CN115253864B - A raw material mixing device for silicon carbide ceramic production - Google Patents

Abstract

The invention is applicable to the technical field of silicon carbide ceramic production, and provides a raw material mixing device for silicon carbide ceramic production, which comprises the following components: the mixing box is provided with a feed pipe and a discharge pipe respectively; the stirring assembly is arranged in the mixing box; the stirring assembly comprises a control box, a stirring rod, a first rotating shaft, a stirring plate and a grinding roller, wherein the control box is arranged on the mixing box through a driving shaft, the driving shaft is in running fit with the control box, the stirring rod is arranged on the control box through the first rotating shaft, the first rotating shaft is connected with the driving shaft through a linkage assembly, the stirring plate is arranged on the control box, a plurality of groups of filtering holes are formed in the stirring plate, the grinding roller is arranged on the control box through a second rotating shaft, and a speed induction type transmission assembly for driving the control box to rotate is further arranged on the driving shaft.

Description

A raw material mixing device for silicon carbide ceramic production

Technical field

The invention relates to the technical field of silicon carbide ceramic production, specifically a raw material mixing device for silicon carbide ceramic production.

Background technique

SiC ceramics not only have excellent room temperature mechanical properties, such as high bending strength, excellent oxidation resistance, good corrosion resistance, high wear resistance and low friction coefficient, but also high temperature mechanical properties (strength, creep resistance etc.) is the best among known ceramic materials. The overall process flow of the silicon carbide production line is that the raw materials quartz sand, anthracite, petroleum coke, and silicon powder are transported to the factory via vehicles for unloading, storage, batching, mixing, furnace loading, smelting, cooling, grating, furnace classification, and crushing In a series of processes such as screening and grinding, the ingredients and mixing are weighed and mixed according to the proportion of quartz sand, anthracite, petroleum coke, and silica powder. The mixing is fully mixed and stirred by a mixer, so the raw materials are mixed Whether it is uniform or not directly affects the production quality of silicon carbide ceramics.

Existing mixers are generally more traditional, with simple mixing structures, making it difficult to mix raw materials evenly, and raw materials that are not fully crushed will also affect the mixing effect, thereby affecting the production quality of silicon ceramics. Therefore, in view of the above current situation, there is an urgent need to provide a raw material mixing device for silicon carbide ceramic production to overcome the shortcomings in current practical applications.

Contents of the invention

The purpose of the present invention is to provide a raw material mixing device for the production of silicon carbide ceramics, aiming to solve the following problems: existing mixers are generally relatively traditional, have simple stirring structures, are difficult to achieve uniform mixing of raw materials, and raw materials that are not fully crushed will also be It affects the mixing effect and thus the production quality of silicon ceramics, making it difficult to be widely used.

The present invention is implemented as follows: a raw material mixing device for the production of silicon carbide ceramics. The raw material mixing device for the production of silicon carbide ceramics includes:

A mixing box, the mixing box is provided with a feed pipe and a discharge pipe respectively;

Stirring component, the stirring component is installed in the mixing box; wherein the stirring component includes a control box, a stirring rod, a first rotating shaft, a stirring plate and a rolling roller, the control box is installed on the mixing box through a drive shaft, and The mixing box is also provided with a driving assembly for driving the driving shaft to rotate. The driving shaft and the control box are in rotational cooperation. The mixing rod is installed on the control box through the first rotating shaft, and the first rotating shaft and the driving shaft are connected through linkage components, the stirring plate is installed on the control box, and multiple sets of filter holes are provided on the stirring plate, the rolling roller is installed on the control box through the second rotating shaft, and the driving shaft is also provided with There is a speed-sensitive transmission assembly used to drive the control box to rotate.

Compared with the existing technology, the beneficial effects of the present invention are:

The drive assembly drives the drive shaft to rotate at a low speed. The speed-sensitive transmission assembly does not work and the control box does not follow the drive shaft to rotate. The drive shaft cooperates with the linkage assembly to drive the first rotating shaft to rotate, and the mixing rod is used to achieve alignment. During the mixing process of the raw materials in the mixing box, the control box will follow the drive shaft to rotate slightly to adjust the working position of the first rotating shaft, thereby improving the mixing effect; the drive assembly drives the drive shaft to rotate at high speed, speed-sensitive The transmission component works, and the control box rotates following the drive shaft. The stirring plate cooperates with the stirring rod to stir the raw materials in each area. The raw materials that have not passed through the filter holes will be close to the stirring plate and cooperate with the rolling roller to adhere to the wall. In a moving manner, the raw materials can be further crushed and pulverized, thereby improving the mixing effect of the raw materials and thereby improving the production quality of silicon carbide ceramics. Compared with the prior art, the present invention is provided with a stirring component, which controls the control box and The coordinated setting of the stirring rod, the first rotating shaft, the stirring plate and the rolling roller prevents the existing device from having a simple stirring structure and making it difficult to mix the raw materials evenly, and the raw materials that are not fully crushed will also affect the mixing effect, thereby affecting the silicone chemical. Ceramic production quality issues.

Description of drawings

Figure 1 is a schematic front structural view of an embodiment of the present invention.

Figure 2 is a schematic structural diagram of the stirring assembly in the embodiment of the present invention.

Figure 3 is a schematic diagram of the structure of Figure 2 viewed from below.

FIG. 4 is a schematic top cross-sectional structural diagram of the control box in the embodiment of the present invention.

Figure 5 is a partial cross-sectional structural schematic diagram of the control box in the embodiment of the present invention.

Figure 6 is a schematic structural diagram of the drive shaft and drive block in the embodiment of the present invention.

Figure 7 is a schematic cross-sectional structural diagram of a rolling roller in an embodiment of the present invention.

In the drawing: 1-mixing box, 2-stirring plate, 3-feed hole, 4-first rotating shaft, 5-stirring rod, 6-driving wheel, 7-control box, 8-driving motor, 9-gear set , 10-drive shaft, 11-feed pipe, 12-roller, 13-discharge pipe, 14-filter hole, 15-second rotating shaft, 16-toothed transmission belt, 17-transmission wheel, 18-driving block , 19-baffle, 20-transmission part, 21-auxiliary support frame, 22-drive plate, 23-guide wheel, 24-elastic member, 25-vertical plate, 26-guide plate, 27-drive groove, 28- Driving hole, 29-eccentric wheel, 30-support shaft.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not intended to limit the present invention.

The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

Referring to Figures 1 to 7, an embodiment of the present invention provides a raw material mixing device for the production of silicon carbide ceramics. The raw material mixing device for the production of silicon carbide ceramics includes:

Mixing box 1, the mixing box 1 is provided with a feed pipe 11 and a discharge pipe 13 respectively;

Stirring component, the stirring component is installed in the mixing box 1; wherein the stirring component includes a control box 7, a stirring rod 5, a first rotating shaft 4, a stirring plate 2 and a rolling roller 12. The control box 7 is driven by a driving shaft. 10 is installed on the mixing box 1, and the mixing box 1 is also provided with a driving assembly for driving the driving shaft 10 to rotate. The driving shaft 10 and the control box 7 rotate in cooperation, and the stirring rod 5 passes through the first rotating shaft 4 It is installed on the control box 7, and the first rotating shaft 4 and the driving shaft 10 are connected through a linkage assembly. The stirring plate 2 is installed on the control box 7, and there are multiple sets of filter holes 14 on the stirring plate 2. The rolling roller 12 is installed on the control box 7 through the second rotating shaft 15 , and the driving shaft 10 is also provided with a speed-sensitive transmission component for driving the control box 7 to rotate.

In the embodiment of the present invention, raw materials are first added into the mixing box 1 through the feed pipe 11, and the driving assembly drives the driving shaft 10 to rotate at a low speed. The speed-sensitive transmission assembly does not work, and the control box 7 does not follow the driving shaft. 10 rotates, the drive shaft 10 can drive the first rotating shaft 4 to rotate by cooperating with the linkage component, and the mixing rod 5 is used to stir the raw materials in the mixing box 1. At this time, the control box 7 will follow the drive shaft 10 to a small extent. Rotate, thereby adjusting the working position of the first rotating shaft 4, thereby improving the mixing effect; the driving assembly drives the driving shaft 10 to rotate at high speed, the speed-sensitive transmission assembly works, the control box 7 follows the driving shaft 10 to rotate, and the stirring plate 2 By cooperating with the stirring rod 5, the mixing process of the raw materials in each area is achieved. The raw materials that have not passed through the filter holes 14 will be close to the stirring plate 2, and the rolling roller 12 moves against the wall to achieve further mixing of the raw materials. The crushing and crushing process can improve the mixing effect of the raw materials, thereby improving the production quality of silicon carbide ceramics; wherein the discharge pipe 13 and the feed pipe 11 are both provided with sealing caps or valves, and the mixing box 1 is also provided with There are foot pads; compared with the prior art, the embodiment of the present invention is provided with a stirring assembly. Through the cooperative arrangement of the control box 7, stirring rod 5, first rotating shaft 4, stirring plate 2 and rolling roller 12 in the stirring assembly, it is possible to avoid The existing device has a simple stirring structure, making it difficult to mix the raw materials evenly, and raw materials that are not fully crushed will also affect the mixing effect, thereby affecting the production quality of silicon ceramics.

In one embodiment of the present invention, please refer to Figures 4-6, the speed-sensitive transmission assembly includes:

At least one set of baffles 19, the baffles 19 are installed on the control box 7;

Driving block 18, the driving block 18 is installed on the driving shaft 10, and the driving block 18 is also provided with driving grooves 27 and driving holes 28 respectively;

At least one set of driving plates 22 is slidably installed in the driving hole 28, and a guide wheel 23 is installed on the end of the driving plate 22 away from the driving block 18;

At least one set of auxiliary support brackets 21, one end of which is mounted on the drive plate 22, and the other end of which is in sliding fit with the drive groove 27; and

At least one set of elastic components used for connection between the auxiliary support frames 21;

The elastic components include:

At least one set of vertical boards 25, the vertical boards 25 are installed on the auxiliary support frame 21; and

Elastic member 24 is used for the connection between the vertical plates 25;

The elastic member 24 is an elastic cord.

In this embodiment, the driving slot 27 is provided with two groups, the driving plate 22 is symmetrically arranged on the driving block 18 in two groups, and the auxiliary support frame 21 is symmetrically arranged on each group of the driving plate 22. Two groups, the elastic member 24 can also be a spring; the elastic member 24 exerts a pulling force on the auxiliary support frame 21 so that when the drive shaft 10 rotates at a low speed, the drive plate 22 will not move toward the baffle 19 side. When the drive shaft 10 rotates at high speed, under the action of centrifugal force, the auxiliary support frame 21 will exert a pulling force on the elastic member 24. At this time, the drive plate 22 moves to the side of the baffle 19. When the drive plate 22 contacts the inner wall of the control box 7, and Cooperating with the way the drive shaft 10 drives the drive plate 22 to rotate, the control box 7 can be driven to follow the drive shaft 10 to rotate. Through the settings of the drive hole 28 and the drive groove 27, it is convenient to drive the auxiliary support frame 21 and the drive plate 22 to follow the drive block 18. The arrangement of the guide wheel 23 facilitates the driving plate 22 to rotate against the wall in the control box 7 , and at the same time avoids jamming between the driving plate 22 and the baffle 19 .

In one embodiment of the present invention, please refer to Figures 1-4 and 7. The rolling rollers 12 are provided with multiple groups, and the second rotating shaft 15 is also equipped with a driving wheel connected to the inner wall of the mixing box 1. 6;

The rolling roller 12 is also provided with an impact member. The impact member includes an eccentric wheel 29 and a support shaft 30. The support shaft 30 is installed in the rolling roller 12. The eccentric wheel 29 is provided on the support shaft 30. There are multiple groups.

In this embodiment, the second rotating shaft 15 is in contact with the inner wall of the mixing box 1 and cooperates with the rotation of the mixing box 1 to realize that the rolling roller 12 rotates with the driving shaft 10 as the axis and at the same time, the rolling roller 12 rotates with the second rotating shaft 10 . The rotating shaft 15 rotates on its axis. Through the rolling effect between the rolling roller 12 and the inner wall of the mixing box 1, the uncrushed raw materials can be further crushed, thereby improving the mixing quality of the raw materials. The eccentric wheel 29 passes through the rolling roller. The synchronous rotation of 12 can produce intermittent impact on the inner wall of the mixing box 1, thereby improving the crushing effect.

In one embodiment of the present invention, please refer to Figures 1-3, the first rotating shaft 4 is provided with multiple groups on the control box 7, and the stirring rod 5 is provided with multiple groups on the first rotating shaft 4. Group;

The linkage components include:

At least one set of transmission wheels 17 is installed on the first rotating shaft 4, and multiple sets of transmission wheels 17 are connected by toothed transmission belts 16; and

The transmission member 20 is used for connection between the drive shaft 10 and one of the first rotating shafts 4 .

In this embodiment, the driving shaft 10 can drive one group of first rotating shafts 4 to rotate by cooperating with the transmission member 20 , and the transmission wheel 17 can realize multiple sets of first rotating shafts by cooperating with the toothed transmission belt 16 . 4, thereby realizing the synchronous rotation of multiple sets of first rotating shafts 4; wherein the transmission member 20 can adopt a combined structure of a pulley and a transmission belt.

In one embodiment of the present invention, please refer to Figures 1-3. The stirring plate 2 has a herringbone structure, and multiple groups of guide plates 26 are provided on the stirring plate 2. The guide plates 26 are also provided with openings. There are 14 filter holes;

The deflector 26 has a triangular structure, and the long side of the triangular structure is inclined toward the side of the rolling roller 12;

A feed hole 3 is also provided on the end of the stirring plate 2 close to the inner wall of the mixing box 1 .

In this embodiment, through the arrangement of the stirring plate 2, zoned stirring of the raw materials in the mixing box 1 can be achieved. Through the through hole 3 opened on the stirring plate 2 and in conjunction with the control box 7, the stirring plate 2 is driven to rotate. It is convenient to realize the relaxation of the raw materials between the various areas, thereby improving the mixing quality of the raw materials. Through the setting of the guide plate 26, it is convenient to guide the raw materials that cannot pass through the filter holes 14 with the stirring plate 2 to the side of the rolling roller 12 (which cannot pass through the filter holes). The raw materials 14 are easy to pile up close to the stirring plate 2. When the stirring plate 2 drives the guide plate 26 to rotate at the same time, under the action of centrifugal force, the accumulated raw materials can pass through the slope of the guide plate 26 to the side of the rolling roller 12. move) to facilitate rolling.

In one embodiment of the present invention, please refer to Figure 1. The driving assembly includes a driving motor 8 and a gear set 9. The driving motor 8 is installed on the mixing box 1. The gear set 9 is used for connecting the driving motor 8 and the mixing box 1. The connection between the drive shafts 10; the drive motor 8 can be a servo motor or a stepper motor.

In this embodiment, the driving motor 8 can drive the driving shaft 10 to rotate by cooperating with the gear set 9 , wherein the gear set 9 can be two sets of mutually meshing bevel gears.

To sum up, the working principle of the present invention is: first, raw materials are added into the mixing box 1 through the feed pipe 11, and the driving assembly drives the driving shaft 10 to rotate at a low speed. The speed-sensitive transmission assembly does not work, and the control box 7 Instead of following the rotation of the drive shaft 10, the drive shaft 10 can drive the first rotating shaft 4 to rotate by cooperating with the linkage assembly, and the stirring rod 5 is used to stir the raw materials in the mixing box 1. At this time, the control box 7 will follow the drive The shaft 10 rotates slightly to adjust the working position of the first rotating shaft 4, thereby improving the mixing effect; the driving assembly drives the driving shaft 10 to rotate at high speed, the speed-sensitive transmission assembly works, and the control box 7 follows the rotation of the driving shaft 10 , the stirring plate 2 cooperates with the stirring rod 5 to stir the raw materials in each area. The raw materials that have not passed through the filter holes 14 will be close to the stirring plate 2, and cooperate with the rolling roller 12 to move against the wall. The raw materials are further crushed and pulverized to improve the mixing effect of the raw materials, thereby improving the production quality of silicon carbide ceramics; the elastic member 24 exerts a tensile force on the auxiliary support frame 21 to cause the drive shaft 10 to rotate at a low speed. The plate 22 will not move to the side of the baffle 19. When the drive shaft 10 rotates at high speed, under the action of centrifugal force, the auxiliary support frame 21 will exert a pulling force on the elastic member 24. At this time, the drive plate 22 will move to the side of the baffle 19. When the drive plate 22 contacts the inner wall of the control box 7 and cooperates with the drive shaft 10 to drive the drive plate 22 to rotate, the control box 7 can be driven to follow the drive shaft 10 to rotate. Through the settings of the drive hole 28 and the drive slot 27, it is convenient to drive the auxiliary support. The frame 21 and the driving plate 22 rotate following the driving block 18. The setting of the guide wheel 23 facilitates the driving plate 22 to rotate against the wall in the control box 7, and at the same time avoids jamming between the driving plate 22 and the baffle 19.

The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.

Claims (6)

1. A raw material mixing device for the production of silicon carbide ceramics, including a mixing box. The mixing box is provided with a feed pipe and a discharge pipe respectively. It is characterized in that it also includes: Stirring component, the stirring component is installed in the mixing box; wherein the stirring component includes a control box, a stirring rod, a first rotating shaft, a stirring plate and a rolling roller, the control box is installed on the mixing box through a drive shaft, and The mixing box is also provided with a driving assembly for driving the driving shaft to rotate. The driving shaft and the control box are in rotational cooperation. The mixing rod is installed on the control box through the first rotating shaft, and the first rotating shaft and the driving shaft are connected through linkage components, the stirring plate is installed on the control box, and multiple sets of filter holes are provided on the stirring plate, the rolling roller is installed on the control box through the second rotating shaft, and the driving shaft is also provided with There is a speed-sensitive transmission component used to drive the control box to rotate; The speed-sensitive transmission components include: At least one set of baffles, the baffles are installed on the control box; Driving block, the driving block is installed on the driving shaft, and the driving block is also provided with driving grooves and driving holes respectively; At least one set of drive plates, the drive plates are slidably installed in the drive holes, and a guide wheel is installed on the end of the drive plate away from the drive block; At least one set of auxiliary support frames, one end of the auxiliary support frame is installed on the drive plate, and the other end of the auxiliary support frame is slidingly matched with the drive groove; and At least one set of elastic components used for connection between the auxiliary support frames; The elastic components include: At least one set of vertical panels mounted on an auxiliary support frame; and Elastic parts, used for the connection between the vertical boards; The elastic member is an elastic rope; the elastic member exerts a pulling force on the auxiliary support frame so that when the drive shaft rotates at low speed, the drive plate will not move to the side of the baffle. When the drive shaft rotates at high speed, the centrifugal force will When the drive plate contacts the inner wall of the control box and cooperates with the drive shaft to drive the drive plate to rotate, the control box can be driven to follow the drive shaft. Rotation, through the setting of the driving hole and the driving groove, it is convenient to drive the auxiliary support frame and the driving plate to follow the driving block. Through the setting of the guide wheel, it is convenient for the driving plate to rotate against the wall in the control box, and at the same time, it can avoid the interference between the driving plate and the baffle. A stuck phenomenon occurs. 2. The raw material mixing device for the production of silicon carbide ceramics according to claim 1, characterized in that the rolling rollers are provided with multiple groups, and a driving wheel connected to the inner wall of the mixing box is also installed on the second rotating shaft; An impact piece is also provided in the rolling roller. The impact piece includes an eccentric wheel and a support shaft. The support shaft is installed in the rolling roller. Multiple sets of eccentric wheels are provided on the supporting shaft. 3. The raw material mixing device for silicon carbide ceramic production according to claim 1, characterized in that, the first rotating shaft is provided with multiple groups on the control box, and the stirring rod is provided with a plurality of groups on the first rotating shaft. a; The linkage components include: At least one set of transmission wheels, the transmission wheels are installed on the first rotating shaft, and the plurality of sets of transmission wheels are connected by toothed transmission belts; and A transmission member used for connection between the drive shaft and one of the first rotating shafts. 4. The raw material mixing device for the production of silicon carbide ceramics according to claim 1, characterized in that the stirring plate has a herringbone structure, and a plurality of groups of guide plates are also provided on the stirring plate, and the guide plates are also There are filter holes. 5. The raw material mixing device for the production of silicon carbide ceramics according to claim 4, characterized in that the guide plate has a triangular structure, and the long side of the triangular structure is inclined toward the side of the rolling roller; A feed hole is also provided at the end of the stirring plate close to the inner wall of the mixing box. 6. The raw material mixing device for silicon carbide ceramic production according to claim 1, characterized in that the drive assembly includes a drive motor and a gear set, the drive motor is installed on the mixing box, and the gear set is used for the drive The connection between the motor and the drive shaft.