CN103464431A - Deashing device of smoke SCR urea denitration equipment - Google Patents
Deashing device of smoke SCR urea denitration equipment Download PDFInfo
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- CN103464431A CN103464431A CN201310398125XA CN201310398125A CN103464431A CN 103464431 A CN103464431 A CN 103464431A CN 201310398125X A CN201310398125X A CN 201310398125XA CN 201310398125 A CN201310398125 A CN 201310398125A CN 103464431 A CN103464431 A CN 103464431A
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Abstract
The invention discloses a deashing device of smoke SCR urea denitration equipment. The deashing device comprises a pyrolysis chamber for providing a reaction space to dissolved urea and smoke, a rotating rod arranged at the bottom in the pyrolysis chamber, a spiral blade arranged on the rotating rod, a crystal collecting port arranged on a pyrolysis chamber wall below the rotating rod, and a containing box connected on the outer side of the crystal collecting port, two ends of the rotating rod are fixed on a side wall of a pyrolysis chamber tail pipe, and a driving motor driving the rotating rod to work is mounted outside the pyrolysis chamber. Crystals at the bottom of the pyrolysis chamber are timely treated by a packing auger, so that temporary or intermittent crystallization is timely processed, and the problem that a lot of crystals appear in a short time due to a vicious circle caused after a small amount of crystals appear is avoided, working time of denitration equipment is increased, the number of maintenance is reduced, and working efficiency is improved. Mechanical crystal removing is adopted, so that labor amount of workers is reduced, and processing speed is increased.
Description
Technical field
The present invention relates to mechanical field, be specifically related to a kind of ash slag cleaning device of can easy cleaning processing the indoor crystallization of urea pyrolysis of boiler smoke.
Background technology
The place of in thermal power plant's one class, using boiler, boiler can produce a large amount of flue gases when burning, according to relevant this type of flue gas of stipulating, must just can be discharged in atmosphere through processing, what in this type of flue gas, content was maximum is sulphur and nitre, therefore at present when processing, normal adopt respectively or for the two equipment, flue gas is purified simultaneously, the existing means that desulfurization in flue gas is adopted are FGD technology, specifically are divided into again the various ways such as wet desulphurization, dry desulfurization.And denitrating flue gas mainly adopts, it is the SCR technology, the reaction of nitrogen oxides that the SCR technology mainly utilizes ammonia to enter in reactor and flue gas generates nitrogen, and reach the purification purpose, the source of ammonia comprises liquefied ammonia, ammoniacal liquor and urea, wherein the danger of liquid nitrogen is higher, and the restriction when storage and use is too large; And the large operating cost of ammoniacal liquor occupation area of equipment is high; What therefore use at present was maximum is urea ammonia processed, urea ammonia processed adopts pyrolysismethod, first urea is dissolved, concentration is 40～50%, then spraying into atomized drop in ， pyrolysis chamber, pyrolysis chamber and reacted with flue gas after nozzle atomization, is that normal pressure and temperature are 300～500 ℃ of left and right in pyrolysis chamber, origin of heat in pyrolysis chamber, in the burning of natural gas or diesel oil, adopts pyrolysismethod all to have relatively high expectations to the temperature of whole course of reaction, distribution and the level of control of gas flowfield.
Pyrolysis chamber is pipeline or the reactor of a reinforcing, when occurring that urea liquid can't atomization or atomization when incomplete, urea liquid can be attached on the furnace wall of pyrolysis chamber, form the solid crystal thing after cooling, the appearance of this crystal is one and exceedes and drill the strong increasing process of healing, once have urea crystals factor continuous service, accumulation due to crystallization, the destruction that can cause the flow field hot-fluid to distribute, crystal can surge suddenly in the some time, in the time of serious, can stop up in a short period of time whole pyrolysis oven tail pipe, and once occur that this situation just can only be shut down and open pyrolysis chamber and removed, this just delay the normal operation of whole power plant.
Summary of the invention
Can only shut down the problem of removing for solving the urea crystals of in prior art, flue gas being carried out to produce in the pyrolysis chamber of pyrolysis denitration device, the invention provides ash slag cleaning device in a kind of SCR pyrolysis chamber that can remove at any time pyrolysis chamber's intercrystalline, concrete scheme is as follows: a kind of ash slag cleaning device of flue gas SCR urea denitration device, being included as the rear urea of dissolving and flue gas provides the pyrolysis chamber of reaction compartment, it is characterized in that, described ash slag cleaning device comprises the swingle that is arranged on pyrolysis chamber's inner bottom part and is arranged on the spiral vane on swingle, be arranged on connecing brilliant mouth and being connected to the storage case that connects the brilliant mouthful of outside on swingle below pyrolysis locular wall, the two end axles of described swingle is fixed on the sidewall of pyrolysis chamber's tail pipe, the drive motors that drives swingle work is installed in the outside of pyrolysis chamber.
For avoiding affecting the temperature in pyrolysis chamber: the described brilliant mouth place that connects is provided with the movable sealing plate.
The crystallization of solidifying for ease of helical blade cleaning: described spiral vane by a plurality of independently blades, formed and each blade between be provided with interval.
Be attached to the crystal on helical blade for convenience of cleaning: described blade is for being movably arranged on swingle, wherein on swingle, the swing-around trajectory by spiral vane arranges the inner large little chute of opening of multistage, the two bottom sides of blade is respectively arranged with the clamp groove of clamping chute dual-side, the length of blade is less than the length of chute, blade pass is crossed clamp groove and is stuck on chute and is arranged on swingle, be provided with fixing hole and loose slot on blade, on fixing hole, pin is fixed a pull bar, and the other end of pull bar is movably fixed in the loose slot of adjacent blades.
For ease of the connection between each blade: described pull bar is connected an end with loose slot be the U-shaped end, on the opening of U-shaped end, be provided with through loose slot and respectively with the fixing fixed bar of U-shaped dual-side.
Blade is installed for convenience: an end of described chute is provided with the insert port of inserting chute for the clamp groove of blade, is provided with shrouding on insert port, and described shrouding is fixed on insert port by axle or screw.
For preventing that crystal from entering chute: the length of described blade is less than the length of chute, and the top gripper edge length of clamp groove is greater than the bottom gripper edge length of clamp groove, and the top gripper edge that blade grows while being positioned at chute one end covers the chute exposed.
For making can to interact between blade: the length of described loose slot equals the length that chute deducts blade.
For improving the mobility of blade: on the termination of described swingle, be provided with spring, one end of described spring is connected the other end and is connected with adjacent blade with swingle, in the swingle termination, on corresponding pyrolysis chamber's inwall, be provided with the driving lever crossing with the spring swing-around trajectory.
For reducing the friction between blade and chute: in described chute or the bottom of blade is equipped with ball.
The present invention processes the crystal of bottom, pyrolysis chamber in time by auger, the crystalline polamer of temporary or discontinuity is processed at any time, avoided because the rear vicious circle that causes appears in a small amount of crystallization, the a large amount of problems that occur of short time intercrystalline, extended the working time of denitration device, reduce maintenance times, improved operating efficiency.Simultaneously, adopt machinery except the brilliant amount of labour that has also reduced the workman, can not consider the impact of temperature and flue gas, improve processing speed.The problem that the blade that the utilization activity is installed has avoided crystallization and freezing can't remove on blade, by the mutual action of spring and driving lever, further improved the mobility of blade, accelerated to eliminate the process of solidification and crystallization thing.Utilize pull bar can keep the global shape of each individual vanes, can make action mutually between each blade simultaneously, improve the effect that individual blade is abolished the solidification and crystallization thing.Blade and chute adopt the structure of ball-type can reduce friction, improve the flexibility that blade moves.Effect of the present invention is remarkable, can realize, under non-stop-machine state, pyrolysis chamber is carried out to scarfing cinder, has improved the flue gas treatment effeciency, has also reduced workman's labour intensity simultaneously.
The accompanying drawing explanation
Fig. 1 structural representation of the present invention;
The structural representation of Fig. 2 individual vanes;
The movable structural representation of installing of Fig. 3 blade and swingle;
Fig. 4 is with the sliding groove structure schematic diagram of shrouding;
The connection diagram of Fig. 5 blade and blade;
Fig. 6 blade pull structural representation;
Attached number in the figure explanation: 1-pyrolysis chamber, 2-tail pipe, 3-ash slag cleaning device, 301-drive motors, 302-spiral vane, 303-swingle, 304-clamp groove, 305-top gripper edge, 306-bottom gripper edge, 307-chute, 308-insert port, 309-shrouding, 310-pull bar, 311-loose slot, 312-fixed bar, 313-fixing hole, 314-spring, 315-driving lever, 316-blade, 4-storage case, 5-connect brilliant mouthful, 501-shrouding.
The specific embodiment
As shown in Figure 1, the ash slag cleaning device of flue gas SCR urea denitration device disclosed by the invention, mainly be arranged on the position of boiler smoke discharge pipe, it generates urea liquid after utilizing urea and aquathermolysis, by special shower nozzle by the urea liquid atomization, then with flue gas, mixed, utilize ammonia in urea liquid and the nitre in flue gas to react, generate NH3, H2O and CO2, thereby reach the purpose of purifying smoke, critical piece comprises the urea dissolver of dissolved urea, the pyrolysis chamber 1 of reaction compartment is provided for dissolving rear urea and flue gas, flue gas is entered by the top of pyrolysis chamber 1, with by the tail pipe of bottom, discharged after atomize urea reacts, shower nozzle is arranged on the top of pyrolysis chamber, the ammoniacal liquor of atomization is inwardly sprayed, atomized ammonia can be at a certain temperature with pyrolysis chamber in flue gas carry out hybrid reaction, atomized ammonia can be used up fully in the hybrid reaction with flue gas under normal circumstances, that by tail pipe, is discharged only has the impurity in water and wind and flue gas, because the blast of a wind is very large, above-mentioned dust can be discharged tail pipe with flue gas, but because control and the mixing uniformity between reacting gas of the 1 pair of temperature in pyrolysis chamber has very high requirement, once can not fully react the phenomenon that just there will be atomized ammonia cryogenic temperature condensation Cheng Jing, and this phenomenon will affect giving vent to anger of tail pipe when serious, process and can thoroughly stop up tail pipe not in time, thereby whole denitrating system is quit work, for preventing the generation of above-mentioned phenomenon, the present invention is provided with ash slag cleaning device 3 specially in the tail pipe of bottom, pyrolysis chamber, described ash slag cleaning device 3 comprises the swingle 303 that is arranged on the bottom, pyrolysis chamber, be arranged on the spiral vane 302 on swingle 303, drive the drive motors 301 of swingle work, be arranged on connecing brilliant mouthful 5 and being connected to the storage case 4 that connects the brilliant mouthful of outside on swingle 303 below pyrolysis locular walls, the two end axles of described swingle 303 is fixed on the sidewall of pyrolysis chamber's 1 tail pipe 2, it is outside also by 303 work of drive shaft swingle that described drive motors 4 is arranged on pyrolysis chamber 1.This programme is processed crystal and the impurity of 1 bottom, pyrolysis chamber in time by the auger structure, the crystalline polamer of temporary or discontinuity is processed immediately, avoided because the rear vicious circle that causes appears in a small amount of crystallization, the a large amount of problems that occur of short time intercrystalline, extended the working time of denitration device, reduce maintenance times, improved operating efficiency.Simultaneously, adopt machinery except the brilliant amount of labour that has also reduced the workman, can not consider the impact of temperature and flue gas, improve processing speed.During use, by 301 rotations that can realize swingle of drive motors, thereby crystal and the impurity that will be deposited in the tail pipe place push connect the direction of brilliant mouthful 5 to, by connecing brilliant mouthful 5, fall in storage case 4, then in due course storage case 4 is emptied, repeat the cleaning that said process realizes pyrolysis chamber's intercrystalline.
For avoiding connecing brilliant mouthful 5 normal operation that affect pyrolysis chamber 1, the present invention is provided with movable sealing plate 501 meeting brilliant mouth 5 places.When not needing to clear up, will connect brilliant mouthful of 5 sealings by sealing plate 501, prevent from affecting the temperature in pyrolysis chamber, the double swing doors that concrete sealing plate 501 can adopt board plug type or open to storage case 4 directions.With connecing brilliant mouthful 5, employing equally is tightly connected concrete storage case 4, with the air temperature and current that does not affect as much as possible pyrolysis chamber, change, connected mode can adopt the fastening structure contacted by sealing gasket or soft resistant to elevated temperatures rubber tube connects or engage thread connects.And the structure of storage case 4 can be the structures such as the large father-in-law's shape in the little inside of opening, trapezoidal, box-shaped.For ease of carrying storage case 4, the fork truck road inserted for fork of forklift truck is set in the bottom of storage case 4, or roller, slideway structure are set simultaneously.Install for convenience of storage case 4 and the sealing that connects brilliant mouthful 5 simultaneously, in the bottom of storage case, hydraulic elevating platform is set, hydraulic elevating platform can rotate simultaneously, facilitates the lift adjustment of storage case and spins.
As shown in Figure 2, the smoke discharging effect that better promotes crystallization and avoid affecting tail pipe for convenience of spiral vane, described spiral vane 302 of the present invention by a plurality of independently blades 316, formed and each blade 316 between be provided with interval.Spiral vane 302 arranges around swingle 303 on the whole, but whole spiral vane 302 is comprised of a plurality of independently blades 316, between each blade 316, keep at a certain distance away, concrete distance is determined according to the size of tail pipe 1, also can set according to the design human needs, adopt spaced blade 316 to make swingle 302 in rotary course, blade 316 can promote or destroy the crystallization condensed on swingle or blade, the problem of avoiding crystallization can't remove with the swingle rotation.Adopt the blade 316 of said structure can independently be welded on swingle 303, also can adopt bottom to be connected and shape that top is broached-tooth design.
As Fig. 3, shown in 4, for improving the effect of removing crystallization, prevent that crystallization and freezing from synchronously rotating and can't remove at same swingle simultaneously, described swingle 303 of the present invention is movable the installation with blade 316, wherein on swingle 303, the swing-around trajectory by spiral vane arranges the inner large little chute 307 of opening of multistage, be the spiral setting of chute 307 along the shaft intermittent of swingle 303, the two bottom sides of blade 316 is respectively arranged with the clamp groove 304 of clamping chute dual-side, the length of blade 316 is less than the length of chute 307, such structure makes blade 316 can move around along chute 307 after stressed, blade 316 is stuck in chute 307 and is arranged on swingle 303 by clamp groove 304, blade 316 after grafting only can move and can not move left and right along chute 307 directions on swingle 303, be provided with fixing hole 313 and loose slot 311 on blade 316, on fixing hole 313, pin is fixed a pull bar 310, the other end of pull bar 310 is movably fixed in the loose slot 311 of adjacent blades.Make by the way the blade 316 can either be in the interior movement of chute 307, utilize again pull bar 310 that each blade 316 is fixed into to an integral body simultaneously, avoid blade 316 to occur tilting, adopt the mode activity steady brace 310 of pin, can make pull bar 310 move with blade 316 and do not affect the mobile effect of blade 316, can prevent from again on pull bar 310 condensing crystallization simultaneously.If when swingle 303 rotates, crystallization and freezing is on blade, blade 316 can be limited on the current location of chute 307 by crystallization, and not understood by the blade 316 of crystallization and freezing of other promotes be solidified blade under the effect of pull bar 310, thereby make to be solidified blade and produce pulling force or thrust forward or backward, thereby loosening solidification and crystallization makes it by blade 316, be shifted onto and connect brilliant mouthful 5 and discharge, prevented crystallization and freezing fully on auger and the problem that can't remove.
During specific works, swingle 303 is rotated under the driving of drive motors 301, because the length of chute 307 is greater than the length of blade 316, therefore swingle 303 is when rotating, if blade 316 by crystallization and freezing in position, the nonsynchronous phenomenon of rotating speed that there will be rotating speed and the blade 316 of swingle 303, swingle 303 can be with the crystallization of moving vane 316 shock coagulations on blade in this case, the blade movement that the pull bar simultaneously connected between each blade can pull or promote to be lived by crystallization and freezing, improved the dynamic impact problem of being lived blade by crystallization and freezing, the length that the length of the loose slot 311 on each blade 316 equals chute 307 deducts the length of blade 316, when previous blade 316 moves to the top of chute 307, pull bar 310 other ends on it are positioned at the top of a rear blade loose slot 311, then a blade 316 now is positioned at the top of its chute 307 equally, under this state, when previous blade 316 moves to the rearmost end of its chute 307, pull bar 310 other ends on it are positioned at loose slot 311 rearmost ends of a rear blade 316, now a rear blade 316 can remain on the position of its chute 307 tops, the motion of previous pull bar 310 can not impact it, but now a rear blade can be subject to the impact of back blade 316 positions again.For improving the stablizing effect of pull bar to blade, pull bar 310 of the present invention is connected an end with loose slot 311 be the U-shaped end, on the opening of U-shaped end, be provided with through loose slot 311 and respectively with the fixing fixed bar 312 of U-shaped dual-side, during installation, the U-shaped end of pull bar 310 is extend into respectively the position of loose slot 311 by the dual-side of blade 316, by fixed bar 312, be limited in loose slot 311 again, the shape of pull bar 310 can be the shape adapted with blade 316 torsion resistances, can more be adjacent to blade 316 like this, form better chucking power.The mode of employing activity is installed blade 316, need swingle 303 in forward after a period of time, several circles of corresponding reversion, so that blade is got back to original position under the drive of swingle 303, the rotation of swingle 303 can make all blades 316 be positioned at the rear end of chute 307 under effect of inertia, if wherein certain blade 316 by crystallization and freezing in original place, also can other blade pull and promote under get back to rear end, avoided crystallization to adhere to the problem that can't break away from, same when reversing, can make all blades get back to the other end when swingle 303, can thoroughly dispose the crystal in pyrolysis chamber by the way, as shown in Figure 1, for said structure, connect brilliant mouthful 5 and can arrange respectively one at the two ends of swingle 303, can both release crystallization during swingle 303 rotating like this.
As shown in Figure 4, Leaf 316 of the present invention can adopt the end at chute 307 that the insert port 308 that opening is large is set with the mounting means of swingle 303, the clamping chute 304 that makes blade 316 by insert port 308 insert chutes 307 interior after, recycle corresponding shrouding 309 by bolt by insert port 308 sealings.Concrete shrouding 309 can be that a side axle is connected to the movable door structure on swingle, can be also that four limits are fixed by screws in the structure on swingle.In addition owing to being provided with guide rod 310 between each blade 316 and installing for movable, and the final distance and position that guide rod 310 can limit blade 316, therefore can shrouding be installed yet and directly utilize guide rod to come limit blade by shifting out in chute.In order to prevent that crystal from entering in chute the movement that affects blade, the length of Leaf 316 of the present invention is less than the length of chute 307, top gripper edge 305 length of clamp groove 304 are greater than bottom gripper edge 306 length of clamp groove 304, and the top gripper edge 305 that blade 316 grows while being positioned at chute 307 1 end covers the chute 307 exposed.By said structure, make blade when mobile, the top gripper edge 305 of clamp groove 304 can block the opening of chute 307 always, avoid foreign material to fall in chute, top gripper edge 305 length between adjacent blades are independent of each other, and the interval of each chute 307 need to be more than or equal to the top gripper edge length sum of two blades.
To determine clearance time, on the sidewall of pyrolysis chamber 1 of the present invention, transparent windows is installed for the state of understanding at any time pyrolysis chamber.In addition corresponding weight induction device can be set in the bottom of tail pipe, by the variation of crystal weight, send corresponding alarm.
As shown in Figure 6, for further controlling the movement of blade, the present invention arranges spring 314 at the place, one or both ends of swingle 303, one end of spring 314 is fixed on the other end on swingle 303 and is separately fixed on adjacent blade 316, all like this blades 316 can be limited on the centre position of each chute 307 by the spring 314 at two ends under normal condition, the position of two springs 314 is oppositely arranged on swingle 303, be that both lay respectively on the position that swingle 180 degree are relative, two fixedly driving levers 315 crossing with spring 314 swing-around trajectories and position is corresponding are set on the pyrolysis chamber at swingle 303 two ends 1 inwall, when swingle 303 rotation, spring 314 is with swingle 303 synchronous rotaries, when spring 314 rotates to the position of driving lever 315, by driving lever 315, stopped, under the elastic force effect, the spring 314 of this end can pull all blades 316 to this end motion, when swingle 303 leaves the position of driving lever, the interception that spring 314 breaks away from driving lever 315 is returned to original position, now all blades can be withdrawn into original position by the spring 314 of the other end, when the spring 314 of the other end with swingle 303 rotations and stopped by driving lever, same all blades can be pulled to this end by it, be returned to again original position, the driving lever meeting interval at swingle 303 two ends when work corresponding spring is tackled, thereby all blades are constantly moved back and forth, can realize the activity of blade in this way, avoid crystal to be attached on blade.
In the present invention, above-mentioned driving lever 315 can only arrange at one end, also a plurality of driving levers by angular distribution can at one end be set, and realizes repeatedly stirring simultaneously.Concrete driving lever can also be arranged to manner, control driving lever by the drive unit that is arranged on the outside, pyrolysis chamber flexible, when reaching front end, driving lever is positioned on the swing-around trajectory of spring, it is non-intersect with spring when driving lever is reduced to rear end, control in this way the number of times of stirring of blade, can reduce the number of times of stirring of spring when not needing blade to move, the service life of simultaneously improving spring.
For further facilitating the movement of blade in chute, the present invention arranges ball in blade bottom or chute, by the mode of rolling, reduces the friction between blade and chute, makes blade be easier to loosening solidification and crystallization thing.
For reducing the impact of blade on flow of flue gas in tail pipe, blade of the present invention adopts the structure with through hole, and the setting of concrete through hole can be to spend arbitrarily the strand shape, as long as can make blade keep certain intensity.The above is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, although the present invention with preferred embodiment openly as above, yet not in order to limit the present invention, anyly be familiar with the technical staff of this patent within not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned prompting is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, any simple modification of above embodiment being done according to technical spirit of the present invention, equivalent variations and modification, all still belong in the present invention program's scope.
Claims (10)
1. the ash slag cleaning device of a flue gas SCR urea denitration device, being included as the rear urea of dissolving and flue gas provides the pyrolysis chamber (1) of reaction compartment, it is characterized in that, described ash slag cleaning device (3) comprises the swingle (303) that is arranged on pyrolysis chamber's inner bottom part and is arranged on the spiral vane (302) on swingle (303), be arranged on connecing brilliant mouthful (5) and being connected to the storage case (4) that connects the brilliant mouthful of outside on swingle below pyrolysis locular wall, the two end axles of described swingle (303) is fixed on the sidewall of pyrolysis chamber (3) tail pipe (2), the drive motors (301) that drives swingle (303) work is installed in the outside of pyrolysis chamber.
2. ash slag cleaning device as claimed in claim 1, is characterized in that, the described brilliant mouth (5) that connects locates to be provided with movable sealing plate (501).
3. ash slag cleaning device as claimed in claim 1, is characterized in that, described spiral vane (302) by a plurality of independently blades (316), formed and each blade (316) between be provided with interval.
4. ash slag cleaning device as claimed in claim 3, it is characterized in that, described blade (316) is for being movably arranged on swingle (303), wherein at the upper swing-around trajectory by spiral vane (302) of swingle (303), the inner large little chute (307) of opening of multistage is set, the two bottom sides of blade (316) is respectively arranged with the clamp groove (304) of clamping chute (307) dual-side, the length of blade (316) is less than the length of chute (307), blade (316) is stuck in chute (307) by clamp groove (304) and above is arranged on swingle (303), be provided with fixing hole (313) and loose slot (311) on blade (316), fix a pull bar (310) at the upper pin of fixing hole (313), the other end of pull bar (310) is movably fixed in the loose slot (311) of adjacent blades (316).
5. ash slag cleaning device as claimed in claim 4, it is characterized in that, it is the U-shaped end that described pull bar (310) is connected an end with loose slot (311), on the opening of U-shaped end, be provided with through loose slot (311) and respectively with the fixing fixed bar (310) of U-shaped dual-side.
6. ash slag cleaning device as claimed in claim 4, it is characterized in that, one end of described chute (307) is provided with the insert port (308) of inserting chute (307) for the clamp groove (304) of blade, be provided with shrouding (309) on insert port (308), described shrouding (309) is fixed on insert port (308) by axle or screw.
7. ash slag cleaning device as claimed in claim 4, it is characterized in that, the length of described blade (316) is less than the length of chute (307), top gripper edge (305) length of clamp groove (304) is greater than bottom gripper edge (306) length of clamp groove (304), and the top gripper edge (305) that blade (316) grows while being positioned at chute (a 307) end covers the chute (307) exposed.
8. ash slag cleaning device as claimed in claim 7, is characterized in that, the length of described loose slot (311) equals the length that chute (307) deducts blade (316).
9. ash slag cleaning device as claimed in claim 4, it is characterized in that, be provided with spring (314) on the termination of described swingle (303), one end of described spring (314) is connected the other end and is connected with adjacent blade (316) with swingle (303), in the swingle termination, on corresponding pyrolysis chamber's inwall, be provided with the driving lever (315) crossing with spring (314) swing-around trajectory.
10. ash slag cleaning device as claimed in claim 9, is characterized in that, in described chute (307) or the bottom of blade (316) is equipped with ball.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310398125.XA CN103464431B (en) | 2013-09-04 | 2013-09-04 | Deashing device of smoke SCR urea denitration equipment |
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| CN201310398125.XA CN103464431B (en) | 2013-09-04 | 2013-09-04 | Deashing device of smoke SCR urea denitration equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109279624A (en) * | 2018-10-23 | 2019-01-29 | 国运科技（大连）有限公司 | A kind of SCR denitration urea pyrolysis furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109279624A (en) * | 2018-10-23 | 2019-01-29 | 国运科技（大连）有限公司 | A kind of SCR denitration urea pyrolysis furnace |
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| CN103464431B (en) | 2015-05-13 |
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