A flash furnace with a spout

Abstract

The utility model discloses a kind of spouts for flash furnace, including chute body, the bottom end upper surface of chute body is equipped with mounting groove, and electric heating tube is fixedly installed in mounting groove, the bottom end upper surface of chute body is fixedly installed with heat conduction plate outside mounting groove position. The utility model, chute body is fixedly installed in flash furnace slag discharge port, for receiving and guiding furnace slag. When furnace slag enters chute body, first impact its internal buffer plate;Buffer plate is extruded damper after stress, in this process, the spring of the outer surface of damper generates deformation, by the synergistic effect of damper and spring, most impact energy is effectively consumed and absorbed. In addition, the contact area of furnace slag is increased by the extension plate arranged on buffer plate, further disperses and weakens impact force. By the above buffering and absorption mechanism, the direct impact and abrasion of furnace slag to chute body are reduced, so as to realize effective protection to chute body, prolong its service life.

Description

Technical Field

[0001] This utility model relates to the field of metallurgical furnace technology, and in particular to a chute for a flash furnace. Background Technology

[0002] A flash furnace is a widely used intensified smelting equipment in modern metallurgical industry, particularly dominant in the smelting process of sulfide ores such as copper and nickel. Its core working principle involves thoroughly mixing deeply dried powdered concentrate (with a moisture content below 0.3%), flux, and oxygen-enriched air or hot air in a specially designed nozzle. This mixture is then injected at extremely high speed into the top of the reaction tower. During its descent, the mineral particles come into full contact with the oxidizing gas, resulting in a violent oxidation reaction and releasing a large amount of heat. This allows the furnace charge to complete melting, oxidation, and slag formation within seconds. The resulting matte or molten copper falls into a settling tank along with the slag for separation, achieving a continuous, efficient, and automated smelting process. The slag from a flash furnace is typically discharged via a chute.

[0003] Currently, in the operation of flash furnaces, the slag in the sluice box typically comes into direct contact with the sluice box itself. This direct contact results in a large impact force when the slag falls, which accelerates the wear of the sluice box itself over long-term operation, thus shortening its overall service life. The main reason for this is that the existing structure lacks an effective buffer mechanism, causing the slag to rigidly impact the inner wall of the sluice box. This lack of buffering means fails to disperse or absorb the impact energy, further amplifying the wear effect. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a chute for a flash furnace, which can buffer the slag entering the chute body, reduce the impact force of the slag on the chute body, thereby mitigating the wear caused by the impact force on the chute body and extending the service life of the chute body, thus solving the problems in the background technology mentioned above.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a chute for a flash furnace, comprising a chute body, wherein an installation groove is formed on the upper surface of the bottom end of the chute body, and an electric heating tube is fixedly installed in the installation groove; a heat-conducting plate is fixedly installed on the upper surface of the bottom end of the chute body outside the installation groove; a buffer plate is provided above the heat-conducting plate in the chute body, and a damper is fixedly installed between the buffer plate and the heat-conducting plate; a spring is sleeved on the outer surface of the damper; an extension plate is fixedly connected to one side surface of the buffer plate; and a heat-insulating plate is provided above the chute body.

[0006] Preferably, positioning screws are provided through both sides of the top surface of the insulation board, and one end of the positioning screw extends into the interior of the positioning holes opened on both sides of the top surface of the chute body, and the positioning screw is threadedly connected to the positioning hole.

[0007] Preferably, the bottom surface of the insulation board is fixedly connected to two sides of the insert, and one end of the insert extends into the interior of the slots opened on both sides of the top surface of the chute body. The insert and the slot are rectangular structures, and the length and width of the insert are smaller than the length and width of the slot. The insert is inserted into the slot.

[0008] Preferably, guide plates are fixedly connected to both sides of the top surface of the buffer plate inside the chute body.

[0009] Preferably, a mounting plate is fixedly connected to one side surface of the chute body, and a mounting hole is provided through one side surface of the mounting plate.

[0010] Preferably, wear-resistant plates are fixedly installed on both sides of the inner wall of the chute body. The wear-resistant plates have a rectangular structure and correspond to the inner wall of the chute body.

[0011] Preferably, the insulation board is located above the chute body, and the insulation board corresponds to the chute body.

[0012] Preferably, there are multiple dampers, and the multiple dampers are evenly distributed between the buffer plate and the heat-conducting plate.

[0013] Compared with the prior art, this utility model provides a chute for a flash furnace, which has the following advantages: (1) In this utility model, the chute body is fixedly installed at the slag discharge port of the flash furnace to receive and guide the slag. When the slag enters the chute body, it first impacts the buffer plate inside; after being stressed, the buffer plate squeezes the damper. During this process, the spring on the outer surface of the damper deforms. Through the synergistic effect of the damper and the spring, most of the impact energy is effectively consumed and absorbed. In addition, the extension plate on the buffer plate increases the contact area of ​​the slag, further dispersing and weakening the impact force. Through the above-mentioned buffering and absorption mechanism, the direct impact and wear of the slag on the chute body are reduced, thereby achieving effective protection of the chute body and extending its service life.

[0014] (2) In this utility model, during the slag discharge process, the electric heating tube in the installation slot can be turned on to continuously heat the heat-conducting plate to maintain the discharge temperature of the slag. With the use of the insulation plate, the heat loss of the slag in the chute body can be effectively reduced, and the slag solidification caused by the rapid temperature drop can be avoided, thereby ensuring the continuity and stability of the discharge process. In addition, by rotating the positioning screw on the insulation plate to disengage its end from the positioning hole on the top surface of the chute body, and then moving the insulation plate upward, the insert on the bottom surface of the insulation plate can be removed from the slot at the top of the chute body, thereby realizing the disassembly of the insulation plate, which facilitates the subsequent cleaning and maintenance of the inside of the chute body, and helps to improve the practicality and ease of operation of the equipment. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a chute for a flash furnace proposed in this utility model; Figure 2 This is a cross-sectional view of a chute for a flash furnace proposed in this utility model; Figure 3 This is a schematic diagram of the chute body structure of a flash furnace chute proposed in this utility model; Figure 4 This is a schematic diagram of the insulation board structure of a chute for a flash furnace proposed in this utility model; Figure 5 This is a schematic diagram of the buffer plate structure of a chute for a flash furnace proposed in this utility model.

[0017] Legend: 1. Chute body; 2. Buffer plate; 3. Heat-conducting plate; 4. Wear-resistant plate; 5. Mounting hole; 6. Mounting plate; 7. Insulation plate; 8. Positioning screw; 9. Spring; 10. Damper; 11. Guide plate; 12. Extension plate; 13. Mounting groove; 14. Heating element; 15. Positioning hole; 16. Slot; 17. Insert block. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, it can be 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; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0020] Please see Figures 1-5 A flash furnace sluice includes a sluice body 1. An installation groove 13 is formed on the upper surface of the bottom end of the sluice body 1, and an electric heating tube 14 is fixedly installed in the installation groove 13. By turning on the electric heating tube 14 in the installation groove 13, a heat-conducting plate 3 can be heated, thereby maintaining the temperature of the slag during discharge. Combined with the use of an insulation plate 7, heat loss from the slag can be reduced, preventing the slag from solidifying due to rapid temperature dissipation, thus ensuring normal slag discharge. A heat-conducting plate 3 is fixedly installed on the upper surface of the bottom end of the sluice body 1 outside the installation groove 13. A buffer plate 2 is provided above the heat-conducting plate 3 in the sluice body 1, and a damper 10 is fixedly installed between the buffer plate 2 and the heat-conducting plate 3. A spring 9 is sleeved on the outer surface of the damper 10. When the slag enters… When the slag enters the chute body 1, it first comes into contact with the buffer plate 2 in the chute body 1. After being impacted, the buffer plate 2 will squeeze the damper 10, causing the spring 9 on the outer surface of the damper 10 to deform. Through the cooperation of the damper 10 and the spring 9, the impact force on the buffer plate 2 can be consumed and absorbed, thereby reducing the adverse effects of a large impact force on the chute body 1. An extension plate 12 is fixedly connected to one side surface of the buffer plate 2. The use of the extension plate 12 can increase the contact area between the slag and the buffer plate 2, thereby reducing the impact force when the slag enters the chute body 1. An insulation plate 7 is provided above the chute body 1. The use of the insulation plate 7 can reduce the heat loss in the slag and prevent the slag from solidifying during discharge.

[0021] Please see Figure 3 and Figure 4Positioning screws 8 are provided through both sides of the top surface of the insulation board 7, and one end of the positioning screws 8 extends into the interior of the positioning holes 15 opened on both sides of the top surface of the chute body 1. The positioning screws 8 are threadedly connected to the positioning holes 15. The use of positioning screws 8 and positioning holes 15 can limit and fix the insulation board 7, thereby maintaining the stability of the insulation board 7 on the chute body 1. By rotating the positioning screws 8 on the insulation board 7, one end of the positioning screws 8 is moved away from the positioning holes 15 on the top surface of the chute body 1. Then, by moving the insulation board 7 upward, the insert 17 on the bottom surface of the insulation board 7 is moved away from the slot 16 on the top surface of the chute body 1. The insulation board 7 can then be removed from the chute body 1, which facilitates the subsequent cleaning of the chute body 1 and improves its practicality.

[0022] Please see Figure 3 and Figure 4 The bottom surface of the insulation board 7 is fixedly connected to two sides of the insert 17, and one end of the insert 17 extends into the slot 16 opened on both sides of the top surface of the chute body 1. The insert 17 and the slot 16 are rectangular structures. The length and width of the insert 17 are smaller than the length and width of the slot 16. The insert 17 is inserted into the slot 16. The use of the insert 17 and the slot 16 can limit the position of the insulation board 7, thereby maintaining the stability of the insulation board 7 on the chute body 1.

[0023] Please see Figure 2 and Figure 5 The top surface of the buffer plate 2 is fixedly connected to the guide plate 11 on both sides inside the chute body 1. The guide plate 11 can guide and transport the slag entering the buffer plate 2, preventing the slag from falling to the outside of the buffer plate 2.

[0024] Please see Figure 1 and Figure 3 A mounting plate 6 is fixedly connected to one side surface of the chute body 1, and a mounting hole 5 is provided through one side surface of the mounting plate 6. The mounting bolt is passed through the mounting hole 5 to fix the chute body 1 at the slag discharge port of the flash furnace.

[0025] Please see Figure 2 and Figure 3 Wear-resistant plates 4 are fixedly installed on both sides of the inner wall of the chute body 1. The wear-resistant plates 4 are rectangular in structure and correspond to the inner wall of the chute body 1. The use of wear-resistant plates 4 can strengthen the chute body 1, thereby increasing the wear resistance of the chute body 1 and thus helping to extend its service life.

[0026] Please see Figure 1 and Figure 4The insulation board 7 is located above the chute body 1 and corresponds to the chute body 1. The use of the insulation board 7 can reduce the heat loss in the slag and prevent the slag from solidifying due to rapid temperature dissipation, thereby maintaining the normal discharge of slag.

[0027] Please see Figure 2 and Figure 5 Multiple dampers 10 are provided, and the multiple dampers 10 are evenly distributed between the buffer plate 2 and the heat-conducting plate 3. Through the use of dampers 10 and springs 9, the impact force received by the buffer plate 2 can be consumed and absorbed, thereby reducing the impact force of slag when entering the chute body 1. This can reduce the adverse effects of large impact force on the chute body 1, protect the chute body 1, and help extend its service life.

[0028] Working principle: In use, the chute body 1 is fixedly installed at the slag discharge port of the flash furnace to discharge slag. When the slag enters the chute body 1, it first contacts the buffer plate 2 inside the chute body 1. After being impacted, the buffer plate 2 compresses the damper 10, causing the spring 9 on the outer surface of the damper 10 to deform. Through the combined use of the damper 10 and the spring 9, the impact force received by the buffer plate 2 can be consumed and absorbed. The use of the extension plate 12 increases the contact area between the slag and the buffer plate 2, thereby reducing the impact force when the slag enters the chute body 1. This reduces the adverse effects of large impact forces on the chute body 1, protects the chute body 1, and helps extend its lifespan. The service life is improved by heating the heat-conducting plate 3 by opening the heating tube 14 in the installation slot 13, which can maintain the temperature of the slag during discharge. In conjunction with the use of the insulation plate 7, the heat loss in the slag can be reduced, preventing the slag from solidifying due to rapid temperature dissipation, thus ensuring normal slag discharge. By rotating the positioning screw 8 on the insulation plate 7, one end of the positioning screw 8 is moved away from the positioning hole 15 on the top surface of the chute body 1. Then, by moving the insulation plate 7 upward, the insertion block 17 on the bottom surface of the insulation plate 7 is moved away from the slot 16 on the top surface of the chute body 1, and the insulation plate 7 can be removed from the chute body 1. This facilitates subsequent cleaning of the chute body 1 and improves its practicality.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A chute for a flash furnace, comprising a chute body (1), characterized in that, The bottom upper surface of the chute body (1) is provided with an installation groove (13), and an electric heating tube (14) is fixedly installed in the installation groove (13). A heat-conducting plate (3) is fixedly installed on the bottom upper surface of the chute body (1) outside the installation groove (13). A buffer plate (2) is provided above the heat-conducting plate (3) in the chute body (1), and a damper (10) is fixedly installed between the buffer plate (2) and the heat-conducting plate (3). A spring (9) is sleeved on the outer surface of the damper (10). An extension plate (12) is fixedly connected to one side surface of the buffer plate (2). An insulation plate (7) is provided above the chute body (1).

2. The chute for a flash furnace according to claim 1, characterized in that, The top surface of the insulation board (7) is provided with positioning screws (8) on both sides, and one end of the positioning screws (8) extends into the interior of the positioning holes (15) opened on both sides of the top surface of the chute body (1). The positioning screws (8) are threadedly connected to the positioning holes (15).

3. The chute for a flash furnace according to claim 1, characterized in that, The bottom surface of the insulation board (7) is fixedly connected to two sides of the plug (17), and one end of the plug (17) extends into the inside of the slot (16) opened on both sides of the top surface of the chute body (1). The plug (17) and the slot (16) are rectangular structures. The length and width of the plug (17) are smaller than the length and width of the slot (16). The plug (17) is inserted into the slot (16).

4. A chute for a flash furnace according to claim 1, characterized in that, The top surface of the buffer plate (2) is fixedly connected to the guide plate (11) inside the chute body (1) on both sides.

5. A chute for a flash furnace according to claim 1, characterized in that, A mounting plate (6) is fixedly connected to one side surface of the chute body (1), and a mounting hole (5) is provided through one side surface of the mounting plate (6).

6. A chute for a flash furnace according to claim 1, characterized in that, Wear-resistant plates (4) are fixedly installed on both sides of the inner wall of the chute body (1). The wear-resistant plates (4) are rectangular in structure and correspond to the inner wall of the chute body (1).

7. A chute for a flash furnace according to claim 1, characterized in that, The insulation board (7) is located above the chute body (1), and the insulation board (7) corresponds to the chute body (1).

8. A chute for a flash furnace according to claim 1, characterized in that, There are multiple dampers (10), and the multiple dampers (10) are evenly distributed between the buffer plate (2) and the heat-conducting plate (3).

Images