A color master batch drying device

Abstract

The present application relates to the technical field of color master batch production, and discloses a color master batch drying device, which comprises a drying cylinder body, a feeding mechanism connected to the upper end of the drying cylinder body, an upper partition plate and a lower partition plate fixed in the drying cylinder body, a sealing base fixed above the upper partition plate, and a disperser fixed on the sealing base; the disperser comprises a conical platform and a cone body, a plurality of circumferentially distributed and obliquely arranged distribution holes are formed on the outer edge of the conical platform, a high-pressure and high-temperature gas cavity is formed in the conical platform, and a plurality of upper and lower arranged air injection holes are formed on the side wall of each distribution hole close to the high-pressure and high-temperature gas cavity; a plurality of material falling pipes are arranged between the upper partition plate and the lower partition plate. The color master batch entering the drying cylinder body can be randomly and uniformly distributed into the plurality of distribution holes through the disperser, and the color master batch entering the distribution holes can be randomly rotated through the high-pressure and high-temperature gas, so that the drying effect and drying speed of the color master batch can be effectively improved, and the problem of uneven drying through the drying furnace in the prior art is solved.

Description

Technical Field

[0001] This invention relates to the field of color masterbatch production technology, and in particular to a color masterbatch drying device. Background Technology

[0002] Color masterbatch refers to a plastic colorant made by dispersing a high proportion of pigments or additives with thermoplastic resin. The resin used has good wetting and dispersing properties for the colorant and good compatibility with the material being colored. Color masterbatch coloring is currently the most common method for coloring plastics. Developed in the 1960s, color masterbatch is a new product for coloring plastics and fibers. It is a polymer composite made by uniformly loading pigments into resin in an extremely high amount. During traditional color masterbatch manufacturing, a high moisture content is maintained on the surface of the masterbatch to facilitate rapid cooling and setting. When the moisture content is high, the masterbatch is prone to sticking together, which is detrimental to transportation and storage, and can affect its performance and lifespan. The traditional method is to dry the masterbatch in a drying oven. While this method can dry the surface moisture, it is less effective for thicker layers of masterbatch. Furthermore, the large heat difference between the top and bottom of the thicker masterbatch can easily cause cracking. Summary of the Invention

[0003] The purpose of this invention is to provide a color masterbatch drying device. The color masterbatch entering the drying cylinder can be randomly and evenly distributed into multiple distribution holes by a disperser. The color masterbatch entering the distribution holes is rotated irregularly by high-pressure and high-temperature gas, which can effectively improve the drying effect and drying speed of the color masterbatch and solve the problem of uneven drying in the existing drying oven.

[0004] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0005] A masterbatch drying device includes a drying cylinder, the upper end of which is connected to a feeding mechanism, the feeding mechanism including a feeding pipe that is inserted and fixed to the top of the drying cylinder;

[0006] The drying cylinder is internally fixed with an upper partition and a lower partition. A sealing base is fixed above the upper partition, and a disperser is fixed on the sealing base.

[0007] The disperser includes an integrally formed truncated cone and a cone body located above the truncated cone. Both the cone body and the truncated cone are coaxially arranged with the feed pipe, and the cone body is located below the feed pipe. The outer edge of the truncated cone has a plurality of circumferentially distributed inclined distributing holes, and the interior of the truncated cone has a high-pressure and high-temperature gas chamber. Each distributing hole has a plurality of vertically arranged air jet holes on the side wall near the high-pressure and high-temperature gas chamber.

[0008] The outer edge of the upper partition is formed with a plurality of circumferentially distributed discharge holes. The lower end of each discharge hole is fixedly connected to a discharge tube, and the lower end of the discharge tube is inserted into and fixed to the lower partition.

[0009] The bottom of the drying cylinder is connected to a discharge pipe.

[0010] Through the above technical solution, the masterbatch after cooling and shaping in the upstream section is conveyed to the drying cylinder through the feeding mechanism and automatically falls to the top of the disperser through the feeding pipe. Through the action of the cone, the masterbatch falling from the feeding pipe is randomly and evenly dispersed in all directions. The masterbatch rolls down along the side wall of the cone and then enters the distribution hole. The high temperature gas in the high temperature and high pressure chamber is ejected from the jet hole, which can cause the masterbatch entering the distribution hole to turn irregularly and reduce the falling speed of the masterbatch, thereby making the masterbatch dry evenly and effectively.

[0011] The dried masterbatch flows out from the lower end of the distribution hole into the upper partition plate, and then is evenly dispersed again through multiple discharge holes into the discharge pipe. It then flows out from the bottom of the discharge pipe to the bottom of the drying cylinder, and finally flows out from the discharge pipe, thus obtaining the dried masterbatch.

[0012] The disperser can randomly disperse the concentrated masterbatch, thus improving the drying effect and efficiency of the masterbatch.

[0013] The present invention is further configured such that: the feeding mechanism also includes a temporary storage box disposed on one side of the drying cylinder, the temporary storage box is fixedly connected to the lower end of the conveying pipe, and the upper end of the conveying pipe is fixedly connected to the feeding pipe through a bent pipe;

[0014] A screw conveyor shaft is fitted inside the conveying pipe, and the upper end of the screw conveyor shaft is rotatably connected to a connecting frame, which is fixed to the upper end of the conveying pipe. A reduction gear is fixed to the upper protruding end of the screw conveyor shaft through the bent pipe. The reduction gear meshes with a drive gear, which is fixed to a motor. The motor is fixedly connected to the bent pipe through a motor bracket. The lower protruding end of the screw conveyor shaft through the conveying pipe is rotatably connected to the bottom of the temporary storage bin.

[0015] The lower side wall of the conveying pipe is formed with a water outlet groove; the bottom surface of the temporary storage box is formed with several drainage holes.

[0016] Through the above technical solution, the masterbatch after cooling and shaping in the upstream section automatically enters the temporary storage bin for temporary storage. During the temporary storage process, most of the water carried in the masterbatch can be drained out and automatically flows out of the temporary storage bin through the drain hole. Then, the motor drives the drive gear to rotate, and the drive gear drives the screw conveyor shaft to rotate through the reduction gear. The screw conveyor shaft conveys the masterbatch upward to the bending pipe and the feed pipe. Then, the masterbatch flows out from the feed pipe and enters the drying cylinder.

[0017] During the upward conveying of the masterbatch, the water separated from the masterbatch can be discharged through the water outlet tank.

[0018] The present invention is further configured such that: the interior of the spiral conveying shaft is formed with a vacuum channel with an opening on the lower side, and a plurality of radially penetrating water suction holes are formed on the side wall of the vacuum channel;

[0019] The bottom of the spiral conveyor shaft is connected to a vacuum tube via an air connector, and the other end of the vacuum tube is connected to a vacuum pump.

[0020] The vacuum tube is designed with higher ends and a lower middle section, and a drainage hole is formed at the lowest point of the vacuum tube.

[0021] Through the above technical solution, the vacuum pump draws air from the vacuum channel through the vacuum tube and air connector, making its interior a negative pressure state. The moisture adsorbed on the surface of the color masterbatch can be sucked into the vacuum channel through the water absorption hole, thereby further cleaning the moisture on the surface of the color masterbatch and minimizing the moisture content of the color masterbatch entering the drying cylinder.

[0022] The present invention is further configured such that: the upper end of the material distribution hole is formed with a first guide cone hole, and the minimum distance between the maximum ends of two adjacent first guide cone holes is ~ mm;

[0023] The upper end of the material discharge hole is formed with a second guide cone hole, and the minimum distance between the maximum ends of two adjacent second guide cone holes is ~ mm.

[0024] The above technical solution can effectively prevent the accumulation of color masterbatch and allow the color masterbatch to enter the first guide cone hole and the second guide cone hole in a timely manner.

[0025] The present invention is further configured such that multiple air jets on the same dispensing hole are arranged obliquely and each air jet has a different spray angle.

[0026] The above technical solution allows for thorough drying of the surface of each masterbatch entering the dispensing hole.

[0027] The present invention is further configured such that the material discharge pipe is arranged in a multi-stage "S" shape;

[0028] The material discharge tube is formed with multiple ventilation holes;

[0029] The bending points of multiple feed pipes are equipped with first heating coils, which are fixed inside the drying cylinder.

[0030] A second heating coil and a temperature sensor are fixedly installed inside the high-temperature and high-pressure chamber. The second heating coil and the temperature sensor are electrically connected to a controller.

[0031] Through the above technical solution, the first heating coil can heat the feeding pipe, so that the feeding pipe has a certain temperature, which allows the masterbatch passing through the feeding pipe to undergo the final drying process.

[0032] The "S"-shaped design of the discharge pipe increases the path and time for the masterbatch to flow within the discharge pipe, further improving the final drying effect.

[0033] The high-pressure gas entering the high-temperature, high-pressure chamber can be heated by the second heating coil, thereby ensuring that the gas ejected from the jet nozzle has a certain temperature. The gas temperature in the high-pressure chamber can be detected and adjusted by a temperature sensor and controller.

[0034] The present invention is further configured such that: the high-temperature and high-pressure chamber is connected to a waste heat utilization air intake mechanism;

[0035] The waste heat utilization air intake mechanism includes a high-pressure pipe that is inserted and fixed on the upper partition plate. The upper end of the high-pressure pipe extends into the high-temperature and high-pressure chamber. The other end of the high-pressure pipe is connected to an air compressor pump. The air compressor pump is fixed on a pump bracket. The pump bracket is fixed in the middle of the isolation pipe. The two ends of the isolation pipe are respectively sealed and fixedly connected to the upper partition plate and the lower partition plate.

[0036] The top of the drying cylinder is connected to multiple evenly distributed air outlet branch pipes, and the other end of the air outlet branch pipes is connected to the upper end of the vertically set air outlet main pipe. The two ends of the air outlet main pipe are sealed, and an air inlet pipe is sleeved inside the air outlet main pipe. The upper end of the air inlet pipe extends out of the air outlet main pipe, and the lower end of the air inlet pipe passes through the lower side wall of the drying cylinder and the lower partition in sequence and extends into the isolation pipe.

[0037] Spiral fins are fixed on a section of the outer wall of the air inlet pipe located inside the air outlet pipe, and an air outlet is connected to the lower end of the air outlet pipe.

[0038] Through the above technical solution, the high-temperature gas in the high-temperature and high-pressure chamber is sprayed out from the jet hole to dry the masterbatch. The high-temperature gas then flows upward and enters the main outlet pipe through multiple outlet branch pipes. The high-temperature gas in the main outlet pipe heats the middle section of the inlet pipe. Room temperature air enters the inlet pipe from the upper end. Since the temperature in the middle section of the inlet pipe is relatively high, the air entering the pipe can be heated and dried, so that the gas entering the isolation pipe has a certain temperature. Then, the air with a certain stable temperature is compressed by the air compressor pump and enters the high-temperature and high-pressure chamber.

[0039] By utilizing the waste heat of the exhaust gas, the heat utilization rate can be improved and energy consumption can be reduced.

[0040] The present invention is further configured such that: the upper end of the truncated cone is inserted into and fixed on the first conical cylinder which is larger at the top and smaller at the bottom, and the upper end of the first conical cylinder is fixedly connected to the inner wall of the drying cylinder;

[0041] The lower end of the truncated cone is inserted and fixed inside the rubber positioning ring, which is inserted into the drying cylinder.

[0042] Through the above technical solution, the first cone can prevent the masterbatch from being ejected outside the disperser when dispersing the masterbatch;

[0043] The center position of the disperser can be determined by the rubber positioning ring. Especially during the installation of the disperser, only by ensuring the center position of the disperser can the masterbatch entering from the feed pipe be evenly distributed.

[0044] The present invention is further configured such that a material distribution cone sleeve with a larger upper part and a smaller lower part is fixed on the inner wall of the lower end of the feed pipe.

[0045] With the above technical solution, since the masterbatch in the feed pipe enters from one side through the bent pipe, the masterbatch falling in the feed pipe also falls from one side, which makes it impossible for the disperser to disperse evenly. By setting a distribution cone sleeve with a small opening at the lower end of the distribution cone sleeve, the falling masterbatch can be made to fall from the center of the feed pipe as much as possible.

[0046] The beneficial effects of this invention are:

[0047] Compared with existing technologies, the disperser can randomly and evenly distribute the masterbatch entering the drying cylinder into multiple distribution holes. The high-pressure and high-temperature gas causes the masterbatch entering the distribution holes to rotate irregularly, which can effectively improve the drying effect and drying speed of the masterbatch and solve the problem of uneven drying in existing technologies.

[0048] The feeding mechanism can feed the masterbatch while simultaneously draining it initially, ensuring that the masterbatch entering the drying drum has a certain degree of dryness.

[0049] By heating the incoming air with the exhaust gas, heat utilization can be effectively improved and energy consumption reduced. Attached Figure Description

[0050] Figure 1 This is a schematic diagram of the structure of the present invention;

[0051] Figure 2 This is a top view of the present invention;

[0052] Figure 3 This is a schematic diagram of the assembly of the disperser and discharge pipe of the present invention;

[0053] Figure 4 for Figure 1 A magnified view of a specific area (A);

[0054] Figure 5 for Figure 1 A magnified view of a portion of B;

[0055] Figure 6 for Figure 1 A view about C.

[0056] Attached reference numerals: 10. Drying cylinder; 11. Upper partition; 12. Lower partition; 13. Sealing base;

[0057] 111. Blanking hole; 112. Second guide cone hole;

[0058] 20. Feeding mechanism; 201. Feeding pipe; 202. Temporary storage bin; 2021. Drain hole; 203. Conveying pipe; 2031. Water outlet trough; 204. Bending pipe; 205. Screw conveyor shaft; 206. Connecting frame; 207. Vacuum pipe; 208. Vacuum pump; 209. Air connector; 210. Reduction gear; 211. Drive gear; 212. Motor; 213. Motor bracket; 215. Second motor; 216. Positioning screw; 217. First roller; 218. Distributing cone sleeve;

[0059] 30. Disperser; 301. Frustum; 302. Cone; 303. Distributor hole; 304. High-pressure, high-temperature gas chamber; 305. Air jet hole; 306. First guide cone hole; 31. First cone; 32. Rubber positioning ring;

[0060] 40. Feed pipe; 401. Vent hole; 41. First heating coil; 42. Second heating coil; 43. Temperature sensor;

[0061] 50. Discharge pipe;

[0062] 60. Waste heat recovery air intake mechanism; 601. High pressure pipe; 602. Air compressor pump; 603. Pump bracket; 604. Isolation pipe; 605. Air outlet branch pipe; 606. Air outlet main pipe; 607. Air inlet pipe; 608. Spiral fins; 609. Air outlet. Detailed Implementation

[0063] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0064] The following is for reference Figures 1 to 6 The present invention will be described as follows:

[0065] A masterbatch drying device includes a drying cylinder 10, the upper end of which is connected to a feeding mechanism 20, the feeding mechanism 20 including a feeding pipe 201 that is inserted and fixed to the top of the drying cylinder 10.

[0066] The drying cylinder 10 is internally fixed with an upper partition 11 and a lower partition 12. A sealing base 13 is fixed above the upper partition 11, and a disperser 30 is fixed on the sealing base 13.

[0067] The disperser 30 includes an integrally formed truncated cone 301 and a cone 302 located above the truncated cone 301. Both the cone 302 and the truncated cone 301 are coaxially arranged with the feed pipe 201, and the cone 302 is located below the feed pipe 201. The outer edge of the truncated cone 301 is formed with a plurality of circumferentially distributed inclined distributing holes 303. The interior of the truncated cone 301 is formed with a high-pressure high-temperature gas chamber 304. Each distributing hole 303 has a plurality of vertically arranged jet holes 305 formed on the side wall near the high-pressure high-temperature gas chamber 304.

[0068] The outer edge of the upper partition 11 is formed with a plurality of circumferentially distributed discharge holes 111. The lower end of each discharge hole 111 is fixedly connected to a discharge tube 40, and the lower end of the discharge tube 40 is inserted into and fixed on the lower partition 12.

[0069] The bottom of the drying cylinder 10 is connected to a discharge pipe 50.

[0070] After cooling and shaping in the upstream section, the masterbatch is conveyed to the drying cylinder through the feeding mechanism and automatically falls to the top of the disperser through the feeding pipe. Through the action of the cone, the masterbatch falling from the feeding pipe is randomly and evenly dispersed in all directions. The masterbatch rolls down along the side wall of the cone and then enters the distribution hole. The high-temperature gas in the high-temperature and high-pressure chamber is ejected from the jet hole, which can cause the masterbatch entering the distribution hole to turn irregularly and reduce the falling speed of the masterbatch, thereby making the masterbatch dry evenly and effectively.

[0071] The dried masterbatch flows out from the lower end of the distribution hole into the upper partition plate, and then is evenly dispersed again through multiple discharge holes into the discharge pipe. It then flows out from the bottom of the discharge pipe to the bottom of the drying cylinder, and finally flows out from the discharge pipe, thus obtaining the dried masterbatch.

[0072] The disperser can randomly disperse the concentrated masterbatch, thus improving the drying effect and efficiency of the masterbatch.

[0073] The feeding mechanism 20 also includes a temporary storage box 202 disposed on one side of the drying cylinder 10. The temporary storage box 202 is fixedly connected to the lower end of the conveying pipe 203, and the upper end of the conveying pipe 203 is fixedly connected to the feeding pipe 201 through a bent pipe 204.

[0074] A screw conveyor shaft 205 is fitted inside the conveying pipe 203. The upper end of the screw conveyor shaft 205 is rotatably connected to a connecting frame 206, which is fixed to the upper end of the conveying pipe 203. A reduction gear 210 is fixed to the upper protruding end of the screw conveyor shaft 205 through the bent pipe 204. The reduction gear 210 meshes with a drive gear 211, which is fixed to a motor 212. The motor 212 is fixedly connected to the bent pipe 204 via a motor bracket 213. The lower protruding end of the screw conveyor shaft 205 is rotatably connected to the bottom of the temporary storage bin 202.

[0075] The lower side wall of the conveying pipe 203 is formed with a water outlet groove 2031; the bottom surface of the temporary storage box 202 is formed with a plurality of drainage holes 2021.

[0076] After the upstream section cools and sets the masterbatch, it automatically enters the temporary storage bin for temporary storage. During the temporary storage process, most of the water carried in the masterbatch can be drained out and automatically flows out of the temporary storage bin through the drain hole. Then, the motor drives the drive gear to rotate, and the drive gear drives the screw conveyor shaft to rotate through the reduction gear. The screw conveyor shaft conveys the masterbatch upward to the bending pipe and the feed pipe. Then, the masterbatch flows out from the feed pipe and enters the drying cylinder.

[0077] During the upward conveying of the masterbatch, the water separated from the masterbatch can be discharged through the water outlet tank.

[0078] The spiral conveyor shaft 205 has a vacuum channel 2051 with an opening on the lower side inside, and a number of radially penetrating water suction holes 2052 are formed on the side wall of the vacuum channel 2051.

[0079] The bottom of the spiral conveyor shaft 205 is connected to a vacuum tube 207 via an air connector 209, and the other end of the vacuum tube 207 is connected to a vacuum pump 208.

[0080] The vacuum tube 207 is designed with both ends higher than the middle, and a drain hole 2071 is formed at the lowest point of the vacuum tube 207.

[0081] The vacuum pump evacuates the vacuum channel through the vacuum tube and air connector, creating a negative pressure inside. Moisture adsorbed on the surface of the masterbatch can be drawn into the vacuum channel through the water absorption hole, thereby further cleaning the moisture on the surface of the masterbatch and minimizing the moisture content of the masterbatch entering the drying cylinder.

[0082] The upper end of the material distribution hole 303 is formed with a first guide cone hole 306, and the minimum distance between the maximum ends of two adjacent first guide cone holes 306 is 1 to 2 mm.

[0083] The upper end of the discharge hole 111 is formed with a second guide cone hole 112, and the minimum distance between the largest ends of two adjacent second guide cone holes 112 is 1 to 2 mm.

[0084] It can effectively prevent the accumulation of color masterbatch and allow the color masterbatch to enter the first guide cone hole and the second guide cone hole in a timely manner.

[0085] Multiple jet holes 305 on the same distribution hole 303 are arranged obliquely, and each jet hole 305 has a different jet angle.

[0086] This allows for thorough drying of the surface of each masterbatch entering the dispensing hole.

[0087] The material discharge pipe 40 is arranged in a multi-stage "S" shape;

[0088] The material discharge pipe 40 is formed with a plurality of ventilation holes 401;

[0089] A first heating coil 41 is provided at the bend of multiple material discharge pipes 40, and the first heating coil 41 is fixed inside the drying cylinder 10;

[0090] A second heating coil 42 and a temperature sensor 43 are fixedly installed inside the high-temperature and high-pressure chamber 304. The second heating coil 42 and the temperature sensor 43 are electrically connected to a controller.

[0091] The first heating coil can heat the feeding tube, so that the inside of the feeding tube has a certain temperature, which allows the masterbatch passing through the feeding tube to undergo the final drying process.

[0092] The "S"-shaped design of the discharge pipe increases the path and time for the masterbatch to flow within the discharge pipe, further improving the final drying effect.

[0093] The high-pressure gas entering the high-temperature, high-pressure chamber can be heated by the second heating coil, thereby ensuring that the gas ejected from the jet nozzle has a certain temperature. The gas temperature in the high-pressure chamber can be detected and adjusted by a temperature sensor and controller.

[0094] The high-temperature and high-pressure chamber 304 is connected to a waste heat utilization air intake mechanism 60.

[0095] The waste heat utilization air intake mechanism 60 includes a high-pressure pipe 601 inserted and fixed on the upper partition 11. The upper end of the high-pressure pipe 601 extends into the high-temperature and high-pressure chamber 304. The other end of the high-pressure pipe 601 is connected to an air compressor pump 602. The air compressor pump 602 is fixed on a pump bracket 603. The pump bracket 603 is fixed in the middle of the isolation pipe 604. The two ends of the isolation pipe 604 are respectively sealed and fixedly connected to the upper partition 11 and the lower partition 12.

[0096] The top of the drying cylinder 10 is connected to a plurality of evenly distributed air outlet branch pipes 605, and the other end of the air outlet branch pipes 605 is connected to the upper end of the vertically arranged air outlet main pipe 606. The two ends of the air outlet main pipe 606 are sealed, and an air inlet pipe 607 is sleeved inside the air outlet main pipe 606. The upper end of the air inlet pipe 607 extends out of the air outlet main pipe 606, and the lower end of the air inlet pipe 607 passes through the lower side wall of the drying cylinder 10 and the lower partition 12 in sequence and extends into the isolation pipe 604.

[0097] Spiral fins 608 are fixed on a section of the outer wall of the air inlet pipe 607 located inside the air outlet pipe 606, and an air outlet 609 is connected to the lower end of the air outlet pipe 606.

[0098] High-temperature gas in the high-temperature and high-pressure chamber is ejected from the jet hole to dry the masterbatch. The high-temperature gas then flows upward and enters the main outlet pipe through multiple outlet branches. The high-temperature gas in the main outlet pipe heats the middle section of the inlet pipe. Room temperature air enters the inlet pipe from the upper end. Because the middle section of the inlet pipe is at a higher temperature, the air entering the pipe is heated and dried, thus giving the gas entering the isolation pipe a certain temperature. The air with a certain stable temperature is then compressed by the air compressor pump and enters the high-temperature and high-pressure chamber.

[0099] By utilizing the waste heat of the exhaust gas, the heat utilization rate can be improved and energy consumption can be reduced.

[0100] The upper end of the truncated cone 301 is inserted and fixed on the first cone 31, which is larger at the top and smaller at the bottom. The upper end of the first cone 31 is fixedly connected to the inner wall of the drying cylinder 10.

[0101] The lower end of the truncated cone 301 is inserted and fixed inside the rubber positioning ring 32, which is inserted inside the drying cylinder 10.

[0102] The first cone can prevent the masterbatch from being ejected from the disperser when dispersing the masterbatch;

[0103] The center position of the disperser can be determined by the rubber positioning ring. Especially during the installation of the disperser, only by ensuring the center position of the disperser can the masterbatch entering from the feed pipe be evenly distributed.

[0104] A feeding cone sleeve 218 with a larger upper part and a smaller lower part is fixed on the inner wall of the lower end of the feed pipe 201.

[0105] Because the masterbatch in the feed pipe enters from one side through the bent pipe, the masterbatch falling in the feed pipe also falls from one side, which makes it impossible for the disperser to disperse evenly. By setting a distribution cone sleeve with a small opening at the lower end of the distribution cone sleeve, the falling masterbatch can be made to fall from the center of the feed pipe as much as possible.

[0106] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications assumed above should also be considered within the scope of protection of the present invention.

Claims

1. A masterbatch drying apparatus, comprising a drying cylinder (10), characterized in that: The upper end of the drying cylinder (10) is connected to a feeding mechanism (20), which includes a feeding pipe (201) that is inserted and fixed to the top of the drying cylinder (10); an upper partition (11) and a lower partition (12) are fixed inside the drying cylinder (10), and a sealing base (13) is fixed above the upper partition (11), and a disperser (30) is fixed on the sealing base (13); the disperser (30) includes an integrally formed truncated cone (301) and a cone (302) located above the truncated cone (301). The cone (302) and the truncated cone (301) are both coaxially arranged with the feeding pipe (201), and the cone (302) is located at the top of the truncated cone (301). Below the feed pipe (201); the outer edge of the truncated cone (301) is formed with a plurality of circumferentially distributed inclined distribution holes (303), the interior of the truncated cone (301) is formed with a high-pressure high-temperature air chamber (304), and each distribution hole (303) has a plurality of vertically arranged jet holes (305) formed on the side wall near the high-pressure high-temperature air chamber (304); the outer edge of the upper partition (11) is formed with a plurality of circumferentially distributed discharge holes (111), the lower end of each discharge hole (111) is fixedly connected to a discharge pipe (40), and the lower end of the discharge pipe (40) is inserted into and fixed on the lower partition (12); the bottom of the drying cylinder (10) is connected to a discharge pipe (50). The screw conveyor shaft (205) of the feeding mechanism (20) has a vacuum channel (2051) with an opening at the bottom inside. Several radially penetrating water suction holes (2052) are formed on the side wall of the vacuum channel (2051). The bottom of the screw conveyor shaft (205) is connected to a vacuum tube (207) through an air connector (209). The other end of the vacuum tube (207) is connected to a vacuum pump (208). The material discharge pipe (40) is arranged in a multi-stage "S" shape; multiple ventilation holes (401) are formed on the material discharge pipe (40); a first heating coil (41) is provided at the bend of the multiple material discharge pipes (40), and the first heating coil (41) is fixed inside the drying cylinder (10); a second heating coil (42) and a temperature sensor (43) are fixed inside the high pressure and high temperature air chamber (304). The high-pressure high-temperature air chamber (304) is connected to a waste heat utilization air intake mechanism (60); the waste heat utilization air intake mechanism (60) includes a high-pressure pipe (601) inserted and fixed on the upper partition plate (11), the upper end of the high-pressure pipe (601) extending into the high-pressure high-temperature air chamber (304), and the other end of the high-pressure pipe (601) connected to an air compressor pump (602); the top of the drying cylinder (10) is connected to multiple evenly distributed air outlet branches (605), and the air outlet branches (605) of the drying cylinder (10) are connected to the top of the drying cylinder (10). The other end is connected to the upper end of the vertically arranged air outlet main pipe (606); an air inlet pipe (607) is sleeved inside the air outlet main pipe (606), the upper end of the air inlet pipe (607) extends out of the air outlet main pipe (606), and the lower end of the air inlet pipe (607) passes through the lower side wall of the drying cylinder (10) and the lower partition (12) in sequence and extends into the isolation pipe (604); a spiral fin (608) is fixed on the outer wall of the section of the air inlet pipe (607) inside the air outlet main pipe (606).

2. The masterbatch drying device according to claim 1, characterized in that: The feeding mechanism (20) also includes a temporary storage box (202) disposed on one side of the drying cylinder (10). The temporary storage box (202) is fixedly connected to the lower end of the conveying pipe (203), and the upper end of the conveying pipe (203) is fixedly connected to the feeding pipe (201) through a bent pipe (204). The conveying pipe (203) is fitted with a screw conveying shaft (205) that cooperates with it. The upper end of the screw conveying shaft (205) is rotatably connected to the connecting frame (206), and the connecting frame (206) is fixed to the upper end of the conveying pipe (203). The upper end of the screw conveying shaft (205) that passes through the bent pipe (204) is fixed with a reduction gear (210). The reduction gear (210) meshes with a drive gear (211). The drive gear (211) is fixed to the motor (212). The motor (212) is fixedly connected to the bent pipe (204) through the motor bracket (213). The lower end of the screw conveying shaft (205) that passes through the conveying pipe (203) is rotatably connected to the bottom of the temporary storage box (202). The lower side wall of the conveying pipe (203) is formed with a water outlet groove (2031); the bottom surface of the temporary storage box (202) is formed with a plurality of water drop holes (2021).

3. A masterbatch drying device according to claim 1, characterized in that: The upper end of the material distribution hole (303) is formed with a first guide cone hole (306), and the minimum distance between the maximum ends of two adjacent first guide cone holes (306) is 1 to 2 mm; The upper end of the material drop hole (111) is formed with a second guide cone hole (112), and the minimum distance between the maximum ends of two adjacent second guide cone holes (112) is 1 to 2 mm.

4. The masterbatch drying device according to claim 1, characterized in that: Multiple air jets (305) on the same distribution hole (303) are arranged obliquely, and each air jet (305) has a different spray angle.

5. The color masterbatch drying device according to claim 1, characterized in that: The upper end of the truncated cone (301) is inserted and fixed on the first cone (31) which is larger at the top and smaller at the bottom. The upper end of the first cone (31) is fixedly connected to the inner wall of the drying cylinder (10). The lower end of the truncated cone (301) is inserted and fixed inside the rubber positioning ring (32), which is inserted inside the drying cylinder (10).

6. The masterbatch drying device according to claim 2, characterized in that: A feeding cone sleeve (218) with a larger upper part and a smaller lower part is fixed on the inner wall of the lower end of the feed pipe (201).

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