Auxiliary thawing device

By using an auxiliary thawing device to heat kitchen waste with flue gas from the waste incinerator to generate biogas slurry, which is then sprayed into the waste storage pit, the problem of insufficient fermentation caused by waste freezing is solved, the calorific value of waste and power generation efficiency are improved, and the operating and waste liquid treatment costs are reduced.

CN223939442UActive Publication Date: 2026-02-24青岛西海岸康恒环保能源有限公司
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Patent Information

Application Number
CN202520616490.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-02
Publication Date
2026-02-24
Estimated Expiration
2035-04-02

AI Technical Summary

Technical Problem

The cold winter weather causes garbage to freeze and cannot melt in time, resulting in insufficient fermentation of garbage, which affects the combustion efficiency of boilers and the calorific value of garbage, and thus affects power generation efficiency.

Method used

Design an auxiliary defrosting device that uses flue gas from a waste incinerator to heat kitchen waste, generating biogas slurry which is then sprayed into the waste storage pit to increase the waste temperature, promote fermentation and dehydration, increase the calorific value of the waste, and reduce diesel consumption.

Benefits of technology

Increase the calorific value of waste, increase the amount of electricity generated per ton of waste, reduce operating costs, and reduce wastewater treatment costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an auxiliary unfreezing device and relates to the technical field of thermal power generation, heat is conducted into a first containing space through a second containing space, then kitchen waste in the first containing space is heated, biogas slurry is generated from the kitchen waste, a conveying part conveys the biogas slurry to a spraying part, and the spraying part sprays the biogas slurry. The kitchen biogas slurry is conveyed into the garbage storage pit body, so that the spraying part sprays the garbage in the garbage storage pit body, the garbage temperature can be increased, garbage fermentation and dehydration are promoted, meanwhile, the heat value of the garbage is increased, the power generation capacity of each ton of garbage is increased, and the use amount of diesel oil is reduced so as to achieve the effect of reducing the operation cost; and the treatment cost of the waste liquid is also reduced.
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Description

Technical Field

[0001] This utility model relates to the field of thermal power generation technology, and in particular to an auxiliary defrosting device. Background Technology

[0002] Waste-to-energy refers to a form of power generation that uses special incineration boilers to burn municipal solid waste and then generates electricity through steam turbine generator sets. Waste-to-energy is divided into two main categories: waste incineration power generation and landfill gas power generation.

[0003] Currently, due to the cold winter weather, the collected garbage freezes and cannot melt in time, resulting in garbage clumping. This leads to insufficient fermentation of the garbage in the garbage pit, resulting in low calorific value when fed into the furnace, which in turn affects the combustion of the boiler.

[0004] Therefore, the aforementioned technical issues still need further resolution. Utility Model Content

[0005] The purpose of this invention is to provide an auxiliary defrosting device to alleviate the technical problems existing in the aforementioned related technologies.

[0006] This utility model provides an auxiliary defrosting device, comprising:

[0007] The reaction section has a first accommodating space and a second accommodating space. The first accommodating space is used to place the object to be heated, and the second accommodating space is used to connect to the flue gas outlet of the waste incinerator body. The second accommodating space can conduct heat to the first accommodating space.

[0008] The conveying unit is connected to both the first accommodating space and the reaction unit.

[0009] A spraying unit is installed inside the waste storage pit and connected to the conveying unit.

[0010] The second containment space conducts heat to the first containment space to heat the object to be heated and generate a reaction fluid. The reaction fluid is transported to the spraying unit through the conveying unit so that the spraying unit sprays the garbage in the garbage storage pit body.

[0011] The purpose of this application and the technical problems to be solved can also be further achieved by the following technical measures.

[0012] Optionally, the aforementioned auxiliary defrosting device further includes:

[0013] The power generation unit is connected to the flue gas outlet of the waste incinerator body via the second accommodating space.

[0014] Optionally, the aforementioned auxiliary defrosting device further includes:

[0015] The condenser section is connected to the second accommodating space;

[0016] The condenser section is used to process the flue gas discharged into the condenser section from the second accommodating space.

[0017] Optionally, in the aforementioned auxiliary defrosting device, the reaction section includes:

[0018] The first housing has a hollow interior forming the first accommodating space, and both the first and second sides opposite to the first housing have openings communicating with their interiors.

[0019] A cover plate, the cover plate being disposed on the opening on the first side of the first housing;

[0020] The second housing is fitted onto the side wall between the two openings of the first housing and encloses the first housing. The interlayer between the second housing and the first housing forms the second receiving space.

[0021] The second housing has an air inlet and an air outlet. The air inlet is located on one side of the first housing, and the air outlet is located on the other side of the first housing opposite to the first side. The air inlet is connected to the flue gas outlet of the power generation unit and the waste incinerator body in sequence through a first pipeline. The air outlet is connected to the condensation unit through a second pipeline. The opening on the second side of the first housing is connected to the conveying unit and the spraying unit in sequence through a third pipeline.

[0022] Optionally, in the aforementioned auxiliary defrosting device, the reaction section further includes:

[0023] A permeation plate is disposed within the first accommodating space and divides the first accommodating space into a stacked product space and a storage space. Both the storage space and the product space are connected to the opening on the first side of the first housing, and the product space is connected to the opening on the second side of the first housing.

[0024] The permeation plate has multiple through holes, which are arranged at intervals on the permeation plate, and the storage space and the product space are connected through the through holes.

[0025] Optionally, in the aforementioned auxiliary defrosting device, the conveying unit is a conveying pump.

[0026] Optionally, in the aforementioned auxiliary defrosting device, the spraying section includes:

[0027] Multiple nozzles, each with its input end connected to the delivery pump via the third pipeline, and each nozzle's output end corresponding to a different area within the waste storage pit.

[0028] Optionally, in the aforementioned auxiliary defrosting device, the power generation unit is a steam turbine.

[0029] Optionally, in the aforementioned auxiliary defrosting device, the condensing section is a condenser tube.

[0030] Optionally, in the aforementioned auxiliary defrosting device, valves are provided on the first pipeline between the second accommodating space and the power generation unit, the second pipeline, and the third pipeline between the second accommodating space and the conveying unit.

[0031] By employing the above technical solution, this application has at least the following advantages:

[0032] The auxiliary defrosting device provided in this application embodiment conducts heat to the first containing space through the second containing space, thereby heating the kitchen waste in the first containing space and causing the kitchen waste to produce biogas slurry. The conveying unit transports the biogas slurry to the spraying unit, so that the spraying unit sprays the waste in the waste storage pit body, thereby increasing the waste temperature, promoting waste fermentation and dehydration, increasing the calorific value of the waste, increasing the power generation per ton of waste, and reducing the amount of diesel used to achieve the effect of reducing operating costs. In addition, the wastewater treatment cost is also reduced when the kitchen waste biogas slurry is transported to the waste storage pit body. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of this utility model, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0034] Figure 1 A first-view structural schematic diagram of the auxiliary defrosting device provided in an embodiment of this utility model;

[0035] Figure 2 A second-view structural schematic diagram of the auxiliary defrosting device provided in an embodiment of this utility model;

[0036] Figure 3 This is a schematic diagram of the structure of the garbage storage pit body provided in an embodiment of the present utility model.

[0037] icon:

[0038] 1. First shell; 2. Second shell; 3. First accommodating space; 31. Storage space; 32. Product space; 4. Second accommodating space; 5. Cover plate; 6. Permeation plate; 7. First pipeline; 8. Second pipeline; 9. Third pipeline; 10. Conveying section; 11. Spraying section; 12. Power generation section; 13. Condensation section; 14. Waste storage pit body; 15. Valve. Detailed Implementation

[0039] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0040] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] Example

[0043] like Figure 1 As shown in Figure 3, the auxiliary defrosting device proposed in the embodiment of this utility model includes:

[0044] The reaction section has a first accommodating space 3 and a second accommodating space 4. The first accommodating space 3 is used to place the object to be heated, and the second accommodating space 4 is used to connect to the flue gas outlet of the waste incinerator body. The second accommodating space 4 can conduct heat to the first accommodating space 3.

[0045] The conveying unit 10 is connected to the first accommodating space 3 and the reaction unit respectively;

[0046] The spraying unit 11 is installed inside the garbage storage pit body 14 and connected to the conveying unit 10.

[0047] The second containment space 4 conducts heat to the first containment space 3 to heat the object to be heated and generate a reaction fluid. The reaction fluid is transported to the spraying section 11 through the conveying section 10 so that the spraying section 11 sprays the garbage in the garbage storage pit body 14.

[0048] Specifically, the reaction section has a first containing space 3 and a second containing space 4. The first containing space 3 is used to place the material to be heated, such as kitchen waste. The second containing space 4 is used to connect to the flue gas outlet of the waste incinerator body. The flue gas outlet of the waste incinerator body sends a large amount of high-temperature flue gas into the second containing space 4 so that the second containing space 4 conducts heat to the first containing space 3, thereby heating the kitchen waste in the first containing space 3 and causing the kitchen waste to produce biogas slurry.

[0049] The conveying unit 10 is used to convey the biogas slurry generated in the first containing space 3 and to the spraying unit 11 so that the spraying unit 11 sprays the garbage in the garbage storage pit body 14, thereby increasing the garbage temperature, promoting garbage fermentation and dehydration, increasing the calorific value of the garbage, increasing the power generation per ton of garbage, and reducing the amount of diesel used to reduce operating costs. In addition, the cost of waste liquid treatment will also be reduced when the kitchen waste biogas slurry is conveyed to the garbage storage pit body 14.

[0050] The auxiliary defrosting device provided in this embodiment of the utility model conducts heat to the first containing space 3 through the second containing space 4, thereby heating the kitchen waste in the first containing space 3 and causing the kitchen waste to produce biogas slurry. The conveying unit 10 conveys the biogas slurry to the spraying unit 11, so that the spraying unit 11 sprays the waste in the waste storage pit body 14, thereby increasing the temperature of the waste, promoting the fermentation and dehydration of the waste, increasing the calorific value of the waste, increasing the power generation per ton of waste, and reducing the amount of diesel used to reduce operating costs. In addition, the waste treatment cost is also reduced by conveying the kitchen biogas slurry to the waste storage pit body 14.

[0051] like Figure 1 - Figure 2 As shown, in specific implementation, it also includes:

[0052] The power generation unit 12 and the second accommodating space 4 are connected to the flue gas outlet of the waste incinerator body through the power generation unit 12.

[0053] Specifically, a portion of the gas exiting the flue gas outlet of the waste incinerator body is used by the power generation unit 12 to generate electricity, while another portion of the gas enters the second containment space 4 through the power generation unit 12, so that the second containment space 4 conducts heat to the first containment space 3, thereby heating the food waste in the first containment space 3 and causing the food waste to produce biogas slurry.

[0054] The electrical energy generated by the power generation unit 12 is uploaded to the power grid for storage. This structural design not only improves the effectiveness of the device but also achieves energy saving and efficiency enhancement, thus improving the practicality of the device.

[0055] The No. 12 generator set is a steam turbine, which can be obtained through procurement.

[0056] like Figure 1 - Figure 2 As shown, in specific implementation, it also includes:

[0057] Condensation section 13, which is connected to the second accommodating space 4;

[0058] The condenser section 13 is used to process the flue gas discharged into the condenser section 13 from the second accommodating space 4.

[0059] Specifically, the condenser 13 can achieve the effect of secondary recycling and centralized treatment. The gas discharged from the second containment space 4 into the condenser 13 is converted into liquid by the condenser 13 and then transported to the treatment plant for centralized treatment before being discharged.

[0060] The condenser section 13 is a condenser tube that can be purchased.

[0061] like Figure 1 - Figure 2 As shown, in a specific implementation, the reaction section includes:

[0062] The first housing 1 has a hollow interior forming the first accommodating space 3, and both the first and second sides opposite to the first housing 1 have openings that communicate with their interiors.

[0063] Cover plate 5, the cover plate being placed on the opening on the first side of the first housing 1;

[0064] The second housing 2 is fitted onto the side wall between the two openings of the first housing 1 and wraps the first housing 1. The interlayer between the second housing 2 and the first housing 1 forms the second accommodating space 4.

[0065] The second housing 2 has an air inlet and an air outlet. The air inlet is located on one side of the first housing 1, and the air outlet is located on the other side of the first housing 1 away from the first side. The air inlet is connected to the power generation unit 12 and the flue gas outlet of the waste incinerator body in sequence through a first pipe 7. The air outlet is connected to the condensation unit 13 through a second pipe 8. The opening on the second side of the first housing 1 is connected to the conveying unit 10 and the spraying unit 11 in sequence through a third pipe 9.

[0066] Specifically, the second housing 2 is fitted over the outside of the first housing 1, and a second receiving space 4 is formed between the inner side wall of the second housing 2 and the outer side wall of the first housing 1. The cavity inside the first housing 1 forms a first receiving space 3. The opening on the first side of the first housing 1 has a cover plate 5, and the opening on the second side of the first housing 1 is connected to the conveying unit 10 through a third pipe 9.

[0067] The opening on the first side of the first housing 1 is used to fill the object to be heated (kitchen waste), and the cover plate 5 is used to seal the inner cavity of the first housing 1. The cover plate 5 and the first housing 1 are connected in a detachable manner, such as by snap-fit ​​or bolt connection.

[0068] The air inlet on the second housing 2 is connected in sequence to the power generation unit 12 and the flue gas outlet of the waste incinerator body via the first pipe 7. Part of the gas discharged from the flue gas outlet of the waste incinerator body is used to generate electricity in the power generation unit 12, and the other part enters the second receiving space 4 through the power generation unit 12 to heat the material to be heated (kitchen waste) in the first receiving space 3. The first pipe 7 is connected to the air inlet, the flue gas outlet of the waste incinerator body, and the power generation unit 12 in a conventional manner. The specific connection method is known to the technicians and will not be described in detail here.

[0069] The gas outlet on the second housing 2 is connected to the condenser 13 via the second pipe 8. Gas discharged from the second receiving space 4 into the condenser 13 via the second pipe 8 is converted into liquid by the condenser 13 and then transported to the treatment plant for centralized treatment before being discharged. The second pipe 8 is connected to the gas outlet and the condenser 13 in a conventional manner. The specific connection method is known to the technicians and will not be described in detail here.

[0070] like Figure 2 As shown, in a specific implementation, the reaction section further includes:

[0071] A permeation plate 6 is disposed in the first accommodating space 3 and divides the first accommodating space 3 into a stacked product space 32 and a storage space 31. The storage space 31 and the product space 32 are both connected to the opening on the first side of the first housing 1, and the product space 32 is connected to the opening on the second side of the first housing 1.

[0072] The permeation plate 6 has multiple through holes, which are arranged at intervals on the permeation plate 6. The storage space 31 and the product space 32 are connected through the through holes.

[0073] Specifically, in order to improve the solid-liquid separation effect in the first containing space 3 of this application, a permeation plate 6 is provided in the first containing space 3. The permeation plate 6 divides the first containing space 3 into a stacked product space 32 and a storage space 31. Both the storage space 31 and the product space 32 are connected to the opening on the first side of the first shell 1. The product space 32 is connected to the opening on the second side of the first shell 1. When the technician fills the storage space 31 with the material to be heated (kitchen waste) through the opening on the first side of the first shell 1, and the second containing space 4 conducts heat to the first containing space 3 and heats the material to be heated (kitchen waste) in the storage space 31, the biogas slurry produced by the material to be heated (kitchen waste) flows into the product space 32 through the through holes on the permeation plate 6 under the action of gravity. At this time, the conveying unit 10 can transport the biogas slurry in the product space 32 to the spraying unit 11 so that the spraying unit 11 can spray the garbage in the garbage storage pit body 14. The permeation plate 6 is connected to the first housing 1 in a detachable manner, such as by snap-fit ​​or bolt connection. The components located in the first housing 1 and the second housing 2 and connected to the first housing 1 and the second housing 2 are all made of high-temperature resistant materials.

[0074] In a specific implementation, the conveying unit 10 is a conveying pump, which can be obtained through procurement.

[0075] like Figure 3 As shown, in a specific implementation, the spraying unit 11 includes:

[0076] Multiple nozzles, each with its input end connected to the delivery pump via the third pipeline 9, and each nozzle with its output end corresponding to a different area within the waste storage pit body 14.

[0077] Specifically, this structural design allows the spraying unit 11 to effectively spray different areas, improving efficiency while avoiding resource waste. The spray nozzles can be purchased.

[0078] It should be noted that there are multiple nozzles, and the number of nozzles can be determined according to actual needs. For example, if the garbage storage pit body 14 is divided into five areas, then each area will be equipped with one nozzle. The nozzles are connected to the delivery pump through a third pipe 9. The third pipe 9 includes multiple branch pipes and connecting fittings. The connecting fittings can be tee fittings or four-way fittings. The branch pipes and connecting fittings are matched to allow the output pump to be connected to multiple nozzles. The connection between the branch pipes and connecting fittings, between the branch pipes and the output pump, and between the branch pipes and nozzles are all made in a conventional way. The specific connection methods are known to the technicians and will not be described in detail here.

[0079] like Figure 1 - Figure 2 As shown, in a specific implementation, valves 15 are provided on the first pipeline 7 between the second accommodating space 4 and the power generation unit, the second pipeline 8, and the third pipeline 9 between the second accommodating space 4 and the conveying unit 10.

[0080] Specifically, valve 15 is used to control whether each pipeline is open, so that technicians can effectively use and operate the device.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An auxiliary defrosting device, characterized in that, include: The reaction section has a first accommodating space and a second accommodating space. The first accommodating space is used to place the object to be heated, and the second accommodating space is used to connect to the flue gas outlet of the waste incinerator body. The second accommodating space can conduct heat to the first accommodating space. The conveying unit is connected to both the first accommodating space and the reaction unit. A spraying unit is installed inside the waste storage pit and connected to the conveying unit. The second containment space conducts heat to the first containment space to heat the object to be heated and generate a reaction fluid. The reaction fluid is transported to the spraying unit through the conveying unit so that the spraying unit sprays the garbage in the garbage storage pit body.

2. The auxiliary defrosting device according to claim 1, characterized in that, Also includes: The power generation unit is connected to the flue gas outlet of the waste incinerator body via the second accommodating space.

3. The auxiliary defrosting device according to claim 2, characterized in that, Also includes: The condenser section is connected to the second accommodating space; The condenser section is used to process the flue gas discharged into the condenser section from the second accommodating space.

4. The auxiliary defrosting device according to claim 3, characterized in that, The reaction section includes: The first housing has a hollow interior forming the first accommodating space, and both the first and second sides opposite to the first housing have openings communicating with their interiors. A cover plate, the cover plate being disposed on the opening on the first side of the first housing; The second housing is fitted onto the side wall between the two openings of the first housing and encloses the first housing. The interlayer between the second housing and the first housing forms the second receiving space. The second housing has an air inlet and an air outlet. The air inlet is located on one side of the first housing, and the air outlet is located on the other side of the first housing opposite to the first side. The air inlet is connected to the flue gas outlet of the power generation unit and the waste incinerator body in sequence through a first pipeline. The air outlet is connected to the condensation unit through a second pipeline. The opening on the second side of the first housing is connected to the conveying unit and the spraying unit in sequence through a third pipeline.

5. The auxiliary defrosting device according to claim 4, characterized in that, The reaction section further includes: A permeation plate is disposed within the first accommodating space and divides the first accommodating space into a stacked product space and a storage space. Both the storage space and the product space are connected to the opening on the first side of the first housing, and the product space is connected to the opening on the second side of the first housing. The permeation plate has multiple through holes, which are arranged at intervals on the permeation plate, and the storage space and the product space are connected through the through holes.

6. The auxiliary defrosting device according to claim 5, characterized in that, The conveying unit is a conveying pump.

7. The auxiliary defrosting device according to claim 6, characterized in that, The spraying unit includes: Multiple nozzles, each with its input end connected to the delivery pump via the third pipeline, and each nozzle's output end corresponding to a different area within the waste storage pit.

8. The auxiliary defrosting device according to claim 5, characterized in that, The power generation unit is a steam turbine.

9. The auxiliary defrosting device according to claim 5, characterized in that, The condensation section is a condenser tube.

10. The auxiliary defrosting device according to claim 5, characterized in that, Valves are provided on the first pipeline between the second accommodating space and the power generation unit, on the second pipeline, and on the third pipeline between the second accommodating space and the conveying unit.