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CN-117162322-B - Masterbatch drying device

CN117162322BCN 117162322 BCN117162322 BCN 117162322BCN-117162322-B

Abstract

The invention relates to the technical field of color master batch production, and discloses a color master batch drying device which comprises a drying cylinder, wherein the upper end of the drying cylinder is connected with a feeding mechanism, an upper partition plate and a lower partition plate are fixed in the drying cylinder, a sealing base is fixed above the upper partition plate, a disperser is fixed on the sealing base, the disperser comprises a cone frustum and a cone, a plurality of circumferentially uniformly distributed inclined material distributing holes are formed in the outer edge of the cone frustum, a high-pressure high-temperature air cavity is formed in the cone frustum, a plurality of air holes which are arranged up and down are formed in one side wall of each material distributing hole close to the high-pressure high-temperature air cavity, and a plurality of blanking pipes are arranged between the upper partition plate and the lower partition plate. The color master batch in the drying cylinder can be randomly and uniformly distributed into the plurality of distributing holes through the disperser, the color master batch in the distributing holes can be randomly rotated through high-pressure high-temperature gas, the drying effect and the drying speed of the color master batch can be effectively improved, and the problem of non-uniform drying of the color master batch in the drying furnace in the prior art is solved.

Inventors

  • FAN HONGBO

Assignees

  • 浙江易桂塑胶有限公司

Dates

Publication Date
20260508
Application Date
20230816

Claims (6)

  1. 1. A masterbatch drying device comprises a drying cylinder (10), and is characterized in that the upper end of the drying cylinder (10) is connected with a feeding mechanism (20), the feeding mechanism (20) comprises a feeding pipe (201) which is inserted into and fixed at the top of the drying cylinder (10), an upper partition plate (11) and a lower partition plate (12) are fixed inside the drying cylinder (10), a sealing base (13) is fixed above the upper partition plate (11), a disperser (30) is fixed on the sealing base (13), the disperser (30) comprises an integrally formed conical table (301) and a cone (302) which is arranged above the conical table (301), the cone (302) and the conical table (301) are coaxially arranged with the feeding pipe (201), a plurality of circumferentially uniformly distributed distributing holes (303) are formed at the outer edge of the conical table (301), a high-temperature high-pressure air cavity (304) is formed inside the conical table (301), a plurality of air-ejecting holes (111) are formed at the outer edge of the conical table (301) and are uniformly distributed at the upper end of the upper partition plate (40) and the lower partition plate (111) are connected with the lower air cavity (40), the lower end of the blanking pipe (40) is inserted and fixed on the lower partition plate (12), and the bottom of the drying cylinder (10) is connected with a discharging pipe (50); a vacuum pumping channel (2051) with an opening at the lower side is formed in the spiral conveying shaft (205) of the feeding mechanism (20), a plurality of water absorbing holes (2052) penetrating radially are formed in the side wall of the vacuum pumping channel (2051), a vacuum pumping pipe (207) is connected to the bottom of the spiral conveying shaft (205) through an air joint (209), and a vacuum pump (208) is connected to the other end of the vacuum pumping pipe (207); The drying device comprises a drying cylinder body (10), a plurality of blanking pipes (40), a plurality of air holes (401), a plurality of first heating coils (41), a second heating coil (42) and a temperature sensor (43), wherein the blanking pipes (40) are arranged in a multi-stage S-shaped mode, the plurality of air holes (401) are formed in the blanking pipes (40), the first heating coils (41) are arranged at the bending positions of the plurality of blanking pipes (40), the first heating coils (41) are fixed in the drying cylinder body (10), and the second heating coils (42) and the temperature sensor (43) are fixedly arranged in the high-pressure high-temperature air cavity (304); The high-pressure high-temperature air cavity (304) is connected with a waste heat utilization air inlet mechanism (60), the waste heat utilization air inlet mechanism (60) comprises a high-pressure pipe (601) which is sleeved and fixed on an upper partition plate (11), the upper end of the high-pressure pipe (601) stretches into the high-pressure high-temperature air cavity (304), the other end of the high-pressure pipe (601) is connected with an air compression pump (602), the top of the drying cylinder (10) is connected with a plurality of uniformly distributed air outlet branch pipes (605), the other end of each air outlet branch pipe (605) is connected with the upper end of a vertically arranged air outlet main pipe (606), an air inlet pipe (607) is sleeved in the air outlet main pipe (606), the upper end of the air inlet pipe (607) stretches out of the air outlet main pipe (606), the lower end of the air inlet pipe (607) sequentially penetrates through the side wall of the lower end of the drying cylinder (10) and the lower partition plate (12) to stretch into an isolation pipe (604), and a spiral fin (608) is fixed on one section of the outer wall of the air inlet pipe (607) in the main pipe (606).
  2. 2. The masterbatch drying device according to claim 1, wherein the feeding mechanism (20) further comprises a temporary storage box (202) arranged at one side of the drying cylinder (10), the temporary storage box (202) is fixedly connected with the lower end of a conveying pipe (203), and the upper end of the conveying pipe (203) is fixedly connected with the feeding pipe (201) through a bent pipe (204); The conveying pipe (203) is sleeved with a spiral conveying shaft (205) matched with the conveying pipe, the upper end of the spiral conveying shaft (205) is rotationally connected to a connecting frame (206), the connecting frame (206) is fixed at the upper end of the conveying pipe (203), a reduction gear (210) is fixed at the upper extending end of the spiral conveying shaft (205) penetrating through a bent pipe (204), a driving gear (211) is meshed with the reduction gear (210), the driving gear (211) is fixed on a motor (212), the motor (212) is fixedly connected with the bent pipe (204) through a motor bracket (213), and the spiral conveying shaft (205) is rotationally connected to the bottom of a temporary storage box (202) through the lower extending end of the conveying pipe (203); A water outlet groove (2031) is formed on the lower side wall of the conveying pipe (203), and a plurality of water falling holes (2021) are formed on the bottom surface of the temporary storage box (202).
  3. 3. The masterbatch drying device according to claim 1, wherein the upper end of the material distributing hole (303) is formed with a first guiding taper hole (306), and the minimum distance between the largest ends of two adjacent first guiding taper holes (306) is 1-2 mm; The upper end of the blanking hole (111) is provided with second guide taper holes (112), and the minimum distance between the largest ends of two adjacent second guide taper holes (112) is 1-2 mm.
  4. 4. The masterbatch drying device according to claim 1, characterized in that a plurality of air injection holes (305) on the same material distribution hole (303) are obliquely arranged and the injection angle of each air injection hole (305) is different.
  5. 5. The masterbatch drying device according to claim 1, wherein the upper end of the cone table (301) is inserted and fixed on a first cone (31) which is arranged in a big-end-up manner, and the upper end of the first cone (31) is fixedly connected with the inner wall of the drying cylinder (10); the lower end of the cone table (301) is inserted and fixed in the rubber positioning ring (32), and the rubber positioning ring (32) is inserted and sleeved in the drying cylinder (10).
  6. 6. The masterbatch drying device according to claim 2, wherein a material separating cone sleeve (218) which is arranged in a big-end-up manner is fixed on the inner wall of the lower end of the feeding pipe (201).

Description

Masterbatch drying device Technical Field The invention relates to the technical field of masterbatch production, in particular to a masterbatch drying device. Background The color master batch is a plastic colorant which is prepared by well dispersing a high proportion of pigment or additive and thermoplastic resin, the selected resin has good wetting and dispersing effects on the colorant and good compatibility with the material to be colored, and the color master batch coloring is the most commonly adopted plastic coloring method nowadays. The color master batch is a new coloring product of plastics and fibers developed in the 60 th century, and is a polymer compound prepared by uniformly loading a pigment into resin in an excessive amount. In the conventional color master batch, the surface of the color master batch has more water in order to cool and shape the color master batch rapidly during production. When the moisture content is more, the color master batch is easy to bond, is unfavorable for transportation and storage, and is easy to influence the service effect and the service life of the color master batch, and the traditional method is to dry the color master batch in a drying furnace. Disclosure of Invention The invention aims to provide a masterbatch drying device, which can randomly and uniformly distribute masterbatch entering a drying cylinder body into a plurality of distributing holes through a disperser, and can randomly rotate the masterbatch entering the distributing holes through high-pressure high-temperature gas, so that the drying effect and the drying speed of the masterbatch can be effectively improved, and the problem of uneven drying through a drying furnace in the prior art is solved. The technical aim of the invention is realized by the following technical scheme: The masterbatch drying device comprises a drying cylinder, wherein the upper end of the drying cylinder is connected with a feeding mechanism, and the feeding mechanism comprises a feeding pipe which is inserted into and fixed at the top of the drying cylinder; An upper partition plate and a lower partition plate are fixed in the drying cylinder, a sealing base is fixed above the upper partition plate, and a disperser is fixed on the sealing base; the disperser comprises an integrally formed cone table and a cone body positioned above the cone table, wherein the cone body and the cone table are coaxially arranged with the feeding pipe, and the cone body is positioned below the feeding pipe; The outer edge of the upper partition plate is provided with a plurality of blanking holes uniformly distributed on the circumference, the lower end of each blanking hole is fixedly connected with a blanking pipe, and the lower end of each blanking pipe is inserted and sleeved on and fixed on the lower partition plate; The bottom of the drying cylinder body is connected with a discharging pipe. According to the technical scheme, the color master batch after cooling and shaping at the upstream section is conveyed to the drying cylinder body through the feeding mechanism and automatically falls down to the top of the disperser through the feeding pipe, the color master batch falling from the feeding pipe is randomly and uniformly dispersed in all directions through the action of the cone, the color master batch rolls down along the side wall of the cone and then enters the distributing hole, high-temperature gas in the high-temperature high-pressure cavity is sprayed out from the air spraying hole, so that the color master batch entering the distributing hole is randomly turned over, the falling speed of the color master batch is reduced, and the color master batch is uniformly and effectively dried; The dried color master batch flows out from the lower end of the material distribution hole and enters the upper partition plate, then uniformly disperses again through the plurality of blanking holes and enters the blanking pipe, then flows out from the bottom of the blanking pipe to the bottom of the drying cylinder, and finally flows out from the discharging pipe, so that the dried color master batch is obtained; the concentrated entering color master batch can be randomly dispersed and dried through the disperser, so that the drying effect and the drying efficiency of the color master batch can be effectively improved. The feeding mechanism further comprises a temporary storage box arranged at one side of the drying cylinder, wherein the temporary storage box is fixedly connected with the lower end of the conveying pipe, and the upper end of the conveying pipe is fixedly connected with the feeding pipe through a bent pipe; The conveying pipe is sleeved with a spiral conveying shaft matched with the conveying pipe, the upper end of the spiral conveying shaft is rotatably connected to a connecting frame, and the connecting frame is fixed at the upper end of the conveying pipe; the spiral conveying shaft penetrates through the upper