Combined fire grate segment
The modular grate plate design addresses the high maintenance and efficiency issues of traditional incinerator grate plates by enabling easy replacement of worn components, thereby reducing costs and improving operational efficiency.
Patent Information
- Application Number
- CN202422014372.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-20
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-08-20
AI Technical Summary
Traditional garbage incinerator grate plates are made of a monolithic structure, leading to high maintenance costs and reduced efficiency due to the need for complete replacement when they wear out.
A modular grate plate design comprising a first and second grate plate component that can be easily disassembled, allowing for the replacement of only the worn-out first component while the second component continues to operate, reducing maintenance costs and downtime.
The modular design allows for cost-effective replacement of worn-out components, minimizing downtime and enhancing the efficiency of the incineration process.
Smart Images
Figure CN223106047U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a domestic waste incinerator device, in particular to a combined grate bar. Background Art
[0002] With the acceleration of the urbanization process and the continuous expansion of the population scale, garbage disposal has become an increasingly serious problem. At present, the most effective garbage disposal method is incineration. As an efficient and waste-reducing garbage disposal method, garbage incineration has the characteristics of harmlessness, reduction, and resource utilization, and has been widely used.
[0003] At present, mechanical grate type garbage incinerators are widely used in many countries including China. As one of the core components of mechanical grate equipment, the grate bars work in a high-temperature and corrosive environment and rub against the garbage to be incinerated during the working process, and are prone to wear problems. The grate bars of traditional garbage incinerators adopt an integral structure. Once worn, they need to be replaced as a whole, which not only increases the maintenance cost of the incinerator, but also affects the continuous operation of the incinerator and the garbage disposal efficiency. Content of the Utility Model
[0004] The purpose of the utility model is to provide a combined grate bar that is convenient to replace after partial wear and has a lower replacement cost.
[0005] To achieve the above purpose, the utility model provides a combined grate bar, which includes a first grate bar component and a second grate bar component. The first grate bar component and the second grate bar component are detachably connected. The first grate bar component is located at the front end of the combined grate bar along the pushing and pulling direction, and the second grate bar component is located at the rear end of the combined grate bar along the pushing and pulling direction.
[0006] Further, the two ends of the first grate bar component are respectively a first end and a second end, the two ends of the second grate bar component are respectively a third end and a fourth end. The end face of the first end is provided with a first inclined surface and a second inclined surface that extend forward and backward. A third inclined surface is formed between the top of the first grate bar component and the end face of the second end. A plurality of frustum protrusions arranged along the width direction of the first grate bar component are formed between the second inclined surface and the third inclined surface. A plurality of through holes arranged along the width direction of the first grate bar component are provided on the third inclined surface. The second end is connected to the third end.
[0007] Further, a plurality of reinforcing ribs are arranged on the inner wall of the second grate bar component.
[0008] Further, it further includes a connecting bolt. A connecting groove is provided at the end of the third end, and a connecting boss is provided at the end of the second end. The connecting boss is placed in the connecting groove, and the connecting boss and the connecting groove form a hook structure. The connecting bolt passes through the connecting boss and the connecting groove to connect the end of the second end of the first grate bar assembly to the end of the third end of the second grate bar assembly.
[0009] Further, the width of the connecting groove is smaller than the width of the end of the third end. A first mating surface, a second mating surface, and a third mating surface are formed between the connecting boss and the connecting groove. The first mating surface is used to limit the front-back movement of the connecting boss and the connecting groove in the length direction, and the second mating surface and the third mating surface are used to limit the left-right movement of the connecting boss and the connecting groove in the width direction.
[0010] Further, both the second mating surface and the third mating surface are inclined surfaces.
[0011] Further, a connecting hole is provided at the end of the second end of the first grate bar assembly, and the head of the connecting bolt sinks into the connecting hole.
[0012] Further, the coefficient of thermal expansion of the connecting bolt is close to the coefficients of thermal expansion of the first grate bar assembly and the second grate bar assembly.
[0013] The combined grate bar of the present invention has at least the following beneficial effects:
[0014] For the combined grate bar of the present invention, since the first grate bar assembly and the second grate bar assembly are detachably connected, when the first grate bar assembly is severely worn, the first grate bar assembly and the second grate bar assembly can be disassembled, and only the first grate bar assembly needs to be replaced. The second grate bar assembly can continue to be used due to less wear, thereby reducing the replacement cost of the grate bar spare parts, shortening the downtime when replacing the spare parts of the waste incinerator, and improving the waste treatment efficiency.
[0015] The combined grate bar of the present invention will be specifically described below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is the front sectional view of the combined grate bar of the present invention;
[0017] Figure 2 is the front structural schematic diagram of the combined grate bar of the present invention;
[0018] Figure 3 is the connection structural schematic diagram of the first grate bar assembly and the second grate bar assembly in the combined grate bar of the present invention;
[0019] Figure 4 This is a schematic diagram of the installation structure of the combined grate bars of the present utility model. Specific embodiments
[0020] As Figure 1 、 Figure 2 、 Figure 3 As shown in
[0021] Optionally, as Figure 1 、 Figure 3 、 Figure 4 As shown, the two ends of the first grate bar assembly 11 are respectively the first end and the second end, and the two ends of the second grate bar assembly 12 are respectively the third end and the fourth end. The second end is connected to the third end. When the combined grate bars move back and forth, the first end of the first grate bar assembly 11 is used to tear and push the garbage. On the end face of the first end, there are first inclined surfaces 111 and second inclined surfaces 112 that extend forward and backward. Between the top of the first grate bar assembly 11 and the end face of the second end, a third inclined surface 113 is formed. Between the second inclined surface 112 and the third inclined surface 113, a plurality of frustum protrusions 114 are arranged along the width direction. Along the width direction on the third inclined surface 113, a plurality of through holes 115 are sequentially arranged. The through holes 115 are ventilation holes. The primary combustion air in the lower air chamber 14 of the grate enters the furnace hearth of the incinerator through the ventilation holes, which plays a role in assisting the combustion of the garbage and drying the garbage. By setting the first inclined surface 111, the second inclined surface 112, and the plurality of frustum protrusions 114, it is convenient to push the garbage to be incinerated.
[0022] Optionally, a plurality of reinforcing ribs 121 are provided on the inner wall of the second grate bar assembly 12. Specifically, the plurality of reinforcing ribs 121 are sequentially arranged along the length direction of the second grate bar assembly 12.
[0023] Optionally, it further includes a connecting bolt 13. A connecting groove 122 is provided at the end of the third end, and a connecting boss 116 is provided at the end of the second end. The connecting boss 116 is placed in the connecting groove 122. The connecting boss 116 and the connecting groove 122 form a hook structure. The connecting bolt 13 passes through the connecting boss 116 and the connecting groove 122 to connect the end of the second end of the first grate bar assembly 11 with the end of the third end of the second grate bar assembly 12. By providing the connecting boss 116 and the connecting groove 122 and making the connecting boss 116 and the connecting groove 122 form a hook structure, the connection strength between the first grate bar assembly 11 and the second grate bar assembly 12 is improved, and it is convenient for the combined grate bars to be pushed and pulled back and forth.
[0024] Optionally, the width of the connecting groove 122 is smaller than the width of the end of the third end. A first mating surface 15, a second mating surface 16, and a third mating surface 17 are formed between the connecting boss 116 and the connecting groove 122. The first mating surface 15 is used to limit the front-back movement of the connecting boss 116 and the connecting groove 122 along the length direction, and the second mating surface 16 and the third mating surface 17 are used to limit the left-right movement of the connecting boss 116 and the connecting groove 122 along the width direction, further ensuring that the connection between the first grate bar assembly 11 and the second grate bar assembly 12 is firm enough.
[0025] Optionally, both the second mating surface 16 and the third mating surface 17 are inclined surfaces, making the combined grate bars of the present invention more convenient to assemble and ensuring the assembly accuracy.
[0026] Optionally, a connecting hole is provided at the end of the second end of the first grate bar assembly 11, and the head of the connecting bolt 13 sinks into the connecting hole, effectively avoiding the wear of the head of the connecting bolt 13 caused by the scouring of the high-temperature primary air.
[0027] Optionally, the connecting bolt 13 further includes a high-strength disc spring gasket. When the grate bars work in a high-temperature environment, the connecting bolt 13 has sufficient pre-tightening force to ensure the reliability of the bolt connection.
[0028] Optionally, the thermal expansion coefficient of the material used for the connecting bolt 13 is close to the thermal expansion coefficients of the first grate bar assembly 11 and the second grate bar assembly 12, reducing the additional high-temperature load generated when the grate bars are used under high-temperature conditions.
[0029] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will all fall within the protection scope of the present invention.
Claims
1. A combined grate bar, characterized in that: It includes a first grate bar assembly (11) and a second grate bar assembly (12). The first grate bar assembly (11) is detachably connected to the second grate bar assembly (12). The first grate bar assembly (11) is located at the front end of the combined grate bar along the pushing and pulling direction, and the second grate bar assembly (12) is located at the rear end of the combined grate bar along the pushing and pulling direction.
2. The modular grate bar according to claim 1, characterized in that: The two ends of the first grate bar assembly (11) are respectively a first end and a second end. The two ends of the second grate bar assembly (12) are respectively a third end and a fourth end. A first inclined surface (111) and a second inclined surface (112) that extend forward and backward are provided on the end surface of the first end. A third inclined surface (113) is formed between the top of the first grate bar assembly (11) and the end surface of the second end. A plurality of frustum protrusions (114) arranged along the width direction of the first grate bar assembly (11) are formed between the second inclined surface (112) and the third inclined surface (113). A plurality of through holes (115) arranged along the width direction of the first grate bar assembly (11) are provided on the third inclined surface (113). The second end is connected to the third end.
3. The modular grate bar according to claim 2, wherein: A plurality of reinforcing ribs (121) are provided on the inner wall of the second grate bar assembly (12).
4. The modular grate bar according to claim 3, wherein: It further includes a connecting bolt (13). A connecting groove (122) is provided at the end of the third end. A connecting boss (116) is provided at the end of the second end. The connecting boss (116) is placed in the connecting groove (122). The connecting boss (116) and the connecting groove (122) form a hook structure. The connecting bolt (13) passes through the connecting boss (116) and the connecting groove (122) to connect the end of the second end of the first grate bar assembly (11) to the end of the third end of the second grate bar assembly (12).
5. The modular grate bar according to claim 4, characterized in that: The width of the connecting groove (122) is smaller than the width of the end of the third end. A first mating surface (15), a second mating surface (16), and a third mating surface (17) are formed between the connecting boss (116) and the connecting groove (122). The first mating surface (15) is used to limit the front and back movement of the connecting boss (116) and the connecting groove (122) along the length direction. The second mating surface (16) and the third mating surface (17) are used to limit the left and right movement of the connecting boss (116) and the connecting groove (122) along the width direction.
6. The modular grate bar according to claim 5, characterized in that: Both the second mating surface (16) and the third mating surface (17) are inclined surfaces.
7. The modular grate bar according to claim 6, characterized in that: A connecting hole is provided at the end of the second end of the first grate bar assembly (11). The head of the connecting bolt (13) sinks into the connecting hole.
8. The modular grate bar according to claim 7, wherein: The thermal expansion coefficient of the connecting bolt (13) is close to the thermal expansion coefficients of the first grate bar assembly (11) and the second grate bar assembly (12).