A rotary drying furnace during the preparation process of an inorganic pigment

Abstract

The present invention relates to the technical field of drying furnaces, and discloses a rotary drying furnace in the process of preparing inorganic pigments, including a placement part. The placement part includes a workbench, and the upper surface of the workbench is rotatably connected with a cylinder body through a supporting wheel. One end of the cylinder body is rotatably connected with a feed cylinder connected to the upper surface of the workbench. This rotary drying furnace in the process of preparing inorganic pigments can effectively solve the problems in the prior art that the drying furnace is in a continuous rotating state, the time taken for the material to enter the furnace body from the beginning until it flows out of the furnace body after processing is basically unchanged, and the residence time of the inorganic pigment flowing through the cylinder body is also constant. When producing inorganic pigments in different batches with different wet and dry degrees, it is impossible to adjust the drying time according to the actual situation, which easily causes problems such as uneven color of the pigment, excessive moisture residue, and particle agglomeration.

Description

Technical Field

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

[0002] A drying furnace is a device used to remove moisture or other volatile components from materials. It provides an environment conducive to moisture evaporation for the materials through means such as heating and ventilation, enabling the materials to reach the desired drying degree. Drying furnaces are widely used in many industries such as chemical engineering, food, pharmaceuticals, and building materials, and are one of the important devices 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 enter the furnace body from the beginning until it flows out of the furnace body after processing is basically constant, and the duration for the inorganic pigment to flow through the cylinder is also constant. When producing inorganic pigments in different batches with different wet-dry degrees, it is impossible to adjust the drying time accordingly according to the actual situation, which easily causes problems such as uneven color of the pigment, excessive moisture residue, and particle agglomeration. Summary of the Invention

[0004] Technical Problems to be Solved

[0005] In view of the above-mentioned drawbacks of the prior art, the present invention provides a rotary drying furnace in the process of preparing inorganic pigments, which can effectively solve the problems in the prior art that the drying furnace is in a continuous rotating state, the time taken for the material to enter the furnace body from the beginning until it flows out of the furnace body after processing is basically constant, the duration for the inorganic pigment to flow through the cylinder is also constant, and when producing inorganic pigments in different batches with different wet-dry degrees, it is impossible to adjust the drying time accordingly according to the actual situation, which easily causes problems such as uneven color of the pigment, excessive moisture residue, and particle agglomeration.

[0006] To achieve the above object, the present invention is realized through the following technical solutions:

[0007] The present invention provides a rotary drying furnace in the process of preparing inorganic pigments, including:

[0008] 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 inside of the feed cylinder is communicated with the inside of the cylinder, the other 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 a material turning member for turning the external inorganic pigment is provided on the circumferential inner wall of the cylinder;

[0009] The drying section, the drying section includes a heating cylinder, the outer surface of the heating cylinder is fixedly connected to one end of the discharge baffle away from the cylinder body, and a ventilation opening is provided inside the discharge baffle;

[0010] Among them, the material turning member includes a scraper plate, one side of the scraper plate is fixedly connected to the inner wall of the cylinder body, and the scraper plate is rotationally connected with a rotating plate through a rotating shaft damping arranged inside it. A limiting plate that fits the outer surface of the rotating plate is fixedly connected to the side of the scraper plate away from the inner wall of the cylinder body, and a linkage column is fixedly connected to the side of the rotating plate away from the discharge baffle;

[0011] Among them, a cleaning mechanism for cleaning the scraper plate is provided inside the cylinder body.

[0012] Further, a rotating shaft rotatably connected to the outer surface of the discharge baffle is provided inside the cylinder body. One end of the rotating shaft away from the feed cylinder penetrates through the discharge baffle and is fixedly connected to a gear driven by an external driving base. One end of the rotating shaft away from the gear penetrates through the feed cylinder and is fixedly connected to a connecting block. An adjusting block that fits the linkage column is provided on the circumferential outer surface of the rotating shaft.

[0013] Further, a limiting rod is fixedly connected to the upper surface of the workbench. The cleaning mechanism includes a fixed shaft. The fixed shaft is rotationally connected to a sliding rod through an arc-shaped clamping strip arranged on its circumferential outer surface. One end of the fixed shaft penetrates through the discharge baffle and is fixedly connected to the outer surface of the limiting rod. The other end of the fixed shaft penetrates through the feed cylinder and is provided with a driving member for moving the sliding rod. A spring connected to the outer surface of the limiting rod is provided at the end of the sliding rod away from the driving member, and the spring is sleeved on the circumferential outer surface of the sliding rod. A scraper that fits the outer surface of the scraper plate is fixedly connected to the circumferential outer surface of the sliding rod.

[0014] Further, a connecting rod is fixedly connected to the side of the cylinder body away from the discharge baffle. A linkage disk that fits the circumferential outer surface of the feed cylinder is fixedly connected to the side of the connecting rod away from the discharge baffle.

[0015] Further, the driving member includes a rotating seat. The rotating seat is slidably connected to the circumferential outer surface of the feed cylinder. One end of the fixed shaft away from the limiting rod is fixedly connected to the circumferential outer surface of the feed cylinder. The rotating seat is rotationally connected to the outer surface of the sliding rod through a buckle arranged on its inner wall. A rotating rod is rotationally connected to one side of the rotating seat close to the linkage disk. One end of the rotating rod away from the rotating seat is rotationally connected to a driving rod. A positioning shaft is rotationally connected to one side of the driving rod close to the feed cylinder.

[0016] Further, one end of the positioning shaft away from the driving rod is fixedly connected to the circumferential outer surface of the feeding cylinder. One side of the driving rod away from the positioning shaft is fixedly connected with a bevel gear. One end of the linkage disk close to the cylinder body is fixedly connected with a bevel gear block. A plurality of bevel gear blocks are provided and are circumferentially arrayed around the cylinder body as the axis.

[0017] Further, a toothed ring is fixedly connected to the circumferential outer surface of the cylinder body. A driving motor is fixedly connected to the upper surface of the workbench. The output end of the driving motor is in transmission connection with a driving gear meshing with the toothed ring.

[0018] Further, one end of the discharge baffle away from the cylinder body is fixedly communicated with a blanking pipe. One end of the feeding cylinder away from the cylinder body is fixedly communicated with an exhaust pipe. A feeding port is fixedly communicated with the circumferential outer surface of the feeding cylinder.

[0019] The technical solution provided by the present invention has the following beneficial effects compared with the prior art:

[0020] The present invention is provided with a scraping plate, a rotating plate and an adjusting block. The scraping plate in the material turning member is fixedly connected to the inner wall of the cylinder body and rotates along with the cylinder body. The production time required can be adjusted according to the drying degree of the inorganic pigment in different production batches. When the material is relatively wet, keep the initial state of the gear without adjustment, that is, the adjusting block on the circumferential outer surface of the rotating shaft does not contact the linkage column, the rotating plate keeps the initial state and coincides with the side of the scraping plate. When the material turning member rises to the upper part of the cylinder body, the rotating plate is horizontal with the upper surface of the workbench, and the lifted material evenly falls from all directions of the rotating plate and is evenly sprinkled inside the cylinder body. The drying cycle is long and it can fully contact with hot air multiple times. When the material is relatively dry, use the driving base to rotate the gear to a certain extent, drive the rotating shaft to rotate the adjusting block towards the linkage column. When the cylinder body drives the rotating plate to move past the adjusting block, the adjusting block rotates the rotating plate around the rotating shaft by a certain angle through the linkage column. When the scraping plate and the rotating plate rise to the upper part of the cylinder body, the rotating plate is in an inclined state with the workbench, and the side of the rotating plate close to the discharge baffle is lower. More inorganic pigments will fall towards the blanking pipe along the inclined direction of the rotating plate. The overall drying time is shortened and the time for the material to pass through the cylinder body is short. For relatively dry materials, the drying time can be appropriately shortened to prevent problems such as material deterioration, performance decline or dust generation due to over-drying. For relatively wet materials, extending the drying time can make them fully dry and reach the required water content standard, avoiding affecting subsequent processing or use due to incomplete drying. It can flexibly adjust the drying time, reduce unnecessary energy consumption, lower production costs, and improve the energy utilization efficiency of the drying process. Description of the Drawings

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0022] Figure 1 Schematic diagram of the three-dimensional structure of the embodiment of the present invention;

[0023] Figure 2 Schematic diagram of the cross-sectional structure of the cylinder body of the embodiment of the present invention;

[0024] Figure 3 Side view of the cylinder body of the embodiment of the present invention;

[0025] Figure 4 Schematic diagram of the separation structure of the cylinder body, the feed cylinder and the discharge baffle of the embodiment of the present invention;

[0026] Figure 5 Schematic diagram of the cross-sectional structure of the cylinder body of the embodiment of the present invention from another angle;

[0027] Figure 6 Schematic diagram of the structure of the turning part of the embodiment of the present invention;

[0028] Figure 7 Schematic diagram of the separation structure of the fixed shaft, the sliding rod and the rotating shaft of the embodiment of the present invention;

[0029] Figure 8 Schematic diagram of the structure of the scraper, the rotating plate and the adjusting block of the embodiment of the present invention;

[0030] <( Figure 9 Schematic diagram of the structure of the feed cylinder and the cleaning mechanism of the embodiment of the present invention;

[0031] Figure 10 Schematic diagram of the structure of the driving part and the linkage disk of the embodiment of the present invention;

[0032] Figure 11 Schematic diagram of the structure of the rotating seat, the fixed shaft and the sliding rod of the embodiment of the present invention.

[0033] The reference numerals in the figure respectively represent: 1. placing part; 11. workbench; 111. limiting rod; 112. driving motor; 113. driving gear; 12. supporting wheel; 13. cylinder body; 131. connecting rod; 132. toothed ring; 14. feeding cylinder; 141. exhaust pipe; 142. feeding port; 15. discharging baffle; 151. discharging pipe; 16. material turning part; 161. scraping 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. scraping blade; 18. driving part; 181. rotating seat; 182. rotating rod; 183. driving rod; 184. positioning shaft; 185. bevel gear; 186. bevel gear block; 19. linkage disk; 2. drying part; 21. heating cylinder; 22. ventilation port. Detailed implementation manners

[0034] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0035] The present invention will be further described below with reference to the embodiments.

[0036] Embodiment:

[0037] Please refer to Figures 1-11 , the present invention provides a technical solution: a rotary drying furnace in the preparation process of inorganic pigments, comprising:

[0038] Placing part 1, the placing part 1 includes a workbench 11, the upper surface of the workbench 11 is rotatably connected with a cylinder body 13 through a supporting wheel 12, one end of the cylinder body 13 is rotatably connected with a feeding cylinder 14 connected to the upper surface of the workbench 11, the inside of the feeding cylinder 14 is communicated with the inside of the cylinder body 13, the other end of the cylinder body 13 away from the feeding cylinder 14 is rotatably connected with a discharging baffle 15 connected to the upper surface of the workbench 11, a material turning part 16 for turning the external inorganic pigments is arranged on the circumferential inner wall of the cylinder body 13, and the feeding cylinder 14 is composed of two parts, a hollow plate and a hollow cylinder;

[0039] Drying part 2, the drying part 2 includes a heating cylinder 21, the outer surface of the heating cylinder 21 is fixedly connected to the end of the discharging baffle 15 away from the cylinder body 13, and a ventilation port 22 is arranged inside the discharging baffle 15;

[0040] Among them, the material turning member 16 includes a copying plate 161. One side of the copying plate 161 is fixedly connected to the inner wall of the cylinder body 13, and the copying plate 161 is damping-rotationally connected to a rotating plate 162 through a rotating shaft 1611 arranged inside it. A limiting plate 163 that fits the outer surface of the rotating plate 162 is fixedly connected to the side of the copying plate 161 away from the inner wall of the cylinder body 13. A linkage column 1622 is fixedly connected to the side of the rotating plate 162 away from the discharge baffle 15.

[0041] Among them, a cleaning mechanism 17 for cleaning the copying plate 161 is arranged inside the cylinder body 13.

[0042] A rotating shaft 164 rotatably connected to the outer surface of the feed cylinder 14 is arranged inside the cylinder body 13. One end of the rotating shaft 164 away from the feed cylinder 14 penetrates 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 penetrates through the feed cylinder 14 and is fixedly connected to a connecting block. An adjusting block 165 that fits the linkage column 1622 is arranged on the circumferential outer surface of the rotating shaft 164.

[0043] A limiting rod 111 is fixedly connected to the upper surface of the workbench 11. The cleaning mechanism 17 includes a fixed shaft 171. The fixed shaft 171 is rotationally connected to a sliding rod 172 through an arc-shaped clamping strip 1711 arranged on its circumferential outer surface. One end of the fixed shaft 171 penetrates through the discharge baffle 15 and is fixedly connected to the outer surface of the limiting rod 111. The other end of the fixed shaft 171 penetrates through the feed cylinder 14 and is provided with a driving member 18 for moving the sliding rod 172. A spring 173 connected to the outer surface of the limiting rod 111 is arranged at the end of the sliding rod 172 away from the driving member 18. A scraping plate 174 that fits the outer surface of the copying plate 161 is fixedly connected to the circumferential outer surface of the sliding rod 172. Both ends of the sliding rod 172 extend to the outer surfaces of the discharge baffle 15 and the feed cylinder 14 away from the cylinder body 13, avoiding the situation that the cleaning mechanism 17 has gaps inside the cylinder body 13 and is affected by dust.

[0044] A connecting rod 131 is fixedly connected to the side of the cylinder body 13 away from the discharge baffle 15. A linkage disk 19 that fits the circumferential outer surface of the feed cylinder 14 is fixedly connected to the side of the connecting rod 131 away from the discharge baffle 15.

[0045] The driving member 18 includes a rotating seat 181. The rotating seat 181 is slidably connected to the circumferential outer surface of the feed cylinder 14. One end of the fixed shaft 171 away from the limiting rod 111 is fixedly connected to the circumferential outer surface of the feed cylinder 14. The rotating seat 181 is rotationally connected to the outer surface of the sliding rod 172 through a buckle arranged on its inner wall. A rotating rod 182 is rotationally connected to the side of the rotating seat 181 close to the linkage disk 19. One end of the rotating rod 182 away from the rotating seat 181 is rotationally connected to a driving rod 183. A positioning shaft 184 is rotationally connected to the side of the driving rod 183 close to the feed cylinder 14.

[0046] One end of the positioning shaft 184 away from the driving rod 183 is fixedly connected to the outer circumferential surface of the feeding cylinder 14. A bevel gear 185 is fixedly connected to the side of the driving rod 183 away from the positioning shaft 184. One end of the linkage disk 19 close to the cylinder body 13 is fixedly connected with a bevel gear block 186. There are a plurality of bevel gear blocks 186, which are circumferentially arrayed with the cylinder body 13 as the axis. The number of bevel gear blocks 186 is the same as the number of the scraping plates 161 in the radial circumferential direction inside the cylinder body 13 and they correspond one by one.

[0047] A toothed ring 132 is fixedly connected to the outer circumferential surface of the cylinder body 13. A driving motor 112 is fixedly connected to the upper surface of the workbench 11. The output end of the driving motor 112 is in transmission connection with a driving gear 113 meshing with the toothed ring 132.

[0048] One end of the discharge baffle 15 away from the cylinder body 13 is fixedly communicated with a blanking pipe 151. One end of the feeding cylinder 14 away from the cylinder body 13 is fixedly communicated with an exhaust pipe 141. A feeding port 142 is fixedly communicated with the outer circumferential surface of the feeding cylinder 14.

[0049] The process of stir-frying inorganic pigments by the material turning member 16:

[0050] In the actual application process, the inorganic pigments to be processed are put in from the feeding port 142 in the placing part 1. The feeding cylinder 14 is designed to be slightly inclined, with the side close to the exhaust pipe 141 being higher and the side close to the blanking pipe 151 being lower. The inorganic pigments enter the feeding cylinder 14. Due to the inclination inside the feeding cylinder 14, under the action of its own gravity, the inorganic pigments flow into the inner wall of the lower cylinder body 13. After the feeding of the inorganic pigments is completed, the driving motor 112 is started to drive the driving gear 113 to rotate. At the same time, the toothed ring 132 meshing with the driving gear 113 moves synchronously. Under the action of the toothed ring 132, the cylinder body 13 rotates under the support and limit of the supporting wheels 12. At this time, the heating cylinder 21 also starts to operate, driving hot air to flow into the cylinder body 13 from the ventilation port 22, taking away the moisture contained in the inorganic pigments inside the cylinder body 13, and then discharging it through the feeding cylinder 14 from the exhaust pipe 141.

[0051] When the cylinder body 13 rotates clockwise, the plowshare 161 fixedly connected to its inner wall also rotates synchronously. When the plowshare 161 rotates past the bottommost part of the inner wall of the cylinder body 13, it scoops up the inorganic pigment accumulated at the bottom of the inner wall of the cylinder body 13. The inorganic pigment is on the left outer surface of the plowshare 161. The inorganic pigment moves upward clockwise along with the plowshare 161 and is driven to the top of the inner wall of the cylinder body 13. During this process, as the angle of the plowshare 161 changes, a certain amount of the inorganic pigment naturally falls under the action of gravity. Until the plowshare 161 passes the highest point of the inner wall of the cylinder body 13 and continues to rotate clockwise, at this time, the remaining inorganic pigment in the plowshare 161 accumulates on the upper surface of the rotating plate 162. When continuing to rotate, due to the relatively large inclination angle of the plowshare 161, the internal inorganic pigment is scattered downward, so that the inorganic pigment is dispersed, the gap between each other increases, the contact area with the hot air is increased, and the contact time with the hot air is prolonged, which helps the moisture in the inorganic pigment to be carried away by the hot air. When the plowshare 161 rotates 90 degrees from the highest point, there is no longer any inorganic pigment inside the plowshare 161 and the rotating plate 162, and at this time, the plowshare 161 also comes to the position of the cleaning mechanism 17.

[0052] Process of changing the drying time of the inorganic pigment:

[0053] Since the cylinder body 13 adopts a straight cylinder design, and the internal material realizes scooping up and falling through the rotation of the cylinder body 13, the rotation angle of the rotating plate 162 can be changed to realize the conversion of the path of the inorganic pigment being thrown down from a high altitude. Among the turning members 16 at the topmost, when the side of the rotating plate 162 close to the discharge baffle 15 is lower, the inorganic pigment will fall towards the discharge baffle 15 after being scooped up, reducing the drying time of the material inside the cylinder body 13; when the rotating plate 162 is in a horizontal state with the workbench 11, the inorganic pigment will fall from all directions of the rotating plate 162 after being scooped up, and the material is relatively uniform inside the cylinder body 13, increasing the drying time of the material inside the cylinder body 13.

[0054] The adjusting block 165 is designed in a semi-circular shape. In the initial state, when the cylinder 13 rotates, the adjusting block 165 does not contact the linkage column 1622. When it is necessary to adjust the drying time, an external driving base is used to drive the gear on the outer surface of the discharge baffle 15, driving the rotating shaft 164 to rotate. The adjusting block 165 fixedly connected to the outer circumferential surface of the rotating shaft 164 rotates synchronously. At this time, when the cylinder 13 rotates, the outer circumferential surface of the adjusting block 165 will contact the linkage column 1622. When the material turning member 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 adjusting block 165 and rotates dampedly around the rotating shaft 1611 under the pressing action of the adjusting block 165 (the specific rotation angle of the rotating plate 162 is determined by the angle of the adjusting block 165. The greater the rotational stroke of the gear, the greater the rotation degree of the adjusting 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).

[0055] After the rotating plate 162 rotates dampedly under the action of the adjusting block 165, it continues to rotate with the cylinder 13 in this state. When the rotating plate 162 is at the upper part of the cylinder 13, the center of gravity of the inorganic pigment transfers 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 closer to the discharge baffle 15 is lower. More inorganic pigment will fall from the upper part of the rotating plate 162 to the side closer to the discharge baffle 15 in the air, in the direction closer to the blanking pipe 151. As the cylinder 13 continues to rotate from the highest point and approaches ninety degrees, there is no inorganic pigment on the outer surfaces of the rotating plate 162 and the copying plate 161, and all of them fall to the bottom of the cylinder 13. However, the rotating plate 162 is still in an inclined state. The copying plate 161 is parallel to the upper surface of the workbench 11, and for the half of the rotating plate 162 closer to the discharge baffle 15, the distance between it and the inner wall of the cylinder 13 is larger, and for the other half closer to the feed cylinder 14, the distance between it and the inner wall of the cylinder 13 is smaller. When the material turning member 16 rotates with the cylinder 13 above the cleaning mechanism 17, the upper surface of the scraping plate 174 fits with the lower surface of the copying plate 161 and is on the side of the scraping plate 174 closer to the discharge baffle 15. At this time, the side of the scraping plate 174 does not contact the rotating plate 162. A layer of flexible material is sleeved on the outer surface of the scraping plate 174, and the overall design is soft on the outside and rigid on the inside. As the cylinder 13 continues to rotate, the scraping plate 174 moves to the side of the rotating plate 162 away from the discharge baffle 15, and the scraping plate 174 rotates while advancing around the fixed shaft 171 and always fits with the lower surface of the copying plate 161. When the scraping plate 174 moves to the position of the rotating shaft 1611 of the rotating plate 162, as the scraping plate 174 moves, the side plate of it will fit with the rotating plate 162 and change the rotating plate 162 from the inclined state to the initial state perpendicular to the copying plate 161, completing the reset action of the rotating plate 162.

[0056] A limiting plate 163 is fixed to the side of the copying plate 161 to prevent the rotating plate 162 from rotating in the other direction around the rotating shaft 1611. At the same time, the rotating plate 162 rotates with damping and the maximum rotation angle is 45 degrees.

[0057] The process of cleaning the copying plate 161:

[0058] When the inorganic pigment is in the initial stage of drying and has a large water content, when the copying plate 161 contacts the inorganic pigment through the bottom of the cylinder body 13, the left side of the bottom copying plate 161 will adhere to the inorganic pigment, forming agglomerates on the surface of the copying plate 161. When it continues to rotate, it can no longer bring the bottom inorganic pigment to the upper part, resulting in a poor drying effect.

[0059] A fixed shaft 171 is arranged inside the cylinder body 13. The two ends of the fixed shaft 171 respectively penetrate through the feeding cylinder 14 and the discharge baffle 15 and are fixedly connected to the workbench 11. When the cylinder body 13 rotates, the connecting rod 131 fixedly connected to the cylinder body 13 rotates together with the linkage disk 19. At the same time, the bevel gear block 186 arranged on the side of the linkage disk 19 close to the cylinder body 13 rotates synchronously. The number of bevel gear blocks 186 is the same as the number of copying plates 161 in the same axial range and corresponds to them one by one. The bevel gear block 186 rotates synchronously with the cylinder body 13 on the linkage disk 19. A sliding rod 172 is slidably connected to the outer circumferential surface of the fixed shaft 171. The two ends of the sliding rod 172 also respectively extend to the outer surfaces of the feeding cylinder 14 and the discharge baffle 15, reducing unnecessary dead corners generated by the cleaning mechanism 17 inside the cylinder body 13. One end of the sliding rod 172 away from the discharge baffle 15 is slidably connected to the outer circumferential surface of the feeding cylinder 14 through a rotating seat 181.

[0060] When the linkage disk 19 rotates synchronously, the bevel gear block 186 rotates together with it. The bevel gear 185 is rotatably connected to the drive rod 183 and remains stationary at this position through the positioning shaft 184 fixedly connected to the feed cylinder 14. The number of the radial ranges of the scraper plates 161 is the same as that of the scraping plates 174, and the scraping plates 174 correspond to the scraper plates 161 one by one. In the initial state, the scraping plates 174 are located on the right side of the scraper plates 161. As the scraper plates 161 rotate with the cylinder body 13 and are about to reach the upper surface of the scraping plates 174, at the moment when the lower surface of the scraper plates 161 fits against the upper surface of the scraping 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 drive rod 183. The drive rod 183 rotates around the positioning shaft 184. The drive rod 183 is rotatably connected to the rotating rod 182, and the rotating rod 182 rotates accordingly, and the included angle between the drive rod 183 and the rotating rod 182 becomes larger. 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 its action, 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. The distance between the sliding rod 172 and the limiting rod 111 decreases, and the spring 173 is in a compressed state.

[0061] The scraping plates 174 inside the cylinder body 13 are fixedly connected to the circumferential outer surface of the sliding rod 172, and the scraping plates 174 also move away from the linkage disk 19. At the same time, the upper surface of the scraping plates 174 fits tightly against the lower surface of the scraper plates 161. When the scraping plates 174 gradually move from the right side of the scraper plates 161 to the left side of the scraper plates 161. During this process, the cylinder body 13 drives the scraping plates 174 and the bevel gear 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 clamping strip 1711, ensuring that the scraping plates 174 can always fit against the outer surface of the scraper plates 161 during the movement of the cylinder body 13. The edge of the scraping plates 174 can scrape off the inorganic pigments remaining on the outer surface of the scraper plates 161 at this position and not successfully dropped from right to left, ensuring the cleanliness of the scraper plates 161, enabling the scraper plates 161 to effectively scoop up and throw the inorganic pigments every time they rotate, allowing the inorganic pigments to be fully exposed in the hot air, ensuring that all parts of it can effectively absorb heat, reducing the wear and corrosion of the scraper plates 161 caused by the inorganic pigments, and reducing the cleaning and maintenance frequency.

[0062] As the cylinder body 13 continues to rotate, the bevel gear block 186 disengages from the bevel gear 185. After the spring 173 loses its limiting effect, it quickly bounces open, moving the sliding rod 172 towards the linkage disc 19, driving the rotating seat 181 to slide towards the side close to the linkage disc 19. The distance between the rotating seat 181 and the bevel gear 185 becomes smaller, 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 restoring its initial state. The scraper 174 also restores its initial state under the action of the sliding rod 172 and is located on the right side of the material lifter 161. The cleaning mechanism 17 waits for the next bevel gear block 186 to engage with the bevel gear 185 to drive the scraper 174 to clean the surface of the sliding rod 172. The cleaning mechanism 17 will complete the cleaning action on the outer surface of each material lifter 161 as the cylinder body 13 continuously rotates.

[0063] After the inorganic pigment is dried, it will move towards the heating cylinder 21 and finally be discharged from the blanking pipe 151.

[0064] In summary, the following advantages exist in the process of cleaning the material lifter 161:

[0065] Advantage 1: The direction of the inorganic pigment falling from a high place can be realized 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 the inorganic pigment falling is relatively uniform, and it evenly falls inside the cylinder body 13. It is continuously lifted and dropped under the action of the material turning part 16, contacts with the hot air to remove moisture. When the linkage column 1622 on the side of the rotating plate 162 is pressed by the adjusting block 165 and completes the rotation, the rotated rotating plate 162 is no longer parallel to the upper surface of the workbench 11 when it rotates to the upper side. The side of the rotating plate 162 close to the discharge baffle 15 is lower, and more inorganic pigment will fall towards the blanking pipe 151 along the inclined direction of the rotating plate 162. The overall drying time is shortened, the time for the material to pass through the cylinder body 13 is short, and it is suitable for relatively dry materials.

[0066] Advantage 2: The rotating plate 162 is rotated by a certain angle through the adjusting block 165 to change the blanking path of the inorganic pigment inside the material lifter 161 and the rotating plate 162 of the machine. When the rotating plate 162 continues to rotate, the side plate in the scraper 174 in the cleaning mechanism 17 can also realize the function of resetting the rotating plate 162.

[0067] 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 conical tooth block 186 on its outer surface passes by and meshes with the conical tooth block 186, driving the drive rod 183 to rotate, thereby realizing the cleaning action of the scraper 174 in the cleaning mechanism 17 on the outer surface of the plow plate 161. There is no need for an additional power source to drive the cleaning mechanism 17 to clean the plow plate 161. It is directly completed by relying on the rotation of the drying furnace cylinder 13. This reduces the operating cost of the equipment. The rotation of the cylinder 13 itself is to realize the drying of the inorganic pigment material. On this basis, its rotation is used to drive the cleaning mechanism 17, realizing the secondary utilization of energy and making the energy utilization of the entire drying system more sufficient and efficient.

[0068] Advantage 4: During the operation of the drying furnace, the rotation of the cylinder 13 is continuous, and the cleaning mechanism 17 will continuously clean the plow plate 161 accordingly. A relatively stable positional relationship is maintained between the cleaning mechanism 17 and the plow plate 161, so that the plow plate 161 can be cleaned comprehensively and evenly, and the materials adhered to the plow plate 161 can be removed in time, preventing the materials from accumulating and caking on the plow plate 161, and always maintaining the good working state of the plow plate 161, further improving the drying efficiency and product quality.

[0069] Advantage 5: When the conical tooth block 186 passes by and disengages from the bevel gear 185, under the action of the spring 173, the sliding rod 172 quickly resets around the arc-shaped strip 1711 on the outer surface of the fixed shaft 171, and can shake off the residual inorganic pigment on the outer surface of the scraper 174.

[0070] Advantage 6: Timely cleaning of the materials on the plow plate 161 avoids the long-term erosion and wear of the plow plate 161 by the inorganic pigment materials, extends the service life of the plow plate 161. By using the rotation of the cylinder 13 to drive the cleaning mechanism 17 to clean the plow plate 161 in time and keep the surface of the plow plate 161 clean, the rotation of the cylinder 13 can be made more stable, reducing the load on the cylinder 13, extending the service life of the entire drying furnace, and reducing the frequency of cleaning and maintenance.

[0071] 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 foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and 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 various embodiments of the present invention.

Claims

1. A rotary drying furnace in the process of preparing an inorganic pigment, characterized in that, Comprising: A placing part (1), the placing part (1) includes a workbench (11), the upper surface of the workbench (11) is rotatably connected to a cylinder body (13) through a supporting wheel (12), one end of the cylinder body (13) is rotatably connected to a feeding cylinder (14) connected to the upper surface of the workbench (11), the feeding cylinder (14) is communicated with the inside of the cylinder body (13), the end of the cylinder body (13) far from the feeding cylinder (14) is rotatably connected to a discharge baffle (15) connected to the upper surface of the workbench (11), and a material turning member (16) for turning the inorganic pigment is arranged on the circumferential inner wall of the cylinder body (13); A drying part (2), the drying part (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) far from the cylinder body (13), and a ventilation opening (22) is formed in the inside of the discharge baffle (15); Wherein, the material turning member (16) includes a scraping plate (161), one side of the scraping plate (161) is fixedly connected to the inner wall of the cylinder body (13), and the scraping plate (161) is dampedly rotatably connected to a rotating plate (162) through a rotating shaft (1611) arranged inside it, a limiting plate (163) fitting the outer surface of the rotating plate (162) is fixedly connected to the side of the scraping plate (161) far from the inner wall of the cylinder body (13), and a linkage column (1622) is fixedly connected to the side of the rotating plate (162) far from the discharge baffle (15); Wherein, a cleaning mechanism (17) for cleaning the scraping plate (161) is arranged inside the cylinder body (13); Among them, a rotating shaft (164) rotatably connected to the outer surface of the discharge baffle (15) is arranged inside the cylinder body (13). One end of the rotating shaft (164) away from the feed cylinder (14) penetrates 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 penetrates through the feed cylinder (14) and is fixedly connected to a connecting block. An adjusting block (165) fitting with the linkage column (1622) is arranged on the circumferential outer surface of the rotating shaft (164). A limiting rod (111) is fixedly connected to the upper surface of the workbench (11). The cleaning mechanism (17) includes a fixed shaft (171). The fixed shaft (171) is rotatably connected to a sliding rod (172) through an arc-shaped clamping strip (1711) arranged on its circumferential outer surface. One end of the fixed shaft (171) penetrates through the discharge baffle (15) and is fixedly connected to the outer surface of the limiting rod (111). The other end of the fixed shaft (171) penetrates through the feed cylinder (14). A driving member (18) for moving the sliding rod (172) is connected to the sliding rod (172). 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 clamping strip (1711). One 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 limiting rod (111), and the spring (173) is sleeved on the circumferential outer surface of the sliding rod (172). A scraping plate (174) fitting with the outer surface of the copying plate (161) is fixedly connected to the circumferential outer surface of the sliding rod (172).

2. The rotary drying furnace in the preparation process of the inorganic pigment according to claim 1, characterized in that: A connecting rod (131) is fixedly connected to one side of the cylinder body (13) away from the discharge baffle (15). A linkage disc (19) fitting with 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).

3. The rotary drying furnace in the preparation process of an inorganic pigment according to claim 2, characterized in that: The driving member (18) includes a rotating seat (181). The rotating seat (181) is slidably connected to the circumferential outer surface of the feed cylinder (14). One end of the fixed shaft (171) away from the limiting rod (111) is fixedly connected to the circumferential outer surface of the feed cylinder (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. A rotating rod (182) is rotatably connected to one side of the rotating seat (181) close to the linkage disc (19). One end of the rotating rod (182) away from the rotating seat (181) is rotatably connected to a driving rod (183). A positioning shaft (184) is rotatably connected to one side of the driving rod (183) close to the feed cylinder (14).

4. A rotary drying furnace in the preparation process of an inorganic pigment according to claim 3, characterized in that: One end of the positioning shaft (184) far from the driving rod (183) is fixedly connected to the outer circumferential surface of the feeding cylinder (14). A bevel gear (185) is fixedly connected to one side of the driving rod (183) far from the positioning shaft (184). A bevel gear block (186) is fixedly connected to one end of the linkage disk (19) close to the cylinder body (13). A plurality of bevel gear blocks (186) are provided and are circumferentially arrayed with the cylinder body (13) as the axis.

5. A rotary drying furnace in the preparation process of an inorganic pigment according to claim 4, characterized in that: A toothed ring (132) is fixedly connected to the outer circumferential surface of the cylinder body (13). A driving motor (112) is fixedly connected to the upper surface of the workbench (11). The output end of the driving motor (112) is drivingly connected to a driving gear (113) meshing with the toothed ring (132).

6. A rotary drying furnace in the preparation process of an inorganic pigment according to claim 5, characterized in that: One end of the discharge baffle (15) far from the cylinder body (13) is fixedly communicated with a blanking pipe (151). One end of the feeding cylinder (14) far from the cylinder body (13) is fixedly communicated with an exhaust pipe (141). A feeding port (142) is fixedly communicated with the outer circumferential surface of the feeding cylinder (14).

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