Mechanical grate incinerator supporting structure combined with fluidized bed incinerator supporting structure
By combining the mechanical grate incinerator support structure with the fluidized bed incinerator support structure, the problem of large engineering workload and high investment when converting a fluidized bed incinerator into a mechanical grate incinerator is solved by utilizing the original building space, thus achieving efficient construction progress and economic benefits.
Patent Information
- Application Number
- CN202521028076.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-22
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-05-22
AI Technical Summary
When converting a fluidized bed incinerator into a mechanical grate incinerator, the complete demolition and reconstruction of the supporting structure involves a large amount of work, high investment, and a long construction period.
The mechanical grate incinerator support structure, which is combined with the fluidized bed incinerator support structure, adds a mechanical grate steel structure, including several mechanical grate steel columns and beams, to the fluidized bed furnace steel structure to support the front and rear sections of the incinerator grate and the insulated furnace wall, making use of the original building space and reducing the amount of engineering work.
It effectively reduces investment, shortens the construction period, ensures project quality, and improves construction progress, resulting in significant economic and environmental benefits.
Smart Images
Figure CN223924826U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a steel structure for a waste incinerator, specifically a mechanical grate incinerator support structure that is integrated with the support structure of a fluidized bed incinerator. Background Technology
[0002] Waste incineration is a new and environmentally friendly method of waste treatment, achieving harmlessness, resource recovery, and volume reduction. The waste treatment industry is also transforming from "extensive treatment" to "refined, environmentally friendly, and economical" methods. While fluidized bed incinerators offer advantages such as stable combustion, strong adaptability to varying waste types, and high thermal efficiency, they require the addition of high-power waste crushing devices to control the particle size of the incoming waste and to manage its moisture content to ensure combustion efficiency. Furthermore, fluidized bed incinerators require significant maintenance, impacting their annual operating time. Therefore, many companies have already converted or are planning to convert their fluidized bed incinerators to mechanical grate incinerators. However, because the support structure of fluidized bed incinerators differs from that of mechanical grate incinerators, completely dismantling and rebuilding the incinerator's support structure involves a large workload, substantial investment, and a long construction period. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the above-mentioned background technology and provide a mechanical grate incinerator support structure that combines a fluidized bed incinerator support structure. This mechanical grate incinerator support structure can effectively utilize the original fluidized bed incinerator support structure, so as to effectively reduce investment, reduce the amount of work, and improve the construction progress while ensuring the quality of the project.
[0004] The technical solution provided by this utility model is:
[0005] The mechanical grate incinerator support structure, which is integrated with the fluidized bed incinerator support structure, includes a civil engineering platform located at the front of the waste incinerator and supporting the material chute, feeding platform, and leachate collector, and a fluidized bed furnace steel structure located at the rear of the waste incinerator and supporting the rear wall maintenance platform and the insulated furnace wall. The characteristic feature is that it also includes a mechanical grate steel structure located between the front and rear sides of the waste incinerator and connecting the fluidized bed furnace steel structure to support the front incinerator grate, the middle incinerator grate, and the rear incinerator grate.
[0006] The mechanical grate steel structure includes at least two third mechanical grate steel columns vertically arranged on the ground and connected to the fluidized bed furnace steel structure by a number of medium steel beams arranged in the front-back direction; at least two second mechanical grate steel columns vertically arranged on the ground and connected to the third mechanical grate steel columns by a number of second short steel beams arranged in the front-back direction; at least two first mechanical grate steel columns vertically arranged on the civil engineering platform and connected to the second mechanical grate steel columns by a number of first short steel beams arranged in the front-back direction; and a number of short steel columns vertically arranged on the ground and connected to the third mechanical grate steel columns and the second mechanical grate steel columns by two long steel beams arranged in the front-back direction; the short steel columns include a fourth mechanical grate steel column, a fifth mechanical grate steel column, and a sixth mechanical grate steel column vertically fixed to the ground.
[0007] The civil engineering platform includes several vertically arranged civil engineering columns supported by the ground, several civil engineering beams connecting the several civil engineering columns from top to bottom, several floor slabs horizontally fixed on the several civil engineering beams, and civil engineering walls vertically arranged on the ground and connected to the several civil engineering beams; the fluidized bed furnace steel structure includes several vertically arranged fluidized bed furnace steel columns supported by the ground, and several fluidized bed furnace steel beams arranged in the front-to-back direction and connected to the several fluidized bed furnace steel columns in layers.
[0008] The civil engineering platform supports the material discharge chute and leachate collector; the crossbeams between the two first mechanical grate steel columns and the two second mechanical grate steel columns support the feeding platform; the crossbeams between the two second mechanical grate steel columns and the two third mechanical grate steel columns support the front incinerator grate and the corresponding insulation furnace wall; the crossbeams between the two third mechanical grate steel columns and the two fourth mechanical grate steel columns support the middle incinerator grate and the corresponding insulation furnace wall. The furnace wall; the crossbeams between the two fourth mechanical grate steel columns and the two fifth mechanical grate steel columns support the rear section incinerator grate and the corresponding heat-insulating furnace wall; the long steel beams simultaneously connect the sixth mechanical grate steel column, the fifth mechanical grate steel column, the fourth mechanical grate steel column, the third mechanical grate steel column, and the second mechanical grate steel column; the air chambers at the bottom of the front section incinerator grate, the middle section incinerator grate, and the rear section incinerator grate are all arranged in parallel and supported by the long steel beams.
[0009] The top of the civil engineering wall and the top of the civil engineering column are fixed with connecting brackets by pre-embedding. The periphery of the upper part of the material chute is installed on the civil engineering platform through the connecting brackets. The discharge port at the bottom of the material chute extends to the space of the next floor through the opening of the first floor slab of the civil engineering platform, thereby connecting with the feed inlet of the feeding platform. The leachate collector is installed on the third floor slab of the civil engineering platform. The leachate collection hopper of the leachate collector passes through the opening of the second floor slab of the civil engineering platform and connects with the leachate output end at the bottom of the feeding platform.
[0010] The insulated furnace wall at the ash outlet on the rear side of the grate of the rear incinerator is vertically installed and supported by short steel columns. The top and middle parts of the insulated furnace wall are connected to the fluidized bed furnace steel structure by horizontally arranged upper support beams and lower insulated support beams, respectively.
[0011] The material discharge chute, feeding platform, and leachate collector are sequentially arranged on several floor slabs distributed from top to bottom.
[0012] The fluidized bed furnace steel columns include a first fluidized bed furnace steel column, a second fluidized bed furnace steel column, and a third fluidized bed furnace steel column.
[0013] The beneficial effects of this utility model are as follows: by utilizing the robust support structure of the original fluidized bed incinerator, and through the adaptive connection and combination of the supplementary steel structure, not only can the project quality be fully guaranteed, but the original building space can also be utilized, greatly reducing the amount of work, improving the construction progress, and significantly reducing investment, resulting in significant economic and environmental benefits. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the main structure of an embodiment of this utility model.
[0015] Figure 2 This is a diagram showing the column base arrangement of an embodiment of this utility model.
[0016] Figure 3 This is a structural diagram of the waste incinerator supported by this utility model.
[0017] Figure 4 This is a diagram showing the usage state of this utility model (after installing the mechanical grate waste incinerator).
[0018] Figure 5 Main view of the original fluidized bed boiler support structure.
[0019] Figure 6 This is a schematic diagram of the mechanical grate steel structure added to the original design.
[0020] Figure 7 The third incinerator's steel structure column C and its connecting beams are in Figure 6 The left-side view.
[0021] Figure 8 The second incinerator's steel structure column b and its connecting beams are in Figure 6 The left-side view.
[0022] Figure 9 The first incinerator's steel structure column a and its connecting beams are in Figure 6 The left-side view.
[0023] Figure 10 The fourth incinerator's steel structure column d and its connecting beam are located in Figure 6 The left-side view.
[0024] Figure 11 The fifth incinerator's steel structure column e and its connecting beams are located in Figure 6 The left-side view.
[0025] Figure 12 The sixth incinerator's steel structure column and its connecting beams are located in... Figure 6 The left-side view.
[0026] Figure 13 yes Figure 1 Schematic diagram of the AA structure (- Support structure of the grate in the middle section of the incinerator).
[0027] Figure 14 This is a top view of the mechanical grate steel structure at an elevation range of 3700-3900.
[0028] Figure 15 This is a top view of the mechanical grate steel structure at elevation 6158.
[0029] Figure 16 This is a top view of the mechanical grate steel structure within the elevation range of 11110-11775.
[0030] Figure 17 This is a top view of the mechanical grate steel structure at an elevation range of 13700-17100.
[0031] Figure 18 This is a top view of the mechanical grate steel structure at the 19900 elevation.
[0032] The labels in the diagram are as follows: 1-Civil engineering platform; 2-Civil engineering column; 2.1-Civil engineering wall; 2.2-Floor slab; 3-Discharge chute; 4-Feeding platform; 5-Leachate collector; 6-Front-stage incinerator grate; 7-Middle-stage incinerator grate; 8-Rear-stage incinerator grate; 9-Insulated furnace wall; 10-Mechanical grate steel structure; 11-Fluidized bed furnace steel structure; 12-Rear wall maintenance platform; 13-Insulated upper support beam; 14-Insulated lower support beam.
[0033] A, b, c, d, e, and f are the steel columns of the first to the sixth mechanical grate furnace, respectively.
[0034] First short steel beam m, second short steel beam n, medium steel beam k, long steel beam p;
[0035] G1, G2, and G3 are the first to the third fluidized bed furnace steel columns, respectively. Detailed Implementation
[0036] The following description, in conjunction with the embodiments shown in the accompanying drawings, provides further details.
[0037] Figure 1 , Figure 4 The mechanical grate incinerator support structure shown includes a civil engineering platform 1 located in front of the waste incinerator and a fluidized bed furnace steel structure 11 located behind the waste incinerator.
[0038] like Figure 5 As shown, the civil engineering platform is located in front of the waste incinerator. Figure 1 , Figure 5 The left side is the front side), including several vertically fixed civil engineering columns 2 (for clarity, only part of the civil engineering platform, civil engineering wall and four civil engineering columns are shown in the figure), several civil engineering beams arranged in the front-back direction and fixed to several civil engineering columns from top to bottom, several floor slabs 2.2 respectively fixed horizontally to several civil engineering beams, and civil engineering walls 2.1 vertically fixed to the ground and connected to the front ends of several civil engineering beams. The fluidized bed furnace steel structure is located at the rear of the waste incinerator, including several fluidized bed furnace steel columns vertically fixed to the ground (six fluidized bed furnace steel columns are shown symmetrically arranged in the figure, namely two first fluidized bed furnace steel columns G1, two second fluidized bed furnace steel columns G2 and a third fluidized bed furnace steel column G3), and several fluidized bed furnace steel beams arranged in the front-back direction and fixed to several fluidized bed furnace steel columns from top to bottom in layers.
[0039] The above are all existing fluidized bed furnace support structures;
[0040] The improvement of this utility model is that it also includes a mechanical grate steel structure 10 located between the front and rear sides of the waste incinerator and connecting the fluidized bed furnace steel structure to support the front incinerator grate, the middle incinerator grate and the rear incinerator grate.
[0041] like Figure 1 , Figure 4 , Figure 5As shown: The mechanical grate steel structure 10 is constructed in conjunction with the aforementioned fluidized bed furnace steel structure, including at least two third mechanical grate steel columns c vertically arranged on the ground and connected to the fluidized bed furnace steel structure by several horizontally arranged medium steel beams k; at least two second mechanical grate steel columns b vertically arranged on the ground and connected to the third mechanical grate steel columns c by several horizontally arranged second short steel beams n; at least two first mechanical grate steel columns a vertically arranged on the civil engineering platform and connected to the second mechanical grate steel columns b by several horizontally arranged first short steel beams m; and several short steel columns vertically arranged on the ground and connected to the third mechanical grate steel columns c and the second mechanical grate steel columns b by two long steel beams p (as shown in the figure: the medium steel beams, second short steel beams, first short steel beams, and long steel beams are all arranged extending in the front-back direction); the several short steel columns include a fourth mechanical grate steel column d, a fifth mechanical grate steel column e, and a sixth mechanical grate steel column f. The mechanical grate steel structure is used to support the front incinerator grate 6, the middle incinerator grate 7, the rear incinerator grate 8, and the heat-insulating furnace wall 9; during installation and construction, only the brackets and fasteners connecting the civil engineering platform and the fluidized bed furnace steel structure need to be added.
[0042] This utility model utilizes the existing civil engineering platform to install the material chute 3, the feeding platform 4, and the leachate collector 5; as... Figure 4 The top of the civil engineering wall and the top of the civil engineering column are fixed with connecting brackets by pre-embedding. The perimeter of the upper part of the material chute is installed on the civil engineering platform through the connecting brackets. The lower part of the material chute extends to the space of the next floor through the opening of the first floor slab of the civil engineering platform. Horizontal beams are installed between the two first mechanical grate furnace steel columns and between the two second mechanical grate furnace steel columns. Figure 1 , Figure 4 , Figure 5In the diagram, two first mechanical grate steel columns overlap, and the crossbeams are all perpendicular to the drawing (the same applies below). The feeding platform 4 is installed on the aforementioned two crossbeams, and the feed inlet of the feeding platform is connected to the discharge outlet at the bottom of the discharge chute. The leachate collector 5 is installed on the third floor slab of the civil engineering platform. The leachate collection hopper of the leachate collector passes through the opening in the second floor slab of the civil engineering platform and connects to the leachate output end at the bottom of the feeding platform; the collected leachate is transported to the incinerator for complete combustion. Crossbeams are horizontally fixed on the two second mechanical grate steel columns and the two third mechanical grate steel columns, respectively. The front and rear ends of the front incinerator grate 6 are respectively installed on the aforementioned crossbeams, and the corresponding insulation wall of the front incinerator grate is also installed on the aforementioned crossbeams. Horizontal beams are also fixed to the two fourth mechanical grate steel columns. The front and rear ends of the middle section incinerator grate 7 are respectively installed on the crossbeams of the third and fourth mechanical grate steel columns. The corresponding insulation wall of the middle section incinerator grate is also installed on the aforementioned crossbeams. Horizontal beams are also fixed to the two fifth mechanical grate steel columns. The front and rear ends of the rear section incinerator grate 8 are respectively installed on the crossbeams of the fourth and fifth mechanical grate steel columns. The corresponding insulation wall of the rear section incinerator grate is also installed on the aforementioned crossbeams. Two horizontal beams are also fixed to the two sixth mechanical grate steel columns, and two horizontally arranged long steel beams p extending in the front and rear directions connect the sixth, fifth, fourth, third, and second mechanical grate steel columns. The air chambers at the bottom of the front incinerator grate, the middle incinerator grate, and the rear incinerator grate are all arranged in parallel and supported by the long steel beams p. The insulation furnace wall on the ash outlet side of the rear incinerator is also vertically arranged on the long steel beams p, and the upper insulation support beam 13 and the lower insulation support beam 14 connecting the top and middle of the insulation furnace wall are respectively fixed to the fluidized bed steel beams. The rear wall maintenance platform 12 is supported and fixed by the lower insulation support beam 14 and the fluidized bed furnace steel column.
[0043] Depend on Figure 2 , Figure 16 It can be seen that the civil engineering columns, the first fluidized bed furnace steel column, the second fluidized bed furnace steel column, the third fluidized bed furnace steel column, and the first to sixth mechanical grate furnace steel columns are all arranged in pairs and symmetrically about the center line of the incinerator.
[0044] Except for the crossbeams, all the beams mentioned above (including civil engineering beams, long and short steel beams, and support beams) are set in the front-to-back direction and arranged horizontally.
Claims
1. A mechanical grate incinerator support structure combined with a fluidized bed incinerator support structure, comprising a civil engineering platform (1) located at the front of the waste incinerator and supporting a material chute (3), a feeding platform (4), and a leachate collector (5), and a fluidized bed furnace steel structure (11) located at the rear of the waste incinerator and supporting a rear wall maintenance platform (12) and an insulated furnace wall (9), characterized in that: It also includes a mechanical grate steel structure (10) located between the front and rear sides of the waste incinerator and connecting the fluidized bed furnace steel structure to support the front incinerator grate (6), the middle incinerator grate (7) and the rear incinerator grate (8); The mechanical grate steel structure includes at least two third mechanical grate steel columns (c) vertically arranged on the ground and connected to the fluidized bed furnace steel structure by a number of medium steel beams (k) arranged in the front-back direction; at least two second mechanical grate steel columns (b) vertically arranged on the ground and connected to the third mechanical grate steel columns by a number of second short steel beams (n) arranged in the front-back direction; at least two first mechanical grate steel columns (a) vertically arranged on the civil engineering platform and connected to the second mechanical grate steel columns by a number of first short steel beams (m) arranged in the front-back direction; and a number of short steel columns vertically arranged on the ground and connected to the third mechanical grate steel columns and the second mechanical grate steel columns by two long steel beams (p) arranged in the front-back direction; the short steel columns include a fourth mechanical grate steel column (d), a fifth mechanical grate steel column (e), and a sixth mechanical grate steel column (f) vertically fixed to the ground.
2. The mechanical grate incinerator support structure combined with a fluidized bed incinerator support structure according to claim 1, characterized in that: The civil engineering platform includes several civil engineering columns (2) arranged vertically and supported by the ground, several civil engineering beams connecting the several civil engineering columns from top to bottom, several floor slabs fixed horizontally on the several civil engineering beams, and civil engineering walls (2.1) arranged vertically on the ground and connected to the several civil engineering beams; the fluidized bed furnace steel structure includes several fluidized bed furnace steel columns arranged vertically and supported by the ground, and several fluidized bed furnace steel beams arranged in the front-to-back direction and connected to the several fluidized bed furnace steel columns in layers.
3. The mechanical grate incinerator support structure combined with a fluidized bed incinerator support structure according to claim 2, characterized in that: The civil engineering platform supports the material chute (3) and leachate collector (5); the crossbeams between the two first mechanical grate steel columns and the two second mechanical grate steel columns support the feeding platform (4); the crossbeams between the two second mechanical grate steel columns and the two third mechanical grate steel columns support the front section incinerator grate and the corresponding insulation furnace wall; the crossbeams between the two third mechanical grate steel columns and the two fourth mechanical grate steel columns support the middle section incinerator grate and... The corresponding insulated furnace wall; the crossbeams between the two fourth mechanical grate steel columns and the crossbeams between the two fifth mechanical grate steel columns support the rear section incinerator grate and the corresponding insulated furnace wall; the long steel beam simultaneously connects the sixth mechanical grate steel column, the fifth mechanical grate steel column, the fourth mechanical grate steel column, the third mechanical grate steel column, and the second mechanical grate steel column; the air chambers at the bottom of the front section incinerator grate, the middle section incinerator grate, and the rear section incinerator grate are all arranged in parallel and supported by the long steel beam.
4. The mechanical grate incinerator support structure combined with a fluidized bed incinerator support structure according to claim 3, characterized in that: The top of the civil engineering wall and the top of the civil engineering column are fixed with connecting brackets by pre-embedding. The periphery of the upper part of the material chute is installed on the civil engineering platform through the connecting brackets. The discharge port at the bottom of the material chute extends to the space of the next floor through the opening of the first floor slab of the civil engineering platform, thereby connecting with the feed inlet of the feeding platform. The leachate collector (5) is installed on the third floor slab of the civil engineering platform. The leachate collection hopper of the leachate collector passes through the opening of the second floor slab of the civil engineering platform and connects with the leachate output end at the bottom of the feeding platform.
5. The mechanical grate incinerator support structure combined with a fluidized bed incinerator support structure according to claim 4, characterized in that: The insulated furnace wall on the ash discharge port side of the rear incinerator is vertically set and supported by short steel columns. The top and middle parts of the insulated furnace wall are connected to the fluidized bed furnace steel structure by horizontally arranged upper insulated support beam (13) and lower insulated support beam (14).
6. The mechanical grate incinerator support structure combined with a fluidized bed incinerator support structure according to claim 5, characterized in that: The material discharge chute, feeding platform, and leachate collector are sequentially arranged on several floor slabs distributed from top to bottom.
7. The mechanical grate incinerator support structure combined with a fluidized bed incinerator support structure according to claim 6, characterized in that: The fluidized bed furnace steel columns include a first fluidized bed furnace steel column (G1), a second fluidized bed furnace steel column (G2), and a third fluidized bed furnace steel column (G3).