CN214862686U - Mixing device for preparing reaction sintered silicon carbide ceramic - Google Patents
Mixing device for preparing reaction sintered silicon carbide ceramic Download PDFInfo
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- CN214862686U CN214862686U CN202120418001.3U CN202120418001U CN214862686U CN 214862686 U CN214862686 U CN 214862686U CN 202120418001 U CN202120418001 U CN 202120418001U CN 214862686 U CN214862686 U CN 214862686U
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Abstract
The utility model relates to the field of ceramic production and processing, and provides a mixing device for reactive sintering silicon carbide ceramic preparation, which comprises a mixing tank and a screw conveyer, wherein the feed opening of the screw conveyer is higher than the feed opening of the mixing tank, and the mixing tank and the screw conveyer are fixedly connected through a double-end flange rubber steel wire pipe; the upper part of the mixing shaft extending into the tank body is provided with a spiral downward helical blade, and the edge of the helical blade is close to the inner wall of the tank body; a plurality of vertical blades are uniformly distributed at the lower part of the mixing shaft in the circumferential direction, the lower half parts of the vertical blades are made of rubber materials, the lower edges of the vertical blades are contacted with the inner bottom of the tank body, the outer edges of the vertical blades are close to the inner wall of the tank body, and a plurality of stirring blades are distributed on the mixing shaft between the spiral blades and the vertical blades; the side wall of the tank body is provided with a discharge hole with a butterfly valve. The device of this application simple structure is reasonable, can realize the components of a whole that can function independently connection, also is convenient for remove, and the rational utilization space, the compounding is effectual simultaneously.
Description
Technical Field
The utility model relates to a ceramic manufacture processing field, in particular to reaction sintering carborundum compounding device for ceramic preparation.
Background
The silicon carbide ceramic has the excellent characteristics of strong oxidation resistance, good wear resistance, high hardness, good thermal stability, high-temperature strength, small thermal expansion coefficient, high thermal conductivity, thermal shock resistance, chemical corrosion resistance and the like, and has great significance in numerous fields and increasingly receives attention from people.
The silicon carbide ceramic is mainly prepared by sintering SiC powder, wherein SiC basically does not exist in the nature and is mainly synthesized artificially. The most used synthesis method for industrially synthesizing silicon carbide ceramics comprises the following steps: the quartz sand and coke are heated to 2500 ℃ by electricity and react at high temperature to obtain the product. Two kinds of raw materials of quartz sand and coke need carry out even compounding before the reaction, and the compounding device commonly used at present generally is the blendor, and the blendor structure commonly used is: the mixing tank comprises a tank body and a tank cover, wherein the tank cover is arranged at the top of the tank body, a rotating motor is arranged on the tank cover, the rotating motor is connected with a stirring mechanism extending into the mixing tank in a driving manner, a feed port is arranged on the tank cover, a discharge port with a valve is arranged at the bottom of the tank body, two raw materials are added into an inner cavity of the tank body through the feed port, and after a period of stirring, the valve of the discharge port is opened to discharge the mixed materials from the discharge port; this structure has the following drawbacks: firstly, the feeding port is high, the labor intensity of feeding operation is high, and the feeding operation is inconvenient; secondly, as the material is discharged from the bottom, the tank body is supported by the supporting legs, so that the height of the tank cover is further improved, and the feeding difficulty is increased; and thirdly, continuous discharging cannot be realized, operation can be repeatedly performed only after one tank of materials is mixed, the operation is complex, a plurality of blenders are required to be arranged for mass production and processing, and the production cost is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a compounding device is used in reaction sintering carborundum ceramic preparation to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a mixing device for preparing silicon carbide ceramic through reaction sintering comprises a mixing tank, wherein the mixing tank comprises a cylindrical tank body and a tank cover, the tank cover is arranged at the top of the tank body, a rotating motor is fixedly arranged on the tank cover, an output shaft of the rotating motor is fixedly connected with a mixing shaft extending into the tank body, a feed inlet is formed in the tank cover positioned on one side of the rotating motor, the mixing device also comprises a spiral conveyor, the spiral conveyor is obliquely arranged through a support, a plurality of conical feed inlets are formed in the lower part of the spiral conveyor, a feed opening is formed in the upper part of the spiral conveyor, the feed opening of the spiral conveyor and the feed inlet in the tank cover are both provided with connecting flanges, the feed opening of the spiral conveyor is higher than the feed inlet in the tank cover, and the feed inlet are fixedly connected through a double-end flange rubber steel wire pipe;
the upper part of the mixing shaft extending into the tank body is provided with a spiral downward helical blade, and the edge of the helical blade is close to the inner wall of the tank body; a plurality of vertical blades are uniformly distributed at the lower part of the mixing shaft in the circumferential direction, the lower half parts of the vertical blades are made of rubber materials, the lower edges of the vertical blades are contacted with the inner bottom of the tank body, the outer edges of the vertical blades are close to the inner wall of the tank body, and a plurality of stirring blades are distributed on the mixing shaft between the spiral blades and the vertical blades;
the side wall of the tank body is provided with a discharge port, and the lower edge of the discharge port and the inner bottom of the tank body are positioned on the same horizontal plane; the discharge port is externally connected with a discharge pipe, a flange is arranged at the opening of the discharge pipe, and a butterfly valve is arranged on the discharge pipe.
Preferably, material mixing shaft bottom is the toper, and jar body inner bottom center is equipped with material mixing shaft bottom normal running fit's toper recess, and this structure helps fixing a position the material mixing shaft on the one hand, and on the other hand can carry out rigid radial spacing to the material mixing shaft, and when avoiding the blade atress inhomogeneous, the material mixing shaft takes place the incline.
Preferably, a plurality of through holes are formed in the blade surfaces of the auger blade in the screw conveyer, the helical blade on the mixing shaft, the stirring blade and the vertical blade. On one hand, the through hole structure can ensure that the blocking pressure can unload force at the through hole when the material is blocked, thereby effectively solving the blockage; on the other hand, when the material mixing machine is used for conveying or stirring, materials can be exchanged from the through hole, and the material mixing effect is improved.
Preferably, the bottom of the tank body and the bottom of the spiral conveyor support are both provided with self-locking casters. The structure improves the transferability of the mixing tank and the screw conveyer, and enlarges the application range of the mixing tank and the screw conveyer to the field.
Preferably, a transparent window is arranged on the side wall of the tank body corresponding to the stirring blade area. Set up the window in this position, highly just be fit for personnel on the one hand and do not carry out daily observation with the help of the instrument, this regional main compounding district of this on the other hand can observe the compounding state.
Preferably, the striker plate is arranged right above the discharge port on the inner side wall of the tank body, the upper surface of the striker plate is an inclined plane inclined downwards, and the striker plate is not interfered with the stirring blades and the vertical blades. The material baffle is mainly used for blocking the material right above the discharge hole and preventing the material from directly flowing out of the upper part of the discharge hole; the upper surface of the striker plate is an inclined plane which inclines downwards, so that the materials can be prevented from being accumulated on the striker plate.
The working principle and the beneficial effects of the application are as follows: the material is fed through the screw conveyor, so that the height of a feeding port is reduced, the labor intensity of workers for feeding is greatly reduced, and the screw conveyor can preliminarily mix the materials; the feeding port of the screw conveyor is connected with the feeding port of the tank cover through the rubber steel wire pipe flange, so that the whole detachability of the equipment is improved, the separation and the use of each part are facilitated, meanwhile, the sealing performance in feeding is ensured, and the dust pollution is avoided;
the spiral downward helical blade arranged on the upper part of the mixing shaft in the tank body can prevent materials from rapidly falling to the tank bottom on one hand, and can apply pressure downward on the other hand, thereby being beneficial to discharging of a discharging port; the vertical blades arranged at the lower part of the mixing shaft can stir the materials on one hand, and can push the materials to a discharge hole in a continuous mixing mode on the other hand, so that automatic discharge is realized; the stirring blade in the middle of the mixing shaft can adopt a blade structure with vertical and arc shapes and the like for conventional mixing, the arrangement mode can also be a conventional dislocation or circumferential uniform distribution mode, and the region is used as a main mixing region.
The external discharging pipe that takes the flange of discharge gate can realize continuous ejection of compact through the horizontal spiral feeder of pipeline butt joint on the one hand, and on the other hand also can close the butterfly valve, realizes solitary compounding and can follow the discharging pipe mouth and connect the material.
The device of this application simple structure is reasonable, can realize the components of a whole that can function independently connection, also is convenient for remove, and the rational utilization space, the compounding is effectual simultaneously.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following description of embodiments thereof, which is made for the purpose of helping those skilled in the art to understand more completely, accurately and deeply the conception and technical solution of the present invention, and to facilitate its implementation.
Example 1
Referring to fig. 1, a mixing device for preparing reaction-sintered silicon carbide ceramics comprises a mixing tank 1, wherein the mixing tank comprises a cylindrical tank body 101 and a tank cover 102, the tank cover is arranged at the top of the tank body, a rotating motor 2 is fixedly arranged on the tank cover, an output shaft of the rotating motor is fixedly connected with a mixing shaft 3 extending into the tank body, a feed port 4 is arranged on the tank cover positioned on one side of the rotating motor, the mixing device also comprises a screw conveyor 5, the screw conveyor is obliquely arranged through a support 6, a plurality of conical feed ports 7 are arranged at the lower part of the screw conveyor, a feed port 8 is arranged at the upper part of the screw conveyor, connecting flanges are arranged at the feed port of the screw conveyor and the feed port on the tank cover, the feed port of the screw conveyor is higher than the feed port on the tank cover, and the feed port are fixedly connected through a double-head flange rubber steel wire pipe 9;
the upper part of the mixing shaft extending into the tank body is provided with a spiral downward helical blade 10, and the edge of the helical blade is close to the inner wall of the tank body; a plurality of vertical blades 11 are uniformly distributed at the lower part of the mixing shaft in the circumferential direction, the lower half parts of the vertical blades are made of rubber, the lower edges of the vertical blades are contacted with the inner bottom of the tank body, the outer edges of the vertical blades are close to the inner wall of the tank body, and a plurality of stirring blades 12 are distributed on the mixing shaft between the spiral blades and the vertical blades;
the side wall of the tank body is provided with a discharge port 13, and the lower edge of the discharge port and the inner bottom of the tank body are positioned on the same horizontal plane; the discharge port is externally connected with a discharge pipe 14, a flange is arranged at the opening of the discharge pipe, and a butterfly valve 15 is arranged on the discharge pipe.
Specifically, mixing shaft bottom is the toper, and jar body inner bottom center is equipped with mixing shaft bottom normal running fit's toper recess 16, and this structure helps fixing a position mixing shaft on the one hand, and on the other hand can carry out rigid radial spacing to mixing shaft, and when avoiding the blade atress inhomogeneous, the mixing shaft takes place the incline.
Specifically, a plurality of through holes 17 are formed in the blade surfaces of the auger blade in the screw conveyer, the helical blade on the mixing shaft, the stirring blade and the vertical blade. On one hand, the through hole structure can ensure that the blocking pressure can unload force at the through hole when the material is blocked, thereby effectively solving the blockage; on the other hand, when the material mixing machine is used for conveying or stirring, materials can be exchanged from the through hole, and the material mixing effect is improved.
Specifically, the bottom of the tank body and the bottom of the spiral conveyor support are both provided with self-locking casters 18. The structure improves the transferability of the mixing tank and the screw conveyer, and enlarges the application range of the mixing tank and the screw conveyer to the field.
Specifically, a transparent window 19 is arranged on the side wall of the tank body corresponding to the stirring blade area. Set up the window in this position, highly just be fit for personnel on the one hand and do not carry out daily observation with the help of the instrument, this regional main compounding district of this on the other hand can observe the compounding state.
Specifically, the striker plate 20 is arranged right above the discharge port on the inner side wall of the tank body, the upper surface of the striker plate is an inclined plane inclined downwards, and the striker plate and the stirring blades and the vertical blades do not interfere with each other. The material baffle is mainly used for blocking the material right above the discharge hole and preventing the material from directly flowing out of the upper part of the discharge hole; the upper surface of the striker plate is an inclined plane which inclines downwards, so that the materials can be prevented from being accumulated on the striker plate.
The application method comprises the following steps: the material mixing tank and the screw conveyer are moved to a proper place through the self-locking caster wheels, so that the feed opening of the screw conveyer is positioned at the upper part of the feed opening of the material mixing tank, and the caster wheels are locked and fixed. Then, a feeding hole of the screw conveyor is communicated with a feeding hole of the mixing tank through a rubber steel wire pipe, a butterfly valve at a discharging hole of the mixing tank is closed, the mixing tank is started to rotate a motor and the screw conveyor, different raw materials are respectively added through a plurality of feeding holes on the screw conveyor, a plurality of raw materials are preliminarily mixed in the screw conveyor and then enter the mixing tank, a spiral blade in the mixing tank bears the materials, and the materials are mixed while rotating to be conveyed downwards; the materials fall to the lower part of the tank body, and the vertical blades and the stirring blades simultaneously mix and stir the materials; when the materials in the tank body are filled to seven-eight parts, the screw conveyor stops feeding, materials are continuously mixed in the mixing tank, the internal stirring condition is penetrated through a transparent window, and the uniform stirring is observed; the following two operations can be performed: the operation is that a material receiving bag is placed at the opening of a discharge pipe, a butterfly valve is opened, materials in a tank body are extruded out from a discharge port along with the rotation of a vertical blade, the materials are collected into the material bag, the butterfly valve is closed after the materials in a mixing tank are basically discharged, the materials are continuously fed from a screw conveyor, and the operation is repeated, so that the labor intensity can be greatly reduced; the second operation is as follows: the materials are uniformly mixed and the previous action is the same as the first operation, after the materials which are put into the material mixing tank are uniformly mixed, the materials are continuously fed through the screw conveyor, meanwhile, a horizontal screw conveyor can be arranged at the discharge port of the material mixing tank, the inlet of the horizontal screw conveyor is positioned under the discharge port of the material mixing tank or is in sealed connection through a pipeline, a butterfly valve is opened, the horizontal screw conveyor is started, the continuous mixing is realized, and the materials are automatically discharged; in the process, the discharging speed can be controlled by controlling the opening size of the butterfly valve, and then the material mixing time of the material in the mixing tank is controlled, so that the material mixing uniformity is controlled. The continuous discharging principle of the second operation is as follows: after the materials in the processed mixing tank are mixed evenly, the materials fed into the mixing tank by the screw conveyor are sequentially started and mainly located on the middle upper portion of the mixing tank, are continuously stirred by the mixing blades and gradually move downwards, and therefore continuous mixing is achieved.
The present invention has been described above with reference to the accompanying drawings, as long as it is a variety of insubstantial improvements made by using the method concept and technical solutions of the present invention; or without improvement, the above conception and technical solution of the present invention can be directly applied to other occasions, all within the protection scope of the present invention.
Claims (6)
1. The utility model provides a reaction sintering carborundum ceramic preparation is with compounding device, includes the compounding jar, the compounding jar includes cylindrical jar body and cover, and the cover sets up in jar body top, and the fixed rotation motor that is provided with on the cover rotates motor output shaft fixedly connected with and stretches into jar internal compounding axle, is located to be provided with feed inlet, its characterized in that on the cover of rotation motor one side: the spiral conveyer is obliquely arranged through a support, a plurality of conical feeding ports are arranged at the lower part of the spiral conveyer, a discharging port is arranged at the upper part of the spiral conveyer, connecting flanges are arranged on the discharging port of the spiral conveyer and a feeding port on the tank cover, the discharging port of the spiral conveyer is higher than the feeding port on the tank cover, and the discharging port and the feeding port are fixedly connected through a double-end flange rubber steel wire pipe;
the upper part of the mixing shaft extending into the tank body is provided with a spiral downward helical blade, and the edge of the helical blade is close to the inner wall of the tank body; a plurality of vertical blades are uniformly distributed at the lower part of the mixing shaft in the circumferential direction, the lower half parts of the vertical blades are made of rubber materials, the lower edges of the vertical blades are contacted with the inner bottom of the tank body, the outer edges of the vertical blades are close to the inner wall of the tank body, and a plurality of stirring blades are distributed on the mixing shaft between the spiral blades and the vertical blades;
the side wall of the tank body is provided with a discharge port, and the lower edge of the discharge port and the inner bottom of the tank body are positioned on the same horizontal plane; the discharge port is externally connected with a discharge pipe, a flange is arranged at the opening of the discharge pipe, and a butterfly valve is arranged on the discharge pipe.
2. The reaction sintering silicon carbide ceramic preparation mixing device as set forth in claim 1, characterized in that: the bottom of the mixing shaft is conical, and a conical groove which is matched with the bottom of the mixing shaft in a rotating mode is formed in the center of the inner bottom of the tank body.
3. The reaction sintering silicon carbide ceramic preparation mixing device as set forth in claim 2, characterized in that: and a plurality of through holes are formed in the blade surfaces of the auger blade in the screw conveyer, the helical blade on the mixing shaft, the stirring blade and the vertical blade.
4. The reaction sintering silicon carbide ceramic preparation mixing device as set forth in claim 3, characterized in that: the bottom of the tank body and the bottom of the spiral conveyor support are both provided with self-locking trundles.
5. The reaction sintering silicon carbide ceramic preparation mixing device as set forth in claim 4, characterized in that: the side wall of the tank body corresponding to the stirring blade area is provided with a transparent window.
6. The reaction sintering silicon carbide ceramic preparation mixing apparatus according to claim 5, characterized in that: the internal lateral wall of jar is located and is provided with the striker plate directly over the discharge gate, and the striker plate upper surface is the inclined plane of downward sloping, striker plate and stirring vane, vertical blade mutually noninterfere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120418001.3U CN214862686U (en) | 2021-02-24 | 2021-02-24 | Mixing device for preparing reaction sintered silicon carbide ceramic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120418001.3U CN214862686U (en) | 2021-02-24 | 2021-02-24 | Mixing device for preparing reaction sintered silicon carbide ceramic |
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| Publication Number | Publication Date |
|---|---|
| CN214862686U true CN214862686U (en) | 2021-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120418001.3U Active CN214862686U (en) | 2021-02-24 | 2021-02-24 | Mixing device for preparing reaction sintered silicon carbide ceramic |
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| Country | Link |
|---|---|
| CN (1) | CN214862686U (en) |
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2021
- 2021-02-24 CN CN202120418001.3U patent/CN214862686U/en active Active
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