Energy-saving beryllium oxide processing device and processing method thereof

Abstract

The invention relates to the technical field of beryllium oxide material preparation, in particular to an energy-saving beryllium oxide processing device and a processing method thereof.The energy-saving beryllium oxide processing device comprises a centrifugal spray dryer, a conveying pipe, an atomizer, an impeller, a pressurizing assembly, a pressurizing plate, an adjusting assembly and a flow shielding plate; a drying chamber is formed in the centrifugal spray dryer, an air inlet is formed in the top end of the drying chamber, and a moving cavity communicating with the air inlet is formed in the inner side of the air inlet; a through hole is formed in the material conveying pipe and connected with the moving cavity, and an adjusting cavity is formed in the material conveying pipe; the atomizer is positioned below the conveying pipe; the impeller is located in the conveying pipe, the pressurizing assembly is located in the moving cavity, the pressurizing plate is slidably installed in the moving cavity, and the impeller pushes the pressurizing plate to slide through the pressurizing assembly; according to the energy-saving hot air drying device, unification of the feeding amount and hot air drying is achieved through rotary motion, the phenomenon that wet powder adheres to the wall is avoided, meanwhile, energy consumption of hot air is reduced, and the energy-saving effect is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of beryllium oxide material preparation, in particular to an energy-saving beryllium oxide processing device and a processing method thereof. Background Art

[0002] Beryllium oxide is a new type of ceramic material with excellent performance. It has the advantages of high temperature resistance, high hardness, good insulation and good thermal conductivity. Beryllium oxide is widely used in nuclear technology, vacuum electronics technology, microelectronics technology and special metallurgy. The sulfuric acid method is often used to produce beryllium oxide.

[0003] In the production process of beryllium oxide, the crystal structure of beryllium ore is first destroyed by roasting, and then the destroyed beryllium ore is acidified with sulfuric acid solution, and then purified to obtain pure beryllium hydroxide liquid, and then the beryllium hydroxide liquid is dried to obtain beryllium hydroxide, and the beryllium hydroxide is decomposed to generate beryllium oxide by high-temperature calcination. The drying of the above-mentioned beryllium hydroxide is usually processed by a centrifugal spray dryer, and the beryllium hydroxide liquid is pressurized and centrifugally sprayed through an atomizer, and the sprayed atomized particles are dried by hot air to obtain beryllium hydroxide, and then the beryllium hydroxide is sent to a calcining furnace to generate beryllium oxide.

[0004] In the actual production process, due to the different addition amounts of beryllium ore and various solutions, the water content in the produced beryllium hydroxide liquid is different. When the water content in the beryllium hydroxide liquid is high, the water will not evaporate enough during hot air drying, which will lead to incomplete drying and wet powder sticking to the wall. If the hot air is always at maximum power for drying, over-drying will occur, resulting in excessive energy consumption.

[0005] To this end, the prior art proposes a device for preventing materials from sticking to the wall of a centrifugal spray dryer. The device uses the airflow generated when hot air enters to reduce the occurrence of material sticking to the wall. At the same time, a material scraping device is arranged in the drying chamber to scrape off the material sticking to the wall to prevent the material from sticking to the inner wall. However, the problem of wet powder sticking to the wall due to insufficient hot air drying or excessive energy consumption due to excessive hot air drying has not been solved.

[0006] In view of this, we propose an energy-saving beryllium oxide processing device and a processing method thereof. Summary of the invention

[0007] The object of the present invention is to provide an energy-saving beryllium oxide processing device and a processing method thereof to solve the problems raised in the above background technology.

[0008] To achieve the above object, the present invention provides the following technical solutions: An energy-saving beryllium oxide processing device and a processing method thereof, comprising a centrifugal spray dryer, a feed pipe, an atomizer, an impeller, a supercharging component, a supercharging plate, an adjusting component and a baffle plate; a drying chamber is provided on the centrifugal spray dryer, an air inlet is provided on the top of the drying chamber, and a movable cavity connected to the air inlet is provided on the inner side of the air inlet; the feed pipe is installed at the center of the air inlet, a through hole is provided on the feed pipe to connect with the movable cavity, an adjusting cavity is provided on the feed pipe, and the adjusting cavity is located below the through hole; the atomizer is located below the feed pipe and is fixedly connected to the feed pipe. When the centrifugal spray dryer is in use, hot air is first introduced into the drying chamber through the air inlet to preheat the drying chamber, and then beryllium hydroxide liquid is transported to the atomizer through the feed pipe, pressurized and centrifugally ejected in the atomizer, and quickly dried under the hot air blown out from the air inlet, and falls into the discharge port at the bottom of the drying chamber; The impeller is located in the feed pipe, one end of the impeller extends into the moving cavity through the through hole, the booster assembly is located in the moving cavity, the booster plate is slidably installed in the moving cavity, when the feed pipe is fed, the impeller pushes the booster plate to slide through the booster assembly, when the beryllium hydroxide liquid enters the feed pipe, the liquid impacts the impeller, driving the impeller to rotate, with different feed amounts of the beryllium hydroxide liquid, the rotation speed of the impeller will also be different, and then the booster assembly pushes the booster plate to slide at different distances, the sliding of the booster plate will reduce the diameter of the air inlet, and then increase the pressure on the hot air in the air inlet, thereby increasing the flow speed of the hot air and enhancing the drying speed of the beryllium hydroxide liquid by the hot air; the regulating assembly is located in the regulating cavity, when the feed pipe is fed too much, the booster assembly pushes the baffle plate to extend through the regulating assembly.

[0009] Preferably, a spiral drainage groove is provided on the air inlet, which guides the hot air in the air inlet, causing the hot air to flow downward in a spiral shape, so that the hot air quickly fills the air inlet, ensuring that the hot air flows out evenly in the circumferential direction of the atomizer, thereby ensuring that the efficiency of hot air drying of the atomized particles sprayed by the atomizer remains consistent, thereby improving the drying quality.

[0010] Preferably, the impeller is provided with wavy patterns, which are used to enhance the stirring effect of the impeller on the beryllium hydroxide liquid, thereby promoting the fluidity of the beryllium hydroxide liquid, and avoiding the reduction of feed amount and affecting hot air drying due to insufficient fluidity of the beryllium hydroxide due to the small water content of the beryllium hydroxide.

[0011] Preferably, the boost assembly includes a centrifugal spring, a centrifugal plate, a push plate, a driving rack, a return spring, a driving wheel, a driven wheel, a driving disc and a push rod; the centrifugal spring is fixedly mounted on one end of the impeller located in the moving chamber; the centrifugal plate and the centrifugal spring are fixedly mounted; a push plate is provided on one side of the centrifugal plate, and when the beryllium hydroxide feed liquid enters from the feed pipe, the beryllium hydroxide feed liquid impacts the impeller to rotate, and the rotation of the impeller generates centrifugal force, and the centrifugal force is transmitted to the centrifugal plate through the centrifugal spring, and the centrifugal plate expands outward and contacts with the push plate, thereby pushing the push plate to slide; the push plate is fixedly connected to the driving rack, and the push plate is used to realize the transmission of motion and drive the driving rack to move synchronously; the driving rack is located below the centrifugal plate and is slidably connected to the moving chamber; a return spring is connected between one end of the driving rack and the inner wall of the moving chamber, and the return spring is used to realize the resetting of the driving rack after the feeding stops, and a push groove is provided at the other end of the driving rack; The driving wheel is located below the driving rack, and the driving wheel is divided into a transmission section and a driving section, and the transmission section is meshed with the driving rack. The driving rack slides horizontally under the action of the push plate, and the driving rack meshes with the transmission section of the driving wheel, thereby driving the driving wheel as a whole to rotate, so that the driving section of the driving wheel rotates; the driven wheel is located below the driving wheel and meshes with the driving section; the driven wheel is rotatably connected with the material conveying pipe, and the driven wheel is nested on the material conveying pipe and will not drive the material conveying pipe to rotate, and the lower end surface of the driven wheel is fixedly installed with a driving disk; the driving disk has a driving groove in an annular array, and a push rod is slidably installed in the driving groove; the push plate is fixedly connected with the supercharging plate, and the driving section of the driving wheel rotates and meshes with the driven plate, and the driven wheel rotates to drive the driving disk to rotate synchronously, and the driving disk squeezes the push rod through the driving groove, and then pushes the supercharging plate to slide horizontally through the push rod, and the horizontal sliding of the supercharging plate reduces the inner diameter of the air inlet, thereby increasing the pressure on the hot air, increasing the flow rate of the hot air, and promoting the drying effect.

[0012] Preferably, a block is provided on the centrifugal plate, and a slot cooperating with the centrifugal plate is provided on the impeller. The block and the slot on the centrifugal plate cooperate with each other to fix the centrifugal plate. When the content of the beryllium hydroxide liquid is small, the centrifugal plate will not be separated from the impeller, and the push plate is pushed to drive the hot air content to change. At the same time, the centrifugal plate at the lower end is prevented from pulling the centrifugal spring under the action of gravity, resulting in a long-term stretched state, thereby causing the elastic modulus of the centrifugal spring to change, affecting the use effect.

[0013] Preferably, a boosting block is provided on the boosting plate, and the boosting block moves synchronously with the boosting plate to increase the pressure on the hot air, further promote the rapid flow of hot air, ensure the flow speed of the hot air, and then ensure the drying efficiency, avoiding the wet material from adhering to the inner wall of the centrifugal spray dryer.

[0014] Furthermore, the boost block is a right-angled triangle structure, and the hypotenuse of the right-angled triangle structure guides the flow of hot air, so that the hot air flows in a circular shape in the air inlet. The spiral drainage groove cooperates to make the hot air spray out from the air inlet evenly to dry the atomized particles.

[0015] Preferably, the adjusting assembly comprises a driven rack, a tension spring, a rotating wheel, a rotating shaft, a transmission wheel, a rotating disk, a limiting column and a fixed plate; the driven rack is arranged vertically with the driving rack, the driven rack is slidably installed in the moving cavity, one end of the driven rack is connected to the inner wall of the moving cavity by a tension spring, and the other end of the driven rack is provided with a pushing groove that cooperates with the driving rack; the rotating wheel is located in the adjusting cavity and meshes with the driven rack; the rotating wheel is fixedly connected to one end of the rotating shaft; when the feed amount is too much, the centrifugal wheel drives the driving rack to increase its displacement distance through the push plate. At this time, the driving rack contacts the driven rack, and the driven rack is squeezed to slide through the pushing groove, and the driven rack meshes with the rotating wheel, driving the rotating wheel to rotate, and the rotating wheel drives the rotating shaft to rotate synchronously, and the other end of the rotating shaft is connected with a transmission wheel, and the rotating shaft realizes the transmission of motion, and transmits the grabbing motion to the transmission wheel located at the bottom of the feeding pipe, driving the transmission wheel to rotate synchronously; The turntable is meshed with the transmission wheel, and a sliding groove is provided on the turntable; a limit column is slidably installed in the sliding groove; the limit column is fixedly connected to the baffle plate; the fixed plate is located above the turntable, and a limit groove corresponding to the sliding groove is provided on the fixed plate, and the other end of the limit column is located in the limit groove. The transmission wheel rotates and meshes with the gear teeth on the turntable to drive the turntable to rotate. The turntable pushes the limit column to slide through the sliding groove. The limit column maintains horizontal sliding under the action of the limit groove. The limit column drives the baffle plate to extend horizontally, changing the outlet diameter of the feed pipe, thereby limiting the feed amount of beryllium hydroxide liquid entering the atomizer to avoid excessive feed amount and incomplete hot air drying.

[0016] Preferably, the baffle plate is provided with a slow-flow surface, which prevents the accumulation of beryllium hydroxide liquid on the baffle plate. The flow of the beryllium hydroxide liquid is obstructed by the baffle plate, thereby reducing the flow rate entering the atomizer. The obstructed logistics will gradually slide and fall along the slow-flow surface, thereby preventing the beryllium hydroxide liquid from not entering the atomizer in time after the work is completed and being sprayed out and accumulated on the baffle plate.

[0017] A processing method, comprising: S1. Calcine the beryllium ore to destroy its crystal structure, dissolve the calcined beryllium ore with sulfuric acid for acidification, use sulfuric acid to preliminarily separate beryllium, aluminum and iron particles in the beryllium ore from the beryllium ore, purify and extract the acidified ore to remove Al and Fe impurities in the beryllium ore, and obtain beryllium hydroxide liquid; Adding calcite into beryllium ore particles for calcination and smelting, and adding sulfuric acid solution into the smelted beryllium ore to obtain a leaching solution containing beryllium, aluminum and iron; Add ammonium sulfate to the leachate to evaporate, crystallize and centrifuge to remove aluminum. After aluminum removal, add ammonia water to the leachate to neutralize and remove iron, and finally obtain beryllium hydroxide liquid; S2. Start the centrifugal spray dryer, introduce hot air through the air inlet at the top of the drying chamber to preheat the drying chamber to ensure the uniformity of the temperature in the drying chamber, and then send the beryllium hydroxide liquid into the atomizer through the liquid pump through the feed pipe, and spray it out through the atomizer centrifugally to obtain dry beryllium hydroxide; During the conveying process of the beryllium hydroxide liquid, the booster assembly controls the movement of the booster plate according to the feed amount of the beryllium hydroxide liquid, thereby controlling the flow rate of the hot air, improving the drying efficiency, and ensuring that the feed amount of the beryllium hydroxide liquid and the hot air drying efficiency are kept consistent. At the same time, the feed amount of the beryllium hydroxide liquid is limited by adjusting the assembly; S3. The dried beryllium hydroxide is sent to a calcining furnace, where it is heated at high temperature and decomposed to generate beryllium oxide.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. An energy-saving beryllium oxide processing device and a processing method thereof, wherein the device realizes the unification of feed flow rate and drying speed through the cooperation between a booster component and an adjustment component, thereby avoiding the phenomenon of beryllium hydroxide liquid sticking to the wall due to insufficient drying.

[0019] 2. An energy-saving beryllium oxide processing device and a processing method thereof, wherein the device improves the fluidity of the beryllium hydroxide liquid through an impeller, thereby preventing the poor fluidity of the beryllium hydroxide liquid from accumulating in the atomizer, thereby reducing the drying efficiency.

[0020] 3. An energy-saving beryllium oxide processing device and a processing method thereof, wherein the device limits the maximum feed amount of beryllium hydroxide liquid by adjusting components, thereby avoiding the reduction of exhaust air temperature due to a large feed amount, which affects the drying effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an overall half-section diagram of the present invention; Figure 2 For the present invention Figure 1 A local enlarged view of point A; Figure 3 is a cross-sectional view of a booster assembly of the present invention; Figure 4 For the present invention Figure 3 A local enlarged view of point B; Figure 5 is a cross-sectional view of the adjustment assembly of the present invention; Figure 6 For the present invention Figure 5 A local enlarged view of point C; Figure 7 It is a schematic diagram of the overall assembly of the present invention; Figure 8 It is a schematic diagram of a booster assembly of the present invention; Fig. 9 is a horizontal cross-sectional view of a component of the present invention; Fig.10 For the present invention Fig. 9 A local enlarged view of point D; Fig.11 For the present invention Fig. 9 A local enlarged view of point E; Fig.12 It is a schematic diagram of the adjustment component of the present invention.

[0022] In the figure: 1. Centrifugal spray dryer; 11. Drying chamber; 12. Air inlet; 121. Moving chamber; 122. Spiral drainage trough; 2. Feed pipe; 21. Adjustment chamber; 3. Atomizer; 4. Impeller; 41. Wave pattern; 5. Pressurizing assembly; 51. Centrifugal spring; 52. Centrifugal plate; 53. Push plate; 54. Driving rack; 541. Pushing groove; 55. Return spring; 56. Driving wheel; 561. Transmission section; 562. Driving section; 57. Driven wheel; 58. Driving disc; 581. Driving groove; 59. Push rod; 6. boost plate; 61. boost block; 611. right triangle structure; 7. Adjustment assembly; 71. Driven rack; 72. Tension spring; 73. Intermediate wheel; 74. Rotating shaft; 75. Transmission wheel; 76. Rotating plate; 761. Sliding groove; 77. Limiting column; 78. Fixed plate; 781. Limiting groove; 8. Flow-blocking plate; 81. Slow-flow surface. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] During the use of the centrifugal spray dryer, hot air is introduced through the air inlet at the top of the drying chamber to preheat the drying chamber, and then the beryllium hydroxide liquid is pumped into the atomizer through the feed pipe. The atomizer sprays the liquid into mist particles. The surface area of ​​these particle groups is large. After contacting with the high-temperature hot air, the water evaporates rapidly and becomes a dry product in a very short time. The product is discharged from the bottom of the tower. The temperature of the hot air drops significantly after contacting the droplets, and the humidity increases. It is extracted by the exhaust fan as waste gas, and the fine powder entrained in the waste gas is recovered by a cyclone centrifuge.

[0025] A technical solution provided by the present invention: like Figures 1 to 12 As shown, an energy-saving beryllium oxide processing device and a processing method thereof, comprising a centrifugal spray dryer 1, a feed pipe 2, an atomizer 3, an impeller 4, a pressure component 5, a pressure plate 6, an adjustment component 7 and a baffle plate 8; the centrifugal spray dryer 1 is provided with a drying chamber 11, the top of the drying chamber 11 is provided with an air inlet 12, and the inner side of the air inlet 12 is provided with a movable cavity 121 connected thereto; the feed pipe 2 is installed at the center of the air inlet 12, a through hole is provided on the feed pipe 2 to be connected to the movable cavity 121, an adjustment cavity 21 is provided on the feed pipe 2, and the adjustment cavity 21 is located below the through hole; the atomizer 3 is located below the feed pipe 2 and is fixedly connected to the feed pipe 2, and the centrifugal spray dryer 1 is in use When in use, firstly, hot air is introduced into the drying chamber 11 through the air inlet 12 to preheat the drying chamber 11, and then the beryllium hydroxide liquid is transported to the atomizer 3 through the feeding pipe 2, and is pressurized and centrifugally ejected in the atomizer 3. The ejected atomized particles are quickly dried under the action of the hot air blown out from the air inlet 12, and fall into the discharge port at the bottom end of the drying chamber 11. The air inlet 12 is provided with a spiral drainage groove 122, and the spiral drainage groove 122 guides the hot air in the air inlet 12, so that the hot air flows downward in a spiral shape, so that the hot air quickly fills the air inlet 12, and ensures that the hot air flows out uniformly in the circumferential direction of the atomizer 3, thereby ensuring that the efficiency of the atomized particles ejected from the atomizer 3 being dried by the hot air is consistent, thereby improving the drying quality; The impeller 4 is located in the feed pipe 2, one end of the impeller 4 extends into the moving chamber 121 through the through hole, the booster assembly 5 is located in the moving chamber 121, and the booster plate 6 is slidably installed in the moving chamber 121. When feeding into the feed pipe 2, the impeller 4 pushes the booster plate 6 to slide through the booster assembly 5. When the beryllium hydroxide liquid enters the feed pipe 2, the liquid impacts the impeller 4, driving the impeller 4 to rotate. As the feed amount of the beryllium hydroxide liquid is different, the rotation speed of the impeller 4 is different, and then the distance that the booster plate 6 is pushed to slide by the booster assembly 5 is different. The sliding of the booster plate 6 will reduce the air inlet. 12, thereby increasing the pressure of the hot air in the air inlet 12, thereby increasing the flow speed of the hot air and enhancing the drying speed of the hot air on the beryllium hydroxide; the impeller 4 is provided with a wavy pattern 41, and the wavy pattern 41 is used to enhance the stirring effect of the impeller 4 on the beryllium hydroxide liquid, thereby promoting the fluidity of the beryllium hydroxide liquid, and avoiding the low water content and insufficient fluidity of the beryllium hydroxide liquid, which leads to a decrease in the feed amount and affects the hot air drying efficiency; the regulating component 7 is located in the regulating chamber 21. When the feed in the feed pipe 2 is too large, the boosting component 5 pushes the baffle plate 8 out through the regulating component 7.

[0026] The centrifugal spring 51 is fixedly mounted on one end of the impeller 4 located in the moving chamber 121; the centrifugal plate 52 is fixedly mounted with the centrifugal spring 51; a push plate 53 is provided on one side of the centrifugal plate 52, and when the beryllium hydroxide feed liquid enters from the feed pipe 2, the beryllium hydroxide feed liquid impacts the impeller 4 to rotate, and the impeller 4 rotates to generate centrifugal force, and the centrifugal force is transmitted to the centrifugal plate 52 through the centrifugal spring 51, and the centrifugal plate 52 expands outward and contacts with the push plate 53, thereby pushing the push plate 53 to slide; a clamping block is provided on the centrifugal plate 52, and a clamping groove matching with the centrifugal plate 52 is provided on the impeller 4, and the clamping block and the clamping groove on the centrifugal plate 52 cooperate with each other to fix the centrifugal plate 52, and when the feed amount of the beryllium hydroxide feed liquid is small, the centrifugal plate 52 will not be separated from the impeller 4, and the push plate 53 is pushed to drive the hot air content to change, and at the same time, the centrifugal plate 52 at the lower end is prevented from being affected by gravity. The centrifugal spring 51 is pulled down, resulting in a long-term tension state, which causes the elastic modulus of the centrifugal spring 51 to change, affecting the use effect; the push plate 53 is fixedly connected to the drive rack 54, and the push plate 53 is used to realize the transmission of motion, driving the drive rack 54 to move synchronously; the drive rack 54 is located below the centrifugal plate 52 and is slidably connected to the moving cavity 121. A protrusion is provided on the drive rack 54, and a slide groove that cooperates with the protrusion is provided on the inner wall of the moving cavity 121. The moving cavity 121 fixes the horizontal height of the drive rack 54 through the slide groove. At the same time, the displacement of the drive rack 54 is limited to ensure the stability of operation; a reset spring 55 is connected between one end of the drive rack 54 and the inner wall of the moving cavity 121. The reset spring 55 is used to reset the drive rack 54 after the feeding stops. The other end of the drive rack 54 is provided with a push groove 541; The driving wheel 56 is located below the driving rack 54. The driving wheel 56 is divided into a transmission section 561 and a driving section 562. The transmission section 561 meshes with the driving rack 54. The driving rack 54 slides horizontally under the action of the push plate 53. The driving rack 54 meshes with the transmission section 561 of the driving wheel 56, thereby driving the driving wheel 56 as a whole to rotate, thereby causing the driving section 562 of the driving wheel 56 to rotate; the driven wheel 57 is located below the driving wheel 56 and meshes with the driving section 562; the driven wheel 57 is rotatably connected to the material conveying pipe 2, and the driven wheel 57 is nested on the material conveying pipe 2 and will not drive the material conveying pipe 2 to rotate. A driving disk 58 is fixedly installed on the lower end surface of the driven wheel 57; a driving groove 581 is arranged in an annular array on the driving disk 58, and a push rod 59 is slidably installed in the driving groove 581; the push plate 53 is fixedly connected to the supercharging plate 6, and the driving section 562 of the driving wheel 56 rotates with The driven plate is meshed, and the driven wheel 57 rotates to drive the driving disk 58 to rotate synchronously. The driving disk 58 squeezes the push rod 59 through the driving groove 581, and then pushes the supercharging plate 6 to slide horizontally through the push rod 59. The horizontal sliding of the supercharging plate 6 reduces the inner diameter of the air inlet 12, thereby increasing the pressure on the hot air and the flow rate of the hot air, thereby promoting the drying effect; the supercharging plate 6 is provided with a supercharging block 61, and the supercharging block 61 moves synchronously with the supercharging plate 6 to increase the pressure on the hot air, further promote the rapid flow of the hot air, ensure the flow rate of the hot air, and thus ensure the drying efficiency, and avoid the wet material from adhering to the inner wall of the centrifugal spray dryer 1; the supercharging block 61 is a right-angled triangle structure 611, and the hypotenuse of the right-angled triangle structure 611 guides the flow of the hot air, so that the hot air flows in a ring shape in the air inlet 12, and cooperates with the spiral drainage groove 122 to make the hot air evenly ejected from the air inlet 12 to dry the atomized particles; When the beryllium hydroxide liquid is transported to the feed pipe 2, the beryllium hydroxide liquid contacts the impeller 4 during its falling process, causing an impact on the impeller 4. The impeller 4 rotates to transport the beryllium hydroxide liquid, thereby enhancing the fluidity of the beryllium hydroxide liquid. At the same time, the rotation of the impeller 4 generates centrifugal force, and the impeller 4 drives the centrifugal plate 52 to move through the centrifugal force. The centrifugal plate 52 contacts the push plate 53, pushing the push plate 53 to slide horizontally, and the push plate 53 drives the driving rack 54 to move synchronously. The driving rack 54 engages with the transmission section 561 of the driving wheel 56, thereby driving the driving wheel 56 to rotate. The driving wheel 56 rotates and drives the driven wheel 57 to rotate through the driving section 562. The driven wheel 57 drives the driving disk 58 to rotate synchronously. The driving groove 581 on the driving disk 58 contacts the push rod 59, pushing the push rod 59 to slide horizontally, and the push rod 59 drives the supercharging plate 6 to extend to change the diameter of the air inlet 12, thereby enhancing the hot air flow rate.

[0027] The driven rack 71 is arranged vertically to the driving rack 54, and the driven rack 71 is slidably installed in the moving chamber 121. One end of the driven rack 71 is connected to the inner wall of the moving chamber 121 by a tension spring 72, and the other end of the driven rack 71 is provided with a pushing groove 541 that cooperates with the driving rack 54; the installation method of the driven rack 71 and the moving chamber 121 is the same as the installation method of the driving rack 54 and the moving chamber 121. When the centrifugal spray dryer 1 is not working, the driving rack 54 and the driven rack 71 do not contact each other. As the centrifugal spray works, the driving rack 54 slides under the action of centrifugal force and gradually moves toward the driven rack 71. When the feed amount reaches the set maximum value, the driving rack 54 and the driven rack 71 are just in contact. When the feed amount exceeds When the maximum value is set, the driving rack 54 drives the driven rack 71 to slide through the pushing groove 541, and the rotating wheel 73 is located in the adjusting chamber 21 and meshes with the driven rack 71; the rotating wheel 73 is fixedly connected to one end of the rotating shaft 74; when the feed amount is too much, the centrifugal wheel drives the driving rack 54 to increase the displacement distance through the push plate 53. At this time, the driving rack 54 contacts the driven rack 71 and squeezes the driven rack 71 to slide through the pushing groove 541. The driven rack 71 meshes with the rotating wheel 73, driving the rotating wheel 73 to rotate, and the rotating wheel 73 drives the rotating shaft 74 to rotate synchronously. The other end of the rotating shaft 74 is connected to a transmission wheel 75, and the rotating shaft 74 realizes the transmission of motion, and transmits the rotational motion to the transmission wheel 75 located at the bottom end of the feeding pipe 2, driving the transmission wheel 75 to rotate synchronously; The turntable 76 is meshed with the transmission wheel 75, and a sliding groove 761 is provided on the turntable 76; a limiting column 77 is slidably installed in the sliding groove 761; the limiting column 77 is fixedly connected to the baffle plate 8; the fixed plate 78 is located above the turntable 76, and a limiting groove 781 corresponding to the sliding groove 761 is provided on the fixed plate 78, and the other end of the limiting column 77 is located in the limiting groove 781, and the transmission wheel 75 rotates to mesh with the gear on the turntable 76, driving the turntable 76 to rotate, and the turntable 76 pushes the limiting column 77 to slide through the sliding groove 761, and the limiting column 77 keeps sliding horizontally under the action of the limiting groove 781, and the limiting column 77 drives the baffle plate 8 to extend horizontally, thereby changing the outlet diameter of the feed pipe 2, and then changing the beryllium hydroxide liquid The feed amount entering the atomizer 3 is to avoid excessive feed amount, which leads to incomplete hot air drying; the baffle plate 8 is provided with a slow flow surface 81, and the slow flow surface 81 prevents the accumulation of beryllium hydroxide liquid on the baffle plate 8. The flow of the beryllium hydroxide liquid is blocked under the action of the baffle plate 8, thereby reducing the flow entering the atomizer 3. The blocked logistics will gradually slide and fall along the slow flow surface 81, avoiding that the beryllium hydroxide liquid fails to enter the atomizer 3 in time after the work is completed and is ejected and accumulated on the baffle plate 8. If the slow flow surface 81 is not provided, the blocking effect of the baffle plate 8 will cause part of the beryllium hydroxide liquid to accumulate on the baffle plate 8. When the baffle plate 8 is reset, the beryllium hydroxide liquid accumulated thereon will fall into and accumulate in the atomizer 3, causing the atomizer 3 to be blocked; When the feed amount is too much, the driving rack 54 pushes the driven rack 71 to slide horizontally, and the driven rack 71 squeezes the tension spring 72. At the same time, the driven rack 71 meshes with the rotating wheel 73, driving the rotating wheel 73 to rotate, and the rotating wheel 73 drives the rotating shaft 74 to rotate synchronously, and the rotating shaft 74 drives the transmission wheel 75 to rotate synchronously, and the transmission wheel 75 meshes with the turntable 76 to drive the turntable 76 to rotate. The turntable 76 pushes the limit column 77 to slide through the sliding groove 761. The limit column 77 keeps horizontal sliding under the action of the limit groove 781, and the limit column 77 drives the baffle plate 8 to extend horizontally, thereby changing the outlet diameter of the feed pipe 2.

[0028] When the energy-saving beryllium oxide processing device and processing method of the present invention are used, the centrifugal spray dryer 1 introduces hot air into the drying chamber 11 to preheat the drying chamber 11. After the preheating is completed, the beryllium hydroxide liquid is injected into the atomizer 3 through the feeding pipe 2. During the falling process of the beryllium hydroxide liquid, the impeller 4 in the feeding pipe 2 is impacted to rotate. The rotation of the impeller 4 generates centrifugal force, and the centrifugal plate 52 is displaced under the action of the centrifuge. The centrifugal plate 52 pulls the centrifugal spring 51 to ensure its connection with the impeller 4. The centrifugal plate 52 pushes the push plate 53 to slide horizontally, and the push plate 53 drives the driving rack 54 to slide horizontally. The driving rack 54 pulls the reset spring 55. At the same time, the driving rack 54 drives the driving wheel 56 to rotate, and the driving wheel 56 is meshed with the driven wheel 57. The driven wheel 57 rotates, and the driven wheel 57 drives the driving disk 58 to rotate synchronously. The driving disk 58 squeezes the push rod 59 to slide horizontally through the driving groove 581, and the push rod 59 drives the supercharging plate 6 to slide horizontally; When the feed amount of beryllium hydroxide liquid is large, the driving rack 54 squeezes the driven rack 71 to slide through the pushing groove 541, the driven rack 71 meshes with the rotating wheel 73, the rotating wheel 73 rotates, the rotating wheel 73 drives the rotating shaft 74 to rotate synchronously, the rotating shaft 74 drives the transmission wheel 75 to rotate synchronously, the transmission wheel 75 meshes with the rotating disk 76, the driving rotating disk 76 rotates, the rotating disk 76 drives the limiting column 77 to slide horizontally through the sliding groove 761, and the limiting column 77 drives the baffle plate 8 to extend; When the drying is finished, the impeller 4 stops rotating, the centrifugal force disappears, the centrifugal plate 52 is reset under the action of the centrifugal spring 51, the centrifugal plate 52 no longer pushes the push plate 53, and the driving rack 54 moves in the opposite direction and resets under the action of the reset spring 55, the driving rack 54 drives the driven wheel 57 to reverse, the driven wheel 57 drives the driving disk 58 to reverse, the driving disk 58 drives the push rod 59 to move in the opposite direction and reset through the driving groove 581, the push rod 59 pulls the supercharging plate 6 to reset, and at the same time, the tension spring 72 pushes the driven rack 71 to reset, the driven rack 71 drives the rotating wheel 73 to reverse, the rotating wheel 73 drives the transmission wheel 75 to reverse through the rotating shaft 74, the transmission wheel 75 drives the turntable 76 to reverse, the turntable 76 drives the limit column 77 to move in the opposite direction and reset through the sliding groove 761, the limit column 77 drives the baffle plate 8 to reset, and the work is completed.

[0029] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An energy-saving beryllium oxide processing device, comprising a centrifugal spray dryer (1) for producing beryllium oxide, characterized in that: It also includes a feed pipe (2), an atomizer (3), an impeller (4), a pressure boosting component (5), a pressure boosting plate (6), an adjustment component (7) and a baffle plate (8); The centrifugal spray dryer (1) is provided with a drying chamber (11), the top of the drying chamber (11) is provided with an air inlet (12), and the inner side of the air inlet (12) is provided with a moving cavity (121) in communication with the air inlet; The material delivery pipe (2) is installed at the center of the air inlet (12); a through hole is provided on the material delivery pipe (2) and is connected to the moving cavity (121); an adjustment cavity (21) is provided on the material delivery pipe (2), and the adjustment cavity (21) is located below the through hole; The atomizer (3) is located below the material delivery pipe (2) and is fixedly connected to the material delivery pipe (2); The impeller (4) is located in the material delivery pipe (2), one end of the impeller (4) extends into the movable chamber (121) through a through hole, the booster assembly (5) is located in the movable chamber (121), and the booster plate (6) is slidably installed in the movable chamber (121). When material is fed into the material delivery pipe (2), the impeller (4) pushes the booster plate (6) to slide through the booster assembly (5); the regulating assembly (7) is located in the regulating chamber (21), and when the amount of material fed into the material delivery pipe (2) is too large, the booster assembly (5) pushes the baffle plate (8) to extend through the regulating assembly (7).

2. The processing device according to claim 1, characterized in that: The air inlet (12) is provided with a spiral drainage groove (122).

3. The processing device according to claim 1, characterized in that: The impeller (4) is provided with wavy patterns (41).

4. The processing device according to claim 3, characterized in that: The boost assembly (5) comprises a centrifugal spring (51), a centrifugal plate (52), a push plate (53), a drive rack (54), a return spring (55), a drive wheel (56), a driven wheel (57), a drive disc (58) and a push rod (59); The centrifugal spring (51) is fixedly mounted on one end of the impeller (4) located in the moving chamber (121); The centrifugal plate (52) is fixedly mounted on the centrifugal spring (51); a push plate (53) is provided on one side of the centrifugal plate (52); The push plate (53) is fixedly connected to the driving rack (54); The driving rack (54) is located below the centrifugal plate (52) and is slidably connected to the moving cavity (121); a return spring (55) is connected between one end of the driving rack (54) and the inner wall of the moving cavity (121), and a pushing groove (541) is formed at the other end of the driving rack (54); The driving wheel (56) is located below the driving rack (54); the driving wheel (56) is divided into a transmission section (561) and a driving section (562); the transmission section (561) is meshed with the driving rack (54); The driven wheel (57) is located below the driving wheel (56) and meshes with the driving section (562); the driven wheel (57) is rotatably connected to the material conveying pipe (2), and a driving disc (58) is fixedly mounted on the lower end surface of the driven wheel (57); The driving disk (58) has driving grooves (581) in an annular array, and push rods (59) are slidably mounted in the driving grooves (581); The push plate (53) is fixedly connected to the boost plate (6).

5. The processing device according to claim 4, characterized in that: The centrifugal plate (52) is provided with a clamping block, and the impeller (4) is provided with a clamping groove that cooperates with the centrifugal plate (52).

6. The processing device according to claim 4, characterized in that: A pressure boosting block (61) is provided on the pressure boosting plate (6).

7. The processing device according to claim 6, characterized in that: The pressure boosting block (61) is a right-angled triangle structure (611).

8. The processing device according to claim 4, characterized in that: The adjustment assembly (7) comprises a driven rack (71), a tension spring (72), a rotating wheel (73), a rotating shaft (74), a transmission wheel (75), a rotating disk (76), a limiting column (77) and a fixing plate (78); The driven rack (71) and the driving rack (54) are arranged vertically, the driven rack (71) is slidably installed in the moving cavity (121), one end of the driven rack (71) is connected to the inner wall of the moving cavity (121) via a tension spring (72), and the other end of the driven rack (71) is provided with a pushing groove (541) that cooperates with the driving rack (54); The rotating wheel (73) is located in the adjustment cavity (21) and meshes with the driven rack (71); the rotating wheel (73) is fixedly connected to one end of the rotating shaft (74); The other end of the rotating shaft (74) is connected to a transmission wheel (75); The rotating disk (76) is meshed with the transmission wheel (75), and a sliding groove (761) is provided on the rotating disk (76); a limiting column (77) is slidably installed in the sliding groove (761); The limiting column (77) is fixedly connected to the baffle plate (8); The fixing plate (78) is located above the rotating disk (76), and a limiting groove (781) corresponding to the sliding groove (761) is formed on the fixing plate (78), and the other end of the limiting column (77) is located in the limiting groove (781).

9. The processing device according to claim 8, characterized in that: The baffle plate (8) is provided with a slow flow surface (81).

10. A processing method, used for the processing device according to any one of claims 1 to 9, comprising: S1. Calcine the beryllium ore to destroy its crystal structure, dissolve the calcined beryllium ore with sulfuric acid for acidification, purify and extract the acidified ore to remove Al and Fe impurities in the beryllium ore, and obtain beryllium hydroxide liquid; S2. Start the centrifugal spray dryer (1), introduce hot air through the air inlet (12) at the top of the drying chamber (11) to preheat the drying chamber (11), then deliver the beryllium hydroxide liquid into the atomizer (3) through the feed pipe (2) via the liquid pump, and spray it out through the atomizer (3) by centrifugation, and dry it to obtain dry beryllium hydroxide; During the process of conveying the beryllium hydroxide liquid to the atomizer (3), the booster component (5) controls the flow rate of the hot air according to the feed amount of the beryllium hydroxide liquid, and at the same time, limits the feed amount of the beryllium hydroxide liquid through the regulating component (7); S3. The dried beryllium hydroxide is fed into a calcining furnace, where it is heated and decomposed at high temperature to generate beryllium oxide.

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