Slag ladle flue gas collecting device for slag discharge of sedimentation electric furnace

Abstract

The utility model provides a cinder ladle flue gas collecting device for slag discharge of a settling electric furnace, which comprises a cinder ladle room, the cinder ladle room is used for accommodating a cinder ladle vehicle, the cinder ladle room is respectively provided with a blocking wall on two sides of a track of the cinder ladle vehicle, the top of the cinder ladle room is provided with a smoke collecting hood, and the top end of the smoke collecting hood is provided with a flue gas pipeline connected to an exhaust fan. A circle of purging pipe is arranged at the bottom of the exhaust fume collecting hood along the outline, a plurality of blowing holes are formed in the bottom of the purging pipe along the full length, an air inlet pipe is arranged on one side of the purging pipe, the outer end of the air inlet pipe is connected with an air blower, and the purging pipe blows air downwards to form an air curtain when the air blower works; lateral air leakage of a train is isolated through the cinder ladle room, peripheral air leakage of the cinder ladle is isolated through the air curtain, smoke is collected in a centralized mode through the smoke collecting hood, scattered smoke of the cinder ladle in the deslagging process is achieved, and the requirement for environment-friendly and high-quality development is met.

Description

Technical Field

[0001] The utility model relates to the technical field of copper smelting production, in particular to a slag ladle flue gas collection device for slag discharging of a settling electric furnace. Background Art

[0002] In modern copper pyrometallurgy, a settling electric furnace is mainly used to realize the settling separation of matte and slag, and reduce the copper content in the slag. Its high-temperature molten slag is discharged through a slag discharging port and then enters a ladle along a slag discharging chute. A large amount of melt in the ladle will continuously emit sulfur-containing flue gas, and continuous flue gas collection is required. Since the smelting slag is generally transported in the form of "train + ladle", it is very difficult to create a closed space for physical sealing in the slag ladle area, and the flue gas collection effect is poor. There is often a situation of smoke leakage, which does not meet the environmental protection requirements. Content of the Utility Model

[0003] In order to solve the above technical problems, the utility model provides a slag ladle flue gas collection device for slag discharging of a settling electric furnace.

[0004] The specific scheme of the utility model is as follows: A slag ladle flue gas collection device for slag discharging of a settling electric furnace includes a slag house, which is used to accommodate a slag truck. There is a wall on each side of the track of the slag truck in the slag house. A smoke collection hood is installed on the top of the slag house. The top end of the smoke collection hood is provided with a flue gas pipe connected to a suction fan. A purge pipe is installed along the contour at the bottom of the smoke collection hood. A number of blow holes are provided along the full length at the bottom of the purge pipe. An air inlet pipe is provided on one side of the purge pipe. The outer end of the air inlet pipe is connected to a blower. When the blower works, the purge pipe blows air downward to form an air curtain.

[0005] Further, two connecting plates are welded on the outer wall surface of the purge pipe, and the connecting plates and the smoke collection hood are connected by bolts.

[0006] Further, a pipe joint is provided at the position of the purge pipe where the air inlet pipe is located. The pipe joint matches the air inlet pipe, and the air inlet pipe is fixedly installed on the wall of the slag house.

[0007] Further, extension parts are provided at the bottom of the smoke collection hood corresponding to the two side walls of the slag house, and the extension parts and the walls are connected by bolts.

[0008] Compared with the prior art, the utility model has the following beneficial effects: By isolating the side air leakage of the train through the slag house, isolating the air leakage around the slag ladle through the air curtain, and centrally collecting the smoke through the smoke collection hood, the scattered escape of the slag ladle flue gas during the slag discharging process is achieved, which meets the requirements of green and high-quality development. Description of the Drawings

[0009] Figure 1 is a perspective view of the utility model;

[0010] Figure 2It is the main view of the utility model;

[0011] Figure 3 yes Figure 2 AA view;

[0012] Figure 4 yes Figure 2 BB view;

[0013] In the figure: 1, wall; 2, smoke hood; 21, extension; 3, connecting plate; 4, air inlet pipe; 5, blower; 6, purge pipe; 61, air hole. DETAILED DESCRIPTION

[0014] like Figures 1-4 As shown, this embodiment is a slag bag fume collection device for settling electric furnace slag, including a slag bag room, which is used to accommodate slag bag cars. The slag bag room is located on both sides of the track of the slag bag car and is provided with a wall. A smoke collecting hood 2 is installed on the top of the slag bag room, and a smoke duct connected to the exhaust fan is provided on the top of the smoke collecting hood 2. A circle of purge pipes 6 are installed along the contour of the bottom of the smoke collecting hood 2. A plurality of blowing holes 61 are provided along the entire length of the bottom of the purge pipe 6. An air inlet pipe 4 is provided on one side of the purge pipe 6. The outer end of the air inlet pipe 4 is connected to a blower 5. When the blower 5 is working, the purge pipe 6 blows air downward to form an air curtain. The blower 5 uses an air volume of 5910m 3 / h steel centrifugal fan.

[0015] Furthermore, the outer wall of the purge pipe 6 is welded with

[0016] Two connecting plates 3 are connected to the smoke hood 2 by bolts; the bolt connection makes it easy to replace the purge pipe 6. Furthermore, the purge pipe 6 is provided with a pipe joint at the air inlet pipe 4, which matches the air inlet pipe 4, and the air inlet pipe 4 is fixedly mounted on the wall 1 of the slag room.

[0017] Furthermore, the bottom of the smoke hood 2 is provided with extensions 21 corresponding to the two side walls 1 of the slag room, and the extensions 21 are connected to the walls 1 by bolts; by setting the smoke hood 2 to be bolted, the smoke hood 2 is easy to disassemble and replace.

[0018] The working principle of the utility model is as follows: the slag bag room is set at the end of the slag discharge chute, and the train loaded with slag bags moves along the track to the slag bag room and stops. At this time, the blower 5 is started first, and a large flow of air is blown into the purge pipe 6 through the air inlet pipe 4. The air flows out from each blowing hole 61 and sprays downward to form an air curtain wall; when the slag is discharged, the slag falls into the slag bag and generates a large amount of smoke. The smoke is surrounded by the air curtain wall and cannot overflow. The smoke in the slag bag room is extracted through the smoke collecting hood 2.

Claims

1. A slag ladle flue gas collection device for a settling electric furnace slag discharge, characterized in that: It includes a slag bag room, which is used to accommodate slag bag cars. The slag bag room is located on both sides of the track of the slag bag car and is provided with a wall. A smoke hood is installed on the top of the slag bag room, and a smoke duct connected to the exhaust fan is provided on the top of the smoke hood. A circle of purge pipes is installed along the outline of the bottom of the smoke hood. Several blowing holes are provided along the entire length of the bottom of the purge pipe. An air inlet pipe is provided on one side of the purge pipe, and a blower is connected to the outer end of the air inlet pipe. When the blower is working, the purge pipe blows air downward to form an air curtain.

2. The slag ladle flue gas collection device for a settling electric furnace slag discharge according to claim 1, wherein: Two connecting plates are welded to the outer wall surface of the purge pipe, and the connecting plates are connected to the smoke collecting hood by bolts.

3. The slag bag fume collection device for slag discharge in a settling electric furnace according to claim 2, characterized in that: The purge pipe is provided with a pipe joint at the air inlet pipe, the pipe joint matches the air inlet pipe, and the air inlet pipe is fixedly installed on the wall of the slag bag room.

4. The slag ladle flue gas collection device for tapping of a settling electric furnace according to claim 1, characterized in that: The bottom of the smoke collecting hood is provided with extension parts corresponding to the walls on both sides of the slag bag room, and the extension parts are connected to the walls through bolts.

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