Uniform crushing and grinding device for blast furnace slag

Abstract

The utility model provides a blast furnace slag uniform crushing and grinding device which comprises a frame body, a screen drum is rotatably mounted on the frame body, a plurality of guide plates are fixedly mounted in the screen drum, a crushing roller group and a grinding roller group are arranged in the screen drum, the crushing roller group comprises two crushing rollers, the crushing rollers are rotatably connected with the frame body, and the grinding roller group comprises two grinding rollers. The grinding roller is rotationally connected with the frame body, the crushing roller set is arranged above the grinding roller set, a first gear set is arranged on the crushing roller set and comprises two first gears, the first gears are fixedly connected with the crushing roller, a second gear set is arranged on the grinding roller set and comprises two second gears, and the second gears are fixedly connected with the grinding roller. The first motor is fixedly installed on the frame body, the output end of the first motor is fixedly connected with one second gear of the second gear set, the first gear set is in transmission connection with the second gear set, and the crushing roller set and the grinding roller set are arranged in the screen drum, so that slag can be ground after being crushed.

Description

Technical Field

[0001] The utility model belongs to the technical field of slag crushers and relates to a blast furnace slag uniform crushing and grinding device. Background Art

[0002] Slag is a byproduct of the blast furnace ironmaking process. During this process, iron oxide is reduced to metallic iron at high temperatures. Impurities such as silica and alumina in the iron ore react with lime to form a molten material primarily composed of silicates and aluminosilicates. After quenching, this material becomes a loose, porous, granular substance known as blast furnace slag, or simply slag.

[0003] Slag plays a vital role in industrial production, particularly in large-scale factories. Slag is refined and processed into slag cement, slag powder, slag Portland cement, slag wool, blast furnace slag, slag powder, copper slag, and slag vertical mills. This process saves energy. However, slag does cause air pollution, and people who have worked in mines for many years are susceptible to respiratory diseases.

[0004] Whether it's slag recycling or harmless disposal, crushing and grinding are key steps in the process. The degree of crushing and grinding directly affects the efficiency of subsequent slag processing. Common crushing and grinding methods often fail to completely crush slag, and during the crushing process, large slag chunks accumulate in the crushing equipment, which also leads to uneven crushing.

[0005] In view of this, it is necessary to provide a blast furnace slag uniform crushing and grinding device. Utility Model Content

[0006] The purpose of the utility model is to provide a blast furnace slag uniform crushing and grinding device to solve the problem of uneven slag crushing.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a blast furnace slag uniform crushing and grinding device, comprising a frame, a screen drum rotatably mounted on the frame, a plurality of guide plates fixedly mounted in the screen drum, a crushing roller group and a grinding roller group are arranged in the screen drum, the crushing roller group includes two crushing rollers, the crushing roller is rotatably connected to the frame, the grinding roller group includes two grinding rollers, and the grinding roller is rotatably connected to the frame, the crushing roller group is arranged above the grinding roller group, a gear group 1 is provided on the crushing roller group, the gear group 1 includes two gear 1s, the gear 1 is fixedly connected to the crushing roller, the grinding roller group is provided with a gear group 2, the gear group 2 includes two gear 2s, the gear 2 is fixedly connected to the grinding roller, a motor 1 is fixedly mounted on the frame, the output end of the motor 1 is fixedly connected to one of the gears 2 of the gear group 2, and the gear group 1 and the gear group 2 are transmission connected.

[0008] Preferably, a bearing is provided on the frame, the frame is fixedly connected to the outer ring of the bearing, and the screen drum is fixedly connected to the inner ring of the bearing.

[0009] Preferably, a motor 2 is fixedly mounted on the frame, a gear set 3 is provided on the frame, the gear set 3 includes two gears 3, the gears 3 are rotatably connected to the frame, and the output end of the motor 2 is fixedly connected to one of the gears 3 in the gear set 3.

[0010] Preferably, a large gear is fixedly mounted on one end of the screen drum, and the large gear is connected to the gear in a three-meshing manner.

[0011] Preferably, a conveying device is provided on the frame, and the conveying device is arranged directly below the screen drum.

[0012] Preferably, a baffle is fixedly mounted on the frame, and the baffle is arranged in cooperation with the screen drum.

[0013] Preferably, a sprocket 1 is fixedly mounted on the output end of the motor 1, a sprocket 2 is fixedly mounted on one of the crushing rollers, and the sprocket 1 and the sprocket 2 are connected via a chain transmission.

[0014] Preferably, one end of the crushing roller is rotatably connected to the frame, and the other end is rotatably connected to the baffle; one end of the grinding roller is rotatably connected to the frame, and the other end is rotatably connected to the baffle.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. By setting the crushing roller group and the grinding roller group in the screen drum, the slag can be ground after crushing;

[0017] 2. Multiple guide plates are installed on the screen drum so that the slag that cannot be screened out can pass through the rotation of the screen drum and be crushed and ground again;

[0018] 3. A baffle is set on one side of the feed end of the screen drum to prevent the slag from splashing out of the screen drum when it is crushed and ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 A schematic diagram of the three-dimensional structure of the present invention from another perspective;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the internal structure of the screen drum of the present invention (omitting the baffle);

[0022] Figure 4 This is a schematic diagram of the main structure of the utility model (omitting the baffle);

[0023] In the figure: 1. Frame, 11. Motor 1, 12. Bearing, 13. Motor 2, 14. Baffle, 15. Sprocket 1, 16. Chain, 17. Sprocket 2, 2. Screen drum, 21. Guide plate, 3. Crushing roller group, 31. Crushing roller, 4. Grinding roller group, 41. Grinding roller, 5. Gear group 1, 51. Gear 1, 6. Gear group 2, 61. Gear 2, 7. Gear group 3, 71. Gear 3, 8. Large gear, 9. Conveying device. DETAILED DESCRIPTION

[0024] To make the purpose, advantages, and technical solutions of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be understood that the terms "length," "width," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, in the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

[0026] according to Figure 1-4, this embodiment provides a blast furnace slag uniform crushing and grinding device, including a frame 1, a screen drum 2 is rotatably installed on the frame 1, and a plurality of guide plates 21 are fixedly installed in the screen drum 2. By arranging a plurality of guide plates 21 on the inner wall of the screen drum 2, the unscreened slag can be crushed and ground again as the guide plates 21 rotate. A crushing roller group 3 and a grinding roller group 4 are arranged in the screen drum 2, and the crushing roller group 3 includes two crushing rollers 31, which are rotatably connected to the frame 1. The grinding roller group 4 includes two grinding rollers 41, which are rotatably connected to the frame 1. The crushing roller group 3 is arranged above the grinding roller group 4, so that the slag can be crushed first Crushed and then ground, the crushing roller group 3 is provided with a gear group 1 5, and the grinding roller group 4 is provided with a gear group 2 6, the gear group 1 5 includes two gears 1 51, and the gear 1 51 is fixedly connected to the crushing roller 31, the gear group 2 6 includes two gears 2 61, and the gear 2 61 is fixedly connected to the grinding roller 41, and a motor 11 is fixedly installed on the frame 1, and the output end of the motor 11 is fixedly connected to one of the gears 2 61 of the gear group 2 6, the gear group 1 5 and the gear group 2 6 are connected by transmission, and the gear 2 61 is driven to rotate by the motor 11. Since the gear group 1 5 and the gear group 2 6 are connected by transmission, the gear 1 51 can also rotate.

[0027] A bearing 12 is provided on the frame 1, and the frame 1 is fixedly connected to the outer ring of the bearing 12, and the screen drum 2 is fixedly connected to the inner ring of the bearing 12. By installing the bearing 12, the screen drum 2 will not generate hard friction with the frame 1, thereby damaging the screen drum 2.

[0028] A motor 2 13 is fixedly mounted on the frame 1, and a gear set 3 7 is provided on the frame 1. The gear set 3 7 includes a gear 3 71, and the gear 3 71 is rotatably connected to the frame 1. By installing a rotating shaft on the frame 1, the gear 3 71 is fixedly connected to the rotating shaft, so that the gear 3 71 can rotate on the frame 1. The output end of the motor 2 13 is fixedly connected to one of the gears 3 71 in the gear set 3 7, and the gear 3 71 is driven to rotate by the motor 2 13.

[0029] A large gear 8 is fixedly mounted on one end of the screen drum 2, and the large gear 8 is meshed with the gear three 71. The rotation of the driving gear three 71 drives the rotation of the large gear 8, so that the screen drum 2 can also rotate.

[0030] The frame 1 is provided with a conveying device 9 , which is arranged just below the screen drum 2 . The conveying device 9 is a chain conveyor for conveying the ground slag.

[0031] The baffle 14 is arranged in cooperation with the screen drum 2. By arranging the baffle 14, the slag is prevented from splashing out of the screen drum 2 when the slag is crushed and ground.

[0032] A sprocket 15 is fixedly mounted on the output end of the motor 11, and a sprocket 2 17 is fixedly mounted on one of the crushing rollers 31. The sprocket 15 and the sprocket 2 17 are connected to each other through a chain 16. The arrangement of the sprocket 15, the chain 16 and the sprocket 2 17 realizes the transmission connection between the gear set 1 5 and the gear set 2 6.

[0033] A baffle 14 is fixedly installed on the frame 1, and the baffle 14 plays a certain dust-proof role to prevent the slag from generating smoke when it is ground and moved. At the same time, the material is fed through the space generated by the baffle 14 and the upper end of the frame 1. One end of the crushing roller 31 is rotatably connected to the frame 1, and the other end is rotatably connected to the baffle 14. One end of the grinding roller 41 is rotatably connected to the frame 1, and the other end is rotatably connected to the baffle 14, so that both ends of the crushing roller 31 and the grinding roller 41 can be supported and rotated smoothly.

[0034] The specific operation is as follows: start motor 2 13, start motor 11, so that gear group 1 5 and gear group 2 6 rotate, the two gears 1 51 included in gear group 1 5 rotate in opposite directions, and the two gears 2 61 included in gear group 2 6 rotate in opposite directions, driving gear 3 71, so that the large gear 8 meshing with gear 3 71 rotates, thereby rotating the screen drum 2, and throwing the slag from above the baffle 14, so that the slag is crushed by the crushing roller group 3, and the crushed ore will fall onto the grinding roller group 4. At the same time, the frame 1 and the baffle 14 prevent the crushed slag from falling out of the screen drum 2, and the grinding roller group 4 grinds the crushed slag so that the ground slag falls on the inner wall of the screen drum 2, and then is screened out of the screen drum 2 and transported by the conveying device 9. The slag that is not screened will be blocked by the guide plate 21, so that the slag and the screen drum 2 will not produce relative movement. When the screen drum 2 rotates a certain angle, the slag will fall on the crushing roller group 3 again due to gravity, and it will be crushed and ground again.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A blast furnace slag uniform crushing and grinding device, comprising a frame (1), characterized in that: A screen drum (2) is rotatably mounted on the frame (1), a plurality of guide plates (21) are fixedly mounted in the screen drum (2), a crushing roller group (3) and a grinding roller group (4) are arranged in the screen drum (2), the crushing roller group (3) includes two crushing rollers (31), the crushing rollers (31) are rotatably connected to the frame (1), the grinding roller group (4) includes two grinding rollers (41), the grinding rollers (41) are rotatably connected to the frame (1), the crushing roller group (3) is arranged above the grinding roller group (4), and a gear group (1) is arranged on the crushing roller group (3). 5), the gear group 1 (5) includes two gears 1 (51), the gears 1 (51) are fixedly connected to the crushing roller (31), the grinding roller group (4) is provided with a gear group 2 (6), the gear group 2 (6) includes two gears 2 (61), the gears 2 (61) are fixedly connected to the grinding roller (41), a motor 1 (11) is fixedly mounted on the frame (1), the output end of the motor 1 (11) is fixedly connected to one of the grinding rollers (41) of the grinding roller group (4), and the gear group 1 (5) and the gear group 2 (6) are transmission-connected.

2. The blast furnace slag uniform crushing and grinding device according to claim 1, characterized in that: A bearing (12) is provided on the frame (1), the frame (1) is fixedly connected to the outer ring of the bearing (12), and the screen drum (2) is fixedly connected to the inner ring of the bearing (12).

3. The blast furnace slag uniform crushing and grinding device according to claim 1, characterized in that: A motor 2 (13) is fixedly mounted on the frame (1), and a gear set 3 (7) is provided on the frame (1). The gear set 3 (7) includes two gears 3 (71), and the gears 3 (71) are rotatably connected to the frame (1). The output end of the motor 2 (13) is fixedly connected to one of the gears 3 (71) in the gear set 3 (7).

4. The blast furnace slag uniform crushing and grinding device according to claim 3, characterized in that: A large gear (8) is fixedly mounted on one end of the screen drum (2), and the large gear (8) is meshedly connected with gear three (71).

5. The blast furnace slag uniform crushing and grinding device according to claim 1, characterized in that: A conveying device (9) is provided on the frame (1), and the conveying device (9) is arranged directly below the screen drum (2).

6. The blast furnace slag uniform crushing and grinding device according to claim 1, characterized in that: A baffle (14) is fixedly mounted on the frame (1), and the baffle (14) is arranged in cooperation with the screen drum (2).

7. The blast furnace slag uniform crushing and grinding device according to claim 1, characterized in that: The output end of the motor 1 (11) is fixedly mounted with a sprocket 1 (15), and one of the crushing rollers (31) is fixedly mounted with a sprocket 2 (17), and the sprocket 1 (15) and the sprocket 2 (17) are connected to each other through a chain (16).

8. The blast furnace slag uniform crushing and grinding device according to claim 6, characterized in that: One end of the crushing roller (31) is rotatably connected to the frame (1), and the other end is rotatably connected to the baffle (14); one end of the grinding roller (41) is rotatably connected to the frame (1), and the other end is rotatably connected to the baffle (14).

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