CN116020197A - A kind of iron and steel smelting slag blocking device - Google Patents

Abstract

The invention discloses a slag blocking device for iron and steel smelting, which relates to the technical field of iron and steel smelting, and comprises a filter box. A slag blocking mechanism is arranged in the filter box, and the slag blocking mechanism includes a material introduction port, a filter barrel, a filter hole 1, and a barrel cover , filter hole two, threaded ring edge, frame arm, filter plate, filter hole three, the filter box is provided with a cooling mechanism and installation components, and the cooling mechanism includes a linear motor, a U frame, a cooling sheet, and a heat dissipation hole. The installation assembly includes a box cover, a mounting plate, screw holes, and a sealing gasket. A guide mechanism is also provided on the filter box, and the guide mechanism includes a feed hole, a drainage groove, a shield, a discharge pipe, and a valve. The invention activates the refrigerating sheet, discharges heat to the heat dissipation hole through its heat dissipation end, and replaces the energy to blow cold air to the outer wall of the filter box. By repeatedly blowing cold air, the filter box is quickly cooled, and the temperature inside the box is cooled to a safe temperature, avoiding personnel cleaning Risk of burns due to work.

Description

A kind of iron and steel smelting slag blocking device

technical field

The invention relates to the technical field of iron and steel smelting, in particular to a slag blocking device for iron and steel smelting.

Background technique

Iron and steel smelting is the general term for steel and iron metallurgical processes. Industrially produced iron is divided into pig iron and steel according to the carbon content. Most modern ironmaking uses blast furnace ironmaking, and some use direct reduction ironmaking method and electric furnace ironmaking method. Steelmaking mainly uses pig iron smelted in blast furnaces, sponge iron smelted by direct reduction ironmaking, and scrap steel as raw materials, which are smelted into steel by different methods. The basic production process is to smelt iron ore into pig iron in an iron-smelting furnace, then use pig iron as raw material to smelt steel by different methods, and then cast it into ingots or continuous casting slabs.

According to the Chinese Patent Publication No. CN211394535U, this patent provides a slag blocking system device for iron and steel smelting, including a shell, a feed port and a discharge port. One end of the shell is provided with a feed port, and the other end of the shell is provided with a There is a discharge port, flanges are welded at the feed port and the discharge port, chute is symmetrically opened on both sides of the housing, and movable frame 1 and movable frame 2 are installed in the chute, and the movable frame A fixing sleeve is welded on one side, a cross bar is inserted into the fixing sleeve, a sliding sleeve is set on the cross bar, a cross beam is arranged on the sliding sleeve, a spring is arranged between the sliding sleeve and the fixing sleeve, and the spring fits on the outside of the cross bar. The upper end of the crossbeam is provided with a protective net, and a control box is installed on the side of the housing close to the movable frame 2, and a lifting rod is inserted in the control box, and the outer wall of the control box is provided with a slot corresponding to the lifting rod, and the lifting rod is slidably connected Slotted, the control box is equipped with an adjustment screw, the adjustment screw is connected to the control box by rotation, and the adjustment screw is perpendicular to the bottom surface of the control box, the lower end of the adjustment screw is fitted with a threaded sleeve, and the two ends of the threaded sleeve are welded to the lifting rod. A worm gear is provided between the threaded sleeve and the bottom surface of the control box, and the worm gear is fixedly connected to the adjusting screw, the worm screw is connected to the worm screw, and the worm screw is connected to the inner wall of the control box in rotation, and the worm screw and the adjusting screw rod are arranged perpendicular to each other, and one end of the worm screw runs through the control box , and the handle is welded at the port of the worm, the molten steel enters the casing from the feed port, and after being filtered by the first filter and the second filter, the first filter can intercept the larger residue, and the second filter can filter the smaller residue Interception can effectively improve the efficiency of slag blocking, filter the residue more thoroughly, improve the quality of production and processing, and the filtered molten steel flows out from the discharge port.

However, the temperature of the molten steel flowing out is very high. This patent relies on a filter for filtering, which requires very strict requirements on the material of the mesh rope, which may easily cause the risk of melting the mesh rope at high temperature, and the residue remains at a high temperature, which may cause burns if contacted by personnel.

Contents of the invention

The present invention provides a slag blocking device for iron and steel smelting to solve the problems raised in the above-mentioned background technology.

In order to solve the above technical problems, the technical solution adopted in the present invention is: a slag blocking device for iron and steel smelting, including a filter box, a slag blocking mechanism is arranged in the filter box, and the slag blocking mechanism includes a material introduction port, a filter barrel, a filter Hole 1, bucket cover, filter hole 2, threaded ring edge, frame arm, filter plate, filter hole 3;

The filter box is provided with a cooling mechanism and a mounting assembly, and the cooling mechanism includes a linear motor, a U frame, a cooling plate, and a cooling hole, and the mounting assembly includes a box cover, a mounting plate, a screw hole, and a gasket;

The filter box is also provided with a guide mechanism, and the guide mechanism includes a feed hole, a drainage groove, a shield, a discharge pipe, and a valve.

The further improvement of the technical solution of the present invention lies in that: the material introduction port is fixedly installed between the inner walls of the filter box, the top of the filter bucket is fixedly connected to the bottom end of the material introduction port and communicated with each other, and the number of the filter holes is several , and surround the outer wall of the filter barrel for a week, the number of the second filter hole is several, and they are successively opened at the bottom of the outer wall of the barrel cover, the top opening of the barrel cover is set, and the threaded ring edge is fixed on the barrel The outer wall of the opening of the lid and the bottom of the inner wall of the material introduction port are threaded, and the bung is threaded with the inner wall of the material introduction port through a threaded ring edge.

With the above technical scheme, the molten steel in this scheme is squeezed out from the first filter hole, and at the same time, the molten steel is squeezed out from the second filter hole for the first-stage filtration, and the larger residues will stay on the inner wall of the barrel lid for temporary storage.

The further improvement of the technical solution of the present invention is that: there are two frame arms, and the two frame arms are respectively fixedly installed on the back of the inner wall and the front of the inner wall of the filter box, and the bottom front side and the bottom rear side of the filter plate The tops of the two frame arms are attached respectively, and the number of the third filter holes is several, and are sequentially opened on the top of the filter plate.

With the above technical solution, the filter plate in this solution can be equipped with a zirconia filter sheet, and the filter plate can be pushed upwards by reaching out, so that the filter plate can be turned away from the frame arms, and can be easily taken out from between the two frame arms.

The further improvement of the technical solution of the present invention is that: there are two linear motors, and the two linear motors are fixedly installed on both sides of the outer wall of the filter box respectively, and arranged symmetrically, and the mover ends of the two linear motors They are respectively fixedly connected with the two ear ends of the U frame, the inner wall of the U frame is provided with a mounting groove, and the refrigerating plate is fixedly installed on the inner wall of the mounting groove, the number of the heat dissipation holes is three, and the three heat dissipation holes They are all communicated with the inner wall of the installation groove, and at the same time communicated with the heat dissipation end of the cooling fin.

With the above technical solution, the radiating end of the refrigerating fin in this solution discharges heat to the radiating holes, and displaces energy to blow the cold air to the outer wall of the filter box.

The further improvement of the technical solution of the present invention is that: there are eight mounting plates, and every two mounting plates are respectively fixedly installed on the four sides of the outer wall of the box cover, and the screw holes are eight in number, and are set in On one end of each mounting plate away from the case cover, the sealing gasket is fixedly installed on the top outer wall of the case cover.

With the above technical solution, the box cover in this solution is sealed against the bottom opening of the filter box through the sealing gasket.

The further improvement of the technical solution of the present invention is that: the bottom opening of the filter box is set, the box cover is attached to the bottom opening of the filter box through a gasket, and two thread grooves are respectively opened on the four sides of the outer wall of the filter box, and There are eight thread grooves in total, and each thread groove is respectively aligned with each screw hole, and is threadedly connected with a bolt.

Adopt the above technical scheme, in this scheme, tighten the bolts and install the box cover on the bottom of the filter box through the installation plate.

The further improvement of the technical solution of the present invention lies in that: the back of the inner wall of the filter box is provided with a feed hole, and the feed hole is located above the feed inlet, the feed inlet is wide at the top and narrow at the bottom, and the inner wall is arc-shaped.

By adopting the above-mentioned technical scheme, the molten steel in this scheme flows along the arc surface of the inner wall of the feed opening to the filter barrel, avoiding the stagnation of the molten steel and facilitating the rapid flow of the molten steel.

The further improvement of the technical solution of the present invention lies in that: one end of the drainage groove is fixedly connected to the back of the outer wall of the filter box, and the connection end of the drainage groove is connected with the feeding hole.

The further improvement of the technical solution of the present invention lies in that: a cover is fixedly installed on the top of the outer wall of the drainage groove, and one end of the cover is communicated with the feeding hole.

By adopting the above technical scheme, the molten steel in this scheme enters the filter box through the feeding hole.

The further improvement of the technical solution of the present invention lies in that: the end of the drainage groove away from the feed hole is provided with three discharge pipes in sequence, and the end of the three discharge pipes away from the drainage groove is fixedly installed with a valve, and is connected with a valve. Steel smelting furnace.

By adopting the above technical scheme, the regulating valve in this scheme promotes the flow of molten steel from the discharge pipe to the drainage groove.

Owing to adopting above-mentioned technical scheme, relative to the prior art, the technical progress of the present invention is:

1. The present invention provides a slag-retaining device for iron and steel smelting, which adopts a start-up refrigeration sheet, discharges heat to the heat dissipation hole through its heat dissipation end, and replaces energy to blow cold air to the outer wall of the filter box, and quickly cools the filter box by repeatedly blowing cold air, and Cool the inside of the box to a safe temperature to avoid the risk of burns caused by personnel cleaning operations.

2. The present invention provides a slag blocking device for iron and steel smelting, which uses molten steel to accumulate in the filter barrel, and squeezes the molten steel from the first filter hole through its own pressure, and at the same time squeezes the molten steel from the second filter hole to perform the first-stage filtration. The filter plate can be equipped with a zirconia filter, and the pressure and gravity of the molten steel can be pressed down again through the zirconia filter for filtration, and then the second stage of filtration can be carried out from the third filter hole to filter the residue in the molten steel more thoroughly.

3. The present invention provides a slag blocking device for iron and steel smelting, which uses a rotating barrel cover to keep it away from the inner wall of the filter barrel through the threaded ring edge, pours out and cleans the internal residue, and presses the box cover against the bottom opening of the filter box through a gasket At the same time, tighten the bolts and install the box cover on the bottom of the filter box through the installation plate, which is convenient for the storage and transportation of the entire slag blocking device.

Description of drawings

Fig. 1 is a perspective view of the present invention;

Fig. 2 is the internal sectional view of filter case of the present invention;

Fig. 3 is the structural representation of filter barrel and bung of the present invention;

Fig. 4 is the inner wall structure schematic diagram of U frame of the present invention;

Fig. 5 is the structural representation of lid of the present invention;

Fig. 6 is a schematic structural view of the drainage groove of the present invention;

Fig. 7 is a schematic structural diagram of the mask of the present invention.

In the figure: 1, filter box; 2, slag blocking mechanism; 201, material introduction port; 202, filter barrel; 203, filter hole one; 204, barrel cover; 205, filter hole two; 206, thread ring edge; 207, frame Arm; 208, filter plate; 209, filter hole three; 3, cooling mechanism; 301, linear motor; 302, U frame; 303, refrigeration plate; Mounting plate; 403, screw hole; 404, sealing gasket; 5, feed hole; 6, drainage groove; 7, mask; 8, discharge pipe; 9, valve.

Detailed ways

Below in conjunction with embodiment the present invention is described in further detail:

Embodiment one

As shown in Figures 1-7, the present invention provides a slag blocking device for iron and steel smelting, including a filter box 1, a slag blocking mechanism 2 is arranged in the filter box 1, and the slag blocking mechanism 2 includes a material introduction port 201, a filter barrel 202, a filter Hole 1 203, bucket cover 204, filter hole 2 205, threaded ring edge 206, frame arm 207, filter plate 208, filter hole 3 209, filter box 1 is provided with cooling mechanism 3 and installation assembly 4, and cooling mechanism 3 includes Linear motor 301, U frame 302, refrigeration plate 303, cooling hole 304, installation assembly 4 includes box cover 401, installation plate 402, screw hole 403, sealing gasket 404, is also provided with guide mechanism on filter box 1, and guide mechanism includes Feed hole 5, drainage groove 6, mask 7, discharge pipe 8, valve 9, material introduction port 201 are fixedly installed between the inner wall of filter box 1, the top of filter barrel 202 is fixedly connected with the bottom end of material introduction port 201 and Connected setting, filter holes 1 203 have several numbers, and are opened around the outer wall of the filter bucket 202 for a week, filter holes 2 205 have several numbers, and are successively opened at the bottom of the outer wall of the barrel cover 204, and the top of the barrel cover 204 is open Setting, threaded ring rim 206 is fixedly installed on the outer wall of the opening of bung 204, and the bottom of the inner wall of the material introduction port 201 is threaded, and the bung 204 is threadedly connected with the inner wall of the material introduction port 201 by the threaded ring edge 206, and molten steel flows from filter hole one 203 is extruded, and molten steel is also extruded from the second filter hole 205 for the first-stage filtration, and the larger residue will stay on the inner wall of the barrel cover 204 for temporary storage. There are two rack arms 207, two rack arms 207 They are respectively fixedly installed on the back and front of the inner wall of the filter box 1. The bottom front side and the bottom rear side of the filter plate 208 are respectively attached to the tops of the two frame arms 207. There are several filter holes 3 209, which are opened in sequence. On the top of the filter plate 208, a zirconia filter sheet can be arranged on the filter plate 208, and the filter plate 208 can be pushed up by reaching out, so that the filter plate 208 can be turned away from the frame arms 207, and can be easily taken out from between the two frame arms 207.

In this embodiment, the molten steel is accumulated in the filter barrel 202, and the molten steel is extruded from the first filter hole 203 by its own pressure, and the molten steel is also extruded from the second filter hole 205 to carry out the first-stage filtration. A zirconia filter can be configured, and the molten steel can be squeezed downward again through the zirconia filter for filtration through its own pressure and gravity, and then the second-stage filtration can be performed from filter hole 3 209 to filter the residue in the molten steel more thoroughly.

Embodiment two

As shown in Figures 1-4, on the basis of Embodiment 1, the present invention provides a technical solution: preferably, there are two linear motors 301, and the two linear motors 301 are respectively fixed on the outer wall of the filter box 1 The two sides are arranged symmetrically, the mover ends of the two linear motors 301 are respectively fixedly connected with the two ear ends of the U frame 302, the inner wall of the U frame 302 is provided with a mounting groove, and the cooling plate 303 is fixedly installed on the inner wall of the mounting groove, There are three heat dissipation holes 304, and the three heat dissipation holes 304 are all connected to the inner wall of the installation groove, and are connected to the heat dissipation end of the cooling fin 303. Cold air is blown to filter case 1 outer wall.

In this embodiment, by starting the cooling plate 303, the heat is discharged to the heat dissipation hole 304 through its heat dissipation end, and the energy is replaced to blow the cold air to the outer wall of the filter box 1, and the filter box 1 is rapidly cooled by repeatedly blowing cold air, and the inside of the box Cool down to a safe temperature to avoid the risk of burns caused by personnel cleaning operations.

Embodiment Three

As shown in Figures 1, 2, 5, 6, and 7, on the basis of Embodiment 1, the present invention provides a technical solution: preferably, there are eight mounting plates 402, and every two mounting plates 402 are respectively fixed Installed on the four sides of the outer wall of the case cover 401, there are eight screw holes 403, and they are respectively provided on the end of each mounting plate 402 away from the case cover 401, and the gasket 404 is fixedly installed on the top outer wall of the case cover 401, the case cover 401 is sealed against the bottom opening of the filter box 1 through the gasket 404, the bottom opening of the filter box 1 is set, the box cover 401 is attached to the bottom opening of the filter box 1 through the gasket 404, and the four sides of the outer wall of the filter box 1 are respectively opened. There are two thread grooves, and the number of thread grooves is eight in total, and each thread groove is aligned with each screw hole 403 respectively, and a bolt is threaded, tighten the bolt and install the box cover 401 on the filter box 1 through the mounting plate 402 At the bottom, the back of the inner wall of the filter box 1 is provided with a feeding hole 5, and the feeding hole 5 is located above the feeding port 201. The feeding port 201 is wide at the top and narrow at the bottom, and the inner wall is arc-shaped. Facing the flow of filter barrel 202, avoiding the stay of molten steel and facilitating the rapid flow of molten steel, one end of the drainage groove 6 is fixedly connected to the back of the outer wall of the filter box 1, and the connecting end of the drainage groove 6 is connected with the feed hole 5, and the outer wall of the drainage groove 6 A cover 7 is fixedly installed on the top, and one end of the cover 7 communicates with the feeding hole 5. The molten steel enters the filter box 1 through the feeding hole 5, and the end of the drainage groove 6 away from the feeding hole 5 is successively provided with three outlets. The material pipe 8 and the end of the three discharge pipes 8 away from the drainage groove 6 are fixedly equipped with a valve 9, and are connected to a steel smelting furnace. Adjusting the valve 9 promotes molten steel to flow from the discharge pipe 8 to the drainage groove 6.

In this embodiment, by rotating the barrel cover 204 to make it away from the inner wall of the filter barrel 202 through the threaded ring 206, the internal residues are poured out and cleaned, and the box cover 401 is pressed against the bottom opening of the filter box 1 through the sealing gasket 404 To seal, tighten the bolts and install the box cover 401 on the bottom of the filter box 1 through the mounting plate 402, so as to facilitate the storage and transportation of the entire slag blocking device.

Let's talk about the working principle of the iron and steel smelting slag blocking device in detail.

As shown in Figure 1-7, all the structures provided in this case form a slag-stopping device, and the slag-stopping device needs to be applied to iron and steel smelting furnaces, and the ends of the three discharge pipes 8 away from the drainage groove 6 are connected through pipe joints On the pipeline for discharging molten steel of the iron and steel smelting furnace, the filter box 1 needs to be supported by relevant brackets, and the inner wall of the drainage groove 6 is aligned with the end of the discharge pipe 8 away from the furnace, and the molten steel is urged to flow from the discharge pipe 8 to the end of the furnace by adjusting the valve 9. In the drainage tank 6, the molten steel enters the filter box 1 through the feed hole 5, and flows along the inner wall arc of the material introduction port 201 toward the filter barrel 202. The molten steel is accumulated in the filter barrel 202, and the molten steel is drawn from the filter hole to 203 is extruded, and the molten steel is also extruded from the second filter hole 205 for the first stage of filtration. The larger residue will stay on the inner wall of the barrel cover 204 for temporary storage. The filtered molten steel is filled in the filter box 1, and the filter plate 208 can be equipped with a zirconia filter, and through the pressure and gravity of the molten steel itself, press down again through the zirconia filter for filtration, and then carry out the second stage of filtration from filter hole 3 209, so that other residues stay on the filter plate 208, the molten steel after secondary filtration is discharged and recovered from the bottom opening of the filter box 1, and when the molten steel is completely filtered, the linear motor 301 is started to prompt its mover end to drive the U frame 302 to perform repeated lifting movements, and at the same time start The cooling plate 303 discharges heat to the heat dissipation hole 304 through its heat dissipation end, and displaces energy to blow cold air to the outer wall of the filter box 1. By repeatedly blowing cold air, the temperature of the filter box 1 is rapidly cooled, and the temperature inside the box is cooled to a safe temperature, avoiding personnel cleaning There is a risk of burns due to operation, reach out from the bottom opening of the filter box 1 and push the filter plate 208 upwards, so that the filter plate 208 turns away from the frame arms 207, and take it out from between the two frame arms 207, and take out the zirconia filter for replacement , rotate the barrel cover 204 to keep it away from the inner wall of the filter barrel 202 through the threaded ring edge 206, pour out and clean the internal residue, and finally reset each structure, and put the box cover 401 against the bottom opening of the filter box 1 through the sealing gasket 404 Sealing, tighten the bolts at the same time and install the box cover 401 on the bottom of the filter box 1 through the installation plate 402, which is convenient for storage and transportation of the entire slag blocking device, reduces air and dust pollution, and the shield 7 blocks the molten steel to ensure that the molten steel is stable from the drainage tank 6 Medium flow, avoid splashing.

Claims (10)

1. A slag blocking device for iron and steel smelting, comprising a filter box (1), characterized in that: the filter box (1) is provided with a slag blocking mechanism (2), and the slag blocking mechanism (2) includes a material introduction port (201 ), filter bucket (202), filter hole one (203), bucket cover (204), filter hole two (205), thread ring edge (206), frame arm (207), filter plate (208), filter hole three (209); The filter box (1) is provided with a cooling mechanism (3) and an installation assembly (4), and the cooling mechanism (3) includes a linear motor (301), a U frame (302), a refrigeration sheet (303), a cooling hole ( 304), the mounting assembly (4) includes a case cover (401), a mounting plate (402), a screw hole (403), and a gasket (404); The filter box (1) is also provided with a guide mechanism, and the guide mechanism includes a feed hole (5), a drainage groove (6), a cover (7), a discharge pipe (8), and a valve (9). 2. The slag-retaining device for iron and steel smelting according to claim 1, characterized in that: the material introduction port (201) is fixedly installed between the inner walls of the filter box (1), and the top of the filter barrel (202) It is fixedly connected to the bottom end of the material introduction port (201) and communicated with it. The first filter hole (203) has several numbers and surrounds the outer wall of the filter barrel (202). The second filter hole (205) There are several in number, and they are arranged successively at the bottom of the outer wall of the bung (204), the top opening of the bung (204) is set, and the threaded ring (206) is fixedly installed on the outer wall of the opening of the bung (204) , the bottom of the inner wall of the material introduction port (201) is threaded, and the barrel cover (204) is threadedly connected with the inner wall of the material introduction port (201) through a threaded ring edge (206). 3. The slag-retaining device for iron and steel smelting according to claim 1, characterized in that: there are two said support arms (207), and the two support arms (207) are respectively fixedly installed in the filter box ( 1) the back side of the inner wall and the front side of the inner wall, the bottom front side and the bottom rear side of the filter plate (208) are attached to the tops of the two frame arms (207) respectively, and the number of the filter hole three (209) is several , and set on the top of the filter plate (208) in turn. 4. A kind of iron and steel smelting slag-retaining device according to claim 1, is characterized in that: the quantity of described linear motor (301) has two, and two described linear motors (301) are respectively fixedly installed in filter box ( 1) on both sides of the outer wall, and symmetrically arranged, the mover ends of the two linear motors (301) are respectively fixedly connected with the two ear ends of the U frame (302), and the inner wall of the U frame (302) is provided with The installation groove, the refrigerating plate (303) is fixedly installed on the inner wall of the installation groove, the number of the heat dissipation holes (304) is three, and the three heat dissipation holes (304) are all communicated with the inner wall of the installation groove, and at the same time It is arranged in communication with the heat dissipation end of the refrigeration sheet (303). 5. A slag-retaining device for iron and steel smelting according to claim 1, characterized in that: there are eight mounting plates (402), and every two mounting plates (402) are fixedly installed on the box cover There are eight screw holes (403) on the four sides of the outer wall of (401), and they are respectively provided on the end of each mounting plate (402) away from the box cover (401), and the sealing gasket (404) is fixedly installed On the top outer wall of the case cover (401). 6. The slag blocking device for iron and steel smelting according to claim 5, characterized in that: the bottom opening of the filter box (1) is set, and the box cover (401) is attached to the filter box through a gasket (404). At the bottom opening of the box (1), two thread grooves are respectively opened on the four sides of the outer wall of the filter box (1), and there are eight thread grooves in total, and each thread groove is connected with each screw hole (403) Aligned and threaded with bolts. 7. A slag-retaining device for iron and steel smelting according to claim 2, characterized in that: a feed hole (5) is opened on the back of the inner wall of the filter box (1), and the feed hole (5) is located at the feed opening Above (201), the material introduction port (201) is wide at the top and narrow at the bottom, and the inner wall is arc-shaped. 8. A slag-retaining device for iron and steel smelting according to claim 7, characterized in that: one end of the drainage groove (6) is fixedly connected to the back of the outer wall of the filter box (1), and the connection of the drainage groove (6) The end communicates with the feeding hole (5). 9. A slag-retaining device for iron and steel smelting according to claim 8, characterized in that: a cover (7) is fixedly installed on the top of the outer wall of the drainage groove (6), and one end of the cover (7) is connected to the inlet The material hole (5) is connected and arranged. 10. A slag-retaining device for iron and steel smelting according to claim 9, characterized in that three discharge pipes (8) are sequentially arranged on the end of the drainage groove (6) away from the feed hole (5), three A valve is fixedly installed on one end of the discharge pipe (8) away from the drainage groove (6), and is connected with a steel smelting furnace.

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