CN101180500A - Grate bar and grate for a step-grate stoker - Google Patents
Grate bar and grate for a step-grate stoker Download PDFInfo
- Publication number
- CN101180500A CN101180500A CNA2006800152366A CN200680015236A CN101180500A CN 101180500 A CN101180500 A CN 101180500A CN A2006800152366 A CNA2006800152366 A CN A2006800152366A CN 200680015236 A CN200680015236 A CN 200680015236A CN 101180500 A CN101180500 A CN 101180500A
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- Prior art keywords
- fire bars
- flat part
- open
- fire
- grate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23H—GRATES; CLEANING OR RAKING GRATES
- F23H17/00—Details of grates
- F23H17/12—Fire-bars
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- 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
- F23G5/442—Waste feed arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23H—GRATES; CLEANING OR RAKING GRATES
- F23H1/00—Grates with solid bars
- F23H1/02—Grates with solid bars having provision for air supply or air preheating, e.g. air-supply or blast fittings which form a part of the grate structure or serve as supports
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23H—GRATES; CLEANING OR RAKING GRATES
- F23H15/00—Cleaning arrangements for grates; Moving fuel along grates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23H—GRATES; CLEANING OR RAKING GRATES
- F23H17/00—Details of grates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23H—GRATES; CLEANING OR RAKING GRATES
- F23H17/00—Details of grates
- F23H17/08—Bearers; Frames; Spacers; Supports
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23H—GRATES; CLEANING OR RAKING GRATES
- F23H3/00—Grates with hollow bars
- F23H3/04—Grates with hollow bars externally cooled, e.g. with water, steam or air
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Environmental & Geological Engineering (AREA)
- Gasification And Melting Of Waste (AREA)
- Incineration Of Waste (AREA)
Abstract
The invention concerns a grate bar and a grate for a step-grate stoker that is used in the field of furnaces for refuse conversion units. The invention thus relates, according to a first aspect, to a grate bar for a stoker of an incinerator, comprising a tray whose upper surface makes it possible to receive the incinerated elements and which extends with a rear end and a front end each forming a return serving as a bearing point for the bar. The bar also comprises a longitudinal projection situated under the tray and extending at least partially between the rear and front ends of the bar. The invention is characterized in that at least one angular cutting element or cutter is placed under the tray, on a first side of the longitudinal projection, having the function of facilitating the evacuation of the progressively accumulated refractory materials. Under the tray and on one side of the longitudinal projection, the grate bar comprises one or more cooling side wing, possibly, arranging with a side cavern allowing gas to ventilate. The grate comprises at least one grate bar or a set of three grate bars. In a second condition, the central grate bar of which is able to move relatively to the two side bars.
Description
Technical field
Theme of the present invention is fire bars and the fire grate that is used for step grate stove firing machine.It is mainly used in the stove field of stove refuse conversion unit, for example public rubbish, industry, family expenses or medical waste, water treatment mud, perhaps real powder.
Background technology
The incinerating waste material problem is the problem in our society for a long time always, and our society is also making increasing incinerating waste material problem.In fact, the stove that is designed to incinerating waste material has existed a lot of years, and has carried out the improvement that continues up to now.For example, these improvement comprise known stove, such as grate furnace (grate furnace), roller hearth furnace (roller-hearth furnace) or molten pool furnace (fluidized-bed furnace), wherein, waste materials is flushed into by on the transporter that movably ladder is formed by funnel, and this ladder mixes and the promotion waste materials moves forward in the combustion chamber.Thereby these stoves make the waste materials burning, so that pollution products reduces.
Now, we refer to the recovery of waste materials or utilize.In fact, we no longer only pursue and make its disappearance or significantly reduce its quantity, but recover energy by combustion process.
Reclaiming the unit, stove is that waste materials is dried and the oxidized part of its combustible therein.Effectively stove should be designed to make waste materials preferably to be distributed on the burning bed and correctly be mixed.Thisly be mixed for making waste materials and contact, to make waste materials drying, distillation volatizable material and product is resolved into simple particle by reaching its ignition temperature from the hot-air in the stove.
The quality of burning is main relevant with oxygen content, this oxygen content must be fully, reaching necessary high temperature, and must sufficient controlled turbulent flow thereby realize, with the preferable burning of acquisition when the dust of avoiding flying dust to form discharges, and reach the enough time that waste materials exists on fire grate.
Most of known fire grates comprise fire bars, its major part is inverted " U " shape, just open and flat part and two sidepiece supporting legs, it is assembled to form portable step feed, wherein, some fire bars moves in confined translation with respect to other fire bars, thereby particle is moved forward and empties away.A shortcoming of such fire bars is, particle must be along the path that the supporting leg of fire bars is advanced, particle be flushed into these fire bars below before, be very long.In fact, its length with the fire bars supporting leg is corresponding.Therefore, a consequence is that below the fire bars or between the fire bars, particle is heated the longer time and is easy to and keeps.
We know some fire grate, and its fire bars has the major part that is T-shape, the longitudinal component that just has open and flat part and give prominence to below open and flat part.Because the travel path of the particle that is removed between fire bars is corresponding with the thickness of open and flat part, thereby makes this path shorter, therefore, these fire bars have limited the defective that aforesaid major part is the fire bars of inversion " U " type especially.
Yet between the fire bars and below the fire bars, these fire bars can not fully prevent the continuous accumulation of refractory material.This being piled up in is especially to cause the back and forth movement of fire bars to be prevented.It also can cause the expansion at interval between the fire bars, thereby causes the motion that hinders fire grate, and increases the difficulty of regulating burning.In fact, this can cause stopping to produce, to clear up or to change one or more fire bars, the especially mechanical wear that causes owing to the continuous accumulation of following this refractory material.
Therefore, its problem that causes then is, how to prevent refractory material between the fire bars and the continuous accumulation below the fire bars, with these refractory materials of effective removal, thereby guarantees the relative motion of fire bars, increases the average life span of each fire bars, and is beneficial to and regulates burning.
Summary of the invention
Therefore, the object of the present invention is to provide solution of the above problems.
Therefore, according to first aspect, the present invention relates to be used for the fire bars of the combustion chamber of incinerator.This fire bars comprises open and flat part, and its end face designed to be used the material that reception is incinerated, and it extends to front-end and back-end, and each end all forms returning as the fire bars strong point.This fire bars also comprises the vertical projection that is positioned at open and flat part below, this vertically projection between the rear end of described fire bars and front end, extend at least in part.
In peculiar mode, at least one angled cutting element or cutter are located on first side of the below of open and flat part, vertical projection.
In first distortion, fire bars of the present invention comprises the second angled cutting element at least one second side that is positioned at open and flat part below, vertical projection.
Preferably, described fire bars comprises multiple open and flat part below, first side of vertical projection or the angled cutting element on each side of being distributed in.
More preferably, each angled cutting element is positioned at against described open and flat part bottom surface and perpendicular to the position of this bottom surface, and/or each of these angled cutting elements is positioned at against one of vertical projection (6) or another side and perpendicular to the position of this side.
Thereby, in the relative motion of fire bars with respect to adjacent fire bars, angled cutting element assist in removing be deposited between the fire bars continuously, on the fire bars and the refractory material of fire bars below.
In another distortion, can with any one or a plurality of combining of aforementioned distortion, fire bars of the present invention comprises that at least one is positioned in open and flat part below, the vertical flank on first side of projection.
Preferably, this flank that is positioned in open and flat part below is equipped with at least one sidepiece and hollows out, and the sidepiece of the flank of itself and the first adjacent fire bars hollows out together, is formed for directing air to the path that reaches the fire bars front end.
In another distortion, can with any one or a plurality of combining of aforementioned distortion, fire bars of the present invention comprises that at least one is positioned in open and flat part below, vertical second flank on protruding second side.This second flank is provided with sidepiece and hollows out, and the sidepiece of the flank of itself and the second adjacent fire bars hollows out together, is formed for directing air to the alternate path that reaches the fire bars front end.
Preferably, this fire bars comprises and multiplely is distributed on open and flat part below, is arranged on flank on this vertical protruding first side or each side along this vertical projection.These flanks are respectively arranged with sidepiece and hollow out, its respectively with the flank of adjacent fire bars (9,13) in sidepiece hollow out and together form path.Thereby on first or each side of described vertical projection, these paths form and direct air to the passage that reaches the fire bars front end.
In another distortion, can with any one or a plurality of combining of aforementioned distortion, this passage roughly is shaped on the top on the next door, bottom surface of open and flat part at least in part, thus the air that is directed flows under this open and flat part.
In another distortion, can with any one or a plurality of combining of aforementioned distortion, the substrate of fire bars front end has the angle of attack greater than 0 °.
This angle of attack is preferably between 2 ° and 10 °.More preferably, this angle of attack equals 3 ° substantially.
In another distortion, can with any one or a plurality of combining of aforementioned distortion, on at least one vertically protruding side, the front end of open and flat part is equipped with fin, is used for guiding again from path or by the air of the cavate path of sidepiece entering the passage that at least one is positioned at the head portion of fire bars front end.
Preferably, this passage is from the bottom surface of open and flat part, and extend to the top of the end face of open and flat part perpendicular to this open and flat part this moment, is parallel to this open and flat part this moment.
According to second aspect, the invention still further relates to the fire grate of the combustion chamber that is used for incinerator, this incinerator comprises the fire bars at least one first aspect according to the present invention as described hereinbefore.
In equipment distortion, this fire grate comprises at least one group of three fire bars in according to the present invention as described hereinbefore the first aspect, and wherein, the center fire bars in this group is movably with respect to two side fire bars in this group.
Preferably, at least one group of fire bars assembled by the mode of dowel or pin interconnection technique, the side fire bars that two of this technology-lockings are relative to each other, and make the center fire bars with respect to two side fire bars, free shift between two extreme positions.
Therefore, especially in the relative motion process of a fire bars with respect to adjacent fire bars, the present invention advantageously allows to be deposited in continuously between the fire bars, on the fire bars and the removal of the refractory material of fire bars below.In fact, at first, have open and flat part and below this open and flat part vertically structure being provided with of projection be the assembly of "T"-shaped major part, the short path that removes that causes the particle between each fire bars, secondly, in fire bars moved relative to each other process, the use of angled cutting element caused any particle that may pile up between fire bars to be shredded.
Like this, the obstacle of the back and forth movement of fire bars, the expansion of fire bars interbody spacer and the obstruction of fire grate motion have been avoided.Therefore, help regulating burning.In addition,, stop to produce to clear up or to change the situation of one or more fire bars, therefore reduced the mechanical wear on the fire bars thereby reduce owing to avoided the accumulation of refractory material.
In addition, according to previous explaination, the use of open and flat part below flank allows the formation of the air flow passage of this guiding below the fire bars of this fire grate.Thereby, the formation of these passages, and the favourable circulation of air below fire bars thus, depend on this fire bars and adjacent fire bars and put.Because oxidation air is directed toward the front end of fire bars, therefore this preferable circulation of air has been cooled off described assembly when promoting and activating burning.
The shape of flank, position and number combine and are used for quickening from the below cooling of fire bars.
The shape of fire bars front end, especially have when being used for guiding again the air that comes free sidepiece to hollow out formed path to enter the fin of passage of the head portion that is positioned at the fire bars front end, can make surface in open and flat part, then effectively be blown into oxidation air in the rear end of whole fire grate towards fire bars, so that air is blown to the direction of removing product.
The angle of attack of described fire bars front end stops the lifting of the fire bars that particle gathers and bring thus at this point.
Therefore, all these advantages have reduced the risk that hinders the fire bars relative motion largely, and reason is that these motions are absolutely necessary for effective removal of the particle that must be pushed out into the outside, are used for simultaneously in fire grate distributed combustion effectively and well.
These limited relative motions might be compensated, and control by dowel or pin interconnection technique.
By reading the hereinafter description of system equipment advantageous version, what other features and advantages of the present invention can be more clear and more complete presents, and described description provides by limiting examples and with reference to the accompanying drawing of back.
Description of drawings
Fig. 1 schematically shows the sectional view according to of the present invention one group of three fire bars;
Fig. 2 schematically shows the perspective view according to the part of fire bars of the present invention;
Fig. 3 a schematically shows the side view according to the part of fire bars of the present invention;
Fig. 3 b schematically shows the birds-eye perspective according to the part of fire bars of the present invention;
Fig. 4 schematically shows the side view according to fire bars front end of the present invention;
Fig. 5 a schematically shows the upward view of being assembled the fire grate that forms by a plurality of fire bars according to of the present invention;
Fig. 5 b schematically shows the partial bottom view according to three fire bars assemblies of the present invention.
The specific embodiment
Fig. 1 schematically shows the sectional view according to of the present invention one group of three fire bars.
Three fire bars 1,9,13 shown in this figure.Can observe and be, the major part of every fire bars is "T"-shaped, and as in the situation of fire bars 1, open and flat part 3 is on the top of vertical projection 6.Compare with other advantages, this is "T"-shaped major part, because its moment of inertia, provide how much and the preferred levels of mechanical precision, and to the preferable resistivity of high temperature deformation.
The material that uses is preferably the high-melting-point alloy that thermal wear, heat erosion, oxidation and thermal shock is had high resistivity.The casting manufacture method allows the realization of this high fusion and high-melting-point alloy.Be "T"-shaped major part, can all shift out from its mold, allow to use " nature " casting method, this method has sizable special more easily advantage than other more complicated casting methods.
Below open and flat part 3, first flank 7 is positioned on vertical protruding 6 the first side 6a, and second flank 11 can be positioned on described vertical protruding 6 the another side 6b.Flank 7,11 has sidepiece respectively and hollows out 7a, 11a. Adjacent fire bars 9,13 also has flank 8,12 respectively.With flank 7 opposing side flaps 8 of fire bars 1, have and hollow out the opposite sidepiece of 7a with the sidepiece of the flank 7 of fire bars 1 and hollow out 8a.With flank 11 opposing side flaps 12 of fire bars 1, have the sidepiece opposite and hollow out 12a with the side element 11a of the flank side 11 of fire bars 1.
Thereby path 10 is formed between fire bars 1 and the fire bars 9, and path 14 is formed between fire bars 1 and the fire bars 13.The position that sidepiece hollows out in the flank, just with each flank under the relative drift angle of vertical projection of fire bars, just in time allow the formation of the path under the fire bars open and flat part separately.The purpose of these paths is to direct air to the front end that reaches each fire bars.
Fig. 2 schematically shows the perspective view according to the part of fire bars of the present invention.
On a side 6a of vertical projection 6 or on each side 6a, 6b, can locate a plurality of flanks, promptly the flank on the first side 6a 7,7 ' and 7 ", the flank 11,11 ' and 11 on the 6b of another side ".Flank 7,7 ' and 7 " have sidepiece respectively and hollow out 7a, 7a ', 7a ".Flank 11,11 ' and 11 " have sidepiece respectively and hollow out 11a, 11a ', 11a ", itself since situation of perspective view only partly illustrate.
Vertically the sidepiece on each side of projection 6 hollows out sequence (succession), hollow out sequence in conjunction with the sidepiece in the adjacent fire bars (not being shown among Fig. 2), be formed on this vertically on each side of projection 6, a passage between the fire bars that is adjacent of fire bars 1, be used to direct air to and reach front end 5.
Because fire bars 1 and not shown its whole length, the number of these flanks on each side of vertical projection 6 can not limit the present invention naturally.The number of these flanks is determined by the length of fire bars 1 in essence.In fact, this is the important parameter that quickens fire bars 1 cooling.
In the figure, flank 7,7 ' and 7 " and 11,11 ', 11 " be illustrated with vertically projection 6 is vertical, and tilt to the rear end of fire bars 1 (not shown) a little with respect to open and flat part 3.Yet this position is an example, does not limit the scope of the invention.In fact, these flanks for example also can be positioned in the mode that tilts with respect to vertical rear portion of protruding 6, and perpendicular to open and flat part 3.But promptly by the cooling of the mobile realization of oxidation air between flank to fire bars 1, there is preferable effect the position in Fig. 2 example for realizing target.
In order to promote the cooling of fire bars, the arrow that is shown among Fig. 2 has indicated the circulation of described oxidation air between flank.
In addition, Fig. 2 also shows the angled cutting element 15,15 ', 15 on the side 6a of vertical projection 6 that is positioned at open and flat part 3 belows ", they are also referred to as angled element or cutter.Here statement once more, the present invention can't be limited in the number of these angled elements and position.Suitable position is meant the position that can cause any particle of effective cutting between the angled element of the angled element of a fire bars and adjacent fire bars.
This vertically projection 6 because the relation of perspective view and on the sightless another side 6b, fire bars 1 also can have one or more these angled element.
Ideally, these angled elements or cutter 15,15 ', 15 " be positioned at against the position of the bottom surface 3b of open and flat part 3 and perpendicular to this bottom surface.
Preferably, they can be set to against vertical protruding 6 side 6a or 6b and perpendicular to this side.
Therefore, by shearing these at the cutter on first side at given fire bars and these particles between the cutter on the side of the adjacent fire bars adjacent with first side of given fire bars, so these angled elements that play the cutter effect are being used during the relative motion mutually between the described fire bars, to cut any particle that accumulates between the fire bars.
Fig. 3 a schematically shows the side view according to the part of fire bars of the present invention.
Its outstanding flank 7,7 ' and 7 that shows below open and flat part 3 " inclination of (not shown and reverse) to the back-end with respect to Fig. 2, and perpendicular to vertical projection 6.Also show sidepiece and hollow out 7a, 7a ', 7a ".
Fig. 3 b schematically shows the face upwarding view according to the part of fire bars of the present invention.
It is outstanding to show the distribution of the angled element on each side of vertical protruding 6 in a specific embodiments.In this embodiment, angled element just in time is positioned at the below of open and flat part 3, against and perpendicular to the bottom surface 3b of this open and flat part 3.They are distributed on each side of vertical protruding 6, respectively against and perpendicular to this vertical side of projection 6.
Fig. 4 schematically shows the side view according to the front end of fire bars of the present invention.
The front end 5 of fire bars is formed with returns, and its substrate 5a is as the strong point of fire bars.This substrate 5a has the angle of attack greater than 0 °.Thereby in the motion process of fire bars longitudinal translation each other, this angle of attack prevents to gather particle below fire bars front end 5, prevents that then this fire bars from rising.
Preferably, effective angle of attack is between 2 ° and 10 °.When the angle of attack approximates 3 ° greatly, especially good effect is arranged.
On a side of vertical projection 6 or on each side, the front end 5 of this fire bars also has fin 16, be used for longitudinally projection 6 again guiding come the air (lead again and mark) of the cavate path of sidepiece of free flank (not shown) by the arrow that is directed upwards towards.In fact, the interior bending shape of this fin 16 promotes the guiding again of air.On a side of vertical projection 6 or on each side, air is by the admission passage 18 that leads again.This passage 18 is from the bottom surface 3b of open and flat part 3, and this moment is perpendicular to this open and flat part 3.Then, expose, be parallel to this open and flat part 3 this moment from the top of the end face 3a of open and flat part 3.The air of discharging from this passage 18 is by the arrow mark that points to fire bars rear end (not shown) direction.
This passage 18 can have circular cross-section, possibly, is positioned at input diameter on the bottom surface 3b of open and flat part 3 greater than its output diameter on the top of the end face 3a of open and flat part 3.
Thereby oxidation air is blown into the rear portion in the mode of optimizing, and just removes the direction of product.
Fig. 5 a schematically shows the upward view of being assembled the fire grate that forms by a plurality of fire bars according to of the present invention.
In the figure, fire grate 2 comprises two groups 20,20 ', and each group contains three fire bars 1,9,13 and 1 ', 9 ', 13 ' respectively.In each group of these groups, its center fire bars 1 or 1 ' is movably with respect to the side fire bars 9,13 or 9 ', 13 ' that is maintained fixed.These center fire bars 1,1 ' are with respect to adjacent separately fire bars 9,13 and 9 ', 13 ' the moving by the arrow mark that points to the fire bars y direction on both direction.
In each group, the assembling of fire bars can be used to organize dowel in 20 or pin interconnection technique 21,22,23 and being used to organize 20 ' 21 ', 22 ', 23 ' realize, this technology is highlighted in the region D of irising out, and it makes a more detailed description according to Fig. 5 b.
Therefore, Fig. 5 b schematically shows the upward view of region D of assembly of three fire bars 1,9,13 of the group 20 among Fig. 5 a.
The assembling meeting is influenced by dowel or pin interconnection technique at the front end of fire bars, this technology comprises screw thread axial stem 21 and two stop pins, and one is 22, is positioned on the plane of the first sidepiece fire bars 9 that has right-handed thread, another is 23, is positioned on another sidepiece fire bars 13 that has left hand thread.The round end of each pin 22,23 (head of pin 22 is denoted as 24 in Fig. 5 a) has lock plane part (mark 25 that is used for pin 22 in Fig. 5 a), and each all is installed into the toroidal shell (mark 26 that is used for the head 24 of pin 22 in Fig. 5 a) in the vertical projection that is arranged on each fire bars 9,13, and these toroidal shells also have the lock plane part separately.In fact, the effect of these lock plane is to lock fire bars on the direction of rotating of distaff 21 and on the translation direction of an adjacent fire bars 9 adjacent fire bars 13 with respect to another.
In addition, the rear of the toroidal shell in vertical projection of each fire bars is provided with the longitudinal extension of groove 27 forms, and its width is enough to allow the path of bar 21 to form.
Like this, this package system is organized 20,20 ' center fire bars 1,1 ' by dowel or pin interconnection technique for each and is provided the free degree with respect to the translation of two side fire bars 9,13 and 9 ', 13 ' between two extreme positions respectively.In fact, the stroke of center fire bars 1,1 ' translation can be by the length restriction of groove 27.Like this, above-described for removing the particle must be discharged to the outside effectively and being distributed in the requisite confined translational motion of burning in the fire grate effectively and preferably, may be compensated and be controlled by described package system just.All foregoing descriptions are as example, and do not limit the scope of the invention.
Claims (16)
1. fire bars (1) that is used for the fire grate (2) of the combustion chamber of incinerator, it comprises:
Open and flat part (3), the end face of this open and flat part (3a) are designed to receive the material that will be incinerated, and described open and flat part (3) extends to rear end (4) and front end (5), and each self-forming is returned as the strong point of described fire bars (1),
Be positioned at vertical projection (6) of described open and flat part (3) below, this vertical projection is extended between described rear end and front end (4,5) at least in part,
At least one is positioned in described open and flat part (3) below, against and perpendicular to the angled cutting element of first side (6a) of described vertical projection (6) (15,15 ', 15 "),
It is characterized in that, described angled element has rectangular substantially leg-of-mutton shape of cross section, at first basic vertical with the bottom surface (3b) of described open and flat part (3) first forms the cutting angle, and secondly second of the off plumb angle, bottom surface (3b) of formation and described open and flat part (3) forms discharge angle.
2. fire bars according to claim 1 (1), it is characterized in that, it comprises that at least one is positioned at described open and flat part (3) below, against and perpendicular to the second angled cutting element (15 of second side (6b) of described vertical projection (6), 15 ', 15 "); the described second angled cutting element (15; 15 '; 15 ") has rectangular substantially leg-of-mutton shape of cross section, at first basic vertical with the bottom surface (3b) of described open and flat part (3) first forms the cutting angle, and secondly second of the off plumb angle, bottom surface (3b) of formation and described open and flat part (3) forms discharge angle.
3. fire bars according to claim 1 and 2 (1), it is characterized in that, it comprises and is distributed in described open and flat part (3) below in a large number, against and perpendicular to the first and second side (6a of described vertical projection (6), one or the angled cutting element (15 of other sides 6b), 15 ', 15 "); described angled cutting element (15; 15 '; 15 ") has rectangular substantially leg-of-mutton shape of cross section, at first basic vertical with the bottom surface (3b) of described open and flat part (3) first forms the cutting angle, and secondly second of the off plumb angle, bottom surface (3b) of formation and described open and flat part (3) forms discharge angle.
4. according to each described fire bars (1) in the claim 1 to 3, it is characterized in that it comprises that at least one is positioned in described open and flat part (3) below, be positioned at the flank (7) on first side (6a) of described vertical projection (6).
5. according to each described fire bars (1) in the claim 1 to 4, it is characterized in that, described flank (7) is provided with at least one sidepiece and hollows out (7a), hollows out the path (10) that (8a) together is formed for directing air to the described front end (5) that reaches described fire bars (1) so that this sidepiece hollows out the sidepiece of flank (8) of the first adjacent fire bars (9) of (7a) and described fire bars (1).
6. fire bars according to claim 5 (1), it is characterized in that, it comprises that at least one is positioned in described open and flat part (3) below, be positioned at second flank (11) on second side (6b) of described vertical projection (6), described second flank (11) is provided with sidepiece and hollows out (11a), the sidepiece of flank (12) that this sidepiece hollows out the second adjacent fire bars (13) of (11a) and described fire bars (1) hollows out (12a) together, is formed for directing air to the alternate path (14) of the described front end (5) that reaches described fire bars (1).
7. according to claim 5 or 6 described fire bars (1), it is characterized in that, it comprises in a large number along described vertical projection (6) and is distributed on described open and flat part (3) below, be positioned at first side or each side (6a of described vertical projection (6), flank (7 6b), 7 '; 7 " 11,11 ', 11 "); described flank (7; 7 '; 7 " 11,11 ', 11 ") be respectively equipped with sidepiece hollow out (7a; 7a '; 7a ", 11a, 11a ', 11a "); the sidepiece that these sidepieces hollow out respectively with the flank (8; 12) of the adjacent fire bars (9; 13) of described fire bars (1) hollows out (8a; 12a) together; form path (10,14), these described paths (10,14) at described first side or each side (6a of described vertical projection (6), 6b), be formed for directing air to the passage of the described front end (5) that reaches described fire bars (1).
8. according to each described fire bars (1) in the claim 5 to 7, it is characterized in that, the top of described path (10,14) roughly is shaped by the bottom surface (3b) of described open and flat part (3) at least in part, so that the air that is directed circulates under described open and flat part (3).
9. according to each described fire bars (1) in the claim 1 to 8, it is characterized in that the substrate (5a) of the described front end (5) of described open and flat part (3) has the angle of attack (α) greater than 0 °.
10. fire bars according to claim 9 (1) is characterized in that, the described angle of attack (α) preferably equals 3 ° substantially between 2 ° to 10 °.
11. according to each described fire bars (1) in the claim 1 to 10, it is characterized in that, on at least one side of described vertical projection (6) (6a, 6b), the described front end (5) of described open and flat part (3) is provided with fin (16), is used for guiding again at least one passage (18) that enters the top of the described front end (5) that is positioned at described open and flat part (3) from the air of described path (10,14).
12. fire bars according to claim 11 (1), it is characterized in that, described passage (18) is from the bottom surface (3b) of described open and flat part (3), this moment is perpendicular to this described open and flat part (3), extend to the top of the end face (3a) of described open and flat part (3), be parallel to this described open and flat part (3) this moment.
13. a fire grate (2) that is used for the combustion chamber of incinerator is characterized in that, it comprises that at least one is according to each described fire bars (1) in the claim 1 to 12.
14. fire grate (2) that is used for the combustion chamber of incinerator, it is characterized in that, it comprises at least one group (20,20 ') according to each described three fire bars (1,9,13,1 ', 9 ', 13 ') in the claim 1 to 12, and the center fire bars (1,1 ') in described group (20,20 ') is movably with respect to two the side fire bars (9,13,9 ', 13 ') in described group (20,20 ').
15. fire grate (2) that is used for the combustion chamber of incinerator according to claim 14, it is characterized in that, at center fire bars (1,1 ') each the angled cutting element on the side is symmetrical, and with respect to side fire bars (9,9 ', 13,13 ') the angled cutting element skew on the side, when center fire bars (1,1 ') with respect to side fire bars (9,9 ', 13, when 13 ') moving, at center fire bars (1,1 ') angled cutting element and side fire bars (9 on the side, 9 ', 13,13 ') the angled cutting element on the side is combined together.
16. according to claim 15 or 16 described fire grates (2), it is characterized in that, described fire bars (1,9,13,1 ', 9 ', 13 ') at least one described group (20,20 '), by dowel or pin interconnection technique (21,22,23,21 ', 22 ', 23 ') assembling, described dowel or pin interconnection technique relative to each other lock two side fire bars (9,13,9 ', 13 '), and make center fire bars (1,1 ') with respect to two side fire bars (9,13,9 ', 13 ') free shift between two extreme positions.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0504504A FR2885403A1 (en) | 2005-05-03 | 2005-05-03 | GRID BAR AND GRID FOR FIREPLACE WITH SOLIDARITY GRADES |
| FR0504504 | 2005-05-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101180500A true CN101180500A (en) | 2008-05-14 |
Family
ID=35519958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006800152366A Pending CN101180500A (en) | 2005-05-03 | 2006-05-03 | Grate bar and grate for a step-grate stoker |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US20080163860A1 (en) |
| EP (1) | EP1877703A1 (en) |
| JP (1) | JP2008540988A (en) |
| KR (1) | KR20080020598A (en) |
| CN (1) | CN101180500A (en) |
| AU (1) | AU2006243134A1 (en) |
| BR (1) | BRPI0610897A2 (en) |
| CA (1) | CA2607137A1 (en) |
| FR (1) | FR2885403A1 (en) |
| NO (1) | NO20076182L (en) |
| WO (1) | WO2006117478A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791504A (en) * | 2014-02-24 | 2014-05-14 | 吕英 | Environment-friendly efficient refuse incineration device |
| CN110686263A (en) * | 2019-10-09 | 2020-01-14 | 科能亚太铸造（武汉）有限公司 | Fire bar for burning device |
| CN110779024A (en) * | 2018-07-27 | 2020-02-11 | 欧洲焚烧技术服务一人简易股份公司 | Method for modifying a grate of an incinerator, tray support and incinerator |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE7713314L (en) * | 1976-12-17 | 1978-06-18 | Rohm & Haas | ARTHROPOD REPELLENTS |
| GB2483479A (en) | 2010-09-09 | 2012-03-14 | Tiska Gmbh | Furnace grate bars |
| CN110925766B (en) * | 2019-12-13 | 2024-03-22 | 重庆科技学院 | Multi-edge composite fixed fire grate segment |
| KR102625230B1 (en) * | 2023-01-27 | 2024-01-16 | 에이치엘에코텍 주식회사 | Fire grate block, stocker type fire grate apparatus, stocker type incinerator and system for incinerating waste |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US610674A (en) * | 1898-09-13 | Grate | ||
| US1385876A (en) * | 1921-07-26 | Sylvania | ||
| US361397A (en) * | 1887-04-19 | Grate-bar | ||
| US310097A (en) * | 1884-12-30 | Grate | ||
| US105948A (en) * | 1870-08-02 | William kearney | ||
| US58252A (en) * | 1866-09-25 | Grate-bar | ||
| US325852A (en) * | 1885-09-08 | Grate-bar | ||
| US54349A (en) * | 1866-05-01 | David houstel | ||
| US378195A (en) * | 1888-02-21 | Ieon wobks | ||
| US199707A (en) * | 1878-01-29 | Austeia | ||
| US167230A (en) * | 1875-08-31 | Improvement in furnace grate-bars | ||
| US1409205A (en) * | 1918-07-15 | 1922-03-14 | Combustion Eng Corp | Furnace grate bar |
| US1338070A (en) * | 1919-04-21 | 1920-04-27 | Marion Foundry Corp | Grate-bar |
| US1337214A (en) * | 1919-06-11 | 1920-04-20 | Joseph J Fowden | Fire-grate |
| US1553587A (en) * | 1924-06-10 | 1925-09-15 | Balmfirth Alfred | Grate |
| US1715294A (en) * | 1927-06-13 | 1929-05-28 | Hulson Grate Company | Grate structure |
| US1823235A (en) * | 1928-11-05 | 1931-09-15 | Ernest E Lee Co | Furnace grate bar |
| US1884557A (en) * | 1929-02-08 | 1932-10-25 | Firebar Corp | Fuel grate |
| US1912886A (en) * | 1930-03-01 | 1933-06-06 | Firebar Corp | Furnace grate construction |
| US2257287A (en) * | 1939-06-01 | 1941-09-30 | Comb Eng Co Inc | Grate bar |
| US2372260A (en) * | 1942-06-09 | 1945-03-27 | Waugh Equipment Co | Grate bar |
| US2527872A (en) * | 1945-09-07 | 1950-10-31 | Dorothy B Balmfirth | Grate and grate bar |
| US2806439A (en) * | 1952-11-08 | 1957-09-17 | Detroit Stoker Co | Grate |
| US3014439A (en) * | 1960-07-11 | 1961-12-26 | Earland R Mitchell | Hollow stoker grate |
| DE1783200C2 (en) * | 1968-05-28 | 1980-07-10 | Prvni Brnenska Strojirna, Zavody Klementa Gottwalda, N.P., Bruenn (Tschechoslowakei) | Incineration grate for the incineration of urban and industrial waste |
| DE2808057C2 (en) * | 1978-02-24 | 1980-02-14 | Josef Martin Feuerungsbau Gmbh, 8000 Muenchen | Grate covering for mechanically moved step-shaped furnace grates of large furnaces |
| DE3330637C1 (en) * | 1983-08-24 | 1985-01-17 | Martin GmbH für Umwelt- und Energietechnik, 8000 München | Rust, especially for furnaces |
| DE3521266A1 (en) * | 1985-06-13 | 1986-12-18 | Walter Josef Dipl.-Ing. 8000 München Martin | GRATE ROD FOR A FIRING GRATE OF A LARGE BURNER AND BURNING GRATE FOR THIS LARGE BURNER |
| DE3813441A1 (en) * | 1987-04-25 | 1988-11-03 | Mrklas Louis | Grating bar element for a thrust grating furnace for refuse incineration |
| FR2885404A1 (en) * | 2005-05-03 | 2006-11-10 | Saretco Sa | GRID BAR AND GRID FOR FIREPLACE WITH SOLIDARITY GRADES WITH DIRECT AIR COMBUSTION |
-
2005
- 2005-05-03 FR FR0504504A patent/FR2885403A1/en not_active Withdrawn
-
2006
- 2006-05-03 CA CA002607137A patent/CA2607137A1/en not_active Abandoned
- 2006-05-03 WO PCT/FR2006/000993 patent/WO2006117478A1/en active Application Filing
- 2006-05-03 CN CNA2006800152366A patent/CN101180500A/en active Pending
- 2006-05-03 US US11/912,909 patent/US20080163860A1/en not_active Abandoned
- 2006-05-03 EP EP06764590A patent/EP1877703A1/en not_active Withdrawn
- 2006-05-03 BR BRPI0610897-0A patent/BRPI0610897A2/en not_active Application Discontinuation
- 2006-05-03 JP JP2008509471A patent/JP2008540988A/en active Pending
- 2006-05-03 AU AU2006243134A patent/AU2006243134A1/en not_active Abandoned
- 2006-05-03 KR KR1020077025496A patent/KR20080020598A/en not_active Application Discontinuation
-
2007
- 2007-11-30 NO NO20076182A patent/NO20076182L/en not_active Application Discontinuation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791504A (en) * | 2014-02-24 | 2014-05-14 | 吕英 | Environment-friendly efficient refuse incineration device |
| CN103791504B (en) * | 2014-02-24 | 2016-03-02 | 吕英 | A kind of environment-friendly high-efficiency garbage incinerating system |
| CN110779024A (en) * | 2018-07-27 | 2020-02-11 | 欧洲焚烧技术服务一人简易股份公司 | Method for modifying a grate of an incinerator, tray support and incinerator |
| CN110686263A (en) * | 2019-10-09 | 2020-01-14 | 科能亚太铸造（武汉）有限公司 | Fire bar for burning device |
| CN110686263B (en) * | 2019-10-09 | 2023-12-22 | 科能亚太铸造（武汉）有限公司 | Fire bar for incinerator |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20080020598A (en) | 2008-03-05 |
| US20080163860A1 (en) | 2008-07-10 |
| JP2008540988A (en) | 2008-11-20 |
| CA2607137A1 (en) | 2006-11-09 |
| EP1877703A1 (en) | 2008-01-16 |
| WO2006117478A1 (en) | 2006-11-09 |
| AU2006243134A1 (en) | 2006-11-09 |
| FR2885403A1 (en) | 2006-11-10 |
| BRPI0610897A2 (en) | 2010-08-03 |
| NO20076182L (en) | 2008-01-30 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20080514 |