Waste plastic oil recycling feed pyrolysis control system

Abstract

A waste plastic oil recycling feed pyrolysis control system includes at least: a controller; a feeder that feeds waste plastic into the pyrolysis chamber of a pyrolysis furnace, where a set of pyrolysis heaters on the outer surface of the furnace wall heats and pyrolyzes the plastic to generate oil fumes which are then discharged from an exhaust port; a rangefinder's detection head detects the height of the accumulated waste plastic by measuring the distance and feeds it back to the controller, thereby controlling the maintenance of a space above the pyrolysis chamber; the overall system, in addition to ensuring that the feeder smoothly feeds the waste plastic into the pyrolysis chamber, also ensures that the space maintained in the pyrolysis chamber is sufficient for the waste plastic to undergo pyrolysis to generate oil fumes, and also stably maintains the normal performance and efficiency of the waste plastic pyrolysis reaction.

Claims

1. A feed pyrolysis control system for waste plastic oil recycling, wherein waste plastic is fed into a feed pyrolysis control system to generate pyrolysis fumes, and then the pyrolysis fumes are processed through an oil recovery system to produce fuel oil and gas for recovery; the feed pyrolysis control system includes at least: A controller, powered by a power supply; a feeder, electrically connected to the controller, with a receiving port at one end to receive the waste plastic, controlled by the controller to feed the waste plastic to a feeding port at the other end; a pyrolysis furnace, having a pyrolysis chamber inside, with a set of pyrolysis heaters on the outer surface of the metal furnace wall; a feed inlet and a flue gas outlet above the pyrolysis chamber, and a slag outlet below; the feed inlet is connected to the feeding port of the feeder, allowing the waste plastic fed from the feeder to flow through the feeder. The material falls into the pyrolysis chamber; the pyrolysis heater is electrically connected to the controller, and the furnace wall is controlled by the controller to operate the pyrolysis heater to generate heat, which heats the waste plastic in the pyrolysis chamber to produce fumes, which are discharged from the exhaust port; a rangefinder is installed on the pyrolysis furnace and electrically connected to the controller, and has a detection head that enters the pyrolysis chamber and can emit detection signals into the pyrolysis chamber to detect the distance of obstacles. It is used to feed back the detection distance from the height of the accumulated waste plastic in the pyrolysis chamber to the controller, and the controller then controls the operation. The controller outputs a control signal to the feeder to control its start-up or stop. A mixer, located above the pyrolysis furnace, has a stirring motor electrically connected to the controller, and an agitator driven by the stirring motor and extending into the pyrolysis chamber to stir the waste plastic within it. A heavy component capture and separator, located at the exhaust outlet of the pyrolysis chamber, captures and separates the oil fumes emitted from the exhaust outlet into pyrolysis oil fumes and incompletely pyrolyzed oil fumes, and separates the pyrolysis oil fumes... The system connects to the oil recovery system and reheats the incompletely cracked oil fumes back into the cracking chamber for further cracking. A slag discharge device is located at the slag discharge outlet of the cracking chamber and includes a slag discharge valve and a slag discharge machine. The slag discharge valve is electrically connected to the controller and is used to control the opening or closing of the slag discharge outlet. The slag discharge machine is electrically connected to the controller and is used to collect the residue discharged from the slag discharge outlet when it is open. The slag discharge machine is controlled by the controller to send the residue to a residue collection bin for centralized processing.

2. The feed pyrolysis control system for waste plastic oil recycling as described in claim 1, wherein, The feeding pyrolysis control system also includes a feeding pusher and a heating tank. The feeding pusher is electrically connected to the controller. It has a feed port at a low end and an overflow port at a high end. It can be controlled by the controller to push the virgin waste plastic material from the low end to the high end when it enters the feed port, and the material overflows from the overflow port. The heating tank is a material heating space formed inside a metal tank body. A set of feeding heaters is provided on the outer surface of the tank body and electrically connected to the controller. The inlet end of the material heating space is connected to the overflow port of the feeding pusher, and the outlet end is connected to a guide pipe connected to the receiving port of the feeding machine. The heating tank can receive the virgin waste plastic material overflowing from the overflow port at the inlet end and enter the material heating space. The waste plastic material is heated to a preheated state by the set of feeding heaters and then discharged from the guide pipe to the feeding machine.

3. The feed pyrolysis control system for waste plastic oil recycling as described in claim 2, wherein, The set of incoming material heaters on the outer surface of the barrel wall of the heating barrel is a set of electric heaters. A thermally conductive insulating layer is provided on the outer surface of the heat transfer metal barrel wall, and an electric heating wire is spirally wound on the surface of the thermally conductive insulating layer.

4. The feed pyrolysis control system for waste plastic oil recycling as described in claim 2, wherein, The incoming material heater on the outer surface of the heating barrel is a set of vortex heaters. A high-temperature resistant insulating coating is provided on the outer surface of the barrel wall of the magnetic metal, and a high-frequency wire is spirally wound on the surface of the insulating coating.

5. The feed pyrolysis control system for waste plastic oil recycling as described in claim 2, wherein, A mixing machine is installed above the heating tank and is electrically connected to the controller. The mixing machine has a mixing element that extends into the material heating space.

6. The feed pyrolysis control system for waste plastic oil recycling as described in claim 2, wherein, The heating tank is equipped with a preheating temperature detector that is electrically connected to the controller. The preheating temperature detector has a temperature sensing end that extends into the heating space of the material.

7. The feed pyrolysis control system for waste plastic oil recycling as described in claim 2, wherein, The heating tank is equipped with a discharge control valve on the feed pipe.

8. The feed pyrolysis control system for waste plastic oil recycling as described in claim 1, wherein, The mixer's stirring motor is connected to a current sensor, which is electrically connected to a power output terminal of the power supply. The current sensor is also electrically connected to a signal input terminal of the controller, feeding back the current consumption value of the stirring motor to the controller.

9. The feed pyrolysis control system for waste plastic oil recycling as described in claim 1, wherein, The feed pyrolysis control system also includes a nitrogen generator, the nitrogen output of which is connected to the pyrolysis chamber.

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