High-temperature-resistant anti-erosion oxygen-enriched molten pool smelting side-blown furnace
By using curved refractory bricks and outer refractory bricks in the oxygen-rich molten pool smelting side blower, combined with heat absorption blocks, heat collection plates and wet circulation systems, the problems of erosion of refractory bricks in the hearth lined refractory bricks and water jacket cooling liquid failure in the prior art are solved, achieving higher high-temperature erosion resistance and longer service life.
Patent Information
- Application Number
- CN202420614328.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-28
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-03-28
AI Technical Summary
The existing oxygen-rich molten pool smelting side blower is prone to erosion and fall off under high temperature and erosion conditions. The refractory bricks in the hearth lined in the hearth are prone to erosion and fall off, and the water jacket coolant fails, resulting in damage to the device, increasing maintenance costs and reducing service life.
A high-temperature and erosion-resistant oxygen-rich molten pool smelting side blower was designed. The curved refractory bricks and outer refractory bricks were laid on the inner and outer walls of the furnace cylinder, and heat absorption blocks and heat collection plates were installed on the outer wall of the furnace body. Combined with the design of the main water pipe and the auxiliary water pipe, the refractory sand and gravel were kept moist through the circulation system of the water pump and the water tank.
Effectively offset the flushing force of metal liquid on the inner wall of the furnace cylinder, improve the stability of the furnace cylinder, extend the service life of the device and reduce maintenance costs.
Smart Images
Figure CN222578868U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of metal smelting, in particular to a high-temperature resistant and corrosion-resistant oxygen-enriched molten pool smelting side-blowing furnace. Background Art
[0002] During the use of the oxygen-enriched side-blown furnace, it will be exposed to high temperature and corrosion, so a high-temperature and corrosion-resistant oxygen-enriched molten pool smelting side-blown furnace is required.
[0003] For example, the patent publication number is CN218764532U, which is an oxygen-enriched molten pool smelting side-blown furnace. A bottom lead port is provided on the furnace cylinder, and the furnace body is provided with a first water jacket, a second water jacket, a third water jacket and a fourth water jacket from bottom to top. A slag outlet and a first tuyere are provided on the first water jacket.
[0004] However, during the actual use of the above-mentioned side-blown furnace, the refractory bricks lining the furnace cylinder may be corroded and may fall off after a long period of operation. Moreover, when the temperature of the furnace body reaches a high value, the coolant in several water jackets may lose its effect. During long-term use, the device may be damaged, which increases the maintenance cost of the device and reduces the service life of the device. For this reason, the applicant proposes a high-temperature resistant and corrosion-resistant oxygen-enriched molten pool smelting side-blown furnace. Utility Model Content
[0005] The utility model aims to provide a high temperature resistant and corrosion resistant oxygen-enriched molten pool smelting side-blowing furnace to solve the problems raised in the above background technology.
[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a high-temperature resistant and corrosion-resistant oxygen-enriched molten pool smelting side-blown furnace, comprising an oxygen-enriched side-blown furnace flue, the bottom of the oxygen-enriched side-blown furnace flue is integrally formed with a protection mechanism, the protection mechanism comprises a furnace cylinder, the inner wall of the furnace cylinder is paved with curved refractory bricks, the outer wall of the furnace cylinder is paved with an outer layer of refractory bricks, a furnace body is integrally formed at the opening at the top of the furnace cylinder, a plurality of heat-absorbing blocks are respectively in contact with the outer walls of the furnace body, heat collecting plates are respectively fixed on the back sides of the two groups of the heat-absorbing blocks, refractory sand and gravel are commonly in contact with the two sides of the outer wall of the furnace body, main water pipes are respectively fixed on the opposite surfaces of the two heat collecting plates, and a plurality of auxiliary water pipes are respectively fixed on the outer walls of the main water pipe.
[0007] Preferably, a smelting mechanism is fixed to the outer wall of the protection mechanism, and the bottom of the flue of the oxygen-enriched side-blown furnace is fixed to the top of one end of the smelting mechanism.
[0008] Preferably, the water inlet end of the main water pipe is connected to a water pump, the water inlet end of the water pump is connected to a water tank, the tops of both ends of the water tank are respectively fixed with suction pipes, the air inlet ends of the suction pipes are located at the tops of both ends of the refractory sand and gravel, a fixing frame is fixed to the bottom of the water tank, and a steel frame fence is installed on the outer wall of the outer refractory bricks.
[0009] Preferably, the sum of the lengths of the two auxiliary water pipes is equal to the width of the refractory sand and gravel, the inner wall diameters of the main water pipe and the auxiliary water pipe are smaller than the thickness of the refractory sand and gravel, and the length of the main water pipe is equal to the height of the refractory sand and gravel.
[0010] Preferably, the smelting mechanism includes a bottom box, a guide block is integrally formed on one side of the bottom box, a discharge port is opened on one side of the inner wall of the backflow trough of the guide block, an outer shell is installed at the top opening of the bottom box, a slag discharge port is opened on one side of the outer wall of the outer shell, a slag sticking port is opened on one side of the outer wall of the outer shell, the slag discharge port is located at the top of the slag sticking port, two groups of oxygen-enriched air ports are respectively opened on the other two sides of the outer wall of the outer shell, the two groups of oxygen-enriched air ports correspond to each other, and a feed port is fixed at one end of the top opening of the outer shell.
[0011] Preferably, the discharge port is connected to the furnace cylinder in the protection mechanism, the slag discharge port and the slag sticking port are both connected to one side of the furnace cylinder, the two groups of oxygen-enriched air ports at the bottom are connected to the furnace cylinder, the two groups of oxygen-enriched air ports at the top are connected to the furnace body, and the feed port is connected to the furnace body and the furnace cylinder in the protection mechanism in sequence.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] The high-temperature resistant and corrosion-resistant oxygen-enriched molten pool smelting side-blown furnace has added curved refractory bricks and outer refractory bricks through the setting of protection mechanism. When smelting metal, the metal liquid in the furnace can effectively offset the scouring force due to its own curved surface when flushing the curved refractory bricks. In addition, the outer refractory bricks arranged outside can make the furnace more stable, thereby increasing the service life of the device and reducing the maintenance cost of the device.
[0014] At the same time, refractory sand and main water pipes are installed in the protection mechanism. When the metal is smelted, the refractory sand can absorb the temperature of the furnace body. At the same time, due to the action of the water pump, the refractory sand can become moist, preventing the furnace body from cracking during long-term operation, further improving the service life of the device and reducing the maintenance cost of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the top structure of the utility model;
[0016] Figure 2 This is a schematic diagram of the bottom structure of the utility model;
[0017] Figure 3 This is a schematic diagram of the protection mechanism structure of the utility model;
[0018] Figure 4It is a schematic diagram of the smelting mechanism structure of the utility model.
[0019] In the figure: 1. Oxygen-enriched side-blown furnace flue; 2. Protection mechanism; 201. Furnace hearth; 202. Curved refractory bricks; 203. Outer refractory bricks; 204. Furnace body; 205. Heat absorbing block; 206. Heat collecting plate; 207. Refractory sand and gravel; 208. Main water pipe; 209. Auxiliary water pipe; 210. Water pump; 211. Water tank; 212. Air intake pipe; 213. Fixed frame; 214. Steel frame railing; 3. Smelting mechanism; 301. Bottom box; 302. Guide block; 303. Discharge port; 304. Shell; 305. Slag discharge port; 306. Slag sticking port; 307. Oxygen-enriched air port; 308. Feed port. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] In the process of metal smelting, oxygen-enriched side-blown furnaces are often needed for smelting. During the operation of the oxygen-enriched side-blown furnace, it will be exposed to high temperature and erosion. In order to increase the service life of the device, a high-temperature resistant and erosion-resistant oxygen-enriched molten pool smelting side-blown furnace is needed. In the actual use of most traditional side-blown furnaces, the metal liquid will continuously flush the inside of the device during processing, causing the refractory material on the inner wall of the device to be eroded. In the long-term use process, the high temperature may cause cracks in the device, reducing the service life of the device and increasing the maintenance cost of the device. For this reason, the applicant proposes a high-temperature resistant and erosion-resistant oxygen-enriched molten pool smelting side-blown furnace.
[0022] like Figure 1-Figure 4As shown, the utility model provides a technical solution: a high-temperature resistant and erosion-resistant oxygen-enriched molten pool smelting side-blown furnace, comprising an oxygen-enriched side-blown furnace flue 1, a protective mechanism 2 is integrally formed at the bottom of the oxygen-enriched side-blown furnace flue 1, the protective mechanism 2 comprises a furnace cylinder 201, the inner wall of the furnace cylinder 201 is paved with curved refractory bricks 202, the outer wall of the furnace cylinder 201 is paved with outer refractory bricks 203, a furnace body 204 is integrally formed at the top opening of the furnace cylinder 201, and the outer walls of the furnace body 204 are respectively in contact with a plurality of heat absorbing blocks 205, and the back surfaces of the two groups of heat absorbing blocks 205 are respectively fixed with heat collecting plates 206, and the two heat collecting plates 206 are respectively in contact with the two sides of the outer wall of the furnace body 204 with refractory sand and gravel 207, and the opposite surfaces of the two heat collecting plates 206 are respectively fixed with main water pipes 208, and the outer walls of the main water pipes 208 are respectively fixed with There are several auxiliary water pipes 209, and a smelting mechanism 3 is fixed on the outer wall of the protection mechanism 2. The bottom of the oxygen-enriched side-blowing furnace flue 1 is fixed to the top of one end of the smelting mechanism 3. The water inlet end of the main water pipe 208 is connected to the pipeline with a water pump 210, and the water inlet end of the water pump 210 is connected to the pipeline with a water tank 211. Intake pipes 212 are fixed to the top of both ends of the water tank 211 respectively, and the air inlet ends of the intake pipes 212 are located at the top of both ends of the refractory sand and gravel 207. A fixing frame 213 is fixed to the bottom of the water tank 211, and a steel frame railing 214 is installed on the outer wall of the outer refractory brick 203. The sum of the lengths of the two auxiliary water pipes 209 must be equal to the width of the refractory sand and gravel 207, the inner wall diameters of the main water pipe 208 and the auxiliary water pipe 209 must be smaller than the thickness of the refractory sand and gravel 207, and the length of the main water pipe 208 must be equal to the height of the refractory sand and gravel 207.
[0023] It should be noted that: when smelting metal, firstly, the metal and other mixed materials are poured into the furnace 201 through the smelting mechanism 3. When the temperature of the device continues to rise and the metal is melted, the molten metal may flush the furnace 201. At this time, the molten metal will not transfer all the flushing force to the curved refractory bricks 202 due to the curved surface of the curved refractory bricks 202. In addition, the outer refractory bricks 203 of the outer wall of the furnace 201 and the steel frame rails 214 will make the furnace 201 more stable during use. At the same time, The two groups of heat absorbing blocks 205 will absorb the temperature of the furnace body 204 and transfer it to the refractory sand and gravel 207 and the heat collecting plate 206. Then, the water pump 210 will draw the water in the water tank 211 into the main water pipe 208, and transfer it to several auxiliary water pipes 209 through the main water pipe 208, and then transfer it from the auxiliary water pipes 209 to the refractory sand and gravel 207 to wet the refractory sand and gravel 207. Because the temperature of the refractory sand and gravel 207 is relatively high, the moisture will be converted into water vapor. At this time, the water vapor will be transferred to the water tank 211 again through the air intake pipe 212 for recycling.
[0024] like Figure 4As shown, the utility model provides a technical solution: a high temperature resistant and corrosion resistant oxygen-enriched molten pool smelting side-blowing furnace, including a smelting mechanism 3, the smelting mechanism 3 includes a bottom box 301, a guide block 302 is integrally formed on one side of the bottom box 301, a discharge port 303 is opened on one side of the inner wall of the backflow groove of the guide block 302, a shell 304 is installed at the top opening of the bottom box 301, a slag discharge port 305 is opened on one side of the outer wall of the shell 304, a slag sticking port 306 is opened on one side of the outer wall of the shell 304, the slag discharge port 305 is located at the top of the slag sticking port 306, and the outer wall of the shell 304 is also provided with a discharge port 303. Two groups of oxygen-enriched air ports 307 are respectively provided on the outer sides, and the two groups of oxygen-enriched air ports 307 correspond to each other. A feed port 308 is fixed at one end of the top opening of the outer shell 304, the discharge port 303 is connected to the furnace cylinder 201 in the protection mechanism 2, the slag discharge port 305 and the slag sticking port 306 are both connected to one side of the furnace cylinder 201, the two groups of oxygen-enriched air ports 307 at the bottom are connected to the furnace cylinder 201, the two groups of oxygen-enriched air ports 307 at the top are connected to the furnace body 204, and the feed port 308 is connected to the furnace body 204 and the furnace cylinder 201 in the protection mechanism 2 in sequence.
[0025] It should be noted that: when smelting the metal, the metal and other mixed materials are first poured into the protection mechanism 2 through the feed port 308, and then oxygen is blown into the device through the oxygen-enriched air port 307 so that the metal can be melted more fully, and then the sticky slag in the metal solution is removed through the slag port 306, and the slag on the top of the metal solution is removed through the slag outlet 305. When the metal is finished smelting, it is discharged through the discharge port 303 and collected by the guide groove on the guide block 302.
[0026] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is limited by the attached embodiments and their equivalents.
Claims
1. A high temperature resistant and corrosion resistant oxygen-enriched molten pool smelting side-blowing furnace, comprising an oxygen-enriched side-blowing furnace flue (1), characterized in that: A protective mechanism (2) is integrally formed at the bottom of the oxygen-enriched side-blown furnace flue (1), the protective mechanism (2) comprising a furnace cylinder (201), the inner wall of the furnace cylinder (201) being paved with curved refractory bricks (202), the outer wall of the furnace cylinder (201) being paved with outer refractory bricks (203), a furnace body (204) is integrally formed at the top opening of the furnace cylinder (201), the outer wall of the furnace body (204) being in contact with a plurality of heat absorbing blocks (205) on both sides, heat collecting plates (206) being fixed on opposite sides of two groups of the heat absorbing blocks (205), refractory sand and gravel (207) being in contact with both sides of the outer wall of the furnace body (204), main water pipes (208) being fixed on opposite sides of the two heat collecting plates (206), and a plurality of auxiliary water pipes (209) being fixed on both sides of the outer wall of the main water pipe (208).
2. The high temperature resistant and corrosion resistant oxygen-enriched molten pool smelting side-blown furnace according to claim 1 is characterized in that: A smelting mechanism (3) is fixed to the outer wall of the protection mechanism (2), and the bottom of the oxygen-enriched side-blowing furnace flue (1) is fixed to the top of one end of the smelting mechanism (3).
3. The high temperature resistant and corrosion resistant oxygen-enriched molten pool smelting side-blown furnace according to claim 2 is characterized in that: The water inlet end of the main water pipe (208) is connected to a pipeline with a water pump (210), the water inlet end of the water pump (210) is connected to a pipeline with a water tank (211), the tops of both ends of the water tank (211) are respectively fixed with air intake pipes (212), the air intake ends of the air intake pipes (212) are located at the tops of both ends of the refractory sandstone (207), a fixing frame (213) is fixed to the bottom of the water tank (211), and the outer wall of the outer refractory brick (203) is installed with a steel frame railing (214).
4. The high temperature resistant and corrosion resistant oxygen-enriched molten pool smelting side-blown furnace according to claim 3 is characterized in that: The sum of the lengths of the two auxiliary water pipes (209) is equal to the width of the refractory sand and gravel (207), the inner wall diameters of the main water pipe (208) and the auxiliary water pipe (209) are smaller than the thickness of the refractory sand and gravel (207), and the length of the main water pipe (208) is equal to the height of the refractory sand and gravel (207).
5. The high temperature resistant and corrosion resistant oxygen-enriched molten pool smelting side-blown furnace according to claim 3 is characterized in that: The smelting mechanism (3) comprises a bottom box (301), a guide block (302) is integrally formed on one side of the bottom box (301), a discharge port (303) is opened on one side of the inner wall of the backflow trough of the guide block (302), a shell (304) is installed at the top opening of the bottom box (301), a slag discharge port (305) is opened on one side of the outer wall of the shell (304), a slag sticking port (306) is opened on one side of the outer wall of the shell (304), the slag discharge port (305) is located at the top of the slag sticking port (306), two groups of oxygen-enriched air ports (307) are respectively opened on the other two sides of the outer wall of the shell (304), and the two groups of oxygen-enriched air ports (307) correspond to each other, and a feed port (308) is fixed at one end of the top opening of the shell (304).
6. The high temperature resistant and corrosion resistant oxygen-enriched molten pool smelting side-blown furnace according to claim 5, characterized in that: The discharge port (303) is connected to the furnace (201) in the protection mechanism (2); the slag discharge port (305) and the slag sticking port (306) are both connected to one side of the furnace (201); the two groups of oxygen-enriched air ports (307) located at the bottom are connected to the furnace (201); the two groups of oxygen-enriched air ports (307) located at the top are connected to the furnace body (204); and the feed port (308) is connected to the furnace body (204) and the furnace (201) in the protection mechanism (2) in sequence.
Citation Information
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