Wax removing and ash removing apparatus of plastic cracking oil production and cracking system thereof

Abstract

The invention discloses a de-waxing and ash-removing device for plastic cracking oil production and a cracking system thereof, wherein the ash-removing device comprises an ash sedimentation tank, an ash valve, a wax guiding pipe and a de-waxing valve, wherein the top of the ash sedimentation tank is connected with a de-waxing tower, the bottom of the ash sedimentation tank is provided with an ash-removing pipe, the tank body of the ash sedimentation tank is connected with the wax guiding pipe, and the ash-removing pipe of the ash sedimentation tank is connected with an ash collecting tank; the ash valve is arranged between the ash sedimentation tank and the ash collecting tank; the wax guiding pipe consists of a plurality of pipe fittings, one end of the wax guiding pipe is connected witha wax guiding port, while the other end is connected to a cracker, wherein one section of the wax guiding pipe is a reflux pipe, the front section and rear section of the two ends of the reflux pipe are jointed through a flanged fitting, and the reflux pipe can be provided with pipe fittings with different lengths according to the requirement of wax reflux quantity; and the de-waxing valve is arranged at an outlet of the other end of the wax guiding pipe.

Description

technical field [0001] The invention relates to a wax removal and ash removal device used for plastic cracking to produce oil, especially to a device that simultaneously solves the blockage of pipeline facilities due to ash generated during the liquefaction and cracking of waste plastics and the inability of the primary wax to automatically and stably reflow and crack again Quantitative wax removal and ash removal device. Background technique [0002] When waste polyethylene plastic (PE) is thermally cracked and liquefied to recover fuel oil energy, a large amount of wax is likely to be produced. Although the existing technology proposes to intercept and separate the wax produced by primary cracking and return it to the cracker in real time for further cracking, so that the product contains only fuel oil. Compared with gas, it has the advantages of saving energy and simplifying the handling procedures. However, when the processing system is enlarged to a processing system o...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to propose a wax removal and ash removal device for plastic cracking and oil production and its cracking system, which can simultaneously solve the problem of blockage of pipeline facilities due to ash generated during waste plastic liquefaction and cracking, and primary The phenomenon that the wax cannot be automatically and stably refluxed to re-crack the amount, so that the load in the cracking zone is stable, the wax removal effect is stable, the oil production quality is stable, and the cracking system can continue to operate stably without failure

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