Chute tail end for flash blowing

Abstract

The utility model discloses a chute tail end for flash blowing. The chute tail end comprises an external steel shell sleeve and a chute lining, the external steel shell sleeve comprises a placing groove and a limiting block; the four limiting blocks are installed on the inner sides of the two ends of the containing groove correspondingly. The chute lining is provided with four protruding blocks which are installed on the two sides of the outer portion of one end of the chute lining respectively. The size of the chute lining is matched with that of the placing groove; the convex block is matched with the limiting block; the chute lining is connected with the containing groove through the protruding blocks and the limiting blocks. According to the utility model, the external steel shell sleeve is quickly connected with the chute lining through the limiting block and the convex block, meanwhile, the dismounting is convenient, the installation and maintenance efficiency is improved, the labor intensity is reduced, and the safety and the convenience of the maintenance work are integrally and effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of flash refining technology, specifically to a chute end for flash refining. Background Technology

[0002] Flash smelting is a highly efficient copper smelting technology. The basic process involves water quenching matte produced by different smelting processes, followed by drying, grinding, and then smelting it into crude copper using high-concentration oxygen-enriched air in a flash smelting furnace. As a modern copper smelting method, it has advantages such as high production efficiency, low energy consumption, and low pollution.

[0003] However, in copper flash smelting systems, due to the corrosive effect of the high-temperature melt, the traditional flash furnace end chute, with its closed and fixed design, needs to be replaced and maintained regularly when faced with the corrosive effect of the high-temperature melt. However, the closed and fixed design of the end chute has the problems of difficult replacement and short service life, and frequent replacement increases maintenance costs and the risk of production interruption. Utility Model Content

[0004] The purpose of this utility model is to provide a chute end for flash smelting that is easy to install, disassemble, maintain, and has a long service life, in order to solve the technical problem that the existing flash smelting furnace end chute is a closed and fixed design, which makes it difficult to replace and maintain after the chute body is corroded, resulting in a short service life.

[0005] To solve the above technical problems, the solution adopted by this utility model is as follows:

[0006] A chute end for flash blowing includes an outer steel shell and a chute liner; the outer steel shell includes a placement groove and limiting blocks; four limiting blocks are provided, respectively installed on the inner sides of both ends of the placement groove; the chute liner has four protrusions, respectively installed on the outer sides of one end of the chute liner; the size of the chute liner matches the placement groove; the protrusions match the limiting blocks; the chute liner is connected to the placement groove through the protrusions and the limiting blocks. After one end of the outer steel shell sleeve is connected and fixed to the front chute of the flash furnace, the chute lining is hoisted onto the placement slot of the outer steel shell sleeve. It is connected and fixed by limiting blocks and protrusions. There are four protrusions, which are installed on the outer sides of one end of the chute lining and match the limiting blocks. When the outer steel shell sleeve is connected to the front chute, the limiting block at one end of the outer steel shell sleeve and the front chute can directly form a groove that matches the protrusion. At the same time, the limiting block at the other end of the outer steel shell sleeve fits against the protrusion to limit the chute lining. The gap between the outer steel shell sleeve and the chute lining is filled with high-alumina low-cement steel fiber castable. High-alumina low-cement steel fiber castable is an advanced refractory material with excellent wear resistance and thermal shock resistance.

[0007] Furthermore, the outer steel shell sleeve is provided with a connector; the connector is fixedly installed at one end of the outer steel shell; the outer steel shell sleeve is connected to the front chute of the blowing furnace through the connector. The connection between the outer steel shell sleeve and the front chute of the blowing furnace via the connector allows for easy installation and disassembly of the outer steel shell sleeve, facilitating maintenance and replacement, and also facilitating the operation of the chute lining. The connector is U-shaped, ensuring a secure connection between the outer steel shell sleeve and the front chute of the blowing furnace.

[0008] Furthermore, the chute liner includes a straight groove and an arc groove; the straight groove and the arc groove are integrally formed; the straight groove is connected to the placement tank. The straight groove of the chute liner guides the melt flow to the arc groove, which disperses and reduces the impact and wear of the melt on the inner wall of the chute, while reducing the resistance of the melt during flow and improving flow efficiency. The integral formation of the arc groove and the straight groove, connected to the placement tank through the straight groove, ensures ease of installation.

[0009] Furthermore, the straight trough is equipped with pre-embedded lifting lugs; four pre-embedded lifting lugs are provided, respectively installed on both sides of the straight trough. By using the four pre-embedded lifting lugs on both sides of the straight trough, a uniform stress point can be ensured during the hoisting of the chute lining. This allows the chute lining to be installed into or removed from the placement slot of the outer steel shell sleeve, reducing the risk of damage caused by uneven stress, thus achieving a stable and safe hoisting process. Moreover, the pre-embedded lifting lugs allow for quick removal of the chute lining, facilitating replacement or maintenance, and improving maintenance efficiency and convenience.

[0010] The outer steel casing measures 820*600mm and is made of high-chromium heat-resistant cast iron; the chute lining is made of silicon carbide. The high-chromium heat-resistant cast iron outer steel casing and the silicon carbide chute lining possess excellent heat resistance, oxidation resistance, wear resistance, and corrosion resistance, ensuring the stability and reliability of the device during high-temperature molten material transport. This also reduces the frequency of replacements due to wear and corrosion, thereby lowering long-term operating costs.

[0011] The working principle of this utility model is as follows:

[0012] After one end of the outer steel shell sleeve is connected and fixed to the front chute of the flash furnace through the connector, the chute lining is hoisted onto the placement slot of the outer steel shell sleeve through the pre-embedded lifting lugs. The chute lining is then limited by the connection of the limiting block and the protrusion. The gap between the outer steel shell sleeve and the chute lining is filled with high-alumina low-cement steel fiber castable material, and then the melt discharge work can be carried out.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This utility model allows for quick connection between the external steel shell and the chute lining via limiting blocks and protrusions, while also facilitating disassembly. This improves the efficiency of installation and maintenance, reduces labor intensity, and effectively enhances the safety and convenience of maintenance work. The external steel shell and the chute lining are made of heat-resistant and wear-resistant materials, which can effectively resist the erosion and wear of the molten material, protect the chute from damage caused by high-temperature molten material, and thus extend the service life of the device.

[0015] 2. One end of the external steel shell sleeve of this utility model is connected to the front chute of the blowing furnace through a connector, which realizes convenient installation and disassembly of the whole device. At the same time, the chute lining is matched with the limiting block and protrusion of the external steel shell sleeve through four pre-embedded lifting lugs, which facilitates quick hoisting and positioning and reduces installation and maintenance time. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the external steel shell structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the chute lining structure of this utility model.

[0019] In the diagram: 1. External steel shell sleeve; 2. Chute lining; 3. Placement slot; 4. Limiting block; 5. Protrusion; 6. Connector; 7. Embedded lifting lug; 8. Straight chute; 9. Arc chute. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0021] 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. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" 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.

[0022] The following is a detailed description of the end of a chute for flash refining according to the present invention, with reference to the accompanying drawings: Example 1

[0023] A chute end for flash blowing includes an outer steel shell sleeve 1 and a chute liner 2; the outer steel shell sleeve 1 includes a placement groove 3 and a limiting block 4; four limiting blocks 4 are provided, respectively installed on the inner sides of both ends of the placement groove 3; the chute liner 2 is provided with four protrusions 5, respectively installed on the outer sides of one end of the chute liner 2; the size of the chute liner 2 matches the placement groove 3; the protrusions 5 match the limiting blocks 4; the chute liner 2 is connected to the placement groove 3 through the protrusions 5 and the limiting blocks 4.

[0024] The working principle of this embodiment is as follows:

[0025] After connecting and fixing one end of the outer steel shell sleeve 1 to the front chute of the flash furnace, the chute liner 2 is hoisted onto the placement slot 3 of the outer steel shell sleeve 1. It is connected by the limiting block 4 and the protrusion 5 to limit the chute liner 2. The gap between the outer steel shell sleeve 1 and the chute liner 2 is filled with high-alumina low-cement steel fiber castable material, and the melt discharge can then be carried out. The outer steel shell sleeve 1 is made of high-chromium heat-resistant cast iron, and the chute liner 2 is made of silicon carbide, which ensures the stability and reliability of the device in the process of high-temperature melt transportation. Example 2

[0026] The difference from Embodiment 1 is that the outer steel shell sleeve 1 is provided with a connector 6; the connector 6 is fixedly installed at one end of the outer steel shell; the outer steel shell sleeve 1 is connected to the front end chute of the blowing furnace through the connector 6; the chute lining 2 includes a straight groove 8 and an arc groove 9; the straight groove 8 and the arc groove 9 are integral; the straight groove 8 is connected to the placement groove 3; the straight groove 8 is provided with a pre-embedded lifting lug 7; there are four pre-embedded lifting lugs 7, which are respectively installed on both sides of the straight groove 8.

[0027] The external steel shell sleeve 1 is connected to the front chute of the blowing furnace through the connector 6, which makes it easy to install and disassemble the external steel shell sleeve 2. After the external steel shell sleeve 2 is installed, the straight chute 8 is hoisted onto the placement slot 3 of the external steel shell sleeve 1 through the four pre-embedded lifting lugs 7 on both sides of the straight chute 8. The straight chute 8 is responsible for guiding the melt to flow to the arc chute 9. The arc chute 9 can reduce the resistance of the melt during the flow process and improve the flow efficiency. The arc chute 9 and the straight chute 8 are integrated and connected to the placement slot through the straight chute, which ensures the convenience of installation.

[0028] The working principle of this embodiment is the same as that of Embodiment 1.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A chute end for flash blowing, characterized in that: It includes an outer steel shell sleeve (1) and a chute liner (2); the outer steel shell sleeve (1) includes a placement groove (3) and a limiting block (4); the limiting block (4) is provided with four, which are respectively installed on the inner sides of both ends of the placement groove (3); the chute liner (2) is provided with four protrusions (5), which are respectively installed on the outer sides of one end of the chute liner (2); the size of the chute liner (2) matches the placement groove (3); the protrusions (5) match the limiting block (4); the chute liner (2) is connected to the placement groove (3) through the protrusions (5) and the limiting block (4).

2. The end of a chute for flash blowing according to claim 1, characterized in that: The outer steel shell sleeve (1) is provided with a connector (6); the connector (6) is fixedly installed at one end of the outer steel shell; the outer steel shell sleeve (1) is connected to the front chute of the blowing furnace through the connector (6).

3. The end of a chute for flash blowing according to claim 1, characterized in that: The chute liner (2) includes a straight groove (8) and an arc groove (9); the straight groove (8) and the arc groove (9) are integral; the straight groove (8) is connected to the placement groove (3).

4. The end of a chute for flash blowing according to claim 3, characterized in that: The straight groove (8) is provided with pre-embedded lifting lugs (7); there are four pre-embedded lifting lugs (7), which are respectively installed on both sides of the straight groove (8).

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