CN218359327U - Graphite crucible capable of discharging air unidirectionally - Google Patents

Abstract

The application relates to a can one-way type graphite crucible of giving vent to anger relates to graphite crucible's technical field, including the crucible body, be equipped with the outlet duct on the crucible body, be equipped with the check valve on the outlet duct, the check valve is used for making the internal portion of crucible gas outwards discharge and prevent the external portion of crucible gas entering internal portion. The check valve is used for outside the internal gaseous exhaust crucible of crucible, reduces the external air of crucible simultaneously and gets into the internal portion of crucible, reduces the possibility that the air will test the material oxidation on the one hand, and on the other hand can also reduce the internal pressure of crucible, reduces the crucible body because of the too high possibility that leads to the explosion of internal pressure.

Description

One-way air outlet type graphite crucible

Technical Field

The application relates to the technical field of graphite crucibles, in particular to a graphite crucible capable of discharging air unidirectionally.

Background

The graphite crucible is processed by taking natural crystalline flake graphite as a main raw material and plastic refractory clay or carbon as a binder, and has the advantages of high temperature resistance, strong heat conduction performance, good corrosion resistance, long service life and the like. In the high-temperature use process of the graphite crucible, the thermal expansion coefficient is small, and the graphite crucible has certain strain resistance to rapid cooling and rapid heating; and has strong corrosion resistance to acid and alkaline solutions and excellent chemical stability. The graphite crucible has smooth inner wall, and the molten metal liquid is not easy to leak and adhere to the inner wall of the crucible, so that the metal liquid has good fluidity and castability, and is suitable for casting and molding various molds. Therefore, the graphite crucible is widely used for alloy tool steel smelting and non-ferrous metal and alloy smelting.

In the high-temperature heating process of the graphite crucible, in order to reduce the possibility that the test material is oxidized when the outside air enters the graphite crucible, the graphite crucible is usually arranged in a sealing manner.

However, in the actual use process, the inventors found that in the sealed state of the graphite crucible, the gas generated by heating the test material is difficult to be discharged, and the graphite crucible is likely to explode.

SUMMERY OF THE UTILITY MODEL

In order to improve the possibility that the internal gas is difficult to discharge in the heating process of the graphite crucible, the application provides a graphite crucible capable of discharging gas in one direction.

The application provides a can one-way type graphite crucible of giving vent to anger adopts following technical scheme:

the utility model provides a can one-way type graphite crucible of giving vent to anger, includes the crucible body, be equipped with the outlet duct on the crucible body, be equipped with the check valve on the outlet duct, the check valve is used for making the inside gaseous outside discharge of crucible body and stopping the outside gaseous inside crucible body that gets into of crucible body.

Through adopting above-mentioned technical scheme, the check valve is used for outside the internal gas exhaust crucible of crucible, reduces the external air of crucible simultaneously and gets into the internal portion of crucible, reduces the possibility that the air will test the material oxidation on the one hand, and on the other hand can also reduce the internal pressure of crucible, reduces the crucible body because of the too high possibility that leads to the explosion of internal pressure.

Preferably, the crucible body is fixedly connected with a heat insulation pipe, the heat insulation pipe is communicated with the crucible body, and one end, far away from the crucible body, of the heat insulation pipe is communicated with the air outlet pipe.

Through adopting above-mentioned technical scheme, thermal-insulated pipe is used for keeping apart the high temperature of the crucible body, reduces the high temperature and transmits on the outlet duct and then leads to the possibility that the outlet duct melts, prolongs the life of outlet duct.

Preferably, the crucible body is rotatably connected with a stirring shaft, the stirring shaft is provided with a plurality of stirring blades, and the crucible body is provided with a rotation driving assembly for driving the stirring shaft.

Through adopting above-mentioned technical scheme, drive assembly drive (mixing) shaft rotates, and the (mixing) shaft rotates and drives the stirring leaf and rotate, and the stirring leaf is used for stirring the test material, increases the heated area of test material, and then improves the stirring homogeneity of test material.

Preferably, the driving assembly comprises fan blades, the fan blades are coaxially and fixedly connected with the stirring shaft, and one end, far away from the crucible body, of the air outlet pipe is arranged towards the direction of the fan blades.

Through adopting above-mentioned technical scheme, the gas blows the flabellum rotation in the outlet duct, and the flabellum drives the (mixing) shaft and rotates, and then drives the stirring leaf and stir test material, and convenient operation improves the reutilization of waste gas, the energy can be saved.

Preferably, one end of the gas outlet pipe, which is far away from the crucible body, is provided with a pressure increasing pipe, and the pipe diameter of the pressure increasing pipe is gradually reduced along the gas flow direction.

Through adopting above-mentioned technical scheme, the pipe diameter of pressure boost pipe reduces along the gas flow direction gradually, and then increases the orificial gas pressure of pressure boost pipe, further improves the rotation efficiency of flabellum.

Preferably, a scraper is coaxially and fixedly connected to the stirring shaft and is abutted against the inner wall of the crucible body.

Through adopting above-mentioned technical scheme, the (mixing) shaft rotates and drives the scraper blade and rotate, and the scraper blade strikes off the material of adhesion on with the crucible body inner wall, reduces the possibility that the material takes place to block up.

Preferably, the stirring shaft, the stirring blades, the scraper blade and the fan blades are all made of graphite.

By adopting the technical scheme, the stirring shaft, the stirring blades, the scraper and the fan blades are made of graphite materials, so that the stirring shaft, the stirring blades, the scraper and the fan blades are prevented from being damaged by high temperature, and the service life is prolonged.

Preferably, the crucible body is provided with anti-skid grains.

By adopting the technical scheme, the anti-skid lines facilitate increasing the roughness of the surface of the crucible body, so that on one hand, the friction force between hands and the crucible body is increased, and the possibility of falling and breaking the crucible body is reduced; on the other hand, the friction force between the crucible body and the test bed is convenient to increase, and the possibility of slipping of the crucible body is reduced.

In summary, the present application includes at least one of the following beneficial technical effects:

the one-way valve is used for discharging gas in the crucible body out of the crucible body and simultaneously reducing the air outside the crucible body from entering the interior of the crucible body, so that the possibility that the air oxidizes a test material is reduced, the pressure in the crucible body can be reduced, and the possibility of explosion of the crucible body caused by overhigh internal pressure is reduced;

the driving assembly drives the stirring shaft to rotate, the stirring shaft rotates to drive the stirring blades to rotate, and the stirring blades are used for stirring the test materials, so that the heating area of the test materials is increased, and the stirring uniformity of the test materials is improved;

the gas blows the flabellum rotation in the outlet duct, and the flabellum drives the (mixing) shaft and rotates, and then drives the stirring leaf and stir the test material, and convenient operation improves the reutilization of waste gas, the energy can be saved.

Drawings

FIG. 1 is a schematic structural view of a graphite crucible as a whole in an example of the present application.

FIG. 2 is an exploded view for embodying the inside of a crucible box in the example of the present application.

Description of the reference numerals: 1. a crucible body; 11. a crucible cover; 12. a crucible box; 13. a heat insulating pipe; 14. anti-skid lines; 2. an air outlet pipe; 21. a one-way valve; 3. a drive assembly; 31. a fan blade; 32. a pressure increasing pipe; 4. a stirring shaft; 41. stirring blades; 42. a scraper.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses a graphite crucible capable of discharging gas unidirectionally. Referring to fig. 1, a can one-way type graphite crucible of giving vent to anger includes the crucible body 1, and the crucible body 1 is square, and the crucible body 1 includes crucible lid 11 and crucible case 12, and crucible lid 11 realizes dismantling through heat-resisting bolt with crucible case 12 and is connected. Install outlet duct 2 on the crucible lid 11, outlet duct 2 and crucible case 12 intercommunication, install check valve 21 on the outlet duct 2, check valve 21 is used for discharging the inside gas of crucible case 12 outside crucible case 12, reduces the inside possibility that leads to the explosion because of pressure is too big of crucible case 12.

Referring to fig. 2, a heat insulation pipe 13 is communicated with the crucible cover 11, the heat insulation pipe 13 is made of zirconia ceramics, and one end of the heat insulation pipe 13 far away from the crucible cover 11 is fixedly connected and communicated with the gas outlet pipe 2. The heat insulation pipe 13 can prevent the high temperature of the crucible cover 11 from being transmitted to the outlet pipe 2, and the risk that the outlet pipe 2 is scalded by the high temperature is reduced. Install drive assembly 3 on the crucible case 12, drive assembly 3 includes flabellum 31, and rotation is connected with (mixing) shaft 4 on the crucible case 12, and fixedly connected with stirring leaf 41 on the (mixing) shaft 4, stirring leaf 41 has a plurality ofly along the axial array of (mixing) shaft 4. In order to reduce the possibility that the test material adheres to the inner wall of the crucible box 12, a scraper 42 is coaxially and fixedly connected to the stirring shaft 4, and the scraper 42 abuts against the inner wall of the crucible box 12. One end of the stirring shaft 4 extends out of the crucible box 12, one end of the stirring shaft 4 extending out of the crucible box 12 is coaxially and fixedly connected with the fan blades 31, and the pipe orifice of the air outlet pipe 2 is arranged towards the edge of the fan blades 31. The gas discharged from the gas outlet pipe 2 blows the fan blades 31 to rotate, so as to drive the stirring shaft 4 to rotate, and the stirring shaft 4 drives the stirring blades 41 to rotate, so that the mixing uniformity of the materials to be tested in the crucible box 12 is improved; on the other hand, the waste gas discharged from the gas outlet pipe 2 can be secondarily utilized, and energy is saved. In order to prolong the service life of the fan blades 31, the stirring shafts 4, the stirring blades 41 and the scraping plates 42, the fan blades 31, the stirring shafts 4, the stirring blades 41 and the scraping plates 42 are all made of graphite materials, and the possibility of high-temperature damage is reduced.

Referring to fig. 2, in order to increase the rotation rate of the fan blade 31, one end of the air outlet pipe 2 facing the fan blade 31 is communicated with a pressure increasing pipe 32, the pipe diameter of the pressure increasing pipe 32 is gradually reduced along the flow direction of the air, so as to increase the flow rate of the air at the orifice of the pressure increasing pipe 32, and further increase the rotation rate of the fan blade 31, thereby increasing the stirring rate of the stirring blade 41, and further improving the mixing uniformity of the test material.

Referring to fig. 2, in order to reduce the possibility that the crucible box 12 slips and is broken, the bottom and the outer side wall of the crucible box 12 are provided with anti-slip lines 14, so that on one hand, the friction force between the crucible box 12 and a hand is increased conveniently, the possibility that the hand and the crucible box 12 slide relatively is reduced, and the possibility that the crucible box 12 falls and is broken is further reduced; on the other hand, the anti-skid texture 14 at the bottom of the crucible box 12 can increase the friction force between the crucible box 12 and the worktable, so that the possibility of relative sliding between the crucible box 12 and the worktable is reduced, and the fixing stability of the crucible box 12 is improved.

The implementation principle of the unidirectional air outlet type graphite crucible in the embodiment of the application is as follows: during operation, a user firstly puts a test material into the crucible box 12, and then covers the crucible cover 11 on the crucible box 12 and is fixedly connected with the crucible box 12. Then begin to heat crucible case 12, high temperature makes crucible case 12 inside produce a large amount of gases, and gas gets into outlet duct 2 through heat insulating tube 13, then blows to flabellum 31 after through the pressure boost 32 pressure boost, and flabellum 31 rotates and drives (mixing) shaft 4 and rotate, and (mixing) shaft 4 rotates and drives stirring leaf 41 and scraper blade 42 and rotate, and stirring leaf 41 stirs the test material, improves the test material and drives the homogeneity of mixing, and then improves the homogeneity of being heated of test material. Scraper 42 and the inboard wall butt of crucible box 12, scraper 42 rotate and strike off the test material of adhesion on the inboard wall of crucible box 12, reduce the possibility that the material takes place to pile up.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. A graphite crucible capable of discharging gas unidirectionally is characterized in that: including the crucible body (1), be equipped with outlet duct (2) on the crucible body (1), be equipped with check valve (21) on outlet duct (2), check valve (21) are used for making the inside gas of the crucible body (1) outwards discharge and prevent that the outside gas of the crucible body (1) gets into inside the crucible body (1).

2. A graphite crucible of unidirectional outgassing type according to claim 1, wherein: fixedly connected with heat insulating tube (13) on the crucible body (1), heat insulating tube (13) and crucible body (1) intercommunication, crucible body (1) one end and outlet duct (2) intercommunication are kept away from to heat insulating tube (13).

3. A graphite crucible of unidirectional outgassing type according to claim 1, wherein: the crucible is connected with (mixing) shaft (4) on the body (1) of crucible rotates, be equipped with a plurality of stirring leaves (41) on (mixing) shaft (4), be equipped with on the body (1) of crucible and be used for driving (mixing) shaft (4) rotation drive subassembly (3).

4. A graphite crucible of unidirectional outgassing type according to claim 3, wherein: drive assembly (3) include flabellum (31), flabellum (31) and (mixing) shaft (4) coaxial fixed connection, the one end of crucible body (1) is kept away from in outlet duct (2) sets up towards flabellum (31) direction.

5. The graphite crucible of claim 4, wherein: one end of the gas outlet pipe (2) far away from the crucible body (1) is provided with a pressure increasing pipe (32), and the pipe diameter of the pressure increasing pipe (32) is gradually reduced along the gas flow direction.

6. A graphite crucible of unidirectional outgassing type according to claim 5, wherein: the stirring shaft (4) is coaxially and fixedly connected with a scraper (42), and the scraper (42) is abutted against the inner wall of the crucible body (1).

7. A graphite crucible of unidirectional outgassing type according to claim 6, wherein: the stirring shaft (4), the stirring blades (41), the scraping plate (42) and the fan blades (31) are all made of graphite materials.

8. A graphite crucible of unidirectional outgassing type according to claim 1, wherein: the crucible body (1) is provided with anti-skid grains (14).

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