CN107008911B - Catalyst powder preparation device for synthetic diamond - Google Patents
Catalyst powder preparation device for synthetic diamond Download PDFInfo
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- CN107008911B CN107008911B CN201710280088.0A CN201710280088A CN107008911B CN 107008911 B CN107008911 B CN 107008911B CN 201710280088 A CN201710280088 A CN 201710280088A CN 107008911 B CN107008911 B CN 107008911B
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- air inlet
- smelting furnace
- metal smelting
- powder
- control system
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/16—Making metallic powder or suspensions thereof using chemical processes
- B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
- B22F9/20—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds
- B22F9/22—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds using gaseous reductors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
- B22F2009/0888—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid casting construction of the melt process, apparatus, intermediate reservoir, e.g. tundish, devices for temperature control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
- B22F2009/0896—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid particle transport, separation: process and apparatus
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Centrifugal Separators (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
The utility model provides a synthetic catalyst powder preparation facilities for diamond, includes metal smelting furnace, middle package, atomizing chamber, receipts dividing jar, slush pump, centrifuge, reducing furnace, powder sorter and the PLC control system that connects gradually, and this device can overcome, improve water atomization powder process, and the powder is irregular, the shortcoming that oxygen content is high mostly, can realize the whole monitor function of powder process simultaneously.
Description
Technical Field
The invention relates to the field of catalyst powder production, in particular to a catalyst powder preparation device for synthetic diamond.
Background
The powder catalyst material is a key material for artificially synthesizing diamond, and compared with the flaky catalyst alloy, the powder catalyst alloy has the following advantages: 1) The specific surface area is large, and the synthetic yield per unit is high. 2) The chemical composition of the alloy is uniform. 3) The production cost is low. 4) The synthesized diamond crystal form has high integrity rate. 5) The synthesized diamond crystal is purer, the total inclusion amount is not more, and the distribution is finer and dispersed, and the diamond crystal is in random arrangement. Therefore, the powder catalyst is a preferred material for high-grade diamond synthesis catalyst with significant advantages.
The catalyst alloy powder is mainly prepared by an atomization method in China, and the method comprises two main types of water atomization and gas atomization. The cost of the catalyst alloy powder product manufactured by the water atomization method is greatly reduced compared with that of an air atomization product, but the oxygen content of the catalyst alloy powder product is about 10 times higher, and generally, the water atomization catalyst alloy powder does not undergo reduction treatment again after water atomization, the oxygen content of the water atomization catalyst alloy powder is 3000-5000ppm, and the oxygen content of the air atomization catalyst alloy powder is 200-500ppm. The price of catalyst powder with the same formula is about 100 yuan/kg, and the price of gas atomization production is about 70 yuan/kg. Therefore, the price of the catalyst alloy powder prepared by different processes is different, and the powder prepared by water atomization is mostly irregular and has higher oxygen content.
Disclosure of Invention
The invention aims to provide a catalyst powder preparation device for synthetic diamond, which overcomes and improves the defects of water atomization powder preparation, most of the powder is irregular and high in oxygen content, and can realize automatic control of the whole process of powder preparation.
The technical scheme adopted by the invention is as follows: the catalyst powder preparation device for the synthetic diamond comprises a metal smelting furnace, a tundish, an atomizing chamber, a collecting and separating tank, a slurry pump, a centrifuge, a reducing furnace, a powder separator and a PLC control system which are sequentially connected, wherein a feed inlet and an air inlet pipe are formed in the top of the metal smelting furnace, an air inlet valve and a gas flow detector are arranged on the air inlet pipe, the air inlet valve and the gas flow detector are both connected with the PLC control system, a discharge port is formed in the bottom of the side wall of the metal smelting furnace, and the discharge port is connected with the tundish; the bottom of the tundish is funnel-shaped, a flow guide pipe is arranged in the middle of the bottom, and the flow guide pipe extends into the atomizing chamber; the top of the atomizing chamber is provided with a water inlet pipe, the water inlet pipe is provided with a flow detector, the flow detector is connected with a PLC control system, the end part of the water inlet pipe is connected with a high-pressure spray disc, the high-pressure spray disc is positioned at two sides of a flow guide pipe, the flow guide pipe is positioned above the high-pressure spray disc, the bottom of the atomizing chamber is connected with a collecting and separating tank, the utility model discloses a powder separator, including receiving a minute jar, mud pump, reduction furnace, powder separator, steel band formula precision reduction furnace, reduction furnace lateral wall, inlet pipe, air inlet valve and gas flow detector are equipped with in the inlet pipe, air inlet valve and gas flow detector all are connected with PLC control system.
Preferably, the inner walls of the metal smelting furnace, the tundish, the atomizing chamber and the collecting and separating tank are coated with anti-corrosion coatings, the side wall of the metal smelting furnace is also provided with a temperature detector, and the temperature detector is connected with a PLC control system.
Preferably, the centrifuge is a three-leg filter centrifuge, a horizontal screw decanter centrifuge, or a horizontal screw filter centrifuge.
Preferably, a mesh screen is further arranged between the atomizing chamber and the collecting and separating tank, a high-frequency vibrator is arranged on the mesh screen, and the high-frequency vibrator is connected with the PLC control system.
Preferably, a cooling chamber is further arranged between the reduction furnace and the powder sorting machine, and a fan is arranged on the side wall of the cooling chamber.
The invention has the beneficial effects that: the PLC control system is connected with each key device, and is used for automatically controlling air inlet and water inlet and monitoring the running condition of each device; two high-pressure spray trays are arranged in the atomizing chamber, so that the metal melt can be better crushed into fine molten drops, and the sphericity is better; the mesh screen is connected with a vibrator, so that adhesion can be effectively prevented; the alloy powder slurry and atomized water are pumped into a centrifugal machine through a slurry pump to remove most of water, then the alloy powder slurry and atomized water pass through a reduction furnace, heat generated by the combustion of hydrogen is utilized to remove the last part of water vapor under the protection of mixed gas of nitrogen and hydrogen, and then the dried powder is cooled through a cooling chamber, so that the oxygen content can be effectively reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention.
In the figure, 1 is a metal smelting furnace, 1.1 is a feed inlet, 1.2 is an air inlet valve, 1.3 is a gas flow detector, 1.4 is a discharge outlet, 1.5 is a temperature monitor, 2 is a tundish, 2.1 is a flow guide pipe, 3 is an atomizing chamber, 3.1 is a water inlet pipe, 3.2 is a flow detector, 3.3 is a high-pressure spray disk, 4 is a collecting and separating tank, 5 is a slurry pump, 6 is a centrifuge, 7 is a reducing furnace, 7.1 is an air inlet valve, 7.2 is a gas flow detector, 8 is a powder sorting machine, 9 is a PLC control system, 10 is a mesh screen, 10.1 is a high-frequency vibrator, 11 is a cooling chamber and 11.1 is a fan.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The catalyst powder preparation device for the synthetic diamond comprises a metal smelting furnace 1, a tundish 2, an atomizing chamber 3, a collecting and separating tank 4, a slurry pump 5, a centrifuge 6, a reduction furnace 7, a powder separator 8 and a PLC control system 9 which are sequentially connected, wherein metal enters the metal smelting furnace 1 from a feed inlet 1.1 at the top of the metal smelting furnace 1, an inert gas main pipe is connected with an air inlet pipe, inert gas is filled in the metal smelting process for protection, an air inlet valve 1.2 and a gas flow detector 1.3 are arranged on the air inlet pipe, the air inlet valve 1.2 and the gas flow detector 1.3 are connected with the PLC control system 9, and the metal is discharged from a discharge port 1.4 at the bottom of the side wall of the metal smelting furnace 1 to enter the tundish 2 after smelting; the bottom of the tundish 2 is funnel-shaped, a flow guide pipe 2.1 is arranged in the middle of the bottom, and the flow guide pipe 2.1 extends into the atomizing chamber 3; the top of the atomizing chamber 3 is provided with a water inlet pipe 3.1, the water inlet pipe 3.1 is provided with a flow detector 3.2, the flow detector 3.2 is connected with a PLC control system 9, the end part of the water inlet pipe 3.1 is connected with a high-pressure spray disc 3.3, the high-pressure spray disc 3.3 is positioned at two sides of a guide pipe 2.1, the guide pipe 2.1 is positioned above the high-pressure spray disc 3.3, a metal solution enters the atomizing chamber 3 after passing through the guide pipe 2.1, meanwhile, the water inlet pipe 3.1 sprays water mist through the high-pressure spray disc 3.3, the metal solution is atomized, the bottom of the atomizing chamber 3 is connected with a collecting tank 4, the side wall of the collecting tank 4 is connected with a slurry pump 5 and then is sequentially connected with a centrifuge 6, a reduction furnace 7 and a powder separator 8, alloy slurry and atomized water mixture are formed after the metal solution is atomized by the slurry pump 5, the alloy slurry is pumped to the centrifuge 6, the mixture enters the reduction furnace 7 for dehydration and oxygen content reduction treatment again through the slurry pump 5, at the moment, the air inlet pipe on the side wall of the reduction furnace 7 is filled with inert gas for protection, the air inlet valve 7.1 is arranged on the air inlet pipe, the air inlet valve 7.1, the flow detector 7.2 is connected with the reduction furnace 7.7, the powder separator is connected with the gas separator 8, and the powder separator is connected with the powder separator 7.7, and then the powder separator is connected with the powder separator 8 through the PLC control system, and the flow detector 7; the inner walls of the metal smelting furnace 1, the tundish 2, the atomizing chamber 3 and the collecting and separating tank 4 are coated with anti-corrosion coatings, the side wall of the metal smelting furnace 1 is also provided with a temperature detector 1.5, and the temperature detector 1.5 is connected with a PLC control system 9; the centrifugal machine 6 is a three-foot filtering type centrifugal machine, a horizontal spiral sedimentation centrifugal machine or a horizontal spiral filtering centrifugal machine; a mesh screen 10 is further arranged between the atomizing chamber 3 and the collecting and separating tank 4, a high-frequency vibrator 10.1 is arranged on the mesh screen 10, and the high-frequency vibrator 10.1 is connected with a PLC control system 9; a cooling chamber 11 is further arranged between the reduction furnace 7 and the powder sorting machine 8, and a fan 11.1 is arranged on the side wall of the cooling chamber.
Claims (3)
1. The utility model provides a catalyst powder preparation facilities for synthetic diamond, includes metal smelting furnace, middle package, atomizing chamber, receipts dividing tank, slush pump, centrifuge, reducing furnace, powder sorter and PLC control system that connects gradually, its characterized in that: the top of the metal smelting furnace is provided with a feed inlet and an air inlet pipe, the air inlet pipe is provided with an air inlet valve and an air flow detector, the air inlet valve and the air flow detector are both connected with a PLC control system, the bottom of the side wall of the metal smelting furnace is provided with a discharge port, and the discharge port is connected with a tundish; the bottom of the tundish is funnel-shaped, a flow guide pipe is arranged in the middle of the bottom, and the flow guide pipe extends into the atomizing chamber; the utility model discloses a metal smelting furnace, including atomizing room, metal smelting furnace, air inlet pipe, air inlet valve, air flow detector, metal smelting furnace, air inlet pipe, air inlet valve, air flow detector, metal smelting furnace, air inlet valve, atomizing room and receive and divide a jar inner wall all to apply anticorrosive coating, the metal smelting furnace lateral wall still is equipped with the temperature detector, the temperature detector is connected with PLC control system, still be equipped with the cooling chamber between reduction furnace and the powder sorter, the cooling chamber lateral wall is equipped with the fan.
2. A catalyst powder preparation apparatus for synthetic diamond according to claim 1, wherein: the centrifugal machine is a three-foot filtering type centrifugal machine, a horizontal spiral sedimentation centrifugal machine or a horizontal spiral filtering centrifugal machine.
3. A catalyst powder preparation apparatus for synthetic diamond according to claim 1, wherein: a mesh screen is further arranged between the atomizing chamber and the collecting and separating tank, a high-frequency vibrator is arranged on the mesh screen, and the high-frequency vibrator is connected with the PLC control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710280088.0A CN107008911B (en) | 2017-04-26 | 2017-04-26 | Catalyst powder preparation device for synthetic diamond |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710280088.0A CN107008911B (en) | 2017-04-26 | 2017-04-26 | Catalyst powder preparation device for synthetic diamond |
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| Publication Number | Publication Date |
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| CN107008911A CN107008911A (en) | 2017-08-04 |
| CN107008911B true CN107008911B (en) | 2023-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710280088.0A Active CN107008911B (en) | 2017-04-26 | 2017-04-26 | Catalyst powder preparation device for synthetic diamond |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108746648A (en) * | 2018-07-10 | 2018-11-06 | 北京中材人工晶体研究院有限公司 | A kind of equipment and technique of diamond synthesis catalytic alloy powder |
| CN109108274B (en) * | 2018-10-24 | 2024-02-20 | 云南锡业新材料有限公司 | Method for rapidly and efficiently treating tin-base alloy spherical welding powder return material |
| WO2020097937A1 (en) * | 2018-11-16 | 2020-05-22 | 青岛云路先进材料技术股份有限公司 | Atomization comminuting apparatus and atomization comminuting method |
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| CN101362206A (en) * | 2008-10-09 | 2009-02-11 | 陈新国 | Preparation method of continuous high quality soldering powder |
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| CN107008911A (en) | 2017-08-04 |
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Address after: 214235 area a, Taihua Town, Yixing City, Wuxi City, Jiangsu Province Applicant after: Jiangsu Xingxian high tech materials Co.,Ltd. Address before: 214235 area a, Taihua Town, Yixing City, Wuxi City, Jiangsu Province Applicant before: JIANGSU ZHEHONG TECHNOLOGY CO.,LTD. |
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