Sealed dust-falling transportation equipment for small-particle coke of blast furnace
By designing a small-grain coke sealed dust reduction transportation equipment for blast furnaces and using the combination of screening frames and conveyor belts, the problem of small-grain coke utilization in blast furnace production is solved, efficient screening and recycling is achieved, and production costs and dust pollution are reduced.
Patent Information
- Application Number
- CN202421475741.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-06-26
AI Technical Summary
The prior art is difficult to effectively utilize and transport small-grain coke in blast furnace production, resulting in waste of iron ore and coke raw materials and increasing blast furnace production costs.
A blast furnace small-grain coke sealed dust reduction transportation equipment is designed, including mounting frames, support rods, screening frames, transport belts and vibration motors. Through the combination of screening frames and transport belts, screening and recycling of small-grain cokes can be achieved and dust pollution is reduced.
It improves the production efficiency of blast furnaces, reduces the waste of iron ore and coke raw materials, reduces the cost of blast furnace iron smelting, realizes effective screening and recycling of blast furnace raw materials, and improves the utilization rate of production resources.
Smart Images
Figure CN222974426U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of blast furnace production and processing, in particular to a sealed dust-removing transportation device for small-sized coke in a blast furnace. Background Art
[0002] To ensure the permeability of the blast furnace burden, the particle size requirements for metallurgical coke entering the furnace are very strict. For a long time, the screened fine coke generated during the sizing process is utilized as a resource, and after screening out the powder, it is returned to the blast furnace as small-sized coke. Usually, the utilization of small-sized coke depends on the amount of small-sized coke produced from self-produced metallurgical coke. To ensure the stable operation of the blast furnace and reduce the coke ratio, it is required that the large-sized coke has a uniform particle size. Generally, the particle size of the blast furnace coke is controlled between 25 - 80 mm, thus generating a large amount of small-sized coke, so it is necessary to clean, transport, and use the small-sized coke.
[0003] The existing Chinese utility model patent with the reference publication number: C206705302U discloses a crushed coke truck for blast furnace smelting. The utility model includes a base, casters, a carriage, an installation chamber, a humidifier, a diverter, a movable feed door, a counterweight, a motor, a reduction gearbox, a rotating shaft, a transverse scraper, a vertical scraper, an electromagnetic oscillator, an ear plate, and a push rod; casters are installed at the four corners of the lower surface of the base, a groove is provided at one end of the upper surface of the base, the tail of the push rod is installed in the groove, the top of the push rod is hinged to the bottom of one end of the carriage, and two ear plates are symmetrically installed at the bottom of the other end of the carriage and the top of one end of the base; the carriage is of a square structure, and a cylindrical storage chamber is provided inside the carriage, and a feed inlet is provided at the top of the storage chamber. The utility model has a novel structure and is scientifically and reasonably designed; a humidifying device is added at the feed inlet to eliminate dust pollution and is beneficial to the physical health of workers; a scraper is provided inside the storage chamber to prevent the crushed coke from adhering to the inner wall of the storage chamber and does not affect the next use.
[0004] With the continuous development of blast furnace ironmaking, a lot of small-sized coke is generated in blast furnace ironmaking. Most workers directly transport and clean up these small-sized cokes with a coke particle truck. However, this is likely to cause waste of iron ore and coke raw materials, reduce the utilization of blast furnace production resources, and thus increase the cost of blast furnace raw material ironmaking, affecting the normal production of the blast furnace. Content of the Utility Model
[0005] (I) Technical Problems to be Solved
[0006] In view of the deficiencies of the prior art, the utility model provides a sealed dust-removing transportation device for small-sized coke in a blast furnace, which has the advantages of facilitating the screening and transportation of small-sized coke in the blast furnace and improving the production efficiency of the blast furnace, and solves the above technical problems.
[0007] (II) Technical Solutions
[0008] To achieve the above object, the present utility model provides the following technical solutions: The small-sized coke sealed dust-removing transportation equipment for blast furnaces includes a mounting rack for installation and cooperation. A support rod for support and connection is fixedly connected below the mounting rack. A conveyor belt for raw material transportation is movably connected inside the mounting rack. A screening frame for screening granular coke blocks is movably connected inside the support rod. Inclined rods for installing screening plates are fixedly connected to both sides of the inner surface of the screening frame. A screening plate for increasing raw material recovery is fixedly connected above the inclined rods. A screening hole for screening small-sized coke is fixedly penetrated through one side of the screening plate. A chamber for storing small-sized coke is fixedly connected below the screening frame. A conveyor belt for transportation is movably connected above the screening plate. The screening plate is fixedly installed above the chamber for connection and cooperation. A connecting plate for increasing practicality is fixedly connected to one side of the screening plate. Baffles for blocking small-sized coke are fixedly connected to both ends above the connecting plate. A vibration motor for connection and drive is fixedly installed below the screening frame.
[0009] As a preferred technical solution of the present utility model, a baffle is fixedly connected to one end of the screening frame. The baffle and the connecting plate are structurally connected to present an "L" shape; the baffle and the connecting plate cooperate with each other.
[0010] As a preferred technical solution of the present utility model, rotating shaft motors are fixedly connected to both outer ends of the mounting rack. A rotating shaft rod is fixedly connected to one side of the rotating shaft motor. A limit sleeve is fixedly connected to the outer surface of the rotating shaft rod; the limit sleeve is used for connecting and installing between the rotating shaft rod and the central rod.
[0011] As a preferred technical solution of the present utility model, a central rod is fixedly connected to one end of the rotating shaft rod. A conveyor belt is movably connected to the outer surface of the central rod. A transportation hole is fixedly penetrated through the outer side of the conveyor belt. A limit sleeve is fixedly connected to the outer side of the central rod; the limit sleeve is correspondingly connected to both sides of the conveyor belt for cooperation.
[0012] As a preferred technical solution of the present utility model, a square sleeve is fixedly connected to the outer surface of the support rod. A fixing plate is fixedly connected to one side of the square sleeve. Buffer columns are fixedly connected to both ends above the fixing plate; the buffer columns are used for buffering and protecting between the fixing plate and the screening frame.
[0013] As a preferred technical solution of the present utility model, a buffer column is fixedly connected below the screening frame. A baffle is fixedly installed on one side below the conveyor belt; the baffle is correspondingly connected to one end below the conveyor belt for cooperation.
[0014] Compared with the prior art, the present utility model provides a small-sized coke sealed dust-removing transportation equipment for blast furnaces, which has the following beneficial effects:
[0015] The utility model is used for transporting small-sized coke in a blast furnace. During the transportation process, it is convenient to screen the small-sized coke. Then, the transportation equipment is connected to one side of the blast furnace granulated coke production equipment for combined use. The blast furnace ore and coke raw materials are transported onto the conveyor belt, and the conveyor belt penetrates through multiple transportation holes. The transportation holes are used to transport and screen the small pieces of ore and coke raw materials into the lower screening frame. Subsequently, an inclined rod is installed inside the screening frame, and a screening plate is installed above the inclined rod. The screening plate screens the small-sized coke again, and the smaller-sized coke is conveyed through the screening holes into the lower chamber. Then, the medium-sized coke on the screening plate and the conveyor belt is recovered and reused. The formed square chamber plays an effect of sealing and dust reduction, reducing the environmental protection pressure. At the same time, it achieves the screening of the granulated coke of the blast furnace ore and coke raw materials during transportation, avoiding the waste of ore and coke raw materials, improving the utilization of blast furnace production resources, reducing the blast furnace ironmaking cost, and facilitating the normal production of the blast furnace. Description of the Drawings
[0016] Figure 1 It is a schematic structural diagram of the utility model;
[0017] Figure 2 It is a schematic diagram of the conveyor belt of the utility model;
[0018] Figure 3 It is a schematic diagram of the screening frame of the utility model;
[0019] Figure 4 It is a schematic diagram of the screening plate of the utility model;
[0020] Figure 5 It is a schematic diagram of the installation of the vibration motor of the utility model.
[0021] Among them: 1. Mounting frame; 11. Rotating shaft motor; 12. Rotating shaft rod; 13. Limiting sleeve; 14. Central rod; 15. Conveyor belt; 16. Transportation hole; 2. Support rod; 21. Square sleeve; 22. Fixed plate; 23. Buffer column; 3. Screening frame; 31. Inclined rod; 32. Screening plate; 33. Screening hole; 34. Connecting plate; 35. Baffle; 36. Chamber; 37. Vibration motor. Specific Embodiments
[0022] The following further describes in detail the embodiments of the utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.
[0023] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, terms such as "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0024] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected to" should be understood in a broad sense. For example, it 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 directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0025] Combined with the attached Figures 1 - 5 , in this embodiment, the blast furnace small granular coke sealed dust-removing transportation device includes a mounting frame 1. A support rod 2 is fixedly connected below the mounting frame 1. A conveyor belt 15 is movably connected inside the mounting frame 1. A screening frame 3 is movably connected inside the support rod 2. Two inclined rods 31 are fixedly connected to both sides of the inner surface of the screening frame 3. A screening plate 32 is fixedly connected above the inclined rods 31. A screening hole 33 is fixedly penetrated and connected to one side of the screening plate 32. A chamber 36 is fixedly connected below the screening frame 3. The conveyor belt 15 is movably connected above the screening plate 32. The screening plate 32 is fixedly installed above the chamber 36. A connecting plate 34 is fixedly connected to one side of the screening plate 32. Two baffles 35 are fixedly connected to both ends above the connecting plate 34. A vibration motor 37 is fixedly installed below the screening frame 3.
[0026] One end of the screening frame 3 is fixedly connected with a baffle 35, and the baffle 35 and the connecting plate 34 are structurally connected to present an "L" shape.
[0027] Specifically, a conveyor belt 15 is movably installed inside the mounting frame 1. The conveyor belt 15 is used for transporting granular coke, the raw material of the blast furnace, facilitating the transportation and cooperation of iron ore and coke raw materials used in blast furnace production. However, there are some small granular cokes during the raw material transportation process, and some medium-sized granular cokes among the small granular cokes can still be used. Therefore, during the transportation of small granular cokes, the small granular cokes are screened to increase the cost of material recycling and improve production efficiency. Subsequently, a screening frame 3 is correspondingly installed below the conveyor belt 15. An inclined rod 31 is installed on the inner surface of the screening frame 3, and the upper part of the inclined rod 31 is fixedly connected to a screening plate 32. The screening plate 32 has a structure with multiple screening holes 33, facilitating the secondary screening of small granular cokes, increasing the recycling effect during the transportation of small granular cokes, and improving the functional use of the blast furnace small granular coke sealed dust removal transportation equipment.
[0028] Both ends of the outer side of the mounting frame 1 are fixedly connected with a rotating shaft motor 11. One side of the rotating shaft motor 11 is fixedly connected with a rotating shaft rod 12, and a limiting sleeve 13 is fixedly connected to the outer surface of the rotating shaft rod 12.
[0029] One end of the rotating shaft rod 12 is fixedly connected with a central rod 14. The outer surface of the central rod 14 is movably connected with a conveyor belt 15. The outer side of the conveyor belt 15 is fixedly connected and penetrated with a transport hole 16, and a limiting sleeve 13 is fixedly connected to the outer side of the central rod 14.
[0030] A square sleeve 21 is fixedly connected to the outer surface of the support rod 2. One side of the square sleeve 21 is fixedly connected with a fixing plate 22, and both ends above the fixing plate 22 are fixedly connected with buffer columns 23.
[0031] The screening frame 3 is fixedly connected with buffer columns 23 below, and a baffle 35 is fixedly installed on one side below the conveyor belt 15.
[0032] Specifically, a rotating shaft motor 11 is installed on one side of the mounting frame 1. When the rotating shaft motor 11 is turned on, it drives the central rod 14 to vibrate, and the central rod 14 drives the outer conveyor belt 15 to rotate, facilitating the transportation of small granular cokes in the blast furnace. Thus, the mounting frame 1 is supported by support rods 2 below. Six support rods 2 are connected to the lower part of the mounting frame 1, facilitating the increase of the stability of the mounting frame 1 and the screening frame 3. Furthermore, square sleeves 21 are correspondingly connected to the outer sides of the support rods 2. A fixing plate 22 is installed on the opposite side of the square sleeve 21, and a vibration motor 37 is installed above the fixing plate 22 in the middle position. Furthermore, buffer columns 23 are installed above both ends of the fixing plate 22. The buffer columns 23 are used to assist the cooperation of the screening frame 3, increasing the cooperation between the structures of the blast furnace small granular coke sealed dust removal transportation equipment.
[0033] Working principle: It is fixedly connected above the support rod 2 and the mounting frame 1. The mounting frame 1 installs the overall small-sized coke dust-sealing transportation equipment for blast furnaces on one side of the blast furnace raw material processing equipment for use in transporting the blast furnace production raw materials. A rotating shaft motor 11 of model YE2-90L-2 is installed on one side of the mounting frame 1. The staff turns on the rotating shaft motor 11, and the rotating shaft motor 11 drives the rotating shaft rod 12 to rotate. One side of the rotating shaft rod 12 is fixedly connected to the central rod 14, facilitating the vibration of the central rod 14. A conveyor belt 15 is installed outside the central rod 14, and the conveyor belt 15 vibrates with the central rod 14 for use. The raw material coke particles are transported through the rotation of the conveyor belt 15. However, the coke particles are divided into small-sized coke and medium-sized coke. The medium-sized coke can be recycled and used again. Therefore, a screening frame 3 is correspondingly installed below the conveyor belt 15. Multiple transport holes 16 are provided in the structure of the conveyor belt 15, and the small-sized coke pieces are screened into the lower screening frame 3 through the transport holes 16. Then, the vibration motor 37 of model YZD-20-4 above the fixed plate 22 is turned on. The vibration motor 37 drives the screening frame 3 to vibrate inside the support rod 2 first. An inclined rod 31 is installed above the inner part of the screening frame 3, and a screening plate 32 is installed above the inclined rod 31. Multiple screening holes 33 are provided in the screening plate 32, and the screening holes 33 are used for the small-sized coke raw materials again to recycle the medium-sized coke again. Thus, the medium-sized coke that stops above the conveyor belt 15 and the screening plate 32 during transportation is recycled and used again. The staff can collect the small-sized coke screened into the chamber 36.
[0034] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A sealed dust reduction and transportation device for blast furnace small coke, comprising a mounting frame (1), a support rod (2) being fixedly connected to the lower side of the mounting frame (1), characterized in that: The interior of the mounting frame (1) is movably connected to a conveyor belt (15), the interior of the support rod (2) is movably connected to a screening frame (3), both sides of the inner surface of the screening frame (3) are fixedly connected to tilting rods (31), a screening plate (32) is fixedly connected above the tilting rods (31), one side of the screening plate (32) is fixedly connected with a screening hole (33), the bottom of the screening frame (3) is fixedly connected to a chamber (36), the top of the screening plate (32) is movably connected to a conveyor belt (15), the screening plate (32) is fixedly mounted above the chamber (36), one side of the screening plate (32) is fixedly connected to a connecting plate (34), the upper ends of the connecting plate (34) are fixedly connected to baffles (35), and a vibration motor (37) is fixedly mounted below the screening frame (3).
2. The sealed dust reduction transportation equipment for blast furnace small coke according to claim 1, characterized in that: A baffle plate (35) is fixedly connected to one end of the screening frame (3), and the baffle plate (35) and the connecting plate (34) are structurally connected to form an "L" shape.
3. The sealed dust reduction transportation equipment for blast furnace small coke according to claim 1, characterized in that: The two ends of the outer side of the mounting frame (1) are fixedly connected to a rotating shaft motor (11), one side of the rotating shaft motor (11) is fixedly connected to a rotating shaft rod (12), and the outer surface of the rotating shaft rod (12) is fixedly connected to a limiting sleeve (13).
4. The sealed dust reduction transportation equipment for blast furnace small coke according to claim 3, characterized in that: One end of the rotating shaft rod (12) is fixedly connected to a center rod (14), the outer surface of the center rod (14) is movably connected to a conveyor belt (15), the outer side of the conveyor belt (15) is fixedly connected to a conveyor hole (16) passing through, and the outer side of the center rod (14) is fixedly connected to a limiting sleeve (13).
5. The sealed dust reduction transportation equipment for blast furnace small coke according to claim 1, characterized in that: A square sleeve (21) is fixedly connected to the outer surface of the support rod (2), a fixing plate (22) is fixedly connected to one side of the square sleeve (21), and buffer columns (23) are fixedly connected to both ends of the upper side of the fixing plate (22).
6. The sealed dust reduction transportation equipment for blast furnace small coke according to claim 1, characterized in that: A buffer column (23) is fixedly connected to the bottom of the screening frame (3), and a baffle (35) is fixedly installed on one side below the conveyor belt (15).