Furnace top gas recovery, dust removal and noise reduction device for blast furnace ironmaking

Abstract

The utility model discloses a furnace top gas recovery dedusting noise reduction device for blast furnace ironmaking, which comprises a device body, a rope, a first filter screen layer, moving wheels, an external pipe and a third filter screen layer, the left side of the device body is connected with a gas inlet pipe, the right side of the device body is connected with a gas outlet pipe, the first filter screen layer is arranged in the device body, and the second filter screen layer is arranged in the device body. A first filter screen layer is arranged in the device body, a second filter screen layer is arranged in the device body, the second filter screen layer is arranged on the right side of the first filter screen layer, a collecting box is arranged in the device body in a penetrating mode, and the collecting box is arranged below the second filter screen layer. According to the furnace top gas recovery, dust removal and noise reduction device for blast furnace ironmaking, gas enters the device body, dust in the gas can be filtered through the first filter screen layer and the second filter screen layer, the rope drives the swing ball to impact the first filter screen and the second filter screen under the action of the gas, the filtered dust slides down, and the permeability of the filtered dust is kept; water is sprayed under the action of a liquid conveying pump and a spraying pipe to perform wet dust removal on gas, and the dust removal effect is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of blast furnace ironmaking, specifically to a blast furnace top gas recovery, dust removal, and noise reduction device for blast furnace ironmaking. Background Technology

[0002] Blast furnace gas is a byproduct of blast furnace ironmaking. Its main components consist of approximately 20-30% combustible components, have a low calorific value, and a high dust content. As blast furnace gas is the most abundant waste gas emitted in metallurgical processes, besides being used directly for combustion within metallurgical enterprises, many methods for recovering and utilizing blast furnace gas have been developed. However, most blast furnace top venting gas is directly released into the air, wasting energy and polluting the environment. When recovering blast furnace top venting gas, dust removal is necessary. Since the blast furnace top venting gas carries heat, most dust treatment devices cannot reuse this heat, resulting in heat waste. Therefore, a dust removal and noise reduction device for blast furnace top gas recovery in ironmaking is needed to solve these problems. Utility Model Content

[0003] This addresses the problem mentioned in the background art: because the coal released during the pressure equalization venting from the blast furnace top carries a certain amount of heat, and most blast furnace top pressure equalization venting dust treatment devices cannot reuse this heat, resulting in heat waste.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a dust removal and noise reduction device for blast furnace top gas recovery in ironmaking, comprising a device body, ropes, a first filter layer, moving wheels, an external pipe, and a third filter layer.

[0005] An air inlet pipe is connected to the left side of the device body, and an air outlet pipe is connected to the right side of the device body.

[0006] The first filter layer is disposed inside the device body, and a second filter layer is disposed inside the device body. The second filter layer is disposed to the right of the first filter layer. A collection box is disposed through the device body and is disposed below the second filter layer.

[0007] Preferably, the device body includes an outer shell, an inner shell, a sound-absorbing layer, and a sound-insulating layer, wherein an inner shell is disposed inside the outer shell, a sound-absorbing layer is disposed inside the inner shell, and a sound-insulating layer is disposed between the inner shell and the outer shell.

[0008] By adopting the above technical solutions, the impact of noise on the outside world is reduced through the action of sound-absorbing and sound-insulating layers.

[0009] Preferably, the rope is located at the top of the device body, and the lower end of the rope is connected to a pendulum ball, which corresponds to the first filter layer and the second filter layer respectively.

[0010] By adopting the above technical solution, the first filter layer and the second filter layer can filter dust in the gas.

[0011] Preferably, the movable wheel is located at the lower end of the collection box, and a hand-tightening bolt is provided through the rear side of the collection box, with one end of the hand-tightening bolt threaded onto the device body.

[0012] By adopting the above technical solution, the falling dust can be collected through the collection box.

[0013] Preferably, the outer pipe is disposed through the body of the device, and heat transfer plates are staggered inside the outer pipe. The outer pipe is located on the right side of the second filter layer.

[0014] By adopting the above technical solution, the heat transfer plate can increase the heat exchange between the inside of the external pipe and the inside of the device.

[0015] Preferably, the third filter layer is disposed inside the device body and is disposed on the right side of the external pipe. An infusion pump is disposed inside the device body and is disposed below the third filter layer. The infusion pump is connected to the spray pipe.

[0016] By adopting the above technical solution, the third filter layer can filter and recycle the sprayed water.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: This blast furnace top gas recovery, dust removal, and noise reduction device has the following advantages:

[0018] 1. When gas enters the device, it can filter dust through the first and second filter layers. The rope drives the pendulum ball to impact the first and second filter layers under the action of the gas, causing the filtered dust to slide off and maintaining its permeability. Water is sprayed under the action of the infusion pump and spray pipe to perform wet dust removal on the gas, thereby improving the dust removal effect.

[0019] 2. It is equipped with a sound-absorbing layer and a sound-insulating layer to reduce the impact of noise on the outside world. The medium can be introduced into the external pipe to exchange heat with the gas inside the device, utilizing the heat of the exhaust gas and reducing heat waste. The heat transfer plate increases its heat exchange area and improves the heat exchange effect. The collection box can be pulled out for cleaning by using the casters by periodically disassembling and loosening the hand-tightening bolts. Attached Figure Description

[0020] Figure 1 This is a frontal cross-sectional view of the present invention.

[0021] Figure 2 This is a schematic diagram of the left side of the collection box of this utility model;

[0022] Figure 3 This is a partial cross-sectional structural diagram of the device body of this utility model;

[0023] Figure 4 This is a schematic diagram of the external pipe and heat transfer plate structure of this utility model.

[0024] In the diagram: 1. Device body; 101. Outer shell; 102. Inner shell; 103. Sound-absorbing layer; 104. Sound-insulating layer; 2. Air inlet pipe; 3. Air outlet pipe; 4. Rope; 5. Pendulum; 6. First filter layer; 7. Second filter layer; 8. Collection box; 9. Moving wheel; 10. Hand-tightened bolt; 11. External pipe; 12. Heat transfer plate; 13. Infusion pump; 14. Spray pipe; 15. Third filter layer. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-4 This utility model provides a technical solution: a dust removal and noise reduction device for blast furnace top gas recovery in ironmaking, such as... Figure 1 and Figure 3 As shown, the device body 1 has an air inlet pipe 2 connected to the left side and an air outlet pipe 3 connected to the right side. The device body 1 includes an outer shell 101, an inner shell 102, a sound-absorbing layer 103, and a sound-insulating layer 104. The inner shell 102 is disposed inside the outer shell 101, the sound-absorbing layer 103 is disposed inside the inner shell 102, and the sound-insulating layer 104 is disposed between the inner shell 102 and the outer shell 101. The device body 1 improves the noise reduction effect and reduces the impact of noise on the outside world under the action of the sound-absorbing layer 103 and the sound-insulating layer 104. The rope 4 is disposed on the top of the device body 1, and the lower end of the rope 4 is connected to a pendulum ball 5. The pendulum ball 5 corresponds to the first filter layer 6 and the second filter layer 7 respectively. Under the action of the rope 4, the pendulum ball 5 swings and can impact the first filter layer 6 and the second filter layer 7, so that the filtered dust slides off and maintains its permeability.

[0027] like Figure 1 As shown, the first filter layer 6 is disposed inside the device body 1, and the second filter layer 7 is disposed inside the device body 1. The second filter layer 7 is disposed to the right of the first filter layer 6. A collection box 8 is disposed through the device body 1 and is disposed below the second filter layer 7.

[0028] like Figure 1 and Figure 2As shown, the movable wheel 9 is located at the lower end of the collection box 8, and a hand-tightening bolt 10 is installed through the rear side of the collection box 8. At the same time, one end of the hand-tightening bolt 10 is threaded to the device body 1. The collection box 8 can collect dust. By loosening the hand-tightening bolt 10, the collection box 8 can be pulled out through the movable wheel 9 for internal cleaning.

[0029] like Figure 1 and Figure 4 As shown, the external pipe 11 is installed through the device body 1, and heat transfer plates 12 are staggered inside the external pipe 11. At the same time, the external pipe 11 is located on the right side of the second filter layer 7. Water medium can be introduced into the external pipe 11 to exchange heat with the device body 1, utilizing the heat of the exhaust gas inside the device body 1 and reducing heat waste. The heat transfer plates 12 increase the heat exchange area and improve the heat exchange effect.

[0030] like Figure 1 As shown, the third filter layer 15 is disposed inside the device body 1 and is located on the right side of the external pipe 11. A liquid pump 13 is disposed inside the device body 1 and is located below the third filter layer 15. The liquid pump 13 is connected to the spray pipe 14. Under the action of the liquid pump 13 and the spray pipe 14, water is sprayed to perform wet dust suppression treatment on the dust in the gas. The third filter layer 15 can filter and recycle the sprayed water.

[0031] When the power is turned on, the gas enters the device body 1 through the air inlet pipe 2 and is filtered by the first filter layer 6 and the second filter layer 7. The rope 4 drives the pendulum ball 5 to swing and hit the first filter layer 6 and the second filter layer 7 under the action of the gas, causing the dust to fall off and maintaining its permeability. The dust is collected by the collection box 8. The heat in the gas can be exchanged with the medium in the external pipe 11. The heat transfer plate 12 improves the heat exchange effect. Water is sprayed under the action of the infusion pump 13 and the spray pipe 14 to wet dust in the gas. The third filter layer 15 can filter and recycle the sprayed water. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0032] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A dust removal and noise reduction device for blast furnace top gas recovery in ironmaking, comprising a device body (1), a rope (4), a first filter layer (6), a moving wheel (9), an external pipe (11), and a third filter layer (15), characterized in that: An air inlet pipe (2) is connected to the left side of the device body (1), and an air outlet pipe (3) is connected to the right side of the device body (1). The first filter layer (6) is disposed inside the device body (1), and the second filter layer (7) is disposed inside the device body (1). The second filter layer (7) is disposed to the right of the first filter layer (6). A collection box (8) is disposed through the device body (1), and the collection box (8) is disposed below the second filter layer (7).

2. The blast furnace top gas recovery, dust removal, and noise reduction device according to claim 1, characterized in that: The device body (1) includes an outer shell (101), an inner shell (102), a sound-absorbing layer (103), and a sound-insulating layer (104). The inner shell (102) is disposed inside the outer shell (101), the sound-absorbing layer (103) is disposed inside the inner shell (102), and the sound-insulating layer (104) is disposed between the inner shell (102) and the outer shell (101).

3. The blast furnace top gas recovery, dust removal, and noise reduction device according to claim 1, characterized in that: The rope (4) is set at the top of the device body (1), and the lower end of the rope (4) is connected to a pendulum ball (5). The pendulum ball (5) corresponds to the first filter layer (6) and the second filter layer (7) respectively.

4. The blast furnace top gas recovery, dust removal, and noise reduction device according to claim 1, characterized in that: The movable wheel (9) is located at the lower end of the collection box (8), and a hand-tightening bolt (10) is provided through the rear side of the collection box (8). At the same time, one end of the hand-tightening bolt (10) is threadedly connected to the device body (1).

5. The blast furnace top gas recovery, dust removal, and noise reduction device according to claim 1, characterized in that: The external pipe (11) is installed inside the device body (1), and heat transfer plates (12) are interlaced inside the external pipe (11). At the same time, the external pipe (11) is located on the right side of the second filter layer (7).

6. The blast furnace top gas recovery, dust removal, and noise reduction device according to claim 1, characterized in that: The third filter layer (15) is located inside the device body (1) and is located on the right side of the external pipe (11). An infusion pump (13) is installed inside the device body (1) and is located below the third filter layer (15). The infusion pump (13) is connected to the spray pipe (14).

Images