Scouring-resistant device for converter mouth of copper smelting converter

Abstract

The utility model relates to a scrubbing-resistant device for a converter mouth of a copper smelting converter, and relates to the technical field of converter smelting. A scrubbing-resistant device for a converter mouth of a copper smelting converter is mounted at a lower converter mouth of the converter and comprises a protective plate and a slag baffle. The slag stopping box body is formed by the internal space formed by the slag stopping plate and the protective plate, the anti-collision capacity of the slag stopping plate can be enhanced by arranging the reinforcing baffle in the slag stopping box body, the durability is improved, meanwhile, the length of the lower furnace opening can be increased by filling the slag stopping box body with the fireclay, the magnesia and the brine castable, and the service life of the lower furnace opening is prolonged. Slag and crude copper washing and groove pulling are slowed down, the durability of the lower furnace mouth is improved, metal copper loss in the production process is avoided, and the situation that the labor intensity of workers is increased due to frequent furnace mouth repairing is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of converter smelting, and in particular to a copper smelting converter furnace mouth washing resistant device. Background Art

[0002] In copper smelting production, PS converters are often used for matte blowing. During the matte blowing process, copper smelting raw materials are processed by PS converters, which will produce intermediate products such as crude copper and sulfur dioxide. At the same time, hot slag, crude copper and other products in the production process need to be discharged from the furnace mouth to the slag bag.

[0003] The furnace mouth of the converter is usually built with refractory bricks to resist high temperature and chemical erosion. However, during the production process, due to the need for long-term furnace mouth cleaning, driving feeding and other operations, it will inevitably cause external impact on the furnace mouth surface, forming an impact load, and due to its high impact energy, it accelerates the generation of fatigue, and the impact fatigue resistance of the furnace mouth decreases, which will cause the furnace mouth steel structure to break. After the furnace mouth steel structure breaks, repair work is required, which will greatly affect the normal operation of production and smelting work.

[0004] Secondly, during the production process, the crude copper and hot slag produced by smelting will wash the furnace mouth, causing grooves at the furnace mouth. When "grooves" appear at the furnace mouth and are not repaired in time, during a slag discharge cycle, matte will flow out from the "groove" position of the lower furnace mouth into the slag bag, which will increase the copper content in the converter slag. In addition, the flow of white matte along the groove will also affect the direct recovery rate of the converter. At the same time, the frequent repair of the furnace mouth greatly increases the labor intensity of the operators. Utility Model Content

[0005] In order to solve or partially solve the problems existing in the related technology, the present application provides a copper smelting converter furnace mouth washing device, which can improve the durability of the lower furnace mouth, reduce the grooving of the lower furnace mouth, and reduce the labor intensity of personnel.

[0006] The present application provides a copper smelting converter furnace mouth washing device, which is installed at the lower furnace mouth of the converter and is characterized in that it comprises: a guard plate and a slag blocking plate;

[0007] The guard plate is arranged and installed at the lower furnace opening of the converter, and the top edge of the guard plate is an arc edge, and the arc corresponds to the arc of the lower furnace opening;

[0008] The slag blocking plate is arranged and installed on the guard plate, and the internal space formed by the slag blocking plate and the guard plate forms a slag blocking box body;

[0009] At least one reinforcing baffle is arranged inside the slag baffle box;

[0010] The interior of the slag retaining box is filled with fire clay, magnesia and brine castables.

[0011] Optionally, in some embodiments of the present application:

[0012] A plurality of claw nails are arranged in an array on the front wall of the guard plate;

[0013] Optionally, in some embodiments of the present application:

[0014] A plurality of claw nails are arranged in an array on the front and rear side walls of the reinforced baffle.

[0015] Optionally, in some embodiments of the present application:

[0016] The slag retaining plate is provided with a hanging ear piece.

[0017] Optionally, in some embodiments of the present application:

[0018] Positioning plates are arranged and installed on the left and right side walls of the guard plate, and positioning holes are arranged on the positioning plates.

[0019] The technical solution provided by this application may have the following beneficial effects:

[0020] The present application forms a slag retaining box body through the internal space composed of a slag retaining plate and a guard plate, and by arranging a reinforced baffle inside the slag retaining box body, the impact resistance of the slag retaining plate can be enhanced and the durability can be improved. At the same time, by filling the interior of the slag retaining box body with fire clay, magnesia sand and brine castables, the length of the lower furnace mouth can be increased, the washing and grooving of slag and crude copper can be slowed down, the durability of the lower furnace mouth can be improved, the loss of metal copper during the production process can be avoided, and the frequent repair of the furnace mouth that increases the labor intensity of personnel can be avoided.

[0021] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0023] Figure 1 2 is a schematic diagram of the front view of the structure of the copper smelting converter furnace mouth washing device in the embodiment of the present application;

[0024] Figure 2 It is a rear structural schematic diagram of the copper smelting converter furnace mouth washing device in an embodiment of the present application.

[0025] Figure numerals: 1-guard plate, 101-positioning plate, 1011-positioning hole, 2-slag blocking plate, 201-hanging ear piece, 3-reinforced baffle plate, 4-claw nail, 5-slag blocking box body. DETAILED DESCRIPTION

[0026] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0027] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0028] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0029] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, 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 the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] The furnace mouth of the converter is usually built with refractory bricks to resist high temperature and chemical erosion. However, during the production process, due to the need for long-term furnace mouth cleaning, driving feeding and other operations, it will inevitably cause external impact on the furnace mouth surface, forming an impact load, and due to its high impact energy, it accelerates the generation of fatigue, and the impact fatigue resistance of the furnace mouth decreases, which will cause the fracture of the furnace mouth steel structure. After the fracture of the furnace mouth steel structure, repair work is required, which will greatly affect the normal operation of production and smelting work. Secondly, during the production process, the crude copper and hot slag produced by smelting will wash the furnace mouth, resulting in the furnace mouth groove. When the "groove" appears at the furnace mouth and is not repaired in time, during a cycle of slag discharge, the matte will flow out from the "groove" position of the lower furnace mouth into the slag bag, which will increase the copper content in the converter slag. In addition, the white matte flows out along the groove, which will also affect the converter direct recovery rate. At the same time, the frequent repair of the furnace mouth greatly increases the labor intensity of the operator.

[0031] In view of the above problems, an embodiment of the present application provides a copper smelting converter furnace mouth washing device, which can improve the durability of the lower furnace mouth, reduce the grooving of the lower furnace mouth, and reduce the labor intensity of personnel.

[0032] The technical solution of the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0033] Figure 1 2 is a schematic diagram of the front view of the structure of the copper smelting converter furnace mouth washing device in the embodiment of the present application;

[0034] Figure 2 It is a rear structural schematic diagram of the copper smelting converter furnace mouth washing device in an embodiment of the present application.

[0035] See also Figure 1-2 , a copper smelting converter furnace mouth washing device, installed at the lower furnace mouth of the converter, comprising: a guard plate 1 and a slag blocking plate 2;

[0036] The guard plate 1 is arranged and installed at the lower furnace mouth of the converter, and the top edge of the guard plate 1 is an arc edge, and the curvature corresponds to the curvature of the lower furnace mouth; the guard plate 1 is made of stainless steel, and the guard plate 1 is fixedly installed at the lower part of the furnace mouth of the converter by welding, and the top edge of the guard plate 1 is close to the lower furnace mouth of the converter.

[0037] The slag blocking plate 2 is arranged and installed on the guard plate 1, and the internal space formed by the slag blocking plate 2 and the guard plate 1 forms a slag blocking box body 5; the slag blocking plate 2 is made of stainless steel, and the slag blocking plate 2 is fixedly installed on the guard plate 1 by welding.

[0038] Four reinforcing baffles 3 are arranged inside the slag blocking box body 5; the reinforcing baffles 3 are made of stainless steel and are installed and fixed by welding. The reinforcing baffles 3 are arranged to enhance the anti-collision ability of the slag blocking plate 2 and improve durability.

[0039] The interior of the slag retaining box body 5 is filled with fire clay, magnesia sand and brine castable.

[0040] By filling the slag retaining box 5 with fire clay, magnesia and brine castables, the filling of fire clay, magnesia and brine castables can form a protective layer, while increasing the length of the lower furnace mouth, slowing down the washing and grooving of slag and crude copper, improving the durability of the lower furnace mouth, avoiding the loss of metallic copper during the production process, and avoiding frequent repairs of the furnace mouth that increase the labor intensity of personnel.

[0041] Specifically, a plurality of claw nails 4 are arranged in an array on the front wall of the guard plate 1, and a plurality of claw nails 4 are arranged in an array on the front and rear side walls of the reinforcing baffle plate 3. The claw nails 4 are fixedly installed by welding, and each claw nail 4 is spaced 50 mm apart.

[0042] By arranging mounting claws 4 on the guard plate 1, after the fire clay, magnesia sand and brine castables solidify, the fire clay, magnesia sand and brine castables can be effectively reinforced and stabilized, and are not easy to loosen or fall off, thereby improving their effect and durability inside the slag retaining box body 5.

[0043] Specifically, a hanging ear piece 201 is provided and installed on the slag blocking plate 2 .

[0044] By providing the hanging ear piece 201, it is possible to facilitate hoisting, facilitate the implementation of the installation work, improve the efficiency of the installation construction, and also ensure the safety of the installation.

[0045] Specifically, a positioning plate 101 is installed on the left and right side walls of the guard plate 1 , and a positioning hole 1011 is provided on the positioning plate 101 .

[0046] By providing the positioning plate 101, positioning can be performed according to the positioning holes 1011 during installation, thereby avoiding position deviation or incorrect installation and ensuring the accuracy of the installation position.

[0047] The embodiments of the present application include the following beneficial effects:

[0048] The present application forms a slag blocking box body 5 through the internal space composed of the slag blocking plate 2 and the guard plate 1. By arranging a reinforcing baffle 3 inside the slag blocking box body 5, the impact resistance of the slag blocking plate 2 can be enhanced and the durability can be improved. At the same time, by filling the interior of the slag blocking box body 5 with fire clay, magnesia sand and brine castables, the length of the lower furnace mouth can be increased, the washing and grooving of slag and crude copper can be slowed down, the durability of the lower furnace mouth can be improved, the loss of metal copper in the production process can be avoided, and the frequent repair of the furnace mouth that increases the labor intensity of personnel can be avoided.

[0049] Finally, it should be noted that, in this article, relationships such as first and second, etc. are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms include, include or any other variations are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0050] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A copper smelting converter mouth washing device, installed at the lower mouth of the converter, characterized in that: include: A guard plate (1) and a slag retaining plate (2); The guard plate (1) is arranged and installed at the lower furnace opening of the converter, and the top edge of the guard plate (1) is an arc edge, and the arc corresponds to the arc of the lower furnace opening; The slag blocking plate (2) is arranged and mounted on the guard plate (1), and the internal space formed by the slag blocking plate (2) and the guard plate (1) forms a slag blocking box body (5); At least one reinforcing baffle plate (3) is arranged inside the slag baffle box (5); The interior of the slag retaining box body (5) is filled with fire clay, magnesia sand and brine castable.

2. The copper smelting converter furnace mouth washing device according to claim 1 is characterized in that: A plurality of claw nails (4) are arranged in an array on the front wall of the guard plate (1).

3. The copper smelting converter mouth washing device according to claim 1 or 2, characterized in that: A plurality of claw nails (4) are arranged in an array on the front and rear side walls of the reinforcing baffle (3).

4. The copper smelting converter mouth washing device according to claim 3 is characterized in that: The slag retaining plate (2) is provided with a hanging ear piece (201) installed thereon.

5. The copper smelting converter mouth washing device according to claim 4 is characterized in that: Positioning plates (101) are installed on the left and right side walls of the guard plate (1); and positioning holes (1011) are provided on the positioning plates (101).

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