A combined arrangement of a waste incineration power plant and a method of use

Abstract

The application discloses a combined arrangement of a garbage incineration power plant and a use method, and belongs to the technical field of power plant arrangement. The power plant comprises a comprehensive plant, a steam turbine room and a central control building; the comprehensive plant comprises a garbage unloading room, a garbage storage room, a boiler room and a flue gas purification room; the garbage unloading room is located at the end of the whole garbage incineration power plant, and the garbage storage room is arranged behind the garbage unloading room; the boiler room is arranged behind the garbage storage room; the flue gas purification room is arranged behind the boiler room; the steam turbine room and the central control building are combined and arranged on the side of the comprehensive plant; the steam turbine room is arranged on one side of the boiler room; the central control building is arranged on one side of the garbage unloading room and the garbage storage room; and the steam turbine room is arranged behind the central control building. According to the application, the process system function is organically combined with architectural design, the layout is compact, the space utilization rate is high, and the civil engineering quantity is greatly reduced.

Description

Technical Field

[0001] This invention relates to the field of power plant layout technology, specifically to a combined waste incineration power plant and its usage method. Background Technology

[0002] Currently, the amount of household and industrial waste is constantly increasing. Therefore, the proper disposal of waste plays an extremely important role in protecting the ecology and environment. Waste-to-energy incineration is an advanced and environmentally friendly method of urban waste treatment. Through incineration, solid waste is fully oxidized and decomposed, achieving the goals of reducing volume, removing toxicity, recovering energy, and manufacturing by-products. It has the advantages of thorough harmlessness, high resource utilization, and minimal secondary pollution. At the same time, the heat generated by waste incineration can be used to generate electricity, further realizing the resource utilization of waste, saving energy, and conforming to the technological development direction of solid waste prevention, reduction, resource utilization, and harmlessness.

[0003] Among existing waste-to-energy incineration technologies, grate incinerators are the most widely used option for newly built waste-to-energy plants due to their advantages such as strong adaptability to waste, fewer malfunctions, thorough treatment, good environmental performance, and lower cost. The integrated plant building is the core production building of a waste-to-energy incineration plant. Its architectural design requires a highly centralized process layout, shielding against waste odors, and presenting a positive environmental image to the public. In a conventional grate incinerator integrated plant building, the waste unloading area is located at one end, employing a reinforced concrete vertical frame structure with a large-span steel truss roof. The waste storage area is adjacent to the unloading area, with a reinforced concrete frame structure above and a reinforced concrete waste pool at the bottom, also with a large-span steel truss roof. Behind the waste storage area is the boiler room, separated by expansion joints. The system uses steel lattice columns to support the steel grid roof, and the enclosure is made of insulated profiled steel sheets. Finally, the flue gas purification room is constructed using a steel lattice column-supported steel grid roof, enclosed by insulated profiled steel sheets. The turbine hall and central control building are separated from the four workshops of the aforementioned integrated plant by expansion joints, and all systems utilize reinforced concrete frame structures. The typical integrated plant layout for a grate incinerator, based on process functions, includes a waste unloading area, waste storage area, boiler room, flue gas treatment area, leachate treatment room, and auxiliary production workshops. The overall structure comprises reinforced concrete frames, waste pool walls, steel lattice columns, large-span steel trusses, and steel grids, exhibiting complex structural forms and characteristics of industrial buildings such as large spaces, large spans, and highly irregular shapes. Therefore, conventional waste-to-energy incineration plants suffer from problems such as excessively large plant dimensions and substantial civil engineering work. Summary of the Invention

[0004] To address the problems of excessively large floor plan dimensions and large amount of civil engineering work in conventional waste incineration power plants in existing technologies, this invention provides a combined waste incineration power plant that organically integrates the functions of the process system with the architectural design, resulting in a compact layout, high space utilization, and a significant reduction in the amount of civil engineering work.

[0005] To achieve the above objectives, the present invention provides the following technical solution.

[0006] A combined waste-to-energy incineration plant includes a main plant, a turbine hall, and a control building. The main plant includes a waste unloading area, a waste storage area, a boiler room, and a flue gas purification room. The waste unloading area is located at one end of the entire waste-to-energy incineration plant, and the waste storage area is located behind the waste unloading area. The boiler room is located behind the waste storage area. The flue gas purification room is located behind the boiler room. The turbine hall and the control building are combined and arranged on the side of the main plant. The turbine hall is located on one side of the boiler room. The control building is located on one side of the waste unloading area and the waste storage area. The turbine hall is located behind the control building.

[0007] As a further improvement of the present invention, the waste storage room includes a waste pool; the waste pool is located in the lower area of ​​the waste storage room; and the central control building is located on one side of the waste pool.

[0008] As a further improvement of the present invention, the walls of the waste pool are made of reinforced concrete slabs.

[0009] As a further improvement of the present invention, the waste unloading room includes a facility room and an unloading hall; the facility room is located below the unloading hall.

[0010] As a further improvement of the present invention, the facility room is a reinforced concrete frame structure; the unloading hall is a reinforced concrete frame structure.

[0011] As a further improvement of the present invention, the roof of the waste unloading room is enclosed by solid steel beams and lightweight profiled steel sheets.

[0012] As a further improvement of the present invention, the waste storage room and the boiler room are connected as an integral structure.

[0013] As a further improvement of the present invention, the boiler room and the flue gas purification room adopt a reinforced concrete frame structure; the roof of the boiler room and the flue gas treatment room is enclosed by a steel pipe truss and a lightweight profiled steel sheet.

[0014] As a further improvement of the present invention, the turbine hall adopts a reinforced concrete frame structure, and the roof of the turbine hall is enclosed by solid web steel beams and lightweight profiled steel sheets.

[0015] A method of using a combined waste-to-energy incineration plant includes:

[0016] The garbage is transported by garbage trucks to the power plant's main building, where it is unloaded at the unloading room and sent to the garbage storage room. The central control building controls the garbage storage room to send the garbage to the boiler room according to the power generation task. The turbine room provides driving force to the boiler room, enabling the boiler room to burn the garbage to generate electricity. The flue gas in the boiler room is treated in the flue gas purification room before being discharged into the atmosphere.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This invention discloses a combined waste-to-energy plant that eliminates the conventional passageway between the turbine hall and boiler room, integrating them into a single unit. Equipment is arranged within the original passageway area, reducing the main plant's floor plan dimensions. Furthermore, the flue gas purification room is adjacent to the boiler room, further reducing the plant's width. Simultaneously, the expansion joint between the control building and the waste storage area is eliminated, and the control building's structure is integrated with the waste pit, effectively improving the load-bearing capacity of the cantilevered end of the waste pit. Therefore, this invention satisfies the reliability and environmental friendliness requirements of each process system in the waste-to-energy plant, prevents secondary pollution, and improves convenience. It also offers advantages such as resource conservation, compact layout, high space utilization, aesthetic appeal, and low cost. This invention solves the problems of excessively large plant floor plans and extensive civil engineering work in conventional waste-to-energy plants. Attached Figure Description

[0019] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of the invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely schematic to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. In the drawings:

[0020] Figure 1 This is a cross-sectional view of a waste-to-energy plant with a combined layout according to the present invention.

[0021] Figure 2 This is a building plan of a waste-to-energy incineration plant with a combined layout according to the present invention;

[0022] Figure 3 This is a plan view of the boiler and flue gas purification room of a waste incineration power plant arranged in a combined manner according to the present invention.

[0023] Figure 4 This is a cross-sectional view of the boiler and flue gas purification room of a waste incineration power plant with a combined arrangement according to the present invention.

[0024] Figure 5This is a plan view of the turbine hall of a waste incineration power plant with a combined layout according to the present invention;

[0025] Figure 6 This is a cross-sectional view of the turbine hall of a waste-to-energy plant with a combined layout according to the present invention.

[0026] In the diagram, 1 is the waste unloading room; 11 is the facility room; 12 is the unloading hall; 121 is the unloading platform; 2 is the waste storage room; 3 is the boiler room; 4 is the flue gas purification room; 5 is the turbine room; 6 is the central control building; and 7 is the waste pool. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solutions of this invention, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this invention.

[0028] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] The present invention discloses a combined waste incineration power plant, comprising a comprehensive plant, a turbine hall 5, and a central control building 6.

[0031] The integrated plant includes a waste unloading room 1, a waste storage room 2, a boiler room 3, and a flue gas purification room 4.

[0032] like Figure 1As shown, the waste unloading room 1 is located at the end of the entire waste-to-energy incineration plant, and the waste storage room 2 is adjacent to the waste unloading room 1, located behind it. The waste unloading room 1 has a two-story layout. The first floor is a facility room 11, which houses various facilities such as wastewater treatment, maintenance, storage, compressed air, and leachate collection and transportation. The second floor is the unloading hall 12. The waste storage room 2 mainly includes waste pits 7, waste grab cranes, waste hoppers, and other facilities for transferring waste.

[0033] Behind the waste storage room 2 is the boiler room 3, and behind the boiler room 3 is the flue gas purification room 4. The boiler room 3 is mainly composed of the incinerator and waste heat boiler, and is equipped with a hydraulic station, slag collection and transportation, boiler ash cleaning, start-up and shutdown and auxiliary combustion facilities, as well as other auxiliary facilities. The flue gas purification room 4 is equipped with facilities such as flue gas purification, induced draft fans, lime and activated carbon storage, and fly ash stabilization, which are used to purify the flue gas generated by the waste incineration power plant and release the treated flue gas into the air, so that the flue gas released into the air is pollution-free.

[0034] like Figure 2 As shown, the turbine hall 5 and the central control building 6 are jointly arranged on the side of the integrated plant building. The turbine hall 5 is located next to the boiler room 3, and the central control building 6 is located next to the waste unloading room 1 and the waste storage room 2, and next to the waste pool 7 at the bottom of the waste unloading room 1 and the waste storage room 2. The waste pool 7 is located at the bottom of the waste storage room 2. The front end of the turbine hall 5 is located at the rear end of the central control building 6, and the front end of the turbine hall 5 is adjacent to the rear end of the central control building 6. This layout is compact and saves a lot of horizontal and vertical space.

[0035] The control building 6 is attached to the garbage pit 7, which effectively improves the stress performance of the cantilever end of the garbage pit 7.

[0036] Turbine Room 5 mainly includes a large number of turbine auxiliary facilities, heating system facilities, water supply facilities, etc. Central Control Building 6 mainly includes the central control room, electrical equipment room, high / low voltage electrical equipment, public facilities, and production and office facilities.

[0037] In high-intensity seismic zones, the walls of the waste collection pits can be used as structural shear walls to improve the structure's seismic performance and save on component quantities. For extremely long structures, the effects of temperature can be considered through temperature stress calculations and structural measures.

[0038] Boiler room 3 is mainly used to house the grate incinerator, waste heat boiler and its auxiliary equipment. The reaction tower and dust collector are slightly offset from the center line of the incinerator, and the space saved is used to arrange auxiliary workshops. The passage between the conventional turbine room and boiler room is eliminated, and the turbine room 5 and boiler room 3 are connected as one unit. The original passage area is used to arrange equipment, reducing the floor plan size of the main plant.

[0039] like Figure 3 and Figure 4 As shown, the flue gas purification room 4 is adjacent to the boiler room 3. The waste heat boiler outlet flue is horizontally connected to the desulfurization tower inlet, raising the height of the reaction tower and eliminating the vertical flue arrangement, which greatly reduces the space occupied by the flue and the length of the workshop. At the same time, the wet desulfurization tower is arranged on one side of the dust collector, instead of following the conventional flue gas direction, effectively utilizing the side space of the dust collector. The induced draft fan is arranged on one side outside the SCR of the plant, reducing the width of the plant. Both the boiler room 3 and the flue gas purification room 4 adopt a reinforced concrete frame structure.

[0040] The expansion joint between the central control building 6 and the waste storage room 4 is eliminated, and the structure of the central control building 6 is fitted to the waste pool 7, which can effectively improve the stress performance of the cantilever end of the waste pool 7.

[0041] Furthermore, each workshop in this invention has an independent fire compartment and evacuation staircase. The vertical space is coordinated with the facade according to functional requirements, cleverly integrating and connecting the entire factory area into a whole. The enclosure is all enclosed by masonry, highlighting the solidity of the large-scale factory building.

[0042] The present invention will be further explained and illustrated below with reference to specific embodiments.

[0043] Example

[0044] The present invention discloses a combined waste incineration power plant, comprising a comprehensive plant, a turbine hall 5, a central control building 6, and a waste pool 7.

[0045] The integrated plant includes a waste unloading room 1, a waste storage room 2, a boiler room 3, and a flue gas purification room 4.

[0046] like Figure 1 and Figure 2 As shown, the axial dimensions of the waste unloading room 1 are 23m × 40m, the height of the unloading hall 12 is 8m, and the roof height of the waste unloading room 1 is 20.8m. The unloading hall 12 has a reinforced concrete frame structure below the unloading platform 121 and a reinforced concrete frame structure above the unloading platform 121. The roof of the waste unloading room 1 is enclosed with solid web steel beams and lightweight profiled steel sheets. A water treatment workshop is arranged under the unloading platform 121.

[0047] The axial dimensions of garbage storage room 2 are 35m × 40m, and the roof height of garbage storage room 2 is 40.35m; the dimensions of garbage pool 7 are 26m × 33m, with a depth of 5m underground and a height of 22m above ground. The pool wall of garbage pool 7 is made of reinforced concrete slab structure; the part of garbage storage room 2 above garbage pool 7 is a reinforced concrete frame structure; the roof of garbage pool 7 is made of steel pipe truss with pressure steel plate bottom formwork and lightweight concrete structure; a garbage grab crane is installed above garbage pool 7, with the rail top elevation of 29.4m.

[0048] like Figure 5 and Figure 6 As shown, the axial dimensions of boiler room 3 are 24m × 40m, the roof height of boiler room 3 is 53.65m, the longitudinal direction adopts a reinforced concrete frame structure, the transverse direction adopts a reinforced concrete frame structure, the roof adopts a steel pipe truss and lightweight profiled steel plate enclosure, and the garbage storage room 2 is connected to boiler room 3 as an integral structure.

[0049] The dimensions of flue gas treatment room 4 are 57.6m × 40m, and the roof height of flue gas treatment room 4 is 32.48m. The longitudinal direction adopts a reinforced concrete frame structure, and the transverse direction adopts a reinforced concrete frame structure. The roof is enclosed by steel pipe trusses and lightweight profiled steel sheets.

[0050] like Figure 5 and Figure 6 As shown, the turbine hall 5 has an axial dimension of 27.65m × 16m and adopts a reinforced concrete frame structure; the roof is enclosed by solid web steel beams and lightweight profiled steel sheets; the operating platform height is 7m, the crane rail top elevation is 14.2m, and the roof height is 18.57m; this invention eliminates the conventional passage between the turbine hall and the boiler room, connecting the turbine hall 5 and the boiler room 3 into one unit, making the layout of the waste incineration power plant more compact.

[0051] like Figure 2 As shown, the central control building 6 has an axial dimension of 49m × 16m, and adopts a reinforced concrete frame structure as well as cast-in-place reinforced concrete floors and roofs; the main building has three floors with a height of 12.45m; a partial five-story section with a height of 30.2m; this invention eliminates the deformation joint between the conventional central control building and the waste storage room, so that the structure of the central control building 6 fits snugly against the waste pool 6, which greatly improves the stress performance of the cantilever end of the waste pool 7 and enhances the stability of the waste incineration power plant.

[0052] The maximum length of the integrated factory building arranged in this invention is 140.2m, and the maximum width is 56m.

[0053] Compared to conventional solutions, the layout of the integrated factory building in this invention is more compact, significantly saving both horizontal and vertical space. Furthermore, the span, floor height, and layout of auxiliary production areas of the factory building can be adjusted according to the specific project requirements.

[0054] A second objective of this invention is to provide a method of using a combined waste-to-energy incineration plant, comprising:

[0055] Domestic waste is transported by enclosed garbage trucks to the waste unloading room 1 in the power plant for unloading. The unloaded waste is then sent to the waste pool 7 at the bottom of the waste storage room 2. The waste in the waste pool 7 is then sent to the boiler room 3 by a garbage grab crane installed in the waste storage room 2. The boiler room 3 uses the waste to generate electricity through combustion. The flue gas in the boiler room 3 is treated in the flue gas purification room 4 before being discharged into the atmosphere. The central control building 6 is used to monitor and control the entire waste incineration power generation process, and the turbine room 5 is used to convert the hot steam generated by waste incineration into electrical energy.

[0056] The heat released from the high-temperature combustion of waste in the incinerator of boiler room 3 heats water to generate steam. The steam drives a steam turbine generator to generate electricity. The flue gas produced by incineration is purified by the exhaust gas treatment device in flue gas purification room 4 before being discharged.

[0057] In summary, this invention addresses the problems of excessively large floor plan dimensions and extensive civil engineering work in conventional waste-to-energy incineration plants. It optimizes the overall layout by integrating process design, building function, architectural form, and structural system. This integrated layout of the waste-to-energy incineration plant meets the requirements for reliability, environmental friendliness (preventing secondary pollution), and convenience of each process system, while organically combining process system functions with architectural design. Furthermore, the span, floor height, and auxiliary production room layout of the plant can be adjusted according to specific project conditions. Therefore, this invention has advantages such as advanced technology, resource conservation, compact layout, high space utilization, aesthetic appeal, and low cost.

[0058] Many embodiments and applications beyond the examples provided will be apparent to those skilled in the art upon reading the foregoing description. Therefore, the scope of this teaching should not be determined by reference to the foregoing description, but rather by reference to the foregoing claims and the full scope of their equivalents. For purposes of completeness, all articles and references, including patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the foregoing claims is not intended as a waiver of that subject matter, nor should it be construed as an indication that the applicant has not considered that subject matter as part of the disclosed inventive subject matter.

[0059] The above content provides a further detailed description of the present invention. It should not be construed that the specific embodiments of the present invention are limited to this. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present invention, and all such deductions or substitutions should be considered to fall within the scope of protection of the present invention as defined by the submitted claims.

Claims

1. A combined waste-to-energy incineration plant, characterized in that, Including a comprehensive plant, a turbine hall (5) and a central control building (6); The integrated plant includes a waste unloading room (1), a waste storage room (2), a boiler room (3), and a flue gas purification room (4). The waste unloading room (1) is located at the end of the entire waste incineration power plant, and the waste storage room (2) is located behind the waste unloading room (1); the boiler room (3) is located behind the waste storage room (2); and the flue gas purification room (4) is located behind the boiler room (3). The turbine hall (5) and the central control building (6) are jointly arranged on the side of the integrated plant; The turbine room (5) is located on one side of the boiler room (3); the central control building (6) is located on one side of the garbage unloading room (1) and the garbage storage room (2); the turbine room (5) is located behind the central control building (6); The garbage storage room (2) includes a garbage pool (7); The garbage pit (7) is located in the lower area of ​​the garbage storage room (2); The central control building (6) is located on one side of the garbage pit (7); The waste unloading room (1) includes a facility room (11) and an unloading hall (12); The facility room (11) is located below the unloading hall (12); The waste storage room (2) and the boiler room (3) are connected as a whole structure; The boiler room (3) and flue gas purification room (4) are constructed with reinforced concrete frame structures. The roofs of the boiler room (3) and the flue gas purification room (4) are enclosed by steel pipe trusses and lightweight profiled steel sheets; The passageway between the conventional turbine hall and boiler room is eliminated, and the turbine hall and boiler room are connected as one unit. The equipment is arranged in the original passageway area, reducing the floor plan size of the main plant. The expansion joint between the central control building and the waste storage room is eliminated, and the structure of the central control building is fitted to the waste pool, which can effectively improve the stress performance of the cantilever end of the waste pool.

2. A combined waste-to-energy incineration plant according to claim 1, characterized in that, The walls of the garbage pit (7) are made of reinforced concrete slabs.

3. A combined waste-to-energy incineration plant according to claim 1, characterized in that, The facility room (11) is a reinforced concrete frame structure; The unloading hall (12) is a reinforced concrete frame structure.

4. A combined waste-to-energy incineration plant according to claim 1, characterized in that, The roof of the waste unloading room (1) is enclosed by solid steel beams and lightweight profiled steel sheets.

5. A combined waste-to-energy incineration plant according to claim 1, characterized in that, The turbine hall (5) adopts a reinforced concrete frame structure, and the roof of the turbine hall (5) is a solid web steel beam enclosed by a lightweight profiled steel plate.

6. A method of using a combined waste-to-energy incineration plant, based on a combined waste-to-energy incineration plant as described in any one of claims 1 to 5, characterized in that, include: The garbage is transported by garbage truck to the integrated plant of the power plant. The garbage is unloaded in the garbage unloading room (1) in the integrated plant and sent to the garbage storage room (2). The central control building (6) controls the garbage storage room (2) to send the garbage into the boiler room (3) according to the power generation task. The turbine room (5) provides driving force to the boiler room (3) so that the boiler room (3) can carry out combustion power generation through the garbage. The flue gas in the boiler room (3) will be treated in the flue gas purification room (4) and then discharged into the atmosphere.

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