Production equipment for graphite paper

Abstract

The invention discloses production equipment for graphite paper, and belongs to the technical field of graphite paper preparation. The production equipment comprises a graphite expansion furnace, a desulphurizing device and a pressing device which are successively connected with one another. The interior of a furnace body of the graphite expansion furnace is provided with a graphite circulation pipeline made of a metal material, the outer surface of the graphite circulation pipeline is covered with a thermal insulating layer, and the periphery of the thermal insulating layer is provided with an inductance element. The pressing device comprises a rack, a plurality of driving rollers driven by a power device and driven rollers are designed on the rack, a paper feeding gap is arranged between each of the driving rollers and each of the driven rollers, the rack is provided with a sensor between each two adjacent driving rollers, the sensors are used for detecting tension degree of the graphite paper and are each electrically connected with an electronic control unit, and the electronic control unit is electrically connected with the power device. The production equipment allows the sulfur content of the graphite paper to be effectively controlled, and enables the graphite paper to have same thickness.

Description

technical field [0001] The invention belongs to the technical field of graphite paper preparation, in particular to a production equipment of graphite paper. Background technique [0002] Graphite paper is widely used in the dynamic and static sealing of machines, pipes, pumps, and valves in industries such as electric power, petroleum, chemical industry, instrumentation, and machinery. It is an ideal new sealing material to replace traditional seals such as rubber, fluoroplastics, and asbestos. [0003] During the preparation process of graphite paper, high-carbon graphite flakes need to be expanded. At present, the existing graphite expansion furnaces in China use liquefied petroleum gas or diesel as fuel to heat the graphite expansion furnace cavity to about 900°C, and then use wind force to feed the expandable graphite raw materials. The expandable graphite flakes at high temperatures The acid radical ions between them will be violently gasified, and the expansion force...

AI Technical Summary

Problems solved by technology

[0004] However, when liquefied petroleum gas or diesel oil is used as fuel, in the process of heating the cavity of graphite expansion furnace, fuel combustion produces a large amount of sulfur-containing gas attached to graphite worms, resulting in a significant increase in the sulfur content in graphite worms. The content cannot be effectively controlled. If the sulfur content is too high, the performance of the graphite paper will not meet the standard, which will seriously affect the yield of the graphite paper; and the speed of the roll is manually adjusted. During the production process, the speed needs to be adjusted repeatedly, and the graphite paper is prone to breakage. Moreover, it is difficult to ensure that the thickness of graphite paper is consistent, resulting in unstable production and low yield, which seriously affects normal production

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