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CN-224221144-U - Compound reagent homogenizing device for production of water tree resistant medium-pressure crosslinked polyethylene insulating material

CN224221144UCN 224221144 UCN224221144 UCN 224221144UCN-224221144-U

Abstract

The utility model belongs to the technical field of application of polyethylene insulating materials, and particularly discloses a compound reagent homogenizing device for production of water tree resistant medium-pressure crosslinked polyethylene insulating materials, which comprises a circular shell, a vertical supporting leg, a shell cover, a discharge hole with a valve, a feed inlet, a feed pipe, a support frame, a shell cover through hole, a bearing seat, a motor, a shaft coupling, a stirring shaft, a plurality of stirring teeth, a shaft sleeve and an upper sealing ring, wherein the stirring teeth are arranged on the circular shell; wherein, the length dimension of a plurality of stirring teeth is vertically provided with different lengths at intervals. The homogenizing device for the compound reagent for producing the water tree resistant medium pressure crosslinked polyethylene insulating material has the beneficial effects that 1, the homogenizing device is used for replacing manual stirring, improves the mixing efficiency and the mixing homogenization balance of the compound reagent constituent materials, further improves the product quality, 2, the homogenizing device is convenient to clean, ensures the working efficiency, can detect the homogeneous concentration of the compound reagent constituent materials, is convenient to monitor, does not need to additionally detect the concentration again, and improves the working efficiency.

Inventors

  • SHEN QINMEI
  • MU JUAN
  • SUN AN

Assignees

  • 江苏威达电缆有限公司
  • 无锡工艺职业技术学院

Dates

Publication Date
20260512
Application Date
20250401

Claims (5)

  1. 1. The homogenizing device for the compound reagent in the production of the water tree resistant medium-pressure crosslinked polyethylene insulating material comprises a circular shell (100) Vertical supporting leg (101) and cap (102), its characterized in that: the outer wall of the bottom of the circular shell (100) is provided with a discharge hole (103) with a valve, A feed inlet (104) is arranged in the side wall of the upper part of the circular shell (100), The outer wall of the upper part of the circular shell (100) is provided with a feeding pipe (105) which is matched with the feeding hole (104) for use, A supporting frame (107) is arranged on the shell cover (102), A shell cover through hole (106) is arranged in the shell cover (102) and below the supporting frame (107), The housing cover (102) is provided with a bearing seat (110) on the surface of the housing cover through hole (106), A motor (108) is arranged on the supporting frame (107), A coupler (109) is arranged on the motor (108), A stirring shaft (111) penetrating through the shell cover through hole (106) and connected with the shaft coupling (109) is arranged in the circular shell (100), A plurality of stirring teeth (112) are arranged on the stirring shaft (111), A shaft sleeve (113) and an upper sealing ring (114) which are matched with the stirring shaft (111) for use are arranged in the shell cover through hole (106); wherein, the length dimension of the plurality of stirring teeth (112) is vertically and alternately provided with different lengths.
  2. 2. The device for homogenizing the compound reagent for producing the water tree resistant medium pressure crosslinked polyethylene insulating material according to claim 1, wherein the device for homogenizing the compound reagent for producing the water tree resistant medium pressure crosslinked polyethylene insulating material further comprises a vertical window (115) arranged in the outer wall of the circular shell (100), a plurality of fixing screw grooves (117) arranged in the upper end face of the circular shell (100), a plurality of shell cover screw holes (116) arranged in the outer layer of the shell cover (102), and bolts (118) for fixedly assembling the shell cover (102) and the circular shell (100) through the shell cover screw holes (116) and the fixing screw grooves (117).
  3. 3. The device for homogenizing a compound reagent for producing the water tree resistant medium pressure crosslinked polyethylene insulating material according to claim 1 or 2, further comprising a circular discharging shell (121) connected with the discharging hole (103) with a valve, a filter screen (122) arranged in the circular discharging shell (121), a hollow external thread plug (123) arranged in one end of the circular discharging shell (121), a valve guide pipe (124) arranged on one surface of the hollow external thread plug (123), and a lower sealing ring (125) arranged on the hollow external thread plug (123) and matched with the inner wall of the circular discharging shell (121).
  4. 4. The device for homogenizing the compound reagent for producing the water tree resistant medium pressure crosslinked polyethylene insulating material according to claim 3, further comprising a back flush valved water inlet pipe (127) and a back flush valved water outlet pipe (126) which are arranged on the outer walls of the two ends of the circular discharging shell (121).
  5. 5. The device for homogenizing a compound reagent for producing the water tree resistant medium pressure crosslinked polyethylene insulating material according to claim 4, further comprising a sensor mounting groove (119) arranged on one side of the outer wall of the bottom of the circular shell (100), and a concentration monitor (120) arranged at the bottom of the circular shell (100) through the sensor mounting groove (119).

Description

Compound reagent homogenizing device for production of water tree resistant medium-pressure crosslinked polyethylene insulating material Technical Field The utility model belongs to the technical field of application of polyethylene insulating materials, and particularly relates to a homogenizing device for a compound reagent for production of a water tree resistant medium-pressure crosslinked polyethylene insulating material. Background Research shows that after the medium-high voltage power cable runs for 8-12 years, a large amount of water tree grows on the insulating layer. The growth of the water tree is one of the main problems of restricting the safety and the service life of the crosslinked polyethylene power cable, and affects the operation safety of the power grid. Successful research and development of the water tree resistant crosslinked cable has important significance for reducing the occurrence of the water tree phenomenon of the cable and prolonging the service life of the cable. At present, the water tree resistant insulating material is used for replacing the common insulating material and is gradually popularized to the field of medium-high voltage insulation. The water tree resistant medium pressure cross-linked polyethylene insulating material is cross-linked polyethylene insulating material containing additive, polymer modifier or stuffing capable of retarding the development and growth of water tree in insulation. The compound reagent is an indispensable component of a water tree resistant medium-pressure crosslinked polyethylene insulating material, and generally comprises a sorbitol acetal nucleating agent, an ethylene-vinyl acetate modified polymer, a metallocene polymer, an antioxidant, a crosslinking agent and the like, wherein the components are required to be mixed homogeneously in the production process, and the components are fed into a reciprocating single-screw extruder and a single-screw extruder to treat low-density polyethylene. At present, the traditional compound reagent is prepared by adopting a manual stirring mode after being blended, the time consumption is long, the operation efficiency is low, and in addition, the phenomenon of unbalance of the mixing homogenization exists, so that the quality and the production efficiency of the produced water tree resistant medium-pressure crosslinked polyethylene insulating material are extremely influenced. Therefore, based on the problems, the utility model provides a homogenizing device for the compound reagent in the production of the water tree resistant medium-pressure crosslinked polyethylene insulating material. Disclosure of utility model The utility model aims to provide a homogenizing device for a compound reagent in production of water tree resistant medium-pressure crosslinked polyethylene insulating materials, which solves the problem of mixing and homogenizing the compound reagent in the prior art. According to the technical scheme, the water tree resistant medium pressure crosslinked polyethylene insulating material production compound reagent homogenizing device comprises a circular shell, vertical supporting legs and a shell cover, wherein a valve discharge port is formed in the outer wall of the bottom of the circular shell, a feed inlet is formed in the side wall of the upper portion of the circular shell, a feed pipe matched with the feed inlet is arranged in the outer wall of the upper portion of the circular shell, a supporting frame is arranged on the shell cover, a shell cover through hole is formed in the shell cover and below the supporting frame, a bearing seat is arranged on the surface of the shell cover through hole, a motor is arranged on the supporting frame, a shaft coupler is arranged on the motor, a stirring shaft penetrating through the shell cover through hole and connected with the bearing seat and the shaft coupler is arranged in the circular shell, a plurality of stirring teeth are arranged on the stirring shaft, a shaft sleeve and an upper sealing ring matched with the stirring shaft are arranged in the through hole, and the length of the plurality of stirring teeth are vertically arranged at intervals. According to the technical scheme, the water tree resistant medium-pressure crosslinked polyethylene insulating material production compound reagent homogenizing device further comprises a vertical window arranged in the outer wall of the circular shell, a plurality of fixing screw grooves arranged in the end face of the upper portion of the circular shell, a plurality of shell cover screw holes arranged in the outer layer of the shell cover, and bolts for fixedly assembling the shell cover and the circular shell through the shell cover screw holes and the fixing screw grooves. According to the technical scheme, the water tree resistant medium-pressure crosslinked polyethylene insulating material production compound reagent homogenizing device further comprises a round discharging shell