CN101660760A - Dry-type slag-conveying device - Google Patents
Dry-type slag-conveying device Download PDFInfo
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- CN101660760A CN101660760A CN200910143203A CN200910143203A CN101660760A CN 101660760 A CN101660760 A CN 101660760A CN 200910143203 A CN200910143203 A CN 200910143203A CN 200910143203 A CN200910143203 A CN 200910143203A CN 101660760 A CN101660760 A CN 101660760A
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Abstract
The invention relates to a dry-type slag-conveying device comprising a slag-bearing box body, a slag-conveying device and a fine ash removing device, wherein the slag-bearing box body consists of a slag collecting section and a slag lifting section which is connected with the slag collecting section and is positioned above the slag collection section; one connected end of the slag lifting sectionand the slag collecting section is provided with a coarse slag outlet; at least any of the two ends of the slag lifting section is provided with a fine ash outlet; and the fine ash removing device moves towards the direction of at least one fine ash outlet. The dry-type slag-conveying device effectively avoids the problem of the residual fine ash in the lifting section in the process of discharging the fine ash carried by the slag removing device through the slag lifting section, simultaneously also reduces the whole conveying load of the equipment and saves energy.
Description
Technical field
The present invention relates to a kind of boiler slag removal equipment, particularly a kind of dry-type slag-conveying device.
Background technology
Lime-ash to coal-burning boiler carries out the dried slag removing processing, boiler ash (comprising bulk lime-ash and thin ash) need be discharged from boiler bottom, and the lime-ash of discharge is promoted to a high position, places in the sludge-store cabin.At present, dry-type slag-conveying device mainly comprises slag carrying casing and is located at the interior steel band slag conveyer of described slag carrying casing.Wherein, described slag carrying casing is divided into slag lifting section and slag collection section; When above-mentioned residue extraction mechanism moved, the lime-ash of discharging from boiler bottom fell on the steel band slag conveyer that is located in the slag collection section, promoted section by slag more afterwards and was admitted in the sludge-store cabin.
Because slag carrying memory box is in circulation of air, therefore with slag when the boiler slag removal mouth is discharged, the thin ash of slag can be blown off to the loading end of described slag carrying bottom half from the gap location of steel band and slag bearing box body side surface, along with slag constantly is discharged from boiler, in the process that the above-mentioned slag that is discharged from is transported, thin ash in the slag carrying casing can increase gradually, if these thin ashes in time can not be discharged, thereby between the thin ash meeting through piling up and the steel band of steel band slag conveyer frictional resistance takes place and influence the transmission of steel band slag conveyer, and then greatly reduce the defeated slag efficient of steel band slag conveyer.In order to solve this technical problem, Chinese patent CN2936701Y discloses a kind of slag-draining device, described slag-draining device is provided with the scraper plate that can move along with the transport tape motion of steel band slag conveyer, described scraper plate can will drop on the cinder that carries bottom half at transport tape and bring sludge-store cabin between moving period, thereby will have solved the accumulation problems of above-mentioned thin ash.
Also there is following technical problem in above-mentioned patented technology on the basis that addresses the above problem:
The first, to fall the thin ash on the slag carrying bottom half loading end from the boiler slag removal mouth, thin grey scavenge unit need be delivered in the high-order sludge-store cabin after slag collection section and slag lifting section; Thin grey scavenge unit along with the steel band slag conveyer in the process that sludge-store cabin moves, also needing to carry a large amount of thin ashes moves simultaneously until arriving sludge-store cabin, to above-mentioned a large amount of thin ashes be promoted to a high position by scraper plate like this, expended lot of energy on the one hand, the integral body that has also increased dry-type slag-conveying device is on the other hand transported load.
Second, a large amount of thin ashes at thin grey scavenge unit band promotes in the high-order process, in slag promotes section, for fear of thin grey scavenge unit when the thin ash that is positioned at bearing box body bottom is removed, the wearing and tearing that scraper plate causes the carrying bottom half, general setting are to keep certain distance between thin grey scavenge unit and carrying bottom half; But the thin ash that this set must cause being positioned in the section of lifting between thin grey scavenge unit and carrying bottom half can't be eliminated.
The 3rd, for the thin ash of slag, the angle between its loading end and the horizontal plane is during less than certain angle, thus the thin ash of described slag can't overcome and the thin grey loading end of described slag between maximum static friction power slide, this angle is called angle of repose; Generally, the angle of repose of dry coal slag is 33 degree.In actual engineer operation, in general the distance of the big capacity sludge-store cabin of slag-discharging boiler distance is all distant, thereby, when slag promotes section loading end and horizontal sextant angle usually less than described angle of repose, the thin ash of slag can rest on the slag carrying bottom half that slag promotes section like this, has caused thin ash to promote the residual of section at slag.Simultaneously, this set has caused slag to promote segment length to be increased, and the thin grey scavenge unit of equal length correspondingly just need be set according to engineering design of the prior art, has so just increased the engineering input, and cost is higher.
Summary of the invention
For this reason, primary technical problem to be solved by this invention is to promote high-order to the process of sludge-store cabin at the thin ash that will accumulate in the carrying bottom half in the prior art, cause slag to promote the residual problem of the thin ash of section, and then provide a kind of thin ash in time can the discharge to avoid slag to promote the residual dry-type slag-conveying device of the thin ash of section.
Be expelled to the purpose of sludge-store cabin in the dry-type slag-conveying device that second technical problem to be solved by this invention is prior art for the thin ash of realizing accumulating in the carrying bottom half, need utilize thin grey scavenge unit to transport thin ash in slag collection section and slag lifting section whole process, cause the integral body of equipment to transport the load increase, the problem that cost increases, so provide a kind of have lessly transport load, need not whole process thin grey scavenge unit, lower-cost dry-type slag-conveying device are set.
For solving the problems of the technologies described above, the invention provides a kind of dry-type slag-conveying device, comprise slag carrying casing, be located at the slag conveying device in the described slag carrying casing, and be located at the thin grey scavenge unit between described slag conveying device and the described slag carrying bottom half; Described slag carrying casing promotes section by slag collection section and slag and forms, described slag promotes the top that section links to each other with described slag collection section and is positioned at described slag collection section, promotes the section other end corresponding with the continuous end of described slag collection section at described slag and is provided with slag notch; Any at least end in the two ends of described slag collection section is provided with thin ash outlet, and described thin grey scavenge unit drives thin ash motion to described at least one thin grey Way out.
Above-mentioned dry-type slag-conveying device also comprises Distribution Warehouse, and described Distribution Warehouse is connected with described thin ash outlet.
Above-mentioned dry-type slag-conveying device, comprise that also one one end is provided with the lime-ash outlet that is connected with described Distribution Warehouse, and the extension casing that the other end is connected with described slag collection section by described thin ash outlet, described slag collection section is played in described thin grey scavenge unit source, through described thin ash outlet, extend to described lime-ash exit, and drive the lime-ash motion to described lime-ash Way out.
Above-mentioned dry-type slag-conveying device comprises a thin grey conveying device again, and described Distribution Warehouse is connected with described lime-ash outlet by described thin grey conveying device.
Above-mentioned dry-type slag-conveying device, a buffer memory storehouse is set between described thin grey exit and described Distribution Warehouse, be connected by ash pipeline and air pressure communication apparatus between described buffer memory storehouse and the described Distribution Warehouse, described air pressure communication apparatus guarantees being communicated with of described buffer memory storehouse inner air and described Distribution Warehouse inner air.
Above-mentioned dry-type slag-conveying device, also comprise a depression generator and " ⊥ " type three-way pipeline that vertically is provided with, described three-way pipeline is arranged at described Distribution Warehouse below, the vertical pipeline of described three-way pipeline is connected with described Distribution Warehouse bottom, one of them port of other two-port of described three-way pipeline is communicated with atmosphere, and another port is connected by depression generator and sludge-store cabin.
Above-mentioned dry-type slag-conveying device, also comprise a malleation generating means and " ⊥ " type three-way pipeline that vertically is provided with, described three-way pipeline is arranged at described Distribution Warehouse below, the vertical pipeline of described three-way pipeline is connected with described Distribution Warehouse bottom, vertical pipeline between the intersection of described three-way pipeline and described Distribution Warehouse is provided with the pipeline baffling device, and other two-port of described three-way pipeline is connected with described malleation generating means and sludge-store cabin respectively.
Above-mentioned dry-type slag-conveying device, described slag promote the loading end of section and the angle of horizontal plane is spent greater than 33, and described slag conveying device is the ribbon conveyer that is provided with the slag baffle plate.
The thin grey sweep-out method of above-mentioned dry-type slag-conveying device, described thin grey scavenge unit is discharged the thin ash of slag that falls within on the described slag collection section by to described thin grey Way out motion from described thin grey exit.
The thin grey sweep-out method of above-mentioned dry-type slag-conveying device, described thin grey scavenge unit will be discharged from described lime-ash exit from the described slag that discharge in described thin grey exit is carefully grey by to described lime-ash Way out motion.
The thin grey sweep-out method of above-mentioned dry-type slag-conveying device, the described slag that is discharged from from described lime-ash exit be ash carefully, carries by described thin grey conveying device and discharges.
The thin grey sweep-out method of above-mentioned dry-type slag-conveying device, the thin ash of described slag that is transferred discharge from described thin grey conveying device is discharged into described Distribution Warehouse, and by described depression generator described thin grey conveying device is sucked described sludge-store cabin.
The thin grey sweep-out method of above-mentioned dry-type slag-conveying device enters described Distribution Warehouse with the described thin ash that is discharged from, and more described thin ash is discharged from described Distribution Warehouse, and by described malleation generating means described thin ash is pressed into described sludge-store cabin.
Technique scheme of the present invention has the following advantages compared to existing technology:
(1) on any at least end of the described slag collection section of described slag carrying casing, thin ash outlet is set, carefully grey through the slag of boiler discharge so, can fall on the loading end of carrying bottom half of slag collection section from the gap location between the side of described steel band and described carrying casing, under the effect of described thin grey scavenge unit, discharge from described at least one thin ash outlet; This setting has been avoided thin grey scavenge unit in the prior art need carry relatively large thin ash promoting Duan Houcai through slag and can realize purpose that thin ash is discharged, so it is thin grey in the residual problem of lifting section in the process that slag lifting section is discharged that it has avoided the slag removal device to carry thin ash effectively, also reduce simultaneously the integral body of equipment and transported load, saved energy.
(2) this is sent out dry-type slag-conveying device described and is being provided with Distribution Warehouse in described thin grey exit, and the described Distribution Warehouse of the described thin ash that is discharged from can being packed into is temporary.
(3) dry-type slag-conveying device of the present invention is provided with the extension casing that is connected with the slag collection section in described thin ash outlet, this extension casing and slag carrying casing are combined as a casing, can guarantee that thin ash is in the process that is transported to the Distribution Warehouse that is used for storing thin ash, in extending casing, obtain air cooling fully, avoid thin ash directly to be expelled to and cause the too concentrated potential safety hazard that is caused of heat in the Distribution Warehouse in the Distribution Warehouse.
(4) also be provided with a buffer memory storehouse that is communicated with described Distribution Warehouse above described Distribution Warehouse, when described Distribution Warehouse was annotated thin ash, the temporary transient storage can be done with the thin ash from described carrying casing in described buffer memory storehouse, thereby plays the effect of a buffering.
(5) dry-type slag-conveying device of the present invention can be provided with the length of extending casing according to boiler to the distance between the Distribution Warehouse, if but above-mentioned distance is too far away, the extension casing only is set, and realizes transportation to thin ash by being positioned at the thin grey scavenge unit that extends casing, cost is too high; So the described dry-type slag-conveying device of the application can also be provided with by extending casing and thin grey conveying device and finish the purpose that thin ash is transported to Distribution Warehouse; This setup, guaranteed that thin ash can be adequately cooled on the one hand in the extension casing of suitable length, reduced the length of extending casing on the other hand and replaced, when reducing equipment cost, also can fully realize thin ash is delivered to Distribution Warehouse and guarantees the purpose that heat can not be assembled in the Distribution Warehouse with thin grey conveying device.
(6) dry-type slag-conveying device of the present invention comprises a depression generator and " ⊥ " type three-way pipeline that vertically is provided with, described three-way pipeline is arranged at described Distribution Warehouse below, the vertical pipeline of described three-way pipeline is connected with described Distribution Warehouse bottom, one of them port atmosphere of other two-port of described three-way pipeline is communicated with, and another port is connected by depression generator and sludge-store cabin.Under the suction function that described depression generator produces, the thin ash of slag successfully can be sucked out from described Distribution Warehouse, directly enter sludge-store cabin and preserve, avoid excessive the hoarding of the thin ash of slag in described Distribution Warehouse like this.
(7) dry-type slag-conveying device of the present invention is provided with and also comprises a malleation generating means and " ⊥ " type three-way pipeline that vertically is provided with, described three-way pipeline is arranged at described Distribution Warehouse below, the vertical pipeline of described three-way pipeline is connected with described Distribution Warehouse bottom, vertical pipeline between the intersection of described three-way pipeline and described Distribution Warehouse is provided with the pipeline baffling device, and other two-port of described three-way pipeline is connected with described malleation generating means and sludge-store cabin respectively; Described Distribution Warehouse below is provided with vertical three-way pipeline, can allow thin ash under the effect of gravity, fall within the intersection of described three-way pipeline, described baffling device is set blocks the air communication of the intersection of described Distribution Warehouse and described three-way pipeline, avoid the malleation generating means that thin ash is pressed into described Distribution Warehouse.
(8) slag conveying device of the present invention is the ribbon conveyer that is provided with the slag baffle plate, uses the ribbon conveyer that has the slag baffle plate to avoid the slag on the transport tape to drop promoting under the bigger situation of angle.
(9) angle of the described loading end of the described slag lifting of dry-type slag-conveying device of the present invention section and horizontal plane is set to greater than 33 degree, can be so that be promoted in the high-order process at the lime-ash that boiler is discharged, remaining very a spot of thin ash can drop down onto from the gap location of steel band and slag bearing box body side surface on the loading end of described slag carrying bottom half after the slag collection section is discharged, fall on the loading end that promotes section, but it is few falling into the thin ash of slag that promotes on the section loading end this moment, the thin ash of these slags just automatically landing to the loading end of collection section, thereby be discharged from, improved dry-type slag-conveying device better and discharged the thin grey ability of slag, thoroughly solved the described section that promotes and gone up the thin grey residue problem of slag.In addition, described slag promotes the described loading end of section and the angle of horizontal plane is set to can suitably reduce the distance between sludge-store cabin and the boiler, thereby reduce the whole floor space of dry-type slag-conveying device greater than 33 degree, has reduced engineering cost.
(10) utilize the thin grey sweep-out method of above-mentioned slag effectively bulk slag in the slag and slag fine ash to be opened conveying.Avoided simultaneously the thin ash of described slag to rise the residual problem of section effectively at described slag.
Description of drawings
Fig. 1 is the dry-type slag-conveying device schematic diagram that thin ash outlet is arranged on a slag collection section and a slag lifting section end that is connected;
Fig. 2 is arranged on the dry-type slag-conveying device schematic diagram of an end relative with slag lifting section of slag collection section for thin ash outlet;
Fig. 3 is provided with the dry-type slag-conveying device schematic diagram that extends casing for thin grey exit;
Fig. 4 is the schematic diagram of dry-type slag-conveying device two-stage conveying
Fig. 5 is the dry-type slag-conveying device schematic diagram that is provided with depression generator
Fig. 6 is the dry-type slag-conveying device schematic diagram that is provided with the malleation generating means
Fig. 7 is the dry-type slag-conveying device schematic diagram that is provided with the buffer memory storehouse
Wherein, 1-boiler, 2-slag-drip opening, 3-slag carrying casing, 4-steel band slag conveyer, 5-steel band, the thin ash outlet of 6-, 7-slag notch, 8-sludge-store cabin, the 9-slag promotes section, 10-scraper plate ash handling equipment, 11-Distribution Warehouse, 12-slag collection section, 13-collection section loading end, 14-promote the section loading end, 15-extends casing, the outlet of 16-lime-ash, the thin grey conveying device of 17-, a-promotes angle, 18-depression generator, 19-baffle plate, 20,24 is thin grey carrier pipe, 21,27 is thin grey guiding tube, and 22 is blast pipe, 23 is air inlet, and 26 is rotary feeder, 28,32 valves, 25 is the malleation generating means, and 29 is communicating pipe, and 30 is the buffer memory storehouse.
The specific embodiment
For the easier quilt of content of the present invention is clearly understood, according to this practical specific embodiment also in conjunction with the accompanying drawings, this practicality is described in further detail below.
In dry-type slag-conveying device as shown in Figure 1, the slag conveying device is a steel band slag conveyer 4, and thin grey scavenge unit is chosen as scraper plate ash handling equipment 10.
Above-mentioned dry-type slag-conveying device comprises slag carrying casing 3 and is located at steel band slag conveyer 4 in the described slag carrying casing 3; Wherein, described slag carrying casing 3 is made up of slag collection section 12 and slag lifting section 9.Slag collection section 12 is located at the below of boiler 1 slag-drip opening 2, it is near the end sealing of slag-drip opening 2, the other end promotes section 9 with described slag and is connected, the corresponding other end that described slag promotes section 9 ends that are connected with slag collection section 12 is provided with slag notch 7, promotes section 9 ends that are connected at described slag collection section 12 and described slag and is provided with thin ash outlet 6.In described slag carrying casing 3, and between the loading end (comprise collection section loading end 13 and promote section loading end 14) of steel band slag conveyer 4 and described slag carrying casing 3, be provided with scraper plate ash handling equipment 10.
When above-mentioned dry-type slag-conveying device is worked, slag is discharged from from the slag-drip opening 2 of boiler 1, enter described slag collection section 12, and fall within on the steel band 5 of described steel band slag conveyer 4, described steel band slag conveyer 4 promotes section 9 slags that will fall within on the described steel band 5 by described slag and is sent to described slag lifting section 9 upper ends, and described slag is entered the sludge-store cabin 8 of being located at described slag notch 7 belows by described slag notch 7.In this process, carrying version and the slit (herein not marking) between described slag carrying casing 3 sides that the thin ash (herein do not mark) of a part in the slag that boiler is discharged sees through described steel band slag conveyer 4 fall within on the loading end 13 of bottom, described slag carrying casing 3 collection sections, described scraper plate ash handling equipment 10 is to described thin ash outlet motion, under the effect of described thin grey scavenge unit, the described thin ash that falls within on the described collection section loading end 13 can be discharged in the Distribution Warehouse 11 of being located at described thin ash outlet 6 places by described thin ash outlet 6.
On the described slag collection section of described slag carrying casing, be provided with thin ash outlet, can the described thin ash of the carrying bottom half of slag collection section will be fallen into from the gap location between the side of described steel band and described carrying casing, external from described thin ash outlet by described scraper plate ash handling equipment discharge slag bearing box, and no longer need thin ash to be discharged, thereby avoided the scraper plate ash handling equipment in the process that described thin ash is discharged, to cause described thin ash to promote the residual of section at described slag through promoting Duan Houcai.
The another kind of embodiment of present embodiment is, offers outlet in the bottom of described sludge-store cabin and described Distribution Warehouse, and the thin ash that is positioned at described sludge-store cabin and described Distribution Warehouse can be discharged outside storehouse by this exit.
As shown in Figure 2, the difference of the dry-type slag-conveying device among dry-type slag-conveying device in the present embodiment and the embodiment 1 only is: described thin ash outlet 6 is arranged at the end of described slag collection section 12 near boiler 1 slag-drip opening 2, described scraper plate ash handling equipment 10 can enter described thin ash in the Distribution Warehouse 11 of being located at described thin ash outlet 6 places by described thin ash outlet 6 to these thin ash outlet 6 motions.
Dry-type slag-conveying device of the present invention is except that the structure described in above-mentioned two embodiment, also changeable type is provided with thin ash outlet 6 simultaneously for the two ends of the described slag collection section 12 mentioned in embodiment 1 and embodiment 2, and described scraper plate ash handling equipment is towards one of them thin grey Way out motion.
The two ends of carrying the described slag collection section of casing at described slag are provided with thin ash outlet, can boiler will be come from, fall into the described thin ash of the carrying bottom half of slag collection section from the gap location between the side of described steel band and described carrying casing, to be discharged the slag bearing box from described two thin ash outlets by described scraper plate ash handling equipment external, cause thin ash to promote the residual of section at described slag in the process of having avoided the scraper plate ash handling equipment will thin ash to discharge.
Dry-type slag-conveying device as shown in Figure 3 comprises slag carrying casing 3 and is located at steel band slag conveyer 4 in the described slag carrying casing 3; Wherein, described slag carrying casing 3 is made up of slag collection section 12 and slag lifting section 9.Slag collection section 12 is located at the below of boiler 1 slag-drip opening 2, it is near the end sealing of slag-drip opening 2, the other end promotes section 9 with described slag and is connected, the corresponding other end that described slag promotes section 9 ends that are connected with slag collection section 12 is provided with slag notch 7, promotes section 9 ends that are connected at described slag collection section 12 and described slag and is provided with thin ash outlet 6.In this dry-type slag-conveying device, also be provided with an end by the described thin ash outlet 6 extension casings 15 that are connected with described slag collection section 12, described extension casing 15 other ends are provided with lime-ash outlet 16, are provided with Distribution Warehouse 11 in described lime-ash exit.Be provided with scraper plate ash handling equipment 10 at steel band slag conveyer 4 and 13 of described slag carrying casing 3 collection section loading ends, described scraper plate ash handling equipment 10 extends to described lime-ash by described slag collection section 12 and described extension casing 15 and exports 16 places, and described lime-ash exports 16 places and is provided with Distribution Warehouse 11.
Slag is discharged from from the slag-drip opening 2 of boiler 1 and enters described slag collection section 12, and fall within on the steel band 5 of described steel band slag conveyer 4, described steel band slag conveyer 4 promotes section 9 slags that will fall within on the described steel band 5 by described slag and is sent to described slag lifting section 9 upper ends, and described slag is entered the sludge-store cabin 8 of being located at described slag notch 7 belows by described slag notch 7.In this process, the thin ash (herein do not mark) of a part in the slag that boiler is discharged falls within on the described slag carrying casing 3 collection section loading ends 13 through the slit (not marking) between loading plate on the described steel band slag conveyer 4 and described slag carrying casing 3 sides herein, and described scraper plate ash handling equipment 10 is expelled to described thin ash (not marking) the Distribution Warehouse 11 herein from described slag collection section 12 to described lime-ash outlet 16 motions.
In the present embodiment, as embodiment that can conversion, described thin ash outlet equally also can be arranged at the end of described slag collection section 12 near boiler 1 slag-drip openings 2, and this kind set-up mode can be realized purpose of the present invention too.
As shown in Figure 4, the another kind of embodiment of present embodiment is, adopted the two-stage conveying method, and the slag collection section of described dry-type slag-conveying device receives the lime-ash from the previous stage slag-conveying device, and then will described thin ash removing according to above-mentioned thin grey reset mode.
Dry-type slag-conveying device as shown in Figure 5 comprises slag carrying casing 3 and is located at steel band slag conveyer 4 in the described slag carrying casing 3 that the steel band 5 of described steel band slag conveyer 4 is provided with baffle plate 19; Wherein, described slag carrying casing 3 is made up of slag collection section 12 and slag lifting section 9.Slag collection section 12 is located at the below of boiler 1 slag-drip opening 2, it is near the end sealing of slag-drip opening 2, the other end promotes section 9 with described slag and is connected, the corresponding other end that described slag promotes section 9 ends that are connected with slag collection section 12 is provided with slag notch 7, promotes section 9 ends that are connected at described slag collection section 12 and described slag and is provided with thin ash outlet 6.
Described slag promotes section loading end 14 and horizontal plane angle, is called to promote angle a, and described lifting angle a is greater than thin grey angle of repose 33 degree; Described steel band 5 is provided with slag baffle plate 18, and described slag baffle plate 18 can prevent the landing from the steel band 5 of described slag promoting under the bigger situation of angle a.Described dry-type slag-conveying device also is provided with an end by the described thin ash outlet 6 extension casings 15 that are communicated with described slag collection section 12, described extension casing 15 other ends are provided with lime-ash outlet 16, be provided with scraper plate ash handling equipment 10 at steel band slag conveyer 4 and 13 of described slag carrying casing 3 collection section loading ends, described scraper plate ash handling equipment 10 extends to described lime-ash by described slag collection section 12 and described extension casing 15 and exports 16 places, exports 16 places at described lime-ash and is provided with the thin grey conveying device 17 of leading to Distribution Warehouse 11; Described dry-type slag-conveying device also comprises a depression generator 18, described depression generator 18 is arranged between described Distribution Warehouse 11 and the sludge-store cabin 8, and be connected with described Distribution Warehouse 11 and sludge-store cabin 8 by the three-way pipeline of vertical " ⊥ " type, wherein, the described three-way pipeline that is connected with described Distribution Warehouse 11 partly is called thin grey guiding tube 21, the described three-way pipeline that is connected with described depression generator 18 partly is called thin grey carrier pipe 20, and another pipeline of described three-way pipeline is the blast pipe 22 that has air inlet 23; Described depression generator 18 is connected with sludge-store cabin 8 by thin grey carrier pipe 24.
Slag is discharged from from the slag-drip opening 2 of boiler 1 and enters described slag collection section 12, and fall within on the steel band 5 of described steel band slag conveyer 4, described steel band slag conveyer 4 promotes section 9 slags that will fall within on the described steel band 5 by described slag and is sent to described slag lifting section 9 upper ends, and by described slag notch 7 described slag is entered described sludge-store cabin 8.In this process, the thin ash (herein do not mark) of a part in the slag that boiler is discharged falls within on the described slag carrying casing 3 collection section loading ends 13 from the gap location of steel band and slag bearing box body side surface; In addition, also having the thin ash of small part to fall slag from described steel band 5 in lifting process promotes on the section loading end 14, because described lifting angle a is greater than described thin grey angle of repose 33 degree, described thin ash can overcome and described slag promotes section 14 maximum static friction power of loading end and from described the liftings section loading end 14 landing to collection section loading end 13, described scraper plate ash handling equipment 10 is by moving to described thin ash outlet, the thin ashes of described two parts (herein not marking) are drained on the described thin grey conveying device 17 through described lime-ash outlet 16, and described thin grey conveying device 17 is sent described thin ash into described Distribution Warehouse 11; The thin ash that falls within the described Distribution Warehouse 11 can be under the effect of gravity, fall into vertical intersection, by opening described depression generator 18, in described thin grey carrier pipe 20, form negative pressure less than atmospheric pressure, the atmosphere that is entered by blast pipe 22 by air inlet 23 can be pressed into described depression generator 18 with the thin ash that falls within described three-way pipeline intersection, and sends in the described sludge-store cabin 8 by thin grey carrier pipe 24.
In the present embodiment,, can not use vertical described three-way pipeline, and adopt the mode that directly described Distribution Warehouse is connected with described depression generator as disposable embodiment.
Another embodiment as present embodiment, described depression generator in the described dry-type slag-conveying device can directly be connected with thin ash outlet, and thin grey conveying device and Distribution Warehouse are not set, its negative pressure that also can utilize negative pressure device to produce will suck in the sludge-store cabin 8 through the thin ash that thin ash outlet is discharged, and equally also can realize purpose of the present invention.
As shown in Figure 6, the difference of present embodiment and embodiment 4 is, described dry-type slag-conveying device does not adopt described depression generator 18, but carrier pipe described in Fig. 5 24 directly is communicated with described carrier pipe 20, and as shown in Figure 6 malleation generating means 25 is set at as shown in Figure 5 described air inlet 23 places, and be provided with the pipeline baffling device on described thin grey guiding tube 21, the baffling device of pipeline described in the present embodiment is a rotary feeder 26; When described rotary feeder 26 was opened, the thin ash that is positioned at described Distribution Warehouse 11 can be directed to the intersection of described three-way pipeline by described thin grey guiding tube 21, and described batcher of while also intercepts being communicated with of described Distribution Warehouse 11 and described blast pipe 22; Open described malleation generating means 25 this moment, impels the malleation that forms in described blast pipe 22 greater than atmospheric pressure, thereby the thin ash that will be positioned at the intersection of described three-way pipeline is pressed into described sludge-store cabin by described thin grey carrier pipe 20 with thin grey carrier pipe 24.
As described in Figure 7, the difference of present embodiment and embodiment 5 is, above described Distribution Warehouse 11 and below the outlet of described thin grey conveying device 17, set up buffer memory storehouse 30, described buffer memory storehouse 30 and described Distribution Warehouse 11 are communicated with by the thin grey guiding tube 27 that is provided with the pipeline baffling device, this pipeline baffling device in the described present embodiment is a valve 32, and described buffer memory storehouse 30 and described Distribution Warehouse 11 are communicated with by the communicating pipe 29 that is provided with valve 28 again; The collect thin ash that is excluded since described thin grey conveying device 17 and do temporary transient storage of described buffer memory storehouse 30, when to be needed, described valve 32 is opened, thereby be communicated with buffer memory storehouse 30 and described Distribution Warehouse 11, thin ash falls into described conveying storehouse 31 from described buffer memory storehouse 30, after having supplied with a certain amount of thin ash, described thin grey guiding tube 27 is closed and intercepted to described valve 32, when to described Distribution Warehouse 11, supplying with thin ash from described buffer memory storehouse 30, described valve 28 opens and makes described Distribution Warehouse 11 and described buffer memory storehouse 30 to be communicated with by described communicating pipe 29, its purpose is to make that the air pressure in described Distribution Warehouse 11 and the described buffer memory storehouse 30 equates, is convenient to described thin ash and enters described Distribution Warehouse 11 by described thin grey guiding tube 27.
Be by the advantage that above described Distribution Warehouse 11, is provided with the described buffer memory storehouse 30 that is connected with described Distribution Warehouse 11, when employed Distribution Warehouse 11 is less slag storehouse, and it is more from the thin ash that the outlet of thin grey conveying device 17 is discharged, and described Distribution Warehouse 11 is when being not enough to load so much thin ash, can do temporary transient storage by described buffer memory storehouse 30, when treating that described Distribution Warehouse 11 has enough spaces, thinner ash is introduced described Distribution Warehouse 11 from described buffer memory storehouse 30, and then finish follow-up conveying.
The another kind of implementation method of present embodiment is, described buffer memory storehouse 30 directly exported 6 with described lime-ash outlet 16 or described thin ash be connected, and finishes the conveying to described thin ash.
Obviously, the foregoing description only is for example clearly is described, and is not the qualification to embodiment.For those of ordinary skill in the field, can also make other changes in different forms according to varying in size of equipment on the basis of the above description.Here need not also can't give exhaustive to all embodiments.And conspicuous variation of being extended out thus or change still are among the protection domain of this practicality creation.
Claims (15)
1. a dry-type slag-conveying device comprises slag carrying casing, is located at the slag conveying device in the described slag carrying casing, and is located at the thin grey scavenge unit between described slag conveying device and the described slag carrying bottom half; Described slag carrying casing promotes section by slag collection section and slag and forms, described slag promotes the top that section links to each other with described slag collection section and is positioned at described slag collection section, promotes the section other end corresponding with the continuous end of described slag collection section at described slag and is provided with slag notch; It is characterized in that: any at least end in the two ends of described slag collection section is provided with thin ash outlet, and described thin grey scavenge unit drives thin ash motion to described at least one thin grey Way out.
2. dry-type slag-conveying device according to claim 1 is characterized in that: described dry-type slag-conveying device also comprises Distribution Warehouse, and described Distribution Warehouse is connected with described thin ash outlet.
3. dry-type slag-conveying device according to claim 2, it is characterized in that: described dry-type slag-conveying device comprises that also one one end is provided with the lime-ash outlet that is connected with described Distribution Warehouse, and the extension casing that the other end is connected with described slag collection section by described thin ash outlet, described slag collection section is played in described thin grey scavenge unit source, through described thin ash outlet, extend to described lime-ash exit, and drive the lime-ash motion to described lime-ash Way out.
4. dry-type slag-conveying device according to claim 3 is characterized in that: described dry-type slag-conveying device comprises a thin grey conveying device again, and described Distribution Warehouse is connected with described lime-ash outlet by described thin grey conveying device.
5. dry-type slag-conveying device according to claim 2, it is characterized in that: a buffer memory storehouse is set between described thin grey exit and described Distribution Warehouse, be connected by ash pipeline and air pressure communication apparatus between described buffer memory storehouse and the described Distribution Warehouse, described air pressure communication apparatus guarantees being communicated with of described buffer memory storehouse inner air and described Distribution Warehouse inner air.
6. dry-type slag-conveying device according to claim 4, it is characterized in that: a buffer memory storehouse is set between described lime-ash exit and described Distribution Warehouse, be connected by ash pipeline and air pressure communication apparatus between described buffer memory storehouse and the described Distribution Warehouse, described air pressure communication apparatus guarantees being communicated with of described buffer memory storehouse inner air and described Distribution Warehouse inner air.
7. according to claim 5 or 6 described dry-type slag-conveying devices, it is characterized in that: described ash pipeline inside is provided with the pipeline occluding device.
8. according to the arbitrary described dry-type slag-conveying device of claim 2-6, it is characterized in that: described dry-type slag-conveying device also comprises a depression generator and " ⊥ " type three-way pipeline that vertically is provided with, described three-way pipeline is arranged at described Distribution Warehouse below, the vertical pipeline of described three-way pipeline is connected with described Distribution Warehouse bottom, one of them port of other two-port of described three-way pipeline is communicated with atmosphere, and another port is connected by depression generator and sludge-store cabin.
9. according to the arbitrary described dry-type slag-conveying device of claim 2-6, it is characterized in that: described dry-type slag-conveying device also comprises a malleation generating means and " ⊥ " type three-way pipeline that vertically is provided with, described three-way pipeline is arranged at described Distribution Warehouse below, the vertical pipeline of described three-way pipeline is connected with described Distribution Warehouse bottom, vertical pipeline between the intersection of described three-way pipeline and described Distribution Warehouse is provided with the pipeline baffling device, and other two-port of described three-way pipeline is connected with described malleation generating means and sludge-store cabin respectively.
10. according to the arbitrary described dry-type slag-conveying device of claim 1-9, it is characterized in that: described slag promotes the loading end of section and the angle of horizontal plane is spent greater than 33, and described slag conveying device is the ribbon conveyer that is provided with the slag baffle plate.
11. thin grey sweep-out method of using the arbitrary described dry-type slag-conveying device of claim 1-4, it is characterized in that: described thin grey scavenge unit is discharged the thin ash of slag that falls within on the described slag collection section by to described thin grey Way out motion from described thin grey exit.
12. thin grey sweep-out method according to the described dry-type slag-conveying device of claim 11, it is characterized in that: described thin grey scavenge unit will be discharged from described lime-ash exit from the described slag that discharge in described thin grey exit is carefully grey by to described lime-ash Way out motion.
13. the thin grey sweep-out method according to the described dry-type slag-conveying device of claim 12 is characterized in that: the described slag that is discharged from from described lime-ash exit is ash carefully, carries by described thin grey conveying device and discharges.
14. thin grey sweep-out method according to the described dry-type slag-conveying device of claim 13, it is characterized in that: the thin ash of described slag that is transferred discharge from described thin grey conveying device is discharged into described Distribution Warehouse, and by described depression generator described thin grey conveying device is sucked described sludge-store cabin.
15. thin grey sweep-out method according to the described dry-type slag-conveying device of claim 13, it is characterized in that: the described thin ash that will be discharged from enters described Distribution Warehouse, again described thin ash is discharged from described Distribution Warehouse, and described thin ash is pressed into described sludge-store cabin by described malleation generating means.
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| CN 200910143203 CN101660760B (en) | 2009-05-20 | 2009-05-20 | Dry-type slag-conveying device |
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| CN 200910143203 CN101660760B (en) | 2009-05-20 | 2009-05-20 | Dry-type slag-conveying device |
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