CN112610955A - Combined grate bar structure of incinerator grate - Google Patents
Combined grate bar structure of incinerator grate Download PDFInfo
- Publication number
- CN112610955A CN112610955A CN202011504608.XA CN202011504608A CN112610955A CN 112610955 A CN112610955 A CN 112610955A CN 202011504608 A CN202011504608 A CN 202011504608A CN 112610955 A CN112610955 A CN 112610955A
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- grate
- cover
- grate bar
- bar
- bars
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 230000003068 static effect Effects 0.000 claims description 26
- 230000003014 reinforcing effect Effects 0.000 claims description 17
- 238000012423 maintenance Methods 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 abstract description 9
- 239000002699 waste material Substances 0.000 description 6
- 238000009423 ventilation Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 229910000599 Cr alloy Inorganic materials 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 239000000788 chromium alloy Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/002—Incineration of waste; Incinerator constructions; Details, accessories or control therefor characterised by their grates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23H—GRATES; CLEANING OR RAKING GRATES
- F23H11/00—Travelling-grates
- F23H11/06—Travelling-grates with the bars movable relatively to one another
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Incineration Of Waste (AREA)
Abstract
The invention relates to a structure of a combined grate bar of an incinerator grate, which is used for an incinerator grate device and comprises: a grate cover I: having an upper surface a, a front face b, two side faces c and a bottom d; a grate base II: it has an upper surface A, two side surfaces B, a lower surface C, a bottom D and a tail E; the grate cover I and the grate base II can be combined into a whole to form a grate bar, the peripheral edge of the upper surface a can be connected with the edge of the notch of the upper surface A after being assembled, the two side surfaces c are positioned on the inner sides of the two side surfaces B after being assembled, and the front surface B forms the front surface of the grate bar; the upper surface a of the grate cover I is in a step shape, a fall is formed by the grate cover I, and air holes are formed in the vertical surface of the step. The grate bars can improve the combustion stability of the grate, are convenient to replace, and greatly reduce the replacement cost and time.
Description
Technical Field
The invention relates to a combined grate bar structure of a grate of an incinerator.
Background
At present, as incineration equipment for harmlessly treating harmful substances generated by incineration treatment of wastes, the most mainstream is a mechanical grate type incinerator, the surface of the mechanical grate type incinerator is provided with a plurality of fixed grates and movable grates which are in direct contact with combustion objects, and the fixed grates and the movable grates are arranged in a staggered step manner along the length direction in the incinerator. The fixed grate and the movable grate form reciprocating motion, materials are sequentially conveyed in the furnace, and the materials are incinerated.
In recent years, many waste treatment facilities have been equipped with a boiler facility and a turbine power generation facility, and have a heat recovery function in addition to incineration of waste to generate power. Since it is necessary to ensure stable power generation for a long time in a power plant, it is critical to stably operate the grate for a long time, and it is also required to minimize replacement cost and maintenance cost of consumables from the viewpoint of economy.
When the grate bar is used in the furnace, the waste covers the surface of the grate bar for combustion, the temperature born by the surface of the grate bar can reach about 450 ℃, the common grate bar is divided into a movable grate bar and a static grate bar, the movable grate bar and the static grate bar are mutually staggered and have certain friction, and when the grate bar is damaged due to high temperature, corrosion and friction and cannot be continuously used, the incinerator must be periodically maintained and replaced to stop the operation of the incinerator, so that the time for replacement and maintenance is reduced as much as possible or the maintenance and replacement period is increased.
The composition of the waste in the furnace is complex, and in order to burn more effectively, the grate needs to have good functions of stirring, turning over the garbage and promoting the burning.
As for the incineration condition with the fire grate, the combined fire grate bar is invented, the fire grate bar is more convenient to disassemble and replace by a mechanical combination mode of the fire grate base (II) and the fire grate cover (I), and only the fire grate cover (I) which is directly contacted with combustion waste is replaced during replacement, so that the replacement cost is reduced. The combined fire grate has certain gaps at the joints after being assembled, if the gaps are too large, high melting points or hard objects exist in the operation process and are easy to cause jamming, ash leakage amount is increased, and the stability of the whole operation of the fire grate can be enhanced by a stable mechanical structure.
The tail of a common grate bar is fixed on a grate bar supporting beam and is connected with a round steel-shaped supporting beam in an arc-shaped tail form, the possibility of mutual rotation exists between the grate bar and the supporting beam, the grate bar is difficult to arrange and install in a fastening mode, and if the front part of the grate bar is blocked or jacked up by a hard object, the grate bar will be upwarped or lifted or even fall off by taking the cylindrical supporting beam as the center, so that the running of the grate is influenced.
Effective ventilation paths need to be considered in the design of the grate bars, primary combustion air can effectively enter the incinerator through the grate bars, and sufficient combustion of comburents is facilitated.
Disclosure of Invention
In view of the above problems, the present invention provides a combined fire grate structure, which can improve the combustion stability of the fire grate, and is easy to replace, thereby greatly reducing the replacement cost and time.
In view of the above-mentioned problems, the present invention provides a combined grate bar structure, which is cast from high-chromium alloy cast steel with heat resistance, wear resistance, friction resistance and corrosion resistance.
The invention provides a combined fire grate structure of an incinerator fire grate, which is used for an incinerator fire grate device and comprises:
a grate cover I: having an upper surface a, a front face b, two side faces c and a bottom d;
a grate base II: it has an upper surface A, two side surfaces B, a lower surface C, a bottom D and a tail E;
the grate cover I and the grate base II can be combined into a whole to form a grate bar, the peripheral edge of the upper surface a can be connected with the edge of the notch of the upper surface A after being assembled, the two side surfaces c are positioned on the inner sides of the two side surfaces B after being assembled, and the front surface B forms the front surface of the grate bar;
the upper surface a of the grate cover I is in a step shape, a fall is formed by the grate cover I, and air holes are formed in the vertical surface of the step.
Furthermore, a reinforcing rib plate 3 is arranged at the bottom D of the grate cover I, a reinforcing rib plate 7 is also arranged at the bottom D of the grate base II, and the reinforcing rib plates at the two positions are mutually attached after being combined, so that a complete air path is formed at the lower part of the combined grate bars.
Furthermore, the upper surface a and two side surfaces b of the grate cover I form eaves, and the eaves are attached to the step 6 at the edge of the notch of the upper surface A of the grate seat II.
Furthermore, the grate cover I is a main abrasion part of the grate bar, the grate cover can be detached, maintenance and replacement are mainly performed on the grate cover, and the grate cover is connected in a fixing mode of a mechanical clamping groove or connected with the grate base II in a fixing mode of welding, bolts and the like.
Furthermore, the tail part of the grate seat II is provided with a grapple 9 with a rectangular section, and the grapple can be assembled on a grate bar supporting beam 10 corresponding to the shape of the grate bar supporting beam.
Furthermore, the two side faces B of the grate seat II are provided with fixing holes, and the grate bars adjacent to each other at the left and right can be connected in a bolt connection mode.
Furthermore, the grate bars adjacent to the left and the right of the static grate bar L and the static grate bar R are fixedly connected through bolts through fixing holes on the two side surfaces B and are simultaneously fixed on the same grate bar supporting beam through the grapple 9, so that the simultaneous movement or the static movement is realized.
Furthermore, the static grate bars L and the movable grate bars U are assembled up and down and are respectively assembled on different grate bar supporting beams to realize one-movement and one-static,
further, move the grate bar U the lower surface C with the upper surface A of quiet grate bar L laminates each other, and the during operation rubs each other, can need not polish after the casting two planes remain the oxide film on its surface, increase the wearability of during operation.
Furthermore, after the grate bars are integrally assembled, binding surfaces are arranged on the periphery of the grate bars, so that gaps are reduced as much as possible, and the integral ash leakage amount of the grate bar is reduced.
Furthermore, the movable grate bars and the static grate bars have the same shape and size, and are different in assembly position and structure.
The fire grate bars are combined and divided into a fire grate cover (I) and a fire grate base (II) which are mutually fixed and constrained through a mechanical structure.
The grate cover I is divided into an upper surface a, a front surface b, two side surfaces c and a bottom d, the upper surface of the grate cover is in a step shape 1, a small drop is formed by the grate cover, meanwhile, a supporting surface for a combustion object is increased, a vent hole 2 is formed in the vertical position of the step shape, a reinforcing rib plate 3 is arranged at the bottom of the grate cover and can be attached to a reinforcing rib plate 7 on a grate seat, a clamping block 4 is arranged on the bottom surface of the grate cover and can correspond to a clamping groove 8 on the grate seat to play a role in installation and fixation, and eaves 5 are formed on the two.
The grate seat II is divided into an upper surface A, two side surfaces B, a lower surface C, a bottom D and a tail E, the upper surface A is connected with the upper surface a of the grate cover, the inner surfaces of the two side surfaces B can be attached to the outer surfaces of the two side surfaces C of the grate cover, and the connecting part is provided with a step 6 which can be attached to the brim 5 of the grate cover; a reinforcing rib plate 7 arranged at the bottom D of the grate seat II can be mutually attached to a reinforcing rib plate 3 of the grate cover I; the inner side is provided with a clamping groove 8 which can be connected with a clamping block 4 of the grate cover; the tail part E of the grate seat is provided with a grapple 9 with a rectangular section, which can be arranged on a grate bar supporting beam 10 and can be fixed by bolts.
The grate bar is formed by combining a grate cover I and a grate seat II through a connection fixing mode of a clamping block and a clamping groove, the grate bar is divided into a movable grate bar and a static grate bar after being assembled, the static grate bar L and the static grate bar R can be tightly connected through a fastening piece, the static grate bar L and the movable grate bar U are vertically installed, the upper surface A of the grate seat of the static grate bar L and the lower surface B of the grate seat of the movable grate bar U are mutually attached, and a certain included angle alpha exists between the surface of the grate bar and the horizontal plane after the grate bar is integrally assembled.
Drawings
FIG. 1 is a schematic view of a grate bar according to the present invention.
The upper surface of the A fire grate seat, two side surfaces of the B fire grate seat, the lower surface of the C fire grate seat and the tail part of the E fire grate seat.
a the upper surface of the grate cover and b the front surface of the grate cover.
FIG. 2 is a schematic view of a grate assembly of the present invention.
The grate comprises a grate cover I, a grate base II and a grate base D.
FIG. 3 is a schematic view of a furnace hood I of the present invention.
1 step shape, 2 vent holes, 3 reinforcing rib plates, 4 clamping blocks and 5 eaves edges.
c two side surfaces of the grate cover and d the bottom surface of the grate cover.
FIG. 4 is a schematic view of a grate base II according to the present invention.
6 steps, 7 reinforcing rib plates, 8 clamping grooves and 9 grapples.
Fig. 5 is a schematic view of the grate bars of the present invention.
L static fire grate bars, R static fire grate bars, U movable fire grate bars, 10 fire grate bar supporting beams, 11 connecting holes and 12 warping points (easy-to-jam points).
Fig. 6 is a schematic view showing the moving direction of grate bars in the present invention.
Detailed description of the preferred embodiments
Fig. 1 is a schematic view of a grate bar of the present invention. The upper surface of the A fire grate seat, two side surfaces of the B fire grate seat, the lower surface of the C fire grate seat and the tail part of the E fire grate seat. a the upper surface of the grate cover and b the front surface of the grate cover.
The upper surface a and the front part b of the grate cover I are just matched with the missing surface and the front part of the grate seat II, the grate cover I is assembled into the grate seat II through an embedded combination, and a complete grate bar structure is formed after the combination.
Fig. 2 is a schematic view of the grate bar assembly of the present invention. The grate comprises a grate cover I, a grate base II and a grate base D.
Fig. 3 is a schematic view of a furnace hood i of the present invention. 1 step shape, 2 vent holes, 3 reinforcing rib plates, 4 clamping blocks and 5 eaves edges. c two side surfaces of the grate cover and d the bottom surface of the grate cover.
The combined grate bar structure of the grate cover I and the grate seat II is characterized in that vertical long column-shaped clamping blocks 4 are arranged on the bottom surface d of the grate cover, clamping grooves 8 inserted into the grate seat are matched, the grate can be effectively prevented from falling off due to tilting of the grate cover I when the grate runs, the grate cover I is a main abrasion part of the whole grate bar, the grate bar is maintained and replaced by a main grate cover I, only a tool is needed to hook a ventilation hole 2 structure on the grate cover I when the grate cover is detached, the grate cover is installed only by vertically inserting the positions corresponding to the clamping grooves 8 and the steps 6, the grate bar is convenient to replace, the structure is stable when the grate cover is used, and the maintenance cost is reduced without replacing the whole grate bar.
Fig. 4 is a schematic view of a grate base ii according to the present invention. 6 steps, 7 reinforcing rib plates, 8 clamping grooves and 9 grapples.
Grate lid I and II combination formula grate bar structures of grate seat, design eaves limit 5 and the step 6 laminating of the junction of grate seat II around I upper surface an of grate lid, certain clearance must exist in grate lid and the assembly back peripheral junction of grate seat, and this clearance can effectually be filled in the design of eaves limit 5 and step 6, reduces the ash leakage volume of grate to can restrict rocking of grate lid to a certain extent, improve integrated configuration's stability
The grate bar structure with the combination of the grate cover I and the grate base II has the advantages that the reinforcing rib plates 3 at the bottom of the grate cover I and the reinforcing rib plates 7 at the bottom of the grate base II just correspond to each other, complete independent air paths are formed between every two reinforcing rib plates after combination, the positions of the vent holes 2 on the grate cover I correspond to every air path, combustion air can be effectively blown out of the vent holes 2
The grate cover I structure, grate cover I upper surface an is the echelonment 1 and arranges, and self forms the drop, because the grate is reciprocating motion, the echelonment sets up the effective support surface that increases the burning thing, is favorable to the turning over and the roll of burning thing on the grate surface to at the ventilation hole 2 that the echelonment perpendicular set up, when getting into combustion-supporting air, can also further promote the turning over and the roll of burning thing.
Fig. 5 is a schematic view of the grate bars of the present invention. L static fire grate bars, R static fire grate bars, U movable fire grate bars, 10 fire grate bar supporting beams, 11 connecting holes and 12 warping points (easy-to-jam points).
The grate structure is characterized in that a grate cover I and a grate base II are combined, two side faces B of the grate base II are provided with fixing holes, adjacent static grate bars such as L static grate bars and R static grate bars can be connected through bolts, and a grab hook 9 with a rectangular cross section is arranged at the tail E of the grate base and can be fixed on a grate bar supporting beam through bolts. The lower bottom surface C of the static grate bar L is attached to the upper surface of the movable grate bar U after the static grate bar L and the movable grate bar U are installed, two planes rub against each other during working, the attaching position is an easy-raising point (an easy-blocking point) 12, and the grapple 9 adopting the structure can prevent the grate bar from raising, so that the running of the grate bar is more stable and reliable.
Claims (9)
1. The utility model provides an burn burning furnace grate combination formula grate bar structure for burn burning furnace grate device, its characterized in that, this structure includes:
a grate cover I: having an upper surface a, a front face b, two side faces c and a bottom d;
a grate base II: it has an upper surface A, two side surfaces B, a lower surface C, a bottom D and a tail E;
the grate cover I and the grate base II can be combined into a whole to form a grate bar, the peripheral edge of the upper surface a can be connected with the edge of the notch of the upper surface A after being assembled, the two side surfaces c are positioned on the inner sides of the two side surfaces B after being assembled, and the front surface B forms the front surface of the grate bar;
the upper surface a of the grate cover I is in a step shape, a fall is formed by the grate cover I, and air holes are formed in the vertical surface of the step;
the bottom D of the grate cover I is provided with a reinforcing rib plate (3), the bottom D of the grate base II is also provided with a reinforcing rib plate (7), and the reinforcing rib plates at the two positions are combined and then attached to each other, so that the lower part of the combined grate bars forms a complete wind path;
the upper surface a and two side surfaces b of the grate cover I form eaves, and the eaves are attached to steps (6) on the edge of a gap of the upper surface A of the grate base II.
2. The grate bar structure of incinerator grates as claimed in claim 1,
the grate cover I is a wear part of the grate bars, the grate cover can be detached and is mainly replaced during maintenance and replacement, and the grate cover is connected in a fixed mode through a mechanical clamping groove or connected with the grate base II in a fixed mode such as welding and bolts.
3. The grate bar structure of incinerator grates as claimed in claim 1,
the tail part of the grate seat II is provided with a grapple (9) with a rectangular section, and the grapple can be assembled on a grate bar supporting beam (10) corresponding to the shape of the grate bar supporting beam.
4. The grate bar structure of incinerator grates as claimed in claim 1,
and two side surfaces B of the grate seat II are provided with fixing holes, and the grate bars adjacent to each other at the left and right can be connected in a bolt connection mode.
5. The grate bar structure of incinerator grates as claimed in claim 1,
the grate bars adjacent to the left and the right of the static grate bar L and the static grate bar R are fixedly connected through bolts through fixing holes on two side surfaces B and are simultaneously fixed on the same grate bar supporting beam through a grapple (9) to realize simultaneous movement or stillness.
6. The grate bar structure of incinerator grates as claimed in claim 1,
the static grate bars L and the movable grate bars U are assembled up and down and are respectively assembled on different grate bar supporting beams to realize one-movement and one-static.
7. The grate bar structure of incinerator grates as claimed in claim 1,
move the grate bar U the lower surface C with the upper surface A of quiet grate bar L laminates each other, and the during operation rubs each other, can need not polish after the casting two planes remain the oxide film on its surface, increase the wearability of during operation.
8. The grate bar structure of incinerator grates as claimed in claim 1,
after the grate bars are integrally assembled, binding surfaces are arranged on the periphery of the grate bars, so that gaps are reduced as much as possible, and the ash leakage of the whole grate is reduced.
9. The grate bar structure of incinerator grates as claimed in claim 1,
no matter the movable grate bar and the static grate bar are the same in shape and size, the difference is that the assembly positions are different, and the structures of the movable grate bar and the static grate bar are not different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011504608.XA CN112610955A (en) | 2020-12-18 | 2020-12-18 | Combined grate bar structure of incinerator grate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011504608.XA CN112610955A (en) | 2020-12-18 | 2020-12-18 | Combined grate bar structure of incinerator grate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112610955A true CN112610955A (en) | 2021-04-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011504608.XA Pending CN112610955A (en) | 2020-12-18 | 2020-12-18 | Combined grate bar structure of incinerator grate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112610955A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0825383A2 (en) * | 1996-08-10 | 1998-02-25 | EVT Energie- und Verfahrenstechnik GmbH | Grate plate |
| MX2011010597A (en) * | 2009-04-08 | 2012-03-06 | Baumgarte Boiler Systems Gmbh | Grate bar for an incinerator and method for producing such a grate bar. |
| EP2511609A2 (en) * | 2011-04-15 | 2012-10-17 | WVT Breiding GmbH | Modular grate bar, overlay element, focal track element and foot element for same and moving grate of a combustion assembly |
| CN104949133A (en) * | 2015-07-15 | 2015-09-30 | 上海康恒环境股份有限公司 | Staggered forward-push household garbage incineration fire grate structure |
| CN106196108A (en) * | 2015-05-05 | 2016-12-07 | 荏原环境工程株式会社 | Fire grate structure body |
| CN206846741U (en) * | 2017-05-25 | 2018-01-05 | 江阴国润机械有限公司 | A kind of fire grate segment |
| CN207179689U (en) * | 2017-08-16 | 2018-04-03 | 上海龙阳环保工程有限公司 | Fire grate segment |
| CN208124309U (en) * | 2018-03-28 | 2018-11-20 | 河南百汇环保科技股份有限公司 | A kind of fire grate block structure of waste incinerator |
| CN209857075U (en) * | 2019-01-22 | 2019-12-27 | 光大环保技术研究院（南京）有限公司 | Air-cooled turning grate segment of garbage incinerator |
-
2020
- 2020-12-18 CN CN202011504608.XA patent/CN112610955A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0825383A2 (en) * | 1996-08-10 | 1998-02-25 | EVT Energie- und Verfahrenstechnik GmbH | Grate plate |
| MX2011010597A (en) * | 2009-04-08 | 2012-03-06 | Baumgarte Boiler Systems Gmbh | Grate bar for an incinerator and method for producing such a grate bar. |
| EP2511609A2 (en) * | 2011-04-15 | 2012-10-17 | WVT Breiding GmbH | Modular grate bar, overlay element, focal track element and foot element for same and moving grate of a combustion assembly |
| CN106196108A (en) * | 2015-05-05 | 2016-12-07 | 荏原环境工程株式会社 | Fire grate structure body |
| CN104949133A (en) * | 2015-07-15 | 2015-09-30 | 上海康恒环境股份有限公司 | Staggered forward-push household garbage incineration fire grate structure |
| CN206846741U (en) * | 2017-05-25 | 2018-01-05 | 江阴国润机械有限公司 | A kind of fire grate segment |
| CN207179689U (en) * | 2017-08-16 | 2018-04-03 | 上海龙阳环保工程有限公司 | Fire grate segment |
| CN208124309U (en) * | 2018-03-28 | 2018-11-20 | 河南百汇环保科技股份有限公司 | A kind of fire grate block structure of waste incinerator |
| CN209857075U (en) * | 2019-01-22 | 2019-12-27 | 光大环保技术研究院（南京）有限公司 | Air-cooled turning grate segment of garbage incinerator |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20210406 |