CN204608174U - For the primary heater unit of two-maing ladle of electrolytic aluminium factory - Google Patents

Abstract

The utility model belongs to Metal smelting technical field, be specifically related to a kind of primary heater unit of two-maing ladle for electrolytic aluminium factory, comprise vertical columns, moving machine mechanical arm and burner, described moving machine mechanical arm comprises traversing mechanism, rotate column, linkage assembly and hydraulic ram, described vertical columns is connected with described rotation column lower end by described traversing mechanism, described rotation column can rotate relative to vertical columns, described linkage assembly one end and described rotation column upper end thereof, the other end and described burner hinged, hydraulic ram is hinged with between described linkage assembly and described rotation column, described hydraulic ram drive link mechanism moves up and down.The utility model is used for the primary heater unit homogeneous heating of two-maing ladle of electrolytic aluminium factory, and effective, structure is simple, easy to operate, safe, reliable, level of automation and operating efficiency high, greatly reduce manual work intensity, cost.

Description

Ladle preheating device for electrolytic aluminum plant

technical field

The utility model belongs to the technical field of metal smelting, in particular to a ladle-carrying preheating device used in an electrolytic aluminum plant. the

Background technique

In the production of aluminum smelting, the ladle is one of the most important furnace front equipment. The ladle is used to hold the smelted high-temperature liquid aluminum. During the use of the ladle, the bottom and wall of the ladle are easily eroded by slag and adhered to the liquid state. Aluminum, in addition, the oxygen that enters during use is likely to cause the ladle to be oxidized to varying degrees, which requires regular cleaning and repairing of the ladle. The repaired ladle must be fully baked before being put into use to prevent the wet ladle from being put into production to prevent explosion accidents.

The traditional ladle preheating method adopts the effect rod heating method, the heating time is long, the heating is uneven, and the heating effect is poor, which greatly affects the service life of the ladle, and at the same time increases the use and maintenance cost of the ladle in the electrolytic aluminum plant.

Contents of the invention

In order to better solve the problems in the above-mentioned prior art, the utility model provides a ladle preheating device for electrolytic aluminum plants.

In order to achieve the purpose of the above invention, the technical solution of the utility model is: a ladle preheating device used in electrolytic aluminum plants, including a fixed column, a movable mechanical arm and a burner, and the movable mechanical arm includes a slewing mechanism, a rotating column , a connecting rod mechanism and a hydraulic cylinder, the fixed column is connected to the lower end of the rotating column through the slewing mechanism, the rotating column can rotate relative to the fixed column, one end of the connecting rod mechanism is hinged to the upper end of the rotating column, The other end is hinged with the burner, and a hydraulic cylinder is hinged between the connecting rod mechanism and the rotating column, and the hydraulic cylinder drives the connecting rod mechanism to move up and down.

The slewing mechanism includes a power input mechanism, a speed reducer and a slewing support, the power input mechanism is connected to the reducer, the reducer is connected to the slewing support, and the slewing support is connected to the lower end of the rotating column. The power input mechanism drives the slewing bearing to rotate through the reducer, thereby driving the movable mechanical arm to rotate left and right.

The power input mechanism is an electric motor or a hydraulic motor.

The reducer is a gear transmission mechanism.

The linkage mechanism includes a main shaft fixed to the rotating column, a shaft head fixed to the burner, an upper link and a lower link hinged in parallel between the main shaft and the shaft head, and one end of the hydraulic cylinder is connected to the main shaft Hinged, the other end is hinged with the upper link near the end of the burner. The hydraulic oil cylinder drives the upper connecting rod, and the upper connecting rod drives the shaft head, the burner and the lower connecting rod to swing up and down.

The burner includes a combustion chamber, an electric lighter and a flame nozzle, the top of the combustion chamber is provided with an air connection pipe interface and a fuel pipe interface, the combustion chamber is provided with an electric lighter, and the flame nozzle and The bottom of the combustion chamber is connected. Fuel and combustion-supporting air are mixed in the burner, ignited and burned by the electric lighter, and the high-temperature flue gas is sent into the ladle furnace by the flame nozzle.

Beneficial effects: the utility model is used in the ladle preheating device of the electrolytic aluminum plant for uniform heating and good effect. The burner of the utility model used in the ladle preheating device of the electrolytic aluminum factory can move up and down, left and right, fuel and combustion-supporting air are mixed in the burner, ignited and burned by an electric lighter, and the high-temperature flue gas is sent by the flame nozzle Into the interior of the ladle furnace, the burner uses natural gas combustion flue gas to heat the ladle, and uses the uniform diffusion characteristics of high-temperature flue gas to heat the ladle to ensure uniform heating.

In addition, the ladle lifting preheating device of the electrolytic aluminum plant of the utility model has the advantages of simple structure, convenient operation, safety and reliability, high degree of automation and operation efficiency, and greatly reduces the labor intensity and cost.

Description of drawings

Fig. 1 is the structural representation of the utility model used in the ladle preheating device of electrolytic aluminum plant;

Fig. 2 is a structural schematic diagram of the utility model for the fixed column of the ladle preheating device in the electrolytic aluminum plant;

Fig. 3 is a structural schematic diagram of the movable mechanical arm of the ladle preheating device of the utility model used in the electrolytic aluminum plant;

Fig. 4 is the structural representation of the utility model linkage mechanism;

Fig. 5 is the structural representation of the utility model burner;

Fig. 6 is a longitudinal sectional view of the burner of the present utility model.

Detailed ways

The ladle preheating device used in the electrolytic aluminum plant in the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

In the figure, 1 fixed column, 2 movable mechanical arm, 3 burner, 4 rotary mechanism, 5 rotating column, 6 linkage mechanism, 7 hydraulic cylinder, 8 main shaft, 9 upper connecting rod, 10 shaft head, 11 lower connecting rod , 12 air connection pipe interface, 13 electric lighter, 14 fuel pipe interface, 15 combustion chamber, 16 flame nozzle.

Referring to Fig. 1, Fig. 2 and Fig. 3, a ladle preheating device for an electrolytic aluminum plant is characterized in that it includes a fixed column 1, a movable mechanical arm 2 and a burner 3, and the movable mechanical arm 2 includes a rotary Mechanism 4, rotating column 5, connecting rod mechanism 6 and hydraulic cylinder 7, the fixed column 1 is connected with the lower end of the rotating column 5 through the rotary mechanism 4, the rotating column 5 can rotate relative to the fixed column 1, so One end of the connecting rod mechanism 6 is hinged to the upper end of the rotating column 5, and the other end is hinged to the burner 3. A hydraulic cylinder 7 is hinged between the connecting rod mechanism 6 and the rotating column 5. The hydraulic cylinder 7 drives the link mechanism 6 to move up and down.

The slewing mechanism 4 includes a power input mechanism, a reducer and a slewing bearing, the power input mechanism is connected to the reducer, the reducer is connected to the slewing bearing, and the slewing bearing is connected to the lower end of the rotating column 5; The power input mechanism is an electric motor or a hydraulic motor; the speed reducer is a gear transmission mechanism.

The link mechanism 6 includes a main shaft 8 fixed to the rotating column 5 , a shaft head 10 fixed to the burner 3 , an upper link 9 and a lower link hinged in parallel between the main shaft 8 and the shaft head 10 11. One end of the hydraulic cylinder 7 is hinged to the main shaft 8, and the other end is hinged to the end of the upper connecting rod 9 close to the burner 3.

The burner 3 includes a combustion chamber 15, an electric lighter 13 and a flame nozzle 16, the top of the combustion chamber 15 is provided with an air connection pipe interface 12 and a fuel pipe interface 14, and an electric lighter is provided in the combustion chamber 15. Firearm 13, the flame nozzle 16 is connected with the bottom of the combustion chamber 15.

The working principle of the present invention is as follows:

When the utility model works, the rotary mechanism 4 on the device drives the rotary column 5 to rotate left and right, thereby driving the burner 3 connected to the rotary column 5 through the connecting rod mechanism 6 to rotate left and right, and the hydraulic cylinder 7 pushes the connecting rod mechanism 6 to drive the burner 3 moves up and down, the left and right swing and up and down movement of the burner 3 make it possible to quickly and efficiently align the ladle openings in different positions for heating, and the mixed gas is mixed and burned in the burner 3 through the pipeline to form high-temperature flue gas, and It is sprayed from the burner to perform preheating work.

Claims (6)

1. A ladle preheating device for an electrolytic aluminum plant, characterized in that: it includes a fixed column, a movable mechanical arm and a burner, and the movable mechanical arm includes a rotary mechanism, a rotating column, a connecting rod mechanism and a hydraulic cylinder, The fixed column is connected to the lower end of the rotating column through the slewing mechanism, the rotating column can rotate relative to the fixed column, one end of the linkage mechanism is hinged to the upper end of the rotating column, and the other end is hinged to the burner A hydraulic cylinder is hinged between the connecting rod mechanism and the rotating column, and the hydraulic cylinder drives the connecting rod mechanism to move up and down. 2. The ladle preheating device for electrolytic aluminum plant according to claim 1, characterized in that: the rotary mechanism includes a power input mechanism, a speed reducer and a slewing bearing, and the power input mechanism and the speed reducer connected, the reducer is connected with the slewing bearing, and the slewing bearing is connected with the lower end of the rotating column. 3. The ladle preheating device for electrolytic aluminum plant according to claim 2, characterized in that: the power input mechanism is an electric motor or a hydraulic motor. 4. The ladle preheating device for electrolytic aluminum plant according to claim 2, characterized in that: the reducer is a gear transmission mechanism. 5. The ladle preheating device for electrolytic aluminum plant according to claim 1, characterized in that: the linkage mechanism includes a main shaft fixed to the rotating column, a shaft head fixed to the burner, The upper link and the lower link are hinged between the main shaft and the shaft head in parallel, one end of the hydraulic oil cylinder is hinged with the main shaft, and the other end is hinged with the upper link near the end of the burner. 6. The ladle preheating device for electrolytic aluminum plants as claimed in claim 1 or 2, characterized in that: the burner includes a combustion chamber, an electric lighter and a flame nozzle, and the top of the combustion chamber is provided with There is an air connection pipe interface and a fuel pipe interface, an electric lighter is arranged in the combustion chamber, and the flame nozzle is connected with the bottom of the combustion chamber.