A water-jacketed flue gate for a secondary lead smelting furnace

Abstract

A water-jacketed flue gate of a secondary lead smelting furnace belongs to the technical field of secondary lead smelting. The water-jacketed gate includes: a gate cooling wall, a gate water inlet, a gate water outlet, a gate hook, a gate serpentine pipe, a gate refractory brick and a gate dovetail groove; a gate hook is connected to the upper end of the gate cooling wall; there are two gate serpentine pipes, which are embedded in the gate cooling wall side by side, and a gate water inlet and a gate water outlet are respectively provided at both ends of the gate serpentine pipe, both of which are led out from the upper end of the gate cooling wall; there are gate dovetail grooves on the four sides and the bottom of the gate cooling wall, and gate refractory bricks are connected to the gate dovetail grooves; one end of the gate refractory brick has a dovetail tenon, and the dovetail tenon matches the gate dovetail groove; the two gate serpentine pipes, one is vertical and the other is horizontally arranged. Advantages: Reliable operation, flexible opening and closing, tight sealing, high strength, good rigidity, simple and durable structure, safe and convenient to use under high temperature conditions.

Description

Technical Field

[0001] The utility model relates to the technical field of secondary lead smelting, in particular to a water jacket type flue gate of a secondary lead smelting furnace. Background Art

[0002] The flue gate is an important part of the metal smelting furnace. By closing and opening the flue gate, the high-temperature flue gas flow, flue gas flow direction, and furnace pressure of the metal smelting furnace can be controlled, thereby adjusting the working conditions of the metal smelting furnace and improving the combustion atmosphere in the furnace. Whether it works normally directly affects the production and operation of the metal smelting furnace.

[0003] At present, the high-temperature flue gates commonly used in metal smelting furnaces are cast iron flue gates and water-cooled flue gates. Under high-temperature working conditions, cast iron flue gates are used, because the flue gas temperature is high and they are easily deformed by heat, which is not conducive to the opening and closing of the gates; under high-temperature working conditions, water-cooled flue gates can solve the problem of flue gate deformation, but the flue gas often contains corrosive gases, and the gates are easily corroded and have a short service life. They need to be repaired and replaced frequently, which affects normal production. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a water-jacketed flue gate for a secondary lead smelting furnace in view of the deficiencies in the above-mentioned prior art. Under high-temperature working conditions, the water-jacketed flue gate will not be easily deformed due to the high flue gas temperature; and the service life will not be reduced due to the corrosive gases in the flue gas.

[0005] The purpose of the utility model is achieved as follows: the water jacket gate comprises: a gate cooling wall, a gate water inlet, a gate water outlet, a gate hook, a gate serpentine pipe, a gate refractory brick and a gate dovetail groove;

[0006] A gate hook is connected to the upper end of the gate cooling wall; there are two gate serpentine pipes, which are embedded in the gate cooling wall side by side, and a gate water inlet and a gate water outlet are respectively provided at both ends of the gate serpentine pipe, both of which are led out from the upper end of the gate cooling wall; gate dovetail grooves are provided on the four sides and the bottom of the gate cooling wall, and gate refractory bricks are connected to the gate dovetail grooves; one end of the gate refractory brick is provided with a dovetail tenon, and the dovetail tenon matches the gate dovetail groove.

[0007] The two gate serpentine tubes are arranged one vertically and the other horizontally.

[0008] Beneficial effect: Due to the adoption of the above scheme, a gate water inlet, a gate water outlet and a gate hook are provided on the upper end side of the gate cooling wall; the gate hook is used for raising and lowering the water-jacketed flue gate, and is also conducive to lifting the water-jacketed flue gate out of the gate for maintenance; the gate water inlet and the gate water outlet are used to cool the water passing through the gate cooling wall, thereby alleviating the thermal deformation of the water-jacketed flue gate in a high temperature environment; the gate refractory bricks are connected and embedded on the periphery of the gate cooling wall, which can effectively resist the corrosive gas generated by the secondary lead smelting furnace during operation, and buffer the high temperature impact of the high temperature generated during operation on the gate cooling wall, thereby greatly extending the service life, reducing the maintenance frequency of workers, and thus reducing labor intensity and accident rate; when the gate refractory bricks are damaged, because the gate refractory bricks and the gate cooling wall are matched with dovetail tenons and gate dovetail grooves, it is very convenient to replace the gate refractory bricks. The structure is simple, the gate is flexible to open and close, it does not deform during use and is corrosion-resistant. It can effectively prevent flue gas leakage when the gate is opened and closed, and it is low-consumption and environmentally friendly.

[0009] The water-jacketed flue gate, under high-temperature working conditions, will not be easily deformed due to the high temperature of the flue gas; nor will its service life be reduced due to the corrosive gases in the flue gas, thereby achieving the purpose of the utility model.

[0010] Advantages: Reliable operation, flexible opening and closing, tight sealing, high strength, good rigidity, simple and durable structure, safe and convenient to use under high temperature conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The utility model is a schematic diagram of the cross-sectional structure of a water jacket gate.

[0012] Figure 2 yes Figure 1 Schematic diagram of the side structure.

[0013] Figure 3 The utility model is a schematic diagram of the gate cooling wall structure of the water jacket gate.

[0014] In the figure, 1. gate cooling wall; 2. gate water inlet; 3. gate water outlet; 4. gate hook; 5. gate serpentine pipe; 6. gate refractory brick; 7. gate dovetail groove. DETAILED DESCRIPTION

[0015] Embodiment 1: The water jacket gate comprises: a gate cooling wall 1, a gate water inlet 2, a gate water outlet 3, a gate hook 4, a gate serpentine pipe 5, a gate refractory brick 6 and a gate dovetail groove 7;

[0016] A gate hook 4 is connected to the upper end of the gate cooling wall 1; there are two gate serpentine pipes 5, which are embedded in the gate cooling wall 1 side by side, and a gate water inlet 2 and a gate water outlet 3 are respectively provided at both ends of the gate serpentine pipe 5, both of which are led out from the upper end of the gate cooling wall 1; gate dovetail grooves 7 are provided on the four sides and the bottom surface of the gate cooling wall 1, and gate refractory bricks 6 are connected to the gate dovetail grooves 7; one end of the gate refractory brick 6 has a dovetail tenon, and the dovetail tenon matches the gate dovetail groove 7.

[0017] The two gate serpentine tubes 5 are arranged one vertically and the other horizontally.

[0018] There are a gate water inlet 2, a gate water outlet 3 and a gate hook 4 on the upper end side of the gate cooling wall 1; the gate hook 4 is used for raising and lowering the water-jacketed flue gate, and is also conducive to lifting the water-jacketed flue gate out of the gate for maintenance; the gate water inlet 2 and the gate water outlet 3 are used to cool the water passing through the gate cooling wall 1, alleviating the thermal deformation of the water-jacketed flue gate in a high temperature environment; the gate refractory bricks are connected and embedded on the side of the gate cooling wall 1, which can effectively resist the corrosive gas generated by the secondary lead smelting furnace during operation, and buffer the high temperature impact of the high temperature generated during operation on the gate cooling wall 1, greatly extending the service life, reducing the maintenance frequency of workers, thereby reducing labor intensity and accident rate; when the gate refractory bricks are damaged, because the gate refractory bricks and the gate cooling wall 1 are matched with the dovetail tenon and the gate dovetail groove 7, it is very convenient to replace the gate refractory bricks.

Claims

1. A water-jacketed flue gate for a secondary lead smelting furnace, characterized in that: The water jacket gate includes: gate cooling wall, gate water inlet, gate water outlet, gate hook, gate serpentine pipe, gate refractory bricks and gate dovetail groove; A gate hook is connected to the upper end of the gate cooling wall; there are two gate serpentine pipes, which are embedded in the gate cooling wall side by side, and a gate water inlet and a gate water outlet are respectively provided at both ends of the gate serpentine pipe, both of which are led out from the upper end of the gate cooling wall; gate dovetail grooves are provided on the four sides and the bottom of the gate cooling wall, and gate refractory bricks are connected to the gate dovetail grooves; one end of the gate refractory brick is provided with a dovetail tenon, and the dovetail tenon matches the gate dovetail groove.

2. The water-jacketed flue gate of a secondary lead smelting furnace according to claim 1, characterized in that: The two gate serpentine tubes are arranged one vertically and the other horizontally.

Images