Organic garbage volume reduction device for magnetic energy

Abstract

An organic garbage volume reduction device for magnetic energy is characterized in that a heating body in an oxygenating heating chamber in a volume reduction furnace heats and decomposes organic matters in a volume reduction combustion chamber above the oxygenating heating chamber, the heating temperature of the heating body is 300-400 DEG C, and the oxygenating heating chamber and the volume reduction combustion chamber are separated through a grid mesh plate; a smoke outlet is formed in the top of the volume reduction furnace and connected with a smoke high-temperature treatment chamber through a pipeline, the heating temperature ranges from 800 DEG C to 1000 DEG C, an outlet of the smoke high-temperature treatment chamber is connected with a smoke cooling tower through a pipeline, an induced draft fan is arranged at an outlet below the smoke cooling tower, and smoke enters a waste gas adsorption device through a pipeline to be adsorbed and purified and then is exhausted. Organic components in the garbage are decomposed through low-temperature oxygen-deficient combustion, after the obtained flue gas is subjected to high-temperature-low-temperature cooling treatment, generation of combustion dioxin can be inhibited, finally, the waste gas can be directly discharged after being adsorbed and purified, and adverse effects on the environment cannot be caused. And external energy input is not needed in the whole device operation process, continuous and independent operation can be achieved through self heat power generation, and the integration degree is high.

Description

Technical Field

[0001] The invention relates to the technical field of environmental protection equipment for solid waste treatment, and in particular to an organic waste volume reduction device for magnetic energy. Background Art

[0002] Solid waste is the main form of urban life and industrial production waste. In the process of solid waste treatment, a large amount of space is required, and landfill also requires a large amount of landfill space. Usually, solid waste is transported to a waste incineration plant for incineration, and the organic components are burned into gas. The inorganic ash left behind only accounts for less than 20% of the original solid waste volume, greatly reducing the weight and volume that needs to be landfilled. The heat from combustion can be used industrially, thereby realizing its energy and resource utilization. The volume reduction and amount reduction effects are obvious, the processing speed is fast, and long-term storage is not required, saving land resources.

[0003] In the traditional process of garbage incineration, a large amount of dioxins are easily produced. Dioxins usually refer to a group of polychlorinated planar aromatic compounds with similar structures and physical and chemical properties. They belong to the class of chlorinated oxygen-containing tricyclic aromatic compounds, including 75 polychlorinated dibenzo-p-dioxins and 135 polychlorinated dibenzofurans. They have multiple toxic effects, including extremely strong carcinogenicity and extremely low-dose environmental endocrine disruption. They have serious adverse effects on the natural environment, and dioxins are extremely difficult to metabolize and eliminate after being deposited in the human body, which seriously endangers human health.

[0004] In atoms, molecules or ions with unpaired electrons, the orbital motion and spin motion of the unpaired electrons give them magnetism. This property is called paramagnetism, and materials with paramagnetism are called paramagnets. Paramagnets have a small magnetic susceptibility, that is, paramagnetic materials have a very weak magnetic response to magnetic fields. Generally speaking, except for metal substances, paramagnetism is related to temperature. Since the collision caused by thermal agitation will affect the neat arrangement of magnetic moments, the higher the temperature, the weaker the paramagnetism; the lower the temperature, the stronger the paramagnetism. There are two unpaired single electrons in the oxygen O2 molecule, which is a typical paramagnetic gas.

[0005] Relevant existing literature on decomposition of organic matter in waste in anoxic environment and volume reduction of waste incineration using magnetized air was retrieved:

[0006] 1. An oxygen-deficient thermal decomposition treatment device for domestic waste and its use method; Application number: CN201911004159.X; Applicant: Yunnan Jinye Ecological Construction Group Co., Ltd.; Yunnan Development Planning and Design Institute; Abstract: An oxygen-deficient thermal decomposition treatment device for domestic waste and its use method, a smokeless incinerator, a magnetic heat treatment device, and an activated carbon adsorption layer are arranged in sequence from bottom to top, and a shell covering is arranged on the outside, and a chimney is arranged on the upper end of the shell; the lower end of the smokeless incinerator is an ash chamber. A small amount of air is passed through the pyrolysis furnace, so that the combustibles in the solid waste to be treated are pyrolyzed and burned under the condition of lack of oxygen in the furnace, and the heat generated causes the organic matter in the solid waste to be continuously thermally decomposed. The flue gas generated by pyrolysis contains components such as CO, CxHy, etc. The pyrolysis flue gas enters the flue gas magnetic decomposition zone and is strongly mixed with the appropriate amount of air entering to decompose into CO2 and H2O. When the pyrolysis is started normally, the oxygen-deficient environment in the pyrolysis chamber is maintained, so that the pyrolysis gasification can be achieved below 300°C, which can avoid the production of dioxins. The pyrolysis process does not require any energy, which is a new environmentally friendly and energy-saving technology.

[0007] 2. A garbage incinerator; Application number: CN201220445186.8; Applicant: Zheng Weiming; Abstract: A garbage incinerator. The garbage incinerator includes a furnace body, a garbage inlet is provided on the side wall of the furnace body, a smoke exhaust port is provided on the upper part of the furnace body, an incineration chamber is provided in the furnace body, and the incineration chamber is located below the garbage inlet. It also includes at least one magnetizer for magnetizing the air in the furnace body. Although oxygen is a molecule with an even number of electrons, it still has a stable inherent magnetic moment and is a paramagnetic substance with a large magnetic susceptibility. The activation energy of oxygen in the air magnetized by the magnetizer is greatly improved. In this way, the amount of air used for incineration of garbage can be reduced, thereby reducing the dust and harmful gases generated by incineration, and achieving the purpose of environmental protection. The magnetizer can also magnetize the garbage, reduce the intermolecular cohesion of the organic components in the garbage, improve the effect of pyrolysis, and enable the garbage to be incinerated more fully, reducing the generation of harmful gases.

[0008] The above-mentioned patent disclosures mention the idea of ​​using low-temperature, oxygen-deficient conditions to decompose organic matter in garbage to inhibit the production of dioxins, which can effectively inhibit the production of dioxins. However, it has not yet achieved the technical effect of heat energy circulation in the process of garbage combustion and volume reduction. Summary of the invention

[0009] The utility model provides an organic waste volume reduction device for magnetic energy, which reduces the volume of organic components in the waste by low-temperature oxygen-deficient combustion, and suppresses the generation of combustion dioxins after the obtained flue gas is subjected to high-temperature-low-temperature cooling treatment. Finally, the waste gas can be directly discharged after being purified by adsorption, and will not cause adverse effects on the environment. In addition, no external energy input is required during the operation of the entire device, and it can continue to operate independently through its own heat power generation, with a high degree of integration.

[0010] The technical solution of the present invention is achieved in this way:

[0011] An organic waste volume reduction device for magnetic energy, wherein a heating body in an oxygenated heating chamber in the volume reduction furnace heats and decomposes organic matter in an upper volume reduction combustion chamber, the heating temperature of the heating body is 300-400°C, and the oxygenated heating chamber and the volume reduction combustion chamber are separated by a grid plate; a smoke outlet is arranged on the top of the volume reduction furnace, connected to a smoke high-temperature treatment chamber through a pipeline, the heating temperature is 800-1000°C, the outlet of the smoke high-temperature treatment chamber is connected to a smoke cooling tower through a pipeline, an induced draft fan is arranged at the lower outlet of the smoke cooling tower, and the smoke enters a waste gas adsorption device through the pipeline for adsorption and purification and then is discharged.

[0012] A steam generating device is arranged in the reduced volume combustion chamber, and the steam outlet is connected to the steam power generation equipment through a pipeline; a steam generating device is also arranged in the flue gas cooling tower, and the generated steam is connected to the steam power generation equipment through a pipeline at the top; the electric energy generated by the steam power generation equipment is supplied to the heater in the oxygenation heating chamber for heating.

[0013] A circulating fan is arranged in the reduced-volume combustion chamber.

[0014] A magnetized oxygen device is installed on the air inlet pipe of the oxygenating and heating chamber.

[0015] A waiting treatment chamber is arranged on the top of the volume reduction furnace, and the bottom of the treatment chamber is connected to the volume reduction combustion chamber through a movable plate; the bottom of the oxygen-filled heating chamber is a grid plate, and an ash chamber is below the grid plate.

[0016] A plurality of activated carbon adsorption layers are arranged in the exhaust gas adsorption device.

[0017] Here’s how it works:

[0018] After the garbage organic matter enters the reduced volume combustion chamber, a limited amount of oxygen is introduced into the intake pipe of the oxygenated heating chamber for oxygen-deficient low-temperature combustion. Temperature and oxygen are important factors in the formation of dioxins. It has been confirmed that dioxins will not be generated in large quantities at temperatures below 250°C. After the air (oxygen) introduced from the intake pipe is magnetized by a permanent magnet of 30,000-40,000 Gauss, an ionized gas, i.e., plasma, is formed at 300°C in the heating chamber. Positively charged ions and negatively charged electrons fill the heating chamber and the reduced volume combustion chamber above. The charged ions come into contact with the carbon-containing organic matter and undergo a violent thermal decomposition reaction. After the negative ions react with the harmful substances, the harmful substances are stabilized in the furnace ash and fall into the ash chamber below for solidification.

[0019] The heaters in the oxygenated heating chamber are several electric heating coils, which generate electricity using the electricity provided by the steam power generation equipment. A temperature sensor is installed in the oxygenated heating chamber to monitor the temperature in the heating chamber and keep it constant. A circulating fan is installed in the reduced volume combustion chamber. The circulating fan forms circulating air in the reduced volume chamber to make the temperature in the reduced volume chamber consistent. At the same time, it also accelerates the contact reaction between the magnetized oxygen and the organic matter, and speeds up the decomposition reaction. An annular steam generating device is installed on the inner side of the furnace wall in the reduced volume combustion chamber. The heat generated by the combustion of garbage organic matter is used to heat cold water, forming a large amount of water vapor that is transported to the steam power generation equipment through pipelines for power generation.

[0020] A small amount of dioxin enters the flue gas high temperature treatment chamber from the top pipe. The temperature of the high temperature treatment chamber is controlled at 800-1000℃, or even higher. The purpose is to use high temperature to decompose dioxin in the flue gas. The residence time of flue gas in the high temperature treatment chamber is controlled to be more than 10s. Several electric heating tubes are evenly distributed in the high temperature treatment chamber in the vertical direction. The electricity of the electric heating tubes can be generated by steam power generation equipment.

[0021] After passing through the high-temperature treatment chamber, the flue gas enters the flue gas cooling tower for rapid cooling to below 200°C to avoid the temperature zone of 300°C where dioxins are violently formed. The flue gas in the cooling tower flows downward through dense copper coils, quickly transferring heat to the cooling water around the coils. The cooling water is heated to form water vapor, which is transported to the steam power generation equipment through pipes for power generation.

[0022] An induced draft fan is installed at the outlet at the bottom of the cooling tower to pass the cooled flue gas into the exhaust gas adsorption device. The activated carbon in the adsorption device purifies the residual organic gas in the flue gas through its microporous structure and strong adsorption capacity. The clean air can be discharged to the outside, and the adverse impact on the atmospheric environment is minimized.

[0023] Advantages of this utility model:

[0024] The present invention is different from the traditional high-temperature garbage incinerator. It uses low-temperature heating + magnetized oxygen to decompose and reduce the volume of garbage organic matter, control the generation of dioxins, and then the flue gas is subjected to subsequent treatment of high-temperature decomposition + rapid cooling, which greatly reduces the probability of dioxin formation, thereby achieving the effect of zero dioxin emission; the garbage organic matter to be decomposed can be plastic products, paper garbage, wood garbage, dried livestock manure, dried food residues, husks, etc.

[0025] The processing equipment of the present invention utilizes the heat generated by the equipment itself to generate steam for power generation for the equipment itself, does not require external energy input, saves energy and reduces emissions, and can operate independently without external energy supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0027] Explanation of the numbers in the figure: 1. Volume reduction furnace; 11. Processing chamber; 12. Volume reduction combustion chamber; 13. Oxygenation heating chamber; 14. Magnetized oxygen device; 15. Ash chamber; 16. Steam generating device; 17. Circulating fan; 2. Flue gas high temperature treatment chamber; 3. Flue gas cooling tower; 31. Induced draft fan; 4. Waste gas adsorption device; 5. Steam power generation equipment. DETAILED DESCRIPTION

[0028] Example 1

[0029] An organic waste volume reduction device for magnetic energy, wherein a heating body in an oxygenated heating chamber 13 in a volume reduction furnace 1 heats and decomposes organic matter in an upper volume reduction combustion chamber 12, the heating temperature of the heating body is 350°C, the flue gas temperature in the furnace is 180-230°C, and the oxygenated heating chamber 13 and the volume reduction combustion chamber 12 are separated by a grid plate; a flue gas outlet is arranged at the top of the volume reduction furnace 1, and is connected to a flue gas high-temperature treatment chamber 2 through a pipeline, the heating temperature is 800-1000°C, the outlet of the flue gas high-temperature treatment chamber 2 is connected to a flue gas cooling tower 3 through a pipeline, an induced draft fan 31 is arranged at the lower outlet of the flue gas cooling tower 3, and the flue gas enters an exhaust gas adsorption device 4 through a pipeline for adsorption and purification before being discharged;

[0030] The overall inner cavity dimensions of the volume reduction furnace are: 1500mm wide, 2300mm high, and 1500mm long; the heater power of the oxygen-filled heating chamber is 10.6KW, the single furnace volume is about 4m³, and the complete processing time of a single furnace is 6-8h.

[0031] A steam generating device 16 is arranged in the reduced volume combustion chamber 12, and the steam outlet is connected to the steam power generation equipment 5 through a pipeline; a steam generating device is also arranged in the flue gas cooling tower 3, and the generated steam is connected to the steam power generation equipment 5 through a pipeline at the top; the electric energy generated by the steam power generation equipment 5 is supplied to the heater in the oxygenation heating chamber 13 for heating; the steam pressure generated in the reduced volume combustion chamber 12 and the flue gas cooling tower is 0.3-0.5MPa, and the amount of supplementary cold water is 7-10L / h.

[0032] A circulating fan 17 is arranged in the reduced volume combustion chamber 12;

[0033] A magnetized oxygen device 14 is installed on the air inlet pipe of the oxygenation and heating chamber 13; the magnetic force of the magnetization device is 30,000 Gauss;

[0034] The top of the volume reduction furnace 1 is provided with a waiting treatment chamber 11, and the bottom of the treatment chamber 11 is connected to the volume reduction combustion chamber 12 through a movable plate; the bottom of the oxygenated heating chamber 13 is a grid plate, and below the grid plate is an ash chamber 15;

[0035] The exhaust gas adsorption device 4 is provided with a plurality of activated carbon adsorption layers.

[0036] Application examples:

[0037] Example 1: Burning urban domestic garbage, and then taking samples of the exhaust gas for testing, the following test results were obtained: Sampling the flue gas at the outlet of the induced draft fan, the sampling volume is 2.2341m³:

[0038]

[0039] Note: When the measured concentration is lower than the detection limit, the toxic equivalent concentration is calculated as 1 / 2 of the detection limit.

[0040] According to the published draft of the national standard GB18484-2020, the limit value for dioxins is 0.5 (ngTEQ / Nm³); the TEQ of the total amount of dioxins in the present invention is 0.00628 ng / m³;

[0041] It can be seen from the above that before being filtered by the exhaust gas adsorption device, the dioxins contained in the flue gas are already far below the national standard limit, proving that the amount of dioxins generated in the volume reduction process of the present invention is extremely low.

Claims

1. An organic waste volume reduction device for magnetic energy, characterized in that: The heating body in the oxygenated heating chamber (13) in the volume reduction furnace (1) heats and decomposes organic matter in the volume reduction combustion chamber (12) above. The heating temperature of the heating body is 300-400° C. The oxygenated heating chamber (13) and the volume reduction combustion chamber (12) are separated by a grid plate. A flue gas outlet is arranged at the top of the volume reduction furnace (1) and is connected to the flue gas high temperature treatment chamber (2) through a pipeline. The heating temperature is 800-1000° C. The outlet of the flue gas high temperature treatment chamber (2) is connected to the flue gas cooling tower (3) through a pipeline. An induced draft fan (31) is arranged at the outlet below the flue gas cooling tower (3). The flue gas enters the exhaust gas adsorption device (4) through the pipeline, is adsorbed and purified, and then discharged.

2. The organic waste volume reduction device for magnetic energy according to claim 1, characterized in that: A steam generating device (16) is arranged in the reduced volume combustion chamber (12), and a steam outlet is connected to a steam power generation device (5) via a pipeline; a steam generating device is also arranged in the flue gas cooling tower (3), and the generated steam is connected to the steam power generation device (5) via a pipeline at the top; the electric energy generated by the steam power generation device (5) is supplied to the heater in the oxygenation heating chamber (13) for heating.

3. The organic waste volume reduction device for magnetic energy according to claim 1 is characterized in that: A circulating fan (17) is arranged in the reduced-volume combustion chamber (12).

4. The organic waste volume reduction device for magnetic energy according to claim 1 is characterized in that: A magnetized oxygen device (14) is installed on the air inlet pipe of the oxygen-filled heating chamber (13).

5. The organic waste volume reduction device for magnetic energy according to claim 1 is characterized in that: The top of the volume reduction furnace (1) is provided with a treatment chamber (11), and the bottom of the treatment chamber (11) is connected to the volume reduction combustion chamber (12) via a movable plate; the bottom of the oxygen-filled heating chamber (13) is a grid plate, and below the grid plate is an ash chamber (15).

6. The organic waste volume reduction device for magnetic energy according to claim 1, characterized in that: A plurality of activated carbon adsorption layers are arranged in the exhaust gas adsorption device (4).

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