Converter slag recovery device

Abstract

The utility model belongs to the technical field of slag recovery equipment, and specifically relates to a converter slag recovery device, including a working box, a slag crushing device, a slag separation device and a dust suction device; the slag crushing device includes a partition plate arranged in the working box, two roller frame plates are symmetrically arranged on the middle partition plate, two crushing rollers are arranged between the two roller frame plates, two fixed plates are arranged on the upper side of the middle partition plate, two first motors are fixedly installed on the outer side of the same fixed plate, and each first motor is fixedly connected to each crushing roller through a coupling; the slag separation device is arranged on the lower side of the slag crushing device. The dust suction device is arranged on the lower side of the slag crushing device. The utility model adjusts the magnetic strength of the magnetic roller, the rotation speed of the first transmission roller and the inclination angle of the separation plate through a controller to screen the converter slag. The non-metallic converter slag is gathered by the dust collector and transported to the second lower hopper through a conveying pipe for centralized treatment.

Description

Technical Field

[0001] The utility model relates to the technical field of slag recovery equipment, in particular to a converter slag recovery device. Background Art

[0002] The raw materials for converter steelmaking mainly include molten iron, scrap steel, slag materials, iron-containing auxiliary materials, etc. The first step: add scrap steel into the furnace through the scrap steel bucket; the second step: add molten iron into the furnace through the iron ladle; the third step: use the oxygen lance to supply oxygen, and add slag materials and iron-containing auxiliary materials from the high-level silo to complete the smelting tasks such as removing impurity elements. Converter slag is produced during the smelting process, of which the iron content of converter slag is 20%-30%. It is directly sent out of the steel plant, resulting in cost waste; on the other hand, the converter slag is directly piled up without treatment, which pollutes the environment, so the converter slag needs to be reused.

[0003] Authorization announcement number CN216815042U, a slag recovery device for a high-carbon ferrochrome smelting furnace, including a material distribution structure and a crushing and dust removal structure. The material distribution structure includes a material distribution box, a vibration motor and a driving part. The bottom and top of the material distribution box are respectively provided with a material distribution hole and a dust suction hole. A support column is fixed to the bottom of the material distribution box, and the vibration motor is installed at the bottom of the material distribution box. The crushing and dust removal structure includes a crushing box, a crushing part and a dust suction part. The bottom of the crushing box is connected to a material guide cylinder. The dust suction part includes a dust box and a dust collector. The dust box is fixed on the top surface of the crushing box, and the dust collector is connected to the dust box. This application can classify and screen the slag after crushing to reduce the occupied space, and at the same time facilitate the cleaning of the internal dust of the slag to improve the cleanliness of the slag.

[0004] However, this application only screens and classifies the slag particles according to their size. After the converter slag is crushed by the crushing box, it contains a large amount of non-metallic impurities such as silicon dioxide and calcium oxide, and cannot be directly reused. In addition, the slag after crushing is easily oxidized due to the increased contact area with the air, and the effective slag needs to be separated and processed in time.

[0005] Therefore, it is necessary to provide a converter slag recovery device to solve the problems existing in the prior art. Utility Model Content

[0006] The utility model aims to provide a converter slag recovery device, aiming to solve the technical problem that the non-metallic impurities in the slag cannot be separated in time in the above-mentioned background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A converter slag recovery device, characterized in that it comprises a working box, a slag crushing device, a slag separation device and a dust collecting device;

[0009] The slag crushing device includes a middle partition plate arranged in the working box, two roller frame plates are symmetrically arranged on the middle partition plate, two crushing rollers are arranged between the two roller frame plates, two fixed plates are arranged on the upper side of the middle partition plate, two first motors are fixedly installed on the outer side of the same fixed plate, and each first motor is fixedly connected to each crushing roller through a coupling; the slag separation device is arranged on the lower side of the slag crushing device; the dust suction device is arranged on the lower side of the working box.

[0010] Preferably, the slag separation device includes a transmission roller limit seat and a transmission roller fixing plate fixedly arranged on the front side of the middle partition, the first transmission roller is rotatably arranged between the transmission roller limit seat and the transmission roller fixing plate, a second motor is arranged on the outer side of the transmission roller fixing plate, the second motor and the first transmission roller are fixedly connected through a coupling, a magnetic roller is rotatably arranged inside the middle partition, a transmission belt is sleeved on the first transmission roller and the magnetic roller, a controller is arranged on one side of the working box, the first motor and the magnetic roller are electrically connected to the controller respectively, and a separation plate is arranged between the two roller frame plates.

[0011] Preferably, a first discharge port is provided on the middle partition on the right side of the magnetic roller, a second discharge port is provided on the right side of the first discharge port and passes through the middle partition, and the dust suction device is provided at the lower side of the first discharge port.

[0012] Preferably, a first material discharge hopper is arranged at the lower side of the first material discharge port, an oblique opening is arranged at the front side of the first material discharge hopper, and a cleaning brush is detachably mounted on the oblique opening.

[0013] Preferably, a through-bevel screw hole is provided on the bevel, a mounting screw hole is provided on the bottom side of the cleaning brush, the cleaning brush is placed on the bevel, and the nut passes through the bevel screw hole and is screwed to the mounting screw hole on the bottom side of the cleaning brush.

[0014] Preferably, a material drop opening is arranged at the top of the working box, and two first material stop plates are symmetrically arranged in the material drop opening, and the distance between the two first material stop plates is smaller than the distance between the roller bearings of the two crushing rollers.

[0015] Preferably, the dust collecting device comprises a dust collector arranged on one side of the first lower hopper, a second lower hopper arranged on the lower side of the second lower feeding port, and the dust collector is connected to the second lower hopper through a conveying pipe.

[0016] Preferably, the bottom of the separation plate is hinged to the front end of the second feed opening, and the top of the separation plate is slidably disposed in a slide groove on the inner side wall of the roller frame plate.

[0017] Preferably, the diameter of the magnetic roller is larger than the diameter of the first transmission roller, so that the converter slag is transported upward on the transmission belt.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. The utility model sets a material drop opening on the top of the working box, and symmetrically sets a first material stop plate in the material drop opening. The spacing between the two first material stop plates is smaller than the spacing between the roller bearings of the two crushing rollers. The converter slag to be processed is put into the material drop opening, and the converter slag slides between the two crushing rollers along the first material stop plate and the second material stop plate through the slag crushing device, and the crushing roller crushes the converter slag. The crushed converter slag falls on the transmission belt, and driven by the second motor on one side of the first transmission roller, the converter slag moves to the right through the slag separation device.

[0020] 2. The utility model provides a slag separation device, and the diameter of the magnetic roller is larger than the diameter of the first transmission roller, so that the converter slag is transported upward on the transmission belt. A separation plate is provided between the two roller frame plates. The bottom of the separation plate is hinged to the front end of the second discharge port, and the top of the separation plate is slidably provided in the chute of the inner wall of the roller frame plate. The magnetic strength of the magnetic roller, the rotation speed of the first transmission roller, and the inclination angle of the separation plate are adjusted by the controller to screen the converter slag. Ineffective converter slag that does not contain metal falls directly into the second discharge port, and the converter slag is timely classified and recycled, and the recycled converter slag can be directly used. Since the crushed converter slag particles are small and easily adsorbed on the surface of the conveyor belt, the surface of the conveyor belt is cleaned by the provided cleaning brush during the conveying process of the conveyor belt. In addition, the cleaning brush is subject to large wear, and the cleaning brush is screwed with the oblique mouth to facilitate timely replacement of the cleaning brush.

[0021] 3. The utility model sets a dust collector on one side of the first lower hopper, and the dust collector is connected to the second lower hopper through a conveying pipe. When some non-metallic converter slag is transported, the non-metallic converter slag is light and forms floating dust. The non-metallic converter slag is gathered by the dust collector and conveyed to the second lower hopper through the conveying pipe for centralized treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 This is a schematic diagram of the internal structure of a converter slag recovery device of the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of a converter slag recovery device at a feed port of the utility model;

[0025] Figure 3 For this utility model Figure 2 A schematic diagram of the structure enlargement in the middle;

[0026] Figure 4 This is a schematic diagram of the structure of the cleaning brush of the utility model;

[0027] Figure 5 This is a schematic diagram of the working box structure of a converter slag recovery device of the utility model;

[0028] Figure 6 This is a schematic diagram of the separation plate structure of the utility model.

[0029] In the figure: 1. working box; 2. middle partition; 3. roller frame plate; 31. slide; 4. crushing roller; 5. fixing plate; 6. first motor; 7. coupling; 8. first transmission roller; 81. magnetic roller; 9. transmission roller limit seat; 10. transmission roller fixing plate; 11. second motor; 12. controller; 13. separation plate; 14. first discharge port; 15. second discharge port; 16. first discharge hopper; 17. oblique port; 18. cleaning brush; 19. discharge port; 20. first baffle plate; 21. vacuum cleaner; 22. second discharge hopper; 23. conveying pipe. DETAILED DESCRIPTION

[0030] The technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the utility model.

[0031] Embodiment 1

[0032] See also Figure 1-Figure 6 , the utility model provides the following technical solutions:

[0033] A converter slag recovery device, characterized in that it comprises a working box 1, a slag crushing device, a slag separation device and a dust collecting device;

[0034] The slag crushing device includes a middle partition plate 2 arranged in a working box 1, two roller frame plates 3 are symmetrically arranged on the middle partition plate 2, two crushing rollers 4 are arranged between the two roller frame plates 3, two fixed plates 5 are arranged on the upper side of the middle partition plate 2, two first motors 6 are fixedly installed on the outer side of the same fixed plate 5, and each first motor 6 is fixedly connected to each crushing roller 4 through a coupling 7; only one first motor 6 is drawn in the figure; the slag separation device is arranged on the lower side of the slag crushing device; the dust suction device is arranged on the lower side of the working box 1.

[0035] Furthermore, a material drop opening 19 is provided at the top of the working box 1, and two first material stop plates 20 are symmetrically provided in the material drop opening 19, and the spacing between the two first material stop plates 20 is smaller than the spacing between the roller bearings of the two crushing rollers 4. The converter slag to be processed is put into the material drop opening 19, and the converter slag slides into between the two crushing rollers 4 along the two first material stop plates 20, and the crushing rollers 4 crush the converter slag. The crushed converter slag falls on the transmission belt, and driven by the second motor 11 on one side of the first transmission roller 8, the converter slag moves to the right.

[0036] A first discharge port 14 is provided on the middle partition 2 on the right side of the magnetic roller 81 , a second discharge port 15 is provided on the right side of the first discharge port 14 and passes through the middle partition 2 , and a dust collecting device is provided at the lower side of the first discharge port 14 .

[0037] Embodiment 2

[0038] like Figure 1-Figure 6 As shown, the difference between the second embodiment and the first embodiment is that the slag separation device includes a transmission roller limit seat 9 and a transmission roller fixing plate 10 fixedly arranged on the front side of the middle partition 2, the first transmission roller 8 is rotatably arranged between the transmission roller limit seat 9 and the transmission roller fixing plate 10, the second motor 11 is arranged outside the transmission roller fixing plate 10, and the second motor 11 is fixedly connected to the first transmission roller 8 through a coupling 7, a magnetic roller 81 is rotatably arranged inside the middle partition 2, a transmission belt is sleeved on the first transmission roller 8 and the magnetic roller 81, a controller 12 is arranged on one side of the working box 1, and the first motor 6 and the magnetic roller 81 are electrically connected to the controller 12 respectively; a separation plate 13 is arranged between the two roller frame plates 3. The bottom of the separation plate 13 is hinged with the front end of the second discharge port 15, and the top of the separation plate 13 is slidably arranged in the slide groove 31 of the inner side wall of the roller frame plate 3. The top height of the separation plate 13 is adjusted to a suitable position, and the separation plate 13 and the roller frame plate 3 remain fixed. The diameter of the magnetic roller 81 is larger than the diameter of the first transmission roller 8, so that the converter slag is transported upward on the transmission belt. During the transportation process, since the non-metallic impurities are not affected by the magnetic force, they move forward in a parabolic motion under the action of the conveyor belt. The controller 12 adjusts the magnetic strength of the magnetic roller 81, the rotation speed of the first transmission roller 8, and the inclination angle of the separation plate 13 to screen the converter slag.

[0039] Furthermore, a first material discharge hopper 16 is arranged at the lower side of the first material discharge port 14 , an oblique opening 17 is arranged at the front side of the first material discharge hopper 16 , and a cleaning brush 18 is detachably mounted on the oblique opening 17 .

[0040] Furthermore, a through-bevel screw hole is provided on the bevel mouth 17 , a mounting screw hole is provided on the bottom side of the cleaning brush 18 , the cleaning brush 18 is placed on the bevel mouth 17 , and a nut passes through the bevel screw hole and is screwed to the mounting screw hole on the bottom side of the cleaning brush 18 .

[0041] Since the crushed converter slag particles are small, they are easily adsorbed on the surface of the conveyor belt, so the surface of the conveyor belt is cleaned by the provided cleaning brush 18 during the conveying process of the conveyor belt. The cleaning brush 18 is also prone to wear, and the cleaning brush 18 is screwed to the bevel 17 to facilitate timely replacement of the cleaning brush 18.

[0042] Embodiment 3

[0043] like Figure 1-Figure 6As shown, the difference between the third embodiment and the second embodiment is that the dust collecting device includes a dust collector 21 arranged on one side of the first lower hopper 16, a second lower hopper 22 arranged on the lower side of the second lower material port 15, and the dust collector 21 is connected to the second lower hopper 22 through a conveying pipe 23. Some non-metallic converter slag is mixed with metal particles due to its small particles. When it is released through the slag separation device, the non-metallic converter slag is lighter and forms dust floating. The non-metallic converter slag is gathered by the dust collector 21 and conveyed to the second lower hopper 22 through the conveying pipe 23 for centralized treatment.

[0044] Working principle:

[0045] When using the device, the user first puts the converter slag to be processed into the drop opening 19, and the converter slag slides along the first baffle plate 20 into between the two crushing rollers 4, and the crushing rollers 4 crush the converter slag. The crushed converter slag falls on the transmission belt.

[0046] Driven by the second motor 11 on one side of the first transmission roller 8, the converter slag moves to the right.

[0047] The converter slag is screened by adjusting the magnetic strength of the magnetic roller 81, the rotation speed of the first transmission roller 8, and the inclination angle of the separation plate 13 through the controller 12. Non-metallic impurities are not affected by the magnetic force, and under the action of the conveyor belt, they move forward in a parabolic motion and enter the second discharge port 15 to timely classify and recycle the converter slag. The recycled metal converter slag can be directly used.

[0048] The cleaning brush 18 is provided to clean the surface of the conveyor belt during the conveying process of the conveyor belt. The cleaning brush 18 is subject to great wear, and the cleaning brush 18 is screwed to the bevel 17 to facilitate timely replacement of the cleaning brush 18. During the falling process of some non-metallic converter slag, the non-metallic converter slag is relatively light and forms floating dust. The non-metallic converter slag is collected by the dust collector 21 and transported to the second lower hopper 22 through the conveying pipe 23 for centralized treatment.

[0049] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A converter slag recovery device, characterized in that: It comprises a working box (1), a slag crushing device, a slag separation device and a dust collecting device; The slag crushing device comprises a middle partition (2) arranged in a working box (1), two roller frame plates (3) are symmetrically arranged on the middle partition (2), two crushing rollers (4) are arranged between the two roller frame plates (3), two fixed plates (5) are arranged on the upper side of the middle partition (2), two first motors (6) are fixedly installed on the outer side of the same fixed plate (5), and each first motor (6) is fixedly connected to each crushing roller (4) via a coupling (7); a slag separation device is arranged at the lower side of the slag crushing device; and a dust suction device is arranged at the lower side of the working box (1).

2. A converter slag recovery device according to claim 1, characterized in that: The slag separation device comprises a transmission roller limit seat (9) and a transmission roller fixing plate (10) fixedly arranged on the front side of a middle partition plate (2); a first transmission roller (8) is rotatably arranged between the transmission roller limit seat (9) and the transmission roller fixing plate (10); a second motor (11) is arranged outside the transmission roller fixing plate (10); the second motor (11) and the first transmission roller (8) are fixedly connected via a coupling (7); a magnetic roller (81) is rotatably arranged inside the middle partition plate (2); a transmission belt is sleeved on the first transmission roller (8) and the magnetic roller (81); a controller (12) is arranged on one side of a working box (1); the first motor (6) and the magnetic roller (81) are electrically connected to the controller (12) respectively; and a separation plate (13) is arranged between the two roller frame plates (3).

3. A converter slag recovery device according to claim 2, characterized in that: A first discharge port (14) penetrating the middle partition (2) is provided on the right side of the magnetic roller (81), a second discharge port (15) penetrating the middle partition (2) is provided on the right side of the first discharge port (14), and a dust collecting device is provided on the lower side of the first discharge port (14).

4. A converter slag recovery device according to claim 3, characterized in that: A first material discharge hopper (16) is arranged at the lower side of the first material discharge opening (14), an oblique opening (17) is arranged at the front side of the first material discharge hopper (16), and a cleaning brush (18) is detachably mounted on the oblique opening (17).

5. A converter slag recovery device according to claim 4, characterized in that: A through-going oblique screw hole is arranged on the oblique opening (17), a mounting screw hole is arranged on the bottom side of the cleaning brush (18), the cleaning brush (18) is placed on the oblique opening (17), and a nut passes through the oblique screw hole and is screwed to the mounting screw hole on the bottom side of the cleaning brush (18).

6. The converter slag recovery device according to claim 1, characterized in that: A material drop opening (19) is arranged at the top of the working box (1), and two first material stop plates (20) are symmetrically arranged in the material drop opening (19), wherein the distance between the two first material stop plates (20) is smaller than the distance between the roller bearings of the two crushing rollers (4).

7. The converter slag recovery device according to claim 3, characterized in that: The dust collecting device comprises a dust collector (21) arranged on one side of the first lower hopper (16), a second lower hopper (22) arranged on the lower side of the second lower material opening (15), and the dust collector (21) is connected to the second lower hopper (22) via a conveying pipe (23).

8. A converter slag recovery device according to claim 2, characterized in that: The bottom of the separation plate (13) is hinged to the front end of the second material discharge port (15), and the top of the separation plate (13) is slidably disposed in a slide groove (31) on the inner side wall of the roller frame plate (3).

9. A converter slag recovery device according to claim 2, characterized in that: The diameter of the magnetic roller (81) is greater than the diameter of the first transmission roller (8), so that the converter slag is transported upward on the transmission belt.

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