CN112831338A - Process for preparing oil by continuously cracking mixed plastics in garbage at low temperature - Google Patents

Process for preparing oil by continuously cracking mixed plastics in garbage at low temperature Download PDF

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Publication number
CN112831338A
CN112831338A CN202011613100.3A CN202011613100A CN112831338A CN 112831338 A CN112831338 A CN 112831338A CN 202011613100 A CN202011613100 A CN 202011613100A CN 112831338 A CN112831338 A CN 112831338A
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plastic
data
oil
preset
screen
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吴永刚
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China Plastics Huixin Technology Development Co Ltd
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China Plastics Huixin Technology Development Co Ltd
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Priority to CN202011613100.3A priority Critical patent/CN112831338A/en
Publication of CN112831338A publication Critical patent/CN112831338A/en
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    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G1/00Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
    • C10G1/10Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal from rubber or rubber waste
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G1/00Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
    • C10G1/002Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal in combination with oil conversion- or refining processes
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G1/00Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
    • C10G1/008Controlling or regulating of liquefaction processes
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G1/00Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
    • C10G1/08Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal with moving catalysts
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G2300/00Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
    • C10G2300/10Feedstock materials
    • C10G2300/1003Waste materials

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

The invention belongs to the field of plastic oil production, in particular to a process for producing oil by mixing plastic in low-temperature cracking garbage by a continuous method, which aims at solving the problem that the crushing condition of the plastic is inconvenient to monitor in the prior art, and provides the following scheme, which comprises the following steps: s1: crushing the plastic, and screening the crushed plastic through a screen; s2: monitoring the pressure on the screen by a pressure sensor, transmitting monitoring data to a controller, and starting timing by a timer at the same time; s3: comparing the data monitored by the pressure sensor with preset data, and recording the time consumed when the preset data is reached; s4: the recorded time is compared with the preset time, and when the recorded time is longer than the preset time, the plastic is well crushed.

Description

Process for preparing oil by continuously cracking mixed plastics in garbage at low temperature
Technical Field
The invention relates to the technical field of plastic oil production, in particular to a process for producing oil by mixing plastic in low-temperature pyrolysis garbage by a continuous method.
Background
Plastics are high molecular compounds (macromolecules) which are polymerized by addition polymerization or polycondensation reaction and are intermediate in deformation resistance between fibers and rubber, and are composed of synthetic resin, fillers, plasticizers, stabilizers, lubricants, pigments and other additives, and the main component of the plastics is resin. The resin means a polymer compound which has not been mixed with various additives. The term resin is originally named as lipids secreted by animals and plants, such as rosin, shellac, and the like. The resin accounts for about 40-100% of the total weight of the plastic. The basic properties of plastics are largely determined by the nature of the resin, but additives also play an important role. Some plastics are basically composed of synthetic resin, contain no or few additives such as organic glass, polystyrene and the like, a large amount of waste plastics generated in daily domestic garbage of people seriously harm the living environment of human beings, and are called as 'white garbage', and the white garbage is also the most headache environmental management problem of governments of various countries.
Through searching, publication No.: the patent document CN101260309B discloses a method for producing fuel oil by continuously catalyzing and cracking mixed waste plastics, which relates to a process for producing fuel oil by cracking waste plastics. The two-stage continuous operation process combining catalytic thermal cracking and thermal cracking catalytic modification is adopted, the first-stage thermal cracking process adopts a fluidized tubular bed technology with an auxiliary transmission device to realize the continuous operation of cracking, and a cheap and nontoxic catalyst is added to improve the plastic cracking reaction rate and reduce the cracking reaction temperature; the second stage of catalytic cracking refining process adopts fluidized bed catalyst to make secondary catalytic cracking modification reaction on the cracked gas produced in the first stage so as to raise the gasoline-diesel fraction ratio in the liquid fuel obtained by cracking. The process is a totally-enclosed continuous operation production, the used waste plastic raw materials do not need to be classified, cleaned and dried, the operation is flexible, the operation cost is low, the process is particularly suitable for cracking mixed waste plastics in urban and rural domestic garbage to prepare oil, the oil yield of qualified fuel oil can reach over 66 percent according to the waste plastics, and the process has considerable economic and social benefits.
However, the above mentioned patent is not convenient to monitor the plastic crushing condition, so we propose a continuous process for producing oil by cracking the mixed plastic in the garbage at low temperature, which is used to solve the above mentioned problems.
Disclosure of Invention
The invention aims to solve the defect that the plastic crushing condition is inconvenient to monitor in the prior art, and provides a process for preparing oil by continuously cracking mixed plastics in garbage at low temperature.
In order to achieve the purpose, the invention adopts the following technical scheme:
a process for preparing oil by continuously cracking mixed plastics in garbage at low temperature comprises the following steps:
s1: crushing the plastic, and screening the crushed plastic through a screen;
s2: monitoring the pressure on the screen by a pressure sensor, transmitting monitoring data to a controller, and starting timing by a timer at the same time;
s3: comparing the data monitored by the pressure sensor with preset data, and recording the time consumed when the preset data is reached;
s4: comparing the recorded time with preset time, wherein when the recorded time is longer than the preset time, the plastic is well crushed, and if the recorded time is shorter than the preset time, the plastic crushing effect is not good, and the crushing mechanism needs to be adjusted;
s5: mixing the crushed plastic with catalyst powder, cracking the mixture in a heating kettle at the temperature of 350-400 ℃, cracking the waste plastic to convert the waste plastic into low molecular weight hydrocarbons to be vaporized, and then condensing the hydrocarbons into liquid to enter an oil-water separator for oil-water separation to prepare crude oil;
s6: performing secondary cracking on the crude oil and the catalyst at the temperature of 380-400 ℃ to prepare a gasoline and diesel component;
s7: and (3) inputting the gasoline and diesel oil components into a heat exchanger, then entering a distillation still for fractionation, and condensing to obtain the finished product gasoline.
Preferably, in S1, the plastic is crushed, the crushed plastic is screened by the screen, the qualified crushed material passes through the screen, the unqualified crushed material remains on the screen, and the pressure applied to the screen increases with the increase of the plastic on the screen.
Preferably, in S5, the crushed plastic is mixed with the catalyst powder, cracked at 380 ℃, cracked to convert the waste plastic into low molecular weight hydrocarbons to be vaporized, then condensed into liquid, and the liquid enters an oil-water separator to be subjected to oil-water separation, and the gas enters a purification mechanism to be subjected to purification treatment.
Preferably, purification mechanism comprises filter screen, activated carbon layer and ultraviolet lamp, filters gas through the filter screen, adsorbs gas through the activated carbon layer, discharges after the ultraviolet lamp photolysis at last.
Preferably, the both sides of filter screen are equipped with pressure sensor, monitor the both sides pressure of filter screen through the pressure sensor of both sides to calculate the pressure differential of filter screen both sides, pressure differential data transmission to controller.
Preferably, the pressure difference data is compared with data preset by the controller, when the pressure difference data is larger than the preset data, the alarm gives an alarm, meanwhile, the standby channel is started, and the gas enters the standby channel for processing.
Preferably, the gas discharged after the photolysis of the ultraviolet lamp is contacted with the crushed plastic to preheat the plastic, the temperature of the gas is detected, and the detected temperature data is transmitted to the controller.
Preferably, the detected temperature data is compared with the preset temperature data of the controller, when the data is larger than the preset data, the gas enters an interlayer of the heating kettle to keep the temperature of the heating kettle, and when the data is smaller than the preset data, the gas is directly discharged outdoors.
Compared with the prior art, the invention has the beneficial effects that:
according to the scheme, the pressure applied to the screen is monitored through the pressure sensor, monitoring data are transmitted to the controller, and meanwhile, the timer starts timing; comparing the data monitored by the pressure sensor with preset data, and recording the time consumed when the preset data is reached; comparing the recorded time with the preset time, wherein when the recorded time is longer than the preset time, the crushing of the plastics is good, and if the recorded time is shorter than the preset time, the crushing effect of the plastics is not good, so that the crushing effect of the plastics can be effectively monitored;
according to the scheme, the pressure sensors on the two sides are used for monitoring the pressure on the two sides of the filter screen, the pressure difference on the two sides of the filter screen is calculated, the pressure difference data are transmitted to the controller, the pressure difference data are compared with data preset by the controller, when the pressure difference data are larger than the preset data, the alarm gives an alarm, meanwhile, the standby channel is started, gas enters the standby channel for processing, and the filtering of the gas can be monitored;
according to the scheme, gas discharged after photolysis by an ultraviolet lamp is contacted with crushed plastic, the plastic is preheated, the temperature of the gas is detected, the detected temperature data is transmitted to a controller, the detected temperature data is compared with the temperature data preset by the controller, when the data is greater than the preset data, the gas enters an interlayer of a heating kettle, the heating kettle is insulated, when the data is less than the preset data, the gas is directly discharged outdoors, the discharged gas can be reused, and heat loss in the gas is avoided;
the invention can effectively monitor the crushing effect of plastics, can monitor the filtration of gas, can reuse the discharged gas and avoids the loss of heat in the gas.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
Example one
A process for preparing oil by continuously cracking mixed plastics in garbage at low temperature comprises the following steps:
s1: crushing the plastic, screening the crushed plastic through a screen, enabling qualified crushed materials to pass through the screen, enabling unqualified crushed materials to be left on the screen, and increasing the pressure borne by the screen along with the increase of the plastic on the screen;
s2: monitoring the pressure on the screen by a pressure sensor, transmitting monitoring data to a controller, and starting timing by a timer at the same time;
s3: comparing the data monitored by the pressure sensor with preset data, and recording the time consumed when the preset data is reached;
s4: comparing the recorded time with preset time, wherein when the recorded time is longer than the preset time, the plastic is well crushed, and if the recorded time is shorter than the preset time, the plastic crushing effect is not good, and the crushing mechanism needs to be adjusted;
s5: mixing the crushed plastic and catalyst powder, cracking the mixture in a heating kettle at 350 ℃, cracking the waste plastic into low molecular weight hydrocarbons to vaporize the hydrocarbons, condensing the hydrocarbons into liquid, separating oil from water in an oil separator, purifying the gas in a purification mechanism to obtain crude oil, wherein the purification mechanism comprises a filter screen, an active carbon layer and an ultraviolet lamp, filtering the gas through the filter screen, adsorbing the gas through the active carbon layer, discharging the gas after photolysis of the ultraviolet lamp, arranging pressure sensors on two sides of the filter screen, monitoring the pressure on two sides of the filter screen through the pressure sensors on the two sides, calculating the pressure difference on the two sides of the filter screen, transmitting the pressure difference data to a controller, comparing the pressure difference data with the data preset by the controller, and when the pressure difference data is greater than the preset data, alarming by an alarm and starting a standby channel at the same time, the gas enters a standby channel for treatment, the gas discharged after photolysis by an ultraviolet lamp is contacted with the crushed plastic, the plastic is preheated, meanwhile, the temperature of the gas is detected, the detected temperature data is transmitted to a controller, the detected temperature data is compared with the temperature data preset by the controller, when the data is greater than the preset data, the gas enters an interlayer of a heating kettle, the heating kettle is subjected to heat preservation, and when the data is less than the preset data, the gas is directly discharged outdoors;
s6: performing secondary cracking on the crude oil and a catalyst at 380 ℃ to prepare a gasoline and diesel oil component;
s7: and (3) inputting the gasoline and diesel oil components into a heat exchanger, then entering a distillation still for fractionation, and condensing to obtain the finished product gasoline.
Example two
A process for preparing oil by continuously cracking mixed plastics in garbage at low temperature comprises the following steps:
s1: crushing the plastic, screening the crushed plastic through a screen, enabling qualified crushed materials to pass through the screen, enabling unqualified crushed materials to be left on the screen, and increasing the pressure borne by the screen along with the increase of the plastic on the screen;
s2: monitoring the pressure on the screen by a pressure sensor, transmitting monitoring data to a controller, and starting timing by a timer at the same time;
s3: comparing the data monitored by the pressure sensor with preset data, and recording the time consumed when the preset data is reached;
s4: comparing the recorded time with preset time, wherein when the recorded time is longer than the preset time, the plastic is well crushed, and if the recorded time is shorter than the preset time, the plastic crushing effect is not good, and the crushing mechanism needs to be adjusted;
s5: mixing the crushed plastic and catalyst powder, cracking the mixture in a heating kettle at 370 ℃, cracking the waste plastic into low molecular weight hydrocarbons to vaporize the hydrocarbons, condensing the hydrocarbons into liquid, separating oil from water in an oil separator, purifying the gas in a purification mechanism to obtain crude oil, wherein the purification mechanism comprises a filter screen, an active carbon layer and an ultraviolet lamp, filtering the gas through the filter screen, adsorbing the gas through the active carbon layer, discharging the gas after photolysis of the ultraviolet lamp, arranging pressure sensors on two sides of the filter screen, monitoring the pressure on two sides of the filter screen through the pressure sensors on the two sides, calculating the pressure difference on the two sides of the filter screen, transmitting the pressure difference data to a controller, comparing the pressure difference data with the data preset by the controller, when the pressure difference data is greater than the preset data, alarming by an alarm, and starting a standby channel at the same time, the gas enters a standby channel for treatment, the gas discharged after photolysis by an ultraviolet lamp is contacted with the crushed plastic, the plastic is preheated, meanwhile, the temperature of the gas is detected, the detected temperature data is transmitted to a controller, the detected temperature data is compared with the temperature data preset by the controller, when the data is greater than the preset data, the gas enters an interlayer of a heating kettle, the heating kettle is subjected to heat preservation, and when the data is less than the preset data, the gas is directly discharged outdoors;
s6: performing secondary cracking on the crude oil and a catalyst at 390 ℃ to prepare a gasoline and diesel oil component;
s7: and (3) inputting the gasoline and diesel oil components into a heat exchanger, then entering a distillation still for fractionation, and condensing to obtain the finished product gasoline.
EXAMPLE III
A process for preparing oil by continuously cracking mixed plastics in garbage at low temperature comprises the following steps:
s1: crushing the plastic, screening the crushed plastic through a screen, enabling qualified crushed materials to pass through the screen, enabling unqualified crushed materials to be left on the screen, and increasing the pressure borne by the screen along with the increase of the plastic on the screen;
s2: monitoring the pressure on the screen by a pressure sensor, transmitting monitoring data to a controller, and starting timing by a timer at the same time;
s3: comparing the data monitored by the pressure sensor with preset data, and recording the time consumed when the preset data is reached;
s4: comparing the recorded time with preset time, wherein when the recorded time is longer than the preset time, the plastic is well crushed, and if the recorded time is shorter than the preset time, the plastic crushing effect is not good, and the crushing mechanism needs to be adjusted;
s5: mixing the crushed plastic and catalyst powder, cracking the mixture in a heating kettle at 400 ℃, cracking the waste plastic into low molecular weight hydrocarbons to vaporize the hydrocarbons, condensing the hydrocarbons into liquid, separating oil from water in an oil separator, purifying the gas in a purification mechanism to obtain crude oil, wherein the purification mechanism comprises a filter screen, an active carbon layer and an ultraviolet lamp, filtering the gas through the filter screen, adsorbing the gas through the active carbon layer, discharging the gas after photolysis of the ultraviolet lamp, arranging pressure sensors on two sides of the filter screen, monitoring the pressure on two sides of the filter screen through the pressure sensors on the two sides, calculating the pressure difference on the two sides of the filter screen, transmitting the pressure difference data to a controller, comparing the pressure difference data with the data preset by the controller, and when the pressure difference data is greater than the preset data, alarming by an alarm and starting a standby channel at the same time, the gas enters a standby channel for treatment, the gas discharged after photolysis by an ultraviolet lamp is contacted with the crushed plastic, the plastic is preheated, meanwhile, the temperature of the gas is detected, the detected temperature data is transmitted to a controller, the detected temperature data is compared with the temperature data preset by the controller, when the data is greater than the preset data, the gas enters an interlayer of a heating kettle, the heating kettle is subjected to heat preservation, and when the data is less than the preset data, the gas is directly discharged outdoors;
s6: performing secondary cracking on the crude oil and a catalyst at 400 ℃ to prepare a gasoline and diesel oil component;
s7: and (3) inputting the gasoline and diesel oil components into a heat exchanger, then entering a distillation still for fractionation, and condensing to obtain the finished product gasoline.
Through the process for preparing the oil by mixing the plastics in the low-temperature pyrolysis garbage by the continuous method provided by the first embodiment, the second embodiment and the third embodiment, the crushing effect of the plastics can be effectively monitored, the filtering of the gas can be monitored, the discharged gas can be reused, and the loss of heat in the gas is avoided.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (8)

1. A process for preparing oil by continuously cracking mixed plastics in garbage at low temperature is characterized by comprising the following steps:
s1: crushing the plastic, and screening the crushed plastic through a screen;
s2: monitoring the pressure on the screen by a pressure sensor, transmitting monitoring data to a controller, and starting timing by a timer at the same time;
s3: comparing the data monitored by the pressure sensor with preset data, and recording the time consumed when the preset data is reached;
s4: comparing the recorded time with preset time, wherein when the recorded time is longer than the preset time, the plastic is well crushed, and if the recorded time is shorter than the preset time, the plastic crushing effect is not good, and the crushing mechanism needs to be adjusted;
s5: mixing the crushed plastic with catalyst powder, cracking the mixture in a heating kettle at the temperature of 350-400 ℃, cracking the waste plastic to convert the waste plastic into low molecular weight hydrocarbons to be vaporized, and then condensing the hydrocarbons into liquid to enter an oil-water separator for oil-water separation to prepare crude oil;
s6: performing secondary cracking on the crude oil and the catalyst at the temperature of 380-400 ℃ to prepare a gasoline and diesel component;
s7: and (3) inputting the gasoline and diesel oil components into a heat exchanger, then entering a distillation still for fractionation, and condensing to obtain the finished product gasoline.
2. The process of claim 1, wherein in step S1, the plastic is crushed, the crushed plastic is screened by the screen, the qualified crushed material passes through the screen, the unqualified crushed material remains on the screen, and the pressure applied to the screen increases as the plastic on the screen increases.
3. The continuous process oil production process by low-temperature cracking of mixed plastics in garbage according to claim 1, wherein in S5, the crushed plastics are mixed with catalyst powder, cracking is performed at 380 ℃, the waste plastics are cracked and converted into low molecular weight hydrocarbons to be vaporized, and then condensed into liquid, which is sent to an oil-water separator for oil-water separation, and the gas is sent to a purification mechanism for purification treatment.
4. The continuous low-temperature garbage cracking and plastic-blending oil production process according to claim 3, wherein the purification mechanism comprises a filter screen, an activated carbon layer and an ultraviolet lamp, the filter screen is used for filtering gas, the activated carbon layer is used for adsorbing gas, and the ultraviolet lamp is used for photolysis and then discharging.
5. The continuous process for preparing oil by cracking garbage at low temperature and mixing with plastics as claimed in claim 4, wherein the two sides of the filter screen are provided with pressure sensors, the pressure sensors on the two sides monitor the pressure on the two sides of the filter screen, the pressure difference between the two sides of the filter screen is calculated, and the pressure difference data is transmitted to the controller.
6. The process for preparing the oil by continuously cracking the mixed plastics in the garbage at the low temperature according to claim 5, wherein the pressure difference data is compared with the data preset by the controller, when the pressure difference data is larger than the preset data, the alarm gives an alarm, and meanwhile, the standby channel is started, so that the gas enters the standby channel for processing.
7. The process of claim 4, wherein the gas discharged after photolysis by the ultraviolet lamp is contacted with the crushed plastic to preheat the plastic, and the temperature of the gas is detected at the same time, and the detected temperature data is transmitted to the controller.
8. The process of claim 7, wherein the detected temperature data is compared with temperature data preset by a controller, when the data is larger than the preset data, gas enters an interlayer of the heating kettle to insulate the heating kettle, and when the data is smaller than the preset data, the gas is directly discharged outdoors.
CN202011613100.3A 2020-12-30 2020-12-30 Process for preparing oil by continuously cracking mixed plastics in garbage at low temperature Pending CN112831338A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115093878A (en) * 2022-07-15 2022-09-23 中塑汇鑫科技发展有限公司 Method for preparing naphtha from waste plastics

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101260309A (en) * 2008-04-28 2008-09-10 同济大学 Continuous catalysis cracking method for producing fuel oil from mixed waste plastic
CN104479718A (en) * 2014-11-14 2015-04-01 烟台荣盛压力容器制造有限公司 Method for refining oil by adopting waste plastics
CN209036784U (en) * 2019-04-30 2019-06-28 四川兴亿塑业有限公司 A kind of feeding warning device
CN211677181U (en) * 2019-12-30 2020-10-16 江苏盘古智能制造有限公司 Exhaust treatment device with intelligent sensor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101260309A (en) * 2008-04-28 2008-09-10 同济大学 Continuous catalysis cracking method for producing fuel oil from mixed waste plastic
CN104479718A (en) * 2014-11-14 2015-04-01 烟台荣盛压力容器制造有限公司 Method for refining oil by adopting waste plastics
CN209036784U (en) * 2019-04-30 2019-06-28 四川兴亿塑业有限公司 A kind of feeding warning device
CN211677181U (en) * 2019-12-30 2020-10-16 江苏盘古智能制造有限公司 Exhaust treatment device with intelligent sensor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115093878A (en) * 2022-07-15 2022-09-23 中塑汇鑫科技发展有限公司 Method for preparing naphtha from waste plastics
CN115093878B (en) * 2022-07-15 2023-12-05 中塑汇鑫科技发展有限公司 Method for preparing naphtha from waste plastics

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