Laterite-nickel ore blending pelletizing anti-sticking device

Abstract

The utility model discloses a laterite-nickel ore mixing pelletizing anti-sticking device which comprises a base, vertical rods are arranged on the two sides of the top of the base, a roller is rotationally connected between the vertical rods, the surfaces of one set of vertical rods are rotationally connected with a rotating shaft, one end of the rotating shaft is connected with the roller, and the surfaces of the other set of vertical rods are rotationally connected with the roller through bearings. A supporting sliding base used for assisting the roller in rotating is arranged on the surface of the base, rubber belts are evenly distributed in the roller, rubber sheets are independent, the possibility that materials are stacked into large blocks is greatly reduced, and when the mixing roller rotates, the rubber sheets rotate to the vertical direction and are separated from the inner wall of the roller under the action of gravity, due to the fact that one end is fixed, the rubber sheets are separated from the inner wall of the roller. The self-gravity of the material adhered to the rubber skin is greater than the friction force with the rubber skin, so that the material falls off, and the material is not in direct contact with the inner wall of the roller in the whole material mixing process, so that the material cannot be adhered into blocks on the inner wall of the roller, and the stable operation of equipment is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of laterite nickel ore sintering production, and in particular relates to a laterite nickel ore mixing and balling anti-sticking material device. Background Art

[0002] In the sintering process of laterite nickel ore, the main function of the mixing drum is to mix the laterite nickel ore raw materials, flux, fuel and various auxiliary materials, and add an appropriate amount of water to complete the granulation and balling process to improve the air permeability of the mixture on the sintering machine, which has a vital impact on the sintering output.

[0003] At present, in order to prevent the cylinder from abrasion and sticking and improve the mixing and granulation effect, the manufacturer embeds ceramic wear-resistant lining plates and lifting plates in the mixing drum. However, due to the great difference between the properties of laterite nickel ore and ordinary iron ore, there are some problems in production. The laterite nickel ore has high free water and crystal water content, coarse particle size and strong viscosity. The contact between the mixed materials during the mixing process is insufficient. The laterite nickel ore with loose porous structure has strong water absorption and adheres to the cylinder wall, resulting in poor pelletizing effect. The sintered mixture contains a large amount of flux such as quicklime. The flux material has high viscosity after meeting water and is easy to adhere to the inner wall of the cylinder of the mixer together with the sintering raw materials. The adhesive cannot be cleaned during the production process, which causes serious material adhesion to the mixing drum, affecting the mixing and granulation effects of the mixing drum and endangering the safety of equipment operation. If it runs like this for a long time, the adhesion will be solid and it is very difficult to clean. Utility Model Content

[0004] The utility model aims to provide a laterite nickel ore mixing and balling anti-sticking material device to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a laterite nickel ore mixing and balling anti-sticking material device, comprising:

[0006] A base, with vertical poles on both sides of the top of the base, with rollers rotatably connected between the vertical poles, one group of vertical poles having a rotating shaft rotatably connected on the surface and one end of the rotating shaft connected to the roller, and the other group of vertical poles having a rotating connection with the roller via a bearing, and a supporting slide for assisting the rotation of the roller on the surface of the base, and a plurality of rubber belts for preventing material from sticking are evenly distributed inside the roller, which are connected to the inner wall of the roller through the rubber belts, so that when the roller rotates, the material is brought into contact with the rubber belts to prevent the material from sticking to the inner wall of the roller.

[0007] Preferably, one end of the rubber belt is fixed to the inner wall of the drum, and the other end covers the fixed end of an adjacent group of rubber belts.

[0008] Preferably, a feed barrel is provided at the top of one group of vertical poles, a rotating rod is rotatably connected inside the feed barrel and spiral blades are provided on the surface of the rotating rod, a motor is provided on one side of the feed barrel, and the output shaft of the motor rotates through the feed barrel and is fixedly connected to the rotating rod.

[0009] Preferably, a discharge port is provided at one end of the bottom of the feed cylinder, a feed pipe is provided on the surface of the drum and at the bottom of the discharge port, and a sealing cover is threadedly connected to the top of the feed pipe.

[0010] Preferably, a plurality of rollers are rotatably connected in the support slide, and the rollers are rollingly connected to the drum.

[0011] Preferably, a reduction motor is provided on one side of the vertical pole, a small gear is fixedly connected to the output shaft of the reduction motor, a large gear is fixedly connected to the surface of the rotating shaft, and the small gear is meshed with the large gear.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) The ceramic lining and lifting plate in the drum are removed, and the inner wall of the drum is covered with a rubber belt. Rubber is a material with excellent high and low temperature resistance, electrical properties, chemical inertness, etc. Its surface also has strong non-stick properties. Rubber skins are installed in sequence from the drum inlet to the outlet to form a rubber belt. Similarly, the entire drum is covered along the rotation direction of the drum. One end of the previous unfixed rubber belt just covers the fixed end of the next rubber belt. The main working principle is to use the adsorption capacity of the rubber skin to disperse the material. Since the rubber skins are independent of each other, the possibility of the material accumulating into large blocks is greatly reduced. During the rotation of the mixing drum, the rubber skin rotates to the vertical direction and is separated from the inner wall of the drum by gravity. Because one end is fixed, when the rubber is in the vertical direction, the material stuck to the rubber skin has a greater weight than the friction with the rubber skin and falls off. During the entire mixing process, the material does not directly contact the inner wall of the drum, so that the material will not stick to the inner wall of the drum to form blocks, thereby ensuring the stable operation of the equipment.

[0014] (2) When the reduction motor drives the drum to rotate, the bottom of the drum contacts the rotating roller in the support slide, so that the drum can drive the roller to rotate with it. While supporting the drum, it can also assist the drum to rotate, thereby reducing the friction between the drum and the vertical rod when it rotates. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a side view of the roller of the utility model;

[0017] Figure 3It is a cross-sectional view of the feed barrel of the utility model;

[0018] Figure 4 It is a side view of the support slide of the utility model.

[0019] In the figure: 1. base; 2. vertical pole; 3. roller; 4. rotating shaft; 5. bearing; 6. supporting slide; 7. rubber belt; 8. feed barrel; 9. rotating rod; 10. spiral blade; 11. motor; 12. discharge port; 13. rotating roller; 14. reduction motor; 15. small gear; 16. large gear; 17. feed pipe; 18. sealing cover. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] The utility model provides Figure 1-4 The device for mixing and pelletizing laterite nickel ore and preventing sticking material shown in the figure comprises:

[0022] A base 1 is provided with vertical rods 2 on both sides of the top of the base 1, and rollers 3 are rotatably connected between the vertical rods 2. A rotating shaft 4 is rotatably connected to the surface of one group of vertical rods 2, and one end of the rotating shaft 4 is connected to the roller 3. The surface of another group of vertical rods 2 is rotatably connected to the roller 3 through a bearing 5. A supporting slide 6 for assisting the rotation of the roller 3 is provided on the surface of the base 1. A plurality of rubber belts 7 for preventing sticking are evenly distributed inside the roller 3, and the rubber belts 7 are connected to the inner wall of the roller 3 so that when the roller 3 rotates, the material is brought into contact with the rubber belts 7 to prevent the material from sticking to the inner wall of the roller 3.

[0023] One end of the rubber belt 7 is fixed to the inner wall of the drum 3, and the other end covers the fixed end of an adjacent group of rubber belts 7. The rubber belt 7 is 2000 mm long, 650 mm wide and 3 mm thick.

[0024] A feed barrel 8 is provided on the top of one group of vertical poles 2, and a rotating rod 9 is rotatably connected inside the feed barrel 8 and a spiral blade 10 is provided on the surface of the rotating rod 9. A motor 11 is provided on one side of the feed barrel 8, and the output shaft of the motor 11 rotates through the feed barrel 8 and is fixedly connected to the rotating rod 9.

[0025] A discharge port 12 is provided at one end of the bottom of the feed cylinder 8, a feed pipe 17 is provided on the surface of the drum 3 and at the bottom of the discharge port 12, a sealing cover 18 is threadedly connected to the top of the feed pipe 17, and when feeding through the feed pipe 17 is required, the sealing cover 18 can be screwed to open the feed pipe 17, and when closing the feed pipe 17, the sealing cover 18 can be screwed in the reverse direction for sealing.

[0026] The support slide 6 is rotatably connected with a plurality of rollers 13, and the rollers 13 are rollingly connected with the drum 3. When the drum 3 rotates, the rollers 13 can be driven to rotate along with it. The rollers 13 assist the drum 3 in rotating, thereby reducing the friction between the drum 3 and the vertical rod 2 when rotating.

[0027] A reduction motor 14 is disposed on one side of the upright pole 2 , a small gear 15 is fixedly connected to the output shaft of the reduction motor 14 , a large gear 16 is fixedly connected to the surface of the rotating shaft 4 , and the small gear 15 meshes with the large gear 16 .

[0028] The laterite nickel ore mixing and balling anti-sticking device removes the ceramic lining plate and the lifting plate in the drum 3, and uses a rubber belt 7 to cover the inner wall of the drum 3. Rubber is a material with excellent high and low temperature resistance, electrical properties, chemical inertness and other characteristics. Its surface also has strong non-stick properties. Rubber skins are installed in sequence from the inlet of the drum 3 to the outlet 12 to form a rubber belt 7. Similarly, the entire drum 3 is covered along the rotation direction of the drum 3. One end of the last unfixed rubber belt 7 just covers the fixed end of the next rubber belt 7. The main working principle is to use the adsorption capacity of the rubber skin to disperse the material. Since the rubber skins are independent of each other, the possibility of the material piling up into large pieces is greatly reduced.

[0029] The material batch is transported to the feed barrel 8 by the conveyor belt, and the motor 11 is started to rotate. The motor 11 drives the rotating rod 9 and the spiral blade 10 in the feed barrel 8 to rotate, and the rotating spiral blade 10 transports the material batch in the feed barrel 8 and breaks up the material batch through the spiral blade 10 to avoid agglomeration. Under the continuous transportation of the spiral blade 10, the material batch is discharged into the feed pipe 17 with the sealing cover 18 unscrewed through the discharge port 12 at one end of the feed barrel 8, and falls into the drum 3 through the feed pipe 17. The batch of materials containing moisture will not fall directly onto the inner wall of the drum 3, but will fall onto the rubber belt 7. When mixing, the reduction motor 14 is started, and the output shaft of the reduction motor 14 drives the small gear 15 to rotate, and the small gear 15 drives the meshing large gear 16 to rotate, thereby rotating the drum 3 through the rotating shaft 4. The materials in the drum 3 are continuously brought to a certain height, thrown down and tumbled, and move forward along the inner wall of the drum 3, forming a spiral motion, from beginning to end, after multiple cycles, the mixing and granulation are completed;

[0030] Before unscrewing the sealing cover 18, the reduction motor 14 can be started to rotate the drum 3, so that the drum 3 is misaligned with the feed barrel 8 after rotation, and the reduction motor 14 stops working after the misalignment, which makes it convenient to screw the sealing cover 18 on the top of the feed tube 17. After unscrewing, the reduction motor 14 can be started again to rotate the drum 3 to drive the feed tube 17 to rotate to the discharge port 12 at the bottom of the feed barrel 8 and align it with the discharge port 12. The diameter of the feed tube 17 can be set larger than the diameter of the discharge port 12 to facilitate the material to enter the feed tube 17. After the material is dropped, repeat this operation to screw the sealing cover 18 to seal the feed tube 17.

[0031] During the rotation of drum 3, the rubber skin rotates to the vertical direction and is separated from the inner wall of drum 3 by gravity. As drum 3 rotates, the rubber belt 7 at a position exceeding 90° is separated from drum 3. The material is easily separated from the rubber belt 7 in the vertical direction. When it reaches 270°, the rubber belt 7 is re-laid on the inner wall of drum 3. During the whole process, the material does not directly contact drum 3 and the material does not stick together. Because one end is fixed and the rubber is in the vertical direction, the material stuck to the rubber skin has a gravity greater than the friction with the rubber skin and falls off. During the whole mixing process, the material does not directly contact the inner wall of drum 3, so the material will not stick together on the inner wall of drum 3, thereby ensuring the stable operation of the equipment. In addition, the rubber belt 7 has a certain material lifting effect, which creates favorable conditions for mixing and pelletizing.

[0032] When the reduction motor 14 drives the drum 3 to rotate, the bottom of the drum 3 contacts the rotating roller 13 in the supporting slide 6, so that the drum 3 can drive the rotating roller 13 to rotate along with it, which can support the drum 3 and assist the drum 3 to rotate at the same time, thereby reducing the friction between the drum 3 and the vertical rod 2 when rotating.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A laterite nickel ore mixing and pelletizing anti-sticking material device, characterized in that: include: A base (1) is provided with vertical rods (2) on both sides of the top of the base (1), and a roller (3) is rotatably connected between the vertical rods (2), a rotating shaft (4) is rotatably connected to the surface of one group of vertical rods (2), and one end of the rotating shaft (4) is connected to the roller (3), and the surface of the other group of vertical rods (2) is rotatably connected to the roller (3) through a bearing (5), and a supporting slide (6) for assisting the rotation of the roller (3) is provided on the surface of the base (1), and a plurality of rubber belts (7) for preventing material from sticking are evenly distributed inside the roller (3), and are connected to the inner wall of the roller (3) through the rubber belts (7), so that when the roller (3) rotates, the material is driven to contact the rubber belts (7) to prevent the material from sticking to the inner wall of the roller (3).

2. The device for mixing and pelletizing laterite nickel ore and preventing sticking of the laterite nickel ore according to claim 1, characterized in that: One end of the rubber belt (7) is fixed to the inner wall of the roller (3), and the other end covers the fixed end of an adjacent group of rubber belts (7).

3. The device for mixing and pelletizing laterite nickel ore and preventing sticking of the laterite nickel ore according to claim 1, characterized in that: A feed barrel (8) is provided at the top of one of the groups of vertical poles (2), a rotating rod (9) is rotatably connected inside the feed barrel (8), and a spiral blade (10) is provided on the surface of the rotating rod (9), and a motor (11) is provided on one side of the feed barrel (8), and the output shaft of the motor (11) rotates through the feed barrel (8) and is fixedly connected to the rotating rod (9).

4. A laterite nickel ore mixing and pelletizing anti-sticking material device according to claim 3, characterized in that: A discharge port (12) is provided at one end of the bottom of the feed cylinder (8), a feed pipe (17) is provided on the surface of the drum (3) and located at the bottom of the discharge port (12), and a sealing cover (18) is threadedly connected to the top of the feed pipe (17).

5. The device for mixing and pelletizing laterite nickel ore and preventing sticking of the laterite nickel ore according to claim 1, characterized in that: A plurality of rollers (13) are rotatably connected inside the support slide (6), and the rollers (13) are rollingly connected to the drum (3).

6. The device for mixing and pelletizing laterite nickel ore and preventing sticking of the laterite nickel ore according to claim 1, characterized in that: A reduction motor (14) is provided on one side of the upright pole (2), a small gear (15) is fixedly connected to the output shaft of the reduction motor (14), a large gear (16) is fixedly connected to the surface of the rotating shaft (4), and the small gear (15) meshes with the large gear (16).

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