CN113750776A - Half-dry type deacidification dust removal integrated device - Google Patents
Half-dry type deacidification dust removal integrated device Download PDFInfo
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- CN113750776A CN113750776A CN202111115784.9A CN202111115784A CN113750776A CN 113750776 A CN113750776 A CN 113750776A CN 202111115784 A CN202111115784 A CN 202111115784A CN 113750776 A CN113750776 A CN 113750776A
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/81—Solid phase processes
- B01D53/83—Solid phase processes with moving reactants
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/02—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising gravity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/38—Removing components of undefined structure
- B01D53/40—Acidic components
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/96—Regeneration, reactivation or recycling of reactants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D2258/0283—Flue gases
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Abstract
The invention provides a semi-dry type deacidification and dust removal integrated device, relates to the technical field of flue gas deacidification and dust removal, and solves the technical problem of low utilization rate of deacidification powder in the prior art. The semi-dry type deacidification and dust removal integrated device comprises a deacidification device and a dust removal device, wherein the deacidification device comprises a deacidification device body, an inlet part is arranged on the side edge of the deacidification device body, the deacidification device body sequentially comprises a material box, a lifting part and a synergistic part from bottom to top, and the dust removal device is communicated with the synergistic part; the synergistic part comprises a shell and an outer arc plate, the outer arc plate and the shell form a synergistic chamber with a circular arc arch structure, a Tesla primary vortex plate and a plurality of guide plates are arranged in the synergistic chamber, the Tesla primary vortex plate and the guide plates are both of an arc structure, the Tesla primary vortex plate is arranged at the inlet end of the synergistic part, and the guide plates are distributed in parallel and are all arranged opposite to the Tesla primary vortex plate. The invention is used for providing a semi-dry type deacidification and dust removal integrated device with high deacidification powder absorption utilization rate.
Description
Technical Field
The invention relates to the technical field of flue gas deacidification and dust removal, in particular to a semi-dry type deacidification and dust removal integrated device.
Background
The semi-dry deacidification process is a comprehensive process integrating dust removal and deacidification, is developed by German company in the end of the 80 th 20 th century, is a deacidification method between a dry process and a wet process, overcomes the defects of the dry process and the wet process, and simultaneously has the characteristics of self.
But the disadvantages of the semi-dry deacidification technology applied at present are also obvious:
1. the deacidification powder has low utilization rate and quick failure. The deacidification powder is mixed with the flue gas in a feeding system to react, a solidified shell is formed after the surface reaction of the deacidification powder particles, the internal substances are difficult to continue to participate in the reaction, the deacidification powder is quick in failure, and the utilization rate of the deacidification powder is far lower than that of a wet process.
2. The equipment is easy to be scaled and blocked. The semi-dry deacidification process applied in the current industry has the same and different forms and principles, and all the deacidification powder is put into a reactor in a slurry or dry powder state, the deacidification powder reacts with acid compounds in smoke, and liquid water is changed into gaseous water. The amounts of deacidification powder, water and air volume can not be controlled in a balanced manner, stable operation of each parameter of the system in a certain fluctuation range is difficult to ensure, the water spraying and adding amount, the flue gas amount and the flue gas temperature in the reactor can not be effectively regulated and controlled in real time in the prior art, and the problems of insufficient water volume, reduction of desulfurization efficiency and scaling and blockage in the reactor with excessive water volume often occur.
3. The pressure drop of the system is high. The prior art establishes a suspended gas layer by utilizing the Venturi effect, and a throat structure is arranged in a reactor to improve the air speed of a material in the reactor.
4. The anti-smoke fluctuation ability is poor, and the suspended gas layer is easy to lose efficacy. In order to fluidize deacidification powder in a reactor, a suspension gas layer needs to be established in the reactor in the prior art, when the system has large flow fluctuation or the water spraying amount in the reactor is too much, the gas flow cannot support the material, the suspension state cannot be maintained, the suspension gas layer fails, the material in the reactor is completely accumulated, and the system needs to be stopped for emergency treatment.
5. The working condition requirement is high, and the operation difficulty is high. The prior art has strict requirements on the inlet air temperature, the humidity in a bed and the reaction intermediate temperature of a system, a series of problems can occur when the moisture content of raw materials and the reaction temperature are not controlled properly, the requirements on working conditions are very high, the working conditions are basically nonstandard designs of one working condition corresponding to one set of system, and the modular design of different working conditions is difficult to realize.
The applicant has found that the prior art has at least the following technical problems: the utilization rate of deacidification powder in the semi-dry deacidification process is low.
Disclosure of Invention
The invention aims to provide a semi-dry type deacidification and dedusting integrated device to solve the technical problem of low utilization rate of deacidification powder in the prior art. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a semi-dry type deacidification and dust removal integrated device, which comprises a deacidification device and a dust removal device, wherein:
the deacidification device comprises a deacidification device body, an inlet part is arranged on the side edge of the deacidification device body, the deacidification device body sequentially comprises a material box, a lifting part and a synergistic part from bottom to top, and the dust removal device is arranged at the outlet end of the synergistic part and communicated with the synergistic part;
increase portion includes shell, outer arc board with the shell forms the increase room of circular arc domes the indoor vortex plate and a plurality of guide plate of once being provided with tesla of increasing efficiency, the vortex plate is once for tesla the guide plate is the arc structure, the vortex plate sets up once for tesla the entrance point of increase portion, and is a plurality of the guide plate distributes side by side and all with the vortex plate is once for tesla sets up relatively, and the flue gas is followed entrance part gets into deacidification device is originally internal, passes through from bottom to top promote portion with increase portion, the material that the reaction is comparatively abundant follows under the effect of centrifugal force outer arc board is peeled off from the air current, and the insufficient material of reaction is in increase is indoor circling round and is increased.
Furthermore, a tesla secondary vortex plate and a material homogenizing plate are arranged in the synergy chamber, the tesla secondary vortex plate is arranged below the guide plates, and the material homogenizing plate is arranged at the outlet end of the synergy part.
Further, dust collector includes dust remover funnel, dust remover body and dust remover air-purifying chamber from supreme down in proper order dust remover funnel bottom is provided with the humidification broken wall machine, the export of humidification broken wall machine with it connects to enter the portion.
Further, the income oral area the workbin and promote the whole J style of calligraphy structure that becomes of portion, the income oral area the workbin promote the portion and increase the whole G style of calligraphy structure that is elongated that is of portion.
Further, a valve and a mixer are arranged at the inlet part.
Further, the workbin is V style of calligraphy structure.
Furthermore, a feed box ejector and a Roots blower are connected to the feed box, and the Roots blower outputs hot air.
Further, be connected with former feed bin on the deacidification device body, the deacidification powder setting is in the former feed bin, the deacidification powder in former feed bin is carried to by storehouse sprayer in the deacidification device body.
Further, the moving distance of the flue gas in the deacidification device is 20-37 m.
Furthermore, the dust collector is provided with two sets, two sets of dust collector all with increase the portion exit end and be connected, and two sets of dust collector sets up respectively the both sides of portion that increases.
The invention has the beneficial effects that: according to the semi-dry type deacidification and dedusting integrated device provided by the invention, flue gas enters the deacidification device body from the inlet part, deacidification powder enters the deacidification device body from the raw material bin under the conveying of the bin lower ejector, so that the flue gas and the deacidification powder are subjected to chemical reaction, and then the flue gas and the deacidification powder sequentially pass through the lifting part and the synergistic part from bottom to top to fully react; after the reaction is finished, the waste gas is discharged from the synergy part to the dust removal device for sedimentation, and the acid waste gas and the particulate matters in the industrial waste gas are reduced through the deacidification and dust removal processes, so that the environmental pollution is reduced; the efficiency-increasing part is internally provided with an efficiency-increasing chamber with an arc arch structure, the efficiency-increasing chamber is internally provided with a Tesla primary vortex plate and a plurality of guide plates, and the principle of a Tesla valve is utilized to realize two processes of efficiency increase and stripping of deacidified powder, specifically, the stripping process: the substances which are relatively fully reacted are stripped from the airflow at the outer edge of the synergistic part under the action of centrifugal force; the synergy process comprises the following steps: substances which do not react sufficiently are subjected to rotary synergism in a Tesla synergism part by utilizing the principle of a Tesla valve, so that the retention time of deacidification powder is prolonged, and the reaction is promoted to be more sufficient. The Tesla primary vortex plate and the plurality of guide plates can play a role in guiding and reducing resistance on one hand, and on the other hand, the end parts of the Tesla primary vortex plate and the plurality of guide plates can damage a solidified shell of the deacidification powder which is reacted, so that the part which does not participate in the reaction is exposed, and the utilization rate of the deacidification powder is improved. In addition, the method can also play a role in prolonging the reaction time, improving the circulation multiplying power and improving the reaction effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a PID diagram of the invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic view of the deacidification apparatus of the present invention;
FIG. 4 is a schematic view of the structure of the effect-enhancing portion of the present invention;
fig. 5 is a sectional view of the effect-enhancing portion of the present invention.
FIG. 1, a support frame; 2. a deacidification device; 3. a dust removal device; 4. humidifying and wall breaking machine; 5. a mixer; 6. a discharger; 21. a deacidification device body; 22. an inlet portion; 23. a material box; 24. a lifting portion; 25. A synergy portion; 26. a bin ejector; 27. a Roots blower; 31. a dust collector hopper; 32. a dust collector body; 33. a dust collector air purifying chamber; 251. a housing; 252. an outer arc plate; 253. a Tesla primary vortex plate; 254. A first baffle; 255. a second baffle; 256. a material homogenizing plate; 257. tesla secondary vortex plates.
Detailed Description
The contents of the present invention and the differences between the present invention and the prior art can be understood with reference to fig. 1 to 5 and the text. The invention will now be described in further detail, including the preferred embodiments, with reference to the accompanying drawings, in which some alternative embodiments of the invention are shown. It should be noted that: any technical features and any technical solutions in the present embodiment are one or more of various optional technical features or optional technical solutions, and for the sake of brevity, this document cannot exhaustively enumerate all the alternative technical features and alternative technical solutions of the present invention, and is also not convenient for each embodiment of the technical features to emphasize it as one of various optional embodiments, so those skilled in the art should know that: any technical means provided by the invention can be replaced or any two or more technical means or technical characteristics provided by the invention can be combined with each other to obtain a new technical scheme. Any technical features and any technical solutions in the present embodiment do not limit the scope of the present invention, and the scope of the present invention should include any alternative technical solutions that can be conceived by those skilled in the art without inventive efforts and new technical solutions that can be obtained by those skilled in the art by combining any two or more technical means or technical features provided by the present invention with each other.
In the description of the present invention, it is to be noted that "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing and simplifying the description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.
The invention provides a semi-dry type deacidification and dust removal integrated device with high deacidification powder absorption utilization rate.
The technical solution provided by the present invention is explained in more detail with reference to fig. 1 to 5.
The invention provides a semi-dry type deacidification and dust removal integrated device, which comprises a deacidification device and a dust removal device, wherein:
the deacidification device comprises a deacidification device body, an inlet part is arranged on the side edge of the deacidification device body, the deacidification device body sequentially comprises a material box, a lifting part and a synergistic part from bottom to top, and the dust removal device is arranged at the outlet end of the synergistic part and communicated with the synergistic part;
increase portion includes shell, outer arc board with the shell forms the increase room of circular arc domes the indoor vortex plate and a plurality of guide plate of once being provided with tesla of increasing efficiency, the vortex plate is once for tesla the guide plate is the arc structure, the vortex plate sets up once for tesla the entrance point of increase portion, and is a plurality of the guide plate distributes side by side and all with the vortex plate is once for tesla sets up relatively, and the flue gas is followed entrance part gets into deacidification device is originally internal, passes through from bottom to top promote portion with increase portion, the material that the reaction is comparatively abundant follows under the effect of centrifugal force outer arc board is peeled off from the air current, and the insufficient material of reaction is in increase is indoor circling round and is increased.
According to the semi-dry type deacidification and dedusting integrated device provided by the invention, flue gas enters the deacidification device body from the inlet part, deacidification powder enters the deacidification device body from the raw material bin under the conveying of the bin lower ejector, so that the flue gas and the deacidification powder are subjected to chemical reaction, and then the flue gas and the deacidification powder sequentially pass through the lifting part and the synergistic part from bottom to top to fully react; after the reaction is finished, the waste gas is discharged from the synergy part to the dust removal device for sedimentation, and the acid waste gas and the particulate matters in the industrial waste gas are reduced through the deacidification and dust removal processes, so that the environmental pollution is reduced; the efficiency-increasing part is internally provided with an efficiency-increasing chamber with an arc arch structure, the efficiency-increasing chamber is internally provided with a Tesla primary vortex plate and a plurality of guide plates, and the principle of a Tesla valve is utilized to realize two processes of efficiency increase and stripping of deacidified powder, specifically, the stripping process: the substances which are relatively fully reacted are stripped from the airflow at the outer edge of the synergistic part under the action of centrifugal force; the synergy process comprises the following steps: substances which do not react sufficiently are subjected to rotary synergism in a Tesla synergism part by utilizing the principle of a Tesla valve, so that the retention time of deacidification powder is prolonged, and the reaction is promoted to be more sufficient. The Tesla primary vortex plate and the plurality of guide plates can play a role in guiding and reducing resistance on one hand, and on the other hand, the end parts of the Tesla primary vortex plate and the plurality of guide plates can damage a solidified shell of the deacidification powder which is reacted, so that the part which does not participate in the reaction is exposed, and the utilization rate of the deacidification powder is improved. In addition, the method can also play a role in prolonging the reaction time, improving the circulation multiplying power and improving the reaction effect.
As an optional implementation mode, a tesla secondary vortex plate and a material homogenizing plate are further arranged in the synergy chamber, the tesla secondary vortex plate is arranged below the plurality of guide plates, and the material homogenizing plate is arranged at the outlet end of the synergy portion.
The Tesla secondary vortex plate and the refining plate can play a role in prolonging the reaction time, improving the circulation multiplying power and improving the reaction effect.
As optional implementation mode, dust collector includes dust remover funnel, dust remover body and dust remover air-purifying chamber from supreme down in proper order dust remover funnel bottom is provided with the humidification broken wall machine, the export of humidification broken wall machine with enter the portion and be connected.
The deacidification powder discharged from the synergism part enters a dust removal device for sedimentation, the deacidification powder entering the dust removal device for sedimentation is discharged through a dust remover funnel, enters a humidifying and wall breaking machine for adding water, stirring and wall breaking, and is put into the deacidification device after the effectiveness of the deacidification powder is improved, so that the deacidification powder is an 'synergism primary loop'.
As an alternative embodiment, a valve, a mixer is provided at the inlet portion. The inlet part is provided with a valve to realize the operation or switching of a plurality of modules, and the operation of other modules is not influenced by the shutdown maintenance of one module. The mixer is arranged to rapidly mix the materials and the flue gas, and can also knock off the reacted deacidification powder to solidify the shell, so that substances which do not participate in the reaction are exposed, and the effectiveness of the absorbent is improved.
As an alternative embodiment, the inlet portion, the hopper, and the lifting portion are integrally formed in a J-shaped configuration, and the inlet portion, the hopper, the lifting portion, and the efficiency-increasing portion are integrally formed in an elongated G-shaped configuration.
The entering part the workbin and promote the whole J style of calligraphy structure that becomes of portion, add acid powder material after the broken wall of water alone and join from deacidification device entering part, with entry air current mixture, J font structure can let the less acid powder material of mesh number in getting into deacidification device separate out and get into deacidification device workbin, and the less acid powder material of mesh number in the workbin is from the unloading of workbin bottom. The entering part, the workbin, the lifting part, the increase portion of deacidification device are combined together and are wholly the G font of lengthening, and this kind of shape has prolonged the time that the air current passes through deacidification device in limited space, and it is long when increasing the reaction, reduces deacidification device's height, and the structure is compacter.
As an optional embodiment, the bin is in a V-shaped structure. The upper opening of the material box is wide, which is beneficial to the air flow to pass through, reduces the system resistance and reduces the power consumption, the lower opening is gradually narrowed, which is beneficial to the collection of the separated deacidification powder, and the materials are discharged through the ash discharging device in a centralized way or a hot air secondary loop is carried out.
In an optional embodiment, a feed box ejector and a roots blower are connected to the feed box, and the roots blower outputs hot air. The deacidification powder with smaller mesh number in the deacidification device is separated out and enters the material box, the deacidification powder with smaller mesh number in the material box is discharged from the bottom of the material box, and is conveyed to the upper part of the lifting part by a Roots blower and a material box ejector by adopting a concentrated phase ash conveying method to continuously participate in reaction. The air outlet of the Roots blower is hot air, and hot air circulation enables hotter air to improve the temperature of materials in the process of mixing and conveying the materials, so that the reaction in the deacidification device is promoted.
In an alternative embodiment, a raw material bin is connected to the deacidification device body, deacidification powder is arranged in the raw material bin, and deacidification powder in the raw material bin is conveyed into the deacidification device body by a bin lower ejector.
As an alternative embodiment, the travel of the fumes inside the deacidification device is between 20 and 37 m.
As an optional implementation manner, two sets of dust removing devices are provided, both the two sets of dust removing devices are connected with the outlet end of the synergistic portion, and the two sets of dust removing devices are respectively arranged on two sides of the synergistic portion.
Dust collector is provided with two sets ofly, and is located increase portion both sides respectively, and dust collector constitutes overall structure with deacidification device, compact structure, save space, has realized the transportation and the reuse of deacidification material between dust collector and deacidification device simultaneously.
Example 1:
the invention provides a semi-dry type deacidification and dust removal integrated device, which comprises a supporting frame 1, wherein a deacidification device 2 and a dust removal device 3 are arranged on the supporting frame 1, wherein:
the deacidification device 2 comprises a deacidification device body 21, an inlet part 22 is arranged on the side edge of the deacidification device body 21, a raw material bin is connected to the deacidification device body 21, deacidification powder is arranged in the raw material bin, and the deacidification powder in the raw material bin is conveyed into the deacidification device body 21 through a bin lower ejector; the deacidification device body 21 sequentially comprises a feed box 23, a lifting part 24 and a synergy part 25 from bottom to top, wherein the feed box 23, the lifting part 24 and the synergy part 25 are communicated; the dust removing devices 3 are provided with two groups, the two groups of dust removing devices 3 are connected with the outlet end of the synergy portion 25, and the two groups of dust removing devices 3 are respectively arranged on two sides of the synergy portion 25.
Flue gas enters the deacidification device body 21 from the inlet part 22, deacidification powder enters the deacidification device body 21 from a raw material bin under the conveying of the bin lower ejector, so that the flue gas and the deacidification powder are subjected to chemical reaction, and then the flue gas and the deacidification powder sequentially pass through the lifting part 24 and the synergistic part 25 from bottom to top to fully react; after the reaction is finished, the reaction product is discharged to the dust removal device 3 from the synergy part 25, and the deacidification and dust removal processes are performed, so that the emission of acidic waste gas and particulate matters in industrial waste gas is reduced, and the environmental pollution is reduced.
It should be noted that, in the semi-dry deacidification and dust removal integrated device provided by the present invention, the synergy section 25 includes a housing 251 and an outer arc plate 252, the outer arc plate 252 and the housing 251 form a synergy chamber with an arc-shaped structure, a Tesla primary vortex plate 253, a first guide plate 254, a second guide plate 255, a refining plate 256 and a Tesla secondary vortex plate 257 are arranged in the synergy chamber, the tesla primary vortex plate 253, the first baffle 254 and the second baffle 255 are all arc-shaped structures, the tesla primary vortex plate 253 is arranged at the inlet end of the synergy part 25, the first guide plate 254 and the second guide plate 255 are distributed in parallel and are arranged opposite to the tesla primary vortex plate 253, the tesla secondary vortex plate 257 is disposed below the first guide plate 254 and the second guide plate 255, and the homogenizing plate 256 is disposed at the outlet end of the synergy portion 25.
The structure setting of above-mentioned increase portion has adopted the principle of tesla valve, is provided with the primary vortex board 253 of tesla, first guide plate 254, second guide plate 255, refining plate 256 and the secondary vortex board 257 of tesla, after flue gas and deacidification powder take place the chemical reaction, the less powdery absorbent of mesh of production sinks to the workbin, gets into increase portion 25 after the many powdery absorbent of mesh mixes with acid-containing gas air current and increases efficiency and peel off "two processes", the peeling process: the substances which are fully reacted are stripped from the airflow at the outer edge of the upper part of the synergy part 25 under the action of centrifugal force and are discharged from the outlet of the synergy part 25; the synergy process comprises the following steps: the insufficiently reacted substances are swirled in the synergistic portion 25 to increase the reaction time and promote the reaction more sufficiently. Meanwhile, the Tesla primary vortex plate 253, the first guide plate 254, the second guide plate 255, the refining plate 256 and the Tesla secondary vortex plate 257 can play a role in guiding and reducing resistance on one hand, and on the other hand, the end parts of the Tesla primary vortex plate, the refining plate and the Tesla secondary vortex plate can damage a curing meter shell with reacted deacidification powder, so that parts which do not participate in reaction are exposed, and the utilization rate of the deacidification powder is improved. In addition, the method can also play a role in prolonging the reaction time, improving the circulation multiplying power and improving the reaction effect.
Dust collector 3 is from supreme dust remover funnel 31, dust remover body 32 and the dust remover air-purifying chamber 33 of including in proper order down dust remover funnel 31 bottom is provided with tripper 6, and 6 exports of tripper are connected with humidification broken wall machine 4, the export of humidification broken wall machine 4 with it connects to intake portion 22, humidification broken wall machine 4 mainly comprises water pump, atomizing device and screw propulsion, makes the entering after the humidification premixing of absorbent intake portion 22. A valve, a mixer 5, is also provided at the inlet portion 22.
The deacidification powder returned from the deduster funnel 31 and returned to the inlet part 22 is subjected to water adding wall breaking outside the deacidification device 2, and the deacidification powder subjected to water adding wall breaking mixing is in a semi-dry state and is conveyed into the deacidification device 2 by the humidifying wall breaking machine 4. Above-mentioned process is "increase primary circuit" of deacidification powder, and after the deacidification powder was accomplished stripping process and increase process, most got into dust collector 3 and subsided, has alleviateed dust collector 3's load, and the deacidification powder that gets into dust collector 3 and subsides gets into humidification broken wall machine 4 through dust remover funnel 31 and adds water, stirring, broken wall, drops into deacidification device 2 again after improving the validity of deacidification powder.
The humidification wall breaking machine 4 is independently arranged, a new reaction surface of materials is cut open while the materials are conveyed, the end parts of the first guide plate 254 and the second guide plate 255 and the mixer 5 break a material curing shell to prevent the materials from caking, water is added into the reactor to break the wall and mix, the overall humidity of the materials is balanced, the condition that the local materials are over-wet is avoided, the number of the materials of each part of the system is equal, the loose fluidization performance of the materials is good, the phenomenon that the materials are hardened and the reactor is stuck on the wall is avoided, the phenomenon that the deacidification device 2 is internally added with water to cause the deacidification powder to be stuck on the wall and caked is avoided, and the problem that the existing semi-dry deacidification technology is easy to scale and block is solved.
The water is used as a medium, gas, solid and liquid phases are mixed, a suspended gas layer is not built, the reaction time is shortened by utilizing the Tesla valve principle, the reaction efficiency is improved, the system inlet temperature, the concentration of acidic compounds and the adaptability of the smoke volume are good, the problem of high pressure drop of the existing semi-dry type deacidification technology is solved, the Venturi effect is abandoned, a throat structure is not arranged, the suspended gas layer is not arranged, the effect increasing part is provided with a first guide plate 254 and a second guide plate 255 for drainage, the deacidification and dedusting integrated design effectively reduces the system pressure drop, saves energy and reduces resistance.
The material box 23 is in a V-shaped structure, the upper opening is wide, airflow can pass through the material box easily, energy is saved, resistance is reduced, deacidification powder is collected at the narrow lower opening, and deacidification powder with smaller meshes in the material box 23 is discharged from the bottom of the material box 23; the feed box 23 is connected with a feed box ejector 26 and a roots blower 27, and the roots blower 27 outputs hot air. The ash is conveyed to the upper part of the lifting part 24 by a Roots blower 27 and a bin ejector 26 by a dense phase ash conveying method to continue to participate in the reaction. The air outlet of the Roots blower 27 is hot air, and hot air circulation enables hotter air to improve the temperature of the deacidification powder in the process of mixing and conveying with the deacidification powder, so that the reaction in the deacidification device 2 is promoted.
The process is an 'efficiency-enhancing secondary loop' of the deacidification powder, the materials are more fully reacted through a 'double-loop mode' and 'two processes', efficient utilization of the materials is achieved, the inner and outer double loops easily cope with flue gas flow and temperature change, real-time flow management and control and reactor external water wall breaking mixing are adopted for the deacidification powder according to the actual working condition of flue gas flow, gas, solid and liquid simultaneously participate in reaction in the reactor, the Venturi effect is abandoned, a suspended gas layer is not arranged, the effectiveness of the deacidification powder in the reaction process is enhanced, the problems of material adhesion and connection blocks, blockage, equipment corrosion and the like in the reactor are solved, the deacidification device 2 is not provided with the suspended layer, the system is stable, pressure loss is small, the deacidification effect is good, and the utilization rate of the deacidification powder is high.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. The utility model provides a half-dry deacidification dust removal integrated device which characterized in that, includes deacidification device and dust collector, wherein:
the deacidification device comprises a deacidification device body, an inlet part is arranged on the side edge of the deacidification device body, the deacidification device body sequentially comprises a material box, a lifting part and a synergistic part from bottom to top, and the dust removal device is arranged at the outlet end of the synergistic part and communicated with the synergistic part;
increase portion includes shell, outer arc board with the shell forms the increase room of circular arc domes the indoor vortex plate and a plurality of guide plate of once being provided with tesla of increasing efficiency, the vortex plate is once for tesla the guide plate is the arc structure, the vortex plate sets up once for tesla the entrance point of increase portion, and is a plurality of the guide plate distributes side by side and all with the vortex plate is once for tesla sets up relatively, and the flue gas is followed entrance part gets into deacidification device is originally internal, passes through from bottom to top promote portion with increase portion, the material that the reaction is comparatively abundant follows under the effect of centrifugal force outer arc board is peeled off from the air current, and the insufficient material of reaction is in increase is indoor circling round and is increased.
2. The integrated semi-dry deacidification and dedusting device as set forth in claim 1, wherein a tesla secondary vortex plate and a material homogenizing plate are further disposed in the synergy chamber, the tesla secondary vortex plate is disposed below the plurality of guide plates, and the material homogenizing plate is disposed at the outlet end of the synergy part.
3. The semi-dry type deacidification and dust removal integrated device according to claim 1, wherein the dust removing device comprises a dust remover funnel, a dust remover body and a dust remover air purifying chamber in sequence from bottom to top, a humidifying wall breaking machine is arranged at the bottom of the dust remover funnel, and an outlet of the humidifying wall breaking machine is connected with the inlet.
4. The integrated semi-dry deacidification and dedusting device as set forth in claim 1, wherein the inlet portion, the bin and the lifting portion are integrally formed in a J-shaped structure, and the inlet portion, the bin, the lifting portion and the synergistic portion are integrally formed in an elongated G-shaped structure.
5. The integrated semi-dry deacidification and dedusting device as set forth in claim 1, wherein a valve and a mixer are provided at the inlet part.
6. The integrated semi-dry deacidification and dedusting device as set forth in claim 1, wherein the material box is in a V-shaped structure.
7. The integrated semi-dry deacidification and dedusting device as claimed in claim 1, wherein a bin injector and a roots blower are connected to the bin, and the roots blower outputs hot air.
8. The integrated semi-dry deacidification and dedusting device as claimed in claim 1, wherein a raw material bin is connected to the deacidification device body, deacidification powder is arranged in the raw material bin, and deacidification powder in the raw material bin is conveyed into the deacidification device body by a bin lower ejector.
9. The integrated semi-dry deacidification and dedusting device as set forth in claim 1, wherein the moving distance of the flue gas in the deacidification device is 20-37 m.
10. The integrated semi-dry deacidification and dedusting device as set forth in claim 1, wherein there are two sets of dedusting devices, both sets of dedusting devices are connected to the outlet end of the synergistic portion, and the two sets of dedusting devices are respectively disposed at two sides of the synergistic portion.
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| CN202111115784.9A CN113750776A (en) | 2021-09-23 | 2021-09-23 | Half-dry type deacidification dust removal integrated device |
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| CN202111115784.9A CN113750776A (en) | 2021-09-23 | 2021-09-23 | Half-dry type deacidification dust removal integrated device |
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| GB881201A (en) * | 1959-04-29 | 1961-11-01 | Kloeckner Humboldt Deutz Ag | An installation for preheating powdered cement raw material |
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| CN112221325A (en) * | 2020-10-20 | 2021-01-15 | 威海市正大环保设备股份有限公司 | Circulating double-feeding dry desulfurization method |
| CN113144771A (en) * | 2021-03-29 | 2021-07-23 | 北京科技大学 | Flue gas deacidification dust removal integrated device based on dense-phase dry tower |
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| GB881201A (en) * | 1959-04-29 | 1961-11-01 | Kloeckner Humboldt Deutz Ag | An installation for preheating powdered cement raw material |
| DK598488D0 (en) * | 1987-10-30 | 1988-10-27 | Mitsubishi Heavy Ind Ltd | REMOVAL TYPE REMOVER |
| CN2533941Y (en) * | 2002-03-01 | 2003-02-05 | 姜政华 | Combined high-efficiency wet desulfurizing separator |
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| CN212017374U (en) * | 2020-04-22 | 2020-11-27 | 上海环境工程设计研究院有限公司 | Deacidifying cooling water conservation dust removal integrated device |
| CN112221325A (en) * | 2020-10-20 | 2021-01-15 | 威海市正大环保设备股份有限公司 | Circulating double-feeding dry desulfurization method |
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Application publication date: 20211207 |