Novel anode furnace oxidation-reduction gun connecting structure

Abstract

The utility model relates to a novel anode furnace redox gun connecting structure which comprises a connector base, a loop nut and a gun body, a connecting hole is formed in the connector base, and one end of the connecting hole is a variable-diameter hole; the aperture of the variable-diameter hole is gradually increased from inside to outside; an external thread is arranged at one end, close to the reducing hole, of the joint seat and is in threaded connection with the loop nut; the loop nut is arranged on the gun body in a sleeving manner; the end part of the gun body is inserted into the reducing hole; a fastening clamping ring is arranged between the reducing hole and the gun body; an extension part is arranged at one end, far away from the end part of the gun body, of an inner hole of the loop nut; and the extension part extends inwards and is in clearance fit with the gun body. According to the utility model, the joint seat is matched with the fastening retainer ring and the nut, so that the time for dredging the oxidation-reduction gun is effectively shortened, the normal operation of production operation is ensured, and meanwhile, the production cost is greatly saved. The production stability and safety of the anode furnace are improved, and continuous operation of production is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of anode copper smelting technology, and specifically relates to a novel connection structure for an anode furnace oxidation-reduction gun. Background Technology

[0002] Currently, in anode copper smelting, the oxidation-reduction operation of the anode furnace requires the introduction of gas through an oxidation-reduction lance. The front part of the lance is directly submerged in the hot copper material. Due to the prolonged exposure to high-temperature molten metal, the lance body inside the molten metal gradually burns away, and the lance barrel is prone to blockage, severely impacting production efficiency. Traditional oxidation-reduction lances are mostly designed as a single piece, and are threadedly connected to the gas source pipe. For example, Chinese patent CN217709625U discloses an anode furnace oxidation-reduction lance device, which requires unscrewing the front section of the lance barrel for replacement. In actual production, due to the high frequency of lance changes, the tight threaded connection of the lance head makes disassembly difficult, resulting in long lance change times and high labor intensity. Utility Model Content

[0003] The purpose of this invention is to provide a novel connection structure for the oxidation-reduction gun of an anode furnace, which can shorten the time for unclogging the oxidation-reduction gun and ensure the normal operation of production.

[0004] To achieve the above objectives, the present invention employs a novel connection structure for an anode furnace oxidation-reduction lance, comprising a connector seat, a loose nut, and a lance body.

[0005] The connector seat has an axially formed connecting hole, one end of which is a reducing hole; the diameter of the reducing hole gradually increases from the inside to the outside; the end of the connector seat near the reducing hole has an external thread, which is threadedly connected to a slip-fit ​​nut; the slip-fit ​​nut is fitted onto the gun body; the end of the gun body is inserted into the reducing hole; a retaining ring is provided between the reducing hole and the gun body; the inner hole of the slip-fit ​​nut has an extension at the end away from the end of the gun body; the extension extends inward and is clearance-fitted with the gun body; the end of the connector seat away from the reducing hole is threadedly connected to an air source pipe.

[0006] Preferably, the gun body is made of stainless steel tubing.

[0007] Preferably, the mating surface between the outer wall of the fastening ring and the variable diameter hole is a conical surface.

[0008] This utility model discloses a novel connection structure for anodizing and reducing lance in an anode furnace, which has the following advantages compared with the prior art:

[0009] By using a connector seat in conjunction with a fastening ring and nut, the problems of long gun changing time and insufficient gas flow in the anode furnace are solved, effectively shortening the time for unclogging the oxidation-reduction gun, ensuring normal production operations, and significantly saving production costs. This improves the production stability and safety of the anode furnace, ensuring continuous production. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0011] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0012] like Figure 1 As shown, a novel anode furnace oxidation-reduction lance connection structure includes a connector seat 1, a loose nut 2, and a lance body 4.

[0013] The connector seat 1 has an axially formed connecting hole, and one end of the connecting hole is a reducing hole 11; the diameter of the reducing hole 11 gradually increases from the inside to the outside; the end of the connector seat 1 near the reducing hole 11 has an external thread, which is threaded to the loose nut 2; the loose nut 2 is fitted onto the gun body 4, wherein the gun body 4 is a stainless steel tube, which facilitates the use of an oxygen-burning tube when replacing the gun body 4. The oxygen-burning tube is inserted into the gun body 4 inside the furnace wall of the anode furnace, and the oxygen sprayed from the oxygen-burning tube burns and melts the gun body 4 inside the furnace, reducing costs; the end of the gun body 4 is inserted into the reducing hole 11; a fastening ring 3 is provided between the reducing hole 11 and the gun body 4; The inner hole of the slip nut 2 has an extension at one end away from the end of the gun body 4. The extension extends inward and is clearance-fitted with the gun body 4 to thread the slip nut 2 to the connector seat 1. The end of the gun body 4 passes through the extension and the inner hole of the slip nut 2 and is inserted into the reducing hole 11. During the thread tightening process, the retaining ring 3 is pushed by the reducing hole 11 of the connector seat 1 to press against the extension. The deformation stress of the retaining ring 3 locks it together with the oxidation-reduction gun body 4, thereby achieving the sealing and fastening of the gun body 4. When disassembly is required, the connector seat 1, slip nut 2 and retaining ring 3 can be separated from the gun body 4 by simply rotating the slip nut 2.

[0014] The end of the connector 1 away from the reducing hole 11 is threaded with an air source pipe. The end of the connector 1 away from the reducing hole 11 can be tapered. The end of the air source pipe connected to the connector 1 is a flared mouth. The tapered connection of the connector 1 is connected to the flared mouth of the air source pipe to avoid affecting the gas flow. The air source pipe is connected to an external air source or process air duct to provide gas to the gun body 4. The air source pipe can be a metal flexible hose.

[0015] In this embodiment, the mating surface between the outer wall of the fastening ring 3 and the variable diameter hole 11 is a conical surface, which facilitates pressing the fastening ring 3 onto the gun body 4 and prevents wear on the fastening ring 3.

[0016] The method of using this utility model is as follows: The loose nut 2 and the fastening ring 3 are put on the gun body 4, and then the loose nut 2 is threadedly connected to the connector seat 1. The end of the gun body 4 passes through the extension and the inner hole of the loose nut 2 and is inserted into the reducing hole 11. The loose nut 2 is tightened so that the fastening ring 3 is locked to the gun body 4. The end of the connector seat 1 away from the reducing hole 11 is connected to the air supply device through the air source pipe.

[0017] When replacing the gun body 4, loosen the slip nut 2, separate the connector seat 1, slip nut 2 and fastening ring 3 from the gun body 4, and then use an oxygen-burning pipe to insert the oxygen-burning pipe into the gun body 4 inside the furnace wall of the anode furnace. The oxygen sprayed from the oxygen-burning pipe will burn and melt the gun body 4 inside the furnace. Then, pass the end of the new gun body 4 through the inner hole of the extension, then through the fastening ring 3, and insert it into the reducing hole 11, so that it is in contact with the reducing hole 11. Tighten the slip nut 2 to secure the gun body 4, and insert the new gun body 4 into the anode furnace.

Claims

1. A novel anode furnace oxidizing and reducing gun connection structure, characterized in that, The joint seat (1), the loose nut (2) and the gun body (4) are included, The joint seat (1) is provided with a connecting hole, and one end of the connecting hole is a variable-diameter hole (11); the variable-diameter hole (11) gradually increases in diameter from inside to outside; one end of the joint seat (1) close to the variable-diameter hole (11) is provided with external threads and is threadedly connected with the loose nut (2); the loose nut (2) is sleeved on the gun body (4); the end of the gun body (4) is inserted into the variable-diameter hole (11); the fastening ring (3) is arranged between the variable-diameter hole (11) and the gun body (4); one end of the inner hole of the loose nut (2) away from the end of the gun body (4) is provided with an extension; the extension extends inward and is in clearance fit with the gun body (4); one end of the joint seat (1) away from the variable-diameter hole (11) is threadedly connected with a gas source pipe.

2. The novel anode furnace oxidation-reduction gun connection structure according to claim 1, characterized in that, The gun body (4) is a stainless steel pipe.

3. The novel anode furnace oxidizing-reducing gun connection structure according to claim 1, characterized in that, The fastening ring (3) is in taper surface fit with the variable-diameter hole (11).

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