Converter slag remelting and smelting feeding device

Abstract

The utility model relates to the technical field of feeding devices, in particular to a converter slag remelting and smelting feeding device which comprises a base, a sorting box with an opening in one end is installed at one end of the top of the base through a plurality of supporting legs, a hopper is installed at the end, away from the opening, of the sorting box, and one end of the hopper is communicated with the interior of the sorting box. A plurality of first supporting shafts are rotationally connected to the two sides of the interior of the sorting box, the first supporting shafts are connected through a third conveying belt, one end of the third conveying belt extends to the position below a discharging port of the hopper, the end of the first supporting shaft located at one end is connected with a first driving motor, and the first driving motor is fixed to the side wall of the sorting box. Magnetic materials in slag can be adsorbed to the first conveying belt through the magnetic force of the electromagnet, conveyed to the second conveying belt along the first conveying belt and finally conveyed to smelting equipment for smelting, the slag can be sorted, impurities in the slag can be cleaned up, and the using effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of feeding devices, in particular to a feeding device for returning converter slag to the furnace for smelting. Background Technique

[0002] Slag refers to the general term for the products formed by the oxides generated by the oxidation of impurities in the metal materials during the steelmaking process and then undergoing physical and chemical reactions with the slag-making agent and the furnace lining. In the actual production process, the slag can be recycled, which can save resources.

[0003] The existing feeding devices for returning converter slag to the furnace for smelting generally refer to the belt feeding mechanism or the auger feeding mechanism, which convey the slag onto the conveyor belt or into the auger, and then convey the slag into the smelting equipment through the conveyor belt or the auger. However, since the existing feeding equipment cannot screen the impurities in the slag, there are more impurities in the slag during smelting, resulting in poor use effect. And during the feeding process, when the slag falls into the smelting equipment, the dust in the slag will float into the surrounding environment and is easily inhaled by the staff, affecting the health of the staff. For this reason, we propose a feeding device for returning converter slag to the furnace for smelting. Content of the Utility Model

[0004] The purpose of the utility model is to solve the above-mentioned disadvantages in the prior art, and to propose a feeding device for returning converter slag to the furnace for smelting.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: design a feeding device for returning converter slag to the furnace for smelting, including a base. One end of the top of the base is installed with a sorting box with an opening through several legs. A hopper is installed at the end of the sorting box far from the opening, and one end of the hopper is communicated with the inside of the sorting box;

[0006] Several first support shafts are rotatably connected to both sides inside the sorting box. The first support shafts are connected by a third conveyor belt, and one end of the third conveyor belt extends below the discharge port of the hopper. The end of the first support shaft at one end is connected with a first driving motor, and the first driving motor is fixed on the side wall of the sorting box;

[0007] Fixing plates are installed on both sides of the sorting box near the opening. Several second support shafts are rotatably connected between the two fixing plates and on both sides inside the sorting box. The end of the second support shaft at one end is connected with a second driving motor, and the second driving motor is fixed on the side of the sorting box. The second support shafts are connected by a first conveyor belt, and one end of the first conveyor belt extends into the sorting box and is located above the third conveyor belt;

[0008] An electromagnet is arranged inside the first conveyor belt. Both sides of the electromagnet are fixed on the side wall of the sorting box, and one side of the electromagnet extends above the third conveyor belt;

[0009] One end of the sorting box close to the opening is provided with a material guiding trough body, the material guiding trough body is inclined, and one end of the material guiding trough body extends into the sorting box and is located at the bottom of the electromagnet;

[0010] One end of the top of the base close to the fixed plate is provided with a support trough body through a bracket. A number of third support shafts are rotatably connected to both sides inside the support trough body. One end of the third support shaft at one end is provided with a third driving motor, and the third driving motor is fixed on the side surface of the support trough body. The third support shafts are connected by a second conveyor belt, and one end of the second conveyor belt extends below the material guiding trough body;

[0011] A strip-shaped baffle is installed on the top of the support trough body. One end of the strip-shaped baffle is connected to the outer surface of the material guiding trough body, and the material guiding trough body penetrates through the strip-shaped baffle;

[0012] An installation cover is installed at one end of the support trough body away from the material guiding trough body. A number of adsorption tubes are installed at the top end inside the installation cover. Adsorption holes are formed on the side surface of each adsorption tube, and the adsorption holes face the second conveyor belt;

[0013] One ends of the adsorption tubes all extend outside the installation cover, and the ends of the adsorption tubes are connected by a guide air pipe. A filter box is installed on the top of the base. The top of the filter box is connected with a top cover. The other end of the guide air pipe is fixed on the top cover and is communicated with the inside of the filter box. A negative pressure pump is also installed on the top of the base. An air suction pipe is connected to the air inlet of the negative pressure pump, and one end of the air suction pipe is fixed on the side surface of the filter box;

[0014] A sieve is installed inside the filter box. The sieve is located between the air suction pipe and the guide air pipe. When the top cover covers the filter box, the top of the sieve is in sealing cooperation with the bottom of the top cover.

[0015] Preferably, the first conveyor belt is located above the third conveyor belt, and there is a spacing between their adjacent surfaces.

[0016] Preferably, a slag discharge port is opened at the bottom of the sorting box. The slag discharge port is located at one end of the third conveyor belt, and a collection box is installed on the top of the base. The collection box is located below the slag discharge port.

[0017] Preferably, a scraper is installed on the top of the material guiding trough body. The scraper is located on one side of the electromagnet, and the top of the scraper is in clearance fit with the bottom of the first conveyor belt.

[0018] Preferably, a number of partition plates are installed on the outer surface of the second conveyor belt.

[0019] Preferably, there is a spacing between the bottom of the material guiding trough body and the partition plates.

[0020] Preferably, a control cabinet is installed on the side of the sorting box, and the controller arranged inside the control cabinet is connected to the first driving motor, the second driving motor, the negative pressure pump, the electromagnet and the third driving motor respectively through wires.

[0021] The beneficial effects of the design scheme proposed by the present utility model in the application process are as follows:

[0022] 1. The magnetic materials in the slag can be adsorbed onto the first conveyor belt by the magnetic force of the electromagnet, and conveyed along the first conveyor belt to the second conveyor belt, and finally conveyed to the smelting equipment for smelting. The slag can be sorted, and the impurities in the slag can be cleaned up, improving the use effect.

[0023] 2. The negative pressure pump can make the suction holes generate suction force, adsorb the dust scattered when the slag falls into the smelting equipment into the filter box for collection, avoid the dust from spreading into the surrounding environment, and improve the use effect. Description of the Drawings

[0024] Figure 1 is the structural schematic diagram of the present utility model;

[0025] Figure 2 is the side sectional view of the sorting box structure of the present utility model;

[0026] Figure 3 is the side sectional view of the support trough body and the mounting cover structure of the present utility model;

[0027] Figure 4 is the structural schematic diagram of the adsorption pipe and the negative pressure pump of the present utility model;

[0028] Figure 5 is the side sectional view of the partial structure of the sorting box and the second conveyor belt of the present utility model.

[0029] In the figure: 1. Base; 2. Leg; 3. First driving motor; 4. Sorting box; 5. Hopper; 6. Second driving motor; 7. First support shaft; 8. Second support shaft; 9. Fixed plate; 10. First conveyor belt; 11. Scraper; 12. Baffle plate; 13. Second conveyor belt; 14. Support trough body; 15. Material guiding trough body; 16. Mounting cover; 17. Air guide pipe; 18. Adsorption pipe; 19. Filter box; 20. Suction pipe; 21. Negative pressure pump; 22. Third conveyor belt; 23. Electromagnet; 24. Third driving motor; 25. Collection box; 26. Slag discharge port; 27. Third support shaft; 28. Suction hole; 29. Top cover; 30. Screen; 31. Control cabinet; 32. Strip-shaped baffle. Detailed Implementation Modes

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0031] Referring to Figures 1 - 5 , a feeding device for the return melting of converter slag includes a base 1. One end of the top of the base 1 is provided with a sorting box 4 with an opening through several legs 2. One end of the sorting box 4 away from the opening is provided with a hopper 5. One end of the hopper 5 is communicated with the inside of the sorting box 4. During use, the staff can pour the slag into the hopper 5, and the slag can be conveyed into the sorting box 4 along the hopper 5.

[0032] A control cabinet 31 is installed on the side of the sorting box 4. A controller is installed inside the control cabinet 31. The controller is one of a control main board, a host, or a PLC logic controller.

[0033] As Figure 1 and Figure 2 shown, several first support shafts 7 are rotatably connected to both sides inside the sorting box 4. The first support shafts 7 are connected by a third conveyor belt 22, and one end of the third conveyor belt 22 extends below the discharge port of the hopper 5. One of the first support shafts 7 at one end is connected to a first driving motor 3, and the first driving motor 3 is fixed on the side wall of the sorting box 4. During actual use, the slag passing through the hopper 5 will directly fall on the third conveyor belt 22, and the first driving motor 3 can drive the third conveyor belt 22 to move to convey the slag.

[0034] As Figure 1 and Figure 2 shown, fixing plates 9 are installed on both sides of the sorting box 4 near the opening. Several second support shafts 8 are rotatably connected between the two fixing plates 9 and on both sides inside the sorting box 4. One of the second support shafts 8 at one end is connected to a second driving motor 6, and the second driving motor 6 is fixed on the side of the sorting box 4. The second driving motor 6 is connected to the controller through a wire. The second support shafts 8 are connected by a first conveyor belt 10, and one end of the first conveyor belt 10 extends into the sorting box 4 and is located above the third conveyor belt 22. During actual use, the second driving motor 6 can drive the first conveyor belt 10 to rotate.

[0035] As Figure 2As shown in the figure, an electromagnet 23 is provided inside the first conveyor belt 10. Both sides of the electromagnet 23 are fixed on the side wall of the sorting box 4. The electromagnet 23 is connected to the controller through a wire, and one side of the electromagnet 23 extends above the third conveyor belt 22. During the process of the slag being conveyed on the third conveyor belt 22, when the slag moves below the electromagnet 23, the magnetic raw materials in the slag can be adsorbed onto the first conveyor belt 10 under the magnetic action of the electromagnet 23, while the non-magnetic impurities remain on the third conveyor belt 22, thus completing the sorting of the slag.

[0036] As Figure 2 shown in the figure, the first conveyor belt 10 is located above the third conveyor belt 22, and there is a gap between their adjacent surfaces. In this way, the slag on the third conveyor belt 22 can be conveyed below the first conveyor belt 10 and adsorbed onto the first conveyor belt 10 by the electromagnet 23.

[0037] It should be noted that, as Figure 2 shown in the figure, a slag discharge port 26 is opened at the bottom of the sorting box 4. The slag discharge port 26 is located at one end of the third conveyor belt 22, and a collection box 25 is installed on the top of the base 1. The collection box 25 is located below the slag discharge port 26. The impurities remaining after sorting can be conveyed above the slag discharge port 26 through the third conveyor belt 22, and the impurities fall into the collection box 25 along the slag discharge port 26 for collection.

[0038] As Figure 1 and Figure 2 shown in the figure, a guide trough 15 is installed at one end of the sorting box 4 close to the opening. The guide trough 15 is inclined, and one end of the guide trough 15 extends into the sorting box 4 and is located at the bottom of the electromagnet 23. During actual use, the slag adsorbed onto the bottom of the first conveyor belt 10 by the electromagnet 23 will move away from the electromagnet 23 during the process of following the first conveyor belt 10. When the magnetic force of the electromagnet 23 on the slag is less than the gravity, the slag will fall onto the guide trough 15 under the action of gravity.

[0039] As Figure 1 and Figure 3 shown in the figure, a support trough 14 is installed at one end of the top of the base 1 close to the fixing plate 9 through a bracket. A number of third support shafts 27 are rotatably connected to both sides inside the support trough 14. One end of the third support shaft 27 at one end is installed with a third driving motor 24. The third driving motor 24 is fixed on the side of the support trough 14, and the third driving motor 24 is connected to the controller through a wire. The third support shafts 27 are connected by a second conveyor belt 13, and one end of the second conveyor belt 13 extends below the guide trough 15. During actual use, the slag falling onto the guide trough 15 can fall onto the second conveyor belt 13 along the guide trough 15 and be conveyed to the melting equipment along the second conveyor belt 13.

[0040] A strip-shaped baffle 32 is installed at the top of the support trough 14. One end of the strip-shaped baffle 32 is connected to the outer surface of the material guiding trough 15, and the material guiding trough 15 penetrates through the strip-shaped baffle 32. Under the action of the strip-shaped baffle 32, when the slag falls from the material guiding trough 15 onto the second conveyor belt 13, the dust in the slag will not disperse into the external environment.

[0041] It should be noted that, as Figure 5 shown, a scraper 11 is installed at the top of the material guiding trough 15. The scraper 11 is located on one side of the electromagnet 23, and the top of the scraper 11 is in clearance fit with the bottom of the first conveyor belt 10. In this way, the scraper 11 can scrape the slag remaining on the first conveyor belt 10 and fall it into the material guiding trough 15, and during the process of the slag falling into the material guiding trough 15, the dust will not disperse into the external environment.

[0042] A filter box 19 is installed at the top of the base 1. The top of the filter box 19 is connected with a top cover 29. A negative pressure pump 21 is also installed at the top of the base 1. An air suction pipe 20 is connected to the air inlet of the negative pressure pump 21. One end of the air suction pipe 20 is fixed on the side of the filter box 19. A gas guide pipe 17 is installed at the top of the top cover 29. An installation cover 16 is installed at one end of the support trough 14 away from the material guiding trough 15. A number of adsorption pipes 18 are installed at the inner top of the installation cover 16. Adsorption holes 28 are formed on the side of each adsorption pipe 18, and the adsorption holes 28 face the second conveyor belt 13. One end of each adsorption pipe 18 extends outside the installation cover 16, and the ends of the adsorption pipes 18 are all connected to the gas guide pipe 17. During actual use, the negative pressure pump 21 can discharge the air in the filter box 19 into the external environment, making the inside of the filter box 19 generate negative pressure. Then, the gas guide pipe 17 and the adsorption pipes 18 generate suction force, so that the adsorption holes 28 can adsorb the dust generated during the slag feeding process cleanly, avoiding the dust from dispersing into the external environment.

[0043] As Figure 3 shown, a screen 30 is installed inside the filter box 19. The screen 30 is located between the air suction pipe 20 and the gas guide pipe 17. When the top cover 29 covers the filter box 19, the top of the screen 30 is in sealed fit with the bottom of the top cover 29. The screen 30 can filter the adsorbed dust in the filter box 19 cleanly, avoiding the dust from being sucked into the negative pressure pump 21.

[0044] Specifically, when the utility model is in use, the staff conveys the slag to the third conveyor belt 22 through the hopper 5, and then controls the first drive motor 3, the second drive motor 6 and the electromagnet 23 to work through the controller. The first drive motor 3 drives the third conveyor belt 22 to move, and the second drive motor 6 drives the first conveyor belt 10 to move. When the third conveyor belt 22 conveys the slag to the lower part of the first conveyor belt 10, the magnetic force generated by the electromagnet 23 can adsorb the magnetic materials in the slag onto the first conveyor belt 10 and convey them through the first conveyor belt 10. The impurities remaining on the third conveyor belt 22 can be discharged into the collection box 25 along the slag discharge port 26 for collection. The slag at the bottom of the first conveyor belt 10 will move away from the electromagnet 23 during the conveying process. When the magnetic force of the electromagnet 23 is less than the gravity of the slag, the slag falls from the first conveyor belt 10 and lands in the material guiding trough 15, and the slag falls onto the second conveyor belt 13 along the material guiding trough 15. The controller then controls the third drive motor 24 to work, and the third drive motor 24 drives the second conveyor belt 13 to move, conveying the slag into the smelting equipment. And during the conveying process, the controller controls the negative pressure pump 21 to work. The negative pressure pump 21 sucks out the air in the filter box 19 through the suction pipe 20, making the inside of the filter box 19 generate negative pressure, and further making the air guide pipe 17 and the adsorption pipe 18 generate suction force. The dust scattered when the slag falls from the second conveyor belt 13 into the smelting equipment can be adsorbed by the adsorption holes 28 and conveyed into the filter box 19 along the adsorption pipe 18 and the air guide pipe 17 for collection, which can avoid the dust from scattering into the external environment.

[0045] Furthermore, as Figure 1 shown, a number of partition plates 12 are installed on the outer surface of the second conveyor belt 13. The partition plates 12 can block the slag falling on the second conveyor belt 13 and prevent the slag from falling onto the base 1 under the action of gravity.

[0046] Furthermore, as Figure 5 shown, there is a gap between the bottom of the material guiding trough 15 and the partition plate 12. The material guiding trough 15 can convey the slag onto the second conveyor belt 13, and the partition plate 12 will not collide with the material guiding trough 15.

[0047] The above is only the preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the utility model, according to the technical solution of the utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the utility model.

Claims

1. A feeding device for returning converter slag to the furnace for smelting, comprising a base (1), characterized in that: One end of the top of the base (1) is provided with a sorting box (4) with an opening at one end through a number of legs (2). A hopper (5) is installed at the end of the sorting box (4) far from the opening, and one end of the hopper (5) is communicated with the inside of the sorting box (4); A number of first support shafts (7) are rotatably connected to both sides inside the sorting box (4). The first support shafts (7) are connected by a third conveyor belt (22), and one end of the third conveyor belt (22) extends below the discharge port of the hopper (5). One end of the first support shaft (7) located at one end is connected to a first driving motor (3), and the first driving motor (3) is fixed on the side wall of the sorting box (4); Fixed plates (9) are installed on both sides of the sorting box (4) near the opening. A number of second support shafts (8) are rotatably connected between the two fixed plates (9) and on both sides inside the sorting box (4). One end of the second support shaft (8) located at one end is connected to a second driving motor (6), and the second driving motor (6) is fixed on the side of the sorting box (4). The second support shafts (8) are connected by a first conveyor belt (10), and one end of the first conveyor belt (10) extends into the sorting box (4) and is located above the third conveyor belt (22); An electromagnet (23) is arranged inside the first conveyor belt (10). Both sides of the electromagnet (23) are fixed on the side wall of the sorting box (4), and one side of the electromagnet (23) extends above the third conveyor belt (22); A guide chute body (15) is installed at the end of the sorting box (4) near the opening. The guide chute body (15) is inclined, and one end of the guide chute body (15) extends into the sorting box (4) and is located at the bottom of the electromagnet (23); A support chute body (14) is installed at one end of the top of the base (1) near the fixed plate (9) through a bracket. A number of third support shafts (27) are rotatably connected to both sides inside the support chute body (14). One end of the third support shaft (27) located at one end is installed with a third driving motor (24), and the third driving motor (24) is fixed on the side of the support chute body (14). The third support shafts (27) are connected by a second conveyor belt (13), and one end of the second conveyor belt (13) extends below the guide chute body (15); A strip-shaped baffle (32) is installed on the top of the support chute body (14). One end of the strip-shaped baffle (32) is in contact with the outer surface of the guide chute body (15), and the guide chute body (15) penetrates through the strip-shaped baffle (32); An installation cover (16) is installed at the end of the support chute body (14) far from the guide chute body (15). A number of adsorption pipes (18) are installed at the top end inside the installation cover (16). Adsorption holes (28) are formed on the side of each adsorption pipe (18), and the adsorption holes (28) face the second conveyor belt (13); One end of each adsorption tube (18) extends to the outside of the installation cover (16), and the ends of the adsorption tubes (18) are connected by a gas guide pipe (17). A filter box (19) is installed on the top of the base (1). The top of the filter box (19) is connected with a top cover (29). The other end of the gas guide pipe (17) is fixed on the top cover (29) and is communicated with the inside of the filter box (19). A negative pressure pump (21) is also installed on the top of the base (1). An air suction pipe (20) is connected to the air inlet of the negative pressure pump (21). One end of the air suction pipe (20) is fixed on the side of the filter box (19); A screen (30) is installed inside the filter box (19). The screen (30) is located between the air suction pipe (20) and the gas guide pipe (17). When the top cover (29) covers the filter box (19), the top of the screen (30) is in sealing fit with the bottom of the top cover (29).

2. The feeding device for returning converter slag to the furnace for smelting according to claim 1, characterized in that: The first conveyor belt (10) is located above the third conveyor belt (22), and there is a spacing between their adjacent surfaces.

3. The feeding device for returning converter slag to the furnace for smelting according to claim 1, characterized in that: A slag discharge port (26) is opened at the bottom of the sorting box (4). The slag discharge port (26) is located at one end of the third conveyor belt (22). A collection box (25) is installed on the top of the base (1). The collection box (25) is located below the slag discharge port (26).

4. A converter slag recycling and smelting feeding device according to claim 1, characterized in that: A scraper (11) is installed on the top of the material guiding trough body (15). The scraper (11) is located on one side of the electromagnet (23). The top of the scraper (11) is in clearance fit with the bottom of the first conveyor belt (10).

5. A converter slag recycling smelting feeding device according to claim 1, characterized in that: A number of baffle plates (12) are installed on the outer surface of the second conveyor belt (13).

6. The feeding device for returning converter slag to the furnace for smelting according to claim 5, characterized in that: There is a spacing between the bottom of the material guiding trough body (15) and the baffle plates (12).

7. A converter slag return melting feeding device according to claim 1, characterized in that: A control cabinet (31) is installed on the side of the sorting box (4). The controller arranged inside the control cabinet (31) is connected to the first driving motor (3), the second driving motor (6), the negative pressure pump (21), the electromagnet (23) and the third driving motor (24) respectively through wires.

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