Zinc melting furnace for electric furnace zinc smelting

Abstract

The utility model belongs to the technical field of electric furnace zinc smelting, and relates to a zinc smelting furnace for electric furnace zinc smelting, which comprises a furnace body, a hearth, furnace plates, a crucible and a flue, the hearth is positioned in the furnace body, the furnace plates are arranged in a step shape, the crucible is positioned behind the furnace plates, the flue penetrates through the lower part of the crucible and extends out of the furnace body, a furnace door is arranged on the outer side of the hearth, and a coal feeding hole and an ignition nozzle are arranged on the uppermost furnace plate. According to the utility model, the furnace plates are arranged in the hearth from outside to inside in a downward stepped manner, so that the combustion efficiency of coal on the furnace plates can be improved, and the temperature in the hearth can be rapidly increased and stabilized in a temperature range required by smelting; the furnace plate installed in a sliding mode can be pulled out, coal ash left after combustion on the furnace plate is rapidly removed, it is ensured that coal on the furnace plate is fully combusted, the stability of the temperature in a hearth is improved, and the smelting efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric furnace zinc smelting, and particularly relates to a zinc-making furnace for electric furnace zinc smelting. Background Art

[0002] Currently, pyrometallurgical zinc smelting uses a zinc-making furnace to convert zinc-containing ore or dust into zinc metal. During the smelting process, zinc reduction and purification occur in the furnace, ultimately resulting in zinc products of varying purities.

[0003] When the zinc-making furnace used in the prior art burns coal to smelt raw materials, the coal is piled in the furnace combustion chamber. The piled coal is prone to incomplete combustion during combustion, making it difficult to maintain a constant temperature in the furnace at the temperature required for smelting, which is not conducive to the long-term stable operation of the production process. Utility Model Content

[0004] In order to solve the problems existing in the above-mentioned prior art, the utility model provides a zinc-making furnace for electric zinc smelting, which can stably smelt zinc metal for a long time.

[0005] In order to achieve the above technical objectives, the present invention adopts the following technical solutions:

[0006] A zinc-making furnace for electric zinc smelting comprises a furnace body, a furnace chamber, a furnace plate, a crucible and a flue. The furnace chamber is provided in the furnace body, a coal feeding hole is provided on the uppermost furnace plate in the furnace chamber, an ignition nozzle is provided at the outlet of the coal feeding hole, the furnace plates are arranged in a downward stepped manner from the outside to the inside in the furnace chamber, the crucible is arranged behind the furnace plate in the furnace chamber, a feeding port is provided above the crucible and connected to the outside of the furnace body, and the flue is connected from the furnace chamber through the bottom of the crucible to the outside of the furnace body behind the crucible.

[0007] Furthermore, the furnace body is provided with a furnace door outside the furnace chamber.

[0008] Furthermore, the furnace plate is movably installed in the furnace through guide rails.

[0009] Furthermore, an air damper is provided at the outlet of the flue.

[0010] According to the above technical solution, the beneficial effect of the utility model is that: the utility model sets furnace plates arranged in a downward step from the outside to the inside in the furnace, which can increase the combustion efficiency of the coal on the furnace plates, so that the temperature in the furnace can be quickly increased and stabilized within the temperature range required for smelting. The sliding furnace plates can be pulled out to quickly remove the coal ash remaining on the furnace plates after combustion, ensuring the full combustion of the coal on the furnace plates, improving the stability of the temperature in the furnace, and improving the smelting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the overall structure of a zinc-making furnace used in electric zinc smelting;

[0012] Figure 2 This is a schematic diagram of the internal structure of a zinc-making furnace used in electric furnace zinc smelting;

[0013] 1-furnace body, 11-furnace door, 2-furnace chamber, 21-coal feeding hole, 22-ignition nozzle, 3-furnace plate, 31-guide rail, 4-crucible, 41-feeding port, 5-flue, 51-air door. DETAILED DESCRIPTION

[0014] In order to more clearly illustrate the technical solution implemented by the present invention, the present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0015] See Figure 1-2 , a zinc-making furnace for electric zinc smelting, comprising a furnace body 1, a furnace chamber 2, a furnace plate 3, a crucible 4, and a flue 5. The furnace chamber 2 is opened in the furnace body 1, and the furnace plates 3 are arranged in a downward stepped manner from the outside to the inside in the furnace chamber 2. A coal feeding hole 21 is opened on the uppermost furnace plate 3 in the furnace chamber 2, and an ignition nozzle 22 is provided at the outlet of the coal feeding hole 21. The crucible 4 is arranged behind the furnace plate 3 in the furnace chamber 2, and a feeding port 41 is provided above the crucible 4 to connect to the outside of the furnace body 1. The flue 5 is connected from the furnace chamber 2 to the outside of the furnace body 1 behind the crucible 4 through the bottom of the crucible 4. The ignition nozzle 22 at the outlet of the coal feeding hole 21 ignites the coal and then throws it onto the furnace plate 3, so that the coal is fully burned in the furnace chamber 2 to maintain the temperature inside the chamber.

[0016] See Figure 1-2 The furnace body 1 is provided with a furnace door 11 on the outside of the furnace 2. The furnace door 11 can keep the heat in the furnace 2, reduce heat dissipation, and keep the temperature in the furnace 2 stable.

[0017] See Figure 1-2 The furnace plate 3 is installed in the furnace 2 through the guide rail 31. The furnace plate 3 can be slid and removed from the guide rail 31. After the furnace plate 3 is removed, it is convenient to clean the coal ash remaining after the coal is burned, so as to avoid affecting the combustion efficiency of the coal.

[0018] See Figure 1-2 The outlet of the flue 5 is provided with an air damper 51. The opening of the air damper 51 is adjusted to control the air circulation in the furnace so that the coal can be fully burned, saving energy and improving the smelting efficiency.

[0019] According to the above embodiment, the working process of the utility model is as follows:

[0020] Start the ignition nozzle 22, and feed coal onto the furnace plate 3 through the coal feeding hole 21. The ignited coal is stacked step by step on the furnace plate 3. The furnace door 11 is closed, and molten zinc liquid and zinc blocks to be melted are fed into the crucible 4 through the feeding port 41. The zinc blocks are melted in the crucible 4. The flue gas after the coal combustion passes through the flue 5 under the crucible 4 and is discharged from the furnace body 1 from the rear of the crucible 4. The air damper 51 at the outlet of the flue 5 is adjusted by opening to control the temperature in the furnace 2 so that the raw materials in the crucible 4 can be fully melted, thereby achieving a stable smelting process. When the flue 5 discharges the flue gas generated by the coal combustion, the heat in the flue gas is also transferred to the vicinity of the crucible 4 through the flue 5, so that the heat distribution in the crucible 4 is more uniform, thereby stabilizing the smelting process.

[0021] The embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Numerous modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A zinc-making furnace for electric zinc smelting, characterized in that: The invention comprises a furnace body (1), a furnace (2), a furnace plate (3), a crucible (4), and a flue (5), wherein the furnace (2) is opened in the furnace body (1), a coal feeding hole (21) is opened on the uppermost furnace plate (3) in the furnace (2), an ignition nozzle (22) is provided at the outlet of the coal feeding hole (21), the furnace plates (3) are arranged in a downward step from the outside to the inside in the furnace (2), the crucible (4) is arranged behind the furnace plate (3) in the furnace (2), a feeding port (41) is provided above the crucible (4) and is connected to the outside of the furnace body (1), and the flue (5) is connected from the furnace (2) through the bottom of the crucible (4) to the outside of the furnace body (1) behind the crucible (4).

2. The electro-zinc furnace for zinc smelting according to claim 1, characterized in that: The furnace body (1) is provided with a furnace door (11) outside the furnace chamber (2).

3. The electrolytic zinc furnace for electric zinc smelting according to claim 1, characterized in that: The furnace plate (3) is movably installed in the furnace (2) via guide rails.

4. The electrolytic zinc furnace for electric zinc smelting according to claim 1, characterized in that: An air damper (51) is provided at the outlet of the flue (5).

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