Basic cupric carbonate low-temperature thermal crystallization material drying integrated device

Abstract

The invention relates to the technical field of basic cupric carbonate drying devices, in particular to a basic cupric carbonate low-temperature thermal crystallization material drying integrated device. Comprising a base frame and further comprises a conveying shaft barrel rotationally installed on the base frame, a centrifugal conical disc is fixedly installed on the upper portion of the conveying shaft barrel, spraying outer holes are formed in the position, corresponding to the lower portion of the centrifugal conical disc, of the peripheral face of the conveying shaft barrel in an array mode, circulating discharging ports are formed in the upper portion of the conveying shaft barrel in an array mode, and circulating returning ports are formed in the lower portion of the conveying shaft barrel in an array mode; a first shock excitation unit for driving the material vibrating frame to periodically vibrate in a variable amplitude mode is arranged between the material vibrating frame and the material vibrating frame, a spraying shaft pipe is rotationally installed on the material vibrating frame, and spraying inner holes are formed in the periphery of the spraying shaft pipe in an array mode. The device has the beneficial effects that through the centrifugal material throwing structure of the centrifugal conical disc, the hot air gradient drying system with the inner and outer double jet holes and the reverse rotation cooperation of the spiral conveying blade and the conveying shaft barrel, the initial state that materials are fed, namely caking is broken through.

Description

Technical Field

[0001] This invention relates to the technical field of basic copper carbonate drying equipment, specifically an integrated drying device for low-temperature thermal crystallization materials of basic copper carbonate. Background Technology

[0002] Basic copper carbonate is an important inorganic chemical raw material, widely used in electronic electroplating, battery electrode materials, industrial catalysts, feed additives, antibacterial materials, and other fields. Currently, for the drying treatment of basic copper carbonate materials, the industry has developed a variety of technical routes and equipment solutions. For example, Chinese invention patent with publication number CN112857015B discloses a separation and drying device for preparing basic copper carbonate from copper-containing etching waste liquid. This solution uses a three-legged centrifuge to complete solid-liquid separation, and then uses a stirring rod in the drying box to drive the water-absorbing resin to mix with the material to achieve pre-dehydration. Then, a spiral feeder with electromagnetic heating completes secondary drying during the conveying process, and finally sends it into a vacuum box for deep drying. At the same time, the drying hot air is recycled through a T-shaped tube, which improves the heat utilization rate and drying effect to a certain extent. However, the above technical solutions have the following technical problems when used. Existing drying technologies cannot simultaneously solve the problems of material agglomeration, scaling, and drying uniformity under strict low-temperature drying conditions, making them unsuitable for the drying requirements of low-temperature thermal crystallization basic copper carbonate. Based on this, the present invention provides an integrated drying device for low-temperature thermal crystallization of basic copper carbonate materials to solve the problems mentioned in the background art. Summary of the Invention

[0003] This invention addresses the technical problems existing in the prior art by providing an integrated drying device for low-temperature thermal crystallization of basic copper carbonate. This solves the problem that existing drying technologies cannot simultaneously address the issues of material agglomeration, scaling, and drying uniformity under strict low-temperature drying conditions.

[0004] The technical solution of this invention to solve the above-mentioned technical problems is as follows: An integrated drying device for low-temperature thermal crystallization of basic copper carbonate materials, comprising a base frame, and further comprising: The conveying shaft is rotatably mounted on the base frame. A centrifugal cone is fixedly mounted on the upper part of the conveying shaft. Spraying holes are arrayed on its outer circumference and at the position corresponding to the lower part of the centrifugal cone. A circulating discharge port is arrayed on the upper part of the conveying shaft and a circulating return port is arrayed on the lower part. The vibrating frame is slidably connected to the base frame, and a first excitation unit is provided between the two to drive the vibrating frame to periodically change amplitude vibration. A spray shaft tube is rotatably installed on the vibrating frame. The outer periphery of the spray shaft tube is arrayed with spray inner holes, and a spiral conveying blade that fits against the conveying shaft tube is fixed on the spray shaft tube. The exciter frame is slidably connected to the base frame, and the base frame is equipped with a second excitation unit that drives the exciter frame to vibrate vertically. A drying cone is fitted on the outside of the conveying shaft. The drying cone is rotatably connected to the agitator frame through bearings. An elastic guide ring plate is rotatably connected between the drying cone and the conveying shaft. An electric heating jacket is fixed on the outer periphery of the drying cone. A temperature and humidity sensor, a pressure sensor and a pressure relief valve are respectively installed on the top of the drying cone. The controller is fixed on the base frame. The data terminal of the temperature and humidity sensor is connected to the controller. The controller is configured to dynamically adjust the amplitude of the oscillating frame based on the feedback from the temperature and humidity sensor. The motor is fixed on the base frame and is connected to the drying cone and the conveying shaft cylinder for transmission. The hot air supply unit is configured to communicate with the outer nozzle and the inner nozzle of the jet.

[0005] Based on the above technical solution, the present invention can be further improved as follows.

[0006] Preferably, a feed control valve and a pressure sensor are fixedly installed on the top of the drying cone. The data terminals of the pressure sensors are all connected to the controller. A discharge pipe is installed at the bottom of the base frame. The top of the discharge pipe is rotatably connected to the conveying shaft. A discharge control valve is installed on the discharge pipe.

[0007] Preferably, the centrifugal cone is equipped with an array of dispersing guide plates, the angle between the cone surface of the centrifugal cone and the horizontal plane is 40°, the angle between the cone surface of the drying cone and the horizontal plane is 35°, the circulating discharge port is located above the centrifugal cone, and the circulating return port is located below the spray hole.

[0008] Preferably, the first excitation unit includes an excitation wheel shaft rotatably connected to the base frame, a first synchronous belt drivingly connected to the output shaft of the motor, the first synchronous belt drivingly connected to the excitation wheel shaft, a base wheel fixedly mounted on the excitation wheel shaft, three eccentric lifting blocks arrayed on the base wheel along the circumferential direction, a lifting roller rotatably connected to the vibrating frame, when the excitation wheel shaft rotates, the three eccentric lifting blocks alternately abut against the lifting roller, and the abutment stroke of the three eccentric lifting blocks against the lifting roller is different for each, a hollow rotating shaft rotatably mounted on the top of the conveying shaft cylinder, both the conveying shaft cylinder and the hollow rotating shaft drivingly connected to the excitation wheel shaft, a limiting ring flange fixedly mounted on the top of the spraying shaft tube, and a first spring installed between the limiting ring flange and the hollow rotating shaft.

[0009] Preferably, the hollow rotary shaft has a spline hole, the top of the injection shaft tube has a spline section, the spline section is slidably connected to the spline hole, the cross-section of the spline section and the spline hole are both regular hexagonal, two intermediate bevel gears are fixedly installed on the excitation wheel shaft, and driven bevel gear rings are installed on both the hollow rotary shaft and the conveying shaft tube. The two driven bevel gear rings are respectively meshed with the two intermediate bevel gears, and the two driven bevel gear rings are symmetrically arranged about the horizontal plane where the axis of the excitation wheel shaft is located.

[0010] Preferably, the top of the base frame is provided with a guide top groove, and a top slider is fixedly mounted on the vibrating frame, the top slider being slidably connected to the guide top groove.

[0011] Preferably, the second excitation unit includes a bottom shaft rotatably connected to the base frame and a linear drive module fixedly mounted on the base frame. A second synchronous belt is drivenly connected to the output shaft of the motor, and the second synchronous belt is drivenly connected to the bottom shaft. An amplitude adjustment plate is drivenly connected to the linear drive module. A variable eccentricity protrusion is rotatably connected to the amplitude adjustment plate and is drivenly connected to the bottom shaft. An excitation roller is rotatably mounted on the excitation frame, and the variable eccentricity protrusion abuts against the excitation roller. A second spring is mounted on the top surface of the excitation frame, and the other end of the second spring is fixedly connected to the base frame.

[0012] Preferably, the base frame is provided with a guide groove, the bottom slider is rotatably mounted on the agitator frame, the bottom slider is slidably connected to the guide groove, the axis of the variable eccentricity protrusion is provided with a shaft hole, the shaft hole is slidably connected to the bottom shaft, and the cross-section of the shaft hole and the bottom shaft are both regular hexagons.

[0013] Preferably, the hot air supply unit includes a hot air generator fixed on a base frame, the air outlet of the hot air generator is connected to a three-way pipe, one end of the three-way pipe is connected to a rotary joint, an annular air distribution chamber is opened inside the conveying shaft cylinder, the rotary joint is rotatably connected to the annular air distribution chamber, each of the spraying outer holes is connected to the annular air distribution chamber, a drying air guide chamber is opened at the bottom of the unloading pipe, an air guide channel with an open bottom is opened inside the spraying shaft cylinder, the bottom end of the air guide channel is connected to the drying air guide chamber, and the axes of the spraying outer holes and spraying inner holes are perpendicular to the axis of the conveying shaft cylinder.

[0014] Preferably, a transmission gear column is rotatably connected to the base frame, and a passive gear ring is fixedly mounted on the drying cone. The transmission gear column meshes with the passive gear ring, and the axial length of the teeth of the transmission gear column is 6 to 15 times the axial length of the teeth of the passive gear ring. Both the transmission gear column and the output shaft of the motor are equipped with linkage bevel gears, and the two linkage bevel gears mesh orthogonally.

[0015] The beneficial effects of this invention are: 1. This invention breaks the initial state of material agglomeration upon feeding by using a centrifugal cone disc centrifugal throwing structure, a hot air gradient drying system with internal and external double spray holes, and the counter-rotation of the spiral conveyor blades and the conveyor shaft. The material is first evenly thrown out on the centrifugal cone disc by the dispersing guide plate to form a dispersed material curtain, avoiding the agglomeration caused by direct accumulation of material in traditional equipment. Subsequently, vertical convection is formed between the radial hot air ejected from the outer cavity and the outer spray hole to complete the rapid removal of surface moisture. In the inner cavity, the material is pushed by the spiral conveyor blades rotating in the opposite direction to the conveyor shaft, and the radial hot air from the inner spray hole penetrates to achieve deep drying of the internal bound water. This internal and external double-stage drying system not only achieves gradient removal of moisture and avoids the problems of surface crusting and internal moisture not escaping caused by rapid heating, but also solves the problems of material agglomeration and poor drying uniformity under low-temperature conditions through the synergistic effect of throwing, convection, and penetration.

[0016] 2. This invention further utilizes a first excitation unit to drive a vibrating frame, which in turn drives the spray shaft and spiral conveyor blades to perform periodic variable-amplitude vertical vibration. This is combined with a second excitation unit driving an excitation frame, which in turn drives the drying cone to perform vertical reciprocating vibration while rotating. This constructs a dual vibration coupling system between the material conveying channel and the drying chamber. The variable-amplitude vibration of the spiral conveyor blades continuously breaks up the agglomerated structure during the reverse material pushing process, keeping the material particles in a loose and dispersed dynamic state. At the same time, the variable-amplitude vibration changes the material propulsion speed, preventing insufficient drying due to excessively fast conveying or local overheating due to excessively slow conveying. The rotation and vibration coupling of the drying cone, combined with its 35° cone inclination angle and ultra-mirror polished anti-stick coating, causes the material to form a continuous and uniform spiral falling curtain along the cone surface. This fundamentally solves the problem of easy adhesion and scaling of basic copper carbonate materials and avoids crystal destruction caused by prolonged adhesion and heating of the material.

[0017] 3. This invention is based on closed-loop control of the controller and temperature and humidity sensors. It dynamically adjusts the vibration amplitude of the vibrating frame according to real-time humidity feedback. At the same time, it achieves stepless dynamic adjustment of the amplitude through the axial sliding of the variable eccentricity protrusion. Combined with the constant temperature radiation heating of the electric heating jacket and the composite low-temperature drying system of hot air convection heating, a fully automatic adaptive drying process is constructed. In the high moisture content stage, the amplitude is automatically increased to enhance the material dispersion and hot air contact efficiency. In the low moisture content stage, the amplitude is automatically reduced to avoid dust and crystal damage. This solves the problem of traditional drying equipment relying on manual experience for adjustment and large batch-to-batch product quality differences. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the integrated drying device for low-temperature thermal crystallization of basic copper carbonate according to the present invention. Figure 2 For the present invention Figure 1 A structural diagram from another perspective; Figure 3 For the present invention Figure 2 A schematic diagram of the cross-sectional structure; Figure 4 For the present invention Figure 3 A magnified schematic diagram of the partial structure at point A in the middle; Figure 5 For the present invention Figure 3 A magnified schematic diagram of the local structure at point B; Figure 6 For the present invention Figure 3 A magnified schematic diagram of the structure at point C in the middle; Figure 7 This is a schematic diagram of the centrifugal conical disc and hot air generator of the present invention; Figure 8 This is a schematic diagram of the structure of the conveying shaft cylinder and the hollow rotating shaft of the present invention; Figure 9 This is a schematic diagram of the amplitude adjustment plate and the variable eccentricity protrusion of the present invention.

[0019] The attached diagram lists the components represented by each number as follows: 1. Base frame; 2. Conveyor shaft cylinder; 3. Vibrating frame; 4. Agitator frame; 5. Drying cone cylinder; 6. Controller; 7. Motor; 8. Hot air generator; 201. Centrifugal cone disc; 202. Outer nozzle of the spray nozzle; 203. Circulating outlet; 204. Circulating return outlet; 205. Dispersing guide plate; 301. Spray shaft tube; 302. Inner nozzle of the spray nozzle; 303. Spiral conveyor blades; 304. Vibrating wheel shaft; 305. Base wheel; 306. Eccentric lifting block; 307. Lifting roller; 308. Hollow rotating shaft; 309. First spring; 401, bottom shaft; 402, linear drive module; 403, amplitude adjustment plate; 404, variable eccentricity protrusion; 405, excitation roller; 406, second spring; 501, elastic guide ring plate; 502, electric heating jacket; 503, temperature and humidity sensor; 504, pressure sensor; 505, pressure relief valve; 506, feed control valve; 507, unloading pipe; 508, transmission gear; 509, passive gear ring; 801, tee pipe; 802, annular air distribution chamber; 803, drying air guide chamber. Detailed Implementation

[0020] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0021] The present invention provides the following preferred embodiments: like Figure 1-9 As shown, the integrated drying device for low-temperature thermal crystallization of basic copper carbonate includes a base frame 1, and also includes: The conveying shaft cylinder 2 is rotatably mounted on the base frame 1. A centrifugal cone disk 201 is fixedly mounted on the upper part of the conveying shaft cylinder 2. An external injection hole 202 is arrayed on its outer circumference and at the position corresponding to the lower part of the centrifugal cone disk 201. A circulating discharge port 203 is arrayed on the upper part of the conveying shaft cylinder 2, and a circulating return port 204 is arrayed on the lower part. A dispersion guide plate 205 is arrayed on the centrifugal cone disk 201, and the angle between the cone surface of the centrifugal cone disk 201 and the horizontal plane is 40°. The circulating discharge port 203 is located above the centrifugal cone 201, and the circulating return port 204 is located below the injection port 202. After the low-temperature thermal crystallization material of basic copper carbonate falls onto the rotating centrifugal conical disk 201, the centrifugal conical disk 201 throws the low-temperature thermal crystallization material of basic copper carbonate evenly along the conical surface through the array of dispersing guide plates 205, forming a dispersed material curtain. The 40° conical inclination design allows the low-temperature thermal crystallization material of basic copper carbonate to be thrown out with both radial centrifugal force and axial downward force, avoiding direct splashing and impact of the low-temperature thermal crystallization material of basic copper carbonate on the inner wall of the drying cone 5, which would cause adhesion. After being thrown out, the low-temperature thermal crystallization material of basic copper carbonate is guided down through the inner wall of the drying cone 5. During this process, it comes into full contact with the hot air sprayed from the outer nozzle 202 on the conveying shaft cylinder 2 to complete the initial drying. After the initial drying, the low-temperature thermal crystallization material of basic copper carbonate enters the interior of the conveying shaft cylinder 2 through the circulation return port 204. After being circulated and conveyed by the conveying shaft cylinder 2, it is discharged through the circulation outlet 203 and then circulated and dried. The centrifugal cone disk 201 centrifugal throwing structure realizes the dispersion treatment of basic copper carbonate low temperature thermal crystallization material, breaks the initial state of material agglomeration and caking from the source, and solves the problems of material agglomeration and poor drying uniformity in traditional drying equipment. By setting up upper and lower partitions for the circulating discharge port 203 and the circulating return port 204, a closed-loop process for drying, conveying, and circulating basic copper carbonate low-temperature thermal crystallization material is constructed. The vibrating frame 3 is slidably connected to the base frame 1, and a first excitation unit is provided between the two to drive the vibrating frame 3 to periodically change amplitude vibration. In this embodiment, a guide top groove is provided on the top of the base frame 1, and a top slider is fixed on the vibrating frame 3. The top slider is slidably connected to the guide top groove. The first excitation unit includes an excitation wheel shaft 304 rotatably connected to the base frame 1. A first synchronous belt is driven to the output shaft of the motor 7. The first synchronous belt is driven to the excitation wheel shaft 304. A base wheel 305 is fixedly mounted on the excitation wheel shaft 304. Three eccentric lifting blocks 306 are arrayed on the base wheel 305 along the circumferential direction. A lifting roller 307 is rotatably connected to the vibrating frame 3. When the excitation wheel shaft 304 rotates, the three eccentric lifting blocks 306 alternately abut against the lifting roller 307, and the abutment stroke of the three eccentric lifting blocks 306 against the lifting roller 307 is different. A hollow rotating shaft 308 is rotatably mounted on the top of the conveying shaft cylinder 2. Both the conveying shaft cylinder 2 and the hollow rotating shaft 308 are driven to the excitation wheel shaft 304. A limiting ring is fixedly mounted on the top of the spray shaft tube 301. A first spring 309 is installed between the limiting ring and the hollow rotating shaft 308. A spline hole is provided inside the hollow rotating shaft 308, and a spline section is provided at the top of the injection shaft tube 301. The spline section is slidably connected to the spline hole, and the cross-section of both the spline section and the spline hole is a regular hexagon. Two intermediate bevel gears are fixedly installed on the excitation wheel shaft 304. Driven bevel gear rings are installed on the hollow rotary shaft 308 and the conveying shaft cylinder 2. The two driven bevel gear rings are respectively meshed with the two intermediate bevel gears. The two driven bevel gear rings are symmetrically arranged about the horizontal plane where the axis of the excitation wheel shaft 304 is located. During operation, the motor 7 drives the exciter shaft 304 to rotate continuously via the first synchronous belt. The exciter shaft 304 meshes with two symmetrically arranged driven bevel gear rings through the intermediate bevel gear, synchronously driving the hollow rotary shaft 308 and the conveying shaft cylinder 2 to rotate in opposite directions. The hollow rotary shaft 308 drives the injection shaft tube 301 to rotate synchronously through the spline hole and spline section, so that the spiral conveying blades 303 form a spiral conveying action in the conveying shaft cylinder 2 in the opposite direction to the conveying shaft cylinder 2. On the other hand, the exciter shaft 304 drives the base wheel 305 to rotate synchronously. The three eccentric lifting blocks 306 with different lifting strokes on the base wheel 305 alternately abut against the lifting rollers 307 on the vibrating frame 3. With the reset action of the first spring 309, the vibrating frame 3 is driven to perform periodic vertical amplitude reciprocating vibration along the guide top groove, which in turn drives the spray shaft tube 301 to perform vertical amplitude vibration synchronously while rotating, so that the spiral conveying blade 303 can simultaneously complete the amplitude vibration action during the reverse conveying of materials. In a preferred embodiment, the lifting strokes of the three eccentric lifting blocks 306 are set to 8mm, 12mm, and 16mm respectively. During the continuous rotation of the base wheel 305 driven by the excitation wheel shaft 304, the three eccentric lifting blocks 306 with different lifting strokes alternately abut against the lifting roller 307, so that the vibrating frame 3 drives the spray shaft tube 301 and the spiral conveying blade 303 to form a periodic amplitude vibration motion state of 8mm, 12mm, and 16mm. The variable amplitude vibration, combined with the spiral conveyor blades 303, pushes the low-temperature thermal crystallization material of basic copper carbonate in the conveying cylinder 2. On the one hand, it can break the agglomeration and blockage structure that the low-temperature thermal crystallization material of basic copper carbonate is prone to form during the conveying process, so that the particles of the low-temperature thermal crystallization material of basic copper carbonate are in a loose and dispersed dynamic state, increasing the contact area with hot air. On the other hand, the periodically changing vibration amplitude can change the advancing speed of the low-temperature thermal crystallization material of basic copper carbonate in the conveying cylinder 2, avoiding insufficient drying due to excessively fast conveying of the low-temperature thermal crystallization material of basic copper carbonate or local overheating due to excessively slow conveying. Simultaneously, the variable amplitude vibration can also drive the jet shaft tube 301 to vibrate synchronously, causing the hot air blown out of the jet inner hole 302 to form a turbulent airflow, further enhancing the convective heat transfer effect between the hot air and the low-temperature thermal crystallization material of basic copper carbonate. In addition, the variable amplitude vibration can also effectively prevent the material from adhering to the inner wall of the conveying shaft tube 2 and the surface of the spiral conveying blade 303, ensuring the continuity of conveying and drying of the low-temperature thermal crystallization material of basic copper carbonate, adapting to the core requirements of low-temperature, uniform, and efficient drying of the low-temperature thermal crystallization material of basic copper carbonate, and realizing the synergistic optimization of dispersion, conveying, and hot air contact during the material drying process.

[0022] A jetting shaft tube 301 is rotatably mounted on the vibrating frame 3. The outer periphery of the jetting shaft tube 301 is arrayed with jetting inner holes 302. A spiral conveying blade 303 that fits against the conveying shaft tube 2 is fixedly mounted on the jetting shaft tube 301. The axes of both the outer injection hole 202 and the inner injection hole 302 are perpendicular to the axis of the conveying shaft cylinder 2; The excitation frame 4 is slidably connected to the base frame 1, and the base frame 1 is provided with a second excitation unit that drives the excitation frame 4 to vibrate vertically. A guide groove is provided on the base frame 1, and a bottom slider is rotatably mounted on the agitator frame 4. The bottom slider is slidably connected to the guide groove. The drying cone 5 is sleeved on the outside of the conveying shaft cylinder 2; The drying cone 5 is made of 304 stainless steel and has undergone solution heat treatment. The angle between its cone surface and the horizontal plane is 35°. The inner cone surface is treated with a super mirror polish with Ra≤0.2 micrometers and is sprayed with a 35-micrometer thick food-grade modified polytetrafluoroethylene anti-stick coating. The angle between the cone surface of the drying cone 5 and the horizontal plane is 35°. The drying cone 5 is rotatably connected to the agitator 4 via a bearing. The drying cone 5 is rotatably connected to the conveying shaft 2 via an elastic guide ring plate 501. An electric heating jacket 502 is fixedly installed on the outer periphery of the drying cone 5. A temperature and humidity sensor 503, a pressure sensor 504, and a pressure relief valve 505 are respectively installed on the top of the drying cone 5. Furthermore, a feed control valve 506 and a pressure sensor 504 are fixedly installed on the top of the drying cone 5. The data terminals of the pressure sensor 504 are connected to the controller 6. A discharge pipe 507 is installed at the bottom of the base frame 1. The top of the discharge pipe 507 is rotatably connected to the conveying shaft cylinder 2. A discharge control valve is installed on the discharge pipe 507. In this embodiment, the power supply end of the electric heating jacket 502 is electrically connected to an external power source through a conductive slip ring. The rotating end of the conductive slip ring rotates synchronously with the drying cone 5, and the fixed end is fixedly connected to the base frame 1. The signal output terminals of temperature and humidity sensor 503 and pressure sensor 504 are connected to controller 6 via a wireless communication module. Motor 7 is fixedly mounted on base frame 1 and is connected to drying cone 5 and conveying shaft 2 for transmission. The low-temperature thermal crystallization material of basic copper carbonate is quantitatively fed into the drying cone 5 through the feed control valve 506. The electric heating jacket 502 heats the drying cone 5 at a low temperature and constant temperature, providing a stable low-temperature drying environment for the drying chamber and avoiding the influence of hot air temperature fluctuations on the drying effect. The motor 7 drives the drying cone 5 to rotate synchronously with the agitator 4. At the same time, the second excitation unit drives the agitator 4 to perform vertical reciprocating vibration along the guide bottom groove, thereby driving the drying cone 5 to complete vertical vibration synchronously while rotating, so that the material falling on the inner wall of the drying cone 5 forms a vibrating flow state of spiraling down along the cone surface. During the drying process, the temperature and humidity sensor 503 collects the temperature and humidity data in the drying chamber in real time, and the pressure sensor 504 collects the air pressure data in the chamber in real time. When the air pressure in the chamber exceeds the set threshold, the controller 6 controls the pressure relief valve 505 to automatically open and relieve pressure, ensuring the safety of the drying process. After drying, the low-temperature thermal crystallization material of basic copper carbonate is guided by the elastic guide ring plate 501 into the circulation return port 204 and finally enters the bottom of the conveying cylinder 2. By coupling the rotation and vertical vibration of the drying cone 5, and with a 35° cone inclination angle, the low-temperature thermal crystallization material of basic copper carbonate forms a continuous and uniform spiral falling curtain on the inner wall of the drying cone 5. This not only avoids the accumulation of the low-temperature thermal crystallization material of basic copper carbonate at the bottom of the cone, but also significantly extends the residence time of the material in the drying chamber. At the same time, the vibration action continuously shakes off the material adhering to the inner wall of the cone. Combined with ultra-mirror polishing and food-grade modified polytetrafluoroethylene anti-stick coating, it fundamentally solves the problem of easy adhesion and scaling of basic copper carbonate material to the wall, ensuring the stability of continuous operation of the equipment. It also avoids the crystal form destruction caused by prolonged adhesion and heating of the low-temperature thermal crystallization material of basic copper carbonate. On the other hand, it causes the low-temperature thermal crystallization material of basic copper carbonate to change the angle of airflow and heating as it flows, thereby improving the drying uniformity. By combining constant temperature heating of the cylinder wall of the electric heating jacket 502 with hot air convection heating, a dual-mode low-temperature drying system of radiation and convection is constructed, which forms a uniform and stable temperature field in the drying chamber. This avoids the problems of uneven temperature distribution and local overheating in traditional hot air drying. The drying temperature can be precisely controlled within the safe temperature range of basic copper carbonate thermal crystallization material. While ensuring drying efficiency, it completely avoids the problems of material decomposition, discoloration and crystal transformation due to high temperature, thus ensuring the product qualification rate. The design of the elastic guide ring plate 501 not only achieves seamless connection between the drying cone 5 and the conveying shaft cylinder 2 under rotation and vibration, ensuring smooth flow of the low-temperature thermal crystallization material of basic copper carbonate, but also absorbs the displacement deviation of the drying cone 5 during vibration through its own elastic deformation, avoiding the jamming and wear problems that are prone to occur in rigid connections, and improving the reliability of equipment operation. In this embodiment, the elastic guide ring plate 501 is a stainless steel elastic plate with annular corrugated sections. The elastic guide ring plate 501 can generate elastic deformation along the axial direction to compensate for the axial vibration displacement of the drying cone 5 relative to the conveying shaft cylinder 2. A transmission gear 508 is rotatably connected to the base frame 1, and a driven gear ring 509 is fixedly mounted on the drying cone 5. The transmission gear 508 meshes with the driven gear ring 509. The axial length of the teeth of the transmission gear 508 is 6 to 15 times the axial length of the teeth of the driven gear ring 509, preferably 10 times. Both the transmission gear 508 and the output shaft of the motor 7 are equipped with linkage bevel gears, and the two linkage bevel gears mesh orthogonally. The second excitation unit includes a bottom shaft 401 rotatably connected to the base frame 1 and a linear drive module 402 fixedly mounted on the base frame 1. A second synchronous belt is driven to the output shaft of the motor 7, and the second synchronous belt is driven to the bottom shaft 401. An amplitude adjustment plate 403 is driven to the linear drive module 402. A variable eccentricity protrusion 404 is rotatably connected to the amplitude adjustment plate 403, and the variable eccentricity protrusion 404 is driven to the bottom shaft 401. An excitation roller 405 is rotatably mounted on the excitation frame 4, and the variable eccentricity protrusion 404 abuts against the excitation roller 405. A second spring 406 is mounted on the top surface of the excitation frame 4, and the other end of the second spring 406 is fixedly connected to the base frame 1.

[0023] Preferably, a shaft hole is provided at the axial position of the variable eccentricity protrusion 404, and the shaft hole is slidably connected to the bottom shaft 401. The cross-sections of the shaft hole and the bottom shaft 401 are both regular hexagons. The variable eccentricity protrusion 404 is a variable cross-section cam structure that changes continuously along the axial direction. The length of the variable eccentricity protrusion 404 is 9 times the width of the excitation roller 405. Motor 7 drives the bottom shaft 401 to rotate continuously via the second synchronous belt. The bottom shaft 401 drives the variable eccentricity protrusion 404 to rotate synchronously through the shaft hole with a regular hexagonal cross section. The variable eccentricity protrusion 404 drives the excitation frame 4 to perform vertical reciprocating vibration along the guide bottom groove through the abutment of the excitation roller 405 and the reset action of the second spring 406, thereby driving the drying cone 5 to complete synchronous vibration. When the controller 6 receives the feedback signal from the temperature and humidity sensor 503 and needs to adjust the vibration amplitude of the drying cone 5, it controls the linear drive module 402 to drive the amplitude adjustment plate 403 to move axially along the bottom shaft 401, which in turn drives the variable eccentricity protrusion 404 to slide axially along the bottom shaft 401, so that the cross sections with different eccentricities on the variable eccentricity protrusion 404 abut against the excitation roller 405, thereby realizing stepless dynamic adjustment of the vibration amplitude. The length of the variable eccentricity protrusion 404, which is 9 times the width of the excitation roller 405, provides sufficient adjustment stroke for amplitude adjustment, ensuring the continuity and stability of amplitude adjustment. By using the variable cross-section cam structure of the variable eccentricity protrusion 404 and the axial adjustment of the linear drive module 402, the stepless dynamic adjustment of the vibration amplitude of the drying cone 5 is achieved. Compared with the traditional fixed amplitude vibration structure, the vibration amplitude can be adjusted in real time according to the drying progress and moisture content of the basic copper carbonate material. When the moisture content of the basic copper carbonate low-temperature hot crystallization material is high in the early stage of feeding, a large amplitude is used to enhance the material dispersion and anti-sticking effect. When the moisture content of the basic copper carbonate low-temperature hot crystallization material is low in the later stage of drying, a small amplitude is used to avoid material dust and crystal damage. The vibration parameters of the entire drying process are accurately matched, which further improves the drying effect and product quality. The sliding fit structure between the bottom shaft 401 with the shaft hole and the regular hexagonal cross section ensures the stable transmission of the rotational torque of the bottom shaft 401 to the variable eccentricity protrusion 404 throughout its entire stroke. It also provides a degree of freedom for the axial sliding adjustment of the variable eccentricity protrusion 404 without interference, realizing the synchronous operation of rotational excitation and amplitude adjustment. The dynamic adjustment of amplitude can be completed without stopping the equipment, ensuring the continuity of drying operations and solving the problem that traditional vibration equipment requires stopping the machine to adjust vibration parameters. The controller 6 is fixed on the base frame 1. The data terminal of the temperature and humidity sensor 503 is connected to the controller 6. The controller 6 is configured to dynamically adjust the amplitude of the oscillating frame 4 based on the feedback from the temperature and humidity sensor 503. During the drying process, the temperature and humidity sensor 503 collects the temperature and humidity data in the drying chamber in real time and transmits the data to the controller 6 in real time. The controller 6 compares the real-time collected humidity data with the preset drying process threshold. When the humidity in the chamber is higher than the set threshold, the controller 6 sends a control command to the linear drive module 402 of the second excitation unit to increase the vibration amplitude of the excitation frame 4, enhance the dispersion effect of the material and the hot air contact efficiency, and accelerate the moisture escape. When the humidity in the chamber drops to the set threshold range, the controller 6 adjusts the vibration amplitude of the vibrating frame 4 accordingly to avoid excessive vibration of the material causing crystal damage and dust. Meanwhile, the pressure sensor 504 collects the air pressure data in the drying chamber in real time and transmits it to the controller 6. When the air pressure in the chamber exceeds the set safety threshold, the controller 6 immediately sends an opening command to the pressure relief valve 505 to complete the automatic pressure relief. When the air pressure drops back to the safe range, the controller 6 controls the pressure relief valve 505 to automatically close, ensuring the air pressure in the drying chamber is stable. Through the closed-loop linkage control of controller 6, temperature and humidity sensor 503, and second excitation unit, adaptive dynamic adjustment of vibration amplitude during the drying process is realized. A fully automatic closed-loop control system for humidity feedback, amplitude adjustment, and drying efficiency optimization is constructed. The operating parameters can be optimized in real time according to the actual drying progress of the material without manual intervention. This not only ensures the stability of the drying effect but also greatly reduces the intensity of manual operation, solving the problems of traditional drying equipment relying on manual experience for adjustment and large differences in product quality between batches. The hot air supply unit is configured to communicate with the outer nozzle 202 and the inner nozzle 302.

[0024] The hot air supply unit includes a hot air generator 8 fixed on the base frame 1. The air outlet of the hot air generator 8 is connected to a three-way pipe 801. One end of the three-way pipe 801 is connected to a rotary joint. An annular air distribution chamber 802 is opened inside the conveying shaft cylinder 2. The rotary joint is rotatably connected to the annular air distribution chamber 802. Each spray outer hole 202 is connected to the annular air distribution chamber 802. A drying air guide chamber 803 is opened at the bottom of the unloading pipe 507. An air guide channel with an open bottom is opened inside the spray shaft pipe 301. The bottom end of the air guide channel is connected to the drying air guide chamber 803.

[0025] In this embodiment, the bottom end of the jet shaft tube 301 is connected to the top end of the drying air guide chamber 803 through a rotary sealing slip ring. The rotary sealing slip ring can simultaneously adapt to the rotational movement and axial reciprocating vibration of the jet shaft tube 301, ensuring the sealing performance of the hot air delivery. The hot air supply unit sends heated low-temperature hot air into the annular air distribution chamber 802 of the conveying shaft cylinder 2 and the air guide channel of the jet shaft tube 301 respectively. The hot air is sprayed outward and inward perpendicular to the axis of the conveying shaft cylinder 2 through the outer jet hole 202 and the inner jet hole 302 respectively. The hot air ejected from the outer nozzle 202 forms a radial hot air curtain in the outer cavity between the drying cone 5 and the conveying shaft 2, and forms a vertical convection with the falling material thrown out by the centrifugal cone 201, thus completing the drying of the material in the outer cavity. The hot air ejected from the inner nozzle 302 forms radial hot air in the inner cavity of the conveying shaft cylinder 2, which vertically penetrates the material during the conveying process of the spiral conveying blades 303, thus completing the deep drying of the material inside the cavity. Meanwhile, the structure of the spiral conveying blades 303 fitting against the inner wall of the conveying shaft cylinder 2 divides the inner cavity of the conveying shaft cylinder 2 into continuous spiral conveying chambers, so that the low-temperature thermal crystallization material of basic copper carbonate can fully contact the hot air ejected from the injection hole 302 in each chamber, thereby achieving gradient continuous drying of the low-temperature thermal crystallization material of basic copper carbonate. Vertically jetted hot air has stronger penetrability and can directly penetrate the material layer and curtain of low-temperature thermal crystallization material of basic copper carbonate, achieving all-round encapsulation and contact of the particles of low-temperature thermal crystallization material of basic copper carbonate. This solves the problem that in traditional hot air drying, hot air can only contact the surface of the material and the internal drying is insufficient, greatly improving the drying effect in low-temperature environment. Through the structural design of internal and external double spray holes, a two-stage drying system of external convection drying and internal penetration drying is constructed. The external cavity completes the rapid removal of surface moisture from the material, while the internal cavity completes the deep removal of internal bound water from the material. This achieves gradient removal of moisture from basic copper carbonate material, which not only ensures drying efficiency but also avoids the problem of surface crusting and internal moisture not escaping caused by rapid heating, thus ensuring the crystal integrity of the material and product quality. The spiral conveying blades 303, which are attached to the inner wall of the conveying shaft cylinder 2, not only achieve stable and continuous material conveying, but also form multiple relatively independent drying chambers through the separation effect of the spiral blades. This extends the contact time between the low-temperature thermal crystallization material of basic copper carbonate and the hot air. At the same time, the variable amplitude vibration of the spiral conveying blades 303 ensures that the low-temperature thermal crystallization material of basic copper carbonate in each chamber is in a continuously loose dynamic state, further enhancing the effect of hot air penetration drying. This achieves the simultaneous completion of material conveying and drying, significantly reducing the process flow and floor space of the equipment.

[0026] The specific steps for using this invention are as follows: During the preparation phase, the operator first feeds the basic copper carbonate low-temperature thermal crystallization material quantitatively through the feed control valve 506 at the top of the drying cone 5, closes the feed control valve 506 and the discharge control valve on the discharge pipe 507, and presets the drying process parameters in the controller 6, including the 80°C constant temperature heating temperature of the electric heating jacket 502, the 75°C hot air output temperature of the hot air generator 8, the safety air pressure threshold of the drying chamber and the humidity graded control threshold. Simultaneously, the electric heating jacket 502 is started to preheat the drying cone 5. After the temperature and humidity sensor 503 reports that the temperature inside the drying cone 5 has reached the preset constant temperature value, all preparations before drying are completed. During the working phase, the motor 7 and the hot air supply unit are started synchronously. The motor 7 drives the conveyor cylinder 2, the hollow rotary shaft 308, and the drying cone 5 to rotate synchronously through the transmission structure. The excitation wheel shaft 304 drives the conveyor cylinder 2 and the hollow rotary shaft 308 to rotate in opposite directions through the meshing of the intermediate bevel gear and the symmetrically arranged driven bevel gear ring. The hollow rotary shaft 308 drives the spray shaft tube 301 and the spiral conveyor blade 303 to rotate synchronously in opposite directions through the sliding fit of the regular hexagonal spline hole and the spline section. At the same time, the motor 7 drives the excitation wheel shaft 304 of the first excitation unit to rotate continuously through the first synchronous belt. The base wheel 305 on the excitation wheel shaft 304... Three eccentric lifting blocks 306 with different lifting strokes alternately abut against the lifting rollers 307 on the vibrating frame 3. With the reset action of the first spring 309, the vibrating frame 3 is driven to drive the spray shaft tube 301 to perform periodic amplitude vertical vibration of 8mm, 12mm and 16mm along the guide top groove. The motor 7 also drives the bottom shaft 401 of the second excitation unit to rotate through the second synchronous belt. The bottom shaft 401 drives the variable eccentricity protrusion 404 to rotate synchronously. Through the abutment with the excitation roller 405 and the reset action of the second spring 406, the excitation frame 4 is driven to drive the drying cone 5 to complete vertical reciprocating vibration while rotating along the guide bottom groove. The hot air generator 8 of the hot air supply unit outputs low-temperature hot air at 75°C, which is sent into the annular air distribution chamber 802 of the conveying shaft cylinder 2 and the air guide channel of the spray shaft pipe 301 through the three-way pipe 801. Then, it is sprayed outward and inward through the spray outer hole 202 and spray inner hole 302, which are perpendicular to the axis of the conveying shaft cylinder 2. At the same time, the electric heating jacket 502 maintains a constant temperature of 80°C to radiate heat the wall of the drying cone 5. This, together with the hot air convection heating, forms a composite low-temperature drying system. After the low-temperature hot crystallized material of basic copper carbonate falls onto the rotating centrifugal cone 201, it is centrifugally thrown out by the dispersion guide plate 205 to form a uniformly dispersed material curtain. It first forms vertical convection with the hot air sprayed from the spray outer hole 202 to complete the initial drying of the surface moisture of the outer cavity. As the low-temperature hot crystallized material of basic copper carbonate spirals down along the inner wall of the drying cone 5 at a 35° angle, it is continuously dehydrated by constant temperature radiant heating of the cylinder wall. Meanwhile, the rotation and vibration coupling action of the drying cone 5 prevents the low-temperature thermal crystallization material of basic copper carbonate from sticking to the wall and forming scale. After preliminary drying, the low-temperature thermal crystallization material of basic copper carbonate enters the inner cavity of the conveying shaft cylinder 2 through the circulation return port 204. It is conveyed upward by the spiral conveying blades 303 that rotate in the opposite direction to the conveying shaft cylinder 2. During the conveying process, the low-temperature thermal crystallization material of basic copper carbonate is continuously loosened by the amplitude vibration of the spiral conveying blades 303, breaking the agglomerated state. It forms a vertical penetrating contact with the hot air sprayed from the spray inner hole 302, completing the deep drying of the bound water inside the inner cavity. The dehydrated low-temperature thermal crystallization material of basic copper carbonate is sent back to the centrifugal cone 201 through the circulation outlet 203, forming a closed-loop process of circulating drying. During the drying process, the temperature and humidity sensor 503 collects the temperature and humidity data in the drying chamber in real time and transmits it to the controller 6. Based on the comparison between the real-time humidity data and the preset threshold, the controller 6 sends a control command to the linear drive module 402 of the second excitation unit. By adjusting the axial position of the variable eccentricity protrusion 404, the vibration amplitude of the drying cone 5 is continuously and dynamically adjusted. During the high moisture content stage of the low-temperature thermal crystallization material of basic copper carbonate, the amplitude is increased to enhance the material dispersion and hot air contact efficiency. During the low moisture content stage of the low-temperature thermal crystallization material of basic copper carbonate, the amplitude is reduced to avoid material crystal damage and dust. At the same time, the pressure sensor 504 collects the air pressure data in the chamber in real time. When the air pressure exceeds the safety threshold, the controller 6 automatically controls the opening and closing of the pressure relief valve 505 to complete the pressure relief and ensure the safety and stability of the drying process. In the final stage, when the humidity sensor 503 reports that the humidity in the drying chamber remains stable within the preset qualified threshold range, the controller 6 determines that the low-temperature thermal crystallization material of basic copper carbonate has reached the standard for drying. Then, it sequentially shuts off the hot air generator 8, the electric heating jacket 502, and the motor 7. After the pressure relief valve 505 confirms that the internal air pressure has dropped to normal pressure and the temperature sensor 503 reports that the internal temperature has dropped to a safe range, the discharge control valve is opened. The dried basic copper carbonate finished product is discharged through the discharge pipe 507. Then, the inner cavity of the device is cleaned and purged to complete the final operation of the entire process.

Claims

1. An integrated drying device for low-temperature thermal crystallization of basic copper carbonate, comprising a base frame (1), characterized in that, Also includes: The conveying shaft cylinder (2) is rotatably mounted on the base frame (1). A centrifugal cone disc (201) is fixedly mounted on the upper part of the conveying shaft cylinder (2). An external injection hole (202) is arrayed on its outer circumference and at the position corresponding to the lower part of the centrifugal cone disc (201). A circulating discharge port (203) is arrayed on the upper part of the conveying shaft cylinder (2), and a circulating return port (204) is arrayed on the lower part. The vibrating frame (3) is slidably connected to the base frame (1), and a first excitation unit is provided between the two to drive the vibrating frame (3) to periodically change amplitude vibration. The vibrating frame (3) is rotatably mounted with a jetting shaft tube (301). The outer periphery of the jetting shaft tube (301) is provided with jetting inner holes (302). The jetting shaft tube (301) is fixedly mounted with a spiral conveying blade (303) that fits against the conveying shaft cylinder (2). The oscillating frame (4) is slidably connected to the base frame (1), and the base frame (1) is provided with a second excitation unit that drives the oscillating frame (4) to vibrate vertically; A drying cone (5) is sleeved on the outside of the conveying shaft (2). The drying cone (5) is rotatably connected to the agitator (4) through a bearing. An elastic guide ring plate (501) is rotatably connected between the drying cone (5) and the conveying shaft (2). An electric heating jacket (502) is fixedly installed on the outer periphery of the drying cone (5). A temperature and humidity sensor (503), a pressure sensor (504), and a pressure relief valve (505) are respectively installed on the top of the drying cone (5). The controller (6) is fixed on the base frame (1). The data terminal of the temperature and humidity sensor (503) is connected to the controller (6). The controller (6) is configured to dynamically adjust the amplitude of the oscillating frame (4) based on the feedback from the temperature and humidity sensor (503). The motor (7) is fixed on the base frame (1) and is connected to the drying cone (5) and the conveying shaft (2) for transmission. The hot air supply unit is configured to communicate with the outer nozzle (202) and the inner nozzle (302).

2. The integrated drying device for low-temperature thermal crystallization of basic copper carbonate according to claim 1, characterized in that, The top of the drying cone (5) is fixedly equipped with a feed control valve (506) and a pressure sensor (504). The data terminals of the pressure sensor (504) are connected to the controller (6). The bottom of the base frame (1) is equipped with a discharge pipe (507). The top of the discharge pipe (507) is rotatably connected to the conveying shaft cylinder (2). The discharge control valve is installed on the discharge pipe (507).

3. The integrated drying device for low-temperature thermal crystallization of basic copper carbonate according to claim 1, characterized in that, The centrifugal cone (201) is arrayed with a dispersion guide plate (205). The angle between the cone surface of the centrifugal cone (201) and the horizontal plane is 40°. The angle between the cone surface of the drying cone (5) and the horizontal plane is 35°. The circulating discharge port (203) is located above the centrifugal cone (201). The circulating return port (204) is located below the spray hole (202).

4. The integrated drying device for low-temperature thermal crystallization of basic copper carbonate according to claim 1, characterized in that, The first excitation unit includes an excitation wheel shaft (304) rotatably connected to the base frame (1). A first synchronous belt is drivenly connected to the output shaft of the motor (7). The first synchronous belt is drivenly connected to the excitation wheel shaft (304). A base wheel (305) is fixedly mounted on the excitation wheel shaft (304). Three eccentric lifting blocks (306) are arrayed on the base wheel (305) along the circumferential direction. Lifting rollers (307) are rotatably connected to the vibrating frame (3). When the excitation wheel shaft (304) rotates, the three... Eccentric lifting blocks (306) alternately abut against lifting rollers (307), and the abutment strokes of the three eccentric lifting blocks (306) against lifting rollers (307) are different. A hollow rotating shaft (308) is rotatably installed on the top of the conveying shaft cylinder (2). Both the conveying shaft cylinder (2) and the hollow rotating shaft (308) are connected to the excitation wheel shaft (304) for transmission. A limiting ring is fixedly installed on the top of the spray shaft tube (301). A first spring (309) is installed between the limiting ring and the hollow rotating shaft (308).

5. The integrated drying device for low-temperature thermal crystallization of basic copper carbonate according to claim 4, characterized in that, The hollow rotary shaft (308) has a spline hole inside, and the top of the injection shaft tube (301) has a spline section. The spline section is slidably connected to the spline hole. The cross-section of the spline section and the spline hole are both regular hexagonal. Two intermediate bevel gears are fixedly installed on the excitation wheel shaft (304). Both the hollow rotary shaft (308) and the conveying shaft tube (2) are equipped with driven bevel gear rings. The two driven bevel gear rings are respectively meshed with the two intermediate bevel gears. The two driven bevel gear rings are symmetrically arranged with the horizontal plane where the axis of the excitation wheel shaft (304) is located as the axis.

6. The integrated drying device for low-temperature thermal crystallization of basic copper carbonate according to claim 5, characterized in that, The base frame (1) has a guide top groove on its top, and the vibrating frame (3) has a top slider fixedly mounted on it. The top slider is slidably connected to the guide top groove.

7. The integrated drying device for low-temperature thermal crystallization of basic copper carbonate according to claim 1, characterized in that, The second excitation unit includes a bottom shaft (401) rotatably connected to the base frame (1) and a linear drive module (402) fixedly mounted on the base frame (1). A second synchronous belt is drivenly connected to the output shaft of the motor (7). The second synchronous belt is drivenly connected to the bottom shaft (401). An amplitude adjustment plate (403) is drivenly connected to the linear drive module (402). A variable eccentricity protrusion (404) is rotatably connected to the amplitude adjustment plate (403). The variable eccentricity protrusion (404) is drivenly connected to the bottom shaft (401). An excitation roller (405) is rotatably mounted on the excitation frame (4). The variable eccentricity protrusion (404) abuts against the excitation roller (405). A second spring (406) is mounted on the top surface of the excitation frame (4). The other end of the second spring (406) is fixedly connected to the base frame (1).

8. The integrated drying device for low-temperature thermal crystallization of basic copper carbonate according to claim 7, characterized in that, The base frame (1) is provided with a guide groove, and the bottom slider is rotatably installed on the agitator frame (4). The bottom slider is slidably connected to the guide groove. The axis of the variable eccentricity protrusion (404) is provided with a shaft hole. The shaft hole is slidably connected to the bottom shaft (401). The cross-sections of the shaft hole and the bottom shaft (401) are both regular hexagons.

9. The integrated drying device for low-temperature thermal crystallization of basic copper carbonate according to claim 2, characterized in that, The hot air supply unit includes a hot air generator (8) fixed on the base frame (1). The air outlet of the hot air generator (8) is connected to a three-way pipe (801). One end of the three-way pipe (801) is connected to a rotary joint. An annular air distribution chamber (802) is opened inside the conveying shaft cylinder (2). The rotary joint is rotatably connected to the annular air distribution chamber (802). Each of the spray outer holes (202) is connected to the annular air distribution chamber (802). A drying air guide chamber (803) is opened at the bottom of the unloading pipe (507). An air guide channel with an open bottom is opened inside the spray shaft pipe (301). The bottom end of the air guide channel is connected to the drying air guide chamber (803). The axes of the spray outer holes (202) and the spray inner holes (302) are perpendicular to the axis of the conveying shaft cylinder (2).

10. The integrated drying device for low-temperature thermal crystallization of basic copper carbonate according to claim 1, characterized in that, A transmission gear column (508) is rotatably connected to the base frame (1), and a passive gear ring (509) is fixedly mounted on the drying cone (5). The transmission gear column (508) meshes with the passive gear ring (509). The axial length of the teeth of the transmission gear column (508) is 6 to 15 times the axial length of the teeth of the passive gear ring (509). Both the transmission gear column (508) and the output shaft of the motor (7) are equipped with linkage bevel gears, and the two linkage bevel gears mesh orthogonally.

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