A drying device for pellets of a steel plant sediment raw material

By combining a rotating drum and a fan-shaped stirring block, the problems of uneven heating and low efficiency in existing equipment are solved, enabling rapid and uniform drying of steel plant sediment raw material pellets and improving production efficiency.

CN224353447UActive Publication Date: 2026-06-12KEOU METALLURGICAL ENGINEERING TECHNOLOGY (JIANGSU) CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KEOU METALLURGICAL ENGINEERING TECHNOLOGY (JIANGSU) CO LTD
Filing Date
2025-08-13
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Existing steel plant dust and sludge metallization pellet drying equipment is inefficient in terms of upper and lower metal pellet transfer and heating uniformity, making it difficult to achieve rapid and comprehensive heating effects.

Method used

The rotating drum structure, combined with heating tubes and fan-shaped stirring blocks, achieves thorough stirring and tumbling of the metal pellets through the rotation of the drum and the relative movement of the fan-shaped stirring blocks, thereby improving heating uniformity and efficiency.

🎯Benefits of technology

This improved the speed and efficiency of pellet drying, ensured uniform heating and saved time and effort in production, and enhanced overall production efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224353447U_ABST
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Abstract

The utility model belongs to the steel metallurgy technical field, concretely relates to a kind of drying device for pellet of steel plant sediment raw material. Including working stand, heating pipe is fixedly installed in the working stand, the drum is rotatably connected in the working stand, the heating pipe is slidably connected with drum, high-efficiency drying assembly is equipped with in the working stand corresponding drum. The utility model is improved and optimized by structure, the drum for stirring and heating is transversely placed, can sufficiently increase the overall heating area, improve the speed of drying, by the rotation of drum itself, relative movement of fan-shaped stirring block is matched, can fully stir and overturn metal pellet, so that heating is more uniform, overturn is more thorough, improve the overall drying efficiency.
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Description

Technical Field

[0001] This utility model belongs to the field of iron and steel metallurgy technology, and specifically relates to a drying device for pellets of sludge raw materials in steel plants. Background Technology

[0002] As environmental legislation becomes increasingly stringent, the requirements for the environmental adaptability of steel enterprises are also constantly increasing. As a result, technologies and methods for reducing energy consumption, reducing waste emissions, and recycling waste are being vigorously promoted in steel plants.

[0003] As disclosed in the publication (announcement) number CN217110343U, this utility model discloses a drying device for metallized pellets made from dust and sludge in steel plants, relating to the field of iron and steel metallurgy technology. The technical solution includes a drying device body, a drying drum, and a turntable. The drying device body also includes a base installed at the bottom, a side plate installed on the top of the base, a servo motor fixedly connected to the inner side of the side plate, a small pulley installed at the output end of the servo motor, a belt sleeved on the outer surface of the small pulley, a large pulley sleeved on the inner wall of the belt, a drying drum installed at the right end of the large pulley, and a drum body. The drying drum body also includes a drum body with an opening at the bottom. A heating ring is installed on the inner wall of the bottom of the drum body, and a heating tube is fixedly connected to the inner wall of one side of the drum body. This utility model has the advantages of improving the drying speed and heating uniformity of the metallized pellets during drying, increasing the drying rate, and saving time and effort in the unloading process after drying, thus improving production efficiency.

[0004] Analysis revealed that the current solution, relying solely on the stirring of the lower mixing device, is insufficient to achieve the transfer and rotation of the upper and lower metal pellets, or requires a long cycle to achieve a comprehensive and uniform heating effect, resulting in low overall efficiency. To address these issues, the solution needs to be optimized and improved. Utility Model Content

[0005] To address the problems existing in the background technology, this utility model provides a drying device for pellets of sludge raw materials from steel plants; it can perform corresponding heating and improves the overall working efficiency through the use of a rotating drum.

[0006] This utility model provides a drying device for pellets of sludge raw materials from steel plants, including a working frame. A heating tube is fixedly installed inside the working frame, and a drum is rotatably connected inside the working frame. The heating tube is slidably connected to the drum. A high-efficiency drying component is provided on the working frame corresponding to the drum. The high-efficiency drying component includes a transmission rod fixedly connected to the drum. A gear one is fixedly installed at one end of the transmission rod extending out of the working frame. A motor is fixedly installed on the working frame corresponding to gear one. A gear two is fixedly installed on the output end of the motor. Gear one and gear two mesh with each other. A connecting shaft is fixedly installed at the other end of the working frame away from the transmission rod. A connecting rod is fixedly installed at one end of the connecting shaft extending into the drum. A fan-shaped stirring block is fixedly installed on the connecting rod. The fan-shaped stirring block is slidably connected to the inner wall of the drum.

[0007] Furthermore, the roller is hinged to an opening and closing plate, and the opening and closing plate is symmetrically provided with control grooves.

[0008] Furthermore, a reinforcing plate is fixedly installed on the connecting shaft corresponding to the work frame.

[0009] Furthermore, an auxiliary wheel is symmetrically rotatably connected to the corresponding roller inside the work frame, and a support rod is rotatably connected inside the work frame, with an auxiliary wheel symmetrically fixedly installed on the support rod.

[0010] Furthermore, a ramp is fixedly installed on the work frame.

[0011] The beneficial effects of this utility model are:

[0012] This invention improves and optimizes the structure by placing the drum used for stirring and heating horizontally, which can significantly increase the overall heating area and improve the drying speed. Through the rotation of the drum itself, combined with the relative movement of the fan-shaped stirring blocks, the metal balls can be thoroughly stirred and turned, resulting in more uniform heating, more thorough turning, and improved overall drying efficiency. Attached Figure Description

[0013] Figure 1 This is a front perspective view of a drying device for pellets of sludge raw materials in steel plants, according to the present invention.

[0014] Figure 2 This is a rear perspective view of a drying device for pellets of sludge raw materials in steel plants, according to the present invention.

[0015] Figure 3 This is a schematic diagram of the drying device for pellets of sludge raw materials in steel plants after the drum has been removed.

[0016] Figure 4 This is a schematic diagram of the drum of a drying device for pellets of sludge raw materials in steel plants, according to the present invention.

[0017] Figure 5 This is a cross-sectional view of the drum of a drying device for pellets of sludge raw materials in steel plants, according to the present invention.

[0018] As shown in the figure:

[0019] 1. Working frame, 2. Heating tube, 3. Drum, 4. Transmission rod, 5. Gear 1, 6. Motor, 7. Gear 2, 8. Connecting shaft, 9. Connecting rod, 10. Fan-shaped stirring block, 11. Opening and closing plate, 12. Control groove, 13. Reinforcing plate, 14. Auxiliary wheel 1, 15. Support rod, 16. Auxiliary wheel 2, 17. Ramp. Detailed Implementation

[0020] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Please refer to the accompanying diagrams in all instruction manuals:

[0023] A drying device for pellets of sludge raw materials in steel plants includes a working frame 1, a heating tube 2 fixedly installed inside the working frame 1, a drum 3 rotatably connected inside the working frame 1, the heating tube 2 and the drum 3 being slidably connected, and a high-efficiency drying component being provided on the working frame 1 corresponding to the drum 3.

[0024] The high-efficiency drying component includes a transmission rod 4 fixedly connected to the drum 3. A gear 5 is fixedly installed at one end of the transmission rod 4 that extends out of the working frame 1. A motor 6 is fixedly installed on the working frame 1 corresponding to the gear 5. A gear 7 is fixedly installed on the output end of the motor 6. The gear 5 and the gear 7 mesh with each other. A connecting shaft 8 is fixedly installed at the other end of the working frame 1 away from the transmission rod 4. A connecting rod 9 is fixedly installed at one end of the connecting shaft 8 that extends into the drum 3. A fan-shaped stirring block 10 is fixedly installed on the connecting rod 9. The fan-shaped stirring block 10 is slidably connected to the inner wall of the drum 3.

[0025] As described above, when metal balls are placed inside drum 3, the motor 6 and heating tube 2 are controlled to work, driving gear 5 and gear 7 to rotate, causing drum 3 to rotate. Heating tube 2 comes into contact with the outer wall of drum 3, transferring heat to the metal balls inside drum 3. At the same time, as drum 3 rotates, the internal fan-shaped stirring blocks 10 are stationary relative to the working frame 1, while drum 3 rotates relative to the working frame 1. Therefore, the fan-shaped stirring blocks 10 and drum 3 move relative to each other, which can stir the metal balls inside drum 3. Due to the shape of the fan-shaped stirring blocks 10, the metal balls can be thoroughly turned over, thereby improving the overall drying efficiency.

[0026] As a technical optimization of this utility model, the roller 3 is hinged to an opening and closing plate 11, and the opening and closing plate 11 is symmetrically provided with control grooves 12.

[0027] As can be seen from the above description, the opening and closing plate 11 can be opened or closed by pulling the control groove 12, so as to load and unload the metal balls inside the roller 3.

[0028] As a technical optimization of this utility model, the connecting shaft 8 is fixedly installed with a reinforcing plate 13 corresponding to the working frame 1;

[0029] As can be seen from the above description, the reinforcing plate 13 can improve the structural rigidity of the connecting shaft 8 and make the connection between it and the work frame 1 tighter.

[0030] As a technical optimization of this utility model, an auxiliary wheel 14 is symmetrically rotatably connected to the roller 3 inside the work frame 1, and a support rod 15 is rotatably connected inside the work frame 1. An auxiliary wheel 16 is symmetrically fixedly installed on the support rod 15.

[0031] As can be seen from the above description, auxiliary wheel 14 and auxiliary wheel 2 16 can improve the stability of roller 3.

[0032] As a technical optimization of this utility model, a ramp 17 is fixedly installed on the work frame 1;

[0033] As can be seen from the above description, ramp 17 can facilitate the loading and unloading of metal pellets.

[0034] The working process of this utility model is as follows:

[0035] Pulling the control slot 12 opens or closes the opening and closing plate 11, allowing metal balls to be placed into the drum 3. The control motor 6 and heating tube 2 operate, driving gear 5 and gear 7 to rotate, causing the drum 3 to rotate. The heating tube 2 contacts the outer wall of the drum 3, transferring heat to the metal balls inside the drum 3. Simultaneously, as the drum 3 rotates, the internal fan-shaped stirring blocks 10 remain stationary relative to the working frame 1, while the drum 3 rotates relative to the working frame 1. Therefore, the fan-shaped stirring blocks 10 and the drum 3 move relative to each other, achieving stirring of the metal balls inside the drum 3. Due to the shape of the fan-shaped stirring blocks 10, the metal balls can be thoroughly turned over, thereby improving the overall drying efficiency.

[0036] The present invention and its embodiments have been described above. This description is not restrictive, and the specific embodiments shown are only one of the embodiments of the present invention. The actual structure is not limited to this. In short, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.

Claims

1. A drying device for pellets of sludge raw material from steel plants, comprising a working frame, characterized in that: A heating tube is fixedly installed inside the working frame, and a drum is rotatably connected inside the working frame. The heating tube is slidably connected to the drum. A high-efficiency drying component is provided on the working frame corresponding to the drum. The high-efficiency drying component includes a transmission rod fixedly connected to the drum. A gear one is fixedly installed at one end of the transmission rod extending out of the working frame. A motor is fixedly installed on the working frame corresponding to gear one. A gear two is fixedly installed on the output end of the motor. Gear one and gear two mesh with each other. A connecting shaft is fixedly installed at the other end of the working frame away from the transmission rod. A connecting rod is fixedly installed at one end of the connecting shaft extending into the drum. A fan-shaped stirring block is fixedly installed on the connecting rod. The fan-shaped stirring block is slidably connected to the inner wall of the drum.

2. The drying device for pellets of steel plant sludge raw material according to claim 1, characterized in that: The roller is hinged to an opening and closing plate, and the opening and closing plate is symmetrically provided with control grooves.

3. The drying device for pellets of steel plant sludge raw material according to claim 1, characterized in that: A reinforcing plate is fixedly installed on the corresponding work frame of the connecting shaft.

4. A drying device for pellets of steel plant sludge raw material according to claim 1, characterized in that: The work frame is symmetrically connected to the corresponding rollers and has an auxiliary wheel 1. The work frame is rotatably connected to a support rod, and the support rod is symmetrically fixedly mounted with an auxiliary wheel 2.

5. A drying device for pellets of steel plant sludge raw material according to claim 1, characterized in that: A ramp is fixedly installed on the work frame.