatial layouts, ensuring the continuity and efficiency of the desulfurizing agent production process.

[0003] Most screw feeders used in calcium oxide desulfurization processes typically require calcium oxide powder or granular raw materials to be fed into the conveying pipe by gravity through the feed pipe. However, due to the high hygroscopicity of calcium oxide, the raw material is prone to moisture absorption, and the powder easily deliquesces into lumps. The adhesion between particles increases, and during gravity conveying, the lumpy material becomes difficult to slide smoothly due to its larger particle size. It may even adhere to and accumulate on the pipe wall, gradually clogging the pipe. The presence of excessively large particles in the raw material can also cause blockages, significantly reducing conveying efficiency.

[0004] Therefore, it is necessary to provide a new screw feeder for producing desulfurizing agents using calcium oxide to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a screw feeder for producing desulfurizing agent using calcium oxide.

[0006] This utility model provides a screw feeder for producing desulfurizing agent using calcium oxide, comprising: a conveying cylinder, a fixed plate, a transmission assembly, support legs, and a discharge pipe. A top cover is fixedly connected to the top of the conveying cylinder. A rotating rod is rotatably connected inside the conveying cylinder, and a screw is fixedly connected to the outside of the rotating rod. Multiple scrapers are fixedly connected to the outside of the screw. A feed frame is fixedly connected to the top of the top cover, and a funnel is fixedly connected to the top of the feed frame. Two rotating discs are rotatably connected to the inner wall of the feed frame, and a rotating column is fixedly connected to an adjacent side of the two rotating discs. Multiple temporary storage openings are provided on the outside of the rotating column. A transmission rod is fixedly connected to the inner wall of the trough and rotating column. A fixed plate is fixedly connected to the right end of the conveying cylinder. A carrying plate is fixedly connected to the bottom end of the fixed plate. A motor is fixedly connected to the top of the carrying plate on the side away from the conveying cylinder. A transmission assembly is installed on the side of the fixed plate away from the conveying cylinder. Two support legs are fixedly connected to the bottom end of the conveying cylinder. Two gaskets are fixedly connected to the bottom end of the support legs. A bearing frame is fixedly connected to the right side of the right support leg. A discharge pipe is fixedly connected to the bottom end of the top cover. An installation plate is installed at the bottom end of the conveying cylinder near the discharge pipe. A valve is installed inside the discharge pipe.

[0007] Preferably, the transmission assembly includes a drive wheel, one side of which is rotatably connected to the side of the fixed plate away from the conveying cylinder, and a driven wheel is rotatably connected to the top of the side of the fixed plate away from the conveying cylinder. A pulley is sleeved on the outside of the drive wheel and the driven wheel.

[0008] Preferably, the outer side of the transmission rod is rotatably connected to the inner wall of the feed frame, and the outer side of the plurality of scrapers is in contact with the inner wall of the conveying cylinder.

[0009] Preferably, the top inner wall of the fixed plate is rotatably connected to the outer side of the transmission rod away from the rotating column, and the top side of the carrying plate is fixedly connected to the bottom side of the conveying cylinder.

[0010] Preferably, the top of the support frame and the bottom of the load plate are fixedly connected.

[0011] Preferably, the side of the drive wheel furthest from the fixed plate is fixedly connected to the motor drive end.

[0012] Preferably, the shaft center on the side of the driving wheel away from the motor is fixedly connected to one end of the rotating rod, and the shaft center on the side of the driven wheel near the fixed plate is fixedly connected to the side of the transmission rod away from the rotating column.

[0013] Preferably, the side of the valve furthest from the feed pipe is fixedly connected to the side of the mounting plate.

[0014] Compared with related technologies, the screw feeder for producing desulfurizing agent using calcium oxide provided by this utility model has the following beneficial effects:

[0015] Solving the problem of feeding blockage: The transmission rod driven by the motor drives the rotating column inside the feeding frame to rotate. The temporary storage tank catches and transfers the calcium oxide raw material falling through the funnel, so that the raw material falls into the conveying cylinder by gravity at a specific position. This avoids the problem of feeding pipe blockage caused by moisture absorption and clumping of raw materials and uneven particle size in traditional gravity feeding, and ensures smooth feeding.

[0016] Ensuring conveying efficiency and stability: When the rotating rod rotates, the screw pushes the raw material to move, and the scraper rotates synchronously to scrape off the raw material adhering to the inner wall of the conveying cylinder, preventing accumulation and blockage, ensuring continuous and stable conveying of calcium oxide raw material, improving overall conveying efficiency, and avoiding situations such as equipment idling and production interruption caused by blockage. Attached Figure Description

[0017] Figure 1 This utility model provides a schematic diagram of the structure of a screw feeder for producing desulfurizing agent using calcium oxide;

[0018] Figure 2 for Figure 1 The diagram shows the structure of the conveyor cylinder;

[0019] Figure 3 for Figure 2 Enlarged view of point A in the image;

[0020] Figure 4 for Figure 1 Enlarged view of point B in the image.

[0021] Labels in the diagram: 1. Conveying cylinder; 2. Top cover; 3. Rotating rod; 4. Screw; 5. Scraper; 6. Feed frame; 7. Funnel; 8. Rotating disc; 9. Rotating column; 10. Temporary storage trough; 11. Transmission rod; 12. Fixed plate; 13. Carrying plate; 14. Motor; 15. Drive wheel; 16. Driven wheel; 17. Pulley; 18. Support leg; 19. Shim; 20. Bearing frame; 21. Discharge pipe; 22. Mounting plate; 23. Valve. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0024] Please see Figures 1 to 4A screw feeder for producing desulfurizing agent using calcium oxide includes: a conveying cylinder 1, a top cover 2 fixedly connected to the top of the conveying cylinder 1, a rotating rod 3 rotatably connected inside the conveying cylinder 1, a screw 4 fixedly connected to the outside of the rotating rod 3, and multiple scrapers 5 fixedly connected to the outside of the screw 4, with the outside of the multiple scrapers 5 in contact with the inner wall of the conveying cylinder 1.

[0025] It should be noted that: multiple scrapers 5 on the outside of the screw 4 rotate synchronously, and the scrapers 5 contact the inner wall of the conveying cylinder 1, which can scrape off the raw materials attached to the cylinder wall to prevent the raw materials from accumulating and blocking. The top cover 2 at the top of the conveying cylinder 1 plays a sealing role to ensure a stable conveying environment.

[0026] A feeding frame 6 is fixedly connected to the top of the top cover 2. A funnel 7 is fixedly connected to the top of the feeding frame 6. Two rotating disks 8 are rotatably connected to the inner wall of the feeding frame 6. A rotating column 9 is fixedly connected to the adjacent side of the two rotating disks 8. Multiple temporary storage slots 10 are opened on the outside of the rotating column 9. A transmission rod 11 is fixedly connected to the inner wall of the rotating column 9. The outside of the transmission rod 11 is rotatably connected to the inner wall of the feeding frame 6.

[0027] It should be noted that when the transmission rod 11 rotates, it drives the rotating column 9 inside the feed frame 6 to rotate. The temporary storage tank 10 outside the rotating column 9 rotates with it, and catches and transfers the calcium oxide raw material that falls into the feed frame 6 through the funnel 7. When the temporary storage tank 10 rotates to a specific position, the raw material falls into the conveying cylinder 1 by gravity, which avoids the problem of easy blockage in traditional gravity feeding.

[0028] Fixed plate 12 is fixedly connected to the right end of conveying cylinder 1. Fixed plate 12 is fixedly connected to the bottom end of fixed plate 12. The top inner wall of fixed plate 12 is rotatably connected to the outside of the transmission rod 11 away from the rotating column 9. The top side of the carrying plate 13 is fixedly connected to the bottom side of the conveying cylinder 1. The top side of the carrying plate 13 away from the conveying cylinder 1 is fixedly connected to the motor 14.

[0029] The transmission assembly is installed on the side of the fixed plate 12 away from the conveying cylinder 1. The transmission assembly includes a drive wheel 15. The side of the drive wheel 15 away from the fixed plate 12 is fixedly connected to the drive end of the motor 14. The side of the drive wheel 15 is rotatably connected to the side of the fixed plate 12 away from the conveying cylinder 1. The top of the side of the fixed plate 12 away from the conveying cylinder 1 is rotatably connected to a driven wheel 16. The shaft of the drive wheel 15 away from the motor 14 is fixedly connected to one end of the rotating rod 3. The shaft of the driven wheel 16 near the fixed plate 12 is fixedly connected to the side of the transmission rod 11 away from the rotating column 9. A pulley 17 is sleeved on the outside of the drive wheel 15 and the driven wheel 16.

[0030] It should be noted that: Motor 14 drives the drive wheel 15 to start rotating. The drive wheel 15 drives the driven wheel 16 to rotate synchronously via the pulley 17. At the same time, the drive wheel 15 directly drives the rotating rod 3 to rotate, while the driven wheel 16 drives the transmission rod 11 to rotate.

[0031] Support legs 18, two support legs 18 are fixedly connected to the bottom end of the conveying cylinder 1, and two pads 19 are fixedly connected to the bottom end of the support legs 18. The conveying cylinder 1 is stably supported by the support legs 18 and the pads 19. A bearing frame 20 is fixedly connected to the right side of the right support leg 18. The top end of the bearing frame 20 is fixedly connected to the bottom end of the carrying plate 13.

[0032] The bottom end of the top cover 2 is fixedly connected to the discharge pipe 21. The bottom end of the conveying cylinder 1 is equipped with an installation plate 22 near the discharge pipe 21. A valve 23 is installed inside the discharge pipe 21. The side of the valve 23 away from the discharge pipe 21 is fixedly connected to the side of the installation plate 22.

[0033] The working principle of the screw feeder for producing desulfurizing agent using calcium oxide provided by this utility model is as follows:

[0034] The motor 14 is started, driving the drive wheel 15 to rotate. The drive wheel 15 drives the driven wheel 16 to rotate synchronously via the pulley 17. Simultaneously, the drive wheel 15 directly drives the rotating rod 3 to rotate, and the driven wheel 16 drives the transmission rod 11 to rotate. When the transmission rod 11 rotates, it drives the rotating column 9 inside the feed frame 6 to rotate. The temporary storage tank 10 outside the rotating column 9 rotates with it, catching and transferring the calcium oxide raw material that falls into the feed frame 6 through the funnel 7. When the temporary storage tank 10 rotates to a specific position, the raw material falls into the conveying cylinder 1 by gravity, avoiding the problem of easy clogging in traditional gravity feeding. During the rotation of the rotating rod 3, the screw 4 outside it rotates accordingly, pushing the calcium oxide raw material in the conveying cylinder 1 to move in a designated direction. At the same time, multiple scrapers 5 outside the screw 4 rotate synchronously. The scrapers 5 contact the inner wall of the conveying cylinder 1, scraping off the raw material adhering to the cylinder wall to prevent raw material accumulation and clogging. The top cover 2 at the top of the conveying cylinder 1 acts as a seal, ensuring a stable conveying environment. When the raw material is conveyed to the discharge pipe 21, if the valve 23 is opened, the raw material will fall through the discharge pipe 21 to achieve unloading. If the valve 23 is closed, the raw material can be temporarily stored to flexibly adapt to the production rhythm.

[0035] During operation, the conveying cylinder 1 is stably supported by the support leg 18 and the pad 19. The bearing frame 20 on the right support leg 18 helps to stabilize the load plate 13. The load plate 13 carries components such as the motor 14, while the fixed plate 12 provides a support for the installation and rotation of the transmission components.

[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A screw feeder for producing desulfurizer using calcium oxide, characterized by, include: A conveying cylinder (1) is provided with a top cover (2) fixedly connected to the top of the conveying cylinder (1). A rotating rod (3) is rotatably connected inside the conveying cylinder (1). A screw (4) is fixedly connected to the outside of the rotating rod (3). Multiple scrapers (5) are fixedly connected to the outside of the screw (4). A feeding frame (6) is fixedly connected to the top of the top cover (2). A funnel (7) is fixedly connected to the top of the feeding frame (6). Two rotating disks (8) are rotatably connected to the inner wall of the feeding frame (6). A rotating column (9) is fixedly connected to the adjacent side of the two rotating disks (8). Multiple temporary storage slots (10) are opened on the outside of the rotating column (9). A transmission rod (11) is fixedly connected to the inner wall of the rotating column (9). Fixed plate (12), fixed plate (12) is fixedly connected to the right end of conveying cylinder (1), fixed plate (13) is fixedly connected to the bottom end of fixed plate (12), and motor (14) is fixedly connected to the top of the loading plate (13) on the side away from conveying cylinder (1). The transmission assembly is mounted on the side of the fixed plate (12) away from the conveying cylinder (1); Support legs (18), two support legs (18) are fixedly connected to the bottom end of the conveying cylinder (1), two gaskets (19) are fixedly connected to the bottom end of the support legs (18), and a bearing frame (20) is fixedly connected to the right side of the support leg (18) on the right side. The bottom end of the top cover (2) is fixedly connected to the discharge pipe (21), and the bottom end of the conveying cylinder (1) is equipped with an installation plate (22) near the discharge pipe (21). A valve (23) is installed inside the discharge pipe (21).

2. A screw feeder for producing desulfurizing agent using calcium oxide according to claim 1, characterized in that, The transmission assembly includes a drive wheel (15), one side of which is rotatably connected to the side of the fixed plate (12) away from the conveying cylinder (1). A driven wheel (16) is rotatably connected to the top of the side of the fixed plate (12) away from the conveying cylinder (1). A pulley (17) is sleeved on the outside of the drive wheel (15) and the driven wheel (16).

3. A screw feeder for producing desulfurizing agent using calcium oxide according to claim 1, characterized in that, The outer side of the transmission rod (11) is rotatably connected to the inner wall of the feed frame (6), and the outer side of the plurality of scrapers (5) is in contact with the inner wall of the conveying cylinder (1).

4. A screw feeder for producing desulfurizing agent using calcium oxide according to claim 1, characterized in that, The top inner wall of the fixed plate (12) is rotatably connected to the outside of the transmission rod (11) away from the rotating column (9), and the top side of the carrying plate (13) is fixedly connected to the bottom side of the conveying cylinder (1).

5. A screw feeder for producing desulfurizing agent using calcium oxide according to claim 1, characterized in that, The top of the support frame (20) is fixedly connected to the bottom of the load plate (13).

6. A screw feeder for producing desulfurizing agent using calcium oxide according to claim 2, characterized in that, The side of the drive wheel (15) away from the fixed plate (12) is fixedly connected to the drive end of the motor (14).

7. A screw feeder for producing desulfurizing agent using calcium oxide according to claim 2, characterized in that, The drive wheel (15) is fixedly connected to one end of the rotating rod (3) at the axis away from the motor (14), and the driven wheel (16) is fixedly connected to the side of the transmission rod (11) away from the rotating column (9) at the axis near the fixed plate (12).

8. A screw feeder for producing desulfurizing agent using calcium oxide according to claim 1, characterized in that, The side of the valve (23) away from the feed pipe (21) is fixedly connected to the side of the mounting plate (22).