[0032] Example 1
[0033] Such as figure 1 As shown, a system for deep resource utilization of municipal solid waste in this embodiment includes a waste sorting system and a resource utilization system;
[0034] Wherein, the garbage sorting system includes a garbage shredding system and a magnetic separation system connected in sequence, and the magnetic separation system is respectively connected with a metal recycling system, an inorganic recycling system, and an organic recycling system. The mentioned resource utilization system connection;
[0035] The resource utilization system includes a cracking system and an oil purification system, the cracking system includes an organic compound pretreatment structure, the organic compound pretreatment structure is connected to a cracking furnace, and the cracking furnaces are respectively connected with exhaust gas A processing device, a gas-solid separation tower and a gas storage tank. The gas-solid separation tower is sequentially connected with an isoparaffin adjustment furnace, a catalytic tower A, a heat exchanger, and an oil-gas separation device. The purification system is connected; the oil purification system includes an intermediate raw material tank, a distillation tower, a catalytic tower B, a tubular heat exchanger, an oil and gas separation tank, a semi-finished product tank, a tempering and stirring device, a precipitation Tank A, blending and stirring device, sedimentation tank B, neutralization tank, decolorization filter device and product oil tank.
[0036] The inorganic recycling system includes a crusher, a trommel, a bounce sorter, a non-burning brick forming machine, and a combustible material granulator.
[0037] The recovered inorganic materials can be used for the preparation of non-burning bricks and the preparation of combustible particles; metals are screened out and sold directly for secondary use; organic materials are used as resources to finally generate clean diesel.
[0038] A vacuum and oxygen-free environment is used in the cracking furnace, so that part of the chlorine produced by high-temperature cracking enters the combustion exhaust gas, and the chlorine is removed by the exhaust gas treatment device, and the other part of the chlorine exists in the liquid oil, and is cracked and adsorbed by the alkaline catalyst. Neutralize and dispose of.
[0039] The cracking adopts a continuous production method, and the heating method adopts a hot air furnace. It operates continuously for 20 hours (10 hours in one shift, two shifts), and stops for 4 hours. After the cracking furnace is naturally cooled, the temperature of the furnace will drop by about 50℃ for 4 hours after cooling. When the furnace temperature drops to less than 100°C, the carbon slag in the cracking furnace is automatically removed, and then the second production cycle is entered.
[0040] The waste gas generated by the cracking furnace is processed by a waste gas treatment device, which includes a dust removal and desulfurization scrubber, and the dust removal and desulfurization scrubber is sequentially connected with a photooxygen treatment device of ozone, ultraviolet rays and nanometer titanium metal, an exhaust fan and Smoke exhaust device. The combustion exhaust gas produced by the heating of the cracking furnace passes through the dust removal and desulfurization scrubber, ozone, ultraviolet light and nano-scale metal titanium photooxygen treatment device, exhaust fan and smoke exhaust device to remove the disulfide, odor, PM2.5, nitrogen Pollutants such as chemical compounds are removed and purified to comply with environmental emission standards and then discharged into the atmosphere.
[0041] The reaction temperature in the catalytic tower A of this embodiment is 325-375°C. The catalyst in the catalytic tower A is composed of zinc oxide, aluminum hydroxide, iron trioxide and activated clay. Preferably, in terms of percentages, zinc oxide is 3%, aluminum hydroxide is 5%, iron trioxide is 2%, and active White clay 90%. Different from the traditional hydrogenation method, the carbon chain in the gaseous alkane is shortened and reorganized, so that the hydrocarbon is reorganized into C 12 H 26 -C 20 H 42 More than 70% of the diesel fraction is converted into diesel. The catalyst of the invention has high adsorption rate, fast reaction speed, high conversion rate and low cost.
[0042] The heat exchanger of this embodiment adopts a water cycle for heat exchange, and the water in the heat exchanger is closed and recycled, which will not cause waste and pollution of water resources.
[0043] The liquid oil and non-condensable gas from the outlet of the heat exchanger are separated from the non-condensable gas through the oil-gas separation device. The liquid oil enters the oil purification system for purification, and the non-condensable gas enters the gas storage tank through the flame arrestor. Used for heating fuel in cracking furnace, among them, the main component of liquid oil is CH 3 OH, CH 3 COCH 3 , C 2 H 5 COOH, CH 3 CHO, non-condensable gas component is methane.
[0044] The oil-gas separation device is also connected with a flame arrestor, and the flame arrestor is connected with the gas storage tank.
[0045] After the oil and gas separation device, the separated gas is input into the gas storage tank through the flame arrestor for heating in the cracking furnace; the separated liquid oil enters the intermediate raw material tank and is purified in the oil purification system.
[0046] The distillation tower is also connected with a tubular heating furnace, and the feedstock oil is heated by the tubular heating furnace, and then enters the distillation column to be distilled and classified according to fractions. The distillation tower is also connected to a residual oil tank B, and the residual oil remaining from the reaction in the distillation tower enters the residual oil tank B, and then is transported to the cracking furnace for re-reaction.
[0047] The organic compounds processed in this embodiment are derived from municipal solid waste and contain waste water and other organic waste. Therefore, air deodorization and waste water collection and treatment should be done in the stacking place or when it is broken. Air purification and deodorization is equipped with a high-power and large-capacity ozone ultraviolet light and nano-metal titanium photooxygen processor, and the air purification rate reaches 99.99%; the waste water is collected and discharged after being treated by the "industrial sewage treatment integrated machine 20T/h".
