Rubbish warehouse capable of achieving continuous fermentation

By setting up circulation channels and heat exchangers inside the waste storage facility, the temperature of the waste storage facility is maintained by utilizing the heat from the flue gas, which solves the problem of excessively low temperature in the waste storage facility during winter, achieves full fermentation of waste and improves incineration efficiency, while reducing odor emission.

CN224211642UActive Publication Date: 2026-05-08ZHONGWEI GREEN ENERGY NEW ENERGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGWEI GREEN ENERGY NEW ENERGY CO LTD
Filing Date
2025-06-24
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

In northern regions, the temperature at garbage storage facilities is too low during winter, which affects the fermentation of garbage, resulting in incomplete combustion and low efficiency, and also causes odors to escape from the garbage storage facilities.

Method used

A circulation channel is set up inside the waste storage facility to recover heat energy through airflow circulation and heat exchangers. The heat from the flue gas is used to maintain the internal temperature of the waste storage facility, and odorous gases are treated through induced draft fans and gas recovery pipelines.

Benefits of technology

The fermentation temperature inside the waste storage facility was increased, ensuring complete incineration of the waste, reducing odor emissions, and achieving the recovery and utilization of heat energy and improving the efficiency of waste incineration.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a garbage storeroom capable of continuously fermenting, which comprises a garbage storeroom and an incinerator, the incinerator comprises a combustion chamber, a feed port and a flue, the bottom of the garbage storeroom is provided with a drainage ditch, the bottom of the garbage storeroom is provided with a plurality of grids, and a circulation channel for airflow circulation is arranged in a wall body of the garbage storeroom. The circulation channel is provided with an air inlet channel and an exhaust channel, and the air inlet channel communicates with the heat exchanger a through a pipeline a. According to the garbage storeroom capable of achieving continuous fermentation, through a circulation channel like a fire wall transformed from the garbage storeroom, airflow flows in the circulation channel, circulates into the garbage storeroom from the circulation channel and is finally fed into the combustion chamber to be combusted and purified, heat exchange is conducted on the airflow and smoke through the heat exchanger, heat energy is provided, and the garbage storeroom capable of achieving continuous fermentation has the advantages of heat energy recycling and garbage storeroom circulation heating; the garbage fermentation effect of the garbage warehouse is improved, and the smell of the garbage warehouse is prevented from scattering.
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Description

Technical Field

[0001] This utility model relates to the field of waste incineration technology, specifically a sustainable fermentation waste storage facility. Background Technology

[0002] Waste-to-energy incineration refers to the process of converting the chemical energy of municipal solid waste into thermal energy through high-temperature incineration, and then converting the thermal energy into electrical energy through equipment such as steam turbines. It is a treatment method that integrates waste reduction, harmlessness and resource utilization, and is currently widely used around the world.

[0003] Waste (especially mixed household waste) has a complex composition, containing a large amount of organic matter such as kitchen waste, paper, and plastic. Direct incineration may result in incomplete combustion and low efficiency. Fermentation degrades organic matter through the action of microorganisms, improving the adaptability of waste to incineration, combustion efficiency, and comprehensive treatment benefits. However, the cold winter weather in the north means that waste storage facilities do not have good insulation, and the temperature in winter can only reach 9℃-13℃, which affects waste fermentation. Therefore, the technology of waste storage facilities is improved to enable them to have a good fermentation effect. Utility Model Content

[0004] The purpose of this invention is to provide a sustainable fermentation waste storage facility to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A sustainable fermentation waste storage facility includes a waste storage facility and an incinerator. The incinerator includes a combustion chamber, a feeding port, and a flue. A drainage ditch is provided at the bottom of the waste storage facility, and multiple grilles are installed at the bottom of the waste storage facility. A circulation channel for airflow circulation is provided inside the walls of the waste storage facility. The circulation channel is provided with an air inlet channel and an air outlet channel. The air inlet channel is connected to a heat exchanger a via pipeline a. A flue is provided on the flue, and the flue is connected to heat exchanger a via a primary heat exchange pipeline. The flue gas discharged from heat exchanger a is connected to the flue via the circulation pipeline. The gas source is sent into the circulation channel after heat exchanger a is heat exchanged and then enters pipeline a.

[0007] As a further embodiment of this utility model: the exhaust channel of the circulation channel is connected to heat exchanger b through pipeline b, heat exchanger b is connected to drainage ditch through pipeline c, the flue pipe is connected to heat exchanger b through secondary heat exchange pipeline, heat exchanger b is connected to circulation pipeline through flue gas return pipeline, and flue gas enters heat exchanger b through secondary heat exchange pipeline, is heated and then sent into flue through flue gas return pipeline and circulation pipeline.

[0008] As a further improvement of this utility model: the circulation pipeline is equipped with an induced draft fan a, and the flue is connected to the secondary heat exchange pipeline and the primary heat exchange pipeline respectively through a three-way valve.

[0009] As a further improvement of this utility model, an induced draft fan b is provided on the pipeline b.

[0010] As a further embodiment of this utility model: the top of the waste storage tank is connected to the combustion chamber through a gas recovery pipeline, and an induced draft fan c is installed on the gas recovery pipeline. The gas inside the waste storage tank is blown into the combustion chamber through the gas recovery pipeline and the induced draft fan c.

[0011] As a further improvement of this utility model: a steam-water separator is installed on the circulation pipeline. After the flue gas undergoes heat exchange, condensation occurs, and the condensate is discharged from the circulation pipeline through the steam-water separator.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This sustainable fermentation waste storage facility utilizes a firewall-like circulation channel. Airflow flows within this channel, circulating from the storage facility into the interior before finally being sent to the combustion chamber for combustion and purification. The airflow and flue gas exchange heat through a heat exchanger, providing thermal energy. This system offers advantages such as heat energy recovery and utilization, continuous heating of the waste storage facility, improved waste fermentation efficiency, and prevention of odors escaping from the waste storage facility. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a sustainable fermentation waste storage facility.

[0015] In the diagram: 1. Waste storage tank; 2. Combustion chamber; 3. Feed port; 4. Flue; 5. Gas recovery pipeline; 6. Drainage ditch; 7. Grille; 8. Circulation channel; 9. Pipeline b; 10. Heat exchanger b; 11. Pipeline c; 12. Flue gas return pipeline; 13. Circulation pipeline; 14. Smoke pipe; 15. Pipeline a; 16. Primary heat exchange pipeline; 17. Secondary heat exchange pipeline; 18. Heat exchanger a. Detailed Implementation

[0016] Please see Figure 1In this embodiment of the invention, a sustainable fermentation waste storage facility includes a waste storage facility 1 and an incinerator. The incinerator includes a combustion chamber 2, a feeding port 3, and a flue 4. A drainage ditch 6 is provided at the bottom of the waste storage facility 1, and multiple grilles 7 are installed at the bottom of the waste storage facility 1. A circulation channel 8 for airflow circulation is provided inside the wall of the waste storage facility 1. The circulation channel 8 is provided with an air inlet channel and an air outlet channel. The air inlet channel is connected to a heat exchanger a18 through a pipeline a15. A flue pipe 14 is provided on the flue 4. The flue pipe 14 is connected to the heat exchanger a18 through a primary heat exchange pipeline 16. The flue gas discharged from the heat exchanger a18 is connected to the flue 4 through a circulation pipeline 13. The gas source is connected to the heat exchanger a18 through the circulation pipeline 13. After heat exchange in heat exchanger A18, the gas enters pipeline A15 and is sent into circulation channel 8. The waste storage 1 is set up like a firewall, and the airflow can circulate in circulation channel 8. Through the circulation of airflow, the heat storage and radiation characteristics of the wall are used to transfer heat to the inside of waste storage 1, maintaining the temperature inside waste storage 1 at a suitable temperature. The gas source is input into heat exchanger A18 through pipeline. Heat exchanger A18 contains flue gas. The circulating gas and flue gas exchange heat inside heat exchanger A18, increasing the temperature of the circulating gas. The circulating gas is sent into circulation channel 8 through pipeline A15 to maintain the fermentation temperature inside waste storage 1, and the heat of the flue gas is recovered and used for the constant temperature of waste storage 1.

[0017] In a preferred embodiment, the exhaust passage of the circulation channel 8 is connected to the heat exchanger b10 via pipeline b9. The heat exchanger b10 is connected to the drainage ditch 6 via pipeline c11. The flue pipe 14 is connected to the heat exchanger b10 via the secondary heat exchange pipeline 17. The heat exchanger b10 is connected to the circulation pipeline 13 via the flue gas return pipeline 12. The flue gas enters the heat exchanger b10 through the secondary heat exchange pipeline 17, is heated, and is then sent into the flue duct 4 via the flue gas return pipeline 12 and the circulation pipeline 13. After passing through the circulation channel 8, the airflow circulates into the drainage ditch 6. The airflow flows upward through the grille 7 and passes through the gaps between the garbage, exchanging heat with the garbage along the way. After circulating through the circulation channel 8, the airflow temperature decreases. Before entering the garbage storage, further heat exchange is required. Therefore, the heat exchanger b10 is configured to perform secondary heating of the circulating airflow in the same way as the heat exchanger a18, and then send it into the garbage storage 1 to directly contact the garbage for heat exchange.

[0018] In a preferred embodiment, the circulation pipeline 13 is equipped with an induced draft fan a, the flue 14 is connected to the secondary heat exchange pipeline 17 and the primary heat exchange pipeline 16 respectively through a three-way valve, and the pipeline b9 is equipped with an induced draft fan b.

[0019] In a preferred embodiment, the top of the waste storage tank 1 is connected to the combustion chamber 2 via a gas recovery pipeline 5. An induced draft fan c is installed on the gas recovery pipeline 5. Gas inside the waste storage tank 1 is blown into the combustion chamber 2 through the gas recovery pipeline 5 and the induced draft fan c. During the circulation process, the gas pressure inside the waste storage tank 1 increases, which can cause the odor inside the waste storage tank 1 to spread out and affect the external environment. Therefore, the gas recovery pipeline 5 is set up, and the induced draft fan c extracts the gas. The gas flow rate output by the induced draft fan c is greater than the gas flow rate injected into the waste storage tank 1 by the pipeline c11. The airflow is sent into the combustion chamber 2 for combustion. The high-temperature combustion in the combustion chamber 2 has a decomposition effect on some odor components, and finally, it is treated in conjunction with the existing waste incineration flue gas purification system.

[0020] In a preferred embodiment, a steam-water separator is provided on the circulation pipeline 13. After the flue gas undergoes heat exchange, condensation occurs, and the condensate is discharged from the circulation pipeline 13 through the steam-water separator.

[0021] It should be noted that all the above embodiments belong to the same utility model concept, and the descriptions of each embodiment have different focuses. Where the description in a particular embodiment is not detailed, please refer to the description in other embodiments.

[0022] The embodiments described above merely illustrate the implementation of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A sustainable fermentation waste storage facility, comprising a waste storage facility (1) and an incinerator, the incinerator including a combustion chamber (2), a feeding port (3) and a flue (4), a drainage ditch (6) provided at the bottom of the waste storage facility (1), and multiple grilles (7) installed at the bottom of the waste storage facility (1), characterized in that, The interior of the wall of the garbage storage (1) is provided with a circulation channel (8) for airflow circulation. The circulation channel (8) is provided with an air intake channel and an exhaust channel. The air intake channel is connected to the heat exchanger a (18) through pipeline a (15). A flue pipe (14) is provided on the flue (4). The flue pipe (14) is connected to the heat exchanger a (18) through a primary heat exchange pipeline (16). The flue gas discharged from the heat exchanger a (18) is connected to the flue (4) through the circulation pipeline (13). The gas source is sent into the circulation channel (8) after heat exchange in the heat exchanger a (18).

2. The sustainable fermentation waste storage facility according to claim 1, characterized in that, The exhaust passage of the circulation channel (8) is connected to the heat exchanger b (10) through the pipeline b (9). The heat exchanger b (10) is connected to the drainage ditch (6) through the pipeline c (11). The flue pipe (14) is connected to the heat exchanger b (10) through the secondary heat exchange pipeline (17). The heat exchanger b (10) is connected to the circulation pipeline (13) through the flue gas return pipeline (12). The flue gas enters the heat exchanger b (10) through the secondary heat exchange pipeline (17), is heated, and is sent into the flue (4) through the flue gas return pipeline (12) and the circulation pipeline (13).

3. A sustainable fermentation waste storage facility according to claim 2, characterized in that, The circulation pipeline (13) is equipped with an induced draft fan a, and the flue (14) is connected to the secondary heat exchange pipeline (17) and the primary heat exchange pipeline (16) respectively through a three-way valve.

4. A sustainable fermentation waste storage facility according to claim 2, characterized in that, An induced draft fan b is installed on the pipeline b (9).

5. A sustainable fermentation waste storage facility according to claim 1, characterized in that, The top of the waste storage (1) is connected to the combustion chamber (2) through a gas recovery pipeline (5). An induced draft fan c is installed on the gas recovery pipeline (5). The gas inside the waste storage (1) is blown into the combustion chamber (2) through the gas recovery pipeline (5) and the induced draft fan c.

6. A sustainable fermentation waste storage facility according to claim 1, characterized in that, A steam-water separator is installed on the circulation pipeline (13). After the flue gas undergoes heat exchange, condensation occurs, and the condensate is discharged from the circulation pipeline (13) through the steam-water separator.