Pre-cooling type anode furnace gas mixing chamber

Abstract

The utility model provides a pre-cooling type anode furnace gas mixing chamber which comprises a steel cylindrical shell, a conical barrel is arranged at the bottom of the cylindrical shell, a slag tap is arranged at the bottom of the conical barrel, a valve is arranged at the slag tap, a layer of temperature-resistant castable is poured on the inner walls of the cylindrical shell and the conical barrel, a smoke inlet pipe is arranged on one side of the cylindrical shell, a smoke outlet pipe is arranged on the other side of the cylindrical shell, and the valve is arranged on the conical barrel. The smoke inlet pipe and the smoke outlet pipe are both communicated with an inner cavity of the gas mixing chamber, the smoke inlet pipe comprises an inner pipe and an outer pipe, the inner pipe and the outer pipe are concentrically arranged, a circle of cooling cavity is arranged between the inner pipe and the outer pipe, a sealing plate is arranged at the outer ends of the inner pipe and the outer pipe, the outer pipe is provided with a water inlet pipe and a water outlet pipe, and the water inlet pipe and the water outlet pipe are both communicated with the cooling cavity. Outer ends of the water inlet pipe and the water outlet pipe are connected to a circulating water cooling device; the service life of the gas mixing chamber is prolonged, and the construction period is shortened.

Description

Technical Field

[0001] The utility model relates to the field of copper metallurgical fume treatment, in particular to a precooling anode furnace gas mixing chamber. Background Art

[0002] In traditional copper pyrometallurgy, the production mixing chamber generally uses a steel cylinder lined with heat-resistant bricks, and the flue gas directly enters the mixing chamber. Due to the high temperature of the flue gas, the mixing chamber is damaged quickly, and maintenance and replacement are frequent, resulting in a short service life. In addition, the mixing chamber has a small space, the workload of laying heat-resistant bricks is relatively large, the quality of masonry is difficult to guarantee, the construction period is long, and the labor intensity is high. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a precooling anode furnace gas mixing chamber.

[0004] The specific scheme of the utility model is as follows: a pre-cooling anode furnace mixing chamber, comprising a steel cylindrical shell, a cone is provided at the bottom of the cylindrical shell, a slag outlet is provided at the bottom of the cone, a valve is installed at the slag outlet, the inner wall of the cylindrical shell and the cone is cast with a layer of temperature-resistant castable, a smoke inlet pipe is provided on one side of the cylindrical shell, and a smoke outlet is provided on the other side, both the smoke inlet pipe and the smoke outlet pipe are connected with the inner cavity of the mixing chamber, the smoke inlet pipe comprises an inner tube and an outer tube, the inner tube and the outer tube are arranged concentrically, a circle of cooling cavity is provided between the inner tube and the outer tube, a sealing plate is installed at the outer ends of the inner tube and the outer tube, the outer tube is provided with a water inlet pipe and a water outlet pipe, both the water inlet pipe and the water outlet pipe are connected with the cooling cavity, and the outer ends of the water inlet pipe and the water outlet pipe are connected to a circulating water cooling device.

[0005] Preferably, an explosion-proof safety door is installed at the top of the cylindrical shell.

[0006] Preferably, the water inlet pipe is arranged close to the cylindrical shell, and the water outlet pipe is arranged far away from the cylindrical shell.

[0007] Preferably, the water inlet pipe is arranged at the bottom end of the smoke inlet pipe, and the water outlet pipe is arranged at the upper end of the smoke inlet pipe.

[0008] Preferably, the length of the cooling chamber is 1-2 meters.

[0009] Compared with the prior art, the utility model has the following beneficial effects: 1. A water cooling structure is set at the smoke inlet pipe to pre-cool the high-temperature smoke, so that the temperature of the smoke entering the mixing chamber is greatly reduced, thereby reducing the damage to the internal structure of the mixing chamber and improving the service life of the mixing chamber; 2. The heat-resistant material of the inner wall of the mixing chamber is made by casting, which is simpler than laying heat-resistant bricks and shortens the construction period; 3. An explosion-proof safety door is set. When an explosion occurs, the explosion-proof safety door automatically opens to prevent the explosion from causing greater damage to the mixing chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0011] Figure 2 It is the front view of the utility model;

[0012] Figure 3 yes Figure 2 AA view;

[0013] Figure 4 yes Figure 3 BB view;

[0014] In the figure: 1. cylindrical shell; 2. smoke inlet pipe; 21. inner pipe; 22. outer pipe; 23. cooling chamber; 3. explosion-proof safety door; 4. smoke outlet pipe; 5. water inlet pipe; 6. water outlet pipe; 7. valve. DETAILED DESCRIPTION

[0015] like Figure 1-4 As shown, the present embodiment provides a precooling anode furnace mixing chamber, comprising a steel cylindrical shell 1, a cone is provided at the bottom of the cylindrical shell 1, a slag outlet is provided at the bottom of the cone, a valve 7 is installed at the slag outlet, the inner wall of the cylindrical shell 1 and the cone is cast with a layer of temperature-resistant castable, a smoke inlet pipe 2 is provided on one side of the cylindrical shell 1, and a smoke outlet pipe 4 is provided on the other side, the smoke inlet pipe 2 and the smoke outlet pipe 4 are both connected with the inner cavity of the mixing chamber, the smoke inlet pipe 2 comprises an inner tube 21 and an outer tube 22, the inner tube 21 and the outer tube 22 are arranged concentrically, a circle of cooling chamber 23 is provided between the inner tube 21 and the outer tube 22, an annular sealing plate is installed at the outer ends of the inner tube 21 and the outer tube 22, the function of the annular sealing plate is to close the cooling chamber 23, the outer tube 22 is provided with a water inlet pipe 5 and a water outlet pipe 6, the water inlet pipe 5 and the water outlet pipe 6 are both connected with the cooling chamber 23, and the outer ends of the water inlet pipe 5 and the water outlet pipe 6 are connected to a circulating water cooling device.

[0016] Preferably, an explosion-proof safety door 3 is installed at the top of the cylindrical shell 1.

[0017] Preferably, the water inlet pipe 5 is arranged close to the cylindrical shell 1 , and the water outlet pipe 6 is arranged far away from the cylindrical shell 1 .

[0018] Preferably, the water inlet pipe 5 is arranged at the bottom end of the smoke inlet pipe 2 , and the water outlet pipe 6 is arranged at the upper end of the smoke inlet pipe 2 .

[0019] Preferably, the length of the cooling chamber 23 is 1-2 meters. When the utility model is working, the water inlet pipe 5 and the water outlet pipe 6 are connected to a circulating water cooling device, so that cold water with a relatively low temperature always flows in the cooling chamber 23 inside the smoke inlet pipe 2. When the high-temperature flue gas enters from the smoke inlet pipe 2, it exchanges heat with the low-temperature smoke inlet pipe 2, causing the temperature of the flue gas to drop sharply, and then enter the mixing chamber; because the water inlet pipe 5 is arranged close to the cylindrical shell 1 and the water outlet pipe 6 is arranged far away from the cylindrical shell 1, the flow direction of the cooling water is opposite to the flow direction of the flue gas, thereby improving the effect of cooling the flue gas; because the temperature of the flue gas entering the mixing chamber is reduced, the purpose of extending the service life of the mixing chamber is achieved.

Claims

1. A precooling anode furnace mixing chamber, characterized in that: It includes a steel cylindrical shell, a cone is provided at the bottom of the cylindrical shell, a slag discharge port is provided at the bottom of the cone, a valve is installed at the slag discharge port, a layer of temperature-resistant castable is cast on the inner wall of the cylindrical shell and the cone, a smoke inlet pipe is provided on one side of the cylindrical shell, and a smoke outlet pipe is provided on the other side, both the smoke inlet pipe and the smoke outlet pipe are connected with the inner cavity of the mixing chamber, the smoke inlet pipe includes an inner pipe and an outer pipe, the inner pipe and the outer pipe are concentrically arranged, a circle of cooling cavity is provided between the inner pipe and the outer pipe, a sealing plate is installed at the outer ends of the inner pipe and the outer pipe, the outer pipe is provided with a water inlet pipe and a water outlet pipe, both the water inlet pipe and the water outlet pipe are connected with the cooling cavity, and the outer ends of the water inlet pipe and the water outlet pipe are connected to a circulating water cooling device.

2. The precooling anode furnace mixing chamber according to claim 1, characterized in that: An explosion-proof safety door is arranged on the top of the cylindrical shell.

3. The precooling anode furnace mixing chamber according to claim 1, characterized in that: The water inlet pipe is arranged close to the cylindrical shell, and the water outlet pipe is arranged far away from the cylindrical shell.

4. The precooling anode furnace mixing chamber according to claim 3, characterized in that: The water inlet pipe is arranged at the bottom end of the smoke inlet pipe, and the water outlet pipe is arranged at the upper end of the smoke inlet pipe.

5. The precooling anode furnace mixing chamber according to claim 1, characterized in that: The length of the cooling chamber is 1-2 meters.

Images