CN221515209U - Silicon carbide powder grading plant - Google Patents

Abstract

The utility model discloses a silicon carbide powder grading device, which belongs to the technical field of silicon carbide powder processing and comprises a first grading box, wherein a feeding pipe is arranged at the top end of the first grading box, one end of the feeding pipe penetrates through the first grading box and is fixedly connected with a connecting column, the connecting column is positioned in an inner cavity of the first grading box, the bottom end of the connecting column is fixedly connected with a connecting block, a first discharging pipe is arranged at the bottom of the first grading box, the other end of the first discharging pipe is communicated with a first collecting box, an air supply assembly is arranged at one side of the first grading box, an air outlet pipe is arranged at the other side of the first grading box, a second grading box is communicated with the other end of the air outlet pipe, a second discharging pipe is arranged at the bottom of the second grading box, the other end of the second discharging pipe is communicated with the second collecting box, a material guide assembly is arranged in the inner cavity of the second grading box, the working quality of the grading device is improved, the processing efficiency is improved, and the grading efficiency of the grading device is increased.

Description

Silicon carbide powder grading plant

Technical Field

The utility model relates to the technical field of silicon carbide powder processing, in particular to a silicon carbide powder grading device.

Background

The silicon carbide powder is a micron-sized silicon carbide powder, is mainly used in the abrasive industry, is strictly classified in grade, does not allow large particles to appear, is mainly black silicon carbide powder and green silicon carbide powder at present, is an important material for manufacturing products such as solar silicon wafers, semiconductor silicon wafers, engineering ceramics, heating elements and advanced refractory materials, has higher and higher quality requirements along with the strong development of new material science, and grades coarse and miniature silicon carbide powder particles in the production of high-quality silicon carbide powder, and generally adopts a silicon carbide powder grading device.

At present, the traditional grading plant is used for grading coarse and miniature silicon carbide particles in silicon carbide powder through vibration, so that the grading treatment is inconvenient to quickly perform, the grading time is slow, dust is easy to generate in the grading process, and the miniature silicon carbide particles are easy to scatter along with air, so that the physical health of workers is influenced, and the working efficiency of the grading plant is influenced.

According to publication No.: the utility model provides a high-efficiency dust classifying device, which comprises a barrel, wherein an impeller arranged on an impeller shaft is arranged in the barrel, an upper connecting plate and a lower connecting plate which are fixedly connected with the barrel are arranged in the barrel, the upper end and the lower end of the impeller shaft are respectively and correspondingly arranged on the upper connecting plate and the lower connecting plate through an upper bearing and a lower bearing, the top end of the impeller shaft is connected with the lower shaft end of a transmission shaft provided with a transmission upper bearing and a transmission lower bearing through a coupling, a high-pressure air pipe is arranged on the lower connecting plate, and one end of the high-pressure air pipe is an air blowing port which is aligned with the lower bearing. The utility model can solve the problem that the service life is influenced because dust enters the lower bearing, and the service life is longer.

According to the classifying device, when the silicon carbide powder is classified, particles inside the silicon carbide powder can be simply classified by the heavy classifying device, so that coarse and fine particles of the classified silicon carbide powder still are mixed, the working efficiency of the classifying device is reduced, meanwhile, the classified silicon carbide powder is inconvenient for workers to collect, and the working strength of the workers is increased, and therefore, the silicon carbide powder classifying device is required.

Disclosure of utility model

The utility model aims to provide a silicon carbide powder grading device, which is characterized in that air is sent into a first grading box through an air supply assembly, medium and micro particles of silicon carbide powder are sent into an inner cavity of a second grading box through an air outlet pipe through air flow for secondary grading, and then the primarily graded and secondarily graded silicon carbide powder is collected through a first collecting box, a second collecting box and a third collecting box, so that the grading efficiency of the grading device is improved, the working quality of the grading device is improved, the working strength of workers is reduced, and the processing efficiency of the silicon carbide powder is improved, so that the problems in the background art are solved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a carborundum grading plant, includes first hierarchical case, the top of first hierarchical case is provided with the inlet pipe, the one end of inlet pipe runs through first hierarchical case and fixedly connected with spliced pole, the spliced pole is located the inner chamber of first hierarchical case, the bottom fixedly connected with connecting block of spliced pole, the bottom of first hierarchical case is provided with first discharging pipe, the other end intercommunication of first discharging pipe has first collecting box, air supply subassembly is installed to one side of first hierarchical case, the opposite side of first hierarchical case is provided with out the tuber pipe, the other end intercommunication of going out the tuber pipe has the second hierarchical case, the bottom of second hierarchical case is provided with the second discharging pipe, the other end intercommunication of second discharging pipe has the second collecting box, the guide subassembly is installed to the inner chamber of second hierarchical case.

Preferably, the connecting columns are provided with five groups, the five groups of connecting columns are arranged around the lower surface of the feeding pipe around the circle center, and the outer surfaces of the five groups of connecting columns are sleeved with isolating sleeves.

Preferably, the air supply assembly comprises an air feeder, the air feeder is bolted to the outer side wall of the first classification box through a fastening bolt, an air inlet of the air feeder is communicated with an air inlet pipe, an air supply pipe is communicated with an air supply opening of the air feeder, the other end of the air supply pipe penetrates through the first classification box and is fixedly connected with a guide cover, and the guide cover is located in an inner cavity of the first classification box.

Preferably, the inner cavity of the second classifying box is provided with a filter plate, the surface of the filter plate is provided with a third discharging pipe, and one end of the third discharging pipe penetrates through the second classifying box and is communicated with a third collecting box.

Preferably, the material guiding assembly comprises a stepping motor, the stepping motor is fixedly connected to the upper surface of the second classifying box through a mounting plate, an output shaft of the stepping motor penetrates through the second classifying box and is fixedly connected with a rotating rod, the rotating rod is located in an inner cavity of the second classifying box, the other end of the rotating rod is rotationally connected with the upper surface of the filter plate, a material guiding plate is arranged at the bottom end of the rotating rod around the circle center, and the material guiding plate is in an arc-shaped arrangement.

Preferably, the third discharging pipe is L-shaped, the surface of the third discharging pipe, which is positioned in the inner cavity of the second classifying box, is provided with a filtering hole, and the diameter of the filtering hole on the third discharging pipe is equal to that of the filtering hole on the filtering plate.

Preferably, transparent acrylic plates are embedded on one sides of the first classifying box, the second classifying box and the third classifying box, and collecting boxes are arranged in inner cavities of the first classifying box, the second classifying box and the third classifying box.

Compared with the prior art, the utility model has the beneficial effects that:

1. The utility model provides a silicon carbide powder grading device, which can be used for primarily grading silicon carbide powder particles in the inner cavity of a first grading box through the arrangement of an air supply assembly, wherein medium and micro silicon carbide powder particles are sent to a filter plate in the inner cavity of a second grading box through an air outlet pipe, the silicon carbide powder is driven to move through the cooperation of a material guide assembly, and the medium and micro silicon carbide powder is secondarily separated through a filter hole in the filter plate during the movement, so that the working quality of the grading device is improved, the processing efficiency of the silicon carbide powder is improved, and the grading efficiency of the grading device is improved.

2. The utility model provides a silicon carbide powder grading device, which is convenient for workers to collect graded silicon carbide powder through the arrangement of a first grading box, a second grading box and a third grading box, and can be convenient for the workers to observe the powder collection condition of the silicon carbide powder through the arrangement of a transparent acrylic plate, thereby providing convenience for the collection work of the silicon carbide powder of the workers and reducing the working intensity of the workers.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic top view of the present utility model;

FIG. 3 is a schematic side view of the present utility model;

Fig. 4 is a schematic structural view of a partial cross-sectional structure of the present utility model.

In the figure: 1. a first classification box; 2. a feed pipe; 3. a connecting column; 4. a connecting block; 5. a first discharge pipe; 6. a first collection box; 7. an air supply assembly; 71. a blower; 72. an air inlet pipe; 73. an air supply pipe; 74. a guide cover; 8. an air outlet pipe; 9. a second classification box; 10. a second discharge pipe; 11. a second collection box; 12. a material guiding component; 121. a stepping motor; 122. a rotating rod; 123. a material guide plate; 13. a spacer sleeve; 14. a filter plate; 15. a third discharge pipe; 16. a third collection box; 17. a transparent acrylic plate; 18. and a collection box.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the utility model provides a silicon carbide powder classifying device, which comprises a first classifying box 1, wherein a feed pipe 2 is arranged at the top end of the first classifying box 1, one end of the feed pipe 2 penetrates through the first classifying box 1 and is fixedly connected with a connecting column 3, the connecting column 3 is positioned in the inner cavity of the first classifying box 1, the bottom end of the connecting column 3 is fixedly connected with a connecting block 4, a first discharging pipe 5 is arranged at the bottom of the first classifying box 1, the other end of the first discharging pipe 5 is communicated with a first collecting box 6, an air supply assembly 7 is arranged at one side of the first classifying box 1, an air outlet pipe 8 is arranged at the other side of the first classifying box 1, the other end of the air outlet pipe 8 is communicated with a second classifying box 9, a second discharging pipe 10 is arranged at the bottom of the second classifying box 9, the other end of the second discharging pipe 10 is communicated with a second collecting box 11, a material guiding assembly 12 is arranged in the inner cavity of the second classifying box 9, an air supply assembly 7 is started to provide driving force to feed air into the inner cavity of the first classifying box 1, silicon carbide powder is poured in from a material feeding pipe 2, the silicon carbide powder flows into and is collided and dispersed with a connecting block 4, coarse particles fall into the bottom of the first classifying box 1 due to gravity and flow into the inner cavity of the first classifying box 1 through a first discharging pipe 5, and medium-sized and micro particles are driven by the air to flow into the second classifying box 9 through an air outlet pipe for secondary classification, so that the working quality of the classifying device is improved, the processing efficiency of the silicon carbide powder is improved, and the classifying efficiency of the classifying device is improved.

The five groups of connecting columns 3 are arranged, the five groups of connecting columns 3 are arranged around the lower surface of the feeding pipe 2 around the circle center, the outer surfaces of the five groups of connecting columns 3 are sleeved with isolating sleeves 13, and through the arrangement of the isolating sleeves 13, the silicon carbide powder is prevented from being carried out of the feeding pipe 2 by air.

The air supply assembly 7 comprises an air supply device 71, the air supply device 71 is bolted on the outer side wall of the first classifying box 1 through a fastening bolt, an air inlet of the air supply device 71 is communicated with an air inlet pipe 72, an air supply pipe 73 is communicated with an air supply port of the air supply device 71, the other end of the air supply pipe 73 penetrates through the first classifying box 1 and is fixedly connected with a guide cover 74, the guide cover 74 is located in the inner cavity of the first classifying box 1, the air supply device 71 is started to provide driving force to suck air through the air inlet pipe 72, and then the air is supplied into the inner cavity of the first classifying box 1 through the cooperation of the air supply pipe 73 and the guide cover 74.

The inner chamber of second classification case 9 is provided with filter 14, and the surface of filter 14 is provided with third discharging pipe 15, and the one end of third discharging pipe 15 runs through second classification case 9 and communicates there is third collecting box 16, carries out the secondary classification with medium-sized and miniature granule through filter 14, and medium-sized granule flows into third collecting box 16 through third discharging pipe 15 and collects.

The guide assembly 12 comprises a stepping motor 121, the stepping motor 121 is fixedly connected to the upper surface of the second grading box 9 through a mounting plate, an output shaft of the stepping motor 121 penetrates through the second grading box 9 and is fixedly connected with a rotating rod 122, the rotating rod 122 is located in an inner cavity of the second grading box 9, the other end of the rotating rod 122 is rotationally connected with the upper surface of the filter plate 14, a guide plate 123 is arranged at the bottom end of the rotating rod 122 around the circle center, the guide plate 123 is in an arc-shaped arrangement, the stepping motor 121 is started to provide driving force to drive the rotating rod to rotate, so that the guide plate 123 drives silicon carbide powder on the filter plate 14 to move to the third discharging pipe 15, and medium-sized particles and micro particles are classified through filter holes on the filter plate 14 during movement.

The third discharging pipe 15 is L-shaped, the surface of the third discharging pipe 15, which is positioned on the inner cavity of the second grading box 9, is provided with a filtering hole, the diameter of the filtering hole on the third discharging pipe 15 is equal to that of the filtering hole on the filtering plate 14, and through the arrangement of the third discharging pipe 15, the tiny particles are prevented from being mixed and discharged from the third discharging pipe 15.

Transparent acrylic plates 17 are embedded in one sides of the first classifying box 1, the second classifying box 9 and the third classifying box, collecting boxes 18 are arranged in inner cavities of the first classifying box 1, the second classifying box 9 and the third classifying box, and through the arrangement of the transparent acrylic plates 17, workers can observe the collecting conditions of silicon carbide powder from the outside conveniently, and through the arrangement of the collecting boxes 18, convenience is brought to the collecting work of the silicon carbide powder by the workers.

When the device is specifically used, the blower 71 is started to provide driving force to pump air in through the air inlet pipe, then the air is sent into the inner cavity of the first grading box 1 through the air supply pipe, then silicon carbide powder is poured into through the feeding pipe 2, the silicon carbide powder flows into and collides with the connecting block 4 to be dispersed, coarse particles fall into the bottom of the first grading box 1 due to gravity, the coarse particles flow into the inner cavity of the first grading box 1 through the first discharging pipe 5, medium-sized and micro-particles are driven by the air to flow into the filter plate 14 of the second grading box 9 through the air outlet pipe, the stepping motor 121 is started to provide driving force to drive the rotary rod 122 to rotate, the guide plate 123 on the rotary rod 122 drives the silicon carbide powder to move towards the third discharging pipe 15, when the silicon carbide powder moves, the micro-particles flow into the second collecting box 11 through the second discharging pipe 10, the medium-sized particles flow into the third collecting box 16 through the third discharging pipe 15, the micro-particles are prevented from being mixed into the third discharging pipe 15 due to the fact that the diameter of the filter hole on the third discharging pipe 15 is equal to the diameter of the filter hole on the filter plate 14, therefore the working quality of the grading device is improved, the working efficiency of the silicon carbide device is improved, the working efficiency of the grading device is improved, the working efficiency is reduced, and the working staff are convenient to work and the staff are reduced.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. Silicon carbide powder grading plant, including first classification case (1), its characterized in that: the utility model discloses a material guiding device for the high-pressure air conditioner, including first classifying box (1), inlet pipe (2) are provided with on the top of first classifying box (1), one end of inlet pipe (2) runs through first classifying box (1) and fixedly connected with spliced pole (3), spliced pole (3) are located the inner chamber of first classifying box (1), the bottom fixedly connected with connecting block (4) of spliced pole (3), the bottom of first classifying box (1) is provided with first discharging pipe (5), the other end intercommunication of first discharging pipe (5) has first collecting box (6), supply air subassembly (7) are installed to one side of first classifying box (1), the opposite side of first classifying box (1) is provided with out tuber pipe (8), the other end intercommunication of play tuber pipe (8) has second classifying box (9), the bottom of second classifying box (9) is provided with second discharging pipe (10), the other end intercommunication of second discharging pipe (10) has second collecting box (11), guide subassembly (12) are installed to the inner chamber of second classifying box (9).

2. A silicon carbide powder grading device according to claim 1, wherein: five groups of connecting columns (3) are arranged, the five groups of connecting columns (3) are arranged around the lower surface of the feeding pipe (2) around the circle center, and isolating sleeves (13) are sleeved on the outer surfaces of the five groups of connecting columns (3).

3. A silicon carbide powder grading device according to claim 1, wherein: the air supply assembly (7) comprises an air supply fan (71), the air supply fan (71) is bolted to the outer side wall of the first classification box (1) through a fastening bolt, an air inlet of the air supply fan (71) is communicated with an air inlet pipe (72), an air supply pipe (73) is communicated with an air supply opening of the air supply fan (71), the other end of the air supply pipe (73) penetrates through the first classification box (1) and is fixedly connected with a guide cover (74), and the guide cover (74) is located in an inner cavity of the first classification box (1).

4. A silicon carbide powder grading device according to claim 1, wherein: the inner cavity of the second classifying box (9) is provided with a filter plate (14), the surface of the filter plate (14) is provided with a third discharging pipe (15), and one end of the third discharging pipe (15) penetrates through the second classifying box (9) and is communicated with a third collecting box (16).

5. A silicon carbide powder grading device according to claim 1, wherein: the material guiding assembly (12) comprises a stepping motor (121), the stepping motor (121) is fixedly connected to the upper surface of the second grading box (9) through a mounting plate, an output shaft of the stepping motor (121) penetrates through the second grading box (9) and is fixedly connected with a rotating rod (122), the rotating rod (122) is located in an inner cavity of the second grading box (9), the other end of the rotating rod (122) is rotationally connected with the upper surface of the filter plate (14), a material guiding plate (123) is arranged at the bottom end of the rotating rod (122) around the center of a circle, and the material guiding plate (123) is in an arc-shaped arrangement.

6. A silicon carbide powder grading device according to claim 4, wherein: the third discharging pipe (15) is arranged in an L shape, a filtering hole is formed in the surface of the inner cavity of the second grading box (9) where the third discharging pipe (15) is located, and the diameter of the filtering hole on the third discharging pipe (15) is equal to that of the filtering hole on the filtering plate (14).

7. A silicon carbide powder grading device according to claim 1, wherein: transparent acrylic plates (17) are embedded on one sides of the first classifying box (1), the second classifying box (9) and the third classifying box, and collecting boxes (18) are arranged in inner cavities of the first classifying box (1), the second classifying box (9) and the third classifying box.