CN113061986A - Diamond generation device and generation method thereof - Google Patents

Abstract

The invention relates to the technical field of diamond generation and preparation, in particular to a diamond generation device and a generation method thereof, comprising a frame; the furnace body is arranged on the rack, and the upper end of the furnace body is open; the reaction vessel is arranged in the furnace body, a molybdenum plate is arranged above the reaction vessel, and the lower end of the reaction vessel is connected with a material waiting vessel; the heating assembly is arranged in the furnace body and is circumferentially arranged around the reaction vessel; the furnace cover is detachably covered at the upper end of the furnace body, and is provided with an observation port and a camera; according to the diamond generating device, the reaction vessel is placed in the furnace body, the molybdenum plate is arranged above the reaction vessel, the lower end of the reaction vessel is connected with the material waiting vessel, the copper catalyst and the diamond seeds are placed in the reaction vessel, gas is introduced into the furnace body, the gas is decomposed into the sum after being heated by the heating assembly, atoms are sequenced and arranged by the copper catalyst, and the atoms are rearranged and deposited around the diamond seeds to generate the diamonds with large volume.

Description

Diamond generation device and generation method thereof

Technical Field

The invention relates to the technical field of diamond generation and preparation, in particular to a diamond generation device and a generation method thereof.

Background

Diamond is the hardest material in the world, is widely applied to the fields of electronics, aerospace, laser emitters, diamond ornaments and the like by unique performance, has excellent comprehensive performance of light, electricity, heat conduction and the like, and has wide application prospect; the existing known colorless diamonds are mainly derived from natural diamond ores, the formation of the natural diamonds takes hundreds of millions of years, the yield is low, the price is high, the long-term exploitation causes the exhaustion of natural diamond resources, and the cost is extremely high.

At present, the method for artificially synthesizing diamond is researched, mainly comprises CVD and a temperature difference method, but the carbon source is not uniformly distributed in a catalyst under the influence of temperature difference in the temperature difference method, so that carbon atoms accepted by inner and outer diamonds during growth are not balanced, the crystal forms are not uniform, the diamond with large volume cannot be prepared, and the prospect of large-scale application of diamond in industry is restricted.

Disclosure of Invention

To overcome the above-described deficiencies of the prior art, the present invention provides a diamond producing apparatus capable of producing diamonds of large volume.

The technical scheme adopted by the invention for solving the technical problems is as follows: a diamond generating apparatus includes a frame; the furnace body is arranged on the rack, the upper end of the furnace body is open, and ribs are arranged at the bottom of the furnace body; the reaction vessel is arranged in the furnace body, a molybdenum plate is arranged above the reaction vessel, and the lower end of the reaction vessel is connected with a material waiting vessel; a heating assembly disposed within the furnace body and circumferentially disposed around the reaction vessel; the hearth is erected on the rib and provided with a reaction cavity with an open upper end, and the reaction vessel is arranged in the reaction cavity; the bell can be dismantled to cover and establish the upper end of furnace body, and be provided with viewing aperture and camera on the bell, the interior survey of bell still is provided with and covers to establish the inner cup of reaction chamber upper end.

As a further improvement of the scheme, the heating assembly comprises a plurality of heating rods, and the plurality of heating rods are distributed along the circumferential direction of the reaction cavity.

As a further improvement of the scheme, the lower end of the hearth is provided with a blanking channel, and a crucible tube is arranged on the blanking channel.

As a further improvement of the scheme, the reaction vessel is provided with a blanking hole, and the blanking hole is connected with an external material blocking rod.

As a further improvement of the scheme, the bottom of the furnace body is also provided with a detachable material waiting assembly, and the material waiting vessel is accommodated in the material waiting assembly.

The present invention also provides a method for producing a diamond, comprising:

placing a copper catalyst and a plurality of diamond seeds in a reaction vessel;

introducing CH into the reaction cavity₄Heating the copper catalyst to 1100-1300 ℃;

CH₄decomposition into C and H₂C, arranging and depositing diamond seeds in a diamond lattice form to generate large-volume diamonds;

CH₄the chemical decomposition formula of (A) is:

the invention has the following beneficial effects: the diamond generating device of the invention puts a reaction vessel into a furnace body, a molybdenum plate is arranged above the reaction vessel, the lower end of the reaction vessel is connected with a material waiting vessel, a copper catalyst and diamond crystal seeds are put into the reaction vessel, and CH is introduced into the furnace body₄Gas, CH after heating by the heating element₄Decomposition of gas into C and H₂While the C atoms are ordered and arranged by the copper catalyst and deposited in a rearrangement around the diamond seeds, producing a voluminous diamond.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of an assembly of a diamond producing apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of a diamond producing apparatus according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 and 2, a diamond generating apparatus includes a frame 100 and a furnace body 101 disposed on the frame 100, wherein the furnace body 101 has an open upper end and a lower end, a detachable material-waiting component 107 is disposed at the lower end of the furnace body 101, a furnace cover 109 is disposed at the upper end, the furnace cover 109 is connected to a vertically disposed lifting component 118, the lifting component 118 can be a lifting electric cylinder conventional in the industry, the furnace cover 109 is driven by the lifting component 118 to move vertically up and down to close or open the furnace body 101, a furnace chamber 102 is disposed in the furnace body 101, the furnace chamber 102 has a reaction chamber 103 with an open upper end, a material-dropping channel is disposed at the lower end of the furnace chamber 102, a crucible tube 105 is disposed on the material-dropping channel, the furnace chamber 102 can be made of a heat insulating material, a reaction vessel 104 is disposed in the reaction chamber 103, and a copper catalyst and diamond seeds can, a molybdenum plate 113 is arranged above the reaction vessel 104, a material waiting vessel 106 is arranged at the lower end of the reaction vessel 104, a heating assembly 108 is arranged in the furnace chamber 102 along the periphery of the reaction vessel 104, the heating assembly 108 can be a plurality of heating rods, the temperature rise can be realized uniformly and rapidly by surrounding the plurality of heating rods arranged around the reaction vessel 104, it needs to be noted that the material waiting vessel 106 is arranged in the material waiting assembly 107, after the operation is completed, copper liquid in the reaction vessel 104 can flow into the material waiting vessel 106 along the crucible tube 105, and production waste can be transported away by separating the material waiting assembly 107 from the furnace body 101, so that the environment pollution is avoided; the furnace body 101 is further provided with ribs 116 for supporting the hearth 102, and the ribs 116 can be hollow square tubes, so that the hearth 102 is prevented from being in direct contact with the furnace body 101, and the heat insulation effect and the stability of the device operation are ensured; the furnace cover 109 is further provided with an inner cover 112 capable of being covered on the reaction chamber 103, the inner cover 112 is arranged at the lower end of the furnace cover 109 through a connecting rod, the size of the inner cover 112 is equivalent to that of the upper end of the reaction chamber 103 of the hearth 102, the purpose is to avoid that the copper catalyst in the reaction vessel 104 is violently reacted and splashed out of the reaction chamber 103 during generation, and the service life of the device is ensured.

In some embodiments, referring to fig. 1 and 2, the waiting assembly 107 can be detachably mounted at the lower end of the furnace body 101 by a clamp, and the diamond forming apparatus further comprises a lift truck 117 disposed below the furnace body 101 for facilitating transportation of the production waste.

In some embodiments, referring to fig. 1 and fig. 2, the reaction vessel 104 is provided with a blanking hole 114, the blanking hole 114 is connected to an external blocking rod 115, specifically, the blanking hole 114 is disposed at a lower end of the reaction vessel 104, the copper liquid in the reaction vessel 104 can flow into the waiting vessel 106 through the crucible tube 105 along the blanking hole 114, so as to facilitate adjustment of the amount of the copper catalyst in the reaction vessel 104 and outflow of the copper liquid after production is finished, and the generated large-volume diamond is left in the reaction vessel 104 to wait for taking out.

In some embodiments, referring to fig. 1 and fig. 2, the furnace cover 109 is detachably covered on the upper end of the furnace body 101, and the furnace cover 109 is further provided with an observation port 110 and a camera 111, so that an operator can observe conditions in the furnace conveniently, and the generation condition of diamonds in the furnace can be recorded in real time through the camera 111, so that experimental research is facilitated.

The invention relates to a method for generating diamonds, which comprises the following steps:

1) placing a copper catalyst and a plurality of diamond seeds in a reaction vessel 104;

2) CH is introduced into the reaction chamber 103₄Gas, and the copper catalyst in the reaction vessel 104 is heated to 1100-1300 ℃ by the heating component 108, the copper catalyst is melted at the temperature to form copper liquid, and CH is acted by the catalysis of the copper liquid and the heat temperature₄Decomposition of gas into C and H₂Gas, and carbon atoms are ordered and arranged under catalysis of copper liquid to be rearranged and deposited around diamond seeds in a lattice form, so that the diamond with large volume is generated.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.

Claims (6)

1. A diamond production apparatus comprising:

a frame (100);

the furnace body (101) is arranged on the rack (100), the upper end of the furnace body (101) is open, and a rib (116) is arranged at the bottom of the furnace body (101);

the reaction vessel (104) is arranged in the furnace body (101), a molybdenum plate (113) is arranged above the reaction vessel (104), and the lower end of the reaction vessel is connected with a material waiting vessel (106);

a heating assembly (108) disposed within the furnace body (101) and arranged circumferentially around the reaction vessel (104);

the hearth (102) is erected on the rib (116), the hearth (102) is provided with a reaction cavity (103) with an open upper end, and the reaction vessel (104) is arranged in the reaction cavity (103);

the furnace cover (109) is detachably covered at the upper end of the furnace body (101), an observation port (110) and a camera (111) are arranged on the furnace cover (109), and an inner cover (112) capable of being covered at the upper end of the reaction chamber (103) is further arranged on the inner side of the furnace cover (109).

2. A diamond production apparatus as claimed in claim 1 wherein said heating assembly (108) comprises a plurality of heating rods distributed circumferentially around said reaction chamber (103).

3. A diamond forming apparatus as claimed in claim 1 wherein said hearth (102) is provided with a blanking channel at a lower end thereof, said blanking channel being provided with a crucible tube (105).

4. A diamond production apparatus as claimed in claim 3 wherein said reaction vessel (104) is provided with a blanking hole (114), said blanking hole (114) being connected to an external blanking rod (115).

5. A diamond production apparatus as claimed in claim 1 wherein said furnace body (101) is further provided with a removable isopipe (107) at the bottom thereof, said isopipe (106) being received within said isopipe (107).

6. A method of diamond generation comprising:

a copper catalyst and a plurality of diamond seeds are placed in a reaction vessel (104);

CH is introduced into the reaction cavity (103)₄Heating the copper catalyst to 1100-1300 ℃;

CH₄decomposition into C and H₂C, arranging and depositing diamond seeds in a diamond lattice form to generate large-volume diamonds;

CH₄the chemical decomposition formula of (A) is:

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