Flow control device of electric arc furnace conductive arm accessory electrode spraying ring

Abstract

The utility model discloses a flow control device of an electric arc furnace conductive arm accessory electrode spray ring, which comprises a flow control valve and a filtering mechanism, and the filtering mechanism comprises a flange ring A, a row pipe, a vertical cylinder, a connecting pipe, a flange ring B, a D-shaped paired plate, a main paired plate, a paired plate, an inclined sheet, a vertical support rod, a vertical plate rotary column and a top cover, a filtering mechanism is arranged at a flow control valve for controlling flow of the electric arc furnace conductive arm accessory electrode spraying ring, and the flow control valve can be connected with a water supply pipeline flange of the electric arc furnace conductive arm accessory electrode spraying ring through the filtering mechanism to supply water. The filtering mechanism can filter water with pressure and then flow into the electric arc furnace conductive arm accessory electrode spraying ring for water supply spraying after flow control of the flow control valve, and the problem that more water with impurities enters the electric arc furnace conductive arm accessory electrode spraying ring to generate incrustation scale and block holes is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of electrode spray ring flow control, in particular to a flow control device for an electrode spray ring of an auxiliary part of an electric arc furnace conductive arm. Background Art

[0002] The conductive arm is made of copper-steel composite plate or aluminum-steel composite plate with a rectangular cross-section and water cooling inside. It eliminates the water-cooled conductive copper tube, many insulating links between the electrode clamp and the cross arm, greatly simplifying the application of the conductive arm accessories in ultra-high power electric arc furnaces. The electrode spray ring of the conductive arm accessories needs to be sprayed during the electric furnace steelmaking process. During the production and operation of the electric arc furnace, in order to control the spray flow of the electrode spray ring of the conductive arm accessories, the technicians choose to install a flow control valve at the water inlet pipe of the electrode spray ring. The flow control valve controls the spray flow of the flow electrode spray ring by adjusting the opening degree of the valve plate in the valve through the electric actuator.

[0003] When the control valve of the spray ring adjusts the flow rate to transport liquid, water with impurities is easily introduced into the control valve, which makes the spray ring prone to scale formation in a high temperature environment, resulting in water blockage at the spray hole of the spray ring, thereby affecting the normal spraying operation of the spray ring and increasing the operating cost of the electric furnace. For this reason, we propose a flow control device for the electrode spray ring of the conductive arm auxiliary part of the electric arc furnace. Utility Model Content

[0004] The main purpose of the utility model is to provide a flow control device for an auxiliary electrode spray ring of an electric arc furnace conductive arm. An inlet filter mechanism is arranged at a flow control valve for controlling the flow of the auxiliary electrode spray ring of the electric arc furnace conductive arm. The connecting pipe of the inlet filter mechanism can be flange-connected with the flange of the flow control valve in cooperation with bolts and nuts by means of flange ring A. Then, the connecting pipe can be flange-connected with the water supply pipe of the auxiliary electrode spray ring of the electric arc furnace conductive arm by means of flange ring B for water supply. The inlet filter mechanism can filter pressurized water. The filtered water flows into the auxiliary electrode spray ring of the electric arc furnace conductive arm for water supply spraying after the flow is controlled by the flow control valve, thereby preventing a large amount of water with impurities from entering the auxiliary electrode spray ring of the electric arc furnace conductive arm to cause scale clogging of the holes. The problems in the background technology can be effectively solved.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A flow control device for an auxiliary electrode spray ring of an electric arc furnace conductive arm comprises a flow control valve and an inlet filter mechanism, wherein the inlet filter mechanism comprises a flange ring A, a row of pipes, a vertical tube, an inlet pipe, a flange ring B, a D-shaped pair of plates, a main pair of plates, a matching plate, an inclined sheet, a vertical support rod, a vertical plate swivel column and a top cover, wherein the water inlet flange of the flow control valve is flange-connected with a flange ring A welded outside the row of pipes, and the outer pipe opening of the row of pipes away from the flange ring A is welded to the inlet pipe through a vertical tube, and the row of pipes is welded to the inlet pipe through a vertical tube, and the inlet pipe is welded to the flange ring A through a vertical tube, and the inlet pipe is welded to the flange ring B ... A flange ring B is welded to the outer pipe mouth of the inlet pipe away from the vertical cylinder, a swivel column welded below the top cover is screwed into the mouth of the vertical cylinder, and D-shaped pairs of plates are symmetrically welded in the vertical cylinder below the swivel column, main pairs of plates are vertically symmetrically welded between the D-shaped pairs of plates, and matching plates are vertically symmetrically welded between the D-shaped pairs of plates outside the main pairs of plates, oblique sheets are obliquely welded between the two groups of plate bodies of the main pairs of plates and the matching plates, and an ultrafiltration membrane plate is inserted between the main pairs of plates and the matching plates, and a conical guide cover is welded in the pipe mouth of the inlet pipe.

[0007] Furthermore, vertical support rods are inserted into the ultrafiltration membrane plate, and vertical plates are fixed at the bottom of the vertical support rods and the ultrafiltration membrane plate, and the vertical support rods and the vertical plates are inserted between the main pair plate and the matching plate; the frame formed by the vertical support plates and the vertical plates can provide skeleton-type support for the ultrafiltration membrane plate.

[0008] Furthermore, a water-passing gap is reserved at the inclined pieces between the two sets of plate bodies of each of the main pair of plates and the matching plate; the inclined water-passing gap between the inclined pieces allows for smooth water flow.

[0009] Furthermore, the connecting pipe and the connecting pipe have the same lumen size, and are symmetrically welded and interconnected outside the vertical tube; the connecting pipe and the connecting pipe can smoothly pass water in opposite directions at the vertical tube.

[0010] Furthermore, a horizontal handle is welded to the upper surface of the top cover; the horizontal handle at the top cover can be held by hand to rotate the top cover.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model provides a filter inlet mechanism at the flow control valve for controlling the flow of an auxiliary electrode spray ring of an electric arc furnace conductive arm; the connecting pipe of the filter inlet mechanism can be flange-connected with the flange of the flow control valve in cooperation with bolts and nuts by means of a flange ring A; then the connecting pipe can be flange-connected with the water supply pipe of the auxiliary electrode spray ring of the electric arc furnace conductive arm by means of a flange ring B for water supply; the filter inlet mechanism can filter pressurized water; the filtered water flows into the auxiliary electrode spray ring of the electric arc furnace conductive arm for water supply spraying after the flow is controlled by the flow control valve, thereby preventing a large amount of water with impurities from entering the auxiliary electrode spray ring of the electric arc furnace conductive arm to cause scale plugging of the holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1It is a schematic diagram of the separation of the vertical cylinder and the rotating column of the electrode spray ring, an auxiliary component of the conductive arm of an electric arc furnace according to the utility model.

[0014] Figure 2 The utility model discloses an exploded view of the filter inlet mechanism of a flow control device of an auxiliary electrode spray ring of an electric arc furnace conductive arm.

[0015] Figure 3 The utility model is a schematic diagram of the overall structure of a flow control device for an auxiliary electrode spray ring of an electric arc furnace conductive arm.

[0016] In the figure: 1. flow control valve; 2. filter inlet mechanism; 3. flange ring A; 4. row pipe; 5. vertical cylinder; 6. connecting pipe; 7. flange ring B; 8. D-shaped pair plate; 9. main pair plate; 10. matching plate; 11. inclined plate; 12. ultrafiltration membrane plate; 13. vertical support rod; 14. vertical plate; 15. swivel column; 16. top cover; 17. horizontal handle. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0018] like Figure 1-3 As shown, a flow control device for an electrode spray ring of an auxiliary part of an electric arc furnace conductive arm comprises a flow control valve 1 and a filter inlet mechanism 2, wherein the filter inlet mechanism 2 comprises a flange ring A3, a continuous row of pipes 4, a vertical tube 5, an inlet pipe 6, a flange ring B7, a D-shaped pair of plates 8, a main pair of plates 9, a matching plate 10, an inclined sheet 11, a vertical support rod 13, a vertical plate 14, a swivel column 15 and a top cover 16, wherein the water inlet flange of the flow control valve 1 is flange-connected with a flange ring A3 welded to the outside of the continuous row of pipes 4, and the outer pipe opening of the continuous row of pipes 4 away from the flange ring A3 is welded to the inlet pipe 6 through the vertical tube 5, and the A flange ring B7 is welded to the outer pipe mouth of the connecting pipe 6 away from the vertical cylinder 5, a swivel column 15 welded below the top cover 16 is screwed into the tube mouth of the vertical cylinder 5, and D-shaped pairs of plates 8 are symmetrically welded in the vertical cylinder 5 below the swivel column 15, main pairs of plates 9 are vertically symmetrically welded between the D-shaped pairs of plates 8, and matching plates 10 are vertically symmetrically welded between the D-shaped pairs of plates 8 outside the main pairs of plates 9, oblique sheets 11 are obliquely welded between the two groups of plate bodies of the main pairs of plates 9 and the matching plates 10, and an ultrafiltration membrane plate 12 is inserted between the main pairs of plates 9 and the matching plates 10, and a conical guide cover is welded in the pipe mouth of the connecting pipe 6.

[0019] Among them, a vertical support rod 13 is inserted into the ultrafiltration membrane plate 12, and a vertical plate 14 is fixed to the bottom of the vertical support rod 13 and the ultrafiltration membrane plate 12, and the vertical support rod 13 and the vertical plate 14 are inserted between the main pair plate 9 and the matching plate 10; the frame formed by the vertical support plate 13 and the vertical plate 14 can provide skeletal support for the ultrafiltration membrane plate 12.

[0020] Wherein, a water-passing gap is reserved at the inclined pieces 11 between the two sets of plate bodies of each of the main pair of plates 9 and the matching plate 10; the inclined water-passing gap between the inclined pieces 11 allows for smooth water passing.

[0021] The connecting pipe 6 and the row of pipes 4 have the same lumen size, and are symmetrically welded and interconnected outside the vertical tube 5 ; the connecting pipe 6 and the row of pipes 4 can smoothly pass water in opposite directions at the vertical tube 5 .

[0022] A horizontal handle 17 is welded to the upper surface of the top cover 16 ; the horizontal handle 17 on the top cover 16 can be grasped by a person to rotate the top cover 16 .

[0023] It should be noted that the utility model is a flow control device for an auxiliary electrode spray ring of an electric arc furnace conductive arm. A filter inlet mechanism 2 is arranged at a flow control valve 1 for controlling the flow of the auxiliary electrode spray ring of the conductive arm of the electric arc furnace. The connecting pipe 4 of the filter inlet mechanism 2 can be flange-connected with the flange of the flow control valve 1 by means of a flange ring A3 in cooperation with bolts and nuts. Then, the connecting pipe 6 can be flange-connected with the water supply pipe of the auxiliary electrode spray ring of the conductive arm of the electric arc furnace by means of a flange ring B7 for water supply. When water enters the vertical cylinder 5 from the connecting pipe 6, the water rushes toward the ultrafiltration membrane plate 12 from the inclined sheet 11 between the matching plates 10. The frame formed by the vertical support plate 13 and the vertical plate 14 at the ultrafiltration membrane plate 12 can provide a skeleton-type ultrafiltration membrane plate 12. Support, and then the water filtered by the ultrafiltration membrane plate 12 can be flushed into the continuous pipe 4 from the inclined plate 11 between the main pair of plates 9 and enter the flow control valve 1. The filtered water flows into the electrode spray ring of the auxiliary part of the conductive arm of the electric arc furnace for water supply spraying after the flow control of the flow control valve 1. After the ultrafiltration membrane plate 12 has been filtered for a long time, the water source at the water supply pipeline of the auxiliary electrode spray ring of the conductive arm of the electric arc furnace can be closed, and then the horizontal handle 17 is held to screw the rotary column 15 under the top cover 16 out of the vertical cylinder 5, and then the ultrafiltration membrane plate 12 is extracted and taken away, and a new ultrafiltration membrane plate 12 equipped with a vertical support plate 13 and a vertical plate 14 is taken and placed between the main pair of plates 9 and the matching plate 10, and then the rotary column 15 is re-installed, and the flow control valve 1 can be provided with clean water again.

[0024] It should be noted that the utility model is a flow control device for the electrode spray ring of the conductive arm auxiliary part of an electric arc furnace. The components in the utility model are all components known to technical personnel in this field, and their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods.

[0025] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A flow control device for an auxiliary electrode spray ring of an electric arc furnace conductive arm, comprising a flow control valve (1), characterized in that: The invention also comprises a filter inlet mechanism (2), wherein the filter inlet mechanism (2) comprises a flange ring A (3), a row of pipes (4), a vertical tube (5), an inlet pipe (6), a flange ring B (7), a D-shaped pair of plates (8), a main pair of plates (9), a matching plate (10), an inclined plate (11), a vertical support rod (13), a vertical plate (14), a swivel column (15) and a top cover (16); the water inlet flange of the flow control valve (1) is flange-connected with the flange ring A (3) welded to the outside of the row of pipes (4); and the outer pipe opening of the row of pipes (4) away from the flange ring A (3) is welded to the inlet pipe (6) through the vertical tube (5); and the outer pipe opening of the inlet pipe (6) away from the vertical tube (5) is connected to the flange ring A (3) by welding. A flange ring B (7) is welded to the mouth of the vertical cylinder (5); a rotating column (15) welded below the top cover (16) is screwed into the mouth of the vertical cylinder (5); and a D-shaped pair of plates (8) are symmetrically welded inside the vertical cylinder (5) below the rotating column (15); a main pair of plates (9) are vertically symmetrically welded between the D-shaped pair of plates (8); and a matching plate (10) is vertically symmetrically welded between the D-shaped pair of plates (8) outside the main pair of plates (9); oblique sheets (11) are obliquely welded between the two groups of plate bodies of the main pair of plates (9) and the matching plate (10); and an ultrafiltration membrane plate (12) is inserted between the main pair of plates (9) and the matching plate (10); and a conical guide cover is welded inside the pipe mouth of the connecting pipe (6).

2. The flow control device for the electrode spray ring of the auxiliary part of the conducting arm of an electric arc furnace according to claim 1, characterized in that: A vertical support rod (13) is inserted into the ultrafiltration membrane plate (12), and a vertical plate (14) is fixed to the bottom of the vertical support rod (13) and the ultrafiltration membrane plate (12), and the vertical support rod (13) and the vertical plate (14) are inserted between the main pair plate (9) and the matching plate (10).

3. The flow control device for the electrode spray ring of the auxiliary part of the conducting arm of an electric arc furnace according to claim 1, characterized in that: A water-passing gap is reserved at the inclined plates (11) between the two groups of plate bodies of the main pair of plates (9) and the matching plate (10).

4. The flow control device for the electrode spray ring of the auxiliary part of the conducting arm of an electric arc furnace according to claim 1, characterized in that: The connecting pipe (6) and the connecting pipe (4) have the same lumen size, and the connecting pipe (6) and the connecting pipe (4) are symmetrically welded and interconnected outside the vertical tube (5).

5. The flow control device for the electrode spray ring of the auxiliary part of the conducting arm of an electric arc furnace according to claim 1, characterized in that: A transverse handle (17) is welded to the upper surface of the top cover (16).

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