Efficient energy-saving bentonite automatic drying equipment
By combining electromagnetic induction heating of the conductive material guide plate with the cleaning components, the problems of high energy consumption and bentonite sludge in the drum dryer are solved, achieving a highly efficient and energy-saving bentonite drying effect.
Patent Information
- Application Number
- CN202511300754.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-12
- Publication Date
- 2025-11-18
AI Technical Summary
Existing rotary drum dryers have high energy consumption, are prone to damage, and the dried bentonite easily falls and pollutes the environment. In addition, they have low heat exchange efficiency.
The guide plate, made of conductive material, is heated by electromagnetic induction. Combined with cleaning and agitation components, it achieves rapid heating and effective cleaning, reducing energy consumption and preventing bentonite from falling off.
This technology enables highly efficient and energy-saving bentonite drying, reducing equipment energy consumption and maintenance costs while improving heat exchange efficiency and product quality.
Smart Images

Figure CN120970221A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of bentonite drying, in particular to a high-efficiency and energy-saving automatic bentonite drying equipment. BACKGROUND
[0002] Bentonite drying is a key pretreatment link in bentonite processing, specifically refers to the process of removing excess moisture (including surface adsorbed water and part of interlayer water) in natural bentonite by using thermal evaporation through special drying equipment (such as belt dryer, drum dryer, etc.). The process aims to accurately control the moisture content of bentonite from high humidity after mining (usually up to 30%-40%) to a lower standard suitable for subsequent processing (such as grinding, modification) and application (such as 8%-12%), while attention must be paid to using a mild thermal system to avoid damage to its layered structure and activity due to overheating, so as to ensure that the product after drying can maintain good adhesion, adsorption and cation exchange capacity and other core performances.
[0003] In today's drum dryer, the material is lifted, scattered down, and repeatedly exchanged to dry. This process requires continuous high-temperature gas into the drum to ensure that the temperature inside the drum can evaporate the moisture inside the bentonite. The continuous gas needs a blower to work continuously. During long-time operation, not only is the blower itself high in heat, but it also has a high probability of damage. In addition, the energy consumption of continuous operation is large, and the weight of the bentonite after drying is light, which can easily fall after ventilation and pollute the surrounding environment. SUMMARY
[0004] To solve the above problems in the prior art, the present application provides a high-efficiency and energy-saving automatic bentonite drying equipment, which has the advantages of energy saving and high efficiency.
[0005] To achieve the above purpose, the present application provides the following technical scheme: a drying outer cylinder and a drying inner cylinder rotating in the drying outer cylinder are provided, at least two material guiding assemblies and a cleaning assembly are arranged in the drying inner cylinder, a coil is further arranged on the outer circumferential side of the drying inner cylinder, and the coil is fixedly installed on the drying outer cylinder through a conductive interface; The material guiding assembly comprises a material guiding plate, the material guiding plate is spirally arranged and installed on the inner wall of the drying inner cylinder, the material guiding plate is detachably installed, a sliding rail groove is formed on the inner side end surface of the material guiding plate, and a plurality of push pieces are fixedly arranged on the outer side end surface of the material guiding plate, and the push pieces are located between the drying outer cylinder and the drying inner cylinder.
[0006] Preferably, the two sides of the drying inner cylinder are installed in the drying outer cylinder through support bearings, an inner cylinder gear is further fixedly arranged at the outer circumferential edge of the drying inner cylinder, the material of the drying inner cylinder is a non-conductive material, and the material of the material guiding plate is a conductive material.
[0007] Preferably, the cleaning assembly comprises a push-pull rod and a cleaning bracket, the cleaning bracket is rotatably installed on the push-pull rod, and the cleaning bracket further comprises at least two supporting rods, one end of the supporting rod is rotatably installed with a cleaning clamping piece.
[0008] Preferably, one side of the cleaning clamping piece is provided with two scraping rods, the scraping rods are in close contact with the surface of the guide plate, and a pulley is rotatably installed at the middle of the cleaning clamping piece.
[0009] Preferably, the push-pull rod extends outwardly to penetrate the drying outer cylinder, and a pull ring is arranged on the push-pull rod.
[0010] Preferably, the drying outer cylinder is further provided with a poking assembly, and the poking assembly is used for poking a poking piece to make it vibrate. The poking assembly comprises a poking rod in the drying outer cylinder, the poking rod is located between the coil and the drying inner cylinder, and the material of the poking rod is also a non-conductive material.
[0011] Preferably, the two sides of the poking rod are fixed with lead screws, the lead screws extend outwardly to penetrate the drying outer cylinder and are in sliding connection with the drying outer cylinder, a nut is rotatably connected in the drying outer cylinder, the lead screws penetrate the nut and are in threaded connection with the nut, a belt is sleeved on the outer periphery of the nut, and the belt is powered by a sub-motor at the middle.
[0012] Preferably, the bottom of the drying outer cylinder is provided with a main motor, a transmission gear is installed on the main motor, the transmission gear is in power connection with the drying inner cylinder, and the transmission gear drives the drying inner cylinder to rotate.
[0013] Preferably, one side end face of the drying outer cylinder is movably connected with a feeding pipe, the feeding pipe is connected with a feeding device, and a discharging port is formed in the bottom of the outer periphery of the side of the drying outer cylinder away from the feeding pipe.
[0014] Preferably, the outer periphery of the drying outer cylinder is further fixed with a supporting leg and a baffle, the supporting leg is provided with a placing block, and the baffle is located at the discharging port.
[0015] Compared with the prior art, the present application provides a high-efficiency energy-saving bentonite automatic drying equipment, which has the following beneficial effects: 1. The high-efficiency energy-saving bentonite automatic drying equipment, the coil is used for electromagnetic induction heating of the guide plate, the guide plate can be quickly heated, and the bentonite in the drying inner cylinder is dried by the waste heat generated by the guide plate, so that the overall heating process time is short, and the required energy is greatly reduced, so that the drying equipment has the advantages of high efficiency and energy saving, and through electromagnetic induction heating, the bentonite is not blown out in large quantities, and the surrounding environment is not polluted.
[0016] 2. The high-efficiency energy-saving bentonite automatic drying equipment, the scraper rod is arranged on the cleaning support, so that the scraper rod can scrape off the bentonite adhered to the surface of the guide plate, avoid too much bentonite on the guide plate, affect the heat transfer efficiency, and avoid the adhesion of too much bentonite, increase the load of the drying inner cylinder, increase the burden of the motor, increase the energy consumption of the motor, and reduce the service life of the motor.
[0017] 3. The high-efficiency energy-saving bentonite automatic drying equipment, when the bentonite is too tight on the guide plate, that is, the bentonite is carbonized and not easy to be scraped off by the scraper rod, at this time, the stirring piece is abutted with the stirring rod by moving the stirring rod, low-frequency vibration is generated, the low-frequency vibration is conducted to the guide plate, the bentonite on the guide plate is vibrated and shaken off, the bentonite is loosened, and then the bentonite is scraped off by the scraper rod of the cleaning assembly. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 is a schematic view of the three-dimensional structure of the present application; Figure 2 is a schematic view of the half-section structure of the present application; Figure 3 is a schematic view of the three-dimensional structure of the present application; Figure 2 is a schematic view of the enlarged structure at A in the present application; Figure 4 is a schematic view of the enlarged structure at B in the present application; Figure 2 is a schematic view of the internal structure of the present application; Figure 5 is a schematic view of the guide assembly structure of the present application; Figure 6 is a schematic view of the guide plate structure of the present application; Figure 7 is a schematic view of the cleaning support structure of the present application. Figure 8
[0019] In the diagram: 10. Drying outer cylinder; 101. Support leg; 102. Mounting block; 103. Baffle; 11. Feed pipe; 12. Discharge port; 20. Drying inner cylinder; 201. Support bearing; 202. Inner cylinder gear; 21. Main motor; 211. Transmission gear; 30. Guide plate; 301. Slide rail groove; 302. Paddle; 31. Push-pull rod; 311. Pull ring; 32. Cleaning bracket; 321. Cleaning clamp; 3211. Pulley; 40. Paddle lever; 401. Lead screw; 402. Nut; 403. Belt; 41. Auxiliary motor; 50. Coil; 501. Conductive interface. Detailed Implementation
[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0021] like Figures 1-8 As shown, the drying drum includes an outer drying drum 10 and an inner drying drum 20 that rotates inside the outer drying drum 10. The inner drying drum 20 is equipped with at least two guide components and a cleaning component. A coil 50 is also surrounded on the outer periphery of the inner drying drum 20. The coil 50 is fixedly installed on the outer drying drum 10 through a conductive interface 501. The conductive interface 501 is electrically connected to an external wire for energizing the coil 50. A main motor 21 is installed at the bottom of the outer drying drum 10. A transmission gear 211 is installed on the main motor 21. The transmission gear 211 is poweredly connected to the inner drying drum 20, driving the inner drying drum 20 to rotate. During the drying process of bentonite, its drying temperature needs to reach 80-20℃ at the discharge port 1. Its drying time is generally 30 minutes to 2 hours on the guide plate, which is adaptively adjusted according to the initial temperature of the bentonite. In the drum-type drying process, multiple drying is usually required to meet the drying time requirements. That is, the dried bentonite will be transported back to the feed pipe 11 for multiple drying cycles.
[0022] The side end face of the drying outer cylinder 10 is movably connected with a feeding pipe 11, the feeding pipe 11 is connected with a feeding device, so that the bentonite to be dried is transported into the drying inner cylinder 20 through the feeding pipe 11, the outer peripheral side bottom of the drying outer cylinder 10 far away from the feeding pipe 11 is provided with a discharging port 12, the bentonite is transported out of the discharging port 12 after drying, and is conveyed out by manual or a conveying belt. The outer peripheral side of the drying outer cylinder 10 is further fixed with a supporting leg 101 and a baffle 103, the supporting leg 101 is provided with a placing block 102, and the baffle 103 is located at the discharging port 12. The baffle 103 is used for isolating the motor from the bentonite, so that the bentonite does not excessively enter the motor and the motor is not damaged. The placing block 102 is a base of the motor, and a controller for controlling the start and stop of the motor is also arranged.
[0023] The material guiding assembly comprises a material guiding plate 30, the material guiding plate 30 is spirally arranged and is installed on the inner wall of the drying inner cylinder 20. The spirally arranged material guiding plate 30 rotates together with the drying inner cylinder 20 in the process of rotation of the drying inner cylinder 20, so that the bentonite entering from the feeding pipe 11 is transported to the discharging port 12, and the bentonite is also stirred, so that the bentonite is uniformly heated and the drying effect is better. The material guiding plate 30 is detachably installed, so that the material guiding plate 30 is in a separated state with the drying inner cylinder 20, and the material guiding plate 30 is convenient to replace. The inner side end face of the material guiding plate 30 is provided with a sliding rail groove 301, and the outer side end face is fixed with a plurality of push pieces 302. The push pieces 302 are located between the drying outer cylinder 10 and the drying inner cylinder 20.
[0024] The two sides of the drying inner cylinder 20 are installed in the drying outer cylinder 10 through supporting bearings 201, and the outer peripheral side edge of the drying inner cylinder 20 is further fixed with an inner cylinder gear 202. The inner cylinder gear 202 is engaged with a transmission gear 211. The material of the drying inner cylinder 20 is a non-conductive material, and the material of the material guiding plate 30 is a conductive material. The non-conductive material of the drying inner cylinder 20 is mostly non-metallic material, such as ceramic, glass and the like. Because they are not conductive, they will not be affected by the heating of the coil 50. A small part of metal can be copper and its alloy, aluminum and its alloy. Because the resistivity of the two is extremely low and non-magnetic, a very high frequency and power supply is needed to effectively heat, and the power supply of the coil 50 is low, so this part of metal can be used. The preferred material is ceramic, which has the advantages of high temperature resistance, smooth surface and prevention of adhesion, and is more suitable for drying bentonite. The conductive material of the material guiding plate 30 is mostly metallic material, such as carbon steel, alloy steel, cast iron and the like. Such ferromagnetic materials have high magnetic permeability and high resistivity, and are beneficial to hysteresis loss and eddy current effect, have very high heating efficiency and extremely fast speed. The preferred material is carbon steel, which has high strength and good heat resistance, and its performance will not be greatly reduced after frequent and repeated heating.
[0025] So by the coil 50 power, its internal will produce magnetic pole, conductive material in the magnetic pole will be heated by eddy current induction, so that the conductive plate 30 quickly improve temperature, because the thickness of the conductive plate 30 is thin, its heating to 120 ℃ time is generally in 5-10 s, its heating efficiency is fast, and because the air flowability in the drying inner cylinder 20 is low, most of the heat is in the drying inner cylinder 20, so the heat dissipation is slow, the time required for the temperature of the conductive plate 30 to drop from 120 ℃ to 80 ℃ is generally changed according to the external environment temperature, generally for 10-30 minutes, and the drying outer cylinder 10 and the drying inner cylinder 20 double-layer insulation, the temperature drop will be more slowly, so after the conductive plate 30 quickly reaches the set temperature, the shell stops heating, through its own heat dissipation, the remaining heat can make the whole temperature in the drying inner cylinder 20 rise, and the conductive plate 30 is provided with a temperature sensor, when the temperature of the conductive plate 30 drops to 80 ℃, the coil 50 will be started again to heat the conductive plate 30, and stop heating after heating to 120 ℃, so as to cycle, then a dehumidifier (not shown in the figure) is arranged on the outer periphery of the drying outer cylinder 10 away from the feeding pipe 11, which can remove the water vapor evaporated in the drying inner cylinder 20, and can increase the drying effect of the bentonite, the remaining heat generated by the conductive plate 30 is used to dry the bentonite in the drying inner cylinder 20, the whole heating process time is short, and the required energy is greatly reduced, so that the drying equipment has the advantages of high efficiency and energy saving.
[0026] The cleaning assembly comprises a push-pull rod 31 and a cleaning bracket 32, the cleaning bracket 32 is rotatably installed on the push-pull rod 31, an end face of the cleaning bracket 32 is provided with an end face bearing, so that the cleaning bracket 32 can rotate more easily on the push-pull rod 31, the cleaning bracket 32 further comprises at least two supporting rods, one end of the supporting rod is rotatably installed with a cleaning clamp 321, one side of the cleaning clamp 321 is provided with two scraping rods, the scraping rods are in close contact with the surface of the guide plate 30, a sliding groove 301 is formed in the middle of the cleaning clamp 321, and a pulley 3211 is rotatably installed in the sliding groove 301, the pulley 3211 can also scrape the swelling soil accumulated in the sliding groove 301 during movement, the push-pull rod 31 extends outwardly to the drying outer cylinder 10, the push-pull rod 31 is provided with a pull ring 311, the pull ring 311 is connected with an external reciprocating mechanism, the push-pull rod 31 is pulled by the machine or manually, so that the cleaning bracket 32 is displaced, the movement of the cleaning bracket 32 drives the cleaning clamp 321 to move in close contact with the surface of the guide plate 30, since the surface of the guide plate 30 is provided with a curved surface, the cleaning bracket 32 also rotates when moving, and the cleaning clamp 321 also rotates, so that the scraping rods on the cleaning clamp 321 are always in close contact with the surface of the guide plate 30, and the material on the surface of the guide plate 30 is scraped off, wherein the cleaning clamp 321 slides in the sliding groove 301, the sliding groove 301 functions as a guide rail, so that the cleaning bracket 32 and the scraping rods move along the spiral curve of the guide plate 30, so that the scraping rods are always in close contact with the surface of the guide plate 30, that is, the scraping rods can scrape the swelling soil adhered to the surface of the entire guide plate 30 by the arrangement of the scraping rods on the cleaning bracket 32, so that the guide plate 30 is not affected by too much swelling soil, the heat conduction efficiency is not affected, the heat exchange process with other swelling soil is not affected, and the adhesion of too much swelling soil is also avoided, so that the load of the drying inner cylinder 20 is not increased, the burden of the motor is not increased, the energy consumption of the motor is not increased, and the service life of the motor is not reduced.
[0027] The drying outer cylinder 10 is internally provided with a poking assembly, which is used for poking the poking piece 302 to make it vibrate. The poking assembly comprises a poking rod 40 in the drying outer cylinder 10, which is located between the coil 50 and the drying inner cylinder 20. The material of the poking rod 40 is also a non-conductive material, which is consistent with the material of the drying inner cylinder 20. The two sides of the poking rod 40 are fixedly provided with lead screws 401, which extend outwardly and penetrate through the drying outer cylinder 10 and are in sliding connection with the drying outer cylinder 10. The lead screws 401 penetrate through and are in threaded connection with a nut 402, which is rotatably connected in the drying outer cylinder 10. A belt 403 is sleeved on the outer circumferential side of the nut 402 and is powered by a sub motor 41 at the middle portion. The poking piece 302 is provided with elasticity. When the bentonite is too tightly adhered to the guide plate 30, that is, the bentonite is carbonized and is not easy to be scraped off by the scraper, the poking rod 40 can be pushed inwardly at this time, so that the poking rod 40 can abut against the poking piece 302. In the process of rotation of the drying inner cylinder 20, the poking piece 302 is bent after abutting against the poking rod 40 and is restored after passing over the poking rod 40. At this time, the poking piece 302 will vibrate at a low frequency, which is conducted to the guide plate 30 to vibrate and shake off the bentonite thereon and can vibrate and shake off the bentonite that may be pressed in the sliding rail groove 301, so that the bentonite is loosened. Then, the bentonite that is adhered can be more easily scraped off by the scraper of the cleaning assembly.
[0028] Working principle: In use, the bentonite to be dried can be conveyed into the drying inner cylinder 20 through the feeding pipe 11 by the external feeding equipment. Then, the main motor 21 is started to drive the inner cylinder gear 202 through the transmission gear 211 to rotate the drying inner cylinder 20. The bentonite enters the drying inner cylinder 20. At the same time, the coil 50 is started to perform electromagnetic induction heating on the guide plate 30, so that the guide plate 30 rapidly rises to a set temperature. Then, the coil 50 is stopped, and the heat in the guide plate 30 is dissipated to the internal environment of the drying inner cylinder 20 to make the whole internal temperature rise. Then, the rotation of the drying inner cylinder 20 transports the bentonite to one side of the discharge port 12 by one-side stir-frying of the guide plate 30, and also exchanges heat with the guide plate 30 to dry the bentonite. When the temperature of the guide plate 30 decreases to the set temperature, the coil 50 is started again to heat the guide plate 30, so that the processing can be continuously performed.
[0029] When the surface of the guide plate 30 needs to be cleaned, the cleaning assembly can be used when the equipment is stopped or running. When in use, the push-pull rod 31 can be pulled to move the cleaning bracket 32. The cleaning bracket 32 moves, and since the guide plate 30 is spirally arranged, it will rotate by itself. When the equipment is running, the cleaning bracket 32 will also rotate by itself, so as not to affect the normal operation of the equipment. The movement of the cleaning bracket 32 also drives the cleaning clamping piece 321 to slide on the guide plate 30. Since the surface of the guide plate 30 is curved, the cleaning clamping piece 321 will also rotate by itself, so that the scraper rod adapts to the surface of the guide plate 30 and is always in a state of adhesion. By driving the cleaning bracket 32 to reciprocate one cycle through the push-pull rod 31, the bentonite adhered on the surface of the guide plate 30 can be completely scraped off.
[0030] When the bentonite on the surface of the guide plate 30 is carbonized, it is difficult to clean with the scraper rod, that is, it is difficult for a person to pull the push-pull rod 31. At this time, the auxiliary motor 41 needs to be started to drive the nut 402 to rotate through the belt 403, so as to drive the push rod 40 to move to one side of the drying inner cylinder 20 through the screw rod 401, so that the push rod 40 is close to the abutting piece 302 and gradually abuts against the abutting piece 302. When the push rod 40 moves to abut against the abutting piece 302, the abutting piece 302 driven by the drying inner cylinder 20 rotates to abut against the conductive push rod 40, is bent by the conductive push rod 40, and then restores after passing the push rod 40. In the moment of restoration, low-frequency vibration is generated. The vibration is transmitted to the guide plate 30. Long-time and multiple vibrations can loosen the bentonite adhered on the guide plate 30, so that the cleaning assembly is easier to clean. Then the push rod 40 can be controlled to move away from the drying inner cylinder 20, so that the push rod 40 is separated from the abutting piece 302 and does not contact. The equipment can be normally used.
[0031] In summary, the efficient and energy-saving bentonite automatic drying equipment can quickly heat the guide plate 30 through electromagnetic induction heating of the coil 50 on the guide plate 30, and the bentonite inside the drying inner cylinder 20 is dried through the waste heat generated by the guide plate 30, so the overall heating process time is relatively short, and the required energy is greatly reduced, so that the drying equipment has the advantages of high efficiency and energy saving; through the setting of the scraper rod on the cleaning support 32, the scraper rod can scrape off the bentonite adhered to the surface of the entire guide plate 30, avoiding too much bentonite on the guide plate 30 affecting its heat conduction efficiency and heat exchange process with other bentonite, and also avoiding the adhesion of too much bentonite, which increases the load of the drying inner cylinder 20, thereby increasing the burden of the motor and increasing the energy consumption, reducing the service life of the motor; when the bentonite is too tightly adhered to the guide plate 30, that is, the bentonite is carbonized and not easy to be scraped off by the scraper rod, at this time, the push rod 40 is moved, so that the push piece 302 abuts against the push rod 40 to generate low-frequency vibration, the low-frequency vibration is conducted to the guide plate 30, and the bentonite thereon is vibrated and shaken off to loosen the bentonite, and then the bentonite adhered is scraped off more easily by the scraper rod of the cleaning assembly.
[0032] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.
[0033] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A high-efficiency energy-saving bentonite automatic drying device, comprising a drying outer cylinder (10) and a drying inner cylinder (20) rotating in the drying outer cylinder (10), characterized in that: The drying inner cylinder (20) is provided with at least two material guiding assemblies and a cleaning assembly, and the outer periphery of the drying inner cylinder (20) is further surrounded by a coil (50), which is fixedly installed on the drying outer cylinder (10) through a conductive interface (501); The material guiding assembly comprises a material guiding plate (30), which is spirally arranged and installed on the inner wall of the drying inner cylinder (20), and the material guiding plate (30) is detachably installed, and the inner side end face of the material guiding plate (30) is provided with a sliding rail groove (301), and the outer side end face is fixedly provided with a plurality of push pieces (302), which are located between the drying outer cylinder (10) and the drying inner cylinder (20).
2. The high-efficiency energy-saving bentonite automatic drying device according to claim 1, characterized in that: The two sides of the drying inner cylinder (20) are installed in the drying outer cylinder (10) through support bearings (201), and the outer periphery edge of the drying inner cylinder (20) is further fixedly provided with an inner cylinder gear (202), and the material of the drying inner cylinder (20) is a non-conductive material, and the material of the material guiding plate (30) is a conductive material.
3. The high-efficiency energy-saving bentonite automatic drying device according to claim 1, characterized in that: The cleaning assembly comprises a push-pull rod (31) and a cleaning bracket (32), the cleaning bracket (32) is rotatably installed on the push-pull rod (31), and the cleaning bracket (32) further comprises at least two support rods, one end of the support rod is rotatably installed with a cleaning clamping piece (321).
4. The high-efficiency energy-saving bentonite automatic drying device according to claim 3, characterized in that: One side of the cleaning clamping piece (321) is provided with two scraping rods, which are in close contact with the surface of the material guiding plate (30), and a pulley (3211) is rotatably installed at the middle of the cleaning clamping piece (321), and the pulley (3211) is located in the sliding rail groove (301).
5. The high-efficiency energy-saving bentonite automatic drying device according to claim 3, characterized in that: The push-pull rod (31) extends outwardly to penetrate the drying outer cylinder (10), and the push-pull rod (31) is provided with a pull ring (311).
6. The high-efficiency energy-saving bentonite automatic drying device according to claim 1, characterized in that: The drying outer cylinder (10) is further provided with a pushing assembly, which is used for pushing the push piece (302) to vibrate; The pushing assembly comprises a pushing rod (40) in the drying outer cylinder (10), and the pushing rod (40) is located between the coil (50) and the drying inner cylinder (20), and the material of the pushing rod (40) is also a non-conductive material.
7. The high-efficiency energy-saving bentonite automatic drying device according to claim 6, characterized in that: The two sides of the pushing rod (40) are fixedly provided with lead screws (401), which extend outwardly to penetrate the drying outer cylinder (10) and are in sliding connection with the drying outer cylinder (10), the drying outer cylinder (10) is rotatably connected with a nut (402), the lead screw (401) penetrates the nut (402) and is in threaded connection with the nut (402), the outer periphery of the nut (402) is sleeved with a belt (403), and the belt (403) is powered by a sub-motor (41) at the middle.
8. The high-efficiency energy-saving bentonite automatic drying device according to claim 1, characterized in that: The bottom of the drying outer cylinder (10) is provided with a main motor (21), the main motor (21) is installed with a transmission gear (211), the transmission gear (211) is in power connection with the drying inner cylinder (20), and drives the drying inner cylinder (20) to rotate.
9. The high-efficiency energy-saving bentonite automatic drying device according to claim 1, characterized in that: One side end face of the drying outer cylinder (10) is movably connected with a feeding pipe (11), the feeding pipe (11) is connected with a feeding device, and a discharging port (12) is formed in the outer peripheral side bottom of the side, away from the feeding pipe (11), of the drying outer cylinder (10).
10. The high-efficiency energy-saving bentonite automatic drying device according to claim 9, characterized in that: The outer peripheral side of the drying outer cylinder (10) is further fixed with a supporting leg (101) and a baffle (103), the supporting leg (101) is provided with a placing block (102), and the baffle (103) is located at the discharging port (12).