Water-cooling slag runner launder for slag tapping system of ferronickel production line

Abstract

The utility model belongs to the technical field of ferronickel production line equipment, and particularly relates to a water-cooling slag runner launder for a ferronickel production line slag tapping system, which comprises a main tank body, a V-shaped launder is arranged at one end of the main tank body, and a non-refractory water-cooling launder communicated with the V-shaped launder is arranged in the main tank body. And a plurality of water inlet pipes and water outlet pipes are fixedly inserted into the bottom of the non-refractory water-cooling launder. According to the utility model, an original refractory material slag hole launder is changed into a refractory material water-cooling launder, green mud is directly not needed to repair slag hole drop points in production operation, slag liquid can flow in a counterpoint manner, meanwhile, the current situation that the refractory material is damaged in high-temperature slag flow scouring is avoided, production paving materials are greatly saved, and the production cost is reduced. And meanwhile, the operation safety of personnel is also ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of nickel-iron production line equipment, in particular to a water-cooled slag ditch flow channel of a slag discharge system of a nickel-iron production line. Background Art

[0002] The main mineral resources currently available for economic mining of nickel are sulfide nickel ore and laterite nickel ore. Laterite nickel ore is mainly divided into surface limonite-type laterite nickel ore and bottom humus-type laterite nickel ore, both of which have relatively low copper content. Limonite-type laterite nickel ore has a low nickel content and a high cobalt content, and is mainly smelted using a fully hydrometallurgical process to produce nickel hydroxide and cobalt intermediates or nickel sulfate and cobalt sulfate products. Humus-type laterite nickel ore has a high nickel content and a low cobalt content, and is usually smelted using a pyrometallurgical process to produce ferronickel. Recently, there has also been industrial application of further blowing ferronickel to produce high-grade nickel matte. The main process of sulfide nickel ore smelting is to first obtain nickel concentrate through ore dressing. The nickel concentrate is then subjected to pyrometallurgical matte smelting to remove gangue, most of the iron, and some sulfur, producing low-grade nickel matte. The low-grade nickel matte is further blown to remove iron and silicon to obtain high-grade nickel matte.

[0003] As a nickel-iron RKEF process production line, a slag discharge system is indispensable. In addition to the eye-opening and plugging machine, this system is also equipped with a non-standard refractory launder. This type of refractory launder is responsible for draining the slag liquid at more than 1500 degrees, and it needs to be drained 6 times per 12-hour shift, each time for about 45 minutes. Under this high-temperature environment, in order to ensure that the high-temperature slag liquid flows to the mouth during slag discharge and prevent blasting, workers are required to wear safety belts and use green mud to repair the launder mouth at the high-temperature launder mouth every time. Utility Model Content

[0004] The purpose of the utility model is to solve the problem proposed in the above background technology that in order to prevent the explosion phenomenon, workers are required to wear safety belts to repair the high-temperature launder mouth with green mud for each furnace, and a slag discharge system of a nickel iron production line is proposed that uses a water-cooled slag ditch launder.

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

[0006] A slag discharge system of a nickel iron production line uses a water-cooled slag ditch, which includes a main trough body, one end of which is provided with a V-shaped trough, and the main trough body is provided with a non-refractory water-cooled trough connected to the V-shaped trough, and the bottom of the non-refractory water-cooled trough is fixedly inserted with multiple water inlet pipes and water outlet pipes.

[0007] Preferably, the V-shaped flow trough is formed by splicing a plurality of V-shaped blocks.

[0008] Preferably, the space between the V-shaped flow channel and the main trough body is filled with heat insulation material.

[0009] Preferably, a plurality of cooling cavities are equidistantly provided inside the non-refractory water-cooling flow channel, and a plurality of water holes are staggered between the plurality of cooling cavities.

[0010] Preferably, the non-refractory water-cooling flow channel is semicircular and has a radius of 500 mm.

[0011] Preferably, the cooling cavity has a thickness of 130 mm and a length of 2000 mm.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In the utility model, the original refractory slag mouth flow channel is changed into a water-cooled flow channel that does not require refractory. In production operation, there is no need to directly use green mud to repair the slag mouth landing point, and the slag liquid can also flow in place. At the same time, the refractory material will no longer be damaged during the high-temperature slag flow flushing, which greatly saves production materials and ensures the safety of personnel operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of a water-cooled slag ditch flow channel for a slag discharge system of a nickel iron production line proposed by the present invention;

[0015] Figure 2 This is a front view structural diagram of a non-refractory water-cooled chute in a water-cooled slag ditch chute of a slag discharge system of a nickel iron production line proposed by the present invention;

[0016] Figure 3 This is a schematic diagram of the internal structure of a non-refractory water-cooled chute in a water-cooled slag ditch chute of a slag discharge system of a nickel iron production line proposed by the present invention.

[0017] In the figure: 1 main tank body, 2 V-shaped chute, 3 non-refractory water-cooling flow channel, 4 water inlet pipe, 5 water outlet pipe, 6 insulation material, 7 cooling cavity, 8 water hole. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] Reference Figure 1-3 A water-cooled slag trough for a slag discharge system of a nickel iron production line comprises a main trough body 1, a V-shaped trough 2 is provided at one end of the main trough body 1, the V-shaped trough 2 is formed by splicing a plurality of V-shaped blocks, and a heat insulating material 6 is filled between the V-shaped trough 2 and the main trough body 1;

[0020] In this embodiment, a non-refractory water-cooled flow channel 3 connected to the V-shaped flow channel 2 is provided in the main trough body 1, so that the non-refractory water-cooled flow channel 3 no longer suffers from refractory damage during the flow of high-temperature slag. A plurality of cooling chambers 7 are equidistantly provided inside the non-refractory water-cooled flow channel 3. The thickness of the cooling chamber 7 is 130 mm and the length is 2000 mm.

[0021] In this embodiment, multiple water holes 8 are arranged in an staggered manner between the multiple cooling chambers 7. The non-refractory water-cooling flow channel 3 is semicircular with a radius of 500 mm. Multiple water inlet pipes 4 and water outlet pipes 5 are fixedly inserted at the bottom of the non-refractory water-cooling flow channel 3.

[0022] In this embodiment, the original refractory slag mouth flow channel is changed into a water-cooled flow channel that does not require refractory. In production operations, there is no need to directly use green mud to repair the slag mouth landing point, and the slag liquid can also flow in place. At the same time, the refractory will no longer be damaged during the high-temperature slag flow flushing, which greatly saves production materials and ensures the safety of personnel operations.

[0023] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A water-cooled slag ditch for a slag discharge system of a nickel iron production line, comprising a main trough body (1), characterized in that: A V-shaped flow groove (2) is provided at one end of the main trough body (1), a non-refractory water-cooled flow groove (3) connected to the V-shaped flow groove (2) is provided in the main trough body (1), and a plurality of water inlet pipes (4) and water outlet pipes (5) are fixedly inserted at the bottom of the non-refractory water-cooled flow groove (3).

2. The slag discharge system of a nickel iron production line according to claim 1 uses a water-cooled slag ditch, characterized in that: The V-shaped flow trough (2) is formed by splicing a plurality of V-shaped blocks.

3. The slag discharge system of a nickel iron production line according to claim 1 uses a water-cooled slag ditch, characterized in that: A heat insulating material (6) is filled between the V-shaped flow trough (2) and the main trough body (1).

4. The slag discharge system of a nickel iron production line according to claim 1 uses a water-cooled slag ditch launder, characterized in that: A plurality of cooling cavities (7) are equidistantly arranged inside the non-refractory water-cooling flow channel (3), and a plurality of water holes (8) are staggeredly arranged between the plurality of cooling cavities (7).

5. The slag discharge system of a nickel iron production line according to claim 1 uses a water-cooled slag ditch, characterized in that: The non-refractory water-cooling flow channel (3) is semicircular and has a radius of 500 mm.

6. The slag discharge system of a nickel iron production line according to claim 4 uses a water-cooled slag ditch, characterized in that: The cooling cavity (7) has a thickness of 130 mm and a length of 2000 mm.

Images