Novel efficient furnace door smoke hood device for fixed anode furnace in recycled copper industry

Abstract

The utility model discloses a novel efficient furnace door smoke hood device of a fixed anode furnace in the recycled copper industry, which comprises an annular smoke collecting pipe and furnace door smoke hoods, the furnace door smoke hoods are respectively arranged above each furnace door smoke escape point of the anode furnace, each furnace door smoke hood is communicated with the annular smoke collecting pipe, and a layer of lining refractory castable is poured in each furnace door smoke hood. A refractory brick masonry layer is arranged at the joint of the lower back face of the furnace door smoke hood and the furnace body, and an air curtain generation structure is arranged on the lower front portion of the furnace door smoke hood. According to the utility model, the small-sized wall-mounted cover with an ingenious structure is adopted to replace a high suspended cover to be arranged above each furnace door smoke escape point of the anode furnace to improve the smoke suction effect; refractory casting materials in the steel smoke hood and the smoke pipe are used for heat insulation, and the back of the smoke hood is built by refractory bricks to prolong the service life; an air curtain is arranged at the front part of the smoke hood where a fixed baffle and a movable baffle are inconvenient to arrange for replacement, so that the smoke suction effect is further improved; and finally, subsequent dust collection facilities are subjected to high-temperature-resistant and explosion-proof transformation, the system stability is improved, and the safety is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of anode furnace door smoke hoods, in particular to a novel high-efficiency furnace door smoke hood device for a fixed anode furnace in the recycled copper industry. Background Art

[0002] Currently, the recycled copper industry primarily relies on fixed anode furnaces as the primary refining furnace. The anode furnace door, serving as the entrance for charging and inserting air ducts, is the largest source of low-level air pollution. Fume hoods are typically installed here to prevent this low-level air pollution.

[0003] like Figure 1 and Figure 2 As shown, most of the traditional anode furnace door smoke hoods currently use a large high-hanging hood structure; the problem is that it is far away from the smoke source at the furnace door, the suction force is small, the smoke cannot be completely sucked out, the low-altitude pollution is serious, and metal loss occurs. Utility Model Content

[0004] In order to solve the above technical problems, the utility model designs a new high-efficiency furnace door smoke hood device for a fixed anode furnace in the recycled copper industry.

[0005] The utility model adopts the following technical solutions:

[0006] A new type of high-efficiency furnace door smoke hood device for a fixed anode furnace in the recycled copper industry includes a ring smoke collecting pipe and a furnace door smoke hood. A furnace door smoke hood is respectively arranged above the smoke escape point of each furnace door of the anode furnace, and each furnace door smoke hood is connected to the ring smoke collecting pipe. A layer of lining refractory castable is cast in the furnace door smoke hood, a layer of refractory brick masonry is arranged between the lower back of the furnace door smoke hood and the connection with the furnace body, and an air curtain generating structure is arranged at the lower front of the furnace door smoke hood.

[0007] Preferably, the wind curtain generating structure includes a wind curtain cover, a fan and a pipeline, and the fan blows air from the wind curtain cover through the pipeline to form a wind curtain.

[0008] Preferably, the main body of the furnace door smoke hood is a steel smoke hood main body, and a layer of lining refractory castable is cast in the steel smoke hood main body.

[0009] Preferably, the furnace door smoke hood has an opening at the top for the furnace door hanger to pass through, and a furnace door hanger sealing plate is provided between the opening at the top of the furnace door smoke hood and the furnace door hanger.

[0010] Preferably, the end of the annular smoke collecting pipe is connected to a bag dust collector and a fan, and the bag of the bag dust collector is a polytetrafluoroethylene bag.

[0011] The beneficial effects of the present invention are as follows: the present invention adopts a small wall-mounted hood with an ingenious structure to replace the high-hanging hood and is installed above the smoke escape point of each furnace door of the anode furnace to improve the smoking effect; and adopts a steel smoke hood and refractory cast materials in the smoke pipe for heat insulation, and the back of the smoke hood is built with refractory bricks to increase its service life; and an air curtain is set to replace the place where it is inconvenient to set fixed baffles and movable baffles on the front of the smoke hood, thereby further improving its smoking effect; finally, the subsequent dust collection facilities are modified to be resistant to high temperature and explosion-proof, thereby improving the stability of the system and ensuring safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of an existing large high-hanging cover;

[0013] Figure 2 yes Figure 1 A left view of

[0014] Figure 3 It is a structural schematic diagram of the utility model;

[0015] Figure 4 yes Figure 3 A left view of

[0016] In the figure: 1. small door of anode furnace, 2. large door of anode furnace, 3. ring smoke collecting pipe, 4. furnace door smoke hood, 5. lining refractory castable, 6. refractory brick masonry layer, 7. air curtain generating structure, 8. furnace door hanger, 9. furnace door hanger sealing plate. DETAILED DESCRIPTION

[0017] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0018] Example: Figure 3 and Figure 4 As shown, a new and efficient furnace door and smoke hood device for a fixed anode furnace in the recycled copper industry includes a ring smoke collection pipe 3 and a furnace door and smoke hood 4. Furnace door and smoke hoods are respectively installed above the smoke escape points of the anode furnace small furnace door 1 and the anode furnace large furnace door 2. Each furnace door and smoke hood is connected to the ring smoke collection pipe. A layer of refractory castable lining 5 is cast inside the furnace door and smoke hood. A layer of refractory brick masonry 6 is provided between the lower back of the furnace door and smoke hood and the connection with the furnace body. An air curtain generating structure 7 is provided at the lower front of the furnace door and smoke hood. The refractory brick masonry layer is provided at the rear end of the furnace door and smoke hood, where smoke hood formation is inconvenient. Refractory brick masonry is used to form a non-metallic, high-temperature resistant smoke hood to enhance sealing.

[0019] The wind curtain generating structure includes a wind curtain cover, a fan and a pipe. The fan blows air from the wind curtain cover through the pipe to form a wind curtain.

[0020] The main body of the furnace door smoke hood is a steel smoke hood body, and a layer of lining refractory castable is poured into the steel smoke hood body.

[0021] The top of the furnace door smoke hood is opened for the passage of the furnace door hanger 8, and a furnace door hanger sealing plate 9 is provided between the top opening of the furnace door smoke hood and the furnace door hanger. The furnace door hanger sealing plate is used for sealing between the top opening of the furnace door smoke hood and the furnace door hanger.

[0022] The end of the ring smoke collecting pipe is connected to a bag dust collector and a fan. The bag dust collector uses polytetrafluoroethylene bags. Both the bag dust collector and the fan have been modified to be high temperature resistant and explosion-proof.

[0023] The utility model adopts a small wall-mounted hood with an ingenious structure to replace the high-hanging hood and is installed above the smoke escape point of each furnace door of the anode furnace to improve the smoking effect; and adopts refractory casting material in steel smoke hood and smoke pipe for heat insulation, and the back of the smoke hood is built with refractory bricks to increase its service life; and an air curtain is set to replace the place where it is inconvenient to set fixed baffles and movable baffles on the front of the smoke hood to further improve its smoking effect; finally, the subsequent dust collection facilities are modified to be resistant to high temperature and explosion-proof, so as to improve the stability of the system and ensure safety.

[0024] The device has a simple structure, low cost, and is easy to manufacture. It is suitable for collecting dust from the door ring of an anode furnace. The use of the device can effectively improve the low-altitude pollution problem at the door of an anode furnace and improve environmental protection. The use of the device can effectively collect valuable metals such as zinc oxide in smoke and reduce metal loss. The service life of the device is extended after the modification, which reduces the workload of maintenance and replacement, and is conducive to reducing costs and increasing efficiency.

[0025] The embodiment described above is only a preferred solution of the present invention and does not limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.

Claims

1. A new type of high-efficiency furnace door smoke hood device for a fixed anode furnace in the recycled copper industry, comprising a ring smoke collecting pipe and a furnace door smoke hood, characterized in that: A furnace door smoke hood is provided above the smoke escape point of each furnace door of the anode furnace, and each furnace door smoke hood is connected to a smoke collecting pipe. A layer of lining refractory castable is poured inside the furnace door smoke hood, a layer of refractory brick masonry layer is provided between the lower back of the furnace door smoke hood and the connection between the furnace body, and an air curtain generating structure is provided at the lower front of the furnace door smoke hood.

2. The novel high-efficiency furnace door and smoke hood device for a fixed anode furnace in the recycled copper industry according to claim 1 is characterized in that: The wind curtain generating structure includes a wind curtain cover, a fan and a pipeline. The fan blows air from the wind curtain cover through the pipeline to form a wind curtain.

3. The novel high-efficiency furnace door and smoke hood device for a fixed anode furnace in the recycled copper industry according to claim 1 is characterized in that: The main body of the furnace door smoke hood is a steel smoke hood main body, and a layer of lining refractory castable is poured into the steel smoke hood main body.

4. The novel high-efficiency furnace door and smoke hood device for a fixed anode furnace in the recycled copper industry according to claim 1 is characterized in that: The top opening of the furnace door smoke hood is used for the furnace door suspension rod to pass through, and a furnace door suspension rod sealing plate is provided between the top opening of the furnace door smoke hood and the furnace door suspension rod.

5. The novel high-efficiency furnace door and smoke hood device for a fixed anode furnace in the recycled copper industry according to claim 1 is characterized in that: The end of the annular smoke collecting pipe is connected to a bag dust collector and a fan, and the bag of the bag dust collector is a polytetrafluoroethylene bag.

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