WO2023223339A1 - A waste decomposition device - Google Patents

A waste decomposition device Download PDF

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Publication number
WO2023223339A1
WO2023223339A1 PCT/IN2023/050441 IN2023050441W WO2023223339A1 WO 2023223339 A1 WO2023223339 A1 WO 2023223339A1 IN 2023050441 W IN2023050441 W IN 2023050441W WO 2023223339 A1 WO2023223339 A1 WO 2023223339A1
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WO
WIPO (PCT)
Prior art keywords
waste
gases
gate valve
outlet
pyrolysis chamber
Prior art date
Application number
PCT/IN2023/050441
Other languages
French (fr)
Inventor
Mihir Pareshkumar Dixit
Original Assignee
Mihir Pareshkumar Dixit
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mihir Pareshkumar Dixit filed Critical Mihir Pareshkumar Dixit
Publication of WO2023223339A1 publication Critical patent/WO2023223339A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/027—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/027—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
    • F23G5/0273—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage using indirect heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/022—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00—Pretreatment
    • F23G2201/30—Pyrolysing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2204/00—Supplementary heating arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2205/00—Waste feed arrangements
    • F23G2205/12—Waste feed arrangements using conveyors
    • F23G2205/121—Screw conveyor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2205/00—Waste feed arrangements
    • F23G2205/14—Waste feed arrangements using hopper or bin
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2900/00—Special features of, or arrangements for fuel supplies
    • F23K2900/00002—Treating the fuel, either liquid or gaseous, with far-infrared radiations [FIR] to enhance fuel properties
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2900/00—Special features of, or arrangements for fuel supplies
    • F23K2900/01003—Pulverizing solid fuel in vacuum or a reduced pressure environment

Definitions

  • the present invention relates to a device for waste decomposition.
  • the present invention relates to a waste treatment device that successfully decomposes biodegradable, non-biodegradable, biomedical waste along with hazardous chemical waste.
  • the solid waste generated in the premises of society and the countries can be biodegradable, non-biodegradable, and biomedical waste.
  • the generated waste needs to be managed to avoid the spreading of disease.
  • waste management includes the recycling, incineration, landfilling, and biological reprocessing.
  • the management of biodegradable and non- biodegradable includes set of processes from collection, transport, treatment to its final disposal. The treatment and the management of waste ensures that waste is disposed to its least practicable impact on the environment and the health of the people.
  • the biomedical waste cannot be directly dumped into the landfills since it Is hazardous, hence the bio-medical waste is first collected and sterilize, thereafter it is burnt at high temperature to avoid environment pollution.
  • the biodegradable and non-biodegradable waste are collected and dumped directly into the landfills, whereas the biomedical waste are first treated and then dumped into a landfill.
  • the dumping and the treatment of the waste into a landfill results in the generation of enormous amount carbon di oxide and methane gas that can light up easily and result in explosion.
  • the hazardous chemicals, gases, and toxins seep from landfills and get mixed with soil and groundwater causing soil and water pollution.
  • One such conventional process is by the incineration of the solid waste.
  • the process of incineration involves the combustion of the organic waste, to reduce the volume of the waste material upto 95%.
  • the process of incineration takes places at the high temperature in the range of 650°C -1100°C that is beneficial to treat the solid waste along with the hazardous.
  • the process of incineration produces various pollutants, such as carbon mono oxide, nitrogen oxide, hydrochloric acid, sulfur oxide are released in the form of gas that are hard to dispose and cause air pollution and are harmful for the humans too.
  • Another such conventional process is of pyrolysis that treats and decomposes the plastic and non-biodegradable waste. This process is utilized to produce bio-oil and gas. The waste is rapidly heated to temperatures of 650-1000°C to produce the valuable energy and products such as oil and gas.
  • the gas vented out of the pyrolysis plants have high amount of carbon monoxide, that is harmful for humans and causes air pollution when released in the environment.
  • Cipheral patent CN105513662A relates to method for treating dry radioactive waste of a nuclear power plant by adopting a vacuum pyrolysis method.
  • the method is characterized by comprising steps as follows: (1), pretreatment: the dry radioactive waste is subjected to sorting and grinding; (2), pyrolysis: the dry radioactive waste is subjected to pyrolysis in a vacuum pyrolysis furnace; (3), filtering: pyrolysis gas is filtered; (4), cement solidification: ash obtained after complete reaction of the dry radioactive waste is subjected to cement solidification treatment.
  • pretreatment the dry radioactive waste is subjected to sorting and grinding
  • pyrolysis the dry radioactive waste is subjected to pyrolysis in a vacuum pyrolysis furnace
  • filtering pyrolysis gas is filtered
  • cement solidification ash obtained after complete reaction of the dry radioactive waste is subjected to cement solidification treatment.
  • the prior art fails to provide device that results in the complete combustion of the garbage. Further
  • Korean Patent KR20110075085A relates to anaerobic vacuum pyrolysis treatment device for combustible waste, and more particularly, to improve the shape of a heating tube so as not to crack and rupture in a high temperature pyrolysis chamber, and to delay the flow of hot combustion gas flowing through the heating tube.
  • the present invention relates to an oxygen-free vacuum pyrolysis treatment device for combustible wastes, which can prevent thermal loss, and can also be thermally decomposed with a plurality of combustion chambers.
  • the prior art fails to provide a device that is utilized to treat combustible as well as incombustible waste. Further the prior art requires heat recovery as the device cannot withstand high temperatures. Further the waste treated in the prior art is released in harmful gaseous form that pollutes the environment.
  • Cijk patent CN212504708U relates to an oxygen-free high- temperature catalytic garbage treatment device which comprises a high- temperature treatment tank, a treatment groove is formed in the high- temperature treatment tank, a tank cover is arranged at the top of the high-temperature treatment tank and at the position of the treatment groove, and a feeding hopper is fixedly connected to the right side of the center of the top of the tank cover.
  • the invention comprises of infrared heating pipes are fixedly connected in the grooves for the heating and the treatment of the garbage.
  • Patent W02005044952A1 relates to waste treatment machine which makes use of a cylindrical vacuum chamber in order to treat previously- triturated organic and inorganic waste by means of pyrolysis within a temperature range of 250 to 410 DEG C and at 10 to 35 mm Hg.
  • the treated waste is discarded through the discharge gate of the machine.
  • the machine comprises of a burner to heat the vacuum chamber that is located on one of its sides, a pump to circulate water to the condensers, a fan to cool the condensers, a control panel where vacuum gauges, a dividing wall, to separate the control panel from the vacuum chamber.
  • Chinese patent CN109513730A relates to solid organic waste treatment, in particular to a solid organic waste vacuum pyrolysis device and method.
  • the present invention provides a Vacuum pyrolysis device that is environmental-friendly, garbage treatment efficiency is high, low in cost, recycle phase double replacement from electric energy, chemical energy, physical energy three and utilize Advantage is provided the vacuum pyrolysis device and method for of solid organic castoff recycling.
  • the main object of the present invention is to provide a waste decomposition device.
  • Another object of the present invention is to utilize infrared heating for the decomposition of waste that ensures a continuous process.
  • Yet another object of the present invention is to provide a waste decomposition device that is suitable for the treatment of biodegradable, non-biodegradable as well as biomedical waste.
  • Yet another object of the present invention is to provide a waste decomposition device that periodically supplies oxygen to ensure complete combustion of waste.
  • Yet another object of the present invention is to provide a waste decomposition device that is user and environment friendly.
  • Yet another object of the present invention is to provide a waste decomposition device that energy efficient.
  • Yet another object of the present invention is to provide a waste decomposition device that is environment friendly and cost effective.
  • the present invention provides a waste decomposition and treatment device.
  • the present invention relates to a device that is suitable for treating biodegradable, non-biodegradable, biomedical and hazardous chemical waste.
  • An aspect of the present invention is to facilitate periodic supply of oxygen in the present device that ensures complete combustion of the waste.
  • the embodiment of the present invention is to provide a waste treatment and decomposition device.
  • the present invention utilizes infrared heating to treat the waste and produces non-toxic gases as the end product that is released directly in the environment.
  • Thus provides a waste decomposition device that is eco- friendly.
  • the present device (P) comprises of:
  • the embodiment of the present invention is to provide a waste decomposition device.
  • the present device (P) is suitable to treat biodegradable, non- biodegradable, biomedical and chemical hazardous waste.
  • Said present device (P) utilizes infrared heaters and vacuum that ensures continuous treatment of the waste, thus substantially reduces the end product and the energy consumed in the decomposition of the waste.
  • Further oxygen is supplied in present device (P) periodically through the vacuum pump (6) that ensures complete combustion of waste.
  • the present device (P) produces non-toxic gases as the end products that are released directly into the environment.
  • the present invention is environment friendly and energy efficient.
  • the present device comprises of:
  • Processing unit PU
  • the processing unit (PU) on one end receives waste from outside and on the other end is connected to the emission control unit (8).
  • Said processing unit (PU) facilitates the feeding and decomposition of the waste in the present waste decomposition device (P).
  • Said processing unit (PU) comprises of:
  • the waste enters through the feeder (F) that conveys the waste to the shredder (4a).
  • the shredder on one end is connected to said feeder (F) and on the other end is connected to the first knife gate valve (2a).
  • Said shredder (4a) crushes and shreds the large sized waste material into small sized waste and transfers the shredded waste to first knife gate valve (2a).
  • Said first knife gate valve (2a) is a metal base that on one end is connected to the shredder and on the other end is connected to the top tank (4).
  • Said first knife gate valve (2a) works on shutter mechanism that upon receiving the shredded waste flips open and transfers the waste to said top tank (4).
  • the top tank (4) is connected to first knife gate valve (2a) from one end and on the other end is connected to the second knife gate valve (2b). Said top tank (4) retains the shredded waste till the cycle of decomposition completes and transfers the waste to the pyrolysis chamber (1).
  • the second knife gate valve (2b) and the third knife gate valve (2c) are made up of a soft metal base and work on shutter mechanism. Said second knife gate valve (2b) and third knife gate valve (2c) open after receiving the waste from said top tank (4) and transfers it to pyrolysis chamber (1) through cooling piece (3) with the help of gravity. Said second knife gate valve (2b) and the third knife gate valve (2c) are synchronized to open and close at the same time in order to maintain the vacuum created inside the pyrolysis chamber (1). Thus said second knife gate valve (2b) and third knife gate valve (2c) regulate the transfer of the shredded waste from the top tank (4) to the pyrolysis chamber (1) and maintain vacuum.
  • the cooling piece (3) is a hollow metal pipe mounted over the pyrolysis chamber (1) that extracts the heat coming from the pyrolysis chamber (1) and protect the second knife edge valve (2b) and third knife edge valve (2c) from high temperature.
  • the pyrolysis chamber (1) receives waste from top tank (4) and on the other end is connected to the emission control unit (8).
  • the pyrolysis chamber (1) comprises of infrared heaters (5) and the vacuum pump (6) that facilitates the decomposition of the shredded waste. Vacuum is created in said pyrolysis chamber (1) with the help of the vacuum pump (6).
  • Said vacuum pump (6) creates negative pressure in the Pyrolysis chamber (1) to create oxygen deprived medium that facilitates the process decomposition of the waste.
  • Said vacuum pump (6) is regulated by the vacuum gauge (Cb) that allows the initiation of decomposition process only after the vacuum reaches 600 - 700 mm Hg.
  • the infrared heaters (5) are present inside pyrolysis chamber (1) rises the temperature of the pyrolysis chamber (1) preferably in the range of 850-1100°C that completely burns the waste and converts the waste into non-toxic gases and residual gases with negligible ashes as the byproduct in the decomposition process, the produced ashes are rich in silica hence are further reused commercially.
  • Said infrared heaters are regulated by said temperature sensor (Cc) that senses if the temperature rises above 1100°C and switches off said infrared heaters (5) to protect and ensure long shelf life of the pyrolysis chamber (1)
  • the first outlet (7a) present at the bottom of the pyrolysis chamber (1) removes the ashes formed as byproduct during the decomposition process. Simultaneously the non-toxic and residual gases emitted during the process of decomposition in the pyrolysis chamber (1) are extracted from the second outlet (7b) by the negative pressure of the exhaust blower (9) and conveyed to the buffer tank (8b) of said emission control unit (8).
  • the emission control unit (8) purifies the gases before releasing them in environment.
  • Said emission control unit (8) comprises of: o Scrubber (8a), o Buffer tank (8b), o Third outlet (7c) o Water sprinklers (8c), o Water circulation Tank (8d) o Water circulation pump (8e), o Gas Filter (8f), o Exhaust blower (9), o Chimney (10), o Emission monitoring device (12) and, o probe (13)
  • the buffer tank (8b) on one end is connected to the second outlet (7b) and on the other end is connected to the scrubber (8a).
  • Said buffer tank (8b) receives hydrocarbon rich gases and condense these gases to form bio oil.
  • hydrocarbon rich bio oil is collected from the present device (P) through the third outlet (7c) that is present at the bottom of the said buffer tank (8b).
  • Said buffer tank (8b) conveys the gases to the scrubber (8a).
  • the scrubber (8a) is a unit that purifies gases by removing the impurities dissolved in the residual gases.
  • Said scrubber (8a) is connected to the buffer tank (8b) and gas filter (8f).
  • Said scrubber (8a) comprises of water sprinklers (8c) that sprinkles water while the gases are scrubbed to remove impurities from the gases.
  • Said water sprinklers (8c) receives water from water circulation tank (8d).
  • the water circulation tank (8d) circulates water with the help of water circulation pump (8e).
  • Said water circulation tank (8d) circulates the water multiple times in the scrubber (8a) before collecting the waste water.
  • the processed residual gases present in the scrubber (8a) are thereafter sent to the Gas filter (8f) for further purification.
  • the non-toxic gases and the purified residual gases from the gas filter (8f) are extracted from the emission control unit (8) and conveyed to chimney (10) with the help of the exhaust blower (9).
  • Said chimney receives the purified gases and conveys them out of the present device (P).
  • Said chimney (10) on one end is connected to the exhaust blower (9) and on the other end is connected to the emission monitoring device (11).
  • a probe (12) is inserted in said chimney (10) that analyses the toxicity of gas and sends the data to the emission monitoring device (11).
  • the emission monitoring device (11) on one end is connected to the chimney (10) and on the other end is connected to the control unit (C).
  • Said emission monitoring device (11) receives data from probe (12) and utilizes that data to set the air pollution control parameters and monitor the emission of the gases through the chimney (10).
  • the present device (P) is environment friendly as it ensures only non-toxic harmless gases are released into the environment.
  • the present device (P) provides a waste decomposition device that is suitable for treating biodegradable, non-biodegradable, biomedical and chemical waste. Said device eliminates the generation of ashes as the byproduct of the waste treatment. Further the gases produced in the present invention are non-toxic and thus are released into the environment.
  • the waste is fed in the present device through said feeder (F).
  • Said feeder (F) conveys the waste to said shredder (4a) for crushing and shredding of waste to small sized particles.
  • Shredding of waste escalates the speed of decomposition and increases the amount of waste that is treated in one cycle, thus providing an energy efficient device.
  • Shredded waste is sent to the top tank (4) through first knife gate valve (2a) with the help of gravity, meanwhile the second knife gate valve (2b) and third knife gate valve (2c) are kept closed to prevent the transfer of the waste to the pyrolysis chamber (1).
  • Said second knife gate valve (2b) and third knife gate valve (2c) are synchronized and work on shutter mechanism.
  • said second knife gate valve (2b) and third knife gate valve (2c) open and transfers the waste to the pyrolysis chamber (1) through the cooling piece (3) with the help of gravity. Therefore, gravity facilitates the transfer of the waste from top tank (4) pyrolysis chamber (1), thereby the present invention eliminates the use of external power supply to transfer the waste for treatment, and hence the present invention is energy efficient.
  • the cooling piece (3) is heat resistant and extracts heat coming from the pyrolysis chamber (1) and protects the second knife gate valve (2b) and third knife gate valve (2c). Thus increases the shelf life of the second knife gate valve (2b) and third knife gate valve (2c).
  • the temperature in the pyrolysis chamber (1) is regulated by said temperature sensors (Cc) that switches off the infrared heaters (5) when the temperature exceeds 1100°C, thus preventing the damage of pyrolysis chamber (1) and ensuring long shelf life of the pyrolysis chamber (1). Since the process takes place in high temperature and oxygen starved medium, the waste is burned completely and produce non-toxic gases and negligible amount or of ashes as by product.
  • the ashes produced as the byproduct are removed from the present device (P) through the first outlet (7a) present at the bottom of the pyrolysis chamber (1).
  • the nontoxic gases being light in weight are extracted out of the pyrolysis chamber (1) and conveyed to the emission control unit (8) that emits the nontoxic gases out of the present device (P).
  • the residual gases are heavy due to the presence of impurities and thus are extracted out of the pyrolysis chamber (1) by the negative pressure of the Exhaust blower (9) and conveyed to the buffer tank (8b) of said emission control unit (8) for purification.
  • Said buffer tank (8b) condenses the emitted gases and convert them into bio oil that is collected from the present device through the third outlet (7c) present at the bottom of the buffer tank (8b).
  • Said buffer tank conveys the remaining residual gases to the scrubber for the purpose of purification.
  • Said scrubber (8a) comprises of water sprinklers (8c) that sprinkles water during the scrubbing of residual gases thus separating solid impurities from the residual gases before passing the gases through said gas filter (8f) and releasing them into the environment.
  • Said water sprinklers (7c) receives water from water circulation tank (8d).
  • Said water circulation tank (8d) circulates water multiple times in the scrubber (8a) with the help of water circulation pump (8e) before collecting the waste water.
  • processed residual gases are sent to the gas filter (8f) that filters and removes traces of toxicity in the gases, thus gases are filtered and processed multiple times before being emitted out of the present device (P).
  • the purified residual gas thereafter is extracted out gas filter (8f) through said exhaust blower (9) and conveyed to the chimney (10) for emission.
  • the probe (13) is present inside the chimney (10) that analyses the toxicity and the content of the gases, and sends the data to the said emission monitoring device (12) to set the air pollution control parameters and monitor the emission of the gases through the chimney (10).
  • the present device (P) ensures only non-toxic harmless gases are released into the environment.
  • Table 1- comparative study between waste management/treatment between landfill, present infrared pyrolysis.
  • Table-1 shows a comparison study between landfills and present infrared pyrolysis utilized for waste management.
  • the present device utilizes 0.30 - 0.33 KW/Kg of energy to treat 1kg of waste.
  • the present device has no effect on the land where the waste management takes place.
  • the present device produces negligible by- product in the form of ashes that are rich in silica and thus utilized commercially.
  • the waste is managed in de-centralized form that ensures clean environment by reducing the quantity of waste as byproduct.
  • Table-1 shows a comparison between plasma pyrolysis device and present device.
  • Said table shows the energy consumed in treating 1kg of waste reduces substantially to 0.30 - 0.33 KW/Kg (present device).
  • the present invention utilizes temperature 1100°C to provide the required results.
  • the present device is continuous feeding device due to which it isn't interrupted by the completion of separate batches, thus increases the efficiency of the device and reduces the time taken by the present device to treat waste.
  • the waste is managed in decentralized manner that reduces the byproduct produced and ensures clean environment, that plasma pyrolysis device fails to provide.
  • the present invention is cost effective and is easy to handle.
  • the present invention provides a waste decomposition system that is suitable to treat biodegradable, non-biodegradable, biomedical and chemical hazardous waste.
  • the present invention utilizes infrared heating for the decomposition process, thus facilitates flameless burning of the waste and eliminates the production of the harmful ashes as the by product.
  • the present invention utilizes infrared heating for the decomposition process that releases non-toxic gases as the end product in the present system.
  • the Infrared heaters in the present device transfers heat only to the objects it strikes, thus reducing the heat loss.
  • the present invention is eco-friendly and energy efficient.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

The present invention relates to device that is suitable for treating biodegradable, non- biodegradable, biomedical and hazardous chemical waste. The present device (P) utilizes infrared heating for the decomposition of waste and converts waste into non- toxic gases that are released into the environment. Said present Device (P) comprises of vacuum pump (6) through which oxygen is supplied at a regular interval in the present device (P) that ensures complete combustion of waste. After treating the waste, the residual gases produced in the process are treated multiple times and condensed to bio oil that are further used commercially.

Description

FIELD OF INVENTION:
The present invention relates to a device for waste decomposition. In particular the present invention relates to a waste treatment device that successfully decomposes biodegradable, non-biodegradable, biomedical waste along with hazardous chemical waste.
BACKGROUND OF INVENTION:
The solid waste generated in the premises of society and the countries can be biodegradable, non-biodegradable, and biomedical waste. The generated waste needs to be managed to avoid the spreading of disease. There are various types of waste management that includes the recycling, incineration, landfilling, and biological reprocessing. The management of biodegradable and non- biodegradable includes set of processes from collection, transport, treatment to its final disposal. The treatment and the management of waste ensures that waste is disposed to its least practicable impact on the environment and the health of the people. The biomedical waste cannot be directly dumped into the landfills since it Is hazardous, hence the bio-medical waste is first collected and sterilize, thereafter it is burnt at high temperature to avoid environment pollution.
The biodegradable and non-biodegradable waste are collected and dumped directly into the landfills, whereas the biomedical waste are first treated and then dumped into a landfill. The dumping and the treatment of the waste into a landfill results in the generation of enormous amount carbon di oxide and methane gas that can light up easily and result in explosion. In some cases the hazardous chemicals, gases, and toxins seep from landfills and get mixed with soil and groundwater causing soil and water pollution.
To overcome these problems there are some devices and process present conventionally. One such conventional process is by the incineration of the solid waste. The process of incineration involves the combustion of the organic waste, to reduce the volume of the waste material upto 95%. The process of incineration takes places at the high temperature in the range of 650°C -1100°C that is beneficial to treat the solid waste along with the hazardous. However the process of incineration produces various pollutants, such as carbon mono oxide, nitrogen oxide, hydrochloric acid, sulfur oxide are released in the form of gas that are hard to dispose and cause air pollution and are harmful for the humans too.
Another such conventional process is of pyrolysis that treats and decomposes the plastic and non-biodegradable waste. This process is utilized to produce bio-oil and gas. The waste is rapidly heated to temperatures of 650-1000°C to produce the valuable energy and products such as oil and gas. However, the gas vented out of the pyrolysis plants have high amount of carbon monoxide, that is harmful for humans and causes air pollution when released in the environment.
Therefore there is an unmet need for a device that overcomes the disadvantages of the conventional process and systems that effectively treat the solid biodegradable and non-biodegradable waste without polluting the environment.
PRIOR ART AND ITS DISADVANTAGES:
• Chinese patent CN105513662A relates to method for treating dry radioactive waste of a nuclear power plant by adopting a vacuum pyrolysis method. The method is characterized by comprising steps as follows: (1), pretreatment: the dry radioactive waste is subjected to sorting and grinding; (2), pyrolysis: the dry radioactive waste is subjected to pyrolysis in a vacuum pyrolysis furnace; (3), filtering: pyrolysis gas is filtered; (4), cement solidification: ash obtained after complete reaction of the dry radioactive waste is subjected to cement solidification treatment. However the prior art fails to provide device that results in the complete combustion of the garbage. Further the prior art utilizes filters that substantially increases the cost of the invention.
• Korean Patent KR20110075085A relates to anaerobic vacuum pyrolysis treatment device for combustible waste, and more particularly, to improve the shape of a heating tube so as not to crack and rupture in a high temperature pyrolysis chamber, and to delay the flow of hot combustion gas flowing through the heating tube. The present invention relates to an oxygen-free vacuum pyrolysis treatment device for combustible wastes, which can prevent thermal loss, and can also be thermally decomposed with a plurality of combustion chambers.
However, the prior art fails to provide a device that is utilized to treat combustible as well as incombustible waste. Further the prior art requires heat recovery as the device cannot withstand high temperatures. Further the waste treated in the prior art is released in harmful gaseous form that pollutes the environment.
• Chinese patent CN212504708U relates to an oxygen-free high- temperature catalytic garbage treatment device which comprises a high- temperature treatment tank, a treatment groove is formed in the high- temperature treatment tank, a tank cover is arranged at the top of the high-temperature treatment tank and at the position of the treatment groove, and a feeding hopper is fixedly connected to the right side of the center of the top of the tank cover. The invention comprises of infrared heating pipes are fixedly connected in the grooves for the heating and the treatment of the garbage.
However there is incomplete combustion of the garbage in the prior art, resulting in emission of harmful gases that pollutes the environment. Further the prior art provides a garbage treatment device that is time consuming.
• Patent W02005044952A1 relates to waste treatment machine which makes use of a cylindrical vacuum chamber in order to treat previously- triturated organic and inorganic waste by means of pyrolysis within a temperature range of 250 to 410 DEG C and at 10 to 35 mm Hg. The treated waste is discarded through the discharge gate of the machine. The machine comprises of a burner to heat the vacuum chamber that is located on one of its sides, a pump to circulate water to the condensers, a fan to cool the condensers, a control panel where vacuum gauges, a dividing wall, to separate the control panel from the vacuum chamber.
However there is incomplete combustion of the garbage in the prior art device, resulting in the emission of harmful gases that pollutes the environment. Further the temperature for the garbage treatment is very low that fails to treat the waste completely before releasing it in the environment.
• Chinese patent CN109513730A relates to solid organic waste treatment, in particular to a solid organic waste vacuum pyrolysis device and method. The present invention provides a Vacuum pyrolysis device that is environmental-friendly, garbage treatment efficiency is high, low in cost, recycle phase double replacement from electric energy, chemical energy, physical energy three and utilize Advantage is provided the vacuum pyrolysis device and method for of solid organic castoff recycling.
However the prior art fails to treat inorganic waste. Further there is incomplete combustion of the garbage waste that results in foul smell and environmental pollution.
DISADVANTAGES OF THE PRIOR ART: • Most or all of the prior arts fail to provide a waste decomposition device that is used for biodegradable, non-biodegradable as well as biomedical waste.
• Most or all of the prior art fails to provide a waste decomposition device that periodically supplies oxygen to ensure complete combustion of waste.
• Most or all of the prior art fails to provide a waste decomposition device that comprises of infrared heating to ensure continuous process.
• Most or all of the prior art fails to release waste in form of gases that are does not pollute the environment.
• Most or all of the prior art fails to provide a waste decomposition device that is cost effective.
• Most or all of the prior art fails to provide a waste decomposition device that is user friendly.
• Most or all of the prior art fails to provide waste decomposition device that is energy efficient.
• Most or all of the prior art fails to provide a waste decomposition device that provides a solution to dumping of untreated hazardous directly into the landfills.
Hence there is unmet need for an invention that overcomes the problems mentioned in above prior arts.
OBJECTS OF INVENTION:
• The main object of the present invention is to provide a waste decomposition device.
• Another object of the present invention is to utilize infrared heating for the decomposition of waste that ensures a continuous process. • Yet another object of the present invention is to provide a waste decomposition device that is suitable for the treatment of biodegradable, non-biodegradable as well as biomedical waste.
• Yet another object of the present invention is to provide a waste decomposition device that periodically supplies oxygen to ensure complete combustion of waste.
• Yet another object of the present invention is to provide a waste decomposition device that is user and environment friendly.
• Yet another object of the present invention is to provide a waste decomposition device that energy efficient.
• Yet another object of the present invention is to provide a waste decomposition device that is environment friendly and cost effective. BRIEF DESCRIPTION OF DRAWING:
Figure imgf000008_0002
Meaning of reference numerals of said component parts of present waste decomposition device.
Figure imgf000008_0001
Figure imgf000009_0001
SUMMARY OF THE PRESENT INVENTION:
The present invention provides a waste decomposition and treatment device. In particular the present invention relates to a device that is suitable for treating biodegradable, non-biodegradable, biomedical and hazardous chemical waste. An aspect of the present invention is to facilitate periodic supply of oxygen in the present device that ensures complete combustion of the waste.
The embodiment of the present invention is to provide a waste treatment and decomposition device. The present invention utilizes infrared heating to treat the waste and produces non-toxic gases as the end product that is released directly in the environment. Thus provides a waste decomposition device that is eco- friendly.
The present device (P) comprises of:
• Processing unit (PU)
• Feeder (F),
• Pyrolysis Chamber (1),
• First Knife gate valve (2a)
• Second knife gate valve (2b)
• Third Knife Gate Valve (2c),
• Cooling piece (3),
• Top tank (4),
• Shredder (4a),
• Infrared heaters (5),
• Vacuum pump (6),
• First outlet (7a),
• Second outlet (7b),
• Third outlet (7c),
• emission control unit (8),
• Scrubber (8a),
• Buffer tank (8b),
• Water sprinklers (8c),
• Water circulation tank (8d),
• Water circulation pump (8e), • Gas filter (8f),
• Exhaust blower (9),
• Chimney (1O)7
• Emission control device (11),
• Probe (12),
• Control unit(C),
• vacuum gauge (Cb) and,
• temperature sensor (Cc)
DETAILED DESCRIPTION OF THE PRESENT INVENTION:
The embodiment of the present invention is to provide a waste decomposition device. The present device (P) is suitable to treat biodegradable, non- biodegradable, biomedical and chemical hazardous waste. Said present device (P) utilizes infrared heaters and vacuum that ensures continuous treatment of the waste, thus substantially reduces the end product and the energy consumed in the decomposition of the waste. Further oxygen is supplied in present device (P) periodically through the vacuum pump (6) that ensures complete combustion of waste. The present device (P) produces non-toxic gases as the end products that are released directly into the environment. Thus the present invention is environment friendly and energy efficient.
Referring to fig. 1 the present device comprises of:
• Processing unit (PU),
• Emission control unit (8),
• Control unit (C)
The processing unit (PU) on one end receives waste from outside and on the other end is connected to the emission control unit (8). Said processing unit (PU) facilitates the feeding and decomposition of the waste in the present waste decomposition device (P). Said processing unit (PU) comprises of:
• Feeder (F),
• Pyrolysis Chamber (1),
• First Knife gate valve (2a)
• Second knife gate valve (2b)
• Third Knife Gate Valve (2c),
• Cooling piece (3),
• Top tank (4),
• Shredder (4a),
• Infrared heaters (5),
• Vacuum pump (6),
• First outlet (7a),
• Second outlet (7b),
In the present device (P) the waste enters through the feeder (F) that conveys the waste to the shredder (4a). The shredder on one end is connected to said feeder (F) and on the other end is connected to the first knife gate valve (2a). Said shredder (4a) crushes and shreds the large sized waste material into small sized waste and transfers the shredded waste to first knife gate valve (2a). Said first knife gate valve (2a) is a metal base that on one end is connected to the shredder and on the other end is connected to the top tank (4). Said first knife gate valve (2a) works on shutter mechanism that upon receiving the shredded waste flips open and transfers the waste to said top tank (4). The top tank (4) is connected to first knife gate valve (2a) from one end and on the other end is connected to the second knife gate valve (2b). Said top tank (4) retains the shredded waste till the cycle of decomposition completes and transfers the waste to the pyrolysis chamber (1).
The second knife gate valve (2b) and the third knife gate valve (2c) are made up of a soft metal base and work on shutter mechanism. Said second knife gate valve (2b) and third knife gate valve (2c) open after receiving the waste from said top tank (4) and transfers it to pyrolysis chamber (1) through cooling piece (3) with the help of gravity. Said second knife gate valve (2b) and the third knife gate valve (2c) are synchronized to open and close at the same time in order to maintain the vacuum created inside the pyrolysis chamber (1). Thus said second knife gate valve (2b) and third knife gate valve (2c) regulate the transfer of the shredded waste from the top tank (4) to the pyrolysis chamber (1) and maintain vacuum. The cooling piece (3) is a hollow metal pipe mounted over the pyrolysis chamber (1) that extracts the heat coming from the pyrolysis chamber (1) and protect the second knife edge valve (2b) and third knife edge valve (2c) from high temperature. Once the waste is transferred to the pyrolysis chamber (1), the top tank (4) and the knife gate valves close that halts the feeding of the waste into the present device (P). And the top tank (4) reopens only after the waste is decomposed and byproducts are removed from the present device (P).
The pyrolysis chamber (1) receives waste from top tank (4) and on the other end is connected to the emission control unit (8). The pyrolysis chamber (1) comprises of infrared heaters (5) and the vacuum pump (6) that facilitates the decomposition of the shredded waste. Vacuum is created in said pyrolysis chamber (1) with the help of the vacuum pump (6). Said vacuum pump (6) creates negative pressure in the Pyrolysis chamber (1) to create oxygen deprived medium that facilitates the process decomposition of the waste. Said vacuum pump (6) is regulated by the vacuum gauge (Cb) that allows the initiation of decomposition process only after the vacuum reaches 600 - 700 mm Hg. The infrared heaters (5) are present inside pyrolysis chamber (1) rises the temperature of the pyrolysis chamber (1) preferably in the range of 850-1100°C that completely burns the waste and converts the waste into non-toxic gases and residual gases with negligible ashes as the byproduct in the decomposition process, the produced ashes are rich in silica hence are further reused commercially. Said infrared heaters are regulated by said temperature sensor (Cc) that senses if the temperature rises above 1100°C and switches off said infrared heaters (5) to protect and ensure long shelf life of the pyrolysis chamber (1)
The first outlet (7a) present at the bottom of the pyrolysis chamber (1) removes the ashes formed as byproduct during the decomposition process. Simultaneously the non-toxic and residual gases emitted during the process of decomposition in the pyrolysis chamber (1) are extracted from the second outlet (7b) by the negative pressure of the exhaust blower (9) and conveyed to the buffer tank (8b) of said emission control unit (8). The emission control unit (8) purifies the gases before releasing them in environment. Said emission control unit (8) comprises of: o Scrubber (8a), o Buffer tank (8b), o Third outlet (7c) o Water sprinklers (8c), o Water circulation Tank (8d) o Water circulation pump (8e), o Gas Filter (8f), o Exhaust blower (9), o Chimney (10), o Emission monitoring device (12) and, o probe (13)
The buffer tank (8b) on one end is connected to the second outlet (7b) and on the other end is connected to the scrubber (8a). Said buffer tank (8b) receives hydrocarbon rich gases and condense these gases to form bio oil. Thus formed hydrocarbon rich bio oil is collected from the present device (P) through the third outlet (7c) that is present at the bottom of the said buffer tank (8b). Said buffer tank (8b) conveys the gases to the scrubber (8a). The scrubber (8a) is a unit that purifies gases by removing the impurities dissolved in the residual gases. Said scrubber (8a) is connected to the buffer tank (8b) and gas filter (8f). Said scrubber (8a) comprises of water sprinklers (8c) that sprinkles water while the gases are scrubbed to remove impurities from the gases. Said water sprinklers (8c) receives water from water circulation tank (8d). The water circulation tank (8d) circulates water with the help of water circulation pump (8e). Said water circulation tank (8d) circulates the water multiple times in the scrubber (8a) before collecting the waste water. The processed residual gases present in the scrubber (8a) are thereafter sent to the Gas filter (8f) for further purification.
The non-toxic gases and the purified residual gases from the gas filter (8f) are extracted from the emission control unit (8) and conveyed to chimney (10) with the help of the exhaust blower (9). Said chimney receives the purified gases and conveys them out of the present device (P). Said chimney (10) on one end is connected to the exhaust blower (9) and on the other end is connected to the emission monitoring device (11). A probe (12) is inserted in said chimney (10) that analyses the toxicity of gas and sends the data to the emission monitoring device (11). The emission monitoring device (11) on one end is connected to the chimney (10) and on the other end is connected to the control unit (C). Said emission monitoring device (11) receives data from probe (12) and utilizes that data to set the air pollution control parameters and monitor the emission of the gases through the chimney (10). Thus the present device (P) is environment friendly as it ensures only non-toxic harmless gases are released into the environment.
WORKING OF THE PRESENT INVENTION:
The present device (P) provides a waste decomposition device that is suitable for treating biodegradable, non-biodegradable, biomedical and chemical waste. Said device eliminates the generation of ashes as the byproduct of the waste treatment. Further the gases produced in the present invention are non-toxic and thus are released into the environment.
Referring to fig. 1, the waste is fed in the present device through said feeder (F). Said feeder (F) conveys the waste to said shredder (4a) for crushing and shredding of waste to small sized particles. Shredding of waste escalates the speed of decomposition and increases the amount of waste that is treated in one cycle, thus providing an energy efficient device. Shredded waste is sent to the top tank (4) through first knife gate valve (2a) with the help of gravity, meanwhile the second knife gate valve (2b) and third knife gate valve (2c) are kept closed to prevent the transfer of the waste to the pyrolysis chamber (1). Said second knife gate valve (2b) and third knife gate valve (2c) are synchronized and work on shutter mechanism. Upon receiving waste from said top tank (4) said second knife gate valve (2b) and third knife gate valve (2c) open and transfers the waste to the pyrolysis chamber (1) through the cooling piece (3) with the help of gravity. Therefore, gravity facilitates the transfer of the waste from top tank (4) pyrolysis chamber (1), thereby the present invention eliminates the use of external power supply to transfer the waste for treatment, and hence the present invention is energy efficient. The cooling piece (3) is heat resistant and extracts heat coming from the pyrolysis chamber (1) and protects the second knife gate valve (2b) and third knife gate valve (2c). Thus increases the shelf life of the second knife gate valve (2b) and third knife gate valve (2c).
Once the pyrolysis chamber (1) gets full after receiving waste from top tank (4), said second knife gate valve (2b), and the third knife gate valve (2c) are closed that halts the feeding of waste into the present device (P). Subsequently vacuum is created in said pyrolysis chamber (1), with the help of vacuum pump (6). The decomposition process begins after the vacuum in the pyrolysis chamber (1) reaches 600 - 700 mm Hg as indicated by Vacuum Gauge (Cb). Said vacuum gauge (Cb) shows negative pressure developed inside the said pyrolysis chamber (1) and thus helps in maintaining vacuum. Said top tank (4) and the knife gate valve are shut close till the decomposition process ends, thus the present device (P) ensure that the vacuum is maintained during the process of decomposition and facilitates the combustion of waste.
Simultaneously temperature is raised in the present pyrolysis chamber (1) preferably in the range of the 850-1100°C with the help of infrared heaters (5) ensuring complete combustion of the waste material. The temperature in the pyrolysis chamber (1) is regulated by said temperature sensors (Cc) that switches off the infrared heaters (5) when the temperature exceeds 1100°C, thus preventing the damage of pyrolysis chamber (1) and ensuring long shelf life of the pyrolysis chamber (1). Since the process takes place in high temperature and oxygen starved medium, the waste is burned completely and produce non-toxic gases and negligible amount or of ashes as by product.
The ashes produced as the byproduct are removed from the present device (P) through the first outlet (7a) present at the bottom of the pyrolysis chamber (1). The nontoxic gases being light in weight are extracted out of the pyrolysis chamber (1) and conveyed to the emission control unit (8) that emits the nontoxic gases out of the present device (P). However the residual gases are heavy due to the presence of impurities and thus are extracted out of the pyrolysis chamber (1) by the negative pressure of the Exhaust blower (9) and conveyed to the buffer tank (8b) of said emission control unit (8) for purification.
Said buffer tank (8b) condenses the emitted gases and convert them into bio oil that is collected from the present device through the third outlet (7c) present at the bottom of the buffer tank (8b). Said buffer tank conveys the remaining residual gases to the scrubber for the purpose of purification. Said scrubber (8a) comprises of water sprinklers (8c) that sprinkles water during the scrubbing of residual gases thus separating solid impurities from the residual gases before passing the gases through said gas filter (8f) and releasing them into the environment. Said water sprinklers (7c) receives water from water circulation tank (8d). Said water circulation tank (8d) circulates water multiple times in the scrubber (8a) with the help of water circulation pump (8e) before collecting the waste water. Hence processed residual gases are sent to the gas filter (8f) that filters and removes traces of toxicity in the gases, thus gases are filtered and processed multiple times before being emitted out of the present device (P).
The purified residual gas thereafter is extracted out gas filter (8f) through said exhaust blower (9) and conveyed to the chimney (10) for emission. The probe (13) is present inside the chimney (10) that analyses the toxicity and the content of the gases, and sends the data to the said emission monitoring device (12) to set the air pollution control parameters and monitor the emission of the gases through the chimney (10). Thus the present device (P) ensures only non-toxic harmless gases are released into the environment. Table 1- comparative study between waste management/treatment between landfill, present infrared pyrolysis.
Figure imgf000018_0001
Table-1 shows a comparison study between landfills and present infrared pyrolysis utilized for waste management. In the said table it is clear that even though the no energy is consumed in waste treatment and the process of waste management is cheap in landfills however such landfills cover large areas and result in land degradation and make the land infertile and contaminate the land. Conversely, the present device utilizes 0.30 - 0.33 KW/Kg of energy to treat 1kg of waste. In addition the present device has no effect on the land where the waste management takes place. Further the present device produces negligible by- product in the form of ashes that are rich in silica and thus utilized commercially.
Also in the present device the waste is managed in de-centralized form that ensures clean environment by reducing the quantity of waste as byproduct.
Table-2 comparative study between waste treatment between plasma pyrolysis and present infrared pyrolysis.
Figure imgf000019_0001
Table-1 shows a comparison between plasma pyrolysis device and present device.
Said table shows the energy consumed in treating 1kg of waste reduces substantially to 0.30 - 0.33 KW/Kg (present device). In addition the present invention utilizes temperature 1100°C to provide the required results. Further the present device is continuous feeding device due to which it isn't interrupted by the completion of separate batches, thus increases the efficiency of the device and reduces the time taken by the present device to treat waste. It is also clear from the table that in the present invention the waste is managed in decentralized manner that reduces the byproduct produced and ensures clean environment, that plasma pyrolysis device fails to provide. Also the present invention is cost effective and is easy to handle.
ADVANTAGES OF INVENTION:
• The present invention provides a waste decomposition system that is suitable to treat biodegradable, non-biodegradable, biomedical and chemical hazardous waste.
• The present invention utilizes infrared heating for the decomposition process, thus facilitates flameless burning of the waste and eliminates the production of the harmful ashes as the by product.
• The present invention utilizes infrared heating for the decomposition process that releases non-toxic gases as the end product in the present system.
• In present invention oxygen is supplied periodically that ensures complete combustion of waste.
• The Infrared heaters in the present device transfers heat only to the objects it strikes, thus reducing the heat loss.
• The use of the vacuum along with Infrared heaters also helps to reduce energy consumption and increase combustion percentage, to ensure maximum combustion efficiency.
• The ashes produced as the byproduct of the present invention are rich in silica and thus utilized commercially. • The present device s user-friendly.
• The present invention is eco-friendly and energy efficient.

Claims

I Claim:
1. A waste decomposition device (P), wherein said device comprises:
• A Processing unit (PU),
• An emission control unit (8),
• A Control unit (C),
Said processing unit (PU) connected to the emission control unit (8) and the control unit (C) is configured to process and decompose the waste; said emission control unit (8) is configured to emit the nontoxic gases out of the emission control unit (8); said control unit (C) is configured to control the waste decomposition, monitoring temperature, vacuum and emission of nontoxic gases of device (P).
2. The waste decomposition device (P) as claimed in claim 1, wherein said processing unit (PU) comprises:
• A feeder (F)
• A Pyrolysis chamber (1)
• A First knife gate valve (2a)
• A Second knife gate valve (2b)
• A Third knife gate valve (2c)
• A Cooling piece (3),
• A Top tank (4),
• A Shredder (4a),
• Plurality of Infrared heaters (5),
• A Vacuum pump (6),
• A first outlet (7),
• A second Outlet (7b)
• A vacuum gauge (Cb) and,
• A temperature sensor (Cc); Said feeder (F) is connected to the shredder (4a) and is the input for the waste; said shredder (4a) connected to the feeder (F) and First knife gate valve (2a)) is configured to shred the input waste and pass to the top tank (4) through a First knife gate valve (2a); said top tank (4) on one end is connected to First knife gate valve (2a) and on other end is connected to Second knife gate valve (2b) and is configured to hold the waste increasing the surface area to hold the waste; said Third knife gate valve (2c) is connected to the Second knife gate valve (2b) and pyrolysis chamber (1); said pyrolysis chamber (1) comprising of first outlet (7) is provided to process and decompose the waste; said plurality of infrared heaters (5) configured in the pyrolysis chamber (1) facilitates heating of the waste at controlled temperature regulated by said temperature sensor (Cc) ; said vacuum pump (6) connected to said vacuum gauge (Cb) is configured to create vacuum in pyrolysis chamber (1) and create oxygen deprived medium; said cooling piece (3) mounted over the pyrolysis chamber (1) regulates the temperature of the processing unit (PU) above pyrolysis chamber(l); said first outlet (7) is the outlet configured to remove the ashes from the present device(P); said second outlet is the outlet configured to transfer the emitted gases to the emission control unit (8).
3. The waste decomposition device (P) as claimed in claim 1, wherein said emission control unit (8) comprises;
• A scrubber (8a),
• A Buffer tank (8b),
• A third outlet (7c)
• Plurality of Water sprinklers (8c),
• A Water circulation Tank (8d)
• A Water circulation pump (8e),
• A Gas Filter (8f);
• An Exhaust blower (9), A Chimney (10),
An Emission monitoring device (11),
A probe (12),
Said buffer tank (8b) connected to a scrubber (8a) and second outlet (7b) and third outlet (7c) is configured to receive the emitted gases from processing unit (PU) and condense emitted gases forming bio oil; said third outlet (7c) is configured to collect the bio oil from buffer tank (8b); said scrubber (8a) comprising of plurality of water sprinklers (8c) is configured to collect and scrub the residual gases collected from buffer tank (8b) removing dissolved solids; said water circulation tank (8d) connected to the water circulation pump (8e) and scrubber (8a) is configured to provide the water to the water sprinklers (8c) in scrubber (8a); said Gas Filter (8f) connected to the scrubber at one end and Exhaust blower (9) at other is configured to purify the gases emitted from scrubber (8a); said Exhaust blower (9) connected Gas Filter (8f) and chimney (10) through Emission monitoring device (11) is configured to create the negative pressure and emit the gases out the system (P) through chimney (10); said chimney comprises of a probe (12) to analyse the emitted gases and send data of emitted gases to Emission monitoring device (11); said Emission monitoring device(ll) configured to monitor the emitted gases is controlled by the control unit (c).
4. The waste decomposition device (P), as claimed in claim 1 to 3; wherein the value of vacuum generated in said pyrolysis chamber (1) is in range 600-700 mm Hg.
5. The waste decomposition device (P), as claimed in claim 1 to 4; wherein the temperature of the pyrolysis chamber (1) is in the range 850-1100°C.
PCT/IN2023/050441 2022-05-18 2023-05-07 A waste decomposition device WO2023223339A1 (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1934391B (en) * 2004-03-19 2011-06-29 Peat国际公司 Method and apparatus for treating waste

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1934391B (en) * 2004-03-19 2011-06-29 Peat国际公司 Method and apparatus for treating waste

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