Processing equipment for molybdenum concentrate

Abstract

The invention relates to the technical field of molybdenum concentrate processing, and discloses molybdenum concentrate processing equipment which comprises a supporting frame, a control panel is fixedly installed on the outer wall of the supporting frame, triangular supporting plates are fixedly assembled on the outer walls of the two sides of the supporting frame, and a Hall sensor is fixedly assembled on the outer wall of the side, close to the control panel, of the supporting frame. A reactor is arranged at the top of the supporting frame, and a metal shielding layer is fixedly mounted on the outer wall of the reactor. Microwave heating is used as a main part and piezoelectric ceramic ultrasonic generator anti-caking is used as an auxiliary part, magnetic field dispersion improves fluidization quality and microwave heating uniformity, and mechanical action of the piezoelectric ceramic ultrasonic generator promotes fresh surface exposure of molybdenum concentrate materials and accelerates oxidation reaction, so that roasting hot air is more uniform, and roasting quality is improved. Meanwhile, heating can be conducted from the interior of the materials, the problem that traditional external heating is not uniform is thoroughly solved, sintering among particles can be effectively prevented, and it is guaranteed that the molybdenum concentrate materials are heated uniformly and the product quality is consistent.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of molybdenum concentrate processing, in particular to a molybdenum concentrate processing equipment. BACKGROUND

[0002] Molybdenum concentrate processing needs to go through multiple steps, usually involving roasting, leaching, purification steps, each step needs specific equipment support.

[0003] The traditional molybdenum concentrate processing equipment has the following problems in the roasting process: 1. There is a problem of uneven temperature distribution and easy caking, and it is difficult to ensure uniform heating of molybdenum concentrate materials and consistency of product quality; 2. In the roasting process, uneven external heating causes sintering between particles, which causes blockage, and the reaction rate cannot be accurately controlled; 3. When processing molybdenum concentrate, the particles containing iron impurities in the raw materials produce micro-vibration, which may cause agglomeration, making it difficult to ensure fluidization quality and uniformity of heating; Therefore, the above problems need to be improved. SUMMARY

[0004] The present application provides a molybdenum concentrate processing equipment to solve the problems raised in the background art.

[0005] The present application provides the following technical scheme: a molybdenum concentrate processing equipment, comprising a support frame, a control panel is fixedly installed on the outer wall of the support frame, triangular support plates are fixedly assembled on the outer walls of both sides of the support frame, a Hall sensor is fixedly assembled on the outer wall of one side of the support frame close to the control panel, a reactor is provided on the top of the support frame, a metal shielding layer is fixedly installed on the outer wall of the reactor, a magnetic field auxiliary dispersion assembly is provided on the outer wall of the metal shielding layer, auxiliary air inlets are formed on the outer walls of the reactor and the metal shielding layer, an auxiliary fluidized roasting assembly is provided on the inner wall of the reactor, a piezoelectric ceramic ultrasonic generator is fixedly embedded on the inner wall of the reactor, an air inlet pipe is installed on the bottom of the reactor, a top cover is installed on the top of the reactor, a lap joint handle is fixedly installed on the outer walls of both sides of the reactor, and a bottom plate is fixedly assembled on the outer wall of the support frame.

[0006] As a preferred technical scheme of the present application: the reactor is prepared by silicon nitride ceramic, the number of piezoelectric ceramic ultrasonic generators is several, and every three piezoelectric ceramic ultrasonic generators are arranged in a ring shape above the auxiliary fluidized calcination assembly, the piezoelectric ceramic ultrasonic generators are arranged in an array on the inner wall of the reactor, and the piezoelectric ceramic ultrasonic generators are electrically connected with the control panel, the piezoelectric ceramic ultrasonic generator adopts a sandwich type piezoelectric transducer, the resonant frequency is 28 kHz, the power of each transducer is 100-150 W, the calcination furnace is electrically connected with the control panel, and the lap handle is located at the top of the triangular supporting plate.

[0007] As a preferred technical scheme of the present application: the magnetic field auxiliary dispersion assembly comprises a servo motor, a rotating shaft is fixedly installed on the power output shaft of the servo motor, a driving gear is fixedly assembled at the top of the rotating shaft, a driven gear ring is engaged with the outer wall of the driving gear, a rotating ring is fixedly assembled at the bottom of the driven gear ring, a neodymium-iron-boron permanent magnet is fixedly inlaid on the outer wall of the rotating ring, and the rotating rings are connected through connecting plates.

[0008] As a preferred technical scheme of the present application: the servo motor is electrically connected with the control panel, the servo motor is fixedly installed at the top of the bottom plate, the number of rotating rings is five, the five rotating rings are uniformly sleeved on the outer wall of the metal shielding layer, the rotating ring rotates on the outer wall of the metal shielding layer, the neodymium-iron-boron permanent magnets are arranged in a Halbach array around the outer wall of the reactor, the rotating speed of the servo motor is 5-60 r / min, the inner wall of the neodymium-iron-boron permanent magnet is filled with ferroferric oxide nanoparticles, the particle size of the ferroferric oxide is 50-100 nm, and the surface of the neodymium-iron-boron permanent magnet is coated with a silica protective layer.

[0009] As a preferred technical scheme of the present application: the auxiliary fluidized calcination assembly comprises a mounting seat, a porous distribution plate is clamped on the inner wall of the mounting seat, a microwave generator is inlaid in the inner cavity of the porous distribution plate, one end of a circular waveguide tube is fixedly assembled on the output end of the microwave generator, a reaction cavity is installed on the other end of the circular waveguide tube, a control valve is arranged on the outer wall of the circular waveguide tube, a reaction cavity is formed at the top of the porous distribution plate, a limiting rod is sleeved on the inner wall of the reaction cavity, a wind cap is fixedly installed at the top of the limiting rod, a sealing assembly is arranged on the end of the circular waveguide tube away from the mounting seat, an expansion cavity is installed on the end of the porous distribution plate away from the mounting seat, and a overflow weir is slidably connected on the inner wall of the expansion cavity.

[0010] As a preferred technical scheme of the present application: the number of the reaction cavities, the limiting rods, the air caps and the circular waveguides is nine, the microwave generator is electrically connected with the control panel, the diameter of the reaction cavity is larger than that of the limiting rod, the diameter of the air cap is larger than that of the reaction cavity, the position of the sealing assembly corresponds to the position of the center of the expansion cavity, the number of the auxiliary fluidized roasting assemblies is four, and the four auxiliary fluidized roasting assemblies are alternately distributed on the inner wall of the reactor, the mounting seat is fixedly installed on the inner wall of the reactor, the number of the reaction cavities is several, and the several reaction cavities are uniformly distributed on the top of the porous distribution plate, and the spacing between the reaction cavities is 100-150 mm.

[0011] As a preferred technical scheme of the present application: the number of the control valves is eight, and the eight control valves are respectively installed on the outer wall of the circular waveguide away from the sealing assembly, the control valve is electrically connected with the control panel, the end of the circular waveguide away from the microwave generator is located in the inner cavity of the reaction cavity, and the gap exists between the limiting rod and the reaction cavity, and the number of the microwave generators is four.

[0012] As a preferred technical scheme of the present application: the cross section of the overflow weir is trapezoidal, and the bottom of the overflow weir is chamfered, the inner wall of the expansion cavity is prepared by silicon nitride, and the inner cavity of the expansion cavity is communicated with the inner wall of the separate circular waveguide.

[0013] As a preferred technical scheme of the present application: the sealing assembly comprises a fixing seat, the outer wall of the fixing seat is fixedly installed with a limiting seat, the inner wall of the limiting seat is fixedly embedded with a micro motor, the power output shaft of the micro motor is fixedly assembled with a disc, one end of the outer wall of the disc is installed with a handle, and the other end of the handle is fixedly assembled with a plug-in rod, the plug-in rod is clamped with a rotating disc through a plug-in hole, the end of the rotating disc away from the handle is fixedly installed with a fixing rod, the outer wall of the fixing rod is sleeved with an arc-shaped plate, the outer wall of the fixing seat is provided with a sliding groove, and one end of the porous distribution plate close to the expansion cavity is provided with a placing groove.

[0014] As a preferred technical scheme of the present application: the number of the arc-shaped plates is five, and the combined diameter of the five arc-shaped plates is matched with the inner diameter of the circular waveguide, the end of the rotating disc away from the limiting seat is matched with the outer wall of the circular waveguide, the micro motor is electrically connected with the control panel, and the fixing seat is fixedly installed on the inner wall of the placing groove.

[0015] The present application has the following beneficial effects: 1. The molybdenum concentrate processing equipment, through microwave heating as the main piezoelectric ceramic ultrasonic generator anti-caking as auxiliary, magnetic field dispersion improves the fluidization quality, improves the uniformity of microwave heating, and the piezoelectric ceramic ultrasonic generator can promote the fresh surface exposure of molybdenum concentrate material during work, speed up the oxidation reaction, make the roasting hot gas more uniform, and at the same time can heat from the inside of the material, completely solve the uneven problem of traditional external heating, and can effectively prevent the sintering between particles, ensure that the molybdenum concentrate material is heated uniformly, and the consistency of product quality.

[0016] 2. The molybdenum concentrate processing equipment, through the characteristic that the neodymium-iron-boron permanent magnet is arranged in Halbach array around the outer wall of the reactor, the internal magnetic field can be enhanced, at this time the control panel emits signals, the servo motor starts, the rotating shaft rotates, and can drive the driving gear to rotate synchronously, the driven gear ring can drive the rotating ring to rotate on the outer wall of the metal shielding layer, and through the connecting plate, a plurality of neodymium-iron-boron permanent magnets can rotate on the outer wall of the metal shielding layer. The magnetic particles in the molybdenum concentrate material make the neodymium-iron-boron permanent magnet rotate, and the magnetic field can make the magnetic particles produce tumbling motion, which can drive the surrounding material, so that the uneven distribution of magnetic lines causes the reciprocating motion of particles, and the magnetic field dispersion improves the fluidization quality and improves the heating uniformity.

[0017] 3. The molybdenum concentrate processing equipment, the microwave generator is started under the control of the control panel, and the corresponding eight circular waveguides are in a closed state through the control valve, and the five arc-shaped plates slide on the inner wall of the chute, so that the circular waveguide and the expansion cavity are in communication state, so that the microwave generator can heat the gas in the expansion cavity to expand rapidly, and the expansion pressure pushes the overflow weir to rise upward, and by adjusting the microwave power of the microwave generator, the lifting speed rate rises to produce different pressures, so that the overflow weir can be lifted to different heights, thereby controlling the flow speed of hot gas, and each layer can independently control the temperature, effectively avoiding local overheating, and ensuring the mixing of molybdenum concentrate materials between layers. The slight vibration generated during the rising of the overflow weir can break the small agglomerates formed, so that it can control the temperature and also play the role of crushing the agglomerates. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application; Figure 2 It is another side structure schematic diagram of the present application; Figure 3 It is a schematic diagram of the internal structure of the present application; Figure 4 It is a schematic diagram of the cross-sectional structure of the present application; Figure 5 It is a schematic diagram of the plane structure of the present application; Figure 6The auxiliary fluidized roasting assembly structure diagram of the application; Figure 7 The limiting rod structure diagram of the application; Figure 8 The auxiliary fluidized roasting assembly structure diagram of the application; Figure 7 The enlarged structure diagram of A in the application; Figure 9 The expansion cavity structure diagram of the application; Figure 10 The auxiliary fluidized roasting assembly structure diagram of the application; Figure 9 The enlarged structure diagram of B in the application; Figure 11 The sealing assembly structure diagram of the application; Figure 12 The magnetic field auxiliary dispersion assembly structure diagram of the application.

[0019] In the figure: 1, support frame; 2, control panel; 3, triangular support plate; 4, Hall sensor; 5, reactor; 6, magnetic field auxiliary dispersion assembly; 7, auxiliary air inlet; 8, auxiliary fluidized roasting assembly; 9, piezoelectric ceramic ultrasonic generator; 10, metal shielding layer; 11, air inlet pipe; 12, top cover; 13, roasting furnace; 14, lap handle; 15, bottom plate; 601, servo motor; 602, rotating shaft; 603, drive gear; 604, driven gear ring; 605, rotating ring; 606, neodymium iron boron permanent magnet; 607, connecting plate; 801, mounting seat; 802, porous distribution plate; 803, microwave generator; 804, circular waveguide; 805, control valve; 806, reaction cavity; 807, limiting rod; 808, air cap; 809, sealing assembly; 810, expansion cavity; 811, overflow weir; 8091, fixed seat; 8092, limiting seat; 8093, micro motor; 8094, disc; 8095, handle; 8096, plug-in rod; 8097, plug-in hole; 8098, rotating disc; 8099, fixed rod; 80910, arc plate; 80911, sliding groove; 80912, placement groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the application.

[0021] Please refer to Figure 1 - Figure 12The utility model provides a molybdenum concentrate processing equipment, including support frame 1, the outer wall fixed mounting of support frame 1 has control panel 2, both sides outer walls of support frame 1 are fixedly equipped with triangular support plate 3, the outer wall fixed assembly of support frame 1 is close to control panel 2 one side and is equipped with hall sensor 4, the top of support frame 1 is equipped with reactor 5, the outer wall fixed mounting of reactor 5 has metal shielding layer 10, the outer wall of metal shielding layer 10 is equipped with magnetic field auxiliary dispersion subassembly 6, the outer wall of reactor 5 and metal shielding layer 10 all are equipped with auxiliary air inlet 7, the inner wall of reactor 5 is equipped with auxiliary fluidized roasting subassembly 8, the inner wall fixed inlay of reactor 5 has piezoelectric ceramic ultrasonic generator 9, the bottom of reactor 5 is installed and is equipped with air pipe 11, the top of reactor 5 is installed and is equipped with top cover 12, the bottom of air pipe 11 is installed and is equipped with roasting furnace 13, the outer wall fixed mounting of both sides of reactor 5 has lap joint handle 14, the outer wall fixed assembly of support frame 1 is equipped with bottom plate 15.

[0022] In the above structure, through the setting of support frame 1, the placement of the device can be kept stable, and due to the setting of triangular support plate 3 and the characteristic that the top of triangular support plate 3 is lapped with the outer wall of lap joint handle 14, reactor 5 can be placed on the top of support frame 1 through lap joint handle 14, and through the signal emission of control panel 2, roasting furnace 13 can be started, so that after roasting furnace 13 starts to work, hot gas can be filled to the inner wall of reactor 5 through air pipe 11, thereby achieving the purpose of processing molybdenum concentrate.

[0023] In a preferred embodiment: reactor 5 is prepared from silicon nitride ceramic, the number of piezoelectric ceramic ultrasonic generators 9 is several, and every three piezoelectric ceramic ultrasonic generators 9 are arranged in a ring shape above auxiliary fluidized roasting subassembly 8, several piezoelectric ceramic ultrasonic generators 9 are arranged in an array on the inner wall of reactor 5, and piezoelectric ceramic ultrasonic generators 9 are electrically connected with control panel 2, piezoelectric ceramic ultrasonic generators 9 adopt sandwich type piezoelectric transducers, the resonant frequency is 28 kHz, the power of each transducer is 100-150 W, roasting furnace 13 is electrically connected with control panel 2, and lap joint handle 14 is located on the top of triangular support plate 3.

[0024] In the structure, the piezoceramics ultrasonic generator 9 can be started by the signal emitted by the control panel 2, the cavitation effect generated by the piezoceramics ultrasonic generator 9 in the material can continuously destroy the sintering neck formed in the early stage, the acoustic streaming effect promotes the movement of particles, prevents static contact sintering, and the piezoceramics ultrasonic generator 9 can form a three-dimensional sound field covering the entire reaction zone due to the characteristic that the piezoceramics ultrasonic generators 9 are arranged in an array on the inner wall of the reactor 5, the piezoceramics ultrasonic generator 9 can conduct vibration to the inside of the reactor 5 through the titanium alloy amplitude lever, and the piezoceramics ultrasonic generator 9 can crush the agglomerated material at the location prone to agglomeration when started, so that the range of action is expanded.

[0025] In a preferred embodiment: the magnetic field auxiliary dispersion assembly 6 comprises a servo motor 601, the power output shaft of the servo motor 601 is fixedly installed with a rotating shaft 602, the top of the rotating shaft 602 is fixedly assembled with a driving gear 603, the outer wall of the driving gear 603 is engaged with a driven gear ring 604, the bottom of the driven gear ring 604 is fixedly assembled with a rotating ring 605, the outer wall of the rotating ring 605 is fixedly embedded with a neodymium iron boron permanent magnet 606, and the rotating ring 605 is connected with the rotating ring 605 through a connecting plate 607.

[0026] In the structure, the rotating ring 605 drives the plurality of neodymium iron boron permanent magnets 606 to rotate on the outer wall of the metal shielding layer 10, so that the alternating magnetic field causes the particles containing iron impurities to produce micro-vibration, preventing agglomeration, and the rotating speed of the servo motor 601 can be adjusted, so that the magnetic field strength and the rotating frequency can be adjusted, so that the device can adapt to different molybdenum concentrates, and the processing is more comprehensive.

[0027] In a preferred embodiment: the servo motor 601 is electrically connected with the control panel 2, the servo motor 601 is fixedly installed on the top of the bottom plate 15, the number of the rotating ring 605 is five groups, and the five groups of rotating rings 605 are uniformly sleeved on the outer wall of the metal shielding layer 10, the rotating ring 605 rotates on the outer wall of the metal shielding layer 10, the neodymium iron boron permanent magnet 606 is arranged in a Halbach array around the outer wall of the reactor 5, the rotating speed of the servo motor 601 is 5-60r / min, the inner wall of the neodymium iron boron permanent magnet 606 is filled with four-iron oxide nanoparticles, the particle size of the four-iron oxide is 50-100nm, and the surface of the neodymium iron boron permanent magnet 606 is coated with a silica protective layer.

[0028] In the structure, the neodymium-iron-boron permanent magnet 606 is arranged in a Halbach array around the outer wall of the reactor 5, which can enhance the internal magnetic field. When the control panel 2 emits a signal, the servo motor 601 is started to rotate the rotating shaft 602, which can drive the driving gear 603 to rotate synchronously, so that the driven gear ring 604 can drive the rotating ring 605 to rotate on the outer wall of the metal shielding layer 10, and the plurality of neodymium-iron-boron permanent magnets 606 can rotate on the outer wall of the metal shielding layer 10 through the connecting plate 607. Due to the rotation of the neodymium-iron-boron permanent magnet 606, the magnetic field causes the magnetic particles to produce a flipping motion, which drives the surrounding materials. The uneven distribution of magnetic lines causes the reciprocating motion of the particles, and the magnetic field can be dispersed to improve the fluidization quality and improve the heating uniformity.

[0029] In a preferred embodiment, the auxiliary fluidized roasting assembly 8 comprises a mounting seat 801, and the inner wall of the mounting seat 801 is clamped with a porous distribution plate 802. The inner cavity of the porous distribution plate 802 is inlaid with a microwave generator 803. One end of the microwave generator 803 is fixedly assembled with one end of a circular waveguide 804, and the other end of the circular waveguide 804 is provided with a reaction cavity 806. The outer wall of the circular waveguide 804 is provided with a control valve 805. The top of the porous distribution plate 802 is provided with the reaction cavity 806. The inner wall of the reaction cavity 806 is sleeved with a limiting rod 807. The top of the limiting rod 807 is fixedly installed with a wind cap 808. The end of the circular waveguide 804 away from the mounting seat 801 is provided with a sealing assembly 809. The end of the porous distribution plate 802 away from the mounting seat 801 is provided with an expansion cavity 810. The inner wall of the expansion cavity 810 is slidably connected with an overflow weir 811.

[0030] In the structure, the wind cap 808 and the limiting rod 807 are arranged, so that the hot gas can blow the reaction cavity 806 upward when passing through the reaction cavity 806, so that a gap is formed between the reaction cavity 806 and the top of the porous distribution plate 802, so that the gas can pass through the reaction cavity 806, and the stable fluidization can be effectively ensured. Due to the arrangement of the limiting rod 807 and the wind cap 808, the anti-blocking back-blowing function can be achieved, which can effectively prolong the service life of the device and prevent the side wall effect.

[0031] In a preferred embodiment: the number of reaction cavities 806, limiting rods 807, air caps 808 and circular waveguides 804 is nine, the microwave generator 803 is electrically connected with the control panel 2, the diameter of the reaction cavity 806 is larger than that of the limiting rod 807, the diameter of the air cap 808 is larger than that of the reaction cavity 806, the position of the sealing assembly 809 corresponds to that of the center of the expansion cavity 810, the number of auxiliary fluidized roasting assemblies 8 is four, and the four auxiliary fluidized roasting assemblies 8 are alternately distributed on the inner wall of the reactor 5, the mounting seat 801 is fixedly installed on the inner wall of the reactor 5, the number of reaction cavities 806 is several, and the several reaction cavities 806 are uniformly distributed on the top of the porous distribution plate 802, and the distance between the reaction cavities 806 is 100-150 mm.

[0032] In the above structure, the microwave generator 803 can be started by the control panel 2 emitting a signal, so that the microwave generator 803 can heat from the inside of the molybdenum concentrate material, which can completely solve the problem of uneven heating of traditional external heating, and the MoS2 particles can be quickly oxidized to form a protective layer by heating with the microwave generator 803, preventing sintering between the particles, and the reaction rate can be accurately controlled by adjusting the microwave frequency and power density of the microwave generator 803.

[0033] In a preferred embodiment: the number of control valves 805 is eight, and the eight control valves 805 are respectively installed on the outer wall of the circular waveguide 804 away from the sealing assembly 809, the control valve 805 is electrically connected with the control panel 2, the end of the circular waveguide 804 away from the microwave generator 803 is located in the inner cavity of the reaction cavity 806, and there is a gap between the limiting rod 807 and the reaction cavity 806, and the number of microwave generators 803 is four.

[0034] In the above structure, the four microwave generators 803 are distributed in the inner cavity of the porous distribution plate 802, and the unit power of each microwave generator 803 is 2-5 kW, and the microwave generator 803 can be independently controlled, and because the output end of the microwave generator 803 is connected with the inner cavity of the reaction cavity 806 through the circular waveguide 804, and because the metal shielding layer 10 is metal, the leakage of microwave can be effectively prevented, so that the unreacted MoS2 core preferentially absorbs microwave energy, and the formed MoO3 does not overheat, thereby forming an internal-external temperature gradient, which is conducive to the diffusion of oxygen.

[0035] In a preferred embodiment: the cross section of the overflow weir 811 is trapezoidal, and the bottom of the overflow weir 811 is chamfered, the inner wall of the expansion cavity 810 is prepared by silicon nitride, and the inner cavity of the expansion cavity 810 is connected with the inner wall of the separate circular waveguide 804.

[0036] In the structure, the microwave generator 803 is started under the control of the control panel 2, and the corresponding eight circular waveguides 804 are closed by controlling the valve 805, so that the microwave generator 803 can rapidly expand the gas in the expansion chamber 810 after microwave heating, and the expansion pressure can push the overflow weir 811 to rise upward, and by adjusting the microwave power of the microwave generator 803, the lifting temperature rate is increased to generate different pressures, so that the overflow weir 811 can be lifted to different heights, thereby the flow speed of the hot gas can be controlled, and each layer can be independently controlled temperature, effectively avoiding local overheating, and ensuring the mixing of the molybdenum concentrate materials between the layers, and the slight vibration generated during the rising of the overflow weir 811 can break the small lumps formed, so that it can control temperature and also play a role in crushing lumps, and when the microwave generator 803 stops working, the inner cavity of the expansion chamber 810 can make the overflow weir 811 reset after cooling, and be reused.

[0037] In a preferred embodiment: the sealing assembly 809 comprises a fixed seat 8091, the outer wall of the fixed seat 8091 is fixedly installed with a limiting seat 8092, the inner wall of the limiting seat 8092 is fixedly embedded with a micro motor 8093, the power output shaft of the micro motor 8093 is fixedly assembled with a disc 8094, one end of the outer wall of the disc 8094 is installed with a handle 8095, the other end of the handle 8095 is fixedly assembled with a plug-in rod 8096, the plug-in rod 8096 is clamped with a rotating disc 8098 through a plug-in hole 8097, the end of the rotating disc 8098 away from the handle 8095 is fixedly installed with a fixed rod 8099, the outer wall of the fixed rod 8099 is sleeved with an arc plate 80910, the outer wall of the fixed seat 8091 is provided with a sliding groove 80911, and the end of the multi-hole distribution plate 802 close to the expansion chamber 810 is provided with a placing groove 80912.

[0038] In a preferred embodiment: the number of the arc plate 80910 is five, and the combined diameter of the five arc plates 80910 is matched with the inner diameter of the circular waveguide 804, the end of the rotating disc 8098 away from the limiting seat 8092 is matched with the outer wall of the circular waveguide 804, the micro motor 8093 is electrically connected with the control panel 2, and the fixed seat 8091 is fixedly installed on the inner wall of the placing groove 80912.

[0039] In the structure, the micro motor 8093 is started by the control panel 2 to drive the disc 8094 to rotate and drive the handle 8095 to rotate, the disc 8098 is driven to rotate through the plug hole 8097, the five arc-shaped plates 80910 are driven to slide on the inner wall of the sliding groove 80911, the circular waveguide 804 and the expansion cavity 810 are communicated or not communicated, the distance between the five arc-shaped plates 80910 is different by different rotating angles, the flow of the airflow is adjusted, and the overflow weir 811 is lifted or not lifted and the lifting height is controlled.

[0040] Working principle: when the device is used, the molybdenum concentrate raw material to be processed is placed on the inner wall of the reactor 5, and the auxiliary fluidized roasting assembly 8 is arranged to make the molybdenum concentrate raw material flow layer by layer downward, the hot gas passes through the auxiliary fluidized roasting assembly 8 from the bottom to the top through the gas inlet pipe 11 after the roasting furnace 13 is started by the control panel 2, and the molybdenum concentrate raw material is roasted. At this time, the piezoelectric ceramic ultrasonic generator 9 is started by the control panel 2 to continuously destroy the sintering neck formed in the early stage by the cavitation effect generated by the piezoelectric ceramic ultrasonic generator 9 in the material, the acoustic streaming effect promotes the movement of particles to prevent static contact sintering, and the piezoelectric ceramic ultrasonic generator 9 is arranged in an array on the inner wall of the reactor 5 to form a three-dimensional sound field covering the entire reaction zone, so that the piezoelectric ceramic ultrasonic generator 9 can transmit vibration to the inside of the reactor 5 through the titanium alloy amplitude rod, and the piezoelectric ceramic ultrasonic generator 9 can be broken at the position prone to caking when started. The micro motor 8093 is started by the control panel 2 to drive the disc 8094 to rotate and drive the handle 8095 to rotate, the disc 8098 is driven to rotate through the plug hole 8097, the five arc-shaped plates 80910 are driven to slide on the inner wall of the sliding groove 80911, the circular waveguide 804 and the expansion cavity 810 are communicated or not communicated, the distance between the five arc-shaped plates 80910 is different by different rotating angles, the flow of the airflow is adjusted, and the overflow weir 811 is lifted or not lifted and the lifting height is controlled. In this process, the microwave generator 803 is started under the control of the control panel 2, so that the control valve 805 can close the corresponding eight circular waveguides 804, so that the microwave generator 803 can quickly expand the gas in the expansion chamber 810 after microwave heating, and the expansion pressure can push the overflow weir 811 to rise, and by adjusting the microwave power of the microwave generator 803, the temperature rising rate is raised to produce different pressures, so that the overflow weir 811 can be lifted to different heights, thereby the flow rate of hot gas can be controlled, and each layer can be independently controlled temperature, effectively avoiding local overheating, and ensuring the mixing of molybdenum concentrate materials between layers, and the slight vibration generated during the rising of the overflow weir 811 can break the small lumps formed, so that it can control temperature and also play a role in crushing lumps; And by the setting of the air cap 808 and the limiting rod 807, the hot gas can blow the reaction chamber 806 upward when passing through the reaction chamber 806, so that there is a gap between the reaction chamber 806 and the top of the porous distribution plate 802, so that the gas can pass through the reaction chamber 806 and can effectively ensure stable fluidization, and because of the setting of the limiting rod 807 and the air cap 808, it can have the anti-blocking function of blowing back, so that the hot gas can uniformly spray the molybdenum concentrate raw materials, thereby ensuring uniform heating of the materials, and by transmitting signals through the control panel 2, the microwave generator 803 can be started, so that the microwave generator 803 can heat from the inside of the molybdenum concentrate material, which can completely solve the problem of uneven heating of traditional external heating, and by heating through the microwave generator 803, the MoS control panel 2 particle surface can be quickly oxidized to form a protective layer, preventing sintering between particles, and by adjusting the microwave frequency and power density of the microwave generator 803, the reaction rate can be accurately controlled; When roasting, the neodymium-iron-boron permanent magnet 606 arranged in a Halbach array around the outer wall of the reactor 5 can enhance the internal magnetic field, at this time the control panel 2 transmits signals, the servo motor 601 is started, the rotating shaft 602 rotates, and the driving gear 603 rotates synchronously, the driven gear ring 604 drives the rotating ring 605 to rotate on the outer wall of the metal shielding layer 10, and through the connecting plate 607, multiple groups of neodymium-iron-boron permanent magnets 606 can rotate on the outer wall of the metal shielding layer 10, and because the neodymium-iron-boron permanent magnet 606 rotates, the magnetic field makes the magnetic particles produce a flipping motion, driving the surrounding materials, so that the uneven distribution of magnetic lines causes the reciprocating motion of the particles, and at the same time, the magnetic field dispersion can improve the fluidization quality and improve the heating uniformity, thereby the device can complete the roasting processing work of the molybdenum concentrate material.

[0041] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the scope of the present application is not limited to these specific embodiments.

[0042] While the embodiments of the application have been shown and described herein, it will be understood by those of ordinary skill in the art that various changes, modifications, alternatives, and variations can be made to the embodiments without departing from the spirit and scope of the application, which is defined by the claims and their equivalents.

Claims

1. A processing plant for molybdenum concentrates comprising a support frame (1), characterized in that: The outer wall of the support frame (1) is fixedly installed with a control panel (2), both sides of the outer wall of the support frame (1) are fixedly provided with a triangular support plate (3), the side of the support frame (1) close to the control panel (2) is fixedly provided with a Hall sensor (4), the top of the support frame (1) is provided with a reactor (5), the outer wall of the reactor (5) is fixedly installed with a metal shielding layer (10), the outer wall of the metal shielding layer (10) is provided with a magnetic field auxiliary dispersion assembly (6), the outer walls of the reactor (5) and the metal shielding layer (10) are both provided with an auxiliary air inlet (7), the inner wall of the reactor (5) is provided with an auxiliary fluidized roasting assembly (8), the inner wall of the reactor (5) is fixedly embedded with a piezoelectric ceramic ultrasonic generator (9), the bottom of the reactor (5) is installed with an air inlet pipe (11), the top of the reactor (5) is installed with a top cover (12), the bottom of the air inlet pipe (11) is installed with a roasting furnace (13), both sides of the outer wall of the reactor (5) are fixedly installed with a lap handle (14), and the outer wall of the support frame (1) is fixedly provided with a bottom plate (15).

2. A molybdenum concentrate processing plant as claimed in claim 1, characterized in that: The reactor (5) is prepared from silicon nitride ceramic, the number of piezoelectric ceramic ultrasonic generators (9) is several, and every three piezoelectric ceramic ultrasonic generators (9) are arranged in a ring shape above the auxiliary fluidized roasting assembly (8), a plurality of piezoelectric ceramic ultrasonic generators (9) are arranged in an array on the inner wall of the reactor (5), and the piezoelectric ceramic ultrasonic generators (9) are electrically connected with the control panel (2), the piezoelectric ceramic ultrasonic generators (9) adopt sandwich piezoelectric transducers, the resonant frequency is 28 kHz, the power of each transducer is 100-150 W, the roasting furnace (13) is electrically connected with the control panel (2), and the lap handle (14) is located at the top of the triangular support plate (3).

3. A molybdenum concentrate processing plant as claimed in claim 1, characterized in that: The magnetic field auxiliary dispersion assembly (6) comprises a servo motor (601), a rotating shaft (602) is fixedly installed on the power output shaft of the servo motor (601), a drive gear (603) is fixedly installed on the top of the rotating shaft (602), a driven gear ring (604) is engaged on the outer wall of the drive gear (603), a rotating ring (605) is fixedly installed on the bottom of the driven gear ring (604), a neodymium iron boron permanent magnet (606) is fixedly embedded on the outer wall of the rotating ring (605), and the rotating ring (605) and the rotating ring (605) are connected through a connecting plate (607).

4. A molybdenum concentrate processing plant as claimed in claim 3, characterized in that: The servo motor (601) is electrically connected with the control panel (2), the servo motor (601) is fixedly installed on the top of the bottom plate (15), the number of the rotating ring (605) is five groups, and the five groups of rotating rings (605) are uniformly sleeved on the outer wall of the metal shielding layer (10), the rotating ring (605) rotates on the outer wall of the metal shielding layer (10), the neodymium-iron-boron permanent magnet (606) is arranged in a Halbach array around the outer wall of the reactor (5), the rotating speed of the servo motor (601) is 5-60r / min, the inner wall of the neodymium-iron-boron permanent magnet (606) is filled with four-iron oxide nanoparticles, and the particle size of the four-iron oxide is 50-100nm, and the surface of the neodymium-iron-boron permanent magnet (606) is coated with a silica protective layer.

5. A molybdenum concentrate processing plant as claimed in claim 1, wherein: The auxiliary fluidized roasting assembly (8) comprises a mounting seat (801), the inner wall of the mounting seat (801) is clamped with a porous distribution plate (802), the inner cavity of the porous distribution plate (802) is inlaid with a microwave generator (803), one end of the output end of the microwave generator (803) is fixedly assembled with a circular waveguide (804), the other end of the circular waveguide (804) is provided with a reaction cavity (806), the outer wall of the circular waveguide (804) is provided with a control valve (805), the top of the porous distribution plate (802) is provided with a reaction cavity (806), the inner wall of the reaction cavity (806) is sleeved with a limiting rod (807), the top of the limiting rod (807) is fixedly installed with a wind cap (808), one end of the circular waveguide (804) away from the mounting seat (801) is provided with a sealing assembly (809), one end of the porous distribution plate (802) away from the mounting seat (801) is provided with an expansion cavity (810), and the inner wall of the expansion cavity (810) is slidably connected with an overflow weir (811).

6. A molybdenum concentrate processing plant as claimed in claim 5, characterised in that: The number of the reaction cavity (806), the limiting rod (807), the wind cap (808) and the circular waveguide (804) is nine, the microwave generator (803) is electrically connected with the control panel (2), the diameter of the reaction cavity (806) is greater than the diameter of the limiting rod (807), the diameter of the wind cap (808) is greater than the diameter of the reaction cavity (806), the position of the sealing assembly (809) corresponds to the position of the center of the expansion cavity (810), the number of the auxiliary fluidized roasting assembly (8) is four groups, and the four groups of auxiliary fluidized roasting assemblies (8) are alternately distributed on the inner wall of the reactor (5), the mounting seat (801) is fixedly installed on the inner wall of the reactor (5), the number of the reaction cavity (806) is several, and the several reaction cavities (806) are uniformly distributed on the top of the porous distribution plate (802), and the spacing between the reaction cavities (806) is 100-150mm.

7. A molybdenum concentrate processing plant as claimed in claim 6, characterised in that: The quantity of the control valve (805) is eight, and eight control valves (805) are installed on the outer wall of the circular waveguide (804) away from the sealing assembly (809), the control valve (805) is electrically connected with the control panel (2), one end of the circular waveguide (804) away from the microwave generator (803) is located in the inner cavity of the reaction cavity (806), and there is a gap between the limiting rod (807) and the reaction cavity (806), and the quantity of the microwave generator (803) is four.

8. A molybdenum concentrate processing plant as claimed in claim 7, characterised in that: The cross section of the overflow weir (811) is trapezoidal, and the bottom of the overflow weir (811) is chamfered, the inner wall of the expansion cavity (810) is prepared by silicon nitride, and the inner cavity of the expansion cavity (810) is communicated with the inner wall of the separate circular waveguide (804).

9. A molybdenum concentrate processing plant as claimed in claim 8, characterised in that: The sealing assembly (809) comprises a fixing seat (8091), the outer wall of the fixing seat (8091) is fixedly installed with a limiting seat (8092), the inner wall of the limiting seat (8092) is fixedly embedded with a micro motor (8093), the power output shaft of the micro motor (8093) is fixedly assembled with a disc (8094), one end of the outer wall of the disc (8094) is installed with a handle (8095), the other end of the handle (8095) is fixedly assembled with a plug-in rod (8096), the plug-in rod (8096) is clamped with a rotating disc (8098) through a plug-in hole (8097), one end of the rotating disc (8098) away from the handle (8095) is fixedly installed with a fixing rod (8099), the outer wall of the fixing rod (8099) is sleeved with an arc plate (80910), the outer wall of the fixing seat (8091) is provided with a sliding groove (80911), and one end of the multi-hole distribution plate (802) close to the expansion cavity (810) is provided with a placing groove (80912).

10. A molybdenum concentrate processing plant as claimed in claim 9, wherein: The quantity of the arc plate (80910) is five, and the diameter of the five arc plates (80910) combined is matched with the inner diameter of the circular waveguide (804), one end of the rotating disc (8098) away from the limiting seat (8092) is attached with the outer wall of the circular waveguide (804), the micro motor (8093) is electrically connected with the control panel (2), and the fixing seat (8091) is fixedly installed on the inner wall of the placing groove (80912).

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