CN211176816U - A return heat energy utilization type combined waste pyrolysis treatment station - Google Patents

Abstract

The utility model discloses a return formula heat utilization type combination formula rubbish pyrolysis treatment station, including pyrolysis structure, transition structure, purification structure, pipe gas structure, specifically be magnetization pyrolysis furnace body, flue gas pipeline, emergent emission chimney, transition case, heat exchange device, spray set, vertical wet-type electrostatic purification device, draught fan, terminal high catalytic unit, active carbon adsorption chimney, temperature control device. The utility model has the advantages that: the utility model discloses utilize the heat heating gas that rubbish pyrolysis in-process produced, provide catalytic reaction's originated heat energy, utilize the heat energy that rubbish pyrolysis in-process produced, carry out follow-up gas cleaning and handle, through purifying layer upon layer, a lot of pyrolysis to reach cleaner blowdown, the pyrolysis decrement is showing, and filtration, purifying power are strong, and refuse treatment is effectual, and the handling capacity is big, sustainable pyrolysis treatment rubbish, energy saving and emission reduction, green.

Description

A return heat energy utilization type combined waste pyrolysis treatment station

technical field

The utility model relates to the technical field of pyrolysis treatment of garbage, in particular to a combined type waste pyrolysis treatment station of a return type thermal energy utilization type.

Background technique

With the rapid development of urban construction and new rural construction in China, the output of domestic waste is increasing day by day, and the contradiction between waste pollution and the lack of corresponding waste treatment equipment has gradually emerged. Domestic garbage is mainly landfill, incineration and composting. Direct landfill not only consumes a lot of transportation capacity, but also occupies land resources. The infiltration of sewage generated by landfill garbage not only pollutes the environment, but also damages water resources and soil quality, seriously affecting the People's health; using the method of direct incineration in the garbage pond, the harmful flue gas produced is discharged into the air without treatment, which seriously pollutes the atmosphere and produces secondary pollution, especially harmful dioxins such as highly toxic carcinogens. Gas, which endangers people's life safety; while composting treatment has a small processing capacity and low efficiency. Therefore, the development of adaptable, efficient and clean waste treatment technology is the key to solving the current waste problem, and it is also the trend of countries in the world to develop waste treatment technology. In response to the above situation, my country has made long-term and unremitting efforts in scientific research and implementation. In some cities, facilities for incinerating domestic waste and using it for power generation have been established. However, large-scale and advanced domestic waste treatment equipment is basically Although the technology imported from abroad can operate normally, the construction investment is large and the operation cost is high, so it is difficult to be widely promoted. In some areas, due to problems such as untimely treatment, lack of treatment equipment, and backward treatment technology, there are more and more garbage, and the problem of garbage is prominent. Some add coal, oil, steam or biomass to direct incineration in the process of domestic waste treatment, some process domestic waste into charcoal particles, and some use gasifiers to treat waste. These technologies are either too expensive, The operation cost is high, or the technology is immature, the maintenance is difficult, and the normal operation cannot be performed. Therefore, most of the domestic waste in my country still adopts the original treatment method of direct landfill or direct incineration.

Utility model content

In order to solve the problems existing in the above-mentioned background technology, the purpose of the present utility model is to provide a combined waste pyrolysis treatment station of a return type thermal energy utilization type, which uses the heat generated in the waste pyrolysis process to heat, and provides a high-transformation catalytic device for the terminal. It is a waste pyrolysis station for the purpose of energy saving and environmental protection by using the technology of the initial thermal energy of the catalytic reaction to carry out subsequent flue gas purification.

For achieving the above object, the technical scheme of the present utility model is as follows:

A return-type thermal energy utilization type combined waste pyrolysis treatment station, comprising a pyrolysis structure, a transition structure, a purification structure, and a pipe-gas structure, and is characterized in that:

The pyrolysis structure includes a magnetized pyrolysis furnace body. The magnetized pyrolysis furnace body has a polygonal structure and is divided into a furnace body bottom, a furnace body middle, and a furnace body top. The top of the furnace body is provided with a condensing device, a pipeline, and a charging device. A window, a magnetized oxygen supply device and a secondary pyrolysis chamber are arranged on the bottom of the furnace body, and a heat storage pipeline and a heating pipeline are arranged in the middle of the furnace body;

The transition structure includes a transition box and a heat exchange device, and the transition box and the heat exchange device are fixedly connected through pipes;

The purification structure includes spray device, vertical wet electrostatic purification device, terminal high-change catalytic device, activated carbon adsorption chimney; the pipe structure includes flue gas pipeline I, flue gas pipeline II, induced draft fan pipeline, and flue gas pipeline III , emergency discharge chimney; the spray device communicates with the heat exchange device through the flue gas pipeline I, the vertical wet electrostatic purification device communicates with the spray device through the flue gas pipeline II, and the induced draft fan pipeline communicates with the vertical Type wet electrostatic purification device, the terminal high-variable catalytic device is connected with the heating pipeline in the magnetization pyrolysis furnace through the flue gas pipeline III, and the activated carbon adsorption chimney is fixedly connected to the terminal high-variable catalytic device.

Preferably, the feeding window is a window for throwing garbage, the window leaf can be manually opened, closed and removed, and other feeding devices can be connected and installed after the window door is removed.

Preferably, the magnetized oxygen supply device includes a hollow steel pipe, a permanent magnet magnetizer and a regulating turbulence valve, and the hollow steel pipe is deep into the bottom of the furnace body.

Preferably, the secondary pyrolysis chamber is made of a high temperature resistant alloy material, and the temperature range of the secondary pyrolysis is controlled by a temperature control device.

Preferably, the heat exchange device is a hybrid box with a structure with a large heat transfer rate, which is a device for rapid cooling and rapid cooling.

Preferably, the spray device is a hybrid box structure that sprays acid-base solution for washing and purifying functions, and includes a spiral atomizing nozzle and a packing layer.

Preferably, the vertical wet electrostatic purifying device is a new type of dedusting and purifying equipment used to treat trace dust and micro-particles.

Preferably, the terminal high-variable catalytic device is a box-body hybrid structure that plays a catalytic role.

Preferably, the inside of the activated carbon adsorption chimney is filled with coal columnar activated carbon, and a detection window is provided.

beneficial effect

Through the above technical solutions, the utility model provides a combined waste pyrolysis treatment station of return type thermal energy utilization, which controls the temperature of waste pyrolysis by adjusting the gas flow rate entering the magnetized oxygen supply device and controlling the flow rate of the pyrolysis flue gas. The flue gas generated by pyrolysis is condensed by a condensing device to reduce the temperature of the flue gas, so that tar, heavy metal particles, dust and harmful gases are separated to avoid the production of dioxins. After neutralization, filtration and purification by spraying acid-base solution, the flow is diverted from the pipeline into the vertical wet electrostatic device, and the dust, acid mist, heavy metal particles, tar in the wet flue gas are removed under the action of the high-voltage electric field. , odor, PM2.5 and other harmful substances, and the remaining micron oil mist is degraded into carbon dioxide and water by the electric field. At the same time, under the action of the high-voltage electric field, the air in the electric field produces ozone, which removes most of the odor in the flue gas and purifies it. The latter flue gas is then diverted from the pipeline into the heating pipeline located in the magnetization pyrolysis furnace body for preheating, and the heat generated during the waste pyrolysis process is used to heat the gas again to provide the initial thermal energy for the catalytic reaction to the terminal high-variable catalytic device. , the residual carbon, hydrogen and oxygen gases in the flue gas are catalytically converted into water and carbon dioxide through the terminal high-variable catalytic device, and finally the flue gas is discharged by the activated carbon adsorption chimney, in the form of garbage burning garbage, ignited at one time, without adding any auxiliary fuel, after Layer-by-layer purification and multiple pyrolysis to achieve cleaner sewage, significant reduction in pyrolysis, strong filtration and purification capabilities, good waste treatment effect, large processing capacity, sustainable pyrolysis of waste, energy saving and emission reduction, green Environmental friendly.

Description of drawings

FIG. 1 is a schematic structural diagram of a return-type thermal energy utilization type combined waste pyrolysis treatment station disclosed in an embodiment of the present utility model;

FIG. 2 is a schematic diagram of the internal structure of a return-type thermal energy utilization type combined waste pyrolysis treatment furnace disclosed in an embodiment of the present utility model;

FIG. 3 is a schematic diagram of the appearance of a combined type waste pyrolysis treatment furnace of a return type thermal energy utilization type disclosed in an embodiment of the present utility model.

reference number

1- magnetization pyrolysis furnace body, 2- transition box, 3- heat exchange device, 4- flue gas pipeline I, 5- spray device, 6- flue gas pipeline II, 7- vertical wet electrostatic purification device, 8- induced draft fan pipeline, 9- flue gas pipeline III, 10- terminal high-change catalytic device, 11- activated carbon adsorption chimney, 12- emergency discharge chimney, 1-1- feeding window, 1-2- bottom of furnace body, 1-3-The middle of the furnace body, 1-4-The top of the furnace body, 1-5-Magnetized oxygen supply device, 1-6-Condensing device, 1-7-Regenerative pipeline, 1-8-Pipeline, 1-9 - Secondary pyrolysis chamber, 1-10- heating line.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

A return-type thermal energy utilization type combined waste pyrolysis treatment station, comprising a pyrolysis structure, a transition structure, a purification structure, and a pipe-gas structure, and is characterized in that:

The pyrolysis structure includes a magnetized pyrolysis furnace body 1. The magnetized pyrolysis furnace body 1 has a polygonal structure and is divided into a furnace body bottom 1-2, a furnace body middle part 1-3, and a furnace body top 1-4. The furnace body The top 1-4 is provided with a condensation device 1-6, a pipeline 1-8, a feeding window 1-1, and a magnetized oxygen supply device 1-5 and a secondary pyrolysis chamber 1 are provided on the bottom 1-2 of the furnace body. -9, the middle part 1-3 of the furnace body is provided with a heat storage pipeline 1-7 and a heating pipeline 1-10;

The transition structure includes a transition box 2, a heat exchange device 3, and the transition box 2 and the heat exchange device 3 are fixedly connected through pipes;

The purification structure includes a spray device 5, a vertical wet electrostatic purification device 7, a terminal high-change catalytic device 10, and an activated carbon adsorption chimney 11; the pipe structure includes flue gas pipeline I4, flue gas pipeline II6, induced draft fan pipeline 8, Flue gas pipeline III9, emergency discharge chimney 12; the spray device 5 communicates with the heat exchange device 3 through the flue gas pipeline I4, and the vertical wet electrostatic purification device 7 communicates with the spray device 5 through the flue gas pipeline II6 The induced draft fan pipeline 8 is connected to the vertical wet electrostatic purification device 7, and the terminal high-variable catalytic device 10 is connected to the heating pipelines 1-10 in the magnetized pyrolysis furnace body 1 through the flue gas pipeline III9, The activated carbon adsorption chimney 11 is fixedly connected to the terminal high-variable catalytic device 10 .

The working principle of the combined waste pyrolysis treatment station of the return type thermal energy utilization type of the present invention is as follows: the waste after simple sorting is transported into the magnetized pyrolysis furnace body 1 through the feeding window 1-1 for pyrolysis, The necessary gas in the pyrolysis process is provided by the magnetized oxygen supply device 1-5. The harmful gas and water vapor generated by the pyrolysis enter the pyrolysis flue gas condensing device 1-6 through the gas outlet pipe to make the tar and heavy metal particles in the pyrolysis flue gas. , dust and harmful gases are separated to complete a purification; then enter the heat storage pipeline 1-7 to continue to use the high temperature heating in the furnace body, the emergency discharge chimney 12 is normally closed, only open when necessary, and set a high temperature resistant material sealing valve, The flue gas is deflected upward through the pipeline 1-8 and enters the secondary pyrolysis chamber 1-9 for high-temperature treatment. The secondary pyrolysis chamber 1-9 is located in the bottom 1-2 of the furnace body, and the heat generated during the pyrolysis of the waste is removed. The heat storage pipelines 1-7 and the secondary pyrolysis chambers 1-9 are absorbed and reused. After the flue gas is subjected to high temperature treatment in the secondary pyrolysis chambers 1-9, it enters the heat exchange device 3 through the transition box 2 for rapid cooling and rapid cooling, and then passes through the smoke. The gas pipeline I4 enters the spray device 5, the spray device 5 sprays the acid-base solution, and the incoming low-temperature flue gas is sprayed with the acid-base solution to neutralize, filter and purify to complete the secondary purification; The flue gas enters the vertical wet electrostatic purification device 7 through the flue gas pipeline II6. Under the action of the strong electric field in the vertical wet electrostatic purification device 7, the opacity (turbidity) of the flue gas is reduced, and the dust removal, deodorization, PM2.5 and other harmful substances are purified for the third time; the purified flue gas passes through the induced draft fan pipeline 8 and passes through the heating pipelines 1-10 in the magnetized pyrolysis furnace body 1 to be heated again by the heat generated during the pyrolysis of the waste. , to provide the initial thermal energy of the catalytic reaction for the terminal high-variable catalytic device 10, the residual carbon oxides in the flue gas are converted into water and carbon dioxide, and the fourth purification is completed; clean and harmless water is discharged from the drain at the bottom, and carbon dioxide The gas is discharged through the activated carbon adsorption chimney 11, and the activated carbon in the activated carbon adsorption chimney 11 filters and purifies the exhaust gas again, so that the gas discharged into the atmosphere is harmless and pollution-free, and the fifth purification is completed. The return-type thermal energy utilization type combined waste pyrolysis treatment station disclosed in the utility model makes full use of the thermal energy generated by the pyrolysis to carry out secondary pyrolysis, heats the flue gas, provides catalytic heat energy, and undergoes five purifications to reach the maximum Excellent decontamination effect.

Preferably, the feeding window 1-1 is a window for throwing garbage, the window leaf can be manually opened, closed and removed, and other feeding devices can be connected and installed after the window door is removed.

Preferably, the magnetized oxygen supply device 1-5 includes a hollow steel pipe, a permanent magnet magnetizer and a regulating turbulence valve, and the hollow steel pipe is deep into the bottom 1-2 of the furnace body to provide a gas source for pyrolysis.

Preferably, the secondary pyrolysis chambers 1-9 are made of high temperature resistant alloy materials, and are arranged at the part of the high temperature red carbon layer for waste pyrolysis in the bottom 1-2 of the furnace body, and the continuous baking of the red carbon layer enables the secondary pyrolysis A high temperature space is formed in the cavity of chambers 1-9, and the flue gas is removed by high temperature in the cavity to remove harmful gases in the flue gas, and the secondary pyrolysis temperature range is controlled by a temperature control device.

Preferably, the heat exchange device 3 is a hybrid box with a structure with a large heat transfer rate, and is a device for transferring the heat in the high temperature flue gas to the cold fluid, so as to rapidly cool the flue gas.

Preferably, the spraying device 5 is a hybrid box structure that sprays acid-base solution for washing and purifying functions, and contains a spiral atomizing nozzle and a packing layer, and the flue gas passing through contains sulfur, benzene, nitric acid, Harmful gases such as hydrocarbons are neutralized, filtered and purified by the acid-base solution in the spray device 5, and then eliminated.

Preferably, the vertical wet electrostatic purification device 7 is a new type of dust removal and purification equipment used to treat trace dust and micro particles, mainly used to remove dust, acid mist, heavy metal particles, tar, odor, PM2.5 and other harmful substances, when the flue gas purified by the spray device 5 passes through the high-voltage electrostatic field, under the action of the high-voltage electric field, the fume gas is ionized and the oil mist is charged, most of which can be degraded and carbonized, and a small part of tiny oil particles Under the action of the electric field force of the adsorption electric field and the air flow, the positive and negative plates moving towards the electric field are collected on the plate and flow to the oil collecting pan under the action of their own gravity, and are discharged through the oil discharge channel, and the remaining micron oil mist is removed by the electric field. It is degraded into carbon dioxide and water, and at the same time, under the action of the high-voltage generator, the air in the electric field produces ozone, which removes most of the odor in the flue gas, purifies the flue gas again, and enhances the decontamination effect.

Preferably, the terminal high-change catalytic device 10 is a box-body hybrid structure that plays a catalytic role, so that the carbon oxides remaining in the flue gas are converted into water and carbon dioxide, the water is discharged from the bottom drain, and the carbon dioxide gas is discharged through the activated carbon adsorption chimney 11. , the thermal energy generated by the pyrolysis in the magnetized pyrolysis furnace body 1 provides the initial thermal energy for the terminal high-variable catalytic device 10 .

Preferably, the activated carbon adsorption chimney 11 is filled with coal columnar activated carbon, which has a reasonable pore structure, strong adsorption capacity, easy repeated regeneration, low cost, and can adsorb odorous and toxic harmful gases in the air, especially for Benzene, carbon monoxide, ozone, chlorine, etc. have unique adsorption and purification capabilities, which can remove harmful gases remaining in the flue gas; in order to facilitate the monitoring and detection of the treated gas in the later stage, a detection window is provided.

Finally, it should be noted that the above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. , it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the utility model content within the protection scope of the present utility model.

Claims (9)

1. a return-type thermal energy utilization type combined waste pyrolysis treatment station, comprising a pyrolysis structure, a transition structure, a purification structure, a pipe-gas structure, and is characterized in that: The pyrolysis structure includes a magnetized pyrolysis furnace body (1), the magnetized pyrolysis furnace body (1) is a polygonal structure, and is divided into a furnace body bottom (1-2), a furnace body middle (1-3), and a furnace body top (1-4), a condensing device (1-6), a pipeline (1-8), a charging window (1-1) are arranged on the top of the furnace body (1-4), and a bottom of the furnace body (1-1) is provided. -2) A magnetized oxygen supply device (1-5) and a secondary pyrolysis chamber (1-9) are arranged thereon, and a heat storage pipeline (1-7) and a heating pipe are arranged in the middle part (1-3) of the furnace body Road (1-10); The transition structure includes a transition box (2), a heat exchange device (3), and the transition box (2) and the heat exchange device (3) are fixedly connected through pipes; The purification structure includes a spray device (5), a vertical wet electrostatic purification device (7), a terminal high-change catalytic device (10), and an activated carbon adsorption chimney (11); the pipe structure includes a flue gas pipeline I (4), a smoke pipe Gas pipeline II (6), induced draft fan pipeline (8), flue gas pipeline III (9), emergency discharge chimney (12); the spray device (5) passes through the flue gas pipeline I (4) and the The heat exchange device (3) is communicated, the vertical wet electrostatic purification device (7) is communicated with the spray device (5) through the flue gas pipeline II (6), and the induced draft fan pipeline (8) is communicated with the vertical wet type Electrostatic purification device (7), the terminal high-variable catalytic device (10) is communicated with the heating pipeline (1-10) in the magnetization pyrolysis furnace body (1) through the flue gas pipeline III (9), the The activated carbon adsorption chimney (11) is fixedly connected to the terminal high-variable catalytic device (10). 2 . The combined waste pyrolysis treatment station of a return-type thermal energy utilization type according to claim 1 , wherein the feeding window (1-1) is a window for throwing garbage, and the window blades can be manually opened and closed. 3 . , dismantling, after dismantling the windows and doors, it can be connected to the structure of other feeding devices. 3 . The combined waste pyrolysis treatment station of a return-type thermal energy utilization type according to claim 1 , wherein the magnetized oxygen supply device ( 1 - 5 ) comprises a hollow steel pipe, a permanent magnet magnetizer and an adjusting turbulence device. 4 . Flow valve, the hollow steel pipe goes deep into the bottom (1-2) of the furnace body. 4. The combined waste pyrolysis treatment station of a return type thermal energy utilization type according to claim 1, characterized in that: the secondary pyrolysis chamber (1-9) is made of high temperature resistant alloy material, and the second The secondary pyrolysis temperature range is controlled by a temperature control device. 5. The combined waste pyrolysis treatment station of a return-type thermal energy utilization type according to claim 1, characterized in that: the heat exchange device (3) is a hybrid box with a structure with a relatively large heat transfer rate, Equipment for rapid cooling of quenching. 6 . The combined waste pyrolysis treatment station of a return-type thermal energy utilization type according to claim 1 , wherein the spray device ( 5 ) is a device for washing and purifying the acid-base solution by spraying the acid-base solution. 7 . The hybrid box structure contains a spiral atomizing nozzle and a packing layer. 7 . The combined type waste pyrolysis treatment station according to claim 1 , wherein the vertical wet electrostatic purifying device ( 7 ) is used to treat a small amount of dust and micro-particles. 8 . New dust removal and purification equipment. 8 . The combined waste pyrolysis treatment station of return type thermal energy utilization according to claim 1 , characterized in that: the terminal high-variable catalytic device ( 10 ) is a box-body hybrid structure that plays a catalytic role. 9 . 9 . The combined waste pyrolysis treatment station of a return type thermal energy utilization type according to claim 1 , wherein the activated carbon adsorption chimney ( 11 ) is filled with coal columnar activated carbon, and a detection window is provided. 10 .

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