Movable roller of pellet drying machine

Abstract

The utility model discloses a movable roller of a pill drying machine. The movable roller comprises a drying machine box, a sliding connection assembly, a screen cylinder, a bracket trolley, a first guide rail set and a second guide rail set. A drying cavity and an equipment mounting cavity are formed in the drying machine box and are respectively provided with a heating and drying module and a driving device; the sliding connecting assembly comprises a box-shaped support, a connecting ring body and the like, and a moving structure at the bottom is matched with the guide rail. The two ends of the screen cylinder are connected to the connecting ring body, and a discharging mechanism and an observation sampling structure are arranged. Universal wheels are arranged at the bottom of the bracket vehicle. According to the device, through cooperation of the sliding connection assembly, the guide rail and the bracket trolley, the screen barrel can be conveniently moved out of the drying machine box, the problem that a traditional fixed screen barrel is inconvenient to clean due to narrow space is solved, comprehensive cleaning can be achieved, medicine residues are avoided, and the sanitary standard of equipment is improved. Meanwhile, the discharging efficiency is improved through the discharging mechanism and the observation sampling structure, sampling detection is facilitated, and the pellet drying quality is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of pharmaceutical equipment, and particularly relates to a movable type roller of pellet dryer. BACKGROUND

[0002] In the pharmaceutical industry, the pellet dryer is an important equipment for drying traditional Chinese medicine pellets and the like, and the screen drum inside the pellet dryer is a key component, which directly affects the drying effect and the quality of the medicine. The existing screen drum of the pellet dryer is usually fixedly installed inside the dryer box. This installation mode makes the space between the screen drum and the dryer box very narrow, and it is very inconvenient to clean manually. In order to avoid the corrosion and damage of mechanical parts caused by the contact of cleaning water with the transmission mechanism, the operator needs to avoid the feeding port and other positions, which makes it impossible to clean the screen drum comprehensively and thoroughly, and the medicine residues are easily left, which not only affects the drying quality of the subsequent pellets, but also may breed bacteria, threatening the safety of the medicine. In addition, the existing screen drum can only rely on manual operation for discharging, which is low in efficiency and easy to cause pollution. The sampling method also has limitations, and only sample inspection can be carried out at the feeding port or after discharging, which cannot monitor the material state in the drying process in real time, and it is difficult to ensure the stability of the product quality.

[0003] How to invent a movable type roller of pellet dryer to improve these problems has become a problem to be solved by the technical personnel in the field. CONTENT OF THE UTILITY MODEL

[0004] In order to make up for the above shortcomings, the utility model provides a movable type roller of pellet dryer, which aims at improving the problem that the existing screen drum is usually fixedly installed inside the dryer box, which makes it inconvenient to disassemble and assemble and the internal space is small, it is inconvenient to clean the screen drum, and the medicine residues are easily left, which not only affects the drying quality of the subsequent pellets, but also may breed bacteria.

[0005] The utility model is realized in this way: the movable type roller of pellet dryer comprises

[0006] The dryer box is internally divided into a drying cavity and an equipment installation cavity, a heating and drying module is arranged in the drying cavity, and a driving device is arranged in the equipment installation cavity.

[0007] The sliding connection assembly comprises two oppositely arranged box-shaped supports, coaxially arranged mounting holes are formed in the opposite side surfaces of the two box-shaped supports, a connecting ring body is rotatably connected in each mounting hole, the two box-shaped supports are fixedly connected through a connecting rod between the opposite side surfaces thereof, the bottom of each box-shaped support is open, and a moving structure is arranged between the bottoms of the two box-shaped supports.

[0008] The screen cylinder is located in the drying cavity of the drying machine box and is provided with a feeding port and a discharging port at two ends respectively, the two ends of the screen cylinder are fixedly connected in the corresponding connecting ring body on the side, the discharging port of the screen cylinder is provided with a discharging mechanism, and the side outer wall of the screen cylinder is provided with an observation and sampling structure.

[0009] The bracket vehicle comprises a frame body, four universal wheels are fixedly installed at the bottom of the frame body and are distributed in a rectangular shape;

[0010] The first guide rail group and the second guide rail group are arranged at the bottom of the drying cavity and the top of the frame body on both sides of the drying machine box, and each of the first guide rail group and the second guide rail group comprises two parallel guide rails, and each guide rail is connected with the moving structure arranged at the bottom of the two box-shaped supports.

[0011] In a preferred technical scheme of the utility model, two supporting wheels are rotatably connected to the bottom of the corresponding connecting ring body on both sides of the bottom end of the inner wall of each box-shaped support, and each supporting wheel is rotatably connected with the outer wall of the corresponding connecting ring body.

[0012] In a preferred technical scheme of the utility model, the moving structure comprises a plurality of rotating shafts which are parallelly arranged at the bottom between the two box-shaped supports, the two ends of each rotating shaft are provided with a connecting shaft and are rotatably connected with the two box-shaped supports through the connecting shaft, each connecting shaft extends into the inside of the corresponding box-shaped support and is fixedly connected with a moving wheel, and a part of each moving wheel extends to the outside of the box-shaped support through the opening arranged at the bottom of the corresponding box-shaped support and is connected with the guide rail in the first guide rail group or the second guide rail group.

[0013] In a preferred technical scheme of the utility model, the bottom inner wall of the drying cavity is provided with a pin hole block at the corresponding position of the two limiting blocks, and the top surface of each limiting block and the corresponding pin hole block is respectively provided with a insertion hole and a pin hole, a pin rod is inserted into the insertion hole, and the bottom end of the pin rod is inserted into the corresponding pin hole.

[0014] In a preferred technical scheme of the utility model, the outer wall of the one end of the screen cylinder discharging port is fixedly provided with a transmission mechanism connecting part, the transmission mechanism connecting part is located in the inside of the corresponding box-shaped support and is connected with the driving device in the equipment mounting cavity through the transmission structure, and a plurality of ring-shaped guiding plates which are uniformly distributed and extend from the feeding port to the discharging port in a spiral shape are integrally arranged on the inner wall of the screen cylinder.

[0015] In a preferred technical scheme of the utility model, the discharging mechanism comprises a discharging barrel and a discharging guide plate, the discharging barrel is in a hollow cylindrical structure which is recessed towards the inside of the screen drum, the discharging guide plate is integrally arranged on the inner wall of one end of the screen drum, the discharging guide plate is in a fan-shaped structure as a whole and forms a semi-closed structure with the opening with the inner wall of one end of the screen drum, the peripheral side wall and part of the side wall of the discharging barrel, and a communication opening is further arranged between the semi-closed structure and the inside of the discharging barrel.

[0016] In a preferred technical scheme of the utility model, the observation and sampling structure comprises a sealed observation screw cap, the sealed observation screw cap is threadedly connected in the inner wire fixing sleeve ring, the inner wire fixing sleeve ring is fixedly connected in the mounting slot opening in the outer wall of one side of the screen drum, a transparent visual window of transparent material is embedded in the middle of the sealed observation screw cap, and a knob is arranged at the center of the transparent visual window.

[0017] In a preferred technical scheme of the utility model, the two rails of the first guide rail group are fixedly installed with first limiting blocks at one end away from the bracket vehicle, and the two rails of each second guide rail group are fixedly installed with second limiting blocks at one end away from the drying machine box.

[0018] In a preferred technical scheme of the utility model, the two rails on the same side of the first guide rail group and the second guide rail group are provided with connecting structures at opposite ends, the connecting structures comprise a connecting part fixedly installed on one end of the guide rail of the first guide rail group and a connecting block fixedly connected on one end of the guide rail of the second guide rail group, a spring pin shaft is arranged on the connecting part, a pin hole corresponding to the spring pin shaft is formed in one side surface of the connecting block, and one end of the spring pin shaft is inserted into the pin hole.

[0019] The utility model discloses a movable roller of pellet dryer, which has the advantages that the screen drum can be conveniently removed from the drying machine box through the sliding connection assembly, the guide rail structure and the bracket vehicle, so that the space limitation is completely eliminated, the screen drum can be cleaned comprehensively and without dead angle, no drug residue is left, the cleaning effect and the equipment hygiene standard are improved. Meanwhile, the automatic discharging mechanism avoids the complicated operation of manual discharging and the possible pollution, the observation and sampling structure allows the operator to observe the drying condition of the material in the screen drum at any time and take samples for detection, which helps to adjust the drying process in real time, ensures the stability of the pellet drying quality and improves the product quality. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be considered as limiting the scope, and other related drawings can be obtained by those skilled in the art without creative labor on the basis of the drawings.

[0021] Figure 1 is a schematic perspective view of the overall structure provided by the embodiments of the present application;

[0022] Figure 2 is a schematic perspective view of the overall cross-sectional structure provided by the embodiments of the present application;

[0023] Figure 3 is a schematic perspective view of the overall cross-sectional structure of the other side provided by the embodiments of the present application;

[0024] Figure 4 is a schematic perspective view of the connection structure between the drying machine box and the bracket car provided by the embodiments of the present application;

[0025] Figure 5 is a schematic perspective view of the overall cross-sectional structure of the sliding connection assembly provided by the embodiments of the present application;

[0026] Figure 6 is a schematic perspective view of the overall cross-sectional structure of the screen drum provided by the embodiments of the present application;

[0027] Figure 7 is a schematic perspective view of the overall cross-sectional structure of the discharging mechanism provided by the embodiments of the present application;

[0028] Figure 8 is a schematic perspective view of the overall cross-sectional structure of the observation and sampling structure provided by the embodiments of the present application.

[0029] In the figure: 1, drying machine box; 2, sliding connection assembly; 3, screen drum; 4, bracket car; 5, first guide rail group; 6, second guide rail group; 201, box-shaped support; 202, connecting rod; 203, connecting ring body; 204, supporting wheel; 205, rotating shaft; 206, moving wheel; 207, limiting block; 208, pin hole block; 209, pin; 301, transmission mechanism connecting part; 302, guide plate; 303, discharging cylinder; 304, discharging guide plate; 305, sealing observation screw cap; 306, internal thread fixing sleeve ring; 307, transparent viewing window; 308, knob; 401, frame body; 402, universal wheel; 501, first limiting block; 502, connecting part; 503, spring pin shaft; 601, second limiting block; 602, connecting block. DETAILED DESCRIPTION

[0030] In order to make the purposes, technical schemes and advantages of the embodiments of the present application clearer, the technical schemes of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0031] Please refer to Figures 1 to 8 The present application provides a technical scheme: the movable roller of the pellet dryer, comprising

[0032] The dryer box 1 is internally divided into a drying cavity and an equipment installation cavity, the heating and drying module is arranged in the drying cavity, and the driving device is arranged in the equipment installation cavity.

[0033] The sliding connection assembly 2 comprises two oppositely arranged box-shaped supports 201, coaxially arranged mounting holes are formed in opposite side surfaces of the two box-shaped supports 201, a connecting ring body 203 is rotatably connected in each mounting hole, the two box-shaped supports 201 are fixedly connected through the connecting rod 202 between the opposite side surfaces, the bottom of each box-shaped support 201 is provided with an opening, and the mobile structure is arranged at the bottom between the two box-shaped supports 201.

[0034] The screen drum 3 is located in the drying cavity of the dryer box 1 and is provided with a feeding port and a discharging port at two ends, respectively, the two ends of the screen drum 3 are fixedly connected in the corresponding connecting ring body 203 on one side, the discharging mechanism is arranged at one end of the discharging port of the screen drum 3, and the observation and sampling structure is arranged on the side outer wall of the screen drum 3.

[0035] The bracket car 4 comprises a bracket body 401, and four universal wheels 402 distributed in a rectangular shape are fixedly installed at the bottom of the bracket body 401.

[0036] The first guide rail group 5 and the second guide rail group 6 are arranged at the bottom of the drying cavity of the dryer box 1 and the top of the bracket body 401 on both sides, respectively, the first guide rail group 5 and the second guide rail group 6 each comprise two parallel guide rails, and each guide rail is connected with the mobile structure arranged at the bottom of the two box-shaped supports 201.

[0037] It should be noted that the heating and drying module includes an electric heating element, a fan and corresponding air ducts. The electric heating element can be made of nickel-chromium alloy heating wire, which has high heating efficiency and stability. The fan is a axial flow fan installed on one side of the drying cavity, which blows hot air evenly to the screen drum 3 through the air duct. The design of the air duct can be optimized according to the shape and size of the drying cavity to ensure that the hot air flow can cover all parts of the screen drum 3. The driving device is a combination of a motor and a reducer. The motor provides power, and the reducer adjusts the speed and torque to meet the rotation requirements of the screen drum 3. The screen drum 3 is also made of stainless steel, and the screen holes are equal in size. The bracket car 4 adopts a metal frame structure made by welding process to ensure its strength and rigidity. The universal wheels 402 are equipped with brake function to fix the position of the bracket car 4 during movement. The guide rails of the first guide rail group 5 and the second guide rail group 6 are made of high-strength wear-resistant steel.

[0038] Please refer to Figure 5 The bottom end of the inner wall of each box-shaped support 201 on one side is rotatably connected with two supporting wheels 204 on both sides below the corresponding connecting ring body 203. Each supporting wheel 204 is rotatably connected with the outer wall of the corresponding connecting ring body 203.

[0039] The main body of the supporting wheel 204 is made of wear-resistant rubber material, and the surface has a certain roughness to increase the friction with the outer wall of the connecting ring body 203 and prevent slipping. A metal skeleton is embedded in the rubber to improve the overall strength of the supporting wheel 204. The supporting wheel 204 is installed at the bottom end of the inner wall of the box-shaped support 201 on one side through a bearing. During installation, ensure that the supporting wheel 204 is in good contact with the outer wall of the connecting ring body 203, and the heights of the supporting wheels 204 are consistent to ensure that the connecting ring body 203 is evenly stressed. The setting of the supporting wheel 204 reduces the friction when the connecting ring body 203 rotates, reduces energy loss, and prolongs the service life of the connecting ring body 203 and the box-shaped support 201. Stable rotation enables the pellets in the screen drum 3 to be uniformly heated, improving the quality and uniformity of pellet drying and reducing the phenomenon of uneven drying caused by unstable rotation.

[0040] Further, the moving structure includes a plurality of rotating shafts 205 distributed in parallel at the bottom end between the two box-shaped supports 201. Each rotating shaft 205 has a connecting shaft at both ends and is rotatably connected to the two box-shaped supports 201 through the connecting shaft. Each connecting shaft extends into the corresponding box-shaped support 201 and is fixedly connected with a moving wheel 206. A part of each moving wheel 206 extends to the outside of the box-shaped support 201 through the opening provided at the bottom of the corresponding box-shaped support 201 and is connected with the guide rail in the first guide rail group 5 or the second guide rail group 6.

[0041] The rotating shaft 205 and the connecting shaft are made of high-strength alloy steel. The moving wheel 206 is made of metal material, and a side of the outer wall of the circumference is provided with a protruding edge for clamping the guide rails of the first guide rail set 5 and the second guide rail set 6. The height and width of the protruding edge are designed according to the size of the guide rails to ensure the tightness and stability of the clamping, similar to the structure of train wheels and rails. An opening is arranged at the bottom of the box-shaped support 201 to ensure that a part of the moving wheel 206 can extend outside the box-shaped support 201 to be connected with the guide rails, and to prevent sundries from entering the inside of the box-shaped support 201 to affect the rotation of the moving wheel 206. The design of the moving structure greatly facilitates the overall movement of the screen cylinder 3, making it easier to clean the screen cylinder 3 and improving the cleaning efficiency of the equipment. Thorough cleaning can effectively avoid drug residue, ensure the quality of pellet drying, reduce equipment failure and damage caused by incomplete cleaning, reduce the maintenance cost of the equipment, and prolong the service life of the equipment.

[0042] Further, the limit block 207 is fixedly installed on one side surface of each box-shaped support 201, and the pin hole block 208 is fixedly installed at the corresponding position of the two limit blocks 207 on the inner wall of the bottom of the drying cavity. The insertion hole and the pin hole are respectively arranged on the top surface of each limit block 207 and the corresponding pin hole block 208, and the pin rod 209 is inserted into the insertion hole and the pin hole.

[0043] The limit block 207 and the pin hole block 208 are made of metal material, such as carbon steel or stainless steel. The limit block 207 is fixed on one side surface of the box-shaped support 201 by welding or bolt connection, and the pin hole block 208 is fixed at the corresponding position of the limit block 207 on the inner wall of the bottom of the drying cavity. The insertion hole and the pin hole are machined with high precision, and the diameter tolerance of the two is controlled within a small range to ensure that the pin rod 209 can be tightly matched after being inserted to prevent loosening. The pin rod 209 is a metal rod, and its surface is treated to prevent rust, such as galvanizing or chrome plating. During installation, the pin rod 209 is inserted into the insertion hole of the limit block 207, and then the bottom end is inserted into the pin hole of the pin hole block 208 to fix the box-shaped support 201. When the screen cylinder 3 needs to be moved, the pin rod 209 can be pulled out. The limit structure effectively enhances the stability of the screen cylinder 3 in the drying machine box 1, avoids uneven drying and aggravation of equipment wear caused by shaking of the screen cylinder 3, improves the quality of pellet drying and the reliability of the equipment. At the same time, the simple plug-in and plug-out operation makes it convenient and fast to fix and move the box-shaped support 201, improving the operation convenience of the equipment.

[0044] Please refer to Figures 6 to 8The outer wall of one end of the discharge port of the screen cylinder 3 is fixedly sleeved with a transmission mechanism connecting part 301. The transmission mechanism connecting part 301 is located inside the box-shaped support 201 on the corresponding side and is connected with the driving device in the equipment mounting cavity through a transmission structure. A plurality of guide plates 302 in the shape of a ring and uniformly distributed in a spiral shape are integrally arranged on the inner wall of the screen cylinder 3 and extend from the feeding port to the discharge port in a spiral shape.

[0045] The transmission mechanism connecting part 301 is provided as a gear or a chain wheel according to actual needs. If it is provided as a gear, an involute cylindrical gear can be selected. The module and the number of teeth are calculated and selected according to the output speed and torque of the driving device and the rotation requirement of the screen cylinder 3. When the gear transmission structure is connected with the driving part of the driving device, the meshing precision and transmission efficiency between the gears are ensured. If it is provided as a chain wheel, the pitch and the number of teeth of the chain wheel are also selected according to the transmission requirement. The chain wheel is connected with the driving device through a chain and chain wheel transmission structure. The length and the model of the chain are matched with the chain wheel. The guide plate 302 is integrally formed with the screen cylinder 3 and is made of stainless steel to ensure its strength and corrosion resistance. The guide plate 302 extends from the feeding port to the discharge port in a spiral shape. The spiral angle and the height are designed according to the characteristics of the pellets and the size of the screen cylinder 3 to ensure that the pellets can move smoothly to the discharge port along the guide of the guide plate 302 during the rotation of the screen cylinder 3, improving the drying effect of the pellets in the screen cylinder 3. The rotation of the screen cylinder 3 enables the pellets to fully contact the hot air flow, achieving uniform drying, reducing the drying time and improving the production efficiency. The design of the guide plate 302 ensures the smoothness of the pellet discharge and avoids the accumulation of the pellets in the screen cylinder 3, further improving the working efficiency of the equipment.

[0046] Further, the discharge mechanism includes a discharge cylinder 303 and a discharge guide plate 304. The discharge cylinder 303 is a hollow cylindrical structure that is recessed towards the inside of the screen cylinder 3. The discharge guide plate 304 is integrally arranged on the inner wall of one end of the screen cylinder 3. The discharge guide plate 304 is in the shape of a fan and forms a half-closed structure with the inner wall of one end of the screen cylinder 3, the peripheral wall and a part of the side wall of the discharge cylinder 303. A communication port is further arranged between the half-closed structure and the inside of the discharge cylinder 303.

[0047] The discharge cylinder 303 and the discharge guide plate 304 are made of stainless steel material, which meets the sanitary standard and avoids pollution to the pellets. The discharge cylinder 303 is a hollow cylindrical structure that is recessed towards the inside of the screen cylinder 3. The connection part between the discharge cylinder 303 and the screen cylinder 3 is welded or sealed to ensure good sealing and prevent pellet leakage. The discharge guide plate 304 is integrally arranged on the inner wall of one end of the screen cylinder 3 and has a fan-shaped structure. The opening is located between the two guide plates 302. This design allows the material to smoothly enter the semi-closed structure with an opening formed by the discharge guide plate 304, the inner wall of one end of the screen cylinder 3, the circumferential side wall, and part of the side wall of the discharge cylinder 303 when the material moves to the end of the discharge port along with the screen cylinder 3. A communication port is provided at the connection between the fan-shaped structure and the side wall of the discharge cylinder 303. The size and position of the communication port are designed according to the flow rate and discharge speed of the pellets to ensure that the material can smoothly enter the discharge cylinder 303 through the communication port to achieve automatic discharge. The realization of automatic discharge reduces the workload of manual discharge, reduces labor costs, and avoids pollution to the pellets during the manual discharge process, improving the quality of the product. The automatic discharge process also improves production efficiency, making the entire drying production process more continuous and stable.

[0048] Further, the observation and sampling structure includes a sealed observation screw cap 305, which is threadedly connected in an inner wire fixing sleeve ring 306 fixedly connected in a mounting slot opening on the outer wall of one side of the screen cylinder 3. A transparent visible window 307 made of transparent material is embedded in the middle of the sealed observation screw cap 305, and a knob 308 is provided at the center of the transparent visible window 307.

[0049] The sealed observation screw cap 305 and the inner wire fixing sleeve ring 306 are made of metal material, such as aluminum alloy or stainless steel, to ensure their strength and sealing performance. The inner wire fixing sleeve ring 306 is fixedly connected in the mounting slot opening on the outer wall of one side of the screen cylinder 3 by welding or threaded connection to ensure firm connection. The sealed observation screw cap 305 is threadedly connected in the inner wire fixing sleeve ring 306, and a sealing washer is provided at the threaded connection between the screw cap and the sleeve ring to ensure good sealing performance and prevent leakage of hot air and dust in the drying cavity. The transparent visible window 307 is made of high-strength transparent glass or organic glass, which has good light transmission and wear resistance, and can clearly observe the inside of the screen cylinder 3. The knob 308 is installed in the middle of the sealed observation screw cap 305, which facilitates the rotation of the sealed observation screw cap 305 by the operator to realize the opening and closing of the observation and sampling port. Through the observation and sampling structure, the operator can monitor the drying process of the material in real time, timely find problems and make adjustments, avoid product quality problems caused by over-drying or insufficient drying, and improve the quality stability of pellet drying. At the same time, the convenient sampling and detection function helps to optimize the drying process, improve production efficiency and product quality, and reduce production cost.

[0050] Referring to Figure 3 and Figure 4 The first limiting block 501 is fixedly installed on the end of the two rails of the first rail group 5 away from the trolley 4, and the second limiting block 601 is fixedly installed on the end of the two rails of the second rail group 6 away from the drying machine box 1.

[0051] The first limiting block 501 and the second limiting block 601 are made of rubber material. The first limiting block 501 is fixed on the end of the two rails of the first rail group 5 away from the trolley 4 by welding bolt connection, and the second limiting block 601 is fixed on the end of the two rails of the second rail group 6 away from the drying machine box 1. It can limit the corresponding rotating shaft 205 on the side close to it, avoid the sliding connection assembly 2 from excessive displacement to hit the drying machine box 1 or fall out of the trolley 4, and improve the safety during use.

[0052] Further, the two rails on the same side of the first rail group 5 and the second rail group 6 are provided with a connecting structure on the opposite end, the connecting structure includes a connecting part 502 fixedly installed on the end of the rail of the first rail group 5 and a connecting block 602 fixedly connected on the end of the rail of the second rail group 6, the connecting part 502 is provided with a spring pin shaft 503, the connecting block 602 is provided with a pin hole corresponding to the spring pin shaft 503 on one side surface, and one end of the spring pin shaft 503 is inserted into the pin hole.

[0053] The connecting part 502 and the connecting block 602 are made of metal material, such as carbon steel or stainless steel. The connecting part 502 and the connecting block 602 are designed as a plug-in structure similar to a concave-convex structure that can cooperate with each other, the convex part on the connecting part 502 and the groove part on the connecting block 602 are accurately matched in size to ensure the tightness and stability of the plug-in. An installation hole is formed on one side surface of the connecting part 502, and a spring pin shaft 503 is slidably connected in the installation hole. The spring pin shaft 503 is composed of a pin shaft and a spring. During installation, first, the connecting block 602 is plugged into the connecting part 502, and then the spring pin shaft 503 is automatically inserted into the pin hole formed on one side surface of the connecting block 602 under the action of the spring, limiting the connecting block 602, thereby completing the connection of the drying machine box 1 and the trolley 4 and the butt joint of the first rail group 5 and the second rail group 6, so that the four rails form two complete rails. When disassembling, only press the spring pin shaft 503 to make it exit the pin hole, and the connecting part 502 and the connecting block 602 can be separated. The connecting structure is simple and convenient to operate, and can quickly realize the connection and separation of the drying machine box 1 and the trolley 4, and the butt joint and disassembly of the rails. It ensures the smoothness and stability of the screen cylinder 3 moving between the drying machine box 1 and the trolley 4, improves the use convenience and overall performance of the equipment, reduces the installation and disassembly time of the equipment, and improves the production efficiency.

[0054] Working principle: first, the bracket car 4 is pushed to the drying machine box 1, the concave-convex plug-in structure of the connecting part 502 and the connecting block 602 and the spring pin shaft 503 are used to complete the connection of the drying machine box 1 and the bracket car 4, and the butt joint of the first guide rail group 5 and the second guide rail group 6 is realized, and the complete guide rail is formed. Then, the pin rod 209 is pulled out, the limiting of the box-shaped support 201 is released, the screen cylinder 3 is slid from the drying machine box 1 to the bracket car 4 along the guide rail by means of the rotating shaft 205 of the moving structure, the connecting shaft and the moving wheel 206 with a protruding edge and being clamped with the guide rail, and the screen cylinder 3 is conveniently and thoroughly cleaned. After cleaning, the screen cylinder 3 is returned to the drying machine box 1 in the reverse operation, the pin rod 209 is inserted to fix the box-shaped support 201. The motor of the driving device provides power, the rotating speed and the torque are adjusted through the speed reducer, the screen cylinder 3 is driven to rotate through the transmission mechanism connecting part 301 (gear or chain wheel), and the spiral guide plate 302 on the inner wall of the circumferential circle of the screen cylinder 3 guides the pellets to move to the discharge port. The heating drying module generates heat, and the fan blows the hot air flow to the screen cylinder 3 through the air duct to dry the pellets. When the pellets are dried, the screen cylinder 3 is rotated to one end of the discharge port, enters the semi-closed structure formed by the discharge cylinder 303 and the discharge guide plate 304, and then enters the discharge cylinder 303 through the communication port to realize automatic discharge. During the drying process, the operator can observe the material drying condition through the transparent observation window 307 of the sampling structure, and if sampling is needed, the sealing observation rotary cap 305 can be operated. In addition, the first limiting block 501 and the second limiting block 601 can prevent the sliding connection assembly 2 from excessive displacement, and ensure the safety of equipment operation.

[0055] The preferred embodiments of the present application are described above, but the present application is not limited to the above. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A movable drum for a pellet dryer, characterized in that, include The drying chamber is divided into a drying chamber and an equipment mounting chamber. The drying chamber is equipped with a heating and drying module, and the equipment mounting chamber is equipped with a driving device. A sliding connection assembly includes two opposing box-shaped brackets. Each of the two box-shaped brackets has a coaxial mounting hole on one of its opposing surfaces. A connecting ring is rotatably connected to each mounting hole. The opposing surfaces of the two box-shaped brackets are fixedly connected by a connecting rod. Each box-shaped bracket has an opening at its bottom. A movable structure is provided at the bottom end between the two box-shaped brackets. A screen cylinder is located inside the drying chamber of a dryer and has an inlet and an outlet at both ends. The two ends of the screen cylinder are fixedly connected to a connecting ring on the corresponding side. A discharge mechanism is provided at one end of the outlet of the screen cylinder, and an observation and sampling structure is provided on one side of the outer wall of the screen cylinder. A trolley; the trolley includes a frame, and four rectangular casters are fixedly installed at the bottom of the frame; The first guide rail group and the second guide rail group are respectively arranged on both sides of the bottom of the drying chamber of the drying machine and on both sides of the top of the frame. The first guide rail group and the second guide rail group each include two parallel guide rails, and each guide rail is connected to a movable structure provided at the bottom of two box-shaped supports.

2. The movable drum of the pellet dryer as described in claim 1, characterized in that: Each of the box-shaped brackets has two rollers rotatably connected to the bottom of one inner wall of the corresponding connecting ring body, and each roller is rolledly connected to the outer wall of the corresponding connecting ring body.

3. The movable drum of the pellet dryer as described in claim 1, characterized in that: The movable structure includes several rotating shafts that are parallel to each other at the bottom of the box-shaped supports on both sides. Each rotating shaft has a connecting shaft at both ends and is rotatably connected to the box-shaped supports on both sides through the connecting shaft. Each connecting shaft extends into the interior of the corresponding box-shaped support and is fixedly connected to a moving wheel. A portion of each moving wheel extends from the opening at the bottom of the corresponding box-shaped support to the outside of the box-shaped support and is connected to the guide rail in the first guide rail group or the second guide rail group.

4. The movable drum of the pellet dryer as described in claim 1, characterized in that: Each of the box-shaped brackets has a limiting block fixedly installed on one side surface. The bottom inner wall of the drying chamber has pin hole blocks fixedly installed on both sides corresponding to the two limiting blocks. Each limiting block and the corresponding pin hole block have an insertion hole and a pin hole respectively on their top surfaces. A pin is inserted into the insertion hole, and the bottom end of the pin is inserted into the corresponding pin hole.

5. The movable drum of the pellet dryer as described in claim 1, characterized in that: A transmission mechanism connection part is fixedly sleeved on the outer wall of the discharge port end of the screen cylinder. The transmission mechanism connection part is located inside the box-shaped bracket on the corresponding side and is connected to the drive device in the equipment installation cavity through the transmission structure. Several guide plates are integrally arranged on the inner wall of the screen cylinder in a ring shape and spirally extending from the feed port to the discharge port.

6. The movable drum of the pellet dryer as described in claim 1, characterized in that: The discharge mechanism includes a discharge cylinder and a discharge guide plate. The discharge cylinder is a hollow cylindrical structure that is recessed into the screen cylinder. The discharge guide plate is integrally set on the inner wall of one end of the screen cylinder. The discharge guide plate is a fan-shaped structure and forms a semi-closed structure with an opening with the inner wall of one end of the screen cylinder, the surrounding side wall, and a part of the side wall of the discharge cylinder. A communication port is also provided between the semi-closed structure and the interior of the discharge cylinder.

7. The movable drum of the pellet dryer as described in claim 1, characterized in that: The observation and sampling structure includes a sealed observation cap, which is threaded into an inner thread fixing ring. The inner thread fixing ring is fixedly connected to an installation slot on the outer wall of one side of the screen cylinder. A transparent viewing window made of transparent material is embedded in the middle of the sealed observation cap, and a knob is set in the center of the transparent viewing window.

8. The movable drum of the pellet dryer as described in claim 1, characterized in that: In the first guide rail group, a first limiting block is fixedly installed on the end of each of the two guide rails away from the carriage, and a second limiting block is fixedly installed on the end of each of the two guide rails away from the dryer box.

9. The movable drum of the pellet dryer as described in claim 1, characterized in that: The first guide rail group and the second guide rail group have a connection structure at opposite ends of the two guide rails on the same side. The connection structure includes a connecting part fixedly installed on one end of the guide rail of the first guide rail group and a connecting block fixedly connected to one end of the guide rail of the second guide rail group. A spring pin is provided on the connecting part, and a pin hole corresponding to the spring pin is opened on one side surface of the connecting block. One end of the spring pin is inserted into the pin hole.

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