Water-cooling blanking device of refining furnace

Abstract

The utility model belongs to the technical field of refining furnaces, and particularly relates to a water-cooling blanking device of a refining furnace. Comprising a discharging pipe, a water cooling channel is formed in the pipe wall of the discharging pipe, the water cooling channel is longitudinally wound in the pipe wall of the discharging pipe, steel slag splashed to the pipe wall of the discharging pipe is cooled, part of the steel slag falls off after being cooled to a certain degree, and the other part of the steel slag is still adhered to the inner wall of the discharging pipe after being cooled to a certain degree. And when the waste steel is added again, the steel slag falls into the refining furnace after mutual collision, a wear-resisting plate is fixedly welded to the inner wall of the discharging pipe and used for protecting the inner wall of the discharging pipe, the nitrogen cooling ring sprays nitrogen at the lower end of the discharging pipe, and the nitrogen cooling ring is used for cooling the steel slag at the lower end of the discharging pipe. And part of tiny steel slag is cooled in the splashing process, on one hand, some tiny steel slag can be prevented from adhering to the pipe wall of the discharging pipe, on the other hand, the splashed steel slag is cooled, and the inner wall of the discharging pipe is prevented from being burnt and damaged.

Description

Technical Field

[0001] This utility model belongs to the field of refining furnace technology, specifically relating to a water-cooled feeding device for a refining furnace. Background Technology

[0002] In existing technology, the refining furnace feed pipe is designed as a φ300*600 steel pipe. During the refining process, 2 to 4 tons of scrap steel need to be added each time to reduce costs and increase efficiency. However, during the steelmaking process, splashed steel slag will stick to the feed pipe. After a long period of accumulation, the pipe opening will become blocked, making it impossible to add scrap steel smoothly when needed, thus making this operation impossible to complete. At the same time, the splashed steel slag will burn the pipe wall, damaging the feed pipe and increasing production costs. Utility Model Content

[0003] This invention provides a water-cooled feeding device for a refining furnace to address the problem of slag splashing and clogging the feeding pipe.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A water-cooled feeding device for a refining furnace includes a feeding pipe with a water-cooling channel inside the pipe wall. The two ends of the water-cooling channel are respectively connected to a water inlet and a water outlet.

[0006] Furthermore, the water-cooling channel is longitudinally coiled inside the wall of the feed pipe.

[0007] Furthermore, a wear-resistant plate is fixedly welded to the inner wall of the feeding pipe. The wear-resistant plate is used to protect the inner wall of the feeding pipe and prevent the water cooling channel inside the feeding pipe from being damaged.

[0008] Furthermore, a nitrogen cooling ring is welded to the lower end of the feeding pipe. Multiple air outlets are opened on the inner wall of the nitrogen cooling ring, and the multiple air outlets are arranged in a ring and uniformly. An air inlet is provided on the outer wall of the nitrogen cooling ring.

[0009] Furthermore, the water inlet is located at the lower part of the feed pipe, and the water outlet is located at the upper part of the feed pipe.

[0010] Compared with the prior art, the present invention has the following advantages:

[0011] 1. This utility model installs a nitrogen cooling ring at the lower end of the feeding pipe. The nitrogen cooling ring has multiple air outlets, and nitrogen is sprayed from the multiple air outlets at the same time, so that some of the tiny steel slags are cooled during the spraying process. On the one hand, it can prevent some tiny steel slags from sticking to the pipe wall of the feeding pipe, and on the other hand, it can cool down the sprayed steel slags to prevent them from burning and damaging the inner wall of the feeding pipe.

[0012] 2. This utility model cools the steel slag splashed onto the wall of the feeding pipe by opening a water-cooling channel. Some of the steel slag will fall off after cooling to a certain extent, while the other part will remain stuck to the inner wall of the feeding pipe even after the temperature drops. However, the adhesion of the cooled steel slag will also be weak. When scrap steel is added again, the steel slag will fall into the refining furnace after mutual collision. This effectively prevents the problem of blockage at the feeding port, thereby avoiding accidents caused by blockage of the feeding pipe, ensuring the smooth operation of steel production, and improving steelmaking efficiency.

[0013] 3. This utility model welds the wear-resistant plate onto the inner wall of the entire feed pipe to prevent scrap steel from damaging the water-cooling pipe and reduces production costs. Attached Figure Description

[0014] Figure 1 This is a top view of the present invention;

[0015] Figure 2 This is a schematic diagram of the structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of this utility model;

[0017] Figure 4 This is the front view of the present invention;

[0018] In the diagram, 1 is the feed pipe, 2 is the water cooling channel, 3 is the water inlet, 4 is the water outlet, 5 is the wear-resistant plate, 6 is the nitrogen cooling ring, 7 is the air outlet, and 8 is the air inlet. Detailed Implementation

[0019] To further illustrate the technical solution of this utility model, the following embodiments will be used to further explain this utility model.

[0020] like Figure 1 and Figure 2As shown, a water-cooled feeding device for a refining furnace includes a feeding pipe 1. A water-cooling channel 2 is formed inside the wall of the feeding pipe 1. An inlet 3 and an outlet 4 are connected to both ends of the water-cooling channel 2, respectively. The inlet 3 is located at the lower part of the feeding pipe 1, and the outlet 4 is located at the upper part of the feeding pipe 1. The water-cooling channel 2 is longitudinally coiled inside the wall of the feeding pipe 1. By forming the water-cooling channel 2 inside the wall of the feeding pipe 1, the slag splashed onto the wall of the feeding pipe 1 is cooled. Some of the slag will fall off after cooling to a certain degree, while the remaining slag, although its temperature decreases, will still adhere to the inner wall of the feeding pipe 1. When scrap steel is added again, the scrap steel will collide with the loosely adhered slag, causing it to fall into the refining furnace. This effectively prevents the feeding pipe 1 from becoming blocked, thus avoiding accidents caused by blockages and ensuring the smooth operation of steel production, thereby improving steelmaking efficiency. Wear-resistant plate 5 is fixedly welded to the inner wall of the feeding pipe 1. The wear-resistant plate 5 is used to protect the inner wall of the feeding pipe 1. The wear-resistant plate 5 is welded to the entire inner wall of the feeding pipe to prevent scrap steel from damaging the water cooling pipe and reduce production costs.

[0021] like Figure 3 and Figure 4 As shown, a nitrogen cooling ring 6 is welded to the lower end of the feeding pipe 1. Multiple air outlets 7 are opened on the inner wall of the nitrogen cooling ring 6, and the multiple air outlets 7 are arranged in a ring and uniformly. An air inlet 8 is provided on the outer wall of the nitrogen cooling ring 6. By installing a nitrogen cooling ring 6 at the lower end of the feeding pipe, and opening multiple air outlets 7, nitrogen is sprayed from the multiple air outlets 7 at the same time, so that some of the tiny steel slag is cooled during the spraying process. On the one hand, it can prevent some tiny steel slag from sticking to the pipe wall of the feeding pipe 1, and on the other hand, it can cool down the sprayed steel slag to prevent it from burning and damaging the inner wall of the feeding pipe 1.

[0022] The foregoing has shown and described the main features and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.

[0023] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A water-cooled runout table for a refining furnace, characterized by: The application relates to a water-cooled blanking tube, which comprises a blanking tube (1), a water-cooled channel (2) is arranged in the tube wall of the blanking tube (1), and the water-cooled channel (2) is connected with a water inlet (3) and a water outlet (4) respectively.

2. A water cooled runout table for a refining furnace as defined in claim 1, characterized in that: The water-cooled channel (2) is longitudinally coiled in the tube wall of the blanking tube (1).

3. A water cooled runout table for a refining furnace as defined in claim 1, characterized in that: A wear-resistant plate (5) is fixedly welded on the inner wall of the blanking tube (1), and the wear-resistant plate (5) is used for protecting the inner wall of the blanking tube (1) and preventing the water-cooled channel (2) in the blanking tube (1) from being damaged.

4. A water cooled runout table for a refining furnace as defined in claim 1, characterized in that: A nitrogen cooling ring (6) is welded on the lower end of the blanking tube (1), a plurality of gas outlets (7) are arranged in the inner wall of the nitrogen cooling ring (6), the plurality of gas outlets (7) are uniformly arranged in a ring shape, and an air inlet (8) is arranged on the outer wall of the nitrogen cooling ring (6).

5. A water cooled runout table for a refining furnace as defined in claim 1, wherein: The water inlet (3) is located at the lower part of the blanking tube (1), and the water outlet (4) is located at the upper part of the blanking tube (1).

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