Lead-copper slag flowing groove of heat-resistant bottom blowing furnace

Abstract

The utility model relates to the technical field of slag flowing grooves, in particular to a heat-resisting bottom-blowing furnace lead-copper slag flowing groove which comprises a bottom-blowing furnace body and a supporting base, a slag discharging opening is formed in one side of the bottom-blowing furnace body, a supporting plate is arranged at the top of the supporting base, a supporting frame is fixedly installed at the top of the supporting plate, and a slag discharging opening is formed in the bottom-blowing furnace body. And a slag flowing groove body is fixedly mounted at the top of the supporting frame. According to the lead-copper slag flowing groove of the heat-resistant bottom-blowing furnace, the slag flowing groove body, the steel structure main body, the heat insulation layer and the heat-resistant material layer are used in cooperation, slag can directly make contact with the heat-resistant material layer in the process that the slag is discharged out of the interior of the slag flowing groove body through the slag discharging opening to flow, and the heat-resistant material layer is made of a material formed by combining high-purity ceramic fibers and refractory bricks; and meanwhile, through the arrangement of the heat insulation layer, the heat insulation layer is mainly used for reducing conduction of high-temperature heat from the heat-resistant material layer to the external steel structure main body or the supporting frame.

Description

Technical Field

[0001] The utility model relates to the technical field of slag flow troughs, in particular to a lead and copper slag flow trough for a heat-resistant bottom-blown furnace. Background Art

[0002] Bottom-blown furnaces are commonly used in the lead and copper smelting processes to separate molten lead, copper, and other impurities. However, during operation, hot slag flows along the slag trough, where temperatures can reach over 1200°C. This places extremely high demands on the slag trough's heat resistance.

[0003] Existing slag trough materials often struggle to withstand prolonged high-temperature shocks. Commonly used refractory or metal materials, such as high-chromium cast iron, refractory bricks, or heat-resistant steel, perform well at room and moderate temperatures. However, at such high temperatures, the internal microstructure of the materials is susceptible to changes, leading to a significant decrease in their mechanical properties. For example, refractory bricks may experience thermal cracking or spalling, while metal materials may experience creep (gradual deformation at high temperatures) or oxidative corrosion, compromising the structural integrity of the slag trough and making it susceptible to deformation or damage, thus affecting smelting efficiency and equipment life.

[0004] Therefore, it is necessary to provide a heat-resistant bottom-blown furnace lead-copper slag trough to solve the above technical problems. Utility Model Content

[0005] The purpose of the utility model is to provide a lead and copper slag trough for a heat-resistant bottom-blown furnace to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A lead-copper slag trough for a heat-resistant bottom-blown furnace, comprising:

[0008] A bottom-blown furnace body and a support base, wherein a slag discharge port is provided on one side of the bottom-blown furnace body, a support plate is provided on the top of the support base, a support frame is fixedly installed on the top of the support plate, a slag trough body is fixedly installed on the top of the support frame, the slag trough body comprises a steel structure body, a heat insulation layer is fixedly installed on the inner surface of the steel structure body, and a heat-resistant material layer is fixedly installed on the inner surface of the heat insulation layer.

[0009] Preferably, a slide is provided on the top of the support base, a threaded rod is rotatably installed inside the slide, a movable block is sleeved on the outer wall of the threaded rod, and the movable block is slidably connected to the slide, and the movable block is fixedly connected to the bottom of the support plate, and a motor is fixedly installed on one side of the support base, and the driving end of the motor passes through one side of the support base and extends to the inside of the slide and is fixedly connected to one end of the threaded rod.

[0010] Preferably, a threaded hole adapted to the threaded rod is provided on the movable block, and the movable block is threadedly connected to the threaded rod through the threaded hole provided thereon.

[0011] Preferably, a plurality of mounting grooves are provided at the bottom of the support plate, balls are movably mounted on the mounting grooves, and the balls are in rolling contact with the top of the support base.

[0012] Preferably, the heat-resistant material layer is made of high-purity ceramic fiber and refractory bricks.

[0013] Preferably, the thermal insulation layer is made of alumina foam.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model uses a slag trough body, a steel structure body, an insulation layer and a heat-resistant material layer in combination. During the slag discharge from the slag trough body through the slag outlet and the flow process, the slag will directly contact the heat-resistant material layer. The heat-resistant material layer adopts a combination of high-purity ceramic fiber and refractory bricks, which can operate stably for a long time in a high-temperature environment above 1200°C. At the same time, through the setting of the insulation layer, the main function of the insulation layer is to reduce the high-temperature heat conducted from the heat-resistant material layer to the external steel structure body or the support frame, thereby reducing the temperature of the external structure and reducing thermal stress. It can effectively protect the external steel structure body of the slag trough from high-temperature erosion, prevent structural deformation or damage caused by excessive temperature, and improve smelting efficiency and equipment life.

[0016] 2. The utility model automatically moves the slag trough body from the installation position below the slag discharge port on one side of the bottom-blown furnace body through the coordinated use of the bottom-blown furnace body, the slag discharge port, the support base, the threaded rod, the movable block, the support plate, the support frame and the slideway, so as to avoid the slag trough body causing obstruction when the staff are standing in front of the slag discharge port for maintenance work. Compared with the cumbersome operation of relying on external lifting equipment for lifting and moving in the traditional method, the slag trough body has autonomous mobility, which not only improves the convenience of operation but also enhances practicality. Under the precise control of the motor, the slag trough body can be moved to the specified position quickly and accurately, which greatly saves maintenance and overhaul time and improves work efficiency and safety. Overall, this design not only optimizes the equipment management process, but also improves the production flexibility and continuity of the smelter. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 This is a schematic structural diagram of the slag trough body in the utility model;

[0019] Figure 3 This is a schematic diagram of the connection structure between the support base and the support plate in the present invention;

[0020] Figure 4 This is a bottom view of the support plate structure of the present invention.

[0021] In the figure: 1. Bottom-blown furnace body; 2. Slag discharge port; 3. Slag flow chute body; 4. Support base; 5. Threaded rod; 6. Movable block; 7. Support plate; 8. Support frame; 9. Slide; 10. Motor; 11. Steel structure body; 12. Insulation layer; 13. Heat-resistant material layer; 14. Ball bearing; 15. Mounting groove. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figures 1-4 , an embodiment provided by the utility model:

[0027] A lead-copper slag trough for a heat-resistant bottom-blown furnace, comprising:

[0028] A bottom-blown furnace body 1 and a support base 4, a slag outlet 2 is provided on one side of the bottom-blown furnace body 1, a support plate 7 is provided on the top of the support base 4, a support frame 8 is fixedly installed on the top of the support plate 7, a slag trough body 3 is fixedly installed on the top of the support frame 8, the slag trough body 3 includes a steel structure body 11, an insulation layer 12 is fixedly installed on the inner surface of the steel structure body 11, and a heat-resistant material layer 13 is fixedly installed on the inner surface of the insulation layer 12.

[0029] A slide 9 is provided on the top of the support base 4, and a threaded rod 5 is rotatably installed inside the slide 9. A movable block 6 is sleeved on the outer wall of the threaded rod 5, and the movable block 6 is slidably connected to the slide 9. The movable block 6 is fixedly connected to the bottom of the support plate 7. A motor 10 is fixedly installed on one side of the support base 4, and the driving end of the motor 10 passes through one side of the support base 4 and extends to the inside of the slide 9 and is fixedly connected to one end of the threaded rod 5.

[0030] In one embodiment, a threaded hole adapted to the threaded rod 5 is provided on the movable block 6 , and the movable block 6 is threadedly connected to the threaded rod 5 through the threaded hole provided thereon.

[0031] In one preferred embodiment, the bottom of the support plate 7 is provided with a plurality of mounting grooves 15, in which balls 14 are movably mounted. These balls 14 roll in contact with the top of the support base 4, ensuring sufficient contact area between the support plate 7 and the support base 4, providing a more stable support base for the slag chute body 3. Under high-temperature and heavy-load operating conditions, this increased contact area effectively disperses the load and prevents structural damage caused by localized stress concentration. The rolling contact between the balls 14 and the support base 4 reduces friction, thereby improving the efficiency of the motor 10.

[0032] In one embodiment, the heat-resistant material layer 13 is made of high-purity ceramic fiber and refractory bricks. This combination of high-purity ceramic fiber and refractory bricks effectively resists the impact and erosion of high-temperature slag, ensuring the long-term stable operation of the slag chute in extremely high-temperature environments. This composite structure not only improves the slag chute's thermal insulation and heat resistance, but also enhances its thermal shock resistance and erosion resistance.

[0033] In one of the preferred embodiments, the material of the thermal insulation layer 12 is alumina foam. Alumina foam as the material of the thermal insulation layer 12 not only performs well in terms of thermal insulation performance, structural strength, high temperature resistance, thermal shock resistance, chemical stability, etc., but also can reduce equipment weight, improve installation convenience, extend equipment life, and has the advantages of being environmentally friendly and recyclable.

[0034] The working principle of the present invention is as follows: the parts not involved in this application are the same as the existing technology or can be implemented by using the existing technology. When the slag trough body 3 is manufactured, a heat insulation layer 12 is first fixed on the inner surface of the steel structure body 11, and then a heat-resistant material layer 13 is installed on the inner surface of the heat insulation layer 12. The heat-resistant material layer 13 is composed of a combination of high-purity ceramic fiber and refractory bricks. A layer of ceramic fiber module is first laid on the inner surface of the heat insulation layer 12, and then refractory bricks are laid on the ceramic fiber layer. Later, the slag is discharged from the slag trough body 3 through the slag outlet 2 and flows inside. It will directly contact with the heat-resistant material layer 13, and the heat-resistant material layer 13 is made of a combination of high-purity ceramic fiber and refractory bricks, and can operate stably for a long time in a high-temperature environment above 1200°C. At the same time, through the setting of the heat insulation layer 12, the main function of the heat insulation layer 12 is to reduce the high-temperature heat conducted from the heat-resistant material layer 13 to the external steel structure body 11 or the support frame 8, thereby reducing the temperature of the external structure and reducing thermal stress. It can effectively protect the external steel structure body 11 of the slag trough from high-temperature erosion, prevent structural deformation or damage caused by excessive temperature, and improve smelting efficiency and equipment life.

[0035] The entire device is controlled by a master control button. Since the device matched with the control button is a commonly used device and belongs to the existing common knowledge technology, its electrical connection relationship and specific circuit structure are not described here. When the slag chute body 3 is in use, one end of the slag chute body 3 is located below the slag discharge port 2, which can transport the high-temperature molten slag discharged from the slag discharge port 2. When the slag discharge port 2 needs to be inspected and maintained, the motor 10 can be controlled to start working when the equipment is stopped. The driving end of the motor 10 drives the threaded rod 5 to rotate, and the threaded transmission between the threaded rod 5 and the movable block 6, and the movable block 6 and the sliding The sliding relationship of the channel 9 enables the movable block 6 to move laterally stably. The movement of the movable block 6 drives the support frame 8 to move through the support plate 7, and the support frame 8 drives the slag trough body 3 to move, and automatically removes the slag trough body 3 from the installation position below the slag outlet 2 on the side of the bottom-blown furnace body 1, so as to avoid the slag trough body 3 causing obstruction when the staff is standing in front of the slag outlet 2 for maintenance work. Compared with the cumbersome operation of relying on external lifting equipment for lifting and moving in the traditional method, the slag trough body 3 has autonomous mobility, which not only improves the convenience of operation, but also enhances practicality. Under the precise control of the motor 10, the slag trough body 3 can be moved to the specified position quickly and accurately, which greatly saves maintenance and overhaul time and improves work efficiency and safety. Overall, this design not only optimizes the equipment management process, but also improves the production flexibility and continuity of the smelter.

[0036] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat-resistant bottom-blown furnace lead and copper slag trough, characterized in that: It includes: A bottom-blowing furnace body (1) and a support base (4), wherein a slag outlet (2) is provided on one side of the bottom-blowing furnace body (1), a support plate (7) is provided on the top of the support base (4), a support frame (8) is fixedly installed on the top of the support plate (7), a slag trough body (3) is fixedly installed on the top of the support frame (8), the slag trough body (3) comprises a steel structure body (11), a heat insulation layer (12) is fixedly installed on the inner surface of the steel structure body (11), and a heat-resistant material layer (13) is fixedly installed on the inner surface of the heat insulation layer (12).

2. A lead and copper slag trough for a heat-resistant bottom-blown furnace according to claim 1, characterized in that: A slideway (9) is provided on the top of the support base (4), a threaded rod (5) is rotatably installed inside the slideway (9), a movable block (6) is sleeved on the outer wall of the threaded rod (5), and the movable block (6) is slidably connected to the slideway (9), and the movable block (6) is fixedly connected to the bottom of the support plate (7), and a motor (10) is fixedly installed on one side of the support base (4), and a driving end of the motor (10) passes through one side of the support base (4) and extends to the inside of the slideway (9) and is fixedly connected to one end of the threaded rod (5).

3. The lead and copper slag trough for a heat-resistant bottom-blown furnace according to claim 2, characterized in that: The movable block (6) is provided with a threaded hole adapted to the threaded rod (5), and the movable block (6) is threadedly connected to the threaded rod (5) via the threaded hole provided thereon.

4. The lead and copper slag trough for a heat-resistant bottom-blown furnace according to claim 2, characterized in that: The bottom of the support plate (7) is provided with a plurality of mounting grooves (15), and balls (14) are movably mounted on the mounting grooves (15), and the balls (14) are in rolling contact with the top of the support base (4).

5. The lead and copper slag trough for a heat-resistant bottom-blown furnace according to claim 1, characterized in that: The heat-resistant material layer (13) is made of high-purity ceramic fibers and refractory bricks.

6. The lead and copper slag trough for a heat-resistant bottom-blown furnace according to claim 1, characterized in that: The material of the heat insulation layer (12) is aluminum oxide foam.

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