Rotary drying furnace in inorganic pigment preparation process

Abstract

The invention relates to the technical field of drying furnaces, and discloses a rotary drying furnace in an inorganic pigment preparation process, the rotary drying furnace comprises a placing part, the placing part comprises a workbench, the upper surface of the workbench is rotatably connected with a cylinder through a riding wheel, and one end of the cylinder is rotatably connected with a feeding cylinder connected with the upper surface of the workbench. The rotary drying furnace in the inorganic pigment preparation process can effectively solve the problems that in the prior art, a drying furnace is in a continuous rotating state, the time spent by materials entering a furnace body at the first time until the materials flow out of the furnace body after processing is completed is basically unchanged, the flowing time of the inorganic pigment in a barrel is also constant, and the drying effect is poor. The problems that when different batches of inorganic pigments with different dry and wet degrees are produced, the drying time cannot be correspondingly adjusted according to actual conditions, and the undesirable phenomena that the colors of the pigments are not uniform, too much water is left, and particles are agglomerated are easily caused are solved.

Description

Technical Field

[0001] The invention relates to the technical field of drying furnaces, and in particular to a rotary drying furnace in a process of preparing inorganic pigments. Background Art

[0002] Drying furnace is a kind of equipment used to remove moisture or other volatile components from materials. It provides an environment conducive to the evaporation of moisture through heating, ventilation and other means, so that the materials can reach the desired degree of dryness. Drying furnace is widely used in many industries such as chemical, food, pharmaceutical, building materials, etc., and is one of the important equipment in the industrial production process.

[0003] In the prior art, the drying furnace is in a continuous rotating state. The time taken for the material to flow out of the furnace from the time it first enters the furnace body to the time it is processed is basically constant. The time the inorganic pigment flows in the cylinder is also constant. When producing inorganic pigments of different batches with different degrees of dryness and wetness, the drying time cannot be adjusted accordingly according to the actual situation, which can easily cause undesirable phenomena such as uneven color of the pigment, excessive residual moisture, and agglomeration of particles. Summary of the invention

[0004] Technical issues solved In view of the above-mentioned shortcomings of the prior art, the present invention provides a rotary drying furnace for the preparation process of inorganic pigments, which can effectively solve the problems in the prior art that the drying furnace is in a continuous rotating state, the time spent from the initial entry of the material into the furnace body to the flow out of the furnace body after processing is completed, and the length of time the inorganic pigment flows in the cylinder is also constant. When producing inorganic pigments of different batches with different dryness and wetness, the drying time cannot be adjusted accordingly according to the actual situation, which easily causes undesirable phenomena such as uneven color of the pigment, excessive residual moisture and agglomeration of particles.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides a rotary drying furnace in a process of preparing an inorganic pigment, comprising: A placement part, the placement part includes a workbench, the upper surface of the workbench is rotatably connected to a cylinder through a supporting wheel, one end of the cylinder is rotatably connected to a feed cylinder connected to the upper surface of the workbench, the interior of the feed cylinder is connected to the interior of the cylinder, one end of the cylinder away from the feed cylinder is rotatably connected to a discharge baffle connected to the upper surface of the workbench, and the circumferential inner wall of the cylinder is provided with a turning piece that can be used to turn over the external inorganic pigment; A drying section, the drying section comprising a heating cylinder, the outer surface of the heating cylinder being fixedly connected to an end of a discharge baffle away from the cylinder body, and a vent is provided inside the discharge baffle; The material turning member comprises a lifting plate, one side of which is fixedly connected to the inner wall of the cylinder, and the lifting plate is connected to a rotating plate through a rotating shaft arranged inside the lifting plate for damping rotation, a side of the lifting plate away from the inner wall of the cylinder is fixedly connected to a limit plate that fits the outer surface of the rotating plate, and a side of the rotating plate away from the discharge baffle is fixedly connected to a linkage column; Wherein, a cleaning mechanism for cleaning the copying board is arranged inside the cylinder.

[0006] Furthermore, a rotating shaft rotatably connected to the outer surface of the discharge baffle is provided inside the cylinder, the end of the rotating shaft away from the feed cylinder passes through the discharge baffle and is fixedly connected to a gear driven by an external driving base, the end of the rotating shaft away from the gear passes through the feed cylinder and is fixedly connected to a connecting block, and the circumferential outer surface of the rotating shaft is provided with an adjustment block that fits with the linkage column.

[0007] Furthermore, the upper surface of the workbench is fixedly connected to a limit rod, and the cleaning mechanism includes a fixed shaft, and the fixed shaft is connected to a sliding rod through the rotation of an arc-shaped clamping strip arranged on its circumferential outer surface, one end of the fixed shaft passes through a discharge baffle and is fixedly connected to the outer surface of the limit rod, and the other end of the fixed shaft passes through a feed barrel and is provided with a driving member that can be used to move the sliding rod, and the end of the sliding rod away from the driving member is provided with a spring connected to the outer surface of the limit rod, and the spring is sleeved on the circumferential outer surface of the sliding rod, and the circumferential outer surface of the sliding rod is fixedly connected to a scraper that fits the outer surface of the copying plate.

[0008] Furthermore, a connecting rod is fixedly connected to one side of the cylinder away from the discharge baffle, and a linkage disk that fits the circumferential outer surface of the feed cylinder is fixedly connected to one side of the connecting rod away from the discharge baffle.

[0009] Further, the driving member includes a rotating seat, which is slidably connected to the circumferential outer surface of the feed barrel, and the end of the fixed shaft away from the limiting rod is fixedly connected to the circumferential outer surface of the feed barrel. The rotating seat is rotatably connected to the outer surface of the sliding rod via a buckle arranged on its inner wall, and the rotating seat is rotatably connected to the rotating rod on the side close to the linkage disk, and the rotating rod is rotatably connected to the driving rod on the end away from the rotating seat, and the driving rod is rotatably connected to the positioning shaft on the side close to the feed barrel.

[0010] Furthermore, one end of the positioning shaft away from the driving rod is fixedly connected to the circumferential outer surface of the feed barrel, the side of the driving rod away from the positioning shaft is fixedly connected to a bevel gear, and one end of the linkage disk close to the barrel is fixedly connected to a bevel gear block, and the bevel gear blocks are provided in plurality and distributed in a circular array with the barrel as the axis.

[0011] Furthermore, a gear ring is fixedly connected to the circumferential outer surface of the cylinder, a drive motor is fixedly connected to the upper surface of the workbench, and an output end of the drive motor is transmission-connected to a drive gear meshing with the gear ring.

[0012] Furthermore, one end of the discharge baffle away from the cylinder is fixedly connected to a discharge pipe, one end of the feed cylinder away from the cylinder is fixedly connected to an exhaust pipe, and the circumferential outer surface of the feed cylinder is fixedly connected to a loading port.

[0013] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: The present invention is provided with a lifting plate, a rotating plate and an adjusting block. The lifting plate in the material turning part is fixedly connected to the inner wall of the cylinder and rotates with the cylinder. The time required for production can be adjusted according to the dryness of different production batches of inorganic pigments. When the material is relatively wet, the initial state of the gear is maintained without adjustment, that is, the adjusting block on the outer surface of the circumference of the rotating shaft does not contact the linkage column, and the rotating plate maintains the initial state and overlaps with the side of the lifting plate. When the material turning part rises to the upper part of the cylinder, the rotating plate and the upper surface of the workbench are kept in a horizontal state, and the lifted material falls evenly from all directions of the rotating plate and is evenly sprinkled inside the cylinder. The drying cycle is long, and the material can be fully exposed to hot air multiple times. When the material is relatively dry, the drive base is used to rotate the gear to a certain extent, driving the rotating shaft to rotate the adjustment block toward the linkage column. When the cylinder drives the rotating plate to move through the adjustment block, the adjustment block rotates the rotating plate around the rotating shaft through the linkage column. The damping of a certain angle, when the copying plate and the rotating plate rise to the upper part of the cylinder, the rotating plate and the workbench are in an inclined state, and the side of the rotating plate close to the discharge baffle is lower, more inorganic pigments will follow the inclination of the rotating plate and fall to the lower material pipe, the overall drying time is shortened, and the time for the material to pass through the cylinder is short. For drier materials, the drying time can be appropriately shortened to prevent problems such as material deterioration, performance degradation, or dust generation due to excessive drying. For wetter materials, extending the drying time can make them fully dry and reach the required moisture content standard, avoiding the impact of incomplete drying on subsequent processing or use. The drying time can be flexibly adjusted, which reduces unnecessary energy consumption, reduces production costs, and improves the energy efficiency of the drying process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of a cylinder according to an embodiment of the present invention; Figure 3 It is a side view of the cylinder of an embodiment of the present invention; Figure 4 It is a schematic diagram of the separation structure of the cylinder, the feed cylinder and the discharge baffle in an embodiment of the present invention; Figure 5 It is a schematic diagram of the cross-sectional structure of the cylinder at another angle according to an embodiment of the present invention; Figure 6 This is a schematic structural diagram of a material turning member according to an embodiment of the present invention; Figure 7 It is a schematic diagram of the separation structure of the fixed shaft, the sliding rod and the rotating shaft according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of the copying plate, the rotating plate and the adjusting block according to an embodiment of the present invention; Fig. 9 This is a schematic diagram of the structure of the feed barrel and the cleaning mechanism of an embodiment of the present invention; Fig.10 It is a schematic diagram of the structure of the driving member and the linkage disk according to an embodiment of the present invention; Fig.11 It is a schematic structural diagram of a rotating seat, a fixed shaft and a sliding rod according to an embodiment of the present invention.

[0016] The numbers in the figure represent: 1, placement part; 11, workbench; 111, limit rod; 112, drive motor; 113, drive gear; 12, support wheel; 13, cylinder; 131, connecting rod; 132, gear ring; 14, feed cylinder; 141, exhaust pipe; 142, feed port; 15, discharge baffle; 151, discharge pipe; 16, turning piece; 161, copying plate; 1611, rotating shaft; 162, rotating plate; 1622, linkage column; 163. Limiting plate; 164. Rotating shaft; 165. Adjusting block; 17. Cleaning mechanism; 171. Fixed shaft; 1711. Arc-shaped clamping strip; 172. Sliding rod; 173. Spring; 174. Scraper; 18. Driving member; 181. Rotating seat; 182. Rotating rod; 183. Driving rod; 184. Positioning shaft; 185. Bevel gear; 186. Bevel gear block; 19. Linkage disk; 2. Drying section; 21. Heating cylinder; 22. Ventilation port. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] The present invention will be further described below in conjunction with the embodiments.

[0019] Example:

[0020] See also Figure 1-Figure 11 The present invention provides a technical solution: a rotary drying furnace in the process of preparing inorganic pigments, comprising: The placing part 1 comprises a workbench 11, the upper surface of the workbench 11 is rotatably connected to a cylinder 13 via a supporting wheel 12, one end of the cylinder 13 is rotatably connected to a feed cylinder 14 connected to the upper surface of the workbench 11, the interior of the feed cylinder 14 is connected to the interior of the cylinder 13, and the end of the cylinder 13 away from the feed cylinder 14 is rotatably connected to a discharge baffle 15 connected to the upper surface of the workbench 11, and the circumferential inner wall of the cylinder 13 is provided with a turning piece 16 for turning over the external inorganic pigment, and the feed cylinder 14 is composed of a hollow plate and a hollow cylinder; The drying section 2 includes a heating cylinder 21, the outer surface of the heating cylinder 21 is fixedly connected to the end of the discharge baffle 15 away from the cylinder body 13, and a vent 22 is provided inside the discharge baffle 15; The material turning member 16 includes a lifting plate 161, one side of which is fixedly connected to the inner wall of the cylinder 13, and the lifting plate 161 is connected to a rotating plate 162 through a rotating shaft 1611 arranged inside the lifting plate 161 for damping rotation, a limiting plate 163 that fits the outer surface of the rotating plate 162 is fixedly connected to the side of the lifting plate 161 away from the inner wall of the cylinder 13, and a linkage column 1622 is fixedly connected to the side of the rotating plate 162 away from the discharge baffle 15; A cleaning mechanism 17 for cleaning the copying plate 161 is arranged inside the cylinder 13 .

[0021] A rotating shaft 164 is arranged inside the barrel 13 and is rotatably connected to the outer surface of the feed barrel 14. The end of the rotating shaft 164 away from the feed barrel 14 passes through the discharge baffle 15 and is fixedly connected to a gear driven by an external driving base. The end of the rotating shaft 164 away from the gear passes through the feed barrel 14 and is fixedly connected to a connecting block. The circumferential outer surface of the rotating shaft 164 is arranged with an adjusting block 165 that fits with the linkage column 1622.

[0022] The upper surface of the workbench 11 is fixedly connected to the limit rod 111, and the cleaning mechanism 17 includes a fixed shaft 171. The fixed shaft 171 is connected to the sliding rod 172 by rotation of an arc-shaped clamping strip 1711 arranged on the outer surface of its circumference. One end of the fixed shaft 171 passes through the discharge baffle 15 and is fixedly connected to the outer surface of the limit rod 111. The other end of the fixed shaft 171 passes through the feed barrel 14 and is provided with a driving member 18 that can be used to move the sliding rod 172. The end of the sliding rod 172 away from the driving member 18 is provided with a spring 173 connected to the outer surface of the limit rod 111. The circumferential outer surface of the sliding rod 172 is fixedly connected with a scraper 174 that fits the outer surface of the copying plate 161. The two ends of the sliding rod 172 extend to the outer surface of the discharge baffle 15 and the feed barrel 14 away from the cylinder 13, respectively, to avoid the cleaning mechanism 17 from having a gap inside the cylinder 13 and being affected by dust.

[0023] A connecting rod 131 is fixedly connected to one side of the cylinder 13 away from the discharge baffle 15 , and a linkage disk 19 that fits the circumferential outer surface of the feed cylinder 14 is fixedly connected to one side of the connecting rod 131 away from the discharge baffle 15 .

[0024] The driving member 18 includes a rotating seat 181, which is slidably connected to the circumferential outer surface of the feed barrel 14, and the end of the fixed shaft 171 away from the limiting rod 111 is fixedly connected to the circumferential outer surface of the feed barrel 14. The rotating seat 181 is rotatably connected to the outer surface of the sliding rod 172 through a buckle arranged on its inner wall. The side of the rotating seat 181 close to the linkage disk 19 is rotatably connected to the rotating rod 182, and the end of the rotating rod 182 away from the rotating seat 181 is rotatably connected to the driving rod 183, and the side of the driving rod 183 close to the feed barrel 14 is rotatably connected to the positioning shaft 184.

[0025] One end of the positioning shaft 184 away from the driving rod 183 is fixedly connected to the outer circumferential surface of the feed barrel 14, and the side of the driving rod 183 away from the positioning shaft 184 is fixedly connected to a bevel gear 185, and one end of the linkage plate 19 close to the barrel 13 is fixedly connected to a bevel gear block 186, and a plurality of bevel gear blocks 186 are provided and distributed in a circumferential array with the barrel 13 as the axis. The number of bevel gear blocks 186 is the same as the number of the copying plate 161 in the radial circumferential direction inside the barrel 13, and they correspond one to one.

[0026] A gear ring 132 is fixedly connected to the circumferential outer surface of the cylinder 13 , a driving motor 112 is fixedly connected to the upper surface of the workbench 11 , and a driving gear 113 meshing with the gear ring 132 is drivingly connected to the output end of the driving motor 112 .

[0027] One end of the discharge baffle 15 away from the cylinder 13 is fixedly connected to a discharge pipe 151 , one end of the feed cylinder 14 away from the cylinder 13 is fixedly connected to an exhaust pipe 141 , and the circumferential outer surface of the feed cylinder 14 is fixedly connected to a feed port 142 .

[0028] The process of using the turning piece 16 to stir the inorganic pigment: In actual application, the inorganic pigment to be processed is put into the feeding port 142 in the placement part 1. The feeding barrel 14 adopts a slightly inclined design, with the side close to the exhaust pipe 141 being higher and the side close to the discharge pipe 151 being lower. The inorganic pigment enters the feeding barrel 14. Due to the internal inclination of the feeding barrel 14, the inorganic pigment flows into the lower inner wall of the cylinder 13 under the action of its own gravity. After the inorganic pigment is loaded, the driving motor 112 is started to drive the driving gear 113 to rotate, and the gear ring 132 meshing with the driving gear 113 moves synchronously. Under the action of the gear ring 132, the cylinder 13 rotates under the support and limit of the supporting wheel 12. The heating barrel 21 is also turned on and operated at this time, driving hot air to flow into the cylinder 13 from the vent 22, taking away the moisture contained in the inorganic pigment inside the cylinder 13, and then passing through the feeding barrel 14 and discharged from the exhaust pipe 141.

[0029] When the cylinder 13 rotates clockwise, the pick-up plate 161 fixedly connected to the inner wall of the cylinder 13 also rotates synchronously. When the pick-up plate 161 rotates through the bottom of the inner wall of the cylinder 13, the inorganic pigment accumulated at the bottom of the inner wall of the cylinder 13 is picked up. The inorganic pigment is on the left outer surface of the pick-up plate 161. The inorganic pigment moves upward clockwise with the pick-up plate 161 and is driven to the top of the inner wall of the cylinder 13. In this process, as the angle of the pick-up plate 161 changes, a certain amount of inorganic pigment naturally falls under the action of gravity. Until the pick-up plate 161 passes the highest point of the inner wall of the cylinder 13 and continues to rotate clockwise, the remaining inorganic pigment in the pick-up plate 161 accumulates on the upper surface of the rotating plate 162. When the rotation continues, due to the large inclination angle of the pick-up plate 161, the inorganic pigment inside is thrown downward, so that the inorganic pigment is dispersed, and the gap between them increases, which increases the contact area with the hot air and prolongs the contact time with the hot air, which helps the moisture in the inorganic pigment to be taken away by the hot air. When the copying plate 161 continues to rotate ninety degrees from the highest point, there is no inorganic pigment inside the copying plate 161 and the rotating plate 162 , and at this time, the copying plate 161 also reaches the position of the cleaning mechanism 17 .

[0030] Process of changing the drying time of inorganic pigments: Since the cylinder 13 is designed as a straight cylinder, and the internal materials are lifted and dropped by the rotation of the cylinder 13, the path of the inorganic pigments dropped from high altitude can be changed by changing the rotation angle of the rotating plate 162. In the topmost flipping member 16, when the side of the rotating plate 162 close to the discharge baffle 15 is lower, the inorganic pigments will fall toward the discharge baffle 15 after being lifted, which reduces the drying time of the internal materials of the cylinder 13; when the rotating plate 162 and the workbench 11 are in a horizontal state, the inorganic pigments will fall from all directions of the rotating plate 162 after being lifted, and the materials are more uniform inside the cylinder 13, which increases the drying time of the internal materials of the cylinder 13.

[0031] The adjustment block 165 adopts a semicircular design. In the initial state, when the cylinder 13 rotates, the adjustment block 165 does not contact the linkage column 1622. When the drying time needs to be adjusted, the external driving base is used to drive the gear on the outer surface of the discharge baffle 15 to drive the rotating shaft 164 to rotate, and the adjustment block 165 fixedly connected to the outer surface of the rotating shaft 164 rotates synchronously. At this time, when the cylinder 13 rotates, the circumferential outer surface of the adjustment block 165 will contact the linkage column 1622. When the turning piece 16 rotates synchronously with the cylinder 13, the linkage column 1622 on the side of the rotating plate 162 away from the discharge baffle 15 passes through the adjustment block 165, and rotates around the rotating shaft 1611 with damping under the pressure of the adjustment block 165 (the specific rotation angle of the rotating plate 162 is determined by the angle of rotation of the adjustment block 165. The greater the gear rotation stroke, the greater the rotation degree of the adjustment block 165 and the rotating shaft 164, the larger the rotation angle of the rotating plate 162, and the shorter the drying time of the material inside the cylinder 13).

[0032] After the rotating plate 162 is damped and rotated under the action of the adjusting block 165, it maintains this state and continues to rotate with the cylinder 13. When the rotating plate 162 is at the upper part of the cylinder 13, the center of gravity of the inorganic pigment is transferred from the outer surface of the copying plate 161 to the surface of the rotating plate 162. At this time, the rotating plate 162 is still in an inclined state, and the side close to the discharge baffle 15 is lower. More inorganic pigments will fall from the upper part of the rotating plate 162 from high altitude to the side close to the discharge baffle 15, which is closer to the side of the discharge pipe 151. As the cylinder 13 continues to rotate from the highest point to nearly 90 degrees, there is no inorganic pigment on the outer surface of the rotating plate 162 and the copying plate 161, and all of them fall to the bottom of the cylinder 13, but the rotating plate 162 is still in an inclined state, and the copying plate 161 is parallel to the upper surface of the workbench 11, and the half of the rotating plate 162 close to the discharge baffle 15 is at a greater distance from the inner wall of the cylinder 13, and the other half of the rotating plate 162 close to the feed cylinder 14 is at a smaller distance from the inner wall of the cylinder 13. When the turning member 16 rotates with the cylinder 13 to the top of the cleaning mechanism 17, the upper surface of the scraper 174 fits with the lower surface of the copying plate 161 and is located on the side of the scraper 174 close to the discharge baffle 15. At this time, the side of the scraper 174 does not contact the rotating plate 162, and the outer surface of the scraper 174 is covered with a layer of flexible material, and the overall design adopts a soft outer and hard inner design. As the cylinder 13 continues to rotate, the scraper 174 moves to the side of the rotating plate 162 away from the discharge baffle 15, and the scraper 174 rotates around the fixed axis 171 while moving forward, always fitting with the lower surface of the copying plate 161. When the scraper 174 moves to the position of the rotating axis 1611 of the rotating plate 162, as the scraper 174 moves, the side plate thereof will fit with the rotating plate 162, and change the rotating plate 162 from its inclined state to its initial state perpendicular to the copying plate 161, thereby completing the resetting action of the rotating plate 162.

[0033] The side of the copying plate 161 is fixed with a limit plate 163 to prevent the rotating plate 162 from rotating in another direction around the rotating shaft 1611. At the same time, the rotating plate 162 is damped and the maximum rotation angle is 45 degrees. The process of cleaning the copy board 161: When the inorganic pigment is in the initial stage of drying, the moisture content is relatively high. The shoveling plate 161 contacts the inorganic pigment through the bottom of the cylinder 13, causing the left side of the shoveling plate 161 at the bottom to adhere to the inorganic pigment and form lumps on the surface of the shoveling plate 161. When the rotation continues, the inorganic pigment at the bottom can no longer be brought upward, resulting in a poor drying effect.

[0034] A fixed shaft 171 is arranged inside the cylinder 13, and the two ends of the fixed shaft 171 respectively penetrate the feed cylinder 14 and the discharge baffle 15, and are fixedly connected to the workbench 11. When the cylinder 13 rotates, the connecting rod 131 fixedly connected to the cylinder 13 rotates together with the linkage disk 19, and at the same time, the bevel gear blocks 186 arranged on the side of the linkage disk 19 close to the cylinder 13 rotate synchronously, and the number of bevel gear blocks 186 is the same as the number of the copying plates 161 in the same axial range, and corresponds to each other. The bevel gear blocks 186 rotate synchronously with the cylinder 13 on the linkage disk 19, and the circumferential outer surface of the fixed shaft 171 is slidably connected with a sliding rod 172, and the two ends of the sliding rod 172 also extend to the outer surface of the feed cylinder 14 and the discharge baffle 15, respectively, to reduce unnecessary dead angles generated by the cleaning mechanism 17 inside the cylinder 13, and the end of the sliding rod 172 away from the discharge baffle 15 is slidably connected to the circumferential outer surface of the feed cylinder 14 through the rotating seat 181.

[0035] When the linkage disk 19 rotates synchronously, the bevel gear block 186 rotates with it, and the bevel gear 185 is connected to the driving rod 183 in rotation, and is kept in this position by the positioning shaft 184 fixedly connected to the feed barrel 14. The number of radial ranges of the scraper plate 161 is the same as the number of the scraper plates 174, and the scraper plates 174 correspond to the scraper plates 161 one by one. In the initial state, the scraper plates 174 are at the right side of the scraper plates 161. The scraper plates 161 are about to reach the upper surface of the scraper plates 174 as the cylinder 13 rotates. At the moment when the lower surface of the scraper plates 161 fits the upper surface of the scraper plates 174, the bevel gear block 186 rotates to the outer surface of the bevel gear 185 and meshes with it, driving the bevel gear 185 to rotate. The bevel gear 185 is fixedly connected to the outer surface of the driving rod 183. The driving rod 183 rotates around the positioning shaft 184. The driving rod 183 is rotationally connected to the rotating rod 182. The rotating rod 182 rotates accordingly, and the angle between the driving rod 183 and the rotating rod 182 increases. Under the limiting action of the fixed shaft 171, the rotating seat 181 is pushed away from the linkage disk 19. The rotating seat 181 is connected to the sliding rod 172 through a buckle. Under the action of the sliding rod 172, the sliding rod 172 also slides away from the linkage disk 19, squeezing the spring 173 between the sliding rod 172 and the limiting rod 111, reducing the distance between the sliding rod 172 and the limiting rod 111, and the spring 173 is in a compressed state.

[0036] The scraper 174 inside the cylinder 13 is fixedly connected to the circumferential outer surface of the sliding rod 172, and the scraper 174 also moves in the direction away from the linkage disk 19. At the same time, the upper surface of the scraper 174 is tightly fitted with the lower surface of the copying plate 161, when the scraper 174 gradually moves from the right side of the copying plate 161 to the left side of the copying plate 161. During this process, the cylinder 13 drives the scraper 174 and the bevel tooth block 186 to rotate continuously. When the sliding rod 172 moves, it will rotate around the outer surface of the fixed shaft 171 under the action of the arc-shaped card strip 1711, ensuring that the scraper 174 can always fit with the outer surface of the copying plate 161 during the movement of the cylinder 13. The edge of the scraper 174 can scrape off the inorganic pigments that remain on the outer surface of the copying plate 161 at this position and have not successfully fallen from right to left, ensuring the cleanliness of the copying plate 161, so that the copying plate 161 can effectively pick up and throw down the inorganic pigments every time it rotates, so that the inorganic pigments are fully exposed to the hot air, ensuring that each part of it can effectively absorb heat, reducing the wear and corrosion of the copying plate 161 caused by the inorganic pigments, and reducing the frequency of cleaning and maintenance.

[0037] As the cylinder 13 continues to rotate, the bevel gear block 186 disengages from the meshing with the bevel gear 185, and the spring 173 quickly pops open after losing its limiting effect, moving the sliding rod 172 toward the linkage disk 19, driving the rotating seat 181 to slide toward the side close to the linkage disk 19, and the distance between the rotating seat 181 and the bevel gear 185 becomes smaller, and the angle between the driving rod 183 and the rotating rod 182 becomes smaller, and the driving rod 183 rotates back around the positioning shaft 184, driving the bevel gear 185 to rotate and restore its initial state. The scraper 174 also restores its initial state under the action of the sliding rod 172 and is on the right side of the copying plate 161. The cleaning mechanism 17 waits for the next bevel gear block 186 to mesh with the bevel gear 185, driving the scraper 174 to clean the surface of the sliding rod 172, and the cleaning mechanism 17 will complete the cleaning action of the outer surface of the copying plate 161 at various parts as the cylinder 13 continues to rotate.

[0038] After drying, the inorganic pigment will move toward the heating cylinder 21 and finally be discharged from the discharge pipe 151 .

[0039] In summary, the process of cleaning the copy board 161 has the following advantages: Advantage 1. The direction in which the inorganic pigment falls from a high place can be achieved by changing the rotation angle of the rotating plate 162. When the rotating plate 162 is parallel to the upper surface of the workbench 11, the degree of falling of the inorganic pigment is relatively uniform, and it falls evenly inside the cylinder 13, and is continuously picked up and dropped under the action of the turning piece 16, and contacts with the hot air to take away moisture. When the linkage column 1622 on the side of the rotating plate 162 is pressed by the adjustment block 165, the rotation is completed. When the rotating plate 162 rotates to the top, it is no longer parallel to the upper surface of the workbench 11. The side of the rotating plate 162 close to the discharge baffle 15 is lower, and more inorganic pigments will fall to the lower material pipe 151 in the inclined direction of the rotating plate 162. The overall drying time is shortened, and the time for the material to pass through the cylinder 13 is short, which is suitable for relatively dry materials.

[0040] Advantage 2: the rotating plate 162 is rotated to a certain angle through the adjusting block 165, so as to change the feeding path of the inorganic pigment inside the rotating plate 162 of the copying plate 161 machine. When the rotating plate 162 continues to rotate, the side plate of the scraper 174 in the cleaning mechanism 17 can also realize the function of resetting the rotating plate 162.

[0041] Advantage 3: The linkage disk 19 is fixedly connected to the cylinder 13 through the connecting rod 131. When the linkage disk 19 rotates with the cylinder 13, the bevel gear block 186 on its outer surface passes through the bevel gear block 186 and meshes with it, driving the driving rod 183 to rotate, thereby realizing the cleaning action of the scraper 174 in the cleaning mechanism 17 on the outer surface of the scraper plate 161. No additional power source is required to drive the cleaning mechanism 17 to clean the scraper plate 161, which is directly completed by the rotation of the drying furnace cylinder 13, reducing the operating cost of the equipment. The rotation of the cylinder 13 itself is to realize the drying of inorganic pigment materials. On this basis, its rotation is used to drive the cleaning mechanism 17, realizing the secondary utilization of energy, making the energy utilization of the entire drying system more sufficient and efficient.

[0042] Advantage 4: During the operation of the drying furnace, the rotation of the cylinder 13 is continuous, and the cleaning mechanism 17 will also continuously clean the copying plate 161. The cleaning mechanism 17 and the copying plate 161 maintain a relatively stable positional relationship, so that the copying plate 161 can be fully and evenly cleaned, and the materials adhering to the copying plate 161 can be removed in time to prevent the materials from accumulating and agglomerating on the copying plate 161, so as to always keep the copying plate 161 in a good working state, and further improve the drying efficiency and product quality.

[0043] Advantage 5: After the bevel gear block 186 passes through the bevel gear 185 and disengages from it, under the action of the spring 173, the sliding rod 172 quickly resets around the arc-shaped clamping strip 1711 on the outer surface of the circumference of the fixed shaft 171, and the residual inorganic pigment on the outer surface of the scraper 174 can be shaken off.

[0044] Advantage 6: timely cleaning of materials on the copying board 161 avoids long-term erosion and wear of the copying board 161 by inorganic pigment materials, prolongs the service life of the copying board 161, and timely cleaning of the copying board 161 by the cleaning mechanism 17 driven by the rotation of the cylinder 13, keeps the surface of the copying board 161 clean, can make the rotation of the cylinder 13 more stable, reduce the load of the cylinder 13, prolong the service life of the entire drying furnace, and reduce the frequency of cleaning and maintenance.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rotary drying furnace in the process of preparing inorganic pigments, characterized in that: include: A placement portion (1), the placement portion (1) comprising a workbench (11), the upper surface of the workbench (11) being rotatably connected to a cylinder (13) via a supporting wheel (12), one end of the cylinder (13) being rotatably connected to a feed cylinder (14) connected to the upper surface of the workbench (11), the feed cylinder (14) being communicated with the interior of the cylinder (13), one end of the cylinder (13) being rotatably connected to a discharge baffle (15) connected to the upper surface of the workbench (11), the circumferential inner wall of the cylinder (13) being provided with a turning piece (16) for turning over external inorganic pigments; A drying section (2), the drying section (2) comprising a heating cylinder (21), the outer surface of the heating cylinder (21) being fixedly connected to an end of a discharge baffle (15) away from the cylinder body (13), and a vent (22) being provided inside the discharge baffle (15); The material turning member (16) comprises a lifting plate (161), one side of the lifting plate (161) is fixedly connected to the inner wall of the cylinder (13), and the lifting plate (161) is connected to a rotating plate (162) for damped rotation via a rotating shaft (1611) arranged inside the lifting plate (161), a side of the lifting plate (161) away from the inner wall of the cylinder (13) is fixedly connected to a limiting plate (163) in contact with the outer surface of the rotating plate (162), and a side of the rotating plate (162) away from the material discharging baffle (15) is fixedly connected to a linkage column (1622); Wherein, a cleaning mechanism (17) for cleaning the copying plate (161) is arranged inside the cylinder (13).

2. The rotary drying furnace in the process of preparing inorganic pigments according to claim 1, characterized in that: A rotating shaft (164) rotatably connected to the outer surface of the discharge baffle (15) is arranged inside the barrel (13); one end of the rotating shaft (164) away from the feed barrel (14) passes through the discharge baffle (15) and is fixedly connected to a gear driven by an external drive base; one end of the rotating shaft (164) away from the gear passes through the feed barrel (14) and is fixedly connected to a connecting block; and an adjusting block (165) that fits the linkage column (1622) is arranged on the circumferential surface of the rotating shaft (164).

3. The rotary drying furnace in the process of preparing inorganic pigments according to claim 1, characterized in that: The upper surface of the workbench (11) is fixedly connected to a limit rod (111). The cleaning mechanism (17) comprises a fixed shaft (171). The fixed shaft (171) is connected to a sliding rod (172) by rotation of an arc-shaped clamping strip (1711) arranged on the outer surface of the fixed shaft (171). One end of the fixed shaft (171) passes through the discharge baffle (15) and is fixedly connected to the outer surface of the limit rod (111). The other end of the fixed shaft (171) passes through the feed barrel (14) and is provided with a driving member (18) for moving the sliding rod (172). The end of the sliding rod (172) away from the driving member (18) is provided with a spring (173) connected to the outer surface of the limit rod (111), and the spring (173) is sleeved on the outer surface of the sliding rod (172). The outer surface of the sliding rod (172) is fixedly connected to a scraper (174) that fits the outer surface of the copying plate (161).

4. The rotary drying furnace in the process of preparing inorganic pigments according to claim 3, characterized in that: A connecting rod (131) is fixedly connected to the side of the barrel (13) away from the discharge baffle (15), and a linkage disk (19) that fits the circumferential outer surface of the feed barrel (14) is fixedly connected to the side of the connecting rod (131) away from the discharge baffle (15).

5. The rotary drying furnace in the process of preparing inorganic pigments according to claim 3, characterized in that: The driving member (18) comprises a rotating seat (181), wherein the rotating seat (181) is slidably connected to the circumferential outer surface of the feed barrel (14); the end of the fixed shaft (171) away from the limiting rod (111) is fixedly connected to the circumferential outer surface of the feed barrel (14); the rotating seat (181) is rotatably connected to the outer surface of the sliding rod (172) via a buckle arranged on the inner wall thereof; the rotating seat (181) is rotatably connected to the rotating rod (182) on one side close to the linkage disk (19); the rotating rod (182) is rotatably connected to the driving rod (183) on one end away from the rotating seat (181); and the driving rod (183) is rotatably connected to the positioning shaft (184) on one side close to the feed barrel (14).

6. The rotary drying furnace in the process of preparing inorganic pigments according to claim 5, characterized in that: One end of the positioning shaft (184) away from the driving rod (183) is fixedly connected to the circumferential outer surface of the feed barrel (14); one side of the driving rod (183) away from the positioning shaft (184) is fixedly connected to a bevel gear (185); one end of the linkage disk (19) close to the barrel (13) is fixedly connected to a bevel gear block (186); a plurality of bevel gear blocks (186) are provided and distributed in a circular array with the barrel (13) as the axis.

7. The rotary drying furnace in the process of preparing inorganic pigments according to claim 6, characterized in that: A gear ring (132) is fixedly connected to the circumferential outer surface of the cylinder (13), a drive motor (112) is fixedly connected to the upper surface of the workbench (11), and an output end of the drive motor (112) is drivingly connected to a drive gear (113) meshing with the gear ring (132).

8. The rotary drying furnace in the process of preparing inorganic pigments according to claim 7, characterized in that: One end of the discharge baffle (15) away from the barrel (13) is fixedly connected to a discharge pipe (151), one end of the feed barrel (14) away from the barrel (13) is fixedly connected to an exhaust pipe (141), and the circumferential outer surface of the feed barrel (14) is fixedly connected to a feed port (142).

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