Rotary spiral waste organic glass propelling and continuous splitting decomposition method and device

Abstract

The invention relates to a rotary spiral waste organic glass propelling and continuous splitting decomposition method and device and belongs to the field of chemical engineering. The raw material splitting decomposition efficiency and product recovery rate can be improved, and energy consumption and pollutant discharge can be reduced. The device comprises a feeding device, a splitting decomposition device, a condensing device and a waste gas treatment device which are sequentially connected, and further comprises a pressure limiting valve, a residue discharging pipe, a star-shaped valve, a feeding port, guide blades and a discharging port, wherein the pressure limiting valve is used for controlling pressure intensity in a splitting decomposition kettle. The feeding port is movably connected with a feeding pipe. The guide blades are fixedly arranged in the splitting decomposition kettle, and materials are spirally propelled from the feeding port to the discharging port. A hearth is provided with a thermometer. The discharging port is movably connected with the residue discharging pipe, and the residue discharging pipe is connected with the star-shaped valve. The condensing device is connected with the splitting decomposition device through a guide pipe, the guide pipe penetrates through the residue discharging pipe to extend into the discharging port, the guide pipe, a water-cooling device, a storage tank and a copious cooling device are connected in sequence, and the storage tank is arranged at the lower end of the water-cooling device and the lower end of the copious cooling device. The waste gas treatment device is connected with the copious cooling device.

Description

technical field [0001] The invention relates to a rotary-screw propulsion continuous cracking method and equipment for waste organic glass, specifically refers to the preparation of methyl methacrylate by using waste organic glass as a raw material, and belongs to the field of chemical industry. Background technique [0002] Pyrolysis technology is one of the important means to recover and reuse various resources in the chemical industry, and cracking kettles are often used for cracking and recycling. [0003] The waste and old plexiglass recycling enterprises in the prior art are generally small in scale, too scattered in layout, backward in production technology, extremely simple in equipment and technology, primitive and extensive in management, low in overall efficiency, and there are many exports of volatile organic pollutants, resulting in waste gas It is discharged arbitrarily without treatment, and the pollution level is high and the scope is large. Waste organic gl...

AI Technical Summary

Problems solved by technology

For example, the Chinese patent application number "201010121977.0" discloses a "continuous pyrolysis device for waste plexiglass". The material pipeline and the safety pipeline realize the split condensation and liquefaction of the high-pressure gas in the cracking furnace, so that the cracking device can achieve continuous cracking. However, this technical solution must Through the safety pipeline, the gas after the first condensation treatment is recycled and condensed again. The structure is relatively complicated, and during the operation of the equipment, if the fire damper is damaged, it is very easy to cause a safety accident.

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