Blast furnace material distributor capable of alternately feeding materials

By designing a blast furnace material distributor that allows for alternating feeding, uniform material distribution and alternating conveying were achieved, solving the problem of high production costs caused by the wide variety of limonite powders, reducing the cost per ton of iron and improving the company's economic benefits.

CN223620408UActive Publication Date: 2025-12-02XUZHOU HUAHONG SPECIAL STEEL CO LTD
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Patent Information

Application Number
CN202423247869.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-27
Publication Date
2025-12-02
Estimated Expiration
2034-12-27

AI Technical Summary

Technical Problem

Existing blast furnace material distributors exhibit significant differences in sintering performance and metallurgical value when handling a wide variety of limonite powders, leading to insufficient operational experience, increased production costs, and negatively impacting economic benefits.

Method used

A blast furnace material distributor with alternating feeding capability was designed. By shaking the feeding assembly and replacing the feeding assembly, uniform material distribution and alternating conveying are achieved. The shaking rod and baffle plate are used to achieve uniform material distribution and alternating feeding, which improves the material addition ratio and the ability to adjust the feeding structure.

Benefits of technology

The addition ratio of limonite powder was increased to 35%, which reduced the cost per ton of iron, ensured the long-term stable operation of the blast furnace, reduced production costs, and improved the economic benefits of the enterprise.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of material distributors, and discloses a blast furnace material distributor capable of alternately feeding materials. The blast furnace material distributor capable of achieving alternate feeding comprises a base connecting assembly, a shaking material distributing assembly is installed at the upper end of the base connecting assembly, a protection plate is installed at the upper end of the shaking material distributing assembly, a connecting frame is installed at the lower end of the protection plate, and a fixing plate is installed at the upper end of the connecting frame; the inner side of the fixing plate is connected with a shaking rod, the upper end of the shaking distribution assembly is connected with a replacement feeding assembly, the upper end of the replacement feeding assembly is provided with a structural plate, the upper end of the structural plate is provided with a moving groove, and the inner side of the moving groove is provided with a pushing rod. At present, the sintering performance and the metallurgical value are greatly different, and the influence on blast furnace smelting is different, so that the subsequent large-proportion limonite powder sinter is insufficient in use and operation experience, and the subsequent production cost is higher.
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Description

Technical Field

[0001] This utility model relates to the field of material distributor technology, specifically a blast furnace material distributor with alternating feeding capability. Background Technology

[0002] The blast furnace is the main body of the blast furnace ironmaking process. Iron ore, fuel and solvent are charged from the top of the furnace body, and air is blown in from the bottom to burn the fuel. A large amount of high-temperature reducing gas is generated and moves upward. During the process of descending, the furnace charge undergoes a series of physical and chemical processes such as heating, reduction, melting and slag formation, and finally produces liquid slag and pig iron.

[0003] The existing Chinese utility model patent with announcement number CN111349734A discloses a blast furnace charging device with a movable feeding port. It includes a charging device mounted on top of the blast furnace, a top-down feeding cone inside the main body of the charging device, a bottom of the feeding cone connected to the upper port of the feeding pipe via an upper joint bearing, and a lower port of the feeding pipe connected to a transverse drive mechanism via a lower joint bearing. The transverse drive mechanism is mounted on a transverse drive frame, which is connected to a longitudinal drive mechanism. The longitudinal drive mechanism is mounted on a longitudinal drive frame, which is connected to a vertical drive mechanism. The vertical drive mechanism is mounted on a vertical drive frame, which is mounted on the main body of the charging device. A vertical drive direction sensor is mounted on the vertical drive mechanism. Material is fed from the upper end of the main body of the charging device through the feeding cone and the feeding pipe, and then into the blast furnace through the feeding port at the lower end of the feeding pipe. The feeding amount can be controlled by setting the feeding time, thus forming a 3D-printed feeding layout.

[0004] Based on the above patent searches and the findings of existing equipment, it is known that blast furnace operation requires precise material placement. Blast furnaces require the use of limonite powder. However, due to the wide variety of limonite powders with significant differences in sintering properties and metallurgical value, their impact on blast furnace smelting varies. This leads to a lack of operational experience in using large proportions of limonite powder sintered ore, resulting in higher subsequent production costs and impacting the economic benefits of enterprises. All these issues affect the use of the equipment. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a blast furnace material distributor that can be alternately fed. This effectively prevents the high production costs caused by insufficient operational experience in using large proportions of limonite powder sinter due to the wide variety of limonite powder types, their significant differences in sintering performance and metallurgical value, and their varying impacts on blast furnace smelting.

[0007] Technical solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: a blast furnace material distributor with alternating feeding capability, comprising a base connecting assembly, wherein a shaking feeding assembly is installed at the upper end of the base connecting assembly to facilitate the conveying and feeding of materials and to facilitate the subsequent shaking of the upper conveyor belt by a shaking rod at the lower end; and a replacement feeding assembly is connected at the upper end of the shaking feeding assembly to facilitate the placement of different materials and to facilitate the subsequent alternating feeding of different materials.

[0009] The upper end of the shaking fabric assembly is equipped with a protective plate, the lower end of the protective plate is equipped with a connecting frame, the upper end of the connecting frame is equipped with a fixing plate, and the inner side of the fixing plate is connected to a shaking rod. The fixing plate and the shaking rod are used together to facilitate the subsequent left and right shaking of the conveyor belt and facilitate the subsequent fabrication of materials.

[0010] The upper end of the replacement feeding assembly is equipped with a structural plate, the upper end of the structural plate is equipped with a moving groove, the inner side of the moving groove is equipped with a push rod, the upper end of the push rod is equipped with a baffle plate, and the baffle plate is installed at the lower end of the material trough to facilitate the alternating blocking of the lower ends of the first material trough and the second material trough in the future.

[0011] As a preferred technical solution of this utility model, the upper end of the base connecting assembly is equipped with a mounting bracket, the upper end of the mounting bracket is equipped with a first bracket, the front end of the first bracket is equipped with a sliding groove, the upper end of the sliding groove is equipped with a second bracket, and the second bracket is installed inside the sliding groove to facilitate the subsequent support of the front end of the upper protective plate.

[0012] As a preferred embodiment of this utility model, the upper end of the shaking fabric assembly is equipped with a rotating shaft, and the outer end of the rotating shaft is equipped with a conveyor belt. The second bracket is installed inside the sliding groove to facilitate subsequent support of the front end of the upper protective plate.

[0013] As a preferred embodiment of this utility model, a first material trough is installed at the upper end of the replacement feeding component, and a second material trough is installed on the right side of the first material trough. The first material trough and the second material trough are used to place and store different materials.

[0014] As a preferred embodiment of this utility model, the vibrating fabric assembly is installed on the upper end of the second bracket in the base connecting assembly, and the replacement feeding assembly is installed on the upper end of the conveyor belt in the vibrating fabric assembly.

[0015] As a preferred embodiment of this utility model, the first support and the second support have the same structure, the upper end of the first support is an inclined structure, and the second support is a sliding structure.

[0016] As a preferred embodiment of this utility model, the protective plate is installed on the upper end of the first bracket and the second bracket, the connecting frame is connected to the sliding groove, and the conveyor belt has an inclined structure.

[0017] As a preferred embodiment of this utility model, the first material trough and the second material trough have the same structure, the lower outlet of the first material trough is inclined inward, the structural plate is installed on both sides of the protective plate, and the shielding plate is installed at the lower end of the second material trough.

[0018] Compared with the prior art, the present invention provides a blast furnace material distributor with alternating feeding capabilities, which has the following advantages:

[0019] 1. This utility model, through the design of the overall device, includes a rotating shaft installed in the shaking and fabric distribution assembly. The rotating shaft is connected to the upper conveyor belt for use, facilitating subsequent material conveying. Protective plates are installed on both sides of the conveyor belt, with fixed plates connected to the lower ends of the protective plates. A shaking rod is inserted through the inner side of the fixed plate, causing the upper protective plates to shake, thus facilitating the even distribution of material on the upper part of the conveyor belt. The upper end of the conveyor belt is connected to a first and a second material trough, through which different materials are placed and stored. A structural plate is installed at the lower end of the material trough, which supports the internal pushing mechanism. The rods are connected to facilitate the subsequent movement of the upper baffle plate, which blocks the outlets at the lower ends of the first and second material troughs, allowing for alternating material transport. This structure increases the proportion of limonite powder added to sintered ore by 35%, adjusts the material distribution structure, and reduces the cost per ton of iron while maintaining the long-term stable operation of the blast furnace. This effectively prevents the situation where the variety of limonite powders, their sintering performance and metallurgical value vary, and their impact on blast furnace smelting differs, leading to insufficient operational experience in using large proportions of limonite powder sintered ore, resulting in higher subsequent production costs and impacting the economic benefits of the enterprise. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structural base connection assembly of this utility model;

[0022] Figure 3 This is a schematic diagram of the shaking fabric assembly of this utility model;

[0023] Figure 4 This is a schematic diagram of the replacement feeding assembly of the present invention.

[0024] The components include: 1. Base connecting assembly; 101. Mounting frame; 102. First bracket; 103. Sliding groove; 104. Second bracket; 2. Shaking fabric assembly; 201. Rotating shaft; 202. Conveyor belt; 203. Protective plate; 204. Connecting frame; 205. Fixing plate; 206. Shaking rod; 3. Replacement feeding assembly; 301. First trough; 302. Second trough; 303. Structural plate; 304. Moving groove; 305. Push rod; 306. Baffle plate. Detailed Implementation

[0025] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0026] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Please see Figure 1 - Figure 4 In this embodiment, a blast furnace material distributor capable of alternating feeding includes: a base connecting assembly 1, a shaking material distribution assembly 2 installed at the upper end of the base connecting assembly 1, a protective plate 203 installed at the upper end of the shaking material distribution assembly 2, a connecting frame 204 installed at the lower end of the protective plate 203, a fixing plate 205 installed at the upper end of the connecting frame 204, a shaking rod 206 connected to the inner side of the fixing plate 205, a replacement feeding assembly 3 connected to the upper end of the shaking material distribution assembly 2, a structural plate 303 installed at the upper end of the replacement feeding assembly 3, a moving groove 304 installed at the upper end of the structural plate 303, a pushing rod 305 installed on the inner side of the moving groove 304, and a baffle plate 306 installed at the upper end of the pushing rod 305.

[0029] With the above structure: the base connecting component 1 facilitates the installation and connection of the upper components, making it convenient for subsequent use; the shaking cloth component 2 facilitates the conveying of materials and allows the upper conveyor belt 202 to be shaken by the lower shaking rod 206; the replacement feeding component 3 facilitates the placement of different materials and allows for the alternating feeding of different materials.

[0030] Please see Figure 1 - Figure 4 The upper end of the base connecting assembly 1 is equipped with a mounting bracket 101, and the upper end of the mounting bracket 101 is equipped with a first bracket 102. The front end of the first bracket 102 is equipped with a sliding groove 103, and the upper end of the sliding groove 103 is equipped with a second bracket 104. The first bracket 102 and the second bracket 104 have the same structure. The upper end of the first bracket 102 is an inclined structure, and the second bracket 104 is a sliding structure.

[0031] With the above structure: the first bracket 102 at the upper end is connected by installing the mounting bracket 101, and the first bracket 102 is fixed to support the lower end of the upper protective plate 203. The sliding groove 103 is installed at the front end of the mounting bracket 101 to facilitate the subsequent connection of the internal second bracket 104. The second bracket 104 is installed inside the sliding groove 103 to facilitate the subsequent support of the front end of the upper protective plate 203.

[0032] Please see Figure 1 - Figure 4 The upper end of the shaking fabric assembly 2 is equipped with a rotating shaft 201, and the outer end of the rotating shaft 201 is equipped with a conveyor belt 202. The protective plate 203 is installed on the upper end of the first support 102 and the second support 104. The connecting frame 204 is connected to the sliding groove 103. The conveyor belt 202 has an inclined structure.

[0033] With the above structure: the outer conveyor belt 202 is driven to rotate by the installation of the rotating shaft 201, which facilitates subsequent use. The conveyor belt 202 is installed on the upper end of the rotating shaft 201 to facilitate the subsequent conveying of materials. The protective plate 203 is installed on both sides of the conveyor belt 202 to prevent materials from falling during subsequent conveying. The connecting frame 204 is installed on the lower end of the protective plate 203 to facilitate the subsequent connection of the upper structure with the sliding groove 103. The fixed plate 205 is used in conjunction with the shaking rod 206 to facilitate the subsequent left and right shaking of the conveyor belt 202, which facilitates the subsequent distribution of materials.

[0034] Please see Figure 1 - Figure 4The upper end of the replacement feeding assembly 3 is equipped with a first material trough 301, and a second material trough 302 is installed on the right side of the first material trough 301. The first material trough 301 and the second material trough 302 have the same structure. The lower end outlet of the first material trough 301 is inclined inward. The structural plate 303 is installed on both sides of the protective plate 203, and the baffle plate 306 is installed at the lower end of the second material trough 302.

[0035] With the above structure: different materials are placed and stored by installing the first material trough 301 and the second material trough 302 for easy use later. The structural plate 303 is installed on both sides of the protective plate 203 to facilitate the subsequent fixed installation of the upper structure. The movable groove 304 is installed on both sides of the structural plate 303 to facilitate the subsequent connection of the shielding plate 306. The push rod 305 is installed inside the structural plate 303 to facilitate the subsequent pushing of the shielding plate 306. The shielding plate 306 is installed at the lower end of the material trough to facilitate the alternating shielding of the lower ends of the first material trough 301 and the second material trough 302.

[0036] In use, different materials are first poured into the first trough 301 and the second trough 302 respectively. A baffle plate 306 is installed at the lower end of the first trough 301 and the second trough 302. A push rod 305 is installed on the side of the baffle plate 306. The push rod 305 moves the baffle plate 306, alternately blocking the lower ends of the first trough 301 and the second trough 302, facilitating the subsequent alternating conveying of materials. When materials fall, they land on the upper end of the lower conveyor belt 202. A rotating shaft 201 is installed inside the conveyor belt 202, which rotates the conveyor belt 202, facilitating the subsequent conveying of materials from the upper end. Material is conveyed. Protective plates 203 are installed on both sides of the conveyor belt 202. A fixing plate 205 is installed at the lower end of the protective plate 203. A shaking rod 206 is inserted and connected to the inner side of the fixing plate 205. The shaking rod 206 drives the upper conveyor belt 202 to shake left and right, which facilitates the uniform distribution of material on the upper end of the conveyor belt 202. A connecting frame 204 is connected to the lower end of the shaking rod 206. The connecting frame 204 is connected to the sliding groove 103, which facilitates the connection and fixation of the upper shaking rod 206. A second bracket 104 is installed at the upper end of the sliding groove 103. The upper structure is connected by the first bracket 102 and the second bracket 104.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A blast furnace material distributor capable of alternating feeding, characterized in that, The device includes a base connecting assembly (1), a shaking fabric assembly (2) is mounted on the upper end of the base connecting assembly (1), a protective plate (203) is mounted on the upper end of the shaking fabric assembly (2), a connecting frame (204) is mounted on the lower end of the protective plate (203), a fixing plate (205) is mounted on the upper end of the connecting frame (204), a shaking rod (206) is connected to the inner side of the fixing plate (205), a replacement feeding assembly (3) is connected to the upper end of the shaking fabric assembly (2), a structural plate (303) is mounted on the upper end of the replacement feeding assembly (3), a moving groove (304) is mounted on the upper end of the structural plate (303), a pushing rod (305) is mounted on the inner side of the moving groove (304), and a shielding plate (306) is mounted on the upper end of the pushing rod (305).

2. The blast furnace material distributor with alternating feeding capability according to claim 1, characterized in that, The upper end of the base connecting assembly (1) is equipped with a mounting bracket (101), and the upper end of the mounting bracket (101) is equipped with a first bracket (102), and the front end of the first bracket (102) is equipped with a sliding groove (103), and the upper end of the sliding groove (103) is equipped with a second bracket (104).

3. A blast furnace material distributor with alternating feeding capability according to claim 1, characterized in that, The upper end of the shaking fabric assembly (2) is equipped with a rotating shaft (201), and the outer end of the rotating shaft (201) is equipped with a conveyor belt (202).

4. A blast furnace material distributor with alternating feeding capability according to claim 1, characterized in that, The upper end of the replacement feeding assembly (3) is equipped with a first material trough (301), and a second material trough (302) is installed on the right side of the first material trough (301).

5. A blast furnace material distributor with alternating feeding capability according to claim 1, characterized in that, The vibrating fabric assembly (2) is installed on the upper end of the second bracket (104) in the base connection assembly (1), and the replacement feed assembly (3) is installed on the upper end of the conveyor belt (202) in the vibrating fabric assembly (2).

6. A blast furnace material distributor with alternating feeding capability according to claim 2, characterized in that, The first support (102) and the second support (104) have the same structure. The upper end of the first support (102) is an inclined structure, and the second support (104) is a sliding structure.

7. A blast furnace material distributor with alternating feeding capability according to claim 3, characterized in that, The protective plate (203) is installed on the upper end of the first bracket (102) and the second bracket (104), the connecting frame (204) is connected to the sliding groove (103), and the conveyor belt (202) is an inclined structure.

8. A blast furnace material distributor with alternating feeding capability according to claim 4, characterized in that, The first material trough (301) and the second material trough (302) have the same structure. The lower end outlet of the first material trough (301) is inclined inward. The structural plate (303) is installed on both sides of the protective plate (203), and the shielding plate (306) is installed at the lower end of the second material trough (302).

Citation Information

Patent Citations

  • Blast furnace distributing device with movable feeding port

    CN111349734A