Search

CN-121977348-A - Calcining equipment for preparing high-purity tantalum oxide

CN121977348ACN 121977348 ACN121977348 ACN 121977348ACN-121977348-A

Abstract

The invention belongs to the technical field of material science and engineering, and discloses calcining equipment for preparing high-purity tantalum oxide, which comprises a workbench, wherein a fluorotantalic acid solution produced by a tantalum-niobium liquid extraction method is used as a raw material, ammonia water and ammonia gas are adopted for neutralization precipitation, the tantalum oxide particles are produced by controlling factors such as different ammonia water concentrations, tantalum liquid concentrations, ammonia flushing speeds, neutralization temperatures and the like, then the produced tantalum oxide particles are poured into a spherical shell, a calcining crucible is started, the tantalum oxide particles in the spherical shell are thermally conducted through the temperature rise of the calcining crucible, so that the tantalum oxide particles are calcined, a motor is driven to drive a rotating shaft and the spherical shell to rotate, the tantalum oxide particles can be heated up in a rolling way at the bottom of the inner wall of the spherical shell in the rotating process, the calcining effect of the tantalum oxide particles is improved, the tantalum oxide particles can be heated more uniformly, the conversion efficiency of the tantalum oxide particles can be accelerated, and the surface structure of the particles can be optimized.

Inventors

  • Nan Caifeng
  • JIANG YANYING
  • He Renbiao

Assignees

  • 九江市金鑫有色金属有限公司

Dates

Publication Date
20260505
Application Date
20260130

Claims (10)

  1. 1. The calcining equipment for preparing the high-purity tantalum oxide comprises a workbench (1), wherein one side of the top of the workbench (1) is fixedly connected with a fixing plate (2), and the top end of the fixing plate (2) is hinged with a calcining shell (3), and is characterized by further comprising; Tantalum oxide calcines mechanism (4), tantalum oxide calcines mechanism (4) including fixed connection concave frame (41) in workstation (1) top one side, the top of concave frame (41) articulates there is hydraulic rod (42), the expansion end of hydraulic rod (42) articulates in the bottom one side of calcining shell (3), the outer wall one side fixedly connected with motor (43) of calcining shell (3), the one end of motor (43) is provided with calcines subassembly (44) for calcine the tantalum grain after the preparation.
  2. 2. The calcination apparatus for producing high purity tantalum oxide according to claim 1, wherein the calcination unit (44) comprises a rotation shaft (441) fixedly connected to an output end of the motor (43), one end of the rotation shaft (441) is fixedly connected with a spherical shell (442), the spherical shell (442) is disposed inside the calcination shell (3), a calcination crucible (443) is contacted with a bottom of the spherical shell (442), and a bottom of the calcination crucible (443) is fixedly connected to a bottom of an inner wall of the calcination shell (3).
  3. 3. The calcination equipment for high purity tantalum oxide production according to claim 2, wherein the middle end outer wall of the rotating shaft (441) is fixedly connected with a reciprocating screw rod (444), one end outer wall of the reciprocating screw rod (444) is in threaded connection with a threaded plate (445), one side of the threaded plate (445) is penetrated and in sliding connection with a limit rod (446), and one end of the limit rod (446) is fixedly connected with one side of the inner wall of the calcination shell (3).
  4. 4. The calcination apparatus for high purity tantalum oxide production according to claim 3, wherein the side wall of the screw plate (445) is provided with a purification component (46), the purification component (46) comprises a cross rod (461) fixedly connected to one side of the screw plate (445), one end of the cross rod (461) far away from the screw plate (445) is fixedly connected with a piston plate (462), and the outer wall of the piston plate (462) is slidably connected with a special-shaped shell (463).
  5. 5. The calcination equipment for preparing high-purity tantalum oxide according to claim 4, wherein one side of the special-shaped shell (463) is fixedly connected to one side of the outer wall of the calcination shell (3), an elbow pipe (464) is communicated with one side of the inner wall of the special-shaped shell (463), a first one-way valve (465) is communicated with one end outer wall of the elbow pipe (464), and a strip-shaped shell (466) is communicated with one end, far away from the special-shaped shell (463), of the elbow pipe (464).
  6. 6. The calcination equipment for high purity tantalum oxide production according to claim 5, wherein both ends of one side of the strip-shaped shell (466) are fixedly connected to one side of the outer wall of the calcination shell (3), one side of the inner wall of the strip-shaped shell (466) is communicated with a conical shell (467), the conical shell (467) is arranged in the spherical shell (442), and both ends of one side of the piston plate (462) close to the cross rod (461) are fixedly connected with a first tension spring (468).
  7. 7. The calcination equipment for high purity tantalum oxide production according to claim 6, wherein two first tension springs (468) are arranged in a group, three groups of first tension springs (468) are arranged in the special-shaped shell (463), one end of each group of first tension springs (468) is fixedly connected to one side of the inner wall of the special-shaped shell (463), a sliding frame ring (469) is fixedly connected between the two groups of first tension springs (468), an activated carbon plate (4610) is fixedly connected to the inner wall of the sliding frame ring (469), and the outer wall of the sliding frame ring (469) is slidably connected to the inner wall of the special-shaped shell (463).
  8. 8. The calcination equipment for high purity tantalum oxide production according to claim 7, wherein the inner wall of the special-shaped shell (463) is provided with an auxiliary component (47), the auxiliary component (47) comprises exhaust pipes (471) communicated with two sides of the inner wall of the special-shaped shell (463), one end outer wall of each exhaust pipe (471) is communicated with a second one-way valve (472), and one end, far away from the special-shaped shell (463), of each exhaust pipe (471) is communicated with a semicircular box (473).
  9. 9. The calcination equipment for high purity tantalum oxide production according to claim 8, wherein a plurality of cylinders (474) are fixedly connected to one side of the inner wall of the semicircular box (473), a second tension spring (475) is fixedly connected to one end of the inner wall of the cylinder (474), a circular plate (476) is fixedly connected to one end of the second tension spring (475), the outer wall of the circular plate (476) is slidably connected to the inner wall of the cylinder (474), a round rod (477) is fixedly connected to one side of the circular plate (476), and an impact ball (478) is fixedly connected to one end of the round rod (477) away from the circular plate (476).
  10. 10. The calcination equipment for high purity tantalum oxide production according to claim 9, wherein the outer wall of one end of the impact ball (478) is contacted with a conical tube (479), one end of the conical tube (479) is communicated with one side of the inner wall of the semicircle box (473), one side of the semicircle box (473) close to the outer wall of the exhaust pipe (471) is fixedly connected with a connecting plate (4710), and the top of the connecting plate (4710) is fixedly connected with the bottom of the strip-shaped shell (466).

Description

Calcining equipment for preparing high-purity tantalum oxide Technical Field The invention belongs to the technical field of material science and engineering, and particularly relates to calcining equipment for preparing high-purity tantalum oxide. Background The calcining equipment for preparing high-purity tantalum oxide is mainly used for high-temperature treatment of tantalum oxide so as to improve the purity and performance of tantalum oxide. The calcination process is performed by heating and gas flow treatment to remove impurities from the tantalum oxide particles and achieve the desired crystal structure and physical properties. The calcination process is used for providing accurate high-temperature environment and optimizing air flow control so as to remove impurities and improve the purity of tantalum oxide, so that the method is suitable for various high-requirement application fields. The calcining equipment for the tantalum-niobium high-purity oxide with the publication number of CN221444795U in the prior art comprises a processing box, a calcining box and the like, wherein the top of the processing box is connected with the calcining box. According to the utility model, the tail gas generated by calcination is led into the tail gas treatment cylinder through the tail gas pump, harmful substances in the tail gas are diluted through the tail gas treatment liquid in the tail gas treatment cylinder, the tail gas treatment liquid is heated through the tail gas, and the heat exchange plates heat combustion air by utilizing the tail gas temperature, so that the effects of purifying the calcined tail gas, preheating and recycling the tail gas generally, reducing energy consumption and reducing production cost can be achieved. Although the above application can purify and reuse the calcined tail gas, the tantalum-niobium material is prevented from being in the calcining crucible, and the tantalum-niobium material is in a static state in the calcining crucible, so that heat sources can be concentrated in certain areas, and other parts can not reach the required high temperature due to insufficient heat transfer. Uneven heating of tantalum and niobium can cause excessive heating of part of tantalum and niobium substances and even scorching, and other parts can not completely react, so that the purity of products is inconsistent. Disclosure of Invention In order to solve the problem of uneven heating in the background technology, the invention provides calcining equipment for preparing high-purity tantalum oxide. In order to achieve the purpose, the calcining equipment for preparing the high-purity tantalum oxide comprises a workbench, wherein one side of the top of the workbench is fixedly connected with a fixing plate, the top end of the fixing plate is hinged with a calcining shell, the calcining equipment further comprises a tantalum oxide calcining mechanism, the tantalum oxide calcining mechanism comprises a concave frame fixedly connected to one side of the top of the workbench, the top end of the concave frame is hinged with a hydraulic rod, the movable end of the hydraulic rod is hinged to one side of the bottom of the calcining shell, one side of the outer wall of the calcining shell is fixedly connected with a motor, and one end of the motor is provided with a calcining assembly used for calcining prepared tantalum particles. Preferably, the calcining component comprises a rotating shaft fixedly connected with the output end of the motor, one end of the rotating shaft is fixedly connected with a spherical shell, the spherical shell is arranged inside the calcining shell, the bottom of the spherical shell is contacted with a calcining crucible, and the bottom of the calcining crucible is fixedly connected with the bottom of the inner wall of the calcining shell. Preferably, the middle end outer wall of the rotating shaft is fixedly connected with a reciprocating screw rod, one end outer wall of the reciprocating screw rod is in threaded connection with a threaded plate, one side of the threaded plate penetrates through and is in sliding connection with a limiting rod, and one end of the limiting rod is fixedly connected with one side of the inner wall of the calcination shell. Preferably, the lateral wall of screw thread board is provided with the purification subassembly, the purification subassembly includes the horizontal pole of fixed connection in screw thread board one side, the one end fixedly connected with piston board of keeping away from the screw thread board of horizontal pole, the outer wall sliding connection of piston board has the dysmorphism shell. Preferably, one side of special-shaped shell fixed connection is in the outer wall one side of calcining the shell, inner wall one side intercommunication of special-shaped shell has the return bend, the one end outer wall intercommunication of return bend has first check valve, the one end intercommunication that the return bend kep