CN215723246U - Detachable grate fixing end structure of solid waste incinerator - Google Patents
Detachable grate fixing end structure of solid waste incinerator Download PDFInfo
- Publication number
- CN215723246U CN215723246U CN202121965174.3U CN202121965174U CN215723246U CN 215723246 U CN215723246 U CN 215723246U CN 202121965174 U CN202121965174 U CN 202121965174U CN 215723246 U CN215723246 U CN 215723246U
- Authority
- CN
- China
- Prior art keywords
- fixed
- grate
- frame
- solid waste
- block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000002910 solid waste Substances 0.000 title claims abstract description 24
- 238000005192 partition Methods 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims description 16
- 238000005520 cutting process Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 abstract description 3
- 230000002265 prevention Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000002184 metal Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 229910001208 Crucible steel Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010813 municipal solid waste Substances 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Incineration Of Waste (AREA)
Abstract
The utility model relates to the technical field of incinerators. The technical scheme is as follows: a detachable fixed end structure of a grate of a solid waste incinerator comprises a middle fixed framework which is vertically fixed on a furnace body base along the length direction of the grate; the method is characterized in that: the grate fixed end structure is also arranged on a fixed partition frame arranged at the top end of the middle fixed framework, a fixed partition block sleeved outside the fixed partition frame, a plurality of fixed partition block connecting pieces transversely penetrating into mounting holes of the fixed partition frame and the fixed partition block so as to connect the fixed partition frame and the fixed partition block into a whole, and a plurality of pull rod devices transversely penetrating into preformed holes of the fixed partition frame and the fixed partition block and positioning fixed grate segments adjacent to the left side and the right side and the fixed partition block together. The grate fixed end structure can effectively solve the problems of modularization of the solid waste incinerator and prevention of foreign matter clamping of the fixed end, and ensures stable operation of the solid waste incinerator.
Description
Technical Field
The utility model relates to an incinerator for incinerating all solid wastes including domestic garbage, general industrial wastes and the like, in particular to a detachable solid waste incinerator grate fixed end structure.
Background
It is known that in incinerators, due to the difference between the surface temperature of the grate segments and the temperature of the frame, the absorption problems of their thermal expansion must be taken into account in order to guarantee the proper functioning of the plant. For this reason, almost all attention is paid to the thermal expansion absorbing means, and little attention is paid to the structure of the fixed end. After the actual operation of a project for more than twenty years, the problems of combustion short circuit, local overheating of fire grate segments and the like are caused by the fact that foreign matters are clamped into the fixed end of the incinerator after the incinerator is shut down.
On the other hand, since the components of solid waste charged as a fuel of an incinerator are very complicated, the manufacturing and installation requirements of the incinerator are very high. However, although manufacturing units can guarantee manufacturing quality, installation units often cannot guarantee installation quality due to inexperience. As a better solution, the parts with the installation precision requirement are positioned and finished in a factory, the modularized manufacturing is realized, and the whole body is transported to the site for installation; therefore, the installation quality of the fire grate can be guaranteed, the construction site installation period is shortened, and the safe and stable operation of the incinerator is guaranteed.
How to realize the removable modularization of the solid useless burning furnace grate stiff end, solve the problem that the grate stiff end foreign matter blocks into simultaneously is the difficult problem that awaits solution at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the background technology and provide a detachable solid waste incinerator grate fixing end structure, which can effectively solve the problems of modularization of the solid waste incinerator and prevention of foreign matters from being clamped in the fixing end and ensure the stable operation of the solid waste incinerator.
The technical scheme provided by the utility model is as follows:
a detachable fixed end structure of a grate of a solid waste incinerator comprises a middle fixed framework which is vertically fixed on a furnace body base along the length direction of the grate; the method is characterized in that: the fire grate fixed end structure is also arranged on a fixed dividing frame at the top end of a middle fixed framework, a fixed dividing block sleeved outside the fixed dividing frame, a plurality of fixed dividing block connecting pieces transversely inserted in mounting holes of the fixed dividing frame and the fixed dividing block so as to connect the fixed dividing frame and the fixed dividing block into a whole, and a plurality of pull rod devices transversely inserted in reserved holes of the fixed dividing frame and the fixed dividing block and used for positioning adjacent fixed fire grate segments on the left side and the right side and the fixed dividing block together; the middle fixing frame is detachably connected with the left middle fixing frame and the right middle fixing frame through a plurality of connecting screw rods, so that the modular installation requirement of the incinerator is met.
The top end of the middle fixed framework is fixed with a left positioning block and a right positioning block which are used for fixing and dividing the positioning of the frame, and the left positioning block and the right positioning block are simultaneously embedded with the inner sides of two side plates of the fixed dividing frame so as to realize accurate positioning during modular assembly of the fixed end structure of the solid waste incinerator grate.
The head position of every fixed grate segment seted up with pull rod device grafting complex opening, this opening still link up the downside border of fixed grate segment to the realization is to the location of fixed grate segment head and inject fixed grate segment and fix the clearance of cutting apart between the frame, prevents that the foreign matter card from going into.
The fixed dividing block connecting pieces are sequentially arranged along the length direction of the grate, and each fixed dividing block connecting piece comprises a pin inserted in the mounting hole, and gaskets and cotter pins arranged at two ends of the pin.
The pull rod devices are sequentially arranged along the length direction of the fire grate, and each pull rod device comprises a stud penetrating through the reserved hole, a short pipe sleeved at the end part of the stud and used for jacking and fixing the partition block, and a nut matched with the stud in a threaded manner and provided with a gasket.
The annular caulking groove is formed in the annular caulking opening of the tail portion of each fixed grate segment and matched with the positioning ring arranged on the transverse fixed grate supporting beam, so that the tail portion of each fixed grate segment is positioned, and a gap between the tail portion of each fixed grate segment and the fixed partition frame is limited.
The working principle of the utility model is as follows: the middle fixed framework is split into a left middle fixed framework and a right middle fixed framework which can be connected (the left middle fixed framework is fixedly connected with a plurality of fixed grate supporting beams on the left side of the middle fixed framework, the right middle fixed framework is fixedly connected with a plurality of fixed grate supporting beams on the right side of the middle fixed framework, a screw rod is adopted for connection, and a matched through hole on the middle fixed framework is positioned at the position P in the figure 4), so that the left (right) middle fixed framework and a row (a plurality of) of fixed grate supporting beams connected with the left (right) middle fixed framework can be used as a module only by splitting the middle fixed framework, the size of the module is greatly reduced, and the factory production, the row transportation and the field installation are facilitated.
In addition, a fixed dividing frame is arranged at the top end of the middle fixed framework, and fixed dividing blocks with heat-resistant cast steel are assembled on the fixed dividing frame by fixed dividing block connecting pieces; the positioning of the fixed dividing frame is implemented by the left and right positioning blocks welded on the middle fixed framework and is determined during factory assembly, so that the positioning can be realized when the fixed dividing frame is transported to a project site, and the mounting precision is ensured.
In addition, in order to prevent foreign matters from being clamped, the fixed end structure of the fire grate adopts a positioning ring as a limiting component at the tail part of the fire grate segment, and the adopted pull rod device is used for fixing the head position of the fire grate segment, so that the gap between the fixed fire grate segment and the positioning end is limited, and the metal foreign matters during operation are prevented from being clamped.
The utility model has the beneficial effects that:
1) by adopting a detachable fire grate fixing end structure, the split transportation and the modular delivery are effectively realized; the mounting quality of the fire grate is ensured, the construction period of construction site mounting is shortened, and the safe and stable operation of the incinerator is ensured;
2) by adopting the pull rod device and the positioning ring structure, the errors of manufacturing, installation, operation and the like are eliminated, the metal foreign matters in the solid waste can be prevented from being clamped in during operation, and the accident of combustion short circuit is effectively prevented;
3) the utility model is an improvement on the basis of the existing incinerator structure and the integral structure of each group of fire grate segments, has simple and reasonable structure and few added parts, thereby being beneficial to the updating and the reconstruction of the existing incinerator, in particular to the solid waste incinerator.
Drawings
Fig. 1 is a schematic front view of the present invention.
Fig. 2 is a view from direction a in fig. 1.
Fig. 3 is a schematic sectional view B-B of fig. 1.
FIG. 4 is a schematic cross-sectional view of C-C of FIG. 3; showing the connection relationship between the middle fixed framework and the fixed dividing frame (after removing the fixed dividing block, the pull rod device and the fixed dividing block connecting piece).
Fig. 5 is an enlarged schematic view of the R portion in fig. 2.
Fig. 6 is a schematic structural view of the fixed grate corbel of fig. 2.
Fig. 7 is a cross-sectional view of a fixed end of a conventional grate.
The reference numerals in the figures illustrate: 1-fire grate segment; 1 a-fixing the fire grate segment; 1 b-a movable fire grate segment; 2-fixing the division blocks; 3-fixing the dividing block connecting piece; 3 a-pin; 3 b-a cotter pin; 3 c-a gasket; 4-a pull rod device; 4 a-stud; 4 b-short pipe; 4 c-a nut; 4 d-gasket; 5-a positioning ring; 6-fixing a grate supporting beam; 7-movable grate supporting beam; 8-fixing a cutting frame; 9-a left middle fixed framework; 9 a-a left locating block; 10-right middle fixed framework; 10 a-a right locating block; 11-connecting piece of left and right middle fixed frame.
Detailed Description
The following further description is made with reference to the embodiments shown in the drawings.
In a common solid waste incinerator, a whole group of multiple rows of fire grates are arranged on an incinerator body side by side, and two adjacent rows of fire grates are separated by fixed ends (the fixed ends extend to the whole row of fire grates along the length direction of the fire grates); each row of fire grates comprises a plurality of fixed fire grate support beams 6 and a plurality of groups of movable fire grate support beams 7 which are arranged along the length direction of the fire grates, and each fixed fire grate support beam and each movable fire grate support beam are arranged in a staggered mode one by one; the fixed grate support beams and the movable grate support beams are parallel to each other and are respectively and horizontally arranged (the axes of all the fixed grate support beams and the movable grate support beams are vertical to the length direction of the grate); the fixed end is also fixedly connected with the fixed grate supporting beams on the left side and the right side. Each fixed grate supporting beam is provided with a group of fixed grate segments 1a (in the group of fixed grate segments, every two adjacent fixed grate segments are fixed together by a fastener to form a fixed grate group), one side of the fixed grate group is fixed with a fixed dividing block at the upper part of the fixed end, and the other side of the fixed grate group is movably matched with an intermediate fixed framework with an intermediate movable compensation component to compensate the deformation caused by expansion with heat and contraction with cold. Each movable grate supporting beam is also connected with a group of movable grate segments 1b (the grate segments 1 comprise fixed grate segments and movable grate segments), and the movable grate segments are driven by a power mechanism to reciprocate, so that the incinerated garbage gradually moves.
The above structure is similar to the prior art.
In the prior fire grate fixed end structure (see figure 7), the middle fixed framework is an integral body which can not be divided; if the middle fixed framework and a plurality of fixed grate support beams respectively connected with the left side and the right side of the middle fixed framework (the through hole parts connected with the screw rods are arranged at Q parts of two side surfaces of the middle fixed framework) are taken as a module, the size is too large (the length and the width both reach dozens of meters) and the transportation cannot be carried out, so that the modular production, the transportation and the installation cannot be realized, and only the field installation mode can be adopted. The problems that the quality can not be guaranteed, foreign matters are clamped into the fixed end of the incinerator, and accordingly combustion short circuits, local overheating of fire grate pieces and the like are caused are solved.
The improvement of the utility model is that:
1. splitting the middle fixed framework into a left middle fixed framework 9 and a right middle fixed framework 10 which are connected by a screw rod 11; the left middle fixed framework is only required to be fixedly connected with a plurality of fixed grate support beams on the left side of the middle fixed framework to serve as a module; the right middle fixed framework only needs to be fixedly connected with a plurality of fixed grate support beams on the right side of the middle fixed framework and also serves as a module; therefore, the size of the module is greatly reduced, the modular production, transportation and installation are facilitated, and the installation quality is also ensured;
2. a fixed dividing frame 8 is arranged at the top end of the connected middle fixed framework; the specific method comprises the following steps: firstly, fixing (generally welding and fixing) a left positioning block 9a and a right positioning block 10a for positioning a fixed dividing frame at the top end of a middle fixed framework, then placing the fixed dividing frame at the top end of the middle fixed framework, and enabling the left and right positioning blocks to be embedded with the inner sides of two side plates of the fixed dividing frame (the fixed dividing frame and the middle fixed framework can be welded into a whole during field installation, and the fixed dividing frame cannot be welded during factory assembly so as to be beneficial to disassembly and transportation); the accurate positioning during the assembly of the fixed end structure module of the solid waste incinerator grate is realized. Obviously, other methods can be adopted to replace the left positioning block and the right positioning block, such as a pin shaft and a bolt, and the left positioning block and the right positioning block are matched with a proper fixing frame.
3. The fixed dividing block made of heat-resistant cast steel is sleeved outside the fixed dividing frame, and the fixed dividing frame and the fixed dividing block are connected into a whole by a fixed dividing block connecting piece. A plurality of fixed partition block connecting pieces are required to be sequentially arranged along the length direction of the fire grate; each fixed dividing block connecting piece comprises a pin 3a inserted into the fixed dividing frame mounting hole and the fixed dividing block mounting hole, and a gasket 3C and a cotter pin 3b mounted at two ends of the pin.
4. A pull rod device 4 is transversely inserted into a preformed hole of the fixed dividing frame and the fixed dividing block, and the fixed dividing frame and the fixed dividing block are fastened into a whole by the pull rod device; and a small gap (generally 1-2mm) is kept between the gasket fastened by the nut and the adjacent fixed grate segments on the left side and the right side, so that the gap between the adjacent fixed grate segments and the fixed dividing block is limited. A plurality of pull rod devices are sequentially arranged along the length direction of the fire grate; each pull rod device comprises a stud 4a inserted in the prepared hole, a short pipe 4b used for pressing and fixing the segmentation block, a washer 4d and a nut 4c for screwing.
5. An opening which is suitable for the stud is formed in the head of each fixed grate segment, and the opening penetrates through the lower side edge of the fixed grate segment; after the stud is inserted, the short pipe is screwed to press the fixed dividing block, and the gasket screwed by the nut is clamped and embedded at the rear side of the side plate of the fixed grate segment and keeps a small amount of clearance (a thermal deformation space is reserved for the fixed grate segment), so that the head position of the fixed grate segment is limited, and the metal foreign matter is prevented from being clamped (the clearance of 1-2mm is too small, and the metal foreign matter cannot be clamped).
6. The present invention also employs the following structure (prior art):
the tail part of each fixed grate segment is provided with an annular rabbet matched with a fixed grate supporting beam 6 (comprising a fixed grate supporting beam frame 6-2 and round steel 6-1 welded at the top end of the fixed grate supporting beam frame).
The annular caulking groove 5a is arranged at the annular caulking port part of the fixed grate segments close to the fixed end (as can be seen from the figure, the annular caulking groove 5a is respectively arranged at the left end and the right end of the two fixed grate segments close to the fixed end); the corresponding position of the fixed grate supporting beam is fixed (preferably welded and fixed) with a matched positioning ring 5; each positioning ring extends for a plurality of lengths along the circumferential direction of the round steel 6-1, so that the tail of the fixed grate segment is positioned, the gap which possibly occurs is eliminated, and the metal foreign bodies are prevented from being clamped in.
Claims (6)
1. A detachable fixed end structure of a grate of a solid waste incinerator comprises a middle fixed framework which is vertically fixed on a furnace body base along the length direction of the grate; the method is characterized in that: the fire grate fixed end structure is also arranged on a fixed dividing frame (8) at the top end of a middle fixed framework, a fixed dividing block (2) sleeved outside the fixed dividing frame, a plurality of fixed dividing block connecting pieces (3) transversely inserted in mounting holes of the fixed dividing frame and the fixed dividing block so as to connect the fixed dividing frame and the fixed dividing block into a whole, and a plurality of pull rod devices (4) transversely inserted in preformed holes of the fixed dividing frame and the fixed dividing block and used for positioning adjacent fixed fire grate segments on the left side and the right side and the fixed dividing block together; the middle fixing frame is detachably connected with the right middle fixing frame (10) through a plurality of connecting screw rods by a left middle fixing frame (9) so as to meet the requirement of modular installation of the incinerator.
2. The detachable grate fixed end structure of the solid waste incinerator according to claim 1, characterized in that: the top end of the middle fixed framework is fixed with a left positioning block (9a) and a right positioning block (9b) which are used for fixing and dividing the positioning of the frame, and the left positioning block and the right positioning block are simultaneously embedded with the inner sides of the two side plates of the fixed and divided frame so as to realize accurate positioning during modular assembly of the fixed end structure of the solid waste incinerator grate.
3. The detachable grate fixed end structure of the solid waste incinerator according to claim 2, characterized in that: the head position of every fixed grate segment seted up with pull rod device grafting complex opening, this opening still link up the downside border of fixed grate segment to the realization is to the location of fixed grate segment head and inject fixed grate segment and fix the clearance of cutting apart between the frame, prevents that the foreign matter card from going into.
4. The detachable grate fixed end structure of the solid waste incinerator according to claim 3, characterized in that: the fixed dividing block connecting pieces are sequentially arranged along the length direction of the grate, and each fixed dividing block connecting piece comprises a pin (3a) inserted in the mounting hole, and a gasket (3c) and a split pin (3b) which are arranged at two ends of the pin.
5. The detachable grate fixed end structure of the solid waste incinerator according to claim 4, characterized in that: the pull rod devices are sequentially arranged along the length direction of the fire grate, and each pull rod device comprises a stud (4a) inserted into the reserved hole, a short pipe 4b sleeved at the end part of the stud and used for jacking and fixing the partition block, and a nut (4c) matched with the stud in a threaded manner and provided with a gasket (4 d).
6. The detachable grate fixed end structure of the solid waste incinerator according to claim 5, characterized in that: an annular caulking groove is formed in the annular caulking opening of the tail portion of each fixed grate segment and is matched with a positioning ring (5) arranged on a supporting beam of the transverse fixed grate, so that the tail portion of each fixed grate segment is positioned, and a gap between the tail portion of each fixed grate segment and the fixed partition frame is limited.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121965174.3U CN215723246U (en) | 2021-08-20 | 2021-08-20 | Detachable grate fixing end structure of solid waste incinerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121965174.3U CN215723246U (en) | 2021-08-20 | 2021-08-20 | Detachable grate fixing end structure of solid waste incinerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215723246U true CN215723246U (en) | 2022-02-01 |
Family
ID=79999162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121965174.3U Active CN215723246U (en) | 2021-08-20 | 2021-08-20 | Detachable grate fixing end structure of solid waste incinerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215723246U (en) |
-
2021
- 2021-08-20 CN CN202121965174.3U patent/CN215723246U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106196077A (en) | A kind of large-scale domestic waste incineration grate furnace | |
| CN215723246U (en) | Detachable grate fixing end structure of solid waste incinerator | |
| CN101890757B (en) | Assembled adjustable steel bar binding clamping fixture support | |
| CN212204549U (en) | Detachable multi-row solid waste incinerator middle fixing and middle mechanical compensation device | |
| EP2504626B1 (en) | A waste disposal plant with movable frame | |
| CN213538018U (en) | Assembled heat treatment hanging basket | |
| EP2771615B1 (en) | Incineration grate consisting of grate bars and method for fitting grate bars in and removing same from an incineration grate | |
| CN111457390B (en) | Detachable intermediate fixing and intermediate mechanical compensating device for multi-row solid waste incinerator | |
| CN214501247U (en) | A thermal expansion compensation device for the grate of a waste incinerator | |
| CN112664954B (en) | Thermal expansion compensation device of waste incinerator fire grate and installation method thereof | |
| CN212887175U (en) | Special tool for adjusting clearance of sealing sheet of air preheater | |
| EP2504623B1 (en) | Waste disposal plant with movable frame and guide assembly | |
| CN215723136U (en) | Steel structure framework for mounting boiler equipment | |
| CN217714949U (en) | Split-row middle partition beam structure of feeding platform of solid waste incinerator | |
| CN222210285U (en) | Novel waste heat furnace high temperature heating surface tube panel fixing device | |
| JP2017003251A (en) | Fire grate and manufacturing method of fire grate | |
| CN201599799U (en) | Incinerator | |
| CN217382979U (en) | Fire grate connecting rod | |
| CN222799649U (en) | A corrosion-resistant microcrystalline silicon nitride hanging sheet structure | |
| CN213111015U (en) | Conveying device used in high-temperature melting box | |
| CN215723247U (en) | Limit structure of solid waste incinerator grate segment | |
| CN217540750U (en) | Side baffle structure of water-cooling solid waste incineration grate | |
| CN102094968A (en) | Sectorial sealplate and manufacturing method thereof | |
| CN222895129U (en) | Circulating fluidized bed boiler water wall metal module expansion heat exchange anti-wear energy saving device | |
| CN219318462U (en) | Supporting device for effectively solving falling-off problem of slag cooler tube bank |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |