Urban domestic waste deep resource utilization system and method

A technology for recycling municipal solid waste, which is applied in the system field of deep resource utilization of municipal solid waste, to achieve the effects of protecting the environment, high calorific value, and avoiding secondary pollution

Pending Publication Date: 2019-03-29
0 Cites 1 Cited by

AI-Extracted Technical Summary

Problems solved by technology

[0006] In order to solve the above problems in the prior art, the present invention provides a system and method for deep resource utilization of municipal solid waste. The method of the present invention firstly classifies the waste, obtains materials for different purposes after processing, and separates the organic matter Carry out deep processing into clean diesel oil, and there will be no pol...
View more


The invention discloses an urban domestic waste deep resource utilization system and method. The system comprises a waste classification system and a resource utilization system, wherein the waste classification system comprises a waste crushing system and a magnetic separation system in sequential connection; the magnetic separation system is respectively connected with a metal recovery system, an inorganic matter recovery system and an organic matter recovery system; the organic matter recovery system is connected with the resource utilization system. By using the system provided by the invention, the urban domestic waste is classified; various kinds of substances are sequentially classified and are sufficiently recovered and reused; the organic matters are subjected to cracking and purification treatment to obtain clean diesel oil, so that the pollution of the waste on atmosphere, water body and soil is reduced.

Application Domain

Liquid hydrocarbon mixture production

Technology Topic

Resource utilizationOrganic matter +7


  • Urban domestic waste deep resource utilization system and method


  • Experimental program(2)

Example Embodiment

[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".

Example Embodiment

[0048] Example 2
[0049] The method for in-depth resource utilization of municipal solid waste in this embodiment includes the following steps:
[0050] (1) Put the municipal solid waste into the garbage sorting system first. After the waste crushing system and the magnetic separation system, the municipal solid waste is divided into inorganic matter, metal and organic matter, and enter the inorganic matter recycling system, metal recycling system and organic matter respectively. Recycling system for recycling processing;
[0051] (2) The organic recovery system is connected with the resource utilization system, and the organic compounds are uniformly and continuously placed in the organic compound pretreatment structure at a rate of 1 ton/hour for pulverization, and then enter the cracking furnace through the hopper for cracking reaction. Reversible reaction at -300℃, cracking into high temperature oil and gas;
[0052] (3) High-temperature oil and gas pass through the gas-solid separation tower, isoparaffin adjustment furnace, catalytic tower A, heat exchanger, oil and gas separation device to separate liquid oil into the intermediate raw material tank, and the separated non-condensable gas passes through the flame arrestor Into the gas storage tank;
[0053] Among them, the catalyst in catalytic tower A is 30% zinc oxide, 50% aluminum hydroxide, and 20% activated clay in mass ratio, and the catalytic temperature in catalytic tower A is 325-375°C;
[0054] (4) The liquid oil output from the intermediate raw material tank sequentially enters the distillation tower, the catalytic tower B, the tubular heat exchanger, the oil and gas separation tank, the semi-finished product tank, the tempering and stirring device, the precipitation tank A, the blending and stirring device, and the precipitation tank. B. Neutralization tank, decolorization filter device and product oil tank to obtain clean diesel.


no PUM

Description & Claims & Application Information

We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.

Similar technology patents

Aviation component cleaning agent and preparing method

ActiveCN106757112Agood compatibilityhigh flash point

Epoxy low-polyether glyceride plasticizer and preparation method thereof

ActiveCN112961404Ahigh flash pointHigh resistance to migration

Coal tar cleaning agent

InactiveCN108531317Ashorten cleaning timehigh flash point

High-flash-point safe epoxy micaceous iron oxide intermediate coating and preparation method thereof

PendingCN114806324Ahigh flash pointgood wettability

Rat-proof oil for ADSS optical cable

PendingCN114773992Ahigh flash pointlow volatility

Classification and recommendation of technical efficacy words

  • high calorific value
  • high flash point

Technology and equipment for preparation of synthetic gas by two-stage high temperature biomass gasification

InactiveCN102226107AImprove equipment production capacityhigh calorific value

Oily biomass wood dust particle fuel formula with high combustion value and preparation method thereof

InactiveCN103060043Ahigh calorific valuegood compression ratio

Method for comprehensive treatment of wastewater and sludge gas utilization of cane sugar factory

InactiveCN101492222AEliminates corrosive and pollutinghigh calorific value

Flame retardant acrylate adhesive

InactiveCN103834330Ahigh flash point

Concentrated solution for hydraulic support for mines and preparation method

InactiveCN103074151Ahigh flash pointLower freezing point

Preparation method for environment-friendly extreme-pressure cutting oil

InactiveCN106560507Alow viscosityhigh flash point

Multipurpose aluminum-magnesium drawing oil and production method thereof

ActiveCN102925266AThe oil is less volatilehigh flash point

Chlorbenzuron suspending agent and preparation method thereof

InactiveCN101530086Ahigh flash pointreduce environmental pollution
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products