Feeding mechanism suitable for injecting pulverized coal

Abstract

The utility model relates to the technical field of pulverized coal, in particular to a feeding mechanism suitable for injecting pulverized coal, and solves the problems that in the prior art, in the storage process of the pulverized coal, due to the influence of factors such as environment humidity and temperature, the phenomena of moisture and caking are prone to occurring, and in the conveying process of the moist and caking pulverized coal, a pipeline is extremely prone to being blocked, and the conveying efficiency is high. And the normal work of the blast furnace is directly influenced due to the fact that conveying cannot be carried out under severe conditions. A feeding mechanism suitable for injecting pulverized coal comprises a base, the top of the base is fixedly connected with a frame, the bottom of the frame is communicated with an injection tank, and a discharge port of the injection tank is communicated with a coal injection gun. According to the utility model, double stirring of pulverized coal is realized. The stirring mechanism not only improves the looseness of the pulverized coal, but also effectively prevents the pulverized coal from caking or being moist due to long-time standing, solves the problems that the pulverized coal in an existing feeding mechanism is prone to caking and blocking a pipeline, and improves the feeding efficiency and stability.

Description

Technical Field

[0001] This utility model relates to the field of pulverized coal technology, and in particular to a feeding mechanism suitable for pulverized coal injection. Background Technology

[0002] Pulverized coal, as a crucial raw material in blast furnace smelting, significantly improves combustion efficiency, reduces energy consumption, and decreases pollutant emissions by grinding coal into a fine powder. Therefore, pulverized coal injection technology has become an indispensable part of modern blast furnace ironmaking, playing a vital role in improving smelting efficiency and reducing production costs. In numerous industries such as air-raid shelters and steel manufacturing, the pulverized coal injection charging mechanism is a key component, and its performance and quality have a decisive impact on the normal operation and production efficiency of the blast furnace.

[0003] Especially in the process of feeding pulverized coal, this core link is crucial to ensuring the continuous and stable transport of pulverized coal. However, existing feeding mechanisms have gradually revealed a series of obvious limitations and technical problems when handling pulverized coal.

[0004] Specifically, during storage, pulverized coal is prone to becoming damp and clumping due to factors such as environmental humidity and temperature. This dampness and clumping can easily cause pipe blockages during transport, sometimes even preventing transport altogether and directly impacting the normal operation of the blast furnace. These problems not only significantly reduce charging efficiency and increase operational complexity, but also make it difficult to meet the demands of continuous and stable blast furnace production. More seriously, pulverized coal blockages can pose potential risks to the overall operational safety and stability of the blast furnace, increasing production costs and maintenance difficulty, causing considerable inconvenience. Therefore, there is an urgent need for a charging mechanism suitable for pulverized coal injection to solve these problems. Utility Model Content

[0005] The purpose of this invention is to provide a feeding mechanism suitable for pulverized coal injection, which solves the problem that pulverized coal is prone to becoming damp and clumping during storage due to environmental humidity, temperature and other factors. Damp and clumped pulverized coal can easily cause pipe blockage during transportation, and in severe cases, it may even prevent transportation, directly affecting the normal operation of the blast furnace.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A feeding mechanism for pulverized coal injection includes a base, with a frame fixedly connected to the top of the base. A pulverized coal injection tank is connected to the bottom of the frame, and a pulverized coal injection gun is connected to the outlet of the pulverized coal injection tank. A drive motor is fixedly connected to one side of the outer wall of the frame by bolts, and a rotating rod is rotatably connected to the lower side of the frame. A stirring rod is rotatably connected to the upper inner side of the frame, and one end of the stirring rod is connected to one end of the rotating rod by a belt. One end of the rotating rod passes through the side wall of the frame and is connected to the output shaft of the drive motor. Several agitator plates are fixedly connected to the rotating rod. An electric heating plate is fixedly connected to one side of the outer wall of the frame, and heat-conducting plates are fixedly connected to the upper and lower inner walls of the electric heating plate. One end of the rotating rod and one end of the stirring rod both pass through the side wall of the frame, and one end of the rotating rod and one end of the stirring rod are rotatably connected to one side of each of the two heat-conducting plates via a rotating shaft.

[0008] Preferably, pulleys are fitted onto one end of the rotating rod and one end of the stirring rod, and the two pulleys are connected by a belt winding around each other.

[0009] Preferably, the bottom of the blow tank is fixedly connected to the top of the base by bolts, and a regulating valve is connected to the top inlet of the blow tank, and the inlet of the regulating valve is connected to the bottom of the frame.

[0010] Preferably, several heat-conducting rods are fixedly connected to both sides of the electric heating plate, and one end of all the heat-conducting rods penetrates through the side wall of the frame, and the extension of all the heat-conducting rods is located inside the frame.

[0011] Preferably, the top of the frame is connected to a top cover via a hinge.

[0012] Preferably, both ends of the rotating rod and both ends of the stirring rod pass through both sides of the frame via bearing sleeves, and the rotating rod, stirring rod, and stirring plate are all made of metal heat-conducting material.

[0013] This utility model has the following beneficial effects:

[0014] First, the rotation of the rotating rod and stirring rod, driven by a drive motor, achieves dual stirring of the pulverized coal. This stirring mechanism not only improves the looseness of the pulverized coal but also effectively prevents it from clumping or becoming damp due to prolonged standing. This solves the problem of pulverized coal clumping and pipe blockage in existing feeding mechanisms, improving feeding efficiency and stability. Second, the design of the electric heating plate and heat-conducting plate provides appropriate heating for the pulverized coal within the frame. This heating further reduces the moisture content of the pulverized coal and improves its fluidity. This helps prevent the pulverized coal from clumping or blocking pipes due to excessive moisture during transportation, ensuring continuous and stable pulverized coal transport. Furthermore, the feeding mechanism has a reasonable structural design and is easy to operate. The coordinated use of components such as the drive motor, rotating rod, stirring rod, and electric heating plate makes the entire feeding process highly automated, reducing operational complexity. At the same time, this mechanism also has good adaptability and reliability, meeting the injection requirements of different blast furnaces and providing strong support for blast furnace smelting. This invention effectively solves the problems of coal powder clumping and pipe blockage in existing feeding mechanisms through a dual stirring mechanism, appropriate heating, and reasonable structural design, thereby improving feeding efficiency and stability. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall main structure of this utility model;

[0017] Figure 2 This is a side view of the structure of this utility model;

[0018] Figure 3 This is a top view of the structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the cooperation structure between the stirring rod and the rotating rod of this utility model;

[0020] Figure 5 This is a schematic diagram of the electric heating plate and its structure according to the present invention.

[0021] In the diagram: 1. Base; 2. Frame; 3. Pulverized coal injection tank; 4. Pulverized coal injection gun; 5. Regulating valve; 6. Electric heating plate; 7. Heat-conducting rod; 8. Heat-conducting plate; 9. Top cover; 10. Drive motor; 11. Pulley; 12. Belt; 13. Stirring rod; 14. Rotating rod; 15. Stirring plate. 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] Reference Figure 1-5 A feeding mechanism for pulverized coal injection includes a base 1, with a frame 2 fixedly connected to the top of the base 1. A pulverized coal injection tank 3 is connected to the bottom of the frame 2, and a pulverized coal injection gun 4 is connected to the outlet of the pulverized coal injection tank 3. A drive motor 10 is bolted to one side of the outer wall of the frame 2, and a rotating rod 14 is rotatably connected to the lower side of the frame 2. A stirring rod 13 is rotatably connected to the upper inner side of the frame 2, with one end of the stirring rod 13 and one end of the rotating rod 14 wound together by a belt 12. One end of the rotating rod 14 passes through the side wall of the frame 2 and is connected to the output shaft of the drive motor 10. The rotating rod 14 rotates under the drive of the drive motor 10, and through several stirring plates 15 fixedly connected to it, it stirs and agitates the pulverized coal inside the frame 2, effectively preventing the pulverized coal from clumping or... The frame 2 is humid. Several stirring plates 15 are fixedly connected to the rotating rod 14. An electric heating plate 6 is fixedly connected to one side of the outer wall of the frame 2. A heat-conducting plate 8 is fixedly connected to the upper and lower sides of the inner wall of the electric heating plate 6. One end of the rotating rod 14 and one end of the stirring rod 13 both penetrate the side wall of the frame 2. One end of the rotating rod 14 and one end of the stirring rod 13 are rotatably connected to one side of the two heat-conducting plates 8 respectively through a rotating shaft. The electric heating plate 6 serves as a heating element to provide heat to the coal powder in the frame 2. A heat-conducting plate 8 is fixedly connected to the upper and lower sides of the inner wall of the electric heating plate 6. The heat-conducting plate 8 transfers the heat generated by the electric heating plate 6 to the rotating rod 14 and the stirring rod 13, thereby heating the coal powder in the frame 2, reducing the humidity of the coal powder, and improving its fluidity.

[0024] Furthermore, pulleys 11 are fitted onto one end of the rotating rod 14 and one end of the stirring rod 13, and the two pulleys 11 are connected by a belt 12. The power of the drive motor 10 is transmitted to the pulley 11 at one end of the rotating rod 14 through the pulley 11 at one end of the stirring rod 13, thereby driving the stirring rod 13 to rotate. This achieves a stable and efficient power transmission effect between the rotating rod 14 and the stirring rod 13, ensuring that the stirring rod 13 can rotate together with the rotating rod 14, enhancing the stirring effect of the coal powder, and improving the uniformity and flowability of the coal powder.

[0025] Furthermore, the bottom of the injection tank 3 is fixedly connected to the top of the base 1 by bolts. The top feed inlet of the injection tank 3 is connected to a regulating valve 5, and the inlet of the regulating valve 5 is connected to the bottom of the frame 2. According to the needs of blast furnace smelting, the flow rate of pulverized coal from the frame 2 into the injection tank 3 can be controlled by the regulating valve 5, which achieves the effect of flexibly adjusting the pulverized coal supply, ensuring the continuous and stable supply of pulverized coal during the blast furnace smelting process, and improving the adaptability and controllability of the charging mechanism.

[0026] Furthermore, several heat-conducting rods 7 are fixedly connected to both sides of the electric heating plate 6, and one end of all the heat-conducting rods 7 penetrates the side wall of the frame 2. The extensions of all the heat-conducting rods 7 are located inside the frame 2. The heat generated by the electric heating plate 6 is transferred to the coal powder inside the frame 2 through the heat-conducting rods 7, which enhances the heating effect of the coal powder, improves the heating efficiency of the coal powder, further reduces the humidity of the coal powder, improves its fluidity, and effectively prevents the coal powder from clumping and blocking.

[0027] Furthermore, the top of the frame 2 is connected to the top cover 9 by a hinge, which can be easily opened to add or clean the coal powder inside the frame 2. During the stirring process, opening the top cover 9 can evaporate the hot air, thereby improving the ease of operation of the feeding mechanism. This makes the process of adding and cleaning coal powder simpler and faster, and also helps to maintain and service the feeding mechanism.

[0028] Furthermore, both ends of the rotating rod 14 and both ends of the stirring rod 13 pass through the two sides of the frame 2 via bearing sleeves. The rotating rod 14, the stirring rod 13, and the stirring plate 15 are all made of metal heat-conducting material. The rotating rod 14 and the stirring rod 13 can rotate stably within the frame 2, and the metal heat-conducting material can better transfer heat to the coal powder.

[0029] In summary:

[0030] In the feeding mechanism suitable for pulverized coal injection, the entire system is based on a base 1, which firmly supports the upper frame 2. The bottom of the frame 2 is tightly connected to the injection tank 3 by bolts, and the outlet of the injection tank 3 is connected to the pulverized coal injection gun 4, ensuring smooth transmission and injection of pulverized coal from the frame 2 to the blast furnace. When feeding is required, the drive motor 10 starts working, and its output shaft transmits power through the pulley 11 at one end of the rotating rod 14. This power is further transmitted to the pulley 11 at one end of the stirring rod 13 through the winding connection of the belt 12, thereby driving the stirring rod 13 to rotate on the upper inner side of the frame 2. At the same time, the rotating rod 14 also rotates on the lower side of the frame 2, driving several agitator plates 15 fixedly connected to it to rotate together. This design achieves stable and efficient power transmission between the rotating rod 14 and the stirring rod 13, ensuring that the stirring rod 13 can rotate together with the rotating rod 14, enhancing the stirring effect of the pulverized coal, and improving the uniformity and flowability of the pulverized coal. During the stirring process, the coal powder inside the frame 2 is fully agitated and stirred by the stirring plate 15 and the stirring rod 13, effectively preventing the coal powder from clumping or becoming damp due to prolonged standing. Furthermore, an electric heating plate 6 is fixedly connected to one side of the outer wall of the frame 2, and heat-conducting plates 8 are fixedly connected to the upper and lower sides of the inner wall of the electric heating plate 6. One end of the rotating rod 14 and one end of the stirring rod 13 penetrate the side wall of the frame 2 and are rotatably connected to one side of each of the two heat-conducting plates 8 via a rotating shaft. This allows the heat generated by the electric heating plate 6 to be transferred to the coal powder inside the frame 2 through the heat-conducting plates 8, the rotating rod 14, and the stirring rod 13, enhancing the heating effect of the coal powder. Simultaneously, several heat-conducting rods 7 are fixedly connected to both sides of the electric heating plate 6. One end of each heat-conducting rod 7 penetrates the side wall of the frame 2, with its extended portion located inside the frame 2, further improving the heating efficiency of the coal powder, reducing its moisture content, increasing its fluidity, and effectively preventing coal powder clumping and blockage. In addition, a regulating valve 5 is connected to the top feed inlet of the injection tank 3, and the inlet of the regulating valve 5 is connected to the bottom of the frame 2. The flow rate of pulverized coal from the frame 2 into the injection tank 3 can be controlled by the regulating valve 5 according to the needs of blast furnace smelting, realizing flexible adjustment of the pulverized coal supply and ensuring a continuous and stable supply of pulverized coal during blast furnace smelting, while also improving the adaptability and controllability of the charging mechanism. During operation, the top of the frame 2 is connected to a top cover 9 via a hinge, allowing for easy opening of the top cover 9 to add or clean the pulverized coal inside the frame 2. Simultaneously, during stirring and heating, opening the top cover 9 can also evaporate the hot air inside the frame 2, improving the operational convenience of the charging mechanism and making the process of adding and cleaning pulverized coal simpler and faster, while also facilitating the maintenance and upkeep of the charging mechanism.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A feeding mechanism suitable for injecting pulverized coal, comprising a base (1), and a frame (2) fixedly connected to the top of the base (1), a spraying tank (3) communicated to the bottom of the frame (2), and a coal gun (4) communicated to the discharge port of the spraying tank (3), characterized in that, A drive motor (10) is bolted to one side of the outer wall of the frame (2), and a rotating rod (14) is rotatably connected to the lower side of the frame (2). A stirring rod (13) is rotatably connected to the upper inner side of the frame (2), and one end of the stirring rod (13) is connected to one end of the rotating rod (14) by a belt (12). One end of the rotating rod (14) passes through the side wall of the frame (2) and is connected to the output shaft of the drive motor (10). 4) Several stirring plates (15) are fixedly connected to the upper part. An electric heating plate (6) is fixedly connected to one side of the outer wall of the frame (2). A heat-conducting plate (8) is fixedly connected to the upper side and the lower side of the inner wall of the electric heating plate (6). One end of the rotating rod (14) and one end of the stirring rod (13) pass through the side wall of the frame (2). One end of the rotating rod (14) and one end of the stirring rod (13) are rotatably connected to one side of the two heat-conducting plates (8) respectively through a rotating shaft.

2. The feeding mechanism for pulverized coal injection according to claim 1, characterized in that, One end of the rotating rod (14) and one end of the stirring rod (13) are both fitted with pulleys (11), and the two pulleys (11) are connected by a belt (12) winding around each other.

3. The feeding mechanism for pulverized coal injection according to claim 1, characterized in that, The bottom of the spray tank (3) is fixedly connected to the top of the base (1) by bolts. The top inlet of the spray tank (3) is connected to a regulating valve (5), and the inlet of the regulating valve (5) is connected to the bottom of the frame (2).

4. The feeding mechanism for pulverized coal injection according to claim 1, characterized in that, Several heat-conducting rods (7) are fixedly connected to both sides of the electric heating plate (6), and one end of all the heat-conducting rods (7) penetrates the side wall of the frame (2), and the extension of all the heat-conducting rods (7) is located inside the frame (2).

5. A feeding mechanism suitable for pulverized coal injection according to claim 1, characterized in that, The top of the frame (2) is rotatably connected to the top cover (9) via a hinge.

6. A feeding mechanism suitable for pulverized coal injection according to claim 1, characterized in that, Both ends of the rotating rod (14) and both ends of the stirring rod (13) pass through the two sides of the frame (2) through bearing sleeves, and the rotating rod (14), the stirring rod (13) and the stirring plate (15) are all made of metal heat-conducting materials.

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