CN111773916B - Suspension bed flue gas desulfurization device and suspension bed flue gas desulfurization system - Google Patents
Suspension bed flue gas desulfurization device and suspension bed flue gas desulfurization system Download PDFInfo
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- CN111773916B CN111773916B CN202010811794.5A CN202010811794A CN111773916B CN 111773916 B CN111773916 B CN 111773916B CN 202010811794 A CN202010811794 A CN 202010811794A CN 111773916 B CN111773916 B CN 111773916B
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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
- B01D53/74—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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- 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
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/508—Sulfur oxides by treating the gases with solids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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Abstract
The invention relates to the field of environmental protection, in particular to a suspension bed flue gas desulfurization device and a suspension bed flue gas desulfurization system. The suspension bed flue gas desulfurization device comprises a desulfurization tower, wherein a suspension section for suspending and absorbing light balls of impurities in flue gas is arranged in the desulfurization tower. Still include the flue gas purification subassembly and utilize the stoving subassembly of flue gas stoving light ball, the stoving subassembly with the flue gas purification subassembly all set up in the desulfurizing tower, and all with the desulfurizing tower is connected, the stoving subassembly set up in one side that the desulfurizing tower is close to the flue gas import relatively, the stoving subassembly with suspension section intercommunication, the flue gas purification subassembly set up in the suspension section is kept away from relatively one side of stoving subassembly, the exhanst gas outlet of desulfurizing tower with the exhanst gas outlet intercommunication of flue gas purification subassembly, the suspension section with the export intercommunication of light ball of flue gas purification subassembly. The suspension bed flue gas desulfurization device has a simple structure, can rapidly desulfurize, and can not generate wastewater.
Description
Technical Field
The invention relates to the field of environmental protection, in particular to a suspension bed flue gas desulfurization device and a suspension bed flue gas desulfurization system.
Background
With the improvement of environmental protection requirements, flue gas desulfurization in the petrochemical industry becomes an indispensable device, and currently applied flue gas desulfurization technologies mainly comprise a dry method, a wet method and a semi-dry method. The flue gas treatment of the heavy oil catalytic cracking device adopts wet flue gas desulfurization, the wet flue gas desulfurization needs water to reduce the temperature of the flue gas to generate a large amount of waste water, and the waste water absorbs SO in the flue gas2The wastewater seriously corrodes equipment, and the wastewater needs to be treated and the desulfurizer needs to be regenerated, so that the whole system is complex to operate and has larger investment; the desulfurizer for dry flue gas desulfurization is in a dry powder state, and although no wastewater is generated, the desulfurization effect is poor, and the application range is limited; the semidry flue gas desulfurization uses desulfurizing agent slurry or wet powdery desulfurizing agent, and is characterized by that it does not reduce flue gas temperature, and its desulfurizing effect is good, and has no water pollution problem. The disadvantages are that the desulfurization reaction is only carried out on the solid surface, a large amount of desulfurizing agent is needed, the reaction time is prolonged, and the equipment investment is increased. The moving bed type semidry flue gas desulfurization can meet the requirement of desulfurization reaction time. Patent CN203750407U describes a moving bed of solid particles, the solid particles being CaCO3Or CaO, lifting solid particles into the moving bed by adopting a pneumatic conveying mode, and spraying water or a desulfurizer into the moving bed; the reaction product is shaken off the surface of the solid particles to form solid waste. The method has the disadvantages that a large amount of fine powder is generated in the pneumatic conveying and feeding process, the fine powder is condensed when meeting water, the normal work of a moving bed is influenced, and unreacted desulfurizer is discharged into solid waste in the vibration separation process, so that the waste of the desulfurizer is caused. Patent CN202590617U describes a moving bed using lightweight ceramic filler balls as carriers, the surface layer of the filler balls is used to carry desulfurizer to contact with flue gas, but the filler balls after reaction need to be cleaned, reaction products and waste water need to be treated again, and flue gas can pass through the moving bed of filler balls under a higher pressure. Patent CN1243028A describes a desulfurization packed tower using inert material balls as carrier, which uses the surface layer of the carrier balls to carry desulfurizing agent to contact with flue gas to achieve the purpose of desulfurization, and the reaction product is discharged out of the device, and the cleaned carrier balls are reused. Because the bed resistance of the packed tower is large, the low-pressure smoke can not be satisfiedThe desulfurization process requirements of (1).
Disclosure of Invention
The object of the present invention includes, for example, providing a suspension bed flue gas desulfurization apparatus and a suspension bed flue gas desulfurization system, which are simple in structure, can rapidly desulfurize without generating wastewater.
Embodiments of the invention may be implemented as follows:
in a first aspect, an embodiment of the present invention provides a suspension bed flue gas desulfurization apparatus, which includes a desulfurization tower, wherein a suspension section for suspending and absorbing light balls of impurities in flue gas is arranged in the desulfurization tower;
the device also comprises a drying component for drying the light balls by using flue gas, wherein the drying component is arranged in the desulfurizing tower and connected with the desulfurizing tower, the drying component is arranged on one side of the desulfurizing tower, which is relatively close to a flue gas inlet, and the drying component is communicated with the suspension section;
it still includes the gas cleaning subassembly, the gas cleaning subassembly set up in the desulfurizing tower, and with the desulfurizing tower is connected, the gas cleaning subassembly set up in the suspension section is kept away from relatively one side of stoving subassembly, the exhanst gas outlet of desulfurizing tower with the exhanst gas outlet intercommunication of gas cleaning subassembly, the suspension section with the export intercommunication of light ball of gas cleaning subassembly.
In an optional embodiment, the drying assembly includes a plurality of descending pipelines, each of the plurality of descending pipelines is disposed on one side of the desulfurization tower relatively close to the flue gas inlet and is connected to the desulfurization tower, and each of the plurality of descending pipelines is communicated with the suspension section.
In an optional embodiment, the desulfurization device further comprises a flue gas distribution plate, wherein the flue gas distribution plate is arranged in the desulfurization tower and is connected with a light ball inlet of the drying assembly;
preferably, the flue gas distribution plate is provided with a plurality of through holes, so that the flue gas can uniformly enter the suspension section, and then the light balls are suspended.
In an optional embodiment, the flue gas purification assembly comprises a flue gas purification section inner partition plate and a flue gas purification section outer partition plate, the flue gas purification section inner partition plate and the flue gas purification section outer partition plate are both arranged in the desulfurization tower and connected with the desulfurization tower, a flow cavity for the light balls to enter the suspension section is formed between the flue gas purification section inner partition plate and the flue gas purification section outer partition plate, the flow cavity is communicated with the suspension section, and the flow cavity is communicated with a flue gas outlet of the desulfurization tower;
preferably, a cavity formed by the partition plate in the flue gas purification section in the desulfurization tower is communicated with the suspension section, and the diameter of the cavity is larger than that of the suspension section;
preferably, the inner partition plate of the flue gas purification section and the outer partition plate of the flue gas purification section are both provided with flue gas holes for flue gas to pass through.
In an optional embodiment, the suspension bed flue gas desulfurization device further comprises a light ball bin bottom plate, and the light ball bin bottom plate is connected with one side, relatively far away from the suspension section, of the partition plate in the flue gas purification section;
preferably, the bottom plate of the light ball bin is in an inverted V shape.
In an optional embodiment, the suspension bed flue gas desulfurization device further comprises a spray device for spraying a desulfurizing agent to the light ball, the spray device is arranged on one side of the desulfurization tower, which is relatively far away from the drying component, and the spray device is arranged in the desulfurization tower and connected with the desulfurization tower.
In a second aspect, an embodiment of the present invention provides a suspension bed flue gas desulfurization system, which includes a vibration device and the suspension bed flue gas desulfurization device according to any one of the foregoing embodiments, where the vibration device is disposed outside the suspension bed flue gas desulfurization device and is communicated with a light ball outlet of a drying assembly.
In an optional embodiment, the suspension bed flue gas desulfurization system further comprises a gas conveying pipeline, wherein the light ball outlet of the vibration device is communicated with one end of the gas conveying pipeline, and the other end of the gas conveying pipeline is communicated with the light ball inlet of the desulfurization tower.
In an optional embodiment, the suspension bed flue gas desulfurization system further comprises a storage member for storing the light-weight balls, the light-weight ball inlet of the storage member is communicated with the light-weight ball outlet of the vibration device, and the light-weight ball outlet of the storage member is communicated with the light-weight ball inlet of the desulfurization tower.
In an alternative embodiment, a valve is arranged on a pipeline between the light ball outlet of the storage part and the light ball inlet of the desulfurization tower.
The embodiment of the invention has the beneficial effects that the suspension section is specifically arranged in the desulfurization tower, so that the light balls for absorbing impurities in the flue gas can be suspended in the suspension section to form a suspension bed, the contact area between the light balls and the flue gas is increased, and the desulfurization effect is improved. Utilize the stoving subassembly to dry the light ball after absorbing the flue gas, be favorable to the recovery of light ball, reduce the production of waste water, utilize the gas cleaning subassembly to further purify the flue gas, promote desulfurization effect.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural diagram of a suspension bed flue gas desulfurization apparatus provided in example 1 of the present invention;
FIG. 2 is a schematic view of a partial structure of a suspension bed flue gas desulfurization apparatus provided in example 1 of the present invention;
FIG. 3 is a schematic structural diagram of a suspended bed flue gas desulfurization system provided in example 2 of the present invention;
fig. 4 is a schematic structural diagram of a suspended bed flue gas desulfurization system provided in embodiment 3 of the present invention.
Icon: 100-a suspension bed flue gas desulfurization device; 110-a desulfurizing tower; 111-a suspended section; 101-light weight balls; 120-a drying component; 121-a descent duct; 130-a flue gas distribution plate; 140-a flue gas cleaning assembly; 141-inner partition board of flue gas purification section; 142-outer baffle of flue gas cleaning section; 143-a flow chamber; 144-a cavity; 150-light ball bin floor; 160-a spray device; 200-a suspension bed flue gas desulfurization system; 210-a vibration device; 300-a suspended bed flue gas desulfurization system; 310-a gas delivery conduit; 320-storage.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
Example 1
Referring to fig. 1, the embodiment provides a suspension bed flue gas desulfurization device 100, which includes a desulfurization tower 110, the desulfurization tower 110 provides necessary space for other devices and desulfurization, a flue gas inlet of the desulfurization tower 110 is located at the bottom of the desulfurization tower 110, and then flue gas flows from bottom to top, so that the acting time and area between the flue gas and a desulfurizing agent can be increased, and the desulfurization effect can be improved.
The suspension section 111 is arranged in the desulfurizing tower 110, the suspension section 111 is used for suspending the light ball 101 capable of absorbing impurities in the flue gas, and the light ball 101 is suspended in the suspension section 111, so that a suspension bed can be formed, the contact area between the light ball 101 and the flue gas is increased, and the flue gas desulfurization is facilitated.
The light ball 101 can adsorb impurities in the flue gas by using the light ball 101 as a carrier, a desulfurizer is attached to the surface of the light ball 101, and the desulfurized light ball 101 attached to the surface of the light ball is contacted with the flue gas, so that the desulfurizer also acts on the flue gas, and the desulfurization is realized. The carrier light ball 101 provided by the embodiment of the invention is round or oval, the equivalent diameter is 1-10 mm, and shallow pits are distributed on the surface of the carrier light ball or the carrier light ball is wrapped by a mesh material.
This suspension bed flue gas desulphurization unit 100 should include drying component 120, and drying component 120 is used for the light ball 101 after the stoving and flue gas effect, forms solid waste material, can not produce waste water. Specifically, the drying assembly 120 is disposed in the desulfurization tower 110 and connected to the desulfurization tower 110, the drying assembly 120 is disposed on a side of the desulfurization tower 110 relatively close to the flue gas inlet, and the drying assembly 120 is communicated with the suspension section 111. After the light balls 101 in the suspension section 111 act with the flue gas, the attachments on the surfaces of the light balls 101 are increased, the mass of the light balls 101 is increased, the flue gas cannot enable the light balls 101 to be located in the suspension section 111, then the light balls 101 slowly descend until reaching the bottom of the suspension section 111, the drying component 120 is communicated with the suspension section 111, and then the light balls 101 which settle to the bottom of the suspension section 111 enter the drying component 120 to be dried.
Specifically, stoving subassembly 120 includes many decline pipelines 121, and with desulfurizing tower 110 is connected, many decline pipeline 121 all and with suspension section 111 intercommunication, many decline pipeline 121 all set up in desulfurizing tower 110 is close to the one side of flue gas import relatively, and the flue gas that lets in has certain heat, many decline pipeline 121 is located one side of flue gas import, and then the flue gas can be many light ball 101 in the decline pipeline 121 is dried, has practiced thrift the resource, has reduced manufacturing cost.
The outlet ends of the light balls 101 of the plurality of descending pipelines 121 are communicated with the outlet of the desulfurizing tower 110, and then the dried light balls 101 can be collected and then recovered.
Further, the suspension bed flue gas desulfurization device 100 further comprises a flue gas distribution plate 130, wherein the flue gas distribution plate 130 is arranged in the desulfurization tower 110 and is connected with an inlet of the light ball 101 of the drying component 120; that is, the flue gas distribution plate 130 is connected with the inlets of the light balls 101 of the plurality of descending pipes 121, and the flue gas distribution plate 130 enables the flue gas to be distributed more uniformly in the suspension section 111, so that the flue gas can fully act on the light balls 101, and the light balls 101 can be suspended in the suspension section 111, so as to form a suspension bed.
Further, a plurality of through holes are formed in the flue gas distribution plate 130, so that flue gas can uniformly enter the suspension section 111, and then the light balls 101 are suspended.
Further, suspension bed flue gas desulfurization device 100 still includes gas cleaning subassembly 140, and gas cleaning subassembly 140 can absorb the impurity in the flue gas, promotes desulfurization efficiency then. Flue gas purification subassembly 140 set up in the desulfurizing tower 110, and with the desulfurizing tower 110 is connected, flue gas purification subassembly 140 set up in suspension section 111 keeps away from relatively one side of stoving subassembly 120, the exhanst gas outlet of desulfurizing tower 110 with flue gas purification subassembly 140's exhanst gas outlet intercommunication, suspension section 111 with flue gas purification subassembly 140's light ball export intercommunication. The flue gas passing through the suspension section 111 passes through the flue gas purification assembly 140 for further purification, and then flows out from the flue gas outlet of the desulfurization tower 110.
Further, the flue gas assembly further comprises a flue gas purification section inner partition plate 141 and a flue gas purification section outer partition plate 142, the flue gas purification section inner partition plate 141 and the flue gas purification section outer partition plate 142 are both arranged in the desulfurization tower 110 and connected with the desulfurization tower 110, and the flue gas purification section inner partition plate 141 and the flue gas purification section outer partition plate 142 are oppositely arranged, so that a flow cavity 143 for the light balls 101 to enter the suspension section 111 is formed, the flow cavity 143 is communicated with the suspension section 111, the light balls 101 passing through the flow cavity 143 can enter the suspension section 111, and meanwhile, the flow cavity 143 is communicated with a flue gas outlet of the desulfurization tower 110; the flue gas treated by the flue gas assembly can then flow out of the flue gas of the desulfurization tower 110.
Further, the inner partition 141 of the flue gas cleaning section and the outer partition 142 of the flue gas cleaning section are both provided with flue gas holes for flue gas to pass through. Then, the flue gas passing through the suspension section 111 can enter the flow cavity 143 from the inner partition plate 141 of the flue gas purification section, and act with the light balls 101 in the flow cavity 143 to further remove impurities in the flue gas, and then the flue gas flows out from the outer partition plate 142 of the flue gas purification section and finally flows out of the desulfurization tower 110.
Further, the cavity 144 formed in the desulfurization tower 110 by the inner partition plate 141 of the flue gas purification section is arranged along the circumference of the desulfurization tower 110, and then a cavity 144 is formed in the desulfurization tower 110, the shape of the cavity 144 may be circular or square or other shapes, and the cavity 144 is communicated with the suspension section 111, and then the flue gas passing through the suspension section 111 can enter the cavity 144, and then enter the flow cavity 143 through the inner partition plate 141 of the flue gas purification section, and then flow out through the flue gas outlet of the desulfurization tower 110. Meanwhile, the diameter of the cavity 144 is larger than that of the suspending section 111; because the cavity 144 is communicated with the suspension section 111, the light balls 101 are in a suspension state under the action of the smoke, and if the smoke introduction amount is too large, the light balls 101 may enter the cavity 144 to influence the flow of the smoke, so that after the diameter of the cavity 144 is larger than that of the suspension section 111, the acting force of the smoke on the light balls 101 is reduced after the light balls 101 enter the cavity 144, and then the light balls 101 fall back to the suspension section 111 again, thereby ensuring the action effect of the light balls 101 and the smoke.
Further, the suspension bed flue gas desulfurization device 100 further comprises a light ball bin bottom plate 150, the light ball bin bottom plate 150 is connected with one side, relatively far away from the suspension section 111, of the flue gas purification section inner partition plate 141, and the light ball bin bottom plate 150 is of an inverted V shape. The light ball bin floor 150 not only allows the light balls 101 to accumulate on the light ball bin floor 150 for a short storage of the light balls 101, but also allows the light balls 101 to slowly enter the flow chamber 143 and fall to the levitation section 111. Simultaneously, light ball feed bin bottom plate 150 and the effect of flue gas purification section inner baffle 141 prevent that light ball 101 from directly falling into cavity 144, and then directly getting into suspension section 111 for light ball 101 must flow the chamber 143 through, makes the flue gas can further do the light ball 101 effect in the chamber 143 that flows, promotes the desulfurization effect.
Referring to fig. 2, further, the light ball 101 entering the desulfurization tower 110 may be a light ball 101 with a wetted surface containing a desulfurizing agent, or a light ball 101 without a surface containing a desulfurizing agent. If the light ball 101 does not contain the desulfurizer on the surface, the desulfurizer needs to act on the light ball 101, and then the desulfurizer is attached to the surface of the light ball 101, and the desulfurizer acts on the light ball 101 through the spraying device 160 in this embodiment.
Specifically, the spraying device 160 is disposed on a side of the desulfurization tower 110 relatively far away from the drying assembly 120, and the spraying device 160 is disposed in the desulfurization tower 110 and connected to the desulfurization tower 110. The structure of the shower device 160 is the same as that of the conventional shower device 160.
The working process of the suspension bed flue gas desulfurization device 100 provided by this embodiment is as follows:
the spraying device 160 sprays the liquid containing the desulfurizer, so that the liquid acts on the light balls 101 on the light ball bin bottom plate 150, the surface of the light balls 101 contains the desulfurizer, then the light balls 101 slide to the flow cavity 143, fall to the suspension section 111 and suspend, the light balls 101 suck impurities in flue gas, and along with the increase of the weight of attachments on the surface of the light balls 101, the light balls 101 gradually settle to the bottom of the suspension section 111, then fall to the descending channel, and then fall out of the light balls 101 of the desulfurization tower 110.
The flue gas gets into the flue gas from the flue gas inlet of desulfurizing tower 110 to carry out the heat exchange with descending conduit 121, dry light ball 101 in descending conduit 121, and then the flue gas passes through flue gas distribution plate 130 and gets into suspension section 111, make light ball 101 suspend, and with the light ball 101 of suspension state, get rid of the impurity in the flue gas, and then the flue gas flows into cavity 144, gets into flow chamber 143 through flue gas purification section inner baffle 141 again, and with the light ball 101 effect in flow chamber 143, further purify the flue gas, and then pass through flue gas purification section outer baffle 142, flow out from the exhanst gas outlet of desulfurizing tower 110 at last, realized the desulfurization of flue gas then.
Example 2
Referring to fig. 3, the present embodiment provides a suspension bed flue gas desulfurization system 200, where the suspension bed flue gas desulfurization system 200 includes a vibration device 210 and the suspension bed flue gas desulfurization device 100 provided in embodiment 1, and the vibration device 210 is disposed outside the suspension bed flue gas desulfurization device 100 and is communicated with the outlet of the light ball 101 of the drying assembly 120. After the light ball 101 is dried by the drying component 120, the surface of the light ball 101 is adhered to a solid, and the light ball 101 can be treated and recovered.
This embodiment adopts vibrating device 210 to vibrate light ball 101 after drying, makes then the adnexed impurity of drying in light ball 101 surface drop, realizes then the edulcoration, and light ball 101 after the recovery can get into desulfurizing tower 110 through the import of light ball 101 of desulfurizing tower 110 again and carry out the desulfurization once more.
The vibration device 210 is an existing vibration device 210. The vibration device 210 is connected with the outlet of the light ball 101 of the drying assembly 120, that is, the outlet of the light ball 101 of the desulfurizing tower 110.
Example 3
Referring to fig. 4, the present embodiment provides a suspended bed flue gas desulfurization system 300, and the suspended bed flue gas desulfurization system 300 has the same basic structure as the suspended bed flue gas desulfurization system 200 provided in embodiment 2, except that it further includes a gas conveying pipe 310 and a storage unit 320 for storing the light-weight spheres 101.
Specifically, the light balls 101 with the solid impurities on the surface removed by the vibration device 210 can be introduced into the desulfurization tower 110 again for reuse, but the same is recovered and then manually transported into the desulfurization tower 110, which is time-consuming and labor-consuming, therefore, in the embodiment of the present invention, the gas transport pipeline 310 is provided and is communicated with the light ball 101 outlet of the vibration device 210, and then the light balls 101 flowing out of the vibration device 210 are acted by the gas in the gas transport pipeline 310, so that the light balls 101 are transported to the top of the desulfurization tower 110 and enter the desulfurization tower 110 again.
Specifically, the outlet of the light ball 101 of the vibration device 210 is communicated with one end of the gas conveying pipeline 310, and the other end of the gas conveying pipeline 310 is communicated with the inlet of the light ball 101 of the desulfurization tower 110. And in order to ensure that the light balls 101 can be transported back to the top of the desulfurization tower 110, the gas introduced into the gas conveying pipeline 310 is compressed gas, and then the acting force of the gas is ensured.
Further, in order to further improve the mechanization degree of the device, the vibration device 210 is further provided with a waste residue outlet, so that the waste residue and the light balls 101 can be sufficiently separated, and the light balls 101 can be directly transported to the top of the desulfurization tower 110.
Further, the storage 320 is used for storing the light-weight balls 101 passing through the gas conveying pipeline 310, an inlet of the light-weight balls 101 of the storage 320 is communicated with an outlet of the light-weight balls 101 of the vibration device 210, and an outlet of the light-weight balls 101 of the storage 320 is communicated with an inlet of the light-weight balls 101 of the desulfurizing tower 110. Specifically, the inlet of the lightweight ball 101 of the storage 320 is connected to the outlet of the gas delivery pipe 310, which in turn allows the lightweight ball 101 to fall into the storage 320. Meanwhile, a gas outlet is further provided for the storage member 320, which in turn discharges the gas transporting the light balls 101, or the gas outlet of the storage member 320 may be directly communicated with the inlet of the gas delivery pipe 310, which in turn enables the gas to be recycled.
Further, a valve is arranged on a pipeline between the outlet of the light-weight balls 101 of the storage member 320 and the inlet of the light-weight balls 101 of the desulfurizing tower 110, so that the quantity and the speed of the light-weight balls 101 entering the desulfurizing tower 110 can be controlled, and the quantity of the light-weight balls 101 in the suspension section 111 is ensured to be appropriate.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in 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 (14)
1. A suspension bed flue gas desulfurization device is characterized by comprising a desulfurization tower, wherein a suspension section of a light ball for suspending and absorbing impurities in flue gas is arranged in the desulfurization tower;
the device also comprises a drying component for drying the light balls by using flue gas, wherein the drying component is arranged in the desulfurizing tower and connected with the desulfurizing tower, the drying component is arranged on one side of the desulfurizing tower, which is relatively close to a flue gas inlet, and the drying component is communicated with the suspension section;
it still includes the gas cleaning subassembly, the gas cleaning subassembly set up in the desulfurizing tower, and with the desulfurizing tower is connected, the gas cleaning subassembly set up in the suspension section is kept away from relatively one side of stoving subassembly, the exhanst gas outlet of desulfurizing tower with the exhanst gas outlet intercommunication of gas cleaning subassembly, the suspension section with the export intercommunication of light ball of gas cleaning subassembly.
2. The suspended bed flue gas desulfurization device of claim 1, wherein the drying assembly comprises a plurality of descending pipelines, the plurality of descending pipelines are arranged on one side of the desulfurization tower relatively close to the flue gas inlet and are connected with the desulfurization tower, and the lightweight ball inlets of the plurality of descending pipelines are communicated with the suspended section.
3. The suspended bed flue gas desulfurization device of claim 1, further comprising a flue gas distribution plate disposed in the desulfurization tower and connected to the lightweight ball inlet of the drying assembly.
4. The suspension bed flue gas desulfurization device of claim 3, wherein the flue gas distribution plate is provided with a plurality of through holes, so that flue gas can uniformly enter the suspension section, and then the light balls are suspended.
5. The suspended bed flue gas desulfurization device of any one of claims 1 to 4, wherein the flue gas purification assembly comprises a flue gas purification section inner partition and a flue gas purification section outer partition, the flue gas purification section inner partition and the flue gas purification section outer partition are both arranged in the desulfurization tower and connected with the desulfurization tower, a flow cavity for the light balls to enter the suspension section is formed between the flue gas purification section inner partition and the flue gas purification section outer partition, a light ball outlet of the flow cavity is communicated with the suspension section, and the flow cavity is communicated with a flue gas outlet of the desulfurization tower.
6. The suspended bed flue gas desulfurization device of claim 5, wherein the cavity formed by the partition plate in the flue gas purification section in the desulfurization tower is communicated with the suspension section, and the diameter of the cavity is larger than that of the suspension section.
7. The suspended bed flue gas desulfurization device of claim 6, wherein the flue gas cleaning section inner partition and the flue gas cleaning section outer partition are both provided with flue gas holes for flue gas to pass through.
8. The suspended bed flue gas desulfurization device of claim 5, further comprising a light-weight-pellet bin floor, wherein the light-weight-pellet bin floor is connected to a side of the inner partition of the flue gas purification section that is relatively far from the suspended section.
9. The suspended bed flue gas desulfurization device of claim 8, wherein the bottom plate of the lightweight sphere silo is inverted "V" shaped.
10. The suspended bed flue gas desulfurization device of claim 1, further comprising a spray device for spraying a desulfurizing agent to the light ball, wherein the spray device is disposed on a side of the desulfurization tower relatively far from the drying assembly, and the spray device is disposed in the desulfurization tower and connected to the desulfurization tower.
11. A suspension bed flue gas desulfurization system, characterized in that, it includes the vibration device and the suspension bed flue gas desulfurization device of any claim 1-10, the vibration device sets up outside the suspension bed flue gas desulfurization device, and with the export intercommunication of the light ball of stoving subassembly.
12. The suspended bed flue gas desulfurization system of claim 11, further comprising a gas delivery conduit, wherein the outlet of the light-weight ball of the vibration device is in communication with one end of the gas delivery conduit, and the other end of the gas delivery conduit is in communication with the inlet of the light-weight ball of the desulfurization tower.
13. The suspended bed flue gas desulfurization system of claim 11, further comprising a storage member for storing light pellets, wherein the light pellet inlet of the storage member is communicated with the light pellet outlet of the vibration device, and the light pellet outlet of the storage member is communicated with the light pellet inlet of the desulfurization tower.
14. The suspended bed flue gas desulfurization system of claim 13, wherein a valve is disposed on the conduit between the light ball outlet of the storage element and the light ball inlet of the desulfurization tower.
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| CN113332851B (en) * | 2021-02-24 | 2023-08-29 | 薛援 | Dry flue gas desulfurization method for moving bed |
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