Silicon nitride raw material drying device

Abstract

The utility model discloses a silicon nitride raw material drying device which comprises a drying box, a heating ring is arranged on the side wall of the drying box, a cover plate is arranged on one side of the drying box, a conveying pipe is fixedly connected to one side of the cover plate, and a rotating shaft is rotationally connected into the conveying pipe in a penetrating mode. A driving mechanism used for driving the rotating shaft is arranged on one side of the conveying pipe, a feeding mechanism used for conveying raw materials is arranged on the side wall of the conveying pipe, a holder is fixedly connected to the inner wall of the drying box, a rotating tank is rotationally connected into the holder, and a stirring mechanism used for stirring the materials is arranged in the rotating tank. And the inner wall of the drying box is fixedly connected with an air inlet cover. The heating ring is arranged on the side wall of the drying box, uniform heating of raw materials in the drying box can be guaranteed in a tightly-attached circumferential heating mode, uniform heating of the raw materials can be guaranteed in a stirring mode of the stirring rod and the rotating tank, and then the drying quality and efficiency of the raw materials are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to industrial raw material drying technical field especially, it relates to silicon nitride raw material drying device. BACKGROUND

[0002] Silicon nitride is an inorganic substance, is an important structural ceramic material, hardness is big, has lubricity personally, and is wear -resisting, is atomic crystal, high temperature is oxidation -resistant. Moreover it can also resist cold and hot impact, heat to 1000 DEG C above in air, sharp cooling again sharp heating, also will not break, just because silicon nitride ceramic has such excellent characteristics, people often utilize it to manufacture bearing, gas turbine blade, mechanical seal ring, permanent mold etc. Mechanical component.

[0003] In the production process of silicon nitride related product, the drying degree of raw material has the vital influence to the quality of final product, the existing drying device has many deficiencies: on the one hand, the drying efficiency of traditional drying device is low, the common hot air drying mode, heat transfer speed is slow, and uneven drying condition easily appears, leads to part silicon nitride raw material excessive drying, and part still does not reach the required drying degree, affects the stability of product quality, on the other hand, the raw material is in the drying process, since it is mostly heated to discharge water vapor, at this time, in the process of water vapor discharge, there will be the problem of low discharge efficiency. UTILITY MODEL CONTENTS

[0004] The utility model discloses a silicon nitride raw material drying device to solve the technical problems in the prior art.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme:

[0006] Silicon nitride raw material drying device, including drying box, the side wall of drying box is equipped with heating ring, one side of drying box is equipped with the apron, one side of apron is fixedly connected with the conveying pipe, the rotatable shaft is penetrated and is connected in the conveying pipe, one side of conveying pipe is equipped with the drive mechanism for driving rotatable shaft, the side wall of conveying pipe is equipped with the feeding mechanism for raw material conveying, the inner wall of drying box is fixedly connected with the holder, the rotatable jar is rotatably connected in the holder, the stirring mechanism for material stirring is equipped in rotatable jar, the inner wall of drying box is fixedly connected with the air inlet cover, one side of air inlet cover is equipped with the exhaust pipe.

[0007] Preferably, the drive mechanism includes a motor fixedly connected to one end of the conveying pipe, the output shaft of the motor is fixedly connected to the rotating shaft, the inner wall of the conveying pipe is provided with a rotating frame, and the rotating shaft is rotatably connected to the rotating frame.

[0008] Preferably, the feeding mechanism comprises a feeding box fixedly connected to the side wall of the conveying pipe, one side of the feeding box is fixedly communicated with a communicating pipe, and the communicating pipe communicates the conveying pipe.

[0009] Preferably, one side of the drying box is fixedly connected with a filtering box, one side of the filtering box is fixedly communicated with a blowing pipe, the blowing pipe communicates the feeding box, and the exhaust pipe communicates the filtering box.

[0010] Preferably, the stirring mechanism comprises a plurality of circumferentially arranged stirring rods fixedly connected in the air inlet cover, and the stirring rods extend into the rotating tank.

[0011] Preferably, the side wall of the heating ring is fixedly connected with a fan, the air outlet of the fan is fixedly communicated with a connecting pipe, and the connecting pipe communicates the rotating tank through the holder.

[0012] Compared with the prior art, the nitrogen silicide raw material drying device has the following beneficial effects:

[0013] 1. The nitrogen silicide raw material drying device comprises a heating ring, a cover plate, a rotating tank, a stirring rod and a rotating shaft, the heating ring is arranged on the side wall of the drying box, the raw material can be uniformly heated in the drying box through close circumferential heating, the raw material can be uniformly heated through the stirring rod and the rotating tank, and thus the drying quality and efficiency of the raw material are ensured.

[0014] 2. The nitrogen silicide raw material drying device comprises a fan, a connecting pipe, a filtering box, an exhaust pipe and an air inlet cover, air is sent through the air inlet cover and the fan, the circulation of water vapor is driven through air conveying, the circulation efficiency and rate of water vapor are ensured while the raw material is discharged with the air circulation, and thus the water vapor discharge efficiency is effectively realized. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 FIG. 1 is a front view of a nitrogen silicide raw material drying device according to the present application;

[0016] Figure 2 FIG. 2 is a top view of the nitrogen silicide raw material drying device according to the present application;

[0017] Figure 3 FIG. 3 is a structure diagram of an air inlet cover of the nitrogen silicide raw material drying device according to the present application;

[0018] Figure 4 FIG. 4 is a structure diagram of a rotating holder of the nitrogen silicide raw material drying device according to the present application.

[0019] In the figure: 1 drying box, 2 heating ring, 3 cover plate, 4 conveying pipe, 5 motor, 6 rotating shaft, 7 air inlet cover, 8 exhaust pipe, 9 filter box, 10 blowing pipe, 11 feeding box, 12 communication pipe, 13 fan, 14 connecting pipe, 15 stirring rod, 16 rotating tank, 17 retainer, 18 rotating frame. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned purpose, features and advantages of the utility model more apparent, obvious, the specific implementation of the utility model is explained in detail below combined with the drawings. In the following description, a lot of specific details are set forth in order to fully understand the utility model. However, the utility model can be implemented in many other ways different from the description herein, and those skilled in the art can make similar improvements without departing from the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below.

[0021] Referring to Figures 1-4 The silicon nitride raw material drying device, including drying box 1, one side of drying box 1 is fixedly connected with filter box 9, one side of filter box 9 is fixedly communicated with blowing pipe 10, blowing pipe 10 is communicated with feeding box 11, and exhaust pipe 8 is communicated with filter box 9;

[0022] The side wall of drying box 1 is provided with heating ring 2, one side of drying box 1 is provided with cover plate 3, one side of cover plate 3 is fixedly connected with conveying pipe 4, and rotating shaft 6 is penetratingly and rotationally connected in conveying pipe 4, one side of conveying pipe 4 is provided with a driving mechanism for driving rotating shaft 6, the driving mechanism includes motor 5 fixedly connected at one end of conveying pipe 4, the output shaft of motor 5 is fixedly connected with rotating shaft 6, the inner wall of conveying pipe 4 is provided with rotating frame 18, and rotating shaft 6 is penetratingly and rotationally connected with rotating frame 18;

[0023] The side wall of conveying pipe 4 is provided with a feeding mechanism for raw material conveying, and the feeding mechanism includes feeding box 11 fixedly connected with the side wall of conveying pipe 4, one side of feeding box 11 is fixedly communicated with communication pipe 12, and communication pipe 12 is communicated with conveying pipe 4.

[0024] The inner wall of drying box 1 is fixedly connected with retainer 17, retainer 17 is rotationally connected with rotating tank 16 in the inner wall, the inner wall of drying box 1 is fixedly connected with air inlet cover 7, air inlet cover 7 is provided with exhaust pipe 8 on one side, the side wall of heating ring 2 is fixedly connected with fan 13, the air outlet of fan 13 is fixedly communicated with connecting pipe 14, and connecting pipe 14 is communicated with rotating tank 16 through retainer 17.

[0025] When the utility model is used, for example, Figures 1-4The raw material is first added through the feeding box 11, then the feeding box 11 is closed, then the fan 13 is started, the fan 13 sends air through the connecting pipe 14, and the air is discharged through the exhaust pipe 8 on the air inlet cover 7. At this time, after the filtering treatment of the filter box 9, the air blows the raw material in the feeding box 11 through the blowing pipe 10, transports it to the conveying pipe 4 through the communicating pipe 12, and then drives the rotation of the rotating shaft 6 through the motor 5, and drives the rotation of the rotating tank 16 through the rotating shaft 6. The raw material is stirred under the driving of the plurality of stirring rods 15. At this time, the raw material in the rotating tank 16 is uniformly heated in the circumferential direction through the heating ring 2. The water vapor generated in the heating process is blocked by the air inlet cover 7 through the circulation of the air and the filtering treatment of the filter box 9, and then discharged through the exhaust pipe 8. The control valve is arranged between the exhaust pipe 8 and the blowing pipe 10, which can control the circulation of the air through the exhaust pipe 8 and the blowing pipe 10. Part of the water vapor is filtered by the filter box 9, and the other part of the water vapor is discharged to the outside through the exhaust pipe 8 after the feeding is completed. In the initial state, the temperature is low during feeding, so the water vapor generated in the heating process is small and does not affect the feeding process of the raw material. At the same time, the air supply process can assist in the stirring treatment of the raw material.

[0026] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A silicon nitride raw material drying apparatus, comprising a drying chamber (1), characterized in that, The drying chamber (1) has a heating ring (2) on its side wall, a cover plate (3) on one side of the drying chamber (1), a conveying pipe (4) fixedly connected to one side of the cover plate (3), a rotating shaft (6) rotatably connected through the conveying pipe (4), a driving mechanism for driving the rotating shaft (6) on one side of the conveying pipe (4), a feeding mechanism for conveying raw materials on the side wall of the conveying pipe (4), a retainer (17) fixedly connected to the inner wall of the drying chamber (1), a rotating tank (16) rotatably connected inside the retainer (17), a stirring mechanism for stirring materials inside the rotating tank (16), an air inlet hood (7) fixedly connected to the inner wall of the drying chamber (1), and an exhaust pipe (8) on one side of the air inlet hood (7).

2. The silicon nitride raw material drying apparatus according to claim 1, characterized in that, The driving mechanism includes a motor (5) fixedly connected to one end of the conveying pipe (4), the output shaft of the motor (5) is fixedly connected to the rotating shaft (6), and the inner wall of the conveying pipe (4) is provided with a rotating frame (18), and the rotating shaft (6) passes through and is rotatably connected to the rotating frame (18).

3. The silicon nitride raw material drying apparatus according to claim 2, characterized in that, The feeding mechanism includes a feeding box (11) fixedly connected to the side wall of the conveying pipe (4), and a connecting pipe (12) is fixedly connected to one side of the feeding box (11), which is connected to the conveying pipe (4).

4. The silicon nitride raw material drying apparatus according to claim 3, characterized in that, A filter box (9) is fixedly connected to one side of the drying box (1), and a blow pipe (10) is fixedly connected to one side of the filter box (9). The blow pipe (10) is connected to the feeding box (11), and the exhaust pipe (8) is connected to the filter box (9).

5. The silicon nitride raw material drying apparatus according to claim 4, characterized in that, The stirring mechanism includes a plurality of circumferentially arranged stirring rods (15) fixedly connected inside the air intake hood (7), and the stirring rods (15) extend into the rotating tank (16).

6. The silicon nitride raw material drying apparatus according to claim 5, characterized in that, A fan (13) is fixedly connected to the side wall of the heating ring (2), and a connecting pipe (14) is fixedly connected to the air outlet of the fan (13). The connecting pipe (14) is connected to the rotating tank (16) through a retainer (17).

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