Blast furnace car expansion structure

Abstract

The utility model provides a kind of blast furnace car expansion structure, it is related to blast furnace car field, including, main component, including lower frame, the pulley of being set in the lower frame bottom two sides front end and rear end, the upper frame of being set in the lower frame top, the extension frame of being fixedly connected in the lower frame top, and the connecting groove of being opened in the lower frame top;Lifting assembly, including connecting box, the hydraulic cylinder of being fixedly connected in the connecting box inner chamber bottom;The utility model is connected by the extension frame of being fixedly connected in the main component upper frame bottom and the connecting groove of being opened in the lower frame top sliding, this design makes the upper frame can move relative to lower frame, and by hydraulic cylinder can accurately control the rising and falling height of movable plate, to accurately adjust the position of upper frame, realize the accurate expansion of the volume of car, by can satisfy the accurate demand of material quantity under different production conditions, improve the stability and controllability of production process.

Description

Technical Field

[0001] This utility model belongs to the field of blast furnace charging cars, specifically a blast furnace charging car expansion structure. Background Technology

[0002] Blast furnace ironmaking is a key link in modern steel production. Its core lies in reducing iron ore into pig iron through high temperature. In this process, the continuous and stable supply of materials is crucial. As the core equipment of the blast furnace charging system, the blast furnace charging car undertakes the key task of transporting raw materials such as sinter, pellets, and coke from the ore bin to the top of the blast furnace.

[0003] In the existing technology, when using a blast furnace charging car, the car is parked below the ore bin, and the mixed furnace charge is loaded into the car body by a feeder. The amount of charge loaded is determined by the capacity of the charging car, and a quantitative loading method is usually adopted. Then, the charging car is lifted to the top of the blast furnace along the track. After the charging car reaches the top of the furnace, the material can be poured into the blast furnace receiving hopper by tilting the car body, thereby realizing the feeding of the blast furnace.

[0004] However, the existing charging car volume is fixed in the design and it is difficult to expand and adjust it according to actual needs. When the blast furnace needs more material, the charging car capacity is insufficient. In order to make up for it, the charging car needs to run faster, and the blast furnace needs to frequently interrupt operation to wait for charging. This not only causes temperature fluctuations in the furnace and affects the stability of the reduction reaction, but also greatly increases the wear rate of the charging car, increasing the number of maintenance times and time.

[0005] In summary, this utility model provides a blast furnace charge car expansion structure to solve the above problems. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A blast furnace charge car expansion structure, comprising, The main components include a lower frame, pulleys disposed at the front and rear ends of both sides of the bottom of the lower frame, an upper frame disposed at the top of the lower frame, an extension frame fixedly connected to the bottom of the upper frame, and a connecting groove formed at the top of the lower frame. The lifting assembly includes a connecting box, a hydraulic cylinder fixedly connected to the bottom of the inner cavity of the connecting box, a movable plate fixedly connected to the output end of the hydraulic cylinder, and a connecting plate fixedly connected to one side of the movable plate and fixedly connected to the upper frame.

[0007] Furthermore, in this utility model, a sealing strip is fixedly connected to the top of the lower frame, the extension frame is located in the inner cavity of the connecting groove and is slidably connected to the inner cavity of the connecting groove, and the sealing strip is in contact with the extension frame.

[0008] Furthermore, in this utility model, a traction frame is movably connected to the surface of the lower frame via a pivot, and a lifting ring is fixedly connected to one side of the traction frame.

[0009] Furthermore, in this utility model, both sides of the movable plate are fixedly connected to limit plates, and both sides of the inner cavity of the connecting box are provided with limit grooves. One end of the limit plate extends into the inner cavity of the limit groove and is slidably connected to the inner cavity of the limit groove.

[0010] Furthermore, in this utility model, a through groove is provided on one side of the inner cavity of the connecting box, the connecting plate passes through the inner cavity of the through groove and is slidably connected to the inner cavity of the through groove, and the connecting box is fixedly connected to the lower frame.

[0011] Beneficial effects: This utility model has the following beneficial effects: This utility model features a sliding connection between an extension frame fixedly connected to the bottom of the upper frame and a connecting groove opened at the top of the lower frame in the main component. This design allows the upper frame to move relative to the lower frame, and the rising and falling height of the movable plate can be precisely controlled by a hydraulic cylinder, thereby accurately adjusting the position of the upper frame and achieving precise expansion of the material car volume. This precise control can meet the precise requirements for material quantity under different production conditions, improving the stability and controllability of the production process. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the lower frame structure of this utility model; Figure 3 This is a schematic diagram of the upper frame structure of this utility model; Figure 4 This is a cross-sectional structural diagram of the connector box of this utility model.

[0013] In the picture: 100. Main component; 110. Lower frame; 111. Sealing strip; 112. Towing frame; 113. Lifting ring; 120. Pulley; 130. Upper frame; 140. Extension frame; 150. Connecting groove; 200. Lifting assembly; 210. Connecting box; 211. Through groove; 212. Limiting groove; 220. Hydraulic cylinder; 230. Movable plate; 231. Limiting plate; 240. Connecting plate. Detailed Implementation

[0014] To better understand the technical content of this utility model, specific embodiments are described below in conjunction with the accompanying drawings. Various aspects of this utility model are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. The embodiments of this disclosure are not necessarily defined to include all aspects of this utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in this utility model are not limited to any particular implementation. Furthermore, some aspects of this utility model can be used alone or in any suitable combination with other aspects disclosed in this utility model.

[0015] Example 1 like Figure 1-4 As shown, this is the first embodiment of the present invention, which provides a blast furnace charge car expansion structure, including, The main component 100 includes a lower frame 110, pulleys 120 disposed on the front and rear ends of both sides of the bottom of the lower frame 110, an upper frame 130 disposed on the top of the lower frame 110, an extension frame 140 fixedly connected to the bottom of the upper frame 130, and a connecting groove 150 opened on the top of the lower frame 110. The lifting assembly 200 includes a connecting box 210, a hydraulic cylinder 220 fixedly connected to the bottom of the inner cavity of the connecting box 210, a movable plate 230 fixedly connected to the output end of the hydraulic cylinder 220, and a connecting plate 240 fixedly connected to one side of the movable plate 230 and fixedly connected to the upper frame 130.

[0016] like Figure 1-4 As shown, in the main component 100, the extension frame 140 fixedly connected to the bottom of the upper frame 130 is slidably connected to the connecting groove 150 opened on the top of the lower frame 110. This design allows the upper frame 130 to move relative to the lower frame 110, thereby facilitating the change of the overall volume of the material cart. The hydraulic cylinder 220 in the lifting component 200 is fixedly connected to the bottom of the inner cavity of the connecting box 210. The movable plate 230 connected to its output end is fixedly connected to the upper frame 130 through the connecting plate 240. The hydraulic cylinder 220 can precisely control the rising and falling height of the movable plate 230, thereby accurately adjusting the position of the upper frame 130 and realizing the precise expansion of the material cart volume. This precise control can meet the precise requirements for the amount of material under different production conditions, and improve the stability and controllability of the production process.

[0017] Example 2 Reference Figure 1-3 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0018] In this embodiment, a sealing strip 111 is fixedly connected to the top of the lower frame 110, and the extension frame 140 is located in the inner cavity of the connecting groove 150 and is slidably connected to the inner cavity of the connecting groove 150. The sealing strip 111 and the extension frame 140 are in contact.

[0019] A towing frame 112 is movably connected to the surface of the underframe 110 via a pivot, and a lifting ring 113 is fixedly connected to one side of the towing frame 112.

[0020] like Figure 1-3 As shown, the sealing strip 111, which is fixedly connected to the top of the lower frame 110, is in close contact with the extension frame 140. When the extension frame 140 slides in the connecting groove 150, the sealing strip 111 is elastically deformed by the pressure of the extension frame 140, tightly adhering to the surface of the extension frame 140, thereby forming a sealing effect. This effectively prevents the material in the trolley from leaking from the connection between the extension frame 140 and the lower frame 110, and also prevents the material from entering the inner cavity of the connecting groove 150, which could obstruct the movement of the extension frame 140. The traction frame 112, which is movably connected to the surface of the lower frame 110 via a rotating shaft, and one side of the traction frame 112... The fixed-connection lifting ring 113 provides a convenient connection point for the traction of the material car. When it is necessary to transport the material car from the ore bin to the top of the blast furnace or move it to other locations, the lifting ring 113 can be connected to traction equipment such as a winch or electric hoist to achieve stable traction of the material car. When the material car is tractioned by connecting the lifting ring 113 to the traction equipment, the traction force generated by the traction equipment is transmitted to the traction frame 112 through the lifting ring 113. Since the traction frame 112 is movably connected to the lower frame 110 through the rotating shaft, the traction force will be evenly transmitted to the lower frame 110 through the traction frame 112, thereby driving the entire material car to move.

[0021] Example 3 Reference Figure 1 , 3 4 and 5 are the third embodiment of this utility model, which is based on the first two embodiments.

[0022] In this embodiment, both sides of the movable plate 230 are fixedly connected to the limiting plate 231, and both sides of the inner cavity of the connecting box 210 are provided with limiting grooves 212. One end of the limiting plate 231 extends into the inner cavity of the limiting groove 212 and is slidably connected to the inner cavity of the limiting groove 212.

[0023] A through groove 211 is provided on one side of the inner cavity of the connecting box 210. The connecting plate 240 passes through the inner cavity of the through groove 211 and is slidably connected to the inner cavity of the through groove 211. The connecting box 210 is fixedly connected to the lower frame 110.

[0024] like Figure 1 , 3As shown in Figure 4, the limiting plates 231, which are fixedly connected to both sides of the movable plate 230, extend into the limiting grooves 212 on both sides of the inner cavity of the connecting box 210 and are slidably connected. This design provides precise guidance for the movement of the movable plate 230. When the hydraulic cylinder 220 drives the movable plate 230 to move up and down, the sliding of the limiting plates 231 in the limiting grooves 212 ensures that the movable plate 230 always moves along the predetermined vertical direction without deviation or shaking, thereby ensuring the stability and reliability of the lifting assembly 200. The connecting plate 240 passes through the through groove 211 on one side of the inner cavity of the connecting box 210 and is slidably connected, so that the force applied by the hydraulic cylinder 220 to the connecting plate 240 through the movable plate 230 can be accurately transmitted to the upper frame 130. The connecting plate 240 can slide smoothly in the through groove 211. This precise force transmission ensures that the upper frame 130 is raised and lowered in the expected manner and amplitude, thereby achieving precise adjustment of the material car volume.

[0025] In use, first determine the required loading amount of the charging car based on the production needs of the blast furnace. If it is necessary to increase the volume of the charging car, start the hydraulic cylinder 220. The output end of the hydraulic cylinder 220 pushes the movable plate 230 upward. The limiting plates 231 on both sides of the movable plate 230 slide upward in the limiting groove 212 to ensure the accurate movement direction of the movable plate 230. At the same time, the movable plate 230 drives the upper frame 130 to move upward through the connecting plate 240. The upper frame 130 drives the extension frame 140 to slide along the connecting groove 150. During the movement, the sealing strip 111 always keeps in contact with the extension frame 140 to ensure that the material does not leak during the volume adjustment process. The material leaks into the connecting groove 150 to ensure the smooth sliding of the extension frame 140. The extension frame 140 compensates for the gap between the upper frame 130 and the lower frame 110, thereby expanding the volume of the material car and meeting the precise requirements for material quantity under different production conditions. This improves the stability and controllability of the production process. When the material car needs to be moved, the hook of the traction device is connected to the lifting ring 113 on the traction frame 112. The traction device applies a pulling force, which is transmitted to the main component 100 through the lifting ring 113 and the traction frame 112, allowing it to move along the track until it is lifted to the top of the blast furnace, thus completing the feeding and realizing the transportation of materials.

[0026] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0027] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. A blast furnace charge car expansion structure, characterized in that: include, The main body component (100) includes a lower frame (110), pulleys (120) disposed on the front and rear ends of both sides of the bottom of the lower frame (110), an upper frame (130) disposed on the top of the lower frame (110), an extension frame (140) fixedly connected to the bottom of the upper frame (130), and a connecting groove (150) opened on the top of the lower frame (110). The lifting assembly (200) includes a connecting box (210), a hydraulic cylinder (220) fixedly connected to the bottom of the inner cavity of the connecting box (210), a movable plate (230) fixedly connected to the output end of the hydraulic cylinder (220), and a connecting plate (240) fixedly connected to one side of the movable plate (230) and fixedly connected to the upper frame (130).

2. The blast furnace charge car expansion structure as described in claim 1, characterized in that: A sealing strip (111) is fixedly connected to the top of the lower frame (110). The extension frame (140) is located in the inner cavity of the connecting groove (150) and is slidably connected to the inner cavity of the connecting groove (150). The sealing strip (111) is in contact with the extension frame (140).

3. The blast furnace charge car expansion structure as described in claim 1, characterized in that: The surface of the lower frame (110) is movably connected to a traction frame (112) via a pivot, and a lifting ring (113) is fixedly connected to one side of the traction frame (112).

4. The blast furnace charge car expansion structure as described in claim 1, characterized in that: Both sides of the movable plate (230) are fixedly connected to the limiting plate (231), and both sides of the inner cavity of the connecting box (210) are provided with limiting grooves (212). One end of the limiting plate (231) extends into the inner cavity of the limiting groove (212) and is slidably connected to the inner cavity of the limiting groove (212).

5. The blast furnace charge car expansion structure as described in claim 1, characterized in that: A through groove (211) is provided on one side of the inner cavity of the connecting box (210). The connecting plate (240) passes through the inner cavity of the through groove (211) and is slidably connected to the inner cavity of the through groove (211). The connecting box (210) is fixedly connected to the lower frame (110).

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