CN110368789A - It is a kind of to remove flue gas processing device for furfural dregs fluidized bed - Google Patents
It is a kind of to remove flue gas processing device for furfural dregs fluidized bed Download PDFInfo
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- CN110368789A CN110368789A CN201910700436.4A CN201910700436A CN110368789A CN 110368789 A CN110368789 A CN 110368789A CN 201910700436 A CN201910700436 A CN 201910700436A CN 110368789 A CN110368789 A CN 110368789A
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- Prior art keywords
- flue gas
- gas
- hydrogen chloride
- fluidized bed
- furfural dregs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
- B01D47/063—Spray cleaning with two or more jets impinging against each other
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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
- B01D53/68—Halogens or halogen compounds
-
- 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
- B01D53/68—Halogens or halogen compounds
- B01D53/685—Halogens or halogen compounds by treating the gases with solids
-
- 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
- B01D53/75—Multi-step processes
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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
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/30—Alkali metal compounds
- B01D2251/304—Alkali metal compounds of sodium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
- B01D2251/604—Hydroxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
- B01D2251/606—Carbonates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/20—Halogens or halogen compounds
- B01D2257/204—Inorganic halogen compounds
- B01D2257/2045—Hydrochloric acid
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of flue gas processing device that goes for furfural dregs fluidized bed, dedusting mechanism and adsorbent equipment further include dioxin removal mechanism, and adsorbent equipment includes hydrogen chloride just processing mechanism and hydrogen chloride depth processing mechanism；The first processing mechanism of the dedusting mechanism, hydrogen chloride, hydrogen chloride depth processing mechanism and dioxin removal mechanism are sequentially communicated setting with gas flow.The present invention has the advantage that the comprehensive removal present invention comprises dedusting, HCl and dioxin compared with prior art, most effective to play clean-up effect to flue gas, has reached the standard of environment protection emission, structure is simple to operation, reduces the production cost of device；The flue gas just discharged after burning also can be used directly, the temperature of flue gas can be effectively reduced, the influence for avoiding the later period from absorbing pernicious gas.
Description
Technical field
The present invention relates to fluidized bed field more particularly to a kind of fume treatment is gone to fill for furfural dregs fluidized bed
It sets.
Background technique
Fluidized bed, which refers to, is suspended in a large amount of solid particles among the fluid of movement, so that particle be made to have the certain of fluid
Appearance features.This contact condition admittedly that flows is known as fluidization of solid, i.e. fluidized bed.It is with particulate fluidization state and aggregative fluidization state
Two class fluidized states.
Furfural dregs are biomass substance such as corncob, cornstalk, rice husk, cotton seed hulls and agricultural byproducts processing leftover bits and pieces
In the biomass class waste that generates of poly-pentose ingredient hydrolysis production furfural (furtural), fugitive constituent is high, and water content is high, and
A little acid solution is remained, ash content is low.The utilization ways of most of furfural dregs are as follows: it is burnt using small-sized fixed grate fire, but this
Sample is extremely difficult to national requirements for environmental protection；Or stack naturally, it discards, generates pollution.It is increasingly stringent due to national environmental protection policy
With stepping up for living standards of the people, a kind of new technology is sought in an urgent demand, and furfural dregs are sufficiently sharp from original state
It uses, to reach the double requirements of economical and environmentally friendly benefit.
Belong to biomass fuel in furfural dregs, not sulfur-bearing phosphorus, do not generate sulfur dioxide and phosphorus pentoxide in burning,
It is free from environmental pollution, it has been found that oxygen content is higher in furfural dregs, and fires because not polluting atmosphere without causing acid rain to generate
Oxygen content is very low in ash after burning, mainly with HCI gas evolution, while containing furosemide feeding formaldehyde in furfural dregs, when burning insufficient
Polyoxy dibenzo furosemide feeding (PCDFs- dioxin) will be generated, pernicious gas is belonged to, so using that should have when furfural dregs rationally
Ignition temperature and the residence time, generally require in-furnace temperature be greater than 850 DEG C, guarantee the residence time be greater than 2s, in order to one
Denier production PCDFs- dioxin decomposes completely in furnace.
Be currently used for furfural dregs fluidized bed goes cigarette device structure complicated, and function relatively simpleization can not be completely to cigarette
Dirt body, hydrogen chloride in gas etc. effectively remove, and the dioxin that minority contains also cannot be removed effectively；It is general simultaneously to remove
The dedusting of high-temperature gas is not adapted to if dirt device (such as exhaust dust device with bag), effect is poor.
Summary of the invention
Technical problem to be solved by the present invention lies in: be currently used for furfural dregs fluidized bed goes cigarette device structure complicated,
Function relatively simpleization completely can not effectively remove dirt body, the hydrogen chloride etc. in flue gas, the dioxin that minority contains
It cannot effectively remove.For this purpose, providing a kind of flue gas processing device is removed for furfural dregs fluidized bed.
The present invention is to solve above-mentioned technical problem by the following technical programs:
A kind of flue gas processing device that goes for furfural dregs fluidized bed, dedusting mechanism and adsorbent equipment, further include dioxin
Removal mechanism, adsorbent equipment include hydrogen chloride just processing mechanism and hydrogen chloride depth processing mechanism；At the beginning of the dedusting mechanism, hydrogen chloride
Processing mechanism, hydrogen chloride depth processing mechanism and dioxin removal mechanism are sequentially communicated setting with gas flow.
Further, the dedusting mechanism include gas wash tower equipped with cooling water, be opened in the first of dedusting tower side wall into
Port and the first gas outlet, set on the spray head of gas wash tower inner top, the spray head is connect with water inlet pipe, the gas wash tower bottom
Portion side offers sewage draining exit, and the sewage draining exit is equipped with the control valve of control of sewage disposal.
Further, the discharge outlet that dedusting tower bottom also opens up is connected with return pipe between the spray head and discharge outlet,
Discharge outlet inlet below the sewage draining exit is provided with drainage layer.
Further, the spray head bottom is uniform, is connected to equipped with multiple spouts.
Further, just processing mechanism includes shell and the inner casing in shell to the hydrogen chloride, shell and inner casing it
Between there are spacing；Described shell one end offers the second air inlet, the other end runs through second for being equipped with and being connected with same end inner casing
Gas outlet is closely equipped with adsorption layer on the inner casing outer wall between shell and inner casing, be uniformly provided on inner casing outer wall in inner casing
The air hole communicated, air hole open up the arrangement range that range is no more than adsorption layer；Second air inlet passes through with the first gas outlet
The connection of first connecting tube.
Further, the hydrogen chloride depth processing mechanism includes the processing pond that sodium hydroxide solution is housed, is opened in processing
Bottom of pond portion side and the third air inlet being connect with the second gas outlet, the third gas outlet being opened at the upper side of processing pond, institute
It states and offers inlet above processing pond, lower section offers liquid outlet.
Further, the microbubble generation group connecting with third air inlet outlet side is also equipped in the processing pond liquid
Part, the microbubble generating assembly is hollow structure and top is uniformly provided with foam hole.
Further, the dioxin removal mechanism includes the absorption cell for being provided with dioxin absorbent, is opened in absorption
4th air inlet of bottom of pond portion side, the 4th gas outlet being opened at the upper side of absorption cell, the 4th air inlet and third
Gas outlet is connected by the second connecting tube；Absorbent import is offered above absorption cell, lower section offers absorbent outlet.
The present invention has the advantage that present invention comprises the synthesis of dedusting, HCl gas and dioxin compared with prior art
Removal, it is most effective that clean-up effect is played to flue gas, reach the standard of environment protection emission, structure is simple to operation, reduces dress
The production cost set；The flue gas just discharged after burning also can be used directly, the temperature of flue gas can be effectively reduced,
The influence for avoiding the later period from absorbing pernicious gas.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the structural schematic diagram of dedusting mechanism；
Fig. 3 is the structural schematic diagram of the first processing mechanism of hydrogen chloride；
Fig. 4 is the structural schematic diagram of hydrogen chloride depth processing mechanism；
Fig. 5 is the structural schematic diagram of dioxin removal mechanism.
Specific embodiment
It elaborates below to the embodiment of the present invention, the present embodiment carries out under the premise of the technical scheme of the present invention
Implement, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to following implementation
Example.
Embodiment 1
As shown in Figure 1, a kind of flue gas processing device that goes for furfural dregs fluidized bed, dedusting mechanism 1 and adsorbent equipment, also
Including dioxin removal mechanism 4, adsorbent equipment includes hydrogen chloride just processing mechanism 2 and hydrogen chloride depth processing mechanism 3；The dedusting
Just processing mechanism 2, hydrogen chloride depth processing mechanism 3 and dioxin removal mechanism 4 are sequentially communicated with gas flow for mechanism 1, hydrogen chloride
Setting.
The dedusting mechanism 1 includes the gas wash tower 11 that cooling water is housed, the first air inlet for being opened in 11 side wall of gas wash tower
12 and first gas outlet 13, set on the spray head 15 of 11 inner top of gas wash tower, the spray head 15 is connect with water inlet pipe 152, institute
It states 11 bottom side of gas wash tower and offers sewage draining exit 17, the sewage draining exit 17 is equipped with the control valve 171 of control of sewage disposal.
The discharge outlet 14 that 11 bottom of gas wash tower also opens up is connected with return pipe between the spray head 15 and discharge outlet 14
16,14 inlet of discharge outlet of 17 lower section of sewage draining exit is provided with drainage layer 141.The clear water filtered out through filtered water level 141 is also
It can be reused by the recycling of return pipe 16, avoid the waste of resource.
15 bottom of spray head uniformly, connection be equipped with multiple spouts 151, the cooling water that spout 151 makes spray lower with
Smoke contacts are more uniform.
Just processing mechanism 2 includes shell 21 and the inner casing 22 in shell 21, shell 21 and inner casing 22 to the hydrogen chloride
Between there are spacing；Described 21 one end of shell offers the second air inlet 23, the other end runs through to be equipped with and be connected with same end inner casing 22
The second logical gas outlet 24 is closely equipped with adsorption layer 25,22 outer wall of inner casing on 22 outer wall of inner casing between shell 21 and inner casing 22
On be uniformly provided with the air hole 251 communicated in inner casing 22, air hole 251 opens up the arrangement model that range is no more than adsorption layer 25
It encloses；Second air inlet 23 is connect with the first gas outlet 13 by the first connecting tube 19.Flue gas mainly enters shell 21 and inner casing
Gap between 22 after the initial absorption by adsorption layer 25, enters interior then by adsorption layer 25 from air hole 251
It in shell 22, is finally discharged from the second gas outlet 24, wherein adsorption layer 25 is sodium bicarbonate particle, can be to the HCl in flue gas
Gas carries out preliminary neutralize and absorbs.
The hydrogen chloride depth processing mechanism 3 includes the processing pond 31 that sodium hydroxide solution is housed, is opened in 31 bottom of processing pond
Portion side and the third air inlet 32 being connect with the second gas outlet 24, the third gas outlet for being opened in 31 upper side of processing pond
33, inlet 34 is offered above the processing pond 31, lower section offers liquid outlet 35.Inlet 34 and liquid outlet 35 be in order to
It is convenient to replace sodium hydroxide solution (the either sodium hydroxide solution absorption of the replacement including concentration different demands according to actual needs
The neutralization become after HCl gas needs replacing), it is also equipped in 31 liquid of processing pond and 32 outlet side of third air inlet connects
The microbubble generating assembly 36 connect, the microbubble generating assembly 36 is hollow structure and top is uniformly provided with foam hole 361,
Gas can generate bubble when flowing out from foam hole 361, not only by gas, more uniform to be dispersed in sodium hydroxide molten for foam hole 361
In liquid, the bubble of generation also promotes the flowing between sodium hydroxide solution and gas, further improves sodium hydroxide solution
Absorption to HCl gas in flue gas.
The dioxin removal mechanism 4 includes the absorption cell 41 for being provided with dioxin absorbent, is opened in 41 bottom of absorption cell
4th air inlet 42 of portion side, the 4th gas outlet 43 for being opened in the upper side of absorption cell 41, the 4th air inlet 42 with
Third gas outlet 33 is connected by the second connecting tube 44；Absorbent import 45 is offered above absorption cell 41, lower section offers suction
Receive agent outlet 46.Absorbent import 45 and absorbent outlet 46 are to replace absorbent for convenience, in order to guarantee absorption cell 41
To the assimilation effect of dioxin.
Since dioxin belongs to liposoluble substance, be not dissolved in water, be soluble in oil and organic compound, and very soluble in
Alcohols organic compound；Wherein propylene glycol viscosity is smaller, and mobility is strong, convenient for spray operation, so dioxin absorbent uses
Using propylene glycol and glycerine mixed solvent, the characteristics of compatible two kinds of solvents, while the mobility of glycerine is improved.
Specifically, flue gas successively passes through dedusting mechanism 1, hydrogen chloride just processing mechanism 2, hydrogen chloride depth processing mechanism 3 and two
It dislikes English removal mechanism 4 to be dusted, HCl gas initial absorption and deep absorption, the absorption of a small amount of dioxin gas.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and what is described in the above embodiment and the description is only the present invention
Principle, various changes and improvements may be made to the invention without departing from the spirit and scope of the present invention, these variation and
Improvement is both fallen in the range of claimed invention.The present invention claims protection scope by appended claims and its
Equivalent defines.
Claims (8)
1. a kind of flue gas processing device that goes for furfural dregs fluidized bed, dedusting mechanism (1) and adsorbent equipment, it is characterised in that:
It further include dioxin removal mechanism (4), adsorbent equipment includes hydrogen chloride just processing mechanism (2) and hydrogen chloride depth processing mechanism (3)；
The dedusting mechanism (1), hydrogen chloride just processing mechanism (2), hydrogen chloride depth processing mechanism (3) and dioxin removal mechanism (4) with
Gas flow is sequentially communicated setting.
2. a kind of flue gas processing device is removed for furfural dregs fluidized bed according to claim 1, it is characterised in that: described
Dedusting mechanism (1) include equipped with cooling water gas wash tower (11), be opened in gas wash tower (11) side wall the first air inlet (12) and
First gas outlet (13), the spray head (15) for being set to gas wash tower (11) inner top, the spray head (15) and water inlet pipe (152) are even
It connects, gas wash tower (11) bottom side offers sewage draining exit (17), and the sewage draining exit (17) is equipped with the control of control of sewage disposal
Valve (171).
3. a kind of flue gas processing device is removed for furfural dregs fluidized bed according to claim 2, it is characterised in that: dedusting
The discharge outlet (14) that tower (11) bottom also opens up is connected with return pipe (16) between the spray head (15) and discharge outlet (14),
Discharge outlet (14) inlet below the sewage draining exit (17) is provided with drainage layer (141).
4. a kind of flue gas processing device is removed for furfural dregs fluidized bed according to claim 2, it is characterised in that: described
Spray head (15) bottom is uniform, connection is equipped with multiple spouts (151).
5. a kind of flue gas processing device is removed for furfural dregs fluidized bed according to claim 1, it is characterised in that: described
Just processing mechanism (2) includes shell (21) and the inner casing (22) that is set in shell (21) to hydrogen chloride, shell (21) and inner casing (22)
Between there are spacing；Described shell (21) one end offer the second air inlet (23), the other end run through be equipped with and same end inner casing
(22) the second gas outlet (24) being connected closely is equipped with absorption on inner casing (22) outer wall between shell (21) and inner casing (22)
Layer (25) is uniformly provided on inner casing (22) outer wall and opens up with the interior air hole (251) communicated of inner casing (22), air hole (251)
Range is no more than the arrangement range of adsorption layer (25)；Second air inlet (23) and the first gas outlet (13) pass through the first connecting tube
(19) it connects.
6. a kind of flue gas processing device is removed for furfural dregs fluidized bed according to claim 1, it is characterised in that: described
Hydrogen chloride depth processing mechanism (3) includes the processing pond (31) that sodium hydroxide solution is housed, is opened in processing pond (31) bottom side
And the third air inlet (32) being connect with the second gas outlet (24), the third gas outlet being opened at the upper side of processing pond (31)
(33), inlet (34) is offered above the processing pond (31), lower section offers liquid outlet (35).
7. a kind of flue gas processing device is removed for furfural dregs fluidized bed according to claim 6, it is characterised in that: described
The microbubble generating assembly (36) connecting with third air inlet (32) outlet side is also equipped in processing pond (31) liquid, it is described micro-
Bubble generating assembly (36) is hollow structure and top is uniformly provided with foam hole (361).
8. a kind of flue gas processing device is removed for furfural dregs fluidized bed according to claim 1, it is characterised in that: described
Dioxin removal mechanism (4) includes the absorption cell (41) for being provided with dioxin absorbent, is opened in absorption cell (41) bottom side
The 4th air inlet (42), the 4th gas outlet (43) that is opened at the upper side of absorption cell (41), the 4th air inlet (42)
It is connect with third gas outlet (33) by the second connecting tube (44)；Offer above absorption cell (41) absorbent import (45), under
Side offers absorbent outlet (46).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910700436.4A CN110368789A (en) | 2019-07-31 | 2019-07-31 | It is a kind of to remove flue gas processing device for furfural dregs fluidized bed |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910700436.4A CN110368789A (en) | 2019-07-31 | 2019-07-31 | It is a kind of to remove flue gas processing device for furfural dregs fluidized bed |
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| CN110368789A true CN110368789A (en) | 2019-10-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111821797A (en) * | 2020-07-23 | 2020-10-27 | 朱文艳 | Chemical processing waste gas purification tower |
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2019
- 2019-07-31 CN CN201910700436.4A patent/CN110368789A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111821797A (en) * | 2020-07-23 | 2020-10-27 | 朱文艳 | Chemical processing waste gas purification tower |
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