A splash-proof converter

Abstract

This utility model discloses an anti-splash converter, including a converter body. An anti-splash top cover is fixed to the top of the converter body. The anti-splash top cover includes a furnace top cover. A steel outlet is opened on one side of the top surface of the furnace top cover, and a furnace opening is opened at the center of the top surface of the furnace top cover. Slag-pressing pipes are distributed on both sides of the furnace opening. A material storage chamber is opened inside the slag-pressing pipe, and an auger is installed at the axis of the material storage chamber. This anti-splash converter, through the slag-pressing pipes fixed on both sides of the top surface of the furnace top cover, allows raw dolomite slag to be input into the discharge pipe and output through the auger structure inside the slag-pressing pipe. During the output process, the connecting shaft and the dispersing disc rotate simultaneously, and the discharging strips disperse the discharged material, thus evenly spreading it onto the furnace surface. This achieves a safe slag-pressing process, avoids manual handling, improves safety and convenience, and serves the purpose of preventing splashing.

Description

Technical Field

[0001] This utility model relates to the field of iron and steel smelting technology, specifically to an anti-splash converter. Background Technology

[0002] A steelmaking converter is a cylindrical, tilting vessel that uses molten iron as its main raw material. Oxygen is blown into the iron, causing oxidation reactions with carbon, silicon, and other elements. The heat of this reaction completes the steelmaking process. Its name comes from its unique design, allowing the furnace to rotate around a horizontal axis. In the early stages of converter blowing, the temperature of the semi-steel inside the furnace is relatively low, and the carbon content of the molten steel is high. When oxygen is blown in through the oxygen lance, the temperature of the molten steel rises rapidly. When the temperature reaches a certain level, the carbon-oxygen reaction inside the furnace suddenly erupts, producing large amounts of carbon monoxide and carbon dioxide. This causes the slag volume to increase dramatically, and a large amount of slag rushes out of the furnace opening, resulting in slag splashing. In the later stages of blowing, improper operation can lead to metal splashing.

[0003] Currently, controlling slag overflow during converter tapping mainly involves controlling the converter endpoint operation and having personnel throw slag-pressing materials such as lightly burned dolomite / lime during the tapping process. Since personnel need to be close to the furnace mouth to throw slag-pressing materials, slag spraying can easily cause burns. In particular, with the development of larger converters, the risks of manual slag pressing are increasing, and poor slag pressing can also easily lead to severe slag overflow at the furnace mouth during converter tapping.

[0004] The above-mentioned converter tapping process uses manual slag pressing, which increases the labor intensity of the job. In addition, the slag pressing materials such as lightly calcined dolomite / lime have limited slag pressing effect and limited anti-splashing effect, resulting in significant safety hazards. Utility Model Content

[0005] The purpose of this invention is to provide an anti-splash converter to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a splash-proof converter, comprising a converter body, a splash-proof top cover fixed to the top of the converter body, the splash-proof top cover including a furnace top cover; a steel outlet is provided on one side of the top surface of the furnace top cover, and a furnace opening is provided at the center of the top surface of the furnace top cover, slag pressing pipes are distributed on both sides of the furnace opening, a material storage chamber is provided inside the slag pressing pipe, an auger frame is provided at the axis of the material storage chamber, a motor frame is shaft-connected to one end of the auger frame, and a feed pipe is fixed to one side of the motor frame; a discharge pipe is fixed to one end of the slag pressing pipe, and a collar is fixed to the outer wall of the discharge pipe; a connecting shaft is provided at the center of the discharge pipe, a dispersing disc is fixed to one end of the connecting shaft, and a deflector strip is distributed around the outer wall of the dispersing disc.

[0007] Furthermore, the furnace top cover is fixedly connected to the top surface of the converter body, and the top of the furnace top cover is in a raised, semi-closed shape.

[0008] Furthermore, the tapping port is connected to the interior of the converter body, and the slag pressing pipes are symmetrically distributed along both sides of the tapping port.

[0009] Furthermore, the slag pressing pipe is embedded and fixed to both sides of the furnace top cover through the discharge pipe and the collar, and the discharge pipe is connected to the interior of the converter body.

[0010] Furthermore, the auger frame forms a rotating structure with the slag pressing pipe via the motor frame, and the other end of the auger frame is fixed to the connecting shaft.

[0011] Furthermore, the other end of the connecting shaft is fixedly connected to the axis of the dispersing disk, and the deflector strips are distributed equidistantly in a ring along the outer wall of the dispersing disk.

[0012] Furthermore, the converter body includes an outer furnace body, with an outer hoop fixed to the outer walls around the outer furnace body, a rotating shaft fixed to the outer walls on both sides of the outer hoop, and a tripod fixed to the bottom of the outer hoop.

[0013] Furthermore, the outer furnace body has a furnace cavity inside, and the outer furnace body is fixedly connected to the outer hoop and the tripod, with the tripod evenly distributed around the bottom surface of the outer hoop.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. The anti-splash converter of this utility model provides a certain degree of protection during the steel tapping process through the semi-enclosed furnace top cover, which, together with the steel tapping port, stabilizes the steel tapping process, while the furnace opening can reduce the pressure inside the furnace.

[0015] 2. The anti-splash converter of this utility model has slag pressing pipes fixed on both sides of the top surface of the furnace cover. The raw dolomite slag pressing material can be input into the discharge pipe through the auger frame structure inside the slag pressing pipe. During the output process, the connecting shaft and the dispersing disc are rotated simultaneously. With the help of the baffle strip, the discharged material is dispersed, so that it is evenly sprinkled into the furnace surface, achieving a safe slag pressing process, avoiding manual handling, improving safety and convenience, and achieving the purpose of preventing splashing.

[0016] 3. The outer furnace body of the anti-splash converter of this utility model has an outer hoop structure fixed around the outer wall. It can work with the triangular frame around the bottom of the outer hoop to maintain the stability of the overall external structure. The top of the outer furnace body is fixed to the anti-splash top cover, which can maintain the structural stability of the entire converter during use. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the converter body of this utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of the converter body of this utility model; Figure 3 This is a three-dimensional structural diagram of the anti-splash top cover of this utility model; Figure 4 This is a three-dimensional structural diagram of the slag-pressing pipe of this utility model; Figure 5 This is a side view of the internal structure of the slag pressing pipe of this utility model.

[0018] In the diagram: 1. Converter body; 101. Outer furnace body; 102. Outer hoop; 103. Rotating shaft; 104. Triangular frame; 105. Furnace cavity; 2. Anti-splash top cover; 201. Furnace top cover; 202. Steel tapping port; 203. Furnace opening; 204. Slag pressing pipe; 205. Material storage cavity; 206. Screw auger frame; 207. Motor frame; 208. Feed pipe; 209. Discharge pipe; 210. Collar; 211. Connecting shaft; 212. Dispersion disc; 213. Digging bar. Detailed Implementation

[0019] Embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present invention are shown in the drawings. Without conflict, embodiments and features in the embodiments of the present invention can be combined with each other.

[0020] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] This embodiment provides, for example Figure 1-5 The diagram shows an anti-splash converter, comprising a converter body 1, with an anti-splash top cover 2 fixed to the top of the converter body 1. The anti-splash top cover 2 includes a furnace top cover 201. A steel tapping port 202 is provided on one side of the top surface of the furnace top cover 201, and a furnace opening 203 is provided at the center of the top surface of the furnace top cover 201. Slag-pressing pipes 204 are distributed on both sides of the furnace opening 203. A material storage chamber 205 is provided inside the slag-pressing pipe 204, and an auger is provided at the axis of the material storage chamber 205. The auger frame 206 has a motor frame 207 connected to one end of it, and a feed pipe 208 is fixed to one side of the motor frame 207; a discharge pipe 209 is fixed to one end of the slag pressing pipe 204, and a collar 210 is fixed to the outer wall of the discharge pipe 209; a connecting shaft 211 is provided in the center of the discharge pipe 209, and a dispersing disc 212 is fixed to one end of the connecting shaft 211, and a deflector strip 213 is distributed around the outer wall of the dispersing disc 212.

[0022] Furthermore, the furnace top cover 201 is fixedly connected to the top surface of the converter body 1, and the top of the furnace top cover 201 is in a raised semi-closed shape; the steel outlet 202 is connected to the interior of the converter body 1, and the slag pressing pipe 204 is symmetrically distributed along both sides of the steel outlet 202; the slag pressing pipe 204 is embedded and fixed to both sides of the furnace top cover 201 through the discharge pipe 209 and the collar 210, and the discharge pipe 209 is connected to the interior of the converter body 1; the auger frame 206 forms a rotating structure with the slag pressing pipe 204 through the motor frame 207, and the other end of the auger frame 206 is fixed to the connecting shaft 211; the other end of the connecting shaft 211 is fixedly connected to the axis of the dispersing disc 212, and the deflector strips 213 are distributed equidistantly in a ring along the outer wall of the dispersing disc 212.

[0023] Furthermore, the converter body 1 includes an outer furnace body 101. An outer hoop 102 is fixed to the outer walls around the outer furnace body 101. A rotating shaft 103 is fixed to the outer walls on both sides of the outer hoop 102. A tripod 104 is fixed to the bottom of the outer hoop 102. A furnace cavity 105 is opened inside the outer furnace body 101. The outer furnace body 101 is fixedly connected to the outer hoop 102 and the tripod 104. The tripod 104 is equidistantly arranged around the bottom surface of the outer hoop 102.

[0024] like Figure 1-2 As shown, the outer furnace body 101 of the anti-splash converter provided in the above embodiment has an outer hoop 102 structure fixed around the outer wall. It can work with the triangular frame 104 around the bottom of the outer hoop 102 to maintain the stability of the overall external structure. The top of the outer furnace body 101 is fixed to the anti-splash top cover 2, which can maintain the structural stability of the entire converter during use.

[0025] like Figure 3-5 As shown, the anti-splash converter provided in the above embodiment can provide a certain degree of protection during the steel tapping process through the semi-enclosed furnace top cover 201, which works in conjunction with the steel tapping port 202 to stabilize steel tapping, while the furnace opening 203 can reduce the pressure inside the furnace. At the same time, the slag pressing pipes 204 fixed on both sides of the top surface of the furnace top cover 201 can input the slag pressing material into the discharge pipe 209 through the auger frame 206 structure inside the slag pressing pipe 204. During the output process, the connecting shaft 211 and the dispersing disc 212 are rotated synchronously, and the discharge material particles are dispersed in conjunction with the deflector strip 213, so that they are evenly sprinkled into the furnace surface, achieving a safe slag pressing process, avoiding manual handling, improving safety and convenience, and achieving the purpose of preventing splashing.

[0026] The slag-pressing material stored in the storage chamber 205 of the anti-splash converter provided in the above embodiment is raw dolomite or limestone particles. Compared with traditional lightly calcined dolomite or limestone, it can reduce the early heating rate of the molten pool, delay the violent oxidation of carbon in the molten iron, and reduce the explosive generation of CO gas. The CO2 gas generated by the decomposition of raw dolomite is diffused in the slag layer, promotes the uniform distribution of fine bubbles, increases the height of foam slag, forms a physical barrier to inhibit the splashing of metal droplets, and can effectively reduce the splashing problem.

[0027] In summary, when using the anti-splash converter provided in the above embodiment, the user can first put the required slag-pressing material into the storage chamber 205. Then, the motor frame 207 drives the auger frame 206 to rotate, and the auger frame 206 conveys the raw dolomite or limestone particles of the slag-pressing material to the discharge pipe 209 through the auger frame 206. At the same time, when the auger frame 206 rotates, it will also drive the connected connecting shaft 211 and the dispersing disc 212 to rotate synchronously. At this time, the particles output from the discharge pipe 209 fall on the surface of the dispersing disc 212, and the rotating dispersing disc 212 will evenly spread the material particles in the furnace through the ring-shaped deflector strips 213, thus completing the addition of the slag-pressing material.

[0028] The above description is merely a selection of preferred embodiments of this utility model and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of this utility model in the embodiments is not limited to the specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this utility model.

Claims

1. A splashguard tilting ladle comprising a ladle body (1), characterised in that, The top of the converter body (1) is fixed with an anti-splash top cover (2), which includes a furnace top cover (201); a steel outlet (202) is opened on one side of the top surface of the furnace top cover (201), and a furnace opening (203) is opened at the center of the top surface of the furnace top cover (201). Slag-pressing pipes (204) are distributed on both sides of the furnace opening (203). A material storage chamber (205) is opened inside the slag-pressing pipe (204), and an auger frame (206) is set on the axis of the material storage chamber (205). (206) has a motor frame (207) connected to one end of it, and a feed pipe (208) is fixed to one side of the motor frame (207); a discharge pipe (209) is fixed to one end of the slag pressing pipe (204), and a collar (210) is fixed to the outer wall of the discharge pipe (209); a connecting shaft (211) is provided in the center of the discharge pipe (209), and a dispersing disc (212) is fixed to one end of the connecting shaft (211), and a deflector strip (213) is distributed around the outer wall of the dispersing disc (212).

2. A splashguard ladle as defined in claim 1, wherein The furnace top cover (201) is fixedly connected to the top surface of the converter body (1), and the top of the furnace top cover (201) is protruding and semi-closed.

3. A splash guard ladle as defined in claim 1 wherein, The tapping port (202) is connected to the interior of the converter body (1), and the slag pressing pipe (204) is symmetrically distributed along both sides of the tapping port (202).

4. A splash guard ladle as defined in claim 1 wherein, The slag pressing pipe (204) is embedded and fixed to both sides of the furnace top cover (201) through the discharge pipe (209) and the collar (210), and the discharge pipe (209) is connected to the interior of the converter body (1).

5. A splash guard ladle as defined in claim 1 wherein, The auger frame (206) forms a rotating structure with the slag pressing pipe (204) via the motor frame (207), and the other end of the auger frame (206) is fixed to the connecting shaft (211).

6. A splash guard ladle as defined in claim 1 wherein, The other end of the connecting shaft (211) is fixedly connected to the axis of the dispersing disk (212), and the deflector strips (213) are distributed equidistantly in a ring along the outer wall of the dispersing disk (212).

7. A splash guard ladle as defined in claim 1 wherein, The converter body (1) includes an outer furnace body (101), an outer hoop (102) is fixed around the outer walls of the outer furnace body (101), a rotating shaft (103) is fixed on the outer walls of the two sides of the outer hoop (102), and a tripod (104) is fixed at the bottom of the outer hoop (102).

8. A splash guard ladle as defined in claim 7 wherein, The outer furnace body (101) has a furnace cavity (105) inside, and the outer furnace body (101) is fixedly connected to the outer hoop (102) and the tripod (104), and the tripod (104) is equidistantly arranged around the bottom surface of the outer hoop (102).

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