Air inlet pipe with drying device for smelting furnace

Abstract

The utility model relates to the field of smelting furnaces, in particular to an air inlet pipe with a drying device for a smelting furnace, the air inlet pipe comprises an air inlet pipe connected with the smelting furnace, the air inlet pipe is sequentially provided with a drying pipe and a catalysis pipe in the direction away from the smelting furnace, and the catalysis pipe is filled with a catalyst. Supporting plates are arranged at the upper end and the lower end of the drying pipe, through holes allowing gas to pass through are formed in the supporting plates, and the space between the two supporting plates is filled with a drying agent. The smelting furnace has the effect of reducing moisture in air fed into the smelting furnace by the air inlet pipe.

Description

Technical Field

[0001] The present application relates to the field of smelting furnaces, and in particular to an air inlet pipe with a drying device for a smelting furnace. Background Art

[0002] A smelting furnace refers to a device that melts metal ingots and some scrap metals and adds necessary alloy components to melt them into steel. The working process of a smelting furnace includes loading, charging, smelting and refining.

[0003] The utility model patent with publication number CN219064127U discloses an air inlet pipe with a feeding device for a smelting furnace, including an air inlet pipe and a feed tank. The feed tank is installed on the side wall of the air inlet pipe, and a hopper is slidably installed in the feed tank. An isolation mechanism is provided in the feed tank. The end of the feed tank away from the air inlet pipe is open, and a sealing cover is provided on the feed tank. When the hopper slides to the isolation mechanism, the hopper and the isolation mechanism cooperate to put the material in the hopper into the air inlet pipe.

[0004] This technical solution uses a catalyst to remove hydrogen from the air to increase the purity of the air added to the smelting furnace. However, metal oxides are generally used to remove hydrogen, which produces water as a by-product. During the metal smelting process, more water will damage the structure of the metal workpiece, resulting in lower quality of the final workpiece. Utility Model Content

[0005] In order to reduce the moisture in the air sent into the smelting furnace through the air inlet pipe, the present application provides an air inlet pipe with a drying device for the smelting furnace.

[0006] The present application provides an air inlet pipe with a drying device for a smelting furnace, which adopts the following technical solution:

[0007] An air inlet pipe with a drying device for a smelting furnace comprises an air inlet pipe connected to the smelting furnace, a drying tube and a catalytic tube are sequentially installed on the upper edge of the air inlet pipe in a direction away from the smelting furnace, the catalytic tube is filled with a catalyst, support plates are provided at both upper and lower ends of the drying tube, through holes are opened on the support plates for gas to pass through, and a desiccant is filled between the two support plates.

[0008] By adopting the above technical solution, the air sent into the smelting furnace through the air inlet pipe is first catalyzed by the catalyst in the catalytic tube to convert the hydrogen in the air into water. The air treated by the catalytic tube is dehumidified by the desiccant in the drying tube, so that the water content in the air entering the smelting furnace is less, and the support plate plays the role of placing the desiccant.

[0009] Optionally, a closing door is provided on the side wall of the drying tube. The closing door is located between two support plates. A drying box is provided inside the drying tube. The drying box is arranged between the two support plates, and a desiccant is filled in the drying box.

[0010] After the desiccant absorbs a large amount of water, the drying effect of the desiccant will decline. By adopting the above technical solution, after the operator opens the closing door, the drying box in the drying tube is taken out, the desiccant in the drying box is replaced, and then the drying box filled with the new desiccant is put into the drying tube to complete the replacement of the desiccant. This replacement method is relatively simple to operate.

[0011] Optionally, two detection tubes are sequentially arranged on the side wall of the intake pipe along the direction away from the smelting furnace. One ends of the two detection tubes away from the intake pipe are connected through a viewing tube. The viewing tube is located between the smelting furnace and the drying tube, and a color reagent for detecting water is filled in the viewing tube.

[0012] By adopting the above technical solution, the air dried by the drying tube enters the test tube through the detection tube. When there is a large amount of water in the air, the color reagent in the viewing tube reacts with the water and changes color. The operator can conveniently judge the usage degree of the desiccant by observing the color of the color reagent in the viewing tube.

[0013] Optionally, a baffle for closing the intake pipe is slidably connected to the intake pipe. The baffle is located between the drying tube and the smelting furnace and is perpendicular to the intake pipe.

[0014] When the operator replaces the drying box, the high-temperature gas in the smelting furnace is likely to rush out and cause injury to the operator. By adopting the above technical solution, before the operator opens the closing door, the intake pipe is first closed with the baffle to reduce the harm caused by the high-temperature gas in the smelting furnace rushing out to the operator.

[0015] Optionally, the baffle includes a first baffle and a second baffle. The first baffle is slidably connected to the intake pipe. The second baffle is rotatably connected to one end of the first baffle away from the intake pipe, and a fixing member for maintaining the flush state of the first baffle and the second baffle is provided on the second baffle.

[0016] When the baffle does not close the intake pipe, it will occupy a large amount of space. By adopting the above technical solution, when closing the intake pipe, the operator fixes the first baffle and the second baffle with the fixing member so that the first baffle and the second baffle are combined to form a baffle to facilitate the intake pipe. When the intake pipe is not closed, the operator rotates the second baffle to a vertical state to save space.

[0017] Optionally, the fixing member includes a fixing rod and an elastic clamping block. The fixing rod is provided at one end of the second baffle facing the first baffle. A fixing groove for engaging with the fixing rod is formed on the first baffle. The elastic clamping block is provided on the inner side wall of the fixing groove. The elastic clamping block is configured to engage with the fixing rod when the fixing rod is inserted into the fixing groove.

[0018] By adopting the above technical solution, after the operator inserts the fixing rod into the fixing groove, the elastic clamping block engages with the fixing rod, making the connection between the fixing rod and the fixing groove more stable, and this connection method is relatively convenient to operate.

[0019] Optionally, a connecting ring is provided at one end of the second baffle away from the first baffle. A hook for engaging with the connecting ring is provided on the outer side wall of the intake pipe.

[0020] By adopting the above technical solution, after the second baffle rotates to the vertical state, the connecting ring is connected to the hook, fixing the second baffle and reducing the occurrence of damage caused by the shaking of the second baffle during the operation of the equipment.

[0021] Optionally, a horizontal first connecting pipe is provided at the upper end of the intake pipe. The drying pipe is provided at one end of the first connecting pipe away from the intake pipe and is arranged vertically downward. A horizontal second connecting pipe is provided at the lower end of the drying pipe. The catalytic pipe is provided at one end of the second connecting pipe away from the drying pipe and is arranged vertically upward.

[0022] By adopting the above technical solution, through the arrangement of the first connecting pipe and the second connecting pipe, the air processed by the catalytic pipe will pass through the drying pipe from bottom to top. During the process of the air passing upward through the drying pipe, the desiccant will be blown, increasing the surface area of the desiccant and enhancing the drying effect.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The air sent into the smelting furnace through the intake pipe is first catalyzed by the catalyst in the catalytic pipe to convert hydrogen in the air into water. The air processed by the catalytic pipe removes moisture through the desiccant in the drying pipe, so that the water content in the air entering the smelting furnace is relatively low.

[0025] 2. The air dried by the drying pipe enters the test tube through the detection pipe. When there is more water in the air, the color reagent in the viewing tube reacts with water and changes color. The operator can conveniently judge the usage degree of the desiccant by observing the color of the color reagent in the viewing tube through the viewing tube.

[0026] 3. Before opening the closed door, the operator first closes the intake pipe with the baffle to reduce the harm caused by the high-temperature gas flushing out of the smelting furnace to the operator. Description of the Drawings

[0027] Figure 1 This is a schematic structural view of an air inlet pipe with a drying device for a smelting furnace according to an embodiment of the present application.

[0028] Figure 2 This is a schematic structural view of a drying box and a support plate of an air inlet pipe with a drying device for a smelting furnace according to an embodiment of the present application.

[0029] Figure 3 This is a schematic structural view of a baffle of an air inlet pipe with a drying device for a smelting furnace according to an embodiment of the present application.

[0030] Figure 4 This is a schematic structural view of a first baffle of an air inlet pipe with a drying device for a smelting furnace according to an embodiment of the present application.

[0031] Figure 5 This is a schematic structural view of a second baffle of an air inlet pipe with a drying device for a smelting furnace according to an embodiment of the present application.

[0032] Explanation of reference numerals: 1, smelting furnace; 11, air inlet pipe; 12, first connecting pipe; 13, second connecting pipe; 14, detection pipe; 15, viewing pipe; 2, drying pipe; 21, support plate; 211, through hole; 22, closing door; 23, drying box; 3, catalytic pipe; 4, baffle; 41, first baffle; 42, second baffle; 5, fixing member; 51, fixing rod; 52, elastic clamping block; 53, fixing groove; 61, connecting ring; 62, hook. Detailed implementation manners

[0033] The following further describes the present application in detail Figures 1-5 with reference to the accompanying drawings.

[0034] An embodiment of the present application discloses an air inlet pipe with a drying device for a smelting furnace. Referring to Figure 1 , an air inlet pipe with a drying device for a smelting furnace includes an air inlet pipe 11 for connecting to the smelting furnace 1. The air inlet pipe 11 is installed at the upper end of the smelting furnace 1 and is arranged vertically upward. A horizontal first connecting pipe 12 is connected to the upper end of the air inlet pipe 11. A vertically downward drying pipe 2 is connected to the end of the first connecting pipe 12 away from the air inlet pipe 11. A horizontal second connecting pipe 13 is connected to the lower end of the drying pipe 2. A vertically upward catalytic pipe 3 is connected to the end of the second connecting pipe 13 away from the drying pipe 2. A catalyst for removing hydrogen is filled in the catalytic pipe 3. The air sent into the smelting furnace 1 through the air inlet pipe 11 is first catalyzed by the catalyst in the catalytic pipe 3 to convert the hydrogen in the air into water. The air processed by the catalytic pipe 3 removes moisture through the drying pipe 2, so that the water content in the air entering the smelting furnace 1 is relatively small.

[0035] Referring to Figure 1 and Figure 2, a closing door 22 for opening and closing the drying tube 2 is installed on the side wall of the drying tube 2. Two horizontal support plates 21 are fixedly connected inside the drying tube 2. A plurality of through holes 211 for air to pass through are formed in the support plates 21. The two support plates 21 are respectively located at the upper and lower ends of the closing door 22. A drying box 23 is placed inside the drying tube 2. The drying box 23 is located between the two support plates 21. The drying box 23 is used to accommodate desiccant.

[0036] Refer to Figure 1 , two detection tubes 14 are connected to the side wall of the air inlet pipe 11. The two detection tubes 14 are distributed in the vertical direction. The ends of the two detection tubes 14 away from the air inlet pipe 11 are connected through a viewing tube 15. The viewing tube 15 is made of a transparent material. A color developer is filled in the viewing tube 15. When the drying capacity of the desiccant decreases, the water in the air reacts with the color developer to change the color of the color developer. The operator judges the degree of use of the desiccant through the color of the color developer.

[0037] Refer to Figure 1 , Figure 3 , Figure 4 and Figure 5 , a horizontal baffle 4 is slidably connected to the air inlet pipe 11. The baffle 4 serves to close the air inlet pipe 11. The baffle 4 includes a first baffle 41 and a second baffle 42. The first baffle 41 is slidably connected inside the air inlet pipe 11 in the horizontal direction. The second baffle 42 is rotatably connected to the end of the first baffle 41 away from the air inlet pipe 11. The first baffle 41 and the second baffle 42 are connected and fixed through a fixing member 5. The fixing member 5 includes a fixing rod 51 and an elastic clamping block 52. The fixing rod 51 is fixedly connected to the end of the second baffle 42 facing the first baffle 41. A fixing groove 53 for engaging with the fixing rod 51 is formed in the first baffle 41. The elastic clamping block 52 is fixed to the inner side wall of the fixing groove 53. When the fixing rod 51 is inserted into the fixing groove 53, the elastic clamping block 52 engages with the fixing rod 51 to increase the connection stability. A connecting ring 61 is fixed to the end of the second baffle 42 away from the first baffle 41. A hook 62 for engaging with the connecting ring 61 is fixed to the outer side wall of the air inlet pipe 11. When the second baffle 42 rotates to the vertical state, the hook 62 and the connecting ring 61 are engaged to fix the second baffle 42.

[0038] The implementation principle of an air inlet pipe with a drying device for a melting furnace in an embodiment of the present application is as follows: When delivering air into the melting furnace 1, the air first passes through the catalytic tube 3. The catalyst in the catalytic tube 3 catalyzes the reaction of hydrogen in the air to generate water. The treated air is transported through the second connecting pipe 13 into the drying tube 2. The desiccant in the drying tube 2 removes the water in the air. The relatively dry air after treatment is transported into the melting furnace 1 through the first connecting pipe 12 and the air inlet pipe 11.

[0039] As the device is used, the drying effect of the desiccant decreases, causing the water content in the air in the intake pipe 11 to rise. The air in the intake pipe 11 enters the viewing pipe 15 through the detection pipe 14, and the water in the air reacts with the color developer to change the color of the color developer, reminding the operator that the desiccant needs to be replaced.

[0040] When replacing the desiccant, the operator first separates the connecting ring 61 from the hook 62, then rotates the second baffle 42 to the horizontal position, fixedly connects the first baffle 41 and the second baffle 42 through the fixing member 5, then slides the baffle 4 into the intake pipe 11 to seal the intake pipe 11, and then opens the closing door 22 to replace the drying box 23 and the desiccant.

[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. An air inlet pipe with a drying device for a smelting furnace, characterized in that: It includes an intake pipe (11) connected to a smelting furnace (1). Along the direction away from the smelting furnace (1) on the intake pipe (11), a drying pipe (2) and a catalytic pipe (3) are successively installed. The catalytic pipe (3) is filled with a catalyst. Both the upper and lower ends of the drying pipe (2) are provided with support plates (21). Through holes (211) for gas passage are opened on the support plates (21). A desiccant is filled between the two support plates (21).

2. The air inlet pipe with a drying device for a smelting furnace according to claim 1, characterized in that: A closing door (22) is provided on the side wall of the drying pipe (2). The closing door (22) is located between the two support plates (21). A drying box (23) is provided inside the drying pipe (2). The drying box (23) is arranged between the two support plates (21). The desiccant is filled in the drying box (23).

3. An air inlet pipe with a drying device for a smelting furnace according to claim 1, characterized in that: Two detection pipes (14) are successively provided on the side wall of the intake pipe (11) along the direction away from the smelting furnace (1). One ends of the two detection pipes (14) away from the intake pipe (11) are connected through a viewing pipe (15). The viewing pipe (15) is located between the smelting furnace (1) and the drying pipe (2). A chromogenic agent for detecting water is filled in the viewing pipe (15).

4. The intake pipe with a drying device for a smelting furnace according to claim 1, characterized in that: A baffle (4) for closing the intake pipe (11) is slidably connected to the intake pipe (11). The baffle (4) is located between the drying pipe (2) and the smelting furnace (1) and is perpendicularly arranged to the intake pipe (11).

5. The intake pipe with a drying device for a smelting furnace according to claim 4, characterized in that: The baffle (4) includes a first baffle (41) and a second baffle (42). The first baffle (41) is slidably connected to the intake pipe (11). The second baffle (42) is rotatably connected to one end of the first baffle (41) away from the intake pipe (11). A fixing member (5) for maintaining the flush state of the first baffle (41) and the second baffle (42) is provided on the second baffle (42).

6. The air inlet pipe with a drying device for a smelting furnace according to claim 5, characterized in that: The fixing member (5) includes a fixing rod (51) and an elastic clamping block (52). The fixing rod (51) is arranged at one end of the second baffle (42) facing the first baffle (41). A fixing groove (53) for engaging with the fixing rod (51) is opened on the first baffle (41). The elastic clamping block (52) is arranged on the inner side wall of the fixing groove (53). The elastic clamping block (52) is in a clamping position with the fixing rod (51) when the fixing rod (51) is inserted into the fixing groove (53).

7. An air inlet pipe with a drying device for a smelting furnace according to claim 5, characterized in that: A connecting ring (61) is provided at one end of the second baffle (42) away from the first baffle (41). A hook (62) for engaging with the connecting ring (61) is provided on the outer side wall of the intake pipe (11).

8. The air inlet pipe with a drying device for a smelting furnace according to claim 3, characterized in that: A horizontal first connecting pipe (12) is provided at the upper end of the intake pipe (11). The drying pipe (2) is arranged at one end of the first connecting pipe (12) away from the intake pipe (11) and is vertically downward. A horizontal second connecting pipe (13) is provided at the lower end of the drying pipe (2). The catalytic pipe (3) is arranged at one end of the second connecting pipe (13) away from the drying pipe (2) and is vertically upward.

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