CN215196304U - Novel semi-dry type desulfurization process system - Google Patents
Novel semi-dry type desulfurization process system Download PDFInfo
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- CN215196304U CN215196304U CN202121409438.7U CN202121409438U CN215196304U CN 215196304 U CN215196304 U CN 215196304U CN 202121409438 U CN202121409438 U CN 202121409438U CN 215196304 U CN215196304 U CN 215196304U
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Abstract
The utility model discloses a novel semi-dry type desulfurization process system, which comprises a desulfurization tower system, a slaked lime powder feeding system and an ash return circulating system; the discharge hole of the slaked lime powder feeding system is communicated with the feed hole of the desulfurizing tower system; a feed port of the ash feed back circulating system is communicated with a gas outlet of the desulfurizing tower system, and a discharge port of the ash feed back circulating system is communicated with one side of the desulfurizing tower system; the slaked lime powder feeding system comprises a powder bin, an air cannon, a bin wall vibrator and a feeder; the air nozzle of the air cannon is communicated with the interior of the powder bin; the bin wall vibrator is arranged at the bottom end inside the powder bin; the feed inlet of feeder and the discharge gate intercommunication in powder storehouse, the discharge gate of feeder and the feed inlet intercommunication of desulfurizing tower system. The utility model discloses utilize the air bubble to strike the material that the knot encircles in the powder storehouse, and the material that the knot encircles is smashed under the effect of shaking of gravity and bulkhead vibrator, and air bubble, bulkhead vibrator combine to use, make the material resume flow, and then the mobility of reinforcing material.
Description
Technical Field
The utility model relates to a desulfurization technical field, more specifically relates to a novel semi-dry formula desulfurization process systems.
Background
Limestone-gypsum wet desulphurization has the advantages of high desulphurization efficiency, strong adaptability and the like, and becomes SO commonly adopted by coal-fired units2And controlling the process. The limestone-gypsum desulfurization process mostly adopts a spray tower, the dust-containing flue gas generated by burning coal is reversely contacted with slurry formed by atomizing in the tower through a desulfurization nozzle, and dust particles and SO in the flue gas2And other harmful substances can be removed by the washing action of the slurry.
The desulfurization techniques are mainly classified into dry, semi-dry and wet desulfurization techniques. The wet desulphurization technology has good desulphurization effect, but has huge investment, large water consumption, large occupied area and complex structure. The existing semi-dry desulfurization technology is to use limestone as a neutralizer, and enter a desulfurization tower together with water to perform neutralization desulfurization along the limestone. Patent CN100464825C discloses a semidry desulfurization process with double-feedback circulating fluidized bed, which has the following disadvantages: the material is easy to form arch in the desulfurizer powder bin, the flowability of the material is poor, the normal supply of the material is influenced, and the desulfurization efficiency is further influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a novel semi-dry type desulfurization process system capable of eliminating the material arching in the powder bin and enhancing the flowability of the material is provided.
The utility model discloses a solve above-mentioned technical problem through following technical scheme:
a novel semi-dry type desulfurization process system comprises a desulfurization tower system, a slaked lime powder feeding system and an ash return circulating system; the discharge hole of the slaked lime powder feeding system is communicated with the feed hole of the desulfurizing tower system; a feed port of the ash feed back circulating system is communicated with an air outlet of the desulfurizing tower system, and a discharge port of the ash feed back circulating system is communicated with one side of the desulfurizing tower system;
the slaked lime powder feeding system comprises a powder bin, an air cannon, a bin wall vibrator and a feeder; an air nozzle of the air cannon is communicated with the interior of the powder bin; the bin wall vibrator is arranged at the bottom end inside the powder bin; the feed inlet of feeder with the discharge gate intercommunication in powder storehouse, the discharge gate of feeder with the feed inlet intercommunication of desulfurizing tower system.
The utility model discloses a setting of air bubble, bulkhead vibrator utilizes the air bubble to strike the material that the knot arched in the powder storehouse, and the material that the knot arched is smashed under the effect of shaking of gravity and bulkhead vibrator, and air bubble, bulkhead vibrator combine to use, make the material resume flow, and then the mobility of reinforcing material.
Preferably, the desulfurization tower system comprises a tower body, a tower cover and a spraying device; the tower cover is fixed at the top of the tower body; the spraying device is arranged above the interior of the tower body;
the lower end of one side of the tower body is provided with a flue gas inlet; the upper end of one side of the tower body is provided with a feed inlet; a flue gas outlet is formed in the top of the tower cover; and a feed back port is arranged at the lower end of the other side of the tower body.
Preferably, the desulfurizing tower system further comprises an air flow distribution plate, and the air flow distribution plate is vertically fixed in the flue gas inlet; the vertical airflow distribution plate is arranged at the flue gas inlet of the desulfurizing tower, so that upward flue gas in the tower body is uniformly distributed, the flue gas resistance is also reduced, and the impact of the flue gas on the tower body is also reduced.
Preferably, the powder bin comprises an upper bin body and a lower bin body which are integrally formed; the upper end of the bin wall of the lower bin body is fixedly connected with the lower end of the bin wall of the upper bin body; the section of the lower bin body is of an inverted trapezoidal structure, and the bin wall vibrator is fixed on the inner wall of the lower bin body; the utility model discloses a lower storehouse body cross-section in powder storehouse becomes "down trapezoidal" structure for because the reason of gravity, make the material can flow downwards along the down slope of the lower storehouse body, improve the efficiency of unloading.
Preferably, the feeder is a rotary feeder, and the feeding amount is controlled by adjusting the rotating speed of a variable frequency screw conveyor of the feeder.
Preferably, the slaked lime powder feeding system further comprises a plurality of electric heating sheets, and the plurality of electric heating sheets are arranged on the inner walls of the upper bin body and the lower bin body.
Preferably, the slaked lime powder feeding system further comprises a feeding fan, and an air outlet of the feeding fan is communicated with the feeding port.
Preferably, the ash return circulation system comprises a bag-type dust collector, an induced draft fan, a chimney, a first ash discharging motor, a second ash discharging motor, an air conveying groove and a material returning fan; the air inlet of the bag-type dust collector is communicated with the flue gas outlet through a pipeline, and two ash hoppers are arranged at the bottom of the bag-type dust collector;
the air inlet of the induced draft fan is communicated with the air outlet of the bag-type dust collector, and the air outlet of the induced draft fan is communicated with the air inlet of the chimney;
the first ash discharging motor and the second ash discharging motor are arranged in parallel, feed inlets of the first ash discharging motor and the second ash discharging motor are respectively connected with two ash buckets of the bag-type dust remover through pipelines, and the first ash discharging motor and the second ash discharging motor are respectively connected to the air conveying groove;
the discharge hole of the air conveying groove is communicated with the feed back hole through a pipeline;
an air outlet of the material returning fan is communicated with an air inlet of the air conveying groove; the utility model discloses regard as the ash of each ash bucket of sack cleaner recirculating material, send into the tower body by the air conveyer groove after collecting and participate in desulfurization reaction to improve the desulfurizer utilization ratio.
Preferably, the air conveying groove is obliquely arranged with a high starting end and a low terminating end; through setting up air conveying groove for the state that the initiating terminal is high, the termination end is low for the ash of retrieving can be in the tower body and be recycled with the angle of slope, can avoid feed back mouth department to block up.
Preferably, the ash return circulating system further comprises a material level detector fixed on an ash hopper of the bag-type dust collector; the material level detector is arranged on the ash bucket of the bag-type dust remover, so that the ash bucket of the bag-type dust remover keeps running at a low ash level in the normal running process, and air leakage of the system and secondary flying of dust are prevented.
The working principle is as follows: before use, powdery desulfurizer materials are conveyed into a powder bin through a tank car, then a flue gas inlet of a tower body is communicated with a gas outlet of a boiler system, flue gas uniformly enters the lower part of the interior of the tower body through the flue gas inlet and a gas flow distribution plate, the flue gas flows upwards in the tower body, a spraying device is started, the spraying device wets and cools the ascending flue gas, a slaked lime powder feeding system is started simultaneously, an air cannon impacts the materials in the powder bin, the materials enter a feeder through a discharge hole at the bottom of a lower bin body under the action of gravity and the vibration of a bin wall vibrator, the rotating speed of a variable-frequency screw conveyor of the feeder is adjusted to control the feeding amount, the materials enter a feeding port, a feeding fan is started, the feeding fan blows the materials to the interior of the tower body from the feeding port, the materials fall downwards in the tower body, and are mixed and reacted with the wetted flue gas, so that the aim of desulfurization is achieved, the flue gas after the desulfurization flows to grey feed back circulation system from the exhanst gas outlet again, starts grey feed back circulation system, and the sack cleaner removes dust, and the flue gas after the dust removal is discharged from the chimney under the effect of draught fan, and the ash after the dust removal falls into the ash bucket, starts first unload grey motor with the second unloads grey motor, unloads the ash in the ash bucket to the air delivery groove on, and the ash on the return fan with the air delivery groove blows back to the tower body from the feed back mouth again and participates in with desulfurization reaction.
Compared with the prior art, the utility model has the following advantages:
1. the utility model discloses a setting of air bubble, bulkhead vibrator utilizes the air bubble to strike the material that the knot arched in the powder storehouse, and the material that the knot arched is smashed under the effect of rapping of gravity and bulkhead vibrator, and the air bubble uses with the bulkhead vibrator combines, enables the material and resumes to flow, and then strengthens the mobility of material.
2. The vertical airflow distribution plate is arranged at the flue gas inlet of the desulfurizing tower, so that upward flue gas in the tower body is uniformly distributed, the flue gas resistance is also reduced, and the impact of the flue gas on the tower body is also reduced.
3. The utility model discloses a lower storehouse body cross-section in powder storehouse becomes "down trapezoidal" structure for because the reason of gravity, make the material can flow downwards along the down slope of the lower storehouse body, improve the efficiency of unloading.
4. Through setting up air conveying groove for the state that the initiating terminal is high, the termination end is low for the ash of retrieving can be in the tower body and be recycled with the angle of slope, can avoid feed back mouth department to block up.
5. The material level detector is arranged on the ash bucket of the bag-type dust remover, so that the ash bucket of the bag-type dust remover keeps running at a low ash level in the normal running process, and air leakage of the system and secondary flying of dust are prevented.
Drawings
FIG. 1 is a schematic structural diagram of a novel semi-dry desulfurization process system of the present invention;
fig. 2 is a schematic structural diagram of a desulfurizing tower system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a slaked lime powder feeding system according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an ash feed-back circulation system according to an embodiment of the present invention.
The reference numbers illustrate:
1. a desulfurization tower system; 11. a tower body; 12. a tower cover; 13. a spraying device; 14. a flue gas inlet; 15. a feed inlet; 16. a flue gas outlet; 17. a feed back port; 18. an air flow distribution plate; 2. a slaked lime powder feeding system; 21. a powder bin; 211. an upper bin body; 212. a lower bin body; 22. an air cannon; 23. a bin wall vibrator; 24. a feeder; 25. an electrical heating sheet; 26. a feeding fan; 3. an ash feed back circulation system; 31. a bag-type dust collector; 32. an induced draft fan; 33. a chimney; 34. a first ash discharge motor; 35. a second ash discharge motor; 36. an air delivery slot; 37. a material returning fan; 38. a level detector.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example one
As shown in fig. 1, the embodiment discloses a novel semi-dry type desulfurization process system, which comprises a desulfurization tower system 1, a slaked lime powder feeding system 2 and an ash return material circulating system 3.
As shown in fig. 1 and 2, the desulfurization tower system 1 includes a tower body 11, a tower cover 12 and a spray device 13;
the tower cover 12 is fixed on the top of the tower body 11, and the bottom end of the cover wall of the tower cover 12 is welded and fixed with the top end of the tower wall of the tower body 11, and can also be integrally formed;
the spraying device 13 is arranged above the inside of the tower body 11, and the spraying device 13 of the embodiment comprises a spraying pipeline, a desulfurization slurry nozzle and a demister; the feed inlet of the spraying pipeline is communicated with external water; and a plurality of desulfurization slurry nozzles are arranged on the spraying pipeline through bolts.
As shown in fig. 2, specifically, the position of fig. 2 is used as a reference, the lower end of the left side of the tower body 11 is provided with a flue gas inlet 14, the flue gas inlet 14 of the utility model is of a pipeline structure, the right end of the flue gas inlet 14 is directly welded on the outer wall of the lower end of the left side of the tower body 11, and the right end of the flue gas inlet 14 can be connected with the outer wall of the lower end of the left side of the tower body 11 through a flange and a bolt;
as shown in fig. 2, specifically, with the orientation of fig. 2 as a reference, the upper end of the left side of the tower body 11 is provided with a charging opening 15, the charging opening 15 of the present invention is a pipeline structure, the charging opening 15 is directly welded on the outer wall of the upper end of the left side of the tower body 11, and the right end of the charging opening 15 is connected with the outer wall of the upper end of the left side of the tower body 11 through a flange and a bolt;
as shown in fig. 2, specifically, with the position of fig. 2 as a reference, the top of the tower cover 12 is provided with a flue gas outlet 16, the flue gas outlet 16 of the present invention is a pipeline structure, the lower end of the flue gas outlet 16 is directly welded on the outer wall of the top of the tower cover 12, and the lower end of the flue gas outlet 16 can also be connected with the outer wall of the top of the tower cover 12 through a flange and a bolt;
as shown in fig. 2, specifically use the position of fig. 2 as the reference, tower body 11 right side lower extreme is provided with feed back hole 17, the utility model discloses a feed back hole 17 is pipeline structure, and the lower extreme beading of feed back hole 17 is on the right side lower extreme outer wall of tower body 11, and the lower extreme of feed back hole 17 also can be connected through the ring flange and be equipped with the bolt with the right side lower extreme outer wall of tower body 11.
As shown in fig. 1 and 3, the slaked lime powder feeding system 2 comprises a powder bin 21, an air cannon 22, a bin wall vibrator 23, a feeder 24, an electric heating sheet 25 and a feeding fan 26;
as shown in fig. 3, the powder bin 21 includes an upper bin body 211 and a lower bin body 212 which are connected together and can also be integrally formed; the upper end of the bin wall of the lower bin body 212 is welded and fixed with the lower end of the bin wall of the upper bin body 211, and can also be integrally formed; the lower cartridge body 212 is in an inverted trapezoidal cross-section.
As shown in fig. 3, the air cannon 22 of the present embodiment is mounted on the outer wall of the lower bin body 212 by using a mounting bracket and matching with bolts or screws, and the air nozzle of the air cannon 22 is communicated with the interior of the powder bin 21 through a pipeline, the outer wall of the air nozzle of the air cannon 22 is directly welded on the outer wall of the lower bin body 212, and the outer wall of the air nozzle of the air cannon 22 can be fixedly connected on the outer wall of the lower bin body 212 through a flange and matching with bolts.
As shown in fig. 3, the base of the bin wall vibrator 23 of the present embodiment may be directly welded on the inner sidewall of the lower bin body 212, or may be fixedly connected with the inner sidewall of the lower bin body 212 by bolts or screws.
As shown in fig. 3, a discharge hole is further formed in the bottom wall of the lower bin body 212, the feed hole of the feeder 24 is communicated with the discharge hole in the bottom of the lower bin body 212 through a pipeline, the upper end of the pipeline is welded and fixed to the outer wall of the discharge hole in the bottom of the lower bin body 212, or fixed in a manner of bolt or screw connection, and the lower end of the pipeline is welded and fixed to the outer wall of the feed hole of the feeder 24, or fixed in a manner of bolt or screw connection; the discharge hole of the feeder 24 is fixedly connected with the charging hole 15 through a three-way valve and matched with bolts or screws; the feeder 24 of the present embodiment is a prior art rotary feeder.
The electric heating plate 25 is mounted on the inner walls of the upper bin body 211 and the lower bin body 212 by adopting a bracket and matching with bolts or screws.
As shown in fig. 3, the air outlet of the feeding fan 26 is welded to the other end of the feeding port 15, and the air outlet of the feeding fan 26 may also be an existing flange and fixed by bolts or screws.
As shown in fig. 1 and 4, the ash-returning circulation system 3 includes a bag-type dust collector 31, an induced draft fan 32, a chimney 33, a first ash-discharging motor 34, a second ash-discharging motor 35, an air conveying trough 36, and a material-returning fan 37;
as shown in fig. 4, the bag-type dust collector 31 of this embodiment is fixed on the ground by using a bag support frame, and the bag-type dust collector 31 of this embodiment has two ash hoppers.
As shown in fig. 4, an air inlet of the induced draft fan 32 is connected with an air outlet of the bag-type dust collector 31 through a pipeline, one end of the pipeline is welded and fixed with the air outlet of the bag-type dust collector 31, or an existing flange plate and a bolt or screw are matched for fixed connection, and the other end of the pipeline is welded and fixed with the air inlet of the induced draft fan 32, or the existing flange plate and a bolt or screw are matched for fixed connection; the air outlet of the induced draft fan 32 is fixedly connected with the air inlet of the chimney 33 through a pipeline.
As shown in fig. 4, the first ash discharging motor 34 and the second ash discharging motor 35 are disposed in parallel, and since the first ash discharging motor 34 and the second ash discharging motor 35 have the same structure, the structure of the first ash discharging motor 34 will be described, and the structure of the second ash discharging motor 35 refers to the first ash discharging motor 34; the feeding hole of the first ash discharging motor 34 is connected with the ash bucket of the bag-type dust collector 31 through a pipeline, one end of the pipeline is fixedly welded with the ash bucket of the bag-type dust collector 31, the existing flange plate can also be adopted and matched with a bolt or a screw for fixed connection, the other end of the pipeline is fixedly welded with the feeding hole of the first ash discharging motor 34, and the existing flange plate can also be adopted and matched with a bolt or a screw for fixed connection; the discharge port of the first ash discharging motor 34 is connected with the feed port of the air conveying groove 36 through a pipeline, one end of the pipeline is welded and fixed with the discharge port of the first ash discharging motor 34, the existing flange plate can be adopted and matched with a bolt or a screw for fixed connection, the other end of the pipeline is welded and fixed with the feed port of the air conveying groove 36, and the existing flange plate can be adopted and matched with a bolt or a screw for fixed connection.
As shown in fig. 4, the air outlet of the material returning blower 37 is welded and fixed to the port of the air conveying groove 36, or may be fixed and connected to the existing flange by bolts or screws.
The working principle of the embodiment is as follows: the utility model provides a novel semi-dry type desulfurization process system, firstly, desulfurizer powdery material is conveyed into a powder bin 21 through a tank car before use, then a flue gas inlet 14 of a tower body 11 is communicated with a gas outlet of a boiler system, flue gas enters the lower part inside the tower body 11 through the flue gas inlet 14, the flue gas flows upwards in the tower body 11, a spray device 13 is started, the spray device 13 wets and cools the flue gas going upwards, and simultaneously a slaked lime powder feeding system 2 is started, an air cannon 22 impacts the material in the powder bin 21, the material enters a feeder 24 through a discharge port at the bottom of a lower bin body 212 under the vibration action of gravity and a bin wall vibrator 23, the rotating speed of a variable frequency screw conveyor of the feeder 24 is adjusted to control the feeding amount, the material enters a feed opening 15, a feed fan 26 is started, the feed fan 26 blows the material from the feed opening 15 to the inside the tower body 11, the material drops downwards in the tower body 11, the material is mixed with the wet flue gas and reacts, so that the aim of desulfurization is achieved, the desulfurized flue gas flows out of the flue gas outlet 16 to the ash return circulating system 3, the ash return circulating system 3 is started, the bag-type dust collector 31 removes dust, the dedusted flue gas is discharged from the chimney 33 under the action of the induced draft fan 32, the dedusted ash falls into the ash bucket, the first ash unloading motor 34 and the second ash unloading motor 35 are started, the ash in the ash bucket is unloaded to the air conveying groove 36, and the ash on the air conveying groove 36 is blown back to the tower body 11 from the return port 17 by the material returning fan 37 to participate in desulfurization reaction.
Compared with the prior art, the utility model has the following advantages: one of the two, the utility model discloses a setting of air bubble 22, bulkhead vibrator 23 utilizes air bubble 22 to strike the material that the knot arched in the powder storehouse 21, and the material that the knot arched is smashed under the effect of rapping of gravity and bulkhead vibrator 23, and air bubble 22 uses with bulkhead vibrator 23 combines, enables the material and resumes to flow, and then strengthens the mobility of material. Secondly, the utility model discloses a lower storehouse body 212 cross-section of powder storehouse 21 becomes "down trapezoidal" structure for the material can flow downwards along the down slope of the lower storehouse body 212 because of the reason of gravity, improves the efficiency of unloading. Thirdly, the air conveying groove 36 is set to be in a state that the starting end is high and the ending end is low, so that the recovered ash can return to the tower body 11 at an inclined angle and be reused, and the blockage at the material return port 17 can be avoided.
Preferably, the air conveying grooves 36 of the present embodiment are inclined with a high starting end and a low terminating end; by setting the air supply grooves 36 in a state where the starting end is high and the terminating end is low, the recovered ash can be returned into the tower body 11 at an inclined angle and reused, and clogging at the return port 17 can be avoided.
Example two
The present embodiment differs from the above embodiments in that: as shown in fig. 1 and fig. 2, the desulfurizing tower system 1 of the present embodiment further includes an airflow distribution plate 18, the airflow distribution plate 18 is vertically disposed in the flue gas inlet 14, the airflow distribution plate 18 of the present embodiment is a circular plate structure, and a circular circumferential wall of the airflow distribution plate 18 is welded and fixed with an inner wall of the flue gas inlet 14, or may be fixed by a bolt or a screw.
The vertical airflow distribution plate 18 is arranged at the flue gas inlet 14 of the desulfurizing tower, so that upward flue gas in the tower body 11 can be uniformly distributed, the flue gas resistance is also reduced, and the impact of the flue gas on the tower body 11 is also reduced.
EXAMPLE III
The present embodiment differs from the above embodiments in that: as shown in fig. 4, the ash feed-back circulation system 3 of the present embodiment further includes a material level detector 38 mounted on the ash hopper of the bag-type dust collector 31;
by arranging the material level detector 38 on the ash bucket of the bag-type dust remover 31, the ash bucket of the bag-type dust remover 31 keeps running at a low ash level in the normal running process so as to prevent air leakage of the system and secondary flying of dust.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. A novel semi-dry type desulfurization process system is characterized in that: comprises a desulfurizing tower system, a slaked lime powder feeding system and an ash return material circulating system; the discharge hole of the slaked lime powder feeding system is communicated with the feed hole of the desulfurizing tower system; a feed port of the ash feed back circulating system is communicated with an air outlet of the desulfurizing tower system, and a discharge port of the ash feed back circulating system is communicated with one side of the desulfurizing tower system;
the slaked lime powder feeding system comprises a powder bin, an air cannon, a bin wall vibrator and a feeder; an air nozzle of the air cannon is communicated with the interior of the powder bin; the bin wall vibrator is arranged at the bottom end inside the powder bin; the feed inlet of feeder with the discharge gate intercommunication in powder storehouse, the discharge gate of feeder with the feed inlet intercommunication of desulfurizing tower system.
2. The novel semi-dry desulfurization process system according to claim 1, wherein: the desulfurizing tower system comprises a tower body, a tower cover and a spraying device; the tower cover is fixed at the top of the tower body; the spraying device is arranged above the interior of the tower body;
the lower end of one side of the tower body is provided with a flue gas inlet; the upper end of one side of the tower body is provided with a feed inlet; a flue gas outlet is formed in the top of the tower cover; and a feed back port is arranged at the lower end of the other side of the tower body.
3. The novel semi-dry desulfurization process system according to claim 2, wherein: the desulfurizing tower system also comprises an air flow distribution plate which is vertically fixed in the flue gas inlet.
4. The novel semi-dry desulfurization process system according to claim 2, wherein: the powder bin comprises an upper bin body and a lower bin body which are integrally formed; the upper end of the bin wall of the lower bin body is fixedly connected with the lower end of the bin wall of the upper bin body; the section of the lower bin body is of an inverted trapezoid structure, and the bin wall vibrator is fixed on the inner wall of the lower bin body.
5. The novel semi-dry desulfurization process system according to claim 1, wherein: the feeder is a rotary feeder.
6. The novel semi-dry desulfurization process system according to claim 4, wherein: the slaked lime powder feeding system further comprises a plurality of electric heating sheets, and the electric heating sheets are arranged on the inner walls of the upper bin body and the lower bin body.
7. The novel semi-dry desulfurization process system according to claim 4, wherein: the slaked lime powder feeding system further comprises a feeding fan, and an air outlet of the feeding fan is communicated with the feeding port.
8. The novel semi-dry desulfurization process system according to claim 2, wherein: the ash return circulating system comprises a bag-type dust collector, an induced draft fan, a chimney, a first ash discharging motor, a second ash discharging motor, an air conveying groove and a return fan; the air inlet of the bag-type dust collector is communicated with the flue gas outlet through a pipeline, and two ash hoppers are arranged at the bottom of the bag-type dust collector;
the air inlet of the induced draft fan is communicated with the air outlet of the bag-type dust collector, and the air outlet of the induced draft fan is communicated with the air inlet of the chimney;
the first ash discharging motor and the second ash discharging motor are arranged in parallel, feed inlets of the first ash discharging motor and the second ash discharging motor are respectively connected with two ash buckets of the bag-type dust remover through pipelines, and the first ash discharging motor and the second ash discharging motor are respectively connected to the air conveying groove;
the discharge hole of the air conveying groove is communicated with the feed back hole through a pipeline;
and the air outlet of the material returning fan is communicated with the air inlet of the air conveying groove.
9. The novel semi-dry desulfurization process system according to claim 8, wherein: the air conveying groove is obliquely arranged with a high starting end and a low terminating end.
10. The novel semi-dry desulfurization process system according to claim 8, wherein: the ash feed back circulating system also comprises a material level detector fixed on an ash hopper of the bag-type dust collector.
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| CN202121409438.7U CN215196304U (en) | 2021-06-23 | 2021-06-23 | Novel semi-dry type desulfurization process system |
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| CN202121409438.7U CN215196304U (en) | 2021-06-23 | 2021-06-23 | Novel semi-dry type desulfurization process system |
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2021
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