Copper melting furnace with bottom blowing function

Abstract

The utility model discloses a copper melting furnace with a bottom air blowing function, and belongs to the field of copper melting furnaces, the copper melting furnace comprises a furnace shell, the furnace shell is filled with a furnace lining material, the furnace lining material is internally provided with breathable sand, the breathable sand is internally provided with an air brick, the bottom of the air brick is fixedly connected with an air conveying pipe, and the air conveying pipe is fixedly connected with an air outlet of the furnace shell. And a gas port size adjusting device is arranged at the bottom of the furnace shell. The supply amount of oxygen is controlled by adjusting the size of the gas ports, and therefore distribution and uniformity of bottom gas in the smelting process are optimized. The combustion efficiency of the copper melting furnace is improved, oxygen supply can be adjusted according to actual requirements, the temperature control and fuel utilization rate in the melting process can be improved, and products with different oxygen content parameters can be manufactured according to the concentration and duration of blown gas. And a product with relatively low oxygen content can be produced, so that the addition of the product is improved.

Description

Technical Field

[0001] This application relates to the field of copper melting furnaces, and more particularly, to a copper melting furnace with a bottom blowing function. Background Art

[0002] A copper melting furnace is a key device in the metallurgical industry for melting and refining copper and its alloys. The design of traditional copper melting furnaces mainly focuses on the high-temperature resistance and structural stability of the furnace body, but relatively less attention is paid to the gas flow and temperature uniformity inside the furnace. The copper melting process needs to be carried out at high temperatures and requires the temperature inside the furnace to be kept stable to ensure the efficiency of the melting process and the quality of the products.

[0003] Traditional copper melting furnaces usually supply oxygen and other gases through top or side intakes to improve the atmosphere during the melting process. However, such a gas delivery system often has the following problems: Due to the fixed setting of the gas input points, the distribution of gas inside the furnace may be uneven, resulting in an unstable atmosphere in the melting area, thus affecting the melting effect; the adjustment of the gas flow generally requires manual operation, making it difficult to monitor and adjust the gas flow in real time, thereby affecting the control accuracy of the melting process. Summary of the Utility Model

[0004] In view of the deficiencies of the prior art, the present utility model provides a copper melting furnace with a bottom blowing function, which solves the problems raised in the above background art. To achieve the above objectives, the present utility model is realized through the following technical solutions: A copper melting furnace with a bottom blowing function includes a furnace shell, the inside of the furnace shell is filled with furnace lining material, a permeable sand is arranged inside the furnace lining material, a permeable brick is arranged inside the permeable sand, an air delivery pipe is fixedly connected to the bottom of the permeable brick, and an air port size adjusting device is arranged at the bottom of the furnace shell;

[0005] The air port size adjusting device includes a circular plate fixedly connected to the bottom of the furnace shell, a rotating ring is movably sleeved on the outer wall of the circular plate, a fixing plate is fixedly connected to the inner wall of the rotating ring, a sliding groove is formed inside the fixing plate, a baffle is arranged inside the rotating ring, an L-shaped plate is fixedly connected to the bottom of the furnace shell, a motor is fixedly connected to the upper end of the L-shaped plate, a gear is fixedly connected to the output end of the motor, and an annular plate is fixedly connected to the side of the fixing plate away from the rotating ring.

[0006] Preferably, a sliding shaft is fixedly connected to the outer wall of the baffle, and the sliding shaft is slidably connected inside the sliding groove.

[0007] Preferably, a guiding groove is formed on the outer wall of the circular plate, and the bottom of the sliding shaft is slidably connected inside the guiding groove.

[0008] Preferably, a ring of tooth blocks is fixedly connected to the outer wall of the rotating ring, and the rotating ring is meshed with the gear through the tooth blocks.

[0009] Preferably, a sealing assembly is provided at the bottom of the ring plate. The sealing assembly includes an annular groove which is opened at the bottom of the ring plate. A communicating pipe is rotatably connected to the middle of the L-shaped plate through a bearing. The upper end of the communicating pipe is fixedly connected with a sealing ring, and the upper end of the sealing ring is inserted into the interior of the annular groove.

[0010] Preferably, sealing gaskets are provided inside both sides of the annular groove.

[0011] The advantages of the present application are as follows:

[0012] (1). By adjusting the size of the air inlet, the present application controls the supply amount of oxygen, thereby optimizing the distribution and uniformity of the bottom gas during the smelting process. This not only improves the combustion efficiency of the copper melting furnace, but also can adjust the oxygen supply according to actual needs, which can improve the temperature control and fuel utilization rate during the smelting process. Products with different oxygen content parameters can be produced according to the concentration and duration of the blown gas; products with a lower oxygen content can be produced to increase the added value of the products.

[0013] (2). After the sealing assembly is provided in the present application, gas leakage can be effectively prevented, ensuring the stability and safety of gas transmission. The cooperation between the sealing ring and the annular groove, as well as the setting of the sealing gasket, enhance the sealing performance of the system, thereby improving the overall efficiency and reliability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings constituting a part of the present application are used to provide a further understanding of the present application, making other features, objectives and advantages of the present application more obvious. The schematic embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0015] Figure 1 is the overall structural schematic diagram of the present utility model;

[0016] Figure 2 is the side cross-sectional structural schematic diagram of the present utility model;

[0017] Figure 3 is the Figure 2 enlarged structural schematic diagram at A in the present utility model;

[0018] Figure 4 is the bottom cross-sectional structural schematic diagram of the present utility model;

[0019] Figure 5 is the Figure 4 enlarged structural schematic diagram at B in the present utility model.

[0020] In the above figures,

[0021] 1. Furnace shell; 2. Furnace lining material; 3. Permeable sand; 4. Permeable brick; 5. Gas transmission pipe; 61. Circular plate; 62. Fixed plate; 63. Chute; 64. Slide shaft; 65. Baffle; 66. Motor; 67. Gear; 68. Ring plate; 69. Guide groove; 610. Rotating ring; 611. L-shaped plate; 71. Annular groove; 72. Sealing ring; 73. Sealing gasket; 74. Connecting pipe. Detailed implementation mode

[0022] In order to enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

[0023] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will describe this application in detail with reference to the drawings and in conjunction with the embodiments. Embodiment 1

[0024] See Figures 1-4 , this embodiment provides a copper melting furnace with a bottom blowing function, including a furnace shell 1, which provides support and protection for internal components. The inside of the furnace shell 1 is filled with a furnace lining material 2, which provides thermal insulation to maintain the stability of the temperature inside the furnace. A permeable sand 3 is arranged inside the furnace lining material 2, and a permeable brick 4 is arranged inside the permeable sand 3. Its main function is to evenly transfer the gas at the bottom to the smelting area. The bottom of the permeable brick 4 is fixedly connected with a gas transmission pipe 5, and an air port size adjusting device is arranged at the bottom of the furnace shell 1;

[0025] The air port size adjusting device includes a circular plate 61, the circular plate 61 is fixedly connected to the bottom of the furnace shell 1, a rotating ring 610 is movably sleeved on the outer wall of the circular plate 61, a fixed plate 62 is fixedly connected to the inner wall of the rotating ring 610, a chute 63 is opened inside the fixed plate 62, a baffle 65 is arranged inside the rotating ring 610, an L-shaped plate 611 is fixedly connected to the bottom of the furnace shell 1, a motor 66 is fixedly connected to the upper end of the L-shaped plate 611, an output end of the motor 66 is fixedly connected with a gear 67, and a ring plate 68 is fixedly connected to a side of the fixed plate 62 away from the rotating ring 610.

[0026] A slide shaft 64 is fixedly connected to the outer wall of the baffle 65, and the slide shaft 64 is slidably connected inside the chute 63.

[0027] A guide groove 69 is opened on the outer wall of the circular plate 61, and the bottom of the slide shaft 64 is slidably connected inside the guide groove 69.

[0028] A ring of teeth is fixedly connected to the outer wall of the rotating ring 610, and the rotating ring 610 is engaged with the gear 67 through the teeth.

[0029] When the above-mentioned device is in specific use, start the motor 66 to drive the gear 67 to rotate. Then, the gear 67 will drive the rotating ring 610 to rotate through the teeth. When the rotating ring 610 rotates, the fixed plate 62 inside it will also rotate accordingly. Therefore, it can drive the sliding shaft 64 in the chute 63 opened inside it to move. Then, the sliding shaft 64 will drive the baffle 65 to move outward along the direction of the guide groove 69, so as to expand the gap between the baffles 65, and thus more oxygen can be transported to the inside of the permeable brick 4 through the air delivery pipe 5. On the contrary, the oxygen supply can also be reduced by narrowing the distance between the baffles 65. Embodiment 2

[0030] See Figures 1-4 , on the basis of Embodiment 1, a sealing component is arranged at the bottom of the ring plate 68. The sealing component includes an annular groove 71 opened at the bottom of the ring plate 68. The middle part of the L-shaped plate 611 is rotatably connected with a communicating pipe 74 through a bearing. The upper end of the communicating pipe 74 is fixedly connected with a sealing ring 72, and the upper end of the sealing ring 72 is inserted into the annular groove 71.

[0031] Sealing gaskets 73 are arranged inside both sides of the annular groove 71 to ensure good sealing between the sealing ring 72 and the annular groove 71 and prevent gas leakage.

[0032] When the above-mentioned device is in specific use, install the communicating pipe 74 to fix it first in the middle of the L-shaped plate 611, and then insert the sealing ring 72 at its bottom into the annular groove 71, so that both sides of the sealing ring 72 are closely attached to the sealing gaskets 73 on both sides of the annular groove 71.

[0033] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A copper melting furnace with a bottom blowing function, comprising a furnace shell (1), characterized in that: The interior of the furnace shell (1) is filled with furnace lining material (2). Inside the furnace lining material (2), there is permeable sand (3). Inside the permeable sand (3), there is a permeable brick (4). The bottom of the permeable brick (4) is fixedly connected to an air delivery pipe (5). At the bottom of the furnace shell (1), there is an air port size adjusting device. The air port size adjusting device includes a circular plate (61). The circular plate (61) is fixedly connected to the bottom of the furnace shell (1). A rotating ring (610) is movably sleeved on the outer wall of the circular plate (61). An fixing plate (62) is fixedly connected to the inner wall of the rotating ring (610). A sliding groove (63) is formed inside the fixing plate (62). A baffle plate (65) is arranged inside the rotating ring (610). An L-shaped plate (611) is fixedly connected to the bottom of the furnace shell (1). A motor (66) is fixedly connected to the upper end of the L-shaped plate (611). The output end of the motor (66) is fixedly connected to a gear (67). A ring plate (68) is fixedly connected to the side of the fixing plate (62) away from the rotating ring (610).

2. The copper melting furnace with a bottom blowing function according to claim 1, characterized in that: A sliding shaft (64) is fixedly connected to the outer wall of the baffle plate (65). The sliding shaft (64) is slidably connected inside the sliding groove (63).

3. The copper melting furnace with bottom blowing function according to claim 2, characterized in that: A guiding groove (69) is formed on the outer wall of the circular plate (61). The bottom of the sliding shaft (64) is slidably connected inside the guiding groove (69).

4. A copper melting furnace with a bottom blowing function according to claim 3, characterized in that: A circle of tooth blocks is fixedly connected to the outer wall of the rotating ring (610), and the rotating ring (610) is engaged with the gear (67) through the tooth blocks.

5. The copper melting furnace with a bottom blowing function according to claim 4, characterized in that: A sealing assembly is arranged at the bottom of the ring plate (68). The sealing assembly includes an annular groove (71). The annular groove (71) is formed at the bottom of the ring plate (68). A communicating pipe (74) is rotatably connected to the middle of the L-shaped plate (611) through a bearing. A sealing ring (72) is fixedly connected to the upper end of the communicating pipe (74), and the upper end of the sealing ring (72) is inserted inside the annular groove (71).

6. The copper melting furnace with a bottom blowing function according to claim 5, characterized in that: Sealing gaskets (73) are arranged on both sides inside the annular groove (71).

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