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CN-122007432-A - Molybdenum powder continuous production device and continuous production method

CN122007432ACN 122007432 ACN122007432 ACN 122007432ACN-122007432-A

Abstract

The invention relates to the technical field of molybdenum powder production and discloses a molybdenum powder continuous production device and a molybdenum powder continuous production method, wherein the production device comprises a reaction long furnace, a continuous reaction mechanism is arranged in the reaction long furnace and is used for realizing continuous and uninterrupted production operation; the continuous reaction mechanism comprises an annular conveyor, reaction crucibles and heating assemblies, wherein a rotating base is arranged on the annular conveyor in an array mode, each rotating base is provided with one reaction crucible, an independent heating assembly is arranged in a heating area of a reaction long furnace and corresponds to a preset position of each reaction crucible, and the heating assemblies are configured to carry out heating control of different temperature gradients on the reaction crucibles at different positions.

Inventors

  • CHI HONG
  • ZHANG ZHENDONG

Assignees

  • 四平市和鑫科技有限公司

Dates

Publication Date
20260512
Application Date
20260303

Claims (10)

  1. 1. The molybdenum powder continuous production device is characterized by comprising a long reaction furnace (11), wherein a continuous reaction mechanism (2) is arranged in the long reaction furnace (11) and is used for realizing continuous and non-stop production operation; The continuous reaction mechanism (2) comprises an annular conveyor (21), reaction crucibles (23) and a heating assembly (24), wherein a rotating base (22) is arranged on the annular conveyor (21), and each rotating base (22) is provided with one reaction crucible (23); an independent heating component (24) is arranged in the heating zone of the reaction long furnace (11) corresponding to the preset position of each reaction crucible (23), and the heating component (24) is configured to perform heating control of different temperature gradients on the reaction crucibles (23) at different positions; The bottom of the inside of the reaction crucible (23) is provided with a crucible inner base (31), a plurality of telescopic blowing columns (32) are arranged on the crucible inner base (31) in an array manner, and the air pressure value required by the telescopic action of each blowing column (32) is different; in the process of heating raw materials in the reaction crucible (23) through the heating assembly (24), hydrogen is introduced into the reaction crucible (23), the hydrogen drives the blowing column (32) to perform irregular telescopic movement, when the blowing column (32) stretches out, the hydrogen is sprayed out to the horizontal direction through the flat blowing hole (301), and the blowing column (32) stretches out and then stretches into raw material powder.
  2. 2. The continuous molybdenum powder production device according to claim 1, wherein the reaction furnace (11) is elliptical, the reaction furnace (11) is divided into two spaces, the front space is a heating area, the back is a cooling recovery furnace (12), the annular conveyor (21) can drive the reaction crucible (23) to react in the heating area by heating, then the reaction crucible is conveyed into the cooling recovery furnace (12), and finally the reaction crucible reenters the heating area.
  3. 3. The molybdenum powder continuous production device according to claim 2, wherein the cooling recovery furnace (12) is provided with a powder sucking component (13) and an automatic discharging component (14), the reacted reaction crucible (23) is cooled to a specified temperature and then sequentially passes through the powder sucking component (13) and the automatic discharging component (14) to reenter the heating zone, the reacted raw materials are sucked out by the reaction crucible (23) through the powder sucking component (13), and the raw materials are refilled into the reaction crucible (23) when passing below the automatic discharging component (14).
  4. 4. A molybdenum powder continuous production device according to claim 3, wherein the heating assembly (24) comprises a clamping arm piece (241), outer cover plates (242) are fixedly arranged at the tail ends of two mechanical arms of the clamping arm piece (241), heating wire pipes (243) are fixedly inlaid in the inner walls of the two outer cover plates (242), the two outer cover plates (242) are semicircular, the reaction crucible (23) moves to a position opposite to the heating assembly (24), the two outer cover plates (242) are controlled to be combined and wrapped on the periphery of the bottom of the reaction crucible (23), and the heating is completed by opening the two outer cover plates (242).
  5. 5. The molybdenum powder continuous production device according to claim 4, wherein a crucible seat plate (25) is fixedly arranged at the center of the upper wall of the rotation following base (22), ventilation ports (26) are fixedly arranged on the periphery of the upper wall of the crucible seat plate (25), and an air supply port (27) is fixedly arranged at the center of the upper wall of the crucible seat plate (25).
  6. 6. The molybdenum powder continuous production device according to claim 5, wherein an air inlet port (28) is formed in the crucible seat plate (25), an automatic air supply assembly (15) fixed on the inner wall of the reaction furnace (11) is arranged right opposite to the front surface of the heating assembly (24), the air inlet port (28) is communicated with the air vent (26) and the air supply port (27), and when the reaction crucible (23) moves to the position of the heating assembly (24), hydrogen is supplied to the air inlet port (28) through the automatic air supply assembly (15).
  7. 7. The molybdenum powder continuous production device according to claim 6, wherein a partition plate (35) is arranged in the crucible inner base (31), a pressure release chamber (38) is arranged in an upper space of the partition plate (35), a pressurizing chamber (39) is arranged in a lower space of the partition plate (35), the pressurizing chamber (39) and the pressure release chamber (38) are mutually independent, and a bottom groove of the crucible inner base (31) is mutually matched with the crucible base plate (25).
  8. 8. The molybdenum powder continuous production device according to claim 7, wherein a limiting cylinder (36) is arranged at the bottom of each blowing column (32), the limiting cylinders (36) penetrate through the partition plate (35) from the pressurizing chamber (39) and extend into the pressurizing chamber (39), the air leakage holes (303) are formed in the outer walls of the tops of the limiting cylinders (36), the pressurizing holes (304) are formed in the outer walls of the bottoms of the limiting cylinders (36), a sliding block (302) is slidably arranged in each limiting cylinder (36), the sliding block (302) is fixedly connected with the blowing column (32), limiting springs (305) are arranged below the sliding block (302), and the elastic coefficients of the limiting springs (305) are different.
  9. 9. The continuous molybdenum powder production device according to claim 8, wherein hydrogen in the air vent (26) and the air supply port (27) enters the base (31) in the crucible, a part of hydrogen enters the blowing column (32) through the air pipe (37), a part of hydrogen enters the pressurizing chamber (39) and then enters the limiting cylinder (36) through the pressurizing hole (304), the blowing column (32) is pushed to extend, when the sliding block (302) is lifted to the position of the air release hole (303), the air pressure leaks, the blowing column (32) is pulled back, the released hydrogen is sprayed out along the telescopic gap of the blowing column (32), and a part of hydrogen flows to the air curtain nozzle (29) through the air passage (33) in the thick wall of the reaction crucible (23), the air curtain nozzle (29) is arranged on the inner side of the crucible of the reaction crucible (23), and the air spraying direction is inclined downwards to form a cross air curtain.
  10. 10. A continuous production method of a molybdenum powder continuous production apparatus as defined in claims 1 to 9, comprising the steps of: S1, placing a reaction crucible (23) filled with molybdenum powder raw materials on a rotation-following base (22) of an annular conveyor (21); S2, sequentially conveying the reaction crucible (23) to each heating assembly (24) of a heating zone of the reaction long furnace (11) by the annular conveyor (21); S3, when the reaction crucible (23) moves to the position where the heating assembly (24) is right opposite, the heating assembly (24) acts to wrap the bottom of the crucible for heating, and meanwhile, hydrogen is introduced into the reaction crucible (23) through the automatic air supply assembly (15); S4, conveying the reaction crucible (23) with the heating reaction to a cooling recovery furnace (12) for cooling, sequentially sucking out finished molybdenum powder through a powder sucking assembly (13), and re-filling raw materials through an automatic discharging assembly (14); S5, the reaction crucible (23) after the blanking enters the heating area again along with the annular conveyor (21), and the next cycle is started.

Description

Molybdenum powder continuous production device and continuous production method Technical Field The invention relates to the field of molybdenum powder production, in particular to a molybdenum powder continuous production device and a molybdenum powder continuous production method. Background Molybdenum powder is used as an important metal powder material, is widely applied to the fields of aerospace, electronics, chemical industry and the like, and the traditional molybdenum powder production process, such as a hydrogen reduction method, is generally produced intermittently, and has the problems of low production efficiency, high energy consumption, poor product batch stability and the like. In the reaction process, the reactant powder is accumulated and agglomerated, so that the problems of insufficient reaction, influence on the product quality, low production efficiency, high energy consumption, poor product batch stability, powder agglomeration and uneven reaction are possibly caused. Therefore, we propose a molybdenum powder continuous production device and a molybdenum powder continuous production method. Disclosure of Invention The invention provides a molybdenum powder continuous production device and a molybdenum powder continuous production method, which solve the technical problems of low production efficiency, high energy consumption, poor product batch stability, powder agglomeration and uneven reaction in the related technology. The first aspect of the invention provides a molybdenum powder continuous production device, which comprises a long reaction furnace, a continuous reaction mechanism, a first reaction device and a second reaction device, wherein the long reaction furnace is internally provided with the continuous reaction mechanism and is used for realizing continuous and non-stop production operation; The continuous reaction mechanism comprises an annular conveyor, reaction crucibles and a heating assembly, a rotating base is arranged on the annular conveyor in an array manner, and each rotating base is provided with one reaction crucible; An independent heating component is arranged in the heating zone of the reaction long furnace and corresponds to the preset position of each reaction crucible, and the heating components are configured to perform heating control of different temperature gradients on the reaction crucibles at different positions; the bottom of the interior of the reaction crucible is provided with a crucible inner base, and a plurality of telescopic blowing and spraying columns are arranged on the crucible inner base in an array manner, and the air pressure value required by the telescopic action of each blowing and spraying column is different; In the process of heating raw materials in the reaction crucible through the heating component, hydrogen is introduced into the reaction crucible, the hydrogen drives the blowing and spraying column to perform irregular telescopic movement, when the blowing and spraying column stretches out, the hydrogen is sprayed out to the horizontal direction through the flat blowing hole, and the blowing and spraying column stretches out and can stretch into raw material powder. Further, the reaction long furnace is elliptical, the reaction long furnace is divided into two spaces, the front space is a heating area, the back is a cooling recovery furnace, the annular conveyor can drive the reaction crucible to react in the heating area by heating, then the reaction crucible is conveyed into the cooling recovery furnace, and finally the reaction crucible reenters the heating area. Further, a powder sucking component and an automatic discharging component are arranged on the cooling recovery furnace, after the reaction crucible is cooled to a specified temperature, the reaction crucible sequentially passes through the powder sucking component and the automatic discharging component and then reenters the heating zone, the reaction crucible sucks out the reacted raw materials through the powder sucking component, and when the reaction crucible passes below the automatic discharging component, the raw materials are refilled into the reaction crucible. Further, the heating assembly comprises a clamping arm piece, outer cover plates are fixedly arranged at the tail ends of two mechanical arms of the clamping arm piece, heating wire pipes are fixedly inlaid in the inner walls of the two outer cover plates, the two outer cover plates are semicircular, the reaction crucible moves to a position opposite to the heating assembly, the two outer cover plates are controlled to be combined and wrapped at the periphery of the bottom of the reaction crucible, and the two outer cover plates are heated to be opened. Further, a crucible seat disk is fixedly arranged at the center of the upper wall of the rotating base, an air vent is fixedly arranged at the periphery of the upper wall of the crucible seat disk, and an air supply port is fixedly arranged at t