A chute for metal smelting

Abstract

The present invention provides a chute for metal smelting, comprising a chute body, wherein the chute body is provided with a through groove for liquid metal to flow, a protective cover for isolating open flames is arranged above the chute body, and a burner is arranged above the protective cover. In actual use, the present invention can be used in non-ferrous metallurgical processes and in the non-ferrous metal reprocessing industry. The protective cover is located above the liquid metal chute, and the protective cover isolates the open flames and heats the liquid metal in the chute at the same time, thereby playing a role of fire resistance and anti-oxidation, while improving product quality and metal recovery rate.

Description

Technical Field

[0001] The invention relates to the technical field of metal processing, and in particular to a chute used for metal smelting. Background Art

[0002] In the non-ferrous metallurgy or non-ferrous metal reprocessing industry, in order to keep the liquid metal flowing normally in the chute, heating is used above the chute. Considering the cost and heat energy factors, open flame heating is usually used to ensure this. Liquid metal is prone to oxidation, and it is more likely to oxidize when in contact with open flames.

[0003] If the liquid metal oxidizes during the process, the quality of the product will be reduced. In order to ensure the quality of the product, a process of removing the oxide must be added. In the process of removing the oxide, part of the liquid metal will be removed at the same time, thereby reducing the metal recovery rate.

[0004] It can be seen that the technical problems existing in the prior art need to be solved urgently. Summary of the invention

[0005] In order to solve the above technical problems, an embodiment of the present invention provides a chute for metal smelting, including a chute body, the chute body is provided with a through groove for liquid metal to flow, a protective cover for isolating open flames is provided above the chute body, and a burner is provided above the protective cover. In actual use, the present invention can be used in non-ferrous metallurgical processes and non-ferrous metal reprocessing industries, the protective cover is located above the liquid metal chute, the protective cover isolates the open flames and heats the liquid metal in the chute at the same time. Thereby playing a role of fire resistance and anti-oxidation, improving product quality, and at the same time improving metal recovery rate.

[0006] Furthermore, the protective cover is detachably arranged above the chute body. In actual use, after the metal smelting is finished, the protective cover can be removed from the chute body to clean the metal slag inside the chute.

[0007] Furthermore, the protective cover is made of heat-conducting material. In actual use, the protective cover made of heat-conducting material is conducive to absorbing and transferring the heat produced by the burner, so that the metal inside the through groove remains liquid, thereby ensuring the fluidity of the liquid metal and improving the smelting efficiency.

[0008] Furthermore, the protective cover is made of silicate material. In actual use, the protective cover made of silicate material can not only fully absorb and transfer the heat produced by the burner, but also prevent liquid metal from wetting on the protective cover, thereby improving the metal recovery rate and ensuring the permeability of the heat inside the protective cover, which is conducive to the smooth transfer of heat.

[0009] Furthermore, the protective sleeve is an arc-shaped structure, the concave side of the protective sleeve faces the through slot, and the convex side of the protective sleeve faces the nozzle end of the burner. In actual use, according to the size of the cross-section of the chute, the fire-resistant and anti-oxidation material (such as silicate material) adopts an arc design to ensure its strength requirements while avoiding collapse and damage due to self-weight, thermal stress and flame spraying in high temperature for a long time.

[0010] Furthermore, an insulation sleeve is provided above the chute body, the insulation sleeve is located on the outer layer of the protective sleeve, a gap is provided between the insulation sleeve and the protective sleeve, a through hole is provided on the top of the insulation sleeve for inserting the burner nozzle, and the insulation sleeve is filled with insulation material. In actual use, the flame ejected from the burner nozzle can diffuse along the outer wall of the protective sleeve in the gap, thereby fully heating the arc-shaped protective sleeve and making full use of the heat energy.

[0011] Furthermore, a pressure balance port is provided at the bottom of the side wall of the heat preservation sleeve. In actual use, air can enter the pressure balance port, and part of the redundant heat can also flow out from the pressure balance port for other uses.

[0012] Furthermore, the insulation cover comprises a left insulation shell and a right insulation shell arranged opposite to each other, the bottoms of the left insulation shell and the right insulation shell are respectively hinged on both sides of the chute body, and the closed position between the left insulation shell and the right insulation shell is fixed by a fixing device. After use, the fixing device is opened, and the left insulation shell and the right insulation shell are turned outward to open, and then the protective cover can be removed to clean the chute body.

[0013] Furthermore, the fixing device includes a clamping platform and a clamping ring that are engaged with each other, and the clamping platform and the clamping ring are respectively arranged on the left insulation shell and the right insulation shell.

[0014] Beneficial effects of the present invention:

[0015] An embodiment of the present invention provides a chute for metal smelting, including a chute body, wherein the chute body is provided with a through groove for liquid metal to flow, a protective cover for isolating open flames is provided above the chute body, and a burner is provided above the protective cover. In actual use, the present invention can be used in non-ferrous metallurgical processes and in the non-ferrous metal reprocessing industry. The protective cover is located above the liquid metal chute, and the protective cover isolates the open flames and heats the liquid metal in the chute at the same time, thereby playing a role of fire resistance and anti-oxidation, while improving product quality and metal recovery rate.

[0016] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a schematic structural diagram of a chute used for metal smelting in an embodiment of the present invention.

[0019] Figure 2 4 is a top view of the thermal insulation sleeve in the embodiment of the present invention.

[0020] Reference numerals:

[0021] 10. Chute body;

[0022] 20. Through slot;

[0023] 30. Protective cover;

[0024] 40. Burner;

[0025] 50. Insulation cover;

[0026] 51, left insulation shell;

[0027] 52. Right insulation shell;

[0028] 60. Gap;

[0029] 70. Air pressure balance port;

[0030] 80. Through hole. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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, an electrical connection, or mutual communication; 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 the present invention can be understood according to specific circumstances.

[0034] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0035] The disclosure below provides many different embodiments or examples to realize different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0036] Please refer to Figure 1-Figure 2 , Figure 1 It is a schematic structural diagram of a chute for metal smelting in an embodiment of the present invention, the chute for metal smelting comprises a chute body 10, a through groove 20 for liquid metal to flow is provided on the top of the chute body, a protective cover 30 for isolating open flames is provided above the chute body 10, and a burner 40 is provided above the protective cover 30.

[0037] In some preferred embodiments, the protective cover 30 is detachably disposed above the chute body 10 .

[0038] In some preferred embodiments, the protective cover 30 is made of a thermally conductive material. Specifically, the protective cover 30 can be made of a silicate material.

[0039] In some other preferred embodiments, the protective cover 30 is an arc-shaped structure, the concave side of the protective cover 30 faces the through groove 20 , and the convex side of the protective cover 30 faces the nozzle end of the burner 40 .

[0040] In some preferred embodiments, a heat preservation sleeve 50 is further provided above the chute body 10, the heat preservation sleeve 50 is located on the outer layer of the protective sleeve 30, and a gap 60 is provided between the heat preservation sleeve 50 and the protective sleeve 30, and a through hole 80 for inserting the nozzle of the burner 40 is provided at the top of the heat preservation sleeve 50; the heat preservation sleeve 50 is filled with heat preservation material. Specifically, a pressure balance port 70 is provided at the bottom of the side wall of the heat preservation sleeve 50.

[0041] Preferably, the insulation cover 50 includes a left insulation shell 51 and a right insulation shell 52 that are arranged opposite to each other, the bottoms of the left insulation shell 51 and the right insulation shell 52 are respectively hinged on both sides of the chute body 10, and the closed position between the left insulation shell 51 and the right insulation shell 52 is fixed by a fixing device. Specifically, the fixing device includes a clamping platform and a clamping ring that are engaged with each other, and the clamping platform and the clamping ring are respectively arranged on the left insulation shell 51 and the right insulation shell 52.

[0042] The working principle of the present invention is:

[0043] The present invention mainly adds a layer of fire-resistant and anti-oxidation insulating material between the chute body 10 and the open flame, and designs the fire-resistant and anti-oxidation material in an arc shape according to the size of the cross-section of the chute, thereby ensuring its strength requirements and avoiding collapse and damage due to self-weight, thermal stress and flame spraying in a long-term high temperature, achieving the goal of not affecting the liquid metal's absorption of the heat energy of the open flame and successfully avoiding the oxidation of the liquid metal. The cleanliness of the liquid metal is ensured, and the quality of the product and the metal yield are improved.

[0044] In the description of this specification, the description with reference to the terms "one embodiment", "certain embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0045] In summary, although the present invention has been disclosed as above in terms of preferred embodiments, the above preferred embodiments are not intended to limit the present invention. A person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined in the claims.

Claims

1. A chute for metal smelting, characterized in that: It comprises a chute body (10), the top of which is provided with a through groove (20) for liquid metal to flow, a protective cover (30) for isolating open flames is provided above the chute body (10), and a burner (40) is provided above the protective cover (30); The protective cover (30) is detachably arranged above the chute body (10); The protective sleeve (30) is an arc-shaped structure, the concave side of the protective sleeve (30) faces the through groove (20), and the convex side of the protective sleeve (30) faces the nozzle end of the burner (40); A heat-insulating sleeve (50) is also provided above the chute body (10), the heat-insulating sleeve (50) is located on the outer layer of the protective sleeve (30), a gap (60) is provided between the heat-insulating sleeve (50) and the protective sleeve (30), and a through hole (80) for inserting a nozzle of the burner (40) is provided at the top of the heat-insulating sleeve (50); the interior of the heat-insulating sleeve (50) is filled with heat-insulating material; The bottom of the side wall of the thermal insulation sleeve (50) is provided with an air pressure balance port (70); The insulation cover (50) comprises a left insulation shell (51) and a right insulation shell (52) which are arranged opposite to each other, the bottoms of the left insulation shell (51) and the right insulation shell (52) are respectively hinged on two sides of the chute body (10), and the closed position between the left insulation shell (51) and the right insulation shell (52) is fixed by a fixing device; The fixing device comprises a clamping platform and a clamping ring that are engaged with each other, and the clamping platform and the clamping ring are respectively arranged on the left heat-insulating shell (51) and the right heat-insulating shell (52).

2. A chute for metal smelting according to claim 1, characterized in that: The protective sleeve (30) is made of heat-conducting material.

3. A chute for metal smelting according to claim 2, characterized in that: The protective cover (30) is made of silicate material.

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