Medium-high voltage cable liquid graphite coating system

Abstract

The invention discloses a medium-high voltage cable liquid graphite coating system which includes a liquid graphite extrusion device. A radial coating device and an axial coating device are sequentially arranged downstream of the liquid graphite extrusion device, a line passing port is formed in the lower part of the liquid graphite extrusion device, and a discharge port in the liquid graphite extrusion device is aligned with the line passing port. The radial coating device includes a rotating seat, the two ends of the rotating seat are connected with a plurality of sponge wheels through chucks, and first line passing holes are formed between the sponge wheels. The axial coating device includes a sponge cylinder, an axial coating sponge is arranged on the inner surface of the sponge cylinder, the middle of the sponge cylinder is a second line passing hole, and a line inlet, the first line passing holes and the second line passing hole are located on the same axis. The fluidity of the liquid graphite is improved through the liquid graphite extrusion device, and secondly, through the coating in the axial and radial directions, the cable graphite coating uniformity is ensured.

Description

technical field [0001] The invention relates to the field of cable production, in particular to a liquid graphite coating system for medium and high voltage cables. Background technique [0002] The outer sheath of medium and high voltage cables needs to be coated with graphite during the production process. The traditional coating device uses carbon black powder, and then the outer sheath passes through the cooling water tank, and the remaining water on the outer sheath surface is used to cause carbon black agglomeration. Phenomenon, using this method to coat graphite on the outer surface of the cable sheath, the effect is very poor, and the coating is uneven. Later, with the development of new material technology, liquid graphite was used to replace traditional graphite powder. Liquid graphite contains adhesive, which can be better bonded to the surface of the cable. However, due to the characteristics of large consistency and poor fluidity of liquid graphite, the use of ...

AI Technical Summary

Problems solved by technology

However, due to the characteristics of large consistency and poor fluidity of liquid graphite, the use of liquid graphite to coat the outer surface of the cable sheath still has the problem of uneven coating

In order to solve this problem, when coating liquid graphite, it is usually applied manually while stirring. Although the problem of uneven coating can be appropriately improved, the effect is still not ideal, and the efficiency of manual stirring is low, which makes the coating process low efficiency

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