CN214809829U - Ash falling treatment device and semi-dry desulfurization reactor and reaction system thereof - Google Patents
Ash falling treatment device and semi-dry desulfurization reactor and reaction system thereof Download PDFInfo
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- CN214809829U CN214809829U CN202121262799.3U CN202121262799U CN214809829U CN 214809829 U CN214809829 U CN 214809829U CN 202121262799 U CN202121262799 U CN 202121262799U CN 214809829 U CN214809829 U CN 214809829U
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Abstract
The utility model provides a grey processing apparatus falls and semidry desulfurization reactor and reaction system thereof, the grey processing apparatus that falls is used for handling the ash that falls in desulfurization reactor bottom, include: the bottom screw conveyor is arranged at the bottom of the desulfurization reactor and is used for conveying the falling ash of the reactor out; the compressed air pipe is arranged on the side wall of the bottom screw conveyor and is used for carrying out back flushing on falling ash in the screw conveyor to the reactor at set time so as to realize the reutilization of the falling ash; the number of the compressed air pipes is a plurality, and the compressed air pipes are uniformly distributed on the side walls of the two sides of the bottom spiral conveyor; and the compressed air pipe is provided with a control valve for controlling the blowing and stopping of the compressed air. The bottom ash that falls of desulfurization reactor is unloaded after solving to this application and is handled according to the waste ash, causes the extravagant problem of the complete circulation ash discharge of unreacted, reduces the energy extravagant, reduces system resistance, reduces artifical freight cost.
Description
Technical Field
The utility model belongs to the technical field of the desulfurization, concretely relates to ash handling device and semidry desulfurization reactor and reaction system thereof fall.
Background
The flue gas desulfurization scheme mainly comprises a dry method, a semi-dry method and a wet method. Dry flue gas desulfurization is mainly to remove SO in flue gas by using powdery quicklime2The method has the advantages of simple process, no problem of sewage and waste acid treatment, low energy consumption, high temperature of the flue gas after purification, contribution to exhaust diffusion of the chimney and low corrosivity; its disadvantages are low desulfurizing efficiency, large equipment, large occupied area and high requirement for operation technique. The wet flue gas desulfurization is characterized in that flue gas reacts with alkaline solution, the desulfurization reaction speed is high, the efficiency is high, and the utilization rate of a desulfurization additive is high; the disadvantage is wet flue gas removalSulfur has white smoke phenomenon, equipment is seriously corroded, and gypsum and waste water which are byproducts are difficult to treat. The semidry desulfurization is a milky desulfurizer (calcium hydroxide) prepared from quick lime or slaked lime and water, and is used for carrying out countercurrent or concurrent spraying on flue gas, and desulfurization is completed through dust removal and solid recovery.
At present, the desulfurization measure in the glass industry generally adopts a Novel Integrated Desulfurization (NID) semidry process desulfurization, two processes of dust removal and desulfurization can be completed simultaneously, and flue gas enters a reactor through a reactor connecting pipeline and reacts with an absorbent in humidifying circulating ash. Under the conditions of temperature reduction and humidification, SO in the flue gas2The flue gas after reaction carries a large amount of dry solid particles and enters a bag-type dust collector for collection and purification after desulfurization. However, after the desulfurization is carried out by the NID semi-dry method, the existing method for treating the ash at the bottom of the desulfurization reactor is to discharge the ash regularly and transport the ash to an ash storage by a manual forklift for solid waste treatment. Problems with this approach are: discharging the ash from the bottom of the desulfurization reactor and treating the ash according to the waste ash, so as to cause the waste of unreacted circulating ash; the falling ash at the bottom of the desulfurization reactor needs to be manually transported, so that the labor cost is increased; excessive ash falls from the bottom of the desulfurization reactor, the system resistance is increased, the frequency of a draught fan is increased, and energy is wasted; the amount of the waste ash is increased.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned defects or shortcomings in the prior art, the present invention aims to provide a method for manufacturing a semiconductor device
In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions:
in a first aspect, a falling ash treatment device for treating the falling ash at the bottom of a desulfurization reactor comprises: the bottom screw conveyor is arranged at the bottom of the desulfurization reactor and is used for conveying the falling ash of the reactor out; and the compressed air pipe is arranged on the side wall of the bottom screw conveyor and used for back blowing falling ash in the screw conveyor into the reactor at set time so as to realize the reutilization of the falling ash.
According to the technical scheme that this application embodiment provided, compressed air pipe's quantity is a plurality of, evenly distributed be in the lateral wall of bottom screw conveyer both sides.
According to the technical scheme that this application embodiment provided, be equipped with control flap on the compressed air pipe for the blowing and the stopping of control compressed air.
According to the technical scheme that this application embodiment provided, compressed air pipe is close to bottom screw conveyer's tip is equipped with the edge protection flip that bottom screw conveyer's direction was one-way opened, protection flip through the pivot with compressed air pipe swivelling joint.
In a second aspect, the semi-dry desulfurization reactor comprises the ash falling treatment device, wherein an opening is formed in the inner bottom of the reactor, and the inner wall of the opening is clamped with the outer wall of the ash falling treatment device.
In a third aspect, a semidry desulfurization reaction system comprises the reactor, wherein an inlet of the reactor is connected with a flue gas channel for containing flue gas, an outlet of the reactor is connected with a bag-type dust collector through an inlet pipeline, and the bag-type dust collector is connected with a chimney through an outlet pipeline; a mixer is also arranged between the reactor and the bag-type dust collector.
According to the technical scheme that this application embodiment provided, the blender includes that be located the inside stirring wheel of blender and drive stirring wheel pivoted agitator motor.
According to the technical scheme provided by the embodiment of the application, the mixer is connected with the new ash bin through the new ash pipeline.
According to the technical scheme provided by the embodiment of the application, the joint of the mixer and the reactor (3) is communicated with one end of a spray gun pipeline, and the other end of the spray gun pipeline is connected with a spray gun.
According to the technical scheme provided by the embodiment of the application, the bag-type dust collector is provided with the fluidization bin and the outlet screw conveyor in sequence in the flowing direction of the mixer.
The utility model discloses following beneficial effect has:
the reactor is a core device for semi-dry desulphurization, flue gas and circulating ash humidified by a mixer react in the reactor to achieve the aim of desulphurization, the bottom in the reactor is connected with an ash falling treatment device, accumulated ash falling from the humidified circulating ash falling to the bottom of the reactor is conveyed out of the reactor, and then the accumulated ash falling is manually transported to a waste ash warehouse by a forklift; because the device is externally connected with the compressed air pipe at the bottom inside the reactor, the compressed air valve is opened periodically to blow the bottom deposited dust by the compressed air every shift, and the blown deposited dust reacts with the flue gas in the reactor, so that the deposited dust is continuously utilized and can be continuously used without being discharged; simultaneously this application provides the desulfurization reaction system who is equipped with bottom ash handling device that falls, and the ash content of giving up reduces, not only can reduce the workman like this and unload the ash work load of transporting every day, opens the new ash use amount that can practice thrift in the new ash storehouse, avoids environmental pollution. After the ash falling at the bottom of the reactor is reduced, the resistance in the reactor of the desulfurization reaction system is reduced in time, the frequency of a draught fan does not need to be increased, the operation is stable, and the energy waste is reduced.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:
FIG. 1 is a schematic structural diagram of a desulfurization reaction system according to an embodiment of the present invention;
FIG. 2 is a schematic side view of the ash handling apparatus according to the embodiment of the present invention;
fig. 3 is a schematic top view of a bottom screw conveyor according to an embodiment of the present invention;
fig. 4 is a schematic view of a compressed air pipe structure according to an embodiment of the present invention.
Reference numerals:
1. a boiler; 11. an induced draft fan; 2. a flue gas channel; 3. a reactor; 31. an inlet; 32. an outlet; 33. an opening; 4. a falling ash treatment device; 41. a bottom screw conveyor; 42. a screw motor; 43. a compressed air pipe; 431. protecting the flip; 44. a control valve; 5. a bag-type dust collector; 51. an inlet duct; 52. an outlet conduit; 53. a fluidization bin; 54. an outlet screw conveyor; 6. a mixer; 61. a stirring wheel; 62. a stirring motor; 7. a new ash bin; 71. a new ash pipeline; 8. a spray gun; 81. a lance conduit; 9. and (4) a chimney.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Example one
A falling ash treatment device is used for treating falling ash at the bottom of a desulfurization reactor and comprises a bottom screw conveyor 41, a bottom screw conveyor and a bottom screw conveyor, wherein the bottom screw conveyor is arranged at the bottom of the desulfurization reactor 3 and is used for conveying the falling ash in the reactor 3; and the compressed air pipe 43 is arranged on the side wall of the bottom screw conveyor 41 and is used for back blowing the falling ash in the screw conveyor 41 into the reactor 3 at a set time so as to realize the reutilization of the falling ash.
Specifically, as shown in fig. 1-2, in the semi-dry desulfurization, flue gas and humidified circulating ash react inside a reactor to achieve desulfurization, but the humidified circulating ash often falls partially to the bottom of the reactor. The utility model discloses the bottom has set up ash handling device that falls in the reactor, and the ash that falls after piling up is discharged through bottom spiral delivery machine 41 and is unloaded, and artifical fork truck is poured and is transported to the waste ash storehouse. But there are a lot of incomplete circulation ashes of unreacted in the ash that falls after piling up, and the utility model discloses set up compressed air pipe 43 on bottom bolt conveyer 41, only need every shift regularly to bottom ash that falls sweep, the deposition that blows up continues the reaction in the reactor along with the flue gas for the deposition continues to utilize, so not only can practice thrift new ash, and reduce the workman and unload ash transportation work load every day, avoid environmental pollution.
In a preferred embodiment of the present invention, the number of the compressed air pipes 43 is several, and the number of the compressed air pipes is evenly distributed on the side walls of the two sides of the bottom screw conveyor 41.
Specifically, as shown in fig. 3, the compressed air pipes 43 are uniformly distributed on the side wall of the bottom screw conveyor 41, so that the falling ash falling on the bottom screw conveyor 41 is uniformly blown back into the interior of the reactor 3.
In a preferred embodiment of the present invention, a control valve 44 is disposed on the compressed air pipe 43 for controlling the blowing and stopping of the compressed air.
Specifically, as shown in fig. 3, the control valve 44 is opened periodically for each shift to control the purge of compressed air from the compressed air pipe 43 into the bottom screw conveyor.
In a preferred embodiment of the present invention, the compressed air pipe 43 is close to the end of the bottom screw conveyor 41 is provided with a protection flip 431 which is opened along the direction of the bottom screw conveyor 41 in one direction, and the protection flip 431 is connected with the compressed air pipe 43 in a rotatable manner through a rotating shaft.
Specifically, as shown in fig. 4, when the control valve 44 is opened, the compressed air in the compressed air pipe 43 opens the protective cover 431 toward the bottom screw conveyor 41, the compressed air blows into the bottom screw conveyor 41 to purge the deposited ash, the control valve 44 is closed, and the protective cover 431 is automatically closed without affecting the reaction process of the reactor.
Example two
The semi-dry desulfurization reactor comprises the ash falling treatment device 4, wherein an opening 33 is formed in the inner bottom of the reactor 3, and the inner wall of the opening 33 is clamped with the outer wall of the ash falling treatment device 4.
In particular, as shown in fig. 1, an opening 33 in the bottom of the reactor 3 facilitates the connection of the falling ash treatment device 4. Because reactor bottom set up ash handling arrangement that falls, reactor bottom falls the ash back, need not discharge and can continue to use, reduce the artifical cost of transporting of handling the ash that falls in desulfurization reactor bottom.
EXAMPLE III
A semidry desulfurization reaction system comprises the reactor 3, wherein a flue gas channel 2 for containing flue gas is connected at an inlet 31 of the reactor 3, an outlet 32 of the reactor 3 is connected with a bag-type dust collector 5 through an inlet pipeline 51, and the bag-type dust collector 5 is connected with a chimney 9 through an outlet pipeline 52;
a mixer 6 is also arranged between the reactor 3 and the bag-type dust collector 5.
Specifically, as shown in fig. 1, flue gas after reaction in the boiler 1 enters the flue gas channel 2 under the action of the induced draft fan 11 at the joint of the boiler 1 and the flue gas channel 2 and then enters the reactor 3 through the inlet 31, SO in the flue gas2Reacting with the new ash in the mixer 6 and the absorbent in the circulating ash to generate calcium sulfite and calcium sulfate to complete the desulfurization reaction, simultaneously leading the reacted flue gas to carry a large amount of dry solid particles to enter the bag-type dust remover 5 through the outlet pipeline 52 of the reactor for collection and purification, arranging an induced draft fan on the outlet pipeline 52 of the bag-type dust remover 5, and discharging the purified gas through a chimney 9; meanwhile, the reactor 3 is communicated with the mixer 6, the mixer 6 is used for mixing the new ash from the new ash bin and the circulating ash from the bag-type dust remover, and the new ash and the circulating ash are sucked into the reactor for continuous reaction by negative pressure generated during reaction of the reactor. By because desulfurization reaction system used the reactor that has ash handling arrangement that falls, in time reduced system resistance, the draught fan frequency need not increase, operates steadily, and it is extravagant to reduce the energy.
In a preferred embodiment of the present invention, the mixer 6 includes a stirring wheel 61 located inside the mixer 6 and a stirring motor 62 for driving the stirring wheel 61 to rotate.
Specifically, as shown in fig. 1, the stirring wheel 61 is driven by the stirring motor 62 to rotate, and the new ash and the circulating ash in the mixer 6 are sufficiently mixed. The new ash is completely unreacted ash containing the absorbent, and the recycled ash is completely unreacted ash.
In a preferred embodiment of the present invention, the mixer 6 is connected to the new ash bin 7 through a new ash pipe 71.
In particular, the new ash is a completely unreacted ash containing the absorbent. In the reactor reaction, new ash needs to be supplemented in time, so that the desulfurization reaction can be carried out continuously.
In a preferred embodiment of the present invention, the junction of the mixer 6 and the reactor 3 communicates with one end of a lance pipe 81, and the other end of the lance pipe 81 is connected to a lance 8.
In particular, the lance 8 contains a humidifying agent water for humidifying the circulating ash from the mixer 6 and then into the reactor 3.
In a preferred embodiment of the present invention, the bag dust collector 5 is provided with a fluidization chamber 53 and an outlet screw conveyor 54 in sequence in the circulation direction of the mixer 6.
Specifically, circulating ash from the bag-type dust collector 5 is sprayed with water in the fluidizing bin 53 for condensation and then is conveyed to the mixer by the outlet screw conveyor 54 for continuous reaction, so that the cost is saved.
Application scenarios: the utility model discloses when using, the flue gas gets into the reactor under the effect of draught fan, and the new ash also gets into the reactor after blender and humidification by new ash storehouse simultaneously, the SO of flue gas2Reacting with an absorbent in the new ash for desulfurization, feeding the reacted flue gas carrying dry solid particles into a bag-type dust collector for collection and purification, discharging the purified gas from a chimney under the action of an induced draft fan, condensing the unreacted circulating ash under the action of the bag-type dust collector and a fluidized bin, conveying the condensed circulating ash to a mixer through an outlet screw conveyor, fully mixing the circulating ash and the new ash by the mixer, humidifying a new circulating ash spray gun, and feeding the humidified circulating ash into a reactor to continuously react with the flue gas. In this process, the circulation ash of humidification is piled up in the reactor bottom under the action of gravity, the utility model discloses a control flap is regularly opened to ash handling device that falls makes compressed air get into bottom screw conveyer and will fall the ash and blow, and the ash that falls that blows up reacts in the reactor along with the flue gas, continues to utilize, practices thrift new ash, reduces work load, avoids environmental pollution, reduces the system resistance, and it is extravagant to reduce the energy.
The above description is only a preferred embodiment of the invention and is intended to illustrate the technical principles applied. It will be understood by those skilled in the art that the scope of the present invention is not limited to the specific combination of the above-mentioned features, but also covers other embodiments formed by any combination of the above-mentioned features or their equivalents without departing from the spirit of the present invention. For example, the above features and (but not limited to) technical features having similar functions disclosed in the present invention are mutually replaced to form the technical solution.
Claims (10)
1. A fallen ash treatment device for treating the fallen ash at the bottom of a desulfurization reactor is characterized by comprising:
the bottom screw conveyor (41) is arranged at the bottom of the desulfurization reactor (3) and is used for conveying the falling ash of the reactor (3) out;
and the compressed air pipe (43) is arranged on the side wall of the bottom screw conveyor (41) and is used for back blowing the falling ash in the screw conveyor (41) into the reactor (3) at a set time so as to realize the reutilization of the falling ash.
2. A dropped ash handling unit according to claim 1, c h a r a c t e r i z e d in that the number of compressed air pipes (43) is several and evenly distributed on the side walls on both sides of the bottom screw conveyor (41).
3. A dropped ash handling equipment according to claim 1, characterized in that the compressed air pipe (43) is provided with a control valve (44) for controlling the blowing and stopping of the compressed air.
4. A dropped ash handling device according to claim 3, characterized in that the end of the compressed air pipe (43) close to the bottom screw conveyor (41) is provided with a protective flap (431) which opens unidirectionally in the direction of the bottom screw conveyor (41), the protective flap (431) being rotatably connected with the compressed air pipe (43) by a rotating shaft.
5. Semi-dry desulfurization reactor, characterized in that it comprises a device (4) for treating fallen ash according to any one of claims 1 to 4, said reactor (3) being provided with an opening (33) at the bottom, the inner wall of said opening (33) being in snap-fit engagement with the outer wall of said device (4) for treating fallen ash.
6. A semi-dry desulphurization reaction system, comprising a reactor (3) according to claim 5, wherein a flue gas channel (2) for containing flue gas is connected to the inlet (31) of the reactor (3), the outlet (32) of the reactor (3) is connected with a bag-type dust collector (5) through an inlet pipeline (51), and the bag-type dust collector (5) is connected with a chimney (9) through an outlet pipeline (52);
a mixer (6) is also arranged between the reactor (3) and the bag-type dust collector (5).
7. The semi-dry desulfurization reaction system according to claim 6, wherein the mixer (6) comprises a stirring wheel (61) inside the mixer (6) and a stirring motor (62) for driving the stirring wheel (61) to rotate.
8. The semi-dry desulfurization reaction system according to claim 6, wherein the mixer (6) is connected to the new ash bin (7) through a new ash pipe (71).
9. The semi-dry desulfurization reaction system according to claim 6, wherein the junction of the mixer (6) and the reactor (3) is communicated with one end of a lance pipe (81), and the other end of the lance pipe (81) is connected with a lance (8).
10. The semi-dry desulfurization reaction system according to claim 6, wherein a fluidization chamber (53) and an outlet screw conveyor (54) are sequentially provided in the flow direction from the bag-type dust collector (5) to the mixer (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121262799.3U CN214809829U (en) | 2021-06-07 | 2021-06-07 | Ash falling treatment device and semi-dry desulfurization reactor and reaction system thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121262799.3U CN214809829U (en) | 2021-06-07 | 2021-06-07 | Ash falling treatment device and semi-dry desulfurization reactor and reaction system thereof |
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| CN214809829U true CN214809829U (en) | 2021-11-23 |
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| CN202121262799.3U Active CN214809829U (en) | 2021-06-07 | 2021-06-07 | Ash falling treatment device and semi-dry desulfurization reactor and reaction system thereof |
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- 2021-06-07 CN CN202121262799.3U patent/CN214809829U/en active Active
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