Raw material mixing and grinding device for graphite composite refractory material production

Abstract

The invention discloses a raw material mixing and grinding device for graphite composite refractory material production, and relates to the technical field of graphite composite refractory materials, the raw material mixing and grinding device comprises a crushing box, the upper end of the crushing box is fixedly connected with a feed inlet, an inner cavity of the crushing box is provided with a crushing assembly, and the lower end of the crushing box is fixedly connected with a collection hopper; the crushing and mixing device has the advantages that the crushing assembly and the stirring mechanism are driven by the double-shaft motor at the same time, compared with a traditional crushing and mixing process which is independently arranged, the crushing and mixing device does not need to be driven by a plurality of driving assemblies respectively, energy consumption is reduced, and the crushing and mixing efficiency is improved. During working, the first output end of the double-shaft motor drives the first rotating roller to drive the crushing knife and the chopping block to crush raw materials, and the second output end of the double-shaft motor drives the stirring mechanism to operate, so that efficient integration and utilization of power are realized, and the operation energy consumption of the equipment is remarkably reduced.

Description

Technical Field

[0001] The invention relates to the technical field of graphite composite refractory materials, in particular to a raw material mixing and grinding device for producing graphite composite refractory materials. Background Art

[0002] Graphite composite refractory materials are a type of refractory material that is made by compounding graphite with other refractory raw materials (such as high alumina, magnesia, corundum, etc.) through a specific process. They combine the excellent properties of graphite with the high temperature resistance of refractory raw materials and are widely used in high-temperature industrial fields.

[0003] In the production of graphite composite refractory materials, the raw materials need to be mixed and ground. Traditional mixing and grinding devices are mostly independently set up in the crushing and mixing processes, which requires the raw materials to be connected through a complex conveying structure. Not only does it require multiple drive components to drive, resulting in energy waste, but it may also cause dust loss after crushing. Secondly, traditional mixing mechanisms mostly use single-axis mixing or simple double-axis meshing structures, which can only achieve material turning in local areas and lack multi-dimensional shear mixing effects. Especially for the heterogeneous system of graphite and refractory aggregates, it is difficult to break the material agglomeration and make it unable to disperse evenly. For this reason, we propose a raw material mixing and grinding device for the production of graphite composite refractory materials. Summary of the Invention

[0004] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0005] The present invention adopts the following technical solutions to solve the above technical problems: a raw material mixing and grinding device for the production of graphite composite refractory materials is provided, comprising a crushing box, the upper end of the crushing box is fixedly connected to a feed port, the inner cavity of the crushing box is provided with a crushing assembly, the lower end of the crushing box is fixedly connected to a collecting hopper, the lower end of the collecting hopper is fixedly connected to a connecting pipe, the other end of the connecting pipe is fixedly connected to a mixing box, one side of the mixing box is fixedly connected to the crushing box, the inner cavity of the mixing box is provided with a stirring mechanism, the stirring mechanism comprises a main stirring assembly and two slave stirring assemblies, the two slave stirring assemblies are respectively arranged on the outside of the main stirring assembly, the four corners of the lower end of the crushing box are fixedly connected to a first supporting leg, the four corners of the lower end of the mixing box are fixedly connected to a second supporting leg, and one side of the mixing box is fixedly connected to a discharge pipe.

[0006] Preferably, the crushing assembly includes a first rotating roller, which is rotatably connected to the crushing box, one end of the first rotating roller is fixedly connected to a first main gear, the first main gear is arranged on the outside of the crushing box, the outside of the first main gear is meshed with a first slave gear, one end of the first slave gear is fixedly connected to a second rotating roller, and the second rotating roller is also rotatably connected to the crushing box.

[0007] Preferably, the outer sides of the first rotating roller and the first slave gear are fixedly connected with crushing knives, the two sets of crushing knives are arranged in the inner cavity of the crushing box, and a dual-axis motor is provided at the upper end of the mixing box, and the first output end of the dual-axis motor is fixedly connected to the first rotating roller.

[0008] Preferably, the main stirring assembly includes a first stirring shaft, which is rotatably connected to the mixing box, a plurality of main stirring rods are fixedly connected to the outer side of the first stirring shaft, the upper end of the first stirring shaft is fixedly connected to a slave cone wheel, and the slave cone wheel is arranged on the outer side of the mixing box, and the second output end of the dual-shaft motor is fixedly connected to the main cone wheel, and the main cone wheel is meshed with the slave cone wheel.

[0009] Preferably, the slave stirring assembly close to the side of the main stirring assembly includes a second stirring shaft, the second stirring shaft is slidably connected to the mixing box, a plurality of slave stirring rods are fixedly connected to the outer side of the second stirring shaft, the plurality of slave stirring rods and the plurality of main stirring rods are staggered, the second stirring shaft is also fixedly connected to the outer side of the second slave gear, the outer side of the first stirring shaft is fixedly connected to the second main gear, and the second slave gear is meshed with the second main gear.

[0010] Preferably, the slave stirring assembly close to the other side of the main stirring assembly includes a third stirring shaft, and a plurality of slave stirring rods are also fixedly connected to the outer side of the third stirring shaft. A third slave gear is fixedly connected to the outer side of the third stirring shaft, and the third slave gear is also engaged with the second main gear.

[0011] Preferably, a gear ring is fixedly connected to the inner wall of the mixing box, and the second slave gear and the third slave gear are both engaged with the inner side of the gear ring.

[0012] Preferably, the upper ends of the second stirring shaft and the third stirring shaft are fixedly connected to a limiting circular plate, the upper end of the inner wall of the mixing box is provided with a limiting groove, and the two limiting circular plates are slidably connected to the inner side of the limiting groove.

[0013] Preferably, a chute is provided at the lower end of the inner wall of the mixing box, and the lower ends of the second stirring shaft and the third stirring shaft are slidably connected to the inner side of the chute.

[0014] Preferably, the lower end of the dual-shaft motor is fixedly connected to a mounting base, and the dual-shaft motor is fixedly mounted on the upper end of the mixing box through the mounting base.

[0015] Compared with the prior art, the present invention provides a raw material mixing and grinding device for producing graphite composite refractory materials, which has the following beneficial effects:

[0016] 1. This raw material mixing and grinding device for the production of graphite composite refractory materials adopts a dual-axis motor to simultaneously drive the crushing component and the stirring mechanism. Compared with the traditional independent crushing and mixing processes, it does not require multiple drive components to drive separately, thereby reducing energy consumption. When working, the first output end of the dual-axis motor drives the first rotating roller to drive the crushing knife to crush the raw materials, and the second output end drives the stirring mechanism to operate, realizing efficient integration and utilization of power and significantly reducing the energy consumption of equipment operation.

[0017] 2. This raw material mixing and grinding device for the production of graphite composite refractory materials forms a closed material transmission channel by directly connecting the crushing box and the mixing box through the collecting hopper and the connecting pipe. After the raw materials are crushed in the crushing box, they slide directly into the mixing box through the collecting hopper and the connecting pipe, reducing the exposure of the material during the transmission process and avoiding the escape of dust to a great extent. It not only reduces the loss of raw materials, but also improves the production environment and reduces the harm to the health of operators.

[0018] 3. This raw material mixing and grinding device for the production of graphite composite refractory materials forms a multi-dimensional shear mixing effect during the mixing process through the mutual cooperation of the main stirring component and the two slave stirring components, and the staggered arrangement of multiple main stirring rods and slave stirring rods. At the same time, the second slave gear and the third slave gear in the slave stirring component roll on the inner side of the gear ring, so that the second stirring shaft and the third stirring shaft rotate and revolve at the same time, further enhancing the uniformity of mixing. This stirring design can effectively break the material agglomeration between the powder raw materials and ensure that the materials are fully and evenly dispersed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0020] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0021] Figure 3 It is a cross-sectional view of the overall structure of the present invention;

[0022] Figure 4 Schematic diagram of part of the structure of the present invention Figure 1 ;

[0023] Figure 5 Schematic diagram of part of the structure of the present invention Figure 2 ;

[0024] Figure 6 Schematic diagram of part of the structure of the present invention Figure 3 ;

[0025] Figure 7 This is an enlarged structural diagram of point A of the present invention;

[0026] Figure 8 It is a schematic diagram of the enlarged structure of point B of the present invention.

[0027] In the figure: 1. Crushing box; 2. First supporting leg; 3. Feeding port; 4. Mixing box; 5. Mounting seat; 6. Dual-axis motor; 7. First rotating roller; 8. First main gear; 9. First slave gear; 10. Second rotating roller; 11. Crushing knife; 12. Collecting hopper; 13. Connecting pipe; 14. Main cone wheel; 15. Slave cone wheel; 16. First stirring shaft; 17. Second main gear; 18. Main stirring rod; 19. Second slave gear; 20. Second stirring shaft; 21. Slave stirring rod; 22. Limiting circular plate; 23. Limiting groove; 24. Third slave gear; 25. Third stirring shaft; 26. Gear ring; 27. Discharge pipe; 28. Second supporting leg; 29. ​​Slide. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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 are within the scope of protection of the present invention.

[0029] See also Figure 1-8 A raw material mixing and grinding device for the production of graphite composite refractory materials includes a crushing box 1, the upper end of the crushing box 1 is fixedly connected to a feed port 3, the inner cavity of the crushing box 1 is provided with a crushing assembly, the lower end of the crushing box 1 is fixedly connected to a collecting hopper 12, the lower end of the collecting hopper 12 is fixedly connected to a connecting pipe 13, the other end of the connecting pipe 13 is fixedly connected to a mixing box 4, one side of the mixing box 4 is fixedly connected to the crushing box 1, and the inner cavity of the mixing box 4 is provided with a stirring mechanism, the stirring mechanism includes a main stirring assembly and two slave stirring assemblies, and the two slave stirring assemblies are respectively arranged on the outside of the main stirring assembly, the four corners of the lower end of the crushing box 1 are fixedly connected to the first supporting legs 2, the four corners of the lower end of the mixing box 4 are fixedly connected to the second supporting legs 28, and one side of the mixing box 4 is fixedly connected to the discharge pipe 27.

[0030] In this embodiment, the crushing assembly includes a first rotating roller 7, which is rotatably connected to the crushing box 1. One end of the first rotating roller 7 is fixedly connected to the first main gear 8, which is arranged on the outside of the crushing box 1. The outside of the first main gear 8 is meshed with a first slave gear 9, and one end of the first slave gear 9 is fixedly connected to the second rotating roller 10. The second rotating roller 10 is also rotatably connected to the crushing box 1. The outsides of the first rotating roller 7 and the first slave gear 9 are both fixedly connected to crushing knives 11. Both sets of crushing knives 11 are arranged in the inner cavity of the crushing box 1, and a dual-axis motor 6 is provided at the upper end of the mixing box 4. The first output end of the dual-axis motor 6 is fixedly connected to the first rotating roller 7.

[0031] Specifically, the raw materials for preparing graphite composite refractory materials are first put into the crushing box 1 from the feed port 3, and the dual-axis motor 6 is started at this time. The first output end of the dual-axis motor 6 will drive the first rotating roller 7 to rotate, and the second rotating roller 10 can be driven to rotate in the opposite direction through the engagement transmission of the first main gear 8 and the first slave gear 9, so that the crushing knives 11 on the outside of the first rotating roller 7 and the second rotating roller 10 cooperate with each other to crush the raw materials. At this time, the crushed raw materials slide into the mixing box 4 through the collecting hopper 12 and the connecting pipe 13.

[0032] In this embodiment, the main stirring assembly includes a first stirring shaft 16, which is rotatably connected to the mixing box 4. A plurality of main stirring rods 18 are fixedly connected to the outside of the first stirring shaft 16. The upper end of the first stirring shaft 16 is fixedly connected to a slave cone wheel 15, which is arranged on the outside of the mixing box 4. The second output end of the dual-axis motor 6 is fixedly connected to the main cone wheel 14, and the main cone wheel 14 is meshed with the slave cone wheel 15.

[0033] Specifically, when the dual-axis motor 6 is started, the second output end of the dual-axis motor 6 will drive the main cone wheel 14 to rotate. Through the engagement of the main cone wheel 14 with the slave cone wheel 15, the first stirring shaft 16 can be driven to rotate, and then the multiple main stirring rods 18 on the first stirring shaft 16 can be rotated to perform preliminary stirring on the crushed raw materials.

[0034] In this embodiment, the slave stirring assembly near the side of the main stirring assembly includes a second stirring shaft 20, which is slidingly connected to the mixing box 4. The outer side of the second stirring shaft 20 is fixedly connected with a plurality of slave stirring rods 21, and the plurality of slave stirring rods 21 are staggered with the plurality of main stirring rods 18. The outer side of the second stirring shaft 20 is also fixedly connected with a second slave gear 19, and the outer side of the first stirring shaft 16 is fixedly connected with a second main gear 17, and the second slave gear 19 is meshed with the second main gear 17. The slave stirring assembly near the other side of the main stirring assembly includes a third stirring shaft 25, and the outer side of the third stirring shaft 25 is also fixedly connected with a plurality of slave stirring rods 21, and the outer side of the third stirring shaft 25 is fixedly connected with a third slave gear 24, and the third slave gear 24 is also meshed with the second main gear 17.

[0035] Specifically, the second main gear 17 on the outside of the first stirring shaft 16 is engaged with the second slave gear 19 and the third slave gear 24 respectively, thereby driving the second stirring shaft 20 and the third stirring shaft 25 to rotate, so as to realize the rotation of multiple corresponding slave stirring rods 21 on the outside of the second stirring shaft 20 and the third stirring shaft 25, and further stirring the crushed raw materials. At this time, the multiple slave stirring rods 21 are staggered with the multiple main stirring rods 18, which can not only enhance the stirring effect, but also effectively avoid the collision between the two to affect the stirring effect.

[0036] In this embodiment, a gear ring 26 is fixedly connected to the inner wall of the mixing box 4, the second slave gear 19 and the third slave gear 24 are both meshed on the inner side of the gear ring 26, the upper ends of the second stirring shaft 20 and the third stirring shaft 25 are both fixedly connected to the limiting circular plate 22, a limiting groove 23 is provided at the upper end of the inner wall of the mixing box 4, and the two limiting circular plates 22 are both slidably connected to the inner side of the limiting groove 23, a slide groove 29 is provided at the lower end of the inner wall of the mixing box 4, and the lower ends of the second stirring shaft 20 and the third stirring shaft 25 are both slidably connected to the inner side of the slide groove 29.

[0037] Specifically, the gear ring 26 fixedly connected to the inner wall of the mixing box 4 is like a precise track, and the second slave gear 19 and the third slave gear 24 are tightly engaged with the inner side of the gear ring 26. Under the drive of the first stirring shaft 16 through the second main gear 17, the second slave gear 19 and the third slave gear 24 will not only rotate around their own axes, but also revolve along the trajectory of the gear ring 26. This allows the second stirring shaft 20 and the third stirring shaft 25 connected to the gears to drive the slave stirring rod 21 to perform conventional stirring of the material while also traveling through the mixing box 4 in a circular path, thereby achieving all-round and dead-angle stirring of the material, further improving the mixing uniformity.

[0038] More specifically, the limiting circular plate 22 fixedly connected to the upper ends of the second stirring shaft 20 and the third stirring shaft 25 is slidably connected to the limiting groove 23 at the upper end of the inner wall of the mixing box 4, and is slidably connected to the slide groove 29 at the lower end of the inner wall of the mixing box 4 through its lower end. Through the synergistic effect of the upper and lower double limiting structures, the second stirring shaft 20 and the third stirring shaft 25 can always run smoothly along the predetermined trajectory under the complex movement of their own rotation and revolution, avoiding unstable phenomena such as shaking and offset.

[0039] In this embodiment, the lower end of the dual-axis motor 6 is fixedly connected to the mounting base 5 , and the dual-axis motor 6 is fixedly mounted on the upper end of the mixing box 4 through the mounting base 5 .

[0040] Specifically, the design of the mounting base 5 can improve the stability of the dual-axis motor 6 during operation.

[0041] During operation, the raw materials for preparing graphite composite refractory materials are put into the crushing box 1 from the feed port 3, and the dual-axis motor 6 is started at this time. The first output end of the dual-axis motor 6 will drive the first rotating roller 7 to rotate, and through the meshing transmission of the first main gear 8 and the first slave gear 9, the second rotating roller 10 can be driven to rotate in the opposite direction, so that the crushing cutters 11 on the outside of the first rotating roller 7 and the second rotating roller 10 cooperate with each other to crush the raw materials. At this time, the crushed raw materials slide into the mixing box 4 through the collecting hopper 12 and the connecting pipe 13. When the dual-axis motor 6 is started, the second output end of the dual-axis motor 6 will drive the main cone wheel 14 to rotate, and the main cone wheel 14 is meshed with the slave cone wheel 15 to drive the first stirring shaft 16 to rotate, so that the multiple main stirring rods 18 on the first stirring shaft 16 can rotate to stir the crushed raw materials. 19, the third slave gear 24 is meshed with each other, thereby driving the second stirring shaft 20 and the third stirring shaft 25 to rotate, so that the multiple corresponding slave stirring rods 21 outside the second stirring shaft 20 and the third stirring shaft 25 rotate, and further stir the crushed raw materials. At this time, the multiple slave stirring rods 21 are staggered with the multiple main stirring rods 18, which can not only enhance the stirring effect, but also effectively avoid the collision between the two affecting the stirring effect. By rolling the second slave gear 19 and the third slave gear 24 on the inner side of the gear ring 26, the second stirring shaft 20 and the third stirring shaft 25 can be made to rotate while also revolving, further improving the mixing uniformity. The limiting circular plate 22 fixedly connected to the upper ends of the second stirring shaft 20 and the third stirring shaft 25 slides in the limiting groove 23 and the lower end slides in the slide groove 29, which can ensure the stability of the stirring process. Finally, the evenly mixed raw materials are discharged from the discharge pipe 27 for the next process.

[0042] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0043] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A raw material mixing and grinding device for producing graphite composite refractory materials, comprising a crushing box (1), characterized in that: The upper end of the crushing box (1) is fixedly connected to a feed port (3), the inner cavity of the crushing box (1) is provided with a crushing assembly, the lower end of the crushing box (1) is fixedly connected to a collecting hopper (12), the lower end of the collecting hopper (12) is fixedly connected to a connecting pipe (13), the other end of the connecting pipe (13) is fixedly connected to a mixing box (4), one side of the mixing box (4) is fixedly connected to the crushing box (1), the inner cavity of the mixing box (4) is provided with a stirring mechanism, the stirring mechanism includes a main stirring assembly and two slave stirring assemblies, the two slave stirring assemblies are respectively arranged on the outside of the main stirring assembly, the four corners of the lower end of the crushing box (1) are fixedly connected to the first supporting leg (2), the four corners of the lower end of the mixing box (4) are fixedly connected to the second supporting leg (28), and one side of the mixing box (4) is fixedly connected to the discharge pipe (27).

2. The raw material mixing and grinding device for producing graphite composite refractory materials according to claim 1, characterized in that: The crushing assembly comprises a first rotating roller (7), the first rotating roller (7) being rotatably connected to the crushing box (1), one end of the first rotating roller (7) being fixedly connected to a first main gear (8), the first main gear (8) being arranged on the outside of the crushing box (1), the outside of the first main gear (8) being meshed with a first slave gear (9), one end of the first slave gear (9) being fixedly connected to a second rotating roller (10), the second rotating roller (10) being also rotatably connected to the crushing box (1).

3. The raw material mixing and grinding device for producing graphite composite refractory materials according to claim 2, characterized in that: Crushing blades (11) are fixedly connected to the outer sides of the first rotating roller (7) and the first slave gear (9), and the two sets of crushing blades (11) are both arranged in the inner cavity of the crushing box (1). A double-axis motor (6) is provided at the upper end of the mixing box (4), and the first output end of the double-axis motor (6) is fixedly connected to the first rotating roller (7).

4. The raw material mixing and grinding device for producing graphite composite refractory materials according to claim 3, characterized in that: The main stirring assembly comprises a first stirring shaft (16), the first stirring shaft (16) is rotatably connected to the mixing box (4), a plurality of main stirring rods (18) are fixedly connected to the outer side of the first stirring shaft (16), the upper end of the first stirring shaft (16) is fixedly connected to a slave cone wheel (15), the slave cone wheel (15) is arranged on the outer side of the mixing box (4), the second output end of the dual-shaft motor (6) is fixedly connected to the main cone wheel (14), and the main cone wheel (14) is meshed with the slave cone wheel (15).

5. The raw material mixing and grinding device for producing graphite composite refractory materials according to claim 4, characterized in that: The slave stirring assembly near the main stirring assembly comprises a second stirring shaft (20), the second stirring shaft (20) is slidably connected to the mixing box (4), a plurality of slave stirring rods (21) are fixedly connected to the outer side of the second stirring shaft (20), the plurality of slave stirring rods (21) and the plurality of main stirring rods (18) are staggered, a second slave gear (19) is also fixedly connected to the outer side of the second stirring shaft (20), a second main gear (17) is fixedly connected to the outer side of the first stirring shaft (16), and the second slave gear (19) is meshed with the second main gear (17).

6. The raw material mixing and grinding device for producing graphite composite refractory materials according to claim 5, characterized in that: The slave stirring assembly near the other side of the main stirring assembly includes a third stirring shaft (25), and the outer side of the third stirring shaft (25) is also fixedly connected to a plurality of slave stirring rods (21). The outer side of the third stirring shaft (25) is also fixedly connected to a third slave gear (24), and the third slave gear (24) is also meshed with the second main gear (17).

7. The raw material mixing and grinding device for producing graphite composite refractory materials according to claim 6, characterized in that: A gear ring (26) is fixedly connected to the inner wall of the mixing box (4), and the second slave gear (19) and the third slave gear (24) are both engaged with the inner side of the gear ring (26).

8. The raw material mixing and grinding device for producing graphite composite refractory materials according to claim 6, characterized in that: The upper ends of the second stirring shaft (20) and the third stirring shaft (25) are fixedly connected to a limiting circular plate (22), and a limiting groove (23) is provided at the upper end of the inner wall of the mixing box (4). The two limiting circular plates (22) are slidably connected to the inner side of the limiting groove (23).

9. The raw material mixing and grinding device for producing graphite composite refractory materials according to claim 6, characterized in that: A chute (29) is provided at the lower end of the inner wall of the mixing box (4), and the lower ends of the second stirring shaft (20) and the third stirring shaft (25) are both slidably connected to the inner side of the chute (29).

10. The raw material mixing and grinding device for producing graphite composite refractory materials according to claim 3, characterized in that: The lower end of the dual-shaft motor (6) is fixedly connected to a mounting seat (5), and the dual-shaft motor (6) is fixedly mounted on the upper end of the mixing box (4) via the mounting seat (5).

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