Quick-release concentrate nozzle for flash furnace

Abstract

The utility model discloses a quick-release concentrate nozzle for a flash furnace, and belongs to the technical field of flash furnaces. The device mainly comprises a flow guide cone, a water-cooling bottom plate, a central oxygen pipe and a distribution air ring, the central oxygen pipe is installed at the top of the water-cooling bottom plate, the distribution air ring is installed between the flow guide cone and the water-cooling bottom plate, a plurality of water pipe heads used for being connected with metal hoses are installed at the top of the water-cooling bottom plate, fasteners are arranged on the water-cooling bottom plate, and a threaded opening is formed in the top of the flow guide cone. The central oxygen pipe is matched with the threaded opening, the number of the water pipe heads is four, and the four water pipe heads are symmetrically distributed in pairs. The quick-release concentrate nozzle for the flash furnace has the advantages of being simple in structure, quick to disassemble and assemble and good in sealing performance, solves the problems that an existing nozzle is complex in installation and connection and air leakage and water leakage are caused by untight sealing due to a large number of sealing openings, meanwhile increases the thickness of the water-cooling bottom plate, improves the cooling strength and improves the service life of the water-cooling bottom plate. And the service lives of the concentrate nozzle diversion cone and the water-cooling bottom plate are prolonged.

Description

Technical Field

[0001] This application relates to the field of flash furnace technology, specifically a quick-release concentrate nozzle for a flash furnace. Background Technology

[0002] The concentrate nozzle, located at the top of the flash furnace reaction tower, is the only inlet for the concentrate powder to enter the flash furnace. Its main function is to mix the concentrate powder with oxygen-enriched air, and then use the high-speed airflow through the nozzle to eject the concentrate powder, ensuring smooth feeding. The concentrate powder mainly consists of copper concentrate, slag beneficiation concentrate, flash smelting slag, and quartz sand. The concentrate nozzle comprises a nozzle shell, guide cone, central oxygen pipe, distribution air ring, water-cooled base plate, matching metal hoses, and fastening clips. As a core component of flash smelting, the ease of disassembly and installation during maintenance of the concentrate nozzle, as well as its stability, are particularly important.

[0003] However, in existing technology, the concentrate nozzle water-cooled base plate is installed on the central oxygen pipe disk using crescent blocks and screws for fixation. The distribution air ring is installed between the guide cone and the oxygen pipe disk, with the water-cooled base plate at the bottom. Therefore, the concentrate nozzle guide cone, central oxygen disk, distribution air ring, and water-cooled base plate all need to be sealed, resulting in a high risk of leakage and a complex installation process. Sealing also leaves gaps after installation, creating a risk of subsequent air leakage and deterioration of the flash furnace's condition during operation. Furthermore, due to frequent disassembly and maintenance, reassembly is often not tight, leading to substandard assembly, leaks during pressure testing, and frequent rework. Additionally, the replacement rate of damaged spare parts is high.

[0004] Therefore, it is necessary to provide a quick-release concentrate nozzle for flash furnaces to solve the above problems.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Utility Model Content

[0006] Based on the above-mentioned problems in the existing technology, the problem to be solved by this application is to provide a quick-release concentrate nozzle for a flash furnace. The nozzle has the characteristics of simple structure, quick disassembly and assembly, and good sealing performance. It solves the problems of complex installation and connection of existing nozzles and the lack of air and water leakage due to multiple sealing ports. At the same time, it improves the service life of the concentrate nozzle guide cone and water-cooled base plate.

[0007] The technical solution adopted by this application to solve its technical problem is: a quick-release concentrate nozzle for a flash furnace, including a guide cone, a water-cooled base plate, a central oxygen pipe and a distribution air ring. The central oxygen pipe is installed on the top of the water-cooled base plate, and the distribution air ring is installed between the guide cone and the water-cooled base plate. The top of the water-cooled base plate is equipped with multiple water pipe heads for connecting to metal hoses, and fasteners are provided on the water-cooled base plate.

[0008] Furthermore, the top of the guide cone is provided with a threaded opening, and the central oxygen tube is adapted to the threaded opening.

[0009] Furthermore, the number of water pipe heads is four, and the four water pipe heads are symmetrically distributed in pairs.

[0010] Furthermore, the fastener includes a crescent-shaped block, which is installed on the top of the water-cooled base plate and surrounds the central oxygen pipe.

[0011] Furthermore, the outer wall of the crescent block is provided with a clearance groove for providing clearance space for the multiple water pipe heads.

[0012] Furthermore, the fastener also includes multiple bolts, the crescent block has multiple mounting holes, the top of the water-cooled base plate has multiple threaded holes, and the multiple bolts pass through the multiple mounting holes and are threadedly connected to the threaded holes.

[0013] The beneficial effects of this application are as follows: This application provides a quick-release concentrate nozzle for a flash furnace. The nozzle has the characteristics of simple structure, quick disassembly and assembly, and good sealing performance. It solves the problems of complex installation and connection of existing nozzles and the lack of air and water leakage due to multiple sealing ports. At the same time, it increases the thickness of the water-cooled base plate, increases the cooling intensity, and improves the service life of the concentrate nozzle guide cone and the water-cooled base plate.

[0014] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of the existing technology;

[0017] Figure 2 This is a schematic diagram of the overall structure of this application;

[0018] Figure 3 This is a structural schematic diagram of the fastener described in this application.

[0019] The following are the labeling elements in the figure:

[0020] 1. Flow guide cone; 2. Water-cooled base plate; 3. Central oxygen pipe; 4. Distribution air ring; 5. Water pipe head; 6. Fastener; 61. Crescent block; 62. Mounting hole; 63. Bolt. Detailed Implementation

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0023] like Figure 2-3 As shown, this application provides a quick-release concentrate nozzle for a flash furnace, including a guide cone 1, a water-cooled base plate 2, a central oxygen pipe 3, and a distribution air ring 4. The central oxygen pipe 3 is installed on the top of the water-cooled base plate 2, and the distribution air ring 4 is installed between the guide cone 1 and the water-cooled base plate 2. The top of the water-cooled base plate 2 is equipped with a plurality of water pipe heads 5 for connecting to metal hoses, and fasteners 6 are provided on the water-cooled base plate 2.

[0024] In this embodiment, the original central oxygen pipe disc is eliminated, and the guide cone 1 is directly connected to the central oxygen pipe 3. The distribution air ring 4 is installed between the water-cooled base plate 2 and the guide cone 1 to achieve nozzle assembly. The metal hose connected to the water pipe head 5 is secured by the fastener 6 to ensure a firm and reliable connection, allowing operators to easily connect and disassemble. At the same time, due to the elimination of the central oxygen disc, the sealing surface is reduced, resulting in better sealing performance and reducing air leakage during use. After eliminating the central oxygen disc, the cooling intensity is increased by increasing the thickness of the water-cooled base plate 2, significantly extending the service life. Its cooling water interface does not need to pass through the chassis and can be directly connected to the metal hose, reducing the sealing surface, making installation and disassembly quicker and more convenient, and providing a tighter seal, reducing the risk of water and air leakage.

[0025] It should be noted that the central oxygen pipe 3 without the disc is remanufactured by casting or machining, and the thickness of the water-cooled base plate 2 is increased. The water-cooled base plate 2 is provided with channels for circulating cooling water that meet the requirements and fixed threads to ensure good heat dissipation performance, improve the cooling effect of spare parts, and improve the service life and effect of the concentrate nozzle.

[0026] The guide cone 1 has a threaded opening at the top, and the central oxygen tube 3 is adapted to the threaded opening. By connecting the central oxygen tube 3 to the threaded opening, the guide cone 1 and the central oxygen tube 3 can be directly connected.

[0027] In addition, the interior of the guide cone 1, the distribution air ring 4, and the water-cooled base plate 2 are all connected by internal and external threads. The modified central oxygen pipe 3 is used to fix the water-cooled base plate 2 and tighten all components.

[0028] like Figure 2 As shown, there are four water pipe heads 5, which are symmetrically distributed in pairs.

[0029] like Figure 2-3 As shown, the fastener 6 includes a crescent block 61, which is installed on the top of the water-cooled base plate 2 and is fitted around the central oxygen pipe 3. The outer wall of the crescent block 61 has a clearance groove for providing clearance space for multiple water pipe heads 5. The fastener 6 also includes multiple bolts 63. The crescent block 61 has multiple mounting holes 62, and the top of the water-cooled base plate 2 has multiple threaded holes. The multiple bolts 63 pass through the multiple mounting holes 62 and are threadedly connected to the threaded holes.

[0030] The metal hose connected to the water pipe head 5 fits against the inner wall of the clearance groove on the crescent block 61, which can hold the metal hose in place and ensure a firm and reliable connection.

[0031] Working principle:

[0032] When installing the water-cooled base plate 2, fix the distribution air ring 4, assemble the four water pipe heads 5 and four metal hoses of the water-cooled base plate 2 through the cavity, adjust them to the appropriate position, and press them together with the fasteners 6 to ensure a firm and reliable connection, so that the operator can easily connect and disassemble. At the same time, since the central oxygen disc is eliminated, the sealing surface is reduced, the sealing performance is better, and the distribution air leakage during use is reduced. Through this series of quick connection mechanisms, a quick connection is achieved to complete the installation of the concentrate nozzle water-cooled base plate. After assembly, pressure testing and air test are carried out to ensure that there are no errors. It is then ready for use later.

[0033] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A quick-release concentrate nozzle for a flash furnace, comprising a guide cone (1), a water-cooled base plate (2), a central oxygen pipe (3), and a distribution air ring (4), characterized in that: The central oxygen pipe (3) is installed on the top of the water-cooled base plate (2), the distribution air ring (4) is installed between the guide cone (1) and the water-cooled base plate (2), the top of the water-cooled base plate (2) is equipped with multiple water pipe heads (5) for connecting with metal hoses, and fasteners (6) are provided on the water-cooled base plate (2).

2. A quick-release concentrate nozzle for a flash furnace according to claim 1, characterized in that, The top of the guide cone (1) is provided with a threaded opening, and the central oxygen tube (3) is adapted to the threaded opening.

3. A quick-release concentrate nozzle for a flash furnace according to claim 1, characterized in that, The number of water pipe heads (5) is four, and the four water pipe heads (5) are symmetrically distributed in pairs.

4. A quick-release concentrate nozzle for a flash furnace according to claim 1, characterized in that, The fastener (6) includes a crescent block (61), which is installed on the top of the water-cooled base plate (2) and is fitted around the central oxygen pipe (3).

5. A quick-release concentrate nozzle for a flash furnace according to claim 4, characterized in that, The outer wall of the crescent block (61) is provided with a clearance groove for providing clearance space for the plurality of water pipe heads (5).

6. A quick-release concentrate nozzle for a flash furnace according to claim 4, characterized in that, The fastener (6) also includes multiple bolts (63), the crescent block (61) has multiple mounting holes (62), the top of the water-cooled base plate (2) has multiple threaded holes, and the multiple bolts (63) pass through the multiple mounting holes (62) and are threadedly connected to the threaded holes.

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