Improved waste incineration power plant

Abstract

The invention discloses an improved waste incineration power plant which comprises a waste transportation channel, a waste loading and unloading area, a boiler area and a new smoke area which are sequentially arranged. A discharging door is arranged between the garbage loading and unloading area and the garbage transporting channel, when the discharging door is opened, the garbage transporting vehicle transports garbage into the garbage loading and unloading area through the garbage transporting channel, a remote control loader and a feeding mechanism are arranged in the garbage loading and unloading area, and the feeding mechanism is connected with the boiler area. The remote control loader is used for loading garbage into the feeding mechanism, and the feeding mechanism is used for conveying the garbage to a boiler area for incineration; and incineration flue gas generated by the boiler area is discharged through the new flue gas area. The system has the characteristics of function optimization, small occupied area, low construction cost and the like, fully considers the condition of small garbage tonnage in small and medium-sized towns and underdeveloped regions, and furthest realizes that the garbage incineration power plants can be constructed in the small and medium-sized towns and the underdeveloped regions.

Description

Technical Field

[0001] The present invention relates to the technical field of waste incineration, and in particular to an improved waste incineration power plant. Background Art

[0002] With the rapid advancement of urbanization, the amount of municipal solid waste in cities has surged. Based on the principle of adapting to local conditions, people are gradually and are currently selecting safe, reliable, advanced, environmentally friendly, land-saving, energy-saving, and economical waste treatment technologies, hoping to establish harmless treatment capacity commensurate with the volume of municipal solid waste generated. Waste treatment has evolved from composting and sanitary landfill to clean incineration for power generation, heat generation, or combined heat and power. This has achieved a systematic solution that synergizes waste reduction, harmless treatment, and resource utilization. Over the past decade, the number of waste incineration plants worldwide has increased rapidly, with East Asia accounting for the largest share, followed by Europe, North America in third place, and Southeast Asia rapidly increasing, with a sporadic presence in other regions. Globally, incineration-based power generation processes over 300 million tons of waste annually. my country has become the world's largest waste incineration market. By the end of 2024, the total number of waste-to-energy plants in China will reach 1,064, with a daily processing capacity of 1.2 million tons.

[0003] However, standard waste-to-energy incineration plants are not suitable for all cities and regions. A key characteristic is the recent intensive construction of waste incineration plants in large and megacities and developed regions, resulting in overcapacity, an average operating load of only 60%, and a waste growth rate that lags behind capacity expansion. Some small and medium-sized cities and sparsely populated areas, due to low waste tonnage or long transportation distances, are unable to construct waste incineration plants. This results in outdated waste treatment technology and the continued use of landfills. Most importantly, the high investment required to build waste incineration plants undoubtedly places a significant strain on small and medium-sized cities, a key factor in the continued lack of waste incineration in these cities and underdeveloped regions.

[0004] Therefore, it is necessary to improve the design of existing waste incineration plants so that their investment can be greatly reduced, so that small and medium-sized towns and underdeveloped areas can also build waste incineration plants, thereby reducing waste disposal subsidies and electricity costs.

[0005] like Figure 1 and Figure 2 As shown, the existing waste incineration power plant design has many shortcomings and deficiencies, such as: (1) There are many functional areas and the area is large. The functional areas of the main plant of a general waste incineration power plant include the unloading hall 1, the garbage pit area 3, the boiler area 16, the ash storage 7, the raw flue gas area 23, the steam turbine area, etc. Taking a project with a daily processing capacity of 1,000 tons / day as an example (the following examples all use a daily processing capacity of 1,000 tons / day as the reference condition for the incineration plant), the area is about 5 hectares to 8 hectares.

[0006] (2) Each functional area is extremely high and has a large span, resulting in a long construction period. For example, a project with a daily processing capacity of 1,000 tons would take more than two years to build. To prevent corrosion and odor leakage, the garbage pit area is constructed with reinforced concrete. Due to its high height, the construction period is long. From the start to completion, a garbage pit takes 10 months to one year. In addition, the construction cost is high, costing approximately RMB 40 million.

[0007] (3) Large area and high total height. Taking the garbage pit area and boiler area as an example, the garbage pit not only occupies a large area, but also has a garbage storage pit depth of about 32 meters. In addition to the need to install a garbage crane, the total height of the garbage pit area reaches about 48 meters. In addition to occupying a large area, the boiler area has a total height of more than 50 meters.

[0008] (4) In the ash slag storage 7, apart from the slag pit and slag crane 11 to solve the slag discharge problem, the other steel frames used to support the waste heat boilers did not play a significant role. However, the construction of the ash slag storage 7 took a lot of time, requiring 6 months of construction time, and the construction cost was high, reaching about 10 million RMB.

[0009] (5) High construction costs. Depending on the level of regional development, the construction cost ranges from RMB 400 million to RMB 800 million per 1,000 tons per day. The high construction cost increases the waste disposal subsidy and electricity access fees, making it unaffordable for small and medium-sized towns and underdeveloped areas.

[0010] (6) Traditional waste incineration plants are designed with a single fuel in mind: domestic waste. This has led to a situation where incineration plants in developed regions and areas with excess capacity are unable to meet their capacity requirements. Small and medium-sized towns and underdeveloped areas have low waste volumes, with a daily tonnage of less than 300 tons, placing them somewhere between feasible and unviable, creating difficulties for industry professionals. Summary of the Invention

[0011] The technical problem to be solved by the present invention is to provide an improved waste incineration power plant with optimized functional layout, reduced floor space, and lowered plant height to shorten construction period and reduce construction costs in response to the above-mentioned shortcomings of existing waste incineration power plants.

[0012] In order to solve the above technical problems, the technical solution adopted by the present invention is: An improved waste incineration power plant comprises a waste transport channel, a waste loading and unloading area, a boiler area and a new flue gas area arranged in sequence; a discharge door is provided between the waste loading and unloading area and the waste transport channel; when the discharge door is opened, a waste transport truck transports waste to the waste loading and unloading area via the waste transport channel; a remote-controlled loader and a feeding mechanism are provided in the waste loading and unloading area; the feeding mechanism is connected to the boiler area; the remote-controlled loader is used to load waste into the feeding mechanism; the feeding mechanism is used to transport waste to the boiler area for incineration; the incineration flue gas generated in the boiler area is discharged via the new flue gas area.

[0013] As a further improvement of the present invention, the boiler area includes an incinerator, the feeding mechanism is connected to the feeding port of the incinerator, and the flue gas outlet of the incinerator is connected to the new flue gas area.

[0014] As a further improvement of the present invention, the feeding mechanism is a receiving hopper or a combination of a receiving hopper and a bucket elevator.

[0015] As a further improvement of the present invention, the new flue gas zone includes a waste heat boiler and a horizontal flue, the inlet of the waste heat boiler is connected to the incinerator, and the horizontal flue is connected to the outlet of the waste heat boiler.

[0016] As a further improvement of the present invention, the boiler area also includes a slag discharge area located below the horizontal flue, the slag discharge area is provided with a slag crane, and the slag discharge area is connected to the slag discharge port of the incinerator; the slag discharge area adopts a closed structure, and the entrance and exit of the slag discharge area are provided with a sealed quick-closing door.

[0017] As a further improvement of the present invention, the waste heat boiler and the horizontal flue are installed on the upper part of the steel frame, and the slag crane is installed on the steel track beam at the lower part of the steel frame; the steel frame is set on the 0-meter layer.

[0018] As a further improvement of the present invention, the roof of the garbage loading and unloading area is made of thin ultra-high performance concrete slabs; the bottom plate of the garbage loading and unloading area is made of an impermeable concrete raft slab or a beam-slab structure on a frame column.

[0019] As a further improvement of the present invention, the wall of the garbage loading and unloading area adopts a supporting structure composed of guard wall columns and frame beams, and the wall is an anti-seepage concrete wall.

[0020] As a further improvement of the present invention, the two ends of the garbage loading and unloading area are divided into stacking areas, wherein the stacking area at one end is used for stacking fresh garbage, and the stacking area at the other end is used for garbage fermentation; the feeding mechanism is located in the middle of the garbage loading and unloading area, and the feeding mechanism and the unloading door are arranged on opposite sides of the garbage loading and unloading area.

[0021] As a further improvement of the present invention, the garbage transportation channel is a closed channel, and a sealed quick-closing door is provided at the entrance of the garbage transportation channel.

[0022] Compared with the prior art, the advantages of the present invention are: 1. The improved waste incineration power plant of the present invention eliminates the original unloading hall and converts it into a garbage transportation channel. The original garbage pit area is also converted into a garbage loading and unloading area. Since the unloading hall and garbage pit area are eliminated, the garbage crane is also eliminated accordingly, which significantly reduces the civil construction cost and the purchase cost of the garbage crane equipment. A garbage loading and unloading area and a garbage transportation channel are provided. Garbage trucks unload garbage into the garbage loading and unloading area through the garbage transportation channel. A remote-controlled loader in the garbage loading and unloading area feeds the garbage into a feeding mechanism, which then feeds the garbage into the boiler area for incineration. The flue gas generated by the incineration is discharged into the flue gas treatment system at the back end through the new flue gas area. The present invention significantly optimizes and adjusts the structural design of each functional area of ​​the municipal solid waste incineration power plant, reduces the overall height of the entire plant, and eliminates unnecessary or unreasonable designs. This achieves the purpose of significantly reducing investment and shortening the construction period while still retaining all functions. It also takes into account the small tonnage of garbage in small and medium-sized towns and underdeveloped areas, and maximizes the ability to build waste incineration power plants in small and medium-sized towns and underdeveloped areas.

[0023] 2. The improved waste incineration power plant of the present invention eliminates the original ash storage located below the horizontal flue of the waste heat boiler, and eliminates the ash pit and slag crane in the ash storage. The original steel frame of the waste heat boiler is placed directly on the 0-meter layer instead of on the platform of the ash storage. After the original three-layer reinforced concrete frame structure in the ash storage is completely eliminated, the slag crane is installed on the steel frame of the waste heat boiler between the original ash platform height and the 0-meter layer, which significantly reduces the overall height of the boiler area and the new smoke area, greatly reduces the civil engineering cost, and significantly shortens the construction period. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The following is a schematic diagram of the cross-sectional structure of an existing waste incineration power plant; a single furnace with a waste treatment capacity of 1,000 tons / day is used as a reference, and the following are the same; Figure 2 This is a schematic diagram of the plan structure of an existing waste incineration power plant; Figure 3 This is a schematic diagram of the cross-sectional structure principle of the improved waste incineration power plant in a specific embodiment of the present invention; wherein, there is a large height difference between the waste loading and unloading area and the 0-meter layer; Figure 4 This is a schematic diagram of the cross-sectional structure principle of the improved waste incineration power plant in a specific embodiment of the present invention; wherein there is a small height difference between the waste loading and unloading area and the 0-meter layer; Figure 5 This is a schematic diagram of the planar structural principle of an improved waste incineration power plant in a specific embodiment of the present invention; Figure 6This is a schematic diagram of the planar structural principle of the garbage transportation channel in a specific embodiment of the present invention; Figure 7 This is a schematic diagram of the cross-sectional structure principle of the garbage transportation channel in a specific embodiment of the present invention; Figure 8 This is a schematic diagram of the planar structural principle of the garbage loading and unloading area in a specific embodiment of the present invention; Figure 9 This is a schematic diagram of the cross-sectional structure principle of the garbage loading and unloading area in a specific embodiment of the present invention; wherein, there is a large height difference between the garbage loading and unloading area and the 0-meter layer; Figure 10 This is a schematic diagram of the cross-sectional structure principle of the garbage loading and unloading area in a specific embodiment of the present invention; wherein, there is a small height difference between the garbage loading and unloading area and the 0-meter layer; Figure 11 This is a schematic diagram of the cross-sectional structure principle of the entire boiler area in a specific embodiment of the present invention; Figure 12 This is a schematic diagram of the planar structural principle of the new smoke zone in a specific embodiment of the present invention; Legend: 1. Unloading hall; 2. Garbage transport channel; 3. Garbage pit area; 4. Garbage loading and unloading area; 5. Waste heat boiler; 6. Horizontal flue; 7. Ash storage; 8. Steel frame; 9. Three-layer reinforced concrete frame; 10. 0-meter layer; 11. Slag crane; 12. Slag discharge area; 13. Incinerator; 14. Receiving hopper; 15. Third channel; 16. Boiler area; 17. Garbage crane; 18. Remote control loader; 19. Bucket elevator; 20. Floor elevation; 21. Natural ground of loading and unloading area; 22. Natural ground of boiler area; 23. Original flue gas area; 24. Unloading door; 25. New flue gas area; 26. Stacking area; 27. Small hole; 28. Collection ditch. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific preferred embodiments, but the scope of protection of the present invention is not limited thereby.

[0026] In the description of the present invention, it should be understood that the terms "side", "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0028] Example like Figure 3 、 Figure 4 and Figure 5 As shown, the improved waste incineration power plant of the present invention includes a garbage transportation channel 2, a garbage loading and unloading area 4, a boiler area 16 and a new flue gas area 25 arranged in sequence. A discharge door 24 is provided between the garbage loading and unloading area 4 and the garbage transportation channel 2. When the discharge door 24 is opened, the garbage truck transports the garbage to the garbage loading and unloading area 4 through the garbage transportation channel 2. A remote-controlled loader 18 and a feeding mechanism are provided in the garbage loading and unloading area 4. The feeding mechanism is connected to the boiler area 16. The remote-controlled loader 18 is used to load the garbage into the feeding mechanism, and the feeding mechanism is used to transport the garbage to the boiler area 16 for incineration; the incineration flue gas generated by the boiler area 16 is discharged through the new flue gas area 25. It can be understood that according to the conventional settings in this field, the rear end of the new flue gas area 25 will be connected to the flue gas purification treatment system, and the flue gas will be discharged only after it has been purified and met the standards.

[0029] like Figure 6 and Figure 7 As shown, the number of garbage transport passages 2 corresponds to the number of discharge doors 24. The garbage transport passages 2 are enclosed, and a sealed quick-closing door (not labeled) is provided at the entrance. In this embodiment, the garbage transport passages 2 have a width D1 of approximately 4.5 meters, a length L1 of approximately 15 meters, and a height H1 of approximately 7 meters.

[0030] In this embodiment, the unloading hall 1 and the garbage pit area 3 are eliminated, along with the garbage crane 17. This significantly reduces the construction and equipment costs of the garbage crane 17. Instead, a garbage loading and unloading area 4 and a garbage transport channel 2 are installed. The garbage loading and unloading area 4 retains its original functions of garbage fermentation and storage. Garbage trucks unload garbage into the garbage loading and unloading area 4 via the garbage transport channel 2. A remote-controlled loader 18 within the garbage loading and unloading area 4 feeds the garbage into a feeding mechanism, which in turn feeds the garbage into the boiler area 16 for incineration. The resulting flue gas is discharged through the new flue gas area 25 to the downstream flue gas treatment system. This invention significantly optimizes and adjusts the structural design of each functional area of ​​the municipal waste incineration power plant, reducing the overall height of the plant and eliminating unnecessary or unreasonable design features. This significantly reduces investment and shortens the construction period while retaining all functions. Furthermore, this invention takes into account the low tonnage of garbage in small and medium-sized towns and underdeveloped areas, maximizing the ability to build waste incineration power plants in these areas.

[0031] like Figure 3 and Figure 4 As shown, boiler area 16 includes an incinerator 13, with a feeding mechanism connected to the feeding port of incinerator 13. Fresh flue gas area 25 includes a preheating boiler 5 and a horizontal flue 6. The preheating boiler 5 is provided with a first channel, a second channel, and a third channel 15. The first channel of the preheating boiler 5 is connected to the incinerator 13, and the horizontal flue 6 is connected to the third channel 15 of the preheating boiler 5. An evaporator heating surface is added in the depth direction of the horizontal flue 6 to ensure that the flue gas inlet temperature of the third-stage superheater of the back-end flue gas purification system reaches the design value.

[0032] like Figure 3 and Figure 4 As shown, in this embodiment, the boiler area 16 also includes a slag discharge area 12 located below the horizontal flue 6. This area is equipped with a slag crane 11 and is connected to the slag outlet of the incinerator 13. To prevent the escape of ash odor and mist, the slag discharge area 12 is sealed with lightweight, corrosion-resistant materials. A slag loading vehicle is located at the entrance to the slag discharge area 12. When the slag loading vehicle approaches the slag discharge area 12, the quick-closing door of the slag discharge area 12 opens, and slag is loaded into the vehicle via the slag crane 11. After the slag loading vehicle leaves, the quick-closing door closes and seals the slag discharge area 12.

[0033] Compared to existing waste incineration power plants, this embodiment eliminates the three-layer reinforced concrete frame 9 of the original ash and slag storage 7. Instead of resting on the top plate of the ash and slag storage 7, the supporting steel frame 8 rests directly on the zero-meter layer 10. The horizontal flue 6 and waste heat boiler 5 are mounted on either side of the upper portion of the steel frame 8, and the slag crane 11 is mounted on a steel track beam (not shown) at the lower portion of the steel frame 8. To ensure the required rigidity and strength of the steel frame 8, an additional layer of steel beams is added at each certain height to connect to the vertical steel columns, reducing the slenderness ratio of the steel columns and meeting the required rigidity.

[0034] In this embodiment, after the improved design, the three-layer reinforced concrete frame 9 is eliminated, so that the elevation of the third channel outlet 15 of the waste heat boiler 5 is reduced to below 29 meters, the total height of the horizontal flue 6 is reduced, and the elevation of the steel frame 8 at the top of the horizontal flue 6 is reduced from the original elevation of about 45 meters to about 33 meters. The evaporator heating surface is added in the depth direction of the horizontal flue 6 to make the flue gas temperature at the inlet of the three-stage superheater reach the design value. After the improved design, the total height H3 of the incinerator 13 and the waste heat boiler 5 is reduced from 50m to 45m. The boiler area 16 after the improved design only contains the incinerator 13 part, such as Figure 12 As shown, the width D3 of the boiler area 16 after the improved design is about 20m and the length L3 is about 45m.

[0035] like Figure 4 As shown, when the bottom of the garbage loading and unloading area 4 is located below the incinerator 13, the feeding mechanism is the receiving hopper 14 and the bucket elevator 19. Figure 3 As shown, when the bottom of the garbage loading and unloading area 4 is located above the incinerator 13, the feeding mechanism is the receiving hopper 14. In this embodiment, by optimizing the design of the slag hopper of the incinerator 13, the elevation of the incinerator 13 is lowered by approximately 2 meters, which in turn reduces the overall elevation of the garbage receiving hopper 14 by approximately 4 meters, and simultaneously reduces the height of the garbage loading and unloading area.

[0036] Specifically, the floor elevation 20 of the garbage loading and unloading area 4 is determined based on the terrain. When the natural ground level 21 of the loading and unloading area is significantly higher than the natural ground level 22 of the boiler area, and the height difference between the floor elevation 20 of the garbage loading and unloading area 4 and the receiving hopper 14 is not much, the remote-controlled loader 18 is used to directly load the garbage into the receiving hopper 14. When the height difference between the natural ground level 21 of the loading and unloading area and the natural ground level 22 of the boiler area is not much, and the height difference between the receiving hopper 14 and the floor elevation 20 of the garbage loading and unloading area 4 is significant, the remote-controlled loader 18 is used to load the garbage into the bucket elevator 19, which then transports the garbage vertically into the receiving hopper 14.

[0037] like Figure 11 As shown, after the height of the waste heat boiler area 5 is reduced to about 33m, Figure 1 The height of the original flue gas zone 23 is basically the same, and the waste heat boiler zone 5 and the original flue gas zone 23 can be merged into a new flue gas zone 25. Figure 12 As shown, the new flue gas zone 25 has a width D4 of about 33 m, a height H2 of about 33 m, and a length L4 of about 70 m.

[0038] In this embodiment, the horizontal structure and vertical walls of the garbage loading and unloading area 4 are still all designed with impermeable reinforced concrete. The two ends of the garbage loading and unloading area 4 are divided into storage areas 26. One end of the storage area 26 is used to store fresh garbage, while the other end of the storage area 26 is used for garbage fermentation. The feeding mechanism is located in the middle of the garbage loading and unloading area 4, and the feeding mechanism and unloading gate 24 are located on opposite sides of the garbage loading and unloading area 4.

[0039] The height of the plant is set according to the terrain conditions, such as Figure 8 As shown, the waste loading and unloading area 4 has a net height between 12m and 20m, a width D2 of approximately 36m, and a length L2 of approximately 60m. Aside from the area where the remote-controlled loader 18 operates, the remaining available storage space can accommodate approximately 5,000 tons of waste, meeting five days of waste storage and fermentation needs. By eliminating the original garbage crane 17 and replacing it with a remote-controlled loader 18 loading materials into a bucket elevator 19 or receiving hopper 14, the height of the waste loading and unloading area 4 has been reduced from the original 48-meter height of the waste pit to between 12 and 20 meters, significantly lowering the height of the original waste pit area 3. Furthermore, the elimination of the unloading hall 1 significantly shortened the construction period and reduced construction costs.

[0040] Furthermore, small holes 27 for receiving leachate are provided on the bottom plate of the garbage loading and unloading area 4 , and the leachate is collected centrally through a collecting ditch 28 below the small holes 27 .

[0041] To prevent odor from leaking from the roof, the roof of garbage loading and unloading area 4 is made of steel beams and ultra-high performance concrete roof panels. Two layers of waterproof membrane are laid on the roof panels to fully seal the roof.

[0042] In poor geological conditions, pile foundations are preferred; in conditions with high bearing capacity, raft foundations are preferred. The garbage loading and unloading area 4 also serves as the garbage pit area 3. When the bottom of the garbage loading and unloading area 4 is located below the incinerator 13, the floor of the garbage loading and unloading area 4 is constructed using an impermeable concrete raft. When the bottom of the garbage loading and unloading area 4 is located above the incinerator 13, the floor of the garbage loading and unloading area 4 uses a beam-slab structure on frame columns.

[0043] In order to resist the lateral pressure during garbage stacking and prevent the overflow of odor, the wall of the garbage loading and unloading area 4 adopts a supporting structure composed of guard wall columns and frame beams, and the wall is an impermeable concrete wall.

[0044] In this embodiment, the specific steps of garbage disposal are: (1) Unloading of garbage: The garbage truck reverses into the garbage transport channel 2, the quick-closing door opens, and after reversing into the channel, the quick-closing door closes, the unloading door 24 opens, and the garbage truck unloads into the garbage loading and unloading area 4.

[0045] (2) A remote-controlled loader 18 scoops the garbage into the hopper and transports it to a stacking area 26 on one side for stacking. The height of the garbage stack near the receiving hopper 14 is about 7 meters, and the height near the discharge gate 24 is about 3 meters. The stacking area 26 is located at both ends of the garbage loading and unloading area 4. The discharge gate 24 and the receiving hopper 14 are on both sides of the middle of the garbage loading and unloading area 4. No garbage is stacked there, and it serves as a rotation area for the remote-controlled loader 18 to grab garbage and put it into the receiving hopper 14.

[0046] (3) The stacking areas 26 at both ends of the garbage loading and unloading area 4 are: one end of the stacking area 26 contains fermented garbage, which is picked up by a remote-controlled loader 18 and put into the receiving hopper 14 for incineration; the other end of the stacking area 26 contains fresh garbage, which is piled up and fermented by a remote-controlled loader 18. When the fermented garbage in the stacking area 26 at one end is burned, the fermented garbage in the stacking area 26 at the other end can be put into the receiving hopper 14 for incineration. The stacking area 26 for fresh garbage and the stacking area 26 for fermented garbage are interchangeable.

[0047] (4) There are two ways for garbage to enter the receiving hopper 14: Figure 9 As shown, when the floor elevation 20 of the garbage loading and unloading area 4 is not much different from the elevation of the receiving hopper 14, the remote-controlled loader 18 is used to directly load and unload the garbage into the receiving hopper 14; Figure 10 As shown, when the floor elevation 20 of the garbage loading and unloading area 4 differs significantly from the elevation of the receiving hopper 14, exceeding the height of the receiving hopper 14, a bucket elevator 19 is installed for vertical transportation. Specifically, a remote-controlled loader 18 grabs the garbage and places it into the bucket of the bucket elevator 19. After the bucket elevator 19 is vertically lifted to the receiving hopper 14, the bucket elevator 19 tilts its hopper to dump the garbage into the receiving hopper 14.

[0048] (5) The treatment process after the garbage enters the receiving hopper 14 is the same as that in the existing waste incineration power plant and will not be described in detail here.

[0049] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An improved waste incineration power plant, characterized in that: The invention comprises a garbage transport passage (2), a garbage loading and unloading area (4), a boiler area (16) and a new flue gas area (25) which are arranged in sequence; a discharge door (24) is provided between the garbage loading and unloading area (4) and the garbage transport passage (2); when the discharge door (24) is opened, the garbage transport vehicle transports the garbage to the garbage loading and unloading area (4) via the garbage transport passage (2); a remote-controlled loader (18) and a feeding mechanism are provided in the garbage loading and unloading area (4); the feeding mechanism is connected to the boiler area (16); the remote-controlled loader (18) is used to load the garbage into the feeding mechanism; the feeding mechanism is used to transport the garbage to the boiler area (16) for incineration; the incineration flue gas generated by the boiler area (16) is discharged via the new flue gas area (25).

2. The improved waste incineration power plant according to claim 1, characterized in that: The boiler area (16) includes an incinerator (13), the feeding mechanism is connected to the feeding port of the incinerator (13), and the flue gas outlet of the incinerator (13) is connected to the new flue gas area (25).

3. The improved waste incineration power plant according to claim 2, characterized in that: The feeding mechanism is a receiving hopper (14) or a combination of a receiving hopper (14) and a bucket elevator (19).

4. The improved waste incineration power plant according to claim 2, characterized in that: The new flue gas zone (25) includes a waste heat boiler (5) and a horizontal flue (6), the inlet of the waste heat boiler (5) is connected to the incinerator (13), and the horizontal flue (6) is connected to the outlet of the waste heat boiler (5).

5. The improved waste incineration power plant according to claim 4, characterized in that: The boiler area (16) further includes a slag discharge area (12) located below the horizontal flue (6), the slag discharge area (12) is provided with a slag hanger (11), and the slag discharge area (12) is connected to the slag discharge port of the incinerator (13); the slag discharge area (12) adopts a closed structure, and the entrance and exit of the slag discharge area (12) are provided with a sealed quick-closing door.

6. The improved waste incineration power plant according to claim 5, characterized in that: The waste heat boiler (5) and the horizontal flue (6) are installed on the upper part of the steel frame (8), and the slag crane (11) is installed on the steel track beam at the lower part of the steel frame (8); the steel frame (8) is set on the 0-meter layer (10).

7. The improved waste incineration power plant according to any one of claims 1 to 6, characterized in that: The roof of the garbage loading and unloading area (4) is made of thin ultra-high performance concrete slabs; the bottom plate of the garbage loading and unloading area (4) is made of an impermeable concrete raft slab or a beam-slab structure on a frame column.

8. The improved waste incineration power plant according to any one of claims 1 to 6, characterized in that: The wall of the garbage loading and unloading area (4) adopts a support structure composed of a combination of a wall column and a frame beam, and the wall is an impermeable concrete wall.

9. The improved waste incineration power plant according to any one of claims 1 to 6, characterized in that: The two ends of the garbage loading and unloading area (4) are divided into stacking areas (26), wherein the stacking area (26) at one end is used for stacking fresh garbage, and the stacking area (26) at the other end is used for garbage fermentation; the feeding mechanism is located in the middle of the garbage loading and unloading area (4), and the feeding mechanism and the unloading door (24) are arranged on two opposite sides of the garbage loading and unloading area (4).

10. The improved waste incineration power plant according to any one of claims 1 to 6, characterized in that: The garbage transport channel (2) is a sealed channel, and a sealed quick-closing door is provided at the entrance of the garbage transport channel (2).

Images