Gas sealing device for feed opening of bottom blowing furnace

Abstract

The utility model provides a bottom blowing furnace feed opening gas sealing device which comprises a first shell and a second shell, the second shell is arranged on the periphery of the first shell and connected with the first shell, the first shell is a cone, the second shell is a cylinder, a plurality of through holes are formed in the surface of the first shell and evenly distributed, and the through holes are communicated with the first shell. Two through holes are symmetrically formed in the surface of the second shell, thin short pipes are connected into the through holes, two through holes are symmetrically formed in the surface of the second shell, thick short pipes are connected into the through holes, and a flange is arranged on the lower portion of the first shell. The thick short pipe, the second shell, the first shell, the thin short pipe and the flange are utilized to form a container, compressed air enters the second shell through the thick short pipe and enters the first shell through the thin short pipe, air seal is formed in the first shell, a large amount of smoke is prevented from overflowing in the discharging process of the discharging port of the bottom blowing furnace, ore powder at the discharging port is prevented from being agglomerated, and the service life of the bottom blowing furnace is prolonged. And coking is formed to block the feed opening.

Description

Technical Field

[0001] The utility model belongs to the technical field of smelting equipment, in particular to a gas sealing device for a bottom blowing furnace feed port. Background Art

[0002] The bottom-blown furnace is a crucial process in a copper smelter. Mineral powder is distributed through a silo, then fed by a metered feeder and a mobile belt conveyor. The material is then fed into the bottom-blown furnace through a feed port for smelting. This can easily cause material to stick to the bottom-blown furnace feed port, leading to blockage and high furnace temperatures. This can easily cause flue gas to overflow through the port, impacting production and environmental risks. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a gas sealing device for a bottom blowing furnace feed port.

[0004] The technical solution of the utility model is achieved as follows: a gas sealing device for a bottom-blown furnace feed port includes a first shell and a second shell, the second shell is located outside the first shell and connected to the first shell, the first shell is a cone, the second shell is a cylinder, a plurality of through holes are evenly distributed on the surface of the first shell, thin short tubes are connected to the through holes, two through holes are symmetrically provided on the surface of the second shell, thick short tubes are connected to the through holes, a flange is provided at the lower part of the first shell, and the first shell, the second shell, the thick short tube, the flange and the thin short tube form a container;

[0005] Preferably, the angle between the first shell and the thin short tube is 45°;

[0006] Preferably, the inner diameter of the thick short tube is 4 times that of the thin short tube;

[0007] Preferably, the surface of the first shell is provided with 8 through holes.

[0008] The beneficial effects of the utility model are as follows: the utility model utilizes a thick short tube, a second shell, a first shell, a thin short tube, and a flange to form a container; compressed air enters the second shell through the thick short tube and enters the interior of the first shell through the thin short tube, forming an air seal inside the first shell and generating a downward force at the same time; the first shell is connected to the water jacket cover of the bottom blowing furnace discharge port through the flange, further reducing the overflow of flue gas from the bottom blowing furnace discharge port, preventing a large amount of flue gas from overflowing from the bottom blowing furnace discharge port during the discharge process, and preventing ore powder from agglomerating at the discharge port, forming coking and blocking the discharge port. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0010] Figure 1 It is a front view of the utility model;

[0011] Figure 2 It is a cross-sectional view of the present invention.

[0012] Parts Description: 1. First shell; 2. Second shell; 3. Thick short tube; 4. Flange; 5. Thin short tube. DETAILED DESCRIPTION

[0013] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0014] In the description of the present invention, it should be understood that the terms "upper", "lower", "outer", "inner" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0015] Refer to the attached Figure 1-2 A gas sealing device for the discharge port of a bottom-blown furnace comprises a first shell 1 and a second shell 2. The first shell 1 surrounds the second shell 2. The upper surface of the first shell 1 is provided with 8 through holes, which are evenly distributed. A thin short tube 5 is connected to the through holes. The first shell 1 is arranged inside the second shell 2. The first shell 1 is a cone and the second shell 2 is a cylinder. Two through holes are provided on the surface of the second shell 2, which are symmetrically distributed. A thick short tube 3 is connected to the through hole of the second shell and the second shell 2 is connected to the first shell 1. A flange 4 is connected to the lower part of the first shell. The inner diameter of the thick short tube 3 is 4 times that of the thin short tube, and the angle between the thin short tube and the first shell is 45°.

[0016] The container formed by the first shell 1, the second shell 2, the thick short tube 3, the flange 4 and the thin short tube 5 is used to form an air seal with compressed air to prevent smoke from overflowing.

[0017] During use, the device is connected to the water jacket housing of the discharge port. Compressed air is introduced through the thick short tube 3. The compressed air gathers inside the second shell 2 and enters the first shell 1 through the thin short tube 5, forming an air seal inside the first shell 1 to prevent smoke from escaping. The thin short tube 5 forms a 45° angle with the first shell 1, generating a downward force that blows off any mineral powder adhering to the discharge port, preventing excessive coking and clogging of the discharge port.

[0018] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Claims

1. A gas sealing device for the feed port of a bottom blowing furnace, characterized in that The invention comprises a first shell (1) and a second shell (2), wherein the second shell (2) is outside the first shell (1) and connected to the first shell (1), the first shell (1) is a cone, and the second shell (2) is a cylinder, the surface of the first shell (1) is provided with a plurality of through holes which are evenly distributed, and thin short tubes (5) are connected in the through holes, the surface of the second shell (2) is symmetrically provided with two through holes, and thick short tubes (3) are connected in the through holes, the lower part of the first shell (1) is provided with a flange (4), and the first shell (1), the second shell (2), the thick short tube (3), the flange (4) and the thin short tube (5) form a container.

2. A bottom blowing furnace feed port gas sealing device according to claim 1, characterized in that The angle between the first shell (1) and the thin short tube (5) is 45°.

3. A bottom blowing furnace feed port gas sealing device according to claim 1 or 2, characterized in that The inner diameter of the thick short tube (3) is 4 times that of the thin short tube (5).

4. A bottom blowing furnace feed port gas sealing device according to claim 1 or 2, characterized in that The surface of the first shell (1) is provided with 8 through holes.

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