A distributed organic solid waste treatment device
Through the pyrolysis-chemical chain combustion integration technology, the rotational reaction drum and oxygen carrier are circulated and regenerated to treat organic solid waste, solving the scale and pollution problems of traditional incineration equipment, and achieving low-cost and efficient pollutant removal and energy utilization.
Patent Information
- Application Number
- CN202211014753.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-08-23
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2042-08-23
AI Technical Summary
Traditional centralized incineration equipment is huge, has high operating costs, and is seriously pollutant emissions, making it difficult to effectively apply in areas with dispersed waste sources, small amount of waste and underdeveloped economically.
The pyrolysis-chemical chain combustion integration technology is adopted, and the rotary reaction drum and oxygen carrier are circulated between the fuel reaction chamber and the air reaction chamber to realize the integrated treatment of pyrolysis of organic solid waste and pollutants, and the cycling and regeneration is carried out through the redox reaction of the oxygen carrier, and the heat from the air reaction chamber is used to promote the machine to do work.
It has achieved low pollution and low emission organic solid waste treatment, high pollutant removal efficiency and low operating cost, suitable for remote areas, improving the sustainability and treatment efficiency of the device.
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Figure CN115451410B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of environmental protection and energy utilization technology, and in particular to a distributed organic solid waste treatment device based on pyrolysis-chemical chaining combustion integrated technology. Background Art
[0002] Organic solid waste is ubiquitous in our daily lives. It primarily refers to solid and semi-solid waste generated by human production activities (industrial and agricultural production) and daily life. Due to the continuous development of industrial manufacturing and agricultural production in my country, the output of organic solid waste is increasing daily. The continuous accumulation of organic solid waste not only pollutes the environment but, in severe cases, can also have a certain impact on human health.
[0003] Generally speaking, the treatment process of organic solid waste should be resource-based, harmless and reduced in volume, so its main treatment methods include compaction landfill, composting and centralized incineration. The two treatment methods of compaction landfill and composting not only require a large amount of land resources, but also the odorous substances, high-concentration leachate and greenhouse gases generated by the waste will have a great impact on the surrounding environment. The centralized incineration treatment method is one of the most commonly used methods for treating organic solid waste in my country, and it is also the most extensive and effective disposal method for solid waste. However, traditional centralized incineration equipment is huge, with high initial investment and operating costs. Maintaining normal operation requires a continuous supply of solid waste. The flue gas generated by incineration contains a large amount of toxic and harmful substances such as SO2 and NO2, which can easily pollute the environment. The cost of flue gas treatment after incineration is high, so it is not suitable for use in areas with dispersed waste sources, small waste amounts and underdeveloped economies. Therefore, it is necessary to develop a method and device with low operating costs, which can effectively reduce pollutant emissions and is suitable for areas with dispersed waste sources, small waste amounts and underdeveloped economies.
[0004] Pyrolysis and gasification technology is a novel organic solid waste treatment technology. It involves converting the organic components in solid waste into gases such as H2, CH4, and CO, tar, and residue through thermochemical reactions under specific temperature conditions and in an oxygen-deficient or oxygen-free atmosphere. Compared with traditional centralized incineration, pyrolysis and gasification utilizes a lower air coefficient, significantly reducing smoke emissions and improving energy efficiency. The resulting flue gas is low in harmful gases and contains low levels of pollutants such as heavy metals and dioxins. However, most organic solid waste still contains a high volatile content, which results in the generation of certain harmful substances such as N / S / Cl and tar during the pyrolysis and gasification process, which can have a certain impact on the surrounding environment.
[0005] Chemical Looping Combustion (CLC) technology involves the alternating circulation of an oxygen carrier between a fuel reactor and an air reactor, transferring oxygen from the oxygen carrier and completing the fuel combustion process. In the fuel reactor, the high-valent oxygen carrier undergoes a reduction reaction with the fuel, oxidizing the fuel into CO2 and H2O (gaseous), while the oxygen carrier is reduced to a low-valent state. The reduced low-valent oxygen carrier then enters the air reactor, where it is oxidized by air to form a high-valent oxygen carrier, releasing heat and regenerating the oxygen carrier. In the fuel reactor, by loading the oxygen carrier with a suitable exogenous metal and adjusting the type and amount of metal ions, the integrated removal of tar and N / S / Cl pollutants can be achieved. Compared to traditional incineration, chemical looping combustion effectively reduces the difficulty of pollutant removal. However, the relatively complex composition of organic solid waste can cause sintering and corrosion of the oxygen carrier, reducing the reactivity and service life of the cycle. Using pyrolysis gasification as the pretreatment of organic solid waste and passing the generated flue gas into the chemical chain combustion device can effectively achieve the harmless and resource utilization of organic solid waste. Summary of the Invention
[0006] The purpose of this invention is to overcome the shortcomings and deficiencies of traditional centralized incineration of solid waste in remote areas, and to provide a distributed organic solid waste treatment device based on pyrolysis-chemical chaining combustion integrated technology to solve the problems of traditional centralized incineration, such as large equipment and high waste gas treatment costs.
[0007] To achieve the above object, the technical solution of the present invention is:
[0008] A distributed organic solid waste treatment device comprises a housing, wherein a rotating reaction drum is mounted within the housing; a heat exchange plate is disposed within the housing above the rotating reaction drum, wherein the space formed by the heat exchange plate and the housing serves as a heat exchange chamber; and a space within the housing below the rotating reaction drum serves as a pyrolysis conversion chamber.
[0009] The inner wall of the rotating reaction drum is filled with oxygen carriers; part of the rotating reaction drum is used as a fuel reaction chamber, and part of the rotating reaction drum is used to pass through an air pipeline and serve as an air reaction chamber;
[0010] The pyrolysis conversion chamber is used to perform pyrolysis and combustion on organic solid waste. The exhaust gas containing harmful substances generated during the pyrolysis process is transported to the fuel reaction chamber, reacts with the oxygen carrier in the fuel reaction chamber, and fixes the harmful substances in the exhaust gas in the oxygen carrier. The oxygen carrier in the fuel reaction chamber becomes a low-valent oxygen carrier after reacting with the exhaust gas. The low-valent oxygen carrier enters the air reaction chamber, is oxidized by air in the air reaction chamber to form a high-valent oxygen carrier, and releases heat, completing the regeneration of the oxygen carrier, realizing the cycle of chemical chain combustion;
[0011] Part of the heat released by the air reaction chamber is used to maintain the temperature required by the fuel reaction chamber during the reaction process, and part of the heat passes through the heat exchange chamber and is utilized by the heat exchange chamber.
[0012] Furthermore, an air sweeping zone and an exhaust gas sweeping zone are provided between the fuel reaction chamber and the air reaction chamber. Inert gas is introduced into the air sweeping zone and the exhaust gas sweeping zone through independent pipelines to purge the reaction gas remaining in the oxygen carrier.
[0013] Furthermore, the air cleaning zone uses the introduced inert gas to discharge the air remaining in the oxygen carrier during the reaction process in the air reaction chamber; the exhaust gas cleaning zone uses the inert gas to discharge the exhaust gas remaining in the oxygen carrier during the reaction process in the fuel reaction chamber, and the exhaust gas is transported back to the pyrolysis conversion chamber by the second blower through the pipe connected to the outlet.
[0014] Furthermore, the waste gas after reacting with the oxygen carrier in the fuel reaction chamber becomes clean gas, part of which is discharged and part of which enters the pyrolysis conversion chamber through the flow control valve.
[0015] Furthermore, a layer of heat exchange plate is used to isolate the pyrolysis conversion chamber and the heat exchange chamber; the heat exchange chamber is provided with a water inlet and a water vapor outlet, and heat exchange fins are provided between the water inlet and the water vapor outlet. The heat released by the air reaction chamber evaporates the water added to the water inlet into water vapor through the heat exchange plate, and flows out from the water vapor outlet to drive the machine to do work.
[0016] Furthermore, the inner wall of the rotating reaction drum is provided with a honeycomb dense frame, which is made of quartz sand inert material and has a plurality of holes. Each hole is not connected to each other, forming a single tight channel. The porous combustion rods made of oxygen carriers are inserted into the holes of the frame.
[0017] Furthermore, the rotating reaction drum is driven by a motor and a driving shaft to rotate.
[0018] Furthermore, the outer side of the rotating reaction drum is fixed by a bearing.
[0019] Furthermore, a fuel feed port and a waste outlet are provided in the pyrolysis conversion chamber, a conveyor chain is provided between the fuel feed port and the waste outlet, and an igniter is provided below the conveyor chain; a first blower is also provided in the pyrolysis conversion chamber to guide the pyrolysis waste gas containing harmful substances generated by combustion to the fuel reaction chamber.
[0020] Furthermore, the motor is supported by a motor support plate.
[0021] Compared with the prior art, the present invention has the following beneficial effects:
[0022] The present invention aims to treat organic solid waste based on the integrated technology of pyrolysis and chemical chaining combustion. Compared with traditional centralized incineration equipment, this device uses the low-pollution and low-emission characteristics of chemical chaining combustion to treat the pyrolysis waste gas generated by solid waste on the basis of centralized incineration. It can not only realize the integrated treatment of pollutants, but also treat single pollutants by changing the composition and mass fraction of the oxygen carrier. The oxygen carrier is recycled and regenerated through the redox reaction of the oxygen carrier between the two reaction chambers in the rotating reaction drum, thereby improving the sustainability of the device; the large amount of heat generated in the air reaction chamber during the reaction process can not only maintain the temperature required for the reaction in the reaction chamber, but also evaporate the added water into water vapor through the action of the upper heat exchange plate to drive the machine to do work. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic diagram of the rural solid waste treatment device of the present invention;
[0024] Figure 2 It is a left side structural schematic diagram of the organic solid waste treatment device of the present invention;
[0025] Figure 3 This is a schematic diagram of the reaction chamber structure of the organic solid waste treatment device of the present invention;
[0026] Figure 4 This is a schematic diagram of the structure of the rotary reaction drum portion of the present invention;
[0027] In the figure: 1. Motor; 2. Motor support plate; 3. Drive shaft; 4. Air reaction chamber inlet; 5. First blower; 6. Water vapor outlet; 7. Heat exchange fins; 8. Rotating reaction drum; 9. Fuel reaction chamber; 10. Waste outlet; 11. Air reaction chamber; 12. Conveyor chain; 13. Ignitor; 14. Fuel feed port; 15. Air reaction chamber outlet; 16. Water inlet; 17. Flow control valve; 18. Air cleaning area; 19. Second blower; 20. Heat exchange plate; 21. Waste gas cleaning area. DETAILED DESCRIPTION
[0028] Example:
[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified or limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a signal connection; it can be a direct connection or an indirect connection through an intermediate medium, which can be said to be the internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific circumstances. The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.
[0030] like Figure 1-3 As shown, the distributed organic solid waste treatment device provided in this embodiment mainly includes a cylindrical shell, in which a rotating reaction drum 8 is installed; the space below the rotating reaction drum 8 in the shell is used as a pyrolysis conversion chamber; a heat exchange plate is provided in the shell above the rotating reaction drum 8, and the space formed by the heat exchange plate and the shell is used as a heat exchange chamber, which not only plays the role of fixed interval separation, but also can realize heat exchange with the pyrolysis conversion chamber.
[0031] The inner wall of the rotating reaction drum 8 is filled with an oxygen carrier; part of the rotating reaction drum is used as a fuel reaction chamber 9, and part of it is used to pass through an air duct, serving as an air reaction chamber 11. One end of the air duct is opened as an air reaction chamber inlet 4, and the other end is opened as an air reaction chamber outlet 15. The front and rear ends are opened because the oxidation process of the chemical chain cycle will introduce excessive high-flow air to ensure the complete reaction, and the outlet can collect the remaining air.
[0032] like Figure 3 As shown, the rotary reaction drum 8 is Figure 3 The dotted line portion in the device is not shown, and is a fixed baffle with a similar structure to the front end of the rotating reaction drum 8, which does not rotate with the rotating reaction drum 8. Figure 3 、 4 As shown, the motor drive shaft 3 passes through the fixed baffle and the honeycomb oxygen carrier and is fixedly connected to the oxygen carrier, but not to the baffle (circled part). Figure 4 The insertion position of the drive shaft 3 is shown to be located at the intersection of the two baffles (the circled part and the baffle are both fixed parts, and the drive shaft 3 is placed therein and wrapped by the circled part, but is not fixedly connected thereto).
[0033] The pyrolysis conversion chamber is used to perform pyrolysis and combustion on organic solid waste. The waste gas containing harmful substances generated during the pyrolysis process is transported to the fuel reaction chamber 9, and after reacting with the oxygen carrier in the fuel reaction chamber 9, the harmful substances in the waste gas are fixed in the oxygen carrier. The oxygen carrier in the fuel reaction chamber 9 becomes a low-valent oxygen carrier after reacting with the waste gas. The low-valent oxygen carrier enters the air reaction chamber 11, where it is oxidized by air to form a high-valent oxygen carrier and releases heat, completing the regeneration of the oxygen carrier and realizing the cycle of chemical chain combustion.
[0034] Part of the heat released by the air reaction chamber 11 is used to maintain the temperature required by the fuel reaction chamber 9 during the reaction process, and part of the heat passes through the heat exchange chamber and is utilized by the heat exchange chamber.
[0035] It can be seen that this device, based on centralized incineration, utilizes the low-pollution and low-emission characteristics of chemical chain combustion to treat the pyrolysis waste gas generated by solid waste. It can not only achieve integrated treatment of pollutants, but also realize the recycling regeneration of oxygen carriers through the redox reaction of oxygen carriers between the two reaction chambers in the rotating reaction drum, thereby improving the sustainability of the device; the large amount of heat generated by the air reaction chamber during the reaction process can not only maintain the temperature required for the reaction in the reaction chamber, but can also be used through the heat exchange chamber to drive the machine to do work.
[0036] In a specific embodiment, the heat exchange chamber is provided with a water inlet 16 and a water vapor outlet 6, and several rows of heat exchange fins 7 are provided between the water inlet 16 and the water vapor outlet 6, thereby realizing the function of heat transfer. The heat released by the air reaction chamber 11 causes the water added to the water inlet 16 to evaporate into water vapor through the heat exchange plate and flow out from the water vapor outlet 6 to drive the machine to do work.
[0037] As a preferred embodiment of the present device, an air sweeping zone 18 and an exhaust gas sweeping zone 21 are provided between the fuel reaction chamber 9 and the air reaction chamber 11. Inert gas is introduced into the air sweeping zone 18 and the exhaust gas sweeping zone 21 through independent pipes to purge out the reaction gas remaining in the oxygen carrier, thereby reducing the impact on the regeneration of the oxygen carrier. Specifically, the air sweeping zone 18 uses the introduced inert gas to discharge the air remaining in the oxygen carrier during the reaction process of the air reaction chamber 11; the exhaust gas sweeping zone 18 uses the inert gas to discharge the exhaust gas remaining in the oxygen carrier during the reaction process of the fuel reaction chamber, and is transported back to the pyrolysis conversion chamber by the second blower 19 through the pipe connected to the outlet. In addition, by increasing the flow rate of the inert gas introduced into the exhaust gas sweeping zone, the interaction between the clean gas and the exhaust gas that may exist during the reaction process can be greatly reduced. Since the air reaction chamber 11 has corresponding air pipes and baffle isolation ( Figure 4 Gray part), the cleaning area between the two reaction chambers is also connected with a corresponding ventilation pipe, so that the waste gas containing harmful substances generated during the pyrolysis process can be guided by the blower 5 and transported to the fuel reaction chamber 9 ( Figure 1 The small arrow indicates the direction of exhaust gas flow), so that it will not enter other rooms. Figure 4 As shown, the rotating reaction drum 8 rotates clockwise, and the order of the areas divided by the baffle is the fuel reaction chamber 9-the exhaust gas cleaning area 21-the air reaction chamber inlet 4-the air cleaning area 18. After the low-valent oxygen carrier has reacted completely in the fuel reaction chamber 9, the residual reaction gas is blown away by the exhaust gas cleaning area 21 and then rotates to the air reaction chamber where air is introduced, so as to participate in the reaction with the air in the oxidation stage. The reaction time can be adjusted according to the motor speed as needed.
[0038] In one specific embodiment, the inner wall of the rotating reaction drum is constructed with a dense honeycomb framework made of inert quartz sand, each of which is isolated from the others, forming a single, tightly sealed channel. Oxygen carriers, made of porous combustion rods, are inserted into each of the framework's holes. This design increases the contact area between the oxygen carrier and the exhaust gas, allowing for a full reaction in the fuel reaction chamber. By selecting oxygen carriers with varying compositions and mass fractions, not only can a single pollutant be removed, but also a comprehensive approach can be achieved.
[0039] In a specific embodiment, a fuel feed port 14 and a waste outlet 10 are provided in the pyrolysis conversion chamber, a conveyor chain 12 is provided between the fuel feed port 14 and the waste outlet 10, and an igniter 13 is provided below the conveyor chain 12; a first blower 5 is also provided in the pyrolysis conversion chamber to guide the pyrolysis waste gas containing harmful substances generated by combustion to the fuel reaction chamber 9.
[0040] In a specific embodiment, the motor 1 serves as the power source of the drive shaft 3, driving the rotating reaction drum 8 to perform circular motion along the axis. The outer side of the rotating reaction drum 8 is fixed with a bearing to prevent leakage of pyrolysis exhaust gas in the fuel reaction chamber 9 while rotating relative to it. The motor 1 is supported by a motor support plate.
[0041] The specific steps of using this device to treat organic solid waste are as follows:
[0042] Organic solid waste enters the conveyor chain 12 through the feed port 14, and is pyrolyzed during the transmission process of the conveyor chain 12 in the pyrolysis conversion chamber. The pyrolysis residual waste is recovered through the waste outlet 10 under the action of the conveyor chain 12. The pyrolysis waste gas containing harmful substances generated by combustion is guided by the blower 5 and transported to the fuel reaction chamber 9 ( Figure 1The small arrow indicates the direction of exhaust gas flow. After reacting with the oxygen carrier in the rotating reaction drum 8, harmful substances in the exhaust gas are fixed in the oxygen carrier. Most of the clean gas after the reaction is discharged, while a small portion is regulated by flow control valve 17 and transported back to the pyrolysis conversion chamber for recycling by the second blower 19. After the oxygen carrier in the fuel reaction chamber 9 completes its reaction with the exhaust gas, the remaining exhaust gas in the oxygen carrier is purged and discharged by inert gas introduced into the exhaust gas purge zone 21. It is then transported back to the pyrolysis conversion chamber via a pipe connected to the outlet by the second blower 19. Driven by the motor 1 and drive shaft 3, the oxygen carrier in the rotating reaction drum 8 rotates and enters the air reaction chamber 11. In the air reaction chamber 11, the low-valent oxygen carrier that has reacted with the exhaust gas is oxidized to form high-valent oxygen carriers, releasing a large amount of heat, completing the regeneration of the oxygen carriers. The high-valent oxygen carriers can then return to the fuel reaction chamber 9 to participate in the chemical reaction of the exhaust gas, completing the chemical looping combustion cycle. The large amount of heat generated by the air reaction chamber 11 during the reaction process can not only maintain the temperature required by the fuel reaction chamber 9 during the reaction process, but also evaporate the added water into water vapor through the upper heat exchange plate to drive the machine to do work.
[0043] In summary, the present invention aims to treat organic solid waste based on the integrated technology of pyrolysis and chemical chain combustion. Compared with traditional centralized incineration equipment, this device uses the low-pollution and low-emission characteristics of chemical chain combustion to treat the pyrolysis waste gas generated by solid waste on the basis of centralized incineration. It can not only realize the integrated treatment of pollutants, but also treat single pollutants by changing the composition and mass fraction of the oxygen carrier. The oxygen carrier is recycled and regenerated through the redox reaction of the oxygen carrier between the two reaction chambers in the rotating reaction drum, thereby improving the sustainability of the device; the large amount of heat generated in the air reaction chamber during the reaction process can not only maintain the temperature required for the reaction in the reaction chamber, but also evaporate the added water into water vapor through the action of the upper heat exchange plate to drive the machine to do work.
[0044] The release of pollutants such as NOx / SOx / HCl / etc. in traditional air combustion treatment of solid waste is an important issue that needs to be addressed.
[0045] Compared to traditional air combustion, chemical looping combustion produces significantly lower NOx emissions. Due to its low combustion temperature and isolation of the fuel reaction from nitrogen, chemical looping combustion effectively avoids the formation of thermal and rapid NOx. Instead, it produces NOx precursors primarily composed of HCN and NH3. The oxygen carrier used directly oxidizes these precursors into non-polluting N2, resulting in a total NOx generation rate of less than 0.7%.
[0046] The desulfurization and dechlorination efficiency of traditional air combustion is almost zero. However, chemical looping combustion using different oxygen carriers can not only effectively reduce NOx emissions, but also, through modification, capture and fix sulfur and chlorine in the modified oxygen carrier, gaining the ability to absorb and fix sulfur and chlorine, converting gaseous pollutants into stable salt solids and achieving pollutant removal. For example, using calcium-loaded iron ore oxygen carriers can achieve an effective desulfurization efficiency of 50% and a dechlorination efficiency of 38%. Using potassium-loaded iron ore oxygen carriers and sodium-loaded iron ore oxygen carriers can effectively achieve a dechlorination efficiency of over 80%.
[0047] This device can effectively achieve a solid waste combustion efficiency of 95% and a removal efficiency of 99% for various pollutants during the chemical chain combustion process by selectively replacing modified oxygen carriers with different components and mass fractions. The solid waste treatment capacity is 200kg / d. The equipment has a compact structure, low operating costs, and flexible distribution. It overcomes the shortcomings of traditional incineration that pollutes the atmospheric environment. At the same time, it has great practical application value and can be applied to the treatment of organic solid waste in small and medium-sized remote rural areas, remote and isolated islands or mountainous areas.
[0048] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made based on the essence of the present invention are intended to be covered by the scope of protection of the present invention.
Claims
1. A distributed organic solid waste treatment device, characterized in that: The invention comprises a shell, wherein a rotating reaction drum is installed in the shell; a heat exchange plate is arranged in the shell above the rotating reaction drum, and the space formed by the heat exchange plate and the shell is used as a heat exchange chamber; and the space in the shell below the rotating reaction drum is used as a pyrolysis conversion chamber; The inner wall of the rotating reaction drum is filled with oxygen carriers; part of the rotating reaction drum is used as a fuel reaction chamber, and part of the rotating reaction drum is used to pass through an air pipeline and serve as an air reaction chamber; The pyrolysis conversion chamber is used to perform pyrolysis and combustion on organic solid waste. The exhaust gas containing harmful substances generated during the pyrolysis process is transported to the fuel reaction chamber, reacts with the oxygen carrier in the fuel reaction chamber, and fixes the harmful substances in the exhaust gas in the oxygen carrier. The oxygen carrier in the fuel reaction chamber becomes a low-valent oxygen carrier after reacting with the exhaust gas. The low-valent oxygen carrier enters the air reaction chamber, is oxidized by air in the air reaction chamber to form a high-valent oxygen carrier, and releases heat, completing the regeneration of the oxygen carrier, realizing the cycle of chemical chain combustion; Part of the heat released by the air reaction chamber is used to maintain the temperature required by the fuel reaction chamber during the reaction process, and part of the heat is used by the heat exchange chamber. An air purge zone and an exhaust gas purge zone are provided between the fuel reaction chamber and the air reaction chamber. Inert gas is introduced into the air purge zone and the exhaust gas purge zone through independent pipelines to purge out the reaction gas remaining in the oxygen carrier. The air cleaning zone uses the inert gas introduced to discharge the air remaining in the oxygen carrier during the reaction process in the air reaction chamber; the waste gas cleaning zone uses the inert gas to discharge the waste gas remaining in the oxygen carrier during the reaction process in the fuel reaction chamber, and the waste gas is transported back to the pyrolysis conversion chamber by the second blower through the pipe connected to the outlet; The exhaust gas after reacting with the oxygen carrier in the fuel reaction chamber becomes clean gas, part of which is discharged and part of which enters the pyrolysis conversion chamber through the flow control valve; The inner wall of the rotating reaction drum is provided with a honeycomb dense frame, which is made of quartz sand inert material and has several holes. Each hole is not connected to each other, forming a single tight channel. The porous combustion rods made of oxygen carriers are inserted into each hole of the frame.
2. The distributed organic solid waste treatment device according to claim 1, characterized in that: The heat exchange chamber is provided with a water inlet and a water vapor outlet, and a heat exchange fin is provided between the water inlet and the water vapor outlet. The heat released by the air reaction chamber evaporates the water added to the water inlet into water vapor through the heat exchange plate and flows out from the water vapor outlet to drive the machine to do work.
3. The distributed organic solid waste treatment device according to claim 1, characterized in that: The rotary reaction drum is driven by a motor and a driving shaft to rotate.
4. The distributed organic solid waste treatment device according to claim 1 or 3, characterized in that: The outer side of the rotating reaction drum is fixed by a bearing.
5. The distributed organic solid waste treatment device according to claim 1, characterized in that: A fuel feed port and a waste outlet are provided in the pyrolysis conversion chamber, a conveyor chain is provided between the fuel feed port and the waste outlet, and an igniter is provided below the conveyor chain; a first blower is also provided in the pyrolysis conversion chamber to guide the pyrolysis waste gas containing harmful substances generated by combustion to the fuel reaction chamber.
6. The distributed organic solid waste treatment device according to claim 3, characterized in that: The motor is supported by a motor support plate.
Citation Information
Patent Citations
Biomass pyrolysis and chemical chain hydrogen production coupled continuous reaction device and method for producing hydrogen gas with biomass pyrolysis and chemical chain hydrogen production coupled continuous reaction device
CN104129754A