A filter dust removal box for blast furnace gas

Abstract

This utility model discloses a dust removal and filtration box for blast furnace gas, relating to the field of blast furnace gas filtration and dust removal technology. The utility model includes a dust removal box, a cover plate, and dust collection pipes. An opening groove is formed on the upper surface of the dust removal box, and several through holes are formed on the lower surface. The cover plate is installed on the upper surface of the opening groove. The number of dust collection pipes corresponds to the number of through holes, and the dust collection pipes are slidably installed inside the through holes. A lithium battery is installed on the upper surface of the cover plate, and several electrostatic dust-attracting rods are fixedly installed on the lower surface of the cover plate. The electrostatic dust-attracting rods extend into the dust removal box through the opening groove, and their positions correspond to the positions of the dust collection pipes. The upper ends of the dust collection pipes extend into the dust removal box through the through holes. This utility model, through its lithium battery, electrostatic dust-attracting rods, and dust collection pipe structure, facilitates the electrostatic adsorption of dust particles in the gas, is not affected by the high temperature of the gas, ensures the dust removal effect of the device, and facilitates the collection of dust particles into the dust collection pipes after dust collection.

Description

Technical Field

[0001] This utility model belongs to the field of blast furnace gas filtration and dust removal technology, and in particular relates to a blast furnace gas filtration and dust removal box. Background Technology

[0002] Blast furnace gas is a combustible gas produced as a byproduct of blast furnace ironmaking. Its main components are carbon dioxide, carbon monoxide, hydrogen, and nitrogen, with an average dust generation of 50 kg / t (pig iron) - 75 kg / t (pig iron). The dust particles are smaller than 500 μm and mainly consist of iron, ferrous oxide, alumina, silicon oxide, magnesium oxide, and coke powder.

[0003] In existing technologies, dust collector bags are generally used for dust removal. However, the temperature of blast furnace gas is relatively high, and when it is discharged into the baghouse dust collector, it is in direct contact with the filter bags, which can easily cause aging, affecting the service life of the filter bags and the subsequent dust removal efficiency. Therefore, a filtration dust collector box for blast furnace gas is proposed to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a filter dust removal box for blast furnace gas to solve the existing problems.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a dust removal and filtration box for blast furnace gas, comprising a dust removal box, a cover plate, and dust collection pipes. The upper surface of the dust removal box has an opening groove, and the lower surface of the dust removal box has several through holes. The cover plate is installed on the upper surface of the opening groove. The number of dust collection pipes corresponds to the number of through holes, and the dust collection pipes are slidably installed inside the through holes. A lithium battery is installed on the upper surface of the cover plate, and several electrostatic dust-collecting rods are fixedly installed on the lower surface of the cover plate. The electrostatic dust-collecting rods are electrically connected to the lithium battery and extend into the dust removal box through the opening groove. The positions of the electrostatic dust-collecting rods correspond to the positions of the dust collection pipes, and the upper ends of the dust collection pipes extend into the dust removal box through the through holes.

[0007] Furthermore, a base plate is welded to the lower end of the dust collection pipe, and extension plates are welded to the two opposite surfaces of the base plate. Guide holes are opened on the upper surface of the two extension plates, and guide rods are slidably installed inside the two guide holes. The lower ends of the two guide rods extend to the bottom of the extension plates.

[0008] Furthermore, both sides of the upper surface of the two guide holes are provided with release grooves, and two snap-fit ​​plates are welded to the lower ends of the two guide rods. The two snap-fit ​​plates and the two release grooves are distributed crosswise.

[0009] Furthermore, connecting plates are slidably installed on the periphery of the two guide rods, one end of the two connecting plates is fixedly connected to the dust collection box, and limit plates are welded to the upper surface of the two connecting plates.

[0010] Furthermore, each of the four first fastening bolts is screwed onto the upper surface of the cover plate, and one end of each of the four first fastening bolts penetrates the upper surface of the cover plate and is screwed and fixed to the dust removal box. Positioning plates are welded to both ends of the lower surface of the lithium battery.

[0011] Furthermore, each of the two positioning plates is screwed with a second fastening bolt, one end of which penetrates the upper surface of the positioning plate and is screwed and fixed between the two second fastening bolts and the cover plate.

[0012] Furthermore, an air inlet pipe is welded to one surface of the dust collector, one end of which is connected to the inside of the dust collector, and a connecting flange is welded to the other end of the air inlet pipe, which is connected to the gas generator port through the connecting flange.

[0013] Furthermore, an exhaust pipe is welded to the other surface of the dust collector, one end of which is connected to the interior of the dust collector, and a dust collection screen is movably installed inside the exhaust pipe.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model uses a lithium battery, an electrostatic dust-collecting rod, and a dust collection tube to facilitate the electrostatic adsorption of dust particles in coal gas. It is not affected by the high temperature of the coal gas, ensuring the dust removal effect of the device. At the same time, it is convenient to collect the dust particles into the dust collection tube after the dust collection is completed, which facilitates the later cleaning and improves the ease of use of the device.

[0016] 2. This utility model, through the guide hole and guide rod structure, facilitates the upward movement of the auxiliary dust collection tube and its stable docking with the electrostatic dust collection rod, which is convenient for dust collection. At the same time, through the release groove and snap-fit ​​plate structure, it is convenient to adjust the connection and release of the guide rod and the extension plate, which makes it easy to remove the dust collection tube for cleaning after the dust collection is completed.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1This is a schematic diagram of the structure of a blast furnace gas filter dust removal box according to the present invention;

[0020] Figure 2 This is a top view schematic diagram of a blast furnace gas filter dust removal box according to the present invention;

[0021] Figure 3 This utility model Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0022] Figure 4 This is a front view structural diagram of a blast furnace gas filter dust removal box according to the present invention.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Dust collection box; 101. Opening slot; 102. Through hole; 2. Cover plate; 201. Lithium battery; 202. Positioning plate; 203. First fastening bolt; 204. Second fastening bolt; 205. Electrostatic dust suction rod; 3. Dust collection pipe; 301. Base plate; 302. Extension plate; 303. Guide hole; 304. Guide rod; 305. Release groove; 306. Snap-fit ​​plate; 307. Connecting plate; 308. Limiting plate; 4. Air inlet pipe; 5. Connecting flange; 6. Exhaust pipe; 7. Dust collection screen. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Please see Figures 1-4As shown, this utility model is a dust removal and filtration box for blast furnace gas, including a dust removal box 1, a cover plate 2, and dust collection pipes 3. An opening groove 101 is formed on the upper surface of the dust removal box 1, and several through holes 102 are formed on the lower surface of the dust removal box 1. The cover plate 2 is installed on the upper surface of the opening groove 101. The number of dust collection pipes 3 corresponds to the number of through holes 102, and the dust collection pipes 3 are slidably installed inside the through holes 102. A lithium battery 201 is installed on the upper surface of the cover plate 2, and several electrostatic dust-attracting rods 205 are fixedly installed on the lower surface of the cover plate 2. 5 is electrically connected to the lithium battery 201. The electrostatic dust suction rod 205 extends into the dust collection box 1 through the opening slot 101. The position of the electrostatic dust suction rod 205 corresponds to the position of the dust collection pipe 3. The upper end of the dust collection pipe 3 extends into the dust collection box 1 through the through hole 102, which facilitates the electrostatic adsorption of dust particles in the gas. It is not affected by the high temperature of the gas, ensuring the dust removal effect of the device. At the same time, it is convenient to collect the dust particles into the dust collection pipe 3 after the dust collection is completed, which facilitates the later cleaning and improves the ease of use of the device.

[0028] A base plate 301 is welded to the lower end of the dust collection pipe 3. An extension plate 302 is welded to both opposite surfaces of the base plate 301. Guide holes 303 are opened on the upper surface of the two extension plates 302. Guide rods 304 are slidably installed inside the two guide holes 303 to facilitate the upward movement of the auxiliary dust collection pipe 3 and to make stable docking with the electrostatic dust suction rod 205, so as to facilitate the collection of dust. The lower ends of the two guide rods 304 extend to the bottom of the extension plate 302.

[0029] Both sides of the upper surface of the two guide holes 303 are provided with release grooves 305. Two snap-fit ​​plates 306 are welded to the lower end of the two guide rods 304. The two snap-fit ​​plates 306 and the two release grooves 305 are distributed in a cross pattern to facilitate the adjustment of the connection and disconnection between the guide rods 304 and the extension plate 302, and to facilitate the removal and cleaning of the dust collection pipe 3 after the dust collection is completed.

[0030] Two guide rods 304 are slidably mounted with connecting plates 307 on their sides. One end of each connecting plate 307 is fixedly connected to the dust collection box 1. Limiting plates 308 are welded to the upper surface of each connecting plate 307.

[0031] The upper surface of the cover plate 2 is screwed with first fastening bolts 203 on all sides. One end of each of the four first fastening bolts 203 penetrates the upper surface of the cover plate 2 and is screwed and fixed between the cover plate 2 and the dust removal box 1. Positioning plates 202 are welded to both ends of the lower surface of the lithium battery 201.

[0032] The upper surfaces of the two positioning plates 202 are each screwed with a second fastening bolt 204. One end of each second fastening bolt 204 passes through the upper surface of the positioning plate 202 and is screwed and fixed between it and the cover plate 2.

[0033] A gas inlet pipe 4 is welded to one surface of the dust collector 1. One end of the gas inlet pipe 4 is connected to the inside of the dust collector 1, and a connecting flange 5 is welded to the other end of the gas inlet pipe 4. The other end of the gas inlet pipe 4 is connected to the gas generation port through the connecting flange 5. An exhaust pipe 6 is welded to the other surface of the dust collector 1. One end of the exhaust pipe 6 is connected to the inside of the dust collector 1, and a dust collection screen 7 is movably installed inside the exhaust pipe 6.

[0034] Please see Figures 1-4 As shown, this utility model is a dust removal and filtration box for blast furnace gas. Its usage is as follows: First, connect the inlet pipe 4 to the blast furnace gas generation port via the connecting flange 5. Then, start the lithium battery 201 to power the electrostatic dust collector 205, causing the electrostatic dust collector 205 to generate static electricity. Simultaneously, control the power supply of the lithium battery 201 to the electrostatic dust collector 205 to avoid excessive static energy. When the blast furnace gas enters the dust removal box 1, the electrostatic dust collector 205 adsorbs the dust particles inside the blast furnace gas. After adsorption is complete, the blast furnace gas passes through the exhaust pipe 6. Exhaust the dust, then push the base plate 301 upwards, causing the dust collection tube 3 to move upwards and wrap around the electrostatic dust collector 205. Then turn off the lithium battery 201 to dissipate the static electricity of the electrostatic dust collector 205, at which point the dust particles fall into the dust collection tube 3. Then lower the base plate 301 and the dust collection tube 3 to the bottom. At this time, rotate the two guide rods 304 so that the two snap-fit ​​plates 306 are aligned with the positions of the two release slots 305. At this time, the extension plate 302 can be disengaged from the guide rods 304, and the dust collection tube 3 can be disassembled for cleaning. After cleaning, the dust collection tube 3 is reinstalled.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A dust removal and filtration box for blast furnace gas, comprising a dust removal box (1), a cover plate (2), and a dust collection pipe (3), characterized in that: The dust collection box (1) has an opening groove (101) on its upper surface and several through holes (102) on its lower surface. The cover plate (2) is installed on the upper surface of the opening groove (101). The number of dust collection pipes (3) corresponds to the number of through holes (102). The dust collection pipes (3) are slidably installed inside the through holes (102). A lithium battery (201) is installed on the upper surface of the cover plate (2). Several electrostatic dust collection rods (205) are fixedly installed on the lower surface of the cover plate (2). The electrostatic dust collection rods (205) are electrically connected to the lithium battery (201). The electrostatic dust collection rods (205) extend into the dust collection box (1) through the opening groove (101). The position of the electrostatic dust collection rods (205) corresponds to the position of the dust collection pipes (3). The upper end of the dust collection pipes (3) extends into the dust collection box (1) through the through holes (102).

2. The blast furnace gas filter dust removal box according to claim 1, characterized in that, The dust collection pipe (3) is welded to a base plate (301) at its lower end. An extension plate (302) is welded to both opposite surfaces of the base plate (301). Guide holes (303) are opened on the upper surfaces of the two extension plates (302). Guide rods (304) are slidably installed inside the two guide holes (303). The lower ends of the two guide rods (304) extend to the bottom of the extension plate (302).

3. A blast furnace gas filtration and dust removal box according to claim 2, characterized in that, The two guide holes (303) have release grooves (305) on both sides of their upper surfaces. The two guide rods (304) have two snap-fit ​​plates (306) welded to their lower ends. The two snap-fit ​​plates (306) and the two release grooves (305) are distributed intersectingly.

4. A blast furnace gas filter dust removal box according to claim 3, characterized in that, Two guide rods (304) are slidably mounted with connecting plates (307) on their periphery. One end of the two connecting plates (307) is fixedly connected to the dust collection box (1). Limiting plates (308) are welded to the upper surface of the two connecting plates (307).

5. A blast furnace gas filter dust removal box according to claim 1, characterized in that, The cover plate (2) has four first fastening bolts (203) screwed around its upper surface. One end of each of the four first fastening bolts (203) passes through the upper surface of the cover plate (2) and is screwed between the cover plate (2) and the dust collector (1). The lower surfaces of the lithium battery (201) are welded with positioning plates (202).

6. A blast furnace gas filtration and dust removal box according to claim 5, characterized in that, The upper surfaces of the two positioning plates (202) are each screwed with a second fastening bolt (204), and one end of the two second fastening bolts (204) penetrates the upper surface of the positioning plate (202) and is screwed and fixed to the cover plate (2).

7. A blast furnace gas filter dust removal box according to claim 1, characterized in that, The dust collector (1) has an air inlet pipe (4) welded to one surface. One end of the air inlet pipe (4) is connected to the inside of the dust collector (1), and the other end of the air inlet pipe (4) is welded to a connecting flange (5). The other end of the air inlet pipe (4) is connected to the gas generator through the connecting flange (5).

8. A blast furnace gas filter dust removal box according to claim 1, characterized in that, An exhaust pipe (6) is welded to the other surface of the dust collector (1). One end of the exhaust pipe (6) is connected to the inside of the dust collector (1). A dust collection net (7) is movably installed inside the exhaust pipe (6).

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